3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/internal.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/intfloat.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/time_internal.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/display.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/aes.h"
42 #include "libavutil/aes_ctr.h"
43 #include "libavutil/sha.h"
44 #include "libavutil/timecode.h"
45 #include "libavcodec/ac3tab.h"
48 #include "avio_internal.h"
51 #include "libavcodec/get_bits.h"
54 #include "replaygain.h"
60 #include "qtpalette.h"
62 /* those functions parse an atom */
63 /* links atom IDs to parse functions */
64 typedef struct MOVParseTableEntry {
66 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
69 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
72 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
73 unsigned len, const char *key)
77 short current, total = 0;
78 avio_rb16(pb); // unknown
79 current = avio_rb16(pb);
81 total = avio_rb16(pb);
83 snprintf(buf, sizeof(buf), "%d", current);
85 snprintf(buf, sizeof(buf), "%d/%d", current, total);
86 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
87 av_dict_set(&c->fc->metadata, key, buf, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
93 unsigned len, const char *key)
95 /* bypass padding bytes */
100 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
101 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
106 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
107 unsigned len, const char *key)
109 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
110 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
115 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
116 unsigned len, const char *key)
120 avio_r8(pb); // unknown
123 if (genre < 1 || genre > ID3v1_GENRE_MAX)
125 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
126 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
131 static const uint32_t mac_to_unicode[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
151 char *dst, int dstlen)
154 char *end = dst+dstlen-1;
157 for (i = 0; i < len; i++) {
158 uint8_t t, c = avio_r8(pb);
159 if (c < 0x80 && p < end)
162 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
168 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
172 MOVStreamContext *sc;
177 case 0xd: id = AV_CODEC_ID_MJPEG; break;
178 case 0xe: id = AV_CODEC_ID_PNG; break;
179 case 0x1b: id = AV_CODEC_ID_BMP; break;
181 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
186 st = avformat_new_stream(c->fc, NULL);
188 return AVERROR(ENOMEM);
189 sc = av_mallocz(sizeof(*sc));
191 return AVERROR(ENOMEM);
194 ret = av_get_packet(pb, &pkt, len);
198 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
199 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
200 id = AV_CODEC_ID_PNG;
202 id = AV_CODEC_ID_MJPEG;
206 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
208 st->attached_pic = pkt;
209 st->attached_pic.stream_index = st->index;
210 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
212 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
213 st->codecpar->codec_id = id;
219 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
221 char language[4] = { 0 };
222 char buf[200], place[100];
223 uint16_t langcode = 0;
224 double longitude, latitude, altitude;
225 const char *key = "location";
227 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
228 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
229 return AVERROR_INVALIDDATA;
232 avio_skip(pb, 4); // version+flags
233 langcode = avio_rb16(pb);
234 ff_mov_lang_to_iso639(langcode, language);
237 len -= avio_get_str(pb, len, place, sizeof(place));
239 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
240 return AVERROR_INVALIDDATA;
242 avio_skip(pb, 1); // role
246 av_log(c->fc, AV_LOG_ERROR, "no space for coordinates left (%d)\n", len);
247 return AVERROR_INVALIDDATA;
249 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
250 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
251 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
253 // Try to output in the same format as the ?xyz field
254 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
256 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
257 av_strlcatf(buf, sizeof(buf), "/%s", place);
259 if (*language && strcmp(language, "und")) {
261 snprintf(key2, sizeof(key2), "%s-%s", key, language);
262 av_dict_set(&c->fc->metadata, key2, buf, 0);
264 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
265 return av_dict_set(&c->fc->metadata, key, buf, 0);
268 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
271 char key2[32], language[4] = {0};
273 const char *key = NULL;
274 uint16_t langcode = 0;
275 uint32_t data_type = 0, str_size, str_size_alloc;
276 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
281 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
282 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
283 case MKTAG( 'X','M','P','_'):
284 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
285 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
286 case MKTAG( 'a','k','I','D'): key = "account_type";
287 parse = mov_metadata_int8_no_padding; break;
288 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
289 case MKTAG( 'c','a','t','g'): key = "category"; break;
290 case MKTAG( 'c','p','i','l'): key = "compilation";
291 parse = mov_metadata_int8_no_padding; break;
292 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
293 case MKTAG( 'd','e','s','c'): key = "description"; break;
294 case MKTAG( 'd','i','s','k'): key = "disc";
295 parse = mov_metadata_track_or_disc_number; break;
296 case MKTAG( 'e','g','i','d'): key = "episode_uid";
297 parse = mov_metadata_int8_no_padding; break;
298 case MKTAG( 'g','n','r','e'): key = "genre";
299 parse = mov_metadata_gnre; break;
300 case MKTAG( 'h','d','v','d'): key = "hd_video";
301 parse = mov_metadata_int8_no_padding; break;
302 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
303 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
304 case MKTAG( 'l','o','c','i'):
305 return mov_metadata_loci(c, pb, atom.size);
306 case MKTAG( 'p','c','s','t'): key = "podcast";
307 parse = mov_metadata_int8_no_padding; break;
308 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
309 parse = mov_metadata_int8_no_padding; break;
310 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
311 case MKTAG( 'r','t','n','g'): key = "rating";
312 parse = mov_metadata_int8_no_padding; break;
313 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
314 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
315 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
316 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
317 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
318 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
319 case MKTAG( 's','t','i','k'): key = "media_type";
320 parse = mov_metadata_int8_no_padding; break;
321 case MKTAG( 't','r','k','n'): key = "track";
322 parse = mov_metadata_track_or_disc_number; break;
323 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
324 case MKTAG( 't','v','e','s'): key = "episode_sort";
325 parse = mov_metadata_int8_bypass_padding; break;
326 case MKTAG( 't','v','n','n'): key = "network"; break;
327 case MKTAG( 't','v','s','h'): key = "show"; break;
328 case MKTAG( 't','v','s','n'): key = "season_number";
329 parse = mov_metadata_int8_bypass_padding; break;
330 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
331 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
332 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
333 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
334 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
335 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
336 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
337 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
338 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
339 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
340 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
341 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
342 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
343 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
344 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
345 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
346 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
347 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
348 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
349 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
350 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
351 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
352 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
353 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
354 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
355 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
356 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
357 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
358 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
359 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
360 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
361 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
362 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
363 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
364 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
367 if (c->itunes_metadata && atom.size > 8) {
368 int data_size = avio_rb32(pb);
369 int tag = avio_rl32(pb);
370 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
371 data_type = avio_rb32(pb); // type
372 avio_rb32(pb); // unknown
373 str_size = data_size - 16;
376 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
377 int ret = mov_read_covr(c, pb, data_type, str_size);
379 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
382 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
383 uint32_t index = AV_RB32(&atom.type);
384 if (index < c->meta_keys_count) {
385 key = c->meta_keys[index];
387 av_log(c->fc, AV_LOG_WARNING,
388 "The index of 'data' is out of range: %d >= %d.\n",
389 index, c->meta_keys_count);
393 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
394 str_size = avio_rb16(pb); // string length
395 if (str_size > atom.size) {
397 avio_seek(pb, -2, SEEK_CUR);
398 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
401 langcode = avio_rb16(pb);
402 ff_mov_lang_to_iso639(langcode, language);
405 str_size = atom.size;
407 if (c->export_all && !key) {
408 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
414 if (atom.size < 0 || str_size >= INT_MAX/2)
415 return AVERROR_INVALIDDATA;
417 // Allocates enough space if data_type is a int32 or float32 number, otherwise
418 // worst-case requirement for output string in case of utf8 coded input
419 num = (data_type >= 21 && data_type <= 23);
420 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
421 str = av_mallocz(str_size_alloc);
423 return AVERROR(ENOMEM);
426 parse(c, pb, str_size, key);
428 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
429 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
430 } else if (data_type == 21) { // BE signed integer, variable size
433 val = (int8_t)avio_r8(pb);
434 else if (str_size == 2)
435 val = (int16_t)avio_rb16(pb);
436 else if (str_size == 3)
437 val = ((int32_t)(avio_rb24(pb)<<8))>>8;
438 else if (str_size == 4)
439 val = (int32_t)avio_rb32(pb);
440 if (snprintf(str, str_size_alloc, "%d", val) >= str_size_alloc) {
441 av_log(c->fc, AV_LOG_ERROR,
442 "Failed to store the number (%d) in string.\n", val);
444 return AVERROR_INVALIDDATA;
446 } else if (data_type == 22) { // BE unsigned integer, variable size
447 unsigned int val = 0;
450 else if (str_size == 2)
452 else if (str_size == 3)
454 else if (str_size == 4)
456 if (snprintf(str, str_size_alloc, "%u", val) >= str_size_alloc) {
457 av_log(c->fc, AV_LOG_ERROR,
458 "Failed to store the number (%u) in string.\n", val);
460 return AVERROR_INVALIDDATA;
462 } else if (data_type == 23 && str_size >= 4) { // BE float32
463 float val = av_int2float(avio_rb32(pb));
464 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
465 av_log(c->fc, AV_LOG_ERROR,
466 "Failed to store the float32 number (%f) in string.\n", val);
468 return AVERROR_INVALIDDATA;
471 int ret = ffio_read_size(pb, str, str_size);
478 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
479 av_dict_set(&c->fc->metadata, key, str, 0);
480 if (*language && strcmp(language, "und")) {
481 snprintf(key2, sizeof(key2), "%s-%s", key, language);
482 av_dict_set(&c->fc->metadata, key2, str, 0);
484 if (!strcmp(key, "encoder")) {
485 int major, minor, micro;
486 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
487 c->handbrake_version = 1000000*major + 1000*minor + micro;
491 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
492 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
493 key, str, (char*)&atom.type, str_size_alloc, atom.size);
499 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
502 int i, nb_chapters, str_len, version;
506 if (c->ignore_chapters)
509 if ((atom.size -= 5) < 0)
512 version = avio_r8(pb);
515 avio_rb32(pb); // ???
