VC1: merge idct8x8, coeff adjustments and put_pixels.
[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"
e731b8d8 32#include "avio_internal.h"
9d9f4119 33#include "riff.h"
e40ee6a2 34#include "isom.h"
9106a698 35#include "libavcodec/get_bits.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;
ae628ec1 77 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
6cea494e
ZK
78} MOVParseTableEntry;
79
73d07c27
BC
80static const MOVParseTableEntry mov_default_parse_table[];
81
ae628ec1 82static int mov_metadata_trkn(MOVContext *c, AVIOContext *pb, unsigned len)
c6026e43
BC
83{
84 char buf[16];
85
86 get_be16(pb); // unknown
87 snprintf(buf, sizeof(buf), "%d", get_be16(pb));
2ef6c124 88 av_metadata_set2(&c->fc->metadata, "track", buf, 0);
c6026e43
BC
89
90 get_be16(pb); // total tracks
91
92 return 0;
93}
94
08a186c6
BC
95static const uint32_t mac_to_unicode[128] = {
96 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
97 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
98 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
99 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
100 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
101 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
102 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
103 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
104 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
105 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
106 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
107 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
108 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
109 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
110 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
111 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
112};
113
ae628ec1 114static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
08a186c6
BC
115 char *dst, int dstlen)
116{
117 char *p = dst;
118 char *end = dst+dstlen-1;
119 int i;
120
121 for (i = 0; i < len; i++) {
122 uint8_t t, c = get_byte(pb);
123 if (c < 0x80 && p < end)
124 *p++ = c;
125 else
126 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
127 }
128 *p = 0;
129 return p - dst;
130}
131
ae628ec1 132static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
0fb44a4e
BC
133{
134#ifdef MOV_EXPORT_ALL_METADATA
135 char tmp_key[5];
136#endif
137 char str[1024], key2[16], language[4] = {0};
138 const char *key = NULL;
08a186c6
BC
139 uint16_t str_size, langcode = 0;
140 uint32_t data_type = 0;
ae628ec1 141 int (*parse)(MOVContext*, AVIOContext*, unsigned) = NULL;
0fb44a4e
BC
142
143 switch (atom.type) {
144 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
145 case MKTAG(0xa9,'a','u','t'):
ea4c4d7f 146 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
55d2e32a 147 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
b9c78bca 148 case MKTAG( 'c','p','r','t'):
0fb44a4e
BC
149 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
150 case MKTAG(0xa9,'c','m','t'):
151 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
152 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
ca76a119 153 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
0fb44a4e
BC
154 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
155 case MKTAG(0xa9,'t','o','o'):
2b91d83e 156 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
a4cb56aa 157 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
7382902b
DC
158 case MKTAG( 'd','e','s','c'): key = "description";break;
159 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
160 case MKTAG( 't','v','s','h'): key = "show"; break;
161 case MKTAG( 't','v','e','n'): key = "episode_id";break;
162 case MKTAG( 't','v','n','n'): key = "network"; break;
c6026e43
BC
163 case MKTAG( 't','r','k','n'): key = "track";
164 parse = mov_metadata_trkn; break;
0fb44a4e
BC
165 }
166
167 if (c->itunes_metadata && atom.size > 8) {
168 int data_size = get_be32(pb);
169 int tag = get_le32(pb);
170 if (tag == MKTAG('d','a','t','a')) {
08a186c6 171 data_type = get_be32(pb); // type
0fb44a4e
BC
172 get_be32(pb); // unknown
173 str_size = data_size - 16;
174 atom.size -= 16;
175 } else return 0;
176 } else if (atom.size > 4 && key && !c->itunes_metadata) {
177 str_size = get_be16(pb); // string length
08a186c6
BC
178 langcode = get_be16(pb);
179 ff_mov_lang_to_iso639(langcode, language);
0fb44a4e
BC
180 atom.size -= 4;
181 } else
182 str_size = atom.size;
183
184#ifdef MOV_EXPORT_ALL_METADATA
185 if (!key) {
186 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
187 key = tmp_key;
188 }
189#endif
190
191 if (!key)
192 return 0;
193 if (atom.size < 0)
194 return -1;
195
196 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
c6026e43
BC
197
198 if (parse)
199 parse(c, pb, str_size);
200 else {
08a186c6
BC
201 if (data_type == 3 || (data_type == 0 && langcode < 0x800)) { // MAC Encoded
202 mov_read_mac_string(c, pb, str_size, str, sizeof(str));
203 } else {
204 get_buffer(pb, str, str_size);
205 str[str_size] = 0;
206 }
2ef6c124 207 av_metadata_set2(&c->fc->metadata, key, str, 0);
f584386d
BC
208 if (*language && strcmp(language, "und")) {
209 snprintf(key2, sizeof(key2), "%s-%s", key, language);
2ef6c124 210 av_metadata_set2(&c->fc->metadata, key2, str, 0);
f584386d 211 }
c6026e43 212 }
0fb44a4e
BC
213#ifdef DEBUG_METADATA
214 av_log(c->fc, AV_LOG_DEBUG, "lang \"%3s\" ", language);
215 av_log(c->fc, AV_LOG_DEBUG, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %lld\n",
216 key, str, (char*)&atom.type, str_size, atom.size);
217#endif
218
219 return 0;
220}
873358e5 221
ae628ec1 222static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1cf9f6ed
DC
223{
224 int64_t start;
105b3785 225 int i, nb_chapters, str_len, version;
1cf9f6ed
DC
226 char str[256+1];
227
228 if ((atom.size -= 5) < 0)
229 return 0;
230
105b3785
DC
231 version = get_byte(pb);
232 get_be24(pb);
233 if (version)
234 get_be32(pb); // ???
1cf9f6ed
DC
235 nb_chapters = get_byte(pb);
236
237 for (i = 0; i < nb_chapters; i++) {
238 if (atom.size < 9)
239 return 0;
240
241 start = get_be64(pb);
242 str_len = get_byte(pb);
243
244 if ((atom.size -= 9+str_len) < 0)
245 return 0;
246
247 get_buffer(pb, str, str_len);
248 str[str_len] = 0;
249 ff_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
250 }
251 return 0;
252}
253
ae628ec1 254static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6cea494e 255{
b6a17df4 256 int64_t total_size = 0;
c3e92a6c 257 MOVAtom a;
6cea494e 258 int i;
5ca1d879 259
9ed83b0a 260 if (atom.size < 0)
fa22ca22 261 atom.size = INT64_MAX;
7b1312fa 262 while (total_size + 8 < atom.size && !url_feof(pb)) {
ae628ec1 263 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
bb270c08 264 a.size = atom.size;
bcfe2ba0 265 a.type=0;
5ca1d879 266 if(atom.size >= 8) {
bb270c08 267 a.size = get_be32(pb);
5ca1d879 268 a.type = get_le32(pb);
6cea494e 269 }
dfd2a005 270 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3491866a 271 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
2209ffac 272 total_size += 8;
5ca1d879 273 if (a.size == 1) { /* 64 bit extended size */
bb270c08 274 a.size = get_be64(pb) - 8;
5ca1d879 275 total_size += 8;
6cea494e 276 }
bb270c08
DB
277 if (a.size == 0) {
278 a.size = atom.size - total_size;
279 if (a.size <= 8)
5cd62665 280 break;
bb270c08 281 }
bb270c08 282 a.size -= 8;
8622613d 283 if(a.size < 0)
568e18b1 284 break;
3d2308b0 285 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 286
873358e5
BC
287 for (i = 0; mov_default_parse_table[i].type; i++)
288 if (mov_default_parse_table[i].type == a.type) {
289 parse = mov_default_parse_table[i].parse;
290 break;
291 }
11979c46 292
873358e5
BC
293 // container is user data
294 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
295 atom.type == MKTAG('i','l','s','t')))
296 parse = mov_read_udta_string;
297
298 if (!parse) { /* skip leaf atoms data */
5ca1d879 299 url_fskip(pb, a.size);
bb270c08 300 } else {
bc5c918e 301 int64_t start_pos = url_ftell(pb);
5c72cad8 302 int64_t left;
a510991c
BC
303 int err = parse(c, pb, a);
304 if (err < 0)
305 return err;
49544546
BC
306 if (c->found_moov && c->found_mdat &&
307 (url_is_streamed(pb) || start_pos + a.size == url_fsize(pb)))
308 return 0;
5c72cad8
BC
309 left = a.size - url_ftell(pb) + start_pos;
310 if (left > 0) /* skip garbage at atom end */
311 url_fskip(pb, left);
bb270c08 312 }
6cea494e 313
5ca1d879 314 total_size += a.size;
6cea494e
ZK
315 }
316
a510991c 317 if (total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 318 url_fskip(pb, atom.size - total_size);
5cd62665 319
a510991c 320 return 0;
6cea494e
ZK
321}
322
ae628ec1 323static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
221e21b7 324{
6a63ff19
BC
325 AVStream *st;
326 MOVStreamContext *sc;
221e21b7
BC
327 int entries, i, j;
328
6a63ff19
BC
329 if (c->fc->nb_streams < 1)
330 return 0;
331 st = c->fc->streams[c->fc->nb_streams-1];
332 sc = st->priv_data;
333
221e21b7
BC
334 get_be32(pb); // version + flags
335 entries = get_be32(pb);
336 if (entries >= UINT_MAX / sizeof(*sc->drefs))
337 return -1;
221e21b7 338 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
0d8f0abf
BC
339 if (!sc->drefs)
340 return AVERROR(ENOMEM);
341 sc->drefs_count = entries;
221e21b7
BC
342
343 for (i = 0; i < sc->drefs_count; i++) {
c3e92a6c 344 MOVDref *dref = &sc->drefs[i];
221e21b7 345 uint32_t size = get_be32(pb);
bc5c918e 346 int64_t next = url_ftell(pb) + size - 4;
221e21b7 347
0e7d436d
BC
348 if (size < 12)
349 return -1;
350
221e21b7
BC
351 dref->type = get_le32(pb);
352 get_be32(pb); // version + flags
dfd2a005 353 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
221e21b7
BC
354
355 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
356 /* macintosh alias record */
357 uint16_t volume_len, len;
221e21b7
BC
358 int16_t type;
359
360 url_fskip(pb, 10);
361
362 volume_len = get_byte(pb);
363 volume_len = FFMIN(volume_len, 27);
adeb9071
BC
364 get_buffer(pb, dref->volume, 27);
365 dref->volume[volume_len] = 0;
366 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
221e21b7 367
adeb9071
BC
368 url_fskip(pb, 12);
369
370 len = get_byte(pb);
371 len = FFMIN(len, 63);
372 get_buffer(pb, dref->filename, 63);
373 dref->filename[len] = 0;
374 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
375
376 url_fskip(pb, 16);
377
378 /* read next level up_from_alias/down_to_target */
379 dref->nlvl_from = get_be16(pb);
380 dref->nlvl_to = get_be16(pb);
381 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
382 dref->nlvl_from, dref->nlvl_to);
383
384 url_fskip(pb, 16);
221e21b7
BC
385
386 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
387 type = get_be16(pb);
388 len = get_be16(pb);
389 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
390 if (len&1)
391 len += 1;
392 if (type == 2) { // absolute path
dbb37657 393 av_free(dref->path);
221e21b7 394 dref->path = av_mallocz(len+1);
2f4568e5
BC
395 if (!dref->path)
396 return AVERROR(ENOMEM);
221e21b7 397 get_buffer(pb, dref->path, len);
adeb9071 398 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
221e21b7
BC
399 len -= volume_len;
400 memmove(dref->path, dref->path+volume_len, len);
401 dref->path[len] = 0;
402 }
403 for (j = 0; j < len; j++)
404 if (dref->path[j] == ':')
405 dref->path[j] = '/';
406 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
adeb9071
BC
407 } else if (type == 0) { // directory name
408 av_free(dref->dir);
409 dref->dir = av_malloc(len+1);
410 if (!dref->dir)
411 return AVERROR(ENOMEM);
412 get_buffer(pb, dref->dir, len);
413 dref->dir[len] = 0;
414 for (j = 0; j < len; j++)
415 if (dref->dir[j] == ':')
416 dref->dir[j] = '/';
417 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
221e21b7
BC
418 } else
419 url_fskip(pb, len);
420 }
421 }
422 url_fseek(pb, next, SEEK_SET);
423 }
424 return 0;
425}
426
ae628ec1 427static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6cea494e 428{
fefe43ff 429 AVStream *st;
0c1a9eda 430 uint32_t type;
0c1a9eda 431 uint32_t ctype;
b6a17df4 432
fefe43ff
AC
433 if (c->fc->nb_streams < 1) // meta before first trak
