In mov demuxer, increase total size after debugging message
[libav.git] / libavformat / mov.c
CommitLineData
6cea494e 1/*
7fbde343 2 * MOV demuxer
406792e7 3 * Copyright (c) 2001 Fabrice Bellard
7c4502c8 4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6cea494e 5 *
b78e7197
DB
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
6cea494e 12 *
b78e7197 13 * FFmpeg is distributed in the hope that it will be useful,
6cea494e 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
6cea494e 17 *
19720f15 18 * You should have received a copy of the GNU Lesser General Public
b78e7197 19 * License along with FFmpeg; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6cea494e 21 */
d957696f
MN
22
23#include <limits.h>
115329f1 24
bfc2a19d 25//#define DEBUG
873358e5
BC
26//#define DEBUG_METADATA
27//#define MOV_EXPORT_ALL_METADATA
4e5ef14f 28
6a5d31ac 29#include "libavutil/intreadwrite.h"
49674dd0 30#include "libavutil/avstring.h"
6cea494e 31#include "avformat.h"
9d9f4119 32#include "riff.h"
e40ee6a2 33#include "isom.h"
245976da
DB
34#include "libavcodec/mpeg4audio.h"
35#include "libavcodec/mpegaudiodata.h"
9106a698 36#include "libavcodec/get_bits.h"
6cea494e 37
b250f9c6 38#if CONFIG_ZLIB
0147f198
FR
39#include <zlib.h>
40#endif
41
6cea494e
ZK
42/*
43 * First version by Francois Revol revol@free.fr
115329f1 44 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 45 *
6cea494e 46 * Features and limitations:
5ca1d879 47 * - reads most of the QT files I have (at least the structure),
6cea494e 48 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 49 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 50 *
6cea494e
ZK
51 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
52 * when coding this :) (it's a writer anyway)
5ca1d879 53 *
6cea494e
ZK
54 * Reference documents:
55 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
56 * Apple:
baf25c9d 57 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 58 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
59 * QuickTime is a trademark of Apple (AFAIK :))
60 */
61
b595afaa
MM
62#include "qtpalette.h"
63
baf25c9d 64
cd7352d5
MN
65#undef NDEBUG
66#include <assert.h>
67
6cea494e
ZK
68/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
69
70/* those functions parse an atom */
71/* return code:
e3c4740f 72 0: continue to parse next atom
d9526386 73 <0: error occurred, exit
e3c4740f 74*/
6cea494e
ZK
75/* links atom IDs to parse functions */
76typedef struct MOVParseTableEntry {
0c1a9eda 77 uint32_t type;
c3e92a6c 78 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOVAtom atom);
6cea494e
ZK
79} MOVParseTableEntry;
80
73d07c27
BC
81static const MOVParseTableEntry mov_default_parse_table[];
82
c6026e43
BC
83static int mov_metadata_trkn(MOVContext *c, ByteIOContext *pb, unsigned len)
84{
85 char buf[16];
86
87 get_be16(pb); // unknown
88 snprintf(buf, sizeof(buf), "%d", get_be16(pb));
2ef6c124 89 av_metadata_set2(&c->fc->metadata, "track", buf, 0);
c6026e43
BC
90
91 get_be16(pb); // total tracks
92
93 return 0;
94}
95
08a186c6
BC
96static const uint32_t mac_to_unicode[128] = {
97 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
98 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
99 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
100 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
101 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
102 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
103 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
104 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
105 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
106 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
107 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
108 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
109 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
110 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
111 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
112 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
113};
114
115static int mov_read_mac_string(MOVContext *c, ByteIOContext *pb, int len,
116 char *dst, int dstlen)
117{
118 char *p = dst;
119 char *end = dst+dstlen-1;
120 int i;
121
122 for (i = 0; i < len; i++) {
123 uint8_t t, c = get_byte(pb);
124 if (c < 0x80 && p < end)
125 *p++ = c;
126 else
127 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
128 }
129 *p = 0;
130 return p - dst;
131}
132
0fb44a4e
BC
133static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
134{
135#ifdef MOV_EXPORT_ALL_METADATA
136 char tmp_key[5];
137#endif
138 char str[1024], key2[16], language[4] = {0};
139 const char *key = NULL;
08a186c6
BC
140 uint16_t str_size, langcode = 0;
141 uint32_t data_type = 0;
c6026e43 142 int (*parse)(MOVContext*, ByteIOContext*, unsigned) = NULL;
0fb44a4e
BC
143
144 switch (atom.type) {
145 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
146 case MKTAG(0xa9,'a','u','t'):
ea4c4d7f 147 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
55d2e32a 148 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
b9c78bca 149 case MKTAG( 'c','p','r','t'):
0fb44a4e
BC
150 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
151 case MKTAG(0xa9,'c','m','t'):
152 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
153 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
ca76a119 154 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
0fb44a4e
BC
155 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
156 case MKTAG(0xa9,'t','o','o'):
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
1cf9f6ed
DC
222static int mov_read_chpl(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
223{
224 int64_t start;
225 int i, nb_chapters, str_len;
226 char str[256+1];
227
228 if ((atom.size -= 5) < 0)
229 return 0;
230
231 get_be32(pb); // version + flags
232 get_be32(pb); // ???
233 nb_chapters = get_byte(pb);
234
235 for (i = 0; i < nb_chapters; i++) {
236 if (atom.size < 9)
237 return 0;
238
239 start = get_be64(pb);
240 str_len = get_byte(pb);
241
242 if ((atom.size -= 9+str_len) < 0)
243 return 0;
244
245 get_buffer(pb, str, str_len);
246 str[str_len] = 0;
247 ff_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
248 }
249 return 0;
250}
251
c3e92a6c 252static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 253{
b6a17df4 254 int64_t total_size = 0;
c3e92a6c 255 MOVAtom a;
6cea494e 256 int i;
5ca1d879 257
9ed83b0a 258 if (atom.size < 0)
fa22ca22 259 atom.size = INT64_MAX;
7b1312fa 260 while (total_size + 8 < atom.size && !url_feof(pb)) {
873358e5 261 int (*parse)(MOVContext*, ByteIOContext*, MOVAtom) = NULL;
bb270c08 262 a.size = atom.size;
bcfe2ba0 263 a.type=0;
5ca1d879 264 if(atom.size >= 8) {
bb270c08 265 a.size = get_be32(pb);
5ca1d879 266 a.type = get_le32(pb);
6cea494e 267 }
3491866a
BC
268 dprintf(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
269 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
2209ffac 270 total_size += 8;
5ca1d879 271 if (a.size == 1) { /* 64 bit extended size */
bb270c08 272 a.size = get_be64(pb) - 8;
5ca1d879 273 total_size += 8;
6cea494e 274 }
bb270c08
DB
275 if (a.size == 0) {
276 a.size = atom.size - total_size;
277 if (a.size <= 8)
5cd62665 278 break;
bb270c08 279 }
bb270c08 280 a.size -= 8;
8622613d 281 if(a.size < 0)
568e18b1 282 break;
3d2308b0 283 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 284
873358e5
BC
285 for (i = 0; mov_default_parse_table[i].type; i++)
286 if (mov_default_parse_table[i].type == a.type) {
287 parse = mov_default_parse_table[i].parse;
288 break;
289 }
11979c46 290
873358e5
BC
291 // container is user data
292 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
293 atom.type == MKTAG('i','l','s','t')))
294 parse = mov_read_udta_string;
295
296 if (!parse) { /* skip leaf atoms data */
5ca1d879 297 url_fskip(pb, a.size);
bb270c08 298 } else {
bc5c918e 299 int64_t start_pos = url_ftell(pb);
5c72cad8 300 int64_t left;
a510991c
BC
301 int err = parse(c, pb, a);
302 if (err < 0)
303 return err;
49544546
BC
304 if (c->found_moov && c->found_mdat &&
305 (url_is_streamed(pb) || start_pos + a.size == url_fsize(pb)))
306 return 0;
5c72cad8
BC
307 left = a.size - url_ftell(pb) + start_pos;
308 if (left > 0) /* skip garbage at atom end */
309 url_fskip(pb, left);
bb270c08 310 }
6cea494e 311
5ca1d879 312 total_size += a.size;
6cea494e
ZK
313 }
314
a510991c 315 if (total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 316 url_fskip(pb, atom.size - total_size);
5cd62665 317
a510991c 318 return 0;
6cea494e
ZK
319}
320
c3e92a6c 321static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
221e21b7 322{
6a63ff19
BC
323 AVStream *st;
324 MOVStreamContext *sc;
221e21b7
BC
325 int entries, i, j;
326
6a63ff19
BC
327 if (c->fc->nb_streams < 1)
328 return 0;
329 st = c->fc->streams[c->fc->nb_streams-1];
330 sc = st->priv_data;
331
221e21b7
BC
332 get_be32(pb); // version + flags
333 entries = get_be32(pb);
334 if (entries >= UINT_MAX / sizeof(*sc->drefs))
335 return -1;
221e21b7 336 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
0d8f0abf
BC
337 if (!sc->drefs)
338 return AVERROR(ENOMEM);
339 sc->drefs_count = entries;
221e21b7
BC
340
341 for (i = 0; i < sc->drefs_count; i++) {
c3e92a6c 342 MOVDref *dref = &sc->drefs[i];
221e21b7 343 uint32_t size = get_be32(pb);
bc5c918e 344 int64_t next = url_ftell(pb) + size - 4;
221e21b7
BC
345
346 dref->type = get_le32(pb);
347 get_be32(pb); // version + flags
348 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
349
350 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
351 /* macintosh alias record */
352 uint16_t volume_len, len;
221e21b7
BC
353 int16_t type;
354
355 url_fskip(pb, 10);
356
357 volume_len = get_byte(pb);
358 volume_len = FFMIN(volume_len, 27);
adeb9071
BC
359 get_buffer(pb, dref->volume, 27);
360 dref->volume[volume_len] = 0;
361 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
221e21b7 362
adeb9071
BC
363 url_fskip(pb, 12);
364
365 len = get_byte(pb);
366 len = FFMIN(len, 63);
367 get_buffer(pb, dref->filename, 63);
368 dref->filename[len] = 0;
369 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
370
371 url_fskip(pb, 16);
372
373 /* read next level up_from_alias/down_to_target */
374 dref->nlvl_from = get_be16(pb);
375 dref->nlvl_to = get_be16(pb);
376 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
377 dref->nlvl_from, dref->nlvl_to);
378
379 url_fskip(pb, 16);
221e21b7
BC
380
381 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
382 type = get_be16(pb);
383 len = get_be16(pb);
384 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
385 if (len&1)
386 len += 1;
387 if (type == 2) { // absolute path
dbb37657 388 av_free(dref->path);
221e21b7 389 dref->path = av_mallocz(len+1);
2f4568e5
BC
390 if (!dref->path)
391 return AVERROR(ENOMEM);
221e21b7 392 get_buffer(pb, dref->path, len);
adeb9071 393 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
221e21b7
BC
394 len -= volume_len;
395 memmove(dref->path, dref->path+volume_len, len);
396 dref->path[len] = 0;
397 }
398 for (j = 0; j < len; j++)
399 if (dref->path[j] == ':')
400 dref->path[j] = '/';
401 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
adeb9071
BC
402 } else if (type == 0) { // directory name
403 av_free(dref->dir);
404 dref->dir = av_malloc(len+1);
405 if (!dref->dir)
406 return AVERROR(ENOMEM);
407 get_buffer(pb, dref->dir, len);
408 dref->dir[len] = 0;
409 for (j = 0; j < len; j++)
410 if (dref->dir[j] == ':')
411 dref->dir[j] = '/';
412 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
221e21b7
BC
413 } else
414 url_fskip(pb, len);
415 }
416 }
417 url_fseek(pb, next, SEEK_SET);
418 }
419 return 0;
420}
421
c3e92a6c 422static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 423{
fefe43ff 424 AVStream *st;
0c1a9eda 425 uint32_t type;
0c1a9eda 426 uint32_t ctype;
b6a17df4 427
fefe43ff
AC
428 if (c->fc->nb_streams < 1) // meta before first trak
429 return 0;
430
431 st = c->fc->streams[c->fc->nb_streams-1];
432
6cea494e 433 get_byte(pb); /* version */
23f08617 434 get_be24(pb); /* flags */
6cea494e
ZK
435
436 /* component type */
437 ctype = get_le32(pb);
438 type = get_le32(pb); /* component subtype */
439
9bf1b268
BC
440 dprintf(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
441 dprintf(c->fc, "stype= %.4s\n", (char*)&type);
2229a5c6 442
37ffe34b 443 if (type == MKTAG('v','i','d','e'))
72415b2a 444 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1c126b4f 445 else if(type == MKTAG('s','o','u','n'))
72415b2a 446 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1c126b4f 447 else if(type == MKTAG('m','1','a',' '))
95a07973 448 st->codec->codec_id = CODEC_ID_MP2;
