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 if (str_size > atom.size) {
363 avio_seek(pb, -2, SEEK_CUR);
364 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
367 langcode = avio_rb16(pb);
368 ff_mov_lang_to_iso639(langcode, language);
371 str_size = atom.size;
373 if (c->export_all && !key) {
374 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
380 if (atom.size < 0 || str_size >= INT_MAX/2)
381 return AVERROR_INVALIDDATA;
383 // worst-case requirement for output string in case of utf8 coded input
384 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
385 str = av_mallocz(str_size_alloc);
387 return AVERROR(ENOMEM);
390 parse(c, pb, str_size, key);
392 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
393 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
395 int ret = avio_read(pb, str, str_size);
396 if (ret != str_size) {
398 return ret < 0 ? ret : AVERROR_INVALIDDATA;
402 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
403 av_dict_set(&c->fc->metadata, key, str, 0);
404 if (*language && strcmp(language, "und")) {
405 snprintf(key2, sizeof(key2), "%s-%s", key, language);
406 av_dict_set(&c->fc->metadata, key2, str, 0);
409 av_dlog(c->fc, "lang \"%3s\" ", language);
410 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
411 key, str, (char*)&atom.type, str_size_alloc, atom.size);
417 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
420 int i, nb_chapters, str_len, version;
423 if ((atom.size -= 5) < 0)
426 version = avio_r8(pb);
429 avio_rb32(pb); // ???
430 nb_chapters = avio_r8(pb);
432 for (i = 0; i < nb_chapters; i++) {
436 start = avio_rb64(pb);
437 str_len = avio_r8(pb);
439 if ((atom.size -= 9+str_len) < 0)
442 avio_read(pb, str, str_len);
444 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
449 #define MIN_DATA_ENTRY_BOX_SIZE 12
450 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
453 MOVStreamContext *sc;
456 if (c->fc->nb_streams < 1)
458 st = c->fc->streams[c->fc->nb_streams-1];
461 avio_rb32(pb); // version + flags
462 entries = avio_rb32(pb);
463 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
464 entries >= UINT_MAX / sizeof(*sc->drefs))
465 return AVERROR_INVALIDDATA;
468 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
470 return AVERROR(ENOMEM);
471 sc->drefs_count = entries;
473 for (i = 0; i < sc->drefs_count; i++) {
474 MOVDref *dref = &sc->drefs[i];
475 uint32_t size = avio_rb32(pb);
476 int64_t next = avio_tell(pb) + size - 4;
479 return AVERROR_INVALIDDATA;
481 dref->type = avio_rl32(pb);
482 avio_rb32(pb); // version + flags
483 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
485 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
486 /* macintosh alias record */
487 uint16_t volume_len, len;
492 volume_len = avio_r8(pb);
493 volume_len = FFMIN(volume_len, 27);
494 avio_read(pb, dref->volume, 27);
495 dref->volume[volume_len] = 0;
496 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
501 len = FFMIN(len, 63);
502 avio_read(pb, dref->filename, 63);
503 dref->filename[len] = 0;
504 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
508 /* read next level up_from_alias/down_to_target */
509 dref->nlvl_from = avio_rb16(pb);
510 dref->nlvl_to = avio_rb16(pb);
511 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
512 dref->nlvl_from, dref->nlvl_to);
516 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
519 type = avio_rb16(pb);
521 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
524 if (type == 2) { // absolute path
526 dref->path = av_mallocz(len+1);
528 return AVERROR(ENOMEM);
529 avio_read(pb, dref->path, len);
530 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
532 memmove(dref->path, dref->path+volume_len, len);
535 for (j = 0; j < len; j++)
536 if (dref->path[j] == ':')
538 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
539 } else if (type == 0) { // directory name
541 dref->dir = av_malloc(len+1);
543 return AVERROR(ENOMEM);
544 if (avio_read(pb, dref->dir, len) != len)
545 return AVERROR_INVALIDDATA;
547 for (j = 0; j < len; j++)
548 if (dref->dir[j] == ':')
550 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
555 avio_seek(pb, next, SEEK_SET);
560 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
564 uint32_t av_unused ctype;
568 if (c->fc->nb_streams < 1) // meta before first trak
571 st = c->fc->streams[c->fc->nb_streams-1];
573 avio_r8(pb); /* version */
574 avio_rb24(pb); /* flags */
577 ctype = avio_rl32(pb);
578 type = avio_rl32(pb); /* component subtype */
580 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
581 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
583 if (type == MKTAG('v','i','d','e'))
584 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
585 else if (type == MKTAG('s','o','u','n'))
586 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
587 else if (type == MKTAG('m','1','a',' '))
588 st->codec->codec_id = AV_CODEC_ID_MP2;
589 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
590 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
592 avio_rb32(pb); /* component manufacture */
593 avio_rb32(pb); /* component flags */
594 avio_rb32(pb); /* component flags mask */
596 title_size = atom.size - 24;
597 if (title_size > 0) {
598 title_str = av_malloc(title_size + 1); /* Add null terminator */
600 return AVERROR(ENOMEM);
601 avio_read(pb, title_str, title_size);
602 title_str[title_size] = 0;
604 int off = (!c->isom && title_str[0] == title_size - 1);
605 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
607 av_freep(&title_str);
613 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
618 if (fc->nb_streams < 1)
620 st = fc->streams[fc->nb_streams-1];
622 avio_rb32(pb); /* version + flags */
623 ff_mp4_read_descr(fc, pb, &tag);
624 if (tag == MP4ESDescrTag) {
625 ff_mp4_parse_es_descr(pb, NULL);
627 avio_rb16(pb); /* ID */
629 ff_mp4_read_descr(fc, pb, &tag);
630 if (tag == MP4DecConfigDescrTag)
631 ff_mp4_read_dec_config_descr(fc, st, pb);
635 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
637 return ff_mov_read_esds(c->fc, pb);
640 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
643 enum AVAudioServiceType *ast;
644 int ac3info, acmod, lfeon, bsmod;
646 if (c->fc->nb_streams < 1)
648 st = c->fc->streams[c->fc->nb_streams-1];
650 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
653 return AVERROR(ENOMEM);
655 ac3info = avio_rb24(pb);
656 bsmod = (ac3info >> 14) & 0x7;
657 acmod = (ac3info >> 11) & 0x7;
658 lfeon = (ac3info >> 10) & 0x1;
659 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
660 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
662 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
664 if (st->codec->channels > 1 && bsmod == 0x7)
665 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
667 st->codec->audio_service_type = *ast;
672 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
675 enum AVAudioServiceType *ast;
676 int eac3info, acmod, lfeon, bsmod;
678 if (c->fc->nb_streams < 1)
680 st = c->fc->streams[c->fc->nb_streams-1];
682 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
685 return AVERROR(ENOMEM);
687 /* No need to parse fields for additional independent substreams and its
688 * associated dependent substreams since libavcodec's E-AC-3 decoder
689 * does not support them yet. */
690 avio_rb16(pb); /* data_rate and num_ind_sub */
691 eac3info = avio_rb24(pb);
692 bsmod = (eac3info >> 12) & 0x1f;
693 acmod = (eac3info >> 9) & 0x7;
694 lfeon = (eac3info >> 8) & 0x1;
695 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
697 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
698 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
700 if (st->codec->channels > 1 && bsmod == 0x7)
701 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
703 st->codec->audio_service_type = *ast;
708 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
712 if (c->fc->nb_streams < 1)
714 st = c->fc->streams[c->fc->nb_streams-1];
719 /* skip version and flags */
722 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
727 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
732 if (c->fc->nb_streams < 1)
734 st = c->fc->streams[c->fc->nb_streams-1];
736 if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
737 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
742 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
744 const int num = avio_rb32(pb);
745 const int den = avio_rb32(pb);
748 if (c->fc->nb_streams < 1)
750 st = c->fc->streams[c->fc->nb_streams-1];
752 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
753 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
754 av_log(c->fc, AV_LOG_WARNING,
755 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
756 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
758 } else if (den != 0) {
759 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
765 /* this atom contains actual media data */
766 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
768 if (atom.size == 0) /* wrong one (MP4) */
771 return 0; /* now go for moov */
774 /* read major brand, minor version and compatible brands and store them as metadata */
775 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
779 char* comp_brands_str;
780 uint8_t type[5] = {0};
782 avio_read(pb, type, 4);
783 if (strcmp(type, "qt "))
785 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
786 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
787 minor_ver = avio_rb32(pb); /* minor version */
788 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
790 comp_brand_size = atom.size - 8;
791 if (comp_brand_size < 0)
792 return AVERROR_INVALIDDATA;
793 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
794 if (!comp_brands_str)
795 return AVERROR(ENOMEM);
796 avio_read(pb, comp_brands_str, comp_brand_size);
797 comp_brands_str[comp_brand_size] = 0;
798 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
799 av_freep(&comp_brands_str);
804 /* this atom should contain all header atoms */
805 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
810 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
811 avio_skip(pb, atom.size);
815 if ((ret = mov_read_default(c, pb, atom)) < 0)
817 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
818 /* so we don't parse the whole file if over a network */
820 return 0; /* now go for mdat */
823 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
825 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
826 c->has_looked_for_mfra = 1;
829 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
831 if ((ret = mov_read_mfra(c, pb)) < 0) {
832 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
833 "read the mfra (may be a live ismv)\n");
836 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
837 "seekable, can not look for mfra\n");
840 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
841 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
842 return mov_read_default(c, pb, atom);
845 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
849 struct tm *ptm, tmbuf;
851 if(time >= 2082844800)
852 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
854 ptm = gmtime_r(&timet, &tmbuf);
856 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
857 av_dict_set(metadata, "creation_time", buffer, 0);
861 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
864 MOVStreamContext *sc;
866 char language[4] = {0};
868 int64_t creation_time;
870 if (c->fc->nb_streams < 1)
872 st = c->fc->streams[c->fc->nb_streams-1];
875 if (sc->time_scale) {
876 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
877 return AVERROR_INVALIDDATA;
880 version = avio_r8(pb);
882 avpriv_request_sample(c->fc, "Version %d", version);
883 return AVERROR_PATCHWELCOME;
885 avio_rb24(pb); /* flags */
887 creation_time = avio_rb64(pb);
890 creation_time = avio_rb32(pb);
891 avio_rb32(pb); /* modification time */
893 mov_metadata_creation_time(&st->metadata, creation_time);
895 sc->time_scale = avio_rb32(pb);
896 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
898 lang = avio_rb16(pb); /* language */
899 if (ff_mov_lang_to_iso639(lang, language))
900 av_dict_set(&st->metadata, "language", language, 0);
901 avio_rb16(pb); /* quality */
906 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
908 int64_t creation_time;
909 int version = avio_r8(pb); /* version */
910 avio_rb24(pb); /* flags */
913 creation_time = avio_rb64(pb);
916 creation_time = avio_rb32(pb);
917 avio_rb32(pb); /* modification time */
