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/internal.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/intfloat.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/time_internal.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/display.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/aes.h"
42 #include "libavutil/aes_ctr.h"
43 #include "libavutil/sha.h"
44 #include "libavutil/timecode.h"
45 #include "libavcodec/ac3tab.h"
46 #include "libavcodec/mpegaudiodecheader.h"
49 #include "avio_internal.h"
52 #include "libavcodec/get_bits.h"
55 #include "replaygain.h"
61 #include "qtpalette.h"
63 /* those functions parse an atom */
64 /* links atom IDs to parse functions */
65 typedef struct MOVParseTableEntry {
67 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
71 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
73 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
74 unsigned len, const char *key)
78 short current, total = 0;
79 avio_rb16(pb); // unknown
80 current = avio_rb16(pb);
82 total = avio_rb16(pb);
84 snprintf(buf, sizeof(buf), "%d", current);
86 snprintf(buf, sizeof(buf), "%d/%d", current, total);
87 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
88 av_dict_set(&c->fc->metadata, key, buf, 0);
93 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
94 unsigned len, const char *key)
96 /* bypass padding bytes */
101 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
102 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
107 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
108 unsigned len, const char *key)
110 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
111 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
116 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
117 unsigned len, const char *key)
121 avio_r8(pb); // unknown
124 if (genre < 1 || genre > ID3v1_GENRE_MAX)
126 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
127 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
132 static const uint32_t mac_to_unicode[128] = {
133 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
134 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
135 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
136 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
137 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
138 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
139 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
140 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
141 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
142 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
143 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
144 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
145 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
146 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
147 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
148 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
151 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
152 char *dst, int dstlen)
155 char *end = dst+dstlen-1;
158 for (i = 0; i < len; i++) {
159 uint8_t t, c = avio_r8(pb);
160 if (c < 0x80 && p < end)
163 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
169 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
173 MOVStreamContext *sc;
178 case 0xd: id = AV_CODEC_ID_MJPEG; break;
179 case 0xe: id = AV_CODEC_ID_PNG; break;
180 case 0x1b: id = AV_CODEC_ID_BMP; break;
182 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
187 st = avformat_new_stream(c->fc, NULL);
189 return AVERROR(ENOMEM);
190 sc = av_mallocz(sizeof(*sc));
192 return AVERROR(ENOMEM);
195 ret = av_get_packet(pb, &pkt, len);
199 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
200 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
201 id = AV_CODEC_ID_PNG;
203 id = AV_CODEC_ID_MJPEG;
207 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
209 st->attached_pic = pkt;
210 st->attached_pic.stream_index = st->index;
211 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
213 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
214 st->codecpar->codec_id = id;
220 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
222 char language[4] = { 0 };
223 char buf[200], place[100];
224 uint16_t langcode = 0;
225 double longitude, latitude, altitude;
226 const char *key = "location";
228 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
229 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
230 return AVERROR_INVALIDDATA;
233 avio_skip(pb, 4); // version+flags
234 langcode = avio_rb16(pb);
235 ff_mov_lang_to_iso639(langcode, language);
238 len -= avio_get_str(pb, len, place, sizeof(place));
240 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
241 return AVERROR_INVALIDDATA;
243 avio_skip(pb, 1); // role
247 av_log(c->fc, AV_LOG_ERROR,
248 "loci too short (%u bytes left, need at least %d)\n", len, 12);
249 return AVERROR_INVALIDDATA;
251 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
252 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
253 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
255 // Try to output in the same format as the ?xyz field
256 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
258 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
259 av_strlcatf(buf, sizeof(buf), "/%s", place);
261 if (*language && strcmp(language, "und")) {
263 snprintf(key2, sizeof(key2), "%s-%s", key, language);
264 av_dict_set(&c->fc->metadata, key2, buf, 0);
266 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
267 return av_dict_set(&c->fc->metadata, key, buf, 0);
270 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
273 char key2[32], language[4] = {0};
275 const char *key = NULL;
276 uint16_t langcode = 0;
277 uint32_t data_type = 0, str_size, str_size_alloc;
278 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
283 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
284 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
285 case MKTAG( 'X','M','P','_'):
286 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
287 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
288 case MKTAG( 'a','k','I','D'): key = "account_type";
289 parse = mov_metadata_int8_no_padding; break;
290 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
291 case MKTAG( 'c','a','t','g'): key = "category"; break;
292 case MKTAG( 'c','p','i','l'): key = "compilation";
293 parse = mov_metadata_int8_no_padding; break;
294 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
295 case MKTAG( 'd','e','s','c'): key = "description"; break;
296 case MKTAG( 'd','i','s','k'): key = "disc";
297 parse = mov_metadata_track_or_disc_number; break;
298 case MKTAG( 'e','g','i','d'): key = "episode_uid";
299 parse = mov_metadata_int8_no_padding; break;
300 case MKTAG( 'g','n','r','e'): key = "genre";
301 parse = mov_metadata_gnre; break;
302 case MKTAG( 'h','d','v','d'): key = "hd_video";
303 parse = mov_metadata_int8_no_padding; break;
304 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
305 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
306 case MKTAG( 'l','o','c','i'):
307 return mov_metadata_loci(c, pb, atom.size);
308 case MKTAG( 'p','c','s','t'): key = "podcast";
309 parse = mov_metadata_int8_no_padding; break;
310 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
313 case MKTAG( 'r','t','n','g'): key = "rating";
314 parse = mov_metadata_int8_no_padding; break;
315 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
316 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
317 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
318 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
319 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
320 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
321 case MKTAG( 's','t','i','k'): key = "media_type";
322 parse = mov_metadata_int8_no_padding; break;
323 case MKTAG( 't','r','k','n'): key = "track";
324 parse = mov_metadata_track_or_disc_number; break;
325 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
326 case MKTAG( 't','v','e','s'): key = "episode_sort";
327 parse = mov_metadata_int8_bypass_padding; break;
328 case MKTAG( 't','v','n','n'): key = "network"; break;
329 case MKTAG( 't','v','s','h'): key = "show"; break;
330 case MKTAG( 't','v','s','n'): key = "season_number";
331 parse = mov_metadata_int8_bypass_padding; break;
332 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
333 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
334 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
335 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
336 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
337 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
338 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
339 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
340 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
341 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
342 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
343 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
344 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
345 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
346 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
347 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
348 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
349 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
350 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
351 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
352 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
353 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
354 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
355 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
356 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
357 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
358 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
359 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
360 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
361 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
362 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
363 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
364 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
365 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
366 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
369 if (c->itunes_metadata && atom.size > 8) {
370 int data_size = avio_rb32(pb);
371 int tag = avio_rl32(pb);
372 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
373 data_type = avio_rb32(pb); // type
374 avio_rb32(pb); // unknown
375 str_size = data_size - 16;
378 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
379 int ret = mov_read_covr(c, pb, data_type, str_size);
381 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
384 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
385 uint32_t index = AV_RB32(&atom.type);
386 if (index < c->meta_keys_count) {
387 key = c->meta_keys[index];
389 av_log(c->fc, AV_LOG_WARNING,
390 "The index of 'data' is out of range: %d >= %d.\n",
391 index, c->meta_keys_count);
395 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
396 str_size = avio_rb16(pb); // string length
397 if (str_size > atom.size) {
399 avio_seek(pb, -2, SEEK_CUR);
400 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
403 langcode = avio_rb16(pb);
404 ff_mov_lang_to_iso639(langcode, language);
407 str_size = atom.size;
409 if (c->export_all && !key) {
410 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
416 if (atom.size < 0 || str_size >= INT_MAX/2)
417 return AVERROR_INVALIDDATA;
419 // Allocates enough space if data_type is a int32 or float32 number, otherwise
420 // worst-case requirement for output string in case of utf8 coded input
421 num = (data_type >= 21 && data_type <= 23);
422 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
423 str = av_mallocz(str_size_alloc);
425 return AVERROR(ENOMEM);
428 parse(c, pb, str_size, key);
430 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
431 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
432 } else if (data_type == 21) { // BE signed integer, variable size
435 val = (int8_t)avio_r8(pb);
436 else if (str_size == 2)
437 val = (int16_t)avio_rb16(pb);
438 else if (str_size == 3)
439 val = ((int32_t)(avio_rb24(pb)<<8))>>8;
440 else if (str_size == 4)
441 val = (int32_t)avio_rb32(pb);
442 if (snprintf(str, str_size_alloc, "%d", val) >= str_size_alloc) {
443 av_log(c->fc, AV_LOG_ERROR,
444 "Failed to store the number (%d) in string.\n", val);
446 return AVERROR_INVALIDDATA;
448 } else if (data_type == 22) { // BE unsigned integer, variable size
449 unsigned int val = 0;
452 else if (str_size == 2)
454 else if (str_size == 3)
456 else if (str_size == 4)
458 if (snprintf(str, str_size_alloc, "%u", val) >= str_size_alloc) {
459 av_log(c->fc, AV_LOG_ERROR,
460 "Failed to store the number (%u) in string.\n", val);
462 return AVERROR_INVALIDDATA;
464 } else if (data_type == 23 && str_size >= 4) { // BE float32
465 float val = av_int2float(avio_rb32(pb));
466 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
467 av_log(c->fc, AV_LOG_ERROR,
468 "Failed to store the float32 number (%f) in string.\n", val);
470 return AVERROR_INVALIDDATA;
473 int ret = ffio_read_size(pb, str, str_size);
480 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
481 av_dict_set(&c->fc->metadata, key, str, 0);
482 if (*language && strcmp(language, "und")) {
483 snprintf(key2, sizeof(key2), "%s-%s", key, language);
484 av_dict_set(&c->fc->metadata, key2, str, 0);
486 if (!strcmp(key, "encoder")) {
487 int major, minor, micro;
488 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
489 c->handbrake_version = 1000000*major + 1000*minor + micro;
493 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
494 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
495 key, str, (char*)&atom.type, str_size_alloc, atom.size);
501 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
504 int i, nb_chapters, str_len, version;
508 if (c->ignore_chapters)
511 if ((atom.size -= 5) < 0)
514 version = avio_r8(pb);
517 avio_rb32(pb); // ???
518 nb_chapters = avio_r8(pb);
520 for (i = 0; i < nb_chapters; i++) {
524 start = avio_rb64(pb);
525 str_len = avio_r8(pb);
527 if ((atom.size -= 9+str_len) < 0)
530 ret = ffio_read_size(pb, str, str_len);
534 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
539 #define MIN_DATA_ENTRY_BOX_SIZE 12
540 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
543 MOVStreamContext *sc;
546 if (c->fc->nb_streams < 1)
548 st = c->fc->streams[c->fc->nb_streams-1];
551 avio_rb32(pb); // version + flags
552 entries = avio_rb32(pb);
554 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
555 entries >= UINT_MAX / sizeof(*sc->drefs))
556 return AVERROR_INVALIDDATA;
560 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
562 return AVERROR(ENOMEM);
563 sc->drefs_count = entries;
565 for (i = 0; i < entries; i++) {
566 MOVDref *dref = &sc->drefs[i];
567 uint32_t size = avio_rb32(pb);
568 int64_t next = avio_tell(pb) + size - 4;
571 return AVERROR_INVALIDDATA;
573 dref->type = avio_rl32(pb);
574 avio_rb32(pb); // version + flags
575 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
577 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
578 /* macintosh alias record */
579 uint16_t volume_len, len;
585 volume_len = avio_r8(pb);
586 volume_len = FFMIN(volume_len, 27);
587 ret = ffio_read_size(pb, dref->volume, 27);
590 dref->volume[volume_len] = 0;
591 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
596 len = FFMIN(len, 63);
597 ret = ffio_read_size(pb, dref->filename, 63);
600 dref->filename[len] = 0;
601 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
605 /* read next level up_from_alias/down_to_target */
606 dref->nlvl_from = avio_rb16(pb);
607 dref->nlvl_to = avio_rb16(pb);
608 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
609 dref->nlvl_from, dref->nlvl_to);
613 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
616 type = avio_rb16(pb);
618 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
621 if (type == 2) { // absolute path
623 dref->path = av_mallocz(len+1);
625 return AVERROR(ENOMEM);
627 ret = ffio_read_size(pb, dref->path, len);
629 av_freep(&dref->path);
632 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
634 memmove(dref->path, dref->path+volume_len, len);
637 // trim string of any ending zeros
638 for (j = len - 1; j >= 0; j--) {
639 if (dref->path[j] == 0)
644 for (j = 0; j < len; j++)
645 if (dref->path[j] == ':' || dref->path[j] == 0)
647 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
648 } else if (type == 0) { // directory name
650 dref->dir = av_malloc(len+1);
652 return AVERROR(ENOMEM);
654 ret = ffio_read_size(pb, dref->dir, len);
656 av_freep(&dref->dir);
660 for (j = 0; j < len; j++)
661 if (dref->dir[j] == ':')
663 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
668 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x08%x size %d\n",
673 avio_seek(pb, next, SEEK_SET);
678 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
682 uint32_t av_unused ctype;
687 avio_r8(pb); /* version */
688 avio_rb24(pb); /* flags */
691 ctype = avio_rl32(pb);
692 type = avio_rl32(pb); /* component subtype */
694 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
695 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
697 if (c->trak_index < 0) { // meta not inside a trak
698 if (type == MKTAG('m','d','t','a')) {
699 c->found_hdlr_mdta = 1;
704 st = c->fc->streams[c->fc->nb_streams-1];
706 if (type == MKTAG('v','i','d','e'))
707 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
708 else if (type == MKTAG('s','o','u','n'))
709 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
710 else if (type == MKTAG('m','1','a',' '))
711 st->codecpar->codec_id = AV_CODEC_ID_MP2;
712 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
713 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
715 avio_rb32(pb); /* component manufacture */
716 avio_rb32(pb); /* component flags */
717 avio_rb32(pb); /* component flags mask */
719 title_size = atom.size - 24;
720 if (title_size > 0) {
721 title_str = av_malloc(title_size + 1); /* Add null terminator */
723 return AVERROR(ENOMEM);
725 ret = ffio_read_size(pb, title_str, title_size);
727 av_freep(&title_str);
730 title_str[title_size] = 0;
732 int off = (!c->isom && title_str[0] == title_size - 1);
