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 FFmpeg.
11 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 //#define MOV_EXPORT_ALL_METADATA
32 #include "libavutil/attributes.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/display.h"
35 #include "libavutil/intreadwrite.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/timecode.h"
42 #include "libavcodec/ac3tab.h"
45 #include "avio_internal.h"
48 #include "libavcodec/get_bits.h"
51 #include "replaygain.h"
57 #include "qtpalette.h"
63 /* those functions parse an atom */
64 /* links atom IDs to parse functions */
65 typedef struct MOVParseTableEntry {
67 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
71 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
73 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
74 unsigned len, const char *key)
78 short current, total = 0;
79 avio_rb16(pb); // unknown
80 current = avio_rb16(pb);
82 total = avio_rb16(pb);
84 snprintf(buf, sizeof(buf), "%d", current);
86 snprintf(buf, sizeof(buf), "%d/%d", current, total);
87 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
88 av_dict_set(&c->fc->metadata, key, buf, 0);
93 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
94 unsigned len, const char *key)
96 /* bypass padding bytes */
101 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
102 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
107 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
108 unsigned len, const char *key)
110 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
111 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
116 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
117 unsigned len, const char *key)
121 avio_r8(pb); // unknown
124 if (genre < 1 || genre > ID3v1_GENRE_MAX)
126 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
127 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
132 static const uint32_t mac_to_unicode[128] = {
133 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
134 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
135 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
136 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
137 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
138 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
139 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
140 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
141 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
142 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
143 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
144 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
145 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
146 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
147 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
148 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
151 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
152 char *dst, int dstlen)
155 char *end = dst+dstlen-1;
158 for (i = 0; i < len; i++) {
159 uint8_t t, c = avio_r8(pb);
160 if (c < 0x80 && p < end)
163 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
169 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
173 MOVStreamContext *sc;
178 case 0xd: id = AV_CODEC_ID_MJPEG; break;
179 case 0xe: id = AV_CODEC_ID_PNG; break;
180 case 0x1b: id = AV_CODEC_ID_BMP; break;
182 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
187 st = avformat_new_stream(c->fc, NULL);
189 return AVERROR(ENOMEM);
190 sc = av_mallocz(sizeof(*sc));
192 return AVERROR(ENOMEM);
195 ret = av_get_packet(pb, &pkt, len);
199 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
201 st->attached_pic = pkt;
202 st->attached_pic.stream_index = st->index;
203 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
205 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
206 st->codec->codec_id = id;
211 static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
212 unsigned len, const char *key)
214 char *value = av_malloc(len + 1);
216 return AVERROR(ENOMEM);
217 avio_read(pb, value, len);
219 return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
222 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
224 char language[4] = { 0 };
226 uint16_t langcode = 0;
227 double longitude, latitude;
228 const char *key = "location";
230 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
231 return AVERROR_INVALIDDATA;
233 avio_skip(pb, 4); // version+flags
234 langcode = avio_rb16(pb);
235 ff_mov_lang_to_iso639(langcode, language);
238 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
240 return AVERROR_INVALIDDATA;
241 avio_skip(pb, 1); // role
245 return AVERROR_INVALIDDATA;
246 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
247 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
249 // Try to output in the same format as the ?xyz field
250 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
251 if (*language && strcmp(language, "und")) {
253 snprintf(key2, sizeof(key2), "%s-%s", key, language);
254 av_dict_set(&c->fc->metadata, key2, buf, 0);
256 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
257 return av_dict_set(&c->fc->metadata, key, buf, 0);
260 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
262 #ifdef MOV_EXPORT_ALL_METADATA
265 char str[1024], key2[16], language[4] = {0};
266 const char *key = NULL;
267 uint16_t langcode = 0;
268 uint32_t data_type = 0, str_size;
269 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
272 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
273 case MKTAG(0xa9,'a','u','t'):
274 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
275 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
276 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
277 case MKTAG( 'c','p','i','l'): key = "compilation";
278 parse = mov_metadata_int8_no_padding; break;
279 case MKTAG( 'c','p','r','t'):
280 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
281 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
282 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
283 case MKTAG(0xa9,'c','m','t'):
284 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
285 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
286 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
287 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
288 case MKTAG( 'g','n','r','e'): key = "genre";
289 parse = mov_metadata_gnre; break;
290 case MKTAG(0xa9,'t','o','o'):
291 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
292 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
293 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
294 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
295 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
296 case MKTAG( 'd','e','s','c'): key = "description";break;
297 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
298 case MKTAG( 't','v','s','h'): key = "show"; break;
299 case MKTAG( 't','v','e','n'): key = "episode_id";break;
300 case MKTAG( 't','v','n','n'): key = "network"; break;
301 case MKTAG( 't','r','k','n'): key = "track";
302 parse = mov_metadata_track_or_disc_number; break;
303 case MKTAG( 'd','i','s','k'): key = "disc";
304 parse = mov_metadata_track_or_disc_number; break;
305 case MKTAG( 't','v','e','s'): key = "episode_sort";
306 parse = mov_metadata_int8_bypass_padding; break;
307 case MKTAG( 't','v','s','n'): key = "season_number";
308 parse = mov_metadata_int8_bypass_padding; break;
309 case MKTAG( 's','t','i','k'): key = "media_type";
310 parse = mov_metadata_int8_no_padding; break;
311 case MKTAG( 'h','d','v','d'): key = "hd_video";
312 parse = mov_metadata_int8_no_padding; break;
313 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
314 parse = mov_metadata_int8_no_padding; break;
315 case MKTAG( '@','P','R','M'):
316 return mov_metadata_raw(c, pb, atom.size, "premiere_version");
317 case MKTAG( '@','P','R','Q'):
318 return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
319 case MKTAG( 'l','o','c','i'):
320 return mov_metadata_loci(c, pb, atom.size);
321 case MKTAG( 'X','M','P','_'):
322 return mov_metadata_raw(c, pb, atom.size, "xmp");
325 if (c->itunes_metadata && atom.size > 8) {
326 int data_size = avio_rb32(pb);
327 int tag = avio_rl32(pb);
328 if (tag == MKTAG('d','a','t','a')) {
329 data_type = avio_rb32(pb); // type
330 avio_rb32(pb); // unknown
331 str_size = data_size - 16;
334 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
335 int ret = mov_read_covr(c, pb, data_type, str_size);
337 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
342 } else if (atom.size > 4 && key && !c->itunes_metadata) {
343 str_size = avio_rb16(pb); // string length
344 langcode = avio_rb16(pb);
345 ff_mov_lang_to_iso639(langcode, language);
348 str_size = atom.size;
350 #ifdef MOV_EXPORT_ALL_METADATA
352 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
360 return AVERROR_INVALIDDATA;
362 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
365 parse(c, pb, str_size, key);
367 if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
368 mov_read_mac_string(c, pb, str_size, str, sizeof(str));
370 int ret = avio_read(pb, str, str_size);
372 return ret < 0 ? ret : AVERROR_INVALIDDATA;
375 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
376 av_dict_set(&c->fc->metadata, key, str, 0);
377 if (*language && strcmp(language, "und")) {
378 snprintf(key2, sizeof(key2), "%s-%s", key, language);
379 av_dict_set(&c->fc->metadata, key2, str, 0);
382 av_dlog(c->fc, "lang \"%3s\" ", language);
383 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
384 key, str, (char*)&atom.type, str_size, atom.size);
389 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
392 int i, nb_chapters, str_len, version;
395 if ((atom.size -= 5) < 0)
398 version = avio_r8(pb);
401 avio_rb32(pb); // ???
402 nb_chapters = avio_r8(pb);
404 for (i = 0; i < nb_chapters; i++) {
408 start = avio_rb64(pb);
409 str_len = avio_r8(pb);
411 if ((atom.size -= 9+str_len) < 0)
414 avio_read(pb, str, str_len);
416 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
421 #define MIN_DATA_ENTRY_BOX_SIZE 12
422 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
425 MOVStreamContext *sc;
428 if (c->fc->nb_streams < 1)
430 st = c->fc->streams[c->fc->nb_streams-1];
433 avio_rb32(pb); // version + flags
434 entries = avio_rb32(pb);
435 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
436 entries >= UINT_MAX / sizeof(*sc->drefs))
437 return AVERROR_INVALIDDATA;
440 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
442 return AVERROR(ENOMEM);
443 sc->drefs_count = entries;
445 for (i = 0; i < sc->drefs_count; i++) {
446 MOVDref *dref = &sc->drefs[i];
447 uint32_t size = avio_rb32(pb);
448 int64_t next = avio_tell(pb) + size - 4;
451 return AVERROR_INVALIDDATA;
453 dref->type = avio_rl32(pb);
454 avio_rb32(pb); // version + flags
455 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
457 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
458 /* macintosh alias record */
459 uint16_t volume_len, len;
464 volume_len = avio_r8(pb);
465 volume_len = FFMIN(volume_len, 27);
466 avio_read(pb, dref->volume, 27);
467 dref->volume[volume_len] = 0;
468 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
473 len = FFMIN(len, 63);
474 avio_read(pb, dref->filename, 63);
475 dref->filename[len] = 0;
476 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
480 /* read next level up_from_alias/down_to_target */
481 dref->nlvl_from = avio_rb16(pb);
482 dref->nlvl_to = avio_rb16(pb);
483 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
484 dref->nlvl_from, dref->nlvl_to);
488 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
491 type = avio_rb16(pb);
493 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
496 if (type == 2) { // absolute path
498 dref->path = av_mallocz(len+1);
500 return AVERROR(ENOMEM);
501 avio_read(pb, dref->path, len);
502 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
504 memmove(dref->path, dref->path+volume_len, len);
507 for (j = 0; j < len; j++)
508 if (dref->path[j] == ':')
510 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
511 } else if (type == 0) { // directory name
513 dref->dir = av_malloc(len+1);
515 return AVERROR(ENOMEM);
516 if (avio_read(pb, dref->dir, len) != len)
517 return AVERROR_INVALIDDATA;
519 for (j = 0; j < len; j++)
520 if (dref->dir[j] == ':')
522 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
527 avio_seek(pb, next, SEEK_SET);
532 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
536 uint32_t av_unused ctype;
540 if (c->fc->nb_streams < 1) // meta before first trak
543 st = c->fc->streams[c->fc->nb_streams-1];
545 avio_r8(pb); /* version */
546 avio_rb24(pb); /* flags */
549 ctype = avio_rl32(pb);
550 type = avio_rl32(pb); /* component subtype */
552 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
553 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
555 if (type == MKTAG('v','i','d','e'))
556 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
557 else if (type == MKTAG('s','o','u','n'))
558 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
559 else if (type == MKTAG('m','1','a',' '))
560 st->codec->codec_id = AV_CODEC_ID_MP2;
561 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
562 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
564 avio_rb32(pb); /* component manufacture */
565 avio_rb32(pb); /* component flags */
566 avio_rb32(pb); /* component flags mask */
568 title_size = atom.size - 24;
569 if (title_size > 0) {
570 title_str = av_malloc(title_size + 1); /* Add null terminator */
572 return AVERROR(ENOMEM);
573 avio_read(pb, title_str, title_size);
574 title_str[title_size] = 0;
576 av_dict_set(&st->metadata, "handler_name", title_str +
577 (!c->isom && title_str[0] == title_size - 1), 0);
578 av_freep(&title_str);
584 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
589 if (fc->nb_streams < 1)
591 st = fc->streams[fc->nb_streams-1];
593 avio_rb32(pb); /* version + flags */
594 ff_mp4_read_descr(fc, pb, &tag);