434 return 0;
435
436 st = c->fc->streams[c->fc->nb_streams-1];
437
6cea494e 438 get_byte(pb); /* version */
23f08617 439 get_be24(pb); /* flags */
6cea494e
ZK
440
441 /* component type */
442 ctype = get_le32(pb);
443 type = get_le32(pb); /* component subtype */
444
dfd2a005
LB
445 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
446 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
2229a5c6 447
37ffe34b 448 if (type == MKTAG('v','i','d','e'))
72415b2a 449 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1c126b4f 450 else if(type == MKTAG('s','o','u','n'))
72415b2a 451 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1c126b4f 452 else if(type == MKTAG('m','1','a',' '))
95a07973 453 st->codec->codec_id = CODEC_ID_MP2;
f05783c2 454 else if(type == MKTAG('s','u','b','p'))
72415b2a 455 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
f05783c2 456
6cea494e
ZK
457 get_be32(pb); /* component manufacture */
458 get_be32(pb); /* component flags */
459 get_be32(pb); /* component flags mask */
460
6cea494e
ZK
461 return 0;
462}
463
ae628ec1 464int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb, MOVAtom atom)
5cd62665 465{
6a63ff19 466 AVStream *st;
5cd62665 467 int tag, len;
b6a17df4 468
2d423666 469 if (fc->nb_streams < 1)
6a63ff19 470 return 0;
2d423666 471 st = fc->streams[fc->nb_streams-1];
6a63ff19 472
5cd62665 473 get_be32(pb); /* version + flags */
798c6fac 474 len = ff_mp4_read_descr(fc, pb, &tag);
5cd62665 475 if (tag == MP4ESDescrTag) {
bb270c08
DB
476 get_be16(pb); /* ID */
477 get_byte(pb); /* priority */
5cd62665 478 } else
bb270c08 479 get_be16(pb); /* ID */
5cd62665 480
798c6fac
BC
481 len = ff_mp4_read_descr(fc, pb, &tag);
482 if (tag == MP4DecConfigDescrTag)
483 ff_mp4_read_dec_config_descr(fc, st, pb);
5cd62665
ZK
484 return 0;
485}
486
ae628ec1 487static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2d423666
PR
488{
489 return ff_mov_read_esds(c->fc, pb, atom);
490}
491
ae628ec1 492static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
bdecdd2b
JR
493{
494 AVStream *st;
495 int ac3info, acmod, lfeon;
496
6d19fd5c
BC
497 if (c->fc->nb_streams < 1)
498 return 0;
bdecdd2b
JR
499 st = c->fc->streams[c->fc->nb_streams-1];
500
501 ac3info = get_be24(pb);
502 acmod = (ac3info >> 11) & 0x7;
503 lfeon = (ac3info >> 10) & 0x1;
504 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
505
506 return 0;
507}
508
ae628ec1 509static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6da54074
BC
510{
511 const int num = get_be32(pb);
512 const int den = get_be32(pb);
6a63ff19
BC
513 AVStream *st;
514
515 if (c->fc->nb_streams < 1)
516 return 0;
517 st = c->fc->streams[c->fc->nb_streams-1];
518
9044dd83
BC
519 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
520 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
521 av_log(c->fc, AV_LOG_WARNING,
522 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
523 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
524 num, den);
525 } else if (den != 0) {
6da54074
BC
526 st->sample_aspect_ratio.num = num;
527 st->sample_aspect_ratio.den = den;
528 }
529 return 0;
530}
531
5ca1d879 532/* this atom contains actual media data */
ae628ec1 533static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6cea494e 534{
5ca1d879
ZK
535 if(atom.size == 0) /* wrong one (MP4) */
536 return 0;
537 c->found_mdat=1;
5ca1d879
ZK
538 return 0; /* now go for moov */
539}
540
7b5252ce 541/* read major brand, minor version and compatible brands and store them as metadata */
ae628ec1 542static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4ea28253 543{
7b5252ce 544 uint32_t minor_ver;
545 int comp_brand_size;
546 char minor_ver_str[11]; /* 32 bit integer -> 10 digits + null */
547 char* comp_brands_str;
548 uint8_t type[5] = {0};
549
550 get_buffer(pb, type, 4);
a42bf191 551 if (strcmp(type, "qt "))
152e9a43 552 c->isom = 1;
a512446e 553 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
2ef6c124 554 av_metadata_set2(&c->fc->metadata, "major_brand", type, 0);
7b5252ce 555 minor_ver = get_be32(pb); /* minor version */
556 snprintf(minor_ver_str, sizeof(minor_ver_str), "%d", minor_ver);
2ef6c124 557 av_metadata_set2(&c->fc->metadata, "minor_version", minor_ver_str, 0);
7b5252ce 558
559 comp_brand_size = atom.size - 8;
560 if (comp_brand_size < 0)
561 return -1;
562 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
563 if (!comp_brands_str)
564 return AVERROR(ENOMEM);
565 get_buffer(pb, comp_brands_str, comp_brand_size);
566 comp_brands_str[comp_brand_size] = 0;
2ef6c124 567 av_metadata_set2(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
7b5252ce 568 av_freep(&comp_brands_str);
569
4ea28253
BC
570 return 0;
571}
572
5ca1d879 573/* this atom should contain all header atoms */
ae628ec1 574static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879 575{
9cf0419b
PI
576 if (mov_read_default(c, pb, atom) < 0)
577 return -1;
5ca1d879
ZK
578 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
579 /* so we don't parse the whole file if over a network */
580 c->found_moov=1;
5ca1d879
ZK
581 return 0; /* now go for mdat */
582}
583
ae628ec1 584static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
61aedb0f
BC
585{
586 c->fragment.moof_offset = url_ftell(pb) - 8;
dfd2a005 587 av_dlog(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
61aedb0f
BC
588 return mov_read_default(c, pb, atom);
589}
5ca1d879 590
7df22143
AJ
591static void mov_metadata_creation_time(AVMetadata **metadata, time_t time)
592{
593 char buffer[32];
594 if (time) {
5e2202d6 595 struct tm *ptm;
7df22143 596 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
5e2202d6
BC
597 ptm = gmtime(&time);
598 if (!ptm) return;
599 strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
7df22143
AJ
600 av_metadata_set2(metadata, "creation_time", buffer, 0);
601 }
602}
603
ae628ec1 604static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879 605{
6a63ff19
BC
606 AVStream *st;
607 MOVStreamContext *sc;
608 int version;
49674dd0 609 char language[4] = {0};
dce25564 610 unsigned lang;
7df22143 611 time_t creation_time;
5ca1d879 612
6a63ff19
BC
613 if (c->fc->nb_streams < 1)
614 return 0;
615 st = c->fc->streams[c->fc->nb_streams-1];
616 sc = st->priv_data;
617
618 version = get_byte(pb);
b9a87c4d 619 if (version > 1)
7e627332 620 return -1; /* unsupported */
5ca1d879 621
23f08617 622 get_be24(pb); /* flags */
f444b977 623 if (version == 1) {
7df22143 624 creation_time = get_be64(pb);
f444b977
BC
625 get_be64(pb);
626 } else {
7df22143 627 creation_time = get_be32(pb);
f444b977
BC
628 get_be32(pb); /* modification time */
629 }
7df22143 630 mov_metadata_creation_time(&st->metadata, creation_time);
5ca1d879 631
f444b977
BC
632 sc->time_scale = get_be32(pb);
633 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 634
b9a87c4d 635 lang = get_be16(pb); /* language */
49674dd0 636 if (ff_mov_lang_to_iso639(lang, language))
2ef6c124 637 av_metadata_set2(&st->metadata, "language", language, 0);
5ca1d879
ZK
638 get_be16(pb); /* quality */
639
640 return 0;
641}
642
ae628ec1 643static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879 644{
7df22143 645 time_t creation_time;
1175561e 646 int version = get_byte(pb); /* version */
23f08617 647 get_be24(pb); /* flags */
5ca1d879 648
1175561e 649 if (version == 1) {
7df22143 650 creation_time = get_be64(pb);
1175561e
BC
651 get_be64(pb);
652 } else {
7df22143 653 creation_time = get_be32(pb);
1175561e
BC
654 get_be32(pb); /* modification time */
655 }
7df22143 656 mov_metadata_creation_time(&c->fc->metadata, creation_time);
5ca1d879 657 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7 658
dfd2a005 659 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
f8c18cd7 660
1175561e 661 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
662 get_be32(pb); /* preferred scale */
663
664 get_be16(pb); /* preferred volume */
665
666 url_fskip(pb, 10); /* reserved */
667
668 url_fskip(pb, 36); /* display matrix */
669
670 get_be32(pb); /* preview time */
671 get_be32(pb); /* preview duration */
672 get_be32(pb); /* poster time */
673 get_be32(pb); /* selection time */
674 get_be32(pb); /* selection duration */
675 get_be32(pb); /* current time */
676 get_be32(pb); /* next track ID */
677
678 return 0;
679}
680
ae628ec1 681static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom)
9ed83b0a 682{
6a63ff19
BC
683 AVStream *st;
684
685 if (c->fc->nb_streams < 1)
686 return 0;
687 st = c->fc->streams[c->fc->nb_streams-1];
9ed83b0a 688
568e18b1
MN
689 if((uint64_t)atom.size > (1<<30))
690 return -1;
115329f1 691
9ed83b0a
ZK
692 // currently SVQ3 decoder expect full STSD header - so let's fake it
693 // this should be fixed and just SMI header should be passed
01f4895c 694 av_free(st->codec->extradata);
b014dd76
BC
695 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
696 if (!st->codec->extradata)
697 return AVERROR(ENOMEM);
17871a02
BC
698 st->codec->extradata_size = 0x5a + atom.size;
699 memcpy(st->codec->extradata, "SVQ3", 4); // fake
700 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
dfd2a005 701 av_dlog(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
702 return 0;
703}
5ca1d879 704
ae628ec1 705static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
de23f234 706{
6a63ff19
BC
707 AVStream *st;
708 int little_endian;
709
710 if (c->fc->nb_streams < 1)
711 return 0;
712 st = c->fc->streams[c->fc->nb_streams-1];
de23f234 713
6a63ff19 714 little_endian = get_be16(pb);
dfd2a005 715 av_dlog(c->fc, "enda %d\n", little_endian);
fa50a027 716 if (little_endian == 1) {
de23f234
BC
717 switch (st->codec->codec_id) {
718 case CODEC_ID_PCM_S24BE:
719 st->codec->codec_id = CODEC_ID_PCM_S24LE;
720 break;
721 case CODEC_ID_PCM_S32BE:
722 st->codec->codec_id = CODEC_ID_PCM_S32LE;
723 break;
a1ef2c4b
PR
724 case CODEC_ID_PCM_F32BE:
725 st->codec->codec_id = CODEC_ID_PCM_F32LE;
726 break;
727 case CODEC_ID_PCM_F64BE:
728 st->codec->codec_id = CODEC_ID_PCM_F64LE;
729 break;
de23f234
BC
730 default:
731 break;
732 }
733 }
734 return 0;
735}
736
014a5102 737/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
ae628ec1 738static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
de23f234 739{
27134437
BC
740 AVStream *st;
741 uint64_t size;
68bc33fa 742 uint8_t *buf;
27134437
BC
743
744 if (c->fc->nb_streams < 1) // will happen with jp2 files
745 return 0;
746 st= c->fc->streams[c->fc->nb_streams-1];
747 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
68bc33fa 748 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 749 return -1;
68bc33fa
BC
750 buf= av_realloc(st->codec->extradata, size);
751 if(!buf)
752 return -1;
753 st->codec->extradata= buf;
754 buf+= st->codec->extradata_size;
755 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
756 AV_WB32( buf , atom.size + 8);
757 AV_WL32( buf + 4, atom.type);
758 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
759 return 0;
760}
761
ae628ec1 762static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
d9b1c197 763{
6a63ff19
BC
764 AVStream *st;
765
766 if (c->fc->nb_streams < 1)
767 return 0;
768 st = c->fc->streams[c->fc->nb_streams-1];
d9b1c197
RT
769
770 if((uint64_t)atom.size > (1<<30))
771 return -1;
115329f1 772
ed19fafd
SS
773 if (st->codec->codec_id == CODEC_ID_QDM2 || st->codec->codec_id == CODEC_ID_QDMC) {
774 // pass all frma atom to codec, needed at least for QDMC and QDM2
3840147e 775 av_free(st->codec->extradata);
b014dd76
BC
776 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
777 if (!st->codec->extradata)
778 return AVERROR(ENOMEM);
3840147e 779 st->codec->extradata_size = atom.size;
b014dd76 780 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 781 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
782 if (mov_read_default(c, pb, atom) < 0)
783 return -1;
5c72cad8 784 } else
bb270c08 785 url_fskip(pb, atom.size);
d9b1c197
RT
786 return 0;
787}
788
bde24601
BC
789/**
790 * This function reads atom content and puts data in extradata without tag
791 * nor size unlike mov_read_extradata.
