Make RIFF-based demuxers handle F32LE and F64LE PCM audio.
[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"
245976da
DB
30#include "libavcodec/mpeg4audio.h"
31#include "libavcodec/mpegaudiodata.h"
6cea494e 32
0147f198
FR
33#ifdef CONFIG_ZLIB
34#include <zlib.h>
35#endif
36
6cea494e
ZK
37/*
38 * First version by Francois Revol revol@free.fr
115329f1 39 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 40 *
6cea494e 41 * Features and limitations:
5ca1d879 42 * - reads most of the QT files I have (at least the structure),
6cea494e 43 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 44 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 45 *
6cea494e
ZK
46 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
47 * when coding this :) (it's a writer anyway)
5ca1d879 48 *
6cea494e
ZK
49 * Reference documents:
50 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
51 * Apple:
baf25c9d 52 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 53 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
54 * QuickTime is a trademark of Apple (AFAIK :))
55 */
56
b595afaa
MM
57#include "qtpalette.h"
58
baf25c9d 59
cd7352d5
MN
60#undef NDEBUG
61#include <assert.h>
62
6cea494e
ZK
63/* the QuickTime file format is quite convoluted...
64 * it has lots of index tables, each indexing something in another one...
65 * Here we just use what is needed to read the chunks
66 */
67
e23848a4 68typedef struct {
1c02d96f
BC
69 int first;
70 int count;
71 int id;
e23848a4 72} MOV_stsc_t;
6cea494e 73
5cd62665 74typedef struct {
5ca1d879 75 uint32_t type;
221e21b7
BC
76 char *path;
77} MOV_dref_t;
78
79typedef struct {
80 uint32_t type;
5ca1d879
ZK
81 int64_t offset;
82 int64_t size; /* total size (excluding the size and type fields) */
83} MOV_atom_t;
84
b6a17df4
ZK
85struct MOVParseTableEntry;
86
61aedb0f
BC
87typedef struct {
88 unsigned track_id;
89 uint64_t base_data_offset;
90 uint64_t moof_offset;
91 unsigned stsd_id;
92 unsigned duration;
93 unsigned size;
94 unsigned flags;
95} MOVFragment;
96
97typedef struct {
98 unsigned track_id;
99 unsigned stsd_id;
100 unsigned duration;
101 unsigned size;
102 unsigned flags;
103} MOVTrackExt;
104
6cea494e 105typedef struct MOVStreamContext {
221e21b7 106 ByteIOContext *pb;
6cea494e 107 int ffindex; /* the ffmpeg stream id */
1c02d96f 108 int next_chunk;
44d3fea5 109 unsigned int chunk_count;
0c1a9eda 110 int64_t *chunk_offsets;
44d3fea5 111 unsigned int stts_count;
e23848a4 112 MOV_stts_t *stts_data;
44d3fea5 113 unsigned int ctts_count;
e23848a4 114 MOV_stts_t *ctts_data;
44d3fea5
BC
115 unsigned int edit_count; /* number of 'edit' (elst atom) */
116 unsigned int sample_to_chunk_sz;
e23848a4 117 MOV_stsc_t *sample_to_chunk;
c4ac052b
MN
118 int sample_to_ctime_index;
119 int sample_to_ctime_sample;
44d3fea5
BC
120 unsigned int sample_size;
121 unsigned int sample_count;
1c02d96f 122 int *sample_sizes;
44d3fea5 123 unsigned int keyframe_count;
1c02d96f 124 int *keyframes;
5cd62665 125 int time_scale;
cd7352d5 126 int time_rate;
1c02d96f 127 int current_sample;
e14f79ed
BC
128 unsigned int bytes_per_frame;
129 unsigned int samples_per_frame;
b60c0454 130 int dv_audio_container;
978677a7 131 int pseudo_stream_id; ///< -1 means demux all ids
77c75437 132 int16_t audio_cid; ///< stsd audio compression id
221e21b7
BC
133 unsigned drefs_count;
134 MOV_dref_t *drefs;
135 int dref_id;
6cea494e
ZK
136} MOVStreamContext;
137
138typedef struct MOVContext {
6cea494e 139 AVFormatContext *fc;
5cd62665 140 int time_scale;
7e815047 141 int64_t duration; /* duration of the longest track */
6cea494e
ZK
142 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
143 int found_mdat; /* we suppose we have enough data to read the file */
b595afaa 144 AVPaletteControl palette_control;
b60c0454
BC
145 DVDemuxContext *dv_demux;
146 AVFormatContext *dv_fctx;
152e9a43 147 int isom; /* 1 if file is ISO Media (mp4/3gp) */
61aedb0f
BC
148 MOVFragment fragment; ///< current fragment in moof atom
149 MOVTrackExt *trex_data;
150 unsigned trex_count;
6cea494e
ZK
151} MOVContext;
152
153
6cea494e
ZK
154/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
155
156/* those functions parse an atom */
157/* return code:
e3c4740f 158 0: continue to parse next atom
d9526386 159 <0: error occurred, exit
e3c4740f 160*/
6cea494e
ZK
161/* links atom IDs to parse functions */
162typedef struct MOVParseTableEntry {
0c1a9eda 163 uint32_t type;
03dc32f6 164 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
6cea494e
ZK
165} MOVParseTableEntry;
166
73d07c27
BC
167static const MOVParseTableEntry mov_default_parse_table[];
168
5ca1d879 169static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 170{
b6a17df4 171 int64_t total_size = 0;
5ca1d879 172 MOV_atom_t a;
6cea494e
ZK
173 int i;
174 int err = 0;
5ca1d879 175
5ca1d879 176 a.offset = atom.offset;
6cea494e 177
9ed83b0a 178 if (atom.size < 0)
fa22ca22 179 atom.size = INT64_MAX;
5ca1d879 180 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
bb270c08 181 a.size = atom.size;
bcfe2ba0 182 a.type=0;
5ca1d879 183 if(atom.size >= 8) {
bb270c08 184 a.size = get_be32(pb);
5ca1d879 185 a.type = get_le32(pb);
6cea494e 186 }
bb270c08 187 total_size += 8;
5ca1d879 188 a.offset += 8;
29c90869
BC
189 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
190 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 191 if (a.size == 1) { /* 64 bit extended size */
bb270c08 192 a.size = get_be64(pb) - 8;
5ca1d879
ZK
193 a.offset += 8;
194 total_size += 8;
6cea494e 195 }
bb270c08
DB
196 if (a.size == 0) {
197 a.size = atom.size - total_size;
198 if (a.size <= 8)
5cd62665 199 break;
bb270c08 200 }
bb270c08 201 a.size -= 8;
8622613d 202 if(a.size < 0)
568e18b1 203 break;
3d2308b0 204 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 205
bcfe2ba0 206 for (i = 0; mov_default_parse_table[i].type != 0
73d07c27 207 && mov_default_parse_table[i].type != a.type; i++)
11979c46
BC
208 /* empty */;
209
73d07c27 210 if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
5ca1d879 211 url_fskip(pb, a.size);
bb270c08 212 } else {
5c72cad8
BC
213 offset_t start_pos = url_ftell(pb);
214 int64_t left;
03dc32f6 215 err = mov_default_parse_table[i].parse(c, pb, a);
db3ee6cc 216 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
687f35f3 217 break;
5c72cad8
BC
218 left = a.size - url_ftell(pb) + start_pos;
219 if (left > 0) /* skip garbage at atom end */
220 url_fskip(pb, left);
bb270c08 221 }
6cea494e 222
bb270c08 223 a.offset += a.size;
5ca1d879 224 total_size += a.size;
6cea494e
ZK
225 }
226
9ce84dd8 227 if (!err && total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 228 url_fskip(pb, atom.size - total_size);
5cd62665 229
6cea494e
ZK
230 return err;
231}
232
221e21b7
BC
233static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
234{
235 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
236 MOVStreamContext *sc = st->priv_data;
237 int entries, i, j;
238
239 get_be32(pb); // version + flags
240 entries = get_be32(pb);
241 if (entries >= UINT_MAX / sizeof(*sc->drefs))
242 return -1;
243 sc->drefs_count = entries;
244 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
245
246 for (i = 0; i < sc->drefs_count; i++) {
247 MOV_dref_t *dref = &sc->drefs[i];
248 uint32_t size = get_be32(pb);
249 offset_t next = url_ftell(pb) + size - 4;
250
251 dref->type = get_le32(pb);
252 get_be32(pb); // version + flags
253 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
254
255 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
256 /* macintosh alias record */
257 uint16_t volume_len, len;
258 char volume[28];
259 int16_t type;
260
261 url_fskip(pb, 10);
262
263 volume_len = get_byte(pb);
264 volume_len = FFMIN(volume_len, 27);
265 get_buffer(pb, volume, 27);
266 volume[volume_len] = 0;
267 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
268
269 url_fskip(pb, 112);
270
271 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
272 type = get_be16(pb);
273 len = get_be16(pb);
274 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
275 if (len&1)
276 len += 1;
277 if (type == 2) { // absolute path
dbb37657 278 av_free(dref->path);
221e21b7 279 dref->path = av_mallocz(len+1);
2f4568e5
BC
280 if (!dref->path)
281 return AVERROR(ENOMEM);
221e21b7 282 get_buffer(pb, dref->path, len);
dbb7cbf2 283 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
284 len -= volume_len;
285 memmove(dref->path, dref->path+volume_len, len);
286 dref->path[len] = 0;
287 }
288 for (j = 0; j < len; j++)
289 if (dref->path[j] == ':')
290 dref->path[j] = '/';
291 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
292 } else
293 url_fskip(pb, len);
294 }
295 }
296 url_fseek(pb, next, SEEK_SET);
297 }
298 return 0;
299}
300
5ca1d879 301static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 302{
5ca1d879 303 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
0c1a9eda 304 uint32_t type;
0c1a9eda 305 uint32_t ctype;
b6a17df4 306
6cea494e 307 get_byte(pb); /* version */
23f08617 308 get_be24(pb); /* flags */
6cea494e
ZK
309
310 /* component type */
311 ctype = get_le32(pb);
312 type = get_le32(pb); /* component subtype */
313
29c90869
BC
314 dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
315 ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
316 dprintf(c->fc, "stype= %c%c%c%c\n",
317 *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
152e9a43
BC
318 if(!ctype)
319 c->isom = 1;
37ffe34b 320 if (type == MKTAG('v','i','d','e'))
73920f07 321 st->codec->codec_type = CODEC_TYPE_VIDEO;
1c126b4f 322 else if(type == MKTAG('s','o','u','n'))
73920f07 323 st->codec->codec_type = CODEC_TYPE_AUDIO;
1c126b4f 324 else if(type == MKTAG('m','1','a',' '))
95a07973 325 st->codec->codec_id = CODEC_ID_MP2;
1c126b4f 326 else if(type == MKTAG('s','u','b','p')) {
