move specific end treatment when trak is detected, will be needed for fragments
[libav.git] / libavformat / mov.c
CommitLineData
6cea494e 1/*
7fbde343 2 * MOV demuxer
19720f15 3 * Copyright (c) 2001 Fabrice Bellard.
6cea494e 4 *
b78e7197
DB
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
6cea494e 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
6cea494e 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
6cea494e 16 *
19720f15 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6cea494e 20 */
d957696f
MN
21
22#include <limits.h>
115329f1 23
bfc2a19d 24//#define DEBUG
4e5ef14f 25
6cea494e 26#include "avformat.h"
9d9f4119 27#include "riff.h"
e40ee6a2 28#include "isom.h"
b60c0454 29#include "dv.h"
6cea494e 30
0147f198
FR
31#ifdef CONFIG_ZLIB
32#include <zlib.h>
33#endif
34
6cea494e
ZK
35/*
36 * First version by Francois Revol revol@free.fr
115329f1 37 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 38 *
6cea494e 39 * Features and limitations:
5ca1d879 40 * - reads most of the QT files I have (at least the structure),
6cea494e 41 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 42 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 43 *
6cea494e
ZK
44 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
45 * when coding this :) (it's a writer anyway)
5ca1d879 46 *
6cea494e
ZK
47 * Reference documents:
48 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
49 * Apple:
baf25c9d 50 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 51 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
52 * QuickTime is a trademark of Apple (AFAIK :))
53 */
54
b595afaa
MM
55#include "qtpalette.h"
56
baf25c9d 57
cd7352d5
MN
58#undef NDEBUG
59#include <assert.h>
60
6cea494e
ZK
61/* the QuickTime file format is quite convoluted...
62 * it has lots of index tables, each indexing something in another one...
63 * Here we just use what is needed to read the chunks
64 */
65
e23848a4 66typedef struct {
1c02d96f
BC
67 int first;
68 int count;
69 int id;
e23848a4 70} MOV_stsc_t;
6cea494e 71
5cd62665 72typedef struct {
5ca1d879 73 uint32_t type;
221e21b7
BC
74 char *path;
75} MOV_dref_t;
76
77typedef struct {
78 uint32_t type;
5ca1d879
ZK
79 int64_t offset;
80 int64_t size; /* total size (excluding the size and type fields) */
81} MOV_atom_t;
82
b6a17df4
ZK
83struct MOVParseTableEntry;
84
6cea494e 85typedef struct MOVStreamContext {
221e21b7 86 ByteIOContext *pb;
6cea494e 87 int ffindex; /* the ffmpeg stream id */
1c02d96f 88 int next_chunk;
44d3fea5 89 unsigned int chunk_count;
0c1a9eda 90 int64_t *chunk_offsets;
44d3fea5 91 unsigned int stts_count;
e23848a4 92 MOV_stts_t *stts_data;
44d3fea5 93 unsigned int ctts_count;
e23848a4 94 MOV_stts_t *ctts_data;
44d3fea5
BC
95 unsigned int edit_count; /* number of 'edit' (elst atom) */
96 unsigned int sample_to_chunk_sz;
e23848a4 97 MOV_stsc_t *sample_to_chunk;
c4ac052b
MN
98 int sample_to_ctime_index;
99 int sample_to_ctime_sample;
44d3fea5
BC
100 unsigned int sample_size;
101 unsigned int sample_count;
1c02d96f 102 int *sample_sizes;
44d3fea5 103 unsigned int keyframe_count;
1c02d96f 104 int *keyframes;
5cd62665 105 int time_scale;
cd7352d5 106 int time_rate;
1c02d96f 107 int current_sample;
e14f79ed
BC
108 unsigned int bytes_per_frame;
109 unsigned int samples_per_frame;
b60c0454 110 int dv_audio_container;
ee6e2dbe 111 int pseudo_stream_id;
77c75437 112 int16_t audio_cid; ///< stsd audio compression id
221e21b7
BC
113 unsigned drefs_count;
114 MOV_dref_t *drefs;
115 int dref_id;
6cea494e
ZK
116} MOVStreamContext;
117
118typedef struct MOVContext {
6cea494e 119 AVFormatContext *fc;
5cd62665 120 int time_scale;
7e815047 121 int64_t duration; /* duration of the longest track */
6cea494e
ZK
122 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
123 int found_mdat; /* we suppose we have enough data to read the file */
b595afaa 124 AVPaletteControl palette_control;
b60c0454
BC
125 DVDemuxContext *dv_demux;
126 AVFormatContext *dv_fctx;
152e9a43 127 int isom; /* 1 if file is ISO Media (mp4/3gp) */
6cea494e
ZK
128} MOVContext;
129
130
6cea494e
ZK
131/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
132
133/* those functions parse an atom */
134/* return code:
135 1: found what I wanted, exit
136 0: continue to parse next atom
137 -1: error occured, exit
138 */
6cea494e
ZK
139/* links atom IDs to parse functions */
140typedef struct MOVParseTableEntry {
0c1a9eda 141 uint32_t type;
03dc32f6 142 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
6cea494e
ZK
143} MOVParseTableEntry;
144
73d07c27
BC
145static const MOVParseTableEntry mov_default_parse_table[];
146
5ca1d879 147static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 148{
b6a17df4 149 int64_t total_size = 0;
5ca1d879 150 MOV_atom_t a;
6cea494e
ZK
151 int i;
152 int err = 0;
5ca1d879 153
5ca1d879 154 a.offset = atom.offset;
6cea494e 155
9ed83b0a 156 if (atom.size < 0)
fa22ca22 157 atom.size = INT64_MAX;
5ca1d879 158 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
bb270c08 159 a.size = atom.size;
bcfe2ba0 160 a.type=0;
5ca1d879 161 if(atom.size >= 8) {
bb270c08 162 a.size = get_be32(pb);
5ca1d879 163 a.type = get_le32(pb);
6cea494e 164 }
bb270c08 165 total_size += 8;
5ca1d879 166 a.offset += 8;
29c90869
BC
167 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
168 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 169 if (a.size == 1) { /* 64 bit extended size */
bb270c08 170 a.size = get_be64(pb) - 8;
5ca1d879
ZK
171 a.offset += 8;
172 total_size += 8;
6cea494e 173 }
bb270c08
DB
174 if (a.size == 0) {
175 a.size = atom.size - total_size;
176 if (a.size <= 8)
5cd62665 177 break;
bb270c08 178 }
bb270c08 179 a.size -= 8;
8622613d 180 if(a.size < 0)
568e18b1 181 break;
3d2308b0 182 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 183
bcfe2ba0 184 for (i = 0; mov_default_parse_table[i].type != 0
73d07c27 185 && mov_default_parse_table[i].type != a.type; i++)
11979c46
BC
186 /* empty */;
187
73d07c27 188 if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
5ca1d879 189 url_fskip(pb, a.size);
bb270c08 190 } else {
5c72cad8
BC
191 offset_t start_pos = url_ftell(pb);
192 int64_t left;
03dc32f6 193 err = mov_default_parse_table[i].parse(c, pb, a);
687f35f3
BC
194 if (c->found_moov && c->found_mdat)
195 break;
5c72cad8
BC
196 left = a.size - url_ftell(pb) + start_pos;
197 if (left > 0) /* skip garbage at atom end */
198 url_fskip(pb, left);
bb270c08 199 }
6cea494e 200
bb270c08 201 a.offset += a.size;
5ca1d879 202 total_size += a.size;
6cea494e
ZK
203 }
204
5ca1d879 205 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
5ca1d879 206 url_fskip(pb, atom.size - total_size);
5cd62665
ZK
207 }
208
6cea494e
ZK
209 return err;
210}
211
221e21b7
BC
212static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
213{
214 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
215 MOVStreamContext *sc = st->priv_data;
216 int entries, i, j;
217
218 get_be32(pb); // version + flags
219 entries = get_be32(pb);
220 if (entries >= UINT_MAX / sizeof(*sc->drefs))
