2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2003-2007, Francois-Olivier Devaux
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
29 #include "opj_includes.h"
32 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
35 /** @name Local static functions */
44 int mj2_read_boxhdr(mj2_box_t * box, opj_cio_t *cio)
46 box->init_pos = cio_tell(cio);
47 box->length = cio_read(cio, 4);
48 box->type = cio_read(cio, 4);
49 if (box->length == 1) {
50 if (cio_read(cio, 4) != 0) {
51 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Cannot handle box sizes higher than 2^32\n");
54 box->length = cio_read(cio, 4);
56 box->length = cio_numbytesleft(cio) + 12;
58 else if (box->length == 0) {
59 box->length = cio_numbytesleft(cio) + 8;
66 * Initialisation of a Standard Movie, given a simple movie structure defined by the user
67 * The movie will have one sample per chunk
69 * Arguments: opj_mj2_t * movie
70 * Several variables of "movie" must be defined in order to enable a correct execution of
72 * - The number of tracks of each type (movie->num_vtk, movie->num_stk, movie->num_htk)
73 * - The memory for each must be allocated (movie->tk)
75 * The track type (tk->track_type)
76 * The number of sample (tk->num_samples)
77 * The sample rate (tk->sample_rate)
81 int mj2_init_stdmovie(opj_mj2_t * movie)
88 movie->brand = MJ2_MJ2;
89 movie->minversion = 0;
91 movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int));
93 movie->cl[0] = MJ2_MJ2;
94 movie->cl[1] = MJ2_MJ2S;
95 time(<ime); /* Time since 1/1/70 */
96 movie->creation_time = (unsigned int) ltime + 2082844800; /* Seconds between 1/1/04 and 1/1/70 */
97 movie->timescale = 1000;
99 movie->rate = 1 << 16; /* Rate to play presentation (default = 0x00010000) */
100 movie->volume = 1 << 8; /* Movie volume (default = 0x0100) */
101 movie->trans_matrix[0] = 0x00010000; /* Transformation matrix for video */
102 movie->trans_matrix[1] = 0; /* Unity is { 0x00010000,0,0,0,0x00010000,0,0,0,0x40000000 } */
103 movie->trans_matrix[2] = 0;
104 movie->trans_matrix[3] = 0;
105 movie->trans_matrix[4] = 0x00010000;
106 movie->trans_matrix[5] = 0;
107 movie->trans_matrix[6] = 0;
108 movie->trans_matrix[7] = 0;
109 movie->trans_matrix[8] = 0x40000000;
110 movie->next_tk_id = 1;
113 w = tk0->w; h = tk0->h; prec = tk0->depth;
115 for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++)
117 mj2_tk_t *tk = &movie->tk[i];
120 tk->jp2_struct.comps = NULL;
121 tk->jp2_struct.cl = NULL;
123 if (tk->track_type == 0) /* no sound or hint track */
125 if (tk->num_samples == 0)
128 tk->w = w; tk->h = h; tk->depth = prec;
132 tk->timescale = 1000; /* Timescale = 1 ms */
134 tk->chunk[0].num_samples = 1;
135 tk->chunk[0].sample_descr_idx = 1;
137 tk->same_sample_size = 0;
139 tk->num_samplestochunk = 1; /* One sample per chunk */
140 tk->sampletochunk = (mj2_sampletochunk_t*) opj_malloc(tk->num_samplestochunk * sizeof(mj2_sampletochunk_t));
141 tk->sampletochunk[0].first_chunk = 1;
142 tk->sampletochunk[0].samples_per_chunk = 1;
143 tk->sampletochunk[0].sample_descr_idx = 1;
145 if (tk->sample_rate == 0)
147 opj_event_msg(tk->cinfo, EVT_ERROR,
148 "Error while initializing MJ2 movie: Sample rate of track"
149 " %d must be different from zero\n", tk->track_ID);
153 for (j = 0; j < tk->num_samples; j++)
155 tk->sample[j].sample_delta = tk->timescale / tk->sample_rate;
159 tk->tts = (mj2_tts_t*) opj_malloc(tk->num_tts * sizeof(mj2_tts_t));
160 tk->tts[0].sample_count = tk->num_samples;
161 tk->tts[0].sample_delta = tk->timescale / tk->sample_rate;
163 tk->horizresolution = 0x00480000; /* Horizontal resolution (typically 72) */
164 tk->vertresolution = 0x00480000; /* Vertical resolution (typically 72) */
165 tk->compressorname[0] = 0x0f4d6f74; /* Compressor Name[]: Motion JPEG2000 */
166 tk->compressorname[1] = 0x696f6e20;
167 tk->compressorname[2] = 0x4a504547;
168 tk->compressorname[3] = 0x32303030;
169 tk->compressorname[4] = 0x00120000;
170 tk->compressorname[5] = 0;
171 tk->compressorname[6] = 0x00000042;
172 tk->compressorname[7] = 0x000000DC;
173 tk->num_url = 0; /* Number of URL */
174 tk->num_urn = 0; /* Number of URN */
175 tk->graphicsmode = 0; /* Graphicsmode */
176 tk->opcolor[0] = 0; /* OpColor */
177 tk->opcolor[1] = 0; /* OpColor */
178 tk->opcolor[2] = 0; /* OpColor */
179 tk->creation_time = movie->creation_time; /* Seconds between 1/1/04 and 1/1/70 */
180 tk->language = 0; /* Language (undefined) */
182 tk->volume = 1 << 8; /* Movie volume (default = 0x0100) */
183 tk->trans_matrix[0] = 0x00010000; /* Transformation matrix for track */
184 tk->trans_matrix[1] = 0; /* Unity is { 0x00010000,0,0,0,0x00010000,0,0,0,0x40000000 } */
185 tk->trans_matrix[2] = 0;
186 tk->trans_matrix[3] = 0;
187 tk->trans_matrix[4] = 0x00010000;
188 tk->trans_matrix[5] = 0;
189 tk->trans_matrix[6] = 0;
190 tk->trans_matrix[7] = 0;
191 tk->trans_matrix[8] = 0x40000000;
194 tk->or_fieldcount = 1;
195 tk->or_fieldorder = 0;
197 tk->br = (unsigned int*) opj_malloc(tk->num_br * sizeof(unsigned int));
199 tk->br[1] = MJ2_J2P0;
201 tk->hsub = 2; /* 4:2:0 */
202 tk->vsub = 2; /* 4:2:0 */
205 tk->visual_w = tk->w << 16;
206 tk->visual_h = tk->h << 16;
217 * Time To Sample box Decompact
220 void mj2_tts_decompact(mj2_tk_t * tk)
224 for (i = 0; i < tk->num_tts; i++) {
225 tk->num_samples += tk->tts[i].sample_count;
228 tk->sample = (mj2_sample_t*) opj_malloc(tk->num_samples * sizeof(mj2_sample_t));
230 for (i = 0; i < tk->num_tts; i++) {
231 for (j = 0; j < tk->tts[i].sample_count; j++) {
232 tk->sample[j].sample_delta = tk->tts[i].sample_delta;
238 * Sample To Chunk box Decompact
241 void mj2_stsc_decompact(mj2_tk_t * tk)
243 unsigned int i, j, k, sampleno = 0;
245 if (tk->num_samplestochunk == 1) {
247 (unsigned int) ceil((double) tk->num_samples /
248 (double) tk->sampletochunk[0].samples_per_chunk);
249 tk->chunk = (mj2_chunk_t*) opj_malloc(tk->num_chunks * sizeof(mj2_chunk_t));
250 for (k = 0; k < tk->num_chunks; k++) {
251 tk->chunk[k].num_samples = tk->sampletochunk[0].samples_per_chunk;
255 tk->chunk = (mj2_chunk_t*) opj_malloc(tk->num_samples * sizeof(mj2_chunk_t));
257 for (i = 0; i < tk->num_samplestochunk -1 ; i++) {
258 for (j = tk->sampletochunk[i].first_chunk - 1;
259 j < tk->sampletochunk[i + 1].first_chunk - 1; j++) {
260 tk->chunk[j].num_samples = tk->sampletochunk[i].samples_per_chunk;
262 sampleno += tk->chunk[j].num_samples;
265 tk->num_chunks += (int)(tk->num_samples - sampleno) / tk->sampletochunk[tk->num_samplestochunk - 1].samples_per_chunk;
266 for (k = tk->sampletochunk[tk->num_samplestochunk - 1].first_chunk - 1;
267 k < tk->num_chunks; k++) {
268 tk->chunk[k].num_samples =
269 tk->sampletochunk[tk->num_samplestochunk - 1].samples_per_chunk;
271 tk->chunk = (mj2_chunk_t*)
272 opj_realloc(tk->chunk, tk->num_chunks * sizeof(mj2_chunk_t));
279 * Chunk offset box Decompact
282 void mj2_stco_decompact(mj2_tk_t * tk)
284 unsigned int i, j, k = 0;
285 unsigned int intra_chunk_offset;
287 for (i = 0; i < tk->num_chunks; i++) {
288 intra_chunk_offset = 0;
289 for (j = 0; j < tk->chunk[i].num_samples; j++) {
290 tk->sample[k].offset = intra_chunk_offset + tk->chunk[i].offset;
291 intra_chunk_offset += tk->sample[k].sample_size;
303 void mj2_write_jp(opj_cio_t *cio)
306 box.init_pos = cio_tell(cio);
309 cio_write(cio, MJ2_JP, 4); /* JP */
310 cio_write(cio, 0x0d0a870a, 4); /* 0x0d0a870a required in a JP box */
312 box.length = cio_tell(cio) - box.init_pos;
313 cio_seek(cio, box.init_pos);
314 cio_write(cio, box.length, 4);
315 cio_seek(cio, box.init_pos + box.length);
321 * JPEG 2000 signature
324 int mj2_read_jp(opj_cio_t *cio)
328 mj2_read_boxhdr(&box, cio);
329 if (MJ2_JP != box.type) { /* Check Marker */
330 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP Marker\n");
