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 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/intfloat.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/time_internal.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/dict.h"
38 #include "libavutil/display.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/timecode.h"
41 #include "libavcodec/ac3tab.h"
44 #include "avio_internal.h"
47 #include "libavcodec/get_bits.h"
50 #include "replaygain.h"
56 #include "qtpalette.h"
58 /* those functions parse an atom */
59 /* links atom IDs to parse functions */
60 typedef struct MOVParseTableEntry {
62 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
65 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
66 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
68 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
69 unsigned len, const char *key)
73 short current, total = 0;
74 avio_rb16(pb); // unknown
75 current = avio_rb16(pb);
77 total = avio_rb16(pb);
79 snprintf(buf, sizeof(buf), "%d", current);
81 snprintf(buf, sizeof(buf), "%d/%d", current, total);
82 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
83 av_dict_set(&c->fc->metadata, key, buf, 0);
88 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
89 unsigned len, const char *key)
91 /* bypass padding bytes */
96 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
97 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
102 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
103 unsigned len, const char *key)
105 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
106 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
111 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
112 unsigned len, const char *key)
116 avio_r8(pb); // unknown
119 if (genre < 1 || genre > ID3v1_GENRE_MAX)
121 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
122 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
127 static const uint32_t mac_to_unicode[128] = {
128 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
129 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
130 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
131 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
132 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
133 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
134 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
135 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
136 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
137 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
138 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
139 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
140 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
141 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
142 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
143 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
146 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
147 char *dst, int dstlen)
150 char *end = dst+dstlen-1;
153 for (i = 0; i < len; i++) {
154 uint8_t t, c = avio_r8(pb);
155 if (c < 0x80 && p < end)
158 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
164 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
168 MOVStreamContext *sc;
173 case 0xd: id = AV_CODEC_ID_MJPEG; break;
174 case 0xe: id = AV_CODEC_ID_PNG; break;
175 case 0x1b: id = AV_CODEC_ID_BMP; break;
177 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
182 st = avformat_new_stream(c->fc, NULL);
184 return AVERROR(ENOMEM);
185 sc = av_mallocz(sizeof(*sc));
187 return AVERROR(ENOMEM);
190 ret = av_get_packet(pb, &pkt, len);
194 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
196 st->attached_pic = pkt;
197 st->attached_pic.stream_index = st->index;
198 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
200 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
201 st->codec->codec_id = id;
206 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
208 char language[4] = { 0 };
210 uint16_t langcode = 0;
211 double longitude, latitude;
212 const char *key = "location";
214 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
215 return AVERROR_INVALIDDATA;
217 avio_skip(pb, 4); // version+flags
218 langcode = avio_rb16(pb);
219 ff_mov_lang_to_iso639(langcode, language);
222 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
224 return AVERROR_INVALIDDATA;
225 avio_skip(pb, 1); // role
229 return AVERROR_INVALIDDATA;
230 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
231 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
233 // Try to output in the same format as the ?xyz field
234 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
235 if (*language && strcmp(language, "und")) {
237 snprintf(key2, sizeof(key2), "%s-%s", key, language);
238 av_dict_set(&c->fc->metadata, key2, buf, 0);
240 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
241 return av_dict_set(&c->fc->metadata, key, buf, 0);
244 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
247 char key2[32], language[4] = {0};
249 const char *key = NULL;
250 uint16_t langcode = 0;
251 uint32_t data_type = 0, str_size, str_size_alloc;
252 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
256 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
257 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
258 case MKTAG( 'X','M','P','_'):
259 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
260 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
261 case MKTAG( 'a','k','I','D'): key = "account_type";
262 parse = mov_metadata_int8_no_padding; break;
263 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
264 case MKTAG( 'c','a','t','g'): key = "category"; break;
265 case MKTAG( 'c','p','i','l'): key = "compilation";
266 parse = mov_metadata_int8_no_padding; break;
267 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
268 case MKTAG( 'd','e','s','c'): key = "description"; break;
269 case MKTAG( 'd','i','s','k'): key = "disc";
270 parse = mov_metadata_track_or_disc_number; break;
271 case MKTAG( 'e','g','i','d'): key = "episode_uid";
272 parse = mov_metadata_int8_no_padding; break;
273 case MKTAG( 'g','n','r','e'): key = "genre";
274 parse = mov_metadata_gnre; break;
275 case MKTAG( 'h','d','v','d'): key = "hd_video";
276 parse = mov_metadata_int8_no_padding; break;
277 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
278 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
279 case MKTAG( 'l','o','c','i'):
280 return mov_metadata_loci(c, pb, atom.size);
281 case MKTAG( 'p','c','s','t'): key = "podcast";
282 parse = mov_metadata_int8_no_padding; break;
283 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
284 parse = mov_metadata_int8_no_padding; break;
285 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
286 case MKTAG( 'r','t','n','g'): key = "rating";
287 parse = mov_metadata_int8_no_padding; break;
288 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
289 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
290 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
291 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
292 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
293 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
294 case MKTAG( 's','t','i','k'): key = "media_type";
295 parse = mov_metadata_int8_no_padding; break;
296 case MKTAG( 't','r','k','n'): key = "track";
297 parse = mov_metadata_track_or_disc_number; break;
298 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
299 case MKTAG( 't','v','e','s'): key = "episode_sort";
300 parse = mov_metadata_int8_bypass_padding; break;
301 case MKTAG( 't','v','n','n'): key = "network"; break;
302 case MKTAG( 't','v','s','h'): key = "show"; break;
303 case MKTAG( 't','v','s','n'): key = "season_number";
304 parse = mov_metadata_int8_bypass_padding; break;
305 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
306 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
307 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
308 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
309 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
310 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
311 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
312 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
313 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
314 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
315 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
316 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
317 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
318 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
319 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
320 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
321 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
322 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
323 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
324 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
325 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
326 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
327 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
328 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
329 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
330 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
331 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
332 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
333 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
334 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
335 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
336 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
337 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
338 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
339 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
342 if (c->itunes_metadata && atom.size > 8) {
343 int data_size = avio_rb32(pb);
344 int tag = avio_rl32(pb);
345 if (tag == MKTAG('d','a','t','a')) {
346 data_type = avio_rb32(pb); // type
347 avio_rb32(pb); // unknown
348 str_size = data_size - 16;
351 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
352 int ret = mov_read_covr(c, pb, data_type, str_size);
354 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
359 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
360 str_size = avio_rb16(pb); // string length
361 langcode = avio_rb16(pb);
362 ff_mov_lang_to_iso639(langcode, language);
365 str_size = atom.size;
367 if (c->export_all && !key) {
368 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
374 if (atom.size < 0 || str_size >= INT_MAX/2)
375 return AVERROR_INVALIDDATA;
377 // worst-case requirement for output string in case of utf8 coded input
378 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
379 str = av_mallocz(str_size_alloc);
381 return AVERROR(ENOMEM);
384 parse(c, pb, str_size, key);
386 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
387 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
389 int ret = avio_read(pb, str, str_size);
390 if (ret != str_size) {
392 return ret < 0 ? ret : AVERROR_INVALIDDATA;
396 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
397 av_dict_set(&c->fc->metadata, key, str, 0);
398 if (*language && strcmp(language, "und")) {
399 snprintf(key2, sizeof(key2), "%s-%s", key, language);
400 av_dict_set(&c->fc->metadata, key2, str, 0);
403 av_dlog(c->fc, "lang \"%3s\" ", language);
404 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
405 key, str, (char*)&atom.type, str_size_alloc, atom.size);
411 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
414 int i, nb_chapters, str_len, version;
417 if ((atom.size -= 5) < 0)
420 version = avio_r8(pb);
423 avio_rb32(pb); // ???
424 nb_chapters = avio_r8(pb);
426 for (i = 0; i < nb_chapters; i++) {
430 start = avio_rb64(pb);
431 str_len = avio_r8(pb);
433 if ((atom.size -= 9+str_len) < 0)
436 avio_read(pb, str, str_len);
438 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
443 #define MIN_DATA_ENTRY_BOX_SIZE 12
444 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
447 MOVStreamContext *sc;
450 if (c->fc->nb_streams < 1)
452 st = c->fc->streams[c->fc->nb_streams-1];
455 avio_rb32(pb); // version + flags
456 entries = avio_rb32(pb);
457 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
458 entries >= UINT_MAX / sizeof(*sc->drefs))
459 return AVERROR_INVALIDDATA;
462 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
464 return AVERROR(ENOMEM);
465 sc->drefs_count = entries;
467 for (i = 0; i < sc->drefs_count; i++) {
468 MOVDref *dref = &sc->drefs[i];
469 uint32_t size = avio_rb32(pb);
470 int64_t next = avio_tell(pb) + size - 4;
473 return AVERROR_INVALIDDATA;
475 dref->type = avio_rl32(pb);
476 avio_rb32(pb); // version + flags
477 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
479 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
480 /* macintosh alias record */
481 uint16_t volume_len, len;
486 volume_len = avio_r8(pb);
487 volume_len = FFMIN(volume_len, 27);
488 avio_read(pb, dref->volume, 27);
489 dref->volume[volume_len] = 0;
490 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
495 len = FFMIN(len, 63);
496 avio_read(pb, dref->filename, 63);
497 dref->filename[len] = 0;
498 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
502 /* read next level up_from_alias/down_to_target */
503 dref->nlvl_from = avio_rb16(pb);
504 dref->nlvl_to = avio_rb16(pb);
505 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
506 dref->nlvl_from, dref->nlvl_to);
510 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
513 type = avio_rb16(pb);
515 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
518 if (type == 2) { // absolute path
520 dref->path = av_mallocz(len+1);
522 return AVERROR(ENOMEM);
523 avio_read(pb, dref->path, len);
524 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
526 memmove(dref->path, dref->path+volume_len, len);
529 for (j = 0; j < len; j++)
530 if (dref->path[j] == ':')
532 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
533 } else if (type == 0) { // directory name
535 dref->dir = av_malloc(len+1);
537 return AVERROR(ENOMEM);
538 if (avio_read(pb, dref->dir, len) != len)
539 return AVERROR_INVALIDDATA;
541 for (j = 0; j < len; j++)
542 if (dref->dir[j] == ':')
544 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
549 avio_seek(pb, next, SEEK_SET);
554 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
558 uint32_t av_unused ctype;
562 if (c->fc->nb_streams < 1) // meta before first trak
565 st = c->fc->streams[c->fc->nb_streams-1];
567 avio_r8(pb); /* version */
568 avio_rb24(pb); /* flags */
571 ctype = avio_rl32(pb);
572 type = avio_rl32(pb); /* component subtype */
574 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
575 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
577 if (type == MKTAG('v','i','d','e'))
578 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
579 else if (type == MKTAG('s','o','u','n'))
580 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
581 else if (type == MKTAG('m','1','a',' '))
582 st->codec->codec_id = AV_CODEC_ID_MP2;
583 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
584 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
586 avio_rb32(pb); /* component manufacture */
587 avio_rb32(pb); /* component flags */
588 avio_rb32(pb); /* component flags mask */
