3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of Libav.
11 * Libav is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * Libav is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/intfloat.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/time_internal.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/dict.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/ac3tab.h"
42 #include "avio_internal.h"
45 #include "libavcodec/get_bits.h"
48 #include "replaygain.h"
54 #include "qtpalette.h"
60 /* those functions parse an atom */
61 /* links atom IDs to parse functions */
62 typedef struct MOVParseTableEntry {
64 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
67 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
69 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
70 unsigned len, const char *key)
74 short current, total = 0;
75 avio_rb16(pb); // unknown
76 current = avio_rb16(pb);
78 total = avio_rb16(pb);
80 snprintf(buf, sizeof(buf), "%d", current);
82 snprintf(buf, sizeof(buf), "%d/%d", current, total);
83 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
84 av_dict_set(&c->fc->metadata, key, buf, 0);
89 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
90 unsigned len, const char *key)
94 /* bypass padding bytes */
99 snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
100 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
101 av_dict_set(&c->fc->metadata, key, buf, 0);
106 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
107 unsigned len, const char *key)
111 snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
112 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
113 av_dict_set(&c->fc->metadata, key, buf, 0);
118 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
119 unsigned len, const char *key)
124 avio_r8(pb); // unknown
127 if (genre < 1 || genre > ID3v1_GENRE_MAX)
129 snprintf(buf, sizeof(buf), "%s", ff_id3v1_genre_str[genre-1]);
130 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
131 av_dict_set(&c->fc->metadata, key, buf, 0);
136 static const uint32_t mac_to_unicode[128] = {
137 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
138 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
139 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
140 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
141 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
142 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
143 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
144 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
145 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
146 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
147 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
148 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
149 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
150 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
151 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
152 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
155 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
156 char *dst, int dstlen)
159 char *end = dst+dstlen-1;
162 for (i = 0; i < len; i++) {
163 uint8_t t, c = avio_r8(pb);
164 if (c < 0x80 && p < end)
167 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
173 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
177 MOVStreamContext *sc;
182 case 0xd: id = AV_CODEC_ID_MJPEG; break;
183 case 0xe: id = AV_CODEC_ID_PNG; break;
184 case 0x1b: id = AV_CODEC_ID_BMP; break;
186 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
191 st = avformat_new_stream(c->fc, NULL);
193 return AVERROR(ENOMEM);
194 sc = av_mallocz(sizeof(*sc));
196 return AVERROR(ENOMEM);
199 ret = av_get_packet(pb, &pkt, len);
203 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
205 st->attached_pic = pkt;
206 st->attached_pic.stream_index = st->index;
207 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
209 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
210 st->codec->codec_id = id;
215 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
217 char language[4] = { 0 };
219 uint16_t langcode = 0;
220 double longitude, latitude;
221 const char *key = "location";
223 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
224 return AVERROR_INVALIDDATA;
226 avio_skip(pb, 4); // version+flags
227 langcode = avio_rb16(pb);
228 ff_mov_lang_to_iso639(langcode, language);
231 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
233 return AVERROR_INVALIDDATA;
234 avio_skip(pb, 1); // role
238 return AVERROR_INVALIDDATA;
239 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
240 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
242 // Try to output in the same format as the ?xyz field
243 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
244 if (*language && strcmp(language, "und")) {
246 snprintf(key2, sizeof(key2), "%s-%s", key, language);
247 av_dict_set(&c->fc->metadata, key2, buf, 0);
249 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
250 return av_dict_set(&c->fc->metadata, key, buf, 0);
253 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
256 char *str, key2[32], language[4] = {0};
257 const char *key = NULL;
258 uint16_t langcode = 0;
259 uint32_t data_type = 0, str_size, str_size_alloc;
260 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
264 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
265 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
266 case MKTAG( 'X','M','P','_'):
267 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
268 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
269 case MKTAG( 'a','k','I','D'): key = "account_type";
270 parse = mov_metadata_int8_no_padding; break;
271 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
272 case MKTAG( 'c','a','t','g'): key = "category"; break;
273 case MKTAG( 'c','p','i','l'): key = "compilation";
274 parse = mov_metadata_int8_no_padding; break;
275 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
276 case MKTAG( 'd','e','s','c'): key = "description"; break;
277 case MKTAG( 'd','i','s','k'): key = "disc";
278 parse = mov_metadata_track_or_disc_number; break;
279 case MKTAG( 'e','g','i','d'): key = "episode_uid";
280 parse = mov_metadata_int8_no_padding; break;
281 case MKTAG( 'g','n','r','e'): key = "genre";
282 parse = mov_metadata_gnre; break;
283 case MKTAG( 'h','d','v','d'): key = "hd_video";
284 parse = mov_metadata_int8_no_padding; break;
285 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
286 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
287 case MKTAG( 'l','o','c','i'):
288 return mov_metadata_loci(c, pb, atom.size);
289 case MKTAG( 'p','c','s','t'): key = "podcast";
290 parse = mov_metadata_int8_no_padding; break;
291 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
292 parse = mov_metadata_int8_no_padding; break;
293 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
294 case MKTAG( 'r','t','n','g'): key = "rating";
295 parse = mov_metadata_int8_no_padding; break;
296 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
297 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
298 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
299 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
300 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
301 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
302 case MKTAG( 's','t','i','k'): key = "media_type";
303 parse = mov_metadata_int8_no_padding; break;
304 case MKTAG( 't','r','k','n'): key = "track";
305 parse = mov_metadata_track_or_disc_number; break;
306 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
307 case MKTAG( 't','v','e','s'): key = "episode_sort";
308 parse = mov_metadata_int8_bypass_padding; break;
309 case MKTAG( 't','v','n','n'): key = "network"; break;
310 case MKTAG( 't','v','s','h'): key = "show"; break;
311 case MKTAG( 't','v','s','n'): key = "season_number";
312 parse = mov_metadata_int8_bypass_padding; break;
313 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
314 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
315 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
316 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
317 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
318 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
319 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
320 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
321 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
322 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
323 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
324 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
325 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
326 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
327 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
328 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
329 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
330 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
331 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
332 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
333 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
334 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
335 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
336 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
337 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
338 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
339 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
340 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
341 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
342 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
343 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
344 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
345 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
346 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
347 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
350 if (c->itunes_metadata && atom.size > 8) {
351 int data_size = avio_rb32(pb);
352 int tag = avio_rl32(pb);
353 if (tag == MKTAG('d','a','t','a')) {
354 data_type = avio_rb32(pb); // type
355 avio_rb32(pb); // unknown
356 str_size = data_size - 16;
359 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
360 int ret = mov_read_covr(c, pb, data_type, str_size);
362 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
367 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
368 str_size = avio_rb16(pb); // string length
369 langcode = avio_rb16(pb);
370 ff_mov_lang_to_iso639(langcode, language);
373 str_size = atom.size;
375 if (c->export_all && !key) {
376 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
383 return AVERROR_INVALIDDATA;
385 // allocate twice as much as worst-case
386 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
387 str = av_malloc(str_size_alloc);
389 return AVERROR(ENOMEM);
392 parse(c, pb, str_size, key);
394 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
395 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
397 avio_read(pb, str, str_size);
400 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
401 av_dict_set(&c->fc->metadata, key, str, 0);
402 if (*language && strcmp(language, "und")) {
403 snprintf(key2, sizeof(key2), "%s-%s", key, language);
404 av_dict_set(&c->fc->metadata, key2, str, 0);
407 av_dlog(c->fc, "lang \"%3s\" ", language);
408 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
409 key, str, (char*)&atom.type, str_size_alloc, atom.size);
415 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
418 int i, nb_chapters, str_len, version;
421 if ((atom.size -= 5) < 0)
424 version = avio_r8(pb);
427 avio_rb32(pb); // ???
