more generic metadata handling
[libav.git] / libavformat / mov.c
CommitLineData
6cea494e 1/*
7fbde343 2 * MOV demuxer
406792e7 3 * Copyright (c) 2001 Fabrice Bellard
7c4502c8 4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6cea494e 5 *
b78e7197
DB
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
6cea494e 12 *
b78e7197 13 * FFmpeg is distributed in the hope that it will be useful,
6cea494e 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
6cea494e 17 *
19720f15 18 * You should have received a copy of the GNU Lesser General Public
b78e7197 19 * License along with FFmpeg; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6cea494e 21 */
d957696f
MN
22
23#include <limits.h>
115329f1 24
bfc2a19d 25//#define DEBUG
873358e5
BC
26//#define DEBUG_METADATA
27//#define MOV_EXPORT_ALL_METADATA
4e5ef14f 28
6a5d31ac 29#include "libavutil/intreadwrite.h"
49674dd0 30#include "libavutil/avstring.h"
6cea494e 31#include "avformat.h"
9d9f4119 32#include "riff.h"
e40ee6a2 33#include "isom.h"
245976da
DB
34#include "libavcodec/mpeg4audio.h"
35#include "libavcodec/mpegaudiodata.h"
6cea494e 36
b250f9c6 37#if CONFIG_ZLIB
0147f198
FR
38#include <zlib.h>
39#endif
40
6cea494e
ZK
41/*
42 * First version by Francois Revol revol@free.fr
115329f1 43 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 44 *
6cea494e 45 * Features and limitations:
5ca1d879 46 * - reads most of the QT files I have (at least the structure),
6cea494e 47 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 48 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 49 *
6cea494e
ZK
50 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
51 * when coding this :) (it's a writer anyway)
5ca1d879 52 *
6cea494e
ZK
53 * Reference documents:
54 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
55 * Apple:
baf25c9d 56 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 57 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
58 * QuickTime is a trademark of Apple (AFAIK :))
59 */
60
b595afaa
MM
61#include "qtpalette.h"
62
baf25c9d 63
cd7352d5
MN
64#undef NDEBUG
65#include <assert.h>
66
6cea494e
ZK
67/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
68
69/* those functions parse an atom */
70/* return code:
e3c4740f 71 0: continue to parse next atom
d9526386 72 <0: error occurred, exit
e3c4740f 73*/
6cea494e
ZK
74/* links atom IDs to parse functions */
75typedef struct MOVParseTableEntry {
0c1a9eda 76 uint32_t type;
c3e92a6c 77 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOVAtom atom);
6cea494e
ZK
78} MOVParseTableEntry;
79
73d07c27
BC
80static const MOVParseTableEntry mov_default_parse_table[];
81
873358e5
BC
82static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOVAtom atom);
83
c3e92a6c 84static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 85{
b6a17df4 86 int64_t total_size = 0;
c3e92a6c 87 MOVAtom a;
6cea494e
ZK
88 int i;
89 int err = 0;
5ca1d879 90
5ca1d879 91 a.offset = atom.offset;
6cea494e 92
9ed83b0a 93 if (atom.size < 0)
fa22ca22 94 atom.size = INT64_MAX;
5ca1d879 95 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
873358e5 96 int (*parse)(MOVContext*, ByteIOContext*, MOVAtom) = NULL;
bb270c08 97 a.size = atom.size;
bcfe2ba0 98 a.type=0;
5ca1d879 99 if(atom.size >= 8) {
bb270c08 100 a.size = get_be32(pb);
5ca1d879 101 a.type = get_le32(pb);
6cea494e 102 }
bb270c08 103 total_size += 8;
5ca1d879 104 a.offset += 8;
29c90869
BC
105 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
106 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 107 if (a.size == 1) { /* 64 bit extended size */
bb270c08 108 a.size = get_be64(pb) - 8;
5ca1d879
ZK
109 a.offset += 8;
110 total_size += 8;
6cea494e 111 }
bb270c08
DB
112 if (a.size == 0) {
113 a.size = atom.size - total_size;
114 if (a.size <= 8)
5cd62665 115 break;
bb270c08 116 }
bb270c08 117 a.size -= 8;
8622613d 118 if(a.size < 0)
568e18b1 119 break;
3d2308b0 120 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 121
873358e5
BC
122 for (i = 0; mov_default_parse_table[i].type; i++)
123 if (mov_default_parse_table[i].type == a.type) {
124 parse = mov_default_parse_table[i].parse;
125 break;
126 }
11979c46 127
873358e5
BC
128 // container is user data
129 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
130 atom.type == MKTAG('i','l','s','t')))
131 parse = mov_read_udta_string;
132
133 if (!parse) { /* skip leaf atoms data */
5ca1d879 134 url_fskip(pb, a.size);
bb270c08 135 } else {
bc5c918e 136 int64_t start_pos = url_ftell(pb);
5c72cad8 137 int64_t left;
873358e5 138 err = parse(c, pb, a);
db3ee6cc 139 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
687f35f3 140 break;
5c72cad8
BC
141 left = a.size - url_ftell(pb) + start_pos;
142 if (left > 0) /* skip garbage at atom end */
143 url_fskip(pb, left);
bb270c08 144 }
6cea494e 145
bb270c08 146 a.offset += a.size;
5ca1d879 147 total_size += a.size;
6cea494e
ZK
148 }
149
9ce84dd8 150 if (!err && total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 151 url_fskip(pb, atom.size - total_size);
5cd62665 152
6cea494e
ZK
153 return err;
154}
155
c3e92a6c 156static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
221e21b7
BC
157{
158 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
159 MOVStreamContext *sc = st->priv_data;
160 int entries, i, j;
161
162 get_be32(pb); // version + flags
163 entries = get_be32(pb);
164 if (entries >= UINT_MAX / sizeof(*sc->drefs))
165 return -1;
221e21b7 166 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
0d8f0abf
BC
167 if (!sc->drefs)
168 return AVERROR(ENOMEM);
169 sc->drefs_count = entries;
221e21b7
BC
170
171 for (i = 0; i < sc->drefs_count; i++) {
c3e92a6c 172 MOVDref *dref = &sc->drefs[i];
221e21b7 173 uint32_t size = get_be32(pb);
bc5c918e 174 int64_t next = url_ftell(pb) + size - 4;
221e21b7
BC
175
176 dref->type = get_le32(pb);
177 get_be32(pb); // version + flags
178 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
179
180 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
181 /* macintosh alias record */
182 uint16_t volume_len, len;
183 char volume[28];
184 int16_t type;
185
186 url_fskip(pb, 10);
187
188 volume_len = get_byte(pb);
189 volume_len = FFMIN(volume_len, 27);
190 get_buffer(pb, volume, 27);
191 volume[volume_len] = 0;
192 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
193
194 url_fskip(pb, 112);
195
196 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
197 type = get_be16(pb);
198 len = get_be16(pb);
199 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
200 if (len&1)
201 len += 1;
202 if (type == 2) { // absolute path
dbb37657 203 av_free(dref->path);
221e21b7 204 dref->path = av_mallocz(len+1);
2f4568e5
BC
205 if (!dref->path)
206 return AVERROR(ENOMEM);
221e21b7 207 get_buffer(pb, dref->path, len);
dbb7cbf2 208 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
209 len -= volume_len;
210 memmove(dref->path, dref->path+volume_len, len);
211 dref->path[len] = 0;
212 }
213 for (j = 0; j < len; j++)
214 if (dref->path[j] == ':')
215 dref->path[j] = '/';
216 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
217 } else
218 url_fskip(pb, len);
219 }
220 }
221 url_fseek(pb, next, SEEK_SET);
222 }
223 return 0;
224}
225
c3e92a6c 226static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 227{
fefe43ff 228 AVStream *st;
0c1a9eda 229 uint32_t type;
0c1a9eda 230 uint32_t ctype;
b6a17df4 231
fefe43ff
AC
232 if (c->fc->nb_streams < 1) // meta before first trak
233 return 0;
234
235 st = c->fc->streams[c->fc->nb_streams-1];
236
6cea494e 237 get_byte(pb); /* version */
23f08617 238 get_be24(pb); /* flags */
6cea494e
ZK
239
240 /* component type */
241 ctype = get_le32(pb);
242 type = get_le32(pb); /* component subtype */
243
29c90869
BC
244 dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
245 ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
246 dprintf(c->fc, "stype= %c%c%c%c\n",
247 *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
2229a5c6 248
37ffe34b 249 if (type == MKTAG('v','i','d','e'))
73920f07 250 st->codec->codec_type = CODEC_TYPE_VIDEO;
1c126b4f 251 else if(type == MKTAG('s','o','u','n'))
73920f07 252 st->codec->codec_type = CODEC_TYPE_AUDIO;
1c126b4f 253 else if(type == MKTAG('m','1','a',' '))
95a07973 254 st->codec->codec_id = CODEC_ID_MP2;
1c126b4f 255 else if(type == MKTAG('s','u','b','p')) {
8cb97693 256 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
8cb97693 257 }
6cea494e
ZK
258 get_be32(pb); /* component manufacture */
259 get_be32(pb); /* component flags */
260 get_be32(pb); /* component flags mask */
261
5ca1d879 262 if(atom.size <= 24)
6cea494e 263 return 0; /* nothing left to read */
5cd62665 264
3c13647a 265 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
266 return 0;
267}
268
9e40addd 269static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 270{
5cd62665 271 int len = 0;
5ca1d879
ZK
272 int count = 4;
273 while (count--) {
5cd62665 274 int c = get_byte(pb);
bb270c08
DB
275 len = (len << 7) | (c & 0x7f);
276 if (!(c & 0x80))
277 break;
0e7eed09
FB
278 }
279 return len;
280}
281
9e40addd 282static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
283{
284 int len;
285 *tag = get_byte(pb);
9e40addd 286 len = mp4_read_descr_len(pb);
318c5e05 287 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
288 return len;
289}
290
0b07ac42
BC
291#define MP4ESDescrTag 0x03
292#define MP4DecConfigDescrTag 0x04
293#define MP4DecSpecificDescrTag 0x05
294
1dec3994
BC
295static const AVCodecTag mp4_audio_types[] = {
296 { CODEC_ID_MP3ON4, 29 }, /* old mp3on4 draft */
297 { CODEC_ID_MP3ON4, 32 }, /* layer 1 */
298 { CODEC_ID_MP3ON4, 33 }, /* layer 2 */
299 { CODEC_ID_MP3ON4, 34 }, /* layer 3 */