221 return -1;
222 sc->drefs_count = entries;
223 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
224
225 for (i = 0; i < sc->drefs_count; i++) {
226 MOV_dref_t *dref = &sc->drefs[i];
227 uint32_t size = get_be32(pb);
228 offset_t next = url_ftell(pb) + size - 4;
229
230 dref->type = get_le32(pb);
231 get_be32(pb); // version + flags
232 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
233
234 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
235 /* macintosh alias record */
236 uint16_t volume_len, len;
237 char volume[28];
238 int16_t type;
239
240 url_fskip(pb, 10);
241
242 volume_len = get_byte(pb);
243 volume_len = FFMIN(volume_len, 27);
244 get_buffer(pb, volume, 27);
245 volume[volume_len] = 0;
246 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
247
248 url_fskip(pb, 112);
249
250 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
251 type = get_be16(pb);
252 len = get_be16(pb);
253 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
254 if (len&1)
255 len += 1;
256 if (type == 2) { // absolute path
dbb37657 257 av_free(dref->path);
221e21b7 258 dref->path = av_mallocz(len+1);
2f4568e5
BC
259 if (!dref->path)
260 return AVERROR(ENOMEM);
221e21b7 261 get_buffer(pb, dref->path, len);
dbb7cbf2 262 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
263 len -= volume_len;
264 memmove(dref->path, dref->path+volume_len, len);
265 dref->path[len] = 0;
266 }
267 for (j = 0; j < len; j++)
268 if (dref->path[j] == ':')
269 dref->path[j] = '/';
270 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
271 } else
272 url_fskip(pb, len);
273 }
274 }
275 url_fseek(pb, next, SEEK_SET);
276 }
277 return 0;
278}
279
5ca1d879 280static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 281{
5ca1d879 282 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
0c1a9eda 283 uint32_t type;
0c1a9eda 284 uint32_t ctype;
b6a17df4 285
6cea494e 286 get_byte(pb); /* version */
23f08617 287 get_be24(pb); /* flags */
6cea494e
ZK
288
289 /* component type */
290 ctype = get_le32(pb);
291 type = get_le32(pb); /* component subtype */
292
29c90869
BC
293 dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
294 ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
295 dprintf(c->fc, "stype= %c%c%c%c\n",
296 *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
152e9a43
BC
297 if(!ctype)
298 c->isom = 1;
73920f07
BC
299 if(type == MKTAG('v', 'i', 'd', 'e'))
300 st->codec->codec_type = CODEC_TYPE_VIDEO;
301 else if(type == MKTAG('s', 'o', 'u', 'n'))
302 st->codec->codec_type = CODEC_TYPE_AUDIO;
95a07973
BC
303 else if(type == MKTAG('m', '1', 'a', ' '))
304 st->codec->codec_id = CODEC_ID_MP2;
8cb97693
BC
305 else if(type == MKTAG('s', 'u', 'b', 'p')) {
306 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
8cb97693 307 }
6cea494e
ZK
308 get_be32(pb); /* component manufacture */
309 get_be32(pb); /* component flags */
310 get_be32(pb); /* component flags mask */
311
5ca1d879 312 if(atom.size <= 24)
6cea494e 313 return 0; /* nothing left to read */
5cd62665 314
3c13647a 315 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
316 return 0;
317}
318
9e40addd 319static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 320{
5cd62665 321 int len = 0;
5ca1d879
ZK
322 int count = 4;
323 while (count--) {
5cd62665 324 int c = get_byte(pb);
bb270c08
DB
325 len = (len << 7) | (c & 0x7f);
326 if (!(c & 0x80))
327 break;
0e7eed09
FB
328 }
329 return len;
330}
331
9e40addd 332static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
333{
334 int len;
335 *tag = get_byte(pb);
9e40addd 336 len = mp4_read_descr_len(pb);
318c5e05 337 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
338 return len;
339}
340
0b07ac42
BC
341#define MP4ESDescrTag 0x03
342#define MP4DecConfigDescrTag 0x04
343#define MP4DecSpecificDescrTag 0x05
344
5ca1d879 345static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
5cd62665 346{
5cd62665 347 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 348 int tag, len;
b6a17df4 349
5cd62665 350 get_be32(pb); /* version + flags */
9e40addd 351 len = mp4_read_descr(c, pb, &tag);
5cd62665 352 if (tag == MP4ESDescrTag) {
bb270c08
DB
353 get_be16(pb); /* ID */
354 get_byte(pb); /* priority */
5cd62665 355 } else
bb270c08 356 get_be16(pb); /* ID */
5cd62665 357
9e40addd 358 len = mp4_read_descr(c, pb, &tag);
5cd62665 359 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
360 int object_type_id = get_byte(pb);
361 get_byte(pb); /* stream type */
362 get_be24(pb); /* buffer size db */
363 get_be32(pb); /* max bitrate */
364 get_be32(pb); /* avg bitrate */
365
366 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
367 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 368 len = mp4_read_descr(c, pb, &tag);
bb270c08 369 if (tag == MP4DecSpecificDescrTag) {
318c5e05 370 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
371 if((uint64_t)len > (1<<30))
372 return -1;
9a630c25 373 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
374 if (!st->codec->extradata)
375 return AVERROR(ENOMEM);
17871a02
BC
376 get_buffer(pb, st->codec->extradata, len);
377 st->codec->extradata_size = len;
378 /* from mplayer */
379 if ((*st->codec->extradata >> 3) == 29) {
380 st->codec->codec_id = CODEC_ID_MP3ON4;
381 }
bb270c08 382 }
5cd62665 383 }
5cd62665
ZK
384 return 0;
385}
386
5ca1d879
ZK
387/* this atom contains actual media data */
388static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 389{
5ca1d879
ZK
390 if(atom.size == 0) /* wrong one (MP4) */
391 return 0;
392 c->found_mdat=1;
5ca1d879
ZK
393 if(c->found_moov)
394 return 1; /* found both, just go */
395 url_fskip(pb, atom.size);
396 return 0; /* now go for moov */
397}
398
4ea28253
BC
399static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
400{
401 uint32_t type = get_le32(pb);
402
152e9a43
BC
403 if (type != MKTAG('q','t',' ',' '))
404 c->isom = 1;
a512446e 405 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
406 get_be32(pb); /* minor version */
407 url_fskip(pb, atom.size - 8);
408 return 0;
409}
410
5ca1d879
ZK
411/* this atom should contain all header atoms */
412static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
413{
9cf0419b
PI
414 if (mov_read_default(c, pb, atom) < 0)
415 return -1;
5ca1d879
ZK
416 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
417 /* so we don't parse the whole file if over a network */
418 c->found_moov=1;
419 if(c->found_mdat)
420 return 1; /* found both, just go */
421 return 0; /* now go for mdat */
422}
423
424
425static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
426{
f444b977 427 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 428 MOVStreamContext *sc = st->priv_data;
f444b977 429 int version = get_byte(pb);
b9a87c4d 430 int lang;
5ca1d879 431
b9a87c4d
FR
432 if (version > 1)
433 return 1; /* unsupported */
5ca1d879 434
23f08617 435 get_be24(pb); /* flags */
f444b977
BC
436 if (version == 1) {
437 get_be64(pb);
438 get_be64(pb);
439 } else {
440 get_be32(pb); /* creation time */
