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/avassert.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/display.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/aes.h"
43 #include "libavutil/aes_ctr.h"
44 #include "libavutil/sha.h"
45 #include "libavutil/spherical.h"
46 #include "libavutil/stereo3d.h"
47 #include "libavutil/timecode.h"
48 #include "libavcodec/ac3tab.h"
49 #include "libavcodec/flac.h"
50 #include "libavcodec/mpegaudiodecheader.h"
53 #include "avio_internal.h"
56 #include "libavcodec/get_bits.h"
59 #include "replaygain.h"
65 #include "qtpalette.h"
67 /* those functions parse an atom */
68 /* links atom IDs to parse functions */
69 typedef struct MOVParseTableEntry {
71 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
74 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
75 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
77 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
78 unsigned len, const char *key)
82 short current, total = 0;
83 avio_rb16(pb); // unknown
84 current = avio_rb16(pb);
86 total = avio_rb16(pb);
88 snprintf(buf, sizeof(buf), "%d", current);
90 snprintf(buf, sizeof(buf), "%d/%d", current, total);
91 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
92 av_dict_set(&c->fc->metadata, key, buf, 0);
97 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
98 unsigned len, const char *key)
100 /* bypass padding bytes */
105 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
106 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
111 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
112 unsigned len, const char *key)
114 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
115 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
120 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
121 unsigned len, const char *key)
125 avio_r8(pb); // unknown
128 if (genre < 1 || genre > ID3v1_GENRE_MAX)
130 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
131 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
136 static const uint32_t mac_to_unicode[128] = {
137 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
138 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
139 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
140 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
141 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
142 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
143 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
144 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
145 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
146 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
147 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
148 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
149 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
150 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
151 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
152 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
155 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
156 char *dst, int dstlen)
159 char *end = dst+dstlen-1;
162 for (i = 0; i < len; i++) {
163 uint8_t t, c = avio_r8(pb);
164 if (c < 0x80 && p < end)
167 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
173 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
177 MOVStreamContext *sc;
182 case 0xd: id = AV_CODEC_ID_MJPEG; break;
183 case 0xe: id = AV_CODEC_ID_PNG; break;
184 case 0x1b: id = AV_CODEC_ID_BMP; break;
186 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
191 st = avformat_new_stream(c->fc, NULL);
193 return AVERROR(ENOMEM);
194 sc = av_mallocz(sizeof(*sc));
196 return AVERROR(ENOMEM);
199 ret = av_get_packet(pb, &pkt, len);
203 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
204 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
205 id = AV_CODEC_ID_PNG;
207 id = AV_CODEC_ID_MJPEG;
211 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
213 st->attached_pic = pkt;
214 st->attached_pic.stream_index = st->index;
215 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
217 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
218 st->codecpar->codec_id = id;
224 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
226 char language[4] = { 0 };
227 char buf[200], place[100];
228 uint16_t langcode = 0;
229 double longitude, latitude, altitude;
230 const char *key = "location";
232 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
233 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
234 return AVERROR_INVALIDDATA;
237 avio_skip(pb, 4); // version+flags
238 langcode = avio_rb16(pb);
239 ff_mov_lang_to_iso639(langcode, language);
242 len -= avio_get_str(pb, len, place, sizeof(place));
244 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
245 return AVERROR_INVALIDDATA;
247 avio_skip(pb, 1); // role
251 av_log(c->fc, AV_LOG_ERROR,
252 "loci too short (%u bytes left, need at least %d)\n", len, 12);
253 return AVERROR_INVALIDDATA;
255 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
256 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
257 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
259 // Try to output in the same format as the ?xyz field
260 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
262 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
263 av_strlcatf(buf, sizeof(buf), "/%s", place);
265 if (*language && strcmp(language, "und")) {
267 snprintf(key2, sizeof(key2), "%s-%s", key, language);
268 av_dict_set(&c->fc->metadata, key2, buf, 0);
270 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
271 return av_dict_set(&c->fc->metadata, key, buf, 0);
274 static int mov_metadata_hmmt(MOVContext *c, AVIOContext *pb, unsigned len)
280 if (c->ignore_chapters)
283 n_hmmt = avio_rb32(pb);
284 for (i = 0; i < n_hmmt && !pb->eof_reached; i++) {
285 int moment_time = avio_rb32(pb);
286 avpriv_new_chapter(c->fc, i, av_make_q(1, 1000), moment_time, AV_NOPTS_VALUE, NULL);
291 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
294 char key2[32], language[4] = {0};
296 const char *key = NULL;
297 uint16_t langcode = 0;
298 uint32_t data_type = 0, str_size, str_size_alloc;
299 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
304 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
305 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
306 case MKTAG( 'X','M','P','_'):
307 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
308 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
309 case MKTAG( 'a','k','I','D'): key = "account_type";
310 parse = mov_metadata_int8_no_padding; break;
311 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
312 case MKTAG( 'c','a','t','g'): key = "category"; break;
313 case MKTAG( 'c','p','i','l'): key = "compilation";
314 parse = mov_metadata_int8_no_padding; break;
315 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
316 case MKTAG( 'd','e','s','c'): key = "description"; break;
317 case MKTAG( 'd','i','s','k'): key = "disc";
318 parse = mov_metadata_track_or_disc_number; break;
319 case MKTAG( 'e','g','i','d'): key = "episode_uid";
320 parse = mov_metadata_int8_no_padding; break;
321 case MKTAG( 'F','I','R','M'): key = "firmware"; raw = 1; break;
322 case MKTAG( 'g','n','r','e'): key = "genre";
323 parse = mov_metadata_gnre; break;
324 case MKTAG( 'h','d','v','d'): key = "hd_video";
325 parse = mov_metadata_int8_no_padding; break;
326 case MKTAG( 'H','M','M','T'):
327 return mov_metadata_hmmt(c, pb, atom.size);
328 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
329 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
330 case MKTAG( 'l','o','c','i'):
331 return mov_metadata_loci(c, pb, atom.size);
332 case MKTAG( 'p','c','s','t'): key = "podcast";
333 parse = mov_metadata_int8_no_padding; break;
334 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
335 parse = mov_metadata_int8_no_padding; break;
336 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
337 case MKTAG( 'r','t','n','g'): key = "rating";
338 parse = mov_metadata_int8_no_padding; break;
339 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
340 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
341 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
342 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
343 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
344 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
345 case MKTAG( 's','t','i','k'): key = "media_type";
346 parse = mov_metadata_int8_no_padding; break;
347 case MKTAG( 't','r','k','n'): key = "track";
348 parse = mov_metadata_track_or_disc_number; break;
349 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
350 case MKTAG( 't','v','e','s'): key = "episode_sort";
351 parse = mov_metadata_int8_bypass_padding; break;
352 case MKTAG( 't','v','n','n'): key = "network"; break;
353 case MKTAG( 't','v','s','h'): key = "show"; break;
354 case MKTAG( 't','v','s','n'): key = "season_number";
355 parse = mov_metadata_int8_bypass_padding; break;
356 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
357 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
358 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
359 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
360 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
361 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
362 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
363 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
364 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
365 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
366 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
367 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
368 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
369 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
370 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
371 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
372 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
373 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
374 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
375 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
376 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
377 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
378 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
379 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
380 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
381 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
382 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
383 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
384 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
385 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
386 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
387 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
388 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
389 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
390 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
393 if (c->itunes_metadata && atom.size > 8) {
394 int data_size = avio_rb32(pb);
395 int tag = avio_rl32(pb);
396 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
397 data_type = avio_rb32(pb); // type
398 avio_rb32(pb); // unknown
399 str_size = data_size - 16;
402 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
403 int ret = mov_read_covr(c, pb, data_type, str_size);
405 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
408 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
409 uint32_t index = AV_RB32(&atom.type);
410 if (index < c->meta_keys_count && index > 0) {
411 key = c->meta_keys[index];
413 av_log(c->fc, AV_LOG_WARNING,
414 "The index of 'data' is out of range: %d < 1 or >= %d.\n",
415 index, c->meta_keys_count);
419 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
420 str_size = avio_rb16(pb); // string length
421 if (str_size > atom.size) {
423 avio_seek(pb, -2, SEEK_CUR);
424 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
427 langcode = avio_rb16(pb);
428 ff_mov_lang_to_iso639(langcode, language);
431 str_size = atom.size;
433 if (c->export_all && !key) {
434 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
440 if (atom.size < 0 || str_size >= INT_MAX/2)
441 return AVERROR_INVALIDDATA;
443 // Allocates enough space if data_type is a int32 or float32 number, otherwise
444 // worst-case requirement for output string in case of utf8 coded input
445 num = (data_type >= 21 && data_type <= 23);
446 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
447 str = av_mallocz(str_size_alloc);
449 return AVERROR(ENOMEM);
452 parse(c, pb, str_size, key);
454 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
455 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
456 } else if (data_type == 21) { // BE signed integer, variable size
459 val = (int8_t)avio_r8(pb);
460 else if (str_size == 2)
461 val = (int16_t)avio_rb16(pb);
462 else if (str_size == 3)
463 val = ((int32_t)(avio_rb24(pb)<<8))>>8;
464 else if (str_size == 4)
465 val = (int32_t)avio_rb32(pb);
466 if (snprintf(str, str_size_alloc, "%d", val) >= str_size_alloc) {
467 av_log(c->fc, AV_LOG_ERROR,
468 "Failed to store the number (%d) in string.\n", val);
470 return AVERROR_INVALIDDATA;
472 } else if (data_type == 22) { // BE unsigned integer, variable size
473 unsigned int val = 0;
476 else if (str_size == 2)
478 else if (str_size == 3)
480 else if (str_size == 4)
482 if (snprintf(str, str_size_alloc, "%u", val) >= str_size_alloc) {
483 av_log(c->fc, AV_LOG_ERROR,
484 "Failed to store the number (%u) in string.\n", val);
486 return AVERROR_INVALIDDATA;
488 } else if (data_type == 23 && str_size >= 4) { // BE float32
489 float val = av_int2float(avio_rb32(pb));
490 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
491 av_log(c->fc, AV_LOG_ERROR,
492 "Failed to store the float32 number (%f) in string.\n", val);
494 return AVERROR_INVALIDDATA;
497 int ret = ffio_read_size(pb, str, str_size);
504 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
505 av_dict_set(&c->fc->metadata, key, str, 0);
506 if (*language && strcmp(language, "und")) {
507 snprintf(key2, sizeof(key2), "%s-%s", key, language);
508 av_dict_set(&c->fc->metadata, key2, str, 0);
510 if (!strcmp(key, "encoder")) {
511 int major, minor, micro;
512 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
513 c->handbrake_version = 1000000*major + 1000*minor + micro;
517 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
518 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
519 key, str, (char*)&atom.type, str_size_alloc, atom.size);
525 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
528 int i, nb_chapters, str_len, version;
532 if (c->ignore_chapters)
535 if ((atom.size -= 5) < 0)
538 version = avio_r8(pb);
541 avio_rb32(pb); // ???
542 nb_chapters = avio_r8(pb);
544 for (i = 0; i < nb_chapters; i++) {
548 start = avio_rb64(pb);
549 str_len = avio_r8(pb);
551 if ((atom.size -= 9+str_len) < 0)
554 ret = ffio_read_size(pb, str, str_len);
558 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
563 #define MIN_DATA_ENTRY_BOX_SIZE 12
564 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
567 MOVStreamContext *sc;
570 if (c->fc->nb_streams < 1)
572 st = c->fc->streams[c->fc->nb_streams-1];
575 avio_rb32(pb); // version + flags
576 entries = avio_rb32(pb);
578 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
579 entries >= UINT_MAX / sizeof(*sc->drefs))
580 return AVERROR_INVALIDDATA;
584 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
586 return AVERROR(ENOMEM);
587 sc->drefs_count = entries;
589 for (i = 0; i < entries; i++) {
590 MOVDref *dref = &sc->drefs[i];
591 uint32_t size = avio_rb32(pb);
592 int64_t next = avio_tell(pb) + size - 4;
595 return AVERROR_INVALIDDATA;
597 dref->type = avio_rl32(pb);
598 avio_rb32(pb); // version + flags
599 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
601 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
602 /* macintosh alias record */
603 uint16_t volume_len, len;
609 volume_len = avio_r8(pb);
610 volume_len = FFMIN(volume_len, 27);
611 ret = ffio_read_size(pb, dref->volume, 27);
614 dref->volume[volume_len] = 0;
615 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
620 len = FFMIN(len, 63);
621 ret = ffio_read_size(pb, dref->filename, 63);
624 dref->filename[len] = 0;
625 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
629 /* read next level up_from_alias/down_to_target */
630 dref->nlvl_from = avio_rb16(pb);
631 dref->nlvl_to = avio_rb16(pb);
632 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
633 dref->nlvl_from, dref->nlvl_to);
637 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
640 type = avio_rb16(pb);
642 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
645 if (type == 2) { // absolute path
647 dref->path = av_mallocz(len+1);
649 return AVERROR(ENOMEM);
651 ret = ffio_read_size(pb, dref->path, len);
653 av_freep(&dref->path);
656 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
658 memmove(dref->path, dref->path+volume_len, len);
661 // trim string of any ending zeros
662 for (j = len - 1; j >= 0; j--) {
663 if (dref->path[j] == 0)
668 for (j = 0; j < len; j++)
669 if (dref->path[j] == ':' || dref->path[j] == 0)
671 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
672 } else if (type == 0) { // directory name
674 dref->dir = av_malloc(len+1);
676 return AVERROR(ENOMEM);
678 ret = ffio_read_size(pb, dref->dir, len);
680 av_freep(&dref->dir);
684 for (j = 0; j < len; j++)
685 if (dref->dir[j] == ':')
687 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
692 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x%08x size %d\n",
697 avio_seek(pb, next, SEEK_SET);
702 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
706 uint32_t av_unused ctype;
711 avio_r8(pb); /* version */
712 avio_rb24(pb); /* flags */
715 ctype = avio_rl32(pb);
716 type = avio_rl32(pb); /* component subtype */
718 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
719 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
721 if (c->trak_index < 0) { // meta not inside a trak
722 if (type == MKTAG('m','d','t','a')) {
723 c->found_hdlr_mdta = 1;
728 st = c->fc->streams[c->fc->nb_streams-1];
730 if (type == MKTAG('v','i','d','e'))
731 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
732 else if (type == MKTAG('s','o','u','n'))
733 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
734 else if (type == MKTAG('m','1','a',' '))
735 st->codecpar->codec_id = AV_CODEC_ID_MP2;
736 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
737 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
739 avio_rb32(pb); /* component manufacture */
740 avio_rb32(pb); /* component flags */
741 avio_rb32(pb); /* component flags mask */
743 title_size = atom.size - 24;
744 if (title_size > 0) {
745 if (title_size > FFMIN(INT_MAX, SIZE_MAX-1))
746 return AVERROR_INVALIDDATA;
747 title_str = av_malloc(title_size + 1); /* Add null terminator */
749 return AVERROR(ENOMEM);
751 ret = ffio_read_size(pb, title_str, title_size);
753 av_freep(&title_str);
756 title_str[title_size] = 0;
758 int off = (!c->isom && title_str[0] == title_size - 1);
759 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
761 av_freep(&title_str);
767 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
772 if (fc->nb_streams < 1)
774 st = fc->streams[fc->nb_streams-1];
776 avio_rb32(pb); /* version + flags */
777 ff_mp4_read_descr(fc, pb, &tag);
778 if (tag == MP4ESDescrTag) {
779 ff_mp4_parse_es_descr(pb, NULL);
781 avio_rb16(pb); /* ID */
783 ff_mp4_read_descr(fc, pb, &tag);
784 if (tag == MP4DecConfigDescrTag)
785 ff_mp4_read_dec_config_descr(fc, st, pb);
789 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
791 return ff_mov_read_esds(c->fc, pb);
794 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
797 enum AVAudioServiceType *ast;
798 int ac3info, acmod, lfeon, bsmod;
800 if (c->fc->nb_streams < 1)
802 st = c->fc->streams[c->fc->nb_streams-1];
804 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
807 return AVERROR(ENOMEM);
809 ac3info = avio_rb24(pb);
810 bsmod = (ac3info >> 14) & 0x7;
811 acmod = (ac3info >> 11) & 0x7;
812 lfeon = (ac3info >> 10) & 0x1;
813 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
814 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
816 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
818 if (st->codecpar->channels > 1 && bsmod == 0x7)
819 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
821 #if FF_API_LAVF_AVCTX
822 FF_DISABLE_DEPRECATION_WARNINGS
823 st->codec->audio_service_type = *ast;
824 FF_ENABLE_DEPRECATION_WARNINGS
830 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
833 enum AVAudioServiceType *ast;
834 int eac3info, acmod, lfeon, bsmod;
836 if (c->fc->nb_streams < 1)
838 st = c->fc->streams[c->fc->nb_streams-1];
840 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
843 return AVERROR(ENOMEM);
845 /* No need to parse fields for additional independent substreams and its
846 * associated dependent substreams since libavcodec's E-AC-3 decoder
847 * does not support them yet. */
848 avio_rb16(pb); /* data_rate and num_ind_sub */
849 eac3info = avio_rb24(pb);
850 bsmod = (eac3info >> 12) & 0x1f;
851 acmod = (eac3info >> 9) & 0x7;
852 lfeon = (eac3info >> 8) & 0x1;
853 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
855 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
856 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
858 if (st->codecpar->channels > 1 && bsmod == 0x7)
859 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
861 #if FF_API_LAVF_AVCTX
862 FF_DISABLE_DEPRECATION_WARNINGS
863 st->codec->audio_service_type = *ast;
864 FF_ENABLE_DEPRECATION_WARNINGS
870 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
872 const uint32_t ddts_size = 20;
875 uint32_t frame_duration_code = 0;
876 uint32_t channel_layout_code = 0;
879 buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
881 return AVERROR(ENOMEM);
883 if (avio_read(pb, buf, ddts_size) < ddts_size) {
885 return AVERROR_INVALIDDATA;
888 init_get_bits(&gb, buf, 8*ddts_size);
890 if (c->fc->nb_streams < 1) {
893 st = c->fc->streams[c->fc->nb_streams-1];
895 st->codecpar->sample_rate = get_bits_long(&gb, 32);
896 if (st->codecpar->sample_rate <= 0) {
897 av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate);
898 return AVERROR_INVALIDDATA;
900 skip_bits_long(&gb, 32); /* max bitrate */
901 st->codecpar->bit_rate = get_bits_long(&gb, 32);
902 st->codecpar->bits_per_coded_sample = get_bits(&gb, 8);
903 frame_duration_code = get_bits(&gb, 2);
904 skip_bits(&gb, 30); /* various fields */
905 channel_layout_code = get_bits(&gb, 16);
907 st->codecpar->frame_size =
908 (frame_duration_code == 0) ? 512 :
909 (frame_duration_code == 1) ? 1024 :
910 (frame_duration_code == 2) ? 2048 :
911 (frame_duration_code == 3) ? 4096 : 0;
913 if (channel_layout_code > 0xff) {
914 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
916 st->codecpar->channel_layout =
917 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
918 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
919 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
920 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
921 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
922 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
924 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
929 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
933 if (c->fc->nb_streams < 1)
935 st = c->fc->streams[c->fc->nb_streams-1];
940 /* skip version and flags */
943 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
948 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
953 if (c->fc->nb_streams < 1)
955 st = c->fc->streams[c->fc->nb_streams-1];
957 if ((ret = ff_get_wav_header(c->fc, pb, st->codecpar, atom.size, 0)) < 0)
958 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
963 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
965 const int num = avio_rb32(pb);
966 const int den = avio_rb32(pb);
969 if (c->fc->nb_streams < 1)
971 st = c->fc->streams[c->fc->nb_streams-1];
973 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
974 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
975 av_log(c->fc, AV_LOG_WARNING,
976 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
977 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
979 } else if (den != 0) {
980 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
986 /* this atom contains actual media data */
987 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
989 if (atom.size == 0) /* wrong one (MP4) */
992 return 0; /* now go for moov */
995 #define DRM_BLOB_SIZE 56
997 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
999 uint8_t intermediate_key[20];
1000 uint8_t intermediate_iv[20];
1003 uint8_t file_checksum[20];
1004 uint8_t calculated_checksum[20];
1008 uint8_t *activation_bytes = c->activation_bytes;
1009 uint8_t *fixed_key = c->audible_fixed_key;
1013 sha = av_sha_alloc();
1015 return AVERROR(ENOMEM);
1016 c->aes_decrypt = av_aes_alloc();
1017 if (!c->aes_decrypt) {
1018 ret = AVERROR(ENOMEM);
1022 /* drm blob processing */
1023 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
1024 avio_read(pb, input, DRM_BLOB_SIZE);
1025 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
1026 avio_read(pb, file_checksum, 20);
1028 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
1029 for (i = 0; i < 20; i++)
1030 av_log(c->fc, AV_LOG_INFO, "%02x", file_checksum[i]);
1031 av_log(c->fc, AV_LOG_INFO, "\n");
1033 /* verify activation data */
1034 if (!activation_bytes) {
1035 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
1036 ret = 0; /* allow ffprobe to continue working on .aax files */
1039 if (c->activation_bytes_size != 4) {
1040 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
1041 ret = AVERROR(EINVAL);
1045 /* verify fixed key */
1046 if (c->audible_fixed_key_size != 16) {
1047 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
1048 ret = AVERROR(EINVAL);
1052 /* AAX (and AAX+) key derivation */
1053 av_sha_init(sha, 160);
1054 av_sha_update(sha, fixed_key, 16);
1055 av_sha_update(sha, activation_bytes, 4);
1056 av_sha_final(sha, intermediate_key);
1057 av_sha_init(sha, 160);
1058 av_sha_update(sha, fixed_key, 16);
1059 av_sha_update(sha, intermediate_key, 20);
1060 av_sha_update(sha, activation_bytes, 4);
1061 av_sha_final(sha, intermediate_iv);
1062 av_sha_init(sha, 160);
1063 av_sha_update(sha, intermediate_key, 16);
1064 av_sha_update(sha, intermediate_iv, 16);
1065 av_sha_final(sha, calculated_checksum);
1066 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
1067 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
1068 ret = AVERROR_INVALIDDATA;
1071 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
1072 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
1073 for (i = 0; i < 4; i++) {
1074 // file data (in output) is stored in big-endian mode
1075 if (activation_bytes[i] != output[3 - i]) { // critical error
1076 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
1077 ret = AVERROR_INVALIDDATA;
1081 memcpy(c->file_key, output + 8, 16);
1082 memcpy(input, output + 26, 16);
1083 av_sha_init(sha, 160);
1084 av_sha_update(sha, input, 16);
1085 av_sha_update(sha, c->file_key, 16);
1086 av_sha_update(sha, fixed_key, 16);
1087 av_sha_final(sha, c->file_iv);
1095 // Audible AAX (and AAX+) bytestream decryption
1096 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1099 unsigned char iv[16];
1101 memcpy(iv, c->file_iv, 16); // iv is overwritten
1102 blocks = size >> 4; // trailing bytes are not encrypted!