300 { CODEC_ID_NONE, 0 },
301};
302
c3e92a6c 303static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5cd62665 304{
5cd62665 305 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 306 int tag, len;
b6a17df4 307
5cd62665 308 get_be32(pb); /* version + flags */
9e40addd 309 len = mp4_read_descr(c, pb, &tag);
5cd62665 310 if (tag == MP4ESDescrTag) {
bb270c08
DB
311 get_be16(pb); /* ID */
312 get_byte(pb); /* priority */
5cd62665 313 } else
bb270c08 314 get_be16(pb); /* ID */
5cd62665 315
9e40addd 316 len = mp4_read_descr(c, pb, &tag);
5cd62665 317 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
318 int object_type_id = get_byte(pb);
319 get_byte(pb); /* stream type */
320 get_be24(pb); /* buffer size db */
321 get_be32(pb); /* max bitrate */
322 get_be32(pb); /* avg bitrate */
323
324 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
325 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 326 len = mp4_read_descr(c, pb, &tag);
bb270c08 327 if (tag == MP4DecSpecificDescrTag) {
318c5e05 328 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
329 if((uint64_t)len > (1<<30))
330 return -1;
9a630c25 331 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
332 if (!st->codec->extradata)
333 return AVERROR(ENOMEM);
17871a02
BC
334 get_buffer(pb, st->codec->extradata, len);
335 st->codec->extradata_size = len;
1dec3994
BC
336 if (st->codec->codec_id == CODEC_ID_AAC) {
337 MPEG4AudioConfig cfg;
338 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
339 st->codec->extradata_size);
391872e4 340 if (cfg.chan_config > 7)
45a97d30
BC
341 return -1;
342 st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
343 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
344 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
345 else
346 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
347 dprintf(c->fc, "mp4a config channels %d obj %d ext obj %d "
348 "sample rate %d ext sample rate %d\n", st->codec->channels,
349 cfg.object_type, cfg.ext_object_type,
350 cfg.sample_rate, cfg.ext_sample_rate);
1dec3994
BC
351 if (!(st->codec->codec_id = codec_get_id(mp4_audio_types,
352 cfg.object_type)))
353 st->codec->codec_id = CODEC_ID_AAC;
17871a02 354 }
bb270c08 355 }
5cd62665 356 }
5cd62665
ZK
357 return 0;
358}
359
6da54074
BC
360static int mov_read_pasp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
361{
362 const int num = get_be32(pb);
363 const int den = get_be32(pb);
364 AVStream * const st = c->fc->streams[c->fc->nb_streams-1];
365 if (den != 0) {
f53ee312
BC
366 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
367 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num))
6da54074 368 av_log(c->fc, AV_LOG_WARNING,
f53ee312
BC
369 "sample aspect ratio already set to %d:%d, overriding by 'pasp' atom\n",
370 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
6da54074
BC
371 st->sample_aspect_ratio.num = num;
372 st->sample_aspect_ratio.den = den;
373 }
374 return 0;
375}
376
5ca1d879 377/* this atom contains actual media data */
c3e92a6c 378static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 379{
5ca1d879
ZK
380 if(atom.size == 0) /* wrong one (MP4) */
381 return 0;
382 c->found_mdat=1;
5ca1d879
ZK
383 return 0; /* now go for moov */
384}
385
c3e92a6c 386static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
4ea28253
BC
387{
388 uint32_t type = get_le32(pb);
389
152e9a43
BC
390 if (type != MKTAG('q','t',' ',' '))
391 c->isom = 1;
a512446e 392 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
393 get_be32(pb); /* minor version */
394 url_fskip(pb, atom.size - 8);
395 return 0;
396}
397
5ca1d879 398/* this atom should contain all header atoms */
c3e92a6c 399static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 400{
9cf0419b
PI
401 if (mov_read_default(c, pb, atom) < 0)
402 return -1;
5ca1d879
ZK
403 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
404 /* so we don't parse the whole file if over a network */
405 c->found_moov=1;
5ca1d879
ZK
406 return 0; /* now go for mdat */
407}
408
c3e92a6c 409static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
410{
411 c->fragment.moof_offset = url_ftell(pb) - 8;
412 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
413 return mov_read_default(c, pb, atom);
414}
5ca1d879 415
c3e92a6c 416static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 417{
f444b977 418 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 419 MOVStreamContext *sc = st->priv_data;
f444b977 420 int version = get_byte(pb);
49674dd0 421 char language[4] = {0};
dce25564 422 unsigned lang;
5ca1d879 423
b9a87c4d 424 if (version > 1)
7e627332 425 return -1; /* unsupported */
5ca1d879 426
23f08617 427 get_be24(pb); /* flags */
f444b977
BC
428 if (version == 1) {
429 get_be64(pb);
430 get_be64(pb);
431 } else {
432 get_be32(pb); /* creation time */
433 get_be32(pb); /* modification time */
434 }
5ca1d879 435
f444b977
BC
436 sc->time_scale = get_be32(pb);
437 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 438
b9a87c4d 439 lang = get_be16(pb); /* language */
49674dd0
AJ
440 if (ff_mov_lang_to_iso639(lang, language))
441 av_metadata_set(&st->metadata, "language", language);
5ca1d879
ZK
442 get_be16(pb); /* quality */
443
444 return 0;
445}
446
c3e92a6c 447static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 448{
1175561e 449 int version = get_byte(pb); /* version */
23f08617 450 get_be24(pb); /* flags */
5ca1d879 451
1175561e
BC
452 if (version == 1) {
453 get_be64(pb);
454 get_be64(pb);
455 } else {
456 get_be32(pb); /* creation time */
457 get_be32(pb); /* modification time */
458 }
5ca1d879 459 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
460
461 dprintf(c->fc, "time scale = %i\n", c->time_scale);
462
1175561e 463 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
464 get_be32(pb); /* preferred scale */
465
466 get_be16(pb); /* preferred volume */
467
468 url_fskip(pb, 10); /* reserved */
469
470 url_fskip(pb, 36); /* display matrix */
471
472 get_be32(pb); /* preview time */
473 get_be32(pb); /* preview duration */
474 get_be32(pb); /* poster time */
475 get_be32(pb); /* selection time */
476 get_be32(pb); /* selection duration */
477 get_be32(pb); /* current time */
478 get_be32(pb); /* next track ID */
479
480 return 0;
481}
482
c3e92a6c 483static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
9ed83b0a
ZK
484{
485 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
486
568e18b1
MN
487 if((uint64_t)atom.size > (1<<30))
488 return -1;
115329f1 489
9ed83b0a
ZK
490 // currently SVQ3 decoder expect full STSD header - so let's fake it
491 // this should be fixed and just SMI header should be passed
01f4895c 492 av_free(st->codec->extradata);
b014dd76
BC
493 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
494 if (!st->codec->extradata)
495 return AVERROR(ENOMEM);
17871a02
BC
496 st->codec->extradata_size = 0x5a + atom.size;
497 memcpy(st->codec->extradata, "SVQ3", 4); // fake
498 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
499 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
500 return 0;
501}
5ca1d879 502
c3e92a6c 503static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234
BC
504{
505 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
506 int little_endian = get_be16(pb);
507
fa50a027
BC
508 dprintf(c->fc, "enda %d\n", little_endian);
509 if (little_endian == 1) {
de23f234
BC
510 switch (st->codec->codec_id) {
511 case CODEC_ID_PCM_S24BE:
512 st->codec->codec_id = CODEC_ID_PCM_S24LE;
513 break;
514 case CODEC_ID_PCM_S32BE:
515 st->codec->codec_id = CODEC_ID_PCM_S32LE;
516 break;
a1ef2c4b
PR
517 case CODEC_ID_PCM_F32BE:
518 st->codec->codec_id = CODEC_ID_PCM_F32LE;
519 break;
520 case CODEC_ID_PCM_F64BE:
521 st->codec->codec_id = CODEC_ID_PCM_F64LE;
522 break;
de23f234
BC
523 default:
524 break;
525 }
526 }
527 return 0;
528}
529
014a5102 530/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
c3e92a6c 531static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234 532{
27134437
BC
533 AVStream *st;
534 uint64_t size;
68bc33fa 535 uint8_t *buf;
27134437
BC
536
537 if (c->fc->nb_streams < 1) // will happen with jp2 files
538 return 0;
539 st= c->fc->streams[c->fc->nb_streams-1];
540 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
68bc33fa 541 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 542 return -1;
68bc33fa
BC
543 buf= av_realloc(st->codec->extradata, size);
544 if(!buf)
545 return -1;
546 st->codec->extradata= buf;
547 buf+= st->codec->extradata_size;
548 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
549 AV_WB32( buf , atom.size + 8);
550 AV_WL32( buf + 4, atom.type);
551 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
552 return 0;
553}
554
c3e92a6c 555static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
d9b1c197
RT
556{
557 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
558
559 if((uint64_t)atom.size > (1<<30))
560 return -1;
115329f1 561
3840147e
MN
562 if (st->codec->codec_id == CODEC_ID_QDM2) {
563 // pass all frma atom to codec, needed at least for QDM2
564 av_free(st->codec->extradata);
b014dd76
BC
565 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
566 if (!st->codec->extradata)
567 return AVERROR(ENOMEM);
3840147e 568 st->codec->extradata_size = atom.size;
b014dd76 569 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 570 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
571 if (mov_read_default(c, pb, atom) < 0)
572 return -1;
5c72cad8 573 } else
bb270c08 574 url_fskip(pb, atom.size);
d9b1c197
RT
575 return 0;
576}
577
bde24601
BC
578/**
579 * This function reads atom content and puts data in extradata without tag
580 * nor size unlike mov_read_extradata.