516 nb_chapters = avio_r8(pb);
518 for (i = 0; i < nb_chapters; i++) {
522 start = avio_rb64(pb);
523 str_len = avio_r8(pb);
525 if ((atom.size -= 9+str_len) < 0)
528 ret = ffio_read_size(pb, str, str_len);
532 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
537 #define MIN_DATA_ENTRY_BOX_SIZE 12
538 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
541 MOVStreamContext *sc;
544 if (c->fc->nb_streams < 1)
546 st = c->fc->streams[c->fc->nb_streams-1];
549 avio_rb32(pb); // version + flags
550 entries = avio_rb32(pb);
552 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
553 entries >= UINT_MAX / sizeof(*sc->drefs))
554 return AVERROR_INVALIDDATA;
558 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
560 return AVERROR(ENOMEM);
561 sc->drefs_count = entries;
563 for (i = 0; i < entries; i++) {
564 MOVDref *dref = &sc->drefs[i];
565 uint32_t size = avio_rb32(pb);
566 int64_t next = avio_tell(pb) + size - 4;
569 return AVERROR_INVALIDDATA;
571 dref->type = avio_rl32(pb);
572 avio_rb32(pb); // version + flags
573 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
575 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
576 /* macintosh alias record */
577 uint16_t volume_len, len;
583 volume_len = avio_r8(pb);
584 volume_len = FFMIN(volume_len, 27);
585 ret = ffio_read_size(pb, dref->volume, 27);
588 dref->volume[volume_len] = 0;
589 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
594 len = FFMIN(len, 63);
595 ret = ffio_read_size(pb, dref->filename, 63);
598 dref->filename[len] = 0;
599 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
603 /* read next level up_from_alias/down_to_target */
604 dref->nlvl_from = avio_rb16(pb);
605 dref->nlvl_to = avio_rb16(pb);
606 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
607 dref->nlvl_from, dref->nlvl_to);
611 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
614 type = avio_rb16(pb);
616 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
619 if (type == 2) { // absolute path
621 dref->path = av_mallocz(len+1);
623 return AVERROR(ENOMEM);
625 ret = ffio_read_size(pb, dref->path, len);
627 av_freep(&dref->path);
630 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
632 memmove(dref->path, dref->path+volume_len, len);
635 // trim string of any ending zeros
636 for (j = len - 1; j >= 0; j--) {
637 if (dref->path[j] == 0)
642 for (j = 0; j < len; j++)
643 if (dref->path[j] == ':' || dref->path[j] == 0)
645 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
646 } else if (type == 0) { // directory name
648 dref->dir = av_malloc(len+1);
650 return AVERROR(ENOMEM);
652 ret = ffio_read_size(pb, dref->dir, len);
654 av_freep(&dref->dir);
658 for (j = 0; j < len; j++)
659 if (dref->dir[j] == ':')
661 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
666 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x08%x size %d\n",
671 avio_seek(pb, next, SEEK_SET);
676 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
680 uint32_t av_unused ctype;
685 avio_r8(pb); /* version */
686 avio_rb24(pb); /* flags */
689 ctype = avio_rl32(pb);
690 type = avio_rl32(pb); /* component subtype */
692 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
693 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
695 if (c->trak_index < 0) { // meta not inside a trak
696 if (type == MKTAG('m','d','t','a')) {
697 c->found_hdlr_mdta = 1;
702 st = c->fc->streams[c->fc->nb_streams-1];
704 if (type == MKTAG('v','i','d','e'))
705 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
706 else if (type == MKTAG('s','o','u','n'))
707 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
708 else if (type == MKTAG('m','1','a',' '))
709 st->codecpar->codec_id = AV_CODEC_ID_MP2;
710 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
711 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
713 avio_rb32(pb); /* component manufacture */
714 avio_rb32(pb); /* component flags */
715 avio_rb32(pb); /* component flags mask */
717 title_size = atom.size - 24;
718 if (title_size > 0) {
719 title_str = av_malloc(title_size + 1); /* Add null terminator */
721 return AVERROR(ENOMEM);
723 ret = ffio_read_size(pb, title_str, title_size);
725 av_freep(&title_str);
728 title_str[title_size] = 0;
730 int off = (!c->isom && title_str[0] == title_size - 1);
731 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
733 av_freep(&title_str);
739 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
744 if (fc->nb_streams < 1)
746 st = fc->streams[fc->nb_streams-1];
748 avio_rb32(pb); /* version + flags */
749 ff_mp4_read_descr(fc, pb, &tag);
750 if (tag == MP4ESDescrTag) {
751 ff_mp4_parse_es_descr(pb, NULL);
753 avio_rb16(pb); /* ID */
755 ff_mp4_read_descr(fc, pb, &tag);
756 if (tag == MP4DecConfigDescrTag)
757 ff_mp4_read_dec_config_descr(fc, st, pb);
761 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
763 return ff_mov_read_esds(c->fc, pb);
766 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
769 enum AVAudioServiceType *ast;
770 int ac3info, acmod, lfeon, bsmod;
772 if (c->fc->nb_streams < 1)
774 st = c->fc->streams[c->fc->nb_streams-1];
776 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
779 return AVERROR(ENOMEM);
781 ac3info = avio_rb24(pb);
782 bsmod = (ac3info >> 14) & 0x7;
783 acmod = (ac3info >> 11) & 0x7;
784 lfeon = (ac3info >> 10) & 0x1;
785 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
786 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
788 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
790 if (st->codecpar->channels > 1 && bsmod == 0x7)
791 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
793 #if FF_API_LAVF_AVCTX
794 FF_DISABLE_DEPRECATION_WARNINGS
795 st->codec->audio_service_type = *ast;
796 FF_ENABLE_DEPRECATION_WARNINGS
802 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
805 enum AVAudioServiceType *ast;
806 int eac3info, acmod, lfeon, bsmod;
808 if (c->fc->nb_streams < 1)
810 st = c->fc->streams[c->fc->nb_streams-1];
812 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
815 return AVERROR(ENOMEM);
817 /* No need to parse fields for additional independent substreams and its
818 * associated dependent substreams since libavcodec's E-AC-3 decoder
819 * does not support them yet. */
820 avio_rb16(pb); /* data_rate and num_ind_sub */
821 eac3info = avio_rb24(pb);
822 bsmod = (eac3info >> 12) & 0x1f;
823 acmod = (eac3info >> 9) & 0x7;
824 lfeon = (eac3info >> 8) & 0x1;
825 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
827 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
828 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
830 if (st->codecpar->channels > 1 && bsmod == 0x7)
831 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
833 #if FF_API_LAVF_AVCTX
834 FF_DISABLE_DEPRECATION_WARNINGS
835 st->codec->audio_service_type = *ast;
836 FF_ENABLE_DEPRECATION_WARNINGS
842 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
844 const uint32_t ddts_size = 20;
847 uint32_t frame_duration_code = 0;
848 uint32_t channel_layout_code = 0;
851 buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
853 return AVERROR(ENOMEM);
855 if (avio_read(pb, buf, ddts_size) < ddts_size) {
857 return AVERROR_INVALIDDATA;
860 init_get_bits(&gb, buf, 8*ddts_size);
862 if (c->fc->nb_streams < 1) {
865 st = c->fc->streams[c->fc->nb_streams-1];
867 st->codecpar->sample_rate = get_bits_long(&gb, 32);
868 skip_bits_long(&gb, 32); /* max bitrate */
869 st->codecpar->bit_rate = get_bits_long(&gb, 32);
870 st->codecpar->bits_per_coded_sample = get_bits(&gb, 8);
871 frame_duration_code = get_bits(&gb, 2);
872 skip_bits(&gb, 30); /* various fields */
873 channel_layout_code = get_bits(&gb, 16);
875 st->codecpar->frame_size =
876 (frame_duration_code == 0) ? 512 :
877 (frame_duration_code == 1) ? 1024 :
878 (frame_duration_code == 2) ? 2048 :
879 (frame_duration_code == 3) ? 4096 : 0;
881 if (channel_layout_code > 0xff) {
882 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
884 st->codecpar->channel_layout =
885 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
886 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
887 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
888 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
889 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
890 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
892 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
897 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
901 if (c->fc->nb_streams < 1)
903 st = c->fc->streams[c->fc->nb_streams-1];
908 /* skip version and flags */
911 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
916 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
921 if (c->fc->nb_streams < 1)
923 st = c->fc->streams[c->fc->nb_streams-1];
925 if ((ret = ff_get_wav_header(c->fc, pb, st->codecpar, atom.size, 0)) < 0)
926 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
931 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
933 const int num = avio_rb32(pb);
934 const int den = avio_rb32(pb);
937 if (c->fc->nb_streams < 1)
939 st = c->fc->streams[c->fc->nb_streams-1];
941 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
942 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
943 av_log(c->fc, AV_LOG_WARNING,
944 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
945 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
947 } else if (den != 0) {
948 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
954 /* this atom contains actual media data */
955 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
957 if (atom.size == 0) /* wrong one (MP4) */
960 return 0; /* now go for moov */
963 #define DRM_BLOB_SIZE 56
965 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
967 uint8_t intermediate_key[20];
968 uint8_t intermediate_iv[20];
971 uint8_t file_checksum[20];
972 uint8_t calculated_checksum[20];
976 uint8_t *activation_bytes = c->activation_bytes;
977 uint8_t *fixed_key = c->audible_fixed_key;
981 sha = av_sha_alloc();
983 return AVERROR(ENOMEM);
984 c->aes_decrypt = av_aes_alloc();
985 if (!c->aes_decrypt) {
986 ret = AVERROR(ENOMEM);
990 /* drm blob processing */
991 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
992 avio_read(pb, input, DRM_BLOB_SIZE);
993 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
994 avio_read(pb, file_checksum, 20);
996 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
997 for (i = 0; i < 20; i++)
998 av_log(sha, AV_LOG_INFO, "%02x", file_checksum[i]);
999 av_log(c->fc, AV_LOG_INFO, "\n");
1001 /* verify activation data */
1002 if (!activation_bytes) {
1003 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
1004 ret = 0; /* allow ffprobe to continue working on .aax files */
1007 if (c->activation_bytes_size != 4) {
1008 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
1009 ret = AVERROR(EINVAL);
1013 /* verify fixed key */
1014 if (c->audible_fixed_key_size != 16) {
1015 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
1016 ret = AVERROR(EINVAL);
1020 /* AAX (and AAX+) key derivation */
1021 av_sha_init(sha, 160);
1022 av_sha_update(sha, fixed_key, 16);
1023 av_sha_update(sha, activation_bytes, 4);
1024 av_sha_final(sha, intermediate_key);
1025 av_sha_init(sha, 160);
1026 av_sha_update(sha, fixed_key, 16);
1027 av_sha_update(sha, intermediate_key, 20);
1028 av_sha_update(sha, activation_bytes, 4);
1029 av_sha_final(sha, intermediate_iv);
1030 av_sha_init(sha, 160);
1031 av_sha_update(sha, intermediate_key, 16);
1032 av_sha_update(sha, intermediate_iv, 16);
1033 av_sha_final(sha, calculated_checksum);
1034 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
1035 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
1036 ret = AVERROR_INVALIDDATA;
1039 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
1040 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
1041 for (i = 0; i < 4; i++) {
1042 // file data (in output) is stored in big-endian mode
1043 if (activation_bytes[i] != output[3 - i]) { // critical error
1044 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
1045 ret = AVERROR_INVALIDDATA;
1049 memcpy(c->file_key, output + 8, 16);
1050 memcpy(input, output + 26, 16);
1051 av_sha_init(sha, 160);
1052 av_sha_update(sha, input, 16);
1053 av_sha_update(sha, c->file_key, 16);
1054 av_sha_update(sha, fixed_key, 16);
1055 av_sha_final(sha, c->file_iv);
1063 // Audible AAX (and AAX+) bytestream decryption
1064 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1067 unsigned char iv[16];
1069 memcpy(iv, c->file_iv, 16); // iv is overwritten
1070 blocks = size >> 4; // trailing bytes are not encrypted!
