Drop _t from typedef names for POSIX compatibility.
[libav.git] / libavformat / mov.c
CommitLineData
6cea494e 1/*
7fbde343 2 * MOV demuxer
19720f15 3 * Copyright (c) 2001 Fabrice Bellard.
6cea494e 4 *
b78e7197
DB
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
6cea494e 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
6cea494e 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
6cea494e 16 *
19720f15 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6cea494e 20 */
d957696f
MN
21
22#include <limits.h>
115329f1 23
bfc2a19d 24//#define DEBUG
4e5ef14f 25
6cea494e 26#include "avformat.h"
9d9f4119 27#include "riff.h"
e40ee6a2 28#include "isom.h"
b60c0454 29#include "dv.h"
245976da
DB
30#include "libavcodec/mpeg4audio.h"
31#include "libavcodec/mpegaudiodata.h"
6cea494e 32
0147f198
FR
33#ifdef CONFIG_ZLIB
34#include <zlib.h>
35#endif
36
6cea494e
ZK
37/*
38 * First version by Francois Revol revol@free.fr
115329f1 39 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 40 *
6cea494e 41 * Features and limitations:
5ca1d879 42 * - reads most of the QT files I have (at least the structure),
6cea494e 43 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 44 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 45 *
6cea494e
ZK
46 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
47 * when coding this :) (it's a writer anyway)
5ca1d879 48 *
6cea494e
ZK
49 * Reference documents:
50 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
51 * Apple:
baf25c9d 52 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 53 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
54 * QuickTime is a trademark of Apple (AFAIK :))
55 */
56
b595afaa
MM
57#include "qtpalette.h"
58
baf25c9d 59
cd7352d5
MN
60#undef NDEBUG
61#include <assert.h>
62
6cea494e
ZK
63/* the QuickTime file format is quite convoluted...
64 * it has lots of index tables, each indexing something in another one...
65 * Here we just use what is needed to read the chunks
66 */
67
e23848a4 68typedef struct {
1c02d96f
BC
69 int first;
70 int count;
71 int id;
e23848a4 72} MOV_stsc_t;
6cea494e 73
5cd62665 74typedef struct {
5ca1d879 75 uint32_t type;
221e21b7
BC
76 char *path;
77} MOV_dref_t;
78
79typedef struct {
80 uint32_t type;
5ca1d879
ZK
81 int64_t offset;
82 int64_t size; /* total size (excluding the size and type fields) */
83} MOV_atom_t;
84
b6a17df4
ZK
85struct MOVParseTableEntry;
86
61aedb0f
BC
87typedef struct {
88 unsigned track_id;
89 uint64_t base_data_offset;
90 uint64_t moof_offset;
91 unsigned stsd_id;
92 unsigned duration;
93 unsigned size;
94 unsigned flags;
95} MOVFragment;
96
97typedef struct {
98 unsigned track_id;
99 unsigned stsd_id;
100 unsigned duration;
101 unsigned size;
102 unsigned flags;
103} MOVTrackExt;
104
6cea494e 105typedef struct MOVStreamContext {
221e21b7 106 ByteIOContext *pb;
6cea494e 107 int ffindex; /* the ffmpeg stream id */
1c02d96f 108 int next_chunk;
44d3fea5 109 unsigned int chunk_count;
0c1a9eda 110 int64_t *chunk_offsets;
44d3fea5 111 unsigned int stts_count;
e23848a4 112 MOV_stts_t *stts_data;
44d3fea5 113 unsigned int ctts_count;
e23848a4 114 MOV_stts_t *ctts_data;
44d3fea5
BC
115 unsigned int edit_count; /* number of 'edit' (elst atom) */
116 unsigned int sample_to_chunk_sz;
e23848a4 117 MOV_stsc_t *sample_to_chunk;
c4ac052b
MN
118 int sample_to_ctime_index;
119 int sample_to_ctime_sample;
44d3fea5
BC
120 unsigned int sample_size;
121 unsigned int sample_count;
1c02d96f 122 int *sample_sizes;
44d3fea5 123 unsigned int keyframe_count;
1c02d96f 124 int *keyframes;
5cd62665 125 int time_scale;
cd7352d5 126 int time_rate;
1c02d96f 127 int current_sample;
e14f79ed
BC
128 unsigned int bytes_per_frame;
129 unsigned int samples_per_frame;
b60c0454 130 int dv_audio_container;
978677a7 131 int pseudo_stream_id; ///< -1 means demux all ids
77c75437 132 int16_t audio_cid; ///< stsd audio compression id
221e21b7
BC
133 unsigned drefs_count;
134 MOV_dref_t *drefs;
135 int dref_id;
0c5f76f7 136 int wrong_dts; ///< dts are wrong due to negative ctts
6cea494e
ZK
137} MOVStreamContext;
138
139typedef struct MOVContext {
6cea494e 140 AVFormatContext *fc;
5cd62665 141 int time_scale;
7e815047 142 int64_t duration; /* duration of the longest track */
6cea494e
ZK
143 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
144 int found_mdat; /* we suppose we have enough data to read the file */
b595afaa 145 AVPaletteControl palette_control;
b60c0454
BC
146 DVDemuxContext *dv_demux;
147 AVFormatContext *dv_fctx;
152e9a43 148 int isom; /* 1 if file is ISO Media (mp4/3gp) */
61aedb0f
BC
149 MOVFragment fragment; ///< current fragment in moof atom
150 MOVTrackExt *trex_data;
151 unsigned trex_count;
51c15201 152 int itunes_metadata; ///< metadata are itunes style
6cea494e
ZK
153} MOVContext;
154
155
6cea494e
ZK
156/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
157
158/* those functions parse an atom */
159/* return code:
e3c4740f 160 0: continue to parse next atom
d9526386 161 <0: error occurred, exit
e3c4740f 162*/
6cea494e
ZK
163/* links atom IDs to parse functions */
164typedef struct MOVParseTableEntry {
0c1a9eda 165 uint32_t type;
03dc32f6 166 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
6cea494e
ZK
167} MOVParseTableEntry;
168
73d07c27
BC
169static const MOVParseTableEntry mov_default_parse_table[];
170
5ca1d879 171static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 172{
b6a17df4 173 int64_t total_size = 0;
5ca1d879 174 MOV_atom_t a;
6cea494e
ZK
175 int i;
176 int err = 0;
5ca1d879 177
5ca1d879 178 a.offset = atom.offset;
6cea494e 179
9ed83b0a 180 if (atom.size < 0)
fa22ca22 181 atom.size = INT64_MAX;
5ca1d879 182 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
bb270c08 183 a.size = atom.size;
bcfe2ba0 184 a.type=0;
5ca1d879 185 if(atom.size >= 8) {
bb270c08 186 a.size = get_be32(pb);
5ca1d879 187 a.type = get_le32(pb);
6cea494e 188 }
bb270c08 189 total_size += 8;
5ca1d879 190 a.offset += 8;
29c90869
BC
191 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
192 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 193 if (a.size == 1) { /* 64 bit extended size */
bb270c08 194 a.size = get_be64(pb) - 8;
5ca1d879
ZK
195 a.offset += 8;
196 total_size += 8;
6cea494e 197 }
bb270c08
DB
198 if (a.size == 0) {
199 a.size = atom.size - total_size;
200 if (a.size <= 8)
5cd62665 201 break;
bb270c08 202 }
bb270c08 203 a.size -= 8;
8622613d 204 if(a.size < 0)
568e18b1 205 break;
3d2308b0 206 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 207
bcfe2ba0 208 for (i = 0; mov_default_parse_table[i].type != 0
73d07c27 209 && mov_default_parse_table[i].type != a.type; i++)
11979c46
BC
210 /* empty */;
211
73d07c27 212 if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
5ca1d879 213 url_fskip(pb, a.size);
bb270c08 214 } else {
bc5c918e 215 int64_t start_pos = url_ftell(pb);
5c72cad8 216 int64_t left;
03dc32f6 217 err = mov_default_parse_table[i].parse(c, pb, a);
db3ee6cc 218 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
687f35f3 219 break;
5c72cad8
BC
220 left = a.size - url_ftell(pb) + start_pos;
221 if (left > 0) /* skip garbage at atom end */
222 url_fskip(pb, left);
bb270c08 223 }
6cea494e 224
bb270c08 225 a.offset += a.size;
5ca1d879 226 total_size += a.size;
6cea494e
ZK
227 }
228
9ce84dd8 229 if (!err && total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 230 url_fskip(pb, atom.size - total_size);
5cd62665 231
6cea494e
ZK
232 return err;
233}
234
221e21b7
BC
235static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
236{
237 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
238 MOVStreamContext *sc = st->priv_data;
239 int entries, i, j;
240
241 get_be32(pb); // version + flags
242 entries = get_be32(pb);
243 if (entries >= UINT_MAX / sizeof(*sc->drefs))
244 return -1;
245 sc->drefs_count = entries;
246 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
247
248 for (i = 0; i < sc->drefs_count; i++) {
249 MOV_dref_t *dref = &sc->drefs[i];
250 uint32_t size = get_be32(pb);
bc5c918e 251 int64_t next = url_ftell(pb) + size - 4;
221e21b7
BC
252
253 dref->type = get_le32(pb);
254 get_be32(pb); // version + flags
255 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
256
257 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
258 /* macintosh alias record */
259 uint16_t volume_len, len;
260 char volume[28];
261 int16_t type;
262
263 url_fskip(pb, 10);
264
265 volume_len = get_byte(pb);
266 volume_len = FFMIN(volume_len, 27);
267 get_buffer(pb, volume, 27);
268 volume[volume_len] = 0;
269 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
270
271 url_fskip(pb, 112);
272
273 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
274 type = get_be16(pb);
275 len = get_be16(pb);
276 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
277 if (len&1)
278 len += 1;
279 if (type == 2) { // absolute path
dbb37657 280 av_free(dref->path);
221e21b7 281 dref->path = av_mallocz(len+1);
2f4568e5
BC
282 if (!dref->path)
283 return AVERROR(ENOMEM);
221e21b7 284 get_buffer(pb, dref->path, len);
dbb7cbf2 285 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
286 len -= volume_len;
287 memmove(dref->path, dref->path+volume_len, len);
288 dref->path[len] = 0;
289 }
290 for (j = 0; j < len; j++)
291 if (dref->path[j] == ':')
292 dref->path[j] = '/';
293 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
294 } else
295 url_fskip(pb, len);
296 }
297 }
298 url_fseek(pb, next, SEEK_SET);
299 }
300 return 0;
301}
302
5ca1d879 303static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 304{
5ca1d879 305 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
0c1a9eda 306 uint32_t type;
0c1a9eda 307 uint32_t ctype;
b6a17df4 308
6cea494e 309 get_byte(pb); /* version */
23f08617 310 get_be24(pb); /* flags */
6cea494e
ZK
311
312 /* component type */
313 ctype = get_le32(pb);
314 type = get_le32(pb); /* component subtype */
315
29c90869
BC
316 dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
317 ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
318 dprintf(c->fc, "stype= %c%c%c%c\n",
319 *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
152e9a43
BC
320 if(!ctype)
321 c->isom = 1;
37ffe34b 322 if (type == MKTAG('v','i','d','e'))
73920f07 323 st->codec->codec_type = CODEC_TYPE_VIDEO;