333 if (0x0d0a870a != cio_read(cio, 4)) { /* read the 0x0d0a870a required in a JP box */
334 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP Marker\n");
337 if (cio_tell(cio) - box.init_pos != box.length) { /* Check box length */
338 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP Box size \n");
351 void mj2_write_ftyp(opj_mj2_t * movie, opj_cio_t *cio)
355 box.init_pos = cio_tell(cio);
358 cio_write(cio, MJ2_FTYP, 4); /* FTYP */
359 cio_write(cio, movie->brand, 4); /* BR */
360 cio_write(cio, movie->minversion, 4); /* MinV */
362 for (i = 0; i < movie->num_cl; i++)
363 cio_write(cio, movie->cl[i], 4); /* CL */
365 box.length = cio_tell(cio) - box.init_pos;
366 cio_seek(cio, box.init_pos);
367 cio_write(cio, box.length, 4); /* Length */
368 cio_seek(cio, box.init_pos + box.length);
377 int mj2_read_ftyp(opj_mj2_t * movie, opj_cio_t *cio)
382 mj2_read_boxhdr(&box, cio); /* Box Size */
383 if (MJ2_FTYP != box.type) {
384 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected FTYP Marker\n");
388 movie->brand = cio_read(cio, 4); /* BR */
389 movie->minversion = cio_read(cio, 4); /* MinV */
390 movie->num_cl = (box.length - 16) / 4;
391 movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int));
393 for (i = movie->num_cl - 1; i > -1; i--)
394 movie->cl[i] = cio_read(cio, 4); /* CLi */
396 if (cio_tell(cio) - box.init_pos != box.length) {
397 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with FTYP Box\n");
410 void mj2_write_stco(mj2_tk_t * tk, opj_cio_t *cio)
415 box.init_pos = cio_tell(cio);
417 cio_write(cio, MJ2_STCO, 4); /* STCO */
419 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
421 cio_write(cio, tk->num_chunks, 4); /* Entry Count */
423 for (i = 0; i < tk->num_chunks; i++) {
424 cio_write(cio, tk->chunk[i].offset, 4); /* Entry offset */
427 box.length = cio_tell(cio) - box.init_pos;
428 cio_seek(cio, box.init_pos);
429 cio_write(cio, box.length, 4); /* L */
430 cio_seek(cio, box.init_pos + box.length);
439 int mj2_read_stco(mj2_tk_t * tk, opj_cio_t *cio)
444 mj2_read_boxhdr(&box, cio); /* Box Size */
445 if (MJ2_STCO != box.type) {
446 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STCO Marker\n");
450 if (0 != cio_read(cio, 1)) { /* Version = 0 */
451 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STCO box\n");
455 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
456 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STCO box. Expected flag 0\n");
461 if (cio_read(cio, 4) != tk->num_chunks) {
462 opj_event_msg(cio->cinfo, EVT_ERROR,
463 "Error in STCO box: expecting same amount of entry-count as chunks \n");
465 for (i = 0; i < tk->num_chunks; i++) {
466 tk->chunk[i].offset = cio_read(cio, 4); /* Entry offset */
470 mj2_stco_decompact(tk);
473 if (cio_tell(cio) - box.init_pos != box.length) {
474 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STCO Box size\n");
486 void mj2_write_stsz(mj2_tk_t * tk, opj_cio_t *cio)
491 box.init_pos = cio_tell(cio);
493 cio_write(cio, MJ2_STSZ, 4); /* STSZ */
495 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
497 if (tk->same_sample_size == 1) { /* If they all have the same size */
498 cio_write(cio, tk->sample[0].sample_size, 4); /* Size */
500 cio_write(cio, 1, 4); /* Entry count = 1 */
504 cio_write(cio, 0, 4); /* Sample Size = 0 becase they all have different sizes */
506 cio_write(cio, tk->num_samples, 4); /* Sample Count */
508 for (i = 0; i < tk->num_samples; i++) {
509 cio_write(cio, tk->sample[i].sample_size, 4);
513 box.length = cio_tell(cio) - box.init_pos;
514 cio_seek(cio, box.init_pos);
515 cio_write(cio, box.length, 4); /* L */
516 cio_seek(cio, box.init_pos + box.length);
525 int mj2_read_stsz(mj2_tk_t * tk, opj_cio_t *cio)
531 mj2_read_boxhdr(&box, cio); /* Box Size */
532 if (MJ2_STSZ != box.type) {
533 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSZ Marker\n");
538 if (0 != cio_read(cio, 1)) { /* Version = 0 */
539 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSZ box\n");
543 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
544 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSZ box. Expected flag 0\n");
548 sample_size = cio_read(cio, 4);
550 if (sample_size != 0) { /* Samples do have the same size */
551 tk->same_sample_size = 1;
552 for (i = 0; i < tk->num_samples; i++) {
553 tk->sample[i].sample_size = sample_size;
555 cio_skip(cio,4); /* Sample count = 1 */
557 tk->same_sample_size = 0;
558 if (tk->num_samples != cio_read(cio, 4)) { /* Sample count */
559 opj_event_msg(cio->cinfo, EVT_ERROR,
560 "Error in STSZ box. Expected that sample-count is number of samples in track\n");
563 for (i = 0; i < tk->num_samples; i++) {
564 tk->sample[i].sample_size = cio_read(cio, 4); /* Sample Size */
567 if (cio_tell(cio) - box.init_pos != box.length) {
568 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSZ Box size\n");
582 void mj2_write_stsc(mj2_tk_t * tk, opj_cio_t *cio)
587 box.init_pos = cio_tell(cio);
589 cio_write(cio, MJ2_STSC, 4); /* STSC */
591 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
593 cio_write(cio, tk->num_samplestochunk, 4); /* Entry Count */
595 for (i = 0; i < tk->num_samplestochunk; i++) {
596 cio_write(cio, tk->sampletochunk[i].first_chunk, 4); /* First Chunk */
597 cio_write(cio, tk->sampletochunk[i].samples_per_chunk, 4); /* Samples per chunk */
598 cio_write(cio, tk->sampletochunk[i].sample_descr_idx, 4); /* Samples description index */
602 box.length = cio_tell(cio) - box.init_pos;
603 cio_seek(cio, box.init_pos);
604 cio_write(cio, box.length, 4); /* L */
605 cio_seek(cio, box.init_pos + box.length);
614 int mj2_read_stsc(mj2_tk_t * tk, opj_cio_t *cio)
619 mj2_read_boxhdr(&box, cio); /* Box Size */
620 if (MJ2_STSC != box.type) {
621 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSC Marker\n");
626 if (0 != cio_read(cio, 1)) { /* Version = 0 */
627 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSC box\n");
631 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
632 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSC box. Expected flag 0\n");
636 tk->num_samplestochunk = cio_read(cio, 4);
638 tk->sampletochunk = (mj2_sampletochunk_t*) opj_malloc(tk->num_samplestochunk * sizeof(mj2_sampletochunk_t));
640 for (i = 0; i < tk->num_samplestochunk; i++) {
641 tk->sampletochunk[i].first_chunk = cio_read(cio, 4);
642 tk->sampletochunk[i].samples_per_chunk = cio_read(cio, 4);
643 tk->sampletochunk[i].sample_descr_idx = cio_read(cio, 4);
646 mj2_stsc_decompact(tk); /* decompact sample to chunk box */
649 if (cio_tell(cio) - box.init_pos != box.length) {
650 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSC Box size\n");
662 void mj2_write_stts(mj2_tk_t * tk, opj_cio_t *cio)
668 box.init_pos = cio_tell(cio);
670 cio_write(cio, MJ2_STTS, 4); /* STTS */
672 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
674 cio_write(cio, tk->num_tts, 4); /* entry_count */
675 for (i = 0; i < tk->num_tts; i++) {
676 cio_write(cio, tk->tts[i].sample_count, 4); /* Sample-count */
677 cio_write(cio, tk->tts[i].sample_delta, 4); /* Sample-Delta */
680 box.length = cio_tell(cio) - box.init_pos;
681 cio_seek(cio, box.init_pos);
682 cio_write(cio, box.length, 4); /* L */
683 cio_seek(cio, box.init_pos + box.length);
692 int mj2_read_stts(mj2_tk_t * tk, opj_cio_t *cio)
698 mj2_read_boxhdr(&box, cio);
699 if (MJ2_STTS != box.type) {
700 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STTS Marker\n");
705 if (0 != cio_read(cio, 1)) { /* Version = 0 */
706 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STTS box\n");
710 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
711 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STTS box. Expected flag 0\n");
715 tk->num_tts = cio_read(cio, 4);
