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);
72 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
73 unsigned len, const char *key)
77 short current, total = 0;
78 avio_rb16(pb); // unknown
79 current = avio_rb16(pb);
81 total = avio_rb16(pb);
83 snprintf(buf, sizeof(buf), "%d", current);
85 snprintf(buf, sizeof(buf), "%d/%d", current, total);
86 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
87 av_dict_set(&c->fc->metadata, key, buf, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
93 unsigned len, const char *key)
95 /* bypass padding bytes */
100 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
101 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
106 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
107 unsigned len, const char *key)
109 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
110 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
115 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
116 unsigned len, const char *key)
120 avio_r8(pb); // unknown
123 if (genre < 1 || genre > ID3v1_GENRE_MAX)
125 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
126 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
131 static const uint32_t mac_to_unicode[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
151 char *dst, int dstlen)
154 char *end = dst+dstlen-1;
157 for (i = 0; i < len; i++) {
158 uint8_t t, c = avio_r8(pb);
159 if (c < 0x80 && p < end)
162 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
168 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
172 MOVStreamContext *sc;
177 case 0xd: id = AV_CODEC_ID_MJPEG; break;
178 case 0xe: id = AV_CODEC_ID_PNG; break;
179 case 0x1b: id = AV_CODEC_ID_BMP; break;
181 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
186 st = avformat_new_stream(c->fc, NULL);
188 return AVERROR(ENOMEM);
189 sc = av_mallocz(sizeof(*sc));
191 return AVERROR(ENOMEM);
194 ret = av_get_packet(pb, &pkt, len);
198 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
200 st->attached_pic = pkt;
201 st->attached_pic.stream_index = st->index;
202 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
204 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
205 st->codec->codec_id = id;
210 static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
211 unsigned len, const char *key)
213 char *value = av_malloc(len + 1);
215 return AVERROR(ENOMEM);
216 avio_read(pb, value, len);
218 return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
221 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
223 char language[4] = { 0 };
225 uint16_t langcode = 0;
226 double longitude, latitude;
227 const char *key = "location";
229 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
230 return AVERROR_INVALIDDATA;
232 avio_skip(pb, 4); // version+flags
233 langcode = avio_rb16(pb);
234 ff_mov_lang_to_iso639(langcode, language);
237 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
239 return AVERROR_INVALIDDATA;
240 avio_skip(pb, 1); // role
244 return AVERROR_INVALIDDATA;
245 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
246 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
248 // Try to output in the same format as the ?xyz field
249 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
250 if (*language && strcmp(language, "und")) {
252 snprintf(key2, sizeof(key2), "%s-%s", key, language);
253 av_dict_set(&c->fc->metadata, key2, buf, 0);
255 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
256 return av_dict_set(&c->fc->metadata, key, buf, 0);
259 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
261 #ifdef MOV_EXPORT_ALL_METADATA
264 char str[1024], key2[16], language[4] = {0};
265 const char *key = NULL;
266 uint16_t langcode = 0;
267 uint32_t data_type = 0, str_size;
268 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
271 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
272 case MKTAG(0xa9,'a','u','t'):
273 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
274 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
275 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
276 case MKTAG( 'c','p','i','l'): key = "compilation";
277 parse = mov_metadata_int8_no_padding; break;
278 case MKTAG( 'c','p','r','t'):
279 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
280 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
281 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
282 case MKTAG(0xa9,'c','m','t'):
283 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
284 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
285 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
286 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
287 case MKTAG( 'g','n','r','e'): key = "genre";
288 parse = mov_metadata_gnre; break;
289 case MKTAG(0xa9,'t','o','o'):
290 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
291 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
292 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
293 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
294 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
295 case MKTAG( 'd','e','s','c'): key = "description";break;
296 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
297 case MKTAG( 't','v','s','h'): key = "show"; break;
298 case MKTAG( 't','v','e','n'): key = "episode_id";break;
299 case MKTAG( 't','v','n','n'): key = "network"; break;
300 case MKTAG( 't','r','k','n'): key = "track";
301 parse = mov_metadata_track_or_disc_number; break;
302 case MKTAG( 'd','i','s','k'): key = "disc";
303 parse = mov_metadata_track_or_disc_number; break;
304 case MKTAG( 't','v','e','s'): key = "episode_sort";
305 parse = mov_metadata_int8_bypass_padding; break;
306 case MKTAG( 't','v','s','n'): key = "season_number";
307 parse = mov_metadata_int8_bypass_padding; break;
308 case MKTAG( 's','t','i','k'): key = "media_type";
309 parse = mov_metadata_int8_no_padding; break;
310 case MKTAG( 'h','d','v','d'): key = "hd_video";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
313 parse = mov_metadata_int8_no_padding; break;
314 case MKTAG( '@','P','R','M'):
315 return mov_metadata_raw(c, pb, atom.size, "premiere_version");
316 case MKTAG( '@','P','R','Q'):
317 return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
318 case MKTAG( 'l','o','c','i'):
319 return mov_metadata_loci(c, pb, atom.size);
320 case MKTAG( 'X','M','P','_'):
321 return mov_metadata_raw(c, pb, atom.size, "xmp");
324 if (c->itunes_metadata && atom.size > 8) {
325 int data_size = avio_rb32(pb);
326 int tag = avio_rl32(pb);
327 if (tag == MKTAG('d','a','t','a')) {
328 data_type = avio_rb32(pb); // type
329 avio_rb32(pb); // unknown
330 str_size = data_size - 16;
333 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
334 int ret = mov_read_covr(c, pb, data_type, str_size);
336 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
341 } else if (atom.size > 4 && key && !c->itunes_metadata) {
342 str_size = avio_rb16(pb); // string length
343 langcode = avio_rb16(pb);
344 ff_mov_lang_to_iso639(langcode, language);
347 str_size = atom.size;
349 #ifdef MOV_EXPORT_ALL_METADATA
351 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
359 return AVERROR_INVALIDDATA;
361 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
364 parse(c, pb, str_size, key);
366 if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
367 mov_read_mac_string(c, pb, str_size, str, sizeof(str));
369 int ret = avio_read(pb, str, str_size);
371 return ret < 0 ? ret : AVERROR_INVALIDDATA;
374 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
375 av_dict_set(&c->fc->metadata, key, str, 0);
376 if (*language && strcmp(language, "und")) {
377 snprintf(key2, sizeof(key2), "%s-%s", key, language);
378 av_dict_set(&c->fc->metadata, key2, str, 0);
381 av_dlog(c->fc, "lang \"%3s\" ", language);
382 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
383 key, str, (char*)&atom.type, str_size, atom.size);
388 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
391 int i, nb_chapters, str_len, version;
394 if ((atom.size -= 5) < 0)
397 version = avio_r8(pb);
400 avio_rb32(pb); // ???
401 nb_chapters = avio_r8(pb);
403 for (i = 0; i < nb_chapters; i++) {
407 start = avio_rb64(pb);
408 str_len = avio_r8(pb);
410 if ((atom.size -= 9+str_len) < 0)
413 avio_read(pb, str, str_len);
415 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
420 #define MIN_DATA_ENTRY_BOX_SIZE 12
421 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
424 MOVStreamContext *sc;
427 if (c->fc->nb_streams < 1)
429 st = c->fc->streams[c->fc->nb_streams-1];
432 avio_rb32(pb); // version + flags
433 entries = avio_rb32(pb);
434 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
435 entries >= UINT_MAX / sizeof(*sc->drefs))
436 return AVERROR_INVALIDDATA;
439 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
441 return AVERROR(ENOMEM);
442 sc->drefs_count = entries;
444 for (i = 0; i < sc->drefs_count; i++) {
445 MOVDref *dref = &sc->drefs[i];
446 uint32_t size = avio_rb32(pb);
447 int64_t next = avio_tell(pb) + size - 4;
450 return AVERROR_INVALIDDATA;
452 dref->type = avio_rl32(pb);
453 avio_rb32(pb); // version + flags
454 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
456 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
457 /* macintosh alias record */
458 uint16_t volume_len, len;
463 volume_len = avio_r8(pb);
464 volume_len = FFMIN(volume_len, 27);
465 avio_read(pb, dref->volume, 27);
466 dref->volume[volume_len] = 0;
467 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
472 len = FFMIN(len, 63);
473 avio_read(pb, dref->filename, 63);
474 dref->filename[len] = 0;
475 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
479 /* read next level up_from_alias/down_to_target */
480 dref->nlvl_from = avio_rb16(pb);
481 dref->nlvl_to = avio_rb16(pb);
482 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
483 dref->nlvl_from, dref->nlvl_to);
487 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
490 type = avio_rb16(pb);
492 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
495 if (type == 2) { // absolute path
497 dref->path = av_mallocz(len+1);
499 return AVERROR(ENOMEM);
500 avio_read(pb, dref->path, len);
501 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
503 memmove(dref->path, dref->path+volume_len, len);
506 for (j = 0; j < len; j++)
507 if (dref->path[j] == ':')
509 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
510 } else if (type == 0) { // directory name
512 dref->dir = av_malloc(len+1);
514 return AVERROR(ENOMEM);
515 if (avio_read(pb, dref->dir, len) != len)
516 return AVERROR_INVALIDDATA;
518 for (j = 0; j < len; j++)
519 if (dref->dir[j] == ':')
521 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
526 avio_seek(pb, next, SEEK_SET);
531 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
535 uint32_t av_unused ctype;
539 if (c->fc->nb_streams < 1) // meta before first trak
542 st = c->fc->streams[c->fc->nb_streams-1];
544 avio_r8(pb); /* version */
545 avio_rb24(pb); /* flags */
548 ctype = avio_rl32(pb);
549 type = avio_rl32(pb); /* component subtype */
551 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
552 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
554 if (type == MKTAG('v','i','d','e'))
555 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
556 else if (type == MKTAG('s','o','u','n'))
557 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
558 else if (type == MKTAG('m','1','a',' '))
559 st->codec->codec_id = AV_CODEC_ID_MP2;
560 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
561 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
563 avio_rb32(pb); /* component manufacture */
564 avio_rb32(pb); /* component flags */
565 avio_rb32(pb); /* component flags mask */
567 title_size = atom.size - 24;
568 if (title_size > 0) {
569 title_str = av_malloc(title_size + 1); /* Add null terminator */
571 return AVERROR(ENOMEM);
572 avio_read(pb, title_str, title_size);
573 title_str[title_size] = 0;
575 av_dict_set(&st->metadata, "handler_name", title_str +
576 (!c->isom && title_str[0] == title_size - 1), 0);
577 av_freep(&title_str);
583 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
588 if (fc->nb_streams < 1)
590 st = fc->streams[fc->nb_streams-1];
592 avio_rb32(pb); /* version + flags */
593 ff_mp4_read_descr(fc, pb, &tag);
594 if (tag == MP4ESDescrTag) {
595 ff_mp4_parse_es_descr(pb, NULL);
597 avio_rb16(pb); /* ID */
599 ff_mp4_read_descr(fc, pb, &tag);
600 if (tag == MP4DecConfigDescrTag)
601 ff_mp4_read_dec_config_descr(fc, st, pb);
605 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
607 return ff_mov_read_esds(c->fc, pb);
610 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
613 int ac3info, acmod, lfeon, bsmod;
615 if (c->fc->nb_streams < 1)
617 st = c->fc->streams[c->fc->nb_streams-1];
619 ac3info = avio_rb24(pb);
620 bsmod = (ac3info >> 14) & 0x7;
621 acmod = (ac3info >> 11) & 0x7;
622 lfeon = (ac3info >> 10) & 0x1;
623 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
624 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
626 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
627 st->codec->audio_service_type = bsmod;