1c126b4f 324 else if(type == MKTAG('s','o','u','n'))
73920f07 325 st->codec->codec_type = CODEC_TYPE_AUDIO;
1c126b4f 326 else if(type == MKTAG('m','1','a',' '))
95a07973 327 st->codec->codec_id = CODEC_ID_MP2;
1c126b4f 328 else if(type == MKTAG('s','u','b','p')) {
8cb97693 329 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
8cb97693 330 }
6cea494e
ZK
331 get_be32(pb); /* component manufacture */
332 get_be32(pb); /* component flags */
333 get_be32(pb); /* component flags mask */
334
5ca1d879 335 if(atom.size <= 24)
6cea494e 336 return 0; /* nothing left to read */
5cd62665 337
3c13647a 338 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
339 return 0;
340}
341
9e40addd 342static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 343{
5cd62665 344 int len = 0;
5ca1d879
ZK
345 int count = 4;
346 while (count--) {
5cd62665 347 int c = get_byte(pb);
bb270c08
DB
348 len = (len << 7) | (c & 0x7f);
349 if (!(c & 0x80))
350 break;
0e7eed09
FB
351 }
352 return len;
353}
354
9e40addd 355static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
356{
357 int len;
358 *tag = get_byte(pb);
9e40addd 359 len = mp4_read_descr_len(pb);
318c5e05 360 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
361 return len;
362}
363
0b07ac42
BC
364#define MP4ESDescrTag 0x03
365#define MP4DecConfigDescrTag 0x04
366#define MP4DecSpecificDescrTag 0x05
367
1dec3994
BC
368static const AVCodecTag mp4_audio_types[] = {
369 { CODEC_ID_MP3ON4, 29 }, /* old mp3on4 draft */
370 { CODEC_ID_MP3ON4, 32 }, /* layer 1 */
371 { CODEC_ID_MP3ON4, 33 }, /* layer 2 */
372 { CODEC_ID_MP3ON4, 34 }, /* layer 3 */
373 { CODEC_ID_NONE, 0 },
374};
375
5ca1d879 376static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
5cd62665 377{
5cd62665 378 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 379 int tag, len;
b6a17df4 380
5cd62665 381 get_be32(pb); /* version + flags */
9e40addd 382 len = mp4_read_descr(c, pb, &tag);
5cd62665 383 if (tag == MP4ESDescrTag) {
bb270c08
DB
384 get_be16(pb); /* ID */
385 get_byte(pb); /* priority */
5cd62665 386 } else
bb270c08 387 get_be16(pb); /* ID */
5cd62665 388
9e40addd 389 len = mp4_read_descr(c, pb, &tag);
5cd62665 390 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
391 int object_type_id = get_byte(pb);
392 get_byte(pb); /* stream type */
393 get_be24(pb); /* buffer size db */
394 get_be32(pb); /* max bitrate */
395 get_be32(pb); /* avg bitrate */
396
397 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
398 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 399 len = mp4_read_descr(c, pb, &tag);
bb270c08 400 if (tag == MP4DecSpecificDescrTag) {
318c5e05 401 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
402 if((uint64_t)len > (1<<30))
403 return -1;
9a630c25 404 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
405 if (!st->codec->extradata)
406 return AVERROR(ENOMEM);
17871a02
BC
407 get_buffer(pb, st->codec->extradata, len);
408 st->codec->extradata_size = len;
1dec3994
BC
409 if (st->codec->codec_id == CODEC_ID_AAC) {
410 MPEG4AudioConfig cfg;
411 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
412 st->codec->extradata_size);
391872e4 413 if (cfg.chan_config > 7)
45a97d30
BC
414 return -1;
415 st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
416 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
417 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
418 else
419 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
420 dprintf(c->fc, "mp4a config channels %d obj %d ext obj %d "
421 "sample rate %d ext sample rate %d\n", st->codec->channels,
422 cfg.object_type, cfg.ext_object_type,
423 cfg.sample_rate, cfg.ext_sample_rate);
1dec3994
BC
424 if (!(st->codec->codec_id = codec_get_id(mp4_audio_types,
425 cfg.object_type)))
426 st->codec->codec_id = CODEC_ID_AAC;
17871a02 427 }
bb270c08 428 }
5cd62665 429 }
5cd62665
ZK
430 return 0;
431}
432
5ca1d879
ZK
433/* this atom contains actual media data */
434static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 435{
5ca1d879
ZK
436 if(atom.size == 0) /* wrong one (MP4) */
437 return 0;
438 c->found_mdat=1;
5ca1d879
ZK
439 return 0; /* now go for moov */
440}
441
4ea28253
BC
442static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
443{
444 uint32_t type = get_le32(pb);
445
152e9a43
BC
446 if (type != MKTAG('q','t',' ',' '))
447 c->isom = 1;
a512446e 448 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
449 get_be32(pb); /* minor version */
450 url_fskip(pb, atom.size - 8);
451 return 0;
452}
453
5ca1d879
ZK
454/* this atom should contain all header atoms */
455static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
456{
9cf0419b
PI
457 if (mov_read_default(c, pb, atom) < 0)
458 return -1;
5ca1d879
ZK
459 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
460 /* so we don't parse the whole file if over a network */
461 c->found_moov=1;
5ca1d879
ZK
462 return 0; /* now go for mdat */
463}
464
61aedb0f
BC
465static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
466{
467 c->fragment.moof_offset = url_ftell(pb) - 8;
468 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
469 return mov_read_default(c, pb, atom);
470}
5ca1d879
ZK
471
472static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
473{
f444b977 474 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 475 MOVStreamContext *sc = st->priv_data;
f444b977 476 int version = get_byte(pb);
b9a87c4d 477 int lang;
5ca1d879 478
b9a87c4d 479 if (version > 1)
7e627332 480 return -1; /* unsupported */
5ca1d879 481
23f08617 482 get_be24(pb); /* flags */
f444b977
BC
483 if (version == 1) {
484 get_be64(pb);
485 get_be64(pb);
486 } else {
487 get_be32(pb); /* creation time */
488 get_be32(pb); /* modification time */
489 }
5ca1d879 490
f444b977
BC
491 sc->time_scale = get_be32(pb);
492 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 493
b9a87c4d 494 lang = get_be16(pb); /* language */
f444b977 495 ff_mov_lang_to_iso639(lang, st->language);
5ca1d879
ZK
496 get_be16(pb); /* quality */
497
498 return 0;
499}
500
501static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
502{
1175561e 503 int version = get_byte(pb); /* version */
23f08617 504 get_be24(pb); /* flags */
5ca1d879 505
1175561e
BC
506 if (version == 1) {
507 get_be64(pb);
508 get_be64(pb);
509 } else {
510 get_be32(pb); /* creation time */
511 get_be32(pb); /* modification time */
512 }
5ca1d879 513 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
514
515 dprintf(c->fc, "time scale = %i\n", c->time_scale);
516
1175561e 517 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
518 get_be32(pb); /* preferred scale */
519
520 get_be16(pb); /* preferred volume */
521
522 url_fskip(pb, 10); /* reserved */
523
524 url_fskip(pb, 36); /* display matrix */
525
526 get_be32(pb); /* preview time */
527 get_be32(pb); /* preview duration */
528 get_be32(pb); /* poster time */
529 get_be32(pb); /* selection time */
530 get_be32(pb); /* selection duration */
531 get_be32(pb); /* current time */
532 get_be32(pb); /* next track ID */
533
534 return 0;
535}
536
9ed83b0a
ZK
537static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
538{
539 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
540
568e18b1
MN
541 if((uint64_t)atom.size > (1<<30))
542 return -1;
115329f1 543
9ed83b0a
ZK
544 // currently SVQ3 decoder expect full STSD header - so let's fake it
545 // this should be fixed and just SMI header should be passed
01f4895c 546 av_free(st->codec->extradata);
b014dd76
BC
547 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
548 if (!st->codec->extradata)
549 return AVERROR(ENOMEM);
17871a02
BC
550 st->codec->extradata_size = 0x5a + atom.size;
551 memcpy(st->codec->extradata, "SVQ3", 4); // fake
552 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
553 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
554 return 0;
555}
5ca1d879 556
de23f234
BC
557static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
558{
559 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
560 int little_endian = get_be16(pb);
561
562 if (little_endian) {
563 switch (st->codec->codec_id) {
564 case CODEC_ID_PCM_S24BE:
565 st->codec->codec_id = CODEC_ID_PCM_S24LE;
566 break;
567 case CODEC_ID_PCM_S32BE:
568 st->codec->codec_id = CODEC_ID_PCM_S32LE;
569 break;
a1ef2c4b
PR
570 case CODEC_ID_PCM_F32BE:
571 st->codec->codec_id = CODEC_ID_PCM_F32LE;
572 break;
573 case CODEC_ID_PCM_F64BE:
574 st->codec->codec_id = CODEC_ID_PCM_F64LE;
575 break;
de23f234
BC
576 default:
577 break;
578 }
579 }
580 return 0;
581}
582
014a5102
BC
583/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
584static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
de23f234
BC
585{
586 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
68bc33fa
BC
587 uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
588 uint8_t *buf;
589 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 590 return -1;
68bc33fa
BC
591 buf= av_realloc(st->codec->extradata, size);
592 if(!buf)
593 return -1;
594 st->codec->extradata= buf;
595 buf+= st->codec->extradata_size;
596 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
597 AV_WB32( buf , atom.size + 8);
598 AV_WL32( buf + 4, atom.type);
599 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
600 return 0;
601}
602
d9b1c197
RT
603static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
604{
605 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
606
607 if((uint64_t)atom.size > (1<<30))
608 return -1;
115329f1 609
3840147e
MN
610 if (st->codec->codec_id == CODEC_ID_QDM2) {
611 // pass all frma atom to codec, needed at least for QDM2
612 av_free(st->codec->extradata);
b014dd76
BC
613 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
614 if (!st->codec->extradata)
615 return AVERROR(ENOMEM);
3840147e 616 st->codec->extradata_size = atom.size;
b014dd76 617 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 618 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
619 if (mov_read_default(c, pb, atom) < 0)
620 return -1;
5c72cad8 621 } else
bb270c08 622 url_fskip(pb, atom.size);
d9b1c197
RT
623 return 0;
624}
625
bde24601
BC
626/**
627 * This function reads atom content and puts data in extradata without tag
628 * nor size unlike mov_read_extradata.
