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Diffstat (limited to 'openjpeg/src/lib/openmj2/mj2.c')
-rw-r--r-- | openjpeg/src/lib/openmj2/mj2.c | 2924 |
1 files changed, 2924 insertions, 0 deletions
diff --git a/openjpeg/src/lib/openmj2/mj2.c b/openjpeg/src/lib/openmj2/mj2.c new file mode 100644 index 000000000..b9034a301 --- /dev/null +++ b/openjpeg/src/lib/openmj2/mj2.c @@ -0,0 +1,2924 @@ +/* + * The copyright in this software is being made available under the 2-clauses + * BSD License, included below. This software may be subject to other third + * party and contributor rights, including patent rights, and no such rights + * are granted under this license. + * + * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium + * Copyright (c) 2002-2014, Professor Benoit Macq + * Copyright (c) 2003-2007, Francois-Olivier Devaux + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * 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. + */ + +#include "opj_includes.h" +#include "mj2.h" + +/** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */ +/*@{*/ + +/** @name Local static functions */ +/*@{*/ + +/* +* +* Read box headers +* +*/ + +int mj2_read_boxhdr(mj2_box_t * box, opj_cio_t *cio) +{ + box->init_pos = cio_tell(cio); + box->length = cio_read(cio, 4); + box->type = cio_read(cio, 4); + if (box->length == 1) { + if (cio_read(cio, 4) != 0) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Cannot handle box sizes higher than 2^32\n"); + return 1; + }; + box->length = cio_read(cio, 4); + if (box->length == 0) + box->length = cio_numbytesleft(cio) + 12; + } + else if (box->length == 0) { + box->length = cio_numbytesleft(cio) + 8; + } + return 0; +} + +/* +* +* Initialisation of a Standard Movie, given a simple movie structure defined by the user +* The movie will have one sample per chunk +* +* Arguments: opj_mj2_t * movie +* Several variables of "movie" must be defined in order to enable a correct execution of +* this function: +* - The number of tracks of each type (movie->num_vtk, movie->num_stk, movie->num_htk) +* - The memory for each must be allocated (movie->tk) +* - For each track: +* The track type (tk->track_type) +* The number of sample (tk->num_samples) +* The sample rate (tk->sample_rate) +* +*/ + +int OPJ_CALLCONV mj2_init_stdmovie(opj_mj2_t * movie) +{ + mj2_tk_t *tk0; + int i, w, h, prec; + unsigned int j; + time_t ltime; + + movie->brand = MJ2_MJ2; + movie->minversion = 0; + movie->num_cl = 2; + movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int)); + + movie->cl[0] = MJ2_MJ2; + movie->cl[1] = MJ2_MJ2S; + time(<ime); /* Time since 1/1/70 */ + movie->creation_time = (unsigned int) ltime + 2082844800; /* Seconds between 1/1/04 and 1/1/70 */ + movie->timescale = 1000; + + movie->rate = 1 << 16; /* Rate to play presentation (default = 0x00010000) */ + movie->volume = 1 << 8; /* Movie volume (default = 0x0100) */ + movie->trans_matrix[0] = 0x00010000; /* Transformation matrix for video */ + movie->trans_matrix[1] = 0; /* Unity is { 0x00010000,0,0,0,0x00010000,0,0,0,0x40000000 } */ + movie->trans_matrix[2] = 0; + movie->trans_matrix[3] = 0; + movie->trans_matrix[4] = 0x00010000; + movie->trans_matrix[5] = 0; + movie->trans_matrix[6] = 0; + movie->trans_matrix[7] = 0; + movie->trans_matrix[8] = 0x40000000; + movie->next_tk_id = 1; + + tk0 = &movie->tk[0]; + w = tk0->w; h = tk0->h; prec = tk0->depth; + + for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++) + { + mj2_tk_t *tk = &movie->tk[i]; + + movie->next_tk_id++; + tk->jp2_struct.comps = NULL; + tk->jp2_struct.cl = NULL; + + if (tk->track_type == 0) /* no sound or hint track */ + { + if (tk->num_samples == 0) + return 1; + + tk->w = w; tk->h = h; tk->depth = prec; + tk->Dim[0] = 0; + tk->Dim[1] = 0; + + tk->timescale = 1000; /* Timescale = 1 ms */ + + tk->chunk[0].num_samples = 1; + tk->chunk[0].sample_descr_idx = 1; + + tk->same_sample_size = 0; + + tk->num_samplestochunk = 1; /* One sample per chunk */ + tk->sampletochunk = (mj2_sampletochunk_t*) opj_malloc(tk->num_samplestochunk * sizeof(mj2_sampletochunk_t)); + tk->sampletochunk[0].first_chunk = 1; + tk->sampletochunk[0].samples_per_chunk = 1; + tk->sampletochunk[0].sample_descr_idx = 1; + + if (tk->sample_rate == 0) + { + opj_event_msg(tk->cinfo, EVT_ERROR, + "Error while initializing MJ2 movie: Sample rate of track" + " %d must be different from zero\n", tk->track_ID); + return 1; + } + + for (j = 0; j < tk->num_samples; j++) + { + tk->sample[j].sample_delta = tk->timescale / tk->sample_rate; + } + + tk->num_tts = 1; + tk->tts = (mj2_tts_t*) opj_malloc(tk->num_tts * sizeof(mj2_tts_t)); + tk->tts[0].sample_count = tk->num_samples; + tk->tts[0].sample_delta = tk->timescale / tk->sample_rate; + + tk->horizresolution = 0x00480000; /* Horizontal resolution (typically 72) */ + tk->vertresolution = 0x00480000; /* Vertical resolution (typically 72) */ + tk->compressorname[0] = 0x0f4d6f74; /* Compressor Name[]: Motion JPEG2000 */ + tk->compressorname[1] = 0x696f6e20; + tk->compressorname[2] = 0x4a504547; + tk->compressorname[3] = 0x32303030; + tk->compressorname[4] = 0x00120000; + tk->compressorname[5] = 0; + tk->compressorname[6] = 0x00000042; + tk->compressorname[7] = 0x000000DC; + tk->num_url = 0; /* Number of URL */ + tk->num_urn = 0; /* Number of URN */ + tk->graphicsmode = 0; /* Graphicsmode */ + tk->opcolor[0] = 0; /* OpColor */ + tk->opcolor[1] = 0; /* OpColor */ + tk->opcolor[2] = 0; /* OpColor */ + tk->creation_time = movie->creation_time; /* Seconds between 1/1/04 and 1/1/70 */ + tk->language = 0; /* Language (undefined) */ + tk->layer = 0; + tk->volume = 1 << 8; /* Movie volume (default = 0x0100) */ + tk->trans_matrix[0] = 0x00010000; /* Transformation matrix for track */ + tk->trans_matrix[1] = 0; /* Unity is { 0x00010000,0,0,0,0x00010000,0,0,0,0x40000000 } */ + tk->trans_matrix[2] = 0; + tk->trans_matrix[3] = 0; + tk->trans_matrix[4] = 0x00010000; + tk->trans_matrix[5] = 0; + tk->trans_matrix[6] = 0; + tk->trans_matrix[7] = 0; + tk->trans_matrix[8] = 0x40000000; + tk->fieldcount = 1; + tk->fieldorder = 0; + tk->or_fieldcount = 1; + tk->or_fieldorder = 0; + tk->num_br = 2; + tk->br = (unsigned int*) opj_malloc(tk->num_br * sizeof(unsigned int)); + tk->br[0] = MJ2_JP2; + tk->br[1] = MJ2_J2P0; + tk->num_jp2x = 0; + tk->hsub = 2; /* 4:2:0 */ + tk->vsub = 2; /* 4:2:0 */ + tk->hoff = 0; + tk->voff = 0; + tk->visual_w = tk->w << 16; + tk->visual_h = tk->h << 16; + } + else { + tk->num_br = 0; + tk->jp2xdata = NULL; + } + } + return 0; +} + +/* +* Time To Sample box Decompact +* +*/ +void mj2_tts_decompact(mj2_tk_t * tk) +{ + int i, j; + tk->num_samples = 0; + for (i = 0; i < tk->num_tts; i++) { + tk->num_samples += tk->tts[i].sample_count; + } + + tk->sample = (mj2_sample_t*) opj_malloc(tk->num_samples * sizeof(mj2_sample_t)); + + for (i = 0; i < tk->num_tts; i++) { + for (j = 0; j < tk->tts[i].sample_count; j++) { + tk->sample[j].sample_delta = tk->tts[i].sample_delta; + } + } +} + +/* +* Sample To Chunk box Decompact +* +*/ +void mj2_stsc_decompact(mj2_tk_t * tk) +{ + unsigned int i, j, k, sampleno = 0; + + if (tk->num_samplestochunk == 1) { + tk->num_chunks = + (unsigned int) ceil((double) tk->num_samples / + (double) tk->sampletochunk[0].samples_per_chunk); + tk->chunk = (mj2_chunk_t*) opj_malloc(tk->num_chunks * sizeof(mj2_chunk_t)); + for (k = 0; k < tk->num_chunks; k++) { + tk->chunk[k].num_samples = tk->sampletochunk[0].samples_per_chunk; + } + + } else { + tk->chunk = (mj2_chunk_t*) opj_malloc(tk->num_samples * sizeof(mj2_chunk_t)); + tk->num_chunks = 0; + for (i = 0; i < tk->num_samplestochunk -1 ; i++) { + for (j = tk->sampletochunk[i].first_chunk - 1; + j < tk->sampletochunk[i + 1].first_chunk - 1; j++) { + tk->chunk[j].num_samples = tk->sampletochunk[i].samples_per_chunk; + tk->num_chunks++; + sampleno += tk->chunk[j].num_samples; + } + } + tk->num_chunks += (int)(tk->num_samples - sampleno) / tk->sampletochunk[tk->num_samplestochunk - 1].samples_per_chunk; + for (k = tk->sampletochunk[tk->num_samplestochunk - 1].first_chunk - 1; + k < tk->num_chunks; k++) { + tk->chunk[k].num_samples = + tk->sampletochunk[tk->num_samplestochunk - 1].samples_per_chunk; + } + tk->chunk = (mj2_chunk_t*) + opj_realloc(tk->chunk, tk->num_chunks * sizeof(mj2_chunk_t)); + } + +} + + +/* +* Chunk offset box Decompact +* +*/ +void mj2_stco_decompact(mj2_tk_t * tk) +{ + unsigned int i, j, k = 0; + unsigned int intra_chunk_offset; + + for (i = 0; i < tk->num_chunks; i++) { + intra_chunk_offset = 0; + for (j = 0; j < tk->chunk[i].num_samples; j++) { + tk->sample[k].offset = intra_chunk_offset + tk->chunk[i].offset; + intra_chunk_offset += tk->sample[k].sample_size; + k++; + } + } +} + +/* +* Write the JP box +* +* JP Signature box +* +*/ +void OPJ_CALLCONV mj2_write_jp(opj_cio_t *cio) +{ + mj2_box_t box; + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + + cio_write(cio, MJ2_JP, 4); /* JP */ + cio_write(cio, 0x0d0a870a, 4); /* 0x0d0a870a required in a JP box */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the JP box +* +* JPEG 2000 signature +* +*/ +int mj2_read_jp(opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_JP != box.type) { /* Check Marker */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP Marker\n"); + return 1; + } + if (0x0d0a870a != cio_read(cio, 4)) { /* read the 0x0d0a870a required in a JP box */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP Marker\n"); + return 1; + } + if (cio_tell(cio) - box.init_pos != box.length) { /* Check box length */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP Box size \n"); + return 1; + } + return 0; + +} + +/* +* Write the FTYP box +* +* File type box +* +*/ +void OPJ_CALLCONV mj2_write_ftyp(opj_mj2_t * movie, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + + cio_write(cio, MJ2_FTYP, 4); /* FTYP */ + cio_write(cio, movie->brand, 4); /* BR */ + cio_write(cio, movie->minversion, 4); /* MinV */ + + for (i = 0; i < movie->num_cl; i++) + cio_write(cio, movie->cl[i], 4); /* CL */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* Length */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the FTYP box +* +* File type box +* +*/ +int mj2_read_ftyp(opj_mj2_t * movie, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); /* Box Size */ + if (MJ2_FTYP != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected FTYP Marker\n"); + return 1; + } + + movie->brand = cio_read(cio, 4); /* BR */ + movie->minversion = cio_read(cio, 4); /* MinV */ + movie->num_cl = (box.length - 16) / 4; + movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int)); + + for (i = movie->num_cl - 1; i > -1; i--) + movie->cl[i] = cio_read(cio, 4); /* CLi */ + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with FTYP Box\n"); + return 1; + } + return 0; +} + + +/* +* Write the STCO box +* +* Chunk Offset Box +* +*/ +void mj2_write_stco(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + unsigned int i; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STCO, 4); /* STCO */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->num_chunks, 4); /* Entry Count */ + + for (i = 0; i < tk->num_chunks; i++) { + cio_write(cio, tk->chunk[i].offset, 4); /* Entry offset */ + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STCO box +* +* Chunk Offset Box +* +*/ +int mj2_read_stco(mj2_tk_t * tk, opj_cio_t *cio) +{ + unsigned int i; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); /* Box Size */ + if (MJ2_STCO != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STCO Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STCO box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STCO box. Expected flag 0\n"); + return 1; + } + + + if (cio_read(cio, 4) != tk->num_chunks) { + opj_event_msg(cio->cinfo, EVT_ERROR, + "Error in STCO box: expecting same amount of entry-count as chunks \n"); + } else { + for (i = 0; i < tk->num_chunks; i++) { + tk->chunk[i].offset = cio_read(cio, 4); /* Entry offset */ + } + } + + mj2_stco_decompact(tk); + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STCO Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the STSZ box +* +* Sample size box +* +*/ +void mj2_write_stsz(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + unsigned int i; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STSZ, 4); /* STSZ */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + if (tk->same_sample_size == 1) { /* If they all have the same size */ + cio_write(cio, tk->sample[0].sample_size, 4); /* Size */ + + cio_write(cio, 1, 4); /* Entry count = 1 */ + } + + else { + cio_write(cio, 0, 4); /* Sample Size = 0 becase they all have different sizes */ + + cio_write(cio, tk->num_samples, 4); /* Sample Count */ + + for (i = 0; i < tk->num_samples; i++) { + cio_write(cio, tk->sample[i].sample_size, 4); + } + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STSZ box +* +* Sample size box +* +*/ +int mj2_read_stsz(mj2_tk_t * tk, opj_cio_t *cio) +{ + int sample_size; + unsigned int i; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); /* Box Size */ + if (MJ2_STSZ != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSZ Marker\n"); + return 1; + } + + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSZ box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSZ box. Expected flag 0\n"); + return 1; + } + + sample_size = cio_read(cio, 4); + + if (sample_size != 0) { /* Samples do have the same size */ + tk->same_sample_size = 1; + for (i = 0; i < tk->num_samples; i++) { + tk->sample[i].sample_size = sample_size; + } + cio_skip(cio,4); /* Sample count = 1 */ + } else { + tk->same_sample_size = 0; + if (tk->num_samples != cio_read(cio, 4)) { /* Sample count */ + opj_event_msg(cio->cinfo, EVT_ERROR, + "Error in STSZ box. Expected that sample-count is number of samples in track\n"); + return 1; + } + for (i = 0; i < tk->num_samples; i++) { + tk->sample[i].sample_size = cio_read(cio, 4); /* Sample Size */ + } + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSZ Box size\n"); + return 1; + } + } + return 0; + +} + +/* +* Write the STSC box +* +* Sample to Chunk +* +*/ +void mj2_write_stsc(mj2_tk_t * tk, opj_cio_t *cio) +{ + unsigned int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STSC, 4); /* STSC */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->num_samplestochunk, 4); /* Entry Count */ + + for (i = 0; i < tk->num_samplestochunk; i++) { + cio_write(cio, tk->sampletochunk[i].first_chunk, 4); /* First Chunk */ + cio_write(cio, tk->sampletochunk[i].samples_per_chunk, 4); /* Samples per chunk */ + cio_write(cio, tk->sampletochunk[i].sample_descr_idx, 4); /* Samples description index */ + } + + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STSC box +* +* Sample to Chunk +* +*/ +int mj2_read_stsc(mj2_tk_t * tk, opj_cio_t *cio) +{ + unsigned int i; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); /* Box Size */ + if (MJ2_STSC != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSC Marker\n"); + return 1; + } + + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSC box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSC box. Expected flag 0\n"); + return 1; + } + + tk->num_samplestochunk = cio_read(cio, 4); + + tk->sampletochunk = (mj2_sampletochunk_t*) opj_malloc(tk->num_samplestochunk * sizeof(mj2_sampletochunk_t)); + + for (i = 0; i < tk->num_samplestochunk; i++) { + tk->sampletochunk[i].first_chunk = cio_read(cio, 4); + tk->sampletochunk[i].samples_per_chunk = cio_read(cio, 4); + tk->sampletochunk[i].sample_descr_idx = cio_read(cio, 4); + } + + mj2_stsc_decompact(tk); /* decompact sample to chunk box */ + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSC Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the STTS box +* +* Time to Sample Box +* +*/ +void mj2_write_stts(mj2_tk_t * tk, opj_cio_t *cio) +{ + + int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STTS, 4); /* STTS */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->num_tts, 4); /* entry_count */ + for (i = 0; i < tk->num_tts; i++) { + cio_write(cio, tk->tts[i].sample_count, 4); /* Sample-count */ + cio_write(cio, tk->tts[i].sample_delta, 4); /* Sample-Delta */ + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STTS box +* +* +* +*/ +int mj2_read_stts(mj2_tk_t * tk, opj_cio_t *cio) +{ + int i; + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_STTS != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STTS Marker\n"); + return 1; + } + + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STTS box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STTS box. Expected flag 0\n"); + return 1; + } + + tk->num_tts = cio_read(cio, 4); + + tk->tts = (mj2_tts_t*) opj_malloc(tk->num_tts * sizeof(mj2_tts_t)); + + for (i = 0; i < tk->num_tts; i++) { + tk->tts[i].sample_count = cio_read(cio, 4); + tk->tts[i].sample_delta = cio_read(cio, 4); + } + + mj2_tts_decompact(tk); + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STTS Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the FIEL box +* +* Field coding Box +* +*/ +void mj2_write_fiel(mj2_tk_t * tk, opj_cio_t *cio) +{ + + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_FIEL, 4); /* STTS */ + + cio_write(cio, tk->fieldcount, 1); /* Field count */ + cio_write(cio, tk->fieldorder, 1); /* Field order */ + + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the FIEL box +* +* Field coding Box +* +*/ +int mj2_read_fiel(mj2_tk_t * tk, opj_cio_t *cio) +{ + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_FIEL != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected FIEL Marker\n"); + return 1; + } + + + tk->fieldcount = cio_read(cio, 1); + tk->fieldorder = cio_read(cio, 1); + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with FIEL Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the ORFO box +* +* Original Format Box +* +*/ +void mj2_write_orfo(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_ORFO, 4); + + cio_write(cio, tk->or_fieldcount, 1); /* Original Field count */ + cio_write(cio, tk->or_fieldorder, 1); /* Original Field order */ + + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the ORFO box +* +* Original Format Box +* +*/ +int mj2_read_orfo(mj2_tk_t * tk, opj_cio_t *cio) +{ + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_ORFO != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected ORFO Marker\n"); + return 1; + } + + + tk->or_fieldcount = cio_read(cio, 1); + tk->or_fieldorder = cio_read(cio, 1); + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with ORFO Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the JP2P box +* +* MJP2 Profile Box +* +*/ +void mj2_write_jp2p(mj2_tk_t * tk, opj_cio_t *cio) +{ + + int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_JP2P, 4); + + cio_write(cio, 0, 4); /* Version 0, flags =0 */ + + for (i = 0; i < tk->num_br; i++) { + cio_write(cio, tk->br[i], 4); + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the JP2P box +* +* MJP2 Profile Box +* +*/ +int mj2_read_jp2p(mj2_tk_t * tk, opj_cio_t *cio) +{ + int i; + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_JP2P != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP2P Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in JP2P box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in JP2P box. Expected flag 0\n"); + return 1; + } + + + tk->num_br = (box.length - 12) / 4; + tk->br = (unsigned int*) opj_malloc(tk->num_br * sizeof(unsigned int)); + + for (i = 0; i < tk->num_br; i++) { + tk->br[i] = cio_read(cio, 4); + } + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP2P Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the JP2X box +* +* MJP2 Prefix Box +* +*/ +void mj2_write_jp2x(mj2_tk_t * tk, opj_cio_t *cio) +{ + + int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_JP2X, 4); + + for (i = 0; i < tk->num_jp2x; i++) { + cio_write(cio, tk->jp2xdata[i], 1); + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the JP2X box +* +* MJP2 Prefix Box +* +*/ +int mj2_read_jp2x(mj2_tk_t * tk, opj_cio_t *cio) +{ + unsigned int i; + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_JP2X != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP2X Marker\n"); + return 1; + } + + + tk->num_jp2x = (box.length - 8); + tk->jp2xdata = (unsigned char*) opj_malloc(tk->num_jp2x * sizeof(unsigned char)); + + for (i = 0; i < tk->num_jp2x; i++) { + tk->jp2xdata[i] = cio_read(cio, 1); + } + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP2X Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the JSUB box +* +* MJP2 Subsampling Box +* +*/ +void mj2_write_jsub(mj2_tk_t * tk, opj_cio_t *cio) +{ + + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_JSUB, 4); + + cio_write(cio, tk->hsub, 1); + cio_write(cio, tk->vsub, 1); + cio_write(cio, tk->hoff, 1); + cio_write(cio, tk->voff, 1); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the JSUB box +* +* MJP2 Subsampling Box +* +*/ +int mj2_read_jsub(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_JSUB != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JSUB Marker\n"); + return 1; + } + + tk->hsub = cio_read(cio, 1); + tk->vsub = cio_read(cio, 1); + tk->hoff = cio_read(cio, 1);; + tk->voff = cio_read(cio, 1); + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JSUB Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the SMJ2 box +* +* Visual Sample Entry Description +* +*/ +void mj2_write_smj2(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MJ2, 4); /* MJ2 */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, 1, 4); + + cio_write(cio, 0, 2); /* Pre-defined */ + + cio_write(cio, 0, 2); /* Reserved */ + + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + + cio_write(cio, tk->w, 2); /* Width */ + cio_write(cio, tk->h, 2); /* Height */ + + cio_write(cio, tk->horizresolution, 4); /* Horizontal resolution */ + cio_write(cio, tk->vertresolution, 4); /* Vertical resolution */ + + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, 1, 2); /* Pre-defined = 1 */ + + cio_write(cio, tk->compressorname[0], 4); /* Compressor Name */ + cio_write(cio, tk->compressorname[1], 4); + cio_write(cio, tk->compressorname[2], 4); + cio_write(cio, tk->compressorname[3], 4); + cio_write(cio, tk->compressorname[4], 4); + cio_write(cio, tk->compressorname[5], 4); + cio_write(cio, tk->compressorname[6], 4); + cio_write(cio, tk->compressorname[7], 4); + + cio_write(cio, tk->depth, 2); /* Depth */ + + cio_write(cio, 0xffff, 2); /* Pre-defined = -1 */ + + jp2_write_jp2h(&tk->jp2_struct, cio); + + mj2_write_fiel(tk, cio); + + if (tk->num_br != 0) + mj2_write_jp2p(tk, cio); + if (tk->num_jp2x != 0) + mj2_write_jp2x(tk, cio); + + mj2_write_jsub(tk, cio); + mj2_write_orfo(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the SMJ2 box +* +* Visual Sample Entry Description +* +*/ +int mj2_read_smj2(opj_image_t * img, mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + mj2_box_t box2; + opj_jp2_color_t color; + int i; + opj_bool ok; + + mj2_read_boxhdr(&box, cio); + + if (MJ2_MJ2 != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error in SMJ2 box: Expected MJ2 Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MJP2 box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in MJP2 box. Expected flag 0\n"); + return 1; + } + + cio_skip(cio,4); + + cio_skip(cio,2); /* Pre-defined */ + + cio_skip(cio,2); /* Reserved */ + + cio_skip(cio,4); /* Pre-defined */ + cio_skip(cio,4); /* Pre-defined */ + cio_skip(cio,4); /* Pre-defined */ + + tk->w = cio_read(cio, 2); /* Width */ + tk->h = cio_read(cio, 2); /* Height */ + + tk->horizresolution = cio_read(cio, 4); /* Horizontal resolution */ + tk->vertresolution = cio_read(cio, 4); /* Vertical resolution */ + + cio_skip(cio,4); /* Reserved */ + + cio_skip(cio,2); /* Pre-defined = 1 */ + + tk->compressorname[0] = cio_read(cio, 4); /* Compressor Name */ + tk->compressorname[1] = cio_read(cio, 4); + tk->compressorname[2] = cio_read(cio, 4); + tk->compressorname[3] = cio_read(cio, 4); + tk->compressorname[4] = cio_read(cio, 4); + tk->compressorname[5] = cio_read(cio, 4); + tk->compressorname[6] = cio_read(cio, 4); + tk->compressorname[7] = cio_read(cio, 4); + + tk->depth = cio_read(cio, 2); /* Depth */ + + /* Init std value */ + tk->num_jp2x = 0; + tk->fieldcount = 1; + tk->fieldorder = 0; + tk->or_fieldcount = 1; + tk->or_fieldorder = 0; + + cio_skip(cio,2); /* Pre-defined = -1 */ + memset(&color, 0, sizeof(opj_jp2_color_t)); + tk->jp2_struct.cinfo = tk->cinfo; + + ok = jp2_read_jp2h(&tk->jp2_struct, cio, &color); + + tk->jp2_struct.cinfo = NULL; + + if(ok == OPJ_FALSE) + { + opj_event_msg(tk->cinfo, EVT_ERROR, "Error reading JP2H Box\n"); + return 1; + } + + tk->jp2_struct.comps = (opj_jp2_comps_t*) opj_malloc(tk->jp2_struct.numcomps * sizeof(opj_jp2_comps_t)); + tk->jp2_struct.cl = (unsigned int*) opj_malloc(sizeof(unsigned int)); + + tk->num_br = 0; + tk->num_jp2x = 0; + + for (i = 0; cio_tell(cio) - box.init_pos < box.length; i++) { + mj2_read_boxhdr(&box2, cio); + cio_seek(cio, box2.init_pos); + switch (box2.type) { + case MJ2_FIEL: + if (mj2_read_fiel(tk, cio)) + return 1; + break; + + case MJ2_JP2P: + if (mj2_read_jp2p(tk, cio)) + return 1; + break; + + case MJ2_JP2X: + if (mj2_read_jp2x(tk, cio)) + return 1; + break; + + case MJ2_JSUB: + if (mj2_read_jsub(tk, cio)) + return 1; + break; + + case MJ2_ORFO: + if (mj2_read_orfo(tk, cio)) + return 1; + break; + + default: + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MJP2 Box size\n"); + return 1; + break; + + } + } + return 0; +} + + +/* +* Write the STSD box +* +* Sample Description +* +*/ +void mj2_write_stsd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STSD, 4); /* STSD */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, 1, 4); /* entry_count = 1 (considering same JP2 headerboxes) */ + + if (tk->track_type == 0) { + mj2_write_smj2(tk, cio); + } else if (tk->track_type == 1) { + /* Not implemented*/ + } + if (tk->track_type == 2) { + /* Not implemented*/ + } + + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STSD box +* +* Sample Description +* +*/ +int mj2_read_stsd(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio) +{ + int i; + int entry_count, len_2skip; + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + + if (MJ2_STSD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSD box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSD box. Expected flag 0\n"); + return 1; + } + + entry_count = cio_read(cio, 4); + + if (tk->track_type == 0) { + for (i = 0; i < entry_count; i++) { + if (mj2_read_smj2(img, tk, cio)) + return 1; + } + } else if (tk->track_type == 1) { + len_2skip = cio_read(cio, 4); /* Not implemented -> skipping box*/ + cio_skip(cio,len_2skip - 4); + } else if (tk->track_type == 2) { + len_2skip = cio_read(cio, 4); /* Not implemented -> skipping box*/ + cio_skip(cio,len_2skip - 4); + } + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the STBL box +* +* Sample table box box +* +*/ +void mj2_write_stbl(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_STBL, 4); /* STBL */ + + mj2_write_stsd(tk, cio); + mj2_write_stts(tk, cio); + mj2_write_stsc(tk, cio); + mj2_write_stsz(tk, cio); + mj2_write_stco(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the STBL box +* +* Sample table box box +* +*/ +int mj2_read_stbl(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_STBL != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STBL Marker\n"); + return 1; + } + + if (mj2_read_stsd(tk, img, cio)) + return 1; + if (mj2_read_stts(tk, cio)) + return 1; + if (mj2_read_stsc(tk, cio)) + return 1; + if (mj2_read_stsz(tk, cio)) + return 1; + if (mj2_read_stco(tk, cio)) + return 1; + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STBL Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the URL box +* +* URL box +* +*/ +void mj2_write_url(mj2_tk_t * tk, int url_num, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_URL, 4); /* URL */ + + if (url_num == 0) + cio_write(cio, 1, 4); /* Version = 0, flags = 1 because stored in same file */ + else { + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + cio_write(cio, tk->url[url_num - 1].location[0], 4); + cio_write(cio, tk->url[url_num - 1].location[1], 4); + cio_write(cio, tk->url[url_num - 1].location[2], 4); + cio_write(cio, tk->url[url_num - 1].location[3], 4); + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the URL box +* +* URL box +* +*/ +int mj2_read_url(mj2_tk_t * tk, int urn_num, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_URL != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected URL Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in URL box\n"); + return 1; + } + + if (1 != cio_read(cio, 3)) { /* If flags = 1 --> media data in file */ + tk->url[urn_num].location[0] = cio_read(cio, 4); + tk->url[urn_num].location[1] = cio_read(cio, 4); + tk->url[urn_num].location[2] = cio_read(cio, 4); + tk->url[urn_num].location[3] = cio_read(cio, 4); + } else { + tk->num_url--; + } + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with URL Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the URN box +* +* URN box +* +*/ +void mj2_write_urn(mj2_tk_t * tk, int urn_num, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_URN, 4); /* URN */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->urn[urn_num].name[0], 4); + cio_write(cio, tk->urn[urn_num].name[1], 4); + cio_write(cio, tk->urn[urn_num].name[2], 4); + cio_write(cio, tk->urn[urn_num].name[3], 4); + cio_write(cio, tk->urn[urn_num].location[0], 4); + cio_write(cio, tk->urn[urn_num].location[1], 4); + cio_write(cio, tk->urn[urn_num].location[2], 4); + cio_write(cio, tk->urn[urn_num].location[3], 4); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the URN box +* +* URN box +* +*/ +int mj2_read_urn(mj2_tk_t * tk, int urn_num, opj_cio_t *cio) +{ + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_URN != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected URN Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in URN box\n"); + return 1; + } + + if (1 != cio_read(cio, 3)) { /* If flags = 1 --> media data in file */ + tk->urn[urn_num].name[0] = cio_read(cio, 4); + tk->urn[urn_num].name[1] = cio_read(cio, 4); + tk->urn[urn_num].name[2] = cio_read(cio, 4); + tk->urn[urn_num].name[3] = cio_read(cio, 4); + tk->urn[urn_num].location[0] = cio_read(cio, 4); + tk->urn[urn_num].location[1] = cio_read(cio, 4); + tk->urn[urn_num].location[2] = cio_read(cio, 4); + tk->urn[urn_num].location[3] = cio_read(cio, 4); + } + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with URN Box size\n"); + return 1; + } + return 0; +} + + +/* +* Write the DREF box +* +* Data reference box +* +*/ +void mj2_write_dref(mj2_tk_t * tk, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_DREF, 4); /* DREF */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + if (tk->num_url + tk->num_urn == 0) { /* Media data in same file */ + cio_write(cio, 1, 4); /* entry_count = 1 */ + mj2_write_url(tk, 0, cio); + } else { + cio_write(cio, tk->num_url + tk->num_urn, 4); /* entry_count */ + + for (i = 0; i < tk->num_url; i++) + mj2_write_url(tk, i + 1, cio); + + for (i = 0; i < tk->num_urn; i++) + mj2_write_urn(tk, i, cio); + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the DREF box +* +* Data reference box +* +*/ +int mj2_read_dref(mj2_tk_t * tk, opj_cio_t *cio) +{ + + int i; + int entry_count, marker; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_DREF != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected DREF Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in DREF box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in DREF box. Expected flag 0\n"); + return 1; + } + + entry_count = cio_read(cio, 4); + tk->num_url = 0; + tk->num_urn = 0; + + for (i = 0; i < entry_count; i++) { + cio_skip(cio,4); + marker = cio_read(cio, 4); + if (marker == MJ2_URL) { + cio_skip(cio,-8); + tk->num_url++; + if (mj2_read_url(tk, tk->num_url, cio)) + return 1; + } else if (marker == MJ2_URN) { + cio_skip(cio,-8); + tk->num_urn++; + if (mj2_read_urn(tk, tk->num_urn, cio)) + return 1; + } else { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with in DREF box. Expected URN or URL box\n"); + return 1; + } + + } + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with DREF Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the DINF box +* +* Data information box +* +*/ +void mj2_write_dinf(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_DINF, 4); /* DINF */ + + mj2_write_dref(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the DINF box +* +* Data information box +* +*/ +int mj2_read_dinf(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_DINF != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected DINF Marker\n"); + return 1; + } + + if (mj2_read_dref(tk, cio)) + return 1; + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with DINF Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the VMHD box +* +* Video Media information box +* +*/ +void mj2_write_vmhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_VMHD, 4); /* VMHD */ + + cio_write(cio, 1, 4); /* Version = 0, flags = 1 */ + + cio_write(cio, tk->graphicsmode, 2); + cio_write(cio, tk->opcolor[0], 2); + cio_write(cio, tk->opcolor[1], 2); + cio_write(cio, tk->opcolor[2], 2); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the VMHD box +* +* Video Media information box +* +*/ +int mj2_read_vmhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_VMHD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected VMHD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in VMHD box\n"); + return 1; + } + + if (1 != cio_read(cio, 3)) { /* Flags = 1 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in VMHD box. Expected flag 1\n"); + return 1; + } + + tk->track_type = 0; + tk->graphicsmode = cio_read(cio, 2); + tk->opcolor[0] = cio_read(cio, 2); + tk->opcolor[1] = cio_read(cio, 2); + tk->opcolor[2] = cio_read(cio, 2); + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with VMHD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the SMHD box +* +* Sound Media information box +* +*/ +void mj2_write_smhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_SMHD, 4); /* SMHD */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->balance, 2); + + cio_write(cio, 0, 2); /* Reserved */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the SMHD box +* +* Sound Media information box +* +*/ +int mj2_read_smhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_SMHD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected SMHD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in SMHD box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in SMHD box. Expected flag 0\n"); + return 1; + } + + tk->track_type = 1; + tk->balance = cio_read(cio, 2); + + /* Init variables to zero to avoid problems when freeeing memory + The values will possibly be overidded when decoding the track structure */ + tk->num_br = 0; + tk->num_url = 0; + tk->num_urn = 0; + tk->num_chunks = 0; + tk->num_tts = 0; + tk->num_samplestochunk = 0; + tk->num_samples = 0; + + cio_skip(cio,2); /* Reserved */ + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with SMHD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the HMHD box +* +* Hint Media information box +* +*/ +void mj2_write_hmhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_HMHD, 4); /* HMHD */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->maxPDUsize, 2); + cio_write(cio, tk->avgPDUsize, 2); + cio_write(cio, tk->maxbitrate, 4); + cio_write(cio, tk->avgbitrate, 4); + cio_write(cio, tk->slidingavgbitrate, 4); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the HMHD box +* +* Hint Media information box +* +*/ +int mj2_read_hmhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_HMHD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected HMHD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in HMHD box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in HMHD box. Expected flag 0\n"); + return 1; + } + + tk->track_type = 2; + tk->maxPDUsize = cio_read(cio, 2); + tk->avgPDUsize = cio_read(cio, 2); + tk->maxbitrate = cio_read(cio, 4); + tk->avgbitrate = cio_read(cio, 4); + tk->slidingavgbitrate = cio_read(cio, 4); + + /* Init variables to zero to avoid problems when freeeing memory + The values will possibly be overidded when decoding the track structure */ + tk->num_br = 0; + tk->num_url = 0; + tk->num_urn = 0; + tk->num_chunks = 0; + tk->num_tts = 0; + tk->num_samplestochunk = 0; + tk->num_samples = 0; + + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with HMHD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the MINF box +* +* Media information box +* +*/ +void mj2_write_minf(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MINF, 4); /* MINF */ + + if (tk->track_type == 0) { + mj2_write_vmhd(tk, cio); + } else if (tk->track_type == 1) { + mj2_write_smhd(tk, cio); + } else if (tk->track_type == 2) { + mj2_write_hmhd(tk, cio); + } + + mj2_write_dinf(tk, cio); + mj2_write_stbl(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the MINF box +* +* Media information box +* +*/ +int mj2_read_minf(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio) +{ + + unsigned int box_type; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_MINF != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MINF Marker\n"); + return 1; + } + + cio_skip(cio,4); + box_type = cio_read(cio, 4); + cio_skip(cio,-8); + + if (box_type == MJ2_VMHD) { + if (mj2_read_vmhd(tk, cio)) + return 1; + } else if (box_type == MJ2_SMHD) { + if (mj2_read_smhd(tk, cio)) + return 1; + } else if (box_type == MJ2_HMHD) { + if (mj2_read_hmhd(tk, cio)) + return 1; + } else { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error in MINF box expected vmhd, smhd or hmhd\n"); + return 1; + } + + if (mj2_read_dinf(tk, cio)) + return 1; + + if (mj2_read_stbl(tk, img, cio)) + return 1; + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MINF Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the HDLR box +* +* Handler reference box +* +*/ +void mj2_write_hdlr(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_HDLR, 4); /* HDLR */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, 0, 4); /* Predefine */ + + tk->name = 0; /* The track name is immediately determined by the track type */ + + if (tk->track_type == 0) { + tk->handler_type = 0x76696465; /* Handler type: vide */ + cio_write(cio, tk->handler_type, 4); + + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, 0x76696465, 4); + cio_write(cio, 0x6F206d65, 4); + cio_write(cio, 0x64696120, 4); + cio_write(cio, 0x74726163, 4); + cio_write(cio, 0x6b00, 2); /* String: video media track */ + } else if (tk->track_type == 1) { + tk->handler_type = 0x736F756E; /* Handler type: soun */ + cio_write(cio, tk->handler_type, 4); + + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, 0x536F756E, 4); + cio_write(cio, 0x6400, 2); /* String: Sound */ + } else if (tk->track_type == 2) { + tk->handler_type = 0x68696E74; /* Handler type: hint */ + cio_write(cio, tk->handler_type, 4); + + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, 0x48696E74, 4); + cio_write(cio, 0, 2); /* String: Hint */ + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the HDLR box +* +* Handler reference box +* +*/ +int mj2_read_hdlr(mj2_tk_t * tk, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_HDLR != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected HDLR Marker\n"); + return 1; + } + + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in HDLR box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in HDLR box. Expected flag 0\n"); + return 1; + } + + cio_skip(cio,4); /* Reserved */ + + tk->handler_type = cio_read(cio, 4); + cio_skip(cio,12); /* Reserved */ + + tk->name_size = box.length - 32; + + tk->name = (char*) opj_malloc(tk->name_size * sizeof(char)); + for (i = 0; i < tk->name_size; i++) { + tk->name[i] = cio_read(cio, 1); /* Name */ + } + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with HDLR Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the MDHD box +* +* Media Header Box +* +*/ +void mj2_write_mdhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + unsigned int i; + time_t ltime; + unsigned int modification_time; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MDHD, 4); /* MDHD */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + cio_write(cio, tk->creation_time, 4); /* Creation Time */ + + time(<ime); /* Time since 1/1/70 */ + modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */ + + cio_write(cio, modification_time, 4); /* Modification Time */ + + cio_write(cio, tk->timescale, 4); /* Timescale */ + + tk->duration = 0; + + for (i = 0; i < tk->num_samples; i++) + tk->duration += tk->sample[i].sample_delta; + + cio_write(cio, tk->duration, 4); /* Duration */ + + cio_write(cio, tk->language, 2); /* Language */ + + cio_write(cio, 0, 2); /* Predefined */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the MDHD box +* +* Media Header Box +* +*/ +int mj2_read_mdhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (!(MJ2_MHDR == box.type || MJ2_MDHD == box.type)) { /* Kakadu writes MHDR instead of MDHD*/ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MDHD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MDHD box\n"); + return 1; + } + + if (0 != cio_read(cio, 3)) { /* Flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in MDHD box. Expected flag 0\n"); + return 1; + } + + + tk->creation_time = cio_read(cio, 4); /* Creation Time */ + + tk->modification_time = cio_read(cio, 4); /* Modification Time */ + + tk->timescale = cio_read(cio, 4); /* Timescale */ + + tk->duration = cio_read(cio, 4); /* Duration */ + + tk->language = cio_read(cio, 2); /* Language */ + + cio_skip(cio,2); /* Predefined */ + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MDHD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the MDIA box +* +* Media box +* +*/ +void mj2_write_mdia(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MDIA, 4); /* MDIA */ + + mj2_write_mdhd(tk, cio); + mj2_write_hdlr(tk, cio); + mj2_write_minf(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the MDIA box +* +* Media box +* +*/ +int mj2_read_mdia(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_MDIA != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MDIA Marker\n"); + return 1; + } + + if (mj2_read_mdhd(tk, cio)) + return 1; + if (mj2_read_hdlr(tk, cio)) + return 1; + if (mj2_read_minf(tk, img, cio)) + return 1; + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MDIA Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the TKHD box +* +* Track Header box +* +*/ +void mj2_write_tkhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + unsigned int i; + time_t ltime; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + + cio_write(cio, MJ2_TKHD, 4); /* TKHD */ + + cio_write(cio, 3, 4); /* Version=0, flags=3 */ + + time(<ime); /* Time since 1/1/70 */ + tk->modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */ + + cio_write(cio, tk->creation_time, 4); /* Creation Time */ + + cio_write(cio, tk->modification_time, 4); /* Modification Time */ + + cio_write(cio, tk->track_ID, 4); /* Track ID */ + + cio_write(cio, 0, 4); /* Reserved */ + + tk->duration = 0; + + for (i = 0; i < tk->num_samples; i++) + tk->duration += tk->sample[i].sample_delta; + + cio_write(cio, tk->duration, 4); /* Duration */ + + cio_write(cio, 0, 4); /* Reserved */ + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, tk->layer, 2); /* Layer */ + + cio_write(cio, 0, 2); /* Predefined */ + + cio_write(cio, tk->volume, 2); /* Volume */ + + cio_write(cio, 0, 2); /* Reserved */ + + cio_write(cio, tk->trans_matrix[0], 4); /* Transformation matrix for track */ + cio_write(cio, tk->trans_matrix[1], 4); + cio_write(cio, tk->trans_matrix[2], 4); + cio_write(cio, tk->trans_matrix[3], 4); + cio_write(cio, tk->trans_matrix[4], 4); + cio_write(cio, tk->trans_matrix[5], 4); + cio_write(cio, tk->trans_matrix[6], 4); + cio_write(cio, tk->trans_matrix[7], 4); + cio_write(cio, tk->trans_matrix[8], 4); + + cio_write(cio, tk->visual_w, 4); /* Video Visual Width */ + + cio_write(cio, tk->visual_h, 4); /* Video Visual Height */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the TKHD box +* +* Track Header box +* +*/ +int mj2_read_tkhd(mj2_tk_t * tk, opj_cio_t *cio) +{ + int flag; + + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + + if (MJ2_TKHD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected TKHD Marker\n"); + return 1; + } + + if (0 != cio_read(cio, 1)) { /* Version = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in TKHD box\n"); + return 1; + } + + flag = cio_read(cio, 3); + + if (!