919 mov_metadata_creation_time(&c->fc->metadata, creation_time);
920 c->time_scale = avio_rb32(pb); /* time scale */
922 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
924 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
925 // set the AVCodecContext duration because the duration of individual tracks
927 if (c->time_scale > 0 && !c->trex_data)
928 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
929 avio_rb32(pb); /* preferred scale */
931 avio_rb16(pb); /* preferred volume */
933 avio_skip(pb, 10); /* reserved */
935 avio_skip(pb, 36); /* display matrix */
937 avio_rb32(pb); /* preview time */
938 avio_rb32(pb); /* preview duration */
939 avio_rb32(pb); /* poster time */
940 avio_rb32(pb); /* selection time */
941 avio_rb32(pb); /* selection duration */
942 avio_rb32(pb); /* current time */
943 avio_rb32(pb); /* next track ID */
947 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
952 if (c->fc->nb_streams < 1)
954 st = c->fc->streams[c->fc->nb_streams-1];
956 little_endian = avio_rb16(pb) & 0xFF;
957 av_dlog(c->fc, "enda %d\n", little_endian);
958 if (little_endian == 1) {
959 switch (st->codec->codec_id) {
960 case AV_CODEC_ID_PCM_S24BE:
961 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
963 case AV_CODEC_ID_PCM_S32BE:
964 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
966 case AV_CODEC_ID_PCM_F32BE:
967 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
969 case AV_CODEC_ID_PCM_F64BE:
970 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
979 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
982 char color_parameter_type[5] = { 0 };
983 int color_primaries, color_trc, color_matrix;
985 if (c->fc->nb_streams < 1)
987 st = c->fc->streams[c->fc->nb_streams - 1];
989 avio_read(pb, color_parameter_type, 4);
990 if (strncmp(color_parameter_type, "nclx", 4) &&
991 strncmp(color_parameter_type, "nclc", 4)) {
992 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
993 color_parameter_type);
997 color_primaries = avio_rb16(pb);
998 color_trc = avio_rb16(pb);
999 color_matrix = avio_rb16(pb);
1001 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
1002 color_parameter_type, color_primaries, color_trc, color_matrix);
1005 uint8_t color_range = avio_r8(pb) >> 7;
1006 av_dlog(c->fc, " full %"PRIu8"", color_range);
1008 st->codec->color_range = AVCOL_RANGE_JPEG;
1010 st->codec->color_range = AVCOL_RANGE_MPEG;
1011 /* 14496-12 references JPEG XR specs (rather than the more complete
1012 * 23001-8) so some adjusting is required */
1013 if (color_primaries >= AVCOL_PRI_FILM)
1014 color_primaries = AVCOL_PRI_UNSPECIFIED;
1015 if ((color_trc >= AVCOL_TRC_LINEAR &&
1016 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1017 color_trc >= AVCOL_TRC_BT2020_10)
1018 color_trc = AVCOL_TRC_UNSPECIFIED;
1019 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1020 color_matrix = AVCOL_SPC_UNSPECIFIED;
1021 st->codec->color_primaries = color_primaries;
1022 st->codec->color_trc = color_trc;
1023 st->codec->colorspace = color_matrix;
1025 /* color primaries, Table 4-4 */
1026 switch (color_primaries) {
1027 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1028 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1029 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1031 /* color transfer, Table 4-5 */
1032 switch (color_trc) {
1033 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1034 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1036 /* color matrix, Table 4-6 */
1037 switch (color_matrix) {
1038 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1039 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1040 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1043 av_dlog(c->fc, "\n");
1048 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1051 unsigned mov_field_order;
1052 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1054 if (c->fc->nb_streams < 1) // will happen with jp2 files
1056 st = c->fc->streams[c->fc->nb_streams-1];
1058 return AVERROR_INVALIDDATA;
1059 mov_field_order = avio_rb16(pb);
1060 if ((mov_field_order & 0xFF00) == 0x0100)
1061 decoded_field_order = AV_FIELD_PROGRESSIVE;
1062 else if ((mov_field_order & 0xFF00) == 0x0200) {
1063 switch (mov_field_order & 0xFF) {
1064 case 0x01: decoded_field_order = AV_FIELD_TT;
1066 case 0x06: decoded_field_order = AV_FIELD_BB;
1068 case 0x09: decoded_field_order = AV_FIELD_TB;
1070 case 0x0E: decoded_field_order = AV_FIELD_BT;
1074 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1075 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1077 st->codec->field_order = decoded_field_order;
1082 static int mov_realloc_extradata(AVCodecContext *codec, MOVAtom atom)
1085 uint64_t size = (uint64_t)codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1086 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1087 return AVERROR_INVALIDDATA;
1088 if ((err = av_reallocp(&codec->extradata, size)) < 0) {
1089 codec->extradata_size = 0;
1092 codec->extradata_size = size - FF_INPUT_BUFFER_PADDING_SIZE;
1096 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1097 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1098 AVCodecContext *codec, uint8_t *buf)
1100 int64_t result = atom.size;
1103 AV_WB32(buf , atom.size + 8);
1104 AV_WL32(buf + 4, atom.type);
1105 err = avio_read(pb, buf + 8, atom.size);
1107 codec->extradata_size -= atom.size;
1109 } else if (err < atom.size) {
1110 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1111 codec->extradata_size -= atom.size - err;
1114 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1118 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1119 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1120 enum AVCodecID codec_id)
1123 uint64_t original_size;
1126 if (c->fc->nb_streams < 1) // will happen with jp2 files
1128 st = c->fc->streams[c->fc->nb_streams-1];
1130 if (st->codec->codec_id != codec_id)
1131 return 0; /* unexpected codec_id - don't mess with extradata */
1133 original_size = st->codec->extradata_size;
1134 err = mov_realloc_extradata(st->codec, atom);
1138 err = mov_read_atom_into_extradata(c, pb, atom, st->codec, st->codec->extradata + original_size);
1141 return 0; // Note: this is the original behavior to ignore truncation.
1144 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1145 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1147 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1150 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1152 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1155 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1157 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1160 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1162 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1165 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1167 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1169 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1173 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1175 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1177 if (!ret && c->fc->nb_streams >= 1) {
1178 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1179 if (avctx->extradata_size >= 40) {
1180 avctx->height = AV_RB16(&avctx->extradata[36]);
1181 avctx->width = AV_RB16(&avctx->extradata[38]);
1187 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1189 if (c->fc->nb_streams >= 1) {
1190 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1191 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1192 codec->codec_id == AV_CODEC_ID_H264 &&
1195 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1196 if (avio_rb16(pb) == 0xd4d)
1197 codec->width = 1440;
1202 return mov_read_avid(c, pb, atom);
1205 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1209 uint64_t original_size;
1210 if (c->fc->nb_streams >= 1) {
1211 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1212 if (atom.size == 16) {
1213 original_size = codec->extradata_size;
1214 ret = mov_realloc_extradata(codec, atom);
1216 length = mov_read_atom_into_extradata(c, pb, atom, codec, codec->extradata + original_size);
1217 if (length == atom.size) {
1218 const uint8_t range_value = codec->extradata[original_size + 19];
1219 switch (range_value) {
1221 codec->color_range = AVCOL_RANGE_MPEG;
1224 codec->color_range = AVCOL_RANGE_JPEG;
1227 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1230 av_dlog(c, "color_range: %"PRIu8"\n", codec->color_range);
1232 /* For some reason the whole atom was not added to the extradata */
1233 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1236 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1239 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1246 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1248 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1251 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1255 if (c->fc->nb_streams < 1)
1257 st = c->fc->streams[c->fc->nb_streams-1];
1259 if ((uint64_t)atom.size > (1<<30))
1260 return AVERROR_INVALIDDATA;
1262 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1263 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1264 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1265 // pass all frma atom to codec, needed at least for QDMC and QDM2
1266 av_freep(&st->codec->extradata);
1267 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1268 return AVERROR(ENOMEM);
1269 } else if (atom.size > 8) { /* to read frma, esds atoms */
1271 if ((ret = mov_read_default(c, pb, atom)) < 0)
1274 avio_skip(pb, atom.size);
1279 * This function reads atom content and puts data in extradata without tag
1280 * nor size unlike mov_read_extradata.
1282 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1286 if (c->fc->nb_streams < 1)
1288 st = c->fc->streams[c->fc->nb_streams-1];
1290 if ((uint64_t)atom.size > (1<<30))
1291 return AVERROR_INVALIDDATA;
1293 if (atom.size >= 10) {
1294 // Broken files created by legacy versions of libavformat will
1295 // wrap a whole fiel atom inside of a glbl atom.
1296 unsigned size = avio_rb32(pb);
1297 unsigned type = avio_rl32(pb);
1298 avio_seek(pb, -8, SEEK_CUR);
1299 if (type == MKTAG('f','i','e','l') && size == atom.size)
1300 return mov_read_default(c, pb, atom);
1302 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1303 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1306 av_freep(&st->codec->extradata);
1307 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1308 return AVERROR(ENOMEM);
1313 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1316 uint8_t profile_level;
1319 if (c->fc->nb_streams < 1)
1321 st = c->fc->streams[c->fc->nb_streams-1];
1323 if (atom.size >= (1<<28) || atom.size < 7)
1324 return AVERROR_INVALIDDATA;
1326 profile_level = avio_r8(pb);
1327 if ((profile_level & 0xf0) != 0xc0)
1330 avio_seek(pb, 6, SEEK_CUR);
1331 av_freep(&st->codec->extradata);
1332 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1339 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1340 * but can have extradata appended at the end after the 40 bytes belonging
1343 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1347 if (c->fc->nb_streams < 1)
1349 if (atom.size <= 40)
1351 st = c->fc->streams[c->fc->nb_streams-1];
1353 if ((uint64_t)atom.size > (1<<30))
1354 return AVERROR_INVALIDDATA;
1357 av_freep(&st->codec->extradata);
1358 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1359 return AVERROR(ENOMEM);
1363 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1366 MOVStreamContext *sc;
1367 unsigned int i, entries;
1369 if (c->fc->nb_streams < 1)
1371 st = c->fc->streams[c->fc->nb_streams-1];
1374 avio_r8(pb); /* version */
1375 avio_rb24(pb); /* flags */
1377 entries = avio_rb32(pb);
1382 if (sc->chunk_offsets)
1383 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1384 av_free(sc->chunk_offsets);
1385 sc->chunk_count = 0;
1386 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1387 if (!sc->chunk_offsets)
1388 return AVERROR(ENOMEM);
1389 sc->chunk_count = entries;
1391 if (atom.type == MKTAG('s','t','c','o'))
1392 for (i = 0; i < entries && !pb->eof_reached; i++)
1393 sc->chunk_offsets[i] = avio_rb32(pb);
1394 else if (atom.type == MKTAG('c','o','6','4'))
1395 for (i = 0; i < entries && !pb->eof_reached; i++)
1396 sc->chunk_offsets[i] = avio_rb64(pb);
1398 return AVERROR_INVALIDDATA;
1400 sc->chunk_count = i;
1402 if (pb->eof_reached)
1409 * Compute codec id for 'lpcm' tag.