733 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
735 av_freep(&title_str);
741 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
746 if (fc->nb_streams < 1)
748 st = fc->streams[fc->nb_streams-1];
750 avio_rb32(pb); /* version + flags */
751 ff_mp4_read_descr(fc, pb, &tag);
752 if (tag == MP4ESDescrTag) {
753 ff_mp4_parse_es_descr(pb, NULL);
755 avio_rb16(pb); /* ID */
757 ff_mp4_read_descr(fc, pb, &tag);
758 if (tag == MP4DecConfigDescrTag)
759 ff_mp4_read_dec_config_descr(fc, st, pb);
763 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
765 return ff_mov_read_esds(c->fc, pb);
768 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
771 enum AVAudioServiceType *ast;
772 int ac3info, acmod, lfeon, bsmod;
774 if (c->fc->nb_streams < 1)
776 st = c->fc->streams[c->fc->nb_streams-1];
778 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
781 return AVERROR(ENOMEM);
783 ac3info = avio_rb24(pb);
784 bsmod = (ac3info >> 14) & 0x7;
785 acmod = (ac3info >> 11) & 0x7;
786 lfeon = (ac3info >> 10) & 0x1;
787 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
788 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
790 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
792 if (st->codecpar->channels > 1 && bsmod == 0x7)
793 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
795 #if FF_API_LAVF_AVCTX
796 FF_DISABLE_DEPRECATION_WARNINGS
797 st->codec->audio_service_type = *ast;
798 FF_ENABLE_DEPRECATION_WARNINGS
804 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
807 enum AVAudioServiceType *ast;
808 int eac3info, acmod, lfeon, bsmod;
810 if (c->fc->nb_streams < 1)
812 st = c->fc->streams[c->fc->nb_streams-1];
814 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
817 return AVERROR(ENOMEM);
819 /* No need to parse fields for additional independent substreams and its
820 * associated dependent substreams since libavcodec's E-AC-3 decoder
821 * does not support them yet. */
822 avio_rb16(pb); /* data_rate and num_ind_sub */
823 eac3info = avio_rb24(pb);
824 bsmod = (eac3info >> 12) & 0x1f;
825 acmod = (eac3info >> 9) & 0x7;
826 lfeon = (eac3info >> 8) & 0x1;
827 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
829 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
830 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
832 if (st->codecpar->channels > 1 && bsmod == 0x7)
833 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
835 #if FF_API_LAVF_AVCTX
836 FF_DISABLE_DEPRECATION_WARNINGS
837 st->codec->audio_service_type = *ast;
838 FF_ENABLE_DEPRECATION_WARNINGS
844 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
846 const uint32_t ddts_size = 20;
849 uint32_t frame_duration_code = 0;
850 uint32_t channel_layout_code = 0;
853 buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
855 return AVERROR(ENOMEM);
857 if (avio_read(pb, buf, ddts_size) < ddts_size) {
859 return AVERROR_INVALIDDATA;
862 init_get_bits(&gb, buf, 8*ddts_size);
864 if (c->fc->nb_streams < 1) {
867 st = c->fc->streams[c->fc->nb_streams-1];
869 st->codecpar->sample_rate = get_bits_long(&gb, 32);
870 skip_bits_long(&gb, 32); /* max bitrate */
871 st->codecpar->bit_rate = get_bits_long(&gb, 32);
872 st->codecpar->bits_per_coded_sample = get_bits(&gb, 8);
873 frame_duration_code = get_bits(&gb, 2);
874 skip_bits(&gb, 30); /* various fields */
875 channel_layout_code = get_bits(&gb, 16);
877 st->codecpar->frame_size =
878 (frame_duration_code == 0) ? 512 :
879 (frame_duration_code == 1) ? 1024 :
880 (frame_duration_code == 2) ? 2048 :
881 (frame_duration_code == 3) ? 4096 : 0;
883 if (channel_layout_code > 0xff) {
884 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
886 st->codecpar->channel_layout =
887 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
888 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
889 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
890 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
891 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
892 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
894 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
899 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
903 if (c->fc->nb_streams < 1)
905 st = c->fc->streams[c->fc->nb_streams-1];
910 /* skip version and flags */
913 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
918 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
923 if (c->fc->nb_streams < 1)
925 st = c->fc->streams[c->fc->nb_streams-1];
927 if ((ret = ff_get_wav_header(c->fc, pb, st->codecpar, atom.size, 0)) < 0)
928 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
933 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
935 const int num = avio_rb32(pb);
936 const int den = avio_rb32(pb);
939 if (c->fc->nb_streams < 1)
941 st = c->fc->streams[c->fc->nb_streams-1];
943 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
944 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
945 av_log(c->fc, AV_LOG_WARNING,
946 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
947 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
949 } else if (den != 0) {
950 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
956 /* this atom contains actual media data */
957 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
959 if (atom.size == 0) /* wrong one (MP4) */
962 return 0; /* now go for moov */
965 #define DRM_BLOB_SIZE 56
967 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
969 uint8_t intermediate_key[20];
970 uint8_t intermediate_iv[20];
973 uint8_t file_checksum[20];
974 uint8_t calculated_checksum[20];
978 uint8_t *activation_bytes = c->activation_bytes;
979 uint8_t *fixed_key = c->audible_fixed_key;
983 sha = av_sha_alloc();
985 return AVERROR(ENOMEM);
986 c->aes_decrypt = av_aes_alloc();
987 if (!c->aes_decrypt) {
988 ret = AVERROR(ENOMEM);
992 /* drm blob processing */
993 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
994 avio_read(pb, input, DRM_BLOB_SIZE);
995 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
996 avio_read(pb, file_checksum, 20);
998 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
999 for (i = 0; i < 20; i++)
1000 av_log(sha, AV_LOG_INFO, "%02x", file_checksum[i]);
1001 av_log(c->fc, AV_LOG_INFO, "\n");
1003 /* verify activation data */
1004 if (!activation_bytes) {
1005 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
1006 ret = 0; /* allow ffprobe to continue working on .aax files */
1009 if (c->activation_bytes_size != 4) {
1010 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
1011 ret = AVERROR(EINVAL);
1015 /* verify fixed key */
1016 if (c->audible_fixed_key_size != 16) {
1017 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
1018 ret = AVERROR(EINVAL);
1022 /* AAX (and AAX+) key derivation */
1023 av_sha_init(sha, 160);
1024 av_sha_update(sha, fixed_key, 16);
1025 av_sha_update(sha, activation_bytes, 4);
1026 av_sha_final(sha, intermediate_key);
1027 av_sha_init(sha, 160);
1028 av_sha_update(sha, fixed_key, 16);
1029 av_sha_update(sha, intermediate_key, 20);
1030 av_sha_update(sha, activation_bytes, 4);
1031 av_sha_final(sha, intermediate_iv);
1032 av_sha_init(sha, 160);
1033 av_sha_update(sha, intermediate_key, 16);
1034 av_sha_update(sha, intermediate_iv, 16);
1035 av_sha_final(sha, calculated_checksum);
1036 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
1037 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
1038 ret = AVERROR_INVALIDDATA;
1041 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
1042 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
1043 for (i = 0; i < 4; i++) {
1044 // file data (in output) is stored in big-endian mode
1045 if (activation_bytes[i] != output[3 - i]) { // critical error
1046 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
1047 ret = AVERROR_INVALIDDATA;
1051 memcpy(c->file_key, output + 8, 16);
1052 memcpy(input, output + 26, 16);
1053 av_sha_init(sha, 160);
1054 av_sha_update(sha, input, 16);
1055 av_sha_update(sha, c->file_key, 16);
1056 av_sha_update(sha, fixed_key, 16);
1057 av_sha_final(sha, c->file_iv);
1065 // Audible AAX (and AAX+) bytestream decryption
1066 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1069 unsigned char iv[16];
1071 memcpy(iv, c->file_iv, 16); // iv is overwritten
1072 blocks = size >> 4; // trailing bytes are not encrypted!
1073 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1074 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1079 /* read major brand, minor version and compatible brands and store them as metadata */
1080 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1083 int comp_brand_size;
1084 char* comp_brands_str;
1085 uint8_t type[5] = {0};
1086 int ret = ffio_read_size(pb, type, 4);
1090 if (strcmp(type, "qt "))
1092 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1093 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1094 minor_ver = avio_rb32(pb); /* minor version */
1095 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1097 comp_brand_size = atom.size - 8;
1098 if (comp_brand_size < 0)
1099 return AVERROR_INVALIDDATA;
1100 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1101 if (!comp_brands_str)
1102 return AVERROR(ENOMEM);
1104 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1106 av_freep(&comp_brands_str);
1109 comp_brands_str[comp_brand_size] = 0;
1110 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1111 av_freep(&comp_brands_str);
1116 /* this atom should contain all header atoms */
1117 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1121 if (c->found_moov) {
1122 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1123 avio_skip(pb, atom.size);
1127 if ((ret = mov_read_default(c, pb, atom)) < 0)
1129 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1130 /* so we don't parse the whole file if over a network */
1132 return 0; /* now go for mdat */
1135 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1137 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1138 c->has_looked_for_mfra = 1;
1141 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1143 if ((ret = mov_read_mfra(c, pb)) < 0) {
1144 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1145 "read the mfra (may be a live ismv)\n");
1148 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1149 "seekable, can not look for mfra\n");
1152 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1153 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1154 return mov_read_default(c, pb, atom);
1157 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1161 struct tm *ptm, tmbuf;
1163 if(time >= 2082844800)
1164 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1166 ptm = gmtime_r(&timet, &tmbuf);
1168 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
1169 av_dict_set(metadata, "creation_time", buffer, 0);
1173 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1176 MOVStreamContext *sc;
1178 char language[4] = {0};
1180 int64_t creation_time;
1182 if (c->fc->nb_streams < 1)
1184 st = c->fc->streams[c->fc->nb_streams-1];
1187 if (sc->time_scale) {
1188 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1189 return AVERROR_INVALIDDATA;
1192 version = avio_r8(pb);
1194 avpriv_request_sample(c->fc, "Version %d", version);
1195 return AVERROR_PATCHWELCOME;
1197 avio_rb24(pb); /* flags */
1199 creation_time = avio_rb64(pb);
1202 creation_time = avio_rb32(pb);
1203 avio_rb32(pb); /* modification time */
1205 mov_metadata_creation_time(&st->metadata, creation_time);
1207 sc->time_scale = avio_rb32(pb);
1208 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1210 lang = avio_rb16(pb); /* language */
1211 if (ff_mov_lang_to_iso639(lang, language))
1212 av_dict_set(&st->metadata, "language", language, 0);
1213 avio_rb16(pb); /* quality */
1218 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1220 int64_t creation_time;
1221 int version = avio_r8(pb); /* version */
1222 avio_rb24(pb); /* flags */
1225 creation_time = avio_rb64(pb);
1228 creation_time = avio_rb32(pb);
1229 avio_rb32(pb); /* modification time */
1231 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1232 c->time_scale = avio_rb32(pb); /* time scale */
1234 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1236 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1237 // set the AVCodecContext duration because the duration of individual tracks
1238 // may be inaccurate
1239 if (c->time_scale > 0 && !c->trex_data)
1240 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1241 avio_rb32(pb); /* preferred scale */
1243 avio_rb16(pb); /* preferred volume */
1245 avio_skip(pb, 10); /* reserved */
1247 avio_skip(pb, 36); /* display matrix */
1249 avio_rb32(pb); /* preview time */
1250 avio_rb32(pb); /* preview duration */
1251 avio_rb32(pb); /* poster time */
1252 avio_rb32(pb); /* selection time */
1253 avio_rb32(pb); /* selection duration */
1254 avio_rb32(pb); /* current time */
1255 avio_rb32(pb); /* next track ID */
1260 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1265 if (c->fc->nb_streams < 1)
1267 st = c->fc->streams[c->fc->nb_streams-1];
1269 little_endian = avio_rb16(pb) & 0xFF;
1270 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1271 if (little_endian == 1) {
1272 switch (st->codecpar->codec_id) {
1273 case AV_CODEC_ID_PCM_S24BE:
1274 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1276 case AV_CODEC_ID_PCM_S32BE:
1277 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1279 case AV_CODEC_ID_PCM_F32BE:
1280 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1282 case AV_CODEC_ID_PCM_F64BE:
1283 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1292 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1295 char color_parameter_type[5] = { 0 };
1296 uint16_t color_primaries, color_trc, color_matrix;
1299 if (c->fc->nb_streams < 1)
1301 st = c->fc->streams[c->fc->nb_streams - 1];
1303 ret = ffio_read_size(pb, color_parameter_type, 4);
1306 if (strncmp(color_parameter_type, "nclx", 4) &&
1307 strncmp(color_parameter_type, "nclc", 4)) {
1308 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1309 color_parameter_type);
1313 color_primaries = avio_rb16(pb);
1314 color_trc = avio_rb16(pb);
1315 color_matrix = avio_rb16(pb);
1317 av_log(c->fc, AV_LOG_TRACE,
1318 "%s: pri %d trc %d matrix %d",
1319 color_parameter_type, color_primaries, color_trc, color_matrix);
1321 if (!strncmp(color_parameter_type, "nclx", 4)) {
1322 uint8_t color_range = avio_r8(pb) >> 7;
1323 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1325 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1327 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1328 /* 14496-12 references JPEG XR specs (rather than the more complete
1329 * 23001-8) so some adjusting is required */
1330 if (color_primaries >= AVCOL_PRI_FILM)
1331 color_primaries = AVCOL_PRI_UNSPECIFIED;
1332 if ((color_trc >= AVCOL_TRC_LINEAR &&
1333 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1334 color_trc >= AVCOL_TRC_BT2020_10)
1335 color_trc = AVCOL_TRC_UNSPECIFIED;
1336 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1337 color_matrix = AVCOL_SPC_UNSPECIFIED;
1338 st->codecpar->color_primaries = color_primaries;
1339 st->codecpar->color_trc = color_trc;
1340 st->codecpar->color_space = color_matrix;
1341 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1342 /* color primaries, Table 4-4 */
1343 switch (color_primaries) {
1344 case 1: st->codecpar->color_primaries = AVCOL_PRI_BT709; break;
1345 case 5: st->codecpar->color_primaries = AVCOL_PRI_SMPTE170M; break;
1346 case 6: st->codecpar->color_primaries = AVCOL_PRI_SMPTE240M; break;
1348 /* color transfer, Table 4-5 */
1349 switch (color_trc) {
1350 case 1: st->codecpar->color_trc = AVCOL_TRC_BT709; break;
1351 case 7: st->codecpar->color_trc = AVCOL_TRC_SMPTE240M; break;
1353 /* color matrix, Table 4-6 */
1354 switch (color_matrix) {
1355 case 1: st->codecpar->color_space = AVCOL_SPC_BT709; break;
1356 case 6: st->codecpar->color_space = AVCOL_SPC_BT470BG; break;
1357 case 7: st->codecpar->color_space = AVCOL_SPC_SMPTE240M; break;
1360 av_log(c->fc, AV_LOG_TRACE, "\n");
1365 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1368 unsigned mov_field_order;
1369 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1371 if (c->fc->nb_streams < 1) // will happen with jp2 files
1373 st = c->fc->streams[c->fc->nb_streams-1];
1375 return AVERROR_INVALIDDATA;
1376 mov_field_order = avio_rb16(pb);
1377 if ((mov_field_order & 0xFF00) == 0x0100)
1378 decoded_field_order = AV_FIELD_PROGRESSIVE;
1379 else if ((mov_field_order & 0xFF00) == 0x0200) {
1380 switch (mov_field_order & 0xFF) {
1381 case 0x01: decoded_field_order = AV_FIELD_TT;
1383 case 0x06: decoded_field_order = AV_FIELD_BB;
1385 case 0x09: decoded_field_order = AV_FIELD_TB;
1387 case 0x0E: decoded_field_order = AV_FIELD_BT;
1391 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1392 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1394 st->codecpar->field_order = decoded_field_order;
1399 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1402 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1403 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1404 return AVERROR_INVALIDDATA;
1405 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1406 par->extradata_size = 0;
1409 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1413 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1414 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1415 AVCodecParameters *par, uint8_t *buf)
1417 int64_t result = atom.size;
1420 AV_WB32(buf , atom.size + 8);
1421 AV_WL32(buf + 4, atom.type);
1422 err = ffio_read_size(pb, buf + 8, atom.size);
1424 par->extradata_size -= atom.size;
1426 } else if (err < atom.size) {
1427 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1428 par->extradata_size -= atom.size - err;
1431 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1435 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1436 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1437 enum AVCodecID codec_id)
1440 uint64_t original_size;
1443 if (c->fc->nb_streams < 1) // will happen with jp2 files
1445 st = c->fc->streams[c->fc->nb_streams-1];
1447 if (st->codecpar->codec_id != codec_id)
1448 return 0; /* unexpected codec_id - don't mess with extradata */
1450 original_size = st->codecpar->extradata_size;
1451 err = mov_realloc_extradata(st->codecpar, atom);
1455 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1458 return 0; // Note: this is the original behavior to ignore truncation.