1103 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1104 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1109 /* read major brand, minor version and compatible brands and store them as metadata */
1110 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1113 int comp_brand_size;
1114 char* comp_brands_str;
1115 uint8_t type[5] = {0};
1116 int ret = ffio_read_size(pb, type, 4);
1120 if (strcmp(type, "qt "))
1122 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1123 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1124 minor_ver = avio_rb32(pb); /* minor version */
1125 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1127 comp_brand_size = atom.size - 8;
1128 if (comp_brand_size < 0)
1129 return AVERROR_INVALIDDATA;
1130 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1131 if (!comp_brands_str)
1132 return AVERROR(ENOMEM);
1134 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1136 av_freep(&comp_brands_str);
1139 comp_brands_str[comp_brand_size] = 0;
1140 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1141 av_freep(&comp_brands_str);
1146 /* this atom should contain all header atoms */
1147 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1151 if (c->found_moov) {
1152 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1153 avio_skip(pb, atom.size);
1157 if ((ret = mov_read_default(c, pb, atom)) < 0)
1159 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1160 /* so we don't parse the whole file if over a network */
1162 return 0; /* now go for mdat */
1165 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1167 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1168 c->has_looked_for_mfra = 1;
1169 if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
1171 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1173 if ((ret = mov_read_mfra(c, pb)) < 0) {
1174 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1175 "read the mfra (may be a live ismv)\n");
1178 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1179 "seekable, can not look for mfra\n");
1182 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1183 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1184 return mov_read_default(c, pb, atom);
1187 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1190 if(time >= 2082844800)
1191 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1192 avpriv_dict_set_timestamp(metadata, "creation_time", time * 1000000);
1196 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1199 MOVStreamContext *sc;
1201 char language[4] = {0};
1203 int64_t creation_time;
1205 if (c->fc->nb_streams < 1)
1207 st = c->fc->streams[c->fc->nb_streams-1];
1210 if (sc->time_scale) {
1211 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1212 return AVERROR_INVALIDDATA;
1215 version = avio_r8(pb);
1217 avpriv_request_sample(c->fc, "Version %d", version);
1218 return AVERROR_PATCHWELCOME;
1220 avio_rb24(pb); /* flags */
1222 creation_time = avio_rb64(pb);
1225 creation_time = avio_rb32(pb);
1226 avio_rb32(pb); /* modification time */
1228 mov_metadata_creation_time(&st->metadata, creation_time);
1230 sc->time_scale = avio_rb32(pb);
1231 if (sc->time_scale <= 0) {
1232 av_log(c->fc, AV_LOG_ERROR, "Invalid mdhd time scale %d\n", sc->time_scale);
1233 return AVERROR_INVALIDDATA;
1235 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1237 lang = avio_rb16(pb); /* language */
1238 if (ff_mov_lang_to_iso639(lang, language))
1239 av_dict_set(&st->metadata, "language", language, 0);
1240 avio_rb16(pb); /* quality */
1245 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1248 int64_t creation_time;
1249 int version = avio_r8(pb); /* version */
1250 avio_rb24(pb); /* flags */
1253 creation_time = avio_rb64(pb);
1256 creation_time = avio_rb32(pb);
1257 avio_rb32(pb); /* modification time */
1259 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1260 c->time_scale = avio_rb32(pb); /* time scale */
1261 if (c->time_scale <= 0) {
1262 av_log(c->fc, AV_LOG_ERROR, "Invalid mvhd time scale %d\n", c->time_scale);
1263 return AVERROR_INVALIDDATA;
1265 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1267 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1268 // set the AVCodecContext duration because the duration of individual tracks
1269 // may be inaccurate
1270 if (c->time_scale > 0 && !c->trex_data)
1271 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1272 avio_rb32(pb); /* preferred scale */
1274 avio_rb16(pb); /* preferred volume */
1276 avio_skip(pb, 10); /* reserved */
1278 /* movie display matrix, store it in main context and use it later on */
1279 for (i = 0; i < 3; i++) {
1280 c->movie_display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
1281 c->movie_display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
1282 c->movie_display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
1285 avio_rb32(pb); /* preview time */
1286 avio_rb32(pb); /* preview duration */
1287 avio_rb32(pb); /* poster time */
1288 avio_rb32(pb); /* selection time */
1289 avio_rb32(pb); /* selection duration */
1290 avio_rb32(pb); /* current time */
1291 avio_rb32(pb); /* next track ID */
1296 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1301 if (c->fc->nb_streams < 1)
1303 st = c->fc->streams[c->fc->nb_streams-1];
1305 little_endian = avio_rb16(pb) & 0xFF;
1306 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1307 if (little_endian == 1) {
1308 switch (st->codecpar->codec_id) {
1309 case AV_CODEC_ID_PCM_S24BE:
1310 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1312 case AV_CODEC_ID_PCM_S32BE:
1313 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1315 case AV_CODEC_ID_PCM_F32BE:
1316 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1318 case AV_CODEC_ID_PCM_F64BE:
1319 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1328 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1331 char color_parameter_type[5] = { 0 };
1332 uint16_t color_primaries, color_trc, color_matrix;
1335 if (c->fc->nb_streams < 1)
1337 st = c->fc->streams[c->fc->nb_streams - 1];
1339 ret = ffio_read_size(pb, color_parameter_type, 4);
1342 if (strncmp(color_parameter_type, "nclx", 4) &&
1343 strncmp(color_parameter_type, "nclc", 4)) {
1344 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1345 color_parameter_type);
1349 color_primaries = avio_rb16(pb);
1350 color_trc = avio_rb16(pb);
1351 color_matrix = avio_rb16(pb);
1353 av_log(c->fc, AV_LOG_TRACE,
1354 "%s: pri %d trc %d matrix %d",
1355 color_parameter_type, color_primaries, color_trc, color_matrix);
1357 if (!strncmp(color_parameter_type, "nclx", 4)) {
1358 uint8_t color_range = avio_r8(pb) >> 7;
1359 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1361 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1363 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1365 if (color_primaries >= AVCOL_PRI_NB)
1366 color_primaries = AVCOL_PRI_UNSPECIFIED;
1367 if (color_trc >= AVCOL_TRC_NB)
1368 color_trc = AVCOL_TRC_UNSPECIFIED;
1369 if (color_matrix >= AVCOL_SPC_NB)
1370 color_matrix = AVCOL_SPC_UNSPECIFIED;
1371 st->codecpar->color_primaries = color_primaries;
1372 st->codecpar->color_trc = color_trc;
1373 st->codecpar->color_space = color_matrix;
1374 av_log(c->fc, AV_LOG_TRACE, "\n");
1379 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1382 unsigned mov_field_order;
1383 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1385 if (c->fc->nb_streams < 1) // will happen with jp2 files
1387 st = c->fc->streams[c->fc->nb_streams-1];
1389 return AVERROR_INVALIDDATA;
1390 mov_field_order = avio_rb16(pb);
1391 if ((mov_field_order & 0xFF00) == 0x0100)
1392 decoded_field_order = AV_FIELD_PROGRESSIVE;
1393 else if ((mov_field_order & 0xFF00) == 0x0200) {
1394 switch (mov_field_order & 0xFF) {
1395 case 0x01: decoded_field_order = AV_FIELD_TT;
1397 case 0x06: decoded_field_order = AV_FIELD_BB;
1399 case 0x09: decoded_field_order = AV_FIELD_TB;
1401 case 0x0E: decoded_field_order = AV_FIELD_BT;
1405 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1406 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1408 st->codecpar->field_order = decoded_field_order;
1413 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1416 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1417 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1418 return AVERROR_INVALIDDATA;
1419 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1420 par->extradata_size = 0;
1423 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1427 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1428 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1429 AVCodecParameters *par, uint8_t *buf)
1431 int64_t result = atom.size;
1434 AV_WB32(buf , atom.size + 8);
1435 AV_WL32(buf + 4, atom.type);
1436 err = ffio_read_size(pb, buf + 8, atom.size);
1438 par->extradata_size -= atom.size;
1440 } else if (err < atom.size) {
1441 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1442 par->extradata_size -= atom.size - err;
1445 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1449 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1450 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1451 enum AVCodecID codec_id)
1454 uint64_t original_size;
1457 if (c->fc->nb_streams < 1) // will happen with jp2 files
1459 st = c->fc->streams[c->fc->nb_streams-1];
1461 if (st->codecpar->codec_id != codec_id)
1462 return 0; /* unexpected codec_id - don't mess with extradata */
1464 original_size = st->codecpar->extradata_size;
1465 err = mov_realloc_extradata(st->codecpar, atom);
1469 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1472 return 0; // Note: this is the original behavior to ignore truncation.
1475 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1476 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1478 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1481 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1483 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1486 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1488 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1491 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1493 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1496 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1498 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1500 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1504 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1506 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1508 if (!ret && c->fc->nb_streams >= 1) {
1509 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1510 if (par->extradata_size >= 40) {
1511 par->height = AV_RB16(&par->extradata[36]);
1512 par->width = AV_RB16(&par->extradata[38]);
1518 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1520 if (c->fc->nb_streams >= 1) {
1521 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1522 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1523 par->codec_id == AV_CODEC_ID_H264 &&
1527 cid = avio_rb16(pb);
1528 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1529 if (cid == 0xd4d || cid == 0xd4e)
1532 } else if ((par->codec_tag == MKTAG('A', 'V', 'd', '1') ||
1533 par->codec_tag == MKTAG('A', 'V', 'd', 'n')) &&
1537 num = avio_rb32(pb);
1538 den = avio_rb32(pb);
1539 if (num <= 0 || den <= 0)
1541 switch (avio_rb32(pb)) {
1543 if (den >= INT_MAX / 2)
1547 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1548 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1555 return mov_read_avid(c, pb, atom);
1558 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1562 uint64_t original_size;
1563 if (c->fc->nb_streams >= 1) {
1564 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1565 if (par->codec_id == AV_CODEC_ID_H264)
1567 if (atom.size == 16) {
1568 original_size = par->extradata_size;
1569 ret = mov_realloc_extradata(par, atom);
1571 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1572 if (length == atom.size) {
1573 const uint8_t range_value = par->extradata[original_size + 19];
1574 switch (range_value) {
1576 par->color_range = AVCOL_RANGE_MPEG;
1579 par->color_range = AVCOL_RANGE_JPEG;
1582 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1585 ff_dlog(c, "color_range: %d\n", par->color_range);
1587 /* For some reason the whole atom was not added to the extradata */
1588 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1591 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1594 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1601 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1603 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1606 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1611 if (c->fc->nb_streams < 1)
1613 st = c->fc->streams[c->fc->nb_streams-1];
1615 if ((uint64_t)atom.size > (1<<30))
1616 return AVERROR_INVALIDDATA;
1618 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1619 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1620 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1621 // pass all frma atom to codec, needed at least for QDMC and QDM2
1622 av_freep(&st->codecpar->extradata);
1623 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1626 } else if (atom.size > 8) { /* to read frma, esds atoms */
1627 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1629 ret = ffio_ensure_seekback(pb, 8);
1632 buffer = avio_rb64(pb);
1634 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1635 && buffer >> 32 <= atom.size
1636 && buffer >> 32 >= 8) {
1639 } else if (!st->codecpar->extradata_size) {
1640 #define ALAC_EXTRADATA_SIZE 36
1641 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1642 if (!st->codecpar->extradata)
1643 return AVERROR(ENOMEM);
1644 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1645 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1646 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1647 AV_WB64(st->codecpar->extradata + 12, buffer);
1648 avio_read(pb, st->codecpar->extradata + 20, 16);
1649 avio_skip(pb, atom.size - 24);
1653 if ((ret = mov_read_default(c, pb, atom)) < 0)
1656 avio_skip(pb, atom.size);
1661 * This function reads atom content and puts data in extradata without tag
1662 * nor size unlike mov_read_extradata.
1664 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1669 if (c->fc->nb_streams < 1)
1671 st = c->fc->streams[c->fc->nb_streams-1];
1673 if ((uint64_t)atom.size > (1<<30))
1674 return AVERROR_INVALIDDATA;
1676 if (atom.size >= 10) {
1677 // Broken files created by legacy versions of libavformat will
1678 // wrap a whole fiel atom inside of a glbl atom.
1679 unsigned size = avio_rb32(pb);
1680 unsigned type = avio_rl32(pb);
1681 avio_seek(pb, -8, SEEK_CUR);
1682 if (type == MKTAG('f','i','e','l') && size == atom.size)
1683 return mov_read_default(c, pb, atom);
1685 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1686 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1689 av_freep(&st->codecpar->extradata);
1690 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1697 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1700 uint8_t profile_level;
1703 if (c->fc->nb_streams < 1)
1705 st = c->fc->streams[c->fc->nb_streams-1];
1707 if (atom.size >= (1<<28) || atom.size < 7)
1708 return AVERROR_INVALIDDATA;
1710 profile_level = avio_r8(pb);
1711 if ((profile_level & 0xf0) != 0xc0)
1714 avio_seek(pb, 6, SEEK_CUR);
1715 av_freep(&st->codecpar->extradata);
1716 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1724 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1725 * but can have extradata appended at the end after the 40 bytes belonging
1728 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1733 if (c->fc->nb_streams < 1)
1735 if (atom.size <= 40)
1737 st = c->fc->streams[c->fc->nb_streams-1];
1739 if ((uint64_t)atom.size > (1<<30))
1740 return AVERROR_INVALIDDATA;
1743 av_freep(&st->codecpar->extradata);
1744 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1751 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1754 MOVStreamContext *sc;
1755 unsigned int i, entries;
1757 if (c->fc->nb_streams < 1)
1759 st = c->fc->streams[c->fc->nb_streams-1];
1762 avio_r8(pb); /* version */
1763 avio_rb24(pb); /* flags */
1765 entries = avio_rb32(pb);
1770 if (sc->chunk_offsets)
1771 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1772 av_free(sc->chunk_offsets);
1773 sc->chunk_count = 0;
1774 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1775 if (!sc->chunk_offsets)
1776 return AVERROR(ENOMEM);
1777 sc->chunk_count = entries;
1779 if (atom.type == MKTAG('s','t','c','o'))
1780 for (i = 0; i < entries && !pb->eof_reached; i++)
1781 sc->chunk_offsets[i] = avio_rb32(pb);
1782 else if (atom.type == MKTAG('c','o','6','4'))
1783 for (i = 0; i < entries && !pb->eof_reached; i++)
1784 sc->chunk_offsets[i] = avio_rb64(pb);
1786 return AVERROR_INVALIDDATA;
1788 sc->chunk_count = i;
1790 if (pb->eof_reached)
1797 * Compute codec id for 'lpcm' tag.
1798 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1800 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1807 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1810 static int mov_codec_id(AVStream *st, uint32_t format)
1812 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1815 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1816 (format & 0xFFFF) == 'T' + ('S' << 8)))
1817 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1819 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1820 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1821 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1822 /* skip old ASF MPEG-4 tag */
1823 format && format != MKTAG('m','p','4','s')) {
1824 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1826 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1828 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1829 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1830 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1831 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1832 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1834 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1838 st->codecpar->codec_tag = format;
1843 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1844 AVStream *st, MOVStreamContext *sc)
1846 uint8_t codec_name[32] = { 0 };
1850 /* The first 16 bytes of the video sample description are already
1851 * read in ff_mov_read_stsd_entries() */
1852 stsd_start = avio_tell(pb) - 16;
1854 avio_rb16(pb); /* version */
1855 avio_rb16(pb); /* revision level */
1856 avio_rb32(pb); /* vendor */
1857 avio_rb32(pb); /* temporal quality */
1858 avio_rb32(pb); /* spatial quality */
1860 st->codecpar->width = avio_rb16(pb); /* width */
1861 st->codecpar->height = avio_rb16(pb); /* height */
1863 avio_rb32(pb); /* horiz resolution */
1864 avio_rb32(pb); /* vert resolution */
1865 avio_rb32(pb); /* data size, always 0 */
1866 avio_rb16(pb); /* frames per samples */
1868 len = avio_r8(pb); /* codec name, pascal string */
1871 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1873 avio_skip(pb, 31 - len);
1876 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1878 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1879 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1880 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1881 st->codecpar->width &= ~1;
1882 st->codecpar->height &= ~1;
1884 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1885 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1886 !memcmp(codec_name, "Sorenson H263", 13))
1887 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1889 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1891 avio_seek(pb, stsd_start, SEEK_SET);
1893 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1894 st->codecpar->bits_per_coded_sample &= 0x1F;
1895 sc->has_palette = 1;
1899 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1900 AVStream *st, MOVStreamContext *sc)
1902 int bits_per_sample, flags;
1903 uint16_t version = avio_rb16(pb);
1904 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1906 avio_rb16(pb); /* revision level */
1907 avio_rb32(pb); /* vendor */
1909 st->codecpar->channels = avio_rb16(pb); /* channel count */
1910 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1911 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1913 sc->audio_cid = avio_rb16(pb);
1914 avio_rb16(pb); /* packet size = 0 */
1916 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1918 // Read QT version 1 fields. In version 0 these do not exist.
