diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/.cvsignore | 9 | ||||
| -rw-r--r-- | examples/Makefile.am | 27 | ||||
| -rw-r--r-- | examples/chaining_example.c | 70 | ||||
| -rw-r--r-- | examples/decoder_example.c | 307 | ||||
| -rw-r--r-- | examples/encoder_example.c | 219 | ||||
| -rw-r--r-- | examples/seeking_example.c | 207 | ||||
| -rw-r--r-- | examples/vorbisfile_example.c | 87 |
7 files changed, 0 insertions, 926 deletions
diff --git a/examples/.cvsignore b/examples/.cvsignore deleted file mode 100644 index 1eb3972d..00000000 --- a/examples/.cvsignore +++ /dev/null @@ -1,9 +0,0 @@ -Makefile -Makefile.in -.libs -.deps -encoder_example -decoder_example -chaining_example -vorbisfile_example -seeking_example diff --git a/examples/Makefile.am b/examples/Makefile.am deleted file mode 100644 index c58d4d7a..00000000 --- a/examples/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -## Process this file with automake to produce Makefile.in - -AUTOMAKE_OPTIONS = foreign - -INCLUDES = -I$(top_srcdir)/include @OGG_CFLAGS@ - -noinst_PROGRAMS = decoder_example encoder_example chaining_example\ - vorbisfile_example seeking_example - -LDFLAGS = -all-static -LDADD = ../lib/libvorbis.la - -decoder_example_SOURCES = decoder_example.c -encoder_example_SOURCES = encoder_example.c -encoder_example_LDADD = ../lib/libvorbisenc.la ../lib/libvorbis.la -chaining_example_SOURCES = chaining_example.c -chaining_example_LDADD = ../lib/libvorbisfile.la ../lib/libvorbis.la -vorbisfile_example_SOURCES = vorbisfile_example.c -vorbisfile_example_LDADD = ../lib/libvorbisfile.la ../lib/libvorbis.la -seeking_example_SOURCES = seeking_example.c -seeking_example_LDADD = ../lib/libvorbisfile.la ../lib/libvorbis.la - -debug: - $(MAKE) all CFLAGS="@DEBUG@" - -profile: - $(MAKE) all CFLAGS="@PROFILE@" diff --git a/examples/chaining_example.c b/examples/chaining_example.c deleted file mode 100644 index e9d20709..00000000 --- a/examples/chaining_example.c +++ /dev/null @@ -1,70 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - * * - ******************************************************************** - - function: illustrate simple use of chained bitstream and vorbisfile.a - last mod: $Id: chaining_example.c,v 1.15 2001/12/20 01:00:24 segher Exp $ - - ********************************************************************/ - -#include <vorbis/codec.h> -#include <vorbis/vorbisfile.h> - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -#include <io.h> -#include <fcntl.h> -#endif - -int main(){ - OggVorbis_File ov; - int i; - -#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */ - /* Beware the evil ifdef. We avoid these where we can, but this one we - cannot. Don't add any more, you'll probably go to hell if you do. */ - _setmode( _fileno( stdin ), _O_BINARY ); - _setmode( _fileno( stdout ), _O_BINARY ); -#endif - - /* open the file/pipe on stdin */ - if(ov_open(stdin,&ov,NULL,-1)<0){ - printf("Could not open input as an OggVorbis file.\n\n"); - exit(1); - } - - /* print details about each logical bitstream in the input */ - if(ov_seekable(&ov)){ - printf("Input bitstream contained %ld logical bitstream section(s).\n", - ov_streams(&ov)); - printf("Total bitstream playing time: %ld seconds\n\n", - (long)ov_time_total(&ov,-1)); - - }else{ - printf("Standard input was not seekable.\n" - "First logical bitstream information:\n\n"); - } - - for(i=0;i<ov_streams(&ov);i++){ - vorbis_info *vi=ov_info(&ov,i); - printf("\tlogical bitstream section %d information:\n",i+1); - printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n", - vi->rate,vi->channels,ov_bitrate(&ov,i)/1000, - ov_serialnumber(&ov,i)); - printf("\t\theader length: %ld bytes\n",(long) - (ov.dataoffsets[i]-ov.offsets[i])); - printf("\t\tcompressed length: %ld bytes\n",(long)(ov_raw_total(&ov,i))); - printf("\t\tplay time: %lds\n",(long)ov_time_total(&ov,i)); - } - - ov_clear(&ov); - return 0; -} - diff --git a/examples/decoder_example.c b/examples/decoder_example.c deleted file mode 100644 index e246bd24..00000000 --- a/examples/decoder_example.c +++ /dev/null @@ -1,307 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - * * - ******************************************************************** - - function: simple example decoder - last mod: $Id: decoder_example.c,v 1.25 2002/01/22 08:06:05 xiphmont Exp $ - - ********************************************************************/ - -/* Takes a vorbis bitstream from stdin and writes raw stereo PCM to - stdout. Decodes simple and chained OggVorbis files from beginning - to end. Vorbisfile.a is somewhat more complex than the code below. */ - -/* Note that this is POSIX, not ANSI code */ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <vorbis/codec.h> - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -#include <io.h> -#include <fcntl.h> -#endif - -#if defined(macintosh) && defined(__MWERKS__) -#include <console.h> /* CodeWarrior's Mac "command-line" support */ -#endif - -ogg_int16_t convbuffer[4096]; /* take 8k out of the data segment, not the stack */ -int convsize=4096; - -extern void _VDBG_dump(void); - -int main(){ - ogg_sync_state oy; /* sync and verify incoming physical bitstream */ - ogg_stream_state os; /* take physical pages, weld into a logical - stream of packets */ - ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */ - ogg_packet op; /* one raw packet of data for decode */ - - vorbis_info vi; /* struct that stores all the static vorbis bitstream - settings */ - vorbis_comment vc; /* struct that stores all the bitstream user comments */ - vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */ - vorbis_block vb; /* local working space for packet->PCM decode */ - - char *buffer; - int bytes; - -#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */ - /* Beware the evil ifdef. We avoid these where we can, but this one we - cannot. Don't add any more, you'll probably go to hell if you do. */ - _setmode( _fileno( stdin ), _O_BINARY ); - _setmode( _fileno( stdout ), _O_BINARY ); -#endif - -#if defined(macintosh) && defined(__MWERKS__) - { - int argc; - char **argv; - argc=ccommand(&argv); /* get a "command line" from the Mac user */ - /* this also lets the user set stdin and stdout */ - } -#endif - - /********** Decode setup ************/ - - ogg_sync_init(&oy); /* Now we can read pages */ - - while(1){ /* we repeat if the bitstream is chained */ - int eos=0; - int i; - - /* 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. */ - - /* submit a 4k block to libvorbis' Ogg layer */ - buffer=ogg_sync_buffer(&oy,4096); - bytes=fread(buffer,1,4096,stdin); - ogg_sync_wrote(&oy,bytes); - - /* Get the first page. */ - if(ogg_sync_pageout(&oy,&og)!=1){ - /* have we simply run out of data? If so, we're done. */ - if(bytes<4096)break; - - /* error case. Must not be Vorbis data */ - fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n"); - exit(1); - } - - /* Get the serial number and set up the rest of decode. */ - /* serialno first; use it to set up a logical stream */ - ogg_stream_init(&os,ogg_page_serialno(&og)); - - /* 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(&vi); - vorbis_comment_init(&vc); - if(ogg_stream_pagein(&os,&og)<0){ - /* error; stream version mismatch perhaps */ - fprintf(stderr,"Error reading first page of Ogg bitstream data.\n"); - exit(1); - } - - if(ogg_stream_packetout(&os,&op)!=1){ - /* no page? must not be vorbis */ - fprintf(stderr,"Error reading initial header packet.\n"); - exit(1); - } - - if(vorbis_synthesis_headerin(&vi,&vc,&op)<0){ - /* error case; not a vorbis header */ - fprintf(stderr,"This Ogg bitstream does not contain Vorbis " - "audio data.\n"); - exit(1); - } - - /* 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; - while(i<2){ - while(i<2){ - int result=ogg_sync_pageout(&oy,&og); - if(result==0)break; /* Need more data */ - /* Don't complain about missing or corrupt data yet. We'll - catch it at the packet output phase */ - if(result==1){ - ogg_stream_pagein(&os,&og); /* we can ignore any errors here - as they'll also become apparent - at packetout */ - while(i<2){ - result=ogg_stream_packetout(&os,&op); - 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. */ - fprintf(stderr,"Corrupt secondary header. Exiting.