595 if (tag == MP4ESDescrTag) {
596 ff_mp4_parse_es_descr(pb, NULL);
598 avio_rb16(pb); /* ID */
600 ff_mp4_read_descr(fc, pb, &tag);
601 if (tag == MP4DecConfigDescrTag)
602 ff_mp4_read_dec_config_descr(fc, st, pb);
606 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
608 return ff_mov_read_esds(c->fc, pb);
611 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
614 int ac3info, acmod, lfeon, bsmod;
616 if (c->fc->nb_streams < 1)
618 st = c->fc->streams[c->fc->nb_streams-1];
620 ac3info = avio_rb24(pb);
621 bsmod = (ac3info >> 14) & 0x7;
622 acmod = (ac3info >> 11) & 0x7;
623 lfeon = (ac3info >> 10) & 0x1;
624 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
625 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
627 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
628 st->codec->audio_service_type = bsmod;
629 if (st->codec->channels > 1 && bsmod == 0x7)
630 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
635 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
638 int eac3info, acmod, lfeon, bsmod;
640 if (c->fc->nb_streams < 1)
642 st = c->fc->streams[c->fc->nb_streams-1];
644 /* No need to parse fields for additional independent substreams and its
645 * associated dependent substreams since libavcodec's E-AC-3 decoder
646 * does not support them yet. */
647 avio_rb16(pb); /* data_rate and num_ind_sub */
648 eac3info = avio_rb24(pb);
649 bsmod = (eac3info >> 12) & 0x1f;
650 acmod = (eac3info >> 9) & 0x7;
651 lfeon = (eac3info >> 8) & 0x1;
652 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
654 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
655 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
656 st->codec->audio_service_type = bsmod;
657 if (st->codec->channels > 1 && bsmod == 0x7)
658 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
663 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
667 if (c->fc->nb_streams < 1)
669 st = c->fc->streams[c->fc->nb_streams-1];
674 /* skip version and flags */
677 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
682 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
686 if (c->fc->nb_streams < 1)
688 st = c->fc->streams[c->fc->nb_streams-1];
690 if (ff_get_wav_header(pb, st->codec, atom.size) < 0) {
691 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
697 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
699 const int num = avio_rb32(pb);
700 const int den = avio_rb32(pb);
703 if (c->fc->nb_streams < 1)
705 st = c->fc->streams[c->fc->nb_streams-1];
707 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
708 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
709 av_log(c->fc, AV_LOG_WARNING,
710 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
711 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
713 } else if (den != 0) {
714 st->sample_aspect_ratio.num = num;
715 st->sample_aspect_ratio.den = den;
720 /* this atom contains actual media data */
721 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
723 if (atom.size == 0) /* wrong one (MP4) */
726 return 0; /* now go for moov */
729 /* read major brand, minor version and compatible brands and store them as metadata */
730 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
734 char* comp_brands_str;
735 uint8_t type[5] = {0};
737 avio_read(pb, type, 4);
738 if (strcmp(type, "qt "))
740 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
741 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
742 minor_ver = avio_rb32(pb); /* minor version */
743 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
745 comp_brand_size = atom.size - 8;
746 if (comp_brand_size < 0)
747 return AVERROR_INVALIDDATA;
748 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
749 if (!comp_brands_str)
750 return AVERROR(ENOMEM);
751 avio_read(pb, comp_brands_str, comp_brand_size);
752 comp_brands_str[comp_brand_size] = 0;
753 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
754 av_freep(&comp_brands_str);
759 /* this atom should contain all header atoms */
760 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
765 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
766 avio_skip(pb, atom.size);
770 if ((ret = mov_read_default(c, pb, atom)) < 0)
772 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
773 /* so we don't parse the whole file if over a network */
775 return 0; /* now go for mdat */
778 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
780 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
781 c->has_looked_for_mfra = 1;
784 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
786 if ((ret = mov_read_mfra(c, pb)) < 0) {
787 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
788 "read the mfra (may be a live ismv)\n");
791 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
792 "seekable, can not look for mfra\n");
795 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
796 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
797 return mov_read_default(c, pb, atom);
800 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
806 if(time >= 2082844800)
807 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
809 ptm = gmtime(&timet);
811 strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
812 av_dict_set(metadata, "creation_time", buffer, 0);
816 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
819 MOVStreamContext *sc;
821 char language[4] = {0};
823 int64_t creation_time;
825 if (c->fc->nb_streams < 1)
827 st = c->fc->streams[c->fc->nb_streams-1];
830 if (sc->time_scale) {
831 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
832 return AVERROR_INVALIDDATA;
835 version = avio_r8(pb);
837 avpriv_request_sample(c->fc, "Version %d", version);
838 return AVERROR_PATCHWELCOME;
840 avio_rb24(pb); /* flags */
842 creation_time = avio_rb64(pb);
845 creation_time = avio_rb32(pb);
846 avio_rb32(pb); /* modification time */
848 mov_metadata_creation_time(&st->metadata, creation_time);
850 sc->time_scale = avio_rb32(pb);
851 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
853 lang = avio_rb16(pb); /* language */
854 if (ff_mov_lang_to_iso639(lang, language))
855 av_dict_set(&st->metadata, "language", language, 0);
856 avio_rb16(pb); /* quality */
861 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
863 int64_t creation_time;
864 int version = avio_r8(pb); /* version */
865 avio_rb24(pb); /* flags */
868 creation_time = avio_rb64(pb);
871 creation_time = avio_rb32(pb);
872 avio_rb32(pb); /* modification time */
874 mov_metadata_creation_time(&c->fc->metadata, creation_time);
875 c->time_scale = avio_rb32(pb); /* time scale */
877 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
879 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
880 // set the AVCodecContext duration because the duration of individual tracks
882 if (c->time_scale > 0 && !c->trex_data)
883 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
884 avio_rb32(pb); /* preferred scale */
886 avio_rb16(pb); /* preferred volume */
888 avio_skip(pb, 10); /* reserved */
890 avio_skip(pb, 36); /* display matrix */
892 avio_rb32(pb); /* preview time */
893 avio_rb32(pb); /* preview duration */
894 avio_rb32(pb); /* poster time */
895 avio_rb32(pb); /* selection time */
896 avio_rb32(pb); /* selection duration */
897 avio_rb32(pb); /* current time */
898 avio_rb32(pb); /* next track ID */
902 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
907 if (c->fc->nb_streams < 1)
909 st = c->fc->streams[c->fc->nb_streams-1];
911 little_endian = avio_rb16(pb) & 0xFF;
912 av_dlog(c->fc, "enda %d\n", little_endian);
913 if (little_endian == 1) {
914 switch (st->codec->codec_id) {
915 case AV_CODEC_ID_PCM_S24BE:
916 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
918 case AV_CODEC_ID_PCM_S32BE:
919 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
921 case AV_CODEC_ID_PCM_F32BE:
922 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
924 case AV_CODEC_ID_PCM_F64BE:
925 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
934 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
937 char color_parameter_type[5] = { 0 };
938 int color_primaries, color_trc, color_matrix;
940 if (c->fc->nb_streams < 1)
942 st = c->fc->streams[c->fc->nb_streams - 1];
944 avio_read(pb, color_parameter_type, 4);
945 if (strncmp(color_parameter_type, "nclx", 4) &&
946 strncmp(color_parameter_type, "nclc", 4)) {
947 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
948 color_parameter_type);
952 color_primaries = avio_rb16(pb);
953 color_trc = avio_rb16(pb);
954 color_matrix = avio_rb16(pb);
956 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
957 color_parameter_type, color_primaries, color_trc, color_matrix);
960 uint8_t color_range = avio_r8(pb) >> 7;
961 av_dlog(c->fc, " full %"PRIu8"", color_range);
963 st->codec->color_range = AVCOL_RANGE_JPEG;
965 st->codec->color_range = AVCOL_RANGE_MPEG;
966 /* 14496-12 references JPEG XR specs (rather than the more complete
967 * 23001-8) so some adjusting is required */
968 if (color_primaries >= AVCOL_PRI_FILM)
969 color_primaries = AVCOL_PRI_UNSPECIFIED;
970 if (color_trc >= AVCOL_TRC_LINEAR || color_trc <= AVCOL_TRC_LOG_SQRT ||
971 color_trc >= AVCOL_TRC_BT2020_10)
972 color_trc = AVCOL_TRC_UNSPECIFIED;
973 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
974 color_matrix = AVCOL_SPC_UNSPECIFIED;
975 st->codec->color_primaries = color_primaries;
976 st->codec->color_trc = color_trc;
977 st->codec->colorspace = color_matrix;
979 /* color primaries, Table 4-4 */
980 switch (color_primaries) {
981 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
982 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
983 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
985 /* color transfer, Table 4-5 */
987 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
988 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
990 /* color matrix, Table 4-6 */
991 switch (color_matrix) {
992 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
993 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
994 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
997 av_dlog(c->fc, "\n");
1002 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1005 unsigned mov_field_order;
1006 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1008 if (c->fc->nb_streams < 1) // will happen with jp2 files
1010 st = c->fc->streams[c->fc->nb_streams-1];
1012 return AVERROR_INVALIDDATA;
1013 mov_field_order = avio_rb16(pb);
1014 if ((mov_field_order & 0xFF00) == 0x0100)
1015 decoded_field_order = AV_FIELD_PROGRESSIVE;
1016 else if ((mov_field_order & 0xFF00) == 0x0200) {
1017 switch (mov_field_order & 0xFF) {
1018 case 0x01: decoded_field_order = AV_FIELD_TT;
1020 case 0x06: decoded_field_order = AV_FIELD_BB;
1022 case 0x09: decoded_field_order = AV_FIELD_TB;
1024 case 0x0E: decoded_field_order = AV_FIELD_BT;
1028 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1029 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1031 st->codec->field_order = decoded_field_order;
1036 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1037 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1038 enum AVCodecID codec_id)
1045 if (c->fc->nb_streams < 1) // will happen with jp2 files
1047 st= c->fc->streams[c->fc->nb_streams-1];
1049 if (st->codec->codec_id != codec_id)
1050 return 0; /* unexpected codec_id - don't mess with extradata */
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 err = avio_read(pb, buf + 8, atom.size);
1066 } else if (err < atom.size) {
1067 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1068 st->codec->extradata_size -= atom.size - err;
1070 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1074 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1075 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1077 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1080 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1082 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1085 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1087 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1090 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1092 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1094 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1098 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1100 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1102 if (!ret && c->fc->nb_streams >= 1) {
1103 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1104 if (avctx->extradata_size >= 40) {
1105 avctx->height = AV_RB16(&avctx->extradata[36]);
1106 avctx->width = AV_RB16(&avctx->extradata[38]);
1112 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1114 if (c->fc->nb_streams >= 1) {
1115 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1116 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1117 codec->codec_id == AV_CODEC_ID_H264 &&
1120 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1121 if (avio_rb16(pb) == 0xd4d)
1122 codec->width = 1440;
1127 return mov_read_avid(c, pb, atom);
1130 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1132 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1135 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1139 if (c->fc->nb_streams < 1)
1141 st = c->fc->streams[c->fc->nb_streams-1];
1143 if ((uint64_t)atom.size > (1<<30))
1144 return AVERROR_INVALIDDATA;
1146 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1147 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1148 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1149 // pass all frma atom to codec, needed at least for QDMC and QDM2
1150 av_free(st->codec->extradata);
1151 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1152 return AVERROR(ENOMEM);
1153 } else if (atom.size > 8) { /* to read frma, esds atoms */
1155 if ((ret = mov_read_default(c, pb, atom)) < 0)
1158 avio_skip(pb, atom.size);
1163 * This function reads atom content and puts data in extradata without tag
1164 * nor size unlike mov_read_extradata.