792 */
ae628ec1 793static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
169eb021 794{
6a63ff19
BC
795 AVStream *st;
796
797 if (c->fc->nb_streams < 1)
798 return 0;
799 st = c->fc->streams[c->fc->nb_streams-1];
169eb021 800
568e18b1
MN
801 if((uint64_t)atom.size > (1<<30))
802 return -1;
803
01f4895c 804 av_free(st->codec->extradata);
b014dd76
BC
805 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
806 if (!st->codec->extradata)
807 return AVERROR(ENOMEM);
01f4895c 808 st->codec->extradata_size = atom.size;
b014dd76 809 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
810 return 0;
811}
812
653d7aeb
MS
813/**
814 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
815 * but can have extradata appended at the end after the 40 bytes belonging
816 * to the struct.
817 */
ae628ec1 818static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
653d7aeb
MS
819{
820 AVStream *st;
821
822 if (c->fc->nb_streams < 1)
823 return 0;
824 if (atom.size <= 40)
825 return 0;
826 st = c->fc->streams[c->fc->nb_streams-1];
827
828 if((uint64_t)atom.size > (1<<30))
829 return -1;
830
831 av_free(st->codec->extradata);
832 st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE);
833 if (!st->codec->extradata)
834 return AVERROR(ENOMEM);
835 st->codec->extradata_size = atom.size - 40;
836 url_fskip(pb, 40);
837 get_buffer(pb, st->codec->extradata, atom.size - 40);
838 return 0;
839}
840
ae628ec1 841static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879 842{
6a63ff19
BC
843 AVStream *st;
844 MOVStreamContext *sc;
568e18b1 845 unsigned int i, entries;
5ca1d879 846
6a63ff19
BC
847 if (c->fc->nb_streams < 1)
848 return 0;
849 st = c->fc->streams[c->fc->nb_streams-1];
850 sc = st->priv_data;
851
5ca1d879 852 get_byte(pb); /* version */
23f08617 853 get_be24(pb); /* flags */
5ca1d879
ZK
854
855 entries = get_be32(pb);
115329f1 856
568e18b1
MN
857 if(entries >= UINT_MAX/sizeof(int64_t))
858 return -1;
115329f1 859
9a630c25 860 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879 861 if (!sc->chunk_offsets)
0d8f0abf
BC
862 return AVERROR(ENOMEM);
863 sc->chunk_count = entries;
864
37ffe34b
BC
865 if (atom.type == MKTAG('s','t','c','o'))
866 for(i=0; i<entries; i++)
5ca1d879 867 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
868 else if (atom.type == MKTAG('c','o','6','4'))
869 for(i=0; i<entries; i++)
5ca1d879 870 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 871 else
5ca1d879 872 return -1;
115329f1 873
5ca1d879
ZK
874 return 0;
875}
876
2288834f
BC
877/**
878 * Compute codec id for 'lpcm' tag.
879 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
880 */
2d423666 881enum CodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
2288834f
BC
882{
883 if (flags & 1) { // floating point
884 if (flags & 2) { // big endian
885 if (bps == 32) return CODEC_ID_PCM_F32BE;
7e4b3fb8 886 else if (bps == 64) return CODEC_ID_PCM_F64BE;
2288834f 887 } else {
7e4b3fb8
BC
888 if (bps == 32) return CODEC_ID_PCM_F32LE;
889 else if (bps == 64) return CODEC_ID_PCM_F64LE;
2288834f
BC
890 }
891 } else {
892 if (flags & 2) {
893 if (bps == 8)
894 // signed integer
895 if (flags & 4) return CODEC_ID_PCM_S8;
896 else return CODEC_ID_PCM_U8;
897 else if (bps == 16) return CODEC_ID_PCM_S16BE;
898 else if (bps == 24) return CODEC_ID_PCM_S24BE;
899 else if (bps == 32) return CODEC_ID_PCM_S32BE;
900 } else {
901 if (bps == 8)
902 if (flags & 4) return CODEC_ID_PCM_S8;
903 else return CODEC_ID_PCM_U8;
021b8ae3 904 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
905 else if (bps == 24) return CODEC_ID_PCM_S24LE;
906 else if (bps == 32) return CODEC_ID_PCM_S32LE;
907 }
908 }
fb65d2ca 909 return CODEC_ID_NONE;
2288834f
BC
910}
911
ae628ec1 912int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
5ca1d879 913{
6a63ff19
BC
914 AVStream *st;
915 MOVStreamContext *sc;
dc2cabd0 916 int j, pseudo_stream_id;
b595afaa 917
6a63ff19
BC
918 if (c->fc->nb_streams < 1)
919 return 0;
920 st = c->fc->streams[c->fc->nb_streams-1];
921 sc = st->priv_data;
922
117a9190
BC
923 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
924 //Parsing Sample description table
b6a17df4 925 enum CodecID id;
28155113 926 int dref_id = 1;
3491866a 927 MOVAtom a = { AV_RL32("stsd") };
bc5c918e 928 int64_t start_pos = url_ftell(pb);
bb270c08 929 int size = get_be32(pb); /* size */
baf9fb32 930 uint32_t format = get_le32(pb); /* data format */
5cd62665 931
28155113
BC
932 if (size >= 16) {
933 get_be32(pb); /* reserved */
934 get_be16(pb); /* reserved */
935 dref_id = get_be16(pb);
936 }
0e7eed09 937
744a9c75 938 if (st->codec->codec_tag &&
978677a7 939 st->codec->codec_tag != format &&
1a40491e 940 (c->fc->video_codec_id ? ff_codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 941 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 942 ){
7ce68923
DB
943 /* Multiple fourcc, we skip JPEG. This is not correct, we should
944 * export it as a separate AVStream but this needs a few changes
945 * in the MOV demuxer, patch welcome. */
adc73054 946 multiple_stsd:
285a3da9 947 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
948 url_fskip(pb, size - (url_ftell(pb) - start_pos));
949 continue;
950 }
adc73054
BC
951 /* we cannot demux concatenated h264 streams because of different extradata */
952 if (st->codec->codec_tag && st->codec->codec_tag == AV_RL32("avc1"))
953 goto multiple_stsd;
978677a7 954 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 955 sc->dref_id= dref_id;
e7cc4b52 956
bb270c08 957 st->codec->codec_tag = format;
1a40491e 958 id = ff_codec_get_id(codec_movaudio_tags, format);
86b61d42 959 if (id<=0 && ((format&0xFFFF) == 'm'+('s'<<8) || (format&0xFFFF) == 'T'+('S'<<8)))
8fc0162a 960 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format)&0xFFFF);
bca7db35 961
72415b2a
SS
962 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
963 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
964 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 965 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1a40491e 966 id = ff_codec_get_id(codec_movvideo_tags, format);
99487f42 967 if (id <= 0)
1a40491e 968 id = ff_codec_get_id(ff_codec_bmp_tags, format);
99487f42 969 if (id > 0)
72415b2a
SS
970 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
971 else if(st->codec->codec_type == AVMEDIA_TYPE_DATA){
1a40491e 972 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1e3c9307 973 if(id > 0)
72415b2a 974 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1e3c9307 975 }
99487f42
BC
976 }
977
dfd2a005 978 av_dlog(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
29c90869
BC
979 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
980 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 981
72415b2a 982 if(st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
08a186c6 983 unsigned int color_depth, len;
baf9fb32 984 int color_greyscale;
baf9fb32 985
01f4895c 986 st->codec->codec_id = id;
6cea494e
ZK
987 get_be16(pb); /* version */
988 get_be16(pb); /* revision level */
989 get_be32(pb); /* vendor */
990 get_be32(pb); /* temporal quality */
94472c1d 991 get_be32(pb); /* spatial quality */
3cb4ee51
BC
992
993 st->codec->width = get_be16(pb); /* width */
994 st->codec->height = get_be16(pb); /* height */
995
6cea494e
ZK
996 get_be32(pb); /* horiz resolution */
997 get_be32(pb); /* vert resolution */
998 get_be32(pb); /* data size, always 0 */
43612ffe 999 get_be16(pb); /* frames per samples */
f8c18cd7 1000
08a186c6
BC
1001 len = get_byte(pb); /* codec name, pascal string */
1002 if (len > 31)
1003 len = 31;
1004 mov_read_mac_string(c, pb, len, st->codec->codec_name, 32);
1005 if (len < 31)
1006 url_fskip(pb, 31 - len);
1007 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1008 if (!memcmp(st->codec->codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25))
1009 st->codec->codec_tag=MKTAG('I', '4', '2', '0');
5cd62665 1010
dd1c8f3e 1011 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
01f4895c 1012 st->codec->color_table_id = get_be16(pb); /* colortable id */
dfd2a005 1013 av_dlog(c->fc, "depth %d, ctab id %d\n",
dd1c8f3e 1014 st->codec->bits_per_coded_sample, st->codec->color_table_id);
b595afaa 1015 /* figure out the palette situation */
dd1c8f3e
LA
1016 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1017 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
b595afaa
MM
1018
1019 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 1020 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 1021 (color_depth == 8)) {
47e1d7ef
BC
1022 /* for palette traversal */
1023 unsigned int color_start, color_count, color_end;
1024 unsigned char r, g, b;
1025
e49da827 1026 st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
b595afaa 1027 if (color_greyscale) {
47e1d7ef 1028 int color_index, color_dec;
b595afaa 1029 /* compute the greyscale palette */
dd1c8f3e 1030 st->codec->bits_per_coded_sample = color_depth;
b595afaa
MM
1031 color_count = 1 << color_depth;
1032 color_index = 255;
1033 color_dec = 256 / (color_count - 1);
1034 for (j = 0; j < color_count; j++) {
1035 r = g = b = color_index;
e49da827 1036 st->codec->palctrl->palette[j] =
b595afaa
MM
1037 (r << 16) | (g << 8) | (b);
1038 color_index -= color_dec;
1039 if (color_index < 0)
1040 color_index = 0;
1041 }
71f36235 1042 } else if (st->codec->color_table_id) {
47e1d7ef 1043 const uint8_t *color_table;
b595afaa
MM
1044 /* if flag bit 3 is set, use the default palette */
1045 color_count = 1 << color_depth;
1046 if (color_depth == 2)
a90466f7 1047 color_table = ff_qt_default_palette_4;
b595afaa 1048 else if (color_depth == 4)
a90466f7 1049 color_table = ff_qt_default_palette_16;
b595afaa 1050 else
a90466f7 1051 color_table = ff_qt_default_palette_256;
b595afaa
MM
1052
1053 for (j = 0; j < color_count; j++) {
2121b160
RB
1054 r = color_table[j * 3 + 0];
1055 g = color_table[j * 3 + 1];
1056 b = color_table[j * 3 + 2];
e49da827 1057 st->codec->palctrl->palette[j] =
b595afaa
MM
1058 (r << 16) | (g << 8) | (b);
1059 }
b595afaa 1060 } else {
b595afaa
MM
1061 /* load the palette from the file */
1062 color_start = get_be32(pb);
1063 color_count = get_be16(pb);
1064 color_end = get_be16(pb);
8b35bd80
MM
1065 if ((color_start <= 255) &&
1066 (color_end <= 255)) {
9de2919c
MM
1067 for (j = color_start; j <= color_end; j++) {
1068 /* each R, G, or B component is 16 bits;
1069 * only use the top 8 bits; skip alpha bytes
1070 * up front */
1071 get_byte(pb);
1072 get_byte(pb);
1073 r = get_byte(pb);
1074 get_byte(pb);
1075 g = get_byte(pb);
1076 get_byte(pb);
1077 b = get_byte(pb);
1078 get_byte(pb);
e49da827 1079 st->codec->palctrl->palette[j] =
9de2919c 1080 (r << 16) | (g << 8) | (b);
8b35bd80 1081 }
b595afaa
MM
1082 }
1083 }
01f4895c 1084 st->codec->palctrl->palette_changed = 1;
e49da827 1085 }
72415b2a 1086 } else if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
aaef2bb3 1087 int bits_per_sample, flags;
de23f234 1088 uint16_t version = get_be16(pb);
b595afaa 1089
99487f42 1090 st->codec->codec_id = id;
de23f234
BC
1091 get_be16(pb); /* revision level */
1092 get_be32(pb); /* vendor */
6d6d7970 1093
de23f234 1094 st->codec->channels = get_be16(pb); /* channel count */
dfd2a005 1095 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
dd1c8f3e 1096 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
de23f234 1097
77c75437 1098 sc->audio_cid = get_be16(pb);
de23f234
BC
1099 get_be16(pb); /* packet size = 0 */
1100
1101 st->codec->sample_rate = ((get_be32(pb) >> 16));
1102
5ef3ad59 1103 //Read QT version 1 fields. In version 0 these do not exist.