428 nb_chapters = avio_r8(pb);
430 for (i = 0; i < nb_chapters; i++) {
434 start = avio_rb64(pb);
435 str_len = avio_r8(pb);
437 if ((atom.size -= 9+str_len) < 0)
440 avio_read(pb, str, str_len);
442 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
447 #define MIN_DATA_ENTRY_BOX_SIZE 12
448 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
451 MOVStreamContext *sc;
454 if (c->fc->nb_streams < 1)
456 st = c->fc->streams[c->fc->nb_streams-1];
459 avio_rb32(pb); // version + flags
460 entries = avio_rb32(pb);
461 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
462 entries >= UINT_MAX / sizeof(*sc->drefs))
463 return AVERROR_INVALIDDATA;
465 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
467 return AVERROR(ENOMEM);
468 sc->drefs_count = entries;
470 for (i = 0; i < sc->drefs_count; i++) {
471 MOVDref *dref = &sc->drefs[i];
472 uint32_t size = avio_rb32(pb);
473 int64_t next = avio_tell(pb) + size - 4;
476 return AVERROR_INVALIDDATA;
478 dref->type = avio_rl32(pb);
479 avio_rb32(pb); // version + flags
480 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
482 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
483 /* macintosh alias record */
484 uint16_t volume_len, len;
489 volume_len = avio_r8(pb);
490 volume_len = FFMIN(volume_len, 27);
491 avio_read(pb, dref->volume, 27);
492 dref->volume[volume_len] = 0;
493 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
498 len = FFMIN(len, 63);
499 avio_read(pb, dref->filename, 63);
500 dref->filename[len] = 0;
501 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
505 /* read next level up_from_alias/down_to_target */
506 dref->nlvl_from = avio_rb16(pb);
507 dref->nlvl_to = avio_rb16(pb);
508 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
509 dref->nlvl_from, dref->nlvl_to);
513 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
516 type = avio_rb16(pb);
518 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
521 if (type == 2) { // absolute path
523 dref->path = av_mallocz(len+1);
525 return AVERROR(ENOMEM);
526 avio_read(pb, dref->path, len);
527 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
529 memmove(dref->path, dref->path+volume_len, len);
532 for (j = 0; j < len; j++)
533 if (dref->path[j] == ':')
535 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
536 } else if (type == 0) { // directory name
538 dref->dir = av_malloc(len+1);
540 return AVERROR(ENOMEM);
541 avio_read(pb, dref->dir, len);
543 for (j = 0; j < len; j++)
544 if (dref->dir[j] == ':')
546 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
551 avio_seek(pb, next, SEEK_SET);
556 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
560 uint32_t av_unused ctype;
562 if (c->fc->nb_streams < 1) // meta before first trak
565 st = c->fc->streams[c->fc->nb_streams-1];
567 avio_r8(pb); /* version */
568 avio_rb24(pb); /* flags */
571 ctype = avio_rl32(pb);
572 type = avio_rl32(pb); /* component subtype */
574 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
575 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
577 if (type == MKTAG('v','i','d','e'))
578 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
579 else if (type == MKTAG('s','o','u','n'))
580 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
581 else if (type == MKTAG('m','1','a',' '))
582 st->codec->codec_id = AV_CODEC_ID_MP2;
583 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
584 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
586 avio_rb32(pb); /* component manufacture */
587 avio_rb32(pb); /* component flags */
588 avio_rb32(pb); /* component flags mask */
593 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
598 if (fc->nb_streams < 1)
600 st = fc->streams[fc->nb_streams-1];
602 avio_rb32(pb); /* version + flags */
603 ff_mp4_read_descr(fc, pb, &tag);
604 if (tag == MP4ESDescrTag) {
605 ff_mp4_parse_es_descr(pb, NULL);
607 avio_rb16(pb); /* ID */
609 ff_mp4_read_descr(fc, pb, &tag);
610 if (tag == MP4DecConfigDescrTag)
611 ff_mp4_read_dec_config_descr(fc, st, pb);
615 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
617 return ff_mov_read_esds(c->fc, pb);
620 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
623 int ac3info, acmod, lfeon, bsmod;
625 if (c->fc->nb_streams < 1)
627 st = c->fc->streams[c->fc->nb_streams-1];
629 ac3info = avio_rb24(pb);
630 bsmod = (ac3info >> 14) & 0x7;
631 acmod = (ac3info >> 11) & 0x7;
632 lfeon = (ac3info >> 10) & 0x1;
633 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
634 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
636 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
637 st->codec->audio_service_type = bsmod;
638 if (st->codec->channels > 1 && bsmod == 0x7)
639 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
644 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
647 int eac3info, acmod, lfeon, bsmod;
649 if (c->fc->nb_streams < 1)
651 st = c->fc->streams[c->fc->nb_streams-1];
653 /* No need to parse fields for additional independent substreams and its
654 * associated dependent substreams since libavcodec's E-AC-3 decoder
655 * does not support them yet. */
656 avio_rb16(pb); /* data_rate and num_ind_sub */
657 eac3info = avio_rb24(pb);
658 bsmod = (eac3info >> 12) & 0x1f;
659 acmod = (eac3info >> 9) & 0x7;
660 lfeon = (eac3info >> 8) & 0x1;
661 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
663 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
664 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
665 st->codec->audio_service_type = bsmod;
666 if (st->codec->channels > 1 && bsmod == 0x7)
667 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
672 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
676 if (c->fc->nb_streams < 1)
678 st = c->fc->streams[c->fc->nb_streams-1];
683 /* skip version and flags */
686 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
691 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
695 if (c->fc->nb_streams < 1)
697 st = c->fc->streams[c->fc->nb_streams-1];
699 return ff_get_wav_header(pb, st->codec, atom.size);
702 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
704 const int num = avio_rb32(pb);
705 const int den = avio_rb32(pb);
708 if (c->fc->nb_streams < 1)
710 st = c->fc->streams[c->fc->nb_streams-1];
712 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
713 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
714 av_log(c->fc, AV_LOG_WARNING,
715 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
716 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
718 } else if (den != 0) {
719 st->sample_aspect_ratio.num = num;
720 st->sample_aspect_ratio.den = den;
725 /* this atom contains actual media data */
726 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
728 if (atom.size == 0) /* wrong one (MP4) */
731 return 0; /* now go for moov */
734 /* read major brand, minor version and compatible brands and store them as metadata */
735 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
739 char minor_ver_str[11]; /* 32 bit integer -> 10 digits + null */
740 char* comp_brands_str;
741 uint8_t type[5] = {0};
743 avio_read(pb, type, 4);
744 if (strcmp(type, "qt "))
746 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
747 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
748 minor_ver = avio_rb32(pb); /* minor version */
749 snprintf(minor_ver_str, sizeof(minor_ver_str), "%"PRIu32"", minor_ver);
750 av_dict_set(&c->fc->metadata, "minor_version", minor_ver_str, 0);
752 comp_brand_size = atom.size - 8;
753 if (comp_brand_size < 0)
754 return AVERROR_INVALIDDATA;
755 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
756 if (!comp_brands_str)
757 return AVERROR(ENOMEM);
758 avio_read(pb, comp_brands_str, comp_brand_size);
759 comp_brands_str[comp_brand_size] = 0;
760 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
761 av_freep(&comp_brands_str);
766 /* this atom should contain all header atoms */
767 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
771 if ((ret = mov_read_default(c, pb, atom)) < 0)
773 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
774 /* so we don't parse the whole file if over a network */
776 return 0; /* now go for mdat */
779 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
781 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
782 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
783 return mov_read_default(c, pb, atom);
786 static void mov_metadata_creation_time(AVDictionary **metadata, time_t time)
790 struct tm *ptm, tmbuf;
791 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
792 ptm = gmtime_r(&time, &tmbuf);
794 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
795 av_dict_set(metadata, "creation_time", buffer, 0);
799 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
802 MOVStreamContext *sc;
804 char language[4] = {0};
806 time_t creation_time;
808 if (c->fc->nb_streams < 1)
810 st = c->fc->streams[c->fc->nb_streams-1];
813 if (sc->time_scale) {
814 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
815 return AVERROR_INVALIDDATA;
818 version = avio_r8(pb);
820 avpriv_request_sample(c->fc, "Version %d", version);
821 return AVERROR_PATCHWELCOME;
823 avio_rb24(pb); /* flags */
825 creation_time = avio_rb64(pb);
828 creation_time = avio_rb32(pb);
829 avio_rb32(pb); /* modification time */
831 mov_metadata_creation_time(&st->metadata, creation_time);
833 sc->time_scale = avio_rb32(pb);
834 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
836 lang = avio_rb16(pb); /* language */
837 if (ff_mov_lang_to_iso639(lang, language))
838 av_dict_set(&st->metadata, "language", language, 0);
839 avio_rb16(pb); /* quality */
844 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
846 time_t creation_time;
847 int version = avio_r8(pb); /* version */
848 avio_rb24(pb); /* flags */
851 creation_time = avio_rb64(pb);
854 creation_time = avio_rb32(pb);
855 avio_rb32(pb); /* modification time */
857 mov_metadata_creation_time(&c->fc->metadata, creation_time);
858 c->time_scale = avio_rb32(pb); /* time scale */
860 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
862 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
863 avio_rb32(pb); /* preferred scale */
865 avio_rb16(pb); /* preferred volume */
867 avio_skip(pb, 10); /* reserved */
869 avio_skip(pb, 36); /* display matrix */
871 avio_rb32(pb); /* preview time */
872 avio_rb32(pb); /* preview duration */
873 avio_rb32(pb); /* poster time */
874 avio_rb32(pb); /* selection time */
875 avio_rb32(pb); /* selection duration */
876 avio_rb32(pb); /* current time */
877 avio_rb32(pb); /* next track ID */
882 static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom)
886 if (c->fc->nb_streams < 1)
888 st = c->fc->streams[c->fc->nb_streams-1];
890 if ((uint64_t)atom.size > (1<<30))
891 return AVERROR_INVALIDDATA;
893 // currently SVQ3 decoder expect full STSD header - so let's fake it
894 // this should be fixed and just SMI header should be passed
895 av_free(st->codec->extradata);
896 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
897 if (!st->codec->extradata)
898 return AVERROR(ENOMEM);
899 st->codec->extradata_size = 0x5a + atom.size;
900 memcpy(st->codec->extradata, "SVQ3", 4); // fake
901 avio_read(pb, st->codec->extradata + 0x5a, atom.size);
902 av_dlog(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
906 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
911 if (c->fc->nb_streams < 1)
913 st = c->fc->streams[c->fc->nb_streams-1];
915 little_endian = avio_rb16(pb);
916 av_dlog(c->fc, "enda %d\n", little_endian);
917 if (little_endian == 1) {
918 switch (st->codec->codec_id) {
919 case AV_CODEC_ID_PCM_S24BE:
920 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
922 case AV_CODEC_ID_PCM_S32BE:
923 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
925 case AV_CODEC_ID_PCM_F32BE:
926 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
928 case AV_CODEC_ID_PCM_F64BE:
929 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
938 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
941 char color_parameter_type[5] = { 0 };
942 int color_primaries, color_trc, color_matrix;
944 if (c->fc->nb_streams < 1)
946 st = c->fc->streams[c->fc->nb_streams - 1];
948 avio_read(pb, color_parameter_type, 4);
949 if (strncmp(color_parameter_type, "nclx", 4) &&
950 strncmp(color_parameter_type, "nclc", 4)) {
951 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
952 color_parameter_type);
956 color_primaries = avio_rb16(pb);
957 color_trc = avio_rb16(pb);
958 color_matrix = avio_rb16(pb);
960 av_dlog(c->fc, "%s: pri %"PRIu16" trc %"PRIu16" matrix %"PRIu16"",
961 color_parameter_type, color_primaries, color_trc, color_matrix);
964 uint8_t color_range = avio_r8(pb) >> 7;
965 av_dlog(c->fc, " full %"PRIu8"", color_range)
967 st->codec->color_range = AVCOL_RANGE_JPEG;
969 st->codec->color_range = AVCOL_RANGE_MPEG;
970 /* 14496-12 references JPEG XR specs (rather than the more complete
971 * 23001-8) so some adjusting is required */
972 if (color_primaries >= AVCOL_PRI_FILM)
973 color_primaries = AVCOL_PRI_UNSPECIFIED;
974 if ((color_trc >= AVCOL_TRC_LINEAR &&
975 color_trc <= AVCOL_TRC_LOG_SQRT) ||
976 color_trc >= AVCOL_TRC_BT2020_10)
977 color_trc = AVCOL_TRC_UNSPECIFIED;
978 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
979 color_matrix = AVCOL_SPC_UNSPECIFIED;
980 st->codec->color_primaries = color_primaries;
981 st->codec->color_trc = color_trc;
982 st->codec->colorspace = color_matrix;
984 /* color primaries, Table 4-4 */
985 switch (color_primaries) {
986 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
987 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
988 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
990 /* color transfer, Table 4-5 */
992 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
993 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
995 /* color matrix, Table 4-6 */
996 switch (color_matrix) {
997 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
998 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
999 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1002 av_dlog(c->fc, "\n")
1007 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1010 unsigned mov_field_order;
1011 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1013 if (c->fc->nb_streams < 1) // will happen with jp2 files
1015 st = c->fc->streams[c->fc->nb_streams-1];
1017 return AVERROR_INVALIDDATA;
1018 mov_field_order = avio_rb16(pb);
1019 if ((mov_field_order & 0xFF00) == 0x0100)
1020 decoded_field_order = AV_FIELD_PROGRESSIVE;
1021 else if ((mov_field_order & 0xFF00) == 0x0200) {
1022 switch (mov_field_order & 0xFF) {
1023 case 0x01: decoded_field_order = AV_FIELD_TT;
1025 case 0x06: decoded_field_order = AV_FIELD_BB;
1027 case 0x09: decoded_field_order = AV_FIELD_TB;
1029 case 0x0E: decoded_field_order = AV_FIELD_BT;
1033 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1034 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1036 st->codec->field_order = decoded_field_order;
1041 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1042 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1049 if (c->fc->nb_streams < 1) // will happen with jp2 files
1051 st= c->fc->streams[c->fc->nb_streams-1];
1052 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1053 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1054 return AVERROR_INVALIDDATA;
1055 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1056 st->codec->extradata_size = 0;
1059 buf = st->codec->extradata + st->codec->extradata_size;
1060 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1061 AV_WB32( buf , atom.size + 8);
1062 AV_WL32( buf + 4, atom.type);
1063 avio_read(pb, buf + 8, atom.size);
1067 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1071 if (c->fc->nb_streams < 1)
1073 st = c->fc->streams[c->fc->nb_streams-1];
1075 if ((uint64_t)atom.size > (1<<30))
1076 return AVERROR_INVALIDDATA;
1078 if (st->codec->codec_id == AV_CODEC_ID_QDM2 || st->codec->codec_id == AV_CODEC_ID_QDMC) {
1079 // pass all frma atom to codec, needed at least for QDMC and QDM2
1080 av_free(st->codec->extradata);
1081 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
1082 if (!st->codec->extradata)
1083 return AVERROR(ENOMEM);
1084 st->codec->extradata_size = atom.size;
1085 avio_read(pb, st->codec->extradata, atom.size);
1086 } else if (atom.size > 8) { /* to read frma, esds atoms */
1088 if ((ret = mov_read_default(c, pb, atom)) < 0)
1091 avio_skip(pb, atom.size);
1096 * This function reads atom content and puts data in extradata without tag
1097 * nor size unlike mov_read_extradata.