628 if (st->codec->channels > 1 && bsmod == 0x7)
629 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
634 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
637 int eac3info, acmod, lfeon, bsmod;
639 if (c->fc->nb_streams < 1)
641 st = c->fc->streams[c->fc->nb_streams-1];
643 /* No need to parse fields for additional independent substreams and its
644 * associated dependent substreams since libavcodec's E-AC-3 decoder
645 * does not support them yet. */
646 avio_rb16(pb); /* data_rate and num_ind_sub */
647 eac3info = avio_rb24(pb);
648 bsmod = (eac3info >> 12) & 0x1f;
649 acmod = (eac3info >> 9) & 0x7;
650 lfeon = (eac3info >> 8) & 0x1;
651 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
653 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
654 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
655 st->codec->audio_service_type = bsmod;
656 if (st->codec->channels > 1 && bsmod == 0x7)
657 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
662 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
666 if (c->fc->nb_streams < 1)
668 st = c->fc->streams[c->fc->nb_streams-1];
673 /* skip version and flags */
676 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
681 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
685 if (c->fc->nb_streams < 1)
687 st = c->fc->streams[c->fc->nb_streams-1];
689 if (ff_get_wav_header(pb, st->codec, atom.size) < 0) {
690 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
696 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
698 const int num = avio_rb32(pb);
699 const int den = avio_rb32(pb);
702 if (c->fc->nb_streams < 1)
704 st = c->fc->streams[c->fc->nb_streams-1];
706 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
707 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
708 av_log(c->fc, AV_LOG_WARNING,
709 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
710 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
712 } else if (den != 0) {
713 st->sample_aspect_ratio.num = num;
714 st->sample_aspect_ratio.den = den;
719 /* this atom contains actual media data */
720 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
722 if (atom.size == 0) /* wrong one (MP4) */
725 return 0; /* now go for moov */
728 /* read major brand, minor version and compatible brands and store them as metadata */
729 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
733 char* comp_brands_str;
734 uint8_t type[5] = {0};
736 avio_read(pb, type, 4);
737 if (strcmp(type, "qt "))
739 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
740 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
741 minor_ver = avio_rb32(pb); /* minor version */
742 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
744 comp_brand_size = atom.size - 8;
745 if (comp_brand_size < 0)
746 return AVERROR_INVALIDDATA;
747 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
748 if (!comp_brands_str)
749 return AVERROR(ENOMEM);
750 avio_read(pb, comp_brands_str, comp_brand_size);
751 comp_brands_str[comp_brand_size] = 0;
752 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
753 av_freep(&comp_brands_str);
758 /* this atom should contain all header atoms */
759 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
764 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
765 avio_skip(pb, atom.size);
769 if ((ret = mov_read_default(c, pb, atom)) < 0)
771 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
772 /* so we don't parse the whole file if over a network */
774 return 0; /* now go for mdat */
777 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
779 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
780 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
781 return mov_read_default(c, pb, atom);
784 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
790 if(time >= 2082844800)
791 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
793 ptm = gmtime(&timet);
795 strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
796 av_dict_set(metadata, "creation_time", buffer, 0);
800 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
803 MOVStreamContext *sc;
805 char language[4] = {0};
807 int64_t creation_time;
809 if (c->fc->nb_streams < 1)
811 st = c->fc->streams[c->fc->nb_streams-1];
814 if (sc->time_scale) {
815 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
816 return AVERROR_INVALIDDATA;
819 version = avio_r8(pb);
821 avpriv_request_sample(c->fc, "Version %d", version);
822 return AVERROR_PATCHWELCOME;
824 avio_rb24(pb); /* flags */
826 creation_time = avio_rb64(pb);
829 creation_time = avio_rb32(pb);
830 avio_rb32(pb); /* modification time */
832 mov_metadata_creation_time(&st->metadata, creation_time);
834 sc->time_scale = avio_rb32(pb);
835 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
837 lang = avio_rb16(pb); /* language */
838 if (ff_mov_lang_to_iso639(lang, language))
839 av_dict_set(&st->metadata, "language", language, 0);
840 avio_rb16(pb); /* quality */
845 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
847 int64_t creation_time;
848 int version = avio_r8(pb); /* version */
849 avio_rb24(pb); /* flags */
852 creation_time = avio_rb64(pb);
855 creation_time = avio_rb32(pb);
856 avio_rb32(pb); /* modification time */
858 mov_metadata_creation_time(&c->fc->metadata, creation_time);
859 c->time_scale = avio_rb32(pb); /* time scale */
861 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
863 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
864 // set the AVCodecContext duration because the duration of individual tracks
866 if (c->time_scale > 0 && !c->trex_data)
867 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
868 avio_rb32(pb); /* preferred scale */
870 avio_rb16(pb); /* preferred volume */
872 avio_skip(pb, 10); /* reserved */
874 avio_skip(pb, 36); /* display matrix */
876 avio_rb32(pb); /* preview time */
877 avio_rb32(pb); /* preview duration */
878 avio_rb32(pb); /* poster time */
879 avio_rb32(pb); /* selection time */
880 avio_rb32(pb); /* selection duration */
881 avio_rb32(pb); /* current time */
882 avio_rb32(pb); /* next track ID */
886 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
891 if (c->fc->nb_streams < 1)
893 st = c->fc->streams[c->fc->nb_streams-1];
895 little_endian = avio_rb16(pb) & 0xFF;
896 av_dlog(c->fc, "enda %d\n", little_endian);
897 if (little_endian == 1) {
898 switch (st->codec->codec_id) {
899 case AV_CODEC_ID_PCM_S24BE:
900 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
902 case AV_CODEC_ID_PCM_S32BE:
903 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
905 case AV_CODEC_ID_PCM_F32BE:
906 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
908 case AV_CODEC_ID_PCM_F64BE:
909 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
918 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
921 char color_parameter_type[5] = { 0 };
922 int color_primaries, color_trc, color_matrix;
924 if (c->fc->nb_streams < 1)
926 st = c->fc->streams[c->fc->nb_streams - 1];
928 avio_read(pb, color_parameter_type, 4);
929 if (strncmp(color_parameter_type, "nclx", 4) &&
930 strncmp(color_parameter_type, "nclc", 4)) {
931 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
932 color_parameter_type);
936 color_primaries = avio_rb16(pb);
937 color_trc = avio_rb16(pb);
938 color_matrix = avio_rb16(pb);
940 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
941 color_parameter_type, color_primaries, color_trc, color_matrix);
944 uint8_t color_range = avio_r8(pb) >> 7;
945 av_dlog(c->fc, " full %"PRIu8"", color_range);
947 st->codec->color_range = AVCOL_RANGE_JPEG;
949 st->codec->color_range = AVCOL_RANGE_MPEG;
950 /* 14496-12 references JPEG XR specs (rather than the more complete
951 * 23001-8) so some adjusting is required */
952 if (color_primaries >= AVCOL_PRI_FILM)
953 color_primaries = AVCOL_PRI_UNSPECIFIED;
954 if (color_trc >= AVCOL_TRC_LINEAR || color_trc <= AVCOL_TRC_LOG_SQRT ||
955 color_trc >= AVCOL_TRC_BT2020_10)
956 color_trc = AVCOL_TRC_UNSPECIFIED;
957 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
958 color_matrix = AVCOL_SPC_UNSPECIFIED;
959 st->codec->color_primaries = color_primaries;
960 st->codec->color_trc = color_trc;
961 st->codec->colorspace = color_matrix;
963 /* color primaries, Table 4-4 */
964 switch (color_primaries) {
965 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
966 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
967 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
969 /* color transfer, Table 4-5 */
971 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
972 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
974 /* color matrix, Table 4-6 */
975 switch (color_matrix) {
976 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
977 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
978 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
981 av_dlog(c->fc, "\n");
986 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
989 unsigned mov_field_order;
990 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
992 if (c->fc->nb_streams < 1) // will happen with jp2 files
994 st = c->fc->streams[c->fc->nb_streams-1];
996 return AVERROR_INVALIDDATA;
997 mov_field_order = avio_rb16(pb);
998 if ((mov_field_order & 0xFF00) == 0x0100)
999 decoded_field_order = AV_FIELD_PROGRESSIVE;
1000 else if ((mov_field_order & 0xFF00) == 0x0200) {
1001 switch (mov_field_order & 0xFF) {
1002 case 0x01: decoded_field_order = AV_FIELD_TT;
1004 case 0x06: decoded_field_order = AV_FIELD_BB;
1006 case 0x09: decoded_field_order = AV_FIELD_TB;
1008 case 0x0E: decoded_field_order = AV_FIELD_BT;
1012 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1013 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1015 st->codec->field_order = decoded_field_order;
1020 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1021 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1022 enum AVCodecID codec_id)
1029 if (c->fc->nb_streams < 1) // will happen with jp2 files
1031 st= c->fc->streams[c->fc->nb_streams-1];
1033 if (st->codec->codec_id != codec_id)
1034 return 0; /* unexpected codec_id - don't mess with extradata */
1036 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1037 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1038 return AVERROR_INVALIDDATA;
1039 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1040 st->codec->extradata_size = 0;
1043 buf = st->codec->extradata + st->codec->extradata_size;
1044 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1045 AV_WB32( buf , atom.size + 8);
1046 AV_WL32( buf + 4, atom.type);
1047 err = avio_read(pb, buf + 8, atom.size);
1050 } else if (err < atom.size) {
1051 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1052 st->codec->extradata_size -= atom.size - err;
1054 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1058 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1059 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1061 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1064 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1066 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1069 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1071 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1074 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1076 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1078 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1082 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1084 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1086 if (!ret && c->fc->nb_streams >= 1) {
1087 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1088 if (avctx->extradata_size >= 40) {
1089 avctx->height = AV_RB16(&avctx->extradata[36]);
1090 avctx->width = AV_RB16(&avctx->extradata[38]);
1096 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1098 if (c->fc->nb_streams >= 1) {
1099 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1100 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1101 codec->codec_id == AV_CODEC_ID_H264 &&
1104 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1105 if (avio_rb16(pb) == 0xd4d)
1106 codec->width = 1440;
1111 return mov_read_avid(c, pb, atom);
1114 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1116 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1119 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1123 if (c->fc->nb_streams < 1)
1125 st = c->fc->streams[c->fc->nb_streams-1];
1127 if ((uint64_t)atom.size > (1<<30))
1128 return AVERROR_INVALIDDATA;
1130 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1131 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1132 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1133 // pass all frma atom to codec, needed at least for QDMC and QDM2
1134 av_free(st->codec->extradata);
1135 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1136 return AVERROR(ENOMEM);
1137 } else if (atom.size > 8) { /* to read frma, esds atoms */
1139 if ((ret = mov_read_default(c, pb, atom)) < 0)
1142 avio_skip(pb, atom.size);
1147 * This function reads atom content and puts data in extradata without tag
1148 * nor size unlike mov_read_extradata.
