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Diffstat (limited to 'src')
125 files changed, 50201 insertions, 0 deletions
diff --git a/src/G72x/ChangeLog b/src/G72x/ChangeLog new file mode 100644 index 0000000..aa108df --- /dev/null +++ b/src/G72x/ChangeLog @@ -0,0 +1,50 @@ +2001-06-05 Erik de Castro Lopo <erikd@mega-nerd.com> + + * g72x.c + Added {} in function update () to prevent 'ambiguous else' warning messages. + +2000-07-14 Erik de Castro Lopo <erikd@mega-nerd.com> + + * g72x.c + Modified g72x_init_state () to fit in with the new structure of the code. + Implemented g72x_encode_block () and g72x_decode_block (). + +2000-07-12 Erik de Castro Lopo <erikd@mega-nerd.com> + + * g72x.h + Moved nearly all definitions and function prototypes from this file have been + moved to private.h. + Added an enum defining the 4 different G72x ADPCM codecs. + Added new function prototypes to define a cleaner interface to the encoder + and decoder. This new interface also allows samples to be processed in blocks + rather than on a sample by sample basis like the original code. + + * private.h + Added prototypes moved from g72x.h. + Changed struct g72x_state to a typedef struct { .. } G72x_PRIVATE. + Added fields to G72x_PRIVATE required for working on blocks of samples. + +2000-06-07 Erik de Castro Lopo <erikd@mega-nerd.com> + + * g72x.c + Fixed all compiler warnings. + Removed functions tandem_adjust() which is not required by libsndfile. + + * g721.c + Fixed all compiler warnings. + Removed functions tandem_adjust_alaw() and tandem_adjust_ulaw () which are not + required by libsndfile. + Removed second parameter to g721_encoder () which is not required. + + * g72x.h + Removed in_coding and out_coding parameters from all functions. These allowed + g72x encoding/decoding to/from A-law or u-law and are not required by libsndfile. + Removed unneeded defines for A-law, u-law and linear encoding. + + * g723_16.c + Removed second parameter (in_coding) for g723_16_encoder(). + Removed second parameter (out_coding) for g723_16_decoder(). + + * private.h + New file containing prototypes and tyepdefs private to G72x code. + diff --git a/src/G72x/README b/src/G72x/README new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/src/G72x/README diff --git a/src/G72x/README.original b/src/G72x/README.original new file mode 100644 index 0000000..23b0e7d --- /dev/null +++ b/src/G72x/README.original @@ -0,0 +1,94 @@ +The files in this directory comprise ANSI-C language reference implementations +of the CCITT (International Telegraph and Telephone Consultative Committee) +G.711, G.721 and G.723 voice compressions. They have been tested on Sun +SPARCstations and passed 82 out of 84 test vectors published by CCITT +(Dec. 20, 1988) for G.721 and G.723. [The two remaining test vectors, +which the G.721 decoder implementation for u-law samples did not pass, +may be in error because they are identical to two other vectors for G.723_40.] + +This source code is released by Sun Microsystems, Inc. to the public domain. +Please give your acknowledgement in product literature if this code is used +in your product implementation. + +Sun Microsystems supports some CCITT audio formats in Solaris 2.0 system +software. However, Sun's implementations have been optimized for higher +performance on SPARCstations. + + +The source files for CCITT conversion routines in this directory are: + + g72x.h header file for g721.c, g723_24.c and g723_40.c + g711.c CCITT G.711 u-law and A-law compression + g72x.c common denominator of G.721 and G.723 ADPCM codes + g721.c CCITT G.721 32Kbps ADPCM coder (with g72x.c) + g723_24.c CCITT G.723 24Kbps ADPCM coder (with g72x.c) + g723_40.c CCITT G.723 40Kbps ADPCM coder (with g72x.c) + + +Simple conversions between u-law, A-law, and 16-bit linear PCM are invoked +as follows: + + unsigned char ucode, acode; + short pcm_val; + + ucode = linear2ulaw(pcm_val); + ucode = alaw2ulaw(acode); + + acode = linear2alaw(pcm_val); + acode = ulaw2alaw(ucode); + + pcm_val = ulaw2linear(ucode); + pcm_val = alaw2linear(acode); + + +The other CCITT compression routines are invoked as follows: + + #include "g72x.h" + + struct g72x_state state; + int sample, code; + + g72x_init_state(&state); + code = {g721,g723_24,g723_40}_encoder(sample, coding, &state); + sample = {g721,g723_24,g723_40}_decoder(code, coding, &state); + +where + coding = AUDIO_ENCODING_ULAW for 8-bit u-law samples + AUDIO_ENCODING_ALAW for 8-bit A-law samples + AUDIO_ENCODING_LINEAR for 16-bit linear PCM samples + + + +This directory also includes the following sample programs: + + encode.c CCITT ADPCM encoder + decode.c CCITT ADPCM decoder + Makefile makefile for the sample programs + + +The sample programs contain examples of how to call the various compression +routines and pack/unpack the bits. The sample programs read byte streams from +stdin and write to stdout. The input/output data is raw data (no file header +or other identifying information is embedded). The sample programs are +invoked as follows: + + encode [-3|4|5] [-a|u|l] <infile >outfile + decode [-3|4|5] [-a|u|l] <infile >outfile +where: + -3 encode to (decode from) G.723 24kbps (3-bit) data + -4 encode to (decode from) G.721 32kbps (4-bit) data [the default] + -5 encode to (decode from) G.723 40kbps (5-bit) data + -a encode from (decode to) A-law data + -u encode from (decode to) u-law data [the default] + -l encode from (decode to) 16-bit linear data + +Examples: + # Read 16-bit linear and output G.721 + encode -4 -l <pcmfile >g721file + + # Read 40Kbps G.723 and output A-law + decode -5 -a <g723file >alawfile + + # Compress and then decompress u-law data using 24Kbps G.723 + encode -3 <ulawin | deoced -3 >ulawout + diff --git a/src/G72x/g721.c b/src/G72x/g721.c new file mode 100644 index 0000000..d305ba8 --- /dev/null +++ b/src/G72x/g721.c @@ -0,0 +1,155 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +/* + * g721.c + * + * Description: + * + * g721_encoder(), g721_decoder() + * + * These routines comprise an implementation of the CCITT G.721 ADPCM + * coding algorithm. Essentially, this implementation is identical to + * the bit level description except for a few deviations which + * take advantage of work station attributes, such as hardware 2's + * complement arithmetic and large memory. Specifically, certain time + * consuming operations such as multiplications are replaced + * with lookup tables and software 2's complement operations are + * replaced with hardware 2's complement. + * + * The deviation from the bit level specification (lookup tables) + * preserves the bit level performance specifications. + * + * As outlined in the G.721 Recommendation, the algorithm is broken + * down into modules. Each section of code below is preceded by + * the name of the module which it is implementing. + * + */ + +#include "g72x.h" +#include "g72x_priv.h" + +static short qtab_721[7] = {-124, 80, 178, 246, 300, 349, 400}; +/* + * Maps G.721 code word to reconstructed scale factor normalized log + * magnitude values. + */ +static short _dqlntab[16] = {-2048, 4, 135, 213, 273, 323, 373, 425, + 425, 373, 323, 273, 213, 135, 4, -2048}; + +/* Maps G.721 code word to log of scale factor multiplier. */ +static short _witab[16] = {-12, 18, 41, 64, 112, 198, 355, 1122, + 1122, 355, 198, 112, 64, 41, 18, -12}; +/* + * Maps G.721 code words to a set of values whose long and short + * term averages are computed and then compared to give an indication + * how stationary (steady state) the signal is. + */ +static short _fitab[16] = {0, 0, 0, 0x200, 0x200, 0x200, 0x600, 0xE00, + 0xE00, 0x600, 0x200, 0x200, 0x200, 0, 0, 0}; + +/* + * g721_encoder() + * + * Encodes the input vale of linear PCM, A-law or u-law data sl and returns + * the resulting code. -1 is returned for unknown input coding value. + */ +int +g721_encoder( + int sl, + G72x_STATE *state_ptr) +{ + short sezi, se, sez; /* ACCUM */ + short d; /* SUBTA */ + short sr; /* ADDB */ + short y; /* MIX */ + short dqsez; /* ADDC */ + short dq, i; + + /* linearize input sample to 14-bit PCM */ + sl >>= 2; /* 14-bit dynamic range */ + + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + se = (sezi + predictor_pole(state_ptr)) >> 1; /* estimated signal */ + + d = sl - se; /* estimation difference */ + + /* quantize the prediction difference */ + y = step_size(state_ptr); /* quantizer step size */ + i = quantize(d, y, qtab_721, 7); /* i = ADPCM code */ + + dq = reconstruct(i & 8, _dqlntab[i], y); /* quantized est diff */ + + sr = (dq < 0) ? se - (dq & 0x3FFF) : se + dq; /* reconst. signal */ + + dqsez = sr + sez - se; /* pole prediction diff. */ + + update(4, y, _witab[i] << 5, _fitab[i], dq, sr, dqsez, state_ptr); + + return (i); +} + +/* + * g721_decoder() + * + * Description: + * + * Decodes a 4-bit code of G.721 encoded data of i and + * returns the resulting linear PCM, A-law or u-law value. + * return -1 for unknown out_coding value. + */ +int +g721_decoder( + int i, + G72x_STATE *state_ptr) +{ + short sezi, sei, sez, se; /* ACCUM */ + short y; /* MIX */ + short sr; /* ADDB */ + short dq; + short dqsez; + + i &= 0x0f; /* mask to get proper bits */ + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + y = step_size(state_ptr); /* dynamic quantizer step size */ + + dq = reconstruct(i & 0x08, _dqlntab[i], y); /* quantized diff. */ + + sr = (dq < 0) ? (se - (dq & 0x3FFF)) : se + dq; /* reconst. signal */ + + dqsez = sr - se + sez; /* pole prediction diff. */ + + update(4, y, _witab[i] << 5, _fitab[i], dq, sr, dqsez, state_ptr); + + /* sr was 14-bit dynamic range */ + return (sr << 2); +} + diff --git a/src/G72x/g723_16.c b/src/G72x/g723_16.c new file mode 100644 index 0000000..ae90b6c --- /dev/null +++ b/src/G72x/g723_16.c @@ -0,0 +1,162 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ +/* 16kbps version created, used 24kbps code and changing as little as possible. + * G.726 specs are available from ITU's gopher or WWW site (http://www.itu.ch) + * If any errors are found, please contact me at mrand@tamu.edu + * -Marc Randolph + */ + +/* + * g723_16.c + * + * Description: + * + * g723_16_encoder(), g723_16_decoder() + * + * These routines comprise an implementation of the CCITT G.726 16 Kbps + * ADPCM coding algorithm. Essentially, this implementation is identical to + * the bit level description except for a few deviations which take advantage + * of workstation attributes, such as hardware 2's complement arithmetic. + * + */ + +#include "g72x.h" +#include "g72x_priv.h" + +/* + * Maps G.723_16 code word to reconstructed scale factor normalized log + * magnitude values. Comes from Table 11/G.726 + */ +static short _dqlntab[4] = { 116, 365, 365, 116}; + +/* Maps G.723_16 code word to log of scale factor multiplier. + * + * _witab[4] is actually {-22 , 439, 439, -22}, but FILTD wants it + * as WI << 5 (multiplied by 32), so we'll do that here + */ +static short _witab[4] = {-704, 14048, 14048, -704}; + +/* + * Maps G.723_16 code words to a set of values whose long and short + * term averages are computed and then compared to give an indication + * how stationary (steady state) the signal is. + */ + +/* Comes from FUNCTF */ +static short _fitab[4] = {0, 0xE00, 0xE00, 0}; + +/* Comes from quantizer decision level tables (Table 7/G.726) + */ +static short qtab_723_16[1] = {261}; + + +/* + * g723_16_encoder() + * + * Encodes a linear PCM, A-law or u-law input sample and returns its 2-bit code. + * Returns -1 if invalid input coding value. + */ +int +g723_16_encoder( + int sl, + G72x_STATE *state_ptr) +{ + short sei, sezi, se, sez; /* ACCUM */ + short d; /* SUBTA */ + short y; /* MIX */ + short sr; /* ADDB */ + short dqsez; /* ADDC */ + short dq, i; + + /* linearize input sample to 14-bit PCM */ + sl >>= 2; /* sl of 14-bit dynamic range */ + + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + d = sl - se; /* d = estimation diff. */ + + /* quantize prediction difference d */ + y = step_size(state_ptr); /* quantizer step size */ + i = quantize(d, y, qtab_723_16, 1); /* i = ADPCM code */ + + /* Since quantize() only produces a three level output + * (1, 2, or 3), we must create the fourth one on our own + */ + if (i == 3) /* i code for the zero region */ + if ((d & 0x8000) == 0) /* If d > 0, i=3 isn't right... */ + i = 0; + + dq = reconstruct(i & 2, _dqlntab[i], y); /* quantized diff. */ + + sr = (dq < 0) ? se - (dq & 0x3FFF) : se + dq; /* reconstructed signal */ + + dqsez = sr + sez - se; /* pole prediction diff. */ + + update(2, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + return (i); +} + +/* + * g723_16_decoder() + * + * Decodes a 2-bit CCITT G.723_16 ADPCM code and returns + * the resulting 16-bit linear PCM, A-law or u-law sample value. + * -1 is returned if the output coding is unknown. + */ +int +g723_16_decoder( + int i, + G72x_STATE *state_ptr) +{ + short sezi, sei, sez, se; /* ACCUM */ + short y; /* MIX */ + short sr; /* ADDB */ + short dq; + short dqsez; + + i &= 0x03; /* mask to get proper bits */ + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + y = step_size(state_ptr); /* adaptive quantizer step size */ + dq = reconstruct(i & 0x02, _dqlntab[i], y); /* unquantize pred diff */ + + sr = (dq < 0) ? (se - (dq & 0x3FFF)) : (se + dq); /* reconst. signal */ + + dqsez = sr - se + sez; /* pole prediction diff. */ + + update(2, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + /* sr was of 14-bit dynamic range */ + return (sr << 2); +} + diff --git a/src/G72x/g723_24.c b/src/G72x/g723_24.c new file mode 100644 index 0000000..02b6c24 --- /dev/null +++ b/src/G72x/g723_24.c @@ -0,0 +1,139 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +/* + * g723_24.c + * + * Description: + * + * g723_24_encoder(), g723_24_decoder() + * + * These routines comprise an implementation of the CCITT G.723 24 Kbps + * ADPCM coding algorithm. Essentially, this implementation is identical to + * the bit level description except for a few deviations which take advantage + * of workstation attributes, such as hardware 2's complement arithmetic. + * + */ + +#include "g72x.h" +#include "g72x_priv.h" + +/* + * Maps G.723_24 code word to reconstructed scale factor normalized log + * magnitude values. + */ +static short _dqlntab[8] = {-2048, 135, 273, 373, 373, 273, 135, -2048}; + +/* Maps G.723_24 code word to log of scale factor multiplier. */ +static short _witab[8] = {-128, 960, 4384, 18624, 18624, 4384, 960, -128}; + +/* + * Maps G.723_24 code words to a set of values whose long and short + * term averages are computed and then compared to give an indication + * how stationary (steady state) the signal is. + */ +static short _fitab[8] = {0, 0x200, 0x400, 0xE00, 0xE00, 0x400, 0x200, 0}; + +static short qtab_723_24[3] = {8, 218, 331}; + +/* + * g723_24_encoder() + * + * Encodes a linear PCM, A-law or u-law input sample and returns its 3-bit code. + * Returns -1 if invalid input coding value. + */ +int +g723_24_encoder( + int sl, + G72x_STATE *state_ptr) +{ + short sei, sezi, se, sez; /* ACCUM */ + short d; /* SUBTA */ + short y; /* MIX */ + short sr; /* ADDB */ + short dqsez; /* ADDC */ + short dq, i; + + /* linearize input sample to 14-bit PCM */ + sl >>= 2; /* sl of 14-bit dynamic range */ + + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + d = sl - se; /* d = estimation diff. */ + + /* quantize prediction difference d */ + y = step_size(state_ptr); /* quantizer step size */ + i = quantize(d, y, qtab_723_24, 3); /* i = ADPCM code */ + dq = reconstruct(i & 4, _dqlntab[i], y); /* quantized diff. */ + + sr = (dq < 0) ? se - (dq & 0x3FFF) : se + dq; /* reconstructed signal */ + + dqsez = sr + sez - se; /* pole prediction diff. */ + + update(3, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + return (i); +} + +/* + * g723_24_decoder() + * + * Decodes a 3-bit CCITT G.723_24 ADPCM code and returns + * the resulting 16-bit linear PCM, A-law or u-law sample value. + * -1 is returned if the output coding is unknown. + */ +int +g723_24_decoder( + int i, + G72x_STATE *state_ptr) +{ + short sezi, sei, sez, se; /* ACCUM */ + short y; /* MIX */ + short sr; /* ADDB */ + short dq; + short dqsez; + + i &= 0x07; /* mask to get proper bits */ + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + y = step_size(state_ptr); /* adaptive quantizer step size */ + dq = reconstruct(i & 0x04, _dqlntab[i], y); /* unquantize pred diff */ + + sr = (dq < 0) ? (se - (dq & 0x3FFF)) : (se + dq); /* reconst. signal */ + + dqsez = sr - se + sez; /* pole prediction diff. */ + + update(3, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + return (sr << 2); /* sr was of 14-bit dynamic range */ +} + diff --git a/src/G72x/g723_40.c b/src/G72x/g723_40.c new file mode 100644 index 0000000..d520395 --- /dev/null +++ b/src/G72x/g723_40.c @@ -0,0 +1,153 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +/* + * g723_40.c + * + * Description: + * + * g723_40_encoder(), g723_40_decoder() + * + * These routines comprise an implementation of the CCITT G.723 40Kbps + * ADPCM coding algorithm. Essentially, this implementation is identical to + * the bit level description except for a few deviations which + * take advantage of workstation attributes, such as hardware 2's + * complement arithmetic. + * + * The deviation from the bit level specification (lookup tables), + * preserves the bit level performance specifications. + * + * As outlined in the G.723 Recommendation, the algorithm is broken + * down into modules. Each section of code below is preceded by + * the name of the module which it is implementing. + * + */ + +#include "g72x.h" +#include "g72x_priv.h" + +/* + * Maps G.723_40 code word to ructeconstructed scale factor normalized log + * magnitude values. + */ +static short _dqlntab[32] = {-2048, -66, 28, 104, 169, 224, 274, 318, + 358, 395, 429, 459, 488, 514, 539, 566, + 566, 539, 514, 488, 459, 429, 395, 358, + 318, 274, 224, 169, 104, 28, -66, -2048}; + +/* Maps G.723_40 code word to log of scale factor multiplier. */ +static short _witab[32] = {448, 448, 768, 1248, 1280, 1312, 1856, 3200, + 4512, 5728, 7008, 8960, 11456, 14080, 16928, 22272, + 22272, 16928, 14080, 11456, 8960, 7008, 5728, 4512, + 3200, 1856, 1312, 1280, 1248, 768, 448, 448}; + +/* + * Maps G.723_40 code words to a set of values whose long and short + * term averages are computed and then compared to give an indication + * how stationary (steady state) the signal is. + */ +static short _fitab[32] = {0, 0, 0, 0, 0, 0x200, 0x200, 0x200, + 0x200, 0x200, 0x400, 0x600, 0x800, 0xA00, 0xC00, 0xC00, + 0xC00, 0xC00, 0xA00, 0x800, 0x600, 0x400, 0x200, 0x200, + 0x200, 0x200, 0x200, 0, 0, 0, 0, 0}; + +static short qtab_723_40[15] = {-122, -16, 68, 139, 198, 250, 298, 339, + 378, 413, 445, 475, 502, 528, 553}; + +/* + * g723_40_encoder() + * + * Encodes a 16-bit linear PCM, A-law or u-law input sample and retuens + * the resulting 5-bit CCITT G.723 40Kbps code. + * Returns -1 if the input coding value is invalid. + */ +int g723_40_encoder (int sl, G72x_STATE *state_ptr) +{ + short sei, sezi, se, sez; /* ACCUM */ + short d; /* SUBTA */ + short y; /* MIX */ + short sr; /* ADDB */ + short dqsez; /* ADDC */ + short dq, i; + + /* linearize input sample to 14-bit PCM */ + sl >>= 2; /* sl of 14-bit dynamic range */ + + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + d = sl - se; /* d = estimation difference */ + + /* quantize prediction difference */ + y = step_size(state_ptr); /* adaptive quantizer step size */ + i = quantize(d, y, qtab_723_40, 15); /* i = ADPCM code */ + + dq = reconstruct(i & 0x10, _dqlntab[i], y); /* quantized diff */ + + sr = (dq < 0) ? se - (dq & 0x7FFF) : se + dq; /* reconstructed signal */ + + dqsez = sr + sez - se; /* dqsez = pole prediction diff. */ + + update(5, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + return (i); +} + +/* + * g723_40_decoder() + * + * Decodes a 5-bit CCITT G.723 40Kbps code and returns + * the resulting 16-bit linear PCM, A-law or u-law sample value. + * -1 is returned if the output coding is unknown. + */ +int g723_40_decoder (int i, G72x_STATE *state_ptr) +{ + short sezi, sei, sez, se; /* ACCUM */ + short y ; /* MIX */ + short sr; /* ADDB */ + short dq; + short dqsez; + + i &= 0x1f; /* mask to get proper bits */ + sezi = predictor_zero(state_ptr); + sez = sezi >> 1; + sei = sezi + predictor_pole(state_ptr); + se = sei >> 1; /* se = estimated signal */ + + y = step_size(state_ptr); /* adaptive quantizer step size */ + dq = reconstruct(i & 0x10, _dqlntab[i], y); /* estimation diff. */ + + sr = (dq < 0) ? (se - (dq & 0x7FFF)) : (se + dq); /* reconst. signal */ + + dqsez = sr - se + sez; /* pole prediction diff. */ + + update(5, y, _witab[i], _fitab[i], dq, sr, dqsez, state_ptr); + + return (sr << 2); /* sr was of 14-bit dynamic range */ +} + diff --git a/src/G72x/g72x.c b/src/G72x/g72x.c new file mode 100644 index 0000000..3fae81a --- /dev/null +++ b/src/G72x/g72x.c @@ -0,0 +1,644 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +/* + * g72x.c + * + * Common routines for G.721 and G.723 conversions. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "g72x.h" +#include "g72x_priv.h" + +static G72x_STATE * g72x_state_new (void) ; +static int unpack_bytes (int bits, int blocksize, const unsigned char * block, short * samples) ; +static int pack_bytes (int bits, const short * samples, unsigned char * block) ; + +static +short power2 [15] = +{ 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80, + 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000 +} ; + +/* + * quan() + * + * quantizes the input val against the table of size short integers. + * It returns i if table[i - 1] <= val < table[i]. + * + * Using linear search for simple coding. + */ +static +int quan (int val, short *table, int size) +{ + int i; + + for (i = 0; i < size; i++) + if (val < *table++) + break; + return (i); +} + +/* + * fmult() + * + * returns the integer product of the 14-bit integer "an" and + * "floating point" representation (4-bit exponent, 6-bit mantessa) "srn". + */ +static +int fmult (int an, int srn) +{ + short anmag, anexp, anmant; + short wanexp, wanmant; + short retval; + + anmag = (an > 0) ? an : ((-an) & 0x1FFF); + anexp = quan(anmag, power2, 15) - 6; + anmant = (anmag == 0) ? 32 : + (anexp >= 0) ? anmag >> anexp : anmag << -anexp; + wanexp = anexp + ((srn >> 6) & 0xF) - 13; + + /* + ** The original was : + ** wanmant = (anmant * (srn & 0x3F) + 0x30) >> 4 ; + ** but could see no valid reason for the + 0x30. + ** Removed it and it improved the SNR of the codec. + */ + + wanmant = (anmant * (srn & 0x3F)) >> 4 ; + + retval = (wanexp >= 0) ? ((wanmant << wanexp) & 0x7FFF) : + (wanmant >> -wanexp); + + return (((an ^ srn) < 0) ? -retval : retval); +} + +static G72x_STATE * g72x_state_new (void) +{ return calloc (1, sizeof (G72x_STATE)) ; +} + +/* + * private_init_state() + * + * This routine initializes and/or resets the G72x_PRIVATE structure + * pointed to by 'state_ptr'. + * All the initial state values are specified in the CCITT G.721 document. + */ +void private_init_state (G72x_STATE *state_ptr) +{ + int cnta; + + state_ptr->yl = 34816; + state_ptr->yu = 544; + state_ptr->dms = 0; + state_ptr->dml = 0; + state_ptr->ap = 0; + for (cnta = 0; cnta < 2; cnta++) { + state_ptr->a[cnta] = 0; + state_ptr->pk[cnta] = 0; + state_ptr->sr[cnta] = 32; + } + for (cnta = 0; cnta < 6; cnta++) { + state_ptr->b[cnta] = 0; + state_ptr->dq[cnta] = 32; + } + state_ptr->td = 0; +} /* private_init_state */ + +struct g72x_state * g72x_reader_init (int codec, int *blocksize, int *samplesperblock) +{ G72x_STATE *pstate ; + + if ((pstate = g72x_state_new ()) == NULL) + return NULL ; + + private_init_state (pstate) ; + + pstate->encoder = NULL ; + + switch (codec) + { case G723_16_BITS_PER_SAMPLE : /* 2 bits per sample. */ + pstate->decoder = g723_16_decoder ; + *blocksize = G723_16_BYTES_PER_BLOCK ; + *samplesperblock = G723_16_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 2 ; + pstate->blocksize = G723_16_BYTES_PER_BLOCK ; + pstate->samplesperblock = G723_16_SAMPLES_PER_BLOCK ; + break ; + + case G723_24_BITS_PER_SAMPLE : /* 3 bits per sample. */ + pstate->decoder = g723_24_decoder ; + *blocksize = G723_24_BYTES_PER_BLOCK ; + *samplesperblock = G723_24_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 3 ; + pstate->blocksize = G723_24_BYTES_PER_BLOCK ; + pstate->samplesperblock = G723_24_SAMPLES_PER_BLOCK ; + break ; + + case G721_32_BITS_PER_SAMPLE : /* 4 bits per sample. */ + pstate->decoder = g721_decoder ; + *blocksize = G721_32_BYTES_PER_BLOCK ; + *samplesperblock = G721_32_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 4 ; + pstate->blocksize = G721_32_BYTES_PER_BLOCK ; + pstate->samplesperblock = G721_32_SAMPLES_PER_BLOCK ; + break ; + + case G721_40_BITS_PER_SAMPLE : /* 5 bits per sample. */ + pstate->decoder = g723_40_decoder ; + *blocksize = G721_40_BYTES_PER_BLOCK ; + *samplesperblock = G721_40_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 5 ; + pstate->blocksize = G721_40_BYTES_PER_BLOCK ; + pstate->samplesperblock = G721_40_SAMPLES_PER_BLOCK ; + break ; + + default : + free (pstate) ; + return NULL ; + } ; + + return pstate ; +} /* g72x_reader_init */ + +struct g72x_state * g72x_writer_init (int codec, int *blocksize, int *samplesperblock) +{ G72x_STATE *pstate ; + + if ((pstate = g72x_state_new ()) == NULL) + return NULL ; + + private_init_state (pstate) ; + pstate->decoder = NULL ; + + switch (codec) + { case G723_16_BITS_PER_SAMPLE : /* 2 bits per sample. */ + pstate->encoder = g723_16_encoder ; + *blocksize = G723_16_BYTES_PER_BLOCK ; + *samplesperblock = G723_16_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 2 ; + pstate->blocksize = G723_16_BYTES_PER_BLOCK ; + pstate->samplesperblock = G723_16_SAMPLES_PER_BLOCK ; + break ; + + case G723_24_BITS_PER_SAMPLE : /* 3 bits per sample. */ + pstate->encoder = g723_24_encoder ; + *blocksize = G723_24_BYTES_PER_BLOCK ; + *samplesperblock = G723_24_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 3 ; + pstate->blocksize = G723_24_BYTES_PER_BLOCK ; + pstate->samplesperblock = G723_24_SAMPLES_PER_BLOCK ; + break ; + + case G721_32_BITS_PER_SAMPLE : /* 4 bits per sample. */ + pstate->encoder = g721_encoder ; + *blocksize = G721_32_BYTES_PER_BLOCK ; + *samplesperblock = G721_32_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 4 ; + pstate->blocksize = G721_32_BYTES_PER_BLOCK ; + pstate->samplesperblock = G721_32_SAMPLES_PER_BLOCK ; + break ; + + case G721_40_BITS_PER_SAMPLE : /* 5 bits per sample. */ + pstate->encoder = g723_40_encoder ; + *blocksize = G721_40_BYTES_PER_BLOCK ; + *samplesperblock = G721_40_SAMPLES_PER_BLOCK ; + pstate->codec_bits = 5 ; + pstate->blocksize = G721_40_BYTES_PER_BLOCK ; + pstate->samplesperblock = G721_40_SAMPLES_PER_BLOCK ; + break ; + + default : + free (pstate) ; + return NULL ; + } ; + + return pstate ; +} /* g72x_writer_init */ + +int g72x_decode_block (G72x_STATE *pstate, const unsigned char *block, short *samples) +{ int k, count ; + + count = unpack_bytes (pstate->codec_bits, pstate->blocksize, block, samples) ; + + for (k = 0 ; k < count ; k++) + samples [k] = pstate->decoder (samples [k], pstate) ; + + return 0 ; +} /* g72x_decode_block */ + +int g72x_encode_block (G72x_STATE *pstate, short *samples, unsigned char *block) +{ int k, count ; + + for (k = 0 ; k < pstate->samplesperblock ; k++) + samples [k] = pstate->encoder (samples [k], pstate) ; + + count = pack_bytes (pstate->codec_bits, samples, block) ; + + return count ; +} /* g72x_encode_block */ + +/* + * predictor_zero() + * + * computes the estimated signal from 6-zero predictor. + * + */ +int predictor_zero (G72x_STATE *state_ptr) +{ + int i; + int sezi; + + sezi = fmult(state_ptr->b[0] >> 2, state_ptr->dq[0]); + for (i = 1; i < 6; i++) /* ACCUM */ + sezi += fmult(state_ptr->b[i] >> 2, state_ptr->dq[i]); + return (sezi); +} +/* + * predictor_pole() + * + * computes the estimated signal from 2-pole predictor. + * + */ +int predictor_pole(G72x_STATE *state_ptr) +{ + return (fmult(state_ptr->a[1] >> 2, state_ptr->sr[1]) + + fmult(state_ptr->a[0] >> 2, state_ptr->sr[0])); +} +/* + * step_size() + * + * computes the quantization step size of the adaptive quantizer. + * + */ +int step_size (G72x_STATE *state_ptr) +{ + int y; + int dif; + int al; + + if (state_ptr->ap >= 256) + return (state_ptr->yu); + else { + y = state_ptr->yl >> 6; + dif = state_ptr->yu - y; + al = state_ptr->ap >> 2; + if (dif > 0) + y += (dif * al) >> 6; + else if (dif < 0) + y += (dif * al + 0x3F) >> 6; + return (y); + } +} + +/* + * quantize() + * + * Given a raw sample, 'd', of the difference signal and a + * quantization step size scale factor, 'y', this routine returns the + * ADPCM codeword to which that sample gets quantized. The step + * size scale factor division operation is done in the log base 2 domain + * as a subtraction. + */ +int quantize( + int d, /* Raw difference signal sample */ + int y, /* Step size multiplier */ + short *table, /* quantization table */ + int size) /* table size of short integers */ +{ + short dqm; /* Magnitude of 'd' */ + short expon; /* Integer part of base 2 log of 'd' */ + short mant; /* Fractional part of base 2 log */ + short dl; /* Log of magnitude of 'd' */ + short dln; /* Step size scale factor normalized log */ + int i; + + /* + * LOG + * + * Compute base 2 log of 'd', and store in 'dl'. + */ + dqm = abs(d); + expon = quan(dqm >> 1, power2, 15); + mant = ((dqm << 7) >> expon) & 0x7F; /* Fractional portion. */ + dl = (expon << 7) + mant; + + /* + * SUBTB + * + * "Divide" by step size multiplier. + */ + dln = dl - (y >> 2); + + /* + * QUAN + * + * Obtain codword i for 'd'. + */ + i = quan(dln, table, size); + if (d < 0) /* take 1's complement of i */ + return ((size << 1) + 1 - i); + else if (i == 0) /* take 1's complement of 0 */ + return ((size << 1) + 1); /* new in 1988 */ + else + return (i); +} +/* + * reconstruct() + * + * Returns reconstructed difference signal 'dq' obtained from + * codeword 'i' and quantization step size scale factor 'y'. + * Multiplication is performed in log base 2 domain as addition. + */ +int +reconstruct( + int sign, /* 0 for non-negative value */ + int dqln, /* G.72x codeword */ + int y) /* Step size multiplier */ +{ + short dql; /* Log of 'dq' magnitude */ + short dex; /* Integer part of log */ + short dqt; + short dq; /* Reconstructed difference signal sample */ + + dql = dqln + (y >> 2); /* ADDA */ + + if (dql < 0) { + return ((sign) ? -0x8000 : 0); + } else { /* ANTILOG */ + dex = (dql >> 7) & 15; + dqt = 128 + (dql & 127); + dq = (dqt << 7) >> (14 - dex); + return ((sign) ? (dq - 0x8000) : dq); + } +} + + +/* + * update() + * + * updates the state variables for each output code + */ +void +update( + int code_size, /* distinguish 723_40 with others */ + int y, /* quantizer step size */ + int wi, /* scale factor multiplier */ + int fi, /* for long/short term energies */ + int dq, /* quantized prediction difference */ + int sr, /* reconstructed signal */ + int dqsez, /* difference from 2-pole predictor */ + G72x_STATE *state_ptr) /* coder state pointer */ +{ + int cnt; + short mag, expon; /* Adaptive predictor, FLOAT A */ + short a2p = 0; /* LIMC */ + short a1ul; /* UPA1 */ + short pks1; /* UPA2 */ + short fa1; + char tr; /* tone/transition detector */ + short ylint, thr2, dqthr; + short ylfrac, thr1; + short pk0; + + pk0 = (dqsez < 0) ? 1 : 0; /* needed in updating predictor poles */ + + mag = dq & 0x7FFF; /* prediction difference magnitude */ + /* TRANS */ + ylint = state_ptr->yl >> 15; /* exponent part of yl */ + ylfrac = (state_ptr->yl >> 10) & 0x1F; /* fractional part of yl */ + thr1 = (32 + ylfrac) << ylint; /* threshold */ + thr2 = (ylint > 9) ? 31 << 10 : thr1; /* limit thr2 to 31 << 10 */ + dqthr = (thr2 + (thr2 >> 1)) >> 1; /* dqthr = 0.75 * thr2 */ + if (state_ptr->td == 0) /* signal supposed voice */ + tr = 0; + else if (mag <= dqthr) /* supposed data, but small mag */ + tr = 0; /* treated as voice */ + else /* signal is data (modem) */ + tr = 1; + + /* + * Quantizer scale factor adaptation. + */ + + /* FUNCTW & FILTD & DELAY */ + /* update non-steady state step size multiplier */ + state_ptr->yu = y + ((wi - y) >> 5); + + /* LIMB */ + if (state_ptr->yu < 544) /* 544 <= yu <= 5120 */ + state_ptr->yu = 544; + else if (state_ptr->yu > 5120) + state_ptr->yu = 5120; + + /* FILTE & DELAY */ + /* update steady state step size multiplier */ + state_ptr->yl += state_ptr->yu + ((-state_ptr->yl) >> 6); + + /* + * Adaptive predictor coefficients. + */ + if (tr == 1) { /* reset a's and b's for modem signal */ + state_ptr->a[0] = 0; + state_ptr->a[1] = 0; + state_ptr->b[0] = 0; + state_ptr->b[1] = 0; + state_ptr->b[2] = 0; + state_ptr->b[3] = 0; + state_ptr->b[4] = 0; + state_ptr->b[5] = 0; + } else { /* update a's and b's */ + pks1 = pk0 ^ state_ptr->pk[0]; /* UPA2 */ + + /* update predictor pole a[1] */ + a2p = state_ptr->a[1] - (state_ptr->a[1] >> 7); + if (dqsez != 0) { + fa1 = (pks1) ? state_ptr->a[0] : -state_ptr->a[0]; + if (fa1 < -8191) /* a2p = function of fa1 */ + a2p -= 0x100; + else if (fa1 > 8191) + a2p += 0xFF; + else + a2p += fa1 >> 5; + + if (pk0 ^ state_ptr->pk[1]) + { /* LIMC */ + if (a2p <= -12160) + a2p = -12288; + else if (a2p >= 12416) + a2p = 12288; + else + a2p -= 0x80; + } + else if (a2p <= -12416) + a2p = -12288; + else if (a2p >= 12160) + a2p = 12288; + else + a2p += 0x80; + } + + /* TRIGB & DELAY */ + state_ptr->a[1] = a2p; + + /* UPA1 */ + /* update predictor pole a[0] */ + state_ptr->a[0] -= state_ptr->a[0] >> 8; + if (dqsez != 0) + { if (pks1 == 0) + state_ptr->a[0] += 192; + else + state_ptr->a[0] -= 192; + } ; + + /* LIMD */ + a1ul = 15360 - a2p; + if (state_ptr->a[0] < -a1ul) + state_ptr->a[0] = -a1ul; + else if (state_ptr->a[0] > a1ul) + state_ptr->a[0] = a1ul; + + /* UPB : update predictor zeros b[6] */ + for (cnt = 0; cnt < 6; cnt++) { + if (code_size == 5) /* for 40Kbps G.723 */ + state_ptr->b[cnt] -= state_ptr->b[cnt] >> 9; + else /* for G.721 and 24Kbps G.723 */ + state_ptr->b[cnt] -= state_ptr->b[cnt] >> 8; + if (dq & 0x7FFF) { /* XOR */ + if ((dq ^ state_ptr->dq[cnt]) >= 0) + state_ptr->b[cnt] += 128; + else + state_ptr->b[cnt] -= 128; + } + } + } + + for (cnt = 5; cnt > 0; cnt--) + state_ptr->dq[cnt] = state_ptr->dq[cnt-1]; + /* FLOAT A : convert dq[0] to 4-bit exp, 6-bit mantissa f.p. */ + if (mag == 0) { + state_ptr->dq[0] = (dq >= 0) ? 0x20 : 0xFC20; + } else { + expon = quan(mag, power2, 15); + state_ptr->dq[0] = (dq >= 0) ? + (expon << 6) + ((mag << 6) >> expon) : + (expon << 6) + ((mag << 6) >> expon) - 0x400; + } + + state_ptr->sr[1] = state_ptr->sr[0]; + /* FLOAT B : convert sr to 4-bit exp., 6-bit mantissa f.p. */ + if (sr == 0) { + state_ptr->sr[0] = 0x20; + } else if (sr > 0) { + expon = quan(sr, power2, 15); + state_ptr->sr[0] = (expon << 6) + ((sr << 6) >> expon); + } else if (sr > -32768) { + mag = -sr; + expon = quan(mag, power2, 15); + state_ptr->sr[0] = (expon << 6) + ((mag << 6) >> expon) - 0x400; + } else + state_ptr->sr[0] = (short) 0xFC20; + + /* DELAY A */ + state_ptr->pk[1] = state_ptr->pk[0]; + state_ptr->pk[0] = pk0; + + /* TONE */ + if (tr == 1) /* this sample has been treated as data */ + state_ptr->td = 0; /* next one will be treated as voice */ + else if (a2p < -11776) /* small sample-to-sample correlation */ + state_ptr->td = 1; /* signal may be data */ + else /* signal is voice */ + state_ptr->td = 0; + + /* + * Adaptation speed control. + */ + state_ptr->dms += (fi - state_ptr->dms) >> 5; /* FILTA */ + state_ptr->dml += (((fi << 2) - state_ptr->dml) >> 7); /* FILTB */ + + if (tr == 1) + state_ptr->ap = 256; + else if (y < 1536) /* SUBTC */ + state_ptr->ap += (0x200 - state_ptr->ap) >> 4; + else if (state_ptr->td == 1) + state_ptr->ap += (0x200 - state_ptr->ap) >> 4; + else if (abs((state_ptr->dms << 2) - state_ptr->dml) >= + (state_ptr->dml >> 3)) + state_ptr->ap += (0x200 - state_ptr->ap) >> 4; + else + state_ptr->ap += (-state_ptr->ap) >> 4; + + return ; +} /* update */ + +/*------------------------------------------------------------------------------ +*/ + +static int +unpack_bytes (int bits, int blocksize, const unsigned char * block, short * samples) +{ unsigned int in_buffer = 0 ; + unsigned char in_byte ; + int k, in_bits = 0, bindex = 0 ; + + for (k = 0 ; bindex <= blocksize && k < G72x_BLOCK_SIZE ; k++) + { if (in_bits < bits) + { in_byte = block [bindex++] ; + + in_buffer |= (in_byte << in_bits); + in_bits += 8; + } + samples [k] = in_buffer & ((1 << bits) - 1); + in_buffer >>= bits; + in_bits -= bits; + } ; + + return k ; +} /* unpack_bytes */ + +static int +pack_bytes (int bits, const short * samples, unsigned char * block) +{ + unsigned int out_buffer = 0 ; + int k, bindex = 0, out_bits = 0 ; + unsigned char out_byte ; + + for (k = 0 ; k < G72x_BLOCK_SIZE ; k++) + { out_buffer |= (samples [k] << out_bits) ; + out_bits += bits ; + if (out_bits >= 8) + { out_byte = out_buffer & 0xFF ; + out_bits -= 8 ; + out_buffer >>= 8 ; + block [bindex++] = out_byte ; + } + } ; + + return bindex ; +} /* pack_bytes */ + diff --git a/src/G72x/g72x.h b/src/G72x/g72x.h new file mode 100644 index 0000000..d7631e6 --- /dev/null +++ b/src/G72x/g72x.h @@ -0,0 +1,91 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** This file is not the same as the original file from Sun Microsystems. Nearly +** all the original definitions and function prototypes that were in the file +** of this name have been moved to g72x_priv.h. +*/ + +#ifndef G72X_HEADER_FILE +#define G72X_HEADER_FILE + +/* +** Number of samples per block to process. +** Must be a common multiple of possible bits per sample : 2, 3, 4, 5 and 8. +*/ +#define G72x_BLOCK_SIZE (3 * 5 * 8) + +/* +** Identifiers for the differing kinds of G72x ADPCM codecs. +** The identifiers also define the number of encoded bits per sample. +*/ + +enum +{ G723_16_BITS_PER_SAMPLE = 2, + G723_24_BITS_PER_SAMPLE = 3, + G723_40_BITS_PER_SAMPLE = 5, + + G721_32_BITS_PER_SAMPLE = 4, + G721_40_BITS_PER_SAMPLE = 5, + + G723_16_SAMPLES_PER_BLOCK = G72x_BLOCK_SIZE, + G723_24_SAMPLES_PER_BLOCK = G723_24_BITS_PER_SAMPLE * (G72x_BLOCK_SIZE / G723_24_BITS_PER_SAMPLE), + G723_40_SAMPLES_PER_BLOCK = G723_40_BITS_PER_SAMPLE * (G72x_BLOCK_SIZE / G723_40_BITS_PER_SAMPLE), + + G721_32_SAMPLES_PER_BLOCK = G72x_BLOCK_SIZE, + G721_40_SAMPLES_PER_BLOCK = G721_40_BITS_PER_SAMPLE * (G72x_BLOCK_SIZE / G721_40_BITS_PER_SAMPLE), + + G723_16_BYTES_PER_BLOCK = (G723_16_BITS_PER_SAMPLE * G72x_BLOCK_SIZE) / 8, + G723_24_BYTES_PER_BLOCK = (G723_24_BITS_PER_SAMPLE * G72x_BLOCK_SIZE) / 8, + G723_40_BYTES_PER_BLOCK = (G723_40_BITS_PER_SAMPLE * G72x_BLOCK_SIZE) / 8, + + G721_32_BYTES_PER_BLOCK = (G721_32_BITS_PER_SAMPLE * G72x_BLOCK_SIZE) / 8, + G721_40_BYTES_PER_BLOCK = (G721_40_BITS_PER_SAMPLE * G72x_BLOCK_SIZE) / 8 +} ; + +/* Forward declaration of of g72x_state. */ + +struct g72x_state ; + +/* External function definitions. */ + +struct g72x_state * g72x_reader_init (int codec, int *blocksize, int *samplesperblock) ; +struct g72x_state * g72x_writer_init (int codec, int *blocksize, int *samplesperblock) ; +/* +** Initialize the ADPCM state table for the given codec. +** Return 0 on success, 1 on fail. +*/ + +int g72x_decode_block (struct g72x_state *pstate, const unsigned char *block, short *samples) ; +/* +** The caller fills data->block with data->bytes bytes before calling the +** function. The value data->bytes must be an integer multiple of +** data->blocksize and be <= data->max_bytes. +** When it returns, the caller can read out data->samples samples. +*/ + +int g72x_encode_block (struct g72x_state *pstate, short *samples, unsigned char *block) ; +/* +** The caller fills state->samples some integer multiple data->samples_per_block +** (up to G72x_BLOCK_SIZE) samples before calling the function. +** When it returns, the caller can read out bytes encoded bytes. +*/ + +#endif /* !G72X_HEADER_FILE */ + diff --git a/src/G72x/g72x_priv.h b/src/G72x/g72x_priv.h new file mode 100644 index 0000000..867c64b --- /dev/null +++ b/src/G72x/g72x_priv.h @@ -0,0 +1,109 @@ +/* + * This source code is a product of Sun Microsystems, Inc. and is provided + * for unrestricted use. Users may copy or modify this source code without + * charge. + * + * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING + * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun source code is provided with no support and without any obligation on + * the part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +#ifndef G72X_PRIVATE_H +#define G72X_PRIVATE_H + +#ifdef __cplusplus +#error "This code is not designed to be compiled with a C++ compiler." +#endif + +/* +** The following is the definition of the state structure used by the +** G.721/G.723 encoder and decoder to preserve their internal state +** between successive calls. The meanings of the majority of the state +** structure fields are explained in detail in the CCITT Recommendation +** G.721. The field names are essentially identical to variable names +** in the bit level description of the coding algorithm included in this +** Recommendation. +*/ + +struct g72x_state +{ long yl; /* Locked or steady state step size multiplier. */ + short yu; /* Unlocked or non-steady state step size multiplier. */ + short dms; /* Short term energy estimate. */ + short dml; /* Long term energy estimate. */ + short ap; /* Linear weighting coefficient of 'yl' and 'yu'. */ + + short a[2]; /* Coefficients of pole portion of prediction filter. */ + short b[6]; /* Coefficients of zero portion of prediction filter. */ + short pk[2]; /* + ** Signs of previous two samples of a partially + ** reconstructed signal. + **/ + short dq[6]; /* + ** Previous 6 samples of the quantized difference + ** signal represented in an internal floating point + ** format. + **/ + short sr[2]; /* + ** Previous 2 samples of the quantized difference + ** signal represented in an internal floating point + ** format. + */ + char td; /* delayed tone detect, new in 1988 version */ + + /* The following struct members were added for libsndfile. The original + ** code worked by calling a set of functions on a sample by sample basis + ** which is slow on architectures like Intel x86. For libsndfile, this + ** was changed so that the encoding and decoding routines could work on + ** a block of samples at a time to reduce the function call overhead. + */ + int (*encoder) (int, struct g72x_state* state) ; + int (*decoder) (int, struct g72x_state* state) ; + + int codec_bits, blocksize, samplesperblock ; +} ; + +typedef struct g72x_state G72x_STATE ; + +int predictor_zero (G72x_STATE *state_ptr); + +int predictor_pole (G72x_STATE *state_ptr); + +int step_size (G72x_STATE *state_ptr); + +int quantize (int d, int y, short *table, int size); + +int reconstruct (int sign, int dqln, int y); + +void update (int code_size, int y, int wi, int fi, int dq, int sr, int dqsez, G72x_STATE *state_ptr); + +int g721_encoder (int sample, G72x_STATE *state_ptr); +int g721_decoder (int code, G72x_STATE *state_ptr); + +int g723_16_encoder (int sample, G72x_STATE *state_ptr); +int g723_16_decoder (int code, G72x_STATE *state_ptr); + +int g723_24_encoder (int sample, G72x_STATE *state_ptr); +int g723_24_decoder (int code, G72x_STATE *state_ptr); + +int g723_40_encoder (int sample, G72x_STATE *state_ptr); +int g723_40_decoder (int code, G72x_STATE *state_ptr); + +void private_init_state (G72x_STATE *state_ptr) ; + +#endif /* G72X_PRIVATE_H */ diff --git a/src/G72x/g72x_test.c b/src/G72x/g72x_test.c new file mode 100644 index 0000000..79cabce --- /dev/null +++ b/src/G72x/g72x_test.c @@ -0,0 +1,214 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License as published by +** the Free Software Foundation; either version 2 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU General Public License for more details. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "g72x.h" +#include "g72x_priv.h" + +#ifndef M_PI +#define M_PI 3.14159265358979323846264338 +#endif + +#define BUFFER_SIZE (1<<14) /* Should be (1<<14) */ +#define SAMPLE_RATE 11025 + + +static void g721_test (void) ; +static void g723_test (double margin) ; + +static void gen_signal_double (double *data, double scale, int datalen) ; +static int error_function (double data, double orig, double margin) ; + +static int oct_save_short (short *a, short *b, int len) ; + +int +main (int argc, char *argv []) +{ int bDoAll = 0 ; + int nTests = 0 ; + + if (argc != 2) + { printf ("Usage : %s <test>\n", argv [0]) ; + printf (" Where <test> is one of the following:\n") ; + printf (" g721 - test G721 encoder and decoder\n") ; + printf (" g723 - test G721 encoder and decoder\n") ; + printf (" all - perform all tests\n") ; + exit (1) ; + } ; + + bDoAll=!strcmp (argv [1], "all"); + + if (bDoAll || ! strcmp (argv [1], "g721")) + { g721_test () ; + nTests++ ; + } ; + + if (bDoAll || ! strcmp (argv [1], "g723")) + { g723_test (0.53) ; + nTests++ ; + } ; + + if (nTests == 0) + { printf ("Mono : ************************************\n") ; + printf ("Mono : * No '%s' test defined.\n", argv [1]) ; + printf ("Mono : ************************************\n") ; + return 1 ; + } ; + + return 0 ; +} /* main */ + +static void +g721_test (void) +{ + return ; +} /* g721_test */ + +static void +g723_test (double margin) +{ static double orig_buffer [BUFFER_SIZE] ; + static short orig [BUFFER_SIZE] ; + static short data [BUFFER_SIZE] ; + + G72x_STATE encoder_state, decoder_state ; + + long k ; + int code, position, max_err ; + + private_init_state (&encoder_state) ; + encoder_state.encoder = g723_24_encoder ; + encoder_state.codec_bits = 3 ; + + private_init_state (&decoder_state) ; + decoder_state.decoder = g723_24_decoder ; + decoder_state.codec_bits = 3 ; + + memset (data, 0, BUFFER_SIZE * sizeof (short)) ; + memset (orig, 0, BUFFER_SIZE * sizeof (short)) ; + + printf (" g723_test : ") ; + fflush (stdout) ; + + gen_signal_double (orig_buffer, 32000.0, BUFFER_SIZE) ; + for (k = 0 ; k < BUFFER_SIZE ; k++) + orig [k] = (short) orig_buffer [k] ; + + /* Write and read data here. */ + position = 0 ; + max_err = 0 ; + for (k = 0 ; k < BUFFER_SIZE ; k++) + { code = encoder_state.encoder (orig [k], &encoder_state) ; + data [k] = decoder_state.decoder (code, &decoder_state) ; + if (abs (orig [k] - data [k]) > max_err) + { position = k ; + max_err = abs (orig [k] - data [k]) ; + } ; + } ; + + printf ("\n\nMax error of %d at postion %d.\n", max_err, position) ; + + for (k = 0 ; k < BUFFER_SIZE ; k++) + { if (error_function (data [k], orig [k], margin)) + { printf ("Line %d: Incorrect sample A (#%ld : %d should be %d).\n", __LINE__, k, data [k], orig [k]) ; + oct_save_short (orig, data, BUFFER_SIZE) ; + exit (1) ; + } ; + } ; + + + printf ("ok\n") ; + + return ; +} /* g723_test */ + + +#define SIGNAL_MAXVAL 30000.0 +#define DECAY_COUNT 1000 + +static void +gen_signal_double (double *gendata, double scale, int gendatalen) +{ int k, ramplen ; + double amp = 0.0 ; + + ramplen = DECAY_COUNT ; + + for (k = 0 ; k < gendatalen ; k++) + { if (k <= ramplen) + amp = scale * k / ((double) ramplen) ; + else if (k > gendatalen - ramplen) + amp = scale * (gendatalen - k) / ((double) ramplen) ; + + gendata [k] = amp * (0.4 * sin (33.3 * 2.0 * M_PI * ((double) (k+1)) / ((double) SAMPLE_RATE)) + + 0.3 * cos (201.1 * 2.0 * M_PI * ((double) (k+1)) / ((double) SAMPLE_RATE))) ; + } ; + + return ; +} /* gen_signal_double */ + +static int +error_function (double data, double orig, double margin) +{ double error ; + + if (fabs (orig) <= 500.0) + error = fabs (fabs (data) - fabs(orig)) / 2000.0 ; + else if (fabs (orig) <= 1000.0) + error = fabs (data - orig) / 3000.0 ; + else + error = fabs (data - orig) / fabs (orig) ; + + if (error > margin) + { printf ("\n\n*******************\nError : %f\n", error) ; + return 1 ; + } ; + return 0 ; +} /* error_function */ + +static int +oct_save_short (short *a, short *b, int len) +{ FILE *file ; + int k ; + + if (! (file = fopen ("error.dat", "w"))) + return 1 ; + + fprintf (file, "# Not created by Octave\n") ; + + fprintf (file, "# name: a\n") ; + fprintf (file, "# type: matrix\n") ; + fprintf (file, "# rows: %d\n", len) ; + fprintf (file, "# columns: 1\n") ; + + for (k = 0 ; k < len ; k++) + fprintf (file, "% d\n", a [k]) ; + + fprintf (file, "# name: b\n") ; + fprintf (file, "# type: matrix\n") ; + fprintf (file, "# rows: %d\n", len) ; + fprintf (file, "# columns: 1\n") ; + + for (k = 0 ; k < len ; k++) + fprintf (file, "% d\n", b [k]) ; + + fclose (file) ; + return 0 ; +} /* oct_save_short */ + diff --git a/src/GSM610/COPYRIGHT b/src/GSM610/COPYRIGHT new file mode 100644 index 0000000..eba0e52 --- /dev/null +++ b/src/GSM610/COPYRIGHT @@ -0,0 +1,16 @@ +Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann, +Technische Universitaet Berlin + +Any use of this software is permitted provided that this notice is not +removed and that neither the authors nor the Technische Universitaet Berlin +are deemed to have made any representations as to the suitability of this +software for any purpose nor are held responsible for any defects of +this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + +As a matter of courtesy, the authors request to be informed about uses +this software has found, about bugs in this software, and about any +improvements that may be of general interest. + +Berlin, 28.11.1994 +Jutta Degener +Carsten Bormann diff --git a/src/GSM610/ChangeLog b/src/GSM610/ChangeLog new file mode 100644 index 0000000..24f5248 --- /dev/null +++ b/src/GSM610/ChangeLog @@ -0,0 +1,56 @@ +2004-05-12 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * gsm610_priv.h + Replace ugly macros with inline functions. + + * *.c + Remove temporary variables used by macros and other minor fixes required by + above change. + +2003-06-02 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * rpe.c + Renamed variables "exp" to "expon" to avoid shadowed parameter warnigns. + +2002-06-08 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * long_term.c + Changes tp removed compiler warnings about shadowed parameters. + +2002-06-08 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * private.h + Made declarations of gsm_A, gsm_B, gsm_MIC etc extern. This fixed a compile + problem on MacOSX. + +2002-05-10 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * *.[ch] + Removed all pre-ANSI prototype kludges. Removed proto.h and unproto.h. + Started work on making GSM 6.10 files seekable. Currently they are not. + + * code.c private.h + Function Gsm_Coder () used a statically defined array. This was obviously + not re-entrant so moved it to struct gsm_state. + +2001-09-16 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * code.c + Added #includes for string.h and stdlib.h. + +2000-10-27 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * config.h + Removed some commented out #defines (ie //*efine) which were causing problems on + the Sun cc compiler. + +2000-02-29 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * private.h + Added #defines to emulate normal compile time options. + +2000-02-28 Erik de Castro Lopo <erikd AT mega-nerd DOT com> + + * everthing + Created this directory and copied files from libgsm. + http://kbs.cs.tu-berlin.de/~jutta/toast.html diff --git a/src/GSM610/README b/src/GSM610/README new file mode 100644 index 0000000..b57132b --- /dev/null +++ b/src/GSM610/README @@ -0,0 +1,36 @@ +GSM 06.10 13 kbit/s RPE/LTP speech codec +---------------------------------------- + +All the file in this directory were written by Jutta Degener +and Carsten Borman for The Communications and Operating Systems +Research Group (KBS) at the Technische Universitaet Berlin. + +Their work was released under the following license which is +assumed to be compatible with The GNU Lesser General Public License. + +---------------------------------------------------------------------------- + +Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann, +Technische Universitaet Berlin + +Any use of this software is permitted provided that this notice is not +removed and that neither the authors nor the Technische Universitaet Berlin +are deemed to have made any representations as to the suitability of this +software for any purpose nor are held responsible for any defects of +this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + +As a matter of courtesy, the authors request to be informed about uses +this software has found, about bugs in this software, and about any +improvements that may be of general interest. + +Berlin, 28.11.1994 +Jutta Degener (jutta@cs.tu-berlin.de) +Carsten Bormann (cabo@cs.tu-berlin.de) + +---------------------------------------------------------------------------- + +Jutta Degener and Carsten Bormann's work can be found on their homepage +at: + + http://kbs.cs.tu-berlin.de/~jutta/toast.html + diff --git a/src/GSM610/add.c b/src/GSM610/add.c new file mode 100644 index 0000000..6f4eb5c --- /dev/null +++ b/src/GSM610/add.c @@ -0,0 +1,240 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +/* + * See private.h for the more commonly used macro versions. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +#define saturate(x) \ + ((x) < MIN_WORD ? MIN_WORD : (x) > MAX_WORD ? MAX_WORD: (x)) + +word gsm_add ( word a, word b) +{ + longword sum = (longword)a + (longword)b; + return saturate(sum); +} + +word gsm_sub ( word a, word b) +{ + longword diff = (longword)a - (longword)b; + return saturate(diff); +} + +word gsm_mult ( word a, word b) +{ + if (a == MIN_WORD && b == MIN_WORD) + return MAX_WORD; + + return SASR_L( (longword)a * (longword)b, 15 ); +} + +word gsm_mult_r ( word a, word b) +{ + if (b == MIN_WORD && a == MIN_WORD) return MAX_WORD; + else { + longword prod = (longword)a * (longword)b + 16384; + prod >>= 15; + return prod & 0xFFFF; + } +} + +word gsm_abs (word a) +{ + return a < 0 ? (a == MIN_WORD ? MAX_WORD : -a) : a; +} + +longword gsm_L_mult (word a, word b) +{ + assert( a != MIN_WORD || b != MIN_WORD ); + return ((longword)a * (longword)b) << 1; +} + +longword gsm_L_add ( longword a, longword b) +{ + if (a < 0) { + if (b >= 0) return a + b; + else { + ulongword A = (ulongword)-(a + 1) + (ulongword)-(b + 1); + return A >= MAX_LONGWORD ? MIN_LONGWORD :-(longword)A-2; + } + } + else if (b <= 0) return a + b; + else { + ulongword A = (ulongword)a + (ulongword)b; + return A > MAX_LONGWORD ? MAX_LONGWORD : A; + } +} + +longword gsm_L_sub ( longword a, longword b) +{ + if (a >= 0) { + if (b >= 0) return a - b; + else { + /* a>=0, b<0 */ + + ulongword A = (ulongword)a + -(b + 1); + return A >= MAX_LONGWORD ? MAX_LONGWORD : (A + 1); + } + } + else if (b <= 0) return a - b; + else { + /* a<0, b>0 */ + + ulongword A = (ulongword)-(a + 1) + b; + return A >= MAX_LONGWORD ? MIN_LONGWORD : -(longword)A - 1; + } +} + +static unsigned char const bitoff[ 256 ] = { + 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +word gsm_norm (longword a ) +/* + * the number of left shifts needed to normalize the 32 bit + * variable L_var1 for positive values on the interval + * + * with minimum of + * minimum of 1073741824 (01000000000000000000000000000000) and + * maximum of 2147483647 (01111111111111111111111111111111) + * + * + * and for negative values on the interval with + * minimum of -2147483648 (-10000000000000000000000000000000) and + * maximum of -1073741824 ( -1000000000000000000000000000000). + * + * in order to normalize the result, the following + * operation must be done: L_norm_var1 = L_var1 << norm( L_var1 ); + * + * (That's 'ffs', only from the left, not the right..) + */ +{ + assert(a != 0); + + if (a < 0) { + if (a <= -1073741824) return 0; + a = ~a; + } + + return a & 0xffff0000 + ? ( a & 0xff000000 + ? -1 + bitoff[ 0xFF & (a >> 24) ] + : 7 + bitoff[ 0xFF & (a >> 16) ] ) + : ( a & 0xff00 + ? 15 + bitoff[ 0xFF & (a >> 8) ] + : 23 + bitoff[ 0xFF & a ] ); +} + +longword gsm_L_asl (longword a, int n) +{ + if (n >= 32) return 0; + if (n <= -32) return -(a < 0); + if (n < 0) return gsm_L_asr(a, -n); + return a << n; +} + +word gsm_asr (word a, int n) +{ + if (n >= 16) return -(a < 0); + if (n <= -16) return 0; + if (n < 0) return a << -n; + + return SASR_W (a, (word) n); +} + +word gsm_asl (word a, int n) +{ + if (n >= 16) return 0; + if (n <= -16) return -(a < 0); + if (n < 0) return gsm_asr(a, -n); + return a << n; +} + +longword gsm_L_asr (longword a, int n) +{ + if (n >= 32) return -(a < 0); + if (n <= -32) return 0; + if (n < 0) return a << -n; + + return SASR_L (a, (word) n); +} + +/* +** word gsm_asr (word a, int n) +** { +** if (n >= 16) return -(a < 0); +** if (n <= -16) return 0; +** if (n < 0) return a << -n; +** +** # ifdef SASR_W +** return a >> n; +** # else +** if (a >= 0) return a >> n; +** else return -(word)( -(uword)a >> n ); +** # endif +** } +** +*/ +/* + * (From p. 46, end of section 4.2.5) + * + * NOTE: The following lines gives [sic] one correct implementation + * of the div(num, denum) arithmetic operation. Compute div + * which is the integer division of num by denum: with denum + * >= num > 0 + */ + +word gsm_div (word num, word denum) +{ + longword L_num = num; + longword L_denum = denum; + word div = 0; + int k = 15; + + /* The parameter num sometimes becomes zero. + * Although this is explicitly guarded against in 4.2.5, + * we assume that the result should then be zero as well. + */ + + /* assert(num != 0); */ + + assert(num >= 0 && denum >= num); + if (num == 0) + return 0; + + while (k--) { + div <<= 1; + L_num <<= 1; + + if (L_num >= L_denum) { + L_num -= L_denum; + div++; + } + } + + return div; +} + diff --git a/src/GSM610/code.c b/src/GSM610/code.c new file mode 100644 index 0000000..78cb853 --- /dev/null +++ b/src/GSM610/code.c @@ -0,0 +1,87 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + + +#include <stdlib.h> +#include <string.h> + +#include "gsm610_priv.h" + +/* + * 4.2 FIXED POINT IMPLEMENTATION OF THE RPE-LTP CODER + */ + +void Gsm_Coder ( + + struct gsm_state * State, + + word * s, /* [0..159] samples IN */ + +/* + * The RPE-LTD coder works on a frame by frame basis. The length of + * the frame is equal to 160 samples. Some computations are done + * once per frame to produce at the output of the coder the + * LARc[1..8] parameters which are the coded LAR coefficients and + * also to realize the inverse filtering operation for the entire + * frame (160 samples of signal d[0..159]). These parts produce at + * the output of the coder: + */ + + word * LARc, /* [0..7] LAR coefficients OUT */ + +/* + * Procedure 4.2.11 to 4.2.18 are to be executed four times per + * frame. That means once for each sub-segment RPE-LTP analysis of + * 40 samples. These parts produce at the output of the coder: + */ + + word * Nc, /* [0..3] LTP lag OUT */ + word * bc, /* [0..3] coded LTP gain OUT */ + word * Mc, /* [0..3] RPE grid selection OUT */ + word * xmaxc,/* [0..3] Coded maximum amplitude OUT */ + word * xMc /* [13*4] normalized RPE samples OUT */ +) +{ + int k; + word * dp = State->dp0 + 120; /* [ -120...-1 ] */ + word * dpp = dp; /* [ 0...39 ] */ + + word so[160]; + + Gsm_Preprocess (State, s, so); + Gsm_LPC_Analysis (State, so, LARc); + Gsm_Short_Term_Analysis_Filter (State, LARc, so); + + for (k = 0; k <= 3; k++, xMc += 13) { + + Gsm_Long_Term_Predictor ( State, + so+k*40, /* d [0..39] IN */ + dp, /* dp [-120..-1] IN */ + State->e + 5, /* e [0..39] OUT */ + dpp, /* dpp [0..39] OUT */ + Nc++, + bc++); + + Gsm_RPE_Encoding ( /*-S,-*/ + State->e + 5, /* e ][0..39][ IN/OUT */ + xmaxc++, Mc++, xMc ); + /* + * Gsm_Update_of_reconstructed_short_time_residual_signal + * ( dpp, State->e + 5, dp ); + */ + + { register int i; + for (i = 0; i <= 39; i++) + dp[ i ] = GSM_ADD( State->e[5 + i], dpp[i] ); + } + dp += 40; + dpp += 40; + + } + (void)memcpy( (char *)State->dp0, (char *)(State->dp0 + 160), + 120 * sizeof(*State->dp0) ); +} + diff --git a/src/GSM610/config.h b/src/GSM610/config.h new file mode 100644 index 0000000..f3eeb82 --- /dev/null +++ b/src/GSM610/config.h @@ -0,0 +1,26 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#ifndef CONFIG_H +#define CONFIG_H + +#define HAS_STDLIB_H 1 /* /usr/include/stdlib.h */ +#define HAS_FCNTL_H 1 /* /usr/include/fcntl.h */ + +#define HAS_FSTAT 1 /* fstat syscall */ +#define HAS_FCHMOD 1 /* fchmod syscall */ +#define HAS_CHMOD 1 /* chmod syscall */ +#define HAS_FCHOWN 1 /* fchown syscall */ +#define HAS_CHOWN 1 /* chown syscall */ + +#define HAS_STRING_H 1 /* /usr/include/string.h */ + +#define HAS_UNISTD_H 1 /* /usr/include/unistd.h */ +#define HAS_UTIME 1 /* POSIX utime(path, times) */ +#define HAS_UTIME_H 1 /* UTIME header file */ + +#endif /* CONFIG_H */ + diff --git a/src/GSM610/decode.c b/src/GSM610/decode.c new file mode 100644 index 0000000..350df12 --- /dev/null +++ b/src/GSM610/decode.c @@ -0,0 +1,59 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> + +#include "gsm610_priv.h" + +/* + * 4.3 FIXED POINT IMPLEMENTATION OF THE RPE-LTP DECODER + */ + +static void Postprocessing ( + struct gsm_state * S, + register word * s) +{ + register int k; + register word msr = S->msr; + register word tmp; + + for (k = 160; k--; s++) { + tmp = GSM_MULT_R( msr, 28180 ); + msr = GSM_ADD(*s, tmp); /* Deemphasis */ + *s = GSM_ADD(msr, msr) & 0xFFF8; /* Truncation & Upscaling */ + } + S->msr = msr; +} + +void Gsm_Decoder ( + struct gsm_state * S, + + word * LARcr, /* [0..7] IN */ + + word * Ncr, /* [0..3] IN */ + word * bcr, /* [0..3] IN */ + word * Mcr, /* [0..3] IN */ + word * xmaxcr, /* [0..3] IN */ + word * xMcr, /* [0..13*4] IN */ + + word * s) /* [0..159] OUT */ +{ + int j, k; + word erp[40], wt[160]; + word * drp = S->dp0 + 120; + + for (j=0; j <= 3; j++, xmaxcr++, bcr++, Ncr++, Mcr++, xMcr += 13) { + + Gsm_RPE_Decoding( /*-S,-*/ *xmaxcr, *Mcr, xMcr, erp ); + Gsm_Long_Term_Synthesis_Filtering( S, *Ncr, *bcr, erp, drp ); + + for (k = 0; k <= 39; k++) wt[ j * 40 + k ] = drp[ k ]; + } + + Gsm_Short_Term_Synthesis_Filter( S, LARcr, wt, s ); + Postprocessing(S, s); +} + diff --git a/src/GSM610/gsm.h b/src/GSM610/gsm.h new file mode 100644 index 0000000..48aecc7 --- /dev/null +++ b/src/GSM610/gsm.h @@ -0,0 +1,52 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#ifndef GSM_H +#define GSM_H + +#include <stdio.h> /* for FILE * */ + +/* + * Interface + */ + +typedef struct gsm_state * gsm; +typedef short gsm_signal; /* signed 16 bit */ +typedef unsigned char gsm_byte; +typedef gsm_byte gsm_frame[33]; /* 33 * 8 bits */ + +#define GSM_MAGIC 0xD /* 13 kbit/s RPE-LTP */ + +#define GSM_PATCHLEVEL 10 +#define GSM_MINOR 0 +#define GSM_MAJOR 1 + +#define GSM_OPT_VERBOSE 1 +#define GSM_OPT_FAST 2 +#define GSM_OPT_LTP_CUT 3 +#define GSM_OPT_WAV49 4 +#define GSM_OPT_FRAME_INDEX 5 +#define GSM_OPT_FRAME_CHAIN 6 + +gsm gsm_create (void); + +/* Added for libsndfile : May 6, 2002 */ +void gsm_init (gsm); + +void gsm_destroy (gsm); + +int gsm_print (FILE *, gsm, gsm_byte *); +int gsm_option (gsm, int, int *); + +void gsm_encode (gsm, gsm_signal *, gsm_byte *); +int gsm_decode (gsm, gsm_byte *, gsm_signal *); + +int gsm_explode (gsm, gsm_byte *, gsm_signal *); +void gsm_implode (gsm, gsm_signal *, gsm_byte *); + +#endif /* GSM_H */ + + diff --git a/src/GSM610/gsm610_priv.h b/src/GSM610/gsm610_priv.h new file mode 100644 index 0000000..e121c1c --- /dev/null +++ b/src/GSM610/gsm610_priv.h @@ -0,0 +1,301 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#ifndef PRIVATE_H +#define PRIVATE_H + +/* Added by Erik de Castro Lopo */ +#define USE_FLOAT_MUL +#define FAST +#define WAV49 + +#ifdef __cplusplus +#error "This code is not designed to be compiled with a C++ compiler." +#endif +/* Added by Erik de Castro Lopo */ + + + +typedef short word; /* 16 bit signed int */ +typedef int longword; /* 32 bit signed int */ + +typedef unsigned short uword; /* unsigned word */ +typedef unsigned int ulongword; /* unsigned longword */ + +struct gsm_state +{ word dp0[ 280 ] ; + + word z1; /* preprocessing.c, Offset_com. */ + longword L_z2; /* Offset_com. */ + int mp; /* Preemphasis */ + + word u[8] ; /* short_term_aly_filter.c */ + word LARpp[2][8] ; /* */ + word j; /* */ + + word ltp_cut; /* long_term.c, LTP crosscorr. */ + word nrp; /* 40 */ /* long_term.c, synthesis */ + word v[9] ; /* short_term.c, synthesis */ + word msr; /* decoder.c, Postprocessing */ + + char verbose; /* only used if !NDEBUG */ + char fast; /* only used if FAST */ + + char wav_fmt; /* only used if WAV49 defined */ + unsigned char frame_index; /* odd/even chaining */ + unsigned char frame_chain; /* half-byte to carry forward */ + + /* Moved here from code.c where it was defined as static */ + word e[50] ; +} ; + +typedef struct gsm_state GSM_STATE ; + +#define MIN_WORD (-32767 - 1) +#define MAX_WORD 32767 + +#define MIN_LONGWORD (-2147483647 - 1) +#define MAX_LONGWORD 2147483647 + +/* Signed arithmetic shift right. */ +static inline word +SASR_W (word x, word by) +{ return (x >> by) ; +} /* SASR */ + +static inline longword +SASR_L (longword x, word by) +{ return (x >> by) ; +} /* SASR */ + +/* + * Prototypes from add.c + */ +word gsm_mult (word a, word b) ; +longword gsm_L_mult (word a, word b) ; +word gsm_mult_r (word a, word b) ; + +word gsm_div (word num, word denum) ; + +word gsm_add (word a, word b ) ; +longword gsm_L_add (longword a, longword b ) ; + +word gsm_sub (word a, word b) ; +longword gsm_L_sub (longword a, longword b) ; + +word gsm_abs (word a) ; + +word gsm_norm (longword a ) ; + +longword gsm_L_asl (longword a, int n) ; +word gsm_asl (word a, int n) ; + +longword gsm_L_asr (longword a, int n) ; +word gsm_asr (word a, int n) ; + +/* + * Inlined functions from add.h + */ + +static inline longword +GSM_MULT_R (word a, word b) +{ return (((longword) (a)) * ((longword) (b)) + 16384) >> 15 ; +} /* GSM_MULT_R */ + +static inline longword +GSM_MULT (word a, word b) +{ return (((longword) (a)) * ((longword) (b))) >> 15 ; +} /* GSM_MULT */ + +static inline longword +GSM_L_MULT (word a, word b) +{ return ((longword) (a)) * ((longword) (b)) << 1 ; +} /* GSM_L_MULT */ + +static inline longword +GSM_L_ADD (longword a, longword b) +{ ulongword utmp ; + + if (a < 0 && b < 0) + { utmp = (ulongword)-((a) + 1) + (ulongword)-((b) + 1) ; + return (utmp >= (ulongword) MAX_LONGWORD) ? MIN_LONGWORD : -(longword)utmp-2 ; + } ; + + if (a > 0 && b > 0) + { utmp = (ulongword) a + (ulongword) b ; + return (utmp >= (ulongword) MAX_LONGWORD) ? MAX_LONGWORD : utmp ; + } ; + + return a + b ; +} /* GSM_L_ADD */ + +static inline longword +GSM_ADD (word a, word b) +{ longword ltmp ; + + ltmp = ((longword) a) + ((longword) b) ; + + if (ltmp >= MAX_WORD) + return MAX_WORD ; + if (ltmp <= MIN_WORD) + return MIN_WORD ; + + return ltmp ; +} /* GSM_ADD */ + +static inline longword +GSM_SUB (word a, word b) +{ longword ltmp ; + + ltmp = ((longword) a) - ((longword) b) ; + + if (ltmp >= MAX_WORD) + ltmp = MAX_WORD ; + else if (ltmp <= MIN_WORD) + ltmp = MIN_WORD ; + + return ltmp ; +} /* GSM_SUB */ + +static inline word +GSM_ABS (word a) +{ + if (a > 0) + return a ; + if (a == MIN_WORD) + return MAX_WORD ; + return -a ; +} /* GSM_ADD */ + + +/* + * More prototypes from implementations.. + */ +void Gsm_Coder ( + struct gsm_state * S, + word * s, /* [0..159] samples IN */ + word * LARc, /* [0..7] LAR coefficients OUT */ + word * Nc, /* [0..3] LTP lag OUT */ + word * bc, /* [0..3] coded LTP gain OUT */ + word * Mc, /* [0..3] RPE grid selection OUT */ + word * xmaxc,/* [0..3] Coded maximum amplitude OUT */ + word * xMc) ;/* [13*4] normalized RPE samples OUT */ + +void Gsm_Long_Term_Predictor ( /* 4x for 160 samples */ + struct gsm_state * S, + word * d, /* [0..39] residual signal IN */ + word * dp, /* [-120..-1] d' IN */ + word * e, /* [0..40] OUT */ + word * dpp, /* [0..40] OUT */ + word * Nc, /* correlation lag OUT */ + word * bc) ; /* gain factor OUT */ + +void Gsm_LPC_Analysis ( + struct gsm_state * S, + word * s, /* 0..159 signals IN/OUT */ + word * LARc) ; /* 0..7 LARc's OUT */ + +void Gsm_Preprocess ( + struct gsm_state * S, + word * s, word * so) ; + +void Gsm_Encoding ( + struct gsm_state * S, + word * e, + word * ep, + word * xmaxc, + word * Mc, + word * xMc) ; + +void Gsm_Short_Term_Analysis_Filter ( + struct gsm_state * S, + word * LARc, /* coded log area ratio [0..7] IN */ + word * d) ; /* st res. signal [0..159] IN/OUT */ + +void Gsm_Decoder ( + struct gsm_state * S, + word * LARcr, /* [0..7] IN */ + word * Ncr, /* [0..3] IN */ + word * bcr, /* [0..3] IN */ + word * Mcr, /* [0..3] IN */ + word * xmaxcr, /* [0..3] IN */ + word * xMcr, /* [0..13*4] IN */ + word * s) ; /* [0..159] OUT */ + +void Gsm_Decoding ( + struct gsm_state * S, + word xmaxcr, + word Mcr, + word * xMcr, /* [0..12] IN */ + word * erp) ; /* [0..39] OUT */ + +void Gsm_Long_Term_Synthesis_Filtering ( + struct gsm_state* S, + word Ncr, + word bcr, + word * erp, /* [0..39] IN */ + word * drp) ; /* [-120..-1] IN, [0..40] OUT */ + +void Gsm_RPE_Decoding ( + /*-struct gsm_state *S,-*/ + word xmaxcr, + word Mcr, + word * xMcr, /* [0..12], 3 bits IN */ + word * erp) ; /* [0..39] OUT */ + +void Gsm_RPE_Encoding ( + /*-struct gsm_state * S,-*/ + word * e, /* -5..-1][0..39][40..44 IN/OUT */ + word * xmaxc, /* OUT */ + word * Mc, /* OUT */ + word * xMc) ; /* [0..12] OUT */ + +void Gsm_Short_Term_Synthesis_Filter ( + struct gsm_state * S, + word * LARcr, /* log area ratios [0..7] IN */ + word * drp, /* received d [0...39] IN */ + word * s) ; /* signal s [0..159] OUT */ + +void Gsm_Update_of_reconstructed_short_time_residual_signal ( + word * dpp, /* [0...39] IN */ + word * ep, /* [0...39] IN */ + word * dp) ; /* [-120...-1] IN/OUT */ + +/* + * Tables from table.c + */ +#ifndef GSM_TABLE_C + +extern word gsm_A [8], gsm_B [8], gsm_MIC [8], gsm_MAC [8] ; +extern word gsm_INVA [8] ; +extern word gsm_DLB [4], gsm_QLB [4] ; +extern word gsm_H [11] ; +extern word gsm_NRFAC [8] ; +extern word gsm_FAC [8] ; + +#endif /* GSM_TABLE_C */ + +/* + * Debugging + */ +#ifdef NDEBUG + +# define gsm_debug_words(a, b, c, d) /* nil */ +# define gsm_debug_longwords(a, b, c, d) /* nil */ +# define gsm_debug_word(a, b) /* nil */ +# define gsm_debug_longword(a, b) /* nil */ + +#else /* !NDEBUG => DEBUG */ + + void gsm_debug_words (char * name, int, int, word *) ; + void gsm_debug_longwords (char * name, int, int, longword *) ; + void gsm_debug_longword (char * name, longword) ; + void gsm_debug_word (char * name, word) ; + +#endif /* !NDEBUG */ + +#endif /* PRIVATE_H */ + diff --git a/src/GSM610/gsm_create.c b/src/GSM610/gsm_create.c new file mode 100644 index 0000000..2bb4307 --- /dev/null +++ b/src/GSM610/gsm_create.c @@ -0,0 +1,37 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include "config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + + + +#include "gsm.h" +#include "gsm610_priv.h" + +gsm gsm_create (void) +{ + gsm r; + + r = malloc (sizeof(struct gsm_state)); + if (!r) return r; + + memset((char *)r, 0, sizeof (struct gsm_state)); + r->nrp = 40; + + return r; +} + +/* Added for libsndfile : May 6, 2002. Not sure if it works. */ +void gsm_init (gsm state) +{ + memset (state, 0, sizeof (struct gsm_state)) ; + state->nrp = 40 ; +} + diff --git a/src/GSM610/gsm_decode.c b/src/GSM610/gsm_decode.c new file mode 100644 index 0000000..b13308a --- /dev/null +++ b/src/GSM610/gsm_decode.c @@ -0,0 +1,359 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include "gsm610_priv.h" + +#include "gsm.h" + +int gsm_decode (gsm s, gsm_byte * c, gsm_signal * target) +{ + word LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4], xmc[13*4]; + +#ifdef WAV49 + if (s->wav_fmt) { + + uword sr = 0; + + s->frame_index = !s->frame_index; + if (s->frame_index) { + + sr = *c++; + LARc[0] = sr & 0x3f; sr >>= 6; + sr |= (uword)*c++ << 2; + LARc[1] = sr & 0x3f; sr >>= 6; + sr |= (uword)*c++ << 4; + LARc[2] = sr & 0x1f; sr >>= 5; + LARc[3] = sr & 0x1f; sr >>= 5; + sr |= (uword)*c++ << 2; + LARc[4] = sr & 0xf; sr >>= 4; + LARc[5] = sr & 0xf; sr >>= 4; + sr |= (uword)*c++ << 2; /* 5 */ + LARc[6] = sr & 0x7; sr >>= 3; + LARc[7] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 4; + Nc[0] = sr & 0x7f; sr >>= 7; + bc[0] = sr & 0x3; sr >>= 2; + Mc[0] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 1; + xmaxc[0] = sr & 0x3f; sr >>= 6; + xmc[0] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[1] = sr & 0x7; sr >>= 3; + xmc[2] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[3] = sr & 0x7; sr >>= 3; + xmc[4] = sr & 0x7; sr >>= 3; + xmc[5] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; /* 10 */ + xmc[6] = sr & 0x7; sr >>= 3; + xmc[7] = sr & 0x7; sr >>= 3; + xmc[8] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[9] = sr & 0x7; sr >>= 3; + xmc[10] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[11] = sr & 0x7; sr >>= 3; + xmc[12] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 4; + Nc[1] = sr & 0x7f; sr >>= 7; + bc[1] = sr & 0x3; sr >>= 2; + Mc[1] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 1; + xmaxc[1] = sr & 0x3f; sr >>= 6; + xmc[13] = sr & 0x7; sr >>= 3; + sr = *c++; /* 15 */ + xmc[14] = sr & 0x7; sr >>= 3; + xmc[15] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[16] = sr & 0x7; sr >>= 3; + xmc[17] = sr & 0x7; sr >>= 3; + xmc[18] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[19] = sr & 0x7; sr >>= 3; + xmc[20] = sr & 0x7; sr >>= 3; + xmc[21] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[22] = sr & 0x7; sr >>= 3; + xmc[23] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[24] = sr & 0x7; sr >>= 3; + xmc[25] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 4; /* 20 */ + Nc[2] = sr & 0x7f; sr >>= 7; + bc[2] = sr & 0x3; sr >>= 2; + Mc[2] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 1; + xmaxc[2] = sr & 0x3f; sr >>= 6; + xmc[26] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[27] = sr & 0x7; sr >>= 3; + xmc[28] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[29] = sr & 0x7; sr >>= 3; + xmc[30] = sr & 0x7; sr >>= 3; + xmc[31] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[32] = sr & 0x7; sr >>= 3; + xmc[33] = sr & 0x7; sr >>= 3; + xmc[34] = sr & 0x7; sr >>= 3; + sr = *c++; /* 25 */ + xmc[35] = sr & 0x7; sr >>= 3; + xmc[36] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[37] = sr & 0x7; sr >>= 3; + xmc[38] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 4; + Nc[3] = sr & 0x7f; sr >>= 7; + bc[3] = sr & 0x3; sr >>= 2; + Mc[3] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 1; + xmaxc[3] = sr & 0x3f; sr >>= 6; + xmc[39] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[40] = sr & 0x7; sr >>= 3; + xmc[41] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; /* 30 */ + xmc[42] = sr & 0x7; sr >>= 3; + xmc[43] = sr & 0x7; sr >>= 3; + xmc[44] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[45] = sr & 0x7; sr >>= 3; + xmc[46] = sr & 0x7; sr >>= 3; + xmc[47] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[48] = sr & 0x7; sr >>= 3; + xmc[49] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[50] = sr & 0x7; sr >>= 3; + xmc[51] = sr & 0x7; sr >>= 3; + + s->frame_chain = sr & 0xf; + } + else { + sr = s->frame_chain; + sr |= (uword)*c++ << 4; /* 1 */ + LARc[0] = sr & 0x3f; sr >>= 6; + LARc[1] = sr & 0x3f; sr >>= 6; + sr = *c++; + LARc[2] = sr & 0x1f; sr >>= 5; + sr |= (uword)*c++ << 3; + LARc[3] = sr & 0x1f; sr >>= 5; + LARc[4] = sr & 0xf; sr >>= 4; + sr |= (uword)*c++ << 2; + LARc[5] = sr & 0xf; sr >>= 4; + LARc[6] = sr & 0x7; sr >>= 3; + LARc[7] = sr & 0x7; sr >>= 3; + sr = *c++; /* 5 */ + Nc[0] = sr & 0x7f; sr >>= 7; + sr |= (uword)*c++ << 1; + bc[0] = sr & 0x3; sr >>= 2; + Mc[0] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 5; + xmaxc[0] = sr & 0x3f; sr >>= 6; + xmc[0] = sr & 0x7; sr >>= 3; + xmc[1] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[2] = sr & 0x7; sr >>= 3; + xmc[3] = sr & 0x7; sr >>= 3; + xmc[4] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[5] = sr & 0x7; sr >>= 3; + xmc[6] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; /* 10 */ + xmc[7] = sr & 0x7; sr >>= 3; + xmc[8] = sr & 0x7; sr >>= 3; + xmc[9] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[10] = sr & 0x7; sr >>= 3; + xmc[11] = sr & 0x7; sr >>= 3; + xmc[12] = sr & 0x7; sr >>= 3; + sr = *c++; + Nc[1] = sr & 0x7f; sr >>= 7; + sr |= (uword)*c++ << 1; + bc[1] = sr & 0x3; sr >>= 2; + Mc[1] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 5; + xmaxc[1] = sr & 0x3f; sr >>= 6; + xmc[13] = sr & 0x7; sr >>= 3; + xmc[14] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; /* 15 */ + xmc[15] = sr & 0x7; sr >>= 3; + xmc[16] = sr & 0x7; sr >>= 3; + xmc[17] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[18] = sr & 0x7; sr >>= 3; + xmc[19] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[20] = sr & 0x7; sr >>= 3; + xmc[21] = sr & 0x7; sr >>= 3; + xmc[22] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[23] = sr & 0x7; sr >>= 3; + xmc[24] = sr & 0x7; sr >>= 3; + xmc[25] = sr & 0x7; sr >>= 3; + sr = *c++; + Nc[2] = sr & 0x7f; sr >>= 7; + sr |= (uword)*c++ << 1; /* 20 */ + bc[2] = sr & 0x3; sr >>= 2; + Mc[2] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 5; + xmaxc[2] = sr & 0x3f; sr >>= 6; + xmc[26] = sr & 0x7; sr >>= 3; + xmc[27] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[28] = sr & 0x7; sr >>= 3; + xmc[29] = sr & 0x7; sr >>= 3; + xmc[30] = sr & 0x7; sr >>= 3; + sr = *c++; + xmc[31] = sr & 0x7; sr >>= 3; + xmc[32] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[33] = sr & 0x7; sr >>= 3; + xmc[34] = sr & 0x7; sr >>= 3; + xmc[35] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; /* 25 */ + xmc[36] = sr & 0x7; sr >>= 3; + xmc[37] = sr & 0x7; sr >>= 3; + xmc[38] = sr & 0x7; sr >>= 3; + sr = *c++; + Nc[3] = sr & 0x7f; sr >>= 7; + sr |= (uword)*c++ << 1; + bc[3] = sr & 0x3; sr >>= 2; + Mc[3] = sr & 0x3; sr >>= 2; + sr |= (uword)*c++ << 5; + xmaxc[3] = sr & 0x3f; sr >>= 6; + xmc[39] = sr & 0x7; sr >>= 3; + xmc[40] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[41] = sr & 0x7; sr >>= 3; + xmc[42] = sr & 0x7; sr >>= 3; + xmc[43] = sr & 0x7; sr >>= 3; + sr = *c++; /* 30 */ + xmc[44] = sr & 0x7; sr >>= 3; + xmc[45] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 2; + xmc[46] = sr & 0x7; sr >>= 3; + xmc[47] = sr & 0x7; sr >>= 3; + xmc[48] = sr & 0x7; sr >>= 3; + sr |= (uword)*c++ << 1; + xmc[49] = sr & 0x7; sr >>= 3; + xmc[50] = sr & 0x7; sr >>= 3; + xmc[51] = sr & 0x7; sr >>= 3; + } + } + else +#endif + { + /* GSM_MAGIC = (*c >> 4) & 0xF; */ + + if (((*c >> 4) & 0x0F) != GSM_MAGIC) return -1; + + LARc[0] = (*c++ & 0xF) << 2; /* 1 */ + LARc[0] |= (*c >> 6) & 0x3; + LARc[1] = *c++ & 0x3F; + LARc[2] = (*c >> 3) & 0x1F; + LARc[3] = (*c++ & 0x7) << 2; + LARc[3] |= (*c >> 6) & 0x3; + LARc[4] = (*c >> 2) & 0xF; + LARc[5] = (*c++ & 0x3) << 2; + LARc[5] |= (*c >> 6) & 0x3; + LARc[6] = (*c >> 3) & 0x7; + LARc[7] = *c++ & 0x7; + Nc[0] = (*c >> 1) & 0x7F; + bc[0] = (*c++ & 0x1) << 1; + bc[0] |= (*c >> 7) & 0x1; + Mc[0] = (*c >> 5) & 0x3; + xmaxc[0] = (*c++ & 0x1F) << 1; + xmaxc[0] |= (*c >> 7) & 0x1; + xmc[0] = (*c >> 4) & 0x7; + xmc[1] = (*c >> 1) & 0x7; + xmc[2] = (*c++ & 0x1) << 2; + xmc[2] |= (*c >> 6) & 0x3; + xmc[3] = (*c >> 3) & 0x7; + xmc[4] = *c++ & 0x7; + xmc[5] = (*c >> 5) & 0x7; + xmc[6] = (*c >> 2) & 0x7; + xmc[7] = (*c++ & 0x3) << 1; /* 10 */ + xmc[7] |= (*c >> 7) & 0x1; + xmc[8] = (*c >> 4) & 0x7; + xmc[9] = (*c >> 1) & 0x7; + xmc[10] = (*c++ & 0x1) << 2; + xmc[10] |= (*c >> 6) & 0x3; + xmc[11] = (*c >> 3) & 0x7; + xmc[12] = *c++ & 0x7; + Nc[1] = (*c >> 1) & 0x7F; + bc[1] = (*c++ & 0x1) << 1; + bc[1] |= (*c >> 7) & 0x1; + Mc[1] = (*c >> 5) & 0x3; + xmaxc[1] = (*c++ & 0x1F) << 1; + xmaxc[1] |= (*c >> 7) & 0x1; + xmc[13] = (*c >> 4) & 0x7; + xmc[14] = (*c >> 1) & 0x7; + xmc[15] = (*c++ & 0x1) << 2; + xmc[15] |= (*c >> 6) & 0x3; + xmc[16] = (*c >> 3) & 0x7; + xmc[17] = *c++ & 0x7; + xmc[18] = (*c >> 5) & 0x7; + xmc[19] = (*c >> 2) & 0x7; + xmc[20] = (*c++ & 0x3) << 1; + xmc[20] |= (*c >> 7) & 0x1; + xmc[21] = (*c >> 4) & 0x7; + xmc[22] = (*c >> 1) & 0x7; + xmc[23] = (*c++ & 0x1) << 2; + xmc[23] |= (*c >> 6) & 0x3; + xmc[24] = (*c >> 3) & 0x7; + xmc[25] = *c++ & 0x7; + Nc[2] = (*c >> 1) & 0x7F; + bc[2] = (*c++ & 0x1) << 1; /* 20 */ + bc[2] |= (*c >> 7) & 0x1; + Mc[2] = (*c >> 5) & 0x3; + xmaxc[2] = (*c++ & 0x1F) << 1; + xmaxc[2] |= (*c >> 7) & 0x1; + xmc[26] = (*c >> 4) & 0x7; + xmc[27] = (*c >> 1) & 0x7; + xmc[28] = (*c++ & 0x1) << 2; + xmc[28] |= (*c >> 6) & 0x3; + xmc[29] = (*c >> 3) & 0x7; + xmc[30] = *c++ & 0x7; + xmc[31] = (*c >> 5) & 0x7; + xmc[32] = (*c >> 2) & 0x7; + xmc[33] = (*c++ & 0x3) << 1; + xmc[33] |= (*c >> 7) & 0x1; + xmc[34] = (*c >> 4) & 0x7; + xmc[35] = (*c >> 1) & 0x7; + xmc[36] = (*c++ & 0x1) << 2; + xmc[36] |= (*c >> 6) & 0x3; + xmc[37] = (*c >> 3) & 0x7; + xmc[38] = *c++ & 0x7; + Nc[3] = (*c >> 1) & 0x7F; + bc[3] = (*c++ & 0x1) << 1; + bc[3] |= (*c >> 7) & 0x1; + Mc[3] = (*c >> 5) & 0x3; + xmaxc[3] = (*c++ & 0x1F) << 1; + xmaxc[3] |= (*c >> 7) & 0x1; + xmc[39] = (*c >> 4) & 0x7; + xmc[40] = (*c >> 1) & 0x7; + xmc[41] = (*c++ & 0x1) << 2; + xmc[41] |= (*c >> 6) & 0x3; + xmc[42] = (*c >> 3) & 0x7; + xmc[43] = *c++ & 0x7; /* 30 */ + xmc[44] = (*c >> 5) & 0x7; + xmc[45] = (*c >> 2) & 0x7; + xmc[46] = (*c++ & 0x3) << 1; + xmc[46] |= (*c >> 7) & 0x1; + xmc[47] = (*c >> 4) & 0x7; + xmc[48] = (*c >> 1) & 0x7; + xmc[49] = (*c++ & 0x1) << 2; + xmc[49] |= (*c >> 6) & 0x3; + xmc[50] = (*c >> 3) & 0x7; + xmc[51] = *c & 0x7; /* 33 */ + } + + Gsm_Decoder(s, LARc, Nc, bc, Mc, xmaxc, xmc, target); + + return 0; +} + diff --git a/src/GSM610/gsm_destroy.c b/src/GSM610/gsm_destroy.c new file mode 100644 index 0000000..9b41711 --- /dev/null +++ b/src/GSM610/gsm_destroy.c @@ -0,0 +1,24 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include "gsm.h" +#include "config.h" + +#ifdef HAS_STDLIB_H +# include <stdlib.h> +#else +# ifdef HAS_MALLOC_H +# include <malloc.h> +# else + extern void free(); +# endif +#endif + +void gsm_destroy (gsm S) +{ + if (S) free((char *)S); +} + diff --git a/src/GSM610/gsm_encode.c b/src/GSM610/gsm_encode.c new file mode 100644 index 0000000..5c9e1ab --- /dev/null +++ b/src/GSM610/gsm_encode.c @@ -0,0 +1,449 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include "gsm610_priv.h" +#include "gsm.h" + +void gsm_encode (gsm s, gsm_signal * source, gsm_byte * c) +{ + word LARc[8], Nc[4], Mc[4], bc[4], xmaxc[4], xmc[13*4]; + + Gsm_Coder(s, source, LARc, Nc, bc, Mc, xmaxc, xmc); + + + /* variable size + + GSM_MAGIC 4 + + LARc[0] 6 + LARc[1] 6 + LARc[2] 5 + LARc[3] 5 + LARc[4] 4 + LARc[5] 4 + LARc[6] 3 + LARc[7] 3 + + Nc[0] 7 + bc[0] 2 + Mc[0] 2 + xmaxc[0] 6 + xmc[0] 3 + xmc[1] 3 + xmc[2] 3 + xmc[3] 3 + xmc[4] 3 + xmc[5] 3 + xmc[6] 3 + xmc[7] 3 + xmc[8] 3 + xmc[9] 3 + xmc[10] 3 + xmc[11] 3 + xmc[12] 3 + + Nc[1] 7 + bc[1] 2 + Mc[1] 2 + xmaxc[1] 6 + xmc[13] 3 + xmc[14] 3 + xmc[15] 3 + xmc[16] 3 + xmc[17] 3 + xmc[18] 3 + xmc[19] 3 + xmc[20] 3 + xmc[21] 3 + xmc[22] 3 + xmc[23] 3 + xmc[24] 3 + xmc[25] 3 + + Nc[2] 7 + bc[2] 2 + Mc[2] 2 + xmaxc[2] 6 + xmc[26] 3 + xmc[27] 3 + xmc[28] 3 + xmc[29] 3 + xmc[30] 3 + xmc[31] 3 + xmc[32] 3 + xmc[33] 3 + xmc[34] 3 + xmc[35] 3 + xmc[36] 3 + xmc[37] 3 + xmc[38] 3 + + Nc[3] 7 + bc[3] 2 + Mc[3] 2 + xmaxc[3] 6 + xmc[39] 3 + xmc[40] 3 + xmc[41] 3 + xmc[42] 3 + xmc[43] 3 + xmc[44] 3 + xmc[45] 3 + xmc[46] 3 + xmc[47] 3 + xmc[48] 3 + xmc[49] 3 + xmc[50] 3 + xmc[51] 3 + */ + +#ifdef WAV49 + + if (s->wav_fmt) { + s->frame_index = !s->frame_index; + if (s->frame_index) { + + uword sr; + + sr = 0; + sr = sr >> 6 | LARc[0] << 10; + sr = sr >> 6 | LARc[1] << 10; + *c++ = sr >> 4; + sr = sr >> 5 | LARc[2] << 11; + *c++ = sr >> 7; + sr = sr >> 5 | LARc[3] << 11; + sr = sr >> 4 | LARc[4] << 12; + *c++ = sr >> 6; + sr = sr >> 4 | LARc[5] << 12; + sr = sr >> 3 | LARc[6] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | LARc[7] << 13; + sr = sr >> 7 | Nc[0] << 9; + *c++ = sr >> 5; + sr = sr >> 2 | bc[0] << 14; + sr = sr >> 2 | Mc[0] << 14; + sr = sr >> 6 | xmaxc[0] << 10; + *c++ = sr >> 3; + sr = sr >> 3 | xmc[0] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[1] << 13; + sr = sr >> 3 | xmc[2] << 13; + sr = sr >> 3 | xmc[3] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[4] << 13; + sr = sr >> 3 | xmc[5] << 13; + sr = sr >> 3 | xmc[6] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[7] << 13; + sr = sr >> 3 | xmc[8] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[9] << 13; + sr = sr >> 3 | xmc[10] << 13; + sr = sr >> 3 | xmc[11] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[12] << 13; + sr = sr >> 7 | Nc[1] << 9; + *c++ = sr >> 5; + sr = sr >> 2 | bc[1] << 14; + sr = sr >> 2 | Mc[1] << 14; + sr = sr >> 6 | xmaxc[1] << 10; + *c++ = sr >> 3; + sr = sr >> 3 | xmc[13] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[14] << 13; + sr = sr >> 3 | xmc[15] << 13; + sr = sr >> 3 | xmc[16] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[17] << 13; + sr = sr >> 3 | xmc[18] << 13; + sr = sr >> 3 | xmc[19] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[20] << 13; + sr = sr >> 3 | xmc[21] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[22] << 13; + sr = sr >> 3 | xmc[23] << 13; + sr = sr >> 3 | xmc[24] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[25] << 13; + sr = sr >> 7 | Nc[2] << 9; + *c++ = sr >> 5; + sr = sr >> 2 | bc[2] << 14; + sr = sr >> 2 | Mc[2] << 14; + sr = sr >> 6 | xmaxc[2] << 10; + *c++ = sr >> 3; + sr = sr >> 3 | xmc[26] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[27] << 13; + sr = sr >> 3 | xmc[28] << 13; + sr = sr >> 3 | xmc[29] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[30] << 13; + sr = sr >> 3 | xmc[31] << 13; + sr = sr >> 3 | xmc[32] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[33] << 13; + sr = sr >> 3 | xmc[34] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[35] << 13; + sr = sr >> 3 | xmc[36] << 13; + sr = sr >> 3 | xmc[37] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[38] << 13; + sr = sr >> 7 | Nc[3] << 9; + *c++ = sr >> 5; + sr = sr >> 2 | bc[3] << 14; + sr = sr >> 2 | Mc[3] << 14; + sr = sr >> 6 | xmaxc[3] << 10; + *c++ = sr >> 3; + sr = sr >> 3 | xmc[39] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[40] << 13; + sr = sr >> 3 | xmc[41] << 13; + sr = sr >> 3 | xmc[42] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[43] << 13; + sr = sr >> 3 | xmc[44] << 13; + sr = sr >> 3 | xmc[45] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[46] << 13; + sr = sr >> 3 | xmc[47] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[48] << 13; + sr = sr >> 3 | xmc[49] << 13; + sr = sr >> 3 | xmc[50] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[51] << 13; + sr = sr >> 4; + *c = sr >> 8; + s->frame_chain = *c; + } + else { + uword sr; + + sr = 0; + sr = sr >> 4 | s->frame_chain << 12; + sr = sr >> 6 | LARc[0] << 10; + *c++ = sr >> 6; + sr = sr >> 6 | LARc[1] << 10; + *c++ = sr >> 8; + sr = sr >> 5 | LARc[2] << 11; + sr = sr >> 5 | LARc[3] << 11; + *c++ = sr >> 6; + sr = sr >> 4 | LARc[4] << 12; + sr = sr >> 4 | LARc[5] << 12; + *c++ = sr >> 6; + sr = sr >> 3 | LARc[6] << 13; + sr = sr >> 3 | LARc[7] << 13; + *c++ = sr >> 8; + sr = sr >> 7 | Nc[0] << 9; + sr = sr >> 2 | bc[0] << 14; + *c++ = sr >> 7; + sr = sr >> 2 | Mc[0] << 14; + sr = sr >> 6 | xmaxc[0] << 10; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[0] << 13; + sr = sr >> 3 | xmc[1] << 13; + sr = sr >> 3 | xmc[2] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[3] << 13; + sr = sr >> 3 | xmc[4] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[5] << 13; + sr = sr >> 3 | xmc[6] << 13; + sr = sr >> 3 | xmc[7] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[8] << 13; + sr = sr >> 3 | xmc[9] << 13; + sr = sr >> 3 | xmc[10] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[11] << 13; + sr = sr >> 3 | xmc[12] << 13; + *c++ = sr >> 8; + sr = sr >> 7 | Nc[1] << 9; + sr = sr >> 2 | bc[1] << 14; + *c++ = sr >> 7; + sr = sr >> 2 | Mc[1] << 14; + sr = sr >> 6 | xmaxc[1] << 10; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[13] << 13; + sr = sr >> 3 | xmc[14] << 13; + sr = sr >> 3 | xmc[15] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[16] << 13; + sr = sr >> 3 | xmc[17] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[18] << 13; + sr = sr >> 3 | xmc[19] << 13; + sr = sr >> 3 | xmc[20] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[21] << 13; + sr = sr >> 3 | xmc[22] << 13; + sr = sr >> 3 | xmc[23] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[24] << 13; + sr = sr >> 3 | xmc[25] << 13; + *c++ = sr >> 8; + sr = sr >> 7 | Nc[2] << 9; + sr = sr >> 2 | bc[2] << 14; + *c++ = sr >> 7; + sr = sr >> 2 | Mc[2] << 14; + sr = sr >> 6 | xmaxc[2] << 10; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[26] << 13; + sr = sr >> 3 | xmc[27] << 13; + sr = sr >> 3 | xmc[28] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[29] << 13; + sr = sr >> 3 | xmc[30] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[31] << 13; + sr = sr >> 3 | xmc[32] << 13; + sr = sr >> 3 | xmc[33] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[34] << 13; + sr = sr >> 3 | xmc[35] << 13; + sr = sr >> 3 | xmc[36] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[37] << 13; + sr = sr >> 3 | xmc[38] << 13; + *c++ = sr >> 8; + sr = sr >> 7 | Nc[3] << 9; + sr = sr >> 2 | bc[3] << 14; + *c++ = sr >> 7; + sr = sr >> 2 | Mc[3] << 14; + sr = sr >> 6 | xmaxc[3] << 10; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[39] << 13; + sr = sr >> 3 | xmc[40] << 13; + sr = sr >> 3 | xmc[41] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[42] << 13; + sr = sr >> 3 | xmc[43] << 13; + *c++ = sr >> 8; + sr = sr >> 3 | xmc[44] << 13; + sr = sr >> 3 | xmc[45] << 13; + sr = sr >> 3 | xmc[46] << 13; + *c++ = sr >> 7; + sr = sr >> 3 | xmc[47] << 13; + sr = sr >> 3 | xmc[48] << 13; + sr = sr >> 3 | xmc[49] << 13; + *c++ = sr >> 6; + sr = sr >> 3 | xmc[50] << 13; + sr = sr >> 3 | xmc[51] << 13; + *c++ = sr >> 8; + } + } + + else + +#endif /* WAV49 */ + { + + *c++ = ((GSM_MAGIC & 0xF) << 4) /* 1 */ + | ((LARc[0] >> 2) & 0xF); + *c++ = ((LARc[0] & 0x3) << 6) + | (LARc[1] & 0x3F); + *c++ = ((LARc[2] & 0x1F) << 3) + | ((LARc[3] >> 2) & 0x7); + *c++ = ((LARc[3] & 0x3) << 6) + | ((LARc[4] & 0xF) << 2) + | ((LARc[5] >> 2) & 0x3); + *c++ = ((LARc[5] & 0x3) << 6) + | ((LARc[6] & 0x7) << 3) + | (LARc[7] & 0x7); + *c++ = ((Nc[0] & 0x7F) << 1) + | ((bc[0] >> 1) & 0x1); + *c++ = ((bc[0] & 0x1) << 7) + | ((Mc[0] & 0x3) << 5) + | ((xmaxc[0] >> 1) & 0x1F); + *c++ = ((xmaxc[0] & 0x1) << 7) + | ((xmc[0] & 0x7) << 4) + | ((xmc[1] & 0x7) << 1) + | ((xmc[2] >> 2) & 0x1); + *c++ = ((xmc[2] & 0x3) << 6) + | ((xmc[3] & 0x7) << 3) + | (xmc[4] & 0x7); + *c++ = ((xmc[5] & 0x7) << 5) /* 10 */ + | ((xmc[6] & 0x7) << 2) + | ((xmc[7] >> 1) & 0x3); + *c++ = ((xmc[7] & 0x1) << 7) + | ((xmc[8] & 0x7) << 4) + | ((xmc[9] & 0x7) << 1) + | ((xmc[10] >> 2) & 0x1); + *c++ = ((xmc[10] & 0x3) << 6) + | ((xmc[11] & 0x7) << 3) + | (xmc[12] & 0x7); + *c++ = ((Nc[1] & 0x7F) << 1) + | ((bc[1] >> 1) & 0x1); + *c++ = ((bc[1] & 0x1) << 7) + | ((Mc[1] & 0x3) << 5) + | ((xmaxc[1] >> 1) & 0x1F); + *c++ = ((xmaxc[1] & 0x1) << 7) + | ((xmc[13] & 0x7) << 4) + | ((xmc[14] & 0x7) << 1) + | ((xmc[15] >> 2) & 0x1); + *c++ = ((xmc[15] & 0x3) << 6) + | ((xmc[16] & 0x7) << 3) + | (xmc[17] & 0x7); + *c++ = ((xmc[18] & 0x7) << 5) + | ((xmc[19] & 0x7) << 2) + | ((xmc[20] >> 1) & 0x3); + *c++ = ((xmc[20] & 0x1) << 7) + | ((xmc[21] & 0x7) << 4) + | ((xmc[22] & 0x7) << 1) + | ((xmc[23] >> 2) & 0x1); + *c++ = ((xmc[23] & 0x3) << 6) + | ((xmc[24] & 0x7) << 3) + | (xmc[25] & 0x7); + *c++ = ((Nc[2] & 0x7F) << 1) /* 20 */ + | ((bc[2] >> 1) & 0x1); + *c++ = ((bc[2] & 0x1) << 7) + | ((Mc[2] & 0x3) << 5) + | ((xmaxc[2] >> 1) & 0x1F); + *c++ = ((xmaxc[2] & 0x1) << 7) + | ((xmc[26] & 0x7) << 4) + | ((xmc[27] & 0x7) << 1) + | ((xmc[28] >> 2) & 0x1); + *c++ = ((xmc[28] & 0x3) << 6) + | ((xmc[29] & 0x7) << 3) + | (xmc[30] & 0x7); + *c++ = ((xmc[31] & 0x7) << 5) + | ((xmc[32] & 0x7) << 2) + | ((xmc[33] >> 1) & 0x3); + *c++ = ((xmc[33] & 0x1) << 7) + | ((xmc[34] & 0x7) << 4) + | ((xmc[35] & 0x7) << 1) + | ((xmc[36] >> 2) & 0x1); + *c++ = ((xmc[36] & 0x3) << 6) + | ((xmc[37] & 0x7) << 3) + | (xmc[38] & 0x7); + *c++ = ((Nc[3] & 0x7F) << 1) + | ((bc[3] >> 1) & 0x1); + *c++ = ((bc[3] & 0x1) << 7) + | ((Mc[3] & 0x3) << 5) + | ((xmaxc[3] >> 1) & 0x1F); + *c++ = ((xmaxc[3] & 0x1) << 7) + | ((xmc[39] & 0x7) << 4) + | ((xmc[40] & 0x7) << 1) + | ((xmc[41] >> 2) & 0x1); + *c++ = ((xmc[41] & 0x3) << 6) /* 30 */ + | ((xmc[42] & 0x7) << 3) + | (xmc[43] & 0x7); + *c++ = ((xmc[44] & 0x7) << 5) + | ((xmc[45] & 0x7) << 2) + | ((xmc[46] >> 1) & 0x3); + *c++ = ((xmc[46] & 0x1) << 7) + | ((xmc[47] & 0x7) << 4) + | ((xmc[48] & 0x7) << 1) + | ((xmc[49] >> 2) & 0x1); + *c++ = ((xmc[49] & 0x3) << 6) + | ((xmc[50] & 0x7) << 3) + | (xmc[51] & 0x7); + + } +} + diff --git a/src/GSM610/gsm_option.c b/src/GSM610/gsm_option.c new file mode 100644 index 0000000..0139c35 --- /dev/null +++ b/src/GSM610/gsm_option.c @@ -0,0 +1,66 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include "gsm610_priv.h" + +#include "gsm.h" + +int gsm_option (gsm r, int opt, int * val) +{ + int result = -1; + + switch (opt) { + case GSM_OPT_LTP_CUT: +#ifdef LTP_CUT + result = r->ltp_cut; + if (val) r->ltp_cut = *val; +#endif + break; + + case GSM_OPT_VERBOSE: +#ifndef NDEBUG + result = r->verbose; + if (val) r->verbose = *val; +#endif + break; + + case GSM_OPT_FAST: + +#if defined(FAST) && defined(USE_FLOAT_MUL) + result = r->fast; + if (val) r->fast = !!*val; +#endif + break; + + case GSM_OPT_FRAME_CHAIN: + +#ifdef WAV49 + result = r->frame_chain; + if (val) r->frame_chain = *val; +#endif + break; + + case GSM_OPT_FRAME_INDEX: + +#ifdef WAV49 + result = r->frame_index; + if (val) r->frame_index = *val; +#endif + break; + + case GSM_OPT_WAV49: + +#ifdef WAV49 + result = r->wav_fmt; + if (val) r->wav_fmt = !!*val; +#endif + break; + + default: + break; + } + return result; +} diff --git a/src/GSM610/long_term.c b/src/GSM610/long_term.c new file mode 100644 index 0000000..0d2cd0f --- /dev/null +++ b/src/GSM610/long_term.c @@ -0,0 +1,959 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +/* + * 4.2.11 .. 4.2.12 LONG TERM PREDICTOR (LTP) SECTION + */ + + +/* + * This module computes the LTP gain (bc) and the LTP lag (Nc) + * for the long term analysis filter. This is done by calculating a + * maximum of the cross-correlation function between the current + * sub-segment short term residual signal d[0..39] (output of + * the short term analysis filter; for simplification the index + * of this array begins at 0 and ends at 39 for each sub-segment of the + * RPE-LTP analysis) and the previous reconstructed short term + * residual signal dp[ -120 .. -1 ]. A dynamic scaling must be + * performed to avoid overflow. + */ + + /* The next procedure exists in six versions. First two integer + * version (if USE_FLOAT_MUL is not defined); then four floating + * point versions, twice with proper scaling (USE_FLOAT_MUL defined), + * once without (USE_FLOAT_MUL and FAST defined, and fast run-time + * option used). Every pair has first a Cut version (see the -C + * option to toast or the LTP_CUT option to gsm_option()), then the + * uncut one. (For a detailed explanation of why this is altogether + * a bad idea, see Henry Spencer and Geoff Collyer, ``#ifdef Considered + * Harmful''.) + */ + +#ifndef USE_FLOAT_MUL + +#ifdef LTP_CUT + +static void Cut_Calculation_of_the_LTP_parameters ( + + struct gsm_state * st, + + register word * d, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + word Nc, bc; + word wt[40]; + + longword L_result; + longword L_max, L_power; + word R, S, dmax, scal, best_k; + word ltp_cut; + + register word temp, wt_k; + + /* Search of the optimum scaling of d[0..39]. + */ + dmax = 0; + for (k = 0; k <= 39; k++) { + temp = d[k]; + temp = GSM_ABS( temp ); + if (temp > dmax) { + dmax = temp; + best_k = k; + } + } + temp = 0; + if (dmax == 0) scal = 0; + else { + assert(dmax > 0); + temp = gsm_norm( (longword)dmax << 16 ); + } + if (temp > 6) scal = 0; + else scal = 6 - temp; + assert(scal >= 0); + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + wt_k = SASR_W(d[best_k], scal); + + for (lambda = 40; lambda <= 120; lambda++) { + L_result = (longword)wt_k * dp[best_k - lambda]; + if (L_result > L_max) { + Nc = lambda; + L_max = L_result; + } + } + *Nc_out = Nc; + L_max <<= 1; + + /* Rescaling of L_max + */ + assert(scal <= 100 && scal >= -100); + L_max = L_max >> (6 - scal); /* sub(6, scal) */ + + assert( Nc <= 120 && Nc >= 40); + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + L_power = 0; + for (k = 0; k <= 39; k++) { + + register longword L_temp; + + L_temp = SASR_W( dp[k - Nc], 3 ); + L_power += L_temp * L_temp; + } + L_power <<= 1; /* from L_MULT */ + + /* Normalization of L_max and L_power + */ + + if (L_max <= 0) { + *bc_out = 0; + return; + } + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + temp = gsm_norm( L_power ); + + R = SASR( L_max << temp, 16 ); + S = SASR( L_power << temp, 16 ); + + /* Coding of the LTP gain + */ + + /* Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + for (bc = 0; bc <= 2; bc++) if (R <= gsm_mult(S, gsm_DLB[bc])) break; + *bc_out = bc; +} + +#endif /* LTP_CUT */ + +static void Calculation_of_the_LTP_parameters ( + register word * d, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + word Nc, bc; + word wt[40]; + + longword L_max, L_power; + word R, S, dmax, scal; + register word temp; + + /* Search of the optimum scaling of d[0..39]. + */ + dmax = 0; + + for (k = 0; k <= 39; k++) { + temp = d[k]; + temp = GSM_ABS( temp ); + if (temp > dmax) dmax = temp; + } + + temp = 0; + if (dmax == 0) scal = 0; + else { + assert(dmax > 0); + temp = gsm_norm( (longword)dmax << 16 ); + } + + if (temp > 6) scal = 0; + else scal = 6 - temp; + + assert(scal >= 0); + + /* Initialization of a working array wt + */ + + for (k = 0; k <= 39; k++) wt[k] = SASR_W( d[k], scal ); + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + + for (lambda = 40; lambda <= 120; lambda++) { + +# undef STEP +# define STEP(k) (longword)wt[k] * dp[k - lambda] + + register longword L_result; + + L_result = STEP(0) ; L_result += STEP(1) ; + L_result += STEP(2) ; L_result += STEP(3) ; + L_result += STEP(4) ; L_result += STEP(5) ; + L_result += STEP(6) ; L_result += STEP(7) ; + L_result += STEP(8) ; L_result += STEP(9) ; + L_result += STEP(10) ; L_result += STEP(11) ; + L_result += STEP(12) ; L_result += STEP(13) ; + L_result += STEP(14) ; L_result += STEP(15) ; + L_result += STEP(16) ; L_result += STEP(17) ; + L_result += STEP(18) ; L_result += STEP(19) ; + L_result += STEP(20) ; L_result += STEP(21) ; + L_result += STEP(22) ; L_result += STEP(23) ; + L_result += STEP(24) ; L_result += STEP(25) ; + L_result += STEP(26) ; L_result += STEP(27) ; + L_result += STEP(28) ; L_result += STEP(29) ; + L_result += STEP(30) ; L_result += STEP(31) ; + L_result += STEP(32) ; L_result += STEP(33) ; + L_result += STEP(34) ; L_result += STEP(35) ; + L_result += STEP(36) ; L_result += STEP(37) ; + L_result += STEP(38) ; L_result += STEP(39) ; + + if (L_result > L_max) { + + Nc = lambda; + L_max = L_result; + } + } + + *Nc_out = Nc; + + L_max <<= 1; + + /* Rescaling of L_max + */ + assert(scal <= 100 && scal >= -100); + L_max = L_max >> (6 - scal); /* sub(6, scal) */ + + assert( Nc <= 120 && Nc >= 40); + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + L_power = 0; + for (k = 0; k <= 39; k++) { + + register longword L_temp; + + L_temp = SASR_W( dp[k - Nc], 3 ); + L_power += L_temp * L_temp; + } + L_power <<= 1; /* from L_MULT */ + + /* Normalization of L_max and L_power + */ + + if (L_max <= 0) { + *bc_out = 0; + return; + } + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + temp = gsm_norm( L_power ); + + R = SASR_L( L_max << temp, 16 ); + S = SASR_L( L_power << temp, 16 ); + + /* Coding of the LTP gain + */ + + /* Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + for (bc = 0; bc <= 2; bc++) if (R <= gsm_mult(S, gsm_DLB[bc])) break; + *bc_out = bc; +} + +#else /* USE_FLOAT_MUL */ + +#ifdef LTP_CUT + +static void Cut_Calculation_of_the_LTP_parameters ( + struct gsm_state * st, /* IN */ + register word * d, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + word Nc, bc; + word ltp_cut; + + float wt_float[40]; + float dp_float_base[120], * dp_float = dp_float_base + 120; + + longword L_max, L_power; + word R, S, dmax, scal; + register word temp; + + /* Search of the optimum scaling of d[0..39]. + */ + dmax = 0; + + for (k = 0; k <= 39; k++) { + temp = d[k]; + temp = GSM_ABS( temp ); + if (temp > dmax) dmax = temp; + } + + temp = 0; + if (dmax == 0) scal = 0; + else { + assert(dmax > 0); + temp = gsm_norm( (longword)dmax << 16 ); + } + + if (temp > 6) scal = 0; + else scal = 6 - temp; + + assert(scal >= 0); + ltp_cut = (longword)SASR_W(dmax, scal) * st->ltp_cut / 100; + + + /* Initialization of a working array wt + */ + + for (k = 0; k < 40; k++) { + register word w = SASR_W( d[k], scal ); + if (w < 0 ? w > -ltp_cut : w < ltp_cut) { + wt_float[k] = 0.0; + } + else { + wt_float[k] = w; + } + } + for (k = -120; k < 0; k++) dp_float[k] = dp[k]; + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + + for (lambda = 40; lambda <= 120; lambda += 9) { + + /* Calculate L_result for l = lambda .. lambda + 9. + */ + register float *lp = dp_float - lambda; + + register float W; + register float a = lp[-8], b = lp[-7], c = lp[-6], + d = lp[-5], e = lp[-4], f = lp[-3], + g = lp[-2], h = lp[-1]; + register float E; + register float S0 = 0, S1 = 0, S2 = 0, S3 = 0, S4 = 0, + S5 = 0, S6 = 0, S7 = 0, S8 = 0; + +# undef STEP +# define STEP(K, a, b, c, d, e, f, g, h) \ + if ((W = wt_float[K]) != 0.0) { \ + E = W * a; S8 += E; \ + E = W * b; S7 += E; \ + E = W * c; S6 += E; \ + E = W * d; S5 += E; \ + E = W * e; S4 += E; \ + E = W * f; S3 += E; \ + E = W * g; S2 += E; \ + E = W * h; S1 += E; \ + a = lp[K]; \ + E = W * a; S0 += E; } else (a = lp[K]) + +# define STEP_A(K) STEP(K, a, b, c, d, e, f, g, h) +# define STEP_B(K) STEP(K, b, c, d, e, f, g, h, a) +# define STEP_C(K) STEP(K, c, d, e, f, g, h, a, b) +# define STEP_D(K) STEP(K, d, e, f, g, h, a, b, c) +# define STEP_E(K) STEP(K, e, f, g, h, a, b, c, d) +# define STEP_F(K) STEP(K, f, g, h, a, b, c, d, e) +# define STEP_G(K) STEP(K, g, h, a, b, c, d, e, f) +# define STEP_H(K) STEP(K, h, a, b, c, d, e, f, g) + + STEP_A( 0); STEP_B( 1); STEP_C( 2); STEP_D( 3); + STEP_E( 4); STEP_F( 5); STEP_G( 6); STEP_H( 7); + + STEP_A( 8); STEP_B( 9); STEP_C(10); STEP_D(11); + STEP_E(12); STEP_F(13); STEP_G(14); STEP_H(15); + + STEP_A(16); STEP_B(17); STEP_C(18); STEP_D(19); + STEP_E(20); STEP_F(21); STEP_G(22); STEP_H(23); + + STEP_A(24); STEP_B(25); STEP_C(26); STEP_D(27); + STEP_E(28); STEP_F(29); STEP_G(30); STEP_H(31); + + STEP_A(32); STEP_B(33); STEP_C(34); STEP_D(35); + STEP_E(36); STEP_F(37); STEP_G(38); STEP_H(39); + +# undef STEP_A +# undef STEP_B +# undef STEP_C +# undef STEP_D +# undef STEP_E +# undef STEP_F +# undef STEP_G +# undef STEP_H + + if (S0 > L_max) { L_max = S0; Nc = lambda; } + if (S1 > L_max) { L_max = S1; Nc = lambda + 1; } + if (S2 > L_max) { L_max = S2; Nc = lambda + 2; } + if (S3 > L_max) { L_max = S3; Nc = lambda + 3; } + if (S4 > L_max) { L_max = S4; Nc = lambda + 4; } + if (S5 > L_max) { L_max = S5; Nc = lambda + 5; } + if (S6 > L_max) { L_max = S6; Nc = lambda + 6; } + if (S7 > L_max) { L_max = S7; Nc = lambda + 7; } + if (S8 > L_max) { L_max = S8; Nc = lambda + 8; } + + } + *Nc_out = Nc; + + L_max <<= 1; + + /* Rescaling of L_max + */ + assert(scal <= 100 && scal >= -100); + L_max = L_max >> (6 - scal); /* sub(6, scal) */ + + assert( Nc <= 120 && Nc >= 40); + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + L_power = 0; + for (k = 0; k <= 39; k++) { + + register longword L_temp; + + L_temp = SASR_W( dp[k - Nc], 3 ); + L_power += L_temp * L_temp; + } + L_power <<= 1; /* from L_MULT */ + + /* Normalization of L_max and L_power + */ + + if (L_max <= 0) { + *bc_out = 0; + return; + } + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + temp = gsm_norm( L_power ); + + R = SASR( L_max << temp, 16 ); + S = SASR( L_power << temp, 16 ); + + /* Coding of the LTP gain + */ + + /* Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + for (bc = 0; bc <= 2; bc++) if (R <= gsm_mult(S, gsm_DLB[bc])) break; + *bc_out = bc; +} + +#endif /* LTP_CUT */ + +static void Calculation_of_the_LTP_parameters ( + register word * din, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + word Nc, bc; + + float wt_float[40]; + float dp_float_base[120], * dp_float = dp_float_base + 120; + + longword L_max, L_power; + word R, S, dmax, scal; + register word temp; + + /* Search of the optimum scaling of d[0..39]. + */ + dmax = 0; + + for (k = 0; k <= 39; k++) { + temp = din [k] ; + temp = GSM_ABS (temp) ; + if (temp > dmax) dmax = temp; + } + + temp = 0; + if (dmax == 0) scal = 0; + else { + assert(dmax > 0); + temp = gsm_norm( (longword)dmax << 16 ); + } + + if (temp > 6) scal = 0; + else scal = 6 - temp; + + assert(scal >= 0); + + /* Initialization of a working array wt + */ + + for (k = 0; k < 40; k++) wt_float[k] = SASR_W (din [k], scal) ; + for (k = -120; k < 0; k++) dp_float[k] = dp[k]; + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + + for (lambda = 40; lambda <= 120; lambda += 9) { + + /* Calculate L_result for l = lambda .. lambda + 9. + */ + register float *lp = dp_float - lambda; + + register float W; + register float a = lp[-8], b = lp[-7], c = lp[-6], + d = lp[-5], e = lp[-4], f = lp[-3], + g = lp[-2], h = lp[-1]; + register float E; + register float S0 = 0, S1 = 0, S2 = 0, S3 = 0, S4 = 0, + S5 = 0, S6 = 0, S7 = 0, S8 = 0; + +# undef STEP +# define STEP(K, a, b, c, d, e, f, g, h) \ + W = wt_float[K]; \ + E = W * a; S8 += E; \ + E = W * b; S7 += E; \ + E = W * c; S6 += E; \ + E = W * d; S5 += E; \ + E = W * e; S4 += E; \ + E = W * f; S3 += E; \ + E = W * g; S2 += E; \ + E = W * h; S1 += E; \ + a = lp[K]; \ + E = W * a; S0 += E + +# define STEP_A(K) STEP(K, a, b, c, d, e, f, g, h) +# define STEP_B(K) STEP(K, b, c, d, e, f, g, h, a) +# define STEP_C(K) STEP(K, c, d, e, f, g, h, a, b) +# define STEP_D(K) STEP(K, d, e, f, g, h, a, b, c) +# define STEP_E(K) STEP(K, e, f, g, h, a, b, c, d) +# define STEP_F(K) STEP(K, f, g, h, a, b, c, d, e) +# define STEP_G(K) STEP(K, g, h, a, b, c, d, e, f) +# define STEP_H(K) STEP(K, h, a, b, c, d, e, f, g) + + STEP_A( 0); STEP_B( 1); STEP_C( 2); STEP_D( 3); + STEP_E( 4); STEP_F( 5); STEP_G( 6); STEP_H( 7); + + STEP_A( 8); STEP_B( 9); STEP_C(10); STEP_D(11); + STEP_E(12); STEP_F(13); STEP_G(14); STEP_H(15); + + STEP_A(16); STEP_B(17); STEP_C(18); STEP_D(19); + STEP_E(20); STEP_F(21); STEP_G(22); STEP_H(23); + + STEP_A(24); STEP_B(25); STEP_C(26); STEP_D(27); + STEP_E(28); STEP_F(29); STEP_G(30); STEP_H(31); + + STEP_A(32); STEP_B(33); STEP_C(34); STEP_D(35); + STEP_E(36); STEP_F(37); STEP_G(38); STEP_H(39); + +# undef STEP_A +# undef STEP_B +# undef STEP_C +# undef STEP_D +# undef STEP_E +# undef STEP_F +# undef STEP_G +# undef STEP_H + + if (S0 > L_max) { L_max = S0; Nc = lambda; } + if (S1 > L_max) { L_max = S1; Nc = lambda + 1; } + if (S2 > L_max) { L_max = S2; Nc = lambda + 2; } + if (S3 > L_max) { L_max = S3; Nc = lambda + 3; } + if (S4 > L_max) { L_max = S4; Nc = lambda + 4; } + if (S5 > L_max) { L_max = S5; Nc = lambda + 5; } + if (S6 > L_max) { L_max = S6; Nc = lambda + 6; } + if (S7 > L_max) { L_max = S7; Nc = lambda + 7; } + if (S8 > L_max) { L_max = S8; Nc = lambda + 8; } + } + *Nc_out = Nc; + + L_max <<= 1; + + /* Rescaling of L_max + */ + assert(scal <= 100 && scal >= -100); + L_max = L_max >> (6 - scal); /* sub(6, scal) */ + + assert( Nc <= 120 && Nc >= 40); + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + L_power = 0; + for (k = 0; k <= 39; k++) { + + register longword L_temp; + + L_temp = SASR_W( dp[k - Nc], 3 ); + L_power += L_temp * L_temp; + } + L_power <<= 1; /* from L_MULT */ + + /* Normalization of L_max and L_power + */ + + if (L_max <= 0) { + *bc_out = 0; + return; + } + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + temp = gsm_norm( L_power ); + + R = SASR_L ( L_max << temp, 16 ); + S = SASR_L ( L_power << temp, 16 ); + + /* Coding of the LTP gain + */ + + /* Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + for (bc = 0; bc <= 2; bc++) if (R <= gsm_mult(S, gsm_DLB[bc])) break; + *bc_out = bc; +} + +#ifdef FAST +#ifdef LTP_CUT + +static void Cut_Fast_Calculation_of_the_LTP_parameters ( + struct gsm_state * st, /* IN */ + register word * d, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + register float wt_float; + word Nc, bc; + word wt_max, best_k, ltp_cut; + + float dp_float_base[120], * dp_float = dp_float_base + 120; + + register float L_result, L_max, L_power; + + wt_max = 0; + + for (k = 0; k < 40; ++k) { + if ( d[k] > wt_max) wt_max = d[best_k = k]; + else if (-d[k] > wt_max) wt_max = -d[best_k = k]; + } + + assert(wt_max >= 0); + wt_float = (float)wt_max; + + for (k = -120; k < 0; ++k) dp_float[k] = (float)dp[k]; + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + + for (lambda = 40; lambda <= 120; lambda++) { + L_result = wt_float * dp_float[best_k - lambda]; + if (L_result > L_max) { + Nc = lambda; + L_max = L_result; + } + } + + *Nc_out = Nc; + if (L_max <= 0.) { + *bc_out = 0; + return; + } + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + dp_float -= Nc; + L_power = 0; + for (k = 0; k < 40; ++k) { + register float f = dp_float[k]; + L_power += f * f; + } + + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + /* Coding of the LTP gain + * Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + lambda = L_max / L_power * 32768.; + for (bc = 0; bc <= 2; ++bc) if (lambda <= gsm_DLB[bc]) break; + *bc_out = bc; +} + +#endif /* LTP_CUT */ + +static void Fast_Calculation_of_the_LTP_parameters ( + register word * din, /* [0..39] IN */ + register word * dp, /* [-120..-1] IN */ + word * bc_out, /* OUT */ + word * Nc_out /* OUT */ +) +{ + register int k, lambda; + word Nc, bc; + + float wt_float[40]; + float dp_float_base[120], * dp_float = dp_float_base + 120; + + register float L_max, L_power; + + for (k = 0; k < 40; ++k) wt_float[k] = (float) din [k] ; + for (k = -120; k < 0; ++k) dp_float[k] = (float) dp [k] ; + + /* Search for the maximum cross-correlation and coding of the LTP lag + */ + L_max = 0; + Nc = 40; /* index for the maximum cross-correlation */ + + for (lambda = 40; lambda <= 120; lambda += 9) { + + /* Calculate L_result for l = lambda .. lambda + 9. + */ + register float *lp = dp_float - lambda; + + register float W; + register float a = lp[-8], b = lp[-7], c = lp[-6], + d = lp[-5], e = lp[-4], f = lp[-3], + g = lp[-2], h = lp[-1]; + register float E; + register float S0 = 0, S1 = 0, S2 = 0, S3 = 0, S4 = 0, + S5 = 0, S6 = 0, S7 = 0, S8 = 0; + +# undef STEP +# define STEP(K, a, b, c, d, e, f, g, h) \ + W = wt_float[K]; \ + E = W * a; S8 += E; \ + E = W * b; S7 += E; \ + E = W * c; S6 += E; \ + E = W * d; S5 += E; \ + E = W * e; S4 += E; \ + E = W * f; S3 += E; \ + E = W * g; S2 += E; \ + E = W * h; S1 += E; \ + a = lp[K]; \ + E = W * a; S0 += E + +# define STEP_A(K) STEP(K, a, b, c, d, e, f, g, h) +# define STEP_B(K) STEP(K, b, c, d, e, f, g, h, a) +# define STEP_C(K) STEP(K, c, d, e, f, g, h, a, b) +# define STEP_D(K) STEP(K, d, e, f, g, h, a, b, c) +# define STEP_E(K) STEP(K, e, f, g, h, a, b, c, d) +# define STEP_F(K) STEP(K, f, g, h, a, b, c, d, e) +# define STEP_G(K) STEP(K, g, h, a, b, c, d, e, f) +# define STEP_H(K) STEP(K, h, a, b, c, d, e, f, g) + + STEP_A( 0); STEP_B( 1); STEP_C( 2); STEP_D( 3); + STEP_E( 4); STEP_F( 5); STEP_G( 6); STEP_H( 7); + + STEP_A( 8); STEP_B( 9); STEP_C(10); STEP_D(11); + STEP_E(12); STEP_F(13); STEP_G(14); STEP_H(15); + + STEP_A(16); STEP_B(17); STEP_C(18); STEP_D(19); + STEP_E(20); STEP_F(21); STEP_G(22); STEP_H(23); + + STEP_A(24); STEP_B(25); STEP_C(26); STEP_D(27); + STEP_E(28); STEP_F(29); STEP_G(30); STEP_H(31); + + STEP_A(32); STEP_B(33); STEP_C(34); STEP_D(35); + STEP_E(36); STEP_F(37); STEP_G(38); STEP_H(39); + + if (S0 > L_max) { L_max = S0; Nc = lambda; } + if (S1 > L_max) { L_max = S1; Nc = lambda + 1; } + if (S2 > L_max) { L_max = S2; Nc = lambda + 2; } + if (S3 > L_max) { L_max = S3; Nc = lambda + 3; } + if (S4 > L_max) { L_max = S4; Nc = lambda + 4; } + if (S5 > L_max) { L_max = S5; Nc = lambda + 5; } + if (S6 > L_max) { L_max = S6; Nc = lambda + 6; } + if (S7 > L_max) { L_max = S7; Nc = lambda + 7; } + if (S8 > L_max) { L_max = S8; Nc = lambda + 8; } + } + *Nc_out = Nc; + + if (L_max <= 0.) { + *bc_out = 0; + return; + } + + /* Compute the power of the reconstructed short term residual + * signal dp[..] + */ + dp_float -= Nc; + L_power = 0; + for (k = 0; k < 40; ++k) { + register float f = dp_float[k]; + L_power += f * f; + } + + if (L_max >= L_power) { + *bc_out = 3; + return; + } + + /* Coding of the LTP gain + * Table 4.3a must be used to obtain the level DLB[i] for the + * quantization of the LTP gain b to get the coded version bc. + */ + lambda = L_max / L_power * 32768.; + for (bc = 0; bc <= 2; ++bc) if (lambda <= gsm_DLB[bc]) break; + *bc_out = bc; +} + +#endif /* FAST */ +#endif /* USE_FLOAT_MUL */ + + +/* 4.2.12 */ + +static void Long_term_analysis_filtering ( + word bc, /* IN */ + word Nc, /* IN */ + register word * dp, /* previous d [-120..-1] IN */ + register word * d, /* d [0..39] IN */ + register word * dpp, /* estimate [0..39] OUT */ + register word * e /* long term res. signal [0..39] OUT */ +) +/* + * In this part, we have to decode the bc parameter to compute + * the samples of the estimate dpp[0..39]. The decoding of bc needs the + * use of table 4.3b. The long term residual signal e[0..39] + * is then calculated to be fed to the RPE encoding section. + */ +{ + register int k; + +# undef STEP +# define STEP(BP) \ + for (k = 0; k <= 39; k++) { \ + dpp[k] = GSM_MULT_R( BP, dp[k - Nc]); \ + e[k] = GSM_SUB( d[k], dpp[k] ); \ + } + + switch (bc) { + case 0: STEP( 3277 ); break; + case 1: STEP( 11469 ); break; + case 2: STEP( 21299 ); break; + case 3: STEP( 32767 ); break; + } +} + +void Gsm_Long_Term_Predictor ( /* 4x for 160 samples */ + + struct gsm_state * S, + + word * d, /* [0..39] residual signal IN */ + word * dp, /* [-120..-1] d' IN */ + + word * e, /* [0..39] OUT */ + word * dpp, /* [0..39] OUT */ + word * Nc, /* correlation lag OUT */ + word * bc /* gain factor OUT */ +) +{ + assert( d ); assert( dp ); assert( e ); + assert( dpp); assert( Nc ); assert( bc ); + +#if defined(FAST) && defined(USE_FLOAT_MUL) + if (S->fast) +#if defined (LTP_CUT) + if (S->ltp_cut) + Cut_Fast_Calculation_of_the_LTP_parameters(S, + d, dp, bc, Nc); + else +#endif /* LTP_CUT */ + Fast_Calculation_of_the_LTP_parameters(d, dp, bc, Nc ); + else +#endif /* FAST & USE_FLOAT_MUL */ +#ifdef LTP_CUT + if (S->ltp_cut) + Cut_Calculation_of_the_LTP_parameters(S, d, dp, bc, Nc); + else +#endif + Calculation_of_the_LTP_parameters(d, dp, bc, Nc); + + Long_term_analysis_filtering( *bc, *Nc, dp, d, dpp, e ); +} + +/* 4.3.2 */ +void Gsm_Long_Term_Synthesis_Filtering ( + struct gsm_state * S, + + word Ncr, + word bcr, + register word * erp, /* [0..39] IN */ + register word * drp /* [-120..-1] IN, [-120..40] OUT */ +) +/* + * This procedure uses the bcr and Ncr parameter to realize the + * long term synthesis filtering. The decoding of bcr needs + * table 4.3b. + */ +{ + register int k; + word brp, drpp, Nr; + + /* Check the limits of Nr. + */ + Nr = Ncr < 40 || Ncr > 120 ? S->nrp : Ncr; + S->nrp = Nr; + assert(Nr >= 40 && Nr <= 120); + + /* Decoding of the LTP gain bcr + */ + brp = gsm_QLB[ bcr ]; + + /* Computation of the reconstructed short term residual + * signal drp[0..39] + */ + assert(brp != MIN_WORD); + + for (k = 0; k <= 39; k++) { + drpp = GSM_MULT_R( brp, drp[ k - Nr ] ); + drp[k] = GSM_ADD( erp[k], drpp ); + } + + /* + * Update of the reconstructed short term residual signal + * drp[ -1..-120 ] + */ + + for (k = 0; k <= 119; k++) drp[ -120 + k ] = drp[ -80 + k ]; +} diff --git a/src/GSM610/lpc.c b/src/GSM610/lpc.c new file mode 100644 index 0000000..0e776e3 --- /dev/null +++ b/src/GSM610/lpc.c @@ -0,0 +1,331 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +/* + * 4.2.4 .. 4.2.7 LPC ANALYSIS SECTION + */ + +/* 4.2.4 */ + + +static void Autocorrelation ( + word * s, /* [0..159] IN/OUT */ + longword * L_ACF) /* [0..8] OUT */ +/* + * The goal is to compute the array L_ACF[k]. The signal s[i] must + * be scaled in order to avoid an overflow situation. + */ +{ + register int k, i; + + word temp, smax, scalauto; + +#ifdef USE_FLOAT_MUL + float float_s[160]; +#endif + + /* Dynamic scaling of the array s[0..159] + */ + + /* Search for the maximum. + */ + smax = 0; + for (k = 0; k <= 159; k++) { + temp = GSM_ABS( s[k] ); + if (temp > smax) smax = temp; + } + + /* Computation of the scaling factor. + */ + if (smax == 0) scalauto = 0; + else { + assert(smax > 0); + scalauto = 4 - gsm_norm( (longword)smax << 16 );/* sub(4,..) */ + } + + /* Scaling of the array s[0...159] + */ + + if (scalauto > 0) { + +# ifdef USE_FLOAT_MUL +# define SCALE(n) \ + case n: for (k = 0; k <= 159; k++) \ + float_s[k] = (float) \ + (s[k] = GSM_MULT_R(s[k], 16384 >> (n-1)));\ + break; +# else +# define SCALE(n) \ + case n: for (k = 0; k <= 159; k++) \ + s[k] = GSM_MULT_R( s[k], 16384 >> (n-1) );\ + break; +# endif /* USE_FLOAT_MUL */ + + switch (scalauto) { + SCALE(1) + SCALE(2) + SCALE(3) + SCALE(4) + } +# undef SCALE + } +# ifdef USE_FLOAT_MUL + else for (k = 0; k <= 159; k++) float_s[k] = (float) s[k]; +# endif + + /* Compute the L_ACF[..]. + */ + { +# ifdef USE_FLOAT_MUL + register float * sp = float_s; + register float sl = *sp; + +# define STEP(k) L_ACF[k] += (longword)(sl * sp[ -(k) ]); +# else + word * sp = s; + word sl = *sp; + +# define STEP(k) L_ACF[k] += ((longword)sl * sp[ -(k) ]); +# endif + +# define NEXTI sl = *++sp + + + for (k = 9; k--; L_ACF[k] = 0) ; + + STEP (0); + NEXTI; + STEP(0); STEP(1); + NEXTI; + STEP(0); STEP(1); STEP(2); + NEXTI; + STEP(0); STEP(1); STEP(2); STEP(3); + NEXTI; + STEP(0); STEP(1); STEP(2); STEP(3); STEP(4); + NEXTI; + STEP(0); STEP(1); STEP(2); STEP(3); STEP(4); STEP(5); + NEXTI; + STEP(0); STEP(1); STEP(2); STEP(3); STEP(4); STEP(5); STEP(6); + NEXTI; + STEP(0); STEP(1); STEP(2); STEP(3); STEP(4); STEP(5); STEP(6); STEP(7); + + for (i = 8; i <= 159; i++) { + + NEXTI; + + STEP(0); + STEP(1); STEP(2); STEP(3); STEP(4); + STEP(5); STEP(6); STEP(7); STEP(8); + } + + for (k = 9; k--; L_ACF[k] <<= 1) ; + + } + /* Rescaling of the array s[0..159] + */ + if (scalauto > 0) { + assert(scalauto <= 4); + for (k = 160; k--; *s++ <<= scalauto) ; + } +} + +#if defined(USE_FLOAT_MUL) && defined(FAST) + +static void Fast_Autocorrelation ( + word * s, /* [0..159] IN/OUT */ + longword * L_ACF) /* [0..8] OUT */ +{ + register int k, i; + float f_L_ACF[9]; + float scale; + + float s_f[160]; + register float *sf = s_f; + + for (i = 0; i < 160; ++i) sf[i] = s[i]; + for (k = 0; k <= 8; k++) { + register float L_temp2 = 0; + register float *sfl = sf - k; + for (i = k; i < 160; ++i) L_temp2 += sf[i] * sfl[i]; + f_L_ACF[k] = L_temp2; + } + scale = MAX_LONGWORD / f_L_ACF[0]; + + for (k = 0; k <= 8; k++) { + L_ACF[k] = f_L_ACF[k] * scale; + } +} +#endif /* defined (USE_FLOAT_MUL) && defined (FAST) */ + +/* 4.2.5 */ + +static void Reflection_coefficients ( + longword * L_ACF, /* 0...8 IN */ + register word * r /* 0...7 OUT */ +) +{ + register int i, m, n; + register word temp; + word ACF[9]; /* 0..8 */ + word P[ 9]; /* 0..8 */ + word K[ 9]; /* 2..8 */ + + /* Schur recursion with 16 bits arithmetic. + */ + + if (L_ACF[0] == 0) { + for (i = 8; i--; *r++ = 0) ; + return; + } + + assert( L_ACF[0] != 0 ); + temp = gsm_norm( L_ACF[0] ); + + assert(temp >= 0 && temp < 32); + + /* ? overflow ? */ + for (i = 0; i <= 8; i++) ACF[i] = SASR_L( L_ACF[i] << temp, 16 ); + + /* Initialize array P[..] and K[..] for the recursion. + */ + + for (i = 1; i <= 7; i++) K[ i ] = ACF[ i ]; + for (i = 0; i <= 8; i++) P[ i ] = ACF[ i ]; + + /* Compute reflection coefficients + */ + for (n = 1; n <= 8; n++, r++) { + + temp = P[1]; + temp = GSM_ABS(temp); + if (P[0] < temp) { + for (i = n; i <= 8; i++) *r++ = 0; + return; + } + + *r = gsm_div( temp, P[0] ); + + assert(*r >= 0); + if (P[1] > 0) *r = -*r; /* r[n] = sub(0, r[n]) */ + assert (*r != MIN_WORD); + if (n == 8) return; + + /* Schur recursion + */ + temp = GSM_MULT_R( P[1], *r ); + P[0] = GSM_ADD( P[0], temp ); + + for (m = 1; m <= 8 - n; m++) { + temp = GSM_MULT_R( K[ m ], *r ); + P[m] = GSM_ADD( P[ m+1 ], temp ); + + temp = GSM_MULT_R( P[ m+1 ], *r ); + K[m] = GSM_ADD( K[ m ], temp ); + } + } +} + +/* 4.2.6 */ + +static void Transformation_to_Log_Area_Ratios ( + register word * r /* 0..7 IN/OUT */ +) +/* + * The following scaling for r[..] and LAR[..] has been used: + * + * r[..] = integer( real_r[..]*32768. ); -1 <= real_r < 1. + * LAR[..] = integer( real_LAR[..] * 16384 ); + * with -1.625 <= real_LAR <= 1.625 + */ +{ + register word temp; + register int i; + + + /* Computation of the LAR[0..7] from the r[0..7] + */ + for (i = 1; i <= 8; i++, r++) { + + temp = *r; + temp = GSM_ABS(temp); + assert(temp >= 0); + + if (temp < 22118) { + temp >>= 1; + } else if (temp < 31130) { + assert( temp >= 11059 ); + temp -= 11059; + } else { + assert( temp >= 26112 ); + temp -= 26112; + temp <<= 2; + } + + *r = *r < 0 ? -temp : temp; + assert( *r != MIN_WORD ); + } +} + +/* 4.2.7 */ + +static void Quantization_and_coding ( + register word * LAR /* [0..7] IN/OUT */ +) +{ + register word temp; + + /* This procedure needs four tables; the following equations + * give the optimum scaling for the constants: + * + * A[0..7] = integer( real_A[0..7] * 1024 ) + * B[0..7] = integer( real_B[0..7] * 512 ) + * MAC[0..7] = maximum of the LARc[0..7] + * MIC[0..7] = minimum of the LARc[0..7] + */ + +# undef STEP +# define STEP( A, B, MAC, MIC ) \ + temp = GSM_MULT( A, *LAR ); \ + temp = GSM_ADD( temp, B ); \ + temp = GSM_ADD( temp, 256 ); \ + temp = SASR_W( temp, 9 ); \ + *LAR = temp>MAC ? MAC - MIC : (temp<MIC ? 0 : temp - MIC); \ + LAR++; + + STEP( 20480, 0, 31, -32 ); + STEP( 20480, 0, 31, -32 ); + STEP( 20480, 2048, 15, -16 ); + STEP( 20480, -2560, 15, -16 ); + + STEP( 13964, 94, 7, -8 ); + STEP( 15360, -1792, 7, -8 ); + STEP( 8534, -341, 3, -4 ); + STEP( 9036, -1144, 3, -4 ); + +# undef STEP +} + +void Gsm_LPC_Analysis ( + struct gsm_state *S, + word * s, /* 0..159 signals IN/OUT */ + word * LARc) /* 0..7 LARc's OUT */ +{ + longword L_ACF[9]; + +#if defined(USE_FLOAT_MUL) && defined(FAST) + if (S->fast) Fast_Autocorrelation (s, L_ACF ); + else +#endif + Autocorrelation (s, L_ACF ); + Reflection_coefficients (L_ACF, LARc ); + Transformation_to_Log_Area_Ratios (LARc); + Quantization_and_coding (LARc); +} diff --git a/src/GSM610/preprocess.c b/src/GSM610/preprocess.c new file mode 100644 index 0000000..723e226 --- /dev/null +++ b/src/GSM610/preprocess.c @@ -0,0 +1,105 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +/* 4.2.0 .. 4.2.3 PREPROCESSING SECTION + * + * After A-law to linear conversion (or directly from the + * Ato D converter) the following scaling is assumed for + * input to the RPE-LTP algorithm: + * + * in: 0.1.....................12 + * S.v.v.v.v.v.v.v.v.v.v.v.v.*.*.* + * + * Where S is the sign bit, v a valid bit, and * a "don't care" bit. + * The original signal is called sop[..] + * + * out: 0.1................... 12 + * S.S.v.v.v.v.v.v.v.v.v.v.v.v.0.0 + */ + + +void Gsm_Preprocess ( + struct gsm_state * S, + word * s, + word * so ) /* [0..159] IN/OUT */ +{ + + word z1 = S->z1; + longword L_z2 = S->L_z2; + word mp = S->mp; + + word s1; + longword L_s2; + + longword L_temp; + + word msp, lsp; + word SO; + + register int k = 160; + + while (k--) { + + /* 4.2.1 Downscaling of the input signal + */ + SO = SASR_W( *s, 3 ) << 2; + s++; + + assert (SO >= -0x4000); /* downscaled by */ + assert (SO <= 0x3FFC); /* previous routine. */ + + + /* 4.2.2 Offset compensation + * + * This part implements a high-pass filter and requires extended + * arithmetic precision for the recursive part of this filter. + * The input of this procedure is the array so[0...159] and the + * output the array sof[ 0...159 ]. + */ + /* Compute the non-recursive part + */ + + s1 = SO - z1; /* s1 = gsm_sub( *so, z1 ); */ + z1 = SO; + + assert(s1 != MIN_WORD); + + /* Compute the recursive part + */ + L_s2 = s1; + L_s2 <<= 15; + + /* Execution of a 31 bv 16 bits multiplication + */ + + msp = SASR_L( L_z2, 15 ); + lsp = L_z2-((longword)msp<<15); /* gsm_L_sub(L_z2,(msp<<15)); */ + + L_s2 += GSM_MULT_R( lsp, 32735 ); + L_temp = (longword)msp * 32735; /* GSM_L_MULT(msp,32735) >> 1;*/ + L_z2 = GSM_L_ADD( L_temp, L_s2 ); + + /* Compute sof[k] with rounding + */ + L_temp = GSM_L_ADD( L_z2, 16384 ); + + /* 4.2.3 Preemphasis + */ + + msp = GSM_MULT_R( mp, -28180 ); + mp = SASR_L( L_temp, 15 ); + *so++ = GSM_ADD( mp, msp ); + } + + S->z1 = z1; + S->L_z2 = L_z2; + S->mp = mp; +} diff --git a/src/GSM610/rpe.c b/src/GSM610/rpe.c new file mode 100644 index 0000000..d8f931e --- /dev/null +++ b/src/GSM610/rpe.c @@ -0,0 +1,480 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +/* 4.2.13 .. 4.2.17 RPE ENCODING SECTION + */ + +/* 4.2.13 */ + +static void Weighting_filter ( + register word * e, /* signal [-5..0.39.44] IN */ + word * x /* signal [0..39] OUT */ +) +/* + * The coefficients of the weighting filter are stored in a table + * (see table 4.4). The following scaling is used: + * + * H[0..10] = integer( real_H[ 0..10] * 8192 ); + */ +{ + /* word wt[ 50 ]; */ + + register longword L_result; + register int k /* , i */ ; + + /* Initialization of a temporary working array wt[0...49] + */ + + /* for (k = 0; k <= 4; k++) wt[k] = 0; + * for (k = 5; k <= 44; k++) wt[k] = *e++; + * for (k = 45; k <= 49; k++) wt[k] = 0; + * + * (e[-5..-1] and e[40..44] are allocated by the caller, + * are initially zero and are not written anywhere.) + */ + e -= 5; + + /* Compute the signal x[0..39] + */ + for (k = 0; k <= 39; k++) { + + L_result = 8192 >> 1; + + /* for (i = 0; i <= 10; i++) { + * L_temp = GSM_L_MULT( wt[k+i], gsm_H[i] ); + * L_result = GSM_L_ADD( L_result, L_temp ); + * } + */ + +#undef STEP +#define STEP( i, H ) (e[ k + i ] * (longword)H) + + /* Every one of these multiplications is done twice -- + * but I don't see an elegant way to optimize this. + * Do you? + */ + +#ifdef STUPID_COMPILER + L_result += STEP( 0, -134 ) ; + L_result += STEP( 1, -374 ) ; + /* + STEP( 2, 0 ) */ + L_result += STEP( 3, 2054 ) ; + L_result += STEP( 4, 5741 ) ; + L_result += STEP( 5, 8192 ) ; + L_result += STEP( 6, 5741 ) ; + L_result += STEP( 7, 2054 ) ; + /* + STEP( 8, 0 ) */ + L_result += STEP( 9, -374 ) ; + L_result += STEP( 10, -134 ) ; +#else + L_result += + STEP( 0, -134 ) + + STEP( 1, -374 ) + /* + STEP( 2, 0 ) */ + + STEP( 3, 2054 ) + + STEP( 4, 5741 ) + + STEP( 5, 8192 ) + + STEP( 6, 5741 ) + + STEP( 7, 2054 ) + /* + STEP( 8, 0 ) */ + + STEP( 9, -374 ) + + STEP(10, -134 ) + ; +#endif + + /* L_result = GSM_L_ADD( L_result, L_result ); (* scaling(x2) *) + * L_result = GSM_L_ADD( L_result, L_result ); (* scaling(x4) *) + * + * x[k] = SASR( L_result, 16 ); + */ + + /* 2 adds vs. >>16 => 14, minus one shift to compensate for + * those we lost when replacing L_MULT by '*'. + */ + + L_result = SASR_L( L_result, 13 ); + x[k] = ( L_result < MIN_WORD ? MIN_WORD + : (L_result > MAX_WORD ? MAX_WORD : L_result )); + } +} + +/* 4.2.14 */ + +static void RPE_grid_selection ( + word * x, /* [0..39] IN */ + word * xM, /* [0..12] OUT */ + word * Mc_out /* OUT */ +) +/* + * The signal x[0..39] is used to select the RPE grid which is + * represented by Mc. + */ +{ + /* register word temp1; */ + register int /* m, */ i; + register longword L_result, L_temp; + longword EM; /* xxx should be L_EM? */ + word Mc; + + longword L_common_0_3; + + EM = 0; + Mc = 0; + + /* for (m = 0; m <= 3; m++) { + * L_result = 0; + * + * + * for (i = 0; i <= 12; i++) { + * + * temp1 = SASR_W( x[m + 3*i], 2 ); + * + * assert(temp1 != MIN_WORD); + * + * L_temp = GSM_L_MULT( temp1, temp1 ); + * L_result = GSM_L_ADD( L_temp, L_result ); + * } + * + * if (L_result > EM) { + * Mc = m; + * EM = L_result; + * } + * } + */ + +#undef STEP +#define STEP( m, i ) L_temp = SASR_W( x[m + 3 * i], 2 ); \ + L_result += L_temp * L_temp; + + /* common part of 0 and 3 */ + + L_result = 0; + STEP( 0, 1 ); STEP( 0, 2 ); STEP( 0, 3 ); STEP( 0, 4 ); + STEP( 0, 5 ); STEP( 0, 6 ); STEP( 0, 7 ); STEP( 0, 8 ); + STEP( 0, 9 ); STEP( 0, 10); STEP( 0, 11); STEP( 0, 12); + L_common_0_3 = L_result; + + /* i = 0 */ + + STEP( 0, 0 ); + L_result <<= 1; /* implicit in L_MULT */ + EM = L_result; + + /* i = 1 */ + + L_result = 0; + STEP( 1, 0 ); + STEP( 1, 1 ); STEP( 1, 2 ); STEP( 1, 3 ); STEP( 1, 4 ); + STEP( 1, 5 ); STEP( 1, 6 ); STEP( 1, 7 ); STEP( 1, 8 ); + STEP( 1, 9 ); STEP( 1, 10); STEP( 1, 11); STEP( 1, 12); + L_result <<= 1; + if (L_result > EM) { + Mc = 1; + EM = L_result; + } + + /* i = 2 */ + + L_result = 0; + STEP( 2, 0 ); + STEP( 2, 1 ); STEP( 2, 2 ); STEP( 2, 3 ); STEP( 2, 4 ); + STEP( 2, 5 ); STEP( 2, 6 ); STEP( 2, 7 ); STEP( 2, 8 ); + STEP( 2, 9 ); STEP( 2, 10); STEP( 2, 11); STEP( 2, 12); + L_result <<= 1; + if (L_result > EM) { + Mc = 2; + EM = L_result; + } + + /* i = 3 */ + + L_result = L_common_0_3; + STEP( 3, 12 ); + L_result <<= 1; + if (L_result > EM) { + Mc = 3; + EM = L_result; + } + + /**/ + + /* Down-sampling by a factor 3 to get the selected xM[0..12] + * RPE sequence. + */ + for (i = 0; i <= 12; i ++) xM[i] = x[Mc + 3*i]; + *Mc_out = Mc; +} + +/* 4.12.15 */ + +static void APCM_quantization_xmaxc_to_exp_mant ( + word xmaxc, /* IN */ + word * expon_out, /* OUT */ + word * mant_out ) /* OUT */ +{ + word expon, mant; + + /* Compute expononent and mantissa of the decoded version of xmaxc + */ + + expon = 0; + if (xmaxc > 15) expon = SASR_W(xmaxc, 3) - 1; + mant = xmaxc - (expon << 3); + + if (mant == 0) { + expon = -4; + mant = 7; + } + else { + while (mant <= 7) { + mant = mant << 1 | 1; + expon--; + } + mant -= 8; + } + + assert( expon >= -4 && expon <= 6 ); + assert( mant >= 0 && mant <= 7 ); + + *expon_out = expon; + *mant_out = mant; +} + +static void APCM_quantization ( + word * xM, /* [0..12] IN */ + word * xMc, /* [0..12] OUT */ + word * mant_out, /* OUT */ + word * expon_out, /* OUT */ + word * xmaxc_out /* OUT */ +) +{ + int i, itest; + + word xmax, xmaxc, temp, temp1, temp2; + word expon, mant; + + + /* Find the maximum absolute value xmax of xM[0..12]. + */ + + xmax = 0; + for (i = 0; i <= 12; i++) { + temp = xM[i]; + temp = GSM_ABS(temp); + if (temp > xmax) xmax = temp; + } + + /* Qantizing and coding of xmax to get xmaxc. + */ + + expon = 0; + temp = SASR_W( xmax, 9 ); + itest = 0; + + for (i = 0; i <= 5; i++) { + + itest |= (temp <= 0); + temp = SASR_W( temp, 1 ); + + assert(expon <= 5); + if (itest == 0) expon++; /* expon = add (expon, 1) */ + } + + assert(expon <= 6 && expon >= 0); + temp = expon + 5; + + assert(temp <= 11 && temp >= 0); + xmaxc = gsm_add( SASR_W(xmax, temp), (word) (expon << 3) ); + + /* Quantizing and coding of the xM[0..12] RPE sequence + * to get the xMc[0..12] + */ + + APCM_quantization_xmaxc_to_exp_mant( xmaxc, &expon, &mant ); + + /* This computation uses the fact that the decoded version of xmaxc + * can be calculated by using the expononent and the mantissa part of + * xmaxc (logarithmic table). + * So, this method avoids any division and uses only a scaling + * of the RPE samples by a function of the expononent. A direct + * multiplication by the inverse of the mantissa (NRFAC[0..7] + * found in table 4.5) gives the 3 bit coded version xMc[0..12] + * of the RPE samples. + */ + + + /* Direct computation of xMc[0..12] using table 4.5 + */ + + assert( expon <= 4096 && expon >= -4096); + assert( mant >= 0 && mant <= 7 ); + + temp1 = 6 - expon; /* normalization by the expononent */ + temp2 = gsm_NRFAC[ mant ]; /* inverse mantissa */ + + for (i = 0; i <= 12; i++) { + + assert(temp1 >= 0 && temp1 < 16); + + temp = xM[i] << temp1; + temp = GSM_MULT( temp, temp2 ); + temp = SASR_W(temp, 12); + xMc[i] = temp + 4; /* see note below */ + } + + /* NOTE: This equation is used to make all the xMc[i] positive. + */ + + *mant_out = mant; + *expon_out = expon; + *xmaxc_out = xmaxc; +} + +/* 4.2.16 */ + +static void APCM_inverse_quantization ( + register word * xMc, /* [0..12] IN */ + word mant, + word expon, + register word * xMp) /* [0..12] OUT */ +/* + * This part is for decoding the RPE sequence of coded xMc[0..12] + * samples to obtain the xMp[0..12] array. Table 4.6 is used to get + * the mantissa of xmaxc (FAC[0..7]). + */ +{ + int i; + word temp, temp1, temp2, temp3; + + assert( mant >= 0 && mant <= 7 ); + + temp1 = gsm_FAC[ mant ]; /* see 4.2-15 for mant */ + temp2 = gsm_sub( 6, expon ); /* see 4.2-15 for exp */ + temp3 = gsm_asl( 1, gsm_sub( temp2, 1 )); + + for (i = 13; i--;) { + + assert( *xMc <= 7 && *xMc >= 0 ); /* 3 bit unsigned */ + + /* temp = gsm_sub( *xMc++ << 1, 7 ); */ + temp = (*xMc++ << 1) - 7; /* restore sign */ + assert( temp <= 7 && temp >= -7 ); /* 4 bit signed */ + + temp <<= 12; /* 16 bit signed */ + temp = GSM_MULT_R( temp1, temp ); + temp = GSM_ADD( temp, temp3 ); + *xMp++ = gsm_asr( temp, temp2 ); + } +} + +/* 4.2.17 */ + +static void RPE_grid_positioning ( + word Mc, /* grid position IN */ + register word * xMp, /* [0..12] IN */ + register word * ep /* [0..39] OUT */ +) +/* + * This procedure computes the reconstructed long term residual signal + * ep[0..39] for the LTP analysis filter. The inputs are the Mc + * which is the grid position selection and the xMp[0..12] decoded + * RPE samples which are upsampled by a factor of 3 by inserting zero + * values. + */ +{ + int i = 13; + + assert(0 <= Mc && Mc <= 3); + + switch (Mc) { + case 3: *ep++ = 0; + case 2: do { + *ep++ = 0; + case 1: *ep++ = 0; + case 0: *ep++ = *xMp++; + } while (--i); + } + while (++Mc < 4) *ep++ = 0; + + /* + + int i, k; + for (k = 0; k <= 39; k++) ep[k] = 0; + for (i = 0; i <= 12; i++) { + ep[ Mc + (3*i) ] = xMp[i]; + } + */ +} + +/* 4.2.18 */ + +/* This procedure adds the reconstructed long term residual signal + * ep[0..39] to the estimated signal dpp[0..39] from the long term + * analysis filter to compute the reconstructed short term residual + * signal dp[-40..-1]; also the reconstructed short term residual + * array dp[-120..-41] is updated. + */ + +#if 0 /* Has been inlined in code.c */ +void Gsm_Update_of_reconstructed_short_time_residual_signal ( + word * dpp, /* [0...39] IN */ + word * ep, /* [0...39] IN */ + word * dp) /* [-120...-1] IN/OUT */ +{ + int k; + + for (k = 0; k <= 79; k++) + dp[ -120 + k ] = dp[ -80 + k ]; + + for (k = 0; k <= 39; k++) + dp[ -40 + k ] = gsm_add( ep[k], dpp[k] ); +} +#endif /* Has been inlined in code.c */ + +void Gsm_RPE_Encoding ( + /*-struct gsm_state * S,-*/ + + word * e, /* -5..-1][0..39][40..44 IN/OUT */ + word * xmaxc, /* OUT */ + word * Mc, /* OUT */ + word * xMc) /* [0..12] OUT */ +{ + word x[40]; + word xM[13], xMp[13]; + word mant, expon; + + Weighting_filter(e, x); + RPE_grid_selection(x, xM, Mc); + + APCM_quantization( xM, xMc, &mant, &expon, xmaxc); + APCM_inverse_quantization( xMc, mant, expon, xMp); + + RPE_grid_positioning( *Mc, xMp, e ); + +} + +void Gsm_RPE_Decoding ( + /*-struct gsm_state * S,-*/ + + word xmaxcr, + word Mcr, + word * xMcr, /* [0..12], 3 bits IN */ + word * erp /* [0..39] OUT */ +) +{ + word expon, mant; + word xMp[ 13 ]; + + APCM_quantization_xmaxc_to_exp_mant( xmaxcr, &expon, &mant ); + APCM_inverse_quantization( xMcr, mant, expon, xMp ); + RPE_grid_positioning( Mcr, xMp, erp ); + +} diff --git a/src/GSM610/short_term.c b/src/GSM610/short_term.c new file mode 100644 index 0000000..9048563 --- /dev/null +++ b/src/GSM610/short_term.c @@ -0,0 +1,417 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#include <stdio.h> +#include <assert.h> + +#include "gsm610_priv.h" + +/* + * SHORT TERM ANALYSIS FILTERING SECTION + */ + +/* 4.2.8 */ + +static void Decoding_of_the_coded_Log_Area_Ratios ( + word * LARc, /* coded log area ratio [0..7] IN */ + word * LARpp) /* out: decoded .. */ +{ + register word temp1 /* , temp2 */; + + /* This procedure requires for efficient implementation + * two tables. + * + * INVA[1..8] = integer( (32768 * 8) / real_A[1..8]) + * MIC[1..8] = minimum value of the LARc[1..8] + */ + + /* Compute the LARpp[1..8] + */ + + /* for (i = 1; i <= 8; i++, B++, MIC++, INVA++, LARc++, LARpp++) { + * + * temp1 = GSM_ADD( *LARc, *MIC ) << 10; + * temp2 = *B << 1; + * temp1 = GSM_SUB( temp1, temp2 ); + * + * assert(*INVA != MIN_WORD); + * + * temp1 = GSM_MULT_R( *INVA, temp1 ); + * *LARpp = GSM_ADD( temp1, temp1 ); + * } + */ + +#undef STEP +#define STEP( B, MIC, INVA ) \ + temp1 = GSM_ADD( *LARc++, MIC ) << 10; \ + temp1 = GSM_SUB( temp1, B << 1 ); \ + temp1 = GSM_MULT_R( INVA, temp1 ); \ + *LARpp++ = GSM_ADD( temp1, temp1 ); + + STEP( 0, -32, 13107 ); + STEP( 0, -32, 13107 ); + STEP( 2048, -16, 13107 ); + STEP( -2560, -16, 13107 ); + + STEP( 94, -8, 19223 ); + STEP( -1792, -8, 17476 ); + STEP( -341, -4, 31454 ); + STEP( -1144, -4, 29708 ); + + /* NOTE: the addition of *MIC is used to restore + * the sign of *LARc. + */ +} + +/* 4.2.9 */ +/* Computation of the quantized reflection coefficients + */ + +/* 4.2.9.1 Interpolation of the LARpp[1..8] to get the LARp[1..8] + */ + +/* + * Within each frame of 160 analyzed speech samples the short term + * analysis and synthesis filters operate with four different sets of + * coefficients, derived from the previous set of decoded LARs(LARpp(j-1)) + * and the actual set of decoded LARs (LARpp(j)) + * + * (Initial value: LARpp(j-1)[1..8] = 0.) + */ + +static void Coefficients_0_12 ( + register word * LARpp_j_1, + register word * LARpp_j, + register word * LARp) +{ + register int i; + + for (i = 1; i <= 8; i++, LARp++, LARpp_j_1++, LARpp_j++) { + *LARp = GSM_ADD( SASR_W( *LARpp_j_1, 2 ), SASR_W( *LARpp_j, 2 )); + *LARp = GSM_ADD( *LARp, SASR_W( *LARpp_j_1, 1)); + } +} + +static void Coefficients_13_26 ( + register word * LARpp_j_1, + register word * LARpp_j, + register word * LARp) +{ + register int i; + for (i = 1; i <= 8; i++, LARpp_j_1++, LARpp_j++, LARp++) { + *LARp = GSM_ADD( SASR_W( *LARpp_j_1, 1), SASR_W( *LARpp_j, 1 )); + } +} + +static void Coefficients_27_39 ( + register word * LARpp_j_1, + register word * LARpp_j, + register word * LARp) +{ + register int i; + + for (i = 1; i <= 8; i++, LARpp_j_1++, LARpp_j++, LARp++) { + *LARp = GSM_ADD( SASR_W( *LARpp_j_1, 2 ), SASR_W( *LARpp_j, 2 )); + *LARp = GSM_ADD( *LARp, SASR_W( *LARpp_j, 1 )); + } +} + + +static void Coefficients_40_159 ( + register word * LARpp_j, + register word * LARp) +{ + register int i; + + for (i = 1; i <= 8; i++, LARp++, LARpp_j++) + *LARp = *LARpp_j; +} + +/* 4.2.9.2 */ + +static void LARp_to_rp ( + register word * LARp) /* [0..7] IN/OUT */ +/* + * The input of this procedure is the interpolated LARp[0..7] array. + * The reflection coefficients, rp[i], are used in the analysis + * filter and in the synthesis filter. + */ +{ + register int i; + register word temp; + + for (i = 1; i <= 8; i++, LARp++) { + + /* temp = GSM_ABS( *LARp ); + * + * if (temp < 11059) temp <<= 1; + * else if (temp < 20070) temp += 11059; + * else temp = GSM_ADD( temp >> 2, 26112 ); + * + * *LARp = *LARp < 0 ? -temp : temp; + */ + + if (*LARp < 0) { + temp = *LARp == MIN_WORD ? MAX_WORD : -(*LARp); + *LARp = - ((temp < 11059) ? temp << 1 + : ((temp < 20070) ? temp + 11059 + : GSM_ADD( (word) (temp >> 2), (word) 26112 ))); + } else { + temp = *LARp; + *LARp = (temp < 11059) ? temp << 1 + : ((temp < 20070) ? temp + 11059 + : GSM_ADD( (word) (temp >> 2), (word) 26112 )); + } + } +} + + +/* 4.2.10 */ +static void Short_term_analysis_filtering ( + struct gsm_state * S, + register word * rp, /* [0..7] IN */ + register int k_n, /* k_end - k_start */ + register word * s /* [0..n-1] IN/OUT */ +) +/* + * This procedure computes the short term residual signal d[..] to be fed + * to the RPE-LTP loop from the s[..] signal and from the local rp[..] + * array (quantized reflection coefficients). As the call of this + * procedure can be done in many ways (see the interpolation of the LAR + * coefficient), it is assumed that the computation begins with index + * k_start (for arrays d[..] and s[..]) and stops with index k_end + * (k_start and k_end are defined in 4.2.9.1). This procedure also + * needs to keep the array u[0..7] in memory for each call. + */ +{ + register word * u = S->u; + register int i; + register word di, zzz, ui, sav, rpi; + + for (; k_n--; s++) { + + di = sav = *s; + + for (i = 0; i < 8; i++) { /* YYY */ + + ui = u[i]; + rpi = rp[i]; + u[i] = sav; + + zzz = GSM_MULT_R(rpi, di); + sav = GSM_ADD( ui, zzz); + + zzz = GSM_MULT_R(rpi, ui); + di = GSM_ADD( di, zzz ); + } + + *s = di; + } +} + +#if defined(USE_FLOAT_MUL) && defined(FAST) + +static void Fast_Short_term_analysis_filtering ( + struct gsm_state * S, + register word * rp, /* [0..7] IN */ + register int k_n, /* k_end - k_start */ + register word * s /* [0..n-1] IN/OUT */ +) +{ + register word * u = S->u; + register int i; + + float uf[8], + rpf[8]; + + register float scalef = 3.0517578125e-5; + register float sav, di, temp; + + for (i = 0; i < 8; ++i) { + uf[i] = u[i]; + rpf[i] = rp[i] * scalef; + } + for (; k_n--; s++) { + sav = di = *s; + for (i = 0; i < 8; ++i) { + register float rpfi = rpf[i]; + register float ufi = uf[i]; + + uf[i] = sav; + temp = rpfi * di + ufi; + di += rpfi * ufi; + sav = temp; + } + *s = di; + } + for (i = 0; i < 8; ++i) u[i] = uf[i]; +} +#endif /* ! (defined (USE_FLOAT_MUL) && defined (FAST)) */ + +static void Short_term_synthesis_filtering ( + struct gsm_state * S, + register word * rrp, /* [0..7] IN */ + register int k, /* k_end - k_start */ + register word * wt, /* [0..k-1] IN */ + register word * sr /* [0..k-1] OUT */ +) +{ + register word * v = S->v; + register int i; + register word sri, tmp1, tmp2; + + while (k--) { + sri = *wt++; + for (i = 8; i--;) { + + /* sri = GSM_SUB( sri, gsm_mult_r( rrp[i], v[i] ) ); + */ + tmp1 = rrp[i]; + tmp2 = v[i]; + tmp2 = ( tmp1 == MIN_WORD && tmp2 == MIN_WORD + ? MAX_WORD + : 0x0FFFF & (( (longword)tmp1 * (longword)tmp2 + + 16384) >> 15)) ; + + sri = GSM_SUB( sri, tmp2 ); + + /* v[i+1] = GSM_ADD( v[i], gsm_mult_r( rrp[i], sri ) ); + */ + tmp1 = ( tmp1 == MIN_WORD && sri == MIN_WORD + ? MAX_WORD + : 0x0FFFF & (( (longword)tmp1 * (longword)sri + + 16384) >> 15)) ; + + v[i+1] = GSM_ADD( v[i], tmp1); + } + *sr++ = v[0] = sri; + } +} + + +#if defined(FAST) && defined(USE_FLOAT_MUL) + +static void Fast_Short_term_synthesis_filtering ( + struct gsm_state * S, + register word * rrp, /* [0..7] IN */ + register int k, /* k_end - k_start */ + register word * wt, /* [0..k-1] IN */ + register word * sr /* [0..k-1] OUT */ +) +{ + register word * v = S->v; + register int i; + + float va[9], rrpa[8]; + register float scalef = 3.0517578125e-5, temp; + + for (i = 0; i < 8; ++i) { + va[i] = v[i]; + rrpa[i] = (float)rrp[i] * scalef; + } + while (k--) { + register float sri = *wt++; + for (i = 8; i--;) { + sri -= rrpa[i] * va[i]; + if (sri < -32768.) sri = -32768.; + else if (sri > 32767.) sri = 32767.; + + temp = va[i] + rrpa[i] * sri; + if (temp < -32768.) temp = -32768.; + else if (temp > 32767.) temp = 32767.; + va[i+1] = temp; + } + *sr++ = va[0] = sri; + } + for (i = 0; i < 9; ++i) v[i] = va[i]; +} + +#endif /* defined(FAST) && defined(USE_FLOAT_MUL) */ + +void Gsm_Short_Term_Analysis_Filter ( + + struct gsm_state * S, + + word * LARc, /* coded log area ratio [0..7] IN */ + word * s /* signal [0..159] IN/OUT */ +) +{ + word * LARpp_j = S->LARpp[ S->j ]; + word * LARpp_j_1 = S->LARpp[ S->j ^= 1 ]; + + word LARp[8]; + +#undef FILTER +#if defined(FAST) && defined(USE_FLOAT_MUL) +# define FILTER (* (S->fast \ + ? Fast_Short_term_analysis_filtering \ + : Short_term_analysis_filtering )) + +#else +# define FILTER Short_term_analysis_filtering +#endif + + Decoding_of_the_coded_Log_Area_Ratios( LARc, LARpp_j ); + + Coefficients_0_12( LARpp_j_1, LARpp_j, LARp ); + LARp_to_rp( LARp ); + FILTER( S, LARp, 13, s); + + Coefficients_13_26( LARpp_j_1, LARpp_j, LARp); + LARp_to_rp( LARp ); + FILTER( S, LARp, 14, s + 13); + + Coefficients_27_39( LARpp_j_1, LARpp_j, LARp); + LARp_to_rp( LARp ); + FILTER( S, LARp, 13, s + 27); + + Coefficients_40_159( LARpp_j, LARp); + LARp_to_rp( LARp ); + FILTER( S, LARp, 120, s + 40); +} + +void Gsm_Short_Term_Synthesis_Filter ( + struct gsm_state * S, + + word * LARcr, /* received log area ratios [0..7] IN */ + word * wt, /* received d [0..159] IN */ + + word * s /* signal s [0..159] OUT */ +) +{ + word * LARpp_j = S->LARpp[ S->j ]; + word * LARpp_j_1 = S->LARpp[ S->j ^=1 ]; + + word LARp[8]; + +#undef FILTER +#if defined(FAST) && defined(USE_FLOAT_MUL) + +# define FILTER (* (S->fast \ + ? Fast_Short_term_synthesis_filtering \ + : Short_term_synthesis_filtering )) +#else +# define FILTER Short_term_synthesis_filtering +#endif + + Decoding_of_the_coded_Log_Area_Ratios( LARcr, LARpp_j ); + + Coefficients_0_12( LARpp_j_1, LARpp_j, LARp ); + LARp_to_rp( LARp ); + FILTER( S, LARp, 13, wt, s ); + + Coefficients_13_26( LARpp_j_1, LARpp_j, LARp); + LARp_to_rp( LARp ); + FILTER( S, LARp, 14, wt + 13, s + 13 ); + + Coefficients_27_39( LARpp_j_1, LARpp_j, LARp); + LARp_to_rp( LARp ); + FILTER( S, LARp, 13, wt + 27, s + 27 ); + + Coefficients_40_159( LARpp_j, LARp ); + LARp_to_rp( LARp ); + FILTER(S, LARp, 120, wt + 40, s + 40); +} diff --git a/src/GSM610/table.c b/src/GSM610/table.c new file mode 100644 index 0000000..8b83f78 --- /dev/null +++ b/src/GSM610/table.c @@ -0,0 +1,60 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +/* Most of these tables are inlined at their point of use. + */ + +/* 4.4 TABLES USED IN THE FIXED POINT IMPLEMENTATION OF THE RPE-LTP + * CODER AND DECODER + * + * (Most of them inlined, so watch out.) + */ + +#define GSM_TABLE_C +#include "gsm610_priv.h" + +/* Table 4.1 Quantization of the Log.