1461 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1462 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1464 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1467 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1469 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1472 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1474 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1477 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1479 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1482 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1484 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1486 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1490 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1492 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1494 if (!ret && c->fc->nb_streams >= 1) {
1495 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1496 if (par->extradata_size >= 40) {
1497 par->height = AV_RB16(&par->extradata[36]);
1498 par->width = AV_RB16(&par->extradata[38]);
1504 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1506 if (c->fc->nb_streams >= 1) {
1507 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1508 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1509 par->codec_id == AV_CODEC_ID_H264 &&
1513 cid = avio_rb16(pb);
1514 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1515 if (cid == 0xd4d || cid == 0xd4e)
1518 } else if (par->codec_tag == MKTAG('A', 'V', 'd', '1') &&
1522 num = avio_rb32(pb);
1523 den = avio_rb32(pb);
1524 if (num <= 0 || den <= 0)
1526 switch (avio_rb32(pb)) {
1528 if (den >= INT_MAX / 2)
1532 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1533 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1540 return mov_read_avid(c, pb, atom);
1543 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1547 uint64_t original_size;
1548 if (c->fc->nb_streams >= 1) {
1549 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1550 if (par->codec_id == AV_CODEC_ID_H264)
1552 if (atom.size == 16) {
1553 original_size = par->extradata_size;
1554 ret = mov_realloc_extradata(par, atom);
1556 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1557 if (length == atom.size) {
1558 const uint8_t range_value = par->extradata[original_size + 19];
1559 switch (range_value) {
1561 par->color_range = AVCOL_RANGE_MPEG;
1564 par->color_range = AVCOL_RANGE_JPEG;
1567 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1570 ff_dlog(c, "color_range: %d\n", par->color_range);
1572 /* For some reason the whole atom was not added to the extradata */
1573 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1576 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1579 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1586 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1588 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1591 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1596 if (c->fc->nb_streams < 1)
1598 st = c->fc->streams[c->fc->nb_streams-1];
1600 if ((uint64_t)atom.size > (1<<30))
1601 return AVERROR_INVALIDDATA;
1603 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1604 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1605 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1606 // pass all frma atom to codec, needed at least for QDMC and QDM2
1607 av_freep(&st->codecpar->extradata);
1608 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1611 } else if (atom.size > 8) { /* to read frma, esds atoms */
1612 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1614 ret = ffio_ensure_seekback(pb, 8);
1617 buffer = avio_rb64(pb);
1619 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1620 && buffer >> 32 <= atom.size
1621 && buffer >> 32 >= 8) {
1624 } else if (!st->codecpar->extradata_size) {
1625 #define ALAC_EXTRADATA_SIZE 36
1626 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1627 if (!st->codecpar->extradata)
1628 return AVERROR(ENOMEM);
1629 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1630 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1631 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1632 AV_WB64(st->codecpar->extradata + 12, buffer);
1633 avio_read(pb, st->codecpar->extradata + 20, 16);
1634 avio_skip(pb, atom.size - 24);
1638 if ((ret = mov_read_default(c, pb, atom)) < 0)
1641 avio_skip(pb, atom.size);
1646 * This function reads atom content and puts data in extradata without tag
1647 * nor size unlike mov_read_extradata.
1649 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1654 if (c->fc->nb_streams < 1)
1656 st = c->fc->streams[c->fc->nb_streams-1];
1658 if ((uint64_t)atom.size > (1<<30))
1659 return AVERROR_INVALIDDATA;
1661 if (atom.size >= 10) {
1662 // Broken files created by legacy versions of libavformat will
1663 // wrap a whole fiel atom inside of a glbl atom.
1664 unsigned size = avio_rb32(pb);
1665 unsigned type = avio_rl32(pb);
1666 avio_seek(pb, -8, SEEK_CUR);
1667 if (type == MKTAG('f','i','e','l') && size == atom.size)
1668 return mov_read_default(c, pb, atom);
1670 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1671 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1674 av_freep(&st->codecpar->extradata);
1675 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1682 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1685 uint8_t profile_level;
1688 if (c->fc->nb_streams < 1)
1690 st = c->fc->streams[c->fc->nb_streams-1];
1692 if (atom.size >= (1<<28) || atom.size < 7)
1693 return AVERROR_INVALIDDATA;
1695 profile_level = avio_r8(pb);
1696 if ((profile_level & 0xf0) != 0xc0)
1699 avio_seek(pb, 6, SEEK_CUR);
1700 av_freep(&st->codecpar->extradata);
1701 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1709 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1710 * but can have extradata appended at the end after the 40 bytes belonging
1713 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1718 if (c->fc->nb_streams < 1)
1720 if (atom.size <= 40)
1722 st = c->fc->streams[c->fc->nb_streams-1];
1724 if ((uint64_t)atom.size > (1<<30))
1725 return AVERROR_INVALIDDATA;
1728 av_freep(&st->codecpar->extradata);
1729 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1736 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1739 MOVStreamContext *sc;
1740 unsigned int i, entries;
1742 if (c->fc->nb_streams < 1)
1744 st = c->fc->streams[c->fc->nb_streams-1];
1747 avio_r8(pb); /* version */
1748 avio_rb24(pb); /* flags */
1750 entries = avio_rb32(pb);
1755 if (sc->chunk_offsets)
1756 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1757 av_free(sc->chunk_offsets);
1758 sc->chunk_count = 0;
1759 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1760 if (!sc->chunk_offsets)
1761 return AVERROR(ENOMEM);
1762 sc->chunk_count = entries;
1764 if (atom.type == MKTAG('s','t','c','o'))
1765 for (i = 0; i < entries && !pb->eof_reached; i++)
1766 sc->chunk_offsets[i] = avio_rb32(pb);
1767 else if (atom.type == MKTAG('c','o','6','4'))
1768 for (i = 0; i < entries && !pb->eof_reached; i++)
1769 sc->chunk_offsets[i] = avio_rb64(pb);
1771 return AVERROR_INVALIDDATA;
1773 sc->chunk_count = i;
1775 if (pb->eof_reached)
1782 * Compute codec id for 'lpcm' tag.
1783 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1785 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1792 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1795 static int mov_codec_id(AVStream *st, uint32_t format)
1797 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1800 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1801 (format & 0xFFFF) == 'T' + ('S' << 8)))
1802 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1804 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1805 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1806 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1807 /* skip old ASF MPEG-4 tag */
1808 format && format != MKTAG('m','p','4','s')) {
1809 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1811 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1813 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1814 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1815 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1816 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1817 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1819 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1823 st->codecpar->codec_tag = format;
1828 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1829 AVStream *st, MOVStreamContext *sc)
1831 uint8_t codec_name[32];
1835 /* The first 16 bytes of the video sample description are already
1836 * read in ff_mov_read_stsd_entries() */
1837 stsd_start = avio_tell(pb) - 16;
1839 avio_rb16(pb); /* version */
1840 avio_rb16(pb); /* revision level */
1841 avio_rb32(pb); /* vendor */
1842 avio_rb32(pb); /* temporal quality */
1843 avio_rb32(pb); /* spatial quality */
1845 st->codecpar->width = avio_rb16(pb); /* width */
1846 st->codecpar->height = avio_rb16(pb); /* height */
1848 avio_rb32(pb); /* horiz resolution */
1849 avio_rb32(pb); /* vert resolution */
1850 avio_rb32(pb); /* data size, always 0 */
1851 avio_rb16(pb); /* frames per samples */
1853 len = avio_r8(pb); /* codec name, pascal string */
1856 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1858 avio_skip(pb, 31 - len);
1861 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1863 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1864 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1865 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1866 st->codecpar->width &= ~1;
1867 st->codecpar->height &= ~1;
1869 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1870 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1871 !memcmp(codec_name, "Sorenson H263", 13))
1872 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1874 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1876 avio_seek(pb, stsd_start, SEEK_SET);
1878 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1879 st->codecpar->bits_per_coded_sample &= 0x1F;
1880 sc->has_palette = 1;
1884 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1885 AVStream *st, MOVStreamContext *sc)
1887 int bits_per_sample, flags;
1888 uint16_t version = avio_rb16(pb);
1889 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1891 avio_rb16(pb); /* revision level */
1892 avio_rb32(pb); /* vendor */
1894 st->codecpar->channels = avio_rb16(pb); /* channel count */
1895 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1896 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1898 sc->audio_cid = avio_rb16(pb);
1899 avio_rb16(pb); /* packet size = 0 */
1901 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1903 // Read QT version 1 fields. In version 0 these do not exist.
1904 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1906 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1909 sc->samples_per_frame = avio_rb32(pb);
1910 avio_rb32(pb); /* bytes per packet */
1911 sc->bytes_per_frame = avio_rb32(pb);
1912 avio_rb32(pb); /* bytes per sample */
1913 } else if (version == 2) {
1914 avio_rb32(pb); /* sizeof struct only */
1915 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1916 st->codecpar->channels = avio_rb32(pb);
1917 avio_rb32(pb); /* always 0x7F000000 */
1918 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1920 flags = avio_rb32(pb); /* lpcm format specific flag */
1921 sc->bytes_per_frame = avio_rb32(pb);
1922 sc->samples_per_frame = avio_rb32(pb);
1923 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1924 st->codecpar->codec_id =
1925 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1928 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1929 /* can't correctly handle variable sized packet as audio unit */
1930 switch (st->codecpar->codec_id) {
1931 case AV_CODEC_ID_MP2:
1932 case AV_CODEC_ID_MP3:
1933 st->need_parsing = AVSTREAM_PARSE_FULL;
1939 if (sc->format == 0) {
1940 if (st->codecpar->bits_per_coded_sample == 8)
1941 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1942 else if (st->codecpar->bits_per_coded_sample == 16)
1943 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1946 switch (st->codecpar->codec_id) {
1947 case AV_CODEC_ID_PCM_S8:
1948 case AV_CODEC_ID_PCM_U8:
1949 if (st->codecpar->bits_per_coded_sample == 16)
1950 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1952 case AV_CODEC_ID_PCM_S16LE:
1953 case AV_CODEC_ID_PCM_S16BE:
1954 if (st->codecpar->bits_per_coded_sample == 8)
1955 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1956 else if (st->codecpar->bits_per_coded_sample == 24)
1957 st->codecpar->codec_id =
1958 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1959 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1960 else if (st->codecpar->bits_per_coded_sample == 32)
1961 st->codecpar->codec_id =
1962 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1963 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1965 /* set values for old format before stsd version 1 appeared */
1966 case AV_CODEC_ID_MACE3:
1967 sc->samples_per_frame = 6;
1968 sc->bytes_per_frame = 2 * st->codecpar->channels;
1970 case AV_CODEC_ID_MACE6:
1971 sc->samples_per_frame = 6;
1972 sc->bytes_per_frame = 1 * st->codecpar->channels;
1974 case AV_CODEC_ID_ADPCM_IMA_QT:
1975 sc->samples_per_frame = 64;
1976 sc->bytes_per_frame = 34 * st->codecpar->channels;
1978 case AV_CODEC_ID_GSM:
1979 sc->samples_per_frame = 160;
1980 sc->bytes_per_frame = 33;
1986 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
1987 if (bits_per_sample) {
1988 st->codecpar->bits_per_coded_sample = bits_per_sample;
1989 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
1993 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1994 AVStream *st, MOVStreamContext *sc,
1997 // ttxt stsd contains display flags, justification, background
1998 // color, fonts, and default styles, so fake an atom to read it
1999 MOVAtom fake_atom = { .size = size };
2000 // mp4s contains a regular esds atom
2001 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
2002 mov_read_glbl(c, pb, fake_atom);
2003 st->codecpar->width = sc->width;
2004 st->codecpar->height = sc->height;
2007 static uint32_t yuv_to_rgba(uint32_t ycbcr)
2012 y = (ycbcr >> 16) & 0xFF;
2013 cr = (ycbcr >> 8) & 0xFF;
2016 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
2017 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
2018 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
2020 return (r << 16) | (g << 8) | b;
2023 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
2025 char buf[256] = {0};
2026 uint8_t *src = st->codecpar->extradata;
2029 if (st->codecpar->extradata_size != 64)
2032 if (st->codecpar->width > 0 && st->codecpar->height > 0)
2033 snprintf(buf, sizeof(buf), "size: %dx%d\n",
2034 st->codecpar->width, st->codecpar->height);
2035 av_strlcat(buf, "palette: ", sizeof(buf));
2037 for (i = 0; i < 16; i++) {
2038 uint32_t yuv = AV_RB32(src + i * 4);
2039 uint32_t rgba = yuv_to_rgba(yuv);
2041 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2044 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2047 av_freep(&st->codecpar->extradata);
2048 st->codecpar->extradata_size = 0;
2049 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2050 if (!st->codecpar->extradata)
2051 return AVERROR(ENOMEM);
2052 st->codecpar->extradata_size = strlen(buf);
2053 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2058 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2059 AVStream *st, MOVStreamContext *sc,
2064 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2065 if ((int)size != size)
2066 return AVERROR(ENOMEM);
2068 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2072 MOVStreamContext *tmcd_ctx = st->priv_data;
2074 val = AV_RB32(st->codecpar->extradata + 4);
2075 tmcd_ctx->tmcd_flags = val;
2076 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2077 st->avg_frame_rate.den = 1;
2078 #if FF_API_LAVF_AVCTX
2079 FF_DISABLE_DEPRECATION_WARNINGS
2080 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2081 FF_ENABLE_DEPRECATION_WARNINGS
2083 /* adjust for per frame dur in counter mode */
2084 if (tmcd_ctx->tmcd_flags & 0x0008) {
2085 int timescale = AV_RB32(st->codecpar->extradata + 8);
2086 int framedur = AV_RB32(st->codecpar->extradata + 12);
2087 st->avg_frame_rate.num *= timescale;
2088 st->avg_frame_rate.den *= framedur;
2089 #if FF_API_LAVF_AVCTX
2090 FF_DISABLE_DEPRECATION_WARNINGS
2091 st->codec->time_base.den *= timescale;
2092 st->codec->time_base.num *= framedur;
2093 FF_ENABLE_DEPRECATION_WARNINGS
2097 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2098 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2099 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2100 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2101 if (str_size > 0 && size >= (int)str_size + 26) {
2102 char *reel_name = av_malloc(str_size + 1);
2104 return AVERROR(ENOMEM);
2105 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2106 reel_name[str_size] = 0; /* Add null terminator */
2107 /* don't add reel_name if emtpy string */
2108 if (*reel_name == 0) {
2111 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2118 /* other codec type, just skip (rtp, mp4s ...) */
2119 avio_skip(pb, size);
2124 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2125 AVStream *st, MOVStreamContext *sc)
2127 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2128 !st->codecpar->sample_rate && sc->time_scale > 1)
2129 st->codecpar->sample_rate = sc->time_scale;
2131 /* special codec parameters handling */
2132 switch (st->codecpar->codec_id) {
2133 #if CONFIG_DV_DEMUXER
2134 case AV_CODEC_ID_DVAUDIO:
2135 c->dv_fctx = avformat_alloc_context();
2137 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2138 return AVERROR(ENOMEM);
2140 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2142 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2143 return AVERROR(ENOMEM);
2145 sc->dv_audio_container = 1;
2146 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2149 /* no ifdef since parameters are always those */
2150 case AV_CODEC_ID_QCELP:
2151 st->codecpar->channels = 1;
2152 // force sample rate for qcelp when not stored in mov
2153 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2154 st->codecpar->sample_rate = 8000;
2155 // FIXME: Why is the following needed for some files?