1919 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1921 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1924 sc->samples_per_frame = avio_rb32(pb);
1925 avio_rb32(pb); /* bytes per packet */
1926 sc->bytes_per_frame = avio_rb32(pb);
1927 avio_rb32(pb); /* bytes per sample */
1928 } else if (version == 2) {
1929 avio_rb32(pb); /* sizeof struct only */
1930 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1931 st->codecpar->channels = avio_rb32(pb);
1932 avio_rb32(pb); /* always 0x7F000000 */
1933 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1935 flags = avio_rb32(pb); /* lpcm format specific flag */
1936 sc->bytes_per_frame = avio_rb32(pb);
1937 sc->samples_per_frame = avio_rb32(pb);
1938 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1939 st->codecpar->codec_id =
1940 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1943 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1944 /* can't correctly handle variable sized packet as audio unit */
1945 switch (st->codecpar->codec_id) {
1946 case AV_CODEC_ID_MP2:
1947 case AV_CODEC_ID_MP3:
1948 st->need_parsing = AVSTREAM_PARSE_FULL;
1954 if (sc->format == 0) {
1955 if (st->codecpar->bits_per_coded_sample == 8)
1956 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1957 else if (st->codecpar->bits_per_coded_sample == 16)
1958 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1961 switch (st->codecpar->codec_id) {
1962 case AV_CODEC_ID_PCM_S8:
1963 case AV_CODEC_ID_PCM_U8:
1964 if (st->codecpar->bits_per_coded_sample == 16)
1965 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1967 case AV_CODEC_ID_PCM_S16LE:
1968 case AV_CODEC_ID_PCM_S16BE:
1969 if (st->codecpar->bits_per_coded_sample == 8)
1970 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1971 else if (st->codecpar->bits_per_coded_sample == 24)
1972 st->codecpar->codec_id =
1973 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1974 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1975 else if (st->codecpar->bits_per_coded_sample == 32)
1976 st->codecpar->codec_id =
1977 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1978 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1980 /* set values for old format before stsd version 1 appeared */
1981 case AV_CODEC_ID_MACE3:
1982 sc->samples_per_frame = 6;
1983 sc->bytes_per_frame = 2 * st->codecpar->channels;
1985 case AV_CODEC_ID_MACE6:
1986 sc->samples_per_frame = 6;
1987 sc->bytes_per_frame = 1 * st->codecpar->channels;
1989 case AV_CODEC_ID_ADPCM_IMA_QT:
1990 sc->samples_per_frame = 64;
1991 sc->bytes_per_frame = 34 * st->codecpar->channels;
1993 case AV_CODEC_ID_GSM:
1994 sc->samples_per_frame = 160;
1995 sc->bytes_per_frame = 33;
2001 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
2002 if (bits_per_sample) {
2003 st->codecpar->bits_per_coded_sample = bits_per_sample;
2004 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
2008 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
2009 AVStream *st, MOVStreamContext *sc,
2012 // ttxt stsd contains display flags, justification, background
2013 // color, fonts, and default styles, so fake an atom to read it
2014 MOVAtom fake_atom = { .size = size };
2015 // mp4s contains a regular esds atom
2016 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
2017 mov_read_glbl(c, pb, fake_atom);
2018 st->codecpar->width = sc->width;
2019 st->codecpar->height = sc->height;
2022 static uint32_t yuv_to_rgba(uint32_t ycbcr)
2027 y = (ycbcr >> 16) & 0xFF;
2028 cr = (ycbcr >> 8) & 0xFF;
2031 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
2032 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
2033 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
2035 return (r << 16) | (g << 8) | b;
2038 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
2040 char buf[256] = {0};
2041 uint8_t *src = st->codecpar->extradata;
2044 if (st->codecpar->extradata_size != 64)
2047 if (st->codecpar->width > 0 && st->codecpar->height > 0)
2048 snprintf(buf, sizeof(buf), "size: %dx%d\n",
2049 st->codecpar->width, st->codecpar->height);
2050 av_strlcat(buf, "palette: ", sizeof(buf));
2052 for (i = 0; i < 16; i++) {
2053 uint32_t yuv = AV_RB32(src + i * 4);
2054 uint32_t rgba = yuv_to_rgba(yuv);
2056 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2059 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2062 av_freep(&st->codecpar->extradata);
2063 st->codecpar->extradata_size = 0;
2064 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2065 if (!st->codecpar->extradata)
2066 return AVERROR(ENOMEM);
2067 st->codecpar->extradata_size = strlen(buf);
2068 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2073 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2074 AVStream *st, MOVStreamContext *sc,
2079 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2080 if ((int)size != size)
2081 return AVERROR(ENOMEM);
2083 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2087 MOVStreamContext *tmcd_ctx = st->priv_data;
2089 val = AV_RB32(st->codecpar->extradata + 4);
2090 tmcd_ctx->tmcd_flags = val;
2091 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2092 st->avg_frame_rate.den = 1;
2093 #if FF_API_LAVF_AVCTX
2094 FF_DISABLE_DEPRECATION_WARNINGS
2095 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2096 FF_ENABLE_DEPRECATION_WARNINGS
2098 /* adjust for per frame dur in counter mode */
2099 if (tmcd_ctx->tmcd_flags & 0x0008) {
2100 int timescale = AV_RB32(st->codecpar->extradata + 8);
2101 int framedur = AV_RB32(st->codecpar->extradata + 12);
2102 st->avg_frame_rate.num *= timescale;
2103 st->avg_frame_rate.den *= framedur;
2104 #if FF_API_LAVF_AVCTX
2105 FF_DISABLE_DEPRECATION_WARNINGS
2106 st->codec->time_base.den *= timescale;
2107 st->codec->time_base.num *= framedur;
2108 FF_ENABLE_DEPRECATION_WARNINGS
2112 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2113 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2114 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2115 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2116 if (str_size > 0 && size >= (int)str_size + 26) {
2117 char *reel_name = av_malloc(str_size + 1);
2119 return AVERROR(ENOMEM);
2120 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2121 reel_name[str_size] = 0; /* Add null terminator */
2122 /* don't add reel_name if emtpy string */
2123 if (*reel_name == 0) {
2126 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2133 /* other codec type, just skip (rtp, mp4s ...) */
2134 avio_skip(pb, size);
2139 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2140 AVStream *st, MOVStreamContext *sc)
2142 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2143 !st->codecpar->sample_rate && sc->time_scale > 1)
2144 st->codecpar->sample_rate = sc->time_scale;
2146 /* special codec parameters handling */
2147 switch (st->codecpar->codec_id) {
2148 #if CONFIG_DV_DEMUXER
2149 case AV_CODEC_ID_DVAUDIO:
2150 c->dv_fctx = avformat_alloc_context();
2152 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2153 return AVERROR(ENOMEM);
2155 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2157 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2158 return AVERROR(ENOMEM);
2160 sc->dv_audio_container = 1;
2161 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2164 /* no ifdef since parameters are always those */
2165 case AV_CODEC_ID_QCELP:
2166 st->codecpar->channels = 1;
2167 // force sample rate for qcelp when not stored in mov
2168 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2169 st->codecpar->sample_rate = 8000;
2170 // FIXME: Why is the following needed for some files?
2171 sc->samples_per_frame = 160;
2172 if (!sc->bytes_per_frame)
2173 sc->bytes_per_frame = 35;
2175 case AV_CODEC_ID_AMR_NB:
2176 st->codecpar->channels = 1;
2177 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2178 st->codecpar->sample_rate = 8000;
2180 case AV_CODEC_ID_AMR_WB:
2181 st->codecpar->channels = 1;
2182 st->codecpar->sample_rate = 16000;
2184 case AV_CODEC_ID_MP2:
2185 case AV_CODEC_ID_MP3:
2186 /* force type after stsd for m1a hdlr */
2187 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2189 case AV_CODEC_ID_GSM:
2190 case AV_CODEC_ID_ADPCM_MS:
2191 case AV_CODEC_ID_ADPCM_IMA_WAV:
2192 case AV_CODEC_ID_ILBC:
2193 case AV_CODEC_ID_MACE3:
2194 case AV_CODEC_ID_MACE6:
2195 case AV_CODEC_ID_QDM2:
2196 st->codecpar->block_align = sc->bytes_per_frame;
2198 case AV_CODEC_ID_ALAC:
2199 if (st->codecpar->extradata_size == 36) {
2200 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2201 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2204 case AV_CODEC_ID_AC3:
2205 case AV_CODEC_ID_EAC3:
2206 case AV_CODEC_ID_MPEG1VIDEO:
2207 case AV_CODEC_ID_VC1:
2208 case AV_CODEC_ID_VP9:
2209 st->need_parsing = AVSTREAM_PARSE_FULL;
2217 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2218 int codec_tag, int format,
2221 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2224 (codec_tag != format &&
2225 // AVID 1:1 samples with differing data format and codec tag exist
2226 (codec_tag != AV_RL32("AV1x") || format != AV_RL32("AVup")) &&
2227 // prores is allowed to have differing data format and codec tag
2228 codec_tag != AV_RL32("apcn") && codec_tag != AV_RL32("apch") &&
2230 codec_tag != AV_RL32("dvpp") && codec_tag != AV_RL32("dvcp") &&
2231 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2232 : codec_tag != MKTAG('j','p','e','g')))) {
2233 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2234 * export it as a separate AVStream but this needs a few changes
2235 * in the MOV demuxer, patch welcome. */
2237 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2238 avio_skip(pb, size);
2245 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2248 MOVStreamContext *sc;
2249 int pseudo_stream_id;
2251 if (c->fc->nb_streams < 1)
2253 st = c->fc->streams[c->fc->nb_streams-1];
2256 for (pseudo_stream_id = 0;
2257 pseudo_stream_id < entries && !pb->eof_reached;
2258 pseudo_stream_id++) {
2259 //Parsing Sample description table
2261 int ret, dref_id = 1;
2262 MOVAtom a = { AV_RL32("stsd") };
2263 int64_t start_pos = avio_tell(pb);
2264 int64_t size = avio_rb32(pb); /* size */
2265 uint32_t format = avio_rl32(pb); /* data format */
2268 avio_rb32(pb); /* reserved */
2269 avio_rb16(pb); /* reserved */
2270 dref_id = avio_rb16(pb);
2271 } else if (size <= 7) {
2272 av_log(c->fc, AV_LOG_ERROR,
2273 "invalid size %"PRId64" in stsd\n", size);
2274 return AVERROR_INVALIDDATA;
2277 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2278 size - (avio_tell(pb) - start_pos)))
2281 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2282 sc->dref_id= dref_id;
2283 sc->format = format;
2285 id = mov_codec_id(st, format);
2287 av_log(c->fc, AV_LOG_TRACE,
2288 "size=%"PRId64" 4CC= %c%c%c%c/0x%08x codec_type=%d\n", size,
2289 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
2290 (format >> 24) & 0xff, format, st->codecpar->codec_type);
2292 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2293 st->codecpar->codec_id = id;
2294 mov_parse_stsd_video(c, pb, st, sc);
2295 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2296 st->codecpar->codec_id = id;
2297 mov_parse_stsd_audio(c, pb, st, sc);
2298 if (st->codecpar->sample_rate < 0) {
2299 av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate);
2300 return AVERROR_INVALIDDATA;
2302 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2303 st->codecpar->codec_id = id;
2304 mov_parse_stsd_subtitle(c, pb, st, sc,
2305 size - (avio_tell(pb) - start_pos));
2307 ret = mov_parse_stsd_data(c, pb, st, sc,
2308 size - (avio_tell(pb) - start_pos));
2312 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2313 a.size = size - (avio_tell(pb) - start_pos);
2315 if ((ret = mov_read_default(c, pb, a)) < 0)
2317 } else if (a.size > 0)
2318 avio_skip(pb, a.size);
2320 if (sc->extradata) {
2321 int extra_size = st->codecpar->extradata_size;
2323 /* Move the current stream extradata to the stream context one. */
2324 sc->extradata_size[pseudo_stream_id] = extra_size;
2325 sc->extradata[pseudo_stream_id] = av_malloc(extra_size + AV_INPUT_BUFFER_PADDING_SIZE);
2326 if (!sc->extradata[pseudo_stream_id])
2327 return AVERROR(ENOMEM);
2328 memcpy(sc->extradata[pseudo_stream_id], st->codecpar->extradata, extra_size);
2329 av_freep(&st->codecpar->extradata);
2330 st->codecpar->extradata_size = 0;
2334 if (pb->eof_reached)
2340 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2343 MOVStreamContext *sc;
2346 if (c->fc->nb_streams < 1)
2348 st = c->fc->streams[c->fc->nb_streams - 1];
2351 avio_r8(pb); /* version */
2352 avio_rb24(pb); /* flags */
2353 entries = avio_rb32(pb);
2356 av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
2357 return AVERROR_INVALIDDATA;
2360 if (sc->extradata) {
2361 av_log(c->fc, AV_LOG_ERROR, "Duplicate STSD\n");
2362 return AVERROR_INVALIDDATA;
2364 /* Prepare space for hosting multiple extradata. */
2365 sc->extradata = av_mallocz_array(entries, sizeof(*sc->extradata));
2366 sc->extradata_size = av_mallocz_array(entries, sizeof(*sc->extradata_size));
2367 if (!sc->extradata_size || !sc->extradata) {
2368 ret = AVERROR(ENOMEM);
2372 ret = ff_mov_read_stsd_entries(c, pb, entries);
2376 sc->stsd_count = entries;
2378 /* Restore back the primary extradata. */
2379 av_freep(&st->codecpar->extradata);
2380 st->codecpar->extradata_size = sc->extradata_size[0];
2381 if (sc->extradata_size[0]) {
2382 st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
2383 if (!st->codecpar->extradata)
2384 return AVERROR(ENOMEM);
2385 memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
2388 return mov_finalize_stsd_codec(c, pb, st, sc);
2390 av_freep(&sc->extradata);
2391 av_freep(&sc->extradata_size);
2395 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2398 MOVStreamContext *sc;
2399 unsigned int i, entries;
2401 if (c->fc->nb_streams < 1)
2403 st = c->fc->streams[c->fc->nb_streams-1];
2406 avio_r8(pb); /* version */
2407 avio_rb24(pb); /* flags */
2409 entries = avio_rb32(pb);
2411 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2416 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2417 av_free(sc->stsc_data);
2419 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2421 return AVERROR(ENOMEM);
2423 for (i = 0; i < entries && !pb->eof_reached; i++) {
2424 sc->stsc_data[i].first = avio_rb32(pb);
2425 sc->stsc_data[i].count = avio_rb32(pb);
2426 sc->stsc_data[i].id = avio_rb32(pb);
2431 if (pb->eof_reached)
2437 #define mov_stsc_index_valid(index, count) ((index) < (count) - 1)
2439 /* Compute the samples value for the stsc entry at the given index. */
2440 static inline int mov_get_stsc_samples(MOVStreamContext *sc, int index)
2444 if (mov_stsc_index_valid(index, sc->stsc_count))
2445 chunk_count = sc->stsc_data[index + 1].first - sc->stsc_data[index].first;
2447 chunk_count = sc->chunk_count - (sc->stsc_data[index].first - 1);
2449 return sc->stsc_data[index].count * chunk_count;
2452 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2455 MOVStreamContext *sc;
2456 unsigned i, entries;
2458 if (c->fc->nb_streams < 1)
2460 st = c->fc->streams[c->fc->nb_streams-1];
2463 avio_rb32(pb); // version + flags
2465 entries = avio_rb32(pb);
2467 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2468 av_free(sc->stps_data);
2470 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2472 return AVERROR(ENOMEM);
2474 for (i = 0; i < entries && !pb->eof_reached; i++) {
2475 sc->stps_data[i] = avio_rb32(pb);
2476 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2481 if (pb->eof_reached)
2487 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2490 MOVStreamContext *sc;
2491 unsigned int i, entries;
2493 if (c->fc->nb_streams < 1)
2495 st = c->fc->streams[c->fc->nb_streams-1];
2498 avio_r8(pb); /* version */
2499 avio_rb24(pb); /* flags */
2501 entries = avio_rb32(pb);
2503 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2507 sc->keyframe_absent = 1;
2508 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2509 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2513 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2514 if (entries >= UINT_MAX / sizeof(int))
2515 return AVERROR_INVALIDDATA;
2516 av_freep(&sc->keyframes);
2517 sc->keyframe_count = 0;
2518 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2520 return AVERROR(ENOMEM);
2522 for (i = 0; i < entries && !pb->eof_reached; i++) {
2523 sc->keyframes[i] = avio_rb32(pb);
2524 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2527 sc->keyframe_count = i;
2529 if (pb->eof_reached)
2535 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2538 MOVStreamContext *sc;
2539 unsigned int i, entries, sample_size, field_size, num_bytes;
2544 if (c->fc->nb_streams < 1)
2546 st = c->fc->streams[c->fc->nb_streams-1];
2549 avio_r8(pb); /* version */
2550 avio_rb24(pb); /* flags */
2552 if (atom.type == MKTAG('s','t','s','z')) {
2553 sample_size = avio_rb32(pb);
2554 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2555 sc->sample_size = sample_size;
2556 sc->stsz_sample_size = sample_size;
2560 avio_rb24(pb); /* reserved */
2561 field_size = avio_r8(pb);
2563 entries = avio_rb32(pb);
2565 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2567 sc->sample_count = entries;
2571 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2572 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2573 return AVERROR_INVALIDDATA;
2578 if (entries >= (UINT_MAX - 4) / field_size)
2579 return AVERROR_INVALIDDATA;
2580 if (sc->sample_sizes)
2581 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2582 av_free(sc->sample_sizes);
2583 sc->sample_count = 0;
2584 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2585 if (!sc->sample_sizes)
2586 return AVERROR(ENOMEM);
2588 num_bytes = (entries*field_size+4)>>3;
2590 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2592 av_freep(&sc->sample_sizes);
2593 return AVERROR(ENOMEM);
2596 ret = ffio_read_size(pb, buf, num_bytes);
2598 av_freep(&sc->sample_sizes);
2603 init_get_bits(&gb, buf, 8*num_bytes);
2605 for (i = 0; i < entries && !pb->eof_reached; i++) {
2606 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2607 sc->data_size += sc->sample_sizes[i];
2610 sc->sample_count = i;
2614 if (pb->eof_reached)
2620 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2623 MOVStreamContext *sc;
2624 unsigned int i, entries;
2626 int64_t total_sample_count=0;
2628 if (c->fc->nb_streams < 1)
2630 st = c->fc->streams[c->fc->nb_streams-1];
2633 avio_r8(pb); /* version */
2634 avio_rb24(pb); /* flags */
2635 entries = avio_rb32(pb);
2637 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2638 c->fc->nb_streams-1, entries);
2641 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2642 av_free(sc->stts_data);
2644 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2646 return AVERROR(ENOMEM);
2648 for (i = 0; i < entries && !pb->eof_reached; i++) {
2649 int sample_duration;
2652 sample_count=avio_rb32(pb);
2653 sample_duration = avio_rb32(pb);
2655 if (sample_count < 0) {
2656 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2657 return AVERROR_INVALIDDATA;
2659 sc->stts_data[i].count= sample_count;
2660 sc->stts_data[i].duration= sample_duration;
2662 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2663 sample_count, sample_duration);
2667 && sample_count == 1
2668 && total_sample_count > 100
2669 && sample_duration/10 > duration / total_sample_count)
2670 sample_duration = duration / total_sample_count;
2671 duration+=(int64_t)sample_duration*sample_count;
2672 total_sample_count+=sample_count;
2677 sc->duration_for_fps += duration;
2678 sc->nb_frames_for_fps += total_sample_count;
2680 if (pb->eof_reached)
2683 st->nb_frames= total_sample_count;
2685 st->duration= duration;
2686 sc->track_end = duration;
2690 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2693 if (duration == INT_MIN) {
2694 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2697 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2701 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2704 MOVStreamContext *sc;
2705 unsigned int i, entries, ctts_count = 0;
2707 if (c->fc->nb_streams < 1)
2709 st = c->fc->streams[c->fc->nb_streams-1];
2712 avio_r8(pb); /* version */
2713 avio_rb24(pb); /* flags */
2714 entries = avio_rb32(pb);
2716 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2720 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2721 return AVERROR_INVALIDDATA;
2722 av_freep(&sc->ctts_data);
2723 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2725 return AVERROR(ENOMEM);
2727 for (i = 0; i < entries && !pb->eof_reached; i++) {
2728 int count =avio_rb32(pb);
2729 int duration =avio_rb32(pb);
2732 av_log(c->fc, AV_LOG_TRACE,
2733 "ignoring CTTS entry with count=%d duration=%d\n",
2738 sc->ctts_data[ctts_count].count = count;
2739 sc->ctts_data[ctts_count].duration = duration;
2742 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2745 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2746 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2747 av_freep(&sc->ctts_data);
2753 mov_update_dts_shift(sc, duration);
2756 sc->ctts_count = ctts_count;
2758 if (pb->eof_reached)
2761 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2766 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2769 MOVStreamContext *sc;
2770 unsigned int i, entries;
2772 uint32_t grouping_type;
2774 if (c->fc->nb_streams < 1)
2776 st = c->fc->streams[c->fc->nb_streams-1];
2779 version = avio_r8(pb); /* version */
2780 avio_rb24(pb); /* flags */
2781 grouping_type = avio_rl32(pb);
2782 if (grouping_type != MKTAG( 'r','a','p',' '))
2783 return 0; /* only support 'rap ' grouping */
2785 avio_rb32(pb); /* grouping_type_parameter */
2787 entries = avio_rb32(pb);
2791 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2792 av_free(sc->rap_group);
2793 sc->rap_group_count = 0;
2794 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2796 return AVERROR(ENOMEM);
2798 for (i = 0; i < entries && !pb->eof_reached; i++) {
2799 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2800 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2803 sc->rap_group_count = i;
2805 return pb->eof_reached ? AVERROR_EOF : 0;
2809 * Get ith edit list entry (media time, duration).