1071 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1072 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1077 /* read major brand, minor version and compatible brands and store them as metadata */
1078 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1081 int comp_brand_size;
1082 char* comp_brands_str;
1083 uint8_t type[5] = {0};
1084 int ret = ffio_read_size(pb, type, 4);
1088 if (strcmp(type, "qt "))
1090 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1091 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1092 minor_ver = avio_rb32(pb); /* minor version */
1093 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1095 comp_brand_size = atom.size - 8;
1096 if (comp_brand_size < 0)
1097 return AVERROR_INVALIDDATA;
1098 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1099 if (!comp_brands_str)
1100 return AVERROR(ENOMEM);
1102 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1104 av_freep(&comp_brands_str);
1107 comp_brands_str[comp_brand_size] = 0;
1108 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1109 av_freep(&comp_brands_str);
1114 /* this atom should contain all header atoms */
1115 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1119 if (c->found_moov) {
1120 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1121 avio_skip(pb, atom.size);
1125 if ((ret = mov_read_default(c, pb, atom)) < 0)
1127 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1128 /* so we don't parse the whole file if over a network */
1130 return 0; /* now go for mdat */
1133 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1135 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1136 c->has_looked_for_mfra = 1;
1139 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1141 if ((ret = mov_read_mfra(c, pb)) < 0) {
1142 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1143 "read the mfra (may be a live ismv)\n");
1146 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1147 "seekable, can not look for mfra\n");
1150 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1151 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1152 return mov_read_default(c, pb, atom);
1155 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1159 struct tm *ptm, tmbuf;
1161 if(time >= 2082844800)
1162 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1164 ptm = gmtime_r(&timet, &tmbuf);
1166 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
1167 av_dict_set(metadata, "creation_time", buffer, 0);
1171 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1174 MOVStreamContext *sc;
1176 char language[4] = {0};
1178 int64_t creation_time;
1180 if (c->fc->nb_streams < 1)
1182 st = c->fc->streams[c->fc->nb_streams-1];
1185 if (sc->time_scale) {
1186 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1187 return AVERROR_INVALIDDATA;
1190 version = avio_r8(pb);
1192 avpriv_request_sample(c->fc, "Version %d", version);
1193 return AVERROR_PATCHWELCOME;
1195 avio_rb24(pb); /* flags */
1197 creation_time = avio_rb64(pb);
1200 creation_time = avio_rb32(pb);
1201 avio_rb32(pb); /* modification time */
1203 mov_metadata_creation_time(&st->metadata, creation_time);
1205 sc->time_scale = avio_rb32(pb);
1206 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1208 lang = avio_rb16(pb); /* language */
1209 if (ff_mov_lang_to_iso639(lang, language))
1210 av_dict_set(&st->metadata, "language", language, 0);
1211 avio_rb16(pb); /* quality */
1216 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1218 int64_t creation_time;
1219 int version = avio_r8(pb); /* version */
1220 avio_rb24(pb); /* flags */
1223 creation_time = avio_rb64(pb);
1226 creation_time = avio_rb32(pb);
1227 avio_rb32(pb); /* modification time */
1229 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1230 c->time_scale = avio_rb32(pb); /* time scale */
1232 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1234 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1235 // set the AVCodecContext duration because the duration of individual tracks
1236 // may be inaccurate
1237 if (c->time_scale > 0 && !c->trex_data)
1238 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1239 avio_rb32(pb); /* preferred scale */
1241 avio_rb16(pb); /* preferred volume */
1243 avio_skip(pb, 10); /* reserved */
1245 avio_skip(pb, 36); /* display matrix */
1247 avio_rb32(pb); /* preview time */
1248 avio_rb32(pb); /* preview duration */
1249 avio_rb32(pb); /* poster time */
1250 avio_rb32(pb); /* selection time */
1251 avio_rb32(pb); /* selection duration */
1252 avio_rb32(pb); /* current time */
1253 avio_rb32(pb); /* next track ID */
1258 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1263 if (c->fc->nb_streams < 1)
1265 st = c->fc->streams[c->fc->nb_streams-1];
1267 little_endian = avio_rb16(pb) & 0xFF;
1268 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1269 if (little_endian == 1) {
1270 switch (st->codecpar->codec_id) {
1271 case AV_CODEC_ID_PCM_S24BE:
1272 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1274 case AV_CODEC_ID_PCM_S32BE:
1275 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1277 case AV_CODEC_ID_PCM_F32BE:
1278 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1280 case AV_CODEC_ID_PCM_F64BE:
1281 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1290 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1293 char color_parameter_type[5] = { 0 };
1294 uint16_t color_primaries, color_trc, color_matrix;
1297 if (c->fc->nb_streams < 1)
1299 st = c->fc->streams[c->fc->nb_streams - 1];
1301 ret = ffio_read_size(pb, color_parameter_type, 4);
1304 if (strncmp(color_parameter_type, "nclx", 4) &&
1305 strncmp(color_parameter_type, "nclc", 4)) {
1306 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1307 color_parameter_type);
1311 color_primaries = avio_rb16(pb);
1312 color_trc = avio_rb16(pb);
1313 color_matrix = avio_rb16(pb);
1315 av_log(c->fc, AV_LOG_TRACE,
1316 "%s: pri %d trc %d matrix %d",
1317 color_parameter_type, color_primaries, color_trc, color_matrix);
1319 if (!strncmp(color_parameter_type, "nclx", 4)) {
1320 uint8_t color_range = avio_r8(pb) >> 7;
1321 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1323 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1325 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1326 /* 14496-12 references JPEG XR specs (rather than the more complete
1327 * 23001-8) so some adjusting is required */
1328 if (color_primaries >= AVCOL_PRI_FILM)
1329 color_primaries = AVCOL_PRI_UNSPECIFIED;
1330 if ((color_trc >= AVCOL_TRC_LINEAR &&
1331 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1332 color_trc >= AVCOL_TRC_BT2020_10)
1333 color_trc = AVCOL_TRC_UNSPECIFIED;
1334 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1335 color_matrix = AVCOL_SPC_UNSPECIFIED;
1336 st->codecpar->color_primaries = color_primaries;
1337 st->codecpar->color_trc = color_trc;
1338 st->codecpar->color_space = color_matrix;
1339 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1340 /* color primaries, Table 4-4 */
1341 switch (color_primaries) {
1342 case 1: st->codecpar->color_primaries = AVCOL_PRI_BT709; break;
1343 case 5: st->codecpar->color_primaries = AVCOL_PRI_SMPTE170M; break;
1344 case 6: st->codecpar->color_primaries = AVCOL_PRI_SMPTE240M; break;
1346 /* color transfer, Table 4-5 */
1347 switch (color_trc) {
1348 case 1: st->codecpar->color_trc = AVCOL_TRC_BT709; break;
1349 case 7: st->codecpar->color_trc = AVCOL_TRC_SMPTE240M; break;
1351 /* color matrix, Table 4-6 */
1352 switch (color_matrix) {
1353 case 1: st->codecpar->color_space = AVCOL_SPC_BT709; break;
1354 case 6: st->codecpar->color_space = AVCOL_SPC_BT470BG; break;
1355 case 7: st->codecpar->color_space = AVCOL_SPC_SMPTE240M; break;
1358 av_log(c->fc, AV_LOG_TRACE, "\n");
1363 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1366 unsigned mov_field_order;
1367 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1369 if (c->fc->nb_streams < 1) // will happen with jp2 files
1371 st = c->fc->streams[c->fc->nb_streams-1];
1373 return AVERROR_INVALIDDATA;
1374 mov_field_order = avio_rb16(pb);
1375 if ((mov_field_order & 0xFF00) == 0x0100)
1376 decoded_field_order = AV_FIELD_PROGRESSIVE;
1377 else if ((mov_field_order & 0xFF00) == 0x0200) {
1378 switch (mov_field_order & 0xFF) {
1379 case 0x01: decoded_field_order = AV_FIELD_TT;
1381 case 0x06: decoded_field_order = AV_FIELD_BB;
1383 case 0x09: decoded_field_order = AV_FIELD_TB;
1385 case 0x0E: decoded_field_order = AV_FIELD_BT;
1389 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1390 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1392 st->codecpar->field_order = decoded_field_order;
1397 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1400 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1401 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1402 return AVERROR_INVALIDDATA;
1403 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1404 par->extradata_size = 0;
1407 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1411 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1412 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1413 AVCodecParameters *par, uint8_t *buf)
1415 int64_t result = atom.size;
1418 AV_WB32(buf , atom.size + 8);
1419 AV_WL32(buf + 4, atom.type);
1420 err = ffio_read_size(pb, buf + 8, atom.size);
1422 par->extradata_size -= atom.size;
1424 } else if (err < atom.size) {
1425 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1426 par->extradata_size -= atom.size - err;
1429 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1433 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1434 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1435 enum AVCodecID codec_id)
1438 uint64_t original_size;
1441 if (c->fc->nb_streams < 1) // will happen with jp2 files
1443 st = c->fc->streams[c->fc->nb_streams-1];
1445 if (st->codecpar->codec_id != codec_id)
1446 return 0; /* unexpected codec_id - don't mess with extradata */
1448 original_size = st->codecpar->extradata_size;
1449 err = mov_realloc_extradata(st->codecpar, atom);
1453 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1456 return 0; // Note: this is the original behavior to ignore truncation.
1459 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1460 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1462 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1465 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1467 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1470 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1472 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1475 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1477 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1480 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1482 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1484 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1488 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1490 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1492 if (!ret && c->fc->nb_streams >= 1) {
1493 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1494 if (par->extradata_size >= 40) {
1495 par->height = AV_RB16(&par->extradata[36]);
1496 par->width = AV_RB16(&par->extradata[38]);
1502 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1504 if (c->fc->nb_streams >= 1) {
1505 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1506 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1507 par->codec_id == AV_CODEC_ID_H264 &&
1511 cid = avio_rb16(pb);
1512 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1513 if (cid == 0xd4d || cid == 0xd4e)
1516 } else if (par->codec_tag == MKTAG('A', 'V', 'd', '1') &&
1520 num = avio_rb32(pb);
1521 den = avio_rb32(pb);
1522 if (num <= 0 || den <= 0)
1524 switch (avio_rb32(pb)) {
1526 if (den >= INT_MAX / 2)
1530 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1531 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1538 return mov_read_avid(c, pb, atom);
1541 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1545 uint64_t original_size;
1546 if (c->fc->nb_streams >= 1) {
1547 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1548 if (par->codec_id == AV_CODEC_ID_H264)
1550 if (atom.size == 16) {
1551 original_size = par->extradata_size;
1552 ret = mov_realloc_extradata(par, atom);
1554 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1555 if (length == atom.size) {
1556 const uint8_t range_value = par->extradata[original_size + 19];
1557 switch (range_value) {
1559 par->color_range = AVCOL_RANGE_MPEG;
1562 par->color_range = AVCOL_RANGE_JPEG;
1565 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1568 ff_dlog(c, "color_range: %d\n", par->color_range);
1570 /* For some reason the whole atom was not added to the extradata */
1571 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1574 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1577 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1584 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1586 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1589 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1594 if (c->fc->nb_streams < 1)
1596 st = c->fc->streams[c->fc->nb_streams-1];
1598 if ((uint64_t)atom.size > (1<<30))
1599 return AVERROR_INVALIDDATA;
1601 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1602 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1603 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1604 // pass all frma atom to codec, needed at least for QDMC and QDM2
1605 av_freep(&st->codecpar->extradata);
1606 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1609 } else if (atom.size > 8) { /* to read frma, esds atoms */
1610 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1612 ret = ffio_ensure_seekback(pb, 8);
1615 buffer = avio_rb64(pb);
1617 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1618 && buffer >> 32 <= atom.size
1619 && buffer >> 32 >= 8) {
1622 } else if (!st->codecpar->extradata_size) {
1623 #define ALAC_EXTRADATA_SIZE 36
1624 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1625 if (!st->codecpar->extradata)
1626 return AVERROR(ENOMEM);
1627 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1628 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1629 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1630 AV_WB64(st->codecpar->extradata + 12, buffer);
1631 avio_read(pb, st->codecpar->extradata + 20, 16);
1632 avio_skip(pb, atom.size - 24);
1636 if ((ret = mov_read_default(c, pb, atom)) < 0)
1639 avio_skip(pb, atom.size);
1644 * This function reads atom content and puts data in extradata without tag
1645 * nor size unlike mov_read_extradata.