581 */
c3e92a6c 582static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
169eb021
MM
583{
584 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
585
568e18b1
MN
586 if((uint64_t)atom.size > (1<<30))
587 return -1;
588
01f4895c 589 av_free(st->codec->extradata);
b014dd76
BC
590 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
591 if (!st->codec->extradata)
592 return AVERROR(ENOMEM);
01f4895c 593 st->codec->extradata_size = atom.size;
b014dd76 594 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
595 return 0;
596}
597
c3e92a6c 598static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
599{
600 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 601 MOVStreamContext *sc = st->priv_data;
568e18b1 602 unsigned int i, entries;
5ca1d879 603
5ca1d879 604 get_byte(pb); /* version */
23f08617 605 get_be24(pb); /* flags */
5ca1d879
ZK
606
607 entries = get_be32(pb);
115329f1 608
568e18b1
MN
609 if(entries >= UINT_MAX/sizeof(int64_t))
610 return -1;
115329f1 611
9a630c25 612 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879 613 if (!sc->chunk_offsets)
0d8f0abf
BC
614 return AVERROR(ENOMEM);
615 sc->chunk_count = entries;
616
37ffe34b
BC
617 if (atom.type == MKTAG('s','t','c','o'))
618 for(i=0; i<entries; i++)
5ca1d879 619 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
620 else if (atom.type == MKTAG('c','o','6','4'))
621 for(i=0; i<entries; i++)
5ca1d879 622 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 623 else
5ca1d879 624 return -1;
115329f1 625
5ca1d879
ZK
626 return 0;
627}
628
2288834f
BC
629/**
630 * Compute codec id for 'lpcm' tag.
631 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
632 */
fb65d2ca 633static enum CodecID mov_get_lpcm_codec_id(int bps, int flags)
2288834f
BC
634{
635 if (flags & 1) { // floating point
636 if (flags & 2) { // big endian
637 if (bps == 32) return CODEC_ID_PCM_F32BE;
7e4b3fb8 638 else if (bps == 64) return CODEC_ID_PCM_F64BE;
2288834f 639 } else {
7e4b3fb8
BC
640 if (bps == 32) return CODEC_ID_PCM_F32LE;
641 else if (bps == 64) return CODEC_ID_PCM_F64LE;
2288834f
BC
642 }
643 } else {
644 if (flags & 2) {
645 if (bps == 8)
646 // signed integer
647 if (flags & 4) return CODEC_ID_PCM_S8;
648 else return CODEC_ID_PCM_U8;
649 else if (bps == 16) return CODEC_ID_PCM_S16BE;
650 else if (bps == 24) return CODEC_ID_PCM_S24BE;
651 else if (bps == 32) return CODEC_ID_PCM_S32BE;
652 } else {
653 if (bps == 8)
654 if (flags & 4) return CODEC_ID_PCM_S8;
655 else return CODEC_ID_PCM_U8;
021b8ae3 656 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
657 else if (bps == 24) return CODEC_ID_PCM_S24LE;
658 else if (bps == 32) return CODEC_ID_PCM_S32LE;
659 }
660 }
fb65d2ca 661 return CODEC_ID_NONE;
2288834f
BC
662}
663
c3e92a6c 664static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
665{
666 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 667 MOVStreamContext *sc = st->priv_data;
baf9fb32 668 int j, entries, pseudo_stream_id;
b595afaa 669
6cea494e 670 get_byte(pb); /* version */
23f08617 671 get_be24(pb); /* flags */
6cea494e 672
6cea494e
ZK
673 entries = get_be32(pb);
674
117a9190
BC
675 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
676 //Parsing Sample description table
b6a17df4 677 enum CodecID id;
221e21b7 678 int dref_id;
c3e92a6c 679 MOVAtom a = { 0, 0, 0 };
bc5c918e 680 int64_t start_pos = url_ftell(pb);
bb270c08 681 int size = get_be32(pb); /* size */
baf9fb32 682 uint32_t format = get_le32(pb); /* data format */
5cd62665 683
6cea494e
ZK
684 get_be32(pb); /* reserved */
685 get_be16(pb); /* reserved */
221e21b7 686 dref_id = get_be16(pb);
0e7eed09 687
744a9c75 688 if (st->codec->codec_tag &&
978677a7 689 st->codec->codec_tag != format &&
744a9c75 690 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 691 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 692 ){
7ce68923
DB
693 /* Multiple fourcc, we skip JPEG. This is not correct, we should
694 * export it as a separate AVStream but this needs a few changes
695 * in the MOV demuxer, patch welcome. */
285a3da9 696 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
697 url_fskip(pb, size - (url_ftell(pb) - start_pos));
698 continue;
699 }
978677a7 700 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 701 sc->dref_id= dref_id;
e7cc4b52 702
bb270c08 703 st->codec->codec_tag = format;
1e5f5e3b 704 id = codec_get_id(codec_movaudio_tags, format);
1c126b4f 705 if (id<=0 && (format&0xFFFF) == 'm'+('s'<<8))
bca7db35
MN
706 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
707
48855b26 708 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 709 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26 710 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 711 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1e5f5e3b 712 id = codec_get_id(codec_movvideo_tags, format);
99487f42 713 if (id <= 0)
de23f234 714 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
715 if (id > 0)
716 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
717 else if(st->codec->codec_type == CODEC_TYPE_DATA){
718 id = codec_get_id(ff_codec_movsubtitle_tags, format);
719 if(id > 0)
720 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
721 }
99487f42
BC
722 }
723
29c90869
BC
724 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
725 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
726 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 727
99487f42 728 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
baf9fb32
BC
729 uint8_t codec_name[32];
730 unsigned int color_depth;
731 int color_greyscale;
baf9fb32 732
01f4895c 733 st->codec->codec_id = id;
6cea494e
ZK
734 get_be16(pb); /* version */
735 get_be16(pb); /* revision level */
736 get_be32(pb); /* vendor */
737 get_be32(pb); /* temporal quality */
94472c1d 738 get_be32(pb); /* spatial quality */
3cb4ee51
BC
739
740 st->codec->width = get_be16(pb); /* width */
741 st->codec->height = get_be16(pb); /* height */
742
6cea494e
ZK
743 get_be32(pb); /* horiz resolution */
744 get_be32(pb); /* vert resolution */
745 get_be32(pb); /* data size, always 0 */
43612ffe 746 get_be16(pb); /* frames per samples */
f8c18cd7 747
eb034aca 748 get_buffer(pb, codec_name, 32); /* codec name, pascal string */
576f1445
BC
749 if (codec_name[0] <= 31) {
750 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
751 st->codec->codec_name[codec_name[0]] = 0;
752 }
5cd62665 753
dd1c8f3e 754 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
01f4895c 755 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f 756 dprintf(c->fc, "depth %d, ctab id %d\n",
dd1c8f3e 757 st->codec->bits_per_coded_sample, st->codec->color_table_id);
b595afaa 758 /* figure out the palette situation */
dd1c8f3e
LA
759 color_depth = st->codec->bits_per_coded_sample & 0x1F;
760 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
b595afaa
MM
761
762 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 763 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 764 (color_depth == 8)) {
47e1d7ef
BC
765 /* for palette traversal */
766 unsigned int color_start, color_count, color_end;
767 unsigned char r, g, b;
768
e49da827 769 st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
b595afaa 770 if (color_greyscale) {
47e1d7ef 771 int color_index, color_dec;
b595afaa 772 /* compute the greyscale palette */
dd1c8f3e 773 st->codec->bits_per_coded_sample = color_depth;
b595afaa
MM
774 color_count = 1 << color_depth;
775 color_index = 255;
776 color_dec = 256 / (color_count - 1);
777 for (j = 0; j < color_count; j++) {
778 r = g = b = color_index;
e49da827 779 st->codec->palctrl->palette[j] =
b595afaa
MM
780 (r << 16) | (g << 8) | (b);
781 color_index -= color_dec;
782 if (color_index < 0)
783 color_index = 0;
784 }
71f36235 785 } else if (st->codec->color_table_id) {
47e1d7ef 786 const uint8_t *color_table;
b595afaa
MM
787 /* if flag bit 3 is set, use the default palette */
788 color_count = 1 << color_depth;
789 if (color_depth == 2)
a90466f7 790 color_table = ff_qt_default_palette_4;
b595afaa 791 else if (color_depth == 4)
a90466f7 792 color_table = ff_qt_default_palette_16;
b595afaa 793 else
a90466f7 794 color_table = ff_qt_default_palette_256;
b595afaa
MM
795
796 for (j = 0; j < color_count; j++) {
797 r = color_table[j * 4 + 0];
798 g = color_table[j * 4 + 1];
799 b = color_table[j * 4 + 2];
e49da827 800 st->codec->palctrl->palette[j] =
b595afaa
MM
801 (r << 16) | (g << 8) | (b);
802 }
b595afaa 803 } else {
b595afaa
MM
804 /* load the palette from the file */
805 color_start = get_be32(pb);
806 color_count = get_be16(pb);
807 color_end = get_be16(pb);
8b35bd80
MM
808 if ((color_start <= 255) &&
809 (color_end <= 255)) {
9de2919c
MM
810 for (j = color_start; j <= color_end; j++) {
811 /* each R, G, or B component is 16 bits;
812 * only use the top 8 bits; skip alpha bytes
813 * up front */
814 get_byte(pb);
815 get_byte(pb);
816 r = get_byte(pb);
817 get_byte(pb);
818 g = get_byte(pb);
819 get_byte(pb);
820 b = get_byte(pb);
821 get_byte(pb);
e49da827 822 st->codec->palctrl->palette[j] =
9de2919c 823 (r << 16) | (g << 8) | (b);
8b35bd80 824 }
b595afaa
MM
825 }
826 }
01f4895c 827 st->codec->palctrl->palette_changed = 1;
e49da827 828 }
de23f234 829 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
aaef2bb3 830 int bits_per_sample, flags;
de23f234 831 uint16_t version = get_be16(pb);
b595afaa 832
99487f42 833 st->codec->codec_id = id;
de23f234
BC
834 get_be16(pb); /* revision level */
835 get_be32(pb); /* vendor */
6d6d7970 836
de23f234 837 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 838 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
dd1c8f3e 839 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
de23f234 840
77c75437 841 sc->audio_cid = get_be16(pb);
de23f234
BC
842 get_be16(pb); /* packet size = 0 */
843
844 st->codec->sample_rate = ((get_be32(pb) >> 16));
845
5ef3ad59
BC
846 //Read QT version 1 fields. In version 0 these do not exist.