717 tk->tts = (mj2_tts_t*) opj_malloc(tk->num_tts * sizeof(mj2_tts_t));
719 for (i = 0; i < tk->num_tts; i++) {
720 tk->tts[i].sample_count = cio_read(cio, 4);
721 tk->tts[i].sample_delta = cio_read(cio, 4);
724 mj2_tts_decompact(tk);
726 if (cio_tell(cio) - box.init_pos != box.length) {
727 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STTS Box size\n");
739 void mj2_write_fiel(mj2_tk_t * tk, opj_cio_t *cio)
744 box.init_pos = cio_tell(cio);
746 cio_write(cio, MJ2_FIEL, 4); /* STTS */
748 cio_write(cio, tk->fieldcount, 1); /* Field count */
749 cio_write(cio, tk->fieldorder, 1); /* Field order */
752 box.length = cio_tell(cio) - box.init_pos;
753 cio_seek(cio, box.init_pos);
754 cio_write(cio, box.length, 4); /* L */
755 cio_seek(cio, box.init_pos + box.length);
764 int mj2_read_fiel(mj2_tk_t * tk, opj_cio_t *cio)
769 mj2_read_boxhdr(&box, cio);
770 if (MJ2_FIEL != box.type) {
771 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected FIEL Marker\n");
776 tk->fieldcount = cio_read(cio, 1);
777 tk->fieldorder = cio_read(cio, 1);
779 if (cio_tell(cio) - box.init_pos != box.length) {
780 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with FIEL Box size\n");
789 * Original Format Box
792 void mj2_write_orfo(mj2_tk_t * tk, opj_cio_t *cio)
796 box.init_pos = cio_tell(cio);
798 cio_write(cio, MJ2_ORFO, 4);
800 cio_write(cio, tk->or_fieldcount, 1); /* Original Field count */
801 cio_write(cio, tk->or_fieldorder, 1); /* Original Field order */
804 box.length = cio_tell(cio) - box.init_pos;
805 cio_seek(cio, box.init_pos);
806 cio_write(cio, box.length, 4); /* L */
807 cio_seek(cio, box.init_pos + box.length);
813 * Original Format Box
816 int mj2_read_orfo(mj2_tk_t * tk, opj_cio_t *cio)
821 mj2_read_boxhdr(&box, cio);
822 if (MJ2_ORFO != box.type) {
823 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected ORFO Marker\n");
828 tk->or_fieldcount = cio_read(cio, 1);
829 tk->or_fieldorder = cio_read(cio, 1);
831 if (cio_tell(cio) - box.init_pos != box.length) {
832 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with ORFO Box size\n");
844 void mj2_write_jp2p(mj2_tk_t * tk, opj_cio_t *cio)
850 box.init_pos = cio_tell(cio);
852 cio_write(cio, MJ2_JP2P, 4);
854 cio_write(cio, 0, 4); /* Version 0, flags =0 */
856 for (i = 0; i < tk->num_br; i++) {
857 cio_write(cio, tk->br[i], 4);
860 box.length = cio_tell(cio) - box.init_pos;
861 cio_seek(cio, box.init_pos);
862 cio_write(cio, box.length, 4); /* L */
863 cio_seek(cio, box.init_pos + box.length);
872 int mj2_read_jp2p(mj2_tk_t * tk, opj_cio_t *cio)
878 mj2_read_boxhdr(&box, cio);
879 if (MJ2_JP2P != box.type) {
880 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP2P Marker\n");
884 if (0 != cio_read(cio, 1)) { /* Version = 0 */
885 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in JP2P box\n");
889 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
890 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in JP2P box. Expected flag 0\n");
895 tk->num_br = (box.length - 12) / 4;
896 tk->br = (unsigned int*) opj_malloc(tk->num_br * sizeof(unsigned int));
898 for (i = 0; i < tk->num_br; i++) {
899 tk->br[i] = cio_read(cio, 4);
902 if (cio_tell(cio) - box.init_pos != box.length) {
903 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP2P Box size\n");
915 void mj2_write_jp2x(mj2_tk_t * tk, opj_cio_t *cio)
921 box.init_pos = cio_tell(cio);
923 cio_write(cio, MJ2_JP2X, 4);
925 for (i = 0; i < tk->num_jp2x; i++) {
926 cio_write(cio, tk->jp2xdata[i], 1);
929 box.length = cio_tell(cio) - box.init_pos;
930 cio_seek(cio, box.init_pos);
931 cio_write(cio, box.length, 4); /* L */
932 cio_seek(cio, box.init_pos + box.length);
941 int mj2_read_jp2x(mj2_tk_t * tk, opj_cio_t *cio)
947 mj2_read_boxhdr(&box, cio);
948 if (MJ2_JP2X != box.type) {
949 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JP2X Marker\n");
954 tk->num_jp2x = (box.length - 8);
955 tk->jp2xdata = (unsigned char*) opj_malloc(tk->num_jp2x * sizeof(unsigned char));
957 for (i = 0; i < tk->num_jp2x; i++) {
958 tk->jp2xdata[i] = cio_read(cio, 1);
961 if (cio_tell(cio) - box.init_pos != box.length) {
962 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JP2X Box size\n");
971 * MJP2 Subsampling Box
974 void mj2_write_jsub(mj2_tk_t * tk, opj_cio_t *cio)
979 box.init_pos = cio_tell(cio);
981 cio_write(cio, MJ2_JSUB, 4);
983 cio_write(cio, tk->hsub, 1);
984 cio_write(cio, tk->vsub, 1);
985 cio_write(cio, tk->hoff, 1);
986 cio_write(cio, tk->voff, 1);
988 box.length = cio_tell(cio) - box.init_pos;
989 cio_seek(cio, box.init_pos);
990 cio_write(cio, box.length, 4); /* L */
991 cio_seek(cio, box.init_pos + box.length);
997 * MJP2 Subsampling Box
1000 int mj2_read_jsub(mj2_tk_t * tk, opj_cio_t *cio)
1004 mj2_read_boxhdr(&box, cio);
1005 if (MJ2_JSUB != box.type) {
1006 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected JSUB Marker\n");
1010 tk->hsub = cio_read(cio, 1);
1011 tk->vsub = cio_read(cio, 1);
1012 tk->hoff = cio_read(cio, 1);;
1013 tk->voff = cio_read(cio, 1);
1015 if (cio_tell(cio) - box.init_pos != box.length) {
1016 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with JSUB Box size\n");
1023 * Write the SMJ2 box
1025 * Visual Sample Entry Description
1028 void mj2_write_smj2(mj2_tk_t * tk, opj_cio_t *cio)
1032 box.init_pos = cio_tell(cio);
1034 cio_write(cio, MJ2_MJ2, 4); /* MJ2 */
1036 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1038 cio_write(cio, 1, 4);
1040 cio_write(cio, 0, 2); /* Pre-defined */
1042 cio_write(cio, 0, 2); /* Reserved */
1044 cio_write(cio, 0, 4); /* Pre-defined */
1045 cio_write(cio, 0, 4); /* Pre-defined */
1046 cio_write(cio, 0, 4); /* Pre-defined */
1048 cio_write(cio, tk->w, 2); /* Width */
1049 cio_write(cio, tk->h, 2); /* Height */
1051 cio_write(cio, tk->horizresolution, 4); /* Horizontal resolution */
1052 cio_write(cio, tk->vertresolution, 4); /* Vertical resolution */
1054 cio_write(cio, 0, 4); /* Reserved */
1056 cio_write(cio, 1, 2); /* Pre-defined = 1 */
1058 cio_write(cio, tk->compressorname[0], 4); /* Compressor Name */
1059 cio_write(cio, tk->compressorname[1], 4);
1060 cio_write(cio, tk->compressorname[2], 4);
1061 cio_write(cio, tk->compressorname[3], 4);
1062 cio_write(cio, tk->compressorname[4], 4);
1063 cio_write(cio, tk->compressorname[5], 4);
1064 cio_write(cio, tk->compressorname[6], 4);
1065 cio_write(cio, tk->compressorname[7], 4);
1067 cio_write(cio, tk->depth, 2); /* Depth */
1069 cio_write(cio, 0xffff, 2); /* Pre-defined = -1 */
1071 jp2_write_jp2h(&tk->jp2_struct, cio);
1073 mj2_write_fiel(tk, cio);
1075 if (tk->num_br != 0)
1076 mj2_write_jp2p(tk, cio);
1077 if (tk->num_jp2x != 0)
1078 mj2_write_jp2x(tk, cio);
1080 mj2_write_jsub(tk, cio);
1081 mj2_write_orfo(tk, cio);
1083 box.length = cio_tell(cio) - box.init_pos;
1084 cio_seek(cio, box.init_pos);
1085 cio_write(cio, box.length, 4); /* L */
1086 cio_seek(cio, box.init_pos + box.length);
1092 * Visual Sample Entry Description
1095 int mj2_read_smj2(opj_image_t * img, mj2_tk_t * tk, opj_cio_t *cio)
1100 opj_jp2_color_t color;
1102 mj2_read_boxhdr(&box, cio);
1104 if (MJ2_MJ2 != box.type) {
1105 opj_event_msg(cio->cinfo, EVT_ERROR, "Error in SMJ2 box: Expected MJ2 Marker\n");
1109 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1110 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MJP2 box\n");
1114 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
1115 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in MJP2 box. Expected flag 0\n");
1121 cio_skip(cio,2); /* Pre-defined */
1123 cio_skip(cio,2); /* Reserved */
1125 cio_skip(cio,4); /* Pre-defined */
1126 cio_skip(cio,4); /* Pre-defined */
1127 cio_skip(cio,4); /* Pre-defined */
1129 tk->w = cio_read(cio, 2); /* Width */
1130 tk->h = cio_read(cio, 2); /* Height */
1132 tk->horizresolution = cio_read(cio, 4); /* Horizontal resolution */