629 */
630static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
169eb021
MM
631{
632 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
633
568e18b1
MN
634 if((uint64_t)atom.size > (1<<30))
635 return -1;
636
01f4895c 637 av_free(st->codec->extradata);
b014dd76
BC
638 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
639 if (!st->codec->extradata)
640 return AVERROR(ENOMEM);
01f4895c 641 st->codec->extradata_size = atom.size;
b014dd76 642 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
643 return 0;
644}
645
5ca1d879
ZK
646static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
647{
648 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 649 MOVStreamContext *sc = st->priv_data;
568e18b1 650 unsigned int i, entries;
5ca1d879 651
5ca1d879 652 get_byte(pb); /* version */
23f08617 653 get_be24(pb); /* flags */
5ca1d879
ZK
654
655 entries = get_be32(pb);
115329f1 656
568e18b1
MN
657 if(entries >= UINT_MAX/sizeof(int64_t))
658 return -1;
115329f1 659
5ca1d879 660 sc->chunk_count = entries;
9a630c25 661 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879
ZK
662 if (!sc->chunk_offsets)
663 return -1;
37ffe34b
BC
664 if (atom.type == MKTAG('s','t','c','o'))
665 for(i=0; i<entries; i++)
5ca1d879 666 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
667 else if (atom.type == MKTAG('c','o','6','4'))
668 for(i=0; i<entries; i++)
5ca1d879 669 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 670 else
5ca1d879 671 return -1;
115329f1 672
5ca1d879
ZK
673 return 0;
674}
675
2288834f
BC
676/**
677 * Compute codec id for 'lpcm' tag.
678 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
679 */
fb65d2ca 680static enum CodecID mov_get_lpcm_codec_id(int bps, int flags)
2288834f
BC
681{
682 if (flags & 1) { // floating point
683 if (flags & 2) { // big endian
684 if (bps == 32) return CODEC_ID_PCM_F32BE;
7e4b3fb8 685 else if (bps == 64) return CODEC_ID_PCM_F64BE;
2288834f 686 } else {
7e4b3fb8
BC
687 if (bps == 32) return CODEC_ID_PCM_F32LE;
688 else if (bps == 64) return CODEC_ID_PCM_F64LE;
2288834f
BC
689 }
690 } else {
691 if (flags & 2) {
692 if (bps == 8)
693 // signed integer
694 if (flags & 4) return CODEC_ID_PCM_S8;
695 else return CODEC_ID_PCM_U8;
696 else if (bps == 16) return CODEC_ID_PCM_S16BE;
697 else if (bps == 24) return CODEC_ID_PCM_S24BE;
698 else if (bps == 32) return CODEC_ID_PCM_S32BE;
699 } else {
700 if (bps == 8)
701 if (flags & 4) return CODEC_ID_PCM_S8;
702 else return CODEC_ID_PCM_U8;
021b8ae3 703 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
704 else if (bps == 24) return CODEC_ID_PCM_S24LE;
705 else if (bps == 32) return CODEC_ID_PCM_S32LE;
706 }
707 }
fb65d2ca 708 return CODEC_ID_NONE;
2288834f
BC
709}
710
5ca1d879
ZK
711static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
712{
713 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 714 MOVStreamContext *sc = st->priv_data;
baf9fb32 715 int j, entries, pseudo_stream_id;
b595afaa 716
6cea494e 717 get_byte(pb); /* version */
23f08617 718 get_be24(pb); /* flags */
6cea494e 719
6cea494e
ZK
720 entries = get_be32(pb);
721
117a9190
BC
722 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
723 //Parsing Sample description table
b6a17df4 724 enum CodecID id;
221e21b7 725 int dref_id;
de23f234 726 MOV_atom_t a = { 0, 0, 0 };
bc5c918e 727 int64_t start_pos = url_ftell(pb);
bb270c08 728 int size = get_be32(pb); /* size */
baf9fb32 729 uint32_t format = get_le32(pb); /* data format */
5cd62665 730
6cea494e
ZK
731 get_be32(pb); /* reserved */
732 get_be16(pb); /* reserved */
221e21b7 733 dref_id = get_be16(pb);
0e7eed09 734
744a9c75 735 if (st->codec->codec_tag &&
978677a7 736 st->codec->codec_tag != format &&
744a9c75 737 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 738 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 739 ){
7ce68923
DB
740 /* Multiple fourcc, we skip JPEG. This is not correct, we should
741 * export it as a separate AVStream but this needs a few changes
742 * in the MOV demuxer, patch welcome. */
285a3da9 743 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
744 url_fskip(pb, size - (url_ftell(pb) - start_pos));
745 continue;
746 }
978677a7 747 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 748 sc->dref_id= dref_id;
e7cc4b52 749
bb270c08 750 st->codec->codec_tag = format;
1e5f5e3b 751 id = codec_get_id(codec_movaudio_tags, format);
1c126b4f 752 if (id<=0 && (format&0xFFFF) == 'm'+('s'<<8))
bca7db35
MN
753 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
754
48855b26 755 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 756 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26 757 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 758 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1e5f5e3b 759 id = codec_get_id(codec_movvideo_tags, format);
99487f42 760 if (id <= 0)
de23f234 761 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
762 if (id > 0)
763 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
764 else if(st->codec->codec_type == CODEC_TYPE_DATA){
765 id = codec_get_id(ff_codec_movsubtitle_tags, format);
766 if(id > 0)
767 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
768 }
99487f42
BC
769 }
770
29c90869
BC
771 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
772 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
773 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 774
99487f42 775 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
baf9fb32
BC
776 uint8_t codec_name[32];
777 unsigned int color_depth;
778 int color_greyscale;
baf9fb32 779
01f4895c 780 st->codec->codec_id = id;
6cea494e
ZK
781 get_be16(pb); /* version */
782 get_be16(pb); /* revision level */
783 get_be32(pb); /* vendor */
784 get_be32(pb); /* temporal quality */
94472c1d 785 get_be32(pb); /* spatial quality */
3cb4ee51
BC
786
787 st->codec->width = get_be16(pb); /* width */
788 st->codec->height = get_be16(pb); /* height */
789
6cea494e
ZK
790 get_be32(pb); /* horiz resolution */
791 get_be32(pb); /* vert resolution */
792 get_be32(pb); /* data size, always 0 */
43612ffe 793 get_be16(pb); /* frames per samples */
f8c18cd7 794
eb034aca 795 get_buffer(pb, codec_name, 32); /* codec name, pascal string */
576f1445
BC
796 if (codec_name[0] <= 31) {
797 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
798 st->codec->codec_name[codec_name[0]] = 0;
799 }
5cd62665 800
dd1c8f3e 801 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
01f4895c 802 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f 803 dprintf(c->fc, "depth %d, ctab id %d\n",
dd1c8f3e 804 st->codec->bits_per_coded_sample, st->codec->color_table_id);
b595afaa 805 /* figure out the palette situation */
dd1c8f3e
LA
806 color_depth = st->codec->bits_per_coded_sample & 0x1F;
807 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
b595afaa
MM
808
809 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 810 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 811 (color_depth == 8)) {
47e1d7ef
BC
812 /* for palette traversal */
813 unsigned int color_start, color_count, color_end;
814 unsigned char r, g, b;
815
b595afaa 816 if (color_greyscale) {
47e1d7ef 817 int color_index, color_dec;
b595afaa 818 /* compute the greyscale palette */
dd1c8f3e 819 st->codec->bits_per_coded_sample = color_depth;
b595afaa
MM
820 color_count = 1 << color_depth;
821 color_index = 255;
822 color_dec = 256 / (color_count - 1);
823 for (j = 0; j < color_count; j++) {
824 r = g = b = color_index;
825 c->palette_control.palette[j] =
826 (r << 16) | (g << 8) | (b);
827 color_index -= color_dec;
828 if (color_index < 0)
829 color_index = 0;
830 }
71f36235 831 } else if (st->codec->color_table_id) {
47e1d7ef 832 const uint8_t *color_table;
b595afaa
MM
833 /* if flag bit 3 is set, use the default palette */
834 color_count = 1 << color_depth;
835 if (color_depth == 2)
a90466f7 836 color_table = ff_qt_default_palette_4;
b595afaa 837 else if (color_depth == 4)
a90466f7 838 color_table = ff_qt_default_palette_16;
b595afaa 839 else
a90466f7 840 color_table = ff_qt_default_palette_256;
b595afaa
MM
841
842 for (j = 0; j < color_count; j++) {
843 r = color_table[j * 4 + 0];
844 g = color_table[j * 4 + 1];
845 b = color_table[j * 4 + 2];
846 c->palette_control.palette[j] =
847 (r << 16) | (g << 8) | (b);
848 }
b595afaa 849 } else {
b595afaa
MM
850 /* load the palette from the file */
851 color_start = get_be32(pb);
852 color_count = get_be16(pb);
853 color_end = get_be16(pb);
8b35bd80
MM
854 if ((color_start <= 255) &&
855 (color_end <= 255)) {
9de2919c
MM
