AAC: IEEE-754 type punning for 16-bit floating point rounding.
[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
c6026e43
BC
82static int mov_metadata_trkn(MOVContext *c, ByteIOContext *pb, unsigned len)
83{
84 char buf[16];
85
86 get_be16(pb); // unknown
87 snprintf(buf, sizeof(buf), "%d", get_be16(pb));
88 av_metadata_set(&c->fc->metadata, "track", buf);
89
90 get_be16(pb); // total tracks
91
92 return 0;
93}
94
0fb44a4e
BC
95static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
96{
97#ifdef MOV_EXPORT_ALL_METADATA
98 char tmp_key[5];
99#endif
100 char str[1024], key2[16], language[4] = {0};
101 const char *key = NULL;
102 uint16_t str_size;
c6026e43 103 int (*parse)(MOVContext*, ByteIOContext*, unsigned) = NULL;
0fb44a4e
BC
104
105 switch (atom.type) {
106 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
107 case MKTAG(0xa9,'a','u','t'):
108 case MKTAG(0xa9,'A','R','T'):
109 case MKTAG(0xa9,'w','r','t'): key = "author"; break;
110 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
111 case MKTAG(0xa9,'c','m','t'):
112 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
113 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
114 case MKTAG(0xa9,'d','a','y'): key = "year"; break;
115 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
116 case MKTAG(0xa9,'t','o','o'):
117 case MKTAG(0xa9,'e','n','c'): key = "muxer"; break;
c6026e43
BC
118 case MKTAG( 't','r','k','n'): key = "track";
119 parse = mov_metadata_trkn; break;
0fb44a4e
BC
120 }
121
122 if (c->itunes_metadata && atom.size > 8) {
123 int data_size = get_be32(pb);
124 int tag = get_le32(pb);
125 if (tag == MKTAG('d','a','t','a')) {
126 get_be32(pb); // type
127 get_be32(pb); // unknown
128 str_size = data_size - 16;
129 atom.size -= 16;
130 } else return 0;
131 } else if (atom.size > 4 && key && !c->itunes_metadata) {
132 str_size = get_be16(pb); // string length
133 ff_mov_lang_to_iso639(get_be16(pb), language);
134 atom.size -= 4;
135 } else
136 str_size = atom.size;
137
138#ifdef MOV_EXPORT_ALL_METADATA
139 if (!key) {
140 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
141 key = tmp_key;
142 }
143#endif
144
145 if (!key)
146 return 0;
147 if (atom.size < 0)
148 return -1;
149
150 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
c6026e43
BC
151
152 if (parse)
153 parse(c, pb, str_size);
154 else {
f584386d
BC
155 get_buffer(pb, str, str_size);
156 str[str_size] = 0;
157 av_metadata_set(&c->fc->metadata, key, str);
158 if (*language && strcmp(language, "und")) {
159 snprintf(key2, sizeof(key2), "%s-%s", key, language);
160 av_metadata_set(&c->fc->metadata, key2, str);
161 }
c6026e43 162 }
0fb44a4e
BC
163#ifdef DEBUG_METADATA
164 av_log(c->fc, AV_LOG_DEBUG, "lang \"%3s\" ", language);
165 av_log(c->fc, AV_LOG_DEBUG, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %lld\n",
166 key, str, (char*)&atom.type, str_size, atom.size);
167#endif
168
169 return 0;
170}
873358e5 171
c3e92a6c 172static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 173{
b6a17df4 174 int64_t total_size = 0;
c3e92a6c 175 MOVAtom a;
6cea494e
ZK
176 int i;
177 int err = 0;
5ca1d879 178
5ca1d879 179 a.offset = atom.offset;
6cea494e 180
9ed83b0a 181 if (atom.size < 0)
fa22ca22 182 atom.size = INT64_MAX;
5ca1d879 183 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
873358e5 184 int (*parse)(MOVContext*, ByteIOContext*, MOVAtom) = NULL;
bb270c08 185 a.size = atom.size;
bcfe2ba0 186 a.type=0;
5ca1d879 187 if(atom.size >= 8) {
bb270c08 188 a.size = get_be32(pb);
5ca1d879 189 a.type = get_le32(pb);
6cea494e 190 }
bb270c08 191 total_size += 8;
5ca1d879 192 a.offset += 8;
29c90869
BC
193 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
194 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 195 if (a.size == 1) { /* 64 bit extended size */
bb270c08 196 a.size = get_be64(pb) - 8;
5ca1d879
ZK
197 a.offset += 8;
198 total_size += 8;
6cea494e 199 }
bb270c08
DB
200 if (a.size == 0) {
201 a.size = atom.size - total_size;
202 if (a.size <= 8)
5cd62665 203 break;
bb270c08 204 }
bb270c08 205 a.size -= 8;
8622613d 206 if(a.size < 0)
568e18b1 207 break;
3d2308b0 208 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 209
873358e5
BC
210 for (i = 0; mov_default_parse_table[i].type; i++)
211 if (mov_default_parse_table[i].type == a.type) {
212 parse = mov_default_parse_table[i].parse;
213 break;
214 }
11979c46 215
873358e5
BC
216 // container is user data
217 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
218 atom.type == MKTAG('i','l','s','t')))
219 parse = mov_read_udta_string;
220
221 if (!parse) { /* skip leaf atoms data */
5ca1d879 222 url_fskip(pb, a.size);
bb270c08 223 } else {
bc5c918e 224 int64_t start_pos = url_ftell(pb);
5c72cad8 225 int64_t left;
873358e5 226 err = parse(c, pb, a);
db3ee6cc 227 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
687f35f3 228 break;
5c72cad8
BC
229 left = a.size - url_ftell(pb) + start_pos;
230 if (left > 0) /* skip garbage at atom end */
231 url_fskip(pb, left);
bb270c08 232 }
6cea494e 233
bb270c08 234 a.offset += a.size;
5ca1d879 235 total_size += a.size;
6cea494e
ZK
236 }
237
9ce84dd8 238 if (!err && total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 239 url_fskip(pb, atom.size - total_size);
5cd62665 240
6cea494e
ZK
241 return err;
242}
243
c3e92a6c 244static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
221e21b7
BC
245{
246 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
247 MOVStreamContext *sc = st->priv_data;
248 int entries, i, j;
249
250 get_be32(pb); // version + flags
251 entries = get_be32(pb);
252 if (entries >= UINT_MAX / sizeof(*sc->drefs))
253 return -1;
221e21b7 254 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
0d8f0abf
BC
255 if (!sc->drefs)
256 return AVERROR(ENOMEM);
257 sc->drefs_count = entries;
221e21b7
BC
258
259 for (i = 0; i < sc->drefs_count; i++) {
c3e92a6c 260 MOVDref *dref = &sc->drefs[i];
221e21b7 261 uint32_t size = get_be32(pb);
bc5c918e 262 int64_t next = url_ftell(pb) + size - 4;
221e21b7
BC
263
264 dref->type = get_le32(pb);
265 get_be32(pb); // version + flags
266 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
267
268 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
269 /* macintosh alias record */
270 uint16_t volume_len, len;
271 char volume[28];
272 int16_t type;
273
274 url_fskip(pb, 10);
275
276 volume_len = get_byte(pb);
277 volume_len = FFMIN(volume_len, 27);
278 get_buffer(pb, volume, 27);
279 volume[volume_len] = 0;
280 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
281
282 url_fskip(pb, 112);
283
284 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
285 type = get_be16(pb);
286 len = get_be16(pb);
287 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
288 if (len&1)
289 len += 1;
290 if (type == 2) { // absolute path
dbb37657 291 av_free(dref->path);
221e21b7 292 dref->path = av_mallocz(len+1);
2f4568e5
BC
293 if (!dref->path)
294 return AVERROR(ENOMEM);
221e21b7 295 get_buffer(pb, dref->path, len);
dbb7cbf2 296 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
297 len -= volume_len;
298 memmove(dref->path, dref->path+volume_len, len);
299 dref->path[len] = 0;
300 }
301 for (j = 0; j < len; j++)
302 if (dref->path[j] == ':')
303 dref->path[j] = '/';
304 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
305 } else
306 url_fskip(pb, len);
307 }
308 }
309 url_fseek(pb, next, SEEK_SET);
310 }
311 return 0;
312}
313
c3e92a6c 314static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 315{
fefe43ff 316 AVStream *st;
0c1a9eda 317 uint32_t type;
0c1a9eda 318 uint32_t ctype;
b6a17df4 319
fefe43ff
AC
320 if (c->fc->nb_streams < 1) // meta before first trak
321 return 0;
322
323 st = c->fc->streams[c->fc->nb_streams-1];
324
6cea494e 325 get_byte(pb); /* version */
23f08617 326 get_be24(pb); /* flags */
6cea494e
ZK
327
328 /* component type */
329 ctype = get_le32(pb);
330 type = get_le32(pb); /* component subtype */
331
9bf1b268
BC
332 dprintf(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
333 dprintf(c->fc, "stype= %.4s\n", (char*)&type);
2229a5c6 334
37ffe34b 335 if (type == MKTAG('v','i','d','e'))
73920f07 336 st->codec->codec_type = CODEC_TYPE_VIDEO;
1c126b4f 337 else if(type == MKTAG('s','o','u','n'))
73920f07 338 st->codec->codec_type = CODEC_TYPE_AUDIO;
1c126b4f 339 else if(type == MKTAG('m','1','a',' '))
95a07973 340 st->codec->codec_id = CODEC_ID_MP2;
f05783c2 341 else if(type == MKTAG('s','u','b','p'))
8cb97693 342 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
f05783c2 343
6cea494e
ZK
344 get_be32(pb); /* component manufacture */
345 get_be32(pb); /* component flags */
346 get_be32(pb); /* component flags mask */
347
5ca1d879 348 if(atom.size <= 24)
6cea494e 349 return 0; /* nothing left to read */
5cd62665 350
3c13647a 351 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
352 return 0;
353}
354
9e40addd 355static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 356{
5cd62665 357 int len = 0;
5ca1d879
ZK
358 int count = 4;
359 while (count--) {
5cd62665 360 int c = get_byte(pb);
bb270c08
DB
361 len = (len << 7) | (c & 0x7f);
362 if (!(c & 0x80))
363 break;
0e7eed09
FB
364 }
365 return len;
366}
367
9e40addd 368static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
369{
370 int len;
371 *tag = get_byte(pb);
9e40addd 372 len = mp4_read_descr_len(pb);
318c5e05 373 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
374 return len;
375}
376
0b07ac42
BC
377#define MP4ESDescrTag 0x03
378#define MP4DecConfigDescrTag 0x04
379#define MP4DecSpecificDescrTag 0x05
380
1dec3994
BC
381static const AVCodecTag mp4_audio_types[] = {
382 { CODEC_ID_MP3ON4, 29 }, /* old mp3on4 draft */
383 { CODEC_ID_MP3ON4, 32 }, /* layer 1 */
384 { CODEC_ID_MP3ON4, 33 }, /* layer 2 */