2156 sc->samples_per_frame = 160;
2157 if (!sc->bytes_per_frame)
2158 sc->bytes_per_frame = 35;
2160 case AV_CODEC_ID_AMR_NB:
2161 st->codecpar->channels = 1;
2162 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2163 st->codecpar->sample_rate = 8000;
2165 case AV_CODEC_ID_AMR_WB:
2166 st->codecpar->channels = 1;
2167 st->codecpar->sample_rate = 16000;
2169 case AV_CODEC_ID_MP2:
2170 case AV_CODEC_ID_MP3:
2171 /* force type after stsd for m1a hdlr */
2172 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2174 case AV_CODEC_ID_GSM:
2175 case AV_CODEC_ID_ADPCM_MS:
2176 case AV_CODEC_ID_ADPCM_IMA_WAV:
2177 case AV_CODEC_ID_ILBC:
2178 case AV_CODEC_ID_MACE3:
2179 case AV_CODEC_ID_MACE6:
2180 case AV_CODEC_ID_QDM2:
2181 st->codecpar->block_align = sc->bytes_per_frame;
2183 case AV_CODEC_ID_ALAC:
2184 if (st->codecpar->extradata_size == 36) {
2185 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2186 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2189 case AV_CODEC_ID_AC3:
2190 case AV_CODEC_ID_EAC3:
2191 case AV_CODEC_ID_MPEG1VIDEO:
2192 case AV_CODEC_ID_VC1:
2193 st->need_parsing = AVSTREAM_PARSE_FULL;
2201 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2202 int codec_tag, int format,
2205 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2208 (codec_tag != format &&
2209 // prores is allowed to have differing data format and codec tag
2210 codec_tag != AV_RL32("apcn") && codec_tag != AV_RL32("apch") &&
2211 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2212 : codec_tag != MKTAG('j','p','e','g')))) {
2213 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2214 * export it as a separate AVStream but this needs a few changes
2215 * in the MOV demuxer, patch welcome. */
2217 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2218 avio_skip(pb, size);
2221 if ( codec_tag == AV_RL32("hvc1") ||
2222 codec_tag == AV_RL32("hev1")
2224 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
2229 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2232 MOVStreamContext *sc;
2233 int pseudo_stream_id;
2235 if (c->fc->nb_streams < 1)
2237 st = c->fc->streams[c->fc->nb_streams-1];
2240 for (pseudo_stream_id = 0;
2241 pseudo_stream_id < entries && !pb->eof_reached;
2242 pseudo_stream_id++) {
2243 //Parsing Sample description table
2245 int ret, dref_id = 1;
2246 MOVAtom a = { AV_RL32("stsd") };
2247 int64_t start_pos = avio_tell(pb);
2248 int64_t size = avio_rb32(pb); /* size */
2249 uint32_t format = avio_rl32(pb); /* data format */
2252 avio_rb32(pb); /* reserved */
2253 avio_rb16(pb); /* reserved */
2254 dref_id = avio_rb16(pb);
2255 } else if (size <= 7) {
2256 av_log(c->fc, AV_LOG_ERROR,
2257 "invalid size %"PRId64" in stsd\n", size);
2258 return AVERROR_INVALIDDATA;
2261 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2262 size - (avio_tell(pb) - start_pos)))
2265 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2266 sc->dref_id= dref_id;
2267 sc->format = format;
2269 id = mov_codec_id(st, format);
2271 av_log(c->fc, AV_LOG_TRACE,
2272 "size=%"PRId64" 4CC= %c%c%c%c/0x%08x codec_type=%d\n", size,
2273 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
2274 (format >> 24) & 0xff, format, st->codecpar->codec_type);
2276 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2277 st->codecpar->codec_id = id;
2278 mov_parse_stsd_video(c, pb, st, sc);
2279 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2280 st->codecpar->codec_id = id;
2281 mov_parse_stsd_audio(c, pb, st, sc);
2282 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2283 st->codecpar->codec_id = id;
2284 mov_parse_stsd_subtitle(c, pb, st, sc,
2285 size - (avio_tell(pb) - start_pos));
2287 ret = mov_parse_stsd_data(c, pb, st, sc,
2288 size - (avio_tell(pb) - start_pos));
2292 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2293 a.size = size - (avio_tell(pb) - start_pos);
2295 if ((ret = mov_read_default(c, pb, a)) < 0)
2297 } else if (a.size > 0)
2298 avio_skip(pb, a.size);
2300 if (sc->extradata) {
2301 int extra_size = st->codecpar->extradata_size;
2303 /* Move the current stream extradata to the stream context one. */
2304 sc->extradata_size[pseudo_stream_id] = extra_size;
2305 sc->extradata[pseudo_stream_id] = av_malloc(extra_size + AV_INPUT_BUFFER_PADDING_SIZE);
2306 if (!sc->extradata[pseudo_stream_id])
2307 return AVERROR(ENOMEM);
2308 memcpy(sc->extradata[pseudo_stream_id], st->codecpar->extradata, extra_size);
2309 av_freep(&st->codecpar->extradata);
2310 st->codecpar->extradata_size = 0;
2314 if (pb->eof_reached)
2317 return mov_finalize_stsd_codec(c, pb, st, sc);
2320 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2323 MOVStreamContext *sc;
2326 if (c->fc->nb_streams < 1)
2328 st = c->fc->streams[c->fc->nb_streams - 1];
2331 avio_r8(pb); /* version */
2332 avio_rb24(pb); /* flags */
2333 sc->stsd_count = avio_rb32(pb); /* entries */
2335 /* Prepare space for hosting multiple extradata. */
2336 sc->extradata = av_mallocz_array(sc->stsd_count, sizeof(*sc->extradata));
2338 return AVERROR(ENOMEM);
2340 sc->extradata_size = av_mallocz_array(sc->stsd_count, sizeof(*sc->extradata_size));
2341 if (!sc->extradata_size)
2342 return AVERROR(ENOMEM);
2344 ret = ff_mov_read_stsd_entries(c, pb, sc->stsd_count);
2348 /* Restore back the primary extradata. */
2349 av_freep(&st->codecpar->extradata);
2350 st->codecpar->extradata_size = sc->extradata_size[0];
2351 if (sc->extradata_size[0]) {
2352 st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
2353 if (!st->codecpar->extradata)
2354 return AVERROR(ENOMEM);
2355 memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
2361 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2364 MOVStreamContext *sc;
2365 unsigned int i, entries;
2367 if (c->fc->nb_streams < 1)
2369 st = c->fc->streams[c->fc->nb_streams-1];
2372 avio_r8(pb); /* version */
2373 avio_rb24(pb); /* flags */
2375 entries = avio_rb32(pb);
2377 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2382 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2383 av_free(sc->stsc_data);
2385 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2387 return AVERROR(ENOMEM);
2389 for (i = 0; i < entries && !pb->eof_reached; i++) {
2390 sc->stsc_data[i].first = avio_rb32(pb);
2391 sc->stsc_data[i].count = avio_rb32(pb);
2392 sc->stsc_data[i].id = avio_rb32(pb);
2397 if (pb->eof_reached)
2403 /* Compute the samples value for the stsc entry at the given index. */
2404 static inline int mov_get_stsc_samples(MOVStreamContext *sc, int index)
2408 if (index < sc->stsc_count - 1)
2409 chunk_count = sc->stsc_data[index + 1].first - sc->stsc_data[index].first;
2411 chunk_count = sc->chunk_count - (sc->stsc_data[index].first - 1);
2413 return sc->stsc_data[index].count * chunk_count;
2416 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2419 MOVStreamContext *sc;
2420 unsigned i, entries;
2422 if (c->fc->nb_streams < 1)
2424 st = c->fc->streams[c->fc->nb_streams-1];
2427 avio_rb32(pb); // version + flags
2429 entries = avio_rb32(pb);
2431 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2432 av_free(sc->stps_data);
2434 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2436 return AVERROR(ENOMEM);
2438 for (i = 0; i < entries && !pb->eof_reached; i++) {
2439 sc->stps_data[i] = avio_rb32(pb);
2440 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2445 if (pb->eof_reached)
2451 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2454 MOVStreamContext *sc;
2455 unsigned int i, entries;
2457 if (c->fc->nb_streams < 1)
2459 st = c->fc->streams[c->fc->nb_streams-1];
2462 avio_r8(pb); /* version */
2463 avio_rb24(pb); /* flags */
2465 entries = avio_rb32(pb);
2467 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2471 sc->keyframe_absent = 1;
2472 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2473 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2477 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2478 if (entries >= UINT_MAX / sizeof(int))
2479 return AVERROR_INVALIDDATA;
2480 av_freep(&sc->keyframes);
2481 sc->keyframe_count = 0;
2482 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2484 return AVERROR(ENOMEM);
2486 for (i = 0; i < entries && !pb->eof_reached; i++) {
2487 sc->keyframes[i] = avio_rb32(pb);
2488 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2491 sc->keyframe_count = i;
2493 if (pb->eof_reached)
2499 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2502 MOVStreamContext *sc;
2503 unsigned int i, entries, sample_size, field_size, num_bytes;
2508 if (c->fc->nb_streams < 1)
2510 st = c->fc->streams[c->fc->nb_streams-1];
2513 avio_r8(pb); /* version */
2514 avio_rb24(pb); /* flags */
2516 if (atom.type == MKTAG('s','t','s','z')) {
2517 sample_size = avio_rb32(pb);
2518 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2519 sc->sample_size = sample_size;
2520 sc->stsz_sample_size = sample_size;
2524 avio_rb24(pb); /* reserved */
2525 field_size = avio_r8(pb);
2527 entries = avio_rb32(pb);
2529 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2531 sc->sample_count = entries;
2535 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2536 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2537 return AVERROR_INVALIDDATA;
2542 if (entries >= (UINT_MAX - 4) / field_size)
2543 return AVERROR_INVALIDDATA;
2544 if (sc->sample_sizes)
2545 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2546 av_free(sc->sample_sizes);
2547 sc->sample_count = 0;
2548 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2549 if (!sc->sample_sizes)
2550 return AVERROR(ENOMEM);
2552 num_bytes = (entries*field_size+4)>>3;
2554 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2556 av_freep(&sc->sample_sizes);
2557 return AVERROR(ENOMEM);
2560 ret = ffio_read_size(pb, buf, num_bytes);
2562 av_freep(&sc->sample_sizes);
2567 init_get_bits(&gb, buf, 8*num_bytes);
2569 for (i = 0; i < entries && !pb->eof_reached; i++) {
2570 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2571 sc->data_size += sc->sample_sizes[i];
2574 sc->sample_count = i;
2578 if (pb->eof_reached)
2584 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2587 MOVStreamContext *sc;
2588 unsigned int i, entries;
2590 int64_t total_sample_count=0;
2592 if (c->fc->nb_streams < 1)
2594 st = c->fc->streams[c->fc->nb_streams-1];
2597 avio_r8(pb); /* version */
2598 avio_rb24(pb); /* flags */
2599 entries = avio_rb32(pb);
2601 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2602 c->fc->nb_streams-1, entries);
2605 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2606 av_free(sc->stts_data);
2608 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2610 return AVERROR(ENOMEM);
2612 for (i = 0; i < entries && !pb->eof_reached; i++) {
2613 int sample_duration;
2616 sample_count=avio_rb32(pb);
2617 sample_duration = avio_rb32(pb);
2619 if (sample_count < 0) {
2620 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2621 return AVERROR_INVALIDDATA;
2623 sc->stts_data[i].count= sample_count;
2624 sc->stts_data[i].duration= sample_duration;
2626 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2627 sample_count, sample_duration);
2631 && sample_count == 1
2632 && total_sample_count > 100
2633 && sample_duration/10 > duration / total_sample_count)
2634 sample_duration = duration / total_sample_count;
2635 duration+=(int64_t)sample_duration*sample_count;
2636 total_sample_count+=sample_count;
2641 sc->duration_for_fps += duration;
2642 sc->nb_frames_for_fps += total_sample_count;
2644 if (pb->eof_reached)
2647 st->nb_frames= total_sample_count;
2649 st->duration= duration;
2650 sc->track_end = duration;
2654 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2657 if (duration == INT_MIN) {
2658 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2661 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2665 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2668 MOVStreamContext *sc;
2669 unsigned int i, entries, ctts_count = 0;
2671 if (c->fc->nb_streams < 1)
2673 st = c->fc->streams[c->fc->nb_streams-1];
2676 avio_r8(pb); /* version */
2677 avio_rb24(pb); /* flags */
2678 entries = avio_rb32(pb);
2680 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2684 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2685 return AVERROR_INVALIDDATA;
2686 av_freep(&sc->ctts_data);
2687 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2689 return AVERROR(ENOMEM);
2691 for (i = 0; i < entries && !pb->eof_reached; i++) {
2692 int count =avio_rb32(pb);
2693 int duration =avio_rb32(pb);
2696 av_log(c->fc, AV_LOG_TRACE,
2697 "ignoring CTTS entry with count=%d duration=%d\n",
2702 sc->ctts_data[ctts_count].count = count;
2703 sc->ctts_data[ctts_count].duration = duration;
2706 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2709 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2710 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2711 av_freep(&sc->ctts_data);
2717 mov_update_dts_shift(sc, duration);
2720 sc->ctts_count = ctts_count;
2722 if (pb->eof_reached)
2725 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2730 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2733 MOVStreamContext *sc;
2734 unsigned int i, entries;
2736 uint32_t grouping_type;
2738 if (c->fc->nb_streams < 1)
2740 st = c->fc->streams[c->fc->nb_streams-1];
2743 version = avio_r8(pb); /* version */
2744 avio_rb24(pb); /* flags */
2745 grouping_type = avio_rl32(pb);
2746 if (grouping_type != MKTAG( 'r','a','p',' '))
2747 return 0; /* only support 'rap ' grouping */
2749 avio_rb32(pb); /* grouping_type_parameter */
2751 entries = avio_rb32(pb);
2755 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2756 av_free(sc->rap_group);
2757 sc->rap_group_count = 0;
2758 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2760 return AVERROR(ENOMEM);
2762 for (i = 0; i < entries && !pb->eof_reached; i++) {
2763 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2764 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2767 sc->rap_group_count = i;
2769 return pb->eof_reached ? AVERROR_EOF : 0;
2772 static void mov_build_index(MOVContext *mov, AVStream *st)
2774 MOVStreamContext *sc = st->priv_data;
2775 int64_t current_offset;
2776 int64_t current_dts = 0;
2777 unsigned int stts_index = 0;
2778 unsigned int stsc_index = 0;
2779 unsigned int stss_index = 0;
2780 unsigned int stps_index = 0;
2782 uint64_t stream_size = 0;
2784 if (sc->elst_count) {
2785 int i, edit_start_index = 0, unsupported = 0;
2786 int64_t empty_duration = 0; // empty duration of the first edit list entry
2787 int64_t start_time = 0; // start time of the media
2789 for (i = 0; i < sc->elst_count; i++) {
2790 const MOVElst *e = &sc->elst_data[i];
2791 if (i == 0 && e->time == -1) {
2792 /* if empty, the first entry is the start time of the stream
2793 * relative to the presentation itself */
2794 empty_duration = e->duration;
2795 edit_start_index = 1;
2796 } else if (i == edit_start_index && e->time >= 0) {
2797 start_time = e->time;
2802 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2803 "a/v desync might occur, patch welcome\n");
2805 /* adjust first dts according to edit list */
2806 if ((empty_duration || start_time) && mov->time_scale > 0) {
2808 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2809 sc->time_offset = start_time - empty_duration;
2810 current_dts = -sc->time_offset;
2811 if (sc->ctts_count>0 && sc->stts_count>0 &&
2812 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2813 /* more than 16 frames delay, dts are likely wrong
2814 this happens with files created by iMovie */
2816 st->codecpar->video_delay = 1;
2820 if (!unsupported && st->codecpar->codec_id == AV_CODEC_ID_AAC && start_time > 0)
2821 sc->start_pad = start_time;
2824 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2825 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2826 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2827 unsigned int current_sample = 0;
2828 unsigned int stts_sample = 0;
2829 unsigned int sample_size;
2830 unsigned int distance = 0;
2831 unsigned int rap_group_index = 0;
2832 unsigned int rap_group_sample = 0;
2833 int64_t last_dts = 0;
2834 int64_t dts_correction = 0;
2835 int rap_group_present = sc->rap_group_count && sc->rap_group;
2836 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2838 current_dts -= sc->dts_shift;
2839 last_dts = current_dts;
2841 if (!sc->sample_count || st->nb_index_entries)
2843 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2845 if (av_reallocp_array(&st->index_entries,
2846 st->nb_index_entries + sc->sample_count,
2847 sizeof(*st->index_entries)) < 0) {
2848 st->nb_index_entries = 0;
2851 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2853 for (i = 0; i < sc->chunk_count; i++) {
2854 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2855 current_offset = sc->chunk_offsets[i];
2856 while (stsc_index + 1 < sc->stsc_count &&
2857 i + 1 == sc->stsc_data[stsc_index + 1].first)
2860 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2861 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2862 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2863 sc->stsz_sample_size = sc->sample_size;
2865 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2866 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2867 sc->stsz_sample_size = sc->sample_size;
2870 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2872 if (current_sample >= sc->sample_count) {
2873 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2877 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2879 if (stss_index + 1 < sc->keyframe_count)
2881 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2883 if (stps_index + 1 < sc->stps_count)
2886 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2887 if (sc->rap_group[rap_group_index].index > 0)
2889 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2890 rap_group_sample = 0;
2894 if (sc->keyframe_absent
2896 && !rap_group_present
2897 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2901 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2902 if (sc->pseudo_stream_id == -1 ||
2903 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2905 if (sample_size > 0x3FFFFFFF) {
2906 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", sample_size);
2909 e = &st->index_entries[st->nb_index_entries++];
2910 e->pos = current_offset;
2911 e->timestamp = current_dts;
2912 e->size = sample_size;
2913 e->min_distance = distance;
2914 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2915 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2916 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2917 current_offset, current_dts, sample_size, distance, keyframe);
2918 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2919 ff_rfps_add_frame(mov->fc, st, current_dts);
2922 current_offset += sample_size;
2923 stream_size += sample_size;
2925 /* A negative sample duration is invalid based on the spec,