856 for (j = color_start; j <= color_end; j++) {
857 /* each R, G, or B component is 16 bits;
858 * only use the top 8 bits; skip alpha bytes
859 * up front */
860 get_byte(pb);
861 get_byte(pb);
862 r = get_byte(pb);
863 get_byte(pb);
864 g = get_byte(pb);
865 get_byte(pb);
866 b = get_byte(pb);
867 get_byte(pb);
868 c->palette_control.palette[j] =
869 (r << 16) | (g << 8) | (b);
8b35bd80 870 }
b595afaa
MM
871 }
872 }
01f4895c
MN
873 st->codec->palctrl = &c->palette_control;
874 st->codec->palctrl->palette_changed = 1;
b595afaa 875 } else
01f4895c 876 st->codec->palctrl = NULL;
de23f234 877 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
aaef2bb3 878 int bits_per_sample, flags;
de23f234 879 uint16_t version = get_be16(pb);
b595afaa 880
99487f42 881 st->codec->codec_id = id;
de23f234
BC
882 get_be16(pb); /* revision level */
883 get_be32(pb); /* vendor */
6d6d7970 884
de23f234 885 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 886 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
dd1c8f3e 887 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
de23f234 888
77c75437 889 sc->audio_cid = get_be16(pb);
de23f234
BC
890 get_be16(pb); /* packet size = 0 */
891
892 st->codec->sample_rate = ((get_be32(pb) >> 16));
893
5ef3ad59
BC
894 //Read QT version 1 fields. In version 0 these do not exist.
895 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
896 if(!c->isom) {
897 if(version==1) {
898 sc->samples_per_frame = get_be32(pb);
899 get_be32(pb); /* bytes per packet */
900 sc->bytes_per_frame = get_be32(pb);
901 get_be32(pb); /* bytes per sample */
902 } else if(version==2) {
903 get_be32(pb); /* sizeof struct only */
904 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
905 st->codec->channels = get_be32(pb);
906 get_be32(pb); /* always 0x7F000000 */
dd1c8f3e 907 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
aaef2bb3 908 flags = get_be32(pb); /* lcpm format specific flag */
9184d53a
BC
909 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
910 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f 911 if (format == MKTAG('l','p','c','m'))
dd1c8f3e 912 st->codec->codec_id = mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
5ef3ad59
BC
913 }
914 }
915
de23f234 916 switch (st->codec->codec_id) {
b72708f8
BC
917 case CODEC_ID_PCM_S8:
918 case CODEC_ID_PCM_U8:
dd1c8f3e 919 if (st->codec->bits_per_coded_sample == 16)
b72708f8
BC
920 st->codec->codec_id = CODEC_ID_PCM_S16BE;
921 break;
0dd39bfe 922 case CODEC_ID_PCM_S16LE:
de23f234 923 case CODEC_ID_PCM_S16BE:
dd1c8f3e 924 if (st->codec->bits_per_coded_sample == 8)
de23f234 925 st->codec->codec_id = CODEC_ID_PCM_S8;
dd1c8f3e 926 else if (st->codec->bits_per_coded_sample == 24)
6b477e1b
BC
927 st->codec->codec_id =
928 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
929 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 930 break;
53152765
BC
931 /* set values for old format before stsd version 1 appeared */
932 case CODEC_ID_MACE3:
933 sc->samples_per_frame = 6;
934 sc->bytes_per_frame = 2*st->codec->channels;
935 break;
936 case CODEC_ID_MACE6:
937 sc->samples_per_frame = 6;
938 sc->bytes_per_frame = 1*st->codec->channels;
939 break;
940 case CODEC_ID_ADPCM_IMA_QT:
941 sc->samples_per_frame = 64;
942 sc->bytes_per_frame = 34*st->codec->channels;
943 break;
cc326d2b
BC
944 case CODEC_ID_GSM:
945 sc->samples_per_frame = 160;
946 sc->bytes_per_frame = 33;
947 break;
de23f234
BC
948 default:
949 break;
6d6d7970 950 }
14342fd5 951
9770089d
BC
952 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
953 if (bits_per_sample) {
dd1c8f3e 954 st->codec->bits_per_coded_sample = bits_per_sample;
9770089d
BC
955 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
956 }
cc8d87b7
MN
957 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
958 st->codec->codec_id= id;
de23f234
BC
959 } else {
960 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
961 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 962 }
de23f234
BC
963 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
964 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
965 if (a.size > 8) {
966 if (mov_read_default(c, pb, a) < 0)
967 return -1;
968 } else if (a.size > 0)
de23f234 969 url_fskip(pb, a.size);
6cea494e 970 }
115329f1 971
60f5c96e 972 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 973 st->codec->sample_rate= sc->time_scale;
e31bd3e3 974
d00f8e17 975 /* special codec parameters handling */
e31bd3e3 976 switch (st->codec->codec_id) {
989ac5a6 977#ifdef CONFIG_DV_DEMUXER
b60c0454
BC
978 case CODEC_ID_DVAUDIO:
979 c->dv_fctx = av_alloc_format_context();
980 c->dv_demux = dv_init_demux(c->dv_fctx);
981 if (!c->dv_demux) {
982 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
983 return -1;
984 }
985 sc->dv_audio_container = 1;
986 st->codec->codec_id = CODEC_ID_PCM_S16LE;
987 break;
989ac5a6 988#endif
b95319a2 989 /* no ifdef since parameters are always those */
3f78a3a9 990 case CODEC_ID_QCELP:
73b458e3 991 st->codec->frame_size= 160;
061f407e 992 st->codec->channels= 1; /* really needed */
73b458e3 993 break;
b95319a2 994 case CODEC_ID_AMR_NB:
aeb62788 995 case CODEC_ID_AMR_WB:
cfb5a2ab 996 st->codec->frame_size= sc->samples_per_frame;
b95319a2 997 st->codec->channels= 1; /* really needed */
f06188d5 998 /* force sample rate for amr, stsd in 3gp does not store sample rate */
5b9ce252 999 if (st->codec->codec_id == CODEC_ID_AMR_NB)
f06188d5 1000 st->codec->sample_rate = 8000;
5b9ce252
BC
1001 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
1002 st->codec->sample_rate = 16000;
b95319a2 1003 break;
a41104f8 1004 case CODEC_ID_MP2:
c59f24e6 1005 case CODEC_ID_MP3:
95a07973 1006 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 1007 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 1008 break;
5610f20e 1009 case CODEC_ID_GSM:
74e9b9ae
BC
1010 case CODEC_ID_ADPCM_MS:
1011 case CODEC_ID_ADPCM_IMA_WAV:
1012 st->codec->block_align = sc->bytes_per_frame;
1013 break;
be511925
BC
1014 case CODEC_ID_ALAC:
1015 if (st->codec->extradata_size == 36)
1016 st->codec->frame_size = AV_RB32((st->codec->extradata+12));
1017 break;
e31bd3e3
BC
1018 default:
1019 break;
1020 }
5cd62665 1021
6cea494e
ZK
1022 return 0;
1023}
1024
5ca1d879 1025static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 1026{
5ca1d879 1027 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1028 MOVStreamContext *sc = st->priv_data;
568e18b1 1029 unsigned int i, entries;
b6a17df4 1030
6cea494e 1031 get_byte(pb); /* version */
23f08617 1032 get_be24(pb); /* flags */
6cea494e
ZK
1033
1034 entries = get_be32(pb);
115329f1 1035
e23848a4 1036 if(entries >= UINT_MAX / sizeof(MOV_stsc_t))
568e18b1 1037 return -1;
115329f1 1038
f8c18cd7
BC
1039 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1040
6cea494e 1041 sc->sample_to_chunk_sz = entries;
e23848a4 1042 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t));
b6a17df4
ZK
1043 if (!sc->sample_to_chunk)
1044 return -1;
6cea494e
ZK
1045 for(i=0; i<entries; i++) {
1046 sc->sample_to_chunk[i].first = get_be32(pb);
1047 sc->sample_to_chunk[i].count = get_be32(pb);
1048 sc->sample_to_chunk[i].id = get_be32(pb);
6cea494e
ZK
1049 }
1050 return 0;
1051}
1052
247d56f5
BB
1053static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1054{
1055 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1056 MOVStreamContext *sc = st->priv_data;
568e18b1 1057 unsigned int i, entries;
247d56f5 1058
247d56f5 1059 get_byte(pb); /* version */
23f08617 1060 get_be24(pb); /* flags */
247d56f5
BB
1061
1062 entries = get_be32(pb);
115329f1 1063
1c02d96f 1064 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1065 return -1;
115329f1 1066
247d56f5 1067 sc->keyframe_count = entries;
f8c18cd7
BC
1068
1069 dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count);
1070
1c02d96f 1071 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5
BB
1072 if (!sc->keyframes)
1073 return -1;
1074 for(i=0; i<entries; i++) {
1075 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1076 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1077 }
1078 return 0;
1079}
1080
5ca1d879 1081static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 1082{
5ca1d879 1083 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1084 MOVStreamContext *sc = st->priv_data;
b72708f8 1085 unsigned int i, entries, sample_size;
b6a17df4 1086
6cea494e 1087 get_byte(pb); /* version */
23f08617 1088 get_be24(pb); /* flags */
5cd62665 1089
b72708f8
BC
1090 sample_size = get_be32(pb);