1133 tk->vertresolution = cio_read(cio, 4); /* Vertical resolution */
1135 cio_skip(cio,4); /* Reserved */
1137 cio_skip(cio,2); /* Pre-defined = 1 */
1139 tk->compressorname[0] = cio_read(cio, 4); /* Compressor Name */
1140 tk->compressorname[1] = cio_read(cio, 4);
1141 tk->compressorname[2] = cio_read(cio, 4);
1142 tk->compressorname[3] = cio_read(cio, 4);
1143 tk->compressorname[4] = cio_read(cio, 4);
1144 tk->compressorname[5] = cio_read(cio, 4);
1145 tk->compressorname[6] = cio_read(cio, 4);
1146 tk->compressorname[7] = cio_read(cio, 4);
1148 tk->depth = cio_read(cio, 2); /* Depth */
1150 /* Init std value */
1154 tk->or_fieldcount = 1;
1155 tk->or_fieldorder = 0;
1157 cio_skip(cio,2); /* Pre-defined = -1 */
1158 memset(&color, 0, sizeof(opj_jp2_color_t));
1160 if (!jp2_read_jp2h(&tk->jp2_struct, cio, &color)) {
1161 opj_event_msg(tk->cinfo, EVT_ERROR, "Error reading JP2H Box\n");
1165 tk->jp2_struct.comps = (opj_jp2_comps_t*) opj_malloc(tk->jp2_struct.numcomps * sizeof(opj_jp2_comps_t));
1166 tk->jp2_struct.cl = (unsigned int*) opj_malloc(sizeof(unsigned int));
1171 for (i = 0; cio_tell(cio) - box.init_pos < box.length; i++) {
1172 mj2_read_boxhdr(&box2, cio);
1173 cio_seek(cio, box2.init_pos);
1174 switch (box2.type) {
1176 if (mj2_read_fiel(tk, cio))
1181 if (mj2_read_jp2p(tk, cio))
1186 if (mj2_read_jp2x(tk, cio))
1191 if (mj2_read_jsub(tk, cio))
1196 if (mj2_read_orfo(tk, cio))
1201 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MJP2 Box size\n");
1212 * Write the STSD box
1214 * Sample Description
1217 void mj2_write_stsd(mj2_tk_t * tk, opj_cio_t *cio)
1221 box.init_pos = cio_tell(cio);
1223 cio_write(cio, MJ2_STSD, 4); /* STSD */
1225 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1227 cio_write(cio, 1, 4); /* entry_count = 1 (considering same JP2 headerboxes) */
1229 if (tk->track_type == 0) {
1230 mj2_write_smj2(tk, cio);
1231 } else if (tk->track_type == 1) {
1234 if (tk->track_type == 2) {
1239 box.length = cio_tell(cio) - box.init_pos;
1240 cio_seek(cio, box.init_pos);
1241 cio_write(cio, box.length, 4); /* L */
1242 cio_seek(cio, box.init_pos + box.length);
1248 * Sample Description
1251 int mj2_read_stsd(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio)
1254 int entry_count, len_2skip;
1258 mj2_read_boxhdr(&box, cio);
1260 if (MJ2_STSD != box.type) {
1261 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STSD Marker\n");
1265 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1266 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in STSD box\n");
1270 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
1271 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in STSD box. Expected flag 0\n");
1275 entry_count = cio_read(cio, 4);
1277 if (tk->track_type == 0) {
1278 for (i = 0; i < entry_count; i++) {
1279 if (mj2_read_smj2(img, tk, cio))
1282 } else if (tk->track_type == 1) {
1283 len_2skip = cio_read(cio, 4); // Not implemented -> skipping box
1284 cio_skip(cio,len_2skip - 4);
1285 } else if (tk->track_type == 2) {
1286 len_2skip = cio_read(cio, 4); // Not implemented -> skipping box
1287 cio_skip(cio,len_2skip - 4);
1291 if (cio_tell(cio) - box.init_pos != box.length) {
1292 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STSD Box size\n");
1299 * Write the STBL box
1301 * Sample table box box
1304 void mj2_write_stbl(mj2_tk_t * tk, opj_cio_t *cio)
1308 box.init_pos = cio_tell(cio);
1310 cio_write(cio, MJ2_STBL, 4); /* STBL */
1312 mj2_write_stsd(tk, cio);
1313 mj2_write_stts(tk, cio);
1314 mj2_write_stsc(tk, cio);
1315 mj2_write_stsz(tk, cio);
1316 mj2_write_stco(tk, cio);
1318 box.length = cio_tell(cio) - box.init_pos;
1319 cio_seek(cio, box.init_pos);
1320 cio_write(cio, box.length, 4); /* L */
1321 cio_seek(cio, box.init_pos + box.length);
1327 * Sample table box box
1330 int mj2_read_stbl(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio)
1334 mj2_read_boxhdr(&box, cio);
1335 if (MJ2_STBL != box.type) {
1336 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected STBL Marker\n");
1340 if (mj2_read_stsd(tk, img, cio))
1342 if (mj2_read_stts(tk, cio))
1344 if (mj2_read_stsc(tk, cio))
1346 if (mj2_read_stsz(tk, cio))
1348 if (mj2_read_stco(tk, cio))
1351 if (cio_tell(cio) - box.init_pos != box.length) {
1352 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with STBL Box size\n");
1364 void mj2_write_url(mj2_tk_t * tk, int url_num, opj_cio_t *cio)
1368 box.init_pos = cio_tell(cio);
1370 cio_write(cio, MJ2_URL, 4); /* URL */
1373 cio_write(cio, 1, 4); /* Version = 0, flags = 1 because stored in same file */
1375 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1376 cio_write(cio, tk->url[url_num - 1].location[0], 4);
1377 cio_write(cio, tk->url[url_num - 1].location[1], 4);
1378 cio_write(cio, tk->url[url_num - 1].location[2], 4);
1379 cio_write(cio, tk->url[url_num - 1].location[3], 4);
1382 box.length = cio_tell(cio) - box.init_pos;
1383 cio_seek(cio, box.init_pos);
1384 cio_write(cio, box.length, 4); /* L */
1385 cio_seek(cio, box.init_pos + box.length);
1394 int mj2_read_url(mj2_tk_t * tk, int urn_num, opj_cio_t *cio)
1398 mj2_read_boxhdr(&box, cio);
1399 if (MJ2_URL != box.type) {
1400 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected URL Marker\n");
1404 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1405 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in URL box\n");
1409 if (1 != cio_read(cio, 3)) { /* If flags = 1 --> media data in file */
1410 tk->url[urn_num].location[0] = cio_read(cio, 4);
1411 tk->url[urn_num].location[1] = cio_read(cio, 4);
1412 tk->url[urn_num].location[2] = cio_read(cio, 4);
1413 tk->url[urn_num].location[3] = cio_read(cio, 4);
1419 if (cio_tell(cio) - box.init_pos != box.length) {
1420 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with URL Box size\n");
1432 void mj2_write_urn(mj2_tk_t * tk, int urn_num, opj_cio_t *cio)
1436 box.init_pos = cio_tell(cio);
1438 cio_write(cio, MJ2_URN, 4); /* URN */
1440 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1442 cio_write(cio, tk->urn[urn_num].name[0], 4);
1443 cio_write(cio, tk->urn[urn_num].name[1], 4);
1444 cio_write(cio, tk->urn[urn_num].name[2], 4);
1445 cio_write(cio, tk->urn[urn_num].name[3], 4);
1446 cio_write(cio, tk->urn[urn_num].location[0], 4);
1447 cio_write(cio, tk->urn[urn_num].location[1], 4);
1448 cio_write(cio, tk->urn[urn_num].location[2], 4);
1449 cio_write(cio, tk->urn[urn_num].location[3], 4);
1451 box.length = cio_tell(cio) - box.init_pos;
1452 cio_seek(cio, box.init_pos);
1453 cio_write(cio, box.length, 4); /* L */
1454 cio_seek(cio, box.init_pos + box.length);
1463 int mj2_read_urn(mj2_tk_t * tk, int urn_num, opj_cio_t *cio)
1468 mj2_read_boxhdr(&box, cio);
1469 if (MJ2_URN != box.type) {
1470 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected URN Marker\n");
1474 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1475 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in URN box\n");
1479 if (1 != cio_read(cio, 3)) { /* If flags = 1 --> media data in file */
1480 tk->urn[urn_num].name[0] = cio_read(cio, 4);
1481 tk->urn[urn_num].name[1] = cio_read(cio, 4);
1482 tk->urn[urn_num].name[2] = cio_read(cio, 4);
1483 tk->urn[urn_num].name[3] = cio_read(cio, 4);
1484 tk->urn[urn_num].location[0] = cio_read(cio, 4);
1485 tk->urn[urn_num].location[1] = cio_read(cio, 4);
1486 tk->urn[urn_num].location[2] = cio_read(cio, 4);
1487 tk->urn[urn_num].location[3] = cio_read(cio, 4);
1491 if (cio_tell(cio) - box.init_pos != box.length) {
1492 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with URN Box size\n");
1500 * Write the DREF box
1502 * Data reference box
1505 void mj2_write_dref(mj2_tk_t * tk, opj_cio_t *cio)
1510 box.init_pos = cio_tell(cio);