1099 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1103 if (c->fc->nb_streams < 1)
1105 st = c->fc->streams[c->fc->nb_streams-1];
1107 if ((uint64_t)atom.size > (1<<30))
1108 return AVERROR_INVALIDDATA;
1110 if (atom.size >= 10) {
1111 // Broken files created by legacy versions of libavformat will
1112 // wrap a whole fiel atom inside of a glbl atom.
1113 unsigned size = avio_rb32(pb);
1114 unsigned type = avio_rl32(pb);
1115 avio_seek(pb, -8, SEEK_CUR);
1116 if (type == MKTAG('f','i','e','l') && size == atom.size)
1117 return mov_read_default(c, pb, atom);
1119 av_free(st->codec->extradata);
1120 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
1121 if (!st->codec->extradata)
1122 return AVERROR(ENOMEM);
1123 st->codec->extradata_size = atom.size;
1124 avio_read(pb, st->codec->extradata, atom.size);
1128 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1131 uint8_t profile_level;
1133 if (c->fc->nb_streams < 1)
1135 st = c->fc->streams[c->fc->nb_streams-1];
1137 if (atom.size >= (1<<28) || atom.size < 7)
1138 return AVERROR_INVALIDDATA;
1140 profile_level = avio_r8(pb);
1141 if ((profile_level & 0xf0) != 0xc0)
1144 av_free(st->codec->extradata);
1145 st->codec->extradata = av_mallocz(atom.size - 7 + FF_INPUT_BUFFER_PADDING_SIZE);
1146 if (!st->codec->extradata)
1147 return AVERROR(ENOMEM);
1148 st->codec->extradata_size = atom.size - 7;
1149 avio_seek(pb, 6, SEEK_CUR);
1150 avio_read(pb, st->codec->extradata, st->codec->extradata_size);
1155 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1156 * but can have extradata appended at the end after the 40 bytes belonging
1159 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1163 if (c->fc->nb_streams < 1)
1165 if (atom.size <= 40)
1167 st = c->fc->streams[c->fc->nb_streams-1];
1169 if ((uint64_t)atom.size > (1<<30))
1170 return AVERROR_INVALIDDATA;
1172 av_free(st->codec->extradata);
1173 st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE);
1174 if (!st->codec->extradata)
1175 return AVERROR(ENOMEM);
1176 st->codec->extradata_size = atom.size - 40;
1178 avio_read(pb, st->codec->extradata, atom.size - 40);
1182 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1185 MOVStreamContext *sc;
1186 unsigned int i, entries;
1188 if (c->fc->nb_streams < 1)
1190 st = c->fc->streams[c->fc->nb_streams-1];
1193 avio_r8(pb); /* version */
1194 avio_rb24(pb); /* flags */
1196 entries = avio_rb32(pb);
1200 if (entries >= UINT_MAX/sizeof(int64_t))
1201 return AVERROR_INVALIDDATA;
1203 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1204 if (!sc->chunk_offsets)
1205 return AVERROR(ENOMEM);
1206 sc->chunk_count = entries;
1208 if (atom.type == MKTAG('s','t','c','o'))
1209 for (i = 0; i < entries && !pb->eof_reached; i++)
1210 sc->chunk_offsets[i] = avio_rb32(pb);
1211 else if (atom.type == MKTAG('c','o','6','4'))
1212 for (i = 0; i < entries && !pb->eof_reached; i++)
1213 sc->chunk_offsets[i] = avio_rb64(pb);
1215 return AVERROR_INVALIDDATA;
1217 sc->chunk_count = i;
1219 if (pb->eof_reached)
1226 * Compute codec id for 'lpcm' tag.
1227 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1229 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1236 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1239 static int mov_codec_id(AVStream *st, uint32_t format)
1241 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1244 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1245 (format & 0xFFFF) == 'T' + ('S' << 8)))
1246 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1248 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1249 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1250 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1251 /* skip old asf mpeg4 tag */
1252 format && format != MKTAG('m','p','4','s')) {
1253 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1255 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1257 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1258 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
1259 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1261 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1265 st->codec->codec_tag = format;
1270 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1271 AVStream *st, MOVStreamContext *sc)
1273 uint8_t codec_name[32];
1274 unsigned int color_depth, len, j;
1275 int color_greyscale;
1278 avio_rb16(pb); /* version */
1279 avio_rb16(pb); /* revision level */
1280 avio_rb32(pb); /* vendor */
1281 avio_rb32(pb); /* temporal quality */
1282 avio_rb32(pb); /* spatial quality */
1284 st->codec->width = avio_rb16(pb); /* width */
1285 st->codec->height = avio_rb16(pb); /* height */
1287 avio_rb32(pb); /* horiz resolution */
1288 avio_rb32(pb); /* vert resolution */
1289 avio_rb32(pb); /* data size, always 0 */
1290 avio_rb16(pb); /* frames per samples */
1292 len = avio_r8(pb); /* codec name, pascal string */
1295 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1297 avio_skip(pb, 31 - len);
1300 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1302 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1303 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25))
1304 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1305 /* Flash Media Server uses tag H263 with Sorenson Spark */
1306 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1307 !memcmp(codec_name, "Sorenson H263", 13))
1308 st->codec->codec_id = AV_CODEC_ID_FLV1;
1310 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1311 color_table_id = avio_rb16(pb); /* colortable id */
1312 av_dlog(c->fc, "depth %d, ctab id %d\n",
1313 st->codec->bits_per_coded_sample, color_table_id);
1314 /* figure out the palette situation */
1315 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1316 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1318 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1319 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1320 /* for palette traversal */
1321 unsigned int color_start, color_count, color_end;
1322 unsigned char r, g, b;
1324 if (color_greyscale) {
1325 int color_index, color_dec;
1326 /* compute the greyscale palette */
1327 st->codec->bits_per_coded_sample = color_depth;
1328 color_count = 1 << color_depth;
1330 color_dec = 256 / (color_count - 1);
1331 for (j = 0; j < color_count; j++) {
1332 r = g = b = color_index;
1333 sc->palette[j] = (r << 16) | (g << 8) | (b);
1334 color_index -= color_dec;
1335 if (color_index < 0)
1338 } else if (color_table_id) {
1339 const uint8_t *color_table;
1340 /* if flag bit 3 is set, use the default palette */
1341 color_count = 1 << color_depth;
1342 if (color_depth == 2)
1343 color_table = ff_qt_default_palette_4;
1344 else if (color_depth == 4)
1345 color_table = ff_qt_default_palette_16;
1347 color_table = ff_qt_default_palette_256;
1349 for (j = 0; j < color_count; j++) {
1350 r = color_table[j * 3 + 0];
1351 g = color_table[j * 3 + 1];
1352 b = color_table[j * 3 + 2];
1353 sc->palette[j] = (r << 16) | (g << 8) | (b);
1356 /* load the palette from the file */
1357 color_start = avio_rb32(pb);
1358 color_count = avio_rb16(pb);
1359 color_end = avio_rb16(pb);
1360 if ((color_start <= 255) && (color_end <= 255)) {
1361 for (j = color_start; j <= color_end; j++) {
1362 /* each R, G, or B component is 16 bits;
1363 * only use the top 8 bits; skip alpha bytes
1373 sc->palette[j] = (r << 16) | (g << 8) | (b);
1377 sc->has_palette = 1;
1381 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1382 AVStream *st, MOVStreamContext *sc)
1384 int bits_per_sample, flags;
1385 uint16_t version = avio_rb16(pb);
1387 avio_rb16(pb); /* revision level */
1388 avio_rb32(pb); /* vendor */
1390 st->codec->channels = avio_rb16(pb); /* channel count */
1391 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1392 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1394 sc->audio_cid = avio_rb16(pb);
1395 avio_rb16(pb); /* packet size = 0 */
1397 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1399 // Read QT version 1 fields. In version 0 these do not exist.