f05783c2 449 else if(type == MKTAG('s','u','b','p'))
72415b2a 450 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
f05783c2 451
6cea494e
ZK
452 get_be32(pb); /* component manufacture */
453 get_be32(pb); /* component flags */
454 get_be32(pb); /* component flags mask */
455
6cea494e
ZK
456 return 0;
457}
458
2d423666 459int ff_mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 460{
5cd62665 461 int len = 0;
5ca1d879
ZK
462 int count = 4;
463 while (count--) {
5cd62665 464 int c = get_byte(pb);
bb270c08
DB
465 len = (len << 7) | (c & 0x7f);
466 if (!(c & 0x80))
467 break;
0e7eed09
FB
468 }
469 return len;
470}
471
998257bd 472static int mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
0e7eed09
FB
473{
474 int len;
475 *tag = get_byte(pb);
2d423666
PR
476 len = ff_mp4_read_descr_len(pb);
477 dprintf(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
478 return len;
479}
480
0b07ac42
BC
481#define MP4ESDescrTag 0x03
482#define MP4DecConfigDescrTag 0x04
483#define MP4DecSpecificDescrTag 0x05
484
1dec3994 485static const AVCodecTag mp4_audio_types[] = {
5c3d507f
AC
486 { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
487 { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
488 { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
489 { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
b24bbbb4 490 { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
5c3d507f 491 { CODEC_ID_NONE, AOT_NULL },
1dec3994
BC
492};
493
2d423666 494int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom)
5cd62665 495{
6a63ff19 496 AVStream *st;
5cd62665 497 int tag, len;
b6a17df4 498
2d423666 499 if (fc->nb_streams < 1)
6a63ff19 500 return 0;
2d423666 501 st = fc->streams[fc->nb_streams-1];
6a63ff19 502
5cd62665 503 get_be32(pb); /* version + flags */
2d423666 504 len = mp4_read_descr(fc, pb, &tag);
5cd62665 505 if (tag == MP4ESDescrTag) {
bb270c08
DB
506 get_be16(pb); /* ID */
507 get_byte(pb); /* priority */
5cd62665 508 } else
bb270c08 509 get_be16(pb); /* ID */
5cd62665 510
2d423666 511 len = mp4_read_descr(fc, pb, &tag);
5cd62665 512 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
513 int object_type_id = get_byte(pb);
514 get_byte(pb); /* stream type */
515 get_be24(pb); /* buffer size db */
516 get_be32(pb); /* max bitrate */
517 get_be32(pb); /* avg bitrate */
518
1a40491e 519 st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
ba278391 520 dprintf(fc, "esds object type id 0x%02x\n", object_type_id);
2d423666 521 len = mp4_read_descr(fc, pb, &tag);
bb270c08 522 if (tag == MP4DecSpecificDescrTag) {
2d423666 523 dprintf(fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
524 if((uint64_t)len > (1<<30))
525 return -1;
9a630c25 526 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
527 if (!st->codec->extradata)
528 return AVERROR(ENOMEM);
17871a02
BC
529 get_buffer(pb, st->codec->extradata, len);
530 st->codec->extradata_size = len;
1dec3994
BC
531 if (st->codec->codec_id == CODEC_ID_AAC) {
532 MPEG4AudioConfig cfg;
533 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
534 st->codec->extradata_size);
5aea268d 535 st->codec->channels = cfg.channels;
45a97d30
BC
536 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
537 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
538 else
539 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
2d423666 540 dprintf(fc, "mp4a config channels %d obj %d ext obj %d "
45a97d30
BC
541 "sample rate %d ext sample rate %d\n", st->codec->channels,
542 cfg.object_type, cfg.ext_object_type,
543 cfg.sample_rate, cfg.ext_sample_rate);
1a40491e
DV
544 if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
545 cfg.object_type)))
1dec3994 546 st->codec->codec_id = CODEC_ID_AAC;
17871a02 547 }
bb270c08 548 }
5cd62665 549 }
5cd62665
ZK
550 return 0;
551}
552
2d423666
PR
553static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
554{
555 return ff_mov_read_esds(c->fc, pb, atom);
556}
557
6da54074
BC
558static int mov_read_pasp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
559{
560 const int num = get_be32(pb);
561 const int den = get_be32(pb);
6a63ff19
BC
562 AVStream *st;
563
564 if (c->fc->nb_streams < 1)
565 return 0;
566 st = c->fc->streams[c->fc->nb_streams-1];
567
6da54074 568 if (den != 0) {
f53ee312
BC
569 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
570 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num))
6da54074 571 av_log(c->fc, AV_LOG_WARNING,
f53ee312
BC
572 "sample aspect ratio already set to %d:%d, overriding by 'pasp' atom\n",
573 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
6da54074
BC
574 st->sample_aspect_ratio.num = num;
575 st->sample_aspect_ratio.den = den;
576 }
577 return 0;
578}
579
5ca1d879 580/* this atom contains actual media data */
c3e92a6c 581static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 582{
5ca1d879
ZK
583 if(atom.size == 0) /* wrong one (MP4) */
584 return 0;
585 c->found_mdat=1;
5ca1d879
ZK
586 return 0; /* now go for moov */
587}
588
7b5252ce 589/* read major brand, minor version and compatible brands and store them as metadata */
c3e92a6c 590static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
4ea28253 591{
7b5252ce 592 uint32_t minor_ver;
593 int comp_brand_size;
594 char minor_ver_str[11]; /* 32 bit integer -> 10 digits + null */
595 char* comp_brands_str;
596 uint8_t type[5] = {0};
597
598 get_buffer(pb, type, 4);
a42bf191 599 if (strcmp(type, "qt "))
152e9a43 600 c->isom = 1;
a512446e 601 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
2ef6c124 602 av_metadata_set2(&c->fc->metadata, "major_brand", type, 0);
7b5252ce 603 minor_ver = get_be32(pb); /* minor version */
604 snprintf(minor_ver_str, sizeof(minor_ver_str), "%d", minor_ver);
2ef6c124 605 av_metadata_set2(&c->fc->metadata, "minor_version", minor_ver_str, 0);
7b5252ce 606
607 comp_brand_size = atom.size - 8;
608 if (comp_brand_size < 0)
609 return -1;
610 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
611 if (!comp_brands_str)
612 return AVERROR(ENOMEM);
613 get_buffer(pb, comp_brands_str, comp_brand_size);
614 comp_brands_str[comp_brand_size] = 0;
2ef6c124 615 av_metadata_set2(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
7b5252ce 616 av_freep(&comp_brands_str);
617
4ea28253
BC
618 return 0;
619}
620
5ca1d879 621/* this atom should contain all header atoms */
c3e92a6c 622static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 623{
9cf0419b
PI
624 if (mov_read_default(c, pb, atom) < 0)
625 return -1;
5ca1d879
ZK
626 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
627 /* so we don't parse the whole file if over a network */
628 c->found_moov=1;
5ca1d879
ZK
629 return 0; /* now go for mdat */
630}
631
c3e92a6c 632static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
633{
634 c->fragment.moof_offset = url_ftell(pb) - 8;
635 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
636 return mov_read_default(c, pb, atom);
637}
5ca1d879 638
c3e92a6c 639static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 640{
6a63ff19
BC
641 AVStream *st;
642 MOVStreamContext *sc;
643 int version;
49674dd0 644 char language[4] = {0};
dce25564 645 unsigned lang;
5ca1d879 646
6a63ff19
BC
647 if (c->fc->nb_streams < 1)
648 return 0;
649 st = c->fc->streams[c->fc->nb_streams-1];
650 sc = st->priv_data;
651
652 version = get_byte(pb);
b9a87c4d 653 if (version > 1)
7e627332 654 return -1; /* unsupported */
5ca1d879 655
23f08617 656 get_be24(pb); /* flags */
f444b977
BC
657 if (version == 1) {
658 get_be64(pb);
659 get_be64(pb);
660 } else {
661 get_be32(pb); /* creation time */
662 get_be32(pb); /* modification time */
663 }
5ca1d879 664
f444b977
BC
665 sc->time_scale = get_be32(pb);
666 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 667
b9a87c4d 668 lang = get_be16(pb); /* language */
49674dd0 669 if (ff_mov_lang_to_iso639(lang, language))
2ef6c124 670 av_metadata_set2(&st->metadata, "language", language, 0);
5ca1d879
ZK
671 get_be16(pb); /* quality */
672
673 return 0;
674}
675
c3e92a6c 676static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 677{
1175561e 678 int version = get_byte(pb); /* version */
23f08617 679 get_be24(pb); /* flags */
5ca1d879 680
1175561e
BC
681 if (version == 1) {
682 get_be64(pb);
683 get_be64(pb);
684 } else {
685 get_be32(pb); /* creation time */
686 get_be32(pb); /* modification time */
687 }
5ca1d879 688 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
689
690 dprintf(c->fc, "time scale = %i\n", c->time_scale);
691
1175561e 692 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
693 get_be32(pb); /* preferred scale */
694
695 get_be16(pb); /* preferred volume */
696
697 url_fskip(pb, 10); /* reserved */
698
699 url_fskip(pb, 36); /* display matrix */
700
701 get_be32(pb); /* preview time */
702 get_be32(pb); /* preview duration */
703 get_be32(pb); /* poster time */
704 get_be32(pb); /* selection time */
705 get_be32(pb); /* selection duration */
706 get_be32(pb); /* current time */
707 get_be32(pb); /* next track ID */
708
709 return 0;
710}
711
c3e92a6c 712static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
9ed83b0a 713{
6a63ff19
BC
714 AVStream *st;
715
716 if (c->fc->nb_streams < 1)
717 return 0;
718 st = c->fc->streams[c->fc->nb_streams-1];
9ed83b0a 719
568e18b1
MN
720 if((uint64_t)atom.size > (1<<30))
721 return -1;
115329f1 722
9ed83b0a
ZK
723 // currently SVQ3 decoder expect full STSD header - so let's fake it
724 // this should be fixed and just SMI header should be passed
01f4895c 725 av_free(st->codec->extradata);
b014dd76
BC
726 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
727 if (!st->codec->extradata)
728 return AVERROR(ENOMEM);
17871a02
BC
729 st->codec->extradata_size = 0x5a + atom.size;
730 memcpy(st->codec->extradata, "SVQ3", 4); // fake
731 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
732 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
733 return 0;
734}
5ca1d879 735
c3e92a6c 736static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234 737{
6a63ff19
BC
738 AVStream *st;
739 int little_endian;
740
741 if (c->fc->nb_streams < 1)
742 return 0;
743 st = c->fc->streams[c->fc->nb_streams-1];
de23f234 744
6a63ff19 745 little_endian = get_be16(pb);
fa50a027
BC
746 dprintf(c->fc, "enda %d\n", little_endian);
747 if (little_endian == 1) {
de23f234
BC
748 switch (st->codec->codec_id) {
749 case CODEC_ID_PCM_S24BE:
750 st->codec->codec_id = CODEC_ID_PCM_S24LE;
751 break;
752 case CODEC_ID_PCM_S32BE:
753 st->codec->codec_id = CODEC_ID_PCM_S32LE;
754 break;
a1ef2c4b
PR
755 case CODEC_ID_PCM_F32BE:
756 st->codec->codec_id = CODEC_ID_PCM_F32LE;
757 break;
758 case CODEC_ID_PCM_F64BE:
759 st->codec->codec_id = CODEC_ID_PCM_F64LE;
760 break;
de23f234
BC
761 default:
762 break;
763 }
764 }
765 return 0;
766}
767
014a5102 768/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
c3e92a6c 769static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
de23f234 770{
27134437
BC
771 AVStream *st;
772 uint64_t size;
68bc33fa 773 uint8_t *buf;
27134437
BC
774
775 if (c->fc->nb_streams < 1) // will happen with jp2 files
776 return 0;
777 st= c->fc->streams[c->fc->nb_streams-1];
778 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
68bc33fa 779 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 780 return -1;
68bc33fa
BC
781 buf= av_realloc(st->codec->extradata, size);
782 if(!buf)
783 return -1;
784 st->codec->extradata= buf;
785 buf+= st->codec->extradata_size;
786 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
787 AV_WB32( buf , atom.size + 8);
788 AV_WL32( buf + 4, atom.type);
789 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
790 return 0;
791}
792
c3e92a6c 793static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
d9b1c197 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];
d9b1c197
RT
800
801 if((uint64_t)atom.size > (1<<30))
802 return -1;
115329f1 803
3840147e
MN
804 if (st->codec->codec_id == CODEC_ID_QDM2) {
805 // pass all frma atom to codec, needed at least for QDM2
806 av_free(st->codec->extradata);
b014dd76
BC
807 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
808 if (!st->codec->extradata)
809 return AVERROR(ENOMEM);
3840147e 810 st->codec->extradata_size = atom.size;
b014dd76 811 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 812 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
813 if (mov_read_default(c, pb, atom) < 0)
814 return -1;
5c72cad8 815 } else
bb270c08 816 url_fskip(pb, atom.size);
d9b1c197
RT
817 return 0;
818}
819
bde24601
BC
820/**
821 * This function reads atom content and puts data in extradata without tag
822 * nor size unlike mov_read_extradata.