2811 static int get_edit_list_entry(MOVContext *mov,
2812 const MOVStreamContext *msc,
2813 unsigned int edit_list_index,
2814 int64_t *edit_list_media_time,
2815 int64_t *edit_list_duration,
2816 int64_t global_timescale)
2818 if (edit_list_index == msc->elst_count) {
2821 *edit_list_media_time = msc->elst_data[edit_list_index].time;
2822 *edit_list_duration = msc->elst_data[edit_list_index].duration;
2824 /* duration is in global timescale units;convert to msc timescale */
2825 if (global_timescale == 0) {
2826 avpriv_request_sample(mov->fc, "Support for mvhd.timescale = 0 with editlists");
2829 *edit_list_duration = av_rescale(*edit_list_duration, msc->time_scale,
2835 * Find the closest previous frame to the timestamp, in e_old index
2836 * entries. Searching for just any frame / just key frames can be controlled by
2837 * last argument 'flag'.
2838 * Returns the index of the entry in st->index_entries if successful,
2841 static int64_t find_prev_closest_index(AVStream *st,
2842 AVIndexEntry *e_old,
2847 AVIndexEntry *e_keep = st->index_entries;
2848 int nb_keep = st->nb_index_entries;
2852 st->index_entries = e_old;
2853 st->nb_index_entries = nb_old;
2854 found = av_index_search_timestamp(st, timestamp, flag | AVSEEK_FLAG_BACKWARD);
2856 // Keep going backwards in the index entries until the timestamp is the same.
2858 for (i = found; i > 0 && e_old[i].timestamp == e_old[i - 1].timestamp;
2860 if ((flag & AVSEEK_FLAG_ANY) ||
2861 (e_old[i - 1].flags & AVINDEX_KEYFRAME)) {
2867 /* restore AVStream state*/
2868 st->index_entries = e_keep;
2869 st->nb_index_entries = nb_keep;
2874 * Add index entry with the given values, to the end of st->index_entries.
2875 * Returns the new size st->index_entries if successful, else returns -1.
2877 * This function is similar to ff_add_index_entry in libavformat/utils.c
2878 * except that here we are always unconditionally adding an index entry to
2879 * the end, instead of searching the entries list and skipping the add if
2880 * there is an existing entry with the same timestamp.
2881 * This is needed because the mov_fix_index calls this func with the same
2882 * unincremented timestamp for successive discarded frames.
2884 static int64_t add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
2885 int size, int distance, int flags)
2887 AVIndexEntry *entries, *ie;
2889 const size_t min_size_needed = (st->nb_index_entries + 1) * sizeof(AVIndexEntry);
2891 // Double the allocation each time, to lower memory fragmentation.
2892 // Another difference from ff_add_index_entry function.
2893 const size_t requested_size =
2894 min_size_needed > st->index_entries_allocated_size ?
2895 FFMAX(min_size_needed, 2 * st->index_entries_allocated_size) :
2898 if((unsigned)st->nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
2901 entries = av_fast_realloc(st->index_entries,
2902 &st->index_entries_allocated_size,
2907 st->index_entries= entries;
2909 index= st->nb_index_entries++;
2910 ie= &entries[index];
2913 ie->timestamp = timestamp;
2914 ie->min_distance= distance;
2921 * Rewrite timestamps of index entries in the range [end_index - frame_duration_buffer_size, end_index)
2922 * by subtracting end_ts successively by the amounts given in frame_duration_buffer.
2924 static void fix_index_entry_timestamps(AVStream* st, int end_index, int64_t end_ts,
2925 int64_t* frame_duration_buffer,
2926 int frame_duration_buffer_size) {
2928 av_assert0(end_index >= 0 && end_index <= st->nb_index_entries);
2929 for (i = 0; i < frame_duration_buffer_size; i++) {
2930 end_ts -= frame_duration_buffer[frame_duration_buffer_size - 1 - i];
2931 st->index_entries[end_index - 1 - i].timestamp = end_ts;
2936 * Append a new ctts entry to ctts_data.
2937 * Returns the new ctts_count if successful, else returns -1.
2939 static int64_t add_ctts_entry(MOVStts** ctts_data, unsigned int* ctts_count, unsigned int* allocated_size,
2940 int count, int duration)
2942 MOVStts *ctts_buf_new;
2943 const size_t min_size_needed = (*ctts_count + 1) * sizeof(MOVStts);
2944 const size_t requested_size =
2945 min_size_needed > *allocated_size ?
2946 FFMAX(min_size_needed, 2 * (*allocated_size)) :
2949 if((unsigned)(*ctts_count) + 1 >= UINT_MAX / sizeof(MOVStts))
2952 ctts_buf_new = av_fast_realloc(*ctts_data, allocated_size, requested_size);
2957 *ctts_data = ctts_buf_new;
2959 ctts_buf_new[*ctts_count].count = count;
2960 ctts_buf_new[*ctts_count].duration = duration;
2962 *ctts_count = (*ctts_count) + 1;
2966 static void mov_current_sample_inc(MOVStreamContext *sc)
2968 sc->current_sample++;
2969 sc->current_index++;
2970 if (sc->index_ranges &&
2971 sc->current_index >= sc->current_index_range->end &&
2972 sc->current_index_range->end) {
2973 sc->current_index_range++;
2974 sc->current_index = sc->current_index_range->start;
2978 static void mov_current_sample_dec(MOVStreamContext *sc)
2980 sc->current_sample--;
2981 sc->current_index--;
2982 if (sc->index_ranges &&
2983 sc->current_index < sc->current_index_range->start &&
2984 sc->current_index_range > sc->index_ranges) {
2985 sc->current_index_range--;
2986 sc->current_index = sc->current_index_range->end - 1;
2990 static void mov_current_sample_set(MOVStreamContext *sc, int current_sample)
2994 sc->current_sample = current_sample;
2995 sc->current_index = current_sample;
2996 if (!sc->index_ranges) {
3000 for (sc->current_index_range = sc->index_ranges;
3001 sc->current_index_range->end;
3002 sc->current_index_range++) {
3003 range_size = sc->current_index_range->end - sc->current_index_range->start;
3004 if (range_size > current_sample) {
3005 sc->current_index = sc->current_index_range->start + current_sample;
3008 current_sample -= range_size;
3013 * Fix st->index_entries, so that it contains only the entries (and the entries
3014 * which are needed to decode them) that fall in the edit list time ranges.
3015 * Also fixes the timestamps of the index entries to match the timeline
3016 * specified the edit lists.
3018 static void mov_fix_index(MOVContext *mov, AVStream *st)
3020 MOVStreamContext *msc = st->priv_data;
3021 AVIndexEntry *e_old = st->index_entries;
3022 int nb_old = st->nb_index_entries;
3023 const AVIndexEntry *e_old_end = e_old + nb_old;
3024 const AVIndexEntry *current = NULL;
3025 MOVStts *ctts_data_old = msc->ctts_data;
3026 int64_t ctts_index_old = 0;
3027 int64_t ctts_sample_old = 0;
3028 int64_t ctts_count_old = msc->ctts_count;
3029 int64_t edit_list_media_time = 0;
3030 int64_t edit_list_duration = 0;
3031 int64_t frame_duration = 0;
3032 int64_t edit_list_dts_counter = 0;
3033 int64_t edit_list_dts_entry_end = 0;
3034 int64_t edit_list_start_ctts_sample = 0;
3036 int64_t edit_list_index = 0;
3038 int64_t index_ctts_count;
3040 unsigned int ctts_allocated_size = 0;
3041 int64_t start_dts = 0;
3042 int64_t edit_list_media_time_dts = 0;
3043 int64_t edit_list_start_encountered = 0;
3044 int64_t search_timestamp = 0;
3045 int64_t* frame_duration_buffer = NULL;
3046 int num_discarded_begin = 0;
3047 int first_non_zero_audio_edit = -1;
3048 int packet_skip_samples = 0;
3049 MOVIndexRange *current_index_range;
3051 if (!msc->elst_data || msc->elst_count <= 0 || nb_old <= 0) {
3055 // allocate the index ranges array
3056 msc->index_ranges = av_malloc((msc->elst_count + 1) * sizeof(msc->index_ranges[0]));
3057 if (!msc->index_ranges) {
3058 av_log(mov->fc, AV_LOG_ERROR, "Cannot allocate index ranges buffer\n");
3061 msc->current_index_range = msc->index_ranges;
3062 current_index_range = msc->index_ranges - 1;
3064 // Clean AVStream from traces of old index
3065 st->index_entries = NULL;
3066 st->index_entries_allocated_size = 0;
3067 st->nb_index_entries = 0;
3069 // Clean ctts fields of MOVStreamContext
3070 msc->ctts_data = NULL;
3071 msc->ctts_count = 0;
3072 msc->ctts_index = 0;
3073 msc->ctts_sample = 0;
3075 // If the dts_shift is positive (in case of negative ctts values in mov),
3076 // then negate the DTS by dts_shift
3077 if (msc->dts_shift > 0)
3078 edit_list_dts_entry_end -= msc->dts_shift;
3080 // Offset the DTS by ctts[0] to make the PTS of the first frame 0
3081 if (ctts_data_old && ctts_count_old > 0) {
3082 edit_list_dts_entry_end -= ctts_data_old[0].duration;
3083 av_log(mov->fc, AV_LOG_DEBUG, "Offset DTS by ctts[%d].duration: %d\n", 0, ctts_data_old[0].duration);
3086 start_dts = edit_list_dts_entry_end;
3088 while (get_edit_list_entry(mov, msc, edit_list_index, &edit_list_media_time,
3089 &edit_list_duration, mov->time_scale)) {
3090 av_log(mov->fc, AV_LOG_DEBUG, "Processing st: %d, edit list %"PRId64" - media time: %"PRId64", duration: %"PRId64"\n",
3091 st->index, edit_list_index, edit_list_media_time, edit_list_duration);
3093 edit_list_dts_counter = edit_list_dts_entry_end;
3094 edit_list_dts_entry_end += edit_list_duration;
3095 num_discarded_begin = 0;
3096 if (edit_list_media_time == -1) {
3100 // If we encounter a non-negative edit list reset the skip_samples/start_pad fields and set them
3101 // according to the edit list below.
3102 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3103 if (first_non_zero_audio_edit < 0) {
3104 first_non_zero_audio_edit = 1;
3106 first_non_zero_audio_edit = 0;
3109 if (first_non_zero_audio_edit > 0)
3110 st->skip_samples = msc->start_pad = 0;
3113 //find closest previous key frame
3114 edit_list_media_time_dts = edit_list_media_time;
3115 if (msc->dts_shift > 0) {
3116 edit_list_media_time_dts -= msc->dts_shift;
3119 // While reordering frame index according to edit list we must handle properly
3120 // the scenario when edit list entry starts from none key frame.
3121 // We find closest previous key frame and preserve it and consequent frames in index.
3122 // All frames which are outside edit list entry time boundaries will be dropped after decoding.
3123 search_timestamp = edit_list_media_time_dts;
3124 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3125 // Audio decoders like AAC need need a decoder delay samples previous to the current sample,
3126 // to correctly decode this frame. Hence for audio we seek to a frame 1 sec. before the
3127 // edit_list_media_time to cover the decoder delay.
3128 search_timestamp = FFMAX(search_timestamp - msc->time_scale, e_old[0].timestamp);
3131 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, 0);
3133 av_log(mov->fc, AV_LOG_WARNING,
3134 "st: %d edit list: %"PRId64" Missing key frame while searching for timestamp: %"PRId64"\n",
3135 st->index, edit_list_index, search_timestamp);
3136 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, AVSEEK_FLAG_ANY);
3139 av_log(mov->fc, AV_LOG_WARNING,
3140 "st: %d edit list %"PRId64" Cannot find an index entry before timestamp: %"PRId64".\n"
3141 "Rounding edit list media time to zero.\n",
3142 st->index, edit_list_index, search_timestamp);
3144 edit_list_media_time = 0;
3147 current = e_old + index;
3150 ctts_sample_old = 0;
3152 // set ctts_index properly for the found key frame
3153 for (index_ctts_count = 0; index_ctts_count < index; index_ctts_count++) {
3154 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3156 if (ctts_data_old[ctts_index_old].count == ctts_sample_old) {
3158 ctts_sample_old = 0;
3163 edit_list_start_ctts_sample = ctts_sample_old;
3165 // Iterate over index and arrange it according to edit list
3166 edit_list_start_encountered = 0;
3167 for (; current < e_old_end; current++, index++) {
3168 // check if frame outside edit list mark it for discard
3169 frame_duration = (current + 1 < e_old_end) ?
3170 ((current + 1)->timestamp - current->timestamp) : edit_list_duration;
3172 flags = current->flags;
3174 // frames (pts) before or after edit list
3175 curr_cts = current->timestamp + msc->dts_shift;
3177 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3178 av_log(mov->fc, AV_LOG_DEBUG, "shifted frame pts, curr_cts: %"PRId64" @ %"PRId64", ctts: %d, ctts_count: %"PRId64"\n",
3179 curr_cts, ctts_index_old, ctts_data_old[ctts_index_old].duration, ctts_count_old);
3180 curr_cts += ctts_data_old[ctts_index_old].duration;
3182 if (ctts_sample_old == ctts_data_old[ctts_index_old].count) {
3183 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3184 &ctts_allocated_size,
3185 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3186 ctts_data_old[ctts_index_old].duration) == -1) {
3187 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3189 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3190 ctts_data_old[ctts_index_old].duration);
3194 ctts_sample_old = 0;
3195 edit_list_start_ctts_sample = 0;
3199 if (curr_cts < edit_list_media_time || curr_cts >= (edit_list_duration + edit_list_media_time)) {
3200 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id != AV_CODEC_ID_VORBIS &&
3201 curr_cts < edit_list_media_time && curr_cts + frame_duration > edit_list_media_time &&
3202 first_non_zero_audio_edit > 0) {
3203 packet_skip_samples = edit_list_media_time - curr_cts;
3204 st->skip_samples += packet_skip_samples;
3206 // Shift the index entry timestamp by packet_skip_samples to be correct.
3207 edit_list_dts_counter -= packet_skip_samples;
3208 if (edit_list_start_encountered == 0) {
3209 edit_list_start_encountered = 1;
3210 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3211 // discarded packets.
3212 if (frame_duration_buffer) {
3213 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3214 frame_duration_buffer, num_discarded_begin);
3215 av_freep(&frame_duration_buffer);
3219 av_log(mov->fc, AV_LOG_DEBUG, "skip %d audio samples from curr_cts: %"PRId64"\n", packet_skip_samples, curr_cts);
3221 flags |= AVINDEX_DISCARD_FRAME;
3222 av_log(mov->fc, AV_LOG_DEBUG, "drop a frame at curr_cts: %"PRId64" @ %"PRId64"\n", curr_cts, index);
3224 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && edit_list_start_encountered == 0) {
3225 num_discarded_begin++;
3226 frame_duration_buffer = av_realloc(frame_duration_buffer,
3227 num_discarded_begin * sizeof(int64_t));
3228 if (!frame_duration_buffer) {
3229 av_log(mov->fc, AV_LOG_ERROR, "Cannot reallocate frame duration buffer\n");
3232 frame_duration_buffer[num_discarded_begin - 1] = frame_duration;
3234 // Increment skip_samples for the first non-zero audio edit list
3235 if (first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {
3236 st->skip_samples += frame_duration;
3237 msc->start_pad = st->skip_samples;
3241 } else if (edit_list_start_encountered == 0) {
3242 edit_list_start_encountered = 1;
3243 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3244 // discarded packets.
3245 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && frame_duration_buffer) {
3246 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3247 frame_duration_buffer, num_discarded_begin);
3248 av_freep(&frame_duration_buffer);
3252 if (add_index_entry(st, current->pos, edit_list_dts_counter, current->size,
3253 current->min_distance, flags) == -1) {
3254 av_log(mov->fc, AV_LOG_ERROR, "Cannot add index entry\n");
3258 // Update the index ranges array
3259 if (current_index_range < msc->index_ranges || index != current_index_range->end) {
3260 current_index_range++;
3261 current_index_range->start = index;
3263 current_index_range->end = index + 1;
3265 // Only start incrementing DTS in frame_duration amounts, when we encounter a frame in edit list.