2926 * but some samples need it to correct the DTS. */
2927 if (sc->stts_data[stts_index].duration < 0) {
2928 av_log(mov->fc, AV_LOG_WARNING,
2929 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2930 sc->stts_data[stts_index].duration, stts_index,
2932 dts_correction += sc->stts_data[stts_index].duration - 1;
2933 sc->stts_data[stts_index].duration = 1;
2935 current_dts += sc->stts_data[stts_index].duration;
2936 if (!dts_correction || current_dts + dts_correction > last_dts) {
2937 current_dts += dts_correction;
2940 /* Avoid creating non-monotonous DTS */
2941 dts_correction += current_dts - last_dts - 1;
2942 current_dts = last_dts + 1;
2944 last_dts = current_dts;
2948 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2954 if (st->duration > 0)
2955 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
2957 unsigned chunk_samples, total = 0;
2959 // compute total chunk count
2960 for (i = 0; i < sc->stsc_count; i++) {
2961 unsigned count, chunk_count;
2963 chunk_samples = sc->stsc_data[i].count;
2964 if (i != sc->stsc_count - 1 &&
2965 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2966 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2970 if (sc->samples_per_frame >= 160) { // gsm
2971 count = chunk_samples / sc->samples_per_frame;
2972 } else if (sc->samples_per_frame > 1) {
2973 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2974 count = (chunk_samples+samples-1) / samples;
2976 count = (chunk_samples+1023) / 1024;
2979 if (i < sc->stsc_count - 1)
2980 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2982 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2983 total += chunk_count * count;
2986 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2987 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2989 if (av_reallocp_array(&st->index_entries,
2990 st->nb_index_entries + total,
2991 sizeof(*st->index_entries)) < 0) {
2992 st->nb_index_entries = 0;
2995 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2998 for (i = 0; i < sc->chunk_count; i++) {
2999 current_offset = sc->chunk_offsets[i];
3000 if (stsc_index + 1 < sc->stsc_count &&
3001 i + 1 == sc->stsc_data[stsc_index + 1].first)
3003 chunk_samples = sc->stsc_data[stsc_index].count;
3005 while (chunk_samples > 0) {
3007 unsigned size, samples;
3009 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
3010 avpriv_request_sample(mov->fc,
3011 "Zero bytes per frame, but %d samples per frame",
3012 sc->samples_per_frame);
3016 if (sc->samples_per_frame >= 160) { // gsm
3017 samples = sc->samples_per_frame;
3018 size = sc->bytes_per_frame;
3020 if (sc->samples_per_frame > 1) {
3021 samples = FFMIN((1024 / sc->samples_per_frame)*
3022 sc->samples_per_frame, chunk_samples);
3023 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
3025 samples = FFMIN(1024, chunk_samples);
3026 size = samples * sc->sample_size;
3030 if (st->nb_index_entries >= total) {
3031 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
3034 if (size > 0x3FFFFFFF) {
3035 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", size);
3038 e = &st->index_entries[st->nb_index_entries++];
3039 e->pos = current_offset;
3040 e->timestamp = current_dts;
3042 e->min_distance = 0;
3043 e->flags = AVINDEX_KEYFRAME;
3044 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
3045 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
3048 current_offset += size;
3049 current_dts += samples;
3050 chunk_samples -= samples;
3056 static int test_same_origin(const char *src, const char *ref) {
3066 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
3067 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
3069 if (strlen(src) == 0) {
3071 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
3072 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
3073 strlen(src_host) + 1 >= sizeof(src_host) ||
3074 strlen(ref_host) + 1 >= sizeof(ref_host)) {
3076 } else if (strcmp(src_proto, ref_proto) ||
3077 strcmp(src_auth, ref_auth) ||
3078 strcmp(src_host, ref_host) ||
3079 src_port != ref_port) {
3085 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref)
3087 /* try relative path, we do not try the absolute because it can leak information about our
3088 system to an attacker */
3089 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
3090 char filename[1025];
3091 const char *src_path;
3094 /* find a source dir */
3095 src_path = strrchr(src, '/');
3101 /* find a next level down to target */
3102 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
3103 if (ref->path[l] == '/') {
3104 if (i == ref->nlvl_to - 1)
3110 /* compose filename if next level down to target was found */
3111 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
3112 memcpy(filename, src, src_path - src);
3113 filename[src_path - src] = 0;
3115 for (i = 1; i < ref->nlvl_from; i++)
3116 av_strlcat(filename, "../", sizeof(filename));
3118 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
3119 if (!c->use_absolute_path) {
3120 int same_origin = test_same_origin(src, filename);
3123 av_log(c->fc, AV_LOG_ERROR,
3124 "Reference with mismatching origin, %s not tried for security reasons, "
3125 "set demuxer option use_absolute_path to allow it anyway\n",
3127 return AVERROR(ENOENT);
3130 if(strstr(ref->path + l + 1, "..") ||
3131 strstr(ref->path + l + 1, ":") ||
3132 (ref->nlvl_from > 1 && same_origin < 0) ||
3133 (filename[0] == '/' && src_path == src))
3134 return AVERROR(ENOENT);
3137 if (strlen(filename) + 1 == sizeof(filename))
3138 return AVERROR(ENOENT);
3139 if (!c->fc->io_open(c->fc, pb, filename, AVIO_FLAG_READ, NULL))
3142 } else if (c->use_absolute_path) {
3143 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
3144 "this is a possible security issue\n");
3145 if (!c->fc->io_open(c->fc, pb, ref->path, AVIO_FLAG_READ, NULL))
3148 av_log(c->fc, AV_LOG_ERROR,
3149 "Absolute path %s not tried for security reasons, "
3150 "set demuxer option use_absolute_path to allow absolute paths\n",
3154 return AVERROR(ENOENT);
3157 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3159 if (sc->time_scale <= 0) {
3160 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3161 sc->time_scale = c->time_scale;
3162 if (sc->time_scale <= 0)
3167 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3170 MOVStreamContext *sc;
3173 st = avformat_new_stream(c->fc, NULL);
3174 if (!st) return AVERROR(ENOMEM);
3175 st->id = c->fc->nb_streams;
3176 sc = av_mallocz(sizeof(MOVStreamContext));
3177 if (!sc) return AVERROR(ENOMEM);
3180 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
3181 sc->ffindex = st->index;
3182 c->trak_index = st->index;
3184 if ((ret = mov_read_default(c, pb, atom)) < 0)
3190 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3191 (!sc->sample_size && !sc->sample_count))) {
3192 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3197 fix_timescale(c, sc);
3199 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3201 mov_build_index(c, st);
3203 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3204 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3205 if (c->enable_drefs) {
3206 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref) < 0)
3207 av_log(c->fc, AV_LOG_ERROR,
3208 "stream %d, error opening alias: path='%s', dir='%s', "
3209 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3210 st->index, dref->path, dref->dir, dref->filename,
3211 dref->volume, dref->nlvl_from, dref->nlvl_to);
3213 av_log(c->fc, AV_LOG_WARNING,
3214 "Skipped opening external track: "
3215 "stream %d, alias: path='%s', dir='%s', "
3216 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3217 "Set enable_drefs to allow this.\n",
3218 st->index, dref->path, dref->dir, dref->filename,
3219 dref->volume, dref->nlvl_from, dref->nlvl_to);
3223 sc->pb_is_copied = 1;
3226 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3227 if (!st->sample_aspect_ratio.num && st->codecpar->width && st->codecpar->height &&
3228 sc->height && sc->width &&
3229 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
3230 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
3231 ((double)st->codecpar->width * sc->height), INT_MAX);
3234 #if FF_API_R_FRAME_RATE
3235 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3236 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3237 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3241 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3242 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
3243 TAG_IS_AVCI(st->codecpar->codec_tag)) {
3244 ret = ff_generate_avci_extradata(st);
3249 switch (st->codecpar->codec_id) {
3250 #if CONFIG_H261_DECODER
3251 case AV_CODEC_ID_H261:
3253 #if CONFIG_H263_DECODER
3254 case AV_CODEC_ID_H263:
3256 #if CONFIG_MPEG4_DECODER
3257 case AV_CODEC_ID_MPEG4:
3259 st->codecpar->width = 0; /* let decoder init width/height */
3260 st->codecpar->height= 0;
3264 // If the duration of the mp3 packets is not constant, then they could need a parser
3265 if (st->codecpar->codec_id == AV_CODEC_ID_MP3
3266 && sc->stts_count > 3
3267 && sc->stts_count*10 > st->nb_frames
3268 && sc->time_scale == st->codecpar->sample_rate) {
3269 st->need_parsing = AVSTREAM_PARSE_FULL;
3271 /* Do not need those anymore. */
3272 av_freep(&sc->chunk_offsets);
3273 av_freep(&sc->sample_sizes);
3274 av_freep(&sc->keyframes);
3275 av_freep(&sc->stts_data);
3276 av_freep(&sc->stps_data);
3277 av_freep(&sc->elst_data);
3278 av_freep(&sc->rap_group);
3283 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3286 c->itunes_metadata = 1;
3287 ret = mov_read_default(c, pb, atom);
3288 c->itunes_metadata = 0;
3292 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3301 count = avio_rb32(pb);
3302 if (count > UINT_MAX / sizeof(*c->meta_keys)) {
3303 av_log(c->fc, AV_LOG_ERROR,
3304 "The 'keys' atom with the invalid key count: %d\n", count);
3305 return AVERROR_INVALIDDATA;
3308 c->meta_keys_count = count + 1;
3309 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3311 return AVERROR(ENOMEM);
3313 for (i = 1; i <= count; ++i) {
3314 uint32_t key_size = avio_rb32(pb);
3315 uint32_t type = avio_rl32(pb);
3317 av_log(c->fc, AV_LOG_ERROR,
3318 "The key# %d in meta has invalid size: %d\n", i, key_size);
3319 return AVERROR_INVALIDDATA;
3322 if (type != MKTAG('m','d','t','a')) {
3323 avio_skip(pb, key_size);
3325 c->meta_keys[i] = av_mallocz(key_size + 1);
3326 if (!c->meta_keys[i])
3327 return AVERROR(ENOMEM);
3328 avio_read(pb, c->meta_keys[i], key_size);
3334 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3336 int64_t end = avio_tell(pb) + atom.size;
3337 uint8_t *key = NULL, *val = NULL, *mean = NULL;
3341 MOVStreamContext *sc;
3343 if (c->fc->nb_streams < 1)
3345 st = c->fc->streams[c->fc->nb_streams-1];
3348 for (i = 0; i < 3; i++) {
3352 if (end - avio_tell(pb) <= 12)
3355 len = avio_rb32(pb);
3356 tag = avio_rl32(pb);
3357 avio_skip(pb, 4); // flags
3359 if (len < 12 || len - 12 > end - avio_tell(pb))
3363 if (tag == MKTAG('m', 'e', 'a', 'n'))
3365 else if (tag == MKTAG('n', 'a', 'm', 'e'))
3367 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3374 *p = av_malloc(len + 1);
3377 ret = ffio_read_size(pb, *p, len);
3385 if (mean && key && val) {
3386 if (strcmp(key, "iTunSMPB") == 0) {
3387 int priming, remainder, samples;
3388 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3389 if(priming>0 && priming<16384)
3390 sc->start_pad = priming;
3393 if (strcmp(key, "cdec") != 0) {
3394 av_dict_set(&c->fc->metadata, key, val,
3395 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3399 av_log(c->fc, AV_LOG_VERBOSE,
3400 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3403 avio_seek(pb, end, SEEK_SET);
3410 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3412 while (atom.size > 8) {
3413 uint32_t tag = avio_rl32(pb);
3415 if (tag == MKTAG('h','d','l','r')) {
3416 avio_seek(pb, -8, SEEK_CUR);
3418 return mov_read_default(c, pb, atom);
3424 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3429 int display_matrix[3][3];
3431 MOVStreamContext *sc;
3435 if (c->fc->nb_streams < 1)
3437 st = c->fc->streams[c->fc->nb_streams-1];
3440 version = avio_r8(pb);
3441 flags = avio_rb24(pb);
3442 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3448 avio_rb32(pb); /* creation time */
3449 avio_rb32(pb); /* modification time */
3451 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3452 avio_rb32(pb); /* reserved */
3454 /* highlevel (considering edits) duration in movie timebase */
3455 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3456 avio_rb32(pb); /* reserved */
3457 avio_rb32(pb); /* reserved */
3459 avio_rb16(pb); /* layer */
3460 avio_rb16(pb); /* alternate group */
3461 avio_rb16(pb); /* volume */
3462 avio_rb16(pb); /* reserved */
3464 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3465 // they're kept in fixed point format through all calculations
3466 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3467 // side data, but the scale factor is not needed to calculate aspect ratio
3468 for (i = 0; i < 3; i++) {
3469 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3470 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3471 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
3474 width = avio_rb32(pb); // 16.16 fixed point track width
3475 height = avio_rb32(pb); // 16.16 fixed point track height
3476 sc->width = width >> 16;
3477 sc->height = height >> 16;
3479 // save the matrix and add rotate metadata when it is not the default
3481 if (display_matrix[0][0] != (1 << 16) ||
3482 display_matrix[1][1] != (1 << 16) ||
3483 display_matrix[2][2] != (1 << 30) ||
3484 display_matrix[0][1] || display_matrix[0][2] ||
3485 display_matrix[1][0] || display_matrix[1][2] ||
3486 display_matrix[2][0] || display_matrix[2][1]) {
3490 av_freep(&sc->display_matrix);
3491 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
3492 if (!sc->display_matrix)
3493 return AVERROR(ENOMEM);
3495 for (i = 0; i < 3; i++)
3496 for (j = 0; j < 3; j++)
3497 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
3499 rotate = av_display_rotation_get(sc->display_matrix);
3500 if (!isnan(rotate)) {
3501 char rotate_buf[64];
3503 if (rotate < 0) // for backward compatibility
3505 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
3506 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
3510 // transform the display width/height according to the matrix
3511 // to keep the same scale, use [width height 1<<16]
3512 if (width && height && sc->display_matrix) {
3513 double disp_transform[2];
3515 for (i = 0; i < 2; i++)
3516 disp_transform[i] = hypot(display_matrix[i][0], display_matrix[i][1]);
3518 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
3519 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
3520 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
3521 st->sample_aspect_ratio = av_d2q(
3522 disp_transform[0] / disp_transform[1],
3528 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3530 MOVFragment *frag = &c->fragment;
3531 MOVTrackExt *trex = NULL;
3532 MOVFragmentIndex* index = NULL;
3533 int flags, track_id, i, found = 0;
3535 avio_r8(pb); /* version */
3536 flags = avio_rb24(pb);
3538 track_id = avio_rb32(pb);
3540 return AVERROR_INVALIDDATA;
3541 frag->track_id = track_id;
3542 for (i = 0; i < c->trex_count; i++)
3543 if (c->trex_data[i].track_id == frag->track_id) {
3544 trex = &c->trex_data[i];
3548 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3549 return AVERROR_INVALIDDATA;
3552 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3553 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3554 frag->moof_offset : frag->implicit_offset;
3555 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3557 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3558 avio_rb32(pb) : trex->duration;
3559 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3560 avio_rb32(pb) : trex->size;
3561 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3562 avio_rb32(pb) : trex->flags;
3563 frag->time = AV_NOPTS_VALUE;
3564 for (i = 0; i < c->fragment_index_count; i++) {
3566 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3567 if (candidate->track_id == frag->track_id) {
3568 av_log(c->fc, AV_LOG_DEBUG,
3569 "found fragment index for track %u\n", frag->track_id);
3571 for (j = index->current_item; j < index->item_count; j++) {
3572 if (frag->implicit_offset == index->items[j].moof_offset) {
3573 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3574 "for track %u and moof_offset %"PRId64"\n",
3575 frag->track_id, index->items[j].moof_offset);
3576 frag->time = index->items[j].time;
3577 index->current_item = j + 1;
3586 if (index && !found) {
3587 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
3588 "it doesn't have an (in-order) entry for moof_offset "
3589 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3591 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3595 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3597 c->chapter_track = avio_rb32(pb);
3601 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3606 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3607 return AVERROR_INVALIDDATA;
3608 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3609 sizeof(*c->trex_data))) < 0) {
3614 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3616 trex = &c->trex_data[c->trex_count++];
3617 avio_r8(pb); /* version */
3618 avio_rb24(pb); /* flags */
3619 trex->track_id = avio_rb32(pb);
3620 trex->stsd_id = avio_rb32(pb);
3621 trex->duration = avio_rb32(pb);
3622 trex->size = avio_rb32(pb);
3623 trex->flags = avio_rb32(pb);
3627 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3629 MOVFragment *frag = &c->fragment;
3630 AVStream *st = NULL;
3631 MOVStreamContext *sc;
3634 for (i = 0; i < c->fc->nb_streams; i++) {
3635 if (c->fc->streams[i]->id == frag->track_id) {
3636 st = c->fc->streams[i];
3641 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3642 return AVERROR_INVALIDDATA;
3645 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3647 version = avio_r8(pb);
3648 avio_rb24(pb); /* flags */
3650 sc->track_end = avio_rb64(pb);
3652 sc->track_end = avio_rb32(pb);
3657 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3659 MOVFragment *frag = &c->fragment;
3660 AVStream *st = NULL;
3661 MOVStreamContext *sc;
3665 int data_offset = 0;
3666 unsigned entries, first_sample_flags = frag->flags;
3667 int flags, distance, i, err;
3669 for (i = 0; i < c->fc->nb_streams; i++) {
3670 if (c->fc->streams[i]->id == frag->track_id) {
3671 st = c->fc->streams[i];
3676 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3677 return AVERROR_INVALIDDATA;
3680 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3682 avio_r8(pb); /* version */
3683 flags = avio_rb24(pb);
3684 entries = avio_rb32(pb);
3685 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3687 /* Always assume the presence of composition time offsets.