1150 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1154 if (c->fc->nb_streams < 1)
1156 st = c->fc->streams[c->fc->nb_streams-1];
1158 if ((uint64_t)atom.size > (1<<30))
1159 return AVERROR_INVALIDDATA;
1161 if (atom.size >= 10) {
1162 // Broken files created by legacy versions of libavformat will
1163 // wrap a whole fiel atom inside of a glbl atom.
1164 unsigned size = avio_rb32(pb);
1165 unsigned type = avio_rl32(pb);
1166 avio_seek(pb, -8, SEEK_CUR);
1167 if (type == MKTAG('f','i','e','l') && size == atom.size)
1168 return mov_read_default(c, pb, atom);
1170 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1171 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1174 av_free(st->codec->extradata);
1175 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1176 return AVERROR(ENOMEM);
1181 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1184 uint8_t profile_level;
1187 if (c->fc->nb_streams < 1)
1189 st = c->fc->streams[c->fc->nb_streams-1];
1191 if (atom.size >= (1<<28) || atom.size < 7)
1192 return AVERROR_INVALIDDATA;
1194 profile_level = avio_r8(pb);
1195 if ((profile_level & 0xf0) != 0xc0)
1198 avio_seek(pb, 6, SEEK_CUR);
1199 av_free(st->codec->extradata);
1200 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1207 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1208 * but can have extradata appended at the end after the 40 bytes belonging
1211 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1215 if (c->fc->nb_streams < 1)
1217 if (atom.size <= 40)
1219 st = c->fc->streams[c->fc->nb_streams-1];
1221 if ((uint64_t)atom.size > (1<<30))
1222 return AVERROR_INVALIDDATA;
1225 av_free(st->codec->extradata);
1226 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1227 return AVERROR(ENOMEM);
1231 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1234 MOVStreamContext *sc;
1235 unsigned int i, entries;
1237 if (c->fc->nb_streams < 1)
1239 st = c->fc->streams[c->fc->nb_streams-1];
1242 avio_r8(pb); /* version */
1243 avio_rb24(pb); /* flags */
1245 entries = avio_rb32(pb);
1249 if (entries >= UINT_MAX/sizeof(int64_t))
1250 return AVERROR_INVALIDDATA;
1252 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1253 if (!sc->chunk_offsets)
1254 return AVERROR(ENOMEM);
1255 sc->chunk_count = entries;
1257 if (atom.type == MKTAG('s','t','c','o'))
1258 for (i = 0; i < entries && !pb->eof_reached; i++)
1259 sc->chunk_offsets[i] = avio_rb32(pb);
1260 else if (atom.type == MKTAG('c','o','6','4'))
1261 for (i = 0; i < entries && !pb->eof_reached; i++)
1262 sc->chunk_offsets[i] = avio_rb64(pb);
1264 return AVERROR_INVALIDDATA;
1266 sc->chunk_count = i;
1268 if (pb->eof_reached)
1275 * Compute codec id for 'lpcm' tag.
1276 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1278 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1285 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1288 static int mov_codec_id(AVStream *st, uint32_t format)
1290 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1293 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1294 (format & 0xFFFF) == 'T' + ('S' << 8)))
1295 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1297 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1298 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1299 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1300 /* skip old asf mpeg4 tag */
1301 format && format != MKTAG('m','p','4','s')) {
1302 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1304 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1306 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1307 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1308 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1309 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1310 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1312 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1316 st->codec->codec_tag = format;
1321 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1322 AVStream *st, MOVStreamContext *sc)
1324 uint8_t codec_name[32];
1325 unsigned int color_depth, len, j;
1326 int color_greyscale;
1329 avio_rb16(pb); /* version */
1330 avio_rb16(pb); /* revision level */
1331 avio_rb32(pb); /* vendor */
1332 avio_rb32(pb); /* temporal quality */
1333 avio_rb32(pb); /* spatial quality */
1335 st->codec->width = avio_rb16(pb); /* width */
1336 st->codec->height = avio_rb16(pb); /* height */
1338 avio_rb32(pb); /* horiz resolution */
1339 avio_rb32(pb); /* vert resolution */
1340 avio_rb32(pb); /* data size, always 0 */
1341 avio_rb16(pb); /* frames per samples */
1343 len = avio_r8(pb); /* codec name, pascal string */
1346 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1348 avio_skip(pb, 31 - len);
1351 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1353 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1354 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1355 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1356 st->codec->width &= ~1;
1357 st->codec->height &= ~1;
1359 /* Flash Media Server uses tag H263 with Sorenson Spark */
1360 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1361 !memcmp(codec_name, "Sorenson H263", 13))
1362 st->codec->codec_id = AV_CODEC_ID_FLV1;
1364 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1365 color_table_id = avio_rb16(pb); /* colortable id */
1366 av_dlog(c->fc, "depth %d, ctab id %d\n",
1367 st->codec->bits_per_coded_sample, color_table_id);
1368 /* figure out the palette situation */
1369 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1370 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1371 /* Do not create a greyscale palette for cinepak */
1372 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1375 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1376 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1377 /* for palette traversal */
1378 unsigned int color_start, color_count, color_end;
1379 unsigned char a, r, g, b;
1381 if (color_greyscale) {
1382 int color_index, color_dec;
1383 /* compute the greyscale palette */
1384 st->codec->bits_per_coded_sample = color_depth;
1385 color_count = 1 << color_depth;
1387 color_dec = 256 / (color_count - 1);
1388 for (j = 0; j < color_count; j++) {
1389 r = g = b = color_index;
1390 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1391 color_index -= color_dec;
1392 if (color_index < 0)
1395 } else if (color_table_id) {
1396 const uint8_t *color_table;
1397 /* if flag bit 3 is set, use the default palette */
1398 color_count = 1 << color_depth;
1399 if (color_depth == 2)
1400 color_table = ff_qt_default_palette_4;
1401 else if (color_depth == 4)
1402 color_table = ff_qt_default_palette_16;
1404 color_table = ff_qt_default_palette_256;
1406 for (j = 0; j < color_count; j++) {
1407 r = color_table[j * 3 + 0];
1408 g = color_table[j * 3 + 1];
1409 b = color_table[j * 3 + 2];
1410 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1413 /* load the palette from the file */
1414 color_start = avio_rb32(pb);
1415 color_count = avio_rb16(pb);
1416 color_end = avio_rb16(pb);
1417 if ((color_start <= 255) && (color_end <= 255)) {
1418 for (j = color_start; j <= color_end; j++) {
1419 /* each A, R, G, or B component is 16 bits;
1420 * only use the top 8 bits */
1429 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1433 sc->has_palette = 1;
1437 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1438 AVStream *st, MOVStreamContext *sc)
1440 int bits_per_sample, flags;
1441 uint16_t version = avio_rb16(pb);
1442 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1444 avio_rb16(pb); /* revision level */
1445 avio_rb32(pb); /* vendor */
1447 st->codec->channels = avio_rb16(pb); /* channel count */
1448 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1449 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1451 sc->audio_cid = avio_rb16(pb);
1452 avio_rb16(pb); /* packet size = 0 */
1454 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1456 // Read QT version 1 fields. In version 0 these do not exist.
1457 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1459 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1462 sc->samples_per_frame = avio_rb32(pb);
1463 avio_rb32(pb); /* bytes per packet */
1464 sc->bytes_per_frame = avio_rb32(pb);
1465 avio_rb32(pb); /* bytes per sample */
1466 } else if (version == 2) {
1467 avio_rb32(pb); /* sizeof struct only */
1468 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1469 st->codec->channels = avio_rb32(pb);
1470 avio_rb32(pb); /* always 0x7F000000 */
1471 st->codec->bits_per_coded_sample = avio_rb32(pb);
1473 flags = avio_rb32(pb); /* lpcm format specific flag */
1474 sc->bytes_per_frame = avio_rb32(pb);
1475 sc->samples_per_frame = avio_rb32(pb);
1476 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1477 st->codec->codec_id =
1478 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1483 switch (st->codec->codec_id) {
1484 case AV_CODEC_ID_PCM_S8:
1485 case AV_CODEC_ID_PCM_U8:
1486 if (st->codec->bits_per_coded_sample == 16)
1487 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1489 case AV_CODEC_ID_PCM_S16LE:
1490 case AV_CODEC_ID_PCM_S16BE:
1491 if (st->codec->bits_per_coded_sample == 8)
1492 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1493 else if (st->codec->bits_per_coded_sample == 24)
1494 st->codec->codec_id =
1495 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1496 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1497 else if (st->codec->bits_per_coded_sample == 32)
1498 st->codec->codec_id =
1499 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1500 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1502 /* set values for old format before stsd version 1 appeared */
1503 case AV_CODEC_ID_MACE3:
1504 sc->samples_per_frame = 6;
1505 sc->bytes_per_frame = 2 * st->codec->channels;
1507 case AV_CODEC_ID_MACE6:
1508 sc->samples_per_frame = 6;
1509 sc->bytes_per_frame = 1 * st->codec->channels;
1511 case AV_CODEC_ID_ADPCM_IMA_QT:
1512 sc->samples_per_frame = 64;
1513 sc->bytes_per_frame = 34 * st->codec->channels;
1515 case AV_CODEC_ID_GSM:
1516 sc->samples_per_frame = 160;
1517 sc->bytes_per_frame = 33;
1523 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1524 if (bits_per_sample) {
1525 st->codec->bits_per_coded_sample = bits_per_sample;
1526 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1530 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1531 AVStream *st, MOVStreamContext *sc,
1534 // ttxt stsd contains display flags, justification, background
1535 // color, fonts, and default styles, so fake an atom to read it
1536 MOVAtom fake_atom = { .size = size };
1537 // mp4s contains a regular esds atom
1538 if (st->codec->codec_tag != AV_RL32("mp4s"))
1539 mov_read_glbl(c, pb, fake_atom);
1540 st->codec->width = sc->width;
1541 st->codec->height = sc->height;
1544 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1549 y = (ycbcr >> 16) & 0xFF;
1550 cr = (ycbcr >> 8) & 0xFF;
1553 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1554 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1555 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1557 return (r << 16) | (g << 8) | b;
1560 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1562 char buf[256] = {0};
1563 uint8_t *src = st->codec->extradata;
1566 if (st->codec->extradata_size != 64)
1569 if (st->codec->width > 0 && st->codec->height > 0)
1570 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1571 st->codec->width, st->codec->height);
1572 av_strlcat(buf, "palette: ", sizeof(buf));
1574 for (i = 0; i < 16; i++) {
1575 uint32_t yuv = AV_RB32(src + i * 4);
1576 uint32_t rgba = yuv_to_rgba(yuv);
1578 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1581 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1584 av_freep(&st->codec->extradata);
1585 st->codec->extradata_size = 0;
1586 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1587 if (!st->codec->extradata)
1588 return AVERROR(ENOMEM);
1589 st->codec->extradata_size = strlen(buf);
1590 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1595 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1596 AVStream *st, MOVStreamContext *sc,
1599 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1600 if (ff_get_extradata(st->codec, pb, size) < 0)
1601 return AVERROR(ENOMEM);
1603 MOVStreamContext *tmcd_ctx = st->priv_data;
1605 val = AV_RB32(st->codec->extradata + 4);
1606 tmcd_ctx->tmcd_flags = val;
1608 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1609 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1610 st->codec->time_base.num = 1;
1612 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1613 uint32_t format = AV_RB32(st->codec->extradata + 22);
1614 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1615 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1616 if (str_size > 0 && size >= (int)str_size + 26) {
1617 char *reel_name = av_malloc(str_size + 1);
1619 return AVERROR(ENOMEM);
1620 memcpy(reel_name, st->codec->extradata + 30, str_size);
1621 reel_name[str_size] = 0; /* Add null terminator */
1622 /* don't add reel_name if emtpy string */
1623 if (*reel_name == 0) {
1626 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1633 /* other codec type, just skip (rtp, mp4s ...) */
1634 avio_skip(pb, size);
1639 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1640 AVStream *st, MOVStreamContext *sc)
1642 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1643 !st->codec->sample_rate && sc->time_scale > 1)
1644 st->codec->sample_rate = sc->time_scale;
1646 /* special codec parameters handling */
1647 switch (st->codec->codec_id) {
1648 #if CONFIG_DV_DEMUXER
1649 case AV_CODEC_ID_DVAUDIO:
1650 c->dv_fctx = avformat_alloc_context();
1651 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1653 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1654 return AVERROR(ENOMEM);
1656 sc->dv_audio_container = 1;
1657 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1660 /* no ifdef since parameters are always those */
1661 case AV_CODEC_ID_QCELP:
1662 st->codec->channels = 1;
1663 // force sample rate for qcelp when not stored in mov
1664 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1665 st->codec->sample_rate = 8000;
1666 // FIXME: Why is the following needed for some files?