dfd2a005 1104 av_dlog(c->fc, "version =%d, isom =%d\n",version,c->isom);
5ef3ad59
BC
1105 if(!c->isom) {
1106 if(version==1) {
1107 sc->samples_per_frame = get_be32(pb);
1108 get_be32(pb); /* bytes per packet */
1109 sc->bytes_per_frame = get_be32(pb);
1110 get_be32(pb); /* bytes per sample */
1111 } else if(version==2) {
1112 get_be32(pb); /* sizeof struct only */
1113 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
1114 st->codec->channels = get_be32(pb);
1115 get_be32(pb); /* always 0x7F000000 */
dd1c8f3e 1116 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
6866dd12 1117 flags = get_be32(pb); /* lpcm format specific flag */
9184d53a
BC
1118 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
1119 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f 1120 if (format == MKTAG('l','p','c','m'))
2d423666 1121 st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
5ef3ad59
BC
1122 }
1123 }
1124
de23f234 1125 switch (st->codec->codec_id) {
b72708f8
BC
1126 case CODEC_ID_PCM_S8:
1127 case CODEC_ID_PCM_U8:
dd1c8f3e 1128 if (st->codec->bits_per_coded_sample == 16)
b72708f8
BC
1129 st->codec->codec_id = CODEC_ID_PCM_S16BE;
1130 break;
0dd39bfe 1131 case CODEC_ID_PCM_S16LE:
de23f234 1132 case CODEC_ID_PCM_S16BE:
dd1c8f3e 1133 if (st->codec->bits_per_coded_sample == 8)
de23f234 1134 st->codec->codec_id = CODEC_ID_PCM_S8;
dd1c8f3e 1135 else if (st->codec->bits_per_coded_sample == 24)
6b477e1b
BC
1136 st->codec->codec_id =
1137 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
1138 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 1139 break;
53152765
BC
1140 /* set values for old format before stsd version 1 appeared */
1141 case CODEC_ID_MACE3:
1142 sc->samples_per_frame = 6;
1143 sc->bytes_per_frame = 2*st->codec->channels;
1144 break;
1145 case CODEC_ID_MACE6:
1146 sc->samples_per_frame = 6;
1147 sc->bytes_per_frame = 1*st->codec->channels;
1148 break;
1149 case CODEC_ID_ADPCM_IMA_QT:
1150 sc->samples_per_frame = 64;
1151 sc->bytes_per_frame = 34*st->codec->channels;
1152 break;
cc326d2b
BC
1153 case CODEC_ID_GSM:
1154 sc->samples_per_frame = 160;
1155 sc->bytes_per_frame = 33;
1156 break;
de23f234
BC
1157 default:
1158 break;
6d6d7970 1159 }
14342fd5 1160
9770089d
BC
1161 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1162 if (bits_per_sample) {
dd1c8f3e 1163 st->codec->bits_per_coded_sample = bits_per_sample;
9770089d
BC
1164 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1165 }
72415b2a 1166 } else if(st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
58e9f2ed
DC
1167 // ttxt stsd contains display flags, justification, background
1168 // color, fonts, and default styles, so fake an atom to read it
1169 MOVAtom fake_atom = { .size = size - (url_ftell(pb) - start_pos) };
fb9ac654 1170 if (format != AV_RL32("mp4s")) // mp4s contains a regular esds atom
3dd36041 1171 mov_read_glbl(c, pb, fake_atom);
cc8d87b7 1172 st->codec->codec_id= id;
6cdbff63
DC
1173 st->codec->width = sc->width;
1174 st->codec->height = sc->height;
de23f234
BC
1175 } else {
1176 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
1177 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 1178 }
de23f234
BC
1179 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
1180 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
1181 if (a.size > 8) {
1182 if (mov_read_default(c, pb, a) < 0)
1183 return -1;
1184 } else if (a.size > 0)
de23f234 1185 url_fskip(pb, a.size);
6cea494e 1186 }
115329f1 1187
72415b2a 1188 if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 1189 st->codec->sample_rate= sc->time_scale;
e31bd3e3 1190
d00f8e17 1191 /* special codec parameters handling */
e31bd3e3 1192 switch (st->codec->codec_id) {
b250f9c6 1193#if CONFIG_DV_DEMUXER
b60c0454 1194 case CODEC_ID_DVAUDIO:
8e2fd8e1 1195 c->dv_fctx = avformat_alloc_context();
b60c0454
BC
1196 c->dv_demux = dv_init_demux(c->dv_fctx);
1197 if (!c->dv_demux) {
1198 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1199 return -1;
1200 }
1201 sc->dv_audio_container = 1;
1202 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1203 break;
989ac5a6 1204#endif
b95319a2 1205 /* no ifdef since parameters are always those */
3f78a3a9 1206 case CODEC_ID_QCELP:
17ad7b24
BC
1207 // force sample rate for qcelp when not stored in mov
1208 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1209 st->codec->sample_rate = 8000;
73b458e3 1210 st->codec->frame_size= 160;
061f407e 1211 st->codec->channels= 1; /* really needed */
73b458e3 1212 break;
b95319a2 1213 case CODEC_ID_AMR_NB:
aeb62788 1214 case CODEC_ID_AMR_WB:
cfb5a2ab 1215 st->codec->frame_size= sc->samples_per_frame;
b95319a2 1216 st->codec->channels= 1; /* really needed */
f06188d5 1217 /* force sample rate for amr, stsd in 3gp does not store sample rate */
5b9ce252 1218 if (st->codec->codec_id == CODEC_ID_AMR_NB)
f06188d5 1219 st->codec->sample_rate = 8000;
5b9ce252
BC
1220 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
1221 st->codec->sample_rate = 16000;
b95319a2 1222 break;
a41104f8 1223 case CODEC_ID_MP2:
c59f24e6 1224 case CODEC_ID_MP3:
72415b2a 1225 st->codec->codec_type = AVMEDIA_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 1226 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 1227 break;
5610f20e 1228 case CODEC_ID_GSM:
74e9b9ae
BC
1229 case CODEC_ID_ADPCM_MS:
1230 case CODEC_ID_ADPCM_IMA_WAV:
f2589642 1231 st->codec->frame_size = sc->samples_per_frame;
74e9b9ae
BC
1232 st->codec->block_align = sc->bytes_per_frame;
1233 break;
be511925 1234 case CODEC_ID_ALAC:
a1532824 1235 if (st->codec->extradata_size == 36) {
364df7b7
BC
1236 st->codec->frame_size = AV_RB32(st->codec->extradata+12);
1237 st->codec->channels = AV_RB8 (st->codec->extradata+21);
c6f1e29a 1238 st->codec->sample_rate = AV_RB32(st->codec->extradata+32);
a1532824 1239 }
be511925 1240 break;
e31bd3e3
BC
1241 default:
1242 break;
1243 }
5cd62665 1244
6cea494e
ZK
1245 return 0;
1246}
1247
ae628ec1 1248static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
dc2cabd0
MS
1249{
1250 int entries;
1251
1252 get_byte(pb); /* version */
1253 get_be24(pb); /* flags */
1254 entries = get_be32(pb);
1255
1256 return ff_mov_read_stsd_entries(c, pb, entries);
1257}
1258
ae628ec1 1259static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6cea494e 1260{
6a63ff19
BC
1261 AVStream *st;
1262 MOVStreamContext *sc;
568e18b1 1263 unsigned int i, entries;
b6a17df4 1264
6a63ff19
BC
1265 if (c->fc->nb_streams < 1)
1266 return 0;
1267 st = c->fc->streams[c->fc->nb_streams-1];
1268 sc = st->priv_data;
1269
6cea494e 1270 get_byte(pb); /* version */
23f08617 1271 get_be24(pb); /* flags */
6cea494e
ZK
1272
1273 entries = get_be32(pb);
115329f1 1274
dfd2a005 1275 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
f8c18cd7 1276
0d8f0abf
BC
1277 if(entries >= UINT_MAX / sizeof(*sc->stsc_data))
1278 return -1;
04e06cfa
BC
1279 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1280 if (!sc->stsc_data)
0d8f0abf
BC
1281 return AVERROR(ENOMEM);
1282 sc->stsc_count = entries;
1283
6cea494e 1284 for(i=0; i<entries; i++) {
04e06cfa
BC
1285 sc->stsc_data[i].first = get_be32(pb);
1286 sc->stsc_data[i].count = get_be32(pb);
1287 sc->stsc_data[i].id = get_be32(pb);
6cea494e
ZK
1288 }
1289 return 0;
1290}
1291
ae628ec1 1292static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
171a3531
BC
1293{
1294 AVStream *st;
1295 MOVStreamContext *sc;
1296 unsigned i, entries;
1297
1298 if (c->fc->nb_streams < 1)
1299 return 0;
1300 st = c->fc->streams[c->fc->nb_streams-1];
1301 sc = st->priv_data;
1302
1303 get_be32(pb); // version + flags
1304
1305 entries = get_be32(pb);
1306 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1307 return -1;
1308 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1309 if (!sc->stps_data)
1310 return AVERROR(ENOMEM);
1311 sc->stps_count = entries;
1312
1313 for (i = 0; i < entries; i++) {
1314 sc->stps_data[i] = get_be32(pb);
dfd2a005 1315 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
171a3531
BC
1316 }
1317
1318 return 0;
1319}
1320
ae628ec1 1321static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
247d56f5 1322{
6a63ff19
BC
1323 AVStream *st;
1324 MOVStreamContext *sc;
568e18b1 1325 unsigned int i, entries;
247d56f5 1326
6a63ff19
BC
1327 if (c->fc->nb_streams < 1)
1328 return 0;
1329 st = c->fc->streams[c->fc->nb_streams-1];
1330 sc = st->priv_data;
1331
247d56f5 1332 get_byte(pb); /* version */
23f08617 1333 get_be24(pb); /* flags */
247d56f5
BB
1334
1335 entries = get_be32(pb);
115329f1 1336
dfd2a005 1337 av_dlog(c->fc, "keyframe_count = %d\n", entries);
0d8f0abf 1338
1c02d96f 1339 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1340 return -1;
1c02d96f 1341 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5 1342 if (!sc->keyframes)
0d8f0abf
BC
1343 return AVERROR(ENOMEM);
1344 sc->keyframe_count = entries;
1345
247d56f5
BB
1346 for(i=0; i<entries; i++) {
1347 sc->keyframes[i] = get_be32(pb);
dfd2a005 1348 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1349 }
1350 return 0;
1351}
1352
ae628ec1 1353static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
6cea494e 1354{
6a63ff19
BC
1355 AVStream *st;
1356 MOVStreamContext *sc;
bd27eed6
AC
1357 unsigned int i, entries, sample_size, field_size, num_bytes;
1358 GetBitContext gb;
1359 unsigned char* buf;
b6a17df4 1360
6a63ff19
BC
1361 if (c->fc->nb_streams < 1)
1362 return 0;
1363 st = c->fc->streams[c->fc->nb_streams-1];
1364 sc = st->priv_data;
1365
6cea494e 1366 get_byte(pb); /* version */
23f08617 1367 get_be24(pb); /* flags */
5cd62665 1368
bd27eed6 1369 if (atom.type == MKTAG('s','t','s','z')) {
d0dab0ec
AC
1370 sample_size = get_be32(pb);
1371 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1372 sc->sample_size = sample_size;
1373 field_size = 32;
bd27eed6
AC
1374 } else {
1375 sample_size = 0;
1376 get_be24(pb); /* reserved */
1377 field_size = get_byte(pb);
1378 }
6cea494e 1379 entries = get_be32(pb);
0d8f0abf 1380
dfd2a005 1381 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
568e18b1 1382
6cea494e 1383 sc->sample_count = entries;
b72708f8
BC
1384 if (sample_size)
1385 return 0;
1386
bd27eed6
AC
1387 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1388 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1389 return -1;
1390 }
1391
e4bc8af1 1392 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
0d8f0abf 1393 return -1;
1c02d96f 1394 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4 1395 if (!sc->sample_sizes)
0d8f0abf
BC
1396 return AVERROR(ENOMEM);