1166 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1170 if (c->fc->nb_streams < 1)
1172 st = c->fc->streams[c->fc->nb_streams-1];
1174 if ((uint64_t)atom.size > (1<<30))
1175 return AVERROR_INVALIDDATA;
1177 if (atom.size >= 10) {
1178 // Broken files created by legacy versions of libavformat will
1179 // wrap a whole fiel atom inside of a glbl atom.
1180 unsigned size = avio_rb32(pb);
1181 unsigned type = avio_rl32(pb);
1182 avio_seek(pb, -8, SEEK_CUR);
1183 if (type == MKTAG('f','i','e','l') && size == atom.size)
1184 return mov_read_default(c, pb, atom);
1186 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1187 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1190 av_free(st->codec->extradata);
1191 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1192 return AVERROR(ENOMEM);
1197 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1200 uint8_t profile_level;
1203 if (c->fc->nb_streams < 1)
1205 st = c->fc->streams[c->fc->nb_streams-1];
1207 if (atom.size >= (1<<28) || atom.size < 7)
1208 return AVERROR_INVALIDDATA;
1210 profile_level = avio_r8(pb);
1211 if ((profile_level & 0xf0) != 0xc0)
1214 avio_seek(pb, 6, SEEK_CUR);
1215 av_free(st->codec->extradata);
1216 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1223 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1224 * but can have extradata appended at the end after the 40 bytes belonging
1227 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1231 if (c->fc->nb_streams < 1)
1233 if (atom.size <= 40)
1235 st = c->fc->streams[c->fc->nb_streams-1];
1237 if ((uint64_t)atom.size > (1<<30))
1238 return AVERROR_INVALIDDATA;
1241 av_free(st->codec->extradata);
1242 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1243 return AVERROR(ENOMEM);
1247 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1250 MOVStreamContext *sc;
1251 unsigned int i, entries;
1253 if (c->fc->nb_streams < 1)
1255 st = c->fc->streams[c->fc->nb_streams-1];
1258 avio_r8(pb); /* version */
1259 avio_rb24(pb); /* flags */
1261 entries = avio_rb32(pb);
1265 if (entries >= UINT_MAX/sizeof(int64_t))
1266 return AVERROR_INVALIDDATA;
1268 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1269 if (!sc->chunk_offsets)
1270 return AVERROR(ENOMEM);
1271 sc->chunk_count = entries;
1273 if (atom.type == MKTAG('s','t','c','o'))
1274 for (i = 0; i < entries && !pb->eof_reached; i++)
1275 sc->chunk_offsets[i] = avio_rb32(pb);
1276 else if (atom.type == MKTAG('c','o','6','4'))
1277 for (i = 0; i < entries && !pb->eof_reached; i++)
1278 sc->chunk_offsets[i] = avio_rb64(pb);
1280 return AVERROR_INVALIDDATA;
1282 sc->chunk_count = i;
1284 if (pb->eof_reached)
1291 * Compute codec id for 'lpcm' tag.
1292 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1294 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1301 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1304 static int mov_codec_id(AVStream *st, uint32_t format)
1306 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1309 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1310 (format & 0xFFFF) == 'T' + ('S' << 8)))
1311 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1313 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1314 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1315 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1316 /* skip old asf mpeg4 tag */
1317 format && format != MKTAG('m','p','4','s')) {
1318 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1320 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1322 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1323 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1324 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1325 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1326 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1328 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1332 st->codec->codec_tag = format;
1337 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1338 AVStream *st, MOVStreamContext *sc)
1340 uint8_t codec_name[32];
1341 unsigned int color_depth, len, j;
1342 int color_greyscale;
1345 avio_rb16(pb); /* version */
1346 avio_rb16(pb); /* revision level */
1347 avio_rb32(pb); /* vendor */
1348 avio_rb32(pb); /* temporal quality */
1349 avio_rb32(pb); /* spatial quality */
1351 st->codec->width = avio_rb16(pb); /* width */
1352 st->codec->height = avio_rb16(pb); /* height */
1354 avio_rb32(pb); /* horiz resolution */
1355 avio_rb32(pb); /* vert resolution */
1356 avio_rb32(pb); /* data size, always 0 */
1357 avio_rb16(pb); /* frames per samples */
1359 len = avio_r8(pb); /* codec name, pascal string */
1362 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1364 avio_skip(pb, 31 - len);
1367 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1369 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1370 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1371 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1372 st->codec->width &= ~1;
1373 st->codec->height &= ~1;
1375 /* Flash Media Server uses tag H263 with Sorenson Spark */
1376 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1377 !memcmp(codec_name, "Sorenson H263", 13))
1378 st->codec->codec_id = AV_CODEC_ID_FLV1;
1380 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1381 color_table_id = avio_rb16(pb); /* colortable id */
1382 av_dlog(c->fc, "depth %d, ctab id %d\n",
1383 st->codec->bits_per_coded_sample, color_table_id);
1384 /* figure out the palette situation */
1385 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1386 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1387 /* Do not create a greyscale palette for cinepak */
1388 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1391 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1392 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1393 /* for palette traversal */
1394 unsigned int color_start, color_count, color_end;
1395 unsigned char a, r, g, b;
1397 if (color_greyscale) {
1398 int color_index, color_dec;
1399 /* compute the greyscale palette */
1400 st->codec->bits_per_coded_sample = color_depth;
1401 color_count = 1 << color_depth;
1403 color_dec = 256 / (color_count - 1);
1404 for (j = 0; j < color_count; j++) {
1405 r = g = b = color_index;
1406 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1407 color_index -= color_dec;
1408 if (color_index < 0)
1411 } else if (color_table_id) {
1412 const uint8_t *color_table;
1413 /* if flag bit 3 is set, use the default palette */
1414 color_count = 1 << color_depth;
1415 if (color_depth == 2)
1416 color_table = ff_qt_default_palette_4;
1417 else if (color_depth == 4)
1418 color_table = ff_qt_default_palette_16;
1420 color_table = ff_qt_default_palette_256;
1422 for (j = 0; j < color_count; j++) {
1423 r = color_table[j * 3 + 0];
1424 g = color_table[j * 3 + 1];
1425 b = color_table[j * 3 + 2];
1426 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1429 /* load the palette from the file */
1430 color_start = avio_rb32(pb);
1431 color_count = avio_rb16(pb);
1432 color_end = avio_rb16(pb);
1433 if ((color_start <= 255) && (color_end <= 255)) {
1434 for (j = color_start; j <= color_end; j++) {
1435 /* each A, R, G, or B component is 16 bits;
1436 * only use the top 8 bits */
1445 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1449 sc->has_palette = 1;
1453 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1454 AVStream *st, MOVStreamContext *sc)
1456 int bits_per_sample, flags;
1457 uint16_t version = avio_rb16(pb);
1458 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1460 avio_rb16(pb); /* revision level */
1461 avio_rb32(pb); /* vendor */
1463 st->codec->channels = avio_rb16(pb); /* channel count */
1464 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1465 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1467 sc->audio_cid = avio_rb16(pb);
1468 avio_rb16(pb); /* packet size = 0 */
1470 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1472 // Read QT version 1 fields. In version 0 these do not exist.
1473 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1475 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1478 sc->samples_per_frame = avio_rb32(pb);
1479 avio_rb32(pb); /* bytes per packet */
1480 sc->bytes_per_frame = avio_rb32(pb);
1481 avio_rb32(pb); /* bytes per sample */
1482 } else if (version == 2) {
1483 avio_rb32(pb); /* sizeof struct only */
1484 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1485 st->codec->channels = avio_rb32(pb);
1486 avio_rb32(pb); /* always 0x7F000000 */
1487 st->codec->bits_per_coded_sample = avio_rb32(pb);
1489 flags = avio_rb32(pb); /* lpcm format specific flag */
1490 sc->bytes_per_frame = avio_rb32(pb);
1491 sc->samples_per_frame = avio_rb32(pb);
1492 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1493 st->codec->codec_id =
1494 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1499 switch (st->codec->codec_id) {
1500 case AV_CODEC_ID_PCM_S8:
1501 case AV_CODEC_ID_PCM_U8:
1502 if (st->codec->bits_per_coded_sample == 16)
1503 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1505 case AV_CODEC_ID_PCM_S16LE:
1506 case AV_CODEC_ID_PCM_S16BE:
1507 if (st->codec->bits_per_coded_sample == 8)
1508 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1509 else if (st->codec->bits_per_coded_sample == 24)
1510 st->codec->codec_id =
1511 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1512 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1513 else if (st->codec->bits_per_coded_sample == 32)
1514 st->codec->codec_id =
1515 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1516 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1518 /* set values for old format before stsd version 1 appeared */
1519 case AV_CODEC_ID_MACE3:
1520 sc->samples_per_frame = 6;
1521 sc->bytes_per_frame = 2 * st->codec->channels;
1523 case AV_CODEC_ID_MACE6:
1524 sc->samples_per_frame = 6;
1525 sc->bytes_per_frame = 1 * st->codec->channels;
1527 case AV_CODEC_ID_ADPCM_IMA_QT:
1528 sc->samples_per_frame = 64;
1529 sc->bytes_per_frame = 34 * st->codec->channels;
1531 case AV_CODEC_ID_GSM:
1532 sc->samples_per_frame = 160;
1533 sc->bytes_per_frame = 33;
1539 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1540 if (bits_per_sample) {
1541 st->codec->bits_per_coded_sample = bits_per_sample;
1542 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1546 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1547 AVStream *st, MOVStreamContext *sc,
1550 // ttxt stsd contains display flags, justification, background
1551 // color, fonts, and default styles, so fake an atom to read it
1552 MOVAtom fake_atom = { .size = size };
1553 // mp4s contains a regular esds atom
1554 if (st->codec->codec_tag != AV_RL32("mp4s"))
1555 mov_read_glbl(c, pb, fake_atom);
1556 st->codec->width = sc->width;
1557 st->codec->height = sc->height;
1560 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1565 y = (ycbcr >> 16) & 0xFF;
1566 cr = (ycbcr >> 8) & 0xFF;
1569 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1570 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1571 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1573 return (r << 16) | (g << 8) | b;
1576 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1578 char buf[256] = {0};
1579 uint8_t *src = st->codec->extradata;
1582 if (st->codec->extradata_size != 64)
1585 if (st->codec->width > 0 && st->codec->height > 0)
1586 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1587 st->codec->width, st->codec->height);
1588 av_strlcat(buf, "palette: ", sizeof(buf));
1590 for (i = 0; i < 16; i++) {
1591 uint32_t yuv = AV_RB32(src + i * 4);
1592 uint32_t rgba = yuv_to_rgba(yuv);
1594 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1597 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1600 av_freep(&st->codec->extradata);
1601 st->codec->extradata_size = 0;
1602 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1603 if (!st->codec->extradata)
1604 return AVERROR(ENOMEM);
1605 st->codec->extradata_size = strlen(buf);
1606 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1611 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1612 AVStream *st, MOVStreamContext *sc,
1615 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1616 if (ff_get_extradata(st->codec, pb, size) < 0)
1617 return AVERROR(ENOMEM);
1619 MOVStreamContext *tmcd_ctx = st->priv_data;
1621 val = AV_RB32(st->codec->extradata + 4);
1622 tmcd_ctx->tmcd_flags = val;
1624 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1625 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1626 st->codec->time_base.num = 1;
1628 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1629 uint32_t format = AV_RB32(st->codec->extradata + 22);
1630 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1631 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1632 if (str_size > 0 && size >= (int)str_size + 26) {
1633 char *reel_name = av_malloc(str_size + 1);
1635 return AVERROR(ENOMEM);
1636 memcpy(reel_name, st->codec->extradata + 30, str_size);
1637 reel_name[str_size] = 0; /* Add null terminator */
1638 /* don't add reel_name if emtpy string */
1639 if (*reel_name == 0) {
1642 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1649 /* other codec type, just skip (rtp, mp4s ...) */
1650 avio_skip(pb, size);
1655 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1656 AVStream *st, MOVStreamContext *sc)
1658 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1659 !st->codec->sample_rate && sc->time_scale > 1)
1660 st->codec->sample_rate = sc->time_scale;
1662 /* special codec parameters handling */
1663 switch (st->codec->codec_id) {
1664 #if CONFIG_DV_DEMUXER
1665 case AV_CODEC_ID_DVAUDIO:
1666 c->dv_fctx = avformat_alloc_context();
1667 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1669 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1670 return AVERROR(ENOMEM);
1672 sc->dv_audio_container = 1;
1673 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1676 /* no ifdef since parameters are always those */
1677 case AV_CODEC_ID_QCELP:
1678 st->codec->channels = 1;
1679 // force sample rate for qcelp when not stored in mov
1680 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1681 st->codec->sample_rate = 8000;
1682 // FIXME: Why is the following needed for some files?