1410 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1412 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1419 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1422 static int mov_codec_id(AVStream *st, uint32_t format)
1424 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1427 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1428 (format & 0xFFFF) == 'T' + ('S' << 8)))
1429 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1431 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1432 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1433 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1434 /* skip old asf mpeg4 tag */
1435 format && format != MKTAG('m','p','4','s')) {
1436 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1438 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1440 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1441 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1442 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1443 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1444 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1446 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1450 st->codec->codec_tag = format;
1455 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1456 AVStream *st, MOVStreamContext *sc)
1458 uint8_t codec_name[32];
1459 unsigned int color_depth, len, j;
1460 int color_greyscale;
1463 avio_rb16(pb); /* version */
1464 avio_rb16(pb); /* revision level */
1465 avio_rb32(pb); /* vendor */
1466 avio_rb32(pb); /* temporal quality */
1467 avio_rb32(pb); /* spatial quality */
1469 st->codec->width = avio_rb16(pb); /* width */
1470 st->codec->height = avio_rb16(pb); /* height */
1472 avio_rb32(pb); /* horiz resolution */
1473 avio_rb32(pb); /* vert resolution */
1474 avio_rb32(pb); /* data size, always 0 */
1475 avio_rb16(pb); /* frames per samples */
1477 len = avio_r8(pb); /* codec name, pascal string */
1480 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1482 avio_skip(pb, 31 - len);
1485 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1487 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1488 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1489 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1490 st->codec->width &= ~1;
1491 st->codec->height &= ~1;
1493 /* Flash Media Server uses tag H263 with Sorenson Spark */
1494 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1495 !memcmp(codec_name, "Sorenson H263", 13))
1496 st->codec->codec_id = AV_CODEC_ID_FLV1;
1498 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1499 color_table_id = avio_rb16(pb); /* colortable id */
1500 av_dlog(c->fc, "depth %d, ctab id %d\n",
1501 st->codec->bits_per_coded_sample, color_table_id);
1502 /* figure out the palette situation */
1503 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1504 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1505 /* Do not create a greyscale palette for cinepak */
1506 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1509 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1510 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1511 /* for palette traversal */
1512 unsigned int color_start, color_count, color_end;
1513 unsigned char a, r, g, b;
1515 if (color_greyscale) {
1516 int color_index, color_dec;
1517 /* compute the greyscale palette */
1518 st->codec->bits_per_coded_sample = color_depth;
1519 color_count = 1 << color_depth;
1521 color_dec = 256 / (color_count - 1);
1522 for (j = 0; j < color_count; j++) {
1523 r = g = b = color_index;
1524 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1525 color_index -= color_dec;
1526 if (color_index < 0)
1529 } else if (color_table_id) {
1530 const uint8_t *color_table;
1531 /* if flag bit 3 is set, use the default palette */
1532 color_count = 1 << color_depth;
1533 if (color_depth == 2)
1534 color_table = ff_qt_default_palette_4;
1535 else if (color_depth == 4)
1536 color_table = ff_qt_default_palette_16;
1538 color_table = ff_qt_default_palette_256;
1540 for (j = 0; j < color_count; j++) {
1541 r = color_table[j * 3 + 0];
1542 g = color_table[j * 3 + 1];
1543 b = color_table[j * 3 + 2];
1544 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1547 /* load the palette from the file */
1548 color_start = avio_rb32(pb);
1549 color_count = avio_rb16(pb);
1550 color_end = avio_rb16(pb);
1551 if ((color_start <= 255) && (color_end <= 255)) {
1552 for (j = color_start; j <= color_end; j++) {
1553 /* each A, R, G, or B component is 16 bits;
1554 * only use the top 8 bits */
1563 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1567 sc->has_palette = 1;
1571 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1572 AVStream *st, MOVStreamContext *sc)
1574 int bits_per_sample, flags;
1575 uint16_t version = avio_rb16(pb);
1576 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1578 avio_rb16(pb); /* revision level */
1579 avio_rb32(pb); /* vendor */
1581 st->codec->channels = avio_rb16(pb); /* channel count */
1582 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1583 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1585 sc->audio_cid = avio_rb16(pb);
1586 avio_rb16(pb); /* packet size = 0 */
1588 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1590 // Read QT version 1 fields. In version 0 these do not exist.
1591 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1593 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1596 sc->samples_per_frame = avio_rb32(pb);
1597 avio_rb32(pb); /* bytes per packet */
1598 sc->bytes_per_frame = avio_rb32(pb);
1599 avio_rb32(pb); /* bytes per sample */
1600 } else if (version == 2) {
1601 avio_rb32(pb); /* sizeof struct only */
1602 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1603 st->codec->channels = avio_rb32(pb);
1604 avio_rb32(pb); /* always 0x7F000000 */
1605 st->codec->bits_per_coded_sample = avio_rb32(pb);
1607 flags = avio_rb32(pb); /* lpcm format specific flag */
1608 sc->bytes_per_frame = avio_rb32(pb);
1609 sc->samples_per_frame = avio_rb32(pb);
1610 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1611 st->codec->codec_id =
1612 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1617 switch (st->codec->codec_id) {
1618 case AV_CODEC_ID_PCM_S8:
1619 case AV_CODEC_ID_PCM_U8:
1620 if (st->codec->bits_per_coded_sample == 16)
1621 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1623 case AV_CODEC_ID_PCM_S16LE:
1624 case AV_CODEC_ID_PCM_S16BE:
1625 if (st->codec->bits_per_coded_sample == 8)
1626 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1627 else if (st->codec->bits_per_coded_sample == 24)
1628 st->codec->codec_id =
1629 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1630 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1631 else if (st->codec->bits_per_coded_sample == 32)
1632 st->codec->codec_id =
1633 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1634 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1636 /* set values for old format before stsd version 1 appeared */
1637 case AV_CODEC_ID_MACE3:
1638 sc->samples_per_frame = 6;
1639 sc->bytes_per_frame = 2 * st->codec->channels;
1641 case AV_CODEC_ID_MACE6:
1642 sc->samples_per_frame = 6;
1643 sc->bytes_per_frame = 1 * st->codec->channels;
1645 case AV_CODEC_ID_ADPCM_IMA_QT:
1646 sc->samples_per_frame = 64;
1647 sc->bytes_per_frame = 34 * st->codec->channels;
1649 case AV_CODEC_ID_GSM:
1650 sc->samples_per_frame = 160;
1651 sc->bytes_per_frame = 33;
1657 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1658 if (bits_per_sample) {
1659 st->codec->bits_per_coded_sample = bits_per_sample;
1660 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1664 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1665 AVStream *st, MOVStreamContext *sc,
1668 // ttxt stsd contains display flags, justification, background
1669 // color, fonts, and default styles, so fake an atom to read it
1670 MOVAtom fake_atom = { .size = size };
1671 // mp4s contains a regular esds atom
1672 if (st->codec->codec_tag != AV_RL32("mp4s"))
1673 mov_read_glbl(c, pb, fake_atom);
1674 st->codec->width = sc->width;
1675 st->codec->height = sc->height;
1678 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1683 y = (ycbcr >> 16) & 0xFF;
1684 cr = (ycbcr >> 8) & 0xFF;
1687 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1688 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1689 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1691 return (r << 16) | (g << 8) | b;
1694 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1696 char buf[256] = {0};
1697 uint8_t *src = st->codec->extradata;
1700 if (st->codec->extradata_size != 64)
1703 if (st->codec->width > 0 && st->codec->height > 0)
1704 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1705 st->codec->width, st->codec->height);
1706 av_strlcat(buf, "palette: ", sizeof(buf));
1708 for (i = 0; i < 16; i++) {
1709 uint32_t yuv = AV_RB32(src + i * 4);
1710 uint32_t rgba = yuv_to_rgba(yuv);
1712 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1715 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1718 av_freep(&st->codec->extradata);
1719 st->codec->extradata_size = 0;
1720 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1721 if (!st->codec->extradata)
1722 return AVERROR(ENOMEM);
1723 st->codec->extradata_size = strlen(buf);
1724 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1729 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1730 AVStream *st, MOVStreamContext *sc,
1733 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1734 if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
1735 return AVERROR(ENOMEM);
1737 MOVStreamContext *tmcd_ctx = st->priv_data;
1739 val = AV_RB32(st->codec->extradata + 4);
1740 tmcd_ctx->tmcd_flags = val;
1742 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1743 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1744 st->codec->time_base.num = 1;
1745 /* adjust for per frame dur in counter mode */
1746 if (tmcd_ctx->tmcd_flags & 0x0008) {
1747 int timescale = AV_RB32(st->codec->extradata + 8);
1748 int framedur = AV_RB32(st->codec->extradata + 12);
1749 st->codec->time_base.den *= timescale;
1750 st->codec->time_base.num *= framedur;
1753 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1754 uint32_t format = AV_RB32(st->codec->extradata + 22);
1755 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1756 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1757 if (str_size > 0 && size >= (int)str_size + 26) {
1758 char *reel_name = av_malloc(str_size + 1);
1760 return AVERROR(ENOMEM);
1761 memcpy(reel_name, st->codec->extradata + 30, str_size);
1762 reel_name[str_size] = 0; /* Add null terminator */
1763 /* don't add reel_name if emtpy string */
1764 if (*reel_name == 0) {
1767 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1774 /* other codec type, just skip (rtp, mp4s ...) */
1775 avio_skip(pb, size);
1780 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1781 AVStream *st, MOVStreamContext *sc)
1783 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1784 !st->codec->sample_rate && sc->time_scale > 1)
1785 st->codec->sample_rate = sc->time_scale;
1787 /* special codec parameters handling */
1788 switch (st->codec->codec_id) {
1789 #if CONFIG_DV_DEMUXER
1790 case AV_CODEC_ID_DVAUDIO:
1791 c->dv_fctx = avformat_alloc_context();
1792 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1794 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1795 return AVERROR(ENOMEM);
1797 sc->dv_audio_container = 1;
1798 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1801 /* no ifdef since parameters are always those */
1802 case AV_CODEC_ID_QCELP:
1803 st->codec->channels = 1;
1804 // force sample rate for qcelp when not stored in mov
1805 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1806 st->codec->sample_rate = 8000;
1807 // FIXME: Why is the following needed for some files?