\n"); - exit(1); - } - vorbis_synthesis_headerin(&vi,&vc,&op); - i++; - } - } - } - /* no harm in not checking before adding more */ - buffer=ogg_sync_buffer(&oy,4096); - bytes=fread(buffer,1,4096,stdin); - if(bytes==0 && i<2){ - fprintf(stderr,"End of file before finding all Vorbis headers!\n"); - exit(1); - } - ogg_sync_wrote(&oy,bytes); - } - - /* Throw the comments plus a few lines about the bitstream we're - decoding */ - { - char **ptr=vc.user_comments; - while(*ptr){ - fprintf(stderr,"%s\n",*ptr); - ++ptr; - } - fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi.channels,vi.rate); - fprintf(stderr,"Encoded by: %s\n\n",vc.vendor); - } - - convsize=4096/vi.channels; - - /* OK, got and parsed all three headers. Initialize the Vorbis - packet->PCM decoder. */ - vorbis_synthesis_init(&vd,&vi); /* central decode state */ - vorbis_block_init(&vd,&vb); /* 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 */ - - /* The rest is just a straight decode loop until end of stream */ - while(!eos){ - while(!eos){ - int result=ogg_sync_pageout(&oy,&og); - if(result==0)break; /* need more data */ - if(result<0){ /* missing or corrupt data at this page position */ - fprintf(stderr,"Corrupt or missing data in bitstream; " - "continuing...\n"); - }else{ - ogg_stream_pagein(&os,&og); /* can safely ignore errors at - this point */ - while(1){ - result=ogg_stream_packetout(&os,&op); - - 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 */ - float **pcm; - int samples; - - if(vorbis_synthesis(&vb,&op)==0) /* test for success! */ - vorbis_synthesis_blockin(&vd,&vb); - /* - - **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(&vd,&pcm))>0){ - int j; - int clipflag=0; - int bout=(samples<convsize?samples:convsize); - - /* convert floats to 16 bit signed ints (host order) and - interleave */ - for(i=0;i<vi.channels;i++){ - ogg_int16_t *ptr=convbuffer+i; - float *mono=pcm[i]; - for(j=0;j<bout;j++){ -#if 1 - int val=mono[j]*32767.f; -#else /* optional dither */ - int val=mono[j]*32767.f+drand48()-0.5f; -#endif - /* might as well guard against clipping */ - if(val>32767){ - val=32767; - clipflag=1; - } - if(val<-32768){ - val=-32768; - clipflag=1; - } - *ptr=val; - ptr+=vi.channels; - } - } - - if(clipflag) - fprintf(stderr,"Clipping in frame %ld\n",(long)(vd.sequence)); - - - fwrite(convbuffer,2*vi.channels,bout,stdout); - - vorbis_synthesis_read(&vd,bout); /* tell libvorbis how - many samples we - actually consumed */ - } - } - } - if(ogg_page_eos(&og))eos=1; - } - } - if(!eos){ - buffer=ogg_sync_buffer(&oy,4096); - bytes=fread(buffer,1,4096,stdin); - ogg_sync_wrote(&oy,bytes); - if(bytes==0)eos=1; - } - } - - /* clean up this logical bitstream; before exit we see if we're - followed by another [chained] */ - - ogg_stream_clear(&os); - - /* ogg_page and ogg_packet structs always point to storage in - libvorbis. They're never freed or manipulated directly */ - - vorbis_block_clear(&vb); - vorbis_dsp_clear(&vd); - vorbis_comment_clear(&vc); - vorbis_info_clear(&vi); /* must be called last */ - } - - /* OK, clean up the framer */ - ogg_sync_clear(&oy); - - fprintf(stderr,"Done.\n"); - return(0); -} diff --git a/examples/encoder_example.c b/examples/encoder_example.c deleted file mode 100644 index 137f9ccc..00000000 --- a/examples/encoder_example.c +++ /dev/null @@ -1,219 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - * * - ******************************************************************** - - function: simple example encoder - last mod: $Id: encoder_example.c,v 1.35 2001/12/29 17:47:16 cwolf Exp $ - - ********************************************************************/ - -/* takes a stereo 16bit 44.1kHz WAV file from stdin and encodes it into - a Vorbis bitstream */ - -/* Note that this is POSIX, not ANSI, code */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <math.h> -#include <vorbis/vorbisenc.h> - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -#include <io.h> -#include <fcntl.h> -#endif - -#if defined(macintosh) && defined(__MWERKS__) -#include <console.h> /* CodeWarrior's Mac "command-line" support */ -#endif - -#define READ 1024 -signed char readbuffer[READ*4+44]; /* out of the data segment, not the stack */ - -int main(){ - ogg_stream_state os; /* take physical pages, weld into a logical - stream of packets */ - ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */ - ogg_packet op; /* one raw packet of data for decode */ - - vorbis_info vi; /* struct that stores all the static vorbis bitstream - settings */ - vorbis_comment vc; /* struct that stores all the user comments */ - - vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */ - vorbis_block vb; /* local working space for packet->PCM decode */ - - int eos=0; - int i, founddata; - -#if defined(macintosh) && defined(__MWERKS__) - int argc = 0; - char **argv = NULL; - argc = ccommand(&argv); /* get a "command line" from the Mac user */ - /* this also lets the user set stdin and stdout */ -#endif - - /* we cheat on the WAV header; we just bypass 44 bytes and never - verify that it matches 16bit/stereo/44.1kHz. This is just an - example, after all. */ - -#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */ - /* Beware the evil ifdef. We avoid these where we can, but this one we - cannot. Don't add any more, you'll probably go to hell if you do. */ - _setmode( _fileno( stdin ), _O_BINARY ); - _setmode( _fileno( stdout ), _O_BINARY ); -#endif - - - /* we cheat on the WAV header; we just bypass the header and never - verify that it matches 16bit/stereo/44.1kHz. This is just an - example, after all. */ - - readbuffer[0] = '\0'; - for (i=0, founddata=0; i<30 && ! feof(stdin) && ! ferror(stdin); i++) - { - fread(readbuffer,1,2,stdin); - - if ( ! strncmp(readbuffer, "da", 2) ) - { - founddata = 1; - fread(readbuffer,1,6,stdin); - break; - } - } - - /********** Encode setup ************/ - - /* choose an encoding mode */ - /* (quality mode .4: 44kHz stereo coupled, roughly 128kbps VBR) */ - vorbis_info_init(&vi); - - vorbis_encode_init_vbr(&vi,2,44100,.1); // max compression - - /* add a comment */ - vorbis_comment_init(&vc); - vorbis_comment_add_tag(&vc,"ENCODER","encoder_example.c"); - - /* set up the analysis state and auxiliary encoding storage */ - vorbis_analysis_init(&vd,&vi); - vorbis_block_init(&vd,&vb); - - /* set up our packet->stream encoder */ - /* pick a random serial number; that way we can more likely build - chained streams just by concatenation */ - srand(time(NULL)); - ogg_stream_init(&os,rand()); - - /* 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; - - vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code); - ogg_stream_packetin(&os,&header); /* automatically placed in its own - page */ - ogg_stream_packetin(&os,&header_comm); - ogg_stream_packetin(&os,&header_code); - - /* We don't have to write out here, but doing so makes streaming - * much easier, so we do, flushing ALL pages. This ensures the actual - * audio data will start on a new page - */ - while(!eos){ - int result=ogg_stream_flush(&os,&og); - if(result==0)break; - fwrite(og.header,1,og.header_len,stdout); - fwrite(og.body,1,og.body_len,stdout); - } - - } - - while(!eos){ - long i; - long bytes=fread(readbuffer,1,READ*4,stdin); /* stereo hardwired here */ - - if(bytes==0){ - /* end of file. this can be done implicitly in the mainline, - but it's easier to see here in non-clever fashion. - Tell the library we're at end of stream so that it can handle - the last frame and mark end of stream in the output properly */ - vorbis_analysis_wrote(&vd,0); - - }else{ - /* data to encode */ - - /* expose the buffer to submit data */ - float **buffer=vorbis_analysis_buffer(&vd,READ); - - /* uninterleave samples */ - for(i=0;i<bytes/4;i++){ - buffer[0][i]=((readbuffer[i*4+1]<<8)| - (0x00ff&(int)readbuffer[i*4]))/32768.f; - buffer[1][i]=((readbuffer[i*4+3]<<8)| - (0x00ff&(int)readbuffer[i*4+2]))/32768.f; - } - - /* tell the library how much we actually submitted */ - vorbis_analysis_wrote(&vd,i); - } - - /* 