-Area Ratios + */ +/* i 1 2 3 4 5 6 7 8 */ +word gsm_A[8] = {20480, 20480, 20480, 20480, 13964, 15360, 8534, 9036}; +word gsm_B[8] = { 0, 0, 2048, -2560, 94, -1792, -341, -1144}; +word gsm_MIC[8] = { -32, -32, -16, -16, -8, -8, -4, -4 }; +word gsm_MAC[8] = { 31, 31, 15, 15, 7, 7, 3, 3 }; + + +/* Table 4.2 Tabulation of 1/A[1..8] + */ +word gsm_INVA[8]={ 13107, 13107, 13107, 13107, 19223, 17476, 31454, 29708 }; + + +/* Table 4.3a Decision level of the LTP gain quantizer + */ +/* bc 0 1 2 3 */ +word gsm_DLB[4] = { 6554, 16384, 26214, 32767 }; + + +/* Table 4.3b Quantization levels of the LTP gain quantizer + */ +/* bc 0 1 2 3 */ +word gsm_QLB[4] = { 3277, 11469, 21299, 32767 }; + + +/* Table 4.4 Coefficients of the weighting filter + */ +/* i 0 1 2 3 4 5 6 7 8 9 10 */ +word gsm_H[11] = {-134, -374, 0, 2054, 5741, 8192, 5741, 2054, 0, -374, -134 }; + + +/* Table 4.5 Normalized inverse mantissa used to compute xM/xmax + */ +/* i 0 1 2 3 4 5 6 7 */ +word gsm_NRFAC[8] = { 29128, 26215, 23832, 21846, 20165, 18725, 17476, 16384 }; + + +/* Table 4.6 Normalized direct mantissa used to compute xM/xmax + */ +/* i 0 1 2 3 4 5 6 7 */ +word gsm_FAC[8] = { 18431, 20479, 22527, 24575, 26623, 28671, 30719, 32767 }; diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..7834e28 --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,127 @@ +## Process this file with automake to produce Makefile.in + +AUTOMAKE_OPTIONS = subdir-objects + +INCLUDES = @EXTERNAL_CFLAGS@ + +lib_LTLIBRARIES = libsndfile.la +include_HEADERS = sndfile.hh +nodist_include_HEADERS = sndfile.h + +noinst_LTLIBRARIES = GSM610/libgsm.la G72x/libg72x.la libcommon.la + +OS_SPECIFIC_CFLAGS = @OS_SPECIFIC_CFLAGS@ +OS_SPECIFIC_LINKS = @OS_SPECIFIC_LINKS@ + +SYMBOL_FILES = Symbols.gnu-binutils Symbols.darwin libsndfile-1.def Symbols.os2 Symbols.static + +EXTRA_DIST = sndfile.h.in config.h.in test_endswap.tpl test_endswap.def \ + $(SYMBOL_FILES) create_symbols_file.py binheader_writef_check.py \ + GSM610/README GSM610/COPYRIGHT GSM610/ChangeLog \ + G72x/README G72x/README.original G72x/ChangeLog \ + make-static-lib-hidden-privates.sh + +noinst_HEADERS = common.h sfconfig.h sfendian.h wav_w64.h sf_unistd.h ogg.h chanmap.h + +check_PROGRAMS = test_main G72x/g72x_test + +COMMON = common.c file_io.c command.c pcm.c ulaw.c alaw.c float32.c \ + double64.c ima_adpcm.c ms_adpcm.c gsm610.c dwvw.c vox_adpcm.c \ + interleave.c strings.c dither.c broadcast.c audio_detect.c \ + ima_oki_adpcm.c ima_oki_adpcm.h chunk.c ogg.c chanmap.c \ + windows.c id3.c $(WIN_VERSION_FILE) + +FILESPECIFIC = sndfile.c aiff.c au.c avr.c caf.c dwd.c flac.c g72x.c htk.c ircam.c \ + macbinary3.c macos.c mat4.c mat5.c nist.c paf.c pvf.c raw.c rx2.c sd2.c \ + sds.c svx.c txw.c voc.c wve.c w64.c wav_w64.c wav.c xi.c mpc2k.c rf64.c \ + ogg_vorbis.c ogg_speex.c ogg_pcm.c + +CLEANFILES = *~ + +if USE_WIN_VERSION_FILE +WIN_VERSION_FILE = version-metadata.rc +else +WIN_VERSION_FILE = +endif + +#=============================================================================== +# MinGW requires -no-undefined if a DLL is to be built. +libsndfile_la_LDFLAGS = -no-undefined -version-info @SHARED_VERSION_INFO@ @SHLIB_VERSION_ARG@ +libsndfile_la_SOURCES = $(FILESPECIFIC) $(noinst_HEADERS) +nodist_libsndfile_la_SOURCES = $(nodist_include_HEADERS) +libsndfile_la_LIBADD = libcommon.la GSM610/libgsm.la G72x/libg72x.la \ + @EXTERNAL_LIBS@ -lm + +libcommon_la_SOURCES = $(COMMON) + +#====================================================================== +# Subdir libraries. + +GSM610_libgsm_la_SOURCES = GSM610/config.h GSM610/gsm.h GSM610/gsm610_priv.h \ + GSM610/add.c GSM610/code.c GSM610/decode.c GSM610/gsm_create.c \ + GSM610/gsm_decode.c GSM610/gsm_destroy.c GSM610/gsm_encode.c \ + GSM610/gsm_option.c GSM610/long_term.c GSM610/lpc.c GSM610/preprocess.c \ + GSM610/rpe.c GSM610/short_term.c GSM610/table.c + +G72x_libg72x_la_SOURCES = $(COMMON)G72x/g72x.h G72x/g72x_priv.h \ + G72x/g721.c G72x/g723_16.c G72x/g723_24.c G72x/g723_40.c G72x/g72x.c + +#====================================================================== +# Test programs. + +test_main_SOURCES = test_main.c test_main.h test_conversions.c test_float.c test_endswap.c \ + test_audio_detect.c test_log_printf.c test_file_io.c test_ima_oki_adpcm.c \ + test_strncpy_crlf.c test_broadcast_var.c +test_main_LDADD = libcommon.la + +G72x_g72x_test_SOURCES = G72x/g72x_test.c +G72x_g72x_test_LDADD = G72x/libg72x.la + +test_endswap.c: test_endswap.def test_endswap.tpl + autogen --writable test_endswap.def + +genfiles : test_endswap.c $(SYMBOL_FILES) + +check : + @if [ -x /usr/bin/python ]; 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./test_main$(EXEEXT) + +# Need this target to force building of test programs. +checkprograms : $(check_PROGRAMS) + +#====================================================================== +# Generate an OS specific Symbols files. This is done when the author +# builds the distribution tarball. There should be not need for the +# end user to create these files. + +Symbols.gnu-binutils: create_symbols_file.py + ./create_symbols_file.py linux $(VERSION) > $@ + +Symbols.darwin: create_symbols_file.py + ./create_symbols_file.py darwin $(VERSION) > $@ + +libsndfile-1.def: create_symbols_file.py + ./create_symbols_file.py win32 $(VERSION) > $@ + +Symbols.os2: create_symbols_file.py + ./create_symbols_file.py os2 $(VERSION) > $@ + +Symbols.static: create_symbols_file.py + ./create_symbols_file.py static $(VERSION) > $@ + +# Fake dependancy to force the creation of these files. +sndfile.o : $(SYMBOL_FILES) + +#====================================================================== +# Building windows resource files (if needed). + +.rc.lo: + $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --tag=RC --mode=compile $(RC) $(RCFLAGS) $< -o $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/Symbols.darwin b/src/Symbols.darwin new file mode 100644 index 0000000..a671460 --- /dev/null +++ b/src/Symbols.darwin @@ -0,0 +1,37 @@ +# Auto-generated by create_symbols_file.py + +_sf_command +_sf_open +_sf_close +_sf_seek +_sf_error +_sf_perror +_sf_error_str +_sf_error_number +_sf_format_check +_sf_read_raw +_sf_readf_short +_sf_readf_int +_sf_readf_float +_sf_readf_double +_sf_read_short +_sf_read_int +_sf_read_float +_sf_read_double +_sf_write_raw +_sf_writef_short +_sf_writef_int +_sf_writef_float +_sf_writef_double +_sf_write_short +_sf_write_int +_sf_write_float +_sf_write_double +_sf_strerror +_sf_get_string +_sf_set_string +_sf_version_string +_sf_open_fd +_sf_open_virtual +_sf_write_sync + diff --git a/src/Symbols.gnu-binutils b/src/Symbols.gnu-binutils new file mode 100644 index 0000000..93da6d6 --- /dev/null +++ b/src/Symbols.gnu-binutils @@ -0,0 +1,43 @@ +# Auto-generated by create_symbols_file.py + +libsndfile.so.1.0 +{ + global: + sf_command ; + sf_open ; + sf_close ; + sf_seek ; + sf_error ; + sf_perror ; + sf_error_str ; + sf_error_number ; + sf_format_check ; + sf_read_raw ; + sf_readf_short ; + sf_readf_int ; + sf_readf_float ; + sf_readf_double ; + sf_read_short ; + sf_read_int ; + sf_read_float ; + sf_read_double ; + sf_write_raw ; + sf_writef_short ; + sf_writef_int ; + sf_writef_float ; + sf_writef_double ; + sf_write_short ; + sf_write_int ; + sf_write_float ; + sf_write_double ; + sf_strerror ; + sf_get_string ; + sf_set_string ; + sf_version_string ; + sf_open_fd ; + sf_open_virtual ; + sf_write_sync ; + local: + * ; +} ; + diff --git a/src/Symbols.os2 b/src/Symbols.os2 new file mode 100644 index 0000000..118ceba --- /dev/null +++ b/src/Symbols.os2 @@ -0,0 +1,43 @@ +; Auto-generated by create_symbols_file.py + +LIBRARY sndfile1 +INITINSTANCE TERMINSTANCE +CODE PRELOAD MOVEABLE DISCARDABLE +DATA PRELOAD MOVEABLE MULTIPLE NONSHARED +EXPORTS + +_sf_command @1 +_sf_open @2 +_sf_close @3 +_sf_seek @4 +_sf_error @7 +_sf_perror @8 +_sf_error_str @9 +_sf_error_number @10 +_sf_format_check @11 +_sf_read_raw @16 +_sf_readf_short @17 +_sf_readf_int @18 +_sf_readf_float @19 +_sf_readf_double @20 +_sf_read_short @21 +_sf_read_int @22 +_sf_read_float @23 +_sf_read_double @24 +_sf_write_raw @32 +_sf_writef_short @33 +_sf_writef_int @34 +_sf_writef_float @35 +_sf_writef_double @36 +_sf_write_short @37 +_sf_write_int @38 +_sf_write_float @39 +_sf_write_double @40 +_sf_strerror @50 +_sf_get_string @60 +_sf_set_string @61 +_sf_version_string @68 +_sf_open_fd @70 +_sf_open_virtual @80 +_sf_write_sync @90 + diff --git a/src/Symbols.static b/src/Symbols.static new file mode 100644 index 0000000..a0e8d62 --- /dev/null +++ b/src/Symbols.static @@ -0,0 +1,35 @@ +sf_command +sf_open +sf_close +sf_seek +sf_error +sf_perror +sf_error_str +sf_error_number +sf_format_check +sf_read_raw +sf_readf_short +sf_readf_int +sf_readf_float +sf_readf_double +sf_read_short +sf_read_int +sf_read_float +sf_read_double +sf_write_raw +sf_writef_short +sf_writef_int +sf_writef_float +sf_writef_double +sf_write_short +sf_write_int +sf_write_float +sf_write_double +sf_strerror +sf_get_string +sf_set_string +sf_version_string +sf_open_fd +sf_wchar_open +sf_open_virtual +sf_write_sync diff --git a/src/aiff.c b/src/aiff.c new file mode 100644 index 0000000..0113ba6 --- /dev/null +++ b/src/aiff.c @@ -0,0 +1,1738 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2005 David Viens <davidv@plogue.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <ctype.h> +#include <inttypes.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "chanmap.h" + +/*------------------------------------------------------------------------------ + * Macros to handle big/little endian issues. + */ + +#define FORM_MARKER (MAKE_MARKER ('F', 'O', 'R', 'M')) +#define AIFF_MARKER (MAKE_MARKER ('A', 'I', 'F', 'F')) +#define AIFC_MARKER (MAKE_MARKER ('A', 'I', 'F', 'C')) +#define COMM_MARKER (MAKE_MARKER ('C', 'O', 'M', 'M')) +#define SSND_MARKER (MAKE_MARKER ('S', 'S', 'N', 'D')) +#define MARK_MARKER (MAKE_MARKER ('M', 'A', 'R', 'K')) +#define INST_MARKER (MAKE_MARKER ('I', 'N', 'S', 'T')) +#define APPL_MARKER (MAKE_MARKER ('A', 'P', 'P', 'L')) +#define CHAN_MARKER (MAKE_MARKER ('C', 'H', 'A', 'N')) + +#define c_MARKER (MAKE_MARKER ('(', 'c', ')', ' ')) +#define NAME_MARKER (MAKE_MARKER ('N', 'A', 'M', 'E')) +#define AUTH_MARKER (MAKE_MARKER ('A', 'U', 'T', 'H')) +#define ANNO_MARKER (MAKE_MARKER ('A', 'N', 'N', 'O')) +#define COMT_MARKER (MAKE_MARKER ('C', 'O', 'M', 'T')) +#define FVER_MARKER (MAKE_MARKER ('F', 'V', 'E', 'R')) +#define SFX_MARKER (MAKE_MARKER ('S', 'F', 'X', '!')) + +#define PEAK_MARKER (MAKE_MARKER ('P', 'E', 'A', 'K')) +#define basc_MARKER (MAKE_MARKER ('b', 'a', 's', 'c')) + +/* Supported AIFC encodings.*/ +#define NONE_MARKER (MAKE_MARKER ('N', 'O', 'N', 'E')) +#define sowt_MARKER (MAKE_MARKER ('s', 'o', 'w', 't')) +#define twos_MARKER (MAKE_MARKER ('t', 'w', 'o', 's')) +#define raw_MARKER (MAKE_MARKER ('r', 'a', 'w', ' ')) +#define in24_MARKER (MAKE_MARKER ('i', 'n', '2', '4')) +#define ni24_MARKER (MAKE_MARKER ('4', '2', 'n', '1')) +#define in32_MARKER (MAKE_MARKER ('i', 'n', '3', '2')) +#define ni32_MARKER (MAKE_MARKER ('2', '3', 'n', 'i')) + +#define fl32_MARKER (MAKE_MARKER ('f', 'l', '3', '2')) +#define FL32_MARKER (MAKE_MARKER ('F', 'L', '3', '2')) +#define fl64_MARKER (MAKE_MARKER ('f', 'l', '6', '4')) +#define FL64_MARKER (MAKE_MARKER ('F', 'L', '6', '4')) + +#define ulaw_MARKER (MAKE_MARKER ('u', 'l', 'a', 'w')) +#define ULAW_MARKER (MAKE_MARKER ('U', 'L', 'A', 'W')) +#define alaw_MARKER (MAKE_MARKER ('a', 'l', 'a', 'w')) +#define ALAW_MARKER (MAKE_MARKER ('A', 'L', 'A', 'W')) + +#define DWVW_MARKER (MAKE_MARKER ('D', 'W', 'V', 'W')) +#define GSM_MARKER (MAKE_MARKER ('G', 'S', 'M', ' ')) +#define ima4_MARKER (MAKE_MARKER ('i', 'm', 'a', '4')) + +/* +** This value is officially assigned to Mega Nerd Pty Ltd by Apple +** Corportation as the Application marker for libsndfile. +** +** See : http://developer.apple.com/faq/datatype.html +*/ +#define m3ga_MARKER (MAKE_MARKER ('m', '3', 'g', 'a')) + +/* Unsupported AIFC encodings.*/ + +#define MAC3_MARKER (MAKE_MARKER ('M', 'A', 'C', '3')) +#define MAC6_MARKER (MAKE_MARKER ('M', 'A', 'C', '6')) +#define ADP4_MARKER (MAKE_MARKER ('A', 'D', 'P', '4')) + +/* Predfined chunk sizes. */ +#define SIZEOF_AIFF_COMM 18 +#define SIZEOF_AIFC_COMM_MIN 22 +#define SIZEOF_AIFC_COMM 24 +#define SIZEOF_SSND_CHUNK 8 +#define SIZEOF_INST_CHUNK 20 + +/* Is it constant? */ + +/* AIFC/IMA4 defines. */ +#define AIFC_IMA4_BLOCK_LEN 34 +#define AIFC_IMA4_SAMPLES_PER_BLOCK 64 + +#define AIFF_PEAK_CHUNK_SIZE(ch) (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int))) + +/*------------------------------------------------------------------------------ + * Typedefs for file chunks. + */ + +enum +{ HAVE_FORM = 0x01, + HAVE_AIFF = 0x02, + HAVE_AIFC = 0x04, + HAVE_FVER = 0x08, + HAVE_COMM = 0x10, + HAVE_SSND = 0x20 +} ; + +typedef struct +{ unsigned int size ; + short numChannels ; + unsigned int numSampleFrames ; + short sampleSize ; + unsigned char sampleRate [10] ; + unsigned int encoding ; + char zero_bytes [2] ; +} COMM_CHUNK ; + +typedef struct +{ unsigned int offset ; + unsigned int blocksize ; +} SSND_CHUNK ; + +typedef struct +{ short playMode ; + unsigned short beginLoop ; + unsigned short endLoop ; +} INST_LOOP ; + +typedef struct +{ char baseNote ; /* all notes are MIDI note numbers */ + char detune ; /* cents off, only -50 to +50 are significant */ + char lowNote ; + char highNote ; + char lowVelocity ; /* 1 to 127 */ + char highVelocity ; /* 1 to 127 */ + short gain ; /* in dB, 0 is normal */ + INST_LOOP sustain_loop ; + INST_LOOP release_loop ; +} INST_CHUNK ; + + +enum +{ basc_SCALE_MINOR = 1, + basc_SCALE_MAJOR, + basc_SCALE_NEITHER, + basc_SCALE_BOTH +} ; + +enum +{ basc_TYPE_LOOP = 0, + basc_TYPE_ONE_SHOT +} ; + + +typedef struct +{ unsigned int version ; + unsigned int numBeats ; + unsigned short rootNote ; + unsigned short scaleType ; + unsigned short sigNumerator ; + unsigned short sigDenominator ; + unsigned short loopType ; +} basc_CHUNK ; + +typedef struct +{ unsigned short markerID ; + unsigned int position ; +} MARK_ID_POS ; + +typedef struct +{ PRIV_CHUNK4 chunk4 ; + + sf_count_t comm_offset ; + sf_count_t ssnd_offset ; + + int chanmap_tag ; + + MARK_ID_POS *markstr ; +} AIFF_PRIVATE ; + +/*------------------------------------------------------------------------------ + * Private static functions. + */ + +static int aiff_close (SF_PRIVATE *psf) ; + +static int tenbytefloat2int (unsigned char *bytes) ; +static void uint2tenbytefloat (unsigned int num, unsigned char *bytes) ; + +static int aiff_read_comm_chunk (SF_PRIVATE *psf, COMM_CHUNK *comm_fmt) ; + +static int aiff_read_header (SF_PRIVATE *psf, COMM_CHUNK *comm_fmt) ; + +static int aiff_write_header (SF_PRIVATE *psf, int calc_length) ; +static int aiff_write_tailer (SF_PRIVATE *psf) ; +static void aiff_write_strings (SF_PRIVATE *psf, int location) ; + +static int aiff_command (SF_PRIVATE *psf, int command, void *data, int datasize) ; + +static const char *get_loop_mode_str (short mode) ; + +static short get_loop_mode (short mode) ; + +static int aiff_read_basc_chunk (SF_PRIVATE * psf, int) ; + +static int aiff_read_chanmap (SF_PRIVATE * psf, unsigned dword) ; + +static unsigned int marker_to_position (const MARK_ID_POS *m, unsigned short n, int marksize) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +aiff_open (SF_PRIVATE *psf) +{ COMM_CHUNK comm_fmt ; + int error, subformat ; + + memset (&comm_fmt, 0, sizeof (comm_fmt)) ; + + subformat = SF_CODEC (psf->sf.format) ; + + if ((psf->container_data = calloc (1, sizeof (AIFF_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = aiff_read_header (psf, &comm_fmt))) + return error ; + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_AIFF) + return SFE_BAD_OPEN_FORMAT ; + + if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)) + { if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + psf->peak_info->peak_loc = SF_PEAK_START ; + } ; + + if (psf->file.mode != SFM_RDWR || psf->filelength < 40) + { psf->filelength = 0 ; + psf->datalength = 0 ; + psf->dataoffset = 0 ; + psf->sf.frames = 0 ; + } ; + + psf->str_flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ; + + if ((error = aiff_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = aiff_write_header ; + } ; + + psf->container_close = aiff_close ; + psf->command = aiff_command ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_U8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_S8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + case SF_FORMAT_DWVW_12 : + error = dwvw_init (psf, 12) ; + break ; + + case SF_FORMAT_DWVW_16 : + error = dwvw_init (psf, 16) ; + break ; + + case SF_FORMAT_DWVW_24 : + error = dwvw_init (psf, 24) ; + break ; + + case SF_FORMAT_DWVW_N : + if (psf->file.mode != SFM_READ) + { error = SFE_DWVW_BAD_BITWIDTH ; + break ; + } ; + if (comm_fmt.sampleSize >= 8 && comm_fmt.sampleSize < 24) + { error = dwvw_init (psf, comm_fmt.sampleSize) ; + psf->sf.frames = comm_fmt.numSampleFrames ; + break ; + } ; + psf_log_printf (psf, "AIFC/DWVW : Bad bitwidth %d\n", comm_fmt.sampleSize) ; + error = SFE_DWVW_BAD_BITWIDTH ; + break ; + + case SF_FORMAT_IMA_ADPCM : + /* + ** IMA ADPCM encoded AIFF files always have a block length + ** of 34 which decodes to 64 samples. + */ + error = aiff_ima_init (psf, AIFC_IMA4_BLOCK_LEN, AIFC_IMA4_SAMPLES_PER_BLOCK) ; + break ; + /* Lite remove end */ + + case SF_FORMAT_GSM610 : + error = gsm610_init (psf) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + + return error ; +} /* aiff_open */ + +/*========================================================================================== +** Private functions. +*/ + +/* This function ought to check size */ +static unsigned int +marker_to_position (const MARK_ID_POS *m, unsigned short n, int marksize) +{ int i ; + + for (i = 0 ; i < marksize ; i++) + if (m [i].markerID == n) + return m [i].position ; + return 0 ; +} /* marker_to_position */ + +static int +aiff_read_header (SF_PRIVATE *psf, COMM_CHUNK *comm_fmt) +{ SSND_CHUNK ssnd_fmt ; + AIFF_PRIVATE *paiff ; + unsigned marker, dword, FORMsize, SSNDsize, bytesread ; + int k, found_chunk = 0, done = 0, error = 0 ; + char *cptr ; + int instr_found = 0, mark_found = 0, mark_count = 0 ; + + if (psf->filelength > SF_PLATFORM_S64 (0xffffffff)) + psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ; + + if ((paiff = psf->container_data) == NULL) + return SFE_INTERNAL ; + + paiff->comm_offset = 0 ; + paiff->ssnd_offset = 0 ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "p", 0) ; + + memset (comm_fmt, 0, sizeof (COMM_CHUNK)) ; + + /* Until recently AIF* file were all BIG endian. */ + psf->endian = SF_ENDIAN_BIG ; + + /* AIFF files can apparently have their chunks in any order. However, they + ** must have a FORM chunk. Approach here is to read all the chunks one by + ** one and then check for the mandatory chunks at the end. + */ + while (! done) + { psf_binheader_readf (psf, "m", &marker) ; + + if (psf->file.mode == SFM_RDWR && (found_chunk & HAVE_SSND)) + return SFE_AIFF_RW_SSND_NOT_LAST ; + + switch (marker) + { case FORM_MARKER : + if (found_chunk) + return SFE_AIFF_NO_FORM ; + + psf_binheader_readf (psf, "E4", &FORMsize) ; + pchk4_store (&paiff->chunk4, marker, psf->headindex - 8, FORMsize) ; + + if (psf->fileoffset > 0 && psf->filelength > FORMsize + 8) + { /* Set file length. */ + psf->filelength = FORMsize + 8 ; + psf_log_printf (psf, "FORM : %u\n", FORMsize) ; + } + else if (FORMsize != psf->filelength - 2 * SIGNED_SIZEOF (dword)) + { dword = psf->filelength - 2 * sizeof (dword) ; + psf_log_printf (psf, "FORM : %u (should be %u)\n", FORMsize, dword) ; + FORMsize = dword ; + } + else + psf_log_printf (psf, "FORM : %u\n", FORMsize) ; + found_chunk |= HAVE_FORM ; + break ; + + case AIFC_MARKER : + case AIFF_MARKER : + if ((found_chunk & HAVE_FORM) == 0) + return SFE_AIFF_AIFF_NO_FORM ; + psf_log_printf (psf, " %M\n", marker) ; + found_chunk |= (marker == AIFC_MARKER) ? (HAVE_AIFC | HAVE_AIFF) : HAVE_AIFF ; + break ; + + case COMM_MARKER : + paiff->comm_offset = psf_ftell (psf) - 4 ; + error = aiff_read_comm_chunk (psf, comm_fmt) ; + pchk4_store (&paiff->chunk4, marker, paiff->comm_offset, comm_fmt->size) ; + + + psf->sf.samplerate = tenbytefloat2int (comm_fmt->sampleRate) ; + psf->sf.frames = comm_fmt->numSampleFrames ; + psf->sf.channels = comm_fmt->numChannels ; + psf->bytewidth = BITWIDTH2BYTES (comm_fmt->sampleSize) ; + + if (error) + return error ; + + found_chunk |= HAVE_COMM ; + break ; + + case PEAK_MARKER : + /* Must have COMM chunk before PEAK chunk. */ + if ((found_chunk & (HAVE_FORM | HAVE_AIFF | HAVE_COMM)) != (HAVE_FORM | HAVE_AIFF | HAVE_COMM)) + return SFE_AIFF_PEAK_B4_COMM ; + + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf->headindex - 8, dword) ; + + psf_log_printf (psf, "%M : %d\n", marker, dword) ; + if (dword != AIFF_PEAK_CHUNK_SIZE (psf->sf.channels)) + { psf_binheader_readf (psf, "j", dword) ; + psf_log_printf (psf, "*** File PEAK chunk too big.\n") ; + return SFE_WAV_BAD_PEAK ; + } ; + + if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + + /* read in rest of PEAK chunk. */ + psf_binheader_readf (psf, "E44", &(psf->peak_info->version), &(psf->peak_info->timestamp)) ; + + if (psf->peak_info->version != 1) + psf_log_printf (psf, " version : %d *** (should be version 1)\n", psf->peak_info->version) ; + else + psf_log_printf (psf, " version : %d\n", psf->peak_info->version) ; + + psf_log_printf (psf, " time stamp : %d\n", psf->peak_info->timestamp) ; + psf_log_printf (psf, " Ch Position Value\n") ; + + cptr = psf->u.cbuf ; + for (dword = 0 ; dword < (unsigned) psf->sf.channels ; dword++) + { float value ; + unsigned int position ; + + psf_binheader_readf (psf, "Ef4", &value, &position) ; + psf->peak_info->peaks [dword].value = value ; + psf->peak_info->peaks [dword].position = position ; + + snprintf (cptr, sizeof (psf->u.scbuf), " %2d %-12" PRId64 " %g\n", + dword, psf->peak_info->peaks [dword].position, psf->peak_info->peaks [dword].value) ; + cptr [sizeof (psf->u.scbuf) - 1] = 0 ; + psf_log_printf (psf, "%s", cptr) ; + } ; + + psf->peak_info->peak_loc = ((found_chunk & HAVE_SSND) == 0) ? SF_PEAK_START : SF_PEAK_END ; + break ; + + case SSND_MARKER : + if ((found_chunk & HAVE_AIFC) && (found_chunk & HAVE_FVER) == 0) + psf_log_printf (psf, "*** Valid AIFC files should have an FVER chunk.\n") ; + + paiff->ssnd_offset = psf_ftell (psf) - 4 ; + psf_binheader_readf (psf, "E444", &SSNDsize, &(ssnd_fmt.offset), &(ssnd_fmt.blocksize)) ; + pchk4_store (&paiff->chunk4, marker, paiff->ssnd_offset, SSNDsize) ; + + psf->datalength = SSNDsize - sizeof (ssnd_fmt) ; + psf->dataoffset = psf_ftell (psf) ; + + if (psf->datalength > psf->filelength - psf->dataoffset || psf->datalength < 0) + { psf_log_printf (psf, " SSND : %u (should be %D)\n", SSNDsize, psf->filelength - psf->dataoffset + sizeof (SSND_CHUNK)) ; + psf->datalength = psf->filelength - psf->dataoffset ; + } + else + psf_log_printf (psf, " SSND : %u\n", SSNDsize) ; + + if (ssnd_fmt.offset == 0 || psf->dataoffset + ssnd_fmt.offset == ssnd_fmt.blocksize) + { psf_log_printf (psf, " Offset : %u\n", ssnd_fmt.offset) ; + psf_log_printf (psf, " Block Size : %u\n", ssnd_fmt.blocksize) ; + + psf->dataoffset += ssnd_fmt.offset ; + psf->datalength -= ssnd_fmt.offset ; + } + else + { psf_log_printf (psf, " Offset : %u\n", ssnd_fmt.offset) ; + psf_log_printf (psf, " Block Size : %u ???\n", ssnd_fmt.blocksize) ; + psf->dataoffset += ssnd_fmt.offset ; + psf->datalength -= ssnd_fmt.offset ; + } ; + + /* Only set dataend if there really is data at the end. */ + if (psf->datalength + psf->dataoffset < psf->filelength) + psf->dataend = psf->datalength + psf->dataoffset ; + + found_chunk |= HAVE_SSND ; + + if (! psf->sf.seekable) + break ; + + /* Seek to end of SSND chunk. */ + psf_fseek (psf, psf->dataoffset + psf->datalength + (SSNDsize & 1), SEEK_SET) ; + break ; + + case c_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword == 0) + break ; + if (dword >= SIGNED_SIZEOF (psf->u.scbuf)) + { psf_log_printf (psf, " %M : %d (too big)\n", marker, dword) ; + return SFE_INTERNAL ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword + (dword & 1)) ; + cptr [dword] = 0 ; + + psf_sanitize_string (cptr, dword) ; + + psf_log_printf (psf, " %M : %s\n", marker, cptr) ; + psf_store_string (psf, SF_STR_COPYRIGHT, cptr) ; + break ; + + case AUTH_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword == 0) + break ; + if (dword >= SIGNED_SIZEOF (psf->u.scbuf) - 1) + { psf_log_printf (psf, " %M : %d (too big)\n", marker, dword) ; + return SFE_INTERNAL ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword + (dword & 1)) ; + cptr [dword] = 0 ; + psf_log_printf (psf, " %M : %s\n", marker, cptr) ; + psf_store_string (psf, SF_STR_ARTIST, cptr) ; + break ; + + case COMT_MARKER : + { unsigned short count, id, len ; + unsigned int timestamp ; + + psf_binheader_readf (psf, "E42", &dword, &count) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + psf_log_printf (psf, " %M : %d\n count : %d\n", marker, dword, count) ; + dword += (dword & 1) ; + if (dword == 0) + break ; + dword -= 2 ; + + for (k = 0 ; k < count ; k++) + { dword -= psf_binheader_readf (psf, "E422", ×tamp, &id, &len) ; + psf_log_printf (psf, " time : 0x%x\n marker : %x\n length : %d\n", timestamp, id, len) ; + + if (len + 1 > SIGNED_SIZEOF (psf->u.scbuf)) + { psf_log_printf (psf, "\nError : string length (%d) too big.\n", len) ; + return SFE_INTERNAL ; + } ; + + cptr = psf->u.cbuf ; + dword -= psf_binheader_readf (psf, "b", cptr, len) ; + cptr [len] = 0 ; + psf_log_printf (psf, " string : %s\n", cptr) ; + } ; + + if (dword > 0) + psf_binheader_readf (psf, "j", dword) ; + } ; + break ; + + case APPL_MARKER : + { unsigned appl_marker ; + + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword == 0) + break ; + if (dword >= SIGNED_SIZEOF (psf->u.scbuf) - 1) + { psf_log_printf (psf, " %M : %d (too big, skipping)\n", marker, dword) ; + psf_binheader_readf (psf, "j", dword + (dword & 1)) ; + break ; + } ; + + if (dword < 4) + { psf_log_printf (psf, " %M : %d (too small, skipping)\n", marker, dword) ; + psf_binheader_readf (psf, "j", dword + (dword & 1)) ; + break ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "mb", &appl_marker, cptr, dword + (dword & 1) - 4) ; + cptr [dword] = 0 ; + + for (k = 0 ; k < (int) dword ; k++) + if (! psf_isprint (cptr [k])) + { cptr [k] = 0 ; + break ; + } ; + + psf_log_printf (psf, " %M : %d\n AppSig : %M\n Name : %s\n", marker, dword, appl_marker, cptr) ; + psf_store_string (psf, SF_STR_SOFTWARE, cptr) ; + } ; + break ; + + case NAME_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword == 0) + break ; + if (dword >= SIGNED_SIZEOF (psf->u.scbuf) - 2) + { psf_log_printf (psf, " %M : %d (too big)\n", marker, dword) ; + return SFE_INTERNAL ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword + (dword & 1)) ; + cptr [dword] = 0 ; + psf_log_printf (psf, " %M : %s\n", marker, cptr) ; + psf_store_string (psf, SF_STR_TITLE, cptr) ; + break ; + + case ANNO_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword == 0) + break ; + if (dword >= SIGNED_SIZEOF (psf->u.scbuf) - 2) + { psf_log_printf (psf, " %M : %d (too big)\n", marker, dword) ; + return SFE_INTERNAL ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword + (dword & 1)) ; + cptr [dword] = 0 ; + psf_log_printf (psf, " %M : %s\n", marker, cptr) ; + psf_store_string (psf, SF_STR_COMMENT, cptr) ; + break ; + + case INST_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + if (dword != SIZEOF_INST_CHUNK) + { psf_log_printf (psf, " %M : %d (should be %d)\n", marker, dword, SIZEOF_INST_CHUNK) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + { unsigned char bytes [6] ; + short gain ; + + if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL) + return SFE_MALLOC_FAILED ; + + psf_binheader_readf (psf, "b", bytes, 6) ; + psf_log_printf (psf, " Base Note : %u\n Detune : %u\n" + " Low Note : %u\n High Note : %u\n" + " Low Vel. : %u\n High Vel. : %u\n", + bytes [0], bytes [1], bytes [2], bytes [3], bytes [4], bytes [5]) ; + psf->instrument->basenote = bytes [0] ; + psf->instrument->detune = bytes [1] ; + psf->instrument->key_lo = bytes [2] ; + psf->instrument->key_hi = bytes [3] ; + psf->instrument->velocity_lo = bytes [4] ; + psf->instrument->velocity_hi = bytes [5] ; + psf_binheader_readf (psf, "E2", &gain) ; + psf->instrument->gain = gain ; + psf_log_printf (psf, " Gain (dB) : %d\n", gain) ; + } ; + { short mode ; /* 0 - no loop, 1 - forward looping, 2 - backward looping */ + const char *loop_mode ; + unsigned short begin, end ; + + psf_binheader_readf (psf, "E222", &mode, &begin, &end) ; + loop_mode = get_loop_mode_str (mode) ; + mode = get_loop_mode (mode) ; + if (mode == SF_LOOP_NONE) + { psf->instrument->loop_count = 0 ; + psf->instrument->loops [0].mode = SF_LOOP_NONE ; + } + else + { psf->instrument->loop_count = 1 ; + psf->instrument->loops [0].mode = SF_LOOP_FORWARD ; + psf->instrument->loops [0].start = begin ; + psf->instrument->loops [0].end = end ; + psf->instrument->loops [0].count = 0 ; + } ; + psf_log_printf (psf, " Sustain\n mode : %d => %s\n begin : %u\n end : %u\n", + mode, loop_mode, begin, end) ; + psf_binheader_readf (psf, "E222", &mode, &begin, &end) ; + loop_mode = get_loop_mode_str (mode) ; + mode = get_loop_mode (mode) ; + if (mode == SF_LOOP_NONE) + psf->instrument->loops [1].mode = SF_LOOP_NONE ; + else + { psf->instrument->loop_count += 1 ; + psf->instrument->loops [1].mode = SF_LOOP_FORWARD ; + psf->instrument->loops [1].start = begin ; + psf->instrument->loops [1].end = end ; + psf->instrument->loops [1].count = 0 ; + } ; + psf_log_printf (psf, " Release\n mode : %d => %s\n begin : %u\n end : %u\n", + mode, loop_mode, begin, end) ; + } ; + instr_found++ ; + break ; + + case basc_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + psf_log_printf (psf, " basc : %u\n", dword) ; + + if ((error = aiff_read_basc_chunk (psf, dword))) + return error ; + break ; + + case MARK_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + { unsigned short mark_id, n = 0 ; + unsigned int position ; + + bytesread = psf_binheader_readf (psf, "E2", &n) ; + mark_count = n ; + psf_log_printf (psf, " Count : %d\n", mark_count) ; + if (paiff->markstr != NULL) + { psf_log_printf (psf, "*** Second MARK chunk found. Throwing away the first.\n") ; + free (paiff->markstr) ; + } ; + paiff->markstr = calloc (mark_count, sizeof (MARK_ID_POS)) ; + if (paiff->markstr == NULL) + return SFE_MALLOC_FAILED ; + + for (n = 0 ; n < mark_count && bytesread < dword ; n++) + { unsigned int pstr_len ; + unsigned char ch ; + + bytesread += psf_binheader_readf (psf, "E241", &mark_id, &position, &ch) ; + psf_log_printf (psf, " Mark ID : %u\n Position : %u\n", mark_id, position) ; + + pstr_len = (ch & 1) ? ch : ch + 1 ; + + if (pstr_len < sizeof (psf->u.scbuf) - 1) + { bytesread += psf_binheader_readf (psf, "b", psf->u.scbuf, pstr_len) ; + psf->u.scbuf [pstr_len] = 0 ; + } + else + { unsigned int read_len = pstr_len - (sizeof (psf->u.scbuf) - 1) ; + bytesread += psf_binheader_readf (psf, "bj", psf->u.scbuf, read_len, pstr_len - read_len) ; + psf->u.scbuf [sizeof (psf->u.scbuf) - 1] = 0 ; + } + + psf_log_printf (psf, " Name : %s\n", psf->u.scbuf) ; + + paiff->markstr [n].markerID = mark_id ; + paiff->markstr [n].position = position ; + /* + ** TODO if psf->u.scbuf is equal to + ** either Beg_loop, Beg loop or beg loop and spam + ** if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL) + ** return SFE_MALLOC_FAILED ; + */ + } ; + } ; + mark_found++ ; + psf_binheader_readf (psf, "j", dword - bytesread) ; + break ; + + case FVER_MARKER : + found_chunk |= HAVE_FVER ; + /* Fall through to next case. */ + + case SFX_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + psf_binheader_readf (psf, "j", dword) ; + break ; + + case NONE_MARKER : + /* Fix for broken AIFC files with incorrect COMM chunk length. */ + { unsigned char byte ; + psf_binheader_readf (psf, "1", &byte) ; + dword = byte ; + psf_binheader_readf (psf, "j", dword) ; + } + break ; + + case CHAN_MARKER : + psf_binheader_readf (psf, "E4", &dword) ; + pchk4_store (&paiff->chunk4, marker, psf_ftell (psf) - 8, dword) ; + + if (dword < 12) + { psf_log_printf (psf, " %M : %d (should be >= 12)\n", marker, dword) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + } + + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + if ((error = aiff_read_chanmap (psf, dword))) + return error ; + break ; + + default : + if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF) + && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF)) + { psf_binheader_readf (psf, "E4", &dword) ; + psf_log_printf (psf, " %M : %d (unknown marker)\n", marker, dword) ; + + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + if ((dword = psf_ftell (psf)) & 0x03) + { psf_log_printf (psf, " Unknown chunk marker %X at position %d. Resyncing.\n", marker, dword - 4) ; + + psf_binheader_readf (psf, "j", -3) ; + break ; + } ; + psf_log_printf (psf, "*** Unknown chunk marker %X at position %D. Exiting parser.\n", marker, psf_ftell (psf)) ; + done = 1 ; + break ; + } ; /* switch (marker) */ + + if ((! psf->sf.seekable) && (found_chunk & HAVE_SSND)) + break ; + + if (psf_ftell (psf) >= psf->filelength - (2 * SIGNED_SIZEOF (dword))) + break ; + } ; /* while (1) */ + + if (instr_found && mark_found) + { int j ; + + for (j = 0 ; j<psf->instrument->loop_count ; j ++) + { if (j < ARRAY_LEN (psf->instrument->loops)) + { psf->instrument->loops [j].start = marker_to_position (paiff->markstr, psf->instrument->loops [j].start, mark_count) ; + psf->instrument->loops [j].end = marker_to_position (paiff->markstr, psf->instrument->loops [j].end, mark_count) ; + psf->instrument->loops [j].mode = SF_LOOP_FORWARD ; + } ; + } ; + } ; + + if (! (found_chunk & HAVE_FORM)) + return SFE_AIFF_NO_FORM ; + + if (! (found_chunk & HAVE_AIFF)) + return SFE_AIFF_COMM_NO_FORM ; + + if (! (found_chunk & HAVE_COMM)) + return SFE_AIFF_SSND_NO_COMM ; + + if (! psf->dataoffset) + return SFE_AIFF_NO_DATA ; + + return 0 ; +} /* aiff_read_header */ + +static int +aiff_close (SF_PRIVATE *psf) +{ AIFF_PRIVATE *paiff = psf->container_data ; + + if (paiff != NULL && paiff->markstr != NULL) + { free (paiff->markstr) ; + paiff->markstr = NULL ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { aiff_write_tailer (psf) ; + aiff_write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* aiff_close */ + +static int +aiff_read_comm_chunk (SF_PRIVATE *psf, COMM_CHUNK *comm_fmt) +{ int error = 0, bytesread, subformat ; + + psf->u.scbuf [0] = 0 ; + + bytesread = psf_binheader_readf (psf, "E4", &(comm_fmt->size)) ; + + /* The COMM chunk has an int aligned to an odd word boundary. Some + ** procesors are not able to deal with this (ie bus fault) so we have + ** to take special care. + */ + comm_fmt->size += comm_fmt->size & 1 ; + + bytesread += + psf_binheader_readf (psf, "E242b", &(comm_fmt->numChannels), &(comm_fmt->numSampleFrames), + &(comm_fmt->sampleSize), &(comm_fmt->sampleRate), SIGNED_SIZEOF (comm_fmt->sampleRate)) ; + + if (comm_fmt->size > 0x10000 && (comm_fmt->size & 0xffff) == 0) + { psf_log_printf (psf, " COMM : %d (0x%x) *** should be ", comm_fmt->size, comm_fmt->size) ; + comm_fmt->size = ENDSWAP_INT (comm_fmt->size) ; + psf_log_printf (psf, "%d (0x%x)\n", comm_fmt->size, comm_fmt->size) ; + } + else + psf_log_printf (psf, " COMM : %d\n", comm_fmt->size) ; + + if (comm_fmt->size == SIZEOF_AIFF_COMM) + comm_fmt->encoding = NONE_MARKER ; + else if (comm_fmt->size == SIZEOF_AIFC_COMM_MIN) + bytesread += psf_binheader_readf (psf, "Em", &(comm_fmt->encoding)) ; + else if (comm_fmt->size >= SIZEOF_AIFC_COMM) + { unsigned char encoding_len ; + unsigned read_len ; + + bytesread += psf_binheader_readf (psf, "Em1", &(comm_fmt->encoding), &encoding_len) ; + + comm_fmt->size = SF_MIN (sizeof (psf->u.scbuf), make_size_t (comm_fmt->size)) ; + memset (psf->u.scbuf, 0, comm_fmt->size) ; + read_len = comm_fmt->size - SIZEOF_AIFC_COMM + 1 ; + bytesread += psf_binheader_readf (psf, "b", psf->u.scbuf, read_len) ; + psf->u.scbuf [read_len + 1] = 0 ; + } ; + + psf_log_printf (psf, " Sample Rate : %d\n", tenbytefloat2int (comm_fmt->sampleRate)) ; + psf_log_printf (psf, " Frames : %u%s\n", comm_fmt->numSampleFrames, (comm_fmt->numSampleFrames == 0 && psf->filelength > 104) ? " (Should not be 0)" : "") ; + psf_log_printf (psf, " Channels : %d\n", comm_fmt->numChannels) ; + + /* Found some broken 'fl32' files with comm.samplesize == 16. Fix it here. */ + if ((comm_fmt->encoding == fl32_MARKER || comm_fmt->encoding == FL32_MARKER) && comm_fmt->sampleSize != 32) + { psf_log_printf (psf, " Sample Size : %d (should be 32)\n", comm_fmt->sampleSize) ; + comm_fmt->sampleSize = 32 ; + } + else if ((comm_fmt->encoding == fl64_MARKER || comm_fmt->encoding == FL64_MARKER) && comm_fmt->sampleSize != 64) + { psf_log_printf (psf, " Sample Size : %d (should be 64)\n", comm_fmt->sampleSize) ; + comm_fmt->sampleSize = 64 ; + } + else + psf_log_printf (psf, " Sample Size : %d\n", comm_fmt->sampleSize) ; + + subformat = s_bitwidth_to_subformat (comm_fmt->sampleSize) ; + + psf->endian = SF_ENDIAN_BIG ; + + switch (comm_fmt->encoding) + { case NONE_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | subformat) ; + break ; + + case twos_MARKER : + case in24_MARKER : + case in32_MARKER : + psf->sf.format = (SF_ENDIAN_BIG | SF_FORMAT_AIFF | subformat) ; + break ; + + case sowt_MARKER : + case ni24_MARKER : + case ni32_MARKER : + psf->endian = SF_ENDIAN_LITTLE ; + psf->sf.format = (SF_ENDIAN_LITTLE | SF_FORMAT_AIFF | subformat) ; + break ; + + case fl32_MARKER : + case FL32_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_FLOAT) ; + break ; + + case ulaw_MARKER : + case ULAW_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_ULAW) ; + break ; + + case alaw_MARKER : + case ALAW_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_ALAW) ; + break ; + + case fl64_MARKER : + case FL64_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_DOUBLE) ; + break ; + + case raw_MARKER : + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_PCM_U8) ; + break ; + + case DWVW_MARKER : + psf->sf.format = SF_FORMAT_AIFF ; + switch (comm_fmt->sampleSize) + { case 12 : + psf->sf.format |= SF_FORMAT_DWVW_12 ; + break ; + case 16 : + psf->sf.format |= SF_FORMAT_DWVW_16 ; + break ; + case 24 : + psf->sf.format |= SF_FORMAT_DWVW_24 ; + break ; + + default : + psf->sf.format |= SF_FORMAT_DWVW_N ; + break ; + } ; + break ; + + case GSM_MARKER : + psf->sf.format = SF_FORMAT_AIFF ; + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_GSM610) ; + break ; + + + case ima4_MARKER : + psf->endian = SF_ENDIAN_BIG ; + psf->sf.format = (SF_FORMAT_AIFF | SF_FORMAT_IMA_ADPCM) ; + break ; + + default : + psf_log_printf (psf, "AIFC : Unimplemented format : %M\n", comm_fmt->encoding) ; + error = SFE_UNIMPLEMENTED ; + } ; + + if (! psf->u.scbuf [0]) + psf_log_printf (psf, " Encoding : %M\n", comm_fmt->encoding) ; + else + psf_log_printf (psf, " Encoding : %M => %s\n", comm_fmt->encoding, psf->u.scbuf) ; + + return error ; +} /* aiff_read_comm_chunk */ + + +/*========================================================================================== +*/ + +static int +aiff_rewrite_header (SF_PRIVATE *psf, AIFF_PRIVATE * paiff) +{ + /* Assuming here that the header has already been written and just + ** needs to be corrected for new data length. That means that we + ** only change the length fields of the FORM and SSND chunks ; + ** everything else can be skipped over. + */ + int k, ch ; + int comm_size, comm_frames ; + + psf_fseek (psf, 0, SEEK_SET) ; + psf_fread (psf->header, psf->dataoffset, 1, psf) ; + + psf->headindex = 0 ; + + for (k = 0 ; k < paiff->chunk4.count ; k++) + { switch (paiff->chunk4.l [k].chunk) + { case FORM_MARKER : + psf_binheader_writef (psf, "Etm8", FORM_MARKER, psf->filelength - 8) ; + break ; + + case COMM_MARKER : + psf->headindex = paiff->chunk4.l [k].offset ; + comm_frames = psf->sf.frames ; + comm_size = paiff->chunk4.l [k].len ; + psf_binheader_writef (psf, "Em42t4", COMM_MARKER, comm_size, psf->sf.channels, comm_frames) ; + break ; + + case SSND_MARKER : + psf->headindex = paiff->chunk4.l [k].offset ; + psf_binheader_writef (psf, "Etm8", SSND_MARKER, psf->datalength + SIZEOF_SSND_CHUNK) ; + break ; + + case PEAK_MARKER : + psf->headindex = paiff->chunk4.l [k].offset ; + psf_binheader_writef (psf, "Em4", PEAK_MARKER, AIFF_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "E44", 1, time (NULL)) ; + for (ch = 0 ; ch < psf->sf.channels ; ch++) + psf_binheader_writef (psf, "Eft8", (float) psf->peak_info->peaks [ch].value, psf->peak_info->peaks [ch].position) ; + break ; + + default : + /* There are a whole bunch of chunks we should just ignore. */ + break ; + } ; + } ; + + /* Header mangling complete so write it out. */ + psf_fseek (psf, 0, SEEK_SET) ; + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + return 0 ; +} /* aiff_rewrite_header */ + +static int +aiff_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + AIFF_PRIVATE *paiff ; + unsigned char comm_sample_rate [10], comm_zero_bytes [2] = { 0, 0 } ; + unsigned int comm_type, comm_size, comm_encoding, comm_frames = 0 ; + int k, endian, has_data = SF_FALSE ; + short bit_width ; + + if ((paiff = psf->container_data) == NULL) + return SFE_INTERNAL ; + + current = psf_ftell (psf) ; + + if (current > psf->dataoffset) + has_data = SF_TRUE ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + if (psf->file.mode == SFM_RDWR && psf->dataoffset > 0 && paiff->chunk4.count > 0) + { int err = aiff_rewrite_header (psf, paiff) ; + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + return err ; + } ; + + endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_LITTLE_ENDIAN && endian == SF_ENDIAN_CPU) + endian = SF_ENDIAN_LITTLE ; + + /* Standard value here. */ + bit_width = psf->bytewidth * 8 ; + comm_frames = (psf->sf.frames > 0xFFFFFFFF) ? 0xFFFFFFFF : psf->sf.frames ; + + switch (SF_CODEC (psf->sf.format) | endian) + { case SF_FORMAT_PCM_S8 | SF_ENDIAN_BIG : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = twos_MARKER ; + break ; + + case SF_FORMAT_PCM_S8 | SF_ENDIAN_LITTLE : + psf->endian = SF_ENDIAN_LITTLE ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = sowt_MARKER ; + break ; + + case SF_FORMAT_PCM_16 | SF_ENDIAN_BIG : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = twos_MARKER ; + break ; + + case SF_FORMAT_PCM_16 | SF_ENDIAN_LITTLE : + psf->endian = SF_ENDIAN_LITTLE ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = sowt_MARKER ; + break ; + + case SF_FORMAT_PCM_24 | SF_ENDIAN_BIG : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = in24_MARKER ; + break ; + + case SF_FORMAT_PCM_24 | SF_ENDIAN_LITTLE : + psf->endian = SF_ENDIAN_LITTLE ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = ni24_MARKER ; + break ; + + case SF_FORMAT_PCM_32 | SF_ENDIAN_BIG : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = in32_MARKER ; + break ; + + case SF_FORMAT_PCM_32 | SF_ENDIAN_LITTLE : + psf->endian = SF_ENDIAN_LITTLE ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = ni32_MARKER ; + break ; + + case SF_FORMAT_PCM_S8 : /* SF_ENDIAN_FILE */ + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFF_MARKER ; + comm_size = SIZEOF_AIFF_COMM ; + comm_encoding = 0 ; + break ; + + case SF_FORMAT_FLOAT : /* Big endian floating point. */ + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = FL32_MARKER ; /* Use 'FL32' because its easier to read. */ + break ; + + case SF_FORMAT_DOUBLE : /* Big endian double precision floating point. */ + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = FL64_MARKER ; /* Use 'FL64' because its easier to read. */ + break ; + + case SF_FORMAT_ULAW : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = ulaw_MARKER ; + break ; + + case SF_FORMAT_ALAW : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = alaw_MARKER ; + break ; + + case SF_FORMAT_PCM_U8 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = raw_MARKER ; + break ; + + case SF_FORMAT_DWVW_12 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = DWVW_MARKER ; + + /* Override standard value here.*/ + bit_width = 12 ; + break ; + + case SF_FORMAT_DWVW_16 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = DWVW_MARKER ; + + /* Override standard value here.*/ + bit_width = 16 ; + break ; + + case SF_FORMAT_DWVW_24 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = DWVW_MARKER ; + + /* Override standard value here.*/ + bit_width = 24 ; + break ; + + case SF_FORMAT_GSM610 : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = GSM_MARKER ; + + /* Override standard value here.*/ + bit_width = 16 ; + break ; + + case SF_FORMAT_IMA_ADPCM : + psf->endian = SF_ENDIAN_BIG ; + comm_type = AIFC_MARKER ; + comm_size = SIZEOF_AIFC_COMM ; + comm_encoding = ima4_MARKER ; + + /* Override standard value here.*/ + bit_width = 16 ; + comm_frames = psf->sf.frames / AIFC_IMA4_SAMPLES_PER_BLOCK ; + break ; + + default : return SFE_BAD_OPEN_FORMAT ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + psf_binheader_writef (psf, "Etm8", FORM_MARKER, psf->filelength - 8) ; + + /* Write AIFF/AIFC marker and COM chunk. */ + if (comm_type == AIFC_MARKER) + /* AIFC must have an FVER chunk. */ + psf_binheader_writef (psf, "Emm44", comm_type, FVER_MARKER, 4, 0xA2805140) ; + else + psf_binheader_writef (psf, "Em", comm_type) ; + + paiff->comm_offset = psf->headindex - 8 ; + + memset (comm_sample_rate, 0, sizeof (comm_sample_rate)) ; + uint2tenbytefloat (psf->sf.samplerate, comm_sample_rate) ; + + psf_binheader_writef (psf, "Em42t42", COMM_MARKER, comm_size, psf->sf.channels, comm_frames, bit_width) ; + psf_binheader_writef (psf, "b", comm_sample_rate, sizeof (comm_sample_rate)) ; + + /* AIFC chunks have some extra data. */ + if (comm_type == AIFC_MARKER) + psf_binheader_writef (psf, "mb", comm_encoding, comm_zero_bytes, sizeof (comm_zero_bytes)) ; + + if (psf->channel_map && paiff->chanmap_tag) + psf_binheader_writef (psf, "Em4444", CHAN_MARKER, 12, paiff->chanmap_tag, 0, 0) ; + + if (psf->instrument != NULL) + { MARK_ID_POS m [4] ; + INST_CHUNK ch ; + unsigned short ct = 0 ; + + memset (m, 0, sizeof (m)) ; + memset (&ch, 0, sizeof (ch)) ; + + ch.baseNote = psf->instrument->basenote ; + ch.detune = psf->instrument->detune ; + ch.lowNote = psf->instrument->key_lo ; + ch.highNote = psf->instrument->key_hi ; + ch.lowVelocity = psf->instrument->velocity_lo ; + ch.highVelocity = psf->instrument->velocity_hi ; + ch.gain = psf->instrument->gain ; + if (psf->instrument->loops [0].mode != SF_LOOP_NONE) + { ch.sustain_loop.playMode = 1 ; + ch.sustain_loop.beginLoop = ct ; + m [0].markerID = ct++ ; + m [0].position = psf->instrument->loops [0].start ; + ch.sustain_loop.endLoop = ct ; + m [1].markerID = ct++ ; + m [1].position = psf->instrument->loops [0].end ; + } ; + if (psf->instrument->loops [1].mode != SF_LOOP_NONE) + { ch.release_loop.playMode = 1 ; + ch.release_loop.beginLoop = ct ; + m [2].markerID = ct++ ; + m [2].position = psf->instrument->loops [1].start ; + ch.release_loop.endLoop = ct ; + m [3].markerID = ct++ ; + m [3].position = psf->instrument->loops [1].end ; + } + else + { ch.release_loop.playMode = 0 ; + ch.release_loop.beginLoop = 0 ; + ch.release_loop.endLoop = 0 ; + } ; + + psf_binheader_writef (psf, "Em4111111", INST_MARKER, SIZEOF_INST_CHUNK, ch.baseNote, ch.detune, + ch.lowNote, ch.highNote, ch.lowVelocity, ch.highVelocity) ; + psf_binheader_writef (psf, "2222222", ch.gain, ch.sustain_loop.playMode, + ch.sustain_loop.beginLoop, ch.sustain_loop.endLoop, ch.release_loop.playMode, + ch.release_loop.beginLoop, ch.release_loop.endLoop) ; + + if (ct == 2) + psf_binheader_writef (psf, "Em42241b241b", + MARK_MARKER, 2 + 2 * (2 + 4 + 1 + 9), 2, + m [0].markerID, m [0].position, 8, "beg loop", make_size_t (9), + m [1].markerID, m [1].position, 8, "end loop", make_size_t (9)) ; + else if (ct == 4) + psf_binheader_writef (psf, "Em42 241b 241b 241b 241b", + MARK_MARKER, 2 + 4 * (2 + 4 + 1 + 9), 4, + m [0].markerID, m [0].position, 8, "beg loop", make_size_t (9), + m [1].markerID, m [1].position, 8, "end loop", make_size_t (9), + m [2].markerID, m [2].position, 8, "beg loop", make_size_t (9), + m [3].markerID, m [3].position, 8, "end loop", make_size_t (9)) ; + } ; + + if (psf->str_flags & SF_STR_LOCATE_START) + aiff_write_strings (psf, SF_STR_LOCATE_START) ; + + if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START) + { psf_binheader_writef (psf, "Em4", PEAK_MARKER, AIFF_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "E44", 1, time (NULL)) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "Eft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + + /* Write SSND chunk. */ + paiff->ssnd_offset = psf->headindex ; + psf_binheader_writef (psf, "Etm844", SSND_MARKER, psf->datalength + SIZEOF_SSND_CHUNK, 0, 0) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + if (has_data && psf->dataoffset != psf->headindex) + return psf->error = SFE_INTERNAL ; + + psf->dataoffset = psf->headindex ; + + if (! has_data) + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + else if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* aiff_write_header */ + +static int +aiff_write_tailer (SF_PRIVATE *psf) +{ int k ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + psf->dataend = psf_fseek (psf, 0, SEEK_END) ; + + /* Make sure tailer data starts at even byte offset. Pad if necessary. */ + if (psf->dataend % 2 == 1) + { psf_fwrite (psf->header, 1, 1, psf) ; + psf->dataend ++ ; + } ; + + if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END) + { psf_binheader_writef (psf, "Em4", PEAK_MARKER, AIFF_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "E44", 1, time (NULL)) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "Eft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + + if (psf->str_flags & SF_STR_LOCATE_END) + aiff_write_strings (psf, SF_STR_LOCATE_END) ; + + /* Write the tailer. */ + if (psf->headindex > 0) + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + return 0 ; +} /* aiff_write_tailer */ + +static void +aiff_write_strings (SF_PRIVATE *psf, int location) +{ int k, slen ; + + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + { if (psf->strings [k].type == 0) + break ; + + if (psf->strings [k].flags != location) + continue ; + + switch (psf->strings [k].type) + { case SF_STR_SOFTWARE : + slen = strlen (psf->strings [k].str) ; + psf_binheader_writef (psf, "Em4mb", APPL_MARKER, slen + 4, m3ga_MARKER, psf->strings [k].str, make_size_t (slen + (slen & 1))) ; + break ; + + case SF_STR_TITLE : + psf_binheader_writef (psf, "EmS", NAME_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_COPYRIGHT : + psf_binheader_writef (psf, "EmS", c_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_ARTIST : + psf_binheader_writef (psf, "EmS", AUTH_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_COMMENT : + psf_binheader_writef (psf, "EmS", ANNO_MARKER, psf->strings [k].str) ; + break ; + + /* + case SF_STR_DATE : + psf_binheader_writef (psf, "Ems", ICRD_MARKER, psf->strings [k].str) ; + break ; + */ + } ; + } ; + + return ; +} /* aiff_write_strings */ + +static int +aiff_command (SF_PRIVATE * psf, int command, void * UNUSED (data), int UNUSED (datasize)) +{ AIFF_PRIVATE *paiff ; + + if ((paiff = psf->container_data) == NULL) + return SFE_INTERNAL ; + + switch (command) + { case SFC_SET_CHANNEL_MAP_INFO : + paiff->chanmap_tag = aiff_caf_find_channel_layout_tag (psf->channel_map, psf->sf.channels) ; + return (paiff->chanmap_tag != 0) ; + + default : + break ; + } ; + + + + return 0 ; +} /* aiff_command */ + +static const char* +get_loop_mode_str (short mode) +{ switch (mode) + { case 0 : return "none" ; + case 1 : return "forward" ; + case 2 : return "backward" ; + } ; + + return "*** unknown" ; +} /* get_loop_mode_str */ + +static short +get_loop_mode (short mode) +{ switch (mode) + { case 0 : return SF_LOOP_NONE ; + case 1 : return SF_LOOP_FORWARD ; + case 2 : return SF_LOOP_BACKWARD ; + } ; + + return SF_LOOP_NONE ; +} /* get_loop_mode */ + +/*========================================================================================== +** Rough hack at converting from 80 bit IEEE float in AIFF header to an int and +** back again. It assumes that all sample rates are between 1 and 800MHz, which +** should be OK as other sound file formats use a 32 bit integer to store sample +** rate. +** There is another (probably better) version in the source code to the SoX but it +** has a copyright which probably prevents it from being allowable as GPL/LGPL. +*/ + +static int +tenbytefloat2int (unsigned char *bytes) +{ int val = 3 ; + + if (bytes [0] & 0x80) /* Negative number. */ + return 0 ; + + if (bytes [0] <= 0x3F) /* Less than 1. */ + return 1 ; + + if (bytes [0] > 0x40) /* Way too big. */ + return 0x4000000 ; + + if (bytes [0] == 0x40 && bytes [1] > 0x1C) /* Too big. */ + return 800000000 ; + + /* Ok, can handle it. */ + + val = (bytes [2] << 23) | (bytes [3] << 15) | (bytes [4] << 7) | (bytes [5] >> 1) ; + + val >>= (29 - bytes [1]) ; + + return val ; +} /* tenbytefloat2int */ + +static void +uint2tenbytefloat (unsigned int num, unsigned char *bytes) +{ unsigned int mask = 0x40000000 ; + int count ; + + if (num <= 1) + { bytes [0] = 0x3F ; + bytes [1] = 0xFF ; + bytes [2] = 0x80 ; + return ; + } ; + + bytes [0] = 0x40 ; + + if (num >= mask) + { bytes [1] = 0x1D ; + return ; + } ; + + for (count = 0 ; count <= 32 ; count ++) + { if (num & mask) + break ; + mask >>= 1 ; + } ; + + num <<= count + 1 ; + bytes [1] = 29 - count ; + bytes [2] = (num >> 24) & 0xFF ; + bytes [3] = (num >> 16) & 0xFF ; + bytes [4] = (num >> 8) & 0xFF ; + bytes [5] = num & 0xFF ; + +} /* uint2tenbytefloat */ + +static int +aiff_read_basc_chunk (SF_PRIVATE * psf, int datasize) +{ const char * type_str ; + basc_CHUNK bc ; + int count ; + + count = psf_binheader_readf (psf, "E442", &bc.version, &bc.numBeats, &bc.rootNote) ; + count += psf_binheader_readf (psf, "E222", &bc.scaleType, &bc.sigNumerator, &bc.sigDenominator) ; + count += psf_binheader_readf (psf, "E2j", &bc.loopType, datasize - sizeof (bc)) ; + + psf_log_printf (psf, " Version ? : %u\n Num Beats : %u\n Root Note : 0x%x\n", + bc.version, bc.numBeats, bc.rootNote) ; + + switch (bc.scaleType) + { case basc_SCALE_MINOR : + type_str = "MINOR" ; + break ; + case basc_SCALE_MAJOR : + type_str = "MAJOR" ; + break ; + case basc_SCALE_NEITHER : + type_str = "NEITHER" ; + break ; + case basc_SCALE_BOTH : + type_str = "BOTH" ; + break ; + default : + type_str = "!!WRONG!!" ; + break ; + } ; + + psf_log_printf (psf, " ScaleType : 0x%x (%s)\n", bc.scaleType, type_str) ; + psf_log_printf (psf, " Time Sig : %d/%d\n", bc.sigNumerator, bc.sigDenominator) ; + + switch (bc.loopType) + { case basc_TYPE_ONE_SHOT : + type_str = "One Shot" ; + break ; + case basc_TYPE_LOOP : + type_str = "Loop" ; + break ; + default: + type_str = "!!WRONG!!" ; + break ; + } ; + + psf_log_printf (psf, " Loop Type : 0x%x (%s)\n", bc.loopType, type_str) ; + + if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->loop_info->time_sig_num = bc.sigNumerator ; + psf->loop_info->time_sig_den = bc.sigDenominator ; + psf->loop_info->loop_mode = (bc.loopType == basc_TYPE_ONE_SHOT) ? SF_LOOP_NONE : SF_LOOP_FORWARD ; + psf->loop_info->num_beats = bc.numBeats ; + + /* Can always be recalculated from other known fields. */ + psf->loop_info->bpm = (1.0 / psf->sf.frames) * psf->sf.samplerate + * ((bc.numBeats * 4.0) / bc.sigDenominator) * 60.0 ; + psf->loop_info->root_key = bc.rootNote ; + + if (count < datasize) + psf_binheader_readf (psf, "j", datasize - count) ; + + return 0 ; +} /* aiff_read_basc_chunk */ + + +static int +aiff_read_chanmap (SF_PRIVATE * psf, unsigned dword) +{ const AIFF_CAF_CHANNEL_MAP * map_info ; + unsigned channel_bitmap, channel_decriptions, bytesread ; + int layout_tag ; + + bytesread = psf_binheader_readf (psf, "444", &layout_tag, &channel_bitmap, &channel_decriptions) ; + + if ((map_info = aiff_caf_of_channel_layout_tag (layout_tag)) == NULL) + return 0 ; + + psf_log_printf (psf, " Tag : %x\n", layout_tag) ; + if (map_info) + psf_log_printf (psf, " Layout : %s\n", map_info->name) ; + + if (bytesread < dword) + psf_binheader_readf (psf, "j", dword - bytesread) ; + + if (map_info->channel_map != NULL) + { size_t chanmap_size = psf->sf.channels * sizeof (psf->channel_map [0]) ; + + free (psf->channel_map) ; + + if ((psf->channel_map = malloc (chanmap_size)) == NULL) + return SFE_MALLOC_FAILED ; + + memcpy (psf->channel_map, map_info->channel_map, chanmap_size) ; + } ; + + return 0 ; +} /* aiff_read_chanmap */ + diff --git a/src/alaw.c b/src/alaw.c new file mode 100644 index 0000000..6d06b4b --- /dev/null +++ b/src/alaw.c @@ -0,0 +1,540 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <math.h> + +#include "sndfile.h" +#include "common.h" + +static sf_count_t alaw_read_alaw2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t alaw_read_alaw2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t alaw_read_alaw2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t alaw_read_alaw2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t alaw_write_s2alaw (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t alaw_write_i2alaw (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t alaw_write_f2alaw (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t alaw_write_d2alaw (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void alaw2s_array (unsigned char *buffer, int count, short *ptr) ; +static void alaw2i_array (unsigned char *buffer, int count, int *ptr) ; +static void alaw2f_array (unsigned char *buffer, int count, float *ptr, float normfact) ; +static void alaw2d_array (unsigned char *buffer, int count, double *ptr, double normfact) ; + +static void s2alaw_array (const short *buffer, int count, unsigned char *ptr) ; +static void i2alaw_array (const int *buffer, int count, unsigned char *ptr) ; +static void f2alaw_array (const float *buffer, int count, unsigned char *ptr, float normfact) ; +static void d2alaw_array (const double *buffer, int count, unsigned char *ptr, double normfact) ; + + +int +alaw_init (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { psf->read_short = alaw_read_alaw2s ; + psf->read_int = alaw_read_alaw2i ; + psf->read_float = alaw_read_alaw2f ; + psf->read_double = alaw_read_alaw2d ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->write_short = alaw_write_s2alaw ; + psf->write_int = alaw_write_i2alaw ; + psf->write_float = alaw_write_f2alaw ; + psf->write_double = alaw_write_d2alaw ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->sf.channels ; + + if (psf->filelength > psf->dataoffset) + psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : psf->filelength - psf->dataoffset ; + else + psf->datalength = 0 ; + + psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ; + + return 0 ; +} /* alaw_init */ + +/*============================================================================== + * Private static functions and data. + */ + +static +short alaw_decode [256] = +{ -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736, + -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784, + -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368, + -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392, + -22016, -20992, -24064, -23040, -17920, -16896, -19968, -18944, + -30208, -29184, -32256, -31232, -26112, -25088, -28160, -27136, + -11008, -10496, -12032, -11520, -8960, -8448, -9984, -9472, + -15104, -14592, -16128, -15616, -13056, -12544, -14080, -13568, + -344, -328, -376, -360, -280, -264, -312, -296, + -472, -456, -504, -488, -408, -392, -440, -424, + -88, -72, -120, -104, -24, -8, -56, -40, + -216, -200, -248, -232, -152, -136, -184, -168, + -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184, + -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696, + -688, -656, -752, -720, -560, -528, -624, -592, + -944, -912, -1008, -976, -816, -784, -880, -848, + 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, + 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, + 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, + 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, + 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, + 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, + 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, + 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, + 344, 328, 376, 360, 280, 264, 312, 296, + 472, 456, 504, 488, 408, 392, 440, 424, + 88, 72, 120, 104, 24, 8, 56, 40, + 216, 200, 248, 232, 152, 136, 184, 168, + 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, + 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, + 688, 656, 752, 720, 560, 528, 624, 592, + 944, 912, 1008, 976, 816, 784, 880, 848 +} ; /* alaw_decode */ + +static +unsigned char alaw_encode [2048 + 1] = +{ 0xd5, 0xd4, 0xd7, 0xd6, 0xd1, 0xd0, 0xd3, 0xd2, 0xdd, 0xdc, 0xdf, 0xde, + 0xd9, 0xd8, 0xdb, 0xda, 0xc5, 0xc4, 0xc7, 0xc6, 0xc1, 0xc0, 0xc3, 0xc2, + 0xcd, 0xcc, 0xcf, 0xce, 0xc9, 0xc8, 0xcb, 0xca, 0xf5, 0xf5, 0xf4, 0xf4, + 0xf7, 0xf7, 0xf6, 0xf6, 0xf1, 0xf1, 0xf0, 0xf0, 0xf3, 0xf3, 0xf2, 0xf2, + 0xfd, 0xfd, 0xfc, 0xfc, 0xff, 0xff, 0xfe, 0xfe, 0xf9, 0xf9, 0xf8, 0xf8, + 0xfb, 0xfb, 0xfa, 0xfa, 0xe5, 0xe5, 0xe5, 0xe5, 0xe4, 0xe4, 0xe4, 0xe4, + 0xe7, 0xe7, 0xe7, 0xe7, 0xe6, 0xe6, 0xe6, 0xe6, 0xe1, 0xe1, 0xe1, 0xe1, + 0xe0, 0xe0, 0xe0, 0xe0, 0xe3, 0xe3, 0xe3, 0xe3, 0xe2, 0xe2, 0xe2, 0xe2, + 0xed, 0xed, 0xed, 0xed, 0xec, 0xec, 0xec, 0xec, 0xef, 0xef, 0xef, 0xef, + 0xee, 0xee, 0xee, 0xee, 0xe9, 0xe9, 0xe9, 0xe9, 0xe8, 0xe8, 0xe8, 0xe8, + 0xeb, 0xeb, 0xeb, 0xeb, 0xea, 0xea, 0xea, 0xea, 0x95, 0x95, 0x95, 0x95, + 0x95, 0x95, 0x95, 0x95, 0x94, 0x94, 0x94, 0x94, 0x94, 0x94, 0x94, 0x94, + 0x97, 0x97, 0x97, 0x97, 0x97, 0x97, 0x97, 0x97, 0x96, 0x96, 0x96, 0x96, + 0x96, 0x96, 0x96, 0x96, 0x91, 0x91, 0x91, 0x91, 0x91, 0x91, 0x91, 0x91, + 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x93, 0x93, 0x93, 0x93, + 0x93, 0x93, 0x93, 0x93, 0x92, 0x92, 0x92, 0x92, 0x92, 0x92, 0x92, 0x92, + 0x9d, 0x9d, 0x9d, 0x9d, 0x9d, 0x9d, 0x9d, 0x9d, 0x9c, 0x9c, 0x9c, 0x9c, + 0x9c, 0x9c, 0x9c, 0x9c, 0x9f, 0x9f, 0x9f, 0x9f, 0x9f, 0x9f, 0x9f, 0x9f, + 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x99, 0x99, 0x99, 0x99, + 0x99, 0x99, 0x99, 0x99, 0x98, 0x98, 0x98, 0x98, 0x98, 0x98, 0x98, 0x98, + 0x9b, 0x9b, 0x9b, 0x9b, 0x9b, 0x9b, 0x9b, 0x9b, 0x9a, 0x9a, 0x9a, 0x9a, + 0x9a, 0x9a, 0x9a, 0x9a, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, + 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x84, 0x84, 0x84, 0x84, + 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, + 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, 0x87, + 0x87, 0x87, 0x87, 0x87, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, + 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x81, 0x81, 0x81, 0x81, + 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, + 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x82, 0x82, 0x82, 0x82, + 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, + 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, 0x8d, + 0x8d, 0x8d, 0x8d, 0x8d, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, + 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8c, 0x8f, 0x8f, 0x8f, 0x8f, + 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8f, + 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, 0x8e, + 0x8e, 0x8e, 0x8e, 0x8e, 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, + 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, 0x89, 0x88, 0x88, 0x88, 0x88, + 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, + 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, 0x8b, + 0x8b, 0x8b, 0x8b, 0x8b, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, + 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0x8a, 0xb5, 0xb5, 0xb5, 0xb5, + 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, + 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, + 0xb5, 0xb5, 0xb5, 0xb5, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, + 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, + 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, + 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, + 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, + 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb6, 0xb6, 0xb6, 0xb6, + 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, + 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, + 0xb6, 0xb6, 0xb6, 0xb6, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, + 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, + 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, + 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, + 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, + 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb0, 0xb3, 0xb3, 0xb3, 0xb3, + 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 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0xa9, 0xa9, 0xa9, 0xa8, 0xa8, 0xa8, 0xa8, + 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, + 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, + 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, + 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, + 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, + 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, + 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, + 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, + 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, + 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, + 0xab, 0xab, 0xab, 0xab, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, + 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0x2a +} ; /* alaw_encode */ + +static inline void +alaw2s_array (unsigned char *buffer, int count, short *ptr) +{ while (--count >= 0) + ptr [count] = alaw_decode [(int) buffer [count]] ; +} /* alaw2s_array */ + +static inline void +alaw2i_array (unsigned char *buffer, int count, int *ptr) +{ while (--count >= 0) + ptr [count] = alaw_decode [(int) buffer [count]] << 16 ; +} /* alaw2i_array */ + +static inline void +alaw2f_array (unsigned char *buffer, int count, float *ptr, float normfact) +{ while (--count >= 0) + ptr [count] = normfact * alaw_decode [(int) buffer [count]] ; +} /* alaw2f_array */ + +static inline void +alaw2d_array (unsigned char *buffer, int count, double *ptr, double normfact) +{ while (--count >= 0) + ptr [count] = normfact * alaw_decode [(int) buffer [count]] ; +} /* alaw2d_array */ + +static inline void +s2alaw_array (const short *ptr, int count, unsigned char *buffer) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = alaw_encode [ptr [count] / 16] ; + else + buffer [count] = 0x7F & alaw_encode [ptr [count] / -16] ; + } ; +} /* s2alaw_array */ + +static inline void +i2alaw_array (const int *ptr, int count, unsigned char *buffer) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = alaw_encode [ptr [count] >> (16 + 4)] ; + else + buffer [count] = 0x7F & alaw_encode [- ptr [count] >> (16 + 4)] ; + } ; +} /* i2alaw_array */ + +static inline void +f2alaw_array (const float *ptr, int count, unsigned char *buffer, float normfact) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = alaw_encode [lrintf (normfact * ptr [count])] ; + else + buffer [count] = 0x7F & alaw_encode [- lrintf (normfact * ptr [count])] ; + } ; +} /* f2alaw_array */ + +static inline void +d2alaw_array (const double *ptr, int count, unsigned char *buffer, double normfact) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = alaw_encode [lrint (normfact * ptr [count])] ; + else + buffer [count] = 0x7F & alaw_encode [- lrint (normfact * ptr [count])] ; + } ; +} /* d2alaw_array */ + +/*============================================================================== +*/ + +static sf_count_t +alaw_read_alaw2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + alaw2s_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* alaw_read_alaw2s */ + +static sf_count_t +alaw_read_alaw2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + alaw2i_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* alaw_read_alaw2i */ + +static sf_count_t +alaw_read_alaw2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + alaw2f_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* alaw_read_alaw2f */ + +static sf_count_t +alaw_read_alaw2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double) ? 1.0 / ((double) 0x8000) : 1.0 ; + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + alaw2d_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* alaw_read_alaw2d */ + +/*============================================================================================= +*/ + +static sf_count_t +alaw_write_s2alaw (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2alaw_array (ptr + total, bufferlen, psf->u.ucbuf) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* alaw_write_s2alaw */ + +static sf_count_t +alaw_write_i2alaw (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2alaw_array (ptr + total, bufferlen, psf->u.ucbuf) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* alaw_write_i2alaw */ + +static sf_count_t +alaw_write_f2alaw (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) / 16.0 : 1.0 / 16 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2alaw_array (ptr + total, bufferlen, psf->u.ucbuf, normfact) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* alaw_write_f2alaw */ + +static sf_count_t +alaw_write_d2alaw (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double) ? (1.0 * 0x7FFF) / 16.0 : 1.0 / 16.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + d2alaw_array (ptr + total, bufferlen, psf->u.ucbuf, normfact) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* alaw_write_d2alaw */ + diff --git a/src/au.c b/src/au.c new file mode 100644 index 0000000..0ac3bf3 --- /dev/null +++ b/src/au.c @@ -0,0 +1,452 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define DOTSND_MARKER (MAKE_MARKER ('.', 's', 'n', 'd')) +#define DNSDOT_MARKER (MAKE_MARKER ('d', 'n', 's', '.')) + +#define AU_DATA_OFFSET 24 + +/*------------------------------------------------------------------------------ +** Known AU file encoding types. +*/ + +enum +{ AU_ENCODING_ULAW_8 = 1, /* 8-bit u-law samples */ + AU_ENCODING_PCM_8 = 2, /* 8-bit linear samples */ + AU_ENCODING_PCM_16 = 3, /* 16-bit linear samples */ + AU_ENCODING_PCM_24 = 4, /* 24-bit linear samples */ + AU_ENCODING_PCM_32 = 5, /* 32-bit linear samples */ + + AU_ENCODING_FLOAT = 6, /* floating-point samples */ + AU_ENCODING_DOUBLE = 7, /* double-precision float samples */ + AU_ENCODING_INDIRECT = 8, /* fragmented sampled data */ + AU_ENCODING_NESTED = 9, /* ? */ + AU_ENCODING_DSP_CORE = 10, /* DSP program */ + AU_ENCODING_DSP_DATA_8 = 11, /* 8-bit fixed-point samples */ + AU_ENCODING_DSP_DATA_16 = 12, /* 16-bit fixed-point samples */ + AU_ENCODING_DSP_DATA_24 = 13, /* 24-bit fixed-point samples */ + AU_ENCODING_DSP_DATA_32 = 14, /* 32-bit fixed-point samples */ + + AU_ENCODING_DISPLAY = 16, /* non-audio display data */ + AU_ENCODING_MULAW_SQUELCH = 17, /* ? */ + AU_ENCODING_EMPHASIZED = 18, /* 16-bit linear with emphasis */ + AU_ENCODING_NEXT = 19, /* 16-bit linear with compression (NEXT) */ + AU_ENCODING_COMPRESSED_EMPHASIZED = 20, /* A combination of the two above */ + AU_ENCODING_DSP_COMMANDS = 21, /* Music Kit DSP commands */ + AU_ENCODING_DSP_COMMANDS_SAMPLES = 22, /* ? */ + + AU_ENCODING_ADPCM_G721_32 = 23, /* G721 32 kbs ADPCM - 4 bits per sample. */ + AU_ENCODING_ADPCM_G722 = 24, /* G722 64 kbs ADPCM */ + AU_ENCODING_ADPCM_G723_24 = 25, /* G723 24 kbs ADPCM - 3 bits per sample. */ + AU_ENCODING_ADPCM_G723_40 = 26, /* G723 40 kbs ADPCM - 5 bits per sample. */ + + AU_ENCODING_ALAW_8 = 27 +} ; + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +typedef struct +{ int dataoffset ; + int datasize ; + int encoding ; + int samplerate ; + int channels ; +} AU_FMT ; + + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int au_close (SF_PRIVATE *psf) ; + +static int au_format_to_encoding (int format) ; + +static int au_write_header (SF_PRIVATE *psf, int calc_length) ; +static int au_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +au_open (SF_PRIVATE *psf) +{ int subformat ; + int error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = au_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_AU) + return SFE_BAD_OPEN_FORMAT ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_LITTLE_ENDIAN && psf->endian == SF_ENDIAN_CPU) + psf->endian = SF_ENDIAN_LITTLE ; + else if (psf->endian != SF_ENDIAN_LITTLE) + psf->endian = SF_ENDIAN_BIG ; + + if (au_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = au_write_header ; + } ; + + psf->container_close = au_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_ULAW : /* 8-bit Ulaw encoding. */ + ulaw_init (psf) ; + break ; + + case SF_FORMAT_PCM_S8 : /* 8-bit linear PCM. */ + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ + case SF_FORMAT_PCM_24 : /* 24-bit linear PCM */ + case SF_FORMAT_PCM_32 : /* 32-bit linear PCM. */ + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ALAW : /* 8-bit Alaw encoding. */ + alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : /* 32-bit floats. */ + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : /* 64-bit double precision floats. */ + error = double64_init (psf) ; + break ; + + case SF_FORMAT_G721_32 : + error = g72x_init (psf) ; + psf->sf.seekable = SF_FALSE ; + break ; + + case SF_FORMAT_G723_24 : + error = g72x_init (psf) ; + psf->sf.seekable = SF_FALSE ; + break ; + + case SF_FORMAT_G723_40 : + error = g72x_init (psf) ; + psf->sf.seekable = SF_FALSE ; + break ; + /* Lite remove end */ + + default : break ; + } ; + + return error ; +} /* au_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +au_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + au_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* au_close */ + +static int +au_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int encoding, datalength ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + encoding = au_format_to_encoding (SF_CODEC (psf->sf.format)) ; + if (! encoding) + return (psf->error = SFE_BAD_OPEN_FORMAT) ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + /* + ** Only attempt to seek if we are not writng to a pipe. If we are + ** writing to a pipe we shouldn't be here anyway. + */ + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + /* + ** AU format files allow a datalength value of -1 if the datalength + ** is not know at the time the header is written. + ** Also use this value of -1 if the datalength > 2 gigabytes. + */ + if (psf->datalength < 0 || psf->datalength > 0x7FFFFFFF) + datalength = -1 ; + else + datalength = (int) (psf->datalength & 0x7FFFFFFF) ; + + if (psf->endian == SF_ENDIAN_BIG) + { psf_binheader_writef (psf, "Em4", DOTSND_MARKER, AU_DATA_OFFSET) ; + psf_binheader_writef (psf, "E4444", datalength, encoding, psf->sf.samplerate, psf->sf.channels) ; + } + else if (psf->endian == SF_ENDIAN_LITTLE) + { psf_binheader_writef (psf, "em4", DNSDOT_MARKER, AU_DATA_OFFSET) ; + psf_binheader_writef (psf, "e4444", datalength, encoding, psf->sf.samplerate, psf->sf.channels) ; + } + else + return (psf->error = SFE_BAD_OPEN_FORMAT) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* au_write_header */ + +static int +au_format_to_encoding (int format) +{ + switch (format) + { case SF_FORMAT_PCM_S8 : return AU_ENCODING_PCM_8 ; + case SF_FORMAT_PCM_16 : return AU_ENCODING_PCM_16 ; + case SF_FORMAT_PCM_24 : return AU_ENCODING_PCM_24 ; + case SF_FORMAT_PCM_32 : return AU_ENCODING_PCM_32 ; + + case SF_FORMAT_FLOAT : return AU_ENCODING_FLOAT ; + case SF_FORMAT_DOUBLE : return AU_ENCODING_DOUBLE ; + + case SF_FORMAT_ULAW : return AU_ENCODING_ULAW_8 ; + case SF_FORMAT_ALAW : return AU_ENCODING_ALAW_8 ; + + case SF_FORMAT_G721_32 : return AU_ENCODING_ADPCM_G721_32 ; + case SF_FORMAT_G723_24 : return AU_ENCODING_ADPCM_G723_24 ; + case SF_FORMAT_G723_40 : return AU_ENCODING_ADPCM_G723_40 ; + + default : break ; + } ; + return 0 ; +} /* au_format_to_encoding */ + +static int +au_read_header (SF_PRIVATE *psf) +{ AU_FMT au_fmt ; + int marker, dword ; + + memset (&au_fmt, 0, sizeof (au_fmt)) ; + psf_binheader_readf (psf, "pm", 0, &marker) ; + psf_log_printf (psf, "%M\n", marker) ; + + if (marker == DOTSND_MARKER) + { psf->endian = SF_ENDIAN_BIG ; + + psf_binheader_readf (psf, "E44444", &(au_fmt.dataoffset), &(au_fmt.datasize), + &(au_fmt.encoding), &(au_fmt.samplerate), &(au_fmt.channels)) ; + } + else if (marker == DNSDOT_MARKER) + { psf->endian = SF_ENDIAN_LITTLE ; + psf_binheader_readf (psf, "e44444", &(au_fmt.dataoffset), &(au_fmt.datasize), + &(au_fmt.encoding), &(au_fmt.samplerate), &(au_fmt.channels)) ; + } + else + return SFE_AU_NO_DOTSND ; + + psf_log_printf (psf, " Data Offset : %d\n", au_fmt.dataoffset) ; + + if (psf->fileoffset > 0 && au_fmt.datasize == -1) + { psf_log_printf (psf, " Data Size : -1\n") ; + return SFE_AU_EMBED_BAD_LEN ; + } ; + + if (psf->fileoffset > 0) + { psf->filelength = au_fmt.dataoffset + au_fmt.datasize ; + psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; + } + else if (au_fmt.datasize == -1 || au_fmt.dataoffset + au_fmt.datasize == psf->filelength) + psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; + else if (au_fmt.dataoffset + au_fmt.datasize < psf->filelength) + { psf->filelength = au_fmt.dataoffset + au_fmt.datasize ; + psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; + } + else + { dword = psf->filelength - au_fmt.dataoffset ; + psf_log_printf (psf, " Data Size : %d (should be %d)\n", au_fmt.datasize, dword) ; + au_fmt.datasize = dword ; + } ; + + psf->dataoffset = au_fmt.dataoffset ; + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf_ftell (psf) < psf->dataoffset) + psf_binheader_readf (psf, "j", psf->dataoffset - psf_ftell (psf)) ; + + psf->sf.samplerate = au_fmt.samplerate ; + psf->sf.channels = au_fmt.channels ; + + /* Only fill in type major. */ + if (psf->endian == SF_ENDIAN_BIG) + psf->sf.format = SF_FORMAT_AU ; + else if (psf->endian == SF_ENDIAN_LITTLE) + psf->sf.format = SF_ENDIAN_LITTLE | SF_FORMAT_AU ; + + psf_log_printf (psf, " Encoding : %d => ", au_fmt.encoding) ; + + psf->sf.format = SF_ENDIAN (psf->sf.format) ; + + switch (au_fmt.encoding) + { case AU_ENCODING_ULAW_8 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_ULAW ; + psf->bytewidth = 1 ; /* Before decoding */ + psf_log_printf (psf, "8-bit ISDN u-law\n") ; + break ; + + case AU_ENCODING_PCM_8 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_S8 ; + psf->bytewidth = 1 ; + psf_log_printf (psf, "8-bit linear PCM\n") ; + break ; + + case AU_ENCODING_PCM_16 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + psf_log_printf (psf, "16-bit linear PCM\n") ; + break ; + + case AU_ENCODING_PCM_24 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_24 ; + psf->bytewidth = 3 ; + psf_log_printf (psf, "24-bit linear PCM\n") ; + break ; + + case AU_ENCODING_PCM_32 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_32 ; + psf->bytewidth = 4 ; + psf_log_printf (psf, "32-bit linear PCM\n") ; + break ; + + case AU_ENCODING_FLOAT : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_FLOAT ; + psf->bytewidth = 4 ; + psf_log_printf (psf, "32-bit float\n") ; + break ; + + case AU_ENCODING_DOUBLE : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_DOUBLE ; + psf->bytewidth = 8 ; + psf_log_printf (psf, "64-bit double precision float\n") ; + break ; + + case AU_ENCODING_ALAW_8 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_ALAW ; + psf->bytewidth = 1 ; /* Before decoding */ + psf_log_printf (psf, "8-bit ISDN A-law\n") ; + break ; + + case AU_ENCODING_ADPCM_G721_32 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G721_32 ; + psf->bytewidth = 0 ; + psf_log_printf (psf, "G721 32kbs ADPCM\n") ; + break ; + + case AU_ENCODING_ADPCM_G723_24 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G723_24 ; + psf->bytewidth = 0 ; + psf_log_printf (psf, "G723 24kbs ADPCM\n") ; + break ; + + case AU_ENCODING_ADPCM_G723_40 : + psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G723_40 ; + psf->bytewidth = 0 ; + psf_log_printf (psf, "G723 40kbs ADPCM\n") ; + break ; + + case AU_ENCODING_ADPCM_G722 : + psf_log_printf (psf, "G722 64 kbs ADPCM (unsupported)\n") ; + break ; + + case AU_ENCODING_NEXT : + psf_log_printf (psf, "Weird NeXT encoding format (unsupported)\n") ; + break ; + + default : + psf_log_printf (psf, "Unknown!!\n") ; + break ; + } ; + + psf_log_printf (psf, " Sample Rate : %d\n", au_fmt.samplerate) ; + if (au_fmt.channels < 1) + { psf_log_printf (psf, " Channels : %d **** should be >= 1\n", au_fmt.channels) ; + return SFE_CHANNEL_COUNT_ZERO ; + } + else + psf_log_printf (psf, " Channels : %d\n", au_fmt.channels) ; + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if (! psf->sf.frames && psf->blockwidth) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + return 0 ; +} /* au_read_header */ + diff --git a/src/audio_detect.c b/src/audio_detect.c new file mode 100644 index 0000000..775077e --- /dev/null +++ b/src/audio_detect.c @@ -0,0 +1,105 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include <string.h> +#include <errno.h> + +#include "common.h" + +typedef struct +{ int le_float ; + int be_float ; + int le_int_24_32 ; + int be_int_24_32 ; +} VOTE ; + + +static void vote_for_format (VOTE * vote, const unsigned char * data, int datalen) ; + +int +audio_detect (SF_PRIVATE * psf, AUDIO_DETECT *ad, const unsigned char * data, int datalen) +{ VOTE vote ; + + if (psf == NULL) + return 0 ; + + if (ad == NULL || datalen < 256) + return 0 ; + + vote_for_format (&vote, data, datalen) ; + + psf_log_printf (psf, "audio_detect :\n" + " le_float : %d\n" + " be_float : %d\n" + " le_int_24_32 : %d\n" + " be_int_24_32 : %d\n", + vote.le_float, vote.be_float, vote.le_int_24_32, vote.be_int_24_32) ; + + if (0) puts (psf->logbuffer) ; + + if (ad->endianness == SF_ENDIAN_LITTLE && vote.le_float > (3 * datalen) / 4) + { /* Almost certainly 32 bit floats. */ + return SF_FORMAT_FLOAT ; + } ; + + if (ad->endianness == SF_ENDIAN_LITTLE && vote.le_int_24_32 > (3 * datalen) / 4) + { /* Almost certainly 24 bit data stored in 32 bit ints. */ + return SF_FORMAT_PCM_32 ; + } ; + + return 0 ; +} /* data_detect */ + +static void +vote_for_format (VOTE * vote, const unsigned char * data, int datalen) +{ + int k ; + + memset (vote, 0, sizeof (VOTE)) ; + + datalen -= datalen % 4 ; + + for (k = 0 ; k < datalen ; k ++) + { if ((k % 4) == 0) + { if (data [k] == 0 && data [k + 1] != 0) + vote->le_int_24_32 += 4 ; + + if (data [2] != 0 && data [3] == 0) + vote->le_int_24_32 += 4 ; + + if (data [0] != 0 && data [3] > 0x43 && data [3] < 0x4B) + vote->le_float += 4 ; + + if (data [3] != 0 && data [0] > 0x43 && data [0] < 0x4B) + vote->be_float += 4 ; + } ; + } ; + + return ; +} /* vote_for_format */ + diff --git a/src/avr.c b/src/avr.c new file mode 100644 index 0000000..dd09b46 --- /dev/null +++ b/src/avr.c @@ -0,0 +1,247 @@ +/* +** Copyright (C) 2004-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#define TWOBIT_MARKER (MAKE_MARKER ('2', 'B', 'I', 'T')) +#define AVR_HDR_SIZE 128 + +#define SFE_AVR_X 666 + +/* +** From: hyc@hanauma.Jpl.Nasa.Gov (Howard Chu) +** +** A lot of PD software exists to play Mac .snd files on the ST. One other +** format that seems pretty popular (used by a number of commercial packages) +** is the AVR format (from Audio Visual Research). This format has a 128 byte +** header that looks like this (its actually packed, but thats not portable): +*/ + +typedef struct +{ int marker ; /* 2BIT */ + char name [8] ; /* null-padded sample name */ + short mono ; /* 0 = mono, 0xffff = stereo */ + short rez ; /* 8 = 8 bit, 16 = 16 bit */ + short sign ; /* 0 = unsigned, 0xffff = signed */ + + short loop ; /* 0 = no loop, 0xffff = looping sample */ + short midi ; /* 0xffff = no MIDI note assigned, */ + /* 0xffXX = single key note assignment */ + /* 0xLLHH = key split, low/hi note */ + int srate ; /* sample frequency in hertz */ + int frames ; /* sample length in bytes or words (see rez) */ + int lbeg ; /* offset to start of loop in bytes or words. */ + /* set to zero if unused */ + int lend ; /* offset to end of loop in bytes or words. */ + /* set to sample length if unused */ + short res1 ; /* Reserved, MIDI keyboard split */ + short res2 ; /* Reserved, sample compression */ + short res3 ; /* Reserved */ + char ext [20] ; /* Additional filename space, used if (name[7] != 0) */ + char user [64] ; /* User defined. Typically ASCII message */ +} AVR_HEADER ; + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int avr_close (SF_PRIVATE *psf) ; + +static int avr_read_header (SF_PRIVATE *psf) ; +static int avr_write_header (SF_PRIVATE *psf, int calc_length) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +avr_open (SF_PRIVATE *psf) +{ int error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = avr_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_AVR) + return SFE_BAD_OPEN_FORMAT ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->endian = SF_ENDIAN (psf->sf.format) ; + psf->endian = SF_ENDIAN_BIG ; + + if (avr_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = avr_write_header ; + } ; + + psf->container_close = avr_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + error = pcm_init (psf) ; + + return error ; +} /* avr_open */ + +static int +avr_read_header (SF_PRIVATE *psf) +{ AVR_HEADER hdr ; + + memset (&hdr, 0, sizeof (hdr)) ; + + psf_binheader_readf (psf, "pmb", 0, &hdr.marker, &hdr.name, sizeof (hdr.name)) ; + psf_log_printf (psf, "%M\n", hdr.marker) ; + + if (hdr.marker != TWOBIT_MARKER) + return SFE_AVR_X ; + + psf_log_printf (psf, " Name : %s\n", hdr.name) ; + + psf_binheader_readf (psf, "E22222", &hdr.mono, &hdr.rez, &hdr.sign, &hdr.loop, &hdr.midi) ; + + psf->sf.channels = (hdr.mono & 1) + 1 ; + + psf_log_printf (psf, " Channels : %d\n Bit width : %d\n Signed : %s\n", + (hdr.mono & 1) + 1, hdr.rez, hdr.sign ? "yes" : "no") ; + + switch ((hdr.rez << 16) + (hdr.sign & 1)) + { case ((8 << 16) + 0) : + psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_U8 ; + psf->bytewidth = 1 ; + break ; + + case ((8 << 16) + 1) : + psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_S8 ; + psf->bytewidth = 1 ; + break ; + + case ((16 << 16) + 1) : + psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + + default : + psf_log_printf (psf, "Error : bad rez/sign combination.\n") ; + return SFE_AVR_X ; + } ; + + psf_binheader_readf (psf, "E4444", &hdr.srate, &hdr.frames, &hdr.lbeg, &hdr.lend) ; + + psf->sf.frames = hdr.frames ; + psf->sf.samplerate = hdr.srate ; + + psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ; + psf_log_printf (psf, " Sample rate : %d\n", psf->sf.samplerate) ; + + psf_binheader_readf (psf, "E222", &hdr.res1, &hdr.res2, &hdr.res3) ; + psf_binheader_readf (psf, "bb", hdr.ext, sizeof (hdr.ext), hdr.user, sizeof (hdr.user)) ; + + psf_log_printf (psf, " Ext : %s\n User : %s\n", hdr.ext, hdr.user) ; + + psf->endian = SF_ENDIAN_BIG ; + + psf->dataoffset = AVR_HDR_SIZE ; + psf->datalength = hdr.frames * (hdr.rez / 8) ; + + if (psf->fileoffset > 0) + psf->filelength = AVR_HDR_SIZE + psf->datalength ; + + if (psf_ftell (psf) != psf->dataoffset) + psf_binheader_readf (psf, "j", psf->dataoffset - psf_ftell (psf)) ; + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if (psf->sf.frames == 0 && psf->blockwidth) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + return 0 ; +} /* avr_read_header */ + +static int +avr_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int sign ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + /* + ** Only attempt to seek if we are not writng to a pipe. If we are + ** writing to a pipe we shouldn't be here anyway. + */ + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + psf_binheader_writef (psf, "Emz22", TWOBIT_MARKER, make_size_t (8), + psf->sf.channels == 2 ? 0xFFFF : 0, psf->bytewidth * 8) ; + + sign = ((SF_CODEC (psf->sf.format)) == SF_FORMAT_PCM_U8) ? 0 : 0xFFFF ; + + psf_binheader_writef (psf, "E222", sign, 0, 0xFFFF) ; + psf_binheader_writef (psf, "E4444", psf->sf.samplerate, psf->sf.frames, 0, 0) ; + + psf_binheader_writef (psf, "E222zz", 0, 0, 0, make_size_t (20), make_size_t (64)) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* avr_write_header */ + +static int +avr_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + avr_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* avr_close */ + diff --git a/src/binheader_writef_check.py b/src/binheader_writef_check.py new file mode 100755 index 0000000..adfc5f9 --- /dev/null +++ b/src/binheader_writef_check.py @@ -0,0 +1,116 @@ +#!/usr/bin/python + +# Copyright (C) 2006-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +# +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the author nor the names of any contributors may be used +# to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +# This parses C code using regexes (yes, thats horrible) and makes sure +# that calling conventions to the function psf_binheader_writef are +# correct. + + + +import re, string, sys + +_whitespace_re = re.compile ("\s+", re.MULTILINE) + +def find_binheader_writefs (data): + lst = re.findall ('psf_binheader_writef\s*\(\s*[a-zA-Z_]+\s*,\s*\"[^;]+;', data, re.MULTILINE) + return [_whitespace_re.sub (" ", x) for x in lst] + +def find_format_string (s): + fmt = re.search ('"([^"]+)"', s) + if not fmt: + print "Bad format in :\n\n\t%s\n\n" % s + sys.exit (1) + fmt = fmt.groups () + if len (fmt) != 1: + print "Bad format in :\n\n\t%s\n\n" % s + sys.exit (1) + return _whitespace_re.sub ("", fmt [0]) + +def get_param_list (data): + dlist = re.search ("\((.+)\)\s*;", data) + dlist = dlist.groups ()[0] + dlist = string.split (dlist, ",") + dlist = [string.strip (x) for x in dlist] + return dlist [2:] + +def handle_file (fname): + errors = 0 + data = open (fname, "r").read () + + writefs = find_binheader_writefs (data) + for item in writefs: + fmt = find_format_string (item) + params = get_param_list (item) + param_index = 0 + + # print item + + for ch in fmt: + if ch in 'Eet ': + continue + + # print " param [%d] %c : %s" % (param_index, ch, params [param_index]) + + if ch != 'b': + param_index += 1 + continue + + # print item + # print " param [%d] %c : %s <-> %s" % (param_index, ch, params [param_index], params [param_index + 1]) + + if string.find (params [param_index + 1], "sizeof") < 0 \ + and string.find (params [param_index + 1], "make_size_t") < 0 \ + and string.find (params [param_index + 1], "strlen") < 0: + if errors == 0: print + print "\n%s :" % fname + print " param [%d] %c : %s <-> %s" % (param_index, ch, params [param_index], params [param_index + 1]) + print " %s" % item + errors += 1 + param_index += 2 + + return errors + +#=============================================================================== + +if len (sys.argv) > 1: + print "\n binheader_writef_check :", + sys.stdout.flush () + errors = 0 + for fname in sys.argv [1:]: + errors += handle_file (fname) + if errors > 0: + print "\nErrors : %d\n" % errors + sys.exit (1) + +print "ok\n" + diff --git a/src/broadcast.c b/src/broadcast.c new file mode 100644 index 0000000..975ee84 --- /dev/null +++ b/src/broadcast.c @@ -0,0 +1,190 @@ +/* +** Copyright (C) 2006-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2006 Paul Davis <paul@linuxaudiosystems.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stddef.h> +#include <string.h> + +#include "common.h" + + +static int gen_coding_history (char * added_history, int added_history_max, const SF_INFO * psfinfo) ; + +static inline size_t +bc_min_size (const SF_BROADCAST_INFO* info) +{ if (info == NULL) + return 0 ; + + return offsetof (SF_BROADCAST_INFO, coding_history) + info->coding_history_size ; +} /* bc_min_size */ + +SF_BROADCAST_INFO_16K* +broadcast_var_alloc (void) +{ return calloc (1, sizeof (SF_BROADCAST_INFO_16K)) ; +} /* broadcast_var_alloc */ + +int +broadcast_var_set (SF_PRIVATE *psf, const SF_BROADCAST_INFO * info, size_t datasize) +{ size_t len ; + + if (info == NULL) + return SF_FALSE ; + + if (bc_min_size (info) > datasize) + { psf->error = SFE_BAD_BROADCAST_INFO_SIZE ; + return SF_FALSE ; + } ; + + if (datasize >= sizeof (SF_BROADCAST_INFO_16K)) + { psf->error = SFE_BAD_BROADCAST_INFO_TOO_BIG ; + return SF_FALSE ; + } ; + + if (psf->broadcast_16k == NULL) + { if ((psf->broadcast_16k = broadcast_var_alloc ()) == NULL) + { psf->error = SFE_MALLOC_FAILED ; + return SF_FALSE ; + } ; + } ; + + memcpy (psf->broadcast_16k, info, offsetof (SF_BROADCAST_INFO, coding_history)) ; + + psf_strlcpy_crlf (psf->broadcast_16k->coding_history, info->coding_history, sizeof (psf->broadcast_16k->coding_history), datasize - offsetof (SF_BROADCAST_INFO, coding_history)) ; + len = strlen (psf->broadcast_16k->coding_history) ; + + if (len > 0 && psf->broadcast_16k->coding_history [len - 1] != '\n') + psf_strlcat (psf->broadcast_16k->coding_history, sizeof (psf->broadcast_16k->coding_history), "\r\n") ; + + if (psf->file.mode == SFM_WRITE) + { char added_history [256] ; + + gen_coding_history (added_history, sizeof (added_history), &(psf->sf)) ; + psf_strlcat (psf->broadcast_16k->coding_history, sizeof (psf->broadcast_16k->coding_history), added_history) ; + } ; + + /* Force coding_history_size to be even. */ + len = strlen (psf->broadcast_16k->coding_history) ; + len += (len & 1) ? 1 : 2 ; + psf->broadcast_16k->coding_history_size = len ; + + /* Currently writing this version. */ + psf->broadcast_16k->version = 1 ; + + return SF_TRUE ; +} /* broadcast_var_set */ + + +int +broadcast_var_get (SF_PRIVATE *psf, SF_BROADCAST_INFO * data, size_t datasize) +{ size_t size ; + + if (psf->broadcast_16k == NULL) + return SF_FALSE ; + + size = SF_MIN (datasize, bc_min_size ((const SF_BROADCAST_INFO *) psf->broadcast_16k)) ; + + memcpy (data, psf->broadcast_16k, size) ; + + return SF_TRUE ; +} /* broadcast_var_get */ + +/*------------------------------------------------------------------------------ +*/ + +static int +gen_coding_history (char * added_history, int added_history_max, const SF_INFO * psfinfo) +{ char chnstr [16] ; + int count, width ; + + /* + ** From : http://www.sr.se/utveckling/tu/bwf/docs/codhist2.htm + ** + ** Parameter Variable string <allowed option> Unit + ** ========================================================================================== + ** Coding Algorithm A=<ANALOGUE, PCM, MPEG1L1, MPEG1L2, MPEG1L3, + ** MPEG2L1, MPEG2L2, MPEG2L3> + ** Sampling frequency F=<11000,22050,24000,32000,44100,48000> [Hz] + ** Bit-rate B=<any bit-rate allowed in MPEG 2 (ISO/IEC [kbit/s per channel] + ** 13818-3)> + ** Word Length W=<8, 12, 14, 16, 18, 20, 22, 24> [bits] + ** Mode M=<mono, stereo, dual-mono, joint-stereo> + ** Text, free string T=<a free ASCII-text string for in house use. + ** This string should contain no commas (ASCII + ** 2Chex). Examples of the contents: ID-No; codec + ** type; A/D type> + */ + + switch (psfinfo->channels) + { case 0 : + return SF_FALSE ; + + case 1 : + psf_strlcpy (chnstr, sizeof (chnstr), "mono") ; + break ; + + case 2 : + psf_strlcpy (chnstr, sizeof (chnstr), "stereo") ; + break ; + + default : + snprintf (chnstr, sizeof (chnstr), "%uchn", psfinfo->channels) ; + break ; + } ; + + switch (SF_CODEC (psfinfo->format)) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_S8 : + width = 8 ; + break ; + case SF_FORMAT_PCM_16 : + width = 16 ; + break ; + case SF_FORMAT_PCM_24 : + width = 24 ; + break ; + case SF_FORMAT_PCM_32 : + width = 32 ; + break ; + case SF_FORMAT_FLOAT : + width = 24 ; /* Bits in the mantissa + 1 */ + break ; + case SF_FORMAT_DOUBLE : + width = 53 ; /* Bits in the mantissa + 1 */ + break ; + case SF_FORMAT_ULAW : + case SF_FORMAT_ALAW : + width = 12 ; + break ; + default : + width = 42 ; + break ; + } ; + + count = snprintf (added_history, added_history_max, + "A=PCM,F=%u,W=%hu,M=%s,T=%s-%s\r\n", + psfinfo->samplerate, width, chnstr, PACKAGE, VERSION) ; + + if (count >= added_history_max) + return 0 ; + + return count ; +} /* gen_coding_history */ + diff --git a/src/caf.c b/src/caf.c new file mode 100644 index 0000000..99e9117 --- /dev/null +++ b/src/caf.c @@ -0,0 +1,620 @@ +/* +** Copyright (C) 2005-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <math.h> +#include <inttypes.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "chanmap.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define aac_MARKER MAKE_MARKER ('a', 'a', 'c', ' ') +#define alac_MARKER MAKE_MARKER ('a', 'l', 'a', 'c') +#define alaw_MARKER MAKE_MARKER ('a', 'l', 'a', 'w') +#define caff_MARKER MAKE_MARKER ('c', 'a', 'f', 'f') +#define chan_MARKER MAKE_MARKER ('c', 'h', 'a', 'n') +#define data_MARKER MAKE_MARKER ('d', 'a', 't', 'a') +#define desc_MARKER MAKE_MARKER ('d', 'e', 's', 'c') +#define edct_MARKER MAKE_MARKER ('e', 'd', 'c', 't') +#define free_MARKER MAKE_MARKER ('f', 'r', 'e', 'e') +#define ima4_MARKER MAKE_MARKER ('i', 'm', 'a', '4') +#define info_MARKER MAKE_MARKER ('i', 'n', 'f', 'o') +#define inst_MARKER MAKE_MARKER ('i', 'n', 's', 't') +#define kuki_MARKER MAKE_MARKER ('k', 'u', 'k', 'i') +#define lpcm_MARKER MAKE_MARKER ('l', 'p', 'c', 'm') +#define mark_MARKER MAKE_MARKER ('m', 'a', 'r', 'k') +#define midi_MARKER MAKE_MARKER ('m', 'i', 'd', 'i') +#define mp1_MARKER MAKE_MARKER ('.', 'm', 'p', '1') +#define mp2_MARKER MAKE_MARKER ('.', 'm', 'p', '2') +#define mp3_MARKER MAKE_MARKER ('.', 'm', 'p', '3') +#define ovvw_MARKER MAKE_MARKER ('o', 'v', 'v', 'w') +#define pakt_MARKER MAKE_MARKER ('p', 'a', 'k', 't') +#define peak_MARKER MAKE_MARKER ('p', 'e', 'a', 'k') +#define regn_MARKER MAKE_MARKER ('r', 'e', 'g', 'n') +#define strg_MARKER MAKE_MARKER ('s', 't', 'r', 'g') +#define umid_MARKER MAKE_MARKER ('u', 'm', 'i', 'd') +#define uuid_MARKER MAKE_MARKER ('u', 'u', 'i', 'd') +#define ulaw_MARKER MAKE_MARKER ('u', 'l', 'a', 'w') +#define MAC3_MARKER MAKE_MARKER ('M', 'A', 'C', '3') +#define MAC6_MARKER MAKE_MARKER ('M', 'A', 'C', '6') + +#define CAF_PEAK_CHUNK_SIZE(ch) ((int) (sizeof (int) + ch * (sizeof (float) + 8))) + +#define SFE_CAF_NOT_CAF 666 +#define SFE_CAF_NO_DESC 667 +#define SFE_CAF_BAD_PEAK 668 + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +typedef struct +{ unsigned char srate [8] ; + unsigned int fmt_id ; + unsigned int fmt_flags ; + unsigned int pkt_bytes ; + unsigned int pkt_frames ; + unsigned int channels_per_frame ; + unsigned int bits_per_chan ; +} DESC_CHUNK ; + +typedef struct +{ int chanmap_tag ; +} CAF_PRIVATE ; + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int caf_close (SF_PRIVATE *psf) ; +static int caf_read_header (SF_PRIVATE *psf) ; +static int caf_write_header (SF_PRIVATE *psf, int calc_length) ; +static int caf_command (SF_PRIVATE *psf, int command, void *data, int datasize) ; +static int caf_read_chanmap (SF_PRIVATE * psf, sf_count_t chunk_size) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +caf_open (SF_PRIVATE *psf) +{ int subformat, format, error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = caf_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if ((psf->container_data = calloc (1, sizeof (CAF_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + format = SF_CONTAINER (psf->sf.format) ; + if (format != SF_FORMAT_CAF) + return SFE_BAD_OPEN_FORMAT ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + if (psf->file.mode != SFM_RDWR || psf->filelength < 44) + { psf->filelength = 0 ; + psf->datalength = 0 ; + psf->dataoffset = 0 ; + psf->sf.frames = 0 ; + } ; + + psf->str_flags = SF_STR_ALLOW_START ; + + /* + ** By default, add the peak chunk to floating point files. Default behaviour + ** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE). + */ + if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)) + { if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + psf->peak_info->peak_loc = SF_PEAK_START ; + } ; + + if ((error = caf_write_header (psf, SF_FALSE)) != 0) + return error ; + + psf->write_header = caf_write_header ; + } ; + + psf->container_close = caf_close ; + psf->command = caf_command ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + /* Lite remove end */ + + default : + return SFE_UNSUPPORTED_ENCODING ; + } ; + + return error ; +} /* caf_open */ + +static int +caf_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + caf_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* caf_close */ + +static int +caf_command (SF_PRIVATE * psf, int command, void * UNUSED (data), int UNUSED (datasize)) +{ CAF_PRIVATE *pcaf ; + + if ((pcaf = psf->container_data) == NULL) + return SFE_INTERNAL ; + + switch (command) + { case SFC_SET_CHANNEL_MAP_INFO : + pcaf->chanmap_tag = aiff_caf_find_channel_layout_tag (psf->channel_map, psf->sf.channels) ; + return (pcaf->chanmap_tag != 0) ; + + default : + break ; + } ; + + return 0 ; +} /* caf_command */ + +/*------------------------------------------------------------------------------ +*/ + +static int +decode_desc_chunk (SF_PRIVATE *psf, const DESC_CHUNK *desc) +{ int format ; + + psf->sf.channels = desc->channels_per_frame ; + + format = SF_FORMAT_CAF | (psf->endian == SF_ENDIAN_LITTLE ? SF_ENDIAN_LITTLE : 0) ; + + if (desc->fmt_id == lpcm_MARKER && desc->fmt_flags & 1) + { /* Floating point data. */ + if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame) + { psf->bytewidth = 4 ; + return format | SF_FORMAT_FLOAT ; + } ; + if (desc->bits_per_chan == 64 && desc->pkt_bytes == 8 * desc->channels_per_frame) + { psf->bytewidth = 8 ; + return format | SF_FORMAT_DOUBLE ; + } ; + } ; + + if ((desc->fmt_flags & 1) != 0) + { psf_log_printf (psf, "**** Ooops, 'desc' chunk suggests float data, but other info invalid.\n") ; + return 0 ; + } ; + + if (desc->fmt_id == lpcm_MARKER) + { /* Integer data. */ + if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame) + { psf->bytewidth = 4 ; + return format | SF_FORMAT_PCM_32 ; + } ; + if (desc->bits_per_chan == 24 && desc->pkt_bytes == 3 * desc->channels_per_frame) + { psf->bytewidth = 3 ; + return format | SF_FORMAT_PCM_24 ; + } ; + if (desc->bits_per_chan == 16 && desc->pkt_bytes == 2 * desc->channels_per_frame) + { psf->bytewidth = 2 ; + return format | SF_FORMAT_PCM_16 ; + } ; + if (desc->bits_per_chan == 8 && desc->pkt_bytes == 1 * desc->channels_per_frame) + { psf->bytewidth = 1 ; + return format | SF_FORMAT_PCM_S8 ; + } ; + } ; + + if (desc->fmt_id == alaw_MARKER && desc->bits_per_chan == 8) + { psf->bytewidth = 1 ; + return format | SF_FORMAT_ALAW ; + } ; + + if (desc->fmt_id == ulaw_MARKER && desc->bits_per_chan == 8) + { psf->bytewidth = 1 ; + return format | SF_FORMAT_ULAW ; + } ; + + return 0 ; +} /* decode_desc_chunk */ + +static int +caf_read_header (SF_PRIVATE *psf) +{ DESC_CHUNK desc ; + sf_count_t chunk_size ; + double srate ; + short version, flags ; + int marker, k, have_data = 0, error ; + + memset (&desc, 0, sizeof (desc)) ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "pmE2E2", 0, &marker, &version, &flags) ; + psf_log_printf (psf, "%M\n Version : %d\n Flags : %x\n", marker, version, flags) ; + if (marker != caff_MARKER) + return SFE_CAF_NOT_CAF ; + + psf_binheader_readf (psf, "mE8b", &marker, &chunk_size, psf->u.ucbuf, 8) ; + srate = double64_be_read (psf->u.ucbuf) ; + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%5.3f", srate) ; + psf_log_printf (psf, "%M : %D\n Sample rate : %s\n", marker, chunk_size, psf->u.cbuf) ; + if (marker != desc_MARKER) + return SFE_CAF_NO_DESC ; + + if (chunk_size < SIGNED_SIZEOF (DESC_CHUNK)) + { psf_log_printf (psf, "**** Chunk size too small. Should be > 32 bytes.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + psf->sf.samplerate = lrint (srate) ; + + psf_binheader_readf (psf, "mE44444", &desc.fmt_id, &desc.fmt_flags, &desc.pkt_bytes, &desc.pkt_frames, + &desc.channels_per_frame, &desc.bits_per_chan) ; + psf_log_printf (psf, " Format id : %M\n Format flags : %x\n Bytes / packet : %u\n" + " Frames / packet : %u\n Channels / frame : %u\n Bits / channel : %u\n", + desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ; + + if (desc.channels_per_frame > SF_MAX_CHANNELS) + { psf_log_printf (psf, "**** Bad channels per frame value %u.\n", desc.channels_per_frame) ; + return SFE_MALFORMED_FILE ; + } ; + + if (chunk_size > SIGNED_SIZEOF (DESC_CHUNK)) + psf_binheader_readf (psf, "j", (int) (chunk_size - sizeof (DESC_CHUNK))) ; + + psf->sf.channels = desc.channels_per_frame ; + + while (have_data == 0 && psf_ftell (psf) < psf->filelength - SIGNED_SIZEOF (marker)) + { psf_binheader_readf (psf, "mE8", &marker, &chunk_size) ; + + switch (marker) + { case peak_MARKER : + psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; + if (chunk_size != CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) + { psf_binheader_readf (psf, "j", (int) chunk_size) ; + psf_log_printf (psf, "*** File PEAK chunk %D should be %d.\n", chunk_size, CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + return SFE_CAF_BAD_PEAK ; + } ; + + if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + + /* read in rest of PEAK chunk. */ + psf_binheader_readf (psf, "E4", & (psf->peak_info->edit_number)) ; + psf_log_printf (psf, " edit count : %d\n", psf->peak_info->edit_number) ; + + psf_log_printf (psf, " Ch Position Value\n") ; + for (k = 0 ; k < psf->sf.channels ; k++) + { sf_count_t position ; + float value ; + + psf_binheader_readf (psf, "Ef8", &value, &position) ; + psf->peak_info->peaks [k].value = value ; + psf->peak_info->peaks [k].position = position ; + + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), " %2d %-12" PRId64 " %g\n", k, position, value) ; + psf_log_printf (psf, psf->u.cbuf) ; + } ; + + psf->peak_info->peak_loc = SF_PEAK_START ; + break ; + + case chan_MARKER : + if (chunk_size < 12) + { psf_log_printf (psf, "%M : %D (should be >= 12)\n", marker, chunk_size) ; + psf_binheader_readf (psf, "j", (int) chunk_size) ; + break ; + } + + psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; + + if ((error = caf_read_chanmap (psf, chunk_size))) + return error ; + break ; + + case free_MARKER : + psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; + psf_binheader_readf (psf, "j", (int) chunk_size) ; + break ; + + case data_MARKER : + if (psf->filelength > 0 && chunk_size + psf->headindex != psf->filelength) + psf_log_printf (psf, "%M : %D (should be %D)\n", marker, chunk_size, chunk_size + 4) ; + else + psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ; + psf_binheader_readf (psf, "E4", &k) ; + psf_log_printf (psf, " edit : %u\n", k) ; + have_data = 1 ; + break ; + + default : + psf_log_printf (psf, " %M : %D (skipped)\n", marker, chunk_size) ; + psf_binheader_readf (psf, "j", (int) chunk_size) ; + break ; + } ; + } ; + + if (have_data == 0) + { psf_log_printf (psf, "**** Error, could not find 'data' chunk.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + psf_log_printf (psf, "End\n") ; + + psf->dataoffset = psf_ftell (psf) ; + psf->datalength = psf->filelength - psf->dataoffset ; + psf->endian = (desc.fmt_flags & 2) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ; + + if ((psf->sf.format = decode_desc_chunk (psf, &desc)) == 0) + return SFE_UNSUPPORTED_ENCODING ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / psf->bytewidth ; + + return 0 ; +} /* caf_read_header */ + +/*------------------------------------------------------------------------------ +*/ + +static int +caf_write_header (SF_PRIVATE *psf, int calc_length) +{ CAF_PRIVATE *pcaf ; + DESC_CHUNK desc ; + sf_count_t current, free_len ; + int subformat ; + + if ((pcaf = psf->container_data) == NULL) + return SFE_INTERNAL ; + + memset (&desc, 0, sizeof (desc)) ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* 'caff' marker, version and flags. */ + psf_binheader_writef (psf, "Em22", caff_MARKER, 1, 0) ; + + /* 'desc' marker and chunk size. */ + psf_binheader_writef (psf, "Em8", desc_MARKER, (sf_count_t) (sizeof (DESC_CHUNK))) ; + + double64_be_write (1.0 * psf->sf.samplerate, psf->u.ucbuf) ; + psf_binheader_writef (psf, "b", psf->u.ucbuf, make_size_t (8)) ; + + subformat = SF_CODEC (psf->sf.format) ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + + if (CPU_IS_BIG_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU)) + psf->endian = SF_ENDIAN_BIG ; + else if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_LITTLE || psf->endian == SF_ENDIAN_CPU)) + psf->endian = SF_ENDIAN_LITTLE ; + + if (psf->endian == SF_ENDIAN_LITTLE) + desc.fmt_flags = 2 ; + else + psf->endian = SF_ENDIAN_BIG ; + + /* initial section (same for all, it appears) */ + switch (subformat) + { case SF_FORMAT_PCM_S8 : + desc.fmt_id = lpcm_MARKER ; + psf->bytewidth = 1 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 8 ; + break ; + + case SF_FORMAT_PCM_16 : + desc.fmt_id = lpcm_MARKER ; + psf->bytewidth = 2 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 16 ; + break ; + + case SF_FORMAT_PCM_24 : + psf->bytewidth = 3 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 24 ; + desc.fmt_id = lpcm_MARKER ; + break ; + + case SF_FORMAT_PCM_32 : + desc.fmt_id = lpcm_MARKER ; + psf->bytewidth = 4 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 32 ; + break ; + + case SF_FORMAT_FLOAT : + desc.fmt_id = lpcm_MARKER ; + desc.fmt_flags |= 1 ; + psf->bytewidth = 4 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 32 ; + break ; + + case SF_FORMAT_DOUBLE : + desc.fmt_id = lpcm_MARKER ; + desc.fmt_flags |= 1 ; + psf->bytewidth = 8 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 64 ; + break ; + + case SF_FORMAT_ALAW : + desc.fmt_id = alaw_MARKER ; + psf->bytewidth = 1 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 8 ; + break ; + + case SF_FORMAT_ULAW : + desc.fmt_id = ulaw_MARKER ; + psf->bytewidth = 1 ; + desc.pkt_bytes = psf->bytewidth * psf->sf.channels ; + desc.pkt_frames = 1 ; + desc.channels_per_frame = psf->sf.channels ; + desc.bits_per_chan = 8 ; + break ; + + default : + return SFE_UNIMPLEMENTED ; + } ; + + psf_binheader_writef (psf, "mE44444", desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ; + +#if 0 + if (psf->str_flags & SF_STR_LOCATE_START) + caf_write_strings (psf, SF_STR_LOCATE_START) ; +#endif + + if (psf->peak_info != NULL) + { int k ; + psf_binheader_writef (psf, "Em84", peak_MARKER, (sf_count_t) CAF_PEAK_CHUNK_SIZE (psf->sf.channels), psf->peak_info->edit_number) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "Ef8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + + if (psf->channel_map && pcaf->chanmap_tag) + psf_binheader_writef (psf, "Em8444", chan_MARKER, (sf_count_t) 12, pcaf->chanmap_tag, 0, 0) ; + + /* Add free chunk so that the actual audio data starts at a multiple 0x1000. */ + free_len = 0x1000 - psf->headindex - 16 - 12 ; + while (free_len < 0) + free_len += 0x1000 ; + psf_binheader_writef (psf, "Em8z", free_MARKER, free_len, (int) free_len) ; + + psf_binheader_writef (psf, "Em84", data_MARKER, psf->datalength + 4, 0) ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + if (current < psf->dataoffset) + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + else if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* caf_write_header */ + +static int +caf_read_chanmap (SF_PRIVATE * psf, sf_count_t chunk_size) +{ const AIFF_CAF_CHANNEL_MAP * map_info ; + unsigned channel_bitmap, channel_decriptions, bytesread ; + int layout_tag ; + + bytesread = psf_binheader_readf (psf, "E444", &layout_tag, &channel_bitmap, &channel_decriptions) ; + + map_info = aiff_caf_of_channel_layout_tag (layout_tag) ; + + psf_log_printf (psf, " Tag : %x\n", layout_tag) ; + if (map_info) + psf_log_printf (psf, " Layout : %s\n", map_info->name) ; + + if (bytesread < chunk_size) + psf_binheader_readf (psf, "j", chunk_size - bytesread) ; + + if (map_info->channel_map != NULL) + { size_t chanmap_size = psf->sf.channels * sizeof (psf->channel_map [0]) ; + + free (psf->channel_map) ; + + if ((psf->channel_map = malloc (chanmap_size)) == NULL) + return SFE_MALLOC_FAILED ; + + memcpy (psf->channel_map, map_info->channel_map, chanmap_size) ; + } ; + + return 0 ; +} /* caf_read_chanmap */ + diff --git a/src/chanmap.c b/src/chanmap.c new file mode 100644 index 0000000..9a9f7f0 --- /dev/null +++ b/src/chanmap.c @@ -0,0 +1,262 @@ +/* +** Copyright (C) 2009-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** Mostly from "Apple Core Audio Format Specification 1.0": +** +** http://developer.apple.com/documentation/MusicAudio/Reference/CAFSpec/CAFSpec.pdf +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "sndfile.h" +#include "common.h" +#include "chanmap.h" + + +static const AIFF_CAF_CHANNEL_MAP zero_chan [] = +{ { (0 << 16) | 0, NULL, "Use channel descriptions." }, + { (1 << 16) | 0, NULL, "Use channel bitmap." } +} ; /* zero_chan */ + + +static const int one_chan_mono [1] = { SF_CHANNEL_MAP_MONO } ; + +static const AIFF_CAF_CHANNEL_MAP one_chan [] = +{ { (100 << 16) | 1, one_chan_mono, "mono" } +} ; /* one_chan */ + + +static const int two_channel_stereo [2] = { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT } ; + +static const AIFF_CAF_CHANNEL_MAP two_chan [] = +{ { (101 << 16) | 2, two_channel_stereo, "stereo (L, R)" }, + { (102 << 16) | 2, two_channel_stereo, "stereo headphones (L, R)" }, +#if 0 + { (103 << 16) | 2, NULL, "matrix stereo (Lt, Rt)" }, + { (104 << 16) | 2, NULL, "2 channels (mid, side)" }, + { (105 << 16) | 2, NULL, "coincident mic pair" }, + { (106 << 16) | 2, NULL, "binaural stereo (L, R)" + } +#endif +} ; /* two_chan */ + + +static const int three_channel_mpeg_30a [3] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER } ; +static const int three_channel_mpeg_30b [3] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT } ; +static const int three_channel_itu_21 [3] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int three_channel_dvd_4 [3] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE } ; + +static const AIFF_CAF_CHANNEL_MAP three_chan [] = +{ { (113 << 16) | 3, three_channel_mpeg_30a, "MPEG 3 0 A (L, R, C)" }, + { (114 << 16) | 3, three_channel_mpeg_30b, "MPEG 3 0 B (C, L, R)" }, + { (131 << 16) | 3, three_channel_itu_21, "ITU 2.1 (L, R, Cs)" }, + { (133 << 16) | 3, three_channel_dvd_4, "DVD 4 (L, R, LFE)" } +} ; /* three_chan */ + + +static const int four_channel_ambisonc_b [4] = + { SF_CHANNEL_MAP_AMBISONIC_B_W, SF_CHANNEL_MAP_AMBISONIC_B_X, SF_CHANNEL_MAP_AMBISONIC_B_Y, SF_CHANNEL_MAP_AMBISONIC_B_Z } ; +static const int four_channel_quad [4] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int four_channel_mpeg_40a [4] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int four_channel_mpeg_40b [4] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int four_channel_itu_23 [4] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int four_channel_dvd_5 [4] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int four_channel_dvd_10 [4] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE } ; + +static const AIFF_CAF_CHANNEL_MAP four_chan [] = +{ { (107 << 16) | 4, four_channel_ambisonc_b, "ambisonic B (W, X, Y, Z)" }, + { (108 << 16) | 4, four_channel_quad, "quad (Lfront, Rfront, Lrear, Rrear)" }, + { (115 << 16) | 4, four_channel_mpeg_40a, "MPEG 4.0 A (L, R, C, Cs)" }, + { (116 << 16) | 4, four_channel_mpeg_40b, "MPEG 4.0 B (C, L, R, Cs)" }, + { (132 << 16) | 4, four_channel_itu_23, "ITU 2.3 (L, R, Ls, Rs)" }, + { (134 << 16) | 4, four_channel_dvd_5, "DVD 5 (L, R, LFE, Cs)" }, + { (136 << 16) | 4, four_channel_dvd_10, "DVD 10 (L, R, C, LFE)" } +} ; /* four_chan */ + + +static const int five_channel_pentagonal [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER } ; +static const int five_channel_mpeg_50_a [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int five_channel_mpeg_50_b [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER } ; +static const int five_channel_mpeg_50_c [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int five_channel_mpeg_50_d [5] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int five_channel_dvd_6 [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int five_channel_dvd_11 [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int five_channel_dvd_18 [5] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; + +static const AIFF_CAF_CHANNEL_MAP five_chan [] = +{ { (109 << 16) | 5, five_channel_pentagonal, "pentagonal (L, R, Lrear, Rrear, C)" }, + { (117 << 16) | 5, five_channel_mpeg_50_a, "MPEG 5.0 A (L, R, C, Ls, Rs)" }, + { (118 << 16) | 5, five_channel_mpeg_50_b, "MPEG 5.0 B (L, R, Ls, Rs, C)" }, + { (119 << 16) | 5, five_channel_mpeg_50_c, "MPEG 5.0 C (L, C, R, Ls, Rs,)" }, + { (120 << 16) | 5, five_channel_mpeg_50_d, "MPEG 5.0 D (C, L, R, Ls, Rs)" }, + { (135 << 16) | 5, five_channel_dvd_6, "DVD 6 (L, R, LFE, Ls, Rs)" }, + { (137 << 16) | 5, five_channel_dvd_11, "DVD 11 (L, R, C, LFE, Cs)" }, + { (138 << 16) | 5, five_channel_dvd_18, "DVD 18 (L, R, Ls, Rs, LFE)" } +} ; /* five_chan */ + + +static const int six_channel_mpeg_51_a [6] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT } ; +static const int six_channel_mpeg_51_b [6] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE } ; +static const int six_channel_mpeg_51_c [6] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; +static const int six_channel_mpeg_51_d [6] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_LFE } ; +static const int six_channel_audio_unit_60 [6] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int six_channel_aac_60 [6] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; + +static const AIFF_CAF_CHANNEL_MAP six_chan [] = +{ { (110 << 16) | 6, NULL, "hexagonal (L, R, Lr, Rr, C, Rear)" }, + { (121 << 16) | 6, six_channel_mpeg_51_a, "MPEG 5.1 A (L, R, C, LFE, Ls, Rs)" }, + { (122 << 16) | 6, six_channel_mpeg_51_b, "MPEG 5.1 B (L, R, Ls, Rs, C, LFE)" }, + { (123 << 16) | 6, six_channel_mpeg_51_c, "MPEG 5.1 C (L, C, R, Ls, Rs, LFE)" }, + { (124 << 16) | 6, six_channel_mpeg_51_d, "MPEG 5.1 D (C, L, R, Ls, Rs, LFE)" }, + { (139 << 16) | 6, six_channel_audio_unit_60, "AudioUnit 6.0 (L, R, Ls, Rs, C, Cs)" }, + { (141 << 16) | 6, six_channel_aac_60, "AAC 6.0 (C, L, R, Ls, Rs, Cs)" } +} ; /* six_chan */ + + +static const int six_channel_mpeg_61a [7] = + { SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LFE, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER } ; +static const int six_channel_aac_61 [7] = + { SF_CHANNEL_MAP_CENTER, SF_CHANNEL_MAP_LEFT, SF_CHANNEL_MAP_RIGHT, SF_CHANNEL_MAP_REAR_LEFT, SF_CHANNEL_MAP_REAR_RIGHT, SF_CHANNEL_MAP_REAR_CENTER, SF_CHANNEL_MAP_LFE } ; + +static const AIFF_CAF_CHANNEL_MAP seven_chan [] = +{ { (125 << 16) | 7, six_channel_mpeg_61a, "MPEG 6.1 A (L, R, C, LFE, Ls, Rs, Cs)" }, + { (140 << 16) | 7, NULL, "AudioUnit 7.0 (L, R, Ls, Rs, C, Rls, Rrs)" }, + { (142 << 16) | 7, six_channel_aac_61, "AAC 6.1 (C, L, R, Ls, Rs, Cs, Lfe)" }, + { (143 << 16) | 7, NULL, "AAC 7.0 (C, L, R, Ls, Rs, Rls, Rrs,)" } +} ; /* seven_chan */ + + +static const AIFF_CAF_CHANNEL_MAP eight_chan [] = +{ { (111 << 16) | 8, NULL, + // front left, front right, rear left, rear right, + // front center, rear center, side left, side right + "octagonal (Lf, Rf, Lr, Rr, Cf, Cr, Ls, Rs)" + }, + { (112 << 16) | 8, NULL, + // left, right, rear left, rear right + // top left, top right, top rear left, top rear right + "cube (L, R, Lrear, Rrear, Ltop, Rtop, Ltoprear, Rtoprear)" + }, + { (126 << 16) | 8, NULL, "MPEG 7.1 A (L, R, C, LFE, Ls, Rs, Lc, Rc)" }, + { (127 << 16) | 8, NULL, "MPEG 7.1 B (C, Lc, Rc, L, R, Ls, Rs, LFE)" }, + { (128 << 16) | 8, NULL, "MPEG 7.1 C (L, R, C, LFE, Ls, R, Rls, Rrs)" }, + { (129 << 16) | 8, NULL, "Emagic Default 7.1 (L, R, Ls, Rs, C, LFE, Lc, Rc)" }, + { (130 << 16) | 8, NULL, + // (ITU_5_1 plus a matrix encoded stereo mix) + "SMPTE DTV (L, R, C, LFE, Ls, Rs, Lt, Rt)" + }, + { (144 << 16) | 8, NULL, "AAC octagonal (C, L, R, Ls, Rs, Rls, Rrs, Cs)" } +} ; /* eight_chan */ + + + +#if 0 + +TMH_10_2_std = (145 << 16) | 16, +// L R C Vhc Lsd Rsd Ls Rs Vhl Vhr Lw Rw Csd Cs LFE1 LFE2 + +TMH_10_2_full = (146 << 16) | 21, +// TMH_10_2_std plus: Lc Rc HI VI Haptic + +#endif + + +typedef struct +{ const AIFF_CAF_CHANNEL_MAP * map ; + int len ; +} MAP_MAP ; + +static const MAP_MAP map [] = +{ { zero_chan, ARRAY_LEN (zero_chan) }, + { one_chan, ARRAY_LEN (one_chan) }, + { two_chan, ARRAY_LEN (two_chan) }, + { three_chan, ARRAY_LEN (three_chan) }, + { four_chan, ARRAY_LEN (four_chan) }, + { five_chan, ARRAY_LEN (five_chan) }, + { six_chan, ARRAY_LEN (six_chan) }, + { seven_chan, ARRAY_LEN (seven_chan) }, + { eight_chan, ARRAY_LEN (eight_chan) } +} ; /* map */ + + +int +aiff_caf_find_channel_layout_tag (const int *chan_map, int channels) +{ const AIFF_CAF_CHANNEL_MAP * curr_map ; + unsigned k, len ; + + if (channels < 1 || channels > ARRAY_LEN (map)) + return 0 ; + + curr_map = map [channels].map ; + len = map [channels].len ; + + for (k = 0 ; k < len ; k++) + if (curr_map [k].channel_map != NULL) + if (memcmp (chan_map, curr_map [k].channel_map, channels * sizeof (chan_map [0])) == 0) + return curr_map [k].channel_layout_tag ; + + return 0 ; +} /* aiff_caf_find_channel_layout_tag */ + +const AIFF_CAF_CHANNEL_MAP * +aiff_caf_of_channel_layout_tag (int tag) +{ const AIFF_CAF_CHANNEL_MAP * curr_map ; + unsigned k, len ; + int channels = tag & 0xffff ; + + if (channels < 0 || channels > ARRAY_LEN (map)) + return NULL ; + + curr_map = map [channels].map ; + len = map [channels].len ; + + for (k = 0 ; k < len ; k++) + if (curr_map [k].channel_layout_tag == tag) + return curr_map + k ; + + return NULL ; +} /* aiff_caf_of_channel_layout_tag */ diff --git a/src/chanmap.h b/src/chanmap.h new file mode 100644 index 0000000..8af409d --- /dev/null +++ b/src/chanmap.h @@ -0,0 +1,32 @@ +/* +** Copyright (C) 2009-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +typedef struct +{ /* The tag in the AIFF or CAF file. */ + int channel_layout_tag ; + + /* The equivalent array of SF_CHANNEL_MAP_* entries. */ + const int * channel_map ; + + const char * name ; +} AIFF_CAF_CHANNEL_MAP ; + + +int aiff_caf_find_channel_layout_tag (const int *chan_map, int channels) ; + +const AIFF_CAF_CHANNEL_MAP * aiff_caf_of_channel_layout_tag (int tag) ; diff --git a/src/chunk.c b/src/chunk.c new file mode 100644 index 0000000..dc17aae --- /dev/null +++ b/src/chunk.c @@ -0,0 +1,54 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdlib.h> +#include <string.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + + +void +pchk4_store (PRIV_CHUNK4 * pchk, int marker, sf_count_t offset, sf_count_t len) +{ + if (pchk->count >= ARRAY_LEN (pchk->l)) + return ; + + pchk->l [pchk->count].chunk = marker ; + pchk->l [pchk->count].offset = offset ; + pchk->l [pchk->count].len = len ; + + pchk->count ++ ; + + return ; +} /* pchk4_store */ + +int +pchk4_find (PRIV_CHUNK4 * pchk, int marker) +{ int k ; + + for (k = 0 ; k < pchk->count ; k++) + if (pchk->l [k].chunk == marker) + return k ; + + return -1 ; +} /* pchk4_find */ + diff --git a/src/command.c b/src/command.c new file mode 100644 index 0000000..aae2a27 --- /dev/null +++ b/src/command.c @@ -0,0 +1,376 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "common.h" + +static SF_FORMAT_INFO const simple_formats [] = +{ + { SF_FORMAT_AIFF | SF_FORMAT_PCM_16, + "AIFF (Apple/SGI 16 bit PCM)", "aiff" + }, + + { SF_FORMAT_AIFF | SF_FORMAT_FLOAT, + "AIFF (Apple/SGI 32 bit float)", "aifc" + }, + + { SF_FORMAT_AIFF | SF_FORMAT_PCM_S8, + "AIFF (Apple/SGI 8 bit PCM)", "aiff" + }, + + { SF_FORMAT_AU | SF_FORMAT_PCM_16, + "AU (Sun/Next 16 bit PCM)", "au" + }, + + { SF_FORMAT_AU | SF_FORMAT_ULAW, + "AU (Sun/Next 8-bit u-law)", "au" + }, + + { SF_FORMAT_CAF | SF_FORMAT_PCM_16, + "CAF (Apple 16 bit PCM)", "caf" + }, + +#if HAVE_EXTERNAL_LIBS + { SF_FORMAT_FLAC | SF_FORMAT_PCM_16, + "FLAC 16 bit", "flac" + }, +#endif + + { SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM, + "OKI Dialogic VOX ADPCM", "vox" + }, + +#if HAVE_EXTERNAL_LIBS + { SF_FORMAT_OGG | SF_FORMAT_VORBIS, + "Ogg Vorbis (Xiph Foundation)", "oga" + }, +#endif + + { SF_FORMAT_WAV | SF_FORMAT_PCM_16, + "WAV (Microsoft 16 bit PCM)", "wav" + }, + + { SF_FORMAT_WAV | SF_FORMAT_FLOAT, + "WAV (Microsoft 32 bit float)", "wav" + }, + + { SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM, + "WAV (Microsoft 4 bit IMA ADPCM)", "wav" + }, + + { SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM, + "WAV (Microsoft 4 bit MS ADPCM)", "wav" + }, + + { SF_FORMAT_WAV | SF_FORMAT_PCM_U8, + "WAV (Microsoft 8 bit PCM)", "wav" + }, + +} ; /* simple_formats */ + +int +psf_get_format_simple_count (void) +{ return (sizeof (simple_formats) / sizeof (SF_FORMAT_INFO)) ; +} /* psf_get_format_simple_count */ + +int +psf_get_format_simple (SF_FORMAT_INFO *data) +{ int indx ; + + if (data->format < 0 || data->format >= (SIGNED_SIZEOF (simple_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) + return SFE_BAD_COMMAND_PARAM ; + + indx = data->format ; + memcpy (data, &(simple_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ; + + return 0 ; +} /* psf_get_format_simple */ + +/*============================================================================ +** Major format info. +*/ + +static SF_FORMAT_INFO const major_formats [] = +{ + { SF_FORMAT_AIFF, "AIFF (Apple/SGI)", "aiff" }, + { SF_FORMAT_AU, "AU (Sun/NeXT)", "au" }, + { SF_FORMAT_AVR, "AVR (Audio Visual Research)", "avr" }, + { SF_FORMAT_CAF, "CAF (Apple Core Audio File)", "caf" }, +#if HAVE_EXTERNAL_LIBS + { SF_FORMAT_FLAC, "FLAC (FLAC Lossless Audio Codec)", "flac" }, +#endif + { SF_FORMAT_HTK, "HTK (HMM Tool Kit)", "htk" }, + { SF_FORMAT_SVX, "IFF (Amiga IFF/SVX8/SV16)", "iff" }, + { SF_FORMAT_MAT4, "MAT4 (GNU Octave 2.0 / Matlab 4.2)", "mat" }, + { SF_FORMAT_MAT5, "MAT5 (GNU Octave 2.1 / Matlab 5.0)", "mat" }, + { SF_FORMAT_MPC2K, "MPC (Akai MPC 2k)", "mpc" }, +#if HAVE_EXTERNAL_LIBS + { SF_FORMAT_OGG, "OGG (OGG Container format)", "oga" }, +#endif + { SF_FORMAT_PAF, "PAF (Ensoniq PARIS)", "paf" }, + { SF_FORMAT_PVF, "PVF (Portable Voice Format)", "pvf" }, + { SF_FORMAT_RAW, "RAW (header-less)", "raw" }, + { SF_FORMAT_RF64, "RF64 (RIFF 64)", "rf64" }, + { SF_FORMAT_SD2, "SD2 (Sound Designer II)", "sd2" }, + { SF_FORMAT_SDS, "SDS (Midi Sample Dump Standard)", "sds" }, + { SF_FORMAT_IRCAM, "SF (Berkeley/IRCAM/CARL)", "sf" }, + { SF_FORMAT_VOC, "VOC (Creative Labs)", "voc" }, + { SF_FORMAT_W64, "W64 (SoundFoundry WAVE 64)", "w64" }, + { SF_FORMAT_WAV, "WAV (Microsoft)", "wav" }, + { SF_FORMAT_NIST, "WAV (NIST Sphere)", "wav" }, + { SF_FORMAT_WAVEX, "WAVEX (Microsoft)", "wav" }, + { SF_FORMAT_WVE, "WVE (Psion Series 3)", "wve" }, + { SF_FORMAT_XI, "XI (FastTracker 2)", "xi" }, + +} ; /* major_formats */ + +int +psf_get_format_major_count (void) +{ return (sizeof (major_formats) / sizeof (SF_FORMAT_INFO)) ; +} /* psf_get_format_major_count */ + +int +psf_get_format_major (SF_FORMAT_INFO *data) +{ int indx ; + + if (data->format < 0 || data->format >= (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) + return SFE_BAD_COMMAND_PARAM ; + + indx = data->format ; + memcpy (data, &(major_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ; + + return 0 ; +} /* psf_get_format_major */ + +/*============================================================================ +** Subtype format info. +*/ + +static SF_FORMAT_INFO subtype_formats [] = +{ + { SF_FORMAT_PCM_S8, "Signed 8 bit PCM", NULL }, + { SF_FORMAT_PCM_16, "Signed 16 bit PCM", NULL }, + { SF_FORMAT_PCM_24, "Signed 24 bit PCM", NULL }, + { SF_FORMAT_PCM_32, "Signed 32 bit PCM", NULL }, + + { SF_FORMAT_PCM_U8, "Unsigned 8 bit PCM", NULL }, + + { SF_FORMAT_FLOAT, "32 bit float", NULL }, + { SF_FORMAT_DOUBLE, "64 bit float", NULL }, + + { SF_FORMAT_ULAW, "U-Law", NULL }, + { SF_FORMAT_ALAW, "A-Law", NULL }, + { SF_FORMAT_IMA_ADPCM, "IMA ADPCM", NULL }, + { SF_FORMAT_MS_ADPCM, "Microsoft ADPCM", NULL }, + + { SF_FORMAT_GSM610, "GSM 6.10", NULL }, + + { SF_FORMAT_G721_32, "32kbs G721 ADPCM", NULL }, + { SF_FORMAT_G723_24, "24kbs G723 ADPCM", NULL }, + + { SF_FORMAT_DWVW_12, "12 bit DWVW", NULL }, + { SF_FORMAT_DWVW_16, "16 bit DWVW", NULL }, + { SF_FORMAT_DWVW_24, "24 bit DWVW", NULL }, + { SF_FORMAT_VOX_ADPCM, "VOX ADPCM", "vox" }, + + { SF_FORMAT_DPCM_16, "16 bit DPCM", NULL }, + { SF_FORMAT_DPCM_8, "8 bit DPCM", NULL }, + +#if HAVE_EXTERNAL_LIBS + { SF_FORMAT_VORBIS, "Vorbis", NULL }, +#endif +} ; /* subtype_formats */ + +int +psf_get_format_subtype_count (void) +{ return (sizeof (subtype_formats) / sizeof (SF_FORMAT_INFO)) ; +} /* psf_get_format_subtype_count */ + +int +psf_get_format_subtype (SF_FORMAT_INFO *data) +{ int indx ; + + if (data->format < 0 || data->format >= (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) + return SFE_BAD_COMMAND_PARAM ; + + indx = data->format ; + memcpy (data, &(subtype_formats [indx]), sizeof (SF_FORMAT_INFO)) ; + + return 0 ; +} /* psf_get_format_subtype */ + +/*============================================================================== +*/ + +int +psf_get_format_info (SF_FORMAT_INFO *data) +{ int k, format ; + + if (SF_CONTAINER (data->format)) + { format = SF_CONTAINER (data->format) ; + + for (k = 0 ; k < (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++) + { if (format == major_formats [k].format) + { memcpy (data, &(major_formats [k]), sizeof (SF_FORMAT_INFO)) ; + return 0 ; + } ; + } ; + } + else if (SF_CODEC (data->format)) + { format = SF_CODEC (data->format) ; + + for (k = 0 ; k < (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++) + { if (format == subtype_formats [k].format) + { memcpy (data, &(subtype_formats [k]), sizeof (SF_FORMAT_INFO)) ; + return 0 ; + } ; + } ; + } ; + + memset (data, 0, sizeof (SF_FORMAT_INFO)) ; + + return SFE_BAD_COMMAND_PARAM ; +} /* psf_get_format_info */ + +/*============================================================================== +*/ + +double +psf_calc_signal_max (SF_PRIVATE *psf, int normalize) +{ sf_count_t position ; + double max_val, temp, *data ; + int k, len, readcount, save_state ; + + /* If the file is not seekable, there is nothing we can do. */ + if (! psf->sf.seekable) + { psf->error = SFE_NOT_SEEKABLE ; + return 0.0 ; + } ; + + if (! psf->read_double) + { psf->error = SFE_UNIMPLEMENTED ; + return 0.0 ; + } ; + + save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ; + sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ; + + /* Brute force. Read the whole file and find the biggest sample. */ + /* Get current position in file */ + position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ; + /* Go to start of file. */ + sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ; + + data = psf->u.dbuf ; + len = ARRAY_LEN (psf->u.dbuf) ; + + for (readcount = 1, max_val = 0.0 ; readcount > 0 ; /* nothing */) + { readcount = sf_read_double ((SNDFILE*) psf, data, len) ; + for (k = 0 ; k < readcount ; k++) + { temp = fabs (data [k]) ; + max_val = temp > max_val ? temp : max_val ; + } ; + } ; + + /* Return to SNDFILE to original state. */ + sf_seek ((SNDFILE*) psf, position, SEEK_SET) ; + sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ; + + return max_val ; +} /* psf_calc_signal_max */ + +int +psf_calc_max_all_channels (SF_PRIVATE *psf, double *peaks, int normalize) +{ sf_count_t position ; + double temp, *data ; + int k, len, readcount, save_state ; + int chan ; + + /* If the file is not seekable, there is nothing we can do. */ + if (! psf->sf.seekable) + return (psf->error = SFE_NOT_SEEKABLE) ; + + if (! psf->read_double) + return (psf->error = SFE_UNIMPLEMENTED) ; + + save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ; + sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ; + + memset (peaks, 0, sizeof (double) * psf->sf.channels) ; + + /* Brute force. Read the whole file and find the biggest sample for each channel. */ + position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ; /* Get current position in file */ + sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ; /* Go to start of file. */ + + len = ARRAY_LEN (psf->u.dbuf) ; + + data = psf->u.dbuf ; + + chan = 0 ; + readcount = len ; + while (readcount > 0) + { readcount = sf_read_double ((SNDFILE*) psf, data, len) ; + for (k = 0 ; k < readcount ; k++) + { temp = fabs (data [k]) ; + peaks [chan] = temp > peaks [chan] ? temp : peaks [chan] ; + chan = (chan + 1) % psf->sf.channels ; + } ; + } ; + + sf_seek ((SNDFILE*) psf, position, SEEK_SET) ; /* Return to original position. */ + + sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ; + + return 0 ; +} /* psf_calc_max_all_channels */ + +int +psf_get_signal_max (SF_PRIVATE *psf, double *peak) +{ int k ; + + if (psf->peak_info == NULL) + return SF_FALSE ; + + peak [0] = psf->peak_info->peaks [0].value ; + + for (k = 1 ; k < psf->sf.channels ; k++) + peak [0] = SF_MAX (peak [0], psf->peak_info->peaks [k].value) ; + + return SF_TRUE ; +} /* psf_get_signal_max */ + +int +psf_get_max_all_channels (SF_PRIVATE *psf, double *peaks) +{ int k ; + + if (psf->peak_info == NULL) + return SF_FALSE ; + + for (k = 0 ; k < psf->sf.channels ; k++) + peaks [k] = psf->peak_info->peaks [k].value ; + + return SF_TRUE ; +} /* psf_get_max_all_channels */ + + diff --git a/src/common.c b/src/common.c new file mode 100644 index 0000000..8aadbab --- /dev/null +++ b/src/common.c @@ -0,0 +1,1465 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include <config.h> + +#include <stdarg.h> +#include <string.h> +#include <ctype.h> +#include <math.h> +#include <time.h> +#include <sys/time.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*----------------------------------------------------------------------------------------------- +** psf_log_printf allows libsndfile internal functions to print to an internal logbuffer which +** can later be displayed. +** The format specifiers are as for printf but without the field width and other modifiers. +** Printing is performed to the logbuffer char array of the SF_PRIVATE struct. +** Printing is done in such a way as to guarantee that the log never overflows the end of the +** logbuffer array. +*/ + +static inline void +log_putchar (SF_PRIVATE *psf, char ch) +{ if (psf->logindex < SIGNED_SIZEOF (psf->logbuffer) - 1) + { psf->logbuffer [psf->logindex++] = ch ; + psf->logbuffer [psf->logindex] = 0 ; + } ; + return ; +} /* log_putchar */ + +void +psf_log_printf (SF_PRIVATE *psf, const char *format, ...) +{ va_list ap ; + unsigned int u ; + int d, tens, shift, width, width_specifier, left_align ; + char c, *strptr, istr [5], lead_char, sign_char ; + + va_start (ap, format) ; + + while ((c = *format++)) + { if (c != '%') + { log_putchar (psf, c) ; + continue ; + } ; + + if (format [0] == '%') /* Handle %% */ + { log_putchar (psf, '%') ; + format ++ ; + continue ; + } ; + + sign_char = 0 ; + left_align = SF_FALSE ; + while (1) + { switch (format [0]) + { case ' ' : + case '+' : + sign_char = format [0] ; + format ++ ; + continue ; + + case '-' : + left_align = SF_TRUE ; + format ++ ; + continue ; + + default : break ; + } ; + + break ; + } ; + + if (format [0] == 0) + break ; + + lead_char = ' ' ; + if (format [0] == '0') + lead_char = '0' ; + + width_specifier = 0 ; + while ((c = *format++) && isdigit (c)) + width_specifier = width_specifier * 10 + (c - '0') ; + + switch (c) + { case 0 : /* NULL character. */ + va_end (ap) ; + return ; + + case 's': /* string */ + strptr = va_arg (ap, char *) ; + if (strptr == NULL) + break ; + width_specifier -= strlen (strptr) ; + if (left_align == SF_FALSE) + while (width_specifier -- > 0) + log_putchar (psf, ' ') ; + while (*strptr) + log_putchar (psf, *strptr++) ; + while (width_specifier -- > 0) + log_putchar (psf, ' ') ; + break ; + + case 'd': /* int */ + d = va_arg (ap, int) ; + + if (d < 0) + { d = -d ; + sign_char = '-' ; + if (lead_char != '0' && left_align == SF_FALSE) + width_specifier -- ; + } ; + + tens = 1 ; + width = 1 ; + while (d / tens >= 10) + { tens *= 10 ; + width ++ ; + } ; + + width_specifier -= width ; + + if (sign_char == ' ') + { log_putchar (psf, ' ') ; + width_specifier -- ; + } ; + + if (left_align == SF_FALSE && lead_char != '0') + { if (sign_char == '+') + width_specifier -- ; + + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + } ; + + if (sign_char == '+' || sign_char == '-') + { log_putchar (psf, sign_char) ; + width_specifier -- ; + } ; + + if (left_align == SF_FALSE) + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + + while (tens > 0) + { log_putchar (psf, '0' + d / tens) ; + d %= tens ; + tens /= 10 ; + } ; + + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + break ; + + case 'D': /* sf_count_t */ + { sf_count_t D, Tens ; + + D = va_arg (ap, sf_count_t) ; + + if (D == 0) + { while (-- width_specifier > 0) + log_putchar (psf, lead_char) ; + log_putchar (psf, '0') ; + break ; + } + if (D < 0) + { log_putchar (psf, '-') ; + D = -D ; + } ; + Tens = 1 ; + width = 1 ; + while (D / Tens >= 10) + { Tens *= 10 ; + width ++ ; + } ; + + while (width_specifier > width) + { log_putchar (psf, lead_char) ; + width_specifier-- ; + } ; + + while (Tens > 0) + { log_putchar (psf, '0' + D / Tens) ; + D %= Tens ; + Tens /= 10 ; + } ; + } ; + break ; + + case 'u': /* unsigned int */ + u = va_arg (ap, unsigned int) ; + + tens = 1 ; + width = 1 ; + while (u / tens >= 10) + { tens *= 10 ; + width ++ ; + } ; + + width_specifier -= width ; + + if (sign_char == ' ') + { log_putchar (psf, ' ') ; + width_specifier -- ; + } ; + + if (left_align == SF_FALSE && lead_char != '0') + { if (sign_char == '+') + width_specifier -- ; + + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + } ; + + if (sign_char == '+' || sign_char == '-') + { log_putchar (psf, sign_char) ; + width_specifier -- ; + } ; + + if (left_align == SF_FALSE) + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + + while (tens > 0) + { log_putchar (psf, '0' + u / tens) ; + u %= tens ; + tens /= 10 ; + } ; + + while (width_specifier -- > 0) + log_putchar (psf, lead_char) ; + break ; + + case 'c': /* char */ + c = va_arg (ap, int) & 0xFF ; + log_putchar (psf, c) ; + break ; + + case 'x': /* hex */ + case 'X': /* hex */ + d = va_arg (ap, int) ; + + if (d == 0) + { while (--width_specifier > 0) + log_putchar (psf, lead_char) ; + log_putchar (psf, '0') ; + break ; + } ; + shift = 28 ; + width = (width_specifier < 8) ? 8 : width_specifier ; + while (! ((0xF << shift) & d)) + { shift -= 4 ; + width -- ; + } ; + + while (width > 0 && width_specifier > width) + { log_putchar (psf, lead_char) ; + width_specifier-- ; + } ; + + while (shift >= 0) + { c = (d >> shift) & 0xF ; + log_putchar (psf, (c > 9) ? c + 'A' - 10 : c + '0') ; + shift -= 4 ; + } ; + break ; + + case 'M': /* int2str */ + d = va_arg (ap, int) ; + if (CPU_IS_LITTLE_ENDIAN) + { istr [0] = d & 0xFF ; + istr [1] = (d >> 8) & 0xFF ; + istr [2] = (d >> 16) & 0xFF ; + istr [3] = (d >> 24) & 0xFF ; + } + else + { istr [3] = d & 0xFF ; + istr [2] = (d >> 8) & 0xFF ; + istr [1] = (d >> 16) & 0xFF ; + istr [0] = (d >> 24) & 0xFF ; + } ; + istr [4] = 0 ; + strptr = istr ; + while (*strptr) + { c = *strptr++ ; + log_putchar (psf, c) ; + } ; + break ; + + default : + log_putchar (psf, '*') ; + log_putchar (psf, c) ; + log_putchar (psf, '*') ; + break ; + } /* switch */ + } /* while */ + + va_end (ap) ; + return ; +} /* psf_log_printf */ + +/*----------------------------------------------------------------------------------------------- +** ASCII header printf functions. +** Some formats (ie NIST) use ascii text in their headers. +** Format specifiers are the same as the standard printf specifiers (uses vsnprintf). +** If this generates a compile error on any system, the author should be notified +** so an alternative vsnprintf can be provided. +*/ + +void +psf_asciiheader_printf (SF_PRIVATE *psf, const char *format, ...) +{ va_list argptr ; + int maxlen ; + char *start ; + + maxlen = strlen ((char*) psf->header) ; + start = ((char*) psf->header) + maxlen ; + maxlen = sizeof (psf->header) - maxlen ; + + va_start (argptr, format) ; + vsnprintf (start, maxlen, format, argptr) ; + va_end (argptr) ; + + /* Make sure the string is properly terminated. */ + start [maxlen - 1] = 0 ; + + psf->headindex = strlen ((char*) psf->header) ; + + return ; +} /* psf_asciiheader_printf */ + +/*----------------------------------------------------------------------------------------------- +** Binary header writing functions. Returns number of bytes written. +** +** Format specifiers for psf_binheader_writef are as follows +** m - marker - four bytes - no endian manipulation +** +** e - all following numerical values will be little endian +** E - all following numerical values will be big endian +** +** t - all following O types will be truncated to 4 bytes +** T - switch off truncation of all following O types +** +** 1 - single byte value +** 2 - two byte value +** 3 - three byte value +** 4 - four byte value +** 8 - eight byte value (sometimes written as 4 bytes) +** +** s - string preceded by a four byte length +** S - string including null terminator +** f - floating point data +** d - double precision floating point data +** h - 16 binary bytes value +** +** b - binary data (see below) +** z - zero bytes (ses below) +** j - jump forwards or backwards +** +** To write a word followed by an int (both little endian) use: +** psf_binheader_writef ("e24", wordval, longval) ; +** +** To write binary data use: +** psf_binheader_writef ("b", &bindata, sizeof (bindata)) ; +** +** To write N zero bytes use: +** NOTE: due to platform issues (ie x86-64) you should cast the +** argument to size_t or ensure the variable type is size_t. +** psf_binheader_writef ("z", N) ; +*/ + +/* These macros may seem a bit messy but do prevent problems with processors which +** seg. fault when asked to write an int or short to a non-int/short aligned address. +*/ + +static inline void +header_put_byte (SF_PRIVATE *psf, char x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 1) + psf->header [psf->headindex++] = x ; +} /* header_put_byte */ + +#if (CPU_IS_BIG_ENDIAN == 1) +static inline void +header_put_marker (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 4) + { psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_marker */ + +#elif (CPU_IS_LITTLE_ENDIAN == 1) +static inline void +header_put_marker (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 4) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 24) ; + } ; +} /* header_put_marker */ + +#else +# error "Cannot determine endian-ness of processor." +#endif + + +static inline void +header_put_be_short (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 2) + { psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_be_short */ + +static inline void +header_put_le_short (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 2) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + } ; +} /* header_put_le_short */ + +static inline void +header_put_be_3byte (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 3) + { psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_be_3byte */ + +static inline void +header_put_le_3byte (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 3) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = (x >> 16) ; + } ; +} /* header_put_le_3byte */ + +static inline void +header_put_be_int (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 4) + { psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_be_int */ + +static inline void +header_put_le_int (SF_PRIVATE *psf, int x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 4) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 24) ; + } ; +} /* header_put_le_int */ + +#if (SIZEOF_SF_COUNT_T == 4) + +static inline void +header_put_be_8byte (SF_PRIVATE *psf, sf_count_t x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 8) + { psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_be_8byte */ + +static inline void +header_put_le_8byte (SF_PRIVATE *psf, sf_count_t x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 8) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + psf->header [psf->headindex++] = 0 ; + } ; +} /* header_put_le_8byte */ + +#elif (SIZEOF_SF_COUNT_T == 8) + +static inline void +header_put_be_8byte (SF_PRIVATE *psf, sf_count_t x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 8) + { psf->header [psf->headindex++] = (x >> 56) ; + psf->header [psf->headindex++] = (x >> 48) ; + psf->header [psf->headindex++] = (x >> 40) ; + psf->header [psf->headindex++] = (x >> 32) ; + psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = x ; + } ; +} /* header_put_be_8byte */ + +static inline void +header_put_le_8byte (SF_PRIVATE *psf, sf_count_t x) +{ if (psf->headindex < SIGNED_SIZEOF (psf->header) - 8) + { psf->header [psf->headindex++] = x ; + psf->header [psf->headindex++] = (x >> 8) ; + psf->header [psf->headindex++] = (x >> 16) ; + psf->header [psf->headindex++] = (x >> 24) ; + psf->header [psf->headindex++] = (x >> 32) ; + psf->header [psf->headindex++] = (x >> 40) ; + psf->header [psf->headindex++] = (x >> 48) ; + psf->header [psf->headindex++] = (x >> 56) ; + } ; +} /* header_put_le_8byte */ + +#else +#error "SIZEOF_SF_COUNT_T is not defined." +#endif + +int +psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) +{ va_list argptr ; + sf_count_t countdata ; + unsigned long longdata ; + unsigned int data ; + float floatdata ; + double doubledata ; + void *bindata ; + size_t size ; + char c, *strptr ; + int count = 0, trunc_8to4 ; + + trunc_8to4 = SF_FALSE ; + + va_start (argptr, format) ; + + while ((c = *format++)) + { switch (c) + { case ' ' : /* Do nothing. Just used to space out format string. */ + break ; + + case 'e' : /* All conversions are now from LE to host. */ + psf->rwf_endian = SF_ENDIAN_LITTLE ; + break ; + + case 'E' : /* All conversions are now from BE to host. */ + psf->rwf_endian = SF_ENDIAN_BIG ; + break ; + + case 't' : /* All 8 byte values now get written as 4 bytes. */ + trunc_8to4 = SF_TRUE ; + break ; + + case 'T' : /* All 8 byte values now get written as 8 bytes. */ + trunc_8to4 = SF_FALSE ; + break ; + + case 'm' : + data = va_arg (argptr, unsigned int) ; + header_put_marker (psf, data) ; + count += 4 ; + break ; + + case '1' : + data = va_arg (argptr, unsigned int) ; + header_put_byte (psf, data) ; + count += 1 ; + break ; + + case '2' : + data = va_arg (argptr, unsigned int) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + { header_put_be_short (psf, data) ; + } + else + { header_put_le_short (psf, data) ; + } ; + count += 2 ; + break ; + + case '3' : /* tribyte */ + data = va_arg (argptr, unsigned int) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + { header_put_be_3byte (psf, data) ; + } + else + { header_put_le_3byte (psf, data) ; + } ; + count += 3 ; + break ; + + case '4' : + data = va_arg (argptr, unsigned int) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + { header_put_be_int (psf, data) ; + } + else + { header_put_le_int (psf, data) ; + } ; + count += 4 ; + break ; + + case '8' : + countdata = va_arg (argptr, sf_count_t) ; + if (psf->rwf_endian == SF_ENDIAN_BIG && trunc_8to4 == SF_FALSE) + { header_put_be_8byte (psf, countdata) ; + count += 8 ; + } + else if (psf->rwf_endian == SF_ENDIAN_LITTLE && trunc_8to4 == SF_FALSE) + { header_put_le_8byte (psf, countdata) ; + count += 8 ; + } + else if (psf->rwf_endian == SF_ENDIAN_BIG && trunc_8to4 == SF_TRUE) + { longdata = countdata & 0xFFFFFFFF ; + header_put_be_int (psf, longdata) ; + count += 4 ; + } + else if (psf->rwf_endian == SF_ENDIAN_LITTLE && trunc_8to4 == SF_TRUE) + { longdata = countdata & 0xFFFFFFFF ; + header_put_le_int (psf, longdata) ; + count += 4 ; + } + break ; + + case 'f' : + /* Floats are passed as doubles. Is this always true? */ + floatdata = (float) va_arg (argptr, double) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + float32_be_write (floatdata, psf->header + psf->headindex) ; + else + float32_le_write (floatdata, psf->header + psf->headindex) ; + psf->headindex += 4 ; + count += 4 ; + break ; + + case 'd' : + doubledata = va_arg (argptr, double) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + double64_be_write (doubledata, psf->header + psf->headindex) ; + else + double64_le_write (doubledata, psf->header + psf->headindex) ; + psf->headindex += 8 ; + count += 8 ; + break ; + + case 's' : + /* Write a C string (guaranteed to have a zero terminator). */ + strptr = va_arg (argptr, char *) ; + size = strlen (strptr) + 1 ; + size += (size & 1) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + header_put_be_int (psf, size) ; + else + header_put_le_int (psf, size) ; + memcpy (&(psf->header [psf->headindex]), strptr, size) ; + psf->headindex += size ; + psf->header [psf->headindex - 1] = 0 ; + count += 4 + size ; + break ; + + case 'S' : + /* + ** Write an AIFF style string (no zero terminator but possibly + ** an extra pad byte if the string length is odd). + */ + strptr = va_arg (argptr, char *) ; + size = strlen (strptr) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + header_put_be_int (psf, size) ; + else + header_put_le_int (psf, size) ; + memcpy (&(psf->header [psf->headindex]), strptr, size + 1) ; + size += (size & 1) ; + psf->headindex += size ; + psf->header [psf->headindex] = 0 ; + count += 4 + size ; + break ; + + case 'b' : + bindata = va_arg (argptr, void *) ; + size = va_arg (argptr, size_t) ; + memcpy (&(psf->header [psf->headindex]), bindata, size) ; + psf->headindex += size ; + count += size ; + break ; + + case 'z' : + size = va_arg (argptr, size_t) ; + count += size ; + while (size) + { psf->header [psf->headindex] = 0 ; + psf->headindex ++ ; + size -- ; + } ; + break ; + + case 'h' : + bindata = va_arg (argptr, void *) ; + memcpy (&(psf->header [psf->headindex]), bindata, 16) ; + psf->headindex += 16 ; + count += 16 ; + break ; + + case 'j' : + size = va_arg (argptr, size_t) ; + psf->headindex += size ; + count = size ; + break ; + + default : + psf_log_printf (psf, "*** Invalid format specifier `%c'\n", c) ; + psf->error = SFE_INTERNAL ; + break ; + } ; + } ; + + va_end (argptr) ; + return count ; +} /* psf_binheader_writef */ + +/*----------------------------------------------------------------------------------------------- +** Binary header reading functions. Returns number of bytes read. +** +** Format specifiers are the same as for header write function above with the following +** additions: +** +** p - jump a given number of position from start of file. +** +** If format is NULL, psf_binheader_readf returns the current offset. +*/ + +#if (CPU_IS_BIG_ENDIAN == 1) +#define GET_MARKER(ptr) ( ((ptr) [0] << 24) | ((ptr) [1] << 16) | \ + ((ptr) [2] << 8) | ((ptr) [3]) ) + +#elif (CPU_IS_LITTLE_ENDIAN == 1) +#define GET_MARKER(ptr) ( ((ptr) [0]) | ((ptr) [1] << 8) | \ + ((ptr) [2] << 16) | ((ptr) [3] << 24) ) + +#else +# error "Cannot determine endian-ness of processor." +#endif + +#define GET_LE_SHORT(ptr) ( ((ptr) [1] << 8) | ((ptr) [0]) ) +#define GET_BE_SHORT(ptr) ( ((ptr) [0] << 8) | ((ptr) [1]) ) + +#define GET_LE_3BYTE(ptr) ( ((ptr) [2] << 16) | ((ptr) [1] << 8) | ((ptr) [0]) ) +#define GET_BE_3BYTE(ptr) ( ((ptr) [0] << 16) | ((ptr) [1] << 8) | ((ptr) [2]) ) + +#define GET_LE_INT(ptr) ( ((ptr) [3] << 24) | ((ptr) [2] << 16) | \ + ((ptr) [1] << 8) | ((ptr) [0]) ) + +#define GET_BE_INT(ptr) ( ((ptr) [0] << 24) | ((ptr) [1] << 16) | \ + ((ptr) [2] << 8) | ((ptr) [3]) ) + +#define GET_LE_8BYTE(ptr) ( (((sf_count_t) (ptr) [7]) << 56) | (((sf_count_t) (ptr) [6]) << 48) | \ + (((sf_count_t) (ptr) [5]) << 40) | (((sf_count_t) (ptr) [4]) << 32) | \ + (((sf_count_t) (ptr) [3]) << 24) | (((sf_count_t) (ptr) [2]) << 16) | \ + (((sf_count_t) (ptr) [1]) << 8 ) | ((ptr) [0])) + +#define GET_BE_8BYTE(ptr) ( (((sf_count_t) (ptr) [0]) << 56) | (((sf_count_t) (ptr) [1]) << 48) | \ + (((sf_count_t) (ptr) [2]) << 40) | (((sf_count_t) (ptr) [3]) << 32) | \ + (((sf_count_t) (ptr) [4]) << 24) | (((sf_count_t) (ptr) [5]) << 16) | \ + (((sf_count_t) (ptr) [6]) << 8 ) | ((ptr) [7])) + + + +static int +header_read (SF_PRIVATE *psf, void *ptr, int bytes) +{ int count = 0 ; + + if (psf->headindex >= SIGNED_SIZEOF (psf->header)) + { memset (ptr, 0, SIGNED_SIZEOF (psf->header) - psf->headindex) ; + + /* This is the best that we can do. */ + psf_fseek (psf, bytes, SEEK_CUR) ; + return bytes ; + } ; + + if (psf->headindex + bytes > SIGNED_SIZEOF (psf->header)) + { int most ; + + most = SIGNED_SIZEOF (psf->header) - psf->headindex ; + psf_fread (psf->header + psf->headend, 1, most, psf) ; + memset ((char *) ptr + most, 0, bytes - most) ; + + psf_fseek (psf, bytes - most, SEEK_CUR) ; + return bytes ; + } ; + + if (psf->headindex + bytes > psf->headend) + { count = psf_fread (psf->header + psf->headend, 1, bytes - (psf->headend - psf->headindex), psf) ; + if (count != bytes - (int) (psf->headend - psf->headindex)) + { psf_log_printf (psf, "Error : psf_fread returned short count.