1808 sc->samples_per_frame = 160;
1809 if (!sc->bytes_per_frame)
1810 sc->bytes_per_frame = 35;
1812 case AV_CODEC_ID_AMR_NB:
1813 st->codec->channels = 1;
1814 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1815 st->codec->sample_rate = 8000;
1817 case AV_CODEC_ID_AMR_WB:
1818 st->codec->channels = 1;
1819 st->codec->sample_rate = 16000;
1821 case AV_CODEC_ID_MP2:
1822 case AV_CODEC_ID_MP3:
1823 /* force type after stsd for m1a hdlr */
1824 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1825 st->need_parsing = AVSTREAM_PARSE_FULL;
1827 case AV_CODEC_ID_GSM:
1828 case AV_CODEC_ID_ADPCM_MS:
1829 case AV_CODEC_ID_ADPCM_IMA_WAV:
1830 case AV_CODEC_ID_ILBC:
1831 case AV_CODEC_ID_MACE3:
1832 case AV_CODEC_ID_MACE6:
1833 case AV_CODEC_ID_QDM2:
1834 st->codec->block_align = sc->bytes_per_frame;
1836 case AV_CODEC_ID_ALAC:
1837 if (st->codec->extradata_size == 36) {
1838 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1839 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1842 case AV_CODEC_ID_AC3:
1843 case AV_CODEC_ID_EAC3:
1844 case AV_CODEC_ID_MPEG1VIDEO:
1845 case AV_CODEC_ID_VC1:
1846 st->need_parsing = AVSTREAM_PARSE_FULL;
1854 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1855 int codec_tag, int format,
1858 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1861 (codec_tag != format &&
1862 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1863 : codec_tag != MKTAG('j','p','e','g')))) {
1864 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1865 * export it as a separate AVStream but this needs a few changes
1866 * in the MOV demuxer, patch welcome. */
1868 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1869 avio_skip(pb, size);
1872 if ( codec_tag == AV_RL32("avc1") ||
1873 codec_tag == AV_RL32("hvc1") ||
1874 codec_tag == AV_RL32("hev1")
1876 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1881 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1884 MOVStreamContext *sc;
1885 int pseudo_stream_id;
1887 if (c->fc->nb_streams < 1)
1889 st = c->fc->streams[c->fc->nb_streams-1];
1892 for (pseudo_stream_id = 0;
1893 pseudo_stream_id < entries && !pb->eof_reached;
1894 pseudo_stream_id++) {
1895 //Parsing Sample description table
1897 int ret, dref_id = 1;
1898 MOVAtom a = { AV_RL32("stsd") };
1899 int64_t start_pos = avio_tell(pb);
1900 int64_t size = avio_rb32(pb); /* size */
1901 uint32_t format = avio_rl32(pb); /* data format */
1904 avio_rb32(pb); /* reserved */
1905 avio_rb16(pb); /* reserved */
1906 dref_id = avio_rb16(pb);
1907 }else if (size <= 7){
1908 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1909 return AVERROR_INVALIDDATA;
1912 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1913 size - (avio_tell(pb) - start_pos)))
1916 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1917 sc->dref_id= dref_id;
1919 id = mov_codec_id(st, format);
1921 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1922 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1923 (format >> 24) & 0xff, st->codec->codec_type);
1925 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1926 st->codec->codec_id = id;
1927 mov_parse_stsd_video(c, pb, st, sc);
1928 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1929 st->codec->codec_id = id;
1930 mov_parse_stsd_audio(c, pb, st, sc);
1931 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1932 st->codec->codec_id = id;
1933 mov_parse_stsd_subtitle(c, pb, st, sc,
1934 size - (avio_tell(pb) - start_pos));
1936 ret = mov_parse_stsd_data(c, pb, st, sc,
1937 size - (avio_tell(pb) - start_pos));
1941 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1942 a.size = size - (avio_tell(pb) - start_pos);
1944 if ((ret = mov_read_default(c, pb, a)) < 0)
1946 } else if (a.size > 0)
1947 avio_skip(pb, a.size);
1950 if (pb->eof_reached)
1953 return mov_finalize_stsd_codec(c, pb, st, sc);
1956 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1960 avio_r8(pb); /* version */
1961 avio_rb24(pb); /* flags */
1962 entries = avio_rb32(pb);
1964 return ff_mov_read_stsd_entries(c, pb, entries);
1967 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1970 MOVStreamContext *sc;
1971 unsigned int i, entries;
1973 if (c->fc->nb_streams < 1)
1975 st = c->fc->streams[c->fc->nb_streams-1];
1978 avio_r8(pb); /* version */
1979 avio_rb24(pb); /* flags */
1981 entries = avio_rb32(pb);
1983 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1988 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
1989 av_free(sc->stsc_data);
1991 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
1993 return AVERROR(ENOMEM);
1995 for (i = 0; i < entries && !pb->eof_reached; i++) {
1996 sc->stsc_data[i].first = avio_rb32(pb);
1997 sc->stsc_data[i].count = avio_rb32(pb);
1998 sc->stsc_data[i].id = avio_rb32(pb);
2003 if (pb->eof_reached)
2009 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2012 MOVStreamContext *sc;
2013 unsigned i, entries;
2015 if (c->fc->nb_streams < 1)
2017 st = c->fc->streams[c->fc->nb_streams-1];
2020 avio_rb32(pb); // version + flags
2022 entries = avio_rb32(pb);
2024 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2025 av_free(sc->stps_data);
2027 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2029 return AVERROR(ENOMEM);
2031 for (i = 0; i < entries && !pb->eof_reached; i++) {
2032 sc->stps_data[i] = avio_rb32(pb);
2033 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
2038 if (pb->eof_reached)
2044 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2047 MOVStreamContext *sc;
2048 unsigned int i, entries;
2050 if (c->fc->nb_streams < 1)
2052 st = c->fc->streams[c->fc->nb_streams-1];
2055 avio_r8(pb); /* version */
2056 avio_rb24(pb); /* flags */
2058 entries = avio_rb32(pb);
2060 av_dlog(c->fc, "keyframe_count = %d\n", entries);
2064 sc->keyframe_absent = 1;
2065 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2066 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2070 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2071 if (entries >= UINT_MAX / sizeof(int))
2072 return AVERROR_INVALIDDATA;
2073 av_freep(&sc->keyframes);
2074 sc->keyframe_count = 0;
2075 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2077 return AVERROR(ENOMEM);
2079 for (i = 0; i < entries && !pb->eof_reached; i++) {
2080 sc->keyframes[i] = avio_rb32(pb);
2081 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
2084 sc->keyframe_count = i;
2086 if (pb->eof_reached)
2092 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2095 MOVStreamContext *sc;
2096 unsigned int i, entries, sample_size, field_size, num_bytes;
2100 if (c->fc->nb_streams < 1)
2102 st = c->fc->streams[c->fc->nb_streams-1];
2105 avio_r8(pb); /* version */
2106 avio_rb24(pb); /* flags */
2108 if (atom.type == MKTAG('s','t','s','z')) {
2109 sample_size = avio_rb32(pb);
2110 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2111 sc->sample_size = sample_size;
2112 sc->stsz_sample_size = sample_size;
2116 avio_rb24(pb); /* reserved */
2117 field_size = avio_r8(pb);
2119 entries = avio_rb32(pb);
2121 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2123 sc->sample_count = entries;
2127 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2128 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2129 return AVERROR_INVALIDDATA;
2134 if (entries >= (UINT_MAX - 4) / field_size)
2135 return AVERROR_INVALIDDATA;
2136 if (sc->sample_sizes)
2137 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2138 av_free(sc->sample_sizes);
2139 sc->sample_count = 0;
2140 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2141 if (!sc->sample_sizes)
2142 return AVERROR(ENOMEM);
2144 num_bytes = (entries*field_size+4)>>3;
2146 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2148 av_freep(&sc->sample_sizes);
2149 return AVERROR(ENOMEM);
2152 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2153 av_freep(&sc->sample_sizes);
2155 return AVERROR_INVALIDDATA;
2158 init_get_bits(&gb, buf, 8*num_bytes);
2160 for (i = 0; i < entries && !pb->eof_reached; i++) {
2161 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2162 sc->data_size += sc->sample_sizes[i];
2165 sc->sample_count = i;
2167 if (pb->eof_reached)
2174 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2177 MOVStreamContext *sc;
2178 unsigned int i, entries;
2180 int64_t total_sample_count=0;
2182 if (c->fc->nb_streams < 1)
2184 st = c->fc->streams[c->fc->nb_streams-1];
2187 avio_r8(pb); /* version */
2188 avio_rb24(pb); /* flags */
2189 entries = avio_rb32(pb);
2191 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2192 c->fc->nb_streams-1, entries);
2195 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2196 av_free(sc->stts_data);
2198 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2200 return AVERROR(ENOMEM);
2202 for (i = 0; i < entries && !pb->eof_reached; i++) {
2203 int sample_duration;
2206 sample_count=avio_rb32(pb);
2207 sample_duration = avio_rb32(pb);
2209 /* sample_duration < 0 is invalid based on the spec */
2210 if (sample_duration < 0) {
2211 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2212 sample_duration, i, c->fc->nb_streams-1);
2213 sample_duration = 1;
2215 if (sample_count < 0) {
2216 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2217 return AVERROR_INVALIDDATA;
2219 sc->stts_data[i].count= sample_count;
2220 sc->stts_data[i].duration= sample_duration;
2222 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2223 sample_count, sample_duration);
2227 && sample_count == 1
2228 && total_sample_count > 100
2229 && sample_duration/10 > duration / total_sample_count)
2230 sample_duration = duration / total_sample_count;
2231 duration+=(int64_t)sample_duration*sample_count;
2232 total_sample_count+=sample_count;
2237 sc->duration_for_fps += duration;
2238 sc->nb_frames_for_fps += total_sample_count;
2240 if (pb->eof_reached)
2243 st->nb_frames= total_sample_count;
2245 st->duration= duration;
2246 sc->track_end = duration;
2250 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2253 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2257 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2260 MOVStreamContext *sc;
2261 unsigned int i, entries;
2263 if (c->fc->nb_streams < 1)
2265 st = c->fc->streams[c->fc->nb_streams-1];
2268 avio_r8(pb); /* version */
2269 avio_rb24(pb); /* flags */
2270 entries = avio_rb32(pb);
2272 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2276 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2277 return AVERROR_INVALIDDATA;
2278 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2280 return AVERROR(ENOMEM);
2282 for (i = 0; i < entries && !pb->eof_reached; i++) {
2283 int count =avio_rb32(pb);
2284 int duration =avio_rb32(pb);
2286 sc->ctts_data[i].count = count;
2287 sc->ctts_data[i].duration= duration;
2289 av_dlog(c->fc, "count=%d, duration=%d\n",
2292 if (FFABS(duration) > (1<<28) && i+2<entries) {
2293 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2294 av_freep(&sc->ctts_data);
2300 mov_update_dts_shift(sc, duration);
2305 if (pb->eof_reached)
2308 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2313 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2316 MOVStreamContext *sc;
2317 unsigned int i, entries;
2319 uint32_t grouping_type;
2321 if (c->fc->nb_streams < 1)
2323 st = c->fc->streams[c->fc->nb_streams-1];
2326 version = avio_r8(pb); /* version */
2327 avio_rb24(pb); /* flags */
2328 grouping_type = avio_rl32(pb);
2329 if (grouping_type != MKTAG( 'r','a','p',' '))
2330 return 0; /* only support 'rap ' grouping */
2332 avio_rb32(pb); /* grouping_type_parameter */
2334 entries = avio_rb32(pb);
2338 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2339 av_free(sc->rap_group);
2340 sc->rap_group_count = 0;
2341 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2343 return AVERROR(ENOMEM);
2345 for (i = 0; i < entries && !pb->eof_reached; i++) {
2346 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2347 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2350 sc->rap_group_count = i;
2352 return pb->eof_reached ? AVERROR_EOF : 0;
2355 static void mov_build_index(MOVContext *mov, AVStream *st)
2357 MOVStreamContext *sc = st->priv_data;
2358 int64_t current_offset;
2359 int64_t current_dts = 0;
2360 unsigned int stts_index = 0;
2361 unsigned int stsc_index = 0;
2362 unsigned int stss_index = 0;
2363 unsigned int stps_index = 0;
2365 uint64_t stream_size = 0;
2367 if (sc->elst_count) {
2368 int i, edit_start_index = 0, unsupported = 0;
2369 int64_t empty_duration = 0; // empty duration of the first edit list entry
2370 int64_t start_time = 0; // start time of the media
2372 for (i = 0; i < sc->elst_count; i++) {
2373 const MOVElst *e = &sc->elst_data[i];
2374 if (i == 0 && e->time == -1) {
2375 /* if empty, the first entry is the start time of the stream