1667 sc->samples_per_frame = 160;
1668 if (!sc->bytes_per_frame)
1669 sc->bytes_per_frame = 35;
1671 case AV_CODEC_ID_AMR_NB:
1672 st->codec->channels = 1;
1673 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1674 st->codec->sample_rate = 8000;
1676 case AV_CODEC_ID_AMR_WB:
1677 st->codec->channels = 1;
1678 st->codec->sample_rate = 16000;
1680 case AV_CODEC_ID_MP2:
1681 case AV_CODEC_ID_MP3:
1682 /* force type after stsd for m1a hdlr */
1683 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1684 st->need_parsing = AVSTREAM_PARSE_FULL;
1686 case AV_CODEC_ID_GSM:
1687 case AV_CODEC_ID_ADPCM_MS:
1688 case AV_CODEC_ID_ADPCM_IMA_WAV:
1689 case AV_CODEC_ID_ILBC:
1690 case AV_CODEC_ID_MACE3:
1691 case AV_CODEC_ID_MACE6:
1692 case AV_CODEC_ID_QDM2:
1693 st->codec->block_align = sc->bytes_per_frame;
1695 case AV_CODEC_ID_ALAC:
1696 if (st->codec->extradata_size == 36) {
1697 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1698 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1701 case AV_CODEC_ID_AC3:
1702 case AV_CODEC_ID_EAC3:
1703 case AV_CODEC_ID_MPEG1VIDEO:
1704 case AV_CODEC_ID_VC1:
1705 st->need_parsing = AVSTREAM_PARSE_FULL;
1713 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1714 int codec_tag, int format,
1717 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1720 (codec_tag != format &&
1721 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1722 : codec_tag != MKTAG('j','p','e','g')))) {
1723 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1724 * export it as a separate AVStream but this needs a few changes
1725 * in the MOV demuxer, patch welcome. */
1727 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1728 avio_skip(pb, size);
1731 if ( codec_tag == AV_RL32("avc1") ||
1732 codec_tag == AV_RL32("hvc1") ||
1733 codec_tag == AV_RL32("hev1")
1735 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1740 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1743 MOVStreamContext *sc;
1744 int pseudo_stream_id;
1746 if (c->fc->nb_streams < 1)
1748 st = c->fc->streams[c->fc->nb_streams-1];
1751 for (pseudo_stream_id = 0;
1752 pseudo_stream_id < entries && !pb->eof_reached;
1753 pseudo_stream_id++) {
1754 //Parsing Sample description table
1756 int ret, dref_id = 1;
1757 MOVAtom a = { AV_RL32("stsd") };
1758 int64_t start_pos = avio_tell(pb);
1759 int64_t size = avio_rb32(pb); /* size */
1760 uint32_t format = avio_rl32(pb); /* data format */
1763 avio_rb32(pb); /* reserved */
1764 avio_rb16(pb); /* reserved */
1765 dref_id = avio_rb16(pb);
1766 }else if (size <= 7){
1767 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1768 return AVERROR_INVALIDDATA;
1771 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1772 size - (avio_tell(pb) - start_pos)))
1775 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1776 sc->dref_id= dref_id;
1778 id = mov_codec_id(st, format);
1780 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1781 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1782 (format >> 24) & 0xff, st->codec->codec_type);
1784 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1785 st->codec->codec_id = id;
1786 mov_parse_stsd_video(c, pb, st, sc);
1787 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1788 st->codec->codec_id = id;
1789 mov_parse_stsd_audio(c, pb, st, sc);
1790 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1791 st->codec->codec_id = id;
1792 mov_parse_stsd_subtitle(c, pb, st, sc,
1793 size - (avio_tell(pb) - start_pos));
1795 ret = mov_parse_stsd_data(c, pb, st, sc,
1796 size - (avio_tell(pb) - start_pos));
1800 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1801 a.size = size - (avio_tell(pb) - start_pos);
1803 if ((ret = mov_read_default(c, pb, a)) < 0)
1805 } else if (a.size > 0)
1806 avio_skip(pb, a.size);
1809 if (pb->eof_reached)
1812 return mov_finalize_stsd_codec(c, pb, st, sc);
1815 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1819 avio_r8(pb); /* version */
1820 avio_rb24(pb); /* flags */
1821 entries = avio_rb32(pb);
1823 return ff_mov_read_stsd_entries(c, pb, entries);
1826 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1829 MOVStreamContext *sc;
1830 unsigned int i, entries;
1832 if (c->fc->nb_streams < 1)
1834 st = c->fc->streams[c->fc->nb_streams-1];
1837 avio_r8(pb); /* version */
1838 avio_rb24(pb); /* flags */
1840 entries = avio_rb32(pb);
1842 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1846 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1847 return AVERROR_INVALIDDATA;
1848 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1850 return AVERROR(ENOMEM);
1852 for (i = 0; i < entries && !pb->eof_reached; i++) {
1853 sc->stsc_data[i].first = avio_rb32(pb);
1854 sc->stsc_data[i].count = avio_rb32(pb);
1855 sc->stsc_data[i].id = avio_rb32(pb);
1860 if (pb->eof_reached)
1866 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1869 MOVStreamContext *sc;
1870 unsigned i, entries;
1872 if (c->fc->nb_streams < 1)
1874 st = c->fc->streams[c->fc->nb_streams-1];
1877 avio_rb32(pb); // version + flags
1879 entries = avio_rb32(pb);
1880 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1881 return AVERROR_INVALIDDATA;
1882 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1884 return AVERROR(ENOMEM);
1886 for (i = 0; i < entries && !pb->eof_reached; i++) {
1887 sc->stps_data[i] = avio_rb32(pb);
1888 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1893 if (pb->eof_reached)
1899 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1902 MOVStreamContext *sc;
1903 unsigned int i, entries;
1905 if (c->fc->nb_streams < 1)
1907 st = c->fc->streams[c->fc->nb_streams-1];
1910 avio_r8(pb); /* version */
1911 avio_rb24(pb); /* flags */
1913 entries = avio_rb32(pb);
1915 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1919 sc->keyframe_absent = 1;
1920 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1921 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1924 if (entries >= UINT_MAX / sizeof(int))
1925 return AVERROR_INVALIDDATA;
1926 sc->keyframes = av_malloc(entries * sizeof(int));
1928 return AVERROR(ENOMEM);
1930 for (i = 0; i < entries && !pb->eof_reached; i++) {
1931 sc->keyframes[i] = avio_rb32(pb);
1932 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1935 sc->keyframe_count = i;
1937 if (pb->eof_reached)
1943 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1946 MOVStreamContext *sc;
1947 unsigned int i, entries, sample_size, field_size, num_bytes;
1951 if (c->fc->nb_streams < 1)
1953 st = c->fc->streams[c->fc->nb_streams-1];
1956 avio_r8(pb); /* version */
1957 avio_rb24(pb); /* flags */
1959 if (atom.type == MKTAG('s','t','s','z')) {
1960 sample_size = avio_rb32(pb);
1961 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1962 sc->sample_size = sample_size;
1963 sc->stsz_sample_size = sample_size;
1967 avio_rb24(pb); /* reserved */
1968 field_size = avio_r8(pb);
1970 entries = avio_rb32(pb);
1972 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
1974 sc->sample_count = entries;
1978 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1979 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1980 return AVERROR_INVALIDDATA;
1985 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
1986 return AVERROR_INVALIDDATA;
1987 sc->sample_sizes = av_malloc(entries * sizeof(int));
1988 if (!sc->sample_sizes)
1989 return AVERROR(ENOMEM);
1991 num_bytes = (entries*field_size+4)>>3;
1993 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
1995 av_freep(&sc->sample_sizes);
1996 return AVERROR(ENOMEM);
1999 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2000 av_freep(&sc->sample_sizes);
2002 return AVERROR_INVALIDDATA;
2005 init_get_bits(&gb, buf, 8*num_bytes);
2007 for (i = 0; i < entries && !pb->eof_reached; i++) {
2008 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2009 sc->data_size += sc->sample_sizes[i];
2012 sc->sample_count = i;
2014 if (pb->eof_reached)
2021 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2024 MOVStreamContext *sc;
2025 unsigned int i, entries;
2027 int64_t total_sample_count=0;
2029 if (c->fc->nb_streams < 1)
2031 st = c->fc->streams[c->fc->nb_streams-1];
2034 avio_r8(pb); /* version */
2035 avio_rb24(pb); /* flags */
2036 entries = avio_rb32(pb);
2038 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2039 c->fc->nb_streams-1, entries);
2041 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
2044 av_free(sc->stts_data);
2045 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
2047 return AVERROR(ENOMEM);
2049 for (i = 0; i < entries && !pb->eof_reached; i++) {
2050 int sample_duration;
2053 sample_count=avio_rb32(pb);
2054 sample_duration = avio_rb32(pb);
2056 /* sample_duration < 0 is invalid based on the spec */
2057 if (sample_duration < 0) {
2058 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2059 sample_duration, i, c->fc->nb_streams-1);
2060 sample_duration = 1;
2062 if (sample_count < 0) {
2063 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2064 return AVERROR_INVALIDDATA;
2066 sc->stts_data[i].count= sample_count;
2067 sc->stts_data[i].duration= sample_duration;
2069 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2070 sample_count, sample_duration);
2074 && sample_count == 1
2075 && total_sample_count > 100
2076 && sample_duration/10 > duration / total_sample_count)
2077 sample_duration = duration / total_sample_count;
2078 duration+=(int64_t)sample_duration*sample_count;
2079 total_sample_count+=sample_count;
2084 sc->duration_for_fps += duration;
2085 sc->nb_frames_for_fps += total_sample_count;
2087 if (pb->eof_reached)
2090 st->nb_frames= total_sample_count;
2092 st->duration= duration;
2093 sc->track_end = duration;
2097 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2100 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2104 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2107 MOVStreamContext *sc;
2108 unsigned int i, entries;
2110 if (c->fc->nb_streams < 1)
2112 st = c->fc->streams[c->fc->nb_streams-1];
2115 avio_r8(pb); /* version */
2116 avio_rb24(pb); /* flags */
2117 entries = avio_rb32(pb);
2119 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2123 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2124 return AVERROR_INVALIDDATA;
2125 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2127 return AVERROR(ENOMEM);
2129 for (i = 0; i < entries && !pb->eof_reached; i++) {
2130 int count =avio_rb32(pb);
2131 int duration =avio_rb32(pb);
2133 sc->ctts_data[i].count = count;
2134 sc->ctts_data[i].duration= duration;
2136 av_dlog(c->fc, "count=%d, duration=%d\n",
2139 if (FFABS(duration) > (1<<28) && i+2<entries) {
2140 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2141 av_freep(&sc->ctts_data);
2147 mov_update_dts_shift(sc, duration);
2152 if (pb->eof_reached)
2155 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2160 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2163 MOVStreamContext *sc;
2164 unsigned int i, entries;
2166 uint32_t grouping_type;
2168 if (c->fc->nb_streams < 1)
2170 st = c->fc->streams[c->fc->nb_streams-1];
2173 version = avio_r8(pb); /* version */
2174 avio_rb24(pb); /* flags */
2175 grouping_type = avio_rl32(pb);
2176 if (grouping_type != MKTAG( 'r','a','p',' '))
2177 return 0; /* only support 'rap ' grouping */
2179 avio_rb32(pb); /* grouping_type_parameter */
2181 entries = avio_rb32(pb);
2184 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2185 return AVERROR_INVALIDDATA;
2186 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2188 return AVERROR(ENOMEM);
2190 for (i = 0; i < entries && !pb->eof_reached; i++) {
2191 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2192 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2195 sc->rap_group_count = i;
2197 return pb->eof_reached ? AVERROR_EOF : 0;
2200 static void mov_build_index(MOVContext *mov, AVStream *st)