3688 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3689 * 1) in the initial movie, there are no samples.
3690 * 2) in the first movie fragment, there is only one sample without composition time offset.
3691 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3692 if (!sc->ctts_count && sc->sample_count)
3694 /* Complement ctts table if moov atom doesn't have ctts atom. */
3695 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3697 return AVERROR(ENOMEM);
3698 sc->ctts_data = ctts_data;
3699 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3700 sc->ctts_data[sc->ctts_count].duration = 0;
3703 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3704 return AVERROR_INVALIDDATA;
3705 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3706 sizeof(*sc->ctts_data))) < 0) {
3710 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3711 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3712 dts = sc->track_end - sc->time_offset;
3713 offset = frag->base_data_offset + data_offset;
3715 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3716 for (i = 0; i < entries && !pb->eof_reached; i++) {
3717 unsigned sample_size = frag->size;
3718 int sample_flags = i ? frag->flags : first_sample_flags;
3719 unsigned sample_duration = frag->duration;
3722 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3723 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3724 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3725 sc->ctts_data[sc->ctts_count].count = 1;
3726 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3728 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3729 if (frag->time != AV_NOPTS_VALUE) {
3730 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3731 int64_t pts = frag->time;
3732 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3733 " sc->dts_shift %d ctts.duration %d"
3734 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3735 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3736 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3737 dts = pts - sc->dts_shift;
3738 if (flags & MOV_TRUN_SAMPLE_CTS) {
3739 dts -= sc->ctts_data[sc->ctts_count].duration;
3741 dts -= sc->time_offset;
3743 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3745 dts = frag->time - sc->time_offset;
3746 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3747 ", using it for dts\n", dts);
3749 frag->time = AV_NOPTS_VALUE;
3752 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
3756 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3757 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3760 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3761 keyframe ? AVINDEX_KEYFRAME : 0);
3763 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3765 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3766 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3767 offset, dts, sample_size, distance, keyframe);
3769 dts += sample_duration;
3770 offset += sample_size;
3771 sc->data_size += sample_size;
3772 sc->duration_for_fps += sample_duration;
3773 sc->nb_frames_for_fps ++;
3776 if (pb->eof_reached)
3779 frag->implicit_offset = offset;
3781 sc->track_end = dts + sc->time_offset;
3782 if (st->duration < sc->track_end)
3783 st->duration = sc->track_end;
3788 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3790 int64_t offset = avio_tell(pb) + atom.size, pts;
3792 unsigned i, track_id;
3793 AVStream *st = NULL;
3794 MOVStreamContext *sc;
3795 MOVFragmentIndex *index = NULL;
3796 MOVFragmentIndex **tmp;
3797 AVRational timescale;
3799 version = avio_r8(pb);
3801 avpriv_request_sample(c->fc, "sidx version %u", version);
3805 avio_rb24(pb); // flags
3807 track_id = avio_rb32(pb); // Reference ID
3808 for (i = 0; i < c->fc->nb_streams; i++) {
3809 if (c->fc->streams[i]->id == track_id) {
3810 st = c->fc->streams[i];
3815 av_log(c->fc, AV_LOG_WARNING, "could not find corresponding track id %d\n", track_id);
3821 timescale = av_make_q(1, avio_rb32(pb));
3824 pts = avio_rb32(pb);
3825 offset += avio_rb32(pb);
3827 pts = avio_rb64(pb);
3828 offset += avio_rb64(pb);
3831 avio_rb16(pb); // reserved
3833 index = av_mallocz(sizeof(MOVFragmentIndex));
3835 return AVERROR(ENOMEM);
3837 index->track_id = track_id;
3839 index->item_count = avio_rb16(pb);
3840 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
3842 if (!index->items) {
3844 return AVERROR(ENOMEM);
3847 for (i = 0; i < index->item_count; i++) {
3848 uint32_t size = avio_rb32(pb);
3849 uint32_t duration = avio_rb32(pb);
3850 if (size & 0x80000000) {
3851 avpriv_request_sample(c->fc, "sidx reference_type 1");
3852 av_freep(&index->items);
3854 return AVERROR_PATCHWELCOME;
3856 avio_rb32(pb); // sap_flags
3857 index->items[i].moof_offset = offset;
3858 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
3863 st->duration = sc->track_end = pts;
3865 tmp = av_realloc_array(c->fragment_index_data,
3866 c->fragment_index_count + 1,
3867 sizeof(MOVFragmentIndex*));
3869 av_freep(&index->items);
3871 return AVERROR(ENOMEM);
3874 c->fragment_index_data = tmp;
3875 c->fragment_index_data[c->fragment_index_count++] = index;
3877 if (offset == avio_size(pb))
3878 c->fragment_index_complete = 1;
3883 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3884 /* like the files created with Adobe Premiere 5.0, for samples see */
3885 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3886 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3891 return 0; /* continue */
3892 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3893 avio_skip(pb, atom.size - 4);
3896 atom.type = avio_rl32(pb);
3898 if (atom.type != MKTAG('m','d','a','t')) {
3899 avio_skip(pb, atom.size);
3902 err = mov_read_mdat(c, pb, atom);
3906 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3911 uint8_t *moov_data; /* uncompressed data */
3912 long cmov_len, moov_len;
3915 avio_rb32(pb); /* dcom atom */
3916 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3917 return AVERROR_INVALIDDATA;
3918 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3919 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3920 return AVERROR_INVALIDDATA;
3922 avio_rb32(pb); /* cmvd atom */
3923 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3924 return AVERROR_INVALIDDATA;
3925 moov_len = avio_rb32(pb); /* uncompressed size */
3926 cmov_len = atom.size - 6 * 4;
3928 cmov_data = av_malloc(cmov_len);
3930 return AVERROR(ENOMEM);
3931 moov_data = av_malloc(moov_len);
3934 return AVERROR(ENOMEM);
3936 ret = ffio_read_size(pb, cmov_data, cmov_len);
3938 goto free_and_return;
3940 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3941 goto free_and_return;
3942 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3943 goto free_and_return;
3944 ctx.seekable = AVIO_SEEKABLE_NORMAL;
3945 atom.type = MKTAG('m','o','o','v');
3946 atom.size = moov_len;
3947 ret = mov_read_default(c, &ctx, atom);
3953 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3954 return AVERROR(ENOSYS);
3958 /* edit list atom */
3959 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3961 MOVStreamContext *sc;
3962 int i, edit_count, version;
3964 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3966 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3968 version = avio_r8(pb); /* version */
3969 avio_rb24(pb); /* flags */
3970 edit_count = avio_rb32(pb); /* entries */
3975 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3976 av_free(sc->elst_data);
3978 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3980 return AVERROR(ENOMEM);
3982 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3983 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3984 MOVElst *e = &sc->elst_data[i];
3987 e->duration = avio_rb64(pb);
3988 e->time = avio_rb64(pb);
3990 e->duration = avio_rb32(pb); /* segment duration */
3991 e->time = (int32_t)avio_rb32(pb); /* media time */
3993 e->rate = avio_rb32(pb) / 65536.0;
3994 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3995 e->duration, e->time, e->rate);
4002 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4004 MOVStreamContext *sc;
4006 if (c->fc->nb_streams < 1)
4007 return AVERROR_INVALIDDATA;
4008 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
4009 sc->timecode_track = avio_rb32(pb);
4013 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4017 static const uint8_t uuid_isml_manifest[] = {
4018 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4019 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4021 static const uint8_t uuid_xmp[] = {
4022 0xbe, 0x7a, 0xcf, 0xcb, 0x97, 0xa9, 0x42, 0xe8,
4023 0x9c, 0x71, 0x99, 0x94, 0x91, 0xe3, 0xaf, 0xac
4026 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
4027 return AVERROR_INVALIDDATA;
4029 ret = avio_read(pb, uuid, sizeof(uuid));
4032 } else if (ret != sizeof(uuid)) {
4033 return AVERROR_INVALIDDATA;
4035 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
4036 uint8_t *buffer, *ptr;
4038 size_t len = atom.size - sizeof(uuid);
4041 return AVERROR_INVALIDDATA;
4043 ret = avio_skip(pb, 4); // zeroes
4046 buffer = av_mallocz(len + 1);
4048 return AVERROR(ENOMEM);
4050 ret = avio_read(pb, buffer, len);
4054 } else if (ret != len) {
4056 return AVERROR_INVALIDDATA;
4060 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
4061 ptr += sizeof("systemBitrate=\"") - 1;
4062 c->bitrates_count++;
4063 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
4065 c->bitrates_count = 0;
4067 return AVERROR(ENOMEM);
4070 ret = strtol(ptr, &endptr, 10);
4071 if (ret < 0 || errno || *endptr != '"') {
4072 c->bitrates[c->bitrates_count - 1] = 0;
4074 c->bitrates[c->bitrates_count - 1] = ret;
4079 } else if (!memcmp(uuid, uuid_xmp, sizeof(uuid))) {
4081 size_t len = atom.size - sizeof(uuid);
4083 buffer = av_mallocz(len + 1);
4085 return AVERROR(ENOMEM);
4087 ret = avio_read(pb, buffer, len);
4091 } else if (ret != len) {
4093 return AVERROR_INVALIDDATA;
4095 if (c->export_xmp) {
4097 av_dict_set(&c->fc->metadata, "xmp", buffer, 0);
4104 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4107 uint8_t content[16];
4112 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
4118 && !memcmp(content, "Anevia\x1A\x1A", 8)
4119 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
4120 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
4126 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4128 uint32_t format = avio_rl32(pb);
4129 MOVStreamContext *sc;
4133 if (c->fc->nb_streams < 1)
4135 st = c->fc->streams[c->fc->nb_streams - 1];
4140 case MKTAG('e','n','c','v'): // encrypted video
4141 case MKTAG('e','n','c','a'): // encrypted audio
4142 id = mov_codec_id(st, format);
4143 if (st->codecpar->codec_id != AV_CODEC_ID_NONE &&
4144 st->codecpar->codec_id != id) {
4145 av_log(c->fc, AV_LOG_WARNING,
4146 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
4147 (char*)&format, st->codecpar->codec_id);
4151 st->codecpar->codec_id = id;
4152 sc->format = format;
4156 if (format != sc->format) {
4157 av_log(c->fc, AV_LOG_WARNING,
4158 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4159 (char*)&format, (char*)&sc->format);
4167 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4170 MOVStreamContext *sc;
4171 size_t auxiliary_info_size;
4173 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4176 st = c->fc->streams[c->fc->nb_streams - 1];
4179 if (sc->cenc.aes_ctr) {
4180 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
4181 return AVERROR_INVALIDDATA;
4184 avio_r8(pb); /* version */
4185 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
4187 avio_rb32(pb); /* entries */
4189 if (atom.size < 8) {
4190 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" too small\n", atom.size);
4191 return AVERROR_INVALIDDATA;
4194 /* save the auxiliary info as is */
4195 auxiliary_info_size = atom.size - 8;
4197 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
4198 if (!sc->cenc.auxiliary_info) {
4199 return AVERROR(ENOMEM);
4202 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
4204 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
4206 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
4207 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
4208 return AVERROR_INVALIDDATA;
4211 /* initialize the cipher */
4212 sc->cenc.aes_ctr = av_aes_ctr_alloc();
4213 if (!sc->cenc.aes_ctr) {
4214 return AVERROR(ENOMEM);
4217 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
4220 static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4223 MOVStreamContext *sc;
4225 int atom_header_size;
4228 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4231 st = c->fc->streams[c->fc->nb_streams - 1];
4234 if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
4235 av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
4236 return AVERROR_INVALIDDATA;
4239 atom_header_size = 9;
4241 avio_r8(pb); /* version */
4242 flags = avio_rb24(pb);
4244 if ((flags & 0x01) != 0) {
4245 atom_header_size += 8;
4247 avio_rb32(pb); /* info type */
4248 avio_rb32(pb); /* info type param */
4251 sc->cenc.auxiliary_info_default_size = avio_r8(pb);
4252 avio_rb32(pb); /* entries */
4254 if (atom.size <= atom_header_size) {
4258 /* save the auxiliary info sizes as is */
4259 data_size = atom.size - atom_header_size;
4261 sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
4262 if (!sc->cenc.auxiliary_info_sizes) {
4263 return AVERROR(ENOMEM);
4266 sc->cenc.auxiliary_info_sizes_count = data_size;
4268 if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
4269 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
4270 return AVERROR_INVALIDDATA;
4276 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, uint8_t *input, int size)
4278 uint32_t encrypted_bytes;
4279 uint16_t subsample_count;
4280 uint16_t clear_bytes;
4281 uint8_t* input_end = input + size;
4284 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4285 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
4286 return AVERROR_INVALIDDATA;
4289 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
4290 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
4292 if (!sc->cenc.use_subsamples)
4294 /* decrypt the whole packet */
4295 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
4299 /* read the subsample count */
4300 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4301 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
4302 return AVERROR_INVALIDDATA;
4305 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