1647 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1652 if (c->fc->nb_streams < 1)
1654 st = c->fc->streams[c->fc->nb_streams-1];
1656 if ((uint64_t)atom.size > (1<<30))
1657 return AVERROR_INVALIDDATA;
1659 if (atom.size >= 10) {
1660 // Broken files created by legacy versions of libavformat will
1661 // wrap a whole fiel atom inside of a glbl atom.
1662 unsigned size = avio_rb32(pb);
1663 unsigned type = avio_rl32(pb);
1664 avio_seek(pb, -8, SEEK_CUR);
1665 if (type == MKTAG('f','i','e','l') && size == atom.size)
1666 return mov_read_default(c, pb, atom);
1668 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1669 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1672 av_freep(&st->codecpar->extradata);
1673 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1680 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1683 uint8_t profile_level;
1686 if (c->fc->nb_streams < 1)
1688 st = c->fc->streams[c->fc->nb_streams-1];
1690 if (atom.size >= (1<<28) || atom.size < 7)
1691 return AVERROR_INVALIDDATA;
1693 profile_level = avio_r8(pb);
1694 if ((profile_level & 0xf0) != 0xc0)
1697 avio_seek(pb, 6, SEEK_CUR);
1698 av_freep(&st->codecpar->extradata);
1699 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1707 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1708 * but can have extradata appended at the end after the 40 bytes belonging
1711 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1716 if (c->fc->nb_streams < 1)
1718 if (atom.size <= 40)
1720 st = c->fc->streams[c->fc->nb_streams-1];
1722 if ((uint64_t)atom.size > (1<<30))
1723 return AVERROR_INVALIDDATA;
1726 av_freep(&st->codecpar->extradata);
1727 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1734 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1737 MOVStreamContext *sc;
1738 unsigned int i, entries;
1740 if (c->fc->nb_streams < 1)
1742 st = c->fc->streams[c->fc->nb_streams-1];
1745 avio_r8(pb); /* version */
1746 avio_rb24(pb); /* flags */
1748 entries = avio_rb32(pb);
1753 if (sc->chunk_offsets)
1754 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1755 av_free(sc->chunk_offsets);
1756 sc->chunk_count = 0;
1757 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1758 if (!sc->chunk_offsets)
1759 return AVERROR(ENOMEM);
1760 sc->chunk_count = entries;
1762 if (atom.type == MKTAG('s','t','c','o'))
1763 for (i = 0; i < entries && !pb->eof_reached; i++)
1764 sc->chunk_offsets[i] = avio_rb32(pb);
1765 else if (atom.type == MKTAG('c','o','6','4'))
1766 for (i = 0; i < entries && !pb->eof_reached; i++)
1767 sc->chunk_offsets[i] = avio_rb64(pb);
1769 return AVERROR_INVALIDDATA;
1771 sc->chunk_count = i;
1773 if (pb->eof_reached)
1780 * Compute codec id for 'lpcm' tag.
1781 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1783 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1790 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1793 static int mov_codec_id(AVStream *st, uint32_t format)
1795 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1798 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1799 (format & 0xFFFF) == 'T' + ('S' << 8)))
1800 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1802 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1803 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1804 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1805 /* skip old ASF MPEG-4 tag */
1806 format && format != MKTAG('m','p','4','s')) {
1807 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1809 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1811 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1812 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1813 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1814 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1815 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1817 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1821 st->codecpar->codec_tag = format;
1826 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1827 AVStream *st, MOVStreamContext *sc)
1829 uint8_t codec_name[32];
1833 /* The first 16 bytes of the video sample description are already
1834 * read in ff_mov_read_stsd_entries() */
1835 stsd_start = avio_tell(pb) - 16;
1837 avio_rb16(pb); /* version */
1838 avio_rb16(pb); /* revision level */
1839 avio_rb32(pb); /* vendor */
1840 avio_rb32(pb); /* temporal quality */
1841 avio_rb32(pb); /* spatial quality */
1843 st->codecpar->width = avio_rb16(pb); /* width */
1844 st->codecpar->height = avio_rb16(pb); /* height */
1846 avio_rb32(pb); /* horiz resolution */
1847 avio_rb32(pb); /* vert resolution */
1848 avio_rb32(pb); /* data size, always 0 */
1849 avio_rb16(pb); /* frames per samples */
1851 len = avio_r8(pb); /* codec name, pascal string */
1854 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1856 avio_skip(pb, 31 - len);
1859 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1861 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1862 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1863 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1864 st->codecpar->width &= ~1;
1865 st->codecpar->height &= ~1;
1867 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1868 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1869 !memcmp(codec_name, "Sorenson H263", 13))
1870 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1872 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1874 avio_seek(pb, stsd_start, SEEK_SET);
1876 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1877 st->codecpar->bits_per_coded_sample &= 0x1F;
1878 sc->has_palette = 1;
1882 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1883 AVStream *st, MOVStreamContext *sc)
1885 int bits_per_sample, flags;
1886 uint16_t version = avio_rb16(pb);
1887 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1889 avio_rb16(pb); /* revision level */
1890 avio_rb32(pb); /* vendor */
1892 st->codecpar->channels = avio_rb16(pb); /* channel count */
1893 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1894 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1896 sc->audio_cid = avio_rb16(pb);
1897 avio_rb16(pb); /* packet size = 0 */
1899 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1901 // Read QT version 1 fields. In version 0 these do not exist.
1902 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1904 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1907 sc->samples_per_frame = avio_rb32(pb);
1908 avio_rb32(pb); /* bytes per packet */
1909 sc->bytes_per_frame = avio_rb32(pb);
1910 avio_rb32(pb); /* bytes per sample */
1911 } else if (version == 2) {
1912 avio_rb32(pb); /* sizeof struct only */
1913 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1914 st->codecpar->channels = avio_rb32(pb);
1915 avio_rb32(pb); /* always 0x7F000000 */
1916 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1918 flags = avio_rb32(pb); /* lpcm format specific flag */
1919 sc->bytes_per_frame = avio_rb32(pb);
1920 sc->samples_per_frame = avio_rb32(pb);
1921 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1922 st->codecpar->codec_id =
1923 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1926 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1927 /* can't correctly handle variable sized packet as audio unit */
1928 switch (st->codecpar->codec_id) {
1929 case AV_CODEC_ID_MP2:
1930 case AV_CODEC_ID_MP3:
1931 st->need_parsing = AVSTREAM_PARSE_FULL;
1937 if (sc->format == 0) {
1938 if (st->codecpar->bits_per_coded_sample == 8)
1939 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1940 else if (st->codecpar->bits_per_coded_sample == 16)
1941 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1944 switch (st->codecpar->codec_id) {
1945 case AV_CODEC_ID_PCM_S8:
1946 case AV_CODEC_ID_PCM_U8:
1947 if (st->codecpar->bits_per_coded_sample == 16)
1948 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1950 case AV_CODEC_ID_PCM_S16LE:
1951 case AV_CODEC_ID_PCM_S16BE:
1952 if (st->codecpar->bits_per_coded_sample == 8)
1953 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1954 else if (st->codecpar->bits_per_coded_sample == 24)
1955 st->codecpar->codec_id =
1956 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1957 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1958 else if (st->codecpar->bits_per_coded_sample == 32)
1959 st->codecpar->codec_id =
1960 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1961 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1963 /* set values for old format before stsd version 1 appeared */
1964 case AV_CODEC_ID_MACE3:
1965 sc->samples_per_frame = 6;
1966 sc->bytes_per_frame = 2 * st->codecpar->channels;
1968 case AV_CODEC_ID_MACE6:
1969 sc->samples_per_frame = 6;
1970 sc->bytes_per_frame = 1 * st->codecpar->channels;
1972 case AV_CODEC_ID_ADPCM_IMA_QT:
1973 sc->samples_per_frame = 64;
1974 sc->bytes_per_frame = 34 * st->codecpar->channels;
1976 case AV_CODEC_ID_GSM:
1977 sc->samples_per_frame = 160;
1978 sc->bytes_per_frame = 33;
1984 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
1985 if (bits_per_sample) {
1986 st->codecpar->bits_per_coded_sample = bits_per_sample;
1987 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
1991 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1992 AVStream *st, MOVStreamContext *sc,
1995 // ttxt stsd contains display flags, justification, background
1996 // color, fonts, and default styles, so fake an atom to read it
1997 MOVAtom fake_atom = { .size = size };
1998 // mp4s contains a regular esds atom
1999 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
2000 mov_read_glbl(c, pb, fake_atom);
2001 st->codecpar->width = sc->width;
2002 st->codecpar->height = sc->height;
2005 static uint32_t yuv_to_rgba(uint32_t ycbcr)
2010 y = (ycbcr >> 16) & 0xFF;
2011 cr = (ycbcr >> 8) & 0xFF;
2014 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
2015 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
2016 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
2018 return (r << 16) | (g << 8) | b;
2021 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
2023 char buf[256] = {0};
2024 uint8_t *src = st->codecpar->extradata;
2027 if (st->codecpar->extradata_size != 64)
2030 if (st->codecpar->width > 0 && st->codecpar->height > 0)
2031 snprintf(buf, sizeof(buf), "size: %dx%d\n",
2032 st->codecpar->width, st->codecpar->height);
2033 av_strlcat(buf, "palette: ", sizeof(buf));
2035 for (i = 0; i < 16; i++) {
2036 uint32_t yuv = AV_RB32(src + i * 4);
2037 uint32_t rgba = yuv_to_rgba(yuv);
2039 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2042 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2045 av_freep(&st->codecpar->extradata);
2046 st->codecpar->extradata_size = 0;
2047 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2048 if (!st->codecpar->extradata)
2049 return AVERROR(ENOMEM);
2050 st->codecpar->extradata_size = strlen(buf);
2051 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2056 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2057 AVStream *st, MOVStreamContext *sc,
2062 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2063 if ((int)size != size)
2064 return AVERROR(ENOMEM);
2066 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2070 MOVStreamContext *tmcd_ctx = st->priv_data;
2072 val = AV_RB32(st->codecpar->extradata + 4);
2073 tmcd_ctx->tmcd_flags = val;
2074 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2075 st->avg_frame_rate.den = 1;
2076 #if FF_API_LAVF_AVCTX
2077 FF_DISABLE_DEPRECATION_WARNINGS
2078 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2079 FF_ENABLE_DEPRECATION_WARNINGS
2081 /* adjust for per frame dur in counter mode */
2082 if (tmcd_ctx->tmcd_flags & 0x0008) {
2083 int timescale = AV_RB32(st->codecpar->extradata + 8);
2084 int framedur = AV_RB32(st->codecpar->extradata + 12);
2085 st->avg_frame_rate.num *= timescale;
2086 st->avg_frame_rate.den *= framedur;
2087 #if FF_API_LAVF_AVCTX
2088 FF_DISABLE_DEPRECATION_WARNINGS
2089 st->codec->time_base.den *= timescale;
2090 st->codec->time_base.num *= framedur;
2091 FF_ENABLE_DEPRECATION_WARNINGS
2095 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2096 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2097 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2098 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2099 if (str_size > 0 && size >= (int)str_size + 26) {
2100 char *reel_name = av_malloc(str_size + 1);
2102 return AVERROR(ENOMEM);
2103 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2104 reel_name[str_size] = 0; /* Add null terminator */
2105 /* don't add reel_name if emtpy string */
2106 if (*reel_name == 0) {
2109 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2116 /* other codec type, just skip (rtp, mp4s ...) */
2117 avio_skip(pb, size);
2122 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2123 AVStream *st, MOVStreamContext *sc)
2125 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2126 !st->codecpar->sample_rate && sc->time_scale > 1)
2127 st->codecpar->sample_rate = sc->time_scale;
2129 /* special codec parameters handling */
2130 switch (st->codecpar->codec_id) {
2131 #if CONFIG_DV_DEMUXER
2132 case AV_CODEC_ID_DVAUDIO:
2133 c->dv_fctx = avformat_alloc_context();
2135 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2136 return AVERROR(ENOMEM);
2138 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2140 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2141 return AVERROR(ENOMEM);
2143 sc->dv_audio_container = 1;
2144 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2147 /* no ifdef since parameters are always those */
2148 case AV_CODEC_ID_QCELP:
2149 st->codecpar->channels = 1;
2150 // force sample rate for qcelp when not stored in mov
2151 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2152 st->codecpar->sample_rate = 8000;
2153 // FIXME: Why is the following needed for some files?