823 */
c3e92a6c 824static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
169eb021 825{
6a63ff19
BC
826 AVStream *st;
827
828 if (c->fc->nb_streams < 1)
829 return 0;
830 st = c->fc->streams[c->fc->nb_streams-1];
169eb021 831
568e18b1
MN
832 if((uint64_t)atom.size > (1<<30))
833 return -1;
834
01f4895c 835 av_free(st->codec->extradata);
b014dd76
BC
836 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
837 if (!st->codec->extradata)
838 return AVERROR(ENOMEM);
01f4895c 839 st->codec->extradata_size = atom.size;
b014dd76 840 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
841 return 0;
842}
843
653d7aeb
MS
844/**
845 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
846 * but can have extradata appended at the end after the 40 bytes belonging
847 * to the struct.
848 */
849static int mov_read_strf(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
850{
851 AVStream *st;
852
853 if (c->fc->nb_streams < 1)
854 return 0;
855 if (atom.size <= 40)
856 return 0;
857 st = c->fc->streams[c->fc->nb_streams-1];
858
859 if((uint64_t)atom.size > (1<<30))
860 return -1;
861
862 av_free(st->codec->extradata);
863 st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE);
864 if (!st->codec->extradata)
865 return AVERROR(ENOMEM);
866 st->codec->extradata_size = atom.size - 40;
867 url_fskip(pb, 40);
868 get_buffer(pb, st->codec->extradata, atom.size - 40);
869 return 0;
870}
871
c3e92a6c 872static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 873{
6a63ff19
BC
874 AVStream *st;
875 MOVStreamContext *sc;
568e18b1 876 unsigned int i, entries;
5ca1d879 877
6a63ff19
BC
878 if (c->fc->nb_streams < 1)
879 return 0;
880 st = c->fc->streams[c->fc->nb_streams-1];
881 sc = st->priv_data;
882
5ca1d879 883 get_byte(pb); /* version */
23f08617 884 get_be24(pb); /* flags */
5ca1d879
ZK
885
886 entries = get_be32(pb);
115329f1 887
568e18b1
MN
888 if(entries >= UINT_MAX/sizeof(int64_t))
889 return -1;
115329f1 890
9a630c25 891 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879 892 if (!sc->chunk_offsets)
0d8f0abf
BC
893 return AVERROR(ENOMEM);
894 sc->chunk_count = entries;
895
37ffe34b
BC
896 if (atom.type == MKTAG('s','t','c','o'))
897 for(i=0; i<entries; i++)
5ca1d879 898 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
899 else if (atom.type == MKTAG('c','o','6','4'))
900 for(i=0; i<entries; i++)
5ca1d879 901 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 902 else
5ca1d879 903 return -1;
115329f1 904
5ca1d879
ZK
905 return 0;
906}
907
2288834f
BC
908/**
909 * Compute codec id for 'lpcm' tag.
910 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
911 */
2d423666 912enum CodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
2288834f
BC
913{
914 if (flags & 1) { // floating point
915 if (flags & 2) { // big endian
916 if (bps == 32) return CODEC_ID_PCM_F32BE;
7e4b3fb8 917 else if (bps == 64) return CODEC_ID_PCM_F64BE;
2288834f 918 } else {
7e4b3fb8
BC
919 if (bps == 32) return CODEC_ID_PCM_F32LE;
920 else if (bps == 64) return CODEC_ID_PCM_F64LE;
2288834f
BC
921 }
922 } else {
923 if (flags & 2) {
924 if (bps == 8)
925 // signed integer
926 if (flags & 4) return CODEC_ID_PCM_S8;
927 else return CODEC_ID_PCM_U8;
928 else if (bps == 16) return CODEC_ID_PCM_S16BE;
929 else if (bps == 24) return CODEC_ID_PCM_S24BE;
930 else if (bps == 32) return CODEC_ID_PCM_S32BE;
931 } else {
932 if (bps == 8)
933 if (flags & 4) return CODEC_ID_PCM_S8;
934 else return CODEC_ID_PCM_U8;
021b8ae3 935 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
936 else if (bps == 24) return CODEC_ID_PCM_S24LE;
937 else if (bps == 32) return CODEC_ID_PCM_S32LE;
938 }
939 }
fb65d2ca 940 return CODEC_ID_NONE;
2288834f
BC
941}
942
c3e92a6c 943static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 944{
6a63ff19
BC
945 AVStream *st;
946 MOVStreamContext *sc;
baf9fb32 947 int j, entries, pseudo_stream_id;
b595afaa 948
6a63ff19
BC
949 if (c->fc->nb_streams < 1)
950 return 0;
951 st = c->fc->streams[c->fc->nb_streams-1];
952 sc = st->priv_data;
953
6cea494e 954 get_byte(pb); /* version */
23f08617 955 get_be24(pb); /* flags */
6cea494e 956
6cea494e
ZK
957 entries = get_be32(pb);
958
117a9190
BC
959 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
960 //Parsing Sample description table
b6a17df4 961 enum CodecID id;
28155113 962 int dref_id = 1;
3491866a 963 MOVAtom a = { AV_RL32("stsd") };
bc5c918e 964 int64_t start_pos = url_ftell(pb);
bb270c08 965 int size = get_be32(pb); /* size */
baf9fb32 966 uint32_t format = get_le32(pb); /* data format */
5cd62665 967
28155113
BC
968 if (size >= 16) {
969 get_be32(pb); /* reserved */
970 get_be16(pb); /* reserved */
971 dref_id = get_be16(pb);
972 }
0e7eed09 973
744a9c75 974 if (st->codec->codec_tag &&
978677a7 975 st->codec->codec_tag != format &&
1a40491e 976 (c->fc->video_codec_id ? ff_codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 977 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 978 ){
7ce68923
DB
979 /* Multiple fourcc, we skip JPEG. This is not correct, we should
980 * export it as a separate AVStream but this needs a few changes
981 * in the MOV demuxer, patch welcome. */
285a3da9 982 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
983 url_fskip(pb, size - (url_ftell(pb) - start_pos));
984 continue;
985 }
978677a7 986 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 987 sc->dref_id= dref_id;
e7cc4b52 988
bb270c08 989 st->codec->codec_tag = format;
1a40491e 990 id = ff_codec_get_id(codec_movaudio_tags, format);
86b61d42 991 if (id<=0 && ((format&0xFFFF) == 'm'+('s'<<8) || (format&0xFFFF) == 'T'+('S'<<8)))
1a40491e 992 id = ff_codec_get_id(ff_codec_wav_tags, bswap_32(format)&0xFFFF);
bca7db35 993
72415b2a
SS
994 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
995 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
996 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 997 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1a40491e 998 id = ff_codec_get_id(codec_movvideo_tags, format);
99487f42 999 if (id <= 0)
1a40491e 1000 id = ff_codec_get_id(ff_codec_bmp_tags, format);
99487f42 1001 if (id > 0)
72415b2a
SS
1002 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1003 else if(st->codec->codec_type == AVMEDIA_TYPE_DATA){
1a40491e 1004 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1e3c9307 1005 if(id > 0)
72415b2a 1006 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1e3c9307 1007 }
99487f42
BC
1008 }
1009
29c90869
BC
1010 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
1011 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1012 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 1013
72415b2a 1014 if(st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
08a186c6 1015 unsigned int color_depth, len;
baf9fb32 1016 int color_greyscale;
baf9fb32 1017
01f4895c 1018 st->codec->codec_id = id;
6cea494e
ZK
1019 get_be16(pb); /* version */
1020 get_be16(pb); /* revision level */
1021 get_be32(pb); /* vendor */
1022 get_be32(pb); /* temporal quality */
94472c1d 1023 get_be32(pb); /* spatial quality */
3cb4ee51
BC
1024
1025 st->codec->width = get_be16(pb); /* width */
1026 st->codec->height = get_be16(pb); /* height */
1027
6cea494e
ZK
1028 get_be32(pb); /* horiz resolution */
1029 get_be32(pb); /* vert resolution */
1030 get_be32(pb); /* data size, always 0 */
43612ffe 1031 get_be16(pb); /* frames per samples */
f8c18cd7 1032
08a186c6
BC
1033 len = get_byte(pb); /* codec name, pascal string */
1034 if (len > 31)
1035 len = 31;
1036 mov_read_mac_string(c, pb, len, st->codec->codec_name, 32);
1037 if (len < 31)
1038 url_fskip(pb, 31 - len);
1039 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1040 if (!memcmp(st->codec->codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25))
1041 st->codec->codec_tag=MKTAG('I', '4', '2', '0');
5cd62665 1042
dd1c8f3e 1043 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
01f4895c 1044 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f 1045 dprintf(c->fc, "depth %d, ctab id %d\n",
dd1c8f3e 1046 st->codec->bits_per_coded_sample, st->codec->color_table_id);
b595afaa 1047 /* figure out the palette situation */
dd1c8f3e
LA
1048 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1049 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
b595afaa
MM
1050
1051 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 1052 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 1053 (color_depth == 8)) {
47e1d7ef
BC
1054 /* for palette traversal */
1055 unsigned int color_start, color_count, color_end;
1056 unsigned char r, g, b;
1057
e49da827 1058 st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
b595afaa 1059 if (color_greyscale) {
47e1d7ef 1060 int color_index, color_dec;
b595afaa 1061 /* compute the greyscale palette */
dd1c8f3e 1062 st->codec->bits_per_coded_sample = color_depth;
b595afaa
MM
1063 color_count = 1 << color_depth;
1064 color_index = 255;
1065 color_dec = 256 / (color_count - 1);
1066 for (j = 0; j < color_count; j++) {
1067 r = g = b = color_index;
e49da827 1068 st->codec->palctrl->palette[j] =
b595afaa
MM
1069 (r << 16) | (g << 8) | (b);
1070 color_index -= color_dec;
1071 if (color_index < 0)
1072 color_index = 0;
1073 }
71f36235 1074 } else if (st->codec->color_table_id) {
47e1d7ef 1075 const uint8_t *color_table;
b595afaa
MM
1076 /* if flag bit 3 is set, use the default palette */
1077 color_count = 1 << color_depth;
1078 if (color_depth == 2)
a90466f7 1079 color_table = ff_qt_default_palette_4;
b595afaa 1080 else if (color_depth == 4)
a90466f7 1081 color_table = ff_qt_default_palette_16;
b595afaa 1082 else
a90466f7 1083 color_table = ff_qt_default_palette_256;
b595afaa
MM
1084
1085 for (j = 0; j < color_count; j++) {
2121b160
RB
1086 r = color_table[j * 3 + 0];
1087 g = color_table[j * 3 + 1];
1088 b = color_table[j * 3 + 2];
e49da827 1089 st->codec->palctrl->palette[j] =
b595afaa
MM
1090 (r << 16) | (g << 8) | (b);
1091 }
b595afaa 1092 } else {
b595afaa
MM
1093 /* load the palette from the file */
1094 color_start = get_be32(pb);
1095 color_count = get_be16(pb);
1096 color_end = get_be16(pb);
8b35bd80
MM
1097 if ((color_start <= 255) &&
1098 (color_end <= 255)) {
9de2919c
MM
1099 for (j = color_start; j <= color_end; j++) {
1100 /* each R, G, or B component is 16 bits;
1101 * only use the top 8 bits; skip alpha bytes
1102 * up front */
1103 get_byte(pb);
1104 get_byte(pb);
1105 r = get_byte(pb);
1106 get_byte(pb);
1107 g = get_byte(pb);
1108 get_byte(pb);
1109 b = get_byte(pb);
1110 get_byte(pb);
e49da827 1111 st->codec->palctrl->palette[j] =
9de2919c 1112 (r << 16) | (g << 8) | (b);
8b35bd80 1113 }
b595afaa
MM
1114 }
1115 }
01f4895c 1116 st->codec->palctrl->palette_changed = 1;
e49da827 1117 }
72415b2a 1118 } else if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
aaef2bb3 1119 int bits_per_sample, flags;
de23f234 1120 uint16_t version = get_be16(pb);
b595afaa 1121
99487f42 1122 st->codec->codec_id = id;
de23f234
BC
1123 get_be16(pb); /* revision level */
1124 get_be32(pb); /* vendor */
6d6d7970 1125
de23f234 1126 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 1127 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
dd1c8f3e 1128 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
de23f234 1129
77c75437 1130 sc->audio_cid = get_be16(pb);
de23f234
BC
1131 get_be16(pb); /* packet size = 0 */
1132
1133 st->codec->sample_rate = ((get_be32(pb) >> 16));
1134
5ef3ad59
BC
1135 //Read QT version 1 fields. In version 0 these do not exist.