1091 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1092 sc->sample_size = sample_size;
6cea494e 1093 entries = get_be32(pb);
1c02d96f 1094 if(entries >= UINT_MAX / sizeof(int))
568e18b1
MN
1095 return -1;
1096
6cea494e 1097 sc->sample_count = entries;
b72708f8
BC
1098 if (sample_size)
1099 return 0;
1100
f8c18cd7
BC
1101 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1102
1c02d96f 1103 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4
ZK
1104 if (!sc->sample_sizes)
1105 return -1;
eb61405a 1106 for(i=0; i<entries; i++)
6cea494e 1107 sc->sample_sizes[i] = get_be32(pb);
6cea494e
ZK
1108 return 0;
1109}
1110
5ca1d879 1111static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1112{
5ca1d879 1113 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1114 MOVStreamContext *sc = st->priv_data;
568e18b1 1115 unsigned int i, entries;
d957696f
MN
1116 int64_t duration=0;
1117 int64_t total_sample_count=0;
b6a17df4 1118
0147f198 1119 get_byte(pb); /* version */
23f08617 1120 get_be24(pb); /* flags */
0147f198 1121 entries = get_be32(pb);
e23848a4 1122 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
568e18b1 1123 return -1;
891f64b3 1124
cd7352d5 1125 sc->stts_count = entries;
e23848a4 1126 sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1127 if (!sc->stts_data)
1128 return -1;
f8c18cd7 1129 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
cd7352d5
MN
1130
1131 sc->time_rate=0;
1132
0147f198 1133 for(i=0; i<entries; i++) {
cd461d48
MN
1134 int sample_duration;
1135 int sample_count;
0147f198 1136
891f64b3 1137 sample_count=get_be32(pb);
0147f198 1138 sample_duration = get_be32(pb);
cd7352d5
MN
1139 sc->stts_data[i].count= sample_count;
1140 sc->stts_data[i].duration= sample_duration;
1141
1142 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
961e0ccd 1143
318c5e05 1144 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1145
7e815047 1146 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1147 total_sample_count+=sample_count;
891f64b3 1148 }
1149
961e0ccd
MN
1150 st->nb_frames= total_sample_count;
1151 if(duration)
1152 st->duration= duration;
0147f198
FR
1153 return 0;
1154}
1155
c4ac052b
MN
1156static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1157{
70a61ed4 1158 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1159 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1160 unsigned int i, entries;
1161
c4ac052b 1162 get_byte(pb); /* version */
23f08617 1163 get_be24(pb); /* flags */
c4ac052b 1164 entries = get_be32(pb);
e23848a4 1165 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
c4ac052b
MN
1166 return -1;
1167
70a61ed4 1168 sc->ctts_count = entries;
e23848a4 1169 sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1170 if (!sc->ctts_data)
1171 return -1;
318c5e05 1172 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
4e5ef14f 1173
c4ac052b 1174 for(i=0; i<entries; i++) {
70a61ed4
MN
1175 int count =get_be32(pb);
1176 int duration =get_be32(pb);
1177
b0519015 1178 if (duration < 0) {
0c5f76f7
BC
1179 sc->wrong_dts = 1;
1180 st->codec->has_b_frames = 1;
b0519015 1181 }
70a61ed4
MN
1182 sc->ctts_data[i].count = count;
1183 sc->ctts_data[i].duration= duration;
1184
0c5f76f7 1185 sc->time_rate= ff_gcd(sc->time_rate, FFABS(duration));
c4ac052b
MN
1186 }
1187 return 0;
1188}
1189
1e77810d
BC
1190static void mov_build_index(MOVContext *mov, AVStream *st)
1191{
1192 MOVStreamContext *sc = st->priv_data;
bc5c918e 1193 int64_t current_offset;
1e77810d
BC
1194 int64_t current_dts = 0;
1195 unsigned int stts_index = 0;
1196 unsigned int stsc_index = 0;
1197 unsigned int stss_index = 0;
1198 unsigned int i, j;
1199
d3bc61ac
BC
1200 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1201 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1202 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1203 unsigned int current_sample = 0;
1204 unsigned int stts_sample = 0;
1205 unsigned int keyframe, sample_size;
1206 unsigned int distance = 0;
1207 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1208
1209 st->nb_frames = sc->sample_count;
1210 for (i = 0; i < sc->chunk_count; i++) {
1211 current_offset = sc->chunk_offsets[i];
1212 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1213 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1214 stsc_index++;
1215 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1216 if (current_sample >= sc->sample_count) {
1217 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1218 goto out;
1219 }
1220 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1221 if (keyframe) {
1222 distance = 0;
1223 if (stss_index + 1 < sc->keyframe_count)
1224 stss_index++;
1225 }
1226 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1227 if(sc->pseudo_stream_id == -1 ||
585dac65 1228 sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id) {
1e77810d
BC
1229 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1230 keyframe ? AVINDEX_KEYFRAME : 0);
585dac65
BC
1231 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1232 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1233 current_offset, current_dts, sample_size, distance, keyframe);
1234 }
1e77810d
BC
1235 current_offset += sample_size;
1236 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1237 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1238 distance++;
1239 stts_sample++;
1240 current_sample++;
1241 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1242 stts_sample = 0;
1243 stts_index++;
1244 }
1245 }
1246 }
1247 } else { /* read whole chunk */
1248 unsigned int chunk_samples, chunk_size, chunk_duration;
1249 unsigned int frames = 1;
1250 for (i = 0; i < sc->chunk_count; i++) {
1251 current_offset = sc->chunk_offsets[i];
1252 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1253 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1254 stsc_index++;
1255 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1256 /* get chunk size, beware of alaw/ulaw/mace */
1257 if (sc->samples_per_frame > 0 &&
1258 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
3b8c000d 1259 if (sc->samples_per_frame < 160)
1e77810d
BC
1260 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1261 else {
1262 chunk_size = sc->bytes_per_frame;
1263 frames = chunk_samples / sc->samples_per_frame;
1264 chunk_samples = sc->samples_per_frame;
1265 }
48a55290 1266 } else
1e77810d 1267 chunk_size = chunk_samples * sc->sample_size;
1e77810d
BC
1268 for (j = 0; j < frames; j++) {
1269 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1270 /* get chunk duration */
1271 chunk_duration = 0;
1272 while (chunk_samples > 0) {
1273 if (chunk_samples < sc->stts_data[stts_index].count) {
1274 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1275 sc->stts_data[stts_index].count -= chunk_samples;
1276 break;
1277 } else {
1278 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1279 chunk_samples -= sc->stts_data[stts_index].count;
1280 if (stts_index + 1 < sc->stts_count)
1281 stts_index++;
1282 }
1283 }
1284 current_offset += sc->bytes_per_frame;
117a9190
BC
1285 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1286 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1287 chunk_size, chunk_duration);
1e77810d
BC
1288 assert(chunk_duration % sc->time_rate == 0);
1289 current_dts += chunk_duration / sc->time_rate;
1290 }
1291 }
1292 }
1293 out:
1294 /* adjust sample count to avindex entries */
1295 sc->sample_count = st->nb_index_entries;
1296}
bd991df2 1297
5ca1d879
ZK
1298static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1299{
1300 AVStream *st;
1301 MOVStreamContext *sc;
bd991df2 1302 int ret;
5ca1d879 1303
5ca1d879 1304 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1305 if (!st) return AVERROR(ENOMEM);
9a630c25 1306 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1307 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1308
5ca1d879 1309 st->priv_data = sc;
05edc1a7 1310 st->codec->codec_type = CODEC_TYPE_DATA;
25c4950e 1311 st->start_time = 0; /* XXX: check */
5ca1d879 1312
bd991df2
BC
1313 if ((ret = mov_read_default(c, pb, atom)) < 0)
1314 return ret;
1315
1316 /* sanity checks */
5e788d58
BC
1317 if(sc->chunk_count && (!sc->stts_count || !sc->sample_to_chunk_sz ||
1318 (!sc->sample_size && !sc->sample_count))){
6282c5f4
BC
1319 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1320 st->index);
bd991df2
BC
1321 sc->sample_count = 0; //ignore track
1322 return 0;
1323 }
1324 if(!sc->time_rate)
1325 sc->time_rate=1;
1326 if(!sc->time_scale)
1327 sc->time_scale= c->time_scale;
1328 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1329