2154 sc->samples_per_frame = 160;
2155 if (!sc->bytes_per_frame)
2156 sc->bytes_per_frame = 35;
2158 case AV_CODEC_ID_AMR_NB:
2159 st->codecpar->channels = 1;
2160 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2161 st->codecpar->sample_rate = 8000;
2163 case AV_CODEC_ID_AMR_WB:
2164 st->codecpar->channels = 1;
2165 st->codecpar->sample_rate = 16000;
2167 case AV_CODEC_ID_MP2:
2168 case AV_CODEC_ID_MP3:
2169 /* force type after stsd for m1a hdlr */
2170 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2172 case AV_CODEC_ID_GSM:
2173 case AV_CODEC_ID_ADPCM_MS:
2174 case AV_CODEC_ID_ADPCM_IMA_WAV:
2175 case AV_CODEC_ID_ILBC:
2176 case AV_CODEC_ID_MACE3:
2177 case AV_CODEC_ID_MACE6:
2178 case AV_CODEC_ID_QDM2:
2179 st->codecpar->block_align = sc->bytes_per_frame;
2181 case AV_CODEC_ID_ALAC:
2182 if (st->codecpar->extradata_size == 36) {
2183 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2184 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2187 case AV_CODEC_ID_AC3:
2188 case AV_CODEC_ID_EAC3:
2189 case AV_CODEC_ID_MPEG1VIDEO:
2190 case AV_CODEC_ID_VC1:
2191 st->need_parsing = AVSTREAM_PARSE_FULL;
2199 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2200 int codec_tag, int format,
2203 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2206 (codec_tag != format &&
2207 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2208 : codec_tag != MKTAG('j','p','e','g')))) {
2209 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2210 * export it as a separate AVStream but this needs a few changes
2211 * in the MOV demuxer, patch welcome. */
2213 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2214 avio_skip(pb, size);
2217 if ( codec_tag == AV_RL32("avc1") ||
2218 codec_tag == AV_RL32("hvc1") ||
2219 codec_tag == AV_RL32("hev1")
2221 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
2226 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2229 MOVStreamContext *sc;
2230 int pseudo_stream_id;
2232 if (c->fc->nb_streams < 1)
2234 st = c->fc->streams[c->fc->nb_streams-1];
2237 for (pseudo_stream_id = 0;
2238 pseudo_stream_id < entries && !pb->eof_reached;
2239 pseudo_stream_id++) {
2240 //Parsing Sample description table
2242 int ret, dref_id = 1;
2243 MOVAtom a = { AV_RL32("stsd") };
2244 int64_t start_pos = avio_tell(pb);
2245 int64_t size = avio_rb32(pb); /* size */
2246 uint32_t format = avio_rl32(pb); /* data format */
2249 avio_rb32(pb); /* reserved */
2250 avio_rb16(pb); /* reserved */
2251 dref_id = avio_rb16(pb);
2252 } else if (size <= 7) {
2253 av_log(c->fc, AV_LOG_ERROR,
2254 "invalid size %"PRId64" in stsd\n", size);
2255 return AVERROR_INVALIDDATA;
2258 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2259 size - (avio_tell(pb) - start_pos)))
2262 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2263 sc->dref_id= dref_id;
2264 sc->format = format;
2266 id = mov_codec_id(st, format);
2268 av_log(c->fc, AV_LOG_TRACE,
2269 "size=%"PRId64" 4CC= %c%c%c%c/0x%08x codec_type=%d\n", size,
2270 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
2271 (format >> 24) & 0xff, format, st->codecpar->codec_type);
2273 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2274 st->codecpar->codec_id = id;
2275 mov_parse_stsd_video(c, pb, st, sc);
2276 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2277 st->codecpar->codec_id = id;
2278 mov_parse_stsd_audio(c, pb, st, sc);
2279 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2280 st->codecpar->codec_id = id;
2281 mov_parse_stsd_subtitle(c, pb, st, sc,
2282 size - (avio_tell(pb) - start_pos));
2284 ret = mov_parse_stsd_data(c, pb, st, sc,
2285 size - (avio_tell(pb) - start_pos));
2289 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2290 a.size = size - (avio_tell(pb) - start_pos);
2292 if ((ret = mov_read_default(c, pb, a)) < 0)
2294 } else if (a.size > 0)
2295 avio_skip(pb, a.size);
2298 if (pb->eof_reached)
2301 return mov_finalize_stsd_codec(c, pb, st, sc);
2304 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2308 avio_r8(pb); /* version */
2309 avio_rb24(pb); /* flags */
2310 entries = avio_rb32(pb);
2312 return ff_mov_read_stsd_entries(c, pb, entries);
2315 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2318 MOVStreamContext *sc;
2319 unsigned int i, entries;
2321 if (c->fc->nb_streams < 1)
2323 st = c->fc->streams[c->fc->nb_streams-1];
2326 avio_r8(pb); /* version */
2327 avio_rb24(pb); /* flags */
2329 entries = avio_rb32(pb);
2331 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2336 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2337 av_free(sc->stsc_data);
2339 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2341 return AVERROR(ENOMEM);
2343 for (i = 0; i < entries && !pb->eof_reached; i++) {
2344 sc->stsc_data[i].first = avio_rb32(pb);
2345 sc->stsc_data[i].count = avio_rb32(pb);
2346 sc->stsc_data[i].id = avio_rb32(pb);
2351 if (pb->eof_reached)
2357 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2360 MOVStreamContext *sc;
2361 unsigned i, entries;
2363 if (c->fc->nb_streams < 1)
2365 st = c->fc->streams[c->fc->nb_streams-1];
2368 avio_rb32(pb); // version + flags
2370 entries = avio_rb32(pb);
2372 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2373 av_free(sc->stps_data);
2375 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2377 return AVERROR(ENOMEM);
2379 for (i = 0; i < entries && !pb->eof_reached; i++) {
2380 sc->stps_data[i] = avio_rb32(pb);
2381 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2386 if (pb->eof_reached)
2392 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2395 MOVStreamContext *sc;
2396 unsigned int i, entries;
2398 if (c->fc->nb_streams < 1)
2400 st = c->fc->streams[c->fc->nb_streams-1];
2403 avio_r8(pb); /* version */
2404 avio_rb24(pb); /* flags */
2406 entries = avio_rb32(pb);
2408 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2412 sc->keyframe_absent = 1;
2413 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2414 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2418 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2419 if (entries >= UINT_MAX / sizeof(int))
2420 return AVERROR_INVALIDDATA;
2421 av_freep(&sc->keyframes);
2422 sc->keyframe_count = 0;
2423 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2425 return AVERROR(ENOMEM);
2427 for (i = 0; i < entries && !pb->eof_reached; i++) {
2428 sc->keyframes[i] = avio_rb32(pb);
2429 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2432 sc->keyframe_count = i;
2434 if (pb->eof_reached)
2440 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2443 MOVStreamContext *sc;
2444 unsigned int i, entries, sample_size, field_size, num_bytes;
2449 if (c->fc->nb_streams < 1)
2451 st = c->fc->streams[c->fc->nb_streams-1];
2454 avio_r8(pb); /* version */
2455 avio_rb24(pb); /* flags */
2457 if (atom.type == MKTAG('s','t','s','z')) {
2458 sample_size = avio_rb32(pb);
2459 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2460 sc->sample_size = sample_size;
2461 sc->stsz_sample_size = sample_size;
2465 avio_rb24(pb); /* reserved */
2466 field_size = avio_r8(pb);
2468 entries = avio_rb32(pb);
2470 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2472 sc->sample_count = entries;
2476 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2477 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2478 return AVERROR_INVALIDDATA;
2483 if (entries >= (UINT_MAX - 4) / field_size)
2484 return AVERROR_INVALIDDATA;
2485 if (sc->sample_sizes)
2486 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2487 av_free(sc->sample_sizes);
2488 sc->sample_count = 0;
2489 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2490 if (!sc->sample_sizes)
2491 return AVERROR(ENOMEM);
2493 num_bytes = (entries*field_size+4)>>3;
2495 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2497 av_freep(&sc->sample_sizes);
2498 return AVERROR(ENOMEM);
2501 ret = ffio_read_size(pb, buf, num_bytes);
2503 av_freep(&sc->sample_sizes);
2508 init_get_bits(&gb, buf, 8*num_bytes);
2510 for (i = 0; i < entries && !pb->eof_reached; i++) {
2511 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2512 sc->data_size += sc->sample_sizes[i];
2515 sc->sample_count = i;
2519 if (pb->eof_reached)
2525 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2528 MOVStreamContext *sc;
2529 unsigned int i, entries;
2531 int64_t total_sample_count=0;
2533 if (c->fc->nb_streams < 1)
2535 st = c->fc->streams[c->fc->nb_streams-1];
2538 avio_r8(pb); /* version */
2539 avio_rb24(pb); /* flags */
2540 entries = avio_rb32(pb);
2542 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2543 c->fc->nb_streams-1, entries);
2546 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2547 av_free(sc->stts_data);
2549 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2551 return AVERROR(ENOMEM);
2553 for (i = 0; i < entries && !pb->eof_reached; i++) {
2554 int sample_duration;
2557 sample_count=avio_rb32(pb);
2558 sample_duration = avio_rb32(pb);
2560 if (sample_count < 0) {
2561 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2562 return AVERROR_INVALIDDATA;
2564 sc->stts_data[i].count= sample_count;
2565 sc->stts_data[i].duration= sample_duration;
2567 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2568 sample_count, sample_duration);
2572 && sample_count == 1
2573 && total_sample_count > 100
2574 && sample_duration/10 > duration / total_sample_count)
2575 sample_duration = duration / total_sample_count;
2576 duration+=(int64_t)sample_duration*sample_count;
2577 total_sample_count+=sample_count;
2582 sc->duration_for_fps += duration;
2583 sc->nb_frames_for_fps += total_sample_count;
2585 if (pb->eof_reached)
2588 st->nb_frames= total_sample_count;
2590 st->duration= duration;
2591 sc->track_end = duration;
2595 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2598 if (duration == INT_MIN) {
2599 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2602 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2606 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2609 MOVStreamContext *sc;
2610 unsigned int i, entries, ctts_count = 0;
2612 if (c->fc->nb_streams < 1)
2614 st = c->fc->streams[c->fc->nb_streams-1];
2617 avio_r8(pb); /* version */
2618 avio_rb24(pb); /* flags */
2619 entries = avio_rb32(pb);
2621 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2625 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2626 return AVERROR_INVALIDDATA;
2627 av_freep(&sc->ctts_data);
2628 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2630 return AVERROR(ENOMEM);
2632 for (i = 0; i < entries && !pb->eof_reached; i++) {
2633 int count =avio_rb32(pb);
2634 int duration =avio_rb32(pb);
2637 av_log(c->fc, AV_LOG_TRACE,
2638 "ignoring CTTS entry with count=%d duration=%d\n",
2643 sc->ctts_data[ctts_count].count = count;
2644 sc->ctts_data[ctts_count].duration = duration;
2647 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2650 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2651 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2652 av_freep(&sc->ctts_data);
2658 mov_update_dts_shift(sc, duration);
2661 sc->ctts_count = ctts_count;
2663 if (pb->eof_reached)
2666 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2671 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2674 MOVStreamContext *sc;
2675 unsigned int i, entries;
2677 uint32_t grouping_type;
2679 if (c->fc->nb_streams < 1)
2681 st = c->fc->streams[c->fc->nb_streams-1];
2684 version = avio_r8(pb); /* version */
2685 avio_rb24(pb); /* flags */
2686 grouping_type = avio_rl32(pb);
2687 if (grouping_type != MKTAG( 'r','a','p',' '))
2688 return 0; /* only support 'rap ' grouping */
2690 avio_rb32(pb); /* grouping_type_parameter */
2692 entries = avio_rb32(pb);
2696 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2697 av_free(sc->rap_group);
2698 sc->rap_group_count = 0;
2699 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2701 return AVERROR(ENOMEM);