8cb97693 327 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
8cb97693 328 }
6cea494e
ZK
329 get_be32(pb); /* component manufacture */
330 get_be32(pb); /* component flags */
331 get_be32(pb); /* component flags mask */
332
5ca1d879 333 if(atom.size <= 24)
6cea494e 334 return 0; /* nothing left to read */
5cd62665 335
3c13647a 336 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
337 return 0;
338}
339
9e40addd 340static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 341{
5cd62665 342 int len = 0;
5ca1d879
ZK
343 int count = 4;
344 while (count--) {
5cd62665 345 int c = get_byte(pb);
bb270c08
DB
346 len = (len << 7) | (c & 0x7f);
347 if (!(c & 0x80))
348 break;
0e7eed09
FB
349 }
350 return len;
351}
352
9e40addd 353static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
354{
355 int len;
356 *tag = get_byte(pb);
9e40addd 357 len = mp4_read_descr_len(pb);
318c5e05 358 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
359 return len;
360}
361
0b07ac42
BC
362#define MP4ESDescrTag 0x03
363#define MP4DecConfigDescrTag 0x04
364#define MP4DecSpecificDescrTag 0x05
365
1dec3994
BC
366static const AVCodecTag mp4_audio_types[] = {
367 { CODEC_ID_MP3ON4, 29 }, /* old mp3on4 draft */
368 { CODEC_ID_MP3ON4, 32 }, /* layer 1 */
369 { CODEC_ID_MP3ON4, 33 }, /* layer 2 */
370 { CODEC_ID_MP3ON4, 34 }, /* layer 3 */
371 { CODEC_ID_NONE, 0 },
372};
373
5ca1d879 374static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
5cd62665 375{
5cd62665 376 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 377 int tag, len;
b6a17df4 378
5cd62665 379 get_be32(pb); /* version + flags */
9e40addd 380 len = mp4_read_descr(c, pb, &tag);
5cd62665 381 if (tag == MP4ESDescrTag) {
bb270c08
DB
382 get_be16(pb); /* ID */
383 get_byte(pb); /* priority */
5cd62665 384 } else
bb270c08 385 get_be16(pb); /* ID */
5cd62665 386
9e40addd 387 len = mp4_read_descr(c, pb, &tag);
5cd62665 388 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
389 int object_type_id = get_byte(pb);
390 get_byte(pb); /* stream type */
391 get_be24(pb); /* buffer size db */
392 get_be32(pb); /* max bitrate */
393 get_be32(pb); /* avg bitrate */
394
395 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
396 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 397 len = mp4_read_descr(c, pb, &tag);
bb270c08 398 if (tag == MP4DecSpecificDescrTag) {
318c5e05 399 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
400 if((uint64_t)len > (1<<30))
401 return -1;
9a630c25 402 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
403 if (!st->codec->extradata)
404 return AVERROR(ENOMEM);
17871a02
BC
405 get_buffer(pb, st->codec->extradata, len);
406 st->codec->extradata_size = len;
1dec3994
BC
407 if (st->codec->codec_id == CODEC_ID_AAC) {
408 MPEG4AudioConfig cfg;
409 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
410 st->codec->extradata_size);
391872e4 411 if (cfg.chan_config > 7)
45a97d30
BC
412 return -1;
413 st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
414 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
415 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
416 else
417 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
418 dprintf(c->fc, "mp4a config channels %d obj %d ext obj %d "
419 "sample rate %d ext sample rate %d\n", st->codec->channels,
420 cfg.object_type, cfg.ext_object_type,
421 cfg.sample_rate, cfg.ext_sample_rate);
1dec3994
BC
422 if (!(st->codec->codec_id = codec_get_id(mp4_audio_types,
423 cfg.object_type)))
424 st->codec->codec_id = CODEC_ID_AAC;
17871a02 425 }
bb270c08 426 }
5cd62665 427 }
5cd62665
ZK
428 return 0;
429}
430
5ca1d879
ZK
431/* this atom contains actual media data */
432static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 433{
5ca1d879
ZK
434 if(atom.size == 0) /* wrong one (MP4) */
435 return 0;
436 c->found_mdat=1;
5ca1d879
ZK
437 return 0; /* now go for moov */
438}
439
4ea28253
BC
440static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
441{
442 uint32_t type = get_le32(pb);
443
152e9a43
BC
444 if (type != MKTAG('q','t',' ',' '))
445 c->isom = 1;
a512446e 446 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
447 get_be32(pb); /* minor version */
448 url_fskip(pb, atom.size - 8);
449 return 0;
450}
451
5ca1d879
ZK
452/* this atom should contain all header atoms */
453static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
454{
9cf0419b
PI
455 if (mov_read_default(c, pb, atom) < 0)
456 return -1;
5ca1d879
ZK
457 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
458 /* so we don't parse the whole file if over a network */
459 c->found_moov=1;
5ca1d879
ZK
460 return 0; /* now go for mdat */
461}
462
61aedb0f
BC
463static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
464{
465 c->fragment.moof_offset = url_ftell(pb) - 8;
466 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
467 return mov_read_default(c, pb, atom);
468}
5ca1d879
ZK
469
470static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
471{
f444b977 472 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 473 MOVStreamContext *sc = st->priv_data;
f444b977 474 int version = get_byte(pb);
b9a87c4d 475 int lang;
5ca1d879 476
b9a87c4d 477 if (version > 1)
7e627332 478 return -1; /* unsupported */
5ca1d879 479
23f08617 480 get_be24(pb); /* flags */
f444b977
BC
481 if (version == 1) {
482 get_be64(pb);
483 get_be64(pb);
484 } else {
485 get_be32(pb); /* creation time */
486 get_be32(pb); /* modification time */
487 }
5ca1d879 488
f444b977
BC
489 sc->time_scale = get_be32(pb);
490 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 491
b9a87c4d 492 lang = get_be16(pb); /* language */
f444b977 493 ff_mov_lang_to_iso639(lang, st->language);
5ca1d879
ZK
494 get_be16(pb); /* quality */
495
496 return 0;
497}
498
499static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
500{
1175561e 501 int version = get_byte(pb); /* version */
23f08617 502 get_be24(pb); /* flags */
5ca1d879 503
1175561e
BC
504 if (version == 1) {
505 get_be64(pb);
506 get_be64(pb);
507 } else {
508 get_be32(pb); /* creation time */
509 get_be32(pb); /* modification time */
510 }
5ca1d879 511 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
512
513 dprintf(c->fc, "time scale = %i\n", c->time_scale);
514
1175561e 515 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
516 get_be32(pb); /* preferred scale */
517
518 get_be16(pb); /* preferred volume */
519
520 url_fskip(pb, 10); /* reserved */
521
522 url_fskip(pb, 36); /* display matrix */
523
524 get_be32(pb); /* preview time */
525 get_be32(pb); /* preview duration */
526 get_be32(pb); /* poster time */
527 get_be32(pb); /* selection time */
528 get_be32(pb); /* selection duration */
529 get_be32(pb); /* current time */
530 get_be32(pb); /* next track ID */
531
532 return 0;
533}
534
9ed83b0a
ZK
535static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
536{
537 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
538
568e18b1
MN
539 if((uint64_t)atom.size > (1<<30))
540 return -1;
115329f1 541
9ed83b0a
ZK
542 // currently SVQ3 decoder expect full STSD header - so let's fake it
543 // this should be fixed and just SMI header should be passed
01f4895c 544 av_free(st->codec->extradata);
b014dd76
BC
545 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
546 if (!st->codec->extradata)
547 return AVERROR(ENOMEM);
17871a02
BC
548 st->codec->extradata_size = 0x5a + atom.size;
549 memcpy(st->codec->extradata, "SVQ3", 4); // fake
550 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
551 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
552 return 0;
553}
5ca1d879 554
de23f234
BC
555static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
556{
557 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
558 int little_endian = get_be16(pb);
559
560 if (little_endian) {
561 switch (st->codec->codec_id) {
562 case CODEC_ID_PCM_S24BE:
563 st->codec->codec_id = CODEC_ID_PCM_S24LE;
564 break;
565 case CODEC_ID_PCM_S32BE:
566 st->codec->codec_id = CODEC_ID_PCM_S32LE;
567 break;
568 default:
569 break;
570 }
571 }
572 return 0;
573}
574
014a5102
BC
575/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
576static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
de23f234
BC
577{
578 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
68bc33fa
BC
579 uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
580 uint8_t *buf;
581 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 582 return -1;
68bc33fa
BC
583 buf= av_realloc(st->codec->extradata, size);
584 if(!buf)
585 return -1;
586 st->codec->extradata= buf;
587 buf+= st->codec->extradata_size;
588 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
589 AV_WB32( buf , atom.size + 8);
590 AV_WL32( buf + 4, atom.type);
591 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
592 return 0;
593}
594
d9b1c197
RT
595static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
596{
597 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
598
599 if((uint64_t)atom.size > (1<<30))
600 return -1;
115329f1 601
3840147e
MN
602 if (st->codec->codec_id == CODEC_ID_QDM2) {
603 // pass all frma atom to codec, needed at least for QDM2
604 av_free(st->codec->extradata);
b014dd76
BC
605 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
606 if (!st->codec->extradata)
607 return AVERROR(ENOMEM);
3840147e 608 st->codec->extradata_size = atom.size;
b014dd76 609 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 610 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
611 if (mov_read_default(c, pb, atom) < 0)
612 return -1;
5c72cad8 613 } else
bb270c08 614 url_fskip(pb, atom.size);
d9b1c197
RT
615 return 0;
616}
617
bde24601
BC
618/**
619 * This function reads atom content and puts data in extradata without tag
620 * nor size unlike mov_read_extradata.