3f78a3a9
BC
1330 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
1331 !st->codec->frame_size && sc->stts_count == 1)
bd991df2
BC
1332 st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale);
1333
1334 if(st->duration != AV_NOPTS_VALUE){
1335 assert(st->duration % sc->time_rate == 0);
1336 st->duration /= sc->time_rate;
1337 }
1338 sc->ffindex = st->index;
1339 mov_build_index(c, st);
1340
1341 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1342 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
9e81a0ce
BC
1343 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1344 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
bd991df2
BC
1345 } else
1346 sc->pb = c->fc->pb;
1347
1348 switch (st->codec->codec_id) {
1349#ifdef CONFIG_H261_DECODER
1350 case CODEC_ID_H261:
1351#endif
1352#ifdef CONFIG_H263_DECODER
1353 case CODEC_ID_H263:
1354#endif
1355#ifdef CONFIG_MPEG4_DECODER
1356 case CODEC_ID_MPEG4:
1357#endif
1358 st->codec->width= 0; /* let decoder init width/height */
1359 st->codec->height= 0;
1360 break;
bd991df2 1361 }
f9900374
BC
1362
1363 /* Do not need those anymore. */
1364 av_freep(&sc->chunk_offsets);
1365 av_freep(&sc->sample_to_chunk);
1366 av_freep(&sc->sample_sizes);
1367 av_freep(&sc->keyframes);
1368 av_freep(&sc->stts_data);
1369
bd991df2 1370 return 0;
5ca1d879
ZK
1371}
1372
51c15201
BC
1373static int mov_read_ilst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1374{
1375 int ret;
1376 c->itunes_metadata = 1;
1377 ret = mov_read_default(c, pb, atom);
1378 c->itunes_metadata = 0;
1379 return ret;
1380}
1381
1382static int mov_read_meta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1383{
12e416c8
BC
1384 url_fskip(pb, 4); // version + flags
1385 atom.size -= 4;
51c15201
BC
1386 return mov_read_default(c, pb, atom);
1387}
1388
1389static int mov_read_trkn(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1390{
1391 get_be32(pb); // type
1392 get_be32(pb); // unknown
1393 c->fc->track = get_be32(pb);
1394 dprintf(c->fc, "%.4s %d\n", (char*)&atom.type, c->fc->track);
1395 return 0;
1396}
1397
86b0affd 1398static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
d2ace376 1399{
86b0affd
BC
1400 char *str = NULL;
1401 int size;
51c15201
BC
1402 uint16_t str_size;
1403
1404 if (c->itunes_metadata) {
1405 int data_size = get_be32(pb);
1406 int tag = get_le32(pb);
1407 if (tag == MKTAG('d','a','t','a')) {
1408 get_be32(pb); // type
1409 get_be32(pb); // unknown
1410 str_size = data_size - 16;
1411 } else return 0;
1412 } else {
1413 str_size = get_be16(pb); // string length
1414 get_be16(pb); // language
1415 }
86b0affd
BC
1416 switch (atom.type) {
1417 case MKTAG(0xa9,'n','a','m'):
1418 str = c->fc->title; size = sizeof(c->fc->title); break;
51c15201 1419 case MKTAG(0xa9,'A','R','T'):
86b0affd
BC
1420 case MKTAG(0xa9,'w','r','t'):
1421 str = c->fc->author; size = sizeof(c->fc->author); break;
1422 case MKTAG(0xa9,'c','p','y'):
1423 str = c->fc->copyright; size = sizeof(c->fc->copyright); break;
51c15201 1424 case MKTAG(0xa9,'c','m','t'):
86b0affd
BC
1425 case MKTAG(0xa9,'i','n','f'):
1426 str = c->fc->comment; size = sizeof(c->fc->comment); break;
51c15201
BC
1427 case MKTAG(0xa9,'a','l','b'):
1428 str = c->fc->album; size = sizeof(c->fc->album); break;
86b0affd
BC
1429 }
1430 if (!str)
1431 return 0;
d2ace376 1432 get_buffer(pb, str, FFMIN(size, str_size));
51c15201 1433 dprintf(c->fc, "%.4s %s\n", (char*)&atom.type, str);
d2ace376
BF
1434 return 0;
1435}
1436
5ca1d879
ZK
1437static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1438{
ec072669
JS
1439 int i;
1440 int width;
1441 int height;
1442 int64_t disp_transform[2];
1443 int display_matrix[3][2];
f444b977
BC
1444 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1445 int version = get_byte(pb);
5ca1d879 1446
23f08617 1447 get_be24(pb); /* flags */
5ca1d879
ZK
1448 /*
1449 MOV_TRACK_ENABLED 0x0001
1450 MOV_TRACK_IN_MOVIE 0x0002
1451 MOV_TRACK_IN_PREVIEW 0x0004
1452 MOV_TRACK_IN_POSTER 0x0008
1453 */
1454
1175561e
BC
1455 if (version == 1) {
1456 get_be64(pb);
1457 get_be64(pb);
1458 } else {
1459 get_be32(pb); /* creation time */
1460 get_be32(pb); /* modification time */
1461 }
5ca1d879
ZK
1462 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1463 get_be32(pb); /* reserved */
25c4950e 1464 st->start_time = 0; /* check */
117a9190
BC
1465 /* highlevel (considering edits) duration in movie timebase */
1466 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1467 get_be32(pb); /* reserved */
1468 get_be32(pb); /* reserved */
1469
1470 get_be16(pb); /* layer */
1471 get_be16(pb); /* alternate group */
1472 get_be16(pb); /* volume */
1473 get_be16(pb); /* reserved */
1474
ec072669
JS
1475 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1476 // they're kept in fixed point format through all calculations
1477 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1478 for (i = 0; i < 3; i++) {
1479 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1480 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1481 get_be32(pb); // 2.30 fixed point (not used)
1482 }
5ca1d879 1483
ec072669
JS
1484 width = get_be32(pb); // 16.16 fixed point track width
1485 height = get_be32(pb); // 16.16 fixed point track height
1486
1487 //transform the display width/height according to the matrix
1488 // skip this if the display matrix is the default identity matrix
1489 // to keep the same scale, use [width height 1<<16]
1490 if (width && height &&
1491 (display_matrix[0][0] != 65536 || display_matrix[0][1] ||
1492 display_matrix[1][0] || display_matrix[1][1] != 65536 ||
1493 display_matrix[2][0] || display_matrix[2][1])) {
1494 for (i = 0; i < 2; i++)
1495 disp_transform[i] =
1496 (int64_t) width * display_matrix[0][i] +
1497 (int64_t) height * display_matrix[1][i] +
1498 ((int64_t) display_matrix[2][i] << 16);
1499
1500 //sample aspect ratio is new width/height divided by old width/height
59729451 1501 st->sample_aspect_ratio = av_d2q(
ec072669
JS
1502 ((double) disp_transform[0] * height) /
1503 ((double) disp_transform[1] * width), INT_MAX);
1504 }
5ca1d879
ZK
1505 return 0;
1506}
1507
61aedb0f
BC
1508static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1509{
1510 MOVFragment *frag = &c->fragment;
1511 MOVTrackExt *trex = NULL;
1512 int flags, track_id, i;
1513
1514 get_byte(pb); /* version */
1515 flags = get_be24(pb);
1516
1517 track_id = get_be32(pb);
1518 if (!track_id || track_id > c->fc->nb_streams)
1519 return -1;
1520 frag->track_id = track_id;
1521 for (i = 0; i < c->trex_count; i++)
1522 if (c->trex_data[i].track_id == frag->track_id) {
1523 trex = &c->trex_data[i];
1524 break;
1525 }
1526 if (!trex) {
1527 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1528 return -1;
1529 }
1530
1531 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1532 else frag->base_data_offset = frag->moof_offset;
1533 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1534 else frag->stsd_id = trex->stsd_id;
1535
1536 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1537 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1538 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1539 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1540 return 0;
1541}
1542
1543static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1544{
1545 MOVTrackExt *trex;
1546
1547 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1548 return -1;
1549 c->trex_data = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1550 if (!c->trex_data)
1551 return AVERROR(ENOMEM);
1552 trex = &c->trex_data[c->trex_count++];
1553 get_byte(pb); /* version */
1554 get_be24(pb); /* flags */
1555 trex->track_id = get_be32(pb);
1556 trex->stsd_id = get_be32(pb);
1557 trex->duration = get_be32(pb);
1558 trex->size = get_be32(pb);
1559 trex->flags = get_be32(pb);
1560 return 0;
1561}
1562
1563static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1564{
1565 MOVFragment *frag = &c->fragment;
44e43aab
BC
1566 AVStream *st;
1567 MOVStreamContext *sc;
61aedb0f
BC
1568 uint64_t offset;
1569 int64_t dts;
1570 int data_offset = 0;
1571 unsigned entries, first_sample_flags = frag->flags;
1572 int flags, distance, i;
1573
44e43aab
BC
1574 if (!frag->track_id || frag->track_id > c->fc->nb_streams)
1575 return -1;
1576 st = c->fc->streams[frag->track_id-1];
1577 sc = st->priv_data;
61aedb0f
BC
1578 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1579 return 0;
61aedb0f
BC
1580 get_byte(pb); /* version */
1581 flags = get_be24(pb);
1582 entries = get_be32(pb);