1400 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1403 sc->samples_per_frame = avio_rb32(pb);
1404 avio_rb32(pb); /* bytes per packet */
1405 sc->bytes_per_frame = avio_rb32(pb);
1406 avio_rb32(pb); /* bytes per sample */
1407 } else if (version == 2) {
1408 avio_rb32(pb); /* sizeof struct only */
1409 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1410 st->codec->channels = avio_rb32(pb);
1411 avio_rb32(pb); /* always 0x7F000000 */
1412 st->codec->bits_per_coded_sample = avio_rb32(pb);
1414 flags = avio_rb32(pb); /* lpcm format specific flag */
1415 sc->bytes_per_frame = avio_rb32(pb);
1416 sc->samples_per_frame = avio_rb32(pb);
1417 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1418 st->codec->codec_id =
1419 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1424 switch (st->codec->codec_id) {
1425 case AV_CODEC_ID_PCM_S8:
1426 case AV_CODEC_ID_PCM_U8:
1427 if (st->codec->bits_per_coded_sample == 16)
1428 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1430 case AV_CODEC_ID_PCM_S16LE:
1431 case AV_CODEC_ID_PCM_S16BE:
1432 if (st->codec->bits_per_coded_sample == 8)
1433 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1434 else if (st->codec->bits_per_coded_sample == 24)
1435 st->codec->codec_id =
1436 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1437 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1439 /* set values for old format before stsd version 1 appeared */
1440 case AV_CODEC_ID_MACE3:
1441 sc->samples_per_frame = 6;
1442 sc->bytes_per_frame = 2 * st->codec->channels;
1444 case AV_CODEC_ID_MACE6:
1445 sc->samples_per_frame = 6;
1446 sc->bytes_per_frame = 1 * st->codec->channels;
1448 case AV_CODEC_ID_ADPCM_IMA_QT:
1449 sc->samples_per_frame = 64;
1450 sc->bytes_per_frame = 34 * st->codec->channels;
1452 case AV_CODEC_ID_GSM:
1453 sc->samples_per_frame = 160;
1454 sc->bytes_per_frame = 33;
1460 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1461 if (bits_per_sample) {
1462 st->codec->bits_per_coded_sample = bits_per_sample;
1463 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1467 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1468 AVStream *st, MOVStreamContext *sc,
1471 // ttxt stsd contains display flags, justification, background
1472 // color, fonts, and default styles, so fake an atom to read it
1473 MOVAtom fake_atom = { .size = size };
1474 // mp4s contains a regular esds atom
1475 if (st->codec->codec_tag != AV_RL32("mp4s"))
1476 mov_read_glbl(c, pb, fake_atom);
1477 st->codec->width = sc->width;
1478 st->codec->height = sc->height;
1481 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1486 y = (ycbcr >> 16) & 0xFF;
1487 cr = (ycbcr >> 8) & 0xFF;
1490 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1491 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1492 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1494 return (r << 16) | (g << 8) | b;
1497 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1499 char buf[256] = {0};
1500 uint8_t *src = st->codec->extradata;
1503 if (st->codec->extradata_size != 64)
1506 if (st->codec->width > 0 && st->codec->height > 0)
1507 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1508 st->codec->width, st->codec->height);
1509 av_strlcat(buf, "palette: ", sizeof(buf));
1511 for (i = 0; i < 16; i++) {
1512 uint32_t yuv = AV_RB32(src + i * 4);
1513 uint32_t rgba = yuv_to_rgba(yuv);
1515 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1518 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1521 av_freep(&st->codec->extradata);
1522 st->codec->extradata_size = 0;
1523 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1524 if (!st->codec->extradata)
1525 return AVERROR(ENOMEM);
1526 st->codec->extradata_size = strlen(buf);
1527 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1532 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1533 AVStream *st, MOVStreamContext *sc,
1536 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1537 st->codec->extradata_size = size;
1538 st->codec->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
1539 if (!st->codec->extradata)
1540 return AVERROR(ENOMEM);
1541 avio_read(pb, st->codec->extradata, size);
1543 /* other codec type, just skip (rtp, mp4s ...) */
1544 avio_skip(pb, size);
1549 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1550 AVStream *st, MOVStreamContext *sc)
1552 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1553 !st->codec->sample_rate && sc->time_scale > 1)
1554 st->codec->sample_rate = sc->time_scale;
1556 /* special codec parameters handling */
1557 switch (st->codec->codec_id) {
1558 #if CONFIG_DV_DEMUXER
1559 case AV_CODEC_ID_DVAUDIO:
1560 c->dv_fctx = avformat_alloc_context();
1561 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1563 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1564 return AVERROR(ENOMEM);
1566 sc->dv_audio_container = 1;
1567 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1570 /* no ifdef since parameters are always those */
1571 case AV_CODEC_ID_QCELP:
1572 st->codec->channels = 1;
1573 // force sample rate for qcelp when not stored in mov
1574 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1575 st->codec->sample_rate = 8000;
1577 case AV_CODEC_ID_AMR_NB:
1578 st->codec->channels = 1;
1579 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1580 st->codec->sample_rate = 8000;
1582 case AV_CODEC_ID_AMR_WB:
1583 st->codec->channels = 1;
1584 st->codec->sample_rate = 16000;
1586 case AV_CODEC_ID_MP2:
1587 case AV_CODEC_ID_MP3:
1588 /* force type after stsd for m1a hdlr */
1589 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1590 st->need_parsing = AVSTREAM_PARSE_FULL;
1592 case AV_CODEC_ID_GSM:
1593 case AV_CODEC_ID_ADPCM_MS:
1594 case AV_CODEC_ID_ADPCM_IMA_WAV:
1595 case AV_CODEC_ID_ILBC:
1596 st->codec->block_align = sc->bytes_per_frame;
1598 case AV_CODEC_ID_ALAC:
1599 if (st->codec->extradata_size == 36) {
1600 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1601 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1604 case AV_CODEC_ID_VC1:
1605 st->need_parsing = AVSTREAM_PARSE_FULL;
1613 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1614 int codec_tag, int format,
1617 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1620 (codec_tag == AV_RL32("avc1") ||
1621 codec_tag == AV_RL32("hvc1") ||
1622 codec_tag == AV_RL32("hev1") ||
1623 (codec_tag != format &&
1624 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1625 : codec_tag != MKTAG('j','p','e','g'))))) {
1626 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1627 * export it as a separate AVStream but this needs a few changes
1628 * in the MOV demuxer, patch welcome. */
1630 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1631 avio_skip(pb, size);
1638 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1641 MOVStreamContext *sc;
1642 int pseudo_stream_id;
1644 if (c->fc->nb_streams < 1)
1646 st = c->fc->streams[c->fc->nb_streams-1];
1649 for (pseudo_stream_id = 0;
1650 pseudo_stream_id < entries && !pb->eof_reached;
1651 pseudo_stream_id++) {
1652 //Parsing Sample description table
1654 int ret, dref_id = 1;
1655 MOVAtom a = { AV_RL32("stsd") };
1656 int64_t start_pos = avio_tell(pb);
1657 uint32_t size = avio_rb32(pb); /* size */
1658 uint32_t format = avio_rl32(pb); /* data format */
1661 avio_rb32(pb); /* reserved */
1662 avio_rb16(pb); /* reserved */
1663 dref_id = avio_rb16(pb);
1665 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRIu32" in stsd\n", size);
1666 return AVERROR_INVALIDDATA;
1669 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1670 size - (avio_tell(pb) - start_pos)))
1673 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1674 sc->dref_id= dref_id;
1676 id = mov_codec_id(st, format);
1678 av_dlog(c->fc, "size=%"PRIu32" 4CC= %"PRIu8"%"PRIu8"%"PRIu8"%"PRIu8" codec_type=%d\n", size,
1679 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1680 (format >> 24) & 0xff, st->codec->codec_type);
1682 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1683 st->codec->codec_id = id;
1684 mov_parse_stsd_video(c, pb, st, sc);
1685 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1686 st->codec->codec_id = id;
1687 mov_parse_stsd_audio(c, pb, st, sc);
1688 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1689 st->codec->codec_id = id;
1690 mov_parse_stsd_subtitle(c, pb, st, sc,
1691 size - (avio_tell(pb) - start_pos));
1693 ret = mov_parse_stsd_data(c, pb, st, sc,
1694 size - (avio_tell(pb) - start_pos));
1698 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1699 a.size = size - (avio_tell(pb) - start_pos);
1701 if ((ret = mov_read_default(c, pb, a)) < 0)
1703 } else if (a.size > 0)
1704 avio_skip(pb, a.size);
1707 if (pb->eof_reached)
1710 return mov_finalize_stsd_codec(c, pb, st, sc);
1713 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1717 avio_r8(pb); /* version */
1718 avio_rb24(pb); /* flags */
1719 entries = avio_rb32(pb);
1721 return ff_mov_read_stsd_entries(c, pb, entries);
1724 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1727 MOVStreamContext *sc;
1728 unsigned int i, entries;
1730 if (c->fc->nb_streams < 1)
1732 st = c->fc->streams[c->fc->nb_streams-1];
1735 avio_r8(pb); /* version */
1736 avio_rb24(pb); /* flags */
1738 entries = avio_rb32(pb);
1740 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1744 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1745 return AVERROR_INVALIDDATA;
1746 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1748 return AVERROR(ENOMEM);
1750 for (i = 0; i < entries && !pb->eof_reached; i++) {
1751 sc->stsc_data[i].first = avio_rb32(pb);
1752 sc->stsc_data[i].count = avio_rb32(pb);
1753 sc->stsc_data[i].id = avio_rb32(pb);
1758 if (pb->eof_reached)
1764 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1767 MOVStreamContext *sc;
1768 unsigned i, entries;
1770 if (c->fc->nb_streams < 1)
1772 st = c->fc->streams[c->fc->nb_streams-1];
1775 avio_rb32(pb); // version + flags
1777 entries = avio_rb32(pb);
1778 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1779 return AVERROR_INVALIDDATA;
1780 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1782 return AVERROR(ENOMEM);
1784 for (i = 0; i < entries && !pb->eof_reached; i++) {
1785 sc->stps_data[i] = avio_rb32(pb);
1786 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1791 if (pb->eof_reached)
1797 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1800 MOVStreamContext *sc;
1801 unsigned int i, entries;
1803 if (c->fc->nb_streams < 1)
1805 st = c->fc->streams[c->fc->nb_streams-1];
1808 avio_r8(pb); /* version */
1809 avio_rb24(pb); /* flags */
1811 entries = avio_rb32(pb);
1813 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1817 sc->keyframe_absent = 1;
1820 if (entries >= UINT_MAX / sizeof(int))
1821 return AVERROR_INVALIDDATA;