441 get_be32(pb); /* modification time */
442 }
5ca1d879 443
f444b977
BC
444 sc->time_scale = get_be32(pb);
445 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 446
b9a87c4d 447 lang = get_be16(pb); /* language */
f444b977 448 ff_mov_lang_to_iso639(lang, st->language);
5ca1d879
ZK
449 get_be16(pb); /* quality */
450
451 return 0;
452}
453
454static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
455{
1175561e 456 int version = get_byte(pb); /* version */
23f08617 457 get_be24(pb); /* flags */
5ca1d879 458
1175561e
BC
459 if (version == 1) {
460 get_be64(pb);
461 get_be64(pb);
462 } else {
463 get_be32(pb); /* creation time */
464 get_be32(pb); /* modification time */
465 }
5ca1d879 466 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
467
468 dprintf(c->fc, "time scale = %i\n", c->time_scale);
469
1175561e 470 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
471 get_be32(pb); /* preferred scale */
472
473 get_be16(pb); /* preferred volume */
474
475 url_fskip(pb, 10); /* reserved */
476
477 url_fskip(pb, 36); /* display matrix */
478
479 get_be32(pb); /* preview time */
480 get_be32(pb); /* preview duration */
481 get_be32(pb); /* poster time */
482 get_be32(pb); /* selection time */
483 get_be32(pb); /* selection duration */
484 get_be32(pb); /* current time */
485 get_be32(pb); /* next track ID */
486
487 return 0;
488}
489
9ed83b0a
ZK
490static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
491{
492 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
493
568e18b1
MN
494 if((uint64_t)atom.size > (1<<30))
495 return -1;
115329f1 496
9ed83b0a
ZK
497 // currently SVQ3 decoder expect full STSD header - so let's fake it
498 // this should be fixed and just SMI header should be passed
01f4895c 499 av_free(st->codec->extradata);
b014dd76
BC
500 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
501 if (!st->codec->extradata)
502 return AVERROR(ENOMEM);
17871a02
BC
503 st->codec->extradata_size = 0x5a + atom.size;
504 memcpy(st->codec->extradata, "SVQ3", 4); // fake
505 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
506 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
507 return 0;
508}
5ca1d879 509
de23f234
BC
510static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
511{
512 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
513 int little_endian = get_be16(pb);
514
515 if (little_endian) {
516 switch (st->codec->codec_id) {
517 case CODEC_ID_PCM_S24BE:
518 st->codec->codec_id = CODEC_ID_PCM_S24LE;
519 break;
520 case CODEC_ID_PCM_S32BE:
521 st->codec->codec_id = CODEC_ID_PCM_S32LE;
522 break;
523 default:
524 break;
525 }
526 }
527 return 0;
528}
529
014a5102
BC
530/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
531static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
de23f234
BC
532{
533 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
68bc33fa
BC
534 uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
535 uint8_t *buf;
536 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 537 return -1;
68bc33fa
BC
538 buf= av_realloc(st->codec->extradata, size);
539 if(!buf)
540 return -1;
541 st->codec->extradata= buf;
542 buf+= st->codec->extradata_size;
543 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
544 AV_WB32( buf , atom.size + 8);
545 AV_WL32( buf + 4, atom.type);
546 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
547 return 0;
548}
549
d9b1c197
RT
550static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
551{
552 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
553
554 if((uint64_t)atom.size > (1<<30))
555 return -1;
115329f1 556
3840147e
MN
557 if (st->codec->codec_id == CODEC_ID_QDM2) {
558 // pass all frma atom to codec, needed at least for QDM2
559 av_free(st->codec->extradata);
b014dd76
BC
560 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
561 if (!st->codec->extradata)
562 return AVERROR(ENOMEM);
3840147e 563 st->codec->extradata_size = atom.size;
b014dd76 564 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 565 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
566 if (mov_read_default(c, pb, atom) < 0)
567 return -1;
5c72cad8 568 } else
bb270c08 569 url_fskip(pb, atom.size);
d9b1c197
RT
570 return 0;
571}
572
bde24601
BC
573/**
574 * This function reads atom content and puts data in extradata without tag
575 * nor size unlike mov_read_extradata.
576 */
577static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
169eb021
MM
578{
579 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
580
568e18b1
MN
581 if((uint64_t)atom.size > (1<<30))
582 return -1;
583
01f4895c 584 av_free(st->codec->extradata);
b014dd76
BC
585 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
586 if (!st->codec->extradata)
587 return AVERROR(ENOMEM);
01f4895c 588 st->codec->extradata_size = atom.size;
b014dd76 589 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
590 return 0;
591}
592
5ca1d879
ZK
593static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
594{
595 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 596 MOVStreamContext *sc = st->priv_data;
568e18b1 597 unsigned int i, entries;
5ca1d879 598
5ca1d879 599 get_byte(pb); /* version */
23f08617 600 get_be24(pb); /* flags */
5ca1d879
ZK
601
602 entries = get_be32(pb);
115329f1 603
568e18b1
MN
604 if(entries >= UINT_MAX/sizeof(int64_t))
605 return -1;
115329f1 606
5ca1d879 607 sc->chunk_count = entries;
9a630c25 608 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879
ZK
609 if (!sc->chunk_offsets)
610 return -1;
611 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
612 for(i=0; i<entries; i++) {
613 sc->chunk_offsets[i] = get_be32(pb);
614 }
615 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
616 for(i=0; i<entries; i++) {
617 sc->chunk_offsets[i] = get_be64(pb);
618 }
619 } else
620 return -1;
115329f1 621
5ca1d879
ZK
622 return 0;
623}
624
625static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
626{
627 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 628 MOVStreamContext *sc = st->priv_data;
5ca1d879
ZK
629 int entries, frames_per_sample;
630 uint32_t format;
53ffdd14 631 uint8_t codec_name[32];
5ca1d879 632
b595afaa 633 /* for palette traversal */
8b35bd80
MM
634 unsigned int color_depth;
635 unsigned int color_start;
636 unsigned int color_count;
637 unsigned int color_end;
b595afaa
MM
638 int color_index;
639 int color_dec;
640 int color_greyscale;
1fe47470 641 const uint8_t *color_table;
ee6e2dbe 642 int j, pseudo_stream_id;
b595afaa
MM
643 unsigned char r, g, b;
644
6cea494e 645 get_byte(pb); /* version */
23f08617 646 get_be24(pb); /* flags */
6cea494e 647
6cea494e
ZK
648 entries = get_be32(pb);
649
ee6e2dbe 650 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) { //Parsing Sample description table
b6a17df4 651 enum CodecID id;
221e21b7 652 int dref_id;
de23f234 653 MOV_atom_t a = { 0, 0, 0 };
3840147e 654 offset_t start_pos = url_ftell(pb);
bb270c08 655 int size = get_be32(pb); /* size */
6cea494e 656 format = get_le32(pb); /* data format */
5cd62665 657