(flag == 1 || flag == 2 || flag == 3 || flag == 4)) { /* Flags = 1,2,3 or 4 */ + opj_event_msg(cio->cinfo, EVT_ERROR, + "Error with flag in TKHD box: Expected flag 1,2,3 or 4\n"); + return 1; + } + + tk->creation_time = cio_read(cio, 4); /* Creation Time */ + + tk->modification_time = cio_read(cio, 4); /* Modification Time */ + + tk->track_ID = cio_read(cio, 4); /* Track ID */ + + cio_skip(cio,4); /* Reserved */ + + tk->duration = cio_read(cio, 4); /* Duration */ + + cio_skip(cio,8); /* Reserved */ + + tk->layer = cio_read(cio, 2); /* Layer */ + + cio_read(cio, 2); /* Predefined */ + + tk->volume = cio_read(cio, 2); /* Volume */ + + cio_skip(cio,2); /* Reserved */ + + tk->trans_matrix[0] = cio_read(cio, 4); /* Transformation matrix for track */ + tk->trans_matrix[1] = cio_read(cio, 4); + tk->trans_matrix[2] = cio_read(cio, 4); + tk->trans_matrix[3] = cio_read(cio, 4); + tk->trans_matrix[4] = cio_read(cio, 4); + tk->trans_matrix[5] = cio_read(cio, 4); + tk->trans_matrix[6] = cio_read(cio, 4); + tk->trans_matrix[7] = cio_read(cio, 4); + tk->trans_matrix[8] = cio_read(cio, 4); + + tk->visual_w = cio_read(cio, 4); /* Video Visual Width */ + + tk->visual_h = cio_read(cio, 4); /* Video Visual Height */ + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with TKHD Box size\n"); + return 1; + } + return 0; +} + +/* +* Write the TRAK box +* +* Track box +* +*/ +void mj2_write_trak(mj2_tk_t * tk, opj_cio_t *cio) +{ + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + + cio_write(cio, MJ2_TRAK, 4); /* TRAK */ + + mj2_write_tkhd(tk, cio); + mj2_write_mdia(tk, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the TRAK box +* +* Track box +* +*/ +int mj2_read_trak(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_TRAK != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected TRAK Marker\n"); + return 1; + } + if (mj2_read_tkhd(tk, cio)) + return 1; + if (mj2_read_mdia(tk, img, cio)) + return 1; + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with TRAK Box\n"); + return 1; + } + return 0; +} + +/* +* Write the MVHD box +* +* Movie header Box +* +*/ +void mj2_write_mvhd(opj_mj2_t * movie, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + unsigned j; + time_t ltime; + int max_tk_num = 0; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MVHD, 4); /* MVHD */ + + cio_write(cio, 0, 4); /* Version = 0, flags = 0 */ + + time(<ime); /* Time since 1/1/70 */ + movie->modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */ + + cio_write(cio, movie->creation_time, 4); /* Creation Time */ + + cio_write(cio, movie->modification_time, 4); /* Modification Time */ + + cio_write(cio, movie->timescale, 4); /* Timescale */ + + movie->duration = 0; + + for (i = 0; i < (movie->num_stk + movie->num_htk + movie->num_vtk); i++) { + mj2_tk_t *tk = &movie->tk[i]; + + for (j = 0; j < tk->num_samples; j++) { + movie->duration += tk->sample[j].sample_delta; + } + } + + cio_write(cio, movie->duration, 4); + + cio_write(cio, movie->rate, 4); /* Rate to play presentation */ + + cio_write(cio, movie->volume, 2); /* Volume */ + + cio_write(cio, 0, 2); /* Reserved */ + cio_write(cio, 0, 4); /* Reserved */ + cio_write(cio, 0, 4); /* Reserved */ + + cio_write(cio, movie->trans_matrix[0], 4); /* Transformation matrix for video */ + cio_write(cio, movie->trans_matrix[1], 4); + cio_write(cio, movie->trans_matrix[2], 4); + cio_write(cio, movie->trans_matrix[3], 4); + cio_write(cio, movie->trans_matrix[4], 4); + cio_write(cio, movie->trans_matrix[5], 4); + cio_write(cio, movie->trans_matrix[6], 4); + cio_write(cio, movie->trans_matrix[7], 4); + cio_write(cio, movie->trans_matrix[8], 4); + + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + cio_write(cio, 0, 4); /* Pre-defined */ + + + for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++) { + if (max_tk_num < movie->tk[i].track_ID) + max_tk_num = movie->tk[i].track_ID; + } + + movie->next_tk_id = max_tk_num + 1; + + cio_write(cio, movie->next_tk_id, 4); /* ID of Next track to be added */ + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the MVHD box +* +* Movie header Box +* +*/ +int mj2_read_mvhd(opj_mj2_t * movie, opj_cio_t *cio) +{ + mj2_box_t box; + + mj2_read_boxhdr(&box, cio); + if (MJ2_MVHD != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MVHD Marker\n"); + return 1; + } + + + if (0 != cio_read(cio, 4)) { /* Version = 0, flags = 0 */ + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MVHD box\n"); + } + + movie->creation_time = cio_read(cio, 4); /* Creation Time */ + + movie->modification_time = cio_read(cio, 4); /* Modification Time */ + + movie->timescale = cio_read(cio, 4); /* Timescale */ + + movie->duration = cio_read(cio, 4); /* Duration */ + + movie->rate = cio_read(cio, 4); /* Rate to play presentation */ + + movie->volume = cio_read(cio, 2); /* Volume */ + + cio_skip(cio,10); /* Reserved */ + + movie->trans_matrix[0] = cio_read(cio, 4); /* Transformation matrix for video */ + movie->trans_matrix[1] = cio_read(cio, 4); + movie->trans_matrix[2] = cio_read(cio, 4); + movie->trans_matrix[3] = cio_read(cio, 4); + movie->trans_matrix[4] = cio_read(cio, 4); + movie->trans_matrix[5] = cio_read(cio, 4); + movie->trans_matrix[6] = cio_read(cio, 4); + movie->trans_matrix[7] = cio_read(cio, 4); + movie->trans_matrix[8] = cio_read(cio, 4); + + cio_skip(cio,24); /* Pre-defined */ + + movie->next_tk_id = cio_read(cio, 4); /* ID of Next track to be added */ + + if (cio_tell(cio) - box.init_pos != box.length) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MVHD Box Size\n"); + return 1; + } + return 0; +} + + +/* +* Write the MOOV box +* +* Movie Box +* +*/ +void OPJ_CALLCONV mj2_write_moov(opj_mj2_t * movie, opj_cio_t *cio) +{ + int i; + mj2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio,4); + cio_write(cio, MJ2_MOOV, 4); /* MOOV */ + + mj2_write_mvhd(movie, cio); + + for (i = 0; i < (movie->num_stk + movie->num_htk + movie->num_vtk); i++) { + mj2_write_trak(&movie->tk[i], cio); + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +/* +* Read the MOOV box +* +* Movie Box +* +*/ +int mj2_read_moov(opj_mj2_t * movie, opj_image_t * img, opj_cio_t *cio) +{ + unsigned int i; + mj2_box_t box; + mj2_box_t box2; + + mj2_read_boxhdr(&box, cio); + if (MJ2_MOOV != box.type) { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MOOV Marker\n"); + return 1; + } + + if (mj2_read_mvhd(movie, cio)) + return 1; + + movie->tk = (mj2_tk_t*) opj_malloc((movie->next_tk_id - 1) * sizeof(mj2_tk_t)); + + for (i = 0; cio_tell(cio) - box.init_pos < box.length; i++) { + mj2_tk_t *tk = &movie->tk[i]; + tk->cinfo = movie->cinfo; + mj2_read_boxhdr(&box2, cio); + if (box2.type == MJ2_TRAK) { + cio_seek(cio, box2.init_pos); + if (mj2_read_trak(tk, img, cio)) + return 1; + + if (tk->track_type == 0) { + movie->num_vtk++; + } else if (tk->track_type == 1) { + movie->num_stk++; + } else if (tk->track_type == 2) { + movie->num_htk++; + } + } else if (box2.type == MJ2_MVEX) { + cio_seek(cio, box2.init_pos); + cio_skip(cio,box2.length); + i--; + } else { + opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MOOV Box: Expected TRAK or MVEX box\n"); + return 1; + } + } + return 0; +} + +int OPJ_CALLCONV mj2_read_struct(FILE *file, opj_mj2_t *movie) { + mj2_box_t box; + opj_image_t img; + unsigned char * src; + int fsresult; + int foffset; + opj_cio_t *cio; + + /* open a byte stream for reading */ + src = (unsigned char*) opj_malloc(300 * sizeof(unsigned char)); + + /* Assuming that jp and ftyp markers size do + not exceed 300 bytes */ + fread(src,300,1, file); + + cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 300); + + if (mj2_read_jp(cio)) + return 1; + if (mj2_read_ftyp(movie, cio)) + return 1; + + fsresult = fseek(file,cio_tell(cio),SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read data after FTYP box\n" ); + return 1; + } + + foffset = cio_tell(cio); + + box.type = 0; + + fread(src,30,1,file); + cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 300); + mj2_read_boxhdr(&box, cio); + + while(box.type != MJ2_MOOV) { + + switch(box.type) + { + case MJ2_MDAT: + fsresult = fseek(file,foffset+box.length,SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MDAT box\n" ); + return 1; + } + foffset += box.length; + break; + + case MJ2_MOOF: + fsresult = fseek(file,foffset+box.length,SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MOOF box\n" ); + return 1; + } + foffset += box.length; + break; + case MJ2_FREE: + fsresult = fseek(file,foffset+box.length,SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read FREE box\n" ); + return 1; + } + foffset += box.length; + break; + case MJ2_SKIP: + fsresult = fseek(file,foffset+box.length,SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read SKIP box\n" ); + return 1; + } + foffset += box.length; + break; + default: + opj_event_msg(cio->cinfo, EVT_ERROR, "Unknown box in MJ2 stream\n"); + fsresult = fseek(file,foffset+box.length,SEEK_SET); + if( fsresult ) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read end of unknown box\n"); + return 1; + } + foffset += box.length; + break; + } + fsresult = fread(src,8,1,file); + if (fsresult != 1) { + opj_event_msg(cio->cinfo, EVT_ERROR, "MOOV box not found in file\n"); + return 1; + } + cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 8); + mj2_read_boxhdr(&box, cio); + } + + fseek(file,foffset,SEEK_SET); + src = (unsigned char*)opj_realloc(src,box.length); + fsresult = fread(src,box.length,1,file); + if (fsresult != 1) { + opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MOOV box\n"); + return 1; + } + + cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, box.length); + + if (mj2_read_moov(movie, &img, cio)) + return 1; + + opj_free(src); + return 0; +} + +/* ----------------------------------------------------------------------- */ +/* MJ2 decoder interface */ +/* ----------------------------------------------------------------------- */ + +opj_dinfo_t* OPJ_CALLCONV mj2_create_decompress() { + opj_mj2_t* mj2; + opj_dinfo_t *dinfo = (opj_dinfo_t*) opj_calloc(1, sizeof(opj_dinfo_t)); + if(!dinfo) return NULL; + + dinfo->is_decompressor = OPJ_TRUE; + + mj2 = (opj_mj2_t*) opj_calloc(1, sizeof(opj_mj2_t)); + dinfo->mj2_handle = mj2; + if(mj2) { + mj2->cinfo = (opj_common_ptr)dinfo; + } + mj2->j2k = j2k_create_decompress((opj_common_ptr)dinfo); + dinfo->j2k_handle = mj2->j2k; + + return dinfo; +} + +void OPJ_CALLCONV mj2_setup_decoder(opj_mj2_t *movie, mj2_dparameters_t *mj2_parameters) { + movie->num_vtk=0; + movie->num_stk=0; + movie->num_htk=0; + + /* setup the J2K decoder parameters */ + j2k_setup_decoder((opj_j2k_t*)movie->cinfo->j2k_handle, + &mj2_parameters->j2k_parameters); + +} + +void OPJ_CALLCONV mj2_destroy_decompress(opj_mj2_t *movie) { + if(movie) { + int i; + mj2_tk_t *tk=NULL; + + if (movie->cinfo->j2k_handle) + j2k_destroy_compress(movie->j2k); + + if (movie->num_cl != 0) + opj_free(movie->cl); + + for (i = 0; i < movie->num_vtk + movie->num_stk + movie->num_htk; i++) { + tk = &movie->tk[i]; + if (tk->name_size != 0) + opj_free(tk->name); + if (tk->track_type == 0) {/* Video track*/ + if (tk->jp2_struct.comps != NULL) + opj_free(tk->jp2_struct.comps); + if (tk->jp2_struct.cl != NULL) + opj_free(tk->jp2_struct.cl); + if (tk->num_jp2x != 0) + opj_free(tk->jp2xdata); + + } + if (tk->num_url != 0) + opj_free(tk->url); + if (tk->num_urn != 0) + opj_free(tk->urn); + if (tk->num_br != 0) + opj_free(tk->br); + if (tk->num_tts != 0) + opj_free(tk->tts); + if (tk->num_chunks != 0) + opj_free(tk->chunk); + if (tk->num_samplestochunk != 0) + opj_free(tk->sampletochunk); + if (tk->num_samples != 0) + opj_free(tk->sample); + } + + opj_free(movie->tk); + } + opj_free(movie); +} + +/* ----------------------------------------------------------------------- */ +/* MJ2 encoder interface */ +/* ----------------------------------------------------------------------- */ + +opj_cinfo_t* OPJ_CALLCONV mj2_create_compress() { + opj_mj2_t* mj2; + opj_cinfo_t *cinfo = (opj_cinfo_t*) opj_calloc(1, sizeof(opj_cinfo_t)); + if(!cinfo) return NULL; + + mj2 = (opj_mj2_t*) opj_calloc(1, sizeof(opj_mj2_t)); + cinfo->mj2_handle = mj2; + if(mj2) { + mj2->cinfo = (opj_common_ptr)cinfo; + } + + mj2->j2k = j2k_create_compress(mj2->cinfo); + cinfo->j2k_handle = mj2->j2k; + + return cinfo; +} + +void OPJ_CALLCONV mj2_setup_encoder(opj_mj2_t *movie, mj2_cparameters_t *parameters) { + if(movie && parameters) { + opj_jp2_t *jp2_struct; + + movie->num_htk = 0; /* No hint tracks*/ + movie->num_stk = 0; /* No sound tracks*/ + movie->num_vtk = 1; /* One video track*/ + + movie->brand = MJ2_MJ2; /* One brand: MJ2*/ + movie->num_cl = 2; /* Two compatible brands: MJ2 and MJ2S*/ + movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int)); + movie->cl[0] = MJ2_MJ2; + movie->cl[1] = MJ2_MJ2S; + movie->minversion = 0; /* Minimum version: 0 */ + + movie->tk = (mj2_tk_t*) opj_malloc(sizeof(mj2_tk_t)); /*Memory allocation for the video track*/ + movie->tk[0].track_ID = 1; /* Track ID = 1 */ + movie->tk[0].track_type = 0; /* Video track */ + movie->tk[0].Dim[0] = parameters->Dim[0]; + movie->tk[0].Dim[1] = parameters->Dim[1]; + movie->tk[0].w = parameters->w; + movie->tk[0].h = parameters->h; + movie->tk[0].CbCr_subsampling_dx = parameters->CbCr_subsampling_dx; + movie->tk[0].CbCr_subsampling_dy = parameters->CbCr_subsampling_dy; + movie->tk[0].sample_rate = parameters->frame_rate; + movie->tk[0].name_size = 0; + movie->tk[0].chunk = (mj2_chunk_t*) opj_malloc(sizeof(mj2_chunk_t)); + movie->tk[0].sample = (mj2_sample_t*) opj_malloc(sizeof(mj2_sample_t)); + movie->tk[0].depth = parameters->prec; + + jp2_struct = &movie->tk[0].jp2_struct; + jp2_struct->numcomps = parameters->numcomps; /* NC */ + jp2_struct->comps = (opj_jp2_comps_t*) opj_malloc(jp2_struct->numcomps * sizeof(opj_jp2_comps_t)); + jp2_struct->precedence = 0; /* PRECEDENCE*/ + jp2_struct->approx = 0; /* APPROX*/ + jp2_struct->brand = JP2_JP2; /* BR */ + jp2_struct->minversion = 0; /* MinV */ + jp2_struct->numcl = 1; + jp2_struct->cl = (unsigned int*) opj_malloc(jp2_struct->numcl * sizeof(unsigned int)); + jp2_struct->cl[0] = JP2_JP2; /* CL0 : JP2 */ + jp2_struct->C = 7; /* C : Always 7*/ + jp2_struct->UnkC = 0; /* UnkC, colorspace specified in colr box*/ + jp2_struct->IPR = 0; /* IPR, no intellectual property*/ + jp2_struct->w = parameters->w; + jp2_struct->h = parameters->h; + jp2_struct->bpc = 7; + jp2_struct->meth = parameters->meth; + jp2_struct->enumcs = parameters->enumcs; + } +} + +void OPJ_CALLCONV mj2_destroy_compress(opj_mj2_t *movie) { + if(movie) { + int i; + mj2_tk_t *tk=NULL; + + if (movie->cinfo->j2k_handle) { + j2k_destroy_compress(movie->j2k); + } + + if (movie->num_cl != 0) + opj_free(movie->cl); + + for (i = 0; i < movie->num_vtk + movie->num_stk + movie->num_htk; i++) { + tk = &movie->tk[i]; + if (tk->name_size != 0) + opj_free(tk->name); + if (tk->track_type == 0) {/* Video track*/ + if (tk->jp2_struct.comps != NULL) + opj_free(tk->jp2_struct.comps); + if (tk->jp2_struct.cl != NULL) + opj_free(tk->jp2_struct.cl); + if (tk->num_jp2x != 0) + opj_free(tk->jp2xdata); + + } + if (tk->num_url != 0) + opj_free(tk->url); + if (tk->num_urn != 0) + opj_free(tk->urn); + if (tk->num_br != 0) + opj_free(tk->br); + if (tk->num_tts != 0) + opj_free(tk->tts); + if (tk->num_chunks != 0) + opj_free(tk->chunk); + if (tk->num_samplestochunk != 0) + opj_free(tk->sampletochunk); + if (tk->num_samples != 0) + opj_free(tk->sample); + } + + opj_free(movie->tk); + } + opj_free(movie); +} + +/*@}*/ + +/*@}*/ + |