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(&vd,&vb)==1){ - - /* analysis, assume we want to use bitrate management */ - vorbis_analysis(&vb,NULL); - vorbis_bitrate_addblock(&vb); - - while(vorbis_bitrate_flushpacket(&vd,&op)){ - - /* weld the packet into the bitstream */ - ogg_stream_packetin(&os,&op); - - /* write out pages (if any) */ - while(!eos){ - int result=ogg_stream_pageout(&os,&og); - if(result==0)break; - fwrite(og.header,1,og.header_len,stdout); - fwrite(og.body,1,og.body_len,stdout); - - /* 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(&og))eos=1; - } - } - } - } - - /* clean up and exit. vorbis_info_clear() must be called last */ - - ogg_stream_clear(&os); - vorbis_block_clear(&vb); - vorbis_dsp_clear(&vd); - vorbis_comment_clear(&vc); - vorbis_info_clear(&vi); - - /* ogg_page and ogg_packet structs always point to storage in - libvorbis. They're never freed or manipulated directly */ - - fprintf(stderr,"Done.\n"); - return(0); -} diff --git a/examples/seeking_example.c b/examples/seeking_example.c deleted file mode 100644 index 31e5835e..00000000 --- a/examples/seeking_example.c +++ /dev/null @@ -1,207 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - * * - ******************************************************************** - - function: illustrate seeking, and test it too - last mod: $Id: seeking_example.c,v 1.12 2001/12/20 01:00:24 segher Exp $ - - ********************************************************************/ - -#include <stdlib.h> -#include <stdio.h> -#include "vorbis/codec.h" -#include "vorbis/vorbisfile.h" - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -# include <io.h> -# include <fcntl.h> -#endif - -void _verify(OggVorbis_File *ov,ogg_int64_t pos, - ogg_int64_t val,ogg_int64_t pcmval, - ogg_int64_t pcmlength, - char *bigassbuffer){ - int j; - long bread; - char buffer[4096]; - int dummy; - - /* verify the raw position, the pcm position and position decode */ - if(val!=-1 && ov_raw_tell(ov)<val){ - printf("raw position out of tolerance: requested %ld, got %ld\n", - (long)val,(long)ov_raw_tell(ov)); - exit(1); - } - if(pcmval!=-1 && ov_pcm_tell(ov)>pcmval){ - printf("pcm position out of tolerance: requested %ld, got %ld\n", - (long)pcmval,(long)ov_pcm_tell(ov)); - exit(1); - } - pos=ov_pcm_tell(ov); - if(pos<0 || pos>pcmlength){ - printf("pcm position out of bounds: got %ld\n",(long)pos); - exit(1); - } - bread=ov_read(ov,buffer,4096,1,1,1,&dummy); - for(j=0;j<bread;j++){ - if(buffer[j]!=bigassbuffer[j+pos*2]){ - printf("data position after seek doesn't match pcm position\n"); - exit(1); - } - } -} - -int main(){ - OggVorbis_File ov; - int i,ret; - ogg_int64_t pcmlength; - char *bigassbuffer; - int dummy; - -#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */ - _setmode( _fileno( stdin ), _O_BINARY ); - _setmode( _fileno( stdout ), _O_BINARY ); -#endif - - - /* open the file/pipe on stdin */ - if(ov_open(stdin,&ov,NULL,-1)<0){ - printf("Could not open input as an OggVorbis file.\n\n"); - exit(1); - } - - if(ov_seekable(&ov)){ - - /* to simplify our own lives, we want to assume the whole file is - stereo. Verify this to avoid potentially mystifying users - (pissing them off is OK, just don't confuse them) */ - for(i=0;i<ov.links;i++){ - vorbis_info *vi=ov_info(&ov,i); - if(vi->channels!=2){ - printf("Sorry; right now seeking_test can only use Vorbis files\n" - "that are entirely stereo.\n\n"); - exit(1); - } - } - - /* because we want to do sample-level verification that the seek - does what it claimed, decode the entire file into memory */ - printf("loading....\n"); - fflush(stdout); - pcmlength=ov_pcm_total(&ov,-1); - bigassbuffer=malloc(pcmlength*2); /* w00t */ - i=0; - while(i<pcmlength*2){ - int ret=ov_read(&ov,bigassbuffer+i,pcmlength*2-i,1,1,1,&dummy); - if(ret<0)continue; - if(ret){ - i+=ret; - }else{ - pcmlength=i/2; - } - } - - /* Exercise all the real seeking cases; ov_raw_seek, - ov_pcm_seek_page and ov_pcm_seek. time seek is just a wrapper - on pcm_seek */ - { - ogg_int64_t length=ov.end; - printf("testing raw seeking to random places in %ld bytes....