2703 for (i = 0; i < entries && !pb->eof_reached; i++) {
2704 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2705 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2708 sc->rap_group_count = i;
2710 return pb->eof_reached ? AVERROR_EOF : 0;
2713 static void mov_build_index(MOVContext *mov, AVStream *st)
2715 MOVStreamContext *sc = st->priv_data;
2716 int64_t current_offset;
2717 int64_t current_dts = 0;
2718 unsigned int stts_index = 0;
2719 unsigned int stsc_index = 0;
2720 unsigned int stss_index = 0;
2721 unsigned int stps_index = 0;
2723 uint64_t stream_size = 0;
2725 if (sc->elst_count) {
2726 int i, edit_start_index = 0, unsupported = 0;
2727 int64_t empty_duration = 0; // empty duration of the first edit list entry
2728 int64_t start_time = 0; // start time of the media
2730 for (i = 0; i < sc->elst_count; i++) {
2731 const MOVElst *e = &sc->elst_data[i];
2732 if (i == 0 && e->time == -1) {
2733 /* if empty, the first entry is the start time of the stream
2734 * relative to the presentation itself */
2735 empty_duration = e->duration;
2736 edit_start_index = 1;
2737 } else if (i == edit_start_index && e->time >= 0) {
2738 start_time = e->time;
2743 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2744 "a/v desync might occur, patch welcome\n");
2746 /* adjust first dts according to edit list */
2747 if ((empty_duration || start_time) && mov->time_scale > 0) {
2749 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2750 sc->time_offset = start_time - empty_duration;
2751 current_dts = -sc->time_offset;
2752 if (sc->ctts_count>0 && sc->stts_count>0 &&
2753 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2754 /* more than 16 frames delay, dts are likely wrong
2755 this happens with files created by iMovie */
2757 st->codecpar->video_delay = 1;
2761 if (!unsupported && st->codecpar->codec_id == AV_CODEC_ID_AAC && start_time > 0)
2762 sc->start_pad = start_time;
2765 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2766 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2767 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2768 unsigned int current_sample = 0;
2769 unsigned int stts_sample = 0;
2770 unsigned int sample_size;
2771 unsigned int distance = 0;
2772 unsigned int rap_group_index = 0;
2773 unsigned int rap_group_sample = 0;
2774 int64_t last_dts = 0;
2775 int64_t dts_correction = 0;
2776 int rap_group_present = sc->rap_group_count && sc->rap_group;
2777 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2779 current_dts -= sc->dts_shift;
2780 last_dts = current_dts;
2782 if (!sc->sample_count || st->nb_index_entries)
2784 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2786 if (av_reallocp_array(&st->index_entries,
2787 st->nb_index_entries + sc->sample_count,
2788 sizeof(*st->index_entries)) < 0) {
2789 st->nb_index_entries = 0;
2792 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2794 for (i = 0; i < sc->chunk_count; i++) {
2795 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2796 current_offset = sc->chunk_offsets[i];
2797 while (stsc_index + 1 < sc->stsc_count &&
2798 i + 1 == sc->stsc_data[stsc_index + 1].first)
2801 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2802 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2803 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2804 sc->stsz_sample_size = sc->sample_size;
2806 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2807 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2808 sc->stsz_sample_size = sc->sample_size;
2811 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2813 if (current_sample >= sc->sample_count) {
2814 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2818 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2820 if (stss_index + 1 < sc->keyframe_count)
2822 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2824 if (stps_index + 1 < sc->stps_count)
2827 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2828 if (sc->rap_group[rap_group_index].index > 0)
2830 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2831 rap_group_sample = 0;
2835 if (sc->keyframe_absent
2837 && !rap_group_present
2838 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2842 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2843 if (sc->pseudo_stream_id == -1 ||
2844 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2845 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2846 e->pos = current_offset;
2847 e->timestamp = current_dts;
2848 e->size = sample_size;
2849 e->min_distance = distance;
2850 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2851 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2852 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2853 current_offset, current_dts, sample_size, distance, keyframe);
2854 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2855 ff_rfps_add_frame(mov->fc, st, current_dts);
2858 current_offset += sample_size;
2859 stream_size += sample_size;
2861 /* A negative sample duration is invalid based on the spec,
2862 * but some samples need it to correct the DTS. */
2863 if (sc->stts_data[stts_index].duration < 0) {
2864 av_log(mov->fc, AV_LOG_WARNING,
2865 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2866 sc->stts_data[stts_index].duration, stts_index,
2868 dts_correction += sc->stts_data[stts_index].duration - 1;
2869 sc->stts_data[stts_index].duration = 1;
2871 current_dts += sc->stts_data[stts_index].duration;
2872 if (!dts_correction || current_dts + dts_correction > last_dts) {
2873 current_dts += dts_correction;
2876 /* Avoid creating non-monotonous DTS */
2877 dts_correction += current_dts - last_dts - 1;
2878 current_dts = last_dts + 1;
2880 last_dts = current_dts;
2884 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2890 if (st->duration > 0)
2891 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
2893 unsigned chunk_samples, total = 0;
2895 // compute total chunk count
2896 for (i = 0; i < sc->stsc_count; i++) {
2897 unsigned count, chunk_count;
2899 chunk_samples = sc->stsc_data[i].count;
2900 if (i != sc->stsc_count - 1 &&
2901 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2902 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2906 if (sc->samples_per_frame >= 160) { // gsm
2907 count = chunk_samples / sc->samples_per_frame;
2908 } else if (sc->samples_per_frame > 1) {
2909 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2910 count = (chunk_samples+samples-1) / samples;
2912 count = (chunk_samples+1023) / 1024;
2915 if (i < sc->stsc_count - 1)
2916 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2918 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2919 total += chunk_count * count;
2922 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2923 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2925 if (av_reallocp_array(&st->index_entries,
2926 st->nb_index_entries + total,
2927 sizeof(*st->index_entries)) < 0) {
2928 st->nb_index_entries = 0;
2931 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2934 for (i = 0; i < sc->chunk_count; i++) {
2935 current_offset = sc->chunk_offsets[i];
2936 if (stsc_index + 1 < sc->stsc_count &&
2937 i + 1 == sc->stsc_data[stsc_index + 1].first)
2939 chunk_samples = sc->stsc_data[stsc_index].count;
2941 while (chunk_samples > 0) {
2943 unsigned size, samples;
2945 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
2946 avpriv_request_sample(mov->fc,
2947 "Zero bytes per frame, but %d samples per frame",
2948 sc->samples_per_frame);
2952 if (sc->samples_per_frame >= 160) { // gsm
2953 samples = sc->samples_per_frame;
2954 size = sc->bytes_per_frame;
2956 if (sc->samples_per_frame > 1) {
2957 samples = FFMIN((1024 / sc->samples_per_frame)*
2958 sc->samples_per_frame, chunk_samples);
2959 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2961 samples = FFMIN(1024, chunk_samples);
2962 size = samples * sc->sample_size;
2966 if (st->nb_index_entries >= total) {
2967 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2970 e = &st->index_entries[st->nb_index_entries++];
2971 e->pos = current_offset;
2972 e->timestamp = current_dts;
2974 e->min_distance = 0;
2975 e->flags = AVINDEX_KEYFRAME;
2976 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2977 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2980 current_offset += size;
2981 current_dts += samples;
2982 chunk_samples -= samples;
2988 static int test_same_origin(const char *src, const char *ref) {
2998 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
2999 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
3001 if (strlen(src) == 0) {
3003 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
3004 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
3005 strlen(src_host) + 1 >= sizeof(src_host) ||
3006 strlen(ref_host) + 1 >= sizeof(ref_host)) {
3008 } else if (strcmp(src_proto, ref_proto) ||
3009 strcmp(src_auth, ref_auth) ||
3010 strcmp(src_host, ref_host) ||
3011 src_port != ref_port) {
3017 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref)
3019 /* try relative path, we do not try the absolute because it can leak information about our
3020 system to an attacker */
3021 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
3022 char filename[1025];
3023 const char *src_path;
3026 /* find a source dir */
3027 src_path = strrchr(src, '/');
3033 /* find a next level down to target */
3034 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
3035 if (ref->path[l] == '/') {
3036 if (i == ref->nlvl_to - 1)
3042 /* compose filename if next level down to target was found */
3043 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
3044 memcpy(filename, src, src_path - src);
3045 filename[src_path - src] = 0;
3047 for (i = 1; i < ref->nlvl_from; i++)
3048 av_strlcat(filename, "../", sizeof(filename));
3050 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
3051 if (!c->use_absolute_path) {
3052 int same_origin = test_same_origin(src, filename);
3055 av_log(c->fc, AV_LOG_ERROR,
3056 "Reference with mismatching origin, %s not tried for security reasons, "
3057 "set demuxer option use_absolute_path to allow it anyway\n",
3059 return AVERROR(ENOENT);
3062 if(strstr(ref->path + l + 1, "..") ||
3063 strstr(ref->path + l + 1, ":") ||
3064 (ref->nlvl_from > 1 && same_origin < 0) ||
3065 (filename[0] == '/' && src_path == src))
3066 return AVERROR(ENOENT);
3069 if (strlen(filename) + 1 == sizeof(filename))
3070 return AVERROR(ENOENT);
3071 if (!c->fc->io_open(c->fc, pb, filename, AVIO_FLAG_READ, NULL))
3074 } else if (c->use_absolute_path) {
3075 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
3076 "this is a possible security issue\n");
3077 if (!c->fc->io_open(c->fc, pb, ref->path, AVIO_FLAG_READ, NULL))
3080 av_log(c->fc, AV_LOG_ERROR,
3081 "Absolute path %s not tried for security reasons, "
3082 "set demuxer option use_absolute_path to allow absolute paths\n",
3086 return AVERROR(ENOENT);
3089 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3091 if (sc->time_scale <= 0) {
3092 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3093 sc->time_scale = c->time_scale;
3094 if (sc->time_scale <= 0)
3099 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3102 MOVStreamContext *sc;
3105 st = avformat_new_stream(c->fc, NULL);
3106 if (!st) return AVERROR(ENOMEM);
3107 st->id = c->fc->nb_streams;
3108 sc = av_mallocz(sizeof(MOVStreamContext));
3109 if (!sc) return AVERROR(ENOMEM);
3112 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
3113 sc->ffindex = st->index;
3114 c->trak_index = st->index;
3116 if ((ret = mov_read_default(c, pb, atom)) < 0)
3122 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3123 (!sc->sample_size && !sc->sample_count))) {
3124 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3129 fix_timescale(c, sc);
3131 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3133 mov_build_index(c, st);