1822 av_freep(&sc->keyframes);
1823 sc->keyframes = av_malloc(entries * sizeof(int));
1825 return AVERROR(ENOMEM);
1827 for (i = 0; i < entries && !pb->eof_reached; i++) {
1828 sc->keyframes[i] = avio_rb32(pb);
1829 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1832 sc->keyframe_count = i;
1834 if (pb->eof_reached)
1840 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1843 MOVStreamContext *sc;
1844 unsigned int i, entries, sample_size, field_size, num_bytes;
1848 if (c->fc->nb_streams < 1)
1850 st = c->fc->streams[c->fc->nb_streams-1];
1853 avio_r8(pb); /* version */
1854 avio_rb24(pb); /* flags */
1856 if (atom.type == MKTAG('s','t','s','z')) {
1857 sample_size = avio_rb32(pb);
1858 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1859 sc->sample_size = sample_size;
1863 avio_rb24(pb); /* reserved */
1864 field_size = avio_r8(pb);
1866 entries = avio_rb32(pb);
1868 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
1870 sc->sample_count = entries;
1874 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1875 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1876 return AVERROR_INVALIDDATA;
1881 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
1882 return AVERROR_INVALIDDATA;
1883 sc->sample_sizes = av_malloc(entries * sizeof(int));
1884 if (!sc->sample_sizes)
1885 return AVERROR(ENOMEM);
1887 num_bytes = (entries*field_size+4)>>3;
1889 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
1891 av_freep(&sc->sample_sizes);
1892 return AVERROR(ENOMEM);
1895 if (avio_read(pb, buf, num_bytes) < num_bytes) {
1896 av_freep(&sc->sample_sizes);
1898 return AVERROR_INVALIDDATA;
1901 init_get_bits(&gb, buf, 8*num_bytes);
1903 for (i = 0; i < entries && !pb->eof_reached; i++) {
1904 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
1905 sc->data_size += sc->sample_sizes[i];
1908 sc->sample_count = i;
1910 if (pb->eof_reached)
1917 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1920 MOVStreamContext *sc;
1921 unsigned int i, entries;
1923 int64_t total_sample_count=0;
1925 if (c->fc->nb_streams < 1)
1927 st = c->fc->streams[c->fc->nb_streams-1];
1930 avio_r8(pb); /* version */
1931 avio_rb24(pb); /* flags */
1932 entries = avio_rb32(pb);
1934 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
1935 c->fc->nb_streams-1, entries);
1939 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
1940 return AVERROR(EINVAL);
1942 av_free(sc->stts_data);
1943 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
1945 return AVERROR(ENOMEM);
1947 for (i = 0; i < entries && !pb->eof_reached; i++) {
1948 int sample_duration;
1951 sample_count=avio_rb32(pb);
1952 sample_duration = avio_rb32(pb);
1953 if (sample_count < 0) {
1954 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
1955 return AVERROR_INVALIDDATA;
1957 sc->stts_data[i].count= sample_count;
1958 sc->stts_data[i].duration= sample_duration;
1960 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
1961 sample_count, sample_duration);
1963 duration+=(int64_t)sample_duration*sample_count;
1964 total_sample_count+=sample_count;
1969 if (pb->eof_reached)
1972 st->nb_frames= total_sample_count;
1974 st->duration= duration;
1975 sc->track_end = duration;
1979 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1982 MOVStreamContext *sc;
1983 unsigned int i, entries;
1985 if (c->fc->nb_streams < 1)
1987 st = c->fc->streams[c->fc->nb_streams-1];
1990 avio_r8(pb); /* version */
1991 avio_rb24(pb); /* flags */
1992 entries = avio_rb32(pb);
1994 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1998 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
1999 return AVERROR_INVALIDDATA;
2000 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2002 return AVERROR(ENOMEM);
2004 for (i = 0; i < entries && !pb->eof_reached; i++) {
2005 int count =avio_rb32(pb);
2006 int duration =avio_rb32(pb);
2008 sc->ctts_data[i].count = count;
2009 sc->ctts_data[i].duration= duration;
2011 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2016 if (pb->eof_reached)
2019 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2024 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2027 MOVStreamContext *sc;
2028 unsigned int i, entries;
2030 uint32_t grouping_type;
2032 if (c->fc->nb_streams < 1)
2034 st = c->fc->streams[c->fc->nb_streams-1];
2037 version = avio_r8(pb); /* version */
2038 avio_rb24(pb); /* flags */
2039 grouping_type = avio_rl32(pb);
2040 if (grouping_type != MKTAG( 'r','a','p',' '))
2041 return 0; /* only support 'rap ' grouping */
2043 avio_rb32(pb); /* grouping_type_parameter */
2045 entries = avio_rb32(pb);
2048 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2049 return AVERROR_INVALIDDATA;
2050 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2052 return AVERROR(ENOMEM);
2054 for (i = 0; i < entries && !pb->eof_reached; i++) {
2055 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2056 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2059 sc->rap_group_count = i;
2061 return pb->eof_reached ? AVERROR_EOF : 0;
2064 static void mov_build_index(MOVContext *mov, AVStream *st)
2066 MOVStreamContext *sc = st->priv_data;
2067 int64_t current_offset;
2068 int64_t current_dts = 0;
2069 unsigned int stts_index = 0;
2070 unsigned int stsc_index = 0;
2071 unsigned int stss_index = 0;
2072 unsigned int stps_index = 0;
2074 uint64_t stream_size = 0;
2076 /* adjust first dts according to edit list */
2077 if (sc->time_offset && mov->time_scale > 0) {
2078 if (sc->time_offset < 0)
2079 sc->time_offset = av_rescale(sc->time_offset, sc->time_scale, mov->time_scale);
2080 current_dts = -sc->time_offset;
2081 if (sc->ctts_data && sc->stts_data && sc->stts_data[0].duration &&
2082 sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
2083 /* more than 16 frames delay, dts are likely wrong
2084 this happens with files created by iMovie */
2086 st->codec->has_b_frames = 1;
2090 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2091 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2092 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2093 unsigned int current_sample = 0;
2094 unsigned int stts_sample = 0;
2095 unsigned int sample_size;
2096 unsigned int distance = 0;
2097 unsigned int rap_group_index = 0;
2098 unsigned int rap_group_sample = 0;
2099 int rap_group_present = sc->rap_group_count && sc->rap_group;
2100 int key_off = (sc->keyframes && sc->keyframes[0] > 0) || (sc->stps_data && sc->stps_data[0] > 0);
2102 current_dts -= sc->dts_shift;
2104 if (!sc->sample_count)
2106 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2108 if (av_reallocp_array(&st->index_entries,
2109 st->nb_index_entries + sc->sample_count,
2110 sizeof(*st->index_entries)) < 0) {
2111 st->nb_index_entries = 0;
2114 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2116 for (i = 0; i < sc->chunk_count; i++) {
2117 current_offset = sc->chunk_offsets[i];
2118 while (stsc_index + 1 < sc->stsc_count &&
2119 i + 1 == sc->stsc_data[stsc_index + 1].first)
2121 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2123 if (current_sample >= sc->sample_count) {
2124 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2128 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2130 if (stss_index + 1 < sc->keyframe_count)
2132 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2134 if (stps_index + 1 < sc->stps_count)
2137 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2138 if (sc->rap_group[rap_group_index].index > 0)
2140 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2141 rap_group_sample = 0;
2147 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
2148 if (sc->pseudo_stream_id == -1 ||
2149 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2150 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2151 e->pos = current_offset;
2152 e->timestamp = current_dts;
2153 e->size = sample_size;
2154 e->min_distance = distance;
2155 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2156 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2157 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2158 current_offset, current_dts, sample_size, distance, keyframe);
2161 current_offset += sample_size;
2162 stream_size += sample_size;
2163 current_dts += sc->stts_data[stts_index].duration;
2167 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2173 if (st->duration > 0)
2174 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2176 unsigned chunk_samples, total = 0;
2178 // compute total chunk count
2179 for (i = 0; i < sc->stsc_count; i++) {
2180 unsigned count, chunk_count;
2182 chunk_samples = sc->stsc_data[i].count;
2183 if (i != sc->stsc_count - 1 &&
2184 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2185 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2189 if (sc->samples_per_frame >= 160) { // gsm
2190 count = chunk_samples / sc->samples_per_frame;
2191 } else if (sc->samples_per_frame > 1) {
2192 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2193 count = (chunk_samples+samples-1) / samples;
2195 count = (chunk_samples+1023) / 1024;
2198 if (i < sc->stsc_count - 1)
2199 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2201 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2202 total += chunk_count * count;
2205 av_dlog(mov->fc, "chunk count %d\n", total);
2206 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2208 if (av_reallocp_array(&st->index_entries,
2209 st->nb_index_entries + total,
2210 sizeof(*st->index_entries)) < 0) {
2211 st->nb_index_entries = 0;
2214 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2217 for (i = 0; i < sc->chunk_count; i++) {
2218 current_offset = sc->chunk_offsets[i];
2219 if (stsc_index + 1 < sc->stsc_count &&
2220 i + 1 == sc->stsc_data[stsc_index + 1].first)
2222 chunk_samples = sc->stsc_data[stsc_index].count;
2224 while (chunk_samples > 0) {
2226 unsigned size, samples;
2228 if (sc->samples_per_frame >= 160) { // gsm
2229 samples = sc->samples_per_frame;
2230 size = sc->bytes_per_frame;
2232 if (sc->samples_per_frame > 1) {
2233 samples = FFMIN((1024 / sc->samples_per_frame)*
2234 sc->samples_per_frame, chunk_samples);
2235 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2237 samples = FFMIN(1024, chunk_samples);
2238 size = samples * sc->sample_size;
2242 if (st->nb_index_entries >= total) {
2243 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2246 e = &st->index_entries[st->nb_index_entries++];
2247 e->pos = current_offset;
2248 e->timestamp = current_dts;
2250 e->min_distance = 0;
2251 e->flags = AVINDEX_KEYFRAME;
2252 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2253 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2256 current_offset += size;
2257 current_dts += samples;
2258 chunk_samples -= samples;
2264 static int mov_open_dref(AVIOContext **pb, char *src, MOVDref *ref,