1397
bd27eed6
AC
1398 num_bytes = (entries*field_size+4)>>3;
1399
08a5b4e9 1400 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
bd27eed6
AC
1401 if (!buf) {
1402 av_freep(&sc->sample_sizes);
1403 return AVERROR(ENOMEM);
1404 }
1405
1406 if (get_buffer(pb, buf, num_bytes) < num_bytes) {
1407 av_freep(&sc->sample_sizes);
1408 av_free(buf);
1409 return -1;
1410 }
1411
1412 init_get_bits(&gb, buf, 8*num_bytes);
1413
eb61405a 1414 for(i=0; i<entries; i++)
bd27eed6
AC
1415 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
1416
1417 av_free(buf);
6cea494e
ZK
1418 return 0;
1419}
1420
ae628ec1 1421static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
0147f198 1422{
6a63ff19
BC
1423 AVStream *st;
1424 MOVStreamContext *sc;
568e18b1 1425 unsigned int i, entries;
d957696f
MN
1426 int64_t duration=0;
1427 int64_t total_sample_count=0;
b6a17df4 1428
6a63ff19
BC
1429 if (c->fc->nb_streams < 1)
1430 return 0;
1431 st = c->fc->streams[c->fc->nb_streams-1];
1432 sc = st->priv_data;
1433
0147f198 1434 get_byte(pb); /* version */
23f08617 1435 get_be24(pb); /* flags */
0147f198 1436 entries = get_be32(pb);
0d8f0abf 1437
dfd2a005 1438 av_dlog(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
0d8f0abf 1439
c3e92a6c 1440 if(entries >= UINT_MAX / sizeof(*sc->stts_data))
568e18b1 1441 return -1;
c3e92a6c 1442 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
c1da59fa 1443 if (!sc->stts_data)
0d8f0abf
BC
1444 return AVERROR(ENOMEM);
1445 sc->stts_count = entries;
cd7352d5 1446
0147f198 1447 for(i=0; i<entries; i++) {
cd461d48
MN
1448 int sample_duration;
1449 int sample_count;
0147f198 1450
891f64b3 1451 sample_count=get_be32(pb);
0147f198 1452 sample_duration = get_be32(pb);
cd7352d5
MN
1453 sc->stts_data[i].count= sample_count;
1454 sc->stts_data[i].duration= sample_duration;
1455
dfd2a005 1456 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1457
7e815047 1458 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1459 total_sample_count+=sample_count;
891f64b3 1460 }
1461
961e0ccd
MN
1462 st->nb_frames= total_sample_count;
1463 if(duration)
1464 st->duration= duration;
0147f198
FR
1465 return 0;
1466}
1467
ae628ec1 1468static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
c4ac052b 1469{
6a63ff19
BC
1470 AVStream *st;
1471 MOVStreamContext *sc;
c4ac052b
MN
1472 unsigned int i, entries;
1473
6a63ff19
BC
1474 if (c->fc->nb_streams < 1)
1475 return 0;
1476 st = c->fc->streams[c->fc->nb_streams-1];
1477 sc = st->priv_data;
1478
c4ac052b 1479 get_byte(pb); /* version */
23f08617 1480 get_be24(pb); /* flags */
c4ac052b 1481 entries = get_be32(pb);
0d8f0abf 1482
dfd2a005 1483 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
0d8f0abf 1484
c3e92a6c 1485 if(entries >= UINT_MAX / sizeof(*sc->ctts_data))
c4ac052b 1486 return -1;
c3e92a6c 1487 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
c1da59fa 1488 if (!sc->ctts_data)
0d8f0abf
BC
1489 return AVERROR(ENOMEM);
1490 sc->ctts_count = entries;
4e5ef14f 1491
c4ac052b 1492 for(i=0; i<entries; i++) {
70a61ed4
MN
1493 int count =get_be32(pb);
1494 int duration =get_be32(pb);
1495
1496 sc->ctts_data[i].count = count;
1497 sc->ctts_data[i].duration= duration;
e7452721
BC
1498 if (duration < 0)
1499 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
c4ac052b 1500 }
e7452721 1501
dfd2a005 1502 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
e7452721 1503
c4ac052b
MN
1504 return 0;
1505}
1506
1e77810d
BC
1507static void mov_build_index(MOVContext *mov, AVStream *st)
1508{
1509 MOVStreamContext *sc = st->priv_data;
bc5c918e 1510 int64_t current_offset;
1e77810d
BC
1511 int64_t current_dts = 0;
1512 unsigned int stts_index = 0;
1513 unsigned int stsc_index = 0;
1514 unsigned int stss_index = 0;
171a3531 1515 unsigned int stps_index = 0;
1e77810d 1516 unsigned int i, j;
c5898e86 1517 uint64_t stream_size = 0;
1e77810d 1518
baf2ffd3 1519 /* adjust first dts according to edit list */
c3024f9e 1520 if (sc->time_offset && mov->time_scale > 0) {
2ac736a6 1521 int rescaled = sc->time_offset < 0 ? av_rescale(sc->time_offset, sc->time_scale, mov->time_scale) : sc->time_offset;
bbe46bc4 1522 current_dts = -rescaled;
4af7166f
BC
1523 if (sc->ctts_data && sc->stts_data &&
1524 sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
f03a081d
BC
1525 /* more than 16 frames delay, dts are likely wrong
1526 this happens with files created by iMovie */
1527 sc->wrong_dts = 1;
1528 st->codec->has_b_frames = 1;
1529 }
baf2ffd3
BC
1530 }
1531
d3bc61ac 1532 /* only use old uncompressed audio chunk demuxing when stts specifies it */
72415b2a 1533 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
d3bc61ac 1534 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1535 unsigned int current_sample = 0;
1536 unsigned int stts_sample = 0;
171a3531 1537 unsigned int sample_size;
1e77810d
BC
1538 unsigned int distance = 0;
1539 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1540
4b29ed39
BC
1541 current_dts -= sc->dts_shift;
1542
987e857f
BC
1543 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries))
1544 return;
1545 st->index_entries = av_malloc(sc->sample_count*sizeof(*st->index_entries));
1546 if (!st->index_entries)
1547 return;
1548 st->index_entries_allocated_size = sc->sample_count*sizeof(*st->index_entries);
1549
1e77810d
BC
1550 for (i = 0; i < sc->chunk_count; i++) {
1551 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1552 if (stsc_index + 1 < sc->stsc_count &&
1553 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1554 stsc_index++;
04e06cfa 1555 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
171a3531 1556 int keyframe = 0;
1e77810d
BC
1557 if (current_sample >= sc->sample_count) {
1558 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
f0f2218d 1559 return;
1e77810d 1560 }
171a3531
BC
1561
1562 if (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index]) {
1563 keyframe = 1;
1e77810d
BC
1564 if (stss_index + 1 < sc->keyframe_count)
1565 stss_index++;
171a3531
BC
1566 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
1567 keyframe = 1;
1568 if (stps_index + 1 < sc->stps_count)
1569 stps_index++;
1e77810d 1570 }
171a3531
BC
1571 if (keyframe)
1572 distance = 0;
1e77810d 1573 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1574 if(sc->pseudo_stream_id == -1 ||
04e06cfa 1575 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
987e857f
BC
1576 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
1577 e->pos = current_offset;
1578 e->timestamp = current_dts;
1579 e->size = sample_size;
1580 e->min_distance = distance;
1581 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
dfd2a005 1582 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
585dac65
BC
1583 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1584 current_offset, current_dts, sample_size, distance, keyframe);
1585 }
6c00a9de 1586
1e77810d 1587 current_offset += sample_size;
c5898e86 1588 stream_size += sample_size;
bbe46bc4 1589 current_dts += sc->stts_data[stts_index].duration;
1e77810d
BC
1590 distance++;
1591 stts_sample++;
1592 current_sample++;
1593 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1594 stts_sample = 0;
1595 stts_index++;
1596 }
1597 }
1598 }
fedb1eca
BC
1599 if (st->duration > 0)
1600 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
7e69621f 1601 } else {
987e857f 1602 unsigned chunk_samples, total = 0;
7e69621f 1603
987e857f
BC
1604 // compute total chunk count
1605 for (i = 0; i < sc->stsc_count; i++) {
1606 unsigned count, chunk_count;
7e69621f 1607
987e857f 1608 chunk_samples = sc->stsc_data[i].count;
7e69621f
BC
1609 if (sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
1610 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
1611 return;
1612 }
1613
987e857f
BC
1614 if (sc->samples_per_frame >= 160) { // gsm
1615 count = chunk_samples / sc->samples_per_frame;
1616 } else if (sc->samples_per_frame > 1) {
1617 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
1618 count = (chunk_samples+samples-1) / samples;
1619 } else {
1620 count = (chunk_samples+1023) / 1024;
1621 }
1622
1623 if (i < sc->stsc_count - 1)
1624 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
1625 else
1626 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
1627 total += chunk_count * count;
1628 }
1629
dfd2a005 1630 av_dlog(mov->fc, "chunk count %d\n", total);
987e857f
BC
1631 if (total >= UINT_MAX / sizeof(*st->index_entries))
1632 return;
1633 st->index_entries = av_malloc(total*sizeof(*st->index_entries));
1634 if (!st->index_entries)
1635 return;
1636 st->index_entries_allocated_size = total*sizeof(*st->index_entries);
1637
1638 // populate index
1639 for (i = 0; i < sc->chunk_count; i++) {
1640 current_offset = sc->chunk_offsets[i];
1641 if (stsc_index + 1 < sc->stsc_count &&
1642 i + 1 == sc->stsc_data[stsc_index + 1].first)
1643 stsc_index++;
1644 chunk_samples = sc->stsc_data[stsc_index].count;
1645
7e69621f 1646 while (chunk_samples > 0) {
987e857f 1647 AVIndexEntry *e;
7e69621f
BC
1648 unsigned size, samples;
1649
1650 if (sc->samples_per_frame >= 160) { // gsm
1651 samples = sc->samples_per_frame;
1652 size = sc->bytes_per_frame;
1653 } else {
1654 if (sc->samples_per_frame > 1) {
1655 samples = FFMIN((1024 / sc->samples_per_frame)*
1656 sc->samples_per_frame, chunk_samples);
1657 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
1e77810d 1658 } else {
7e69621f
BC
1659 samples = FFMIN(1024, chunk_samples);
1660 size = samples * sc->sample_size;
1e77810d
BC
1661 }
1662 }
7e69621f 1663
987e857f
BC
1664 if (st->nb_index_entries >= total) {
1665 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
1666 return;
1667 }
1668 e = &st->index_entries[st->nb_index_entries++];
1669 e->pos = current_offset;
1670 e->timestamp = current_dts;
1671 e->size = size;
1672 e->min_distance = 0;
1673 e->flags = AVINDEX_KEYFRAME;
dfd2a005 1674 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
117a9190 1675 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
7e69621f
BC
1676 size, samples);
1677
1678 current_offset += size;
bbe46bc4 1679 current_dts += samples;
7e69621f 1680 chunk_samples -= samples;
1e77810d
BC
1681 }
1682 }
1683 }
1e77810d 1684}
bd991df2 1685
ae628ec1 1686static int mov_open_dref(AVIOContext **pb, char *src, MOVDref *ref)
adeb9071 1687{
6a245905
MN
1688 /* try relative path, we do not try the absolute because it can leak information about our
1689 system to an attacker */
adeb9071
BC
1690 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
1691 char filename[1024];