590 title_size = atom.size - 24;
591 if (title_size > 0) {
592 title_str = av_malloc(title_size + 1); /* Add null terminator */
594 return AVERROR(ENOMEM);
595 avio_read(pb, title_str, title_size);
596 title_str[title_size] = 0;
598 int off = (!c->isom && title_str[0] == title_size - 1);
599 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
601 av_freep(&title_str);
607 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
612 if (fc->nb_streams < 1)
614 st = fc->streams[fc->nb_streams-1];
616 avio_rb32(pb); /* version + flags */
617 ff_mp4_read_descr(fc, pb, &tag);
618 if (tag == MP4ESDescrTag) {
619 ff_mp4_parse_es_descr(pb, NULL);
621 avio_rb16(pb); /* ID */
623 ff_mp4_read_descr(fc, pb, &tag);
624 if (tag == MP4DecConfigDescrTag)
625 ff_mp4_read_dec_config_descr(fc, st, pb);
629 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
631 return ff_mov_read_esds(c->fc, pb);
634 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
637 enum AVAudioServiceType *ast;
638 int ac3info, acmod, lfeon, bsmod;
640 if (c->fc->nb_streams < 1)
642 st = c->fc->streams[c->fc->nb_streams-1];
644 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
647 return AVERROR(ENOMEM);
649 ac3info = avio_rb24(pb);
650 bsmod = (ac3info >> 14) & 0x7;
651 acmod = (ac3info >> 11) & 0x7;
652 lfeon = (ac3info >> 10) & 0x1;
653 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
654 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
656 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
658 if (st->codec->channels > 1 && bsmod == 0x7)
659 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
661 st->codec->audio_service_type = *ast;
666 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
669 enum AVAudioServiceType *ast;
670 int eac3info, acmod, lfeon, bsmod;
672 if (c->fc->nb_streams < 1)
674 st = c->fc->streams[c->fc->nb_streams-1];
676 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
679 return AVERROR(ENOMEM);
681 /* No need to parse fields for additional independent substreams and its
682 * associated dependent substreams since libavcodec's E-AC-3 decoder
683 * does not support them yet. */
684 avio_rb16(pb); /* data_rate and num_ind_sub */
685 eac3info = avio_rb24(pb);
686 bsmod = (eac3info >> 12) & 0x1f;
687 acmod = (eac3info >> 9) & 0x7;
688 lfeon = (eac3info >> 8) & 0x1;
689 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
691 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
692 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
694 if (st->codec->channels > 1 && bsmod == 0x7)
695 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
697 st->codec->audio_service_type = *ast;
702 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
706 if (c->fc->nb_streams < 1)
708 st = c->fc->streams[c->fc->nb_streams-1];
713 /* skip version and flags */
716 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
721 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
726 if (c->fc->nb_streams < 1)
728 st = c->fc->streams[c->fc->nb_streams-1];
730 if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
731 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
736 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
738 const int num = avio_rb32(pb);
739 const int den = avio_rb32(pb);
742 if (c->fc->nb_streams < 1)
744 st = c->fc->streams[c->fc->nb_streams-1];
746 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
747 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
748 av_log(c->fc, AV_LOG_WARNING,
749 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
750 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
752 } else if (den != 0) {
753 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
759 /* this atom contains actual media data */
760 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
762 if (atom.size == 0) /* wrong one (MP4) */
765 return 0; /* now go for moov */
768 /* read major brand, minor version and compatible brands and store them as metadata */
769 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
773 char* comp_brands_str;
774 uint8_t type[5] = {0};
776 avio_read(pb, type, 4);
777 if (strcmp(type, "qt "))
779 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
780 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
781 minor_ver = avio_rb32(pb); /* minor version */
782 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
784 comp_brand_size = atom.size - 8;
785 if (comp_brand_size < 0)
786 return AVERROR_INVALIDDATA;
787 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
788 if (!comp_brands_str)
789 return AVERROR(ENOMEM);
790 avio_read(pb, comp_brands_str, comp_brand_size);
791 comp_brands_str[comp_brand_size] = 0;
792 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
793 av_freep(&comp_brands_str);
798 /* this atom should contain all header atoms */
799 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
804 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
805 avio_skip(pb, atom.size);
809 if ((ret = mov_read_default(c, pb, atom)) < 0)
811 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
812 /* so we don't parse the whole file if over a network */
814 return 0; /* now go for mdat */
817 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
819 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
820 c->has_looked_for_mfra = 1;
823 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
825 if ((ret = mov_read_mfra(c, pb)) < 0) {
826 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
827 "read the mfra (may be a live ismv)\n");
830 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
831 "seekable, can not look for mfra\n");
834 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
835 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
836 return mov_read_default(c, pb, atom);
839 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
843 struct tm *ptm, tmbuf;
845 if(time >= 2082844800)
846 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
848 ptm = gmtime_r(&timet, &tmbuf);
850 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
851 av_dict_set(metadata, "creation_time", buffer, 0);
855 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
858 MOVStreamContext *sc;
860 char language[4] = {0};
862 int64_t creation_time;
864 if (c->fc->nb_streams < 1)
866 st = c->fc->streams[c->fc->nb_streams-1];
869 if (sc->time_scale) {
870 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
871 return AVERROR_INVALIDDATA;
874 version = avio_r8(pb);
876 avpriv_request_sample(c->fc, "Version %d", version);
877 return AVERROR_PATCHWELCOME;
879 avio_rb24(pb); /* flags */
881 creation_time = avio_rb64(pb);
884 creation_time = avio_rb32(pb);
885 avio_rb32(pb); /* modification time */
887 mov_metadata_creation_time(&st->metadata, creation_time);
889 sc->time_scale = avio_rb32(pb);
890 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
892 lang = avio_rb16(pb); /* language */
893 if (ff_mov_lang_to_iso639(lang, language))
894 av_dict_set(&st->metadata, "language", language, 0);
895 avio_rb16(pb); /* quality */
900 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
902 int64_t creation_time;
903 int version = avio_r8(pb); /* version */
904 avio_rb24(pb); /* flags */
907 creation_time = avio_rb64(pb);
910 creation_time = avio_rb32(pb);
911 avio_rb32(pb); /* modification time */
913 mov_metadata_creation_time(&c->fc->metadata, creation_time);
914 c->time_scale = avio_rb32(pb); /* time scale */
916 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
918 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
919 // set the AVCodecContext duration because the duration of individual tracks
921 if (c->time_scale > 0 && !c->trex_data)
922 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
923 avio_rb32(pb); /* preferred scale */
925 avio_rb16(pb); /* preferred volume */
927 avio_skip(pb, 10); /* reserved */
929 avio_skip(pb, 36); /* display matrix */
931 avio_rb32(pb); /* preview time */
932 avio_rb32(pb); /* preview duration */
933 avio_rb32(pb); /* poster time */
934 avio_rb32(pb); /* selection time */
935 avio_rb32(pb); /* selection duration */
936 avio_rb32(pb); /* current time */
937 avio_rb32(pb); /* next track ID */
941 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
946 if (c->fc->nb_streams < 1)
948 st = c->fc->streams[c->fc->nb_streams-1];
950 little_endian = avio_rb16(pb) & 0xFF;
951 av_dlog(c->fc, "enda %d\n", little_endian);
952 if (little_endian == 1) {
953 switch (st->codec->codec_id) {
954 case AV_CODEC_ID_PCM_S24BE:
955 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
957 case AV_CODEC_ID_PCM_S32BE:
958 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
960 case AV_CODEC_ID_PCM_F32BE:
961 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
963 case AV_CODEC_ID_PCM_F64BE:
964 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
973 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
976 char color_parameter_type[5] = { 0 };
977 int color_primaries, color_trc, color_matrix;
979 if (c->fc->nb_streams < 1)
981 st = c->fc->streams[c->fc->nb_streams - 1];
983 avio_read(pb, color_parameter_type, 4);
984 if (strncmp(color_parameter_type, "nclx", 4) &&
985 strncmp(color_parameter_type, "nclc", 4)) {
986 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
987 color_parameter_type);
991 color_primaries = avio_rb16(pb);
992 color_trc = avio_rb16(pb);
993 color_matrix = avio_rb16(pb);
995 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
996 color_parameter_type, color_primaries, color_trc, color_matrix);
999 uint8_t color_range = avio_r8(pb) >> 7;
1000 av_dlog(c->fc, " full %"PRIu8"", color_range);
1002 st->codec->color_range = AVCOL_RANGE_JPEG;
1004 st->codec->color_range = AVCOL_RANGE_MPEG;
1005 /* 14496-12 references JPEG XR specs (rather than the more complete
1006 * 23001-8) so some adjusting is required */
1007 if (color_primaries >= AVCOL_PRI_FILM)
1008 color_primaries = AVCOL_PRI_UNSPECIFIED;
1009 if ((color_trc >= AVCOL_TRC_LINEAR &&
1010 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1011 color_trc >= AVCOL_TRC_BT2020_10)
1012 color_trc = AVCOL_TRC_UNSPECIFIED;
1013 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1014 color_matrix = AVCOL_SPC_UNSPECIFIED;
1015 st->codec->color_primaries = color_primaries;
1016 st->codec->color_trc = color_trc;
1017 st->codec->colorspace = color_matrix;
1019 /* color primaries, Table 4-4 */
1020 switch (color_primaries) {
1021 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1022 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1023 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1025 /* color transfer, Table 4-5 */
1026 switch (color_trc) {
1027 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1028 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1030 /* color matrix, Table 4-6 */
1031 switch (color_matrix) {
1032 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1033 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1034 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1037 av_dlog(c->fc, "\n");
1042 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1045 unsigned mov_field_order;
1046 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1048 if (c->fc->nb_streams < 1) // will happen with jp2 files
1050 st = c->fc->streams[c->fc->nb_streams-1];
1052 return AVERROR_INVALIDDATA;
1053 mov_field_order = avio_rb16(pb);
1054 if ((mov_field_order & 0xFF00) == 0x0100)
1055 decoded_field_order = AV_FIELD_PROGRESSIVE;
1056 else if ((mov_field_order & 0xFF00) == 0x0200) {
1057 switch (mov_field_order & 0xFF) {
1058 case 0x01: decoded_field_order = AV_FIELD_TT;
1060 case 0x06: decoded_field_order = AV_FIELD_BB;
1062 case 0x09: decoded_field_order = AV_FIELD_TB;
1064 case 0x0E: decoded_field_order = AV_FIELD_BT;
1068 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1069 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1071 st->codec->field_order = decoded_field_order;
1076 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1077 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1078 enum AVCodecID codec_id)
1085 if (c->fc->nb_streams < 1) // will happen with jp2 files
1087 st= c->fc->streams[c->fc->nb_streams-1];
1089 if (st->codec->codec_id != codec_id)
1090 return 0; /* unexpected codec_id - don't mess with extradata */
1092 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1093 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1094 return AVERROR_INVALIDDATA;
1095 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1096 st->codec->extradata_size = 0;
1099 buf = st->codec->extradata + st->codec->extradata_size;
1100 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1101 AV_WB32( buf , atom.size + 8);
1102 AV_WL32( buf + 4, atom.type);
1103 err = avio_read(pb, buf + 8, atom.size);
1106 } else if (err < atom.size) {
1107 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1108 st->codec->extradata_size -= atom.size - err;
1110 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1114 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1115 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1117 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1120 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1122 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1125 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1127 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1130 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1132 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1135 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1137 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1139 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1143 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1145 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1147 if (!ret && c->fc->nb_streams >= 1) {
1148 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1149 if (avctx->extradata_size >= 40) {
1150 avctx->height = AV_RB16(&avctx->extradata[36]);
1151 avctx->width = AV_RB16(&avctx->extradata[38]);
1157 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1159 if (c->fc->nb_streams >= 1) {
1160 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1161 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1162 codec->codec_id == AV_CODEC_ID_H264 &&
1165 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1166 if (avio_rb16(pb) == 0xd4d)
1167 codec->width = 1440;
1172 return mov_read_avid(c, pb, atom);
1175 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1177 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1180 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1184 if (c->fc->nb_streams < 1)
1186 st = c->fc->streams[c->fc->nb_streams-1];
1188 if ((uint64_t)atom.size > (1<<30))
1189 return AVERROR_INVALIDDATA;
1191 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1192 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1193 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1194 // pass all frma atom to codec, needed at least for QDMC and QDM2
1195 av_freep(&st->codec->extradata);
1196 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1197 return AVERROR(ENOMEM);
1198 } else if (atom.size > 8) { /* to read frma, esds atoms */
1200 if ((ret = mov_read_default(c, pb, atom)) < 0)
1203 avio_skip(pb, atom.size);
1208 * This function reads atom content and puts data in extradata without tag
1209 * nor size unlike mov_read_extradata.