6cea494e
ZK
658 get_be32(pb); /* reserved */
659 get_be16(pb); /* reserved */
221e21b7 660 dref_id = get_be16(pb);
0e7eed09 661
744a9c75
MN
662 if (st->codec->codec_tag &&
663 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
664 : st->codec->codec_tag != MKTAG('j', 'p', 'e', 'g'))
665 ){
7ce68923
DB
666 /* Multiple fourcc, we skip JPEG. This is not correct, we should
667 * export it as a separate AVStream but this needs a few changes
668 * in the MOV demuxer, patch welcome. */
e7cc4b52
BC
669 url_fskip(pb, size - (url_ftell(pb) - start_pos));
670 continue;
671 }
ee6e2dbe 672 sc->pseudo_stream_id= pseudo_stream_id;
221e21b7 673 sc->dref_id= dref_id;
e7cc4b52 674
bb270c08 675 st->codec->codec_tag = format;
1e5f5e3b 676 id = codec_get_id(codec_movaudio_tags, format);
bca7db35
MN
677 if (id<=0 && (format&0xFFFF) == 'm' + ('s'<<8))
678 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
679
48855b26 680 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 681 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26
BC
682 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
683 format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
1e5f5e3b 684 id = codec_get_id(codec_movvideo_tags, format);
99487f42 685 if (id <= 0)
de23f234 686 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
687 if (id > 0)
688 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
689 else if(st->codec->codec_type == CODEC_TYPE_DATA){
690 id = codec_get_id(ff_codec_movsubtitle_tags, format);
691 if(id > 0)
692 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
693 }
99487f42
BC
694 }
695
29c90869
BC
696 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
697 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
698 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 699
99487f42 700 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
01f4895c 701 st->codec->codec_id = id;
6cea494e
ZK
702 get_be16(pb); /* version */
703 get_be16(pb); /* revision level */
704 get_be32(pb); /* vendor */
705 get_be32(pb); /* temporal quality */
94472c1d 706 get_be32(pb); /* spatial quality */
3cb4ee51
BC
707
708 st->codec->width = get_be16(pb); /* width */
709 st->codec->height = get_be16(pb); /* height */
710
6cea494e
ZK
711 get_be32(pb); /* horiz resolution */
712 get_be32(pb); /* vert resolution */
713 get_be32(pb); /* data size, always 0 */
5cd62665 714 frames_per_sample = get_be16(pb); /* frames per samples */
f8c18cd7
BC
715
716 dprintf(c->fc, "frames/samples = %d\n", frames_per_sample);
717
576f1445
BC
718 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
719 if (codec_name[0] <= 31) {
720 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
721 st->codec->codec_name[codec_name[0]] = 0;
722 }
5cd62665 723
bb270c08 724 st->codec->bits_per_sample = get_be16(pb); /* depth */
01f4895c 725 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f
BC
726 dprintf(c->fc, "depth %d, ctab id %d\n",
727 st->codec->bits_per_sample, st->codec->color_table_id);
b595afaa 728 /* figure out the palette situation */
01f4895c
MN
729 color_depth = st->codec->bits_per_sample & 0x1F;
730 color_greyscale = st->codec->bits_per_sample & 0x20;
b595afaa
MM
731
732 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 733 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 734 (color_depth == 8)) {
b595afaa 735 if (color_greyscale) {
b595afaa 736 /* compute the greyscale palette */
0de2157f 737 st->codec->bits_per_sample = color_depth;
b595afaa
MM
738 color_count = 1 << color_depth;
739 color_index = 255;
740 color_dec = 256 / (color_count - 1);
741 for (j = 0; j < color_count; j++) {
742 r = g = b = color_index;
743 c->palette_control.palette[j] =
744 (r << 16) | (g << 8) | (b);
745 color_index -= color_dec;
746 if (color_index < 0)
747 color_index = 0;
748 }
01f4895c 749 } else if (st->codec->color_table_id & 0x08) {
b595afaa
MM
750 /* if flag bit 3 is set, use the default palette */
751 color_count = 1 << color_depth;
752 if (color_depth == 2)
a90466f7 753 color_table = ff_qt_default_palette_4;
b595afaa 754 else if (color_depth == 4)
a90466f7 755 color_table = ff_qt_default_palette_16;
b595afaa 756 else
a90466f7 757 color_table = ff_qt_default_palette_256;
b595afaa
MM
758
759 for (j = 0; j < color_count; j++) {
760 r = color_table[j * 4 + 0];
761 g = color_table[j * 4 + 1];
762 b = color_table[j * 4 + 2];
763 c->palette_control.palette[j] =
764 (r << 16) | (g << 8) | (b);
765 }
b595afaa 766 } else {
b595afaa
MM
767 /* load the palette from the file */
768 color_start = get_be32(pb);
769 color_count = get_be16(pb);
770 color_end = get_be16(pb);
8b35bd80
MM
771 if ((color_start <= 255) &&
772 (color_end <= 255)) {
9de2919c
MM
773 for (j = color_start; j <= color_end; j++) {
774 /* each R, G, or B component is 16 bits;
775 * only use the top 8 bits; skip alpha bytes
776 * up front */
777 get_byte(pb);
778 get_byte(pb);
779 r = get_byte(pb);
780 get_byte(pb);
781 g = get_byte(pb);
782 get_byte(pb);
783 b = get_byte(pb);
784 get_byte(pb);
785 c->palette_control.palette[j] =
786 (r << 16) | (g << 8) | (b);
8b35bd80 787 }
b595afaa
MM
788 }
789 }
01f4895c
MN
790 st->codec->palctrl = &c->palette_control;
791 st->codec->palctrl->palette_changed = 1;
b595afaa 792 } else
01f4895c 793 st->codec->palctrl = NULL;
de23f234 794 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
b72708f8 795 int bits_per_sample;
de23f234 796 uint16_t version = get_be16(pb);
b595afaa 797
99487f42 798 st->codec->codec_id = id;
de23f234
BC
799 get_be16(pb); /* revision level */
800 get_be32(pb); /* vendor */
6d6d7970 801
de23f234 802 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 803 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
de23f234 804 st->codec->bits_per_sample = get_be16(pb); /* sample size */
de23f234 805
77c75437 806 sc->audio_cid = get_be16(pb);
de23f234
BC
807 get_be16(pb); /* packet size = 0 */
808
809 st->codec->sample_rate = ((get_be32(pb) >> 16));
810
811 switch (st->codec->codec_id) {
b72708f8
BC
812 case CODEC_ID_PCM_S8:
813 case CODEC_ID_PCM_U8:
814 if (st->codec->bits_per_sample == 16)
815 st->codec->codec_id = CODEC_ID_PCM_S16BE;
816 break;
0dd39bfe 817 case CODEC_ID_PCM_S16LE:
de23f234
BC
818 case CODEC_ID_PCM_S16BE:
819 if (st->codec->bits_per_sample == 8)
820 st->codec->codec_id = CODEC_ID_PCM_S8;
0299a87c
BC
821 else if (st->codec->bits_per_sample == 24)
822 st->codec->codec_id = CODEC_ID_PCM_S24BE;
de23f234 823 break;
53152765
BC
824 /* set values for old format before stsd version 1 appeared */
825 case CODEC_ID_MACE3:
826 sc->samples_per_frame = 6;
827 sc->bytes_per_frame = 2*st->codec->channels;
828 break;
829 case CODEC_ID_MACE6:
830 sc->samples_per_frame = 6;
831 sc->bytes_per_frame = 1*st->codec->channels;
832 break;
833 case CODEC_ID_ADPCM_IMA_QT:
834 sc->samples_per_frame = 64;
835 sc->bytes_per_frame = 34*st->codec->channels;
836 break;
de23f234
BC
837 default:
838 break;
6d6d7970 839 }
14342fd5 840
755bfeab 841 //Read QT version 1 fields. In version 0 these do not exist.