1583 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1584 if (flags & 0x001) data_offset = get_be32(pb);
1585 if (flags & 0x004) first_sample_flags = get_be32(pb);
1586 if (flags & 0x800) {
1587 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1588 return -1;
1589 sc->ctts_data = av_realloc(sc->ctts_data,
1590 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1591 if (!sc->ctts_data)
1592 return AVERROR(ENOMEM);
1593 }
1594 dts = st->duration;
1595 offset = frag->base_data_offset + data_offset;
1596 distance = 0;
1597 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1598 for (i = 0; i < entries; i++) {
1599 unsigned sample_size = frag->size;
1600 int sample_flags = i ? frag->flags : first_sample_flags;
1601 unsigned sample_duration = frag->duration;
1602 int keyframe;
1603
1604 if (flags & 0x100) sample_duration = get_be32(pb);
1605 if (flags & 0x200) sample_size = get_be32(pb);
1606 if (flags & 0x400) sample_flags = get_be32(pb);
1607 if (flags & 0x800) {
1608 sc->ctts_data[sc->ctts_count].count = 1;
1609 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1610 sc->ctts_count++;
1611 }
1612 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1613 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1614 distance = 0;
1615 av_add_index_entry(st, offset, dts, sample_size, distance,
1616 keyframe ? AVINDEX_KEYFRAME : 0);
1617 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1618 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1619 offset, dts, sample_size, distance, keyframe);
1620 distance++;
1621 assert(sample_duration % sc->time_rate == 0);
1622 dts += sample_duration / sc->time_rate;
1623 offset += sample_size;
1624 }
1625 frag->moof_offset = offset;
1626 sc->sample_count = st->nb_index_entries;
1627 st->duration = dts;
1628 return 0;
1629}
1630
5ca1d879
ZK
1631/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1632/* like the files created with Adobe Premiere 5.0, for samples see */
1633/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1634static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1635{
1636 int err;
5ca1d879 1637
5ca1d879
ZK
1638 if (atom.size < 8)
1639 return 0; /* continue */
1640 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1641 url_fskip(pb, atom.size - 4);
1642 return 0;
1643 }
1644 atom.type = get_le32(pb);
1645 atom.offset += 8;
1646 atom.size -= 8;
1c126b4f 1647 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
1648 url_fskip(pb, atom.size);
1649 return 0;
1650 }
1651 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1652 return err;
1653}
1654
5ca1d879 1655static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1656{
d966b2f0 1657#ifdef CONFIG_ZLIB
0147f198 1658 ByteIOContext ctx;
b6a17df4
ZK
1659 uint8_t *cmov_data;
1660 uint8_t *moov_data; /* uncompressed data */
0147f198 1661 long cmov_len, moov_len;
6f04eb1e 1662 int ret = -1;
b6a17df4 1663
0147f198 1664 get_be32(pb); /* dcom atom */
1c126b4f 1665 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 1666 return -1;
1c126b4f 1667 if (get_le32(pb) != MKTAG('z','l','i','b')) {
4e5ef14f 1668 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1669 return -1;
1670 }
1671 get_be32(pb); /* cmvd atom */
1c126b4f 1672 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
1673 return -1;
1674 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1675 cmov_len = atom.size - 6 * 4;
5cd62665 1676
9a630c25 1677 cmov_data = av_malloc(cmov_len);
0147f198
FR
1678 if (!cmov_data)
1679 return -1;
9a630c25 1680 moov_data = av_malloc(moov_len);
0147f198
FR
1681 if (!moov_data) {
1682 av_free(cmov_data);
1683 return -1;
1684 }
1685 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1686 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 1687 goto free_and_return;
942f3bb5 1688 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 1689 goto free_and_return;
1c126b4f 1690 atom.type = MKTAG('m','o','o','v');
5ca1d879
ZK
1691 atom.offset = 0;
1692 atom.size = moov_len;
9ed83b0a 1693#ifdef DEBUG
dbb4f00a 1694// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1695#endif
5ca1d879 1696 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 1697free_and_return:
0147f198
FR
1698 av_free(moov_data);
1699 av_free(cmov_data);
1700 return ret;
d966b2f0
BC
1701#else
1702 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1703 return -1;
0147f198 1704#endif
d966b2f0 1705}
0147f198 1706
baf25c9d
GC
1707/* edit list atom */
1708static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1709{
7c622eed 1710 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1711 int i, edit_count;
1712
1713 get_byte(pb); /* version */
23f08617 1714 get_be24(pb); /* flags */
7c622eed 1715 edit_count= sc->edit_count = get_be32(pb); /* entries */
e0977c80
BC
1716
1717 for(i=0; i<edit_count; i++){
d435e520 1718 int time;
e0977c80 1719 get_be32(pb); /* Track duration */
d435e520 1720 time = get_be32(pb); /* Media time */
e0977c80 1721 get_be32(pb); /* Media rate */
d435e520
BC
1722 if (time != 0)
1723 av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, "
1724 "a/v desync might occur, patch welcome\n");
e0977c80 1725 }
7c622eed 1726 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count);
e0977c80 1727 return 0;
baf25c9d
GC
1728}
1729
6cea494e 1730static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 1731{ MKTAG('a','v','s','s'), mov_read_extradata },
1c126b4f
BC
1732{ MKTAG('c','o','6','4'), mov_read_stco },
1733{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1734{ MKTAG('d','i','n','f'), mov_read_default },
1735{ MKTAG('d','r','e','f'), mov_read_dref },
1736{ MKTAG('e','d','t','s'), mov_read_default },
1737{ MKTAG('e','l','s','t'), mov_read_elst },
1738{ MKTAG('e','n','d','a'), mov_read_enda },
1739{ MKTAG('f','i','e','l'), mov_read_extradata },
1740{ MKTAG('f','t','y','p'), mov_read_ftyp },
1741{ MKTAG('g','l','b','l'), mov_read_glbl },
1742{ MKTAG('h','d','l','r'), mov_read_hdlr },
51c15201 1743{ MKTAG('i','l','s','t'), mov_read_ilst },
1c126b4f
BC
1744{ MKTAG('j','p','2','h'), mov_read_extradata },
1745{ MKTAG('m','d','a','t'), mov_read_mdat },
1746{ MKTAG('m','d','h','d'), mov_read_mdhd },
1747{ MKTAG('m','d','i','a'), mov_read_default },
51c15201 1748{ MKTAG('m','e','t','a'), mov_read_meta },
1c126b4f
BC
1749{ MKTAG('m','i','n','f'), mov_read_default },
1750{ MKTAG('m','o','o','f'), mov_read_moof },
1751{ MKTAG('m','o','o','v'), mov_read_moov },
1752{ MKTAG('m','v','e','x'), mov_read_default },
1753{ MKTAG('m','v','h','d'), mov_read_mvhd },
1754{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1755{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1756{ MKTAG('a','v','c','C'), mov_read_glbl },
1757{ MKTAG('s','t','b','l'), mov_read_default },
1758{ MKTAG('s','t','c','o'), mov_read_stco },
1759{ MKTAG('s','t','s','c'), mov_read_stsc },
1760{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1761{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1762{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1763{ MKTAG('s','t','t','s'), mov_read_stts },
1764{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1765{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1766{ MKTAG('t','r','a','k'), mov_read_trak },
1767{ MKTAG('t','r','a','f'), mov_read_default },
1768{ MKTAG('t','r','e','x'), mov_read_trex },
51c15201 1769{ MKTAG('t','r','k','n'), mov_read_trkn },
1c126b4f 1770{ MKTAG('t','r','u','n'), mov_read_trun },
86b0affd 1771{ MKTAG('u','d','t','a'), mov_read_default },
1c126b4f
BC
1772{ MKTAG('w','a','v','e'), mov_read_wave },
1773{ MKTAG('e','s','d','s'), mov_read_esds },
1774{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1775{ MKTAG('c','m','o','v'), mov_read_cmov },
86b0affd
BC
1776{ MKTAG(0xa9,'n','a','m'), mov_read_udta_string },
1777{ MKTAG(0xa9,'w','r','t'), mov_read_udta_string },
1778{ MKTAG(0xa9,'c','p','y'), mov_read_udta_string },
1779{ MKTAG(0xa9,'i','n','f'), mov_read_udta_string },
51c15201
BC
1780{ MKTAG(0xa9,'i','n','f'), mov_read_udta_string },
1781{ MKTAG(0xa9,'A','R','T'), mov_read_udta_string },
1782{ MKTAG(0xa9,'a','l','b'), mov_read_udta_string },
1783{ MKTAG(0xa9,'c','m','t'), mov_read_udta_string },
bcfe2ba0 1784{ 0, NULL }
6cea494e
ZK
1785};
1786
c9a65ca8
FB
1787static int mov_probe(AVProbeData *p)
1788{
0e7eed09
FB
1789 unsigned int offset;
1790 uint32_t tag;
2497479f 1791 int score = 0;
3ffe3793 1792
c9a65ca8 1793 /* check file header */
0e7eed09
FB
1794 offset = 0;
1795 for(;;) {
1796 /* ignore invalid offset */
1797 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1798 return score;