621 */
622static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
169eb021
MM
623{
624 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
625
568e18b1
MN
626 if((uint64_t)atom.size > (1<<30))
627 return -1;
628
01f4895c 629 av_free(st->codec->extradata);
b014dd76
BC
630 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
631 if (!st->codec->extradata)
632 return AVERROR(ENOMEM);
01f4895c 633 st->codec->extradata_size = atom.size;
b014dd76 634 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
635 return 0;
636}
637
5ca1d879
ZK
638static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
639{
640 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 641 MOVStreamContext *sc = st->priv_data;
568e18b1 642 unsigned int i, entries;
5ca1d879 643
5ca1d879 644 get_byte(pb); /* version */
23f08617 645 get_be24(pb); /* flags */
5ca1d879
ZK
646
647 entries = get_be32(pb);
115329f1 648
568e18b1
MN
649 if(entries >= UINT_MAX/sizeof(int64_t))
650 return -1;
115329f1 651
5ca1d879 652 sc->chunk_count = entries;
9a630c25 653 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879
ZK
654 if (!sc->chunk_offsets)
655 return -1;
37ffe34b
BC
656 if (atom.type == MKTAG('s','t','c','o'))
657 for(i=0; i<entries; i++)
5ca1d879 658 sc->chunk_offsets[i] = get_be32(pb);
37ffe34b
BC
659 else if (atom.type == MKTAG('c','o','6','4'))
660 for(i=0; i<entries; i++)
5ca1d879 661 sc->chunk_offsets[i] = get_be64(pb);
37ffe34b 662 else
5ca1d879 663 return -1;
115329f1 664
5ca1d879
ZK
665 return 0;
666}
667
2288834f
BC
668/**
669 * Compute codec id for 'lpcm' tag.
670 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
671 */
672static int mov_get_lpcm_codec_id(int bps, int flags)
673{
674 if (flags & 1) { // floating point
675 if (flags & 2) { // big endian
676 if (bps == 32) return CODEC_ID_PCM_F32BE;
677 //else if (bps == 64) return CODEC_ID_PCM_F64BE;
678 } else {
679 //if (bps == 32) return CODEC_ID_PCM_F32LE;
680 //else if (bps == 64) return CODEC_ID_PCM_F64LE;
681 }
682 } else {
683 if (flags & 2) {
684 if (bps == 8)
685 // signed integer
686 if (flags & 4) return CODEC_ID_PCM_S8;
687 else return CODEC_ID_PCM_U8;
688 else if (bps == 16) return CODEC_ID_PCM_S16BE;
689 else if (bps == 24) return CODEC_ID_PCM_S24BE;
690 else if (bps == 32) return CODEC_ID_PCM_S32BE;
691 } else {
692 if (bps == 8)
693 if (flags & 4) return CODEC_ID_PCM_S8;
694 else return CODEC_ID_PCM_U8;
021b8ae3 695 else if (bps == 16) return CODEC_ID_PCM_S16LE;
2288834f
BC
696 else if (bps == 24) return CODEC_ID_PCM_S24LE;
697 else if (bps == 32) return CODEC_ID_PCM_S32LE;
698 }
699 }
700 return 0;
701}
702
5ca1d879
ZK
703static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
704{
705 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 706 MOVStreamContext *sc = st->priv_data;
baf9fb32 707 int j, entries, pseudo_stream_id;
b595afaa 708
6cea494e 709 get_byte(pb); /* version */
23f08617 710 get_be24(pb); /* flags */
6cea494e 711
6cea494e
ZK
712 entries = get_be32(pb);
713
117a9190
BC
714 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
715 //Parsing Sample description table
b6a17df4 716 enum CodecID id;
221e21b7 717 int dref_id;
de23f234 718 MOV_atom_t a = { 0, 0, 0 };
3840147e 719 offset_t start_pos = url_ftell(pb);
bb270c08 720 int size = get_be32(pb); /* size */
baf9fb32 721 uint32_t format = get_le32(pb); /* data format */
5cd62665 722
6cea494e
ZK
723 get_be32(pb); /* reserved */
724 get_be16(pb); /* reserved */
221e21b7 725 dref_id = get_be16(pb);
0e7eed09 726
744a9c75 727 if (st->codec->codec_tag &&
978677a7 728 st->codec->codec_tag != format &&
744a9c75 729 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
1c126b4f 730 : st->codec->codec_tag != MKTAG('j','p','e','g'))
744a9c75 731 ){
7ce68923
DB
732 /* Multiple fourcc, we skip JPEG. This is not correct, we should
733 * export it as a separate AVStream but this needs a few changes
734 * in the MOV demuxer, patch welcome. */
285a3da9 735 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
e7cc4b52
BC
736 url_fskip(pb, size - (url_ftell(pb) - start_pos));
737 continue;
738 }
978677a7 739 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
221e21b7 740 sc->dref_id= dref_id;
e7cc4b52 741
bb270c08 742 st->codec->codec_tag = format;
1e5f5e3b 743 id = codec_get_id(codec_movaudio_tags, format);
1c126b4f 744 if (id<=0 && (format&0xFFFF) == 'm'+('s'<<8))
bca7db35
MN
745 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
746
48855b26 747 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 748 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26 749 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
1c126b4f 750 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
1e5f5e3b 751 id = codec_get_id(codec_movvideo_tags, format);
99487f42 752 if (id <= 0)
de23f234 753 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
754 if (id > 0)
755 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
756 else if(st->codec->codec_type == CODEC_TYPE_DATA){
757 id = codec_get_id(ff_codec_movsubtitle_tags, format);
758 if(id > 0)
759 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
760 }
99487f42
BC
761 }
762
29c90869
BC
763 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
764 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
765 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 766
99487f42 767 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
baf9fb32
BC
768 uint8_t codec_name[32];
769 unsigned int color_depth;
770 int color_greyscale;
baf9fb32 771
01f4895c 772 st->codec->codec_id = id;
6cea494e
ZK
773 get_be16(pb); /* version */
774 get_be16(pb); /* revision level */
775 get_be32(pb); /* vendor */
776 get_be32(pb); /* temporal quality */
94472c1d 777 get_be32(pb); /* spatial quality */
3cb4ee51
BC
778
779 st->codec->width = get_be16(pb); /* width */
780 st->codec->height = get_be16(pb); /* height */
781
6cea494e
ZK
782 get_be32(pb); /* horiz resolution */
783 get_be32(pb); /* vert resolution */
784 get_be32(pb); /* data size, always 0 */
43612ffe 785 get_be16(pb); /* frames per samples */
f8c18cd7 786
eb034aca 787 get_buffer(pb, codec_name, 32); /* codec name, pascal string */
576f1445
BC
788 if (codec_name[0] <= 31) {
789 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
790 st->codec->codec_name[codec_name[0]] = 0;
791 }
5cd62665 792
bb270c08 793 st->codec->bits_per_sample = get_be16(pb); /* depth */
01f4895c 794 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f
BC
795 dprintf(c->fc, "depth %d, ctab id %d\n",
796 st->codec->bits_per_sample, st->codec->color_table_id);
b595afaa 797 /* figure out the palette situation */
01f4895c
MN
798 color_depth = st->codec->bits_per_sample & 0x1F;
799 color_greyscale = st->codec->bits_per_sample & 0x20;
b595afaa
MM
800
801 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 802 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 803 (color_depth == 8)) {
47e1d7ef
BC
804 /* for palette traversal */
805 unsigned int color_start, color_count, color_end;
806 unsigned char r, g, b;
807
b595afaa 808 if (color_greyscale) {
47e1d7ef 809 int color_index, color_dec;
b595afaa 810 /* compute the greyscale palette */
0de2157f 811 st->codec->bits_per_sample = color_depth;
b595afaa
MM
812 color_count = 1 << color_depth;
813 color_index = 255;
814 color_dec = 256 / (color_count - 1);
815 for (j = 0; j < color_count; j++) {
816 r = g = b = color_index;
817 c->palette_control.palette[j] =
818 (r << 16) | (g << 8) | (b);
819 color_index -= color_dec;
820 if (color_index < 0)
821 color_index = 0;
822 }
71f36235 823 } else if (st->codec->color_table_id) {
47e1d7ef 824 const uint8_t *color_table;
b595afaa
MM
825 /* if flag bit 3 is set, use the default palette */
826 color_count = 1 << color_depth;
827 if (color_depth == 2)
a90466f7 828 color_table = ff_qt_default_palette_4;
b595afaa 829 else if (color_depth == 4)
a90466f7 830 color_table = ff_qt_default_palette_16;
b595afaa 831 else
a90466f7 832 color_table = ff_qt_default_palette_256;
b595afaa
MM
833
834 for (j = 0; j < color_count; j++) {
835 r = color_table[j * 4 + 0];
836 g = color_table[j * 4 + 1];
837 b = color_table[j * 4 + 2];
838 c->palette_control.palette[j] =
839 (r << 16) | (g << 8) | (b);
840 }
b595afaa 841 } else {
b595afaa