385 { CODEC_ID_MP3ON4, 34 }, /* layer 3 */
386 { CODEC_ID_NONE, 0 },
387};
388
c3e92a6c 389static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5cd62665 390{
5cd62665 391 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 392 int tag, len;
b6a17df4 393
5cd62665 394 get_be32(pb); /* version + flags */
9e40addd 395 len = mp4_read_descr(c, pb, &tag);
5cd62665 396 if (tag == MP4ESDescrTag) {
bb270c08
DB
397 get_be16(pb); /* ID */
398 get_byte(pb); /* priority */
5cd62665 399 } else
bb270c08 400 get_be16(pb); /* ID */
5cd62665 401
9e40addd 402 len = mp4_read_descr(c, pb, &tag);
5cd62665 403 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
404 int object_type_id = get_byte(pb);
405 get_byte(pb); /* stream type */
406 get_be24(pb); /* buffer size db */
407 get_be32(pb); /* max bitrate */
408 get_be32(pb); /* avg bitrate */
409
410 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
411 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 412 len = mp4_read_descr(c, pb, &tag);
bb270c08 413 if (tag == MP4DecSpecificDescrTag) {
318c5e05 414 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
415 if((uint64_t)len > (1<<30))
416 return -1;
9a630c25 417 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
418 if (!st->codec->extradata)
419 return AVERROR(ENOMEM);
17871a02
BC
420 get_buffer(pb, st->codec->extradata, len);
421 st->codec->extradata_size = len;
1dec3994
BC
422 if (st->codec->codec_id == CODEC_ID_AAC) {
423 MPEG4AudioConfig cfg;
424 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
425 st->codec->extradata_size);
391872e4 426 if (cfg.chan_config > 7)
45a97d30
BC
427 return -1;
428 st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
429 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
430 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
431 else
432 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
433 dprintf(c->fc, "mp4a config channels %d obj %d ext obj %d "
434 "sample rate %d ext sample rate %d\n", st->codec->channels,
435 cfg.object_type, cfg.ext_object_type,
436 cfg.sample_rate, cfg.ext_sample_rate);
1dec3994
BC
437 if (!(st->codec->codec_id = codec_get_id(mp4_audio_types,
438 cfg.object_type)))
439 st->codec->codec_id = CODEC_ID_AAC;
17871a02 440 }
bb270c08 441 }
5cd62665 442 }
5cd62665
ZK
443 return 0;
444}
445
6da54074
BC
446static int mov_read_pasp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
447{
448 const int num = get_be32(pb);
449 const int den = get_be32(pb);
450 AVStream * const st = c->fc->streams[c->fc->nb_streams-1];
451 if (den != 0) {
f53ee312
BC
452 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
453 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num))
6da54074 454 av_log(c->fc, AV_LOG_WARNING,
f53ee312
BC
455 "sample aspect ratio already set to %d:%d, overriding by 'pasp' atom\n",
456 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
6da54074
BC
457 st->sample_aspect_ratio.num = num;
458 st->sample_aspect_ratio.den = den;
459 }
460 return 0;
461}
462
5ca1d879 463/* this atom contains actual media data */
c3e92a6c 464static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 465{
5ca1d879
ZK
466 if(atom.size == 0) /* wrong one (MP4) */
467 return 0;
468 c->found_mdat=1;
5ca1d879
ZK
469 return 0; /* now go for moov */
470}
471
c3e92a6c 472static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
4ea28253
BC
473{
474 uint32_t type = get_le32(pb);
475
152e9a43
BC
476 if (type != MKTAG('q','t',' ',' '))
477 c->isom = 1;
a512446e 478 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
479 get_be32(pb); /* minor version */
480 url_fskip(pb, atom.size - 8);
481 return 0;
482}
483
5ca1d879 484/* this atom should contain all header atoms */
c3e92a6c 485static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 486{
9cf0419b
PI
487 if (mov_read_default(c, pb, atom) < 0)
488 return -1;
5ca1d879
ZK
489 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
490 /* so we don't parse the whole file if over a network */
491 c->found_moov=1;
5ca1d879
ZK
492 return 0; /* now go for mdat */
493}
494
c3e92a6c 495static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
496{
497 c->fragment.moof_offset = url_ftell(pb) - 8;
498 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
499 return mov_read_default(c, pb, atom);
500}
5ca1d879 501
c3e92a6c 502static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 503{
f444b977 504 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 505 MOVStreamContext *sc = st->priv_data;
f444b977 506 int version = get_byte(pb);
49674dd0 507 char language[4] = {0};
dce25564 508 unsigned lang;
5ca1d879 509
b9a87c4d 510 if (version > 1)
7e627332 511 return -1; /* unsupported */
5ca1d879 512
23f08617 513 get_be24(pb); /* flags */
f444b977
BC
514 if (version == 1) {
515 get_be64(pb);
516 get_be64(pb);
517 } else {
518 get_be32(pb); /* creation time */
519 get_be32(pb); /* modification time */
520 }
5ca1d879 521
f444b977
BC
522 sc->time_scale = get_be32(pb);
523 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 524
b9a87c4d 525 lang = get_be16(pb); /* language */
49674dd0
AJ
526 if (ff_mov_lang_to_iso639(lang, language))
527 av_metadata_set(&st->metadata, "language", language);
5ca1d879
ZK
528 get_be16(pb); /* quality */
529
530 return 0;
531}
532
c3e92a6c 533static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 534{
1175561e 535 int version = get_byte(pb); /* version */
23f08617 536 get_be24(pb); /* flags */
5ca1d879 537
1175561e
BC
538 if (version == 1) {
539 get_be64(pb);
540 get_be64(pb);
541 } else {
542 get_be32(pb); /* creation time */
543 get_be32(pb); /* modification time */
544 }
5ca1d879 545 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
546
547 dprintf(c->fc, "time scale = %i\n", c->time_scale);
548
1175561e 549 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
550 get_be32(pb); /* preferred scale */
551
552 get_be16(pb); /* preferred volume */
553
554 url_fskip(pb, 10); /* reserved */
555
556 url_fskip(pb, 36); /* display matrix */
557
558 get_be32(pb); /* preview time */
559 get_be32(pb); /* preview duration */
560 get_be32(pb); /* poster time */
561 get_be32(pb); /* selection time */
562 get_be32(pb); /* selection duration */
563 get_be32(pb); /* current time */
564 get_be32(pb); /* next track ID */
565
566 return 0;
567}
568
c3e92a6c 569static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
9ed83b0a
ZK
570{
571 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
572
568e18b1
MN
573 if((uint64_t)atom.size > (1<<30))
574 return -1;
115329f1 575
9ed83b0a
ZK
576 // currently SVQ3 decoder expect full STSD header - so let's fake it
577 // this should be fixed and just SMI header should be passed
01f4895c 578 av_free(st->codec->extradata);
b014dd76
BC
579 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
580 if (!st->codec->extradata)
581 return AVERROR(ENOMEM);
17871a02
BC
582 st->codec->extradata_size = 0x5a + atom.size;
583 memcpy(st->codec->extradata, "SVQ3", 4); // fake
584 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
585 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
586 return 0;
587}
5ca1d879 588
c3e92a6c 589static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234
BC
590{
591 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
592 int little_endian = get_be16(pb);
593
fa50a027
BC
594 dprintf(c->fc, "enda %d\n", little_endian);
595 if (little_endian == 1) {
de23f234
BC
596 switch (st->codec->codec_id) {
597 case CODEC_ID_PCM_S24BE:
598 st->codec->codec_id = CODEC_ID_PCM_S24LE;
599 break;
600 case CODEC_ID_PCM_S32BE:
601 st->codec->codec_id = CODEC_ID_PCM_S32LE;
602 break;
a1ef2c4b
PR
603 case CODEC_ID_PCM_F32BE:
604 st->codec->codec_id = CODEC_ID_PCM_F32LE;
605 break;
606 case CODEC_ID_PCM_F64BE:
607 st->codec->codec_id = CODEC_ID_PCM_F64LE;
608 break;
de23f234
BC
609 default:
610 break;
611 }
612 }
613 return 0;
614}
615
014a5102 616/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
c3e92a6c 617static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234 618{
27134437
BC
619 AVStream *st;
620 uint64_t size;
68bc33fa 621 uint8_t *buf;
27134437
BC
622
623 if (c->fc->nb_streams < 1) // will happen with jp2 files
624 return 0;
625 st= c->fc->streams[c->fc->nb_streams-1];
626 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
68bc33fa 627 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 628 return -1;
68bc33fa
BC
629 buf= av_realloc(st->codec->extradata, size);
630 if(!buf)
631 return -1;
632 st->codec->extradata= buf;
633 buf+= st->codec->extradata_size;
634 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
635 AV_WB32( buf , atom.size + 8);
636 AV_WL32( buf + 4, atom.type);
637 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
638 return 0;
639}
640
c3e92a6c 641static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
d9b1c197
RT
642{
643 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
644
645 if((uint64_t)atom.size > (1<<30))
646 return -1;
115329f1 647
3840147e
MN
648 if (st->codec->codec_id == CODEC_ID_QDM2) {
649 // pass all frma atom to codec, needed at least for QDM2
650 av_free(st->codec->extradata);
b014dd76
BC
651 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
652 if (!st->codec->extradata)
653 return AVERROR(ENOMEM);
3840147e 654 st->codec->extradata_size = atom.size;
b014dd76 655 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 656 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
657 if (mov_read_default(c, pb, atom) < 0)
658 return -1;
5c72cad8 659 } else
bb270c08 660 url_fskip(pb, atom.size);
d9b1c197
RT
661 return 0;
662}
663
bde24601
BC
664/**
665 * This function reads atom content and puts data in extradata without tag
666 * nor size unlike mov_read_extradata.