1692 char *src_path;
1693 int i, l;
1694
1695 /* find a source dir */
1696 src_path = strrchr(src, '/');
1697 if (src_path)
1698 src_path++;
1699 else
1700 src_path = src;
1701
1702 /* find a next level down to target */
1703 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
1704 if (ref->path[l] == '/') {
1705 if (i == ref->nlvl_to - 1)
1706 break;
1707 else
1708 i++;
1709 }
1710
1711 /* compose filename if next level down to target was found */
bbdf0d22 1712 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
adeb9071
BC
1713 memcpy(filename, src, src_path - src);
1714 filename[src_path - src] = 0;
1715
1716 for (i = 1; i < ref->nlvl_from; i++)
1717 av_strlcat(filename, "../", 1024);
1718
1719 av_strlcat(filename, ref->path + l + 1, 1024);
1720
1721 if (!url_fopen(pb, filename, URL_RDONLY))
1722 return 0;
1723 }
1724 }
1725
1726 return AVERROR(ENOENT);
628b16f4 1727}
adeb9071 1728
ae628ec1 1729static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1730{
1731 AVStream *st;
1732 MOVStreamContext *sc;
bd991df2 1733 int ret;
5ca1d879 1734
5ca1d879 1735 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1736 if (!st) return AVERROR(ENOMEM);
9a630c25 1737 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1738 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1739
5ca1d879 1740 st->priv_data = sc;
72415b2a 1741 st->codec->codec_type = AVMEDIA_TYPE_DATA;
64d50fa5 1742 sc->ffindex = st->index;
5ca1d879 1743
bd991df2
BC
1744 if ((ret = mov_read_default(c, pb, atom)) < 0)
1745 return ret;
1746
1747 /* sanity checks */
6c00a9de
BC
1748 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
1749 (!sc->sample_size && !sc->sample_count))) {
6282c5f4
BC
1750 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1751 st->index);
bd991df2
BC
1752 return 0;
1753 }
6c00a9de 1754
c3024f9e 1755 if (sc->time_scale <= 0) {
507330b9 1756 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", st->index);
6c00a9de 1757 sc->time_scale = c->time_scale;
c3024f9e 1758 if (sc->time_scale <= 0)
507330b9
BC
1759 sc->time_scale = 1;
1760 }
6c00a9de 1761
bbe46bc4 1762 av_set_pts_info(st, 64, 1, sc->time_scale);
bd991df2 1763
72415b2a 1764 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
5b4f5e5d
BC
1765 !st->codec->frame_size && sc->stts_count == 1) {
1766 st->codec->frame_size = av_rescale(sc->stts_data[0].duration,
1767 st->codec->sample_rate, sc->time_scale);
dfd2a005 1768 av_dlog(c->fc, "frame size %d\n", st->codec->frame_size);
5b4f5e5d 1769 }
bd991df2 1770
bd991df2
BC
1771 mov_build_index(c, st);
1772
1773 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
adeb9071
BC
1774 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
1775 if (mov_open_dref(&sc->pb, c->fc->filename, dref) < 0)
1776 av_log(c->fc, AV_LOG_ERROR,
1777 "stream %d, error opening alias: path='%s', dir='%s', "
1778 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
1779 st->index, dref->path, dref->dir, dref->filename,
1780 dref->volume, dref->nlvl_from, dref->nlvl_to);
bd991df2
BC
1781 } else
1782 sc->pb = c->fc->pb;
1783
72415b2a 1784 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
525fcb27
AW
1785 if (!st->sample_aspect_ratio.num &&
1786 (st->codec->width != sc->width || st->codec->height != sc->height)) {
1787 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
1788 ((double)st->codec->width * sc->height), INT_MAX);
c3aeaa54
BC
1789 }
1790
1791 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
1792 sc->time_scale*st->nb_frames, st->duration, INT_MAX);
f6253caf
BC
1793
1794 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
1795 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
1796 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
c9566115
BC
1797 }
1798
bd991df2 1799 switch (st->codec->codec_id) {
b250f9c6 1800#if CONFIG_H261_DECODER
bd991df2
BC
1801 case CODEC_ID_H261:
1802#endif
b250f9c6 1803#if CONFIG_H263_DECODER
bd991df2
BC
1804 case CODEC_ID_H263:
1805#endif
a0dd3c00
BC
1806#if CONFIG_H264_DECODER
1807 case CODEC_ID_H264:
1808#endif
b250f9c6 1809#if CONFIG_MPEG4_DECODER
bd991df2
BC
1810 case CODEC_ID_MPEG4:
1811#endif
6c00a9de 1812 st->codec->width = 0; /* let decoder init width/height */
bd991df2
BC
1813 st->codec->height= 0;
1814 break;
bd991df2 1815 }
f9900374
BC
1816
1817 /* Do not need those anymore. */
1818 av_freep(&sc->chunk_offsets);
04e06cfa 1819 av_freep(&sc->stsc_data);
f9900374
BC
1820 av_freep(&sc->sample_sizes);
1821 av_freep(&sc->keyframes);
1822 av_freep(&sc->stts_data);
171a3531 1823 av_freep(&sc->stps_data);
f9900374 1824
bd991df2 1825 return 0;
5ca1d879
ZK
1826}
1827
ae628ec1 1828static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
51c15201
BC
1829{
1830 int ret;
1831 c->itunes_metadata = 1;
1832 ret = mov_read_default(c, pb, atom);
1833 c->itunes_metadata = 0;
1834 return ret;
1835}
1836
ae628ec1 1837static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
51c15201 1838{
df8843c6
BC
1839 while (atom.size > 8) {
1840 uint32_t tag = get_le32(pb);
1841 atom.size -= 4;
1842 if (tag == MKTAG('h','d','l','r')) {
1843 url_fseek(pb, -8, SEEK_CUR);
1844 atom.size += 8;
1845 return mov_read_default(c, pb, atom);
1846 }
1847 }
1848 return 0;
51c15201
BC
1849}
1850
ae628ec1 1851static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879 1852{
ec072669
JS
1853 int i;
1854 int width;
1855 int height;
1856 int64_t disp_transform[2];
1857 int display_matrix[3][2];
6a63ff19
BC
1858 AVStream *st;
1859 MOVStreamContext *sc;
1860 int version;
1861
1862 if (c->fc->nb_streams < 1)
1863 return 0;
1864 st = c->fc->streams[c->fc->nb_streams-1];
1865 sc = st->priv_data;
5ca1d879 1866
6a63ff19 1867 version = get_byte(pb);
23f08617 1868 get_be24(pb); /* flags */
5ca1d879
ZK
1869 /*
1870 MOV_TRACK_ENABLED 0x0001
1871 MOV_TRACK_IN_MOVIE 0x0002
1872 MOV_TRACK_IN_PREVIEW 0x0004
1873 MOV_TRACK_IN_POSTER 0x0008
1874 */
1875
1175561e
BC
1876 if (version == 1) {
1877 get_be64(pb);
1878 get_be64(pb);
1879 } else {
1880 get_be32(pb); /* creation time */
1881 get_be32(pb); /* modification time */
1882 }
5ca1d879
ZK
1883 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1884 get_be32(pb); /* reserved */
fcdd622c 1885
117a9190
BC
1886 /* highlevel (considering edits) duration in movie timebase */
1887 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1888 get_be32(pb); /* reserved */
1889 get_be32(pb); /* reserved */
1890
1891 get_be16(pb); /* layer */
1892 get_be16(pb); /* alternate group */
1893 get_be16(pb); /* volume */
1894 get_be16(pb); /* reserved */
1895
ec072669
JS
1896 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1897 // they're kept in fixed point format through all calculations
1898 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1899 for (i = 0; i < 3; i++) {
1900 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1901 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1902 get_be32(pb); // 2.30 fixed point (not used)
1903 }
5ca1d879 1904
ec072669
JS
1905 width = get_be32(pb); // 16.16 fixed point track width
1906 height = get_be32(pb); // 16.16 fixed point track height
6cdbff63
DC
1907 sc->width = width >> 16;
1908 sc->height = height >> 16;
ec072669 1909
d862fce7 1910 // transform the display width/height according to the matrix
ec072669 1911 // skip this if the display matrix is the default identity matrix
d862fce7 1912 // or if it is rotating the picture, ex iPhone 3GS
ec072669
JS
1913 // to keep the same scale, use [width height 1<<16]
1914 if (width && height &&
d862fce7
BC
1915 ((display_matrix[0][0] != 65536 ||
1916 display_matrix[1][1] != 65536) &&
1917 !display_matrix[0][1] &&
1918 !display_matrix[1][0] &&
1919 !display_matrix[2][0] && !display_matrix[2][1])) {
ec072669
JS
1920 for (i = 0; i < 2; i++)
1921 disp_transform[i] =
1922 (int64_t) width * display_matrix[0][i] +
1923 (int64_t) height * display_matrix[1][i] +
1924 ((int64_t) display_matrix[2][i] << 16);
1925
1926 //sample aspect ratio is new width/height divided by old width/height
59729451 1927 st->sample_aspect_ratio = av_d2q(
ec072669
JS
1928 ((double) disp_transform[0] * height) /
1929 ((double) disp_transform[1] * width), INT_MAX);
1930 }
5ca1d879
ZK
1931 return 0;
1932}
1933
ae628ec1 1934static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
61aedb0f
BC
1935{
1936 MOVFragment *frag = &c->fragment;
1937 MOVTrackExt *trex = NULL;
1938 int flags, track_id, i;
1939
1940 get_byte(pb); /* version */
1941 flags = get_be24(pb);
1942
1943 track_id = get_be32(pb);
63581eb1 1944 if (!track_id)
61aedb0f
BC
1945 return -1;
1946 frag->track_id = track_id;
1947 for (i = 0; i < c->trex_count; i++)
1948 if (c->trex_data[i].track_id == frag->track_id) {
1949 trex = &c->trex_data[i];
1950 break;
1951 }
1952 if (!trex) {
1953 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1954 return -1;
1955 }
1956
1957 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1958 else frag->base_data_offset = frag->moof_offset;
1959 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1960 else frag->stsd_id = trex->stsd_id;
1961
1962 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1963 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1964 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
dfd2a005 1965 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
61aedb0f
BC
1966 return 0;
1967}
1968
ae628ec1 1969static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
7221579b
DC
1970{
1971 c->chapter_track = get_be32(pb);
1972 return 0;
1973}
1974
ae628ec1 1975static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
61aedb0f
BC
1976{
1977 MOVTrackExt *trex;
1978
1979 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1980 return -1;
0d8f0abf
BC
1981 trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1982 if (!trex)
61aedb0f 1983 return AVERROR(ENOMEM);
0d8f0abf 1984 c->trex_data = trex;
61aedb0f
BC
1985 trex = &c->trex_data[c->trex_count++];
1986 get_byte(pb); /* version */
1987 get_be24(pb); /* flags */
1988 trex->track_id = get_be32(pb);
1989 trex->stsd_id = get_be32(pb);
1990 trex->duration = get_be32(pb);
1991 trex->size = get_be32(pb);
1992 trex->flags = get_be32(pb);
1993 return 0;
1994}
1995
ae628ec1 1996static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
61aedb0f
BC
1997{
1998 MOVFragment *frag = &c->fragment;
63581eb1 1999 AVStream *st = NULL;
44e43aab 2000 MOVStreamContext *sc;
61aedb0f
BC
2001 uint64_t offset;
2002 int64_t dts;
2003 int data_offset = 0;
2004 unsigned entries, first_sample_flags = frag->flags;
2005 int flags, distance, i;
2006
63581eb1
AC