847 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
848 if(!c->isom) {
849 if(version==1) {
850 sc->samples_per_frame = get_be32(pb);
851 get_be32(pb); /* bytes per packet */
852 sc->bytes_per_frame = get_be32(pb);
853 get_be32(pb); /* bytes per sample */
854 } else if(version==2) {
855 get_be32(pb); /* sizeof struct only */
856 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
857 st->codec->channels = get_be32(pb);
858 get_be32(pb); /* always 0x7F000000 */
dd1c8f3e 859 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
aaef2bb3 860 flags = get_be32(pb); /* lcpm format specific flag */
9184d53a
BC
861 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
862 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f 863 if (format == MKTAG('l','p','c','m'))
dd1c8f3e 864 st->codec->codec_id = mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
5ef3ad59
BC
865 }
866 }
867
de23f234 868 switch (st->codec->codec_id) {
b72708f8
BC
869 case CODEC_ID_PCM_S8:
870 case CODEC_ID_PCM_U8:
dd1c8f3e 871 if (st->codec->bits_per_coded_sample == 16)
b72708f8
BC
872 st->codec->codec_id = CODEC_ID_PCM_S16BE;
873 break;
0dd39bfe 874 case CODEC_ID_PCM_S16LE:
de23f234 875 case CODEC_ID_PCM_S16BE:
dd1c8f3e 876 if (st->codec->bits_per_coded_sample == 8)
de23f234 877 st->codec->codec_id = CODEC_ID_PCM_S8;
dd1c8f3e 878 else if (st->codec->bits_per_coded_sample == 24)
6b477e1b
BC
879 st->codec->codec_id =
880 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
881 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 882 break;
53152765
BC
883 /* set values for old format before stsd version 1 appeared */
884 case CODEC_ID_MACE3:
885 sc->samples_per_frame = 6;
886 sc->bytes_per_frame = 2*st->codec->channels;
887 break;
888 case CODEC_ID_MACE6:
889 sc->samples_per_frame = 6;
890 sc->bytes_per_frame = 1*st->codec->channels;
891 break;
892 case CODEC_ID_ADPCM_IMA_QT:
893 sc->samples_per_frame = 64;
894 sc->bytes_per_frame = 34*st->codec->channels;
895 break;
cc326d2b
BC
896 case CODEC_ID_GSM:
897 sc->samples_per_frame = 160;
898 sc->bytes_per_frame = 33;
899 break;
de23f234
BC
900 default:
901 break;
6d6d7970 902 }
14342fd5 903
9770089d
BC
904 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
905 if (bits_per_sample) {
dd1c8f3e 906 st->codec->bits_per_coded_sample = bits_per_sample;
9770089d
BC
907 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
908 }
cc8d87b7 909 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
58e9f2ed
DC
910 // ttxt stsd contains display flags, justification, background
911 // color, fonts, and default styles, so fake an atom to read it
912 MOVAtom fake_atom = { .size = size - (url_ftell(pb) - start_pos) };
913 mov_read_glbl(c, pb, fake_atom);
cc8d87b7 914 st->codec->codec_id= id;
6cdbff63
DC
915 st->codec->width = sc->width;
916 st->codec->height = sc->height;
de23f234
BC
917 } else {
918 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
919 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 920 }
de23f234
BC
921 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
922 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
923 if (a.size > 8) {
924 if (mov_read_default(c, pb, a) < 0)
925 return -1;
926 } else if (a.size > 0)
de23f234 927 url_fskip(pb, a.size);
6cea494e 928 }
115329f1 929
60f5c96e 930 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 931 st->codec->sample_rate= sc->time_scale;
e31bd3e3 932
d00f8e17 933 /* special codec parameters handling */
e31bd3e3 934 switch (st->codec->codec_id) {
b250f9c6 935#if CONFIG_DV_DEMUXER
b60c0454 936 case CODEC_ID_DVAUDIO:
8e2fd8e1 937 c->dv_fctx = avformat_alloc_context();
b60c0454
BC
938 c->dv_demux = dv_init_demux(c->dv_fctx);
939 if (!c->dv_demux) {
940 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
941 return -1;
942 }
943 sc->dv_audio_container = 1;
944 st->codec->codec_id = CODEC_ID_PCM_S16LE;
945 break;
989ac5a6 946#endif
b95319a2 947 /* no ifdef since parameters are always those */
3f78a3a9 948 case CODEC_ID_QCELP:
73b458e3 949 st->codec->frame_size= 160;
061f407e 950 st->codec->channels= 1; /* really needed */
73b458e3 951 break;
b95319a2 952 case CODEC_ID_AMR_NB:
aeb62788 953 case CODEC_ID_AMR_WB:
cfb5a2ab 954 st->codec->frame_size= sc->samples_per_frame;
b95319a2 955 st->codec->channels= 1; /* really needed */
f06188d5 956 /* force sample rate for amr, stsd in 3gp does not store sample rate */
5b9ce252 957 if (st->codec->codec_id == CODEC_ID_AMR_NB)
f06188d5 958 st->codec->sample_rate = 8000;
5b9ce252
BC
959 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
960 st->codec->sample_rate = 16000;
b95319a2 961 break;
a41104f8 962 case CODEC_ID_MP2:
c59f24e6 963 case CODEC_ID_MP3:
95a07973 964 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 965 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 966 break;
5610f20e 967 case CODEC_ID_GSM:
74e9b9ae
BC
968 case CODEC_ID_ADPCM_MS:
969 case CODEC_ID_ADPCM_IMA_WAV:
970 st->codec->block_align = sc->bytes_per_frame;
971 break;
be511925 972 case CODEC_ID_ALAC:
a1532824 973 if (st->codec->extradata_size == 36) {
364df7b7
BC
974 st->codec->frame_size = AV_RB32(st->codec->extradata+12);
975 st->codec->channels = AV_RB8 (st->codec->extradata+21);
a1532824 976 }
be511925 977 break;
e31bd3e3
BC
978 default:
979 break;
980 }
5cd62665 981
6cea494e
ZK
982 return 0;
983}
984
c3e92a6c 985static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 986{
5ca1d879 987 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 988 MOVStreamContext *sc = st->priv_data;
568e18b1 989 unsigned int i, entries;
b6a17df4 990
6cea494e 991 get_byte(pb); /* version */
23f08617 992 get_be24(pb); /* flags */
6cea494e
ZK
993
994 entries = get_be32(pb);
115329f1 995
f8c18cd7
BC
996 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
997
0d8f0abf
BC
998 if(entries >= UINT_MAX / sizeof(*sc->stsc_data))
999 return -1;
04e06cfa
BC
1000 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1001 if (!sc->stsc_data)
0d8f0abf
BC
1002 return AVERROR(ENOMEM);
1003 sc->stsc_count = entries;
1004
6cea494e 1005 for(i=0; i<entries; i++) {
04e06cfa
BC
1006 sc->stsc_data[i].first = get_be32(pb);
1007 sc->stsc_data[i].count = get_be32(pb);
1008 sc->stsc_data[i].id = get_be32(pb);
6cea494e
ZK
1009 }
1010 return 0;
1011}
1012
c3e92a6c 1013static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
247d56f5
BB
1014{
1015 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1016 MOVStreamContext *sc = st->priv_data;
568e18b1 1017 unsigned int i, entries;
247d56f5 1018
247d56f5 1019 get_byte(pb); /* version */
23f08617 1020 get_be24(pb); /* flags */
247d56f5
BB
1021
1022 entries = get_be32(pb);
115329f1 1023
0d8f0abf
BC
1024 dprintf(c->fc, "keyframe_count = %d\n", entries);
1025
1c02d96f 1026 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1027 return -1;
1c02d96f 1028 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5 1029 if (!sc->keyframes)
0d8f0abf
BC
1030 return AVERROR(ENOMEM);
1031 sc->keyframe_count = entries;
1032
247d56f5
BB
1033 for(i=0; i<entries; i++) {
1034 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1035 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1036 }
1037 return 0;
1038}
1039
c3e92a6c 1040static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 1041{
5ca1d879 1042 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1043 MOVStreamContext *sc = st->priv_data;
b72708f8 1044 unsigned int i, entries, sample_size;
b6a17df4 1045
6cea494e 1046 get_byte(pb); /* version */
23f08617 1047 get_be24(pb); /* flags */
5cd62665 1048
b72708f8
BC
1049 sample_size = get_be32(pb);
1050 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1051 sc->sample_size = sample_size;
6cea494e 1052 entries = get_be32(pb);
0d8f0abf
BC
1053
1054 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
568e18b1 1055
6cea494e 1056 sc->sample_count = entries;
b72708f8
BC
1057 if (sample_size)
1058 return 0;
1059
0d8f0abf
BC
1060 if(entries >= UINT_MAX / sizeof(int))
1061 return -1;
1c02d96f 1062 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4 1063 if (!sc->sample_sizes)
0d8f0abf
BC
1064 return AVERROR(ENOMEM);
1065
eb61405a 1066 for(i=0; i<entries; i++)
6cea494e 1067 sc->sample_sizes[i] = get_be32(pb);
6cea494e
ZK
1068 return 0;
1069}
1070
c3e92a6c 1071static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 1072{
5ca1d879 1073 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1074 MOVStreamContext *sc = st->priv_data;
568e18b1 1075 unsigned int i, entries;
d957696f
MN
1076 int64_t duration=0;
1077 int64_t total_sample_count=0;
b6a17df4 1078
0147f198 1079 get_byte(pb); /* version */
23f08617 1080 get_be24(pb); /* flags */
0147f198 1081 entries = get_be32(pb);
0d8f0abf
BC
1082
1083 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1084
c3e92a6c 1085 if(entries >= UINT_MAX / sizeof(*sc->stts_data))
568e18b1 1086 return -1;