2265 AVIOInterruptCB *int_cb)
2267 /* try relative path, we do not try the absolute because it can leak information about our
2268 system to an attacker */
2269 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2270 char filename[1024];
2274 /* find a source dir */
2275 src_path = strrchr(src, '/');
2281 /* find a next level down to target */
2282 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2283 if (ref->path[l] == '/') {
2284 if (i == ref->nlvl_to - 1)
2290 /* compose filename if next level down to target was found */
2291 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2292 memcpy(filename, src, src_path - src);
2293 filename[src_path - src] = 0;
2295 for (i = 1; i < ref->nlvl_from; i++)
2296 av_strlcat(filename, "../", 1024);
2298 av_strlcat(filename, ref->path + l + 1, 1024);
2300 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2305 return AVERROR(ENOENT);
2308 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2311 MOVStreamContext *sc;
2314 st = avformat_new_stream(c->fc, NULL);
2315 if (!st) return AVERROR(ENOMEM);
2316 st->id = c->fc->nb_streams;
2317 sc = av_mallocz(sizeof(MOVStreamContext));
2318 if (!sc) return AVERROR(ENOMEM);
2321 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2322 sc->ffindex = st->index;
2324 if ((ret = mov_read_default(c, pb, atom)) < 0)
2328 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2329 (!sc->sample_size && !sc->sample_count))) {
2330 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2335 if (sc->time_scale <= 0) {
2336 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", st->index);
2337 sc->time_scale = c->time_scale;
2338 if (sc->time_scale <= 0)
2342 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2344 mov_build_index(c, st);
2346 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2347 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2348 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback) < 0)
2349 av_log(c->fc, AV_LOG_ERROR,
2350 "stream %d, error opening alias: path='%s', dir='%s', "
2351 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2352 st->index, dref->path, dref->dir, dref->filename,
2353 dref->volume, dref->nlvl_from, dref->nlvl_to);
2357 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2358 if (!st->sample_aspect_ratio.num &&
2359 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2360 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2361 ((double)st->codec->width * sc->height), INT_MAX);
2365 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2366 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2367 TAG_IS_AVCI(st->codec->codec_tag)) {
2368 ret = ff_generate_avci_extradata(st);
2373 switch (st->codec->codec_id) {
2374 #if CONFIG_H261_DECODER
2375 case AV_CODEC_ID_H261:
2377 #if CONFIG_H263_DECODER
2378 case AV_CODEC_ID_H263:
2380 #if CONFIG_MPEG4_DECODER
2381 case AV_CODEC_ID_MPEG4:
2383 st->codec->width = 0; /* let decoder init width/height */
2384 st->codec->height= 0;
2388 /* Do not need those anymore. */
2389 av_freep(&sc->chunk_offsets);
2390 av_freep(&sc->stsc_data);
2391 av_freep(&sc->sample_sizes);
2392 av_freep(&sc->keyframes);
2393 av_freep(&sc->stts_data);
2394 av_freep(&sc->stps_data);
2395 av_freep(&sc->rap_group);
2400 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2403 c->itunes_metadata = 1;
2404 ret = mov_read_default(c, pb, atom);
2405 c->itunes_metadata = 0;
2409 static int mov_read_replaygain(MOVContext *c, AVIOContext *pb, int size)
2411 int64_t end = avio_tell(pb) + size;
2412 uint8_t *key = NULL, *val = NULL;
2415 for (i = 0; i < 2; i++) {
2419 if (end - avio_tell(pb) <= 12)
2422 len = avio_rb32(pb);
2423 tag = avio_rl32(pb);
2424 avio_skip(pb, 4); // flags
2426 if (len < 12 || len - 12 > end - avio_tell(pb))
2430 if (tag == MKTAG('n', 'a', 'm', 'e'))
2432 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2439 *p = av_malloc(len + 1);
2442 avio_read(pb, *p, len);
2447 av_dict_set(&c->fc->metadata, key, val,
2448 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2452 avio_seek(pb, end, SEEK_SET);
2458 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2460 int64_t end = avio_tell(pb) + atom.size;
2466 len = avio_rb32(pb);
2467 tag = avio_rl32(pb);
2469 if (len > atom.size)
2472 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2473 uint8_t domain[128];
2476 avio_skip(pb, 4); // flags
2479 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2480 avio_skip(pb, len - domain_len);
2481 if (!strcmp(domain, "org.hydrogenaudio.replaygain"))
2482 return mov_read_replaygain(c, pb, end - avio_tell(pb));
2486 av_log(c->fc, AV_LOG_VERBOSE,
2487 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2491 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2493 while (atom.size > 8) {
2494 uint32_t tag = avio_rl32(pb);
2496 if (tag == MKTAG('h','d','l','r')) {
2497 avio_seek(pb, -8, SEEK_CUR);
2499 return mov_read_default(c, pb, atom);
2505 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2510 int64_t disp_transform[2];
2511 int display_matrix[3][3];
2513 MOVStreamContext *sc;
2517 if (c->fc->nb_streams < 1)
2519 st = c->fc->streams[c->fc->nb_streams-1];
2522 version = avio_r8(pb);
2523 flags = avio_rb24(pb);
2524 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2530 avio_rb32(pb); /* creation time */
2531 avio_rb32(pb); /* modification time */
2533 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2534 avio_rb32(pb); /* reserved */
2536 /* highlevel (considering edits) duration in movie timebase */
2537 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2538 avio_rb32(pb); /* reserved */
2539 avio_rb32(pb); /* reserved */
2541 avio_rb16(pb); /* layer */
2542 avio_rb16(pb); /* alternate group */
2543 avio_rb16(pb); /* volume */
2544 avio_rb16(pb); /* reserved */
2546 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2547 // they're kept in fixed point format through all calculations
2548 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2549 // side data, but the scale factor is not needed to calculate aspect ratio
2550 for (i = 0; i < 3; i++) {
2551 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2552 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2553 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2556 width = avio_rb32(pb); // 16.16 fixed point track width
2557 height = avio_rb32(pb); // 16.16 fixed point track height
2558 sc->width = width >> 16;
2559 sc->height = height >> 16;
2561 // save the matrix when it is not the default identity
2562 if (display_matrix[0][0] != (1 << 16) ||
2563 display_matrix[1][1] != (1 << 16) ||
2564 display_matrix[2][2] != (1 << 30) ||
2565 display_matrix[0][1] || display_matrix[0][2] ||
2566 display_matrix[1][0] || display_matrix[1][2] ||
2567 display_matrix[2][0] || display_matrix[2][1]) {
2570 av_freep(&sc->display_matrix);
2571 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2572 if (!sc->display_matrix)
2573 return AVERROR(ENOMEM);
2575 for (i = 0; i < 3; i++)
2576 for (j = 0; j < 3; j++)
2577 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2580 // transform the display width/height according to the matrix
2581 // skip this when the display matrix is the identity one
2582 // to keep the same scale, use [width height 1<<16]
2583 if (width && height && sc->display_matrix) {
2584 for (i = 0; i < 2; i++)
2586 (int64_t) width * display_matrix[0][i] +
2587 (int64_t) height * display_matrix[1][i] +
2588 ((int64_t) display_matrix[2][i] << 16);
2590 //sample aspect ratio is new width/height divided by old width/height
2591 if (disp_transform[0] > 0 && disp_transform[1] > 0)
2592 st->sample_aspect_ratio = av_d2q(
2593 ((double) disp_transform[0] * height) /
2594 ((double) disp_transform[1] * width), INT_MAX);
2599 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2601 MOVFragment *frag = &c->fragment;
2602 MOVTrackExt *trex = NULL;
2603 int flags, track_id, i;
2605 avio_r8(pb); /* version */
2606 flags = avio_rb24(pb);
2608 track_id = avio_rb32(pb);
2610 return AVERROR_INVALIDDATA;
2611 frag->track_id = track_id;
2612 for (i = 0; i < c->trex_count; i++)
2613 if (c->trex_data[i].track_id == frag->track_id) {
2614 trex = &c->trex_data[i];
2618 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2619 return AVERROR_INVALIDDATA;
2622 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2623 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2624 frag->moof_offset : frag->implicit_offset;
2625 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2627 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2628 avio_rb32(pb) : trex->duration;
2629 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2630 avio_rb32(pb) : trex->size;
2631 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2632 avio_rb32(pb) : trex->flags;
2633 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2637 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2639 c->chapter_track = avio_rb32(pb);
2643 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2648 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2649 return AVERROR_INVALIDDATA;
2650 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2651 sizeof(*c->trex_data))) < 0) {
2655 trex = &c->trex_data[c->trex_count++];
2656 avio_r8(pb); /* version */
2657 avio_rb24(pb); /* flags */
2658 trex->track_id = avio_rb32(pb);
2659 trex->stsd_id = avio_rb32(pb);
2660 trex->duration = avio_rb32(pb);
2661 trex->size = avio_rb32(pb);
2662 trex->flags = avio_rb32(pb);
2666 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2668 MOVFragment *frag = &c->fragment;
2669 AVStream *st = NULL;
2670 MOVStreamContext *sc;
2673 for (i = 0; i < c->fc->nb_streams; i++) {
2674 if (c->fc->streams[i]->id == frag->track_id) {
2675 st = c->fc->streams[i];
2680 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2681 return AVERROR_INVALIDDATA;
2684 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2686 version = avio_r8(pb);
2687 avio_rb24(pb); /* flags */
2689 sc->track_end = avio_rb64(pb);
2691 sc->track_end = avio_rb32(pb);
2696 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2698 MOVFragment *frag = &c->fragment;
2699 AVStream *st = NULL;
2700 MOVStreamContext *sc;
2704 int data_offset = 0;
2705 unsigned entries, first_sample_flags = frag->flags;
2706 int flags, distance, i, found_keyframe = 0, err;
2708 for (i = 0; i < c->fc->nb_streams; i++) {
2709 if (c->fc->streams[i]->id == frag->track_id) {
2710 st = c->fc->streams[i];
2715 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2716 return AVERROR_INVALIDDATA;
2719 if (sc->pseudo_stream_id+1 != frag->stsd_id)
2721 avio_r8(pb); /* version */
2722 flags = avio_rb24(pb);
2723 entries = avio_rb32(pb);
2724 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
2726 /* Always assume the presence of composition time offsets.