1683 sc->samples_per_frame = 160;
1684 if (!sc->bytes_per_frame)
1685 sc->bytes_per_frame = 35;
1687 case AV_CODEC_ID_AMR_NB:
1688 st->codec->channels = 1;
1689 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1690 st->codec->sample_rate = 8000;
1692 case AV_CODEC_ID_AMR_WB:
1693 st->codec->channels = 1;
1694 st->codec->sample_rate = 16000;
1696 case AV_CODEC_ID_MP2:
1697 case AV_CODEC_ID_MP3:
1698 /* force type after stsd for m1a hdlr */
1699 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1700 st->need_parsing = AVSTREAM_PARSE_FULL;
1702 case AV_CODEC_ID_GSM:
1703 case AV_CODEC_ID_ADPCM_MS:
1704 case AV_CODEC_ID_ADPCM_IMA_WAV:
1705 case AV_CODEC_ID_ILBC:
1706 case AV_CODEC_ID_MACE3:
1707 case AV_CODEC_ID_MACE6:
1708 case AV_CODEC_ID_QDM2:
1709 st->codec->block_align = sc->bytes_per_frame;
1711 case AV_CODEC_ID_ALAC:
1712 if (st->codec->extradata_size == 36) {
1713 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1714 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1717 case AV_CODEC_ID_AC3:
1718 case AV_CODEC_ID_EAC3:
1719 case AV_CODEC_ID_MPEG1VIDEO:
1720 case AV_CODEC_ID_VC1:
1721 st->need_parsing = AVSTREAM_PARSE_FULL;
1729 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1730 int codec_tag, int format,
1733 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1736 (codec_tag != format &&
1737 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1738 : codec_tag != MKTAG('j','p','e','g')))) {
1739 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1740 * export it as a separate AVStream but this needs a few changes
1741 * in the MOV demuxer, patch welcome. */
1743 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1744 avio_skip(pb, size);
1747 if ( codec_tag == AV_RL32("avc1") ||
1748 codec_tag == AV_RL32("hvc1") ||
1749 codec_tag == AV_RL32("hev1")
1751 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1756 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1759 MOVStreamContext *sc;
1760 int pseudo_stream_id;
1762 if (c->fc->nb_streams < 1)
1764 st = c->fc->streams[c->fc->nb_streams-1];
1767 for (pseudo_stream_id = 0;
1768 pseudo_stream_id < entries && !pb->eof_reached;
1769 pseudo_stream_id++) {
1770 //Parsing Sample description table
1772 int ret, dref_id = 1;
1773 MOVAtom a = { AV_RL32("stsd") };
1774 int64_t start_pos = avio_tell(pb);
1775 int64_t size = avio_rb32(pb); /* size */
1776 uint32_t format = avio_rl32(pb); /* data format */
1779 avio_rb32(pb); /* reserved */
1780 avio_rb16(pb); /* reserved */
1781 dref_id = avio_rb16(pb);
1782 }else if (size <= 7){
1783 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1784 return AVERROR_INVALIDDATA;
1787 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1788 size - (avio_tell(pb) - start_pos)))
1791 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1792 sc->dref_id= dref_id;
1794 id = mov_codec_id(st, format);
1796 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1797 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1798 (format >> 24) & 0xff, st->codec->codec_type);
1800 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1801 st->codec->codec_id = id;
1802 mov_parse_stsd_video(c, pb, st, sc);
1803 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1804 st->codec->codec_id = id;
1805 mov_parse_stsd_audio(c, pb, st, sc);
1806 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1807 st->codec->codec_id = id;
1808 mov_parse_stsd_subtitle(c, pb, st, sc,
1809 size - (avio_tell(pb) - start_pos));
1811 ret = mov_parse_stsd_data(c, pb, st, sc,
1812 size - (avio_tell(pb) - start_pos));
1816 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1817 a.size = size - (avio_tell(pb) - start_pos);
1819 if ((ret = mov_read_default(c, pb, a)) < 0)
1821 } else if (a.size > 0)
1822 avio_skip(pb, a.size);
1825 if (pb->eof_reached)
1828 return mov_finalize_stsd_codec(c, pb, st, sc);
1831 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1835 avio_r8(pb); /* version */
1836 avio_rb24(pb); /* flags */
1837 entries = avio_rb32(pb);
1839 return ff_mov_read_stsd_entries(c, pb, entries);
1842 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1845 MOVStreamContext *sc;
1846 unsigned int i, entries;
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 entries = avio_rb32(pb);
1858 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1862 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1863 return AVERROR_INVALIDDATA;
1864 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1866 return AVERROR(ENOMEM);
1868 for (i = 0; i < entries && !pb->eof_reached; i++) {
1869 sc->stsc_data[i].first = avio_rb32(pb);
1870 sc->stsc_data[i].count = avio_rb32(pb);
1871 sc->stsc_data[i].id = avio_rb32(pb);
1876 if (pb->eof_reached)
1882 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1885 MOVStreamContext *sc;
1886 unsigned i, entries;
1888 if (c->fc->nb_streams < 1)
1890 st = c->fc->streams[c->fc->nb_streams-1];
1893 avio_rb32(pb); // version + flags
1895 entries = avio_rb32(pb);
1896 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1897 return AVERROR_INVALIDDATA;
1898 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1900 return AVERROR(ENOMEM);
1902 for (i = 0; i < entries && !pb->eof_reached; i++) {
1903 sc->stps_data[i] = avio_rb32(pb);
1904 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1909 if (pb->eof_reached)
1915 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1918 MOVStreamContext *sc;
1919 unsigned int i, entries;
1921 if (c->fc->nb_streams < 1)
1923 st = c->fc->streams[c->fc->nb_streams-1];
1926 avio_r8(pb); /* version */
1927 avio_rb24(pb); /* flags */
1929 entries = avio_rb32(pb);
1931 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1935 sc->keyframe_absent = 1;
1936 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1937 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1940 if (entries >= UINT_MAX / sizeof(int))
1941 return AVERROR_INVALIDDATA;
1942 sc->keyframes = av_malloc(entries * sizeof(int));
1944 return AVERROR(ENOMEM);
1946 for (i = 0; i < entries && !pb->eof_reached; i++) {
1947 sc->keyframes[i] = avio_rb32(pb);
1948 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1951 sc->keyframe_count = i;
1953 if (pb->eof_reached)
1959 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1962 MOVStreamContext *sc;
1963 unsigned int i, entries, sample_size, field_size, num_bytes;
1967 if (c->fc->nb_streams < 1)
1969 st = c->fc->streams[c->fc->nb_streams-1];
1972 avio_r8(pb); /* version */
1973 avio_rb24(pb); /* flags */
1975 if (atom.type == MKTAG('s','t','s','z')) {
1976 sample_size = avio_rb32(pb);
1977 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1978 sc->sample_size = sample_size;
1979 sc->stsz_sample_size = sample_size;
1983 avio_rb24(pb); /* reserved */
1984 field_size = avio_r8(pb);
1986 entries = avio_rb32(pb);
1988 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
1990 sc->sample_count = entries;
1994 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1995 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1996 return AVERROR_INVALIDDATA;
2001 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
2002 return AVERROR_INVALIDDATA;
2003 sc->sample_sizes = av_malloc(entries * sizeof(int));
2004 if (!sc->sample_sizes)
2005 return AVERROR(ENOMEM);
2007 num_bytes = (entries*field_size+4)>>3;
2009 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2011 av_freep(&sc->sample_sizes);
2012 return AVERROR(ENOMEM);
2015 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2016 av_freep(&sc->sample_sizes);
2018 return AVERROR_INVALIDDATA;
2021 init_get_bits(&gb, buf, 8*num_bytes);
2023 for (i = 0; i < entries && !pb->eof_reached; i++) {
2024 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2025 sc->data_size += sc->sample_sizes[i];
2028 sc->sample_count = i;
2030 if (pb->eof_reached)
2037 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2040 MOVStreamContext *sc;
2041 unsigned int i, entries;
2043 int64_t total_sample_count=0;
2045 if (c->fc->nb_streams < 1)
2047 st = c->fc->streams[c->fc->nb_streams-1];
2050 avio_r8(pb); /* version */
2051 avio_rb24(pb); /* flags */
2052 entries = avio_rb32(pb);
2054 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2055 c->fc->nb_streams-1, entries);
2057 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
2060 av_free(sc->stts_data);
2061 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
2063 return AVERROR(ENOMEM);
2065 for (i = 0; i < entries && !pb->eof_reached; i++) {
2066 int sample_duration;
2069 sample_count=avio_rb32(pb);
2070 sample_duration = avio_rb32(pb);
2072 /* sample_duration < 0 is invalid based on the spec */
2073 if (sample_duration < 0) {
2074 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2075 sample_duration, i, c->fc->nb_streams-1);
2076 sample_duration = 1;
2078 if (sample_count < 0) {
2079 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2080 return AVERROR_INVALIDDATA;
2082 sc->stts_data[i].count= sample_count;
2083 sc->stts_data[i].duration= sample_duration;
2085 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2086 sample_count, sample_duration);
2090 && sample_count == 1
2091 && total_sample_count > 100
2092 && sample_duration/10 > duration / total_sample_count)
2093 sample_duration = duration / total_sample_count;
2094 duration+=(int64_t)sample_duration*sample_count;
2095 total_sample_count+=sample_count;
2100 sc->duration_for_fps += duration;
2101 sc->nb_frames_for_fps += total_sample_count;
2103 if (pb->eof_reached)
2106 st->nb_frames= total_sample_count;
2108 st->duration= duration;
2109 sc->track_end = duration;
2113 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2116 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2120 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2123 MOVStreamContext *sc;
2124 unsigned int i, entries;
2126 if (c->fc->nb_streams < 1)
2128 st = c->fc->streams[c->fc->nb_streams-1];
2131 avio_r8(pb); /* version */
2132 avio_rb24(pb); /* flags */
2133 entries = avio_rb32(pb);
2135 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2139 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2140 return AVERROR_INVALIDDATA;
2141 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2143 return AVERROR(ENOMEM);
2145 for (i = 0; i < entries && !pb->eof_reached; i++) {
2146 int count =avio_rb32(pb);
2147 int duration =avio_rb32(pb);
2149 sc->ctts_data[i].count = count;
2150 sc->ctts_data[i].duration= duration;
2152 av_dlog(c->fc, "count=%d, duration=%d\n",
2155 if (FFABS(duration) > (1<<28) && i+2<entries) {
2156 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2157 av_freep(&sc->ctts_data);
2163 mov_update_dts_shift(sc, duration);
2168 if (pb->eof_reached)
2171 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2176 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2179 MOVStreamContext *sc;
2180 unsigned int i, entries;
2182 uint32_t grouping_type;
2184 if (c->fc->nb_streams < 1)
2186 st = c->fc->streams[c->fc->nb_streams-1];
2189 version = avio_r8(pb); /* version */
2190 avio_rb24(pb); /* flags */
2191 grouping_type = avio_rl32(pb);
2192 if (grouping_type != MKTAG( 'r','a','p',' '))
2193 return 0; /* only support 'rap ' grouping */
2195 avio_rb32(pb); /* grouping_type_parameter */
2197 entries = avio_rb32(pb);
2200 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2201 return AVERROR_INVALIDDATA;
2202 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2204 return AVERROR(ENOMEM);
2206 for (i = 0; i < entries && !pb->eof_reached; i++) {
2207 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2208 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2211 sc->rap_group_count = i;
2213 return pb->eof_reached ? AVERROR_EOF : 0;
2216 static void mov_build_index(MOVContext *mov, AVStream *st)
2218 MOVStreamContext *sc = st->priv_data;
2219 int64_t current_offset;
2220 int64_t current_dts = 0;
2221 unsigned int stts_index = 0;
2222 unsigned int stsc_index = 0;
2223 unsigned int stss_index = 0;
2224 unsigned int stps_index = 0;
2226 uint64_t stream_size = 0;
2228 /* adjust first dts according to edit list */
2229 if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
2230 if (sc->empty_duration)
2231 sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
2232 sc->time_offset = sc->start_time - sc->empty_duration;
2233 current_dts = -sc->time_offset;
2234 if (sc->ctts_count>0 && sc->stts_count>0 &&