1512 cio_write(cio, MJ2_DREF, 4); /* DREF */
1514 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1516 if (tk->num_url + tk->num_urn == 0) { /* Media data in same file */
1517 cio_write(cio, 1, 4); /* entry_count = 1 */
1518 mj2_write_url(tk, 0, cio);
1520 cio_write(cio, tk->num_url + tk->num_urn, 4); /* entry_count */
1522 for (i = 0; i < tk->num_url; i++)
1523 mj2_write_url(tk, i + 1, cio);
1525 for (i = 0; i < tk->num_urn; i++)
1526 mj2_write_urn(tk, i, cio);
1529 box.length = cio_tell(cio) - box.init_pos;
1530 cio_seek(cio, box.init_pos);
1531 cio_write(cio, box.length, 4); /* L */
1532 cio_seek(cio, box.init_pos + box.length);
1538 * Data reference box
1541 int mj2_read_dref(mj2_tk_t * tk, opj_cio_t *cio)
1545 int entry_count, marker;
1548 mj2_read_boxhdr(&box, cio);
1549 if (MJ2_DREF != box.type) {
1550 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected DREF Marker\n");
1554 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1555 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in DREF box\n");
1559 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
1560 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in DREF box. Expected flag 0\n");
1564 entry_count = cio_read(cio, 4);
1568 for (i = 0; i < entry_count; i++) {
1570 marker = cio_read(cio, 4);
1571 if (marker == MJ2_URL) {
1574 if (mj2_read_url(tk, tk->num_url, cio))
1576 } else if (marker == MJ2_URN) {
1579 if (mj2_read_urn(tk, tk->num_urn, cio))
1582 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with in DREF box. Expected URN or URL box\n");
1589 if (cio_tell(cio) - box.init_pos != box.length) {
1590 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with DREF Box size\n");
1597 * Write the DINF box
1599 * Data information box
1602 void mj2_write_dinf(mj2_tk_t * tk, opj_cio_t *cio)
1606 box.init_pos = cio_tell(cio);
1608 cio_write(cio, MJ2_DINF, 4); /* DINF */
1610 mj2_write_dref(tk, cio);
1612 box.length = cio_tell(cio) - box.init_pos;
1613 cio_seek(cio, box.init_pos);
1614 cio_write(cio, box.length, 4); /* L */
1615 cio_seek(cio, box.init_pos + box.length);
1621 * Data information box
1624 int mj2_read_dinf(mj2_tk_t * tk, opj_cio_t *cio)
1628 mj2_read_boxhdr(&box, cio);
1629 if (MJ2_DINF != box.type) {
1630 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected DINF Marker\n");
1634 if (mj2_read_dref(tk, cio))
1637 if (cio_tell(cio) - box.init_pos != box.length) {
1638 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with DINF Box size\n");
1645 * Write the VMHD box
1647 * Video Media information box
1650 void mj2_write_vmhd(mj2_tk_t * tk, opj_cio_t *cio)
1654 box.init_pos = cio_tell(cio);
1656 cio_write(cio, MJ2_VMHD, 4); /* VMHD */
1658 cio_write(cio, 1, 4); /* Version = 0, flags = 1 */
1660 cio_write(cio, tk->graphicsmode, 2);
1661 cio_write(cio, tk->opcolor[0], 2);
1662 cio_write(cio, tk->opcolor[1], 2);
1663 cio_write(cio, tk->opcolor[2], 2);
1665 box.length = cio_tell(cio) - box.init_pos;
1666 cio_seek(cio, box.init_pos);
1667 cio_write(cio, box.length, 4); /* L */
1668 cio_seek(cio, box.init_pos + box.length);
1674 * Video Media information box
1677 int mj2_read_vmhd(mj2_tk_t * tk, opj_cio_t *cio)
1681 mj2_read_boxhdr(&box, cio);
1682 if (MJ2_VMHD != box.type) {
1683 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected VMHD Marker\n");
1687 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1688 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in VMHD box\n");
1692 if (1 != cio_read(cio, 3)) { /* Flags = 1 */
1693 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in VMHD box. Expected flag 1\n");
1698 tk->graphicsmode = cio_read(cio, 2);
1699 tk->opcolor[0] = cio_read(cio, 2);
1700 tk->opcolor[1] = cio_read(cio, 2);
1701 tk->opcolor[2] = cio_read(cio, 2);
1703 if (cio_tell(cio) - box.init_pos != box.length) {
1704 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with VMHD Box size\n");
1711 * Write the SMHD box
1713 * Sound Media information box
1716 void mj2_write_smhd(mj2_tk_t * tk, opj_cio_t *cio)
1720 box.init_pos = cio_tell(cio);
1722 cio_write(cio, MJ2_SMHD, 4); /* SMHD */
1724 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1726 cio_write(cio, tk->balance, 2);
1728 cio_write(cio, 0, 2); /* Reserved */
1730 box.length = cio_tell(cio) - box.init_pos;
1731 cio_seek(cio, box.init_pos);
1732 cio_write(cio, box.length, 4); /* L */
1733 cio_seek(cio, box.init_pos + box.length);
1739 * Sound Media information box
1742 int mj2_read_smhd(mj2_tk_t * tk, opj_cio_t *cio)
1746 mj2_read_boxhdr(&box, cio);
1747 if (MJ2_SMHD != box.type) {
1748 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected SMHD Marker\n");
1752 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1753 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in SMHD box\n");
1757 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
1758 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in SMHD box. Expected flag 0\n");
1763 tk->balance = cio_read(cio, 2);
1765 /* Init variables to zero to avoid problems when freeeing memory
1766 The values will possibly be overidded when decoding the track structure */
1772 tk->num_samplestochunk = 0;
1773 tk->num_samples = 0;
1775 cio_skip(cio,2); /* Reserved */
1777 if (cio_tell(cio) - box.init_pos != box.length) {
1778 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with SMHD Box size\n");
1785 * Write the HMHD box
1787 * Hint Media information box
1790 void mj2_write_hmhd(mj2_tk_t * tk, opj_cio_t *cio)
1794 box.init_pos = cio_tell(cio);
1796 cio_write(cio, MJ2_HMHD, 4); /* HMHD */
1798 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1800 cio_write(cio, tk->maxPDUsize, 2);
1801 cio_write(cio, tk->avgPDUsize, 2);
1802 cio_write(cio, tk->maxbitrate, 4);
1803 cio_write(cio, tk->avgbitrate, 4);
1804 cio_write(cio, tk->slidingavgbitrate, 4);
1806 box.length = cio_tell(cio) - box.init_pos;
1807 cio_seek(cio, box.init_pos);
1808 cio_write(cio, box.length, 4); /* L */
1809 cio_seek(cio, box.init_pos + box.length);
1815 * Hint Media information box
1818 int mj2_read_hmhd(mj2_tk_t * tk, opj_cio_t *cio)
1822 mj2_read_boxhdr(&box, cio);
1823 if (MJ2_HMHD != box.type) {
1824 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected HMHD Marker\n");
1828 if (0 != cio_read(cio, 1)) { /* Version = 0 */
1829 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in HMHD box\n");
1833 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
1834 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in HMHD box. Expected flag 0\n");
1839 tk->maxPDUsize = cio_read(cio, 2);
1840 tk->avgPDUsize = cio_read(cio, 2);
1841 tk->maxbitrate = cio_read(cio, 4);
1842 tk->avgbitrate = cio_read(cio, 4);
1843 tk->slidingavgbitrate = cio_read(cio, 4);
1845 /* Init variables to zero to avoid problems when freeeing memory
1846 The values will possibly be overidded when decoding the track structure */
1852 tk->num_samplestochunk = 0;
1853 tk->num_samples = 0;
1856 if (cio_tell(cio) - box.init_pos != box.length) {
1857 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with HMHD Box size\n");
1864 * Write the MINF box
1866 * Media information box
1869 void mj2_write_minf(mj2_tk_t * tk, opj_cio_t *cio)
1873 box.init_pos = cio_tell(cio);
1875 cio_write(cio, MJ2_MINF, 4); /* MINF */
1877 if (tk->track_type == 0) {
1878 mj2_write_vmhd(tk, cio);
1879 } else if (tk->track_type == 1) {
1880 mj2_write_smhd(tk, cio);
1881 } else if (tk->track_type == 2) {
1882 mj2_write_hmhd(tk, cio);
1885 mj2_write_dinf(tk, cio);
1886 mj2_write_stbl(tk, cio);
1888 box.length = cio_tell(cio) - box.init_pos;
1889 cio_seek(cio, box.init_pos);
1890 cio_write(cio, box.length, 4); /* L */
1891 cio_seek(cio, box.init_pos + box.length);
1897 * Media information box
1900 int mj2_read_minf(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio)