2202 MOVStreamContext *sc = st->priv_data;
2203 int64_t current_offset;
2204 int64_t current_dts = 0;
2205 unsigned int stts_index = 0;
2206 unsigned int stsc_index = 0;
2207 unsigned int stss_index = 0;
2208 unsigned int stps_index = 0;
2210 uint64_t stream_size = 0;
2212 /* adjust first dts according to edit list */
2213 if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
2214 if (sc->empty_duration)
2215 sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
2216 sc->time_offset = sc->start_time - sc->empty_duration;
2217 current_dts = -sc->time_offset;
2218 if (sc->ctts_count>0 && sc->stts_count>0 &&
2219 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2220 /* more than 16 frames delay, dts are likely wrong
2221 this happens with files created by iMovie */
2223 st->codec->has_b_frames = 1;
2227 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2228 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2229 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2230 unsigned int current_sample = 0;
2231 unsigned int stts_sample = 0;
2232 unsigned int sample_size;
2233 unsigned int distance = 0;
2234 unsigned int rap_group_index = 0;
2235 unsigned int rap_group_sample = 0;
2236 int rap_group_present = sc->rap_group_count && sc->rap_group;
2237 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2239 current_dts -= sc->dts_shift;
2241 if (!sc->sample_count || st->nb_index_entries)
2243 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2245 if (av_reallocp_array(&st->index_entries,
2246 st->nb_index_entries + sc->sample_count,
2247 sizeof(*st->index_entries)) < 0) {
2248 st->nb_index_entries = 0;
2251 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2253 for (i = 0; i < sc->chunk_count; i++) {
2254 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2255 current_offset = sc->chunk_offsets[i];
2256 while (stsc_index + 1 < sc->stsc_count &&
2257 i + 1 == sc->stsc_data[stsc_index + 1].first)
2260 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2261 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2262 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2263 sc->stsz_sample_size = sc->sample_size;
2265 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2266 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2267 sc->stsz_sample_size = sc->sample_size;
2270 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2272 if (current_sample >= sc->sample_count) {
2273 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2277 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2279 if (stss_index + 1 < sc->keyframe_count)
2281 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2283 if (stps_index + 1 < sc->stps_count)
2286 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2287 if (sc->rap_group[rap_group_index].index > 0)
2289 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2290 rap_group_sample = 0;
2294 if (sc->keyframe_absent
2296 && !rap_group_present
2297 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2301 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2302 if (sc->pseudo_stream_id == -1 ||
2303 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2304 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2305 e->pos = current_offset;
2306 e->timestamp = current_dts;
2307 e->size = sample_size;
2308 e->min_distance = distance;
2309 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2310 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2311 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2312 current_offset, current_dts, sample_size, distance, keyframe);
2313 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2314 ff_rfps_add_frame(mov->fc, st, current_dts);
2317 current_offset += sample_size;
2318 stream_size += sample_size;
2319 current_dts += sc->stts_data[stts_index].duration;
2323 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2329 if (st->duration > 0)
2330 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2332 unsigned chunk_samples, total = 0;
2334 // compute total chunk count
2335 for (i = 0; i < sc->stsc_count; i++) {
2336 unsigned count, chunk_count;
2338 chunk_samples = sc->stsc_data[i].count;
2339 if (i != sc->stsc_count - 1 &&
2340 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2341 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2345 if (sc->samples_per_frame >= 160) { // gsm
2346 count = chunk_samples / sc->samples_per_frame;
2347 } else if (sc->samples_per_frame > 1) {
2348 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2349 count = (chunk_samples+samples-1) / samples;
2351 count = (chunk_samples+1023) / 1024;
2354 if (i < sc->stsc_count - 1)
2355 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2357 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2358 total += chunk_count * count;
2361 av_dlog(mov->fc, "chunk count %d\n", total);
2362 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2364 if (av_reallocp_array(&st->index_entries,
2365 st->nb_index_entries + total,
2366 sizeof(*st->index_entries)) < 0) {
2367 st->nb_index_entries = 0;
2370 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2373 for (i = 0; i < sc->chunk_count; i++) {
2374 current_offset = sc->chunk_offsets[i];
2375 if (stsc_index + 1 < sc->stsc_count &&
2376 i + 1 == sc->stsc_data[stsc_index + 1].first)
2378 chunk_samples = sc->stsc_data[stsc_index].count;
2380 while (chunk_samples > 0) {
2382 unsigned size, samples;
2384 if (sc->samples_per_frame >= 160) { // gsm
2385 samples = sc->samples_per_frame;
2386 size = sc->bytes_per_frame;
2388 if (sc->samples_per_frame > 1) {
2389 samples = FFMIN((1024 / sc->samples_per_frame)*
2390 sc->samples_per_frame, chunk_samples);
2391 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2393 samples = FFMIN(1024, chunk_samples);
2394 size = samples * sc->sample_size;
2398 if (st->nb_index_entries >= total) {
2399 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2402 e = &st->index_entries[st->nb_index_entries++];
2403 e->pos = current_offset;
2404 e->timestamp = current_dts;
2406 e->min_distance = 0;
2407 e->flags = AVINDEX_KEYFRAME;
2408 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2409 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2412 current_offset += size;
2413 current_dts += samples;
2414 chunk_samples -= samples;
2420 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2421 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2423 /* try relative path, we do not try the absolute because it can leak information about our
2424 system to an attacker */
2425 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2426 char filename[1024];
2427 const char *src_path;
2430 /* find a source dir */
2431 src_path = strrchr(src, '/');
2437 /* find a next level down to target */
2438 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2439 if (ref->path[l] == '/') {
2440 if (i == ref->nlvl_to - 1)
2446 /* compose filename if next level down to target was found */
2447 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2448 memcpy(filename, src, src_path - src);
2449 filename[src_path - src] = 0;
2451 for (i = 1; i < ref->nlvl_from; i++)
2452 av_strlcat(filename, "../", 1024);
2454 av_strlcat(filename, ref->path + l + 1, 1024);
2456 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2459 } else if (use_absolute_path) {
2460 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2461 "this is a possible security issue\n");
2462 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2466 return AVERROR(ENOENT);
2469 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2471 if (sc->time_scale <= 0) {
2472 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2473 sc->time_scale = c->time_scale;
2474 if (sc->time_scale <= 0)
2479 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2482 MOVStreamContext *sc;
2485 st = avformat_new_stream(c->fc, NULL);
2486 if (!st) return AVERROR(ENOMEM);
2487 st->id = c->fc->nb_streams;
2488 sc = av_mallocz(sizeof(MOVStreamContext));
2489 if (!sc) return AVERROR(ENOMEM);
2492 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2493 sc->ffindex = st->index;
2495 if ((ret = mov_read_default(c, pb, atom)) < 0)
2499 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2500 (!sc->sample_size && !sc->sample_count))) {
2501 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2506 fix_timescale(c, sc);
2508 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2510 mov_build_index(c, st);
2512 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2513 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2514 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2515 c->use_absolute_path, c->fc) < 0)
2516 av_log(c->fc, AV_LOG_ERROR,
2517 "stream %d, error opening alias: path='%s', dir='%s', "
2518 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2519 st->index, dref->path, dref->dir, dref->filename,
2520 dref->volume, dref->nlvl_from, dref->nlvl_to);
2523 sc->pb_is_copied = 1;
2526 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2527 if (!st->sample_aspect_ratio.num &&
2528 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2529 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2530 ((double)st->codec->width * sc->height), INT_MAX);
2533 #if FF_API_R_FRAME_RATE
2534 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2535 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2536 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2540 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2541 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2542 TAG_IS_AVCI(st->codec->codec_tag)) {
2543 ret = ff_generate_avci_extradata(st);
2548 switch (st->codec->codec_id) {
2549 #if CONFIG_H261_DECODER
2550 case AV_CODEC_ID_H261:
2552 #if CONFIG_H263_DECODER
2553 case AV_CODEC_ID_H263:
2555 #if CONFIG_MPEG4_DECODER
2556 case AV_CODEC_ID_MPEG4:
2558 st->codec->width = 0; /* let decoder init width/height */
2559 st->codec->height= 0;
2563 /* Do not need those anymore. */
2564 av_freep(&sc->chunk_offsets);
2565 av_freep(&sc->stsc_data);
2566 av_freep(&sc->sample_sizes);
2567 av_freep(&sc->keyframes);
2568 av_freep(&sc->stts_data);
2569 av_freep(&sc->stps_data);
2570 av_freep(&sc->rap_group);
2575 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2578 c->itunes_metadata = 1;
2579 ret = mov_read_default(c, pb, atom);
2580 c->itunes_metadata = 0;
2584 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2586 int64_t end = avio_tell(pb) + size;
2587 uint8_t *key = NULL, *val = NULL;
2590 MOVStreamContext *sc;
2592 if (c->fc->nb_streams < 1)
2594 st = c->fc->streams[c->fc->nb_streams-1];
2597 for (i = 0; i < 2; i++) {
2601 if (end - avio_tell(pb) <= 12)
2604 len = avio_rb32(pb);
2605 tag = avio_rl32(pb);
2606 avio_skip(pb, 4); // flags
2608 if (len < 12 || len - 12 > end - avio_tell(pb))
2612 if (tag == MKTAG('n', 'a', 'm', 'e'))
2614 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2621 *p = av_malloc(len + 1);
2624 avio_read(pb, *p, len);
2629 if (strcmp(key, "iTunSMPB") == 0) {
2630 int priming, remainder, samples;
2631 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2632 if(priming>0 && priming<16384)
2633 sc->start_pad = priming;
2636 if (strcmp(key, "cdec") != 0) {
2637 av_dict_set(&c->fc->metadata, key, val,
2638 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2643 avio_seek(pb, end, SEEK_SET);
2649 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2651 int64_t end = avio_tell(pb) + atom.size;
2657 len = avio_rb32(pb);
2658 tag = avio_rl32(pb);
2660 if (len > atom.size)
2663 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2664 uint8_t domain[128];
2667 avio_skip(pb, 4); // flags
2670 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2671 avio_skip(pb, len - domain_len);
2672 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2676 av_log(c->fc, AV_LOG_VERBOSE,