1136 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
1137 if(!c->isom) {
1138 if(version==1) {
1139 sc->samples_per_frame = get_be32(pb);
1140 get_be32(pb); /* bytes per packet */
1141 sc->bytes_per_frame = get_be32(pb);
1142 get_be32(pb); /* bytes per sample */
1143 } else if(version==2) {
1144 get_be32(pb); /* sizeof struct only */
1145 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
1146 st->codec->channels = get_be32(pb);
1147 get_be32(pb); /* always 0x7F000000 */
dd1c8f3e 1148 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
6866dd12 1149 flags = get_be32(pb); /* lpcm format specific flag */
9184d53a
BC
1150 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
1151 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f 1152 if (format == MKTAG('l','p','c','m'))
2d423666 1153 st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
5ef3ad59
BC
1154 }
1155 }
1156
de23f234 1157 switch (st->codec->codec_id) {
b72708f8
BC
1158 case CODEC_ID_PCM_S8:
1159 case CODEC_ID_PCM_U8:
dd1c8f3e 1160 if (st->codec->bits_per_coded_sample == 16)
b72708f8
BC
1161 st->codec->codec_id = CODEC_ID_PCM_S16BE;
1162 break;
0dd39bfe 1163 case CODEC_ID_PCM_S16LE:
de23f234 1164 case CODEC_ID_PCM_S16BE:
dd1c8f3e 1165 if (st->codec->bits_per_coded_sample == 8)
de23f234 1166 st->codec->codec_id = CODEC_ID_PCM_S8;
dd1c8f3e 1167 else if (st->codec->bits_per_coded_sample == 24)
6b477e1b
BC
1168 st->codec->codec_id =
1169 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
1170 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 1171 break;
53152765
BC
1172 /* set values for old format before stsd version 1 appeared */
1173 case CODEC_ID_MACE3:
1174 sc->samples_per_frame = 6;
1175 sc->bytes_per_frame = 2*st->codec->channels;
1176 break;
1177 case CODEC_ID_MACE6:
1178 sc->samples_per_frame = 6;
1179 sc->bytes_per_frame = 1*st->codec->channels;
1180 break;
1181 case CODEC_ID_ADPCM_IMA_QT:
1182 sc->samples_per_frame = 64;
1183 sc->bytes_per_frame = 34*st->codec->channels;
1184 break;
cc326d2b
BC
1185 case CODEC_ID_GSM:
1186 sc->samples_per_frame = 160;
1187 sc->bytes_per_frame = 33;
1188 break;
de23f234
BC
1189 default:
1190 break;
6d6d7970 1191 }
14342fd5 1192
9770089d
BC
1193 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1194 if (bits_per_sample) {
dd1c8f3e 1195 st->codec->bits_per_coded_sample = bits_per_sample;
9770089d
BC
1196 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1197 }
72415b2a 1198 } else if(st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
58e9f2ed
DC
1199 // ttxt stsd contains display flags, justification, background
1200 // color, fonts, and default styles, so fake an atom to read it
1201 MOVAtom fake_atom = { .size = size - (url_ftell(pb) - start_pos) };
fb9ac654 1202 if (format != AV_RL32("mp4s")) // mp4s contains a regular esds atom
3dd36041 1203 mov_read_glbl(c, pb, fake_atom);
cc8d87b7 1204 st->codec->codec_id= id;
6cdbff63
DC
1205 st->codec->width = sc->width;
1206 st->codec->height = sc->height;
de23f234
BC
1207 } else {
1208 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
1209 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 1210 }
de23f234
BC
1211 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
1212 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
1213 if (a.size > 8) {
1214 if (mov_read_default(c, pb, a) < 0)
1215 return -1;
1216 } else if (a.size > 0)
de23f234 1217 url_fskip(pb, a.size);
6cea494e 1218 }
115329f1 1219
72415b2a 1220 if(st->codec->codec_type==AVMEDIA_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 1221 st->codec->sample_rate= sc->time_scale;
e31bd3e3 1222
d00f8e17 1223 /* special codec parameters handling */
e31bd3e3 1224 switch (st->codec->codec_id) {
b250f9c6 1225#if CONFIG_DV_DEMUXER
b60c0454 1226 case CODEC_ID_DVAUDIO:
8e2fd8e1 1227 c->dv_fctx = avformat_alloc_context();
b60c0454
BC
1228 c->dv_demux = dv_init_demux(c->dv_fctx);
1229 if (!c->dv_demux) {
1230 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1231 return -1;
1232 }
1233 sc->dv_audio_container = 1;
1234 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1235 break;
989ac5a6 1236#endif
b95319a2 1237 /* no ifdef since parameters are always those */
3f78a3a9 1238 case CODEC_ID_QCELP:
17ad7b24
BC
1239 // force sample rate for qcelp when not stored in mov
1240 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1241 st->codec->sample_rate = 8000;
73b458e3 1242 st->codec->frame_size= 160;
061f407e 1243 st->codec->channels= 1; /* really needed */
73b458e3 1244 break;
b95319a2 1245 case CODEC_ID_AMR_NB:
aeb62788 1246 case CODEC_ID_AMR_WB:
cfb5a2ab 1247 st->codec->frame_size= sc->samples_per_frame;
b95319a2 1248 st->codec->channels= 1; /* really needed */
f06188d5 1249 /* force sample rate for amr, stsd in 3gp does not store sample rate */
5b9ce252 1250 if (st->codec->codec_id == CODEC_ID_AMR_NB)
f06188d5 1251 st->codec->sample_rate = 8000;
5b9ce252
BC
1252 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
1253 st->codec->sample_rate = 16000;
b95319a2 1254 break;
a41104f8 1255 case CODEC_ID_MP2:
c59f24e6 1256 case CODEC_ID_MP3:
72415b2a 1257 st->codec->codec_type = AVMEDIA_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 1258 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 1259 break;
5610f20e 1260 case CODEC_ID_GSM:
74e9b9ae
BC
1261 case CODEC_ID_ADPCM_MS:
1262 case CODEC_ID_ADPCM_IMA_WAV:
1263 st->codec->block_align = sc->bytes_per_frame;
1264 break;
be511925 1265 case CODEC_ID_ALAC:
a1532824 1266 if (st->codec->extradata_size == 36) {
364df7b7
BC
1267 st->codec->frame_size = AV_RB32(st->codec->extradata+12);
1268 st->codec->channels = AV_RB8 (st->codec->extradata+21);
a1532824 1269 }
be511925 1270 break;
e31bd3e3
BC
1271 default:
1272 break;
1273 }
5cd62665 1274
6cea494e
ZK
1275 return 0;
1276}
1277
c3e92a6c 1278static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 1279{
6a63ff19
BC
1280 AVStream *st;
1281 MOVStreamContext *sc;
568e18b1 1282 unsigned int i, entries;
b6a17df4 1283
6a63ff19
BC
1284 if (c->fc->nb_streams < 1)
1285 return 0;
1286 st = c->fc->streams[c->fc->nb_streams-1];
1287 sc = st->priv_data;
1288
6cea494e 1289 get_byte(pb); /* version */
23f08617 1290 get_be24(pb); /* flags */
6cea494e
ZK
1291
1292 entries = get_be32(pb);
115329f1 1293
f8c18cd7
BC
1294 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1295
0d8f0abf
BC
1296 if(entries >= UINT_MAX / sizeof(*sc->stsc_data))
1297 return -1;
04e06cfa
BC
1298 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1299 if (!sc->stsc_data)
0d8f0abf
BC
1300 return AVERROR(ENOMEM);
1301 sc->stsc_count = entries;
1302
6cea494e 1303 for(i=0; i<entries; i++) {
04e06cfa
BC
1304 sc->stsc_data[i].first = get_be32(pb);
1305 sc->stsc_data[i].count = get_be32(pb);
1306 sc->stsc_data[i].id = get_be32(pb);
6cea494e
ZK
1307 }
1308 return 0;
1309}
1310
171a3531
BC
1311static int mov_read_stps(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1312{
1313 AVStream *st;
1314 MOVStreamContext *sc;
1315 unsigned i, entries;
1316
1317 if (c->fc->nb_streams < 1)
1318 return 0;
1319 st = c->fc->streams[c->fc->nb_streams-1];
1320 sc = st->priv_data;
1321
1322 get_be32(pb); // version + flags
1323
1324 entries = get_be32(pb);
1325 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1326 return -1;
1327 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1328 if (!sc->stps_data)
1329 return AVERROR(ENOMEM);
1330 sc->stps_count = entries;
1331
1332 for (i = 0; i < entries; i++) {
1333 sc->stps_data[i] = get_be32(pb);
1334 //dprintf(c->fc, "stps %d\n", sc->stps_data[i]);
1335 }
1336
1337 return 0;
1338}
1339
c3e92a6c 1340static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
247d56f5 1341{
6a63ff19
BC
1342 AVStream *st;
1343 MOVStreamContext *sc;
568e18b1 1344 unsigned int i, entries;
247d56f5 1345
6a63ff19
BC
1346 if (c->fc->nb_streams < 1)
1347 return 0;
1348 st = c->fc->streams[c->fc->nb_streams-1];
1349 sc = st->priv_data;
1350
247d56f5 1351 get_byte(pb); /* version */
23f08617 1352 get_be24(pb); /* flags */
247d56f5
BB
1353
1354 entries = get_be32(pb);
115329f1 1355
0d8f0abf
BC
1356 dprintf(c->fc, "keyframe_count = %d\n", entries);
1357
1c02d96f 1358 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1359 return -1;
1c02d96f 1360 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5 1361 if (!sc->keyframes)
0d8f0abf
BC
1362 return AVERROR(ENOMEM);
1363 sc->keyframe_count = entries;
1364
247d56f5
BB
1365 for(i=0; i<entries; i++) {
1366 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1367 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1368 }
1369 return 0;
1370}
1371
c3e92a6c 1372static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
6cea494e 1373{
6a63ff19
BC
1374 AVStream *st;
1375 MOVStreamContext *sc;
bd27eed6
AC
1376 unsigned int i, entries, sample_size, field_size, num_bytes;
1377 GetBitContext gb;
1378 unsigned char* buf;
b6a17df4 1379
6a63ff19
BC
1380 if (c->fc->nb_streams < 1)
1381 return 0;
1382 st = c->fc->streams[c->fc->nb_streams-1];
1383 sc = st->priv_data;
1384
6cea494e 1385 get_byte(pb); /* version */
23f08617 1386 get_be24(pb); /* flags */
5cd62665 1387
bd27eed6 1388 if (atom.type == MKTAG('s','t','s','z')) {
d0dab0ec
AC
1389 sample_size = get_be32(pb);
1390 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1391 sc->sample_size = sample_size;
1392 field_size = 32;
bd27eed6
AC
1393 } else {
1394 sample_size = 0;
1395 get_be24(pb); /* reserved */
1396 field_size = get_byte(pb);
1397 }
6cea494e 1398 entries = get_be32(pb);
0d8f0abf
BC
1399
1400 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
568e18b1 1401
6cea494e 1402 sc->sample_count = entries;
b72708f8
BC
1403 if (sample_size)
1404 return 0;
1405
bd27eed6
AC
1406 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1407 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1408 return -1;
1409 }
1410
e4bc8af1 1411 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
0d8f0abf 1412 return -1;
1c02d96f 1413 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4 1414 if (!sc->sample_sizes)
0d8f0abf
BC
1415 return AVERROR(ENOMEM);
1416
bd27eed6
AC
1417 num_bytes = (entries*field_size+4)>>3;
1418
08a5b4e9 1419 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
bd27eed6
AC
1420 if (!buf) {
1421 av_freep(&sc->sample_sizes);
1422 return AVERROR(ENOMEM);
1423 }