\n") ; + return 0 ; + } ; + psf->headend += count ; + } ; + + memcpy (ptr, psf->header + psf->headindex, bytes) ; + psf->headindex += bytes ; + + return bytes ; +} /* header_read */ + +static void +header_seek (SF_PRIVATE *psf, sf_count_t position, int whence) +{ + + switch (whence) + { case SEEK_SET : + if (position > SIGNED_SIZEOF (psf->header)) + { /* Too much header to cache so just seek instead. */ + psf_fseek (psf, position, whence) ; + return ; + } ; + if (position > psf->headend) + psf->headend += psf_fread (psf->header + psf->headend, 1, position - psf->headend, psf) ; + psf->headindex = position ; + break ; + + case SEEK_CUR : + if (psf->headindex + position < 0) + break ; + + if (psf->headindex >= SIGNED_SIZEOF (psf->header)) + { psf_fseek (psf, position, whence) ; + return ; + } ; + + if (psf->headindex + position <= psf->headend) + { psf->headindex += position ; + break ; + } ; + + if (psf->headindex + position > SIGNED_SIZEOF (psf->header)) + { /* Need to jump this without caching it. */ + psf->headindex = psf->headend ; + psf_fseek (psf, position, SEEK_CUR) ; + break ; + } ; + + psf->headend += psf_fread (psf->header + psf->headend, 1, position - (psf->headend - psf->headindex), psf) ; + psf->headindex = psf->headend ; + break ; + + case SEEK_END : + default : + psf_log_printf (psf, "Bad whence param in header_seek().\n") ; + break ; + } ; + + return ; +} /* header_seek */ + +static int +header_gets (SF_PRIVATE *psf, char *ptr, int bufsize) +{ + int k ; + + for (k = 0 ; k < bufsize - 1 ; k++) + { if (psf->headindex < psf->headend) + { ptr [k] = psf->header [psf->headindex] ; + psf->headindex ++ ; + } + else + { psf->headend += psf_fread (psf->header + psf->headend, 1, 1, psf) ; + ptr [k] = psf->header [psf->headindex] ; + psf->headindex = psf->headend ; + } ; + + if (ptr [k] == '\n') + break ; + } ; + + ptr [k] = 0 ; + + return k ; +} /* header_gets */ + +int +psf_binheader_readf (SF_PRIVATE *psf, char const *format, ...) +{ va_list argptr ; + sf_count_t *countptr, countdata ; + unsigned char *ucptr, sixteen_bytes [16] ; + unsigned int *intptr, intdata ; + unsigned short *shortptr ; + char *charptr ; + float *floatptr ; + double *doubleptr ; + char c ; + int byte_count = 0, count ; + + if (! format) + return psf_ftell (psf) ; + + va_start (argptr, format) ; + + while ((c = *format++)) + { switch (c) + { case 'e' : /* All conversions are now from LE to host. */ + psf->rwf_endian = SF_ENDIAN_LITTLE ; + break ; + + case 'E' : /* All conversions are now from BE to host. */ + psf->rwf_endian = SF_ENDIAN_BIG ; + break ; + + case 'm' : + intptr = va_arg (argptr, unsigned int*) ; + ucptr = (unsigned char*) intptr ; + byte_count += header_read (psf, ucptr, sizeof (int)) ; + *intptr = GET_MARKER (ucptr) ; + break ; + + case 'h' : + intptr = va_arg (argptr, unsigned int*) ; + ucptr = (unsigned char*) intptr ; + byte_count += header_read (psf, sixteen_bytes, sizeof (sixteen_bytes)) ; + { int k ; + intdata = 0 ; + for (k = 0 ; k < 16 ; k++) + intdata ^= sixteen_bytes [k] << k ; + } + *intptr = intdata ; + break ; + + case '1' : + charptr = va_arg (argptr, char*) ; + *charptr = 0 ; + byte_count += header_read (psf, charptr, sizeof (char)) ; + break ; + + case '2' : + shortptr = va_arg (argptr, unsigned short*) ; + *shortptr = 0 ; + ucptr = (unsigned char*) shortptr ; + byte_count += header_read (psf, ucptr, sizeof (short)) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + *shortptr = GET_BE_SHORT (ucptr) ; + else + *shortptr = GET_LE_SHORT (ucptr) ; + break ; + + case '3' : + intptr = va_arg (argptr, unsigned int*) ; + *intptr = 0 ; + byte_count += header_read (psf, sixteen_bytes, 3) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + *intptr = GET_BE_3BYTE (sixteen_bytes) ; + else + *intptr = GET_LE_3BYTE (sixteen_bytes) ; + break ; + + case '4' : + intptr = va_arg (argptr, unsigned int*) ; + *intptr = 0 ; + ucptr = (unsigned char*) intptr ; + byte_count += header_read (psf, ucptr, sizeof (int)) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + *intptr = GET_BE_INT (ucptr) ; + else + *intptr = GET_LE_INT (ucptr) ; + break ; + + case '8' : + countptr = va_arg (argptr, sf_count_t *) ; + *countptr = 0 ; + byte_count += header_read (psf, sixteen_bytes, 8) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + countdata = GET_BE_8BYTE (sixteen_bytes) ; + else + countdata = GET_LE_8BYTE (sixteen_bytes) ; + *countptr = countdata ; + break ; + + case 'f' : /* Float conversion */ + floatptr = va_arg (argptr, float *) ; + *floatptr = 0.0 ; + byte_count += header_read (psf, floatptr, sizeof (float)) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + *floatptr = float32_be_read ((unsigned char*) floatptr) ; + else + *floatptr = float32_le_read ((unsigned char*) floatptr) ; + break ; + + case 'd' : /* double conversion */ + doubleptr = va_arg (argptr, double *) ; + *doubleptr = 0.0 ; + byte_count += header_read (psf, doubleptr, sizeof (double)) ; + if (psf->rwf_endian == SF_ENDIAN_BIG) + *doubleptr = double64_be_read ((unsigned char*) doubleptr) ; + else + *doubleptr = double64_le_read ((unsigned char*) doubleptr) ; + break ; + + case 's' : + psf_log_printf (psf, "Format conversion 's' not implemented yet.\n") ; + /* + strptr = va_arg (argptr, char *) ; + size = strlen (strptr) + 1 ; + size += (size & 1) ; + longdata = H2LE_INT (size) ; + get_int (psf, longdata) ; + memcpy (&(psf->header [psf->headindex]), strptr, size) ; + psf->headindex += size ; + */ + break ; + + case 'b' : + charptr = va_arg (argptr, char*) ; + count = va_arg (argptr, size_t) ; + if (count > 0) + byte_count += header_read (psf, charptr, count) ; + break ; + + case 'G' : + charptr = va_arg (argptr, char*) ; + count = va_arg (argptr, size_t) ; + if (count > 0) + byte_count += header_gets (psf, charptr, count) ; + break ; + + case 'z' : + psf_log_printf (psf, "Format conversion 'z' not implemented yet.\n") ; + /* + size = va_arg (argptr, size_t) ; + while (size) + { psf->header [psf->headindex] = 0 ; + psf->headindex ++ ; + size -- ; + } ; + */ + break ; + + case 'p' : + /* Get the seek position first. */ + count = va_arg (argptr, size_t) ; + header_seek (psf, count, SEEK_SET) ; + byte_count = count ; + break ; + + case 'j' : + /* Get the seek position first. */ + count = va_arg (argptr, size_t) ; + header_seek (psf, count, SEEK_CUR) ; + byte_count += count ; + break ; + + default : + psf_log_printf (psf, "*** Invalid format specifier `%c'\n", c) ; + psf->error = SFE_INTERNAL ; + break ; + } ; + } ; + + va_end (argptr) ; + + return byte_count ; +} /* psf_binheader_readf */ + +/*----------------------------------------------------------------------------------------------- +*/ + +sf_count_t +psf_default_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t samples_from_start) +{ sf_count_t position, retval ; + + if (! (psf->blockwidth && psf->dataoffset >= 0)) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (! psf->sf.seekable) + { psf->error = SFE_NOT_SEEKABLE ; + return PSF_SEEK_ERROR ; + } ; + + position = psf->dataoffset + psf->blockwidth * samples_from_start ; + + if ((retval = psf_fseek (psf, position, SEEK_SET)) != position) + { psf->error = SFE_SEEK_FAILED ; + return PSF_SEEK_ERROR ; + } ; + + return samples_from_start ; +} /* psf_default_seek */ + +/*----------------------------------------------------------------------------------------------- +*/ + +void +psf_hexdump (const void *ptr, int len) +{ const char *data ; + char ascii [17] ; + int k, m ; + + if ((data = ptr) == NULL) + return ; + if (len <= 0) + return ; + + puts ("") ; + for (k = 0 ; k < len ; k += 16) + { memset (ascii, ' ', sizeof (ascii)) ; + + printf ("%08X: ", k) ; + for (m = 0 ; m < 16 && k + m < len ; m++) + { printf (m == 8 ? " %02X " : "%02X ", data [k + m] & 0xFF) ; + ascii [m] = psf_isprint (data [k + m]) ? data [k + m] : '.' ; + } ; + + if (m <= 8) printf (" ") ; + for ( ; m < 16 ; m++) printf (" ") ; + + ascii [16] = 0 ; + printf (" %s\n", ascii) ; + } ; + + puts ("") ; +} /* psf_hexdump */ + +void +psf_log_SF_INFO (SF_PRIVATE *psf) +{ psf_log_printf (psf, "---------------------------------\n") ; + + psf_log_printf (psf, " Sample rate : %d\n", psf->sf.samplerate) ; + psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ; + psf_log_printf (psf, " Channels : %d\n", psf->sf.channels) ; + + psf_log_printf (psf, " Format : 0x%X\n", psf->sf.format) ; + psf_log_printf (psf, " Sections : %d\n", psf->sf.sections) ; + psf_log_printf (psf, " Seekable : %s\n", psf->sf.seekable ? "TRUE" : "FALSE") ; + + psf_log_printf (psf, "---------------------------------\n") ; +} /* psf_dump_SFINFO */ + +/*======================================================================================== +*/ + +void* +psf_memset (void *s, int c, sf_count_t len) +{ char *ptr ; + int setcount ; + + ptr = (char *) s ; + + while (len > 0) + { setcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + memset (ptr, c, setcount) ; + + ptr += setcount ; + len -= setcount ; + } ; + + return s ; +} /* psf_memset */ + +SF_INSTRUMENT * +psf_instrument_alloc (void) +{ SF_INSTRUMENT *instr ; + + instr = calloc (1, sizeof (SF_INSTRUMENT)) ; + + if (instr == NULL) + return NULL ; + + /* Set non-zero default values. */ + instr->basenote = -1 ; + instr->velocity_lo = -1 ; + instr->velocity_hi = -1 ; + instr->key_lo = -1 ; + instr->key_hi = -1 ; + + return instr ; +} /* psf_instrument_alloc */ + +void +psf_sanitize_string (char * cptr, int len) +{ + do + { + len -- ; + cptr [len] = psf_isprint (cptr [len]) ? cptr [len] : '.' ; + } + while (len > 0) ; +} /* psf_sanitize_string */ + +void +psf_get_date_str (char *str, int maxlen) +{ time_t current ; + struct tm timedata, *tmptr ; + + time (¤t) ; + +#if defined (HAVE_GMTIME_R) + /* If the re-entrant version is available, use it. */ + tmptr = gmtime_r (¤t, &timedata) ; +#elif defined (HAVE_GMTIME) + /* Otherwise use the standard one and copy the data to local storage. */ + tmptr = gmtime (¤t) ; + memcpy (&timedata, tmptr, sizeof (timedata)) ; +#else + tmptr = NULL ; +#endif + + if (tmptr) + snprintf (str, maxlen, "%4d-%02d-%02d %02d:%02d:%02d UTC", + 1900 + timedata.tm_year, timedata.tm_mon, timedata.tm_mday, + timedata.tm_hour, timedata.tm_min, timedata.tm_sec) ; + else + snprintf (str, maxlen, "Unknown date") ; + + return ; +} /* psf_get_date_str */ + +int +subformat_to_bytewidth (int format) +{ + switch (format) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_S8 : + return 1 ; + case SF_FORMAT_PCM_16 : + return 2 ; + case SF_FORMAT_PCM_24 : + return 3 ; + case SF_FORMAT_PCM_32 : + case SF_FORMAT_FLOAT : + return 4 ; + case SF_FORMAT_DOUBLE : + return 8 ; + } ; + + return 0 ; +} /* subformat_to_bytewidth */ + +int +s_bitwidth_to_subformat (int bits) +{ static int array [] = + { SF_FORMAT_PCM_S8, SF_FORMAT_PCM_16, SF_FORMAT_PCM_24, SF_FORMAT_PCM_32 + } ; + + if (bits < 8 || bits > 32) + return 0 ; + + return array [((bits + 7) / 8) - 1] ; +} /* bitwidth_to_subformat */ + +int +u_bitwidth_to_subformat (int bits) +{ static int array [] = + { SF_FORMAT_PCM_U8, SF_FORMAT_PCM_16, SF_FORMAT_PCM_24, SF_FORMAT_PCM_32 + } ; + + if (bits < 8 || bits > 32) + return 0 ; + + return array [((bits + 7) / 8) - 1] ; +} /* bitwidth_to_subformat */ + +/* +** psf_rand_int32 : Not crypto quality, but more than adequate for things +** like stream serial numbers in Ogg files or the unique_id field of the +** SF_PRIVATE struct. +*/ + +int32_t +psf_rand_int32 (void) +{ static int32_t value = -1 ; + int k, count ; + + if (value == -1) + { +#if HAVE_GETTIMEOFDAY + struct timeval tv ; + gettimeofday (&tv, NULL) ; + value = tv.tv_sec + tv.tv_usec ; +#else + value = time (NULL) ; +#endif + } ; + + count = 4 + (value & 7) ; + for (k = 0 ; k < count ; k++) + value = 11117 * value + 211231 ; + + return value ; +} /* psf_rand_int32 */ + +void +append_snprintf (char * dest, size_t maxlen, const char * fmt, ...) +{ size_t len = strlen (dest) ; + + if (len < maxlen) + { va_list ap ; + + va_start (ap, fmt) ; + vsnprintf (dest + len, maxlen - len, fmt, ap) ; + va_end (ap) ; + } ; + + return ; +} /* append_snprintf */ + + +void +psf_strlcpy_crlf (char *dest, const char *src, size_t destmax, size_t srcmax) +{ /* Must be minus 2 so it can still expand a single trailing '\n' or '\r'. */ + char * destend = dest + destmax - 2 ; + const char * srcend = src + srcmax ; + + while (dest < destend && src < srcend) + { if ((src [0] == '\r' && src [1] == '\n') || (src [0] == '\n' && src [1] == '\r')) + { *dest++ = '\r' ; + *dest++ = '\n' ; + src += 2 ; + continue ; + } ; + + if (src [0] == '\r') + { *dest++ = '\r' ; + *dest++ = '\n' ; + src += 1 ; + continue ; + } ; + + if (src [0] == '\n') + { *dest++ = '\r' ; + *dest++ = '\n' ; + src += 1 ; + continue ; + } ; + + *dest++ = *src++ ; + } ; + + /* Make sure dest is terminated. */ + *dest = 0 ; +} /* psf_strlcpy_crlf */ + +/*============================================================================== +*/ + +#define CASE_NAME(x) case x : return #x ; break ; + +const char * +str_of_major_format (int format) +{ switch (SF_CONTAINER (format)) + { CASE_NAME (SF_FORMAT_WAV) ; + CASE_NAME (SF_FORMAT_AIFF) ; + CASE_NAME (SF_FORMAT_AU) ; + CASE_NAME (SF_FORMAT_RAW) ; + CASE_NAME (SF_FORMAT_PAF) ; + CASE_NAME (SF_FORMAT_SVX) ; + CASE_NAME (SF_FORMAT_NIST) ; + CASE_NAME (SF_FORMAT_VOC) ; + CASE_NAME (SF_FORMAT_IRCAM) ; + CASE_NAME (SF_FORMAT_W64) ; + CASE_NAME (SF_FORMAT_MAT4) ; + CASE_NAME (SF_FORMAT_MAT5) ; + CASE_NAME (SF_FORMAT_PVF) ; + CASE_NAME (SF_FORMAT_XI) ; + CASE_NAME (SF_FORMAT_HTK) ; + CASE_NAME (SF_FORMAT_SDS) ; + CASE_NAME (SF_FORMAT_AVR) ; + CASE_NAME (SF_FORMAT_WAVEX) ; + CASE_NAME (SF_FORMAT_SD2) ; + CASE_NAME (SF_FORMAT_FLAC) ; + CASE_NAME (SF_FORMAT_CAF) ; + CASE_NAME (SF_FORMAT_WVE) ; + CASE_NAME (SF_FORMAT_OGG) ; + default : + break ; + } ; + + return "BAD_MAJOR_FORMAT" ; +} /* str_of_major_format */ + +const char * +str_of_minor_format (int format) +{ switch (SF_CODEC (format)) + { CASE_NAME (SF_FORMAT_PCM_S8) ; + CASE_NAME (SF_FORMAT_PCM_16) ; + CASE_NAME (SF_FORMAT_PCM_24) ; + CASE_NAME (SF_FORMAT_PCM_32) ; + CASE_NAME (SF_FORMAT_PCM_U8) ; + CASE_NAME (SF_FORMAT_FLOAT) ; + CASE_NAME (SF_FORMAT_DOUBLE) ; + CASE_NAME (SF_FORMAT_ULAW) ; + CASE_NAME (SF_FORMAT_ALAW) ; + CASE_NAME (SF_FORMAT_IMA_ADPCM) ; + CASE_NAME (SF_FORMAT_MS_ADPCM) ; + CASE_NAME (SF_FORMAT_GSM610) ; + CASE_NAME (SF_FORMAT_VOX_ADPCM) ; + CASE_NAME (SF_FORMAT_G721_32) ; + CASE_NAME (SF_FORMAT_G723_24) ; + CASE_NAME (SF_FORMAT_G723_40) ; + CASE_NAME (SF_FORMAT_DWVW_12) ; + CASE_NAME (SF_FORMAT_DWVW_16) ; + CASE_NAME (SF_FORMAT_DWVW_24) ; + CASE_NAME (SF_FORMAT_DWVW_N) ; + CASE_NAME (SF_FORMAT_DPCM_8) ; + CASE_NAME (SF_FORMAT_DPCM_16) ; + CASE_NAME (SF_FORMAT_VORBIS) ; + default : + break ; + } ; + + return "BAD_MINOR_FORMAT" ; +} /* str_of_minor_format */ + +const char * +str_of_open_mode (int mode) +{ switch (mode) + { CASE_NAME (SFM_READ) ; + CASE_NAME (SFM_WRITE) ; + CASE_NAME (SFM_RDWR) ; + + default : + break ; + } ; + + return "BAD_MODE" ; +} /* str_of_open_mode */ + +const char * +str_of_endianness (int end) +{ switch (end) + { CASE_NAME (SF_ENDIAN_BIG) ; + CASE_NAME (SF_ENDIAN_LITTLE) ; + CASE_NAME (SF_ENDIAN_CPU) ; + default : + break ; + } ; + + /* Zero length string for SF_ENDIAN_FILE. */ + return "" ; +} /* str_of_endianness */ diff --git a/src/common.h b/src/common.h new file mode 100644 index 0000000..ed57804 --- /dev/null +++ b/src/common.h @@ -0,0 +1,919 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifndef SNDFILE_COMMON_H +#define SNDFILE_COMMON_H + +#include "sfconfig.h" + +#include <stdlib.h> +#include <string.h> + +#if HAVE_STDINT_H +#include <stdint.h> +#elif HAVE_INTTYPES_H +#include <inttypes.h> +#endif + +#ifndef SNDFILE_H +#include "sndfile.h" +#endif + +#ifdef __cplusplus +#error "This code is not designed to be compiled with a C++ compiler." +#endif + +#if (SIZEOF_LONG == 8) +# define SF_PLATFORM_S64(x) x##l +#elif (SIZEOF_LONG_LONG == 8) +# define SF_PLATFORM_S64(x) x##ll +#elif COMPILER_IS_GCC +# define SF_PLATFORM_S64(x) x##ll +#elif OS_IS_WIN32 +# define SF_PLATFORM_S64(x) x##I64 +#else +# error "Don't know how to define a 64 bit integer constant." +#endif + + + +/* +** Inspiration : http://sourcefrog.net/weblog/software/languages/C/unused.html +*/ +#ifdef UNUSED +#elif defined (__GNUC__) +# define UNUSED(x) UNUSED_ ## x __attribute__ ((unused)) +#elif defined (__LCLINT__) +# define UNUSED(x) /*@unused@*/ x +#else +# define UNUSED(x) x +#endif + +#ifdef __GNUC__ +# define WARN_UNUSED __attribute__ ((warn_unused_result)) +#else +# define WARN_UNUSED +#endif + +#define SF_BUFFER_LEN (8192*2) +#define SF_FILENAME_LEN (512) +#define SF_SYSERR_LEN (256) +#define SF_MAX_STRINGS (32) +#define SF_STR_BUFFER_LEN (8192) +#define SF_HEADER_LEN (4100 + SF_STR_BUFFER_LEN) + +#define PSF_SEEK_ERROR ((sf_count_t) -1) + + +#define BITWIDTH2BYTES(x) (((x) + 7) / 8) + +/* For some reason sizeof returns an unsigned value which causes +** a warning when that value is added or subtracted from a signed +** value. Use SIGNED_SIZEOF instead. +*/ +#define SIGNED_SIZEOF(x) ((int) sizeof (x)) + +#define ARRAY_LEN(x) ((int) (sizeof (x) / sizeof ((x) [0]))) + +#define NOT(x) (! (x)) + +#if (COMPILER_IS_GCC == 1) +#define SF_MAX(x,y) ({ \ + typeof (x) sf_max_x1 = (x) ; \ + typeof (y) sf_max_y1 = (y) ; \ + (void) (&sf_max_x1 == &sf_max_y1) ; \ + sf_max_x1 > sf_max_y1 ? sf_max_x1 : sf_max_y1 ; }) + +#define SF_MIN(x,y) ({ \ + typeof (x) sf_min_x2 = (x) ; \ + typeof (y) sf_min_y2 = (y) ; \ + (void) (&sf_min_x2 == &sf_min_y2) ; \ + sf_min_x2 < sf_min_y2 ? sf_min_x2 : sf_min_y2 ; }) +#else +#define SF_MAX(a,b) ((a) > (b) ? (a) : (b)) +#define SF_MIN(a,b) ((a) < (b) ? (a) : (b)) +#endif + + +#define SF_MAX_CHANNELS 256 + + +/* +* Macros for spliting the format file of SF_INFI into contrainer type, +** codec type and endian-ness. +*/ +#define SF_CONTAINER(x) ((x) & SF_FORMAT_TYPEMASK) +#define SF_CODEC(x) ((x) & SF_FORMAT_SUBMASK) +#define SF_ENDIAN(x) ((x) & SF_FORMAT_ENDMASK) + +enum +{ /* PEAK chunk location. */ + SF_PEAK_START = 42, + SF_PEAK_END = 43, + + /* PEAK chunk location. */ + SF_SCALE_MAX = 52, + SF_SCALE_MIN = 53, + + /* str_flags values. */ + SF_STR_ALLOW_START = 0x0100, + SF_STR_ALLOW_END = 0x0200, + + /* Location of strings. */ + SF_STR_LOCATE_START = 0x0400, + SF_STR_LOCATE_END = 0x0800, + + SFD_TYPEMASK = 0x0FFFFFFF +} ; + +#define SFM_MASK (SFM_READ | SFM_WRITE | SFM_RDWR) +#define SFM_UNMASK (~SFM_MASK) + +/*--------------------------------------------------------------------------------------- +** Formats that may be supported at some time in the future. +** When support is finalised, these values move to src/sndfile.h. +*/ + +enum +{ /* Work in progress. */ + SF_FORMAT_SPEEX = 0x5000000, + SF_FORMAT_OGGFLAC = 0x5000001, + + /* Formats supported read only. */ + SF_FORMAT_TXW = 0x4030000, /* Yamaha TX16 sampler file */ + SF_FORMAT_DWD = 0x4040000, /* DiamondWare Digirized */ + + /* Following are detected but not supported. */ + SF_FORMAT_REX = 0x40A0000, /* Propellorheads Rex/Rcy */ + SF_FORMAT_REX2 = 0x40D0000, /* Propellorheads Rex2 */ + SF_FORMAT_KRZ = 0x40E0000, /* Kurzweil sampler file */ + SF_FORMAT_WMA = 0x4100000, /* Windows Media Audio. */ + SF_FORMAT_SHN = 0x4110000, /* Shorten. */ + + /* Unsupported encodings. */ + SF_FORMAT_SVX_FIB = 0x1020, /* SVX Fibonacci Delta encoding. */ + SF_FORMAT_SVX_EXP = 0x1021, /* SVX Exponential Delta encoding. */ + + SF_FORMAT_PCM_N = 0x1030 +} ; + +/*--------------------------------------------------------------------------------------- +** PEAK_CHUNK - This chunk type is common to both AIFF and WAVE files although their +** endian encodings are different. +*/ + +typedef struct +{ double value ; /* signed value of peak */ + sf_count_t position ; /* the sample frame for the peak */ +} PEAK_POS ; + +typedef struct +{ /* libsndfile internal : write a PEAK chunk at the start or end of the file? */ + int peak_loc ; + + /* WAV/AIFF */ + unsigned int version ; /* version of the PEAK chunk */ + unsigned int timestamp ; /* secs since 1/1/1970 */ + + /* CAF */ + unsigned int edit_number ; + +#if HAVE_FLEXIBLE_ARRAY + /* the per channel peak info */ + PEAK_POS peaks [] ; +#else + /* + ** This is not ISO compliant C. It works on some compilers which + ** don't support the ISO standard flexible struct array which is + ** used above. If your compiler doesn't like this I suggest you find + ** youself a 1999 ISO C standards compilant compiler. GCC-3.X is + ** highly recommended. + */ + PEAK_POS peaks [0] ; +#endif +} PEAK_INFO ; + +static inline PEAK_INFO * +peak_info_calloc (int channels) +{ return calloc (1, sizeof (PEAK_INFO) + channels * sizeof (PEAK_POS)) ; +} /* peak_info_calloc */ + +typedef struct +{ int type ; + int flags ; + char *str ; +} STR_DATA ; + +static inline size_t +make_size_t (int x) +{ return (size_t) x ; +} /* size_t_of_int */ + +typedef SF_BROADCAST_INFO_VAR (16 * 1024) SF_BROADCAST_INFO_16K ; + +#if SIZEOF_WCHAR_T == 2 +typedef wchar_t sfwchar_t ; +#else +typedef int16_t sfwchar_t ; +#endif + +/* +** This version of isprint specifically ignores any locale info. Its used for +** determining which characters can be printed in things like hexdumps. +*/ +static inline int +psf_isprint (int ch) +{ return (ch >= ' ' && ch <= '~') ; +} /* psf_isprint */ + +/*======================================================================================= +** SF_PRIVATE stuct - a pointer to this struct is passed back to the caller of the +** sf_open_XXXX functions. The caller however has no knowledge of the struct's +** contents. +*/ + +typedef struct +{ + union + { char c [SF_FILENAME_LEN] ; + sfwchar_t wc [SF_FILENAME_LEN] ; + } path ; + + union + { char c [SF_FILENAME_LEN] ; + sfwchar_t wc [SF_FILENAME_LEN] ; + } dir ; + + union + { char c [SF_FILENAME_LEN / 4] ; + sfwchar_t wc [SF_FILENAME_LEN / 4] ; + } name ; + +#if USE_WINDOWS_API + /* + ** These fields can only be used in src/file_io.c. + ** They are basically the same as a windows file HANDLE. + */ + void *handle, *hsaved ; + + int use_wchar ; +#else + /* These fields can only be used in src/file_io.c. */ + int filedes, savedes ; +#endif + + int do_not_close_descriptor ; + int mode ; /* Open mode : SFM_READ, SFM_WRITE or SFM_RDWR. */ +} PSF_FILE ; + + +typedef struct sf_private_tag +{ + /* Canary in a coal mine. */ + union + { /* Place a double here to encourage double alignment. */ + double d [2] ; + char c [16] ; + } canary ; + + /* Force the compiler to double align the start of buffer. */ + union + { double dbuf [SF_BUFFER_LEN / sizeof (double)] ; +#if (defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8)) + int64_t lbuf [SF_BUFFER_LEN / sizeof (int64_t)] ; +#else + long lbuf [SF_BUFFER_LEN / sizeof (double)] ; +#endif + float fbuf [SF_BUFFER_LEN / sizeof (float)] ; + int ibuf [SF_BUFFER_LEN / sizeof (int)] ; + short sbuf [SF_BUFFER_LEN / sizeof (short)] ; + char cbuf [SF_BUFFER_LEN / sizeof (char)] ; + signed char scbuf [SF_BUFFER_LEN / sizeof (signed char)] ; + unsigned char ucbuf [SF_BUFFER_LEN / sizeof (signed char)] ; + } u ; + + + PSF_FILE file, rsrc ; + + char syserr [SF_SYSERR_LEN] ; + + /* logbuffer and logindex should only be changed within the logging functions + ** of common.c + */ + char logbuffer [SF_BUFFER_LEN] ; + unsigned char header [SF_HEADER_LEN] ; /* Must be unsigned */ + int rwf_endian ; /* Header endian-ness flag. */ + + /* Storage and housekeeping data for adding/reading strings from + ** sound files. + */ + STR_DATA strings [SF_MAX_STRINGS] ; + char str_storage [SF_STR_BUFFER_LEN] ; + char *str_end ; + int str_flags ; + + /* Guard value. If this changes the buffers above have overflowed. */ + int Magick ; + + unsigned unique_id ; + + /* Index variables for maintaining logbuffer and header above. */ + int logindex ; + int headindex, headend ; + int has_text ; + + int error ; + + int endian ; /* File endianness : SF_ENDIAN_LITTLE or SF_ENDIAN_BIG. */ + int data_endswap ; /* Need to endswap data? */ + + /* + ** Maximum float value for calculating the multiplier for + ** float/double to short/int conversions. + */ + int float_int_mult ; + float float_max ; + + int scale_int_float ; + + /* Vairables for handling pipes. */ + int is_pipe ; /* True if file is a pipe. */ + sf_count_t pipeoffset ; /* Number of bytes read from a pipe. */ + + /* True if clipping must be performed on float->int conversions. */ + int add_clipping ; + + SF_INFO sf ; + + int have_written ; /* Has a single write been done to the file? */ + PEAK_INFO *peak_info ; + + /* Loop Info */ + SF_LOOP_INFO *loop_info ; + SF_INSTRUMENT *instrument ; + + /* Broadcast (EBU) Info */ + SF_BROADCAST_INFO_16K *broadcast_16k ; + + /* Channel map data (if present) : an array of ints. */ + int *channel_map ; + + sf_count_t filelength ; /* Overall length of (embedded) file. */ + sf_count_t fileoffset ; /* Offset in number of bytes from beginning of file. */ + + sf_count_t rsrclength ; /* Length of the resource fork (if it exists). */ + + sf_count_t dataoffset ; /* Offset in number of bytes from beginning of file. */ + sf_count_t datalength ; /* Length in bytes of the audio data. */ + sf_count_t dataend ; /* Offset to file tailer. */ + + int blockwidth ; /* Size in bytes of one set of interleaved samples. */ + int bytewidth ; /* Size in bytes of one sample (one channel). */ + + void *dither ; + void *interleave ; + + int last_op ; /* Last operation; either SFM_READ or SFM_WRITE */ + sf_count_t read_current ; + sf_count_t write_current ; + + void *container_data ; /* This is a pointer to dynamically allocated file + ** container format specific data. + */ + + void *codec_data ; /* This is a pointer to dynamically allocated file + ** codec format specific data. + */ + + SF_DITHER_INFO write_dither ; + SF_DITHER_INFO read_dither ; + + int norm_double ; + int norm_float ; + + int auto_header ; + + int ieee_replace ; + + /* A set of file specific function pointers */ + sf_count_t (*read_short) (struct sf_private_tag*, short *ptr, sf_count_t len) ; + sf_count_t (*read_int) (struct sf_private_tag*, int *ptr, sf_count_t len) ; + sf_count_t (*read_float) (struct sf_private_tag*, float *ptr, sf_count_t len) ; + sf_count_t (*read_double) (struct sf_private_tag*, double *ptr, sf_count_t len) ; + + sf_count_t (*write_short) (struct sf_private_tag*, const short *ptr, sf_count_t len) ; + sf_count_t (*write_int) (struct sf_private_tag*, const int *ptr, sf_count_t len) ; + sf_count_t (*write_float) (struct sf_private_tag*, const float *ptr, sf_count_t len) ; + sf_count_t (*write_double) (struct sf_private_tag*, const double *ptr, sf_count_t len) ; + + sf_count_t (*seek) (struct sf_private_tag*, int mode, sf_count_t samples_from_start) ; + int (*write_header) (struct sf_private_tag*, int calc_length) ; + int (*command) (struct sf_private_tag*, int command, void *data, int datasize) ; + + /* + ** Separate close functions for the codec and the container. + ** The codec close function is always called first. + */ + int (*codec_close) (struct sf_private_tag*) ; + int (*container_close) (struct sf_private_tag*) ; + + char *format_desc ; + + /* Virtual I/O functions. */ + int virtual_io ; + SF_VIRTUAL_IO vio ; + void *vio_user_data ; +} SF_PRIVATE ; + + + +enum +{ SFE_NO_ERROR = SF_ERR_NO_ERROR, + SFE_BAD_OPEN_FORMAT = SF_ERR_UNRECOGNISED_FORMAT, + SFE_SYSTEM = SF_ERR_SYSTEM, + SFE_MALFORMED_FILE = SF_ERR_MALFORMED_FILE, + SFE_UNSUPPORTED_ENCODING = SF_ERR_UNSUPPORTED_ENCODING, + + SFE_ZERO_MAJOR_FORMAT, + SFE_ZERO_MINOR_FORMAT, + SFE_BAD_FILE, + SFE_BAD_FILE_READ, + SFE_OPEN_FAILED, + SFE_BAD_SNDFILE_PTR, + SFE_BAD_SF_INFO_PTR, + SFE_BAD_SF_INCOMPLETE, + SFE_BAD_FILE_PTR, + SFE_BAD_INT_PTR, + SFE_BAD_STAT_SIZE, + SFE_MALLOC_FAILED, + SFE_UNIMPLEMENTED, + SFE_BAD_READ_ALIGN, + SFE_BAD_WRITE_ALIGN, + SFE_UNKNOWN_FORMAT, + SFE_NOT_READMODE, + SFE_NOT_WRITEMODE, + SFE_BAD_MODE_RW, + SFE_BAD_SF_INFO, + SFE_BAD_OFFSET, + SFE_NO_EMBED_SUPPORT, + SFE_NO_EMBEDDED_RDWR, + SFE_NO_PIPE_WRITE, + + SFE_INTERNAL, + SFE_BAD_COMMAND_PARAM, + SFE_BAD_ENDIAN, + SFE_CHANNEL_COUNT_ZERO, + SFE_CHANNEL_COUNT, + + SFE_BAD_VIRTUAL_IO, + + SFE_INTERLEAVE_MODE, + SFE_INTERLEAVE_SEEK, + SFE_INTERLEAVE_READ, + + SFE_BAD_SEEK, + SFE_NOT_SEEKABLE, + SFE_AMBIGUOUS_SEEK, + SFE_WRONG_SEEK, + SFE_SEEK_FAILED, + + SFE_BAD_OPEN_MODE, + SFE_OPEN_PIPE_RDWR, + SFE_RDWR_POSITION, + SFE_RDWR_BAD_HEADER, + SFE_CMD_HAS_DATA, + SFE_BAD_BROADCAST_INFO_SIZE, + SFE_BAD_BROADCAST_INFO_TOO_BIG, + + SFE_STR_NO_SUPPORT, + SFE_STR_NOT_WRITE, + SFE_STR_MAX_DATA, + SFE_STR_MAX_COUNT, + SFE_STR_BAD_TYPE, + SFE_STR_NO_ADD_END, + SFE_STR_BAD_STRING, + SFE_STR_WEIRD, + + SFE_WAV_NO_RIFF, + SFE_WAV_NO_WAVE, + SFE_WAV_NO_FMT, + SFE_WAV_BAD_FMT, + SFE_WAV_FMT_SHORT, + SFE_WAV_BAD_FACT, + SFE_WAV_BAD_PEAK, + SFE_WAV_PEAK_B4_FMT, + SFE_WAV_BAD_FORMAT, + SFE_WAV_BAD_BLOCKALIGN, + SFE_WAV_NO_DATA, + SFE_WAV_BAD_LIST, + SFE_WAV_ADPCM_NOT4BIT, + SFE_WAV_ADPCM_CHANNELS, + SFE_WAV_GSM610_FORMAT, + SFE_WAV_UNKNOWN_CHUNK, + SFE_WAV_WVPK_DATA, + + SFE_AIFF_NO_FORM, + SFE_AIFF_AIFF_NO_FORM, + SFE_AIFF_COMM_NO_FORM, + SFE_AIFF_SSND_NO_COMM, + SFE_AIFF_UNKNOWN_CHUNK, + SFE_AIFF_COMM_CHUNK_SIZE, + SFE_AIFF_BAD_COMM_CHUNK, + SFE_AIFF_PEAK_B4_COMM, + SFE_AIFF_BAD_PEAK, + SFE_AIFF_NO_SSND, + SFE_AIFF_NO_DATA, + SFE_AIFF_RW_SSND_NOT_LAST, + + SFE_AU_UNKNOWN_FORMAT, + SFE_AU_NO_DOTSND, + SFE_AU_EMBED_BAD_LEN, + + SFE_RAW_READ_BAD_SPEC, + SFE_RAW_BAD_BITWIDTH, + SFE_RAW_BAD_FORMAT, + + SFE_PAF_NO_MARKER, + SFE_PAF_VERSION, + SFE_PAF_UNKNOWN_FORMAT, + SFE_PAF_SHORT_HEADER, + SFE_PAF_BAD_CHANNELS, + + SFE_SVX_NO_FORM, + SFE_SVX_NO_BODY, + SFE_SVX_NO_DATA, + SFE_SVX_BAD_COMP, + SFE_SVX_BAD_NAME_LENGTH, + + SFE_NIST_BAD_HEADER, + SFE_NIST_CRLF_CONVERISON, + SFE_NIST_BAD_ENCODING, + + SFE_VOC_NO_CREATIVE, + SFE_VOC_BAD_FORMAT, + SFE_VOC_BAD_VERSION, + SFE_VOC_BAD_MARKER, + SFE_VOC_BAD_SECTIONS, + SFE_VOC_MULTI_SAMPLERATE, + SFE_VOC_MULTI_SECTION, + SFE_VOC_MULTI_PARAM, + SFE_VOC_SECTION_COUNT, + SFE_VOC_NO_PIPE, + + SFE_IRCAM_NO_MARKER, + SFE_IRCAM_BAD_CHANNELS, + SFE_IRCAM_UNKNOWN_FORMAT, + + SFE_W64_64_BIT, + SFE_W64_NO_RIFF, + SFE_W64_NO_WAVE, + SFE_W64_NO_DATA, + SFE_W64_ADPCM_NOT4BIT, + SFE_W64_ADPCM_CHANNELS, + SFE_W64_GSM610_FORMAT, + + SFE_MAT4_BAD_NAME, + SFE_MAT4_NO_SAMPLERATE, + + SFE_MAT5_BAD_ENDIAN, + SFE_MAT5_NO_BLOCK, + SFE_MAT5_SAMPLE_RATE, + + SFE_PVF_NO_PVF1, + SFE_PVF_BAD_HEADER, + SFE_PVF_BAD_BITWIDTH, + + SFE_DWVW_BAD_BITWIDTH, + SFE_G72X_NOT_MONO, + + SFE_XI_BAD_HEADER, + SFE_XI_EXCESS_SAMPLES, + SFE_XI_NO_PIPE, + + SFE_HTK_NO_PIPE, + + SFE_SDS_NOT_SDS, + SFE_SDS_BAD_BIT_WIDTH, + + SFE_SD2_FD_DISALLOWED, + SFE_SD2_BAD_DATA_OFFSET, + SFE_SD2_BAD_MAP_OFFSET, + SFE_SD2_BAD_DATA_LENGTH, + SFE_SD2_BAD_MAP_LENGTH, + SFE_SD2_BAD_RSRC, + SFE_SD2_BAD_SAMPLE_SIZE, + + SFE_FLAC_BAD_HEADER, + SFE_FLAC_NEW_DECODER, + SFE_FLAC_INIT_DECODER, + SFE_FLAC_LOST_SYNC, + SFE_FLAC_BAD_SAMPLE_RATE, + SFE_FLAC_UNKOWN_ERROR, + + SFE_WVE_NOT_WVE, + SFE_WVE_NO_PIPE, + + SFE_VORBIS_ENCODER_BUG, + + SFE_RF64_NOT_RF64, + + SFE_MAX_ERROR /* This must be last in list. */ +} ; + +int subformat_to_bytewidth (int format) ; +int s_bitwidth_to_subformat (int bits) ; +int u_bitwidth_to_subformat (int bits) ; + +/* Functions for reading and writing floats and doubles on processors +** with non-IEEE floats/doubles. +*/ +float float32_be_read (unsigned char *cptr) ; +float float32_le_read (unsigned char *cptr) ; +void float32_be_write (float in, unsigned char *out) ; +void float32_le_write (float in, unsigned char *out) ; + +double double64_be_read (unsigned char *cptr) ; +double double64_le_read (unsigned char *cptr) ; +void double64_be_write (double in, unsigned char *out) ; +void double64_le_write (double in, unsigned char *out) ; + +/* Functions for writing to the internal logging buffer. */ + +void psf_log_printf (SF_PRIVATE *psf, const char *format, ...) ; +void psf_log_SF_INFO (SF_PRIVATE *psf) ; + +int32_t psf_rand_int32 (void) ; + +void append_snprintf (char * dest, size_t maxlen, const char * fmt, ...) ; +void psf_strlcpy_crlf (char *dest, const char *src, size_t destmax, size_t srcmax) ; + +/* Functions used when writing file headers. */ + +int psf_binheader_writef (SF_PRIVATE *psf, const char *format, ...) ; +void psf_asciiheader_printf (SF_PRIVATE *psf, const char *format, ...) ; + +/* Functions used when reading file headers. */ + +int psf_binheader_readf (SF_PRIVATE *psf, char const *format, ...) ; + +/* Functions used in the write function for updating the peak chunk. */ + +void peak_update_short (SF_PRIVATE *psf, short *ptr, size_t items) ; +void peak_update_int (SF_PRIVATE *psf, int *ptr, size_t items) ; +void peak_update_double (SF_PRIVATE *psf, double *ptr, size_t items) ; + +/* Functions defined in command.c. */ + +int psf_get_format_simple_count (void) ; +int psf_get_format_simple (SF_FORMAT_INFO *data) ; + +int psf_get_format_info (SF_FORMAT_INFO *data) ; + +int psf_get_format_major_count (void) ; +int psf_get_format_major (SF_FORMAT_INFO *data) ; + +int psf_get_format_subtype_count (void) ; +int psf_get_format_subtype (SF_FORMAT_INFO *data) ; + +void psf_generate_format_desc (SF_PRIVATE *psf) ; + +double psf_calc_signal_max (SF_PRIVATE *psf, int normalize) ; +int psf_calc_max_all_channels (SF_PRIVATE *psf, double *peaks, int normalize) ; + +int psf_get_signal_max (SF_PRIVATE *psf, double *peak) ; +int psf_get_max_all_channels (SF_PRIVATE *psf, double *peaks) ; + +/* Functions in strings.c. */ + +const char* psf_get_string (SF_PRIVATE *psf, int str_type) ; +int psf_set_string (SF_PRIVATE *psf, int str_type, const char *str) ; +int psf_store_string (SF_PRIVATE *psf, int str_type, const char *str) ; +int psf_location_string_count (const SF_PRIVATE * psf, int location) ; + +/* Default seek function. Use for PCM and float encoded data. */ +sf_count_t psf_default_seek (SF_PRIVATE *psf, int mode, sf_count_t samples_from_start) ; + +int macos_guess_file_type (SF_PRIVATE *psf, const char *filename) ; + +/*------------------------------------------------------------------------------------ +** File I/O functions which will allow access to large files (> 2 Gig) on +** some 32 bit OSes. Implementation in file_io.c. +*/ + +int psf_fopen (SF_PRIVATE *psf) ; +int psf_set_stdio (SF_PRIVATE *psf) ; +int psf_file_valid (SF_PRIVATE *psf) ; +void psf_set_file (SF_PRIVATE *psf, int fd) ; +void psf_init_files (SF_PRIVATE *psf) ; +void psf_use_rsrc (SF_PRIVATE *psf, int on_off) ; + +SNDFILE * psf_open_file (SF_PRIVATE *psf, SF_INFO *sfinfo) ; + +sf_count_t psf_fseek (SF_PRIVATE *psf, sf_count_t offset, int whence) ; +sf_count_t psf_fread (void *ptr, sf_count_t bytes, sf_count_t count, SF_PRIVATE *psf) ; +sf_count_t psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t count, SF_PRIVATE *psf) ; +sf_count_t psf_fgets (char *buffer, sf_count_t bufsize, SF_PRIVATE *psf) ; +sf_count_t psf_ftell (SF_PRIVATE *psf) ; +sf_count_t psf_get_filelen (SF_PRIVATE *psf) ; + +void psf_fsync (SF_PRIVATE *psf) ; + +int psf_is_pipe (SF_PRIVATE *psf) ; + +int psf_ftruncate (SF_PRIVATE *psf, sf_count_t len) ; +int psf_fclose (SF_PRIVATE *psf) ; + +/* Open and close the resource fork of a file. */ +int psf_open_rsrc (SF_PRIVATE *psf) ; +int psf_close_rsrc (SF_PRIVATE *psf) ; + +/* +void psf_fclearerr (SF_PRIVATE *psf) ; +int psf_ferror (SF_PRIVATE *psf) ; +*/ + +/*------------------------------------------------------------------------------------ +** Functions for reading and writing different file formats. +*/ + +int aiff_open (SF_PRIVATE *psf) ; +int au_open (SF_PRIVATE *psf) ; +int avr_open (SF_PRIVATE *psf) ; +int htk_open (SF_PRIVATE *psf) ; +int ircam_open (SF_PRIVATE *psf) ; +int mat4_open (SF_PRIVATE *psf) ; +int mat5_open (SF_PRIVATE *psf) ; +int nist_open (SF_PRIVATE *psf) ; +int paf_open (SF_PRIVATE *psf) ; +int pvf_open (SF_PRIVATE *psf) ; +int raw_open (SF_PRIVATE *psf) ; +int sd2_open (SF_PRIVATE *psf) ; +int sds_open (SF_PRIVATE *psf) ; +int svx_open (SF_PRIVATE *psf) ; +int voc_open (SF_PRIVATE *psf) ; +int w64_open (SF_PRIVATE *psf) ; +int wav_open (SF_PRIVATE *psf) ; +int xi_open (SF_PRIVATE *psf) ; +int flac_open (SF_PRIVATE *psf) ; +int caf_open (SF_PRIVATE *psf) ; +int mpc2k_open (SF_PRIVATE *psf) ; +int rf64_open (SF_PRIVATE *psf) ; + +/* In progress. Do not currently work. */ + +int ogg_vorbis_open (SF_PRIVATE *psf) ; +int ogg_speex_open (SF_PRIVATE *psf) ; +int ogg_pcm_open (SF_PRIVATE *psf) ; + + +int mpeg_open (SF_PRIVATE *psf) ; +int ogg_open (SF_PRIVATE *psf) ; +int rx2_open (SF_PRIVATE *psf) ; +int txw_open (SF_PRIVATE *psf) ; +int wve_open (SF_PRIVATE *psf) ; +int dwd_open (SF_PRIVATE *psf) ; + +int macbinary3_open (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------------ +** Init functions for a number of common data encodings. +*/ + +int pcm_init (SF_PRIVATE *psf) ; +int ulaw_init (SF_PRIVATE *psf) ; +int alaw_init (SF_PRIVATE *psf) ; +int float32_init (SF_PRIVATE *psf) ; +int double64_init (SF_PRIVATE *psf) ; +int dwvw_init (SF_PRIVATE *psf, int bitwidth) ; +int gsm610_init (SF_PRIVATE *psf) ; +int vox_adpcm_init (SF_PRIVATE *psf) ; +int flac_init (SF_PRIVATE *psf) ; +int g72x_init (SF_PRIVATE * psf) ; + +int dither_init (SF_PRIVATE *psf, int mode) ; + +int wav_w64_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; +int wav_w64_msadpcm_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; + +int aiff_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; + +int interleave_init (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------------ +** Chunk logging functions. +*/ + +typedef struct +{ struct + { int chunk ; + sf_count_t offset ; + sf_count_t len ; + } l [100] ; + + int count ; +} PRIV_CHUNK4 ; + +void pchk4_store (PRIV_CHUNK4 * pchk, int marker, sf_count_t offset, sf_count_t len) ; +int pchk4_find (PRIV_CHUNK4 * pchk, int marker) ; + +/*------------------------------------------------------------------------------------ +** Functions that work like OpenBSD's strlcpy/strlcat to replace strncpy/strncat. +** +** See : http://www.gratisoft.us/todd/papers/strlcpy.html +** +** These functions are available on *BSD, but are not avaialble everywhere so we +** implement them here. +** +** The argument order has been changed to that of strncpy/strncat to cause +** compiler errors if code is carelessly converted from one to the other. +*/ + +static inline void +psf_strlcat (char *dest, size_t n, const char *src) +{ strncat (dest, src, n - strlen (dest) - 1) ; + dest [n - 1] = 0 ; +} /* psf_strlcat */ + +static inline void +psf_strlcpy (char *dest, size_t n, const char *src) +{ strncpy (dest, src, n - 1) ; + dest [n - 1] = 0 ; +} /* psf_strlcpy */ + +/*------------------------------------------------------------------------------------ +** Other helper functions. +*/ + +void *psf_memset (void *s, int c, sf_count_t n) ; + +SF_INSTRUMENT * psf_instrument_alloc (void) ; + +void psf_sanitize_string (char * cptr, int len) ; + +/* Generate the current date as a string. */ +void psf_get_date_str (char *str, int maxlen) ; + +SF_BROADCAST_INFO_16K * broadcast_var_alloc (void) ; +int broadcast_var_set (SF_PRIVATE *psf, const SF_BROADCAST_INFO * data, size_t datasize) ; +int broadcast_var_get (SF_PRIVATE *psf, SF_BROADCAST_INFO * data, size_t datasize) ; + + +typedef struct +{ int channels ; + int endianness ; +} AUDIO_DETECT ; + +int audio_detect (SF_PRIVATE * psf, AUDIO_DETECT *ad, const unsigned char * data, int datalen) ; +int id3_skip (SF_PRIVATE * psf) ; + +/*------------------------------------------------------------------------------------ +** Helper/debug functions. +*/ + +void psf_hexdump (const void *ptr, int len) ; + +const char * str_of_major_format (int format) ; +const char * str_of_minor_format (int format) ; +const char * str_of_open_mode (int mode) ; +const char * str_of_endianness (int end) ; + +/*------------------------------------------------------------------------------------ +** Extra commands for sf_command(). Not for public use yet. +*/ + +enum +{ SFC_TEST_AIFF_ADD_INST_CHUNK = 0x2000, + SFC_TEST_WAV_ADD_INFO_CHUNK = 0x2010 +} ; + +/* +** Maybe, one day, make these functions or something like them, public. +** +** Buffer to buffer dithering. Pointer in and out are allowed to point +** to the same buffer for in-place dithering. +*/ + +#if 0 +int sf_dither_short (const SF_DITHER_INFO *dither, const short *in, short *out, int count) ; +int sf_dither_int (const SF_DITHER_INFO *dither, const int *in, int *out, int count) ; +int sf_dither_float (const SF_DITHER_INFO *dither, const float *in, float *out, int count) ; +int sf_dither_double (const SF_DITHER_INFO *dither, const double *in, double *out, int count) ; +#endif + +#endif /* SNDFILE_COMMON_H */ + diff --git a/src/config.h.in b/src/config.h.in new file mode 100644 index 0000000..f55a59a --- /dev/null +++ b/src/config.h.in @@ -0,0 +1,290 @@ +/* src/config.h.in. Generated from configure.ac by autoheader. */ + +/* Set to 1 if the compile is GNU GCC. */ +#undef COMPILER_IS_GCC + +/* Target processor clips on negative float to int conversion. */ +#undef CPU_CLIPS_NEGATIVE + +/* Target processor clips on positive float to int conversion. */ +#undef CPU_CLIPS_POSITIVE + +/* Target processor is big endian. */ +#undef CPU_IS_BIG_ENDIAN + +/* Target processor is little endian. */ +#undef CPU_IS_LITTLE_ENDIAN + +/* Set to 1 to enable experimental code. */ +#undef ENABLE_EXPERIMENTAL_CODE + +/* Define to 1 if you have the <alsa/asoundlib.h> header file. */ +#undef HAVE_ALSA_ASOUNDLIB_H + +/* Define to 1 if you have the <byteswap.h> header file. */ +#undef HAVE_BYTESWAP_H + +/* Define to 1 if you have the `calloc' function. */ +#undef HAVE_CALLOC + +/* Define to 1 if you have the `ceil' function. */ +#undef HAVE_CEIL + +/* Set to 1 if S_IRGRP is defined. */ +#undef HAVE_DECL_S_IRGRP + +/* Define to 1 if you have the <dlfcn.h> header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the <endian.h> header file. */ +#undef HAVE_ENDIAN_H + +/* Will be set to 1 if flac, ogg and vorbis are available. */ +#undef HAVE_EXTERNAL_LIBS + +/* Set to 1 if the compile supports the struct hack. */ +#undef HAVE_FLEXIBLE_ARRAY + +/* Define to 1 if you have the `floor' function. */ +#undef HAVE_FLOOR + +/* Define to 1 if you have the `fmod' function. */ +#undef HAVE_FMOD + +/* Define to 1 if you have the `free' function. */ +#undef HAVE_FREE + +/* Define to 1 if you have the `fstat' function. */ +#undef HAVE_FSTAT + +/* Define to 1 if you have the `fsync' function. */ +#undef HAVE_FSYNC + +/* Define to 1 if you have the `ftruncate' function. */ +#undef HAVE_FTRUNCATE + +/* Define to 1 if you have the `getpagesize' function. */ +#undef HAVE_GETPAGESIZE + +/* Define to 1 if you have the `gettimeofday' function. */ +#undef HAVE_GETTIMEOFDAY + +/* Define to 1 if you have the `gmtime' function. */ +#undef HAVE_GMTIME + +/* Define to 1 if you have the `gmtime_r' function. */ +#undef HAVE_GMTIME_R + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the `m' library (-lm). */ +#undef HAVE_LIBM + +/* Define to 1 if you have the <locale.h> header file. */ +#undef HAVE_LOCALE_H + +/* Define to 1 if you have the `localtime' function. */ +#undef HAVE_LOCALTIME + +/* Define to 1 if you have the `localtime_r' function. */ +#undef HAVE_LOCALTIME_R + +/* Define if you have C99's lrint function. */ +#undef HAVE_LRINT + +/* Define if you have C99's lrintf function. */ +#undef HAVE_LRINTF + +/* Define to 1 if you have the `lseek' function. */ +#undef HAVE_LSEEK + +/* Define to 1 if you have the `malloc' function. */ +#undef HAVE_MALLOC + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `mmap' function. */ +#undef HAVE_MMAP + +/* Define to 1 if you have the `open' function. */ +#undef HAVE_OPEN + +/* Define to 1 if you have the `pipe' function. */ +#undef HAVE_PIPE + +/* Define to 1 if you have the `pread' function. */ +#undef HAVE_PREAD + +/* Define to 1 if you have the `pwrite' function. */ +#undef HAVE_PWRITE + +/* Define to 1 if you have the `read' function. */ +#undef HAVE_READ + +/* Define to 1 if you have the `realloc' function. */ +#undef HAVE_REALLOC + +/* Define to 1 if you have the `setlocale' function. */ +#undef HAVE_SETLOCALE + +/* Define to 1 if you have the <sndio.h> header file. */ +#undef HAVE_SNDIO_H + +/* Define to 1 if you have the `snprintf' function. */ +#undef HAVE_SNPRINTF + +/* Set to 1 if you have libsqlite3. */ +#undef HAVE_SQLITE3 + +/* Define to 1 if the system has the type `ssize_t'. */ +#undef HAVE_SSIZE_T + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/time.h> header file. */ +#undef HAVE_SYS_TIME_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */ +#undef HAVE_SYS_WAIT_H + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if you have the `vsnprintf' function. */ +#undef HAVE_VSNPRINTF + +/* Define to 1 if you have the `waitpid' function. */ +#undef HAVE_WAITPID + +/* Define to 1 if you have the `write' function. */ +#undef HAVE_WRITE + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#undef LT_OBJDIR + +/* Define to 1 if your C compiler doesn't accept -c and -o together. */ +#undef NO_MINUS_C_MINUS_O + +/* Set to 1 if compiling for MacOSX */ +#undef OS_IS_MACOSX + +/* Set to 1 if compiling for Win32 */ +#undef OS_IS_WIN32 + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Set to maximum allowed value of sf_count_t type. */ +#undef SF_COUNT_MAX + +/* The size of `double', as computed by sizeof. */ +#undef SIZEOF_DOUBLE + +/* The size of `float', as computed by sizeof. */ +#undef SIZEOF_FLOAT + +/* The size of `int', as computed by sizeof. */ +#undef SIZEOF_INT + +/* The size of `int64_t', as computed by sizeof. */ +#undef SIZEOF_INT64_T + +/* The size of `loff_t', as computed by sizeof. */ +#undef SIZEOF_LOFF_T + +/* The size of `long', as computed by sizeof. */ +#undef SIZEOF_LONG + +/* The size of `long long', as computed by sizeof. */ +#undef SIZEOF_LONG_LONG + +/* The size of `off64_t', as computed by sizeof. */ +#undef SIZEOF_OFF64_T + +/* The size of `off_t', as computed by sizeof. */ +#undef SIZEOF_OFF_T + +/* Set to sizeof (long) if unknown. */ +#undef SIZEOF_SF_COUNT_T + +/* The size of `short', as computed by sizeof. */ +#undef SIZEOF_SHORT + +/* The size of `size_t', as computed by sizeof. */ +#undef SIZEOF_SIZE_T + +/* The size of `ssize_t', as computed by sizeof. */ +#undef SIZEOF_SSIZE_T + +/* The size of `void*', as computed by sizeof. */ +#undef SIZEOF_VOIDP + +/* The size of `wchar_t', as computed by sizeof. */ +#undef SIZEOF_WCHAR_T + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Set to long if unknown. */ +#undef TYPEOF_SF_COUNT_T + +/* Set to 1 to use the native windows API */ +#undef USE_WINDOWS_API + +/* Version number of package */ +#undef VERSION + +/* Set to 1 if windows DLL is being built. */ +#undef WIN32_TARGET_DLL + +/* Target processor is big endian. */ +#undef WORDS_BIGENDIAN + +/* Number of bits in a file offset, on hosts where this is settable. */ +#undef _FILE_OFFSET_BITS + +/* Define to make fseeko etc. visible, on some hosts. */ +#undef _LARGEFILE_SOURCE + +/* Define for large files, on AIX-style hosts. */ +#undef _LARGE_FILES + +/* Set to 1 to use C99 printf/snprintf in MinGW. */ +#undef __USE_MINGW_ANSI_STDIO diff --git a/src/create_symbols_file.py b/src/create_symbols_file.py new file mode 100755 index 0000000..f2cab12 --- /dev/null +++ b/src/create_symbols_file.py @@ -0,0 +1,176 @@ +#!/usr/bin/python + +# Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +# +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the author nor the names of any contributors may be used +# to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +import re, sys + +#---------------------------------------------------------------- +# These are all of the public functions exported from libsndfile. +# +# Its important not to change the order they are listed in or +# the ordinal values in the second column. + +ALL_SYMBOLS = ( + ( "sf_command", 1 ), + ( "sf_open", 2 ), + ( "sf_close", 3 ), + ( "sf_seek", 4 ), + ( "sf_error", 7 ), + ( "sf_perror", 8 ), + ( "sf_error_str", 9 ), + ( "sf_error_number", 10 ), + ( "sf_format_check", 11 ), + ( "sf_read_raw", 16 ), + ( "sf_readf_short", 17 ), + ( "sf_readf_int", 18 ), + ( "sf_readf_float", 19 ), + ( "sf_readf_double", 20 ), + ( "sf_read_short", 21 ), + ( "sf_read_int", 22 ), + ( "sf_read_float", 23 ), + ( "sf_read_double", 24 ), + ( "sf_write_raw", 32 ), + ( "sf_writef_short", 33 ), + ( "sf_writef_int", 34 ), + ( "sf_writef_float", 35 ), + ( "sf_writef_double", 36 ), + ( "sf_write_short", 37 ), + ( "sf_write_int", 38 ), + ( "sf_write_float", 39 ), + ( "sf_write_double", 40 ), + ( "sf_strerror", 50 ), + ( "sf_get_string", 60 ), + ( "sf_set_string", 61 ), + ( "sf_version_string",68 ), + ( "sf_open_fd", 70 ), + ( "sf_wchar_open", 71 ), + ( "sf_open_virtual", 80 ), + ( "sf_write_sync", 90 ) + ) + +#------------------------------------------------------------------------------- + +def linux_symbols (progname, version): + print "# Auto-generated by %s\n" %progname + print "libsndfile.so.%s" % version + print "{" + print " global:" + for name, ordinal in ALL_SYMBOLS: + if name == "sf_wchar_open": + continue + print " %s ;" % name + print " local:" + print " * ;" + print "} ;" + print + return + +def darwin_symbols (progname, version): + print "# Auto-generated by %s\n" %progname + for name, ordinal in ALL_SYMBOLS: + if name == "sf_wchar_open": + continue + print "_%s" % name + print + return + +def win32_symbols (progname, version, name): + print "; Auto-generated by %s\n" %progname + print "LIBRARY %s-%s.dll" % (name, re.sub ("\..*", "", version)) + print "EXPORTS\n" + for name, ordinal in ALL_SYMBOLS: + print "%-20s @%s" % (name, ordinal) + print + return + +def os2_symbols (progname, version, name): + print "; Auto-generated by %s\n" %progname + print "LIBRARY %s%s" % (name, re.sub ("\..*", "", version)) + print "INITINSTANCE TERMINSTANCE" + print "CODE PRELOAD MOVEABLE DISCARDABLE" + print "DATA PRELOAD MOVEABLE MULTIPLE NONSHARED" + print "EXPORTS\n" + for name, ordinal in ALL_SYMBOLS: + if name == "sf_wchar_open": + continue + print "_%-20s @%s" % (name, ordinal) + print + return + +def plain_symbols (progname, version, name): + for name, ordinal in ALL_SYMBOLS: + print name + +def no_symbols (os_name): + print + print "No known way of restricting exported symbols on '%s'." % os_name + print "If you know a way, please contact the author." + print + return + +#------------------------------------------------------------------------------- + +progname = re.sub (".*[\\/]", "", sys.argv [0]) + +if len (sys.argv) != 3: + print + print "Usage : %s <target OS name> <libsndfile version>." % progname + print + print " Currently supported values for target OS are:" + print " linux" + print " darwin (ie MacOSX)" + print " win32 (ie wintendo)" + print " cygwin (Cygwin on wintendo)" + print " os2 (OS/2)" + print " plain (plain list of symbols)" + print + sys.exit (1) + +os_name = sys.argv [1] +version = re.sub ("\.[a-z0-9]+$", "", sys.argv [2]) + +if os_name == "linux" or os_name == "gnu" or os_name == "binutils": + linux_symbols (progname, version) +elif os_name == "darwin": + darwin_symbols (progname, version) +elif os_name == "win32": + win32_symbols (progname, version, "libsndfile") +elif os_name == "cygwin": + win32_symbols (progname, version, "cygsndfile") +elif os_name == "os2": + os2_symbols (progname, version, "sndfile") +elif os_name == "static": + plain_symbols (progname, version, "") +else: + no_symbols (os_name) + +sys.exit (0) + diff --git a/src/dither.c b/src/dither.c new file mode 100644 index 0000000..d149bc1 --- /dev/null +++ b/src/dither.c @@ -0,0 +1,534 @@ +/* +** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdlib.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*============================================================================ +** Rule number 1 is to only apply dither when going from a larger bitwidth +** to a smaller bitwidth. This can happen on both read and write. +** +** Need to apply dither on all conversions marked X below. +** +** Dither on write: +** +** Input +** | short int float double +** --------+----------------------------------------------- +** O 8 bit | X X X X +** u 16 bit | none X X X +** t 24 bit | none X X X +** p 32 bit | none none X X +** u float | none none none none +** t double | none none none none +** +** Dither on read: +** +** Input +** O | 8 bit 16 bit 24 bit 32 bit float double +** u --------+------------------------------------------------- +** t short | none none X X X X +** p int | none none none X X X +** u float | none none none none none none +** t double | none none none none none none +*/ + +#define SFE_DITHER_BAD_PTR 666 +#define SFE_DITHER_BAD_TYPE 667 + +typedef struct +{ int read_short_dither_bits, read_int_dither_bits ; + int write_short_dither_bits, write_int_dither_bits ; + double read_float_dither_scale, read_double_dither_bits ; + double write_float_dither_scale, write_double_dither_bits ; + + sf_count_t (*read_short) (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; + sf_count_t (*read_int) (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; + sf_count_t (*read_float) (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; + sf_count_t (*read_double) (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + + sf_count_t (*write_short) (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; + sf_count_t (*write_int) (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; + sf_count_t (*write_float) (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; + sf_count_t (*write_double) (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + + double buffer [SF_BUFFER_LEN / sizeof (double)] ; +} DITHER_DATA ; + +static sf_count_t dither_read_short (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t dither_read_int (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; + +static sf_count_t dither_write_short (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t dither_write_int (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t dither_write_float (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t dither_write_double (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +int +dither_init (SF_PRIVATE *psf, int mode) +{ DITHER_DATA *pdither ; + + pdither = psf->dither ; /* This may be NULL. */ + + /* Turn off dither on read. */ + if (mode == SFM_READ && psf->read_dither.type == SFD_NO_DITHER) + { if (pdither == NULL) + return 0 ; /* Dither is already off, so just return. */ + + if (pdither->read_short) + psf->read_short = pdither->read_short ; + if (pdither->read_int) + psf->read_int = pdither->read_int ; + if (pdither->read_float) + psf->read_float = pdither->read_float ; + if (pdither->read_double) + psf->read_double = pdither->read_double ; + return 0 ; + } ; + + /* Turn off dither on write. */ + if (mode == SFM_WRITE && psf->write_dither.type == SFD_NO_DITHER) + { if (pdither == NULL) + return 0 ; /* Dither is already off, so just return. */ + + if (pdither->write_short) + psf->write_short = pdither->write_short ; + if (pdither->write_int) + psf->write_int = pdither->write_int ; + if (pdither->write_float) + psf->write_float = pdither->write_float ; + if (pdither->write_double) + psf->write_double = pdither->write_double ; + return 0 ; + } ; + + /* Turn on dither on read if asked. */ + if (mode == SFM_READ && psf->read_dither.type != 0) + { if (pdither == NULL) + pdither = psf->dither = calloc (1, sizeof (DITHER_DATA)) ; + if (pdither == NULL) + return SFE_MALLOC_FAILED ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_DOUBLE : + case SF_FORMAT_FLOAT : + pdither->read_int = psf->read_int ; + psf->read_int = dither_read_int ; + break ; + + case SF_FORMAT_PCM_32 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + pdither->read_short = psf->read_short ; + psf->read_short = dither_read_short ; + break ; + + default : break ; + } ; + } ; + + /* Turn on dither on write if asked. */ + if (mode == SFM_WRITE && psf->write_dither.type != 0) + { if (pdither == NULL) + pdither = psf->dither = calloc (1, sizeof (DITHER_DATA)) ; + if (pdither == NULL) + return SFE_MALLOC_FAILED ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_DOUBLE : + case SF_FORMAT_FLOAT : + pdither->write_int = psf->write_int ; + psf->write_int = dither_write_int ; + break ; + + case SF_FORMAT_PCM_32 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + break ; + + default : break ; + } ; + + pdither->write_short = psf->write_short ; + psf->write_short = dither_write_short ; + + pdither->write_int = psf->write_int ; + psf->write_int = dither_write_int ; + + pdither->write_float = psf->write_float ; + psf->write_float = dither_write_float ; + + pdither->write_double = psf->write_double ; + psf->write_double = dither_write_double ; + } ; + + return 0 ; +} /* dither_init */ + +/*============================================================================== +*/ + +static void dither_short (const short *in, short *out, int frames, int channels) ; +static void dither_int (const int *in, int *out, int frames, int channels) ; + +static void dither_float (const float *in, float *out, int frames, int channels) ; +static void dither_double (const double *in, double *out, int frames, int channels) ; + +static sf_count_t +dither_read_short (SF_PRIVATE * UNUSED (psf), short * UNUSED (ptr), sf_count_t len) +{ + return len ; +} /* dither_read_short */ + +static sf_count_t +dither_read_int (SF_PRIVATE * UNUSED (psf), int * UNUSED (ptr), sf_count_t len) +{ + return len ; +} /* dither_read_int */ + +/*------------------------------------------------------------------------------ +*/ + +static sf_count_t +dither_write_short (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ DITHER_DATA *pdither ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + + if ((pdither = psf->dither) == NULL) + { psf->error = SFE_DITHER_BAD_PTR ; + return 0 ; + } ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + case SF_FORMAT_DPCM_8 : + break ; + + default : + return pdither->write_short (psf, ptr, len) ; + } ; + + bufferlen = sizeof (pdither->buffer) / sizeof (short) ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + writecount /= psf->sf.channels ; + writecount *= psf->sf.channels ; + + dither_short (ptr, (short*) pdither->buffer, writecount / psf->sf.channels, psf->sf.channels) ; + + thiswrite = pdither->write_short (psf, (short*) pdither->buffer, writecount) ; + total += thiswrite ; + len -= thiswrite ; + if (thiswrite < writecount) + break ; + } ; + + return total ; +} /* dither_write_short */ + +static sf_count_t +dither_write_int (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ DITHER_DATA *pdither ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + + if ((pdither = psf->dither) == NULL) + { psf->error = SFE_DITHER_BAD_PTR ; + return 0 ; + } ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + break ; + + case SF_FORMAT_DPCM_8 : + case SF_FORMAT_DPCM_16 : + break ; + + default : + return pdither->write_int (psf, ptr, len) ; + } ; + + + bufferlen = sizeof (pdither->buffer) / sizeof (int) ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + writecount /= psf->sf.channels ; + writecount *= psf->sf.channels ; + + dither_int (ptr, (int*) pdither->buffer, writecount / psf->sf.channels, psf->sf.channels) ; + + thiswrite = pdither->write_int (psf, (int*) pdither->buffer, writecount) ; + total += thiswrite ; + len -= thiswrite ; + if (thiswrite < writecount) + break ; + } ; + + return total ; +} /* dither_write_int */ + +static sf_count_t +dither_write_float (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ DITHER_DATA *pdither ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + + if ((pdither = psf->dither) == NULL) + { psf->error = SFE_DITHER_BAD_PTR ; + return 0 ; + } ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + break ; + + case SF_FORMAT_DPCM_8 : + case SF_FORMAT_DPCM_16 : + break ; + + default : + return pdither->write_float (psf, ptr, len) ; + } ; + + bufferlen = sizeof (pdither->buffer) / sizeof (float) ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (float) len ; + writecount /= psf->sf.channels ; + writecount *= psf->sf.channels ; + + dither_float (ptr, (float*) pdither->buffer, writecount / psf->sf.channels, psf->sf.channels) ; + + thiswrite = pdither->write_float (psf, (float*) pdither->buffer, writecount) ; + total += thiswrite ; + len -= thiswrite ; + if (thiswrite < writecount) + break ; + } ; + + return total ; +} /* dither_write_float */ + +static sf_count_t +dither_write_double (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ DITHER_DATA *pdither ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + + if ((pdither = psf->dither) == NULL) + { psf->error = SFE_DITHER_BAD_PTR ; + return 0 ; + } ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + break ; + + case SF_FORMAT_DPCM_8 : + case SF_FORMAT_DPCM_16 : + break ; + + default : + return pdither->write_double (psf, ptr, len) ; + } ; + + + bufferlen = sizeof (pdither->buffer) / sizeof (double) ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (double) len ; + writecount /= psf->sf.channels ; + writecount *= psf->sf.channels ; + + dither_double (ptr, (double*) pdither->buffer, writecount / psf->sf.channels, psf->sf.channels) ; + + thiswrite = pdither->write_double (psf, (double*) pdither->buffer, writecount) ; + total += thiswrite ; + len -= thiswrite ; + if (thiswrite < writecount) + break ; + } ; + + return total ; +} /* dither_write_double */ + +/*============================================================================== +*/ + +static void +dither_short (const short *in, short *out, int frames, int channels) +{ int ch, k ; + + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + +} /* dither_short */ + +static void +dither_int (const int *in, int *out, int frames, int channels) +{ int ch, k ; + + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + +} /* dither_int */ + +static void +dither_float (const float *in, float *out, int frames, int channels) +{ int ch, k ; + + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + +} /* dither_float */ + +static void +dither_double (const double *in, double *out, int frames, int channels) +{ int ch, k ; + + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + +} /* dither_double */ + +/*============================================================================== +*/ +#if 0 + +/* +** Not made public because this (maybe) requires storage of state information. +** +** Also maybe need separate state info for each channel!!!! +*/ + +int +DO_NOT_USE_sf_dither_short (const SF_DITHER_INFO *dither, const short *in, short *out, int frames, int channels) +{ int ch, k ; + + if (! dither) + return SFE_DITHER_BAD_PTR ; + + switch (dither->type & SFD_TYPEMASK) + { case SFD_WHITE : + case SFD_TRIANGULAR_PDF : + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + break ; + + default : + return SFE_DITHER_BAD_TYPE ; + } ; + + return 0 ; +} /* DO_NOT_USE_sf_dither_short */ + +int +DO_NOT_USE_sf_dither_int (const SF_DITHER_INFO *dither, const int *in, int *out, int frames, int channels) +{ int ch, k ; + + if (! dither) + return SFE_DITHER_BAD_PTR ; + + switch (dither->type & SFD_TYPEMASK) + { case SFD_WHITE : + case SFD_TRIANGULAR_PDF : + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + break ; + + default : + return SFE_DITHER_BAD_TYPE ; + } ; + + return 0 ; +} /* DO_NOT_USE_sf_dither_int */ + +int +DO_NOT_USE_sf_dither_float (const SF_DITHER_INFO *dither, const float *in, float *out, int frames, int channels) +{ int ch, k ; + + if (! dither) + return SFE_DITHER_BAD_PTR ; + + switch (dither->type & SFD_TYPEMASK) + { case SFD_WHITE : + case SFD_TRIANGULAR_PDF : + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + break ; + + default : + return SFE_DITHER_BAD_TYPE ; + } ; + + return 0 ; +} /* DO_NOT_USE_sf_dither_float */ + +int +DO_NOT_USE_sf_dither_double (const SF_DITHER_INFO *dither, const double *in, double *out, int frames, int channels) +{ int ch, k ; + + if (! dither) + return SFE_DITHER_BAD_PTR ; + + switch (dither->type & SFD_TYPEMASK) + { case SFD_WHITE : + case SFD_TRIANGULAR_PDF : + for (ch = 0 ; ch < channels ; ch++) + for (k = ch ; k < channels * frames ; k += channels) + out [k] = in [k] ; + break ; + + default : + return SFE_DITHER_BAD_TYPE ; + } ; + + return 0 ; +} /* DO_NOT_USE_sf_dither_double */ + +#endif + diff --git a/src/double64.c b/src/double64.c new file mode 100644 index 0000000..425088b --- /dev/null +++ b/src/double64.c @@ -0,0 +1,1043 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <limits.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if CPU_IS_LITTLE_ENDIAN + #define DOUBLE64_READ double64_le_read + #define DOUBLE64_WRITE double64_le_write +#elif CPU_IS_BIG_ENDIAN + #define DOUBLE64_READ double64_be_read + #define DOUBLE64_WRITE double64_be_write +#endif + +/* A 32 number which will not overflow when multiplied by sizeof (double). */ +#define SENSIBLE_LEN (0x8000000) + +/*-------------------------------------------------------------------------------------------- +** Processor floating point capabilities. double64_get_capability () returns one of the +** latter three values. +*/ + +enum +{ DOUBLE_UNKNOWN = 0x00, + DOUBLE_CAN_RW_LE = 0x23, + DOUBLE_CAN_RW_BE = 0x34, + DOUBLE_BROKEN_LE = 0x45, + DOUBLE_BROKEN_BE = 0x56 +} ; + +/*-------------------------------------------------------------------------------------------- +** Prototypes for private functions. +*/ + +static sf_count_t host_read_d2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t host_read_d2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t host_read_d2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t host_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t host_write_s2d (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t host_write_i2d (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t host_write_f2d (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t host_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void double64_peak_update (SF_PRIVATE *psf, const double *buffer, int count, sf_count_t indx) ; + +static int double64_get_capability (SF_PRIVATE *psf) ; + +static sf_count_t replace_read_d2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t replace_read_d2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t replace_read_d2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t replace_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t replace_write_s2d (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t replace_write_i2d (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t replace_write_f2d (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t replace_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void d2bd_read (double *buffer, int count) ; +static void bd2d_write (double *buffer, int count) ; + +/*-------------------------------------------------------------------------------------------- +** Exported functions. +*/ + +int +double64_init (SF_PRIVATE *psf) +{ static int double64_caps ; + + double64_caps = double64_get_capability (psf) ; + + psf->blockwidth = sizeof (double) * psf->sf.channels ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { switch (psf->endian + double64_caps) + { case (SF_ENDIAN_BIG + DOUBLE_CAN_RW_BE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = host_read_d2s ; + psf->read_int = host_read_d2i ; + psf->read_float = host_read_d2f ; + psf->read_double = host_read_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_CAN_RW_LE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = host_read_d2s ; + psf->read_int = host_read_d2i ; + psf->read_float = host_read_d2f ; + psf->read_double = host_read_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_CAN_RW_LE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = host_read_d2s ; + psf->read_int = host_read_d2i ; + psf->read_float = host_read_d2f ; + psf->read_double = host_read_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_CAN_RW_BE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = host_read_d2s ; + psf->read_int = host_read_d2i ; + psf->read_float = host_read_d2f ; + psf->read_double = host_read_d ; + break ; + + /* When the CPU is not IEEE compatible. */ + case (SF_ENDIAN_BIG + DOUBLE_BROKEN_BE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = replace_read_d2s ; + psf->read_int = replace_read_d2i ; + psf->read_float = replace_read_d2f ; + psf->read_double = replace_read_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_BROKEN_LE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = replace_read_d2s ; + psf->read_int = replace_read_d2i ; + psf->read_float = replace_read_d2f ; + psf->read_double = replace_read_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_BROKEN_LE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = replace_read_d2s ; + psf->read_int = replace_read_d2i ; + psf->read_float = replace_read_d2f ; + psf->read_double = replace_read_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_BROKEN_BE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = replace_read_d2s ; + psf->read_int = replace_read_d2i ; + psf->read_float = replace_read_d2f ; + psf->read_double = replace_read_d ; + break ; + + default : break ; + } ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { switch (psf->endian + double64_caps) + { case (SF_ENDIAN_LITTLE + DOUBLE_CAN_RW_LE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = host_write_s2d ; + psf->write_int = host_write_i2d ; + psf->write_float = host_write_f2d ; + psf->write_double = host_write_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_CAN_RW_BE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = host_write_s2d ; + psf->write_int = host_write_i2d ; + psf->write_float = host_write_f2d ; + psf->write_double = host_write_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_CAN_RW_LE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = host_write_s2d ; + psf->write_int = host_write_i2d ; + psf->write_float = host_write_f2d ; + psf->write_double = host_write_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_CAN_RW_BE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = host_write_s2d ; + psf->write_int = host_write_i2d ; + psf->write_float = host_write_f2d ; + psf->write_double = host_write_d ; + break ; + + /* When the CPU is not IEEE compatible. */ + case (SF_ENDIAN_LITTLE + DOUBLE_BROKEN_LE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = replace_write_s2d ; + psf->write_int = replace_write_i2d ; + psf->write_float = replace_write_f2d ; + psf->write_double = replace_write_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_BROKEN_BE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = replace_write_s2d ; + psf->write_int = replace_write_i2d ; + psf->write_float = replace_write_f2d ; + psf->write_double = replace_write_d ; + break ; + + case (SF_ENDIAN_BIG + DOUBLE_BROKEN_LE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = replace_write_s2d ; + psf->write_int = replace_write_i2d ; + psf->write_float = replace_write_f2d ; + psf->write_double = replace_write_d ; + break ; + + case (SF_ENDIAN_LITTLE + DOUBLE_BROKEN_BE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = replace_write_s2d ; + psf->write_int = replace_write_i2d ; + psf->write_float = replace_write_f2d ; + psf->write_double = replace_write_d ; + break ; + + default : break ; + } ; + } ; + + if (psf->filelength > psf->dataoffset) + { psf->datalength = (psf->dataend > 0) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + } + else + psf->datalength = 0 ; + + psf->sf.frames = psf->datalength / psf->blockwidth ; + + return 0 ; +} /* double64_init */ + +/*---------------------------------------------------------------------------- +** From : http://www.hpcf.cam.ac.uk/fp_formats.html +** +** 64 bit double precision layout (big endian) +** Sign bit 0 +** Exponent bits 1-11 +** Mantissa bits 12-63 +** Exponent Offset 1023 +** +** double single +** +** +INF 7FF0000000000000 7F800000 +** -INF FFF0000000000000 FF800000 +** NaN 7FF0000000000001 7F800001 +** to to +** 7FFFFFFFFFFFFFFF 7FFFFFFF +** and and +** FFF0000000000001 FF800001 +** to to +** FFFFFFFFFFFFFFFF FFFFFFFF +** +OVER 7FEFFFFFFFFFFFFF 7F7FFFFF +** -OVER FFEFFFFFFFFFFFFF FF7FFFFF +** +UNDER 0010000000000000 00800000 +** -UNDER 8010000000000000 80800000 +*/ + +double +double64_be_read (unsigned char *cptr) +{ int exponent, negative, upper, lower ; + double dvalue ; + + negative = (cptr [0] & 0x80) ? 1 : 0 ; + exponent = ((cptr [0] & 0x7F) << 4) | ((cptr [1] >> 4) & 0xF) ; + + /* Might not have a 64 bit long, so load the mantissa into a double. */ + upper = (((cptr [1] & 0xF) << 24) | (cptr [2] << 16) | (cptr [3] << 8) | cptr [4]) ; + lower = (cptr [5] << 16) | (cptr [6] << 8) | cptr [7] ; + + if (exponent == 0 && upper == 0 && lower == 0) + return 0.0 ; + + dvalue = upper + lower / ((double) 0x1000000) ; + dvalue += 0x10000000 ; + + exponent = exponent - 0x3FF ; + + dvalue = dvalue / ((double) 0x10000000) ; + + if (negative) + dvalue *= -1 ; + + if (exponent > 0) + dvalue *= pow (2.0, exponent) ; + else if (exponent < 0) + dvalue /= pow (2.0, abs (exponent)) ; + + return dvalue ; +} /* double64_be_read */ + +double +double64_le_read (unsigned char *cptr) +{ int exponent, negative, upper, lower ; + double dvalue ; + + negative = (cptr [7] & 0x80) ? 1 : 0 ; + exponent = ((cptr [7] & 0x7F) << 4) | ((cptr [6] >> 4) & 0xF) ; + + /* Might not have a 64 bit long, so load the mantissa into a double. */ + upper = ((cptr [6] & 0xF) << 24) | (cptr [5] << 16) | (cptr [4] << 8) | cptr [3] ; + lower = (cptr [2] << 16) | (cptr [1] << 8) | cptr [0] ; + + if (exponent == 0 && upper == 0 && lower == 0) + return 0.0 ; + + dvalue = upper + lower / ((double) 0x1000000) ; + dvalue += 0x10000000 ; + + exponent = exponent - 0x3FF ; + + dvalue = dvalue / ((double) 0x10000000) ; + + if (negative) + dvalue *= -1 ; + + if (exponent > 0) + dvalue *= pow (2.0, exponent) ; + else if (exponent < 0) + dvalue /= pow (2.0, abs (exponent)) ; + + return dvalue ; +} /* double64_le_read */ + +void +double64_be_write (double in, unsigned char *out) +{ int exponent, mantissa ; + + memset (out, 0, sizeof (double)) ; + + if (fabs (in) < 1e-30) + return ; + + if (in < 0.0) + { in *= -1.0 ; + out [0] |= 0x80 ; + } ; + + in = frexp (in, &exponent) ; + + exponent += 1022 ; + + out [0] |= (exponent >> 4) & 0x7F ; + out [1] |= (exponent << 4) & 0xF0 ; + + in *= 0x20000000 ; + mantissa = lrint (floor (in)) ; + + out [1] |= (mantissa >> 24) & 0xF ; + out [2] = (mantissa >> 16) & 0xFF ; + out [3] = (mantissa >> 8) & 0xFF ; + out [4] = mantissa & 0xFF ; + + in = fmod (in, 1.0) ; + in *= 0x1000000 ; + mantissa = lrint (floor (in)) ; + + out [5] = (mantissa >> 16) & 0xFF ; + out [6] = (mantissa >> 8) & 0xFF ; + out [7] = mantissa & 0xFF ; + + return ; +} /* double64_be_write */ + +void +double64_le_write (double in, unsigned char *out) +{ int exponent, mantissa ; + + memset (out, 0, sizeof (double)) ; + + if (fabs (in) < 1e-30) + return ; + + if (in < 0.0) + { in *= -1.0 ; + out [7] |= 0x80 ; + } ; + + in = frexp (in, &exponent) ; + + exponent += 1022 ; + + out [7] |= (exponent >> 4) & 0x7F ; + out [6] |= (exponent << 4) & 0xF0 ; + + in *= 0x20000000 ; + mantissa = lrint (floor (in)) ; + + out [6] |= (mantissa >> 24) & 0xF ; + out [5] = (mantissa >> 16) & 0xFF ; + out [4] = (mantissa >> 8) & 0xFF ; + out [3] = mantissa & 0xFF ; + + in = fmod (in, 1.0) ; + in *= 0x1000000 ; + mantissa = lrint (floor (in)) ; + + out [2] = (mantissa >> 16) & 0xFF ; + out [1] = (mantissa >> 8) & 0xFF ; + out [0] = mantissa & 0xFF ; + + return ; +} /* double64_le_write */ + +/*============================================================================================== +** Private functions. +*/ + +static void +double64_peak_update (SF_PRIVATE *psf, const double *buffer, int count, sf_count_t indx) +{ int chan ; + int k, position ; + float fmaxval ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { fmaxval = fabs (buffer [chan]) ; + position = 0 ; + for (k = chan ; k < count ; k += psf->sf.channels) + if (fmaxval < fabs (buffer [k])) + { fmaxval = fabs (buffer [k]) ; + position = k ; + } ; + + if (fmaxval > psf->peak_info->peaks [chan].value) + { psf->peak_info->peaks [chan].value = fmaxval ; + psf->peak_info->peaks [chan].position = psf->write_current + indx + (position / psf->sf.channels) ; + } ; + } ; + + return ; +} /* double64_peak_update */ + +static int +double64_get_capability (SF_PRIVATE *psf) +{ union + { double d ; + unsigned char c [8] ; + } data ; + + data.d = 1.234567890123456789 ; /* Some abitrary value. */ + + if (! psf->ieee_replace) + { /* If this test is true ints and floats are compatible and little endian. */ + if (data.c [0] == 0xfb && data.c [1] == 0x59 && data.c [2] == 0x8c && data.c [3] == 0x42 && + data.c [4] == 0xca && data.c [5] == 0xc0 && data.c [6] == 0xf3 && data.c [7] == 0x3f) + return DOUBLE_CAN_RW_LE ; + + /* If this test is true ints and floats are compatible and big endian. */ + if (data.c [0] == 0x3f && data.c [1] == 0xf3 && data.c [2] == 0xc0 && data.c [3] == 0xca && + data.c [4] == 0x42 && data.c [5] == 0x8c && data.c [6] == 0x59 && data.c [7] == 0xfb) + return DOUBLE_CAN_RW_BE ; + } ; + + /* Doubles are broken. Don't expect reading or writing to be fast. */ + psf_log_printf (psf, "Using IEEE replacement code for double.\n") ; + + return (CPU_IS_LITTLE_ENDIAN) ? DOUBLE_BROKEN_LE : DOUBLE_BROKEN_BE ; +} /* double64_get_capability */ + +/*======================================================================================= +*/ + +static void +d2s_array (const double *src, int count, short *dest, double scale) +{ while (--count >= 0) + { dest [count] = lrint (scale * src [count]) ; + } ; +} /* d2s_array */ + +static void +d2s_clip_array (const double *src, int count, short *dest, double scale) +{ while (--count >= 0) + { double tmp = scale * src [count] ; + + if (CPU_CLIPS_POSITIVE == 0 && tmp > 32767.0) + dest [count] = SHRT_MAX ; + else if (CPU_CLIPS_NEGATIVE == 0 && tmp < -32768.0) + dest [count] = SHRT_MIN ; + else + dest [count] = lrint (tmp) ; + } ; +} /* d2s_clip_array */ + +static void +d2i_array (const double *src, int count, int *dest, double scale) +{ while (--count >= 0) + { dest [count] = lrint (scale * src [count]) ; + } ; +} /* d2i_array */ + +static void +d2i_clip_array (const double *src, int count, int *dest, double scale) +{ while (--count >= 0) + { float tmp = scale * src [count] ; + + if (CPU_CLIPS_POSITIVE == 0 && tmp > (1.0 * INT_MAX)) + dest [count] = INT_MAX ; + else if (CPU_CLIPS_NEGATIVE == 0 && tmp < (-1.0 * INT_MAX)) + dest [count] = INT_MIN ; + else + dest [count] = lrint (tmp) ; + } ; +} /* d2i_clip_array */ + +static inline void +d2f_array (const double *src, int count, float *dest) +{ while (--count >= 0) + { dest [count] = src [count] ; + } ; +} /* d2f_array */ + +static inline void +s2d_array (const short *src, double *dest, int count, double scale) +{ while (--count >= 0) + { dest [count] = scale * src [count] ; + } ; +} /* s2d_array */ + +static inline void +i2d_array (const int *src, double *dest, int count, double scale) +{ while (--count >= 0) + { dest [count] = scale * src [count] ; + } ; +} /* i2d_array */ + +static inline void +f2d_array (const float *src, double *dest, int count) +{ while (--count >= 0) + { dest [count] = src [count] ; + } ; +} /* f2d_array */ + +/*---------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +host_read_d2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ void (*convert) (const double *, int, short *, double) ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + double scale ; + + convert = (psf->add_clipping) ? d2s_clip_array : d2s_array ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, readcount) ; + + convert (psf->u.dbuf, readcount, ptr + total, scale) ; + total += readcount ; + len -= readcount ; + if (readcount < bufferlen) + break ; + } ; + + return total ; +} /* host_read_d2s */ + +static sf_count_t +host_read_d2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ void (*convert) (const double *, int, int *, double) ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + double scale ; + + convert = (psf->add_clipping) ? d2i_clip_array : d2i_array ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFFFFFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + convert (psf->u.dbuf, readcount, ptr + total, scale) ; + total += readcount ; + len -= readcount ; + if (readcount < bufferlen) + break ; + } ; + + return total ; +} /* host_read_d2i */ + +static sf_count_t +host_read_d2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + d2f_array (psf->u.dbuf, readcount, ptr + total) ; + total += readcount ; + len -= readcount ; + if (readcount < bufferlen) + break ; + } ; + + return total ; +} /* host_read_d2f */ + +static sf_count_t +host_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen ; + sf_count_t readcount, total = 0 ; + + readcount = psf_fread (ptr, sizeof (double), len, psf) ; + + if (psf->data_endswap != SF_TRUE) + return readcount ; + + /* If the read length was sensible, endswap output in one go. */ + if (readcount < SENSIBLE_LEN) + { endswap_double_array (ptr, readcount) ; + return readcount ; + } ; + + bufferlen = SENSIBLE_LEN ; + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + endswap_double_array (ptr + total, bufferlen) ; + + total += bufferlen ; + len -= bufferlen ; + } ; + + return total ; +} /* host_read_d */ + +static sf_count_t +host_write_s2d (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + s2d_array (ptr + total, psf->u.dbuf, bufferlen, scale) ; + + if (psf->peak_info) + double64_peak_update (psf, psf->u.dbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_s2d */ + +static sf_count_t +host_write_i2d (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2d_array (ptr + total, psf->u.dbuf, bufferlen, scale) ; + + if (psf->peak_info) + double64_peak_update (psf, psf->u.dbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_i2d */ + +static sf_count_t +host_write_f2d (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2d_array (ptr + total, psf->u.dbuf, bufferlen) ; + + if (psf->peak_info) + double64_peak_update (psf, psf->u.dbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_f2d */ + +static sf_count_t +host_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (psf->peak_info) + double64_peak_update (psf, ptr, len, 0) ; + + if (psf->data_endswap != SF_TRUE) + return psf_fwrite (ptr, sizeof (double), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + endswap_double_copy (psf->u.dbuf, ptr + total, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_d */ + +/*======================================================================================= +*/ + +static sf_count_t +replace_read_d2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double scale ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + d2bd_read (psf->u.dbuf, bufferlen) ; + + d2s_array (psf->u.dbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_d2s */ + +static sf_count_t +replace_read_d2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double scale ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFFFFFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + d2bd_read (psf->u.dbuf, bufferlen) ; + + d2i_array (psf->u.dbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_d2i */ + +static sf_count_t +replace_read_d2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + d2bd_read (psf->u.dbuf, bufferlen) ; + + memcpy (ptr + total, psf->u.dbuf, bufferlen * sizeof (double)) ; + + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_d2f */ + +static sf_count_t +replace_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + /* FIXME : This is probably nowhere near optimal. */ + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, readcount) ; + + d2bd_read (psf->u.dbuf, readcount) ; + + memcpy (ptr + total, psf->u.dbuf, readcount * sizeof (double)) ; + + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_d */ + +static sf_count_t +replace_write_s2d (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2d_array (ptr + total, psf->u.dbuf, bufferlen, scale) ; + + if (psf->peak_info) + double64_peak_update (psf, psf->u.dbuf, bufferlen, total / psf->sf.channels) ; + + bd2d_write (psf->u.dbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_s2d */ + +static sf_count_t +replace_write_i2d (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2d_array (ptr + total, psf->u.dbuf, bufferlen, scale) ; + + if (psf->peak_info) + double64_peak_update (psf, psf->u.dbuf, bufferlen, total / psf->sf.channels) ; + + bd2d_write (psf->u.dbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_i2d */ + +static sf_count_t +replace_write_f2d (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2d_array (ptr + total, psf->u.dbuf, bufferlen) ; + + bd2d_write (psf->u.dbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_f2d */ + +static sf_count_t +replace_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + /* FIXME : This is probably nowhere near optimal. */ + if (psf->peak_info) + double64_peak_update (psf, ptr, len, 0) ; + + bufferlen = ARRAY_LEN (psf->u.dbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + memcpy (psf->u.dbuf, ptr + total, bufferlen * sizeof (double)) ; + + bd2d_write (psf->u.dbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_double_array (psf->u.dbuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.dbuf, sizeof (double), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_d */ + +/*---------------------------------------------------------------------------------------------- +*/ + +static void +d2bd_read (double *buffer, int count) +{ while (--count >= 0) + { buffer [count] = DOUBLE64_READ ((unsigned char *) (buffer + count)) ; + } ; +} /* d2bd_read */ + +static void +bd2d_write (double *buffer, int count) +{ while (--count >= 0) + { DOUBLE64_WRITE (buffer [count], (unsigned char*) (buffer + count)) ; + } ; +} /* bd2d_write */ + diff --git a/src/dwd.c b/src/dwd.c new file mode 100644 index 0000000..fba7b0c --- /dev/null +++ b/src/dwd.c @@ -0,0 +1,200 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (ENABLE_EXPERIMENTAL_CODE == 0) + +int +dwd_open (SF_PRIVATE *psf) +{ if (psf) + return SFE_UNIMPLEMENTED ; + return 0 ; +} /* dwd_open */ + +#else + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define SFE_DWD_NO_DWD 1666 +#define SFE_DWD_BAND_BIT_WIDTH 1667 +#define SFE_DWD_COMPRESSION 1668 + +#define DWD_IDENTIFIER "DiamondWare Digitized\n\0\x1a" +#define DWD_IDENTIFIER_LEN 24 + +#define DWD_HEADER_LEN 57 + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int dwd_read_header (SF_PRIVATE *psf) ; + +static int dwd_close (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +dwd_open (SF_PRIVATE *psf) +{ int error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = dwd_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_DWD) + return SFE_BAD_OPEN_FORMAT ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { + /*-psf->endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_LITTLE_ENDIAN && psf->endian == SF_ENDIAN_CPU) + psf->endian = SF_ENDIAN_LITTLE ; + else if (psf->endian != SF_ENDIAN_LITTLE) + psf->endian = SF_ENDIAN_BIG ; + + if (! (encoding = dwd_write_header (psf, SF_FALSE))) + return psf->error ; + + psf->write_header = dwd_write_header ; + -*/ + } ; + + psf->container_close = dwd_close ; + + /*-psf->blockwidth = psf->bytewidth * psf->sf.channels ;-*/ + + return error ; +} /* dwd_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +dwd_close (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* dwd_close */ + +/* This struct contains all the fields of interest om the DWD header, but does not +** do so in the same order and layout as the actual file, header. +** No assumptions are made about the packing of this struct. +*/ +typedef struct +{ unsigned char major, minor, compression, channels, bitwidth ; + unsigned short srate, maxval ; + unsigned int id, datalen, frames, offset ; +} DWD_HEADER ; + +static int +dwd_read_header (SF_PRIVATE *psf) +{ DWD_HEADER dwdh ; + + memset (psf->u.cbuf, 0, sizeof (psf->u.cbuf)) ; + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "pb", 0, psf->u.cbuf, DWD_IDENTIFIER_LEN) ; + + if (memcmp (psf->u.cbuf, DWD_IDENTIFIER, DWD_IDENTIFIER_LEN) != 0) + return SFE_DWD_NO_DWD ; + + psf_log_printf (psf, "Read only : DiamondWare Digitized (.dwd)\n", psf->u.cbuf) ; + + psf_binheader_readf (psf, "11", &dwdh.major, &dwdh.minor) ; + psf_binheader_readf (psf, "e4j1", &dwdh.id, 1, &dwdh.compression) ; + psf_binheader_readf (psf, "e211", &dwdh.srate, &dwdh.channels, &dwdh.bitwidth) ; + psf_binheader_readf (psf, "e24", &dwdh.maxval, &dwdh.datalen) ; + psf_binheader_readf (psf, "e44", &dwdh.frames, &dwdh.offset) ; + + psf_log_printf (psf, " Version Major : %d\n Version Minor : %d\n Unique ID : %08X\n", + dwdh.major, dwdh.minor, dwdh.id) ; + psf_log_printf (psf, " Compression : %d => ", dwdh.compression) ; + + if (dwdh.compression != 0) + { psf_log_printf (psf, "Unsupported compression\n") ; + return SFE_DWD_COMPRESSION ; + } + else + psf_log_printf (psf, "None\n") ; + + psf_log_printf (psf, " Sample Rate : %d\n Channels : %d\n" + " Bit Width : %d\n", + dwdh.srate, dwdh.channels, dwdh.bitwidth) ; + + switch (dwdh.bitwidth) + { case 8 : + psf->sf.format = SF_FORMAT_DWD | SF_FORMAT_PCM_S8 ; + psf->bytewidth = 1 ; + break ; + + case 16 : + psf->sf.format = SF_FORMAT_DWD | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + + default : + psf_log_printf (psf, "*** Bad bit width %d\n", dwdh.bitwidth) ; + return SFE_DWD_BAND_BIT_WIDTH ; + } ; + + if (psf->filelength != dwdh.offset + dwdh.datalen) + { psf_log_printf (psf, " Data Length : %d (should be %D)\n", dwdh.datalen, psf->filelength - dwdh.offset) ; + dwdh.datalen = (unsigned int) (psf->filelength - dwdh.offset) ; + } + else + psf_log_printf (psf, " Data Length : %d\n", dwdh.datalen) ; + + psf_log_printf (psf, " Max Value : %d\n", dwdh.maxval) ; + psf_log_printf (psf, " Frames : %d\n", dwdh.frames) ; + psf_log_printf (psf, " Data Offset : %d\n", dwdh.offset) ; + + psf->datalength = dwdh.datalen ; + psf->dataoffset = dwdh.offset ; + + psf->endian = SF_ENDIAN_LITTLE ; + + psf->sf.samplerate = dwdh.srate ; + psf->sf.channels = dwdh.channels ; + psf->sf.sections = 1 ; + + return pcm_init (psf) ; +} /* dwd_read_header */ + +/*------------------------------------------------------------------------------ +*/ + +#endif + diff --git a/src/dwvw.c b/src/dwvw.c new file mode 100644 index 0000000..562f015 --- /dev/null +++ b/src/dwvw.c @@ -0,0 +1,662 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/*=========================================================================== +** Delta Word Variable Width +** +** This decoder and encoder were implemented using information found in this +** document : http://home.swbell.net/rubywand/R011SNDFMTS.TXT +** +** According to the document, the algorithm "was invented 1991 by Magnus +** Lidstrom and is copyright 1993 by NuEdge Development". +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +typedef struct +{ int dwm_maxsize, bit_width, max_delta, span ; + int samplecount ; + int bit_count, bits, last_delta_width, last_sample ; + struct + { int index, end ; + unsigned char buffer [256] ; + } b ; +} DWVW_PRIVATE ; + +/*============================================================================================ +*/ + +static sf_count_t dwvw_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t dwvw_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t dwvw_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t dwvw_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t dwvw_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t dwvw_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t dwvw_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t dwvw_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t dwvw_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; +static int dwvw_close (SF_PRIVATE *psf) ; + +static int dwvw_decode_data (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int *ptr, int len) ; +static int dwvw_decode_load_bits (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int bit_count) ; + +static int dwvw_encode_data (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, const int *ptr, int len) ; +static void dwvw_encode_store_bits (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int data, int new_bits) ; +static void dwvw_read_reset (DWVW_PRIVATE *pdwvw) ; + +/*============================================================================================ +** DWVW initialisation function. +*/ + +int +dwvw_init (SF_PRIVATE *psf, int bitwidth) +{ DWVW_PRIVATE *pdwvw ; + + if (psf->codec_data != NULL) + { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ; + return SFE_INTERNAL ; + } ; + + if (bitwidth > 24) + return SFE_DWVW_BAD_BITWIDTH ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if ((pdwvw = calloc (1, sizeof (DWVW_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = (void*) pdwvw ; + + pdwvw->bit_width = bitwidth ; + pdwvw->dwm_maxsize = bitwidth / 2 ; + pdwvw->max_delta = 1 << (bitwidth - 1) ; + pdwvw->span = 1 << bitwidth ; + + dwvw_read_reset (pdwvw) ; + + if (psf->file.mode == SFM_READ) + { psf->read_short = dwvw_read_s ; + psf->read_int = dwvw_read_i ; + psf->read_float = dwvw_read_f ; + psf->read_double = dwvw_read_d ; + } ; + + if (psf->file.mode == SFM_WRITE) + { psf->write_short = dwvw_write_s ; + psf->write_int = dwvw_write_i ; + psf->write_float = dwvw_write_f ; + psf->write_double = dwvw_write_d ; + } ; + + psf->codec_close = dwvw_close ; + psf->seek = dwvw_seek ; + + /* FIXME : This is bogus. */ + psf->sf.frames = SF_COUNT_MAX ; + psf->datalength = psf->sf.frames ; + /* EMXIF : This is bogus. */ + + return 0 ; +} /* dwvw_init */ + +/*-------------------------------------------------------------------------------------------- +*/ + +static int +dwvw_close (SF_PRIVATE *psf) +{ DWVW_PRIVATE *pdwvw ; + + if (psf->codec_data == NULL) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE) + { static int last_values [12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } ; + + /* Write 8 zero samples to fully flush output. */ + dwvw_encode_data (psf, pdwvw, last_values, 12) ; + + /* Write the last buffer worth of data to disk. */ + psf_fwrite (pdwvw->b.buffer, 1, pdwvw->b.index, psf) ; + + if (psf->write_header) + psf->write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* dwvw_close */ + +static sf_count_t +dwvw_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset) +{ DWVW_PRIVATE *pdwvw ; + + if (! psf->codec_data) + { psf->error = SFE_INTERNAL ; + return PSF_SEEK_ERROR ; + } ; + + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + if (offset == 0) + { psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + dwvw_read_reset (pdwvw) ; + return 0 ; + } ; + + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; +} /* dwvw_seek */ + + +/*============================================================================== +*/ + +static sf_count_t +dwvw_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = dwvw_decode_data (psf, pdwvw, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = iptr [k] >> 16 ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* dwvw_read_s */ + +static sf_count_t +dwvw_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = dwvw_decode_data (psf, pdwvw, ptr, readcount) ; + + total += count ; + len -= count ; + + if (count != readcount) + break ; + } ; + + return total ; +} /* dwvw_read_i */ + +static sf_count_t +dwvw_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80000000) : 1.0 ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = dwvw_decode_data (psf, pdwvw, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (float) (iptr [k]) ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* dwvw_read_f */ + +static sf_count_t +dwvw_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80000000) : 1.0 ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = dwvw_decode_data (psf, pdwvw, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (double) (iptr [k]) ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* dwvw_read_d */ + +static int +dwvw_decode_data (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int *ptr, int len) +{ int count ; + int delta_width_modifier, delta_width, delta_negative, delta, sample ; + + /* Restore state from last decode call. */ + delta_width = pdwvw->last_delta_width ; + sample = pdwvw->last_sample ; + + for (count = 0 ; count < len ; count++) + { /* If bit_count parameter is zero get the delta_width_modifier. */ + delta_width_modifier = dwvw_decode_load_bits (psf, pdwvw, -1) ; + + /* Check for end of input bit stream. Break loop if end. */ + if (delta_width_modifier < 0) + break ; + + if (delta_width_modifier && dwvw_decode_load_bits (psf, pdwvw, 1)) + delta_width_modifier = - delta_width_modifier ; + + /* Calculate the current word width. */ + delta_width = (delta_width + delta_width_modifier + pdwvw->bit_width) % pdwvw->bit_width ; + + /* Load the delta. */ + delta = 0 ; + if (delta_width) + { delta = dwvw_decode_load_bits (psf, pdwvw, delta_width - 1) | (1 << (delta_width - 1)) ; + delta_negative = dwvw_decode_load_bits (psf, pdwvw, 1) ; + if (delta == pdwvw->max_delta - 1) + delta += dwvw_decode_load_bits (psf, pdwvw, 1) ; + if (delta_negative) + delta = -delta ; + } ; + + /* Calculate the sample */ + sample += delta ; + + if (sample >= pdwvw->max_delta) + sample -= pdwvw->span ; + else if (sample < - pdwvw->max_delta) + sample += pdwvw->span ; + + /* Store the sample justifying to the most significant bit. */ + ptr [count] = sample << (32 - pdwvw->bit_width) ; + + if (pdwvw->b.end == 0 && pdwvw->bit_count == 0) + break ; + } ; + + pdwvw->last_delta_width = delta_width ; + pdwvw->last_sample = sample ; + + pdwvw->samplecount += count ; + + return count ; +} /* dwvw_decode_data */ + +static int +dwvw_decode_load_bits (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int bit_count) +{ int output = 0, get_dwm = SF_FALSE ; + + /* + ** Depending on the value of parameter bit_count, either get the + ** required number of bits (ie bit_count > 0) or the + ** delta_width_modifier (otherwise). + */ + + if (bit_count < 0) + { get_dwm = SF_TRUE ; + /* modify bit_count to ensure we have enought bits for finding dwm. */ + bit_count = pdwvw->dwm_maxsize ; + } ; + + /* Load bits in bit reseviour. */ + while (pdwvw->bit_count < bit_count) + { if (pdwvw->b.index >= pdwvw->b.end) + { pdwvw->b.end = psf_fread (pdwvw->b.buffer, 1, sizeof (pdwvw->b.buffer), psf) ; + pdwvw->b.index = 0 ; + } ; + + /* Check for end of input stream. */ + if (bit_count < 8 && pdwvw->b.end == 0) + return -1 ; + + pdwvw->bits = (pdwvw->bits << 8) ; + + if (pdwvw->b.index < pdwvw->b.end) + { pdwvw->bits |= pdwvw->b.buffer [pdwvw->b.index] ; + pdwvw->b.index ++ ; + } ; + pdwvw->bit_count += 8 ; + } ; + + /* If asked to get bits do so. */ + if (! get_dwm) + { output = (pdwvw->bits >> (pdwvw->bit_count - bit_count)) & ((1 << bit_count) - 1) ; + pdwvw->bit_count -= bit_count ; + return output ; + } ; + + /* Otherwise must have been asked to get delta_width_modifier. */ + while (output < (pdwvw->dwm_maxsize)) + { pdwvw->bit_count -= 1 ; + if (pdwvw->bits & (1 << pdwvw->bit_count)) + break ; + output += 1 ; + } ; + + return output ; +} /* dwvw_decode_load_bits */ + +static void +dwvw_read_reset (DWVW_PRIVATE *pdwvw) +{ pdwvw->samplecount = 0 ; + pdwvw->b.index = 0 ; + pdwvw->b.end = 0 ; + pdwvw->bit_count = 0 ; + pdwvw->bits = 0 ; + pdwvw->last_delta_width = 0 ; + pdwvw->last_sample = 0 ; +} /* dwvw_read_reset */ + +static void +dwvw_encode_store_bits (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, int data, int new_bits) +{ int byte ; + + /* Shift the bits into the resevoir. */ + pdwvw->bits = (pdwvw->bits << new_bits) | (data & ((1 << new_bits) - 1)) ; + pdwvw->bit_count += new_bits ; + + /* Transfer bit to buffer. */ + while (pdwvw->bit_count >= 8) + { byte = pdwvw->bits >> (pdwvw->bit_count - 8) ; + pdwvw->bit_count -= 8 ; + pdwvw->b.buffer [pdwvw->b.index] = byte & 0xFF ; + pdwvw->b.index ++ ; + } ; + + if (pdwvw->b.index > SIGNED_SIZEOF (pdwvw->b.buffer) - 4) + { psf_fwrite (pdwvw->b.buffer, 1, pdwvw->b.index, psf) ; + pdwvw->b.index = 0 ; + } ; + + return ; +} /* dwvw_encode_store_bits */ + +#if 0 +/* Debigging routine. */ +static void +dump_bits (DWVW_PRIVATE *pdwvw) +{ int k, mask ; + + for (k = 0 ; k < 10 && k < pdwvw->b.index ; k++) + { mask = 0x80 ; + while (mask) + { putchar (mask & pdwvw->b.buffer [k] ? '1' : '0') ; + mask >>= 1 ; + } ; + putchar (' ') ; + } + + for (k = pdwvw->bit_count - 1 ; k >= 0 ; k --) + putchar (pdwvw->bits & (1 << k) ? '1' : '0') ; + + putchar ('\n') ; +} /* dump_bits */ +#endif + +#define HIGHEST_BIT(x,count) \ + { int y = x ; \ + (count) = 0 ; \ + while (y) \ + { (count) ++ ; \ + y >>= 1 ; \ + } ; \ + } ; + +static int +dwvw_encode_data (SF_PRIVATE *psf, DWVW_PRIVATE *pdwvw, const int *ptr, int len) +{ int count ; + int delta_width_modifier, delta, delta_negative, delta_width, extra_bit ; + + for (count = 0 ; count < len ; count++) + { delta = (ptr [count] >> (32 - pdwvw->bit_width)) - pdwvw->last_sample ; + + /* Calculate extra_bit if needed. */ + extra_bit = -1 ; + delta_negative = 0 ; + if (delta < -pdwvw->max_delta) + delta = pdwvw->max_delta + (delta % pdwvw->max_delta) ; + else if (delta == -pdwvw->max_delta) + { extra_bit = 1 ; + delta_negative = 1 ; + delta = pdwvw->max_delta - 1 ; + } + else if (delta > pdwvw->max_delta) + { delta_negative = 1 ; + delta = pdwvw->span - delta ; + delta = abs (delta) ; + } + else if (delta == pdwvw->max_delta) + { extra_bit = 1 ; + delta = pdwvw->max_delta - 1 ; + } + else if (delta < 0) + { delta_negative = 1 ; + delta = abs (delta) ; + } ; + + if (delta == pdwvw->max_delta - 1 && extra_bit == -1) + extra_bit = 0 ; + + /* Find width in bits of delta */ + HIGHEST_BIT (delta, delta_width) ; + + /* Calculate the delta_width_modifier */ + delta_width_modifier = (delta_width - pdwvw->last_delta_width) % pdwvw->bit_width ; + if (delta_width_modifier > pdwvw->dwm_maxsize) + delta_width_modifier -= pdwvw->bit_width ; + if (delta_width_modifier < -pdwvw->dwm_maxsize) + delta_width_modifier += pdwvw->bit_width ; + + /* Write delta_width_modifier zeros, followed by terminating '1'. */ + dwvw_encode_store_bits (psf, pdwvw, 0, abs (delta_width_modifier)) ; + if (abs (delta_width_modifier) != pdwvw->dwm_maxsize) + dwvw_encode_store_bits (psf, pdwvw, 1, 1) ; + + /* Write delta_width_modifier sign. */ + if (delta_width_modifier < 0) + dwvw_encode_store_bits (psf, pdwvw, 1, 1) ; + if (delta_width_modifier > 0) + dwvw_encode_store_bits (psf, pdwvw, 0, 1) ; + + /* Write delta and delta sign bit. */ + if (delta_width) + { dwvw_encode_store_bits (psf, pdwvw, delta, abs (delta_width) - 1) ; + dwvw_encode_store_bits (psf, pdwvw, (delta_negative ? 1 : 0), 1) ; + } ; + + /* Write extra bit!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */ + if (extra_bit >= 0) + dwvw_encode_store_bits (psf, pdwvw, extra_bit, 1) ; + + pdwvw->last_sample = ptr [count] >> (32 - pdwvw->bit_width) ; + pdwvw->last_delta_width = delta_width ; + } ; + + pdwvw->samplecount += count ; + + return count ; +} /* dwvw_encode_data */ + +static sf_count_t +dwvw_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = ptr [total + k] << 16 ; + count = dwvw_encode_data (psf, pdwvw, iptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* dwvw_write_s */ + +static sf_count_t +dwvw_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + while (len > 0) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = dwvw_encode_data (psf, pdwvw, ptr, writecount) ; + + total += count ; + len -= count ; + + if (count != writecount) + break ; + } ; + + return total ; +} /* dwvw_write_i */ + +static sf_count_t +dwvw_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : 1.0 ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = lrintf (normfact * ptr [total + k]) ; + count = dwvw_encode_data (psf, pdwvw, iptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* dwvw_write_f */ + +static sf_count_t +dwvw_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ DWVW_PRIVATE *pdwvw ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pdwvw = (DWVW_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : 1.0 ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = lrint (normfact * ptr [total + k]) ; + count = dwvw_encode_data (psf, pdwvw, iptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* dwvw_write_d */ + diff --git a/src/file_io.c b/src/file_io.c new file mode 100644 index 0000000..44f1b5a --- /dev/null +++ b/src/file_io.c @@ -0,0 +1,1547 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2003 Ross Bencina <rbencina@iprimus.com.au> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** The file is split into three sections as follows: +** - The top section (USE_WINDOWS_API == 0) for Linux, Unix and MacOSX +** systems (including Cygwin). +** - The middle section (USE_WINDOWS_API == 1) for microsoft windows +** (including MinGW) using the native windows API. +** - A legacy windows section which attempted to work around grevious +** bugs in microsoft's POSIX implementation. +*/ + +/* +** The header file sfconfig.h MUST be included before the others to ensure +** that large file support is enabled correctly on Unix systems. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#if (HAVE_DECL_S_IRGRP == 0) +#include <sf_unistd.h> +#endif + +#include <string.h> +#include <fcntl.h> +#include <errno.h> +#include <sys/stat.h> + +#include "sndfile.h" +#include "common.h" + +#define SENSIBLE_SIZE (0x40000000) + +/* +** Neat solution to the Win32/OS2 binary file flage requirement. +** If O_BINARY isn't already defined by the inclusion of the system +** headers, set it to zero. +*/ +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +static void psf_log_syserr (SF_PRIVATE *psf, int error) ; + +#if (USE_WINDOWS_API == 0) + +/*------------------------------------------------------------------------------ +** Win32 stuff at the bottom of the file. Unix and other sensible OSes here. +*/ + +static int psf_close_fd (int fd) ; +static int psf_open_fd (PSF_FILE * pfile) ; +static sf_count_t psf_get_filelen_fd (int fd) ; + +int +psf_fopen (SF_PRIVATE *psf) +{ + psf->error = 0 ; + psf->file.filedes = psf_open_fd (&psf->file) ; + + if (psf->file.filedes == - SFE_BAD_OPEN_MODE) + { psf->error = SFE_BAD_OPEN_MODE ; + psf->file.filedes = -1 ; + return psf->error ; + } ; + + if (psf->file.filedes == -1) + psf_log_syserr (psf, errno) ; + + return psf->error ; +} /* psf_fopen */ + +int +psf_fclose (SF_PRIVATE *psf) +{ int retval ; + + if (psf->virtual_io) + return 0 ; + + if (psf->file.do_not_close_descriptor) + { psf->file.filedes = -1 ; + return 0 ; + } ; + + if ((retval = psf_close_fd (psf->file.filedes)) == -1) + psf_log_syserr (psf, errno) ; + + psf->file.filedes = -1 ; + + return retval ; +} /* psf_fclose */ + +int +psf_open_rsrc (SF_PRIVATE *psf) +{ + if (psf->rsrc.filedes > 0) + return 0 ; + + /* Test for MacOSX style resource fork on HPFS or HPFS+ filesystems. */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s/rsrc", psf->file.path.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.filedes = psf_open_fd (&psf->rsrc)) >= 0) + { psf->rsrclength = psf_get_filelen_fd (psf->rsrc.filedes) ; + if (psf->rsrclength > 0 || (psf->rsrc.mode & SFM_WRITE)) + return SFE_NO_ERROR ; + psf_close_fd (psf->rsrc.filedes) ; + psf->rsrc.filedes = -1 ; + } ; + + if (psf->rsrc.filedes == - SFE_BAD_OPEN_MODE) + { psf->error = SFE_BAD_OPEN_MODE ; + return psf->error ; + } ; + + /* + ** Now try for a resource fork stored as a separate file in the same + ** directory, but preceded with a dot underscore. + */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s._%s", psf->file.dir.c, psf->file.name.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.filedes = psf_open_fd (&psf->rsrc)) >= 0) + { psf->rsrclength = psf_get_filelen_fd (psf->rsrc.filedes) ; + return SFE_NO_ERROR ; + } ; + + /* + ** Now try for a resource fork stored in a separate file in the + ** .AppleDouble/ directory. + */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s.AppleDouble/%s", psf->file.dir.c, psf->file.name.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.filedes = psf_open_fd (&psf->rsrc)) >= 0) + { psf->rsrclength = psf_get_filelen_fd (psf->rsrc.filedes) ; + return SFE_NO_ERROR ; + } ; + + /* No resource file found. */ + if (psf->rsrc.filedes == -1) + psf_log_syserr (psf, errno) ; + + psf->rsrc.filedes = -1 ; + + return psf->error ; +} /* psf_open_rsrc */ + +sf_count_t +psf_get_filelen (SF_PRIVATE *psf) +{ sf_count_t filelen ; + + if (psf->virtual_io) + return psf->vio.get_filelen (psf->vio_user_data) ; + + filelen = psf_get_filelen_fd (psf->file.filedes) ; + + if (filelen == -1) + { psf_log_syserr (psf, errno) ; + return (sf_count_t) -1 ; + } ; + + if (filelen == -SFE_BAD_STAT_SIZE) + { psf->error = SFE_BAD_STAT_SIZE ; + return (sf_count_t) -1 ; + } ; + + switch (psf->file.mode) + { case SFM_WRITE : + filelen = filelen - psf->fileoffset ; + break ; + + case SFM_READ : + if (psf->fileoffset > 0 && psf->filelength > 0) + filelen = psf->filelength ; + break ; + + case SFM_RDWR : + /* + ** Cannot open embedded files SFM_RDWR so we don't need to + ** subtract psf->fileoffset. We already have the answer we + ** need. + */ + break ; + + default : + /* Shouldn't be here, so return error. */ + filelen = -1 ; + } ; + + return filelen ; +} /* psf_get_filelen */ + +int +psf_close_rsrc (SF_PRIVATE *psf) +{ psf_close_fd (psf->rsrc.filedes) ; + psf->rsrc.filedes = -1 ; + return 0 ; +} /* psf_close_rsrc */ + +int +psf_set_stdio (SF_PRIVATE *psf) +{ int error = 0 ; + + switch (psf->file.mode) + { case SFM_RDWR : + error = SFE_OPEN_PIPE_RDWR ; + break ; + + case SFM_READ : + psf->file.filedes = 0 ; + break ; + + case SFM_WRITE : + psf->file.filedes = 1 ; + break ; + + default : + error = SFE_BAD_OPEN_MODE ; + break ; + } ; + psf->filelength = 0 ; + + return error ; +} /* psf_set_stdio */ + +void +psf_set_file (SF_PRIVATE *psf, int fd) +{ psf->file.filedes = fd ; +} /* psf_set_file */ + +int +psf_file_valid (SF_PRIVATE *psf) +{ return (psf->file.filedes >= 0) ? SF_TRUE : SF_FALSE ; +} /* psf_set_file */ + +sf_count_t +psf_fseek (SF_PRIVATE *psf, sf_count_t offset, int whence) +{ sf_count_t current_pos, new_position ; + + if (psf->virtual_io) + return psf->vio.seek (offset, whence, psf->vio_user_data) ; + + current_pos = psf_ftell (psf) ; + + switch (whence) + { case SEEK_SET : + offset += psf->fileoffset ; + break ; + + case SEEK_END : + if (psf->file.mode == SFM_WRITE) + { new_position = lseek (psf->file.filedes, offset, whence) ; + + if (new_position < 0) + psf_log_syserr (psf, errno) ; + + return new_position - psf->fileoffset ; + } ; + + /* Transform SEEK_END into a SEEK_SET, ie find the file + ** length add the requested offset (should be <= 0) to + ** get the offset wrt the start of file. + */ + whence = SEEK_SET ; + offset = lseek (psf->file.filedes, 0, SEEK_END) + offset ; + break ; + + case SEEK_CUR : + /* Translate a SEEK_CUR into a SEEK_SET. */ + offset += current_pos ; + whence = SEEK_SET ; + break ; + + default : + /* We really should not be here. */ + psf_log_printf (psf, "psf_fseek : whence is %d *****.\n", whence) ; + return 0 ; + } ; + + if (current_pos != offset) + new_position = lseek (psf->file.filedes, offset, whence) ; + else + new_position = offset ; + + if (new_position < 0) + psf_log_syserr (psf, errno) ; + + new_position -= psf->fileoffset ; + + return new_position ; +} /* psf_fseek */ + +sf_count_t +psf_fread (void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + + if (psf->virtual_io) + return psf->vio.read (ptr, bytes*items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the read down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : (ssize_t) items ; + + count = read (psf->file.filedes, ((char*) ptr) + total, (size_t) count) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + if (psf->is_pipe) + psf->pipeoffset += total ; + + return total / bytes ; +} /* psf_fread */ + +sf_count_t +psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + + if (psf->virtual_io) + return psf->vio.write (ptr, bytes*items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the writes down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : items ; + + count = write (psf->file.filedes, ((const char*) ptr) + total, count) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + if (psf->is_pipe) + psf->pipeoffset += total ; + + return total / bytes ; +} /* psf_fwrite */ + +sf_count_t +psf_ftell (SF_PRIVATE *psf) +{ sf_count_t pos ; + + if (psf->virtual_io) + return psf->vio.tell (psf->vio_user_data) ; + + if (psf->is_pipe) + return psf->pipeoffset ; + + pos = lseek (psf->file.filedes, 0, SEEK_CUR) ; + + if (pos == ((sf_count_t) -1)) + { psf_log_syserr (psf, errno) ; + return -1 ; + } ; + + return pos - psf->fileoffset ; +} /* psf_ftell */ + +static int +psf_close_fd (int fd) +{ int retval ; + + if (fd < 0) + return 0 ; + + while ((retval = close (fd)) == -1 && errno == EINTR) + /* Do nothing. */ ; + + return retval ; +} /* psf_close_fd */ + +sf_count_t +psf_fgets (char *buffer, sf_count_t bufsize, SF_PRIVATE *psf) +{ sf_count_t k = 0 ; + sf_count_t count ; + + while (k < bufsize - 1) + { count = read (psf->file.filedes, &(buffer [k]), 1) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0 || buffer [k++] == '\n') + break ; + } ; + + buffer [k] = 0 ; + + return k ; +} /* psf_fgets */ + +int +psf_is_pipe (SF_PRIVATE *psf) +{ struct stat statbuf ; + + if (psf->virtual_io) + return SF_FALSE ; + + if (fstat (psf->file.filedes, &statbuf) == -1) + { psf_log_syserr (psf, errno) ; + /* Default to maximum safety. */ + return SF_TRUE ; + } ; + + if (S_ISFIFO (statbuf.st_mode) || S_ISSOCK (statbuf.st_mode)) + return SF_TRUE ; + + return SF_FALSE ; +} /* psf_is_pipe */ + +static sf_count_t +psf_get_filelen_fd (int fd) +{ struct stat statbuf ; + + /* + ** Sanity check. + ** If everything is OK, this will be optimised out. + */ + if (sizeof (statbuf.st_size) == 4 && sizeof (sf_count_t) == 8) + return (sf_count_t) -SFE_BAD_STAT_SIZE ; + + if (fstat (fd, &statbuf) == -1) + return (sf_count_t) -1 ; + + return statbuf.st_size ; +} /* psf_get_filelen_fd */ + +int +psf_ftruncate (SF_PRIVATE *psf, sf_count_t len) +{ int retval ; + + /* Returns 0 on success, non-zero on failure. */ + if (len < 0) + return -1 ; + + if ((sizeof (off_t) < sizeof (sf_count_t)) && len > 0x7FFFFFFF) + return -1 ; + + retval = ftruncate (psf->file.filedes, len) ; + + if (retval == -1) + psf_log_syserr (psf, errno) ; + + return retval ; +} /* psf_ftruncate */ + +void +psf_init_files (SF_PRIVATE *psf) +{ psf->file.filedes = -1 ; + psf->rsrc.filedes = -1 ; + psf->file.savedes = -1 ; +} /* psf_init_files */ + +void +psf_use_rsrc (SF_PRIVATE *psf, int on_off) +{ + if (on_off) + { if (psf->file.filedes != psf->rsrc.filedes) + { psf->file.savedes = psf->file.filedes ; + psf->file.filedes = psf->rsrc.filedes ; + } ; + } + else if (psf->file.filedes == psf->rsrc.filedes) + psf->file.filedes = psf->file.savedes ; + + return ; +} /* psf_use_rsrc */ + +static int +psf_open_fd (PSF_FILE * pfile) +{ int fd, oflag, mode ; + + /* + ** Sanity check. If everything is OK, this test and the printfs will + ** be optimised out. This is meant to catch the problems caused by + ** "sfconfig.h" being included after <stdio.h>. + */ + if (sizeof (off_t) != sizeof (sf_count_t)) + { puts ("\n\n*** Fatal error : sizeof (off_t) != sizeof (sf_count_t)") ; + puts ("*** This means that libsndfile was not configured correctly.\n") ; + exit (1) ; + } ; + + switch (pfile->mode) + { case SFM_READ : + oflag = O_RDONLY | O_BINARY ; + mode = 0 ; + break ; + + case SFM_WRITE : + oflag = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ; + mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; + break ; + + case SFM_RDWR : + oflag = O_RDWR | O_CREAT | O_BINARY ; + mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH ; + break ; + + default : + return - SFE_BAD_OPEN_MODE ; + break ; + } ; + + if (mode == 0) + fd = open (pfile->path.c, oflag) ; + else + fd = open (pfile->path.c, oflag, mode) ; + + return fd ; +} /* psf_open_fd */ + +static void +psf_log_syserr (SF_PRIVATE *psf, int error) +{ + /* Only log an error if no error has been set yet. */ + if (psf->error == 0) + { psf->error = SFE_SYSTEM ; + snprintf (psf->syserr, sizeof (psf->syserr), "System error : %s.", strerror (error)) ; + } ; + + return ; +} /* psf_log_syserr */ + +void +psf_fsync (SF_PRIVATE *psf) +{ +#if HAVE_FSYNC + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + fsync (psf->file.filedes) ; +#else + psf = NULL ; +#endif +} /* psf_fsync */ + +#elif USE_WINDOWS_API + +/* Win32 file i/o functions implemented using native Win32 API */ + +#include <windows.h> +#include <io.h> + +static int psf_close_handle (HANDLE handle) ; +static HANDLE psf_open_handle (PSF_FILE * pfile) ; +static sf_count_t psf_get_filelen_handle (HANDLE handle) ; + +/* USE_WINDOWS_API */ int +psf_fopen (SF_PRIVATE *psf) +{ + psf->error = 0 ; + psf->file.handle = psf_open_handle (&psf->file) ; + + if (psf->file.handle == NULL) + psf_log_syserr (psf, GetLastError ()) ; + + return psf->error ; +} /* psf_fopen */ + +/* USE_WINDOWS_API */ int +psf_fclose (SF_PRIVATE *psf) +{ int retval ; + + if (psf->virtual_io) + return 0 ; + + if (psf->file.do_not_close_descriptor) + { psf->file.handle = NULL ; + return 0 ; + } ; + + if ((retval = psf_close_handle (psf->file.handle)) == -1) + psf_log_syserr (psf, GetLastError ()) ; + + psf->file.handle = NULL ; + + return retval ; +} /* psf_fclose */ + +/* USE_WINDOWS_API */ int +psf_open_rsrc (SF_PRIVATE *psf) +{ + if (psf->rsrc.handle != NULL) + return 0 ; + + /* Test for MacOSX style resource fork on HPFS or HPFS+ filesystems. */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s/rsrc", psf->file.path.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.handle = psf_open_handle (&psf->rsrc)) != NULL) + { psf->rsrclength = psf_get_filelen_handle (psf->rsrc.handle) ; + return SFE_NO_ERROR ; + } ; + + /* + ** Now try for a resource fork stored as a separate file in the same + ** directory, but preceded with a dot underscore. + */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s._%s", psf->file.dir.c, psf->file.name.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.handle = psf_open_handle (&psf->rsrc)) != NULL) + { psf->rsrclength = psf_get_filelen_handle (psf->rsrc.handle) ; + return SFE_NO_ERROR ; + } ; + + /* + ** Now try for a resource fork stored in a separate file in the + ** .AppleDouble/ directory. + */ + snprintf (psf->rsrc.path.c, sizeof (psf->rsrc.path.c), "%s.AppleDouble/%s", psf->file.dir.c, psf->file.name.c) ; + psf->error = SFE_NO_ERROR ; + if ((psf->rsrc.handle = psf_open_handle (&psf->rsrc)) != NULL) + { psf->rsrclength = psf_get_filelen_handle (psf->rsrc.handle) ; + return SFE_NO_ERROR ; + } ; + + /* No resource file found. */ + if (psf->rsrc.handle == NULL) + psf_log_syserr (psf, GetLastError ()) ; + + psf->rsrc.handle = NULL ; + + return psf->error ; +} /* psf_open_rsrc */ + +/* USE_WINDOWS_API */ sf_count_t +psf_get_filelen (SF_PRIVATE *psf) +{ sf_count_t filelen ; + + if (psf->virtual_io) + return psf->vio.get_filelen (psf->vio_user_data) ; + + filelen = psf_get_filelen_handle (psf->file.handle) ; + + if (filelen == -1) + { psf_log_syserr (psf, errno) ; + return (sf_count_t) -1 ; + } ; + + if (filelen == -SFE_BAD_STAT_SIZE) + { psf->error = SFE_BAD_STAT_SIZE ; + return (sf_count_t) -1 ; + } ; + + switch (psf->file.mode) + { case SFM_WRITE : + filelen = filelen - psf->fileoffset ; + break ; + + case SFM_READ : + if (psf->fileoffset > 0 && psf->filelength > 0) + filelen = psf->filelength ; + break ; + + case SFM_RDWR : + /* + ** Cannot open embedded files SFM_RDWR so we don't need to + ** subtract psf->fileoffset. We already have the answer we + ** need. + */ + break ; + + default : + /* Shouldn't be here, so return error. */ + filelen = -1 ; + } ; + + return filelen ; +} /* psf_get_filelen */ + +/* USE_WINDOWS_API */ void +psf_init_files (SF_PRIVATE *psf) +{ psf->file.handle = NULL ; + psf->rsrc.handle = NULL ; + psf->file.hsaved = NULL ; +} /* psf_init_files */ + +/* USE_WINDOWS_API */ void +psf_use_rsrc (SF_PRIVATE *psf, int on_off) +{ + if (on_off) + { if (psf->file.handle != psf->rsrc.handle) + { psf->file.hsaved = psf->file.handle ; + psf->file.handle = psf->rsrc.handle ; + } ; + } + else if (psf->file.handle == psf->rsrc.handle) + psf->file.handle = psf->file.hsaved ; + + return ; +} /* psf_use_rsrc */ + +/* USE_WINDOWS_API */ static HANDLE +psf_open_handle (PSF_FILE * pfile) +{ DWORD dwDesiredAccess ; + DWORD dwShareMode ; + DWORD dwCreationDistribution ; + HANDLE handle ; + + switch (pfile->mode) + { case SFM_READ : + dwDesiredAccess = GENERIC_READ ; + dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE ; + dwCreationDistribution = OPEN_EXISTING ; + break ; + + case SFM_WRITE : + dwDesiredAccess = GENERIC_WRITE ; + dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE ; + dwCreationDistribution = CREATE_ALWAYS ; + break ; + + case SFM_RDWR : + dwDesiredAccess = GENERIC_READ | GENERIC_WRITE ; + dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE ; + dwCreationDistribution = OPEN_ALWAYS ; + break ; + + default : + return NULL ; + } ; + + if (pfile->use_wchar) + handle = CreateFileW ( + pfile->path.wc, /* pointer to name of the file */ + dwDesiredAccess, /* access (read-write) mode */ + dwShareMode, /* share mode */ + 0, /* pointer to security attributes */ + dwCreationDistribution, /* how to create */ + FILE_ATTRIBUTE_NORMAL, /* file attributes (could use FILE_FLAG_SEQUENTIAL_SCAN) */ + NULL /* handle to file with attributes to copy */ + ) ; + else + handle = CreateFile ( + pfile->path.c, /* pointer to name of the file */ + dwDesiredAccess, /* access (read-write) mode */ + dwShareMode, /* share mode */ + 0, /* pointer to security attributes */ + dwCreationDistribution, /* how to create */ + FILE_ATTRIBUTE_NORMAL, /* file attributes (could use FILE_FLAG_SEQUENTIAL_SCAN) */ + NULL /* handle to file with attributes to copy */ + ) ; + + if (handle == INVALID_HANDLE_VALUE) + return NULL ; + + return handle ; +} /* psf_open_handle */ + +/* USE_WINDOWS_API */ static void +psf_log_syserr (SF_PRIVATE *psf, int error) +{ LPVOID lpMsgBuf ; + + /* Only log an error if no error has been set yet. */ + if (psf->error == 0) + { psf->error = SFE_SYSTEM ; + + FormatMessage ( + FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + error, + MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPTSTR) &lpMsgBuf, + 0, + NULL + ) ; + + snprintf (psf->syserr, sizeof (psf->syserr), "System error : %s", (char*) lpMsgBuf) ; + LocalFree (lpMsgBuf) ; + } ; + + return ; +} /* psf_log_syserr */ + + +/* USE_WINDOWS_API */ int +psf_close_rsrc (SF_PRIVATE *psf) +{ psf_close_handle (psf->rsrc.handle) ; + psf->rsrc.handle = NULL ; + return 0 ; +} /* psf_close_rsrc */ + + +/* USE_WINDOWS_API */ int +psf_set_stdio (SF_PRIVATE *psf) +{ HANDLE handle = NULL ; + int error = 0 ; + + switch (psf->file.mode) + { case SFM_RDWR : + error = SFE_OPEN_PIPE_RDWR ; + break ; + + case SFM_READ : + handle = GetStdHandle (STD_INPUT_HANDLE) ; + psf->file.do_not_close_descriptor = 1 ; + break ; + + case SFM_WRITE : + handle = GetStdHandle (STD_OUTPUT_HANDLE) ; + psf->file.do_not_close_descriptor = 1 ; + break ; + + default : + error = SFE_BAD_OPEN_MODE ; + break ; + } ; + + psf->file.handle = handle ; + psf->filelength = 0 ; + + return error ; +} /* psf_set_stdio */ + +/* USE_WINDOWS_API */ void +psf_set_file (SF_PRIVATE *psf, int fd) +{ HANDLE handle ; + intptr_t osfhandle ; + + osfhandle = _get_osfhandle (fd) ; + handle = (HANDLE) osfhandle ; + + psf->file.handle = handle ; +} /* psf_set_file */ + +/* USE_WINDOWS_API */ int +psf_file_valid (SF_PRIVATE *psf) +{ if (psf->file.handle == NULL) + return SF_FALSE ; + if (psf->file.handle == INVALID_HANDLE_VALUE) + return SF_FALSE ; + return SF_TRUE ; +} /* psf_set_file */ + +/* USE_WINDOWS_API */ sf_count_t +psf_fseek (SF_PRIVATE *psf, sf_count_t offset, int whence) +{ sf_count_t new_position ; + LONG lDistanceToMove, lDistanceToMoveHigh ; + DWORD dwMoveMethod ; + DWORD dwResult, dwError ; + + if (psf->virtual_io) + return psf->vio.seek (offset, whence, psf->vio_user_data) ; + + switch (whence) + { case SEEK_SET : + offset += psf->fileoffset ; + dwMoveMethod = FILE_BEGIN ; + break ; + + case SEEK_END : + dwMoveMethod = FILE_END ; + break ; + + default : + dwMoveMethod = FILE_CURRENT ; + break ; + } ; + + lDistanceToMove = (DWORD) (offset & 0xFFFFFFFF) ; + lDistanceToMoveHigh = (DWORD) ((offset >> 32) & 0xFFFFFFFF) ; + + dwResult = SetFilePointer (psf->file.handle, lDistanceToMove, &lDistanceToMoveHigh, dwMoveMethod) ; + + if (dwResult == 0xFFFFFFFF) + dwError = GetLastError () ; + else + dwError = NO_ERROR ; + + if (dwError != NO_ERROR) + { psf_log_syserr (psf, dwError) ; + return -1 ; + } ; + + new_position = (dwResult + ((__int64) lDistanceToMoveHigh << 32)) - psf->fileoffset ; + + return new_position ; +} /* psf_fseek */ + +/* USE_WINDOWS_API */ sf_count_t +psf_fread (void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + DWORD dwNumberOfBytesRead ; + + if (psf->virtual_io) + return psf->vio.read (ptr, bytes*items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the writes down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : (ssize_t) items ; + + if (ReadFile (psf->file.handle, ((char*) ptr) + total, count, &dwNumberOfBytesRead, 0) == 0) + { psf_log_syserr (psf, GetLastError ()) ; + break ; + } + else + count = dwNumberOfBytesRead ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + if (psf->is_pipe) + psf->pipeoffset += total ; + + return total / bytes ; +} /* psf_fread */ + +/* USE_WINDOWS_API */ sf_count_t +psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + DWORD dwNumberOfBytesWritten ; + + if (psf->virtual_io) + return psf->vio.write (ptr, bytes * items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the writes down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : (ssize_t) items ; + + if (WriteFile (psf->file.handle, ((const char*) ptr) + total, count, &dwNumberOfBytesWritten, 0) == 0) + { psf_log_syserr (psf, GetLastError ()) ; + break ; + } + else + count = dwNumberOfBytesWritten ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + if (psf->is_pipe) + psf->pipeoffset += total ; + + return total / bytes ; +} /* psf_fwrite */ + +/* USE_WINDOWS_API */ sf_count_t +psf_ftell (SF_PRIVATE *psf) +{ sf_count_t pos ; + LONG lDistanceToMoveLow, lDistanceToMoveHigh ; + DWORD dwResult, dwError ; + + if (psf->virtual_io) + return psf->vio.tell (psf->vio_user_data) ; + + if (psf->is_pipe) + return psf->pipeoffset ; + + lDistanceToMoveLow = 0 ; + lDistanceToMoveHigh = 0 ; + + dwResult = SetFilePointer (psf->file.handle, lDistanceToMoveLow, &lDistanceToMoveHigh, FILE_CURRENT) ; + + if (dwResult == 0xFFFFFFFF) + dwError = GetLastError () ; + else + dwError = NO_ERROR ; + + if (dwError != NO_ERROR) + { psf_log_syserr (psf, dwError) ; + return -1 ; + } ; + + pos = (dwResult + ((__int64) lDistanceToMoveHigh << 32)) ; + + return pos - psf->fileoffset ; +} /* psf_ftell */ + +/* USE_WINDOWS_API */ static int +psf_close_handle (HANDLE handle) +{ if (handle == NULL) + return 0 ; + + if (CloseHandle (handle) == 0) + return -1 ; + + return 0 ; +} /* psf_close_handle */ + +/* USE_WINDOWS_API */ sf_count_t +psf_fgets (char *buffer, sf_count_t bufsize, SF_PRIVATE *psf) +{ sf_count_t k = 0 ; + sf_count_t count ; + DWORD dwNumberOfBytesRead ; + + while (k < bufsize - 1) + { if (ReadFile (psf->file.handle, &(buffer [k]), 1, &dwNumberOfBytesRead, 0) == 0) + { psf_log_syserr (psf, GetLastError ()) ; + break ; + } + else + { count = dwNumberOfBytesRead ; + /* note that we only check for '\n' not other line endings such as CRLF */ + if (count == 0 || buffer [k++] == '\n') + break ; + } ; + } ; + + buffer [k] = 0 ; + + return k ; +} /* psf_fgets */ + +/* USE_WINDOWS_API */ int +psf_is_pipe (SF_PRIVATE *psf) +{ + if (psf->virtual_io) + return SF_FALSE ; + + if (GetFileType (psf->file.handle) == FILE_TYPE_DISK) + return SF_FALSE ; + + /* Default to maximum safety. */ + return SF_TRUE ; +} /* psf_is_pipe */ + +/* USE_WINDOWS_API */ sf_count_t +psf_get_filelen_handle (HANDLE handle) +{ sf_count_t filelen ; + DWORD dwFileSizeLow, dwFileSizeHigh, dwError = NO_ERROR ; + + dwFileSizeLow = GetFileSize (handle, &dwFileSizeHigh) ; + + if (dwFileSizeLow == 0xFFFFFFFF) + dwError = GetLastError () ; + + if (dwError != NO_ERROR) + return (sf_count_t) -1 ; + + filelen = dwFileSizeLow + ((__int64) dwFileSizeHigh << 32) ; + + return filelen ; +} /* psf_get_filelen_handle */ + +/* USE_WINDOWS_API */ void +psf_fsync (SF_PRIVATE *psf) +{ FlushFileBuffers (psf->file.handle) ; +} /* psf_fsync */ + + +/* USE_WINDOWS_API */ int +psf_ftruncate (SF_PRIVATE *psf, sf_count_t len) +{ int retval = 0 ; + LONG lDistanceToMoveLow, lDistanceToMoveHigh ; + DWORD dwResult, dwError = NO_ERROR ; + + /* This implementation trashes the current file position. + ** should it save and restore it? what if the current position is past + ** the new end of file? + */ + + /* Returns 0 on success, non-zero on failure. */ + if (len < 0) + return 1 ; + + lDistanceToMoveLow = (DWORD) (len & 0xFFFFFFFF) ; + lDistanceToMoveHigh = (DWORD) ((len >> 32) & 0xFFFFFFFF) ; + + dwResult = SetFilePointer (psf->file.handle, lDistanceToMoveLow, &lDistanceToMoveHigh, FILE_BEGIN) ; + + if (dwResult == 0xFFFFFFFF) + dwError = GetLastError () ; + + if (dwError != NO_ERROR) + { retval = -1 ; + psf_log_syserr (psf, dwError) ; + } + else + { /* Note: when SetEndOfFile is used to extend a file, the contents of the + ** new portion of the file is undefined. This is unlike chsize(), + ** which guarantees that the new portion of the file will be zeroed. + ** Not sure if this is important or not. + */ + if (SetEndOfFile (psf->file.handle) == 0) + { retval = -1 ; + psf_log_syserr (psf, GetLastError ()) ; + } ; + } ; + + return retval ; +} /* psf_ftruncate */ + + +#else +/* Win32 file i/o functions implemented using Unix-style file i/o API */ + +/* Win32 has a 64 file offset seek function: +** +** __int64 _lseeki64 (int handle, __int64 offset, int origin) ; +** +** It also has a 64 bit fstat function: +** +** int fstati64 (int, struct _stati64) ; +** +** but the fscking thing doesn't work!!!!! The file size parameter returned +** by this function is only valid up until more data is written at the end of +** the file. That makes this function completely 100% useless. +*/ + +#include <io.h> +#include <direct.h> + +/* Win32 */ int +psf_fopen (SF_PRIVATE *psf, const char *pathname, int open_mode) +{ int oflag, mode ; + + switch (open_mode) + { case SFM_READ : + oflag = O_RDONLY | O_BINARY ; + mode = 0 ; + break ; + + case SFM_WRITE : + oflag = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ; + mode = S_IRUSR | S_IWUSR | S_IRGRP ; + break ; + + case SFM_RDWR : + oflag = O_RDWR | O_CREAT | O_BINARY ; + mode = S_IRUSR | S_IWUSR | S_IRGRP ; + break ; + + default : + psf->error = SFE_BAD_OPEN_MODE ; + return -1 ; + break ; + } ; + + if (mode == 0) + psf->file.filedes = open (pathname, oflag) ; + else + psf->file.filedes = open (pathname, oflag, mode) ; + + if (psf->file.filedes == -1) + psf_log_syserr (psf, errno) ; + + return psf->file.filedes ; +} /* psf_fopen */ + +/* Win32 */ sf_count_t +psf_fseek (SF_PRIVATE *psf, sf_count_t offset, int whence) +{ sf_count_t new_position ; + + if (psf->virtual_io) + return psf->vio.seek (offset, whence, psf->vio_user_data) ; + + switch (whence) + { case SEEK_SET : + offset += psf->fileoffset ; + break ; + + case SEEK_END : + if (psf->file.mode == SFM_WRITE) + { new_position = _lseeki64 (psf->file.filedes, offset, whence) ; + + if (new_position < 0) + psf_log_syserr (psf, errno) ; + + return new_position - psf->fileoffset ; + } ; + + /* Transform SEEK_END into a SEEK_SET, ie find the file + ** length add the requested offset (should be <= 0) to + ** get the offset wrt the start of file. + */ + whence = SEEK_SET ; + offset = _lseeki64 (psf->file.filedes, 0, SEEK_END) + offset ; + break ; + + default : + /* No need to do anything about SEEK_CUR. */ + break ; + } ; + + /* + ** Bypass weird Win32-ism if necessary. + ** _lseeki64() returns an "invalid parameter" error if called with the + ** offset == 0 and whence == SEEK_CUR. + *** Use the _telli64() function instead. + */ + if (offset == 0 && whence == SEEK_CUR) + new_position = _telli64 (psf->file.filedes) ; + else + new_position = _lseeki64 (psf->file.filedes, offset, whence) ; + + if (new_position < 0) + psf_log_syserr (psf, errno) ; + + new_position -= psf->fileoffset ; + + return new_position ; +} /* psf_fseek */ + +/* Win32 */ sf_count_t +psf_fread (void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + + if (psf->virtual_io) + return psf->vio.read (ptr, bytes*items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the writes down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : (ssize_t) items ; + + count = read (psf->file.filedes, ((char*) ptr) + total, (size_t) count) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + return total / bytes ; +} /* psf_fread */ + +/* Win32 */ sf_count_t +psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf) +{ sf_count_t total = 0 ; + ssize_t count ; + + if (psf->virtual_io) + return psf->vio.write (ptr, bytes*items, psf->vio_user_data) / bytes ; + + items *= bytes ; + + /* Do this check after the multiplication above. */ + if (items <= 0) + return 0 ; + + while (items > 0) + { /* Break the writes down to a sensible size. */ + count = (items > SENSIBLE_SIZE) ? SENSIBLE_SIZE : items ; + + count = write (psf->file.filedes, ((const char*) ptr) + total, count) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0) + break ; + + total += count ; + items -= count ; + } ; + + return total / bytes ; +} /* psf_fwrite */ + +/* Win32 */ sf_count_t +psf_ftell (SF_PRIVATE *psf) +{ sf_count_t pos ; + + if (psf->virtual_io) + return psf->vio.tell (psf->vio_user_data) ; + + pos = _telli64 (psf->file.filedes) ; + + if (pos == ((sf_count_t) -1)) + { psf_log_syserr (psf, errno) ; + return -1 ; + } ; + + return pos - psf->fileoffset ; +} /* psf_ftell */ + +/* Win32 */ int +psf_fclose (SF_PRIVATE *psf) +{ int retval ; + + while ((retval = close (psf->file.filedes)) == -1 && errno == EINTR) + /* Do nothing. */ ; + + if (retval == -1) + psf_log_syserr (psf, errno) ; + + psf->file.filedes = -1 ; + + return retval ; +} /* psf_fclose */ + +/* Win32 */ sf_count_t +psf_fgets (char *buffer, sf_count_t bufsize, SF_PRIVATE *psf) +{ sf_count_t k = 0 ; + sf_count_t count ; + + while (k < bufsize - 1) + { count = read (psf->file.filedes, &(buffer [k]), 1) ; + + if (count == -1) + { if (errno == EINTR) + continue ; + + psf_log_syserr (psf, errno) ; + break ; + } ; + + if (count == 0 || buffer [k++] == '\n') + break ; + } ; + + buffer [k] = 0 ; + + return k ; +} /* psf_fgets */ + +/* Win32 */ int +psf_is_pipe (SF_PRIVATE *psf) +{ struct stat statbuf ; + + if (psf->virtual_io) + return SF_FALSE ; + + /* Not sure if this works. */ + if (fstat (psf->file.filedes, &statbuf) == -1) + { psf_log_syserr (psf, errno) ; + /* Default to maximum safety. */ + return SF_TRUE ; + } ; + + /* These macros are defined in Win32/unistd.h. */ + if (S_ISFIFO (statbuf.st_mode) || S_ISSOCK (statbuf.st_mode)) + return SF_TRUE ; + + return SF_FALSE ; +} /* psf_checkpipe */ + +/* Win32 */ sf_count_t +psf_get_filelen (SF_PRIVATE *psf) +{ +#if 0 + /* + ** Windoze is SOOOOO FUCKED!!!!!!! + ** This code should work but doesn't. Why? + ** Code below does work. + */ + struct _stati64 statbuf ; + + if (_fstati64 (psf->file.filedes, &statbuf)) + { psf_log_syserr (psf, errno) ; + return (sf_count_t) -1 ; + } ; + + return statbuf.st_size ; +#else + sf_count_t current, filelen ; + + if (psf->virtual_io) + return psf->vio.get_filelen (psf->vio_user_data) ; + + if ((current = _telli64 (psf->file.filedes)) < 0) + { psf_log_syserr (psf, errno) ; + return (sf_count_t) -1 ; + } ; + + /* + ** Lets face it, windoze if FUBAR!!! + ** + ** For some reason, I have to call _lseeki64() TWICE to get to the + ** end of the file. + ** + ** This might have been avoided if windows had implemented the POSIX + ** standard function fsync() but NO, that would have been too easy. + ** + ** I am VERY close to saying that windoze will no longer be supported + ** by libsndfile and changing the license to GPL at the same time. + */ + + _lseeki64 (psf->file.filedes, 0, SEEK_END) ; + + if ((filelen = _lseeki64 (psf->file.filedes, 0, SEEK_END)) < 0) + { psf_log_syserr (psf, errno) ; + return (sf_count_t) -1 ; + } ; + + if (filelen > current) + _lseeki64 (psf->file.filedes, current, SEEK_SET) ; + + switch (psf->file.mode) + { case SFM_WRITE : + filelen = filelen - psf->fileoffset ; + break ; + + case SFM_READ : + if (psf->fileoffset > 0 && psf->filelength > 0) + filelen = psf->filelength ; + break ; + + case SFM_RDWR : + /* + ** Cannot open embedded files SFM_RDWR so we don't need to + ** subtract psf->fileoffset. We already have the answer we + ** need. + */ + break ; + + default : + filelen = 0 ; + } ; + + return filelen ; +#endif +} /* psf_get_filelen */ + +/* Win32 */ int +psf_ftruncate (SF_PRIVATE *psf, sf_count_t len) +{ int retval ; + + /* Returns 0 on success, non-zero on failure. */ + if (len < 0) + return 1 ; + + /* The global village idiots at micorsoft decided to implement + ** nearly all the required 64 bit file offset functions except + ** for one, truncate. The fscking morons! + ** + ** This is not 64 bit file offset clean. Somone needs to clean + ** this up. + */ + if (len > 0x7FFFFFFF) + return -1 ; + + retval = chsize (psf->file.filedes, len) ; + + if (retval == -1) + psf_log_syserr (psf, errno) ; + + return retval ; +} /* psf_ftruncate */ + + +static void +psf_log_syserr (SF_PRIVATE *psf, int error) +{ + /* Only log an error if no error has been set yet. */ + if (psf->error == 0) + { psf->error = SFE_SYSTEM ; + snprintf (psf->syserr, sizeof (psf->syserr), "System error : %s", strerror (error)) ; + } ; + + return ; +} /* psf_log_syserr */ + +#endif + diff --git a/src/flac.c b/src/flac.c new file mode 100644 index 0000000..7949b0a --- /dev/null +++ b/src/flac.c @@ -0,0 +1,1324 @@ +/* +** Copyright (C) 2004-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2004 Tobias Gehrig <tgehrig@ira.uka.de> +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "common.h" + +#if HAVE_EXTERNAL_LIBS + +#include <FLAC/stream_decoder.h> +#include <FLAC/stream_encoder.h> +#include <FLAC/metadata.h> + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +#define ENC_BUFFER_SIZE 8192 + +typedef enum +{ PFLAC_PCM_SHORT = 50, + PFLAC_PCM_INT = 51, + PFLAC_PCM_FLOAT = 52, + PFLAC_PCM_DOUBLE = 53 +} PFLAC_PCM ; + +typedef struct +{ + FLAC__StreamDecoder *fsd ; + FLAC__StreamEncoder *fse ; + + PFLAC_PCM pcmtype ; + void* ptr ; + unsigned pos, len, remain ; + + FLAC__StreamMetadata *metadata ; + + const FLAC__int32 * const * wbuffer ; + FLAC__int32 * rbuffer [FLAC__MAX_CHANNELS] ; + + FLAC__int32* encbuffer ; + unsigned bufferpos ; + + const FLAC__Frame *frame ; + FLAC__bool bufferbackup ; +} FLAC_PRIVATE ; + +typedef struct +{ const char *tag ; + int type ; +} FLAC_TAG ; + +static sf_count_t flac_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; +static int flac_close (SF_PRIVATE *psf) ; + +static int flac_enc_init (SF_PRIVATE *psf) ; +static int flac_read_header (SF_PRIVATE *psf) ; + +static sf_count_t flac_read_flac2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t flac_read_flac2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t flac_read_flac2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t flac_read_flac2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t flac_write_s2flac (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t flac_write_i2flac (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t flac_write_f2flac (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t flac_write_d2flac (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void f2flac8_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void f2flac16_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void f2flac24_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void f2flac8_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void f2flac16_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void f2flac24_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac8_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac16_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac24_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac8_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac16_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; +static void d2flac24_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) ; + +static int flac_command (SF_PRIVATE *psf, int command, void *data, int datasize) ; + +/* Decoder Callbacks */ +static FLAC__StreamDecoderReadStatus sf_flac_read_callback (const FLAC__StreamDecoder *decoder, FLAC__byte buffer [], size_t *bytes, void *client_data) ; +static FLAC__StreamDecoderSeekStatus sf_flac_seek_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data) ; +static FLAC__StreamDecoderTellStatus sf_flac_tell_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data) ; +static FLAC__StreamDecoderLengthStatus sf_flac_length_callback (const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data) ; +static FLAC__bool sf_flac_eof_callback (const FLAC__StreamDecoder *decoder, void *client_data) ; +static FLAC__StreamDecoderWriteStatus sf_flac_write_callback (const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer [], void *client_data) ; +static void sf_flac_meta_callback (const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) ; +static void sf_flac_error_callback (const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) ; + +/* Encoder Callbacks */ +static FLAC__StreamEncoderSeekStatus sf_flac_enc_seek_callback (const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data) ; +static FLAC__StreamEncoderTellStatus sf_flac_enc_tell_callback (const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data) ; +static FLAC__StreamEncoderWriteStatus sf_flac_enc_write_callback (const FLAC__StreamEncoder *encoder, const FLAC__byte buffer [], size_t bytes, unsigned samples, unsigned current_frame, void *client_data) ; + +static void +s2flac8_array (const short *src, FLAC__int32 *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] >> 8 ; +} /* s2flac8_array */ + +static void +s2flac16_array (const short *src, FLAC__int32 *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] ; +} /* s2flac16_array */ + +static void +s2flac24_array (const short *src, FLAC__int32 *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] << 8 ; +} /* s2flac24_array */ + +static void +i2flac8_array (const int *src, FLAC__int32 *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] >> 24 ; +} /* i2flac8_array */ + +static void +i2flac16_array (const int *src, FLAC__int32 *dest, int count) +{ + while (--count >= 0) + dest [count] = src [count] >> 16 ; +} /* i2flac16_array */ + +static void +i2flac24_array (const int *src, FLAC__int32 *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] >> 8 ; +} /* i2flac24_array */ + +static sf_count_t +flac_buffer_copy (SF_PRIVATE *psf) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + const FLAC__Frame *frame = pflac->frame ; + const FLAC__int32* const *buffer = pflac->wbuffer ; + unsigned i = 0, j, offset ; + + /* + ** frame->header.blocksize is variable and we're using a constant blocksize + ** of FLAC__MAX_BLOCK_SIZE. + ** Check our assumptions here. + */ + if (frame->header.blocksize > FLAC__MAX_BLOCK_SIZE) + { psf_log_printf (psf, "Ooops : frame->header.blocksize (%d) > FLAC__MAX_BLOCK_SIZE (%d)\n", __func__, __LINE__, frame->header.blocksize, FLAC__MAX_BLOCK_SIZE) ; + psf->error = SFE_INTERNAL ; + return 0 ; + } ; + + if (pflac->ptr == NULL) + { /* + ** Not sure why this code is here and not elsewhere. + ** Removing it causes valgrind errors. + */ + pflac->bufferbackup = SF_TRUE ; + for (i = 0 ; i < frame->header.channels ; i++) + { + if (pflac->rbuffer [i] == NULL) + pflac->rbuffer [i] = calloc (FLAC__MAX_BLOCK_SIZE, sizeof (FLAC__int32)) ; + + memcpy (pflac->rbuffer [i], buffer [i], frame->header.blocksize * sizeof (FLAC__int32)) ; + } ; + pflac->wbuffer = (const FLAC__int32* const*) pflac->rbuffer ; + + return 0 ; + } ; + + switch (pflac->pcmtype) + { case PFLAC_PCM_SHORT : + { short *retpcm = (short*) pflac->ptr ; + int shift = 16 - frame->header.bits_per_sample ; + if (shift < 0) + { shift = abs (shift) ; + for (i = 0 ; i < frame->header.blocksize && pflac->remain > 0 ; i++) + { offset = pflac->pos + i * frame->header.channels ; + + if (pflac->bufferpos >= frame->header.blocksize) + break ; + + for (j = 0 ; j < frame->header.channels ; j++) + retpcm [offset + j] = buffer [j][pflac->bufferpos] >> shift ; + pflac->remain -= frame->header.channels ; + pflac->bufferpos++ ; + } + } + else + { for (i = 0 ; i < frame->header.blocksize && pflac->remain > 0 ; i++) + { offset = pflac->pos + i * frame->header.channels ; + + if (pflac->bufferpos >= frame->header.blocksize) + break ; + + for (j = 0 ; j < frame->header.channels ; j++) + retpcm [offset + j] = (buffer [j][pflac->bufferpos]) << shift ; + + pflac->remain -= frame->header.channels ; + pflac->bufferpos++ ; + } ; + } ; + } ; + break ; + + case PFLAC_PCM_INT : + { int *retpcm = (int*) pflac->ptr ; + int shift = 32 - frame->header.bits_per_sample ; + for (i = 0 ; i < frame->header.blocksize && pflac->remain > 0 ; i++) + { offset = pflac->pos + i * frame->header.channels ; + + if (pflac->bufferpos >= frame->header.blocksize) + break ; + + for (j = 0 ; j < frame->header.channels ; j++) + retpcm [offset + j] = buffer [j][pflac->bufferpos] << shift ; + pflac->remain -= frame->header.channels ; + pflac->bufferpos++ ; + } ; + } ; + break ; + + case PFLAC_PCM_FLOAT : + { float *retpcm = (float*) pflac->ptr ; + float norm = (psf->norm_float == SF_TRUE) ? 