318c5e05 842 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
152e9a43 843 if(!c->isom) {
80c5b9a1 844 if(version==1) {
e14f79ed 845 sc->samples_per_frame = get_be32(pb);
80c5b9a1 846 get_be32(pb); /* bytes per packet */
e14f79ed 847 sc->bytes_per_frame = get_be32(pb);
80c5b9a1
BC
848 get_be32(pb); /* bytes per sample */
849 } else if(version==2) {
850 get_be32(pb); /* sizeof struct only */
851 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
852 st->codec->channels = get_be32(pb);
853 get_be32(pb); /* always 0x7F000000 */
854 get_be32(pb); /* bits per channel if sound is uncompressed */
855 get_be32(pb); /* lcpm format specific flag */
856 get_be32(pb); /* bytes per audio packet if constant */
857 get_be32(pb); /* lpcm frames per audio packet if constant */
858 }
152e9a43 859 }
9770089d
BC
860
861 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
862 if (bits_per_sample) {
863 st->codec->bits_per_sample = bits_per_sample;
864 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
865 }
cc8d87b7
MN
866 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
867 st->codec->codec_id= id;
de23f234
BC
868 } else {
869 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
870 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 871 }
de23f234
BC
872 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
873 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
874 if (a.size > 8) {
875 if (mov_read_default(c, pb, a) < 0)
876 return -1;
877 } else if (a.size > 0)
de23f234 878 url_fskip(pb, a.size);
6cea494e 879 }
115329f1 880
60f5c96e 881 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 882 st->codec->sample_rate= sc->time_scale;
e31bd3e3 883
d00f8e17 884 /* special codec parameters handling */
e31bd3e3 885 switch (st->codec->codec_id) {
989ac5a6 886#ifdef CONFIG_DV_DEMUXER
b60c0454
BC
887 case CODEC_ID_DVAUDIO:
888 c->dv_fctx = av_alloc_format_context();
889 c->dv_demux = dv_init_demux(c->dv_fctx);
890 if (!c->dv_demux) {
891 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
892 return -1;
893 }
894 sc->dv_audio_container = 1;
895 st->codec->codec_id = CODEC_ID_PCM_S16LE;
896 break;
989ac5a6 897#endif
b95319a2
BC
898 /* no ifdef since parameters are always those */
899 case CODEC_ID_AMR_WB:
900 st->codec->sample_rate= 16000;
901 st->codec->channels= 1; /* really needed */
902 break;
903 case CODEC_ID_AMR_NB:
904 st->codec->sample_rate= 8000;
905 st->codec->channels= 1; /* really needed */
906 break;
a41104f8 907 case CODEC_ID_MP2:
c59f24e6 908 case CODEC_ID_MP3:
95a07973 909 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 910 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 911 break;
74e9b9ae
BC
912 case CODEC_ID_ADPCM_MS:
913 case CODEC_ID_ADPCM_IMA_WAV:
914 st->codec->block_align = sc->bytes_per_frame;
915 break;
e31bd3e3
BC
916 default:
917 break;
918 }
5cd62665 919
6cea494e
ZK
920 return 0;
921}
922
5ca1d879 923static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 924{
5ca1d879 925 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 926 MOVStreamContext *sc = st->priv_data;
568e18b1 927 unsigned int i, entries;
b6a17df4 928
6cea494e 929 get_byte(pb); /* version */
23f08617 930 get_be24(pb); /* flags */
6cea494e
ZK
931
932 entries = get_be32(pb);
115329f1 933
e23848a4 934 if(entries >= UINT_MAX / sizeof(MOV_stsc_t))
568e18b1 935 return -1;
115329f1 936
f8c18cd7
BC
937 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
938
6cea494e 939 sc->sample_to_chunk_sz = entries;
e23848a4 940 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t));
b6a17df4
ZK
941 if (!sc->sample_to_chunk)
942 return -1;
6cea494e
ZK
943 for(i=0; i<entries; i++) {
944 sc->sample_to_chunk[i].first = get_be32(pb);
945 sc->sample_to_chunk[i].count = get_be32(pb);
946 sc->sample_to_chunk[i].id = get_be32(pb);
6cea494e
ZK
947 }
948 return 0;
949}
950
247d56f5
BB
951static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
952{
953 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 954 MOVStreamContext *sc = st->priv_data;
568e18b1 955 unsigned int i, entries;
247d56f5 956
247d56f5 957 get_byte(pb); /* version */
23f08617 958 get_be24(pb); /* flags */
247d56f5
BB
959
960 entries = get_be32(pb);
115329f1 961
1c02d96f 962 if(entries >= UINT_MAX / sizeof(int))
568e18b1 963 return -1;
115329f1 964
247d56f5 965 sc->keyframe_count = entries;
f8c18cd7
BC
966
967 dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count);
968
1c02d96f 969 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5
BB
970 if (!sc->keyframes)
971 return -1;
972 for(i=0; i<entries; i++) {
973 sc->keyframes[i] = get_be32(pb);
f8c18cd7 974 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
975 }
976 return 0;
977}
978
5ca1d879 979static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 980{
5ca1d879 981 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 982 MOVStreamContext *sc = st->priv_data;
b72708f8 983 unsigned int i, entries, sample_size;
b6a17df4 984
6cea494e 985 get_byte(pb); /* version */
23f08617 986 get_be24(pb); /* flags */
5cd62665 987
b72708f8
BC
988 sample_size = get_be32(pb);
989 if (!sc->sample_size) /* do not overwrite value computed in stsd */
990 sc->sample_size = sample_size;
6cea494e 991 entries = get_be32(pb);
1c02d96f 992 if(entries >= UINT_MAX / sizeof(int))
568e18b1
MN
993 return -1;
994
6cea494e 995 sc->sample_count = entries;
b72708f8
BC
996 if (sample_size)
997 return 0;
998
f8c18cd7
BC
999 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1000
1c02d96f 1001 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4
ZK
1002 if (!sc->sample_sizes)
1003 return -1;
6cea494e
ZK
1004 for(i=0; i<entries; i++) {
1005 sc->sample_sizes[i] = get_be32(pb);
f8c18cd7 1006 dprintf(c->fc, "sample_sizes[]=%d\n", sc->sample_sizes[i]);
6cea494e
ZK
1007 }
1008 return 0;
1009}
1010
5ca1d879 1011static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1012{
5ca1d879 1013 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1014 MOVStreamContext *sc = st->priv_data;
568e18b1 1015 unsigned int i, entries;
d957696f
MN
1016 int64_t duration=0;
1017 int64_t total_sample_count=0;
b6a17df4 1018
0147f198 1019 get_byte(pb); /* version */
23f08617 1020 get_be24(pb); /* flags */
0147f198 1021 entries = get_be32(pb);
e23848a4 1022 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
568e18b1 1023 return -1;
891f64b3 1024
cd7352d5 1025 sc->stts_count = entries;
e23848a4 1026 sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1027 if (!sc->stts_data)
1028 return -1;
f8c18cd7 1029 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
cd7352d5
MN
1030
1031 sc->time_rate=0;
1032
0147f198 1033 for(i=0; i<entries; i++) {
cd461d48
MN
1034 int sample_duration;
1035 int sample_count;
0147f198 1036
891f64b3 1037 sample_count=get_be32(pb);
0147f198 1038 sample_duration = get_be32(pb);
cd7352d5
MN
1039 sc->stts_data[i].count= sample_count;
1040 sc->stts_data[i].duration= sample_duration;
1041
1042 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
961e0ccd 1043
318c5e05 1044 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1045
7e815047 1046 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1047 total_sample_count+=sample_count;
891f64b3 1048 }
1049
961e0ccd
MN
1050 st->nb_frames= total_sample_count;
1051 if(duration)
1052 st->duration= duration;
0147f198
FR
1053 return 0;
1054}
1055
c4ac052b
MN
1056static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1057{
70a61ed4 1058 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1059 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1060 unsigned int i, entries;
1061
c4ac052b 1062 get_byte(pb); /* version */
23f08617 1063 get_be24(pb); /* flags */
c4ac052b 1064 entries = get_be32(pb);
e23848a4 1065 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
c4ac052b
MN
1066 return -1;
1067
70a61ed4 1068 sc->ctts_count = entries;
e23848a4 1069 sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1070 if (!sc->ctts_data)
1071 return -1;
318c5e05 1072 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
4e5ef14f 1073
c4ac052b 1074 for(i=0; i<entries; i++) {
70a61ed4
MN
1075 int count =get_be32(pb);
1076 int duration =get_be32(pb);