3266 if (edit_list_start_encountered > 0) {
3267 edit_list_dts_counter = edit_list_dts_counter + frame_duration;
3270 // Break when found first key frame after edit entry completion
3271 if (((curr_cts + frame_duration) >= (edit_list_duration + edit_list_media_time)) &&
3272 ((flags & AVINDEX_KEYFRAME) || ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)))) {
3274 if (ctts_data_old && ctts_sample_old != 0) {
3275 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3276 &ctts_allocated_size,
3277 ctts_sample_old - edit_list_start_ctts_sample,
3278 ctts_data_old[ctts_index_old].duration) == -1) {
3279 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3280 ctts_index_old, ctts_sample_old - edit_list_start_ctts_sample,
3281 ctts_data_old[ctts_index_old].duration);
3289 // Update av stream length
3290 st->duration = edit_list_dts_entry_end - start_dts;
3292 // Free the old index and the old CTTS structures
3294 av_free(ctts_data_old);
3296 // Null terminate the index ranges array
3297 current_index_range++;
3298 current_index_range->start = 0;
3299 current_index_range->end = 0;
3300 msc->current_index = msc->index_ranges[0].start;
3303 static void mov_build_index(MOVContext *mov, AVStream *st)
3305 MOVStreamContext *sc = st->priv_data;
3306 int64_t current_offset;
3307 int64_t current_dts = 0;
3308 unsigned int stts_index = 0;
3309 unsigned int stsc_index = 0;
3310 unsigned int stss_index = 0;
3311 unsigned int stps_index = 0;
3313 uint64_t stream_size = 0;
3315 if (sc->elst_count) {
3316 int i, edit_start_index = 0;
3317 int64_t empty_duration = 0; // empty duration of the first edit list entry
3318 int64_t start_time = 0; // start time of the media
3320 for (i = 0; i < sc->elst_count; i++) {
3321 const MOVElst *e = &sc->elst_data[i];
3322 if (i == 0 && e->time == -1) {
3323 /* if empty, the first entry is the start time of the stream
3324 * relative to the presentation itself */
3325 empty_duration = e->duration;
3326 edit_start_index = 1;
3327 } else if (i == edit_start_index && e->time >= 0) {
3328 start_time = e->time;
3332 /* adjust first dts according to edit list */
3333 if ((empty_duration || start_time) && mov->time_scale > 0) {
3335 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
3336 sc->time_offset = start_time - empty_duration;
3340 /* only use old uncompressed audio chunk demuxing when stts specifies it */
3341 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
3342 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
3343 unsigned int current_sample = 0;
3344 unsigned int stts_sample = 0;
3345 unsigned int sample_size;
3346 unsigned int distance = 0;
3347 unsigned int rap_group_index = 0;
3348 unsigned int rap_group_sample = 0;
3349 int64_t last_dts = 0;
3350 int64_t dts_correction = 0;
3351 int rap_group_present = sc->rap_group_count && sc->rap_group;
3352 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
3354 current_dts -= sc->dts_shift;
3355 last_dts = current_dts;
3357 if (!sc->sample_count || st->nb_index_entries)
3359 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3361 if (av_reallocp_array(&st->index_entries,
3362 st->nb_index_entries + sc->sample_count,
3363 sizeof(*st->index_entries)) < 0) {
3364 st->nb_index_entries = 0;
3367 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
3369 for (i = 0; i < sc->chunk_count; i++) {
3370 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
3371 current_offset = sc->chunk_offsets[i];
3372 while (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3373 i + 1 == sc->stsc_data[stsc_index + 1].first)
3376 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
3377 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
3378 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
3379 sc->stsz_sample_size = sc->sample_size;
3381 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
3382 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
3383 sc->stsz_sample_size = sc->sample_size;
3386 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
3388 if (current_sample >= sc->sample_count) {
3389 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
3393 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
3395 if (stss_index + 1 < sc->keyframe_count)
3397 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
3399 if (stps_index + 1 < sc->stps_count)
3402 if (rap_group_present && rap_group_index < sc->rap_group_count) {
3403 if (sc->rap_group[rap_group_index].index > 0)
3405 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
3406 rap_group_sample = 0;
3410 if (sc->keyframe_absent
3412 && !rap_group_present
3413 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
3417 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
3418 if (sc->pseudo_stream_id == -1 ||
3419 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
3421 if (sample_size > 0x3FFFFFFF) {
3422 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", sample_size);
3425 e = &st->index_entries[st->nb_index_entries++];
3426 e->pos = current_offset;
3427 e->timestamp = current_dts;
3428 e->size = sample_size;
3429 e->min_distance = distance;
3430 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
3431 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3432 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
3433 current_offset, current_dts, sample_size, distance, keyframe);
3434 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
3435 ff_rfps_add_frame(mov->fc, st, current_dts);
3438 current_offset += sample_size;
3439 stream_size += sample_size;
3441 /* A negative sample duration is invalid based on the spec,
3442 * but some samples need it to correct the DTS. */
3443 if (sc->stts_data[stts_index].duration < 0) {
3444 av_log(mov->fc, AV_LOG_WARNING,
3445 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
3446 sc->stts_data[stts_index].duration, stts_index,
3448 dts_correction += sc->stts_data[stts_index].duration - 1;
3449 sc->stts_data[stts_index].duration = 1;
3451 current_dts += sc->stts_data[stts_index].duration;
3452 if (!dts_correction || current_dts + dts_correction > last_dts) {
3453 current_dts += dts_correction;
3456 /* Avoid creating non-monotonous DTS */
3457 dts_correction += current_dts - last_dts - 1;
3458 current_dts = last_dts + 1;
3460 last_dts = current_dts;
3464 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
3470 if (st->duration > 0)
3471 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
3473 unsigned chunk_samples, total = 0;
3475 // compute total chunk count
3476 for (i = 0; i < sc->stsc_count; i++) {
3477 unsigned count, chunk_count;
3479 chunk_samples = sc->stsc_data[i].count;
3480 if (i != sc->stsc_count - 1 &&
3481 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
3482 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
3486 if (sc->samples_per_frame >= 160) { // gsm
3487 count = chunk_samples / sc->samples_per_frame;
3488 } else if (sc->samples_per_frame > 1) {
3489 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
3490 count = (chunk_samples+samples-1) / samples;
3492 count = (chunk_samples+1023) / 1024;
3495 if (mov_stsc_index_valid(i, sc->stsc_count))
3496 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
3498 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
3499 total += chunk_count * count;
3502 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
3503 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3505 if (av_reallocp_array(&st->index_entries,
3506 st->nb_index_entries + total,
3507 sizeof(*st->index_entries)) < 0) {
3508 st->nb_index_entries = 0;
3511 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
3514 for (i = 0; i < sc->chunk_count; i++) {
3515 current_offset = sc->chunk_offsets[i];
3516 if (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3517 i + 1 == sc->stsc_data[stsc_index + 1].first)
3519 chunk_samples = sc->stsc_data[stsc_index].count;
3521 while (chunk_samples > 0) {
3523 unsigned size, samples;
3525 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
3526 avpriv_request_sample(mov->fc,
3527 "Zero bytes per frame, but %d samples per frame",
3528 sc->samples_per_frame);
3532 if (sc->samples_per_frame >= 160) { // gsm
3533 samples = sc->samples_per_frame;
3534 size = sc->bytes_per_frame;
3536 if (sc->samples_per_frame > 1) {
3537 samples = FFMIN((1024 / sc->samples_per_frame)*
3538 sc->samples_per_frame, chunk_samples);
3539 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
3541 samples = FFMIN(1024, chunk_samples);
3542 size = samples * sc->sample_size;
3546 if (st->nb_index_entries >= total) {
3547 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
3550 if (size > 0x3FFFFFFF) {
3551 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", size);
3554 e = &st->index_entries[st->nb_index_entries++];
3555 e->pos = current_offset;
3556 e->timestamp = current_dts;
3558 e->min_distance = 0;
3559 e->flags = AVINDEX_KEYFRAME;
3560 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
3561 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
3564 current_offset += size;
3565 current_dts += samples;
3566 chunk_samples -= samples;
3571 // Fix index according to edit lists.
3572 mov_fix_index(mov, st);
3575 static int test_same_origin(const char *src, const char *ref) {
3585 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
3586 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
3588 if (strlen(src) == 0) {
3590 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
3591 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
3592 strlen(src_host) + 1 >= sizeof(src_host) ||
3593 strlen(ref_host) + 1 >= sizeof(ref_host)) {
3595 } else if (strcmp(src_proto, ref_proto) ||
3596 strcmp(src_auth, ref_auth) ||
3597 strcmp(src_host, ref_host) ||
3598 src_port != ref_port) {
3604 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref)
3606 /* try relative path, we do not try the absolute because it can leak information about our
3607 system to an attacker */
3608 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
3609 char filename[1025];
3610 const char *src_path;
3613 /* find a source dir */
3614 src_path = strrchr(src, '/');
3620 /* find a next level down to target */
3621 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
3622 if (ref->path[l] == '/') {
3623 if (i == ref->nlvl_to - 1)
3629 /* compose filename if next level down to target was found */
3630 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
3631 memcpy(filename, src, src_path - src);
3632 filename[src_path - src] = 0;
3634 for (i = 1; i < ref->nlvl_from; i++)
3635 av_strlcat(filename, "../", sizeof(filename));
3637 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
3638 if (!c->use_absolute_path) {
3639 int same_origin = test_same_origin(src, filename);
3642 av_log(c->fc, AV_LOG_ERROR,
3643 "Reference with mismatching origin, %s not tried for security reasons, "
3644 "set demuxer option use_absolute_path to allow it anyway\n",
3646 return AVERROR(ENOENT);
3649 if(strstr(ref->path + l + 1, "..") ||
3650 strstr(ref->path + l + 1, ":") ||
3651 (ref->nlvl_from > 1 && same_origin < 0) ||
3652 (filename[0] == '/' && src_path == src))
3653 return AVERROR(ENOENT);
3656 if (strlen(filename) + 1 == sizeof(filename))
3657 return AVERROR(ENOENT);
3658 if (!c->fc->io_open(c->fc, pb, filename, AVIO_FLAG_READ, NULL))
3661 } else if (c->use_absolute_path) {
3662 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
3663 "this is a possible security issue\n");
3664 if (!c->fc->io_open(c->fc, pb, ref->path, AVIO_FLAG_READ, NULL))
3667 av_log(c->fc, AV_LOG_ERROR,
3668 "Absolute path %s not tried for security reasons, "
3669 "set demuxer option use_absolute_path to allow absolute paths\n",
3673 return AVERROR(ENOENT);
3676 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3678 if (sc->time_scale <= 0) {
3679 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3680 sc->time_scale = c->time_scale;
3681 if (sc->time_scale <= 0)
3686 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3689 MOVStreamContext *sc;
3692 st = avformat_new_stream(c->fc, NULL);
3693 if (!st) return AVERROR(ENOMEM);
3694 st->id = c->fc->nb_streams;
3695 sc = av_mallocz(sizeof(MOVStreamContext));
3696 if (!sc) return AVERROR(ENOMEM);
3699 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
3700 sc->ffindex = st->index;
3701 c->trak_index = st->index;
3703 if ((ret = mov_read_default(c, pb, atom)) < 0)
3709 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3710 (!sc->sample_size && !sc->sample_count))) {
3711 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3716 fix_timescale(c, sc);
3718 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3720 mov_build_index(c, st);
3722 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3723 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3724 if (c->enable_drefs) {
3725 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref) < 0)
3726 av_log(c->fc, AV_LOG_ERROR,
3727 "stream %d, error opening alias: path='%s', dir='%s', "
3728 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3729 st->index, dref->path, dref->dir, dref->filename,
3730 dref->volume, dref->nlvl_from, dref->nlvl_to);
3732 av_log(c->fc, AV_LOG_WARNING,
3733 "Skipped opening external track: "
3734 "stream %d, alias: path='%s', dir='%s', "
3735 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3736 "Set enable_drefs to allow this.\n",
3737 st->index, dref->path, dref->dir, dref->filename,
3738 dref->volume, dref->nlvl_from, dref->nlvl_to);
3742 sc->pb_is_copied = 1;
3745 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3746 if (!st->sample_aspect_ratio.num && st->codecpar->width && st->codecpar->height &&
3747 sc->height && sc->width &&
3748 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
3749 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
3750 ((double)st->codecpar->width * sc->height), INT_MAX);
3753 #if FF_API_R_FRAME_RATE
3754 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3755 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3756 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3760 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3761 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
3762 TAG_IS_AVCI(st->codecpar->codec_tag)) {
3763 ret = ff_generate_avci_extradata(st);
3768 switch (st->codecpar->codec_id) {
3769 #if CONFIG_H261_DECODER
3770 case AV_CODEC_ID_H261:
3772 #if CONFIG_H263_DECODER
3773 case AV_CODEC_ID_H263:
3775 #if CONFIG_MPEG4_DECODER
3776 case AV_CODEC_ID_MPEG4:
3778 st->codecpar->width = 0; /* let decoder init width/height */
3779 st->codecpar->height= 0;
3783 // If the duration of the mp3 packets is not constant, then they could need a parser
3784 if (st->codecpar->codec_id == AV_CODEC_ID_MP3
3785 && sc->stts_count > 3
3786 && sc->stts_count*10 > st->nb_frames
3787 && sc->time_scale == st->codecpar->sample_rate) {
3788 st->need_parsing = AVSTREAM_PARSE_FULL;
3790 /* Do not need those anymore. */
3791 av_freep(&sc->chunk_offsets);
3792 av_freep(&sc->sample_sizes);
3793 av_freep(&sc->keyframes);
3794 av_freep(&sc->stts_data);
3795 av_freep(&sc->stps_data);
3796 av_freep(&sc->elst_data);
3797 av_freep(&sc->rap_group);
3802 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3805 c->itunes_metadata = 1;
3806 ret = mov_read_default(c, pb, atom);
3807 c->itunes_metadata = 0;
3811 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3820 count = avio_rb32(pb);
3821 if (count > UINT_MAX / sizeof(*c->meta_keys) - 1) {
3822 av_log(c->fc, AV_LOG_ERROR,
3823 "The 'keys' atom with the invalid key count: %d\n", count);
3824 return AVERROR_INVALIDDATA;
3827 c->meta_keys_count = count + 1;
3828 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3830 return AVERROR(ENOMEM);
3832 for (i = 1; i <= count; ++i) {
3833 uint32_t key_size = avio_rb32(pb);
3834 uint32_t type = avio_rl32(pb);
3836 av_log(c->fc, AV_LOG_ERROR,
3837 "The key# %d in meta has invalid size: %d\n", i, key_size);
3838 return AVERROR_INVALIDDATA;
3841 if (type != MKTAG('m','d','t','a')) {
3842 avio_skip(pb, key_size);
3844 c->meta_keys[i] = av_mallocz(key_size + 1);
3845 if (!c->meta_keys[i])
3846 return AVERROR(ENOMEM);
3847 avio_read(pb, c->meta_keys[i], key_size);
3853 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3855 int64_t end = avio_tell(pb) + atom.size;
3856 uint8_t *key = NULL, *val = NULL, *mean = NULL;
3860 MOVStreamContext *sc;
3862 if (c->fc->nb_streams < 1)
3864 st = c->fc->streams[c->fc->nb_streams-1];
3867 for (i = 0; i < 3; i++) {
3871 if (end - avio_tell(pb) <= 12)
3874 len = avio_rb32(pb);
3875 tag = avio_rl32(pb);
3876 avio_skip(pb, 4); // flags
3878 if (len < 12 || len - 12 > end - avio_tell(pb))
3882 if (tag == MKTAG('m', 'e', 'a', 'n'))
3884 else if (tag == MKTAG('n', 'a', 'm', 'e'))
3886 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3893 *p = av_malloc(len + 1);
3896 ret = ffio_read_size(pb, *p, len);
3904 if (mean && key && val) {
3905 if (strcmp(key, "iTunSMPB") == 0) {
3906 int priming, remainder, samples;
3907 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3908 if(priming>0 && priming<16384)
3909 sc->start_pad = priming;
3912 if (strcmp(key, "cdec") != 0) {
3913 av_dict_set(&c->fc->metadata, key, val,
3914 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3918 av_log(c->fc, AV_LOG_VERBOSE,
3919 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3922 avio_seek(pb, end, SEEK_SET);
3929 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3931 while (atom.size > 8) {
3932 uint32_t tag = avio_rl32(pb);
3934 if (tag == MKTAG('h','d','l','r')) {
3935 avio_seek(pb, -8, SEEK_CUR);
3937 return mov_read_default(c, pb, atom);
3943 // return 1 when matrix is identity, 0 otherwise
3944 #define IS_MATRIX_IDENT(matrix) \
3945 ( (matrix)[0][0] == (1 << 16) && \
3946 (matrix)[1][1] == (1 << 16) && \
3947 (matrix)[2][2] == (1 << 30) && \
3948 !(matrix)[0][1] && !(matrix)[0][2] && \
3949 !(matrix)[1][0] && !(matrix)[1][2] && \
3950 !(matrix)[2][0] && !(matrix)[2][1])
3952 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3957 int display_matrix[3][3];
3958 int res_display_matrix[3][3] = { { 0 } };
3960 MOVStreamContext *sc;
3964 if (c->fc->nb_streams < 1)
3966 st = c->fc->streams[c->fc->nb_streams-1];
3969 version = avio_r8(pb);
3970 flags = avio_rb24(pb);
3971 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3977 avio_rb32(pb); /* creation time */
3978 avio_rb32(pb); /* modification time */
3980 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3981 avio_rb32(pb); /* reserved */
3983 /* highlevel (considering edits) duration in movie timebase */
3984 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3985 avio_rb32(pb); /* reserved */
3986 avio_rb32(pb); /* reserved */
3988 avio_rb16(pb); /* layer */
3989 avio_rb16(pb); /* alternate group */
3990 avio_rb16(pb); /* volume */
3991 avio_rb16(pb); /* reserved */
3993 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3994 // they're kept in fixed point format through all calculations
3995 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3996 // side data, but the scale factor is not needed to calculate aspect ratio
3997 for (i = 0; i < 3; i++) {
3998 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3999 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
4000 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
4003 width = avio_rb32(pb); // 16.16 fixed point track width
4004 height = avio_rb32(pb); // 16.16 fixed point track height
4005 sc->width = width >> 16;
4006 sc->height = height >> 16;
4008 // apply the moov display matrix (after the tkhd one)
4009 for (i = 0; i < 3; i++) {
4010 const int sh[3] = { 16, 16, 30 };
4011 for (j = 0; j < 3; j++) {
4012 for (e = 0; e < 3; e++) {
4013 res_display_matrix[i][j] +=
4014 ((int64_t) display_matrix[i][e] *
4015 c->movie_display_matrix[e][j]) >> sh[e];
4020 // save the matrix when it is not the default identity
4021 if (!IS_MATRIX_IDENT(res_display_matrix)) {
4024 av_freep(&sc->display_matrix);
4025 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
4026 if (!sc->display_matrix)
4027 return AVERROR(ENOMEM);
4029 for (i = 0; i < 3; i++)
4030 for (j = 0; j < 3; j++)
4031 sc->display_matrix[i * 3 + j] = res_display_matrix[i][j];
4033 rotate = av_display_rotation_get(sc->display_matrix);
4034 if (!isnan(rotate)) {
4035 char rotate_buf[64];
4037 if (rotate < 0) // for backward compatibility
4039 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
4040 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
4044 // transform the display width/height according to the matrix
4045 // to keep the same scale, use [width height 1<<16]
4046 if (width && height && sc->display_matrix) {
4047 double disp_transform[2];
4049 for (i = 0; i < 2; i++)
4050 disp_transform[i] = hypot(sc->display_matrix[0 + i],
4051 sc->display_matrix[3 + i]);
4053 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
4054 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
4055 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
4056 st->sample_aspect_ratio = av_d2q(
4057 disp_transform[0] / disp_transform[1],
4063 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4065 MOVFragment *frag = &c->fragment;
4066 MOVTrackExt *trex = NULL;
4067 MOVFragmentIndex* index = NULL;
4068 int flags, track_id, i, found = 0;
4070 avio_r8(pb); /* version */
4071 flags = avio_rb24(pb);
4073 track_id = avio_rb32(pb);
4075 return AVERROR_INVALIDDATA;
4076 frag->track_id = track_id;
4077 for (i = 0; i < c->trex_count; i++)
4078 if (c->trex_data[i].track_id == frag->track_id) {
4079 trex = &c->trex_data[i];
4083 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
4084 return AVERROR_INVALIDDATA;
4087 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
4088 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
4089 frag->moof_offset : frag->implicit_offset;
4090 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
4092 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
4093 avio_rb32(pb) : trex->duration;
4094 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
4095 avio_rb32(pb) : trex->size;
4096 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
4097 avio_rb32(pb) : trex->flags;
4098 frag->time = AV_NOPTS_VALUE;
4099 for (i = 0; i < c->fragment_index_count; i++) {
4101 MOVFragmentIndex* candidate = c->fragment_index_data[i];
4102 if (candidate->track_id == frag->track_id) {
4103 av_log(c->fc, AV_LOG_DEBUG,
4104 "found fragment index for track %u\n", frag->track_id);
4106 for (j = index->current_item; j < index->item_count; j++) {
4107 if (frag->implicit_offset == index->items[j].moof_offset) {
4108 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
4109 "for track %u and moof_offset %"PRId64"\n",
4110 frag->track_id, index->items[j].moof_offset);
4111 frag->time = index->items[j].time;
4112 index->current_item = j + 1;
4121 if (index && !found) {
4122 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
4123 "it doesn't have an (in-order) entry for moof_offset "
4124 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
4126 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
4130 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4135 num = atom.size / 4;
4136 if (!(new_tracks = av_malloc_array(num, sizeof(int))))
4137 return AVERROR(ENOMEM);
4139 av_free(c->chapter_tracks);
4140 c->chapter_tracks = new_tracks;
4141 c->nb_chapter_tracks = num;
4143 for (i = 0; i < num && !pb->eof_reached; i++)
4144 c->chapter_tracks[i] = avio_rb32(pb);
4149 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4154 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
4155 return AVERROR_INVALIDDATA;
4156 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
4157 sizeof(*c->trex_data))) < 0) {
4162 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
4164 trex = &c->trex_data[c->trex_count++];
4165 avio_r8(pb); /* version */
4166 avio_rb24(pb); /* flags */
4167 trex->track_id = avio_rb32(pb);
4168 trex->stsd_id = avio_rb32(pb);
4169 trex->duration = avio_rb32(pb);
4170 trex->size = avio_rb32(pb);
4171 trex->flags = avio_rb32(pb);
4175 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4177 MOVFragment *frag = &c->fragment;
4178 AVStream *st = NULL;
4179 MOVStreamContext *sc;
4182 for (i = 0; i < c->fc->nb_streams; i++) {
4183 if (c->fc->streams[i]->id == frag->track_id) {
4184 st = c->fc->streams[i];
4189 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
4190 return AVERROR_INVALIDDATA;
4193 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
4195 version = avio_r8(pb);
4196 avio_rb24(pb); /* flags */
4198 sc->track_end = avio_rb64(pb);
4200 sc->track_end = avio_rb32(pb);
4205 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4207 MOVFragment *frag = &c->fragment;
4208 AVStream *st = NULL;
4209 MOVStreamContext *sc;
4213 int data_offset = 0;
4214 unsigned entries, first_sample_flags = frag->flags;
4215 int flags, distance, i, err;
4217 for (i = 0; i < c->fc->nb_streams; i++) {
4218 if (c->fc->streams[i]->id == frag->track_id) {
4219 st = c->fc->streams[i];
4224 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
4225 return AVERROR_INVALIDDATA;
4228 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
4230 avio_r8(pb); /* version */
4231 flags = avio_rb24(pb);
4232 entries = avio_rb32(pb);
4233 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
4235 /* Always assume the presence of composition time offsets.