667 */
c3e92a6c 668static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
169eb021
MM
669{
670 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
671
568e18b1
MN
672 if((uint64_t)atom.size > (1<<30))
673 return -1;
674
01f4895c 675 av_free(st->codec->extradata);
b014dd76
BC
676 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
677 if (!st->codec->extradata)
678 return AVERROR(ENOMEM);
01f4895c 679 st->codec->extradata_size = atom.size;
b014dd76 680 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
681 return 0;
682}
683
c3e92a6c 684static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
685{
686 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 687 MOVStreamContext *sc = st->priv_data;
568e18b1 688 unsigned int i, entries;
5ca1d879 689
5ca1d879 690 get_byte(pb); /* version */
23f08617 691 get_be24(pb); /* flags */
5ca1d879
ZK
692
693 entries = get_be32(pb);
115329f1 694
568e18b1
MN
695 if(entries >= UINT_MAX/sizeof(int64_t))
696 return -1;
115329f1 697
9a630c25 698 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879 699 if (!sc->chunk_offsets)
0d8f0abf
BC
700 return AVERROR(ENOMEM);
701 sc->chunk_count = entries;
702
37ffe34b
BC
703 if (atom.type == MKTAG('s','t','c','o'))
704 for(i=0; i<entries; i++)
5ca1d879 705 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
706 else if (atom.type == MKTAG('c','o','6','4'))
707 for(i=0; i<entries; i++)
5ca1d879 708 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 709 else
5ca1d879 710 return -1;
115329f1 711
5ca1d879
ZK
712 return 0;
713}
714
2288834f
BC
715/**
716 * Compute codec id for 'lpcm' tag.
717 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
718 */
fb65d2ca 719static enum CodecID mov_get_lpcm_codec_id(int bps, int flags)
2288834f
BC
720{
721 if (flags & 1) { // floating point
722 if (flags & 2) { // big endian
723 if (bps == 32) return CODEC_ID_PCM_F32BE;
7e4b3fb8 724 else if (bps == 64) return CODEC_ID_PCM_F64BE;
2288834f 725 } else {
7e4b3fb8
BC
726 if (bps == 32) return CODEC_ID_PCM_F32LE;
727 else if (bps == 64) return CODEC_ID_PCM_F64LE;
2288834f
BC
728 }
729 } else {
730 if (flags & 2) {
731 if (bps == 8)
732 // signed integer
733 if (flags & 4) return CODEC_ID_PCM_S8;
734 else return CODEC_ID_PCM_U8;
735 else if (bps == 16) return CODEC_ID_PCM_S16BE;
736 else if (bps == 24) return CODEC_ID_PCM_S24BE;
737 else if (bps == 32) return CODEC_ID_PCM_S32BE;
738 } else {
739 if (bps == 8)
740 if (flags & 4) return CODEC_ID_PCM_S8;
741 else return CODEC_ID_PCM_U8;
021b8ae3 742 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
743 else if (bps == 24) return CODEC_ID_PCM_S24LE;
744 else if (bps == 32) return CODEC_ID_PCM_S32LE;
745 }
746 }
fb65d2ca 747 return CODEC_ID_NONE;
2288834f
BC
748}
749
c3e92a6c 750static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
751{
752 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 753 MOVStreamContext *sc = st->priv_data;
baf9fb32 754 int j, entries, pseudo_stream_id;
b595afaa 755
6cea494e 756 get_byte(pb); /* version */
23f08617 757 get_be24(pb); /* flags */
6cea494e 758
6cea494e
ZK
759 entries = get_be32(pb);
760
117a9190
BC
761 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
762 //Parsing Sample description table
b6a17df4 763 enum CodecID id;
221e21b7 764 int dref_id;
c3e92a6c 765 MOVAtom a = { 0, 0, 0 };
bc5c918e 766 int64_t start_pos = url_ftell(pb);
bb270c08 767 int size = get_be32(pb); /* size */
baf9fb32 768 uint32_t format = get_le32(pb); /* data format */
5cd62665 769
6cea494e
ZK
770 get_be32(pb); /* reserved */
771 get_be16(pb); /* reserved */
221e21b7 772 dref_id = get_be16(pb);
0e7eed09 773
744a9c75 774 if (st->codec->codec_tag &&
978677a7 775 st->codec->codec_tag != format &&
744a9c75 776 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 777 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 778 ){
7ce68923
DB
779 /* Multiple fourcc, we skip JPEG. This is not correct, we should
780 * export it as a separate AVStream but this needs a few changes
781 * in the MOV demuxer, patch welcome. */
285a3da9 782 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
783 url_fskip(pb, size - (url_ftell(pb) - start_pos));
784 continue;
785 }
978677a7 786 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 787 sc->dref_id= dref_id;
e7cc4b52 788
bb270c08 789 st->codec->codec_tag = format;
1e5f5e3b 790 id = codec_get_id(codec_movaudio_tags, format);
1c126b4f 791 if (id<=0 && (format&0xFFFF) == 'm'+('s'<<8))
bca7db35
MN
792 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
793
48855b26 794 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 795 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26 796 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 797 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1e5f5e3b 798 id = codec_get_id(codec_movvideo_tags, format);
99487f42 799 if (id <= 0)
de23f234 800 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
801 if (id > 0)
802 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
803 else if(st->codec->codec_type == CODEC_TYPE_DATA){
804 id = codec_get_id(ff_codec_movsubtitle_tags, format);
805 if(id > 0)
806 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
807 }
99487f42
BC
808 }
809
29c90869
BC
810 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
811 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
812 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 813
99487f42 814 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
baf9fb32
BC
815 uint8_t codec_name[32];
816 unsigned int color_depth;
817 int color_greyscale;
baf9fb32 818
01f4895c 819 st->codec->codec_id = id;
6cea494e
ZK
820 get_be16(pb); /* version */
821 get_be16(pb); /* revision level */
822 get_be32(pb); /* vendor */
823 get_be32(pb); /* temporal quality */
94472c1d 824 get_be32(pb); /* spatial quality */
3cb4ee51
BC
825
826 st->codec->width = get_be16(pb); /* width */
827 st->codec->height = get_be16(pb); /* height */
828
6cea494e
ZK
829 get_be32(pb); /* horiz resolution */
830 get_be32(pb); /* vert resolution */
831 get_be32(pb); /* data size, always 0 */
43612ffe 832 get_be16(pb); /* frames per samples */
f8c18cd7 833
eb034aca 834 get_buffer(pb, codec_name, 32); /* codec name, pascal string */
576f1445
BC
835 if (codec_name[0] <= 31) {
836 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
837 st->codec->codec_name[codec_name[0]] = 0;
838 }
5cd62665 839
dd1c8f3e 840 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
01f4895c 841 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f 842 dprintf(c->fc, "depth %d, ctab id %d\n",
dd1c8f3e 843 st->codec->bits_per_coded_sample, st->codec->color_table_id);
b595afaa 844 /* figure out the palette situation */
dd1c8f3e
LA
845 color_depth = st->codec->bits_per_coded_sample & 0x1F;
846 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
b595afaa
MM
847
848 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 849 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 850 (color_depth == 8)) {
47e1d7ef
BC
851 /* for palette traversal */
852 unsigned int color_start, color_count, color_end;
853 unsigned char r, g, b;
854
e49da827 855 st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
b595afaa 856 if (color_greyscale) {
47e1d7ef 857 int color_index, color_dec;
b595afaa 858 /* compute the greyscale palette */
dd1c8f3e 859 st->codec->bits_per_coded_sample = color_depth;
b595afaa
MM
860 color_count = 1 << color_depth;
861 color_index = 255;
862 color_dec = 256 / (color_count - 1);
863 for (j = 0; j < color_count; j++) {
864 r = g = b = color_index;
e49da827 865 st->codec->palctrl->palette[j] =
b595afaa
MM
866 (r << 16) | (g << 8) | (b);
867 color_index -= color_dec;
868 if (color_index < 0)
869 color_index = 0;
870 }
71f36235 871 } else if (st->codec->color_table_id) {
47e1d7ef 872 const uint8_t *color_table;
b595afaa
MM
873 /* if flag bit 3 is set, use the default palette */
874 color_count = 1 << color_depth;
875 if (color_depth == 2)
a90466f7 876 color_table = ff_qt_default_palette_4;
b595afaa 877 else if (color_depth == 4)
a90466f7 878 color_table = ff_qt_default_palette_16;
b595afaa 879 else
a90466f7 880 color_table = ff_qt_default_palette_256;
b595afaa
MM
881
882 for (j = 0; j < color_count; j++) {
883 r = color_table[j * 4 + 0];
884 g = color_table[j * 4 + 1];
885 b = color_table[j * 4 + 2];
e49da827 886 st->codec->palctrl->palette[j] =
b595afaa
MM
887 (r << 16) | (g << 8) | (b);
888 }
b595afaa 889 } else {
b595afaa
MM
890 /* load the palette from the file */
891 color_start = get_be32(pb);