3135 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3136 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3137 if (c->enable_drefs) {
3138 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref) < 0)
3139 av_log(c->fc, AV_LOG_ERROR,
3140 "stream %d, error opening alias: path='%s', dir='%s', "
3141 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3142 st->index, dref->path, dref->dir, dref->filename,
3143 dref->volume, dref->nlvl_from, dref->nlvl_to);
3145 av_log(c->fc, AV_LOG_WARNING,
3146 "Skipped opening external track: "
3147 "stream %d, alias: path='%s', dir='%s', "
3148 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3149 "Set enable_drefs to allow this.\n",
3150 st->index, dref->path, dref->dir, dref->filename,
3151 dref->volume, dref->nlvl_from, dref->nlvl_to);
3155 sc->pb_is_copied = 1;
3158 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3159 if (!st->sample_aspect_ratio.num && st->codecpar->width && st->codecpar->height &&
3160 sc->height && sc->width &&
3161 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
3162 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
3163 ((double)st->codecpar->width * sc->height), INT_MAX);
3166 #if FF_API_R_FRAME_RATE
3167 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3168 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3169 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3173 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3174 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
3175 TAG_IS_AVCI(st->codecpar->codec_tag)) {
3176 ret = ff_generate_avci_extradata(st);
3181 switch (st->codecpar->codec_id) {
3182 #if CONFIG_H261_DECODER
3183 case AV_CODEC_ID_H261:
3185 #if CONFIG_H263_DECODER
3186 case AV_CODEC_ID_H263:
3188 #if CONFIG_MPEG4_DECODER
3189 case AV_CODEC_ID_MPEG4:
3191 st->codecpar->width = 0; /* let decoder init width/height */
3192 st->codecpar->height= 0;
3196 // If the duration of the mp3 packets is not constant, then they could need a parser
3197 if (st->codecpar->codec_id == AV_CODEC_ID_MP3
3198 && sc->stts_count > 3
3199 && sc->stts_count*10 > st->nb_frames
3200 && sc->time_scale == st->codecpar->sample_rate) {
3201 st->need_parsing = AVSTREAM_PARSE_FULL;
3203 /* Do not need those anymore. */
3204 av_freep(&sc->chunk_offsets);
3205 av_freep(&sc->stsc_data);
3206 av_freep(&sc->sample_sizes);
3207 av_freep(&sc->keyframes);
3208 av_freep(&sc->stts_data);
3209 av_freep(&sc->stps_data);
3210 av_freep(&sc->elst_data);
3211 av_freep(&sc->rap_group);
3216 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3219 c->itunes_metadata = 1;
3220 ret = mov_read_default(c, pb, atom);
3221 c->itunes_metadata = 0;
3225 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3234 count = avio_rb32(pb);
3235 if (count > UINT_MAX / sizeof(*c->meta_keys)) {
3236 av_log(c->fc, AV_LOG_ERROR,
3237 "The 'keys' atom with the invalid key count: %d\n", count);
3238 return AVERROR_INVALIDDATA;
3241 c->meta_keys_count = count + 1;
3242 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3244 return AVERROR(ENOMEM);
3246 for (i = 1; i <= count; ++i) {
3247 uint32_t key_size = avio_rb32(pb);
3248 uint32_t type = avio_rl32(pb);
3250 av_log(c->fc, AV_LOG_ERROR,
3251 "The key# %d in meta has invalid size: %d\n", i, key_size);
3252 return AVERROR_INVALIDDATA;
3255 if (type != MKTAG('m','d','t','a')) {
3256 avio_skip(pb, key_size);
3258 c->meta_keys[i] = av_mallocz(key_size + 1);
3259 if (!c->meta_keys[i])
3260 return AVERROR(ENOMEM);
3261 avio_read(pb, c->meta_keys[i], key_size);
3267 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3269 int64_t end = avio_tell(pb) + atom.size;
3270 uint8_t *key = NULL, *val = NULL, *mean = NULL;
3274 MOVStreamContext *sc;
3276 if (c->fc->nb_streams < 1)
3278 st = c->fc->streams[c->fc->nb_streams-1];
3281 for (i = 0; i < 3; i++) {
3285 if (end - avio_tell(pb) <= 12)
3288 len = avio_rb32(pb);
3289 tag = avio_rl32(pb);
3290 avio_skip(pb, 4); // flags
3292 if (len < 12 || len - 12 > end - avio_tell(pb))
3296 if (tag == MKTAG('m', 'e', 'a', 'n'))
3298 else if (tag == MKTAG('n', 'a', 'm', 'e'))
3300 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3307 *p = av_malloc(len + 1);
3310 ret = ffio_read_size(pb, *p, len);
3318 if (mean && key && val) {
3319 if (strcmp(key, "iTunSMPB") == 0) {
3320 int priming, remainder, samples;
3321 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3322 if(priming>0 && priming<16384)
3323 sc->start_pad = priming;
3326 if (strcmp(key, "cdec") != 0) {
3327 av_dict_set(&c->fc->metadata, key, val,
3328 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3332 av_log(c->fc, AV_LOG_VERBOSE,
3333 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3336 avio_seek(pb, end, SEEK_SET);
3343 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3345 while (atom.size > 8) {
3346 uint32_t tag = avio_rl32(pb);
3348 if (tag == MKTAG('h','d','l','r')) {
3349 avio_seek(pb, -8, SEEK_CUR);
3351 return mov_read_default(c, pb, atom);
3357 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3362 int display_matrix[3][3];
3364 MOVStreamContext *sc;
3368 if (c->fc->nb_streams < 1)
3370 st = c->fc->streams[c->fc->nb_streams-1];
3373 version = avio_r8(pb);
3374 flags = avio_rb24(pb);
3375 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3381 avio_rb32(pb); /* creation time */
3382 avio_rb32(pb); /* modification time */
3384 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3385 avio_rb32(pb); /* reserved */
3387 /* highlevel (considering edits) duration in movie timebase */
3388 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3389 avio_rb32(pb); /* reserved */
3390 avio_rb32(pb); /* reserved */
3392 avio_rb16(pb); /* layer */
3393 avio_rb16(pb); /* alternate group */
3394 avio_rb16(pb); /* volume */
3395 avio_rb16(pb); /* reserved */
3397 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3398 // they're kept in fixed point format through all calculations
3399 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3400 // side data, but the scale factor is not needed to calculate aspect ratio
3401 for (i = 0; i < 3; i++) {
3402 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3403 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3404 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
3407 width = avio_rb32(pb); // 16.16 fixed point track width
3408 height = avio_rb32(pb); // 16.16 fixed point track height
3409 sc->width = width >> 16;
3410 sc->height = height >> 16;
3412 // save the matrix and add rotate metadata when it is not the default
3414 if (display_matrix[0][0] != (1 << 16) ||
3415 display_matrix[1][1] != (1 << 16) ||
3416 display_matrix[2][2] != (1 << 30) ||
3417 display_matrix[0][1] || display_matrix[0][2] ||
3418 display_matrix[1][0] || display_matrix[1][2] ||
3419 display_matrix[2][0] || display_matrix[2][1]) {
3423 av_freep(&sc->display_matrix);
3424 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
3425 if (!sc->display_matrix)
3426 return AVERROR(ENOMEM);
3428 for (i = 0; i < 3; i++)
3429 for (j = 0; j < 3; j++)
3430 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
3432 rotate = av_display_rotation_get(sc->display_matrix);
3433 if (!isnan(rotate)) {
3434 char rotate_buf[64];
3436 if (rotate < 0) // for backward compatibility
3438 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
3439 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
3443 // transform the display width/height according to the matrix
3444 // to keep the same scale, use [width height 1<<16]
3445 if (width && height && sc->display_matrix) {
3446 double disp_transform[2];
3448 for (i = 0; i < 2; i++)
3449 disp_transform[i] = hypot(display_matrix[i][0], display_matrix[i][1]);
3451 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
3452 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
3453 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
3454 st->sample_aspect_ratio = av_d2q(
3455 disp_transform[0] / disp_transform[1],
3461 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3463 MOVFragment *frag = &c->fragment;
3464 MOVTrackExt *trex = NULL;
3465 MOVFragmentIndex* index = NULL;
3466 int flags, track_id, i, found = 0;
3468 avio_r8(pb); /* version */
3469 flags = avio_rb24(pb);
3471 track_id = avio_rb32(pb);
3473 return AVERROR_INVALIDDATA;
3474 frag->track_id = track_id;
3475 for (i = 0; i < c->trex_count; i++)
3476 if (c->trex_data[i].track_id == frag->track_id) {
3477 trex = &c->trex_data[i];
3481 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3482 return AVERROR_INVALIDDATA;
3485 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3486 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3487 frag->moof_offset : frag->implicit_offset;
3488 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3490 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3491 avio_rb32(pb) : trex->duration;
3492 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3493 avio_rb32(pb) : trex->size;
3494 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3495 avio_rb32(pb) : trex->flags;
3496 frag->time = AV_NOPTS_VALUE;
3497 for (i = 0; i < c->fragment_index_count; i++) {
3499 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3500 if (candidate->track_id == frag->track_id) {
3501 av_log(c->fc, AV_LOG_DEBUG,
3502 "found fragment index for track %u\n", frag->track_id);
3504 for (j = index->current_item; j < index->item_count; j++) {
3505 if (frag->implicit_offset == index->items[j].moof_offset) {
3506 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3507 "for track %u and moof_offset %"PRId64"\n",
3508 frag->track_id, index->items[j].moof_offset);
3509 frag->time = index->items[j].time;
3510 index->current_item = j + 1;
3519 if (index && !found) {
3520 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
3521 "it doesn't have an (in-order) entry for moof_offset "
3522 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3524 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3528 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3530 c->chapter_track = avio_rb32(pb);
3534 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3539 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3540 return AVERROR_INVALIDDATA;
3541 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3542 sizeof(*c->trex_data))) < 0) {
3547 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3549 trex = &c->trex_data[c->trex_count++];
3550 avio_r8(pb); /* version */
3551 avio_rb24(pb); /* flags */
3552 trex->track_id = avio_rb32(pb);
3553 trex->stsd_id = avio_rb32(pb);
3554 trex->duration = avio_rb32(pb);
3555 trex->size = avio_rb32(pb);
3556 trex->flags = avio_rb32(pb);
3560 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3562 MOVFragment *frag = &c->fragment;
3563 AVStream *st = NULL;
3564 MOVStreamContext *sc;
3567 for (i = 0; i < c->fc->nb_streams; i++) {
3568 if (c->fc->streams[i]->id == frag->track_id) {
3569 st = c->fc->streams[i];
3574 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3575 return AVERROR_INVALIDDATA;
3578 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3580 version = avio_r8(pb);
3581 avio_rb24(pb); /* flags */
3583 sc->track_end = avio_rb64(pb);
3585 sc->track_end = avio_rb32(pb);
3590 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3592 MOVFragment *frag = &c->fragment;
3593 AVStream *st = NULL;
3594 MOVStreamContext *sc;
3598 int data_offset = 0;
3599 unsigned entries, first_sample_flags = frag->flags;
3600 int flags, distance, i, err;
3602 for (i = 0; i < c->fc->nb_streams; i++) {
3603 if (c->fc->streams[i]->id == frag->track_id) {
3604 st = c->fc->streams[i];
3609 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3610 return AVERROR_INVALIDDATA;
3613 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3615 avio_r8(pb); /* version */
3616 flags = avio_rb24(pb);
3617 entries = avio_rb32(pb);
3618 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3620 /* Always assume the presence of composition time offsets.