1077
b0519015
BC
1078 if (duration < 0) {
1079 av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1080 sc->ctts_count = 0;
1081 url_fskip(pb, 8 * (entries - i - 1));
1082 break;
1083 }
70a61ed4
MN
1084 sc->ctts_data[i].count = count;
1085 sc->ctts_data[i].duration= duration;
1086
1087 sc->time_rate= ff_gcd(sc->time_rate, duration);
c4ac052b
MN
1088 }
1089 return 0;
1090}
1091
bd991df2
BC
1092static void mov_build_index(MOVContext *mov, AVStream *st);
1093
5ca1d879
ZK
1094static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1095{
1096 AVStream *st;
1097 MOVStreamContext *sc;
bd991df2 1098 int ret;
5ca1d879 1099
5ca1d879
ZK
1100 st = av_new_stream(c->fc, c->fc->nb_streams);
1101 if (!st) return -2;
9a630c25 1102 sc = av_mallocz(sizeof(MOVStreamContext));
5ca1d879 1103 if (!sc) {
bb270c08 1104 av_free(st);
5ca1d879
ZK
1105 return -1;
1106 }
1107
5ca1d879 1108 st->priv_data = sc;
05edc1a7 1109 st->codec->codec_type = CODEC_TYPE_DATA;
25c4950e 1110 st->start_time = 0; /* XXX: check */
5ca1d879 1111
bd991df2
BC
1112 if ((ret = mov_read_default(c, pb, atom)) < 0)
1113 return ret;
1114
1115 /* sanity checks */
1116 if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz ||
1117 (!sc->sample_size && !sc->sample_count)){
1118 av_log(c->fc, AV_LOG_ERROR, "missing mandatory atoms, broken header\n");
1119 sc->sample_count = 0; //ignore track
1120 return 0;
1121 }
1122 if(!sc->time_rate)
1123 sc->time_rate=1;
1124 if(!sc->time_scale)
1125 sc->time_scale= c->time_scale;
1126 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1127
1128 if (st->codec->codec_type == CODEC_TYPE_AUDIO && sc->stts_count == 1)
1129 st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale);
1130
1131 if(st->duration != AV_NOPTS_VALUE){
1132 assert(st->duration % sc->time_rate == 0);
1133 st->duration /= sc->time_rate;
1134 }
1135 sc->ffindex = st->index;
1136 mov_build_index(c, st);
1137
1138 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1139 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
1140 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening external essence: %s\n",
1141 st->index, strerror(errno));
1142 } else
1143 sc->pb = c->fc->pb;
1144
1145 switch (st->codec->codec_id) {
1146#ifdef CONFIG_H261_DECODER
1147 case CODEC_ID_H261:
1148#endif
1149#ifdef CONFIG_H263_DECODER
1150 case CODEC_ID_H263:
1151#endif
1152#ifdef CONFIG_MPEG4_DECODER
1153 case CODEC_ID_MPEG4:
1154#endif
1155 st->codec->width= 0; /* let decoder init width/height */
1156 st->codec->height= 0;
1157 break;
1158#ifdef CONFIG_LIBFAAD
1159 case CODEC_ID_AAC:
1160#endif
1161#ifdef CONFIG_VORBIS_DECODER
1162 case CODEC_ID_VORBIS:
1163#endif
1164 case CODEC_ID_MP3ON4:
1165 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1166 break;
1167 }
1168 return 0;
5ca1d879
ZK
1169}
1170
d2ace376
BF
1171static void mov_parse_udta_string(ByteIOContext *pb, char *str, int size)
1172{
1173 uint16_t str_size = get_be16(pb); /* string length */;
1174
1175 get_be16(pb); /* skip language */
1176 get_buffer(pb, str, FFMIN(size, str_size));
1177}
1178
1179static int mov_read_udta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1180{
1181 uint64_t end = url_ftell(pb) + atom.size;
1182
1183 while (url_ftell(pb) + 8 < end) {
1184 uint32_t tag_size = get_be32(pb);
1185 uint32_t tag = get_le32(pb);
1186 uint64_t next = url_ftell(pb) + tag_size - 8;
1187
aaac6c29
BC
1188 if (next > end) // stop if tag_size is wrong
1189 break;
1190
d2ace376
BF
1191 switch (tag) {
1192 case MKTAG(0xa9,'n','a','m'):
1193 mov_parse_udta_string(pb, c->fc->title, sizeof(c->fc->title));
1194 break;
1195 case MKTAG(0xa9,'w','r','t'):
1196 mov_parse_udta_string(pb, c->fc->author, sizeof(c->fc->author));
1197 break;
1198 case MKTAG(0xa9,'c','p','y'):
1199 mov_parse_udta_string(pb, c->fc->copyright, sizeof(c->fc->copyright));
1200 break;
1201 case MKTAG(0xa9,'i','n','f'):
1202 mov_parse_udta_string(pb, c->fc->comment, sizeof(c->fc->comment));
1203 break;
1204 default:
1205 break;
1206 }
1207
1208 url_fseek(pb, next, SEEK_SET);
1209 }
1210
1211 return 0;
1212}
1213
5ca1d879
ZK
1214static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1215{
f444b977
BC
1216 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1217 int version = get_byte(pb);
5ca1d879 1218
23f08617 1219 get_be24(pb); /* flags */
5ca1d879
ZK
1220 /*
1221 MOV_TRACK_ENABLED 0x0001
1222 MOV_TRACK_IN_MOVIE 0x0002
1223 MOV_TRACK_IN_PREVIEW 0x0004
1224 MOV_TRACK_IN_POSTER 0x0008
1225 */
1226
1175561e
BC
1227 if (version == 1) {
1228 get_be64(pb);
1229 get_be64(pb);
1230 } else {
1231 get_be32(pb); /* creation time */
1232 get_be32(pb); /* modification time */
1233 }
5ca1d879
ZK
1234 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1235 get_be32(pb); /* reserved */
25c4950e 1236 st->start_time = 0; /* check */
1175561e 1237 (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
5ca1d879
ZK
1238 get_be32(pb); /* reserved */
1239 get_be32(pb); /* reserved */
1240
1241 get_be16(pb); /* layer */
1242 get_be16(pb); /* alternate group */
1243 get_be16(pb); /* volume */
1244 get_be16(pb); /* reserved */
1245
1246 url_fskip(pb, 36); /* display matrix */
1247
1248 /* those are fixed-point */
c3daf8d8
BC
1249 get_be32(pb); /* track width */
1250 get_be32(pb); /* track height */
5ca1d879
ZK
1251
1252 return 0;
1253}
1254
1255/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1256/* like the files created with Adobe Premiere 5.0, for samples see */
1257/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1258static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1259{
1260 int err;
5ca1d879 1261
5ca1d879
ZK
1262 if (atom.size < 8)
1263 return 0; /* continue */
1264 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1265 url_fskip(pb, atom.size - 4);
1266 return 0;
1267 }
1268 atom.type = get_le32(pb);
1269 atom.offset += 8;
1270 atom.size -= 8;
fd6e513e 1271 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
5ca1d879
ZK
1272 url_fskip(pb, atom.size);
1273 return 0;
1274 }
1275 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1276 return err;
1277}
1278
5ca1d879 1279static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1280{
d966b2f0 1281#ifdef CONFIG_ZLIB
0147f198 1282 ByteIOContext ctx;
b6a17df4
ZK
1283 uint8_t *cmov_data;
1284 uint8_t *moov_data; /* uncompressed data */
0147f198
FR
1285 long cmov_len, moov_len;
1286 int ret;
b6a17df4 1287
0147f198
FR
1288 get_be32(pb); /* dcom atom */
1289 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1290 return -1;
1291 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
4e5ef14f 1292 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1293 return -1;
1294 }
1295 get_be32(pb); /* cmvd atom */
1296 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1297 return -1;
1298 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1299 cmov_len = atom.size - 6 * 4;
5cd62665 1300
9a630c25 1301 cmov_data = av_malloc(cmov_len);
0147f198
FR
1302 if (!cmov_data)
1303 return -1;
9a630c25 1304 moov_data = av_malloc(moov_len);
0147f198
FR
1305 if (!moov_data) {
1306 av_free(cmov_data);
1307 return -1;
1308 }
1309 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1310 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
0147f198 1311 return -1;
942f3bb5 1312 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
0147f198 1313 return -1;
5ca1d879
ZK
1314 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1315 atom.offset = 0;
1316 atom.size = moov_len;
9ed83b0a 1317#ifdef DEBUG
dbb4f00a 1318// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1319#endif
5ca1d879 1320 ret = mov_read_default(c, &ctx, atom);
0147f198
FR
1321 av_free(moov_data);
1322 av_free(cmov_data);
1323 return ret;
d966b2f0
BC
1324#else
1325 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1326 return -1;
0147f198 1327#endif
d966b2f0 1328}
0147f198 1329
baf25c9d
GC
1330/* edit list atom */
1331static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1332{
7c622eed 1333 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1334 int i, edit_count;
1335
1336 get_byte(pb); /* version */
23f08617 1337 get_be24(pb); /* flags */