2235 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2236 /* more than 16 frames delay, dts are likely wrong
2237 this happens with files created by iMovie */
2239 st->codec->has_b_frames = 1;
2243 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2244 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2245 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2246 unsigned int current_sample = 0;
2247 unsigned int stts_sample = 0;
2248 unsigned int sample_size;
2249 unsigned int distance = 0;
2250 unsigned int rap_group_index = 0;
2251 unsigned int rap_group_sample = 0;
2252 int rap_group_present = sc->rap_group_count && sc->rap_group;
2253 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2255 current_dts -= sc->dts_shift;
2257 if (!sc->sample_count || st->nb_index_entries)
2259 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2261 if (av_reallocp_array(&st->index_entries,
2262 st->nb_index_entries + sc->sample_count,
2263 sizeof(*st->index_entries)) < 0) {
2264 st->nb_index_entries = 0;
2267 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2269 for (i = 0; i < sc->chunk_count; i++) {
2270 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2271 current_offset = sc->chunk_offsets[i];
2272 while (stsc_index + 1 < sc->stsc_count &&
2273 i + 1 == sc->stsc_data[stsc_index + 1].first)
2276 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2277 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2278 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2279 sc->stsz_sample_size = sc->sample_size;
2281 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2282 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2283 sc->stsz_sample_size = sc->sample_size;
2286 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2288 if (current_sample >= sc->sample_count) {
2289 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2293 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2295 if (stss_index + 1 < sc->keyframe_count)
2297 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2299 if (stps_index + 1 < sc->stps_count)
2302 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2303 if (sc->rap_group[rap_group_index].index > 0)
2305 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2306 rap_group_sample = 0;
2310 if (sc->keyframe_absent
2312 && !rap_group_present
2313 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2317 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2318 if (sc->pseudo_stream_id == -1 ||
2319 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2320 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2321 e->pos = current_offset;
2322 e->timestamp = current_dts;
2323 e->size = sample_size;
2324 e->min_distance = distance;
2325 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2326 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2327 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2328 current_offset, current_dts, sample_size, distance, keyframe);
2329 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2330 ff_rfps_add_frame(mov->fc, st, current_dts);
2333 current_offset += sample_size;
2334 stream_size += sample_size;
2335 current_dts += sc->stts_data[stts_index].duration;
2339 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2345 if (st->duration > 0)
2346 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2348 unsigned chunk_samples, total = 0;
2350 // compute total chunk count
2351 for (i = 0; i < sc->stsc_count; i++) {
2352 unsigned count, chunk_count;
2354 chunk_samples = sc->stsc_data[i].count;
2355 if (i != sc->stsc_count - 1 &&
2356 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2357 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2361 if (sc->samples_per_frame >= 160) { // gsm
2362 count = chunk_samples / sc->samples_per_frame;
2363 } else if (sc->samples_per_frame > 1) {
2364 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2365 count = (chunk_samples+samples-1) / samples;
2367 count = (chunk_samples+1023) / 1024;
2370 if (i < sc->stsc_count - 1)
2371 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2373 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2374 total += chunk_count * count;
2377 av_dlog(mov->fc, "chunk count %d\n", total);
2378 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2380 if (av_reallocp_array(&st->index_entries,
2381 st->nb_index_entries + total,
2382 sizeof(*st->index_entries)) < 0) {
2383 st->nb_index_entries = 0;
2386 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2389 for (i = 0; i < sc->chunk_count; i++) {
2390 current_offset = sc->chunk_offsets[i];
2391 if (stsc_index + 1 < sc->stsc_count &&
2392 i + 1 == sc->stsc_data[stsc_index + 1].first)
2394 chunk_samples = sc->stsc_data[stsc_index].count;
2396 while (chunk_samples > 0) {
2398 unsigned size, samples;
2400 if (sc->samples_per_frame >= 160) { // gsm
2401 samples = sc->samples_per_frame;
2402 size = sc->bytes_per_frame;
2404 if (sc->samples_per_frame > 1) {
2405 samples = FFMIN((1024 / sc->samples_per_frame)*
2406 sc->samples_per_frame, chunk_samples);
2407 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2409 samples = FFMIN(1024, chunk_samples);
2410 size = samples * sc->sample_size;
2414 if (st->nb_index_entries >= total) {
2415 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2418 e = &st->index_entries[st->nb_index_entries++];
2419 e->pos = current_offset;
2420 e->timestamp = current_dts;
2422 e->min_distance = 0;
2423 e->flags = AVINDEX_KEYFRAME;
2424 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2425 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2428 current_offset += size;
2429 current_dts += samples;
2430 chunk_samples -= samples;
2436 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2437 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2439 /* try relative path, we do not try the absolute because it can leak information about our
2440 system to an attacker */
2441 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2442 char filename[1024];
2443 const char *src_path;
2446 /* find a source dir */
2447 src_path = strrchr(src, '/');
2453 /* find a next level down to target */
2454 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2455 if (ref->path[l] == '/') {
2456 if (i == ref->nlvl_to - 1)
2462 /* compose filename if next level down to target was found */
2463 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2464 memcpy(filename, src, src_path - src);
2465 filename[src_path - src] = 0;
2467 for (i = 1; i < ref->nlvl_from; i++)
2468 av_strlcat(filename, "../", 1024);
2470 av_strlcat(filename, ref->path + l + 1, 1024);
2472 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2475 } else if (use_absolute_path) {
2476 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2477 "this is a possible security issue\n");
2478 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2482 return AVERROR(ENOENT);
2485 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2487 if (sc->time_scale <= 0) {
2488 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2489 sc->time_scale = c->time_scale;
2490 if (sc->time_scale <= 0)
2495 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2498 MOVStreamContext *sc;
2501 st = avformat_new_stream(c->fc, NULL);
2502 if (!st) return AVERROR(ENOMEM);
2503 st->id = c->fc->nb_streams;
2504 sc = av_mallocz(sizeof(MOVStreamContext));
2505 if (!sc) return AVERROR(ENOMEM);
2508 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2509 sc->ffindex = st->index;
2511 if ((ret = mov_read_default(c, pb, atom)) < 0)
2515 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2516 (!sc->sample_size && !sc->sample_count))) {
2517 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2522 fix_timescale(c, sc);
2524 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2526 mov_build_index(c, st);
2528 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2529 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2530 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2531 c->use_absolute_path, c->fc) < 0)
2532 av_log(c->fc, AV_LOG_ERROR,
2533 "stream %d, error opening alias: path='%s', dir='%s', "
2534 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2535 st->index, dref->path, dref->dir, dref->filename,
2536 dref->volume, dref->nlvl_from, dref->nlvl_to);
2539 sc->pb_is_copied = 1;
2542 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2543 if (!st->sample_aspect_ratio.num &&
2544 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2545 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2546 ((double)st->codec->width * sc->height), INT_MAX);
2549 #if FF_API_R_FRAME_RATE
2550 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2551 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2552 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2556 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2557 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2558 TAG_IS_AVCI(st->codec->codec_tag)) {
2559 ret = ff_generate_avci_extradata(st);
2564 switch (st->codec->codec_id) {
2565 #if CONFIG_H261_DECODER
2566 case AV_CODEC_ID_H261:
2568 #if CONFIG_H263_DECODER
2569 case AV_CODEC_ID_H263:
2571 #if CONFIG_MPEG4_DECODER
2572 case AV_CODEC_ID_MPEG4:
2574 st->codec->width = 0; /* let decoder init width/height */
2575 st->codec->height= 0;
2579 /* Do not need those anymore. */
2580 av_freep(&sc->chunk_offsets);
2581 av_freep(&sc->stsc_data);
2582 av_freep(&sc->sample_sizes);
2583 av_freep(&sc->keyframes);
2584 av_freep(&sc->stts_data);
2585 av_freep(&sc->stps_data);
2586 av_freep(&sc->rap_group);
2591 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2594 c->itunes_metadata = 1;
2595 ret = mov_read_default(c, pb, atom);
2596 c->itunes_metadata = 0;
2600 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2602 int64_t end = avio_tell(pb) + size;
2603 uint8_t *key = NULL, *val = NULL;
2606 MOVStreamContext *sc;
2608 if (c->fc->nb_streams < 1)
2610 st = c->fc->streams[c->fc->nb_streams-1];
2613 for (i = 0; i < 2; i++) {
2617 if (end - avio_tell(pb) <= 12)
2620 len = avio_rb32(pb);
2621 tag = avio_rl32(pb);
2622 avio_skip(pb, 4); // flags
2624 if (len < 12 || len - 12 > end - avio_tell(pb))
2628 if (tag == MKTAG('n', 'a', 'm', 'e'))
2630 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2637 *p = av_malloc(len + 1);
2640 avio_read(pb, *p, len);
2645 if (strcmp(key, "iTunSMPB") == 0) {
2646 int priming, remainder, samples;
2647 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2648 if(priming>0 && priming<16384)
2649 sc->start_pad = priming;
2652 if (strcmp(key, "cdec") != 0) {
2653 av_dict_set(&c->fc->metadata, key, val,
2654 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2659 avio_seek(pb, end, SEEK_SET);
2665 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2667 int64_t end = avio_tell(pb) + atom.size;
2673 len = avio_rb32(pb);
2674 tag = avio_rl32(pb);
2676 if (len > atom.size)
2679 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2680 uint8_t domain[128];
2683 avio_skip(pb, 4); // flags
2686 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2687 avio_skip(pb, len - domain_len);
2688 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2692 av_log(c->fc, AV_LOG_VERBOSE,
2693 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2697 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2699 while (atom.size > 8) {
2700 uint32_t tag = avio_rl32(pb);
2702 if (tag == MKTAG('h','d','l','r')) {
2703 avio_seek(pb, -8, SEEK_CUR);
2705 return mov_read_default(c, pb, atom);
2711 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2716 int64_t disp_transform[2];
2717 int display_matrix[3][3];
2719 MOVStreamContext *sc;
2723 if (c->fc->nb_streams < 1)
2725 st = c->fc->streams[c->fc->nb_streams-1];
2728 version = avio_r8(pb);
2729 flags = avio_rb24(pb);
2730 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2736 avio_rb32(pb); /* creation time */
2737 avio_rb32(pb); /* modification time */
2739 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2740 avio_rb32(pb); /* reserved */
2742 /* highlevel (considering edits) duration in movie timebase */
2743 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2744 avio_rb32(pb); /* reserved */
2745 avio_rb32(pb); /* reserved */
2747 avio_rb16(pb); /* layer */
2748 avio_rb16(pb); /* alternate group */
2749 avio_rb16(pb); /* volume */
2750 avio_rb16(pb); /* reserved */