2376 * relative to the presentation itself */
2377 empty_duration = e->duration;
2378 edit_start_index = 1;
2379 } else if (i == edit_start_index && e->time >= 0) {
2380 start_time = e->time;
2385 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2386 "a/v desync might occur, patch welcome\n");
2388 /* adjust first dts according to edit list */
2389 if ((empty_duration || start_time) && mov->time_scale > 0) {
2391 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2392 sc->time_offset = start_time - empty_duration;
2393 current_dts = -sc->time_offset;
2394 if (sc->ctts_count>0 && sc->stts_count>0 &&
2395 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2396 /* more than 16 frames delay, dts are likely wrong
2397 this happens with files created by iMovie */
2399 st->codec->has_b_frames = 1;
2404 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2405 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2406 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2407 unsigned int current_sample = 0;
2408 unsigned int stts_sample = 0;
2409 unsigned int sample_size;
2410 unsigned int distance = 0;
2411 unsigned int rap_group_index = 0;
2412 unsigned int rap_group_sample = 0;
2413 int rap_group_present = sc->rap_group_count && sc->rap_group;
2414 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2416 current_dts -= sc->dts_shift;
2418 if (!sc->sample_count || st->nb_index_entries)
2420 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2422 if (av_reallocp_array(&st->index_entries,
2423 st->nb_index_entries + sc->sample_count,
2424 sizeof(*st->index_entries)) < 0) {
2425 st->nb_index_entries = 0;
2428 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2430 for (i = 0; i < sc->chunk_count; i++) {
2431 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2432 current_offset = sc->chunk_offsets[i];
2433 while (stsc_index + 1 < sc->stsc_count &&
2434 i + 1 == sc->stsc_data[stsc_index + 1].first)
2437 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2438 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2439 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2440 sc->stsz_sample_size = sc->sample_size;
2442 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2443 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2444 sc->stsz_sample_size = sc->sample_size;
2447 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2449 if (current_sample >= sc->sample_count) {
2450 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2454 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2456 if (stss_index + 1 < sc->keyframe_count)
2458 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2460 if (stps_index + 1 < sc->stps_count)
2463 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2464 if (sc->rap_group[rap_group_index].index > 0)
2466 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2467 rap_group_sample = 0;
2471 if (sc->keyframe_absent
2473 && !rap_group_present
2474 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2478 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2479 if (sc->pseudo_stream_id == -1 ||
2480 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2481 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2482 e->pos = current_offset;
2483 e->timestamp = current_dts;
2484 e->size = sample_size;
2485 e->min_distance = distance;
2486 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2487 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2488 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2489 current_offset, current_dts, sample_size, distance, keyframe);
2490 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2491 ff_rfps_add_frame(mov->fc, st, current_dts);
2494 current_offset += sample_size;
2495 stream_size += sample_size;
2496 current_dts += sc->stts_data[stts_index].duration;
2500 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2506 if (st->duration > 0)
2507 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2509 unsigned chunk_samples, total = 0;
2511 // compute total chunk count
2512 for (i = 0; i < sc->stsc_count; i++) {
2513 unsigned count, chunk_count;
2515 chunk_samples = sc->stsc_data[i].count;
2516 if (i != sc->stsc_count - 1 &&
2517 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2518 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2522 if (sc->samples_per_frame >= 160) { // gsm
2523 count = chunk_samples / sc->samples_per_frame;
2524 } else if (sc->samples_per_frame > 1) {
2525 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2526 count = (chunk_samples+samples-1) / samples;
2528 count = (chunk_samples+1023) / 1024;
2531 if (i < sc->stsc_count - 1)
2532 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2534 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2535 total += chunk_count * count;
2538 av_dlog(mov->fc, "chunk count %d\n", total);
2539 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2541 if (av_reallocp_array(&st->index_entries,
2542 st->nb_index_entries + total,
2543 sizeof(*st->index_entries)) < 0) {
2544 st->nb_index_entries = 0;
2547 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2550 for (i = 0; i < sc->chunk_count; i++) {
2551 current_offset = sc->chunk_offsets[i];
2552 if (stsc_index + 1 < sc->stsc_count &&
2553 i + 1 == sc->stsc_data[stsc_index + 1].first)
2555 chunk_samples = sc->stsc_data[stsc_index].count;
2557 while (chunk_samples > 0) {
2559 unsigned size, samples;
2561 if (sc->samples_per_frame >= 160) { // gsm
2562 samples = sc->samples_per_frame;
2563 size = sc->bytes_per_frame;
2565 if (sc->samples_per_frame > 1) {
2566 samples = FFMIN((1024 / sc->samples_per_frame)*
2567 sc->samples_per_frame, chunk_samples);
2568 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2570 samples = FFMIN(1024, chunk_samples);
2571 size = samples * sc->sample_size;
2575 if (st->nb_index_entries >= total) {
2576 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2579 e = &st->index_entries[st->nb_index_entries++];
2580 e->pos = current_offset;
2581 e->timestamp = current_dts;
2583 e->min_distance = 0;
2584 e->flags = AVINDEX_KEYFRAME;
2585 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2586 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2589 current_offset += size;
2590 current_dts += samples;
2591 chunk_samples -= samples;
2597 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2598 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2600 /* try relative path, we do not try the absolute because it can leak information about our
2601 system to an attacker */
2602 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2603 char filename[1025];
2604 const char *src_path;
2607 /* find a source dir */
2608 src_path = strrchr(src, '/');
2614 /* find a next level down to target */
2615 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2616 if (ref->path[l] == '/') {
2617 if (i == ref->nlvl_to - 1)
2623 /* compose filename if next level down to target was found */
2624 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2625 memcpy(filename, src, src_path - src);
2626 filename[src_path - src] = 0;
2628 for (i = 1; i < ref->nlvl_from; i++)
2629 av_strlcat(filename, "../", sizeof(filename));
2631 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
2632 if (!use_absolute_path)
2633 if(strstr(ref->path + l + 1, "..") || ref->nlvl_from > 1)
2634 return AVERROR(ENOENT);
2636 if (strlen(filename) + 1 == sizeof(filename))
2637 return AVERROR(ENOENT);
2638 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2641 } else if (use_absolute_path) {
2642 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2643 "this is a possible security issue\n");
2644 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2648 return AVERROR(ENOENT);
2651 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2653 if (sc->time_scale <= 0) {
2654 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2655 sc->time_scale = c->time_scale;
2656 if (sc->time_scale <= 0)
2661 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2664 MOVStreamContext *sc;
2667 st = avformat_new_stream(c->fc, NULL);
2668 if (!st) return AVERROR(ENOMEM);
2669 st->id = c->fc->nb_streams;
2670 sc = av_mallocz(sizeof(MOVStreamContext));
2671 if (!sc) return AVERROR(ENOMEM);
2674 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2675 sc->ffindex = st->index;
2677 if ((ret = mov_read_default(c, pb, atom)) < 0)
2681 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2682 (!sc->sample_size && !sc->sample_count))) {
2683 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2688 fix_timescale(c, sc);
2690 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2692 mov_build_index(c, st);
2694 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2695 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2696 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2697 c->use_absolute_path, c->fc) < 0)
2698 av_log(c->fc, AV_LOG_ERROR,
2699 "stream %d, error opening alias: path='%s', dir='%s', "
2700 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2701 st->index, dref->path, dref->dir, dref->filename,
2702 dref->volume, dref->nlvl_from, dref->nlvl_to);
2705 sc->pb_is_copied = 1;
2708 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2709 if (!st->sample_aspect_ratio.num && st->codec->width && st->codec->height &&
2710 sc->height && sc->width &&
2711 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2712 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2713 ((double)st->codec->width * sc->height), INT_MAX);
2716 #if FF_API_R_FRAME_RATE
2717 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2718 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2719 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2723 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2724 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2725 TAG_IS_AVCI(st->codec->codec_tag)) {
2726 ret = ff_generate_avci_extradata(st);
2731 switch (st->codec->codec_id) {
2732 #if CONFIG_H261_DECODER
2733 case AV_CODEC_ID_H261:
2735 #if CONFIG_H263_DECODER
2736 case AV_CODEC_ID_H263:
2738 #if CONFIG_MPEG4_DECODER
2739 case AV_CODEC_ID_MPEG4:
2741 st->codec->width = 0; /* let decoder init width/height */
2742 st->codec->height= 0;
2746 /* Do not need those anymore. */
2747 av_freep(&sc->chunk_offsets);
2748 av_freep(&sc->stsc_data);
2749 av_freep(&sc->sample_sizes);
2750 av_freep(&sc->keyframes);
2751 av_freep(&sc->stts_data);
2752 av_freep(&sc->stps_data);
2753 av_freep(&sc->elst_data);
2754 av_freep(&sc->rap_group);
2759 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2762 c->itunes_metadata = 1;
2763 ret = mov_read_default(c, pb, atom);
2764 c->itunes_metadata = 0;
2768 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2770 int64_t end = avio_tell(pb) + size;
2771 uint8_t *key = NULL, *val = NULL;
2774 MOVStreamContext *sc;
2776 if (c->fc->nb_streams < 1)
2778 st = c->fc->streams[c->fc->nb_streams-1];
2781 for (i = 0; i < 2; i++) {
2785 if (end - avio_tell(pb) <= 12)
2788 len = avio_rb32(pb);
2789 tag = avio_rl32(pb);
2790 avio_skip(pb, 4); // flags
2792 if (len < 12 || len - 12 > end - avio_tell(pb))
2796 if (tag == MKTAG('n', 'a', 'm', 'e'))
2798 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2805 *p = av_malloc(len + 1);
2808 avio_read(pb, *p, len);
2813 if (strcmp(key, "iTunSMPB") == 0) {
2814 int priming, remainder, samples;
2815 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2816 if(priming>0 && priming<16384)
2817 sc->start_pad = priming;
2820 if (strcmp(key, "cdec") != 0) {
2821 av_dict_set(&c->fc->metadata, key, val,
2822 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2827 avio_seek(pb, end, SEEK_SET);
2833 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2835 int64_t end = avio_tell(pb) + atom.size;
2841 len = avio_rb32(pb);
2842 tag = avio_rl32(pb);
2844 if (len > atom.size)
2847 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2848 uint8_t domain[128];
2851 avio_skip(pb, 4); // flags
2854 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2855 avio_skip(pb, len - domain_len);
2856 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2860 av_log(c->fc, AV_LOG_VERBOSE,
2861 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2865 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2867 while (atom.size > 8) {
2868 uint32_t tag = avio_rl32(pb);
2870 if (tag == MKTAG('h','d','l','r')) {
2871 avio_seek(pb, -8, SEEK_CUR);
2873 return mov_read_default(c, pb, atom);
2879 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2884 int display_matrix[3][3];
2886 MOVStreamContext *sc;
2890 if (c->fc->nb_streams < 1)
2892 st = c->fc->streams[c->fc->nb_streams-1];
2895 version = avio_r8(pb);
2896 flags = avio_rb24(pb);