c3e92a6c 1087 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
c1da59fa 1088 if (!sc->stts_data)
0d8f0abf
BC
1089 return AVERROR(ENOMEM);
1090 sc->stts_count = entries;
cd7352d5 1091
0147f198 1092 for(i=0; i<entries; i++) {
cd461d48
MN
1093 int sample_duration;
1094 int sample_count;
0147f198 1095
891f64b3 1096 sample_count=get_be32(pb);
0147f198 1097 sample_duration = get_be32(pb);
cd7352d5
MN
1098 sc->stts_data[i].count= sample_count;
1099 sc->stts_data[i].duration= sample_duration;
1100
9ce6c138 1101 sc->time_rate= av_gcd(sc->time_rate, sample_duration);
961e0ccd 1102
318c5e05 1103 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1104
7e815047 1105 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1106 total_sample_count+=sample_count;
891f64b3 1107 }
1108
961e0ccd
MN
1109 st->nb_frames= total_sample_count;
1110 if(duration)
1111 st->duration= duration;
0147f198
FR
1112 return 0;
1113}
1114
c3e92a6c 1115static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
c4ac052b 1116{
70a61ed4 1117 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1118 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1119 unsigned int i, entries;
1120
c4ac052b 1121 get_byte(pb); /* version */
23f08617 1122 get_be24(pb); /* flags */
c4ac052b 1123 entries = get_be32(pb);
0d8f0abf
BC
1124
1125 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1126
c3e92a6c 1127 if(entries >= UINT_MAX / sizeof(*sc->ctts_data))
c4ac052b 1128 return -1;
c3e92a6c 1129 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
c1da59fa 1130 if (!sc->ctts_data)
0d8f0abf
BC
1131 return AVERROR(ENOMEM);
1132 sc->ctts_count = entries;
4e5ef14f 1133
c4ac052b 1134 for(i=0; i<entries; i++) {
70a61ed4
MN
1135 int count =get_be32(pb);
1136 int duration =get_be32(pb);
1137
b0519015 1138 if (duration < 0) {
0c5f76f7
BC
1139 sc->wrong_dts = 1;
1140 st->codec->has_b_frames = 1;
b0519015 1141 }
70a61ed4
MN
1142 sc->ctts_data[i].count = count;
1143 sc->ctts_data[i].duration= duration;
1144
9ce6c138 1145 sc->time_rate= av_gcd(sc->time_rate, FFABS(duration));
c4ac052b
MN
1146 }
1147 return 0;
1148}
1149
1e77810d
BC
1150static void mov_build_index(MOVContext *mov, AVStream *st)
1151{
1152 MOVStreamContext *sc = st->priv_data;
bc5c918e 1153 int64_t current_offset;
1e77810d
BC
1154 int64_t current_dts = 0;
1155 unsigned int stts_index = 0;
1156 unsigned int stsc_index = 0;
1157 unsigned int stss_index = 0;
1158 unsigned int i, j;
1159
baf2ffd3
BC
1160 /* adjust first dts according to edit list */
1161 if (sc->time_offset) {
1162 assert(sc->time_offset % sc->time_rate == 0);
1163 current_dts = - (sc->time_offset / sc->time_rate);
1164 }
1165
d3bc61ac
BC
1166 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1167 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1168 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1169 unsigned int current_sample = 0;
1170 unsigned int stts_sample = 0;
1171 unsigned int keyframe, sample_size;
1172 unsigned int distance = 0;
1173 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1174
1175 st->nb_frames = sc->sample_count;
1176 for (i = 0; i < sc->chunk_count; i++) {
1177 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1178 if (stsc_index + 1 < sc->stsc_count &&
1179 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1180 stsc_index++;
04e06cfa 1181 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
1e77810d
BC
1182 if (current_sample >= sc->sample_count) {
1183 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
f0f2218d 1184 return;
1e77810d
BC
1185 }
1186 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1187 if (keyframe) {
1188 distance = 0;
1189 if (stss_index + 1 < sc->keyframe_count)
1190 stss_index++;
1191 }
1192 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1193 if(sc->pseudo_stream_id == -1 ||
04e06cfa 1194 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
1e77810d
BC
1195 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1196 keyframe ? AVINDEX_KEYFRAME : 0);
585dac65
BC
1197 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1198 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1199 current_offset, current_dts, sample_size, distance, keyframe);
1200 }
6c00a9de 1201
1e77810d
BC
1202 current_offset += sample_size;
1203 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1204 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1205 distance++;
1206 stts_sample++;
1207 current_sample++;
1208 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1209 stts_sample = 0;
1210 stts_index++;
1211 }
1212 }
1213 }
1214 } else { /* read whole chunk */
1215 unsigned int chunk_samples, chunk_size, chunk_duration;
1216 unsigned int frames = 1;
1217 for (i = 0; i < sc->chunk_count; i++) {
1218 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1219 if (stsc_index + 1 < sc->stsc_count &&
1220 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1221 stsc_index++;
04e06cfa 1222 chunk_samples = sc->stsc_data[stsc_index].count;
1e77810d
BC
1223 /* get chunk size, beware of alaw/ulaw/mace */
1224 if (sc->samples_per_frame > 0 &&
1225 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
3b8c000d 1226 if (sc->samples_per_frame < 160)
1e77810d
BC
1227 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1228 else {
1229 chunk_size = sc->bytes_per_frame;
1230 frames = chunk_samples / sc->samples_per_frame;
1231 chunk_samples = sc->samples_per_frame;
1232 }
48a55290 1233 } else
1e77810d 1234 chunk_size = chunk_samples * sc->sample_size;
1e77810d
BC
1235 for (j = 0; j < frames; j++) {
1236 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1237 /* get chunk duration */
1238 chunk_duration = 0;
1239 while (chunk_samples > 0) {
1240 if (chunk_samples < sc->stts_data[stts_index].count) {
1241 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1242 sc->stts_data[stts_index].count -= chunk_samples;
1243 break;
1244 } else {
1245 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1246 chunk_samples -= sc->stts_data[stts_index].count;
1247 if (stts_index + 1 < sc->stts_count)
1248 stts_index++;
1249 }
1250 }
1251 current_offset += sc->bytes_per_frame;
117a9190
BC
1252 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1253 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1254 chunk_size, chunk_duration);
1e77810d
BC
1255 assert(chunk_duration % sc->time_rate == 0);
1256 current_dts += chunk_duration / sc->time_rate;
1257 }
1258 }
1259 }
1e77810d 1260}
bd991df2 1261
c3e92a6c 1262static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1263{
1264 AVStream *st;
1265 MOVStreamContext *sc;
bd991df2 1266 int ret;
5ca1d879 1267
5ca1d879 1268 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1269 if (!st) return AVERROR(ENOMEM);
9a630c25 1270 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1271 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1272
5ca1d879 1273 st->priv_data = sc;
05edc1a7 1274 st->codec->codec_type = CODEC_TYPE_DATA;
64d50fa5 1275 sc->ffindex = st->index;
5ca1d879 1276
bd991df2
BC
1277 if ((ret = mov_read_default(c, pb, atom)) < 0)
1278 return ret;
1279
1280 /* sanity checks */
6c00a9de
BC
1281 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
1282 (!sc->sample_size && !sc->sample_count))) {
6282c5f4
BC
1283 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1284 st->index);
bd991df2
BC
1285 return 0;
1286 }
6c00a9de
BC
1287
1288 if (!sc->time_rate)
1289 sc->time_rate = 1;
1290 if (!sc->time_scale)
1291 sc->time_scale = c->time_scale;
1292
bd991df2
BC
1293 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1294
3f78a3a9 1295 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
5b4f5e5d
BC
1296 !st->codec->frame_size && sc->stts_count == 1) {
1297 st->codec->frame_size = av_rescale(sc->stts_data[0].duration,
1298 st->codec->sample_rate, sc->time_scale);
1299 dprintf(c->fc, "frame size %d\n", st->codec->frame_size);
1300 }
bd991df2 1301
6c00a9de 1302 if (st->duration != AV_NOPTS_VALUE) {
bd991df2
BC
1303 assert(st->duration % sc->time_rate == 0);
1304 st->duration /= sc->time_rate;
1305 }
64d50fa5 1306
bd991df2
BC
1307 mov_build_index(c, st);
1308
1309 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1310 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
9e81a0ce
BC
1311 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1312 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
bd991df2
BC
1313 } else
1314 sc->pb = c->fc->pb;
1315
1316 switch (st->codec->codec_id) {
b250f9c6 1317#if CONFIG_H261_DECODER
bd991df2
BC
1318 case CODEC_ID_H261:
1319#endif
b250f9c6 1320#if CONFIG_H263_DECODER
bd991df2
BC
1321 case CODEC_ID_H263:
1322#endif
b250f9c6 1323#if CONFIG_MPEG4_DECODER
bd991df2
BC
1324 case CODEC_ID_MPEG4:
1325#endif
6c00a9de 1326 st->codec->width = 0; /* let decoder init width/height */
bd991df2
BC
1327 st->codec->height= 0;
1328 break;
bd991df2 1329 }