892 color_count = get_be16(pb);
893 color_end = get_be16(pb);
8b35bd80
MM
894 if ((color_start <= 255) &&
895 (color_end <= 255)) {
9de2919c
MM
896 for (j = color_start; j <= color_end; j++) {
897 /* each R, G, or B component is 16 bits;
898 * only use the top 8 bits; skip alpha bytes
899 * up front */
900 get_byte(pb);
901 get_byte(pb);
902 r = get_byte(pb);
903 get_byte(pb);
904 g = get_byte(pb);
905 get_byte(pb);
906 b = get_byte(pb);
907 get_byte(pb);
e49da827 908 st->codec->palctrl->palette[j] =
9de2919c 909 (r << 16) | (g << 8) | (b);
8b35bd80 910 }
b595afaa
MM
911 }
912 }
01f4895c 913 st->codec->palctrl->palette_changed = 1;
e49da827 914 }
de23f234 915 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
aaef2bb3 916 int bits_per_sample, flags;
de23f234 917 uint16_t version = get_be16(pb);
b595afaa 918
99487f42 919 st->codec->codec_id = id;
de23f234
BC
920 get_be16(pb); /* revision level */
921 get_be32(pb); /* vendor */
6d6d7970 922
de23f234 923 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 924 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
dd1c8f3e 925 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
de23f234 926
77c75437 927 sc->audio_cid = get_be16(pb);
de23f234
BC
928 get_be16(pb); /* packet size = 0 */
929
930 st->codec->sample_rate = ((get_be32(pb) >> 16));
931
5ef3ad59
BC
932 //Read QT version 1 fields. In version 0 these do not exist.
933 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
934 if(!c->isom) {
935 if(version==1) {
936 sc->samples_per_frame = get_be32(pb);
937 get_be32(pb); /* bytes per packet */
938 sc->bytes_per_frame = get_be32(pb);
939 get_be32(pb); /* bytes per sample */
940 } else if(version==2) {
941 get_be32(pb); /* sizeof struct only */
942 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
943 st->codec->channels = get_be32(pb);
944 get_be32(pb); /* always 0x7F000000 */
dd1c8f3e 945 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
aaef2bb3 946 flags = get_be32(pb); /* lcpm format specific flag */
9184d53a
BC
947 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
948 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f 949 if (format == MKTAG('l','p','c','m'))
dd1c8f3e 950 st->codec->codec_id = mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
5ef3ad59
BC
951 }
952 }
953
de23f234 954 switch (st->codec->codec_id) {
b72708f8
BC
955 case CODEC_ID_PCM_S8:
956 case CODEC_ID_PCM_U8:
dd1c8f3e 957 if (st->codec->bits_per_coded_sample == 16)
b72708f8
BC
958 st->codec->codec_id = CODEC_ID_PCM_S16BE;
959 break;
0dd39bfe 960 case CODEC_ID_PCM_S16LE:
de23f234 961 case CODEC_ID_PCM_S16BE:
dd1c8f3e 962 if (st->codec->bits_per_coded_sample == 8)
de23f234 963 st->codec->codec_id = CODEC_ID_PCM_S8;
dd1c8f3e 964 else if (st->codec->bits_per_coded_sample == 24)
6b477e1b
BC
965 st->codec->codec_id =
966 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
967 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 968 break;
53152765
BC
969 /* set values for old format before stsd version 1 appeared */
970 case CODEC_ID_MACE3:
971 sc->samples_per_frame = 6;
972 sc->bytes_per_frame = 2*st->codec->channels;
973 break;
974 case CODEC_ID_MACE6:
975 sc->samples_per_frame = 6;
976 sc->bytes_per_frame = 1*st->codec->channels;
977 break;
978 case CODEC_ID_ADPCM_IMA_QT:
979 sc->samples_per_frame = 64;
980 sc->bytes_per_frame = 34*st->codec->channels;
981 break;
cc326d2b
BC
982 case CODEC_ID_GSM:
983 sc->samples_per_frame = 160;
984 sc->bytes_per_frame = 33;
985 break;
de23f234
BC
986 default:
987 break;
6d6d7970 988 }
14342fd5 989
9770089d
BC
990 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
991 if (bits_per_sample) {
dd1c8f3e 992 st->codec->bits_per_coded_sample = bits_per_sample;
9770089d
BC
993 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
994 }
cc8d87b7 995 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
58e9f2ed
DC
996 // ttxt stsd contains display flags, justification, background
997 // color, fonts, and default styles, so fake an atom to read it
998 MOVAtom fake_atom = { .size = size - (url_ftell(pb) - start_pos) };
999 mov_read_glbl(c, pb, fake_atom);
cc8d87b7 1000 st->codec->codec_id= id;
6cdbff63
DC
1001 st->codec->width = sc->width;
1002 st->codec->height = sc->height;
de23f234
BC
1003 } else {
1004 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
1005 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 1006 }
de23f234
BC
1007 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
1008 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
1009 if (a.size > 8) {
1010 if (mov_read_default(c, pb, a) < 0)
1011 return -1;
1012 } else if (a.size > 0)
de23f234 1013 url_fskip(pb, a.size);
6cea494e 1014 }
115329f1 1015
60f5c96e 1016 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 1017 st->codec->sample_rate= sc->time_scale;
e31bd3e3 1018
d00f8e17 1019 /* special codec parameters handling */
e31bd3e3 1020 switch (st->codec->codec_id) {
b250f9c6 1021#if CONFIG_DV_DEMUXER
b60c0454 1022 case CODEC_ID_DVAUDIO:
8e2fd8e1 1023 c->dv_fctx = avformat_alloc_context();
b60c0454
BC
1024 c->dv_demux = dv_init_demux(c->dv_fctx);
1025 if (!c->dv_demux) {
1026 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1027 return -1;
1028 }
1029 sc->dv_audio_container = 1;
1030 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1031 break;
989ac5a6 1032#endif
b95319a2 1033 /* no ifdef since parameters are always those */
3f78a3a9 1034 case CODEC_ID_QCELP:
73b458e3 1035 st->codec->frame_size= 160;
061f407e 1036 st->codec->channels= 1; /* really needed */
73b458e3 1037 break;
b95319a2 1038 case CODEC_ID_AMR_NB:
aeb62788 1039 case CODEC_ID_AMR_WB:
cfb5a2ab 1040 st->codec->frame_size= sc->samples_per_frame;
b95319a2 1041 st->codec->channels= 1; /* really needed */
f06188d5 1042 /* force sample rate for amr, stsd in 3gp does not store sample rate */
5b9ce252 1043 if (st->codec->codec_id == CODEC_ID_AMR_NB)
f06188d5 1044 st->codec->sample_rate = 8000;
5b9ce252
BC
1045 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
1046 st->codec->sample_rate = 16000;
b95319a2 1047 break;
a41104f8 1048 case CODEC_ID_MP2:
c59f24e6 1049 case CODEC_ID_MP3:
95a07973 1050 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 1051 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 1052 break;
5610f20e 1053 case CODEC_ID_GSM:
74e9b9ae
BC
1054 case CODEC_ID_ADPCM_MS:
1055 case CODEC_ID_ADPCM_IMA_WAV:
1056 st->codec->block_align = sc->bytes_per_frame;
1057 break;
be511925 1058 case CODEC_ID_ALAC:
a1532824 1059 if (st->codec->extradata_size == 36) {
364df7b7
BC
1060 st->codec->frame_size = AV_RB32(st->codec->extradata+12);
1061 st->codec->channels = AV_RB8 (st->codec->extradata+21);
a1532824 1062 }
be511925 1063 break;
e31bd3e3
BC
1064 default:
1065 break;
1066 }
5cd62665 1067
6cea494e
ZK
1068 return 0;
1069}
1070
c3e92a6c 1071static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 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;
b6a17df4 1076
6cea494e 1077 get_byte(pb); /* version */
23f08617 1078 get_be24(pb); /* flags */
6cea494e
ZK
1079
1080 entries = get_be32(pb);
115329f1 1081
f8c18cd7
BC
1082 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1083
0d8f0abf
BC
1084 if(entries >= UINT_MAX / sizeof(*sc->stsc_data))
1085 return -1;
04e06cfa
BC
1086 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1087 if (!sc->stsc_data)
0d8f0abf
BC
1088 return AVERROR(ENOMEM);
1089 sc->stsc_count = entries;
1090
6cea494e 1091 for(i=0; i<entries; i++) {
04e06cfa
BC
1092 sc->stsc_data[i].first = get_be32(pb);
1093 sc->stsc_data[i].count = get_be32(pb);
1094 sc->stsc_data[i].id = get_be32(pb);
6cea494e
ZK
1095 }
1096 return 0;
1097}
1098
c3e92a6c 1099static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
247d56f5
BB
1100{
1101 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1102 MOVStreamContext *sc = st->priv_data;
568e18b1 1103 unsigned int i, entries;
247d56f5 1104
247d56f5 1105 get_byte(pb); /* version */
23f08617 1106 get_be24(pb); /* flags */
247d56f5
BB
1107
1108 entries = get_be32(pb);
115329f1 1109
0d8f0abf
BC
1110 dprintf(c->fc, "keyframe_count = %d\n", entries);
1111
1c02d96f 1112 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1113 return -1;
1c02d96f 1114 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5 1115 if (!sc->keyframes)
0d8f0abf
BC
1116 return AVERROR(ENOMEM);
1117 sc->keyframe_count = entries;
1118
247d56f5
BB
1119 for(i=0; i<entries; i++) {
1120 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1121 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1122 }