1424
1425 if (get_buffer(pb, buf, num_bytes) < num_bytes) {
1426 av_freep(&sc->sample_sizes);
1427 av_free(buf);
1428 return -1;
1429 }
1430
1431 init_get_bits(&gb, buf, 8*num_bytes);
1432
eb61405a 1433 for(i=0; i<entries; i++)
bd27eed6
AC
1434 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
1435
1436 av_free(buf);
6cea494e
ZK
1437 return 0;
1438}
1439
c3e92a6c 1440static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 1441{
6a63ff19
BC
1442 AVStream *st;
1443 MOVStreamContext *sc;
568e18b1 1444 unsigned int i, entries;
d957696f
MN
1445 int64_t duration=0;
1446 int64_t total_sample_count=0;
b6a17df4 1447
6a63ff19
BC
1448 if (c->fc->nb_streams < 1)
1449 return 0;
1450 st = c->fc->streams[c->fc->nb_streams-1];
1451 sc = st->priv_data;
1452
0147f198 1453 get_byte(pb); /* version */
23f08617 1454 get_be24(pb); /* flags */
0147f198 1455 entries = get_be32(pb);
0d8f0abf
BC
1456
1457 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1458
c3e92a6c 1459 if(entries >= UINT_MAX / sizeof(*sc->stts_data))
568e18b1 1460 return -1;
c3e92a6c 1461 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
c1da59fa 1462 if (!sc->stts_data)
0d8f0abf
BC
1463 return AVERROR(ENOMEM);
1464 sc->stts_count = entries;
cd7352d5 1465
0147f198 1466 for(i=0; i<entries; i++) {
cd461d48
MN
1467 int sample_duration;
1468 int sample_count;
0147f198 1469
891f64b3 1470 sample_count=get_be32(pb);
0147f198 1471 sample_duration = get_be32(pb);
cd7352d5
MN
1472 sc->stts_data[i].count= sample_count;
1473 sc->stts_data[i].duration= sample_duration;
1474
318c5e05 1475 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1476
7e815047 1477 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1478 total_sample_count+=sample_count;
891f64b3 1479 }
1480
961e0ccd
MN
1481 st->nb_frames= total_sample_count;
1482 if(duration)
1483 st->duration= duration;
0147f198
FR
1484 return 0;
1485}
1486
c3e92a6c 1487static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
c4ac052b 1488{
6a63ff19
BC
1489 AVStream *st;
1490 MOVStreamContext *sc;
c4ac052b
MN
1491 unsigned int i, entries;
1492
6a63ff19
BC
1493 if (c->fc->nb_streams < 1)
1494 return 0;
1495 st = c->fc->streams[c->fc->nb_streams-1];
1496 sc = st->priv_data;
1497
c4ac052b 1498 get_byte(pb); /* version */
23f08617 1499 get_be24(pb); /* flags */
c4ac052b 1500 entries = get_be32(pb);
0d8f0abf
BC
1501
1502 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1503
c3e92a6c 1504 if(entries >= UINT_MAX / sizeof(*sc->ctts_data))
c4ac052b 1505 return -1;
c3e92a6c 1506 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
c1da59fa 1507 if (!sc->ctts_data)
0d8f0abf
BC
1508 return AVERROR(ENOMEM);
1509 sc->ctts_count = entries;
4e5ef14f 1510
c4ac052b 1511 for(i=0; i<entries; i++) {
70a61ed4
MN
1512 int count =get_be32(pb);
1513 int duration =get_be32(pb);
1514
1515 sc->ctts_data[i].count = count;
1516 sc->ctts_data[i].duration= duration;
e7452721
BC
1517 if (duration < 0)
1518 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
c4ac052b 1519 }
e7452721 1520
bddc2df5 1521 dprintf(c->fc, "dts shift %d\n", sc->dts_shift);
e7452721 1522
c4ac052b
MN
1523 return 0;
1524}
1525
1e77810d
BC
1526static void mov_build_index(MOVContext *mov, AVStream *st)
1527{
1528 MOVStreamContext *sc = st->priv_data;
bc5c918e 1529 int64_t current_offset;
1e77810d
BC
1530 int64_t current_dts = 0;
1531 unsigned int stts_index = 0;
1532 unsigned int stsc_index = 0;
1533 unsigned int stss_index = 0;
171a3531 1534 unsigned int stps_index = 0;
1e77810d 1535 unsigned int i, j;
c5898e86 1536 uint64_t stream_size = 0;
1e77810d 1537
baf2ffd3
BC
1538 /* adjust first dts according to edit list */
1539 if (sc->time_offset) {
2ac736a6 1540 int rescaled = sc->time_offset < 0 ? av_rescale(sc->time_offset, sc->time_scale, mov->time_scale) : sc->time_offset;
bbe46bc4 1541 current_dts = -rescaled;
f03a081d
BC
1542 if (sc->ctts_data && sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
1543 /* more than 16 frames delay, dts are likely wrong
1544 this happens with files created by iMovie */
1545 sc->wrong_dts = 1;
1546 st->codec->has_b_frames = 1;
1547 }
baf2ffd3
BC
1548 }
1549
d3bc61ac 1550 /* only use old uncompressed audio chunk demuxing when stts specifies it */
72415b2a 1551 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
d3bc61ac 1552 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1553 unsigned int current_sample = 0;
1554 unsigned int stts_sample = 0;
171a3531 1555 unsigned int sample_size;
1e77810d
BC
1556 unsigned int distance = 0;
1557 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1558
4b29ed39
BC
1559 current_dts -= sc->dts_shift;
1560
987e857f
BC
1561 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries))
1562 return;
1563 st->index_entries = av_malloc(sc->sample_count*sizeof(*st->index_entries));
1564 if (!st->index_entries)
1565 return;
1566 st->index_entries_allocated_size = sc->sample_count*sizeof(*st->index_entries);
1567
1e77810d
BC
1568 for (i = 0; i < sc->chunk_count; i++) {
1569 current_offset = sc->chunk_offsets[i];
04e06cfa
BC
1570 if (stsc_index + 1 < sc->stsc_count &&
1571 i + 1 == sc->stsc_data[stsc_index + 1].first)
1e77810d 1572 stsc_index++;
04e06cfa 1573 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
171a3531 1574 int keyframe = 0;
1e77810d
BC
1575 if (current_sample >= sc->sample_count) {
1576 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
f0f2218d 1577 return;
1e77810d 1578 }
171a3531
BC
1579
1580 if (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index]) {
1581 keyframe = 1;
1e77810d
BC
1582 if (stss_index + 1 < sc->keyframe_count)
1583 stss_index++;
171a3531
BC
1584 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
1585 keyframe = 1;
1586 if (stps_index + 1 < sc->stps_count)
1587 stps_index++;
1e77810d 1588 }
171a3531
BC
1589 if (keyframe)
1590 distance = 0;
1e77810d 1591 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1592 if(sc->pseudo_stream_id == -1 ||
04e06cfa 1593 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
987e857f
BC
1594 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
1595 e->pos = current_offset;
1596 e->timestamp = current_dts;
1597 e->size = sample_size;
1598 e->min_distance = distance;
1599 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
585dac65
BC
1600 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1601 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1602 current_offset, current_dts, sample_size, distance, keyframe);
1603 }
6c00a9de 1604
1e77810d 1605 current_offset += sample_size;
c5898e86 1606 stream_size += sample_size;
bbe46bc4 1607 current_dts += sc->stts_data[stts_index].duration;
1e77810d
BC
1608 distance++;
1609 stts_sample++;
1610 current_sample++;
1611 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1612 stts_sample = 0;
1613 stts_index++;
1614 }
1615 }
1616 }
fedb1eca
BC
1617 if (st->duration > 0)
1618 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
7e69621f 1619 } else {
987e857f 1620 unsigned chunk_samples, total = 0;
7e69621f 1621
987e857f
BC
1622 // compute total chunk count
1623 for (i = 0; i < sc->stsc_count; i++) {
1624 unsigned count, chunk_count;
7e69621f 1625
987e857f 1626 chunk_samples = sc->stsc_data[i].count;
7e69621f
BC
1627 if (sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
1628 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
1629 return;
1630 }
1631
987e857f
BC
1632 if (sc->samples_per_frame >= 160) { // gsm
1633 count = chunk_samples / sc->samples_per_frame;
1634 } else if (sc->samples_per_frame > 1) {
1635 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
1636 count = (chunk_samples+samples-1) / samples;
1637 } else {
1638 count = (chunk_samples+1023) / 1024;
1639 }
1640
1641 if (i < sc->stsc_count - 1)
1642 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
1643 else
1644 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
1645 total += chunk_count * count;
1646 }
1647
1648 dprintf(mov->fc, "chunk count %d\n", total);
1649 if (total >= UINT_MAX / sizeof(*st->index_entries))
1650 return;
1651 st->index_entries = av_malloc(total*sizeof(*st->index_entries));
1652 if (!st->index_entries)
1653 return;
1654 st->index_entries_allocated_size = total*sizeof(*st->index_entries);
1655
1656 // populate index
1657 for (i = 0; i < sc->chunk_count; i++) {
1658 current_offset = sc->chunk_offsets[i];
1659 if (stsc_index + 1 < sc->stsc_count &&
1660 i + 1 == sc->stsc_data[stsc_index + 1].first)
1661 stsc_index++;
1662 chunk_samples = sc->stsc_data[stsc_index].count;
1663
7e69621f 1664 while (chunk_samples > 0) {
987e857f 1665 AVIndexEntry *e;
7e69621f
BC
1666 unsigned size, samples;
1667
1668 if (sc->samples_per_frame >= 160) { // gsm
1669 samples = sc->samples_per_frame;
1670 size = sc->bytes_per_frame;
1671 } else {
1672 if (sc->samples_per_frame > 1) {
1673 samples = FFMIN((1024 / sc->samples_per_frame)*
1674 sc->samples_per_frame, chunk_samples);
1675 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
1e77810d 1676 } else {
7e69621f
BC
1677 samples = FFMIN(1024, chunk_samples);
1678 size = samples * sc->sample_size;
1e77810d
BC
1679 }
1680 }
7e69621f 1681
987e857f
BC
1682 if (st->nb_index_entries >= total) {
1683 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
1684 return;
1685 }
1686 e = &st->index_entries[st->nb_index_entries++];
1687 e->pos = current_offset;
1688 e->timestamp = current_dts;
1689 e->size = size;
1690 e->min_distance = 0;
1691 e->flags = AVINDEX_KEYFRAME;
117a9190
BC
1692 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1693 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
7e69621f
BC
1694 size, samples);
1695
1696 current_offset += size;
bbe46bc4 1697 current_dts += samples;
7e69621f 1698 chunk_samples -= samples;
1e77810d
BC
1699 }
1700 }
1701 }
1e77810d 1702}
bd991df2 1703
adeb9071
BC
1704static int mov_open_dref(ByteIOContext **pb, char *src, MOVDref *ref)
1705{
6a245905
MN
1706 /* try relative path, we do not try the absolute because it can leak information about our
1707 system to an attacker */
adeb9071
BC
1708 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
1709 char filename[1024];
1710 char *src_path;
1711 int i, l;
1712
1713 /* find a source dir */
1714 src_path = strrchr(src, '/');
1715 if (src_path)
1716 src_path++;
1717 else
1718 src_path = src;
1719