1.0 / (1 << (frame->header.bits_per_sample - 1)) : 1.0 ; + + for (i = 0 ; i < frame->header.blocksize && pflac->remain > 0 ; i++) + { offset = pflac->pos + i * frame->header.channels ; + + if (pflac->bufferpos >= frame->header.blocksize) + break ; + + for (j = 0 ; j < frame->header.channels ; j++) + retpcm [offset + j] = buffer [j][pflac->bufferpos] * norm ; + pflac->remain -= frame->header.channels ; + pflac->bufferpos++ ; + } ; + } ; + break ; + + case PFLAC_PCM_DOUBLE : + { double *retpcm = (double*) pflac->ptr ; + double norm = (psf->norm_double == SF_TRUE) ? 1.0 / (1 << (frame->header.bits_per_sample - 1)) : 1.0 ; + + for (i = 0 ; i < frame->header.blocksize && pflac->remain > 0 ; i++) + { offset = pflac->pos + i * frame->header.channels ; + + if (pflac->bufferpos >= frame->header.blocksize) + break ; + + for (j = 0 ; j < frame->header.channels ; j++) + retpcm [offset + j] = buffer [j][pflac->bufferpos] * norm ; + pflac->remain -= frame->header.channels ; + pflac->bufferpos++ ; + } ; + } ; + break ; + + default : + return 0 ; + } ; + + offset = i * frame->header.channels ; + pflac->pos += i * frame->header.channels ; + + return offset ; +} /* flac_buffer_copy */ + + +static FLAC__StreamDecoderReadStatus +sf_flac_read_callback (const FLAC__StreamDecoder * UNUSED (decoder), FLAC__byte buffer [], size_t *bytes, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + *bytes = psf_fread (buffer, 1, *bytes, psf) ; + if (*bytes > 0 && psf->error == 0) + return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE ; + + return FLAC__STREAM_DECODER_READ_STATUS_ABORT ; +} /* sf_flac_read_callback */ + +static FLAC__StreamDecoderSeekStatus +sf_flac_seek_callback (const FLAC__StreamDecoder * UNUSED (decoder), FLAC__uint64 absolute_byte_offset, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + psf_fseek (psf, absolute_byte_offset, SEEK_SET) ; + if (psf->error) + return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR ; + + return FLAC__STREAM_DECODER_SEEK_STATUS_OK ; +} /* sf_flac_seek_callback */ + +static FLAC__StreamDecoderTellStatus +sf_flac_tell_callback (const FLAC__StreamDecoder * UNUSED (decoder), FLAC__uint64 *absolute_byte_offset, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + *absolute_byte_offset = psf_ftell (psf) ; + if (psf->error) + return FLAC__STREAM_DECODER_TELL_STATUS_ERROR ; + + return FLAC__STREAM_DECODER_TELL_STATUS_OK ; +} /* sf_flac_tell_callback */ + +static FLAC__StreamDecoderLengthStatus +sf_flac_length_callback (const FLAC__StreamDecoder * UNUSED (decoder), FLAC__uint64 *stream_length, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + if ((*stream_length = psf->filelength) == 0) + return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR ; + + return FLAC__STREAM_DECODER_LENGTH_STATUS_OK ; +} /* sf_flac_length_callback */ + +static FLAC__bool +sf_flac_eof_callback (const FLAC__StreamDecoder *UNUSED (decoder), void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + if (psf_ftell (psf) == psf->filelength) + return SF_TRUE ; + + return SF_FALSE ; +} /* sf_flac_eof_callback */ + +static FLAC__StreamDecoderWriteStatus +sf_flac_write_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC__Frame *frame, const FLAC__int32 * const buffer [], void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + + pflac->frame = frame ; + pflac->bufferpos = 0 ; + + pflac->bufferbackup = SF_FALSE ; + pflac->wbuffer = buffer ; + + flac_buffer_copy (psf) ; + + return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE ; +} /* sf_flac_write_callback */ + +static void +sf_flac_meta_get_vorbiscomments (SF_PRIVATE *psf, const FLAC__StreamMetadata *metadata) +{ FLAC_TAG tags [] = + { { "title", SF_STR_TITLE }, + { "copyright", SF_STR_COPYRIGHT }, + { "software", SF_STR_SOFTWARE }, + { "artist", SF_STR_ARTIST }, + { "comment", SF_STR_COMMENT }, + { "date", SF_STR_DATE }, + { "album", SF_STR_ALBUM }, + { "license", SF_STR_LICENSE }, + { "tracknumber", SF_STR_TRACKNUMBER }, + { "genre", SF_STR_GENRE } + } ; + + const char *value, *cptr ; + int k, tag_num ; + + for (k = 0 ; k < ARRAY_LEN (tags) ; k++) + { tag_num = FLAC__metadata_object_vorbiscomment_find_entry_from (metadata, 0, tags [k].tag) ; + + if (tag_num < 0) + continue ; + + value = (const char*) metadata->data.vorbis_comment.comments [tag_num].entry ; + if ((cptr = strchr (value, '=')) != NULL) + value = cptr + 1 ; + + psf_log_printf (psf, " %-10s : %s\n", tags [k].tag, value) ; + psf_store_string (psf, tags [k].type, value) ; + } ; + + return ; +} /* sf_flac_meta_get_vorbiscomments */ + +static void +sf_flac_meta_callback (const FLAC__StreamDecoder * UNUSED (decoder), const FLAC__StreamMetadata *metadata, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + int bitwidth = 0 ; + + switch (metadata->type) + { case FLAC__METADATA_TYPE_STREAMINFO : + psf->sf.channels = metadata->data.stream_info.channels ; + psf->sf.samplerate = metadata->data.stream_info.sample_rate ; + psf->sf.frames = metadata->data.stream_info.total_samples ; + + psf_log_printf (psf, "FLAC Stream Metadata\n Channels : %d\n Sample rate : %d\n", psf->sf.channels, psf->sf.samplerate) ; + + if (psf->sf.frames == 0) + { psf_log_printf (psf, " Frames : 0 (bumping to SF_COUNT_MAX)\n") ; + psf->sf.frames = SF_COUNT_MAX ; + } + else + psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ; + + switch (metadata->data.stream_info.bits_per_sample) + { case 8 : + psf->sf.format |= SF_FORMAT_PCM_S8 ; + bitwidth = 8 ; + break ; + case 16 : + psf->sf.format |= SF_FORMAT_PCM_16 ; + bitwidth = 16 ; + break ; + case 24 : + psf->sf.format |= SF_FORMAT_PCM_24 ; + bitwidth = 24 ; + break ; + default : + psf_log_printf (psf, "sf_flac_meta_callback : bits_per_sample %d not yet implemented.\n", metadata->data.stream_info.bits_per_sample) ; + break ; + } ; + + if (bitwidth > 0) + psf_log_printf (psf, " Bit width : %d\n", bitwidth) ; + break ; + + case FLAC__METADATA_TYPE_VORBIS_COMMENT : + psf_log_printf (psf, "Vorbis Comment Metadata\n") ; + sf_flac_meta_get_vorbiscomments (psf, metadata) ; + break ; + + case FLAC__METADATA_TYPE_PADDING : + psf_log_printf (psf, "Padding Metadata\n") ; + break ; + + case FLAC__METADATA_TYPE_APPLICATION : + psf_log_printf (psf, "Application Metadata\n") ; + break ; + + case FLAC__METADATA_TYPE_SEEKTABLE : + psf_log_printf (psf, "Seektable Metadata\n") ; + break ; + + case FLAC__METADATA_TYPE_CUESHEET : + psf_log_printf (psf, "Cuesheet Metadata\n") ; + break ; + + case FLAC__METADATA_TYPE_PICTURE : + psf_log_printf (psf, "Picture Metadata\n") ; + break ; + + case FLAC__METADATA_TYPE_UNDEFINED : + psf_log_printf (psf, "Undefined Metadata\n") ; + break ; + + default : + psf_log_printf (psf, "sf_flac_meta_callback : metadata-type %d not yet implemented.\n", metadata->type) ; + break ; + } ; + + return ; +} /* sf_flac_meta_callback */ + +static void +sf_flac_error_callback (const FLAC__StreamDecoder * UNUSED (decoder), FLAC__StreamDecoderErrorStatus status, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + psf_log_printf (psf, "ERROR : %s\n", FLAC__StreamDecoderErrorStatusString [status]) ; + + switch (status) + { case FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC : + psf->error = SFE_FLAC_LOST_SYNC ; + break ; + case FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER : + psf->error = SFE_FLAC_BAD_HEADER ; + break ; + default : + psf->error = SFE_FLAC_UNKOWN_ERROR ; + break ; + } ; + + return ; +} /* sf_flac_error_callback */ + +static FLAC__StreamEncoderSeekStatus +sf_flac_enc_seek_callback (const FLAC__StreamEncoder * UNUSED (encoder), FLAC__uint64 absolute_byte_offset, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + psf_fseek (psf, absolute_byte_offset, SEEK_SET) ; + if (psf->error) + return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR ; + + return FLAC__STREAM_ENCODER_SEEK_STATUS_OK ; +} /* sf_flac_enc_seek_callback */ + +static FLAC__StreamEncoderTellStatus +sf_flac_enc_tell_callback (const FLAC__StreamEncoder *UNUSED (encoder), FLAC__uint64 *absolute_byte_offset, void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + *absolute_byte_offset = psf_ftell (psf) ; + if (psf->error) + return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR ; + + return FLAC__STREAM_ENCODER_TELL_STATUS_OK ; +} /* sf_flac_enc_tell_callback */ + +static FLAC__StreamEncoderWriteStatus +sf_flac_enc_write_callback (const FLAC__StreamEncoder * UNUSED (encoder), const FLAC__byte buffer [], size_t bytes, unsigned UNUSED (samples), unsigned UNUSED (current_frame), void *client_data) +{ SF_PRIVATE *psf = (SF_PRIVATE*) client_data ; + + if (psf_fwrite (buffer, 1, bytes, psf) == (sf_count_t) bytes && psf->error == 0) + return FLAC__STREAM_ENCODER_WRITE_STATUS_OK ; + + return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR ; +} /* sf_flac_enc_write_callback */ + +static void +flac_write_strings (SF_PRIVATE *psf, FLAC_PRIVATE* pflac) +{ FLAC__StreamMetadata_VorbisComment_Entry entry ; + int k, string_count = 0 ; + + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + { if (psf->strings [k].type != 0) + string_count ++ ; + } ; + + if (string_count == 0) + return ; + + if (pflac->metadata == NULL && (pflac->metadata = FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT)) == NULL) + { psf_log_printf (psf, "FLAC__metadata_object_new returned NULL\n") ; + return ; + } ; + + for (k = 0 ; k < SF_MAX_STRINGS && psf->strings [k].type != 0 ; k++) + { const char * key, * value ; + + switch (psf->strings [k].type) + { case SF_STR_SOFTWARE : + key = "software" ; + break ; + case SF_STR_TITLE : + key = "title" ; + break ; + case SF_STR_COPYRIGHT : + key = "copyright" ; + break ; + case SF_STR_ARTIST : + key = "artist" ; + break ; + case SF_STR_COMMENT : + key = "comment" ; + break ; + case SF_STR_DATE : + key = "date" ; + break ; + case SF_STR_ALBUM : + key = "album" ; + break ; + case SF_STR_LICENSE : + key = "license" ; + break ; + case SF_STR_TRACKNUMBER : + key = "tracknumber" ; + break ; + case SF_STR_GENRE : + key = "genre" ; + break ; + default : + continue ; + } ; + + value = psf->strings [k].str ; + + FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair (&entry, key, value) ; + FLAC__metadata_object_vorbiscomment_append_comment (pflac->metadata, entry, /* copy */ SF_FALSE) ; + } ; + + if (! FLAC__stream_encoder_set_metadata (pflac->fse, &pflac->metadata, 1)) + { printf ("%s %d : fail\n", __func__, __LINE__) ; + return ; + } ; + + return ; +} /* flac_write_strings */ + +static int +flac_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + int err ; + + flac_write_strings (psf, pflac) ; + + if ((err = FLAC__stream_encoder_init_stream (pflac->fse, sf_flac_enc_write_callback, sf_flac_enc_seek_callback, sf_flac_enc_tell_callback, NULL, psf)) != FLAC__STREAM_DECODER_INIT_STATUS_OK) + { psf_log_printf (psf, "Error : FLAC encoder init returned error : %s\n", FLAC__StreamEncoderInitStatusString [err]) ; + return SFE_FLAC_INIT_DECODER ; + } ; + + if (psf->error == 0) + psf->dataoffset = psf_ftell (psf) ; + pflac->encbuffer = calloc (ENC_BUFFER_SIZE, sizeof (FLAC__int32)) ; + + return psf->error ; +} /* flac_write_header */ + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +flac_open (SF_PRIVATE *psf) +{ int subformat ; + int error = 0 ; + + FLAC_PRIVATE* pflac = calloc (1, sizeof (FLAC_PRIVATE)) ; + psf->codec_data = pflac ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + { if ((error = flac_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_FLAC) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_BIG ; + psf->sf.seekable = 0 ; + + psf->str_flags = SF_STR_ALLOW_START ; + + if ((error = flac_enc_init (psf))) + return error ; + + psf->write_header = flac_write_header ; + } ; + + psf->datalength = psf->filelength ; + psf->dataoffset = 0 ; + psf->blockwidth = 0 ; + psf->bytewidth = 1 ; + + psf->container_close = flac_close ; + psf->seek = flac_seek ; + psf->command = flac_command ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : /* 8-bit FLAC. */ + case SF_FORMAT_PCM_16 : /* 16-bit FLAC. */ + case SF_FORMAT_PCM_24 : /* 24-bit FLAC. */ + error = flac_init (psf) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + return error ; +} /* flac_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +flac_close (SF_PRIVATE *psf) +{ FLAC_PRIVATE* pflac ; + int k ; + + if ((pflac = (FLAC_PRIVATE*) psf->codec_data) == NULL) + return 0 ; + + if (pflac->metadata != NULL) + FLAC__metadata_object_delete (pflac->metadata) ; + + if (psf->file.mode == SFM_WRITE) + { FLAC__stream_encoder_finish (pflac->fse) ; + FLAC__stream_encoder_delete (pflac->fse) ; + + if (pflac->encbuffer) + free (pflac->encbuffer) ; + } ; + + if (psf->file.mode == SFM_READ) + { FLAC__stream_decoder_finish (pflac->fsd) ; + FLAC__stream_decoder_delete (pflac->fsd) ; + } ; + + for (k = 0 ; k < ARRAY_LEN (pflac->rbuffer) ; k++) + free (pflac->rbuffer [k]) ; + + free (pflac) ; + psf->codec_data = NULL ; + + return 0 ; +} /* flac_close */ + +static int +flac_enc_init (SF_PRIVATE *psf) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + unsigned bps ; + + /* To cite the flac FAQ at + ** http://flac.sourceforge.net/faq.html#general__samples + ** "FLAC supports linear sample rates from 1Hz - 655350Hz in 1Hz + ** increments." + */ + if ( psf->sf.samplerate < 1 || psf->sf.samplerate > 655350 ) + { psf_log_printf (psf, "flac sample rate out of range.\n", psf->sf.samplerate) ; + return SFE_FLAC_BAD_SAMPLE_RATE ; + } ; + + psf_fseek (psf, 0, SEEK_SET) ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + bps = 8 ; + break ; + case SF_FORMAT_PCM_16 : + bps = 16 ; + break ; + case SF_FORMAT_PCM_24 : + bps = 24 ; + break ; + + default : + bps = 0 ; + break ; + } ; + + if ((pflac->fse = FLAC__stream_encoder_new ()) == NULL) + return SFE_FLAC_NEW_DECODER ; + + if (! FLAC__stream_encoder_set_channels (pflac->fse, psf->sf.channels)) + { psf_log_printf (psf, "FLAC__stream_encoder_set_channels (%d) return false.\n", psf->sf.channels) ; + return SFE_FLAC_INIT_DECODER ; + } ; + + if (! FLAC__stream_encoder_set_sample_rate (pflac->fse, psf->sf.samplerate)) + { psf_log_printf (psf, "FLAC__stream_encoder_set_sample_rate (%d) returned false.\n", psf->sf.samplerate) ; + return SFE_FLAC_BAD_SAMPLE_RATE ; + } ; + + if (! FLAC__stream_encoder_set_bits_per_sample (pflac->fse, bps)) + { psf_log_printf (psf, "FLAC__stream_encoder_set_bits_per_sample (%d) return false.\n", bps) ; + return SFE_FLAC_INIT_DECODER ; + } ; + + return 0 ; +} /* flac_enc_init */ + +static int +flac_read_header (SF_PRIVATE *psf) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + + psf_fseek (psf, 0, SEEK_SET) ; + if ((pflac->fsd = FLAC__stream_decoder_new ()) == NULL) + return SFE_FLAC_NEW_DECODER ; + + FLAC__stream_decoder_set_metadata_respond_all (pflac->fsd) ; + + if (FLAC__stream_decoder_init_stream (pflac->fsd, sf_flac_read_callback, sf_flac_seek_callback, sf_flac_tell_callback, sf_flac_length_callback, sf_flac_eof_callback, sf_flac_write_callback, sf_flac_meta_callback, sf_flac_error_callback, psf) != FLAC__STREAM_DECODER_INIT_STATUS_OK) + return SFE_FLAC_INIT_DECODER ; + + FLAC__stream_decoder_process_until_end_of_metadata (pflac->fsd) ; + + psf_log_printf (psf, "End\n") ; + + if (psf->error == 0) + { FLAC__uint64 position ; + + FLAC__stream_decoder_get_decode_position (pflac->fsd, &position) ; + psf->dataoffset = position ; + } ; + + return psf->error ; +} /* flac_read_header */ + +static int +flac_command (SF_PRIVATE * UNUSED (psf), int UNUSED (command), void * UNUSED (data), int UNUSED (datasize)) +{ + return 0 ; +} /* flac_command */ + +int +flac_init (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + { psf->read_short = flac_read_flac2s ; + psf->read_int = flac_read_flac2i ; + psf->read_float = flac_read_flac2f ; + psf->read_double = flac_read_flac2d ; + } ; + + if (psf->file.mode == SFM_WRITE) + { psf->write_short = flac_write_s2flac ; + psf->write_int = flac_write_i2flac ; + psf->write_float = flac_write_f2flac ; + psf->write_double = flac_write_d2flac ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->sf.channels ; + + if (psf->filelength > psf->dataoffset) + psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : psf->filelength - psf->dataoffset ; + else + psf->datalength = 0 ; + + return 0 ; +} /* flac_init */ + +static unsigned +flac_read_loop (SF_PRIVATE *psf, unsigned len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + + pflac->pos = 0 ; + pflac->len = len ; + pflac->remain = len ; + if (pflac->frame != NULL && pflac->bufferpos < pflac->frame->header.blocksize) + flac_buffer_copy (psf) ; + + while (pflac->pos < pflac->len) + { if (FLAC__stream_decoder_process_single (pflac->fsd) == 0) + break ; + if (FLAC__stream_decoder_get_state (pflac->fsd) >= FLAC__STREAM_DECODER_END_OF_STREAM) + break ; + } ; + + pflac->ptr = NULL ; + + return pflac->pos ; +} /* flac_read_loop */ + +static sf_count_t +flac_read_flac2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + sf_count_t total = 0, current ; + unsigned readlen ; + + pflac->pcmtype = PFLAC_PCM_SHORT ; + + while (total < len) + { pflac->ptr = ptr + total ; + readlen = (len - total > 0x1000000) ? 0x1000000 : (unsigned) (len - total) ; + current = flac_read_loop (psf, readlen) ; + if (current == 0) + break ; + total += current ; + } ; + + return total ; +} /* flac_read_flac2s */ + +static sf_count_t +flac_read_flac2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + sf_count_t total = 0, current ; + unsigned readlen ; + + pflac->pcmtype = PFLAC_PCM_INT ; + + while (total < len) + { pflac->ptr = ptr + total ; + readlen = (len - total > 0x1000000) ? 0x1000000 : (unsigned) (len - total) ; + current = flac_read_loop (psf, readlen) ; + if (current == 0) + break ; + total += current ; + } ; + + return total ; +} /* flac_read_flac2i */ + +static sf_count_t +flac_read_flac2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + sf_count_t total = 0, current ; + unsigned readlen ; + + pflac->pcmtype = PFLAC_PCM_FLOAT ; + + while (total < len) + { pflac->ptr = ptr + total ; + readlen = (len - total > 0x1000000) ? 0x1000000 : (unsigned) (len - total) ; + current = flac_read_loop (psf, readlen) ; + if (current == 0) + break ; + total += current ; + } ; + + return total ; +} /* flac_read_flac2f */ + +static sf_count_t +flac_read_flac2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + sf_count_t total = 0, current ; + unsigned readlen ; + + pflac->pcmtype = PFLAC_PCM_DOUBLE ; + + while (total < len) + { pflac->ptr = ptr + total ; + readlen = (len - total > 0x1000000) ? 0x1000000 : (unsigned) (len - total) ; + current = flac_read_loop (psf, readlen) ; + if (current == 0) + break ; + total += current ; + } ; + + return total ; +} /* flac_read_flac2d */ + +static sf_count_t +flac_write_s2flac (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + void (*convert) (const short *, FLAC__int32 *, int) ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + FLAC__int32* buffer = pflac->encbuffer ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + convert = s2flac8_array ; + break ; + case SF_FORMAT_PCM_16 : + convert = s2flac16_array ; + break ; + case SF_FORMAT_PCM_24 : + convert = s2flac24_array ; + break ; + default : + return -1 ; + } ; + + bufferlen = ENC_BUFFER_SIZE / (sizeof (FLAC__int32) * psf->sf.channels) ; + bufferlen *= psf->sf.channels ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + convert (ptr + total, buffer, writecount) ; + if (FLAC__stream_encoder_process_interleaved (pflac->fse, buffer, writecount/psf->sf.channels)) + thiswrite = writecount ; + else + break ; + total += thiswrite ; + if (thiswrite < writecount) + break ; + + len -= thiswrite ; + } ; + + return total ; +} /* flac_write_s2flac */ + +static sf_count_t +flac_write_i2flac (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + void (*convert) (const int *, FLAC__int32 *, int) ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + FLAC__int32* buffer = pflac->encbuffer ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + convert = i2flac8_array ; + break ; + case SF_FORMAT_PCM_16 : + convert = i2flac16_array ; + break ; + case SF_FORMAT_PCM_24 : + convert = i2flac24_array ; + break ; + default : + return -1 ; + } ; + + bufferlen = ENC_BUFFER_SIZE / (sizeof (FLAC__int32) * psf->sf.channels) ; + bufferlen *= psf->sf.channels ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + convert (ptr + total, buffer, writecount) ; + if (FLAC__stream_encoder_process_interleaved (pflac->fse, buffer, writecount/psf->sf.channels)) + thiswrite = writecount ; + else + break ; + total += thiswrite ; + if (thiswrite < writecount) + break ; + + len -= thiswrite ; + } ; + + return total ; +} /* flac_write_i2flac */ + +static sf_count_t +flac_write_f2flac (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + void (*convert) (const float *, FLAC__int32 *, int, int) ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + FLAC__int32* buffer = pflac->encbuffer ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + convert = (psf->add_clipping) ? f2flac8_clip_array : f2flac8_array ; + break ; + case SF_FORMAT_PCM_16 : + convert = (psf->add_clipping) ? f2flac16_clip_array : f2flac16_array ; + break ; + case SF_FORMAT_PCM_24 : + convert = (psf->add_clipping) ? f2flac24_clip_array : f2flac24_array ; + break ; + default : + return -1 ; + } ; + + bufferlen = ENC_BUFFER_SIZE / (sizeof (FLAC__int32) * psf->sf.channels) ; + bufferlen *= psf->sf.channels ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + convert (ptr + total, buffer, writecount, psf->norm_float) ; + if (FLAC__stream_encoder_process_interleaved (pflac->fse, buffer, writecount/psf->sf.channels)) + thiswrite = writecount ; + else + break ; + total += thiswrite ; + if (thiswrite < writecount) + break ; + + len -= thiswrite ; + } ; + + return total ; +} /* flac_write_f2flac */ + +static void +f2flac8_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ float normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10) : 1.0 ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7F)) + { dest [count] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10)) + { dest [count] = 0x80 ; + continue ; + } ; + dest [count] = lrintf (scaled_value) ; + } ; + + return ; +} /* f2flac8_clip_array */ + +static void +f2flac16_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ + float normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x1000) : 1.0 ; + + while (--count >= 0) { + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFF)) { + dest [count] = 0x7FFF ; + continue ; + } + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x1000)) { + dest [count] = 0x8000 ; + continue ; + } + dest [count] = lrintf (scaled_value) ; + } +} /* f2flac16_clip_array */ + +static void +f2flac24_clip_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ float normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x100000) : 1.0 ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFF)) + { dest [count] = 0x7FFFFF ; + continue ; + } ; + + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x100000)) + { dest [count] = 0x800000 ; + continue ; + } + dest [count] = lrintf (scaled_value) ; + } ; + + return ; +} /* f2flac24_clip_array */ + +static void +f2flac8_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ float normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + dest [count] = lrintf (src [count] * normfact) ; +} /* f2flac8_array */ + +static void +f2flac16_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ float normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + + while (--count >= 0) + dest [count] = lrintf (src [count] * normfact) ; +} /* f2flac16_array */ + +static void +f2flac24_array (const float *src, FLAC__int32 *dest, int count, int normalize) +{ float normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + + while (--count >= 0) + dest [count] = lrintf (src [count] * normfact) ; +} /* f2flac24_array */ + +static sf_count_t +flac_write_d2flac (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + void (*convert) (const double *, FLAC__int32 *, int, int) ; + int bufferlen, writecount, thiswrite ; + sf_count_t total = 0 ; + FLAC__int32* buffer = pflac->encbuffer ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + convert = (psf->add_clipping) ? d2flac8_clip_array : d2flac8_array ; + break ; + case SF_FORMAT_PCM_16 : + convert = (psf->add_clipping) ? d2flac16_clip_array : d2flac16_array ; + break ; + case SF_FORMAT_PCM_24 : + convert = (psf->add_clipping) ? d2flac24_clip_array : d2flac24_array ; + break ; + default : + return -1 ; + } ; + + bufferlen = ENC_BUFFER_SIZE / (sizeof (FLAC__int32) * psf->sf.channels) ; + bufferlen *= psf->sf.channels ; + + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + convert (ptr + total, buffer, writecount, psf->norm_double) ; + if (FLAC__stream_encoder_process_interleaved (pflac->fse, buffer, writecount/psf->sf.channels)) + thiswrite = writecount ; + else + break ; + total += thiswrite ; + if (thiswrite < writecount) + break ; + + len -= thiswrite ; + } ; + + return total ; +} /* flac_write_d2flac */ + +static void +d2flac8_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10) : 1.0 ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7F)) + { dest [count] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10)) + { dest [count] = 0x80 ; + continue ; + } ; + dest [count] = lrint (scaled_value) ; + } ; + + return ; +} /* d2flac8_clip_array */ + +static void +d2flac16_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x1000) : 1.0 ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFF)) + { dest [count] = 0x7FFF ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x1000)) + { dest [count] = 0x8000 ; + continue ; + } ; + dest [count] = lrint (scaled_value) ; + } ; + + return ; +} /* d2flac16_clip_array */ + +static void +d2flac24_clip_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x100000) : 1.0 ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFF)) + { dest [count] = 0x7FFFFF ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x100000)) + { dest [count] = 0x800000 ; + continue ; + } ; + dest [count] = lrint (scaled_value) ; + } ; + + return ; +} /* d2flac24_clip_array */ + +static void +d2flac8_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + dest [count] = lrint (src [count] * normfact) ; +} /* d2flac8_array */ + +static void +d2flac16_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + + while (--count >= 0) + dest [count] = lrint (src [count] * normfact) ; +} /* d2flac16_array */ + +static void +d2flac24_array (const double *src, FLAC__int32 *dest, int count, int normalize) +{ double normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + + while (--count >= 0) + dest [count] = lrint (src [count] * normfact) ; +} /* d2flac24_array */ + +static sf_count_t +flac_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset) +{ FLAC_PRIVATE* pflac = (FLAC_PRIVATE*) psf->codec_data ; + + if (pflac == NULL) + return 0 ; + + if (psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return ((sf_count_t) -1) ; + } ; + + pflac->frame = NULL ; + + if (psf->file.mode == SFM_READ) + { FLAC__uint64 position ; + if (FLAC__stream_decoder_seek_absolute (pflac->fsd, offset)) + { FLAC__stream_decoder_get_decode_position (pflac->fsd, &position) ; + return offset ; + } ; + + return ((sf_count_t) -1) ; + } ; + + /* Seeking in write mode not yet supported. */ + psf->error = SFE_BAD_SEEK ; + + return ((sf_count_t) -1) ; +} /* flac_seek */ + +#else /* HAVE_EXTERNAL_LIBS */ + +int +flac_open (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "This version of libsndfile was compiled without FLAC support.\n") ; + return SFE_UNIMPLEMENTED ; +} /* flac_open */ + +#endif diff --git a/src/float32.c b/src/float32.c new file mode 100644 index 0000000..4a87cef --- /dev/null +++ b/src/float32.c @@ -0,0 +1,996 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <limits.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if CPU_IS_LITTLE_ENDIAN + #define FLOAT32_READ float32_le_read + #define FLOAT32_WRITE float32_le_write +#elif CPU_IS_BIG_ENDIAN + #define FLOAT32_READ float32_be_read + #define FLOAT32_WRITE float32_be_write +#endif + +/*-------------------------------------------------------------------------------------------- +** Processor floating point capabilities. float32_get_capability () returns one of the +** latter four values. +*/ + +enum +{ FLOAT_UNKNOWN = 0x00, + FLOAT_CAN_RW_LE = 0x12, + FLOAT_CAN_RW_BE = 0x23, + FLOAT_BROKEN_LE = 0x34, + FLOAT_BROKEN_BE = 0x45 +} ; + +/*-------------------------------------------------------------------------------------------- +** Prototypes for private functions. +*/ + +static sf_count_t host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx) ; + +static sf_count_t replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static void bf2f_array (float *buffer, int count) ; +static void f2bf_array (float *buffer, int count) ; + +static int float32_get_capability (SF_PRIVATE *psf) ; + +/*-------------------------------------------------------------------------------------------- +** Exported functions. +*/ + +int +float32_init (SF_PRIVATE *psf) +{ static int float_caps ; + + float_caps = float32_get_capability (psf) ; + + psf->blockwidth = sizeof (float) * psf->sf.channels ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { switch (psf->endian + float_caps) + { case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = host_read_f2s ; + psf->read_int = host_read_f2i ; + psf->read_float = host_read_f ; + psf->read_double = host_read_f2d ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = host_read_f2s ; + psf->read_int = host_read_f2i ; + psf->read_float = host_read_f ; + psf->read_double = host_read_f2d ; + break ; + + case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = host_read_f2s ; + psf->read_int = host_read_f2i ; + psf->read_float = host_read_f ; + psf->read_double = host_read_f2d ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = host_read_f2s ; + psf->read_int = host_read_f2i ; + psf->read_float = host_read_f ; + psf->read_double = host_read_f2d ; + break ; + + /* When the CPU is not IEEE compatible. */ + case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = replace_read_f2s ; + psf->read_int = replace_read_f2i ; + psf->read_float = replace_read_f ; + psf->read_double = replace_read_f2d ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = replace_read_f2s ; + psf->read_int = replace_read_f2i ; + psf->read_float = replace_read_f ; + psf->read_double = replace_read_f2d ; + break ; + + case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) : + psf->data_endswap = SF_FALSE ; + psf->read_short = replace_read_f2s ; + psf->read_int = replace_read_f2i ; + psf->read_float = replace_read_f ; + psf->read_double = replace_read_f2d ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) : + psf->data_endswap = SF_TRUE ; + psf->read_short = replace_read_f2s ; + psf->read_int = replace_read_f2i ; + psf->read_float = replace_read_f ; + psf->read_double = replace_read_f2d ; + break ; + + default : break ; + } ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { switch (psf->endian + float_caps) + { case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = host_write_s2f ; + psf->write_int = host_write_i2f ; + psf->write_float = host_write_f ; + psf->write_double = host_write_d2f ; + break ; + + case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = host_write_s2f ; + psf->write_int = host_write_i2f ; + psf->write_float = host_write_f ; + psf->write_double = host_write_d2f ; + break ; + + case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = host_write_s2f ; + psf->write_int = host_write_i2f ; + psf->write_float = host_write_f ; + psf->write_double = host_write_d2f ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = host_write_s2f ; + psf->write_int = host_write_i2f ; + psf->write_float = host_write_f ; + psf->write_double = host_write_d2f ; + break ; + + /* When the CPU is not IEEE compatible. */ + case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = replace_write_s2f ; + psf->write_int = replace_write_i2f ; + psf->write_float = replace_write_f ; + psf->write_double = replace_write_d2f ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = replace_write_s2f ; + psf->write_int = replace_write_i2f ; + psf->write_float = replace_write_f ; + psf->write_double = replace_write_d2f ; + break ; + + case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) : + psf->data_endswap = SF_FALSE ; + psf->write_short = replace_write_s2f ; + psf->write_int = replace_write_i2f ; + psf->write_float = replace_write_f ; + psf->write_double = replace_write_d2f ; + break ; + + case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) : + psf->data_endswap = SF_TRUE ; + psf->write_short = replace_write_s2f ; + psf->write_int = replace_write_i2f ; + psf->write_float = replace_write_f ; + psf->write_double = replace_write_d2f ; + break ; + + default : break ; + } ; + } ; + + if (psf->filelength > psf->dataoffset) + { psf->datalength = (psf->dataend > 0) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + } + else + psf->datalength = 0 ; + + psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ; + + return 0 ; +} /* float32_init */ + +float +float32_be_read (unsigned char *cptr) +{ int exponent, mantissa, negative ; + float fvalue ; + + negative = cptr [0] & 0x80 ; + exponent = ((cptr [0] & 0x7F) << 1) | ((cptr [1] & 0x80) ? 1 : 0) ; + mantissa = ((cptr [1] & 0x7F) << 16) | (cptr [2] << 8) | (cptr [3]) ; + + if (! (exponent || mantissa)) + return 0.0 ; + + mantissa |= 0x800000 ; + exponent = exponent ? exponent - 127 : 0 ; + + fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ; + + if (negative) + fvalue *= -1 ; + + if (exponent > 0) + fvalue *= pow (2.0, exponent) ; + else if (exponent < 0) + fvalue /= pow (2.0, abs (exponent)) ; + + return fvalue ; +} /* float32_be_read */ + +float +float32_le_read (unsigned char *cptr) +{ int exponent, mantissa, negative ; + float fvalue ; + + negative = cptr [3] & 0x80 ; + exponent = ((cptr [3] & 0x7F) << 1) | ((cptr [2] & 0x80) ? 1 : 0) ; + mantissa = ((cptr [2] & 0x7F) << 16) | (cptr [1] << 8) | (cptr [0]) ; + + if (! (exponent || mantissa)) + return 0.0 ; + + mantissa |= 0x800000 ; + exponent = exponent ? exponent - 127 : 0 ; + + fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ; + + if (negative) + fvalue *= -1 ; + + if (exponent > 0) + fvalue *= pow (2.0, exponent) ; + else if (exponent < 0) + fvalue /= pow (2.0, abs (exponent)) ; + + return fvalue ; +} /* float32_le_read */ + +void +float32_le_write (float in, unsigned char *out) +{ int exponent, mantissa, negative = 0 ; + + memset (out, 0, sizeof (int)) ; + + if (fabs (in) < 1e-30) + return ; + + if (in < 0.0) + { in *= -1.0 ; + negative = 1 ; + } ; + + in = frexp (in, &exponent) ; + + exponent += 126 ; + + in *= (float) 0x1000000 ; + mantissa = (((int) in) & 0x7FFFFF) ; + + if (negative) + out [3] |= 0x80 ; + + if (exponent & 0x01) + out [2] |= 0x80 ; + + out [0] = mantissa & 0xFF ; + out [1] = (mantissa >> 8) & 0xFF ; + out [2] |= (mantissa >> 16) & 0x7F ; + out [3] |= (exponent >> 1) & 0x7F ; + + return ; +} /* float32_le_write */ + +void +float32_be_write (float in, unsigned char *out) +{ int exponent, mantissa, negative = 0 ; + + memset (out, 0, sizeof (int)) ; + + if (fabs (in) < 1e-30) + return ; + + if (in < 0.0) + { in *= -1.0 ; + negative = 1 ; + } ; + + in = frexp (in, &exponent) ; + + exponent += 126 ; + + in *= (float) 0x1000000 ; + mantissa = (((int) in) & 0x7FFFFF) ; + + if (negative) + out [0] |= 0x80 ; + + if (exponent & 0x01) + out [1] |= 0x80 ; + + out [3] = mantissa & 0xFF ; + out [2] = (mantissa >> 8) & 0xFF ; + out [1] |= (mantissa >> 16) & 0x7F ; + out [0] |= (exponent >> 1) & 0x7F ; + + return ; +} /* float32_be_write */ + +/*============================================================================================== +** Private functions. +*/ + +static void +float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx) +{ int chan ; + int k, position ; + float fmaxval ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { fmaxval = fabs (buffer [chan]) ; + position = 0 ; + for (k = chan ; k < count ; k += psf->sf.channels) + if (fmaxval < fabs (buffer [k])) + { fmaxval = fabs (buffer [k]) ; + position = k ; + } ; + + if (fmaxval > psf->peak_info->peaks [chan].value) + { psf->peak_info->peaks [chan].value = fmaxval ; + psf->peak_info->peaks [chan].position = psf->write_current + indx + (position / psf->sf.channels) ; + } ; + } ; + + return ; +} /* float32_peak_update */ + +static int +float32_get_capability (SF_PRIVATE *psf) +{ union + { float f ; + int i ; + unsigned char c [4] ; + } data ; + + data.f = (float) 1.23456789 ; /* Some abitrary value. */ + + if (! psf->ieee_replace) + { /* If this test is true ints and floats are compatible and little endian. */ + if (data.c [0] == 0x52 && data.c [1] == 0x06 && data.c [2] == 0x9e && data.c [3] == 0x3f) + return FLOAT_CAN_RW_LE ; + + /* If this test is true ints and floats are compatible and big endian. */ + if (data.c [3] == 0x52 && data.c [2] == 0x06 && data.c [1] == 0x9e && data.c [0] == 0x3f) + return FLOAT_CAN_RW_BE ; + } ; + + /* Floats are broken. Don't expect reading or writing to be fast. */ + psf_log_printf (psf, "Using IEEE replacement code for float.\n") ; + + return (CPU_IS_LITTLE_ENDIAN) ? FLOAT_BROKEN_LE : FLOAT_BROKEN_BE ; +} /* float32_get_capability */ + +/*======================================================================================= +*/ + +static void +f2s_array (const float *src, int count, short *dest, float scale) +{ + while (--count >= 0) + { dest [count] = lrintf (scale * src [count]) ; + } ; +} /* f2s_array */ + +static void +f2s_clip_array (const float *src, int count, short *dest, float scale) +{ while (--count >= 0) + { float tmp = scale * src [count] ; + + if (CPU_CLIPS_POSITIVE == 0 && tmp > 32767.0) + dest [count] = SHRT_MAX ; + else if (CPU_CLIPS_NEGATIVE == 0 && tmp < -32768.0) + dest [count] = SHRT_MIN ; + else + dest [count] = lrintf (tmp) ; + } ; +} /* f2s_clip_array */ + +static inline void +f2i_array (const float *src, int count, int *dest, float scale) +{ while (--count >= 0) + { dest [count] = lrintf (scale * src [count]) ; + } ; +} /* f2i_array */ + +static inline void +f2i_clip_array (const float *src, int count, int *dest, float scale) +{ while (--count >= 0) + { float tmp = scale * src [count] ; + + if (CPU_CLIPS_POSITIVE == 0 && tmp > (1.0 * INT_MAX)) + dest [count] = INT_MAX ; + else if (CPU_CLIPS_NEGATIVE == 0 && tmp < (-1.0 * INT_MAX)) + dest [count] = INT_MIN ; + else + dest [count] = lrintf (tmp) ; + } ; +} /* f2i_clip_array */ + +static inline void +f2d_array (const float *src, int count, double *dest) +{ while (--count >= 0) + { dest [count] = src [count] ; + } ; +} /* f2d_array */ + +static inline void +s2f_array (const short *src, float *dest, int count, float scale) +{ while (--count >= 0) + { dest [count] = scale * src [count] ; + } ; +} /* s2f_array */ + +static inline void +i2f_array (const int *src, float *dest, int count, float scale) +{ while (--count >= 0) + { dest [count] = scale * src [count] ; + } ; +} /* i2f_array */ + +static inline void +d2f_array (const double *src, float *dest, int count) +{ while (--count >= 0) + { dest [count] = src [count] ; + } ; +} /* d2f_array */ + +/*---------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ void (*convert) (const float *, int, short *, float) ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + float scale ; + + convert = (psf->add_clipping) ? f2s_clip_array : f2s_array ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + +/* Fix me : Need lef2s_array */ + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + convert (psf->u.fbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* host_read_f2s */ + +static sf_count_t +host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ void (*convert) (const float *, int, int *, float) ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + float scale ; + + convert = (psf->add_clipping) ? f2i_clip_array : f2i_array ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFFFFFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + convert (psf->u.fbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* host_read_f2i */ + +static sf_count_t +host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + if (psf->data_endswap != SF_TRUE) + return psf_fread (ptr, sizeof (float), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + endswap_int_copy ((int*) (ptr + total), psf->u.ibuf, readcount) ; + + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* host_read_f */ + +static sf_count_t +host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + +/* Fix me : Need lef2d_array */ + f2d_array (psf->u.fbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* host_read_f2d */ + +static sf_count_t +host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float scale ; + +/* Erik */ + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_s2f */ + +static sf_count_t +host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_i2f */ + +static sf_count_t +host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (psf->peak_info) + float32_peak_update (psf, ptr, len, 0) ; + + if (psf->data_endswap != SF_TRUE) + return psf_fwrite (ptr, sizeof (float), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + endswap_int_copy (psf->u.ibuf, (const int*) (ptr + total), bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_f */ + +static sf_count_t +host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + d2f_array (ptr + total, psf->u.fbuf, bufferlen) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* host_write_d2f */ + +/*======================================================================================= +*/ + +static sf_count_t +replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float scale ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + bf2f_array (psf->u.fbuf, bufferlen) ; + + f2s_array (psf->u.fbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_f2s */ + +static sf_count_t +replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float scale ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + bf2f_array (psf->u.fbuf, bufferlen) ; + + f2i_array (psf->u.fbuf, readcount, ptr + total, scale) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_f2i */ + +static sf_count_t +replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + /* FIX THIS */ + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + bf2f_array (psf->u.fbuf, bufferlen) ; + + memcpy (ptr + total, psf->u.fbuf, bufferlen * sizeof (float)) ; + + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_f */ + +static sf_count_t +replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + bf2f_array (psf->u.fbuf, bufferlen) ; + + f2d_array (psf->u.fbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* replace_read_f2d */ + +static sf_count_t +replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + f2bf_array (psf->u.fbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_s2f */ + +static sf_count_t +replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float scale ; + + scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + f2bf_array (psf->u.fbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_i2f */ + +static sf_count_t +replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + /* FIX THIS */ + if (psf->peak_info) + float32_peak_update (psf, ptr, len, 0) ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + + memcpy (psf->u.fbuf, ptr + total, bufferlen * sizeof (float)) ; + + f2bf_array (psf->u.fbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_f */ + +static sf_count_t +replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.fbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + d2f_array (ptr + total, psf->u.fbuf, bufferlen) ; + + if (psf->peak_info) + float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; + + f2bf_array (psf->u.fbuf, bufferlen) ; + + if (psf->data_endswap == SF_TRUE) + endswap_int_array (psf->u.ibuf, bufferlen) ; + + writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* replace_write_d2f */ + +/*---------------------------------------------------------------------------------------------- +*/ + +static void +bf2f_array (float *buffer, int count) +{ while (--count >= 0) + { buffer [count] = FLOAT32_READ ((unsigned char *) (buffer + count)) ; + } ; +} /* bf2f_array */ + +static void +f2bf_array (float *buffer, int count) +{ while (--count >= 0) + { FLOAT32_WRITE (buffer [count], (unsigned char*) (buffer + count)) ; + } ; +} /* f2bf_array */ + diff --git a/src/g72x.c b/src/g72x.c new file mode 100644 index 0000000..99729d3 --- /dev/null +++ b/src/g72x.c @@ -0,0 +1,604 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "G72x/g72x.h" + +/* This struct is private to the G72x code. */ +struct g72x_state ; +typedef struct g72x_state G72x_STATE ; + +typedef struct +{ /* Private data. Don't mess with it. */ + struct g72x_state * private ; + + /* Public data. Read only. */ + int blocksize, samplesperblock, bytesperblock ; + + /* Public data. Read and write. */ + int blocks_total, block_curr, sample_curr ; + unsigned char block [G72x_BLOCK_SIZE] ; + short samples [G72x_BLOCK_SIZE] ; +} G72x_PRIVATE ; + +static int psf_g72x_decode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) ; +static int psf_g72x_encode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) ; + +static sf_count_t g72x_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t g72x_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t g72x_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t g72x_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t g72x_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t g72x_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t g72x_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t g72x_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t g72x_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +static int g72x_close (SF_PRIVATE *psf) ; + + +/*============================================================================================ +** WAV G721 Reader initialisation function. +*/ + +int +g72x_init (SF_PRIVATE * psf) +{ G72x_PRIVATE *pg72x ; + int bitspersample, bytesperblock, codec ; + + if (psf->codec_data != NULL) + { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ; + return SFE_INTERNAL ; + } ; + + psf->sf.seekable = SF_FALSE ; + + if (psf->sf.channels != 1) + return SFE_G72X_NOT_MONO ; + + if ((pg72x = calloc (1, sizeof (G72x_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = (void*) pg72x ; + + pg72x->block_curr = 0 ; + pg72x->sample_curr = 0 ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_G721_32 : + codec = G721_32_BITS_PER_SAMPLE ; + bytesperblock = G721_32_BYTES_PER_BLOCK ; + bitspersample = G721_32_BITS_PER_SAMPLE ; + break ; + + case SF_FORMAT_G723_24: + codec = G723_24_BITS_PER_SAMPLE ; + bytesperblock = G723_24_BYTES_PER_BLOCK ; + bitspersample = G723_24_BITS_PER_SAMPLE ; + break ; + + case SF_FORMAT_G723_40: + codec = G723_40_BITS_PER_SAMPLE ; + bytesperblock = G723_40_BYTES_PER_BLOCK ; + bitspersample = G723_40_BITS_PER_SAMPLE ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + psf->blockwidth = psf->bytewidth = 1 ; + + psf->filelength = psf_get_filelen (psf) ; + if (psf->filelength < psf->dataoffset) + psf->filelength = psf->dataoffset ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend > 0) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->file.mode == SFM_READ) + { pg72x->private = g72x_reader_init (codec, &(pg72x->blocksize), &(pg72x->samplesperblock)) ; + if (pg72x->private == NULL) + return SFE_MALLOC_FAILED ; + + pg72x->bytesperblock = bytesperblock ; + + psf->read_short = g72x_read_s ; + psf->read_int = g72x_read_i ; + psf->read_float = g72x_read_f ; + psf->read_double = g72x_read_d ; + + psf->seek = g72x_seek ; + + if (psf->datalength % pg72x->blocksize) + { psf_log_printf (psf, "*** Odd psf->datalength (%D) should be a multiple of %d\n", psf->datalength, pg72x->blocksize) ; + pg72x->blocks_total = (psf->datalength / pg72x->blocksize) + 1 ; + } + else + pg72x->blocks_total = psf->datalength / pg72x->blocksize ; + + psf->sf.frames = pg72x->blocks_total * pg72x->samplesperblock ; + + psf_g72x_decode_block (psf, pg72x) ; + } + else if (psf->file.mode == SFM_WRITE) + { pg72x->private = g72x_writer_init (codec, &(pg72x->blocksize), &(pg72x->samplesperblock)) ; + if (pg72x->private == NULL) + return SFE_MALLOC_FAILED ; + + pg72x->bytesperblock = bytesperblock ; + + psf->write_short = g72x_write_s ; + psf->write_int = g72x_write_i ; + psf->write_float = g72x_write_f ; + psf->write_double = g72x_write_d ; + + if (psf->datalength % pg72x->blocksize) + pg72x->blocks_total = (psf->datalength / pg72x->blocksize) + 1 ; + else + pg72x->blocks_total = psf->datalength / pg72x->blocksize ; + + if (psf->datalength > 0) + psf->sf.frames = (8 * psf->datalength) / bitspersample ; + + if ((psf->sf.frames * bitspersample) / 8 != psf->datalength) + psf_log_printf (psf, "*** Warning : weird psf->datalength.\n") ; + } ; + + psf->codec_close = g72x_close ; + + return 0 ; +} /* g72x_init */ + +/*============================================================================================ +** G721 Read Functions. +*/ + +static int +psf_g72x_decode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) +{ int k ; + + pg72x->block_curr ++ ; + pg72x->sample_curr = 0 ; + + if (pg72x->block_curr > pg72x->blocks_total) + { memset (pg72x->samples, 0, G72x_BLOCK_SIZE * sizeof (short)) ; + return 1 ; + } ; + + if ((k = psf_fread (pg72x->block, 1, pg72x->bytesperblock, psf)) != pg72x->bytesperblock) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pg72x->bytesperblock) ; + + pg72x->blocksize = k ; + g72x_decode_block (pg72x->private, pg72x->block, pg72x->samples) ; + + return 1 ; +} /* psf_g72x_decode_block */ + +static int +g72x_read_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x, short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { if (pg72x->block_curr > pg72x->blocks_total) + { memset (&(ptr [indx]), 0, (len - indx) * sizeof (short)) ; + return total ; + } ; + + if (pg72x->sample_curr >= pg72x->samplesperblock) + psf_g72x_decode_block (psf, pg72x) ; + + count = pg72x->samplesperblock - pg72x->sample_curr ; + count = (len - indx > count) ? count : len - indx ; + + memcpy (&(ptr [indx]), &(pg72x->samples [pg72x->sample_curr]), count * sizeof (short)) ; + indx += count ; + pg72x->sample_curr += count ; + total = indx ; + } ; + + return total ; +} /* g72x_read_block */ + +static sf_count_t +g72x_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + int readcount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = g72x_read_block (psf, pg72x, ptr, readcount) ; + + total += count ; + len -= count ; + + if (count != readcount) + break ; + } ; + + return total ; +} /* g72x_read_s */ + +static sf_count_t +g72x_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = SF_BUFFER_LEN / sizeof (short) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = g72x_read_block (psf, pg72x, sptr, readcount) ; + + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = sptr [k] << 16 ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* g72x_read_i */ + +static sf_count_t +g72x_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = SF_BUFFER_LEN / sizeof (short) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = g72x_read_block (psf, pg72x, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * sptr [k] ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* g72x_read_f */ + +static sf_count_t +g72x_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = SF_BUFFER_LEN / sizeof (short) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = g72x_read_block (psf, pg72x, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (double) (sptr [k]) ; + + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* g72x_read_d */ + +static sf_count_t +g72x_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t UNUSED (offset)) +{ + psf_log_printf (psf, "seek unsupported\n") ; + + /* No simple solution. To do properly, would need to seek + ** to start of file and decode everything up to seek position. + ** Maybe implement SEEK_SET to 0 only? + */ + return 0 ; + +/* +** G72x_PRIVATE *pg72x ; +** int newblock, newsample, sample_curr ; +** +** if (psf->codec_data == NULL) +** return 0 ; +** pg72x = (G72x_PRIVATE*) psf->codec_data ; +** +** if (! (psf->datalength && psf->dataoffset)) +** { psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** +** sample_curr = (8 * psf->datalength) / G721_32_BITS_PER_SAMPLE ; +** +** switch (whence) +** { case SEEK_SET : +** if (offset < 0 || offset > sample_curr) +** { psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** newblock = offset / pg72x->samplesperblock ; +** newsample = offset % pg72x->samplesperblock ; +** break ; +** +** case SEEK_CUR : +** if (psf->current + offset < 0 || psf->current + offset > sample_curr) +** { psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** newblock = (8 * (psf->current + offset)) / pg72x->samplesperblock ; +** newsample = (8 * (psf->current + offset)) % pg72x->samplesperblock ; +** break ; +** +** case SEEK_END : +** if (offset > 0 || sample_curr + offset < 0) +** { psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** newblock = (sample_curr + offset) / pg72x->samplesperblock ; +** newsample = (sample_curr + offset) % pg72x->samplesperblock ; +** break ; +** +** default : +** psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** +** if (psf->file.mode == SFM_READ) +** { psf_fseek (psf, psf->dataoffset + newblock * pg72x->blocksize, SEEK_SET) ; +** pg72x->block_curr = newblock ; +** psf_g72x_decode_block (psf, pg72x) ; +** pg72x->sample_curr = newsample ; +** } +** else +** { /+* What to do about write??? *+/ +** psf->error = SFE_BAD_SEEK ; +** return PSF_SEEK_ERROR ; +** } ; +** +** psf->current = newblock * pg72x->samplesperblock + newsample ; +** return psf->current ; +** +*/ +} /* g72x_seek */ + +/*========================================================================================== +** G72x Write Functions. +*/ + +static int +psf_g72x_encode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) +{ int k ; + + /* Encode the samples. */ + g72x_encode_block (pg72x->private, pg72x->samples, pg72x->block) ; + + /* Write the block to disk. */ + if ((k = psf_fwrite (pg72x->block, 1, pg72x->blocksize, psf)) != pg72x->blocksize) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pg72x->blocksize) ; + + pg72x->sample_curr = 0 ; + pg72x->block_curr ++ ; + + /* Set samples to zero for next block. */ + memset (pg72x->samples, 0, G72x_BLOCK_SIZE * sizeof (short)) ; + + return 1 ; +} /* psf_g72x_encode_block */ + +static int +g72x_write_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x, const short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { count = pg72x->samplesperblock - pg72x->sample_curr ; + + if (count > len - indx) + count = len - indx ; + + memcpy (&(pg72x->samples [pg72x->sample_curr]), &(ptr [indx]), count * sizeof (short)) ; + indx += count ; + pg72x->sample_curr += count ; + total = indx ; + + if (pg72x->sample_curr >= pg72x->samplesperblock) + psf_g72x_encode_block (psf, pg72x) ; + } ; + + return total ; +} /* g72x_write_block */ + +static sf_count_t +g72x_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + int writecount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + while (len > 0) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = g72x_write_block (psf, pg72x, ptr, writecount) ; + + total += count ; + len -= count ; + if (count != writecount) + break ; + } ; + + return total ; +} /* g72x_write_s */ + +static sf_count_t +g72x_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ((SF_BUFFER_LEN / psf->blockwidth) * psf->blockwidth) / sizeof (short) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = ptr [total + k] >> 16 ; + count = g72x_write_block (psf, pg72x, sptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + return total ; +} /* g72x_write_i */ + +static sf_count_t +g72x_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ((SF_BUFFER_LEN / psf->blockwidth) * psf->blockwidth) / sizeof (short) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrintf (normfact * ptr [total + k]) ; + count = g72x_write_block (psf, pg72x, sptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* g72x_write_f */ + +static sf_count_t +g72x_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ G72x_PRIVATE *pg72x ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ((SF_BUFFER_LEN / psf->blockwidth) * psf->blockwidth) / sizeof (short) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrint (normfact * ptr [total + k]) ; + count = g72x_write_block (psf, pg72x, sptr, writecount) ; + + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* g72x_write_d */ + +static int +g72x_close (SF_PRIVATE *psf) +{ G72x_PRIVATE *pg72x ; + + pg72x = (G72x_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE) + { /* If a block has been partially assembled, write it out + ** as the final block. + */ + + if (pg72x->sample_curr && pg72x->sample_curr < G72x_BLOCK_SIZE) + psf_g72x_encode_block (psf, pg72x) ; + + if (psf->write_header) + psf->write_header (psf, SF_FALSE) ; + } ; + + /* Only free the pointer allocated by g72x_(reader|writer)_init. */ + free (pg72x->private) ; + + return 0 ; +} /* g72x_close */ + diff --git a/src/gsm610.c b/src/gsm610.c new file mode 100644 index 0000000..b16594e --- /dev/null +++ b/src/gsm610.c @@ -0,0 +1,621 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" +#include "GSM610/gsm.h" + +#define GSM610_BLOCKSIZE 33 +#define GSM610_SAMPLES 160 + +typedef struct gsm610_tag +{ int blocks ; + int blockcount, samplecount ; + int samplesperblock, blocksize ; + + int (*decode_block) (SF_PRIVATE *psf, struct gsm610_tag *pgsm610) ; + int (*encode_block) (SF_PRIVATE *psf, struct gsm610_tag *pgsm610) ; + + short samples [WAV_W64_GSM610_SAMPLES] ; + unsigned char block [WAV_W64_GSM610_BLOCKSIZE] ; + + /* Damn I hate typedef-ed pointers; yes, gsm is a pointer type. */ + gsm gsm_data ; +} GSM610_PRIVATE ; + +static sf_count_t gsm610_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t gsm610_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t gsm610_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t gsm610_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t gsm610_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t gsm610_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t gsm610_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t gsm610_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static int gsm610_read_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, short *ptr, int len) ; +static int gsm610_write_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, const short *ptr, int len) ; + +static int gsm610_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ; +static int gsm610_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ; + +static int gsm610_wav_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ; +static int gsm610_wav_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ; + +static sf_count_t gsm610_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +static int gsm610_close (SF_PRIVATE *psf) ; + +/*============================================================================================ +** WAV GSM610 initialisation function. +*/ + +int +gsm610_init (SF_PRIVATE *psf) +{ GSM610_PRIVATE *pgsm610 ; + int true_flag = 1 ; + + if (psf->codec_data != NULL) + { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + psf->sf.seekable = SF_FALSE ; + + if ((pgsm610 = calloc (1, sizeof (GSM610_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = pgsm610 ; + + memset (pgsm610, 0, sizeof (GSM610_PRIVATE)) ; + +/*============================================================ + +Need separate gsm_data structs for encode and decode. + +============================================================*/ + + if ((pgsm610->gsm_data = gsm_create ()) == NULL) + return SFE_MALLOC_FAILED ; + + switch (SF_CONTAINER (psf->sf.format)) + { case SF_FORMAT_WAV : + case SF_FORMAT_WAVEX : + case SF_FORMAT_W64 : + gsm_option (pgsm610->gsm_data, GSM_OPT_WAV49, &true_flag) ; + + pgsm610->encode_block = gsm610_wav_encode_block ; + pgsm610->decode_block = gsm610_wav_decode_block ; + + pgsm610->samplesperblock = WAV_W64_GSM610_SAMPLES ; + pgsm610->blocksize = WAV_W64_GSM610_BLOCKSIZE ; + break ; + + case SF_FORMAT_AIFF : + case SF_FORMAT_RAW : + pgsm610->encode_block = gsm610_encode_block ; + pgsm610->decode_block = gsm610_decode_block ; + + pgsm610->samplesperblock = GSM610_SAMPLES ; + pgsm610->blocksize = GSM610_BLOCKSIZE ; + break ; + + default : + return SFE_INTERNAL ; + break ; + } ; + + if (psf->file.mode == SFM_READ) + { if (psf->datalength % pgsm610->blocksize == 0) + pgsm610->blocks = psf->datalength / pgsm610->blocksize ; + else if (psf->datalength % pgsm610->blocksize == 1 && pgsm610->blocksize == GSM610_BLOCKSIZE) + { /* + ** Weird AIFF specific case. + ** AIFF chunks must be at an even offset from the start of file and + ** GSM610_BLOCKSIZE is odd which can result in an odd length SSND + ** chunk. The SSND chunk then gets padded on write which means that + ** when it is read the datalength is too big by 1. + */ + pgsm610->blocks = psf->datalength / pgsm610->blocksize ; + } + else + { psf_log_printf (psf, "*** Warning : data chunk seems to be truncated.\n") ; + pgsm610->blocks = psf->datalength / pgsm610->blocksize + 1 ; + } ; + + psf->sf.frames = pgsm610->samplesperblock * pgsm610->blocks ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + pgsm610->decode_block (psf, pgsm610) ; /* Read first block. */ + + psf->read_short = gsm610_read_s ; + psf->read_int = gsm610_read_i ; + psf->read_float = gsm610_read_f ; + psf->read_double = gsm610_read_d ; + } ; + + if (psf->file.mode == SFM_WRITE) + { pgsm610->blockcount = 0 ; + pgsm610->samplecount = 0 ; + + psf->write_short = gsm610_write_s ; + psf->write_int = gsm610_write_i ; + psf->write_float = gsm610_write_f ; + psf->write_double = gsm610_write_d ; + } ; + + psf->codec_close = gsm610_close ; + + psf->seek = gsm610_seek ; + + psf->filelength = psf_get_filelen (psf) ; + psf->datalength = psf->filelength - psf->dataoffset ; + + return 0 ; +} /* gsm610_init */ + +/*============================================================================================ +** GSM 6.10 Read Functions. +*/ + +static int +gsm610_wav_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) +{ int k ; + + pgsm610->blockcount ++ ; + pgsm610->samplecount = 0 ; + + if (pgsm610->blockcount > pgsm610->blocks) + { memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ; + return 1 ; + } ; + + if ((k = psf_fread (pgsm610->block, 1, WAV_W64_GSM610_BLOCKSIZE, psf)) != WAV_W64_GSM610_BLOCKSIZE) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, WAV_W64_GSM610_BLOCKSIZE) ; + + if (gsm_decode (pgsm610->gsm_data, pgsm610->block, pgsm610->samples) < 0) + { psf_log_printf (psf, "Error from WAV gsm_decode() on frame : %d\n", pgsm610->blockcount) ; + return 0 ; + } ; + + if (gsm_decode (pgsm610->gsm_data, pgsm610->block + (WAV_W64_GSM610_BLOCKSIZE + 1) / 2, pgsm610->samples + WAV_W64_GSM610_SAMPLES / 2) < 0) + { psf_log_printf (psf, "Error from WAV gsm_decode() on frame : %d.5\n", pgsm610->blockcount) ; + return 0 ; + } ; + + return 1 ; +} /* gsm610_wav_decode_block */ + +static int +gsm610_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) +{ int k ; + + pgsm610->blockcount ++ ; + pgsm610->samplecount = 0 ; + + if (pgsm610->blockcount > pgsm610->blocks) + { memset (pgsm610->samples, 0, GSM610_SAMPLES * sizeof (short)) ; + return 1 ; + } ; + + if ((k = psf_fread (pgsm610->block, 1, GSM610_BLOCKSIZE, psf)) != GSM610_BLOCKSIZE) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, GSM610_BLOCKSIZE) ; + + if (gsm_decode (pgsm610->gsm_data, pgsm610->block, pgsm610->samples) < 0) + { psf_log_printf (psf, "Error from standard gsm_decode() on frame : %d\n", pgsm610->blockcount) ; + return 0 ; + } ; + + return 1 ; +} /* gsm610_decode_block */ + +static int +gsm610_read_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { if (pgsm610->blockcount >= pgsm610->blocks && pgsm610->samplecount >= pgsm610->samplesperblock) + { memset (&(ptr [indx]), 0, (len - indx) * sizeof (short)) ; + return total ; + } ; + + if (pgsm610->samplecount >= pgsm610->samplesperblock) + pgsm610->decode_block (psf, pgsm610) ; + + count = pgsm610->samplesperblock - pgsm610->samplecount ; + count = (len - indx > count) ? count : len - indx ; + + memcpy (&(ptr [indx]), &(pgsm610->samples [pgsm610->samplecount]), count * sizeof (short)) ; + indx += count ; + pgsm610->samplecount += count ; + total = indx ; + } ; + + return total ; +} /* gsm610_read_block */ + +static sf_count_t +gsm610_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + int readcount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x1000000 : (int) len ; + + count = gsm610_read_block (psf, pgsm610, ptr, readcount) ; + + total += count ; + len -= count ; + + if (count != readcount) + break ; + } ; + + return total ; +} /* gsm610_read_s */ + +static sf_count_t +gsm610_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = gsm610_read_block (psf, pgsm610, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = sptr [k] << 16 ; + + total += count ; + len -= readcount ; + } ; + return total ; +} /* gsm610_read_i */ + +static sf_count_t +gsm610_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = gsm610_read_block (psf, pgsm610, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * sptr [k] ; + + total += count ; + len -= readcount ; + } ; + return total ; +} /* gsm610_read_f */ + +static sf_count_t +gsm610_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = gsm610_read_block (psf, pgsm610, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * sptr [k] ; + + total += count ; + len -= readcount ; + } ; + return total ; +} /* gsm610_read_d */ + +static sf_count_t +gsm610_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset) +{ GSM610_PRIVATE *pgsm610 ; + int newblock, newsample ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + if (psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (offset == 0) + { int true_flag = 1 ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + pgsm610->blockcount = 0 ; + + gsm_init (pgsm610->gsm_data) ; + if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAV || + (SF_CONTAINER (psf->sf.format)) == SF_FORMAT_W64) + gsm_option (pgsm610->gsm_data, GSM_OPT_WAV49, &true_flag) ; + + pgsm610->decode_block (psf, pgsm610) ; + pgsm610->samplecount = 0 ; + return 0 ; + } ; + + if (offset < 0 || offset > pgsm610->blocks * pgsm610->samplesperblock) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + newblock = offset / pgsm610->samplesperblock ; + newsample = offset % pgsm610->samplesperblock ; + + if (psf->file.mode == SFM_READ) + { if (psf->read_current != newblock * pgsm610->samplesperblock + newsample) + { psf_fseek (psf, psf->dataoffset + newblock * pgsm610->samplesperblock, SEEK_SET) ; + pgsm610->blockcount = newblock ; + pgsm610->decode_block (psf, pgsm610) ; + pgsm610->samplecount = newsample ; + } ; + + return newblock * pgsm610->samplesperblock + newsample ; + } ; + + /* What to do about write??? */ + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; +} /* gsm610_seek */ + +/*========================================================================================== +** GSM 6.10 Write Functions. +*/ + +static int +gsm610_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) +{ int k ; + + /* Encode the samples. */ + gsm_encode (pgsm610->gsm_data, pgsm610->samples, pgsm610->block) ; + + /* Write the block to disk. */ + if ((k = psf_fwrite (pgsm610->block, 1, GSM610_BLOCKSIZE, psf)) != GSM610_BLOCKSIZE) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, GSM610_BLOCKSIZE) ; + + pgsm610->samplecount = 0 ; + pgsm610->blockcount ++ ; + + /* Set samples to zero for next block. */ + memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ; + + return 1 ; +} /* gsm610_encode_block */ + +static int +gsm610_wav_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) +{ int k ; + + /* Encode the samples. */ + gsm_encode (pgsm610->gsm_data, pgsm610->samples, pgsm610->block) ; + gsm_encode (pgsm610->gsm_data, pgsm610->samples+WAV_W64_GSM610_SAMPLES/2, pgsm610->block+WAV_W64_GSM610_BLOCKSIZE/2) ; + + /* Write the block to disk. */ + if ((k = psf_fwrite (pgsm610->block, 1, WAV_W64_GSM610_BLOCKSIZE, psf)) != WAV_W64_GSM610_BLOCKSIZE) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, WAV_W64_GSM610_BLOCKSIZE) ; + + pgsm610->samplecount = 0 ; + pgsm610->blockcount ++ ; + + /* Set samples to zero for next block. */ + memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ; + + return 1 ; +} /* gsm610_wav_encode_block */ + +static int +gsm610_write_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, const short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { count = pgsm610->samplesperblock - pgsm610->samplecount ; + + if (count > len - indx) + count = len - indx ; + + memcpy (&(pgsm610->samples [pgsm610->samplecount]), &(ptr [indx]), count * sizeof (short)) ; + indx += count ; + pgsm610->samplecount += count ; + total = indx ; + + if (pgsm610->samplecount >= pgsm610->samplesperblock) + pgsm610->encode_block (psf, pgsm610) ; + } ; + + return total ; +} /* gsm610_write_block */ + +static sf_count_t +gsm610_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + int writecount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + while (len > 0) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = gsm610_write_block (psf, pgsm610, ptr, writecount) ; + + total += count ; + len -= count ; + + if (count != writecount) + break ; + } ; + + return total ; +} /* gsm610_write_s */ + +static sf_count_t +gsm610_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = ptr [total + k] >> 16 ; + count = gsm610_write_block (psf, pgsm610, sptr, writecount) ; + + total += count ; + len -= writecount ; + } ; + return total ; +} /* gsm610_write_i */ + +static sf_count_t +gsm610_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrintf (normfact * ptr [total + k]) ; + count = gsm610_write_block (psf, pgsm610, sptr, writecount) ; + + total += count ; + len -= writecount ; + } ; + return total ; +} /* gsm610_write_f */ + +static sf_count_t +gsm610_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ GSM610_PRIVATE *pgsm610 ; + short *sptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrint (normfact * ptr [total + k]) ; + count = gsm610_write_block (psf, pgsm610, sptr, writecount) ; + + total += count ; + len -= writecount ; + } ; + return total ; +} /* gsm610_write_d */ + +static int +gsm610_close (SF_PRIVATE *psf) +{ GSM610_PRIVATE *pgsm610 ; + + if (psf->codec_data == NULL) + return 0 ; + + pgsm610 = (GSM610_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE) + { /* If a block has been partially assembled, write it out + ** as the final block. + */ + + if (pgsm610->samplecount && pgsm610->samplecount < pgsm610->samplesperblock) + pgsm610->encode_block (psf, pgsm610) ; + } ; + + if (pgsm610->gsm_data) + gsm_destroy (pgsm610->gsm_data) ; + + return 0 ; +} /* gsm610_close */ + diff --git a/src/htk.c b/src/htk.c new file mode 100644 index 0000000..25390f1 --- /dev/null +++ b/src/htk.c @@ -0,0 +1,226 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define SFE_HTK_BAD_FILE_LEN 1666 +#define SFE_HTK_NOT_WAVEFORM 1667 + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int htk_close (SF_PRIVATE *psf) ; + +static int htk_write_header (SF_PRIVATE *psf, int calc_length) ; +static int htk_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +htk_open (SF_PRIVATE *psf) +{ int subformat ; + int error = 0 ; + + if (psf->is_pipe) + return SFE_HTK_NO_PIPE ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = htk_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_HTK) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_BIG ; + + if (htk_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = htk_write_header ; + } ; + + psf->container_close = htk_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ + error = pcm_init (psf) ; + break ; + + default : break ; + } ; + + return error ; +} /* htk_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +htk_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + htk_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* htk_close */ + +static int +htk_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int sample_count, sample_period ; + + current = psf_ftell (psf) ; + + if (calc_length) + psf->filelength = psf_get_filelen (psf) ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + if (psf->filelength > 12) + sample_count = (psf->filelength - 12) / 2 ; + else + sample_count = 0 ; + + sample_period = 10000000 / psf->sf.samplerate ; + + psf_binheader_writef (psf, "E444", sample_count, sample_period, 0x20000) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* htk_write_header */ + +/* +** Found the following info in a comment block within Bill Schottstaedt's +** sndlib library. +** +** HTK format files consist of a contiguous sequence of samples preceded by a +** header. Each sample is a vector of either 2-byte integers or 4-byte floats. +** 2-byte integers are used for compressed forms as described below and for +** vector quantised data as described later in section 5.11. HTK format data +** files can also be used to store speech waveforms as described in section 5.8. +** +** The HTK file format header is 12 bytes long and contains the following data +** nSamples -- number of samples in file (4-byte integer) +** sampPeriod -- sample period in 100ns units (4-byte integer) +** sampSize -- number of bytes per sample (2-byte integer) +** parmKind -- a code indicating the sample kind (2-byte integer) +** +** The parameter kind consists of a 6 bit code representing the basic +** parameter kind plus additional bits for each of the possible qualifiers. +** The basic parameter kind codes are +** +** 0 WAVEFORM sampled waveform +** 1 LPC linear prediction filter coefficients +** 2 LPREFC linear prediction reflection coefficients +** 3 LPCEPSTRA LPC cepstral coefficients +** 4 LPDELCEP LPC cepstra plus delta coefficients +** 5 IREFC LPC reflection coef in 16 bit integer format +** 6 MFCC mel-frequency cepstral coefficients +** 7 FBANK log mel-filter bank channel outputs +** 8 MELSPEC linear mel-filter bank channel outputs +** 9 USER user defined sample kind +** 10 DISCRETE vector quantised data +** +** and the bit-encoding for the qualifiers (in octal) is +** _E 000100 has energy +** _N 000200 absolute energy suppressed +** _D 000400 has delta coefficients +** _A 001000 has acceleration coefficients +** _C 002000 is compressed +** _Z 004000 has zero mean static coef. +** _K 010000 has CRC checksum +** _O 020000 has 0'th cepstral coef. +*/ + +static int +htk_read_header (SF_PRIVATE *psf) +{ int sample_count, sample_period, marker ; + + psf_binheader_readf (psf, "pE444", 0, &sample_count, &sample_period, &marker) ; + + if (2 * sample_count + 12 != psf->filelength) + return SFE_HTK_BAD_FILE_LEN ; + + if (marker != 0x20000) + return SFE_HTK_NOT_WAVEFORM ; + + psf->sf.channels = 1 ; + + if (sample_period > 0) + { psf->sf.samplerate = 10000000 / sample_period ; + psf_log_printf (psf, "HTK Waveform file\n Sample Count : %d\n Sample Period : %d => %d Hz\n", + sample_count, sample_period, psf->sf.samplerate) ; + } + else + { psf->sf.samplerate = 16000 ; + psf_log_printf (psf, "HTK Waveform file\n Sample Count : %d\n Sample Period : %d (should be > 0) => Guessed sample rate %d Hz\n", + sample_count, sample_period, psf->sf.samplerate) ; + } ; + + psf->sf.format = SF_FORMAT_HTK | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + + /* HTK always has a 12 byte header. */ + psf->dataoffset = 12 ; + psf->endian = SF_ENDIAN_BIG ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if (! psf->sf.frames && psf->blockwidth) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + return 0 ; +} /* htk_read_header */ + diff --git a/src/id3.c b/src/id3.c new file mode 100644 index 0000000..a1a189e --- /dev/null +++ b/src/id3.c @@ -0,0 +1,52 @@ +/* +** Copyright (C) 2010-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +int +id3_skip (SF_PRIVATE * psf) +{ unsigned char buf [10] ; + + memset (buf, 0, sizeof (buf)) ; + psf_binheader_readf (psf, "pb", 0, buf, 10) ; + + if (buf [0] == 'I' && buf [1] == 'D' && buf [2] == '3') + { int offset = buf [6] & 0x7f ; + offset = (offset << 7) | (buf [7] & 0x7f) ; + offset = (offset << 7) | (buf [8] & 0x7f) ; + offset = (offset << 7) | (buf [9] & 0x7f) ; + + psf_binheader_readf (psf, "j", make_size_t (offset)) ; + + psf_log_printf (psf, "ID3 length : %d\n--------------------\n", offset) ; + + psf->fileoffset = 10 + offset ; + return 1 ; + } ; + + return 0 ; +} /* id3_skip */ diff --git a/src/ima_adpcm.c b/src/ima_adpcm.c new file mode 100644 index 0000000..b0763ea --- /dev/null +++ b/src/ima_adpcm.c @@ -0,0 +1,946 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +typedef struct IMA_ADPCM_PRIVATE_tag +{ int (*decode_block) (SF_PRIVATE *psf, struct IMA_ADPCM_PRIVATE_tag *pima) ; + int (*encode_block) (SF_PRIVATE *psf, struct IMA_ADPCM_PRIVATE_tag *pima) ; + + int channels, blocksize, samplesperblock, blocks ; + int blockcount, samplecount ; + int previous [2] ; + int stepindx [2] ; + unsigned char *block ; + short *samples ; +#if HAVE_FLEXIBLE_ARRAY + short data [] ; /* ISO C99 struct flexible array. */ +#else + short data [0] ; /* This is a hack and might not work. */ +#endif +} IMA_ADPCM_PRIVATE ; + +/*============================================================================================ +** Predefined IMA ADPCM data. +*/ + +static int ima_indx_adjust [16] = +{ -1, -1, -1, -1, /* +0 - +3, decrease the step size */ + 2, 4, 6, 8, /* +4 - +7, increase the step size */ + -1, -1, -1, -1, /* -0 - -3, decrease the step size */ + 2, 4, 6, 8, /* -4 - -7, increase the step size */ +} ; + +static int ima_step_size [89] = +{ 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, + 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209, 230, + 253, 279, 307, 337, 371, 408, 449, 494, 544, 598, 658, 724, 796, 876, 963, + 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327, + 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493, 10442, + 11487, 12635, 13899, 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, + 32767 +} ; + +static int ima_reader_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ; +static int ima_writer_init (SF_PRIVATE *psf, int blockalign) ; + +static int ima_read_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima, short *ptr, int len) ; +static int ima_write_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima, const short *ptr, int len) ; + +static sf_count_t ima_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t ima_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t ima_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t ima_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t ima_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t ima_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t ima_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t ima_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t ima_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +static int ima_close (SF_PRIVATE *psf) ; + +static int wav_w64_ima_decode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) ; +static int wav_w64_ima_encode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) ; + +/*-static int aiff_ima_reader_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) ;-*/ +static int aiff_ima_decode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) ; +static int aiff_ima_encode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) ; + + +static inline int +clamp_ima_step_index (int indx) +{ if (indx < 0) + return 0 ; + if (indx >= ARRAY_LEN (ima_step_size)) + return ARRAY_LEN (ima_step_size) - 1 ; + + return indx ; +} /* clamp_ima_step_index */ + +/*============================================================================================ +** IMA ADPCM Reader initialisation function. +*/ + +int +wav_w64_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) +{ int error ; + + if (psf->codec_data != NULL) + { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + if ((error = ima_reader_init (psf, blockalign, samplesperblock))) + return error ; + + if (psf->file.mode == SFM_WRITE) + if ((error = ima_writer_init (psf, blockalign))) + return error ; + + psf->codec_close = ima_close ; + psf->seek = ima_seek ; + + return 0 ; +} /* wav_w64_ima_init */ + +int +aiff_ima_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) +{ int error ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + if ((error = ima_reader_init (psf, blockalign, samplesperblock))) + return error ; + + if (psf->file.mode == SFM_WRITE) + if ((error = ima_writer_init (psf, blockalign))) + return error ; + + psf->codec_close = ima_close ; + + return 0 ; +} /* aiff_ima_init */ + +static int +ima_close (SF_PRIVATE *psf) +{ IMA_ADPCM_PRIVATE *pima ; + + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE) + { /* If a block has been partially assembled, write it out + ** as the final block. + */ + if (pima->samplecount && pima->samplecount < pima->samplesperblock) + pima->encode_block (psf, pima) ; + + psf->sf.frames = pima->samplesperblock * pima->blockcount / psf->sf.channels ; + } ; + + return 0 ; +} /* ima_close */ + +/*============================================================================================ +** IMA ADPCM Read Functions. +*/ + +static int +ima_reader_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) +{ IMA_ADPCM_PRIVATE *pima ; + int pimasize, count ; + + if (psf->file.mode != SFM_READ) + return SFE_BAD_MODE_RW ; + + pimasize = sizeof (IMA_ADPCM_PRIVATE) + blockalign * psf->sf.channels + 3 * psf->sf.channels * samplesperblock ; + + if (! (pima = calloc (1, pimasize))) + return SFE_MALLOC_FAILED ; + + psf->codec_data = (void*) pima ; + + pima->samples = pima->data ; + pima->block = (unsigned char*) (pima->data + samplesperblock * psf->sf.channels) ; + + pima->channels = psf->sf.channels ; + pima->blocksize = blockalign ; + pima->samplesperblock = samplesperblock ; + + psf->filelength = psf_get_filelen (psf) ; + psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + + if (pima->blocksize == 0) + { psf_log_printf (psf, "*** Error : pima->blocksize should not be zero.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->datalength % pima->blocksize) + pima->blocks = psf->datalength / pima->blocksize + 1 ; + else + pima->blocks = psf->datalength / pima->blocksize ; + + switch (SF_CONTAINER (psf->sf.format)) + { case SF_FORMAT_WAV : + case SF_FORMAT_W64 : + count = 2 * (pima->blocksize - 4 * pima->channels) / pima->channels + 1 ; + + if (pima->samplesperblock != count) + { psf_log_printf (psf, "*** Error : samplesperblock should be %d.\n", count) ; + return SFE_INTERNAL ; + } ; + + pima->decode_block = wav_w64_ima_decode_block ; + + psf->sf.frames = pima->samplesperblock * pima->blocks ; + break ; + + case SF_FORMAT_AIFF : + psf_log_printf (psf, "still need to check block count\n") ; + pima->decode_block = aiff_ima_decode_block ; + psf->sf.frames = pima->samplesperblock * pima->blocks / pima->channels ; + break ; + + default : + psf_log_printf (psf, "ima_reader_init: bad psf->sf.format\n") ; + return SFE_INTERNAL ; + } ; + + pima->decode_block (psf, pima) ; /* Read first block. */ + + psf->read_short = ima_read_s ; + psf->read_int = ima_read_i ; + psf->read_float = ima_read_f ; + psf->read_double = ima_read_d ; + + return 0 ; +} /* ima_reader_init */ + +static int +aiff_ima_decode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) +{ unsigned char *blockdata ; + int chan, k, diff, bytecode, predictor ; + short step, stepindx, *sampledata ; + +static int count = 0 ; +count ++ ; + + pima->blockcount += pima->channels ; + pima->samplecount = 0 ; + + if (pima->blockcount > pima->blocks) + { memset (pima->samples, 0, pima->samplesperblock * pima->channels * sizeof (short)) ; + return 1 ; + } ; + + if ((k = psf_fread (pima->block, 1, pima->blocksize * pima->channels, psf)) != pima->blocksize * pima->channels) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pima->blocksize) ; + + /* Read and check the block header. */ + for (chan = 0 ; chan < pima->channels ; chan++) + { blockdata = pima->block + chan * 34 ; + sampledata = pima->samples + chan ; + + predictor = (blockdata [0] << 8) | (blockdata [1] & 0x80) ; + + stepindx = blockdata [1] & 0x7F ; + stepindx = clamp_ima_step_index (stepindx) ; + + /* + ** Pull apart the packed 4 bit samples and store them in their + ** correct sample positions. + */ + for (k = 0 ; k < pima->blocksize - 2 ; k++) + { bytecode = blockdata [k + 2] ; + sampledata [pima->channels * (2 * k + 0)] = bytecode & 0xF ; + sampledata [pima->channels * (2 * k + 1)] = (bytecode >> 4) & 0xF ; + } ; + + /* Decode the encoded 4 bit samples. */ + for (k = 0 ; k < pima->samplesperblock ; k ++) + { step = ima_step_size [stepindx] ; + + bytecode = pima->samples [pima->channels * k + chan] ; + + stepindx += ima_indx_adjust [bytecode] ; + stepindx = clamp_ima_step_index (stepindx) ; + + diff = step >> 3 ; + if (bytecode & 1) diff += step >> 2 ; + if (bytecode & 2) diff += step >> 1 ; + if (bytecode & 4) diff += step ; + if (bytecode & 8) diff = -diff ; + + predictor += diff ; + if (predictor < -32768) + predictor = -32768 ; + else if (predictor > 32767) + predictor = 32767 ; + + pima->samples [pima->channels * k + chan] = predictor ; + } ; + } ; + + return 1 ; +} /* aiff_ima_decode_block */ + +static int +aiff_ima_encode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) +{ int chan, k, step, diff, vpdiff, blockindx, indx ; + short bytecode, mask ; + + /* Encode the block header. */ + for (chan = 0 ; chan < pima->channels ; chan ++) + { blockindx = chan * pima->blocksize ; + + pima->block [blockindx] = (pima->samples [chan] >> 8) & 0xFF ; + pima->block [blockindx + 1] = (pima->samples [chan] & 0x80) + (pima->stepindx [chan] & 0x7F) ; + + pima->previous [chan] = pima->samples [chan] ; + } ; + + /* Encode second and later samples for every block as a 4 bit value. */ + for (k = pima->channels ; k < (pima->samplesperblock * pima->channels) ; k ++) + { chan = (pima->channels > 1) ? (k % 2) : 0 ; + + diff = pima->samples [k] - pima->previous [chan] ; + + bytecode = 0 ; + step = ima_step_size [pima->stepindx [chan]] ; + vpdiff = step >> 3 ; + if (diff < 0) + { bytecode = 8 ; + diff = -diff ; + } ; + mask = 4 ; + while (mask) + { if (diff >= step) + { bytecode |= mask ; + diff -= step ; + vpdiff += step ; + } ; + step >>= 1 ; + mask >>= 1 ; + } ; + + if (bytecode & 8) + pima->previous [chan] -= vpdiff ; + else + pima->previous [chan] += vpdiff ; + + if (pima->previous [chan] > 32767) + pima->previous [chan] = 32767 ; + else if (pima->previous [chan] < -32768) + pima->previous [chan] = -32768 ; + + pima->stepindx [chan] += ima_indx_adjust [bytecode] ; + + pima->stepindx [chan] = clamp_ima_step_index (pima->stepindx [chan]) ; + pima->samples [k] = bytecode ; + } ; + + /* Pack the 4 bit encoded samples. */ + + for (chan = 0 ; chan < pima->channels ; chan ++) + { for (indx = pima->channels ; indx < pima->channels * pima->samplesperblock ; indx += 2 * pima->channels) + { blockindx = chan * pima->blocksize + 2 + indx / 2 ; + + pima->block [blockindx] = pima->samples [indx] & 0x0F ; + pima->block [blockindx] |= (pima->samples [indx + chan] << 4) & 0xF0 ; + } ; + } ; + + /* Write the block to disk. */ + + if ((k = psf_fwrite (pima->block, 1, pima->channels * pima->blocksize, psf)) != pima->channels * pima->blocksize) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pima->channels * pima->blocksize) ; + + memset (pima->samples, 0, pima->channels * pima->samplesperblock * sizeof (short)) ; + pima->samplecount = 0 ; + pima->blockcount ++ ; + + return 1 ; +} /* aiff_ima_encode_block */ + +static int +wav_w64_ima_decode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) +{ int chan, k, predictor, blockindx, indx, indxstart, diff ; + short step, bytecode, stepindx [2] ; + + pima->blockcount ++ ; + pima->samplecount = 0 ; + + if (pima->blockcount > pima->blocks) + { memset (pima->samples, 0, pima->samplesperblock * pima->channels * sizeof (short)) ; + return 1 ; + } ; + + if ((k = psf_fread (pima->block, 1, pima->blocksize, psf)) != pima->blocksize) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pima->blocksize) ; + + /* Read and check the block header. */ + + for (chan = 0 ; chan < pima->channels ; chan++) + { predictor = pima->block [chan*4] | (pima->block [chan*4+1] << 8) ; + if (predictor & 0x8000) + predictor -= 0x10000 ; + + stepindx [chan] = pima->block [chan*4+2] ; + stepindx [chan] = clamp_ima_step_index (stepindx [chan]) ; + + + if (pima->block [chan*4+3] != 0) + psf_log_printf (psf, "IMA ADPCM synchronisation error.\n") ; + + pima->samples [chan] = predictor ; + } ; + + /* + ** Pull apart the packed 4 bit samples and store them in their + ** correct sample positions. + */ + + blockindx = 4 * pima->channels ; + + indxstart = pima->channels ; + while (blockindx < pima->blocksize) + { for (chan = 0 ; chan < pima->channels ; chan++) + { indx = indxstart + chan ; + for (k = 0 ; k < 4 ; k++) + { bytecode = pima->block [blockindx++] ; + pima->samples [indx] = bytecode & 0x0F ; + indx += pima->channels ; + pima->samples [indx] = (bytecode >> 4) & 0x0F ; + indx += pima->channels ; + } ; + } ; + indxstart += 8 * pima->channels ; + } ; + + /* Decode the encoded 4 bit samples. */ + + for (k = pima->channels ; k < (pima->samplesperblock * pima->channels) ; k ++) + { chan = (pima->channels > 1) ? (k % 2) : 0 ; + + bytecode = pima->samples [k] & 0xF ; + + step = ima_step_size [stepindx [chan]] ; + predictor = pima->samples [k - pima->channels] ; + + diff = step >> 3 ; + if (bytecode & 1) + diff += step >> 2 ; + if (bytecode & 2) + diff += step >> 1 ; + if (bytecode & 4) + diff += step ; + if (bytecode & 8) + diff = -diff ; + + predictor += diff ; + + if (predictor > 32767) + predictor = 32767 ; + else if (predictor < -32768) + predictor = -32768 ; + + stepindx [chan] += ima_indx_adjust [bytecode] ; + stepindx [chan] = clamp_ima_step_index (stepindx [chan]) ; + + pima->samples [k] = predictor ; + } ; + + return 1 ; +} /* wav_w64_ima_decode_block */ + +static int +wav_w64_ima_encode_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima) +{ int chan, k, step, diff, vpdiff, blockindx, indx, indxstart ; + short bytecode, mask ; + + /* Encode the block header. */ + for (chan = 0 ; chan < pima->channels ; chan++) + { pima->block [chan*4] = pima->samples [chan] & 0xFF ; + pima->block [chan*4+1] = (pima->samples [chan] >> 8) & 0xFF ; + + pima->block [chan*4+2] = pima->stepindx [chan] ; + pima->block [chan*4+3] = 0 ; + + pima->previous [chan] = pima->samples [chan] ; + } ; + + /* Encode the samples as 4 bit. */ + + for (k = pima->channels ; k < (pima->samplesperblock * pima->channels) ; k ++) + { chan = (pima->channels > 1) ? (k % 2) : 0 ; + + diff = pima->samples [k] - pima->previous [chan] ; + + bytecode = 0 ; + step = ima_step_size [pima->stepindx [chan]] ; + vpdiff = step >> 3 ; + if (diff < 0) + { bytecode = 8 ; + diff = -diff ; + } ; + mask = 4 ; + while (mask) + { if (diff >= step) + { bytecode |= mask ; + diff -= step ; + vpdiff += step ; + } ; + step >>= 1 ; + mask >>= 1 ; + } ; + + if (bytecode & 8) + pima->previous [chan] -= vpdiff ; + else + pima->previous [chan] += vpdiff ; + + if (pima->previous [chan] > 32767) + pima->previous [chan] = 32767 ; + else if (pima->previous [chan] < -32768) + pima->previous [chan] = -32768 ; + + pima->stepindx [chan] += ima_indx_adjust [bytecode] ; + pima->stepindx [chan] = clamp_ima_step_index (pima->stepindx [chan]) ; + + pima->samples [k] = bytecode ; + } ; + + /* Pack the 4 bit encoded samples. */ + + blockindx = 4 * pima->channels ; + + indxstart = pima->channels ; + while (blockindx < pima->blocksize) + { for (chan = 0 ; chan < pima->channels ; chan++) + { indx = indxstart + chan ; + for (k = 0 ; k < 4 ; k++) + { pima->block [blockindx] = pima->samples [indx] & 0x0F ; + indx += pima->channels ; + pima->block [blockindx] |= (pima->samples [indx] << 4) & 0xF0 ; + indx += pima->channels ; + blockindx ++ ; + } ; + } ; + indxstart += 8 * pima->channels ; + } ; + + /* Write the block to disk. */ + + if ((k = psf_fwrite (pima->block, 1, pima->blocksize, psf)) != pima->blocksize) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pima->blocksize) ; + + memset (pima->samples, 0, pima->samplesperblock * sizeof (short)) ; + pima->samplecount = 0 ; + pima->blockcount ++ ; + + return 1 ; +} /* wav_w64_ima_encode_block */ + +static int +ima_read_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima, short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { if (pima->blockcount >= pima->blocks && pima->samplecount >= pima->samplesperblock) + { memset (&(ptr [indx]), 0, (size_t) ((len - indx) * sizeof (short))) ; + return total ; + } ; + + if (pima->samplecount >= pima->samplesperblock) + pima->decode_block (psf, pima) ; + + count = (pima->samplesperblock - pima->samplecount) * pima->channels ; + count = (len - indx > count) ? count : len - indx ; + + memcpy (&(ptr [indx]), &(pima->samples [pima->samplecount * pima->channels]), count * sizeof (short)) ; + indx += count ; + pima->samplecount += count / pima->channels ; + total = indx ; + } ; + + return total ; +} /* ima_read_block */ + +static sf_count_t +ima_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + int readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = ima_read_block (psf, pima, ptr, readcount) ; + + total += count ; + len -= count ; + if (count != readcount) + break ; + } ; + + return total ; +} /* ima_read_s */ + +static sf_count_t +ima_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = ima_read_block (psf, pima, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = ((int) sptr [k]) << 16 ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* ima_read_i */ + +static sf_count_t +ima_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = ima_read_block (psf, pima, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (float) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* ima_read_f */ + +static sf_count_t +ima_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = ima_read_block (psf, pima, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (double) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* ima_read_d */ + +static sf_count_t +ima_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) +{ IMA_ADPCM_PRIVATE *pima ; + int newblock, newsample ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + if (psf->datalength < 0 || psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (offset == 0) + { psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + pima->blockcount = 0 ; + pima->decode_block (psf, pima) ; + pima->samplecount = 0 ; + return 0 ; + } ; + + if (offset < 0 || offset > pima->blocks * pima->samplesperblock) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + newblock = offset / pima->samplesperblock ; + newsample = offset % pima->samplesperblock ; + + if (mode == SFM_READ) + { psf_fseek (psf, psf->dataoffset + newblock * pima->blocksize, SEEK_SET) ; + pima->blockcount = newblock ; + pima->decode_block (psf, pima) ; + pima->samplecount = newsample ; + } + else + { /* What to do about write??? */ + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + return newblock * pima->samplesperblock + newsample ; +} /* ima_seek */ + +/*========================================================================================== +** IMA ADPCM Write Functions. +*/ + +static int +ima_writer_init (SF_PRIVATE *psf, int blockalign) +{ IMA_ADPCM_PRIVATE *pima ; + int samplesperblock ; + unsigned int pimasize ; + + if (psf->file.mode != SFM_WRITE) + return SFE_BAD_MODE_RW ; + + samplesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ; + + pimasize = sizeof (IMA_ADPCM_PRIVATE) + blockalign + 3 * psf->sf.channels * samplesperblock ; + + if ((pima = calloc (1, pimasize)) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = (void*) pima ; + + pima->channels = psf->sf.channels ; + pima->blocksize = blockalign ; + pima->samplesperblock = samplesperblock ; + + pima->block = (unsigned char*) pima->data ; + pima->samples = (short*) (pima->data + blockalign) ; + + pima->samplecount = 0 ; + + switch (SF_CONTAINER (psf->sf.format)) + { case SF_FORMAT_WAV : + case SF_FORMAT_W64 : + pima->encode_block = wav_w64_ima_encode_block ; + break ; + + case SF_FORMAT_AIFF : + pima->encode_block = aiff_ima_encode_block ; + break ; + + default : + psf_log_printf (psf, "ima_reader_init: bad psf->sf.format\n") ; + return SFE_INTERNAL ; + } ; + + psf->write_short = ima_write_s ; + psf->write_int = ima_write_i ; + psf->write_float = ima_write_f ; + psf->write_double = ima_write_d ; + + return 0 ; +} /* ima_writer_init */ + +/*========================================================================================== +*/ + +static int +ima_write_block (SF_PRIVATE *psf, IMA_ADPCM_PRIVATE *pima, const short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { count = (pima->samplesperblock - pima->samplecount) * pima->channels ; + + if (count > len - indx) + count = len - indx ; + + memcpy (&(pima->samples [pima->samplecount * pima->channels]), &(ptr [total]), count * sizeof (short)) ; + indx += count ; + pima->samplecount += count / pima->channels ; + total = indx ; + + if (pima->samplecount >= pima->samplesperblock) + pima->encode_block (psf, pima) ; + } ; + + return total ; +} /* ima_write_block */ + +static sf_count_t +ima_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + int writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + while (len) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = ima_write_block (psf, pima, ptr, writecount) ; + + total += count ; + len -= count ; + if (count != writecount) + break ; + } ; + + return total ; +} /* ima_write_s */ + +static sf_count_t +ima_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = ptr [total + k] >> 16 ; + count = ima_write_block (psf, pima, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* ima_write_i */ + +static sf_count_t +ima_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrintf (normfact * ptr [total + k]) ; + count = ima_write_block (psf, pima, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* ima_write_f */ + +static sf_count_t +ima_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ IMA_ADPCM_PRIVATE *pima ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pima = (IMA_ADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrint (normfact * ptr [total + k]) ; + count = ima_write_block (psf, pima, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* ima_write_d */ + diff --git a/src/ima_oki_adpcm.c b/src/ima_oki_adpcm.c new file mode 100644 index 0000000..399d2e4 --- /dev/null +++ b/src/ima_oki_adpcm.c @@ -0,0 +1,297 @@ +/* +** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (c) 2007 <robs@users.sourceforge.net> +** +** This library is free software; you can redistribute it and/or modify it +** under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2 of the License, or (at +** your option) any later version. +** +** This library is distributed in the hope that it will be useful, but +** WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser +** General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this library. If not, write to the Free Software Foundation, +** Fifth Floor, 51 Franklin Street, Boston, MA 02111-1301, USA. +*/ + +/* ADPCM: IMA, OKI <==> 16-bit PCM. */ + +#include "sfconfig.h" + +#include <string.h> + +/* Set up for libsndfile environment: */ +#include "common.h" + +#include "ima_oki_adpcm.h" + +#define MIN_SAMPLE -0x8000 +#define MAX_SAMPLE 0x7fff + +static int const ima_steps [] = /* ~16-bit precision */ +{ 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, + 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209, 230, + 253, 279, 307, 337, 371, 408, 449, 494, 544, 598, 658, 724, 796, 876, 963, + 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327, + 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493, 10442, + 11487, 12635, 13899, 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, + 32767 +} ; + +static int const oki_steps [] = /* ~12-bit precision */ +{ 256, 272, 304, 336, 368, 400, 448, 496, 544, 592, 656, 720, 800, 880, 960, + 1056, 1168, 1280, 1408, 1552, 1712, 1888, 2080, 2288, 2512, 2768, 3040, 3344, + 3680, 4048, 4464, 4912, 5392, 5936, 6528, 7184, 7904, 8704, 9568, 10528, + 11584, 12736, 14016, 15408, 16960, 18656, 20512, 22576, 24832 +} ; + +static int const step_changes [] = { -1, -1, -1, -1, 2, 4, 6, 8 } ; + +void +ima_oki_adpcm_init (IMA_OKI_ADPCM * state, IMA_OKI_ADPCM_TYPE type) +{ + memset (state, 0, sizeof (*state)) ; + + if (type == IMA_OKI_ADPCM_TYPE_IMA) + { state->max_step_index = ARRAY_LEN (ima_steps) - 1 ; + state->steps = ima_steps ; + state->mask = (~0) ; + } + else + { state->max_step_index = ARRAY_LEN (oki_steps) - 1 ; + state->steps = oki_steps ; + state->mask = (~0) << 4 ; + } ; + +} /* ima_oki_adpcm_init */ + + +int +adpcm_decode (IMA_OKI_ADPCM * state, int code) +{ int s ; + + s = ((code & 7) << 1) | 1 ; + s = ((state->steps [state->step_index] * s) >> 3) & state->mask ; + + if (code & 8) + s = -s ; + s += state->last_output ; + + if (s < MIN_SAMPLE || s > MAX_SAMPLE) + { int grace ; + + grace = (state->steps [state->step_index] >> 3) & state->mask ; + + if (s < MIN_SAMPLE - grace || s > MAX_SAMPLE + grace) + state->errors ++ ; + + s = s < MIN_SAMPLE ? MIN_SAMPLE : MAX_SAMPLE ; + } ; + + state->step_index += step_changes [code & 7] ; + state->step_index = SF_MIN (SF_MAX (state->step_index, 0), state->max_step_index) ; + state->last_output = s ; + + return s ; +} /* adpcm_decode */ + +int +adpcm_encode (IMA_OKI_ADPCM * state, int sample) +{ int delta, sign = 0, code ; + + delta = sample - state->last_output ; + + if (delta < 0) + { sign = 8 ; + delta = -delta ; + } ; + + code = 4 * delta / state->steps [state->step_index] ; + code = sign | SF_MIN (code, 7) ; + adpcm_decode (state, code) ; /* Update encoder state */ + + return code ; +} /* adpcm_encode */ + + +void +ima_oki_adpcm_decode_block (IMA_OKI_ADPCM * state) +{ unsigned char code ; + int k ; + + for (k = 0 ; k < state->code_count ; k++) + { code = state->codes [k] ; + state->pcm [2 * k] = adpcm_decode (state, code >> 4) ; + state->pcm [2 * k + 1] = adpcm_decode (state, code) ; + } ; + + state->pcm_count = 2 * k ; +} /* ima_oki_adpcm_decode_block */ + + +void +ima_oki_adpcm_encode_block (IMA_OKI_ADPCM * state) +{ unsigned char code ; + int k ; + + /* + ** The codec expects an even number of input samples. + ** + ** Samples should always be passed in even length blocks. If the last block to + ** be encoded is odd length, extend that block by one zero valued sample. + */ + if (state->pcm_count % 2 == 1) + state->pcm [state->pcm_count ++] = 0 ; + + for (k = 0 ; k < state->pcm_count / 2 ; k++) + { code = adpcm_encode (state, state->pcm [2 * k]) << 4 ; + code |= adpcm_encode (state, state->pcm [2 * k + 1]) ; + state->codes [k] = code ; + } ; + + state->code_count = k ; +} /* ima_oki_adpcm_encode_block */ + + +#ifdef TEST + +static const unsigned char test_codes [] = +{ 0x08, 0x08, 0x04, 0x7f, 0x72, 0xf7, 0x9f, 0x7c, 0xd7, 0xbc, 0x7a, 0xa7, 0xb8, + 0x4b, 0x0b, 0x38, 0xf6, 0x9d, 0x7a, 0xd7, 0xbc, 0x7a, 0xd7, 0xa8, 0x6c, 0x81, + 0x98, 0xe4, 0x0e, 0x7a, 0xd7, 0x9e, 0x7b, 0xc7, 0xab, 0x7a, 0x85, 0xc0, 0xb3, + 0x8f, 0x58, 0xd7, 0xad, 0x7a, 0xd7, 0xad, 0x7a, 0x87, 0xd0, 0x2b, 0x0e, 0x48, + 0xd7, 0xad, 0x78, 0xf7, 0xbc, 0x7a, 0xb7, 0xa8, 0x4b, 0x88, 0x18, 0xd5, 0x8d, + 0x6a, 0xa4, 0x98, 0x08, 0x00, 0x80, 0x88, +} ; + +static const short test_pcm [] = +{ 32, 0, 32, 0, 32, 320, 880, -336, 2304, 4192, -992, 10128, 5360, -16352, + 30208, 2272, -31872, 14688, -7040, -32432, 14128, -1392, -15488, 22960, + 1232, -1584, 21488, -240, 2576, -15360, 960, -1152, -30032, 10320, 1008, + -30032, 16528, 1008, -30032, 16528, -5200, -30592, 15968, 448, -30592, + 15968, 448, -2368, 30960, 3024, -80, 8384, 704, -1616, -29168, -1232, 1872, + -32768, 13792, -1728, -32768, 13792, 4480, -32192, 14368, -7360, -32752, + 13808, -1712, -21456, 16992, 1472, -1344, 26848, -1088, 2016, -17728, 208, + -2112, -32768, 1376, -1728, -32768, 13792, -1728, -32768, 13792, -1728, + -32768, 13792, -1728, -32768, 13792, -1728, -4544, 32767, -1377, 1727, + 15823, -2113, 207, -27345, 591, -2513, -32768, 13792, -1728, -32768, 13792, + 10688, -31632, 14928, -6800, -32192, 14368, -1152, -20896, 17552, 2032, + -784, 22288, 560, -2256, -4816, 2176, 64, -21120, 9920, 6816, -24224, 16128, + 608, -13488, 9584, 272, -2544, 16, -2304, -192, 1728, -16, 1568, 128, -1184, +} ; + + +static void +test_oki_adpcm (void) +{ + IMA_OKI_ADPCM adpcm ; + unsigned char code ; + int i, j ; + + printf (" Testing encoder : ") ; + fflush (stdout) ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + for (i = 0 ; i < ARRAY_LEN (test_codes) ; i++) + for (j = 0, code = test_codes [i] ; j < 2 ; j++, code <<= 4) + if (adpcm_decode (&adpcm, code >> 4) != test_pcm [2 * i + j]) + { printf ("\n\nFail at i = %d, j = %d.\n\n", i, j) ; + exit (1) ; + } ; + + puts ("ok") ; + + printf (" Testing decoder : ") ; + fflush (stdout) ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + for (i = 0 ; i < ARRAY_LEN (test_pcm) ; i += j) + { code = adpcm_encode (&adpcm, test_pcm [i]) ; + code = (code << 4) | adpcm_encode (&adpcm, test_pcm [i + 1]) ; + if (code != test_codes [i / 2]) + { printf ("\n\nFail at i = %d, %d should be %d\n\n", i, code, test_codes [i / 2]) ; + exit (1) ; + } ; + } ; + + puts ("ok") ; +} /* test_oki_adpcm */ + +static void +test_oki_adpcm_block (void) +{ + IMA_OKI_ADPCM adpcm ; + int k ; + + if (ARRAY_LEN (adpcm.pcm) < ARRAY_LEN (test_pcm)) + { printf ("\n\nLine %d : ARRAY_LEN (adpcm->pcm) > ARRAY_LEN (test_pcm) (%d > %d).\n\n", __LINE__, ARRAY_LEN (adpcm.pcm), ARRAY_LEN (test_pcm)) ; + exit (1) ; + } ; + + if (ARRAY_LEN (adpcm.codes) < ARRAY_LEN (test_codes)) + { printf ("\n\nLine %d : ARRAY_LEN (adcodes->codes) > ARRAY_LEN (test_codes).n", __LINE__) ; + exit (1) ; + } ; + + printf (" Testing block encoder : ") ; + fflush (stdout) ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + + memcpy (adpcm.pcm, test_pcm, sizeof (adpcm.pcm [0]) * ARRAY_LEN (test_pcm)) ; + adpcm.pcm_count = ARRAY_LEN (test_pcm) ; + adpcm.code_count = 13 ; + + ima_oki_adpcm_encode_block (&adpcm) ; + + if (adpcm.code_count * 2 != ARRAY_LEN (test_pcm)) + { printf ("\n\nLine %d : %d * 2 != %d\n\n", __LINE__, adpcm.code_count * 2, ARRAY_LEN (test_pcm)) ; + exit (1) ; + } ; + + for (k = 0 ; k < ARRAY_LEN (test_codes) ; k++) + if (adpcm.codes [k] != test_codes [k]) + { printf ("\n\nLine %d : Fail at k = %d, %d should be %d\n\n", __LINE__, k, adpcm.codes [k], test_codes [k]) ; + exit (1) ; + } ; + + puts ("ok") ; + + printf (" Testing block decoder : ") ; + fflush (stdout) ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + + memcpy (adpcm.codes, test_codes, sizeof (adpcm.codes [0]) * ARRAY_LEN (test_codes)) ; + adpcm.code_count = ARRAY_LEN (test_codes) ; + adpcm.pcm_count = 13 ; + + ima_oki_adpcm_decode_block (&adpcm) ; + + if (adpcm.pcm_count != 2 * ARRAY_LEN (test_codes)) + { printf ("\n\nLine %d : %d * 2 != %d\n\n", __LINE__, adpcm.pcm_count, 2 * ARRAY_LEN (test_codes)) ; + exit (1) ; + } ; + + for (k = 0 ; k < ARRAY_LEN (test_pcm) ; k++) + if (adpcm.pcm [k] != test_pcm [k]) + { printf ("\n\nLine %d : Fail at i = %d, %d should be %d.\n\n", __LINE__, k, adpcm.pcm [k], test_pcm [k]) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_oki_adpcm_block */ + +int +main (void) +{ + test_oki_adpcm () ; + test_oki_adpcm_block () ; + + return 0 ; +} /* main */ + +#endif diff --git a/src/ima_oki_adpcm.h b/src/ima_oki_adpcm.h new file mode 100644 index 0000000..86241e7 --- /dev/null +++ b/src/ima_oki_adpcm.h @@ -0,0 +1,54 @@ +/* +** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (c) 2007 <robs@users.sourceforge.net> +** +** This library is free software; you can redistribute it and/or modify it +** under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2 of the License, or (at +** your option) any later version. +** +** This library is distributed in the hope that it will be useful, but +** WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser +** General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this library. If not, write to the Free Software Foundation, +** Fifth Floor, 51 Franklin Street, Boston, MA 02111-1301, USA. +*/ + +/* ADPCM: IMA, OKI <==> 16-bit PCM. */ + + +#define IMA_OKI_ADPCM_CODE_LEN 256 +#define IMA_OKI_ADPCM_PCM_LEN (IMA_OKI_ADPCM_CODE_LEN *2) + +typedef struct +{ + /* private: */ + int mask ; + int last_output ; + int step_index ; + int max_step_index ; + int const * steps ; + + /* public: */ + int errors ; + int code_count, pcm_count ; + + unsigned char codes [IMA_OKI_ADPCM_CODE_LEN] ; + short pcm [IMA_OKI_ADPCM_PCM_LEN] ; +} IMA_OKI_ADPCM ; + +typedef enum +{ IMA_OKI_ADPCM_TYPE_IMA, + IMA_OKI_ADPCM_TYPE_OKI +} IMA_OKI_ADPCM_TYPE ; + +void ima_oki_adpcm_init (IMA_OKI_ADPCM * state, IMA_OKI_ADPCM_TYPE type) ; + +int adpcm_decode (IMA_OKI_ADPCM * state, int /* 0..15 */ code) ; +int adpcm_encode (IMA_OKI_ADPCM * state, int /* -32768..32767 */ sample) ; + +void ima_oki_adpcm_decode_block (IMA_OKI_ADPCM * state) ; +void ima_oki_adpcm_encode_block (IMA_OKI_ADPCM * state) ; diff --git a/src/interleave.c b/src/interleave.c new file mode 100644 index 0000000..ca9d7b4 --- /dev/null +++ b/src/interleave.c @@ -0,0 +1,300 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfendian.h" + +#include <stdlib.h> + +#include "sndfile.h" +#include "common.h" + +#define INTERLEAVE_CHANNELS 6 + +typedef struct +{ double buffer [SF_BUFFER_LEN / sizeof (double)] ; + + sf_count_t channel_len ; + + sf_count_t (*read_short) (SF_PRIVATE*, short *ptr, sf_count_t len) ; + sf_count_t (*read_int) (SF_PRIVATE*, int *ptr, sf_count_t len) ; + sf_count_t (*read_float) (SF_PRIVATE*, float *ptr, sf_count_t len) ; + sf_count_t (*read_double) (SF_PRIVATE*, double *ptr, sf_count_t len) ; + +} INTERLEAVE_DATA ; + + + +static sf_count_t interleave_read_short (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t interleave_read_int (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t interleave_read_float (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t interleave_read_double (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t interleave_seek (SF_PRIVATE*, int mode, sf_count_t samples_from_start) ; + + + + +int +interleave_init (SF_PRIVATE *psf) +{ INTERLEAVE_DATA *pdata ; + + if (psf->file.mode != SFM_READ) + return SFE_INTERLEAVE_MODE ; + + if (psf->interleave) + { psf_log_printf (psf, "*** Weird, already have interleave.\n") ; + return 666 ; + } ; + + /* Free this in sf_close() function. */ + if (! (pdata = malloc (sizeof (INTERLEAVE_DATA)))) + return SFE_MALLOC_FAILED ; + +puts ("interleave_init") ; + + psf->interleave = pdata ; + + /* Save the existing methods. */ + pdata->read_short = psf->read_short ; + pdata->read_int = psf->read_int ; + pdata->read_float = psf->read_float ; + pdata->read_double = psf->read_double ; + + pdata->channel_len = psf->sf.frames * psf->bytewidth ; + + /* Insert our new methods. */ + psf->read_short = interleave_read_short ; + psf->read_int = interleave_read_int ; + psf->read_float = interleave_read_float ; + psf->read_double = interleave_read_double ; + + psf->seek = interleave_seek ; + + return 0 ; +} /* pcm_interleave_init */ + +/*------------------------------------------------------------------------------ +*/ + +static sf_count_t +interleave_read_short (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ INTERLEAVE_DATA *pdata ; + sf_count_t offset, templen ; + int chan, count, k ; + short *inptr, *outptr ; + + if (! (pdata = psf->interleave)) + return 0 ; + + inptr = (short*) pdata->buffer ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { outptr = ptr + chan ; + + offset = psf->dataoffset + chan * psf->bytewidth * psf->read_current ; + + if (psf_fseek (psf, offset, SEEK_SET) != offset) + { psf->error = SFE_INTERLEAVE_SEEK ; + return 0 ; + } ; + + templen = len / psf->sf.channels ; + + while (templen > 0) + { if (templen > SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (short)) + count = SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (short) ; + else + count = (int) templen ; + + if (pdata->read_short (psf, inptr, count) != count) + { psf->error = SFE_INTERLEAVE_READ ; + return 0 ; + } ; + + for (k = 0 ; k < count ; k++) + { *outptr = inptr [k] ; + outptr += psf->sf.channels ; + } ; + + templen -= count ; + } ; + } ; + + return len ; +} /* interleave_read_short */ + +static sf_count_t +interleave_read_int (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ INTERLEAVE_DATA *pdata ; + sf_count_t offset, templen ; + int chan, count, k ; + int *inptr, *outptr ; + + if (! (pdata = psf->interleave)) + return 0 ; + + inptr = (int*) pdata->buffer ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { outptr = ptr + chan ; + + offset = psf->dataoffset + chan * psf->bytewidth * psf->read_current ; + + if (psf_fseek (psf, offset, SEEK_SET) != offset) + { psf->error = SFE_INTERLEAVE_SEEK ; + return 0 ; + } ; + + templen = len / psf->sf.channels ; + + while (templen > 0) + { if (templen > SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (int)) + count = SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (int) ; + else + count = (int) templen ; + + if (pdata->read_int (psf, inptr, count) != count) + { psf->error = SFE_INTERLEAVE_READ ; + return 0 ; + } ; + + for (k = 0 ; k < count ; k++) + { *outptr = inptr [k] ; + outptr += psf->sf.channels ; + } ; + + templen -= count ; + } ; + } ; + + return len ; +} /* interleave_read_int */ + +static sf_count_t +interleave_read_float (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ INTERLEAVE_DATA *pdata ; + sf_count_t offset, templen ; + int chan, count, k ; + float *inptr, *outptr ; + + if (! (pdata = psf->interleave)) + return 0 ; + + inptr = (float*) pdata->buffer ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { outptr = ptr + chan ; + + offset = psf->dataoffset + pdata->channel_len * chan + psf->read_current * psf->bytewidth ; + +/*-printf ("chan : %d read_current : %6lld offset : %6lld\n", chan, psf->read_current, offset) ;-*/ + + if (psf_fseek (psf, offset, SEEK_SET) != offset) + { psf->error = SFE_INTERLEAVE_SEEK ; +/*-puts ("interleave_seek error") ; exit (1) ;-*/ + return 0 ; + } ; + + templen = len / psf->sf.channels ; + + while (templen > 0) + { if (templen > SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (float)) + count = SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (float) ; + else + count = (int) templen ; + + if (pdata->read_float (psf, inptr, count) != count) + { psf->error = SFE_INTERLEAVE_READ ; +/*-puts ("interleave_read error") ; exit (1) ;-*/ + return 0 ; + } ; + + for (k = 0 ; k < count ; k++) + { *outptr = inptr [k] ; + outptr += psf->sf.channels ; + } ; + + templen -= count ; + } ; + } ; + + return len ; +} /* interleave_read_float */ + +static sf_count_t +interleave_read_double (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ INTERLEAVE_DATA *pdata ; + sf_count_t offset, templen ; + int chan, count, k ; + double *inptr, *outptr ; + + if (! (pdata = psf->interleave)) + return 0 ; + + inptr = (double*) pdata->buffer ; + + for (chan = 0 ; chan < psf->sf.channels ; chan++) + { outptr = ptr + chan ; + + offset = psf->dataoffset + chan * psf->bytewidth * psf->read_current ; + + if (psf_fseek (psf, offset, SEEK_SET) != offset) + { psf->error = SFE_INTERLEAVE_SEEK ; + return 0 ; + } ; + + templen = len / psf->sf.channels ; + + while (templen > 0) + { if (templen > SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (double)) + count = SIGNED_SIZEOF (pdata->buffer) / SIGNED_SIZEOF (double) ; + else + count = (int) templen ; + + if (pdata->read_double (psf, inptr, count) != count) + { psf->error = SFE_INTERLEAVE_READ ; + return 0 ; + } ; + + for (k = 0 ; k < count ; k++) + { *outptr = inptr [k] ; + outptr += psf->sf.channels ; + } ; + + templen -= count ; + } ; + } ; + + return len ; +} /* interleave_read_double */ + +/*------------------------------------------------------------------------------ +*/ + +static sf_count_t +interleave_seek (SF_PRIVATE *psf, int mode, sf_count_t samples_from_start) +{ psf = psf ; mode = mode ; + + /* + ** Do nothing here. This is a place holder to prevent the default + ** seek function from being called. + */ + + return samples_from_start ; +} /* interleave_seek */ + diff --git a/src/ircam.c b/src/ircam.c new file mode 100644 index 0000000..4aa1173 --- /dev/null +++ b/src/ircam.c @@ -0,0 +1,322 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +/* The IRCAM magic number is weird in that one byte in the number can have +** values of 0x1, 0x2, 0x03 or 0x04. Hence the need for a marker and a mask. +*/ + +#define IRCAM_BE_MASK (MAKE_MARKER (0xFF, 0xFF, 0x00, 0xFF)) +#define IRCAM_BE_MARKER (MAKE_MARKER (0x64, 0xA3, 0x00, 0x00)) + +#define IRCAM_LE_MASK (MAKE_MARKER (0xFF, 0x00, 0xFF, 0xFF)) +#define IRCAM_LE_MARKER (MAKE_MARKER (0x00, 0x00, 0xA3, 0x64)) + +#define IRCAM_02B_MARKER (MAKE_MARKER (0x64, 0xA3, 0x02, 0x00)) +#define IRCAM_03L_MARKER (MAKE_MARKER (0x64, 0xA3, 0x03, 0x00)) + +#define IRCAM_DATA_OFFSET (1024) + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +enum +{ IRCAM_PCM_16 = 0x00002, + IRCAM_FLOAT = 0x00004, + IRCAM_ALAW = 0x10001, + IRCAM_ULAW = 0x20001, + IRCAM_PCM_32 = 0x40004 +} ; + + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int ircam_close (SF_PRIVATE *psf) ; +static int ircam_write_header (SF_PRIVATE *psf, int calc_length) ; +static int ircam_read_header (SF_PRIVATE *psf) ; + +static int get_encoding (int subformat) ; + +static const char* get_encoding_str (int encoding) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +ircam_open (SF_PRIVATE *psf) +{ int subformat ; + int error = SFE_NO_ERROR ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = ircam_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_IRCAM) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + if (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU) + psf->endian = (CPU_IS_BIG_ENDIAN) ? SF_ENDIAN_BIG : SF_ENDIAN_LITTLE ; + + psf->dataoffset = IRCAM_DATA_OFFSET ; + + if ((error = ircam_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = ircam_write_header ; + } ; + + psf->container_close = ircam_close ; + + switch (subformat) + { case SF_FORMAT_ULAW : /* 8-bit Ulaw encoding. */ + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : /* 8-bit Alaw encoding. */ + error = alaw_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ + case SF_FORMAT_PCM_32 : /* 32-bit linear PCM. */ + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_FLOAT : /* 32-bit linear PCM. */ + error = float32_init (psf) ; + break ; + + default : break ; + } ; + + return error ; +} /* ircam_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +ircam_read_header (SF_PRIVATE *psf) +{ unsigned int marker, encoding ; + float samplerate ; + int error = SFE_NO_ERROR ; + + psf_binheader_readf (psf, "epmf44", 0, &marker, &samplerate, &(psf->sf.channels), &encoding) ; + + if (((marker & IRCAM_BE_MASK) != IRCAM_BE_MARKER) && ((marker & IRCAM_LE_MASK) != IRCAM_LE_MARKER)) + { psf_log_printf (psf, "marker: 0x%X\n", marker) ; + return SFE_IRCAM_NO_MARKER ; + } ; + + psf->endian = SF_ENDIAN_LITTLE ; + + if (psf->sf.channels > 256) + { psf_binheader_readf (psf, "Epmf44", 0, &marker, &samplerate, &(psf->sf.channels), &encoding) ; + + /* Sanity checking for endian-ness detection. */ + if (psf->sf.channels > 256) + { psf_log_printf (psf, "marker: 0x%X\n", marker) ; + return SFE_IRCAM_BAD_CHANNELS ; + } ; + + psf->endian = SF_ENDIAN_BIG ; + } ; + + psf_log_printf (psf, "marker: 0x%X\n", marker) ; + + psf->sf.samplerate = (int) samplerate ; + + psf_log_printf (psf, " Sample Rate : %d\n" + " Channels : %d\n" + " Encoding : %X => %s\n", psf->sf.samplerate, psf->sf.channels, encoding, get_encoding_str (encoding)) ; + + switch (encoding) + { case IRCAM_PCM_16 : + psf->bytewidth = 2 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + psf->sf.format = SF_FORMAT_IRCAM | SF_FORMAT_PCM_16 ; + break ; + + case IRCAM_PCM_32 : + psf->bytewidth = 4 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + psf->sf.format = SF_FORMAT_IRCAM | SF_FORMAT_PCM_32 ; + break ; + + case IRCAM_FLOAT : + psf->bytewidth = 4 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + psf->sf.format = SF_FORMAT_IRCAM | SF_FORMAT_FLOAT ; + break ; + + case IRCAM_ALAW : + psf->bytewidth = 1 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + psf->sf.format = SF_FORMAT_IRCAM | SF_FORMAT_ALAW ; + break ; + + case IRCAM_ULAW : + psf->bytewidth = 1 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + psf->sf.format = SF_FORMAT_IRCAM | SF_FORMAT_ULAW ; + break ; + + default : + error = SFE_IRCAM_UNKNOWN_FORMAT ; + break ; + } ; + + if (psf->endian == SF_ENDIAN_BIG) + psf->sf.format |= SF_ENDIAN_BIG ; + else + psf->sf.format |= SF_ENDIAN_LITTLE ; + + if (error) + return error ; + + psf->dataoffset = IRCAM_DATA_OFFSET ; + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->sf.frames == 0 && psf->blockwidth) + psf->sf.frames = psf->datalength / psf->blockwidth ; + + psf_log_printf (psf, " Samples : %d\n", psf->sf.frames) ; + + psf_binheader_readf (psf, "p", IRCAM_DATA_OFFSET) ; + + return 0 ; +} /* ircam_read_header */ + +static int +ircam_close (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "close\n") ; + + return 0 ; +} /* ircam_close */ + +static int +ircam_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ int encoding ; + float samplerate ; + sf_count_t current ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + /* This also sets psf->endian. */ + encoding = get_encoding (SF_CODEC (psf->sf.format)) ; + + if (encoding == 0) + return SFE_BAD_OPEN_FORMAT ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + samplerate = psf->sf.samplerate ; + + switch (psf->endian) + { case SF_ENDIAN_BIG : + psf_binheader_writef (psf, "Emf", IRCAM_02B_MARKER, samplerate) ; + psf_binheader_writef (psf, "E44", psf->sf.channels, encoding) ; + break ; + + case SF_ENDIAN_LITTLE : + psf_binheader_writef (psf, "emf", IRCAM_03L_MARKER, samplerate) ; + psf_binheader_writef (psf, "e44", psf->sf.channels, encoding) ; + break ; + + default : return SFE_BAD_OPEN_FORMAT ; + } ; + + psf_binheader_writef (psf, "z", (size_t) (IRCAM_DATA_OFFSET - psf->headindex)) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* ircam_write_header */ + +static int +get_encoding (int subformat) +{ switch (subformat) + { case SF_FORMAT_PCM_16 : return IRCAM_PCM_16 ; + case SF_FORMAT_PCM_32 : return IRCAM_PCM_32 ; + + case SF_FORMAT_FLOAT : return IRCAM_FLOAT ; + + case SF_FORMAT_ULAW : return IRCAM_ULAW ; + case SF_FORMAT_ALAW : return IRCAM_ALAW ; + + default : break ; + } ; + + return 0 ; +} /* get_encoding */ + +static const char* +get_encoding_str (int encoding) +{ switch (encoding) + { case IRCAM_PCM_16 : return "16 bit PCM" ; + case IRCAM_FLOAT : return "32 bit float" ; + case IRCAM_ALAW : return "A law" ; + case IRCAM_ULAW : return "u law" ; + case IRCAM_PCM_32 : return "32 bit PCM" ; + } ; + return "Unknown encoding" ; +} /* get_encoding_str */ + diff --git a/src/libsndfile-1.def b/src/libsndfile-1.def new file mode 100644 index 0000000..93cab02 --- /dev/null +++ b/src/libsndfile-1.def @@ -0,0 +1,41 @@ +; Auto-generated by create_symbols_file.py + +LIBRARY libsndfile-1.dll +EXPORTS + +sf_command @1 +sf_open @2 +sf_close @3 +sf_seek @4 +sf_error @7 +sf_perror @8 +sf_error_str @9 +sf_error_number @10 +sf_format_check @11 +sf_read_raw @16 +sf_readf_short @17 +sf_readf_int @18 +sf_readf_float @19 +sf_readf_double @20 +sf_read_short @21 +sf_read_int @22 +sf_read_float @23 +sf_read_double @24 +sf_write_raw @32 +sf_writef_short @33 +sf_writef_int @34 +sf_writef_float @35 +sf_writef_double @36 +sf_write_short @37 +sf_write_int @38 +sf_write_float @39 +sf_write_double @40 +sf_strerror @50 +sf_get_string @60 +sf_set_string @61 +sf_version_string @68 +sf_open_fd @70 +sf_wchar_open @71 +sf_open_virtual @80 +sf_write_sync @90 + diff --git a/src/macbinary3.c b/src/macbinary3.c new file mode 100644 index 0000000..184cc18 --- /dev/null +++ b/src/macbinary3.c @@ -0,0 +1,45 @@ +/* +** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdlib.h> +#include <string.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (OS_IS_MACOSX == 1) + +int +macbinary3_open (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* macbinary3_open */ + +#else + +int +macbinary3_open (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* macbinary3_open */ + +#endif /* OS_IS_MACOSX */ + diff --git a/src/macos.c b/src/macos.c new file mode 100644 index 0000000..5f6c531 --- /dev/null +++ b/src/macos.c @@ -0,0 +1,51 @@ +/* +** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#define STR_MARKER MAKE_MARKER ('S', 'T', 'R', ' ') + +int +macos_guess_file_type (SF_PRIVATE * psf, const char *filename) +{ static char rsrc_name [1024] ; + struct stat statbuf ; + + snprintf (rsrc_name, sizeof (rsrc_name), "%s/rsrc", filename) ; + + /* If there is no resource fork, just return. */ + if (stat (rsrc_name, &statbuf) != 0) + { psf_log_printf (psf, "No resource fork.\n") ; + return 0 ; + } ; + + if (statbuf.st_size == 0) + { psf_log_printf (psf, "Have zero size resource fork.\n") ; + return 0 ; + } ; + + return 0 ; +} /* macos_guess_file_type */ + diff --git a/src/make-static-lib-hidden-privates.sh b/src/make-static-lib-hidden-privates.sh new file mode 100755 index 0000000..5bfd485 --- /dev/null +++ b/src/make-static-lib-hidden-privates.sh @@ -0,0 +1,14 @@ +#!/bin/bash -e + +# This script takes a static library and removes all non-public symbols. +# Ie, it makes a static lib whose symbols are far less likely to clash with +# the symbols of another shared or static library. + +grep sf_ Symbols.gnu-binutils | sed -e "s/[ ;]//g" > Symbols.static + +ld -r --whole-archive .libs/libsndfile.a -o libsndfile_a.o + +objcopy --keep-global-symbols=Symbols.static libsndfile_a.o libsndfile.o + +rm -f libsndfile.a +ar cru libsndfile.a libsndfile.o diff --git a/src/mat4.c b/src/mat4.c new file mode 100644 index 0000000..3471e34 --- /dev/null +++ b/src/mat4.c @@ -0,0 +1,389 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Information on how to decode and encode this file was obtained in a PDF +** file which I found on http://www.wotsit.org/. +** Also did a lot of testing with GNU Octave but do not have access to +** Matlab (tm) and so could not test it there. +*/ + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define MAT4_BE_DOUBLE (MAKE_MARKER (0, 0, 0x03, 0xE8)) +#define MAT4_LE_DOUBLE (MAKE_MARKER (0, 0, 0, 0)) + +#define MAT4_BE_FLOAT (MAKE_MARKER (0, 0, 0x03, 0xF2)) +#define MAT4_LE_FLOAT (MAKE_MARKER (0x0A, 0, 0, 0)) + +#define MAT4_BE_PCM_32 (MAKE_MARKER (0, 0, 0x03, 0xFC)) +#define MAT4_LE_PCM_32 (MAKE_MARKER (0x14, 0, 0, 0)) + +#define MAT4_BE_PCM_16 (MAKE_MARKER (0, 0, 0x04, 0x06)) +#define MAT4_LE_PCM_16 (MAKE_MARKER (0x1E, 0, 0, 0)) + +/* Can't see any reason to ever implement this. */ +#define MAT4_BE_PCM_U8 (MAKE_MARKER (0, 0, 0x04, 0x1A)) +#define MAT4_LE_PCM_U8 (MAKE_MARKER (0x32, 0, 0, 0)) + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int mat4_close (SF_PRIVATE *psf) ; + +static int mat4_format_to_encoding (int format, int endian) ; + +static int mat4_write_header (SF_PRIVATE *psf, int calc_length) ; +static int mat4_read_header (SF_PRIVATE *psf) ; + +static const char * mat4_marker_to_str (int marker) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +mat4_open (SF_PRIVATE *psf) +{ int subformat, error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = mat4_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_MAT4) + return SFE_BAD_OPEN_FORMAT ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) + psf->endian = SF_ENDIAN_LITTLE ; + else if (CPU_IS_BIG_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) + psf->endian = SF_ENDIAN_BIG ; + + if ((error = mat4_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = mat4_write_header ; + } ; + + psf->container_close = mat4_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + default : break ; + } ; + + if (error) + return error ; + + return error ; +} /* mat4_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +mat4_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + mat4_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* mat4_close */ + +/*------------------------------------------------------------------------------ +*/ + +static int +mat4_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int encoding ; + double samplerate ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + encoding = mat4_format_to_encoding (SF_CODEC (psf->sf.format), psf->endian) ; + + if (encoding == -1) + return SFE_BAD_OPEN_FORMAT ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* Need sample rate as a double for writing to the header. */ + samplerate = psf->sf.samplerate ; + + if (psf->endian == SF_ENDIAN_BIG) + { psf_binheader_writef (psf, "Em444", MAT4_BE_DOUBLE, 1, 1, 0) ; + psf_binheader_writef (psf, "E4bd", 11, "samplerate", make_size_t (11), samplerate) ; + psf_binheader_writef (psf, "tEm484", encoding, psf->sf.channels, psf->sf.frames, 0) ; + psf_binheader_writef (psf, "E4b", 9, "wavedata", make_size_t (9)) ; + } + else if (psf->endian == SF_ENDIAN_LITTLE) + { psf_binheader_writef (psf, "em444", MAT4_LE_DOUBLE, 1, 1, 0) ; + psf_binheader_writef (psf, "e4bd", 11, "samplerate", make_size_t (11), samplerate) ; + psf_binheader_writef (psf, "tem484", encoding, psf->sf.channels, psf->sf.frames, 0) ; + psf_binheader_writef (psf, "e4b", 9, "wavedata", make_size_t (9)) ; + } + else + return SFE_BAD_OPEN_FORMAT ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* mat4_write_header */ + +static int +mat4_read_header (SF_PRIVATE *psf) +{ int marker, rows, cols, imag ; + unsigned namesize ; + double value ; + const char *marker_str ; + char name [64] ; + + psf_binheader_readf (psf, "pm", 0, &marker) ; + + /* MAT4 file must start with a double for the samplerate. */ + if (marker == MAT4_BE_DOUBLE) + { psf->endian = psf->rwf_endian = SF_ENDIAN_BIG ; + marker_str = "big endian double" ; + } + else if (marker == MAT4_LE_DOUBLE) + { psf->endian = psf->rwf_endian = SF_ENDIAN_LITTLE ; + marker_str = "little endian double" ; + } + else + return SFE_UNIMPLEMENTED ; + + psf_log_printf (psf, "GNU Octave 2.0 / MATLAB v4.2 format\nMarker : %s\n", marker_str) ; + + psf_binheader_readf (psf, "444", &rows, &cols, &imag) ; + + psf_log_printf (psf, " Rows : %d\n Cols : %d\n Imag : %s\n", rows, cols, imag ? "True" : "False") ; + + psf_binheader_readf (psf, "4", &namesize) ; + + if (namesize >= SIGNED_SIZEOF (name)) + return SFE_MAT4_BAD_NAME ; + + psf_binheader_readf (psf, "b", name, namesize) ; + name [namesize] = 0 ; + + psf_log_printf (psf, " Name : %s\n", name) ; + + psf_binheader_readf (psf, "d", &value) ; + + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), " Value : %f\n", value) ; + psf_log_printf (psf, psf->u.cbuf) ; + + if ((rows != 1) || (cols != 1)) + return SFE_MAT4_NO_SAMPLERATE ; + + psf->sf.samplerate = lrint (value) ; + + /* Now write out the audio data. */ + + psf_binheader_readf (psf, "m", &marker) ; + + psf_log_printf (psf, "Marker : %s\n", mat4_marker_to_str (marker)) ; + + psf_binheader_readf (psf, "444", &rows, &cols, &imag) ; + + psf_log_printf (psf, " Rows : %d\n Cols : %d\n Imag : %s\n", rows, cols, imag ? "True" : "False") ; + + psf_binheader_readf (psf, "4", &namesize) ; + + if (namesize >= SIGNED_SIZEOF (name)) + return SFE_MAT4_BAD_NAME ; + + psf_binheader_readf (psf, "b", name, namesize) ; + name [namesize] = 0 ; + + psf_log_printf (psf, " Name : %s\n", name) ; + + psf->dataoffset = psf_ftell (psf) ; + + if (rows == 0 && cols == 0) + { psf_log_printf (psf, "*** Error : zero channel count.\n") ; + return SFE_CHANNEL_COUNT_ZERO ; + } ; + + psf->sf.channels = rows ; + psf->sf.frames = cols ; + + psf->sf.format = psf->endian | SF_FORMAT_MAT4 ; + switch (marker) + { case MAT4_BE_DOUBLE : + case MAT4_LE_DOUBLE : + psf->sf.format |= SF_FORMAT_DOUBLE ; + psf->bytewidth = 8 ; + break ; + + case MAT4_BE_FLOAT : + case MAT4_LE_FLOAT : + psf->sf.format |= SF_FORMAT_FLOAT ; + psf->bytewidth = 4 ; + break ; + + case MAT4_BE_PCM_32 : + case MAT4_LE_PCM_32 : + psf->sf.format |= SF_FORMAT_PCM_32 ; + psf->bytewidth = 4 ; + break ; + + case MAT4_BE_PCM_16 : + case MAT4_LE_PCM_16 : + psf->sf.format |= SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + + default : + psf_log_printf (psf, "*** Error : Bad marker %08X\n", marker) ; + return SFE_UNIMPLEMENTED ; + } ; + + if ((psf->filelength - psf->dataoffset) < psf->sf.channels * psf->sf.frames * psf->bytewidth) + { psf_log_printf (psf, "*** File seems to be truncated. %D <--> %D\n", + psf->filelength - psf->dataoffset, psf->sf.channels * psf->sf.frames * psf->bytewidth) ; + } + else if ((psf->filelength - psf->dataoffset) > psf->sf.channels * psf->sf.frames * psf->bytewidth) + psf->dataend = psf->dataoffset + rows * cols * psf->bytewidth ; + + psf->datalength = psf->filelength - psf->dataoffset - psf->dataend ; + + psf->sf.sections = 1 ; + + return 0 ; +} /* mat4_read_header */ + +static int +mat4_format_to_encoding (int format, int endian) +{ + switch (format | endian) + { case (SF_FORMAT_PCM_16 | SF_ENDIAN_BIG) : + return MAT4_BE_PCM_16 ; + + case (SF_FORMAT_PCM_16 | SF_ENDIAN_LITTLE) : + return MAT4_LE_PCM_16 ; + + case (SF_FORMAT_PCM_32 | SF_ENDIAN_BIG) : + return MAT4_BE_PCM_32 ; + + case (SF_FORMAT_PCM_32 | SF_ENDIAN_LITTLE) : + return MAT4_LE_PCM_32 ; + + case (SF_FORMAT_FLOAT | SF_ENDIAN_BIG) : + return MAT4_BE_FLOAT ; + + case (SF_FORMAT_FLOAT | SF_ENDIAN_LITTLE) : + return MAT4_LE_FLOAT ; + + case (SF_FORMAT_DOUBLE | SF_ENDIAN_BIG) : + return MAT4_BE_DOUBLE ; + + case (SF_FORMAT_DOUBLE | SF_ENDIAN_LITTLE) : + return MAT4_LE_DOUBLE ; + + default : break ; + } ; + + return -1 ; +} /* mat4_format_to_encoding */ + +static const char * +mat4_marker_to_str (int marker) +{ static char str [32] ; + + switch (marker) + { + case MAT4_BE_PCM_16 : return "big endian 16 bit PCM" ; + case MAT4_LE_PCM_16 : return "little endian 16 bit PCM" ; + + case MAT4_BE_PCM_32 : return "big endian 32 bit PCM" ; + case MAT4_LE_PCM_32 : return "little endian 32 bit PCM" ; + + + case MAT4_BE_FLOAT : return "big endian float" ; + case MAT4_LE_FLOAT : return "big endian float" ; + + case MAT4_BE_DOUBLE : return "big endian double" ; + case MAT4_LE_DOUBLE : return "little endian double" ; + } ; + + /* This is a little unsafe but is really only for debugging. */ + str [sizeof (str) - 1] = 0 ; + snprintf (str, sizeof (str) - 1, "%08X", marker) ; + return str ; +} /* mat4_marker_to_str */ + diff --git a/src/mat5.c b/src/mat5.c new file mode 100644 index 0000000..338477e --- /dev/null +++ b/src/mat5.c @@ -0,0 +1,501 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Information on how to decode and encode this file was obtained in a PDF +** file which I found on http://www.wotsit.org/. +** Also did a lot of testing with GNU Octave but do not have access to +** Matlab (tm) and so could not test it there. +*/ + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define MATL_MARKER (MAKE_MARKER ('M', 'A', 'T', 'L')) + +#define IM_MARKER (('I' << 8) + 'M') +#define MI_MARKER (('M' << 8) + 'I') + +/*------------------------------------------------------------------------------ +** Enums and typedefs. +*/ + +enum +{ MAT5_TYPE_SCHAR = 0x1, + MAT5_TYPE_UCHAR = 0x2, + MAT5_TYPE_INT16 = 0x3, + MAT5_TYPE_UINT16 = 0x4, + MAT5_TYPE_INT32 = 0x5, + MAT5_TYPE_UINT32 = 0x6, + MAT5_TYPE_FLOAT = 0x7, + MAT5_TYPE_DOUBLE = 0x9, + MAT5_TYPE_ARRAY = 0xE, + + MAT5_TYPE_COMP_USHORT = 0x00020004, + MAT5_TYPE_COMP_UINT = 0x00040006 +} ; + +typedef struct +{ sf_count_t size ; + int rows, cols ; + char name [32] ; +} MAT5_MATRIX ; + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int mat5_close (SF_PRIVATE *psf) ; + +static int mat5_write_header (SF_PRIVATE *psf, int calc_length) ; +static int mat5_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +mat5_open (SF_PRIVATE *psf) +{ int subformat, error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = mat5_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_MAT5) + return SFE_BAD_OPEN_FORMAT ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) + psf->endian = SF_ENDIAN_LITTLE ; + else if (CPU_IS_BIG_ENDIAN && (psf->endian == SF_ENDIAN_CPU || psf->endian == 0)) + psf->endian = SF_ENDIAN_BIG ; + + if ((error = mat5_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = mat5_write_header ; + } ; + + psf->container_close = mat5_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + default : break ; + } ; + + return error ; +} /* mat5_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +mat5_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + mat5_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* mat5_close */ + +/*------------------------------------------------------------------------------ +*/ + +static int +mat5_write_header (SF_PRIVATE *psf, int calc_length) +{ static const char *filename = "MATLAB 5.0 MAT-file, written by " PACKAGE "-" VERSION ", " ; + static const char *sr_name = "samplerate\0\0\0\0\0\0\0\0\0\0\0" ; + static const char *wd_name = "wavedata\0" ; + sf_count_t current, datasize ; + int encoding ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf_fseek (psf, 0, SEEK_END) ; + psf->filelength = psf_ftell (psf) ; + psf_fseek (psf, 0, SEEK_SET) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_U8 : + encoding = MAT5_TYPE_UCHAR ; + break ; + + case SF_FORMAT_PCM_16 : + encoding = MAT5_TYPE_INT16 ; + break ; + + case SF_FORMAT_PCM_32 : + encoding = MAT5_TYPE_INT32 ; + break ; + + case SF_FORMAT_FLOAT : + encoding = MAT5_TYPE_FLOAT ; + break ; + + case SF_FORMAT_DOUBLE : + encoding = MAT5_TYPE_DOUBLE ; + break ; + + default : + return SFE_BAD_OPEN_FORMAT ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + psf_get_date_str (psf->u.cbuf, sizeof (psf->u.scbuf)) ; + psf_binheader_writef (psf, "bb", filename, strlen (filename), psf->u.cbuf, strlen (psf->u.cbuf) + 1) ; + + memset (psf->u.scbuf, ' ', 124 - psf->headindex) ; + psf_binheader_writef (psf, "b", psf->u.scbuf, make_size_t (124 - psf->headindex)) ; + + psf->rwf_endian = psf->endian ; + + if (psf->rwf_endian == SF_ENDIAN_BIG) + psf_binheader_writef (psf, "2b", 0x0100, "MI", make_size_t (2)) ; + else + psf_binheader_writef (psf, "2b", 0x0100, "IM", make_size_t (2)) ; + + psf_binheader_writef (psf, "444444", MAT5_TYPE_ARRAY, 64, MAT5_TYPE_UINT32, 8, 6, 0) ; + psf_binheader_writef (psf, "4444", MAT5_TYPE_INT32, 8, 1, 1) ; + psf_binheader_writef (psf, "44b", MAT5_TYPE_SCHAR, strlen (sr_name), sr_name, make_size_t (16)) ; + + if (psf->sf.samplerate > 0xFFFF) + psf_binheader_writef (psf, "44", MAT5_TYPE_COMP_UINT, psf->sf.samplerate) ; + else + { unsigned short samplerate = psf->sf.samplerate ; + + psf_binheader_writef (psf, "422", MAT5_TYPE_COMP_USHORT, samplerate, 0) ; + } ; + + datasize = psf->sf.frames * psf->sf.channels * psf->bytewidth ; + + psf_binheader_writef (psf, "t484444", MAT5_TYPE_ARRAY, datasize + 64, MAT5_TYPE_UINT32, 8, 6, 0) ; + psf_binheader_writef (psf, "t4448", MAT5_TYPE_INT32, 8, psf->sf.channels, psf->sf.frames) ; + psf_binheader_writef (psf, "44b", MAT5_TYPE_SCHAR, strlen (wd_name), wd_name, strlen (wd_name)) ; + + datasize = psf->sf.frames * psf->sf.channels * psf->bytewidth ; + if (datasize > 0x7FFFFFFF) + datasize = 0x7FFFFFFF ; + + psf_binheader_writef (psf, "t48", encoding, datasize) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* mat5_write_header */ + +static int +mat5_read_header (SF_PRIVATE *psf) +{ char name [32] ; + short version, endian ; + int type, flags1, flags2, rows, cols ; + unsigned size ; + + psf_binheader_readf (psf, "pb", 0, psf->u.cbuf, 124) ; + + psf->u.scbuf [125] = 0 ; + + if (strlen (psf->u.cbuf) >= 124) + return SFE_UNIMPLEMENTED ; + + if (strstr (psf->u.cbuf, "MATLAB 5.0 MAT-file") == psf->u.cbuf) + psf_log_printf (psf, "%s\n", psf->u.scbuf) ; + + + psf_binheader_readf (psf, "E22", &version, &endian) ; + + if (endian == MI_MARKER) + { psf->endian = psf->rwf_endian = SF_ENDIAN_BIG ; + if (CPU_IS_LITTLE_ENDIAN) version = ENDSWAP_SHORT (version) ; + } + else if (endian == IM_MARKER) + { psf->endian = psf->rwf_endian = SF_ENDIAN_LITTLE ; + if (CPU_IS_BIG_ENDIAN) version = ENDSWAP_SHORT (version) ; + } + else + return SFE_MAT5_BAD_ENDIAN ; + + if ((CPU_IS_LITTLE_ENDIAN && endian == IM_MARKER) || + (CPU_IS_BIG_ENDIAN && endian == MI_MARKER)) + version = ENDSWAP_SHORT (version) ; + + psf_log_printf (psf, "Version : 0x%04X\n", version) ; + psf_log_printf (psf, "Endian : 0x%04X => %s\n", endian, + (psf->endian == SF_ENDIAN_LITTLE) ? "Little" : "Big") ; + + /*========================================================*/ + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, "Block\n Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_ARRAY) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_UINT32) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &flags1, &flags2) ; + psf_log_printf (psf, " Flg1 : %X Flg2 : %d\n", flags1, flags2) ; + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_INT32) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &rows, &cols) ; + psf_log_printf (psf, " Rows : %X Cols : %d\n", rows, cols) ; + + if (rows != 1 || cols != 1) + return SFE_MAT5_SAMPLE_RATE ; + + psf_binheader_readf (psf, "4", &type) ; + + if (type == MAT5_TYPE_SCHAR) + { psf_binheader_readf (psf, "4", &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + if (size > SIGNED_SIZEOF (name) - 1) + { psf_log_printf (psf, "Error : Bad name length.