1211 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1215 if (c->fc->nb_streams < 1)
1217 st = c->fc->streams[c->fc->nb_streams-1];
1219 if ((uint64_t)atom.size > (1<<30))
1220 return AVERROR_INVALIDDATA;
1222 if (atom.size >= 10) {
1223 // Broken files created by legacy versions of libavformat will
1224 // wrap a whole fiel atom inside of a glbl atom.
1225 unsigned size = avio_rb32(pb);
1226 unsigned type = avio_rl32(pb);
1227 avio_seek(pb, -8, SEEK_CUR);
1228 if (type == MKTAG('f','i','e','l') && size == atom.size)
1229 return mov_read_default(c, pb, atom);
1231 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1232 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1235 av_freep(&st->codec->extradata);
1236 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1237 return AVERROR(ENOMEM);
1242 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1245 uint8_t profile_level;
1248 if (c->fc->nb_streams < 1)
1250 st = c->fc->streams[c->fc->nb_streams-1];
1252 if (atom.size >= (1<<28) || atom.size < 7)
1253 return AVERROR_INVALIDDATA;
1255 profile_level = avio_r8(pb);
1256 if ((profile_level & 0xf0) != 0xc0)
1259 avio_seek(pb, 6, SEEK_CUR);
1260 av_freep(&st->codec->extradata);
1261 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1268 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1269 * but can have extradata appended at the end after the 40 bytes belonging
1272 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1276 if (c->fc->nb_streams < 1)
1278 if (atom.size <= 40)
1280 st = c->fc->streams[c->fc->nb_streams-1];
1282 if ((uint64_t)atom.size > (1<<30))
1283 return AVERROR_INVALIDDATA;
1286 av_freep(&st->codec->extradata);
1287 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1288 return AVERROR(ENOMEM);
1292 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1295 MOVStreamContext *sc;
1296 unsigned int i, entries;
1298 if (c->fc->nb_streams < 1)
1300 st = c->fc->streams[c->fc->nb_streams-1];
1303 avio_r8(pb); /* version */
1304 avio_rb24(pb); /* flags */
1306 entries = avio_rb32(pb);
1311 if (sc->chunk_offsets)
1312 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1313 av_free(sc->chunk_offsets);
1314 sc->chunk_count = 0;
1315 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1316 if (!sc->chunk_offsets)
1317 return AVERROR(ENOMEM);
1318 sc->chunk_count = entries;
1320 if (atom.type == MKTAG('s','t','c','o'))
1321 for (i = 0; i < entries && !pb->eof_reached; i++)
1322 sc->chunk_offsets[i] = avio_rb32(pb);
1323 else if (atom.type == MKTAG('c','o','6','4'))
1324 for (i = 0; i < entries && !pb->eof_reached; i++)
1325 sc->chunk_offsets[i] = avio_rb64(pb);
1327 return AVERROR_INVALIDDATA;
1329 sc->chunk_count = i;
1331 if (pb->eof_reached)
1338 * Compute codec id for 'lpcm' tag.
1339 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1341 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1348 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1351 static int mov_codec_id(AVStream *st, uint32_t format)
1353 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1356 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1357 (format & 0xFFFF) == 'T' + ('S' << 8)))
1358 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1360 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1361 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1362 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1363 /* skip old asf mpeg4 tag */
1364 format && format != MKTAG('m','p','4','s')) {
1365 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1367 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1369 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1370 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1371 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1372 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1373 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1375 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1379 st->codec->codec_tag = format;
1384 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1385 AVStream *st, MOVStreamContext *sc)
1387 uint8_t codec_name[32];
1388 unsigned int color_depth, len, j;
1389 int color_greyscale;
1392 avio_rb16(pb); /* version */
1393 avio_rb16(pb); /* revision level */
1394 avio_rb32(pb); /* vendor */
1395 avio_rb32(pb); /* temporal quality */
1396 avio_rb32(pb); /* spatial quality */
1398 st->codec->width = avio_rb16(pb); /* width */
1399 st->codec->height = avio_rb16(pb); /* height */
1401 avio_rb32(pb); /* horiz resolution */
1402 avio_rb32(pb); /* vert resolution */
1403 avio_rb32(pb); /* data size, always 0 */
1404 avio_rb16(pb); /* frames per samples */
1406 len = avio_r8(pb); /* codec name, pascal string */
1409 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1411 avio_skip(pb, 31 - len);
1414 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1416 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1417 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1418 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1419 st->codec->width &= ~1;
1420 st->codec->height &= ~1;
1422 /* Flash Media Server uses tag H263 with Sorenson Spark */
1423 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1424 !memcmp(codec_name, "Sorenson H263", 13))
1425 st->codec->codec_id = AV_CODEC_ID_FLV1;
1427 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1428 color_table_id = avio_rb16(pb); /* colortable id */
1429 av_dlog(c->fc, "depth %d, ctab id %d\n",
1430 st->codec->bits_per_coded_sample, color_table_id);
1431 /* figure out the palette situation */
1432 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1433 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1434 /* Do not create a greyscale palette for cinepak */
1435 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1438 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1439 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1440 /* for palette traversal */
1441 unsigned int color_start, color_count, color_end;
1442 unsigned char a, r, g, b;
1444 if (color_greyscale) {
1445 int color_index, color_dec;
1446 /* compute the greyscale palette */
1447 st->codec->bits_per_coded_sample = color_depth;
1448 color_count = 1 << color_depth;
1450 color_dec = 256 / (color_count - 1);
1451 for (j = 0; j < color_count; j++) {
1452 r = g = b = color_index;
1453 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1454 color_index -= color_dec;
1455 if (color_index < 0)
1458 } else if (color_table_id) {
1459 const uint8_t *color_table;
1460 /* if flag bit 3 is set, use the default palette */
1461 color_count = 1 << color_depth;
1462 if (color_depth == 2)
1463 color_table = ff_qt_default_palette_4;
1464 else if (color_depth == 4)
1465 color_table = ff_qt_default_palette_16;
1467 color_table = ff_qt_default_palette_256;
1469 for (j = 0; j < color_count; j++) {
1470 r = color_table[j * 3 + 0];
1471 g = color_table[j * 3 + 1];
1472 b = color_table[j * 3 + 2];
1473 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1476 /* load the palette from the file */
1477 color_start = avio_rb32(pb);
1478 color_count = avio_rb16(pb);
1479 color_end = avio_rb16(pb);
1480 if ((color_start <= 255) && (color_end <= 255)) {
1481 for (j = color_start; j <= color_end; j++) {
1482 /* each A, R, G, or B component is 16 bits;
1483 * only use the top 8 bits */
1492 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1496 sc->has_palette = 1;
1500 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1501 AVStream *st, MOVStreamContext *sc)
1503 int bits_per_sample, flags;
1504 uint16_t version = avio_rb16(pb);
1505 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1507 avio_rb16(pb); /* revision level */
1508 avio_rb32(pb); /* vendor */
1510 st->codec->channels = avio_rb16(pb); /* channel count */
1511 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1512 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1514 sc->audio_cid = avio_rb16(pb);
1515 avio_rb16(pb); /* packet size = 0 */
1517 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1519 // Read QT version 1 fields. In version 0 these do not exist.
1520 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1522 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1525 sc->samples_per_frame = avio_rb32(pb);
1526 avio_rb32(pb); /* bytes per packet */
1527 sc->bytes_per_frame = avio_rb32(pb);
1528 avio_rb32(pb); /* bytes per sample */
1529 } else if (version == 2) {
1530 avio_rb32(pb); /* sizeof struct only */
1531 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1532 st->codec->channels = avio_rb32(pb);
1533 avio_rb32(pb); /* always 0x7F000000 */
1534 st->codec->bits_per_coded_sample = avio_rb32(pb);
1536 flags = avio_rb32(pb); /* lpcm format specific flag */
1537 sc->bytes_per_frame = avio_rb32(pb);
1538 sc->samples_per_frame = avio_rb32(pb);
1539 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1540 st->codec->codec_id =
1541 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1546 switch (st->codec->codec_id) {
1547 case AV_CODEC_ID_PCM_S8:
1548 case AV_CODEC_ID_PCM_U8:
1549 if (st->codec->bits_per_coded_sample == 16)
1550 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1552 case AV_CODEC_ID_PCM_S16LE:
1553 case AV_CODEC_ID_PCM_S16BE:
1554 if (st->codec->bits_per_coded_sample == 8)
1555 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1556 else if (st->codec->bits_per_coded_sample == 24)
1557 st->codec->codec_id =
1558 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1559 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1560 else if (st->codec->bits_per_coded_sample == 32)
1561 st->codec->codec_id =
1562 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1563 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1565 /* set values for old format before stsd version 1 appeared */
1566 case AV_CODEC_ID_MACE3:
1567 sc->samples_per_frame = 6;
1568 sc->bytes_per_frame = 2 * st->codec->channels;
1570 case AV_CODEC_ID_MACE6:
1571 sc->samples_per_frame = 6;
1572 sc->bytes_per_frame = 1 * st->codec->channels;
1574 case AV_CODEC_ID_ADPCM_IMA_QT:
1575 sc->samples_per_frame = 64;
1576 sc->bytes_per_frame = 34 * st->codec->channels;
1578 case AV_CODEC_ID_GSM:
1579 sc->samples_per_frame = 160;
1580 sc->bytes_per_frame = 33;
1586 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1587 if (bits_per_sample) {
1588 st->codec->bits_per_coded_sample = bits_per_sample;
1589 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1593 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1594 AVStream *st, MOVStreamContext *sc,
1597 // ttxt stsd contains display flags, justification, background
1598 // color, fonts, and default styles, so fake an atom to read it
1599 MOVAtom fake_atom = { .size = size };
1600 // mp4s contains a regular esds atom
1601 if (st->codec->codec_tag != AV_RL32("mp4s"))
1602 mov_read_glbl(c, pb, fake_atom);
1603 st->codec->width = sc->width;
1604 st->codec->height = sc->height;
1607 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1612 y = (ycbcr >> 16) & 0xFF;
1613 cr = (ycbcr >> 8) & 0xFF;
1616 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1617 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1618 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1620 return (r << 16) | (g << 8) | b;
1623 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1625 char buf[256] = {0};
1626 uint8_t *src = st->codec->extradata;
1629 if (st->codec->extradata_size != 64)
1632 if (st->codec->width > 0 && st->codec->height > 0)
1633 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1634 st->codec->width, st->codec->height);
1635 av_strlcat(buf, "palette: ", sizeof(buf));
1637 for (i = 0; i < 16; i++) {
1638 uint32_t yuv = AV_RB32(src + i * 4);
1639 uint32_t rgba = yuv_to_rgba(yuv);
1641 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1644 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1647 av_freep(&st->codec->extradata);
1648 st->codec->extradata_size = 0;
1649 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1650 if (!st->codec->extradata)
1651 return AVERROR(ENOMEM);
1652 st->codec->extradata_size = strlen(buf);
1653 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1658 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1659 AVStream *st, MOVStreamContext *sc,
1662 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1663 if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
1664 return AVERROR(ENOMEM);
1666 MOVStreamContext *tmcd_ctx = st->priv_data;
1668 val = AV_RB32(st->codec->extradata + 4);
1669 tmcd_ctx->tmcd_flags = val;
1671 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1672 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1673 st->codec->time_base.num = 1;
1674 /* adjust for per frame dur in counter mode */
1675 if (tmcd_ctx->tmcd_flags & 0x0008) {
1676 int timescale = AV_RB32(st->codec->extradata + 8);
1677 int framedur = AV_RB32(st->codec->extradata + 12);
1678 st->codec->time_base.den *= timescale;
1679 st->codec->time_base.num *= framedur;
1682 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1683 uint32_t format = AV_RB32(st->codec->extradata + 22);
1684 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1685 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1686 if (str_size > 0 && size >= (int)str_size + 26) {
1687 char *reel_name = av_malloc(str_size + 1);
1689 return AVERROR(ENOMEM);
1690 memcpy(reel_name, st->codec->extradata + 30, str_size);
1691 reel_name[str_size] = 0; /* Add null terminator */
1692 /* don't add reel_name if emtpy string */
1693 if (*reel_name == 0) {
1696 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1703 /* other codec type, just skip (rtp, mp4s ...) */
1704 avio_skip(pb, size);
1709 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1710 AVStream *st, MOVStreamContext *sc)
1712 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1713 !st->codec->sample_rate && sc->time_scale > 1)
1714 st->codec->sample_rate = sc->time_scale;
1716 /* special codec parameters handling */
1717 switch (st->codec->codec_id) {
1718 #if CONFIG_DV_DEMUXER
1719 case AV_CODEC_ID_DVAUDIO:
1720 c->dv_fctx = avformat_alloc_context();
1721 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1723 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1724 return AVERROR(ENOMEM);
1726 sc->dv_audio_container = 1;
1727 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1730 /* no ifdef since parameters are always those */
1731 case AV_CODEC_ID_QCELP:
1732 st->codec->channels = 1;
1733 // force sample rate for qcelp when not stored in mov
1734 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1735 st->codec->sample_rate = 8000;
1736 // FIXME: Why is the following needed for some files?