2727 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2728 * 1) in the initial movie, there are no samples.
2729 * 2) in the first movie fragment, there is only one sample without composition time offset.
2730 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2731 if (!sc->ctts_count && sc->sample_count)
2733 /* Complement ctts table if moov atom doesn't have ctts atom. */
2734 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
2736 return AVERROR(ENOMEM);
2737 sc->ctts_data = ctts_data;
2738 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
2739 sc->ctts_data[sc->ctts_count].duration = 0;
2742 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
2743 return AVERROR_INVALIDDATA;
2744 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
2745 sizeof(*sc->ctts_data))) < 0) {
2749 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
2750 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
2751 dts = sc->track_end - sc->time_offset;
2752 offset = frag->base_data_offset + data_offset;
2754 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
2755 for (i = 0; i < entries && !pb->eof_reached; i++) {
2756 unsigned sample_size = frag->size;
2757 int sample_flags = i ? frag->flags : first_sample_flags;
2758 unsigned sample_duration = frag->duration;
2761 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
2762 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
2763 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
2764 sc->ctts_data[sc->ctts_count].count = 1;
2765 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
2768 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
2770 else if (!found_keyframe)
2771 keyframe = found_keyframe =
2772 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
2773 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
2776 av_add_index_entry(st, offset, dts, sample_size, distance,
2777 keyframe ? AVINDEX_KEYFRAME : 0);
2778 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2779 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
2780 offset, dts, sample_size, distance, keyframe);
2782 dts += sample_duration;
2783 offset += sample_size;
2784 sc->data_size += sample_size;
2787 if (pb->eof_reached)
2790 frag->implicit_offset = offset;
2791 st->duration = sc->track_end = dts + sc->time_offset;
2795 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2796 /* like the files created with Adobe Premiere 5.0, for samples see */
2797 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
2798 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2803 return 0; /* continue */
2804 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2805 avio_skip(pb, atom.size - 4);
2808 atom.type = avio_rl32(pb);
2810 if (atom.type != MKTAG('m','d','a','t')) {
2811 avio_skip(pb, atom.size);
2814 err = mov_read_mdat(c, pb, atom);
2818 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2823 uint8_t *moov_data; /* uncompressed data */
2824 long cmov_len, moov_len;
2827 avio_rb32(pb); /* dcom atom */
2828 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
2829 return AVERROR_INVALIDDATA;
2830 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
2831 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
2832 return AVERROR_INVALIDDATA;
2834 avio_rb32(pb); /* cmvd atom */
2835 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
2836 return AVERROR_INVALIDDATA;
2837 moov_len = avio_rb32(pb); /* uncompressed size */
2838 cmov_len = atom.size - 6 * 4;
2840 cmov_data = av_malloc(cmov_len);
2842 return AVERROR(ENOMEM);
2843 moov_data = av_malloc(moov_len);
2846 return AVERROR(ENOMEM);
2848 avio_read(pb, cmov_data, cmov_len);
2849 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
2850 goto free_and_return;
2851 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
2852 goto free_and_return;
2853 atom.type = MKTAG('m','o','o','v');
2854 atom.size = moov_len;
2855 ret = mov_read_default(c, &ctx, atom);
2861 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
2862 return AVERROR(ENOSYS);
2866 /* edit list atom */
2867 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2869 MOVStreamContext *sc;
2870 int i, edit_count, version;
2872 if (c->fc->nb_streams < 1)
2874 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
2876 version = avio_r8(pb); /* version */
2877 avio_rb24(pb); /* flags */
2878 edit_count = avio_rb32(pb); /* entries */
2880 if ((uint64_t)edit_count*12+8 > atom.size)
2881 return AVERROR_INVALIDDATA;
2883 for (i=0; i<edit_count; i++){
2887 duration = avio_rb64(pb);
2888 time = avio_rb64(pb);
2890 duration = avio_rb32(pb); /* segment duration */
2891 time = (int32_t)avio_rb32(pb); /* media time */
2893 avio_rb32(pb); /* Media rate */
2894 if (i == 0 && time >= -1) {
2895 sc->time_offset = time != -1 ? time : -duration;
2900 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
2901 "a/v desync might occur, patch welcome\n");
2903 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
2907 static const MOVParseTableEntry mov_default_parse_table[] = {
2908 { MKTAG('a','v','s','s'), mov_read_extradata },
2909 { MKTAG('c','h','p','l'), mov_read_chpl },
2910 { MKTAG('c','o','6','4'), mov_read_stco },
2911 { MKTAG('c','o','l','r'), mov_read_colr },
2912 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
2913 { MKTAG('d','i','n','f'), mov_read_default },
2914 { MKTAG('d','r','e','f'), mov_read_dref },
2915 { MKTAG('e','d','t','s'), mov_read_default },
2916 { MKTAG('e','l','s','t'), mov_read_elst },
2917 { MKTAG('e','n','d','a'), mov_read_enda },
2918 { MKTAG('f','i','e','l'), mov_read_fiel },
2919 { MKTAG('f','t','y','p'), mov_read_ftyp },
2920 { MKTAG('g','l','b','l'), mov_read_glbl },
2921 { MKTAG('h','d','l','r'), mov_read_hdlr },
2922 { MKTAG('i','l','s','t'), mov_read_ilst },
2923 { MKTAG('j','p','2','h'), mov_read_extradata },
2924 { MKTAG('m','d','a','t'), mov_read_mdat },
2925 { MKTAG('m','d','h','d'), mov_read_mdhd },
2926 { MKTAG('m','d','i','a'), mov_read_default },
2927 { MKTAG('m','e','t','a'), mov_read_meta },
2928 { MKTAG('m','i','n','f'), mov_read_default },
2929 { MKTAG('m','o','o','f'), mov_read_moof },
2930 { MKTAG('m','o','o','v'), mov_read_moov },
2931 { MKTAG('m','v','e','x'), mov_read_default },
2932 { MKTAG('m','v','h','d'), mov_read_mvhd },
2933 { MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
2934 { MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
2935 { MKTAG('a','v','c','C'), mov_read_glbl },
2936 { MKTAG('p','a','s','p'), mov_read_pasp },
2937 { MKTAG('s','t','b','l'), mov_read_default },
2938 { MKTAG('s','t','c','o'), mov_read_stco },
2939 { MKTAG('s','t','p','s'), mov_read_stps },
2940 { MKTAG('s','t','r','f'), mov_read_strf },
2941 { MKTAG('s','t','s','c'), mov_read_stsc },
2942 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
2943 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
2944 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
2945 { MKTAG('s','t','t','s'), mov_read_stts },
2946 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
2947 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
2948 { MKTAG('t','f','d','t'), mov_read_tfdt },
2949 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
2950 { MKTAG('t','r','a','k'), mov_read_trak },
2951 { MKTAG('t','r','a','f'), mov_read_default },
2952 { MKTAG('t','r','e','f'), mov_read_default },
2953 { MKTAG('c','h','a','p'), mov_read_chap },
2954 { MKTAG('t','r','e','x'), mov_read_trex },
2955 { MKTAG('t','r','u','n'), mov_read_trun },
2956 { MKTAG('u','d','t','a'), mov_read_default },
2957 { MKTAG('w','a','v','e'), mov_read_wave },
2958 { MKTAG('e','s','d','s'), mov_read_esds },
2959 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
2960 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
2961 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
2962 { MKTAG('w','f','e','x'), mov_read_wfex },
2963 { MKTAG('c','m','o','v'), mov_read_cmov },
2964 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
2965 { MKTAG('d','v','c','1'), mov_read_dvc1 },
2966 { MKTAG('s','b','g','p'), mov_read_sbgp },
2967 { MKTAG('h','v','c','C'), mov_read_glbl },
2968 { MKTAG('-','-','-','-'), mov_read_custom },
2972 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2974 int64_t total_size = 0;
2979 atom.size = INT64_MAX;
2980 while (total_size + 8 < atom.size && !pb->eof_reached) {
2981 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
2984 if (atom.size >= 8) {
2985 a.size = avio_rb32(pb);
2986 a.type = avio_rl32(pb);
2988 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
2989 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
2991 if (a.size == 1) { /* 64 bit extended size */
2992 a.size = avio_rb64(pb) - 8;
2996 a.size = atom.size - total_size;
3003 a.size = FFMIN(a.size, atom.size - total_size);
3005 for (i = 0; mov_default_parse_table[i].type; i++)
3006 if (mov_default_parse_table[i].type == a.type) {
3007 parse = mov_default_parse_table[i].parse;
3011 // container is user data
3012 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3013 atom.type == MKTAG('i','l','s','t')))
3014 parse = mov_read_udta_string;
3016 if (!parse) { /* skip leaf atoms data */
3017 avio_skip(pb, a.size);
3019 int64_t start_pos = avio_tell(pb);
3021 int err = parse(c, pb, a);
3024 if (c->found_moov && c->found_mdat &&
3025 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3026 start_pos + a.size == avio_size(pb))) {
3027 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3028 c->next_root_atom = start_pos + a.size;
3031 left = a.size - avio_tell(pb) + start_pos;
3032 if (left > 0) /* skip garbage at atom end */
3033 avio_skip(pb, left);
3034 else if (left < 0) {
3035 av_log(c->fc, AV_LOG_WARNING,
3036 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3037 (char*)&a.type, -left);
3038 avio_seek(pb, left, SEEK_CUR);
3042 total_size += a.size;
3045 if (total_size < atom.size && atom.size < 0x7ffff)
3046 avio_skip(pb, atom.size - total_size);
3051 static int mov_probe(AVProbeData *p)
3053 unsigned int offset;
3057 /* check file header */
3060 /* ignore invalid offset */
3061 if ((offset + 8) > (unsigned int)p->buf_size)
3063 tag = AV_RL32(p->buf + offset + 4);
3065 /* check for obvious tags */
3066 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
3067 case MKTAG('m','o','o','v'):
3068 case MKTAG('m','d','a','t'):