2752 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2753 // they're kept in fixed point format through all calculations
2754 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2755 // side data, but the scale factor is not needed to calculate aspect ratio
2756 for (i = 0; i < 3; i++) {
2757 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2758 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2759 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2762 width = avio_rb32(pb); // 16.16 fixed point track width
2763 height = avio_rb32(pb); // 16.16 fixed point track height
2764 sc->width = width >> 16;
2765 sc->height = height >> 16;
2767 // save the matrix and add rotate metadata when it is not the default
2769 if (display_matrix[0][0] != (1 << 16) ||
2770 display_matrix[1][1] != (1 << 16) ||
2771 display_matrix[2][2] != (1 << 30) ||
2772 display_matrix[0][1] || display_matrix[0][2] ||
2773 display_matrix[1][0] || display_matrix[1][2] ||
2774 display_matrix[2][0] || display_matrix[2][1]) {
2778 av_freep(&sc->display_matrix);
2779 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2780 if (!sc->display_matrix)
2781 return AVERROR(ENOMEM);
2783 for (i = 0; i < 3; i++)
2784 for (j = 0; j < 3; j++)
2785 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2787 rotate = av_display_rotation_get(sc->display_matrix);
2788 if (!isnan(rotate)) {
2789 char rotate_buf[64];
2791 if (rotate < 0) // for backward compatibility
2793 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2794 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2798 // transform the display width/height according to the matrix
2799 // skip this if the display matrix is the default identity matrix
2800 // or if it is rotating the picture, ex iPhone 3GS
2801 // to keep the same scale, use [width height 1<<16]
2802 if (width && height &&
2803 ((display_matrix[0][0] != 65536 ||
2804 display_matrix[1][1] != 65536) &&
2805 !display_matrix[0][1] &&
2806 !display_matrix[1][0] &&
2807 !display_matrix[2][0] && !display_matrix[2][1])) {
2808 for (i = 0; i < 2; i++)
2810 (int64_t) width * display_matrix[0][i] +
2811 (int64_t) height * display_matrix[1][i] +
2812 ((int64_t) display_matrix[2][i] << 16);
2814 //sample aspect ratio is new width/height divided by old width/height
2815 st->sample_aspect_ratio = av_d2q(
2816 ((double) disp_transform[0] * height) /
2817 ((double) disp_transform[1] * width), INT_MAX);
2822 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2824 MOVFragment *frag = &c->fragment;
2825 MOVTrackExt *trex = NULL;
2826 MOVFragmentIndex* index = NULL;
2827 int flags, track_id, i;
2829 avio_r8(pb); /* version */
2830 flags = avio_rb24(pb);
2832 track_id = avio_rb32(pb);
2834 return AVERROR_INVALIDDATA;
2835 frag->track_id = track_id;
2836 for (i = 0; i < c->trex_count; i++)
2837 if (c->trex_data[i].track_id == frag->track_id) {
2838 trex = &c->trex_data[i];
2842 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2843 return AVERROR_INVALIDDATA;
2845 for (i = 0; i < c->fragment_index_count; i++) {
2846 MOVFragmentIndex* candidate = c->fragment_index_data[i];
2847 if (candidate->track_id == frag->track_id) {
2848 av_log(c->fc, AV_LOG_DEBUG,
2849 "found fragment index for track %u\n", frag->track_id);
2855 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2856 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2857 frag->moof_offset : frag->implicit_offset;
2858 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2860 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2861 avio_rb32(pb) : trex->duration;
2862 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2863 avio_rb32(pb) : trex->size;
2864 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2865 avio_rb32(pb) : trex->flags;
2866 frag->time = AV_NOPTS_VALUE;
2869 for (i = index->current_item; i < index->item_count; i++) {
2870 if (frag->implicit_offset == index->items[i].moof_offset) {
2871 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
2872 "for track %u and moof_offset %"PRId64"\n",
2873 frag->track_id, index->items[i].moof_offset);
2874 frag->time = index->items[i].time;
2875 index->current_item = i + 1;
2880 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
2881 "but it doesn't have an (in-order) entry for moof_offset "
2882 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
2885 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2889 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2891 c->chapter_track = avio_rb32(pb);
2895 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2900 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2901 return AVERROR_INVALIDDATA;
2902 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2903 sizeof(*c->trex_data))) < 0) {
2908 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2910 trex = &c->trex_data[c->trex_count++];
2911 avio_r8(pb); /* version */
2912 avio_rb24(pb); /* flags */
2913 trex->track_id = avio_rb32(pb);
2914 trex->stsd_id = avio_rb32(pb);
2915 trex->duration = avio_rb32(pb);
2916 trex->size = avio_rb32(pb);
2917 trex->flags = avio_rb32(pb);
2921 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2923 MOVFragment *frag = &c->fragment;
2924 AVStream *st = NULL;
2925 MOVStreamContext *sc;
2928 for (i = 0; i < c->fc->nb_streams; i++) {
2929 if (c->fc->streams[i]->id == frag->track_id) {
2930 st = c->fc->streams[i];
2935 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2936 return AVERROR_INVALIDDATA;
2939 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2941 version = avio_r8(pb);
2942 avio_rb24(pb); /* flags */
2944 sc->track_end = avio_rb64(pb);
2946 sc->track_end = avio_rb32(pb);
2951 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2953 MOVFragment *frag = &c->fragment;
2954 AVStream *st = NULL;
2955 MOVStreamContext *sc;
2959 int data_offset = 0;
2960 unsigned entries, first_sample_flags = frag->flags;
2961 int flags, distance, i, found_keyframe = 0, err;
2963 for (i = 0; i < c->fc->nb_streams; i++) {
2964 if (c->fc->streams[i]->id == frag->track_id) {
2965 st = c->fc->streams[i];
2970 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2971 return AVERROR_INVALIDDATA;
2974 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
2976 avio_r8(pb); /* version */
2977 flags = avio_rb24(pb);
2978 entries = avio_rb32(pb);
2979 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
2981 /* Always assume the presence of composition time offsets.
2982 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2983 * 1) in the initial movie, there are no samples.
2984 * 2) in the first movie fragment, there is only one sample without composition time offset.
2985 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2986 if (!sc->ctts_count && sc->sample_count)
2988 /* Complement ctts table if moov atom doesn't have ctts atom. */
2989 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
2991 return AVERROR(ENOMEM);
2992 sc->ctts_data = ctts_data;
2993 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
2994 sc->ctts_data[sc->ctts_count].duration = 0;
2997 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
2998 return AVERROR_INVALIDDATA;
2999 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3000 sizeof(*sc->ctts_data))) < 0) {
3004 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3005 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3006 dts = sc->track_end - sc->time_offset;
3007 offset = frag->base_data_offset + data_offset;
3009 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3010 for (i = 0; i < entries && !pb->eof_reached; i++) {
3011 unsigned sample_size = frag->size;
3012 int sample_flags = i ? frag->flags : first_sample_flags;
3013 unsigned sample_duration = frag->duration;
3016 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3017 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3018 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3019 sc->ctts_data[sc->ctts_count].count = 1;
3020 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3022 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3023 if (frag->time != AV_NOPTS_VALUE) {
3024 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3025 int64_t pts = frag->time;
3026 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3027 " sc->dts_shift %d ctts.duration %d"
3028 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3029 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3030 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3031 dts = pts - sc->dts_shift;
3032 if (flags & MOV_TRUN_SAMPLE_CTS) {
3033 dts -= sc->ctts_data[sc->ctts_count].duration;
3035 dts -= sc->time_offset;
3037 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3040 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3041 ", using it for dts\n", dts);
3043 frag->time = AV_NOPTS_VALUE;
3046 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3048 else if (!found_keyframe)
3049 keyframe = found_keyframe =
3050 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3051 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3054 av_add_index_entry(st, offset, dts, sample_size, distance,
3055 keyframe ? AVINDEX_KEYFRAME : 0);
3056 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3057 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3058 offset, dts, sample_size, distance, keyframe);
3060 dts += sample_duration;
3061 offset += sample_size;
3062 sc->data_size += sample_size;
3063 sc->duration_for_fps += sample_duration;
3064 sc->nb_frames_for_fps ++;
3067 if (pb->eof_reached)
3070 frag->implicit_offset = offset;
3071 st->duration = sc->track_end = dts + sc->time_offset;
3075 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3076 /* like the files created with Adobe Premiere 5.0, for samples see */
3077 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3078 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3083 return 0; /* continue */
3084 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3085 avio_skip(pb, atom.size - 4);
3088 atom.type = avio_rl32(pb);
3090 if (atom.type != MKTAG('m','d','a','t')) {
3091 avio_skip(pb, atom.size);
3094 err = mov_read_mdat(c, pb, atom);
3098 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3103 uint8_t *moov_data; /* uncompressed data */
3104 long cmov_len, moov_len;
3107 avio_rb32(pb); /* dcom atom */
3108 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3109 return AVERROR_INVALIDDATA;
3110 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3111 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3112 return AVERROR_INVALIDDATA;
3114 avio_rb32(pb); /* cmvd atom */
3115 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3116 return AVERROR_INVALIDDATA;
3117 moov_len = avio_rb32(pb); /* uncompressed size */
3118 cmov_len = atom.size - 6 * 4;
3120 cmov_data = av_malloc(cmov_len);
3122 return AVERROR(ENOMEM);
3123 moov_data = av_malloc(moov_len);
3126 return AVERROR(ENOMEM);
3128 avio_read(pb, cmov_data, cmov_len);
3129 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3130 goto free_and_return;
3131 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3132 goto free_and_return;
3133 atom.type = MKTAG('m','o','o','v');
3134 atom.size = moov_len;
3135 ret = mov_read_default(c, &ctx, atom);
3141 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3142 return AVERROR(ENOSYS);
3146 /* edit list atom */
3147 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3149 MOVStreamContext *sc;
3150 int i, edit_count, version, edit_start_index = 0;
3151 int unsupported = 0;
3153 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3155 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3157 version = avio_r8(pb); /* version */
3158 avio_rb24(pb); /* flags */
3159 edit_count = avio_rb32(pb); /* entries */
3161 if ((uint64_t)edit_count*12+8 > atom.size)
3162 return AVERROR_INVALIDDATA;
3164 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3165 for (i=0; i<edit_count; i++){
3170 duration = avio_rb64(pb);
3171 time = avio_rb64(pb);
3173 duration = avio_rb32(pb); /* segment duration */
3174 time = (int32_t)avio_rb32(pb); /* media time */
3176 rate = avio_rb32(pb);
3177 if (i == 0 && time == -1) {
3178 sc->empty_duration = duration;
3179 edit_start_index = 1;
3180 } else if (i == edit_start_index && time >= 0)
3181 sc->start_time = time;
3185 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3186 duration, time, rate / 65536.0);