4236 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
4237 * 1) in the initial movie, there are no samples.
4238 * 2) in the first movie fragment, there is only one sample without composition time offset.
4239 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
4240 if (!sc->ctts_count && sc->sample_count)
4242 /* Complement ctts table if moov atom doesn't have ctts atom. */
4243 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
4245 return AVERROR(ENOMEM);
4246 sc->ctts_data = ctts_data;
4247 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
4248 sc->ctts_data[sc->ctts_count].duration = 0;
4251 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
4252 return AVERROR_INVALIDDATA;
4253 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
4254 sizeof(*sc->ctts_data))) < 0) {
4258 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
4259 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
4260 dts = sc->track_end - sc->time_offset;
4261 offset = frag->base_data_offset + data_offset;
4263 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
4264 for (i = 0; i < entries && !pb->eof_reached; i++) {
4265 unsigned sample_size = frag->size;
4266 int sample_flags = i ? frag->flags : first_sample_flags;
4267 unsigned sample_duration = frag->duration;
4270 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
4271 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
4272 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
4273 sc->ctts_data[sc->ctts_count].count = 1;
4274 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
4276 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
4277 if (frag->time != AV_NOPTS_VALUE) {
4278 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
4279 int64_t pts = frag->time;
4280 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
4281 " sc->dts_shift %d ctts.duration %d"
4282 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
4283 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
4284 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
4285 dts = pts - sc->dts_shift;
4286 if (flags & MOV_TRUN_SAMPLE_CTS) {
4287 dts -= sc->ctts_data[sc->ctts_count].duration;
4289 dts -= sc->time_offset;
4291 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
4293 dts = frag->time - sc->time_offset;
4294 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
4295 ", using it for dts\n", dts);
4297 frag->time = AV_NOPTS_VALUE;
4300 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
4304 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
4305 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
4308 err = av_add_index_entry(st, offset, dts, sample_size, distance,
4309 keyframe ? AVINDEX_KEYFRAME : 0);
4311 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
4313 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
4314 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
4315 offset, dts, sample_size, distance, keyframe);
4317 dts += sample_duration;
4318 offset += sample_size;
4319 sc->data_size += sample_size;
4320 sc->duration_for_fps += sample_duration;
4321 sc->nb_frames_for_fps ++;
4324 if (pb->eof_reached)
4327 frag->implicit_offset = offset;
4329 sc->track_end = dts + sc->time_offset;
4330 if (st->duration < sc->track_end)
4331 st->duration = sc->track_end;
4336 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4338 int64_t offset = avio_tell(pb) + atom.size, pts;
4340 unsigned i, track_id;
4341 AVStream *st = NULL;
4343 MOVStreamContext *sc, *ref_sc;
4344 MOVFragmentIndex *index = NULL;
4345 MOVFragmentIndex **tmp;
4346 AVRational timescale;
4348 version = avio_r8(pb);
4350 avpriv_request_sample(c->fc, "sidx version %u", version);
4354 avio_rb24(pb); // flags
4356 track_id = avio_rb32(pb); // Reference ID
4357 for (i = 0; i < c->fc->nb_streams; i++) {
4358 if (c->fc->streams[i]->id == track_id) {
4359 st = c->fc->streams[i];
4364 av_log(c->fc, AV_LOG_WARNING, "could not find corresponding track id %d\n", track_id);
4370 timescale = av_make_q(1, avio_rb32(pb));
4372 if (timescale.den <= 0) {
4373 av_log(c->fc, AV_LOG_ERROR, "Invalid sidx timescale 1/%d\n", timescale.den);
4374 return AVERROR_INVALIDDATA;
4378 pts = avio_rb32(pb);
4379 offset += avio_rb32(pb);
4381 pts = avio_rb64(pb);
4382 offset += avio_rb64(pb);
4385 avio_rb16(pb); // reserved
4387 index = av_mallocz(sizeof(MOVFragmentIndex));
4389 return AVERROR(ENOMEM);
4391 index->track_id = track_id;
4393 index->item_count = avio_rb16(pb);
4394 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
4396 if (!index->items) {
4398 return AVERROR(ENOMEM);
4401 for (i = 0; i < index->item_count; i++) {
4402 uint32_t size = avio_rb32(pb);
4403 uint32_t duration = avio_rb32(pb);
4404 if (size & 0x80000000) {
4405 avpriv_request_sample(c->fc, "sidx reference_type 1");
4406 av_freep(&index->items);
4408 return AVERROR_PATCHWELCOME;
4410 avio_rb32(pb); // sap_flags
4411 index->items[i].moof_offset = offset;
4412 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
4417 st->duration = sc->track_end = pts;
4419 tmp = av_realloc_array(c->fragment_index_data,
4420 c->fragment_index_count + 1,
4421 sizeof(MOVFragmentIndex*));
4423 av_freep(&index->items);
4425 return AVERROR(ENOMEM);
4428 c->fragment_index_data = tmp;
4429 c->fragment_index_data[c->fragment_index_count++] = index;
4432 if (offset == avio_size(pb)) {
4433 for (i = 0; i < c->fc->nb_streams; i++) {
4434 if (c->fc->streams[i]->id == c->fragment_index_data[0]->track_id) {
4435 ref_st = c->fc->streams[i];
4436 ref_sc = ref_st->priv_data;
4440 for (i = 0; i < c->fc->nb_streams; i++) {
4441 st = c->fc->streams[i];
4443 if (!sc->has_sidx) {
4444 st->duration = sc->track_end = av_rescale(ref_st->duration, sc->time_scale, ref_sc->time_scale);
4448 c->fragment_index_complete = 1;
4454 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
4455 /* like the files created with Adobe Premiere 5.0, for samples see */
4456 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
4457 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4462 return 0; /* continue */
4463 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
4464 avio_skip(pb, atom.size - 4);
4467 atom.type = avio_rl32(pb);
4469 if (atom.type != MKTAG('m','d','a','t')) {
4470 avio_skip(pb, atom.size);
4473 err = mov_read_mdat(c, pb, atom);
4477 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4482 uint8_t *moov_data; /* uncompressed data */
4483 long cmov_len, moov_len;
4486 avio_rb32(pb); /* dcom atom */
4487 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
4488 return AVERROR_INVALIDDATA;
4489 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
4490 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
4491 return AVERROR_INVALIDDATA;
4493 avio_rb32(pb); /* cmvd atom */
4494 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
4495 return AVERROR_INVALIDDATA;
4496 moov_len = avio_rb32(pb); /* uncompressed size */
4497 cmov_len = atom.size - 6 * 4;
4499 cmov_data = av_malloc(cmov_len);
4501 return AVERROR(ENOMEM);
4502 moov_data = av_malloc(moov_len);
4505 return AVERROR(ENOMEM);
4507 ret = ffio_read_size(pb, cmov_data, cmov_len);
4509 goto free_and_return;
4511 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
4512 goto free_and_return;
4513 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
4514 goto free_and_return;
4515 ctx.seekable = AVIO_SEEKABLE_NORMAL;
4516 atom.type = MKTAG('m','o','o','v');
4517 atom.size = moov_len;
4518 ret = mov_read_default(c, &ctx, atom);
4524 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
4525 return AVERROR(ENOSYS);
4529 /* edit list atom */
4530 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4532 MOVStreamContext *sc;
4533 int i, edit_count, version;
4535 if (c->fc->nb_streams < 1 || c->ignore_editlist)
4537 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
4539 version = avio_r8(pb); /* version */
4540 avio_rb24(pb); /* flags */
4541 edit_count = avio_rb32(pb); /* entries */
4546 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
4547 av_free(sc->elst_data);
4549 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
4551 return AVERROR(ENOMEM);
4553 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
4554 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
4555 MOVElst *e = &sc->elst_data[i];
4558 e->duration = avio_rb64(pb);
4559 e->time = avio_rb64(pb);
4561 e->duration = avio_rb32(pb); /* segment duration */
4562 e->time = (int32_t)avio_rb32(pb); /* media time */
4564 e->rate = avio_rb32(pb) / 65536.0;
4565 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
4566 e->duration, e->time, e->rate);
4568 if (e->time < 0 && e->time != -1 &&
4569 c->fc->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
4570 av_log(c->fc, AV_LOG_ERROR, "Track %d, edit %d: Invalid edit list media time=%"PRId64"\n",
4571 c->fc->nb_streams-1, i, e->time);
4572 return AVERROR_INVALIDDATA;
4580 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4582 MOVStreamContext *sc;
4584 if (c->fc->nb_streams < 1)
4585 return AVERROR_INVALIDDATA;
4586 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
4587 sc->timecode_track = avio_rb32(pb);
4591 static int mov_read_st3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4594 MOVStreamContext *sc;
4595 enum AVStereo3DType type;
4598 if (c->fc->nb_streams < 1)
4601 st = c->fc->streams[c->fc->nb_streams - 1];
4604 if (atom.size < 5) {
4605 av_log(c->fc, AV_LOG_ERROR, "Empty stereoscopic video box\n");
4606 return AVERROR_INVALIDDATA;
4608 avio_skip(pb, 4); /* version + flags */
4613 type = AV_STEREO3D_2D;
4616 type = AV_STEREO3D_TOPBOTTOM;
4619 type = AV_STEREO3D_SIDEBYSIDE;
4622 av_log(c->fc, AV_LOG_WARNING, "Unknown st3d mode value %d\n", mode);
4626 sc->stereo3d = av_stereo3d_alloc();
4628 return AVERROR(ENOMEM);
4630 sc->stereo3d->type = type;
4634 static int mov_read_sv3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4637 MOVStreamContext *sc;
4639 int32_t yaw, pitch, roll;
4640 uint32_t l = 0, t = 0, r = 0, b = 0;
4641 uint32_t tag, padding = 0;
4642 enum AVSphericalProjection projection;
4644 if (c->fc->nb_streams < 1)
4647 st = c->fc->streams[c->fc->nb_streams - 1];
4650 if (atom.size < 8) {
4651 av_log(c->fc, AV_LOG_ERROR, "Empty spherical video box\n");
4652 return AVERROR_INVALIDDATA;
4655 size = avio_rb32(pb);
4656 if (size <= 12 || size > atom.size)
4657 return AVERROR_INVALIDDATA;
4659 tag = avio_rl32(pb);
4660 if (tag != MKTAG('s','v','h','d')) {
4661 av_log(c->fc, AV_LOG_ERROR, "Missing spherical video header\n");
4664 avio_skip(pb, 4); /* version + flags */
4665 avio_skip(pb, size - 12); /* metadata_source */
4667 size = avio_rb32(pb);
4668 if (size > atom.size)
4669 return AVERROR_INVALIDDATA;
4671 tag = avio_rl32(pb);
4672 if (tag != MKTAG('p','r','o','j')) {
4673 av_log(c->fc, AV_LOG_ERROR, "Missing projection box\n");
4677 size = avio_rb32(pb);
4678 if (size > atom.size)
4679 return AVERROR_INVALIDDATA;
4681 tag = avio_rl32(pb);
4682 if (tag != MKTAG('p','r','h','d')) {
4683 av_log(c->fc, AV_LOG_ERROR, "Missing projection header box\n");
4686 avio_skip(pb, 4); /* version + flags */
4688 /* 16.16 fixed point */
4689 yaw = avio_rb32(pb);
4690 pitch = avio_rb32(pb);
4691 roll = avio_rb32(pb);
4693 size = avio_rb32(pb);
4694 if (size > atom.size)
4695 return AVERROR_INVALIDDATA;
4697 tag = avio_rl32(pb);
4698 avio_skip(pb, 4); /* version + flags */
4700 case MKTAG('c','b','m','p'):
4701 layout = avio_rb32(pb);
4703 av_log(c->fc, AV_LOG_WARNING,
4704 "Unsupported cubemap layout %d\n", layout);
4707 projection = AV_SPHERICAL_CUBEMAP;
4708 padding = avio_rb32(pb);
4710 case MKTAG('e','q','u','i'):
4716 if (b >= UINT_MAX - t || r >= UINT_MAX - l) {
4717 av_log(c->fc, AV_LOG_ERROR,
4718 "Invalid bounding rectangle coordinates "
4719 "%"PRIu32",%"PRIu32",%"PRIu32",%"PRIu32"\n", l, t, r, b);
4720 return AVERROR_INVALIDDATA;
4723 if (l || t || r || b)
4724 projection = AV_SPHERICAL_EQUIRECTANGULAR_TILE;
4726 projection = AV_SPHERICAL_EQUIRECTANGULAR;
4729 av_log(c->fc, AV_LOG_ERROR, "Unknown projection type\n");
4733 sc->spherical = av_spherical_alloc(&sc->spherical_size);
4735 return AVERROR(ENOMEM);
4737 sc->spherical->projection = projection;
4739 sc->spherical->yaw = yaw;
4740 sc->spherical->pitch = pitch;
4741 sc->spherical->roll = roll;
4743 sc->spherical->padding = padding;
4745 sc->spherical->bound_left = l;
4746 sc->spherical->bound_top = t;
4747 sc->spherical->bound_right = r;
4748 sc->spherical->bound_bottom = b;
4753 static int mov_parse_uuid_spherical(MOVStreamContext *sc, AVIOContext *pb, size_t len)
4756 uint8_t *buffer = av_malloc(len + 1);
4760 return AVERROR(ENOMEM);
4763 ret = ffio_read_size(pb, buffer, len);
4767 /* Check for mandatory keys and values, try to support XML as best-effort */
4768 if (av_stristr(buffer, "<GSpherical:StitchingSoftware>") &&
4769 (val = av_stristr(buffer, "<GSpherical:Spherical>")) &&
4770 av_stristr(val, "true") &&
4771 (val = av_stristr(buffer, "<GSpherical:Stitched>")) &&
4772 av_stristr(val, "true") &&
4773 (val = av_stristr(buffer, "<GSpherical:ProjectionType>")) &&
4774 av_stristr(val, "equirectangular")) {
4775 sc->spherical = av_spherical_alloc(&sc->spherical_size);
4779 sc->spherical->projection = AV_SPHERICAL_EQUIRECTANGULAR;
4781 if (av_stristr(buffer, "<GSpherical:StereoMode>")) {
4782 enum AVStereo3DType mode;
4784 if (av_stristr(buffer, "left-right"))
4785 mode = AV_STEREO3D_SIDEBYSIDE;
4786 else if (av_stristr(buffer, "top-bottom"))
4787 mode = AV_STEREO3D_TOPBOTTOM;
4789 mode = AV_STEREO3D_2D;
4791 sc->stereo3d = av_stereo3d_alloc();
4795 sc->stereo3d->type = mode;
4799 val = av_stristr(buffer, "<GSpherical:InitialViewHeadingDegrees>");
4801 sc->spherical->yaw = strtol(val, NULL, 10) * (1 << 16);
4802 val = av_stristr(buffer, "<GSpherical:InitialViewPitchDegrees>");
4804 sc->spherical->pitch = strtol(val, NULL, 10) * (1 << 16);
4805 val = av_stristr(buffer, "<GSpherical:InitialViewRollDegrees>");
4807 sc->spherical->roll = strtol(val, NULL, 10) * (1 << 16);
4815 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4818 MOVStreamContext *sc;
4821 static const uint8_t uuid_isml_manifest[] = {
4822 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4823 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4825 static const uint8_t uuid_xmp[] = {
4826 0xbe, 0x7a, 0xcf, 0xcb, 0x97, 0xa9, 0x42, 0xe8,
4827 0x9c, 0x71, 0x99, 0x94, 0x91, 0xe3, 0xaf, 0xac
4829 static const uint8_t uuid_spherical[] = {
4830 0xff, 0xcc, 0x82, 0x63, 0xf8, 0x55, 0x4a, 0x93,
4831 0x88, 0x14, 0x58, 0x7a, 0x02, 0x52, 0x1f, 0xdd,
4834 if (atom.size < sizeof(uuid) || atom.size >= FFMIN(INT_MAX, SIZE_MAX))
4835 return AVERROR_INVALIDDATA;
4837 if (c->fc->nb_streams < 1)
4839 st = c->fc->streams[c->fc->nb_streams - 1];
4842 ret = avio_read(pb, uuid, sizeof(uuid));
4845 } else if (ret != sizeof(uuid)) {
4846 return AVERROR_INVALIDDATA;
4848 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
4849 uint8_t *buffer, *ptr;
4851 size_t len = atom.size - sizeof(uuid);
4854 return AVERROR_INVALIDDATA;
4856 ret = avio_skip(pb, 4); // zeroes
4859 buffer = av_mallocz(len + 1);
4861 return AVERROR(ENOMEM);
4863 ret = avio_read(pb, buffer, len);
4867 } else if (ret != len) {
4869 return AVERROR_INVALIDDATA;
4873 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
4874 ptr += sizeof("systemBitrate=\"") - 1;
4875 c->bitrates_count++;
4876 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
4878 c->bitrates_count = 0;
4880 return AVERROR(ENOMEM);
4883 ret = strtol(ptr, &endptr, 10);
4884 if (ret < 0 || errno || *endptr != '"') {
4885 c->bitrates[c->bitrates_count - 1] = 0;
4887 c->bitrates[c->bitrates_count - 1] = ret;
4892 } else if (!memcmp(uuid, uuid_xmp, sizeof(uuid))) {
4894 size_t len = atom.size - sizeof(uuid);
4895 if (c->export_xmp) {
4896 buffer = av_mallocz(len + 1);
4898 return AVERROR(ENOMEM);
4900 ret = avio_read(pb, buffer, len);
4904 } else if (ret != len) {
4906 return AVERROR_INVALIDDATA;
4909 av_dict_set(&c->fc->metadata, "xmp", buffer, 0);
4912 // skip all uuid atom, which makes it fast for long uuid-xmp file
4913 ret = avio_skip(pb, len);
4917 } else if (!memcmp(uuid, uuid_spherical, sizeof(uuid))) {
4918 size_t len = atom.size - sizeof(uuid);
4919 ret = mov_parse_uuid_spherical(sc, pb, len);
4923 av_log(c->fc, AV_LOG_WARNING, "Invalid spherical metadata found\n"); }
4928 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4931 uint8_t content[16];
4936 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
4942 && !memcmp(content, "Anevia\x1A\x1A", 8)
4943 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
4944 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
4950 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4952 uint32_t format = avio_rl32(pb);
4953 MOVStreamContext *sc;
4957 if (c->fc->nb_streams < 1)
4959 st = c->fc->streams[c->fc->nb_streams - 1];
4964 case MKTAG('e','n','c','v'): // encrypted video
4965 case MKTAG('e','n','c','a'): // encrypted audio
4966 id = mov_codec_id(st, format);
4967 if (st->codecpar->codec_id != AV_CODEC_ID_NONE &&
4968 st->codecpar->codec_id != id) {
4969 av_log(c->fc, AV_LOG_WARNING,
4970 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
4971 (char*)&format, st->codecpar->codec_id);
4975 st->codecpar->codec_id = id;
4976 sc->format = format;
4980 if (format != sc->format) {
4981 av_log(c->fc, AV_LOG_WARNING,
4982 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4983 (char*)&format, (char*)&sc->format);
4991 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4994 MOVStreamContext *sc;
4995 size_t auxiliary_info_size;
4997 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
5000 st = c->fc->streams[c->fc->nb_streams - 1];
5003 if (sc->cenc.aes_ctr) {
5004 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
5005 return AVERROR_INVALIDDATA;
5008 avio_r8(pb); /* version */
5009 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
5011 avio_rb32(pb); /* entries */
5013 if (atom.size < 8 || atom.size > FFMIN(INT_MAX, SIZE_MAX)) {
5014 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" invalid\n", atom.size);
5015 return AVERROR_INVALIDDATA;
5018 /* save the auxiliary info as is */
5019 auxiliary_info_size = atom.size - 8;
5021 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
5022 if (!sc->cenc.auxiliary_info) {
5023 return AVERROR(ENOMEM);
5026 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
5027 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
5028 sc->cenc.auxiliary_info_index = 0;
5030 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
5031 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
5032 return AVERROR_INVALIDDATA;
5035 /* initialize the cipher */
5036 sc->cenc.aes_ctr = av_aes_ctr_alloc();
5037 if (!sc->cenc.aes_ctr) {
5038 return AVERROR(ENOMEM);