f9900374
BC
1330
1331 /* Do not need those anymore. */
1332 av_freep(&sc->chunk_offsets);
04e06cfa 1333 av_freep(&sc->stsc_data);
f9900374
BC
1334 av_freep(&sc->sample_sizes);
1335 av_freep(&sc->keyframes);
1336 av_freep(&sc->stts_data);
1337
bd991df2 1338 return 0;
5ca1d879
ZK
1339}
1340
c3e92a6c 1341static int mov_read_ilst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201
BC
1342{
1343 int ret;
1344 c->itunes_metadata = 1;
1345 ret = mov_read_default(c, pb, atom);
1346 c->itunes_metadata = 0;
1347 return ret;
1348}
1349
c3e92a6c 1350static int mov_read_meta(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201 1351{
df8843c6
BC
1352 while (atom.size > 8) {
1353 uint32_t tag = get_le32(pb);
1354 atom.size -= 4;
1355 if (tag == MKTAG('h','d','l','r')) {
1356 url_fseek(pb, -8, SEEK_CUR);
1357 atom.size += 8;
1358 return mov_read_default(c, pb, atom);
1359 }
1360 }
1361 return 0;
51c15201
BC
1362}
1363
c3e92a6c 1364static int mov_read_trkn(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201 1365{
bc718b47 1366 char track[16];
51c15201
BC
1367 get_be32(pb); // type
1368 get_be32(pb); // unknown
bc718b47
AJ
1369 snprintf(track, sizeof(track), "%d", get_be32(pb));
1370 av_metadata_set(&c->fc->metadata, "track", track);
1371 dprintf(c->fc, "%.4s %s\n", (char*)&atom.type, track);
51c15201
BC
1372 return 0;
1373}
1374
c3e92a6c 1375static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
d2ace376 1376{
873358e5
BC
1377#ifdef MOV_EXPORT_ALL_METADATA
1378 char tmp_key[5];
1379#endif
49674dd0
AJ
1380 char str[1024], key2[16], language[4] = {0};
1381 const char *key = NULL;
51c15201
BC
1382 uint16_t str_size;
1383
86b0affd 1384 switch (atom.type) {
49674dd0 1385 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
54b4ea57 1386 case MKTAG(0xa9,'a','u','t'):
51c15201 1387 case MKTAG(0xa9,'A','R','T'):
49674dd0
AJ
1388 case MKTAG(0xa9,'w','r','t'): key = "author"; break;
1389 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
51c15201 1390 case MKTAG(0xa9,'c','m','t'):
49674dd0
AJ
1391 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
1392 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
54b4ea57
AJ
1393 case MKTAG(0xa9,'d','a','y'): key = "year"; break;
1394 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
1395 case MKTAG(0xa9,'t','o','o'):
1396 case MKTAG(0xa9,'e','n','c'): key = "muxer"; break;
86b0affd 1397 }
873358e5
BC
1398
1399 if (c->itunes_metadata && atom.size > 8) {
1400 int data_size = get_be32(pb);
1401 int tag = get_le32(pb);
1402 if (tag == MKTAG('d','a','t','a')) {
1403 get_be32(pb); // type
1404 get_be32(pb); // unknown
1405 str_size = data_size - 16;
1406 atom.size -= 16;
1407 } else return 0;
1408 } else if (atom.size > 4 && key && !c->itunes_metadata) {
1409 str_size = get_be16(pb); // string length
1410 ff_mov_lang_to_iso639(get_be16(pb), language);
1411 atom.size -= 4;
1412 } else
1413 str_size = atom.size;
1414
1415#ifdef MOV_EXPORT_ALL_METADATA
1416 if (!key) {
1417 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
1418 key = tmp_key;
1419 }
1420#endif
1421
49674dd0 1422 if (!key)
86b0affd 1423 return 0;
bf252f7f
BC
1424 if (atom.size < 0)
1425 return -1;
1426
49674dd0
AJ
1427 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
1428 get_buffer(pb, str, str_size);
1429 str[str_size] = 0;
1430 av_metadata_set(&c->fc->metadata, key, str);
1431 if (*language && strcmp(language, "und")) {
1432 snprintf(key2, sizeof(key2), "%s-%s", key, language);
1433 av_metadata_set(&c->fc->metadata, key2, str);
1434 }
873358e5
BC
1435#ifdef DEBUG_METADATA
1436 av_log(c->fc, AV_LOG_DEBUG, "lang \"%3s\" ", language);
1437 av_log(c->fc, AV_LOG_DEBUG, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %lld\n",
1438 key, str, (char*)&atom.type, str_size, atom.size);
1439#endif
1440
d2ace376
BF
1441 return 0;
1442}
1443
c3e92a6c 1444static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 1445{
ec072669
JS
1446 int i;
1447 int width;
1448 int height;
1449 int64_t disp_transform[2];
1450 int display_matrix[3][2];
f444b977 1451 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
6cdbff63 1452 MOVStreamContext *sc = st->priv_data;
f444b977 1453 int version = get_byte(pb);
5ca1d879 1454
23f08617 1455 get_be24(pb); /* flags */
5ca1d879
ZK
1456 /*
1457 MOV_TRACK_ENABLED 0x0001
1458 MOV_TRACK_IN_MOVIE 0x0002
1459 MOV_TRACK_IN_PREVIEW 0x0004
1460 MOV_TRACK_IN_POSTER 0x0008
1461 */
1462
1175561e
BC
1463 if (version == 1) {
1464 get_be64(pb);
1465 get_be64(pb);
1466 } else {
1467 get_be32(pb); /* creation time */
1468 get_be32(pb); /* modification time */
1469 }
5ca1d879
ZK
1470 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1471 get_be32(pb); /* reserved */
fcdd622c 1472
117a9190
BC
1473 /* highlevel (considering edits) duration in movie timebase */
1474 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1475 get_be32(pb); /* reserved */
1476 get_be32(pb); /* reserved */
1477
1478 get_be16(pb); /* layer */
1479 get_be16(pb); /* alternate group */
1480 get_be16(pb); /* volume */
1481 get_be16(pb); /* reserved */
1482
ec072669
JS
1483 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1484 // they're kept in fixed point format through all calculations
1485 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1486 for (i = 0; i < 3; i++) {
1487 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1488 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1489 get_be32(pb); // 2.30 fixed point (not used)
1490 }
5ca1d879 1491
ec072669
JS
1492 width = get_be32(pb); // 16.16 fixed point track width
1493 height = get_be32(pb); // 16.16 fixed point track height
6cdbff63
DC
1494 sc->width = width >> 16;
1495 sc->height = height >> 16;
ec072669
JS
1496
1497 //transform the display width/height according to the matrix
1498 // skip this if the display matrix is the default identity matrix
1499 // to keep the same scale, use [width height 1<<16]
1500 if (width && height &&
1501 (display_matrix[0][0] != 65536 || display_matrix[0][1] ||
1502 display_matrix[1][0] || display_matrix[1][1] != 65536 ||
1503 display_matrix[2][0] || display_matrix[2][1])) {
1504 for (i = 0; i < 2; i++)
1505 disp_transform[i] =
1506 (int64_t) width * display_matrix[0][i] +
1507 (int64_t) height * display_matrix[1][i] +
1508 ((int64_t) display_matrix[2][i] << 16);
1509
1510 //sample aspect ratio is new width/height divided by old width/height
59729451 1511 st->sample_aspect_ratio = av_d2q(
ec072669
JS
1512 ((double) disp_transform[0] * height) /
1513 ((double) disp_transform[1] * width), INT_MAX);
1514 }
5ca1d879
ZK
1515 return 0;
1516}
1517
c3e92a6c 1518static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1519{
1520 MOVFragment *frag = &c->fragment;
1521 MOVTrackExt *trex = NULL;
1522 int flags, track_id, i;
1523
1524 get_byte(pb); /* version */
1525 flags = get_be24(pb);
1526
1527 track_id = get_be32(pb);
63581eb1 1528 if (!track_id)
61aedb0f
BC
1529 return -1;
1530 frag->track_id = track_id;
1531 for (i = 0; i < c->trex_count; i++)
1532 if (c->trex_data[i].track_id == frag->track_id) {
1533 trex = &c->trex_data[i];
1534 break;
1535 }
1536 if (!trex) {
1537 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1538 return -1;
1539 }
1540
1541 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1542 else frag->base_data_offset = frag->moof_offset;
1543 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1544 else frag->stsd_id = trex->stsd_id;
1545
1546 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1547 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1548 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1549 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1550 return 0;
1551}
1552
c3e92a6c 1553static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1554{
1555 MOVTrackExt *trex;
1556
1557 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1558 return -1;
0d8f0abf
BC
1559 trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1560 if (!trex)
61aedb0f 1561 return AVERROR(ENOMEM);
0d8f0abf 1562 c->trex_data = trex;
61aedb0f
BC
1563 trex = &c->trex_data[c->trex_count++];
1564 get_byte(pb); /* version */
1565 get_be24(pb); /* flags */
1566 trex->track_id = get_be32(pb);
1567 trex->stsd_id = get_be32(pb);
1568 trex->duration = get_be32(pb);
1569 trex->size = get_be32(pb);
1570 trex->flags = get_be32(pb);
1571 return 0;
1572}
1573
c3e92a6c 1574static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1575{
1576 MOVFragment *frag = &c->fragment;
63581eb1 1577 AVStream *st = NULL;
44e43aab 1578 MOVStreamContext *sc;
61aedb0f
BC
1579 uint64_t offset;
1580 int64_t dts;
1581 int data_offset = 0;
1582 unsigned entries, first_sample_flags = frag->flags;
1583 int flags, distance, i;
1584
63581eb1
AC
1585 for (i = 0; i < c->fc->nb_streams; i++) {
1586 if (c->fc->streams[i]->id == frag->track_id) {
1587 st = c->fc->streams[i];