4306 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4308 for (; subsample_count > 0; subsample_count--)
4310 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4311 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
4312 return AVERROR_INVALIDDATA;
4315 /* read the number of clear / encrypted bytes */
4316 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
4317 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4318 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
4319 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
4321 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
4322 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
4323 return AVERROR_INVALIDDATA;
4326 /* skip the clear bytes */
4327 input += clear_bytes;
4329 /* decrypt the encrypted bytes */
4330 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
4331 input += encrypted_bytes;
4334 if (input < input_end) {
4335 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
4336 return AVERROR_INVALIDDATA;
4342 static int mov_seek_auxiliary_info(AVFormatContext *s, MOVStreamContext *sc)
4344 size_t auxiliary_info_seek_offset = 0;
4347 if (sc->cenc.auxiliary_info_default_size) {
4348 auxiliary_info_seek_offset = (size_t)sc->cenc.auxiliary_info_default_size * sc->current_sample;
4349 } else if (sc->cenc.auxiliary_info_sizes) {
4350 if (sc->current_sample > sc->cenc.auxiliary_info_sizes_count) {
4351 av_log(s, AV_LOG_ERROR, "current sample %d greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
4352 sc->current_sample, sc->cenc.auxiliary_info_sizes_count);
4353 return AVERROR_INVALIDDATA;
4356 for (i = 0; i < sc->current_sample; i++) {
4357 auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
4361 if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
4362 av_log(s, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
4363 auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
4364 return AVERROR_INVALIDDATA;
4367 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
4372 static const MOVParseTableEntry mov_default_parse_table[] = {
4373 { MKTAG('A','C','L','R'), mov_read_aclr },
4374 { MKTAG('A','P','R','G'), mov_read_avid },
4375 { MKTAG('A','A','L','P'), mov_read_avid },
4376 { MKTAG('A','R','E','S'), mov_read_ares },
4377 { MKTAG('a','v','s','s'), mov_read_avss },
4378 { MKTAG('c','h','p','l'), mov_read_chpl },
4379 { MKTAG('c','o','6','4'), mov_read_stco },
4380 { MKTAG('c','o','l','r'), mov_read_colr },
4381 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
4382 { MKTAG('d','i','n','f'), mov_read_default },
4383 { MKTAG('D','p','x','E'), mov_read_dpxe },
4384 { MKTAG('d','r','e','f'), mov_read_dref },
4385 { MKTAG('e','d','t','s'), mov_read_default },
4386 { MKTAG('e','l','s','t'), mov_read_elst },
4387 { MKTAG('e','n','d','a'), mov_read_enda },
4388 { MKTAG('f','i','e','l'), mov_read_fiel },
4389 { MKTAG('a','d','r','m'), mov_read_adrm },
4390 { MKTAG('f','t','y','p'), mov_read_ftyp },
4391 { MKTAG('g','l','b','l'), mov_read_glbl },
4392 { MKTAG('h','d','l','r'), mov_read_hdlr },
4393 { MKTAG('i','l','s','t'), mov_read_ilst },
4394 { MKTAG('j','p','2','h'), mov_read_jp2h },
4395 { MKTAG('m','d','a','t'), mov_read_mdat },
4396 { MKTAG('m','d','h','d'), mov_read_mdhd },
4397 { MKTAG('m','d','i','a'), mov_read_default },
4398 { MKTAG('m','e','t','a'), mov_read_meta },
4399 { MKTAG('m','i','n','f'), mov_read_default },
4400 { MKTAG('m','o','o','f'), mov_read_moof },
4401 { MKTAG('m','o','o','v'), mov_read_moov },
4402 { MKTAG('m','v','e','x'), mov_read_default },
4403 { MKTAG('m','v','h','d'), mov_read_mvhd },
4404 { MKTAG('S','M','I',' '), mov_read_svq3 },
4405 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
4406 { MKTAG('a','v','c','C'), mov_read_glbl },
4407 { MKTAG('p','a','s','p'), mov_read_pasp },
4408 { MKTAG('s','i','d','x'), mov_read_sidx },
4409 { MKTAG('s','t','b','l'), mov_read_default },
4410 { MKTAG('s','t','c','o'), mov_read_stco },
4411 { MKTAG('s','t','p','s'), mov_read_stps },
4412 { MKTAG('s','t','r','f'), mov_read_strf },
4413 { MKTAG('s','t','s','c'), mov_read_stsc },
4414 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
4415 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
4416 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
4417 { MKTAG('s','t','t','s'), mov_read_stts },
4418 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
4419 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
4420 { MKTAG('t','f','d','t'), mov_read_tfdt },
4421 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
4422 { MKTAG('t','r','a','k'), mov_read_trak },
4423 { MKTAG('t','r','a','f'), mov_read_default },
4424 { MKTAG('t','r','e','f'), mov_read_default },
4425 { MKTAG('t','m','c','d'), mov_read_tmcd },
4426 { MKTAG('c','h','a','p'), mov_read_chap },
4427 { MKTAG('t','r','e','x'), mov_read_trex },
4428 { MKTAG('t','r','u','n'), mov_read_trun },
4429 { MKTAG('u','d','t','a'), mov_read_default },
4430 { MKTAG('w','a','v','e'), mov_read_wave },
4431 { MKTAG('e','s','d','s'), mov_read_esds },
4432 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
4433 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
4434 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
4435 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
4436 { MKTAG('w','f','e','x'), mov_read_wfex },
4437 { MKTAG('c','m','o','v'), mov_read_cmov },
4438 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
4439 { MKTAG('d','v','c','1'), mov_read_dvc1 },
4440 { MKTAG('s','b','g','p'), mov_read_sbgp },
4441 { MKTAG('h','v','c','C'), mov_read_glbl },
4442 { MKTAG('u','u','i','d'), mov_read_uuid },
4443 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
4444 { MKTAG('f','r','e','e'), mov_read_free },
4445 { MKTAG('-','-','-','-'), mov_read_custom },
4446 { MKTAG('s','i','n','f'), mov_read_default },
4447 { MKTAG('f','r','m','a'), mov_read_frma },
4448 { MKTAG('s','e','n','c'), mov_read_senc },
4449 { MKTAG('s','a','i','z'), mov_read_saiz },
4453 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4455 int64_t total_size = 0;
4459 if (c->atom_depth > 10) {
4460 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
4461 return AVERROR_INVALIDDATA;
4466 atom.size = INT64_MAX;
4467 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
4468 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
4471 if (atom.size >= 8) {
4472 a.size = avio_rb32(pb);
4473 a.type = avio_rl32(pb);
4474 if (a.type == MKTAG('f','r','e','e') &&
4478 uint32_t *type = (uint32_t *)buf + 1;
4479 if (avio_read(pb, buf, 8) != 8)
4480 return AVERROR_INVALIDDATA;
4481 avio_seek(pb, -8, SEEK_CUR);
4482 if (*type == MKTAG('m','v','h','d') ||
4483 *type == MKTAG('c','m','o','v')) {
4484 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
4485 a.type = MKTAG('m','o','o','v');
4488 if (atom.type != MKTAG('r','o','o','t') &&
4489 atom.type != MKTAG('m','o','o','v'))
4491 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
4493 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
4500 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
4501 a.size = avio_rb64(pb) - 8;
4505 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
4506 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
4508 a.size = atom.size - total_size + 8;
4513 a.size = FFMIN(a.size, atom.size - total_size);
4515 for (i = 0; mov_default_parse_table[i].type; i++)
4516 if (mov_default_parse_table[i].type == a.type) {
4517 parse = mov_default_parse_table[i].parse;
4521 // container is user data
4522 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
4523 atom.type == MKTAG('i','l','s','t')))
4524 parse = mov_read_udta_string;
4526 // Supports parsing the QuickTime Metadata Keys.
4527 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
4528 if (!parse && c->found_hdlr_mdta &&
4529 atom.type == MKTAG('m','e','t','a') &&
4530 a.type == MKTAG('k','e','y','s')) {
4531 parse = mov_read_keys;
4534 if (!parse) { /* skip leaf atoms data */
4535 avio_skip(pb, a.size);
4537 int64_t start_pos = avio_tell(pb);
4539 int err = parse(c, pb, a);
4544 if (c->found_moov && c->found_mdat &&
4545 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
4546 start_pos + a.size == avio_size(pb))) {
4547 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
4548 c->next_root_atom = start_pos + a.size;
4552 left = a.size - avio_tell(pb) + start_pos;
4553 if (left > 0) /* skip garbage at atom end */
4554 avio_skip(pb, left);
4555 else if (left < 0) {
4556 av_log(c->fc, AV_LOG_WARNING,
4557 "overread end of atom '%.4s' by %"PRId64" bytes\n",
4558 (char*)&a.type, -left);
4559 avio_seek(pb, left, SEEK_CUR);
4563 total_size += a.size;
4566 if (total_size < atom.size && atom.size < 0x7ffff)
4567 avio_skip(pb, atom.size - total_size);
4573 static int mov_probe(AVProbeData *p)
4578 int moov_offset = -1;
4580 /* check file header */
4583 /* ignore invalid offset */
4584 if ((offset + 8) > (unsigned int)p->buf_size)
4586 tag = AV_RL32(p->buf + offset + 4);
4588 /* check for obvious tags */
4589 case MKTAG('m','o','o','v'):
4590 moov_offset = offset + 4;
4591 case MKTAG('m','d','a','t'):
4592 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
4593 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
4594 case MKTAG('f','t','y','p'):
4595 if (AV_RB32(p->buf+offset) < 8 &&
4596 (AV_RB32(p->buf+offset) != 1 ||
4597 offset + 12 > (unsigned int)p->buf_size ||
4598 AV_RB64(p->buf+offset + 8) == 0)) {
4599 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4600 } else if (tag == MKTAG('f','t','y','p') &&
4601 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
4602 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
4604 score = FFMAX(score, 5);
4606 score = AVPROBE_SCORE_MAX;
4608 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4610 /* those are more common words, so rate then a bit less */
4611 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
4612 case MKTAG('w','i','d','e'):
4613 case MKTAG('f','r','e','e'):
4614 case MKTAG('j','u','n','k'):
4615 case MKTAG('p','i','c','t'):
4616 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
4617 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4619 case MKTAG(0x82,0x82,0x7f,0x7d):
4620 case MKTAG('s','k','i','p'):
4621 case MKTAG('u','u','i','d'):
4622 case MKTAG('p','r','f','l'):
4623 /* if we only find those cause probedata is too small at least rate them */
4624 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4625 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4628 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4631 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
4632 /* moov atom in the header - we should make sure that this is not a
4633 * MOV-packed MPEG-PS */
4634 offset = moov_offset;
4636 while(offset < (p->buf_size - 16)){ /* Sufficient space */
4637 /* We found an actual hdlr atom */
4638 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
4639 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
4640 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
4641 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
4642 /* We found a media handler reference atom describing an
4643 * MPEG-PS-in-MOV, return a
4644 * low score to force expanding the probe window until
4645 * mpegps_probe finds what it needs */
4656 // must be done after parsing all trak because there's no order requirement
4657 static void mov_read_chapters(AVFormatContext *s)
4659 MOVContext *mov = s->priv_data;
4660 AVStream *st = NULL;
4661 MOVStreamContext *sc;
4665 for (i = 0; i < s->nb_streams; i++)
4666 if (s->streams[i]->id == mov->chapter_track) {
4671 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
4675 st->discard = AVDISCARD_ALL;
4677 cur_pos = avio_tell(sc->pb);
4679 for (i = 0; i < st->nb_index_entries; i++) {
4680 AVIndexEntry *sample = &st->index_entries[i];
4681 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
4686 if (end < sample->timestamp) {
4687 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
4688 end = AV_NOPTS_VALUE;
4691 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4692 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
4696 // the first two bytes are the length of the title
4697 len = avio_rb16(sc->pb);
4698 if (len > sample->size-2)
4700 title_len = 2*len + 1;
4701 if (!(title = av_mallocz(title_len)))
4704 // The samples could theoretically be in any encoding if there's an encd
4705 // atom following, but in practice are only utf-8 or utf-16, distinguished
4706 // instead by the presence of a BOM
4710 ch = avio_rb16(sc->pb);
4712 avio_get_str16be(sc->pb, len, title, title_len);
4713 else if (ch == 0xfffe)
4714 avio_get_str16le(sc->pb, len, title, title_len);
4717 if (len == 1 || len == 2)
4720 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
4724 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
4728 avio_seek(sc->pb, cur_pos, SEEK_SET);
4731 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
4732 uint32_t value, int flags)
4735 char buf[AV_TIMECODE_STR_SIZE];
4736 AVRational rate = st->avg_frame_rate;
4737 int ret = av_timecode_init(&tc, rate, flags, 0, s);
4740 av_dict_set(&st->metadata, "timecode",
4741 av_timecode_make_string(&tc, buf, value), 0);
4745 static int mov_read_rtmd_track(AVFormatContext *s, AVStream *st)
4747 MOVStreamContext *sc = st->priv_data;
4748 char buf[AV_TIMECODE_STR_SIZE];
4749 int64_t cur_pos = avio_tell(sc->pb);
4750 int hh, mm, ss, ff, drop;
4752 if (!st->nb_index_entries)
4755 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
4756 avio_skip(s->pb, 13);
4757 hh = avio_r8(s->pb);
4758 mm = avio_r8(s->pb);
4759 ss = avio_r8(s->pb);
4760 drop = avio_r8(s->pb);
4761 ff = avio_r8(s->pb);
4762 snprintf(buf, AV_TIMECODE_STR_SIZE, "%02d:%02d:%02d%c%02d",
4763 hh, mm, ss, drop ? ';' : ':', ff);
4764 av_dict_set(&st->metadata, "timecode", buf, 0);
4766 avio_seek(sc->pb, cur_pos, SEEK_SET);
4770 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
4772 MOVStreamContext *sc = st->priv_data;
4774 int64_t cur_pos = avio_tell(sc->pb);
4777 if (!st->nb_index_entries)
4780 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
4781 value = avio_rb32(s->pb);
4783 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
4784 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
4785 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
4787 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
4788 * not the case) and thus assume "frame number format" instead of QT one.