1123 return 0;
1124}
1125
c3e92a6c 1126static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 1127{
5ca1d879 1128 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1129 MOVStreamContext *sc = st->priv_data;
b72708f8 1130 unsigned int i, entries, sample_size;
b6a17df4 1131
6cea494e 1132 get_byte(pb); /* version */
23f08617 1133 get_be24(pb); /* flags */
5cd62665 1134
b72708f8
BC
1135 sample_size = get_be32(pb);
1136 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1137 sc->sample_size = sample_size;
6cea494e 1138 entries = get_be32(pb);
0d8f0abf
BC
1139
1140 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
568e18b1 1141
6cea494e 1142 sc->sample_count = entries;
b72708f8
BC
1143 if (sample_size)
1144 return 0;
1145
0d8f0abf
BC
1146 if(entries >= UINT_MAX / sizeof(int))
1147 return -1;
1c02d96f 1148 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4 1149 if (!sc->sample_sizes)
0d8f0abf
BC
1150 return AVERROR(ENOMEM);
1151
eb61405a 1152 for(i=0; i<entries; i++)
6cea494e 1153 sc->sample_sizes[i] = get_be32(pb);
6cea494e
ZK
1154 return 0;
1155}
1156
c3e92a6c 1157static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 1158{
5ca1d879 1159 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1160 MOVStreamContext *sc = st->priv_data;
568e18b1 1161 unsigned int i, entries;
d957696f
MN
1162 int64_t duration=0;
1163 int64_t total_sample_count=0;
b6a17df4 1164
0147f198 1165 get_byte(pb); /* version */
23f08617 1166 get_be24(pb); /* flags */
0147f198 1167 entries = get_be32(pb);
0d8f0abf
BC
1168
1169 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1170
c3e92a6c 1171 if(entries >= UINT_MAX / sizeof(*sc->stts_data))
568e18b1 1172 return -1;
c3e92a6c 1173 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
c1da59fa 1174 if (!sc->stts_data)
0d8f0abf
BC
1175 return AVERROR(ENOMEM);
1176 sc->stts_count = entries;
cd7352d5 1177
0147f198 1178 for(i=0; i<entries; i++) {
cd461d48
MN
1179 int sample_duration;
1180 int sample_count;
0147f198 1181
891f64b3 1182 sample_count=get_be32(pb);
0147f198 1183 sample_duration = get_be32(pb);
cd7352d5
MN
1184 sc->stts_data[i].count= sample_count;
1185 sc->stts_data[i].duration= sample_duration;
1186
9ce6c138 1187 sc->time_rate= av_gcd(sc->time_rate, sample_duration);
961e0ccd 1188
318c5e05 1189 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1190
7e815047 1191 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1192 total_sample_count+=sample_count;
891f64b3 1193 }
1194
961e0ccd
MN
1195 st->nb_frames= total_sample_count;
1196 if(duration)
1197 st->duration= duration;
0147f198
FR
1198 return 0;
1199}
1200
c3e92a6c 1201static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
c4ac052b 1202{
70a61ed4 1203 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1204 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1205 unsigned int i, entries;
1206
c4ac052b 1207 get_byte(pb); /* version */
23f08617 1208 get_be24(pb); /* flags */
c4ac052b 1209 entries = get_be32(pb);
0d8f0abf
BC
1210
1211 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1212
c3e92a6c 1213 if(entries >= UINT_MAX / sizeof(*sc->ctts_data))
c4ac052b 1214 return -1;
c3e92a6c 1215 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
c1da59fa 1216 if (!sc->ctts_data)
0d8f0abf
BC
1217 return AVERROR(ENOMEM);
1218 sc->ctts_count = entries;
4e5ef14f 1219
c4ac052b 1220 for(i=0; i<entries; i++) {
70a61ed4
MN
1221 int count =get_be32(pb);
1222 int duration =get_be32(pb);
1223
b0519015 1224 if (duration < 0) {
0c5f76f7
BC
1225 sc->wrong_dts = 1;
1226 st->codec->has_b_frames = 1;
b0519015 1227 }
70a61ed4
MN
1228 sc->ctts_data[i].count = count;
1229 sc->ctts_data[i].duration= duration;
1230
9ce6c138 1231 sc->time_rate= av_gcd(sc->time_rate, FFABS(duration));
c4ac052b
MN
1232 }
1233 return 0;
1234}
1235
1e77810d
BC
1236static void mov_build_index(MOVContext *mov, AVStream *st)
1237{
1238 MOVStreamContext *sc = st->priv_data;
bc5c918e 1239 int64_t current_offset;
1e77810d
BC
1240 int64_t current_dts = 0;
1241 unsigned int stts_index = 0;
1242 unsigned int stsc_index = 0;
1243 unsigned int stss_index = 0;
1244 unsigned int i, j;
1245
baf2ffd3
BC
1246 /* adjust first dts according to edit list */
1247 if (sc->time_offset) {
1248 assert(sc->time_offset % sc->time_rate == 0);
1249 current_dts = - (sc->time_offset / sc->time_rate);
1250 }
1251
d3bc61ac
BC
1252 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1253 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1254 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1255 unsigned int current_sample = 0;
1256 unsigned int stts_sample = 0;
1257 unsigned int keyframe, sample_size;
1258 unsigned int distance = 0;
1259 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1260
1261 st->nb_frames = sc->sample_count;
1262 for (i = 0; i < sc->chunk_count; i++) {
1263 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1264 if (stsc_index + 1 < sc->stsc_count &&
1265 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1266 stsc_index++;
04e06cfa 1267 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
1e77810d
BC
1268 if (current_sample >= sc->sample_count) {
1269 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
f0f2218d 1270 return;
1e77810d
BC
1271 }
1272 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1273 if (keyframe) {
1274 distance = 0;
1275 if (stss_index + 1 < sc->keyframe_count)
1276 stss_index++;
1277 }
1278 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1279 if(sc->pseudo_stream_id == -1 ||
04e06cfa 1280 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
1e77810d
BC
1281 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1282 keyframe ? AVINDEX_KEYFRAME : 0);
585dac65
BC
1283 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1284 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1285 current_offset, current_dts, sample_size, distance, keyframe);
1286 }
6c00a9de 1287
1e77810d
BC
1288 current_offset += sample_size;
1289 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1290 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1291 distance++;
1292 stts_sample++;
1293 current_sample++;
1294 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1295 stts_sample = 0;
1296 stts_index++;
1297 }
1298 }
1299 }
1300 } else { /* read whole chunk */
1301 unsigned int chunk_samples, chunk_size, chunk_duration;
1302 unsigned int frames = 1;
1303 for (i = 0; i < sc->chunk_count; i++) {
1304 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1305 if (stsc_index + 1 < sc->stsc_count &&
1306 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1307 stsc_index++;
04e06cfa 1308 chunk_samples = sc->stsc_data[stsc_index].count;
1e77810d
BC
1309 /* get chunk size, beware of alaw/ulaw/mace */
1310 if (sc->samples_per_frame > 0 &&
1311 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
3b8c000d 1312 if (sc->samples_per_frame < 160)
1e77810d
BC
1313 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1314 else {
1315 chunk_size = sc->bytes_per_frame;
1316 frames = chunk_samples / sc->samples_per_frame;
1317 chunk_samples = sc->samples_per_frame;
1318 }
48a55290 1319 } else
1e77810d 1320 chunk_size = chunk_samples * sc->sample_size;
1e77810d
BC
1321 for (j = 0; j < frames; j++) {
1322 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1323 /* get chunk duration */
1324 chunk_duration = 0;
1325 while (chunk_samples > 0) {
1326 if (chunk_samples < sc->stts_data[stts_index].count) {
1327 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1328 sc->stts_data[stts_index].count -= chunk_samples;
1329 break;
1330 } else {
1331 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1332 chunk_samples -= sc->stts_data[stts_index].count;
1333 if (stts_index + 1 < sc->stts_count)
1334 stts_index++;
1335 }
1336 }
1337 current_offset += sc->bytes_per_frame;
117a9190
BC
1338 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1339 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1340 chunk_size, chunk_duration);
1e77810d
BC
1341 assert(chunk_duration % sc->time_rate == 0);
1342 current_dts += chunk_duration / sc->time_rate;
1343 }
1344 }
1345 }
1e77810d 1346}
bd991df2 1347
c3e92a6c 1348static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1349{
1350 AVStream *st;
1351 MOVStreamContext *sc;
bd991df2 1352 int ret;
5ca1d879 1353
5ca1d879 1354 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1355 if (!st) return AVERROR(ENOMEM);
9a630c25 1356 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1357 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1358