MM
842 /* load the palette from the file */
843 color_start = get_be32(pb);
844 color_count = get_be16(pb);
845 color_end = get_be16(pb);
8b35bd80
MM
846 if ((color_start <= 255) &&
847 (color_end <= 255)) {
9de2919c
MM
848 for (j = color_start; j <= color_end; j++) {
849 /* each R, G, or B component is 16 bits;
850 * only use the top 8 bits; skip alpha bytes
851 * up front */
852 get_byte(pb);
853 get_byte(pb);
854 r = get_byte(pb);
855 get_byte(pb);
856 g = get_byte(pb);
857 get_byte(pb);
858 b = get_byte(pb);
859 get_byte(pb);
860 c->palette_control.palette[j] =
861 (r << 16) | (g << 8) | (b);
8b35bd80 862 }
b595afaa
MM
863 }
864 }
01f4895c
MN
865 st->codec->palctrl = &c->palette_control;
866 st->codec->palctrl->palette_changed = 1;
b595afaa 867 } else
01f4895c 868 st->codec->palctrl = NULL;
de23f234 869 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
aaef2bb3 870 int bits_per_sample, flags;
de23f234 871 uint16_t version = get_be16(pb);
b595afaa 872
99487f42 873 st->codec->codec_id = id;
de23f234
BC
874 get_be16(pb); /* revision level */
875 get_be32(pb); /* vendor */
6d6d7970 876
de23f234 877 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 878 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
de23f234 879 st->codec->bits_per_sample = get_be16(pb); /* sample size */
de23f234 880
77c75437 881 sc->audio_cid = get_be16(pb);
de23f234
BC
882 get_be16(pb); /* packet size = 0 */
883
884 st->codec->sample_rate = ((get_be32(pb) >> 16));
885
5ef3ad59
BC
886 //Read QT version 1 fields. In version 0 these do not exist.
887 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
888 if(!c->isom) {
889 if(version==1) {
890 sc->samples_per_frame = get_be32(pb);
891 get_be32(pb); /* bytes per packet */
892 sc->bytes_per_frame = get_be32(pb);
893 get_be32(pb); /* bytes per sample */
894 } else if(version==2) {
895 get_be32(pb); /* sizeof struct only */
896 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
897 st->codec->channels = get_be32(pb);
898 get_be32(pb); /* always 0x7F000000 */
9184d53a 899 st->codec->bits_per_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
aaef2bb3 900 flags = get_be32(pb); /* lcpm format specific flag */
9184d53a
BC
901 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
902 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
2288834f
BC
903 if (format == MKTAG('l','p','c','m'))
904 st->codec->codec_id = mov_get_lpcm_codec_id(st->codec->bits_per_sample, flags);
5ef3ad59
BC
905 }
906 }
907
de23f234 908 switch (st->codec->codec_id) {
b72708f8
BC
909 case CODEC_ID_PCM_S8:
910 case CODEC_ID_PCM_U8:
911 if (st->codec->bits_per_sample == 16)
912 st->codec->codec_id = CODEC_ID_PCM_S16BE;
913 break;
0dd39bfe 914 case CODEC_ID_PCM_S16LE:
de23f234
BC
915 case CODEC_ID_PCM_S16BE:
916 if (st->codec->bits_per_sample == 8)
917 st->codec->codec_id = CODEC_ID_PCM_S8;
0299a87c 918 else if (st->codec->bits_per_sample == 24)
6b477e1b
BC
919 st->codec->codec_id =
920 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
921 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
de23f234 922 break;
53152765
BC
923 /* set values for old format before stsd version 1 appeared */
924 case CODEC_ID_MACE3:
925 sc->samples_per_frame = 6;
926 sc->bytes_per_frame = 2*st->codec->channels;
927 break;
928 case CODEC_ID_MACE6:
929 sc->samples_per_frame = 6;
930 sc->bytes_per_frame = 1*st->codec->channels;
931 break;
932 case CODEC_ID_ADPCM_IMA_QT:
933 sc->samples_per_frame = 64;
934 sc->bytes_per_frame = 34*st->codec->channels;
935 break;
cc326d2b
BC
936 case CODEC_ID_GSM:
937 sc->samples_per_frame = 160;
938 sc->bytes_per_frame = 33;
939 break;
de23f234
BC
940 default:
941 break;
6d6d7970 942 }
14342fd5 943
9770089d
BC
944 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
945 if (bits_per_sample) {
946 st->codec->bits_per_sample = bits_per_sample;
947 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
948 }
cc8d87b7
MN
949 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
950 st->codec->codec_id= id;
de23f234
BC
951 } else {
952 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
953 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 954 }
de23f234
BC
955 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
956 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
957 if (a.size > 8) {
958 if (mov_read_default(c, pb, a) < 0)
959 return -1;
960 } else if (a.size > 0)
de23f234 961 url_fskip(pb, a.size);
6cea494e 962 }
115329f1 963
60f5c96e 964 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 965 st->codec->sample_rate= sc->time_scale;
e31bd3e3 966
d00f8e17 967 /* special codec parameters handling */
e31bd3e3 968 switch (st->codec->codec_id) {
989ac5a6 969#ifdef CONFIG_DV_DEMUXER
b60c0454
BC
970 case CODEC_ID_DVAUDIO:
971 c->dv_fctx = av_alloc_format_context();
972 c->dv_demux = dv_init_demux(c->dv_fctx);
973 if (!c->dv_demux) {
974 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
975 return -1;
976 }
977 sc->dv_audio_container = 1;
978 st->codec->codec_id = CODEC_ID_PCM_S16LE;
979 break;
989ac5a6 980#endif
b95319a2
BC
981 /* no ifdef since parameters are always those */
982 case CODEC_ID_AMR_WB:
983 st->codec->sample_rate= 16000;
984 st->codec->channels= 1; /* really needed */
985 break;
3f78a3a9 986 case CODEC_ID_QCELP:
b95319a2 987 case CODEC_ID_AMR_NB:
cfb5a2ab 988 st->codec->frame_size= sc->samples_per_frame;
b95319a2
BC
989 st->codec->sample_rate= 8000;
990 st->codec->channels= 1; /* really needed */
991 break;
a41104f8 992 case CODEC_ID_MP2:
c59f24e6 993 case CODEC_ID_MP3:
95a07973 994 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 995 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 996 break;
5610f20e 997 case CODEC_ID_GSM:
74e9b9ae
BC
998 case CODEC_ID_ADPCM_MS:
999 case CODEC_ID_ADPCM_IMA_WAV:
1000 st->codec->block_align = sc->bytes_per_frame;
1001 break;
be511925
BC
1002 case CODEC_ID_ALAC:
1003 if (st->codec->extradata_size == 36)
1004 st->codec->frame_size = AV_RB32((st->codec->extradata+12));
1005 break;
e31bd3e3
BC
1006 default:
1007 break;
1008 }
5cd62665 1009
6cea494e
ZK
1010 return 0;
1011}
1012
5ca1d879 1013static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 1014{
5ca1d879 1015 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1016 MOVStreamContext *sc = st->priv_data;
568e18b1 1017 unsigned int i, entries;
b6a17df4 1018
6cea494e 1019 get_byte(pb); /* version */
23f08617 1020 get_be24(pb); /* flags */
6cea494e
ZK
1021
1022 entries = get_be32(pb);
115329f1 1023
e23848a4 1024 if(entries >= UINT_MAX / sizeof(MOV_stsc_t))
568e18b1 1025 return -1;
115329f1 1026
f8c18cd7
BC
1027 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1028
6cea494e 1029 sc->sample_to_chunk_sz = entries;
e23848a4 1030 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t));
b6a17df4
ZK
1031 if (!sc->sample_to_chunk)
1032 return -1;
6cea494e
ZK
1033 for(i=0; i<entries; i++) {
1034 sc->sample_to_chunk[i].first = get_be32(pb);
1035 sc->sample_to_chunk[i].count = get_be32(pb);
1036 sc->sample_to_chunk[i].id = get_be32(pb);
6cea494e
ZK
1037 }
1038 return 0;
1039}
1040
247d56f5
BB
1041static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1042{
1043 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1044 MOVStreamContext *sc = st->priv_data;
568e18b1 1045 unsigned int i, entries;
247d56f5 1046
247d56f5 1047 get_byte(pb); /* version */
23f08617 1048 get_be24(pb); /* flags */
247d56f5
BB
1049
1050 entries = get_be32(pb);
115329f1 1051
1c02d96f 1052 if(entries >= UINT_MAX / sizeof(int))
568e18b1 1053 return -1;
115329f1 1054
247d56f5 1055 sc->keyframe_count = entries;
f8c18cd7
BC
1056
1057 dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count);
1058
1c02d96f 1059 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5
BB
1060 if (!sc->keyframes)
1061 return -1;
1062 for(i=0; i<entries; i++) {
1063 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1064 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1065 }
1066 return 0;
1067}
1068
5ca1d879 1069static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 1070{
5ca1d879 1071 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1072 MOVStreamContext *sc = st->priv_data;
b72708f8 1073 unsigned int i, entries, sample_size;
b6a17df4 1074