2897 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2903 avio_rb32(pb); /* creation time */
2904 avio_rb32(pb); /* modification time */
2906 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2907 avio_rb32(pb); /* reserved */
2909 /* highlevel (considering edits) duration in movie timebase */
2910 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2911 avio_rb32(pb); /* reserved */
2912 avio_rb32(pb); /* reserved */
2914 avio_rb16(pb); /* layer */
2915 avio_rb16(pb); /* alternate group */
2916 avio_rb16(pb); /* volume */
2917 avio_rb16(pb); /* reserved */
2919 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2920 // they're kept in fixed point format through all calculations
2921 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2922 // side data, but the scale factor is not needed to calculate aspect ratio
2923 for (i = 0; i < 3; i++) {
2924 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2925 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2926 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2929 width = avio_rb32(pb); // 16.16 fixed point track width
2930 height = avio_rb32(pb); // 16.16 fixed point track height
2931 sc->width = width >> 16;
2932 sc->height = height >> 16;
2934 // save the matrix and add rotate metadata when it is not the default
2936 if (display_matrix[0][0] != (1 << 16) ||
2937 display_matrix[1][1] != (1 << 16) ||
2938 display_matrix[2][2] != (1 << 30) ||
2939 display_matrix[0][1] || display_matrix[0][2] ||
2940 display_matrix[1][0] || display_matrix[1][2] ||
2941 display_matrix[2][0] || display_matrix[2][1]) {
2945 av_freep(&sc->display_matrix);
2946 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2947 if (!sc->display_matrix)
2948 return AVERROR(ENOMEM);
2950 for (i = 0; i < 3; i++)
2951 for (j = 0; j < 3; j++)
2952 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2954 rotate = av_display_rotation_get(sc->display_matrix);
2955 if (!isnan(rotate)) {
2956 char rotate_buf[64];
2958 if (rotate < 0) // for backward compatibility
2960 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2961 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2965 // transform the display width/height according to the matrix
2966 // to keep the same scale, use [width height 1<<16]
2967 if (width && height && sc->display_matrix) {
2968 double disp_transform[2];
2970 #define SQR(a) ((a)*(double)(a))
2971 for (i = 0; i < 2; i++)
2972 disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
2974 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
2975 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
2976 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
2977 st->sample_aspect_ratio = av_d2q(
2978 disp_transform[0] / disp_transform[1],
2984 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2986 MOVFragment *frag = &c->fragment;
2987 MOVTrackExt *trex = NULL;
2988 MOVFragmentIndex* index = NULL;
2989 int flags, track_id, i;
2991 avio_r8(pb); /* version */
2992 flags = avio_rb24(pb);
2994 track_id = avio_rb32(pb);
2996 return AVERROR_INVALIDDATA;
2997 frag->track_id = track_id;
2998 for (i = 0; i < c->trex_count; i++)
2999 if (c->trex_data[i].track_id == frag->track_id) {
3000 trex = &c->trex_data[i];
3004 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3005 return AVERROR_INVALIDDATA;
3007 for (i = 0; i < c->fragment_index_count; i++) {
3008 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3009 if (candidate->track_id == frag->track_id) {
3010 av_log(c->fc, AV_LOG_DEBUG,
3011 "found fragment index for track %u\n", frag->track_id);
3017 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3018 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3019 frag->moof_offset : frag->implicit_offset;
3020 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3022 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3023 avio_rb32(pb) : trex->duration;
3024 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3025 avio_rb32(pb) : trex->size;
3026 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3027 avio_rb32(pb) : trex->flags;
3028 frag->time = AV_NOPTS_VALUE;
3031 for (i = index->current_item; i < index->item_count; i++) {
3032 if (frag->implicit_offset == index->items[i].moof_offset) {
3033 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3034 "for track %u and moof_offset %"PRId64"\n",
3035 frag->track_id, index->items[i].moof_offset);
3036 frag->time = index->items[i].time;
3037 index->current_item = i + 1;
3042 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
3043 "but it doesn't have an (in-order) entry for moof_offset "
3044 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3047 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
3051 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3053 c->chapter_track = avio_rb32(pb);
3057 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3062 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3063 return AVERROR_INVALIDDATA;
3064 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3065 sizeof(*c->trex_data))) < 0) {
3070 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3072 trex = &c->trex_data[c->trex_count++];
3073 avio_r8(pb); /* version */
3074 avio_rb24(pb); /* flags */
3075 trex->track_id = avio_rb32(pb);
3076 trex->stsd_id = avio_rb32(pb);
3077 trex->duration = avio_rb32(pb);
3078 trex->size = avio_rb32(pb);
3079 trex->flags = avio_rb32(pb);
3083 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3085 MOVFragment *frag = &c->fragment;
3086 AVStream *st = NULL;
3087 MOVStreamContext *sc;
3090 for (i = 0; i < c->fc->nb_streams; i++) {
3091 if (c->fc->streams[i]->id == frag->track_id) {
3092 st = c->fc->streams[i];
3097 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3098 return AVERROR_INVALIDDATA;
3101 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3103 version = avio_r8(pb);
3104 avio_rb24(pb); /* flags */
3106 sc->track_end = avio_rb64(pb);
3108 sc->track_end = avio_rb32(pb);
3113 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3115 MOVFragment *frag = &c->fragment;
3116 AVStream *st = NULL;
3117 MOVStreamContext *sc;
3121 int data_offset = 0;
3122 unsigned entries, first_sample_flags = frag->flags;
3123 int flags, distance, i, found_keyframe = 0, err;
3125 for (i = 0; i < c->fc->nb_streams; i++) {
3126 if (c->fc->streams[i]->id == frag->track_id) {
3127 st = c->fc->streams[i];
3132 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3133 return AVERROR_INVALIDDATA;
3136 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3138 avio_r8(pb); /* version */
3139 flags = avio_rb24(pb);
3140 entries = avio_rb32(pb);
3141 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
3143 /* Always assume the presence of composition time offsets.
3144 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3145 * 1) in the initial movie, there are no samples.
3146 * 2) in the first movie fragment, there is only one sample without composition time offset.
3147 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3148 if (!sc->ctts_count && sc->sample_count)
3150 /* Complement ctts table if moov atom doesn't have ctts atom. */
3151 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3153 return AVERROR(ENOMEM);
3154 sc->ctts_data = ctts_data;
3155 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3156 sc->ctts_data[sc->ctts_count].duration = 0;
3159 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3160 return AVERROR_INVALIDDATA;
3161 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3162 sizeof(*sc->ctts_data))) < 0) {
3166 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3167 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3168 dts = sc->track_end - sc->time_offset;
3169 offset = frag->base_data_offset + data_offset;
3171 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3172 for (i = 0; i < entries && !pb->eof_reached; i++) {
3173 unsigned sample_size = frag->size;
3174 int sample_flags = i ? frag->flags : first_sample_flags;
3175 unsigned sample_duration = frag->duration;
3178 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3179 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3180 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3181 sc->ctts_data[sc->ctts_count].count = 1;
3182 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3184 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3185 if (frag->time != AV_NOPTS_VALUE) {
3186 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3187 int64_t pts = frag->time;
3188 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3189 " sc->dts_shift %d ctts.duration %d"
3190 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3191 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3192 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3193 dts = pts - sc->dts_shift;
3194 if (flags & MOV_TRUN_SAMPLE_CTS) {
3195 dts -= sc->ctts_data[sc->ctts_count].duration;
3197 dts -= sc->time_offset;
3199 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3202 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3203 ", using it for dts\n", dts);
3205 frag->time = AV_NOPTS_VALUE;
3208 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3210 else if (!found_keyframe)
3211 keyframe = found_keyframe =
3212 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3213 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3216 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3217 keyframe ? AVINDEX_KEYFRAME : 0);
3219 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3221 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3222 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3223 offset, dts, sample_size, distance, keyframe);
3225 dts += sample_duration;
3226 offset += sample_size;
3227 sc->data_size += sample_size;
3228 sc->duration_for_fps += sample_duration;
3229 sc->nb_frames_for_fps ++;
3232 if (pb->eof_reached)
3235 frag->implicit_offset = offset;
3236 st->duration = sc->track_end = dts + sc->time_offset;
3240 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3241 /* like the files created with Adobe Premiere 5.0, for samples see */
3242 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3243 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3248 return 0; /* continue */
3249 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3250 avio_skip(pb, atom.size - 4);
3253 atom.type = avio_rl32(pb);
3255 if (atom.type != MKTAG('m','d','a','t')) {
3256 avio_skip(pb, atom.size);
3259 err = mov_read_mdat(c, pb, atom);
3263 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3268 uint8_t *moov_data; /* uncompressed data */
3269 long cmov_len, moov_len;
3272 avio_rb32(pb); /* dcom atom */
3273 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3274 return AVERROR_INVALIDDATA;
3275 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3276 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3277 return AVERROR_INVALIDDATA;
3279 avio_rb32(pb); /* cmvd atom */
3280 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3281 return AVERROR_INVALIDDATA;
3282 moov_len = avio_rb32(pb); /* uncompressed size */
3283 cmov_len = atom.size - 6 * 4;
3285 cmov_data = av_malloc(cmov_len);
3287 return AVERROR(ENOMEM);
3288 moov_data = av_malloc(moov_len);
3291 return AVERROR(ENOMEM);
3293 avio_read(pb, cmov_data, cmov_len);
3294 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3295 goto free_and_return;
3296 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3297 goto free_and_return;
3298 atom.type = MKTAG('m','o','o','v');
3299 atom.size = moov_len;
3300 ret = mov_read_default(c, &ctx, atom);
3306 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3307 return AVERROR(ENOSYS);
3311 /* edit list atom */
3312 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3314 MOVStreamContext *sc;
3315 int i, edit_count, version;
3317 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3319 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3321 version = avio_r8(pb); /* version */
3322 avio_rb24(pb); /* flags */
3323 edit_count = avio_rb32(pb); /* entries */
3328 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3329 av_free(sc->elst_data);
3331 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3333 return AVERROR(ENOMEM);
3335 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3336 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3337 MOVElst *e = &sc->elst_data[i];
3340 e->duration = avio_rb64(pb);
3341 e->time = avio_rb64(pb);
3343 e->duration = avio_rb32(pb); /* segment duration */
3344 e->time = (int32_t)avio_rb32(pb); /* media time */
3346 e->rate = avio_rb32(pb) / 65536.0;
3347 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3348 e->duration, e->time, e->rate);
3355 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3357 MOVStreamContext *sc;
3359 if (c->fc->nb_streams < 1)