\n") ; + return SFE_MAT5_NO_BLOCK ; + } ; + + psf_binheader_readf (psf, "bj", name, size, (8 - (size % 8)) % 8) ; + name [size] = 0 ; + } + else if ((type & 0xFFFF) == MAT5_TYPE_SCHAR) + { size = type >> 16 ; + if (size > 4) + { psf_log_printf (psf, "Error : Bad name length.\n") ; + return SFE_MAT5_NO_BLOCK ; + } ; + + psf_log_printf (psf, " Type : %X\n", type) ; + psf_binheader_readf (psf, "4", &name) ; + name [size] = 0 ; + } + else + return SFE_MAT5_NO_BLOCK ; + + psf_log_printf (psf, " Name : %s\n", name) ; + + /*-----------------------------------------*/ + + psf_binheader_readf (psf, "44", &type, &size) ; + + switch (type) + { case MAT5_TYPE_DOUBLE : + { double samplerate ; + + psf_binheader_readf (psf, "d", &samplerate) ; + snprintf (name, sizeof (name), "%f\n", samplerate) ; + psf_log_printf (psf, " Val : %s\n", name) ; + + psf->sf.samplerate = lrint (samplerate) ; + } ; + break ; + + case MAT5_TYPE_COMP_USHORT : + { unsigned short samplerate ; + + psf_binheader_readf (psf, "j2j", -4, &samplerate, 2) ; + psf_log_printf (psf, " Val : %u\n", samplerate) ; + psf->sf.samplerate = samplerate ; + } + break ; + + case MAT5_TYPE_COMP_UINT : + psf_log_printf (psf, " Val : %u\n", size) ; + psf->sf.samplerate = size ; + break ; + + default : + psf_log_printf (psf, " Type : %X Size : %d ***\n", type, size) ; + return SFE_MAT5_SAMPLE_RATE ; + } ; + + /*-----------------------------------------*/ + + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_ARRAY) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_UINT32) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &flags1, &flags2) ; + psf_log_printf (psf, " Flg1 : %X Flg2 : %d\n", flags1, flags2) ; + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + if (type != MAT5_TYPE_INT32) + return SFE_MAT5_NO_BLOCK ; + + psf_binheader_readf (psf, "44", &rows, &cols) ; + psf_log_printf (psf, " Rows : %X Cols : %d\n", rows, cols) ; + + psf_binheader_readf (psf, "4", &type) ; + + if (type == MAT5_TYPE_SCHAR) + { psf_binheader_readf (psf, "4", &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + if (size > SIGNED_SIZEOF (name) - 1) + { psf_log_printf (psf, "Error : Bad name length.\n") ; + return SFE_MAT5_NO_BLOCK ; + } ; + + psf_binheader_readf (psf, "bj", name, size, (8 - (size % 8)) % 8) ; + name [size] = 0 ; + } + else if ((type & 0xFFFF) == MAT5_TYPE_SCHAR) + { size = type >> 16 ; + if (size > 4) + { psf_log_printf (psf, "Error : Bad name length.\n") ; + return SFE_MAT5_NO_BLOCK ; + } ; + + psf_log_printf (psf, " Type : %X\n", type) ; + psf_binheader_readf (psf, "4", &name) ; + name [size] = 0 ; + } + else + return SFE_MAT5_NO_BLOCK ; + + psf_log_printf (psf, " Name : %s\n", name) ; + + psf_binheader_readf (psf, "44", &type, &size) ; + psf_log_printf (psf, " Type : %X Size : %d\n", type, size) ; + + /*++++++++++++++++++++++++++++++++++++++++++++++++++*/ + + if (rows == 0 && cols == 0) + { psf_log_printf (psf, "*** Error : zero channel count.\n") ; + return SFE_CHANNEL_COUNT_ZERO ; + } ; + + psf->sf.channels = rows ; + psf->sf.frames = cols ; + + psf->sf.format = psf->endian | SF_FORMAT_MAT5 ; + + switch (type) + { case MAT5_TYPE_DOUBLE : + psf_log_printf (psf, "Data type : double\n") ; + psf->sf.format |= SF_FORMAT_DOUBLE ; + psf->bytewidth = 8 ; + break ; + + case MAT5_TYPE_FLOAT : + psf_log_printf (psf, "Data type : float\n") ; + psf->sf.format |= SF_FORMAT_FLOAT ; + psf->bytewidth = 4 ; + break ; + + case MAT5_TYPE_INT32 : + psf_log_printf (psf, "Data type : 32 bit PCM\n") ; + psf->sf.format |= SF_FORMAT_PCM_32 ; + psf->bytewidth = 4 ; + break ; + + case MAT5_TYPE_INT16 : + psf_log_printf (psf, "Data type : 16 bit PCM\n") ; + psf->sf.format |= SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + + case MAT5_TYPE_UCHAR : + psf_log_printf (psf, "Data type : unsigned 8 bit PCM\n") ; + psf->sf.format |= SF_FORMAT_PCM_U8 ; + psf->bytewidth = 1 ; + break ; + + default : + psf_log_printf (psf, "*** Error : Bad marker %08X\n", type) ; + return SFE_UNIMPLEMENTED ; + } ; + + psf->dataoffset = psf_ftell (psf) ; + psf->datalength = psf->filelength - psf->dataoffset ; + + return 0 ; +} /* mat5_read_header */ + diff --git a/src/mpc2k.c b/src/mpc2k.c new file mode 100644 index 0000000..0170f7c --- /dev/null +++ b/src/mpc2k.c @@ -0,0 +1,204 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/* +** Info from Olivier Tristan <o.tristan@ultimatesoundbank.com> +** +** HEADER +** 2 magic bytes: 1 and 4. +** 17 char for the name of the sample. +** 3 bytes: level, tune and channels (0 for channels is mono while 1 is stereo) +** 4 uint32: sampleStart, loopEnd, sampleFrames and loopLength +** 1 byte: loopMode (0 no loop, 1 forward looping) +** 1 byte: number of beat in loop +** 1 uint16: sampleRate +** +** DATA +** Data are always non compressed 16 bits interleaved +*/ + +#define HEADER_LENGTH 42 /* Sum of above data fields. */ +#define HEADER_NAME_LEN 17 /* Length of name string. */ + +#define SFE_MPC_NO_MARKER 666 + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int mpc2k_close (SF_PRIVATE *psf) ; + +static int mpc2k_write_header (SF_PRIVATE *psf, int calc_length) ; +static int mpc2k_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +mpc2k_open (SF_PRIVATE *psf) +{ int error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = mpc2k_read_header (psf))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_MPC2K) + return SFE_BAD_OPEN_FORMAT ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (mpc2k_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = mpc2k_write_header ; + } ; + + psf->container_close = mpc2k_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + error = pcm_init (psf) ; + + return error ; +} /* mpc2k_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +mpc2k_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + mpc2k_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* mpc2k_close */ + +static int +mpc2k_write_header (SF_PRIVATE *psf, int calc_length) +{ char sample_name [HEADER_NAME_LEN + 1] ; + sf_count_t current ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->dataoffset = HEADER_LENGTH ; + psf->datalength = psf->filelength - psf->dataoffset ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + /* + ** Only attempt to seek if we are not writng to a pipe. If we are + ** writing to a pipe we shouldn't be here anyway. + */ + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + snprintf (sample_name, sizeof (sample_name), "%s ", psf->file.name.c) ; + + psf_binheader_writef (psf, "e11b", 1, 4, sample_name, make_size_t (HEADER_NAME_LEN)) ; + psf_binheader_writef (psf, "e111", 100, 0, (psf->sf.channels - 1) & 1) ; + psf_binheader_writef (psf, "et4888", 0, psf->sf.frames, psf->sf.frames, psf->sf.frames) ; + psf_binheader_writef (psf, "e112", 0, 1, (uint16_t) psf->sf.samplerate) ; + + /* Always 16 bit little endian data. */ + psf->bytewidth = 2 ; + psf->endian = SF_ENDIAN_LITTLE ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* mpc2k_write_header */ + +static int +mpc2k_read_header (SF_PRIVATE *psf) +{ char sample_name [HEADER_NAME_LEN + 1] ; + unsigned char bytes [4] ; + uint32_t sample_start, loop_end, sample_frames, loop_length ; + uint16_t sample_rate ; + + psf_binheader_readf (psf, "pebb", 0, bytes, 2, sample_name, make_size_t (HEADER_NAME_LEN)) ; + + if (bytes [0] != 1 || bytes [1] != 4) + return SFE_MPC_NO_MARKER ; + + sample_name [HEADER_NAME_LEN] = 0 ; + + psf_log_printf (psf, "MPC2000\n Name : %s\n", sample_name) ; + + psf_binheader_readf (psf, "eb4444", bytes, 3, &sample_start, &loop_end, &sample_frames, &loop_length) ; + + psf->sf.channels = bytes [2] ? 2 : 1 ; + + psf_log_printf (psf, " Level : %d\n Tune : %d\n Stereo : %s\n", bytes [0], bytes [1], bytes [2] ? "Yes" : "No") ; + + psf_log_printf (psf, " Sample start : %d\n Loop end : %d\n Frames : %d\n Length : %d\n", sample_start, loop_end, sample_frames, loop_length) ; + + psf_binheader_readf (psf, "eb2", bytes, 2, &sample_rate) ; + + psf_log_printf (psf, " Loop mode : %s\n Beats : %d\n Sample rate : %d\nEnd\n", bytes [0] ? "None" : "Fwd", bytes [1], sample_rate) ; + + psf->sf.samplerate = sample_rate ; + + psf->sf.format = SF_FORMAT_MPC2K | SF_FORMAT_PCM_16 ; + + psf->dataoffset = psf_ftell (psf) ; + + /* Always 16 bit little endian data. */ + psf->bytewidth = 2 ; + psf->endian = SF_ENDIAN_LITTLE ; + + psf->datalength = psf->filelength - psf->dataoffset ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + psf->sf.frames = psf->datalength / psf->blockwidth ; + + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + return 0 ; +} /* mpc2k_read_header */ + diff --git a/src/ms_adpcm.c b/src/ms_adpcm.c new file mode 100644 index 0000000..7d04f85 --- /dev/null +++ b/src/ms_adpcm.c @@ -0,0 +1,834 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" + +/* These required here because we write the header in this file. */ + +#define RIFF_MARKER (MAKE_MARKER ('R', 'I', 'F', 'F')) +#define WAVE_MARKER (MAKE_MARKER ('W', 'A', 'V', 'E')) +#define fmt_MARKER (MAKE_MARKER ('f', 'm', 't', ' ')) +#define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't')) +#define data_MARKER (MAKE_MARKER ('d', 'a', 't', 'a')) + +#define WAVE_FORMAT_MS_ADPCM 0x0002 + +typedef struct +{ int channels, blocksize, samplesperblock, blocks, dataremaining ; + int blockcount ; + sf_count_t samplecount ; + short *samples ; + unsigned char *block ; +#if HAVE_FLEXIBLE_ARRAY + short dummydata [] ; /* ISO C99 struct flexible array. */ +#else + short dummydata [0] ; /* This is a hack an might not work. */ +#endif +} MSADPCM_PRIVATE ; + +/*============================================================================================ +** MS ADPCM static data and functions. +*/ + +static int AdaptationTable [] = +{ 230, 230, 230, 230, 307, 409, 512, 614, + 768, 614, 512, 409, 307, 230, 230, 230 +} ; + +/* TODO : The first 7 coef's are are always hardcode and must + appear in the actual WAVE file. They should be read in + in case a sound program added extras to the list. */ + +static int AdaptCoeff1 [MSADPCM_ADAPT_COEFF_COUNT] = +{ 256, 512, 0, 192, 240, 460, 392 +} ; + +static int AdaptCoeff2 [MSADPCM_ADAPT_COEFF_COUNT] = +{ 0, -256, 0, 64, 0, -208, -232 +} ; + +/*============================================================================================ +** MS ADPCM Block Layout. +** ====================== +** Block is usually 256, 512 or 1024 bytes depending on sample rate. +** For a mono file, the block is laid out as follows: +** byte purpose +** 0 block predictor [0..6] +** 1,2 initial idelta (positive) +** 3,4 sample 1 +** 5,6 sample 0 +** 7..n packed bytecodes +** +** For a stereo file, the block is laid out as follows: +** byte purpose +** 0 block predictor [0..6] for left channel +** 1 block predictor [0..6] for right channel +** 2,3 initial idelta (positive) for left channel +** 4,5 initial idelta (positive) for right channel +** 6,7 sample 1 for left channel +** 8,9 sample 1 for right channel +** 10,11 sample 0 for left channel +** 12,13 sample 0 for right channel +** 14..n packed bytecodes +*/ + +/*============================================================================================ +** Static functions. +*/ + +static int msadpcm_decode_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms) ; +static sf_count_t msadpcm_read_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms, short *ptr, int len) ; + +static int msadpcm_encode_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms) ; +static sf_count_t msadpcm_write_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms, const short *ptr, int len) ; + +static sf_count_t msadpcm_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t msadpcm_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t msadpcm_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t msadpcm_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t msadpcm_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t msadpcm_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t msadpcm_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t msadpcm_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t msadpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; +static int msadpcm_close (SF_PRIVATE *psf) ; + +static void choose_predictor (unsigned int channels, short *data, int *bpred, int *idelta) ; + +/*============================================================================================ +** MS ADPCM Read Functions. +*/ + +int +wav_w64_msadpcm_init (SF_PRIVATE *psf, int blockalign, int samplesperblock) +{ MSADPCM_PRIVATE *pms ; + unsigned int pmssize ; + int count ; + + if (psf->codec_data != NULL) + { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->file.mode == SFM_WRITE) + samplesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ; + + pmssize = sizeof (MSADPCM_PRIVATE) + blockalign + 3 * psf->sf.channels * samplesperblock ; + + if (! (psf->codec_data = calloc (1, pmssize))) + return SFE_MALLOC_FAILED ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + pms->samples = pms->dummydata ; + pms->block = (unsigned char*) (pms->dummydata + psf->sf.channels * samplesperblock) ; + + pms->channels = psf->sf.channels ; + pms->blocksize = blockalign ; + pms->samplesperblock = samplesperblock ; + + if (pms->blocksize == 0) + { psf_log_printf (psf, "*** Error : pms->blocksize should not be zero.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->file.mode == SFM_READ) + { pms->dataremaining = psf->datalength ; + + if (psf->datalength % pms->blocksize) + pms->blocks = psf->datalength / pms->blocksize + 1 ; + else + pms->blocks = psf->datalength / pms->blocksize ; + + count = 2 * (pms->blocksize - 6 * pms->channels) / pms->channels ; + if (pms->samplesperblock != count) + { psf_log_printf (psf, "*** Error : samplesperblock should be %d.\n", count) ; + return SFE_INTERNAL ; + } ; + + psf->sf.frames = (psf->datalength / pms->blocksize) * pms->samplesperblock ; + + psf_log_printf (psf, " bpred idelta\n") ; + + msadpcm_decode_block (psf, pms) ; + + psf->read_short = msadpcm_read_s ; + psf->read_int = msadpcm_read_i ; + psf->read_float = msadpcm_read_f ; + psf->read_double = msadpcm_read_d ; + } ; + + if (psf->file.mode == SFM_WRITE) + { pms->samples = pms->dummydata ; + + pms->samplecount = 0 ; + + psf->write_short = msadpcm_write_s ; + psf->write_int = msadpcm_write_i ; + psf->write_float = msadpcm_write_f ; + psf->write_double = msadpcm_write_d ; + } ; + + psf->codec_close = msadpcm_close ; + psf->seek = msadpcm_seek ; + + return 0 ; +} /* wav_w64_msadpcm_init */ + +static int +msadpcm_decode_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms) +{ int chan, k, blockindx, sampleindx ; + short bytecode, bpred [2], chan_idelta [2] ; + + int predict ; + int current ; + int idelta ; + + pms->blockcount ++ ; + pms->samplecount = 0 ; + + if (pms->blockcount > pms->blocks) + { memset (pms->samples, 0, pms->samplesperblock * pms->channels) ; + return 1 ; + } ; + + if ((k = psf_fread (pms->block, 1, pms->blocksize, psf)) != pms->blocksize) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pms->blocksize) ; + + /* Read and check the block header. */ + + if (pms->channels == 1) + { bpred [0] = pms->block [0] ; + + if (bpred [0] >= 7) + psf_log_printf (psf, "MS ADPCM synchronisation error (%d).\n", bpred [0]) ; + + chan_idelta [0] = pms->block [1] | (pms->block [2] << 8) ; + chan_idelta [1] = 0 ; + + psf_log_printf (psf, "(%d) (%d)\n", bpred [0], chan_idelta [0]) ; + + pms->samples [1] = pms->block [3] | (pms->block [4] << 8) ; + pms->samples [0] = pms->block [5] | (pms->block [6] << 8) ; + blockindx = 7 ; + } + else + { bpred [0] = pms->block [0] ; + bpred [1] = pms->block [1] ; + + if (bpred [0] >= 7 || bpred [1] >= 7) + psf_log_printf (psf, "MS ADPCM synchronisation error (%d %d).\n", bpred [0], bpred [1]) ; + + chan_idelta [0] = pms->block [2] | (pms->block [3] << 8) ; + chan_idelta [1] = pms->block [4] | (pms->block [5] << 8) ; + + psf_log_printf (psf, "(%d, %d) (%d, %d)\n", bpred [0], bpred [1], chan_idelta [0], chan_idelta [1]) ; + + pms->samples [2] = pms->block [6] | (pms->block [7] << 8) ; + pms->samples [3] = pms->block [8] | (pms->block [9] << 8) ; + + pms->samples [0] = pms->block [10] | (pms->block [11] << 8) ; + pms->samples [1] = pms->block [12] | (pms->block [13] << 8) ; + + blockindx = 14 ; + } ; + + /*-------------------------------------------------------- + This was left over from a time when calculations were done + as ints rather than shorts. Keep this around as a reminder + in case I ever find a file which decodes incorrectly. + + if (chan_idelta [0] & 0x8000) + chan_idelta [0] -= 0x10000 ; + if (chan_idelta [1] & 0x8000) + chan_idelta [1] -= 0x10000 ; + --------------------------------------------------------*/ + + /* Pull apart the packed 4 bit samples and store them in their + ** correct sample positions. + */ + + sampleindx = 2 * pms->channels ; + while (blockindx < pms->blocksize) + { bytecode = pms->block [blockindx++] ; + pms->samples [sampleindx++] = (bytecode >> 4) & 0x0F ; + pms->samples [sampleindx++] = bytecode & 0x0F ; + } ; + + /* Decode the encoded 4 bit samples. */ + + for (k = 2 * pms->channels ; k < (pms->samplesperblock * pms->channels) ; k ++) + { chan = (pms->channels > 1) ? (k % 2) : 0 ; + + bytecode = pms->samples [k] & 0xF ; + + /* Compute next Adaptive Scale Factor (ASF) */ + idelta = chan_idelta [chan] ; + chan_idelta [chan] = (AdaptationTable [bytecode] * idelta) >> 8 ; /* => / 256 => FIXED_POINT_ADAPTATION_BASE == 256 */ + if (chan_idelta [chan] < 16) + chan_idelta [chan] = 16 ; + if (bytecode & 0x8) + bytecode -= 0x10 ; + + predict = ((pms->samples [k - pms->channels] * AdaptCoeff1 [bpred [chan]]) + + (pms->samples [k - 2 * pms->channels] * AdaptCoeff2 [bpred [chan]])) >> 8 ; /* => / 256 => FIXED_POINT_COEFF_BASE == 256 */ + current = (bytecode * idelta) + predict ; + + if (current > 32767) + current = 32767 ; + else if (current < -32768) + current = -32768 ; + + pms->samples [k] = current ; + } ; + + return 1 ; +} /* msadpcm_decode_block */ + +static sf_count_t +msadpcm_read_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms, short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { if (pms->blockcount >= pms->blocks && pms->samplecount >= pms->samplesperblock) + { memset (&(ptr [indx]), 0, (size_t) ((len - indx) * sizeof (short))) ; + return total ; + } ; + + if (pms->samplecount >= pms->samplesperblock) + msadpcm_decode_block (psf, pms) ; + + count = (pms->samplesperblock - pms->samplecount) * pms->channels ; + count = (len - indx > count) ? count : len - indx ; + + memcpy (&(ptr [indx]), &(pms->samples [pms->samplecount * pms->channels]), count * sizeof (short)) ; + indx += count ; + pms->samplecount += count / pms->channels ; + total = indx ; + } ; + + return total ; +} /* msadpcm_read_block */ + +static sf_count_t +msadpcm_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + int readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = msadpcm_read_block (psf, pms, ptr, readcount) ; + + total += count ; + len -= count ; + if (count != readcount) + break ; + } ; + + return total ; +} /* msadpcm_read_s */ + +static sf_count_t +msadpcm_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = msadpcm_read_block (psf, pms, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = sptr [k] << 16 ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + return total ; +} /* msadpcm_read_i */ + +static sf_count_t +msadpcm_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = msadpcm_read_block (psf, pms, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (float) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + return total ; +} /* msadpcm_read_f */ + +static sf_count_t +msadpcm_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, readcount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = msadpcm_read_block (psf, pms, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (double) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + return total ; +} /* msadpcm_read_d */ + +static sf_count_t +msadpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) +{ MSADPCM_PRIVATE *pms ; + int newblock, newsample ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + if (psf->datalength < 0 || psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (offset == 0) + { psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + pms->blockcount = 0 ; + msadpcm_decode_block (psf, pms) ; + pms->samplecount = 0 ; + return 0 ; + } ; + + if (offset < 0 || offset > pms->blocks * pms->samplesperblock) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + newblock = offset / pms->samplesperblock ; + newsample = offset % pms->samplesperblock ; + + if (mode == SFM_READ) + { psf_fseek (psf, psf->dataoffset + newblock * pms->blocksize, SEEK_SET) ; + pms->blockcount = newblock ; + msadpcm_decode_block (psf, pms) ; + pms->samplecount = newsample ; + } + else + { /* What to do about write??? */ + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + return newblock * pms->samplesperblock + newsample ; +} /* msadpcm_seek */ + +/*========================================================================================== +** MS ADPCM Write Functions. +*/ + +void +msadpcm_write_adapt_coeffs (SF_PRIVATE *psf) +{ int k ; + + for (k = 0 ; k < MSADPCM_ADAPT_COEFF_COUNT ; k++) + psf_binheader_writef (psf, "22", AdaptCoeff1 [k], AdaptCoeff2 [k]) ; +} /* msadpcm_write_adapt_coeffs */ + +/*========================================================================================== +*/ + +static int +msadpcm_encode_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms) +{ unsigned int blockindx ; + unsigned char byte ; + int chan, k, predict, bpred [2], idelta [2], errordelta, newsamp ; + + choose_predictor (pms->channels, pms->samples, bpred, idelta) ; + + /* Write the block header. */ + + if (pms->channels == 1) + { pms->block [0] = bpred [0] ; + pms->block [1] = idelta [0] & 0xFF ; + pms->block [2] = idelta [0] >> 8 ; + pms->block [3] = pms->samples [1] & 0xFF ; + pms->block [4] = pms->samples [1] >> 8 ; + pms->block [5] = pms->samples [0] & 0xFF ; + pms->block [6] = pms->samples [0] >> 8 ; + + blockindx = 7 ; + byte = 0 ; + + /* Encode the samples as 4 bit. */ + + for (k = 2 ; k < pms->samplesperblock ; k++) + { predict = (pms->samples [k-1] * AdaptCoeff1 [bpred [0]] + pms->samples [k-2] * AdaptCoeff2 [bpred [0]]) >> 8 ; + errordelta = (pms->samples [k] - predict) / idelta [0] ; + if (errordelta < -8) + errordelta = -8 ; + else if (errordelta > 7) + errordelta = 7 ; + newsamp = predict + (idelta [0] * errordelta) ; + if (newsamp > 32767) + newsamp = 32767 ; + else if (newsamp < -32768) + newsamp = -32768 ; + if (errordelta < 0) + errordelta += 0x10 ; + + byte = (byte << 4) | (errordelta & 0xF) ; + if (k % 2) + { pms->block [blockindx++] = byte ; + byte = 0 ; + } ; + + idelta [0] = (idelta [0] * AdaptationTable [errordelta]) >> 8 ; + if (idelta [0] < 16) + idelta [0] = 16 ; + pms->samples [k] = newsamp ; + } ; + } + else + { /* Stereo file. */ + pms->block [0] = bpred [0] ; + pms->block [1] = bpred [1] ; + + pms->block [2] = idelta [0] & 0xFF ; + pms->block [3] = idelta [0] >> 8 ; + pms->block [4] = idelta [1] & 0xFF ; + pms->block [5] = idelta [1] >> 8 ; + + pms->block [6] = pms->samples [2] & 0xFF ; + pms->block [7] = pms->samples [2] >> 8 ; + pms->block [8] = pms->samples [3] & 0xFF ; + pms->block [9] = pms->samples [3] >> 8 ; + + pms->block [10] = pms->samples [0] & 0xFF ; + pms->block [11] = pms->samples [0] >> 8 ; + pms->block [12] = pms->samples [1] & 0xFF ; + pms->block [13] = pms->samples [1] >> 8 ; + + blockindx = 14 ; + byte = 0 ; + chan = 1 ; + + for (k = 4 ; k < 2 * pms->samplesperblock ; k++) + { chan = k & 1 ; + + predict = (pms->samples [k-2] * AdaptCoeff1 [bpred [chan]] + pms->samples [k-4] * AdaptCoeff2 [bpred [chan]]) >> 8 ; + errordelta = (pms->samples [k] - predict) / idelta [chan] ; + + + if (errordelta < -8) + errordelta = -8 ; + else if (errordelta > 7) + errordelta = 7 ; + newsamp = predict + (idelta [chan] * errordelta) ; + if (newsamp > 32767) + newsamp = 32767 ; + else if (newsamp < -32768) + newsamp = -32768 ; + if (errordelta < 0) + errordelta += 0x10 ; + + byte = (byte << 4) | (errordelta & 0xF) ; + + if (chan) + { pms->block [blockindx++] = byte ; + byte = 0 ; + } ; + + idelta [chan] = (idelta [chan] * AdaptationTable [errordelta]) >> 8 ; + if (idelta [chan] < 16) + idelta [chan] = 16 ; + pms->samples [k] = newsamp ; + } ; + } ; + + /* Write the block to disk. */ + + if ((k = psf_fwrite (pms->block, 1, pms->blocksize, psf)) != pms->blocksize) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pms->blocksize) ; + + memset (pms->samples, 0, pms->samplesperblock * sizeof (short)) ; + + pms->blockcount ++ ; + pms->samplecount = 0 ; + + return 1 ; +} /* msadpcm_encode_block */ + +static sf_count_t +msadpcm_write_block (SF_PRIVATE *psf, MSADPCM_PRIVATE *pms, const short *ptr, int len) +{ int count, total = 0, indx = 0 ; + + while (indx < len) + { count = (pms->samplesperblock - pms->samplecount) * pms->channels ; + + if (count > len - indx) + count = len - indx ; + + memcpy (&(pms->samples [pms->samplecount * pms->channels]), &(ptr [total]), count * sizeof (short)) ; + indx += count ; + pms->samplecount += count / pms->channels ; + total = indx ; + + if (pms->samplecount >= pms->samplesperblock) + msadpcm_encode_block (psf, pms) ; + } ; + + return total ; +} /* msadpcm_write_block */ + +static sf_count_t +msadpcm_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + int writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + while (len > 0) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = msadpcm_write_block (psf, pms, ptr, writecount) ; + + total += count ; + len -= count ; + if (count != writecount) + break ; + } ; + + return total ; +} /* msadpcm_write_s */ + +static sf_count_t +msadpcm_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = ptr [total + k] >> 16 ; + count = msadpcm_write_block (psf, pms, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + return total ; +} /* msadpcm_write_i */ + +static sf_count_t +msadpcm_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrintf (normfact * ptr [total + k]) ; + count = msadpcm_write_block (psf, pms, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + return total ; +} /* msadpcm_write_f */ + +static sf_count_t +msadpcm_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ MSADPCM_PRIVATE *pms ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + if (! psf->codec_data) + return 0 ; + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrint (normfact * ptr [total + k]) ; + count = msadpcm_write_block (psf, pms, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + return total ; +} /* msadpcm_write_d */ + +/*======================================================================================== +*/ + +static int +msadpcm_close (SF_PRIVATE *psf) +{ MSADPCM_PRIVATE *pms ; + + pms = (MSADPCM_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE) + { /* Now we know static int for certain the length of the file we can + ** re-write the header. + */ + + if (pms->samplecount && pms->samplecount < pms->samplesperblock) + msadpcm_encode_block (psf, pms) ; + } ; + + return 0 ; +} /* msadpcm_close */ + +/*======================================================================================== +** Static functions. +*/ + +/*---------------------------------------------------------------------------------------- +** Choosing the block predictor. +** Each block requires a predictor and an idelta for each channel. +** The predictor is in the range [0..6] which is an indx into the two AdaptCoeff tables. +** The predictor is chosen by trying all of the possible predictors on a small set of +** samples at the beginning of the block. The predictor with the smallest average +** abs (idelta) is chosen as the best predictor for this block. +** The value of idelta is chosen to to give a 4 bit code value of +/- 4 (approx. half the +** max. code value). If the average abs (idelta) is zero, the sixth predictor is chosen. +** If the value of idelta is less then 16 it is set to 16. +** +** Microsoft uses an IDELTA_COUNT (number of sample pairs used to choose best predictor) +** value of 3. The best possible results would be obtained by using all the samples to +** choose the predictor. +*/ + +#define IDELTA_COUNT 3 + +static void +choose_predictor (unsigned int channels, short *data, int *block_pred, int *idelta) +{ unsigned int chan, k, bpred, idelta_sum, best_bpred, best_idelta ; + + for (chan = 0 ; chan < channels ; chan++) + { best_bpred = best_idelta = 0 ; + + for (bpred = 0 ; bpred < 7 ; bpred++) + { idelta_sum = 0 ; + for (k = 2 ; k < 2 + IDELTA_COUNT ; k++) + idelta_sum += abs (data [k * channels] - ((data [(k - 1) * channels] * AdaptCoeff1 [bpred] + data [(k - 2) * channels] * AdaptCoeff2 [bpred]) >> 8)) ; + idelta_sum /= (4 * IDELTA_COUNT) ; + + if (bpred == 0 || idelta_sum < best_idelta) + { best_bpred = bpred ; + best_idelta = idelta_sum ; + } ; + + if (! idelta_sum) + { best_bpred = bpred ; + best_idelta = 16 ; + break ; + } ; + + } ; /* for bpred ... */ + if (best_idelta < 16) + best_idelta = 16 ; + + block_pred [chan] = best_bpred ; + idelta [chan] = best_idelta ; + } ; + + return ; +} /* choose_predictor */ + diff --git a/src/nist.c b/src/nist.c new file mode 100644 index 0000000..cd3afac --- /dev/null +++ b/src/nist.c @@ -0,0 +1,377 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** Some of the information used to read NIST files was gleaned from +** reading the code of Bill Schottstaedt's sndlib library +** ftp://ccrma-ftp.stanford.edu/pub/Lisp/sndlib.tar.gz +** However, no code from that package was used. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +*/ + +#define NIST_HEADER_LENGTH 1024 + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int nist_close (SF_PRIVATE *psf) ; +static int nist_write_header (SF_PRIVATE *psf, int calc_length) ; +static int nist_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +*/ + +int +nist_open (SF_PRIVATE *psf) +{ int error ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = nist_read_header (psf))) + return error ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_NIST) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + if (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU) + psf->endian = (CPU_IS_BIG_ENDIAN) ? SF_ENDIAN_BIG : SF_ENDIAN_LITTLE ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + psf->sf.frames = 0 ; + + if ((error = nist_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = nist_write_header ; + } ; + + psf->container_close = nist_close ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + default : error = SFE_UNIMPLEMENTED ; + break ; + } ; + + return error ; +} /* nist_open */ + +/*------------------------------------------------------------------------------ +*/ + +static char bad_header [] = +{ 'N', 'I', 'S', 'T', '_', '1', 'A', 0x0d, 0x0a, + ' ', ' ', ' ', '1', '0', '2', '4', 0x0d, 0x0a, + 0 +} ; + + static int +nist_read_header (SF_PRIVATE *psf) +{ char *psf_header ; + int bitwidth = 0, count, encoding ; + unsigned bytes = 0 ; + char str [64], *cptr ; + long samples ; + + psf_header = psf->u.cbuf ; + + if (sizeof (psf->header) <= NIST_HEADER_LENGTH) + return SFE_INTERNAL ; + + /* Go to start of file and read in the whole header. */ + psf_binheader_readf (psf, "pb", 0, psf_header, NIST_HEADER_LENGTH) ; + + /* Header is a string, so make sure it is null terminated. */ + psf_header [NIST_HEADER_LENGTH] = 0 ; + + /* Now trim the header after the end marker. */ + if ((cptr = strstr (psf_header, "end_head"))) + { cptr += strlen ("end_head") + 1 ; + cptr [0] = 0 ; + } ; + + if (strstr (psf_header, bad_header) == psf_header) + return SFE_NIST_CRLF_CONVERISON ; + + /* Make sure its a NIST file. */ + if (strstr (psf_header, "NIST_1A\n") != psf_header) + { psf_log_printf (psf, "Not a NIST file.\n") ; + return SFE_NIST_BAD_HEADER ; + } ; + + if (sscanf (psf_header, "NIST_1A\n%d\n", &count) == 1) + psf->dataoffset = count ; + else + { psf_log_printf (psf, "*** Suspicious header length.\n") ; + psf->dataoffset = NIST_HEADER_LENGTH ; + } ; + + /* Determine sample encoding, start by assuming PCM. */ + encoding = SF_FORMAT_PCM_U8 ; + if ((cptr = strstr (psf_header, "sample_coding -s"))) + { sscanf (cptr, "sample_coding -s%d %63s", &count, str) ; + + if (strcmp (str, "pcm") == 0) + { /* Correct this later when we find out the bitwidth. */ + encoding = SF_FORMAT_PCM_U8 ; + } + else if (strcmp (str, "alaw") == 0) + encoding = SF_FORMAT_ALAW ; + else if ((strcmp (str, "ulaw") == 0) || (strcmp (str, "mu-law") == 0)) + encoding = SF_FORMAT_ULAW ; + else + { psf_log_printf (psf, "*** Unknown encoding : %s\n", str) ; + encoding = 0 ; + } ; + } ; + + if ((cptr = strstr (psf_header, "channel_count -i ")) != NULL) + sscanf (cptr, "channel_count -i %d", &(psf->sf.channels)) ; + + if ((cptr = strstr (psf_header, "sample_rate -i ")) != NULL) + sscanf (cptr, "sample_rate -i %d", &(psf->sf.samplerate)) ; + + if ((cptr = strstr (psf_header, "sample_count -i ")) != NULL) + { sscanf (cptr, "sample_count -i %ld", &samples) ; + psf->sf.frames = samples ; + } ; + + if ((cptr = strstr (psf_header, "sample_n_bytes -i ")) != NULL) + sscanf (cptr, "sample_n_bytes -i %d", &(psf->bytewidth)) ; + + /* Default endian-ness (for 8 bit, u-law, A-law. */ + psf->endian = (CPU_IS_BIG_ENDIAN) ? SF_ENDIAN_BIG : SF_ENDIAN_LITTLE ; + + /* This is where we figure out endian-ness. */ + if ((cptr = strstr (psf_header, "sample_byte_format -s")) + && sscanf (cptr, "sample_byte_format -s%u %8s", &bytes, str) == 2) + { + if (bytes != strlen (str)) + psf_log_printf (psf, "Weird sample_byte_format : strlen '%s' != %d\n", str, bytes) ; + + if (bytes > 1) + { if (psf->bytewidth == 0) + psf->bytewidth = bytes ; + else if (psf->bytewidth - bytes != 0) + { psf_log_printf (psf, "psf->bytewidth (%d) != bytes (%d)\n", psf->bytewidth, bytes) ; + return SFE_NIST_BAD_ENCODING ; + } ; + + if (strcmp (str, "01") == 0) + psf->endian = SF_ENDIAN_LITTLE ; + else if (strcmp (str, "10") == 0) + psf->endian = SF_ENDIAN_BIG ; + else + { psf_log_printf (psf, "Weird endian-ness : %s\n", str) ; + return SFE_NIST_BAD_ENCODING ; + } ; + } ; + + psf->sf.format |= psf->endian ; + } ; + + if ((cptr = strstr (psf_header, "sample_sig_bits -i "))) + sscanf (cptr, "sample_sig_bits -i %d", &bitwidth) ; + + if (strstr (psf_header, "channels_interleaved -s5 FALSE")) + { psf_log_printf (psf, "Non-interleaved data unsupported.\n", str) ; + return SFE_NIST_BAD_ENCODING ; + } ; + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + psf->datalength = psf->filelength - psf->dataoffset ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (encoding == SF_FORMAT_PCM_U8) + { switch (psf->bytewidth) + { case 1 : + psf->sf.format |= SF_FORMAT_PCM_S8 ; + break ; + + case 2 : + psf->sf.format |= SF_FORMAT_PCM_16 ; + break ; + + case 3 : + psf->sf.format |= SF_FORMAT_PCM_24 ; + break ; + + case 4 : + psf->sf.format |= SF_FORMAT_PCM_32 ; + break ; + + default : break ; + } ; + } + else if (encoding != 0) + psf->sf.format |= encoding ; + else + return SFE_UNIMPLEMENTED ; + + /* Sanitize psf->sf.format. */ + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_ULAW : + case SF_FORMAT_ALAW : + case SF_FORMAT_PCM_U8 : + /* Blank out endian bits. */ + psf->sf.format = SF_FORMAT_NIST | SF_CODEC (psf->sf.format) ; + break ; + + default : + break ; + } ; + + return 0 ; +} /* nist_read_header */ + +static int +nist_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + nist_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* nist_close */ + +/*========================================================================= +*/ + +static int +nist_write_header (SF_PRIVATE *psf, int calc_length) +{ const char *end_str ; + long samples ; + sf_count_t current ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + if (psf->endian == SF_ENDIAN_BIG) + end_str = "10" ; + else if (psf->endian == SF_ENDIAN_LITTLE) + end_str = "01" ; + else + end_str = "error" ; + + /* Clear the whole header. */ + memset (psf->header, 0, sizeof (psf->header)) ; + psf->headindex = 0 ; + + psf_fseek (psf, 0, SEEK_SET) ; + + psf_asciiheader_printf (psf, "NIST_1A\n 1024\n") ; + psf_asciiheader_printf (psf, "channel_count -i %d\n", psf->sf.channels) ; + psf_asciiheader_printf (psf, "sample_rate -i %d\n", psf->sf.samplerate) ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + psf_asciiheader_printf (psf, "sample_coding -s3 pcm\n") ; + psf_asciiheader_printf (psf, "sample_n_bytes -i 1\n" + "sample_sig_bits -i 8\n") ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + psf_asciiheader_printf (psf, "sample_n_bytes -i %d\n", psf->bytewidth) ; + psf_asciiheader_printf (psf, "sample_sig_bits -i %d\n", psf->bytewidth * 8) ; + psf_asciiheader_printf (psf, "sample_coding -s3 pcm\n" + "sample_byte_format -s%d %s\n", psf->bytewidth, end_str) ; + break ; + + case SF_FORMAT_ALAW : + psf_asciiheader_printf (psf, "sample_coding -s4 alaw\n") ; + psf_asciiheader_printf (psf, "sample_n_bytes -s1 1\n") ; + break ; + + case SF_FORMAT_ULAW : + psf_asciiheader_printf (psf, "sample_coding -s4 ulaw\n") ; + psf_asciiheader_printf (psf, "sample_n_bytes -s1 1\n") ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + psf->dataoffset = NIST_HEADER_LENGTH ; + + /* Fix this */ + samples = psf->sf.frames ; + psf_asciiheader_printf (psf, "sample_count -i %ld\n", samples) ; + psf_asciiheader_printf (psf, "end_head\n") ; + + /* Zero fill to dataoffset. */ + psf_binheader_writef (psf, "z", (size_t) (NIST_HEADER_LENGTH - psf->headindex)) ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* nist_write_header */ + diff --git a/src/ogg.c b/src/ogg.c new file mode 100644 index 0000000..d868fdb --- /dev/null +++ b/src/ogg.c @@ -0,0 +1,250 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2007 John ffitch +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <time.h> +#include <math.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if HAVE_EXTERNAL_LIBS + +#include <ogg/ogg.h> + +#include "ogg.h" + +static int ogg_close (SF_PRIVATE *psf) ; +static int ogg_stream_classify (SF_PRIVATE *psf, OGG_PRIVATE * odata) ; +static int ogg_page_classify (SF_PRIVATE * psf, const ogg_page * og) ; + +int +ogg_open (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = calloc (1, sizeof (OGG_PRIVATE)) ; + sf_count_t pos = psf_ftell (psf) ; + int error = 0 ; + + psf->container_data = odata ; + psf->container_close = ogg_close ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + if ((error = ogg_stream_classify (psf, odata)) != 0) + return error ; + + /* Reset everything to an initial state. */ + ogg_sync_clear (&odata->osync) ; + ogg_stream_clear (&odata->ostream) ; + psf_fseek (psf, pos, SEEK_SET) ; + + switch (psf->sf.format) + { case SF_FORMAT_OGG | SF_FORMAT_VORBIS : + return ogg_vorbis_open (psf) ; + + case SF_FORMAT_OGGFLAC : + free (psf->container_data) ; + psf->container_data = NULL ; + psf->container_close = NULL ; + return flac_open (psf) ; + +#if ENABLE_EXPERIMENTAL_CODE + case SF_FORMAT_OGG | SF_FORMAT_SPEEX : + return ogg_speex_open (psf) ; + + case SF_FORMAT_OGG | SF_FORMAT_PCM_16 : + case SF_FORMAT_OGG | SF_FORMAT_PCM_24 : + return ogg_pcm_open (psf) ; +#endif + + default : + break ; + } ; + + psf_log_printf (psf, "%s : mode should be SFM_READ or SFM_WRITE.\n", __func__) ; + return SFE_INTERNAL ; +} /* ogg_open */ + + +static int +ogg_close (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = psf->container_data ; + + ogg_sync_clear (&odata->osync) ; + ogg_stream_clear (&odata->ostream) ; + + return 0 ; +} /* ogg_close */ + +static int +ogg_stream_classify (SF_PRIVATE *psf, OGG_PRIVATE* odata) +{ char *buffer ; + int bytes, nn ; + + /* Call this here so it only gets called once, so no memory is leaked. */ + ogg_sync_init (&odata->osync) ; + + odata->eos = 0 ; + + /* Weird stuff happens if these aren't called. */ + ogg_stream_reset (&odata->ostream) ; + ogg_sync_reset (&odata->osync) ; + + /* + ** Grab some data at the head of the stream. We want the first page + ** (which is guaranteed to be small and only contain the Vorbis + ** stream initial header) We need the first page to get the stream + ** serialno. + */ + + /* Expose the buffer */ + buffer = ogg_sync_buffer (&odata->osync, 4096L) ; + + /* Grab the part of the header that has already been read. */ + memcpy (buffer, psf->header, psf->headindex) ; + bytes = psf->headindex ; + + /* Submit a 4k block to libvorbis' Ogg layer */ + bytes += psf_fread (buffer + psf->headindex, 1, 4096 - psf->headindex, psf) ; + ogg_sync_wrote (&odata->osync, bytes) ; + + /* Get the first page. */ + if ((nn = ogg_sync_pageout (&odata->osync, &odata->opage)) != 1) + { + /* Have we simply run out of data? If so, we're done. */ + if (bytes < 4096) + return 0 ; + + /* Error case. Must not be Vorbis data */ + psf_log_printf (psf, "Input does not appear to be an Ogg bitstream.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + /* + ** Get the serial number and set up the rest of decode. + ** Serialno first ; use it to set up a logical stream. + */ + ogg_stream_clear (&odata->ostream) ; + ogg_stream_init (&odata->ostream, ogg_page_serialno (&odata->opage)) ; + + if (ogg_stream_pagein (&odata->ostream, &odata->opage) < 0) + { /* Error ; stream version mismatch perhaps. */ + psf_log_printf (psf, "Error reading first page of Ogg bitstream data\n") ; + return SFE_MALFORMED_FILE ; + } ; + + if (ogg_stream_packetout (&odata->ostream, &odata->opacket) != 1) + { /* No page? must not be vorbis. */ + psf_log_printf (psf, "Error reading initial header packet.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + odata->codec = ogg_page_classify (psf, &odata->opage) ; + + switch (odata->codec) + { case OGG_VORBIS : + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; + return 0 ; + + case OGG_FLAC : + case OGG_FLAC0 : + psf->sf.format = SF_FORMAT_OGGFLAC ; + return 0 ; + + case OGG_SPEEX : + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ; + return 0 ; + + case OGG_PCM : + psf_log_printf (psf, "Detected Ogg/PCM data. This is not supported yet.\n") ; + return SFE_UNIMPLEMENTED ; + + default : + break ; + } ; + + psf_log_printf (psf, "This Ogg bitstream contains some uknown data type.\n") ; + return SFE_UNIMPLEMENTED ; +} /* ogg_stream_classify */ + +/*============================================================================== +*/ + +static struct +{ const char *str, *name ; + int len, codec ; +} codec_lookup [] = +{ { "Annodex", "Annodex", 8, OGG_ANNODEX }, + { "AnxData", "AnxData", 7, OGG_ANXDATA }, + { "\177FLAC", "Flac1", 5, OGG_FLAC }, + { "fLaC", "Flac0", 4, OGG_FLAC0 }, + { "PCM ", "PCM", 8, OGG_PCM }, + { "Speex", "Speex", 5, OGG_SPEEX }, + { "\001vorbis", "Vorbis", 7, OGG_VORBIS }, +} ; + +static int +ogg_page_classify (SF_PRIVATE * psf, const ogg_page * og) +{ int k, len ; + + for (k = 0 ; k < ARRAY_LEN (codec_lookup) ; k++) + { if (codec_lookup [k].len > og->body_len) + continue ; + + if (memcmp (og->body, codec_lookup [k].str, codec_lookup [k].len) == 0) + { psf_log_printf (psf, "Ogg stream data : %s\n", codec_lookup [k].name) ; + psf_log_printf (psf, "Stream serialno : %010D\n", (int64_t) ogg_page_serialno (og)) ; + return codec_lookup [k].codec ; + } ; + } ; + + len = og->body_len < 8 ? og->body_len : 8 ; + + psf_log_printf (psf, "Ogg_stream data : '") ; + for (k = 0 ; k < len ; k++) + psf_log_printf (psf, "%c", isprint (og->body [k]) ? og->body [k] : '.') ; + psf_log_printf (psf, "' ") ; + for (k = 0 ; k < len ; k++) + psf_log_printf (psf, " %02x", og->body [k] & 0xff) ; + psf_log_printf (psf, "\n") ; + + return 0 ; +} /* ogg_page_classify */ + +#else /* HAVE_EXTERNAL_LIBS */ + +int +ogg_open (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Vorbis support.\n") ; + return SFE_UNIMPLEMENTED ; +} /* ogg_open */ + +#endif diff --git a/src/ogg.h b/src/ogg.h new file mode 100644 index 0000000..88544bb --- /dev/null +++ b/src/ogg.h @@ -0,0 +1,52 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifndef SF_SRC_OGG_H + +enum +{ OGG_ANNODEX = 300, + OGG_ANXDATA, + OGG_FLAC, + OGG_FLAC0, + OGG_PCM, + OGG_SPEEX, + OGG_VORBIS, +} ; + +typedef struct +{ /* Sync and verify incoming physical bitstream */ + ogg_sync_state osync ; + /* Take physical pages, weld into a logical stream of packets */ + ogg_stream_state ostream ; + /* One Ogg bitstream page. Vorbis packets are inside */ + ogg_page opage ; + /* One raw packet of data for decode */ + ogg_packet opacket ; + int eos ; + int codec ; +} OGG_PRIVATE ; + + +#define readint(buf, base) (((buf [base + 3] << 24) & 0xff000000) | \ + ((buf [base + 2] <<16) & 0xff0000) | \ + ((buf [base + 1] << 8) & 0xff00) | \ + (buf [base] & 0xff)) + + + +#endif /* SF_SRC_OGG_H */ diff --git a/src/ogg_pcm.c b/src/ogg_pcm.c new file mode 100644 index 0000000..eb6a53e --- /dev/null +++ b/src/ogg_pcm.c @@ -0,0 +1,164 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <time.h> +#include <math.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS) + +#include <ogg/ogg.h> + +#include "ogg.h" + +typedef struct +{ int32_t serialno ; + + + void * state ; +} OPCM_PRIVATE ; + +static int opcm_read_header (SF_PRIVATE * psf) ; +static int opcm_close (SF_PRIVATE *psf) ; + +int +ogg_pcm_open (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = psf->container_data ; + OPCM_PRIVATE* opcm = calloc (1, sizeof (OPCM_PRIVATE)) ; + int error = 0 ; + + if (odata == NULL) + { psf_log_printf (psf, "%s : odata is NULL???\n", __func__) ; + return SFE_INTERNAL ; + } ; + + psf->codec_data = opcm ; + if (opcm == NULL) + return SFE_MALLOC_FAILED ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + { /* Call this here so it only gets called once, so no memory is leaked. */ + ogg_sync_init (&odata->osync) ; + + if ((error = opcm_read_header (psf))) + return error ; + +#if 0 + psf->read_short = opcm_read_s ; + psf->read_int = opcm_read_i ; + psf->read_float = opcm_read_f ; + psf->read_double = opcm_read_d ; + psf->sf.frames = opcm_length (psf) ; +#endif + } ; + + psf->codec_close = opcm_close ; + + if (psf->file.mode == SFM_WRITE) + { +#if 0 + /* Set the default opcm quality here. */ + vdata->quality = 0.4 ; + + psf->write_header = opcm_write_header ; + psf->write_short = opcm_write_s ; + psf->write_int = opcm_write_i ; + psf->write_float = opcm_write_f ; + psf->write_double = opcm_write_d ; +#endif + + psf->sf.frames = SF_COUNT_MAX ; /* Unknown really */ + psf->str_flags = SF_STR_ALLOW_START ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + +#if 0 + psf->seek = opcm_seek ; + psf->command = opcm_command ; +#endif + + /* FIXME, FIXME, FIXME : Hack these here for now and correct later. */ + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ; + psf->sf.sections = 1 ; + + psf->datalength = 1 ; + psf->dataoffset = 0 ; + /* End FIXME. */ + + return error ; +} /* ogg_pcm_open */ + +static int +opcm_read_header (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* opcm_read_header */ + +static int +opcm_close (SF_PRIVATE * UNUSED (psf)) +{ + + + return 0 ; +} /* opcm_close */ + + + +/* +encoded_speex_frames = (frames_per_packet * Packets) + = 1 * 272 + = 272 + +audio_samples = encoded_speex_frames * frame_size + = 272 * 640 + = 174080 + +duration = audio_samples / rate + = 174080 / 44100 + = 3.947 +*/ + +#else /* ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS */ + +int +ogg_pcm_open (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Speex support.\n") ; + return SFE_UNIMPLEMENTED ; +} /* ogg_pcm_open */ + +#endif diff --git a/src/ogg_speex.c b/src/ogg_speex.c new file mode 100644 index 0000000..f0ebb62 --- /dev/null +++ b/src/ogg_speex.c @@ -0,0 +1,425 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <time.h> +#include <math.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS) + +#include <ogg/ogg.h> + +#include <speex/speex.h> +#include <speex/speex_stereo.h> +#include <speex/speex_header.h> +#include <speex/speex_callbacks.h> + +#include "ogg.h" + +#define OGG_SPX_READ_SIZE 200 + +typedef struct +{ SpeexBits bits ; + + int32_t serialno ; + + int frame_size, granule_frame_size, nframes ; + int force_mode ; + + SpeexStereoState stereo ; + SpeexHeader header ; + + void * state ; +} SPX_PRIVATE ; + +static int spx_read_header (SF_PRIVATE * psf) ; +static int spx_close (SF_PRIVATE *psf) ; +static void *spx_header_read (SF_PRIVATE * psf, ogg_packet *op, spx_int32_t enh_enabled, int force_mode) ; +static void spx_print_comments (const char *comments, int length) ; + +int +ogg_speex_open (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = psf->container_data ; + SPX_PRIVATE* spx = calloc (1, sizeof (SPX_PRIVATE)) ; + int error = 0 ; + + if (odata == NULL) + { psf_log_printf (psf, "%s : odata is NULL???\n", __func__) ; + return SFE_INTERNAL ; + } ; + + psf->codec_data = spx ; + if (spx == NULL) + return SFE_MALLOC_FAILED ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_READ) + { /* Call this here so it only gets called once, so no memory is leaked. */ + ogg_sync_init (&odata->osync) ; + + if ((error = spx_read_header (psf))) + return error ; + +#if 0 + psf->read_short = spx_read_s ; + psf->read_int = spx_read_i ; + psf->read_float = spx_read_f ; + psf->read_double = spx_read_d ; + psf->sf.frames = spx_length (psf) ; +#endif + } ; + + psf->codec_close = spx_close ; + + if (psf->file.mode == SFM_WRITE) + { +#if 0 + /* Set the default spx quality here. */ + vdata->quality = 0.4 ; + + psf->write_header = spx_write_header ; + psf->write_short = spx_write_s ; + psf->write_int = spx_write_i ; + psf->write_float = spx_write_f ; + psf->write_double = spx_write_d ; +#endif + + psf->sf.frames = SF_COUNT_MAX ; /* Unknown really */ + psf->str_flags = SF_STR_ALLOW_START ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + +#if 0 + psf->seek = spx_seek ; + psf->command = spx_command ; +#endif + + /* FIXME, FIXME, FIXME : Hack these here for now and correct later. */ + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ; + psf->sf.sections = 1 ; + + psf->datalength = 1 ; + psf->dataoffset = 0 ; + /* End FIXME. */ + + return error ; +} /* ogg_speex_open */ + +#define le_short (x) (x) + +static int +spx_read_header (SF_PRIVATE * psf) +{ static SpeexStereoState STEREO_INIT = SPEEX_STEREO_STATE_INIT ; + + OGG_PRIVATE* odata = psf->container_data ; + SPX_PRIVATE* spx = psf->codec_data ; + + ogg_int64_t page_granule = 0 ; + int stream_init = 0 ; + int page_nb_packets = 0 ; + int packet_count = 0 ; + int enh_enabled = 1 ; + int force_mode = -1 ; + char * data ; + int nb_read ; + int lookahead ; + +printf ("%s %d\n", __func__, __LINE__) ; + + psf_log_printf (psf, "Speex header\n") ; + odata->eos = 0 ; + + /* Reset ogg stuff which has already been used in src/ogg.c. */ + ogg_stream_reset (&odata->ostream) ; + ogg_sync_reset (&odata->osync) ; + + /* Seek to start of stream. */ + psf_fseek (psf, 0, SEEK_SET) ; + + /* Initialize. */ + ogg_sync_init (&odata->osync) ; + speex_bits_init (&spx->bits) ; + + /* Set defaults. */ + psf->sf.channels = -1 ; + psf->sf.samplerate = 0 ; + spx->stereo = STEREO_INIT ; + + /* Get a pointer to the ogg buffer and read data into it. */ + data = ogg_sync_buffer (&odata->osync, OGG_SPX_READ_SIZE) ; + nb_read = psf_fread (data, 1, OGG_SPX_READ_SIZE, psf) ; + ogg_sync_wrote (&odata->osync, nb_read) ; + + /* Now we chew on Ogg packets. */ + while (ogg_sync_pageout (&odata->osync, &odata->opage) == 1) + { if (stream_init == 0) + { ogg_stream_init (&odata->ostream, ogg_page_serialno (&odata->opage)) ; + stream_init = 1 ; + } ; + + if (ogg_page_serialno (&odata->opage) != odata->ostream.serialno) + { /* so all streams are read. */ + ogg_stream_reset_serialno (&odata->ostream, ogg_page_serialno (&odata->opage)) ; + } ; + + /*Add page to the bitstream*/ + ogg_stream_pagein (&odata->ostream, &odata->opage) ; + page_granule = ogg_page_granulepos (&odata->opage) ; + page_nb_packets = ogg_page_packets (&odata->opage) ; + + /*Extract all available packets*/ + while (odata->eos == 0 && ogg_stream_packetout (&odata->ostream, &odata->opacket) == 1) + { if (odata->opacket.bytes >= 8 && memcmp (odata->opacket.packet, "Speex ", 8) == 0) + { spx->serialno = odata->ostream.serialno ; + } ; + + if (spx->serialno == -1 || odata->ostream.serialno != spx->serialno) + break ; + + if (packet_count == 0) + { spx->state = spx_header_read (psf, &odata->opacket, enh_enabled, force_mode) ; + if (! spx->state) + break ; + + speex_decoder_ctl (spx->state, SPEEX_GET_LOOKAHEAD, &lookahead) ; + if (spx->nframes == 0) + spx->nframes = 1 ; + } + else if (packet_count == 1) + { spx_print_comments ((const char*) odata->opacket.packet, odata->opacket.bytes) ; + } + else if (packet_count < 2 + spx->header.extra_headers) + { /* Ignore extra headers */ + } + packet_count ++ ; + } ; + } ; + + psf_log_printf (psf, "End\n") ; + + psf_log_printf (psf, "packet_count %d\n", packet_count) ; + psf_log_printf (psf, "page_nb_packets %d\n", page_nb_packets) ; + psf_log_printf (psf, "page_granule %lld\n", page_granule) ; + + return 0 ; +} /* spx_read_header */ + +static int +spx_close (SF_PRIVATE *psf) +{ SPX_PRIVATE* spx = psf->codec_data ; + + if (spx->state) + speex_decoder_destroy (spx->state) ; + + if (spx) + speex_bits_destroy (&spx->bits) ; + + return 0 ; +} /* spx_close */ + + + +static void * +spx_header_read (SF_PRIVATE * psf, ogg_packet *op, spx_int32_t enh_enabled, int force_mode) +{ SPX_PRIVATE* spx = psf->codec_data ; + void *st ; + const SpeexMode *mode ; + SpeexHeader *tmp_header ; + int modeID ; + SpeexCallback callback ; + + tmp_header = speex_packet_to_header ((char*) op->packet, op->bytes) ; + if (tmp_header == NULL) + { psf_log_printf (psf, "Cannot read Speex header\n") ; + return NULL ; + } ; + + memcpy (&spx->header, tmp_header, sizeof (spx->header)) ; + free (tmp_header) ; + tmp_header = NULL ; + + if (spx->header.mode >= SPEEX_NB_MODES || spx->header.mode < 0) + { psf_log_printf (psf, "Mode number %d does not (yet/any longer) exist in this version\n", spx->header.mode) ; + return NULL ; + } ; + + modeID = spx->header.mode ; + if (force_mode != -1) + modeID = force_mode ; + + mode = speex_lib_get_mode (modeID) ; + + if (spx->header.speex_version_id > 1) + { psf_log_printf (psf, "This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", spx->header.speex_version_id) ; + return NULL ; + } ; + + if (mode->bitstream_version < spx->header.mode_bitstream_version) + { psf_log_printf (psf, "The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n") ; + return NULL ; + } ; + + if (mode->bitstream_version > spx->header.mode_bitstream_version) + { psf_log_printf (psf, "The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n") ; + return NULL ; + } ; + + st = speex_decoder_init (mode) ; + if (!st) + { psf_log_printf (psf, "Decoder initialization failed.\n") ; + return NULL ; + } ; + + speex_decoder_ctl (st, SPEEX_SET_ENH, &enh_enabled) ; + speex_decoder_ctl (st, SPEEX_GET_FRAME_SIZE, &spx->frame_size) ; + spx->granule_frame_size = spx->frame_size ; + + if (!psf->sf.samplerate) + psf->sf.samplerate = spx->header.rate ; + /* Adjust rate if --force-* options are used */ + if (force_mode!=-1) + { if (spx->header.mode < force_mode) + { psf->sf.samplerate <<= (force_mode - spx->header.mode) ; + spx->granule_frame_size >>= (force_mode - spx->header.mode) ; + } ; + if (spx->header.mode > force_mode) + { psf->sf.samplerate >>= (spx->header.mode - force_mode) ; + spx->granule_frame_size <<= (spx->header.mode - force_mode) ; + } ; + } ; + + speex_decoder_ctl (st, SPEEX_SET_SAMPLING_RATE, &psf->sf.samplerate) ; + + spx->nframes = spx->header.frames_per_packet ; + + if (psf->sf.channels == -1) + psf->sf.channels = spx->header.nb_channels ; + + if (! (psf->sf.channels == 1)) + { psf->sf.channels = 2 ; + callback.callback_id = SPEEX_INBAND_STEREO ; + callback.func = speex_std_stereo_request_handler ; + callback.data = &spx->stereo ; + speex_decoder_ctl (st, SPEEX_SET_HANDLER, &callback) ; + } ; + + spx->header.speex_version [sizeof (spx->header.speex_version) - 1] = 0 ; + + psf_log_printf (psf, " Encoder ver : %s\n Frames/packet : %d\n", + spx->header.speex_version, spx->header.frames_per_packet) ; + + if (spx->header.bitrate > 0) + psf_log_printf (psf, " Bit rate : %d\n", spx->header.bitrate) ; + + psf_log_printf (psf, " Sample rate : %d\n Mode : %s\n VBR : %s\n Channels : %d\n", + psf->sf.samplerate, mode->modeName, (spx->header.vbr ? "yes" : "no"), psf->sf.channels) ; + + psf_log_printf (psf, " Extra headers : %d\n", spx->header.extra_headers) ; + + return st ; +} /* spx_header_read */ + + +static void +spx_print_comments (const char *c, int length) +{ + const char *end ; + int len, i, nb_fields ; + +printf ("%s %d\n", __func__, __LINE__) ; + if (length<8) + { fprintf (stderr, "Invalid/corrupted comments\n") ; + return ; + } + end = c + length ; + len = readint (c, 0) ; + c += 4 ; + if (len < 0 || c + len > end) + { fprintf (stderr, "Invalid/corrupted comments\n") ; + return ; + } + (void) fwrite (c, 1, len, stderr) ; + c += len ; + fprintf (stderr, "\n") ; + if (c + 4 > end) + { fprintf (stderr, "Invalid/corrupted comments\n") ; + return ; + } + nb_fields = readint (c, 0) ; + c += 4 ; + for (i = 0 ; i < nb_fields ; i++) + { if (c+4>end) + { fprintf (stderr, "Invalid/corrupted comments\n") ; + return ; + } ; + len = readint (c, 0) ; + c += 4 ; + if (len < 0 || c + len > end) + { fprintf (stderr, "Invalid/corrupted comments\n") ; + return ; + } + (void) fwrite (c, 1, len, stderr) ; + c += len ; + fprintf (stderr, "\n") ; + } ; + return ; +} /* spx_print_comments */ + + +/* +encoded_speex_frames = (frames_per_packet * Packets) + = 1 * 272 + = 272 + +audio_samples = encoded_speex_frames * frame_size + = 272 * 640 + = 174080 + +duration = audio_samples / rate + = 174080 / 44100 + = 3.947 +*/ + +#else /* ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS */ + +int +ogg_speex_open (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Speex support.\n") ; + return SFE_UNIMPLEMENTED ; +} /* ogg_speex_open */ + +#endif diff --git a/src/ogg_vorbis.c b/src/ogg_vorbis.c new file mode 100644 index 0000000..99223cd --- /dev/null +++ b/src/ogg_vorbis.c @@ -0,0 +1,1142 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2002-2005 Michael Smith <msmith@xiph.org> +** Copyright (C) 2007 John ffitch +** +** This program is free software ; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation ; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY ; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program ; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** Much of this code is based on the examples in libvorbis from the +** XIPHOPHORUS Company http://www.xiph.org/ which has a BSD-style Licence +** Copyright (c) 2002, Xiph.org Foundation +** +** Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions +** are met: +** +** - Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** +** - Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in the +** documentation and/or other materials provided with the distribution. +** +** - Neither the name of the Xiph.org Foundation nor the names of its +** contributors may be used to endorse or promote products derived from +** this software without specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION +** OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE, +** DATA, OR PROFITS ; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <time.h> +#include <math.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if HAVE_EXTERNAL_LIBS + +#include <ogg/ogg.h> +#include <vorbis/codec.h> +#include <vorbis/vorbisenc.h> + +#include "ogg.h" + +typedef int convert_func (int, void *, int, int, float **) ; + +static int vorbis_read_header (SF_PRIVATE *psf, int log_data) ; +static int vorbis_write_header (SF_PRIVATE *psf, int calc_length) ; +static int vorbis_close (SF_PRIVATE *psf) ; +static int vorbis_command (SF_PRIVATE *psf, int command, void *data, int datasize) ; +static sf_count_t vorbis_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; +static sf_count_t vorbis_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t vorbis_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t vorbis_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t vorbis_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t vorbis_read_sample (SF_PRIVATE *psf, void *ptr, sf_count_t lens, convert_func *transfn) ; +static sf_count_t vorbis_length (SF_PRIVATE *psf) ; + +typedef struct +{ int id ; + const char *name ; +} STR_PAIRS ; + +static STR_PAIRS vorbis_metatypes [] = +{ { SF_STR_TITLE, "Title" }, + { SF_STR_COPYRIGHT, "Copyright" }, + { SF_STR_SOFTWARE, "Software" }, + { SF_STR_ARTIST, "Artist" }, + { SF_STR_COMMENT, "Comment" }, + { SF_STR_DATE, "Date" }, + { SF_STR_ALBUM, "Album" }, + { SF_STR_LICENSE, "License" }, +} ; + +typedef struct +{ /* Count current location */ + sf_count_t loc ; + /* Struct that stores all the static vorbis bitstream settings */ + vorbis_info vinfo ; + /* Struct that stores all the bitstream user comments */ + vorbis_comment vcomment ; + /* Ventral working state for the packet->PCM decoder */ + vorbis_dsp_state vdsp ; + /* Local working space for packet->PCM decode */ + vorbis_block vblock ; + + /* Encoding quality in range [0.0, 1.0]. */ + double quality ; +} VORBIS_PRIVATE ; + +static int +vorbis_read_header (SF_PRIVATE *psf, int log_data) +{ + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + char *buffer ; + int bytes ; + int i, nn ; + + odata->eos = 0 ; + + /* Weird stuff happens if these aren't called. */ + ogg_stream_reset (&odata->ostream) ; + ogg_sync_reset (&odata->osync) ; + + /* + ** Grab some data at the head of the stream. We want the first page + ** (which is guaranteed to be small and only contain the Vorbis + ** stream initial header) We need the first page to get the stream + ** serialno. + */ + + /* Expose the buffer */ + buffer = ogg_sync_buffer (&odata->osync, 4096L) ; + + /* Grab the part of the header that has already been read. */ + memcpy (buffer, psf->header, psf->headindex) ; + bytes = psf->headindex ; + + /* Submit a 4k block to libvorbis' Ogg layer */ + bytes += psf_fread (buffer + psf->headindex, 1, 4096 - psf->headindex, psf) ; + ogg_sync_wrote (&odata->osync, bytes) ; + + /* Get the first page. */ + if ((nn = ogg_sync_pageout (&odata->osync, &odata->opage)) != 1) + { + /* Have we simply run out of data? If so, we're done. */ + if (bytes < 4096) + return 0 ; + + /* Error case. Must not be Vorbis data */ + psf_log_printf (psf, "Input does not appear to be an Ogg bitstream.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + /* + ** Get the serial number and set up the rest of decode. + ** Serialno first ; use it to set up a logical stream. + */ + ogg_stream_clear (&odata->ostream) ; + ogg_stream_init (&odata->ostream, ogg_page_serialno (&odata->opage)) ; + + if (ogg_stream_pagein (&odata->ostream, &odata->opage) < 0) + { /* Error ; stream version mismatch perhaps. */ + psf_log_printf (psf, "Error reading first page of Ogg bitstream data\n") ; + return SFE_MALFORMED_FILE ; + } ; + + if (ogg_stream_packetout (&odata->ostream, &odata->opacket) != 1) + { /* No page? must not be vorbis. */ + psf_log_printf (psf, "Error reading initial header packet.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + /* + ** This function (vorbis_read_header) gets called multiple times, so the OGG + ** and vorbis structs have to be cleared every time we pass through to + ** prevent memory leaks. + */ + vorbis_block_clear (&vdata->vblock) ; + vorbis_dsp_clear (&vdata->vdsp) ; + vorbis_comment_clear (&vdata->vcomment) ; + vorbis_info_clear (&vdata->vinfo) ; + + /* + ** Extract the initial header from the first page and verify that the + ** Ogg bitstream is in fact Vorbis data. + ** + ** I handle the initial header first instead of just having the code + ** read all three Vorbis headers at once because reading the initial + ** header is an easy way to identify a Vorbis bitstream and it's + ** useful to see that functionality seperated out. + */ + vorbis_info_init (&vdata->vinfo) ; + vorbis_comment_init (&vdata->vcomment) ; + + if (vorbis_synthesis_headerin (&vdata->vinfo, &vdata->vcomment, &odata->opacket) < 0) + { /* Error case ; not a vorbis header. */ + psf_log_printf (psf, "Found Vorbis in stream header, but vorbis_synthesis_headerin failed.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + /* + ** Common Ogg metadata fields? + ** TITLE, VERSION, ALBUM, TRACKNUMBER, ARTIST, PERFORMER, COPYRIGHT, LICENSE, + ** ORGANIZATION, DESCRIPTION, GENRE, DATE, LOCATION, CONTACT, ISRC, + */ + + if (log_data) + { int k ; + + for (k = 0 ; k < ARRAY_LEN (vorbis_metatypes) ; k++) + { char *dd ; + + dd = vorbis_comment_query (&vdata->vcomment, vorbis_metatypes [k].name, 0) ; + if (dd == NULL) + continue ; + psf_store_string (psf, vorbis_metatypes [k].id, dd) ; + } ; + } ; + + /* + ** At this point, we're sure we're Vorbis. We've set up the logical (Ogg) + ** bitstream decoder. Get the comment and codebook headers and set up the + ** Vorbis decoder. + ** + ** The next two packets in order are the comment and codebook headers. + ** They're likely large and may span multiple pages. Thus we reead + ** and submit data until we get our two pacakets, watching that no + ** pages are missing. If a page is missing, error out ; losing a + ** header page is the only place where missing data is fatal. + */ + + i = 0 ; /* Count of number of packets read */ + while (i < 2) + { int result = ogg_sync_pageout (&odata->osync, &odata->opage) ; + if (result == 0) + { /* Need more data */ + buffer = ogg_sync_buffer (&odata->osync, 4096) ; + bytes = psf_fread (buffer, 1, 4096, psf) ; + + if (bytes == 0 && i < 2) + { psf_log_printf (psf, "End of file before finding all Vorbis headers!\n") ; + return SFE_MALFORMED_FILE ; + } ; + nn = ogg_sync_wrote (&odata->osync, bytes) ; + } + else if (result == 1) + { /* + ** Don't complain about missing or corrupt data yet. We'll + ** catch it at the packet output phase. + ** + ** We can ignore any errors here as they'll also become apparent + ** at packetout. + */ + nn = ogg_stream_pagein (&odata->ostream, &odata->opage) ; + while (i < 2) + { result = ogg_stream_packetout (&odata->ostream, &odata->opacket) ; + if (result == 0) + break ; + if (result < 0) + { /* Uh oh ; data at some point was corrupted or missing! + ** We can't tolerate that in a header. Die. */ + psf_log_printf (psf, "Corrupt secondary header. Exiting.\n") ; + return SFE_MALFORMED_FILE ; + } ; + + vorbis_synthesis_headerin (&vdata->vinfo, &vdata->vcomment, &odata->opacket) ; + i++ ; + } ; + } ; + } ; + + if (log_data) + { int printed_metadata_msg = 0 ; + int k ; + + psf_log_printf (psf, "Bitstream is %d channel, %D Hz\n", vdata->vinfo.channels, vdata->vinfo.rate) ; + psf_log_printf (psf, "Encoded by : %s\n", vdata->vcomment.vendor) ; + + /* Throw the comments plus a few lines about the bitstream we're decoding. */ + for (k = 0 ; k < ARRAY_LEN (vorbis_metatypes) ; k++) + { char *dd ; + + dd = vorbis_comment_query (&vdata->vcomment, vorbis_metatypes [k].name, 0) ; + if (dd == NULL) + continue ; + + if (printed_metadata_msg == 0) + { psf_log_printf (psf, "Metadata :\n") ; + printed_metadata_msg = 1 ; + } ; + + psf_store_string (psf, vorbis_metatypes [k].id, dd) ; + psf_log_printf (psf, " %-10s : %s\n", vorbis_metatypes [k].name, dd) ; + } ; + + psf_log_printf (psf, "End\n") ; + } ; + + psf->sf.samplerate = vdata->vinfo.rate ; + psf->sf.channels = vdata->vinfo.channels ; + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; + + /* OK, got and parsed all three headers. Initialize the Vorbis + ** packet->PCM decoder. + ** Central decode state. */ + vorbis_synthesis_init (&vdata->vdsp, &vdata->vinfo) ; + + /* Local state for most of the decode so multiple block decodes can + ** proceed in parallel. We could init multiple vorbis_block structures + ** for vd here. */ + vorbis_block_init (&vdata->vdsp, &vdata->vblock) ; + + vdata->loc = 0 ; + + return 0 ; +} /* vorbis_read_header */ + +static int +vorbis_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + int k, ret ; + + vorbis_info_init (&vdata->vinfo) ; + + /* The style of encoding should be selectable here, VBR quality mode. */ + ret = vorbis_encode_init_vbr (&vdata->vinfo, psf->sf.channels, psf->sf.samplerate, vdata->quality) ; + +#if 0 + ret = vorbis_encode_init (&vdata->vinfo, psf->sf.channels, psf->sf.samplerate, -1, 128000, -1) ; /* average bitrate mode */ + ret = ( vorbis_encode_setup_managed (&vdata->vinfo, psf->sf.channels, + psf->sf.samplerate, -1, 128000, -1) || + vorbis_encode_ctl (&vdata->vinfo, OV_ECTL_RATEMANAGE_AVG, NULL) || + vorbis_encode_setup_init (&vdata->vinfo)) ; +#endif + if (ret) + return SFE_BAD_OPEN_FORMAT ; + + vdata->loc = 0 ; + + /* add a comment */ + vorbis_comment_init (&vdata->vcomment) ; + + vorbis_comment_add_tag (&vdata->vcomment, "ENCODER", "libsndfile") ; + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + { const char * name ; + + if (psf->strings [k].type == 0) + break ; + + switch (psf->strings [k].type) + { case SF_STR_TITLE : name = "TITLE" ; break ; + case SF_STR_COPYRIGHT : name = "COPYRIGHT" ; break ; + case SF_STR_SOFTWARE : name = "SOFTWARE" ; break ; + case SF_STR_ARTIST : name = "ARTIST" ; break ; + case SF_STR_COMMENT : name = "COMMENT" ; break ; + case SF_STR_DATE : name = "DATE" ; break ; + case SF_STR_ALBUM : name = "ALBUM" ; break ; + case SF_STR_LICENSE : name = "LICENSE" ; break ; + default : continue ; + } ; + + vorbis_comment_add_tag (&vdata->vcomment, name, psf->strings [k].str) ; + } ; + + /* set up the analysis state and auxiliary encoding storage */ + vorbis_analysis_init (&vdata->vdsp, &vdata->vinfo) ; + vorbis_block_init (&vdata->vdsp, &vdata->vblock) ; + + /* + ** Set up our packet->stream encoder. + ** Pick a random serial number ; that way we can more likely build + ** chained streams just by concatenation. + */ + + ogg_stream_init (&odata->ostream, psf_rand_int32 ()) ; + + /* Vorbis streams begin with three headers ; the initial header (with + most of the codec setup parameters) which is mandated by the Ogg + bitstream spec. The second header holds any comment fields. The + third header holds the bitstream codebook. We merely need to + make the headers, then pass them to libvorbis one at a time ; + libvorbis handles the additional Ogg bitstream constraints */ + + { ogg_packet header ; + ogg_packet header_comm ; + ogg_packet header_code ; + int result ; + + vorbis_analysis_headerout (&vdata->vdsp, &vdata->vcomment, &header, &header_comm, &header_code) ; + ogg_stream_packetin (&odata->ostream, &header) ; /* automatically placed in its own page */ + ogg_stream_packetin (&odata->ostream, &header_comm) ; + ogg_stream_packetin (&odata->ostream, &header_code) ; + + /* This ensures the actual + * audio data will start on a new page, as per spec + */ + while ((result = ogg_stream_flush (&odata->ostream, &odata->opage)) != 0) + { psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ; + psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ; + } ; + } + + return 0 ; +} /* vorbis_write_header */ + +static int +vorbis_close (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = psf->container_data ; + VORBIS_PRIVATE *vdata = psf->codec_data ; + + if (odata == NULL || vdata == NULL) + return 0 ; + + /* Clean up this logical bitstream ; before exit we shuld see if we're + ** followed by another [chained]. */ + + if (psf->file.mode == SFM_WRITE) + { + if (psf->write_current <= 0) + vorbis_write_header (psf, 0) ; + + vorbis_analysis_wrote (&vdata->vdsp, 0) ; + while (vorbis_analysis_blockout (&vdata->vdsp, &vdata->vblock) == 1) + { + + /* analysis, assume we want to use bitrate management */ + vorbis_analysis (&vdata->vblock, NULL) ; + vorbis_bitrate_addblock (&vdata->vblock) ; + + while (vorbis_bitrate_flushpacket (&vdata->vdsp, &odata->opacket)) + { /* weld the packet into the bitstream */ + ogg_stream_packetin (&odata->ostream, &odata->opacket) ; + + /* write out pages (if any) */ + while (!odata->eos) + { int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ; + if (result == 0) break ; + psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ; + psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ; + + /* this could be set above, but for illustrative purposes, I do + it here (to show that vorbis does know where the stream ends) */ + + if (ogg_page_eos (&odata->opage)) odata->eos = 1 ; + } + } + } + } + + /* ogg_page and ogg_packet structs always point to storage in + libvorbis. They are never freed or manipulated directly */ + + vorbis_block_clear (&vdata->vblock) ; + vorbis_dsp_clear (&vdata->vdsp) ; + vorbis_comment_clear (&vdata->vcomment) ; + vorbis_info_clear (&vdata->vinfo) ; + + return 0 ; +} /* vorbis_close */ + +int +ogg_vorbis_open (SF_PRIVATE *psf) +{ OGG_PRIVATE* odata = psf->container_data ; + VORBIS_PRIVATE* vdata = calloc (1, sizeof (VORBIS_PRIVATE)) ; + int error = 0 ; + + if (odata == NULL) + { psf_log_printf (psf, "%s : odata is NULL???\n", __func__) ; + return SFE_INTERNAL ; + } ; + + psf->codec_data = vdata ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + psf_log_printf (psf, "Vorbis library version : %s\n", vorbis_version_string ()) ; + + if (psf->file.mode == SFM_READ) + { /* Call this here so it only gets called once, so no memory is leaked. */ + ogg_sync_init (&odata->osync) ; + + if ((error = vorbis_read_header (psf, 1))) + return error ; + + psf->read_short = vorbis_read_s ; + psf->read_int = vorbis_read_i ; + psf->read_float = vorbis_read_f ; + psf->read_double = vorbis_read_d ; + psf->sf.frames = vorbis_length (psf) ; + } ; + + psf->codec_close = vorbis_close ; + if (psf->file.mode == SFM_WRITE) + { + /* Set the default vorbis quality here. */ + vdata->quality = 0.4 ; + + psf->write_header = vorbis_write_header ; + psf->write_short = vorbis_write_s ; + psf->write_int = vorbis_write_i ; + psf->write_float = vorbis_write_f ; + psf->write_double = vorbis_write_d ; + + psf->sf.frames = SF_COUNT_MAX ; /* Unknown really */ + psf->str_flags = SF_STR_ALLOW_START ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + psf->seek = vorbis_seek ; + psf->command = vorbis_command ; + + /* FIXME, FIXME, FIXME : Hack these here for now and correct later. */ + psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; + psf->sf.sections = 1 ; + + psf->datalength = 1 ; + psf->dataoffset = 0 ; + /* End FIXME. */ + + return error ; +} /* ogg_vorbis_open */ + +static int +vorbis_command (SF_PRIVATE *psf, int command, void * data, int datasize) +{ VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + + switch (command) + { case SFC_SET_VBR_ENCODING_QUALITY : + if (data == NULL || datasize != sizeof (double)) + return SF_FALSE ; + + if (psf->have_written) + return SF_FALSE ; + + vdata->quality = *((double *) data) ; + + /* Clip range. */ + vdata->quality = SF_MAX (0.0, SF_MIN (1.0, vdata->quality)) ; + + psf_log_printf (psf, "%s : Setting SFC_SET_VBR_ENCODING_QUALITY to %f.\n", __func__, vdata->quality) ; + return SF_TRUE ; + + default : + return SF_FALSE ; + } ; + + return SF_FALSE ; +} /* vorbis_command */ + +static int +vorbis_rnull (int samples, void *UNUSED (vptr), int UNUSED (off) , int channels, float **UNUSED (pcm)) +{ + return samples * channels ; +} /* vorbis_rnull */ + +static int +vorbis_rshort (int samples, void *vptr, int off, int channels, float **pcm) +{ + short *ptr = (short*) vptr + off ; + int i = 0, j, n ; + for (j = 0 ; j < samples ; j++) + for (n = 0 ; n < channels ; n++) + ptr [i++] = lrintf (pcm [n][j] * 32767.0f) ; + return i ; +} /* vorbis_rshort */ + +static int +vorbis_rint (int samples, void *vptr, int off, int channels, float **pcm) +{ + int *ptr = (int*) vptr + off ; + int i = 0, j, n ; + + for (j = 0 ; j < samples ; j++) + for (n = 0 ; n < channels ; n++) + ptr [i++] = lrintf (pcm [n][j] * 2147483647.0f) ; + return i ; +} /* vorbis_rint */ + +static int +vorbis_rfloat (int samples, void *vptr, int off, int channels, float **pcm) +{ + float *ptr = (float*) vptr + off ; + int i = 0, j, n ; + for (j = 0 ; j < samples ; j++) + for (n = 0 ; n < channels ; n++) + ptr [i++] = pcm [n][j] ; + return i ; +} /* vorbis_rfloat */ + +static int +vorbis_rdouble (int samples, void *vptr, int off, int channels, float **pcm) +{ + double *ptr = (double*) vptr + off ; + int i = 0, j, n ; + for (j = 0 ; j < samples ; j++) + for (n = 0 ; n < channels ; n++) + ptr [i++] = pcm [n][j] ; + return i ; +} /* vorbis_rdouble */ + + +static sf_count_t +vorbis_read_sample (SF_PRIVATE *psf, void *ptr, sf_count_t lens, convert_func *transfn) +{ + VORBIS_PRIVATE *vdata = psf->codec_data ; + OGG_PRIVATE *odata = psf->container_data ; + int len, samples, i = 0 ; + float **pcm ; + + len = lens / psf->sf.channels ; + + while ((samples = vorbis_synthesis_pcmout (&vdata->vdsp, &pcm)) > 0) + { if (samples > len) samples = len ; + i += transfn (samples, ptr, i, psf->sf.channels, pcm) ; + len -= samples ; + /* tell libvorbis how many samples we actually consumed */ + vorbis_synthesis_read (&vdata->vdsp, samples) ; + vdata->loc += samples ; + if (len == 0) + return i ; /* Is this necessary */ + } + goto start0 ; /* Jump into the nasty nest */ + while (len > 0 && !odata->eos) + { + while (len > 0 && !odata->eos) + { int result = ogg_sync_pageout (&odata->osync, &odata->opage) ; + if (result == 0) break ; /* need more data */ + if (result < 0) + { /* missing or corrupt data at this page position */ + psf_log_printf (psf, "Corrupt or missing data in bitstream ; continuing...\n") ; + } + else + { /* can safely ignore errors at this point */ + ogg_stream_pagein (&odata->ostream, &odata->opage) ; + start0: + while (1) + { result = ogg_stream_packetout (&odata->ostream, &odata->opacket) ; + if (result == 0) + break ; /* need more data */ + if (result < 0) + { /* missing or corrupt data at this page position */ + /* no reason to complain ; already complained above */ + } + else + { /* we have a packet. Decode it */ + if (vorbis_synthesis (&vdata->vblock, &odata->opacket) == 0) /* test for success! */ + vorbis_synthesis_blockin (&vdata->vdsp, &vdata->vblock) ; + /* + **pcm is a multichannel float vector. In stereo, for + example, pcm [0] is left, and pcm [1] is right. samples is + the size of each channel. Convert the float values + (-1.<=range<=1.) to whatever PCM format and write it out */ + + while ((samples = vorbis_synthesis_pcmout (&vdata->vdsp, &pcm)) > 0) + { if (samples>len) samples = len ; + i += transfn (samples, ptr, i, psf->sf.channels, pcm) ; + len -= samples ; + /* tell libvorbis how many samples we actually consumed */ + vorbis_synthesis_read (&vdata->vdsp, samples) ; + vdata->loc += samples ; + if (len == 0) + return i ; /* Is this necessary */ + } ; + } + } + if (ogg_page_eos (&odata->opage)) odata->eos = 1 ; + } + } + if (!odata->eos) + { char *buffer ; + int bytes ; + buffer = ogg_sync_buffer (&odata->osync, 4096) ; + bytes = psf_fread (buffer, 1, 4096, psf) ; + ogg_sync_wrote (&odata->osync, bytes) ; + if (bytes == 0) odata->eos = 1 ; + } + } + return i ; +} /* vorbis_read_sample */ + +static sf_count_t +vorbis_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t lens) +{ return vorbis_read_sample (psf, (void*) ptr, lens, vorbis_rshort) ; +} /* vorbis_read_s */ + +static sf_count_t +vorbis_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t lens) +{ return vorbis_read_sample (psf, (void*) ptr, lens, vorbis_rint) ; +} /* vorbis_read_i */ + +static sf_count_t +vorbis_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t lens) +{ return vorbis_read_sample (psf, (void*) ptr, lens, vorbis_rfloat) ; +} /* vorbis_read_f */ + +static sf_count_t +vorbis_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t lens) +{ return vorbis_read_sample (psf, (void*) ptr, lens, vorbis_rdouble) ; +} /* vorbis_read_d */ + +/*============================================================================== +*/ + +static void +vorbis_write_samples (SF_PRIVATE *psf, OGG_PRIVATE *odata, VORBIS_PRIVATE *vdata, int in_frames) +{ + vorbis_analysis_wrote (&vdata->vdsp, in_frames) ; + + /* + ** Vorbis does some data preanalysis, then divvies up blocks for + ** more involved (potentially parallel) processing. Get a single + ** block for encoding now. + */ + while (vorbis_analysis_blockout (&vdata->vdsp, &vdata->vblock) == 1) + { + /* analysis, assume we want to use bitrate management */ + vorbis_analysis (&vdata->vblock, NULL) ; + vorbis_bitrate_addblock (&vdata->vblock) ; + + while (vorbis_bitrate_flushpacket (&vdata->vdsp, &odata->opacket)) + { + /* weld the packet into the bitstream */ + ogg_stream_packetin (&odata->ostream, &odata->opacket) ; + + /* write out pages (if any) */ + while (!odata->eos) + { int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ; + if (result == 0) + break ; + psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ; + psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ; + + /* This could be set above, but for illustrative purposes, I do + ** it here (to show that vorbis does know where the stream ends) */ + if (ogg_page_eos (&odata->opage)) + odata->eos = 1 ; + } ; + } ; + } ; + + vdata->loc += in_frames ; +} /* vorbis_write_data */ + + +static sf_count_t +vorbis_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t lens) +{ + int i, m, j = 0 ; + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + int in_frames = lens / psf->sf.channels ; + float **buffer = vorbis_analysis_buffer (&vdata->vdsp, in_frames) ; + for (i = 0 ; i < in_frames ; i++) + for (m = 0 ; m < psf->sf.channels ; m++) + buffer [m][i] = (float) (ptr [j++]) / 32767.0f ; + + vorbis_write_samples (psf, odata, vdata, in_frames) ; + + return lens ; +} /* vorbis_write_s */ + +static sf_count_t +vorbis_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t lens) +{ int i, m, j = 0 ; + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + int in_frames = lens / psf->sf.channels ; + float **buffer = vorbis_analysis_buffer (&vdata->vdsp, in_frames) ; + for (i = 0 ; i < in_frames ; i++) + for (m = 0 ; m < psf->sf.channels ; m++) + buffer [m][i] = (float) (ptr [j++]) / 2147483647.0f ; + + vorbis_write_samples (psf, odata, vdata, in_frames) ; + + return lens ; +} /* vorbis_write_i */ + +static sf_count_t +vorbis_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t lens) +{ int i, m, j = 0 ; + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + int in_frames = lens / psf->sf.channels ; + float **buffer = vorbis_analysis_buffer (&vdata->vdsp, in_frames) ; + for (i = 0 ; i < in_frames ; i++) + for (m = 0 ; m < psf->sf.channels ; m++) + buffer [m][i] = ptr [j++] ; + + vorbis_write_samples (psf, odata, vdata, in_frames) ; + + return lens ; +} /* vorbis_write_f */ + +static sf_count_t +vorbis_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t lens) +{ int i, m, j = 0 ; + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + int in_frames = lens / psf->sf.channels ; + float **buffer = vorbis_analysis_buffer (&vdata->vdsp, in_frames) ; + for (i = 0 ; i < in_frames ; i++) + for (m = 0 ; m < psf->sf.channels ; m++) + buffer [m][i] = (float) ptr [j++] ; + + vorbis_write_samples (psf, odata, vdata, in_frames) ; + + return lens ; +} /* vorbis_write_d */ + +static sf_count_t +vorbis_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset) +{ + OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ; + VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ; + + if (odata == NULL || vdata == NULL) + return 0 ; + + if (offset < 0) + { psf->error = SFE_BAD_SEEK ; + return ((sf_count_t) -1) ; + } ; + + if (psf->file.mode == SFM_READ) + { sf_count_t target = offset - vdata->loc ; + + if (target < 0) + { /* 12 to allow for OggS bit */ + psf_fseek (psf, 12, SEEK_SET) ; + vorbis_read_header (psf, 0) ; /* Reset state */ + target = offset ; + } ; + + while (target > 0) + { sf_count_t m = target > 4096 ? 4096 : target ; + + /* + ** Need to multiply by channels here because the seek is done in + ** terms of frames and the read function is done in terms of + ** samples. + */ + vorbis_read_sample (psf, (void *) NULL, m * psf->sf.channels, vorbis_rnull) ; + + target -= m ; + } ; + + return vdata->loc ; + } ; + + return 0 ; +} /* vorbis_seek */ + +/*============================================================================== +** Most of the following code was snipped from Mike Smith's ogginfo utility +** which is part of vorbis-tools. +** Vorbis tools is released under the GPL but Mike has kindly allowed the +** following to be relicensed as LGPL for libsndfile. +*/ + +typedef struct +{ + int isillegal ; + int shownillegal ; + int isnew ; + int end ; + + uint32_t serial ; /* must be 32 bit unsigned */ + ogg_stream_state ostream ; + + vorbis_info vinfo ; + vorbis_comment vcomment ; + sf_count_t lastgranulepos ; + int doneheaders ; +} stream_processor ; + +typedef struct +{ + stream_processor *streams ; + int allocated ; + int used ; + int in_headers ; +} stream_set ; + +static stream_set * +create_stream_set (void) +{ stream_set *set = calloc (1, sizeof (stream_set)) ; + + set->streams = calloc (5, sizeof (stream_processor)) ; + set->allocated = 5 ; + set->used = 0 ; + + return set ; +} /* create_stream_set */ + +static void +vorbis_end (stream_processor *stream, sf_count_t * len) +{ *len += stream->lastgranulepos ; + vorbis_comment_clear (&stream->vcomment) ; + vorbis_info_clear (&stream->vinfo) ; +} /* vorbis_end */ + +static void +free_stream_set (stream_set *set, sf_count_t * len) +{ int i ; + + for (i = 0 ; i < set->used ; i++) + { if (!set->streams [i].end) + vorbis_end (&set->streams [i], len) ; + ogg_stream_clear (&set->streams [i].ostream) ; + } ; + + free (set->streams) ; + free (set) ; +} /* free_stream_set */ + +static int +streams_open (stream_set *set) +{ int i, res = 0 ; + + for (i = 0 ; i < set->used ; i++) + if (!set->streams [i].end) + res ++ ; + return res ; +} /* streams_open */ + +static stream_processor * +find_stream_processor (stream_set *set, ogg_page *page) +{ uint32_t serial = ogg_page_serialno (page) ; + int i, invalid = 0 ; + + stream_processor *stream ; + + for (i = 0 ; i < set->used ; i++) + { + if (serial == set->streams [i].serial) + { /* We have a match! */ + stream = & (set->streams [i]) ; + + set->in_headers = 0 ; + /* if we have detected EOS, then this can't occur here. */ + if (stream->end) + { stream->isillegal = 1 ; + return stream ; + } + + stream->isnew = 0 ; + stream->end = ogg_page_eos (page) ; + stream->serial = serial ; + return stream ; + } ; + } ; + + /* If there are streams open, and we've reached the end of the + ** headers, then we can't be starting a new stream. + ** XXX: might this sometimes catch ok streams if EOS flag is missing, + ** but the stream is otherwise ok? + */ + if (streams_open (set) && !set->in_headers) + invalid = 1 ; + + set->in_headers = 1 ; + + if (set->allocated < set->used) + stream = &set->streams [set->used] ; + else + { set->allocated += 5 ; + set->streams = realloc (set->streams, sizeof (stream_processor) * set->allocated) ; + stream = &set->streams [set->used] ; + } ; + + set->used++ ; + + stream->isnew = 1 ; + stream->isillegal = invalid ; + + { + int res ; + ogg_packet packet ; + + /* We end up processing the header page twice, but that's ok. */ + ogg_stream_init (&stream->ostream, serial) ; + ogg_stream_pagein (&stream->ostream, page) ; + res = ogg_stream_packetout (&stream->ostream, &packet) ; + if (res <= 0) + return NULL ; + else if (packet.bytes >= 7 && memcmp (packet.packet, "\x01vorbis", 7) == 0) + { + stream->lastgranulepos = 0 ; + vorbis_comment_init (&stream->vcomment) ; + vorbis_info_init (&stream->vinfo) ; + } ; + + res = ogg_stream_packetout (&stream->ostream, &packet) ; + + /* re-init, ready for processing */ + ogg_stream_clear (&stream->ostream) ; + ogg_stream_init (&stream->ostream, serial) ; + } + + stream->end = ogg_page_eos (page) ; + stream->serial = serial ; + + return stream ; +} /* find_stream_processor */ + +static int +vorbis_length_get_next_page (SF_PRIVATE *psf, ogg_sync_state * osync, ogg_page *page) +{ static const int CHUNK_SIZE = 4500 ; + + while (ogg_sync_pageout (osync, page) <= 0) + { char * buffer = ogg_sync_buffer (osync, CHUNK_SIZE) ; + int bytes = psf_fread (buffer, 1, 4096, psf) ; + + if (bytes <= 0) + { ogg_sync_wrote (osync, 0) ; + return 0 ; + } ; + + ogg_sync_wrote (osync, bytes) ; + } ; + + return 1 ; +} /* vorbis_length_get_next_page */ + +static sf_count_t +vorbis_length_aux (SF_PRIVATE * psf) +{ + ogg_sync_state osync ; + ogg_page page ; + sf_count_t len = 0 ; + stream_set *processors ; + + processors = create_stream_set () ; + if (processors == NULL) + return 0 ; // out of memory? + + ogg_sync_init (&osync) ; + + while (vorbis_length_get_next_page (psf, &osync, &page)) + { + stream_processor *p = find_stream_processor (processors, &page) ; + + if (!p) + { len = 0 ; + break ; + } ; + + if (p->isillegal && !p->shownillegal) + { + p->shownillegal = 1 ; + /* If it's a new stream, we want to continue processing this page + ** anyway to suppress additional spurious errors + */ + if (!p->isnew) continue ; + } ; + + if (!p->isillegal) + { ogg_packet packet ; + int header = 0 ; + + ogg_stream_pagein (&p->ostream, &page) ; + if (p->doneheaders < 3) + header = 1 ; + + while (ogg_stream_packetout (&p->ostream, &packet) > 0) + { + if (p->doneheaders < 3) + { if (vorbis_synthesis_headerin (&p->vinfo, &p->vcomment, &packet) < 0) + continue ; + p->doneheaders ++ ; + } ; + } ; + if (!header) + { sf_count_t gp = ogg_page_granulepos (&page) ; + if (gp > 0) p->lastgranulepos = gp ; + } ; + if (p->end) + { vorbis_end (p, &len) ; + p->isillegal = 1 ; + } ; + } ; + } ; + + ogg_sync_clear (&osync) ; + free_stream_set (processors, &len) ; + + return len ; +} /* vorbis_length_aux */ + +static sf_count_t +vorbis_length (SF_PRIVATE *psf) +{ sf_count_t length ; + int error ; + + if (psf->sf.seekable == 0) + return SF_COUNT_MAX ; + + psf_fseek (psf, 0, SEEK_SET) ; + length = vorbis_length_aux (psf) ; + + psf_fseek (psf, 12, SEEK_SET) ; + if ((error = vorbis_read_header (psf, 0)) != 0) + psf->error = error ; + + return length ; +} /* vorbis_length */ + +#else /* HAVE_EXTERNAL_LIBS */ + +int +ogg_vorbis_open (SF_PRIVATE *psf) +{ + psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Vorbis support.\n") ; + return SFE_UNIMPLEMENTED ; +} /* ogg_vorbis_open */ + +#endif diff --git a/src/paf.c b/src/paf.c new file mode 100644 index 0000000..7c7d527 --- /dev/null +++ b/src/paf.c @@ -0,0 +1,832 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define FAP_MARKER (MAKE_MARKER ('f', 'a', 'p', ' ')) +#define PAF_MARKER (MAKE_MARKER (' ', 'p', 'a', 'f')) + +/*------------------------------------------------------------------------------ +** Other defines. +*/ + +#define PAF_HEADER_LENGTH 2048 + +#define PAF24_SAMPLES_PER_BLOCK 10 +#define PAF24_BLOCK_SIZE 32 + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +typedef struct +{ int version ; + int endianness ; + int samplerate ; + int format ; + int channels ; + int source ; +} PAF_FMT ; + +typedef struct +{ int max_blocks, channels, samplesperblock, blocksize ; + int read_block, write_block, read_count, write_count ; + sf_count_t sample_count ; + int *samples ; + unsigned char *block ; +#if HAVE_FLEXIBLE_ARRAY + int data [] ; /* ISO C99 struct flexible array. */ +#else + int data [1] ; /* This is a hack and may not work. */ +#endif +} PAF24_PRIVATE ; + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int paf24_init (SF_PRIVATE *psf) ; + +static int paf_read_header (SF_PRIVATE *psf) ; +static int paf_write_header (SF_PRIVATE *psf, int calc_length) ; + +static sf_count_t paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +enum +{ PAF_PCM_16 = 0, + PAF_PCM_24 = 1, + PAF_PCM_S8 = 2 +} ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +paf_open (SF_PRIVATE *psf) +{ int subformat, error, endian ; + + psf->dataoffset = PAF_HEADER_LENGTH ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = paf_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_PAF) + return SFE_BAD_OPEN_FORMAT ; + + endian = SF_ENDIAN (psf->sf.format) ; + + /* PAF is by default big endian. */ + psf->endian = SF_ENDIAN_BIG ; + + if (endian == SF_ENDIAN_LITTLE || (CPU_IS_LITTLE_ENDIAN && (endian == SF_ENDIAN_CPU))) + psf->endian = SF_ENDIAN_LITTLE ; + + if ((error = paf_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = paf_write_header ; + } ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : + psf->bytewidth = 1 ; + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : + psf->bytewidth = 2 ; + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_24 : + /* No bytewidth because of whacky 24 bit encoding. */ + error = paf24_init (psf) ; + break ; + + default : return SFE_PAF_UNKNOWN_FORMAT ; + } ; + + return error ; +} /* paf_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +paf_read_header (SF_PRIVATE *psf) +{ PAF_FMT paf_fmt ; + int marker ; + + if (psf->filelength < PAF_HEADER_LENGTH) + return SFE_PAF_SHORT_HEADER ; + + memset (&paf_fmt, 0, sizeof (paf_fmt)) ; + psf_binheader_readf (psf, "pm", 0, &marker) ; + + psf_log_printf (psf, "Signature : '%M'\n", marker) ; + + if (marker == PAF_MARKER) + { psf_binheader_readf (psf, "E444444", &(paf_fmt.version), &(paf_fmt.endianness), + &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ; + } + else if (marker == FAP_MARKER) + { psf_binheader_readf (psf, "e444444", &(paf_fmt.version), &(paf_fmt.endianness), + &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ; + } + else + return SFE_PAF_NO_MARKER ; + + psf_log_printf (psf, "Version : %d\n", paf_fmt.version) ; + + if (paf_fmt.version != 0) + { psf_log_printf (psf, "*** Bad version number. should be zero.\n") ; + return SFE_PAF_VERSION ; + } ; + + psf_log_printf (psf, "Sample Rate : %d\n", paf_fmt.samplerate) ; + psf_log_printf (psf, "Channels : %d\n", paf_fmt.channels) ; + + psf_log_printf (psf, "Endianness : %d => ", paf_fmt.endianness) ; + if (paf_fmt.endianness) + { psf_log_printf (psf, "Little\n", paf_fmt.endianness) ; + psf->endian = SF_ENDIAN_LITTLE ; + } + else + { psf_log_printf (psf, "Big\n", paf_fmt.endianness) ; + psf->endian = SF_ENDIAN_BIG ; + } ; + + if (paf_fmt.channels > SF_MAX_CHANNELS) + return SFE_PAF_BAD_CHANNELS ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + psf_binheader_readf (psf, "p", (int) psf->dataoffset) ; + + psf->sf.samplerate = paf_fmt.samplerate ; + psf->sf.channels = paf_fmt.channels ; + + /* Only fill in type major. */ + psf->sf.format = SF_FORMAT_PAF ; + + psf_log_printf (psf, "Format : %d => ", paf_fmt.format) ; + + /* PAF is by default big endian. */ + psf->sf.format |= paf_fmt.endianness ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ; + + switch (paf_fmt.format) + { case PAF_PCM_S8 : + psf_log_printf (psf, "8 bit linear PCM\n") ; + psf->bytewidth = 1 ; + + psf->sf.format |= SF_FORMAT_PCM_S8 ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + psf->sf.frames = psf->datalength / psf->blockwidth ; + break ; + + case PAF_PCM_16 : + psf_log_printf (psf, "16 bit linear PCM\n") ; + psf->bytewidth = 2 ; + + psf->sf.format |= SF_FORMAT_PCM_16 ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + psf->sf.frames = psf->datalength / psf->blockwidth ; + break ; + + case PAF_PCM_24 : + psf_log_printf (psf, "24 bit linear PCM\n") ; + psf->bytewidth = 3 ; + + psf->sf.format |= SF_FORMAT_PCM_24 ; + + psf->blockwidth = 0 ; + psf->sf.frames = PAF24_SAMPLES_PER_BLOCK * psf->datalength / + (PAF24_BLOCK_SIZE * psf->sf.channels) ; + break ; + + default : psf_log_printf (psf, "Unknown\n") ; + return SFE_PAF_UNKNOWN_FORMAT ; + break ; + } ; + + psf_log_printf (psf, "Source : %d => ", paf_fmt.source) ; + + switch (paf_fmt.source) + { case 1 : psf_log_printf (psf, "Analog Recording\n") ; + break ; + case 2 : psf_log_printf (psf, "Digital Transfer\n") ; + break ; + case 3 : psf_log_printf (psf, "Multi-track Mixdown\n") ; + break ; + case 5 : psf_log_printf (psf, "Audio Resulting From DSP Processing\n") ; + break ; + default : psf_log_printf (psf, "Unknown\n") ; + break ; + } ; + + return 0 ; +} /* paf_read_header */ + +static int +paf_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ int paf_format ; + + /* PAF header already written so no need to re-write. */ + if (psf_ftell (psf) >= PAF_HEADER_LENGTH) + return 0 ; + + psf->dataoffset = PAF_HEADER_LENGTH ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + paf_format = PAF_PCM_S8 ; + break ; + + case SF_FORMAT_PCM_16 : + paf_format = PAF_PCM_16 ; + break ; + + case SF_FORMAT_PCM_24 : + paf_format = PAF_PCM_24 ; + break ; + + default : return SFE_PAF_UNKNOWN_FORMAT ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + if (psf->endian == SF_ENDIAN_BIG) + { /* Marker, version, endianness, samplerate */ + psf_binheader_writef (psf, "Em444", PAF_MARKER, 0, 0, psf->sf.samplerate) ; + /* format, channels, source */ + psf_binheader_writef (psf, "E444", paf_format, psf->sf.channels, 0) ; + } + else if (psf->endian == SF_ENDIAN_LITTLE) + { /* Marker, version, endianness, samplerate */ + psf_binheader_writef (psf, "em444", FAP_MARKER, 0, 1, psf->sf.samplerate) ; + /* format, channels, source */ + psf_binheader_writef (psf, "e444", paf_format, psf->sf.channels, 0) ; + } ; + + /* Zero fill to dataoffset. */ + psf_binheader_writef (psf, "z", (size_t) (psf->dataoffset - psf->headindex)) ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + return psf->error ; +} /* paf_write_header */ + +/*=============================================================================== +** 24 bit PAF files have a really weird encoding. +** For a mono file, 10 samples (each being 3 bytes) are packed into a 32 byte +** block. The 8 ints in this 32 byte block are then endian swapped (as ints) +** if necessary before being written to disk. +** For a stereo file, blocks of 10 samples from the same channel are encoded +** into 32 bytes as for the mono case. The 32 byte blocks are then interleaved +** on disk. +** Reading has to reverse the above process :-). +** Weird!!! +** +** The code below attempts to gain efficiency while maintaining readability. +*/ + +static int paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ; +static int paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ; +static int paf24_close (SF_PRIVATE *psf) ; + + +static int +paf24_init (SF_PRIVATE *psf) +{ PAF24_PRIVATE *ppaf24 ; + int paf24size ; + + paf24size = sizeof (PAF24_PRIVATE) + psf->sf.channels * + (PAF24_BLOCK_SIZE + PAF24_SAMPLES_PER_BLOCK * sizeof (int)) ; + + /* + ** Not exatly sure why this needs to be here but the tests + ** fail without it. + */ + psf->last_op = 0 ; + + if (! (psf->codec_data = calloc (1, paf24size))) + return SFE_MALLOC_FAILED ; + + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + ppaf24->channels = psf->sf.channels ; + ppaf24->samples = ppaf24->data ; + ppaf24->block = (unsigned char*) (ppaf24->data + PAF24_SAMPLES_PER_BLOCK * ppaf24->channels) ; + + ppaf24->blocksize = PAF24_BLOCK_SIZE * ppaf24->channels ; + ppaf24->samplesperblock = PAF24_SAMPLES_PER_BLOCK ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { paf24_read_block (psf, ppaf24) ; /* Read first block. */ + + psf->read_short = paf24_read_s ; + psf->read_int = paf24_read_i ; + psf->read_float = paf24_read_f ; + psf->read_double = paf24_read_d ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->write_short = paf24_write_s ; + psf->write_int = paf24_write_i ; + psf->write_float = paf24_write_f ; + psf->write_double = paf24_write_d ; + } ; + + psf->seek = paf24_seek ; + psf->container_close = paf24_close ; + + psf->filelength = psf_get_filelen (psf) ; + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->datalength % PAF24_BLOCK_SIZE) + { if (psf->file.mode == SFM_READ) + psf_log_printf (psf, "*** Warning : file seems to be truncated.\n") ; + ppaf24->max_blocks = psf->datalength / ppaf24->blocksize + 1 ; + } + else + ppaf24->max_blocks = psf->datalength / ppaf24->blocksize ; + + ppaf24->read_block = 0 ; + if (psf->file.mode == SFM_RDWR) + ppaf24->write_block = ppaf24->max_blocks ; + else + ppaf24->write_block = 0 ; + + psf->sf.frames = ppaf24->samplesperblock * ppaf24->max_blocks ; + ppaf24->sample_count = psf->sf.frames ; + + return 0 ; +} /* paf24_init */ + +static sf_count_t +paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) +{ PAF24_PRIVATE *ppaf24 ; + int newblock, newsample ; + + if (psf->codec_data == NULL) + { psf->error = SFE_INTERNAL ; + return PSF_SEEK_ERROR ; + } ; + + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + if (mode == SFM_READ && ppaf24->write_count > 0) + paf24_write_block (psf, ppaf24) ; + + newblock = offset / ppaf24->samplesperblock ; + newsample = offset % ppaf24->samplesperblock ; + + switch (mode) + { case SFM_READ : + if (psf->last_op == SFM_WRITE && ppaf24->write_count) + paf24_write_block (psf, ppaf24) ; + + psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ; + ppaf24->read_block = newblock ; + paf24_read_block (psf, ppaf24) ; + ppaf24->read_count = newsample ; + break ; + + case SFM_WRITE : + if (offset > ppaf24->sample_count) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (psf->last_op == SFM_WRITE && ppaf24->write_count) + paf24_write_block (psf, ppaf24) ; + + psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ; + ppaf24->write_block = newblock ; + paf24_read_block (psf, ppaf24) ; + ppaf24->write_count = newsample ; + break ; + + default : + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + return newblock * ppaf24->samplesperblock + newsample ; +} /* paf24_seek */ + +static int +paf24_close (SF_PRIVATE *psf) +{ PAF24_PRIVATE *ppaf24 ; + + if (psf->codec_data == NULL) + return 0 ; + + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (ppaf24->write_count > 0) + paf24_write_block (psf, ppaf24) ; + } ; + + return 0 ; +} /* paf24_close */ + +/*--------------------------------------------------------------------------- +*/ +static int +paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) +{ int k, channel ; + unsigned char *cptr ; + + ppaf24->read_block ++ ; + ppaf24->read_count = 0 ; + + if (ppaf24->read_block * ppaf24->samplesperblock > ppaf24->sample_count) + { memset (ppaf24->samples, 0, ppaf24->samplesperblock * ppaf24->channels) ; + return 1 ; + } ; + + /* Read the block. */ + if ((k = psf_fread (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, ppaf24->blocksize) ; + + + if (CPU_IS_LITTLE_ENDIAN) + { /* Do endian swapping if necessary. */ + if (psf->endian == SF_ENDIAN_BIG) + endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; + + /* Unpack block. */ + for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) + { channel = k % ppaf24->channels ; + cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; + ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ; + } ; + } + else + { /* Do endian swapping if necessary. */ + if (psf->endian == SF_ENDIAN_BIG) + endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; + + /* Unpack block. */ + for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) + { channel = k % ppaf24->channels ; + cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; + ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ; + } ; + } ; + + return 1 ; +} /* paf24_read_block */ + +static int +paf24_read (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, int *ptr, int len) +{ int count, total = 0 ; + + while (total < len) + { if (ppaf24->read_block * ppaf24->samplesperblock >= ppaf24->sample_count) + { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ; + return total ; + } ; + + if (ppaf24->read_count >= ppaf24->samplesperblock) + paf24_read_block (psf, ppaf24) ; + + count = (ppaf24->samplesperblock - ppaf24->read_count) * ppaf24->channels ; + count = (len - total > count) ? count : len - total ; + + memcpy (&(ptr [total]), &(ppaf24->samples [ppaf24->read_count * ppaf24->channels]), count * sizeof (int)) ; + total += count ; + ppaf24->read_count += count / ppaf24->channels ; + } ; + + return total ; +} /* paf24_read */ + +static sf_count_t +paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = paf24_read (psf, ppaf24, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = iptr [k] >> 16 ; + total += count ; + len -= readcount ; + } ; + return total ; +} /* paf24_read_s */ + +static sf_count_t +paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int total ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + total = paf24_read (psf, ppaf24, ptr, len) ; + + return total ; +} /* paf24_read_i */ + +static sf_count_t +paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = paf24_read (psf, ppaf24, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * iptr [k] ; + total += count ; + len -= readcount ; + } ; + return total ; +} /* paf24_read_f */ + +static sf_count_t +paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = paf24_read (psf, ppaf24, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * iptr [k] ; + total += count ; + len -= readcount ; + } ; + return total ; +} /* paf24_read_d */ + +/*--------------------------------------------------------------------------- +*/ + +static int +paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) +{ int k, nextsample, channel ; + unsigned char *cptr ; + + /* First pack block. */ + + if (CPU_IS_LITTLE_ENDIAN) + { for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) + { channel = k % ppaf24->channels ; + cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; + nextsample = ppaf24->samples [k] >> 8 ; + cptr [0] = nextsample ; + cptr [1] = nextsample >> 8 ; + cptr [2] = nextsample >> 16 ; + } ; + + /* Do endian swapping if necessary. */ + if (psf->endian == SF_ENDIAN_BIG) + endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; + } + else if (CPU_IS_BIG_ENDIAN) + { /* This is correct. */ + for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) + { channel = k % ppaf24->channels ; + cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; + nextsample = ppaf24->samples [k] >> 8 ; + cptr [0] = nextsample ; + cptr [1] = nextsample >> 8 ; + cptr [2] = nextsample >> 16 ; + } ; + if (psf->endian == SF_ENDIAN_BIG) + endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; + } ; + + /* Write block to disk. */ + if ((k = psf_fwrite (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, ppaf24->blocksize) ; + + if (ppaf24->sample_count < ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count) + ppaf24->sample_count = ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count ; + + if (ppaf24->write_count == ppaf24->samplesperblock) + { ppaf24->write_block ++ ; + ppaf24->write_count = 0 ; + } ; + + return 1 ; +} /* paf24_write_block */ + +static int +paf24_write (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, const int *ptr, int len) +{ int count, total = 0 ; + + while (total < len) + { count = (ppaf24->samplesperblock - ppaf24->write_count) * ppaf24->channels ; + + if (count > len - total) + count = len - total ; + + memcpy (&(ppaf24->samples [ppaf24->write_count * ppaf24->channels]), &(ptr [total]), count * sizeof (int)) ; + total += count ; + ppaf24->write_count += count / ppaf24->channels ; + + if (ppaf24->write_count >= ppaf24->samplesperblock) + paf24_write_block (psf, ppaf24) ; + } ; + + return total ; +} /* paf24_write */ + +static sf_count_t +paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = ptr [total + k] << 16 ; + count = paf24_write (psf, ppaf24, iptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + return total ; +} /* paf24_write_s */ + +static sf_count_t +paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int writecount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + while (len > 0) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = paf24_write (psf, ppaf24, ptr, writecount) ; + + total += count ; + len -= count ; + if (count != writecount) + break ; + } ; + + return total ; +} /* paf24_write_i */ + +static sf_count_t +paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = lrintf (normfact * ptr [total + k]) ; + count = paf24_write (psf, ppaf24, iptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* paf24_write_f */ + +static sf_count_t +paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ PAF24_PRIVATE *ppaf24 ; + int *iptr ; + int k, bufferlen, writecount = 0, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + ppaf24 = (PAF24_PRIVATE*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = lrint (normfact * ptr [total+k]) ; + count = paf24_write (psf, ppaf24, iptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* paf24_write_d */ + diff --git a/src/pcm.c b/src/pcm.c new file mode 100644 index 0000000..ec450bc --- /dev/null +++ b/src/pcm.c @@ -0,0 +1,2901 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/* Need to be able to handle 3 byte (24 bit) integers. So defined a +** type and use SIZEOF_TRIBYTE instead of (tribyte). +*/ + +typedef void tribyte ; + +#define SIZEOF_TRIBYTE 3 + +static sf_count_t pcm_read_sc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_uc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bes2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_les2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bet2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_let2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bei2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t pcm_read_lei2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; + +static sf_count_t pcm_read_sc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_uc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bes2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_les2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bet2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_let2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bei2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t pcm_read_lei2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; + +static sf_count_t pcm_read_sc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_uc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bes2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_les2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bet2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_let2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bei2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t pcm_read_lei2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; + +static sf_count_t pcm_read_sc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_uc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bes2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_les2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bet2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_let2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_bei2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; +static sf_count_t pcm_read_lei2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t pcm_write_s2sc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2uc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2bes (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2les (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2bet (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2let (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2bei (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t pcm_write_s2lei (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; + +static sf_count_t pcm_write_i2sc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2uc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2bes (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2les (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2bet (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2let (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2bei (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t pcm_write_i2lei (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; + +static sf_count_t pcm_write_f2sc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2uc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2bes (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2les (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2bet (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2let (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2bei (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t pcm_write_f2lei (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; + +static sf_count_t pcm_write_d2sc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2uc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2bes (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2les (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2bet (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2let (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2bei (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; +static sf_count_t pcm_write_d2lei (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +/*----------------------------------------------------------------------------------------------- +*/ + +enum +{ /* Char type for 8 bit files. */ + SF_CHARS_SIGNED = 200, + SF_CHARS_UNSIGNED = 201 +} ; + +/*----------------------------------------------------------------------------------------------- +*/ + +int +pcm_init (SF_PRIVATE *psf) +{ int chars = 0 ; + + if (psf->bytewidth == 0 || psf->sf.channels == 0) + { psf_log_printf (psf, "pcm_init : internal error : bytewitdh = %d, channels = %d\n", psf->bytewidth, psf->sf.channels) ; + return SFE_INTERNAL ; + } ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_PCM_S8) + chars = SF_CHARS_SIGNED ; + else if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_PCM_U8) + chars = SF_CHARS_UNSIGNED ; + + if (CPU_IS_BIG_ENDIAN) + psf->data_endswap = (psf->endian == SF_ENDIAN_BIG) ? SF_FALSE : SF_TRUE ; + else + psf->data_endswap = (psf->endian == SF_ENDIAN_LITTLE) ? SF_FALSE : SF_TRUE ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { switch (psf->bytewidth * 0x10000 + psf->endian + chars) + { case (0x10000 + SF_ENDIAN_BIG + SF_CHARS_SIGNED) : + case (0x10000 + SF_ENDIAN_LITTLE + SF_CHARS_SIGNED) : + psf->read_short = pcm_read_sc2s ; + psf->read_int = pcm_read_sc2i ; + psf->read_float = pcm_read_sc2f ; + psf->read_double = pcm_read_sc2d ; + break ; + case (0x10000 + SF_ENDIAN_BIG + SF_CHARS_UNSIGNED) : + case (0x10000 + SF_ENDIAN_LITTLE + SF_CHARS_UNSIGNED) : + psf->read_short = pcm_read_uc2s ; + psf->read_int = pcm_read_uc2i ; + psf->read_float = pcm_read_uc2f ; + psf->read_double = pcm_read_uc2d ; + break ; + + case (2 * 0x10000 + SF_ENDIAN_BIG) : + psf->read_short = pcm_read_bes2s ; + psf->read_int = pcm_read_bes2i ; + psf->read_float = pcm_read_bes2f ; + psf->read_double = pcm_read_bes2d ; + break ; + case (3 * 0x10000 + SF_ENDIAN_BIG) : + psf->read_short = pcm_read_bet2s ; + psf->read_int = pcm_read_bet2i ; + psf->read_float = pcm_read_bet2f ; + psf->read_double = pcm_read_bet2d ; + break ; + case (4 * 0x10000 + SF_ENDIAN_BIG) : + + psf->read_short = pcm_read_bei2s ; + psf->read_int = pcm_read_bei2i ; + psf->read_float = pcm_read_bei2f ; + psf->read_double = pcm_read_bei2d ; + break ; + + case (2 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->read_short = pcm_read_les2s ; + psf->read_int = pcm_read_les2i ; + psf->read_float = pcm_read_les2f ; + psf->read_double = pcm_read_les2d ; + break ; + case (3 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->read_short = pcm_read_let2s ; + psf->read_int = pcm_read_let2i ; + psf->read_float = pcm_read_let2f ; + psf->read_double = pcm_read_let2d ; + break ; + case (4 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->read_short = pcm_read_lei2s ; + psf->read_int = pcm_read_lei2i ; + psf->read_float = pcm_read_lei2f ; + psf->read_double = pcm_read_lei2d ; + break ; + default : + psf_log_printf (psf, "pcm.c returning SFE_UNIMPLEMENTED\nbytewidth %d endian %d\n", psf->bytewidth, psf->endian) ; + return SFE_UNIMPLEMENTED ; + } ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { switch (psf->bytewidth * 0x10000 + psf->endian + chars) + { case (0x10000 + SF_ENDIAN_BIG + SF_CHARS_SIGNED) : + case (0x10000 + SF_ENDIAN_LITTLE + SF_CHARS_SIGNED) : + psf->write_short = pcm_write_s2sc ; + psf->write_int = pcm_write_i2sc ; + psf->write_float = pcm_write_f2sc ; + psf->write_double = pcm_write_d2sc ; + break ; + case (0x10000 + SF_ENDIAN_BIG + SF_CHARS_UNSIGNED) : + case (0x10000 + SF_ENDIAN_LITTLE + SF_CHARS_UNSIGNED) : + psf->write_short = pcm_write_s2uc ; + psf->write_int = pcm_write_i2uc ; + psf->write_float = pcm_write_f2uc ; + psf->write_double = pcm_write_d2uc ; + break ; + + case (2 * 0x10000 + SF_ENDIAN_BIG) : + psf->write_short = pcm_write_s2bes ; + psf->write_int = pcm_write_i2bes ; + psf->write_float = pcm_write_f2bes ; + psf->write_double = pcm_write_d2bes ; + break ; + + case (3 * 0x10000 + SF_ENDIAN_BIG) : + psf->write_short = pcm_write_s2bet ; + psf->write_int = pcm_write_i2bet ; + psf->write_float = pcm_write_f2bet ; + psf->write_double = pcm_write_d2bet ; + break ; + + case (4 * 0x10000 + SF_ENDIAN_BIG) : + psf->write_short = pcm_write_s2bei ; + psf->write_int = pcm_write_i2bei ; + psf->write_float = pcm_write_f2bei ; + psf->write_double = pcm_write_d2bei ; + break ; + + case (2 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->write_short = pcm_write_s2les ; + psf->write_int = pcm_write_i2les ; + psf->write_float = pcm_write_f2les ; + psf->write_double = pcm_write_d2les ; + break ; + + case (3 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->write_short = pcm_write_s2let ; + psf->write_int = pcm_write_i2let ; + psf->write_float = pcm_write_f2let ; + psf->write_double = pcm_write_d2let ; + break ; + + case (4 * 0x10000 + SF_ENDIAN_LITTLE) : + psf->write_short = pcm_write_s2lei ; + psf->write_int = pcm_write_i2lei ; + psf->write_float = pcm_write_f2lei ; + psf->write_double = pcm_write_d2lei ; + break ; + + default : + psf_log_printf (psf, "pcm.c returning SFE_UNIMPLEMENTED\nbytewidth %s endian %d\n", psf->bytewidth, psf->endian) ; + return SFE_UNIMPLEMENTED ; + } ; + + } ; + + if (psf->filelength > psf->dataoffset) + { psf->datalength = (psf->dataend > 0) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + } + else + psf->datalength = 0 ; + + psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ; + + return 0 ; +} /* pcm_init */ + +/*============================================================================== +*/ + +static inline void +sc2s_array (signed char *src, int count, short *dest) +{ while (--count >= 0) + { dest [count] = src [count] << 8 ; + } ; +} /* sc2s_array */ + +static inline void +uc2s_array (unsigned char *src, int count, short *dest) +{ while (--count >= 0) + { dest [count] = (((short) src [count]) - 0x80) << 8 ; + } ; +} /* uc2s_array */ + +static inline void +let2s_array (tribyte *src, int count, short *dest) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + dest [count] = LET2H_SHORT_PTR (ucptr) ; + } ; +} /* let2s_array */ + +static inline void +bet2s_array (tribyte *src, int count, short *dest) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + dest [count] = BET2H_SHORT_PTR (ucptr) ; + } ; +} /* bet2s_array */ + +static inline void +lei2s_array (int *src, int count, short *dest) +{ int value ; + + while (--count >= 0) + { value = LEI2H_INT (src [count]) ; + dest [count] = value >> 16 ; + } ; +} /* lei2s_array */ + +static inline void +bei2s_array (int *src, int count, short *dest) +{ int value ; + + while (--count >= 0) + { value = BEI2H_INT (src [count]) ; + dest [count] = value >> 16 ; + } ; +} /* bei2s_array */ + +/*-------------------------------------------------------------------------- +*/ + +static inline void +sc2i_array (signed char *src, int count, int *dest) +{ while (--count >= 0) + { dest [count] = ((int) src [count]) << 24 ; + } ; +} /* sc2i_array */ + +static inline void +uc2i_array (unsigned char *src, int count, int *dest) +{ while (--count >= 0) + { dest [count] = (((int) src [count]) - 128) << 24 ; + } ; +} /* uc2i_array */ + +static inline void +bes2i_array (short *src, int count, int *dest) +{ short value ; + + while (--count >= 0) + { value = BES2H_SHORT (src [count]) ; + dest [count] = value << 16 ; + } ; +} /* bes2i_array */ + +static inline void +les2i_array (short *src, int count, int *dest) +{ short value ; + + while (--count >= 0) + { value = LES2H_SHORT (src [count]) ; + dest [count] = value << 16 ; + } ; +} /* les2i_array */ + +static inline void +bet2i_array (tribyte *src, int count, int *dest) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + dest [count] = BET2H_INT_PTR (ucptr) ; + } ; +} /* bet2i_array */ + +static inline void +let2i_array (tribyte *src, int count, int *dest) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + dest [count] = LET2H_INT_PTR (ucptr) ; + } ; +} /* let2i_array */ + +/*-------------------------------------------------------------------------- +*/ + +static inline void +sc2f_array (signed char *src, int count, float *dest, float normfact) +{ while (--count >= 0) + dest [count] = ((float) src [count]) * normfact ; +} /* sc2f_array */ + +static inline void +uc2f_array (unsigned char *src, int count, float *dest, float normfact) +{ while (--count >= 0) + dest [count] = (((int) src [count]) - 128) * normfact ; +} /* uc2f_array */ + +static inline void +les2f_array (short *src, int count, float *dest, float normfact) +{ short value ; + + while (--count >= 0) + { value = src [count] ; + value = LES2H_SHORT (value) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* les2f_array */ + +static inline void +bes2f_array (short *src, int count, float *dest, float normfact) +{ short value ; + + while (--count >= 0) + { value = src [count] ; + value = BES2H_SHORT (value) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* bes2f_array */ + +static inline void +let2f_array (tribyte *src, int count, float *dest, float normfact) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = LET2H_INT_PTR (ucptr) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* let2f_array */ + +static inline void +bet2f_array (tribyte *src, int count, float *dest, float normfact) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = BET2H_INT_PTR (ucptr) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* bet2f_array */ + +static inline void +lei2f_array (int *src, int count, float *dest, float normfact) +{ int value ; + + while (--count >= 0) + { value = src [count] ; + value = LEI2H_INT (value) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* lei2f_array */ + +static inline void +bei2f_array (int *src, int count, float *dest, float normfact) +{ int value ; + + while (--count >= 0) + { value = src [count] ; + value = BEI2H_INT (value) ; + dest [count] = ((float) value) * normfact ; + } ; +} /* bei2f_array */ + +/*-------------------------------------------------------------------------- +*/ + +static inline void +sc2d_array (signed char *src, int count, double *dest, double normfact) +{ while (--count >= 0) + dest [count] = ((double) src [count]) * normfact ; +} /* sc2d_array */ + +static inline void +uc2d_array (unsigned char *src, int count, double *dest, double normfact) +{ while (--count >= 0) + dest [count] = (((int) src [count]) - 128) * normfact ; +} /* uc2d_array */ + +static inline void +les2d_array (short *src, int count, double *dest, double normfact) +{ short value ; + + while (--count >= 0) + { value = src [count] ; + value = LES2H_SHORT (value) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* les2d_array */ + +static inline void +bes2d_array (short *src, int count, double *dest, double normfact) +{ short value ; + + while (--count >= 0) + { value = src [count] ; + value = BES2H_SHORT (value) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* bes2d_array */ + +static inline void +let2d_array (tribyte *src, int count, double *dest, double normfact) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = LET2H_INT_PTR (ucptr) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* let2d_array */ + +static inline void +bet2d_array (tribyte *src, int count, double *dest, double normfact) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) src) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = (ucptr [0] << 24) | (ucptr [1] << 16) | (ucptr [2] << 8) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* bet2d_array */ + +static inline void +lei2d_array (int *src, int count, double *dest, double normfact) +{ int value ; + + while (--count >= 0) + { value = src [count] ; + value = LEI2H_INT (value) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* lei2d_array */ + +static inline void +bei2d_array (int *src, int count, double *dest, double normfact) +{ int value ; + + while (--count >= 0) + { value = src [count] ; + value = BEI2H_INT (value) ; + dest [count] = ((double) value) * normfact ; + } ; +} /* bei2d_array */ + +/*-------------------------------------------------------------------------- +*/ + +static inline void +s2sc_array (const short *src, signed char *dest, int count) +{ while (--count >= 0) + dest [count] = src [count] >> 8 ; +} /* s2sc_array */ + +static inline void +s2uc_array (const short *src, unsigned char *dest, int count) +{ while (--count >= 0) + dest [count] = (src [count] >> 8) + 0x80 ; +} /* s2uc_array */ + +static inline void +s2let_array (const short *src, tribyte *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + ucptr [0] = 0 ; + ucptr [1] = src [count] ; + ucptr [2] = src [count] >> 8 ; + } ; +} /* s2let_array */ + +static inline void +s2bet_array (const short *src, tribyte *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + ucptr [2] = 0 ; + ucptr [1] = src [count] ; + ucptr [0] = src [count] >> 8 ; + } ; +} /* s2bet_array */ + +static inline void +s2lei_array (const short *src, int *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 4 * count ; + while (--count >= 0) + { ucptr -= 4 ; + ucptr [0] = 0 ; + ucptr [1] = 0 ; + ucptr [2] = src [count] ; + ucptr [3] = src [count] >> 8 ; + } ; +} /* s2lei_array */ + +static inline void +s2bei_array (const short *src, int *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 4 * count ; + while (--count >= 0) + { ucptr -= 4 ; + ucptr [0] = src [count] >> 8 ; + ucptr [1] = src [count] ; + ucptr [2] = 0 ; + ucptr [3] = 0 ; + } ; +} /* s2bei_array */ + +/*-------------------------------------------------------------------------- +*/ + +static inline void +i2sc_array (const int *src, signed char *dest, int count) +{ while (--count >= 0) + dest [count] = (src [count] >> 24) ; +} /* i2sc_array */ + +static inline void +i2uc_array (const int *src, unsigned char *dest, int count) +{ while (--count >= 0) + dest [count] = ((src [count] >> 24) + 128) ; +} /* i2uc_array */ + +static inline void +i2bes_array (const int *src, short *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 2 * count ; + while (--count >= 0) + { ucptr -= 2 ; + ucptr [0] = src [count] >> 24 ; + ucptr [1] = src [count] >> 16 ; + } ; +} /* i2bes_array */ + +static inline void +i2les_array (const int *src, short *dest, int count) +{ unsigned char *ucptr ; + + ucptr = ((unsigned char*) dest) + 2 * count ; + while (--count >= 0) + { ucptr -= 2 ; + ucptr [0] = src [count] >> 16 ; + ucptr [1] = src [count] >> 24 ; + } ; +} /* i2les_array */ + +static inline void +i2let_array (const int *src, tribyte *dest, int count) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) dest) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = src [count] >> 8 ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + } ; +} /* i2let_array */ + +static inline void +i2bet_array (const int *src, tribyte *dest, int count) +{ unsigned char *ucptr ; + int value ; + + ucptr = ((unsigned char*) dest) + 3 * count ; + while (--count >= 0) + { ucptr -= 3 ; + value = src [count] >> 8 ; + ucptr [2] = value ; + ucptr [1] = value >> 8 ; + ucptr [0] = value >> 16 ; + } ; +} /* i2bet_array */ + +/*=============================================================================================== +*/ + +static sf_count_t +pcm_read_sc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + sc2s_array (psf->u.scbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_sc2s */ + +static sf_count_t +pcm_read_uc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + uc2s_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_uc2s */ + +static sf_count_t +pcm_read_bes2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int total ; + + total = psf_fread (ptr, sizeof (short), len, psf) ; + if (CPU_IS_LITTLE_ENDIAN) + endswap_short_array (ptr, len) ; + + return total ; +} /* pcm_read_bes2s */ + +static sf_count_t +pcm_read_les2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int total ; + + total = psf_fread (ptr, sizeof (short), len, psf) ; + if (CPU_IS_BIG_ENDIAN) + endswap_short_array (ptr, len) ; + + return total ; +} /* pcm_read_les2s */ + +static sf_count_t +pcm_read_bet2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + bet2s_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bet2s */ + +static sf_count_t +pcm_read_let2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + let2s_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_let2s */ + +static sf_count_t +pcm_read_bei2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + bei2s_array (psf->u.ibuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bei2s */ + +static sf_count_t +pcm_read_lei2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + lei2s_array (psf->u.ibuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_lei2s */ + +/*----------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +pcm_read_sc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + sc2i_array (psf->u.scbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_sc2i */ + +static sf_count_t +pcm_read_uc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + uc2i_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_uc2i */ + +static sf_count_t +pcm_read_bes2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + bes2i_array (psf->u.sbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bes2i */ + +static sf_count_t +pcm_read_les2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + les2i_array (psf->u.sbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_les2i */ + +static sf_count_t +pcm_read_bet2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + bet2i_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bet2i */ + +static sf_count_t +pcm_read_let2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + let2i_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_let2i */ + +static sf_count_t +pcm_read_bei2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int total ; + + total = psf_fread (ptr, sizeof (int), len, psf) ; + if (CPU_IS_LITTLE_ENDIAN) + endswap_int_array (ptr, len) ; + + return total ; +} /* pcm_read_bei2i */ + +static sf_count_t +pcm_read_lei2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int total ; + + total = psf_fread (ptr, sizeof (int), len, psf) ; + if (CPU_IS_BIG_ENDIAN) + endswap_int_array (ptr, len) ; + + return total ; +} /* pcm_read_lei2i */ + +/*----------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +pcm_read_sc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + sc2f_array (psf->u.scbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_sc2f */ + +static sf_count_t +pcm_read_uc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + uc2f_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_uc2f */ + +static sf_count_t +pcm_read_bes2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + bes2f_array (psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bes2f */ + +static sf_count_t +pcm_read_les2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + les2f_array (psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_les2f */ + +static sf_count_t +pcm_read_bet2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + /* Special normfactor because tribyte value is read into an int. */ + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80000000) : 1.0 / 256.0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + bet2f_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bet2f */ + +static sf_count_t +pcm_read_let2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + /* Special normfactor because tribyte value is read into an int. */ + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80000000) : 1.0 / 256.0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + let2f_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_let2f */ + +static sf_count_t +pcm_read_bei2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80000000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + bei2f_array (psf->u.ibuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bei2f */ + +static sf_count_t +pcm_read_lei2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80000000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + lei2f_array (psf->u.ibuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_lei2f */ + +/*----------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +pcm_read_sc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + sc2d_array (psf->u.scbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_sc2d */ + +static sf_count_t +pcm_read_uc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + uc2d_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_uc2d */ + +static sf_count_t +pcm_read_bes2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + bes2d_array (psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bes2d */ + +static sf_count_t +pcm_read_les2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + les2d_array (psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_les2d */ + +static sf_count_t +pcm_read_bet2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80000000) : 1.0 / 256.0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + bet2d_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bet2d */ + +static sf_count_t +pcm_read_let2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + /* Special normfactor because tribyte value is read into an int. */ + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80000000) : 1.0 / 256.0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + let2d_array ((tribyte*) (psf->u.ucbuf), readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_let2d */ + +static sf_count_t +pcm_read_bei2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80000000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + bei2d_array (psf->u.ibuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_bei2d */ + +static sf_count_t +pcm_read_lei2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80000000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + lei2d_array (psf->u.ibuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* pcm_read_lei2d */ + +/*=============================================================================================== +**----------------------------------------------------------------------------------------------- +**=============================================================================================== +*/ + +static sf_count_t +pcm_write_s2sc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2sc_array (ptr + total, psf->u.scbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2sc */ + +static sf_count_t +pcm_write_s2uc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2uc_array (ptr + total, psf->u.ucbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2uc */ + +static sf_count_t +pcm_write_s2bes (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (CPU_IS_BIG_ENDIAN) + return psf_fwrite (ptr, sizeof (short), len, psf) ; + else + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + endswap_short_copy (psf->u.sbuf, ptr + total, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2bes */ + +static sf_count_t +pcm_write_s2les (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (CPU_IS_LITTLE_ENDIAN) + return psf_fwrite (ptr, sizeof (short), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + endswap_short_copy (psf->u.sbuf, ptr + total, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2les */ + +static sf_count_t +pcm_write_s2bet (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2bet_array (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2bet */ + +static sf_count_t +pcm_write_s2let (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2let_array (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2let */ + +static sf_count_t +pcm_write_s2bei (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2bei_array (ptr + total, psf->u.ibuf, bufferlen) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2bei */ + +static sf_count_t +pcm_write_s2lei (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2lei_array (ptr + total, psf->u.ibuf, bufferlen) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_s2lei */ + +/*----------------------------------------------------------------------------------------------- +*/ + +static sf_count_t +pcm_write_i2sc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2sc_array (ptr + total, psf->u.scbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2sc */ + +static sf_count_t +pcm_write_i2uc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2uc_array (ptr + total, psf->u.ucbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2uc */ + +static sf_count_t +pcm_write_i2bes (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2bes_array (ptr + total, psf->u.sbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2bes */ + +static sf_count_t +pcm_write_i2les (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2les_array (ptr + total, psf->u.sbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2les */ + +static sf_count_t +pcm_write_i2bet (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2bet_array (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2bet */ + +static sf_count_t +pcm_write_i2let (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2let_array (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2les */ + +static sf_count_t +pcm_write_i2bei (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (CPU_IS_BIG_ENDIAN) + return psf_fwrite (ptr, sizeof (int), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + endswap_int_copy (psf->u.ibuf, ptr + total, bufferlen) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2bei */ + +static sf_count_t +pcm_write_i2lei (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + if (CPU_IS_LITTLE_ENDIAN) + return psf_fwrite (ptr, sizeof (int), len, psf) ; + + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + endswap_int_copy (psf->u.ibuf, ptr + total, bufferlen) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_i2lei */ + +/*------------------------------------------------------------------------------ +**============================================================================== +**------------------------------------------------------------------------------ +*/ + +static void +f2sc_array (const float *src, signed char *dest, int count, int normalize) +{ float normfact ; + + normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + { dest [count] = lrintf (src [count] * normfact) ; + } ; +} /* f2sc_array */ + +static void +f2sc_clip_array (const float *src, signed char *dest, int count, int normalize) +{ float normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x1000000) ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { dest [count] = 127 ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { dest [count] = -128 ; + continue ; + } ; + + dest [count] = lrintf (scaled_value) >> 24 ; + } ; +} /* f2sc_clip_array */ + +static sf_count_t +pcm_write_f2sc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, signed char *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2sc_clip_array : f2sc_array ; + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.scbuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2sc */ + +/*============================================================================== +*/ + +static void +f2uc_array (const float *src, unsigned char *dest, int count, int normalize) +{ float normfact ; + + normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + { dest [count] = lrintf (src [count] * normfact) + 128 ; + } ; +} /* f2uc_array */ + +static void +f2uc_clip_array (const float *src, unsigned char *dest, int count, int normalize) +{ float normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x1000000) ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { dest [count] = 0xFF ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { dest [count] = 0 ; + continue ; + } ; + + dest [count] = (lrintf (scaled_value) >> 24) + 128 ; + } ; +} /* f2uc_clip_array */ + +static sf_count_t +pcm_write_f2uc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, unsigned char *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2uc_clip_array : f2uc_array ; + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ucbuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2uc */ + +/*============================================================================== +*/ + +static void +f2bes_array (const float *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + short value ; + + normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + value = lrintf (src [count] * normfact) ; + ucptr [1] = value ; + ucptr [0] = value >> 8 ; + } ; +} /* f2bes_array */ + +static void +f2bes_clip_array (const float *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x10000) ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [1] = 0xFF ; + ucptr [0] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [1] = 0x00 ; + ucptr [0] = 0x80 ; + continue ; + } ; + + value = lrintf (scaled_value) ; + ucptr [1] = value >> 16 ; + ucptr [0] = value >> 24 ; + } ; +} /* f2bes_clip_array */ + +static sf_count_t +pcm_write_f2bes (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, short *t, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2bes_clip_array : f2bes_array ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.sbuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2bes */ + +/*============================================================================== +*/ + +static void +f2les_array (const float *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + int value ; + + normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + value = lrintf (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + } ; +} /* f2les_array */ + +static void +f2les_clip_array (const float *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x10000) ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x80 ; + continue ; + } ; + + value = lrintf (scaled_value) ; + ucptr [0] = value >> 16 ; + ucptr [1] = value >> 24 ; + } ; +} /* f2les_clip_array */ + +static sf_count_t +pcm_write_f2les (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, short *t, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2les_clip_array : f2les_array ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.sbuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2les */ + +/*============================================================================== +*/ + +static void +f2let_array (const float *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + int value ; + + normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + value = lrintf (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + } ; +} /* f2let_array */ + +static void +f2let_clip_array (const float *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x100) ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [2] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x80 ; + continue ; + } ; + + value = lrintf (scaled_value) ; + ucptr [0] = value >> 8 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 24 ; + } ; +} /* f2let_clip_array */ + +static sf_count_t +pcm_write_f2let (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, tribyte *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2let_clip_array : f2let_array ; + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2let */ + +/*============================================================================== +*/ + +static void +f2bet_array (const float *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + int value ; + + normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + value = lrintf (src [count] * normfact) ; + ucptr [0] = value >> 16 ; + ucptr [1] = value >> 8 ; + ucptr [2] = value ; + } ; +} /* f2bet_array */ + +static void +f2bet_clip_array (const float *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x100) ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0x7F ; + ucptr [1] = 0xFF ; + ucptr [2] = 0xFF ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x80 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x00 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [0] = value >> 24 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 8 ; + } ; +} /* f2bet_clip_array */ + +static sf_count_t +pcm_write_f2bet (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, tribyte *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2bet_clip_array : f2bet_array ; + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2bet */ + +/*============================================================================== +*/ + +static void +f2bei_array (const float *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + int value ; + + normfact = normalize ? (1.0 * 0x7FFFFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + while (--count >= 0) + { ucptr -= 4 ; + value = lrintf (src [count] * normfact) ; + ucptr [0] = value >> 24 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 8 ; + ucptr [3] = value ; + } ; +} /* f2bei_array */ + +static void +f2bei_clip_array (const float *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= 1.0 * 0x7FFFFFFF) + { ucptr [0] = 0x7F ; + ucptr [1] = 0xFF ; + ucptr [2] = 0xFF ; + ucptr [3] = 0xFF ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x80 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x00 ; + ucptr [3] = 0x00 ; + continue ; + } ; + + value = lrintf (scaled_value) ; + ucptr [0] = value >> 24 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 8 ; + ucptr [3] = value ; + } ; +} /* f2bei_clip_array */ + +static sf_count_t +pcm_write_f2bei (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, int *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2bei_clip_array : f2bei_array ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ibuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2bei */ + +/*============================================================================== +*/ + +static void +f2lei_array (const float *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact ; + int value ; + + normfact = normalize ? (1.0 * 0x7FFFFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + value = lrintf (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + ucptr [3] = value >> 24 ; + } ; +} /* f2lei_array */ + +static void +f2lei_clip_array (const float *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + float normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [2] = 0xFF ; + ucptr [3] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x00 ; + ucptr [3] = 0x80 ; + continue ; + } ; + + value = lrintf (scaled_value) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + ucptr [3] = value >> 24 ; + } ; +} /* f2lei_clip_array */ + +static sf_count_t +pcm_write_f2lei (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ void (*convert) (const float *, int *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? f2lei_clip_array : f2lei_array ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ibuf, bufferlen, psf->norm_float) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_f2lei */ + +/*============================================================================== +*/ + +static void +d2sc_array (const double *src, signed char *dest, int count, int normalize) +{ double normfact ; + + normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + { dest [count] = lrint (src [count] * normfact) ; + } ; +} /* d2sc_array */ + +static void +d2sc_clip_array (const double *src, signed char *dest, int count, int normalize) +{ double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x1000000) ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { dest [count] = 127 ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { dest [count] = -128 ; + continue ; + } ; + + dest [count] = lrintf (scaled_value) >> 24 ; + } ; +} /* d2sc_clip_array */ + +static sf_count_t +pcm_write_d2sc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, signed char *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2sc_clip_array : d2sc_array ; + bufferlen = ARRAY_LEN (psf->u.scbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.scbuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2sc */ + +/*============================================================================== +*/ + +static void +d2uc_array (const double *src, unsigned char *dest, int count, int normalize) +{ double normfact ; + + normfact = normalize ? (1.0 * 0x7F) : 1.0 ; + + while (--count >= 0) + { dest [count] = lrint (src [count] * normfact) + 128 ; + } ; +} /* d2uc_array */ + +static void +d2uc_clip_array (const double *src, unsigned char *dest, int count, int normalize) +{ double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x1000000) ; + + while (--count >= 0) + { scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { dest [count] = 255 ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { dest [count] = 0 ; + continue ; + } ; + + dest [count] = (lrint (src [count] * normfact) >> 24) + 128 ; + } ; +} /* d2uc_clip_array */ + +static sf_count_t +pcm_write_d2uc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, unsigned char *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2uc_clip_array : d2uc_array ; + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ucbuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.ucbuf, sizeof (unsigned char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2uc */ + +/*============================================================================== +*/ + +static void +d2bes_array (const double *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + short value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + value = lrint (src [count] * normfact) ; + ucptr [1] = value ; + ucptr [0] = value >> 8 ; + } ; +} /* d2bes_array */ + +static void +d2bes_clip_array (const double *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + double normfact, scaled_value ; + int value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x10000) ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [1] = 0xFF ; + ucptr [0] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [1] = 0x00 ; + ucptr [0] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [1] = value >> 16 ; + ucptr [0] = value >> 24 ; + } ; +} /* d2bes_clip_array */ + +static sf_count_t +pcm_write_d2bes (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, short *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2bes_clip_array : d2bes_array ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.sbuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2bes */ + +/*============================================================================== +*/ + +static void +d2les_array (const double *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + short value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + value = lrint (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + } ; +} /* d2les_array */ + +static void +d2les_clip_array (const double *src, short *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x10000) ; + ucptr = ((unsigned char*) dest) + 2 * count ; + + while (--count >= 0) + { ucptr -= 2 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [0] = value >> 16 ; + ucptr [1] = value >> 24 ; + } ; +} /* d2les_clip_array */ + +static sf_count_t +pcm_write_d2les (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, short *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2les_clip_array : d2les_array ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.sbuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2les */ + +/*============================================================================== +*/ + +static void +d2let_array (const double *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + value = lrint (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + } ; +} /* d2let_array */ + +static void +d2let_clip_array (const double *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x100) ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [2] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [0] = value >> 8 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 24 ; + } ; +} /* d2let_clip_array */ + +static sf_count_t +pcm_write_d2let (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, tribyte *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2let_clip_array : d2let_array ; + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2let */ + +/*============================================================================== +*/ + +static void +d2bet_array (const double *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + value = lrint (src [count] * normfact) ; + ucptr [2] = value ; + ucptr [1] = value >> 8 ; + ucptr [0] = value >> 16 ; + } ; +} /* d2bet_array */ + +static void +d2bet_clip_array (const double *src, tribyte *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : (1.0 * 0x100) ; + ucptr = ((unsigned char*) dest) + 3 * count ; + + while (--count >= 0) + { ucptr -= 3 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [2] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [0] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [2] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [0] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [2] = value >> 8 ; + ucptr [1] = value >> 16 ; + ucptr [0] = value >> 24 ; + } ; +} /* d2bet_clip_array */ + +static sf_count_t +pcm_write_d2bet (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, tribyte *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2bet_clip_array : d2bet_array ; + bufferlen = sizeof (psf->u.ucbuf) / SIZEOF_TRIBYTE ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, (tribyte*) (psf->u.ucbuf), bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.ucbuf, SIZEOF_TRIBYTE, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2bet */ + +/*============================================================================== +*/ + +static void +d2bei_array (const double *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFFFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + value = lrint (src [count] * normfact) ; + ucptr [0] = value >> 24 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 8 ; + ucptr [3] = value ; + } ; +} /* d2bei_array */ + +static void +d2bei_clip_array (const double *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [3] = 0xFF ; + ucptr [2] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [0] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [3] = 0x00 ; + ucptr [2] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [0] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [0] = value >> 24 ; + ucptr [1] = value >> 16 ; + ucptr [2] = value >> 8 ; + ucptr [3] = value ; + } ; +} /* d2bei_clip_array */ + +static sf_count_t +pcm_write_d2bei (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, int *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2bei_clip_array : d2bei_array ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ibuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2bei */ + +/*============================================================================== +*/ + +static void +d2lei_array (const double *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact ; + + normfact = normalize ? (1.0 * 0x7FFFFFFF) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + value = lrint (src [count] * normfact) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + ucptr [3] = value >> 24 ; + } ; +} /* d2lei_array */ + +static void +d2lei_clip_array (const double *src, int *dest, int count, int normalize) +{ unsigned char *ucptr ; + int value ; + double normfact, scaled_value ; + + normfact = normalize ? (8.0 * 0x10000000) : 1.0 ; + ucptr = ((unsigned char*) dest) + 4 * count ; + + while (--count >= 0) + { ucptr -= 4 ; + scaled_value = src [count] * normfact ; + if (CPU_CLIPS_POSITIVE == 0 && scaled_value >= (1.0 * 0x7FFFFFFF)) + { ucptr [0] = 0xFF ; + ucptr [1] = 0xFF ; + ucptr [2] = 0xFF ; + ucptr [3] = 0x7F ; + continue ; + } ; + if (CPU_CLIPS_NEGATIVE == 0 && scaled_value <= (-8.0 * 0x10000000)) + { ucptr [0] = 0x00 ; + ucptr [1] = 0x00 ; + ucptr [2] = 0x00 ; + ucptr [3] = 0x80 ; + continue ; + } ; + + value = lrint (scaled_value) ; + ucptr [0] = value ; + ucptr [1] = value >> 8 ; + ucptr [2] = value >> 16 ; + ucptr [3] = value >> 24 ; + } ; +} /* d2lei_clip_array */ + +static sf_count_t +pcm_write_d2lei (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ void (*convert) (const double *, int *, int, int) ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + convert = (psf->add_clipping) ? d2lei_clip_array : d2lei_array ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + convert (ptr + total, psf->u.ibuf, bufferlen, psf->norm_double) ; + writecount = psf_fwrite (psf->u.ibuf, sizeof (int), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* pcm_write_d2lei */ + diff --git a/src/pvf.c b/src/pvf.c new file mode 100644 index 0000000..4ea24b6 --- /dev/null +++ b/src/pvf.c @@ -0,0 +1,188 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ + +#define PVF1_MARKER (MAKE_MARKER ('P', 'V', 'F', '1')) + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int pvf_close (SF_PRIVATE *psf) ; + +static int pvf_write_header (SF_PRIVATE *psf, int calc_length) ; +static int pvf_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +pvf_open (SF_PRIVATE *psf) +{ int subformat ; + int error = 0 ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = pvf_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_PVF) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_BIG ; + + if (pvf_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = pvf_write_header ; + } ; + + psf->container_close = pvf_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : /* 8-bit linear PCM. */ + case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ + case SF_FORMAT_PCM_32 : /* 32-bit linear PCM. */ + error = pcm_init (psf) ; + break ; + + default : break ; + } ; + + return error ; +} /* pvf_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +pvf_close (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* pvf_close */ + +static int +pvf_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ sf_count_t current ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + snprintf ((char*) psf->header, sizeof (psf->header), "PVF1\n%d %d %d\n", + psf->sf.channels, psf->sf.samplerate, psf->bytewidth * 8) ; + + psf->headindex = strlen ((char*) psf->header) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* pvf_write_header */ + +static int +pvf_read_header (SF_PRIVATE *psf) +{ char buffer [32] ; + int marker, channels, samplerate, bitwidth ; + + psf_binheader_readf (psf, "pmj", 0, &marker, 1) ; + psf_log_printf (psf, "%M\n", marker) ; + + if (marker != PVF1_MARKER) + return SFE_PVF_NO_PVF1 ; + + /* Grab characters up until a newline which is replaced by an EOS. */ + psf_binheader_readf (psf, "G", buffer, sizeof (buffer)) ; + + if (sscanf (buffer, "%d %d %d", &channels, &samplerate, &bitwidth) != 3) + return SFE_PVF_BAD_HEADER ; + + psf_log_printf (psf, " Channels : %d\n Sample rate : %d\n Bit width : %d\n", + channels, samplerate, bitwidth) ; + + psf->sf.channels = channels ; + psf->sf.samplerate = samplerate ; + + switch (bitwidth) + { case 8 : + psf->sf.format = SF_FORMAT_PVF | SF_FORMAT_PCM_S8 ; + psf->bytewidth = 1 ; + break ; + + case 16 : + psf->sf.format = SF_FORMAT_PVF | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + case 32 : + psf->sf.format = SF_FORMAT_PVF | SF_FORMAT_PCM_32 ; + psf->bytewidth = 4 ; + break ; + + default : + return SFE_PVF_BAD_BITWIDTH ; + } ; + + psf->dataoffset = psf_ftell (psf) ; + psf_log_printf (psf, " Data Offset : %D\n", psf->dataoffset) ; + + psf->endian = SF_ENDIAN_BIG ; + + psf->datalength = psf->filelength - psf->dataoffset ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if (! psf->sf.frames && psf->blockwidth) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + return 0 ; +} /* pvf_read_header */ diff --git a/src/raw.c b/src/raw.c new file mode 100644 index 0000000..e5dc49e --- /dev/null +++ b/src/raw.c @@ -0,0 +1,104 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> + +#include "sndfile.