1720 /* find a next level down to target */
1721 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
1722 if (ref->path[l] == '/') {
1723 if (i == ref->nlvl_to - 1)
1724 break;
1725 else
1726 i++;
1727 }
1728
1729 /* compose filename if next level down to target was found */
bbdf0d22 1730 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
adeb9071
BC
1731 memcpy(filename, src, src_path - src);
1732 filename[src_path - src] = 0;
1733
1734 for (i = 1; i < ref->nlvl_from; i++)
1735 av_strlcat(filename, "../", 1024);
1736
1737 av_strlcat(filename, ref->path + l + 1, 1024);
1738
1739 if (!url_fopen(pb, filename, URL_RDONLY))
1740 return 0;
1741 }
1742 }
1743
1744 return AVERROR(ENOENT);
1745};
1746
c3e92a6c 1747static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
1748{
1749 AVStream *st;
1750 MOVStreamContext *sc;
bd991df2 1751 int ret;
5ca1d879 1752
5ca1d879 1753 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1754 if (!st) return AVERROR(ENOMEM);
9a630c25 1755 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1756 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1757
5ca1d879 1758 st->priv_data = sc;
72415b2a 1759 st->codec->codec_type = AVMEDIA_TYPE_DATA;
64d50fa5 1760 sc->ffindex = st->index;
5ca1d879 1761
bd991df2
BC
1762 if ((ret = mov_read_default(c, pb, atom)) < 0)
1763 return ret;
1764
1765 /* sanity checks */
6c00a9de
BC
1766 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
1767 (!sc->sample_size && !sc->sample_count))) {
6282c5f4
BC
1768 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1769 st->index);
bd991df2
BC
1770 return 0;
1771 }
6c00a9de 1772
507330b9
BC
1773 if (!sc->time_scale) {
1774 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", st->index);
6c00a9de 1775 sc->time_scale = c->time_scale;
507330b9
BC
1776 if (!sc->time_scale)
1777 sc->time_scale = 1;
1778 }
6c00a9de 1779
bbe46bc4 1780 av_set_pts_info(st, 64, 1, sc->time_scale);
bd991df2 1781
72415b2a 1782 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
5b4f5e5d
BC
1783 !st->codec->frame_size && sc->stts_count == 1) {
1784 st->codec->frame_size = av_rescale(sc->stts_data[0].duration,
1785 st->codec->sample_rate, sc->time_scale);
1786 dprintf(c->fc, "frame size %d\n", st->codec->frame_size);
1787 }
bd991df2 1788
bd991df2
BC
1789 mov_build_index(c, st);
1790
1791 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
adeb9071
BC
1792 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
1793 if (mov_open_dref(&sc->pb, c->fc->filename, dref) < 0)
1794 av_log(c->fc, AV_LOG_ERROR,
1795 "stream %d, error opening alias: path='%s', dir='%s', "
1796 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
1797 st->index, dref->path, dref->dir, dref->filename,
1798 dref->volume, dref->nlvl_from, dref->nlvl_to);
bd991df2
BC
1799 } else
1800 sc->pb = c->fc->pb;
1801
72415b2a 1802 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
c3aeaa54 1803 if (st->codec->width != sc->width || st->codec->height != sc->height) {
49c43fc2
BC
1804 AVRational r = av_d2q(((double)st->codec->height * sc->width) /
1805 ((double)st->codec->width * sc->height), INT_MAX);
1806 if (st->sample_aspect_ratio.num)
1807 st->sample_aspect_ratio = av_mul_q(st->sample_aspect_ratio, r);
1808 else
1809 st->sample_aspect_ratio = r;
c3aeaa54
BC
1810 }
1811
1812 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
1813 sc->time_scale*st->nb_frames, st->duration, INT_MAX);
c9566115
BC
1814 }
1815
bd991df2 1816 switch (st->codec->codec_id) {
b250f9c6 1817#if CONFIG_H261_DECODER
bd991df2
BC
1818 case CODEC_ID_H261:
1819#endif
b250f9c6 1820#if CONFIG_H263_DECODER
bd991df2
BC
1821 case CODEC_ID_H263:
1822#endif
a0dd3c00
BC
1823#if CONFIG_H264_DECODER
1824 case CODEC_ID_H264:
1825#endif
b250f9c6 1826#if CONFIG_MPEG4_DECODER
bd991df2
BC
1827 case CODEC_ID_MPEG4:
1828#endif
6c00a9de 1829 st->codec->width = 0; /* let decoder init width/height */
bd991df2
BC
1830 st->codec->height= 0;
1831 break;
bd991df2 1832 }
f9900374
BC
1833
1834 /* Do not need those anymore. */
1835 av_freep(&sc->chunk_offsets);
04e06cfa 1836 av_freep(&sc->stsc_data);
f9900374
BC
1837 av_freep(&sc->sample_sizes);
1838 av_freep(&sc->keyframes);
1839 av_freep(&sc->stts_data);
171a3531 1840 av_freep(&sc->stps_data);
f9900374 1841
bd991df2 1842 return 0;
5ca1d879
ZK
1843}
1844
c3e92a6c 1845static int mov_read_ilst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201
BC
1846{
1847 int ret;
1848 c->itunes_metadata = 1;
1849 ret = mov_read_default(c, pb, atom);
1850 c->itunes_metadata = 0;
1851 return ret;
1852}
1853
c3e92a6c 1854static int mov_read_meta(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
51c15201 1855{
df8843c6
BC
1856 while (atom.size > 8) {
1857 uint32_t tag = get_le32(pb);
1858 atom.size -= 4;
1859 if (tag == MKTAG('h','d','l','r')) {
1860 url_fseek(pb, -8, SEEK_CUR);
1861 atom.size += 8;
1862 return mov_read_default(c, pb, atom);
1863 }
1864 }
1865 return 0;
51c15201
BC
1866}
1867
c3e92a6c 1868static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879 1869{
ec072669
JS
1870 int i;
1871 int width;
1872 int height;
1873 int64_t disp_transform[2];
1874 int display_matrix[3][2];
6a63ff19
BC
1875 AVStream *st;
1876 MOVStreamContext *sc;
1877 int version;
1878
1879 if (c->fc->nb_streams < 1)
1880 return 0;
1881 st = c->fc->streams[c->fc->nb_streams-1];
1882 sc = st->priv_data;
5ca1d879 1883
6a63ff19 1884 version = get_byte(pb);
23f08617 1885 get_be24(pb); /* flags */
5ca1d879
ZK
1886 /*
1887 MOV_TRACK_ENABLED 0x0001
1888 MOV_TRACK_IN_MOVIE 0x0002
1889 MOV_TRACK_IN_PREVIEW 0x0004
1890 MOV_TRACK_IN_POSTER 0x0008
1891 */
1892
1175561e
BC
1893 if (version == 1) {
1894 get_be64(pb);
1895 get_be64(pb);
1896 } else {
1897 get_be32(pb); /* creation time */
1898 get_be32(pb); /* modification time */
1899 }
5ca1d879
ZK
1900 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1901 get_be32(pb); /* reserved */
fcdd622c 1902
117a9190
BC
1903 /* highlevel (considering edits) duration in movie timebase */
1904 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1905 get_be32(pb); /* reserved */
1906 get_be32(pb); /* reserved */
1907
1908 get_be16(pb); /* layer */
1909 get_be16(pb); /* alternate group */
1910 get_be16(pb); /* volume */
1911 get_be16(pb); /* reserved */
1912
ec072669
JS
1913 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1914 // they're kept in fixed point format through all calculations
1915 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1916 for (i = 0; i < 3; i++) {
1917 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1918 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1919 get_be32(pb); // 2.30 fixed point (not used)
1920 }
5ca1d879 1921
ec072669
JS
1922 width = get_be32(pb); // 16.16 fixed point track width
1923 height = get_be32(pb); // 16.16 fixed point track height
6cdbff63
DC
1924 sc->width = width >> 16;
1925 sc->height = height >> 16;
ec072669 1926
d862fce7 1927 // transform the display width/height according to the matrix
ec072669 1928 // skip this if the display matrix is the default identity matrix
d862fce7 1929 // or if it is rotating the picture, ex iPhone 3GS
ec072669
JS
1930 // to keep the same scale, use [width height 1<<16]
1931 if (width && height &&
d862fce7
BC
1932 ((display_matrix[0][0] != 65536 ||
1933 display_matrix[1][1] != 65536) &&
1934 !display_matrix[0][1] &&
1935 !display_matrix[1][0] &&
1936 !display_matrix[2][0] && !display_matrix[2][1])) {
ec072669
JS
1937 for (i = 0; i < 2; i++)
1938 disp_transform[i] =
1939 (int64_t) width * display_matrix[0][i] +
1940 (int64_t) height * display_matrix[1][i] +
1941 ((int64_t) display_matrix[2][i] << 16);
1942
1943 //sample aspect ratio is new width/height divided by old width/height
59729451 1944 st->sample_aspect_ratio = av_d2q(
ec072669
JS
1945 ((double) disp_transform[0] * height) /
1946 ((double) disp_transform[1] * width), INT_MAX);
1947 }
5ca1d879
ZK
1948 return 0;
1949}
1950
c3e92a6c 1951static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1952{
1953 MOVFragment *frag = &c->fragment;
1954 MOVTrackExt *trex = NULL;
1955 int flags, track_id, i;
1956
1957 get_byte(pb); /* version */
1958 flags = get_be24(pb);
1959
1960 track_id = get_be32(pb);
63581eb1 1961 if (!track_id)
61aedb0f
BC
1962 return -1;
1963 frag->track_id = track_id;
1964 for (i = 0; i < c->trex_count; i++)
1965 if (c->trex_data[i].track_id == frag->track_id) {
1966 trex = &c->trex_data[i];
1967 break;
1968 }
1969 if (!trex) {
1970 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1971 return -1;
1972 }
1973
1974 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1975 else frag->base_data_offset = frag->moof_offset;
1976 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1977 else frag->stsd_id = trex->stsd_id;
1978
1979 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1980 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1981 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1982 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1983 return 0;
1984}
1985
7221579b
DC
1986static int mov_read_chap(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1987{
1988 c->chapter_track = get_be32(pb);
1989 return 0;
1990}
1991
c3e92a6c 1992static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
1993{
1994 MOVTrackExt *trex;
1995
1996 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1997 return -1;
0d8f0abf
BC
1998 trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1999 if (!trex)
61aedb0f 2000 return AVERROR(ENOMEM);
0d8f0abf 2001 c->trex_data = trex;
61aedb0f
BC
2002 trex = &c->trex_data[c->trex_count++];
2003 get_byte(pb); /* version */
2004 get_be24(pb); /* flags */
2005 trex->track_id = get_be32(pb);
2006 trex->stsd_id = get_be32(pb);
2007 trex->duration = get_be32(pb);
2008 trex->size = get_be32(pb);
2009 trex->flags = get_be32(pb);
2010 return 0;
2011}
2012
c3e92a6c 2013static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
61aedb0f
BC
2014{
2015 MOVFragment *frag = &c->fragment;
63581eb1 2016 AVStream *st = NULL;
44e43aab 2017 MOVStreamContext *sc;
61aedb0f
BC
2018 uint64_t offset;
2019 int64_t dts;
2020 int data_offset = 0;
2021 unsigned entries, first_sample_flags = frag->flags;
2022 int flags, distance, i;
2023
63581eb1
AC
2024 for (i = 0; i < c->fc->nb_streams; i++) {
2025 if (c->fc->streams[i]->id == frag->track_id) {