3360 return AVERROR_INVALIDDATA;
3361 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3362 sc->timecode_track = avio_rb32(pb);
3366 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3370 static const uint8_t uuid_isml_manifest[] = {
3371 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3372 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3375 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3376 return AVERROR_INVALIDDATA;
3378 ret = avio_read(pb, uuid, sizeof(uuid));
3381 } else if (ret != sizeof(uuid)) {
3382 return AVERROR_INVALIDDATA;
3384 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3385 uint8_t *buffer, *ptr;
3387 size_t len = atom.size - sizeof(uuid);
3390 return AVERROR_INVALIDDATA;
3392 ret = avio_skip(pb, 4); // zeroes
3395 buffer = av_mallocz(len + 1);
3397 return AVERROR(ENOMEM);
3399 ret = avio_read(pb, buffer, len);
3403 } else if (ret != len) {
3405 return AVERROR_INVALIDDATA;
3409 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3410 ptr += sizeof("systemBitrate=\"") - 1;
3411 c->bitrates_count++;
3412 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3414 c->bitrates_count = 0;
3416 return AVERROR(ENOMEM);
3419 ret = strtol(ptr, &endptr, 10);
3420 if (ret < 0 || errno || *endptr != '"') {
3421 c->bitrates[c->bitrates_count - 1] = 0;
3423 c->bitrates[c->bitrates_count - 1] = ret;
3432 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3435 uint8_t content[16];
3440 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3446 && !memcmp(content, "Anevia\x1A\x1A", 8)
3447 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3448 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3454 static const MOVParseTableEntry mov_default_parse_table[] = {
3455 { MKTAG('A','C','L','R'), mov_read_aclr },
3456 { MKTAG('A','P','R','G'), mov_read_avid },
3457 { MKTAG('A','A','L','P'), mov_read_avid },
3458 { MKTAG('A','R','E','S'), mov_read_ares },
3459 { MKTAG('a','v','s','s'), mov_read_avss },
3460 { MKTAG('c','h','p','l'), mov_read_chpl },
3461 { MKTAG('c','o','6','4'), mov_read_stco },
3462 { MKTAG('c','o','l','r'), mov_read_colr },
3463 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3464 { MKTAG('d','i','n','f'), mov_read_default },
3465 { MKTAG('D','p','x','E'), mov_read_dpxe },
3466 { MKTAG('d','r','e','f'), mov_read_dref },
3467 { MKTAG('e','d','t','s'), mov_read_default },
3468 { MKTAG('e','l','s','t'), mov_read_elst },
3469 { MKTAG('e','n','d','a'), mov_read_enda },
3470 { MKTAG('f','i','e','l'), mov_read_fiel },
3471 { MKTAG('f','t','y','p'), mov_read_ftyp },
3472 { MKTAG('g','l','b','l'), mov_read_glbl },
3473 { MKTAG('h','d','l','r'), mov_read_hdlr },
3474 { MKTAG('i','l','s','t'), mov_read_ilst },
3475 { MKTAG('j','p','2','h'), mov_read_jp2h },
3476 { MKTAG('m','d','a','t'), mov_read_mdat },
3477 { MKTAG('m','d','h','d'), mov_read_mdhd },
3478 { MKTAG('m','d','i','a'), mov_read_default },
3479 { MKTAG('m','e','t','a'), mov_read_meta },
3480 { MKTAG('m','i','n','f'), mov_read_default },
3481 { MKTAG('m','o','o','f'), mov_read_moof },
3482 { MKTAG('m','o','o','v'), mov_read_moov },
3483 { MKTAG('m','v','e','x'), mov_read_default },
3484 { MKTAG('m','v','h','d'), mov_read_mvhd },
3485 { MKTAG('S','M','I',' '), mov_read_svq3 },
3486 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3487 { MKTAG('a','v','c','C'), mov_read_glbl },
3488 { MKTAG('p','a','s','p'), mov_read_pasp },
3489 { MKTAG('s','t','b','l'), mov_read_default },
3490 { MKTAG('s','t','c','o'), mov_read_stco },
3491 { MKTAG('s','t','p','s'), mov_read_stps },
3492 { MKTAG('s','t','r','f'), mov_read_strf },
3493 { MKTAG('s','t','s','c'), mov_read_stsc },
3494 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3495 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3496 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3497 { MKTAG('s','t','t','s'), mov_read_stts },
3498 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3499 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3500 { MKTAG('t','f','d','t'), mov_read_tfdt },
3501 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3502 { MKTAG('t','r','a','k'), mov_read_trak },
3503 { MKTAG('t','r','a','f'), mov_read_default },
3504 { MKTAG('t','r','e','f'), mov_read_default },
3505 { MKTAG('t','m','c','d'), mov_read_tmcd },
3506 { MKTAG('c','h','a','p'), mov_read_chap },
3507 { MKTAG('t','r','e','x'), mov_read_trex },
3508 { MKTAG('t','r','u','n'), mov_read_trun },
3509 { MKTAG('u','d','t','a'), mov_read_default },
3510 { MKTAG('w','a','v','e'), mov_read_wave },
3511 { MKTAG('e','s','d','s'), mov_read_esds },
3512 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3513 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3514 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3515 { MKTAG('w','f','e','x'), mov_read_wfex },
3516 { MKTAG('c','m','o','v'), mov_read_cmov },
3517 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3518 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3519 { MKTAG('s','b','g','p'), mov_read_sbgp },
3520 { MKTAG('h','v','c','C'), mov_read_glbl },
3521 { MKTAG('u','u','i','d'), mov_read_uuid },
3522 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3523 { MKTAG('f','r','e','e'), mov_read_free },
3524 { MKTAG('-','-','-','-'), mov_read_custom },
3528 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3530 int64_t total_size = 0;
3534 if (c->atom_depth > 10) {
3535 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
3536 return AVERROR_INVALIDDATA;
3541 atom.size = INT64_MAX;
3542 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3543 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3546 if (atom.size >= 8) {
3547 a.size = avio_rb32(pb);
3548 a.type = avio_rl32(pb);
3549 if (a.type == MKTAG('f','r','e','e') &&
3553 uint32_t *type = (uint32_t *)buf + 1;
3554 avio_read(pb, buf, 8);
3555 avio_seek(pb, -8, SEEK_CUR);
3556 if (*type == MKTAG('m','v','h','d') ||
3557 *type == MKTAG('c','m','o','v')) {
3558 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3559 a.type = MKTAG('m','o','o','v');
3562 if (atom.type != MKTAG('r','o','o','t') &&
3563 atom.type != MKTAG('m','o','o','v'))
3565 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3567 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3574 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
3575 a.size = avio_rb64(pb) - 8;
3579 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3580 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3582 a.size = atom.size - total_size + 8;
3587 a.size = FFMIN(a.size, atom.size - total_size);
3589 for (i = 0; mov_default_parse_table[i].type; i++)
3590 if (mov_default_parse_table[i].type == a.type) {
3591 parse = mov_default_parse_table[i].parse;
3595 // container is user data
3596 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3597 atom.type == MKTAG('i','l','s','t')))
3598 parse = mov_read_udta_string;
3600 if (!parse) { /* skip leaf atoms data */
3601 avio_skip(pb, a.size);
3603 int64_t start_pos = avio_tell(pb);
3605 int err = parse(c, pb, a);
3610 if (c->found_moov && c->found_mdat &&
3611 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3612 start_pos + a.size == avio_size(pb))) {
3613 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3614 c->next_root_atom = start_pos + a.size;
3618 left = a.size - avio_tell(pb) + start_pos;
3619 if (left > 0) /* skip garbage at atom end */
3620 avio_skip(pb, left);
3621 else if (left < 0) {
3622 av_log(c->fc, AV_LOG_WARNING,
3623 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3624 (char*)&a.type, -left);
3625 avio_seek(pb, left, SEEK_CUR);
3629 total_size += a.size;
3632 if (total_size < atom.size && atom.size < 0x7ffff)
3633 avio_skip(pb, atom.size - total_size);
3639 static int mov_probe(AVProbeData *p)
3644 int moov_offset = -1;
3646 /* check file header */
3649 /* ignore invalid offset */
3650 if ((offset + 8) > (unsigned int)p->buf_size)
3652 tag = AV_RL32(p->buf + offset + 4);
3654 /* check for obvious tags */
3655 case MKTAG('m','o','o','v'):
3656 moov_offset = offset + 4;
3657 case MKTAG('m','d','a','t'):
3658 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3659 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3660 case MKTAG('f','t','y','p'):
3661 if (AV_RB32(p->buf+offset) < 8 &&
3662 (AV_RB32(p->buf+offset) != 1 ||
3663 offset + 12 > (unsigned int)p->buf_size ||
3664 AV_RB64(p->buf+offset + 8) == 0)) {
3665 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3666 } else if (tag == MKTAG('f','t','y','p') &&
3667 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
3668 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
3670 score = FFMAX(score, 5);
3672 score = AVPROBE_SCORE_MAX;
3674 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3676 /* those are more common words, so rate then a bit less */
3677 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3678 case MKTAG('w','i','d','e'):
3679 case MKTAG('f','r','e','e'):
3680 case MKTAG('j','u','n','k'):
3681 case MKTAG('p','i','c','t'):
3682 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3683 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3685 case MKTAG(0x82,0x82,0x7f,0x7d):
3686 case MKTAG('s','k','i','p'):
3687 case MKTAG('u','u','i','d'):
3688 case MKTAG('p','r','f','l'):
3689 /* if we only find those cause probedata is too small at least rate them */
3690 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3691 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3694 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3697 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3698 /* moov atom in the header - we should make sure that this is not a
3699 * MOV-packed MPEG-PS */
3700 offset = moov_offset;
3702 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3703 /* We found an actual hdlr atom */
3704 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3705 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3706 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3707 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3708 /* We found a media handler reference atom describing an
3709 * MPEG-PS-in-MOV, return a
3710 * low score to force expanding the probe window until
3711 * mpegps_probe finds what it needs */
3722 // must be done after parsing all trak because there's no order requirement
3723 static void mov_read_chapters(AVFormatContext *s)
3725 MOVContext *mov = s->priv_data;
3726 AVStream *st = NULL;
3727 MOVStreamContext *sc;
3731 for (i = 0; i < s->nb_streams; i++)
3732 if (s->streams[i]->id == mov->chapter_track) {
3737 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3741 st->discard = AVDISCARD_ALL;
3743 cur_pos = avio_tell(sc->pb);
3745 for (i = 0; i < st->nb_index_entries; i++) {
3746 AVIndexEntry *sample = &st->index_entries[i];
3747 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3752 if (end < sample->timestamp) {
3753 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3754 end = AV_NOPTS_VALUE;
3757 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3758 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3762 // the first two bytes are the length of the title
3763 len = avio_rb16(sc->pb);
3764 if (len > sample->size-2)
3766 title_len = 2*len + 1;
3767 if (!(title = av_mallocz(title_len)))
3770 // The samples could theoretically be in any encoding if there's an encd
3771 // atom following, but in practice are only utf-8 or utf-16, distinguished
3772 // instead by the presence of a BOM
3776 ch = avio_rb16(sc->pb);
3778 avio_get_str16be(sc->pb, len, title, title_len);
3779 else if (ch == 0xfffe)
3780 avio_get_str16le(sc->pb, len, title, title_len);
3783 if (len == 1 || len == 2)
3786 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3790 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3794 avio_seek(sc->pb, cur_pos, SEEK_SET);
3797 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3798 uint32_t value, int flags)
3801 char buf[AV_TIMECODE_STR_SIZE];
3802 AVRational rate = {st->codec->time_base.den,
3803 st->codec->time_base.num};
3804 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3807 av_dict_set(&st->metadata, "timecode",
3808 av_timecode_make_string(&tc, buf, value), 0);
3812 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3814 MOVStreamContext *sc = st->priv_data;
3816 int64_t cur_pos = avio_tell(sc->pb);
3819 if (!st->nb_index_entries)
3822 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3823 value = avio_rb32(s->pb);
3825 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3826 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3827 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3829 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3830 * not the case) and thus assume "frame number format" instead of QT one.