2007 for (i = 0; i < c->fc->nb_streams; i++) {
2008 if (c->fc->streams[i]->id == frag->track_id) {
2009 st = c->fc->streams[i];
2010 break;
2011 }
2012 }
2013 if (!st) {
2014 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
44e43aab 2015 return -1;
63581eb1 2016 }
44e43aab 2017 sc = st->priv_data;
61aedb0f
BC
2018 if (sc->pseudo_stream_id+1 != frag->stsd_id)
2019 return 0;
61aedb0f
BC
2020 get_byte(pb); /* version */
2021 flags = get_be24(pb);
2022 entries = get_be32(pb);
dfd2a005 2023 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
61aedb0f
BC
2024 if (flags & 0x001) data_offset = get_be32(pb);
2025 if (flags & 0x004) first_sample_flags = get_be32(pb);
2026 if (flags & 0x800) {
0d8f0abf 2027 MOVStts *ctts_data;
61aedb0f
BC
2028 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
2029 return -1;
0d8f0abf
BC
2030 ctts_data = av_realloc(sc->ctts_data,
2031 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
2032 if (!ctts_data)
61aedb0f 2033 return AVERROR(ENOMEM);
0d8f0abf 2034 sc->ctts_data = ctts_data;
61aedb0f
BC
2035 }
2036 dts = st->duration;
2037 offset = frag->base_data_offset + data_offset;
2038 distance = 0;
dfd2a005 2039 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
61aedb0f
BC
2040 for (i = 0; i < entries; i++) {
2041 unsigned sample_size = frag->size;
2042 int sample_flags = i ? frag->flags : first_sample_flags;
2043 unsigned sample_duration = frag->duration;
2044 int keyframe;
2045
2046 if (flags & 0x100) sample_duration = get_be32(pb);
2047 if (flags & 0x200) sample_size = get_be32(pb);
2048 if (flags & 0x400) sample_flags = get_be32(pb);
2049 if (flags & 0x800) {
2050 sc->ctts_data[sc->ctts_count].count = 1;
2051 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
2052 sc->ctts_count++;
2053 }
72415b2a 2054 if ((keyframe = st->codec->codec_type == AVMEDIA_TYPE_AUDIO ||
61aedb0f
BC
2055 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
2056 distance = 0;
2057 av_add_index_entry(st, offset, dts, sample_size, distance,
2058 keyframe ? AVINDEX_KEYFRAME : 0);
dfd2a005 2059 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
61aedb0f
BC
2060 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
2061 offset, dts, sample_size, distance, keyframe);
2062 distance++;
bbe46bc4 2063 dts += sample_duration;
61aedb0f
BC
2064 offset += sample_size;
2065 }
2066 frag->moof_offset = offset;
61aedb0f
BC
2067 st->duration = dts;
2068 return 0;
2069}
2070
5ca1d879
ZK
2071/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2072/* like the files created with Adobe Premiere 5.0, for samples see */
2073/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
ae628ec1 2074static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5ca1d879
ZK
2075{
2076 int err;
5ca1d879 2077
5ca1d879
ZK
2078 if (atom.size < 8)
2079 return 0; /* continue */
2080 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2081 url_fskip(pb, atom.size - 4);
2082 return 0;
2083 }
2084 atom.type = get_le32(pb);
5ca1d879 2085 atom.size -= 8;
1c126b4f 2086 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
2087 url_fskip(pb, atom.size);
2088 return 0;
2089 }
2090 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
2091 return err;
2092}
2093
ae628ec1 2094static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
0147f198 2095{
b250f9c6 2096#if CONFIG_ZLIB
ae628ec1 2097 AVIOContext ctx;
b6a17df4
ZK
2098 uint8_t *cmov_data;
2099 uint8_t *moov_data; /* uncompressed data */
0147f198 2100 long cmov_len, moov_len;
6f04eb1e 2101 int ret = -1;
b6a17df4 2102
0147f198 2103 get_be32(pb); /* dcom atom */
1c126b4f 2104 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 2105 return -1;
1c126b4f 2106 if (get_le32(pb) != MKTAG('z','l','i','b')) {
f3592353 2107 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
2108 return -1;
2109 }
2110 get_be32(pb); /* cmvd atom */
1c126b4f 2111 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
2112 return -1;
2113 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 2114 cmov_len = atom.size - 6 * 4;
5cd62665 2115
9a630c25 2116 cmov_data = av_malloc(cmov_len);
0147f198 2117 if (!cmov_data)
0d8f0abf 2118 return AVERROR(ENOMEM);
9a630c25 2119 moov_data = av_malloc(moov_len);
0147f198
FR
2120 if (!moov_data) {
2121 av_free(cmov_data);
0d8f0abf 2122 return AVERROR(ENOMEM);
0147f198
FR
2123 }
2124 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 2125 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 2126 goto free_and_return;
e731b8d8 2127 if(ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 2128 goto free_and_return;
1c126b4f 2129 atom.type = MKTAG('m','o','o','v');
5ca1d879 2130 atom.size = moov_len;
9ed83b0a 2131#ifdef DEBUG
dbb4f00a 2132// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 2133#endif
5ca1d879 2134 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 2135free_and_return:
0147f198
FR
2136 av_free(moov_data);
2137 av_free(cmov_data);
2138 return ret;
d966b2f0
BC
2139#else
2140 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
2141 return -1;
0147f198 2142#endif
d966b2f0 2143}
0147f198 2144
baf25c9d 2145/* edit list atom */
ae628ec1 2146static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
baf25c9d 2147{
1c4bf2ec 2148 MOVStreamContext *sc;
e0977c80
BC
2149 int i, edit_count;
2150
1c4bf2ec
BC
2151 if (c->fc->nb_streams < 1)
2152 return 0;
2153 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
2154
e0977c80 2155 get_byte(pb); /* version */
23f08617 2156 get_be24(pb); /* flags */
1975c52c 2157 edit_count = get_be32(pb); /* entries */
e0977c80 2158
53e099de
BC
2159 if((uint64_t)edit_count*12+8 > atom.size)
2160 return -1;
2161
e0977c80 2162 for(i=0; i<edit_count; i++){
d435e520 2163 int time;
2ac736a6 2164 int duration = get_be32(pb); /* Track duration */
d435e520 2165 time = get_be32(pb); /* Media time */
e0977c80 2166 get_be32(pb); /* Media rate */
2ac736a6
RD
2167 if (i == 0 && time >= -1) {
2168 sc->time_offset = time != -1 ? time : -duration;
a5929abe 2169 }
e0977c80 2170 }
baf2ffd3
BC
2171
2172 if(edit_count > 1)
2173 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
2174 "a/v desync might occur, patch welcome\n");
2175
dfd2a005 2176 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
e0977c80 2177 return 0;
baf25c9d
GC
2178}
2179
6cea494e 2180static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 2181{ MKTAG('a','v','s','s'), mov_read_extradata },
1cf9f6ed 2182{ MKTAG('c','h','p','l'), mov_read_chpl },
1c126b4f
BC
2183{ MKTAG('c','o','6','4'), mov_read_stco },
2184{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
2185{ MKTAG('d','i','n','f'), mov_read_default },
2186{ MKTAG('d','r','e','f'), mov_read_dref },
2187{ MKTAG('e','d','t','s'), mov_read_default },
2188{ MKTAG('e','l','s','t'), mov_read_elst },
2189{ MKTAG('e','n','d','a'), mov_read_enda },
2190{ MKTAG('f','i','e','l'), mov_read_extradata },
2191{ MKTAG('f','t','y','p'), mov_read_ftyp },
2192{ MKTAG('g','l','b','l'), mov_read_glbl },
2193{ MKTAG('h','d','l','r'), mov_read_hdlr },
51c15201 2194{ MKTAG('i','l','s','t'), mov_read_ilst },
1c126b4f
BC
2195{ MKTAG('j','p','2','h'), mov_read_extradata },
2196{ MKTAG('m','d','a','t'), mov_read_mdat },
2197{ MKTAG('m','d','h','d'), mov_read_mdhd },
2198{ MKTAG('m','d','i','a'), mov_read_default },
51c15201 2199{ MKTAG('m','e','t','a'), mov_read_meta },
1c126b4f
BC
2200{ MKTAG('m','i','n','f'), mov_read_default },
2201{ MKTAG('m','o','o','f'), mov_read_moof },
2202{ MKTAG('m','o','o','v'), mov_read_moov },
2203{ MKTAG('m','v','e','x'), mov_read_default },
2204{ MKTAG('m','v','h','d'), mov_read_mvhd },
2205{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
2206{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
2207{ MKTAG('a','v','c','C'), mov_read_glbl },
6da54074 2208{ MKTAG('p','a','s','p'), mov_read_pasp },
1c126b4f
BC
2209{ MKTAG('s','t','b','l'), mov_read_default },
2210{ MKTAG('s','t','c','o'), mov_read_stco },
171a3531 2211{ MKTAG('s','t','p','s'), mov_read_stps },
653d7aeb 2212{ MKTAG('s','t','r','f'), mov_read_strf },
1c126b4f
BC
2213{ MKTAG('s','t','s','c'), mov_read_stsc },
2214{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
2215{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
2216{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
2217{ MKTAG('s','t','t','s'), mov_read_stts },
bd27eed6 2218{ MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
1c126b4f
BC
2219{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
2220{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
2221{ MKTAG('t','r','a','k'), mov_read_trak },
2222{ MKTAG('t','r','a','f'), mov_read_default },
7221579b
DC
2223{ MKTAG('t','r','e','f'), mov_read_default },
2224{ MKTAG('c','h','a','p'), mov_read_chap },
1c126b4f
BC
2225{ MKTAG('t','r','e','x'), mov_read_trex },
2226{ MKTAG('t','r','u','n'), mov_read_trun },
86b0affd 2227{ MKTAG('u','d','t','a'), mov_read_default },
1c126b4f
BC
2228{ MKTAG('w','a','v','e'), mov_read_wave },
2229{ MKTAG('e','s','d','s'), mov_read_esds },
bdecdd2b 2230{ MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
1c126b4f
BC
2231{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
2232{ MKTAG('c','m','o','v'), mov_read_cmov },
bcfe2ba0 2233{ 0, NULL }
6cea494e
ZK
2234};
2235
c9a65ca8
FB
2236static int mov_probe(AVProbeData *p)
2237{
0e7eed09
FB
2238 unsigned int offset;
2239 uint32_t tag;
2497479f 2240 int score = 0;
3ffe3793 2241
c9a65ca8 2242 /* check file header */
0e7eed09
FB
2243 offset = 0;
2244 for(;;) {
2245 /* ignore invalid offset */
2246 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 2247 return score;
fead30d4 2248 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 2249 switch(tag) {
2497479f 2250 /* check for obvious tags */
1c126b4f
BC
2251 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
2252 case MKTAG('m','o','o','v'):
2253 case MKTAG('m','d','a','t'):
2254 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
2255 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 2256 case MKTAG('f','t','y','p'):
3ffe3793 2257 return AVPROBE_SCORE_MAX;
2497479f 2258 /* those are more common words, so rate then a bit less */
1c126b4f
BC
2259 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
2260 case MKTAG('w','i','d','e'):
2261 case MKTAG('f','r','e','e'):
2262 case MKTAG('j','u','n','k'):
2263 case MKTAG('p','i','c','t'):
2497479f 2264 return AVPROBE_SCORE_MAX - 5;
5469b788 2265 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
2266 case MKTAG('s','k','i','p'):
2267 case MKTAG('u','u','i','d'):
2268 case MKTAG('p','r','f','l'):