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +raw_open (SF_PRIVATE *psf) +{ int subformat, error = SFE_NO_ERROR ; + + subformat = SF_CODEC (psf->sf.format) ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + + if (CPU_IS_BIG_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU)) + psf->endian = SF_ENDIAN_BIG ; + else if (CPU_IS_LITTLE_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU)) + psf->endian = SF_ENDIAN_LITTLE ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + psf->dataoffset = 0 ; + psf->datalength = psf->filelength ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_U8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + case SF_FORMAT_GSM610 : + error = gsm610_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + case SF_FORMAT_DWVW_12 : + error = dwvw_init (psf, 12) ; + break ; + + case SF_FORMAT_DWVW_16 : + error = dwvw_init (psf, 16) ; + break ; + + case SF_FORMAT_DWVW_24 : + error = dwvw_init (psf, 24) ; + break ; + + case SF_FORMAT_VOX_ADPCM : + error = vox_adpcm_init (psf) ; + break ; + /* Lite remove end */ + + default : return SFE_BAD_OPEN_FORMAT ; + } ; + + return error ; +} /* raw_open */ diff --git a/src/rf64.c b/src/rf64.c new file mode 100644 index 0000000..d40bfab --- /dev/null +++ b/src/rf64.c @@ -0,0 +1,716 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2009 Uli Franke <cls@nebadje.org> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** This format documented at: +** http://www.sr.se/utveckling/tu/bwf/prog/RF_64v1_4.pdf +** +** But this may be a better reference: +** http://www.ebu.ch/CMSimages/en/tec_doc_t3306-2007_tcm6-42570.pdf +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues. +*/ +#define RF64_MARKER MAKE_MARKER ('R', 'F', '6', '4') +#define FFFF_MARKER MAKE_MARKER (0xff, 0xff, 0xff, 0xff) +#define WAVE_MARKER MAKE_MARKER ('W', 'A', 'V', 'E') +#define ds64_MARKER MAKE_MARKER ('d', 's', '6', '4') +#define fmt_MARKER MAKE_MARKER ('f', 'm', 't', ' ') +#define fact_MARKER MAKE_MARKER ('f', 'a', 'c', 't') +#define data_MARKER MAKE_MARKER ('d', 'a', 't', 'a') + +#define bext_MARKER MAKE_MARKER ('b', 'e', 'x', 't') +#define OggS_MARKER MAKE_MARKER ('O', 'g', 'g', 'S') +#define wvpk_MARKER MAKE_MARKER ('w', 'v', 'p', 'k') + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int rf64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ; +static int rf64_write_header (SF_PRIVATE *psf, int calc_length) ; +static int rf64_close (SF_PRIVATE *psf) ; +static int rf64_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +rf64_open (SF_PRIVATE *psf) +{ WAV_PRIVATE *wpriv ; + int subformat, error = 0 ; + int blockalign, framesperblock ; + + if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + psf->container_data = wpriv ; + wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ; + + /* All RF64 files are little endian. */ + psf->endian = SF_ENDIAN_LITTLE ; + + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = rf64_read_header (psf, &blockalign, &framesperblock)) != 0) + return error ; + } ; + + if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_RF64) + return SFE_BAD_OPEN_FORMAT ; + + subformat = psf->sf.format & SF_FORMAT_SUBMASK ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + if ((error = rf64_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = rf64_write_header ; + } ; + + psf->container_close = rf64_close ; + psf->command = rf64_command ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + /* Lite remove end */ + + default : return SFE_UNIMPLEMENTED ; + } ; + + return error ; +} /* rf64_open */ + +/*------------------------------------------------------------------------------ +*/ +enum +{ HAVE_ds64 = 0x01, + HAVE_fmt = 0x02, + HAVE_bext = 0x04, + HAVE_data = 0x08 +} ; + +#define HAVE_CHUNK(CHUNK) ((parsestage & CHUNK) != 0) + +static int +rf64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) +{ WAV_PRIVATE *wpriv ; + WAV_FMT *wav_fmt ; + sf_count_t riff_size = 0, frame_count = 0, ds64_datalength = 0 ; + unsigned int size32, parsestage = 0 ; + int marker, marks [2], error, done = 0, format = 0 ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + wav_fmt = &wpriv->wav_fmt ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "pmmm", 0, &marker, marks, marks + 1) ; + if (marker != RF64_MARKER || marks [1] != WAVE_MARKER) + return SFE_RF64_NOT_RF64 ; + + if (marks [0] == FFFF_MARKER) + psf_log_printf (psf, "%M\n %M\n", RF64_MARKER, WAVE_MARKER) ; + else + psf_log_printf (psf, "%M : 0x%x (should be 0xFFFFFFFF)\n %M\n", RF64_MARKER, WAVE_MARKER) ; + + while (NOT (done)) + { psf_binheader_readf (psf, "em4", &marker, &size32) ; + + switch (marker) + { case ds64_MARKER : + { unsigned int table_len, bytesread ; + + /* Read ds64 sizes (3 8-byte words). */ + bytesread = psf_binheader_readf (psf, "888", &riff_size, &ds64_datalength, &frame_count) ; + + /* Read table length. */ + bytesread += psf_binheader_readf (psf, "4", &table_len) ; + /* Skip table for now. (this was "table_len + 4", why?) */ + bytesread += psf_binheader_readf (psf, "j", table_len) ; + + if (size32 == bytesread) + psf_log_printf (psf, "%M : %u\n", marker, size32) ; + else if (size32 >= bytesread + 4) + { unsigned int next ; + psf_binheader_readf (psf, "m", &next) ; + if (next == fmt_MARKER) + { psf_log_printf (psf, "%M : %u (should be %u)\n", marker, size32, bytesread) ; + psf_binheader_readf (psf, "j", -4) ; + } + else + { psf_log_printf (psf, "%M : %u\n", marker, size32) ; + psf_binheader_readf (psf, "j", size32 - bytesread - 4) ; + } ; + } ; + + if (psf->filelength != riff_size + 8) + psf_log_printf (psf, " Riff size : %D (should be %D)\n", riff_size, psf->filelength - 8) ; + else + psf_log_printf (psf, " Riff size : %D\n", riff_size) ; + + psf_log_printf (psf, " Data size : %D\n", ds64_datalength) ; + + psf_log_printf (psf, " Frames : %D\n", frame_count) ; + psf_log_printf (psf, " Table length : %u\n", table_len) ; + + } ; + parsestage |= HAVE_ds64 ; + break ; + + case fmt_MARKER: + psf_log_printf (psf, "%M : %u\n", marker, size32) ; + if ((error = wav_w64_read_fmt_chunk (psf, size32)) != 0) + return error ; + format = wav_fmt->format ; + parsestage |= HAVE_fmt ; + break ; + + case bext_MARKER : + if ((error = wav_read_bext_chunk (psf, size32)) != 0) + return error ; + parsestage |= HAVE_bext ; + break ; + + case data_MARKER : + /* see wav for more sophisticated parsing -> implement state machine with parsestage */ + + if (HAVE_CHUNK (HAVE_ds64)) + { if (size32 == 0xffffffff) + psf_log_printf (psf, "%M : 0x%x\n", marker, size32) ; + else + psf_log_printf (psf, "%M : 0x%x (should be 0xffffffff\n", marker, size32) ; + psf->datalength = ds64_datalength ; + } + else + { if (size32 == 0xffffffff) + { psf_log_printf (psf, "%M : 0x%x\n", marker, size32) ; + psf_log_printf (psf, " *** Data length not specified no 'ds64' chunk.\n") ; + } + else + { psf_log_printf (psf, "%M : 0x%x\n**** Weird, RF64 file without a 'ds64' chunk and no valid 'data' size.\n", marker, size32) ; + psf->datalength = size32 ; + } ; + } ; + + psf->dataoffset = psf_ftell (psf) ; + + if (psf->dataoffset > 0) + { if (size32 == 0 && riff_size == 8 && psf->filelength > 44) + { psf_log_printf (psf, " *** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ; + psf->datalength = psf->filelength - psf->dataoffset ; + } ; + + /* Only set dataend if there really is data at the end. */ + if (psf->datalength + psf->dataoffset < psf->filelength) + psf->dataend = psf->datalength + psf->dataoffset ; + + if (NOT (psf->sf.seekable) || psf->dataoffset < 0) + break ; + + /* Seek past data and continue reading header. */ + psf_fseek (psf, psf->datalength, SEEK_CUR) ; + + if (psf_ftell (psf) != psf->datalength + psf->dataoffset) + psf_log_printf (psf, " *** psf_fseek past end error ***\n") ; + break ; + } ; + break ; + + default : + if (isprint ((marker >> 24) & 0xFF) && isprint ((marker >> 16) & 0xFF) + && isprint ((marker >> 8) & 0xFF) && isprint (marker & 0xFF)) + { psf_log_printf (psf, "*** %M : %d (unknown marker)\n", marker, size32) ; + if (size32 < 8) + done = SF_TRUE ; + psf_binheader_readf (psf, "j", size32) ; + break ; + } ; + if (psf_ftell (psf) & 0x03) + { psf_log_printf (psf, " Unknown chunk marker at position 0x%x. Resynching.\n", size32 - 4) ; + psf_binheader_readf (psf, "j", -3) ; + break ; + } ; + psf_log_printf (psf, "*** Unknown chunk marker (0x%X) at position 0x%X. Exiting parser.\n", marker, psf_ftell (psf) - 4) ; + done = SF_TRUE ; + break ; + } ; /* switch (marker) */ + + if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (marker)) + { psf_log_printf (psf, "End\n") ; + break ; + } ; + } ; + + if (psf->dataoffset <= 0) + return SFE_WAV_NO_DATA ; + + /* WAVs can be little or big endian */ + psf->endian = psf->rwf_endian ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (psf->is_pipe == 0) + { /* + ** Check for 'wvpk' at the start of the DATA section. Not able to + ** handle this. + */ + psf_binheader_readf (psf, "4", &marker) ; + if (marker == wvpk_MARKER || marker == OggS_MARKER) + return SFE_WAV_WVPK_DATA ; + } ; + + /* Seek to start of DATA section. */ + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (psf->blockwidth) + { if (psf->filelength - psf->dataoffset < psf->datalength) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + else + psf->sf.frames = psf->datalength / psf->blockwidth ; + } ; + + if (frame_count != psf->sf.frames) + psf_log_printf (psf, "*** Calculated frame count %d does not match value from 'ds64' chunk of %d.\n", psf->sf.frames, frame_count) ; + + switch (format) + { + case WAVE_FORMAT_EXTENSIBLE : + + /* with WAVE_FORMAT_EXTENSIBLE the psf->sf.format field is already set. We just have to set the major to rf64 */ + psf->sf.format = (psf->sf.format & ~SF_FORMAT_TYPEMASK ) | SF_FORMAT_RF64 ; + + if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM)) + { *blockalign = wav_fmt->msadpcm.blockalign ; + *framesperblock = wav_fmt->msadpcm.samplesperblock ; + } ; + break ; + + case WAVE_FORMAT_PCM : + psf->sf.format = SF_FORMAT_RF64 | u_bitwidth_to_subformat (psf->bytewidth * 8) ; + break ; + + case WAVE_FORMAT_MULAW : + case IBM_FORMAT_MULAW : + psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_ULAW) ; + break ; + + case WAVE_FORMAT_ALAW : + case IBM_FORMAT_ALAW : + psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_ALAW) ; + break ; + + case WAVE_FORMAT_MS_ADPCM : + psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_MS_ADPCM) ; + *blockalign = wav_fmt->msadpcm.blockalign ; + *framesperblock = wav_fmt->msadpcm.samplesperblock ; + break ; + + case WAVE_FORMAT_IMA_ADPCM : + psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_IMA_ADPCM) ; + *blockalign = wav_fmt->ima.blockalign ; + *framesperblock = wav_fmt->ima.samplesperblock ; + break ; + + case WAVE_FORMAT_GSM610 : + psf->sf.format = (SF_FORMAT_RF64 | SF_FORMAT_GSM610) ; + break ; + + case WAVE_FORMAT_IEEE_FLOAT : + psf->sf.format = SF_FORMAT_RF64 ; + psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ; + break ; + + case WAVE_FORMAT_G721_ADPCM : + psf->sf.format = SF_FORMAT_RF64 | SF_FORMAT_G721_32 ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + if (wpriv->fmt_is_broken) + wav_w64_analyze (psf) ; + + /* Only set the format endian-ness if its non-standard big-endian. */ + if (psf->endian == SF_ENDIAN_BIG) + psf->sf.format |= SF_ENDIAN_BIG ; + + return 0 ; +} /* rf64_read_header */ + +/* known WAVEFORMATEXTENSIBLE GUIDS */ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM = +{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM = +{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT = +{ 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW = +{ 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW = +{ 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +/* +** the next two are from +** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html +*/ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM = +{ 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT = +{ 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 } +} ; + + +static int +rf64_write_fmt_chunk (SF_PRIVATE *psf) +{ WAV_PRIVATE *wpriv ; + int subformat, fmt_size ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + + subformat = psf->sf.format & SF_FORMAT_SUBMASK ; + + /* initial section (same for all, it appears) */ + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + case SF_FORMAT_ULAW : + case SF_FORMAT_ALAW : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_EXTENSIBLE, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + + /* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */ + psf_binheader_writef (psf, "2", 22) ; + + /* wValidBitsPerSample, for our use same as bitwidth as we use it fully */ + psf_binheader_writef (psf, "2", psf->bytewidth * 8) ; + + /* For an Ambisonic file set the channel mask to zero. + ** Otherwise use a default based on the channel count. + */ + if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE) + psf_binheader_writef (psf, "4", 0) ; + else if (wpriv->wavex_channelmask != 0) + psf_binheader_writef (psf, "4", wpriv->wavex_channelmask) ; + else + { /* + ** Ok some liberty is taken here to use the most commonly used channel masks + ** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less + ** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND) + */ + switch (psf->sf.channels) + { case 1 : /* center channel mono */ + psf_binheader_writef (psf, "4", 0x4) ; + break ; + + case 2 : /* front left and right */ + psf_binheader_writef (psf, "4", 0x1 | 0x2) ; + break ; + + case 4 : /* Quad */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x10 | 0x20) ; + break ; + + case 6 : /* 5.1 */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20) ; + break ; + + case 8 : /* 7.1 */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80) ; + break ; + + default : /* 0 when in doubt , use direct out, ie NO mapping*/ + psf_binheader_writef (psf, "4", 0x0) ; + break ; + } ; + } ; + break ; + + case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */ + default : + return SFE_UNIMPLEMENTED ; + } ; + + /* GUID section, different for each */ + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ? + &MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ; + break ; + + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ? + &MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ; + break ; + + case SF_FORMAT_ULAW : + wavex_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ; + break ; + + case SF_FORMAT_ALAW : + wavex_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + return 0 ; +} /* rf64_write_fmt_chunk */ + + +static int +rf64_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int error = 0, has_data = SF_FALSE ; + + current = psf_ftell (psf) ; + + if (psf->dataoffset > 0 && current > psf->dataoffset) + has_data = SF_TRUE ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + psf_binheader_writef (psf, "em4m", RF64_MARKER, 0xffffffff, WAVE_MARKER) ; + + /* Currently no table. */ + psf_binheader_writef (psf, "m48884", ds64_MARKER, 28, psf->filelength - 8, psf->datalength, psf->sf.frames, 0) ; + + /* WAVE and 'fmt ' markers. */ + psf_binheader_writef (psf, "m", fmt_MARKER) ; + + /* Write the 'fmt ' chunk. */ + switch (psf->sf.format & SF_FORMAT_TYPEMASK) + { case SF_FORMAT_WAV : + psf_log_printf (psf, "ooops SF_FORMAT_WAV\n") ; + return SFE_UNIMPLEMENTED ; + break ; + + case SF_FORMAT_WAVEX : + case SF_FORMAT_RF64 : + if ((error = rf64_write_fmt_chunk (psf)) != 0) + return error ; + break ; + + default : + return SFE_UNIMPLEMENTED ; + } ; + + if (psf->broadcast_16k != NULL) + wav_write_bext_chunk (psf) ; + +#if 0 + /* The LIST/INFO chunk. */ + if (psf->str_flags & SF_STR_LOCATE_START) + wav_write_strings (psf, SF_STR_LOCATE_START) ; + + if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START) + { psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "44", 1, time (NULL)) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "ft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + +// if (psf->broadcast_info != NULL) +// wav_write_bext_chunk (psf) ; + + if (psf->instrument != NULL) + { int tmp ; + double dtune = (double) (0x40000000) / 25.0 ; + + psf_binheader_writef (psf, "m4", smpl_MARKER, 9 * 4 + psf->instrument->loop_count * 6 * 4) ; + psf_binheader_writef (psf, "44", 0, 0) ; /* Manufacturer zero is everyone */ + tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */ + psf_binheader_writef (psf, "44", tmp, psf->instrument->basenote) ; + tmp = (unsigned int) (psf->instrument->detune * dtune + 0.5) ; + psf_binheader_writef (psf, "4", tmp) ; + psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */ + psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ; + + for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++) + { int type ; + + type = psf->instrument->loops [tmp].mode ; + type = (type == SF_LOOP_FORWARD ? 0 : type==SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ; + + psf_binheader_writef (psf, "44", tmp, type) ; + psf_binheader_writef (psf, "44", psf->instrument->loops [tmp].start, psf->instrument->loops [tmp].end) ; + psf_binheader_writef (psf, "44", 0, psf->instrument->loops [tmp].count) ; + } ; + } ; + + if (psf->headindex + 8 < psf->dataoffset) + { /* Add PAD data if necessary. */ + k = psf->dataoffset - 16 - psf->headindex ; + psf_binheader_writef (psf, "m4z", PAD_MARKER, k, make_size_t (k)) ; + } ; + +#endif + + psf_binheader_writef (psf, "m4", data_MARKER, 0xffffffff) ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + if (psf->error) + return psf->error ; + + if (has_data && psf->dataoffset != psf->headindex) + { printf ("Oooops : has_data && psf->dataoffset != psf->headindex\n") ; + return psf->error = SFE_INTERNAL ; + } ; + + psf->dataoffset = psf->headindex ; + + if (NOT (has_data)) + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + else if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* rf64_write_header */ + +static int +rf64_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { // rf64_write_tailer (psf) ; + + psf->write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* rf64_close */ + +static int +rf64_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize) +{ WAV_PRIVATE *wpriv ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + + switch (command) + { case SFC_WAVEX_SET_AMBISONIC : + if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX) + { if (datasize == SF_AMBISONIC_NONE) + wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ; + else if (datasize == SF_AMBISONIC_B_FORMAT) + wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ; + else + return 0 ; + } ; + return wpriv->wavex_ambisonic ; + + case SFC_WAVEX_GET_AMBISONIC : + return wpriv->wavex_ambisonic ; + + case SFC_SET_CHANNEL_MAP_INFO : + wpriv->wavex_channelmask = wavex_gen_channel_mask (psf->channel_map, psf->sf.channels) ; + return (wpriv->wavex_channelmask != 0) ; + + default : + break ; + } ; + + return 0 ; +} /* rf64_command */ + diff --git a/src/rx2.c b/src/rx2.c new file mode 100644 index 0000000..0aa1bcf --- /dev/null +++ b/src/rx2.c @@ -0,0 +1,319 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <stdarg.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (ENABLE_EXPERIMENTAL_CODE == 0) + +int +rx2_open (SF_PRIVATE *psf) +{ if (psf) + return SFE_UNIMPLEMENTED ; + return 0 ; +} /* rx2_open */ + +#else + +/*------------------------------------------------------------------------------ + * Macros to handle big/little endian issues. +*/ + +#define CAT_MARKER (MAKE_MARKER ('C', 'A', 'T', ' ')) +#define GLOB_MARKER (MAKE_MARKER ('G', 'L', 'O', 'B')) + +#define RECY_MARKER (MAKE_MARKER ('R', 'E', 'C', 'Y')) + +#define SLCL_MARKER (MAKE_MARKER ('S', 'L', 'C', 'L')) +#define SLCE_MARKER (MAKE_MARKER ('S', 'L', 'C', 'E')) + +#define DEVL_MARKER (MAKE_MARKER ('D', 'E', 'V', 'L')) +#define TRSH_MARKER (MAKE_MARKER ('T', 'R', 'S', 'H')) + +#define EQ_MARKER (MAKE_MARKER ('E', 'Q', ' ', ' ')) +#define COMP_MARKER (MAKE_MARKER ('C', 'O', 'M', 'P')) + +#define SINF_MARKER (MAKE_MARKER ('S', 'I', 'N', 'F')) +#define SDAT_MARKER (MAKE_MARKER ('S', 'D', 'A', 'T')) + +/*------------------------------------------------------------------------------ + * Typedefs for file chunks. +*/ + + +/*------------------------------------------------------------------------------ + * Private static functions. +*/ +static int rx2_close (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public functions. +*/ + +int +rx2_open (SF_PRIVATE *psf) +{ static const char *marker_type [4] = + { "Original Enabled", "Enabled Hidden", + "Additional/PencilTool", "Disabled" + } ; + + int error, marker, length, glob_offset, slce_count, frames ; + + int sdat_length = 0, slce_total = 0 ; + + int n_channels ; + + + /* So far only doing read. */ + + psf_binheader_readf (psf, "Epm4", 0, &marker, &length) ; + + if (marker != CAT_MARKER) + { psf_log_printf (psf, "length : %d\n", length) ; + return -1000 ; + } ; + + if (length != psf->filelength - 8) + psf_log_printf (psf, "%M : %d (should be %d)\n", marker, length, psf->filelength - 8) ; + else + psf_log_printf (psf, "%M : %d\n", marker, length) ; + + /* 'REX2' marker */ + psf_binheader_readf (psf, "m", &marker) ; + psf_log_printf (psf, "%M", marker) ; + + /* 'HEAD' marker */ + psf_binheader_readf (psf, "m", &marker) ; + psf_log_printf (psf, "%M\n", marker) ; + + /* Grab 'GLOB' offset. */ + psf_binheader_readf (psf, "E4", &glob_offset) ; + glob_offset += 0x14 ; /* Add the current file offset. */ + + /* Jump to offset 0x30 */ + psf_binheader_readf (psf, "p", 0x30) ; + + /* Get name length */ + length = 0 ; + psf_binheader_readf (psf, "1", &length) ; + if (length >= SIGNED_SIZEOF (psf->u.cbuf)) + { psf_log_printf (psf, " Text : %d *** Error : Too sf_count_t!\n") ; + return -1001 ; + } + + memset (psf->u.cbuf, 0, sizeof (psf->u.cbuf)) ; + psf_binheader_readf (psf, "b", psf->u.cbuf, length) ; + psf_log_printf (psf, " Text : \"%s\"\n", psf->u.cbuf) ; + + /* Jump to GLOB offset position. */ + if (glob_offset & 1) + glob_offset ++ ; + + psf_binheader_readf (psf, "p", glob_offset) ; + + slce_count = 0 ; + /* GLOB */ + while (1) + { psf_binheader_readf (psf, "m", &marker) ; + + if (marker != SLCE_MARKER && slce_count > 0) + { psf_log_printf (psf, " SLCE count : %d\n", slce_count) ; + slce_count = 0 ; + } + switch (marker) + { case GLOB_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " %M : %d\n", marker, length) ; + psf_binheader_readf (psf, "j", length) ; + break ; + + case RECY_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " %M : %d\n", marker, length) ; + psf_binheader_readf (psf, "j", (length+1) & 0xFFFFFFFE) ; /* ?????? */ + break ; + + case CAT_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " %M : %d\n", marker, length) ; + /*-psf_binheader_readf (psf, "j", length) ;-*/ + break ; + + case DEVL_MARKER: + psf_binheader_readf (psf, "mE4", &marker, &length) ; + psf_log_printf (psf, " DEVL%M : %d\n", marker, length) ; + if (length & 1) + length ++ ; + psf_binheader_readf (psf, "j", length) ; + break ; + + case EQ_MARKER: + case COMP_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " %M : %d\n", marker, length) ; + /* This is weird!!!! why make this (length - 1) */ + if (length & 1) + length ++ ; + psf_binheader_readf (psf, "j", length) ; + break ; + + case SLCL_MARKER: + psf_log_printf (psf, " %M\n (Offset, Next Offset, Type)\n", marker) ; + slce_count = 0 ; + break ; + + case SLCE_MARKER: + { int len [4], indx ; + + psf_binheader_readf (psf, "E4444", &len [0], &len [1], &len [2], &len [3]) ; + + indx = ((len [3] & 0x0000FFFF) >> 8) & 3 ; + + if (len [2] == 1) + { if (indx != 1) + indx = 3 ; /* 2 cases, where next slice offset = 1 -> disabled & enabled/hidden */ + + psf_log_printf (psf, " %M : (%6d, ?: 0x%X, %s)\n", marker, len [1], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ; + } + else + { slce_total += len [2] ; + + psf_log_printf (psf, " %M : (%6d, SLCE_next_ofs:%d, ?: 0x%X, %s)\n", marker, len [1], len [2], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ; + } ; + + slce_count ++ ; + } ; + break ; + + case SINF_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " %M : %d\n", marker, length) ; + + psf_binheader_readf (psf, "E2", &n_channels) ; + n_channels = (n_channels & 0x0000FF00) >> 8 ; + psf_log_printf (psf, " Channels : %d\n", n_channels) ; + + psf_binheader_readf (psf, "E44", &psf->sf.samplerate, &frames) ; + psf->sf.frames = frames ; + psf_log_printf (psf, " Sample Rate : %d\n", psf->sf.samplerate) ; + psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ; + + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " ??????????? : %d\n", length) ; + + psf_binheader_readf (psf, "E4", &length) ; + psf_log_printf (psf, " ??????????? : %d\n", length) ; + break ; + + case SDAT_MARKER: + psf_binheader_readf (psf, "E4", &length) ; + + sdat_length = length ; + + /* Get the current offset. */ + psf->dataoffset = psf_binheader_readf (psf, NULL) ; + + if (psf->dataoffset + length != psf->filelength) + psf_log_printf (psf, " %M : %d (should be %d)\n", marker, length, psf->dataoffset + psf->filelength) ; + else + psf_log_printf (psf, " %M : %d\n", marker, length) ; + break ; + + default : + psf_log_printf (psf, "Unknown marker : 0x%X %M", marker, marker) ; + return -1003 ; + break ; + } ; + + /* SDAT always last marker in file. */ + if (marker == SDAT_MARKER) + break ; + } ; + + puts (psf->logbuffer) ; + puts ("-----------------------------------") ; + + printf ("SDAT length : %d\n", sdat_length) ; + printf ("SLCE count : %d\n", slce_count) ; + + /* Hack for zero slice count. */ + if (slce_count == 0 && slce_total == 1) + slce_total = frames ; + + printf ("SLCE samples : %d\n", slce_total) ; + + /* Two bytes per sample. */ + printf ("Comp Ratio : %f:1\n", (2.0 * slce_total * n_channels) / sdat_length) ; + + puts (" ") ; + + psf->logbuffer [0] = 0 ; + + /* OK, have the header although not too sure what it all means. */ + + psf->endian = SF_ENDIAN_BIG ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf_fseek (psf, psf->dataoffset, SEEK_SET)) + return SFE_BAD_SEEK ; + + psf->sf.format = (SF_FORMAT_REX2 | SF_FORMAT_DWVW_12) ; + + psf->sf.channels = 1 ; + psf->bytewidth = 2 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if ((error = dwvw_init (psf, 16))) + return error ; + + psf->container_close = rx2_close ; + + if (! psf->sf.frames && psf->blockwidth) + psf->sf.frames = psf->datalength / psf->blockwidth ; + + /* All done. */ + + return 0 ; +} /* rx2_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +rx2_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE) + { /* Now we know for certain the length of the file we can re-write + ** correct values for the FORM, 8SVX and BODY chunks. + */ + + } ; + + return 0 ; +} /* rx2_close */ + +#endif diff --git a/src/sd2.c b/src/sd2.c new file mode 100644 index 0000000..9ef10a9 --- /dev/null +++ b/src/sd2.c @@ -0,0 +1,632 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2004 Paavo Jumppanen +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** The sd2 support implemented in this file was partially sponsored +** (financially) by Paavo Jumppanen. +*/ + +/* +** Documentation on the Mac resource fork was obtained here : +** http://developer.apple.com/documentation/mac/MoreToolbox/MoreToolbox-99.html +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ + * Markers. +*/ + +#define Sd2f_MARKER MAKE_MARKER ('S', 'd', '2', 'f') +#define Sd2a_MARKER MAKE_MARKER ('S', 'd', '2', 'a') +#define ALCH_MARKER MAKE_MARKER ('A', 'L', 'C', 'H') +#define lsf1_MARKER MAKE_MARKER ('l', 's', 'f', '1') + +#define STR_MARKER MAKE_MARKER ('S', 'T', 'R', ' ') +#define sdML_MARKER MAKE_MARKER ('s', 'd', 'M', 'L') + +enum +{ RSRC_STR = 111, + RSRC_BIN +} ; + +typedef struct +{ unsigned char * rsrc_data ; + int rsrc_len ; + int need_to_free_rsrc_data ; + + int data_offset, data_length ; + int map_offset, map_length ; + + int type_count, type_offset ; + int item_offset ; + + int str_index, str_count ; + + int string_offset ; + + /* All the above just to get these three. */ + int sample_size, sample_rate, channels ; +} SD2_RSRC ; + +typedef struct +{ int type ; + int id ; + char name [32] ; + char value [32] ; + int value_len ; +} STR_RSRC ; + +/*------------------------------------------------------------------------------ + * Private static functions. +*/ + +static int sd2_close (SF_PRIVATE *psf) ; + +static int sd2_parse_rsrc_fork (SF_PRIVATE *psf) ; +static int parse_str_rsrc (SF_PRIVATE *psf, SD2_RSRC * rsrc) ; + +static int sd2_write_rsrc_fork (SF_PRIVATE *psf, int calc_length) ; + +/*------------------------------------------------------------------------------ +** Public functions. +*/ + +int +sd2_open (SF_PRIVATE *psf) +{ int subformat, error = 0, valid ; + + /* SD2 is always big endian. */ + psf->endian = SF_ENDIAN_BIG ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->rsrclength > 0)) + { psf_use_rsrc (psf, SF_TRUE) ; + valid = psf_file_valid (psf) ; + psf_use_rsrc (psf, SF_FALSE) ; + if (! valid) + { psf_log_printf (psf, "sd2_open : psf->rsrc.filedes < 0\n") ; + return SFE_SD2_BAD_RSRC ; + } ; + + error = sd2_parse_rsrc_fork (psf) ; + + if (error) + goto error_cleanup ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_SD2) + { error = SFE_BAD_OPEN_FORMAT ; + goto error_cleanup ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + psf->dataoffset = 0 ; + + /* Only open and write the resource in RDWR mode is its current length is zero. */ + if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->rsrclength == 0)) + { psf->rsrc.mode = psf->file.mode ; + psf_open_rsrc (psf) ; + + error = sd2_write_rsrc_fork (psf, SF_FALSE) ; + + if (error) + goto error_cleanup ; + + /* Not needed. */ + psf->write_header = NULL ; + } ; + + psf->container_close = sd2_close ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_PCM_S8 : /* 8-bit linear PCM. */ + case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ + case SF_FORMAT_PCM_24 : /* 24-bit linear PCM */ + error = pcm_init (psf) ; + break ; + + default : + error = SFE_UNIMPLEMENTED ; + break ; + } ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + +error_cleanup: + + /* Close the resource fork regardless. We won't need it again. */ + psf_close_rsrc (psf) ; + + return error ; +} /* sd2_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +sd2_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE) + { /* Now we know for certain the audio_length of the file we can re-write + ** correct values for the FORM, 8SVX and BODY chunks. + */ + + } ; + + return 0 ; +} /* sd2_close */ + +/*------------------------------------------------------------------------------ +*/ + +static inline void +write_char (unsigned char * data, int offset, char value) +{ data [offset] = value ; +} /* write_char */ + +static inline void +write_short (unsigned char * data, int offset, short value) +{ data [offset] = value >> 8 ; + data [offset + 1] = value ; +} /* write_char */ + +static inline void +write_int (unsigned char * data, int offset, int value) +{ data [offset] = value >> 24 ; + data [offset + 1] = value >> 16 ; + data [offset + 2] = value >> 8 ; + data [offset + 3] = value ; +} /* write_int */ + +static inline void +write_marker (unsigned char * data, int offset, int value) +{ + if (CPU_IS_BIG_ENDIAN) + { data [offset] = value >> 24 ; + data [offset + 1] = value >> 16 ; + data [offset + 2] = value >> 8 ; + data [offset + 3] = value ; + } + else + { data [offset] = value ; + data [offset + 1] = value >> 8 ; + data [offset + 2] = value >> 16 ; + data [offset + 3] = value >> 24 ; + } ; +} /* write_marker */ + +static void +write_str (unsigned char * data, int offset, const char * buffer, int buffer_len) +{ memcpy (data + offset, buffer, buffer_len) ; +} /* write_str */ + +static int +sd2_write_rsrc_fork (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ SD2_RSRC rsrc ; + STR_RSRC str_rsrc [] = + { { RSRC_STR, 1000, "_sample-size", "", 0 }, + { RSRC_STR, 1001, "_sample-rate", "", 0 }, + { RSRC_STR, 1002, "_channels", "", 0 }, + { RSRC_BIN, 1000, "_Markers", "", 8 } + } ; + + int k, str_offset, data_offset, next_str ; + + psf_use_rsrc (psf, SF_TRUE) ; + + memset (&rsrc, 0, sizeof (rsrc)) ; + + rsrc.sample_rate = psf->sf.samplerate ; + rsrc.sample_size = psf->bytewidth ; + rsrc.channels = psf->sf.channels ; + + rsrc.rsrc_data = psf->header ; + rsrc.rsrc_len = sizeof (psf->header) ; + memset (rsrc.rsrc_data, 0xea, rsrc.rsrc_len) ; + + snprintf (str_rsrc [0].value, sizeof (str_rsrc [0].value), "_%d", rsrc.sample_size) ; + snprintf (str_rsrc [1].value, sizeof (str_rsrc [1].value), "_%d.000000", rsrc.sample_rate) ; + snprintf (str_rsrc [2].value, sizeof (str_rsrc [2].value), "_%d", rsrc.channels) ; + + for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++) + { if (str_rsrc [k].value_len == 0) + { str_rsrc [k].value_len = strlen (str_rsrc [k].value) ; + str_rsrc [k].value [0] = str_rsrc [k].value_len - 1 ; + } ; + + /* Turn name string into a pascal string. */ + str_rsrc [k].name [0] = strlen (str_rsrc [k].name) - 1 ; + } ; + + rsrc.data_offset = 0x100 ; + + /* + ** Calculate data length : + ** length of strings, plus the length of the sdML chunk. + */ + rsrc.data_length = 0 ; + for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++) + rsrc.data_length += str_rsrc [k].value_len + 4 ; + + rsrc.map_offset = rsrc.data_offset + rsrc.data_length ; + + /* Very start of resource fork. */ + write_int (rsrc.rsrc_data, 0, rsrc.data_offset) ; + write_int (rsrc.rsrc_data, 4, rsrc.map_offset) ; + write_int (rsrc.rsrc_data, 8, rsrc.data_length) ; + + write_char (rsrc.rsrc_data, 0x30, strlen (psf->file.name.c)) ; + write_str (rsrc.rsrc_data, 0x31, psf->file.name.c, strlen (psf->file.name.c)) ; + + write_short (rsrc.rsrc_data, 0x50, 0) ; + write_marker (rsrc.rsrc_data, 0x52, Sd2f_MARKER) ; + write_marker (rsrc.rsrc_data, 0x56, lsf1_MARKER) ; + + /* Very start of resource map. */ + write_int (rsrc.rsrc_data, rsrc.map_offset + 0, rsrc.data_offset) ; + write_int (rsrc.rsrc_data, rsrc.map_offset + 4, rsrc.map_offset) ; + write_int (rsrc.rsrc_data, rsrc.map_offset + 8, rsrc.data_length) ; + + /* These I don't currently understand. */ + if (1) + { write_char (rsrc.rsrc_data, rsrc.map_offset+ 16, 1) ; + /* Next resource map. */ + write_int (rsrc.rsrc_data, rsrc.map_offset + 17, 0x12345678) ; + /* File ref number. */ + write_short (rsrc.rsrc_data, rsrc.map_offset + 21, 0xabcd) ; + /* Fork attributes. */ + write_short (rsrc.rsrc_data, rsrc.map_offset + 23, 0) ; + } ; + + /* Resource type offset. */ + rsrc.type_offset = rsrc.map_offset + 30 ; + write_short (rsrc.rsrc_data, rsrc.map_offset + 24, rsrc.type_offset - rsrc.map_offset - 2) ; + + /* Type index max. */ + rsrc.type_count = 2 ; + write_short (rsrc.rsrc_data, rsrc.map_offset + 28, rsrc.type_count - 1) ; + + rsrc.item_offset = rsrc.type_offset + rsrc.type_count * 8 ; + + rsrc.str_count = ARRAY_LEN (str_rsrc) ; + rsrc.string_offset = rsrc.item_offset + (rsrc.str_count + 1) * 12 - rsrc.map_offset ; + write_short (rsrc.rsrc_data, rsrc.map_offset + 26, rsrc.string_offset) ; + + /* Write 'STR ' resource type. */ + rsrc.str_count = 3 ; + write_marker (rsrc.rsrc_data, rsrc.type_offset, STR_MARKER) ; + write_short (rsrc.rsrc_data, rsrc.type_offset + 4, rsrc.str_count - 1) ; + write_short (rsrc.rsrc_data, rsrc.type_offset + 6, 0x12) ; + + /* Write 'sdML' resource type. */ + write_marker (rsrc.rsrc_data, rsrc.type_offset + 8, sdML_MARKER) ; + write_short (rsrc.rsrc_data, rsrc.type_offset + 12, 0) ; + write_short (rsrc.rsrc_data, rsrc.type_offset + 14, 0x36) ; + + str_offset = rsrc.map_offset + rsrc.string_offset ; + next_str = 0 ; + data_offset = rsrc.data_offset ; + for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++) + { write_str (rsrc.rsrc_data, str_offset, str_rsrc [k].name, strlen (str_rsrc [k].name)) ; + + write_short (rsrc.rsrc_data, rsrc.item_offset + k * 12, str_rsrc [k].id) ; + write_short (rsrc.rsrc_data, rsrc.item_offset + k * 12 + 2, next_str) ; + + str_offset += strlen (str_rsrc [k].name) ; + next_str += strlen (str_rsrc [k].name) ; + + write_int (rsrc.rsrc_data, rsrc.item_offset + k * 12 + 4, data_offset - rsrc.data_offset) ; + + write_int (rsrc.rsrc_data, data_offset, str_rsrc [k].value_len) ; + write_str (rsrc.rsrc_data, data_offset + 4, str_rsrc [k].value, str_rsrc [k].value_len) ; + data_offset += 4 + str_rsrc [k].value_len ; + } ; + + /* Finally, calculate and set map length. */ + rsrc.map_length = str_offset - rsrc.map_offset ; + write_int (rsrc.rsrc_data, 12, rsrc.map_length) ; + write_int (rsrc.rsrc_data, rsrc.map_offset + 12, rsrc.map_length) ; + + rsrc.rsrc_len = rsrc.map_offset + rsrc.map_length ; + + psf_fwrite (rsrc.rsrc_data, rsrc.rsrc_len, 1, psf) ; + + psf_use_rsrc (psf, SF_FALSE) ; + + if (psf->error) + return psf->error ; + + return 0 ; +} /* sd2_write_rsrc_fork */ + +/*------------------------------------------------------------------------------ +*/ + +static inline int +read_char (const unsigned char * data, int offset) +{ return data [offset] ; +} /* read_char */ + +static inline int +read_short (const unsigned char * data, int offset) +{ return (data [offset] << 8) + data [offset + 1] ; +} /* read_short */ + +static inline int +read_int (const unsigned char * data, int offset) +{ return (data [offset] << 24) + (data [offset + 1] << 16) + (data [offset + 2] << 8) + data [offset + 3] ; +} /* read_int */ + +static inline int +read_marker (const unsigned char * data, int offset) +{ + if (CPU_IS_BIG_ENDIAN) + return (data [offset] << 24) + (data [offset + 1] << 16) + (data [offset + 2] << 8) + data [offset + 3] ; + else if (CPU_IS_LITTLE_ENDIAN) + return data [offset] + (data [offset + 1] << 8) + (data [offset + 2] << 16) + (data [offset + 3] << 24) ; + else + return 0x666 ; +} /* read_marker */ + +static void +read_str (const unsigned char * data, int offset, char * buffer, int buffer_len) +{ int k ; + + memset (buffer, 0, buffer_len) ; + + for (k = 0 ; k < buffer_len - 1 ; k++) + { if (psf_isprint (data [offset + k]) == 0) + return ; + buffer [k] = data [offset + k] ; + } ; + return ; +} /* read_str */ + +static int +sd2_parse_rsrc_fork (SF_PRIVATE *psf) +{ SD2_RSRC rsrc ; + int k, marker, error = 0 ; + + psf_use_rsrc (psf, SF_TRUE) ; + + memset (&rsrc, 0, sizeof (rsrc)) ; + + rsrc.rsrc_len = psf_get_filelen (psf) ; + psf_log_printf (psf, "Resource length : %d (0x%04X)\n", rsrc.rsrc_len, rsrc.rsrc_len) ; + + if (rsrc.rsrc_len > SIGNED_SIZEOF (psf->header)) + { rsrc.rsrc_data = calloc (1, rsrc.rsrc_len) ; + rsrc.need_to_free_rsrc_data = SF_TRUE ; + } + else + rsrc.rsrc_data = psf->header ; + + /* Read in the whole lot. */ + psf_fread (rsrc.rsrc_data, rsrc.rsrc_len, 1, psf) ; + + /* Reset the header storage because we have changed to the rsrcdes. */ + psf->headindex = psf->headend = rsrc.rsrc_len ; + + rsrc.data_offset = read_int (rsrc.rsrc_data, 0) ; + rsrc.map_offset = read_int (rsrc.rsrc_data, 4) ; + rsrc.data_length = read_int (rsrc.rsrc_data, 8) ; + rsrc.map_length = read_int (rsrc.rsrc_data, 12) ; + + if (rsrc.data_offset == 0x51607 && rsrc.map_offset == 0x20000) + { psf_log_printf (psf, "Trying offset of 0x52 bytes.\n") ; + rsrc.data_offset = read_int (rsrc.rsrc_data, 0x52 + 0) + 0x52 ; + rsrc.map_offset = read_int (rsrc.rsrc_data, 0x52 + 4) + 0x52 ; + rsrc.data_length = read_int (rsrc.rsrc_data, 0x52 + 8) ; + rsrc.map_length = read_int (rsrc.rsrc_data, 0x52 + 12) ; + } ; + + psf_log_printf (psf, " data offset : 0x%04X\n map offset : 0x%04X\n" + " data length : 0x%04X\n map length : 0x%04X\n", + rsrc.data_offset, rsrc.map_offset, rsrc.data_length, rsrc.map_length) ; + + if (rsrc.data_offset > rsrc.rsrc_len) + { psf_log_printf (psf, "Error : rsrc.data_offset (%d, 0x%x) > len\n", rsrc.data_offset, rsrc.data_offset) ; + error = SFE_SD2_BAD_DATA_OFFSET ; + goto parse_rsrc_fork_cleanup ; + } ; + + if (rsrc.map_offset > rsrc.rsrc_len) + { psf_log_printf (psf, "Error : rsrc.map_offset > len\n") ; + error = SFE_SD2_BAD_MAP_OFFSET ; + goto parse_rsrc_fork_cleanup ; + } ; + + if (rsrc.data_length > rsrc.rsrc_len) + { psf_log_printf (psf, "Error : rsrc.data_length > len\n") ; + error = SFE_SD2_BAD_DATA_LENGTH ; + goto parse_rsrc_fork_cleanup ; + } ; + + if (rsrc.map_length > rsrc.rsrc_len) + { psf_log_printf (psf, "Error : rsrc.map_length > len\n") ; + error = SFE_SD2_BAD_MAP_LENGTH ; + goto parse_rsrc_fork_cleanup ; + } ; + + if (rsrc.data_offset + rsrc.data_length != rsrc.map_offset || rsrc.map_offset + rsrc.map_length != rsrc.rsrc_len) + { psf_log_printf (psf, "Error : This does not look like a MacOSX resource fork.\n") ; + error = SFE_SD2_BAD_RSRC ; + goto parse_rsrc_fork_cleanup ; + } ; + + if (rsrc.map_offset + 28 >= rsrc.rsrc_len) + { psf_log_printf (psf, "Bad map offset (%d + 28 > %d).\n", rsrc.map_offset, rsrc.rsrc_len) ; + error = SFE_SD2_BAD_RSRC ; + goto parse_rsrc_fork_cleanup ; + } ; + + rsrc.string_offset = rsrc.map_offset + read_short (rsrc.rsrc_data, rsrc.map_offset + 26) ; + if (rsrc.string_offset > rsrc.rsrc_len) + { psf_log_printf (psf, "Bad string offset (%d).\n", rsrc.string_offset) ; + error = SFE_SD2_BAD_RSRC ; + goto parse_rsrc_fork_cleanup ; + } ; + + rsrc.type_offset = rsrc.map_offset + 30 ; + + rsrc.type_count = read_short (rsrc.rsrc_data, rsrc.map_offset + 28) + 1 ; + if (rsrc.type_count < 1) + { psf_log_printf (psf, "Bad type count.\n") ; + error = SFE_SD2_BAD_RSRC ; + goto parse_rsrc_fork_cleanup ; + } ; + + rsrc.item_offset = rsrc.type_offset + rsrc.type_count * 8 ; + if (rsrc.item_offset < 0 || rsrc.item_offset > rsrc.rsrc_len) + { psf_log_printf (psf, "Bad item offset (%d).\n", rsrc.item_offset) ; + error = SFE_SD2_BAD_RSRC ; + goto parse_rsrc_fork_cleanup ; + } ; + + rsrc.str_index = -1 ; + for (k = 0 ; k < rsrc.type_count ; k ++) + { marker = read_marker (rsrc.rsrc_data, rsrc.type_offset + k * 8) ; + + if (marker == STR_MARKER) + { rsrc.str_index = k ; + rsrc.str_count = read_short (rsrc.rsrc_data, rsrc.type_offset + k * 8 + 4) + 1 ; + error = parse_str_rsrc (psf, &rsrc) ; + goto parse_rsrc_fork_cleanup ; + } ; + } ; + + psf_log_printf (psf, "No 'STR ' resource.\n") ; + error = SFE_SD2_BAD_RSRC ; + +parse_rsrc_fork_cleanup : + + psf_use_rsrc (psf, SF_FALSE) ; + + if (rsrc.need_to_free_rsrc_data) + free (rsrc.rsrc_data) ; + + return error ; +} /* sd2_parse_rsrc_fork */ + +static int +parse_str_rsrc (SF_PRIVATE *psf, SD2_RSRC * rsrc) +{ char name [32], value [32] ; + int k, str_offset, rsrc_id, data_offset = 0, data_len = 0 ; + + psf_log_printf (psf, "Finding parameters :\n") ; + + str_offset = rsrc->string_offset ; + psf_log_printf (psf, " Offset RsrcId dlen slen Value\n") ; + + for (k = 0 ; data_offset + data_len < rsrc->rsrc_len ; k++) + { int slen ; + + slen = read_char (rsrc->rsrc_data, str_offset) ; + read_str (rsrc->rsrc_data, str_offset + 1, name, SF_MIN (SIGNED_SIZEOF (name), slen + 1)) ; + str_offset += slen + 1 ; + + rsrc_id = read_short (rsrc->rsrc_data, rsrc->item_offset + k * 12) ; + + data_offset = rsrc->data_offset + read_int (rsrc->rsrc_data, rsrc->item_offset + k * 12 + 4) ; + if (data_offset < 0 || data_offset > rsrc->rsrc_len) + { psf_log_printf (psf, "Exiting parser on data offset of %d.\n", data_offset) ; + break ; + } ; + + data_len = read_int (rsrc->rsrc_data, data_offset) ; + if (data_len < 0 || data_len > rsrc->rsrc_len) + { psf_log_printf (psf, "Exiting parser on data length of %d.\n", data_len) ; + break ; + } ; + + slen = read_char (rsrc->rsrc_data, data_offset + 4) ; + read_str (rsrc->rsrc_data, data_offset + 5, value, SF_MIN (SIGNED_SIZEOF (value), slen + 1)) ; + + psf_log_printf (psf, " 0x%04x %4d %4d %3d '%s'\n", data_offset, rsrc_id, data_len, slen, value) ; + + if (rsrc_id == 1000 && rsrc->sample_size == 0) + rsrc->sample_size = strtol (value, NULL, 10) ; + else if (rsrc_id == 1001 && rsrc->sample_rate == 0) + rsrc->sample_rate = strtol (value, NULL, 10) ; + else if (rsrc_id == 1002 && rsrc->channels == 0) + rsrc->channels = strtol (value, NULL, 10) ; + } ; + + psf_log_printf (psf, "Found Parameters :\n") ; + psf_log_printf (psf, " sample-size : %d\n", rsrc->sample_size) ; + psf_log_printf (psf, " sample-rate : %d\n", rsrc->sample_rate) ; + psf_log_printf (psf, " channels : %d\n", rsrc->channels) ; + + if (rsrc->sample_rate <= 4 && rsrc->sample_size > 4) + { int temp ; + + psf_log_printf (psf, "Geez!! Looks like sample rate and sample size got switched.\nCorrecting this screw up.\n") ; + temp = rsrc->sample_rate ; + rsrc->sample_rate = rsrc->sample_size ; + rsrc->sample_size = temp ; + } ; + + if (rsrc->sample_rate < 0) + { psf_log_printf (psf, "Bad sample rate (%d)\n", rsrc->sample_rate) ; + return SFE_SD2_BAD_RSRC ; + } ; + + if (rsrc->channels < 0) + { psf_log_printf (psf, "Bad channel count (%d)\n", rsrc->channels) ; + return SFE_SD2_BAD_RSRC ; + } ; + + psf->sf.samplerate = rsrc->sample_rate ; + psf->sf.channels = rsrc->channels ; + psf->bytewidth = rsrc->sample_size ; + + switch (rsrc->sample_size) + { case 1 : + psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_S8 ; + break ; + + case 2 : + psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_16 ; + break ; + + case 3 : + psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_24 ; + break ; + + default : + psf_log_printf (psf, "Bad sample size (%d)\n", rsrc->sample_size) ; + return SFE_SD2_BAD_SAMPLE_SIZE ; + } ; + + psf_log_printf (psf, "ok\n") ; + + return 0 ; +} /* parse_str_rsrc */ + diff --git a/src/sds.c b/src/sds.c new file mode 100644 index 0000000..17c7036 --- /dev/null +++ b/src/sds.c @@ -0,0 +1,1005 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +*/ + +#define SDS_DATA_OFFSET 0x15 +#define SDS_BLOCK_SIZE 127 + +#define SDS_AUDIO_BYTES_PER_BLOCK 120 + +#define SDS_3BYTE_TO_INT_DECODE(x) (((x) & 0x7F) | (((x) & 0x7F00) >> 1) | (((x) & 0x7F0000) >> 2)) +#define SDS_INT_TO_3BYTE_ENCODE(x) (((x) & 0x7F) | (((x) << 1) & 0x7F00) | (((x) << 2) & 0x7F0000)) + +/*------------------------------------------------------------------------------ +** Typedefs. +*/ + +typedef struct tag_SDS_PRIVATE +{ int bitwidth, frames ; + int samplesperblock, total_blocks ; + + int (*reader) (SF_PRIVATE *psf, struct tag_SDS_PRIVATE *psds) ; + int (*writer) (SF_PRIVATE *psf, struct tag_SDS_PRIVATE *psds) ; + + int read_block, read_count ; + unsigned char read_data [SDS_BLOCK_SIZE] ; + int read_samples [SDS_BLOCK_SIZE / 2] ; /* Maximum samples per block */ + + int write_block, write_count ; + int total_written ; + unsigned char write_data [SDS_BLOCK_SIZE] ; + int write_samples [SDS_BLOCK_SIZE / 2] ; /* Maximum samples per block */ +} SDS_PRIVATE ; + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int sds_close (SF_PRIVATE *psf) ; + +static int sds_write_header (SF_PRIVATE *psf, int calc_length) ; +static int sds_read_header (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; + +static int sds_init (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; + +static sf_count_t sds_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t sds_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t sds_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t sds_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t sds_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t sds_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t sds_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t sds_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t sds_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +static int sds_2byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; +static int sds_3byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; +static int sds_4byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; + +static int sds_read (SF_PRIVATE *psf, SDS_PRIVATE *psds, int *iptr, int readcount) ; + +static int sds_2byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; +static int sds_3byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; +static int sds_4byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) ; + +static int sds_write (SF_PRIVATE *psf, SDS_PRIVATE *psds, const int *iptr, int writecount) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +sds_open (SF_PRIVATE *psf) +{ SDS_PRIVATE *psds ; + int error = 0 ; + + /* Hmmmm, need this here to pass update_header_test. */ + psf->sf.frames = 0 ; + + if (! (psds = calloc (1, sizeof (SDS_PRIVATE)))) + return SFE_MALLOC_FAILED ; + psf->codec_data = psds ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = sds_read_header (psf, psds))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_SDS) + return SFE_BAD_OPEN_FORMAT ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (sds_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = sds_write_header ; + + psf_fseek (psf, SDS_DATA_OFFSET, SEEK_SET) ; + } ; + + if ((error = sds_init (psf, psds)) != 0) + return error ; + + psf->seek = sds_seek ; + psf->container_close = sds_close ; + + psf->blockwidth = 0 ; + + return error ; +} /* sds_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +sds_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { SDS_PRIVATE *psds ; + + if ((psds = (SDS_PRIVATE *) psf->codec_data) == NULL) + { psf_log_printf (psf, "*** Bad psf->codec_data ptr.\n") ; + return SFE_INTERNAL ; + } ; + + if (psds->write_count > 0) + { memset (&(psds->write_data [psds->write_count]), 0, (psds->samplesperblock - psds->write_count) * sizeof (int)) ; + psds->writer (psf, psds) ; + } ; + + sds_write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* sds_close */ + +static int +sds_init (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ + if (psds->bitwidth < 8 || psds->bitwidth > 28) + return (psf->error = SFE_SDS_BAD_BIT_WIDTH) ; + + if (psds->bitwidth < 14) + { psds->reader = sds_2byte_read ; + psds->writer = sds_2byte_write ; + psds->samplesperblock = SDS_AUDIO_BYTES_PER_BLOCK / 2 ; + } + else if (psds->bitwidth < 21) + { psds->reader = sds_3byte_read ; + psds->writer = sds_3byte_write ; + psds->samplesperblock = SDS_AUDIO_BYTES_PER_BLOCK / 3 ; + } + else + { psds->reader = sds_4byte_read ; + psds->writer = sds_4byte_write ; + psds->samplesperblock = SDS_AUDIO_BYTES_PER_BLOCK / 4 ; + } ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { psf->read_short = sds_read_s ; + psf->read_int = sds_read_i ; + psf->read_float = sds_read_f ; + psf->read_double = sds_read_d ; + + /* Read first block. */ + psds->reader (psf, psds) ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->write_short = sds_write_s ; + psf->write_int = sds_write_i ; + psf->write_float = sds_write_f ; + psf->write_double = sds_write_d ; + } ; + + return 0 ; +} /* sds_init */ + +static int +sds_read_header (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char channel, bitwidth, loop_type, byte ; + unsigned short sample_no, marker ; + unsigned int samp_period, data_length, sustain_loop_start, sustain_loop_end ; + int bytesread, blockcount ; + + /* Set position to start of file to begin reading header. */ + bytesread = psf_binheader_readf (psf, "pE211", 0, &marker, &channel, &byte) ; + + if (marker != 0xF07E || byte != 0x01) + return SFE_SDS_NOT_SDS ; + + bytesread += psf_binheader_readf (psf, "e2", &sample_no) ; + sample_no = SDS_3BYTE_TO_INT_DECODE (sample_no) ; + + psf_log_printf (psf, "Midi Sample Dump Standard (.sds)\nF07E\n" + " Midi Channel : %d\n Sample Number : %d\n", + channel, sample_no) ; + + bytesread += psf_binheader_readf (psf, "e13", &bitwidth, &samp_period) ; + + samp_period = SDS_3BYTE_TO_INT_DECODE (samp_period) ; + + psds->bitwidth = bitwidth ; + + if (psds->bitwidth > 1) + psf_log_printf (psf, " Bit Width : %d\n", psds->bitwidth) ; + else + { psf_log_printf (psf, " Bit Width : %d (should be > 1)\n", psds->bitwidth) ; + return SFE_SDS_BAD_BIT_WIDTH ; + } ; + + if (samp_period > 0) + { psf->sf.samplerate = 1000000000 / samp_period ; + + psf_log_printf (psf, " Sample Period : %d\n" + " Sample Rate : %d\n", + samp_period, psf->sf.samplerate) ; + } + else + { psf->sf.samplerate = 16000 ; + + psf_log_printf (psf, " Sample Period : %d (should be > 0)\n" + " Sample Rate : %d (guessed)\n", + samp_period, psf->sf.samplerate) ; + } ; + + bytesread += psf_binheader_readf (psf, "e3331", &data_length, &sustain_loop_start, &sustain_loop_end, &loop_type) ; + + data_length = SDS_3BYTE_TO_INT_DECODE (data_length) ; + + psf->sf.frames = psds->frames = data_length ; + + sustain_loop_start = SDS_3BYTE_TO_INT_DECODE (sustain_loop_start) ; + sustain_loop_end = SDS_3BYTE_TO_INT_DECODE (sustain_loop_end) ; + + psf_log_printf (psf, " Sustain Loop\n" + " Start : %d\n" + " End : %d\n" + " Loop Type : %d\n", + sustain_loop_start, sustain_loop_end, loop_type) ; + + psf->dataoffset = SDS_DATA_OFFSET ; + psf->datalength = psf->filelength - psf->dataoffset ; + + bytesread += psf_binheader_readf (psf, "1", &byte) ; + if (byte != 0xF7) + psf_log_printf (psf, "bad end : %X\n", byte & 0xFF) ; + + for (blockcount = 0 ; bytesread < psf->filelength ; blockcount++) + { + bytesread += psf_fread (&marker, 1, 2, psf) ; + + if (marker == 0) + break ; + + psf_fseek (psf, SDS_BLOCK_SIZE - 2, SEEK_CUR) ; + bytesread += SDS_BLOCK_SIZE - 2 ; + } ; + + psf_log_printf (psf, "\nBlocks : %d\n", blockcount) ; + psds->total_blocks = blockcount ; + + psds->samplesperblock = SDS_AUDIO_BYTES_PER_BLOCK / ((psds->bitwidth + 6) / 7) ; + psf_log_printf (psf, "Samples/Block : %d\n", psds->samplesperblock) ; + + psf_log_printf (psf, "Frames : %d\n", blockcount * psds->samplesperblock) ; + + /* Always Mono */ + psf->sf.channels = 1 ; + psf->sf.sections = 1 ; + + /* + ** Lie to the user about PCM bit width. Always round up to + ** the next multiple of 8. + */ + switch ((psds->bitwidth + 7) / 8) + { case 1 : + psf->sf.format = SF_FORMAT_SDS | SF_FORMAT_PCM_S8 ; + break ; + + case 2 : + psf->sf.format = SF_FORMAT_SDS | SF_FORMAT_PCM_16 ; + break ; + + case 3 : + psf->sf.format = SF_FORMAT_SDS | SF_FORMAT_PCM_24 ; + break ; + + case 4 : + psf->sf.format = SF_FORMAT_SDS | SF_FORMAT_PCM_32 ; + break ; + + default : + psf_log_printf (psf, "*** Weird byte width (%d)\n", (psds->bitwidth + 7) / 8) ; + return SFE_SDS_BAD_BIT_WIDTH ; + } ; + + psf_fseek (psf, SDS_DATA_OFFSET, SEEK_SET) ; + + return 0 ; +} /* sds_read_header */ + +static int +sds_write_header (SF_PRIVATE *psf, int calc_length) +{ SDS_PRIVATE *psds ; + sf_count_t current ; + int samp_period, data_length, sustain_loop_start, sustain_loop_end ; + unsigned char loop_type = 0 ; + + if ((psds = (SDS_PRIVATE *) psf->codec_data) == NULL) + { psf_log_printf (psf, "*** Bad psf->codec_data ptr.\n") ; + return SFE_INTERNAL ; + } ; + + if (psf->pipeoffset > 0) + return 0 ; + + current = psf_ftell (psf) ; + + if (calc_length) + psf->sf.frames = psds->total_written ; + + if (psds->write_count > 0) + { int current_count = psds->write_count ; + int current_block = psds->write_block ; + + psds->writer (psf, psds) ; + + psf_fseek (psf, -1 * SDS_BLOCK_SIZE, SEEK_CUR) ; + + psds->write_count = current_count ; + psds->write_block = current_block ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + if (psf->is_pipe == SF_FALSE) + psf_fseek (psf, 0, SEEK_SET) ; + + psf_binheader_writef (psf, "E211", 0xF07E, 0, 1) ; + + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + psds->bitwidth = 8 ; + break ; + case SF_FORMAT_PCM_16 : + psds->bitwidth = 16 ; + break ; + case SF_FORMAT_PCM_24 : + psds->bitwidth = 24 ; + break ; + default: + return SFE_SDS_BAD_BIT_WIDTH ; + } ; + + samp_period = SDS_INT_TO_3BYTE_ENCODE (1000000000 / psf->sf.samplerate) ; + + psf_binheader_writef (psf, "e213", 0, psds->bitwidth, samp_period) ; + + data_length = SDS_INT_TO_3BYTE_ENCODE (psds->total_written) ; + sustain_loop_start = SDS_INT_TO_3BYTE_ENCODE (0) ; + sustain_loop_end = SDS_INT_TO_3BYTE_ENCODE (0) ; + + psf_binheader_writef (psf, "e33311", data_length, sustain_loop_start, sustain_loop_end, loop_type, 0xF7) ; + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + psf->datalength = psds->write_block * SDS_BLOCK_SIZE ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* sds_write_header */ + + +/*------------------------------------------------------------------------------ +*/ + +static int +sds_2byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->read_block ++ ; + psds->read_count = 0 ; + + if (psds->read_block * psds->samplesperblock > psds->frames) + { memset (psds->read_samples, 0, psds->samplesperblock * sizeof (int)) ; + return 1 ; + } ; + + if ((k = psf_fread (psds->read_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + if (psds->read_data [0] != 0xF0) + { printf ("Error A : %02X\n", psds->read_data [0] & 0xFF) ; + } ; + + checksum = psds->read_data [1] ; + if (checksum != 0x7E) + { printf ("Error 1 : %02X\n", checksum & 0xFF) ; + } + + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->read_data [k] ; + + checksum &= 0x7F ; + + if (checksum != psds->read_data [SDS_BLOCK_SIZE - 2]) + { psf_log_printf (psf, "Block %d : checksum is %02X should be %02X\n", psds->read_data [4], checksum, psds->read_data [SDS_BLOCK_SIZE - 2]) ; + } ; + + ucptr = psds->read_data + 5 ; + for (k = 0 ; k < 120 ; k += 2) + { sample = (ucptr [k] << 25) + (ucptr [k + 1] << 18) ; + psds->read_samples [k / 2] = (int) (sample - 0x80000000) ; + } ; + + return 1 ; +} /* sds_2byte_read */ + +static int +sds_3byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->read_block ++ ; + psds->read_count = 0 ; + + if (psds->read_block * psds->samplesperblock > psds->frames) + { memset (psds->read_samples, 0, psds->samplesperblock * sizeof (int)) ; + return 1 ; + } ; + + if ((k = psf_fread (psds->read_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + if (psds->read_data [0] != 0xF0) + { printf ("Error A : %02X\n", psds->read_data [0] & 0xFF) ; + } ; + + checksum = psds->read_data [1] ; + if (checksum != 0x7E) + { printf ("Error 1 : %02X\n", checksum & 0xFF) ; + } + + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->read_data [k] ; + + checksum &= 0x7F ; + + if (checksum != psds->read_data [SDS_BLOCK_SIZE - 2]) + { psf_log_printf (psf, "Block %d : checksum is %02X should be %02X\n", psds->read_data [4], checksum, psds->read_data [SDS_BLOCK_SIZE - 2]) ; + } ; + + ucptr = psds->read_data + 5 ; + for (k = 0 ; k < 120 ; k += 3) + { sample = (ucptr [k] << 25) + (ucptr [k + 1] << 18) + (ucptr [k + 2] << 11) ; + psds->read_samples [k / 3] = (int) (sample - 0x80000000) ; + } ; + + return 1 ; +} /* sds_3byte_read */ + +static int +sds_4byte_read (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->read_block ++ ; + psds->read_count = 0 ; + + if (psds->read_block * psds->samplesperblock > psds->frames) + { memset (psds->read_samples, 0, psds->samplesperblock * sizeof (int)) ; + return 1 ; + } ; + + if ((k = psf_fread (psds->read_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + if (psds->read_data [0] != 0xF0) + { printf ("Error A : %02X\n", psds->read_data [0] & 0xFF) ; + } ; + + checksum = psds->read_data [1] ; + if (checksum != 0x7E) + { printf ("Error 1 : %02X\n", checksum & 0xFF) ; + } + + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->read_data [k] ; + + checksum &= 0x7F ; + + if (checksum != psds->read_data [SDS_BLOCK_SIZE - 2]) + { psf_log_printf (psf, "Block %d : checksum is %02X should be %02X\n", psds->read_data [4], checksum, psds->read_data [SDS_BLOCK_SIZE - 2]) ; + } ; + + ucptr = psds->read_data + 5 ; + for (k = 0 ; k < 120 ; k += 4) + { sample = (ucptr [k] << 25) + (ucptr [k + 1] << 18) + (ucptr [k + 2] << 11) + (ucptr [k + 3] << 4) ; + psds->read_samples [k / 4] = (int) (sample - 0x80000000) ; + } ; + + return 1 ; +} /* sds_4byte_read */ + + +static sf_count_t +sds_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = sds_read (psf, psds, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = iptr [k] >> 16 ; + total += count ; + len -= readcount ; + } ; + + return total ; +} /* sds_read_s */ + +static sf_count_t +sds_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int total ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + + total = sds_read (psf, psds, ptr, len) ; + + return total ; +} /* sds_read_i */ + +static sf_count_t +sds_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + + if (psf->norm_float == SF_TRUE) + normfact = 1.0 / 0x80000000 ; + else + normfact = 1.0 / (1 << psds->bitwidth) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = sds_read (psf, psds, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * iptr [k] ; + total += count ; + len -= readcount ; + } ; + + return total ; +} /* sds_read_f */ + +static sf_count_t +sds_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + + if (psf->norm_double == SF_TRUE) + normfact = 1.0 / 0x80000000 ; + else + normfact = 1.0 / (1 << psds->bitwidth) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = sds_read (psf, psds, iptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * iptr [k] ; + total += count ; + len -= readcount ; + } ; + + return total ; +} /* sds_read_d */ + +static int +sds_read (SF_PRIVATE *psf, SDS_PRIVATE *psds, int *ptr, int len) +{ int count, total = 0 ; + + while (total < len) + { if (psds->read_block * psds->samplesperblock >= psds->frames) + { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ; + return total ; + } ; + + if (psds->read_count >= psds->samplesperblock) + psds->reader (psf, psds) ; + + count = (psds->samplesperblock - psds->read_count) ; + count = (len - total > count) ? count : len - total ; + + memcpy (&(ptr [total]), &(psds->read_samples [psds->read_count]), count * sizeof (int)) ; + total += count ; + psds->read_count += count ; + } ; + + return total ; +} /* sds_read */ + +/*============================================================================== +*/ + +static sf_count_t +sds_seek (SF_PRIVATE *psf, int mode, sf_count_t seek_from_start) +{ SDS_PRIVATE *psds ; + sf_count_t file_offset ; + int newblock, newsample ; + + if ((psds = psf->codec_data) == NULL) + { psf->error = SFE_INTERNAL ; + return PSF_SEEK_ERROR ; + } ; + + if (psf->datalength < 0 || psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (seek_from_start < 0 || seek_from_start > psf->sf.frames) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (mode == SFM_READ && psds->write_count > 0) + psds->writer (psf, psds) ; + + newblock = seek_from_start / psds->samplesperblock ; + newsample = seek_from_start % psds->samplesperblock ; + + switch (mode) + { case SFM_READ : + if (newblock > psds->total_blocks) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + file_offset = psf->dataoffset + newblock * SDS_BLOCK_SIZE ; + + if (psf_fseek (psf, file_offset, SEEK_SET) != file_offset) + { psf->error = SFE_SEEK_FAILED ; + return PSF_SEEK_ERROR ; + } ; + + psds->read_block = newblock ; + psds->reader (psf, psds) ; + psds->read_count = newsample ; + break ; + + case SFM_WRITE : + if (newblock > psds->total_blocks) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + file_offset = psf->dataoffset + newblock * SDS_BLOCK_SIZE ; + + if (psf_fseek (psf, file_offset, SEEK_SET) != file_offset) + { psf->error = SFE_SEEK_FAILED ; + return PSF_SEEK_ERROR ; + } ; + + psds->write_block = newblock ; + psds->reader (psf, psds) ; + psds->write_count = newsample ; + break ; + + default : + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + break ; + } ; + + return seek_from_start ; +} /* sds_seek */ + +/*============================================================================== +*/ + +static int +sds_2byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->write_data [0] = 0xF0 ; + psds->write_data [1] = 0x7E ; + psds->write_data [2] = 0 ; /* Channel number */ + psds->write_data [3] = 2 ; + psds->write_data [4] = psds->write_block & 0x7F ; /* Packet number */ + + ucptr = psds->write_data + 5 ; + for (k = 0 ; k < 120 ; k += 2) + { sample = psds->write_samples [k / 2] ; + sample += 0x80000000 ; + ucptr [k] = (sample >> 25) & 0x7F ; + ucptr [k + 1] = (sample >> 18) & 0x7F ; + } ; + + checksum = psds->write_data [1] ; + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->write_data [k] ; + checksum &= 0x7F ; + + psds->write_data [SDS_BLOCK_SIZE - 2] = checksum ; + psds->write_data [SDS_BLOCK_SIZE - 1] = 0xF7 ; + + if ((k = psf_fwrite (psds->write_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : psf_fwrite (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + psds->write_block ++ ; + psds->write_count = 0 ; + + if (psds->write_block > psds->total_blocks) + psds->total_blocks = psds->write_block ; + psds->frames = psds->total_blocks * psds->samplesperblock ; + + return 1 ; +} /* sds_2byte_write */ + +static int +sds_3byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->write_data [0] = 0xF0 ; + psds->write_data [1] = 0x7E ; + psds->write_data [2] = 0 ; /* Channel number */ + psds->write_data [3] = 2 ; + psds->write_data [4] = psds->write_block & 0x7F ; /* Packet number */ + + ucptr = psds->write_data + 5 ; + for (k = 0 ; k < 120 ; k += 3) + { sample = psds->write_samples [k / 3] ; + sample += 0x80000000 ; + ucptr [k] = (sample >> 25) & 0x7F ; + ucptr [k + 1] = (sample >> 18) & 0x7F ; + ucptr [k + 2] = (sample >> 11) & 0x7F ; + } ; + + checksum = psds->write_data [1] ; + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->write_data [k] ; + checksum &= 0x7F ; + + psds->write_data [SDS_BLOCK_SIZE - 2] = checksum ; + psds->write_data [SDS_BLOCK_SIZE - 1] = 0xF7 ; + + if ((k = psf_fwrite (psds->write_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : psf_fwrite (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + psds->write_block ++ ; + psds->write_count = 0 ; + + if (psds->write_block > psds->total_blocks) + psds->total_blocks = psds->write_block ; + psds->frames = psds->total_blocks * psds->samplesperblock ; + + return 1 ; +} /* sds_3byte_write */ + +static int +sds_4byte_write (SF_PRIVATE *psf, SDS_PRIVATE *psds) +{ unsigned char *ucptr, checksum ; + unsigned int sample ; + int k ; + + psds->write_data [0] = 0xF0 ; + psds->write_data [1] = 0x7E ; + psds->write_data [2] = 0 ; /* Channel number */ + psds->write_data [3] = 2 ; + psds->write_data [4] = psds->write_block & 0x7F ; /* Packet number */ + + ucptr = psds->write_data + 5 ; + for (k = 0 ; k < 120 ; k += 4) + { sample = psds->write_samples [k / 4] ; + sample += 0x80000000 ; + ucptr [k] = (sample >> 25) & 0x7F ; + ucptr [k + 1] = (sample >> 18) & 0x7F ; + ucptr [k + 2] = (sample >> 11) & 0x7F ; + ucptr [k + 3] = (sample >> 4) & 0x7F ; + } ; + + checksum = psds->write_data [1] ; + for (k = 2 ; k <= SDS_BLOCK_SIZE - 3 ; k ++) + checksum ^= psds->write_data [k] ; + checksum &= 0x7F ; + + psds->write_data [SDS_BLOCK_SIZE - 2] = checksum ; + psds->write_data [SDS_BLOCK_SIZE - 1] = 0xF7 ; + + if ((k = psf_fwrite (psds->write_data, 1, SDS_BLOCK_SIZE, psf)) != SDS_BLOCK_SIZE) + psf_log_printf (psf, "*** Warning : psf_fwrite (%d != %d).\n", k, SDS_BLOCK_SIZE) ; + + psds->write_block ++ ; + psds->write_count = 0 ; + + if (psds->write_block > psds->total_blocks) + psds->total_blocks = psds->write_block ; + psds->frames = psds->total_blocks * psds->samplesperblock ; + + return 1 ; +} /* sds_4byte_write */ + +static sf_count_t +sds_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + psds->total_written += len ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = ptr [total + k] << 16 ; + count = sds_write (psf, psds, iptr, writecount) ; + total += count ; + len -= writecount ; + } ; + + return total ; +} /* sds_write_s */ + +static sf_count_t +sds_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int total ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + psds->total_written += len ; + + total = sds_write (psf, psds, ptr, len) ; + + return total ; +} /* sds_write_i */ + +static sf_count_t +sds_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + psds->total_written += len ; + + if (psf->norm_float == SF_TRUE) + normfact = 1.0 * 0x80000000 ; + else + normfact = 1.0 * (1 << psds->bitwidth) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = normfact * ptr [total + k] ; + count = sds_write (psf, psds, iptr, writecount) ; + total += count ; + len -= writecount ; + } ; + + return total ; +} /* sds_write_f */ + +static sf_count_t +sds_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ SDS_PRIVATE *psds ; + int *iptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->codec_data == NULL) + return 0 ; + psds = (SDS_PRIVATE*) psf->codec_data ; + psds->total_written += len ; + + if (psf->norm_double == SF_TRUE) + normfact = 1.0 * 0x80000000 ; + else + normfact = 1.0 * (1 << psds->bitwidth) ; + + iptr = psf->u.ibuf ; + bufferlen = ARRAY_LEN (psf->u.ibuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : len ; + for (k = 0 ; k < writecount ; k++) + iptr [k] = normfact * ptr [total + k] ; + count = sds_write (psf, psds, iptr, writecount) ; + total += count ; + len -= writecount ; + } ; + + return total ; +} /* sds_write_d */ + +static int +sds_write (SF_PRIVATE *psf, SDS_PRIVATE *psds, const int *ptr, int len) +{ int count, total = 0 ; + + while (total < len) + { count = psds->samplesperblock - psds->write_count ; + if (count > len - total) + count = len - total ; + + memcpy (&(psds->write_samples [psds->write_count]), &(ptr [total]), count * sizeof (int)) ; + total += count ; + psds->write_count += count ; + + if (psds->write_count >= psds->samplesperblock) + psds->writer (psf, psds) ; + } ; + + return total ; +} /* sds_write */ + diff --git a/src/sf_unistd.h b/src/sf_unistd.h new file mode 100644 index 0000000..9fca68e --- /dev/null +++ b/src/sf_unistd.h @@ -0,0 +1,63 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* Some defines that microsoft 'forgot' to implement. */ + +#ifndef S_IRWXU +#define S_IRWXU 0000700 /* rwx, owner */ +#endif + +#ifndef S_IRUSR +#define S_IRUSR 0000400 /* read permission, owner */ +#endif + +#ifndef S_IWUSR +#define S_IWUSR 0000200 /* write permission, owner */ +#endif + +#ifndef S_IXUSR +#define S_IXUSR 0000100 /* execute/search permission, owner */ +#endif + +/* Windows doesn't have group permissions so set all these to zero. */ +#define S_IRWXG 0 /* rwx, group */ +#define S_IRGRP 0 /* read permission, group */ +#define S_IWGRP 0 /* write permission, grougroup */ +#define S_IXGRP 0 /* execute/search permission, group */ + +/* Windows doesn't have others permissions so set all these to zero. */ +#define S_IRWXO 0 /* rwx, other */ +#define S_IROTH 0 /* read permission, other */ +#define S_IWOTH 0 /* write permission, other */ +#define S_IXOTH 0 /* execute/search permission, other */ + +#ifndef S_ISFIFO +#define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO) +#endif + +#ifndef S_ISREG +#define S_ISREG(mode) (((mode) & _S_IFREG) == _S_IFREG) +#endif + +/* +** Don't know if these are still needed. +** +** #define _IFMT _S_IFMT +** #define _IFREG _S_IFREG +*/ + diff --git a/src/sfconfig.h b/src/sfconfig.h new file mode 100644 index 0000000..f7f5a80 --- /dev/null +++ b/src/sfconfig.h @@ -0,0 +1,113 @@ +/* +** Copyright (C) 2005-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** Autoconf leaves many config parameters undefined. +** Here we change then from being undefined to defining them to 0. +** This allows things like: +** +** #if HAVE_CONFIG_PARAM +** +** and +** +** if (HAVE_CONFIG_PARAM) +** do_something () ; +*/ + +#ifndef SFCONFIG_H +#define SFCONFIG_H + +/* Include the Autoconf generated file. */ +#include "config.h" + +/* Now fiddle the values. */ + +#ifndef HAVE_ALSA_ASOUNDLIB_H +#define HAVE_ALSA_ASOUNDLIB_H 0 +#endif + +#ifndef HAVE_BYTESWAP_H +#define HAVE_BYTESWAP_H 0 +#endif + +#ifndef HAVE_DECL_S_IRGRP +#define HAVE_DECL_S_IRGRP 0 +#endif + +#ifndef HAVE_ENDIAN_H +#define HAVE_ENDIAN_H 0 +#endif + +#ifndef HAVE_FSYNC +#define HAVE_FSYNC 0 +#endif + +#ifndef HAVE_LOCALE_H +#define HAVE_LOCALE_H 0 +#endif + +#ifndef HAVE_LRINT +#define HAVE_LRINT 0 +#endif + +#ifndef HAVE_LRINTF +#define HAVE_LRINTF 0 +#endif + +#ifndef HAVE_MMAP +#define HAVE_MMAP 0 +#endif + +#ifndef HAVE_PREAD +#define HAVE_PREAD 0 +#endif + +#ifndef HAVE_PWRITE +#define HAVE_PWRITE 0 +#endif + +#ifndef HAVE_SETLOCALE +#define HAVE_SETLOCALE 0 +#endif + +#ifndef HAVE_SQLITE3 +#define HAVE_SQLITE3 0 +#endif + +#ifndef HAVE_STDINT_H +#define HAVE_STDINT_H 0 +#endif + +#ifndef HAVE_SYS_WAIT_H +#define HAVE_SYS_WAIT_H 0 +#endif + +#ifndef HAVE_UNISTD_H +#define HAVE_UNISTD_H 0 +#endif + +#ifndef HAVE_PIPE +#define HAVE_PIPE 0 +#endif + +#ifndef HAVE_WAITPID +#define HAVE_WAITPID 0 +#endif + +#endif + diff --git a/src/sfendian.h b/src/sfendian.h new file mode 100644 index 0000000..386361c --- /dev/null +++ b/src/sfendian.h @@ -0,0 +1,254 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifndef SFENDIAN_INCLUDED +#define SFENDIAN_INCLUDED + +#include "sfconfig.h" + +#if HAVE_STDINT_H +#include <stdint.h> +#elif HAVE_INTTYPES_H +#include <inttypes.h> +#endif + +#if (defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8)) +/* Good, we have int64_t. */ +#elif (defined (SIZEOF_LONG_LONG) && (SIZEOF_LONG_LONG == 8)) +typedef long long int64_t ; +#elif (defined (SIZEOF_LONG) && (SIZEOF_LONG == 8)) +typedef long int64_t ; +#elif (defined (WIN32) || defined (_WIN32)) +typedef __int64 int64_t ; +#else +#error "No 64 bit integer type." +#endif + +#if HAVE_BYTESWAP_H + +#include <byteswap.h> + +#define ENDSWAP_SHORT(x) ((short) bswap_16 (x)) +#define ENDSWAP_INT(x) ((int) bswap_32 (x)) + +#else + +#define ENDSWAP_SHORT(x) ((((x) >> 8) & 0xFF) + (((x) & 0xFF) << 8)) +#define ENDSWAP_INT(x) ((((x) >> 24) & 0xFF) + (((x) >> 8) & 0xFF00) + (((x) & 0xFF00) << 8) + (((x) & 0xFF) << 24)) + +#endif + +/* +** Many file types (ie WAV, AIFF) use sets of four consecutive bytes as a +** marker indicating different sections of the file. +** The following MAKE_MARKER macro allows th creation of integer constants +** for these markers. +*/ + +#if (CPU_IS_LITTLE_ENDIAN == 1) + #define MAKE_MARKER(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24)) +#elif (CPU_IS_BIG_ENDIAN == 1) + #define MAKE_MARKER(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) +#else + #error "Target CPU endian-ness unknown. May need to hand edit src/sfconfig.h" +#endif + +/* +** Macros to handle reading of data of a specific endian-ness into host endian +** shorts and ints. The single input is an unsigned char* pointer to the start +** of the object. There are two versions of each macro as we need to deal with +** both big and little endian CPUs. +*/ + +#if (CPU_IS_LITTLE_ENDIAN == 1) + #define LES2H_SHORT(x) (x) + #define LEI2H_INT(x) (x) + + #define BES2H_SHORT(x) ENDSWAP_SHORT (x) + #define BEI2H_INT(x) ENDSWAP_INT (x) + + #define H2BE_SHORT(x) ENDSWAP_SHORT (x) + #define H2BE_INT(x) ENDSWAP_INT (x) + +#elif (CPU_IS_BIG_ENDIAN == 1) + #define LES2H_SHORT(x) ENDSWAP_SHORT (x) + #define LEI2H_INT(x) ENDSWAP_INT (x) + + #define BES2H_SHORT(x) (x) + #define BEI2H_INT(x) (x) + + #define H2LE_SHORT(x) ENDSWAP_SHORT (x) + #define H2LE_INT(x) ENDSWAP_INT (x) + +#else + #error "Target CPU endian-ness unknown. May need to hand edit src/sfconfig.h" +#endif + +#define LET2H_SHORT_PTR(x) ((x) [1] + ((x) [2] << 8)) +#define LET2H_INT_PTR(x) (((x) [0] << 8) + ((x) [1] << 16) + ((x) [2] << 24)) + +#define BET2H_SHORT_PTR(x) (((x) [0] << 8) + (x) [1]) +#define BET2H_INT_PTR(x) (((x) [0] << 24) + ((x) [1] << 16) + ((x) [2] << 8)) + +/*----------------------------------------------------------------------------------------------- +** Generic functions for performing endian swapping on integer arrays. +*/ + +static inline void +endswap_short_array (short *ptr, int len) +{ short temp ; + + while (--len >= 0) + { temp = ptr [len] ; + ptr [len] = ENDSWAP_SHORT (temp) ; + } ; +} /* endswap_short_array */ + +static inline void +endswap_short_copy (short *dest, const short *src, int len) +{ + while (--len >= 0) + { dest [len] = ENDSWAP_SHORT (src [len]) ; + } ; +} /* endswap_short_copy */ + +static inline void +endswap_int_array (int *ptr, int len) +{ int temp ; + + while (--len >= 0) + { temp = ptr [len] ; + ptr [len] = ENDSWAP_INT (temp) ; + } ; +} /* endswap_int_array */ + +static inline void +endswap_int_copy (int *dest, const int *src, int len) +{ + while (--len >= 0) + { dest [len] = ENDSWAP_INT (src [len]) ; + } ; +} /* endswap_int_copy */ + +/*======================================================================================== +*/ + +#if (HAVE_BYTESWAP_H && defined (SIZEOF_INT64_T) && (SIZEOF_INT64_T == 8)) + +static inline void +endswap_int64_t_array (int64_t *ptr, int len) +{ int64_t value ; + + while (--len >= 0) + { value = ptr [len] ; + ptr [len] = bswap_64 (value) ; + } ; +} /* endswap_int64_t_array */ + +static inline void +endswap_int64_t_copy (int64_t *dest, const int64_t *src, int len) +{ int64_t value ; + + while (--len >= 0) + { value = src [len] ; + dest [len] = bswap_64 (value) ; + } ; +} /* endswap_int64_t_copy */ + +#else + +static inline void +endswap_int64_t_array (int64_t *ptr, int len) +{ unsigned char *ucptr, temp ; + + ucptr = (unsigned char *) ptr ; + ucptr += 8 * len ; + while (--len >= 0) + { ucptr -= 8 ; + + temp = ucptr [0] ; + ucptr [0] = ucptr [7] ; + ucptr [7] = temp ; + + temp = ucptr [1] ; + ucptr [1] = ucptr [6] ; + ucptr [6] = temp ; + + temp = ucptr [2] ; + ucptr [2] = ucptr [5] ; + ucptr [5] = temp ; + + temp = ucptr [3] ; + ucptr [3] = ucptr [4] ; + ucptr [4] = temp ; + } ; +} /* endswap_int64_t_array */ + +static inline void +endswap_int64_t_copy (int64_t *dest, const int64_t *src, int len) +{ const unsigned char *psrc ; + unsigned char *pdest ; + + if (dest == src) + { endswap_int64_t_array (dest, len) ; + return ; + } ; + + psrc = ((const unsigned char *) src) + 8 * len ; + pdest = ((unsigned char *) dest) + 8 * len ; + while (--len >= 0) + { psrc -= 8 ; + pdest -= 8 ; + + pdest [0] = psrc [7] ; + pdest [2] = psrc [5] ; + pdest [4] = psrc [3] ; + pdest [6] = psrc [1] ; + pdest [7] = psrc [0] ; + pdest [1] = psrc [6] ; + pdest [3] = psrc [4] ; + pdest [5] = psrc [2] ; + } ; +} /* endswap_int64_t_copy */ + +#endif + +/* A couple of wrapper functions. */ + +static inline void +endswap_float_array (float *ptr, int len) +{ endswap_int_array ((void *) ptr, len) ; +} /* endswap_float_array */ + +static inline void +endswap_double_array (double *ptr, int len) +{ endswap_int64_t_array ((void *) ptr, len) ; +} /* endswap_double_array */ + +static inline void +endswap_float_copy (float *dest, const float *src, int len) +{ endswap_int_copy ((int *) dest, (const int *) src, len) ; +} /* endswap_float_copy */ + +static inline void +endswap_double_copy (double *dest, const double *src, int len) +{ endswap_int64_t_copy ((int64_t *) dest, (const int64_t *) src, len) ; +} /* endswap_double_copy */ + +#endif /* SFENDIAN_INCLUDED */ + diff --git a/src/sndfile.c b/src/sndfile.c new file mode 100644 index 0000000..d88a16c --- /dev/null +++ b/src/sndfile.c @@ -0,0 +1,2923 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <assert.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#define SNDFILE_MAGICK 0x1234C0DE + +#ifdef __APPLE__ + /* + ** Detect if a compile for a universal binary is being attempted and barf if it is. + ** See the URL below for the rationale. + */ + #ifdef __BIG_ENDIAN__ + #if (CPU_IS_LITTLE_ENDIAN == 1) + #error "Universal binary compile detected. See http://www.mega-nerd.com/libsndfile/FAQ.html#Q018" + #endif + #endif + + #ifdef __LITTLE_ENDIAN__ + #if (CPU_IS_BIG_ENDIAN == 1) + #error "Universal binary compile detected. See http://www.mega-nerd.com/libsndfile/FAQ.html#Q018" + #endif + #endif +#endif + + +typedef struct +{ int error ; + const char *str ; +} ErrorStruct ; + +static +ErrorStruct SndfileErrors [] = +{ + /* Public error values and their associated strings. */ + { SF_ERR_NO_ERROR , "No Error." }, + { SF_ERR_UNRECOGNISED_FORMAT , "Format not recognised." }, + { SF_ERR_SYSTEM , "System error." /* Often replaced. */ }, + { SF_ERR_MALFORMED_FILE , "Supported file format but file is malformed." }, + { SF_ERR_UNSUPPORTED_ENCODING , "Supported file format but unsupported encoding." }, + + /* Private error values and their associated strings. */ + { SFE_ZERO_MAJOR_FORMAT , "Error : major format is 0." }, + { SFE_ZERO_MINOR_FORMAT , "Error : minor format is 0." }, + { SFE_BAD_FILE , "File does not exist or is not a regular file (possibly a pipe?)." }, + { SFE_BAD_FILE_READ , "File exists but no data could be read." }, + { SFE_OPEN_FAILED , "Could not open file." }, + { SFE_BAD_SNDFILE_PTR , "Not a valid SNDFILE* pointer." }, + { SFE_BAD_SF_INFO_PTR , "NULL SF_INFO pointer passed to libsndfile." }, + { SFE_BAD_SF_INCOMPLETE , "SF_PRIVATE struct incomplete and end of header parsing." }, + { SFE_BAD_FILE_PTR , "Bad FILE pointer." }, + { SFE_BAD_INT_PTR , "Internal error, Bad pointer." }, + { SFE_BAD_STAT_SIZE , "Error : software was misconfigured at compile time (sizeof statbuf.st_size)." }, + + { SFE_MALLOC_FAILED , "Internal malloc () failed." }, + { SFE_UNIMPLEMENTED , "File contains data in an unimplemented format." }, + { SFE_BAD_READ_ALIGN , "Attempt to read a non-integer number of channels." }, + { SFE_BAD_WRITE_ALIGN , "Attempt to write a non-integer number of channels." }, + { SFE_UNKNOWN_FORMAT , "File contains data in an unknown format." }, + { SFE_NOT_READMODE , "Read attempted on file currently open for write." }, + { SFE_NOT_WRITEMODE , "Write attempted on file currently open for read." }, + { SFE_BAD_MODE_RW , "Error : This file format does not support read/write mode." }, + { SFE_BAD_SF_INFO , "Internal error : SF_INFO struct incomplete." }, + { SFE_BAD_OFFSET , "Error : supplied offset beyond end of file." }, + { SFE_NO_EMBED_SUPPORT , "Error : embedding not supported for this file format." }, + { SFE_NO_EMBEDDED_RDWR , "Error : cannot open embedded file read/write." }, + { SFE_NO_PIPE_WRITE , "Error : this file format does not support pipe write." }, + { SFE_BAD_VIRTUAL_IO , "Error : bad pointer on SF_VIRTUAL_IO struct." }, + { SFE_BAD_BROADCAST_INFO_SIZE + , "Error : bad size in SF_BROADCAST_INFO struct." }, + { SFE_BAD_BROADCAST_INFO_TOO_BIG + , "Error : SF_BROADCAST_INFO struct too large." }, + + { SFE_INTERLEAVE_MODE , "Attempt to write to file with non-interleaved data." }, + { SFE_INTERLEAVE_SEEK , "Bad karma in seek during interleave read operation." }, + { SFE_INTERLEAVE_READ , "Bad karma in read during interleave read operation." }, + + { SFE_INTERNAL , "Unspecified internal error." }, + { SFE_BAD_COMMAND_PARAM , "Bad parameter passed to function sf_command." }, + { SFE_BAD_ENDIAN , "Bad endian-ness. Try default endian-ness" }, + { SFE_CHANNEL_COUNT_ZERO , "Channel count is zero." }, + { SFE_CHANNEL_COUNT , "Too many channels specified." }, + + { SFE_BAD_SEEK , "Internal psf_fseek() failed." }, + { SFE_NOT_SEEKABLE , "Seek attempted on unseekable file type." }, + { SFE_AMBIGUOUS_SEEK , "Error : combination of file open mode and seek command is ambiguous." }, + { SFE_WRONG_SEEK , "Error : invalid seek parameters." }, + { SFE_SEEK_FAILED , "Error : parameters OK, but psf_seek() failed." }, + + { SFE_BAD_OPEN_MODE , "Error : bad mode parameter for file open." }, + { SFE_OPEN_PIPE_RDWR , "Error : attempt to open a pipe in read/write mode." }, + { SFE_RDWR_POSITION , "Error on RDWR position (cryptic)." }, + { SFE_RDWR_BAD_HEADER , "Error : Cannot open file in read/write mode due to string data in header." }, + { SFE_CMD_HAS_DATA , "Error : Command fails because file already has audio data." }, + + { SFE_STR_NO_SUPPORT , "Error : File type does not support string data." }, + { SFE_STR_NOT_WRITE , "Error : Trying to set a string when file is not in write mode." }, + { SFE_STR_MAX_DATA , "Error : Maximum string data storage reached." }, + { SFE_STR_MAX_COUNT , "Error : Maximum string data count reached." }, + { SFE_STR_BAD_TYPE , "Error : Bad string data type." }, + { SFE_STR_NO_ADD_END , "Error : file type does not support strings added at end of file." }, + { SFE_STR_BAD_STRING , "Error : bad string." }, + { SFE_STR_WEIRD , "Error : Weird string error." }, + + { SFE_WAV_NO_RIFF , "Error in WAV file. No 'RIFF' chunk marker." }, + { SFE_WAV_NO_WAVE , "Error in WAV file. No 'WAVE' chunk marker." }, + { SFE_WAV_NO_FMT , "Error in WAV/W64/RF64 file. No 'fmt ' chunk marker." }, + { SFE_WAV_BAD_FMT , "Error in WAV/W64/RF64 file. Malformed 'fmt ' chunk." }, + { SFE_WAV_FMT_SHORT , "Error in WAV/W64/RF64 file. Short 'fmt ' chunk." }, + + { SFE_WAV_BAD_FACT , "Error in WAV file. 'fact' chunk out of place." }, + { SFE_WAV_BAD_PEAK , "Error in WAV file. Bad 'PEAK' chunk." }, + { SFE_WAV_PEAK_B4_FMT , "Error in WAV file. 'PEAK' chunk found before 'fmt ' chunk." }, + + { SFE_WAV_BAD_FORMAT , "Error in WAV file. Errors in 'fmt ' chunk." }, + { SFE_WAV_BAD_BLOCKALIGN , "Error in WAV file. Block alignment in 'fmt ' chunk is incorrect." }, + { SFE_WAV_NO_DATA , "Error in WAV file. No 'data' chunk marker." }, + { SFE_WAV_BAD_LIST , "Error in WAV file. Malformed LIST chunk." }, + { SFE_WAV_UNKNOWN_CHUNK , "Error in WAV file. File contains an unknown chunk marker." }, + { SFE_WAV_WVPK_DATA , "Error in WAV file. Data is in WAVPACK format." }, + + { SFE_WAV_ADPCM_NOT4BIT , "Error in ADPCM WAV file. Invalid bit width." }, + { SFE_WAV_ADPCM_CHANNELS , "Error in ADPCM WAV file. Invalid number of channels." }, + { SFE_WAV_GSM610_FORMAT , "Error in GSM610 WAV file. Invalid format chunk." }, + + { SFE_AIFF_NO_FORM , "Error in AIFF file, bad 'FORM' marker." }, + { SFE_AIFF_AIFF_NO_FORM , "Error in AIFF file, 'AIFF' marker without 'FORM'." }, + { SFE_AIFF_COMM_NO_FORM , "Error in AIFF file, 'COMM' marker without 'FORM'." }, + { SFE_AIFF_SSND_NO_COMM , "Error in AIFF file, 'SSND' marker without 'COMM'." }, + { SFE_AIFF_UNKNOWN_CHUNK , "Error in AIFF file, unknown chunk." }, + { SFE_AIFF_COMM_CHUNK_SIZE, "Error in AIFF file, bad 'COMM' chunk size." }, + { SFE_AIFF_BAD_COMM_CHUNK , "Error in AIFF file, bad 'COMM' chunk." }, + { SFE_AIFF_PEAK_B4_COMM , "Error in AIFF file. 'PEAK' chunk found before 'COMM' chunk." }, + { SFE_AIFF_BAD_PEAK , "Error in AIFF file. Bad 'PEAK' chunk." }, + { SFE_AIFF_NO_SSND , "Error in AIFF file, bad 'SSND' chunk." }, + { SFE_AIFF_NO_DATA , "Error in AIFF file, no sound data." }, + { SFE_AIFF_RW_SSND_NOT_LAST, "Error in AIFF file, RDWR only possible if SSND chunk at end of file." }, + + { SFE_AU_UNKNOWN_FORMAT , "Error in AU file, unknown format." }, + { SFE_AU_NO_DOTSND , "Error in AU file, missing '.snd' or 'dns.' marker." }, + { SFE_AU_EMBED_BAD_LEN , "Embedded AU file with unknown length." }, + + { SFE_RAW_READ_BAD_SPEC , "Error while opening RAW file for read. Must specify format and channels.\n" + "Possibly trying to open unsupported format." + }, + { SFE_RAW_BAD_BITWIDTH , "Error. RAW file bitwidth must be a multiple of 8." }, + { SFE_RAW_BAD_FORMAT , "Error. Bad format field in SF_INFO struct when openning a RAW file for read." }, + + { SFE_PAF_NO_MARKER , "Error in PAF file, no marker." }, + { SFE_PAF_VERSION , "Error in PAF file, bad version." }, + { SFE_PAF_UNKNOWN_FORMAT , "Error in PAF file, unknown format." }, + { SFE_PAF_SHORT_HEADER , "Error in PAF file. File shorter than minimal header." }, + { SFE_PAF_BAD_CHANNELS , "Error in PAF file. Bad channel count." }, + + { SFE_SVX_NO_FORM , "Error in 8SVX / 16SV file, no 'FORM' marker." }, + { SFE_SVX_NO_BODY , "Error in 8SVX / 16SV file, no 'BODY' marker." }, + { SFE_SVX_NO_DATA , "Error in 8SVX / 16SV file, no sound data." }, + { SFE_SVX_BAD_COMP , "Error in 8SVX / 16SV file, unsupported compression format." }, + { SFE_SVX_BAD_NAME_LENGTH , "Error in 8SVX / 16SV file, NAME chunk too long." }, + + { SFE_NIST_BAD_HEADER , "Error in NIST file, bad header." }, + { SFE_NIST_CRLF_CONVERISON, "Error : NIST file damaged by Windows CR -> CRLF conversion process." }, + { SFE_NIST_BAD_ENCODING , "Error in NIST file, unsupported compression format." }, + + { SFE_VOC_NO_CREATIVE , "Error in VOC file, no 'Creative Voice File' marker." }, + { SFE_VOC_BAD_FORMAT , "Error in VOC file, bad format." }, + { SFE_VOC_BAD_VERSION , "Error in VOC file, bad version number." }, + { SFE_VOC_BAD_MARKER , "Error in VOC file, bad marker in file." }, + { SFE_VOC_BAD_SECTIONS , "Error in VOC file, incompatible VOC sections." }, + { SFE_VOC_MULTI_SAMPLERATE, "Error in VOC file, more than one sample rate defined." }, + { SFE_VOC_MULTI_SECTION , "Unimplemented VOC file feature, file contains multiple sound sections." }, + { SFE_VOC_MULTI_PARAM , "Error in VOC file, file contains multiple bit or channel widths." }, + { SFE_VOC_SECTION_COUNT , "Error in VOC file, too many sections." }, + { SFE_VOC_NO_PIPE , "Error : not able to operate on VOC files over a pipe." }, + + { SFE_IRCAM_NO_MARKER , "Error in IRCAM file, bad IRCAM marker." }, + { SFE_IRCAM_BAD_CHANNELS , "Error in IRCAM file, bad channel count." }, + { SFE_IRCAM_UNKNOWN_FORMAT, "Error in IRCAM file, unknow encoding format." }, + + { SFE_W64_64_BIT , "Error in W64 file, file contains 64 bit offset." }, + { SFE_W64_NO_RIFF , "Error in W64 file. No 'riff' chunk marker." }, + { SFE_W64_NO_WAVE , "Error in W64 file. No 'wave' chunk marker." }, + { SFE_W64_NO_DATA , "Error in W64 file. No 'data' chunk marker." }, + { SFE_W64_ADPCM_NOT4BIT , "Error in ADPCM W64 file. Invalid bit width." }, + { SFE_W64_ADPCM_CHANNELS , "Error in ADPCM W64 file. Invalid number of channels." }, + { SFE_W64_GSM610_FORMAT , "Error in GSM610 W64 file. Invalid format chunk." }, + + { SFE_MAT4_BAD_NAME , "Error in MAT4 file. No variable name." }, + { SFE_MAT4_NO_SAMPLERATE , "Error in MAT4 file. No sample rate." }, + + { SFE_MAT5_BAD_ENDIAN , "Error in MAT5 file. Not able to determine endian-ness." }, + { SFE_MAT5_NO_BLOCK , "Error in MAT5 file. Bad block structure." }, + { SFE_MAT5_SAMPLE_RATE , "Error in MAT5 file. Not able to determine sample rate." }, + + { SFE_PVF_NO_PVF1 , "Error in PVF file. No PVF1 marker." }, + { SFE_PVF_BAD_HEADER , "Error in PVF file. Bad header." }, + { SFE_PVF_BAD_BITWIDTH , "Error in PVF file. Bad bit width." }, + + { SFE_XI_BAD_HEADER , "Error in XI file. Bad header." }, + { SFE_XI_EXCESS_SAMPLES , "Error in XI file. Excess samples in file." }, + { SFE_XI_NO_PIPE , "Error : not able to operate on XI files over a pipe." }, + + { SFE_HTK_NO_PIPE , "Error : not able to operate on HTK files over a pipe." }, + + { SFE_SDS_NOT_SDS , "Error : not an SDS file." }, + { SFE_SDS_BAD_BIT_WIDTH , "Error : bad bit width for SDS file." }, + + { SFE_SD2_FD_DISALLOWED , "Error : cannot open SD2 file without a file name." }, + { SFE_SD2_BAD_DATA_OFFSET , "Error : bad data offset." }, + { SFE_SD2_BAD_MAP_OFFSET , "Error : bad map offset." }, + { SFE_SD2_BAD_DATA_LENGTH , "Error : bad data length." }, + { SFE_SD2_BAD_MAP_LENGTH , "Error : bad map length." }, + { SFE_SD2_BAD_RSRC , "Error : bad resource fork." }, + { SFE_SD2_BAD_SAMPLE_SIZE , "Error : bad sample size." }, + + { SFE_FLAC_BAD_HEADER , "Error : bad flac header." }, + { SFE_FLAC_NEW_DECODER , "Error : problem while creating flac decoder." }, + { SFE_FLAC_INIT_DECODER , "Error : problem while initialization of the flac decoder." }, + { SFE_FLAC_LOST_SYNC , "Error : flac decoder lost sync." }, + { SFE_FLAC_BAD_SAMPLE_RATE, "Error : flac does not support this sample rate." }, + { SFE_FLAC_UNKOWN_ERROR , "Error : unknown error in flac decoder." }, + + { SFE_WVE_NOT_WVE , "Error : not a WVE file." }, + { SFE_WVE_NO_PIPE , "Error : not able to operate on WVE files over a pipe." }, + + { SFE_DWVW_BAD_BITWIDTH , "Error : Bad bit width for DWVW encoding. Must be 12, 16 or 24." }, + { SFE_G72X_NOT_MONO , "Error : G72x encoding does not support more than 1 channel." }, + + { SFE_VORBIS_ENCODER_BUG , "Error : Sample rate chosen is known to trigger a Vorbis encoder bug on this CPU." }, + + { SFE_RF64_NOT_RF64 , "Error : Not an RF64 file." }, + + { SFE_MAX_ERROR , "Maximum error number." }, + { SFE_MAX_ERROR + 1 , NULL } +} ; + +/*------------------------------------------------------------------------------ +*/ + +static int format_from_extension (SF_PRIVATE *psf) ; +static int guess_file_type (SF_PRIVATE *psf) ; +static int validate_sfinfo (SF_INFO *sfinfo) ; +static int validate_psf (SF_PRIVATE *psf) ; +static void save_header_info (SF_PRIVATE *psf) ; +static void copy_filename (SF_PRIVATE *psf, const char *path) ; +static int psf_close (SF_PRIVATE *psf) ; + +static int try_resource_fork (SF_PRIVATE * psf) ; + +/*------------------------------------------------------------------------------ +** Private (static) variables. +*/ + +int sf_errno = 0 ; +static char sf_logbuffer [SF_BUFFER_LEN] = { 0 } ; +static char sf_syserr [SF_SYSERR_LEN] = { 0 } ; + +/*------------------------------------------------------------------------------ +*/ + +#define VALIDATE_SNDFILE_AND_ASSIGN_PSF(a,b,c) \ + { if ((a) == NULL) \ + { sf_errno = SFE_BAD_SNDFILE_PTR ; \ + return 0 ; \ + } ; \ + (b) = (SF_PRIVATE*) (a) ; \ + if ((b)->virtual_io == SF_FALSE && \ + psf_file_valid (b) == 0) \ + { (b)->error = SFE_BAD_FILE_PTR ; \ + return 0 ; \ + } ; \ + if ((b)->Magick != SNDFILE_MAGICK) \ + { (b)->error = SFE_BAD_SNDFILE_PTR ; \ + return 0 ; \ + } ; \ + if (c) (b)->error = 0 ; \ + } + +/*------------------------------------------------------------------------------ +** Public functions. +*/ + +SNDFILE* +sf_open (const char *path, int mode, SF_INFO *sfinfo) +{ SF_PRIVATE *psf ; + + /* Ultimate sanity check. */ + assert (sizeof (sf_count_t) == 8) ; + + if ((psf = calloc (1, sizeof (SF_PRIVATE))) == NULL) + { sf_errno = SFE_MALLOC_FAILED ; + return NULL ; + } ; + + memset (psf, 0, sizeof (SF_PRIVATE)) ; + psf_init_files (psf) ; + + psf_log_printf (psf, "File : %s\n", path) ; + + copy_filename (psf, path) ; + + psf->file.mode = mode ; + if (strcmp (path, "-") == 0) + psf->error = psf_set_stdio (psf) ; + else + psf->error = psf_fopen (psf) ; + + return psf_open_file (psf, sfinfo) ; +} /* sf_open */ + +SNDFILE* +sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) +{ SF_PRIVATE *psf ; + + if ((SF_CONTAINER (sfinfo->format)) == SF_FORMAT_SD2) + { sf_errno = SFE_SD2_FD_DISALLOWED ; + return NULL ; + } ; + + if ((psf = calloc (1, sizeof (SF_PRIVATE))) == NULL) + { sf_errno = SFE_MALLOC_FAILED ; + return NULL ; + } ; + + psf_init_files (psf) ; + copy_filename (psf, "") ; + + psf->file.mode = mode ; + psf_set_file (psf, fd) ; + psf->is_pipe = psf_is_pipe (psf) ; + psf->fileoffset = psf_ftell (psf) ; + + if (! close_desc) + psf->file.do_not_close_descriptor = SF_TRUE ; + + return psf_open_file (psf, sfinfo) ; +} /* sf_open_fd */ + +SNDFILE* +sf_open_virtual (SF_VIRTUAL_IO *sfvirtual, int mode, SF_INFO *sfinfo, void *user_data) +{ SF_PRIVATE *psf ; + + /* Make sure we have a valid set ot virtual pointers. */ + if (sfvirtual->get_filelen == NULL || sfvirtual->seek == NULL || sfvirtual->tell == NULL) + { sf_errno = SFE_BAD_VIRTUAL_IO ; + snprintf (sf_logbuffer, sizeof (sf_logbuffer), "Bad vio_get_filelen / vio_seek / vio_tell in SF_VIRTUAL_IO struct.\n") ; + return NULL ; + } ; + + if ((mode == SFM_READ || mode == SFM_RDWR) && sfvirtual->read == NULL) + { sf_errno = SFE_BAD_VIRTUAL_IO ; + snprintf (sf_logbuffer, sizeof (sf_logbuffer), "Bad vio_read in SF_VIRTUAL_IO struct.\n") ; + return NULL ; + } ; + + if ((mode == SFM_WRITE || mode == SFM_RDWR) && sfvirtual->write == NULL) + { sf_errno = SFE_BAD_VIRTUAL_IO ; + snprintf (sf_logbuffer, sizeof (sf_logbuffer), "Bad vio_write in SF_VIRTUAL_IO struct.\n") ; + return NULL ; + } ; + + if ((psf = calloc (1, sizeof (SF_PRIVATE))) == NULL) + { sf_errno = SFE_MALLOC_FAILED ; + return NULL ; + } ; + + psf_init_files (psf) ; + + psf->virtual_io = SF_TRUE ; + psf->vio = *sfvirtual ; + psf->vio_user_data = user_data ; + + psf->file.mode = mode ; + + return psf_open_file (psf, sfinfo) ; +} /* sf_open_virtual */ + +int +sf_close (SNDFILE *sndfile) +{ SF_PRIVATE *psf ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + return psf_close (psf) ; +} /* sf_close */ + +void +sf_write_sync (SNDFILE *sndfile) +{ SF_PRIVATE *psf ; + + if ((psf = (SF_PRIVATE *) sndfile) == NULL) + return ; + + psf_fsync (psf) ; + + return ; +} /* sf_write_sync */ + +/*============================================================================== +*/ + +const char* +sf_error_number (int errnum) +{ static const char *bad_errnum = + "No error defined for this error number. This is a bug in libsndfile." ; + int k ; + + if (errnum == SFE_MAX_ERROR) + return SndfileErrors [0].str ; + + if (errnum < 0 || errnum > SFE_MAX_ERROR) + { /* This really shouldn't happen in release versions. */ + printf ("Not a valid error number (%d).\n", errnum) ; + return bad_errnum ; + } ; + + for (k = 0 ; SndfileErrors [k].str ; k++) + if (errnum == SndfileErrors [k].error) + return SndfileErrors [k].str ; + + return bad_errnum ; +} /* sf_error_number */ + +const char* +sf_strerror (SNDFILE *sndfile) +{ SF_PRIVATE *psf = NULL ; + int errnum ; + + if (sndfile == NULL) + { errnum = sf_errno ; + if (errnum == SFE_SYSTEM && sf_syserr [0]) + return sf_syserr ; + } + else + { psf = (SF_PRIVATE *) sndfile ; + + if (psf->Magick != SNDFILE_MAGICK) + return "sf_strerror : Bad magic number." ; + + errnum = psf->error ; + + if (errnum == SFE_SYSTEM && psf->syserr [0]) + return psf->syserr ; + } ; + + return sf_error_number (errnum) ; +} /* sf_strerror */ + +/*------------------------------------------------------------------------------ +*/ + +int +sf_error (SNDFILE *sndfile) +{ SF_PRIVATE *psf ; + + if (sndfile == NULL) + return sf_errno ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ; + + if (psf->error) + return psf->error ; + + return 0 ; +} /* sf_error */ + +/*------------------------------------------------------------------------------ +*/ + +int +sf_perror (SNDFILE *sndfile) +{ SF_PRIVATE *psf ; + int errnum ; + + if (sndfile == NULL) + { errnum = sf_errno ; + } + else + { VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ; + errnum = psf->error ; + } ; + + fprintf (stderr, "%s\n", sf_error_number (errnum)) ; + return SFE_NO_ERROR ; +} /* sf_perror */ + + +/*------------------------------------------------------------------------------ +*/ + +int +sf_error_str (SNDFILE *sndfile, char *str, size_t maxlen) +{ SF_PRIVATE *psf ; + int errnum ; + + if (str == NULL) + return SFE_INTERNAL ; + + if (sndfile == NULL) + errnum = sf_errno ; + else + { VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 0) ; + errnum = psf->error ; + } ; + + snprintf (str, maxlen, "%s", sf_error_number (errnum)) ; + + return SFE_NO_ERROR ; +} /* sf_error_str */ + +/*============================================================================== +*/ + +int +sf_format_check (const SF_INFO *info) +{ int subformat, endian ; + + subformat = SF_CODEC (info->format) ; + endian = SF_ENDIAN (info->format) ; + + /* This is the place where each file format can check if the suppiled + ** SF_INFO struct is valid. + ** Return 0 on failure, 1 ons success. + */ + + if (info->channels < 1 || info->channels > SF_MAX_CHANNELS) + return 0 ; + + if (info->samplerate < 0) + return 0 ; + + switch (SF_CONTAINER (info->format)) + { case SF_FORMAT_WAV : + /* WAV now allows both endian, RIFF or RIFX (little or big respectively) */ + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2) + return 1 ; + if (subformat == SF_FORMAT_GSM610 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_G721_32 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_WAVEX : + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_AIFF : + /* AIFF does allow both endian-nesses for PCM data.*/ + if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + /* Other encodings. Check for endian-ness. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 || + subformat == SF_FORMAT_DWVW_24) && info-> channels == 1) + return 1 ; + if (subformat == SF_FORMAT_GSM610 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_IMA_ADPCM && (info->channels == 1 || info->channels == 2)) + return 1 ; + break ; + + case SF_FORMAT_AU : + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + if (subformat == SF_FORMAT_G721_32 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_G723_24 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_G723_40 && info->channels == 1) + return 1 ; + break ; + + case SF_FORMAT_CAF : + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_RAW : + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + if (subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_ULAW) + return 1 ; + if ((subformat == SF_FORMAT_DWVW_12 || subformat == SF_FORMAT_DWVW_16 || + subformat == SF_FORMAT_DWVW_24) && info-> channels == 1) + return 1 ; + if (subformat == SF_FORMAT_GSM610 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_VOX_ADPCM && info->channels == 1) + return 1 ; + break ; + + case SF_FORMAT_PAF : + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24) + return 1 ; + break ; + + case SF_FORMAT_SVX : + /* SVX only supports writing mono SVX files. */ + if (info->channels > 1) + return 0 ; + /* Always big endian. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + break ; + + case SF_FORMAT_NIST : + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + break ; + + case SF_FORMAT_IRCAM : + if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW || subformat == SF_FORMAT_FLOAT) + return 1 ; + break ; + + case SF_FORMAT_VOC : + /* VOC is strictly little endian. */ + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + break ; + + case SF_FORMAT_W64 : + /* W64 is strictly little endian. */ + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if ((subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) && info->channels <= 2) + return 1 ; + if (subformat == SF_FORMAT_GSM610 && info->channels == 1) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_MAT4 : + if (subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_MAT5 : + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + + case SF_FORMAT_PVF : + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_32) + return 1 ; + break ; + + case SF_FORMAT_XI : + if (info->channels != 1) + return 0 ; + if (subformat == SF_FORMAT_DPCM_8 || subformat == SF_FORMAT_DPCM_16) + return 1 ; + break ; + + case SF_FORMAT_HTK : + /* HTK is strictly big endian. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + if (info->channels != 1) + return 0 ; + if (subformat == SF_FORMAT_PCM_16) + return 1 ; + break ; + + case SF_FORMAT_SDS : + /* SDS is strictly big endian. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + if (info->channels != 1) + return 0 ; + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24) + return 1 ; + break ; + + case SF_FORMAT_AVR : + /* SDS is strictly big endian. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + if (info->channels > 2) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + break ; + + case SF_FORMAT_FLAC : + /* FLAC can't do more than 8 channels. */ + if (info->channels > 8) + return 0 ; + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24) + return 1 ; + break ; + + case SF_FORMAT_SD2 : + /* SD2 is strictly big endian. */ + if (endian == SF_ENDIAN_LITTLE || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_S8 || subformat == SF_FORMAT_PCM_16 || subformat == SF_FORMAT_PCM_24) + return 1 ; + break ; + + case SF_FORMAT_WVE : + /* WVE is strictly big endian. */ + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (info->channels > 1) + return 0 ; + if (subformat == SF_FORMAT_ALAW) + return 1 ; + break ; + + case SF_FORMAT_OGG : + if (subformat == SF_FORMAT_VORBIS) + return 1 ; + break ; + + case SF_FORMAT_MPC2K : + /* MPC2000 is strictly little endian. */ + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (info->channels > 2) + return 0 ; + if (subformat == SF_FORMAT_PCM_16) + return 1 ; + break ; + + case SF_FORMAT_RF64 : + if (endian == SF_ENDIAN_BIG || endian == SF_ENDIAN_CPU) + return 0 ; + if (subformat == SF_FORMAT_PCM_U8 || subformat == SF_FORMAT_PCM_16) + return 1 ; + if (subformat == SF_FORMAT_PCM_24 || subformat == SF_FORMAT_PCM_32) + return 1 ; + if (subformat == SF_FORMAT_ULAW || subformat == SF_FORMAT_ALAW) + return 1 ; + if (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE) + return 1 ; + break ; + default : break ; + } ; + + return 0 ; +} /* sf_format_check */ + +/*------------------------------------------------------------------------------ +*/ + +const char * +sf_version_string (void) +{ +#if ENABLE_EXPERIMENTAL_CODE + return PACKAGE_NAME "-" PACKAGE_VERSION "-exp" ; +#else + return PACKAGE_NAME "-" PACKAGE_VERSION ; +#endif +} + + +/*------------------------------------------------------------------------------ +*/ + +int +sf_command (SNDFILE *sndfile, int command, void *data, int datasize) +{ SF_PRIVATE *psf = (SF_PRIVATE *) sndfile ; + int old_value ; + + /* This set of commands do not need the sndfile parameter. */ + switch (command) + { case SFC_GET_LIB_VERSION : + if (data == NULL) + { if (psf) + psf->error = SFE_BAD_COMMAND_PARAM ; + return SFE_BAD_COMMAND_PARAM ; + } ; + snprintf (data, datasize, "%s", sf_version_string ()) ; + return strlen (data) ; + + case SFC_GET_SIMPLE_FORMAT_COUNT : + if (data == NULL || datasize != SIGNED_SIZEOF (int)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + *((int*) data) = psf_get_format_simple_count () ; + return 0 ; + + case SFC_GET_SIMPLE_FORMAT : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + return psf_get_format_simple (data) ; + + case SFC_GET_FORMAT_MAJOR_COUNT : + if (data == NULL || datasize != SIGNED_SIZEOF (int)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + *((int*) data) = psf_get_format_major_count () ; + return 0 ; + + case SFC_GET_FORMAT_MAJOR : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + return psf_get_format_major (data) ; + + case SFC_GET_FORMAT_SUBTYPE_COUNT : + if (data == NULL || datasize != SIGNED_SIZEOF (int)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + *((int*) data) = psf_get_format_subtype_count () ; + return 0 ; + + case SFC_GET_FORMAT_SUBTYPE : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + return psf_get_format_subtype (data) ; + + case SFC_GET_FORMAT_INFO : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_FORMAT_INFO)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + return psf_get_format_info (data) ; + } ; + + if (sndfile == NULL && command == SFC_GET_LOG_INFO) + { if (data == NULL) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + snprintf (data, datasize, "%s", sf_logbuffer) ; + return strlen (data) ; + } ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + switch (command) + { case SFC_SET_NORM_FLOAT : + old_value = psf->norm_float ; + psf->norm_float = (datasize) ? SF_TRUE : SF_FALSE ; + return old_value ; + + case SFC_GET_CURRENT_SF_INFO : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_INFO)) + return (sf_errno = SFE_BAD_COMMAND_PARAM) ; + memcpy (data, &psf->sf, sizeof (SF_INFO)) ; + break ; + + case SFC_SET_NORM_DOUBLE : + old_value = psf->norm_double ; + psf->norm_double = (datasize) ? SF_TRUE : SF_FALSE ; + return old_value ; + + case SFC_GET_NORM_FLOAT : + return psf->norm_float ; + + case SFC_GET_NORM_DOUBLE : + return psf->norm_double ; + + case SFC_SET_SCALE_FLOAT_INT_READ : + old_value = psf->float_int_mult ; + + psf->float_int_mult = (datasize != 0) ? SF_TRUE : SF_FALSE ; + if (psf->float_int_mult && psf->float_max < 0.0) + psf->float_max = psf_calc_signal_max (psf, SF_FALSE) ; + return old_value ; + + case SFC_SET_SCALE_INT_FLOAT_WRITE : + old_value = psf->scale_int_float ; + psf->scale_int_float = (datasize != 0) ? SF_TRUE : SF_FALSE ; + return old_value ; + + case SFC_SET_ADD_PEAK_CHUNK : + { int format = SF_CONTAINER (psf->sf.format) ; + + /* Only WAV and AIFF support the PEAK chunk. */ + switch (format) + { case SF_FORMAT_AIFF : + case SF_FORMAT_CAF : + case SF_FORMAT_WAV : + case SF_FORMAT_WAVEX : + break ; + + default : + return SF_FALSE ; + } ; + + format = SF_CODEC (psf->sf.format) ; + + /* Only files containg the following data types support the PEAK chunk. */ + if (format != SF_FORMAT_FLOAT && format != SF_FORMAT_DOUBLE) + return SF_FALSE ; + + } ; + /* Can only do this is in SFM_WRITE mode. */ + if (psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR) + return SF_FALSE ; + /* If data has already been written this must fail. */ + if (psf->have_written) + { psf->error = SFE_CMD_HAS_DATA ; + return SF_FALSE ; + } ; + /* Everything seems OK, so set psf->has_peak and re-write header. */ + if (datasize == SF_FALSE && psf->peak_info != NULL) + { free (psf->peak_info) ; + psf->peak_info = NULL ; + } + else if (psf->peak_info == NULL) + { psf->peak_info = peak_info_calloc (psf->sf.channels) ; + if (psf->peak_info != NULL) + psf->peak_info->peak_loc = SF_PEAK_START ; + } ; + + if (psf->write_header) + psf->write_header (psf, SF_TRUE) ; + return datasize ; + + case SFC_SET_ADD_HEADER_PAD_CHUNK : + return SF_FALSE ; + + case SFC_GET_LOG_INFO : + if (data == NULL) + return SFE_BAD_COMMAND_PARAM ; + snprintf (data, datasize, "%s", psf->logbuffer) ; + break ; + + case SFC_CALC_SIGNAL_MAX : + if (data == NULL || datasize != sizeof (double)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + *((double*) data) = psf_calc_signal_max (psf, SF_FALSE) ; + break ; + + case SFC_CALC_NORM_SIGNAL_MAX : + if (data == NULL || datasize != sizeof (double)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + *((double*) data) = psf_calc_signal_max (psf, SF_TRUE) ; + break ; + + case SFC_CALC_MAX_ALL_CHANNELS : + if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + return psf_calc_max_all_channels (psf, (double*) data, SF_FALSE) ; + + case SFC_CALC_NORM_MAX_ALL_CHANNELS : + if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + return psf_calc_max_all_channels (psf, (double*) data, SF_TRUE) ; + + case SFC_GET_SIGNAL_MAX : + if (data == NULL || datasize != sizeof (double)) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + return psf_get_signal_max (psf, (double *) data) ; + + case SFC_GET_MAX_ALL_CHANNELS : + if (data == NULL || datasize != SIGNED_SIZEOF (double) * psf->sf.channels) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + return psf_get_max_all_channels (psf, (double*) data) ; + + case SFC_UPDATE_HEADER_NOW : + if (psf->write_header) + psf->write_header (psf, SF_TRUE) ; + break ; + + case SFC_SET_UPDATE_HEADER_AUTO : + psf->auto_header = datasize ? SF_TRUE : SF_FALSE ; + return psf->auto_header ; + break ; + + case SFC_SET_ADD_DITHER_ON_WRITE : + case SFC_SET_ADD_DITHER_ON_READ : + /* + ** FIXME ! + ** These are obsolete. Just return. + ** Remove some time after version 1.0.8. + */ + break ; + + case SFC_SET_DITHER_ON_WRITE : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_DITHER_INFO)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + memcpy (&psf->write_dither, data, sizeof (psf->write_dither)) ; + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + dither_init (psf, SFM_WRITE) ; + break ; + + case SFC_SET_DITHER_ON_READ : + if (data == NULL || datasize != SIGNED_SIZEOF (SF_DITHER_INFO)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + memcpy (&psf->read_dither, data, sizeof (psf->read_dither)) ; + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + dither_init (psf, SFM_READ) ; + break ; + + case SFC_FILE_TRUNCATE : + if (psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR) + return SF_TRUE ; + if (datasize != sizeof (sf_count_t)) + return SF_TRUE ; + if (data == NULL || datasize != sizeof (sf_count_t)) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } + else + { sf_count_t position ; + + position = *((sf_count_t*) data) ; + + if (sf_seek (sndfile, position, SEEK_SET) != position) + return SF_TRUE ; + + psf->sf.frames = position ; + + position = psf_fseek (psf, 0, SEEK_CUR) ; + + return psf_ftruncate (psf, position) ; + } ; + break ; + + case SFC_SET_RAW_START_OFFSET : + if (data == NULL || datasize != sizeof (sf_count_t)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_RAW) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + + psf->dataoffset = *((sf_count_t*) data) ; + sf_seek (sndfile, 0, SEEK_CUR) ; + break ; + + case SFC_GET_EMBED_FILE_INFO : + if (data == NULL || datasize != sizeof (SF_EMBED_FILE_INFO)) + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + + ((SF_EMBED_FILE_INFO*) data)->offset = psf->fileoffset ; + ((SF_EMBED_FILE_INFO*) data)->length = psf->filelength ; + break ; + + /* Lite remove start */ + case SFC_TEST_IEEE_FLOAT_REPLACE : + psf->ieee_replace = (datasize) ? SF_TRUE : SF_FALSE ; + if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_FLOAT) + float32_init (psf) ; + else if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_DOUBLE) + double64_init (psf) ; + else + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + break ; + /* Lite remove end */ + + case SFC_SET_CLIPPING : + psf->add_clipping = (datasize) ? SF_TRUE : SF_FALSE ; + return psf->add_clipping ; + + case SFC_GET_CLIPPING : + return psf->add_clipping ; + + case SFC_GET_LOOP_INFO : + if (datasize != sizeof (SF_LOOP_INFO) || data == NULL) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + if (psf->loop_info == NULL) + return SF_FALSE ; + memcpy (data, psf->loop_info, sizeof (SF_LOOP_INFO)) ; + return SF_TRUE ; + + case SFC_SET_BROADCAST_INFO : + { int format = SF_CONTAINER (psf->sf.format) ; + + /* Only WAV and RF64 supports the BEXT (Broadcast) chunk. */ + if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX && format != SF_FORMAT_RF64) + return SF_FALSE ; + } ; + + /* Only makes sense in SFM_WRITE or SFM_RDWR mode. */ + if ((psf->file.mode != SFM_WRITE) && (psf->file.mode != SFM_RDWR)) + return SF_FALSE ; + /* If data has already been written this must fail. */ + if (psf->broadcast_16k == NULL && psf->have_written) + { psf->error = SFE_CMD_HAS_DATA ; + return SF_FALSE ; + } ; + +#if 0 + if (psf->broadcast_info == NULL) + psf->broadcast_info = broadcast_info_alloc () ; + + broadcast_info_copy (psf->broadcast_info, data) ; + broadcast_add_coding_history (psf->broadcast_info, psf->sf.channels, psf->sf.samplerate, psf->sf.format) ; +#else + broadcast_var_set (psf, data, datasize) ; +#endif + + if (psf->write_header) + psf->write_header (psf, SF_TRUE) ; + return SF_TRUE ; + + case SFC_GET_BROADCAST_INFO : + if (data == NULL) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; +#if 0 + if (psf->broadcast_info == NULL) + return SF_FALSE ; + return broadcast_info_copy (data, psf->broadcast_info) ; +#else + return broadcast_var_get (psf, data, datasize) ; +#endif + + case SFC_GET_INSTRUMENT : + if (datasize != sizeof (SF_INSTRUMENT) || data == NULL) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + if (psf->instrument == NULL) + return SF_FALSE ; + memcpy (data, psf->instrument, sizeof (SF_INSTRUMENT)) ; + return SF_TRUE ; + + case SFC_SET_INSTRUMENT : + /* If data has already been written this must fail. */ + if (psf->have_written) + { psf->error = SFE_CMD_HAS_DATA ; + return SF_FALSE ; + } ; + if (datasize != sizeof (SF_INSTRUMENT) || data == NULL) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + + if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL) + { psf->error = SFE_MALLOC_FAILED ; + return SF_FALSE ; + } ; + memcpy (psf->instrument, data, sizeof (SF_INSTRUMENT)) ; + return SF_TRUE ; + + case SFC_RAW_DATA_NEEDS_ENDSWAP : + return psf->data_endswap ; + + case SFC_GET_CHANNEL_MAP_INFO : + if (psf->channel_map == NULL) + return SF_FALSE ; + + if (data == NULL || datasize != SIGNED_SIZEOF (psf->channel_map [0]) * psf->sf.channels) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + + memcpy (data, psf->channel_map, datasize) ; + return SF_TRUE ; + + case SFC_SET_CHANNEL_MAP_INFO : + if (psf->have_written) + { psf->error = SFE_CMD_HAS_DATA ; + return SF_FALSE ; + } ; + if (data == NULL || datasize != SIGNED_SIZEOF (psf->channel_map [0]) * psf->sf.channels) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + + { int *iptr ; + + for (iptr = data ; iptr < (int*) data + psf->sf.channels ; iptr++) + { if (*iptr <= SF_CHANNEL_MAP_INVALID || *iptr >= SF_CHANNEL_MAP_MAX) + { psf->error = SFE_BAD_COMMAND_PARAM ; + return SF_FALSE ; + } ; + } ; + } ; + + free (psf->channel_map) ; + if ((psf->channel_map = malloc (datasize)) == NULL) + { psf->error = SFE_MALLOC_FAILED ; + return SF_FALSE ; + } ; + + memcpy (psf->channel_map, data, datasize) ; + + /* + ** Pass the command down to the container's command handler. + ** Don't pass user data, use validated psf->channel_map data instead. + */ + if (psf->command) + return psf->command (psf, command, NULL, 0) ; + return SF_FALSE ; + + default : + /* Must be a file specific command. Pass it on. */ + if (psf->command) + return psf->command (psf, command, data, datasize) ; + + psf_log_printf (psf, "*** sf_command : cmd = 0x%X\n", command) ; + return (psf->error = SFE_BAD_COMMAND_PARAM) ; + } ; + + return 0 ; +} /* sf_command */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_seek (SNDFILE *sndfile, sf_count_t offset, int whence) +{ SF_PRIVATE *psf ; + sf_count_t seek_from_start = 0, retval ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (! psf->sf.seekable) + { psf->error = SFE_NOT_SEEKABLE ; + return PSF_SEEK_ERROR ; + } ; + + /* If the whence parameter has a mode ORed in, check to see that + ** it makes sense. + */ + if (((whence & SFM_MASK) == SFM_WRITE && psf->file.mode == SFM_READ) || + ((whence & SFM_MASK) == SFM_READ && psf->file.mode == SFM_WRITE)) + { psf->error = SFE_WRONG_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + /* Convert all SEEK_CUR and SEEK_END into seek_from_start to be + ** used with SEEK_SET. + */ + switch (whence) + { /* The SEEK_SET behaviour is independant of mode. */ + case SEEK_SET : + case SEEK_SET | SFM_READ : + case SEEK_SET | SFM_WRITE : + case SEEK_SET | SFM_RDWR : + seek_from_start = offset ; + break ; + + /* The SEEK_CUR is a little more tricky. */ + case SEEK_CUR : + if (offset == 0) + { if (psf->file.mode == SFM_READ) + return psf->read_current ; + if (psf->file.mode == SFM_WRITE) + return psf->write_current ; + } ; + if (psf->file.mode == SFM_READ) + seek_from_start = psf->read_current + offset ; + else if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + seek_from_start = psf->write_current + offset ; + else + psf->error = SFE_AMBIGUOUS_SEEK ; + break ; + + case SEEK_CUR | SFM_READ : + if (offset == 0) + return psf->read_current ; + seek_from_start = psf->read_current + offset ; + break ; + + case SEEK_CUR | SFM_WRITE : + if (offset == 0) + return psf->write_current ; + seek_from_start = psf->write_current + offset ; + break ; + + /* The SEEK_END */ + case SEEK_END : + case SEEK_END | SFM_READ : + case SEEK_END | SFM_WRITE : + seek_from_start = psf->sf.frames + offset ; + break ; + + default : + psf->error = SFE_BAD_SEEK ; + break ; + } ; + + if (psf->error) + return PSF_SEEK_ERROR ; + + if (psf->file.mode == SFM_RDWR || psf->file.mode == SFM_WRITE) + { if (seek_from_start < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + } + else if (seek_from_start < 0 || seek_from_start > psf->sf.frames) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (psf->seek) + { int new_mode = (whence & SFM_MASK) ? (whence & SFM_MASK) : psf->file.mode ; + + retval = psf->seek (psf, new_mode, seek_from_start) ; + + switch (new_mode) + { case SFM_READ : + psf->read_current = retval ; + break ; + case SFM_WRITE : + psf->write_current = retval ; + break ; + case SFM_RDWR : + psf->read_current = retval ; + psf->write_current = retval ; + new_mode = SFM_READ ; + break ; + } ; + + psf->last_op = new_mode ; + + return retval ; + } ; + + psf->error = SFE_AMBIGUOUS_SEEK ; + return PSF_SEEK_ERROR ; +} /* sf_seek */ + +/*------------------------------------------------------------------------------ +*/ + +const char* +sf_get_string (SNDFILE *sndfile, int str_type) +{ SF_PRIVATE *psf ; + + if ((psf = (SF_PRIVATE*) sndfile) == NULL) + return NULL ; + if (psf->Magick != SNDFILE_MAGICK) + return NULL ; + + return psf_get_string (psf, str_type) ; +} /* sf_get_string */ + +int +sf_set_string (SNDFILE *sndfile, int str_type, const char* str) +{ SF_PRIVATE *psf ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + return psf_set_string (psf, str_type, str) ; +} /* sf_get_string */ + +/*============================================================================== +*/ + +sf_count_t +sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + int bytewidth, blockwidth ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + bytewidth = (psf->bytewidth > 0) ? psf->bytewidth : 1 ; + blockwidth = (psf->blockwidth > 0) ? psf->blockwidth : 1 ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (bytes < 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, bytes) ; + return 0 ; + } ; + + if (bytes % (psf->sf.channels * bytewidth)) + { psf->error = SFE_BAD_READ_ALIGN ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf_fread (ptr, 1, bytes, psf) ; + + if (psf->read_current + count / blockwidth <= psf->sf.frames) + psf->read_current += count / blockwidth ; + else + { count = (psf->sf.frames - psf->read_current) * blockwidth ; + extra = bytes - count ; + psf_memset (((char *) ptr) + count, 0, extra) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count ; +} /* sf_read_raw */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_READ_ALIGN ; + return 0 ; + } ; + + if (len <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, len * sizeof (short)) ; + return 0 ; /* End of file. */ + } ; + + if (psf->read_short == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_short (psf, ptr, len) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = len - count ; + psf_memset (ptr + count, 0, extra * sizeof (short)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count ; +} /* sf_read_short */ + +sf_count_t +sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (frames <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (short)) ; + return 0 ; /* End of file. */ + } ; + + if (psf->read_short == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_short (psf, ptr, frames * psf->sf.channels) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = frames * psf->sf.channels - count ; + psf_memset (ptr + count, 0, extra * sizeof (short)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count / psf->sf.channels ; +} /* sf_readf_short */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_READ_ALIGN ; + return 0 ; + } ; + + if (len <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, len * sizeof (int)) ; + return 0 ; + } ; + + if (psf->read_int == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_int (psf, ptr, len) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = len - count ; + psf_memset (ptr + count, 0, extra * sizeof (int)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count ; +} /* sf_read_int */ + +sf_count_t +sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (frames <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (int)) ; + return 0 ; + } ; + + if (psf->read_int == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_int (psf, ptr, frames * psf->sf.channels) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = frames * psf->sf.channels - count ; + psf_memset (ptr + count, 0, extra * sizeof (int)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count / psf->sf.channels ; +} /* sf_readf_int */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_READ_ALIGN ; + return 0 ; + } ; + + if (len <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, len * sizeof (float)) ; + return 0 ; + } ; + + if (psf->read_float == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_float (psf, ptr, len) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = len - count ; + psf_memset (ptr + count, 0, extra * sizeof (float)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count ; +} /* sf_read_float */ + +sf_count_t +sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (frames <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (float)) ; + return 0 ; + } ; + + if (psf->read_float == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_float (psf, ptr, frames * psf->sf.channels) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = frames * psf->sf.channels - count ; + psf_memset (ptr + count, 0, extra * sizeof (float)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count / psf->sf.channels ; +} /* sf_readf_float */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_READ_ALIGN ; + return 0 ; + } ; + + if (len <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, len * sizeof (double)) ; + return 0 ; + } ; + + if (psf->read_double == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_double (psf, ptr, len) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = len - count ; + psf_memset (ptr + count, 0, extra * sizeof (double)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count ; +} /* sf_read_double */ + +sf_count_t +sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count, extra ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_WRITE) + { psf->error = SFE_NOT_READMODE ; + return 0 ; + } ; + + if (frames <= 0 || psf->read_current >= psf->sf.frames) + { psf_memset (ptr, 0, frames * psf->sf.channels * sizeof (double)) ; + return 0 ; + } ; + + if (psf->read_double == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_READ) + if (psf->seek (psf, SFM_READ, psf->read_current) < 0) + return 0 ; + + count = psf->read_double (psf, ptr, frames * psf->sf.channels) ; + + if (psf->read_current + count / psf->sf.channels <= psf->sf.frames) + psf->read_current += count / psf->sf.channels ; + else + { count = (psf->sf.frames - psf->read_current) * psf->sf.channels ; + extra = frames * psf->sf.channels - count ; + psf_memset (ptr + count, 0, extra * sizeof (double)) ; + psf->read_current = psf->sf.frames ; + } ; + + psf->last_op = SFM_READ ; + + return count / psf->sf.channels ; +} /* sf_readf_double */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_write_raw (SNDFILE *sndfile, const void *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count ; + int bytewidth, blockwidth ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + bytewidth = (psf->bytewidth > 0) ? psf->bytewidth : 1 ; + blockwidth = (psf->blockwidth > 0) ? psf->blockwidth : 1 ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (len % (psf->sf.channels * bytewidth)) + { psf->error = SFE_BAD_WRITE_ALIGN ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf_fwrite (ptr, 1, len, psf) ; + + psf->write_current += count / blockwidth ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count ; +} /* sf_write_raw */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_write_short (SNDFILE *sndfile, const short *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_WRITE_ALIGN ; + return 0 ; + } ; + + if (psf->write_short == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_short (psf, ptr, len) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count ; +} /* sf_write_short */ + +sf_count_t +sf_writef_short (SNDFILE *sndfile, const short *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (psf->write_short == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_short (psf, ptr, frames * psf->sf.channels) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count / psf->sf.channels ; +} /* sf_writef_short */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_write_int (SNDFILE *sndfile, const int *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_WRITE_ALIGN ; + return 0 ; + } ; + + if (psf->write_int == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_int (psf, ptr, len) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count ; +} /* sf_write_int */ + +sf_count_t +sf_writef_int (SNDFILE *sndfile, const int *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (psf->write_int == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_int (psf, ptr, frames * psf->sf.channels) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count / psf->sf.channels ; +} /* sf_writef_int */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_write_float (SNDFILE *sndfile, const float *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_WRITE_ALIGN ; + return 0 ; + } ; + + if (psf->write_float == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_float (psf, ptr, len) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count ; +} /* sf_write_float */ + +sf_count_t +sf_writef_float (SNDFILE *sndfile, const float *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (psf->write_float == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_float (psf, ptr, frames * psf->sf.channels) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count / psf->sf.channels ; +} /* sf_writef_float */ + +/*------------------------------------------------------------------------------ +*/ + +sf_count_t +sf_write_double (SNDFILE *sndfile, const double *ptr, sf_count_t len) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (len % psf->sf.channels) + { psf->error = SFE_BAD_WRITE_ALIGN ; + return 0 ; + } ; + + if (psf->write_double == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_double (psf, ptr, len) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count ; +} /* sf_write_double */ + +sf_count_t +sf_writef_double (SNDFILE *sndfile, const double *ptr, sf_count_t frames) +{ SF_PRIVATE *psf ; + sf_count_t count ; + + VALIDATE_SNDFILE_AND_ASSIGN_PSF (sndfile, psf, 1) ; + + if (psf->file.mode == SFM_READ) + { psf->error = SFE_NOT_WRITEMODE ; + return 0 ; + } ; + + if (psf->write_double == NULL || psf->seek == NULL) + { psf->error = SFE_UNIMPLEMENTED ; + return 0 ; + } ; + + if (psf->last_op != SFM_WRITE) + if (psf->seek (psf, SFM_WRITE, psf->write_current) < 0) + return 0 ; + + if (psf->have_written == SF_FALSE && psf->write_header != NULL) + psf->write_header (psf, SF_FALSE) ; + psf->have_written = SF_TRUE ; + + count = psf->write_double (psf, ptr, frames * psf->sf.channels) ; + + psf->write_current += count / psf->sf.channels ; + + psf->last_op = SFM_WRITE ; + + if (psf->auto_header && psf->write_header != NULL) + psf->write_header (psf, SF_TRUE) ; + + if (psf->write_current > psf->sf.frames) + psf->sf.frames = psf->write_current ; + + return count / psf->sf.channels ; +} /* sf_writef_double */ + +/*========================================================================= +** Private functions. +*/ + +static int +try_resource_fork (SF_PRIVATE * psf) +{ int old_error = psf->error ; + + /* Set READ mode now, to see if resource fork exists. */ + psf->rsrc.mode = SFM_READ ; + if (psf_open_rsrc (psf) != 0) + { psf->error = old_error ; + return 0 ; + } ; + + /* More checking here. */ + psf_log_printf (psf, "Resource fork : %s\n", psf->rsrc.path.c) ; + + return SF_FORMAT_SD2 ; +} /* try_resource_fork */ + +static int +format_from_extension (SF_PRIVATE *psf) +{ char *cptr ; + char buffer [16] ; + int format = 0 ; + + if ((cptr = strrchr (psf->file.name.c, '.')) == NULL) + return 0 ; + + cptr ++ ; + if (strlen (cptr) > sizeof (buffer) - 1) + return 0 ; + + psf_strlcpy (buffer, sizeof (buffer), cptr) ; + buffer [sizeof (buffer) - 1] = 0 ; + + /* Convert everything in the buffer to lower case. */ + cptr = buffer ; + while (*cptr) + { *cptr = tolower (*cptr) ; + cptr ++ ; + } ; + + cptr = buffer ; + + if (strcmp (cptr, "au") == 0) + { psf->sf.channels = 1 ; + psf->sf.samplerate = 8000 ; + format = SF_FORMAT_RAW | SF_FORMAT_ULAW ; + } + else if (strcmp (cptr, "snd") == 0) + { psf->sf.channels = 1 ; + psf->sf.samplerate = 8000 ; + format = SF_FORMAT_RAW | SF_FORMAT_ULAW ; + } + + else if (strcmp (cptr, "vox") == 0 || strcmp (cptr, "vox8") == 0) + { psf->sf.channels = 1 ; + psf->sf.samplerate = 8000 ; + format = SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM ; + } + else if (strcmp (cptr, "vox6") == 0) + { psf->sf.channels = 1 ; + psf->sf.samplerate = 6000 ; + format = SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM ; + } + else if (strcmp (cptr, "gsm") == 0) + { psf->sf.channels = 1 ; + psf->sf.samplerate = 8000 ; + format = SF_FORMAT_RAW | SF_FORMAT_GSM610 ; + } + + /* For RAW files, make sure the dataoffset if set correctly. */ + if ((SF_CONTAINER (format)) == SF_FORMAT_RAW) + psf->dataoffset = 0 ; + + return format ; +} /* format_from_extension */ + +static int +guess_file_type (SF_PRIVATE *psf) +{ int buffer [3], format ; + + if (psf_binheader_readf (psf, "b", &buffer, SIGNED_SIZEOF (buffer)) != SIGNED_SIZEOF (buffer)) + { psf->error = SFE_BAD_FILE_READ ; + return 0 ; + } ; + + if ((buffer [0] == MAKE_MARKER ('R', 'I', 'F', 'F') || buffer [0] == MAKE_MARKER ('R', 'I', 'F', 'X')) + && buffer [2] == MAKE_MARKER ('W', 'A', 'V', 'E')) + return SF_FORMAT_WAV ; + + if (buffer [0] == MAKE_MARKER ('F', 'O', 'R', 'M')) + { if (buffer [2] == MAKE_MARKER ('A', 'I', 'F', 'F') || buffer [2] == MAKE_MARKER ('A', 'I', 'F', 'C')) + return SF_FORMAT_AIFF ; + if (buffer [2] == MAKE_MARKER ('8', 'S', 'V', 'X') || buffer [2] == MAKE_MARKER ('1', '6', 'S', 'V')) + return SF_FORMAT_SVX ; + return 0 ; + } ; + + if (buffer [0] == MAKE_MARKER ('.', 's', 'n', 'd') || buffer [0] == MAKE_MARKER ('d', 'n', 's', '.')) + return SF_FORMAT_AU ; + + if ((buffer [0] == MAKE_MARKER ('f', 'a', 'p', ' ') || buffer [0] == MAKE_MARKER (' ', 'p', 'a', 'f'))) + return SF_FORMAT_PAF ; + + if (buffer [0] == MAKE_MARKER ('N', 'I', 'S', 'T')) + return SF_FORMAT_NIST ; + + if (buffer [0] == MAKE_MARKER ('C', 'r', 'e', 'a') && buffer [1] == MAKE_MARKER ('t', 'i', 'v', 'e')) + return SF_FORMAT_VOC ; + + if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0xF8, 0xFF)) == MAKE_MARKER (0x64, 0xA3, 0x00, 0x00) || + (buffer [0] & MAKE_MARKER (0xFF, 0xF8, 0xFF, 0xFF)) == MAKE_MARKER (0x00, 0x00, 0xA3, 0x64)) + return SF_FORMAT_IRCAM ; + + if (buffer [0] == MAKE_MARKER ('r', 'i', 'f', 'f')) + return SF_FORMAT_W64 ; + + if (buffer [0] == MAKE_MARKER (0, 0, 0x03, 0xE8) && buffer [1] == MAKE_MARKER (0, 0, 0, 1) && + buffer [2] == MAKE_MARKER (0, 0, 0, 1)) + return SF_FORMAT_MAT4 ; + + if (buffer [0] == MAKE_MARKER (0, 0, 0, 0) && buffer [1] == MAKE_MARKER (1, 0, 0, 0) && + buffer [2] == MAKE_MARKER (1, 0, 0, 0)) + return SF_FORMAT_MAT4 ; + + if (buffer [0] == MAKE_MARKER ('M', 'A', 'T', 'L') && buffer [1] == MAKE_MARKER ('A', 'B', ' ', '5')) + return SF_FORMAT_MAT5 ; + + if (buffer [0] == MAKE_MARKER ('P', 'V', 'F', '1')) + return SF_FORMAT_PVF ; + + if (buffer [0] == MAKE_MARKER ('E', 'x', 't', 'e') && buffer [1] == MAKE_MARKER ('n', 'd', 'e', 'd') && + buffer [2] == MAKE_MARKER (' ', 'I', 'n', 's')) + return SF_FORMAT_XI ; + + if (buffer [0] == MAKE_MARKER ('c', 'a', 'f', 'f') && buffer [2] == MAKE_MARKER ('d', 'e', 's', 'c')) + return SF_FORMAT_CAF ; + + if (buffer [0] == MAKE_MARKER ('O', 'g', 'g', 'S')) + return SF_FORMAT_OGG ; + + if (buffer [0] == MAKE_MARKER ('A', 'L', 'a', 'w') && buffer [1] == MAKE_MARKER ('S', 'o', 'u', 'n') + && buffer [2] == MAKE_MARKER ('d', 'F', 'i', 'l')) + return SF_FORMAT_WVE ; + + if (buffer [0] == MAKE_MARKER ('D', 'i', 'a', 'm') && buffer [1] == MAKE_MARKER ('o', 'n', 'd', 'W') + && buffer [2] == MAKE_MARKER ('a', 'r', 'e', ' ')) + return SF_FORMAT_DWD ; + + if (buffer [0] == MAKE_MARKER ('L', 'M', '8', '9') || buffer [0] == MAKE_MARKER ('5', '3', 0, 0)) + return SF_FORMAT_TXW ; + + if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0x80, 0xFF)) == MAKE_MARKER (0xF0, 0x7E, 0, 0x01)) + return SF_FORMAT_SDS ; + + if ((buffer [0] & MAKE_MARKER (0xFF, 0xFF, 0, 0)) == MAKE_MARKER (1, 4, 0, 0)) + return SF_FORMAT_MPC2K ; + + if (buffer [0] == MAKE_MARKER ('C', 'A', 'T', ' ') && buffer [2] == MAKE_MARKER ('R', 'E', 'X', '2')) + return SF_FORMAT_REX2 ; + + if (buffer [0] == MAKE_MARKER (0x30, 0x26, 0xB2, 0x75) && buffer [1] == MAKE_MARKER (0x8E, 0x66, 0xCF, 0x11)) + return 0 /*-SF_FORMAT_WMA-*/ ; + + /* HMM (Hidden Markov Model) Tool Kit. */ + if (2 * BEI2H_INT (buffer [0]) + 12 == psf->filelength && buffer [2] == MAKE_MARKER (0, 2, 0, 0)) + return SF_FORMAT_HTK ; + + if (buffer [0] == MAKE_MARKER ('f', 'L', 'a', 'C')) + return SF_FORMAT_FLAC ; + + if (buffer [0] == MAKE_MARKER ('2', 'B', 'I', 'T')) + return SF_FORMAT_AVR ; + + if (buffer [0] == MAKE_MARKER ('R', 'F', '6', '4') && buffer [2] == MAKE_MARKER ('W', 'A', 'V', 'E')) + return SF_FORMAT_RF64 ; + + if (buffer [0] == MAKE_MARKER ('I', 'D', '3', 3)) + { psf_log_printf (psf, "Found 'ID3' marker.