3069 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3070 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3071 case MKTAG('f','t','y','p'):
3072 return AVPROBE_SCORE_MAX;
3073 /* those are more common words, so rate then a bit less */
3074 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3075 case MKTAG('w','i','d','e'):
3076 case MKTAG('f','r','e','e'):
3077 case MKTAG('j','u','n','k'):
3078 case MKTAG('p','i','c','t'):
3079 return AVPROBE_SCORE_MAX - 5;
3080 case MKTAG(0x82,0x82,0x7f,0x7d):
3081 case MKTAG('s','k','i','p'):
3082 case MKTAG('u','u','i','d'):
3083 case MKTAG('p','r','f','l'):
3084 offset = AV_RB32(p->buf+offset) + offset;
3085 /* if we only find those cause probedata is too small at least rate them */
3086 score = AVPROBE_SCORE_EXTENSION;
3089 /* unrecognized tag */
3095 // must be done after parsing all trak because there's no order requirement
3096 static void mov_read_chapters(AVFormatContext *s)
3098 MOVContext *mov = s->priv_data;
3099 AVStream *st = NULL;
3100 MOVStreamContext *sc;
3104 for (i = 0; i < s->nb_streams; i++)
3105 if (s->streams[i]->id == mov->chapter_track) {
3110 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3114 st->discard = AVDISCARD_ALL;
3116 cur_pos = avio_tell(sc->pb);
3118 for (i = 0; i < st->nb_index_entries; i++) {
3119 AVIndexEntry *sample = &st->index_entries[i];
3120 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3125 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3126 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3130 // the first two bytes are the length of the title
3131 len = avio_rb16(sc->pb);
3132 if (len > sample->size-2)
3134 title_len = 2*len + 1;
3135 if (!(title = av_mallocz(title_len)))
3138 // The samples could theoretically be in any encoding if there's an encd
3139 // atom following, but in practice are only utf-8 or utf-16, distinguished
3140 // instead by the presence of a BOM
3144 ch = avio_rb16(sc->pb);
3146 avio_get_str16be(sc->pb, len, title, title_len);
3147 else if (ch == 0xfffe)
3148 avio_get_str16le(sc->pb, len, title, title_len);
3151 if (len == 1 || len == 2)
3154 avio_get_str(sc->pb, len - 2, title + 2, title_len - 2);
3158 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3162 avio_seek(sc->pb, cur_pos, SEEK_SET);
3165 static int mov_read_close(AVFormatContext *s)
3167 MOVContext *mov = s->priv_data;
3170 for (i = 0; i < s->nb_streams; i++) {
3171 AVStream *st = s->streams[i];
3172 MOVStreamContext *sc = st->priv_data;
3174 av_freep(&sc->ctts_data);
3175 for (j = 0; j < sc->drefs_count; j++) {
3176 av_freep(&sc->drefs[j].path);
3177 av_freep(&sc->drefs[j].dir);
3179 av_freep(&sc->drefs);
3180 if (sc->pb && sc->pb != s->pb)
3183 av_freep(&sc->chunk_offsets);
3184 av_freep(&sc->stsc_data);
3185 av_freep(&sc->sample_sizes);
3186 av_freep(&sc->keyframes);
3187 av_freep(&sc->stts_data);
3188 av_freep(&sc->stps_data);
3189 av_freep(&sc->rap_group);
3190 av_freep(&sc->display_matrix);
3193 if (mov->dv_demux) {
3194 avformat_free_context(mov->dv_fctx);
3195 mov->dv_fctx = NULL;
3198 av_freep(&mov->trex_data);
3203 static int mov_read_header(AVFormatContext *s)
3205 MOVContext *mov = s->priv_data;
3206 AVIOContext *pb = s->pb;
3208 MOVAtom atom = { AV_RL32("root") };
3212 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3214 atom.size = avio_size(pb);
3216 atom.size = INT64_MAX;
3218 /* check MOV header */
3219 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3220 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
3224 if (!mov->found_moov) {
3225 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3227 return AVERROR_INVALIDDATA;
3229 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3231 if (pb->seekable && mov->chapter_track > 0)
3232 mov_read_chapters(s);
3234 for (i = 0; i < s->nb_streams; i++) {
3235 AVStream *st = s->streams[i];
3236 MOVStreamContext *sc = st->priv_data;
3238 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3239 if (st->codec->width <= 0 || st->codec->height <= 0) {
3240 st->codec->width = sc->width;
3241 st->codec->height = sc->height;
3243 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3244 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3250 if (mov->trex_data) {
3251 for (i = 0; i < s->nb_streams; i++) {
3252 AVStream *st = s->streams[i];
3253 MOVStreamContext *sc = st->priv_data;
3254 if (st->duration > 0)
3255 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3259 for (i = 0; i < s->nb_streams; i++) {
3260 AVStream *st = s->streams[i];
3261 MOVStreamContext *sc = st->priv_data;
3263 switch (st->codec->codec_type) {
3264 case AVMEDIA_TYPE_AUDIO:
3265 err = ff_replaygain_export(st, s->metadata);
3271 case AVMEDIA_TYPE_VIDEO:
3272 if (sc->display_matrix) {
3273 AVPacketSideData *sd, *tmp;
3275 tmp = av_realloc_array(st->side_data,
3276 st->nb_side_data + 1, sizeof(*tmp));
3278 return AVERROR(ENOMEM);
3280 st->side_data = tmp;
3283 sd = &st->side_data[st->nb_side_data - 1];
3284 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
3285 sd->size = sizeof(int32_t) * 9;
3286 sd->data = (uint8_t*)sc->display_matrix;
3287 sc->display_matrix = NULL;
3296 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
3298 AVIndexEntry *sample = NULL;
3299 int64_t best_dts = INT64_MAX;
3301 for (i = 0; i < s->nb_streams; i++) {
3302 AVStream *avst = s->streams[i];
3303 MOVStreamContext *msc = avst->priv_data;
3304 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
3305 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
3306 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
3307 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
3308 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
3310 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
3311 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
3312 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
3313 sample = current_sample;
3322 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
3324 MOVContext *mov = s->priv_data;
3325 MOVStreamContext *sc;
3326 AVIndexEntry *sample;
3327 AVStream *st = NULL;
3330 sample = mov_find_next_sample(s, &st);
3332 mov->found_mdat = 0;
3333 if (!mov->next_root_atom)
3335 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
3336 mov->next_root_atom = 0;
3337 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
3340 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
3344 /* must be done just before reading, to avoid infinite loop on sample */
3345 sc->current_sample++;
3347 if (st->discard != AVDISCARD_ALL) {
3348 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3349 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
3350 sc->ffindex, sample->pos);
3351 return AVERROR_INVALIDDATA;
3353 ret = av_get_packet(sc->pb, pkt, sample->size);
3356 if (sc->has_palette) {
3359 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
3361 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
3363 memcpy(pal, sc->palette, AVPALETTE_SIZE);
3364 sc->has_palette = 0;
3367 #if CONFIG_DV_DEMUXER
3368 if (mov->dv_demux && sc->dv_audio_container) {
3369 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
3372 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
3379 pkt->stream_index = sc->ffindex;
3380 pkt->dts = sample->timestamp;
3381 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
3382 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
3383 /* update ctts context */
3385 if (sc->ctts_index < sc->ctts_count &&
3386 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
3388 sc->ctts_sample = 0;
3391 pkt->dts = AV_NOPTS_VALUE;
3393 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
3394 st->index_entries[sc->current_sample].timestamp : st->duration;
3395 pkt->duration = next_dts - pkt->dts;
3396 pkt->pts = pkt->dts;
3398 if (st->discard == AVDISCARD_ALL)
3400 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
3401 pkt->pos = sample->pos;
3402 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
3403 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
3407 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
3409 MOVStreamContext *sc = st->priv_data;
3410 int sample, time_sample;
3413 sample = av_index_search_timestamp(st, timestamp, flags);
3414 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
3415 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
3417 if (sample < 0) /* not sure what to do */
3418 return AVERROR_INVALIDDATA;
3419 sc->current_sample = sample;
3420 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
3421 /* adjust ctts index */
3422 if (sc->ctts_data) {
3424 for (i = 0; i < sc->ctts_count; i++) {
3425 int next = time_sample + sc->ctts_data[i].count;
3426 if (next > sc->current_sample) {
3428 sc->ctts_sample = sc->current_sample - time_sample;
3437 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
3440 int64_t seek_timestamp, timestamp;
3444 if (stream_index >= s->nb_streams)
3445 return AVERROR_INVALIDDATA;
3446 if (sample_time < 0)
3449 st = s->streams[stream_index];
3450 sample = mov_seek_stream(s, st, sample_time, flags);
3454 /* adjust seek timestamp to found sample timestamp */
3455 seek_timestamp = st->index_entries[sample].timestamp;
3457 for (i = 0; i < s->nb_streams; i++) {
3459 if (stream_index == i)
3462 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
3463 mov_seek_stream(s, st, timestamp, flags);
3468 #define OFFSET(x) offsetof(MOVContext, x)
3469 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
3470 static const AVOption mov_options[] = {
3471 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
3472 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
3473 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
3474 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
3478 static const AVClass mov_class = {
3479 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
3480 .item_name = av_default_item_name,
3481 .option = mov_options,
3482 .version = LIBAVUTIL_VERSION_INT,
3485 AVInputFormat ff_mov_demuxer = {
3486 .name = "mov,mp4,m4a,3gp,3g2,mj2",
3487 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3488 .priv_class = &mov_class,
3489 .priv_data_size = sizeof(MOVContext),
3490 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
3491 .read_probe = mov_probe,
3492 .read_header = mov_read_header,
3493 .read_packet = mov_read_packet,
3494 .read_close = mov_read_close,
3495 .read_seek = mov_read_seek,