1737 sc->samples_per_frame = 160;
1738 if (!sc->bytes_per_frame)
1739 sc->bytes_per_frame = 35;
1741 case AV_CODEC_ID_AMR_NB:
1742 st->codec->channels = 1;
1743 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1744 st->codec->sample_rate = 8000;
1746 case AV_CODEC_ID_AMR_WB:
1747 st->codec->channels = 1;
1748 st->codec->sample_rate = 16000;
1750 case AV_CODEC_ID_MP2:
1751 case AV_CODEC_ID_MP3:
1752 /* force type after stsd for m1a hdlr */
1753 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1754 st->need_parsing = AVSTREAM_PARSE_FULL;
1756 case AV_CODEC_ID_GSM:
1757 case AV_CODEC_ID_ADPCM_MS:
1758 case AV_CODEC_ID_ADPCM_IMA_WAV:
1759 case AV_CODEC_ID_ILBC:
1760 case AV_CODEC_ID_MACE3:
1761 case AV_CODEC_ID_MACE6:
1762 case AV_CODEC_ID_QDM2:
1763 st->codec->block_align = sc->bytes_per_frame;
1765 case AV_CODEC_ID_ALAC:
1766 if (st->codec->extradata_size == 36) {
1767 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1768 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1771 case AV_CODEC_ID_AC3:
1772 case AV_CODEC_ID_EAC3:
1773 case AV_CODEC_ID_MPEG1VIDEO:
1774 case AV_CODEC_ID_VC1:
1775 st->need_parsing = AVSTREAM_PARSE_FULL;
1783 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1784 int codec_tag, int format,
1787 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1790 (codec_tag != format &&
1791 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1792 : codec_tag != MKTAG('j','p','e','g')))) {
1793 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1794 * export it as a separate AVStream but this needs a few changes
1795 * in the MOV demuxer, patch welcome. */
1797 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1798 avio_skip(pb, size);
1801 if ( codec_tag == AV_RL32("avc1") ||
1802 codec_tag == AV_RL32("hvc1") ||
1803 codec_tag == AV_RL32("hev1")
1805 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1810 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1813 MOVStreamContext *sc;
1814 int pseudo_stream_id;
1816 if (c->fc->nb_streams < 1)
1818 st = c->fc->streams[c->fc->nb_streams-1];
1821 for (pseudo_stream_id = 0;
1822 pseudo_stream_id < entries && !pb->eof_reached;
1823 pseudo_stream_id++) {
1824 //Parsing Sample description table
1826 int ret, dref_id = 1;
1827 MOVAtom a = { AV_RL32("stsd") };
1828 int64_t start_pos = avio_tell(pb);
1829 int64_t size = avio_rb32(pb); /* size */
1830 uint32_t format = avio_rl32(pb); /* data format */
1833 avio_rb32(pb); /* reserved */
1834 avio_rb16(pb); /* reserved */
1835 dref_id = avio_rb16(pb);
1836 }else if (size <= 7){
1837 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1838 return AVERROR_INVALIDDATA;
1841 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1842 size - (avio_tell(pb) - start_pos)))
1845 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1846 sc->dref_id= dref_id;
1848 id = mov_codec_id(st, format);
1850 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1851 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1852 (format >> 24) & 0xff, st->codec->codec_type);
1854 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1855 st->codec->codec_id = id;
1856 mov_parse_stsd_video(c, pb, st, sc);
1857 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1858 st->codec->codec_id = id;
1859 mov_parse_stsd_audio(c, pb, st, sc);
1860 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1861 st->codec->codec_id = id;
1862 mov_parse_stsd_subtitle(c, pb, st, sc,
1863 size - (avio_tell(pb) - start_pos));
1865 ret = mov_parse_stsd_data(c, pb, st, sc,
1866 size - (avio_tell(pb) - start_pos));
1870 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1871 a.size = size - (avio_tell(pb) - start_pos);
1873 if ((ret = mov_read_default(c, pb, a)) < 0)
1875 } else if (a.size > 0)
1876 avio_skip(pb, a.size);
1879 if (pb->eof_reached)
1882 return mov_finalize_stsd_codec(c, pb, st, sc);
1885 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1889 avio_r8(pb); /* version */
1890 avio_rb24(pb); /* flags */
1891 entries = avio_rb32(pb);
1893 return ff_mov_read_stsd_entries(c, pb, entries);
1896 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1899 MOVStreamContext *sc;
1900 unsigned int i, entries;
1902 if (c->fc->nb_streams < 1)
1904 st = c->fc->streams[c->fc->nb_streams-1];
1907 avio_r8(pb); /* version */
1908 avio_rb24(pb); /* flags */
1910 entries = avio_rb32(pb);
1912 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1917 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
1918 av_free(sc->stsc_data);
1920 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
1922 return AVERROR(ENOMEM);
1924 for (i = 0; i < entries && !pb->eof_reached; i++) {
1925 sc->stsc_data[i].first = avio_rb32(pb);
1926 sc->stsc_data[i].count = avio_rb32(pb);
1927 sc->stsc_data[i].id = avio_rb32(pb);
1932 if (pb->eof_reached)
1938 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1941 MOVStreamContext *sc;
1942 unsigned i, entries;
1944 if (c->fc->nb_streams < 1)
1946 st = c->fc->streams[c->fc->nb_streams-1];
1949 avio_rb32(pb); // version + flags
1951 entries = avio_rb32(pb);
1953 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
1954 av_free(sc->stps_data);
1956 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
1958 return AVERROR(ENOMEM);
1960 for (i = 0; i < entries && !pb->eof_reached; i++) {
1961 sc->stps_data[i] = avio_rb32(pb);
1962 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1967 if (pb->eof_reached)
1973 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1976 MOVStreamContext *sc;
1977 unsigned int i, entries;
1979 if (c->fc->nb_streams < 1)
1981 st = c->fc->streams[c->fc->nb_streams-1];
1984 avio_r8(pb); /* version */
1985 avio_rb24(pb); /* flags */
1987 entries = avio_rb32(pb);
1989 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1993 sc->keyframe_absent = 1;
1994 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1995 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1999 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2000 if (entries >= UINT_MAX / sizeof(int))
2001 return AVERROR_INVALIDDATA;
2002 av_freep(&sc->keyframes);
2003 sc->keyframe_count = 0;
2004 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2006 return AVERROR(ENOMEM);
2008 for (i = 0; i < entries && !pb->eof_reached; i++) {
2009 sc->keyframes[i] = avio_rb32(pb);
2010 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
2013 sc->keyframe_count = i;
2015 if (pb->eof_reached)
2021 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2024 MOVStreamContext *sc;
2025 unsigned int i, entries, sample_size, field_size, num_bytes;
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 */
2037 if (atom.type == MKTAG('s','t','s','z')) {
2038 sample_size = avio_rb32(pb);
2039 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2040 sc->sample_size = sample_size;
2041 sc->stsz_sample_size = sample_size;
2045 avio_rb24(pb); /* reserved */
2046 field_size = avio_r8(pb);
2048 entries = avio_rb32(pb);
2050 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2052 sc->sample_count = entries;
2056 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2057 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2058 return AVERROR_INVALIDDATA;
2063 if (entries >= (UINT_MAX - 4) / field_size)
2064 return AVERROR_INVALIDDATA;
2065 if (sc->sample_sizes)
2066 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2067 av_free(sc->sample_sizes);
2068 sc->sample_count = 0;
2069 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2070 if (!sc->sample_sizes)
2071 return AVERROR(ENOMEM);
2073 num_bytes = (entries*field_size+4)>>3;
2075 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2077 av_freep(&sc->sample_sizes);
2078 return AVERROR(ENOMEM);
2081 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2082 av_freep(&sc->sample_sizes);
2084 return AVERROR_INVALIDDATA;
2087 init_get_bits(&gb, buf, 8*num_bytes);
2089 for (i = 0; i < entries && !pb->eof_reached; i++) {
2090 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2091 sc->data_size += sc->sample_sizes[i];
2094 sc->sample_count = i;
2096 if (pb->eof_reached)
2103 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2106 MOVStreamContext *sc;
2107 unsigned int i, entries;
2109 int64_t total_sample_count=0;
2111 if (c->fc->nb_streams < 1)
2113 st = c->fc->streams[c->fc->nb_streams-1];
2116 avio_r8(pb); /* version */
2117 avio_rb24(pb); /* flags */
2118 entries = avio_rb32(pb);
2120 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2121 c->fc->nb_streams-1, entries);
2124 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2125 av_free(sc->stts_data);
2127 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2129 return AVERROR(ENOMEM);
2131 for (i = 0; i < entries && !pb->eof_reached; i++) {
2132 int sample_duration;
2135 sample_count=avio_rb32(pb);
2136 sample_duration = avio_rb32(pb);
2138 /* sample_duration < 0 is invalid based on the spec */
2139 if (sample_duration < 0) {
2140 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2141 sample_duration, i, c->fc->nb_streams-1);
2142 sample_duration = 1;
2144 if (sample_count < 0) {
2145 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2146 return AVERROR_INVALIDDATA;
2148 sc->stts_data[i].count= sample_count;
2149 sc->stts_data[i].duration= sample_duration;
2151 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2152 sample_count, sample_duration);
2156 && sample_count == 1
2157 && total_sample_count > 100
2158 && sample_duration/10 > duration / total_sample_count)
2159 sample_duration = duration / total_sample_count;
2160 duration+=(int64_t)sample_duration*sample_count;
2161 total_sample_count+=sample_count;
2166 sc->duration_for_fps += duration;
2167 sc->nb_frames_for_fps += total_sample_count;
2169 if (pb->eof_reached)
2172 st->nb_frames= total_sample_count;
2174 st->duration= duration;
2175 sc->track_end = duration;
2179 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2182 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2186 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2189 MOVStreamContext *sc;
2190 unsigned int i, entries;
2192 if (c->fc->nb_streams < 1)
2194 st = c->fc->streams[c->fc->nb_streams-1];
2197 avio_r8(pb); /* version */
2198 avio_rb24(pb); /* flags */
2199 entries = avio_rb32(pb);
2201 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2205 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2206 return AVERROR_INVALIDDATA;
2207 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2209 return AVERROR(ENOMEM);
2211 for (i = 0; i < entries && !pb->eof_reached; i++) {
2212 int count =avio_rb32(pb);
2213 int duration =avio_rb32(pb);
2215 sc->ctts_data[i].count = count;
2216 sc->ctts_data[i].duration= duration;
2218 av_dlog(c->fc, "count=%d, duration=%d\n",
2221 if (FFABS(duration) > (1<<28) && i+2<entries) {
2222 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2223 av_freep(&sc->ctts_data);
2229 mov_update_dts_shift(sc, duration);
2234 if (pb->eof_reached)
2237 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2242 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2245 MOVStreamContext *sc;
2246 unsigned int i, entries;
2248 uint32_t grouping_type;
2250 if (c->fc->nb_streams < 1)
2252 st = c->fc->streams[c->fc->nb_streams-1];
2255 version = avio_r8(pb); /* version */
2256 avio_rb24(pb); /* flags */
2257 grouping_type = avio_rl32(pb);
2258 if (grouping_type != MKTAG( 'r','a','p',' '))
2259 return 0; /* only support 'rap ' grouping */
2261 avio_rb32(pb); /* grouping_type_parameter */
2263 entries = avio_rb32(pb);
2267 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2268 av_free(sc->rap_group);
2269 sc->rap_group_count = 0;
2270 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2272 return AVERROR(ENOMEM);
2274 for (i = 0; i < entries && !pb->eof_reached; i++) {
2275 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2276 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2279 sc->rap_group_count = i;
2281 return pb->eof_reached ? AVERROR_EOF : 0;
2284 static void mov_build_index(MOVContext *mov, AVStream *st)
2286 MOVStreamContext *sc = st->priv_data;
2287 int64_t current_offset;
2288 int64_t current_dts = 0;
2289 unsigned int stts_index = 0;
2290 unsigned int stsc_index = 0;
2291 unsigned int stss_index = 0;
2292 unsigned int stps_index = 0;
2294 uint64_t stream_size = 0;
2296 if (sc->elst_count) {
2297 int i, edit_start_index = 0, unsupported = 0;
2298 int64_t empty_duration = 0; // empty duration of the first edit list entry
2299 int64_t start_time = 0; // start time of the media
2301 for (i = 0; i < sc->elst_count; i++) {
2302 const MOVElst *e = &sc->elst_data[i];
2303 if (i == 0 && e->time == -1) {