6cea494e 1075 get_byte(pb); /* version */
23f08617 1076 get_be24(pb); /* flags */
5cd62665 1077
b72708f8
BC
1078 sample_size = get_be32(pb);
1079 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1080 sc->sample_size = sample_size;
6cea494e 1081 entries = get_be32(pb);
1c02d96f 1082 if(entries >= UINT_MAX / sizeof(int))
568e18b1
MN
1083 return -1;
1084
6cea494e 1085 sc->sample_count = entries;
b72708f8
BC
1086 if (sample_size)
1087 return 0;
1088
f8c18cd7
BC
1089 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1090
1c02d96f 1091 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4
ZK
1092 if (!sc->sample_sizes)
1093 return -1;
eb61405a 1094 for(i=0; i<entries; i++)
6cea494e 1095 sc->sample_sizes[i] = get_be32(pb);
6cea494e
ZK
1096 return 0;
1097}
1098
5ca1d879 1099static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1100{
5ca1d879 1101 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1102 MOVStreamContext *sc = st->priv_data;
568e18b1 1103 unsigned int i, entries;
d957696f
MN
1104 int64_t duration=0;
1105 int64_t total_sample_count=0;
b6a17df4 1106
0147f198 1107 get_byte(pb); /* version */
23f08617 1108 get_be24(pb); /* flags */
0147f198 1109 entries = get_be32(pb);
e23848a4 1110 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
568e18b1 1111 return -1;
891f64b3 1112
cd7352d5 1113 sc->stts_count = entries;
e23848a4 1114 sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1115 if (!sc->stts_data)
1116 return -1;
f8c18cd7 1117 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
cd7352d5
MN
1118
1119 sc->time_rate=0;
1120
0147f198 1121 for(i=0; i<entries; i++) {
cd461d48
MN
1122 int sample_duration;
1123 int sample_count;
0147f198 1124
891f64b3 1125 sample_count=get_be32(pb);
0147f198 1126 sample_duration = get_be32(pb);
cd7352d5
MN
1127 sc->stts_data[i].count= sample_count;
1128 sc->stts_data[i].duration= sample_duration;
1129
1130 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
961e0ccd 1131
318c5e05 1132 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1133
7e815047 1134 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1135 total_sample_count+=sample_count;
891f64b3 1136 }
1137
961e0ccd
MN
1138 st->nb_frames= total_sample_count;
1139 if(duration)
1140 st->duration= duration;
0147f198
FR
1141 return 0;
1142}
1143
c4ac052b
MN
1144static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1145{
70a61ed4 1146 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1147 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1148 unsigned int i, entries;
1149
c4ac052b 1150 get_byte(pb); /* version */
23f08617 1151 get_be24(pb); /* flags */
c4ac052b 1152 entries = get_be32(pb);
e23848a4 1153 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
c4ac052b
MN
1154 return -1;
1155
70a61ed4 1156 sc->ctts_count = entries;
e23848a4 1157 sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1158 if (!sc->ctts_data)
1159 return -1;
318c5e05 1160 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
4e5ef14f 1161
c4ac052b 1162 for(i=0; i<entries; i++) {
70a61ed4
MN
1163 int count =get_be32(pb);
1164 int duration =get_be32(pb);
1165
b0519015 1166 if (duration < 0) {
138568e9 1167 av_log(c->fc, AV_LOG_WARNING, "negative ctts, ignoring\n");
b0519015
BC
1168 sc->ctts_count = 0;
1169 url_fskip(pb, 8 * (entries - i - 1));
1170 break;
1171 }
70a61ed4
MN
1172 sc->ctts_data[i].count = count;
1173 sc->ctts_data[i].duration= duration;
1174
1175 sc->time_rate= ff_gcd(sc->time_rate, duration);
c4ac052b
MN
1176 }
1177 return 0;
1178}
1179
1e77810d
BC
1180static void mov_build_index(MOVContext *mov, AVStream *st)
1181{
1182 MOVStreamContext *sc = st->priv_data;
1183 offset_t current_offset;
1184 int64_t current_dts = 0;
1185 unsigned int stts_index = 0;
1186 unsigned int stsc_index = 0;
1187 unsigned int stss_index = 0;
1188 unsigned int i, j;
1189
d3bc61ac
BC
1190 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1191 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1192 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1193 unsigned int current_sample = 0;
1194 unsigned int stts_sample = 0;
1195 unsigned int keyframe, sample_size;
1196 unsigned int distance = 0;
1197 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1198
1199 st->nb_frames = sc->sample_count;
1200 for (i = 0; i < sc->chunk_count; i++) {
1201 current_offset = sc->chunk_offsets[i];
1202 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1203 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1204 stsc_index++;
1205 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1206 if (current_sample >= sc->sample_count) {
1207 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1208 goto out;
1209 }
1210 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1211 if (keyframe) {
1212 distance = 0;
1213 if (stss_index + 1 < sc->keyframe_count)
1214 stss_index++;
1215 }
1216 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
978677a7 1217 if(sc->pseudo_stream_id == -1 ||
585dac65 1218 sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id) {
1e77810d
BC
1219 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1220 keyframe ? AVINDEX_KEYFRAME : 0);
585dac65
BC
1221 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1222 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1223 current_offset, current_dts, sample_size, distance, keyframe);
1224 }
1e77810d
BC
1225 current_offset += sample_size;
1226 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1227 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1228 distance++;
1229 stts_sample++;
1230 current_sample++;
1231 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1232 stts_sample = 0;
1233 stts_index++;
1234 }
1235 }
1236 }
1237 } else { /* read whole chunk */
1238 unsigned int chunk_samples, chunk_size, chunk_duration;
1239 unsigned int frames = 1;
1240 for (i = 0; i < sc->chunk_count; i++) {
1241 current_offset = sc->chunk_offsets[i];
1242 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1243 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1244 stsc_index++;
1245 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1246 /* get chunk size, beware of alaw/ulaw/mace */
1247 if (sc->samples_per_frame > 0 &&
1248 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
3b8c000d 1249 if (sc->samples_per_frame < 160)
1e77810d
BC
1250 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1251 else {
1252 chunk_size = sc->bytes_per_frame;
1253 frames = chunk_samples / sc->samples_per_frame;
1254 chunk_samples = sc->samples_per_frame;
1255 }
48a55290 1256 } else
1e77810d 1257 chunk_size = chunk_samples * sc->sample_size;
1e77810d
BC
1258 for (j = 0; j < frames; j++) {
1259 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1260 /* get chunk duration */
1261 chunk_duration = 0;
1262 while (chunk_samples > 0) {
1263 if (chunk_samples < sc->stts_data[stts_index].count) {
1264 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1265 sc->stts_data[stts_index].count -= chunk_samples;
1266 break;
1267 } else {
1268 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1269 chunk_samples -= sc->stts_data[stts_index].count;
1270 if (stts_index + 1 < sc->stts_count)
1271 stts_index++;
1272 }
1273 }
1274 current_offset += sc->bytes_per_frame;
117a9190
BC
1275 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1276 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1277 chunk_size, chunk_duration);
1e77810d
BC
1278 assert(chunk_duration % sc->time_rate == 0);
1279 current_dts += chunk_duration / sc->time_rate;
1280 }
1281 }
1282 }
1283 out:
1284 /* adjust sample count to avindex entries */
1285 sc->sample_count = st->nb_index_entries;
1286}
bd991df2 1287
5ca1d879
ZK
1288static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1289{
1290 AVStream *st;
1291 MOVStreamContext *sc;
bd991df2 1292 int ret;
5ca1d879 1293
5ca1d879 1294 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1295 if (!st) return AVERROR(ENOMEM);
9a630c25 1296 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1297 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1298
5ca1d879 1299 st->priv_data = sc;
05edc1a7 1300 st->codec->codec_type = CODEC_TYPE_DATA;
25c4950e 1301 st->start_time = 0; /* XXX: check */
5ca1d879 1302
bd991df2
BC