2026 st = c->fc->streams[i];
2027 break;
2028 }
2029 }
2030 if (!st) {
2031 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
44e43aab 2032 return -1;
63581eb1 2033 }
44e43aab 2034 sc = st->priv_data;
61aedb0f
BC
2035 if (sc->pseudo_stream_id+1 != frag->stsd_id)
2036 return 0;
61aedb0f
BC
2037 get_byte(pb); /* version */
2038 flags = get_be24(pb);
2039 entries = get_be32(pb);
2040 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
2041 if (flags & 0x001) data_offset = get_be32(pb);
2042 if (flags & 0x004) first_sample_flags = get_be32(pb);
2043 if (flags & 0x800) {
0d8f0abf 2044 MOVStts *ctts_data;
61aedb0f
BC
2045 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
2046 return -1;
0d8f0abf
BC
2047 ctts_data = av_realloc(sc->ctts_data,
2048 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
2049 if (!ctts_data)
61aedb0f 2050 return AVERROR(ENOMEM);
0d8f0abf 2051 sc->ctts_data = ctts_data;
61aedb0f
BC
2052 }
2053 dts = st->duration;
2054 offset = frag->base_data_offset + data_offset;
2055 distance = 0;
2056 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
2057 for (i = 0; i < entries; i++) {
2058 unsigned sample_size = frag->size;
2059 int sample_flags = i ? frag->flags : first_sample_flags;
2060 unsigned sample_duration = frag->duration;
2061 int keyframe;
2062
2063 if (flags & 0x100) sample_duration = get_be32(pb);
2064 if (flags & 0x200) sample_size = get_be32(pb);
2065 if (flags & 0x400) sample_flags = get_be32(pb);
2066 if (flags & 0x800) {
2067 sc->ctts_data[sc->ctts_count].count = 1;
2068 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
2069 sc->ctts_count++;
2070 }
72415b2a 2071 if ((keyframe = st->codec->codec_type == AVMEDIA_TYPE_AUDIO ||
61aedb0f
BC
2072 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
2073 distance = 0;
2074 av_add_index_entry(st, offset, dts, sample_size, distance,
2075 keyframe ? AVINDEX_KEYFRAME : 0);
2076 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2077 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
2078 offset, dts, sample_size, distance, keyframe);
2079 distance++;
bbe46bc4 2080 dts += sample_duration;
61aedb0f
BC
2081 offset += sample_size;
2082 }
2083 frag->moof_offset = offset;
61aedb0f
BC
2084 st->duration = dts;
2085 return 0;
2086}
2087
5ca1d879
ZK
2088/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2089/* like the files created with Adobe Premiere 5.0, for samples see */
2090/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
c3e92a6c 2091static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
5ca1d879
ZK
2092{
2093 int err;
5ca1d879 2094
5ca1d879
ZK
2095 if (atom.size < 8)
2096 return 0; /* continue */
2097 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2098 url_fskip(pb, atom.size - 4);
2099 return 0;
2100 }
2101 atom.type = get_le32(pb);
5ca1d879 2102 atom.size -= 8;
1c126b4f 2103 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
2104 url_fskip(pb, atom.size);
2105 return 0;
2106 }
2107 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
2108 return err;
2109}
2110
c3e92a6c 2111static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
0147f198 2112{
b250f9c6 2113#if CONFIG_ZLIB
0147f198 2114 ByteIOContext ctx;
b6a17df4
ZK
2115 uint8_t *cmov_data;
2116 uint8_t *moov_data; /* uncompressed data */
0147f198 2117 long cmov_len, moov_len;
6f04eb1e 2118 int ret = -1;
b6a17df4 2119
0147f198 2120 get_be32(pb); /* dcom atom */
1c126b4f 2121 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 2122 return -1;
1c126b4f 2123 if (get_le32(pb) != MKTAG('z','l','i','b')) {
f3592353 2124 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
2125 return -1;
2126 }
2127 get_be32(pb); /* cmvd atom */
1c126b4f 2128 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
2129 return -1;
2130 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 2131 cmov_len = atom.size - 6 * 4;
5cd62665 2132
9a630c25 2133 cmov_data = av_malloc(cmov_len);
0147f198 2134 if (!cmov_data)
0d8f0abf 2135 return AVERROR(ENOMEM);
9a630c25 2136 moov_data = av_malloc(moov_len);
0147f198
FR
2137 if (!moov_data) {
2138 av_free(cmov_data);
0d8f0abf 2139 return AVERROR(ENOMEM);
0147f198
FR
2140 }
2141 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 2142 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 2143 goto free_and_return;
942f3bb5 2144 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 2145 goto free_and_return;
1c126b4f 2146 atom.type = MKTAG('m','o','o','v');
5ca1d879 2147 atom.size = moov_len;
9ed83b0a 2148#ifdef DEBUG
dbb4f00a 2149// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 2150#endif
5ca1d879 2151 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 2152free_and_return:
0147f198
FR
2153 av_free(moov_data);
2154 av_free(cmov_data);
2155 return ret;
d966b2f0
BC
2156#else
2157 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
2158 return -1;
0147f198 2159#endif
d966b2f0 2160}
0147f198 2161
baf25c9d 2162/* edit list atom */
c3e92a6c 2163static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
baf25c9d 2164{
1c4bf2ec 2165 MOVStreamContext *sc;
e0977c80
BC
2166 int i, edit_count;
2167
1c4bf2ec
BC
2168 if (c->fc->nb_streams < 1)
2169 return 0;
2170 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
2171
e0977c80 2172 get_byte(pb); /* version */
23f08617 2173 get_be24(pb); /* flags */
1975c52c 2174 edit_count = get_be32(pb); /* entries */
e0977c80 2175
53e099de
BC
2176 if((uint64_t)edit_count*12+8 > atom.size)
2177 return -1;
2178
e0977c80 2179 for(i=0; i<edit_count; i++){
d435e520 2180 int time;
2ac736a6 2181 int duration = get_be32(pb); /* Track duration */
d435e520 2182 time = get_be32(pb); /* Media time */
e0977c80 2183 get_be32(pb); /* Media rate */
2ac736a6
RD
2184 if (i == 0 && time >= -1) {
2185 sc->time_offset = time != -1 ? time : -duration;
a5929abe 2186 }
e0977c80 2187 }
baf2ffd3
BC
2188
2189 if(edit_count > 1)
2190 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
2191 "a/v desync might occur, patch welcome\n");
2192
4c125b8f 2193 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
e0977c80 2194 return 0;
baf25c9d
GC
2195}
2196
6cea494e 2197static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 2198{ MKTAG('a','v','s','s'), mov_read_extradata },
1cf9f6ed 2199{ MKTAG('c','h','p','l'), mov_read_chpl },
1c126b4f
BC
2200{ MKTAG('c','o','6','4'), mov_read_stco },
2201{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
2202{ MKTAG('d','i','n','f'), mov_read_default },
2203{ MKTAG('d','r','e','f'), mov_read_dref },
2204{ MKTAG('e','d','t','s'), mov_read_default },
2205{ MKTAG('e','l','s','t'), mov_read_elst },
2206{ MKTAG('e','n','d','a'), mov_read_enda },
2207{ MKTAG('f','i','e','l'), mov_read_extradata },
2208{ MKTAG('f','t','y','p'), mov_read_ftyp },
2209{ MKTAG('g','l','b','l'), mov_read_glbl },
2210{ MKTAG('h','d','l','r'), mov_read_hdlr },
51c15201 2211{ MKTAG('i','l','s','t'), mov_read_ilst },
1c126b4f
BC
2212{ MKTAG('j','p','2','h'), mov_read_extradata },
2213{ MKTAG('m','d','a','t'), mov_read_mdat },
2214{ MKTAG('m','d','h','d'), mov_read_mdhd },
2215{ MKTAG('m','d','i','a'), mov_read_default },
51c15201 2216{ MKTAG('m','e','t','a'), mov_read_meta },
1c126b4f
BC
2217{ MKTAG('m','i','n','f'), mov_read_default },
2218{ MKTAG('m','o','o','f'), mov_read_moof },
2219{ MKTAG('m','o','o','v'), mov_read_moov },
2220{ MKTAG('m','v','e','x'), mov_read_default },
2221{ MKTAG('m','v','h','d'), mov_read_mvhd },
2222{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
2223{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
2224{ MKTAG('a','v','c','C'), mov_read_glbl },
6da54074 2225{ MKTAG('p','a','s','p'), mov_read_pasp },
1c126b4f
BC
2226{ MKTAG('s','t','b','l'), mov_read_default },
2227{ MKTAG('s','t','c','o'), mov_read_stco },
171a3531 2228{ MKTAG('s','t','p','s'), mov_read_stps },
653d7aeb 2229{ MKTAG('s','t','r','f'), mov_read_strf },
1c126b4f
BC
2230{ MKTAG('s','t','s','c'), mov_read_stsc },
2231{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
2232{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
2233{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
2234{ MKTAG('s','t','t','s'), mov_read_stts },
bd27eed6 2235{ MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
1c126b4f
BC
2236{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
2237{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
2238{ MKTAG('t','r','a','k'), mov_read_trak },
2239{ MKTAG('t','r','a','f'), mov_read_default },
7221579b
DC
2240{ MKTAG('t','r','e','f'), mov_read_default },
2241{ MKTAG('c','h','a','p'), mov_read_chap },
1c126b4f
BC
2242{ MKTAG('t','r','e','x'), mov_read_trex },
2243{ MKTAG('t','r','u','n'), mov_read_trun },
86b0affd 2244{ MKTAG('u','d','t','a'), mov_read_default },
1c126b4f
BC
2245{ MKTAG('w','a','v','e'), mov_read_wave },
2246{ MKTAG('e','s','d','s'), mov_read_esds },
2247{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
2248{ MKTAG('c','m','o','v'), mov_read_cmov },
bcfe2ba0 2249{ 0, NULL }
6cea494e
ZK
2250};
2251
c9a65ca8
FB
2252static int mov_probe(AVProbeData *p)
2253{
0e7eed09
FB
2254 unsigned int offset;
2255 uint32_t tag;
2497479f 2256 int score = 0;
3ffe3793 2257
c9a65ca8 2258 /* check file header */
0e7eed09
FB
2259 offset = 0;
2260 for(;;) {
2261 /* ignore invalid offset */
2262 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 2263 return score;
fead30d4 2264 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 2265 switch(tag) {
2497479f 2266 /* check for obvious tags */
1c126b4f
BC
2267 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
2268 case MKTAG('m','o','o','v'):
2269 case MKTAG('m','d','a','t'):
2270 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
2271 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 2272 case MKTAG('f','t','y','p'):
3ffe3793 2273 return AVPROBE_SCORE_MAX;
2497479f 2274 /* those are more common words, so rate then a bit less */
1c126b4f
BC
2275 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
2276 case MKTAG('w','i','d','e'):
2277 case MKTAG('f','r','e','e'):
2278 case MKTAG('j','u','n','k'):
2279 case MKTAG('p','i','c','t'):
2497479f 2280 return AVPROBE_SCORE_MAX - 5;
5469b788 2281 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
2282 case MKTAG('s','k','i','p'):
2283 case MKTAG('u','u','i','d'):
2284 case MKTAG('p','r','f','l'):