2304 /* if empty, the first entry is the start time of the stream
2305 * relative to the presentation itself */
2306 empty_duration = e->duration;
2307 edit_start_index = 1;
2308 } else if (i == edit_start_index && e->time >= 0) {
2309 start_time = e->time;
2314 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2315 "a/v desync might occur, patch welcome\n");
2317 /* adjust first dts according to edit list */
2318 if ((empty_duration || start_time) && mov->time_scale > 0) {
2320 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2321 sc->time_offset = start_time - empty_duration;
2322 current_dts = -sc->time_offset;
2323 if (sc->ctts_count>0 && sc->stts_count>0 &&
2324 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2325 /* more than 16 frames delay, dts are likely wrong
2326 this happens with files created by iMovie */
2328 st->codec->has_b_frames = 1;
2333 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2334 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2335 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2336 unsigned int current_sample = 0;
2337 unsigned int stts_sample = 0;
2338 unsigned int sample_size;
2339 unsigned int distance = 0;
2340 unsigned int rap_group_index = 0;
2341 unsigned int rap_group_sample = 0;
2342 int rap_group_present = sc->rap_group_count && sc->rap_group;
2343 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2345 current_dts -= sc->dts_shift;
2347 if (!sc->sample_count || st->nb_index_entries)
2349 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2351 if (av_reallocp_array(&st->index_entries,
2352 st->nb_index_entries + sc->sample_count,
2353 sizeof(*st->index_entries)) < 0) {
2354 st->nb_index_entries = 0;
2357 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2359 for (i = 0; i < sc->chunk_count; i++) {
2360 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2361 current_offset = sc->chunk_offsets[i];
2362 while (stsc_index + 1 < sc->stsc_count &&
2363 i + 1 == sc->stsc_data[stsc_index + 1].first)
2366 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2367 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2368 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2369 sc->stsz_sample_size = sc->sample_size;
2371 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2372 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2373 sc->stsz_sample_size = sc->sample_size;
2376 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2378 if (current_sample >= sc->sample_count) {
2379 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2383 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2385 if (stss_index + 1 < sc->keyframe_count)
2387 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2389 if (stps_index + 1 < sc->stps_count)
2392 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2393 if (sc->rap_group[rap_group_index].index > 0)
2395 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2396 rap_group_sample = 0;
2400 if (sc->keyframe_absent
2402 && !rap_group_present
2403 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2407 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2408 if (sc->pseudo_stream_id == -1 ||
2409 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2410 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2411 e->pos = current_offset;
2412 e->timestamp = current_dts;
2413 e->size = sample_size;
2414 e->min_distance = distance;
2415 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2416 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2417 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2418 current_offset, current_dts, sample_size, distance, keyframe);
2419 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2420 ff_rfps_add_frame(mov->fc, st, current_dts);
2423 current_offset += sample_size;
2424 stream_size += sample_size;
2425 current_dts += sc->stts_data[stts_index].duration;
2429 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2435 if (st->duration > 0)
2436 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2438 unsigned chunk_samples, total = 0;
2440 // compute total chunk count
2441 for (i = 0; i < sc->stsc_count; i++) {
2442 unsigned count, chunk_count;
2444 chunk_samples = sc->stsc_data[i].count;
2445 if (i != sc->stsc_count - 1 &&
2446 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2447 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2451 if (sc->samples_per_frame >= 160) { // gsm
2452 count = chunk_samples / sc->samples_per_frame;
2453 } else if (sc->samples_per_frame > 1) {
2454 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2455 count = (chunk_samples+samples-1) / samples;
2457 count = (chunk_samples+1023) / 1024;
2460 if (i < sc->stsc_count - 1)
2461 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2463 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2464 total += chunk_count * count;
2467 av_dlog(mov->fc, "chunk count %d\n", total);
2468 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2470 if (av_reallocp_array(&st->index_entries,
2471 st->nb_index_entries + total,
2472 sizeof(*st->index_entries)) < 0) {
2473 st->nb_index_entries = 0;
2476 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2479 for (i = 0; i < sc->chunk_count; i++) {
2480 current_offset = sc->chunk_offsets[i];
2481 if (stsc_index + 1 < sc->stsc_count &&
2482 i + 1 == sc->stsc_data[stsc_index + 1].first)
2484 chunk_samples = sc->stsc_data[stsc_index].count;
2486 while (chunk_samples > 0) {
2488 unsigned size, samples;
2490 if (sc->samples_per_frame >= 160) { // gsm
2491 samples = sc->samples_per_frame;
2492 size = sc->bytes_per_frame;
2494 if (sc->samples_per_frame > 1) {
2495 samples = FFMIN((1024 / sc->samples_per_frame)*
2496 sc->samples_per_frame, chunk_samples);
2497 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2499 samples = FFMIN(1024, chunk_samples);
2500 size = samples * sc->sample_size;
2504 if (st->nb_index_entries >= total) {
2505 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2508 e = &st->index_entries[st->nb_index_entries++];
2509 e->pos = current_offset;
2510 e->timestamp = current_dts;
2512 e->min_distance = 0;
2513 e->flags = AVINDEX_KEYFRAME;
2514 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2515 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2518 current_offset += size;
2519 current_dts += samples;
2520 chunk_samples -= samples;
2526 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2527 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2529 /* try relative path, we do not try the absolute because it can leak information about our
2530 system to an attacker */
2531 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2532 char filename[1024];
2533 const char *src_path;
2536 /* find a source dir */
2537 src_path = strrchr(src, '/');
2543 /* find a next level down to target */
2544 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2545 if (ref->path[l] == '/') {
2546 if (i == ref->nlvl_to - 1)
2552 /* compose filename if next level down to target was found */
2553 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2554 memcpy(filename, src, src_path - src);
2555 filename[src_path - src] = 0;
2557 for (i = 1; i < ref->nlvl_from; i++)
2558 av_strlcat(filename, "../", 1024);
2560 av_strlcat(filename, ref->path + l + 1, 1024);
2562 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2565 } else if (use_absolute_path) {
2566 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2567 "this is a possible security issue\n");
2568 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2572 return AVERROR(ENOENT);
2575 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2577 if (sc->time_scale <= 0) {
2578 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2579 sc->time_scale = c->time_scale;
2580 if (sc->time_scale <= 0)
2585 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2588 MOVStreamContext *sc;
2591 st = avformat_new_stream(c->fc, NULL);
2592 if (!st) return AVERROR(ENOMEM);
2593 st->id = c->fc->nb_streams;
2594 sc = av_mallocz(sizeof(MOVStreamContext));
2595 if (!sc) return AVERROR(ENOMEM);
2598 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2599 sc->ffindex = st->index;
2601 if ((ret = mov_read_default(c, pb, atom)) < 0)
2605 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2606 (!sc->sample_size && !sc->sample_count))) {
2607 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2612 fix_timescale(c, sc);
2614 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2616 mov_build_index(c, st);
2618 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2619 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2620 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2621 c->use_absolute_path, c->fc) < 0)
2622 av_log(c->fc, AV_LOG_ERROR,
2623 "stream %d, error opening alias: path='%s', dir='%s', "
2624 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2625 st->index, dref->path, dref->dir, dref->filename,
2626 dref->volume, dref->nlvl_from, dref->nlvl_to);
2629 sc->pb_is_copied = 1;
2632 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2633 if (!st->sample_aspect_ratio.num &&
2634 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2635 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2636 ((double)st->codec->width * sc->height), INT_MAX);
2639 #if FF_API_R_FRAME_RATE
2640 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2641 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2642 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2646 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2647 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2648 TAG_IS_AVCI(st->codec->codec_tag)) {
2649 ret = ff_generate_avci_extradata(st);
2654 switch (st->codec->codec_id) {
2655 #if CONFIG_H261_DECODER
2656 case AV_CODEC_ID_H261:
2658 #if CONFIG_H263_DECODER
2659 case AV_CODEC_ID_H263:
2661 #if CONFIG_MPEG4_DECODER
2662 case AV_CODEC_ID_MPEG4:
2664 st->codec->width = 0; /* let decoder init width/height */
2665 st->codec->height= 0;
2669 /* Do not need those anymore. */
2670 av_freep(&sc->chunk_offsets);
2671 av_freep(&sc->stsc_data);
2672 av_freep(&sc->sample_sizes);
2673 av_freep(&sc->keyframes);
2674 av_freep(&sc->stts_data);
2675 av_freep(&sc->stps_data);
2676 av_freep(&sc->elst_data);
2677 av_freep(&sc->rap_group);
2682 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2685 c->itunes_metadata = 1;
2686 ret = mov_read_default(c, pb, atom);
2687 c->itunes_metadata = 0;
2691 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2693 int64_t end = avio_tell(pb) + size;
2694 uint8_t *key = NULL, *val = NULL;
2697 MOVStreamContext *sc;
2699 if (c->fc->nb_streams < 1)
2701 st = c->fc->streams[c->fc->nb_streams-1];
2704 for (i = 0; i < 2; i++) {
2708 if (end - avio_tell(pb) <= 12)
2711 len = avio_rb32(pb);
2712 tag = avio_rl32(pb);
2713 avio_skip(pb, 4); // flags
2715 if (len < 12 || len - 12 > end - avio_tell(pb))
2719 if (tag == MKTAG('n', 'a', 'm', 'e'))
2721 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2728 *p = av_malloc(len + 1);
2731 avio_read(pb, *p, len);
2736 if (strcmp(key, "iTunSMPB") == 0) {
2737 int priming, remainder, samples;
2738 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2739 if(priming>0 && priming<16384)
2740 sc->start_pad = priming;
2743 if (strcmp(key, "cdec") != 0) {
2744 av_dict_set(&c->fc->metadata, key, val,
2745 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2750 avio_seek(pb, end, SEEK_SET);
2756 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2758 int64_t end = avio_tell(pb) + atom.size;
2764 len = avio_rb32(pb);
2765 tag = avio_rl32(pb);
2767 if (len > atom.size)
2770 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2771 uint8_t domain[128];
2774 avio_skip(pb, 4); // flags
2777 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2778 avio_skip(pb, len - domain_len);
2779 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2783 av_log(c->fc, AV_LOG_VERBOSE,
2784 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2788 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2790 while (atom.size > 8) {
2791 uint32_t tag = avio_rl32(pb);
2793 if (tag == MKTAG('h','d','l','r')) {
2794 avio_seek(pb, -8, SEEK_CUR);
2796 return mov_read_default(c, pb, atom);
2802 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2807 int display_matrix[3][3];
2809 MOVStreamContext *sc;
2813 if (c->fc->nb_streams < 1)
2815 st = c->fc->streams[c->fc->nb_streams-1];
2818 version = avio_r8(pb);
2819 flags = avio_rb24(pb);
2820 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2826 avio_rb32(pb); /* creation time */
2827 avio_rb32(pb); /* modification time */