1588 break;
1589 }
1590 }
1591 if (!st) {
1592 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
44e43aab 1593 return -1;
63581eb1 1594 }
44e43aab 1595 sc = st->priv_data;
61aedb0f
BC
1596 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1597 return 0;
61aedb0f
BC
1598 get_byte(pb); /* version */
1599 flags = get_be24(pb);
1600 entries = get_be32(pb);
1601 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1602 if (flags & 0x001) data_offset = get_be32(pb);
1603 if (flags & 0x004) first_sample_flags = get_be32(pb);
1604 if (flags & 0x800) {
0d8f0abf 1605 MOVStts *ctts_data;
61aedb0f
BC
1606 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1607 return -1;
0d8f0abf
BC
1608 ctts_data = av_realloc(sc->ctts_data,
1609 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1610 if (!ctts_data)
61aedb0f 1611 return AVERROR(ENOMEM);
0d8f0abf 1612 sc->ctts_data = ctts_data;
61aedb0f
BC
1613 }
1614 dts = st->duration;
1615 offset = frag->base_data_offset + data_offset;
1616 distance = 0;
1617 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1618 for (i = 0; i < entries; i++) {
1619 unsigned sample_size = frag->size;
1620 int sample_flags = i ? frag->flags : first_sample_flags;
1621 unsigned sample_duration = frag->duration;
1622 int keyframe;
1623
1624 if (flags & 0x100) sample_duration = get_be32(pb);
1625 if (flags & 0x200) sample_size = get_be32(pb);
1626 if (flags & 0x400) sample_flags = get_be32(pb);
1627 if (flags & 0x800) {
1628 sc->ctts_data[sc->ctts_count].count = 1;
1629 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1630 sc->ctts_count++;
1631 }
1632 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1633 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1634 distance = 0;
1635 av_add_index_entry(st, offset, dts, sample_size, distance,
1636 keyframe ? AVINDEX_KEYFRAME : 0);
1637 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1638 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1639 offset, dts, sample_size, distance, keyframe);
1640 distance++;
1641 assert(sample_duration % sc->time_rate == 0);
1642 dts += sample_duration / sc->time_rate;
1643 offset += sample_size;
1644 }
1645 frag->moof_offset = offset;
61aedb0f
BC
1646 st->duration = dts;
1647 return 0;
1648}
1649
5ca1d879
ZK
1650/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1651/* like the files created with Adobe Premiere 5.0, for samples see */
1652/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
c3e92a6c 1653static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1654{
1655 int err;
5ca1d879 1656
5ca1d879
ZK
1657 if (atom.size < 8)
1658 return 0; /* continue */
1659 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1660 url_fskip(pb, atom.size - 4);
1661 return 0;
1662 }
1663 atom.type = get_le32(pb);
1664 atom.offset += 8;
1665 atom.size -= 8;
1c126b4f 1666 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
1667 url_fskip(pb, atom.size);
1668 return 0;
1669 }
1670 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1671 return err;
1672}
1673
c3e92a6c 1674static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 1675{
b250f9c6 1676#if CONFIG_ZLIB
0147f198 1677 ByteIOContext ctx;
b6a17df4
ZK
1678 uint8_t *cmov_data;
1679 uint8_t *moov_data; /* uncompressed data */
0147f198 1680 long cmov_len, moov_len;
6f04eb1e 1681 int ret = -1;
b6a17df4 1682
0147f198 1683 get_be32(pb); /* dcom atom */
1c126b4f 1684 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 1685 return -1;
1c126b4f 1686 if (get_le32(pb) != MKTAG('z','l','i','b')) {
f3592353 1687 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1688 return -1;
1689 }
1690 get_be32(pb); /* cmvd atom */
1c126b4f 1691 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
1692 return -1;
1693 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1694 cmov_len = atom.size - 6 * 4;
5cd62665 1695
9a630c25 1696 cmov_data = av_malloc(cmov_len);
0147f198 1697 if (!cmov_data)
0d8f0abf 1698 return AVERROR(ENOMEM);
9a630c25 1699 moov_data = av_malloc(moov_len);
0147f198
FR
1700 if (!moov_data) {
1701 av_free(cmov_data);
0d8f0abf 1702 return AVERROR(ENOMEM);
0147f198
FR
1703 }
1704 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1705 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 1706 goto free_and_return;
942f3bb5 1707 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 1708 goto free_and_return;
1c126b4f 1709 atom.type = MKTAG('m','o','o','v');
5ca1d879
ZK
1710 atom.offset = 0;
1711 atom.size = moov_len;
9ed83b0a 1712#ifdef DEBUG
dbb4f00a 1713// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1714#endif
5ca1d879 1715 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 1716free_and_return:
0147f198
FR
1717 av_free(moov_data);
1718 av_free(cmov_data);
1719 return ret;
d966b2f0
BC
1720#else
1721 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1722 return -1;
0147f198 1723#endif
d966b2f0 1724}
0147f198 1725
baf25c9d 1726/* edit list atom */
c3e92a6c 1727static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
baf25c9d 1728{
7c622eed 1729 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1730 int i, edit_count;
1731
1732 get_byte(pb); /* version */
23f08617 1733 get_be24(pb); /* flags */
1975c52c 1734 edit_count = get_be32(pb); /* entries */
e0977c80
BC
1735
1736 for(i=0; i<edit_count; i++){
d435e520 1737 int time;
e0977c80 1738 get_be32(pb); /* Track duration */
d435e520 1739 time = get_be32(pb); /* Media time */
e0977c80 1740 get_be32(pb); /* Media rate */
a5929abe 1741 if (i == 0 && time != -1) {
baf2ffd3 1742 sc->time_offset = time;
a5929abe
BC
1743 sc->time_rate = av_gcd(sc->time_rate, time);
1744 }
e0977c80 1745 }
baf2ffd3
BC
1746
1747 if(edit_count > 1)
1748 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
1749 "a/v desync might occur, patch welcome\n");
1750
4c125b8f 1751 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
e0977c80 1752 return 0;
baf25c9d
GC
1753}
1754
6cea494e 1755static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 1756{ MKTAG('a','v','s','s'), mov_read_extradata },
1c126b4f
BC
1757{ MKTAG('c','o','6','4'), mov_read_stco },
1758{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1759{ MKTAG('d','i','n','f'), mov_read_default },
1760{ MKTAG('d','r','e','f'), mov_read_dref },
1761{ MKTAG('e','d','t','s'), mov_read_default },
1762{ MKTAG('e','l','s','t'), mov_read_elst },
1763{ MKTAG('e','n','d','a'), mov_read_enda },
1764{ MKTAG('f','i','e','l'), mov_read_extradata },
1765{ MKTAG('f','t','y','p'), mov_read_ftyp },
1766{ MKTAG('g','l','b','l'), mov_read_glbl },
1767{ MKTAG('h','d','l','r'), mov_read_hdlr },
51c15201 1768{ MKTAG('i','l','s','t'), mov_read_ilst },
1c126b4f
BC
1769{ MKTAG('j','p','2','h'), mov_read_extradata },
1770{ MKTAG('m','d','a','t'), mov_read_mdat },
1771{ MKTAG('m','d','h','d'), mov_read_mdhd },
1772{ MKTAG('m','d','i','a'), mov_read_default },
51c15201 1773{ MKTAG('m','e','t','a'), mov_read_meta },
1c126b4f
BC
1774{ MKTAG('m','i','n','f'), mov_read_default },
1775{ MKTAG('m','o','o','f'), mov_read_moof },
1776{ MKTAG('m','o','o','v'), mov_read_moov },
1777{ MKTAG('m','v','e','x'), mov_read_default },
1778{ MKTAG('m','v','h','d'), mov_read_mvhd },
1779{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1780{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1781{ MKTAG('a','v','c','C'), mov_read_glbl },
6da54074 1782{ MKTAG('p','a','s','p'), mov_read_pasp },
1c126b4f
BC
1783{ MKTAG('s','t','b','l'), mov_read_default },
1784{ MKTAG('s','t','c','o'), mov_read_stco },
1785{ MKTAG('s','t','s','c'), mov_read_stsc },
1786{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1787{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1788{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1789{ MKTAG('s','t','t','s'), mov_read_stts },
1790{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1791{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1792{ MKTAG('t','r','a','k'), mov_read_trak },
1793{ MKTAG('t','r','a','f'), mov_read_default },
1794{ MKTAG('t','r','e','x'), mov_read_trex },
51c15201 1795{ MKTAG('t','r','k','n'), mov_read_trkn },
1c126b4f 1796{ MKTAG('t','r','u','n'), mov_read_trun },
86b0affd 1797{ MKTAG('u','d','t','a'), mov_read_default },
1c126b4f
BC
1798{ MKTAG('w','a','v','e'), mov_read_wave },
1799{ MKTAG('e','s','d','s'), mov_read_esds },
1800{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1801{ MKTAG('c','m','o','v'), mov_read_cmov },
bcfe2ba0 1802{ 0, NULL }
6cea494e
ZK
1803};
1804
c9a65ca8
FB
1805static int mov_probe(AVProbeData *p)
1806{
0e7eed09
FB
1807 unsigned int offset;
1808 uint32_t tag;
2497479f 1809 int score = 0;
3ffe3793 1810
c9a65ca8 1811 /* check file header */
0e7eed09
FB
1812 offset = 0;
1813 for(;;) {
1814 /* ignore invalid offset */
1815 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1816 return score;