fead30d4 2269 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
2270 /* if we only find those cause probedata is too small at least rate them */
2271 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
2272 break;
2273 default:
2274 /* unrecognized tag */
2497479f 2275 return score;
0e7eed09 2276 }
3ffe3793 2277 }
2497479f 2278 return score;
c9a65ca8
FB
2279}
2280
7221579b
DC
2281// must be done after parsing all trak because there's no order requirement
2282static void mov_read_chapters(AVFormatContext *s)
2283{
2284 MOVContext *mov = s->priv_data;
2285 AVStream *st = NULL;
2286 MOVStreamContext *sc;
2287 int64_t cur_pos;
225b6d7f 2288 int i;
7221579b
DC
2289
2290 for (i = 0; i < s->nb_streams; i++)
2291 if (s->streams[i]->id == mov->chapter_track) {
2292 st = s->streams[i];
2293 break;
2294 }
2295 if (!st) {
2296 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
2297 return;
2298 }
2299
2300 st->discard = AVDISCARD_ALL;
2301 sc = st->priv_data;
2302 cur_pos = url_ftell(sc->pb);
2303
2304 for (i = 0; i < st->nb_index_entries; i++) {
2305 AVIndexEntry *sample = &st->index_entries[i];
2306 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
225b6d7f
AK
2307 uint8_t *title;
2308 uint16_t ch;
2309 int len, title_len;
7221579b
DC
2310
2311 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
2312 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
2313 goto finish;
2314 }
2315
7221579b 2316 // the first two bytes are the length of the title
225b6d7f 2317 len = get_be16(sc->pb);
7221579b
DC
2318 if (len > sample->size-2)
2319 continue;
225b6d7f
AK
2320 title_len = 2*len + 1;
2321 if (!(title = av_mallocz(title_len)))
2322 goto finish;
7221579b
DC
2323
2324 // The samples could theoretically be in any encoding if there's an encd
2325 // atom following, but in practice are only utf-8 or utf-16, distinguished
2326 // instead by the presence of a BOM
225b6d7f
AK
2327 ch = get_be16(sc->pb);
2328 if (ch == 0xfeff)
2329 avio_get_str16be(sc->pb, len, title, title_len);
97b04f5e
JS
2330 else if (ch == 0xfffe)
2331 avio_get_str16le(sc->pb, len, title, title_len);
225b6d7f
AK
2332 else {
2333 AV_WB16(title, ch);
2334 get_strz(sc->pb, title + 2, len - 1);
7221579b
DC
2335 }
2336
225b6d7f 2337 ff_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
c4f8765a 2338 av_freep(&title);
7221579b
DC
2339 }
2340finish:
7221579b
DC
2341 url_fseek(sc->pb, cur_pos, SEEK_SET);
2342}
2343
a266644f 2344static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 2345{
e4141433 2346 MOVContext *mov = s->priv_data;
ae628ec1 2347 AVIOContext *pb = s->pb;
f9900374 2348 int err;
3491866a 2349 MOVAtom atom = { AV_RL32("root") };
6cea494e 2350
6cea494e 2351 mov->fc = s;
117a9190
BC
2352 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
2353 if(!url_is_streamed(pb))
bb270c08 2354 atom.size = url_fsize(pb);
6cea494e 2355 else
fa22ca22 2356 atom.size = INT64_MAX;
6cea494e 2357
6cea494e 2358 /* check MOV header */
612b5cbb
BC
2359 if ((err = mov_read_default(mov, pb, atom)) < 0) {
2360 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
2361 return err;
2362 }
2363 if (!mov->found_moov) {
2364 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 2365 return -1;
6cea494e 2366 }
dfd2a005 2367 av_dlog(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 2368
7221579b
DC
2369 if (!url_is_streamed(pb) && mov->chapter_track > 0)
2370 mov_read_chapters(s);
2371
6cea494e
ZK
2372 return 0;
2373}
2374
5dc5c43b 2375static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
6cea494e 2376{
5dc5c43b 2377 AVIndexEntry *sample = NULL;
86d8602f 2378 int64_t best_dts = INT64_MAX;
5dc5c43b 2379 int i;
11f16b66 2380 for (i = 0; i < s->nb_streams; i++) {
69fc436c
RD
2381 AVStream *avst = s->streams[i];
2382 MOVStreamContext *msc = avst->priv_data;
3fe4d5d4 2383 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
69fc436c 2384 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
bbe46bc4 2385 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
dfd2a005 2386 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
2387 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
2388 (!url_is_streamed(s->pb) &&
221e21b7 2389 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 2390 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 2391 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
2392 sample = current_sample;
2393 best_dts = dts;
5dc5c43b 2394 *st = avst;
86d8602f 2395 }
6cea494e 2396 }
6cea494e 2397 }
5dc5c43b
RD
2398 return sample;
2399}
2400
2401static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
2402{
2403 MOVContext *mov = s->priv_data;
2404 MOVStreamContext *sc;
2405 AVIndexEntry *sample;
2406 AVStream *st = NULL;
2407 int ret;
2408 retry:
2409 sample = mov_find_next_sample(s, &st);
433aeb62
BC
2410 if (!sample) {
2411 mov->found_mdat = 0;
2412 if (!url_is_streamed(s->pb) ||
3491866a 2413 mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
433aeb62 2414 url_feof(s->pb))
350f2c2c 2415 return AVERROR_EOF;
dfd2a005 2416 av_dlog(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
433aeb62
BC
2417 goto retry;
2418 }
69fc436c 2419 sc = st->priv_data;
b72708f8
BC
2420 /* must be done just before reading, to avoid infinite loop on sample */
2421 sc->current_sample++;
3fe4d5d4
RD
2422
2423 if (st->discard != AVDISCARD_ALL) {
e1c1b0ff
RD
2424 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
2425 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
2426 sc->ffindex, sample->pos);
2427 return -1;
2428 }
2429 ret = av_get_packet(sc->pb, pkt, sample->size);
a2f38511
RD
2430 if (ret < 0)
2431 return ret;
e1c1b0ff
RD
2432#if CONFIG_DV_DEMUXER
2433 if (mov->dv_demux && sc->dv_audio_container) {
2434 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
2435 av_free(pkt->data);
2436 pkt->size = 0;
2437 ret = dv_get_packet(mov->dv_demux, pkt);
2438 if (ret < 0)
2439 return ret;
2440 }
312954f0 2441#endif
3fe4d5d4
RD
2442 }
2443
b72708f8
BC
2444 pkt->stream_index = sc->ffindex;
2445 pkt->dts = sample->timestamp;
2446 if (sc->ctts_data) {
bbe46bc4 2447 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
b72708f8 2448 /* update ctts context */
a234e38d
BC
2449 sc->ctts_sample++;
2450 if (sc->ctts_index < sc->ctts_count &&
2451 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
2452 sc->ctts_index++;
2453 sc->ctts_sample = 0;
b565ea09 2454 }
0c5f76f7
BC
2455 if (sc->wrong_dts)
2456 pkt->dts = AV_NOPTS_VALUE;
b72708f8 2457 } else {
f0f2218d 2458 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
e8430214
HG
2459 st->index_entries[sc->current_sample].timestamp : st->duration;
2460 pkt->duration = next_dts - pkt->dts;
b72708f8 2461 pkt->pts = pkt->dts;
b565ea09 2462 }
3fe4d5d4
RD
2463 if (st->discard == AVDISCARD_ALL)
2464 goto retry;
cc947f04 2465 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
b72708f8 2466 pkt->pos = sample->pos;
dfd2a005 2467 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
29c90869 2468 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
2469 return 0;
2470}
3ffe3793 2471
e26df9eb 2472static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
b72708f8
BC
2473{
2474 MOVStreamContext *sc = st->priv_data;
2475 int sample, time_sample;
2476 int i;
115329f1 2477
b72708f8 2478 sample = av_index_search_timestamp(st, timestamp, flags);
dfd2a005 2479 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
380966a8
JS
2480 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
2481 sample = 0;
b72708f8
BC
2482 if (sample < 0) /* not sure what to do */
2483 return -1;
2484 sc->current_sample = sample;
dfd2a005 2485 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
2486 /* adjust ctts index */
2487 if (sc->ctts_data) {
2488 time_sample = 0;
2489 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
2490 int next = time_sample + sc->ctts_data[i].count;
2491 if (next > sc->current_sample) {
a234e38d
BC
2492 sc->ctts_index = i;
2493 sc->ctts_sample = sc->current_sample - time_sample;
b72708f8 2494 break;
115329f1 2495 }
54a5c719 2496 time_sample = next;
247d56f5 2497 }
247d56f5 2498 }
b72708f8 2499 return sample;
6cea494e
ZK
2500}
2501
961e0ccd 2502static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 2503{
b72708f8
BC
2504 AVStream *st;
2505 int64_t seek_timestamp, timestamp;
2506 int sample;
2507 int i;
baf25c9d 2508
b72708f8 2509 if (stream_index >= s->nb_streams)
baf25c9d 2510 return -1;
8dc81a45
BC
2511 if (sample_time < 0)
2512 sample_time = 0;
baf25c9d 2513
b72708f8 2514 st = s->streams[stream_index];
e26df9eb 2515 sample = mov_seek_stream(s, st, sample_time, flags);
b72708f8 2516 if (sample < 0)
baf25c9d 2517 return -1;
baf25c9d 2518
b72708f8
BC
2519 /* adjust seek timestamp to found sample timestamp */
2520 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 2521
b72708f8
BC
2522 for (i = 0; i < s->nb_streams; i++) {
2523 st = s->streams[i];
3fe4d5d4 2524 if (stream_index == i)
b72708f8 2525 continue;
baf25c9d 2526
b72708f8 2527 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
e26df9eb 2528 mov_seek_stream(s, st, timestamp, flags);
115329f1 2529 }
baf25c9d
GC
2530 return 0;
2531}
baf25c9d 2532
a266644f 2533static int mov_read_close(AVFormatContext *s)
6cea494e 2534{
e4141433 2535 MOVContext *mov = s->priv_data;
6c00a9de
BC
2536 int i, j;
2537
2538 for (i = 0; i < s->nb_streams; i++) {
e49da827
BC
2539 AVStream *st = s->streams[i];
2540 MOVStreamContext *sc = st->priv_data;
6c00a9de 2541
7c622eed 2542 av_freep(&sc->ctts_data);
adeb9071 2543 for (j = 0; j < sc->drefs_count; j++) {
221e21b7 2544 av_freep(&sc->drefs[j].path);
adeb9071
BC
2545 av_freep(&sc->drefs[j].dir);
2546 }
221e21b7
BC
2547 av_freep(&sc->drefs);
2548 if (sc->pb && sc->pb != s->pb)
2549 url_fclose(sc->pb);
e49da827
BC
2550
2551 av_freep(&st->codec->palctrl);
4440b118 2552 }
6c00a9de
BC
2553
2554 if (mov->dv_demux) {
2555 for(i = 0; i < mov->dv_fctx->nb_streams; i++) {
b60c0454
BC
2556 av_freep(&mov->dv_fctx->streams[i]->codec);
2557 av_freep(&mov->dv_fctx->streams[i]);
2558 }
2559 av_freep(&mov->dv_fctx);
2560 av_freep(&mov->dv_demux);
2561 }
6c00a9de 2562
61aedb0f 2563 av_freep(&mov->trex_data);
6c00a9de 2564
6cea494e
ZK
2565 return 0;
2566}
2567
c6610a21 2568AVInputFormat ff_mov_demuxer = {
fc5188f3 2569 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 2570 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
2571 sizeof(MOVContext),
2572 mov_probe,
6cea494e
ZK
2573 mov_read_header,
2574 mov_read_packet,
2575 mov_read_close,
baf25c9d 2576 mov_read_seek,
6cea494e 2577};