2829 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2830 avio_rb32(pb); /* reserved */
2832 /* highlevel (considering edits) duration in movie timebase */
2833 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2834 avio_rb32(pb); /* reserved */
2835 avio_rb32(pb); /* reserved */
2837 avio_rb16(pb); /* layer */
2838 avio_rb16(pb); /* alternate group */
2839 avio_rb16(pb); /* volume */
2840 avio_rb16(pb); /* reserved */
2842 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2843 // they're kept in fixed point format through all calculations
2844 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2845 // side data, but the scale factor is not needed to calculate aspect ratio
2846 for (i = 0; i < 3; i++) {
2847 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2848 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2849 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2852 width = avio_rb32(pb); // 16.16 fixed point track width
2853 height = avio_rb32(pb); // 16.16 fixed point track height
2854 sc->width = width >> 16;
2855 sc->height = height >> 16;
2857 // save the matrix and add rotate metadata when it is not the default
2859 if (display_matrix[0][0] != (1 << 16) ||
2860 display_matrix[1][1] != (1 << 16) ||
2861 display_matrix[2][2] != (1 << 30) ||
2862 display_matrix[0][1] || display_matrix[0][2] ||
2863 display_matrix[1][0] || display_matrix[1][2] ||
2864 display_matrix[2][0] || display_matrix[2][1]) {
2868 av_freep(&sc->display_matrix);
2869 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2870 if (!sc->display_matrix)
2871 return AVERROR(ENOMEM);
2873 for (i = 0; i < 3; i++)
2874 for (j = 0; j < 3; j++)
2875 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2877 rotate = av_display_rotation_get(sc->display_matrix);
2878 if (!isnan(rotate)) {
2879 char rotate_buf[64];
2881 if (rotate < 0) // for backward compatibility
2883 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2884 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2888 // transform the display width/height according to the matrix
2889 // to keep the same scale, use [width height 1<<16]
2890 if (width && height && sc->display_matrix) {
2891 double disp_transform[2];
2893 #define SQR(a) ((a)*(double)(a))
2894 for (i = 0; i < 2; i++)
2895 disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
2897 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
2898 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
2899 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
2900 st->sample_aspect_ratio = av_d2q(
2901 disp_transform[0] / disp_transform[1],
2907 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2909 MOVFragment *frag = &c->fragment;
2910 MOVTrackExt *trex = NULL;
2911 MOVFragmentIndex* index = NULL;
2912 int flags, track_id, i;
2914 avio_r8(pb); /* version */
2915 flags = avio_rb24(pb);
2917 track_id = avio_rb32(pb);
2919 return AVERROR_INVALIDDATA;
2920 frag->track_id = track_id;
2921 for (i = 0; i < c->trex_count; i++)
2922 if (c->trex_data[i].track_id == frag->track_id) {
2923 trex = &c->trex_data[i];
2927 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2928 return AVERROR_INVALIDDATA;
2930 for (i = 0; i < c->fragment_index_count; i++) {
2931 MOVFragmentIndex* candidate = c->fragment_index_data[i];
2932 if (candidate->track_id == frag->track_id) {
2933 av_log(c->fc, AV_LOG_DEBUG,
2934 "found fragment index for track %u\n", frag->track_id);
2940 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2941 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2942 frag->moof_offset : frag->implicit_offset;
2943 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2945 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2946 avio_rb32(pb) : trex->duration;
2947 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2948 avio_rb32(pb) : trex->size;
2949 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2950 avio_rb32(pb) : trex->flags;
2951 frag->time = AV_NOPTS_VALUE;
2954 for (i = index->current_item; i < index->item_count; i++) {
2955 if (frag->implicit_offset == index->items[i].moof_offset) {
2956 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
2957 "for track %u and moof_offset %"PRId64"\n",
2958 frag->track_id, index->items[i].moof_offset);
2959 frag->time = index->items[i].time;
2960 index->current_item = i + 1;
2965 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
2966 "but it doesn't have an (in-order) entry for moof_offset "
2967 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
2970 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2974 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2976 c->chapter_track = avio_rb32(pb);
2980 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2985 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2986 return AVERROR_INVALIDDATA;
2987 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2988 sizeof(*c->trex_data))) < 0) {
2993 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2995 trex = &c->trex_data[c->trex_count++];
2996 avio_r8(pb); /* version */
2997 avio_rb24(pb); /* flags */
2998 trex->track_id = avio_rb32(pb);
2999 trex->stsd_id = avio_rb32(pb);
3000 trex->duration = avio_rb32(pb);
3001 trex->size = avio_rb32(pb);
3002 trex->flags = avio_rb32(pb);
3006 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3008 MOVFragment *frag = &c->fragment;
3009 AVStream *st = NULL;
3010 MOVStreamContext *sc;
3013 for (i = 0; i < c->fc->nb_streams; i++) {
3014 if (c->fc->streams[i]->id == frag->track_id) {
3015 st = c->fc->streams[i];
3020 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3021 return AVERROR_INVALIDDATA;
3024 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3026 version = avio_r8(pb);
3027 avio_rb24(pb); /* flags */
3029 sc->track_end = avio_rb64(pb);
3031 sc->track_end = avio_rb32(pb);
3036 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3038 MOVFragment *frag = &c->fragment;
3039 AVStream *st = NULL;
3040 MOVStreamContext *sc;
3044 int data_offset = 0;
3045 unsigned entries, first_sample_flags = frag->flags;
3046 int flags, distance, i, found_keyframe = 0, err;
3048 for (i = 0; i < c->fc->nb_streams; i++) {
3049 if (c->fc->streams[i]->id == frag->track_id) {
3050 st = c->fc->streams[i];
3055 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3056 return AVERROR_INVALIDDATA;
3059 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3061 avio_r8(pb); /* version */
3062 flags = avio_rb24(pb);
3063 entries = avio_rb32(pb);
3064 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
3066 /* Always assume the presence of composition time offsets.
3067 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3068 * 1) in the initial movie, there are no samples.
3069 * 2) in the first movie fragment, there is only one sample without composition time offset.
3070 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3071 if (!sc->ctts_count && sc->sample_count)
3073 /* Complement ctts table if moov atom doesn't have ctts atom. */
3074 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3076 return AVERROR(ENOMEM);
3077 sc->ctts_data = ctts_data;
3078 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3079 sc->ctts_data[sc->ctts_count].duration = 0;
3082 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3083 return AVERROR_INVALIDDATA;
3084 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3085 sizeof(*sc->ctts_data))) < 0) {
3089 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3090 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3091 dts = sc->track_end - sc->time_offset;
3092 offset = frag->base_data_offset + data_offset;
3094 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3095 for (i = 0; i < entries && !pb->eof_reached; i++) {
3096 unsigned sample_size = frag->size;
3097 int sample_flags = i ? frag->flags : first_sample_flags;
3098 unsigned sample_duration = frag->duration;
3101 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3102 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3103 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3104 sc->ctts_data[sc->ctts_count].count = 1;
3105 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3107 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3108 if (frag->time != AV_NOPTS_VALUE) {
3109 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3110 int64_t pts = frag->time;
3111 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3112 " sc->dts_shift %d ctts.duration %d"
3113 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3114 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3115 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3116 dts = pts - sc->dts_shift;
3117 if (flags & MOV_TRUN_SAMPLE_CTS) {
3118 dts -= sc->ctts_data[sc->ctts_count].duration;
3120 dts -= sc->time_offset;
3122 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3125 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3126 ", using it for dts\n", dts);
3128 frag->time = AV_NOPTS_VALUE;
3131 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3133 else if (!found_keyframe)
3134 keyframe = found_keyframe =
3135 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3136 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3139 av_add_index_entry(st, offset, dts, sample_size, distance,
3140 keyframe ? AVINDEX_KEYFRAME : 0);
3141 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3142 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3143 offset, dts, sample_size, distance, keyframe);
3145 dts += sample_duration;
3146 offset += sample_size;
3147 sc->data_size += sample_size;
3148 sc->duration_for_fps += sample_duration;
3149 sc->nb_frames_for_fps ++;
3152 if (pb->eof_reached)
3155 frag->implicit_offset = offset;
3156 st->duration = sc->track_end = dts + sc->time_offset;
3160 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3161 /* like the files created with Adobe Premiere 5.0, for samples see */
3162 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3163 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3168 return 0; /* continue */
3169 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3170 avio_skip(pb, atom.size - 4);
3173 atom.type = avio_rl32(pb);
3175 if (atom.type != MKTAG('m','d','a','t')) {
3176 avio_skip(pb, atom.size);
3179 err = mov_read_mdat(c, pb, atom);
3183 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3188 uint8_t *moov_data; /* uncompressed data */
3189 long cmov_len, moov_len;
3192 avio_rb32(pb); /* dcom atom */
3193 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3194 return AVERROR_INVALIDDATA;
3195 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3196 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3197 return AVERROR_INVALIDDATA;
3199 avio_rb32(pb); /* cmvd atom */
3200 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3201 return AVERROR_INVALIDDATA;
3202 moov_len = avio_rb32(pb); /* uncompressed size */
3203 cmov_len = atom.size - 6 * 4;
3205 cmov_data = av_malloc(cmov_len);
3207 return AVERROR(ENOMEM);
3208 moov_data = av_malloc(moov_len);
3211 return AVERROR(ENOMEM);
3213 avio_read(pb, cmov_data, cmov_len);
3214 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3215 goto free_and_return;
3216 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3217 goto free_and_return;
3218 atom.type = MKTAG('m','o','o','v');
3219 atom.size = moov_len;
3220 ret = mov_read_default(c, &ctx, atom);
3226 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3227 return AVERROR(ENOSYS);
3231 /* edit list atom */
3232 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3234 MOVStreamContext *sc;
3235 int i, edit_count, version;
3237 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3239 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3241 version = avio_r8(pb); /* version */
3242 avio_rb24(pb); /* flags */
3243 edit_count = avio_rb32(pb); /* entries */
3248 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3249 av_free(sc->elst_data);
3251 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3253 return AVERROR(ENOMEM);
3255 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3256 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3257 MOVElst *e = &sc->elst_data[i];
3260 e->duration = avio_rb64(pb);
3261 e->time = avio_rb64(pb);
3263 e->duration = avio_rb32(pb); /* segment duration */
3264 e->time = (int32_t)avio_rb32(pb); /* media time */
3266 e->rate = avio_rb32(pb) / 65536.0;
3267 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3268 e->duration, e->time, e->rate);
3275 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3277 MOVStreamContext *sc;
3279 if (c->fc->nb_streams < 1)
3280 return AVERROR_INVALIDDATA;