7c622eed 1338 edit_count= sc->edit_count = get_be32(pb); /* entries */
e0977c80
BC
1339
1340 for(i=0; i<edit_count; i++){
d435e520 1341 int time;
e0977c80 1342 get_be32(pb); /* Track duration */
d435e520 1343 time = get_be32(pb); /* Media time */
e0977c80 1344 get_be32(pb); /* Media rate */
d435e520
BC
1345 if (time != 0)
1346 av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, "
1347 "a/v desync might occur, patch welcome\n");
e0977c80 1348 }
7c622eed 1349 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count);
e0977c80 1350 return 0;
baf25c9d
GC
1351}
1352
6cea494e
ZK
1353static const MOVParseTableEntry mov_default_parse_table[] = {
1354/* mp4 atoms */
5ca1d879 1355{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
c4ac052b 1356{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
221e21b7
BC
1357{ MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default },
1358{ MKTAG( 'd', 'r', 'e', 'f' ), mov_read_dref },
5ca1d879 1359{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
58e555d4 1360{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
de23f234 1361{ MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
9a63497b 1362{ MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata },
4ea28253 1363{ MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
bde24601 1364{ MKTAG( 'g', 'l', 'b', 'l' ), mov_read_glbl },
5ca1d879 1365{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
014a5102 1366{ MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata },
5ca1d879
ZK
1367{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1368{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1369{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1370{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1371{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
5ca1d879 1372{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
169eb021 1373{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
014a5102 1374{ MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */
bde24601 1375{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_glbl },
5ca1d879
ZK
1376{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1377{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
5ca1d879
ZK
1378{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1379{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
247d56f5 1380{ MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
5ca1d879
ZK
1381{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1382{ MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1383{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1384{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
d2ace376 1385{ MKTAG( 'u', 'd', 't', 'a' ), mov_read_udta },
d9b1c197 1386{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
5ca1d879 1387{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
5ca1d879 1388{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
5ca1d879 1389{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
bcfe2ba0 1390{ 0, NULL }
6cea494e
ZK
1391};
1392
b6a17df4 1393/* XXX: is it sufficient ? */
c9a65ca8
FB
1394static int mov_probe(AVProbeData *p)
1395{
0e7eed09
FB
1396 unsigned int offset;
1397 uint32_t tag;
2497479f 1398 int score = 0;
3ffe3793 1399
c9a65ca8 1400 /* check file header */
0e7eed09
FB
1401 offset = 0;
1402 for(;;) {
1403 /* ignore invalid offset */
1404 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1405 return score;
fead30d4 1406 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1407 switch(tag) {
2497479f 1408 /* check for obvious tags */
fc5188f3 1409 case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
0e7eed09 1410 case MKTAG( 'm', 'o', 'o', 'v' ):
8b879f18
FR
1411 case MKTAG( 'm', 'd', 'a', 't' ):
1412 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
bc634f6f 1413 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
3ffe3793 1414 return AVPROBE_SCORE_MAX;
2497479f 1415 /* those are more common words, so rate then a bit less */
263a93ec 1416 case MKTAG( 'e', 'd', 'i', 'w' ): /* xdcam files have reverted first tags */
2497479f
FR
1417 case MKTAG( 'w', 'i', 'd', 'e' ):
1418 case MKTAG( 'f', 'r', 'e', 'e' ):
1419 case MKTAG( 'j', 'u', 'n', 'k' ):
1420 case MKTAG( 'p', 'i', 'c', 't' ):
1421 return AVPROBE_SCORE_MAX - 5;
da00a1bd 1422 case MKTAG(0x82,0x82,0x7f,0x7d ):
0e7eed09 1423 case MKTAG( 'f', 't', 'y', 'p' ):
5ca1d879 1424 case MKTAG( 's', 'k', 'i', 'p' ):
0d23cb84 1425 case MKTAG( 'u', 'u', 'i', 'd' ):
fead30d4 1426 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1427 /* if we only find those cause probedata is too small at least rate them */
1428 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1429 break;
1430 default:
1431 /* unrecognized tag */
2497479f 1432 return score;
0e7eed09 1433 }
3ffe3793 1434 }
2497479f 1435 return score;
c9a65ca8
FB
1436}
1437
b72708f8
BC
1438static void mov_build_index(MOVContext *mov, AVStream *st)
1439{
1440 MOVStreamContext *sc = st->priv_data;
1441 offset_t current_offset;
1442 int64_t current_dts = 0;
01aa1937
BC
1443 unsigned int stts_index = 0;
1444 unsigned int stsc_index = 0;
1445 unsigned int stss_index = 0;
53152765 1446 unsigned int i, j;
b72708f8 1447
77c75437
BC
1448 if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO ||
1449 sc->audio_cid == -2) {
01aa1937
BC
1450 unsigned int current_sample = 0;
1451 unsigned int stts_sample = 0;
1452 unsigned int keyframe, sample_size;
1453 unsigned int distance = 0;
26846ba5 1454 int key_off = sc->keyframes && sc->keyframes[0] == 1;
b72708f8
BC
1455
1456 st->nb_frames = sc->sample_count;
1457 for (i = 0; i < sc->chunk_count; i++) {
1458 current_offset = sc->chunk_offsets[i];
29c90869
BC
1459 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1460 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
b72708f8
BC
1461 stsc_index++;
1462 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
64934877
BC
1463 if (current_sample >= sc->sample_count) {
1464 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1465 goto out;
1466 }
26846ba5 1467 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
b72708f8
BC
1468 if (keyframe) {
1469 distance = 0;
1470 if (stss_index + 1 < sc->keyframe_count)
1471 stss_index++;
1472 }
1473 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
29c90869
BC
1474 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1475 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1476 current_offset, current_dts, sample_size, distance, keyframe);
ee6e2dbe 1477 if(sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id)
41e19673
MN
1478 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1479 keyframe ? AVINDEX_KEYFRAME : 0);
b72708f8
BC
1480 current_offset += sample_size;
1481 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1482 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1483 distance++;
1484 stts_sample++;
64934877 1485 current_sample++;
b72708f8
BC
1486 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1487 stts_sample = 0;
1488 stts_index++;
1489 }
1490 }
1491 }
1492 } else { /* read whole chunk */
01aa1937 1493 unsigned int chunk_samples, chunk_size, chunk_duration;
8cb66fd8 1494 unsigned int frames = 1;
b72708f8
BC
1495 for (i = 0; i < sc->chunk_count; i++) {
1496 current_offset = sc->chunk_offsets[i];
29c90869
BC
1497 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1498 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
b72708f8
BC
1499 stsc_index++;
1500 chunk_samples = sc->sample_to_chunk[stsc_index].count;
501f162f
BC
1501 /* get chunk size, beware of alaw/ulaw/mace */
1502 if (sc->samples_per_frame > 0 &&
1503 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
311490cc
BC
1504 if (sc->samples_per_frame < 1024)
1505 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1506 else {
1507 chunk_size = sc->bytes_per_frame;
1508 frames = chunk_samples / sc->samples_per_frame;
1509 chunk_samples = sc->samples_per_frame;
8cb66fd8 1510 }
501f162f
BC
1511 } else if (sc->sample_size > 1 || st->codec->bits_per_sample == 8) {
1512 chunk_size = chunk_samples * sc->sample_size;
53152765
BC
1513 } else {
1514 av_log(mov->fc, AV_LOG_ERROR, "could not determine chunk size, report problem\n");