5ca1d879 1359 st->priv_data = sc;
05edc1a7 1360 st->codec->codec_type = CODEC_TYPE_DATA;
64d50fa5 1361 sc->ffindex = st->index;
5ca1d879 1362
bd991df2
BC
1363 if ((ret = mov_read_default(c, pb, atom)) < 0)
1364 return ret;
1365
1366 /* sanity checks */
6c00a9de
BC
1367 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
1368 (!sc->sample_size && !sc->sample_count))) {
6282c5f4
BC
1369 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1370 st->index);
bd991df2
BC
1371 return 0;
1372 }
6c00a9de
BC
1373
1374 if (!sc->time_rate)
1375 sc->time_rate = 1;
1376 if (!sc->time_scale)
1377 sc->time_scale = c->time_scale;
1378
bd991df2
BC
1379 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1380
3f78a3a9 1381 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
5b4f5e5d
BC
1382 !st->codec->frame_size && sc->stts_count == 1) {
1383 st->codec->frame_size = av_rescale(sc->stts_data[0].duration,
1384 st->codec->sample_rate, sc->time_scale);
1385 dprintf(c->fc, "frame size %d\n", st->codec->frame_size);
1386 }
bd991df2 1387
6c00a9de 1388 if (st->duration != AV_NOPTS_VALUE) {
bd991df2
BC
1389 assert(st->duration % sc->time_rate == 0);
1390 st->duration /= sc->time_rate;
1391 }
64d50fa5 1392
bd991df2
BC
1393 mov_build_index(c, st);
1394
1395 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1396 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
9e81a0ce
BC
1397 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1398 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
bd991df2
BC
1399 } else
1400 sc->pb = c->fc->pb;
1401
1402 switch (st->codec->codec_id) {
b250f9c6 1403#if CONFIG_H261_DECODER
bd991df2
BC
1404 case CODEC_ID_H261:
1405#endif
b250f9c6 1406#if CONFIG_H263_DECODER
bd991df2
BC
1407 case CODEC_ID_H263:
1408#endif
b250f9c6 1409#if CONFIG_MPEG4_DECODER
bd991df2
BC
1410 case CODEC_ID_MPEG4:
1411#endif
6c00a9de 1412 st->codec->width = 0; /* let decoder init width/height */
bd991df2
BC
1413 st->codec->height= 0;
1414 break;
bd991df2 1415 }
f9900374
BC
1416
1417 /* Do not need those anymore. */
1418 av_freep(&sc->chunk_offsets);
04e06cfa 1419 av_freep(&sc->stsc_data);
f9900374
BC
1420 av_freep(&sc->sample_sizes);
1421 av_freep(&sc->keyframes);
1422 av_freep(&sc->stts_data);
1423
bd991df2 1424 return 0;
5ca1d879
ZK
1425}
1426
c3e92a6c 1427static int mov_read_ilst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201
BC
1428{
1429 int ret;
1430 c->itunes_metadata = 1;
1431 ret = mov_read_default(c, pb, atom);
1432 c->itunes_metadata = 0;
1433 return ret;
1434}
1435
c3e92a6c 1436static int mov_read_meta(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201 1437{
df8843c6
BC
1438 while (atom.size > 8) {
1439 uint32_t tag = get_le32(pb);
1440 atom.size -= 4;
1441 if (tag == MKTAG('h','d','l','r')) {
1442 url_fseek(pb, -8, SEEK_CUR);
1443 atom.size += 8;
1444 return mov_read_default(c, pb, atom);
1445 }
1446 }
1447 return 0;
51c15201
BC
1448}
1449
c3e92a6c 1450static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 1451{
ec072669
JS
1452 int i;
1453 int width;
1454 int height;
1455 int64_t disp_transform[2];
1456 int display_matrix[3][2];
f444b977 1457 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
6cdbff63 1458 MOVStreamContext *sc = st->priv_data;
f444b977 1459 int version = get_byte(pb);
5ca1d879 1460
23f08617 1461 get_be24(pb); /* flags */
5ca1d879
ZK
1462 /*
1463 MOV_TRACK_ENABLED 0x0001
1464 MOV_TRACK_IN_MOVIE 0x0002
1465 MOV_TRACK_IN_PREVIEW 0x0004
1466 MOV_TRACK_IN_POSTER 0x0008
1467 */
1468
1175561e
BC
1469 if (version == 1) {
1470 get_be64(pb);
1471 get_be64(pb);
1472 } else {
1473 get_be32(pb); /* creation time */
1474 get_be32(pb); /* modification time */
1475 }
5ca1d879
ZK
1476 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1477 get_be32(pb); /* reserved */
fcdd622c 1478
117a9190
BC
1479 /* highlevel (considering edits) duration in movie timebase */
1480 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1481 get_be32(pb); /* reserved */
1482 get_be32(pb); /* reserved */
1483
1484 get_be16(pb); /* layer */
1485 get_be16(pb); /* alternate group */
1486 get_be16(pb); /* volume */
1487 get_be16(pb); /* reserved */
1488
ec072669
JS
1489 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1490 // they're kept in fixed point format through all calculations
1491 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1492 for (i = 0; i < 3; i++) {
1493 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1494 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1495 get_be32(pb); // 2.30 fixed point (not used)
1496 }
5ca1d879 1497
ec072669
JS
1498 width = get_be32(pb); // 16.16 fixed point track width
1499 height = get_be32(pb); // 16.16 fixed point track height
6cdbff63
DC
1500 sc->width = width >> 16;
1501 sc->height = height >> 16;
ec072669
JS
1502
1503 //transform the display width/height according to the matrix
1504 // skip this if the display matrix is the default identity matrix
1505 // to keep the same scale, use [width height 1<<16]
1506 if (width && height &&
1507 (display_matrix[0][0] != 65536 || display_matrix[0][1] ||
1508 display_matrix[1][0] || display_matrix[1][1] != 65536 ||
1509 display_matrix[2][0] || display_matrix[2][1])) {
1510 for (i = 0; i < 2; i++)
1511 disp_transform[i] =
1512 (int64_t) width * display_matrix[0][i] +
1513 (int64_t) height * display_matrix[1][i] +
1514 ((int64_t) display_matrix[2][i] << 16);
1515
1516 //sample aspect ratio is new width/height divided by old width/height
59729451 1517 st->sample_aspect_ratio = av_d2q(
ec072669
JS
1518 ((double) disp_transform[0] * height) /
1519 ((double) disp_transform[1] * width), INT_MAX);
1520 }
5ca1d879
ZK
1521 return 0;
1522}
1523
c3e92a6c 1524static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1525{
1526 MOVFragment *frag = &c->fragment;
1527 MOVTrackExt *trex = NULL;
1528 int flags, track_id, i;
1529
1530 get_byte(pb); /* version */
1531 flags = get_be24(pb);
1532
1533 track_id = get_be32(pb);
63581eb1 1534 if (!track_id)
61aedb0f
BC
1535 return -1;
1536 frag->track_id = track_id;
1537 for (i = 0; i < c->trex_count; i++)
1538 if (c->trex_data[i].track_id == frag->track_id) {
1539 trex = &c->trex_data[i];
1540 break;
1541 }
1542 if (!trex) {
1543 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1544 return -1;
1545 }
1546
1547 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1548 else frag->base_data_offset = frag->moof_offset;
1549 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1550 else frag->stsd_id = trex->stsd_id;
1551
1552 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1553 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1554 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1555 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1556 return 0;
1557}
1558
c3e92a6c 1559static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1560{
1561 MOVTrackExt *trex;
1562
1563 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1564 return -1;
0d8f0abf
BC
1565 trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1566 if (!trex)
61aedb0f 1567 return AVERROR(ENOMEM);
0d8f0abf 1568 c->trex_data = trex;
61aedb0f
BC
1569 trex = &c->trex_data[c->trex_count++];
1570 get_byte(pb); /* version */
1571 get_be24(pb); /* flags */
1572 trex->track_id = get_be32(pb);
1573 trex->stsd_id = get_be32(pb);
1574 trex->duration = get_be32(pb);
1575 trex->size = get_be32(pb);
1576 trex->flags = get_be32(pb);
1577 return 0;
1578}
1579
c3e92a6c 1580static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1581{
1582 MOVFragment *frag = &c->fragment;
63581eb1 1583 AVStream *st = NULL;
44e43aab 1584 MOVStreamContext *sc;
61aedb0f
BC
1585 uint64_t offset;
1586 int64_t dts;
1587 int data_offset = 0;
1588 unsigned entries, first_sample_flags = frag->flags;
1589 int flags, distance, i;
1590
63581eb1
AC
1591 for (i = 0; i < c->fc->nb_streams; i++) {
1592 if (c->fc->streams[i]->id == frag->track_id) {
1593 st = c->fc->streams[i];
1594 break;
1595 }
1596 }
1597 if (!st) {
1598 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
44e43aab 1599 return -1;
63581eb1 1600 }
44e43aab 1601 sc = st->priv_data;
61aedb0f
BC
1602 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1603 return 0;
61aedb0f
BC
1604 get_byte(pb); /* version */
1605 flags = get_be24(pb);
1606 entries = get_be32(pb);
1607 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1608 if (flags & 0x001) data_offset = get_be32(pb);
1609 if (flags & 0x004) first_sample_flags = get_be32(pb);
1610 if (flags & 0x800) {