1303 if ((ret = mov_read_default(c, pb, atom)) < 0)
1304 return ret;
1305
1306 /* sanity checks */
5e788d58
BC
1307 if(sc->chunk_count && (!sc->stts_count || !sc->sample_to_chunk_sz ||
1308 (!sc->sample_size && !sc->sample_count))){
6282c5f4
BC
1309 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1310 st->index);
bd991df2
BC
1311 sc->sample_count = 0; //ignore track
1312 return 0;
1313 }
1314 if(!sc->time_rate)
1315 sc->time_rate=1;
1316 if(!sc->time_scale)
1317 sc->time_scale= c->time_scale;
1318 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1319
3f78a3a9
BC
1320 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
1321 !st->codec->frame_size && sc->stts_count == 1)
bd991df2
BC
1322 st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale);
1323
1324 if(st->duration != AV_NOPTS_VALUE){
1325 assert(st->duration % sc->time_rate == 0);
1326 st->duration /= sc->time_rate;
1327 }
1328 sc->ffindex = st->index;
1329 mov_build_index(c, st);
1330
1331 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1332 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
9e81a0ce
BC
1333 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1334 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
bd991df2
BC
1335 } else
1336 sc->pb = c->fc->pb;
1337
1338 switch (st->codec->codec_id) {
1339#ifdef CONFIG_H261_DECODER
1340 case CODEC_ID_H261:
1341#endif
1342#ifdef CONFIG_H263_DECODER
1343 case CODEC_ID_H263:
1344#endif
1345#ifdef CONFIG_MPEG4_DECODER
1346 case CODEC_ID_MPEG4:
1347#endif
1348 st->codec->width= 0; /* let decoder init width/height */
1349 st->codec->height= 0;
1350 break;
bd991df2
BC
1351#ifdef CONFIG_VORBIS_DECODER
1352 case CODEC_ID_VORBIS:
1353#endif
bd991df2
BC
1354 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1355 break;
1356 }
f9900374
BC
1357
1358 /* Do not need those anymore. */
1359 av_freep(&sc->chunk_offsets);
1360 av_freep(&sc->sample_to_chunk);
1361 av_freep(&sc->sample_sizes);
1362 av_freep(&sc->keyframes);
1363 av_freep(&sc->stts_data);
1364
bd991df2 1365 return 0;
5ca1d879
ZK
1366}
1367
d2ace376
BF
1368static void mov_parse_udta_string(ByteIOContext *pb, char *str, int size)
1369{
1370 uint16_t str_size = get_be16(pb); /* string length */;
1371
1372 get_be16(pb); /* skip language */
1373 get_buffer(pb, str, FFMIN(size, str_size));
1374}
1375
1376static int mov_read_udta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1377{
1378 uint64_t end = url_ftell(pb) + atom.size;
1379
1380 while (url_ftell(pb) + 8 < end) {
1381 uint32_t tag_size = get_be32(pb);
1382 uint32_t tag = get_le32(pb);
1383 uint64_t next = url_ftell(pb) + tag_size - 8;
1384
aaac6c29
BC
1385 if (next > end) // stop if tag_size is wrong
1386 break;
1387
d2ace376
BF
1388 switch (tag) {
1389 case MKTAG(0xa9,'n','a','m'):
1390 mov_parse_udta_string(pb, c->fc->title, sizeof(c->fc->title));
1391 break;
1392 case MKTAG(0xa9,'w','r','t'):
1393 mov_parse_udta_string(pb, c->fc->author, sizeof(c->fc->author));
1394 break;
1395 case MKTAG(0xa9,'c','p','y'):
1396 mov_parse_udta_string(pb, c->fc->copyright, sizeof(c->fc->copyright));
1397 break;
1398 case MKTAG(0xa9,'i','n','f'):
1399 mov_parse_udta_string(pb, c->fc->comment, sizeof(c->fc->comment));
1400 break;
1401 default:
1402 break;
1403 }
1404
1405 url_fseek(pb, next, SEEK_SET);
1406 }
1407
1408 return 0;
1409}
1410
5ca1d879
ZK
1411static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1412{
ec072669
JS
1413 int i;
1414 int width;
1415 int height;
1416 int64_t disp_transform[2];
1417 int display_matrix[3][2];
f444b977
BC
1418 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1419 int version = get_byte(pb);
5ca1d879 1420
23f08617 1421 get_be24(pb); /* flags */
5ca1d879
ZK
1422 /*
1423 MOV_TRACK_ENABLED 0x0001
1424 MOV_TRACK_IN_MOVIE 0x0002
1425 MOV_TRACK_IN_PREVIEW 0x0004
1426 MOV_TRACK_IN_POSTER 0x0008
1427 */
1428
1175561e
BC
1429 if (version == 1) {
1430 get_be64(pb);
1431 get_be64(pb);
1432 } else {
1433 get_be32(pb); /* creation time */
1434 get_be32(pb); /* modification time */
1435 }
5ca1d879
ZK
1436 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1437 get_be32(pb); /* reserved */
25c4950e 1438 st->start_time = 0; /* check */
117a9190
BC
1439 /* highlevel (considering edits) duration in movie timebase */
1440 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1441 get_be32(pb); /* reserved */
1442 get_be32(pb); /* reserved */
1443
1444 get_be16(pb); /* layer */
1445 get_be16(pb); /* alternate group */
1446 get_be16(pb); /* volume */
1447 get_be16(pb); /* reserved */
1448
ec072669
JS
1449 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1450 // they're kept in fixed point format through all calculations
1451 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1452 for (i = 0; i < 3; i++) {
1453 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1454 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1455 get_be32(pb); // 2.30 fixed point (not used)
1456 }
5ca1d879 1457
ec072669
JS
1458 width = get_be32(pb); // 16.16 fixed point track width
1459 height = get_be32(pb); // 16.16 fixed point track height
1460
1461 //transform the display width/height according to the matrix
1462 // skip this if the display matrix is the default identity matrix
1463 // to keep the same scale, use [width height 1<<16]
1464 if (width && height &&
1465 (display_matrix[0][0] != 65536 || display_matrix[0][1] ||
1466 display_matrix[1][0] || display_matrix[1][1] != 65536 ||
1467 display_matrix[2][0] || display_matrix[2][1])) {
1468 for (i = 0; i < 2; i++)
1469 disp_transform[i] =
1470 (int64_t) width * display_matrix[0][i] +
1471 (int64_t) height * display_matrix[1][i] +
1472 ((int64_t) display_matrix[2][i] << 16);
1473
1474 //sample aspect ratio is new width/height divided by old width/height
1475 st->codec->sample_aspect_ratio = av_d2q(
1476 ((double) disp_transform[0] * height) /
1477 ((double) disp_transform[1] * width), INT_MAX);
1478 }
5ca1d879
ZK
1479 return 0;
1480}
1481
61aedb0f
BC
1482static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1483{
1484 MOVFragment *frag = &c->fragment;
1485 MOVTrackExt *trex = NULL;
1486 int flags, track_id, i;
1487
1488 get_byte(pb); /* version */
1489 flags = get_be24(pb);
1490
1491 track_id = get_be32(pb);
1492 if (!track_id || track_id > c->fc->nb_streams)
1493 return -1;
1494 frag->track_id = track_id;
1495 for (i = 0; i < c->trex_count; i++)
1496 if (c->trex_data[i].track_id == frag->track_id) {
1497 trex = &c->trex_data[i];
1498 break;
1499 }
1500 if (!trex) {
1501 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1502 return -1;
1503 }
1504
1505 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1506 else frag->base_data_offset = frag->moof_offset;
1507 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1508 else frag->stsd_id = trex->stsd_id;
1509
1510 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1511 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1512 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1513 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1514 return 0;
1515}
1516
1517static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1518{
1519 MOVTrackExt *trex;
1520
1521 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1522 return -1;
1523 c->trex_data = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1524 if (!c->trex_data)
1525 return AVERROR(ENOMEM);
1526 trex = &c->trex_data[c->trex_count++];
1527 get_byte(pb); /* version */
1528 get_be24(pb); /* flags */
1529 trex->track_id = get_be32(pb);
1530 trex->stsd_id = get_be32(pb);
1531 trex->duration = get_be32(pb);
1532 trex->size = get_be32(pb);
1533 trex->flags = get_be32(pb);
1534 return 0;
1535}
1536
1537static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1538{
1539 MOVFragment *frag = &c->fragment;
44e43aab
BC
1540 AVStream *st;
1541 MOVStreamContext *sc;
61aedb0f
BC
1542 uint64_t offset;
1543 int64_t dts;
1544 int data_offset = 0;
1545 unsigned entries, first_sample_flags = frag->flags;
1546 int flags, distance, i;
1547
44e43aab
BC
1548 if (!frag->track_id || frag->track_id > c->fc->nb_streams)
1549 return -1;
1550 st = c->fc->streams[frag->track_id-1];
1551 sc = st->priv_data;
61aedb0f
BC
1552 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1553 return 0;