2677 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2681 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2683 while (atom.size > 8) {
2684 uint32_t tag = avio_rl32(pb);
2686 if (tag == MKTAG('h','d','l','r')) {
2687 avio_seek(pb, -8, SEEK_CUR);
2689 return mov_read_default(c, pb, atom);
2695 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2700 int64_t disp_transform[2];
2701 int display_matrix[3][3];
2703 MOVStreamContext *sc;
2707 if (c->fc->nb_streams < 1)
2709 st = c->fc->streams[c->fc->nb_streams-1];
2712 version = avio_r8(pb);
2713 flags = avio_rb24(pb);
2714 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2720 avio_rb32(pb); /* creation time */
2721 avio_rb32(pb); /* modification time */
2723 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2724 avio_rb32(pb); /* reserved */
2726 /* highlevel (considering edits) duration in movie timebase */
2727 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2728 avio_rb32(pb); /* reserved */
2729 avio_rb32(pb); /* reserved */
2731 avio_rb16(pb); /* layer */
2732 avio_rb16(pb); /* alternate group */
2733 avio_rb16(pb); /* volume */
2734 avio_rb16(pb); /* reserved */
2736 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2737 // they're kept in fixed point format through all calculations
2738 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2739 // side data, but the scale factor is not needed to calculate aspect ratio
2740 for (i = 0; i < 3; i++) {
2741 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2742 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2743 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2746 width = avio_rb32(pb); // 16.16 fixed point track width
2747 height = avio_rb32(pb); // 16.16 fixed point track height
2748 sc->width = width >> 16;
2749 sc->height = height >> 16;
2751 // save the matrix and add rotate metadata when it is not the default
2753 if (display_matrix[0][0] != (1 << 16) ||
2754 display_matrix[1][1] != (1 << 16) ||
2755 display_matrix[2][2] != (1 << 30) ||
2756 display_matrix[0][1] || display_matrix[0][2] ||
2757 display_matrix[1][0] || display_matrix[1][2] ||
2758 display_matrix[2][0] || display_matrix[2][1]) {
2762 av_freep(&sc->display_matrix);
2763 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2764 if (!sc->display_matrix)
2765 return AVERROR(ENOMEM);
2767 for (i = 0; i < 3; i++)
2768 for (j = 0; j < 3; j++)
2769 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2771 rotate = av_display_rotation_get(sc->display_matrix);
2772 if (!isnan(rotate)) {
2773 char rotate_buf[64];
2775 if (rotate < 0) // for backward compatibility
2777 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2778 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2782 // transform the display width/height according to the matrix
2783 // skip this if the display matrix is the default identity matrix
2784 // or if it is rotating the picture, ex iPhone 3GS
2785 // to keep the same scale, use [width height 1<<16]
2786 if (width && height &&
2787 ((display_matrix[0][0] != 65536 ||
2788 display_matrix[1][1] != 65536) &&
2789 !display_matrix[0][1] &&
2790 !display_matrix[1][0] &&
2791 !display_matrix[2][0] && !display_matrix[2][1])) {
2792 for (i = 0; i < 2; i++)
2794 (int64_t) width * display_matrix[0][i] +
2795 (int64_t) height * display_matrix[1][i] +
2796 ((int64_t) display_matrix[2][i] << 16);
2798 //sample aspect ratio is new width/height divided by old width/height
2799 st->sample_aspect_ratio = av_d2q(
2800 ((double) disp_transform[0] * height) /
2801 ((double) disp_transform[1] * width), INT_MAX);
2806 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2808 MOVFragment *frag = &c->fragment;
2809 MOVTrackExt *trex = NULL;
2810 int flags, track_id, i;
2812 avio_r8(pb); /* version */
2813 flags = avio_rb24(pb);
2815 track_id = avio_rb32(pb);
2817 return AVERROR_INVALIDDATA;
2818 frag->track_id = track_id;
2819 for (i = 0; i < c->trex_count; i++)
2820 if (c->trex_data[i].track_id == frag->track_id) {
2821 trex = &c->trex_data[i];
2825 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2826 return AVERROR_INVALIDDATA;
2829 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2830 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2831 frag->moof_offset : frag->implicit_offset;
2832 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2834 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2835 avio_rb32(pb) : trex->duration;
2836 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2837 avio_rb32(pb) : trex->size;
2838 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2839 avio_rb32(pb) : trex->flags;
2840 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2844 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2846 c->chapter_track = avio_rb32(pb);
2850 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2855 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2856 return AVERROR_INVALIDDATA;
2857 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2858 sizeof(*c->trex_data))) < 0) {
2863 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2865 trex = &c->trex_data[c->trex_count++];
2866 avio_r8(pb); /* version */
2867 avio_rb24(pb); /* flags */
2868 trex->track_id = avio_rb32(pb);
2869 trex->stsd_id = avio_rb32(pb);
2870 trex->duration = avio_rb32(pb);
2871 trex->size = avio_rb32(pb);
2872 trex->flags = avio_rb32(pb);
2876 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2878 MOVFragment *frag = &c->fragment;
2879 AVStream *st = NULL;
2880 MOVStreamContext *sc;
2884 int data_offset = 0;
2885 unsigned entries, first_sample_flags = frag->flags;
2886 int flags, distance, i, found_keyframe = 0, err;
2888 for (i = 0; i < c->fc->nb_streams; i++) {
2889 if (c->fc->streams[i]->id == frag->track_id) {
2890 st = c->fc->streams[i];
2895 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2896 return AVERROR_INVALIDDATA;
2899 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
2901 avio_r8(pb); /* version */
2902 flags = avio_rb24(pb);
2903 entries = avio_rb32(pb);
2904 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
2906 /* Always assume the presence of composition time offsets.
2907 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2908 * 1) in the initial movie, there are no samples.
2909 * 2) in the first movie fragment, there is only one sample without composition time offset.
2910 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2911 if (!sc->ctts_count && sc->sample_count)
2913 /* Complement ctts table if moov atom doesn't have ctts atom. */
2914 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
2916 return AVERROR(ENOMEM);
2917 sc->ctts_data = ctts_data;
2918 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
2919 sc->ctts_data[sc->ctts_count].duration = 0;
2922 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
2923 return AVERROR_INVALIDDATA;
2924 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
2925 sizeof(*sc->ctts_data))) < 0) {
2929 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
2930 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
2931 dts = sc->track_end - sc->time_offset;
2932 offset = frag->base_data_offset + data_offset;
2934 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
2935 for (i = 0; i < entries && !pb->eof_reached; i++) {
2936 unsigned sample_size = frag->size;
2937 int sample_flags = i ? frag->flags : first_sample_flags;
2938 unsigned sample_duration = frag->duration;
2941 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
2942 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
2943 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
2944 sc->ctts_data[sc->ctts_count].count = 1;
2945 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
2947 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
2949 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
2951 else if (!found_keyframe)
2952 keyframe = found_keyframe =
2953 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
2954 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
2957 av_add_index_entry(st, offset, dts, sample_size, distance,
2958 keyframe ? AVINDEX_KEYFRAME : 0);
2959 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2960 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
2961 offset, dts, sample_size, distance, keyframe);
2963 dts += sample_duration;
2964 offset += sample_size;
2965 sc->data_size += sample_size;
2966 sc->duration_for_fps += sample_duration;
2967 sc->nb_frames_for_fps ++;
2970 if (pb->eof_reached)
2973 frag->implicit_offset = offset;
2974 st->duration = sc->track_end = dts + sc->time_offset;
2978 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2979 /* like the files created with Adobe Premiere 5.0, for samples see */
2980 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
2981 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2986 return 0; /* continue */
2987 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2988 avio_skip(pb, atom.size - 4);
2991 atom.type = avio_rl32(pb);
2993 if (atom.type != MKTAG('m','d','a','t')) {
2994 avio_skip(pb, atom.size);
2997 err = mov_read_mdat(c, pb, atom);
3001 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3006 uint8_t *moov_data; /* uncompressed data */
3007 long cmov_len, moov_len;
3010 avio_rb32(pb); /* dcom atom */
3011 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3012 return AVERROR_INVALIDDATA;
3013 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3014 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3015 return AVERROR_INVALIDDATA;
3017 avio_rb32(pb); /* cmvd atom */
3018 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3019 return AVERROR_INVALIDDATA;
3020 moov_len = avio_rb32(pb); /* uncompressed size */
3021 cmov_len = atom.size - 6 * 4;
3023 cmov_data = av_malloc(cmov_len);
3025 return AVERROR(ENOMEM);
3026 moov_data = av_malloc(moov_len);
3029 return AVERROR(ENOMEM);
3031 avio_read(pb, cmov_data, cmov_len);
3032 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3033 goto free_and_return;
3034 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3035 goto free_and_return;
3036 atom.type = MKTAG('m','o','o','v');
3037 atom.size = moov_len;
3038 ret = mov_read_default(c, &ctx, atom);
3044 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3045 return AVERROR(ENOSYS);
3049 /* edit list atom */
3050 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3052 MOVStreamContext *sc;
3053 int i, edit_count, version, edit_start_index = 0;
3054 int unsupported = 0;
3056 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3058 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3060 version = avio_r8(pb); /* version */
3061 avio_rb24(pb); /* flags */
3062 edit_count = avio_rb32(pb); /* entries */
3064 if ((uint64_t)edit_count*12+8 > atom.size)
3065 return AVERROR_INVALIDDATA;
3067 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3068 for (i=0; i<edit_count; i++){
3073 duration = avio_rb64(pb);
3074 time = avio_rb64(pb);
3076 duration = avio_rb32(pb); /* segment duration */
3077 time = (int32_t)avio_rb32(pb); /* media time */
3079 rate = avio_rb32(pb);
3080 if (i == 0 && time == -1) {
3081 sc->empty_duration = duration;
3082 edit_start_index = 1;
3083 } else if (i == edit_start_index && time >= 0)
3084 sc->start_time = time;
3088 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3089 duration, time, rate / 65536.0);
3093 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3094 "a/v desync might occur, patch welcome\n");
3099 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3101 MOVStreamContext *sc;
3103 if (c->fc->nb_streams < 1)
3104 return AVERROR_INVALIDDATA;
3105 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3106 sc->timecode_track = avio_rb32(pb);
3110 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3114 static const uint8_t uuid_isml_manifest[] = {