1903 unsigned int box_type;
1906 mj2_read_boxhdr(&box, cio);
1907 if (MJ2_MINF != box.type) {
1908 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MINF Marker\n");
1913 box_type = cio_read(cio, 4);
1916 if (box_type == MJ2_VMHD) {
1917 if (mj2_read_vmhd(tk, cio))
1919 } else if (box_type == MJ2_SMHD) {
1920 if (mj2_read_smhd(tk, cio))
1922 } else if (box_type == MJ2_HMHD) {
1923 if (mj2_read_hmhd(tk, cio))
1926 opj_event_msg(cio->cinfo, EVT_ERROR, "Error in MINF box expected vmhd, smhd or hmhd\n");
1930 if (mj2_read_dinf(tk, cio))
1933 if (mj2_read_stbl(tk, img, cio))
1936 if (cio_tell(cio) - box.init_pos != box.length) {
1937 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MINF Box size\n");
1944 * Write the HDLR box
1946 * Handler reference box
1949 void mj2_write_hdlr(mj2_tk_t * tk, opj_cio_t *cio)
1953 box.init_pos = cio_tell(cio);
1955 cio_write(cio, MJ2_HDLR, 4); /* HDLR */
1957 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
1959 cio_write(cio, 0, 4); /* Predefine */
1961 tk->name = 0; /* The track name is immediately determined by the track type */
1963 if (tk->track_type == 0) {
1964 tk->handler_type = 0x76696465; /* Handler type: vide */
1965 cio_write(cio, tk->handler_type, 4);
1967 cio_write(cio, 0, 4);
1968 cio_write(cio, 0, 4);
1969 cio_write(cio, 0, 4); /* Reserved */
1971 cio_write(cio, 0x76696465, 4);
1972 cio_write(cio, 0x6F206d65, 4);
1973 cio_write(cio, 0x64696120, 4);
1974 cio_write(cio, 0x74726163, 4);
1975 cio_write(cio, 0x6b00, 2); /* String: video media track */
1976 } else if (tk->track_type == 1) {
1977 tk->handler_type = 0x736F756E; /* Handler type: soun */
1978 cio_write(cio, tk->handler_type, 4);
1980 cio_write(cio, 0, 4);
1981 cio_write(cio, 0, 4);
1982 cio_write(cio, 0, 4); /* Reserved */
1984 cio_write(cio, 0x536F756E, 4);
1985 cio_write(cio, 0x6400, 2); /* String: Sound */
1986 } else if (tk->track_type == 2) {
1987 tk->handler_type = 0x68696E74; /* Handler type: hint */
1988 cio_write(cio, tk->handler_type, 4);
1990 cio_write(cio, 0, 4);
1991 cio_write(cio, 0, 4);
1992 cio_write(cio, 0, 4); /* Reserved */
1994 cio_write(cio, 0x48696E74, 4);
1995 cio_write(cio, 0, 2); /* String: Hint */
1998 box.length = cio_tell(cio) - box.init_pos;
1999 cio_seek(cio, box.init_pos);
2000 cio_write(cio, box.length, 4); /* L */
2001 cio_seek(cio, box.init_pos + box.length);
2007 * Handler reference box
2010 int mj2_read_hdlr(mj2_tk_t * tk, opj_cio_t *cio)
2015 mj2_read_boxhdr(&box, cio);
2016 if (MJ2_HDLR != box.type) {
2017 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected HDLR Marker\n");
2022 if (0 != cio_read(cio, 1)) { /* Version = 0 */
2023 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in HDLR box\n");
2027 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
2028 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in HDLR box. Expected flag 0\n");
2032 cio_skip(cio,4); /* Reserved */
2034 tk->handler_type = cio_read(cio, 4);
2035 cio_skip(cio,12); /* Reserved */
2037 tk->name_size = box.length - 32;
2039 tk->name = (char*) opj_malloc(tk->name_size * sizeof(char));
2040 for (i = 0; i < tk->name_size; i++) {
2041 tk->name[i] = cio_read(cio, 1); /* Name */
2044 if (cio_tell(cio) - box.init_pos != box.length) {
2045 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with HDLR Box size\n");
2052 * Write the MDHD box
2057 void mj2_write_mdhd(mj2_tk_t * tk, opj_cio_t *cio)
2062 unsigned int modification_time;
2064 box.init_pos = cio_tell(cio);
2066 cio_write(cio, MJ2_MDHD, 4); /* MDHD */
2068 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
2070 cio_write(cio, tk->creation_time, 4); /* Creation Time */
2072 time(<ime); /* Time since 1/1/70 */
2073 modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */
2075 cio_write(cio, modification_time, 4); /* Modification Time */
2077 cio_write(cio, tk->timescale, 4); /* Timescale */
2081 for (i = 0; i < tk->num_samples; i++)
2082 tk->duration += tk->sample[i].sample_delta;
2084 cio_write(cio, tk->duration, 4); /* Duration */
2086 cio_write(cio, tk->language, 2); /* Language */
2088 cio_write(cio, 0, 2); /* Predefined */
2090 box.length = cio_tell(cio) - box.init_pos;
2091 cio_seek(cio, box.init_pos);
2092 cio_write(cio, box.length, 4); /* L */
2093 cio_seek(cio, box.init_pos + box.length);
2102 int mj2_read_mdhd(mj2_tk_t * tk, opj_cio_t *cio)
2106 mj2_read_boxhdr(&box, cio);
2107 if (!(MJ2_MHDR == box.type || MJ2_MDHD == box.type)) { // Kakadu writes MHDR instead of MDHD
2108 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MDHD Marker\n");
2112 if (0 != cio_read(cio, 1)) { /* Version = 0 */
2113 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MDHD box\n");
2117 if (0 != cio_read(cio, 3)) { /* Flags = 0 */
2118 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with flag in MDHD box. Expected flag 0\n");
2123 tk->creation_time = cio_read(cio, 4); /* Creation Time */
2125 tk->modification_time = cio_read(cio, 4); /* Modification Time */
2127 tk->timescale = cio_read(cio, 4); /* Timescale */
2129 tk->duration = cio_read(cio, 4); /* Duration */
2131 tk->language = cio_read(cio, 2); /* Language */
2133 cio_skip(cio,2); /* Predefined */
2135 if (cio_tell(cio) - box.init_pos != box.length) {
2136 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MDHD Box size\n");
2143 * Write the MDIA box
2148 void mj2_write_mdia(mj2_tk_t * tk, opj_cio_t *cio)
2152 box.init_pos = cio_tell(cio);
2154 cio_write(cio, MJ2_MDIA, 4); /* MDIA */
2156 mj2_write_mdhd(tk, cio);
2157 mj2_write_hdlr(tk, cio);
2158 mj2_write_minf(tk, cio);
2160 box.length = cio_tell(cio) - box.init_pos;
2161 cio_seek(cio, box.init_pos);
2162 cio_write(cio, box.length, 4); /* L */
2163 cio_seek(cio, box.init_pos + box.length);
2172 int mj2_read_mdia(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio)
2176 mj2_read_boxhdr(&box, cio);
2177 if (MJ2_MDIA != box.type) {
2178 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MDIA Marker\n");
2182 if (mj2_read_mdhd(tk, cio))
2184 if (mj2_read_hdlr(tk, cio))
2186 if (mj2_read_minf(tk, img, cio))
2189 if (cio_tell(cio) - box.init_pos != box.length) {
2190 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MDIA Box size\n");
2197 * Write the TKHD box
2202 void mj2_write_tkhd(mj2_tk_t * tk, opj_cio_t *cio)
2208 box.init_pos = cio_tell(cio);
2211 cio_write(cio, MJ2_TKHD, 4); /* TKHD */
2213 cio_write(cio, 3, 4); /* Version=0, flags=3 */
2215 time(<ime); /* Time since 1/1/70 */
2216 tk->modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */
2218 cio_write(cio, tk->creation_time, 4); /* Creation Time */
2220 cio_write(cio, tk->modification_time, 4); /* Modification Time */
2222 cio_write(cio, tk->track_ID, 4); /* Track ID */
2224 cio_write(cio, 0, 4); /* Reserved */
2228 for (i = 0; i < tk->num_samples; i++)
2229 tk->duration += tk->sample[i].sample_delta;
2231 cio_write(cio, tk->duration, 4); /* Duration */
2233 cio_write(cio, 0, 4); /* Reserved */
2234 cio_write(cio, 0, 4); /* Reserved */
2236 cio_write(cio, tk->layer, 2); /* Layer */
2238 cio_write(cio, 0, 2); /* Predefined */
2240 cio_write(cio, tk->volume, 2); /* Volume */
2242 cio_write(cio, 0, 2); /* Reserved */
2244 cio_write(cio, tk->trans_matrix[0], 4); /* Transformation matrix for track */
2245 cio_write(cio, tk->trans_matrix[1], 4);
2246 cio_write(cio, tk->trans_matrix[2], 4);
2247 cio_write(cio, tk->trans_matrix[3], 4);
2248 cio_write(cio, tk->trans_matrix[4], 4);
2249 cio_write(cio, tk->trans_matrix[5], 4);
2250 cio_write(cio, tk->trans_matrix[6], 4);
2251 cio_write(cio, tk->trans_matrix[7], 4);
2252 cio_write(cio, tk->trans_matrix[8], 4);
2254 cio_write(cio, tk->visual_w, 4); /* Video Visual Width */
2256 cio_write(cio, tk->visual_h, 4); /* Video Visual Height */
2258 box.length = cio_tell(cio) - box.init_pos;
2259 cio_seek(cio, box.init_pos);