fead30d4 1817 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1818 switch(tag) {
2497479f 1819 /* check for obvious tags */
1c126b4f
BC
1820 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
1821 case MKTAG('m','o','o','v'):
1822 case MKTAG('m','d','a','t'):
1823 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
1824 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 1825 case MKTAG('f','t','y','p'):
3ffe3793 1826 return AVPROBE_SCORE_MAX;
2497479f 1827 /* those are more common words, so rate then a bit less */
1c126b4f
BC
1828 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
1829 case MKTAG('w','i','d','e'):
1830 case MKTAG('f','r','e','e'):
1831 case MKTAG('j','u','n','k'):
1832 case MKTAG('p','i','c','t'):
2497479f 1833 return AVPROBE_SCORE_MAX - 5;
5469b788 1834 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
1835 case MKTAG('s','k','i','p'):
1836 case MKTAG('u','u','i','d'):
1837 case MKTAG('p','r','f','l'):
fead30d4 1838 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1839 /* if we only find those cause probedata is too small at least rate them */
1840 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1841 break;
1842 default:
1843 /* unrecognized tag */
2497479f 1844 return score;
0e7eed09 1845 }
3ffe3793 1846 }
2497479f 1847 return score;
c9a65ca8
FB
1848}
1849
a266644f 1850static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1851{
e4141433 1852 MOVContext *mov = s->priv_data;
899681cd 1853 ByteIOContext *pb = s->pb;
f9900374 1854 int err;
c3e92a6c 1855 MOVAtom atom = { 0, 0, 0 };
6cea494e 1856
6cea494e 1857 mov->fc = s;
117a9190
BC
1858 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1859 if(!url_is_streamed(pb))
bb270c08 1860 atom.size = url_fsize(pb);
6cea494e 1861 else
fa22ca22 1862 atom.size = INT64_MAX;
6cea494e 1863
6cea494e 1864 /* check MOV header */
612b5cbb
BC
1865 if ((err = mov_read_default(mov, pb, atom)) < 0) {
1866 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1867 return err;
1868 }
1869 if (!mov->found_moov) {
1870 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 1871 return -1;
6cea494e 1872 }
0265fe81 1873 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 1874
6cea494e
ZK
1875 return 0;
1876}
1877
a266644f 1878static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1879{
b72708f8
BC
1880 MOVContext *mov = s->priv_data;
1881 MOVStreamContext *sc = 0;
1882 AVIndexEntry *sample = 0;
86d8602f 1883 int64_t best_dts = INT64_MAX;
bc64cb96 1884 int i, ret;
433aeb62 1885 retry:
11f16b66 1886 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1887 AVStream *st = s->streams[i];
1888 MOVStreamContext *msc = st->priv_data;
f0f2218d 1889 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < st->nb_index_entries) {
7c622eed 1890 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1891 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1892 AV_TIME_BASE, msc->time_scale);
1c02d96f 1893 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1894 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1895 (!url_is_streamed(s->pb) &&
221e21b7 1896 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1897 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1898 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1899 sample = current_sample;
1900 best_dts = dts;
1901 sc = msc;
86d8602f 1902 }
6cea494e 1903 }
6cea494e 1904 }
433aeb62
BC
1905 if (!sample) {
1906 mov->found_mdat = 0;
1907 if (!url_is_streamed(s->pb) ||
c3e92a6c 1908 mov_read_default(mov, s->pb, (MOVAtom){ 0, 0, INT64_MAX }) < 0 ||
433aeb62
BC
1909 url_feof(s->pb))
1910 return -1;
1911 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1912 goto retry;
1913 }
b72708f8
BC
1914 /* must be done just before reading, to avoid infinite loop on sample */
1915 sc->current_sample++;
221e21b7 1916 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1917 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1918 sc->ffindex, sample->pos);
bb270c08 1919 return -1;
6cea494e 1920 }
bc64cb96
BC
1921 ret = av_get_packet(sc->pb, pkt, sample->size);
1922 if (ret < 0)
1923 return ret;
b250f9c6 1924#if CONFIG_DV_DEMUXER
56ea717b
BC
1925 if (mov->dv_demux && sc->dv_audio_container) {
1926 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1927 av_free(pkt->data);
300aa2b0
BC
1928 pkt->size = 0;
1929 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1930 return -1;
56ea717b 1931 }
312954f0 1932#endif
b72708f8
BC
1933 pkt->stream_index = sc->ffindex;
1934 pkt->dts = sample->timestamp;
1935 if (sc->ctts_data) {
a234e38d
BC
1936 assert(sc->ctts_data[sc->ctts_index].duration % sc->time_rate == 0);
1937 pkt->pts = pkt->dts + sc->ctts_data[sc->ctts_index].duration / sc->time_rate;
b72708f8 1938 /* update ctts context */
a234e38d
BC
1939 sc->ctts_sample++;
1940 if (sc->ctts_index < sc->ctts_count &&
1941 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
1942 sc->ctts_index++;
1943 sc->ctts_sample = 0;
b565ea09 1944 }
0c5f76f7
BC
1945 if (sc->wrong_dts)
1946 pkt->dts = AV_NOPTS_VALUE;
b72708f8 1947 } else {
e8430214 1948 AVStream *st = s->streams[sc->ffindex];
f0f2218d 1949 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
e8430214
HG
1950 st->index_entries[sc->current_sample].timestamp : st->duration;
1951 pkt->duration = next_dts - pkt->dts;
b72708f8 1952 pkt->pts = pkt->dts;
b565ea09 1953 }
b72708f8
BC
1954 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1955 pkt->pos = sample->pos;
29c90869
BC
1956 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1957 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1958 return 0;
1959}
3ffe3793 1960
b72708f8
BC
1961static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1962{
1963 MOVStreamContext *sc = st->priv_data;
1964 int sample, time_sample;
1965 int i;
115329f1 1966
b72708f8 1967 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1968 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1969 if (sample < 0) /* not sure what to do */
1970 return -1;
1971 sc->current_sample = sample;
1c02d96f 1972 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1973 /* adjust ctts index */
1974 if (sc->ctts_data) {
1975 time_sample = 0;
1976 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1977 int next = time_sample + sc->ctts_data[i].count;
1978 if (next > sc->current_sample) {
a234e38d
BC
1979 sc->ctts_index = i;
1980 sc->ctts_sample = sc->current_sample - time_sample;
b72708f8 1981 break;
115329f1 1982 }
54a5c719 1983 time_sample = next;
247d56f5 1984 }
247d56f5 1985 }
b72708f8 1986 return sample;
6cea494e
ZK
1987}
1988
961e0ccd 1989static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1990{
b72708f8
BC
1991 AVStream *st;
1992 int64_t seek_timestamp, timestamp;
1993 int sample;
1994 int i;
baf25c9d 1995
b72708f8 1996 if (stream_index >= s->nb_streams)
baf25c9d 1997 return -1;
8dc81a45
BC
1998 if (sample_time < 0)
1999 sample_time = 0;
baf25c9d 2000
b72708f8
BC
2001 st = s->streams[stream_index];
2002 sample = mov_seek_stream(st, sample_time, flags);
2003 if (sample < 0)
baf25c9d 2004 return -1;
baf25c9d 2005
b72708f8
BC
2006 /* adjust seek timestamp to found sample timestamp */
2007 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 2008
b72708f8
BC
2009 for (i = 0; i < s->nb_streams; i++) {
2010 st = s->streams[i];
2011 if (stream_index == i || st->discard == AVDISCARD_ALL)
2012 continue;
baf25c9d 2013
b72708f8
BC
2014 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
2015 mov_seek_stream(st, timestamp, flags);
115329f1 2016 }
baf25c9d
GC
2017 return 0;
2018}
baf25c9d 2019
a266644f 2020static int mov_read_close(AVFormatContext *s)
6cea494e 2021{
e4141433 2022 MOVContext *mov = s->priv_data;
6c00a9de
BC
2023 int i, j;
2024
2025 for (i = 0; i < s->nb_streams; i++) {
e49da827
BC
2026 AVStream *st = s->streams[i];
2027 MOVStreamContext *sc = st->priv_data;
6c00a9de 2028
7c622eed 2029 av_freep(&sc->ctts_data);
6c00a9de 2030 for (j = 0; j < sc->drefs_count; j++)
221e21b7
BC
2031 av_freep(&sc->drefs[j].path);
2032 av_freep(&sc->drefs);
2033 if (sc->pb && sc->pb != s->pb)
2034 url_fclose(sc->pb);
e49da827
BC
2035
2036 av_freep(&st->codec->palctrl);
4440b118 2037 }
6c00a9de
BC
2038
2039 if (mov->dv_demux) {
2040 for(i = 0; i < mov->dv_fctx->nb_streams; i++) {
b60c0454
BC
2041 av_freep(&mov->dv_fctx->streams[i]->codec);
2042 av_freep(&mov->dv_fctx->streams[i]);
2043 }
2044 av_freep(&mov->dv_fctx);
2045 av_freep(&mov->dv_demux);
2046 }
6c00a9de 2047
61aedb0f 2048 av_freep(&mov->trex_data);
6c00a9de 2049
6cea494e
ZK
2050 return 0;
2051}
2052
ff70e601 2053AVInputFormat mov_demuxer = {
fc5188f3 2054 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 2055 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
2056 sizeof(MOVContext),
2057 mov_probe,
6cea494e
ZK
2058 mov_read_header,
2059 mov_read_packet,
2060 mov_read_close,
baf25c9d 2061 mov_read_seek,
6cea494e 2062};