0d8f0abf 1611 MOVStts *ctts_data;
61aedb0f
BC
1612 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1613 return -1;
0d8f0abf
BC
1614 ctts_data = av_realloc(sc->ctts_data,
1615 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1616 if (!ctts_data)
61aedb0f 1617 return AVERROR(ENOMEM);
0d8f0abf 1618 sc->ctts_data = ctts_data;
61aedb0f
BC
1619 }
1620 dts = st->duration;
1621 offset = frag->base_data_offset + data_offset;
1622 distance = 0;
1623 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1624 for (i = 0; i < entries; i++) {
1625 unsigned sample_size = frag->size;
1626 int sample_flags = i ? frag->flags : first_sample_flags;
1627 unsigned sample_duration = frag->duration;
1628 int keyframe;
1629
1630 if (flags & 0x100) sample_duration = get_be32(pb);
1631 if (flags & 0x200) sample_size = get_be32(pb);
1632 if (flags & 0x400) sample_flags = get_be32(pb);
1633 if (flags & 0x800) {
1634 sc->ctts_data[sc->ctts_count].count = 1;
1635 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1636 sc->ctts_count++;
1637 }
1638 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1639 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1640 distance = 0;
1641 av_add_index_entry(st, offset, dts, sample_size, distance,
1642 keyframe ? AVINDEX_KEYFRAME : 0);
1643 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1644 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1645 offset, dts, sample_size, distance, keyframe);
1646 distance++;
1647 assert(sample_duration % sc->time_rate == 0);
1648 dts += sample_duration / sc->time_rate;
1649 offset += sample_size;
1650 }
1651 frag->moof_offset = offset;
61aedb0f
BC
1652 st->duration = dts;
1653 return 0;
1654}
1655
5ca1d879
ZK
1656/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1657/* like the files created with Adobe Premiere 5.0, for samples see */
1658/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
c3e92a6c 1659static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1660{
1661 int err;
5ca1d879 1662
5ca1d879
ZK
1663 if (atom.size < 8)
1664 return 0; /* continue */
1665 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1666 url_fskip(pb, atom.size - 4);
1667 return 0;
1668 }
1669 atom.type = get_le32(pb);
1670 atom.offset += 8;
1671 atom.size -= 8;
1c126b4f 1672 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
1673 url_fskip(pb, atom.size);
1674 return 0;
1675 }
1676 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1677 return err;
1678}
1679
c3e92a6c 1680static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 1681{
b250f9c6 1682#if CONFIG_ZLIB
0147f198 1683 ByteIOContext ctx;
b6a17df4
ZK
1684 uint8_t *cmov_data;
1685 uint8_t *moov_data; /* uncompressed data */
0147f198 1686 long cmov_len, moov_len;
6f04eb1e 1687 int ret = -1;
b6a17df4 1688
0147f198 1689 get_be32(pb); /* dcom atom */
1c126b4f 1690 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 1691 return -1;
1c126b4f 1692 if (get_le32(pb) != MKTAG('z','l','i','b')) {
f3592353 1693 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1694 return -1;
1695 }
1696 get_be32(pb); /* cmvd atom */
1c126b4f 1697 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
1698 return -1;
1699 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1700 cmov_len = atom.size - 6 * 4;
5cd62665 1701
9a630c25 1702 cmov_data = av_malloc(cmov_len);
0147f198 1703 if (!cmov_data)
0d8f0abf 1704 return AVERROR(ENOMEM);
9a630c25 1705 moov_data = av_malloc(moov_len);
0147f198
FR
1706 if (!moov_data) {
1707 av_free(cmov_data);
0d8f0abf 1708 return AVERROR(ENOMEM);
0147f198
FR
1709 }
1710 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1711 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 1712 goto free_and_return;
942f3bb5 1713 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 1714 goto free_and_return;
1c126b4f 1715 atom.type = MKTAG('m','o','o','v');
5ca1d879
ZK
1716 atom.offset = 0;
1717 atom.size = moov_len;
9ed83b0a 1718#ifdef DEBUG
dbb4f00a 1719// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1720#endif
5ca1d879 1721 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 1722free_and_return:
0147f198
FR
1723 av_free(moov_data);
1724 av_free(cmov_data);
1725 return ret;
d966b2f0
BC
1726#else
1727 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1728 return -1;
0147f198 1729#endif
d966b2f0 1730}
0147f198 1731
baf25c9d 1732/* edit list atom */
c3e92a6c 1733static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
baf25c9d 1734{
7c622eed 1735 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1736 int i, edit_count;
1737
1738 get_byte(pb); /* version */
23f08617 1739 get_be24(pb); /* flags */
1975c52c 1740 edit_count = get_be32(pb); /* entries */
e0977c80
BC
1741
1742 for(i=0; i<edit_count; i++){
d435e520 1743 int time;
e0977c80 1744 get_be32(pb); /* Track duration */
d435e520 1745 time = get_be32(pb); /* Media time */
e0977c80 1746 get_be32(pb); /* Media rate */
a5929abe 1747 if (i == 0 && time != -1) {
baf2ffd3 1748 sc->time_offset = time;
a5929abe
BC
1749 sc->time_rate = av_gcd(sc->time_rate, time);
1750 }
e0977c80 1751 }
baf2ffd3
BC
1752
1753 if(edit_count > 1)
1754 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
1755 "a/v desync might occur, patch welcome\n");
1756
4c125b8f 1757 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
e0977c80 1758 return 0;
baf25c9d
GC
1759}
1760
6cea494e 1761static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 1762{ MKTAG('a','v','s','s'), mov_read_extradata },
1c126b4f
BC
1763{ MKTAG('c','o','6','4'), mov_read_stco },
1764{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1765{ MKTAG('d','i','n','f'), mov_read_default },
1766{ MKTAG('d','r','e','f'), mov_read_dref },
1767{ MKTAG('e','d','t','s'), mov_read_default },
1768{ MKTAG('e','l','s','t'), mov_read_elst },
1769{ MKTAG('e','n','d','a'), mov_read_enda },
1770{ MKTAG('f','i','e','l'), mov_read_extradata },
1771{ MKTAG('f','t','y','p'), mov_read_ftyp },
1772{ MKTAG('g','l','b','l'), mov_read_glbl },
1773{ MKTAG('h','d','l','r'), mov_read_hdlr },
51c15201 1774{ MKTAG('i','l','s','t'), mov_read_ilst },
1c126b4f
BC
1775{ MKTAG('j','p','2','h'), mov_read_extradata },
1776{ MKTAG('m','d','a','t'), mov_read_mdat },
1777{ MKTAG('m','d','h','d'), mov_read_mdhd },
1778{ MKTAG('m','d','i','a'), mov_read_default },
51c15201 1779{ MKTAG('m','e','t','a'), mov_read_meta },
1c126b4f
BC
1780{ MKTAG('m','i','n','f'), mov_read_default },
1781{ MKTAG('m','o','o','f'), mov_read_moof },
1782{ MKTAG('m','o','o','v'), mov_read_moov },
1783{ MKTAG('m','v','e','x'), mov_read_default },
1784{ MKTAG('m','v','h','d'), mov_read_mvhd },
1785{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1786{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1787{ MKTAG('a','v','c','C'), mov_read_glbl },
6da54074 1788{ MKTAG('p','a','s','p'), mov_read_pasp },
1c126b4f
BC
1789{ MKTAG('s','t','b','l'), mov_read_default },
1790{ MKTAG('s','t','c','o'), mov_read_stco },
1791{ MKTAG('s','t','s','c'), mov_read_stsc },
1792{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1793{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1794{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1795{ MKTAG('s','t','t','s'), mov_read_stts },
1796{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1797{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1798{ MKTAG('t','r','a','k'), mov_read_trak },
1799{ MKTAG('t','r','a','f'), mov_read_default },
1800{ MKTAG('t','r','e','x'), mov_read_trex },
1801{ MKTAG('t','r','u','n'), mov_read_trun },
86b0affd 1802{ MKTAG('u','d','t','a'), mov_read_default },
1c126b4f
BC
1803{ MKTAG('w','a','v','e'), mov_read_wave },
1804{ MKTAG('e','s','d','s'), mov_read_esds },
1805{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1806{ MKTAG('c','m','o','v'), mov_read_cmov },
bcfe2ba0 1807{ 0, NULL }
6cea494e
ZK
1808};
1809
c9a65ca8
FB
1810static int mov_probe(AVProbeData *p)
1811{
0e7eed09
FB
1812 unsigned int offset;
1813 uint32_t tag;
2497479f 1814 int score = 0;
3ffe3793 1815
c9a65ca8 1816 /* check file header */
0e7eed09
FB
1817 offset = 0;
1818 for(;;) {
1819 /* ignore invalid offset */
1820 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1821 return score;
fead30d4 1822 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1823 switch(tag) {
2497479f 1824 /* check for obvious tags */
1c126b4f
BC
1825 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
1826 case MKTAG('m','o','o','v'):
1827 case MKTAG('m','d','a','t'):
1828 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