2260 cio_write(cio, box.length, 4); /* L */
2261 cio_seek(cio, box.init_pos + box.length);
2270 int mj2_read_tkhd(mj2_tk_t * tk, opj_cio_t *cio)
2276 mj2_read_boxhdr(&box, cio);
2278 if (MJ2_TKHD != box.type) {
2279 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected TKHD Marker\n");
2283 if (0 != cio_read(cio, 1)) { /* Version = 0 */
2284 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in TKHD box\n");
2288 flag = cio_read(cio, 3);
2290 if (!(flag == 1 || flag == 2 || flag == 3 || flag == 4)) { /* Flags = 1,2,3 or 4 */
2291 opj_event_msg(cio->cinfo, EVT_ERROR,
2292 "Error with flag in TKHD box: Expected flag 1,2,3 or 4\n");
2296 tk->creation_time = cio_read(cio, 4); /* Creation Time */
2298 tk->modification_time = cio_read(cio, 4); /* Modification Time */
2300 tk->track_ID = cio_read(cio, 4); /* Track ID */
2302 cio_skip(cio,4); /* Reserved */
2304 tk->duration = cio_read(cio, 4); /* Duration */
2306 cio_skip(cio,8); /* Reserved */
2308 tk->layer = cio_read(cio, 2); /* Layer */
2310 cio_read(cio, 2); /* Predefined */
2312 tk->volume = cio_read(cio, 2); /* Volume */
2314 cio_skip(cio,2); /* Reserved */
2316 tk->trans_matrix[0] = cio_read(cio, 4); /* Transformation matrix for track */
2317 tk->trans_matrix[1] = cio_read(cio, 4);
2318 tk->trans_matrix[2] = cio_read(cio, 4);
2319 tk->trans_matrix[3] = cio_read(cio, 4);
2320 tk->trans_matrix[4] = cio_read(cio, 4);
2321 tk->trans_matrix[5] = cio_read(cio, 4);
2322 tk->trans_matrix[6] = cio_read(cio, 4);
2323 tk->trans_matrix[7] = cio_read(cio, 4);
2324 tk->trans_matrix[8] = cio_read(cio, 4);
2326 tk->visual_w = cio_read(cio, 4); /* Video Visual Width */
2328 tk->visual_h = cio_read(cio, 4); /* Video Visual Height */
2330 if (cio_tell(cio) - box.init_pos != box.length) {
2331 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with TKHD Box size\n");
2338 * Write the TRAK box
2343 void mj2_write_trak(mj2_tk_t * tk, opj_cio_t *cio)
2347 box.init_pos = cio_tell(cio);
2350 cio_write(cio, MJ2_TRAK, 4); /* TRAK */
2352 mj2_write_tkhd(tk, cio);
2353 mj2_write_mdia(tk, cio);
2355 box.length = cio_tell(cio) - box.init_pos;
2356 cio_seek(cio, box.init_pos);
2357 cio_write(cio, box.length, 4); /* L */
2358 cio_seek(cio, box.init_pos + box.length);
2367 int mj2_read_trak(mj2_tk_t * tk, opj_image_t * img, opj_cio_t *cio)
2371 mj2_read_boxhdr(&box, cio);
2372 if (MJ2_TRAK != box.type) {
2373 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected TRAK Marker\n");
2376 if (mj2_read_tkhd(tk, cio))
2378 if (mj2_read_mdia(tk, img, cio))
2380 if (cio_tell(cio) - box.init_pos != box.length) {
2381 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with TRAK Box\n");
2388 * Write the MVHD box
2393 void mj2_write_mvhd(opj_mj2_t * movie, opj_cio_t *cio)
2401 box.init_pos = cio_tell(cio);
2403 cio_write(cio, MJ2_MVHD, 4); /* MVHD */
2405 cio_write(cio, 0, 4); /* Version = 0, flags = 0 */
2407 time(<ime); /* Time since 1/1/70 */
2408 movie->modification_time = (unsigned int)ltime + 2082844800; /* Seoonds between 1/1/04 and 1/1/70 */
2410 cio_write(cio, movie->creation_time, 4); /* Creation Time */
2412 cio_write(cio, movie->modification_time, 4); /* Modification Time */
2414 cio_write(cio, movie->timescale, 4); /* Timescale */
2416 movie->duration = 0;
2418 for (i = 0; i < (movie->num_stk + movie->num_htk + movie->num_vtk); i++) {
2419 mj2_tk_t *tk = &movie->tk[i];
2421 for (j = 0; j < tk->num_samples; j++) {
2422 movie->duration += tk->sample[j].sample_delta;
2426 cio_write(cio, movie->duration, 4);
2428 cio_write(cio, movie->rate, 4); /* Rate to play presentation */
2430 cio_write(cio, movie->volume, 2); /* Volume */
2432 cio_write(cio, 0, 2); /* Reserved */
2433 cio_write(cio, 0, 4); /* Reserved */
2434 cio_write(cio, 0, 4); /* Reserved */
2436 cio_write(cio, movie->trans_matrix[0], 4); /* Transformation matrix for video */
2437 cio_write(cio, movie->trans_matrix[1], 4);
2438 cio_write(cio, movie->trans_matrix[2], 4);
2439 cio_write(cio, movie->trans_matrix[3], 4);
2440 cio_write(cio, movie->trans_matrix[4], 4);
2441 cio_write(cio, movie->trans_matrix[5], 4);
2442 cio_write(cio, movie->trans_matrix[6], 4);
2443 cio_write(cio, movie->trans_matrix[7], 4);
2444 cio_write(cio, movie->trans_matrix[8], 4);
2446 cio_write(cio, 0, 4); /* Pre-defined */
2447 cio_write(cio, 0, 4); /* Pre-defined */
2448 cio_write(cio, 0, 4); /* Pre-defined */
2449 cio_write(cio, 0, 4); /* Pre-defined */
2450 cio_write(cio, 0, 4); /* Pre-defined */
2451 cio_write(cio, 0, 4); /* Pre-defined */
2454 for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++) {
2455 if (max_tk_num < movie->tk[i].track_ID)
2456 max_tk_num = movie->tk[i].track_ID;
2459 movie->next_tk_id = max_tk_num + 1;
2461 cio_write(cio, movie->next_tk_id, 4); /* ID of Next track to be added */
2463 box.length = cio_tell(cio) - box.init_pos;
2464 cio_seek(cio, box.init_pos);
2465 cio_write(cio, box.length, 4); /* L */
2466 cio_seek(cio, box.init_pos + box.length);
2475 int mj2_read_mvhd(opj_mj2_t * movie, opj_cio_t *cio)
2479 mj2_read_boxhdr(&box, cio);
2480 if (MJ2_MVHD != box.type) {
2481 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MVHD Marker\n");
2486 if (0 != cio_read(cio, 4)) { /* Version = 0, flags = 0 */
2487 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Only Version 0 handled in MVHD box\n");
2490 movie->creation_time = cio_read(cio, 4); /* Creation Time */
2492 movie->modification_time = cio_read(cio, 4); /* Modification Time */
2494 movie->timescale = cio_read(cio, 4); /* Timescale */
2496 movie->duration = cio_read(cio, 4); /* Duration */
2498 movie->rate = cio_read(cio, 4); /* Rate to play presentation */
2500 movie->volume = cio_read(cio, 2); /* Volume */
2502 cio_skip(cio,10); /* Reserved */
2504 movie->trans_matrix[0] = cio_read(cio, 4); /* Transformation matrix for video */
2505 movie->trans_matrix[1] = cio_read(cio, 4);
2506 movie->trans_matrix[2] = cio_read(cio, 4);
2507 movie->trans_matrix[3] = cio_read(cio, 4);
2508 movie->trans_matrix[4] = cio_read(cio, 4);
2509 movie->trans_matrix[5] = cio_read(cio, 4);
2510 movie->trans_matrix[6] = cio_read(cio, 4);
2511 movie->trans_matrix[7] = cio_read(cio, 4);
2512 movie->trans_matrix[8] = cio_read(cio, 4);
2514 cio_skip(cio,24); /* Pre-defined */
2516 movie->next_tk_id = cio_read(cio, 4); /* ID of Next track to be added */
2518 if (cio_tell(cio) - box.init_pos != box.length) {
2519 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MVHD Box Size\n");
2527 * Write the MOOV box
2532 void mj2_write_moov(opj_mj2_t * movie, opj_cio_t *cio)
2537 box.init_pos = cio_tell(cio);
2539 cio_write(cio, MJ2_MOOV, 4); /* MOOV */
2541 mj2_write_mvhd(movie, cio);
2543 for (i = 0; i < (movie->num_stk + movie->num_htk + movie->num_vtk); i++) {
2544 mj2_write_trak(&movie->tk[i], cio);
2547 box.length = cio_tell(cio) - box.init_pos;
2548 cio_seek(cio, box.init_pos);
2549 cio_write(cio, box.length, 4); /* L */
2550 cio_seek(cio, box.init_pos + box.length);
2559 int mj2_read_moov(opj_mj2_t * movie, opj_image_t * img, opj_cio_t *cio)
2565 mj2_read_boxhdr(&box, cio);
2566 if (MJ2_MOOV != box.type) {
2567 opj_event_msg(cio->cinfo, EVT_ERROR, "Error: Expected MOOV Marker\n");
2571 if (mj2_read_mvhd(movie, cio))
2574 movie->tk = (mj2_tk_t*) opj_malloc((movie->next_tk_id - 1) * sizeof(mj2_tk_t));
2576 for (i = 0; cio_tell(cio) - box.init_pos < box.length; i++) {
2577 mj2_tk_t *tk = &movie->tk[i];
2578 tk->cinfo = movie->cinfo;
2579 mj2_read_boxhdr(&box2, cio);
2580 if (box2.type == MJ2_TRAK) {
2581 cio_seek(cio, box2.init_pos);
2582 if (mj2_read_trak(tk, img, cio))
2585 if (tk->track_type == 0) {
2587 } else if (tk->track_type == 1) {
2589 } else if (tk->track_type == 2) {
2592 } else if (box2.type == MJ2_MVEX) {
2593 cio_seek(cio, box2.init_pos);
2594 cio_skip(cio,box2.length);