61aedb0f
BC
1554 get_byte(pb); /* version */
1555 flags = get_be24(pb);
1556 entries = get_be32(pb);
1557 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1558 if (flags & 0x001) data_offset = get_be32(pb);
1559 if (flags & 0x004) first_sample_flags = get_be32(pb);
1560 if (flags & 0x800) {
1561 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1562 return -1;
1563 sc->ctts_data = av_realloc(sc->ctts_data,
1564 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1565 if (!sc->ctts_data)
1566 return AVERROR(ENOMEM);
1567 }
1568 dts = st->duration;
1569 offset = frag->base_data_offset + data_offset;
1570 distance = 0;
1571 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1572 for (i = 0; i < entries; i++) {
1573 unsigned sample_size = frag->size;
1574 int sample_flags = i ? frag->flags : first_sample_flags;
1575 unsigned sample_duration = frag->duration;
1576 int keyframe;
1577
1578 if (flags & 0x100) sample_duration = get_be32(pb);
1579 if (flags & 0x200) sample_size = get_be32(pb);
1580 if (flags & 0x400) sample_flags = get_be32(pb);
1581 if (flags & 0x800) {
1582 sc->ctts_data[sc->ctts_count].count = 1;
1583 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1584 sc->ctts_count++;
1585 }
1586 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1587 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1588 distance = 0;
1589 av_add_index_entry(st, offset, dts, sample_size, distance,
1590 keyframe ? AVINDEX_KEYFRAME : 0);
1591 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1592 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1593 offset, dts, sample_size, distance, keyframe);
1594 distance++;
1595 assert(sample_duration % sc->time_rate == 0);
1596 dts += sample_duration / sc->time_rate;
1597 offset += sample_size;
1598 }
1599 frag->moof_offset = offset;
1600 sc->sample_count = st->nb_index_entries;
1601 st->duration = dts;
1602 return 0;
1603}
1604
5ca1d879
ZK
1605/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1606/* like the files created with Adobe Premiere 5.0, for samples see */
1607/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1608static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1609{
1610 int err;
5ca1d879 1611
5ca1d879
ZK
1612 if (atom.size < 8)
1613 return 0; /* continue */
1614 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1615 url_fskip(pb, atom.size - 4);
1616 return 0;
1617 }
1618 atom.type = get_le32(pb);
1619 atom.offset += 8;
1620 atom.size -= 8;
1c126b4f 1621 if (atom.type != MKTAG('m','d','a','t')) {
5ca1d879
ZK
1622 url_fskip(pb, atom.size);
1623 return 0;
1624 }
1625 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1626 return err;
1627}
1628
5ca1d879 1629static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1630{
d966b2f0 1631#ifdef CONFIG_ZLIB
0147f198 1632 ByteIOContext ctx;
b6a17df4
ZK
1633 uint8_t *cmov_data;
1634 uint8_t *moov_data; /* uncompressed data */
0147f198 1635 long cmov_len, moov_len;
6f04eb1e 1636 int ret = -1;
b6a17df4 1637
0147f198 1638 get_be32(pb); /* dcom atom */
1c126b4f 1639 if (get_le32(pb) != MKTAG('d','c','o','m'))
0147f198 1640 return -1;
1c126b4f 1641 if (get_le32(pb) != MKTAG('z','l','i','b')) {
4e5ef14f 1642 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1643 return -1;
1644 }
1645 get_be32(pb); /* cmvd atom */
1c126b4f 1646 if (get_le32(pb) != MKTAG('c','m','v','d'))
0147f198
FR
1647 return -1;
1648 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1649 cmov_len = atom.size - 6 * 4;
5cd62665 1650
9a630c25 1651 cmov_data = av_malloc(cmov_len);
0147f198
FR
1652 if (!cmov_data)
1653 return -1;
9a630c25 1654 moov_data = av_malloc(moov_len);
0147f198
FR
1655 if (!moov_data) {
1656 av_free(cmov_data);
1657 return -1;
1658 }
1659 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1660 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
6f04eb1e 1661 goto free_and_return;
942f3bb5 1662 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
6f04eb1e 1663 goto free_and_return;
1c126b4f 1664 atom.type = MKTAG('m','o','o','v');
5ca1d879
ZK
1665 atom.offset = 0;
1666 atom.size = moov_len;
9ed83b0a 1667#ifdef DEBUG
dbb4f00a 1668// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1669#endif
5ca1d879 1670 ret = mov_read_default(c, &ctx, atom);
6f04eb1e 1671free_and_return:
0147f198
FR
1672 av_free(moov_data);
1673 av_free(cmov_data);
1674 return ret;
d966b2f0
BC
1675#else
1676 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1677 return -1;
0147f198 1678#endif
d966b2f0 1679}
0147f198 1680
baf25c9d
GC
1681/* edit list atom */
1682static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1683{
7c622eed 1684 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1685 int i, edit_count;
1686
1687 get_byte(pb); /* version */
23f08617 1688 get_be24(pb); /* flags */
7c622eed 1689 edit_count= sc->edit_count = get_be32(pb); /* entries */
e0977c80
BC
1690
1691 for(i=0; i<edit_count; i++){
d435e520 1692 int time;
e0977c80 1693 get_be32(pb); /* Track duration */
d435e520 1694 time = get_be32(pb); /* Media time */
e0977c80 1695 get_be32(pb); /* Media rate */
d435e520
BC
1696 if (time != 0)
1697 av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, "
1698 "a/v desync might occur, patch welcome\n");
e0977c80 1699 }
7c622eed 1700 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count);
e0977c80 1701 return 0;
baf25c9d
GC
1702}
1703
6cea494e 1704static const MOVParseTableEntry mov_default_parse_table[] = {
d4fdba0d 1705{ MKTAG('a','v','s','s'), mov_read_extradata },
1c126b4f
BC
1706{ MKTAG('c','o','6','4'), mov_read_stco },
1707{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1708{ MKTAG('d','i','n','f'), mov_read_default },
1709{ MKTAG('d','r','e','f'), mov_read_dref },
1710{ MKTAG('e','d','t','s'), mov_read_default },
1711{ MKTAG('e','l','s','t'), mov_read_elst },
1712{ MKTAG('e','n','d','a'), mov_read_enda },
1713{ MKTAG('f','i','e','l'), mov_read_extradata },
1714{ MKTAG('f','t','y','p'), mov_read_ftyp },
1715{ MKTAG('g','l','b','l'), mov_read_glbl },
1716{ MKTAG('h','d','l','r'), mov_read_hdlr },
1717{ MKTAG('j','p','2','h'), mov_read_extradata },
1718{ MKTAG('m','d','a','t'), mov_read_mdat },
1719{ MKTAG('m','d','h','d'), mov_read_mdhd },
1720{ MKTAG('m','d','i','a'), mov_read_default },
1721{ MKTAG('m','i','n','f'), mov_read_default },
1722{ MKTAG('m','o','o','f'), mov_read_moof },
1723{ MKTAG('m','o','o','v'), mov_read_moov },
1724{ MKTAG('m','v','e','x'), mov_read_default },
1725{ MKTAG('m','v','h','d'), mov_read_mvhd },
1726{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1727{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1728{ MKTAG('a','v','c','C'), mov_read_glbl },
1729{ MKTAG('s','t','b','l'), mov_read_default },
1730{ MKTAG('s','t','c','o'), mov_read_stco },
1731{ MKTAG('s','t','s','c'), mov_read_stsc },
1732{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1733{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1734{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1735{ MKTAG('s','t','t','s'), mov_read_stts },
1736{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1737{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1738{ MKTAG('t','r','a','k'), mov_read_trak },
1739{ MKTAG('t','r','a','f'), mov_read_default },
1740{ MKTAG('t','r','e','x'), mov_read_trex },
1741{ MKTAG('t','r','u','n'), mov_read_trun },
1742{ MKTAG('u','d','t','a'), mov_read_udta },
1743{ MKTAG('w','a','v','e'), mov_read_wave },
1744{ MKTAG('e','s','d','s'), mov_read_esds },
1745{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1746{ MKTAG('c','m','o','v'), mov_read_cmov },
bcfe2ba0 1747{ 0, NULL }
6cea494e
ZK
1748};
1749
c9a65ca8
FB
1750static int mov_probe(AVProbeData *p)
1751{
0e7eed09
FB
1752 unsigned int offset;
1753 uint32_t tag;
2497479f 1754 int score = 0;
3ffe3793 1755
c9a65ca8 1756 /* check file header */
0e7eed09
FB
1757 offset = 0;
1758 for(;;) {
1759 /* ignore invalid offset */
1760 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1761 return score;
fead30d4 1762 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1763 switch(tag) {
2497479f 1764 /* check for obvious tags */
1c126b4f
BC
1765 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
1766 case MKTAG('m','o','o','v'):
1767 case MKTAG('m','d','a','t'):