3190 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3191 "a/v desync might occur, patch welcome\n");
3196 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3198 MOVStreamContext *sc;
3200 if (c->fc->nb_streams < 1)
3201 return AVERROR_INVALIDDATA;
3202 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3203 sc->timecode_track = avio_rb32(pb);
3207 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3211 static const uint8_t uuid_isml_manifest[] = {
3212 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3213 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3216 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3217 return AVERROR_INVALIDDATA;
3219 ret = avio_read(pb, uuid, sizeof(uuid));
3222 } else if (ret != sizeof(uuid)) {
3223 return AVERROR_INVALIDDATA;
3225 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3226 uint8_t *buffer, *ptr;
3228 size_t len = atom.size - sizeof(uuid);
3231 return AVERROR_INVALIDDATA;
3233 ret = avio_skip(pb, 4); // zeroes
3236 buffer = av_mallocz(len + 1);
3238 return AVERROR(ENOMEM);
3240 ret = avio_read(pb, buffer, len);
3244 } else if (ret != len) {
3246 return AVERROR_INVALIDDATA;
3250 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3251 ptr += sizeof("systemBitrate=\"") - 1;
3252 c->bitrates_count++;
3253 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3255 c->bitrates_count = 0;
3257 return AVERROR(ENOMEM);
3260 ret = strtol(ptr, &endptr, 10);
3261 if (ret < 0 || errno || *endptr != '"') {
3262 c->bitrates[c->bitrates_count - 1] = 0;
3264 c->bitrates[c->bitrates_count - 1] = ret;
3273 static const MOVParseTableEntry mov_default_parse_table[] = {
3274 { MKTAG('A','C','L','R'), mov_read_avid },
3275 { MKTAG('A','P','R','G'), mov_read_avid },
3276 { MKTAG('A','A','L','P'), mov_read_avid },
3277 { MKTAG('A','R','E','S'), mov_read_ares },
3278 { MKTAG('a','v','s','s'), mov_read_avss },
3279 { MKTAG('c','h','p','l'), mov_read_chpl },
3280 { MKTAG('c','o','6','4'), mov_read_stco },
3281 { MKTAG('c','o','l','r'), mov_read_colr },
3282 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3283 { MKTAG('d','i','n','f'), mov_read_default },
3284 { MKTAG('d','r','e','f'), mov_read_dref },
3285 { MKTAG('e','d','t','s'), mov_read_default },
3286 { MKTAG('e','l','s','t'), mov_read_elst },
3287 { MKTAG('e','n','d','a'), mov_read_enda },
3288 { MKTAG('f','i','e','l'), mov_read_fiel },
3289 { MKTAG('f','t','y','p'), mov_read_ftyp },
3290 { MKTAG('g','l','b','l'), mov_read_glbl },
3291 { MKTAG('h','d','l','r'), mov_read_hdlr },
3292 { MKTAG('i','l','s','t'), mov_read_ilst },
3293 { MKTAG('j','p','2','h'), mov_read_jp2h },
3294 { MKTAG('m','d','a','t'), mov_read_mdat },
3295 { MKTAG('m','d','h','d'), mov_read_mdhd },
3296 { MKTAG('m','d','i','a'), mov_read_default },
3297 { MKTAG('m','e','t','a'), mov_read_meta },
3298 { MKTAG('m','i','n','f'), mov_read_default },
3299 { MKTAG('m','o','o','f'), mov_read_moof },
3300 { MKTAG('m','o','o','v'), mov_read_moov },
3301 { MKTAG('m','v','e','x'), mov_read_default },
3302 { MKTAG('m','v','h','d'), mov_read_mvhd },
3303 { MKTAG('S','M','I',' '), mov_read_svq3 },
3304 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3305 { MKTAG('a','v','c','C'), mov_read_glbl },
3306 { MKTAG('p','a','s','p'), mov_read_pasp },
3307 { MKTAG('s','t','b','l'), mov_read_default },
3308 { MKTAG('s','t','c','o'), mov_read_stco },
3309 { MKTAG('s','t','p','s'), mov_read_stps },
3310 { MKTAG('s','t','r','f'), mov_read_strf },
3311 { MKTAG('s','t','s','c'), mov_read_stsc },
3312 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3313 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3314 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3315 { MKTAG('s','t','t','s'), mov_read_stts },
3316 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3317 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3318 { MKTAG('t','f','d','t'), mov_read_tfdt },
3319 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3320 { MKTAG('t','r','a','k'), mov_read_trak },
3321 { MKTAG('t','r','a','f'), mov_read_default },
3322 { MKTAG('t','r','e','f'), mov_read_default },
3323 { MKTAG('t','m','c','d'), mov_read_tmcd },
3324 { MKTAG('c','h','a','p'), mov_read_chap },
3325 { MKTAG('t','r','e','x'), mov_read_trex },
3326 { MKTAG('t','r','u','n'), mov_read_trun },
3327 { MKTAG('u','d','t','a'), mov_read_default },
3328 { MKTAG('w','a','v','e'), mov_read_wave },
3329 { MKTAG('e','s','d','s'), mov_read_esds },
3330 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3331 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3332 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3333 { MKTAG('w','f','e','x'), mov_read_wfex },
3334 { MKTAG('c','m','o','v'), mov_read_cmov },
3335 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3336 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3337 { MKTAG('s','b','g','p'), mov_read_sbgp },
3338 { MKTAG('h','v','c','C'), mov_read_glbl },
3339 { MKTAG('u','u','i','d'), mov_read_uuid },
3340 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3341 { MKTAG('-','-','-','-'), mov_read_custom },
3345 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3347 int64_t total_size = 0;
3352 atom.size = INT64_MAX;
3353 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3354 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3357 if (atom.size >= 8) {
3358 a.size = avio_rb32(pb);
3359 a.type = avio_rl32(pb);
3360 if (a.type == MKTAG('f','r','e','e') &&
3364 uint32_t *type = (uint32_t *)buf + 1;
3365 avio_read(pb, buf, 8);
3366 avio_seek(pb, -8, SEEK_CUR);
3367 if (*type == MKTAG('m','v','h','d') ||
3368 *type == MKTAG('c','m','o','v')) {
3369 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3370 a.type = MKTAG('m','o','o','v');
3373 if (atom.type != MKTAG('r','o','o','t') &&
3374 atom.type != MKTAG('m','o','o','v'))
3376 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3378 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3384 if (a.size == 1) { /* 64 bit extended size */
3385 a.size = avio_rb64(pb) - 8;
3389 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3390 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3392 a.size = atom.size - total_size + 8;
3397 a.size = FFMIN(a.size, atom.size - total_size);
3399 for (i = 0; mov_default_parse_table[i].type; i++)
3400 if (mov_default_parse_table[i].type == a.type) {
3401 parse = mov_default_parse_table[i].parse;
3405 // container is user data
3406 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3407 atom.type == MKTAG('i','l','s','t')))
3408 parse = mov_read_udta_string;
3410 if (!parse) { /* skip leaf atoms data */
3411 avio_skip(pb, a.size);
3413 int64_t start_pos = avio_tell(pb);
3415 int err = parse(c, pb, a);
3418 if (c->found_moov && c->found_mdat &&
3419 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3420 start_pos + a.size == avio_size(pb))) {
3421 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3422 c->next_root_atom = start_pos + a.size;
3425 left = a.size - avio_tell(pb) + start_pos;
3426 if (left > 0) /* skip garbage at atom end */
3427 avio_skip(pb, left);
3428 else if (left < 0) {
3429 av_log(c->fc, AV_LOG_WARNING,
3430 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3431 (char*)&a.type, -left);
3432 avio_seek(pb, left, SEEK_CUR);
3436 total_size += a.size;
3439 if (total_size < atom.size && atom.size < 0x7ffff)
3440 avio_skip(pb, atom.size - total_size);
3445 static int mov_probe(AVProbeData *p)
3450 int moov_offset = -1;
3452 /* check file header */
3455 /* ignore invalid offset */
3456 if ((offset + 8) > (unsigned int)p->buf_size)
3458 tag = AV_RL32(p->buf + offset + 4);
3460 /* check for obvious tags */
3461 case MKTAG('m','o','o','v'):
3462 moov_offset = offset + 4;
3463 case MKTAG('m','d','a','t'):
3464 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3465 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3466 case MKTAG('f','t','y','p'):
3467 if (AV_RB32(p->buf+offset) < 8 &&
3468 (AV_RB32(p->buf+offset) != 1 ||
3469 offset + 12 > (unsigned int)p->buf_size ||
3470 AV_RB64(p->buf+offset + 8) == 0)) {
3471 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3472 } else if (tag == MKTAG('f','t','y','p') &&
3473 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3474 score = FFMAX(score, 5);
3476 score = AVPROBE_SCORE_MAX;
3478 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3480 /* those are more common words, so rate then a bit less */
3481 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3482 case MKTAG('w','i','d','e'):
3483 case MKTAG('f','r','e','e'):
3484 case MKTAG('j','u','n','k'):
3485 case MKTAG('p','i','c','t'):
3486 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3487 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3489 case MKTAG(0x82,0x82,0x7f,0x7d):
3490 case MKTAG('s','k','i','p'):
3491 case MKTAG('u','u','i','d'):
3492 case MKTAG('p','r','f','l'):
3493 /* if we only find those cause probedata is too small at least rate them */
3494 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3495 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3498 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3501 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3502 /* moov atom in the header - we should make sure that this is not a
3503 * MOV-packed MPEG-PS */
3504 offset = moov_offset;
3506 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3507 /* We found an actual hdlr atom */
3508 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3509 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3510 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3511 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3512 /* We found a media handler reference atom describing an
3513 * MPEG-PS-in-MOV, return a
3514 * low score to force expanding the probe window until
3515 * mpegps_probe finds what it needs */
3526 // must be done after parsing all trak because there's no order requirement
3527 static void mov_read_chapters(AVFormatContext *s)
3529 MOVContext *mov = s->priv_data;
3530 AVStream *st = NULL;
3531 MOVStreamContext *sc;
3535 for (i = 0; i < s->nb_streams; i++)
3536 if (s->streams[i]->id == mov->chapter_track) {
3541 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3545 st->discard = AVDISCARD_ALL;
3547 cur_pos = avio_tell(sc->pb);
3549 for (i = 0; i < st->nb_index_entries; i++) {
3550 AVIndexEntry *sample = &st->index_entries[i];
3551 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3556 if (end < sample->timestamp) {
3557 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3558 end = AV_NOPTS_VALUE;
3561 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3562 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3566 // the first two bytes are the length of the title
3567 len = avio_rb16(sc->pb);
3568 if (len > sample->size-2)
3570 title_len = 2*len + 1;
3571 if (!(title = av_mallocz(title_len)))
3574 // The samples could theoretically be in any encoding if there's an encd
3575 // atom following, but in practice are only utf-8 or utf-16, distinguished
3576 // instead by the presence of a BOM
3580 ch = avio_rb16(sc->pb);
3582 avio_get_str16be(sc->pb, len, title, title_len);
3583 else if (ch == 0xfffe)
3584 avio_get_str16le(sc->pb, len, title, title_len);
3587 if (len == 1 || len == 2)
3590 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3594 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3598 avio_seek(sc->pb, cur_pos, SEEK_SET);
3601 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3602 uint32_t value, int flags)
3605 char buf[AV_TIMECODE_STR_SIZE];
3606 AVRational rate = {st->codec->time_base.den,
3607 st->codec->time_base.num};
3608 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3611 av_dict_set(&st->metadata, "timecode",
3612 av_timecode_make_string(&tc, buf, value), 0);
3616 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3618 MOVStreamContext *sc = st->priv_data;
3620 int64_t cur_pos = avio_tell(sc->pb);
3623 if (!st->nb_index_entries)
3626 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3627 value = avio_rb32(s->pb);
3629 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3630 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3631 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3633 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3634 * not the case) and thus assume "frame number format" instead of QT one.