3281 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3282 sc->timecode_track = avio_rb32(pb);
3286 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3290 static const uint8_t uuid_isml_manifest[] = {
3291 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3292 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3295 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3296 return AVERROR_INVALIDDATA;
3298 ret = avio_read(pb, uuid, sizeof(uuid));
3301 } else if (ret != sizeof(uuid)) {
3302 return AVERROR_INVALIDDATA;
3304 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3305 uint8_t *buffer, *ptr;
3307 size_t len = atom.size - sizeof(uuid);
3310 return AVERROR_INVALIDDATA;
3312 ret = avio_skip(pb, 4); // zeroes
3315 buffer = av_mallocz(len + 1);
3317 return AVERROR(ENOMEM);
3319 ret = avio_read(pb, buffer, len);
3323 } else if (ret != len) {
3325 return AVERROR_INVALIDDATA;
3329 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3330 ptr += sizeof("systemBitrate=\"") - 1;
3331 c->bitrates_count++;
3332 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3334 c->bitrates_count = 0;
3336 return AVERROR(ENOMEM);
3339 ret = strtol(ptr, &endptr, 10);
3340 if (ret < 0 || errno || *endptr != '"') {
3341 c->bitrates[c->bitrates_count - 1] = 0;
3343 c->bitrates[c->bitrates_count - 1] = ret;
3352 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3355 uint8_t content[16];
3360 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3366 && !memcmp(content, "Anevia\x1A\x1A", 8)
3367 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3368 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3374 static const MOVParseTableEntry mov_default_parse_table[] = {
3375 { MKTAG('A','C','L','R'), mov_read_avid },
3376 { MKTAG('A','P','R','G'), mov_read_avid },
3377 { MKTAG('A','A','L','P'), mov_read_avid },
3378 { MKTAG('A','R','E','S'), mov_read_ares },
3379 { MKTAG('a','v','s','s'), mov_read_avss },
3380 { MKTAG('c','h','p','l'), mov_read_chpl },
3381 { MKTAG('c','o','6','4'), mov_read_stco },
3382 { MKTAG('c','o','l','r'), mov_read_colr },
3383 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3384 { MKTAG('d','i','n','f'), mov_read_default },
3385 { MKTAG('D','p','x','E'), mov_read_dpxe },
3386 { MKTAG('d','r','e','f'), mov_read_dref },
3387 { MKTAG('e','d','t','s'), mov_read_default },
3388 { MKTAG('e','l','s','t'), mov_read_elst },
3389 { MKTAG('e','n','d','a'), mov_read_enda },
3390 { MKTAG('f','i','e','l'), mov_read_fiel },
3391 { MKTAG('f','t','y','p'), mov_read_ftyp },
3392 { MKTAG('g','l','b','l'), mov_read_glbl },
3393 { MKTAG('h','d','l','r'), mov_read_hdlr },
3394 { MKTAG('i','l','s','t'), mov_read_ilst },
3395 { MKTAG('j','p','2','h'), mov_read_jp2h },
3396 { MKTAG('m','d','a','t'), mov_read_mdat },
3397 { MKTAG('m','d','h','d'), mov_read_mdhd },
3398 { MKTAG('m','d','i','a'), mov_read_default },
3399 { MKTAG('m','e','t','a'), mov_read_meta },
3400 { MKTAG('m','i','n','f'), mov_read_default },
3401 { MKTAG('m','o','o','f'), mov_read_moof },
3402 { MKTAG('m','o','o','v'), mov_read_moov },
3403 { MKTAG('m','v','e','x'), mov_read_default },
3404 { MKTAG('m','v','h','d'), mov_read_mvhd },
3405 { MKTAG('S','M','I',' '), mov_read_svq3 },
3406 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3407 { MKTAG('a','v','c','C'), mov_read_glbl },
3408 { MKTAG('p','a','s','p'), mov_read_pasp },
3409 { MKTAG('s','t','b','l'), mov_read_default },
3410 { MKTAG('s','t','c','o'), mov_read_stco },
3411 { MKTAG('s','t','p','s'), mov_read_stps },
3412 { MKTAG('s','t','r','f'), mov_read_strf },
3413 { MKTAG('s','t','s','c'), mov_read_stsc },
3414 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3415 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3416 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3417 { MKTAG('s','t','t','s'), mov_read_stts },
3418 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3419 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3420 { MKTAG('t','f','d','t'), mov_read_tfdt },
3421 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3422 { MKTAG('t','r','a','k'), mov_read_trak },
3423 { MKTAG('t','r','a','f'), mov_read_default },
3424 { MKTAG('t','r','e','f'), mov_read_default },
3425 { MKTAG('t','m','c','d'), mov_read_tmcd },
3426 { MKTAG('c','h','a','p'), mov_read_chap },
3427 { MKTAG('t','r','e','x'), mov_read_trex },
3428 { MKTAG('t','r','u','n'), mov_read_trun },
3429 { MKTAG('u','d','t','a'), mov_read_default },
3430 { MKTAG('w','a','v','e'), mov_read_wave },
3431 { MKTAG('e','s','d','s'), mov_read_esds },
3432 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3433 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3434 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3435 { MKTAG('w','f','e','x'), mov_read_wfex },
3436 { MKTAG('c','m','o','v'), mov_read_cmov },
3437 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3438 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3439 { MKTAG('s','b','g','p'), mov_read_sbgp },
3440 { MKTAG('h','v','c','C'), mov_read_glbl },
3441 { MKTAG('u','u','i','d'), mov_read_uuid },
3442 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3443 { MKTAG('f','r','e','e'), mov_read_free },
3444 { MKTAG('-','-','-','-'), mov_read_custom },
3448 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3450 int64_t total_size = 0;
3454 if (c->atom_depth > 10) {
3455 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
3456 return AVERROR_INVALIDDATA;
3461 atom.size = INT64_MAX;
3462 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3463 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3466 if (atom.size >= 8) {
3467 a.size = avio_rb32(pb);
3468 a.type = avio_rl32(pb);
3469 if (a.type == MKTAG('f','r','e','e') &&
3473 uint32_t *type = (uint32_t *)buf + 1;
3474 avio_read(pb, buf, 8);
3475 avio_seek(pb, -8, SEEK_CUR);
3476 if (*type == MKTAG('m','v','h','d') ||
3477 *type == MKTAG('c','m','o','v')) {
3478 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3479 a.type = MKTAG('m','o','o','v');
3482 if (atom.type != MKTAG('r','o','o','t') &&
3483 atom.type != MKTAG('m','o','o','v'))
3485 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3487 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3494 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
3495 a.size = avio_rb64(pb) - 8;
3499 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3500 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3502 a.size = atom.size - total_size + 8;
3507 a.size = FFMIN(a.size, atom.size - total_size);
3509 for (i = 0; mov_default_parse_table[i].type; i++)
3510 if (mov_default_parse_table[i].type == a.type) {
3511 parse = mov_default_parse_table[i].parse;
3515 // container is user data
3516 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3517 atom.type == MKTAG('i','l','s','t')))
3518 parse = mov_read_udta_string;
3520 if (!parse) { /* skip leaf atoms data */
3521 avio_skip(pb, a.size);
3523 int64_t start_pos = avio_tell(pb);
3525 int err = parse(c, pb, a);
3530 if (c->found_moov && c->found_mdat &&
3531 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3532 start_pos + a.size == avio_size(pb))) {
3533 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3534 c->next_root_atom = start_pos + a.size;
3538 left = a.size - avio_tell(pb) + start_pos;
3539 if (left > 0) /* skip garbage at atom end */
3540 avio_skip(pb, left);
3541 else if (left < 0) {
3542 av_log(c->fc, AV_LOG_WARNING,
3543 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3544 (char*)&a.type, -left);
3545 avio_seek(pb, left, SEEK_CUR);
3549 total_size += a.size;
3552 if (total_size < atom.size && atom.size < 0x7ffff)
3553 avio_skip(pb, atom.size - total_size);
3559 static int mov_probe(AVProbeData *p)
3564 int moov_offset = -1;
3566 /* check file header */
3569 /* ignore invalid offset */
3570 if ((offset + 8) > (unsigned int)p->buf_size)
3572 tag = AV_RL32(p->buf + offset + 4);
3574 /* check for obvious tags */
3575 case MKTAG('m','o','o','v'):
3576 moov_offset = offset + 4;
3577 case MKTAG('m','d','a','t'):
3578 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3579 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3580 case MKTAG('f','t','y','p'):
3581 if (AV_RB32(p->buf+offset) < 8 &&
3582 (AV_RB32(p->buf+offset) != 1 ||
3583 offset + 12 > (unsigned int)p->buf_size ||
3584 AV_RB64(p->buf+offset + 8) == 0)) {
3585 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3586 } else if (tag == MKTAG('f','t','y','p') &&
3587 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3588 score = FFMAX(score, 5);
3590 score = AVPROBE_SCORE_MAX;
3592 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3594 /* those are more common words, so rate then a bit less */
3595 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3596 case MKTAG('w','i','d','e'):
3597 case MKTAG('f','r','e','e'):
3598 case MKTAG('j','u','n','k'):
3599 case MKTAG('p','i','c','t'):
3600 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3601 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3603 case MKTAG(0x82,0x82,0x7f,0x7d):
3604 case MKTAG('s','k','i','p'):
3605 case MKTAG('u','u','i','d'):
3606 case MKTAG('p','r','f','l'):
3607 /* if we only find those cause probedata is too small at least rate them */
3608 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3609 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3612 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3615 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3616 /* moov atom in the header - we should make sure that this is not a
3617 * MOV-packed MPEG-PS */
3618 offset = moov_offset;
3620 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3621 /* We found an actual hdlr atom */
3622 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3623 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3624 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3625 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3626 /* We found a media handler reference atom describing an
3627 * MPEG-PS-in-MOV, return a
3628 * low score to force expanding the probe window until
3629 * mpegps_probe finds what it needs */
3640 // must be done after parsing all trak because there's no order requirement
3641 static void mov_read_chapters(AVFormatContext *s)
3643 MOVContext *mov = s->priv_data;
3644 AVStream *st = NULL;
3645 MOVStreamContext *sc;
3649 for (i = 0; i < s->nb_streams; i++)
3650 if (s->streams[i]->id == mov->chapter_track) {
3655 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3659 st->discard = AVDISCARD_ALL;
3661 cur_pos = avio_tell(sc->pb);
3663 for (i = 0; i < st->nb_index_entries; i++) {
3664 AVIndexEntry *sample = &st->index_entries[i];
3665 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3670 if (end < sample->timestamp) {
3671 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3672 end = AV_NOPTS_VALUE;
3675 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3676 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3680 // the first two bytes are the length of the title
3681 len = avio_rb16(sc->pb);
3682 if (len > sample->size-2)
3684 title_len = 2*len + 1;
3685 if (!(title = av_mallocz(title_len)))
3688 // The samples could theoretically be in any encoding if there's an encd
3689 // atom following, but in practice are only utf-8 or utf-16, distinguished
3690 // instead by the presence of a BOM
3694 ch = avio_rb16(sc->pb);
3696 avio_get_str16be(sc->pb, len, title, title_len);
3697 else if (ch == 0xfffe)
3698 avio_get_str16le(sc->pb, len, title, title_len);
3701 if (len == 1 || len == 2)
3704 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3708 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3712 avio_seek(sc->pb, cur_pos, SEEK_SET);
3715 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3716 uint32_t value, int flags)
3719 char buf[AV_TIMECODE_STR_SIZE];
3720 AVRational rate = {st->codec->time_base.den,
3721 st->codec->time_base.num};
3722 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3725 av_dict_set(&st->metadata, "timecode",
3726 av_timecode_make_string(&tc, buf, value), 0);
3730 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3732 MOVStreamContext *sc = st->priv_data;
3734 int64_t cur_pos = avio_tell(sc->pb);
3737 if (!st->nb_index_entries)
3740 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3741 value = avio_rb32(s->pb);
3743 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3744 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3745 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3747 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3748 * not the case) and thus assume "frame number format" instead of QT one.