\n") ; + if (id3_skip (psf)) + return guess_file_type (psf) ; + return 0 ; + } ; + + /* Turtle Beach SMP 16-bit */ + if (buffer [0] == MAKE_MARKER ('S', 'O', 'U', 'N') && buffer [1] == MAKE_MARKER ('D', ' ', 'S', 'A')) + return 0 ; + + /* Yamaha sampler format. */ + if (buffer [0] == MAKE_MARKER ('S', 'Y', '8', '0') || buffer [0] == MAKE_MARKER ('S', 'Y', '8', '5')) + return 0 ; + + if (buffer [0] == MAKE_MARKER ('a', 'j', 'k', 'g')) + return 0 /*-SF_FORMAT_SHN-*/ ; + + /* This must be the last one. */ + if (psf->filelength > 0 && (format = try_resource_fork (psf)) != 0) + return format ; + + return 0 ; +} /* guess_file_type */ + + +static int +validate_sfinfo (SF_INFO *sfinfo) +{ if (sfinfo->samplerate < 1) + return 0 ; + if (sfinfo->frames < 0) + return 0 ; + if (sfinfo->channels < 1) + return 0 ; + if ((SF_CONTAINER (sfinfo->format)) == 0) + return 0 ; + if ((SF_CODEC (sfinfo->format)) == 0) + return 0 ; + if (sfinfo->sections < 1) + return 0 ; + return 1 ; +} /* validate_sfinfo */ + +static int +validate_psf (SF_PRIVATE *psf) +{ + if (psf->datalength < 0) + { psf_log_printf (psf, "Invalid SF_PRIVATE field : datalength == %D.\n", psf->datalength) ; + return 0 ; + } ; + if (psf->dataoffset < 0) + { psf_log_printf (psf, "Invalid SF_PRIVATE field : dataoffset == %D.\n", psf->dataoffset) ; + return 0 ; + } ; + if (psf->blockwidth && psf->blockwidth != psf->sf.channels * psf->bytewidth) + { psf_log_printf (psf, "Invalid SF_PRIVATE field : channels * bytewidth == %d.\n", + psf->sf.channels * psf->bytewidth) ; + return 0 ; + } ; + return 1 ; +} /* validate_psf */ + +static void +save_header_info (SF_PRIVATE *psf) +{ snprintf (sf_logbuffer, sizeof (sf_logbuffer), "%s", psf->logbuffer) ; +} /* save_header_info */ + +static void +copy_filename (SF_PRIVATE *psf, const char *path) +{ const char *ccptr ; + char *cptr ; + + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", path) ; + if ((ccptr = strrchr (path, '/')) || (ccptr = strrchr (path, '\\'))) + ccptr ++ ; + else + ccptr = path ; + + snprintf (psf->file.name.c, sizeof (psf->file.name.c), "%s", ccptr) ; + + /* Now grab the directory. */ + snprintf (psf->file.dir.c, sizeof (psf->file.dir.c), "%s", path) ; + if ((cptr = strrchr (psf->file.dir.c, '/')) || (cptr = strrchr (psf->file.dir.c, '\\'))) + cptr [1] = 0 ; + else + psf->file.dir.c [0] = 0 ; + + return ; +} /* copy_filename */ + +/*============================================================================== +*/ + +static int +psf_close (SF_PRIVATE *psf) +{ int error = 0 ; + + if (psf->codec_close) + error = psf->codec_close (psf) ; + if (psf->container_close) + error = psf->container_close (psf) ; + + error = psf_fclose (psf) ; + psf_close_rsrc (psf) ; + + if (psf->container_data) + free (psf->container_data) ; + + if (psf->codec_data) + free (psf->codec_data) ; + + if (psf->interleave) + free (psf->interleave) ; + + if (psf->dither) + free (psf->dither) ; + + if (psf->peak_info) + free (psf->peak_info) ; + + if (psf->broadcast_16k) + free (psf->broadcast_16k) ; + + if (psf->loop_info) + free (psf->loop_info) ; + + if (psf->instrument) + free (psf->instrument) ; + + if (psf->channel_map) + free (psf->channel_map) ; + + if (psf->format_desc) + { psf->format_desc [0] = 0 ; + free (psf->format_desc) ; + } ; + + memset (psf, 0, sizeof (SF_PRIVATE)) ; + free (psf) ; + + return error ; +} /* psf_close */ + +SNDFILE * +psf_open_file (SF_PRIVATE *psf, SF_INFO *sfinfo) +{ int error, format ; + + sf_errno = error = 0 ; + sf_logbuffer [0] = 0 ; + + if (psf->error) + { error = psf->error ; + goto error_exit ; + } ; + + if (psf->file.mode != SFM_READ && psf->file.mode != SFM_WRITE && psf->file.mode != SFM_RDWR) + { error = SFE_BAD_OPEN_MODE ; + goto error_exit ; + } ; + + if (sfinfo == NULL) + { error = SFE_BAD_SF_INFO_PTR ; + goto error_exit ; + } ; + + /* Zero out these fields. */ + sfinfo->frames = 0 ; + sfinfo->sections = 0 ; + sfinfo->seekable = 0 ; + + if (psf->file.mode == SFM_READ) + { if ((SF_CONTAINER (sfinfo->format)) == SF_FORMAT_RAW) + { if (sf_format_check (sfinfo) == 0) + { error = SFE_RAW_BAD_FORMAT ; + goto error_exit ; + } ; + } + else + memset (sfinfo, 0, sizeof (SF_INFO)) ; + } ; + + memcpy (&(psf->sf), sfinfo, sizeof (SF_INFO)) ; + + psf->Magick = SNDFILE_MAGICK ; + psf->norm_float = SF_TRUE ; + psf->norm_double = SF_TRUE ; + psf->dataoffset = -1 ; + psf->datalength = -1 ; + psf->read_current = -1 ; + psf->write_current = -1 ; + psf->auto_header = SF_FALSE ; + psf->rwf_endian = SF_ENDIAN_LITTLE ; + psf->seek = psf_default_seek ; + psf->float_int_mult = 0 ; + psf->float_max = -1.0 ; + + /* An attempt at a per SF_PRIVATE unique id. */ + psf->unique_id = psf_rand_int32 () ; + + psf->sf.sections = 1 ; + + psf->is_pipe = psf_is_pipe (psf) ; + + if (psf->is_pipe) + { psf->sf.seekable = SF_FALSE ; + psf->filelength = SF_COUNT_MAX ; + } + else + { psf->sf.seekable = SF_TRUE ; + + /* File is open, so get the length. */ + psf->filelength = psf_get_filelen (psf) ; + } ; + + if (psf->fileoffset > 0) + { switch (psf->file.mode) + { case SFM_READ : + if (psf->filelength < 44) + { psf_log_printf (psf, "Short filelength: %D (fileoffset: %D)\n", psf->filelength, psf->fileoffset) ; + error = SFE_BAD_OFFSET ; + goto error_exit ; + } ; + break ; + + case SFM_WRITE : + psf->fileoffset = 0 ; + psf_fseek (psf, 0, SEEK_END) ; + psf->fileoffset = psf_ftell (psf) ; + break ; + + case SFM_RDWR : + error = SFE_NO_EMBEDDED_RDWR ; + goto error_exit ; + } ; + + psf_log_printf (psf, "Embedded file offset : %D\n", psf->fileoffset) ; + } ; + + if (psf->filelength == SF_COUNT_MAX) + psf_log_printf (psf, "Length : unknown\n") ; + else + psf_log_printf (psf, "Length : %D\n", psf->filelength) ; + + if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0)) + { /* If the file is being opened for write or RDWR and the file is currently + ** empty, then the SF_INFO struct must contain valid data. + */ + if ((SF_CONTAINER (psf->sf.format)) == 0) + { error = SFE_ZERO_MAJOR_FORMAT ; + goto error_exit ; + } ; + if ((SF_CODEC (psf->sf.format)) == 0) + { error = SFE_ZERO_MINOR_FORMAT ; + goto error_exit ; + } ; + + if (sf_format_check (&(psf->sf)) == 0) + { error = SFE_BAD_OPEN_FORMAT ; + goto error_exit ; + } ; + } + else if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_RAW) + { /* If type RAW has not been specified then need to figure out file type. */ + psf->sf.format = guess_file_type (psf) ; + + if (psf->sf.format == 0) + psf->sf.format = format_from_extension (psf) ; + } ; + + /* Prevent unnecessary seeks */ + psf->last_op = psf->file.mode ; + + /* Set bytewidth if known. */ + switch (SF_CODEC (psf->sf.format)) + { case SF_FORMAT_PCM_S8 : + case SF_FORMAT_PCM_U8 : + case SF_FORMAT_ULAW : + case SF_FORMAT_ALAW : + case SF_FORMAT_DPCM_8 : + psf->bytewidth = 1 ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_DPCM_16 : + psf->bytewidth = 2 ; + break ; + + case SF_FORMAT_PCM_24 : + psf->bytewidth = 3 ; + break ; + + case SF_FORMAT_PCM_32 : + case SF_FORMAT_FLOAT : + psf->bytewidth = 4 ; + break ; + + case SF_FORMAT_DOUBLE : + psf->bytewidth = 8 ; + break ; + } ; + + /* Call the initialisation function for the relevant file type. */ + switch (SF_CONTAINER (psf->sf.format)) + { case SF_FORMAT_WAV : + case SF_FORMAT_WAVEX : + error = wav_open (psf) ; + break ; + + case SF_FORMAT_AIFF : + error = aiff_open (psf) ; + break ; + + case SF_FORMAT_AU : + error = au_open (psf) ; + break ; + + case SF_FORMAT_RAW : + error = raw_open (psf) ; + break ; + + case SF_FORMAT_W64 : + error = w64_open (psf) ; + break ; + + case SF_FORMAT_RF64 : + error = rf64_open (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_PAF : + error = paf_open (psf) ; + break ; + + case SF_FORMAT_SVX : + error = svx_open (psf) ; + break ; + + case SF_FORMAT_NIST : + error = nist_open (psf) ; + break ; + + case SF_FORMAT_IRCAM : + error = ircam_open (psf) ; + break ; + + case SF_FORMAT_VOC : + error = voc_open (psf) ; + break ; + + case SF_FORMAT_SDS : + error = sds_open (psf) ; + break ; + + case SF_FORMAT_OGG : + error = ogg_open (psf) ; + break ; + + case SF_FORMAT_TXW : + error = txw_open (psf) ; + break ; + + case SF_FORMAT_WVE : + error = wve_open (psf) ; + break ; + + case SF_FORMAT_DWD : + error = dwd_open (psf) ; + break ; + + case SF_FORMAT_MAT4 : + error = mat4_open (psf) ; + break ; + + case SF_FORMAT_MAT5 : + error = mat5_open (psf) ; + break ; + + case SF_FORMAT_PVF : + error = pvf_open (psf) ; + break ; + + case SF_FORMAT_XI : + error = xi_open (psf) ; + break ; + + case SF_FORMAT_HTK : + error = htk_open (psf) ; + break ; + + case SF_FORMAT_SD2 : + error = sd2_open (psf) ; + break ; + + case SF_FORMAT_REX2 : + error = rx2_open (psf) ; + break ; + + case SF_FORMAT_AVR : + error = avr_open (psf) ; + break ; + + case SF_FORMAT_FLAC : + error = flac_open (psf) ; + break ; + + case SF_FORMAT_CAF : + error = caf_open (psf) ; + break ; + + case SF_FORMAT_MPC2K : + error = mpc2k_open (psf) ; + break ; + + /* Lite remove end */ + + default : + error = SFE_UNKNOWN_FORMAT ; + } ; + + if (error) + goto error_exit ; + + /* For now, check whether embedding is supported. */ + format = SF_CONTAINER (psf->sf.format) ; + if (psf->fileoffset > 0) + { switch (format) + { case SF_FORMAT_WAV : + case SF_FORMAT_WAVEX : + case SF_FORMAT_AIFF : + case SF_FORMAT_AU : + /* Actual embedded files. */ + break ; + + case SF_FORMAT_FLAC : + /* Flac with an ID3v2 header? */ + break ; + + default : + error = SFE_NO_EMBED_SUPPORT ; + goto error_exit ; + } ; + } ; + + if (psf->fileoffset > 0) + psf_log_printf (psf, "Embedded file length : %D\n", psf->filelength) ; + + if (psf->file.mode == SFM_RDWR && sf_format_check (&(psf->sf)) == 0) + { error = SFE_BAD_MODE_RW ; + goto error_exit ; + } ; + + if (validate_sfinfo (&(psf->sf)) == 0) + { psf_log_SF_INFO (psf) ; + save_header_info (psf) ; + error = SFE_BAD_SF_INFO ; + goto error_exit ; + } ; + + if (validate_psf (psf) == 0) + { save_header_info (psf) ; + error = SFE_INTERNAL ; + goto error_exit ; + } ; + + psf->read_current = 0 ; + psf->write_current = 0 ; + if (psf->file.mode == SFM_RDWR) + { psf->write_current = psf->sf.frames ; + psf->have_written = psf->sf.frames > 0 ? SF_TRUE : SF_FALSE ; + } ; + + memcpy (sfinfo, &(psf->sf), sizeof (SF_INFO)) ; + + memcpy (sfinfo, &(psf->sf), sizeof (SF_INFO)) ; + + return (SNDFILE *) psf ; + +error_exit : + sf_errno = error ; + + if (error == SFE_SYSTEM) + snprintf (sf_syserr, sizeof (sf_syserr), "%s", psf->syserr) ; + snprintf (sf_logbuffer, sizeof (sf_logbuffer), "%s", psf->logbuffer) ; + + switch (error) + { case SF_ERR_SYSTEM : + case SF_ERR_UNSUPPORTED_ENCODING : + case SFE_UNIMPLEMENTED : + break ; + + case SFE_RAW_BAD_FORMAT : + break ; + + default : + if (psf->file.mode == SFM_READ) + { psf_log_printf (psf, "Parse error : %s\n", sf_error_number (error)) ; + error = SF_ERR_MALFORMED_FILE ; + } ; + } ; + + psf_close (psf) ; + return NULL ; +} /* psf_open_file */ + diff --git a/src/sndfile.h.in b/src/sndfile.h.in new file mode 100644 index 0000000..8926fc6 --- /dev/null +++ b/src/sndfile.h.in @@ -0,0 +1,666 @@ +/* +** Copyright (C) 1999-2011Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** sndfile.h -- system-wide definitions +** +** API documentation is in the doc/ directory of the source code tarball +** and at http://www.mega-nerd.com/libsndfile/api.html. +*/ + +#ifndef SNDFILE_H +#define SNDFILE_H + +/* This is the version 1.0.X header file. */ +#define SNDFILE_1 + +#include <stdio.h> +#include <sys/types.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* The following file types can be read and written. +** A file type would consist of a major type (ie SF_FORMAT_WAV) bitwise +** ORed with a minor type (ie SF_FORMAT_PCM). SF_FORMAT_TYPEMASK and +** SF_FORMAT_SUBMASK can be used to separate the major and minor file +** types. +*/ + +enum +{ /* Major formats. */ + SF_FORMAT_WAV = 0x010000, /* Microsoft WAV format (little endian default). */ + SF_FORMAT_AIFF = 0x020000, /* Apple/SGI AIFF format (big endian). */ + SF_FORMAT_AU = 0x030000, /* Sun/NeXT AU format (big endian). */ + SF_FORMAT_RAW = 0x040000, /* RAW PCM data. */ + SF_FORMAT_PAF = 0x050000, /* Ensoniq PARIS file format. */ + SF_FORMAT_SVX = 0x060000, /* Amiga IFF / SVX8 / SV16 format. */ + SF_FORMAT_NIST = 0x070000, /* Sphere NIST format. */ + SF_FORMAT_VOC = 0x080000, /* VOC files. */ + SF_FORMAT_IRCAM = 0x0A0000, /* Berkeley/IRCAM/CARL */ + SF_FORMAT_W64 = 0x0B0000, /* Sonic Foundry's 64 bit RIFF/WAV */ + SF_FORMAT_MAT4 = 0x0C0000, /* Matlab (tm) V4.2 / GNU Octave 2.0 */ + SF_FORMAT_MAT5 = 0x0D0000, /* Matlab (tm) V5.0 / GNU Octave 2.1 */ + SF_FORMAT_PVF = 0x0E0000, /* Portable Voice Format */ + SF_FORMAT_XI = 0x0F0000, /* Fasttracker 2 Extended Instrument */ + SF_FORMAT_HTK = 0x100000, /* HMM Tool Kit format */ + SF_FORMAT_SDS = 0x110000, /* Midi Sample Dump Standard */ + SF_FORMAT_AVR = 0x120000, /* Audio Visual Research */ + SF_FORMAT_WAVEX = 0x130000, /* MS WAVE with WAVEFORMATEX */ + SF_FORMAT_SD2 = 0x160000, /* Sound Designer 2 */ + SF_FORMAT_FLAC = 0x170000, /* FLAC lossless file format */ + SF_FORMAT_CAF = 0x180000, /* Core Audio File format */ + SF_FORMAT_WVE = 0x190000, /* Psion WVE format */ + SF_FORMAT_OGG = 0x200000, /* Xiph OGG container */ + SF_FORMAT_MPC2K = 0x210000, /* Akai MPC 2000 sampler */ + SF_FORMAT_RF64 = 0x220000, /* RF64 WAV file */ + + /* Subtypes from here on. */ + + SF_FORMAT_PCM_S8 = 0x0001, /* Signed 8 bit data */ + SF_FORMAT_PCM_16 = 0x0002, /* Signed 16 bit data */ + SF_FORMAT_PCM_24 = 0x0003, /* Signed 24 bit data */ + SF_FORMAT_PCM_32 = 0x0004, /* Signed 32 bit data */ + + SF_FORMAT_PCM_U8 = 0x0005, /* Unsigned 8 bit data (WAV and RAW only) */ + + SF_FORMAT_FLOAT = 0x0006, /* 32 bit float data */ + SF_FORMAT_DOUBLE = 0x0007, /* 64 bit float data */ + + SF_FORMAT_ULAW = 0x0010, /* U-Law encoded. */ + SF_FORMAT_ALAW = 0x0011, /* A-Law encoded. */ + SF_FORMAT_IMA_ADPCM = 0x0012, /* IMA ADPCM. */ + SF_FORMAT_MS_ADPCM = 0x0013, /* Microsoft ADPCM. */ + + SF_FORMAT_GSM610 = 0x0020, /* GSM 6.10 encoding. */ + SF_FORMAT_VOX_ADPCM = 0x0021, /* OKI / Dialogix ADPCM */ + + SF_FORMAT_G721_32 = 0x0030, /* 32kbs G721 ADPCM encoding. */ + SF_FORMAT_G723_24 = 0x0031, /* 24kbs G723 ADPCM encoding. */ + SF_FORMAT_G723_40 = 0x0032, /* 40kbs G723 ADPCM encoding. */ + + SF_FORMAT_DWVW_12 = 0x0040, /* 12 bit Delta Width Variable Word encoding. */ + SF_FORMAT_DWVW_16 = 0x0041, /* 16 bit Delta Width Variable Word encoding. */ + SF_FORMAT_DWVW_24 = 0x0042, /* 24 bit Delta Width Variable Word encoding. */ + SF_FORMAT_DWVW_N = 0x0043, /* N bit Delta Width Variable Word encoding. */ + + SF_FORMAT_DPCM_8 = 0x0050, /* 8 bit differential PCM (XI only) */ + SF_FORMAT_DPCM_16 = 0x0051, /* 16 bit differential PCM (XI only) */ + + SF_FORMAT_VORBIS = 0x0060, /* Xiph Vorbis encoding. */ + + /* Endian-ness options. */ + + SF_ENDIAN_FILE = 0x00000000, /* Default file endian-ness. */ + SF_ENDIAN_LITTLE = 0x10000000, /* Force little endian-ness. */ + SF_ENDIAN_BIG = 0x20000000, /* Force big endian-ness. */ + SF_ENDIAN_CPU = 0x30000000, /* Force CPU endian-ness. */ + + SF_FORMAT_SUBMASK = 0x0000FFFF, + SF_FORMAT_TYPEMASK = 0x0FFF0000, + SF_FORMAT_ENDMASK = 0x30000000 +} ; + +/* +** The following are the valid command numbers for the sf_command() +** interface. The use of these commands is documented in the file +** command.html in the doc directory of the source code distribution. +*/ + +enum +{ SFC_GET_LIB_VERSION = 0x1000, + SFC_GET_LOG_INFO = 0x1001, + SFC_GET_CURRENT_SF_INFO = 0x1002, + + + SFC_GET_NORM_DOUBLE = 0x1010, + SFC_GET_NORM_FLOAT = 0x1011, + SFC_SET_NORM_DOUBLE = 0x1012, + SFC_SET_NORM_FLOAT = 0x1013, + SFC_SET_SCALE_FLOAT_INT_READ = 0x1014, + SFC_SET_SCALE_INT_FLOAT_WRITE = 0x1015, + + SFC_GET_SIMPLE_FORMAT_COUNT = 0x1020, + SFC_GET_SIMPLE_FORMAT = 0x1021, + + SFC_GET_FORMAT_INFO = 0x1028, + + SFC_GET_FORMAT_MAJOR_COUNT = 0x1030, + SFC_GET_FORMAT_MAJOR = 0x1031, + SFC_GET_FORMAT_SUBTYPE_COUNT = 0x1032, + SFC_GET_FORMAT_SUBTYPE = 0x1033, + + SFC_CALC_SIGNAL_MAX = 0x1040, + SFC_CALC_NORM_SIGNAL_MAX = 0x1041, + SFC_CALC_MAX_ALL_CHANNELS = 0x1042, + SFC_CALC_NORM_MAX_ALL_CHANNELS = 0x1043, + SFC_GET_SIGNAL_MAX = 0x1044, + SFC_GET_MAX_ALL_CHANNELS = 0x1045, + + SFC_SET_ADD_PEAK_CHUNK = 0x1050, + SFC_SET_ADD_HEADER_PAD_CHUNK = 0x1051, + + SFC_UPDATE_HEADER_NOW = 0x1060, + SFC_SET_UPDATE_HEADER_AUTO = 0x1061, + + SFC_FILE_TRUNCATE = 0x1080, + + SFC_SET_RAW_START_OFFSET = 0x1090, + + SFC_SET_DITHER_ON_WRITE = 0x10A0, + SFC_SET_DITHER_ON_READ = 0x10A1, + + SFC_GET_DITHER_INFO_COUNT = 0x10A2, + SFC_GET_DITHER_INFO = 0x10A3, + + SFC_GET_EMBED_FILE_INFO = 0x10B0, + + SFC_SET_CLIPPING = 0x10C0, + SFC_GET_CLIPPING = 0x10C1, + + SFC_GET_INSTRUMENT = 0x10D0, + SFC_SET_INSTRUMENT = 0x10D1, + + SFC_GET_LOOP_INFO = 0x10E0, + + SFC_GET_BROADCAST_INFO = 0x10F0, + SFC_SET_BROADCAST_INFO = 0x10F1, + + SFC_GET_CHANNEL_MAP_INFO = 0x1100, + SFC_SET_CHANNEL_MAP_INFO = 0x1101, + + SFC_RAW_DATA_NEEDS_ENDSWAP = 0x1110, + + /* Support for Wavex Ambisonics Format */ + SFC_WAVEX_SET_AMBISONIC = 0x1200, + SFC_WAVEX_GET_AMBISONIC = 0x1201, + + SFC_SET_VBR_ENCODING_QUALITY = 0x1300, + + /* Following commands for testing only. */ + SFC_TEST_IEEE_FLOAT_REPLACE = 0x6001, + + /* + ** SFC_SET_ADD_* values are deprecated and will disappear at some + ** time in the future. They are guaranteed to be here up to and + ** including version 1.0.8 to avoid breakage of existng software. + ** They currently do nothing and will continue to do nothing. + */ + SFC_SET_ADD_DITHER_ON_WRITE = 0x1070, + SFC_SET_ADD_DITHER_ON_READ = 0x1071 +} ; + + +/* +** String types that can be set and read from files. Not all file types +** support this and even the file types which support one, may not support +** all string types. +*/ + +enum +{ SF_STR_TITLE = 0x01, + SF_STR_COPYRIGHT = 0x02, + SF_STR_SOFTWARE = 0x03, + SF_STR_ARTIST = 0x04, + SF_STR_COMMENT = 0x05, + SF_STR_DATE = 0x06, + SF_STR_ALBUM = 0x07, + SF_STR_LICENSE = 0x08, + SF_STR_TRACKNUMBER = 0x09, + SF_STR_GENRE = 0x10 +} ; + +/* +** Use the following as the start and end index when doing metadata +** transcoding. +*/ + +#define SF_STR_FIRST SF_STR_TITLE +#define SF_STR_LAST SF_STR_GENRE + +enum +{ /* True and false */ + SF_FALSE = 0, + SF_TRUE = 1, + + /* Modes for opening files. */ + SFM_READ = 0x10, + SFM_WRITE = 0x20, + SFM_RDWR = 0x30, + + SF_AMBISONIC_NONE = 0x40, + SF_AMBISONIC_B_FORMAT = 0x41 +} ; + +/* Public error values. These are guaranteed to remain unchanged for the duration +** of the library major version number. +** There are also a large number of private error numbers which are internal to +** the library which can change at any time. +*/ + +enum +{ SF_ERR_NO_ERROR = 0, + SF_ERR_UNRECOGNISED_FORMAT = 1, + SF_ERR_SYSTEM = 2, + SF_ERR_MALFORMED_FILE = 3, + SF_ERR_UNSUPPORTED_ENCODING = 4 +} ; + + +/* Channel map values (used with SFC_SET/GET_CHANNEL_MAP). +*/ + +enum +{ SF_CHANNEL_MAP_INVALID = 0, + SF_CHANNEL_MAP_MONO = 1, + SF_CHANNEL_MAP_LEFT, /* Apple calls this 'Left' */ + SF_CHANNEL_MAP_RIGHT, /* Apple calls this 'Right' */ + SF_CHANNEL_MAP_CENTER, /* Apple calls this 'Center' */ + SF_CHANNEL_MAP_FRONT_LEFT, + SF_CHANNEL_MAP_FRONT_RIGHT, + SF_CHANNEL_MAP_FRONT_CENTER, + SF_CHANNEL_MAP_REAR_CENTER, /* Apple calls this 'Center Surround', Msft calls this 'Back Center' */ + SF_CHANNEL_MAP_REAR_LEFT, /* Apple calls this 'Left Surround', Msft calls this 'Back Left' */ + SF_CHANNEL_MAP_REAR_RIGHT, /* Apple calls this 'Right Surround', Msft calls this 'Back Right' */ + SF_CHANNEL_MAP_LFE, /* Apple calls this 'LFEScreen', Msft calls this 'Low Frequency' */ + SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER, /* Apple calls this 'Left Center' */ + SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER, /* Apple calls this 'Right Center */ + SF_CHANNEL_MAP_SIDE_LEFT, /* Apple calls this 'Left Surround Direct' */ + SF_CHANNEL_MAP_SIDE_RIGHT, /* Apple calls this 'Right Surround Direct' */ + SF_CHANNEL_MAP_TOP_CENTER, /* Apple calls this 'Top Center Surround' */ + SF_CHANNEL_MAP_TOP_FRONT_LEFT, /* Apple calls this 'Vertical Height Left' */ + SF_CHANNEL_MAP_TOP_FRONT_RIGHT, /* Apple calls this 'Vertical Height Right' */ + SF_CHANNEL_MAP_TOP_FRONT_CENTER, /* Apple calls this 'Vertical Height Center' */ + SF_CHANNEL_MAP_TOP_REAR_LEFT, /* Apple and MS call this 'Top Back Left' */ + SF_CHANNEL_MAP_TOP_REAR_RIGHT, /* Apple and MS call this 'Top Back Right' */ + SF_CHANNEL_MAP_TOP_REAR_CENTER, /* Apple and MS call this 'Top Back Center' */ + + SF_CHANNEL_MAP_AMBISONIC_B_W, + SF_CHANNEL_MAP_AMBISONIC_B_X, + SF_CHANNEL_MAP_AMBISONIC_B_Y, + SF_CHANNEL_MAP_AMBISONIC_B_Z, + + SF_CHANNEL_MAP_MAX +} ; + + +/* A SNDFILE* pointer can be passed around much like stdio.h's FILE* pointer. */ + +typedef struct SNDFILE_tag SNDFILE ; + +/* The following typedef is system specific and is defined when libsndfile is +** compiled. sf_count_t will be a 64 bit value when the underlying OS allows +** 64 bit file offsets. +** On windows, we need to allow the same header file to be compiler by both GCC +** and the Microsoft compiler. +*/ + +#if (defined (_MSCVER) || defined (_MSC_VER)) +typedef __int64 sf_count_t ; +#define SF_COUNT_MAX 0x7fffffffffffffffi64 +#else +typedef @TYPEOF_SF_COUNT_T@ sf_count_t ; +#define SF_COUNT_MAX @SF_COUNT_MAX@ +#endif + + +/* A pointer to a SF_INFO structure is passed to sf_open () and filled in. +** On write, the SF_INFO structure is filled in by the user and passed into +** sf_open (). +*/ + +struct SF_INFO +{ sf_count_t frames ; /* Used to be called samples. Changed to avoid confusion. */ + int samplerate ; + int channels ; + int format ; + int sections ; + int seekable ; +} ; + +typedef struct SF_INFO SF_INFO ; + +/* The SF_FORMAT_INFO struct is used to retrieve information about the sound +** file formats libsndfile supports using the sf_command () interface. +** +** Using this interface will allow applications to support new file formats +** and encoding types when libsndfile is upgraded, without requiring +** re-compilation of the application. +** +** Please consult the libsndfile documentation (particularly the information +** on the sf_command () interface) for examples of its use. +*/ + +typedef struct +{ int format ; + const char *name ; + const char *extension ; +} SF_FORMAT_INFO ; + +/* +** Enums and typedefs for adding dither on read and write. +** See the html documentation for sf_command(), SFC_SET_DITHER_ON_WRITE +** and SFC_SET_DITHER_ON_READ. +*/ + +enum +{ SFD_DEFAULT_LEVEL = 0, + SFD_CUSTOM_LEVEL = 0x40000000, + + SFD_NO_DITHER = 500, + SFD_WHITE = 501, + SFD_TRIANGULAR_PDF = 502 +} ; + +typedef struct +{ int type ; + double level ; + const char *name ; +} SF_DITHER_INFO ; + +/* Struct used to retrieve information about a file embedded within a +** larger file. See SFC_GET_EMBED_FILE_INFO. +*/ + +typedef struct +{ sf_count_t offset ; + sf_count_t length ; +} SF_EMBED_FILE_INFO ; + +/* +** Structs used to retrieve music sample information from a file. +*/ + +enum +{ /* + ** The loop mode field in SF_INSTRUMENT will be one of the following. + */ + SF_LOOP_NONE = 800, + SF_LOOP_FORWARD, + SF_LOOP_BACKWARD, + SF_LOOP_ALTERNATING +} ; + +typedef struct +{ int gain ; + char basenote, detune ; + char velocity_lo, velocity_hi ; + char key_lo, key_hi ; + int loop_count ; + + struct + { int mode ; + unsigned int start ; + unsigned int end ; + unsigned int count ; + } loops [16] ; /* make variable in a sensible way */ +} SF_INSTRUMENT ; + + + +/* Struct used to retrieve loop information from a file.*/ +typedef struct +{ + short time_sig_num ; /* any positive integer > 0 */ + short time_sig_den ; /* any positive power of 2 > 0 */ + int loop_mode ; /* see SF_LOOP enum */ + + int num_beats ; /* this is NOT the amount of quarter notes !!!*/ + /* a full bar of 4/4 is 4 beats */ + /* a full bar of 7/8 is 7 beats */ + + float bpm ; /* suggestion, as it can be calculated using other fields:*/ + /* file's lenght, file's sampleRate and our time_sig_den*/ + /* -> bpms are always the amount of _quarter notes_ per minute */ + + int root_key ; /* MIDI note, or -1 for None */ + int future [6] ; +} SF_LOOP_INFO ; + + +/* Struct used to retrieve broadcast (EBU) information from a file. +** Strongly (!) based on EBU "bext" chunk format used in Broadcast WAVE. +*/ +#define SF_BROADCAST_INFO_VAR(coding_hist_size) \ + struct \ + { char description [256] ; \ + char originator [32] ; \ + char originator_reference [32] ; \ + char origination_date [10] ; \ + char origination_time [8] ; \ + unsigned int time_reference_low ; \ + unsigned int time_reference_high ; \ + short version ; \ + char umid [64] ; \ + char reserved [190] ; \ + unsigned int coding_history_size ; \ + char coding_history [coding_hist_size] ; \ + } + +/* SF_BROADCAST_INFO is the above struct with coding_history field of 256 bytes. */ +typedef SF_BROADCAST_INFO_VAR (256) SF_BROADCAST_INFO ; + + +/* Virtual I/O functionality. */ + +typedef sf_count_t (*sf_vio_get_filelen) (void *user_data) ; +typedef sf_count_t (*sf_vio_seek) (sf_count_t offset, int whence, void *user_data) ; +typedef sf_count_t (*sf_vio_read) (void *ptr, sf_count_t count, void *user_data) ; +typedef sf_count_t (*sf_vio_write) (const void *ptr, sf_count_t count, void *user_data) ; +typedef sf_count_t (*sf_vio_tell) (void *user_data) ; + +struct SF_VIRTUAL_IO +{ sf_vio_get_filelen get_filelen ; + sf_vio_seek seek ; + sf_vio_read read ; + sf_vio_write write ; + sf_vio_tell tell ; +} ; + +typedef struct SF_VIRTUAL_IO SF_VIRTUAL_IO ; + + +/* Open the specified file for read, write or both. On error, this will +** return a NULL pointer. To find the error number, pass a NULL SNDFILE +** to sf_strerror (). +** All calls to sf_open() should be matched with a call to sf_close(). +*/ + +SNDFILE* sf_open (const char *path, int mode, SF_INFO *sfinfo) ; + + +/* Use the existing file descriptor to create a SNDFILE object. If close_desc +** is TRUE, the file descriptor will be closed when sf_close() is called. If +** it is FALSE, the descritor will not be closed. +** When passed a descriptor like this, the library will assume that the start +** of file header is at the current file offset. This allows sound files within +** larger container files to be read and/or written. +** On error, this will return a NULL pointer. To find the error number, pass a +** NULL SNDFILE to sf_strerror (). +** All calls to sf_open_fd() should be matched with a call to sf_close(). + +*/ + +SNDFILE* sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) ; + +SNDFILE* sf_open_virtual (SF_VIRTUAL_IO *sfvirtual, int mode, SF_INFO *sfinfo, void *user_data) ; + + +/* sf_error () returns a error number which can be translated to a text +** string using sf_error_number(). +*/ + +int sf_error (SNDFILE *sndfile) ; + + +/* sf_strerror () returns to the caller a pointer to the current error message for +** the given SNDFILE. +*/ + +const char* sf_strerror (SNDFILE *sndfile) ; + + +/* sf_error_number () allows the retrieval of the error string for each internal +** error number. +** +*/ + +const char* sf_error_number (int errnum) ; + + +/* The following two error functions are deprecated but they will remain in the +** library for the forseeable future. The function sf_strerror() should be used +** in their place. +*/ + +int sf_perror (SNDFILE *sndfile) ; +int sf_error_str (SNDFILE *sndfile, char* str, size_t len) ; + + +/* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */ + +int sf_command (SNDFILE *sndfile, int command, void *data, int datasize) ; + + +/* Return TRUE if fields of the SF_INFO struct are a valid combination of values. */ + +int sf_format_check (const SF_INFO *info) ; + + +/* Seek within the waveform data chunk of the SNDFILE. sf_seek () uses +** the same values for whence (SEEK_SET, SEEK_CUR and SEEK_END) as +** stdio.h function fseek (). +** An offset of zero with whence set to SEEK_SET will position the +** read / write pointer to the first data sample. +** On success sf_seek returns the current position in (multi-channel) +** samples from the start of the file. +** Please see the libsndfile documentation for moving the read pointer +** separately from the write pointer on files open in mode SFM_RDWR. +** On error all of these functions return -1. +*/ + +sf_count_t sf_seek (SNDFILE *sndfile, sf_count_t frames, int whence) ; + + +/* Functions for retrieving and setting string data within sound files. +** Not all file types support this features; AIFF and WAV do. For both +** functions, the str_type parameter must be one of the SF_STR_* values +** defined above. +** On error, sf_set_string() returns non-zero while sf_get_string() +** returns NULL. +*/ + +int sf_set_string (SNDFILE *sndfile, int str_type, const char* str) ; + +const char* sf_get_string (SNDFILE *sndfile, int str_type) ; + + +/* Return the library version string. */ + +const char * sf_version_string (void) ; + + +/* Functions for reading/writing the waveform data of a sound file. +*/ + +sf_count_t sf_read_raw (SNDFILE *sndfile, void *ptr, sf_count_t bytes) ; +sf_count_t sf_write_raw (SNDFILE *sndfile, const void *ptr, sf_count_t bytes) ; + + +/* Functions for reading and writing the data chunk in terms of frames. +** The number of items actually read/written = frames * number of channels. +** sf_xxxx_raw read/writes the raw data bytes from/to the file +** sf_xxxx_short passes data in the native short format +** sf_xxxx_int passes data in the native int format +** sf_xxxx_float passes data in the native float format +** sf_xxxx_double passes data in the native double format +** All of these read/write function return number of frames read/written. +*/ + +sf_count_t sf_readf_short (SNDFILE *sndfile, short *ptr, sf_count_t frames) ; +sf_count_t sf_writef_short (SNDFILE *sndfile, const short *ptr, sf_count_t frames) ; + +sf_count_t sf_readf_int (SNDFILE *sndfile, int *ptr, sf_count_t frames) ; +sf_count_t sf_writef_int (SNDFILE *sndfile, const int *ptr, sf_count_t frames) ; + +sf_count_t sf_readf_float (SNDFILE *sndfile, float *ptr, sf_count_t frames) ; +sf_count_t sf_writef_float (SNDFILE *sndfile, const float *ptr, sf_count_t frames) ; + +sf_count_t sf_readf_double (SNDFILE *sndfile, double *ptr, sf_count_t frames) ; +sf_count_t sf_writef_double (SNDFILE *sndfile, const double *ptr, sf_count_t frames) ; + + +/* Functions for reading and writing the data chunk in terms of items. +** Otherwise similar to above. +** All of these read/write function return number of items read/written. +*/ + +sf_count_t sf_read_short (SNDFILE *sndfile, short *ptr, sf_count_t items) ; +sf_count_t sf_write_short (SNDFILE *sndfile, const short *ptr, sf_count_t items) ; + +sf_count_t sf_read_int (SNDFILE *sndfile, int *ptr, sf_count_t items) ; +sf_count_t sf_write_int (SNDFILE *sndfile, const int *ptr, sf_count_t items) ; + +sf_count_t sf_read_float (SNDFILE *sndfile, float *ptr, sf_count_t items) ; +sf_count_t sf_write_float (SNDFILE *sndfile, const float *ptr, sf_count_t items) ; + +sf_count_t sf_read_double (SNDFILE *sndfile, double *ptr, sf_count_t items) ; +sf_count_t sf_write_double (SNDFILE *sndfile, const double *ptr, sf_count_t items) ; + + +/* Close the SNDFILE and clean up all memory allocations associated with this +** file. +** Returns 0 on success, or an error number. +*/ + +int sf_close (SNDFILE *sndfile) ; + + +/* If the file is opened SFM_WRITE or SFM_RDWR, call fsync() on the file +** to force the writing of data to disk. If the file is opened SFM_READ +** no action is taken. +*/ + +void sf_write_sync (SNDFILE *sndfile) ; + + + +/* The function sf_wchar_open() is Windows Only! +** Open a file passing in a Windows Unicode filename. Otherwise, this is +** the same as sf_open(). +** +** In order for this to work, you need to do the following: +** +** #include <windows.h> +** #define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1 +** #including <sndfile.h> +*/ + +#if (defined (ENABLE_SNDFILE_WINDOWS_PROTOTYPES) && ENABLE_SNDFILE_WINDOWS_PROTOTYPES) +SNDFILE* sf_wchar_open (LPCWSTR wpath, int mode, SF_INFO *sfinfo) ; +#endif + + + +#ifdef __cplusplus +} /* extern "C" */ +#endif /* __cplusplus */ + +#endif /* SNDFILE_H */ + diff --git a/src/sndfile.hh b/src/sndfile.hh new file mode 100644 index 0000000..d80ec4c --- /dev/null +++ b/src/sndfile.hh @@ -0,0 +1,422 @@ +/* +** Copyright (C) 2005-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** All rights reserved. +** +** Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the author nor the names of any contributors may be used +** to endorse or promote products derived from this software without +** specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR +** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/* +** The above modified BSD style license (GPL and LGPL compatible) applies to +** this file. It does not apply to libsndfile itself which is released under +** the GNU LGPL or the libsndfile test suite which is released under the GNU +** GPL. +** This means that this header file can be used under this modified BSD style +** license, but the LGPL still holds for the libsndfile library itself. +*/ + +/* +** sndfile.hh -- A lightweight C++ wrapper for the libsndfile API. +** +** All the methods are inlines and all functionality is contained in this +** file. There is no separate implementation file. +** +** API documentation is in the doc/ directory of the source code tarball +** and at http://www.mega-nerd.com/libsndfile/api.html. +*/ + +#ifndef SNDFILE_HH +#define SNDFILE_HH + +#include <sndfile.h> + +#include <string> +#include <new> // for std::nothrow + +class SndfileHandle +{ private : + struct SNDFILE_ref + { SNDFILE_ref (void) ; + ~SNDFILE_ref (void) ; + + SNDFILE *sf ; + SF_INFO sfinfo ; + int ref ; + } ; + + SNDFILE_ref *p ; + + public : + /* Default constructor */ + SndfileHandle (void) : p (NULL) {} ; + SndfileHandle (const char *path, int mode = SFM_READ, + int format = 0, int channels = 0, int samplerate = 0) ; + SndfileHandle (std::string const & path, int mode = SFM_READ, + int format = 0, int channels = 0, int samplerate = 0) ; + SndfileHandle (int fd, bool close_desc, int mode = SFM_READ, + int format = 0, int channels = 0, int samplerate = 0) ; + +#ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES + SndfileHandle (LPCWSTR wpath, int mode = SFM_READ, + int format = 0, int channels = 0, int samplerate = 0) ; +#endif + + ~SndfileHandle (void) ; + + SndfileHandle (const SndfileHandle &orig) ; + SndfileHandle & operator = (const SndfileHandle &rhs) ; + + /* Mainly for debugging/testing. */ + int refCount (void) const { return (p == NULL) ? 0 : p->ref ; } + + operator bool () const { return (p != NULL) ; } + + bool operator == (const SndfileHandle &rhs) const { return (p == rhs.p) ; } + + sf_count_t frames (void) const { return p ? p->sfinfo.frames : 0 ; } + int format (void) const { return p ? p->sfinfo.format : 0 ; } + int channels (void) const { return p ? p->sfinfo.channels : 0 ; } + int samplerate (void) const { return p ? p->sfinfo.samplerate : 0 ; } + + int error (void) const ; + const char * strError (void) const ; + + int command (int cmd, void *data, int datasize) ; + + sf_count_t seek (sf_count_t frames, int whence) ; + + void writeSync (void) ; + + int setString (int str_type, const char* str) ; + + const char* getString (int str_type) const ; + + static int formatCheck (int format, int channels, int samplerate) ; + + sf_count_t read (short *ptr, sf_count_t items) ; + sf_count_t read (int *ptr, sf_count_t items) ; + sf_count_t read (float *ptr, sf_count_t items) ; + sf_count_t read (double *ptr, sf_count_t items) ; + + sf_count_t write (const short *ptr, sf_count_t items) ; + sf_count_t write (const int *ptr, sf_count_t items) ; + sf_count_t write (const float *ptr, sf_count_t items) ; + sf_count_t write (const double *ptr, sf_count_t items) ; + + sf_count_t readf (short *ptr, sf_count_t frames) ; + sf_count_t readf (int *ptr, sf_count_t frames) ; + sf_count_t readf (float *ptr, sf_count_t frames) ; + sf_count_t readf (double *ptr, sf_count_t frames) ; + + sf_count_t writef (const short *ptr, sf_count_t frames) ; + sf_count_t writef (const int *ptr, sf_count_t frames) ; + sf_count_t writef (const float *ptr, sf_count_t frames) ; + sf_count_t writef (const double *ptr, sf_count_t frames) ; + + sf_count_t readRaw (void *ptr, sf_count_t bytes) ; + sf_count_t writeRaw (const void *ptr, sf_count_t bytes) ; + + /**< Raw access to the handle. SndfileHandle keeps ownership. */ + SNDFILE * rawHandle (void) ; + + /**< Take ownership of handle, iff reference count is 1. */ + SNDFILE * takeOwnership (void) ; +} ; + +/*============================================================================== +** Nothing but implementation below. +*/ + +inline +SndfileHandle::SNDFILE_ref::SNDFILE_ref (void) +: ref (1) +{} + +inline +SndfileHandle::SNDFILE_ref::~SNDFILE_ref (void) +{ if (sf != NULL) sf_close (sf) ; } + +inline +SndfileHandle::SndfileHandle (const char *path, int mode, int fmt, int chans, int srate) +: p (NULL) +{ + p = new (std::nothrow) SNDFILE_ref () ; + + if (p != NULL) + { p->ref = 1 ; + + p->sfinfo.frames = 0 ; + p->sfinfo.channels = chans ; + p->sfinfo.format = fmt ; + p->sfinfo.samplerate = srate ; + p->sfinfo.sections = 0 ; + p->sfinfo.seekable = 0 ; + + p->sf = sf_open (path, mode, &p->sfinfo) ; + } ; + + return ; +} /* SndfileHandle const char * constructor */ + +inline +SndfileHandle::SndfileHandle (std::string const & path, int mode, int fmt, int chans, int srate) +: p (NULL) +{ + p = new (std::nothrow) SNDFILE_ref () ; + + if (p != NULL) + { p->ref = 1 ; + + p->sfinfo.frames = 0 ; + p->sfinfo.channels = chans ; + p->sfinfo.format = fmt ; + p->sfinfo.samplerate = srate ; + p->sfinfo.sections = 0 ; + p->sfinfo.seekable = 0 ; + + p->sf = sf_open (path.c_str (), mode, &p->sfinfo) ; + } ; + + return ; +} /* SndfileHandle std::string constructor */ + +inline +SndfileHandle::SndfileHandle (int fd, bool close_desc, int mode, int fmt, int chans, int srate) +: p (NULL) +{ + if (fd < 0) + return ; + + p = new (std::nothrow) SNDFILE_ref () ; + + if (p != NULL) + { p->ref = 1 ; + + p->sfinfo.frames = 0 ; + p->sfinfo.channels = chans ; + p->sfinfo.format = fmt ; + p->sfinfo.samplerate = srate ; + p->sfinfo.sections = 0 ; + p->sfinfo.seekable = 0 ; + + p->sf = sf_open_fd (fd, mode, &p->sfinfo, close_desc) ; + } ; + + return ; +} /* SndfileHandle fd constructor */ + +inline +SndfileHandle::~SndfileHandle (void) +{ if (p != NULL && --p->ref == 0) + delete p ; +} /* SndfileHandle destructor */ + + +inline +SndfileHandle::SndfileHandle (const SndfileHandle &orig) +: p (orig.p) +{ if (p != NULL) + ++p->ref ; +} /* SndfileHandle copy constructor */ + +inline SndfileHandle & +SndfileHandle::operator = (const SndfileHandle &rhs) +{ + if (&rhs == this) + return *this ; + if (p != NULL && --p->ref == 0) + delete p ; + + p = rhs.p ; + if (p != NULL) + ++p->ref ; + + return *this ; +} /* SndfileHandle assignment operator */ + +inline int +SndfileHandle::error (void) const +{ return sf_error (p->sf) ; } + +inline const char * +SndfileHandle::strError (void) const +{ return sf_strerror (p->sf) ; } + +inline int +SndfileHandle::command (int cmd, void *data, int datasize) +{ return sf_command (p->sf, cmd, data, datasize) ; } + +inline sf_count_t +SndfileHandle::seek (sf_count_t frame_count, int whence) +{ return sf_seek (p->sf, frame_count, whence) ; } + +inline void +SndfileHandle::writeSync (void) +{ sf_write_sync (p->sf) ; } + +inline int +SndfileHandle::setString (int str_type, const char* str) +{ return sf_set_string (p->sf, str_type, str) ; } + +inline const char* +SndfileHandle::getString (int str_type) const +{ return sf_get_string (p->sf, str_type) ; } + +inline int +SndfileHandle::formatCheck (int fmt, int chans, int srate) +{ + SF_INFO sfinfo ; + + sfinfo.frames = 0 ; + sfinfo.channels = chans ; + sfinfo.format = fmt ; + sfinfo.samplerate = srate ; + sfinfo.sections = 0 ; + sfinfo.seekable = 0 ; + + return sf_format_check (&sfinfo) ; +} + +/*---------------------------------------------------------------------*/ + +inline sf_count_t +SndfileHandle::read (short *ptr, sf_count_t items) +{ return sf_read_short (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::read (int *ptr, sf_count_t items) +{ return sf_read_int (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::read (float *ptr, sf_count_t items) +{ return sf_read_float (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::read (double *ptr, sf_count_t items) +{ return sf_read_double (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::write (const short *ptr, sf_count_t items) +{ return sf_write_short (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::write (const int *ptr, sf_count_t items) +{ return sf_write_int (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::write (const float *ptr, sf_count_t items) +{ return sf_write_float (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::write (const double *ptr, sf_count_t items) +{ return sf_write_double (p->sf, ptr, items) ; } + +inline sf_count_t +SndfileHandle::readf (short *ptr, sf_count_t frame_count) +{ return sf_readf_short (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::readf (int *ptr, sf_count_t frame_count) +{ return sf_readf_int (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::readf (float *ptr, sf_count_t frame_count) +{ return sf_readf_float (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::readf (double *ptr, sf_count_t frame_count) +{ return sf_readf_double (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::writef (const short *ptr, sf_count_t frame_count) +{ return sf_writef_short (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::writef (const int *ptr, sf_count_t frame_count) +{ return sf_writef_int (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::writef (const float *ptr, sf_count_t frame_count) +{ return sf_writef_float (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::writef (const double *ptr, sf_count_t frame_count) +{ return sf_writef_double (p->sf, ptr, frame_count) ; } + +inline sf_count_t +SndfileHandle::readRaw (void *ptr, sf_count_t bytes) +{ return sf_read_raw (p->sf, ptr, bytes) ; } + +inline sf_count_t +SndfileHandle::writeRaw (const void *ptr, sf_count_t bytes) +{ return sf_write_raw (p->sf, ptr, bytes) ; } + +inline SNDFILE * +SndfileHandle::rawHandle (void) +{ return (p ? p->sf : NULL) ; } + +inline SNDFILE * +SndfileHandle::takeOwnership (void) +{ + if (p == NULL || (p->ref != 1)) + return NULL ; + + SNDFILE * sf = p->sf ; + p->sf = NULL ; + delete p ; + p = NULL ; + return sf ; +} + +#ifdef ENABLE_SNDFILE_WINDOWS_PROTOTYPES + +inline +SndfileHandle::SndfileHandle (LPCWSTR wpath, int mode, int fmt, int chans, int srate) +: p (NULL) +{ + p = new (std::nothrow) SNDFILE_ref () ; + + if (p != NULL) + { p->ref = 1 ; + + p->sfinfo.frames = 0 ; + p->sfinfo.channels = chans ; + p->sfinfo.format = fmt ; + p->sfinfo.samplerate = srate ; + p->sfinfo.sections = 0 ; + p->sfinfo.seekable = 0 ; + + p->sf = sf_wchar_open (wpath, mode, &p->sfinfo) ; + } ; + + return ; +} /* SndfileHandle const wchar_t * constructor */ + +#endif + +#endif /* SNDFILE_HH */ + diff --git a/src/strings.c b/src/strings.c new file mode 100644 index 0000000..ce42863 --- /dev/null +++ b/src/strings.c @@ -0,0 +1,214 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "common.h" + +#define STRINGS_DEBUG 0 +#if STRINGS_DEBUG +static void hexdump (void *data, int len) ; +#endif + +int +psf_store_string (SF_PRIVATE *psf, int str_type, const char *str) +{ char new_str [128] ; + size_t len_remaining, str_len ; + int k, str_flags ; + + if (str == NULL) + return SFE_STR_BAD_STRING ; + + str_len = strlen (str) ; + + /* A few extra checks for write mode. */ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((psf->str_flags & SF_STR_ALLOW_START) == 0) + return SFE_STR_NO_SUPPORT ; + if (psf->have_written && (psf->str_flags & SF_STR_ALLOW_END) == 0) + return SFE_STR_NO_SUPPORT ; + /* Only allow zero length strings for software. */ + if (str_type != SF_STR_SOFTWARE && str_len == 0) + return SFE_STR_BAD_STRING ; + } ; + + /* Find the next free slot in table. */ + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + { /* If we find a matching entry clear it. */ + if (psf->strings [k].type == str_type) + psf->strings [k].type = -1 ; + + if (psf->strings [k].type == 0) + break ; + } ; + + /* Determine flags */ + str_flags = SF_STR_LOCATE_START ; + if (psf->file.mode == SFM_RDWR || psf->have_written) + { if ((psf->str_flags & SF_STR_ALLOW_END) == 0) + return SFE_STR_NO_ADD_END ; + str_flags = SF_STR_LOCATE_END ; + } ; + + /* More sanity checking. */ + if (k >= SF_MAX_STRINGS) + return SFE_STR_MAX_COUNT ; + + if (k == 0 && psf->str_end != NULL) + { psf_log_printf (psf, "SFE_STR_WEIRD : k == 0 && psf->str_end != NULL\n") ; + return SFE_STR_WEIRD ; + } ; + + if (k != 0 && psf->str_end == NULL) + { psf_log_printf (psf, "SFE_STR_WEIRD : k != 0 && psf->str_end == NULL\n") ; + return SFE_STR_WEIRD ; + } ; + + /* Special case for the first string. */ + if (k == 0) + psf->str_end = psf->str_storage ; + + switch (str_type) + { case SF_STR_SOFTWARE : + /* In write mode, want to append libsndfile-version to string. */ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (strstr (str, PACKAGE) == NULL) + { /* + ** If the supplied string does not already contain a + ** libsndfile-X.Y.Z component, then add it. + */ + if (strlen (str) == 0) + snprintf (new_str, sizeof (new_str), "%s-%s", PACKAGE, VERSION) ; + else + snprintf (new_str, sizeof (new_str), "%s (%s-%s)", str, PACKAGE, VERSION) ; + } + else + snprintf (new_str, sizeof (new_str), "%s", str) ; + + str = new_str ; + } ; + break ; + + case SF_STR_TITLE : + case SF_STR_COPYRIGHT : + case SF_STR_ARTIST : + case SF_STR_COMMENT : + case SF_STR_DATE : + case SF_STR_ALBUM : + case SF_STR_LICENSE : + case SF_STR_TRACKNUMBER : + case SF_STR_GENRE : + break ; + + default : + psf_log_printf (psf, "%s : SFE_STR_BAD_TYPE\n", __func__) ; + return SFE_STR_BAD_TYPE ; + } ; + + str_len = strlen (str) ; + + len_remaining = SIGNED_SIZEOF (psf->str_storage) - (psf->str_end - psf->str_storage) ; + + if (len_remaining < str_len + 2) + return SFE_STR_MAX_DATA ; + + psf->strings [k].type = str_type ; + psf->strings [k].str = psf->str_end ; + psf->strings [k].flags = str_flags ; + + memcpy (psf->str_end, str, str_len + 1) ; + /* Plus one to catch string terminator. */ + psf->str_end += str_len + 1 ; + + psf->str_flags |= str_flags ; + +#if STRINGS_DEBUG + psf_log_printf (psf, "str_storage : %X\n", (int) psf->str_storage) ; + psf_log_printf (psf, "str_end : %X\n", (int) psf->str_end) ; + psf_log_printf (psf, "sizeof (str_storage) : %d\n", SIGNED_SIZEOF (psf->str_storage)) ; + psf_log_printf (psf, "used : %d\n", (int ) (psf->str_end - psf->str_storage)) ; + psf_log_printf (psf, "remaining : %d\n", SIGNED_SIZEOF (psf->str_storage) - (psf->str_end - psf->str_storage)) ; + + hexdump (psf->str_storage, 300) ; +#endif + + return 0 ; +} /* psf_store_string */ + +int +psf_set_string (SF_PRIVATE *psf, int str_type, const char *str) +{ if (psf->file.mode == SFM_READ) + return SFE_STR_NOT_WRITE ; + + return psf_store_string (psf, str_type, str) ; +} /* psf_set_string */ + +const char* +psf_get_string (SF_PRIVATE *psf, int str_type) +{ int k ; + + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + if (str_type == psf->strings [k].type) + return psf->strings [k].str ; + + return NULL ; +} /* psf_get_string */ + +int +psf_location_string_count (const SF_PRIVATE * psf, int location) +{ int k, count = 0 ; + + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + if (psf->strings [k].type > 0 && psf->strings [k].flags & location) + count ++ ; + + return count ; +} /* psf_location_string_count */ + +/*============================================================================== +*/ + +#if STRINGS_DEBUG + +#include <ctype.h> +static void +hexdump (void *data, int len) +{ unsigned char *ptr ; + int k ; + + ptr = data ; + + puts ("---------------------------------------------------------") ; + while (len >= 16) + { for (k = 0 ; k < 16 ; k++) + printf ("%02X ", ptr [k] & 0xFF) ; + printf (" ") ; + for (k = 0 ; k < 16 ; k++) + printf ("%c", psf_isprint (ptr [k]) ? ptr [k] : '.') ; + puts ("") ; + ptr += 16 ; + len -= 16 ; + } ; +} /* hexdump */ + +#endif diff --git a/src/svx.c b/src/svx.c new file mode 100644 index 0000000..b611f76 --- /dev/null +++ b/src/svx.c @@ -0,0 +1,416 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <stdarg.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + + +/*------------------------------------------------------------------------------ + * Macros to handle big/little endian issues. +*/ + +#define FORM_MARKER (MAKE_MARKER ('F', 'O', 'R', 'M')) +#define SVX8_MARKER (MAKE_MARKER ('8', 'S', 'V', 'X')) +#define SV16_MARKER (MAKE_MARKER ('1', '6', 'S', 'V')) +#define VHDR_MARKER (MAKE_MARKER ('V', 'H', 'D', 'R')) +#define BODY_MARKER (MAKE_MARKER ('B', 'O', 'D', 'Y')) + +#define ATAK_MARKER (MAKE_MARKER ('A', 'T', 'A', 'K')) +#define RLSE_MARKER (MAKE_MARKER ('R', 'L', 'S', 'E')) + +#define c_MARKER (MAKE_MARKER ('(', 'c', ')', ' ')) +#define NAME_MARKER (MAKE_MARKER ('N', 'A', 'M', 'E')) +#define AUTH_MARKER (MAKE_MARKER ('A', 'U', 'T', 'H')) +#define ANNO_MARKER (MAKE_MARKER ('A', 'N', 'N', 'O')) +#define CHAN_MARKER (MAKE_MARKER ('C', 'H', 'A', 'N')) + +/*------------------------------------------------------------------------------ + * Typedefs for file chunks. +*/ + +typedef struct +{ unsigned int oneShotHiSamples, repeatHiSamples, samplesPerHiCycle ; + unsigned short samplesPerSec ; + unsigned char octave, compression ; + unsigned int volume ; +} VHDR_CHUNK ; + +enum { + HAVE_FORM = 0x01, + + HAVE_SVX = 0x02, + HAVE_VHDR = 0x04, + HAVE_BODY = 0x08 +} ; + +/*------------------------------------------------------------------------------ + * Private static functions. +*/ + +static int svx_close (SF_PRIVATE *psf) ; +static int svx_write_header (SF_PRIVATE *psf, int calc_length) ; +static int svx_read_header (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +svx_open (SF_PRIVATE *psf) +{ int error ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = svx_read_header (psf))) + return error ; + + psf->endian = SF_ENDIAN_BIG ; /* All SVX files are big endian. */ + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + if (psf->blockwidth) + psf->sf.frames = psf->datalength / psf->blockwidth ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_SVX) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN (psf->sf.format) ; + + if (psf->endian == SF_ENDIAN_LITTLE || (CPU_IS_LITTLE_ENDIAN && psf->endian == SF_ENDIAN_CPU)) + return SFE_BAD_ENDIAN ; + + psf->endian = SF_ENDIAN_BIG ; /* All SVX files are big endian. */ + + error = svx_write_header (psf, SF_FALSE) ; + if (error) + return error ; + + psf->write_header = svx_write_header ; + } ; + + psf->container_close = svx_close ; + + if ((error = pcm_init (psf))) + return error ; + + return 0 ; +} /* svx_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +svx_read_header (SF_PRIVATE *psf) +{ VHDR_CHUNK vhdr ; + unsigned int FORMsize, vhdrsize, dword, marker ; + int filetype = 0, parsestage = 0, done = 0 ; + int bytecount = 0, channels ; + + if (psf->filelength > SF_PLATFORM_S64 (0xffffffff)) + psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ; + + memset (&vhdr, 0, sizeof (vhdr)) ; + psf_binheader_readf (psf, "p", 0) ; + + /* Set default number of channels. Modify later if necessary */ + psf->sf.channels = 1 ; + + psf->sf.format = SF_FORMAT_SVX ; + + while (! done) + { psf_binheader_readf (psf, "m", &marker) ; + switch (marker) + { case FORM_MARKER : + if (parsestage) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &FORMsize) ; + + if (FORMsize != psf->filelength - 2 * sizeof (dword)) + { dword = psf->filelength - 2 * sizeof (dword) ; + psf_log_printf (psf, "FORM : %d (should be %d)\n", FORMsize, dword) ; + FORMsize = dword ; + } + else + psf_log_printf (psf, "FORM : %d\n", FORMsize) ; + parsestage |= HAVE_FORM ; + break ; + + case SVX8_MARKER : + case SV16_MARKER : + if (! (parsestage & HAVE_FORM)) + return SFE_SVX_NO_FORM ; + filetype = marker ; + psf_log_printf (psf, " %M\n", marker) ; + parsestage |= HAVE_SVX ; + break ; + + case VHDR_MARKER : + if (! (parsestage & (HAVE_FORM | HAVE_SVX))) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &vhdrsize) ; + + psf_log_printf (psf, " VHDR : %d\n", vhdrsize) ; + + psf_binheader_readf (psf, "E4442114", &(vhdr.oneShotHiSamples), &(vhdr.repeatHiSamples), + &(vhdr.samplesPerHiCycle), &(vhdr.samplesPerSec), &(vhdr.octave), &(vhdr.compression), + &(vhdr.volume)) ; + + psf_log_printf (psf, " OneShotHiSamples : %d\n", vhdr.oneShotHiSamples) ; + psf_log_printf (psf, " RepeatHiSamples : %d\n", vhdr.repeatHiSamples) ; + psf_log_printf (psf, " samplesPerHiCycle : %d\n", vhdr.samplesPerHiCycle) ; + psf_log_printf (psf, " Sample Rate : %d\n", vhdr.samplesPerSec) ; + psf_log_printf (psf, " Octave : %d\n", vhdr.octave) ; + + psf_log_printf (psf, " Compression : %d => ", vhdr.compression) ; + + switch (vhdr.compression) + { case 0 : psf_log_printf (psf, "None.\n") ; + break ; + case 1 : psf_log_printf (psf, "Fibonacci delta\n") ; + break ; + case 2 : psf_log_printf (psf, "Exponential delta\n") ; + break ; + } ; + + psf_log_printf (psf, " Volume : %d\n", vhdr.volume) ; + + psf->sf.samplerate = vhdr.samplesPerSec ; + + if (filetype == SVX8_MARKER) + { psf->sf.format |= SF_FORMAT_PCM_S8 ; + psf->bytewidth = 1 ; + } + else if (filetype == SV16_MARKER) + { psf->sf.format |= SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + } ; + + parsestage |= HAVE_VHDR ; + break ; + + case BODY_MARKER : + if (! (parsestage & HAVE_VHDR)) + return SFE_SVX_NO_BODY ; + + psf_binheader_readf (psf, "E4", &dword) ; + psf->datalength = dword ; + + psf->dataoffset = psf_ftell (psf) ; + if (psf->dataoffset < 0) + return SFE_SVX_NO_BODY ; + + if (psf->datalength > psf->filelength - psf->dataoffset) + { psf_log_printf (psf, " BODY : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ; + psf->datalength = psf->filelength - psf->dataoffset ; + } + else + psf_log_printf (psf, " BODY : %D\n", psf->datalength) ; + + parsestage |= HAVE_BODY ; + + if (! psf->sf.seekable) + break ; + + psf_fseek (psf, psf->datalength, SEEK_CUR) ; + break ; + + case NAME_MARKER : + if (! (parsestage & HAVE_SVX)) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &dword) ; + + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + if (strlen (psf->file.name.c) != dword) + { if (dword > sizeof (psf->file.name.c) - 1) + return SFE_SVX_BAD_NAME_LENGTH ; + + psf_binheader_readf (psf, "b", psf->file.name.c, dword) ; + psf->file.name.c [dword] = 0 ; + } + else + psf_binheader_readf (psf, "j", dword) ; + break ; + + case ANNO_MARKER : + if (! (parsestage & HAVE_SVX)) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &dword) ; + + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + psf_binheader_readf (psf, "j", dword) ; + break ; + + case CHAN_MARKER : + if (! (parsestage & HAVE_SVX)) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &dword) ; + + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + bytecount += psf_binheader_readf (psf, "E4", &channels) ; + + if (channels == 2 || channels == 4) + psf_log_printf (psf, " Channels : %d => mono\n", channels) ; + else if (channels == 6) + { psf->sf.channels = 2 ; + psf_log_printf (psf, " Channels : %d => stereo\n", channels) ; + } + else + psf_log_printf (psf, " Channels : %d *** assuming mono\n", channels) ; + + psf_binheader_readf (psf, "j", dword - bytecount) ; + break ; + + + case AUTH_MARKER : + case c_MARKER : + if (! (parsestage & HAVE_SVX)) + return SFE_SVX_NO_FORM ; + + psf_binheader_readf (psf, "E4", &dword) ; + + psf_log_printf (psf, " %M : %d\n", marker, dword) ; + + psf_binheader_readf (psf, "j", dword) ; + break ; + + default : + if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF) + && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF)) + { psf_binheader_readf (psf, "E4", &dword) ; + + psf_log_printf (psf, "%M : %d (unknown marker)\n", marker, dword) ; + + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + if ((dword = psf_ftell (psf)) & 0x03) + { psf_log_printf (psf, " Unknown chunk marker at position %d. Resynching.\n", dword - 4) ; + + psf_binheader_readf (psf, "j", -3) ; + break ; + } ; + psf_log_printf (psf, "*** Unknown chunk marker : %X. Exiting parser.\n", marker) ; + done = 1 ; + } ; /* switch (marker) */ + + if (! psf->sf.seekable && (parsestage & HAVE_BODY)) + break ; + + if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (dword)) + break ; + } ; /* while (1) */ + + if (vhdr.compression) + return SFE_SVX_BAD_COMP ; + + if (psf->dataoffset <= 0) + return SFE_SVX_NO_DATA ; + + return 0 ; +} /* svx_read_header */ + +static int +svx_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + svx_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* svx_close */ + +static int +svx_write_header (SF_PRIVATE *psf, int calc_length) +{ static char annotation [] = "libsndfile by Erik de Castro Lopo\0\0\0" ; + sf_count_t current ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* FORM marker and FORM size. */ + psf_binheader_writef (psf, "Etm8", FORM_MARKER, (psf->filelength < 8) ? + psf->filelength * 0 : psf->filelength - 8) ; + + psf_binheader_writef (psf, "m", (psf->bytewidth == 1) ? SVX8_MARKER : SV16_MARKER) ; + + /* VHDR chunk. */ + psf_binheader_writef (psf, "Em4", VHDR_MARKER, sizeof (VHDR_CHUNK)) ; + /* VHDR : oneShotHiSamples, repeatHiSamples, samplesPerHiCycle */ + psf_binheader_writef (psf, "E444", psf->sf.frames, 0, 0) ; + /* VHDR : samplesPerSec, octave, compression */ + psf_binheader_writef (psf, "E211", psf->sf.samplerate, 1, 0) ; + /* VHDR : volume */ + psf_binheader_writef (psf, "E4", (psf->bytewidth == 1) ? 0xFF : 0xFFFF) ; + + if (psf->sf.channels == 2) + psf_binheader_writef (psf, "Em44", CHAN_MARKER, 4, 6) ; + + /* Filename and annotation strings. */ + psf_binheader_writef (psf, "Emsms", NAME_MARKER, psf->file.name.c, ANNO_MARKER, annotation) ; + + /* BODY marker and size. */ + psf_binheader_writef (psf, "Etm8", BODY_MARKER, (psf->datalength < 0) ? + psf->datalength * 0 : psf->datalength) ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* svx_write_header */ + diff --git a/src/test_audio_detect.c b/src/test_audio_detect.c new file mode 100644 index 0000000..9706249 --- /dev/null +++ b/src/test_audio_detect.c @@ -0,0 +1,111 @@ +/* +** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include <string.h> +#include <errno.h> + +#include "common.h" +#include "sfendian.h" + +#include "test_main.h" + +static unsigned char float_le_mono [] = +{ 0x36, 0x86, 0x21, 0x44, 0xB5, 0xB4, 0x49, 0x44, 0xA2, 0xC0, 0x71, 0x44, 0x7B, 0xD1, 0x8C, 0x44, + 0x54, 0xAA, 0xA0, 0x44, 0x60, 0x67, 0xB4, 0x44, 0x22, 0x05, 0xC8, 0x44, 0x29, 0x80, 0xDB, 0x44, + 0x04, 0xD5, 0xEE, 0x44, 0x27, 0x00, 0x01, 0x45, 0x50, 0x7F, 0x0A, 0x45, 0x53, 0xE6, 0x13, 0x45, + 0x85, 0x33, 0x1D, 0x45, 0x43, 0x65, 0x26, 0x45, 0xEC, 0x79, 0x2F, 0x45, 0xE3, 0x6F, 0x38, 0x45, + 0x98, 0x45, 0x41, 0x45, 0x77, 0xF9, 0x49, 0x45, 0xF6, 0x89, 0x52, 0x45, 0x8F, 0xF5, 0x5A, 0x45, + 0xC9, 0x3A, 0x63, 0x45, 0x28, 0x58, 0x6B, 0x45, 0x3C, 0x4C, 0x73, 0x45, 0x9F, 0x15, 0x7B, 0x45, + 0x75, 0x59, 0x81, 0x45, 0x64, 0x11, 0x85, 0x45, 0xF1, 0xB1, 0x88, 0x45, 0x78, 0x3A, 0x8C, 0x45, + 0x58, 0xAA, 0x8F, 0x45, 0xF2, 0x00, 0x93, 0x45, 0xB2, 0x3D, 0x96, 0x45, 0x01, 0x60, 0x99, 0x45, + 0x50, 0x67, 0x9C, 0x45, 0x15, 0x53, 0x9F, 0x45, 0xCC, 0x22, 0xA2, 0x45, 0xF0, 0xD5, 0xA4, 0x45, + 0x07, 0x6C, 0xA7, 0x45, 0x9C, 0xE4, 0xA9, 0x45, 0x3D, 0x3F, 0xAC, 0x45, 0x7A, 0x7B, 0xAE, 0x45, + 0xF2, 0x98, 0xB0, 0x45, 0x3C, 0x97, 0xB2, 0x45, 0x02, 0x76, 0xB4, 0x45, 0xEC, 0x34, 0xB6, 0x45, + 0xA8, 0xD3, 0xB7, 0x45, 0xEB, 0x51, 0xB9, 0x45, 0x6F, 0xAF, 0xBA, 0x45, 0xF5, 0xEB, 0xBB, 0x45, + 0x41, 0x07, 0xBD, 0x45, 0x21, 0x01, 0xBE, 0x45, 0x64, 0xD9, 0xBE, 0x45, 0xE3, 0x8F, 0xBF, 0x45, + 0x7E, 0x24, 0xC0, 0x45, 0x15, 0x97, 0xC0, 0x45, 0x92, 0xE7, 0xC0, 0x45, 0xE8, 0x15, 0xC1, 0x45, + 0x7E, 0x24, 0xC0, 0x45, 0x15, 0x97, 0xC0, 0x45, 0x92, 0xE7, 0xC0, 0x45, 0xE8, 0x15, 0xC1, 0x45, + 0x7E, 0x24, 0xC0, 0x45, 0x15, 0x97, 0xC0, 0x45, 0x92, 0xE7, 0xC0, 0x45, 0xE8, 0x15, 0xC1, 0x45, +} ; + +static unsigned char int24_32_le_stereo [] = +{ + 0x00, 0xE7, 0xFB, 0xFF, 0x00, 0x7C, 0xFD, 0xFF, 0x00, 0xA2, 0xFC, 0xFF, 0x00, 0x2B, 0xFC, 0xFF, + 0x00, 0xF3, 0xFD, 0xFF, 0x00, 0x19, 0xFB, 0xFF, 0x00, 0xA5, 0xFE, 0xFF, 0x00, 0x8D, 0xFA, 0xFF, + 0x00, 0x91, 0xFF, 0xFF, 0x00, 0xB5, 0xFA, 0xFF, 0x00, 0x91, 0x00, 0x00, 0x00, 0x5E, 0xFB, 0xFF, + 0x00, 0xD9, 0x01, 0x00, 0x00, 0x82, 0xFB, 0xFF, 0x00, 0xDF, 0x03, 0x00, 0x00, 0x44, 0xFC, 0xFF, + 0x00, 0x1C, 0x05, 0x00, 0x00, 0x77, 0xFC, 0xFF, 0x00, 0x8D, 0x06, 0x00, 0x00, 0x4F, 0xFC, 0xFF, + 0x00, 0x84, 0x07, 0x00, 0x00, 0x74, 0xFC, 0xFF, 0x00, 0x98, 0x08, 0x00, 0x00, 0x33, 0xFD, 0xFF, + 0x00, 0xB9, 0x09, 0x00, 0x00, 0x48, 0xFF, 0xFF, 0x00, 0xD1, 0x0A, 0x00, 0x00, 0x10, 0x02, 0x00, + 0x00, 0x28, 0x0C, 0x00, 0x00, 0xA2, 0x05, 0x00, 0x00, 0xA7, 0x0C, 0x00, 0x00, 0x45, 0x08, 0x00, + 0x00, 0x44, 0x0D, 0x00, 0x00, 0x1A, 0x0A, 0x00, 0x00, 0x65, 0x0D, 0x00, 0x00, 0x51, 0x0B, 0x00, + 0x00, 0x8B, 0x0D, 0x00, 0x00, 0x18, 0x0B, 0x00, 0x00, 0x37, 0x0E, 0x00, 0x00, 0x24, 0x0B, 0x00, + 0x00, 0x00, 0x0F, 0x00, 0x00, 0xDD, 0x0A, 0x00, 0x00, 0x83, 0x10, 0x00, 0x00, 0x31, 0x0A, 0x00, + 0x00, 0x07, 0x12, 0x00, 0x00, 0xC0, 0x08, 0x00, 0x00, 0xF7, 0x12, 0x00, 0x00, 0x47, 0x06, 0x00, + 0x00, 0xDD, 0x12, 0x00, 0x00, 0x6A, 0x03, 0x00, 0x00, 0xD5, 0x11, 0x00, 0x00, 0x99, 0x00, 0x00, + 0x00, 0x01, 0x10, 0x00, 0x00, 0xC5, 0xFE, 0xFF, 0x00, 0xF4, 0x0D, 0x00, 0x00, 0x97, 0xFD, 0xFF, + 0x00, 0x62, 0x0B, 0x00, 0x00, 0x75, 0xFC, 0xFF, 0x00, 0xE9, 0x08, 0x00, 0x00, 0xC0, 0xFB, 0xFF, + 0x00, 0x80, 0x06, 0x00, 0x00, 0x3C, 0xFB, 0xFF, 0x00, 0xDA, 0x03, 0x00, 0x00, 0xE4, 0xFA, 0xFF, + 0x00, 0xEB, 0x01, 0x00, 0x00, 0x21, 0xFB, 0xFF, 0x00, 0x20, 0x00, 0x00, 0x00, 0xE7, 0xFB, 0xFF, +} ; + + +void +test_audio_detect (void) +{ + SF_PRIVATE psf ; + AUDIO_DETECT ad ; + int errors = 0 ; + + print_test_name ("Testing audio detect") ; + + memset (&psf, 0, sizeof (psf)) ; + + ad.endianness = SF_ENDIAN_LITTLE ; + ad.channels = 1 ; + if (audio_detect (&psf, &ad, float_le_mono, sizeof (float_le_mono)) != SF_FORMAT_FLOAT) + { puts (" float_le_mono") ; + errors ++ ; + } ; + + ad.endianness = SF_ENDIAN_LITTLE ; + ad.channels = 2 ; + if (audio_detect (&psf, &ad, int24_32_le_stereo, sizeof (int24_32_le_stereo)) != SF_FORMAT_PCM_32) + { if (errors == 0) puts ("\nFailed tests :\n") ; + puts (" int24_32_le_stereo") ; + errors ++ ; + } ; + + if (errors != 0) + { printf ("\n Errors : %d\n\n", errors) ; + exit (1) ; + } ; + + puts ("ok") ; + + return ; +} /* test_audio_detect */ diff --git a/src/test_broadcast_var.c b/src/test_broadcast_var.c new file mode 100644 index 0000000..1f0240f --- /dev/null +++ b/src/test_broadcast_var.c @@ -0,0 +1,87 @@ +/* +** Copyright (C) 2010-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "common.h" + +#include "test_main.h" + +#define BCAST_MAX 512 + +typedef SF_BROADCAST_INFO_VAR (BCAST_MAX) SF_BROADCAST_INFO_512 ; + +static void +fill_coding_history (SF_BROADCAST_INFO_512 * bi) +{ static const char *lines [] = + { "Lorem ipsum dolor sit amet,\nconsectetur adipiscing elit.", + "Donec dignissim erat\nvehicula libero condimentum\ndictum porta augue faucibus.", + "Maecenas nec turpis\nsit amet quam\nfaucibus adipiscing.", + "Mauris aliquam,\nlectus interdum\ntincidunt luctus.", + "\n\n\n\n\n\n\n\n\n\n\n\n", + "In auctor lorem\nvel est euismod\ncondimentum.", + "\n\n\n\n\n\n\n\n\n\n\n\n", + "Ut vitae magna\nid dui placerat vehicula\nin id lectus.", + "\n\n\n\n\n\n\n\n\n\n\n\n", + "Sed lacus leo,\nmolestie et luctus ac,\ntincidunt sit amet nisi.", + "\n\n\n\n\n\n\n\n\n\n\n\n", + "Sed ligula neque,\ngravida semper vulputate laoreet,\ngravida eu tellus.", + "Donec dolor dolor,\nscelerisque in consequat ornare,\ntempor nec nisl." + } ; + int k ; + + bi->coding_history [0] = 0 ; + + for (k = 0 ; strlen (bi->coding_history) < bi->coding_history_size - 1 ; k ++) + append_snprintf (bi->coding_history, bi->coding_history_size, "%s\n", lines [k % ARRAY_LEN (lines)]) ; + + return ; +} /* fill_coding_listory */ + +void +test_broadcast_var (void) +{ SF_PRIVATE sf_private, *psf ; + int k ; + + psf = &sf_private ; + memset (psf, 0, sizeof (sf_private)) ; + + print_test_name ("Testing broadcast_var_set ") ; + + for (k = 64 ; k < BCAST_MAX ; k++) + { + SF_BROADCAST_INFO_512 bi ; + + memset (&bi, 0, sizeof (bi)) ; + + bi.coding_history_size = k ; + fill_coding_history (&bi) ; + bi.coding_history_size -- ; + + broadcast_var_set (psf, (SF_BROADCAST_INFO*) &bi, sizeof (bi)) ; + } ; + + if (psf->broadcast_16k != NULL) + free (psf->broadcast_16k) ; + + puts ("ok") ; +} /* test_broadcast_var */ diff --git a/src/test_conversions.c b/src/test_conversions.c new file mode 100644 index 0000000..34600b0 --- /dev/null +++ b/src/test_conversions.c @@ -0,0 +1,110 @@ +/* +** Copyright (C) 2006-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> +#include <inttypes.h> + +#include "common.h" +#include "test_main.h" + + +/* +** This is a bit rough, but it is the nicest way to do it. +*/ + +#define cmp_test(line,ival,tval,str) \ + if (ival != tval) \ + { printf (str, line, ival, tval) ; \ + exit (1) ; \ + } ; + +static void +conversion_test (char endian) +{ + SF_PRIVATE sf_private, *psf ; + const char * filename = "conversion.bin" ; + int64_t i64 = SF_PLATFORM_S64 (0x0123456789abcdef), t64 = 0 ; + char format_str [16] ; + char test_name [64] ; + char i8 = 12, t8 = 0 ; + short i16 = 0x123, t16 = 0 ; + int i24 = 0x23456, t24 = 0 ; + int i32 = 0x0a0b0c0d, t32 = 0 ; + int bytes ; + + snprintf (format_str, sizeof (format_str), "%c12348", endian) ; + + snprintf (test_name, sizeof (test_name), "Testing %s conversions", endian == 'e' ? "little endian" : "big endian") ; + print_test_name (test_name) ; + + psf = &sf_private ; + memset (psf, 0, sizeof (sf_private)) ; + + psf->file.mode = SFM_WRITE ; + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", filename) ; + + if (psf_fopen (psf) != 0) + { printf ("\n\nError : failed to open file '%s' for write.\n\n", filename) ; + exit (1) ; + } ; + + psf_binheader_writef (psf, format_str, i8, i16, i24, i32, i64) ; + psf_fwrite (psf->header, 1, psf->headindex, psf) ; + psf_fclose (psf) ; + + memset (psf, 0, sizeof (sf_private)) ; + + psf->file.mode = SFM_READ ; + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", filename) ; + + if (psf_fopen (psf) != 0) + { printf ("\n\nError : failed to open file '%s' for read.\n\n", filename) ; + exit (1) ; + } ; + + bytes = psf_binheader_readf (psf, format_str, &t8, &t16, &t24, &t32, &t64) ; + psf_fclose (psf) ; + + if (bytes != 18) + { printf ("\n\nLine %d : read %d bytes.\n\n", __LINE__, bytes) ; + exit (1) ; + } ; + + cmp_test (__LINE__, i8, t8, "\n\nLine %d : 8 bit int failed %d -> %d.\n\n") ; + cmp_test (__LINE__, i16, t16, "\n\nLine %d : 16 bit int failed 0x%x -> 0x%x.\n\n") ; + cmp_test (__LINE__, i24, t24, "\n\nLine %d : 24 bit int failed 0x%x -> 0x%x.\n\n") ; + cmp_test (__LINE__, i32, t32, "\n\nLine %d : 32 bit int failed 0x%x -> 0x%x.\n\n") ; + cmp_test (__LINE__, i64, t64, "\n\nLine %d : 64 bit int failed 0x%" PRIx64 "x -> 0x%" PRIx64 "x.\n\n") ; + + remove (filename) ; + puts ("ok") ; +} /* conversion_test */ + +void +test_conversions (void) +{ + conversion_test ('E') ; + conversion_test ('e') ; +} /* test_conversion */ + diff --git a/src/test_endswap.c b/src/test_endswap.c new file mode 100644 index 0000000..4931650 --- /dev/null +++ b/src/test_endswap.c @@ -0,0 +1,235 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <inttypes.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "common.h" +#include "sfendian.h" + +#include "test_main.h" + +#define FMT_SHORT "0x%04x\n" +#define FMT_INT "0x%08x\n" +#define FMT_INT64 "0x%016" PRIx64 "\n" + +/*============================================================================== +** Test functions. +*/ + + +static void +dump_short_array (const char * name, short * data, int datalen) +{ int k ; + + printf ("%-6s : ", name) ; + for (k = 0 ; k < datalen ; k++) + printf (FMT_SHORT, data [k]) ; + putchar ('\n') ; +} /* dump_short_array */ + +static void +test_endswap_short (void) +{ short orig [4], first [4], second [4] ; + int k ; + + printf (" %-40s : ", "test_endswap_short") ; + fflush (stdout) ; + + for (k = 0 ; k < ARRAY_LEN (orig) ; k++) + orig [k] = 0x3210 + k ; + + endswap_short_copy (first, orig, ARRAY_LEN (first)) ; + endswap_short_copy (second, first, ARRAY_LEN (second)) ; + + if (memcmp (orig, first, sizeof (orig)) == 0) + { printf ("\n\nLine %d : test 1 : these two array should not be the same:\n\n", __LINE__) ; + dump_short_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_short_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + if (memcmp (orig, second, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 2 : these two array should be the same:\n\n", __LINE__) ; + dump_short_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_short_array ("second", second, ARRAY_LEN (second)) ; + exit (1) ; + } ; + + endswap_short_array (first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 3 : these two array should be the same:\n\n", __LINE__) ; + dump_short_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_short_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + endswap_short_copy (first, orig, ARRAY_LEN (first)) ; + endswap_short_copy (first, first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 4 : these two array should be the same:\n\n", __LINE__) ; + dump_short_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_short_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_endswap_short */ + +static void +dump_int_array (const char * name, int * data, int datalen) +{ int k ; + + printf ("%-6s : ", name) ; + for (k = 0 ; k < datalen ; k++) + printf (FMT_INT, data [k]) ; + putchar ('\n') ; +} /* dump_int_array */ + +static void +test_endswap_int (void) +{ int orig [4], first [4], second [4] ; + int k ; + + printf (" %-40s : ", "test_endswap_int") ; + fflush (stdout) ; + + for (k = 0 ; k < ARRAY_LEN (orig) ; k++) + orig [k] = 0x76543210 + k ; + + endswap_int_copy (first, orig, ARRAY_LEN (first)) ; + endswap_int_copy (second, first, ARRAY_LEN (second)) ; + + if (memcmp (orig, first, sizeof (orig)) == 0) + { printf ("\n\nLine %d : test 1 : these two array should not be the same:\n\n", __LINE__) ; + dump_int_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + if (memcmp (orig, second, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 2 : these two array should be the same:\n\n", __LINE__) ; + dump_int_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int_array ("second", second, ARRAY_LEN (second)) ; + exit (1) ; + } ; + + endswap_int_array (first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 3 : these two array should be the same:\n\n", __LINE__) ; + dump_int_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + endswap_int_copy (first, orig, ARRAY_LEN (first)) ; + endswap_int_copy (first, first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 4 : these two array should be the same:\n\n", __LINE__) ; + dump_int_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_endswap_int */ + +static void +dump_int64_t_array (const char * name, int64_t * data, int datalen) +{ int k ; + + printf ("%-6s : ", name) ; + for (k = 0 ; k < datalen ; k++) + printf (FMT_INT64, data [k]) ; + putchar ('\n') ; +} /* dump_int64_t_array */ + +static void +test_endswap_int64_t (void) +{ int64_t orig [4], first [4], second [4] ; + int k ; + + printf (" %-40s : ", "test_endswap_int64_t") ; + fflush (stdout) ; + + for (k = 0 ; k < ARRAY_LEN (orig) ; k++) + orig [k] = 0x0807050540302010LL + k ; + + endswap_int64_t_copy (first, orig, ARRAY_LEN (first)) ; + endswap_int64_t_copy (second, first, ARRAY_LEN (second)) ; + + if (memcmp (orig, first, sizeof (orig)) == 0) + { printf ("\n\nLine %d : test 1 : these two array should not be the same:\n\n", __LINE__) ; + dump_int64_t_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int64_t_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + if (memcmp (orig, second, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 2 : these two array should be the same:\n\n", __LINE__) ; + dump_int64_t_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int64_t_array ("second", second, ARRAY_LEN (second)) ; + exit (1) ; + } ; + + endswap_int64_t_array (first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 3 : these two array should be the same:\n\n", __LINE__) ; + dump_int64_t_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int64_t_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + endswap_int64_t_copy (first, orig, ARRAY_LEN (first)) ; + endswap_int64_t_copy (first, first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 4 : these two array should be the same:\n\n", __LINE__) ; + dump_int64_t_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_int64_t_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_endswap_int64_t */ + + + +void +test_endswap (void) +{ + test_endswap_short () ; + test_endswap_int () ; + test_endswap_int64_t () ; + +} /* test_endswap */ + diff --git a/src/test_endswap.def b/src/test_endswap.def new file mode 100644 index 0000000..c817322 --- /dev/null +++ b/src/test_endswap.def @@ -0,0 +1,20 @@ +autogen definitions test_endswap.tpl; + +int_type = { + name = short ; + value = 0x3210 ; + format = FMT_SHORT ; + } ; + +int_type = { + name = int ; + value = 0x76543210 ; + format = FMT_INT ; + } ; + +int_type = { + name = int64_t ; + value = "0x0807050540302010LL" ; + format = FMT_INT64 ; + } ; + diff --git a/src/test_endswap.tpl b/src/test_endswap.tpl new file mode 100644 index 0000000..ad7cee1 --- /dev/null +++ b/src/test_endswap.tpl @@ -0,0 +1,117 @@ +[+ AutoGen5 template c +] +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <inttypes.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include "common.h" +#include "sfendian.h" + +#include "test_main.h" + +#define FMT_SHORT "0x%04x\n" +#define FMT_INT "0x%08x\n" +#define FMT_INT64 "0x%016" PRIx64 "\n" + +/*============================================================================== +** Test functions. +*/ + +[+ FOR int_type +] +static void +dump_[+ (get "name") +]_array (const char * name, [+ (get "name") +] * data, int datalen) +{ int k ; + + printf ("%-6s : ", name) ; + for (k = 0 ; k < datalen ; k++) + printf ([+ (get "format") +], data [k]) ; + putchar ('\n') ; +} /* dump_[+ (get "name") +]_array */ + +static void +test_endswap_[+ (get "name") +] (void) +{ [+ (get "name") +] orig [4], first [4], second [4] ; + int k ; + + printf (" %-40s : ", "test_endswap_[+ (get "name") +]") ; + fflush (stdout) ; + + for (k = 0 ; k < ARRAY_LEN (orig) ; k++) + orig [k] = [+ (get "value") +] + k ; + + endswap_[+ (get "name") +]_copy (first, orig, ARRAY_LEN (first)) ; + endswap_[+ (get "name") +]_copy (second, first, ARRAY_LEN (second)) ; + + if (memcmp (orig, first, sizeof (orig)) == 0) + { printf ("\n\nLine %d : test 1 : these two array should not be the same:\n\n", __LINE__) ; + dump_[+ (get "name") +]_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_[+ (get "name") +]_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + if (memcmp (orig, second, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 2 : these two array should be the same:\n\n", __LINE__) ; + dump_[+ (get "name") +]_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_[+ (get "name") +]_array ("second", second, ARRAY_LEN (second)) ; + exit (1) ; + } ; + + endswap_[+ (get "name") +]_array (first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 3 : these two array should be the same:\n\n", __LINE__) ; + dump_[+ (get "name") +]_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_[+ (get "name") +]_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + endswap_[+ (get "name") +]_copy (first, orig, ARRAY_LEN (first)) ; + endswap_[+ (get "name") +]_copy (first, first, ARRAY_LEN (first)) ; + + if (memcmp (orig, first, sizeof (orig)) != 0) + { printf ("\n\nLine %d : test 4 : these two array should be the same:\n\n", __LINE__) ; + dump_[+ (get "name") +]_array ("orig", orig, ARRAY_LEN (orig)) ; + dump_[+ (get "name") +]_array ("first", first, ARRAY_LEN (first)) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_endswap_[+ (get "name") +] */ +[+ ENDFOR int_type ++] + + +void +test_endswap (void) +{ +[+ FOR int_type ++] test_endswap_[+ (get "name") +] () ; +[+ ENDFOR int_type ++] +} /* test_endswap */ + diff --git a/src/test_file_io.c b/src/test_file_io.c new file mode 100644 index 0000000..08fcceb --- /dev/null +++ b/src/test_file_io.c @@ -0,0 +1,438 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include <string.h> +#include <errno.h> +#include <inttypes.h> + +#include "common.h" + +#include "test_main.h" + +static void make_data (int *data, int len, int seed) ; + +static void file_open_test (const char *filename) ; +static void file_read_write_test (const char *filename) ; +static void file_truncate_test (const char *filename) ; + +static void test_open_or_die (SF_PRIVATE *psf, int linenum) ; +static void test_close_or_die (SF_PRIVATE *psf, int linenum) ; + +static void test_write_or_die (SF_PRIVATE *psf, void *data, sf_count_t bytes, sf_count_t items, sf_count_t new_position, int linenum) ; +static void test_read_or_die (SF_PRIVATE *psf, void *data, sf_count_t bytes, sf_count_t items, sf_count_t new_position, int linenum) ; +static void test_equal_or_die (int *array1, int *array2, int len, int linenum) ; +static void test_seek_or_die (SF_PRIVATE *psf, sf_count_t offset, int whence, sf_count_t new_position, int linenum) ; + + + +/*============================================================================== +** Actual test functions. +*/ + +static void +file_open_test (const char *filename) +{ SF_PRIVATE sf_data, *psf ; + int error ; + + print_test_name ("Testing file open") ; + + memset (&sf_data, 0, sizeof (sf_data)) ; + psf = &sf_data ; + + /* Ensure that the file doesn't already exist. */ + if (unlink (filename) != 0 && errno != ENOENT) + { printf ("\n\nLine %d: unlink failed (%d) : %s\n\n", __LINE__, errno, strerror (errno)) ; + exit (1) ; + } ; + + psf->file.mode = SFM_READ ; + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", filename) ; + + /* Test that open for read fails if the file doesn't exist. */ + error = psf_fopen (psf) ; + if (error == 0) + { printf ("\n\nLine %d: psf_fopen() should have failed.\n\n", __LINE__) ; + exit (1) ; + } ; + + /* Reset error to zero. */ + psf->error = SFE_NO_ERROR ; + + /* Test file open in write mode. */ + psf->file.mode = SFM_WRITE ; + test_open_or_die (psf, __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + + unlink (psf->file.path.c) ; + + /* Test file open in read/write mode for a non-existant file. */ + psf->file.mode = SFM_RDWR ; + test_open_or_die (psf, __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + + /* Test file open in read/write mode for an existing file. */ + psf->file.mode = SFM_RDWR ; + test_open_or_die (psf, __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + + unlink (psf->file.path.c) ; + puts ("ok") ; +} /* file_open_test */ + +static void +file_read_write_test (const char *filename) +{ static int data_out [512] ; + static int data_in [512] ; + + SF_PRIVATE sf_data, *psf ; + sf_count_t retval ; + + /* + ** Open a new file and write two blocks of data to the file. After each + ** write, test that psf_get_filelen() returns the new length. + */ + + print_test_name ("Testing file write") ; + + memset (&sf_data, 0, sizeof (sf_data)) ; + psf = &sf_data ; + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", filename) ; + + /* Test file open in write mode. */ + psf->file.mode = SFM_WRITE ; + test_open_or_die (psf, __LINE__) ; + + make_data (data_out, ARRAY_LEN (data_out), 1) ; + test_write_or_die (psf, data_out, sizeof (data_out [0]), ARRAY_LEN (data_out), sizeof (data_out), __LINE__) ; + + if ((retval = psf_get_filelen (psf)) != sizeof (data_out)) + { printf ("\n\nLine %d: file length after write is not correct (%" PRId64 " should be %zd).\n\n", __LINE__, retval, sizeof (data_out)) ; + if (retval == 0) + printf ("An fsync() may be necessary before fstat() in psf_get_filelen().\n\n") ; + exit (1) ; + } ; + + make_data (data_out, ARRAY_LEN (data_out), 2) ; + test_write_or_die (psf, data_out, ARRAY_LEN (data_out), sizeof (data_out [0]), 2 * sizeof (data_out), __LINE__) ; + + if ((retval = psf_get_filelen (psf)) != 2 * sizeof (data_out)) + { printf ("\n\nLine %d: file length after write is not correct. (%" PRId64 " should be %zd)\n\n", __LINE__, retval, 2 * sizeof (data_out)) ; + exit (1) ; + } ; + + test_close_or_die (psf, __LINE__) ; + puts ("ok") ; + + /* + ** Now open the file in read mode, check the file length and check + ** that the data is correct. + */ + + print_test_name ("Testing file read") ; + + /* Test file open in write mode. */ + psf->file.mode = SFM_READ ; + test_open_or_die (psf, __LINE__) ; + + make_data (data_out, ARRAY_LEN (data_out), 1) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + make_data (data_out, ARRAY_LEN (data_out), 2) ; + test_read_or_die (psf, data_in, sizeof (data_in [0]), ARRAY_LEN (data_in), 2 * sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + + puts ("ok") ; + + /* + ** Open the file in read/write mode, seek around a bit and then seek to + ** the end of the file and write another block of data (3rd block). Then + ** go back and check that all three blocks are correct. + */ + + print_test_name ("Testing file seek") ; + + /* Test file open in read/write mode. */ + psf->file.mode = SFM_RDWR ; + test_open_or_die (psf, __LINE__) ; + + test_seek_or_die (psf, 0, SEEK_SET, 0, __LINE__) ; + test_seek_or_die (psf, 0, SEEK_END, 2 * SIGNED_SIZEOF (data_out), __LINE__) ; + test_seek_or_die (psf, -1 * SIGNED_SIZEOF (data_out), SEEK_CUR, (sf_count_t) sizeof (data_out), __LINE__) ; + + test_seek_or_die (psf, SIGNED_SIZEOF (data_out), SEEK_CUR, 2 * SIGNED_SIZEOF (data_out), __LINE__) ; + make_data (data_out, ARRAY_LEN (data_out), 3) ; + test_write_or_die (psf, data_out, sizeof (data_out [0]), ARRAY_LEN (data_out), 3 * sizeof (data_out), __LINE__) ; + + test_seek_or_die (psf, 0, SEEK_SET, 0, __LINE__) ; + make_data (data_out, ARRAY_LEN (data_out), 1) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + test_seek_or_die (psf, 2 * SIGNED_SIZEOF (data_out), SEEK_SET, 2 * SIGNED_SIZEOF (data_out), __LINE__) ; + make_data (data_out, ARRAY_LEN (data_out), 3) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), 3 * sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + test_seek_or_die (psf, SIGNED_SIZEOF (data_out), SEEK_SET, SIGNED_SIZEOF (data_out), __LINE__) ; + make_data (data_out, ARRAY_LEN (data_out), 2) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), 2 * sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + puts ("ok") ; + + /* + ** Now test operations with a non-zero psf->fileoffset field. This field + ** sets an artificial file start positions so that a seek to the start of + ** the file will actually be a seek to the value given by psf->fileoffset. + */ + + print_test_name ("Testing file offset") ; + + /* Test file open in read/write mode. */ + psf->file.mode = SFM_RDWR ; + psf->fileoffset = sizeof (data_out [0]) * ARRAY_LEN (data_out) ; + test_open_or_die (psf, __LINE__) ; + + if ((retval = psf_get_filelen (psf)) != 3 * sizeof (data_out)) + { printf ("\n\nLine %d: file length after write is not correct. (%" PRId64 " should be %zd)\n\n", __LINE__, retval, 3 * sizeof (data_out)) ; + exit (1) ; + } ; + + test_seek_or_die (psf, SIGNED_SIZEOF (data_out), SEEK_SET, SIGNED_SIZEOF (data_out), __LINE__) ; + make_data (data_out, ARRAY_LEN (data_out), 5) ; + test_write_or_die (psf, data_out, sizeof (data_out [0]), ARRAY_LEN (data_out), 2 * sizeof (data_out), __LINE__) ; + test_close_or_die (psf, __LINE__) ; + + /* final test with psf->fileoffset == 0. */ + + psf->file.mode = SFM_RDWR ; + psf->fileoffset = 0 ; + test_open_or_die (psf, __LINE__) ; + + if ((retval = psf_get_filelen (psf)) != 3 * sizeof (data_out)) + { printf ("\n\nLine %d: file length after write is not correct. (%" PRId64 " should be %zd)\n\n", __LINE__, retval, 3 * sizeof (data_out)) ; + exit (1) ; + } ; + + make_data (data_out, ARRAY_LEN (data_out), 1) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + make_data (data_out, ARRAY_LEN (data_out), 2) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), 2 * sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + make_data (data_out, ARRAY_LEN (data_out), 5) ; + test_read_or_die (psf, data_in, 1, sizeof (data_in), 3 * sizeof (data_in), __LINE__) ; + test_equal_or_die (data_out, data_in, ARRAY_LEN (data_out), __LINE__) ; + + test_close_or_die (psf, __LINE__) ; + + puts ("ok") ; +} /* file_read_write_test */ + +static void +file_truncate_test (const char *filename) +{ SF_PRIVATE sf_data, *psf ; + unsigned char buffer [256] ; + int k ; + + /* + ** Open a new file and write two blocks of data to the file. After each + ** write, test that psf_get_filelen() returns the new length. + */ + + print_test_name ("Testing file truncate") ; + + memset (&sf_data, 0, sizeof (sf_data)) ; + memset (buffer, 0xEE, sizeof (buffer)) ; + + psf = &sf_data ; + snprintf (psf->file.path.c, sizeof (psf->file.path.c), "%s", filename) ; + + /* + ** Open the file write mode, write 0xEE data and then extend the file + ** using truncate (the extended data should be 0x00). + */ + psf->file.mode = SFM_WRITE ; + test_open_or_die (psf, __LINE__) ; + test_write_or_die (psf, buffer, sizeof (buffer) / 2, 1, sizeof (buffer) / 2, __LINE__) ; + psf_ftruncate (psf, sizeof (buffer)) ; + test_close_or_die (psf, __LINE__) ; + + /* Open the file in read mode and check the data. */ + psf->file.mode = SFM_READ ; + test_open_or_die (psf, __LINE__) ; + test_read_or_die (psf, buffer, sizeof (buffer), 1, sizeof (buffer), __LINE__) ; + test_close_or_die (psf, __LINE__) ; + + for (k = 0 ; k < SIGNED_SIZEOF (buffer) / 2 ; k++) + if (buffer [k] != 0xEE) + { printf ("\n\nLine %d : buffer [%d] = %d (should be 0xEE)\n\n", __LINE__, k, buffer [k]) ; + exit (1) ; + } ; + + for (k = SIGNED_SIZEOF (buffer) / 2 ; k < SIGNED_SIZEOF (buffer) ; k++) + if (buffer [k] != 0) + { printf ("\n\nLine %d : buffer [%d] = %d (should be 0)\n\n", __LINE__, k, buffer [k]) ; + exit (1) ; + } ; + + /* Open the file in read/write and shorten the file using truncate. */ + psf->file.mode = SFM_RDWR ; + test_open_or_die (psf, __LINE__) ; + psf_ftruncate (psf, sizeof (buffer) / 4) ; + test_close_or_die (psf, __LINE__) ; + + /* Check the file length. */ + psf->file.mode = SFM_READ ; + test_open_or_die (psf, __LINE__) ; + test_seek_or_die (psf, 0, SEEK_END, SIGNED_SIZEOF (buffer) / 4, __LINE__) ; + test_close_or_die (psf, __LINE__) ; + + puts ("ok") ; +} /* file_truncate_test */ + +/*============================================================================== +** Testing helper functions. +*/ + +static void +test_open_or_die (SF_PRIVATE *psf, int linenum) +{ int error ; + + /* Test that open for read fails if the file doesn't exist. */ + error = psf_fopen (psf) ; + if (error) + { printf ("\n\nLine %d: psf_fopen() failed : %s\n\n", linenum, strerror (errno)) ; + exit (1) ; + } ; + +} /* test_open_or_die */ + +static void +test_close_or_die (SF_PRIVATE *psf, int linenum) +{ + psf_fclose (psf) ; + if (psf_file_valid (psf)) + { printf ("\n\nLine %d: psf->file.filedes should not be valid.\n\n", linenum) ; + exit (1) ; + } ; + +} /* test_close_or_die */ + +static void +test_write_or_die (SF_PRIVATE *psf, void *data, sf_count_t bytes, sf_count_t items, sf_count_t new_position, int linenum) +{ sf_count_t retval ; + + retval = psf_fwrite (data, bytes, items, psf) ; + if (retval != items) + { printf ("\n\nLine %d: psf_write() returned %" PRId64 " (should be %" PRId64 ")\n\n", linenum, retval, items) ; + exit (1) ; + } ; + + if ((retval = psf_ftell (psf)) != new_position) + { printf ("\n\nLine %d: file length after write is not correct. (%" PRId64 " should be %" PRId64 ")\n\n", linenum, retval, new_position) ; + exit (1) ; + } ; + + return ; +} /* test_write_or_die */ + +static void +test_read_or_die (SF_PRIVATE *psf, void *data, sf_count_t bytes, sf_count_t items, sf_count_t new_position, int linenum) +{ sf_count_t retval ; + + retval = psf_fread (data, bytes, items, psf) ; + if (retval != items) + { printf ("\n\nLine %d: psf_write() returned %" PRId64 " (should be %" PRId64 ")\n\n", linenum, retval, items) ; + exit (1) ; + } ; + + if ((retval = psf_ftell (psf)) != new_position) + { printf ("\n\nLine %d: file length after write is not correct. (%" PRId64 " should be %" PRId64 ")\n\n", linenum, retval, new_position) ; + exit (1) ; + } ; + + return ; +} /* test_write_or_die */ + +static void +test_seek_or_die (SF_PRIVATE *psf, sf_count_t offset, int whence, sf_count_t new_position, int linenum) +{ sf_count_t retval ; + + retval = psf_fseek (psf, offset, whence) ; + + if (retval != new_position) + { printf ("\n\nLine %d: psf_fseek() failed. New position is %" PRId64 " (should be %" PRId64 ").\n\n", + linenum, retval, new_position) ; + exit (1) ; + } ; + +} /* test_seek_or_die */ + +static void +test_equal_or_die (int *array1, int *array2, int len, int linenum) +{ int k ; + + for (k = 0 ; k < len ; k++) + if (array1 [k] != array2 [k]) + printf ("\n\nLine %d: error at index %d (%d != %d).\n\n", + linenum, k, array1 [k], array2 [k]) ; + + return ; +} /* test_equal_or_die */ + +static void +make_data (int *data, int len, int seed) +{ int k ; + + srand (seed * 3333333 + 14756123) ; + + for (k = 0 ; k < len ; k++) + data [k] = rand () ; + +} /* make_data */ + +void +test_file_io (void) +{ const char *filename = "file_io.dat" ; + + file_open_test (filename) ; + file_read_write_test (filename) ; + file_truncate_test (filename) ; + + unlink (filename) ; +} /* main */ + diff --git a/src/test_float.c b/src/test_float.c new file mode 100644 index 0000000..9d0b09d --- /dev/null +++ b/src/test_float.c @@ -0,0 +1,104 @@ +/* +** Copyright (C) 2006-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> +#include <math.h> + +#include "common.h" +#include "test_main.h" + +void +test_float_convert (void) +{ static float data [] = + { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI, + 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10, + 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20, + } ; + + int k ; + + print_test_name (__func__) ; + + for (k = 0 ; k < ARRAY_LEN (data) ; k++) + { unsigned char bytes [4] ; + float test ; + + float32_le_write (data [k], bytes) ; + test = float32_le_read (bytes) ; + + if (fabs (data [k] - test) > 1e-20) + { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test ) ; + exit (1) ; + } ; + + float32_be_write (data [k], bytes) ; + test = float32_be_read (bytes) ; + + if (fabs (data [k] - test) > 1e-20) + { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; + exit (1) ; + } ; + + } ; + + puts ("ok") ; +} /* test_float_convert */ + +void +test_double_convert (void) +{ static double data [] = + { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI, + 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10, + 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20, + } ; + + int k ; + + print_test_name (__func__) ; + + for (k = 0 ; k < ARRAY_LEN (data) ; k++) + { unsigned char bytes [8] ; + double test ; + + double64_le_write (data [k], bytes) ; + test = double64_le_read (bytes) ; + + if (fabs (data [k] - test) > 1e-20) + { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test ) ; + exit (1) ; + } ; + + double64_be_write (data [k], bytes) ; + test = double64_be_read (bytes) ; + + if (fabs (data [k] - test) > 1e-20) + { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ; + exit (1) ; + } ; + + } ; + + puts ("ok") ; +} /* test_double_convert */ + diff --git a/src/test_ima_oki_adpcm.c b/src/test_ima_oki_adpcm.c new file mode 100644 index 0000000..6c937d1 --- /dev/null +++ b/src/test_ima_oki_adpcm.c @@ -0,0 +1,157 @@ +/* +** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (c) 2007 <robs@users.sourceforge.net> +** +** This library is free software; you can redistribute it and/or modify it +** under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2 of the License, or (at +** your option) any later version. +** +** This library is distributed in the hope that it will be useful, but +** WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser +** General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this library. If not, write to the Free Software Foundation, +** Fifth Floor, 51 Franklin Street, Boston, MA 02111-1301, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> + +#include "test_main.h" + +#include "ima_oki_adpcm.c" + +static const unsigned char test_codes [] = +{ 0x08, 0x08, 0x04, 0x7f, 0x72, 0xf7, 0x9f, 0x7c, 0xd7, 0xbc, 0x7a, 0xa7, 0xb8, + 0x4b, 0x0b, 0x38, 0xf6, 0x9d, 0x7a, 0xd7, 0xbc, 0x7a, 0xd7, 0xa8, 0x6c, 0x81, + 0x98, 0xe4, 0x0e, 0x7a, 0xd7, 0x9e, 0x7b, 0xc7, 0xab, 0x7a, 0x85, 0xc0, 0xb3, + 0x8f, 0x58, 0xd7, 0xad, 0x7a, 0xd7, 0xad, 0x7a, 0x87, 0xd0, 0x2b, 0x0e, 0x48, + 0xd7, 0xad, 0x78, 0xf7, 0xbc, 0x7a, 0xb7, 0xa8, 0x4b, 0x88, 0x18, 0xd5, 0x8d, + 0x6a, 0xa4, 0x98, 0x08, 0x00, 0x80, 0x88, +} ; + +static const short test_pcm [] = +{ 32, 0, 32, 0, 32, 320, 880, -336, 2304, 4192, -992, 10128, 5360, -16352, + 30208, 2272, -31872, 14688, -7040, -32432, 14128, -1392, -15488, 22960, + 1232, -1584, 21488, -240, 2576, -15360, 960, -1152, -30032, 10320, 1008, + -30032, 16528, 1008, -30032, 16528, -5200, -30592, 15968, 448, -30592, + 15968, 448, -2368, 30960, 3024, -80, 8384, 704, -1616, -29168, -1232, 1872, + -32768, 13792, -1728, -32768, 13792, 4480, -32192, 14368, -7360, -32752, + 13808, -1712, -21456, 16992, 1472, -1344, 26848, -1088, 2016, -17728, 208, + -2112, -32768, 1376, -1728, -32768, 13792, -1728, -32768, 13792, -1728, + -32768, 13792, -1728, -32768, 13792, -1728, -4544, 32767, -1377, 1727, + 15823, -2113, 207, -27345, 591, -2513, -32768, 13792, -1728, -32768, 13792, + 10688, -31632, 14928, -6800, -32192, 14368, -1152, -20896, 17552, 2032, + -784, 22288, 560, -2256, -4816, 2176, 64, -21120, 9920, 6816, -24224, 16128, + 608, -13488, 9584, 272, -2544, 16, -2304, -192, 1728, -16, 1568, 128, -1184, +} ; + + +static void +test_oki_adpcm (void) +{ + IMA_OKI_ADPCM adpcm ; + unsigned char code ; + int i, j ; + + print_test_name ("Testing ima/oki encoder") ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + for (i = 0 ; i < ARRAY_LEN (test_codes) ; i++) + for (j = 0, code = test_codes [i] ; j < 2 ; j++, code <<= 4) + if (adpcm_decode (&adpcm, code >> 4) != test_pcm [2 * i + j]) + { printf ("\n\nFail at i = %d, j = %d.\n\n", i, j) ; + exit (1) ; + } ; + + puts ("ok") ; + + print_test_name ("Testing ima/oki decoder") ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + for (i = 0 ; i < ARRAY_LEN (test_pcm) - 1 ; i += 2) + { code = adpcm_encode (&adpcm, test_pcm [i]) ; + code = (code << 4) | adpcm_encode (&adpcm, test_pcm [i + 1]) ; + if (code != test_codes [i / 2]) + { printf ("\n\nFail at i = %d, %d should be %d\n\n", i, code, test_codes [i / 2]) ; + exit (1) ; + } ; + } ; + + puts ("ok") ; +} /* test_oki_adpcm */ + +static void +test_oki_adpcm_block (void) +{ + IMA_OKI_ADPCM adpcm ; + int k ; + + if (ARRAY_LEN (adpcm.pcm) < ARRAY_LEN (test_pcm)) + { printf ("\n\nLine %d : ARRAY_LEN (adpcm->pcm) > ARRAY_LEN (test_pcm) (%d > %d).\n\n", __LINE__, ARRAY_LEN (adpcm.pcm), ARRAY_LEN (test_pcm)) ; + exit (1) ; + } ; + + if (ARRAY_LEN (adpcm.codes) < ARRAY_LEN (test_codes)) + { printf ("\n\nLine %d : ARRAY_LEN (adcodes->codes) > ARRAY_LEN (test_codes).n", __LINE__) ; + exit (1) ; + } ; + + print_test_name ("Testing ima/oki block encoder") ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + + memcpy (adpcm.pcm, test_pcm, sizeof (adpcm.pcm [0]) * ARRAY_LEN (test_pcm)) ; + adpcm.pcm_count = ARRAY_LEN (test_pcm) ; + adpcm.code_count = 13 ; + + ima_oki_adpcm_encode_block (&adpcm) ; + + if (adpcm.code_count * 2 != ARRAY_LEN (test_pcm)) + { printf ("\n\nLine %d : %d * 2 != %d\n\n", __LINE__, adpcm.code_count * 2, ARRAY_LEN (test_pcm)) ; + exit (1) ; + } ; + + for (k = 0 ; k < ARRAY_LEN (test_codes) ; k++) + if (adpcm.codes [k] != test_codes [k]) + { printf ("\n\nLine %d : Fail at k = %d, %d should be %d\n\n", __LINE__, k, adpcm.codes [k], test_codes [k]) ; + exit (1) ; + } ; + + puts ("ok") ; + + print_test_name ("Testing ima/oki block decoder") ; + + ima_oki_adpcm_init (&adpcm, IMA_OKI_ADPCM_TYPE_OKI) ; + + memcpy (adpcm.codes, test_codes, sizeof (adpcm.codes [0]) * ARRAY_LEN (test_codes)) ; + adpcm.code_count = ARRAY_LEN (test_codes) ; + adpcm.pcm_count = 13 ; + + ima_oki_adpcm_decode_block (&adpcm) ; + + if (adpcm.pcm_count != 2 * ARRAY_LEN (test_codes)) + { printf ("\n\nLine %d : %d * 2 != %d\n\n", __LINE__, adpcm.pcm_count, 2 * ARRAY_LEN (test_codes)) ; + exit (1) ; + } ; + + for (k = 0 ; k < ARRAY_LEN (test_pcm) ; k++) + if (adpcm.pcm [k] != test_pcm [k]) + { printf ("\n\nLine %d : Fail at i = %d, %d should be %d.\n\n", __LINE__, k, adpcm.pcm [k], test_pcm [k]) ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_oki_adpcm_block */ + +void +test_ima_oki_adpcm (void) +{ + test_oki_adpcm () ; + test_oki_adpcm_block () ; +} /* main */ + diff --git a/src/test_log_printf.c b/src/test_log_printf.c new file mode 100644 index 0000000..de9d45b --- /dev/null +++ b/src/test_log_printf.c @@ -0,0 +1,123 @@ +/* +** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> + +#include "common.h" + +#include "test_main.h" + +#define CMP_0_ARGS(line,err,fmt) \ + { psf->logindex = 0 ; \ + snprintf (buffer, sizeof (buffer), (fmt)) ; \ + psf_log_printf (psf, (fmt)) ; \ + err += compare_strings_or_die (line, fmt, buffer, psf->logbuffer) ; \ + } + +#define CMP_2_ARGS(line,err,fmt,a) \ + { psf->logindex = 0 ; \ + snprintf (buffer, sizeof (buffer), (fmt), (a), (a)) ; \ + psf_log_printf (psf, (fmt), (a), (a)) ; \ + err += compare_strings_or_die (line, fmt, buffer, psf->logbuffer) ; \ + } + +#define CMP_4_ARGS(line,err,fmt,a) \ + { psf->logindex = 0 ; \ + snprintf (buffer, sizeof (buffer), (fmt), (a), (a), (a), (a)) ; \ + psf_log_printf (psf, (fmt), (a), (a), (a), (a)) ; \ + err += compare_strings_or_die (line, fmt, buffer, psf->logbuffer) ; \ + } + +#define CMP_5_ARGS(line,err,fmt,a) \ + { psf->logindex = 0 ; \ + snprintf (buffer, sizeof (buffer), (fmt), (a), (a), (a), (a), (a)) ; \ + psf_log_printf (psf, (fmt), (a), (a), (a), (a), (a)) ; \ + err += compare_strings_or_die (line, fmt, buffer, psf->logbuffer) ; \ + } + +#define CMP_6_ARGS(line,err,fmt,a) \ + { psf->logindex = 0 ; \ + snprintf (buffer, sizeof (buffer), (fmt), (a), (a), (a), (a), (a), (a)) ; \ + psf_log_printf (psf, (fmt), (a), (a), (a), (a), (a), (a)) ; \ + err += compare_strings_or_die (line, fmt, buffer, psf->logbuffer) ; \ + } + +static int +compare_strings_or_die (int linenum, const char *fmt, const char* s1, const char* s2) +{ int errors = 0 ; +/*-puts (s1) ;puts (s2) ;-*/ + + if (strcmp (s1, s2) != 0) + { printf ("\n\nLine %d: string compare mismatch:\n\t", linenum) ; + printf ("\"%s\"\n", fmt) ; + printf ("\t\"%s\"\n\t\"%s\"\n", s1, s2) ; + errors ++ ; + } ; + + return errors ; +} /* compare_strings_or_die */ + +void +test_log_printf (void) +{ static char buffer [2048] ; + SF_PRIVATE sf_private, *psf ; + int k, errors = 0 ; + int int_values [] = { 0, 1, 12, 123, 1234, 123456, -1, -12, -123, -1234, -123456 } ; + + print_test_name ("Testing psf_log_printf") ; + + psf = &sf_private ; + memset (psf, 0, sizeof (sf_private)) ; + + CMP_0_ARGS (__LINE__, errors, " ->%%<- ") ; + + /* Test printing of ints. */ + for (k = 0 ; k < ARRAY_LEN (int_values) ; k++) + CMP_6_ARGS (__LINE__, errors, "int A : %d, % d, %4d, % 4d, %04d, % 04d", int_values [k]) ; + + for (k = 0 ; k < ARRAY_LEN (int_values) ; k++) + CMP_5_ARGS (__LINE__, errors, "int B : %+d, %+4d, %+04d, %-d, %-4d", int_values [k]) ; + + for (k = 0 ; k < ARRAY_LEN (int_values) ; k++) + CMP_2_ARGS (__LINE__, errors, "int C : %- d, %- 4d", int_values [k]) ; + + /* Test printing of unsigned ints. */ + for (k = 0 ; k < ARRAY_LEN (int_values) ; k++) + CMP_4_ARGS (__LINE__, errors, "D : %u, %4u, %04u, %0u", int_values [k]) ; + + /* Test printing of hex ints. */ + for (k = 0 ; k < ARRAY_LEN (int_values) ; k++) + CMP_4_ARGS (__LINE__, errors, "E : %X, %4X, %04X, %0X", int_values [k]) ; + + /* Test printing of strings. */ + CMP_4_ARGS (__LINE__, errors, "B %s, %3s, %8s, %-8s", "str") ; + + if (errors) + { puts ("\nExiting due to errors.\n") ; + exit (1) ; + } ; + + puts ("ok") ; +} /* test_log_printf */ + diff --git a/src/test_main.c b/src/test_main.c new file mode 100644 index 0000000..6692514 --- /dev/null +++ b/src/test_main.c @@ -0,0 +1,48 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> + +#include "test_main.h" + +int +main (void) +{ + test_conversions () ; + test_endswap () ; + test_float_convert () ; + test_double_convert () ; + + test_log_printf () ; + test_file_io () ; + + test_audio_detect () ; + test_ima_oki_adpcm () ; + + test_psf_strlcpy_crlf () ; + test_broadcast_var () ; + + return 0 ; +} /* main */ + diff --git a/src/test_main.h b/src/test_main.h new file mode 100644 index 0000000..53b7311 --- /dev/null +++ b/src/test_main.h @@ -0,0 +1,39 @@ +/* +** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +static inline void +print_test_name (const char * name) +{ printf (" %-40s : ", name) ; + fflush (stdout) ; +} /* print_test_name */ + + + +void test_conversions (void) ; +void test_endswap (void) ; +void test_log_printf (void) ; +void test_file_io (void) ; + +void test_float_convert (void) ; +void test_double_convert (void) ; + +void test_audio_detect (void) ; +void test_ima_oki_adpcm (void) ; + +void test_psf_strlcpy_crlf (void) ; +void test_broadcast_var (void) ; diff --git a/src/test_strncpy_crlf.c b/src/test_strncpy_crlf.c new file mode 100644 index 0000000..1bb1837 --- /dev/null +++ b/src/test_strncpy_crlf.c @@ -0,0 +1,56 @@ +/* +** Copyright (C) 2010-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> + +#include "common.h" + +#include "test_main.h" + +void +test_psf_strlcpy_crlf (void) +{ const char *src = "a\nb\nc\n" ; + char *dest ; + int dest_len ; + + print_test_name ("Testing psf_strlcpy_crlf") ; + + for (dest_len = 3 ; dest_len < 30 ; dest_len++) + { dest = calloc (1, dest_len + 1) ; + if (dest == NULL) + { printf ("\n\nLine %d: calloc failed!\n\n", __LINE__) ; + exit (1) ; + } ; + + dest [dest_len] = '\xea' ; + + psf_strlcpy_crlf (dest, src, dest_len, sizeof (src)) ; + + if (dest [dest_len] != '\xea') + { printf ("\n\nLine %d: buffer overrun for dest_len == %d\n\n", __LINE__, dest_len) ; + exit (1) ; + } ; + + free (dest) ; + } ; + + puts ("ok") ; +} /* test_psf_strlcpy_crlf */ diff --git a/src/txw.c b/src/txw.c new file mode 100644 index 0000000..fce1095 --- /dev/null +++ b/src/txw.c @@ -0,0 +1,372 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/*=========================================================================== +** Yamaha TX16 Sampler Files. +** +** This header parser was written using information from the SoX source code +** and trial and error experimentation. The code here however is all original. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#if (ENABLE_EXPERIMENTAL_CODE == 0) + +int +txw_open (SF_PRIVATE *psf) +{ if (psf) + return SFE_UNIMPLEMENTED ; + return 0 ; +} /* txw_open */ + +#else + +/*------------------------------------------------------------------------------ +** Markers. +*/ + +#define TXW_DATA_OFFSET 32 + +#define TXW_LOOPED 0x49 +#define TXW_NO_LOOP 0xC9 + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int txw_read_header (SF_PRIVATE *psf) ; + +static sf_count_t txw_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t txw_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t txw_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t txw_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t txw_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +/*------------------------------------------------------------------------------ +** Public functions. +*/ + +/* + * ftp://ftp.t0.or.at/pub/sound/tx16w/samples.yamaha + * ftp://ftp.t0.or.at/pub/sound/tx16w/faq/tx16w.tec + * http://www.t0.or.at/~mpakesch/tx16w/ + * + * from tx16w.c sox 12.15: (7-Oct-98) (Mark Lakata and Leigh Smith) + * char filetype[6] "LM8953" + * nulls[10], + * dummy_aeg[6] + * format 0x49 = looped, 0xC9 = non-looped + * sample_rate 1 = 33 kHz, 2 = 50 kHz, 3 = 16 kHz + * atc_length[3] if sample rate 0, [2]&0xfe = 6: 33kHz, 0x10:50, 0xf6: 16, + * depending on [5] but to heck with it + * rpt_length[3] (these are for looped samples, attack and loop lengths) + * unused[2] + */ + +typedef struct +{ unsigned char format, srate, sr2, sr3 ; + unsigned short srhash ; + unsigned int attacklen, repeatlen ; +} TXW_HEADER ; + +#define ERROR_666 666 + +int +txw_open (SF_PRIVATE *psf) +{ int error ; + + if (psf->file.mode != SFM_READ) + return SFE_UNIMPLEMENTED ; + + if ((error = txw_read_header (psf))) + return error ; + + if (psf_fseek (psf, psf->dataoffset, SEEK_SET) != psf->dataoffset) + return SFE_BAD_SEEK ; + + psf->read_short = txw_read_s ; + psf->read_int = txw_read_i ; + psf->read_float = txw_read_f ; + psf->read_double = txw_read_d ; + + psf->seek = txw_seek ; + + return 0 ; +} /* txw_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +txw_read_header (SF_PRIVATE *psf) +{ TXW_HEADER txwh ; + const char *strptr ; + + memset (&txwh, 0, sizeof (txwh)) ; + memset (psf->u.cbuf, 0, sizeof (psf->u.cbuf)) ; + psf_binheader_readf (psf, "pb", 0, psf->u.cbuf, 16) ; + + if (memcmp (psf->u.cbuf, "LM8953\0\0\0\0\0\0\0\0\0\0", 16) != 0) + return ERROR_666 ; + + psf_log_printf (psf, "Read only : Yamaha TX-16 Sampler (.txw)\nLM8953\n") ; + + /* Jump 6 bytes (dummp_aeg), read format, read sample rate. */ + psf_binheader_readf (psf, "j11", 6, &txwh.format, &txwh.srate) ; + + /* 8 bytes (atc_length[3], rpt_length[3], unused[2]). */ + psf_binheader_readf (psf, "e33j", &txwh.attacklen, &txwh.repeatlen, 2) ; + txwh.sr2 = (txwh.attacklen >> 16) & 0xFE ; + txwh.sr3 = (txwh.repeatlen >> 16) & 0xFE ; + txwh.attacklen &= 0x1FFFF ; + txwh.repeatlen &= 0x1FFFF ; + + switch (txwh.format) + { case TXW_LOOPED : + strptr = "looped" ; + break ; + + case TXW_NO_LOOP : + strptr = "non-looped" ; + break ; + + default : + psf_log_printf (psf, " Format : 0x%02x => ?????\n", txwh.format) ; + return ERROR_666 ; + } ; + + psf_log_printf (psf, " Format : 0x%02X => %s\n", txwh.format, strptr) ; + + strptr = NULL ; + + switch (txwh.srate) + { case 1 : + psf->sf.samplerate = 33333 ; + break ; + + case 2 : + psf->sf.samplerate = 50000 ; + break ; + + case 3 : + psf->sf.samplerate = 16667 ; + break ; + + default : + /* This is ugly and braindead. */ + txwh.srhash = ((txwh.sr2 & 0xFE) << 8) | (txwh.sr3 & 0xFE) ; + switch (txwh.srhash) + { case ((0x6 << 8) | 0x52) : + psf->sf.samplerate = 33333 ; + break ; + + case ((0x10 << 8) | 0x52) : + psf->sf.samplerate = 50000 ; + break ; + + case ((0xF6 << 8) | 0x52) : + psf->sf.samplerate = 166667 ; + break ; + + default : + strptr = " Sample Rate : Unknown : forcing to 33333\n" ; + psf->sf.samplerate = 33333 ; + break ; + } ; + } ; + + + if (strptr) + psf_log_printf (psf, strptr) ; + else if (txwh.srhash) + psf_log_printf (psf, " Sample Rate : %d (0x%X) => %d\n", txwh.srate, txwh.srhash, psf->sf.samplerate) ; + else + psf_log_printf (psf, " Sample Rate : %d => %d\n", txwh.srate, psf->sf.samplerate) ; + + if (txwh.format == TXW_LOOPED) + { psf_log_printf (psf, " Attack Len : %d\n", txwh.attacklen) ; + psf_log_printf (psf, " Repeat Len : %d\n", txwh.repeatlen) ; + } ; + + psf->dataoffset = TXW_DATA_OFFSET ; + psf->datalength = psf->filelength - TXW_DATA_OFFSET ; + psf->sf.frames = 2 * psf->datalength / 3 ; + + + if (psf->datalength % 3 == 1) + psf_log_printf (psf, "*** File seems to be truncated, %d extra bytes.\n", + (int) (psf->datalength % 3)) ; + + if (txwh.attacklen + txwh.repeatlen > psf->sf.frames) + psf_log_printf (psf, "*** File has been truncated.\n") ; + + psf->sf.format = SF_FORMAT_TXW | SF_FORMAT_PCM_16 ; + psf->sf.channels = 1 ; + psf->sf.sections = 1 ; + psf->sf.seekable = SF_TRUE ; + + return 0 ; +} /* txw_read_header */ + +static sf_count_t +txw_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ unsigned char *ucptr ; + short sample ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.cbuf) / 3 ; + bufferlen -= (bufferlen & 1) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = psf_fread (psf->u.cbuf, 3, readcount, psf) ; + + ucptr = psf->u.ucbuf ; + for (k = 0 ; k < readcount ; k += 2) + { sample = (ucptr [0] << 8) | (ucptr [1] & 0xF0) ; + ptr [total + k] = sample ; + sample = (ucptr [2] << 8) | ((ucptr [1] & 0xF) << 4) ; + ptr [total + k + 1] = sample ; + ucptr += 3 ; + } ; + + total += count ; + len -= readcount ; + } ; + + return total ; +} /* txw_read_s */ + +static sf_count_t +txw_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ unsigned char *ucptr ; + short sample ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + bufferlen = sizeof (psf->u.cbuf) / 3 ; + bufferlen -= (bufferlen & 1) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = psf_fread (psf->u.cbuf, 3, readcount, psf) ; + + ucptr = psf->u.ucbuf ; + for (k = 0 ; k < readcount ; k += 2) + { sample = (ucptr [0] << 8) | (ucptr [1] & 0xF0) ; + ptr [total + k] = sample << 16 ; + sample = (ucptr [2] << 8) | ((ucptr [1] & 0xF) << 4) ; + ptr [total + k + 1] = sample << 16 ; + ucptr += 3 ; + } ; + + total += count ; + len -= readcount ; + } ; + + return total ; +} /* txw_read_i */ + +static sf_count_t +txw_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ unsigned char *ucptr ; + short sample ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (psf->norm_float == SF_TRUE) + normfact = 1.0 / 0x8000 ; + else + normfact = 1.0 / 0x10 ; + + bufferlen = sizeof (psf->u.cbuf) / 3 ; + bufferlen -= (bufferlen & 1) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = psf_fread (psf->u.cbuf, 3, readcount, psf) ; + + ucptr = psf->u.ucbuf ; + for (k = 0 ; k < readcount ; k += 2) + { sample = (ucptr [0] << 8) | (ucptr [1] & 0xF0) ; + ptr [total + k] = normfact * sample ; + sample = (ucptr [2] << 8) | ((ucptr [1] & 0xF) << 4) ; + ptr [total + k + 1] = normfact * sample ; + ucptr += 3 ; + } ; + + total += count ; + len -= readcount ; + } ; + + return total ; +} /* txw_read_f */ + +static sf_count_t +txw_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ unsigned char *ucptr ; + short sample ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (psf->norm_double == SF_TRUE) + normfact = 1.0 / 0x8000 ; + else + normfact = 1.0 / 0x10 ; + + bufferlen = sizeof (psf->u.cbuf) / 3 ; + bufferlen -= (bufferlen & 1) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : len ; + count = psf_fread (psf->u.cbuf, 3, readcount, psf) ; + + ucptr = psf->u.ucbuf ; + for (k = 0 ; k < readcount ; k += 2) + { sample = (ucptr [0] << 8) | (ucptr [1] & 0xF0) ; + ptr [total + k] = normfact * sample ; + sample = (ucptr [2] << 8) | ((ucptr [1] & 0xF) << 4) ; + ptr [total + k + 1] = normfact * sample ; + ucptr += 3 ; + } ; + + total += count ; + len -= readcount ; + } ; + + return total ; +} /* txw_read_d */ + +static sf_count_t +txw_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) +{ if (psf && mode) + return offset ; + + return 0 ; +} /* txw_seek */ + +#endif diff --git a/src/ulaw.c b/src/ulaw.c new file mode 100644 index 0000000..c6ff7b8 --- /dev/null +++ b/src/ulaw.c @@ -0,0 +1,1043 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <math.h> + +#include "sndfile.h" +#include "common.h" + +static sf_count_t ulaw_read_ulaw2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t ulaw_read_ulaw2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t ulaw_read_ulaw2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t ulaw_read_ulaw2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t ulaw_write_s2ulaw (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t ulaw_write_i2ulaw (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t ulaw_write_f2ulaw (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t ulaw_write_d2ulaw (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +int +ulaw_init (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { psf->read_short = ulaw_read_ulaw2s ; + psf->read_int = ulaw_read_ulaw2i ; + psf->read_float = ulaw_read_ulaw2f ; + psf->read_double = ulaw_read_ulaw2d ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { psf->write_short = ulaw_write_s2ulaw ; + psf->write_int = ulaw_write_i2ulaw ; + psf->write_float = ulaw_write_f2ulaw ; + psf->write_double = ulaw_write_d2ulaw ; + } ; + + psf->bytewidth = 1 ; + psf->blockwidth = psf->sf.channels ; + + if (psf->filelength > psf->dataoffset) + psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + else + psf->datalength = 0 ; + + psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ; + + return 0 ; +} /* ulaw_init */ + +/*============================================================================== +*/ + +static short ulaw_decode [256] = +{ -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956, + -23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764, + -15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412, + -11900, -11388, -10876, -10364, -9852, -9340, -8828, -8316, + -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140, + -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092, + -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004, + -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980, + -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436, + -1372, -1308, -1244, -1180, -1116, -1052, -988, -924, + -876, -844, -812, -780, -748, -716, -684, -652, + -620, -588, -556, -524, -492, -460, -428, -396, + -372, -356, -340, -324, -308, -292, -276, -260, + -244, -228, -212, -196, -180, -164, -148, -132, + -120, -112, -104, -96, -88, -80, -72, -64, + -56, -48, -40, -32, -24, -16, -8, 0, + + 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, + 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, + 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, + 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, + 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, + 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, + 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, + 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, + 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, + 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, + 876, 844, 812, 780, 748, 716, 684, 652, + 620, 588, 556, 524, 492, 460, 428, 396, + 372, 356, 340, 324, 308, 292, 276, 260, + 244, 228, 212, 196, 180, 164, 148, 132, + 120, 112, 104, 96, 88, 80, 72, 64, + 56, 48, 40, 32, 24, 16, 8, 0 +} ; + +static +unsigned char ulaw_encode [8193] = +{ 0xff, 0xfe, 0xfe, 0xfd, 0xfd, 0xfc, 0xfc, 0xfb, 0xfb, 0xfa, 0xfa, 0xf9, + 0xf9, 0xf8, 0xf8, 0xf7, 0xf7, 0xf6, 0xf6, 0xf5, 0xf5, 0xf4, 0xf4, 0xf3, + 0xf3, 0xf2, 0xf2, 0xf1, 0xf1, 0xf0, 0xf0, 0xef, 0xef, 0xef, 0xef, 0xee, + 0xee, 0xee, 0xee, 0xed, 0xed, 0xed, 0xed, 0xec, 0xec, 0xec, 0xec, 0xeb, + 0xeb, 0xeb, 0xeb, 0xea, 0xea, 0xea, 0xea, 0xe9, 0xe9, 0xe9, 0xe9, 0xe8, + 0xe8, 0xe8, 0xe8, 0xe7, 0xe7, 0xe7, 0xe7, 0xe6, 0xe6, 0xe6, 0xe6, 0xe5, + 0xe5, 0xe5, 0xe5, 0xe4, 0xe4, 0xe4, 0xe4, 0xe3, 0xe3, 0xe3, 0xe3, 0xe2, + 0xe2, 0xe2, 0xe2, 0xe1, 0xe1, 0xe1, 0xe1, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, + 0xdf, 0xdf, 0xdf, 0xdf, 0xdf, 0xdf, 0xdf, 0xde, 0xde, 0xde, 0xde, 0xde, + 0xde, 0xde, 0xde, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdc, + 0xdc, 0xdc, 0xdc, 0xdc, 0xdc, 0xdc, 0xdc, 0xdb, 0xdb, 0xdb, 0xdb, 0xdb, + 0xdb, 0xdb, 0xdb, 0xda, 0xda, 0xda, 0xda, 0xda, 0xda, 0xda, 0xda, 0xd9, + 0xd9, 0xd9, 0xd9, 0xd9, 0xd9, 0xd9, 0xd9, 0xd8, 0xd8, 0xd8, 0xd8, 0xd8, + 0xd8, 0xd8, 0xd8, 0xd7, 0xd7, 0xd7, 0xd7, 0xd7, 0xd7, 0xd7, 0xd7, 0xd6, + 0xd6, 0xd6, 0xd6, 0xd6, 0xd6, 0xd6, 0xd6, 0xd5, 0xd5, 0xd5, 0xd5, 0xd5, + 0xd5, 0xd5, 0xd5, 0xd4, 0xd4, 0xd4, 0xd4, 0xd4, 0xd4, 0xd4, 0xd4, 0xd3, + 0xd3, 0xd3, 0xd3, 0xd3, 0xd3, 0xd3, 0xd3, 0xd2, 0xd2, 0xd2, 0xd2, 0xd2, + 0xd2, 0xd2, 0xd2, 0xd1, 0xd1, 0xd1, 0xd1, 0xd1, 0xd1, 0xd1, 0xd1, 0xd0, + 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xd0, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, + 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xcf, 0xce, + 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, 0xce, + 0xce, 0xce, 0xce, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, + 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, + 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcb, + 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, + 0xcb, 0xcb, 0xcb, 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, + 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, 0xca, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, + 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc8, + 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, + 0xc8, 0xc8, 0xc8, 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0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00 +} ; + +static inline void +ulaw2s_array (unsigned char *buffer, int count, short *ptr) +{ while (--count >= 0) + ptr [count] = ulaw_decode [(int) buffer [count]] ; +} /* ulaw2s_array */ + +static inline void +ulaw2i_array (unsigned char *buffer, int count, int *ptr) +{ while (--count >= 0) + ptr [count] = ulaw_decode [buffer [count]] << 16 ; +} /* ulaw2i_array */ + +static inline void +ulaw2f_array (unsigned char *buffer, int count, float *ptr, float normfact) +{ while (--count >= 0) + ptr [count] = normfact * ulaw_decode [(int) buffer [count]] ; +} /* ulaw2f_array */ + +static inline void +ulaw2d_array (const unsigned char *buffer, int count, double *ptr, double normfact) +{ while (--count >= 0) + ptr [count] = normfact * ulaw_decode [(int) buffer [count]] ; +} /* ulaw2d_array */ + +static inline void +s2ulaw_array (const short *ptr, int count, unsigned char *buffer) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = ulaw_encode [ptr [count] / 4] ; + else + buffer [count] = 0x7F & ulaw_encode [ptr [count] / -4] ; + } ; +} /* s2ulaw_array */ + +static inline void +i2ulaw_array (const int *ptr, int count, unsigned char *buffer) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = ulaw_encode [ptr [count] >> (16 + 2)] ; + else + buffer [count] = 0x7F & ulaw_encode [-ptr [count] >> (16 + 2)] ; + } ; +} /* i2ulaw_array */ + +static inline void +f2ulaw_array (const float *ptr, int count, unsigned char *buffer, float normfact) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = ulaw_encode [lrintf (normfact * ptr [count])] ; + else + buffer [count] = 0x7F & ulaw_encode [- lrintf (normfact * ptr [count])] ; + } ; +} /* f2ulaw_array */ + +static inline void +d2ulaw_array (const double *ptr, int count, unsigned char *buffer, double normfact) +{ while (--count >= 0) + { if (ptr [count] >= 0) + buffer [count] = ulaw_encode [lrint (normfact * ptr [count])] ; + else + buffer [count] = 0x7F & ulaw_encode [- lrint (normfact * ptr [count])] ; + } ; +} /* d2ulaw_array */ + +/*============================================================================== +*/ + +static sf_count_t +ulaw_read_ulaw2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + ulaw2s_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* ulaw_read_ulaw2s */ + +static sf_count_t +ulaw_read_ulaw2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + ulaw2i_array (psf->u.ucbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* ulaw_read_ulaw2i */ + +static sf_count_t +ulaw_read_ulaw2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + ulaw2f_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* ulaw_read_ulaw2f */ + +static sf_count_t +ulaw_read_ulaw2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + normfact = (psf->norm_double) ? 1.0 / ((double) 0x8000) : 1.0 ; + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.ucbuf, 1, bufferlen, psf) ; + ulaw2d_array (psf->u.ucbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* ulaw_read_ulaw2d */ + +/*============================================================================================= +*/ + +static sf_count_t +ulaw_write_s2ulaw (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2ulaw_array (ptr + total, bufferlen, psf->u.ucbuf) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* ulaw_write_s2ulaw */ + +static sf_count_t +ulaw_write_i2ulaw (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2ulaw_array (ptr + total, bufferlen, psf->u.ucbuf) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* ulaw_write_i2ulaw */ + +static sf_count_t +ulaw_write_f2ulaw (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + float normfact ; + + /* Factor in a divide by 4. */ + normfact = (psf->norm_float == SF_TRUE) ? (0.25 * 0x7FFF) : 0.25 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2ulaw_array (ptr + total, bufferlen, psf->u.ucbuf, normfact) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* ulaw_write_f2ulaw */ + +static sf_count_t +ulaw_write_d2ulaw (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ int bufferlen, writecount ; + sf_count_t total = 0 ; + double normfact ; + + /* Factor in a divide by 4. */ + normfact = (psf->norm_double) ? (0.25 * 0x7FFF) : 0.25 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + d2ulaw_array (ptr + total, bufferlen, psf->u.ucbuf, normfact) ; + writecount = psf_fwrite (psf->u.ucbuf, 1, bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* ulaw_write_d2ulaw */ + diff --git a/src/version-metadata.rc b/src/version-metadata.rc new file mode 100644 index 0000000..225ccbd --- /dev/null +++ b/src/version-metadata.rc @@ -0,0 +1,32 @@ +#include <windows.h> + +LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_AUS +1 VERSIONINFO + FILEVERSION 1,0,25,0 + PRODUCTVERSION 1,0,25,0 + FILEOS VOS__WINDOWS32 + FILETYPE VFT_DLL + FILESUBTYPE VFT2_UNKNOWN + FILEFLAGSMASK 0x00000000 + FILEFLAGS 0x00000000 +{ + BLOCK "StringFileInfo" + { + BLOCK "040904e4" + { + VALUE "FileDescription", "A library for reading and writing audio files." + VALUE "FileVersion", "1.0.25.0\0" + VALUE "Full Version", "1.0.25" + VALUE "InternalName", "libsndfile" + VALUE "LegalCopyright", "Copyright (C) 1999-2010, Licensed LGPL" + VALUE "OriginalFilename", "libsndfile-1.dll" + VALUE "ProductName", "libsndfile-1 DLL" + VALUE "ProductVersion", "1.0.25.0\0" + VALUE "Language", "Language Neutral" + } + } + BLOCK "VarFileInfo" + { + VALUE "Translation", 0x0409, 0x04E4 + } +} diff --git a/src/version-metadata.rc.in b/src/version-metadata.rc.in new file mode 100644 index 0000000..06f64c0 --- /dev/null +++ b/src/version-metadata.rc.in @@ -0,0 +1,32 @@ +#include <windows.h> + +LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_AUS +1 VERSIONINFO + FILEVERSION @WIN_RC_VERSION@,0 + PRODUCTVERSION @WIN_RC_VERSION@,0 + FILEOS VOS__WINDOWS32 + FILETYPE VFT_DLL + FILESUBTYPE VFT2_UNKNOWN + FILEFLAGSMASK 0x00000000 + FILEFLAGS 0x00000000 +{ + BLOCK "StringFileInfo" + { + BLOCK "040904e4" + { + VALUE "FileDescription", "A library for reading and writing audio files." + VALUE "FileVersion", "@CLEAN_VERSION@.0\0" + VALUE "Full Version", "@PACKAGE_VERSION@" + VALUE "InternalName", "libsndfile" + VALUE "LegalCopyright", "Copyright (C) 1999-2010, Licensed LGPL" + VALUE "OriginalFilename", "libsndfile-1.dll" + VALUE "ProductName", "libsndfile-1 DLL" + VALUE "ProductVersion", "@CLEAN_VERSION@.0\0" + VALUE "Language", "Language Neutral" + } + } + BLOCK "VarFileInfo" + { + VALUE "Translation", 0x0409, 0x04E4 + } +} diff --git a/src/voc.c b/src/voc.c new file mode 100644 index 0000000..d13b033 --- /dev/null +++ b/src/voc.c @@ -0,0 +1,882 @@ +/* +** Copyright (C) 2001-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* RANT: +** The VOC file format is the most brain damaged format I have yet had to deal +** with. No one programmer could have bee stupid enough to put this together. +** Instead it looks like a series of manic, dyslexic assembly language programmers +** hacked it to fit their needs. +** Utterly woeful. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + + +/*------------------------------------------------------------------------------ + * Typedefs for file chunks. +*/ + +#define VOC_MAX_SECTIONS 200 + +enum +{ VOC_TERMINATOR = 0, + VOC_SOUND_DATA = 1, + VOC_SOUND_CONTINUE = 2, + VOC_SILENCE = 3, + VOC_MARKER = 4, + VOC_ASCII = 5, + VOC_REPEAT = 6, + VOC_END_REPEAT = 7, + VOC_EXTENDED = 8, + VOC_EXTENDED_II = 9 +} ; + +typedef struct +{ int samples ; + int offset ; /* Offset of zero => silence. */ +} SND_DATA_BLOCKS ; + +typedef struct +{ unsigned int sections, section_types ; + int samplerate, channels, bitwidth ; + SND_DATA_BLOCKS blocks [VOC_MAX_SECTIONS] ; +} VOC_DATA ; + +/*------------------------------------------------------------------------------ + * Private static functions. +*/ + +static int voc_close (SF_PRIVATE *psf) ; +static int voc_write_header (SF_PRIVATE *psf, int calc_length) ; +static int voc_read_header (SF_PRIVATE *psf) ; + +static const char* voc_encoding2str (int encoding) ; + +#if 0 + +/* These functions would be required for files with more than one VOC_SOUND_DATA +** segment. Not sure whether to bother implementing this. +*/ + +static int voc_multi_init (SF_PRIVATE *psf, VOC_DATA *pvoc) ; + +static int voc_multi_read_uc2s (SF_PRIVATE *psf, short *ptr, int len) ; +static int voc_multi_read_les2s (SF_PRIVATE *psf, short *ptr, int len) ; + +static int voc_multi_read_uc2i (SF_PRIVATE *psf, int *ptr, int len) ; +static int voc_multi_read_les2i (SF_PRIVATE *psf, int *ptr, int len) ; + +static int voc_multi_read_uc2f (SF_PRIVATE *psf, float *ptr, int len) ; +static int voc_multi_read_les2f (SF_PRIVATE *psf, float *ptr, int len) ; + +static int voc_multi_read_uc2d (SF_PRIVATE *psf, double *ptr, int len) ; +static int voc_multi_read_les2d (SF_PRIVATE *psf, double *ptr, int len) ; +#endif + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +voc_open (SF_PRIVATE *psf) +{ int subformat, error = 0 ; + + if (psf->is_pipe) + return SFE_VOC_NO_PIPE ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = voc_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_VOC) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_LITTLE ; + + if ((error = voc_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = voc_write_header ; + } ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + psf->container_close = voc_close ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + return error ; +} /* voc_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +voc_read_header (SF_PRIVATE *psf) +{ VOC_DATA *pvoc ; + char creative [20] ; + unsigned char block_type, rate_byte ; + short version, checksum, encoding, dataoffset ; + int offset ; + + /* Set position to start of file to begin reading header. */ + offset = psf_binheader_readf (psf, "pb", 0, creative, SIGNED_SIZEOF (creative)) ; + + if (creative [sizeof (creative) - 1] != 0x1A) + return SFE_VOC_NO_CREATIVE ; + + /* Terminate the string. */ + creative [sizeof (creative) - 1] = 0 ; + + if (strcmp ("Creative Voice File", creative)) + return SFE_VOC_NO_CREATIVE ; + + psf_log_printf (psf, "%s\n", creative) ; + + offset += psf_binheader_readf (psf, "e222", &dataoffset, &version, &checksum) ; + + psf->dataoffset = dataoffset ; + + psf_log_printf (psf, "dataoffset : %d\n" + "version : 0x%X\n" + "checksum : 0x%X\n", psf->dataoffset, version, checksum) ; + + if (version != 0x010A && version != 0x0114) + return SFE_VOC_BAD_VERSION ; + + if (! (psf->codec_data = malloc (sizeof (VOC_DATA)))) + return SFE_MALLOC_FAILED ; + + pvoc = (VOC_DATA*) psf->codec_data ; + + memset (pvoc, 0, sizeof (VOC_DATA)) ; + + /* Set the default encoding now. */ + psf->sf.format = SF_FORMAT_VOC ; /* Major format */ + encoding = SF_FORMAT_PCM_U8 ; /* Minor format */ + psf->endian = SF_ENDIAN_LITTLE ; + + while (1) + { unsigned size ; + short count ; + + block_type = 0 ; + offset += psf_binheader_readf (psf, "1", &block_type) ; + + switch (block_type) + { case VOC_ASCII : + offset += psf_binheader_readf (psf, "e3", &size) ; + + psf_log_printf (psf, " ASCII : %d\n", size) ; + + if (size < sizeof (psf->header) - 1) + { offset += psf_binheader_readf (psf, "b", psf->header, size) ; + psf->header [size] = 0 ; + psf_log_printf (psf, " text : %s\n", psf->header) ; + continue ; + } + + offset += psf_binheader_readf (psf, "j", size) ; + continue ; + + case VOC_REPEAT : + offset += psf_binheader_readf (psf, "e32", &size, &count) ; + psf_log_printf (psf, " Repeat : %d\n", count) ; + continue ; + + case VOC_SOUND_DATA : + case VOC_EXTENDED : + case VOC_EXTENDED_II : + break ; + + default : psf_log_printf (psf, "*** Weird block marker (%d)\n", block_type) ; + } ; + + break ; + } ; + + if (block_type == VOC_SOUND_DATA) + { unsigned char compression ; + int size ; + + offset += psf_binheader_readf (psf, "e311", &size, &rate_byte, &compression) ; + + psf->sf.samplerate = 1000000 / (256 - (rate_byte & 0xFF)) ; + + psf_log_printf (psf, " Sound Data : %d\n sr : %d => %dHz\n comp : %d\n", + size, rate_byte, psf->sf.samplerate, compression) ; + + if (offset + size - 1 > psf->filelength) + { psf_log_printf (psf, "Seems to be a truncated file.\n") ; + psf_log_printf (psf, "offset: %d size: %d sum: %d filelength: %D\n", offset, size, offset + size, psf->filelength) ; + return SFE_VOC_BAD_SECTIONS ; + } + else if (psf->filelength - offset - size > 4) + { psf_log_printf (psf, "Seems to be a multi-segment file (#1).\n") ; + psf_log_printf (psf, "offset: %d size: %d sum: %d filelength: %D\n", offset, size, offset + size, psf->filelength) ; + return SFE_VOC_BAD_SECTIONS ; + } ; + + psf->dataoffset = offset ; + psf->dataend = psf->filelength - 1 ; + + psf->sf.channels = 1 ; + psf->bytewidth = 1 ; + + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_PCM_U8 ; + + return 0 ; + } ; + + if (block_type == VOC_EXTENDED) + { unsigned char pack, stereo, compression ; + unsigned short rate_short ; + int size ; + + offset += psf_binheader_readf (psf, "e3211", &size, &rate_short, &pack, &stereo) ; + + psf_log_printf (psf, " Extended : %d\n", size) ; + if (size == 4) + psf_log_printf (psf, " size : 4\n") ; + else + psf_log_printf (psf, " size : %d (should be 4)\n", size) ; + + psf_log_printf (psf, " pack : %d\n" + " stereo : %s\n", pack, (stereo ? "yes" : "no")) ; + + if (stereo) + { psf->sf.channels = 2 ; + psf->sf.samplerate = 128000000 / (65536 - rate_short) ; + } + else + { psf->sf.channels = 1 ; + psf->sf.samplerate = 256000000 / (65536 - rate_short) ; + } ; + + psf_log_printf (psf, " sr : %d => %dHz\n", (rate_short & 0xFFFF), psf->sf.samplerate) ; + + offset += psf_binheader_readf (psf, "1", &block_type) ; + + if (block_type != VOC_SOUND_DATA) + { psf_log_printf (psf, "*** Expecting VOC_SOUND_DATA section.\n") ; + return SFE_VOC_BAD_FORMAT ; + } ; + + offset += psf_binheader_readf (psf, "e311", &size, &rate_byte, &compression) ; + + psf_log_printf (psf, " Sound Data : %d\n" + " sr : %d\n" + " comp : %d\n", size, rate_byte, compression) ; + + + if (offset + size - 1 > psf->filelength) + { psf_log_printf (psf, "Seems to be a truncated file.\n") ; + psf_log_printf (psf, "offset: %d size: %d sum: %d filelength: %D\n", offset, size, offset + size, psf->filelength) ; + return SFE_VOC_BAD_SECTIONS ; + } + else if (offset + size - 1 < psf->filelength) + { psf_log_printf (psf, "Seems to be a multi-segment file (#2).\n") ; + psf_log_printf (psf, "offset: %d size: %d sum: %d filelength: %D\n", offset, size, offset + size, psf->filelength) ; + return SFE_VOC_BAD_SECTIONS ; + } ; + + psf->dataoffset = offset ; + psf->dataend = psf->filelength - 1 ; + + psf->bytewidth = 1 ; + + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_PCM_U8 ; + + return 0 ; + } + + if (block_type == VOC_EXTENDED_II) + { unsigned char bitwidth, channels ; + int size, fourbytes ; + + offset += psf_binheader_readf (psf, "e341124", &size, &psf->sf.samplerate, + &bitwidth, &channels, &encoding, &fourbytes) ; + + if (size * 2 == psf->filelength - 39) + { int temp_size = psf->filelength - 31 ; + + psf_log_printf (psf, " Extended II : %d (SoX bug: should be %d)\n", size, temp_size) ; + size = temp_size ; + } + else + psf_log_printf (psf, " Extended II : %d\n", size) ; + + psf_log_printf (psf, " sample rate : %d\n" + " bit width : %d\n" + " channels : %d\n", psf->sf.samplerate, bitwidth, channels) ; + + if (bitwidth == 16 && encoding == 0) + { encoding = 4 ; + psf_log_printf (psf, " encoding : 0 (SoX bug: should be 4 for 16 bit signed PCM)\n") ; + } + else + psf_log_printf (psf, " encoding : %d => %s\n", encoding, voc_encoding2str (encoding)) ; + + + psf_log_printf (psf, " fourbytes : %X\n", fourbytes) ; + + psf->sf.channels = channels ; + + psf->dataoffset = offset ; + psf->dataend = psf->filelength - 1 ; + + if (size + 31 == psf->filelength + 1) + { /* Hack for reading files produced using + ** sf_command (SFC_UPDATE_HEADER_NOW). + */ + psf_log_printf (psf, "Missing zero byte at end of file.\n") ; + size = psf->filelength - 30 ; + psf->dataend = 0 ; + } + else if (size + 31 > psf->filelength) + { psf_log_printf (psf, "Seems to be a truncated file.\n") ; + size = psf->filelength - 31 ; + } + else if (size + 31 < psf->filelength) + psf_log_printf (psf, "Seems to be a multi-segment file (#3).\n") ; + + switch (encoding) + { case 0 : + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_PCM_U8 ; + psf->bytewidth = 1 ; + break ; + + case 4 : + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_PCM_16 ; + psf->bytewidth = 2 ; + break ; + + case 6 : + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_ALAW ; + psf->bytewidth = 1 ; + break ; + + case 7 : + psf->sf.format = SF_FORMAT_VOC | SF_FORMAT_ULAW ; + psf->bytewidth = 1 ; + break ; + + default : /* Unknown */ + return SFE_UNKNOWN_FORMAT ; + break ; + } ; + + } ; + + return 0 ; +} /* voc_read_header */ + +/*==================================================================================== +*/ + +static int +voc_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int rate_const, subformat ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* VOC marker and 0x1A byte. */ + psf_binheader_writef (psf, "eb1", "Creative Voice File", make_size_t (19), 0x1A) ; + + /* Data offset, version and other. */ + psf_binheader_writef (psf, "e222", 26, 0x0114, 0x111F) ; + + /* Use same logic as SOX. + ** If the file is mono 8 bit data, use VOC_SOUND_DATA. + ** If the file is mono 16 bit data, use VOC_EXTENED. + ** Otherwise use VOC_EXTENED_2. + */ + + if (subformat == SF_FORMAT_PCM_U8 && psf->sf.channels == 1) + { /* samplerate = 1000000 / (256 - rate_const) ; */ + rate_const = 256 - 1000000 / psf->sf.samplerate ; + + /* First type marker, length, rate_const and compression */ + psf_binheader_writef (psf, "e1311", VOC_SOUND_DATA, (int) (psf->datalength + 1), rate_const, 0) ; + } + else if (subformat == SF_FORMAT_PCM_U8 && psf->sf.channels == 2) + { /* sample_rate = 128000000 / (65536 - rate_short) ; */ + rate_const = 65536 - 128000000 / psf->sf.samplerate ; + + /* First write the VOC_EXTENDED section + ** marker, length, rate_const and compression + */ + psf_binheader_writef (psf, "e13211", VOC_EXTENDED, 4, rate_const, 0, 1) ; + + /* samplerate = 1000000 / (256 - rate_const) ; */ + rate_const = 256 - 1000000 / psf->sf.samplerate ; + + /* Now write the VOC_SOUND_DATA section + ** marker, length, rate_const and compression + */ + psf_binheader_writef (psf, "e1311", VOC_SOUND_DATA, (int) (psf->datalength + 1), rate_const, 0) ; + } + else + { int length ; + + if (psf->sf.channels < 1 || psf->sf.channels > 2) + return SFE_CHANNEL_COUNT ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + psf->bytewidth = 1 ; + length = psf->sf.frames * psf->sf.channels * psf->bytewidth + 12 ; + /* Marker, length, sample rate, bitwidth, stereo flag, encoding and fourt zero bytes. */ + psf_binheader_writef (psf, "e1341124", VOC_EXTENDED_II, length, psf->sf.samplerate, 16, psf->sf.channels, 4, 0) ; + break ; + + case SF_FORMAT_PCM_16 : + psf->bytewidth = 2 ; + length = psf->sf.frames * psf->sf.channels * psf->bytewidth + 12 ; + /* Marker, length, sample rate, bitwidth, stereo flag, encoding and fourt zero bytes. */ + psf_binheader_writef (psf, "e1341124", VOC_EXTENDED_II, length, psf->sf.samplerate, 16, psf->sf.channels, 4, 0) ; + break ; + + case SF_FORMAT_ALAW : + psf->bytewidth = 1 ; + length = psf->sf.frames * psf->sf.channels * psf->bytewidth + 12 ; + psf_binheader_writef (psf, "e1341124", VOC_EXTENDED_II, length, psf->sf.samplerate, 8, psf->sf.channels, 6, 0) ; + break ; + + case SF_FORMAT_ULAW : + psf->bytewidth = 1 ; + length = psf->sf.frames * psf->sf.channels * psf->bytewidth + 12 ; + psf_binheader_writef (psf, "e1341124", VOC_EXTENDED_II, length, psf->sf.samplerate, 8, psf->sf.channels, 7, 0) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + } ; + + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* voc_write_header */ + +static int +voc_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { /* Now we know for certain the length of the file we can re-write + ** correct values for the FORM, 8SVX and BODY chunks. + */ + unsigned char byte = VOC_TERMINATOR ; + + + psf_fseek (psf, 0, SEEK_END) ; + + /* Write terminator */ + psf_fwrite (&byte, 1, 1, psf) ; + + voc_write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* voc_close */ + +static const char* +voc_encoding2str (int encoding) +{ + switch (encoding) + { case 0 : return "8 bit unsigned PCM" ; + case 4 : return "16 bit signed PCM" ; + case 6 : return "A-law" ; + case 7 : return "u-law" ; + default : break ; + } + return "*** Unknown ***" ; +} /* voc_encoding2str */ + +/*==================================================================================== +*/ + +#if 0 +static int +voc_multi_init (SF_PRIVATE *psf, VOC_DATA *pvoc) +{ + psf->sf.frames = 0 ; + + if (pvoc->bitwidth == 8) + { psf->read_short = voc_multi_read_uc2s ; + psf->read_int = voc_multi_read_uc2i ; + psf->read_float = voc_multi_read_uc2f ; + psf->read_double = voc_multi_read_uc2d ; + return 0 ; + } ; + + if (pvoc->bitwidth == 16) + { psf->read_short = voc_multi_read_les2s ; + psf->read_int = voc_multi_read_les2i ; + psf->read_float = voc_multi_read_les2f ; + psf->read_double = voc_multi_read_les2d ; + return 0 ; + } ; + + psf_log_printf (psf, "Error : bitwith != 8 && bitwidth != 16.