3635 * No sample with tmcd track can be found with a QT timecode at the moment,
3636 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3638 parse_timecode_in_framenum_format(s, st, value, flags);
3640 avio_seek(sc->pb, cur_pos, SEEK_SET);
3644 static int mov_read_close(AVFormatContext *s)
3646 MOVContext *mov = s->priv_data;
3649 for (i = 0; i < s->nb_streams; i++) {
3650 AVStream *st = s->streams[i];
3651 MOVStreamContext *sc = st->priv_data;
3653 av_freep(&sc->ctts_data);
3654 for (j = 0; j < sc->drefs_count; j++) {
3655 av_freep(&sc->drefs[j].path);
3656 av_freep(&sc->drefs[j].dir);
3658 av_freep(&sc->drefs);
3660 sc->drefs_count = 0;
3662 if (!sc->pb_is_copied)
3666 av_freep(&sc->chunk_offsets);
3667 av_freep(&sc->stsc_data);
3668 av_freep(&sc->sample_sizes);
3669 av_freep(&sc->keyframes);
3670 av_freep(&sc->stts_data);
3671 av_freep(&sc->stps_data);
3672 av_freep(&sc->rap_group);
3673 av_freep(&sc->display_matrix);
3676 if (mov->dv_demux) {
3677 avformat_free_context(mov->dv_fctx);
3678 mov->dv_fctx = NULL;
3681 av_freep(&mov->trex_data);
3682 av_freep(&mov->bitrates);
3684 for (i = 0; i < mov->fragment_index_count; i++) {
3685 MOVFragmentIndex* index = mov->fragment_index_data[i];
3686 av_freep(&index->items);
3687 av_freep(&mov->fragment_index_data[i]);
3689 av_freep(&mov->fragment_index_data);
3694 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3698 for (i = 0; i < s->nb_streams; i++) {
3699 AVStream *st = s->streams[i];
3700 MOVStreamContext *sc = st->priv_data;
3702 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3703 sc->timecode_track == tmcd_id)
3709 /* look for a tmcd track not referenced by any video track, and export it globally */
3710 static void export_orphan_timecode(AVFormatContext *s)
3714 for (i = 0; i < s->nb_streams; i++) {
3715 AVStream *st = s->streams[i];
3717 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3718 !tmcd_is_referenced(s, i + 1)) {
3719 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3721 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3728 static int read_tfra(MOVContext *mov, AVIOContext *f)
3730 MOVFragmentIndex* index = NULL;
3731 int version, fieldlength, i, j, err;
3732 int64_t pos = avio_tell(f);
3733 uint32_t size = avio_rb32(f);
3734 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3737 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3738 index = av_mallocz(sizeof(MOVFragmentIndex));
3740 return AVERROR(ENOMEM);
3742 mov->fragment_index_count++;
3743 if ((err = av_reallocp(&mov->fragment_index_data,
3744 mov->fragment_index_count *
3745 sizeof(MOVFragmentIndex*))) < 0) {
3749 mov->fragment_index_data[mov->fragment_index_count - 1] =
3752 version = avio_r8(f);
3754 index->track_id = avio_rb32(f);
3755 fieldlength = avio_rb32(f);
3756 index->item_count = avio_rb32(f);
3757 index->items = av_mallocz(
3758 index->item_count * sizeof(MOVFragmentIndexItem));
3759 if (!index->items) {
3760 return AVERROR(ENOMEM);
3762 for (i = 0; i < index->item_count; i++) {
3763 int64_t time, offset;
3765 time = avio_rb64(f);
3766 offset = avio_rb64(f);
3768 time = avio_rb32(f);
3769 offset = avio_rb32(f);
3771 index->items[i].time = time;
3772 index->items[i].moof_offset = offset;
3773 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3775 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3777 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3781 avio_seek(f, pos + size, SEEK_SET);
3785 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3787 int64_t stream_size = avio_size(f);
3788 int64_t original_pos = avio_tell(f);
3791 if ((ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) goto fail;
3792 mfra_size = avio_rb32(f);
3793 if (mfra_size < 0 || mfra_size > stream_size) {
3794 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
3798 if ((ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) goto fail;
3799 if (avio_rb32(f) != mfra_size) {
3800 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
3804 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
3805 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
3808 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
3809 while (!read_tfra(c, f)) {
3813 ret = avio_seek(f, original_pos, SEEK_SET);
3815 av_log(c->fc, AV_LOG_ERROR,
3816 "failed to seek back after looking for mfra\n");
3822 static int mov_read_header(AVFormatContext *s)
3824 MOVContext *mov = s->priv_data;
3825 AVIOContext *pb = s->pb;
3827 MOVAtom atom = { AV_RL32("root") };
3831 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3833 atom.size = avio_size(pb);
3835 atom.size = INT64_MAX;
3837 /* check MOV header */
3839 if (mov->moov_retry)
3840 avio_seek(pb, 0, SEEK_SET);
3841 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3842 av_log(s, AV_LOG_ERROR, "error reading header\n");
3846 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3847 if (!mov->found_moov) {
3848 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3850 return AVERROR_INVALIDDATA;
3852 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3855 if (mov->chapter_track > 0)
3856 mov_read_chapters(s);
3857 for (i = 0; i < s->nb_streams; i++)
3858 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3859 mov_read_timecode_track(s, s->streams[i]);
3862 /* copy timecode metadata from tmcd tracks to the related video streams */
3863 for (i = 0; i < s->nb_streams; i++) {
3864 AVStream *st = s->streams[i];
3865 MOVStreamContext *sc = st->priv_data;
3866 if (sc->timecode_track > 0) {
3867 AVDictionaryEntry *tcr;
3868 int tmcd_st_id = -1;
3870 for (j = 0; j < s->nb_streams; j++)
3871 if (s->streams[j]->id == sc->timecode_track)
3874 if (tmcd_st_id < 0 || tmcd_st_id == i)
3876 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
3878 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
3881 export_orphan_timecode(s);
3883 for (i = 0; i < s->nb_streams; i++) {
3884 AVStream *st = s->streams[i];
3885 MOVStreamContext *sc = st->priv_data;
3886 fix_timescale(mov, sc);
3887 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
3888 st->skip_samples = sc->start_pad;
3890 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
3891 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3892 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
3893 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3894 if (st->codec->width <= 0 && st->codec->height <= 0) {
3895 st->codec->width = sc->width;
3896 st->codec->height = sc->height;
3898 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3899 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3905 if (mov->trex_data) {
3906 for (i = 0; i < s->nb_streams; i++) {
3907 AVStream *st = s->streams[i];
3908 MOVStreamContext *sc = st->priv_data;
3909 if (st->duration > 0)
3910 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3914 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
3915 if (mov->bitrates[i]) {
3916 s->streams[i]->codec->bit_rate = mov->bitrates[i];
3920 ff_rfps_calculate(s);
3922 for (i = 0; i < s->nb_streams; i++) {
3923 AVStream *st = s->streams[i];
3924 MOVStreamContext *sc = st->priv_data;
3926 switch (st->codec->codec_type) {
3927 case AVMEDIA_TYPE_AUDIO:
3928 err = ff_replaygain_export(st, s->metadata);
3934 case AVMEDIA_TYPE_VIDEO:
3935 if (sc->display_matrix) {
3936 AVPacketSideData *sd, *tmp;
3938 tmp = av_realloc_array(st->side_data,
3939 st->nb_side_data + 1, sizeof(*tmp));
3941 return AVERROR(ENOMEM);
3943 st->side_data = tmp;
3946 sd = &st->side_data[st->nb_side_data - 1];
3947 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
3948 sd->size = sizeof(int32_t) * 9;
3949 sd->data = (uint8_t*)sc->display_matrix;
3950 sc->display_matrix = NULL;
3959 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
3961 AVIndexEntry *sample = NULL;
3962 int64_t best_dts = INT64_MAX;
3964 for (i = 0; i < s->nb_streams; i++) {
3965 AVStream *avst = s->streams[i];
3966 MOVStreamContext *msc = avst->priv_data;
3967 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
3968 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
3969 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
3970 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
3971 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
3973 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
3974 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
3975 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
3976 sample = current_sample;
3985 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
3987 MOVContext *mov = s->priv_data;
3988 MOVStreamContext *sc;
3989 AVIndexEntry *sample;
3990 AVStream *st = NULL;
3994 sample = mov_find_next_sample(s, &st);
3996 mov->found_mdat = 0;
3997 if (!mov->next_root_atom)
3999 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4000 mov->next_root_atom = 0;
4001 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4004 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4008 /* must be done just before reading, to avoid infinite loop on sample */
4009 sc->current_sample++;
4011 if (mov->next_root_atom) {
4012 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4013 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4016 if (st->discard != AVDISCARD_ALL) {
4017 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4018 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4019 sc->ffindex, sample->pos);
4020 return AVERROR_INVALIDDATA;
4022 ret = av_get_packet(sc->pb, pkt, sample->size);
4025 if (sc->has_palette) {
4028 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4030 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4032 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4033 sc->has_palette = 0;
4036 #if CONFIG_DV_DEMUXER
4037 if (mov->dv_demux && sc->dv_audio_container) {
4038 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4041 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4048 pkt->stream_index = sc->ffindex;
4049 pkt->dts = sample->timestamp;
4050 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4051 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4052 /* update ctts context */
4054 if (sc->ctts_index < sc->ctts_count &&
4055 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4057 sc->ctts_sample = 0;
4060 pkt->dts = AV_NOPTS_VALUE;
4062 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4063 st->index_entries[sc->current_sample].timestamp : st->duration;
4064 pkt->duration = next_dts - pkt->dts;
4065 pkt->pts = pkt->dts;
4067 if (st->discard == AVDISCARD_ALL)
4069 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4070 pkt->pos = sample->pos;
4071 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4072 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4076 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4078 MOVStreamContext *sc = st->priv_data;
4079 int sample, time_sample;
4082 sample = av_index_search_timestamp(st, timestamp, flags);
4083 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4084 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4086 if (sample < 0) /* not sure what to do */
4087 return AVERROR_INVALIDDATA;
4088 sc->current_sample = sample;
4089 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4090 /* adjust ctts index */
4091 if (sc->ctts_data) {
4093 for (i = 0; i < sc->ctts_count; i++) {
4094 int next = time_sample + sc->ctts_data[i].count;
4095 if (next > sc->current_sample) {
4097 sc->ctts_sample = sc->current_sample - time_sample;
4106 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4109 int64_t seek_timestamp, timestamp;
4113 if (stream_index >= s->nb_streams)
4114 return AVERROR_INVALIDDATA;
4116 st = s->streams[stream_index];
4117 sample = mov_seek_stream(s, st, sample_time, flags);
4121 /* adjust seek timestamp to found sample timestamp */
4122 seek_timestamp = st->index_entries[sample].timestamp;
4124 for (i = 0; i < s->nb_streams; i++) {
4125 MOVStreamContext *sc = s->streams[i]->priv_data;
4127 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4129 if (stream_index == i)
4132 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4133 mov_seek_stream(s, st, timestamp, flags);
4138 static const AVOption options[] = {
4139 {"use_absolute_path",
4140 "allow using absolute path when opening alias, this is a possible security issue",
4141 offsetof(MOVContext, use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4142 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4143 {"ignore_editlist", "", offsetof(MOVContext, ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4144 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4146 "use mfra for fragment timestamps",
4147 offsetof(MOVContext, use_mfra_for), FF_OPT_TYPE_INT, {.i64 = 0},
4148 0, FF_MOV_FLAG_MFRA_PTS, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM,
4150 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4151 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4152 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4153 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4157 static const AVClass mov_class = {
4158 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4159 .item_name = av_default_item_name,
4161 .version = LIBAVUTIL_VERSION_INT,
4164 AVInputFormat ff_mov_demuxer = {
4165 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4166 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4167 .priv_data_size = sizeof(MOVContext),
4168 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4169 .read_probe = mov_probe,
4170 .read_header = mov_read_header,
4171 .read_packet = mov_read_packet,
4172 .read_close = mov_read_close,
4173 .read_seek = mov_read_seek,
4174 .priv_class = &mov_class,
4175 .flags = AVFMT_NO_BYTE_SEEK,