2597 opj_event_msg(cio->cinfo, EVT_ERROR, "Error with MOOV Box: Expected TRAK or MVEX box\n");
2604 int mj2_read_struct(FILE *file, opj_mj2_t *movie) {
2607 unsigned char * src;
2612 /* open a byte stream for reading */
2613 src = (unsigned char*) opj_malloc(300 * sizeof(unsigned char));
2615 /* Assuming that jp and ftyp markers size do
2616 not exceed 300 bytes */
2617 fread(src,300,1, file);
2619 cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 300);
2621 if (mj2_read_jp(cio))
2623 if (mj2_read_ftyp(movie, cio))
2626 fsresult = fseek(file,cio_tell(cio),SEEK_SET);
2628 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read data after FTYP box\n" );
2632 foffset = cio_tell(cio);
2636 fread(src,30,1,file);
2637 cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 300);
2638 mj2_read_boxhdr(&box, cio);
2640 while(box.type != MJ2_MOOV) {
2645 fsresult = fseek(file,foffset+box.length,SEEK_SET);
2647 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MDAT box\n" );
2650 foffset += box.length;
2654 fsresult = fseek(file,foffset+box.length,SEEK_SET);
2656 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MOOF box\n" );
2659 foffset += box.length;
2662 fsresult = fseek(file,foffset+box.length,SEEK_SET);
2664 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read FREE box\n" );
2667 foffset += box.length;
2670 fsresult = fseek(file,foffset+box.length,SEEK_SET);
2672 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read SKIP box\n" );
2675 foffset += box.length;
2678 opj_event_msg(cio->cinfo, EVT_ERROR, "Unknown box in MJ2 stream\n");
2679 fsresult = fseek(file,foffset+box.length,SEEK_SET);
2681 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read end of unknown box\n");
2684 foffset += box.length;
2687 fsresult = fread(src,8,1,file);
2688 if (fsresult != 1) {
2689 opj_event_msg(cio->cinfo, EVT_ERROR, "MOOV box not found in file\n");
2692 cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, 8);
2693 mj2_read_boxhdr(&box, cio);
2696 fseek(file,foffset,SEEK_SET);
2697 src = (unsigned char*)opj_realloc(src,box.length);
2698 fsresult = fread(src,box.length,1,file);
2699 if (fsresult != 1) {
2700 opj_event_msg(cio->cinfo, EVT_ERROR, "End of file reached while trying to read MOOV box\n");
2704 cio = opj_cio_open((opj_common_ptr)movie->cinfo, src, box.length);
2706 if (mj2_read_moov(movie, &img, cio))
2713 /* ----------------------------------------------------------------------- */
2714 /* MJ2 decoder interface */
2715 /* ----------------------------------------------------------------------- */
2717 opj_dinfo_t* mj2_create_decompress() {
2719 opj_dinfo_t *dinfo = (opj_dinfo_t*) opj_calloc(1, sizeof(opj_dinfo_t));
2720 if(!dinfo) return NULL;
2722 dinfo->is_decompressor = OPJ_TRUE;
2724 mj2 = (opj_mj2_t*) opj_calloc(1, sizeof(opj_mj2_t));
2725 dinfo->mj2_handle = mj2;
2727 mj2->cinfo = (opj_common_ptr)dinfo;
2729 mj2->j2k = j2k_create_decompress((opj_common_ptr)dinfo);
2730 dinfo->j2k_handle = mj2->j2k;
2735 void mj2_setup_decoder(opj_mj2_t *movie, mj2_dparameters_t *mj2_parameters) {
2740 /* setup the J2K decoder parameters */
2741 j2k_setup_decoder((opj_j2k_t*)movie->cinfo->j2k_handle,
2742 &mj2_parameters->j2k_parameters);
2746 void mj2_destroy_decompress(opj_mj2_t *movie) {
2751 if (movie->cinfo->j2k_handle)
2752 j2k_destroy_compress(movie->j2k);
2754 if (movie->num_cl != 0)
2755 opj_free(movie->cl);
2757 for (i = 0; i < movie->num_vtk + movie->num_stk + movie->num_htk; i++) {
2759 if (tk->name_size != 0)
2761 if (tk->track_type == 0) {// Video track
2762 if (tk->jp2_struct.comps != 0)
2763 opj_free(tk->jp2_struct.comps);
2764 if (tk->jp2_struct.cl != 0)
2765 opj_free(tk->jp2_struct.cl);
2766 if (tk->num_jp2x != 0)
2767 opj_free(tk->jp2xdata);
2770 if (tk->num_url != 0)
2772 if (tk->num_urn != 0)
2774 if (tk->num_br != 0)
2776 if (tk->num_tts != 0)
2778 if (tk->num_chunks != 0)
2779 opj_free(tk->chunk);
2780 if (tk->num_samplestochunk != 0)
2781 opj_free(tk->sampletochunk);
2782 if (tk->num_samples != 0)
2783 opj_free(tk->sample);
2786 opj_free(movie->tk);
2791 /* ----------------------------------------------------------------------- */
2792 /* MJ2 encoder interface */
2793 /* ----------------------------------------------------------------------- */
2796 opj_cinfo_t* mj2_create_compress() {
2798 opj_cinfo_t *cinfo = (opj_cinfo_t*) opj_calloc(1, sizeof(opj_cinfo_t));
2799 if(!cinfo) return NULL;
2801 mj2 = (opj_mj2_t*) opj_calloc(1, sizeof(opj_mj2_t));
2802 cinfo->mj2_handle = mj2;
2804 mj2->cinfo = (opj_common_ptr)cinfo;
2807 mj2->j2k = j2k_create_compress(mj2->cinfo);
2808 cinfo->j2k_handle = mj2->j2k;
2813 void mj2_setup_encoder(opj_mj2_t *movie, mj2_cparameters_t *parameters) {
2814 if(movie && parameters) {
2815 opj_jp2_t *jp2_struct;
2817 movie->num_htk = 0; // No hint tracks
2818 movie->num_stk = 0; // No sound tracks
2819 movie->num_vtk = 1; // One video track
2821 movie->brand = MJ2_MJ2; // One brand: MJ2
2822 movie->num_cl = 2; // Two compatible brands: MJ2 and MJ2S
2823 movie->cl = (unsigned int*) opj_malloc(movie->num_cl * sizeof(unsigned int));
2824 movie->cl[0] = MJ2_MJ2;
2825 movie->cl[1] = MJ2_MJ2S;
2826 movie->minversion = 0; // Minimum version: 0
2828 movie->tk = (mj2_tk_t*) opj_malloc(sizeof(mj2_tk_t)); //Memory allocation for the video track
2829 movie->tk[0].track_ID = 1; // Track ID = 1
2830 movie->tk[0].track_type = 0; // Video track
2831 movie->tk[0].Dim[0] = parameters->Dim[0];
2832 movie->tk[0].Dim[1] = parameters->Dim[1];
2833 movie->tk[0].w = parameters->w;
2834 movie->tk[0].h = parameters->h;
2835 movie->tk[0].CbCr_subsampling_dx = parameters->CbCr_subsampling_dx;
2836 movie->tk[0].CbCr_subsampling_dy = parameters->CbCr_subsampling_dy;
2837 movie->tk[0].sample_rate = parameters->frame_rate;
2838 movie->tk[0].name_size = 0;
2839 movie->tk[0].chunk = (mj2_chunk_t*) opj_malloc(sizeof(mj2_chunk_t));
2840 movie->tk[0].sample = (mj2_sample_t*) opj_malloc(sizeof(mj2_sample_t));
2841 movie->tk[0].depth = parameters->prec;
2843 jp2_struct = &movie->tk[0].jp2_struct;
2844 jp2_struct->numcomps = parameters->numcomps; // NC
2845 jp2_struct->comps = (opj_jp2_comps_t*) opj_malloc(jp2_struct->numcomps * sizeof(opj_jp2_comps_t));
2846 jp2_struct->precedence = 0; /* PRECEDENCE*/
2847 jp2_struct->approx = 0; /* APPROX*/
2848 jp2_struct->brand = JP2_JP2; /* BR */
2849 jp2_struct->minversion = 0; /* MinV */
2850 jp2_struct->numcl = 1;
2851 jp2_struct->cl = (unsigned int*) opj_malloc(jp2_struct->numcl * sizeof(unsigned int));
2852 jp2_struct->cl[0] = JP2_JP2; /* CL0 : JP2 */
2853 jp2_struct->C = 7; /* C : Always 7*/
2854 jp2_struct->UnkC = 0; /* UnkC, colorspace specified in colr box*/
2855 jp2_struct->IPR = 0; /* IPR, no intellectual property*/
2856 jp2_struct->w = parameters->w;
2857 jp2_struct->h = parameters->h;
2858 jp2_struct->bpc = 7;
2859 jp2_struct->meth = parameters->meth;
2860 jp2_struct->enumcs = parameters->enumcs;
2864 void mj2_destroy_compress(opj_mj2_t *movie) {
2869 if (movie->cinfo->j2k_handle) {
2870 j2k_destroy_compress(movie->j2k);
2873 if (movie->num_cl != 0)
2874 opj_free(movie->cl);
2876 for (i = 0; i < movie->num_vtk + movie->num_stk + movie->num_htk; i++) {
2878 if (tk->name_size != 0)
2880 if (tk->track_type == 0) {// Video track
2881 if (tk->jp2_struct.comps != 0)
2882 opj_free(tk->jp2_struct.comps);
2883 if (tk->jp2_struct.cl != 0)
2884 opj_free(tk->jp2_struct.cl);
2885 if (tk->num_jp2x != 0)
2886 opj_free(tk->jp2xdata);
2889 if (tk->num_url != 0)
2891 if (tk->num_urn != 0)
2893 if (tk->num_br != 0)
2895 if (tk->num_tts != 0)
2897 if (tk->num_chunks != 0)
2898 opj_free(tk->chunk);
2899 if (tk->num_samplestochunk != 0)
2900 opj_free(tk->sampletochunk);
2901 if (tk->num_samples != 0)
2902 opj_free(tk->sample);
2905 opj_free(movie->tk);