1829 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 1830 case MKTAG('f','t','y','p'):
3ffe3793 1831 return AVPROBE_SCORE_MAX;
2497479f 1832 /* those are more common words, so rate then a bit less */
1c126b4f
BC
1833 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
1834 case MKTAG('w','i','d','e'):
1835 case MKTAG('f','r','e','e'):
1836 case MKTAG('j','u','n','k'):
1837 case MKTAG('p','i','c','t'):
2497479f 1838 return AVPROBE_SCORE_MAX - 5;
5469b788 1839 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
1840 case MKTAG('s','k','i','p'):
1841 case MKTAG('u','u','i','d'):
1842 case MKTAG('p','r','f','l'):
fead30d4 1843 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1844 /* if we only find those cause probedata is too small at least rate them */
1845 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1846 break;
1847 default:
1848 /* unrecognized tag */
2497479f 1849 return score;
0e7eed09 1850 }
3ffe3793 1851 }
2497479f 1852 return score;
c9a65ca8
FB
1853}
1854
a266644f 1855static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1856{
e4141433 1857 MOVContext *mov = s->priv_data;
899681cd 1858 ByteIOContext *pb = s->pb;
f9900374 1859 int err;
c3e92a6c 1860 MOVAtom atom = { 0, 0, 0 };
6cea494e 1861
6cea494e 1862 mov->fc = s;
117a9190
BC
1863 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1864 if(!url_is_streamed(pb))
bb270c08 1865 atom.size = url_fsize(pb);
6cea494e 1866 else
fa22ca22 1867 atom.size = INT64_MAX;
6cea494e 1868
6cea494e 1869 /* check MOV header */
612b5cbb
BC
1870 if ((err = mov_read_default(mov, pb, atom)) < 0) {
1871 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1872 return err;
1873 }
1874 if (!mov->found_moov) {
1875 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 1876 return -1;
6cea494e 1877 }
0265fe81 1878 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 1879
6cea494e
ZK
1880 return 0;
1881}
1882
a266644f 1883static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1884{
b72708f8
BC
1885 MOVContext *mov = s->priv_data;
1886 MOVStreamContext *sc = 0;
1887 AVIndexEntry *sample = 0;
86d8602f 1888 int64_t best_dts = INT64_MAX;
bc64cb96 1889 int i, ret;
433aeb62 1890 retry:
11f16b66 1891 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1892 AVStream *st = s->streams[i];
1893 MOVStreamContext *msc = st->priv_data;
f0f2218d 1894 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < st->nb_index_entries) {
7c622eed 1895 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1896 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1897 AV_TIME_BASE, msc->time_scale);
1c02d96f 1898 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1899 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1900 (!url_is_streamed(s->pb) &&
221e21b7 1901 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1902 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1903 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1904 sample = current_sample;
1905 best_dts = dts;
1906 sc = msc;
86d8602f 1907 }
6cea494e 1908 }
6cea494e 1909 }
433aeb62
BC
1910 if (!sample) {
1911 mov->found_mdat = 0;
1912 if (!url_is_streamed(s->pb) ||
c3e92a6c 1913 mov_read_default(mov, s->pb, (MOVAtom){ 0, 0, INT64_MAX }) < 0 ||
433aeb62
BC
1914 url_feof(s->pb))
1915 return -1;
1916 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1917 goto retry;
1918 }
b72708f8
BC
1919 /* must be done just before reading, to avoid infinite loop on sample */
1920 sc->current_sample++;
221e21b7 1921 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1922 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1923 sc->ffindex, sample->pos);
bb270c08 1924 return -1;
6cea494e 1925 }
bc64cb96
BC
1926 ret = av_get_packet(sc->pb, pkt, sample->size);
1927 if (ret < 0)
1928 return ret;
b250f9c6 1929#if CONFIG_DV_DEMUXER
56ea717b
BC
1930 if (mov->dv_demux && sc->dv_audio_container) {
1931 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1932 av_free(pkt->data);
300aa2b0
BC
1933 pkt->size = 0;
1934 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1935 return -1;
56ea717b 1936 }
312954f0 1937#endif
b72708f8
BC
1938 pkt->stream_index = sc->ffindex;
1939 pkt->dts = sample->timestamp;
1940 if (sc->ctts_data) {
a234e38d
BC
1941 assert(sc->ctts_data[sc->ctts_index].duration % sc->time_rate == 0);
1942 pkt->pts = pkt->dts + sc->ctts_data[sc->ctts_index].duration / sc->time_rate;
b72708f8 1943 /* update ctts context */
a234e38d
BC
1944 sc->ctts_sample++;
1945 if (sc->ctts_index < sc->ctts_count &&
1946 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
1947 sc->ctts_index++;
1948 sc->ctts_sample = 0;
b565ea09 1949 }
0c5f76f7
BC
1950 if (sc->wrong_dts)
1951 pkt->dts = AV_NOPTS_VALUE;
b72708f8 1952 } else {
e8430214 1953 AVStream *st = s->streams[sc->ffindex];
f0f2218d 1954 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
e8430214
HG
1955 st->index_entries[sc->current_sample].timestamp : st->duration;
1956 pkt->duration = next_dts - pkt->dts;
b72708f8 1957 pkt->pts = pkt->dts;
b565ea09 1958 }
b72708f8
BC
1959 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1960 pkt->pos = sample->pos;
29c90869
BC
1961 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1962 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1963 return 0;
1964}
3ffe3793 1965
b72708f8
BC
1966static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1967{
1968 MOVStreamContext *sc = st->priv_data;
1969 int sample, time_sample;
1970 int i;
115329f1 1971
b72708f8 1972 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1973 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1974 if (sample < 0) /* not sure what to do */
1975 return -1;
1976 sc->current_sample = sample;
1c02d96f 1977 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1978 /* adjust ctts index */
1979 if (sc->ctts_data) {
1980 time_sample = 0;
1981 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1982 int next = time_sample + sc->ctts_data[i].count;
1983 if (next > sc->current_sample) {
a234e38d
BC
1984 sc->ctts_index = i;
1985 sc->ctts_sample = sc->current_sample - time_sample;
b72708f8 1986 break;
115329f1 1987 }
54a5c719 1988 time_sample = next;
247d56f5 1989 }
247d56f5 1990 }
b72708f8 1991 return sample;
6cea494e
ZK
1992}
1993
961e0ccd 1994static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1995{
b72708f8
BC
1996 AVStream *st;
1997 int64_t seek_timestamp, timestamp;
1998 int sample;
1999 int i;
baf25c9d 2000
b72708f8 2001 if (stream_index >= s->nb_streams)
baf25c9d 2002 return -1;
8dc81a45
BC
2003 if (sample_time < 0)
2004 sample_time = 0;
baf25c9d 2005
b72708f8
BC
2006 st = s->streams[stream_index];
2007 sample = mov_seek_stream(st, sample_time, flags);
2008 if (sample < 0)
baf25c9d 2009 return -1;
baf25c9d 2010
b72708f8
BC
2011 /* adjust seek timestamp to found sample timestamp */
2012 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 2013
b72708f8
BC
2014 for (i = 0; i < s->nb_streams; i++) {
2015 st = s->streams[i];
2016 if (stream_index == i || st->discard == AVDISCARD_ALL)
2017 continue;
baf25c9d 2018
b72708f8
BC
2019 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
2020 mov_seek_stream(st, timestamp, flags);
115329f1 2021 }
baf25c9d
GC
2022 return 0;
2023}
baf25c9d 2024
a266644f 2025static int mov_read_close(AVFormatContext *s)
6cea494e 2026{
e4141433 2027 MOVContext *mov = s->priv_data;
6c00a9de
BC
2028 int i, j;
2029
2030 for (i = 0; i < s->nb_streams; i++) {
e49da827
BC
2031 AVStream *st = s->streams[i];
2032 MOVStreamContext *sc = st->priv_data;
6c00a9de 2033
7c622eed 2034 av_freep(&sc->ctts_data);
6c00a9de 2035 for (j = 0; j < sc->drefs_count; j++)
221e21b7
BC
2036 av_freep(&sc->drefs[j].path);
2037 av_freep(&sc->drefs);
2038 if (sc->pb && sc->pb != s->pb)
2039 url_fclose(sc->pb);
e49da827
BC
2040
2041 av_freep(&st->codec->palctrl);
4440b118 2042 }
6c00a9de
BC
2043
2044 if (mov->dv_demux) {
2045 for(i = 0; i < mov->dv_fctx->nb_streams; i++) {
b60c0454
BC
2046 av_freep(&mov->dv_fctx->streams[i]->codec);
2047 av_freep(&mov->dv_fctx->streams[i]);
2048 }
2049 av_freep(&mov->dv_fctx);
2050 av_freep(&mov->dv_demux);
2051 }
6c00a9de 2052
61aedb0f 2053 av_freep(&mov->trex_data);
6c00a9de 2054
6cea494e
ZK
2055 return 0;
2056}
2057
ff70e601 2058AVInputFormat mov_demuxer = {
fc5188f3 2059 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 2060 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
2061 sizeof(MOVContext),
2062 mov_probe,
6cea494e
ZK
2063 mov_read_header,
2064 mov_read_packet,
2065 mov_read_close,
baf25c9d 2066 mov_read_seek,
6cea494e 2067};