3115 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3116 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3119 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3120 return AVERROR_INVALIDDATA;
3122 ret = avio_read(pb, uuid, sizeof(uuid));
3125 } else if (ret != sizeof(uuid)) {
3126 return AVERROR_INVALIDDATA;
3128 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3129 uint8_t *buffer, *ptr;
3131 size_t len = atom.size - sizeof(uuid);
3134 return AVERROR_INVALIDDATA;
3136 ret = avio_skip(pb, 4); // zeroes
3139 buffer = av_mallocz(len + 1);
3141 return AVERROR(ENOMEM);
3143 ret = avio_read(pb, buffer, len);
3147 } else if (ret != len) {
3149 return AVERROR_INVALIDDATA;
3153 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3154 ptr += sizeof("systemBitrate=\"") - 1;
3155 c->bitrates_count++;
3156 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3158 c->bitrates_count = 0;
3160 return AVERROR(ENOMEM);
3163 ret = strtol(ptr, &endptr, 10);
3164 if (ret < 0 || errno || *endptr != '"') {
3165 c->bitrates[c->bitrates_count - 1] = 0;
3167 c->bitrates[c->bitrates_count - 1] = ret;
3176 static const MOVParseTableEntry mov_default_parse_table[] = {
3177 { MKTAG('A','C','L','R'), mov_read_avid },
3178 { MKTAG('A','P','R','G'), mov_read_avid },
3179 { MKTAG('A','A','L','P'), mov_read_avid },
3180 { MKTAG('A','R','E','S'), mov_read_ares },
3181 { MKTAG('a','v','s','s'), mov_read_avss },
3182 { MKTAG('c','h','p','l'), mov_read_chpl },
3183 { MKTAG('c','o','6','4'), mov_read_stco },
3184 { MKTAG('c','o','l','r'), mov_read_colr },
3185 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3186 { MKTAG('d','i','n','f'), mov_read_default },
3187 { MKTAG('d','r','e','f'), mov_read_dref },
3188 { MKTAG('e','d','t','s'), mov_read_default },
3189 { MKTAG('e','l','s','t'), mov_read_elst },
3190 { MKTAG('e','n','d','a'), mov_read_enda },
3191 { MKTAG('f','i','e','l'), mov_read_fiel },
3192 { MKTAG('f','t','y','p'), mov_read_ftyp },
3193 { MKTAG('g','l','b','l'), mov_read_glbl },
3194 { MKTAG('h','d','l','r'), mov_read_hdlr },
3195 { MKTAG('i','l','s','t'), mov_read_ilst },
3196 { MKTAG('j','p','2','h'), mov_read_jp2h },
3197 { MKTAG('m','d','a','t'), mov_read_mdat },
3198 { MKTAG('m','d','h','d'), mov_read_mdhd },
3199 { MKTAG('m','d','i','a'), mov_read_default },
3200 { MKTAG('m','e','t','a'), mov_read_meta },
3201 { MKTAG('m','i','n','f'), mov_read_default },
3202 { MKTAG('m','o','o','f'), mov_read_moof },
3203 { MKTAG('m','o','o','v'), mov_read_moov },
3204 { MKTAG('m','v','e','x'), mov_read_default },
3205 { MKTAG('m','v','h','d'), mov_read_mvhd },
3206 { MKTAG('S','M','I',' '), mov_read_svq3 },
3207 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3208 { MKTAG('a','v','c','C'), mov_read_glbl },
3209 { MKTAG('p','a','s','p'), mov_read_pasp },
3210 { MKTAG('s','t','b','l'), mov_read_default },
3211 { MKTAG('s','t','c','o'), mov_read_stco },
3212 { MKTAG('s','t','p','s'), mov_read_stps },
3213 { MKTAG('s','t','r','f'), mov_read_strf },
3214 { MKTAG('s','t','s','c'), mov_read_stsc },
3215 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3216 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3217 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3218 { MKTAG('s','t','t','s'), mov_read_stts },
3219 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3220 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3221 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3222 { MKTAG('t','r','a','k'), mov_read_trak },
3223 { MKTAG('t','r','a','f'), mov_read_default },
3224 { MKTAG('t','r','e','f'), mov_read_default },
3225 { MKTAG('t','m','c','d'), mov_read_tmcd },
3226 { MKTAG('c','h','a','p'), mov_read_chap },
3227 { MKTAG('t','r','e','x'), mov_read_trex },
3228 { MKTAG('t','r','u','n'), mov_read_trun },
3229 { MKTAG('u','d','t','a'), mov_read_default },
3230 { MKTAG('w','a','v','e'), mov_read_wave },
3231 { MKTAG('e','s','d','s'), mov_read_esds },
3232 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3233 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3234 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3235 { MKTAG('w','f','e','x'), mov_read_wfex },
3236 { MKTAG('c','m','o','v'), mov_read_cmov },
3237 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3238 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3239 { MKTAG('s','b','g','p'), mov_read_sbgp },
3240 { MKTAG('h','v','c','C'), mov_read_glbl },
3241 { MKTAG('u','u','i','d'), mov_read_uuid },
3242 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3243 { MKTAG('-','-','-','-'), mov_read_custom },
3247 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3249 int64_t total_size = 0;
3254 atom.size = INT64_MAX;
3255 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3256 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3259 if (atom.size >= 8) {
3260 a.size = avio_rb32(pb);
3261 a.type = avio_rl32(pb);
3262 if (a.type == MKTAG('f','r','e','e') &&
3266 uint32_t *type = (uint32_t *)buf + 1;
3267 avio_read(pb, buf, 8);
3268 avio_seek(pb, -8, SEEK_CUR);
3269 if (*type == MKTAG('m','v','h','d') ||
3270 *type == MKTAG('c','m','o','v')) {
3271 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3272 a.type = MKTAG('m','o','o','v');
3275 if (atom.type != MKTAG('r','o','o','t') &&
3276 atom.type != MKTAG('m','o','o','v'))
3278 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3280 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3286 if (a.size == 1) { /* 64 bit extended size */
3287 a.size = avio_rb64(pb) - 8;
3291 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3292 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3294 a.size = atom.size - total_size + 8;
3299 a.size = FFMIN(a.size, atom.size - total_size);
3301 for (i = 0; mov_default_parse_table[i].type; i++)
3302 if (mov_default_parse_table[i].type == a.type) {
3303 parse = mov_default_parse_table[i].parse;
3307 // container is user data
3308 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3309 atom.type == MKTAG('i','l','s','t')))
3310 parse = mov_read_udta_string;
3312 if (!parse) { /* skip leaf atoms data */
3313 avio_skip(pb, a.size);
3315 int64_t start_pos = avio_tell(pb);
3317 int err = parse(c, pb, a);
3320 if (c->found_moov && c->found_mdat &&
3321 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3322 start_pos + a.size == avio_size(pb))) {
3323 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3324 c->next_root_atom = start_pos + a.size;
3327 left = a.size - avio_tell(pb) + start_pos;
3328 if (left > 0) /* skip garbage at atom end */
3329 avio_skip(pb, left);
3330 else if (left < 0) {
3331 av_log(c->fc, AV_LOG_WARNING,
3332 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3333 (char*)&a.type, -left);
3334 avio_seek(pb, left, SEEK_CUR);
3338 total_size += a.size;
3341 if (total_size < atom.size && atom.size < 0x7ffff)
3342 avio_skip(pb, atom.size - total_size);
3347 static int mov_probe(AVProbeData *p)
3352 int moov_offset = -1;
3354 /* check file header */
3357 /* ignore invalid offset */
3358 if ((offset + 8) > (unsigned int)p->buf_size)
3360 tag = AV_RL32(p->buf + offset + 4);
3362 /* check for obvious tags */
3363 case MKTAG('m','o','o','v'):
3364 moov_offset = offset + 4;
3365 case MKTAG('m','d','a','t'):
3366 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3367 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3368 case MKTAG('f','t','y','p'):
3369 if (AV_RB32(p->buf+offset) < 8 &&
3370 (AV_RB32(p->buf+offset) != 1 ||
3371 offset + 12 > (unsigned int)p->buf_size ||
3372 AV_RB64(p->buf+offset + 8) == 0)) {
3373 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3374 } else if (tag == MKTAG('f','t','y','p') &&
3375 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3376 score = FFMAX(score, 5);
3378 score = AVPROBE_SCORE_MAX;
3380 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3382 /* those are more common words, so rate then a bit less */
3383 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3384 case MKTAG('w','i','d','e'):
3385 case MKTAG('f','r','e','e'):
3386 case MKTAG('j','u','n','k'):
3387 case MKTAG('p','i','c','t'):
3388 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3389 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3391 case MKTAG(0x82,0x82,0x7f,0x7d):
3392 case MKTAG('s','k','i','p'):
3393 case MKTAG('u','u','i','d'):
3394 case MKTAG('p','r','f','l'):
3395 /* if we only find those cause probedata is too small at least rate them */
3396 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3397 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3400 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3403 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3404 /* moov atom in the header - we should make sure that this is not a
3405 * MOV-packed MPEG-PS */
3406 offset = moov_offset;
3408 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3409 /* We found an actual hdlr atom */
3410 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3411 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3412 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3413 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3414 /* We found a media handler reference atom describing an
3415 * MPEG-PS-in-MOV, return a
3416 * low score to force expanding the probe window until
3417 * mpegps_probe finds what it needs */
3428 // must be done after parsing all trak because there's no order requirement
3429 static void mov_read_chapters(AVFormatContext *s)
3431 MOVContext *mov = s->priv_data;
3432 AVStream *st = NULL;
3433 MOVStreamContext *sc;
3437 for (i = 0; i < s->nb_streams; i++)
3438 if (s->streams[i]->id == mov->chapter_track) {
3443 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3447 st->discard = AVDISCARD_ALL;
3449 cur_pos = avio_tell(sc->pb);
3451 for (i = 0; i < st->nb_index_entries; i++) {
3452 AVIndexEntry *sample = &st->index_entries[i];
3453 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3458 if (end < sample->timestamp) {
3459 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3460 end = AV_NOPTS_VALUE;
3463 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3464 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3468 // the first two bytes are the length of the title
3469 len = avio_rb16(sc->pb);
3470 if (len > sample->size-2)
3472 title_len = 2*len + 1;
3473 if (!(title = av_mallocz(title_len)))
3476 // The samples could theoretically be in any encoding if there's an encd
3477 // atom following, but in practice are only utf-8 or utf-16, distinguished
3478 // instead by the presence of a BOM
3482 ch = avio_rb16(sc->pb);
3484 avio_get_str16be(sc->pb, len, title, title_len);
3485 else if (ch == 0xfffe)
3486 avio_get_str16le(sc->pb, len, title, title_len);
3489 if (len == 1 || len == 2)
3492 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3496 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3500 avio_seek(sc->pb, cur_pos, SEEK_SET);
3503 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3504 uint32_t value, int flags)
3507 char buf[AV_TIMECODE_STR_SIZE];
3508 AVRational rate = {st->codec->time_base.den,
3509 st->codec->time_base.num};
3510 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3513 av_dict_set(&st->metadata, "timecode",
3514 av_timecode_make_string(&tc, buf, value), 0);
3518 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3520 MOVStreamContext *sc = st->priv_data;
3522 int64_t cur_pos = avio_tell(sc->pb);
3525 if (!st->nb_index_entries)
3528 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3529 value = avio_rb32(s->pb);
3531 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3532 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3533 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3535 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3536 * not the case) and thus assume "frame number format" instead of QT one.