\n") ; + + return SFE_UNIMPLEMENTED ; +} /* voc_multi_read_int */ + +/*------------------------------------------------------------------------------------ +*/ + +static int +voc_multi_read_uc2s (SF_PRIVATE *psf, short *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_uc2s */ + +static int +voc_multi_read_les2s (SF_PRIVATE *psf, short *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_les2s */ + + +static int +voc_multi_read_uc2i (SF_PRIVATE *psf, int *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_uc2i */ + +static int +voc_multi_read_les2i (SF_PRIVATE *psf, int *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_les2i */ + + +static int +voc_multi_read_uc2f (SF_PRIVATE *psf, float *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_uc2f */ + +static int +voc_multi_read_les2f (SF_PRIVATE *psf, float *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_les2f */ + + +static int +voc_multi_read_uc2d (SF_PRIVATE *psf, double *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_uc2d */ + +static int +voc_multi_read_les2d (SF_PRIVATE *psf, double *ptr, int len) +{ + + return 0 ; +} /* voc_multi_read_les2d */ + +#endif + +/*------------------------------------------------------------------------------------ + +Creative Voice (VOC) file format +-------------------------------- + +~From: galt@dsd.es.com + +(byte numbers are hex!) + + HEADER (bytes 00-19) + Series of DATA BLOCKS (bytes 1A+) [Must end w/ Terminator Block] + +- --------------------------------------------------------------- + +HEADER: +======= + byte # Description + ------ ------------------------------------------ + 00-12 "Creative Voice File" + 13 1A (eof to abort printing of file) + 14-15 Offset of first datablock in .voc file (std 1A 00 + in Intel Notation) + 16-17 Version number (minor,major) (VOC-HDR puts 0A 01) + 18-19 1's Comp of Ver. # + 1234h (VOC-HDR puts 29 11) + +- --------------------------------------------------------------- + +DATA BLOCK: +=========== + + Data Block: TYPE(1-byte), SIZE(3-bytes), INFO(0+ bytes) + NOTE: Terminator Block is an exception -- it has only the TYPE byte. + + TYPE Description Size (3-byte int) Info + ---- ----------- ----------------- ----------------------- + 00 Terminator (NONE) (NONE) + 01 Sound data 2+length of data * + 02 Sound continue length of data Voice Data + 03 Silence 3 ** + 04 Marker 2 Marker# (2 bytes) + 05 ASCII length of string null terminated string + 06 Repeat 2 Count# (2 bytes) + 07 End repeat 0 (NONE) + 08 Extended 4 *** + + *Sound Info Format: + --------------------- + 00 Sample Rate + 01 Compression Type + 02+ Voice Data + + **Silence Info Format: + ---------------------------- + 00-01 Length of silence - 1 + 02 Sample Rate + + + ***Extended Info Format: + --------------------- + 00-01 Time Constant: Mono: 65536 - (256000000/sample_rate) + Stereo: 65536 - (25600000/(2*sample_rate)) + 02 Pack + 03 Mode: 0 = mono + 1 = stereo + + + Marker# -- Driver keeps the most recent marker in a status byte + Count# -- Number of repetitions + 1 + Count# may be 1 to FFFE for 0 - FFFD repetitions + or FFFF for endless repetitions + Sample Rate -- SR byte = 256-(1000000/sample_rate) + Length of silence -- in units of sampling cycle + Compression Type -- of voice data + 8-bits = 0 + 4-bits = 1 + 2.6-bits = 2 + 2-bits = 3 + Multi DAC = 3+(# of channels) [interesting-- + this isn't in the developer's manual] + + +--------------------------------------------------------------------------------- +Addendum submitted by Votis Kokavessis: + +After some experimenting with .VOC files I found out that there is a Data Block +Type 9, which is not covered in the VOC.TXT file. Here is what I was able to discover +about this block type: + + +TYPE: 09 +SIZE: 12 + length of data +INFO: 12 (twelve) bytes + +INFO STRUCTURE: + +Bytes 0-1: (Word) Sample Rate (e.g. 44100) +Bytes 2-3: zero (could be that bytes 0-3 are a DWord for Sample Rate) +Byte 4: Sample Size in bits (e.g. 16) +Byte 5: Number of channels (e.g. 1 for mono, 2 for stereo) +Byte 6: Unknown (equal to 4 in all files I examined) +Bytes 7-11: zero + + +-------------------------------------------------------------------------------------*/ + +/*===================================================================================== +**===================================================================================== +**===================================================================================== +**===================================================================================== +*/ + +/*------------------------------------------------------------------------ +The following is taken from the Audio File Formats FAQ dated 2-Jan-1995 +and submitted by Guido van Rossum <guido@cwi.nl>. +-------------------------------------------------------------------------- +Creative Voice (VOC) file format +-------------------------------- + +From: galt@dsd.es.com + +(byte numbers are hex!) + + HEADER (bytes 00-19) + Series of DATA BLOCKS (bytes 1A+) [Must end w/ Terminator Block] + +- --------------------------------------------------------------- + +HEADER: +------- + byte # Description + ------ ------------------------------------------ + 00-12 "Creative Voice File" + 13 1A (eof to abort printing of file) + 14-15 Offset of first datablock in .voc file (std 1A 00 + in Intel Notation) + 16-17 Version number (minor,major) (VOC-HDR puts 0A 01) + 18-19 2's Comp of Ver. # + 1234h (VOC-HDR puts 29 11) + +- --------------------------------------------------------------- + +DATA BLOCK: +----------- + + Data Block: TYPE(1-byte), SIZE(3-bytes), INFO(0+ bytes) + NOTE: Terminator Block is an exception -- it has only the TYPE byte. + + TYPE Description Size (3-byte int) Info + ---- ----------- ----------------- ----------------------- + 00 Terminator (NONE) (NONE) + 01 Sound data 2+length of data * + 02 Sound continue length of data Voice Data + 03 Silence 3 ** + 04 Marker 2 Marker# (2 bytes) + 05 ASCII length of string null terminated string + 06 Repeat 2 Count# (2 bytes) + 07 End repeat 0 (NONE) + 08 Extended 4 *** + + *Sound Info Format: **Silence Info Format: + --------------------- ---------------------------- + 00 Sample Rate 00-01 Length of silence - 1 + 01 Compression Type 02 Sample Rate + 02+ Voice Data + + ***Extended Info Format: + --------------------- + 00-01 Time Constant: Mono: 65536 - (256000000/sample_rate) + Stereo: 65536 - (25600000/(2*sample_rate)) + 02 Pack + 03 Mode: 0 = mono + 1 = stereo + + + Marker# -- Driver keeps the most recent marker in a status byte + Count# -- Number of repetitions + 1 + Count# may be 1 to FFFE for 0 - FFFD repetitions + or FFFF for endless repetitions + Sample Rate -- SR byte = 256-(1000000/sample_rate) + Length of silence -- in units of sampling cycle + Compression Type -- of voice data + 8-bits = 0 + 4-bits = 1 + 2.6-bits = 2 + 2-bits = 3 + Multi DAC = 3+(# of channels) [interesting-- + this isn't in the developer's manual] + +Detailed description of new data blocks (VOC files version 1.20 and above): + + (Source is fax from Barry Boone at Creative Labs, 405/742-6622) + +BLOCK 8 - digitized sound attribute extension, must preceed block 1. + Used to define stereo, 8 bit audio + BYTE bBlockID; // = 8 + BYTE nBlockLen[3]; // 3 byte length + WORD wTimeConstant; // time constant = same as block 1 + BYTE bPackMethod; // same as in block 1 + BYTE bVoiceMode; // 0-mono, 1-stereo + + Data is stored left, right + +BLOCK 9 - data block that supersedes blocks 1 and 8. + Used for stereo, 16 bit. + + BYTE bBlockID; // = 9 + BYTE nBlockLen[3]; // length 12 plus length of sound + DWORD dwSamplesPerSec; // samples per second, not time const. + BYTE bBitsPerSample; // e.g., 8 or 16 + BYTE bChannels; // 1 for mono, 2 for stereo + WORD wFormat; // see below + BYTE reserved[4]; // pad to make block w/o data + // have a size of 16 bytes + + Valid values of wFormat are: + + 0x0000 8-bit unsigned PCM + 0x0001 Creative 8-bit to 4-bit ADPCM + 0x0002 Creative 8-bit to 3-bit ADPCM + 0x0003 Creative 8-bit to 2-bit ADPCM + 0x0004 16-bit signed PCM + 0x0006 CCITT a-Law + 0x0007 CCITT u-Law + 0x02000 Creative 16-bit to 4-bit ADPCM + + Data is stored left, right + +------------------------------------------------------------------------*/ diff --git a/src/vox_adpcm.c b/src/vox_adpcm.c new file mode 100644 index 0000000..579a5d0 --- /dev/null +++ b/src/vox_adpcm.c @@ -0,0 +1,394 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** This is the OKI / Dialogic ADPCM encoder/decoder. It converts from +** 12 bit linear sample data to a 4 bit ADPCM. +*/ + +/* + * Note: some early Dialogic hardware does not always reset the ADPCM encoder + * at the start of each vox file. This can result in clipping and/or DC offset + * problems when it comes to decoding the audio. Whilst little can be done + * about the clipping, a DC offset can be removed by passing the decoded audio + * through a high-pass filter at e.g. 10Hz. + */ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "ima_oki_adpcm.h" + + +static sf_count_t vox_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t vox_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t vox_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t vox_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t vox_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t vox_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t vox_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t vox_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static int vox_read_block (SF_PRIVATE *psf, IMA_OKI_ADPCM *pvox, short *ptr, int len) ; + +/*------------------------------------------------------------------------------ +*/ + +static int +codec_close (SF_PRIVATE * psf) +{ + IMA_OKI_ADPCM * p = (IMA_OKI_ADPCM *) psf->codec_data ; + + if (p->errors) + psf_log_printf (psf, "*** Warning : ADPCM state errors: %d\n", p->errors) ; + return p->errors ; +} /* code_close */ + +int +vox_adpcm_init (SF_PRIVATE *psf) +{ IMA_OKI_ADPCM *pvox = NULL ; + + if (psf->file.mode == SFM_RDWR) + return SFE_BAD_MODE_RW ; + + if (psf->file.mode == SFM_WRITE && psf->sf.channels != 1) + return SFE_CHANNEL_COUNT ; + + if ((pvox = malloc (sizeof (IMA_OKI_ADPCM))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = (void*) pvox ; + memset (pvox, 0, sizeof (IMA_OKI_ADPCM)) ; + + if (psf->file.mode == SFM_WRITE) + { psf->write_short = vox_write_s ; + psf->write_int = vox_write_i ; + psf->write_float = vox_write_f ; + psf->write_double = vox_write_d ; + } + else + { psf_log_printf (psf, "Header-less OKI Dialogic ADPCM encoded file.\n") ; + psf_log_printf (psf, "Setting up for 8kHz, mono, Vox ADPCM.\n") ; + + psf->read_short = vox_read_s ; + psf->read_int = vox_read_i ; + psf->read_float = vox_read_f ; + psf->read_double = vox_read_d ; + } ; + + /* Standard sample rate chennels etc. */ + if (psf->sf.samplerate < 1) + psf->sf.samplerate = 8000 ; + psf->sf.channels = 1 ; + + psf->sf.frames = psf->filelength * 2 ; + + psf->sf.seekable = SF_FALSE ; + psf->codec_close = codec_close ; + + /* Seek back to start of data. */ + if (psf_fseek (psf, 0 , SEEK_SET) == -1) + return SFE_BAD_SEEK ; + + ima_oki_adpcm_init (pvox, IMA_OKI_ADPCM_TYPE_OKI) ; + + return 0 ; +} /* vox_adpcm_init */ + +/*============================================================================== +*/ + +static int +vox_read_block (SF_PRIVATE *psf, IMA_OKI_ADPCM *pvox, short *ptr, int len) +{ int indx = 0, k ; + + while (indx < len) + { pvox->code_count = (len - indx > IMA_OKI_ADPCM_PCM_LEN) ? IMA_OKI_ADPCM_CODE_LEN : (len - indx + 1) / 2 ; + + if ((k = psf_fread (pvox->codes, 1, pvox->code_count, psf)) != pvox->code_count) + { if (psf_ftell (psf) != psf->filelength) + psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pvox->code_count) ; + if (k == 0) + break ; + } ; + + pvox->code_count = k ; + + ima_oki_adpcm_decode_block (pvox) ; + + memcpy (&(ptr [indx]), pvox->pcm, pvox->pcm_count * sizeof (short)) ; + indx += pvox->pcm_count ; + } ; + + return indx ; +} /* vox_read_block */ + + +static sf_count_t +vox_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + int readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + while (len > 0) + { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = vox_read_block (psf, pvox, ptr, readcount) ; + + total += count ; + len -= count ; + if (count != readcount) + break ; + } ; + + return total ; +} /* vox_read_s */ + +static sf_count_t +vox_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = vox_read_block (psf, pvox, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = ((int) sptr [k]) << 16 ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* vox_read_i */ + +static sf_count_t +vox_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = vox_read_block (psf, pvox, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (float) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* vox_read_f */ + +static sf_count_t +vox_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, readcount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { readcount = (len >= bufferlen) ? bufferlen : (int) len ; + count = vox_read_block (psf, pvox, sptr, readcount) ; + for (k = 0 ; k < readcount ; k++) + ptr [total + k] = normfact * (double) (sptr [k]) ; + total += count ; + len -= readcount ; + if (count != readcount) + break ; + } ; + + return total ; +} /* vox_read_d */ + +/*------------------------------------------------------------------------------ +*/ + +static int +vox_write_block (SF_PRIVATE *psf, IMA_OKI_ADPCM *pvox, const short *ptr, int len) +{ int indx = 0, k ; + + while (indx < len) + { pvox->pcm_count = (len - indx > IMA_OKI_ADPCM_PCM_LEN) ? IMA_OKI_ADPCM_PCM_LEN : len - indx ; + + memcpy (pvox->pcm, &(ptr [indx]), pvox->pcm_count * sizeof (short)) ; + + ima_oki_adpcm_encode_block (pvox) ; + + if ((k = psf_fwrite (pvox->codes, 1, pvox->code_count, psf)) != pvox->code_count) + psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pvox->code_count) ; + + indx += pvox->pcm_count ; + } ; + + return indx ; +} /* vox_write_block */ + +static sf_count_t +vox_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + int writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + while (len) + { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; + + count = vox_write_block (psf, pvox, ptr, writecount) ; + + total += count ; + len -= count ; + if (count != writecount) + break ; + } ; + + return total ; +} /* vox_write_s */ + +static sf_count_t +vox_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = ptr [total + k] >> 16 ; + count = vox_write_block (psf, pvox, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* vox_write_i */ + +static sf_count_t +vox_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + float normfact ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrintf (normfact * ptr [total + k]) ; + count = vox_write_block (psf, pvox, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* vox_write_f */ + +static sf_count_t +vox_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ IMA_OKI_ADPCM *pvox ; + short *sptr ; + int k, bufferlen, writecount, count ; + sf_count_t total = 0 ; + double normfact ; + + if (! psf->codec_data) + return 0 ; + pvox = (IMA_OKI_ADPCM*) psf->codec_data ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + sptr = psf->u.sbuf ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (len > 0) + { writecount = (len >= bufferlen) ? bufferlen : (int) len ; + for (k = 0 ; k < writecount ; k++) + sptr [k] = lrint (normfact * ptr [total + k]) ; + count = vox_write_block (psf, pvox, sptr, writecount) ; + total += count ; + len -= writecount ; + if (count != writecount) + break ; + } ; + + return total ; +} /* vox_write_d */ + diff --git a/src/w64.c b/src/w64.c new file mode 100644 index 0000000..d561906 --- /dev/null +++ b/src/w64.c @@ -0,0 +1,639 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <time.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" + +/*------------------------------------------------------------------------------ +** W64 files use 16 byte markers as opposed to the four byte marker of +** WAV files. +** For comparison purposes, an integer is required, so make an integer +** hash for the 16 bytes using MAKE_HASH16 macro, but also create a 16 +** byte array containing the complete 16 bytes required when writing the +** header. +*/ + +#define MAKE_HASH16(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ + ( (x0) ^ ((x1) << 1) ^ ((x2) << 2) ^ ((x3) << 3) ^ \ + ((x4) << 4) ^ ((x5) << 5) ^ ((x6) << 6) ^ ((x7) << 7) ^ \ + ((x8) << 8) ^ ((x9) << 9) ^ ((xa) << 10) ^ ((xb) << 11) ^ \ + ((xc) << 12) ^ ((xd) << 13) ^ ((xe) << 14) ^ ((xf) << 15) ) + +#define MAKE_MARKER16(name,x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ + static unsigned char name [16] = { (x0), (x1), (x2), (x3), (x4), (x5), \ + (x6), (x7), (x8), (x9), (xa), (xb), (xc), (xd), (xe), (xf) } + +#define riff_HASH16 MAKE_HASH16 ('r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, \ + 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) + +#define wave_HASH16 MAKE_HASH16 ('w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, \ + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define fmt_HASH16 MAKE_HASH16 ('f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, \ + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define fact_HASH16 MAKE_HASH16 ('f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, \ + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define data_HASH16 MAKE_HASH16 ('d', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, \ + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define ACID_HASH16 MAKE_HASH16 (0x6D, 0x07, 0x1C, 0xEA, 0xA3, 0xEF, 0x78, 0x4C, \ + 0x90, 0x57, 0x7F, 0x79, 0xEE, 0x25, 0x2A, 0xAE) + +#define levl_HASH16 MAKE_HASH16 (0x6c, 0x65, 0x76, 0x6c, 0xf3, 0xac, 0xd3, 0x11, \ + 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define list_HASH16 MAKE_HASH16 (0x6C, 0x69, 0x73, 0x74, 0x2F, 0x91, 0xCF, 0x11, \ + 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) + +#define junk_HASH16 MAKE_HASH16 (0x6A, 0x75, 0x6E, 0x6b, 0xF3, 0xAC, 0xD3, 0x11, \ + 0x8C, 0xD1, 0x00, 0xC0, 0x4f, 0x8E, 0xDB, 0x8A) + +#define bext_MARKER MAKE_HASH16 (0x62, 0x65, 0x78, 0x74, 0xf3, 0xac, 0xd3, 0xaa, \ + 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + +#define MARKER_HASH16 MAKE_HASH16 (0x56, 0x62, 0xf7, 0xab, 0x2d, 0x39, 0xd2, 0x11, \ + 0x86, 0xc7, 0x00, 0xc0, 0x4f, 0x8e, 0xdb, 0x8a) + +#define SUMLIST_HASH16 MAKE_HASH16 (0xBC, 0x94, 0x5F, 0x92, 0x5A, 0x52, 0xD2, 0x11, \ + 0x86, 0xDC, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) + + +MAKE_MARKER16 (riff_MARKER16, 'r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, + 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) ; + + +MAKE_MARKER16 (wave_MARKER16, 'w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; + +MAKE_MARKER16 (fmt_MARKER16, 'f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; + +MAKE_MARKER16 (fact_MARKER16, 'f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; + +MAKE_MARKER16 (data_MARKER16, 'd', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, + 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; + +enum +{ HAVE_riff = 0x01, + HAVE_wave = 0x02, + HAVE_fmt = 0x04, + HAVE_fact = 0x08, + HAVE_data = 0x20 +} ; + +/*------------------------------------------------------------------------------ + * Private static functions. + */ + +static int w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ; +static int w64_write_header (SF_PRIVATE *psf, int calc_length) ; +static int w64_close (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +w64_open (SF_PRIVATE *psf) +{ WAV_PRIVATE * wpriv ; + int subformat, error, blockalign = 0, framesperblock = 0 ; + + if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + psf->container_data = wpriv ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR &&psf->filelength > 0)) + { if ((error = w64_read_header (psf, &blockalign, &framesperblock))) + return error ; + } ; + + if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_W64) + return SFE_BAD_OPEN_FORMAT ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) + { blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = -1 ; + + /* FIXME : This block must go */ + psf->filelength = SF_COUNT_MAX ; + psf->datalength = psf->filelength ; + if (psf->sf.frames <= 0) + psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ; + /* EMXIF : This block must go */ + } ; + + if ((error = w64_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = w64_write_header ; + } ; + + psf->container_close = w64_close ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + case SF_FORMAT_IMA_ADPCM : + error = wav_w64_ima_init (psf, blockalign, framesperblock) ; + break ; + + case SF_FORMAT_MS_ADPCM : + error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ; + break ; + /* Lite remove end */ + + case SF_FORMAT_GSM610 : + error = gsm610_init (psf) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + return error ; +} /* w64_open */ + +/*========================================================================= +** Private functions. +*/ + +static int +w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) +{ WAV_PRIVATE *wpriv ; + WAV_FMT *wav_fmt ; + int dword = 0, marker, format = 0 ; + sf_count_t chunk_size, bytesread = 0 ; + int parsestage = 0, error, done = 0 ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + wav_fmt = &wpriv->wav_fmt ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "p", 0) ; + + while (! done) + { /* Each new chunk must start on an 8 byte boundary, so jump if needed. */ + if (psf->headindex & 0x7) + psf_binheader_readf (psf, "j", 8 - (psf->headindex & 0x7)) ; + + /* Generate hash of 16 byte marker. */ + bytesread += psf_binheader_readf (psf, "h", &marker) ; + chunk_size = 0 ; + + switch (marker) + { case riff_HASH16 : + if (parsestage) + return SFE_W64_NO_RIFF ; + + bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; + + if (psf->filelength != chunk_size) + psf_log_printf (psf, "riff : %D (should be %D)\n", chunk_size, psf->filelength) ; + else + psf_log_printf (psf, "riff : %D\n", chunk_size) ; + + parsestage |= HAVE_riff ; + break ; + + case ACID_HASH16: + psf_log_printf (psf, "Looks like an ACID file. Exiting.\n") ; + return SFE_UNIMPLEMENTED ; + + case wave_HASH16 : + if ((parsestage & HAVE_riff) != HAVE_riff) + return SFE_W64_NO_WAVE ; + psf_log_printf (psf, "wave\n") ; + parsestage |= HAVE_wave ; + break ; + + case fmt_HASH16 : + if ((parsestage & (HAVE_riff | HAVE_wave)) != (HAVE_riff | HAVE_wave)) + return SFE_WAV_NO_FMT ; + + bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, " fmt : %D\n", chunk_size) ; + + /* size of 16 byte marker and 8 byte chunk_size value. */ + chunk_size -= 24 ; + + if ((error = wav_w64_read_fmt_chunk (psf, (int) chunk_size))) + return error ; + + if (chunk_size % 8) + psf_binheader_readf (psf, "j", 8 - (chunk_size % 8)) ; + + format = wav_fmt->format ; + parsestage |= HAVE_fmt ; + break ; + + case fact_HASH16: + { sf_count_t frames ; + + psf_binheader_readf (psf, "e88", &chunk_size, &frames) ; + psf_log_printf (psf, " fact : %D\n frames : %D\n", + chunk_size, frames) ; + } ; + break ; + + + case data_HASH16 : + if ((parsestage & (HAVE_riff | HAVE_wave | HAVE_fmt)) != (HAVE_riff | HAVE_wave | HAVE_fmt)) + return SFE_W64_NO_DATA ; + + psf_binheader_readf (psf, "e8", &chunk_size) ; + + psf->dataoffset = psf_ftell (psf) ; + + psf->datalength = chunk_size - 24 ; + + if (chunk_size % 8) + chunk_size += 8 - (chunk_size % 8) ; + + psf_log_printf (psf, "data : %D\n", chunk_size) ; + + parsestage |= HAVE_data ; + + if (! psf->sf.seekable) + break ; + + /* Seek past data and continue reading header. */ + psf_fseek (psf, chunk_size, SEEK_CUR) ; + break ; + + case levl_HASH16 : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "levl : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + case list_HASH16 : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "list : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + case junk_HASH16 : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "junk : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + case bext_MARKER : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "bext : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + case MARKER_HASH16 : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "marker : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + case SUMLIST_HASH16 : + psf_binheader_readf (psf, "e8", &chunk_size) ; + psf_log_printf (psf, "summary list : %D\n", chunk_size) ; + dword = chunk_size ; + psf_binheader_readf (psf, "j", dword - 24) ; + break ; + + default : + psf_log_printf (psf, "*** Unknown chunk marker : %X. Exiting parser.\n", marker) ; + done = SF_TRUE ; + break ; + } ; /* switch (dword) */ + + if (psf->sf.seekable == 0 && (parsestage & HAVE_data)) + break ; + + if (psf_ftell (psf) >= (psf->filelength - (2 * SIGNED_SIZEOF (dword)))) + break ; + } ; /* while (1) */ + + if (psf->dataoffset <= 0) + return SFE_W64_NO_DATA ; + + psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ + + if (psf_ftell (psf) != psf->dataoffset) + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (psf->blockwidth) + { if (psf->filelength - psf->dataoffset < psf->datalength) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + else + psf->sf.frames = psf->datalength / psf->blockwidth ; + } ; + + switch (format) + { case WAVE_FORMAT_PCM : + case WAVE_FORMAT_EXTENSIBLE : + /* extensible might be FLOAT, MULAW, etc as well! */ + psf->sf.format = SF_FORMAT_W64 | u_bitwidth_to_subformat (psf->bytewidth * 8) ; + break ; + + case WAVE_FORMAT_MULAW : + psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ULAW) ; + break ; + + case WAVE_FORMAT_ALAW : + psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ALAW) ; + break ; + + case WAVE_FORMAT_MS_ADPCM : + psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ; + *blockalign = wav_fmt->msadpcm.blockalign ; + *framesperblock = wav_fmt->msadpcm.samplesperblock ; + break ; + + case WAVE_FORMAT_IMA_ADPCM : + psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_IMA_ADPCM) ; + *blockalign = wav_fmt->ima.blockalign ; + *framesperblock = wav_fmt->ima.samplesperblock ; + break ; + + case WAVE_FORMAT_GSM610 : + psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_GSM610) ; + break ; + + case WAVE_FORMAT_IEEE_FLOAT : + psf->sf.format = SF_FORMAT_W64 ; + psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + return 0 ; +} /* w64_read_header */ + +static int +w64_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t fmt_size, current ; + size_t fmt_pad = 0 ; + int subformat, add_fact_chunk = SF_FALSE ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* riff marker, length, wave and 'fmt ' markers. */ + psf_binheader_writef (psf, "eh8hh", riff_MARKER16, psf->filelength, wave_MARKER16, fmt_MARKER16) ; + + subformat = SF_CODEC (psf->sf.format) ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + break ; + + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ULAW : + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ALAW : + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; + + add_fact_chunk = SF_TRUE ; + break ; + + /* Lite remove start */ + case SF_FORMAT_IMA_ADPCM : + { int blockalign, framesperblock, bytespersec ; + + blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ; + bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; + + /* fmt chunk. */ + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : size, WAV format type, channels. */ + psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_IMA_ADPCM, psf->sf.channels) ; + + /* fmt : samplerate, bytespersec. */ + psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "e2222", blockalign, 4, 2, framesperblock) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_MS_ADPCM : + { int blockalign, framesperblock, bytespersec, extrabytes ; + + blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ; + bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; + + /* fmt chunk. */ + extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ; + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : size, W64 format type, channels. */ + psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ; + + /* fmt : samplerate, bytespersec. */ + psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "e22222", blockalign, 4, extrabytes, framesperblock, 7) ; + + msadpcm_write_adapt_coeffs (psf) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + /* Lite remove end */ + + case SF_FORMAT_GSM610 : + { int bytespersec ; + + bytespersec = (psf->sf.samplerate * WAV_W64_GSM610_BLOCKSIZE) / WAV_W64_GSM610_SAMPLES ; + + /* fmt chunk. */ + fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; + fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; + fmt_size += fmt_pad ; + + /* fmt : size, WAV format type, channels. */ + psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ; + + /* fmt : samplerate, bytespersec. */ + psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "e2222", WAV_W64_GSM610_BLOCKSIZE, 0, 2, WAV_W64_GSM610_SAMPLES) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + /* Pad to 8 bytes with zeros. */ + if (fmt_pad > 0) + psf_binheader_writef (psf, "z", fmt_pad) ; + + if (add_fact_chunk) + psf_binheader_writef (psf, "eh88", fact_MARKER16, (sf_count_t) (16 + 8 + 8), psf->sf.frames) ; + + psf_binheader_writef (psf, "eh8", data_MARKER16, psf->datalength + 24) ; + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* w64_write_header */ + +static int +w64_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + w64_write_header (psf, SF_TRUE) ; + + return 0 ; +} /* w64_close */ + diff --git a/src/wav.c b/src/wav.c new file mode 100644 index 0000000..f863096 --- /dev/null +++ b/src/wav.c @@ -0,0 +1,1820 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2004-2005 David Viens <davidv@plogue.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <time.h> +#include <inttypes.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" + +/*------------------------------------------------------------------------------ + * Macros to handle big/little endian issues. + */ + +#define RIFF_MARKER (MAKE_MARKER ('R', 'I', 'F', 'F')) +#define RIFX_MARKER (MAKE_MARKER ('R', 'I', 'F', 'X')) +#define WAVE_MARKER (MAKE_MARKER ('W', 'A', 'V', 'E')) +#define fmt_MARKER (MAKE_MARKER ('f', 'm', 't', ' ')) +#define data_MARKER (MAKE_MARKER ('d', 'a', 't', 'a')) +#define fact_MARKER (MAKE_MARKER ('f', 'a', 'c', 't')) +#define PEAK_MARKER (MAKE_MARKER ('P', 'E', 'A', 'K')) + +#define cue_MARKER (MAKE_MARKER ('c', 'u', 'e', ' ')) +#define LIST_MARKER (MAKE_MARKER ('L', 'I', 'S', 'T')) +#define slnt_MARKER (MAKE_MARKER ('s', 'l', 'n', 't')) +#define wavl_MARKER (MAKE_MARKER ('w', 'a', 'v', 'l')) +#define INFO_MARKER (MAKE_MARKER ('I', 'N', 'F', 'O')) +#define plst_MARKER (MAKE_MARKER ('p', 'l', 's', 't')) +#define adtl_MARKER (MAKE_MARKER ('a', 'd', 't', 'l')) +#define labl_MARKER (MAKE_MARKER ('l', 'a', 'b', 'l')) +#define ltxt_MARKER (MAKE_MARKER ('l', 't', 'x', 't')) +#define note_MARKER (MAKE_MARKER ('n', 'o', 't', 'e')) +#define smpl_MARKER (MAKE_MARKER ('s', 'm', 'p', 'l')) +#define bext_MARKER (MAKE_MARKER ('b', 'e', 'x', 't')) +#define iXML_MARKER (MAKE_MARKER ('i', 'X', 'M', 'L')) +#define levl_MARKER (MAKE_MARKER ('l', 'e', 'v', 'l')) +#define MEXT_MARKER (MAKE_MARKER ('M', 'E', 'X', 'T')) +#define DISP_MARKER (MAKE_MARKER ('D', 'I', 'S', 'P')) +#define acid_MARKER (MAKE_MARKER ('a', 'c', 'i', 'd')) +#define strc_MARKER (MAKE_MARKER ('s', 't', 'r', 'c')) +#define PAD_MARKER (MAKE_MARKER ('P', 'A', 'D', ' ')) +#define afsp_MARKER (MAKE_MARKER ('a', 'f', 's', 'p')) +#define clm_MARKER (MAKE_MARKER ('c', 'l', 'm', ' ')) +#define elmo_MARKER (MAKE_MARKER ('e', 'l', 'm', 'o')) +#define cart_MARKER (MAKE_MARKER ('c', 'a', 'r', 't')) +#define FLLR_MARKER (MAKE_MARKER ('F', 'L', 'L', 'R')) + +#define exif_MARKER (MAKE_MARKER ('e', 'x', 'i', 'f')) +#define ever_MARKER (MAKE_MARKER ('e', 'v', 'e', 'r')) +#define etim_MARKER (MAKE_MARKER ('e', 't', 'i', 'm')) +#define ecor_MARKER (MAKE_MARKER ('e', 'c', 'o', 'r')) +#define emdl_MARKER (MAKE_MARKER ('e', 'm', 'd', 'l')) +#define emnt_MARKER (MAKE_MARKER ('e', 'm', 'n', 't')) +#define erel_MARKER (MAKE_MARKER ('e', 'r', 'e', 'l')) +#define eucm_MARKER (MAKE_MARKER ('e', 'u', 'c', 'm')) + +#define ISFT_MARKER (MAKE_MARKER ('I', 'S', 'F', 'T')) +#define ICRD_MARKER (MAKE_MARKER ('I', 'C', 'R', 'D')) +#define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P')) +#define IARL_MARKER (MAKE_MARKER ('I', 'A', 'R', 'L')) +#define IART_MARKER (MAKE_MARKER ('I', 'A', 'R', 'T')) +#define INAM_MARKER (MAKE_MARKER ('I', 'N', 'A', 'M')) +#define IENG_MARKER (MAKE_MARKER ('I', 'E', 'N', 'G')) +#define IGNR_MARKER (MAKE_MARKER ('I', 'G', 'N', 'R')) +#define ICOP_MARKER (MAKE_MARKER ('I', 'C', 'O', 'P')) +#define IPRD_MARKER (MAKE_MARKER ('I', 'P', 'R', 'D')) +#define ISRC_MARKER (MAKE_MARKER ('I', 'S', 'R', 'C')) +#define ISBJ_MARKER (MAKE_MARKER ('I', 'S', 'B', 'J')) +#define ICMT_MARKER (MAKE_MARKER ('I', 'C', 'M', 'T')) + +/* Weird WAVPACK marker which can show up at the start of the DATA section. */ +#define wvpk_MARKER (MAKE_MARKER ('w', 'v', 'p', 'k')) +#define OggS_MARKER (MAKE_MARKER ('O', 'g', 'g', 'S')) + +#define WAV_PEAK_CHUNK_SIZE(ch) (2 * sizeof (int) + ch * (sizeof (float) + sizeof (int))) +#define WAV_BEXT_MIN_CHUNK_SIZE 602 +#define WAV_BEXT_MAX_CHUNK_SIZE (10 * 1024) + +enum +{ HAVE_RIFF = 0x01, + HAVE_WAVE = 0x02, + HAVE_fmt = 0x04, + HAVE_fact = 0x08, + HAVE_PEAK = 0x10, + HAVE_data = 0x20, + HAVE_other = 0x80000000 +} ; + + + +/* known WAVEFORMATEXTENSIBLE GUIDS */ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM = +{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM = +{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT = +{ 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW = +{ 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW = +{ 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +/* +** the next two are from +** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html +*/ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM = +{ 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT = +{ 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 } +} ; + + +#if 0 +/* maybe interesting one day to read the following through sf_read_raw */ +/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX = +{ 0x8312B9C2, 0x2E6E, 0x11d4, { 0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 } +} ; +#endif + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ; +static int wav_write_header (SF_PRIVATE *psf, int calc_length) ; + +static int wav_write_tailer (SF_PRIVATE *psf) ; +static void wav_write_strings (SF_PRIVATE *psf, int location) ; +static int wav_command (SF_PRIVATE *psf, int command, void *data, int datasize) ; +static int wav_close (SF_PRIVATE *psf) ; + +static int wav_subchunk_parse (SF_PRIVATE *psf, int chunk) ; +static int exif_subchunk_parse (SF_PRIVATE *psf, unsigned int length) ; +static int wav_read_smpl_chunk (SF_PRIVATE *psf, unsigned int chunklen) ; +static int wav_read_acid_chunk (SF_PRIVATE *psf, unsigned int chunklen) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +wav_open (SF_PRIVATE *psf) +{ WAV_PRIVATE * wpriv ; + int format, subformat, error, blockalign = 0, framesperblock = 0 ; + + if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + psf->container_data = wpriv ; + + wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ; + psf->str_flags = SF_STR_ALLOW_START | SF_STR_ALLOW_END ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = wav_read_header (psf, &blockalign, &framesperblock))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if (psf->is_pipe) + return SFE_NO_PIPE_WRITE ; + + wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ; + + format = SF_CONTAINER (psf->sf.format) ; + if (format != SF_FORMAT_WAV && format != SF_FORMAT_WAVEX) + return SFE_BAD_OPEN_FORMAT ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + /* RIFF WAVs are little-endian, RIFX WAVs are big-endian, default to little */ + psf->endian = SF_ENDIAN (psf->sf.format) ; + if (CPU_IS_BIG_ENDIAN && psf->endian == SF_ENDIAN_CPU) + psf->endian = SF_ENDIAN_BIG ; + else if (psf->endian != SF_ENDIAN_BIG) + psf->endian = SF_ENDIAN_LITTLE ; + + if (psf->file.mode != SFM_RDWR || psf->filelength < 44) + { psf->filelength = 0 ; + psf->datalength = 0 ; + psf->dataoffset = 0 ; + psf->sf.frames = 0 ; + } ; + + if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) + { blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = -1 ; /* Corrected later. */ + } ; + + /* By default, add the peak chunk to floating point files. Default behaviour + ** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE). + */ + if (psf->file.mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE)) + { if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + psf->peak_info->peak_loc = SF_PEAK_START ; + } ; + + psf->write_header = wav_write_header ; + } ; + + psf->container_close = wav_close ; + psf->command = wav_command ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + error = pcm_init (psf) ; + break ; + + case SF_FORMAT_ULAW : + error = ulaw_init (psf) ; + break ; + + case SF_FORMAT_ALAW : + error = alaw_init (psf) ; + break ; + + /* Lite remove start */ + case SF_FORMAT_FLOAT : + error = float32_init (psf) ; + break ; + + case SF_FORMAT_DOUBLE : + error = double64_init (psf) ; + break ; + + case SF_FORMAT_IMA_ADPCM : + error = wav_w64_ima_init (psf, blockalign, framesperblock) ; + break ; + + case SF_FORMAT_MS_ADPCM : + error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ; + break ; + + case SF_FORMAT_G721_32 : + error = g72x_init (psf) ; + break ; + /* Lite remove end */ + + case SF_FORMAT_GSM610 : + error = gsm610_init (psf) ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->filelength == 0)) + return psf->write_header (psf, SF_FALSE) ; + + return error ; +} /* wav_open */ + +/*========================================================================= +** Private functions. +*/ + +static int +wav_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) +{ WAV_PRIVATE *wpriv ; + WAV_FMT *wav_fmt ; + FACT_CHUNK fact_chunk ; + unsigned dword = 0, marker, RIFFsize = 0, done = 0 ; + int parsestage = 0, error, format = 0 ; + char *cptr ; + + if (psf->filelength > SF_PLATFORM_S64 (0xffffffff)) + psf_log_printf (psf, "Warning : filelength > 0xffffffff. This is bad!!!!\n") ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + wav_fmt = &wpriv->wav_fmt ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "p", 0) ; + + while (! done) + { psf_binheader_readf (psf, "m", &marker) ; + + switch (marker) + { case RIFF_MARKER : + case RIFX_MARKER : + if (parsestage) + return SFE_WAV_NO_RIFF ; + + parsestage |= HAVE_RIFF ; + + /* RIFX signifies big-endian format for all header and data + ** to prevent lots of code copying here, we'll set the psf->rwf_endian + ** flag once here, and never specify endian-ness for all other header ops + */ + if (marker == RIFF_MARKER) + psf->rwf_endian = SF_ENDIAN_LITTLE ; + else + psf->rwf_endian = SF_ENDIAN_BIG ; + + psf_binheader_readf (psf, "4", &RIFFsize) ; + + if (psf->fileoffset > 0 && psf->filelength > RIFFsize + 8) + { /* Set file length. */ + psf->filelength = RIFFsize + 8 ; + if (marker == RIFF_MARKER) + psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ; + else + psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ; + } + else if (psf->filelength < RIFFsize + 2 * SIGNED_SIZEOF (dword)) + { if (marker == RIFF_MARKER) + psf_log_printf (psf, "RIFF : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (dword)) ; + else + psf_log_printf (psf, "RIFX : %u (should be %D)\n", RIFFsize, psf->filelength - 2 * SIGNED_SIZEOF (dword)) ; + + RIFFsize = dword ; + } + else + { if (marker == RIFF_MARKER) + psf_log_printf (psf, "RIFF : %u\n", RIFFsize) ; + else + psf_log_printf (psf, "RIFX : %u\n", RIFFsize) ; + } ; + break ; + + case WAVE_MARKER : + if ((parsestage & HAVE_RIFF) != HAVE_RIFF) + return SFE_WAV_NO_WAVE ; + parsestage |= HAVE_WAVE ; + + psf_log_printf (psf, "WAVE\n") ; + break ; + + case fmt_MARKER : + if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE)) + return SFE_WAV_NO_FMT ; + + /* If this file has a SECOND fmt chunk, I don't want to know about it. */ + if (parsestage & HAVE_fmt) + break ; + + parsestage |= HAVE_fmt ; + + psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "fmt : %d\n", dword) ; + + if ((error = wav_w64_read_fmt_chunk (psf, dword))) + return error ; + + format = wav_fmt->format ; + break ; + + case data_MARKER : + if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) + return SFE_WAV_NO_DATA ; + + if (psf->file.mode == SFM_RDWR && (parsestage & HAVE_other) != 0) + return SFE_RDWR_BAD_HEADER ; + + parsestage |= HAVE_data ; + + psf_binheader_readf (psf, "4", &dword) ; + + psf->datalength = dword ; + psf->dataoffset = psf_ftell (psf) ; + + if (psf->dataoffset > 0) + { if (dword == 0 && RIFFsize == 8 && psf->filelength > 44) + { psf_log_printf (psf, "*** Looks like a WAV file which wasn't closed properly. Fixing it.\n") ; + psf->datalength = psf->filelength - psf->dataoffset ; + } ; + + if (psf->datalength > psf->filelength - psf->dataoffset) + { psf_log_printf (psf, "data : %D (should be %D)\n", psf->datalength, psf->filelength - psf->dataoffset) ; + psf->datalength = psf->filelength - psf->dataoffset ; + } + else + psf_log_printf (psf, "data : %D\n", psf->datalength) ; + + /* Only set dataend if there really is data at the end. */ + if (psf->datalength + psf->dataoffset < psf->filelength) + psf->dataend = psf->datalength + psf->dataoffset ; + + if (format == WAVE_FORMAT_MS_ADPCM && psf->datalength % 2) + { psf->datalength ++ ; + psf_log_printf (psf, "*** Data length odd. Increasing it by 1.\n") ; + } ; + } ; + + if (! psf->sf.seekable || psf->dataoffset < 0) + break ; + + /* Seek past data and continue reading header. */ + psf_fseek (psf, psf->datalength, SEEK_CUR) ; + + if (psf_ftell (psf) != psf->datalength + psf->dataoffset) + psf_log_printf (psf, "*** psf_fseek past end error ***\n") ; + break ; + + case fact_MARKER : + if ((parsestage & (HAVE_RIFF | HAVE_WAVE)) != (HAVE_RIFF | HAVE_WAVE)) + return SFE_WAV_BAD_FACT ; + + parsestage |= HAVE_fact ; + + if ((parsestage & HAVE_fmt) != HAVE_fmt) + psf_log_printf (psf, "*** Should have 'fmt ' chunk before 'fact'\n") ; + + psf_binheader_readf (psf, "44", &dword, & (fact_chunk.frames)) ; + + if (dword > SIGNED_SIZEOF (fact_chunk)) + psf_binheader_readf (psf, "j", (int) (dword - SIGNED_SIZEOF (fact_chunk))) ; + + if (dword) + psf_log_printf (psf, "%M : %d\n", marker, dword) ; + else + psf_log_printf (psf, "%M : %d (should not be zero)\n", marker, dword) ; + + psf_log_printf (psf, " frames : %d\n", fact_chunk.frames) ; + break ; + + case PEAK_MARKER : + if ((parsestage & (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) != (HAVE_RIFF | HAVE_WAVE | HAVE_fmt)) + return SFE_WAV_PEAK_B4_FMT ; + + parsestage |= HAVE_PEAK ; + + psf_binheader_readf (psf, "4", &dword) ; + + psf_log_printf (psf, "%M : %d\n", marker, dword) ; + if (dword != WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) + { psf_binheader_readf (psf, "j", dword) ; + psf_log_printf (psf, "*** File PEAK chunk size doesn't fit with number of channels (%d).\n", psf->sf.channels) ; + return SFE_WAV_BAD_PEAK ; + } ; + + if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL) + return SFE_MALLOC_FAILED ; + + /* read in rest of PEAK chunk. */ + psf_binheader_readf (psf, "44", & (psf->peak_info->version), & (psf->peak_info->timestamp)) ; + + if (psf->peak_info->version != 1) + psf_log_printf (psf, " version : %d *** (should be version 1)\n", psf->peak_info->version) ; + else + psf_log_printf (psf, " version : %d\n", psf->peak_info->version) ; + + psf_log_printf (psf, " time stamp : %d\n", psf->peak_info->timestamp) ; + psf_log_printf (psf, " Ch Position Value\n") ; + + cptr = psf->u.cbuf ; + for (dword = 0 ; dword < (unsigned) psf->sf.channels ; dword++) + { float value ; + unsigned int position ; + + psf_binheader_readf (psf, "f4", &value, &position) ; + psf->peak_info->peaks [dword].value = value ; + psf->peak_info->peaks [dword].position = position ; + + snprintf (cptr, sizeof (psf->u.cbuf), " %2d %-12" PRId64 " %g\n", + dword, psf->peak_info->peaks [dword].position, psf->peak_info->peaks [dword].value) ; + cptr [sizeof (psf->u.cbuf) - 1] = 0 ; + psf_log_printf (psf, "%s", cptr) ; + } ; + + psf->peak_info->peak_loc = ((parsestage & HAVE_data) == 0) ? SF_PEAK_START : SF_PEAK_END ; + break ; + + case cue_MARKER : + parsestage |= HAVE_other ; + + { unsigned bytesread, cue_count ; + int id, position, chunk_id, chunk_start, block_start, offset ; + + bytesread = psf_binheader_readf (psf, "44", &dword, &cue_count) ; + bytesread -= 4 ; /* Remove bytes for first dword. */ + psf_log_printf (psf, "%M : %u\n", marker, dword) ; + + if (cue_count > 10) + { psf_log_printf (psf, " Count : %d (skipping)\n", cue_count) ; + psf_binheader_readf (psf, "j", cue_count * 24) ; + break ; + } ; + + psf_log_printf (psf, " Count : %d\n", cue_count) ; + + while (cue_count) + { bytesread += psf_binheader_readf (psf, "444444", &id, &position, + &chunk_id, &chunk_start, &block_start, &offset) ; + psf_log_printf (psf, " Cue ID : %2d" + " Pos : %5u Chunk : %M" + " Chk Start : %d Blk Start : %d" + " Offset : %5d\n", + id, position, chunk_id, chunk_start, block_start, offset) ; + cue_count -- ; + } ; + + if (bytesread != dword) + { psf_log_printf (psf, "**** Chunk size weirdness (%d != %d)\n", dword, bytesread) ; + psf_binheader_readf (psf, "j", dword - bytesread) ; + } ; + } ; + break ; + + case smpl_MARKER : + parsestage |= HAVE_other ; + + psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "smpl : %u\n", dword) ; + + if ((error = wav_read_smpl_chunk (psf, dword))) + return error ; + break ; + + case acid_MARKER : + parsestage |= HAVE_other ; + + psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "acid : %u\n", dword) ; + + if ((error = wav_read_acid_chunk (psf, dword))) + return error ; + break ; + + case INFO_MARKER : + case LIST_MARKER : + parsestage |= HAVE_other ; + + if ((error = wav_subchunk_parse (psf, marker)) != 0) + return error ; + break ; + + case bext_MARKER : + /* + The 'bext' chunk can actually be updated, so don't need to set this. + parsestage |= HAVE_other ; + */ + psf_binheader_readf (psf, "4", &dword) ; + if ((error = wav_read_bext_chunk (psf, dword))) + return error ; + break ; + + case PAD_MARKER : + /* + We can eat into a 'PAD ' chunk if we need to. + parsestage |= HAVE_other ; + */ + psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "%M : %u\n", marker, dword) ; + dword += (dword & 1) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + + case iXML_MARKER : /* See http://en.wikipedia.org/wiki/IXML */ + case strc_MARKER : /* Multiple of 32 bytes. */ + case afsp_MARKER : + case clm_MARKER : + case elmo_MARKER : + case cart_MARKER : + case levl_MARKER : + case plst_MARKER : + case DISP_MARKER : + case MEXT_MARKER : + case FLLR_MARKER : + psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "%M : %u\n", marker, dword) ; + dword += (dword & 1) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + + default : + if (psf_isprint ((marker >> 24) & 0xFF) && psf_isprint ((marker >> 16) & 0xFF) + && psf_isprint ((marker >> 8) & 0xFF) && psf_isprint (marker & 0xFF)) + { psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, "*** %M : %d (unknown marker)\n", marker, dword) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + if (psf_ftell (psf) & 0x03) + { psf_log_printf (psf, " Unknown chunk marker at position %d. Resynching.\n", dword - 4) ; + psf_binheader_readf (psf, "j", -3) ; + /* File is too messed up so we prevent editing in RDWR mode here. */ + parsestage |= HAVE_other ; + break ; + } ; + psf_log_printf (psf, "*** Unknown chunk marker (%X) at position %D. Exiting parser.\n", marker, psf_ftell (psf) - 4) ; + done = SF_TRUE ; + break ; + } ; /* switch (dword) */ + + if (! psf->sf.seekable && (parsestage & HAVE_data)) + break ; + + if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (dword)) + { psf_log_printf (psf, "End\n") ; + break ; + } ; + } ; /* while (1) */ + + if (psf->dataoffset <= 0) + return SFE_WAV_NO_DATA ; + + /* WAVs can be little or big endian */ + psf->endian = psf->rwf_endian ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (psf->is_pipe == 0) + { /* + ** Check for 'wvpk' at the start of the DATA section. Not able to + ** handle this. + */ + psf_binheader_readf (psf, "4", &marker) ; + if (marker == wvpk_MARKER || marker == OggS_MARKER) + return SFE_WAV_WVPK_DATA ; + } ; + + /* Seek to start of DATA section. */ + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (psf->blockwidth) + { if (psf->filelength - psf->dataoffset < psf->datalength) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + else + psf->sf.frames = psf->datalength / psf->blockwidth ; + } ; + + switch (format) + { case WAVE_FORMAT_EXTENSIBLE : + if (psf->sf.format == (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM)) + { *blockalign = wav_fmt->msadpcm.blockalign ; + *framesperblock = wav_fmt->msadpcm.samplesperblock ; + } ; + break ; + + case WAVE_FORMAT_PCM : + psf->sf.format = SF_FORMAT_WAV | u_bitwidth_to_subformat (psf->bytewidth * 8) ; + break ; + + case WAVE_FORMAT_MULAW : + case IBM_FORMAT_MULAW : + psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ULAW) ; + break ; + + case WAVE_FORMAT_ALAW : + case IBM_FORMAT_ALAW : + psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_ALAW) ; + break ; + + case WAVE_FORMAT_MS_ADPCM : + psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ; + *blockalign = wav_fmt->msadpcm.blockalign ; + *framesperblock = wav_fmt->msadpcm.samplesperblock ; + break ; + + case WAVE_FORMAT_IMA_ADPCM : + psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ; + *blockalign = wav_fmt->ima.blockalign ; + *framesperblock = wav_fmt->ima.samplesperblock ; + break ; + + case WAVE_FORMAT_GSM610 : + psf->sf.format = (SF_FORMAT_WAV | SF_FORMAT_GSM610) ; + break ; + + case WAVE_FORMAT_IEEE_FLOAT : + psf->sf.format = SF_FORMAT_WAV ; + psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ; + break ; + + case WAVE_FORMAT_G721_ADPCM : + psf->sf.format = SF_FORMAT_WAV | SF_FORMAT_G721_32 ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + if (wpriv->fmt_is_broken) + wav_w64_analyze (psf) ; + + /* Only set the format endian-ness if its non-standard big-endian. */ + if (psf->endian == SF_ENDIAN_BIG) + psf->sf.format |= SF_ENDIAN_BIG ; + + return 0 ; +} /* wav_read_header */ + +static int +wav_write_fmt_chunk (SF_PRIVATE *psf) +{ int subformat, fmt_size, add_fact_chunk = 0 ; + + subformat = SF_CODEC (psf->sf.format) ; + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + break ; + + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ULAW : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth, extrabytes */ + psf_binheader_writef (psf, "222", psf->bytewidth * psf->sf.channels, 8, 0) ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ALAW : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth, extrabytes */ + psf_binheader_writef (psf, "222", psf->bytewidth * psf->sf.channels, 8, 0) ; + + add_fact_chunk = SF_TRUE ; + break ; + + /* Lite remove start */ + case SF_FORMAT_IMA_ADPCM : + { int blockalign, framesperblock, bytespersec ; + + blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ; + bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; + + /* fmt chunk. */ + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; + + /* fmt : size, WAV format type, channels, samplerate, bytespersec */ + psf_binheader_writef (psf, "42244", fmt_size, WAVE_FORMAT_IMA_ADPCM, + psf->sf.channels, psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "2222", blockalign, 4, 2, framesperblock) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_MS_ADPCM : + { int blockalign, framesperblock, bytespersec, extrabytes ; + + blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; + framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ; + bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; + + /* fmt chunk. */ + extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ; + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ; + + /* fmt : size, WAV format type, channels. */ + psf_binheader_writef (psf, "422", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ; + + /* fmt : samplerate, bytespersec. */ + psf_binheader_writef (psf, "44", psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "22222", blockalign, 4, extrabytes, framesperblock, 7) ; + + msadpcm_write_adapt_coeffs (psf) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + + + case SF_FORMAT_G721_32 : + /* fmt chunk. */ + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; + + /* fmt : size, WAV format type, channels, samplerate, bytespersec */ + psf_binheader_writef (psf, "42244", fmt_size, WAVE_FORMAT_G721_ADPCM, + psf->sf.channels, psf->sf.samplerate, psf->sf.samplerate * psf->sf.channels / 2) ; + + /* fmt : blockalign, bitwidth, extrabytes, auxblocksize. */ + psf_binheader_writef (psf, "2222", 64, 4, 2, 0) ; + + add_fact_chunk = SF_TRUE ; + break ; + + /* Lite remove end */ + + case SF_FORMAT_GSM610 : + { int blockalign, framesperblock, bytespersec ; + + blockalign = WAV_W64_GSM610_BLOCKSIZE ; + framesperblock = WAV_W64_GSM610_SAMPLES ; + bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; + + /* fmt chunk. */ + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; + + /* fmt : size, WAV format type, channels. */ + psf_binheader_writef (psf, "422", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ; + + /* fmt : samplerate, bytespersec. */ + psf_binheader_writef (psf, "44", psf->sf.samplerate, bytespersec) ; + + /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ + psf_binheader_writef (psf, "2222", blockalign, 0, 2, framesperblock) ; + } ; + + add_fact_chunk = SF_TRUE ; + break ; + + default : return SFE_UNIMPLEMENTED ; + } ; + + if (add_fact_chunk) + psf_binheader_writef (psf, "tm48", fact_MARKER, 4, psf->sf.frames) ; + + return 0 ; +} /* wav_write_fmt_chunk */ + +static int +wavex_write_fmt_chunk (SF_PRIVATE *psf) +{ WAV_PRIVATE *wpriv ; + int subformat, fmt_size, add_fact_chunk = 0 ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + + subformat = SF_CODEC (psf->sf.format) ; + + /* initial section (same for all, it appears) */ + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + case SF_FORMAT_ULAW : + case SF_FORMAT_ALAW : + fmt_size = 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2 + 2 + 8 ; + + /* fmt : format, channels, samplerate */ + psf_binheader_writef (psf, "4224", fmt_size, WAVE_FORMAT_EXTENSIBLE, psf->sf.channels, psf->sf.samplerate) ; + /* fmt : bytespersec */ + psf_binheader_writef (psf, "4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; + /* fmt : blockalign, bitwidth */ + psf_binheader_writef (psf, "22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; + + /* cbSize 22 is sizeof (WAVEFORMATEXTENSIBLE) - sizeof (WAVEFORMATEX) */ + psf_binheader_writef (psf, "2", 22) ; + + /* wValidBitsPerSample, for our use same as bitwidth as we use it fully */ + psf_binheader_writef (psf, "2", psf->bytewidth * 8) ; + + /* For an Ambisonic file set the channel mask to zero. + ** Otherwise use a default based on the channel count. + */ + if (wpriv->wavex_ambisonic != SF_AMBISONIC_NONE) + psf_binheader_writef (psf, "4", 0) ; + else if (wpriv->wavex_channelmask != 0) + psf_binheader_writef (psf, "4", wpriv->wavex_channelmask) ; + else + { /* + ** Ok some liberty is taken here to use the most commonly used channel masks + ** instead of "no mapping". If you really want to use "no mapping" for 8 channels and less + ** please don't use wavex. (otherwise we'll have to create a new SF_COMMAND) + */ + switch (psf->sf.channels) + { case 1 : /* center channel mono */ + psf_binheader_writef (psf, "4", 0x4) ; + break ; + + case 2 : /* front left and right */ + psf_binheader_writef (psf, "4", 0x1 | 0x2) ; + break ; + + case 4 : /* Quad */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x10 | 0x20) ; + break ; + + case 6 : /* 5.1 */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20) ; + break ; + + case 8 : /* 7.1 */ + psf_binheader_writef (psf, "4", 0x1 | 0x2 | 0x4 | 0x8 | 0x10 | 0x20 | 0x40 | 0x80) ; + break ; + + default : /* 0 when in doubt , use direct out, ie NO mapping*/ + psf_binheader_writef (psf, "4", 0x0) ; + break ; + } ; + } ; + break ; + + case SF_FORMAT_MS_ADPCM : /* Todo, GUID exists might have different header as per wav_write_header */ + default : + return SFE_UNIMPLEMENTED ; + } ; + + /* GUID section, different for each */ + + switch (subformat) + { case SF_FORMAT_PCM_U8 : + case SF_FORMAT_PCM_16 : + case SF_FORMAT_PCM_24 : + case SF_FORMAT_PCM_32 : + wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ? + &MSGUID_SUBTYPE_PCM : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM) ; + break ; + + case SF_FORMAT_FLOAT : + case SF_FORMAT_DOUBLE : + wavex_write_guid (psf, wpriv->wavex_ambisonic == SF_AMBISONIC_NONE ? + &MSGUID_SUBTYPE_IEEE_FLOAT : &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT) ; + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ULAW : + wavex_write_guid (psf, &MSGUID_SUBTYPE_MULAW) ; + add_fact_chunk = SF_TRUE ; + break ; + + case SF_FORMAT_ALAW : + wavex_write_guid (psf, &MSGUID_SUBTYPE_ALAW) ; + add_fact_chunk = SF_TRUE ; + break ; + +#if 0 + /* This is dead code due to return in previous switch statement. */ + case SF_FORMAT_MS_ADPCM : /* todo, GUID exists */ + wavex_write_guid (psf, &MSGUID_SUBTYPE_MS_ADPCM) ; + add_fact_chunk = SF_TRUE ; + break ; + return SFE_UNIMPLEMENTED ; +#endif + + default : return SFE_UNIMPLEMENTED ; + } ; + + if (add_fact_chunk) + psf_binheader_writef (psf, "tm48", fact_MARKER, 4, psf->sf.frames) ; + + return 0 ; +} /* wavex_write_fmt_chunk */ + + +static int +wav_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + int k, error, has_data = SF_FALSE ; + + current = psf_ftell (psf) ; + + if (current > psf->dataoffset) + has_data = SF_TRUE ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + if (psf->bytewidth > 0) + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* + ** RIFX signifies big-endian format for all header and data. + ** To prevent lots of code copying here, we'll set the psf->rwf_endian flag + ** once here, and never specify endian-ness for all other header operations. + */ + + /* RIFF/RIFX marker, length, WAVE and 'fmt ' markers. */ + + if (psf->endian == SF_ENDIAN_LITTLE) + psf_binheader_writef (psf, "etm8", RIFF_MARKER, (psf->filelength < 8) ? 8 : psf->filelength - 8) ; + else + psf_binheader_writef (psf, "Etm8", RIFX_MARKER, (psf->filelength < 8) ? 8 : psf->filelength - 8) ; + + /* WAVE and 'fmt ' markers. */ + psf_binheader_writef (psf, "mm", WAVE_MARKER, fmt_MARKER) ; + + /* Write the 'fmt ' chunk. */ + switch (SF_CONTAINER (psf->sf.format)) + { case SF_FORMAT_WAV : + if ((error = wav_write_fmt_chunk (psf)) != 0) + return error ; + break ; + + case SF_FORMAT_WAVEX : + if ((error = wavex_write_fmt_chunk (psf)) != 0) + return error ; + break ; + + default : + return SFE_UNIMPLEMENTED ; + } ; + + /* The LIST/INFO chunk. */ + if (psf->str_flags & SF_STR_LOCATE_START) + wav_write_strings (psf, SF_STR_LOCATE_START) ; + + if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_START) + { psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "44", 1, time (NULL)) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "ft8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + + if (psf->broadcast_16k != NULL) + wav_write_bext_chunk (psf) ; + + if (psf->instrument != NULL) + { int tmp ; + double dtune = (double) (0x40000000) / 25.0 ; + + psf_binheader_writef (psf, "m4", smpl_MARKER, 9 * 4 + psf->instrument->loop_count * 6 * 4) ; + psf_binheader_writef (psf, "44", 0, 0) ; /* Manufacturer zero is everyone */ + tmp = (int) (1.0e9 / psf->sf.samplerate) ; /* Sample period in nano seconds */ + psf_binheader_writef (psf, "44", tmp, psf->instrument->basenote) ; + tmp = (unsigned int) (psf->instrument->detune * dtune + 0.5) ; + psf_binheader_writef (psf, "4", tmp) ; + psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */ + psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ; + + for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++) + { int type ; + + type = psf->instrument->loops [tmp].mode ; + type = (type == SF_LOOP_FORWARD ? 0 : type==SF_LOOP_BACKWARD ? 2 : type == SF_LOOP_ALTERNATING ? 1 : 32) ; + + psf_binheader_writef (psf, "44", tmp, type) ; + psf_binheader_writef (psf, "44", psf->instrument->loops [tmp].start, psf->instrument->loops [tmp].end - 1) ; + psf_binheader_writef (psf, "44", 0, psf->instrument->loops [tmp].count) ; + } ; + } ; + + if (psf->headindex + 16 < psf->dataoffset) + { /* Add PAD data if necessary. */ + k = psf->dataoffset - (psf->headindex + 16) ; + psf_binheader_writef (psf, "m4z", PAD_MARKER, k, make_size_t (k)) ; + } ; + + psf_binheader_writef (psf, "tm8", data_MARKER, psf->datalength) ; + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + if (psf->error) + return psf->error ; + + if (has_data && psf->dataoffset != psf->headindex) + { psf_log_printf (psf, "Oooops : has_data && psf->dataoffset != psf->headindex\n") ; + return psf->error = SFE_INTERNAL ; + } ; + + psf->dataoffset = psf->headindex ; + + if (! has_data) + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + else if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* wav_write_header */ + + +static int +wav_write_tailer (SF_PRIVATE *psf) +{ int k ; + + /* Reset the current header buffer length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + + if (psf->dataend > 0) + psf_fseek (psf, psf->dataend, SEEK_SET) ; + else + psf->dataend = psf_fseek (psf, 0, SEEK_END) ; + + /* Add a PEAK chunk if requested. */ + if (psf->peak_info != NULL && psf->peak_info->peak_loc == SF_PEAK_END) + { psf_binheader_writef (psf, "m4", PEAK_MARKER, WAV_PEAK_CHUNK_SIZE (psf->sf.channels)) ; + psf_binheader_writef (psf, "44", 1, time (NULL)) ; + for (k = 0 ; k < psf->sf.channels ; k++) + psf_binheader_writef (psf, "f4", psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ; + } ; + + if (psf->str_flags & SF_STR_LOCATE_END) + wav_write_strings (psf, SF_STR_LOCATE_END) ; + + /* Write the tailer. */ + if (psf->headindex > 0) + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + return 0 ; +} /* wav_write_tailer */ + +static void +wav_write_strings (SF_PRIVATE *psf, int location) +{ int k, prev_head_index, saved_head_index ; + + if (psf_location_string_count (psf, location) == 0) + return ; + + prev_head_index = psf->headindex + 4 ; + + psf_binheader_writef (psf, "m4m", LIST_MARKER, 0xBADBAD, INFO_MARKER) ; + + for (k = 0 ; k < SF_MAX_STRINGS ; k++) + { if (psf->strings [k].type == 0) + break ; + if (psf->strings [k].type < 0 || psf->strings [k].flags != location) + continue ; + + switch (psf->strings [k].type) + { case SF_STR_SOFTWARE : + psf_binheader_writef (psf, "ms", ISFT_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_TITLE : + psf_binheader_writef (psf, "ms", INAM_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_COPYRIGHT : + psf_binheader_writef (psf, "ms", ICOP_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_ARTIST : + psf_binheader_writef (psf, "ms", IART_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_COMMENT : + psf_binheader_writef (psf, "ms", ICMT_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_DATE : + psf_binheader_writef (psf, "ms", ICRD_MARKER, psf->strings [k].str) ; + break ; + + case SF_STR_GENRE : + psf_binheader_writef (psf, "ms", IGNR_MARKER, psf->strings [k].str) ; + break ; + + default : + break ; + } ; + } ; + + saved_head_index = psf->headindex ; + psf->headindex = prev_head_index ; + psf_binheader_writef (psf, "4", saved_head_index - prev_head_index - 4) ; + psf->headindex = saved_head_index ; + +} /* wav_write_strings */ + +static int +wav_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { wav_write_tailer (psf) ; + + if (psf->file.mode == SFM_RDWR) + { sf_count_t current = psf_ftell (psf) ; + + /* + ** If the mode is RDWR and the current position is less than the + ** filelength, truncate the file. + */ + + if (current < psf->filelength) + { psf_ftruncate (psf, current) ; + psf->filelength = current ; + } ; + } ; + + psf->write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* wav_close */ + +static int +wav_command (SF_PRIVATE *psf, int command, void * UNUSED (data), int datasize) +{ WAV_PRIVATE *wpriv ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + + switch (command) + { case SFC_WAVEX_SET_AMBISONIC : + if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAVEX) + { if (datasize == SF_AMBISONIC_NONE) + wpriv->wavex_ambisonic = SF_AMBISONIC_NONE ; + else if (datasize == SF_AMBISONIC_B_FORMAT) + wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ; + else + return 0 ; + } ; + return wpriv->wavex_ambisonic ; + + case SFC_WAVEX_GET_AMBISONIC : + return wpriv->wavex_ambisonic ; + + case SFC_SET_CHANNEL_MAP_INFO : + wpriv->wavex_channelmask = wavex_gen_channel_mask (psf->channel_map, psf->sf.channels) ; + return (wpriv->wavex_channelmask != 0) ; + + default : + break ; + } ; + + return 0 ; +} /* wav_command */ + +static int +wav_subchunk_parse (SF_PRIVATE *psf, int chunk) +{ sf_count_t current_pos ; + char *cptr ; + unsigned dword, bytesread, length ; + + current_pos = psf_fseek (psf, 0, SEEK_CUR) ; + + bytesread = psf_binheader_readf (psf, "4", &length) ; + + if (length <= 8) + { /* This case is for broken files generated by PEAK. */ + psf_log_printf (psf, "%M : %d (weird length)\n", chunk, length) ; + psf_binheader_readf (psf, "mj", &chunk, length - 4) ; + psf_log_printf (psf, " %M\n", chunk) ; + return 0 ; + } ; + + if (psf->headindex + length > SIGNED_SIZEOF (psf->header)) + { psf_log_printf (psf, "%M : %d (too long)\n", chunk, length) ; + psf_binheader_readf (psf, "j", length) ; + return 0 ; + } ; + + if (current_pos + length > psf->filelength) + { psf_log_printf (psf, "%M : %d (should be %d)\n", chunk, length, (int) (psf->filelength - current_pos)) ; + length = psf->filelength - current_pos ; + } + else + psf_log_printf (psf, "%M : %d\n", chunk, length) ; + + while (bytesread < length) + { bytesread += psf_binheader_readf (psf, "m", &chunk) ; + + switch (chunk) + { case adtl_MARKER : + case INFO_MARKER : + /* These markers don't contain anything. */ + psf_log_printf (psf, " %M\n", chunk) ; + break ; + + case data_MARKER : + psf_log_printf (psf, " %M inside a LIST block??? Backing out.\n", chunk) ; + /* Jump back four bytes and return to caller. */ + psf_binheader_readf (psf, "j", -4) ; + return 0 ; + + case ISFT_MARKER : + case ICOP_MARKER : + case IARL_MARKER : + case IART_MARKER : + case ICMT_MARKER : + case ICRD_MARKER : + case IENG_MARKER : + case IGNR_MARKER : + case INAM_MARKER : + case IPRD_MARKER : + case ISBJ_MARKER : + case ISRC_MARKER : + bytesread += psf_binheader_readf (psf, "4", &dword) ; + dword += (dword & 1) ; + if (dword >= SIGNED_SIZEOF (psf->u.cbuf)) + { psf_log_printf (psf, " *** %M : %d (too big)\n", chunk, dword) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword) ; + bytesread += dword ; + cptr [dword] = 0 ; + psf_log_printf (psf, " %M : %s\n", chunk, cptr) ; + break ; + + case labl_MARKER : + { int mark_id ; + + bytesread += psf_binheader_readf (psf, "44", &dword, &mark_id) ; + dword -= 4 ; + dword += (dword & 1) ; + if (dword < 1 || dword >= SIGNED_SIZEOF (psf->u.cbuf)) + { psf_log_printf (psf, " *** %M : %d (too big)\n", chunk, dword) ; + psf_binheader_readf (psf, "j", dword) ; + break ; + } ; + + cptr = psf->u.cbuf ; + psf_binheader_readf (psf, "b", cptr, dword) ; + bytesread += dword ; + cptr [dword] = 0 ; + psf_log_printf (psf, " %M : %d : %s\n", chunk, mark_id, cptr) ; + } ; + break ; + + + case DISP_MARKER : + case ltxt_MARKER : + case note_MARKER : + bytesread += psf_binheader_readf (psf, "4", &dword) ; + dword += (dword & 1) ; + psf_binheader_readf (psf, "j", dword) ; + bytesread += dword ; + psf_log_printf (psf, " %M : %d\n", chunk, dword) ; + break ; + + case exif_MARKER : + psf_log_printf (psf, " %M\n", chunk) ; + bytesread += exif_subchunk_parse (psf, length - bytesread) ; + break ; + + case 0 : + /* + ** Four zero bytes where a marker was expected. Assume this means + ** the rest of the chunk is garbage. + */ + psf_log_printf (psf, " *** Found weird-ass zero marker. Jumping to end of chunk.\n") ; + if (bytesread < length) + bytesread += psf_binheader_readf (psf, "j", length - bytesread + 4) ; + psf_log_printf (psf, " *** Offset is now : 0x%X\n", psf_fseek (psf, 0, SEEK_CUR)) ; + return 0 ; + + default : + psf_binheader_readf (psf, "4", &dword) ; + bytesread += sizeof (dword) ; + dword += (dword & 1) ; + psf_binheader_readf (psf, "j", dword) ; + bytesread += dword ; + psf_log_printf (psf, " *** %M : %d\n", chunk, dword) ; + if (dword > length) + return 0 ; + break ; + } ; + + switch (chunk) + { case ISFT_MARKER : + psf_store_string (psf, SF_STR_SOFTWARE, psf->u.cbuf) ; + break ; + case ICOP_MARKER : + psf_store_string (psf, SF_STR_COPYRIGHT, psf->u.cbuf) ; + break ; + case INAM_MARKER : + psf_store_string (psf, SF_STR_TITLE, psf->u.cbuf) ; + break ; + case IART_MARKER : + psf_store_string (psf, SF_STR_ARTIST, psf->u.cbuf) ; + break ; + case ICMT_MARKER : + psf_store_string (psf, SF_STR_COMMENT, psf->u.cbuf) ; + break ; + case ICRD_MARKER : + psf_store_string (psf, SF_STR_DATE, psf->u.cbuf) ; + break ; + case IGNR_MARKER : + psf_store_string (psf, SF_STR_GENRE, psf->u.cbuf) ; + break ; + } ; + } ; + + current_pos = psf_fseek (psf, 0, SEEK_CUR) - current_pos ; + + if (current_pos - 4 != length) + psf_log_printf (psf, "**** Bad chunk length %d sbould be %D\n", length, current_pos - 4) ; + + return 0 ; +} /* wav_subchunk_parse */ + +static int +wav_read_smpl_chunk (SF_PRIVATE *psf, unsigned int chunklen) +{ unsigned int bytesread = 0, dword, sampler_data, loop_count ; + unsigned int note, start, end, type = -1, count ; + int j, k ; + + chunklen += (chunklen & 1) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " Manufacturer : %X\n", dword) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " Product : %u\n", dword) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " Period : %u nsec\n", dword) ; + + bytesread += psf_binheader_readf (psf, "4", ¬e) ; + psf_log_printf (psf, " Midi Note : %u\n", note) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + if (dword != 0) + { snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f", + (1.0 * 0x80000000) / ((unsigned int) dword)) ; + psf_log_printf (psf, " Pitch Fract. : %s\n", psf->u.cbuf) ; + } + else + psf_log_printf (psf, " Pitch Fract. : 0\n") ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " SMPTE Format : %u\n", dword) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%02d:%02d:%02d %02d", + (dword >> 24) & 0x7F, (dword >> 16) & 0x7F, (dword >> 8) & 0x7F, dword & 0x7F) ; + psf_log_printf (psf, " SMPTE Offset : %s\n", psf->u.cbuf) ; + + bytesread += psf_binheader_readf (psf, "4", &loop_count) ; + psf_log_printf (psf, " Loop Count : %u\n", loop_count) ; + + /* Sampler Data holds the number of data bytes after the CUE chunks which + ** is not actually CUE data. Display value after CUE data. + */ + bytesread += psf_binheader_readf (psf, "4", &sampler_data) ; + + if ((psf->instrument = psf_instrument_alloc ()) == NULL) + return SFE_MALLOC_FAILED ; + + psf->instrument->loop_count = loop_count ; + + for (j = 0 ; loop_count > 0 && chunklen - bytesread >= 24 ; j ++) + { bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " Cue ID : %2u", dword) ; + + bytesread += psf_binheader_readf (psf, "4", &type) ; + psf_log_printf (psf, " Type : %2u", type) ; + + bytesread += psf_binheader_readf (psf, "4", &start) ; + psf_log_printf (psf, " Start : %5u", start) ; + + bytesread += psf_binheader_readf (psf, "4", &end) ; + psf_log_printf (psf, " End : %5u", end) ; + + bytesread += psf_binheader_readf (psf, "4", &dword) ; + psf_log_printf (psf, " Fraction : %5u", dword) ; + + bytesread += psf_binheader_readf (psf, "4", &count) ; + psf_log_printf (psf, " Count : %5u\n", count) ; + + if (j < ARRAY_LEN (psf->instrument->loops)) + { psf->instrument->loops [j].start = start ; + psf->instrument->loops [j].end = end + 1 ; + psf->instrument->loops [j].count = count ; + + switch (type) + { case 0 : + psf->instrument->loops [j].mode = SF_LOOP_FORWARD ; + break ; + case 1 : + psf->instrument->loops [j].mode = SF_LOOP_ALTERNATING ; + break ; + case 2 : + psf->instrument->loops [j].mode = SF_LOOP_BACKWARD ; + break ; + default: + psf->instrument->loops [j].mode = SF_LOOP_NONE ; + break ; + } ; + } ; + + loop_count -- ; + } ; + + if (chunklen - bytesread == 0) + { if (sampler_data != 0) + psf_log_printf (psf, " Sampler Data : %u (should be 0)\n", sampler_data) ; + else + psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ; + } + else + { if (sampler_data != chunklen - bytesread) + { psf_log_printf (psf, " Sampler Data : %u (should have been %u)\n", sampler_data, chunklen - bytesread) ; + sampler_data = chunklen - bytesread ; + } + else + psf_log_printf (psf, " Sampler Data : %u\n", sampler_data) ; + + psf_log_printf (psf, " ") ; + for (k = 0 ; k < (int) sampler_data ; k++) + { char ch ; + + if (k > 0 && (k % 20) == 0) + psf_log_printf (psf, "\n ") ; + + bytesread += psf_binheader_readf (psf, "1", &ch) ; + psf_log_printf (psf, "%02X ", ch & 0xFF) ; + } ; + + psf_log_printf (psf, "\n") ; + } ; + + psf->instrument->basenote = note ; + psf->instrument->gain = 1 ; + psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ; + psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ; + + return 0 ; +} /* wav_read_smpl_chunk */ + +/* +** The acid chunk goes a little something like this: +** +** 4 bytes 'acid' +** 4 bytes (int) length of chunk starting at next byte +** +** 4 bytes (int) type of file: +** this appears to be a bit mask,however some combinations +** are probably impossible and/or qualified as "errors" +** +** 0x01 On: One Shot Off: Loop +** 0x02 On: Root note is Set Off: No root +** 0x04 On: Stretch is On, Off: Strech is OFF +** 0x08 On: Disk Based Off: Ram based +** 0x10 On: ?????????? Off: ????????? (Acidizer puts that ON) +** +** 2 bytes (short) root note +** if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B] +** if type 0x10 is ON : [C,C#,(...),B] -> [0x3C to 0x47] +** (both types fit on same MIDI pitch albeit different octaves, so who cares) +** +** 2 bytes (short) ??? always set to 0x8000 +** 4 bytes (float) ??? seems to be always 0 +** 4 bytes (int) number of beats +** 2 bytes (short) meter denominator //always 4 in SF/ACID +** 2 bytes (short) meter numerator //always 4 in SF/ACID +** //are we sure about the order?? usually its num/denom +** 4 bytes (float) tempo +** +*/ + +static int +wav_read_acid_chunk (SF_PRIVATE *psf, unsigned int chunklen) +{ unsigned int bytesread = 0 ; + int beats, flags ; + short rootnote, q1, meter_denom, meter_numer ; + float q2, tempo ; + + chunklen += (chunklen & 1) ; + + bytesread += psf_binheader_readf (psf, "422f", &flags, &rootnote, &q1, &q2) ; + + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f", q2) ; + + psf_log_printf (psf, " Flags : 0x%04x (%s,%s,%s,%s,%s)\n", flags, + (flags & 0x01) ? "OneShot" : "Loop", + (flags & 0x02) ? "RootNoteValid" : "RootNoteInvalid", + (flags & 0x04) ? "StretchOn" : "StretchOff", + (flags & 0x08) ? "DiskBased" : "RAMBased", + (flags & 0x10) ? "??On" : "??Off") ; + + psf_log_printf (psf, " Root note : 0x%x\n ???? : 0x%04x\n ???? : %s\n", + rootnote, q1, psf->u.cbuf) ; + + bytesread += psf_binheader_readf (psf, "422f", &beats, &meter_denom, &meter_numer, &tempo) ; + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%f", tempo) ; + psf_log_printf (psf, " Beats : %d\n Meter : %d/%d\n Tempo : %s\n", + beats, meter_numer, meter_denom, psf->u.cbuf) ; + + psf_binheader_readf (psf, "j", chunklen - bytesread) ; + + if ((psf->loop_info = calloc (1, sizeof (SF_LOOP_INFO))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->loop_info->time_sig_num = meter_numer ; + psf->loop_info->time_sig_den = meter_denom ; + psf->loop_info->loop_mode = (flags & 0x01) ? SF_LOOP_NONE : SF_LOOP_FORWARD ; + psf->loop_info->num_beats = beats ; + psf->loop_info->bpm = tempo ; + psf->loop_info->root_key = (flags & 0x02) ? rootnote : -1 ; + + return 0 ; +} /* wav_read_acid_chunk */ + +int +wav_read_bext_chunk (SF_PRIVATE *psf, unsigned int chunksize) +{ + SF_BROADCAST_INFO_16K * b ; + unsigned int bytes = 0 ; + + if (chunksize < WAV_BEXT_MIN_CHUNK_SIZE) + { psf_log_printf (psf, "bext : %u (should be >= %d)\n", chunksize, WAV_BEXT_MIN_CHUNK_SIZE) ; + psf_binheader_readf (psf, "j", chunksize) ; + return 0 ; + } ; + + if (chunksize > WAV_BEXT_MAX_CHUNK_SIZE) + { psf_log_printf (psf, "bext : %u (should be < %d)\n", chunksize, WAV_BEXT_MAX_CHUNK_SIZE) ; + psf_binheader_readf (psf, "j", chunksize) ; + return 0 ; + } ; + + if (chunksize >= sizeof (SF_BROADCAST_INFO_16K)) + { psf_log_printf (psf, "bext : %u too big to be handled\n", chunksize) ; + psf_binheader_readf (psf, "j", chunksize) ; + return 0 ; + } ; + + psf_log_printf (psf, "bext : %u\n", chunksize) ; + + if ((psf->broadcast_16k = broadcast_var_alloc ()) == NULL) + { psf->error = SFE_MALLOC_FAILED ; + return psf->error ; + } ; + + b = psf->broadcast_16k ; + + bytes += psf_binheader_readf (psf, "b", b->description, sizeof (b->description)) ; + bytes += psf_binheader_readf (psf, "b", b->originator, sizeof (b->originator)) ; + bytes += psf_binheader_readf (psf, "b", b->originator_reference, sizeof (b->originator_reference)) ; + bytes += psf_binheader_readf (psf, "b", b->origination_date, sizeof (b->origination_date)) ; + bytes += psf_binheader_readf (psf, "b", b->origination_time, sizeof (b->origination_time)) ; + bytes += psf_binheader_readf (psf, "442", &b->time_reference_low, &b->time_reference_high, &b->version) ; + bytes += psf_binheader_readf (psf, "bj", &b->umid, sizeof (b->umid), 190) ; + + if (chunksize > WAV_BEXT_MIN_CHUNK_SIZE) + { /* File has coding history data. */ + + b->coding_history_size = chunksize - WAV_BEXT_MIN_CHUNK_SIZE ; + + /* We do not parse the coding history */ + bytes += psf_binheader_readf (psf, "b", b->coding_history, b->coding_history_size) ; + } ; + + if (bytes < chunksize) + psf_binheader_readf (psf, "j", chunksize - bytes) ; + + return 0 ; +} /* wav_read_bext_chunk */ + +int +wav_write_bext_chunk (SF_PRIVATE *psf) +{ SF_BROADCAST_INFO_16K *b ; + + if (psf->broadcast_16k == NULL) + return -1 ; + + b = psf->broadcast_16k ; + + psf_binheader_writef (psf, "m4", bext_MARKER, WAV_BEXT_MIN_CHUNK_SIZE + b->coding_history_size) ; + + /* + ** Note that it is very important the the field widths of the SF_BROADCAST_INFO + ** struct match those for the bext chunk fields. + */ + + psf_binheader_writef (psf, "b", b->description, sizeof (b->description)) ; + psf_binheader_writef (psf, "b", b->originator, sizeof (b->originator)) ; + psf_binheader_writef (psf, "b", b->originator_reference, sizeof (b->originator_reference)) ; + psf_binheader_writef (psf, "b", b->origination_date, sizeof (b->origination_date)) ; + psf_binheader_writef (psf, "b", b->origination_time, sizeof (b->origination_time)) ; + psf_binheader_writef (psf, "442", b->time_reference_low, b->time_reference_high, b->version) ; + psf_binheader_writef (psf, "b", b->umid, sizeof (b->umid)) ; + psf_binheader_writef (psf, "z", make_size_t (190)) ; + + if (b->coding_history_size > 0) + psf_binheader_writef (psf, "b", b->coding_history, make_size_t (b->coding_history_size)) ; + + return 0 ; +} /* wav_write_bext_chunk */ + +static int +exif_fill_and_sink (SF_PRIVATE *psf, char* buf, size_t bufsz, size_t toread) +{ + size_t bytesread = 0 ; + + buf [0] = 0 ; + bufsz -= 1 ; + if (toread < bufsz) + bufsz = toread ; + bytesread = psf_binheader_readf (psf, "b", buf, bufsz) ; + buf [bufsz] = 0 ; + + if (bytesread == bufsz && toread > bufsz) + bytesread += psf_binheader_readf (psf, "j", toread - bufsz) ; + + return bytesread ; +} /* exif_fill_and_sink */ + +/* +** Exif specification for audio files, at JEITA CP-3451 Exif 2.2 section 5 +** (Exif Audio File Specification) http://www.exif.org/Exif2-2.PDF +*/ +static int +exif_subchunk_parse (SF_PRIVATE *psf, unsigned int length) +{ unsigned marker, dword, vmajor = -1, vminor = -1, bytesread = 0 ; + char buf [4096] ; + + while (bytesread < length) + { + bytesread += psf_binheader_readf (psf, "m", &marker) ; + + switch (marker) + { + case 0 : /* camera padding? */ + break ; + + case ever_MARKER : + bytesread += psf_binheader_readf (psf, "j4", 4, &dword) ; + vmajor = 10 * (((dword >> 24) & 0xff) - '0') + (((dword >> 16) & 0xff) - '0') ; + vminor = 10 * (((dword >> 8) & 0xff) - '0') + ((dword & 0xff) - '0') ; + psf_log_printf (psf, " EXIF Version : %u.%02u\n", vmajor, vminor) ; + break ; + + case emnt_MARKER : /* design information: null-terminated string */ + case emdl_MARKER : /* model name ; null-terminated string */ + case ecor_MARKER : /* manufacturer: null-terminated string */ + case etim_MARKER : /* creation time: null-terminated string in the format "hour:minute:second.subsecond" */ + case erel_MARKER : /* relation info: null-terminated string (filename) */ + case eucm_MARKER : /* user comment: 4-byte size follows, then possibly unicode data */ + psf_binheader_readf (psf, "4", &dword) ; + bytesread += sizeof (dword) ; + dword += (dword & 1) ; + + if (dword >= sizeof (buf)) + { psf_log_printf (psf, "*** Marker '%M' is too big %u\n\n", marker, dword) ; + return bytesread ; + } ; + + bytesread += exif_fill_and_sink (psf, buf, sizeof (buf), dword) ; + + /* BAD - don't know what's going on here -- maybe a bug in the camera */ + /* field should be NULL-terminated but there's no room for it with the reported number */ + /* example output: emdl : 8 (EX-Z1050) */ + if (marker == emdl_MARKER && dword == strlen (buf) /* should be >= strlen+1*/) + { psf_log_printf (psf, " *** field size too small for string (sinking 2 bytes)\n") ; + bytesread += psf_binheader_readf (psf, "j", 2) ; + } ; + + psf_log_printf (psf, " %M : %d (%s)\n", marker, dword, buf) ; + if (dword > length) + return bytesread ; + break ; + + default : + psf_log_printf (psf, " *** %M (%d): -- ignored --\n", marker, marker) ; + break ; + } ; + } ; + + return bytesread ; +} /* exif_subchunk_parse */ + diff --git a/src/wav_w64.c b/src/wav_w64.c new file mode 100644 index 0000000..ba6bd99 --- /dev/null +++ b/src/wav_w64.c @@ -0,0 +1,677 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2004-2005 David Viens <davidv@plogue.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <time.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" +#include "wav_w64.h" + +/* Known WAVEFORMATEXTENSIBLE GUIDS. */ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM = +{ 0x00000001, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM = +{ 0x00000002, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT = +{ 0x00000003, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW = +{ 0x00000006, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW = +{ 0x00000007, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 } +} ; + +/* +** the next two are from +** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html +*/ + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM = +{ 0x00000001, 0x0721, 0x11d3, { 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 } +} ; + +static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT = +{ 0x00000003, 0x0721, 0x11d3, { 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00 } +} ; + + +#if 0 +/* maybe interesting one day to read the following through sf_read_raw */ +/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */ +static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX = +{ 0x8312b9c2, 0x2e6e, 0x11d4, { 0xa8, 0x24, 0xde, 0x5b, 0x96, 0xc3, 0xab, 0x21 } +} ; +#endif + +/* This stores which bit in dwChannelMask maps to which channel */ +static const struct chanmap_s +{ int id ; + const char * name ; +} channel_mask_bits [] = +{ /* WAVEFORMATEXTENSIBLE doesn't distuingish FRONT_LEFT from LEFT */ + { SF_CHANNEL_MAP_LEFT, "L" }, + { SF_CHANNEL_MAP_RIGHT, "R" }, + { SF_CHANNEL_MAP_CENTER, "C" }, + { SF_CHANNEL_MAP_LFE, "LFE" }, + { SF_CHANNEL_MAP_REAR_LEFT, "Ls" }, + { SF_CHANNEL_MAP_REAR_RIGHT, "Rs" }, + { SF_CHANNEL_MAP_FRONT_LEFT_OF_CENTER, "Lc" }, + { SF_CHANNEL_MAP_FRONT_RIGHT_OF_CENTER, "Rc" }, + { SF_CHANNEL_MAP_REAR_CENTER, "Cs" }, + { SF_CHANNEL_MAP_SIDE_LEFT, "Sl" }, + { SF_CHANNEL_MAP_SIDE_RIGHT, "Sr" }, + { SF_CHANNEL_MAP_TOP_CENTER, "Tc" }, + { SF_CHANNEL_MAP_TOP_FRONT_LEFT, "Tfl" }, + { SF_CHANNEL_MAP_TOP_FRONT_CENTER, "Tfc" }, + { SF_CHANNEL_MAP_TOP_FRONT_RIGHT, "Tfr" }, + { SF_CHANNEL_MAP_TOP_REAR_LEFT, "Trl" }, + { SF_CHANNEL_MAP_TOP_REAR_CENTER, "Trc" }, + { SF_CHANNEL_MAP_TOP_REAR_RIGHT, "Trr" }, +} ; + +/*------------------------------------------------------------------------------ + * Private static functions. + */ + +static int +wavex_guid_equal (const EXT_SUBFORMAT * first, const EXT_SUBFORMAT * second) +{ return !memcmp (first, second, sizeof (EXT_SUBFORMAT)) ; +} /* wavex_guid_equal */ + + + +int +wav_w64_read_fmt_chunk (SF_PRIVATE *psf, int fmtsize) +{ WAV_PRIVATE * wpriv ; + WAV_FMT *wav_fmt ; + int bytesread, k, bytespersec = 0 ; + + if ((wpriv = psf->container_data) == NULL) + return SFE_INTERNAL ; + wav_fmt = &wpriv->wav_fmt ; + + memset (wav_fmt, 0, sizeof (WAV_FMT)) ; + + if (fmtsize < 16) + return SFE_WAV_FMT_SHORT ; + + /* assume psf->rwf_endian is already properly set */ + + /* Read the minimal WAV file header here. */ + bytesread = psf_binheader_readf (psf, "224422", + &(wav_fmt->format), &(wav_fmt->min.channels), + &(wav_fmt->min.samplerate), &(wav_fmt->min.bytespersec), + &(wav_fmt->min.blockalign), &(wav_fmt->min.bitwidth)) ; + + psf_log_printf (psf, " Format : 0x%X => %s\n", wav_fmt->format, wav_w64_format_str (wav_fmt->format)) ; + psf_log_printf (psf, " Channels : %d\n", wav_fmt->min.channels) ; + psf_log_printf (psf, " Sample Rate : %d\n", wav_fmt->min.samplerate) ; + + if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.blockalign == 0 + && wav_fmt->min.bitwidth > 0 && wav_fmt->min.channels > 0) + { wav_fmt->min.blockalign = wav_fmt->min.bitwidth / 8 + (wav_fmt->min.bitwidth % 8 > 0 ? 1 : 0) ; + wav_fmt->min.blockalign *= wav_fmt->min.channels ; + psf_log_printf (psf, " Block Align : 0 (should be %d)\n", wav_fmt->min.blockalign) ; + } + else + psf_log_printf (psf, " Block Align : %d\n", wav_fmt->min.blockalign) ; + + if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.bitwidth == 24 && + wav_fmt->min.blockalign == 4 * wav_fmt->min.channels) + { psf_log_printf (psf, " Bit Width : 24\n") ; + + psf_log_printf (psf, "\n" + " Ambiguous information in 'fmt ' chunk. Possibile file types:\n" + " 0) Invalid IEEE float file generated by Syntrillium's Cooledit!\n" + " 1) File generated by ALSA's arecord containing 24 bit samples in 32 bit containers.\n" + " 2) 24 bit file with incorrect Block Align value.\n" + "\n") ; + + wpriv->fmt_is_broken = 1 ; + } + else if (wav_fmt->min.bitwidth == 0) + { switch (wav_fmt->format) + { case WAVE_FORMAT_GSM610 : + case WAVE_FORMAT_IPP_ITU_G_723_1 : + psf_log_printf (psf, " Bit Width : %d\n", wav_fmt->min.bitwidth) ; + break ; + default : + psf_log_printf (psf, " Bit Width : %d (should not be 0)\n", wav_fmt->min.bitwidth) ; + } + } + else + { switch (wav_fmt->format) + { case WAVE_FORMAT_GSM610 : + case WAVE_FORMAT_IPP_ITU_G_723_1 : + psf_log_printf (psf, " Bit Width : %d (should be 0)\n", wav_fmt->min.bitwidth) ; + break ; + default : + psf_log_printf (psf, " Bit Width : %d\n", wav_fmt->min.bitwidth) ; + } + } ; + + psf->sf.samplerate = wav_fmt->min.samplerate ; + psf->sf.frames = 0 ; /* Correct this when reading data chunk. */ + psf->sf.channels = wav_fmt->min.channels ; + + switch (wav_fmt->format) + { case WAVE_FORMAT_PCM : + case WAVE_FORMAT_IEEE_FLOAT : + bytespersec = wav_fmt->min.samplerate * wav_fmt->min.blockalign ; + if (wav_fmt->min.bytespersec != (unsigned) bytespersec) + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ; + else + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ; + + psf->bytewidth = BITWIDTH2BYTES (wav_fmt->min.bitwidth) ; + break ; + + case WAVE_FORMAT_ALAW : + case WAVE_FORMAT_MULAW : + if (wav_fmt->min.bytespersec / wav_fmt->min.blockalign != wav_fmt->min.samplerate) + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, wav_fmt->min.samplerate * wav_fmt->min.blockalign) ; + else + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ; + + psf->bytewidth = 1 ; + if (fmtsize >= 18) + { bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->size20.extrabytes)) ; + psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->size20.extrabytes) ; + } ; + break ; + + case WAVE_FORMAT_IMA_ADPCM : + if (wav_fmt->min.bitwidth != 4) + return SFE_WAV_ADPCM_NOT4BIT ; + if (wav_fmt->min.channels < 1 || wav_fmt->min.channels > 2) + return SFE_WAV_ADPCM_CHANNELS ; + + bytesread += + psf_binheader_readf (psf, "22", &(wav_fmt->ima.extrabytes), &(wav_fmt->ima.samplesperblock)) ; + + bytespersec = (wav_fmt->ima.samplerate * wav_fmt->ima.blockalign) / wav_fmt->ima.samplesperblock ; + if (wav_fmt->ima.bytespersec != (unsigned) bytespersec) + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->ima.bytespersec, bytespersec) ; + else + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->ima.bytespersec) ; + + psf->bytewidth = 2 ; + psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->ima.extrabytes) ; + psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->ima.samplesperblock) ; + break ; + + case WAVE_FORMAT_MS_ADPCM : + if (wav_fmt->msadpcm.bitwidth != 4) + return SFE_WAV_ADPCM_NOT4BIT ; + if (wav_fmt->msadpcm.channels < 1 || wav_fmt->msadpcm.channels > 2) + return SFE_WAV_ADPCM_CHANNELS ; + + bytesread += + psf_binheader_readf (psf, "222", &(wav_fmt->msadpcm.extrabytes), + &(wav_fmt->msadpcm.samplesperblock), &(wav_fmt->msadpcm.numcoeffs)) ; + + bytespersec = (wav_fmt->min.samplerate * wav_fmt->min.blockalign) / wav_fmt->msadpcm.samplesperblock ; + if (wav_fmt->min.bytespersec == (unsigned) bytespersec) + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->min.bytespersec) ; + else if (wav_fmt->min.bytespersec == (wav_fmt->min.samplerate / wav_fmt->msadpcm.samplesperblock) * wav_fmt->min.blockalign) + psf_log_printf (psf, " Bytes/sec : %d (should be %d (MS BUG!))\n", wav_fmt->min.bytespersec, bytespersec) ; + else + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ; + + psf->bytewidth = 2 ; + psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->msadpcm.extrabytes) ; + psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->msadpcm.samplesperblock) ; + if (wav_fmt->msadpcm.numcoeffs > ARRAY_LEN (wav_fmt->msadpcm.coeffs)) + { psf_log_printf (psf, " No. of Coeffs : %d (should be <= %d)\n", wav_fmt->msadpcm.numcoeffs, ARRAY_LEN (wav_fmt->msadpcm.coeffs)) ; + wav_fmt->msadpcm.numcoeffs = ARRAY_LEN (wav_fmt->msadpcm.coeffs) ; + } + else + psf_log_printf (psf, " No. of Coeffs : %d\n", wav_fmt->msadpcm.numcoeffs) ; + + psf_log_printf (psf, " Index Coeffs1 Coeffs2\n") ; + for (k = 0 ; k < wav_fmt->msadpcm.numcoeffs ; k++) + { bytesread += + psf_binheader_readf (psf, "22", &(wav_fmt->msadpcm.coeffs [k].coeff1), &(wav_fmt->msadpcm.coeffs [k].coeff2)) ; + snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), " %2d %7d %7d\n", k, wav_fmt->msadpcm.coeffs [k].coeff1, wav_fmt->msadpcm.coeffs [k].coeff2) ; + psf_log_printf (psf, psf->u.cbuf) ; + } ; + break ; + + case WAVE_FORMAT_GSM610 : + if (wav_fmt->gsm610.channels != 1 || wav_fmt->gsm610.blockalign != 65) + return SFE_WAV_GSM610_FORMAT ; + + bytesread += + psf_binheader_readf (psf, "22", &(wav_fmt->gsm610.extrabytes), &(wav_fmt->gsm610.samplesperblock)) ; + + if (wav_fmt->gsm610.samplesperblock != 320) + return SFE_WAV_GSM610_FORMAT ; + + bytespersec = (wav_fmt->gsm610.samplerate * wav_fmt->gsm610.blockalign) / wav_fmt->gsm610.samplesperblock ; + if (wav_fmt->gsm610.bytespersec != (unsigned) bytespersec) + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->gsm610.bytespersec, bytespersec) ; + else + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->gsm610.bytespersec) ; + + psf->bytewidth = 2 ; + psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->gsm610.extrabytes) ; + psf_log_printf (psf, " Samples/Block : %d\n", wav_fmt->gsm610.samplesperblock) ; + break ; + + case WAVE_FORMAT_EXTENSIBLE : + if (wav_fmt->ext.bytespersec / wav_fmt->ext.blockalign != wav_fmt->ext.samplerate) + psf_log_printf (psf, " Bytes/sec : %d (should be %d)\n", wav_fmt->ext.bytespersec, wav_fmt->ext.samplerate * wav_fmt->ext.blockalign) ; + else + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->ext.bytespersec) ; + + bytesread += + psf_binheader_readf (psf, "224", &(wav_fmt->ext.extrabytes), &(wav_fmt->ext.validbits), + &(wav_fmt->ext.channelmask)) ; + + psf_log_printf (psf, " Valid Bits : %d\n", wav_fmt->ext.validbits) ; + + if (wav_fmt->ext.channelmask == 0) + psf_log_printf (psf, " Channel Mask : 0x0 (should not be zero)\n") ; + else + { unsigned bit ; + + wpriv->wavex_channelmask = wav_fmt->ext.channelmask ; + + /* It's probably wise to ignore the channel mask if it is all zero */ + free (psf->channel_map) ; + + if ((psf->channel_map = calloc (psf->sf.channels, sizeof (psf->channel_map [0]))) == NULL) + return SFE_MALLOC_FAILED ; + + /* Terminate the buffer we're going to append_snprintf into. */ + psf->u.cbuf [0] = 0 ; + + for (bit = k = 0 ; bit < ARRAY_LEN (channel_mask_bits) ; bit++) + { + if (wav_fmt->ext.channelmask & (1 << bit)) + { if (k > psf->sf.channels) + { psf_log_printf (psf, "*** More channel map bits than there are channels.\n") ; + break ; + } ; + + psf->channel_map [k++] = channel_mask_bits [bit].id ; + append_snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%s, ", channel_mask_bits [bit].name) ; + } ; + } ; + + /* Remove trailing ", ". */ + bit = strlen (psf->u.cbuf) ; + psf->u.cbuf [--bit] = 0 ; + psf->u.cbuf [--bit] = 0 ; + + if (k != psf->sf.channels) + { psf_log_printf (psf, " Channel Mask : 0x%X\n", wav_fmt->ext.channelmask) ; + psf_log_printf (psf, "*** Less channel map bits than there are channels.\n") ; + } + else + psf_log_printf (psf, " Channel Mask : 0x%X (%s)\n", wav_fmt->ext.channelmask, psf->u.cbuf) ; + } ; + + bytesread += psf_binheader_readf (psf, "422", &(wav_fmt->ext.esf.esf_field1), &(wav_fmt->ext.esf.esf_field2), &(wav_fmt->ext.esf.esf_field3)) ; + + /* compare the esf_fields with each known GUID? and print? */ + psf_log_printf (psf, " Subformat\n") ; + psf_log_printf (psf, " esf_field1 : 0x%X\n", wav_fmt->ext.esf.esf_field1) ; + psf_log_printf (psf, " esf_field2 : 0x%X\n", wav_fmt->ext.esf.esf_field2) ; + psf_log_printf (psf, " esf_field3 : 0x%X\n", wav_fmt->ext.esf.esf_field3) ; + psf_log_printf (psf, " esf_field4 : ") ; + for (k = 0 ; k < 8 ; k++) + { bytesread += psf_binheader_readf (psf, "1", &(wav_fmt->ext.esf.esf_field4 [k])) ; + psf_log_printf (psf, "0x%X ", wav_fmt->ext.esf.esf_field4 [k] & 0xFF) ; + } ; + psf_log_printf (psf, "\n") ; + psf->bytewidth = BITWIDTH2BYTES (wav_fmt->ext.bitwidth) ; + + /* Compare GUIDs for known ones. */ + if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_PCM)) + { psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ; + psf_log_printf (psf, " format : pcm\n") ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MS_ADPCM)) + { psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM) ; + psf_log_printf (psf, " format : ms adpcm\n") ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_IEEE_FLOAT)) + { psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ; + psf_log_printf (psf, " format : IEEE float\n") ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_ALAW)) + { psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ALAW) ; + psf_log_printf (psf, " format : A-law\n") ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MULAW)) + { psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ULAW) ; + psf_log_printf (psf, " format : u-law\n") ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM)) + { psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ; + psf_log_printf (psf, " format : pcm (Ambisonic B)\n") ; + wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ; + } + else if (wavex_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT)) + { psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ; + psf_log_printf (psf, " format : IEEE float (Ambisonic B)\n") ; + wpriv->wavex_ambisonic = SF_AMBISONIC_B_FORMAT ; + } + else + return SFE_UNIMPLEMENTED ; + + break ; + + case WAVE_FORMAT_G721_ADPCM : + psf_log_printf (psf, " Bytes/sec : %d\n", wav_fmt->g72x.bytespersec) ; + if (fmtsize >= 20) + { bytesread += psf_binheader_readf (psf, "22", &(wav_fmt->g72x.extrabytes), &(wav_fmt->g72x.auxblocksize)) ; + if (wav_fmt->g72x.extrabytes == 0) + psf_log_printf (psf, " Extra Bytes : %d (should be 2)\n", wav_fmt->g72x.extrabytes) ; + else + psf_log_printf (psf, " Extra Bytes : %d\n", wav_fmt->g72x.extrabytes) ; + psf_log_printf (psf, " Aux Blk Size : %d\n", wav_fmt->g72x.auxblocksize) ; + } + else if (fmtsize == 18) + { bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->g72x.extrabytes)) ; + psf_log_printf (psf, " Extra Bytes : %d%s\n", wav_fmt->g72x.extrabytes, wav_fmt->g72x.extrabytes != 0 ? " (should be 0)" : "") ; + } + else + psf_log_printf (psf, "*** 'fmt ' chunk should be bigger than this!\n") ; + break ; + + default : + psf_log_printf (psf, "*** No 'fmt ' chunk dumper for this format!\n") ; + return SFE_WAV_BAD_FMT ; + } ; + + if (bytesread > fmtsize) + { psf_log_printf (psf, "*** wav_w64_read_fmt_chunk (bytesread > fmtsize)\n") ; + return SFE_WAV_BAD_FMT ; + } + else + psf_binheader_readf (psf, "j", fmtsize - bytesread) ; + + psf->blockwidth = wav_fmt->min.channels * psf->bytewidth ; + + return 0 ; +} /* wav_w64_read_fmt_chunk */ + +void +wavex_write_guid (SF_PRIVATE *psf, const EXT_SUBFORMAT * subformat) +{ + psf_binheader_writef (psf, "422b", subformat->esf_field1, + subformat->esf_field2, subformat->esf_field3, + subformat->esf_field4, make_size_t (8)) ; +} /* wavex_write_guid */ + + +int +wavex_gen_channel_mask (const int *chan_map, int channels) +{ int chan, mask = 0, bit = -1, last_bit = -1 ; + + if (chan_map == NULL) + return 0 ; + + for (chan = 0 ; chan < channels ; chan ++) + { int k ; + + for (k = bit + 1 ; k < ARRAY_LEN (channel_mask_bits) ; k++) + if (chan_map [chan] == channel_mask_bits [k].id) + { bit = k ; + break ; + } ; + + /* Check for bad sequence. */ + if (bit <= last_bit) + return 0 ; + + mask += 1 << bit ; + last_bit = bit ; + } ; + + return mask ; +} /* wavex_gen_channel_mask */ + +void +wav_w64_analyze (SF_PRIVATE *psf) +{ AUDIO_DETECT ad ; + int format = 0 ; + + if (psf->is_pipe) + { psf_log_printf (psf, "*** Error : Reading from a pipe. Can't analyze data section to figure out real data format.\n\n") ; + return ; + } ; + + psf_log_printf (psf, "---------------------------------------------------\n" + "Format is known to be broken. Using detection code.\n") ; + + /* Code goes here. */ + ad.endianness = SF_ENDIAN_LITTLE ; + ad.channels = psf->sf.channels ; + + psf_fseek (psf, 3 * 4 * 50, SEEK_SET) ; + + while (psf_fread (psf->u.ucbuf, 1, 4096, psf) == 4096) + { format = audio_detect (psf, &ad, psf->u.ucbuf, 4096) ; + if (format != 0) + break ; + } ; + + /* Seek to start of DATA section. */ + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if (format == 0) + { psf_log_printf (psf, "wav_w64_analyze : detection failed.\n") ; + return ; + } ; + + switch (format) + { case SF_FORMAT_PCM_32 : + case SF_FORMAT_FLOAT : + psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ; + psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ; + psf->bytewidth = 4 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + break ; + + case SF_FORMAT_PCM_24 : + psf_log_printf (psf, "wav_w64_analyze : found format : 0x%X\n", format) ; + psf->sf.format = (psf->sf.format & ~SF_FORMAT_SUBMASK) + format ; + psf->bytewidth = 3 ; + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + break ; + + default : + psf_log_printf (psf, "wav_w64_analyze : unhandled format : 0x%X\n", format) ; + break ; + } ; + + return ; +} /* wav_w64_analyze */ + +/*============================================================================== +*/ + +typedef struct +{ int ID ; + const char *name ; +} WAV_FORMAT_DESC ; + +#define STR(x) #x +#define FORMAT_TYPE(x) { x, STR (x) } + +static WAV_FORMAT_DESC wave_descs [] = +{ FORMAT_TYPE (WAVE_FORMAT_PCM), + FORMAT_TYPE (WAVE_FORMAT_MS_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_IEEE_FLOAT), + FORMAT_TYPE (WAVE_FORMAT_VSELP), + FORMAT_TYPE (WAVE_FORMAT_IBM_CVSD), + FORMAT_TYPE (WAVE_FORMAT_ALAW), + FORMAT_TYPE (WAVE_FORMAT_MULAW), + FORMAT_TYPE (WAVE_FORMAT_OKI_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_IMA_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_MEDIASPACE_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_SIERRA_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_G723_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_DIGISTD), + FORMAT_TYPE (WAVE_FORMAT_DIGIFIX), + FORMAT_TYPE (WAVE_FORMAT_DIALOGIC_OKI_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_MEDIAVISION_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_CU_CODEC), + FORMAT_TYPE (WAVE_FORMAT_YAMAHA_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_SONARC), + FORMAT_TYPE (WAVE_FORMAT_DSPGROUP_TRUESPEECH), + FORMAT_TYPE (WAVE_FORMAT_ECHOSC1), + FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF36), + FORMAT_TYPE (WAVE_FORMAT_APTX), + FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF10), + FORMAT_TYPE (WAVE_FORMAT_PROSODY_1612), + FORMAT_TYPE (WAVE_FORMAT_LRC), + FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC2), + FORMAT_TYPE (WAVE_FORMAT_GSM610), + FORMAT_TYPE (WAVE_FORMAT_MSNAUDIO), + FORMAT_TYPE (WAVE_FORMAT_ANTEX_ADPCME), + FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_VQLPC), + FORMAT_TYPE (WAVE_FORMAT_DIGIREAL), + FORMAT_TYPE (WAVE_FORMAT_DIGIADPCM), + FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_CR10), + FORMAT_TYPE (WAVE_FORMAT_NMS_VBXADPCM), + FORMAT_TYPE (WAVE_FORMAT_ROLAND_RDAC), + FORMAT_TYPE (WAVE_FORMAT_ECHOSC3), + FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_DIGITALK), + FORMAT_TYPE (WAVE_FORMAT_XEBEC), + FORMAT_TYPE (WAVE_FORMAT_G721_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_G728_CELP), + FORMAT_TYPE (WAVE_FORMAT_MSG723), + FORMAT_TYPE (WAVE_FORMAT_MPEG), + FORMAT_TYPE (WAVE_FORMAT_RT24), + FORMAT_TYPE (WAVE_FORMAT_PAC), + FORMAT_TYPE (WAVE_FORMAT_MPEGLAYER3), + FORMAT_TYPE (WAVE_FORMAT_LUCENT_G723), + FORMAT_TYPE (WAVE_FORMAT_CIRRUS), + FORMAT_TYPE (WAVE_FORMAT_ESPCM), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE), + FORMAT_TYPE (WAVE_FORMAT_CANOPUS_ATRAC), + FORMAT_TYPE (WAVE_FORMAT_G726_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_G722_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_DSAT), + FORMAT_TYPE (WAVE_FORMAT_DSAT_DISPLAY), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_BYTE_ALIGNED), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC8), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC10), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC16), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC20), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT24), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29HW), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR12), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR18), + FORMAT_TYPE (WAVE_FORMAT_VOXWARE_TQ40), + FORMAT_TYPE (WAVE_FORMAT_SOFTSOUND), + FORMAT_TYPE (WAVE_FORMAT_VOXARE_TQ60), + FORMAT_TYPE (WAVE_FORMAT_MSRT24), + FORMAT_TYPE (WAVE_FORMAT_G729A), + FORMAT_TYPE (WAVE_FORMAT_MVI_MV12), + FORMAT_TYPE (WAVE_FORMAT_DF_G726), + FORMAT_TYPE (WAVE_FORMAT_DF_GSM610), + FORMAT_TYPE (WAVE_FORMAT_ONLIVE), + FORMAT_TYPE (WAVE_FORMAT_SBC24), + FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC3_SPDIF), + FORMAT_TYPE (WAVE_FORMAT_ZYXEL_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_PHILIPS_LPCBB), + FORMAT_TYPE (WAVE_FORMAT_PACKED), + FORMAT_TYPE (WAVE_FORMAT_RHETOREX_ADPCM), + FORMAT_TYPE (IBM_FORMAT_MULAW), + FORMAT_TYPE (IBM_FORMAT_ALAW), + FORMAT_TYPE (IBM_FORMAT_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_VIVO_G723), + FORMAT_TYPE (WAVE_FORMAT_VIVO_SIREN), + FORMAT_TYPE (WAVE_FORMAT_DIGITAL_G723), + FORMAT_TYPE (WAVE_FORMAT_CREATIVE_ADPCM), + FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH8), + FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH10), + FORMAT_TYPE (WAVE_FORMAT_QUARTERDECK), + FORMAT_TYPE (WAVE_FORMAT_FM_TOWNS_SND), + FORMAT_TYPE (WAVE_FORMAT_BZV_DIGITAL), + FORMAT_TYPE (WAVE_FORMAT_VME_VMPCM), + FORMAT_TYPE (WAVE_FORMAT_OLIGSM), + FORMAT_TYPE (WAVE_FORMAT_OLIADPCM), + FORMAT_TYPE (WAVE_FORMAT_OLICELP), + FORMAT_TYPE (WAVE_FORMAT_OLISBC), + FORMAT_TYPE (WAVE_FORMAT_OLIOPR), + FORMAT_TYPE (WAVE_FORMAT_LH_CODEC), + FORMAT_TYPE (WAVE_FORMAT_NORRIS), + FORMAT_TYPE (WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS), + FORMAT_TYPE (WAVE_FORMAT_DVM), + FORMAT_TYPE (WAVE_FORMAT_INTERWAV_VSC112), + FORMAT_TYPE (WAVE_FORMAT_IPP_ITU_G_723_1), + FORMAT_TYPE (WAVE_FORMAT_EXTENSIBLE), +} ; + +char const* +wav_w64_format_str (int k) +{ int lower, upper, mid ; + + lower = -1 ; + upper = sizeof (wave_descs) / sizeof (WAV_FORMAT_DESC) ; + + /* binary search */ + if ((wave_descs [0].ID <= k) && (k <= wave_descs [upper - 1].ID)) + { + while (lower + 1 < upper) + { mid = (upper + lower) / 2 ; + + if (k == wave_descs [mid].ID) + return wave_descs [mid].name ; + if (k < wave_descs [mid].ID) + upper = mid ; + else + lower = mid ; + } ; + } ; + + return "Unknown format" ; +} /* wav_w64_format_str */ + +int +wav_w64_srate2blocksize (int srate_chan_product) +{ if (srate_chan_product < 12000) + return 256 ; + if (srate_chan_product < 23000) + return 512 ; + if (srate_chan_product < 44000) + return 1024 ; + return 2048 ; +} /* srate2blocksize */ diff --git a/src/wav_w64.h b/src/wav_w64.h new file mode 100644 index 0000000..9b2914a --- /dev/null +++ b/src/wav_w64.h @@ -0,0 +1,295 @@ +/* +** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* This file contains definitions commong to WAV and W64 files. */ + + +#ifndef WAV_W64_H_INCLUDED +#define WAV_W64_H_INCLUDED + +/*------------------------------------------------------------------------------ +** List of known WAV format tags +*/ + +enum +{ + /* keep sorted for wav_w64_format_str() */ + WAVE_FORMAT_UNKNOWN = 0x0000, /* Microsoft Corporation */ + WAVE_FORMAT_PCM = 0x0001, /* Microsoft PCM format */ + WAVE_FORMAT_MS_ADPCM = 0x0002, /* Microsoft ADPCM */ + WAVE_FORMAT_IEEE_FLOAT = 0x0003, /* Micrososft 32 bit float format */ + WAVE_FORMAT_VSELP = 0x0004, /* Compaq Computer Corporation */ + WAVE_FORMAT_IBM_CVSD = 0x0005, /* IBM Corporation */ + WAVE_FORMAT_ALAW = 0x0006, /* Microsoft Corporation */ + WAVE_FORMAT_MULAW = 0x0007, /* Microsoft Corporation */ + WAVE_FORMAT_OKI_ADPCM = 0x0010, /* OKI */ + WAVE_FORMAT_IMA_ADPCM = 0x0011, /* Intel Corporation */ + WAVE_FORMAT_MEDIASPACE_ADPCM = 0x0012, /* Videologic */ + WAVE_FORMAT_SIERRA_ADPCM = 0x0013, /* Sierra Semiconductor Corp */ + WAVE_FORMAT_G723_ADPCM = 0x0014, /* Antex Electronics Corporation */ + WAVE_FORMAT_DIGISTD = 0x0015, /* DSP Solutions, Inc. */ + WAVE_FORMAT_DIGIFIX = 0x0016, /* DSP Solutions, Inc. */ + WAVE_FORMAT_DIALOGIC_OKI_ADPCM = 0x0017, /* Dialogic Corporation */ + WAVE_FORMAT_MEDIAVISION_ADPCM = 0x0018, /* Media Vision, Inc. */ + WAVE_FORMAT_CU_CODEC = 0x0019, /* Hewlett-Packard Company */ + WAVE_FORMAT_YAMAHA_ADPCM = 0x0020, /* Yamaha Corporation of America */ + WAVE_FORMAT_SONARC = 0x0021, /* Speech Compression */ + WAVE_FORMAT_DSPGROUP_TRUESPEECH = 0x0022, /* DSP Group, Inc */ + WAVE_FORMAT_ECHOSC1 = 0x0023, /* Echo Speech Corporation */ + WAVE_FORMAT_AUDIOFILE_AF36 = 0x0024, /* Audiofile, Inc. */ + WAVE_FORMAT_APTX = 0x0025, /* Audio Processing Technology */ + WAVE_FORMAT_AUDIOFILE_AF10 = 0x0026, /* Audiofile, Inc. */ + WAVE_FORMAT_PROSODY_1612 = 0x0027, /* Aculab plc */ + WAVE_FORMAT_LRC = 0x0028, /* Merging Technologies S.A. */ + WAVE_FORMAT_DOLBY_AC2 = 0x0030, /* Dolby Laboratories */ + WAVE_FORMAT_GSM610 = 0x0031, /* Microsoft Corporation */ + WAVE_FORMAT_MSNAUDIO = 0x0032, /* Microsoft Corporation */ + WAVE_FORMAT_ANTEX_ADPCME = 0x0033, /* Antex Electronics Corporation */ + WAVE_FORMAT_CONTROL_RES_VQLPC = 0x0034, /* Control Resources Limited */ + WAVE_FORMAT_DIGIREAL = 0x0035, /* DSP Solutions, Inc. */ + WAVE_FORMAT_DIGIADPCM = 0x0036, /* DSP Solutions, Inc. */ + WAVE_FORMAT_CONTROL_RES_CR10 = 0x0037, /* Control Resources Limited */ + WAVE_FORMAT_NMS_VBXADPCM = 0x0038, /* Natural MicroSystems */ + WAVE_FORMAT_ROLAND_RDAC = 0x0039, /* Roland */ + WAVE_FORMAT_ECHOSC3 = 0x003A, /* Echo Speech Corporation */ + WAVE_FORMAT_ROCKWELL_ADPCM = 0x003B, /* Rockwell International */ + WAVE_FORMAT_ROCKWELL_DIGITALK = 0x003C, /* Rockwell International */ + WAVE_FORMAT_XEBEC = 0x003D, /* Xebec Multimedia Solutions Limited */ + WAVE_FORMAT_G721_ADPCM = 0x0040, /* Antex Electronics Corporation */ + WAVE_FORMAT_G728_CELP = 0x0041, /* Antex Electronics Corporation */ + WAVE_FORMAT_MSG723 = 0x0042, /* Microsoft Corporation */ + WAVE_FORMAT_MPEG = 0x0050, /* Microsoft Corporation */ + WAVE_FORMAT_RT24 = 0x0052, /* InSoft Inc. */ + WAVE_FORMAT_PAC = 0x0053, /* InSoft Inc. */ + WAVE_FORMAT_MPEGLAYER3 = 0x0055, /* MPEG 3 Layer 1 */ + WAVE_FORMAT_LUCENT_G723 = 0x0059, /* Lucent Technologies */ + WAVE_FORMAT_CIRRUS = 0x0060, /* Cirrus Logic */ + WAVE_FORMAT_ESPCM = 0x0061, /* ESS Technology */ + WAVE_FORMAT_VOXWARE = 0x0062, /* Voxware Inc */ + WAVE_FORMAT_CANOPUS_ATRAC = 0x0063, /* Canopus, Co., Ltd. */ + WAVE_FORMAT_G726_ADPCM = 0x0064, /* APICOM */ + WAVE_FORMAT_G722_ADPCM = 0x0065, /* APICOM */ + WAVE_FORMAT_DSAT = 0x0066, /* Microsoft Corporation */ + WAVE_FORMAT_DSAT_DISPLAY = 0x0067, /* Microsoft Corporation */ + WAVE_FORMAT_VOXWARE_BYTE_ALIGNED = 0x0069, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_AC8 = 0x0070, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_AC10 = 0x0071, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_AC16 = 0x0072, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_AC20 = 0x0073, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_RT24 = 0x0074, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_RT29 = 0x0075, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_RT29HW = 0x0076, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_VR12 = 0x0077, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_VR18 = 0x0078, /* Voxware Inc. */ + WAVE_FORMAT_VOXWARE_TQ40 = 0x0079, /* Voxware Inc. */ + WAVE_FORMAT_SOFTSOUND = 0x0080, /* Softsound, Ltd. */ + WAVE_FORMAT_VOXARE_TQ60 = 0x0081, /* Voxware Inc. */ + WAVE_FORMAT_MSRT24 = 0x0082, /* Microsoft Corporation */ + WAVE_FORMAT_G729A = 0x0083, /* AT&T Laboratories */ + WAVE_FORMAT_MVI_MV12 = 0x0084, /* Motion Pixels */ + WAVE_FORMAT_DF_G726 = 0x0085, /* DataFusion Systems (Pty) (Ltd) */ + WAVE_FORMAT_DF_GSM610 = 0x0086, /* DataFusion Systems (Pty) (Ltd) */ + /* removed because duplicate */ + /* WAVE_FORMAT_ISIAUDIO = 0x0088, */ /* Iterated Systems, Inc. */ + WAVE_FORMAT_ONLIVE = 0x0089, /* OnLive! Technologies, Inc. */ + WAVE_FORMAT_SBC24 = 0x0091, /* Siemens Business Communications Systems */ + WAVE_FORMAT_DOLBY_AC3_SPDIF = 0x0092, /* Sonic Foundry */ + WAVE_FORMAT_ZYXEL_ADPCM = 0x0097, /* ZyXEL Communications, Inc. */ + WAVE_FORMAT_PHILIPS_LPCBB = 0x0098, /* Philips Speech Processing */ + WAVE_FORMAT_PACKED = 0x0099, /* Studer Professional Audio AG */ + WAVE_FORMAT_RHETOREX_ADPCM = 0x0100, /* Rhetorex, Inc. */ + + /* removed because of the following */ + /* WAVE_FORMAT_IRAT = 0x0101,*/ /* BeCubed Software Inc. */ + + /* these three are unofficial */ + IBM_FORMAT_MULAW = 0x0101, /* IBM mu-law format */ + IBM_FORMAT_ALAW = 0x0102, /* IBM a-law format */ + IBM_FORMAT_ADPCM = 0x0103, /* IBM AVC Adaptive Differential PCM format */ + + WAVE_FORMAT_VIVO_G723 = 0x0111, /* Vivo Software */ + WAVE_FORMAT_VIVO_SIREN = 0x0112, /* Vivo Software */ + WAVE_FORMAT_DIGITAL_G723 = 0x0123, /* Digital Equipment Corporation */ + WAVE_FORMAT_CREATIVE_ADPCM = 0x0200, /* Creative Labs, Inc */ + WAVE_FORMAT_CREATIVE_FASTSPEECH8 = 0x0202, /* Creative Labs, Inc */ + WAVE_FORMAT_CREATIVE_FASTSPEECH10 = 0x0203, /* Creative Labs, Inc */ + WAVE_FORMAT_QUARTERDECK = 0x0220, /* Quarterdeck Corporation */ + WAVE_FORMAT_FM_TOWNS_SND = 0x0300, /* Fujitsu Corporation */ + WAVE_FORMAT_BZV_DIGITAL = 0x0400, /* Brooktree Corporation */ + WAVE_FORMAT_VME_VMPCM = 0x0680, /* AT&T Labs, Inc. */ + WAVE_FORMAT_OLIGSM = 0x1000, /* Ing C. Olivetti & C., S.p.A. */ + WAVE_FORMAT_OLIADPCM = 0x1001, /* Ing C. Olivetti & C., S.p.A. */ + WAVE_FORMAT_OLICELP = 0x1002, /* Ing C. Olivetti & C., S.p.A. */ + WAVE_FORMAT_OLISBC = 0x1003, /* Ing C. Olivetti & C., S.p.A. */ + WAVE_FORMAT_OLIOPR = 0x1004, /* Ing C. Olivetti & C., S.p.A. */ + WAVE_FORMAT_LH_CODEC = 0x1100, /* Lernout & Hauspie */ + WAVE_FORMAT_NORRIS = 0x1400, /* Norris Communications, Inc. */ + /* removed because duplicate */ + /* WAVE_FORMAT_ISIAUDIO = 0x1401, */ /* AT&T Labs, Inc. */ + WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS = 0x1500, /* AT&T Labs, Inc. */ + WAVE_FORMAT_DVM = 0x2000, /* FAST Multimedia AG */ + WAVE_FORMAT_INTERWAV_VSC112 = 0x7150, /* ????? */ + + WAVE_FORMAT_IPP_ITU_G_723_1 = 0x7230, /* Intel Performance Primitives g723 codec. */ + + WAVE_FORMAT_EXTENSIBLE = 0xFFFE +} ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; +} MIN_WAV_FMT ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short dummy ; +} WAV_FMT_SIZE20 ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short samplesperblock ; + unsigned short numcoeffs ; + struct + { short coeff1 ; + short coeff2 ; + } coeffs [7] ; +} MS_ADPCM_WAV_FMT ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short samplesperblock ; +} IMA_ADPCM_WAV_FMT ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short auxblocksize ; +} G72x_ADPCM_WAV_FMT ; + + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short samplesperblock ; +} GSM610_WAV_FMT ; + +typedef struct +{ unsigned int esf_field1 ; + unsigned short esf_field2 ; + unsigned short esf_field3 ; + char esf_field4 [8] ; +} EXT_SUBFORMAT ; + +typedef struct +{ unsigned short format ; + unsigned short channels ; + unsigned int samplerate ; + unsigned int bytespersec ; + unsigned short blockalign ; + unsigned short bitwidth ; + unsigned short extrabytes ; + unsigned short validbits ; + unsigned int channelmask ; + EXT_SUBFORMAT esf ; +} EXTENSIBLE_WAV_FMT ; + +typedef union +{ unsigned short format ; + MIN_WAV_FMT min ; + IMA_ADPCM_WAV_FMT ima ; + MS_ADPCM_WAV_FMT msadpcm ; + G72x_ADPCM_WAV_FMT g72x ; + EXTENSIBLE_WAV_FMT ext ; + GSM610_WAV_FMT gsm610 ; + WAV_FMT_SIZE20 size20 ; + char padding [512] ; +} WAV_FMT ; + +typedef struct +{ int frames ; +} FACT_CHUNK ; + +typedef struct +{ /* For ambisonic commands */ + int wavex_ambisonic ; + unsigned wavex_channelmask ; + + /* Set to true when 'fmt ' chunk is ambiguous.*/ + int fmt_is_broken ; + WAV_FMT wav_fmt ; +} WAV_PRIVATE ; + +#define WAV_W64_GSM610_BLOCKSIZE 65 +#define WAV_W64_GSM610_SAMPLES 320 + +/*------------------------------------------------------------------------------------ +** Functions defined in wav_ms_adpcm.c +*/ + +#define MSADPCM_ADAPT_COEFF_COUNT 7 + +void msadpcm_write_adapt_coeffs (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------------ +** Functions defined in wav_w64.c +*/ + +int wav_w64_srate2blocksize (int srate_chan_product) ; +char const* wav_w64_format_str (int k) ; +int wav_w64_read_fmt_chunk (SF_PRIVATE *psf, int fmtsize) ; +void wavex_write_guid (SF_PRIVATE *psf, const EXT_SUBFORMAT * subformat) ; +void wav_w64_analyze (SF_PRIVATE *psf) ; +int wavex_gen_channel_mask (const int *chan_map, int channels) ; + +int wav_read_bext_chunk (SF_PRIVATE *psf, unsigned int chunksize) ; +int wav_write_bext_chunk (SF_PRIVATE *psf) ; + +#endif + diff --git a/src/windows.c b/src/windows.c new file mode 100644 index 0000000..387afdd --- /dev/null +++ b/src/windows.c @@ -0,0 +1,93 @@ +/* +** Copyright (C) 2009-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +/* +** This needs to be a separate file so that we don't have to include +** <windows.h> elsewhere (too many symbol clashes). +*/ + + +#include "sfconfig.h" + +#if OS_IS_WIN32 +#include <windows.h> + +#define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1 +#include "sndfile.h" +#include "common.h" + +extern int sf_errno ; + +static void copy_filename (SF_PRIVATE * psf, LPCWSTR wpath) ; + +SNDFILE* +sf_wchar_open (LPCWSTR wpath, int mode, SF_INFO *sfinfo) +{ SF_PRIVATE *psf ; + char utf8name [512] ; + + if ((psf = calloc (1, sizeof (SF_PRIVATE))) == NULL) + { sf_errno = SFE_MALLOC_FAILED ; + return NULL ; + } ; + + memset (psf, 0, sizeof (SF_PRIVATE)) ; + psf_init_files (psf) ; + + if (WideCharToMultiByte (CP_UTF8, 0, wpath, -1, utf8name, sizeof (utf8name), NULL, NULL) == 0) + psf->file.path.wc [0] = 0 ; + + psf_log_printf (psf, "File : '%s' (utf-8 converted from ucs-2)\n", utf8name) ; + + copy_filename (psf, wpath) ; + psf->file.use_wchar = SF_TRUE ; + psf->file.mode = mode ; + + psf->error = psf_fopen (psf) ; + + return psf_open_file (psf, sfinfo) ; +} /* sf_wchar_open */ + + +static void +copy_filename (SF_PRIVATE *psf, LPCWSTR wpath) +{ const wchar_t *cwcptr ; + wchar_t *wcptr ; + + wcsncpy (psf->file.path.wc, wpath, ARRAY_LEN (psf->file.path.wc)) ; + psf->file.path.wc [ARRAY_LEN (psf->file.path.wc) - 1] = 0 ; + if ((cwcptr = wcsrchr (wpath, '/')) || (cwcptr = wcsrchr (wpath, '\\'))) + cwcptr ++ ; + else + cwcptr = wpath ; + + wcsncpy (psf->file.name.wc, cwcptr, ARRAY_LEN (psf->file.name.wc)) ; + psf->file.name.wc [ARRAY_LEN (psf->file.name.wc) - 1] = 0 ; + + /* Now grab the directory. */ + wcsncpy (psf->file.dir.wc, wpath, ARRAY_LEN (psf->file.dir.wc)) ; + psf->file.dir.wc [ARRAY_LEN (psf->file.dir.wc) - 1] = 0 ; + + if ((wcptr = wcsrchr (psf->file.dir.wc, '/')) || (wcptr = wcsrchr (psf->file.dir.wc, '\\'))) + wcptr [1] = 0 ; + else + psf->file.dir.wc [0] = 0 ; + + return ; +} /* copy_filename */ + +#endif diff --git a/src/wve.c b/src/wve.c new file mode 100644 index 0000000..c13e7ab --- /dev/null +++ b/src/wve.c @@ -0,0 +1,209 @@ +/* +** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** Copyright (C) 2007 Reuben Thomas +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +/*------------------------------------------------------------------------------ +** Macros to handle big/little endian issues, and other magic numbers. +*/ + +#define ALAW_MARKER MAKE_MARKER ('A', 'L', 'a', 'w') +#define SOUN_MARKER MAKE_MARKER ('S', 'o', 'u', 'n') +#define DFIL_MARKER MAKE_MARKER ('d', 'F', 'i', 'l') +#define ESSN_MARKER MAKE_MARKER ('e', '*', '*', '\0') +#define PSION_VERSION ((unsigned short) 3856) +#define PSION_DATAOFFSET 0x20 + +/*------------------------------------------------------------------------------ +** Private static functions. +*/ + +static int wve_read_header (SF_PRIVATE *psf) ; +static int wve_write_header (SF_PRIVATE *psf, int calc_length) ; +static int wve_close (SF_PRIVATE *psf) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +wve_open (SF_PRIVATE *psf) +{ int error = 0 ; + + if (psf->is_pipe) + return SFE_WVE_NO_PIPE ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = wve_read_header (psf))) + return error ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_WVE) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_BIG ; + + if ((error = wve_write_header (psf, SF_FALSE))) + return error ; + + psf->write_header = wve_write_header ; + } ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + psf->container_close = wve_close ; + + error = alaw_init (psf) ; + + return error ; +} /* wve_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +wve_read_header (SF_PRIVATE *psf) +{ int marker ; + unsigned short version, padding, repeats, trash ; + unsigned datalength ; + + /* Set position to start of file to begin reading header. */ + psf_binheader_readf (psf, "pm", 0, &marker) ; + if (marker != ALAW_MARKER) + { psf_log_printf (psf, "Could not find '%M'\n", ALAW_MARKER) ; + return SFE_WVE_NOT_WVE ; + } ; + + psf_binheader_readf (psf, "m", &marker) ; + if (marker != SOUN_MARKER) + { psf_log_printf (psf, "Could not find '%M'\n", SOUN_MARKER) ; + return SFE_WVE_NOT_WVE ; + } ; + + psf_binheader_readf (psf, "m", &marker) ; + if (marker != DFIL_MARKER) + { psf_log_printf (psf, "Could not find '%M'\n", DFIL_MARKER) ; + return SFE_WVE_NOT_WVE ; + } ; + + psf_binheader_readf (psf, "m", &marker) ; + if (marker != ESSN_MARKER) + { psf_log_printf (psf, "Could not find '%M'\n", ESSN_MARKER) ; + return SFE_WVE_NOT_WVE ; + } ; + + psf_binheader_readf (psf, "E2", &version) ; + + psf_log_printf (psf, "Psion Palmtop Alaw (.wve)\n" + " Sample Rate : 8000\n" + " Channels : 1\n" + " Encoding : A-law\n") ; + + if (version != PSION_VERSION) + psf_log_printf (psf, "Psion version %d should be %d\n", version, PSION_VERSION) ; + + psf_binheader_readf (psf, "E4", &datalength) ; + psf->dataoffset = PSION_DATAOFFSET ; + if (datalength != psf->filelength - psf->dataoffset) + { psf->datalength = psf->filelength - psf->dataoffset ; + psf_log_printf (psf, "Data length %d should be %D\n", datalength, psf->datalength) ; + } + else + psf->datalength = datalength ; + + psf_binheader_readf (psf, "E22222", &padding, &repeats, &trash, &trash, &trash) ; + + psf->sf.format = SF_FORMAT_WVE | SF_FORMAT_ALAW ; + psf->sf.samplerate = 8000 ; + psf->sf.frames = psf->datalength ; + psf->sf.channels = 1 ; + + return SFE_NO_ERROR ; +} /* wve_read_header */ + +/*------------------------------------------------------------------------------ +*/ + +static int +wve_write_header (SF_PRIVATE *psf, int calc_length) +{ sf_count_t current ; + unsigned datalen ; + + current = psf_ftell (psf) ; + + if (calc_length) + { psf->filelength = psf_get_filelen (psf) ; + + psf->datalength = psf->filelength - psf->dataoffset ; + if (psf->dataend) + psf->datalength -= psf->filelength - psf->dataend ; + + psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; + } ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + /* Write header. */ + datalen = psf->datalength ; + psf_binheader_writef (psf, "Emmmm", ALAW_MARKER, SOUN_MARKER, DFIL_MARKER, ESSN_MARKER) ; + psf_binheader_writef (psf, "E2422222", PSION_VERSION, datalen, 0, 0, 0, 0, 0) ; + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->sf.channels != 1) + return SFE_CHANNEL_COUNT ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* wve_write_header */ + +/*------------------------------------------------------------------------------ +*/ + +static int +wve_close (SF_PRIVATE *psf) +{ + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { /* Now we know for certain the length of the file we can re-write + ** the header. + */ + wve_write_header (psf, SF_TRUE) ; + } ; + + return 0 ; +} /* wve_close */ diff --git a/src/xi.c b/src/xi.c new file mode 100644 index 0000000..ee60a4b --- /dev/null +++ b/src/xi.c @@ -0,0 +1,1197 @@ +/* +** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU Lesser General Public License as published by +** the Free Software Foundation; either version 2.1 of the License, or +** (at your option) any later version. +** +** This program is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +** GNU Lesser General Public License for more details. +** +** You should have received a copy of the GNU Lesser General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#include "sfconfig.h" + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <ctype.h> +#include <math.h> + +#include "sndfile.h" +#include "sfendian.h" +#include "common.h" + +#define MAX_XI_SAMPLES 16 + +/*------------------------------------------------------------------------------ +** Private static functions and tyepdefs. +*/ + +typedef struct +{ /* Warning, this filename is NOT nul terminated. */ + char filename [22] ; + char software [20] ; + char sample_name [22] ; + + int loop_begin, loop_end ; + int sample_flags ; + + /* Data for encoder and decoder. */ + short last_16 ; +} XI_PRIVATE ; + +static int xi_close (SF_PRIVATE *psf) ; +static int xi_write_header (SF_PRIVATE *psf, int calc_length) ; +static int xi_read_header (SF_PRIVATE *psf) ; +static int dpcm_init (SF_PRIVATE *psf) ; + + +static sf_count_t dpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; + +/*------------------------------------------------------------------------------ +** Public function. +*/ + +int +xi_open (SF_PRIVATE *psf) +{ XI_PRIVATE *pxi ; + int subformat, error = 0 ; + + if (psf->is_pipe) + return SFE_XI_NO_PIPE ; + + if (psf->codec_data) + pxi = psf->codec_data ; + else if ((pxi = calloc (1, sizeof (XI_PRIVATE))) == NULL) + return SFE_MALLOC_FAILED ; + + psf->codec_data = pxi ; + + if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) + { if ((error = xi_read_header (psf))) + return error ; + } ; + + subformat = SF_CODEC (psf->sf.format) ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_XI) + return SFE_BAD_OPEN_FORMAT ; + + psf->endian = SF_ENDIAN_LITTLE ; + psf->sf.channels = 1 ; /* Always mono */ + psf->sf.samplerate = 44100 ; /* Always */ + + /* Set up default instrument and software name. */ + memcpy (pxi->filename, "Default Name ", sizeof (pxi->filename)) ; + memcpy (pxi->software, PACKAGE "-" VERSION " ", sizeof (pxi->software)) ; + + memset (pxi->sample_name, 0, sizeof (pxi->sample_name)) ; + snprintf (pxi->sample_name, sizeof (pxi->sample_name), "%s", "Sample #1") ; + + pxi->sample_flags = (subformat == SF_FORMAT_DPCM_16) ? 16 : 0 ; + + if (xi_write_header (psf, SF_FALSE)) + return psf->error ; + + psf->write_header = xi_write_header ; + } ; + + psf->container_close = xi_close ; + psf->seek = dpcm_seek ; + + psf->sf.seekable = SF_FALSE ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + switch (subformat) + { case SF_FORMAT_DPCM_8 : /* 8-bit differential PCM. */ + case SF_FORMAT_DPCM_16 : /* 16-bit differential PCM. */ + error = dpcm_init (psf) ; + break ; + + default : break ; + } ; + + return error ; +} /* xi_open */ + +/*------------------------------------------------------------------------------ +*/ + +static int +xi_close (SF_PRIVATE * UNUSED (psf)) +{ + return 0 ; +} /* xi_close */ + +/*============================================================================== +*/ + +static sf_count_t dpcm_read_dsc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dsc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dsc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dsc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t dpcm_write_s2dsc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_i2dsc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_f2dsc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_d2dsc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static sf_count_t dpcm_read_dles2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dles2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dles2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; +static sf_count_t dpcm_read_dles2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; + +static sf_count_t dpcm_write_s2dles (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_i2dles (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_f2dles (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; +static sf_count_t dpcm_write_d2dles (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; + +static int +dpcm_init (SF_PRIVATE *psf) +{ if (psf->bytewidth == 0 || psf->sf.channels == 0) + return SFE_INTERNAL ; + + psf->blockwidth = psf->bytewidth * psf->sf.channels ; + + if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) + { switch (psf->bytewidth) + { case 1 : + psf->read_short = dpcm_read_dsc2s ; + psf->read_int = dpcm_read_dsc2i ; + psf->read_float = dpcm_read_dsc2f ; + psf->read_double = dpcm_read_dsc2d ; + break ; + case 2 : + psf->read_short = dpcm_read_dles2s ; + psf->read_int = dpcm_read_dles2i ; + psf->read_float = dpcm_read_dles2f ; + psf->read_double = dpcm_read_dles2d ; + break ; + default : + psf_log_printf (psf, "dpcm_init() returning SFE_UNIMPLEMENTED\n") ; + return SFE_UNIMPLEMENTED ; + } ; + } ; + + if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) + { switch (psf->bytewidth) + { case 1 : + psf->write_short = dpcm_write_s2dsc ; + psf->write_int = dpcm_write_i2dsc ; + psf->write_float = dpcm_write_f2dsc ; + psf->write_double = dpcm_write_d2dsc ; + break ; + case 2 : + psf->write_short = dpcm_write_s2dles ; + psf->write_int = dpcm_write_i2dles ; + psf->write_float = dpcm_write_f2dles ; + psf->write_double = dpcm_write_d2dles ; + break ; + default : + psf_log_printf (psf, "dpcm_init() returning SFE_UNIMPLEMENTED\n") ; + return SFE_UNIMPLEMENTED ; + } ; + } ; + + psf->filelength = psf_get_filelen (psf) ; + psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : + psf->filelength - psf->dataoffset ; + psf->sf.frames = psf->datalength / psf->blockwidth ; + + return 0 ; +} /* dpcm_init */ + +/*============================================================================== +*/ + +static sf_count_t +dpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) +{ XI_PRIVATE *pxi ; + int total, bufferlen, len ; + + if ((pxi = psf->codec_data) == NULL) + return SFE_INTERNAL ; + + if (psf->datalength < 0 || psf->dataoffset < 0) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (offset == 0) + { psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + pxi->last_16 = 0 ; + return 0 ; + } ; + + if (offset < 0 || offset > psf->sf.frames) + { psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + if (mode != SFM_READ) + { /* What to do about write??? */ + psf->error = SFE_BAD_SEEK ; + return PSF_SEEK_ERROR ; + } ; + + psf_fseek (psf, psf->dataoffset, SEEK_SET) ; + + if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_DPCM_16) + { total = offset ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (total > 0) + { len = (total > bufferlen) ? bufferlen : total ; + total -= dpcm_read_dles2s (psf, psf->u.sbuf, len) ; + } ; + } + else + { total = offset ; + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + while (total > 0) + { len = (total > bufferlen) ? bufferlen : total ; + total -= dpcm_read_dsc2s (psf, psf->u.sbuf, len) ; + } ; + } ; + + return offset ; +} /* dpcm_seek */ + + +static int +xi_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) +{ XI_PRIVATE *pxi ; + sf_count_t current ; + const char *string ; + + if ((pxi = psf->codec_data) == NULL) + return SFE_INTERNAL ; + + current = psf_ftell (psf) ; + + /* Reset the current header length to zero. */ + psf->header [0] = 0 ; + psf->headindex = 0 ; + psf_fseek (psf, 0, SEEK_SET) ; + + string = "Extended Instrument: " ; + psf_binheader_writef (psf, "b", string, strlen (string)) ; + psf_binheader_writef (psf, "b1", pxi->filename, sizeof (pxi->filename), 0x1A) ; + + /* Write software version and two byte XI version. */ + psf_binheader_writef (psf, "eb2", pxi->software, sizeof (pxi->software), (1 << 8) + 2) ; + + /* + ** Jump note numbers (96), volume envelope (48), pan envelope (48), + ** volume points (1), pan points (1) + */ + psf_binheader_writef (psf, "z", (size_t) (96 + 48 + 48 + 1 + 1)) ; + + /* Jump volume loop (3 bytes), pan loop (3), envelope flags (3), vibrato (3) + ** fade out (2), 22 unknown bytes, and then write sample_count (2 bytes). + */ + psf_binheader_writef (psf, "ez2z2", (size_t) (4 * 3), 0x1234, make_size_t (22), 1) ; + + pxi->loop_begin = 0 ; + pxi->loop_end = 0 ; + + psf_binheader_writef (psf, "et844", psf->sf.frames, pxi->loop_begin, pxi->loop_end) ; + + /* volume, fine tune, flags, pan, note, namelen */ + psf_binheader_writef (psf, "111111", 128, 0, pxi->sample_flags, 128, 0, strlen (pxi->sample_name)) ; + + psf_binheader_writef (psf, "b", pxi->sample_name, sizeof (pxi->sample_name)) ; + + + + + + /* Header construction complete so write it out. */ + psf_fwrite (psf->header, psf->headindex, 1, psf) ; + + if (psf->error) + return psf->error ; + + psf->dataoffset = psf->headindex ; + + if (current > 0) + psf_fseek (psf, current, SEEK_SET) ; + + return psf->error ; +} /* xi_write_header */ + +static int +xi_read_header (SF_PRIVATE *psf) +{ char buffer [64], name [32] ; + short version, fade_out, sample_count ; + int k, loop_begin, loop_end ; + int sample_sizes [MAX_XI_SAMPLES] ; + + psf_binheader_readf (psf, "pb", 0, buffer, 21) ; + + memset (sample_sizes, 0, sizeof (sample_sizes)) ; + + buffer [20] = 0 ; + if (strcmp (buffer, "Extended Instrument:") != 0) + return SFE_XI_BAD_HEADER ; + + memset (buffer, 0, sizeof (buffer)) ; + psf_binheader_readf (psf, "b", buffer, 23) ; + + if (buffer [22] != 0x1A) + return SFE_XI_BAD_HEADER ; + + buffer [22] = 0 ; + psf_log_printf (psf, "Extended Instrument : %s\n", buffer) ; + + psf_binheader_readf (psf, "be2", buffer, 20, &version) ; + buffer [19] = 0 ; + psf_log_printf (psf, "Software : %s\nVersion : %d.%02d\n", buffer, version / 256, version % 256) ; + + /* Jump note numbers (96), volume envelope (48), pan envelope (48), + ** volume points (1), pan points (1) + */ + psf_binheader_readf (psf, "j", 96 + 48 + 48 + 1 + 1) ; + + psf_binheader_readf (psf, "b", buffer, 12) ; + psf_log_printf (psf, "Volume Loop\n sustain : %u\n begin : %u\n end : %u\n", + buffer [0], buffer [1], buffer [2]) ; + psf_log_printf (psf, "Pan Loop\n sustain : %u\n begin : %u\n end : %u\n", + buffer [3], buffer [4], buffer [5]) ; + psf_log_printf (psf, "Envelope Flags\n volume : 0x%X\n pan : 0x%X\n", + buffer [6] & 0xFF, buffer [7] & 0xFF) ; + + psf_log_printf (psf, "Vibrato\n type : %u\n sweep : %u\n depth : %u\n rate : %u\n", + buffer [8], buffer [9], buffer [10], buffer [11]) ; + + /* + ** Read fade_out then jump reserved (2 bytes) and ???? (20 bytes) and + ** sample_count. + */ + psf_binheader_readf (psf, "e2j2", &fade_out, 2 + 20, &sample_count) ; + psf_log_printf (psf, "Fade out : %d\n", fade_out) ; + + /* XI file can contain up to 16 samples. */ + if (sample_count > MAX_XI_SAMPLES) + return SFE_XI_EXCESS_SAMPLES ; + + if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL) + return SFE_MALLOC_FAILED ; + + /* Log all data for each sample. */ + for (k = 0 ; k < sample_count ; k++) + { psf_binheader_readf (psf, "e444", &(sample_sizes [k]), &loop_begin, &loop_end) ; + + /* Read 5 know bytes, 1 unknown byte and 22 name bytes. */ + psf_binheader_readf (psf, "bb", buffer, 6, name, 22) ; + name [21] = 0 ; + + psf_log_printf (psf, "Sample #%d\n name : %s\n", k + 1, name) ; + + psf_log_printf (psf, " size : %d\n", sample_sizes [k]) ; + + + + psf_log_printf (psf, " loop\n begin : %d\n end : %d\n", loop_begin, loop_end) ; + + psf_log_printf (psf, " volume : %u\n f. tune : %d\n flags : 0x%02X ", + buffer [0] & 0xFF, buffer [1] & 0xFF, buffer [2] & 0xFF) ; + + psf_log_printf (psf, " (") ; + if (buffer [2] & 1) + psf_log_printf (psf, " Loop") ; + if (buffer [2] & 2) + psf_log_printf (psf, " PingPong") ; + psf_log_printf (psf, (buffer [2] & 16) ? " 16bit" : " 8bit") ; + psf_log_printf (psf, " )\n") ; + + psf_log_printf (psf, " pan : %u\n note : %d\n namelen : %d\n", + buffer [3] & 0xFF, buffer [4], buffer [5]) ; + + if (k != 0) + continue ; + + if (buffer [2] & 16) + { psf->sf.format = SF_FORMAT_XI | SF_FORMAT_DPCM_16 ; + psf->bytewidth = 2 ; + } + else + { psf->sf.format = SF_FORMAT_XI | SF_FORMAT_DPCM_8 ; + psf->bytewidth = 1 ; + } ; + } ; + + while (sample_count > 1 && sample_sizes [sample_count - 1] == 0) + sample_count -- ; + + /* Currently, we can only handle 1 sample per file. */ + + if (sample_count > 2) + { psf_log_printf (psf, "*** Sample count is less than 16 but more than 1.\n") ; + psf_log_printf (psf, " sample count : %d sample_sizes [%d] : %d\n", + sample_count, sample_count - 1, sample_sizes [sample_count - 1]) ; + return SFE_XI_EXCESS_SAMPLES ; + } ; + + psf->datalength = sample_sizes [0] ; + + psf->dataoffset = psf_ftell (psf) ; + if (psf->dataoffset < 0) + { psf_log_printf (psf, "*** Bad Data Offset : %D\n", psf->dataoffset) ; + return SFE_BAD_OFFSET ; + } ; + psf_log_printf (psf, "Data Offset : %D\n", psf->dataoffset) ; + + if (psf->dataoffset + psf->datalength > psf->filelength) + { psf_log_printf (psf, "*** File seems to be truncated. Should be at least %D bytes long.\n", + psf->dataoffset + sample_sizes [0]) ; + psf->datalength = psf->filelength - psf->dataoffset ; + } ; + + if (psf_fseek (psf, psf->dataoffset, SEEK_SET) != psf->dataoffset) + return SFE_BAD_SEEK ; + + psf->endian = SF_ENDIAN_LITTLE ; + psf->sf.channels = 1 ; /* Always mono */ + psf->sf.samplerate = 44100 ; /* Always */ + + psf->blockwidth = psf->sf.channels * psf->bytewidth ; + + if (! psf->sf.frames && psf->blockwidth) + psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; + + psf->instrument->basenote = 0 ; + psf->instrument->gain = 1 ; + psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ; + psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ; + + return 0 ; +} /* xi_read_header */ + +/*============================================================================== +*/ + +static void dsc2s_array (XI_PRIVATE *pxi, signed char *src, int count, short *dest) ; +static void dsc2i_array (XI_PRIVATE *pxi, signed char *src, int count, int *dest) ; +static void dsc2f_array (XI_PRIVATE *pxi, signed char *src, int count, float *dest, float normfact) ; +static void dsc2d_array (XI_PRIVATE *pxi, signed char *src, int count, double *dest, double normfact) ; + +static void dles2s_array (XI_PRIVATE *pxi, short *src, int count, short *dest) ; +static void dles2i_array (XI_PRIVATE *pxi, short *src, int count, int *dest) ; +static void dles2f_array (XI_PRIVATE *pxi, short *src, int count, float *dest, float normfact) ; +static void dles2d_array (XI_PRIVATE *pxi, short *src, int count, double *dest, double normfact) ; + +static sf_count_t +dpcm_read_dsc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + dsc2s_array (pxi, psf->u.scbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dsc2s */ + +static sf_count_t +dpcm_read_dsc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + dsc2i_array (pxi, psf->u.scbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dsc2i */ + +static sf_count_t +dpcm_read_dsc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + dsc2f_array (pxi, psf->u.scbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dsc2f */ + +static sf_count_t +dpcm_read_dsc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + dsc2d_array (pxi, psf->u.scbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dsc2d */ + +/*------------------------------------------------------------------------------ +*/ + +static sf_count_t +dpcm_read_dles2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + dles2s_array (pxi, psf->u.sbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dles2s */ + +static sf_count_t +dpcm_read_dles2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + dles2i_array (pxi, psf->u.sbuf, readcount, ptr + total) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dles2i */ + +static sf_count_t +dpcm_read_dles2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + float normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + dles2f_array (pxi, psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dles2f */ + +static sf_count_t +dpcm_read_dles2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, readcount ; + sf_count_t total = 0 ; + double normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + dles2d_array (pxi, psf->u.sbuf, readcount, ptr + total, normfact) ; + total += readcount ; + if (readcount < bufferlen) + break ; + len -= readcount ; + } ; + + return total ; +} /* dpcm_read_dles2d */ + +/*============================================================================== +*/ + +static void s2dsc_array (XI_PRIVATE *pxi, const short *src, signed char *dest, int count) ; +static void i2dsc_array (XI_PRIVATE *pxi, const int *src, signed char *dest, int count) ; +static void f2dsc_array (XI_PRIVATE *pxi, const float *src, signed char *dest, int count, float normfact) ; +static void d2dsc_array (XI_PRIVATE *pxi, const double *src, signed char *dest, int count, double normfact) ; + +static void s2dles_array (XI_PRIVATE *pxi, const short *src, short *dest, int count) ; +static void i2dles_array (XI_PRIVATE *pxi, const int *src, short *dest, int count) ; +static void f2dles_array (XI_PRIVATE *pxi, const float *src, short *dest, int count, float normfact) ; +static void d2dles_array (XI_PRIVATE *pxi, const double *src, short *dest, int count, double normfact) ; + + +static sf_count_t +dpcm_write_s2dsc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_s2dsc */ + +static sf_count_t +dpcm_write_i2dsc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_i2dsc */ + +static sf_count_t +dpcm_write_f2dsc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + float normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7F) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen, normfact) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_f2dsc */ + +static sf_count_t +dpcm_write_d2dsc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + double normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7F) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.ucbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + d2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen, normfact) ; + writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_d2dsc */ + + +static sf_count_t +dpcm_write_s2dles (SF_PRIVATE *psf, const short *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + s2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_s2dles */ + +static sf_count_t +dpcm_write_i2dles (SF_PRIVATE *psf, const int *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + i2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_i2dles */ + +static sf_count_t +dpcm_write_f2dles (SF_PRIVATE *psf, const float *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + float normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + f2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen, normfact) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_f2dles */ + +static sf_count_t +dpcm_write_d2dles (SF_PRIVATE *psf, const double *ptr, sf_count_t len) +{ XI_PRIVATE *pxi ; + int bufferlen, writecount ; + sf_count_t total = 0 ; + double normfact ; + + if ((pxi = psf->codec_data) == NULL) + return 0 ; + + normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; + + bufferlen = ARRAY_LEN (psf->u.sbuf) ; + + while (len > 0) + { if (len < bufferlen) + bufferlen = (int) len ; + d2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen, normfact) ; + writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; + total += writecount ; + if (writecount < bufferlen) + break ; + len -= writecount ; + } ; + + return total ; +} /* dpcm_write_d2dles */ + + +/*============================================================================== +*/ + +static void +dsc2s_array (XI_PRIVATE *pxi, signed char *src, int count, short *dest) +{ signed char last_val ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { last_val += src [k] ; + dest [k] = last_val << 8 ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* dsc2s_array */ + +static void +dsc2i_array (XI_PRIVATE *pxi, signed char *src, int count, int *dest) +{ signed char last_val ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { last_val += src [k] ; + dest [k] = last_val << 24 ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* dsc2i_array */ + +static void +dsc2f_array (XI_PRIVATE *pxi, signed char *src, int count, float *dest, float normfact) +{ signed char last_val ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { last_val += src [k] ; + dest [k] = last_val * normfact ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* dsc2f_array */ + +static void +dsc2d_array (XI_PRIVATE *pxi, signed char *src, int count, double *dest, double normfact) +{ signed char last_val ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { last_val += src [k] ; + dest [k] = last_val * normfact ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* dsc2d_array */ + +/*------------------------------------------------------------------------------ +*/ + +static void +s2dsc_array (XI_PRIVATE *pxi, const short *src, signed char *dest, int count) +{ signed char last_val, current ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { current = src [k] >> 8 ; + dest [k] = current - last_val ; + last_val = current ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* s2dsc_array */ + +static void +i2dsc_array (XI_PRIVATE *pxi, const int *src, signed char *dest, int count) +{ signed char last_val, current ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { current = src [k] >> 24 ; + dest [k] = current - last_val ; + last_val = current ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* i2dsc_array */ + +static void +f2dsc_array (XI_PRIVATE *pxi, const float *src, signed char *dest, int count, float normfact) +{ signed char last_val, current ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { current = lrintf (src [k] * normfact) ; + dest [k] = current - last_val ; + last_val = current ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* f2dsc_array */ + +static void +d2dsc_array (XI_PRIVATE *pxi, const double *src, signed char *dest, int count, double normfact) +{ signed char last_val, current ; + int k ; + + last_val = pxi->last_16 >> 8 ; + + for (k = 0 ; k < count ; k++) + { current = lrint (src [k] * normfact) ; + dest [k] = current - last_val ; + last_val = current ; + } ; + + pxi->last_16 = last_val << 8 ; +} /* d2dsc_array */ + +/*============================================================================== +*/ + +static void +dles2s_array (XI_PRIVATE *pxi, short *src, int count, short *dest) +{ short last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { last_val += LES2H_SHORT (src [k]) ; + dest [k] = last_val ; + } ; + + pxi->last_16 = last_val ; +} /* dles2s_array */ + +static void +dles2i_array (XI_PRIVATE *pxi, short *src, int count, int *dest) +{ short last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { last_val += LES2H_SHORT (src [k]) ; + dest [k] = last_val << 16 ; + } ; + + pxi->last_16 = last_val ; +} /* dles2i_array */ + +static void +dles2f_array (XI_PRIVATE *pxi, short *src, int count, float *dest, float normfact) +{ short last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { last_val += LES2H_SHORT (src [k]) ; + dest [k] = last_val * normfact ; + } ; + + pxi->last_16 = last_val ; +} /* dles2f_array */ + +static void +dles2d_array (XI_PRIVATE *pxi, short *src, int count, double *dest, double normfact) +{ short last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { last_val += LES2H_SHORT (src [k]) ; + dest [k] = last_val * normfact ; + } ; + + pxi->last_16 = last_val ; +} /* dles2d_array */ + +/*------------------------------------------------------------------------------ +*/ + +static void +s2dles_array (XI_PRIVATE *pxi, const short *src, short *dest, int count) +{ short diff, last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { diff = src [k] - last_val ; + dest [k] = LES2H_SHORT (diff) ; + last_val = src [k] ; + } ; + + pxi->last_16 = last_val ; +} /* s2dles_array */ + +static void +i2dles_array (XI_PRIVATE *pxi, const int *src, short *dest, int count) +{ short diff, last_val ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { diff = (src [k] >> 16) - last_val ; + dest [k] = LES2H_SHORT (diff) ; + last_val = src [k] >> 16 ; + } ; + + pxi->last_16 = last_val ; +} /* i2dles_array */ + +static void +f2dles_array (XI_PRIVATE *pxi, const float *src, short *dest, int count, float normfact) +{ short diff, last_val, current ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { current = lrintf (src [k] * normfact) ; + diff = current - last_val ; + dest [k] = LES2H_SHORT (diff) ; + last_val = current ; + } ; + + pxi->last_16 = last_val ; +} /* f2dles_array */ + +static void +d2dles_array (XI_PRIVATE *pxi, const double *src, short *dest, int count, double normfact) +{ short diff, last_val, current ; + int k ; + + last_val = pxi->last_16 ; + + for (k = 0 ; k < count ; k++) + { current = lrint (src [k] * normfact) ; + diff = current - last_val ; + dest [k] = LES2H_SHORT (diff) ; + last_val = current ; + } ; + + pxi->last_16 = last_val ; +} /* d2dles_array */ + |