\n", - (long)length); - - for(i=0;i<1000;i++){ - ogg_int64_t val=(double)rand()/RAND_MAX*length; - ogg_int64_t pos; - printf("\r\t%d [raw position %ld]... ",i,(long)val); - fflush(stdout); - ret=ov_raw_seek(&ov,val); - if(ret<0){ - printf("seek failed: %d\n",ret); - exit(1); - } - - _verify(&ov,pos,val,-1,pcmlength,bigassbuffer); - - } - } - - printf("\r"); - { - ogg_int64_t length=ov.end; - printf("testing pcm page seeking to random places in %ld samples....\n", - (long)pcmlength); - - for(i=0;i<1000;i++){ - ogg_int64_t val=(double)rand()/RAND_MAX*pcmlength; - ogg_int64_t pos; - printf("\r\t%d [pcm position %ld]... ",i,(long)val); - fflush(stdout); - ret=ov_pcm_seek_page(&ov,val); - if(ret<0){ - printf("seek failed: %d\n",ret); - exit(1); - } - - _verify(&ov,pos,-1,val,pcmlength,bigassbuffer); - - } - } - - printf("\r"); - { - ogg_int64_t length=ov.end; - printf("testing pcm exact seeking to random places in %ld samples....\n", - (long)pcmlength); - - for(i=0;i<1000;i++){ - ogg_int64_t val=(double)rand()/RAND_MAX*pcmlength; - ogg_int64_t pos; - printf("\r\t%d [pcm position %ld]... ",i,(long)val); - fflush(stdout); - ret=ov_pcm_seek(&ov,val); - if(ret<0){ - printf("seek failed: %d\n",ret); - exit(1); - } - if(ov_pcm_tell(&ov)!=val){ - printf("Decalred position didn't perfectly match request: %ld != %ld\n", - (long)val,(long)ov_pcm_tell(&ov)); - exit(1); - } - - _verify(&ov,pos,-1,val,pcmlength,bigassbuffer); - - } - } - - printf("\r \nOK.\n\n"); - - - }else{ - printf("Standard input was not seekable.\n"); - } - - ov_clear(&ov); - return 0; -} - - - - - - - - - - - - - diff --git a/examples/vorbisfile_example.c b/examples/vorbisfile_example.c deleted file mode 100644 index c16e2e8f..00000000 --- a/examples/vorbisfile_example.c +++ /dev/null @@ -1,87 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * - * by the XIPHOPHORUS Company http://www.xiph.org/ * - * * - ******************************************************************** - - function: simple example decoder using vorbisfile - last mod: $Id: vorbisfile_example.c,v 1.9 2001/12/20 01:00:24 segher Exp $ - - ********************************************************************/ - -/* Takes a vorbis bitstream from stdin and writes raw stereo PCM to - stdout using vorbisfile. Using vorbisfile is much simpler than - dealing with libvorbis. */ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <vorbis/codec.h> -#include <vorbis/vorbisfile.h> - -#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ -#include <io.h> -#include <fcntl.h> -#endif - -char pcmout[4096]; /* take 4k out of the data segment, not the stack */ - -int main(){ - OggVorbis_File vf; - int eof=0; - int current_section; - -#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */ - /* Beware the evil ifdef. We avoid these where we can, but this one we - cannot. Don't add any more, you'll probably go to hell if you do. */ - _setmode( _fileno( stdin ), _O_BINARY ); - _setmode( _fileno( stdout ), _O_BINARY ); -#endif - - if(ov_open(stdin, &vf, NULL, 0) < 0) { - fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n"); - exit(1); - } - - /* Throw the comments plus a few lines about the bitstream we're - decoding */ - { - char **ptr=ov_comment(&vf,-1)->user_comments; - vorbis_info *vi=ov_info(&vf,-1); - while(*ptr){ - fprintf(stderr,"%s\n",*ptr); - ++ptr; - } - fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi->channels,vi->rate); - fprintf(stderr,"\nDecoded length: %ld samples\n", - (long)ov_pcm_total(&vf,-1)); - fprintf(stderr,"Encoded by: %s\n\n",ov_comment(&vf,-1)->vendor); - } - - while(!eof){ - long ret=ov_read(&vf,pcmout,sizeof(pcmout),0,2,1,¤t_section); - if (ret == 0) { - /* EOF */ - eof=1; - } else if (ret < 0) { - /* error in the stream. Not a problem, just reporting it in - case we (the app) cares. In this case, we don't. */ - } else { - /* we don't bother dealing with sample rate changes, etc, but - you'll have to*/ - fwrite(pcmout,1,ret,stdout); - } - } - - /* cleanup */ - ov_clear(&vf); - - fprintf(stderr,"Done.\n"); - return(0); -} |