1768 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
1769 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
40e7aaa3 1770 case MKTAG('f','t','y','p'):
3ffe3793 1771 return AVPROBE_SCORE_MAX;
2497479f 1772 /* those are more common words, so rate then a bit less */
1c126b4f
BC
1773 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
1774 case MKTAG('w','i','d','e'):
1775 case MKTAG('f','r','e','e'):
1776 case MKTAG('j','u','n','k'):
1777 case MKTAG('p','i','c','t'):
2497479f 1778 return AVPROBE_SCORE_MAX - 5;
5469b788 1779 case MKTAG(0x82,0x82,0x7f,0x7d):
1c126b4f
BC
1780 case MKTAG('s','k','i','p'):
1781 case MKTAG('u','u','i','d'):
1782 case MKTAG('p','r','f','l'):
fead30d4 1783 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1784 /* if we only find those cause probedata is too small at least rate them */
1785 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1786 break;
1787 default:
1788 /* unrecognized tag */
2497479f 1789 return score;
0e7eed09 1790 }
3ffe3793 1791 }
2497479f 1792 return score;
c9a65ca8
FB
1793}
1794
a266644f 1795static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1796{
e4141433 1797 MOVContext *mov = s->priv_data;
899681cd 1798 ByteIOContext *pb = s->pb;
f9900374 1799 int err;
5ca1d879 1800 MOV_atom_t atom = { 0, 0, 0 };
6cea494e 1801
6cea494e 1802 mov->fc = s;
117a9190
BC
1803 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1804 if(!url_is_streamed(pb))
bb270c08 1805 atom.size = url_fsize(pb);
6cea494e 1806 else
fa22ca22 1807 atom.size = INT64_MAX;
6cea494e 1808
6cea494e 1809 /* check MOV header */
612b5cbb
BC
1810 if ((err = mov_read_default(mov, pb, atom)) < 0) {
1811 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1812 return err;
1813 }
1814 if (!mov->found_moov) {
1815 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 1816 return -1;
6cea494e 1817 }
0265fe81 1818 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 1819
6cea494e
ZK
1820 return 0;
1821}
1822
a266644f 1823static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1824{
b72708f8
BC
1825 MOVContext *mov = s->priv_data;
1826 MOVStreamContext *sc = 0;
1827 AVIndexEntry *sample = 0;
86d8602f 1828 int64_t best_dts = INT64_MAX;
b72708f8 1829 int i;
433aeb62 1830 retry:
11f16b66 1831 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1832 AVStream *st = s->streams[i];
1833 MOVStreamContext *msc = st->priv_data;
221e21b7 1834 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < msc->sample_count) {
7c622eed 1835 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1836 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1837 AV_TIME_BASE, msc->time_scale);
1c02d96f 1838 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1839 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1840 (!url_is_streamed(s->pb) &&
221e21b7 1841 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1842 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1843 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1844 sample = current_sample;
1845 best_dts = dts;
1846 sc = msc;
86d8602f 1847 }
6cea494e 1848 }
6cea494e 1849 }
433aeb62
BC
1850 if (!sample) {
1851 mov->found_mdat = 0;
1852 if (!url_is_streamed(s->pb) ||
1853 mov_read_default(mov, s->pb, (MOV_atom_t){ 0, 0, INT64_MAX }) < 0 ||
1854 url_feof(s->pb))
1855 return -1;
1856 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1857 goto retry;
1858 }
b72708f8
BC
1859 /* must be done just before reading, to avoid infinite loop on sample */
1860 sc->current_sample++;
221e21b7 1861 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1862 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1863 sc->ffindex, sample->pos);
bb270c08 1864 return -1;
6cea494e 1865 }
221e21b7 1866 av_get_packet(sc->pb, pkt, sample->size);
312954f0 1867#ifdef CONFIG_DV_DEMUXER
56ea717b
BC
1868 if (mov->dv_demux && sc->dv_audio_container) {
1869 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1870 av_free(pkt->data);
300aa2b0
BC
1871 pkt->size = 0;
1872 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1873 return -1;
56ea717b 1874 }
312954f0 1875#endif
b72708f8
BC
1876 pkt->stream_index = sc->ffindex;
1877 pkt->dts = sample->timestamp;
1878 if (sc->ctts_data) {
1879 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1880 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1881 /* update ctts context */
1882 sc->sample_to_ctime_sample++;
29c90869
BC
1883 if (sc->sample_to_ctime_index < sc->ctts_count &&
1884 sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
b72708f8
BC
1885 sc->sample_to_ctime_index++;
1886 sc->sample_to_ctime_sample = 0;
b565ea09 1887 }
b72708f8 1888 } else {
e8430214
HG
1889 AVStream *st = s->streams[sc->ffindex];
1890 int64_t next_dts = (sc->current_sample < sc->sample_count) ?
1891 st->index_entries[sc->current_sample].timestamp : st->duration;
1892 pkt->duration = next_dts - pkt->dts;
b72708f8 1893 pkt->pts = pkt->dts;
b565ea09 1894 }
b72708f8
BC
1895 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1896 pkt->pos = sample->pos;
29c90869
BC
1897 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1898 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1899 return 0;
1900}
3ffe3793 1901
b72708f8
BC
1902static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1903{
1904 MOVStreamContext *sc = st->priv_data;
1905 int sample, time_sample;
1906 int i;
115329f1 1907
b72708f8 1908 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1909 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1910 if (sample < 0) /* not sure what to do */
1911 return -1;
1912 sc->current_sample = sample;
1c02d96f 1913 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1914 /* adjust ctts index */
1915 if (sc->ctts_data) {
1916 time_sample = 0;
1917 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1918 int next = time_sample + sc->ctts_data[i].count;
1919 if (next > sc->current_sample) {
b72708f8 1920 sc->sample_to_ctime_index = i;
54a5c719 1921 sc->sample_to_ctime_sample = sc->current_sample - time_sample;
b72708f8 1922 break;
115329f1 1923 }
54a5c719 1924 time_sample = next;
247d56f5 1925 }
247d56f5 1926 }
b72708f8 1927 return sample;
6cea494e
ZK
1928}
1929
961e0ccd 1930static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1931{
b72708f8
BC
1932 AVStream *st;
1933 int64_t seek_timestamp, timestamp;
1934 int sample;
1935 int i;
baf25c9d 1936
b72708f8 1937 if (stream_index >= s->nb_streams)
baf25c9d 1938 return -1;
baf25c9d 1939
b72708f8
BC
1940 st = s->streams[stream_index];
1941 sample = mov_seek_stream(st, sample_time, flags);
1942 if (sample < 0)
baf25c9d 1943 return -1;
baf25c9d 1944
b72708f8
BC
1945 /* adjust seek timestamp to found sample timestamp */
1946 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 1947
b72708f8
BC
1948 for (i = 0; i < s->nb_streams; i++) {
1949 st = s->streams[i];
1950 if (stream_index == i || st->discard == AVDISCARD_ALL)
1951 continue;
baf25c9d 1952
b72708f8
BC
1953 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1954 mov_seek_stream(st, timestamp, flags);
115329f1 1955 }
baf25c9d
GC
1956 return 0;
1957}
baf25c9d 1958
a266644f 1959static int mov_read_close(AVFormatContext *s)
6cea494e 1960{
221e21b7 1961 int i, j;
e4141433 1962 MOVContext *mov = s->priv_data;
11f16b66 1963 for(i=0; i<s->nb_streams; i++) {
7c622eed
BC
1964 MOVStreamContext *sc = s->streams[i]->priv_data;
1965 av_freep(&sc->ctts_data);
221e21b7
BC
1966 for (j=0; j<sc->drefs_count; j++)
1967 av_freep(&sc->drefs[j].path);
1968 av_freep(&sc->drefs);
1969 if (sc->pb && sc->pb != s->pb)
1970 url_fclose(sc->pb);
4440b118 1971 }
b60c0454
BC
1972 if(mov->dv_demux){
1973 for(i=0; i<mov->dv_fctx->nb_streams; i++){
1974 av_freep(&mov->dv_fctx->streams[i]->codec);
1975 av_freep(&mov->dv_fctx->streams[i]);
1976 }
1977 av_freep(&mov->dv_fctx);
1978 av_freep(&mov->dv_demux);
1979 }
61aedb0f 1980 av_freep(&mov->trex_data);
6cea494e
ZK
1981 return 0;
1982}
1983
ff70e601 1984AVInputFormat mov_demuxer = {
fc5188f3 1985 "mov,mp4,m4a,3gp,3g2,mj2",
bde15e74 1986 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
c9a65ca8
FB
1987 sizeof(MOVContext),
1988 mov_probe,
6cea494e
ZK
1989 mov_read_header,
1990 mov_read_packet,
1991 mov_read_close,
baf25c9d 1992 mov_read_seek,
6cea494e 1993};