3749 * No sample with tmcd track can be found with a QT timecode at the moment,
3750 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3752 parse_timecode_in_framenum_format(s, st, value, flags);
3754 avio_seek(sc->pb, cur_pos, SEEK_SET);
3758 static int mov_read_close(AVFormatContext *s)
3760 MOVContext *mov = s->priv_data;
3763 for (i = 0; i < s->nb_streams; i++) {
3764 AVStream *st = s->streams[i];
3765 MOVStreamContext *sc = st->priv_data;
3767 av_freep(&sc->ctts_data);
3768 for (j = 0; j < sc->drefs_count; j++) {
3769 av_freep(&sc->drefs[j].path);
3770 av_freep(&sc->drefs[j].dir);
3772 av_freep(&sc->drefs);
3774 sc->drefs_count = 0;
3776 if (!sc->pb_is_copied)
3777 avio_closep(&sc->pb);
3780 av_freep(&sc->chunk_offsets);
3781 av_freep(&sc->stsc_data);
3782 av_freep(&sc->sample_sizes);
3783 av_freep(&sc->keyframes);
3784 av_freep(&sc->stts_data);
3785 av_freep(&sc->stps_data);
3786 av_freep(&sc->elst_data);
3787 av_freep(&sc->rap_group);
3788 av_freep(&sc->display_matrix);
3791 if (mov->dv_demux) {
3792 avformat_free_context(mov->dv_fctx);
3793 mov->dv_fctx = NULL;
3796 av_freep(&mov->trex_data);
3797 av_freep(&mov->bitrates);
3799 for (i = 0; i < mov->fragment_index_count; i++) {
3800 MOVFragmentIndex* index = mov->fragment_index_data[i];
3801 av_freep(&index->items);
3802 av_freep(&mov->fragment_index_data[i]);
3804 av_freep(&mov->fragment_index_data);
3809 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3813 for (i = 0; i < s->nb_streams; i++) {
3814 AVStream *st = s->streams[i];
3815 MOVStreamContext *sc = st->priv_data;
3817 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3818 sc->timecode_track == tmcd_id)
3824 /* look for a tmcd track not referenced by any video track, and export it globally */
3825 static void export_orphan_timecode(AVFormatContext *s)
3829 for (i = 0; i < s->nb_streams; i++) {
3830 AVStream *st = s->streams[i];
3832 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3833 !tmcd_is_referenced(s, i + 1)) {
3834 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3836 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3843 static int read_tfra(MOVContext *mov, AVIOContext *f)
3845 MOVFragmentIndex* index = NULL;
3846 int version, fieldlength, i, j;
3847 int64_t pos = avio_tell(f);
3848 uint32_t size = avio_rb32(f);
3851 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3854 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3855 index = av_mallocz(sizeof(MOVFragmentIndex));
3857 return AVERROR(ENOMEM);
3860 tmp = av_realloc_array(mov->fragment_index_data,
3861 mov->fragment_index_count + 1,
3862 sizeof(MOVFragmentIndex*));
3865 return AVERROR(ENOMEM);
3867 mov->fragment_index_data = tmp;
3868 mov->fragment_index_data[mov->fragment_index_count++] = index;
3870 version = avio_r8(f);
3872 index->track_id = avio_rb32(f);
3873 fieldlength = avio_rb32(f);
3874 index->item_count = avio_rb32(f);
3875 index->items = av_mallocz_array(
3876 index->item_count, sizeof(MOVFragmentIndexItem));
3877 if (!index->items) {
3878 index->item_count = 0;
3879 return AVERROR(ENOMEM);
3881 for (i = 0; i < index->item_count; i++) {
3882 int64_t time, offset;
3884 time = avio_rb64(f);
3885 offset = avio_rb64(f);
3887 time = avio_rb32(f);
3888 offset = avio_rb32(f);
3890 index->items[i].time = time;
3891 index->items[i].moof_offset = offset;
3892 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3894 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3896 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3900 avio_seek(f, pos + size, SEEK_SET);
3904 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3906 int64_t stream_size = avio_size(f);
3907 int64_t original_pos = avio_tell(f);
3911 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
3915 mfra_size = avio_rb32(f);
3916 if (mfra_size < 0 || mfra_size > stream_size) {
3917 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
3920 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
3924 if (avio_rb32(f) != mfra_size) {
3925 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
3928 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
3929 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
3932 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
3934 ret = read_tfra(c, f);
3940 seek_ret = avio_seek(f, original_pos, SEEK_SET);
3942 av_log(c->fc, AV_LOG_ERROR,
3943 "failed to seek back after looking for mfra\n");
3949 static int mov_read_header(AVFormatContext *s)
3951 MOVContext *mov = s->priv_data;
3952 AVIOContext *pb = s->pb;
3954 MOVAtom atom = { AV_RL32("root") };
3958 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3960 atom.size = avio_size(pb);
3962 atom.size = INT64_MAX;
3964 /* check MOV header */
3966 if (mov->moov_retry)
3967 avio_seek(pb, 0, SEEK_SET);
3968 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3969 av_log(s, AV_LOG_ERROR, "error reading header\n");
3973 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3974 if (!mov->found_moov) {
3975 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3977 return AVERROR_INVALIDDATA;
3979 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3982 if (mov->chapter_track > 0)
3983 mov_read_chapters(s);
3984 for (i = 0; i < s->nb_streams; i++)
3985 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3986 mov_read_timecode_track(s, s->streams[i]);
3989 /* copy timecode metadata from tmcd tracks to the related video streams */
3990 for (i = 0; i < s->nb_streams; i++) {
3991 AVStream *st = s->streams[i];
3992 MOVStreamContext *sc = st->priv_data;
3993 if (sc->timecode_track > 0) {
3994 AVDictionaryEntry *tcr;
3995 int tmcd_st_id = -1;
3997 for (j = 0; j < s->nb_streams; j++)
3998 if (s->streams[j]->id == sc->timecode_track)
4001 if (tmcd_st_id < 0 || tmcd_st_id == i)
4003 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4005 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4008 export_orphan_timecode(s);
4010 for (i = 0; i < s->nb_streams; i++) {
4011 AVStream *st = s->streams[i];
4012 MOVStreamContext *sc = st->priv_data;
4013 fix_timescale(mov, sc);
4014 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
4015 st->skip_samples = sc->start_pad;
4017 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4018 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4019 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4020 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4021 if (st->codec->width <= 0 || st->codec->height <= 0) {
4022 st->codec->width = sc->width;
4023 st->codec->height = sc->height;
4025 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4026 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4032 if (mov->trex_data) {
4033 for (i = 0; i < s->nb_streams; i++) {
4034 AVStream *st = s->streams[i];
4035 MOVStreamContext *sc = st->priv_data;
4036 if (st->duration > 0)
4037 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4041 if (mov->use_mfra_for > 0) {
4042 for (i = 0; i < s->nb_streams; i++) {
4043 AVStream *st = s->streams[i];
4044 MOVStreamContext *sc = st->priv_data;
4045 if (sc->duration_for_fps > 0) {
4046 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4047 sc->duration_for_fps;
4052 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4053 if (mov->bitrates[i]) {
4054 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4058 ff_rfps_calculate(s);
4060 for (i = 0; i < s->nb_streams; i++) {
4061 AVStream *st = s->streams[i];
4062 MOVStreamContext *sc = st->priv_data;
4064 switch (st->codec->codec_type) {
4065 case AVMEDIA_TYPE_AUDIO:
4066 err = ff_replaygain_export(st, s->metadata);
4072 case AVMEDIA_TYPE_VIDEO:
4073 if (sc->display_matrix) {
4074 AVPacketSideData *sd, *tmp;
4076 tmp = av_realloc_array(st->side_data,
4077 st->nb_side_data + 1, sizeof(*tmp));
4079 return AVERROR(ENOMEM);
4081 st->side_data = tmp;
4084 sd = &st->side_data[st->nb_side_data - 1];
4085 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4086 sd->size = sizeof(int32_t) * 9;
4087 sd->data = (uint8_t*)sc->display_matrix;
4088 sc->display_matrix = NULL;
4097 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4099 AVIndexEntry *sample = NULL;
4100 int64_t best_dts = INT64_MAX;
4102 for (i = 0; i < s->nb_streams; i++) {
4103 AVStream *avst = s->streams[i];
4104 MOVStreamContext *msc = avst->priv_data;
4105 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4106 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4107 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4108 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4109 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4111 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4112 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4113 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4114 sample = current_sample;
4123 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4125 MOVContext *mov = s->priv_data;
4126 MOVStreamContext *sc;
4127 AVIndexEntry *sample;
4128 AVStream *st = NULL;
4132 sample = mov_find_next_sample(s, &st);
4134 mov->found_mdat = 0;
4135 if (!mov->next_root_atom)
4137 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4138 mov->next_root_atom = 0;
4139 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4142 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4146 /* must be done just before reading, to avoid infinite loop on sample */
4147 sc->current_sample++;
4149 if (mov->next_root_atom) {
4150 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4151 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4154 if (st->discard != AVDISCARD_ALL) {
4155 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4156 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4157 sc->ffindex, sample->pos);
4158 return AVERROR_INVALIDDATA;
4160 ret = av_get_packet(sc->pb, pkt, sample->size);
4163 if (sc->has_palette) {
4166 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4168 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4170 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4171 sc->has_palette = 0;
4174 #if CONFIG_DV_DEMUXER
4175 if (mov->dv_demux && sc->dv_audio_container) {
4176 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4177 av_freep(&pkt->data);
4179 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4186 pkt->stream_index = sc->ffindex;
4187 pkt->dts = sample->timestamp;
4188 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4189 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4190 /* update ctts context */
4192 if (sc->ctts_index < sc->ctts_count &&
4193 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4195 sc->ctts_sample = 0;
4198 pkt->dts = AV_NOPTS_VALUE;
4200 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4201 st->index_entries[sc->current_sample].timestamp : st->duration;
4202 pkt->duration = next_dts - pkt->dts;
4203 pkt->pts = pkt->dts;
4205 if (st->discard == AVDISCARD_ALL)
4207 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4208 pkt->pos = sample->pos;
4209 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4210 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4214 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4216 MOVStreamContext *sc = st->priv_data;
4217 int sample, time_sample;
4220 sample = av_index_search_timestamp(st, timestamp, flags);
4221 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4222 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4224 if (sample < 0) /* not sure what to do */
4225 return AVERROR_INVALIDDATA;
4226 sc->current_sample = sample;
4227 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4228 /* adjust ctts index */
4229 if (sc->ctts_data) {
4231 for (i = 0; i < sc->ctts_count; i++) {
4232 int next = time_sample + sc->ctts_data[i].count;
4233 if (next > sc->current_sample) {
4235 sc->ctts_sample = sc->current_sample - time_sample;
4244 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4247 int64_t seek_timestamp, timestamp;
4251 if (stream_index >= s->nb_streams)
4252 return AVERROR_INVALIDDATA;
4254 st = s->streams[stream_index];
4255 sample = mov_seek_stream(s, st, sample_time, flags);
4259 /* adjust seek timestamp to found sample timestamp */
4260 seek_timestamp = st->index_entries[sample].timestamp;
4262 for (i = 0; i < s->nb_streams; i++) {
4263 MOVStreamContext *sc = s->streams[i]->priv_data;
4265 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4267 if (stream_index == i)
4270 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4271 mov_seek_stream(s, st, timestamp, flags);
4276 #define OFFSET(x) offsetof(MOVContext, x)
4277 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4278 static const AVOption mov_options[] = {
4279 {"use_absolute_path",
4280 "allow using absolute path when opening alias, this is a possible security issue",
4281 OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4283 {"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4286 "use mfra for fragment timestamps",
4287 OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4288 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
4290 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4291 FLAGS, "use_mfra_for" },
4292 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4293 FLAGS, "use_mfra_for" },
4294 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4295 FLAGS, "use_mfra_for" },
4296 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4297 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4298 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4299 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4303 static const AVClass mov_class = {
4304 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4305 .item_name = av_default_item_name,
4306 .option = mov_options,
4307 .version = LIBAVUTIL_VERSION_INT,
4310 AVInputFormat ff_mov_demuxer = {
4311 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4312 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4313 .priv_class = &mov_class,
4314 .priv_data_size = sizeof(MOVContext),
4315 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4316 .read_probe = mov_probe,
4317 .read_header = mov_read_header,
4318 .read_packet = mov_read_packet,
4319 .read_close = mov_read_close,
4320 .read_seek = mov_read_seek,
4321 .flags = AVFMT_NO_BYTE_SEEK,