3537 * No sample with tmcd track can be found with a QT timecode at the moment,
3538 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3540 parse_timecode_in_framenum_format(s, st, value, flags);
3542 avio_seek(sc->pb, cur_pos, SEEK_SET);
3546 static int mov_read_close(AVFormatContext *s)
3548 MOVContext *mov = s->priv_data;
3551 for (i = 0; i < s->nb_streams; i++) {
3552 AVStream *st = s->streams[i];
3553 MOVStreamContext *sc = st->priv_data;
3555 av_freep(&sc->ctts_data);
3556 for (j = 0; j < sc->drefs_count; j++) {
3557 av_freep(&sc->drefs[j].path);
3558 av_freep(&sc->drefs[j].dir);
3560 av_freep(&sc->drefs);
3562 sc->drefs_count = 0;
3564 if (!sc->pb_is_copied)
3568 av_freep(&sc->chunk_offsets);
3569 av_freep(&sc->stsc_data);
3570 av_freep(&sc->sample_sizes);
3571 av_freep(&sc->keyframes);
3572 av_freep(&sc->stts_data);
3573 av_freep(&sc->stps_data);
3574 av_freep(&sc->rap_group);
3575 av_freep(&sc->display_matrix);
3578 if (mov->dv_demux) {
3579 avformat_free_context(mov->dv_fctx);
3580 mov->dv_fctx = NULL;
3583 av_freep(&mov->trex_data);
3584 av_freep(&mov->bitrates);
3589 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3593 for (i = 0; i < s->nb_streams; i++) {
3594 AVStream *st = s->streams[i];
3595 MOVStreamContext *sc = st->priv_data;
3597 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3598 sc->timecode_track == tmcd_id)
3604 /* look for a tmcd track not referenced by any video track, and export it globally */
3605 static void export_orphan_timecode(AVFormatContext *s)
3609 for (i = 0; i < s->nb_streams; i++) {
3610 AVStream *st = s->streams[i];
3612 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3613 !tmcd_is_referenced(s, i + 1)) {
3614 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3616 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3623 static int mov_read_header(AVFormatContext *s)
3625 MOVContext *mov = s->priv_data;
3626 AVIOContext *pb = s->pb;
3628 MOVAtom atom = { AV_RL32("root") };
3632 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3634 atom.size = avio_size(pb);
3636 atom.size = INT64_MAX;
3638 /* check MOV header */
3640 if (mov->moov_retry)
3641 avio_seek(pb, 0, SEEK_SET);
3642 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3643 av_log(s, AV_LOG_ERROR, "error reading header\n");
3647 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3648 if (!mov->found_moov) {
3649 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3651 return AVERROR_INVALIDDATA;
3653 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3656 if (mov->chapter_track > 0)
3657 mov_read_chapters(s);
3658 for (i = 0; i < s->nb_streams; i++)
3659 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3660 mov_read_timecode_track(s, s->streams[i]);
3663 /* copy timecode metadata from tmcd tracks to the related video streams */
3664 for (i = 0; i < s->nb_streams; i++) {
3665 AVStream *st = s->streams[i];
3666 MOVStreamContext *sc = st->priv_data;
3667 if (sc->timecode_track > 0) {
3668 AVDictionaryEntry *tcr;
3669 int tmcd_st_id = -1;
3671 for (j = 0; j < s->nb_streams; j++)
3672 if (s->streams[j]->id == sc->timecode_track)
3675 if (tmcd_st_id < 0 || tmcd_st_id == i)
3677 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
3679 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
3682 export_orphan_timecode(s);
3684 for (i = 0; i < s->nb_streams; i++) {
3685 AVStream *st = s->streams[i];
3686 MOVStreamContext *sc = st->priv_data;
3687 fix_timescale(mov, sc);
3688 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
3689 st->skip_samples = sc->start_pad;
3691 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
3692 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3693 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
3694 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3695 if (st->codec->width <= 0 && st->codec->height <= 0) {
3696 st->codec->width = sc->width;
3697 st->codec->height = sc->height;
3699 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3700 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3706 if (mov->trex_data) {
3707 for (i = 0; i < s->nb_streams; i++) {
3708 AVStream *st = s->streams[i];
3709 MOVStreamContext *sc = st->priv_data;
3710 if (st->duration > 0)
3711 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3715 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
3716 if (mov->bitrates[i]) {
3717 s->streams[i]->codec->bit_rate = mov->bitrates[i];
3721 ff_rfps_calculate(s);
3723 for (i = 0; i < s->nb_streams; i++) {
3724 AVStream *st = s->streams[i];
3725 MOVStreamContext *sc = st->priv_data;
3727 switch (st->codec->codec_type) {
3728 case AVMEDIA_TYPE_AUDIO:
3729 err = ff_replaygain_export(st, s->metadata);
3735 case AVMEDIA_TYPE_VIDEO:
3736 if (sc->display_matrix) {
3737 AVPacketSideData *sd, *tmp;
3739 tmp = av_realloc_array(st->side_data,
3740 st->nb_side_data + 1, sizeof(*tmp));
3742 return AVERROR(ENOMEM);
3744 st->side_data = tmp;
3747 sd = &st->side_data[st->nb_side_data - 1];
3748 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
3749 sd->size = sizeof(int32_t) * 9;
3750 sd->data = (uint8_t*)sc->display_matrix;
3751 sc->display_matrix = NULL;
3760 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
3762 AVIndexEntry *sample = NULL;
3763 int64_t best_dts = INT64_MAX;
3765 for (i = 0; i < s->nb_streams; i++) {
3766 AVStream *avst = s->streams[i];
3767 MOVStreamContext *msc = avst->priv_data;
3768 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
3769 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
3770 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
3771 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
3772 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
3774 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
3775 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
3776 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
3777 sample = current_sample;
3786 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
3788 MOVContext *mov = s->priv_data;
3789 MOVStreamContext *sc;
3790 AVIndexEntry *sample;
3791 AVStream *st = NULL;
3795 sample = mov_find_next_sample(s, &st);
3797 mov->found_mdat = 0;
3798 if (!mov->next_root_atom)
3800 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
3801 mov->next_root_atom = 0;
3802 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
3805 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
3809 /* must be done just before reading, to avoid infinite loop on sample */
3810 sc->current_sample++;
3812 if (mov->next_root_atom) {
3813 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
3814 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
3817 if (st->discard != AVDISCARD_ALL) {
3818 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3819 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
3820 sc->ffindex, sample->pos);
3821 return AVERROR_INVALIDDATA;
3823 ret = av_get_packet(sc->pb, pkt, sample->size);
3826 if (sc->has_palette) {
3829 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
3831 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
3833 memcpy(pal, sc->palette, AVPALETTE_SIZE);
3834 sc->has_palette = 0;
3837 #if CONFIG_DV_DEMUXER
3838 if (mov->dv_demux && sc->dv_audio_container) {
3839 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
3842 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
3849 pkt->stream_index = sc->ffindex;
3850 pkt->dts = sample->timestamp;
3851 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
3852 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
3853 /* update ctts context */
3855 if (sc->ctts_index < sc->ctts_count &&
3856 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
3858 sc->ctts_sample = 0;
3861 pkt->dts = AV_NOPTS_VALUE;
3863 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
3864 st->index_entries[sc->current_sample].timestamp : st->duration;
3865 pkt->duration = next_dts - pkt->dts;
3866 pkt->pts = pkt->dts;
3868 if (st->discard == AVDISCARD_ALL)
3870 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
3871 pkt->pos = sample->pos;
3872 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
3873 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
3877 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
3879 MOVStreamContext *sc = st->priv_data;
3880 int sample, time_sample;
3883 sample = av_index_search_timestamp(st, timestamp, flags);
3884 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
3885 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
3887 if (sample < 0) /* not sure what to do */
3888 return AVERROR_INVALIDDATA;
3889 sc->current_sample = sample;
3890 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
3891 /* adjust ctts index */
3892 if (sc->ctts_data) {
3894 for (i = 0; i < sc->ctts_count; i++) {
3895 int next = time_sample + sc->ctts_data[i].count;
3896 if (next > sc->current_sample) {
3898 sc->ctts_sample = sc->current_sample - time_sample;
3907 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
3910 int64_t seek_timestamp, timestamp;
3914 if (stream_index >= s->nb_streams)
3915 return AVERROR_INVALIDDATA;
3917 st = s->streams[stream_index];
3918 sample = mov_seek_stream(s, st, sample_time, flags);
3922 /* adjust seek timestamp to found sample timestamp */
3923 seek_timestamp = st->index_entries[sample].timestamp;
3925 for (i = 0; i < s->nb_streams; i++) {
3926 MOVStreamContext *sc = s->streams[i]->priv_data;
3928 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
3930 if (stream_index == i)
3933 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
3934 mov_seek_stream(s, st, timestamp, flags);
3939 static const AVOption options[] = {
3940 {"use_absolute_path",
3941 "allow using absolute path when opening alias, this is a possible security issue",
3942 offsetof(MOVContext, use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
3943 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
3944 {"ignore_editlist", "", offsetof(MOVContext, ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
3945 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
3949 static const AVClass mov_class = {
3950 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
3951 .item_name = av_default_item_name,
3953 .version = LIBAVUTIL_VERSION_INT,
3956 AVInputFormat ff_mov_demuxer = {
3957 .name = "mov,mp4,m4a,3gp,3g2,mj2",
3958 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3959 .priv_data_size = sizeof(MOVContext),
3960 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
3961 .read_probe = mov_probe,
3962 .read_header = mov_read_header,
3963 .read_packet = mov_read_packet,
3964 .read_close = mov_read_close,
3965 .read_seek = mov_read_seek,
3966 .priv_class = &mov_class,
3967 .flags = AVFMT_NO_BYTE_SEEK,