4789 * No sample with tmcd track can be found with a QT timecode at the moment,
4790 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
4792 parse_timecode_in_framenum_format(s, st, value, flags);
4794 avio_seek(sc->pb, cur_pos, SEEK_SET);
4798 static int mov_read_close(AVFormatContext *s)
4800 MOVContext *mov = s->priv_data;
4803 for (i = 0; i < s->nb_streams; i++) {
4804 AVStream *st = s->streams[i];
4805 MOVStreamContext *sc = st->priv_data;
4810 av_freep(&sc->ctts_data);
4811 for (j = 0; j < sc->drefs_count; j++) {
4812 av_freep(&sc->drefs[j].path);
4813 av_freep(&sc->drefs[j].dir);
4815 av_freep(&sc->drefs);
4817 sc->drefs_count = 0;
4819 if (!sc->pb_is_copied)
4820 ff_format_io_close(s, &sc->pb);
4823 av_freep(&sc->chunk_offsets);
4824 av_freep(&sc->stsc_data);
4825 av_freep(&sc->sample_sizes);
4826 av_freep(&sc->keyframes);
4827 av_freep(&sc->stts_data);
4828 av_freep(&sc->stps_data);
4829 av_freep(&sc->elst_data);
4830 av_freep(&sc->rap_group);
4831 av_freep(&sc->display_matrix);
4834 for (j = 0; j < sc->stsd_count; j++)
4835 av_free(sc->extradata[j]);
4836 av_freep(&sc->extradata);
4837 av_freep(&sc->extradata_size);
4839 av_freep(&sc->cenc.auxiliary_info);
4840 av_freep(&sc->cenc.auxiliary_info_sizes);
4841 av_aes_ctr_free(sc->cenc.aes_ctr);
4844 if (mov->dv_demux) {
4845 avformat_free_context(mov->dv_fctx);
4846 mov->dv_fctx = NULL;
4849 if (mov->meta_keys) {
4850 for (i = 1; i < mov->meta_keys_count; i++) {
4851 av_freep(&mov->meta_keys[i]);
4853 av_freep(&mov->meta_keys);
4856 av_freep(&mov->trex_data);
4857 av_freep(&mov->bitrates);
4859 for (i = 0; i < mov->fragment_index_count; i++) {
4860 MOVFragmentIndex* index = mov->fragment_index_data[i];
4861 av_freep(&index->items);
4862 av_freep(&mov->fragment_index_data[i]);
4864 av_freep(&mov->fragment_index_data);
4866 av_freep(&mov->aes_decrypt);
4871 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
4875 for (i = 0; i < s->nb_streams; i++) {
4876 AVStream *st = s->streams[i];
4877 MOVStreamContext *sc = st->priv_data;
4879 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
4880 sc->timecode_track == tmcd_id)
4886 /* look for a tmcd track not referenced by any video track, and export it globally */
4887 static void export_orphan_timecode(AVFormatContext *s)
4891 for (i = 0; i < s->nb_streams; i++) {
4892 AVStream *st = s->streams[i];
4894 if (st->codecpar->codec_tag == MKTAG('t','m','c','d') &&
4895 !tmcd_is_referenced(s, i + 1)) {
4896 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
4898 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
4905 static int read_tfra(MOVContext *mov, AVIOContext *f)
4907 MOVFragmentIndex* index = NULL;
4908 int version, fieldlength, i, j;
4909 int64_t pos = avio_tell(f);
4910 uint32_t size = avio_rb32(f);
4913 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
4916 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
4917 index = av_mallocz(sizeof(MOVFragmentIndex));
4919 return AVERROR(ENOMEM);
4922 tmp = av_realloc_array(mov->fragment_index_data,
4923 mov->fragment_index_count + 1,
4924 sizeof(MOVFragmentIndex*));
4927 return AVERROR(ENOMEM);
4929 mov->fragment_index_data = tmp;
4930 mov->fragment_index_data[mov->fragment_index_count++] = index;
4932 version = avio_r8(f);
4934 index->track_id = avio_rb32(f);
4935 fieldlength = avio_rb32(f);
4936 index->item_count = avio_rb32(f);
4937 index->items = av_mallocz_array(
4938 index->item_count, sizeof(MOVFragmentIndexItem));
4939 if (!index->items) {
4940 index->item_count = 0;
4941 return AVERROR(ENOMEM);
4943 for (i = 0; i < index->item_count; i++) {
4944 int64_t time, offset;
4946 time = avio_rb64(f);
4947 offset = avio_rb64(f);
4949 time = avio_rb32(f);
4950 offset = avio_rb32(f);
4952 index->items[i].time = time;
4953 index->items[i].moof_offset = offset;
4954 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
4956 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
4958 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
4962 avio_seek(f, pos + size, SEEK_SET);
4966 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
4968 int64_t stream_size = avio_size(f);
4969 int64_t original_pos = avio_tell(f);
4973 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4977 mfra_size = avio_rb32(f);
4978 if (mfra_size < 0 || mfra_size > stream_size) {
4979 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4982 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4986 if (avio_rb32(f) != mfra_size) {
4987 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4990 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4991 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4994 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4996 ret = read_tfra(c, f);
5002 seek_ret = avio_seek(f, original_pos, SEEK_SET);
5004 av_log(c->fc, AV_LOG_ERROR,
5005 "failed to seek back after looking for mfra\n");
5011 static int mov_read_header(AVFormatContext *s)
5013 MOVContext *mov = s->priv_data;
5014 AVIOContext *pb = s->pb;
5016 MOVAtom atom = { AV_RL32("root") };
5019 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
5020 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
5021 mov->decryption_key_len, AES_CTR_KEY_SIZE);
5022 return AVERROR(EINVAL);
5026 mov->trak_index = -1;
5027 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
5029 atom.size = avio_size(pb);
5031 atom.size = INT64_MAX;
5033 /* check MOV header */
5035 if (mov->moov_retry)
5036 avio_seek(pb, 0, SEEK_SET);
5037 if ((err = mov_read_default(mov, pb, atom)) < 0) {
5038 av_log(s, AV_LOG_ERROR, "error reading header\n");
5042 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
5043 if (!mov->found_moov) {
5044 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
5046 return AVERROR_INVALIDDATA;
5048 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
5051 if (mov->chapter_track > 0 && !mov->ignore_chapters)
5052 mov_read_chapters(s);
5053 for (i = 0; i < s->nb_streams; i++)
5054 if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd")) {
5055 mov_read_timecode_track(s, s->streams[i]);
5056 } else if (s->streams[i]->codecpar->codec_tag == AV_RL32("rtmd")) {
5057 mov_read_rtmd_track(s, s->streams[i]);
5061 /* copy timecode metadata from tmcd tracks to the related video streams */
5062 for (i = 0; i < s->nb_streams; i++) {
5063 AVStream *st = s->streams[i];
5064 MOVStreamContext *sc = st->priv_data;
5065 if (sc->timecode_track > 0) {
5066 AVDictionaryEntry *tcr;
5067 int tmcd_st_id = -1;
5069 for (j = 0; j < s->nb_streams; j++)
5070 if (s->streams[j]->id == sc->timecode_track)
5073 if (tmcd_st_id < 0 || tmcd_st_id == i)
5075 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
5077 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
5080 export_orphan_timecode(s);
5082 for (i = 0; i < s->nb_streams; i++) {
5083 AVStream *st = s->streams[i];
5084 MOVStreamContext *sc = st->priv_data;
5085 fix_timescale(mov, sc);
5086 if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {
5087 st->skip_samples = sc->start_pad;
5089 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
5090 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
5091 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
5092 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5093 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
5094 st->codecpar->width = sc->width;
5095 st->codecpar->height = sc->height;
5097 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
5098 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
5102 if (mov->handbrake_version &&
5103 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
5104 st->codecpar->codec_id == AV_CODEC_ID_MP3
5106 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
5107 st->need_parsing = AVSTREAM_PARSE_FULL;
5111 if (mov->trex_data) {
5112 for (i = 0; i < s->nb_streams; i++) {
5113 AVStream *st = s->streams[i];
5114 MOVStreamContext *sc = st->priv_data;
5115 if (st->duration > 0)
5116 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
5120 if (mov->use_mfra_for > 0) {
5121 for (i = 0; i < s->nb_streams; i++) {
5122 AVStream *st = s->streams[i];
5123 MOVStreamContext *sc = st->priv_data;
5124 if (sc->duration_for_fps > 0) {
5125 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /
5126 sc->duration_for_fps;
5131 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
5132 if (mov->bitrates[i]) {
5133 s->streams[i]->codecpar->bit_rate = mov->bitrates[i];
5137 ff_rfps_calculate(s);
5139 for (i = 0; i < s->nb_streams; i++) {
5140 AVStream *st = s->streams[i];
5141 MOVStreamContext *sc = st->priv_data;
5143 switch (st->codecpar->codec_type) {
5144 case AVMEDIA_TYPE_AUDIO:
5145 err = ff_replaygain_export(st, s->metadata);
5151 case AVMEDIA_TYPE_VIDEO:
5152 if (sc->display_matrix) {
5153 AVPacketSideData *sd, *tmp;
5155 tmp = av_realloc_array(st->side_data,
5156 st->nb_side_data + 1, sizeof(*tmp));
5158 return AVERROR(ENOMEM);
5160 st->side_data = tmp;
5163 sd = &st->side_data[st->nb_side_data - 1];
5164 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
5165 sd->size = sizeof(int32_t) * 9;
5166 sd->data = (uint8_t*)sc->display_matrix;
5167 sc->display_matrix = NULL;
5172 ff_configure_buffers_for_index(s, AV_TIME_BASE);
5177 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
5179 AVIndexEntry *sample = NULL;
5180 int64_t best_dts = INT64_MAX;
5182 for (i = 0; i < s->nb_streams; i++) {
5183 AVStream *avst = s->streams[i];
5184 MOVStreamContext *msc = avst->priv_data;
5185 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
5186 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
5187 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
5188 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
5189 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
5191 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
5192 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
5193 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
5194 sample = current_sample;
5203 static int should_retry(AVIOContext *pb, int error_code) {
5204 if (error_code == AVERROR_EOF || avio_feof(pb))
5210 static int mov_switch_root(AVFormatContext *s, int64_t target)
5212 MOVContext *mov = s->priv_data;
5214 int already_read = 0;
5216 if (avio_seek(s->pb, target, SEEK_SET) != target) {
5217 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
5218 return AVERROR_INVALIDDATA;
5221 mov->next_root_atom = 0;
5223 for (i = 0; i < mov->fragment_index_count; i++) {
5224 MOVFragmentIndex *index = mov->fragment_index_data[i];
5226 for (j = 0; j < index->item_count; j++) {
5227 MOVFragmentIndexItem *item = &index->items[j];
5229 mov->next_root_atom = item->moof_offset;
5230 break; // Advance to next index in outer loop
5231 } else if (item->moof_offset == target) {
5232 index->current_item = FFMIN(j, index->current_item);
5233 if (item->headers_read)
5235 item->headers_read = 1;
5240 index->current_item = 0;
5246 mov->found_mdat = 0;
5248 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
5251 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
5256 static int mov_change_extradata(MOVStreamContext *sc, AVPacket *pkt)
5258 uint8_t *side, *extradata;
5261 /* Save the current index. */
5262 sc->last_stsd_index = sc->stsc_data[sc->stsc_index].id - 1;
5264 /* Notify the decoder that extradata changed. */
5265 extradata_size = sc->extradata_size[sc->last_stsd_index];
5266 extradata = sc->extradata[sc->last_stsd_index];
5267 if (extradata_size > 0 && extradata) {
5268 side = av_packet_new_side_data(pkt,
5269 AV_PKT_DATA_NEW_EXTRADATA,
5272 return AVERROR(ENOMEM);
5273 memcpy(side, extradata, extradata_size);
5279 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
5281 MOVContext *mov = s->priv_data;
5282 MOVStreamContext *sc;
5283 AVIndexEntry *sample;
5284 AVStream *st = NULL;
5288 sample = mov_find_next_sample(s, &st);
5289 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
5290 if (!mov->next_root_atom)
5292 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
5297 /* must be done just before reading, to avoid infinite loop on sample */
5298 sc->current_sample++;
5300 if (mov->next_root_atom) {
5301 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
5302 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
5305 if (st->discard != AVDISCARD_ALL) {
5306 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
5307 if (ret64 != sample->pos) {
5308 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
5309 sc->ffindex, sample->pos);
5310 sc->current_sample -= should_retry(sc->pb, ret64);
5311 return AVERROR_INVALIDDATA;
5314 if( st->discard == AVDISCARD_NONKEY && 0==(sample->flags & AVINDEX_KEYFRAME) ) {
5315 av_log(mov->fc, AV_LOG_DEBUG, "Nonkey frame from stream %d discarded due to AVDISCARD_NONKEY\n", sc->ffindex);
5319 ret = av_get_packet(sc->pb, pkt, sample->size);
5321 sc->current_sample -= should_retry(sc->pb, ret);
5324 if (sc->has_palette) {
5327 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
5329 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
5331 memcpy(pal, sc->palette, AVPALETTE_SIZE);
5332 sc->has_palette = 0;
5335 #if CONFIG_DV_DEMUXER
5336 if (mov->dv_demux && sc->dv_audio_container) {
5337 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
5338 av_freep(&pkt->data);
5340 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
5345 if (st->codecpar->codec_id == AV_CODEC_ID_MP3 && !st->need_parsing && pkt->size > 4) {
5346 if (ff_mpa_check_header(AV_RB32(pkt->data)) < 0)
5347 st->need_parsing = AVSTREAM_PARSE_FULL;
5351 pkt->stream_index = sc->ffindex;
5352 pkt->dts = sample->timestamp;
5353 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
5354 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
5355 /* update ctts context */
5357 if (sc->ctts_index < sc->ctts_count &&
5358 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
5360 sc->ctts_sample = 0;
5363 pkt->dts = AV_NOPTS_VALUE;
5365 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
5366 st->index_entries[sc->current_sample].timestamp : st->duration;
5367 pkt->duration = next_dts - pkt->dts;
5368 pkt->pts = pkt->dts;
5370 if (st->discard == AVDISCARD_ALL)
5372 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
5373 pkt->pos = sample->pos;
5375 /* Multiple stsd handling. */
5376 if (sc->stsc_data) {
5377 /* Keep track of the stsc index for the given sample, then check
5378 * if the stsd index is different from the last used one. */
5380 if (sc->stsc_index < sc->stsc_count - 1 &&
5381 mov_get_stsc_samples(sc, sc->stsc_index) == sc->stsc_sample) {
5383 sc->stsc_sample = 0;
5384 /* Do not check indexes after a switch. */
5385 } else if (sc->stsc_data[sc->stsc_index].id > 0 &&
5386 sc->stsc_data[sc->stsc_index].id - 1 < sc->stsd_count &&
5387 sc->stsc_data[sc->stsc_index].id - 1 != sc->last_stsd_index) {
5388 ret = mov_change_extradata(sc, pkt);
5395 aax_filter(pkt->data, pkt->size, mov);
5397 if (sc->cenc.aes_ctr) {
5398 ret = cenc_filter(mov, sc, pkt->data, pkt->size);
5407 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
5409 MOVContext *mov = s->priv_data;
5412 if (!mov->fragment_index_complete)
5415 for (i = 0; i < mov->fragment_index_count; i++) {
5416 if (mov->fragment_index_data[i]->track_id == st->id) {
5417 MOVFragmentIndex *index = mov->fragment_index_data[i];
5418 for (j = index->item_count - 1; j >= 0; j--) {
5419 if (index->items[j].time <= timestamp) {
5420 if (index->items[j].headers_read)
5423 return mov_switch_root(s, index->items[j].moof_offset);
5432 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
5434 MOVStreamContext *sc = st->priv_data;
5435 int sample, time_sample;
5438 int ret = mov_seek_fragment(s, st, timestamp);
5442 sample = av_index_search_timestamp(st, timestamp, flags);
5443 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
5444 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
5446 if (sample < 0) /* not sure what to do */
5447 return AVERROR_INVALIDDATA;
5448 sc->current_sample = sample;
5449 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
5450 /* adjust ctts index */
5451 if (sc->ctts_data) {
5453 for (i = 0; i < sc->ctts_count; i++) {
5454 int next = time_sample + sc->ctts_data[i].count;
5455 if (next > sc->current_sample) {
5457 sc->ctts_sample = sc->current_sample - time_sample;
5464 /* adjust stsd index */
5466 for (i = 0; i < sc->stsc_count; i++) {
5467 int next = time_sample + mov_get_stsc_samples(sc, i);
5468 if (next > sc->current_sample) {
5470 sc->stsc_sample = sc->current_sample - time_sample;
5476 ret = mov_seek_auxiliary_info(s, sc);
5484 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
5486 MOVContext *mc = s->priv_data;
5491 if (stream_index >= s->nb_streams)
5492 return AVERROR_INVALIDDATA;
5494 st = s->streams[stream_index];
5495 sample = mov_seek_stream(s, st, sample_time, flags);
5499 if (mc->seek_individually) {
5500 /* adjust seek timestamp to found sample timestamp */
5501 int64_t seek_timestamp = st->index_entries[sample].timestamp;
5503 for (i = 0; i < s->nb_streams; i++) {
5505 MOVStreamContext *sc = s->streams[i]->priv_data;
5507 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
5509 if (stream_index == i)
5512 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
5513 mov_seek_stream(s, st, timestamp, flags);
5516 for (i = 0; i < s->nb_streams; i++) {
5517 MOVStreamContext *sc;
5520 sc->current_sample = 0;
5523 MOVStreamContext *sc;
5524 AVIndexEntry *entry = mov_find_next_sample(s, &st);
5526 return AVERROR_INVALIDDATA;
5528 if (sc->ffindex == stream_index && sc->current_sample == sample)
5530 sc->current_sample++;
5536 #define OFFSET(x) offsetof(MOVContext, x)
5537 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
5538 static const AVOption mov_options[] = {
5539 {"use_absolute_path",
5540 "allow using absolute path when opening alias, this is a possible security issue",
5541 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
5543 {"seek_streams_individually",
5544 "Seek each stream individually to the to the closest point",
5545 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
5547 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
5549 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
5552 "use mfra for fragment timestamps",
5553 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
5554 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
5556 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
5557 FLAGS, "use_mfra_for" },
5558 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
5559 FLAGS, "use_mfra_for" },
5560 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
5561 FLAGS, "use_mfra_for" },
5562 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
5563 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5564 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
5565 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5566 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
5567 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5568 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
5569 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
5570 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
5571 .flags = AV_OPT_FLAG_DECODING_PARAM },
5572 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5573 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
5574 {.i64 = 0}, 0, 1, FLAGS },
5579 static const AVClass mov_class = {
5580 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
5581 .item_name = av_default_item_name,
5582 .option = mov_options,
5583 .version = LIBAVUTIL_VERSION_INT,
5586 AVInputFormat ff_mov_demuxer = {
5587 .name = "mov,mp4,m4a,3gp,3g2,mj2",
5588 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5589 .priv_class = &mov_class,
5590 .priv_data_size = sizeof(MOVContext),
5591 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
5592 .read_probe = mov_probe,
5593 .read_header = mov_read_header,
5594 .read_packet = mov_read_packet,
5595 .read_close = mov_read_close,
5596 .read_seek = mov_read_seek,
5597 .flags = AVFMT_NO_BYTE_SEEK,