5041 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
5044 static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5047 MOVStreamContext *sc;
5049 int atom_header_size;
5052 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
5055 st = c->fc->streams[c->fc->nb_streams - 1];
5058 if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
5059 av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
5060 return AVERROR_INVALIDDATA;
5063 atom_header_size = 9;
5065 avio_r8(pb); /* version */
5066 flags = avio_rb24(pb);
5068 if ((flags & 0x01) != 0) {
5069 atom_header_size += 8;
5071 avio_rb32(pb); /* info type */
5072 avio_rb32(pb); /* info type param */
5075 sc->cenc.auxiliary_info_default_size = avio_r8(pb);
5076 avio_rb32(pb); /* entries */
5078 if (atom.size <= atom_header_size) {
5082 if (atom.size > FFMIN(INT_MAX, SIZE_MAX)) {
5083 av_log(c->fc, AV_LOG_ERROR, "saiz atom auxiliary_info_sizes size %"PRId64" invalid\n", atom.size);
5084 return AVERROR_INVALIDDATA;
5087 /* save the auxiliary info sizes as is */
5088 data_size = atom.size - atom_header_size;
5090 sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
5091 if (!sc->cenc.auxiliary_info_sizes) {
5092 return AVERROR(ENOMEM);
5095 sc->cenc.auxiliary_info_sizes_count = data_size;
5097 if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
5098 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
5099 return AVERROR_INVALIDDATA;
5105 static int mov_read_dfla(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5108 int last, type, size, ret;
5111 if (c->fc->nb_streams < 1)
5113 st = c->fc->streams[c->fc->nb_streams-1];
5115 if ((uint64_t)atom.size > (1<<30) || atom.size < 42)
5116 return AVERROR_INVALIDDATA;
5118 /* Check FlacSpecificBox version. */
5119 if (avio_r8(pb) != 0)
5120 return AVERROR_INVALIDDATA;
5122 avio_rb24(pb); /* Flags */
5124 avio_read(pb, buf, sizeof(buf));
5125 flac_parse_block_header(buf, &last, &type, &size);
5127 if (type != FLAC_METADATA_TYPE_STREAMINFO || size != FLAC_STREAMINFO_SIZE) {
5128 av_log(c->fc, AV_LOG_ERROR, "STREAMINFO must be first FLACMetadataBlock\n");
5129 return AVERROR_INVALIDDATA;
5132 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
5137 av_log(c->fc, AV_LOG_WARNING, "non-STREAMINFO FLACMetadataBlock(s) ignored\n");
5142 static int mov_seek_auxiliary_info(MOVContext *c, MOVStreamContext *sc, int64_t index)
5144 size_t auxiliary_info_seek_offset = 0;
5147 if (sc->cenc.auxiliary_info_default_size) {
5148 auxiliary_info_seek_offset = (size_t)sc->cenc.auxiliary_info_default_size * index;
5149 } else if (sc->cenc.auxiliary_info_sizes) {
5150 if (index > sc->cenc.auxiliary_info_sizes_count) {
5151 av_log(c, AV_LOG_ERROR, "current sample %"PRId64" greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
5152 index, sc->cenc.auxiliary_info_sizes_count);
5153 return AVERROR_INVALIDDATA;
5156 for (i = 0; i < index; i++) {
5157 auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
5161 if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
5162 av_log(c, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
5163 auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
5164 return AVERROR_INVALIDDATA;
5167 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
5168 sc->cenc.auxiliary_info_index = index;
5172 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, int64_t index, uint8_t *input, int size)
5174 uint32_t encrypted_bytes;
5175 uint16_t subsample_count;
5176 uint16_t clear_bytes;
5177 uint8_t* input_end = input + size;
5180 if (index != sc->cenc.auxiliary_info_index) {
5181 ret = mov_seek_auxiliary_info(c, sc, index);
5188 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5189 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
5190 return AVERROR_INVALIDDATA;
5193 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
5194 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
5196 if (!sc->cenc.use_subsamples)
5198 /* decrypt the whole packet */
5199 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
5203 /* read the subsample count */
5204 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5205 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
5206 return AVERROR_INVALIDDATA;
5209 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
5210 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
5212 for (; subsample_count > 0; subsample_count--)
5214 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5215 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
5216 return AVERROR_INVALIDDATA;
5219 /* read the number of clear / encrypted bytes */
5220 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
5221 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
5222 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
5223 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
5225 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
5226 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
5227 return AVERROR_INVALIDDATA;
5230 /* skip the clear bytes */
5231 input += clear_bytes;
5233 /* decrypt the encrypted bytes */
5234 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
5235 input += encrypted_bytes;
5238 if (input < input_end) {
5239 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
5240 return AVERROR_INVALIDDATA;
5243 sc->cenc.auxiliary_info_index++;
5247 static const MOVParseTableEntry mov_default_parse_table[] = {
5248 { MKTAG('A','C','L','R'), mov_read_aclr },
5249 { MKTAG('A','P','R','G'), mov_read_avid },
5250 { MKTAG('A','A','L','P'), mov_read_avid },
5251 { MKTAG('A','R','E','S'), mov_read_ares },
5252 { MKTAG('a','v','s','s'), mov_read_avss },
5253 { MKTAG('c','h','p','l'), mov_read_chpl },
5254 { MKTAG('c','o','6','4'), mov_read_stco },
5255 { MKTAG('c','o','l','r'), mov_read_colr },
5256 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
5257 { MKTAG('d','i','n','f'), mov_read_default },
5258 { MKTAG('D','p','x','E'), mov_read_dpxe },
5259 { MKTAG('d','r','e','f'), mov_read_dref },
5260 { MKTAG('e','d','t','s'), mov_read_default },
5261 { MKTAG('e','l','s','t'), mov_read_elst },
5262 { MKTAG('e','n','d','a'), mov_read_enda },
5263 { MKTAG('f','i','e','l'), mov_read_fiel },
5264 { MKTAG('a','d','r','m'), mov_read_adrm },
5265 { MKTAG('f','t','y','p'), mov_read_ftyp },
5266 { MKTAG('g','l','b','l'), mov_read_glbl },
5267 { MKTAG('h','d','l','r'), mov_read_hdlr },
5268 { MKTAG('i','l','s','t'), mov_read_ilst },
5269 { MKTAG('j','p','2','h'), mov_read_jp2h },
5270 { MKTAG('m','d','a','t'), mov_read_mdat },
5271 { MKTAG('m','d','h','d'), mov_read_mdhd },
5272 { MKTAG('m','d','i','a'), mov_read_default },
5273 { MKTAG('m','e','t','a'), mov_read_meta },
5274 { MKTAG('m','i','n','f'), mov_read_default },
5275 { MKTAG('m','o','o','f'), mov_read_moof },
5276 { MKTAG('m','o','o','v'), mov_read_moov },
5277 { MKTAG('m','v','e','x'), mov_read_default },
5278 { MKTAG('m','v','h','d'), mov_read_mvhd },
5279 { MKTAG('S','M','I',' '), mov_read_svq3 },
5280 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
5281 { MKTAG('a','v','c','C'), mov_read_glbl },
5282 { MKTAG('p','a','s','p'), mov_read_pasp },
5283 { MKTAG('s','i','d','x'), mov_read_sidx },
5284 { MKTAG('s','t','b','l'), mov_read_default },
5285 { MKTAG('s','t','c','o'), mov_read_stco },
5286 { MKTAG('s','t','p','s'), mov_read_stps },
5287 { MKTAG('s','t','r','f'), mov_read_strf },
5288 { MKTAG('s','t','s','c'), mov_read_stsc },
5289 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
5290 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
5291 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
5292 { MKTAG('s','t','t','s'), mov_read_stts },
5293 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
5294 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
5295 { MKTAG('t','f','d','t'), mov_read_tfdt },
5296 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
5297 { MKTAG('t','r','a','k'), mov_read_trak },
5298 { MKTAG('t','r','a','f'), mov_read_default },
5299 { MKTAG('t','r','e','f'), mov_read_default },
5300 { MKTAG('t','m','c','d'), mov_read_tmcd },
5301 { MKTAG('c','h','a','p'), mov_read_chap },
5302 { MKTAG('t','r','e','x'), mov_read_trex },
5303 { MKTAG('t','r','u','n'), mov_read_trun },
5304 { MKTAG('u','d','t','a'), mov_read_default },
5305 { MKTAG('w','a','v','e'), mov_read_wave },
5306 { MKTAG('e','s','d','s'), mov_read_esds },
5307 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
5308 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
5309 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
5310 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
5311 { MKTAG('w','f','e','x'), mov_read_wfex },
5312 { MKTAG('c','m','o','v'), mov_read_cmov },
5313 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
5314 { MKTAG('d','v','c','1'), mov_read_dvc1 },
5315 { MKTAG('s','b','g','p'), mov_read_sbgp },
5316 { MKTAG('h','v','c','C'), mov_read_glbl },
5317 { MKTAG('u','u','i','d'), mov_read_uuid },
5318 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
5319 { MKTAG('f','r','e','e'), mov_read_free },
5320 { MKTAG('-','-','-','-'), mov_read_custom },
5321 { MKTAG('s','i','n','f'), mov_read_default },
5322 { MKTAG('f','r','m','a'), mov_read_frma },
5323 { MKTAG('s','e','n','c'), mov_read_senc },
5324 { MKTAG('s','a','i','z'), mov_read_saiz },
5325 { MKTAG('d','f','L','a'), mov_read_dfla },
5326 { MKTAG('s','t','3','d'), mov_read_st3d }, /* stereoscopic 3D video box */
5327 { MKTAG('s','v','3','d'), mov_read_sv3d }, /* spherical video box */
5331 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5333 int64_t total_size = 0;
5337 if (c->atom_depth > 10) {
5338 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
5339 return AVERROR_INVALIDDATA;
5344 atom.size = INT64_MAX;
5345 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
5346 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
5349 if (atom.size >= 8) {
5350 a.size = avio_rb32(pb);
5351 a.type = avio_rl32(pb);
5352 if (a.type == MKTAG('f','r','e','e') &&
5354 c->fc->strict_std_compliance < FF_COMPLIANCE_STRICT &&
5357 uint32_t *type = (uint32_t *)buf + 1;
5358 if (avio_read(pb, buf, 8) != 8)
5359 return AVERROR_INVALIDDATA;
5360 avio_seek(pb, -8, SEEK_CUR);
5361 if (*type == MKTAG('m','v','h','d') ||
5362 *type == MKTAG('c','m','o','v')) {
5363 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
5364 a.type = MKTAG('m','o','o','v');
5367 if (atom.type != MKTAG('r','o','o','t') &&
5368 atom.type != MKTAG('m','o','o','v'))
5370 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
5372 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
5379 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
5380 a.size = avio_rb64(pb) - 8;
5384 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
5385 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
5387 a.size = atom.size - total_size + 8;
5392 a.size = FFMIN(a.size, atom.size - total_size);
5394 for (i = 0; mov_default_parse_table[i].type; i++)
5395 if (mov_default_parse_table[i].type == a.type) {
5396 parse = mov_default_parse_table[i].parse;
5400 // container is user data
5401 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
5402 atom.type == MKTAG('i','l','s','t')))
5403 parse = mov_read_udta_string;
5405 // Supports parsing the QuickTime Metadata Keys.
5406 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
5407 if (!parse && c->found_hdlr_mdta &&
5408 atom.type == MKTAG('m','e','t','a') &&
5409 a.type == MKTAG('k','e','y','s')) {
5410 parse = mov_read_keys;
5413 if (!parse) { /* skip leaf atoms data */
5414 avio_skip(pb, a.size);
5416 int64_t start_pos = avio_tell(pb);
5418 int err = parse(c, pb, a);
5423 if (c->found_moov && c->found_mdat &&
5424 ((!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
5425 start_pos + a.size == avio_size(pb))) {
5426 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
5427 c->next_root_atom = start_pos + a.size;
5431 left = a.size - avio_tell(pb) + start_pos;
5432 if (left > 0) /* skip garbage at atom end */
5433 avio_skip(pb, left);
5434 else if (left < 0) {
5435 av_log(c->fc, AV_LOG_WARNING,
5436 "overread end of atom '%.4s' by %"PRId64" bytes\n",
5437 (char*)&a.type, -left);
5438 avio_seek(pb, left, SEEK_CUR);
5442 total_size += a.size;
5445 if (total_size < atom.size && atom.size < 0x7ffff)
5446 avio_skip(pb, atom.size - total_size);
5452 static int mov_probe(AVProbeData *p)
5457 int moov_offset = -1;
5459 /* check file header */
5462 /* ignore invalid offset */
5463 if ((offset + 8) > (unsigned int)p->buf_size)
5465 tag = AV_RL32(p->buf + offset + 4);
5467 /* check for obvious tags */
5468 case MKTAG('m','o','o','v'):
5469 moov_offset = offset + 4;
5470 case MKTAG('m','d','a','t'):
5471 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
5472 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
5473 case MKTAG('f','t','y','p'):
5474 if (AV_RB32(p->buf+offset) < 8 &&
5475 (AV_RB32(p->buf+offset) != 1 ||
5476 offset + 12 > (unsigned int)p->buf_size ||
5477 AV_RB64(p->buf+offset + 8) == 0)) {
5478 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
5479 } else if (tag == MKTAG('f','t','y','p') &&
5480 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
5481 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
5483 score = FFMAX(score, 5);
5485 score = AVPROBE_SCORE_MAX;
5487 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5489 /* those are more common words, so rate then a bit less */
5490 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
5491 case MKTAG('w','i','d','e'):
5492 case MKTAG('f','r','e','e'):
5493 case MKTAG('j','u','n','k'):
5494 case MKTAG('p','i','c','t'):
5495 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
5496 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5498 case MKTAG(0x82,0x82,0x7f,0x7d):
5499 case MKTAG('s','k','i','p'):
5500 case MKTAG('u','u','i','d'):
5501 case MKTAG('p','r','f','l'):
5502 /* if we only find those cause probedata is too small at least rate them */
5503 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
5504 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5507 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5510 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
5511 /* moov atom in the header - we should make sure that this is not a
5512 * MOV-packed MPEG-PS */
5513 offset = moov_offset;
5515 while(offset < (p->buf_size - 16)){ /* Sufficient space */
5516 /* We found an actual hdlr atom */
5517 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
5518 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
5519 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
5520 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
5521 /* We found a media handler reference atom describing an
5522 * MPEG-PS-in-MOV, return a
5523 * low score to force expanding the probe window until
5524 * mpegps_probe finds what it needs */
5535 // must be done after parsing all trak because there's no order requirement
5536 static void mov_read_chapters(AVFormatContext *s)
5538 MOVContext *mov = s->priv_data;
5540 MOVStreamContext *sc;
5545 for (j = 0; j < mov->nb_chapter_tracks; j++) {
5546 chapter_track = mov->chapter_tracks[j];
5548 for (i = 0; i < s->nb_streams; i++)
5549 if (s->streams[i]->id == chapter_track) {
5554 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
5559 cur_pos = avio_tell(sc->pb);
5561 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5562 st->disposition |= AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS;
5563 if (st->nb_index_entries) {
5564 // Retrieve the first frame, if possible
5566 AVIndexEntry *sample = &st->index_entries[0];
5567 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
5568 av_log(s, AV_LOG_ERROR, "Failed to retrieve first frame\n");
5572 if (av_get_packet(sc->pb, &pkt, sample->size) < 0)
5575 st->attached_pic = pkt;
5576 st->attached_pic.stream_index = st->index;
5577 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
5580 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
5581 st->codecpar->codec_id = AV_CODEC_ID_BIN_DATA;
5582 st->discard = AVDISCARD_ALL;
5583 for (i = 0; i < st->nb_index_entries; i++) {
5584 AVIndexEntry *sample = &st->index_entries[i];
5585 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
5590 if (end < sample->timestamp) {
5591 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
5592 end = AV_NOPTS_VALUE;
5595 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
5596 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
5600 // the first two bytes are the length of the title
5601 len = avio_rb16(sc->pb);
5602 if (len > sample->size-2)
5604 title_len = 2*len + 1;
5605 if (!(title = av_mallocz(title_len)))
5608 // The samples could theoretically be in any encoding if there's an encd
5609 // atom following, but in practice are only utf-8 or utf-16, distinguished
5610 // instead by the presence of a BOM
5614 ch = avio_rb16(sc->pb);
5616 avio_get_str16be(sc->pb, len, title, title_len);
5617 else if (ch == 0xfffe)
5618 avio_get_str16le(sc->pb, len, title, title_len);
5621 if (len == 1 || len == 2)
5624 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
5628 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
5633 avio_seek(sc->pb, cur_pos, SEEK_SET);
5637 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
5638 uint32_t value, int flags)
5641 char buf[AV_TIMECODE_STR_SIZE];
5642 AVRational rate = st->avg_frame_rate;
5643 int ret = av_timecode_init(&tc, rate, flags, 0, s);
5646 av_dict_set(&st->metadata, "timecode",
5647 av_timecode_make_string(&tc, buf, value), 0);
5651 static int mov_read_rtmd_track(AVFormatContext *s, AVStream *st)
5653 MOVStreamContext *sc = st->priv_data;
5654 char buf[AV_TIMECODE_STR_SIZE];
5655 int64_t cur_pos = avio_tell(sc->pb);
5656 int hh, mm, ss, ff, drop;
5658 if (!st->nb_index_entries)
5661 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
5662 avio_skip(s->pb, 13);
5663 hh = avio_r8(s->pb);
5664 mm = avio_r8(s->pb);
5665 ss = avio_r8(s->pb);
5666 drop = avio_r8(s->pb);
5667 ff = avio_r8(s->pb);
5668 snprintf(buf, AV_TIMECODE_STR_SIZE, "%02d:%02d:%02d%c%02d",
5669 hh, mm, ss, drop ? ';' : ':', ff);
5670 av_dict_set(&st->metadata, "timecode", buf, 0);
5672 avio_seek(sc->pb, cur_pos, SEEK_SET);
5676 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
5678 MOVStreamContext *sc = st->priv_data;
5680 int64_t cur_pos = avio_tell(sc->pb);
5683 if (!st->nb_index_entries)
5686 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
5687 value = avio_rb32(s->pb);
5689 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
5690 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
5691 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
5693 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
5694 * not the case) and thus assume "frame number format" instead of QT one.