3831 * No sample with tmcd track can be found with a QT timecode at the moment,
3832 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3834 parse_timecode_in_framenum_format(s, st, value, flags);
3836 avio_seek(sc->pb, cur_pos, SEEK_SET);
3840 static int mov_read_close(AVFormatContext *s)
3842 MOVContext *mov = s->priv_data;
3845 for (i = 0; i < s->nb_streams; i++) {
3846 AVStream *st = s->streams[i];
3847 MOVStreamContext *sc = st->priv_data;
3849 av_freep(&sc->ctts_data);
3850 for (j = 0; j < sc->drefs_count; j++) {
3851 av_freep(&sc->drefs[j].path);
3852 av_freep(&sc->drefs[j].dir);
3854 av_freep(&sc->drefs);
3856 sc->drefs_count = 0;
3858 if (!sc->pb_is_copied)
3859 avio_closep(&sc->pb);
3862 av_freep(&sc->chunk_offsets);
3863 av_freep(&sc->stsc_data);
3864 av_freep(&sc->sample_sizes);
3865 av_freep(&sc->keyframes);
3866 av_freep(&sc->stts_data);
3867 av_freep(&sc->stps_data);
3868 av_freep(&sc->elst_data);
3869 av_freep(&sc->rap_group);
3870 av_freep(&sc->display_matrix);
3873 if (mov->dv_demux) {
3874 avformat_free_context(mov->dv_fctx);
3875 mov->dv_fctx = NULL;
3878 av_freep(&mov->trex_data);
3879 av_freep(&mov->bitrates);
3881 for (i = 0; i < mov->fragment_index_count; i++) {
3882 MOVFragmentIndex* index = mov->fragment_index_data[i];
3883 av_freep(&index->items);
3884 av_freep(&mov->fragment_index_data[i]);
3886 av_freep(&mov->fragment_index_data);
3891 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3895 for (i = 0; i < s->nb_streams; i++) {
3896 AVStream *st = s->streams[i];
3897 MOVStreamContext *sc = st->priv_data;
3899 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3900 sc->timecode_track == tmcd_id)
3906 /* look for a tmcd track not referenced by any video track, and export it globally */
3907 static void export_orphan_timecode(AVFormatContext *s)
3911 for (i = 0; i < s->nb_streams; i++) {
3912 AVStream *st = s->streams[i];
3914 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3915 !tmcd_is_referenced(s, i + 1)) {
3916 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3918 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3925 static int read_tfra(MOVContext *mov, AVIOContext *f)
3927 MOVFragmentIndex* index = NULL;
3928 int version, fieldlength, i, j;
3929 int64_t pos = avio_tell(f);
3930 uint32_t size = avio_rb32(f);
3933 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3936 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3937 index = av_mallocz(sizeof(MOVFragmentIndex));
3939 return AVERROR(ENOMEM);
3942 tmp = av_realloc_array(mov->fragment_index_data,
3943 mov->fragment_index_count + 1,
3944 sizeof(MOVFragmentIndex*));
3947 return AVERROR(ENOMEM);
3949 mov->fragment_index_data = tmp;
3950 mov->fragment_index_data[mov->fragment_index_count++] = index;
3952 version = avio_r8(f);
3954 index->track_id = avio_rb32(f);
3955 fieldlength = avio_rb32(f);
3956 index->item_count = avio_rb32(f);
3957 index->items = av_mallocz_array(
3958 index->item_count, sizeof(MOVFragmentIndexItem));
3959 if (!index->items) {
3960 index->item_count = 0;
3961 return AVERROR(ENOMEM);
3963 for (i = 0; i < index->item_count; i++) {
3964 int64_t time, offset;
3966 time = avio_rb64(f);
3967 offset = avio_rb64(f);
3969 time = avio_rb32(f);
3970 offset = avio_rb32(f);
3972 index->items[i].time = time;
3973 index->items[i].moof_offset = offset;
3974 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3976 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3978 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3982 avio_seek(f, pos + size, SEEK_SET);
3986 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3988 int64_t stream_size = avio_size(f);
3989 int64_t original_pos = avio_tell(f);
3993 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
3997 mfra_size = avio_rb32(f);
3998 if (mfra_size < 0 || mfra_size > stream_size) {
3999 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4002 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4006 if (avio_rb32(f) != mfra_size) {
4007 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4010 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4011 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4014 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4016 ret = read_tfra(c, f);
4022 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4024 av_log(c->fc, AV_LOG_ERROR,
4025 "failed to seek back after looking for mfra\n");
4031 static int mov_read_header(AVFormatContext *s)
4033 MOVContext *mov = s->priv_data;
4034 AVIOContext *pb = s->pb;
4036 MOVAtom atom = { AV_RL32("root") };
4040 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4042 atom.size = avio_size(pb);
4044 atom.size = INT64_MAX;
4046 /* check MOV header */
4048 if (mov->moov_retry)
4049 avio_seek(pb, 0, SEEK_SET);
4050 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4051 av_log(s, AV_LOG_ERROR, "error reading header\n");
4055 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4056 if (!mov->found_moov) {
4057 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4059 return AVERROR_INVALIDDATA;
4061 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4064 if (mov->chapter_track > 0)
4065 mov_read_chapters(s);
4066 for (i = 0; i < s->nb_streams; i++)
4067 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
4068 mov_read_timecode_track(s, s->streams[i]);
4071 /* copy timecode metadata from tmcd tracks to the related video streams */
4072 for (i = 0; i < s->nb_streams; i++) {
4073 AVStream *st = s->streams[i];
4074 MOVStreamContext *sc = st->priv_data;
4075 if (sc->timecode_track > 0) {
4076 AVDictionaryEntry *tcr;
4077 int tmcd_st_id = -1;
4079 for (j = 0; j < s->nb_streams; j++)
4080 if (s->streams[j]->id == sc->timecode_track)
4083 if (tmcd_st_id < 0 || tmcd_st_id == i)
4085 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4087 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4090 export_orphan_timecode(s);
4092 for (i = 0; i < s->nb_streams; i++) {
4093 AVStream *st = s->streams[i];
4094 MOVStreamContext *sc = st->priv_data;
4095 fix_timescale(mov, sc);
4096 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
4097 st->skip_samples = sc->start_pad;
4099 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4100 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4101 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4102 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4103 if (st->codec->width <= 0 || st->codec->height <= 0) {
4104 st->codec->width = sc->width;
4105 st->codec->height = sc->height;
4107 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4108 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4114 if (mov->trex_data) {
4115 for (i = 0; i < s->nb_streams; i++) {
4116 AVStream *st = s->streams[i];
4117 MOVStreamContext *sc = st->priv_data;
4118 if (st->duration > 0)
4119 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4123 if (mov->use_mfra_for > 0) {
4124 for (i = 0; i < s->nb_streams; i++) {
4125 AVStream *st = s->streams[i];
4126 MOVStreamContext *sc = st->priv_data;
4127 if (sc->duration_for_fps > 0) {
4128 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4129 sc->duration_for_fps;
4134 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4135 if (mov->bitrates[i]) {
4136 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4140 ff_rfps_calculate(s);
4142 for (i = 0; i < s->nb_streams; i++) {
4143 AVStream *st = s->streams[i];
4144 MOVStreamContext *sc = st->priv_data;
4146 switch (st->codec->codec_type) {
4147 case AVMEDIA_TYPE_AUDIO:
4148 err = ff_replaygain_export(st, s->metadata);
4154 case AVMEDIA_TYPE_VIDEO:
4155 if (sc->display_matrix) {
4156 AVPacketSideData *sd, *tmp;
4158 tmp = av_realloc_array(st->side_data,
4159 st->nb_side_data + 1, sizeof(*tmp));
4161 return AVERROR(ENOMEM);
4163 st->side_data = tmp;
4166 sd = &st->side_data[st->nb_side_data - 1];
4167 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4168 sd->size = sizeof(int32_t) * 9;
4169 sd->data = (uint8_t*)sc->display_matrix;
4170 sc->display_matrix = NULL;
4179 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4181 AVIndexEntry *sample = NULL;
4182 int64_t best_dts = INT64_MAX;
4184 for (i = 0; i < s->nb_streams; i++) {
4185 AVStream *avst = s->streams[i];
4186 MOVStreamContext *msc = avst->priv_data;
4187 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4188 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4189 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4190 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4191 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4193 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4194 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4195 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4196 sample = current_sample;
4205 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4207 MOVContext *mov = s->priv_data;
4208 MOVStreamContext *sc;
4209 AVIndexEntry *sample;
4210 AVStream *st = NULL;
4214 sample = mov_find_next_sample(s, &st);
4216 mov->found_mdat = 0;
4217 if (!mov->next_root_atom)
4219 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4220 mov->next_root_atom = 0;
4221 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4224 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4228 /* must be done just before reading, to avoid infinite loop on sample */
4229 sc->current_sample++;
4231 if (mov->next_root_atom) {
4232 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4233 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4236 if (st->discard != AVDISCARD_ALL) {
4237 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4238 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4239 sc->ffindex, sample->pos);
4240 return AVERROR_INVALIDDATA;
4242 ret = av_get_packet(sc->pb, pkt, sample->size);
4245 if (sc->has_palette) {
4248 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4250 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4252 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4253 sc->has_palette = 0;
4256 #if CONFIG_DV_DEMUXER
4257 if (mov->dv_demux && sc->dv_audio_container) {
4258 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4259 av_freep(&pkt->data);
4261 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4268 pkt->stream_index = sc->ffindex;
4269 pkt->dts = sample->timestamp;
4270 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4271 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4272 /* update ctts context */
4274 if (sc->ctts_index < sc->ctts_count &&
4275 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4277 sc->ctts_sample = 0;
4280 pkt->dts = AV_NOPTS_VALUE;
4282 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4283 st->index_entries[sc->current_sample].timestamp : st->duration;
4284 pkt->duration = next_dts - pkt->dts;
4285 pkt->pts = pkt->dts;
4287 if (st->discard == AVDISCARD_ALL)
4289 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4290 pkt->pos = sample->pos;
4291 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4292 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4296 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4298 MOVStreamContext *sc = st->priv_data;
4299 int sample, time_sample;
4302 sample = av_index_search_timestamp(st, timestamp, flags);
4303 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4304 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4306 if (sample < 0) /* not sure what to do */
4307 return AVERROR_INVALIDDATA;
4308 sc->current_sample = sample;
4309 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4310 /* adjust ctts index */
4311 if (sc->ctts_data) {
4313 for (i = 0; i < sc->ctts_count; i++) {
4314 int next = time_sample + sc->ctts_data[i].count;
4315 if (next > sc->current_sample) {
4317 sc->ctts_sample = sc->current_sample - time_sample;
4326 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4328 MOVContext *mc = s->priv_data;
4333 if (stream_index >= s->nb_streams)
4334 return AVERROR_INVALIDDATA;
4336 st = s->streams[stream_index];
4337 sample = mov_seek_stream(s, st, sample_time, flags);
4341 if (mc->seek_individually) {
4342 /* adjust seek timestamp to found sample timestamp */
4343 int64_t seek_timestamp = st->index_entries[sample].timestamp;
4345 for (i = 0; i < s->nb_streams; i++) {
4347 MOVStreamContext *sc = s->streams[i]->priv_data;
4349 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4351 if (stream_index == i)
4354 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4355 mov_seek_stream(s, st, timestamp, flags);
4358 for (i = 0; i < s->nb_streams; i++) {
4359 MOVStreamContext *sc;
4362 sc->current_sample = 0;
4365 MOVStreamContext *sc;
4366 AVIndexEntry *entry = mov_find_next_sample(s, &st);
4368 return AVERROR_INVALIDDATA;
4370 if (sc->ffindex == stream_index && sc->current_sample == sample)
4372 sc->current_sample++;
4378 #define OFFSET(x) offsetof(MOVContext, x)
4379 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4380 static const AVOption mov_options[] = {
4381 {"use_absolute_path",
4382 "allow using absolute path when opening alias, this is a possible security issue",
4383 OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4385 {"seek_streams_individually",
4386 "Seek each stream individually to the to the closest point",
4387 OFFSET(seek_individually), AV_OPT_TYPE_INT, { .i64 = 1 },
4389 {"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4392 "use mfra for fragment timestamps",
4393 OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4394 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
4396 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4397 FLAGS, "use_mfra_for" },
4398 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4399 FLAGS, "use_mfra_for" },
4400 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4401 FLAGS, "use_mfra_for" },
4402 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4403 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4404 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4405 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4409 static const AVClass mov_class = {
4410 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4411 .item_name = av_default_item_name,
4412 .option = mov_options,
4413 .version = LIBAVUTIL_VERSION_INT,
4416 AVInputFormat ff_mov_demuxer = {
4417 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4418 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4419 .priv_class = &mov_class,
4420 .priv_data_size = sizeof(MOVContext),
4421 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4422 .read_probe = mov_probe,
4423 .read_header = mov_read_header,
4424 .read_packet = mov_read_packet,
4425 .read_close = mov_read_close,
4426 .read_seek = mov_read_seek,
4427 .flags = AVFMT_NO_BYTE_SEEK,