fead30d4 1799 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1800 switch(tag) {
2497479f 1801 /* check for obvious tags */
1c126b4f
BC
1802 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
1803 case MKTAG('m','o','o','v'):
1804 case MKTAG('m','d','a','t'):
1805 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
1806 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 1807 case MKTAG('f','t','y','p'):
3ffe3793 1808 return AVPROBE_SCORE_MAX;
2497479f 1809 /* those are more common words, so rate then a bit less */
1c126b4f
BC
1810 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
1811 case MKTAG('w','i','d','e'):
1812 case MKTAG('f','r','e','e'):
1813 case MKTAG('j','u','n','k'):
1814 case MKTAG('p','i','c','t'):
2497479f 1815 return AVPROBE_SCORE_MAX - 5;
5469b788 1816 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
1817 case MKTAG('s','k','i','p'):
1818 case MKTAG('u','u','i','d'):
1819 case MKTAG('p','r','f','l'):
fead30d4 1820 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1821 /* if we only find those cause probedata is too small at least rate them */
1822 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1823 break;
1824 default:
1825 /* unrecognized tag */
2497479f 1826 return score;
0e7eed09 1827 }
3ffe3793 1828 }
2497479f 1829 return score;
c9a65ca8
FB
1830}
1831
a266644f 1832static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1833{
e4141433 1834 MOVContext *mov = s->priv_data;
899681cd 1835 ByteIOContext *pb = s->pb;
f9900374 1836 int err;
5ca1d879 1837 MOV_atom_t atom = { 0, 0, 0 };
6cea494e 1838
6cea494e 1839 mov->fc = s;
117a9190
BC
1840 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1841 if(!url_is_streamed(pb))
bb270c08 1842 atom.size = url_fsize(pb);
6cea494e 1843 else
fa22ca22 1844 atom.size = INT64_MAX;
6cea494e 1845
6cea494e 1846 /* check MOV header */
612b5cbb
BC
1847 if ((err = mov_read_default(mov, pb, atom)) < 0) {
1848 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1849 return err;
1850 }
1851 if (!mov->found_moov) {
1852 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 1853 return -1;
6cea494e 1854 }
0265fe81 1855 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 1856
6cea494e
ZK
1857 return 0;
1858}
1859
a266644f 1860static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1861{
b72708f8
BC
1862 MOVContext *mov = s->priv_data;
1863 MOVStreamContext *sc = 0;
1864 AVIndexEntry *sample = 0;
86d8602f 1865 int64_t best_dts = INT64_MAX;
b72708f8 1866 int i;
433aeb62 1867 retry:
11f16b66 1868 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1869 AVStream *st = s->streams[i];
1870 MOVStreamContext *msc = st->priv_data;
221e21b7 1871 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < msc->sample_count) {
7c622eed 1872 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1873 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1874 AV_TIME_BASE, msc->time_scale);
1c02d96f 1875 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1876 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1877 (!url_is_streamed(s->pb) &&
221e21b7 1878 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1879 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1880 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1881 sample = current_sample;
1882 best_dts = dts;
1883 sc = msc;
86d8602f 1884 }
6cea494e 1885 }
6cea494e 1886 }
433aeb62
BC
1887 if (!sample) {
1888 mov->found_mdat = 0;
1889 if (!url_is_streamed(s->pb) ||
1890 mov_read_default(mov, s->pb, (MOV_atom_t){ 0, 0, INT64_MAX }) < 0 ||
1891 url_feof(s->pb))
1892 return -1;
1893 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1894 goto retry;
1895 }
b72708f8
BC
1896 /* must be done just before reading, to avoid infinite loop on sample */
1897 sc->current_sample++;
221e21b7 1898 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1899 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1900 sc->ffindex, sample->pos);
bb270c08 1901 return -1;
6cea494e 1902 }
221e21b7 1903 av_get_packet(sc->pb, pkt, sample->size);
312954f0 1904#ifdef CONFIG_DV_DEMUXER
56ea717b
BC
1905 if (mov->dv_demux && sc->dv_audio_container) {
1906 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1907 av_free(pkt->data);
300aa2b0
BC
1908 pkt->size = 0;
1909 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1910 return -1;
56ea717b 1911 }
312954f0 1912#endif
b72708f8
BC
1913 pkt->stream_index = sc->ffindex;
1914 pkt->dts = sample->timestamp;
1915 if (sc->ctts_data) {
1916 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1917 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1918 /* update ctts context */
1919 sc->sample_to_ctime_sample++;
29c90869
BC
1920 if (sc->sample_to_ctime_index < sc->ctts_count &&
1921 sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
b72708f8
BC
1922 sc->sample_to_ctime_index++;
1923 sc->sample_to_ctime_sample = 0;
b565ea09 1924 }
0c5f76f7
BC
1925 if (sc->wrong_dts)
1926 pkt->dts = AV_NOPTS_VALUE;
b72708f8 1927 } else {
e8430214
HG
1928 AVStream *st = s->streams[sc->ffindex];
1929 int64_t next_dts = (sc->current_sample < sc->sample_count) ?
1930 st->index_entries[sc->current_sample].timestamp : st->duration;
1931 pkt->duration = next_dts - pkt->dts;
b72708f8 1932 pkt->pts = pkt->dts;
b565ea09 1933 }
b72708f8
BC
1934 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1935 pkt->pos = sample->pos;
29c90869
BC
1936 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1937 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1938 return 0;
1939}
3ffe3793 1940
b72708f8
BC
1941static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1942{
1943 MOVStreamContext *sc = st->priv_data;
1944 int sample, time_sample;
1945 int i;
115329f1 1946
b72708f8 1947 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1948 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1949 if (sample < 0) /* not sure what to do */
1950 return -1;
1951 sc->current_sample = sample;
1c02d96f 1952 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1953 /* adjust ctts index */
1954 if (sc->ctts_data) {
1955 time_sample = 0;
1956 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1957 int next = time_sample + sc->ctts_data[i].count;
1958 if (next > sc->current_sample) {
b72708f8 1959 sc->sample_to_ctime_index = i;
54a5c719 1960 sc->sample_to_ctime_sample = sc->current_sample - time_sample;
b72708f8 1961 break;
115329f1 1962 }
54a5c719 1963 time_sample = next;
247d56f5 1964 }
247d56f5 1965 }
b72708f8 1966 return sample;
6cea494e
ZK
1967}
1968
961e0ccd 1969static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1970{
b72708f8
BC
1971 AVStream *st;
1972 int64_t seek_timestamp, timestamp;
1973 int sample;
1974 int i;
baf25c9d 1975
b72708f8 1976 if (stream_index >= s->nb_streams)
baf25c9d 1977 return -1;
baf25c9d 1978
b72708f8
BC
1979 st = s->streams[stream_index];
1980 sample = mov_seek_stream(st, sample_time, flags);
1981 if (sample < 0)
baf25c9d 1982 return -1;
baf25c9d 1983
b72708f8
BC
1984 /* adjust seek timestamp to found sample timestamp */
1985 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 1986
b72708f8
BC
1987 for (i = 0; i < s->nb_streams; i++) {
1988 st = s->streams[i];
1989 if (stream_index == i || st->discard == AVDISCARD_ALL)
1990 continue;
baf25c9d 1991
b72708f8
BC
1992 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1993 mov_seek_stream(st, timestamp, flags);
115329f1 1994 }
baf25c9d
GC
1995 return 0;
1996}
baf25c9d 1997
a266644f 1998static int mov_read_close(AVFormatContext *s)
6cea494e 1999{
221e21b7 2000 int i, j;
e4141433 2001 MOVContext *mov = s->priv_data;
11f16b66 2002 for(i=0; i<s->nb_streams; i++) {
7c622eed
BC
2003 MOVStreamContext *sc = s->streams[i]->priv_data;
2004 av_freep(&sc->ctts_data);
221e21b7
BC
2005 for (j=0; j<sc->drefs_count; j++)
2006 av_freep(&sc->drefs[j].path);
2007 av_freep(&sc->drefs);
2008 if (sc->pb && sc->pb != s->pb)
2009 url_fclose(sc->pb);
4440b118 2010 }
b60c0454
BC
2011 if(mov->dv_demux){
2012 for(i=0; i<mov->dv_fctx->nb_streams; i++){
2013 av_freep(&mov->dv_fctx->streams[i]->codec);
2014 av_freep(&mov->dv_fctx->streams[i]);
2015 }
2016 av_freep(&mov->dv_fctx);
2017 av_freep(&mov->dv_demux);
2018 }
61aedb0f 2019 av_freep(&mov->trex_data);
6cea494e
ZK
2020 return 0;
2021}
2022
ff70e601 2023AVInputFormat mov_demuxer = {
fc5188f3 2024 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 2025 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
2026 sizeof(MOVContext),
2027 mov_probe,
6cea494e
ZK
2028 mov_read_header,
2029 mov_read_packet,
2030 mov_read_close,
baf25c9d 2031 mov_read_seek,
6cea494e 2032};