fead30d4 2285 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
2286 /* if we only find those cause probedata is too small at least rate them */
2287 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
2288 break;
2289 default:
2290 /* unrecognized tag */
2497479f 2291 return score;
0e7eed09 2292 }
3ffe3793 2293 }
2497479f 2294 return score;
c9a65ca8
FB
2295}
2296
7221579b
DC
2297// must be done after parsing all trak because there's no order requirement
2298static void mov_read_chapters(AVFormatContext *s)
2299{
2300 MOVContext *mov = s->priv_data;
2301 AVStream *st = NULL;
2302 MOVStreamContext *sc;
2303 int64_t cur_pos;
2304 uint8_t *title = NULL;
2305 int i, len, i8, i16;
2306
2307 for (i = 0; i < s->nb_streams; i++)
2308 if (s->streams[i]->id == mov->chapter_track) {
2309 st = s->streams[i];
2310 break;
2311 }
2312 if (!st) {
2313 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
2314 return;
2315 }
2316
2317 st->discard = AVDISCARD_ALL;
2318 sc = st->priv_data;
2319 cur_pos = url_ftell(sc->pb);
2320
2321 for (i = 0; i < st->nb_index_entries; i++) {
2322 AVIndexEntry *sample = &st->index_entries[i];
2323 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
2324
2325 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
2326 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
2327 goto finish;
2328 }
2329
2330 title = av_malloc(sample->size+2);
2331 get_buffer(sc->pb, title, sample->size);
2332
2333 // the first two bytes are the length of the title
2334 len = AV_RB16(title);
2335 if (len > sample->size-2)
2336 continue;
2337
2338 // The samples could theoretically be in any encoding if there's an encd
2339 // atom following, but in practice are only utf-8 or utf-16, distinguished
2340 // instead by the presence of a BOM
2341 if (AV_RB16(title+2) == 0xfeff) {
2342 uint8_t *utf8 = av_malloc(2*len+3);
2343
2344 i8 = i16 = 0;
2345 while (i16 < len) {
2346 uint32_t ch;
2347 uint8_t tmp;
2348 GET_UTF16(ch, i16 < len ? AV_RB16(title + (i16+=2)) : 0, break;)
2349 PUT_UTF8(ch, tmp, if (i8 < 2*len) utf8[2+i8++] = tmp;)
2350 }
2351 utf8[2+i8] = 0;
2352 av_freep(&title);
2353 title = utf8;
2354 }
2355
2356 ff_new_chapter(s, i, st->time_base, sample->timestamp, end, title+2);
2357 av_freep(&title);
2358 }
2359finish:
2360 av_free(title);
2361 url_fseek(sc->pb, cur_pos, SEEK_SET);
2362}
2363
a266644f 2364static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 2365{
e4141433 2366 MOVContext *mov = s->priv_data;
899681cd 2367 ByteIOContext *pb = s->pb;
f9900374 2368 int err;
3491866a 2369 MOVAtom atom = { AV_RL32("root") };
6cea494e 2370
6cea494e 2371 mov->fc = s;
117a9190
BC
2372 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
2373 if(!url_is_streamed(pb))
bb270c08 2374 atom.size = url_fsize(pb);
6cea494e 2375 else
fa22ca22 2376 atom.size = INT64_MAX;
6cea494e 2377
6cea494e 2378 /* check MOV header */
612b5cbb
BC
2379 if ((err = mov_read_default(mov, pb, atom)) < 0) {
2380 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
2381 return err;
2382 }
2383 if (!mov->found_moov) {
2384 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 2385 return -1;
6cea494e 2386 }
0265fe81 2387 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 2388
7221579b
DC
2389 if (!url_is_streamed(pb) && mov->chapter_track > 0)
2390 mov_read_chapters(s);
2391
6cea494e
ZK
2392 return 0;
2393}
2394
5dc5c43b 2395static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
6cea494e 2396{
5dc5c43b 2397 AVIndexEntry *sample = NULL;
86d8602f 2398 int64_t best_dts = INT64_MAX;
5dc5c43b 2399 int i;
11f16b66 2400 for (i = 0; i < s->nb_streams; i++) {
69fc436c
RD
2401 AVStream *avst = s->streams[i];
2402 MOVStreamContext *msc = avst->priv_data;
3fe4d5d4 2403 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
69fc436c 2404 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
bbe46bc4 2405 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
1c02d96f 2406 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
2407 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
2408 (!url_is_streamed(s->pb) &&
221e21b7 2409 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 2410 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 2411 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
2412 sample = current_sample;
2413 best_dts = dts;
5dc5c43b 2414 *st = avst;
86d8602f 2415 }
6cea494e 2416 }
6cea494e 2417 }
5dc5c43b
RD
2418 return sample;
2419}
2420
2421static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
2422{
2423 MOVContext *mov = s->priv_data;
2424 MOVStreamContext *sc;
2425 AVIndexEntry *sample;
2426 AVStream *st = NULL;
2427 int ret;
2428 retry:
2429 sample = mov_find_next_sample(s, &st);
433aeb62
BC
2430 if (!sample) {
2431 mov->found_mdat = 0;
2432 if (!url_is_streamed(s->pb) ||
3491866a 2433 mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
433aeb62 2434 url_feof(s->pb))
350f2c2c 2435 return AVERROR_EOF;
433aeb62
BC
2436 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
2437 goto retry;
2438 }
69fc436c 2439 sc = st->priv_data;
b72708f8
BC
2440 /* must be done just before reading, to avoid infinite loop on sample */
2441 sc->current_sample++;
3fe4d5d4
RD
2442
2443 if (st->discard != AVDISCARD_ALL) {
e1c1b0ff
RD
2444 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
2445 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
2446 sc->ffindex, sample->pos);
2447 return -1;
2448 }
2449 ret = av_get_packet(sc->pb, pkt, sample->size);
a2f38511
RD
2450 if (ret < 0)
2451 return ret;
e1c1b0ff
RD
2452#if CONFIG_DV_DEMUXER
2453 if (mov->dv_demux && sc->dv_audio_container) {
2454 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
2455 av_free(pkt->data);
2456 pkt->size = 0;
2457 ret = dv_get_packet(mov->dv_demux, pkt);
2458 if (ret < 0)
2459 return ret;
2460 }
312954f0 2461#endif
3fe4d5d4
RD
2462 }
2463
b72708f8
BC
2464 pkt->stream_index = sc->ffindex;
2465 pkt->dts = sample->timestamp;
2466 if (sc->ctts_data) {
bbe46bc4 2467 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
b72708f8 2468 /* update ctts context */
a234e38d
BC
2469 sc->ctts_sample++;
2470 if (sc->ctts_index < sc->ctts_count &&
2471 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
2472 sc->ctts_index++;
2473 sc->ctts_sample = 0;
b565ea09 2474 }
0c5f76f7
BC
2475 if (sc->wrong_dts)
2476 pkt->dts = AV_NOPTS_VALUE;
b72708f8 2477 } else {
f0f2218d 2478 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
e8430214
HG
2479 st->index_entries[sc->current_sample].timestamp : st->duration;
2480 pkt->duration = next_dts - pkt->dts;
b72708f8 2481 pkt->pts = pkt->dts;
b565ea09 2482 }
3fe4d5d4
RD
2483 if (st->discard == AVDISCARD_ALL)
2484 goto retry;
cc947f04 2485 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
b72708f8 2486 pkt->pos = sample->pos;
29c90869
BC
2487 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
2488 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
2489 return 0;
2490}
3ffe3793 2491
e26df9eb 2492static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
b72708f8
BC
2493{
2494 MOVStreamContext *sc = st->priv_data;
2495 int sample, time_sample;
2496 int i;
115329f1 2497
b72708f8 2498 sample = av_index_search_timestamp(st, timestamp, flags);
e26df9eb 2499 dprintf(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
2500 if (sample < 0) /* not sure what to do */
2501 return -1;
2502 sc->current_sample = sample;
e26df9eb 2503 dprintf(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
2504 /* adjust ctts index */
2505 if (sc->ctts_data) {
2506 time_sample = 0;
2507 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
2508 int next = time_sample + sc->ctts_data[i].count;
2509 if (next > sc->current_sample) {
a234e38d
BC
2510 sc->ctts_index = i;
2511 sc->ctts_sample = sc->current_sample - time_sample;
b72708f8 2512 break;
115329f1 2513 }
54a5c719 2514 time_sample = next;
247d56f5 2515 }
247d56f5 2516 }
b72708f8 2517 return sample;
6cea494e
ZK
2518}
2519
961e0ccd 2520static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 2521{
b72708f8
BC
2522 AVStream *st;
2523 int64_t seek_timestamp, timestamp;
2524 int sample;
2525 int i;
baf25c9d 2526
b72708f8 2527 if (stream_index >= s->nb_streams)
baf25c9d 2528 return -1;
8dc81a45
BC
2529 if (sample_time < 0)
2530 sample_time = 0;
baf25c9d 2531
b72708f8 2532 st = s->streams[stream_index];
e26df9eb 2533 sample = mov_seek_stream(s, st, sample_time, flags);
b72708f8 2534 if (sample < 0)
baf25c9d 2535 return -1;
baf25c9d 2536
b72708f8
BC
2537 /* adjust seek timestamp to found sample timestamp */
2538 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 2539
b72708f8
BC
2540 for (i = 0; i < s->nb_streams; i++) {
2541 st = s->streams[i];
3fe4d5d4 2542 if (stream_index == i)
b72708f8 2543 continue;
baf25c9d 2544
b72708f8 2545 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
e26df9eb 2546 mov_seek_stream(s, st, timestamp, flags);
115329f1 2547 }
baf25c9d
GC
2548 return 0;
2549}
baf25c9d 2550
a266644f 2551static int mov_read_close(AVFormatContext *s)
6cea494e 2552{
e4141433 2553 MOVContext *mov = s->priv_data;
6c00a9de
BC
2554 int i, j;
2555
2556 for (i = 0; i < s->nb_streams; i++) {
e49da827
BC
2557 AVStream *st = s->streams[i];
2558 MOVStreamContext *sc = st->priv_data;
6c00a9de 2559
7c622eed 2560 av_freep(&sc->ctts_data);
adeb9071 2561 for (j = 0; j < sc->drefs_count; j++) {
221e21b7 2562 av_freep(&sc->drefs[j].path);
adeb9071
BC
2563 av_freep(&sc->drefs[j].dir);
2564 }
221e21b7
BC
2565 av_freep(&sc->drefs);
2566 if (sc->pb && sc->pb != s->pb)
2567 url_fclose(sc->pb);
e49da827
BC
2568
2569 av_freep(&st->codec->palctrl);
4440b118 2570 }
6c00a9de
BC
2571
2572 if (mov->dv_demux) {
2573 for(i = 0; i < mov->dv_fctx->nb_streams; i++) {
b60c0454
BC
2574 av_freep(&mov->dv_fctx->streams[i]->codec);
2575 av_freep(&mov->dv_fctx->streams[i]);
2576 }
2577 av_freep(&mov->dv_fctx);
2578 av_freep(&mov->dv_demux);
2579 }
6c00a9de 2580
61aedb0f 2581 av_freep(&mov->trex_data);
6c00a9de 2582
6cea494e
ZK
2583 return 0;
2584}
2585
ff70e601 2586AVInputFormat mov_demuxer = {
fc5188f3 2587 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 2588 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
2589 sizeof(MOVContext),
2590 mov_probe,
6cea494e
ZK
2591 mov_read_header,
2592 mov_read_packet,
2593 mov_read_close,
baf25c9d 2594 mov_read_seek,
6cea494e 2595};