5695 * No sample with tmcd track can be found with a QT timecode at the moment,
5696 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
5698 parse_timecode_in_framenum_format(s, st, value, flags);
5700 avio_seek(sc->pb, cur_pos, SEEK_SET);
5704 static int mov_read_close(AVFormatContext *s)
5706 MOVContext *mov = s->priv_data;
5709 for (i = 0; i < s->nb_streams; i++) {
5710 AVStream *st = s->streams[i];
5711 MOVStreamContext *sc = st->priv_data;
5716 av_freep(&sc->ctts_data);
5717 for (j = 0; j < sc->drefs_count; j++) {
5718 av_freep(&sc->drefs[j].path);
5719 av_freep(&sc->drefs[j].dir);
5721 av_freep(&sc->drefs);
5723 sc->drefs_count = 0;
5725 if (!sc->pb_is_copied)
5726 ff_format_io_close(s, &sc->pb);
5729 av_freep(&sc->chunk_offsets);
5730 av_freep(&sc->stsc_data);
5731 av_freep(&sc->sample_sizes);
5732 av_freep(&sc->keyframes);
5733 av_freep(&sc->stts_data);
5734 av_freep(&sc->stps_data);
5735 av_freep(&sc->elst_data);
5736 av_freep(&sc->rap_group);
5737 av_freep(&sc->display_matrix);
5738 av_freep(&sc->index_ranges);
5741 for (j = 0; j < sc->stsd_count; j++)
5742 av_free(sc->extradata[j]);
5743 av_freep(&sc->extradata);
5744 av_freep(&sc->extradata_size);
5746 av_freep(&sc->cenc.auxiliary_info);
5747 av_freep(&sc->cenc.auxiliary_info_sizes);
5748 av_aes_ctr_free(sc->cenc.aes_ctr);
5750 av_freep(&sc->stereo3d);
5751 av_freep(&sc->spherical);
5754 if (mov->dv_demux) {
5755 avformat_free_context(mov->dv_fctx);
5756 mov->dv_fctx = NULL;
5759 if (mov->meta_keys) {
5760 for (i = 1; i < mov->meta_keys_count; i++) {
5761 av_freep(&mov->meta_keys[i]);
5763 av_freep(&mov->meta_keys);
5766 av_freep(&mov->trex_data);
5767 av_freep(&mov->bitrates);
5769 for (i = 0; i < mov->fragment_index_count; i++) {
5770 MOVFragmentIndex* index = mov->fragment_index_data[i];
5771 av_freep(&index->items);
5772 av_freep(&mov->fragment_index_data[i]);
5774 av_freep(&mov->fragment_index_data);
5776 av_freep(&mov->aes_decrypt);
5781 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
5785 for (i = 0; i < s->nb_streams; i++) {
5786 AVStream *st = s->streams[i];
5787 MOVStreamContext *sc = st->priv_data;
5789 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
5790 sc->timecode_track == tmcd_id)
5796 /* look for a tmcd track not referenced by any video track, and export it globally */
5797 static void export_orphan_timecode(AVFormatContext *s)
5801 for (i = 0; i < s->nb_streams; i++) {
5802 AVStream *st = s->streams[i];
5804 if (st->codecpar->codec_tag == MKTAG('t','m','c','d') &&
5805 !tmcd_is_referenced(s, i + 1)) {
5806 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
5808 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
5815 static int read_tfra(MOVContext *mov, AVIOContext *f)
5817 MOVFragmentIndex* index = NULL;
5818 int version, fieldlength, i, j;
5819 int64_t pos = avio_tell(f);
5820 uint32_t size = avio_rb32(f);
5823 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
5826 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
5827 index = av_mallocz(sizeof(MOVFragmentIndex));
5829 return AVERROR(ENOMEM);
5832 tmp = av_realloc_array(mov->fragment_index_data,
5833 mov->fragment_index_count + 1,
5834 sizeof(MOVFragmentIndex*));
5837 return AVERROR(ENOMEM);
5839 mov->fragment_index_data = tmp;
5840 mov->fragment_index_data[mov->fragment_index_count++] = index;
5842 version = avio_r8(f);
5844 index->track_id = avio_rb32(f);
5845 fieldlength = avio_rb32(f);
5846 index->item_count = avio_rb32(f);
5847 index->items = av_mallocz_array(
5848 index->item_count, sizeof(MOVFragmentIndexItem));
5849 if (!index->items) {
5850 index->item_count = 0;
5851 return AVERROR(ENOMEM);
5853 for (i = 0; i < index->item_count; i++) {
5854 int64_t time, offset;
5856 time = avio_rb64(f);
5857 offset = avio_rb64(f);
5859 time = avio_rb32(f);
5860 offset = avio_rb32(f);
5862 index->items[i].time = time;
5863 index->items[i].moof_offset = offset;
5864 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
5866 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
5868 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
5872 avio_seek(f, pos + size, SEEK_SET);
5876 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
5878 int64_t stream_size = avio_size(f);
5879 int64_t original_pos = avio_tell(f);
5883 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
5887 mfra_size = avio_rb32(f);
5888 if (mfra_size < 0 || mfra_size > stream_size) {
5889 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
5892 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
5896 if (avio_rb32(f) != mfra_size) {
5897 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
5900 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
5901 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
5904 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
5906 ret = read_tfra(c, f);
5912 seek_ret = avio_seek(f, original_pos, SEEK_SET);
5914 av_log(c->fc, AV_LOG_ERROR,
5915 "failed to seek back after looking for mfra\n");
5921 static int mov_read_header(AVFormatContext *s)
5923 MOVContext *mov = s->priv_data;
5924 AVIOContext *pb = s->pb;
5926 MOVAtom atom = { AV_RL32("root") };
5929 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
5930 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
5931 mov->decryption_key_len, AES_CTR_KEY_SIZE);
5932 return AVERROR(EINVAL);
5936 mov->trak_index = -1;
5937 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
5938 if (pb->seekable & AVIO_SEEKABLE_NORMAL)
5939 atom.size = avio_size(pb);
5941 atom.size = INT64_MAX;
5943 /* check MOV header */
5945 if (mov->moov_retry)
5946 avio_seek(pb, 0, SEEK_SET);
5947 if ((err = mov_read_default(mov, pb, atom)) < 0) {
5948 av_log(s, AV_LOG_ERROR, "error reading header\n");
5952 } while ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mov->found_moov && !mov->moov_retry++);
5953 if (!mov->found_moov) {
5954 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
5956 return AVERROR_INVALIDDATA;
5958 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
5960 if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
5961 if (mov->nb_chapter_tracks > 0 && !mov->ignore_chapters)
5962 mov_read_chapters(s);
5963 for (i = 0; i < s->nb_streams; i++)
5964 if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd")) {
5965 mov_read_timecode_track(s, s->streams[i]);
5966 } else if (s->streams[i]->codecpar->codec_tag == AV_RL32("rtmd")) {
5967 mov_read_rtmd_track(s, s->streams[i]);
5971 /* copy timecode metadata from tmcd tracks to the related video streams */
5972 for (i = 0; i < s->nb_streams; i++) {
5973 AVStream *st = s->streams[i];
5974 MOVStreamContext *sc = st->priv_data;
5975 if (sc->timecode_track > 0) {
5976 AVDictionaryEntry *tcr;
5977 int tmcd_st_id = -1;
5979 for (j = 0; j < s->nb_streams; j++)
5980 if (s->streams[j]->id == sc->timecode_track)
5983 if (tmcd_st_id < 0 || tmcd_st_id == i)
5985 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
5987 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
5990 export_orphan_timecode(s);
5992 for (i = 0; i < s->nb_streams; i++) {
5993 AVStream *st = s->streams[i];
5994 MOVStreamContext *sc = st->priv_data;
5995 fix_timescale(mov, sc);
5996 if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {
5997 st->skip_samples = sc->start_pad;
5999 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
6000 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
6001 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
6002 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6003 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
6004 st->codecpar->width = sc->width;
6005 st->codecpar->height = sc->height;
6007 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
6008 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
6012 if (mov->handbrake_version &&
6013 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
6014 st->codecpar->codec_id == AV_CODEC_ID_MP3
6016 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
6017 st->need_parsing = AVSTREAM_PARSE_FULL;
6021 if (mov->trex_data) {
6022 for (i = 0; i < s->nb_streams; i++) {
6023 AVStream *st = s->streams[i];
6024 MOVStreamContext *sc = st->priv_data;
6025 if (st->duration > 0) {
6026 if (sc->data_size > INT64_MAX / sc->time_scale / 8) {
6027 av_log(s, AV_LOG_ERROR, "Overflow during bit rate calculation %"PRId64" * 8 * %d\n",
6028 sc->data_size, sc->time_scale);
6030 return AVERROR_INVALIDDATA;
6032 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
6037 if (mov->use_mfra_for > 0) {
6038 for (i = 0; i < s->nb_streams; i++) {
6039 AVStream *st = s->streams[i];
6040 MOVStreamContext *sc = st->priv_data;
6041 if (sc->duration_for_fps > 0) {
6042 if (sc->data_size > INT64_MAX / sc->time_scale / 8) {
6043 av_log(s, AV_LOG_ERROR, "Overflow during bit rate calculation %"PRId64" * 8 * %d\n",
6044 sc->data_size, sc->time_scale);
6046 return AVERROR_INVALIDDATA;
6048 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /
6049 sc->duration_for_fps;
6054 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
6055 if (mov->bitrates[i]) {
6056 s->streams[i]->codecpar->bit_rate = mov->bitrates[i];
6060 ff_rfps_calculate(s);
6062 for (i = 0; i < s->nb_streams; i++) {
6063 AVStream *st = s->streams[i];
6064 MOVStreamContext *sc = st->priv_data;
6066 switch (st->codecpar->codec_type) {
6067 case AVMEDIA_TYPE_AUDIO:
6068 err = ff_replaygain_export(st, s->metadata);
6074 case AVMEDIA_TYPE_VIDEO:
6075 if (sc->display_matrix) {
6076 err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, (uint8_t*)sc->display_matrix,
6077 sizeof(int32_t) * 9);
6081 sc->display_matrix = NULL;
6084 err = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D,
6085 (uint8_t *)sc->stereo3d,
6086 sizeof(*sc->stereo3d));
6090 sc->stereo3d = NULL;
6092 if (sc->spherical) {
6093 err = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
6094 (uint8_t *)sc->spherical,
6095 sc->spherical_size);
6099 sc->spherical = NULL;
6104 ff_configure_buffers_for_index(s, AV_TIME_BASE);
6109 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
6111 AVIndexEntry *sample = NULL;
6112 int64_t best_dts = INT64_MAX;
6114 for (i = 0; i < s->nb_streams; i++) {
6115 AVStream *avst = s->streams[i];
6116 MOVStreamContext *msc = avst->priv_data;
6117 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
6118 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
6119 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
6120 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
6121 if (!sample || (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && current_sample->pos < sample->pos) ||
6122 ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
6123 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
6124 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
6125 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
6126 sample = current_sample;
6135 static int should_retry(AVIOContext *pb, int error_code) {
6136 if (error_code == AVERROR_EOF || avio_feof(pb))
6142 static int mov_switch_root(AVFormatContext *s, int64_t target)
6144 MOVContext *mov = s->priv_data;
6146 int already_read = 0;
6148 if (avio_seek(s->pb, target, SEEK_SET) != target) {
6149 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
6150 return AVERROR_INVALIDDATA;
6153 mov->next_root_atom = 0;
6155 for (i = 0; i < mov->fragment_index_count; i++) {
6156 MOVFragmentIndex *index = mov->fragment_index_data[i];
6158 for (j = 0; j < index->item_count; j++) {
6159 MOVFragmentIndexItem *item = &index->items[j];
6161 mov->next_root_atom = item->moof_offset;
6162 break; // Advance to next index in outer loop
6163 } else if (item->moof_offset == target) {
6164 index->current_item = FFMIN(j, index->current_item);
6165 if (item->headers_read)
6167 item->headers_read = 1;
6172 index->current_item = 0;
6178 mov->found_mdat = 0;
6180 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
6183 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
6188 static int mov_change_extradata(MOVStreamContext *sc, AVPacket *pkt)
6190 uint8_t *side, *extradata;
6193 /* Save the current index. */
6194 sc->last_stsd_index = sc->stsc_data[sc->stsc_index].id - 1;
6196 /* Notify the decoder that extradata changed. */
6197 extradata_size = sc->extradata_size[sc->last_stsd_index];
6198 extradata = sc->extradata[sc->last_stsd_index];
6199 if (extradata_size > 0 && extradata) {
6200 side = av_packet_new_side_data(pkt,
6201 AV_PKT_DATA_NEW_EXTRADATA,
6204 return AVERROR(ENOMEM);
6205 memcpy(side, extradata, extradata_size);
6211 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6213 MOVContext *mov = s->priv_data;
6214 MOVStreamContext *sc;
6215 AVIndexEntry *sample;
6216 AVStream *st = NULL;
6217 int64_t current_index;
6221 sample = mov_find_next_sample(s, &st);
6222 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
6223 if (!mov->next_root_atom)
6225 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
6230 /* must be done just before reading, to avoid infinite loop on sample */
6231 current_index = sc->current_index;
6232 mov_current_sample_inc(sc);
6234 if (mov->next_root_atom) {
6235 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
6236 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
6239 if (st->discard != AVDISCARD_ALL) {
6240 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
6241 if (ret64 != sample->pos) {
6242 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
6243 sc->ffindex, sample->pos);
6244 if (should_retry(sc->pb, ret64)) {
6245 mov_current_sample_dec(sc);
6247 return AVERROR_INVALIDDATA;
6250 if( st->discard == AVDISCARD_NONKEY && 0==(sample->flags & AVINDEX_KEYFRAME) ) {
6251 av_log(mov->fc, AV_LOG_DEBUG, "Nonkey frame from stream %d discarded due to AVDISCARD_NONKEY\n", sc->ffindex);
6255 ret = av_get_packet(sc->pb, pkt, sample->size);
6257 if (should_retry(sc->pb, ret)) {
6258 mov_current_sample_dec(sc);
6262 if (sc->has_palette) {
6265 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
6267 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
6269 memcpy(pal, sc->palette, AVPALETTE_SIZE);
6270 sc->has_palette = 0;
6273 #if CONFIG_DV_DEMUXER
6274 if (mov->dv_demux && sc->dv_audio_container) {
6275 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
6276 av_freep(&pkt->data);
6278 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
6283 if (st->codecpar->codec_id == AV_CODEC_ID_MP3 && !st->need_parsing && pkt->size > 4) {
6284 if (ff_mpa_check_header(AV_RB32(pkt->data)) < 0)
6285 st->need_parsing = AVSTREAM_PARSE_FULL;
6289 pkt->stream_index = sc->ffindex;
6290 pkt->dts = sample->timestamp;
6291 if (sample->flags & AVINDEX_DISCARD_FRAME) {
6292 pkt->flags |= AV_PKT_FLAG_DISCARD;
6294 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
6295 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
6296 /* update ctts context */
6298 if (sc->ctts_index < sc->ctts_count &&
6299 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
6301 sc->ctts_sample = 0;
6304 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
6305 st->index_entries[sc->current_sample].timestamp : st->duration;
6306 pkt->duration = next_dts - pkt->dts;
6307 pkt->pts = pkt->dts;
6309 if (st->discard == AVDISCARD_ALL)
6311 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
6312 pkt->pos = sample->pos;
6314 /* Multiple stsd handling. */
6315 if (sc->stsc_data) {
6316 /* Keep track of the stsc index for the given sample, then check
6317 * if the stsd index is different from the last used one. */
6319 if (mov_stsc_index_valid(sc->stsc_index, sc->stsc_count) &&
6320 mov_get_stsc_samples(sc, sc->stsc_index) == sc->stsc_sample) {
6322 sc->stsc_sample = 0;
6323 /* Do not check indexes after a switch. */
6324 } else if (sc->stsc_data[sc->stsc_index].id > 0 &&
6325 sc->stsc_data[sc->stsc_index].id - 1 < sc->stsd_count &&
6326 sc->stsc_data[sc->stsc_index].id - 1 != sc->last_stsd_index) {
6327 ret = mov_change_extradata(sc, pkt);
6334 aax_filter(pkt->data, pkt->size, mov);
6336 if (sc->cenc.aes_ctr) {
6337 ret = cenc_filter(mov, sc, current_index, pkt->data, pkt->size);
6346 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
6348 MOVContext *mov = s->priv_data;
6349 MOVStreamContext *sc = st->priv_data;
6352 if (!mov->fragment_index_complete)
6355 for (i = 0; i < mov->fragment_index_count; i++) {
6356 if (mov->fragment_index_data[i]->track_id == st->id || !sc->has_sidx) {
6357 MOVFragmentIndex *index = mov->fragment_index_data[i];
6358 for (j = index->item_count - 1; j >= 0; j--) {
6359 if (index->items[j].time <= timestamp) {
6360 if (index->items[j].headers_read)
6363 return mov_switch_root(s, index->items[j].moof_offset);
6372 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
6374 MOVStreamContext *sc = st->priv_data;
6375 int sample, time_sample;
6378 int ret = mov_seek_fragment(s, st, timestamp);
6382 sample = av_index_search_timestamp(st, timestamp, flags);
6383 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
6384 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
6386 if (sample < 0) /* not sure what to do */
6387 return AVERROR_INVALIDDATA;
6388 mov_current_sample_set(sc, sample);
6389 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
6390 /* adjust ctts index */
6391 if (sc->ctts_data) {
6393 for (i = 0; i < sc->ctts_count; i++) {
6394 int next = time_sample + sc->ctts_data[i].count;
6395 if (next > sc->current_sample) {
6397 sc->ctts_sample = sc->current_sample - time_sample;
6404 /* adjust stsd index */
6406 for (i = 0; i < sc->stsc_count; i++) {
6407 int next = time_sample + mov_get_stsc_samples(sc, i);
6408 if (next > sc->current_sample) {
6410 sc->stsc_sample = sc->current_sample - time_sample;
6419 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
6421 MOVContext *mc = s->priv_data;
6426 if (stream_index >= s->nb_streams)
6427 return AVERROR_INVALIDDATA;
6429 st = s->streams[stream_index];
6430 sample = mov_seek_stream(s, st, sample_time, flags);
6434 if (mc->seek_individually) {
6435 /* adjust seek timestamp to found sample timestamp */
6436 int64_t seek_timestamp = st->index_entries[sample].timestamp;
6438 for (i = 0; i < s->nb_streams; i++) {
6440 MOVStreamContext *sc = s->streams[i]->priv_data;
6442 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
6444 if (stream_index == i)
6447 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
6448 mov_seek_stream(s, st, timestamp, flags);
6451 for (i = 0; i < s->nb_streams; i++) {
6452 MOVStreamContext *sc;
6455 mov_current_sample_set(sc, 0);
6458 MOVStreamContext *sc;
6459 AVIndexEntry *entry = mov_find_next_sample(s, &st);
6461 return AVERROR_INVALIDDATA;
6463 if (sc->ffindex == stream_index && sc->current_sample == sample)
6465 mov_current_sample_inc(sc);
6471 #define OFFSET(x) offsetof(MOVContext, x)
6472 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
6473 static const AVOption mov_options[] = {
6474 {"use_absolute_path",
6475 "allow using absolute path when opening alias, this is a possible security issue",
6476 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
6478 {"seek_streams_individually",
6479 "Seek each stream individually to the to the closest point",
6480 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
6482 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
6484 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
6487 "use mfra for fragment timestamps",
6488 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
6489 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
6491 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
6492 FLAGS, "use_mfra_for" },
6493 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
6494 FLAGS, "use_mfra_for" },
6495 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
6496 FLAGS, "use_mfra_for" },
6497 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
6498 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
6499 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
6500 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
6501 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
6502 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
6503 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
6504 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
6505 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
6506 .flags = AV_OPT_FLAG_DECODING_PARAM },
6507 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
6508 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
6509 {.i64 = 0}, 0, 1, FLAGS },
6514 static const AVClass mov_class = {
6515 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
6516 .item_name = av_default_item_name,
6517 .option = mov_options,
6518 .version = LIBAVUTIL_VERSION_INT,
6521 AVInputFormat ff_mov_demuxer = {
6522 .name = "mov,mp4,m4a,3gp,3g2,mj2",
6523 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
6524 .priv_class = &mov_class,
6525 .priv_data_size = sizeof(MOVContext),
6526 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
6527 .read_probe = mov_probe,
6528 .read_header = mov_read_header,
6529 .read_packet = mov_read_packet,
6530 .read_close = mov_read_close,
6531 .read_seek = mov_read_seek,
6532 .flags = AVFMT_NO_BYTE_SEEK,