1515 goto out;
b72708f8 1516 }
8cb66fd8 1517 for (j = 0; j < frames; j++) {
18978a49
BC
1518 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1519 /* get chunk duration */
1520 chunk_duration = 0;
1521 while (chunk_samples > 0) {
1522 if (chunk_samples < sc->stts_data[stts_index].count) {
1523 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1524 sc->stts_data[stts_index].count -= chunk_samples;
1525 break;
1526 } else {
1527 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1528 chunk_samples -= sc->stts_data[stts_index].count;
1529 if (stts_index + 1 < sc->stts_count)
1530 stts_index++;
1531 }
b72708f8 1532 }
18978a49
BC
1533 current_offset += sc->bytes_per_frame;
1534 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, "
1535 "duration %d\n", st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
1536 assert(chunk_duration % sc->time_rate == 0);
1537 current_dts += chunk_duration / sc->time_rate;
8cb66fd8 1538 }
b72708f8 1539 }
b72708f8 1540 }
64934877 1541 out:
1f1890c7
BC
1542 /* adjust sample count to avindex entries */
1543 sc->sample_count = st->nb_index_entries;
b72708f8
BC
1544}
1545
a266644f 1546static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1547{
e4141433 1548 MOVContext *mov = s->priv_data;
899681cd 1549 ByteIOContext *pb = s->pb;
05edc1a7 1550 int i, err;
5ca1d879 1551 MOV_atom_t atom = { 0, 0, 0 };
6cea494e 1552
6cea494e 1553 mov->fc = s;
3253c51f 1554
6cea494e 1555 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
bb270c08 1556 atom.size = url_fsize(pb);
6cea494e 1557 else
fa22ca22 1558 atom.size = INT64_MAX;
6cea494e 1559
6cea494e 1560 /* check MOV header */
5ca1d879 1561 err = mov_read_default(mov, pb, atom);
25fa62e1 1562 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
bb270c08
DB
1563 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
1564 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1565 return -1;
6cea494e 1566 }
318c5e05 1567 dprintf(mov->fc, "on_parse_exit_offset=%d\n", (int) url_ftell(pb));
4e5ef14f 1568
11f16b66 1569 for(i=0; i<s->nb_streams; i++) {
7c622eed 1570 MOVStreamContext *sc = s->streams[i]->priv_data;
755bfeab 1571 /* Do not need those anymore. */
7c622eed
BC
1572 av_freep(&sc->chunk_offsets);
1573 av_freep(&sc->sample_to_chunk);
1574 av_freep(&sc->sample_sizes);
1575 av_freep(&sc->keyframes);
1576 av_freep(&sc->stts_data);
b72708f8 1577 }
6cea494e
ZK
1578 return 0;
1579}
1580
a266644f 1581static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1582{
b72708f8
BC
1583 MOVContext *mov = s->priv_data;
1584 MOVStreamContext *sc = 0;
1585 AVIndexEntry *sample = 0;
86d8602f 1586 int64_t best_dts = INT64_MAX;
b72708f8 1587 int i;
3ffe3793 1588
11f16b66 1589 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1590 AVStream *st = s->streams[i];
1591 MOVStreamContext *msc = st->priv_data;
221e21b7 1592 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < msc->sample_count) {
7c622eed 1593 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1594 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1595 AV_TIME_BASE, msc->time_scale);
1c02d96f 1596 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1597 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1598 (!url_is_streamed(s->pb) &&
221e21b7 1599 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1600 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1601 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1602 sample = current_sample;
1603 best_dts = dts;
1604 sc = msc;
86d8602f 1605 }
6cea494e 1606 }
6cea494e 1607 }
b72708f8
BC
1608 if (!sample)
1609 return -1;
1610 /* must be done just before reading, to avoid infinite loop on sample */
1611 sc->current_sample++;
221e21b7 1612 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1613 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1614 sc->ffindex, sample->pos);
bb270c08 1615 return -1;
6cea494e 1616 }
221e21b7 1617 av_get_packet(sc->pb, pkt, sample->size);
312954f0 1618#ifdef CONFIG_DV_DEMUXER
56ea717b
BC
1619 if (mov->dv_demux && sc->dv_audio_container) {
1620 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1621 av_free(pkt->data);
300aa2b0
BC
1622 pkt->size = 0;
1623 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1624 return -1;
56ea717b 1625 }
312954f0 1626#endif
b72708f8
BC
1627 pkt->stream_index = sc->ffindex;
1628 pkt->dts = sample->timestamp;
1629 if (sc->ctts_data) {
1630 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1631 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1632 /* update ctts context */
1633 sc->sample_to_ctime_sample++;
29c90869
BC
1634 if (sc->sample_to_ctime_index < sc->ctts_count &&
1635 sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
b72708f8
BC
1636 sc->sample_to_ctime_index++;
1637 sc->sample_to_ctime_sample = 0;
b565ea09 1638 }
b72708f8
BC
1639 } else {
1640 pkt->pts = pkt->dts;
b565ea09 1641 }
b72708f8
BC
1642 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1643 pkt->pos = sample->pos;
29c90869
BC
1644 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1645 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1646 return 0;
1647}
3ffe3793 1648
b72708f8
BC
1649static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1650{
1651 MOVStreamContext *sc = st->priv_data;
1652 int sample, time_sample;
1653 int i;
115329f1 1654
b72708f8 1655 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1656 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1657 if (sample < 0) /* not sure what to do */
1658 return -1;
1659 sc->current_sample = sample;
1c02d96f 1660 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1661 /* adjust ctts index */
1662 if (sc->ctts_data) {
1663 time_sample = 0;
1664 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1665 int next = time_sample + sc->ctts_data[i].count;
1666 if (next > sc->current_sample) {
b72708f8 1667 sc->sample_to_ctime_index = i;
54a5c719 1668 sc->sample_to_ctime_sample = sc->current_sample - time_sample;
b72708f8 1669 break;
115329f1 1670 }
54a5c719 1671 time_sample = next;
247d56f5 1672 }
247d56f5 1673 }
b72708f8 1674 return sample;
6cea494e
ZK
1675}
1676
961e0ccd 1677static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1678{
b72708f8
BC
1679 AVStream *st;
1680 int64_t seek_timestamp, timestamp;
1681 int sample;
1682 int i;
baf25c9d 1683
b72708f8 1684 if (stream_index >= s->nb_streams)
baf25c9d 1685 return -1;
baf25c9d 1686
b72708f8
BC
1687 st = s->streams[stream_index];
1688 sample = mov_seek_stream(st, sample_time, flags);
1689 if (sample < 0)
baf25c9d 1690 return -1;
baf25c9d 1691
b72708f8
BC
1692 /* adjust seek timestamp to found sample timestamp */
1693 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 1694
b72708f8
BC
1695 for (i = 0; i < s->nb_streams; i++) {
1696 st = s->streams[i];
1697 if (stream_index == i || st->discard == AVDISCARD_ALL)
1698 continue;
baf25c9d 1699
b72708f8
BC
1700 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1701 mov_seek_stream(st, timestamp, flags);
115329f1 1702 }
baf25c9d
GC
1703 return 0;
1704}
baf25c9d 1705
a266644f 1706static int mov_read_close(AVFormatContext *s)
6cea494e 1707{
221e21b7 1708 int i, j;
e4141433 1709 MOVContext *mov = s->priv_data;
11f16b66 1710 for(i=0; i<s->nb_streams; i++) {
7c622eed
BC
1711 MOVStreamContext *sc = s->streams[i]->priv_data;
1712 av_freep(&sc->ctts_data);
221e21b7
BC
1713 for (j=0; j<sc->drefs_count; j++)
1714 av_freep(&sc->drefs[j].path);
1715 av_freep(&sc->drefs);
1716 if (sc->pb && sc->pb != s->pb)
1717 url_fclose(sc->pb);
4440b118 1718 }
b60c0454
BC
1719 if(mov->dv_demux){
1720 for(i=0; i<mov->dv_fctx->nb_streams; i++){
1721 av_freep(&mov->dv_fctx->streams[i]->codec);
1722 av_freep(&mov->dv_fctx->streams[i]);
1723 }
1724 av_freep(&mov->dv_fctx);
1725 av_freep(&mov->dv_demux);
1726 }
6cea494e
ZK
1727 return 0;
1728}
1729
ff70e601 1730AVInputFormat mov_demuxer = {
fc5188f3
BC
1731 "mov,mp4,m4a,3gp,3g2,mj2",
1732 "QuickTime/MPEG4/Motion JPEG 2000 format",
c9a65ca8
FB
1733 sizeof(MOVContext),
1734 mov_probe,
6cea494e
ZK
1735 mov_read_header,
1736 mov_read_packet,
1737 mov_read_close,
baf25c9d 1738 mov_read_seek,
6cea494e 1739};