3621 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3622 * 1) in the initial movie, there are no samples.
3623 * 2) in the first movie fragment, there is only one sample without composition time offset.
3624 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3625 if (!sc->ctts_count && sc->sample_count)
3627 /* Complement ctts table if moov atom doesn't have ctts atom. */
3628 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3630 return AVERROR(ENOMEM);
3631 sc->ctts_data = ctts_data;
3632 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3633 sc->ctts_data[sc->ctts_count].duration = 0;
3636 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3637 return AVERROR_INVALIDDATA;
3638 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3639 sizeof(*sc->ctts_data))) < 0) {
3643 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3644 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3645 dts = sc->track_end - sc->time_offset;
3646 offset = frag->base_data_offset + data_offset;
3648 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3649 for (i = 0; i < entries && !pb->eof_reached; i++) {
3650 unsigned sample_size = frag->size;
3651 int sample_flags = i ? frag->flags : first_sample_flags;
3652 unsigned sample_duration = frag->duration;
3655 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3656 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3657 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3658 sc->ctts_data[sc->ctts_count].count = 1;
3659 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3661 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3662 if (frag->time != AV_NOPTS_VALUE) {
3663 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3664 int64_t pts = frag->time;
3665 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3666 " sc->dts_shift %d ctts.duration %d"
3667 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3668 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3669 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3670 dts = pts - sc->dts_shift;
3671 if (flags & MOV_TRUN_SAMPLE_CTS) {
3672 dts -= sc->ctts_data[sc->ctts_count].duration;
3674 dts -= sc->time_offset;
3676 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3678 dts = frag->time - sc->time_offset;
3679 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3680 ", using it for dts\n", dts);
3682 frag->time = AV_NOPTS_VALUE;
3685 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
3689 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3690 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3693 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3694 keyframe ? AVINDEX_KEYFRAME : 0);
3696 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3698 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3699 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3700 offset, dts, sample_size, distance, keyframe);
3702 dts += sample_duration;
3703 offset += sample_size;
3704 sc->data_size += sample_size;
3705 sc->duration_for_fps += sample_duration;
3706 sc->nb_frames_for_fps ++;
3709 if (pb->eof_reached)
3712 frag->implicit_offset = offset;
3714 sc->track_end = dts + sc->time_offset;
3715 if (st->duration < sc->track_end)
3716 st->duration = sc->track_end;
3721 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3723 int64_t offset = avio_tell(pb) + atom.size, pts;
3725 unsigned i, track_id;
3726 AVStream *st = NULL;
3727 MOVStreamContext *sc;
3728 MOVFragmentIndex *index = NULL;
3729 MOVFragmentIndex **tmp;
3730 AVRational timescale;
3732 version = avio_r8(pb);
3734 avpriv_request_sample(c->fc, "sidx version %u", version);
3738 avio_rb24(pb); // flags
3740 track_id = avio_rb32(pb); // Reference ID
3741 for (i = 0; i < c->fc->nb_streams; i++) {
3742 if (c->fc->streams[i]->id == track_id) {
3743 st = c->fc->streams[i];
3748 av_log(c->fc, AV_LOG_WARNING, "could not find corresponding track id %d\n", track_id);
3754 timescale = av_make_q(1, avio_rb32(pb));
3757 pts = avio_rb32(pb);
3758 offset += avio_rb32(pb);
3760 pts = avio_rb64(pb);
3761 offset += avio_rb64(pb);
3764 avio_rb16(pb); // reserved
3766 index = av_mallocz(sizeof(MOVFragmentIndex));
3768 return AVERROR(ENOMEM);
3770 index->track_id = track_id;
3772 index->item_count = avio_rb16(pb);
3773 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
3775 if (!index->items) {
3777 return AVERROR(ENOMEM);
3780 for (i = 0; i < index->item_count; i++) {
3781 uint32_t size = avio_rb32(pb);
3782 uint32_t duration = avio_rb32(pb);
3783 if (size & 0x80000000) {
3784 avpriv_request_sample(c->fc, "sidx reference_type 1");
3785 av_freep(&index->items);
3787 return AVERROR_PATCHWELCOME;
3789 avio_rb32(pb); // sap_flags
3790 index->items[i].moof_offset = offset;
3791 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
3796 st->duration = sc->track_end = pts;
3798 tmp = av_realloc_array(c->fragment_index_data,
3799 c->fragment_index_count + 1,
3800 sizeof(MOVFragmentIndex*));
3802 av_freep(&index->items);
3804 return AVERROR(ENOMEM);
3807 c->fragment_index_data = tmp;
3808 c->fragment_index_data[c->fragment_index_count++] = index;
3810 if (offset == avio_size(pb))
3811 c->fragment_index_complete = 1;
3816 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3817 /* like the files created with Adobe Premiere 5.0, for samples see */
3818 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3819 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3824 return 0; /* continue */
3825 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3826 avio_skip(pb, atom.size - 4);
3829 atom.type = avio_rl32(pb);
3831 if (atom.type != MKTAG('m','d','a','t')) {
3832 avio_skip(pb, atom.size);
3835 err = mov_read_mdat(c, pb, atom);
3839 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3844 uint8_t *moov_data; /* uncompressed data */
3845 long cmov_len, moov_len;
3848 avio_rb32(pb); /* dcom atom */
3849 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3850 return AVERROR_INVALIDDATA;
3851 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3852 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3853 return AVERROR_INVALIDDATA;
3855 avio_rb32(pb); /* cmvd atom */
3856 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3857 return AVERROR_INVALIDDATA;
3858 moov_len = avio_rb32(pb); /* uncompressed size */
3859 cmov_len = atom.size - 6 * 4;
3861 cmov_data = av_malloc(cmov_len);
3863 return AVERROR(ENOMEM);
3864 moov_data = av_malloc(moov_len);
3867 return AVERROR(ENOMEM);
3869 ret = ffio_read_size(pb, cmov_data, cmov_len);
3871 goto free_and_return;
3873 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3874 goto free_and_return;
3875 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3876 goto free_and_return;
3877 ctx.seekable = AVIO_SEEKABLE_NORMAL;
3878 atom.type = MKTAG('m','o','o','v');
3879 atom.size = moov_len;
3880 ret = mov_read_default(c, &ctx, atom);
3886 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3887 return AVERROR(ENOSYS);
3891 /* edit list atom */
3892 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3894 MOVStreamContext *sc;
3895 int i, edit_count, version;
3897 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3899 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3901 version = avio_r8(pb); /* version */
3902 avio_rb24(pb); /* flags */
3903 edit_count = avio_rb32(pb); /* entries */
3908 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3909 av_free(sc->elst_data);
3911 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3913 return AVERROR(ENOMEM);
3915 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3916 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3917 MOVElst *e = &sc->elst_data[i];
3920 e->duration = avio_rb64(pb);
3921 e->time = avio_rb64(pb);
3923 e->duration = avio_rb32(pb); /* segment duration */
3924 e->time = (int32_t)avio_rb32(pb); /* media time */
3926 e->rate = avio_rb32(pb) / 65536.0;
3927 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3928 e->duration, e->time, e->rate);
3935 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3937 MOVStreamContext *sc;
3939 if (c->fc->nb_streams < 1)
3940 return AVERROR_INVALIDDATA;
3941 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3942 sc->timecode_track = avio_rb32(pb);
3946 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3950 static const uint8_t uuid_isml_manifest[] = {
3951 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3952 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3954 static const uint8_t uuid_xmp[] = {
3955 0xbe, 0x7a, 0xcf, 0xcb, 0x97, 0xa9, 0x42, 0xe8,
3956 0x9c, 0x71, 0x99, 0x94, 0x91, 0xe3, 0xaf, 0xac
3959 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3960 return AVERROR_INVALIDDATA;
3962 ret = avio_read(pb, uuid, sizeof(uuid));
3965 } else if (ret != sizeof(uuid)) {
3966 return AVERROR_INVALIDDATA;
3968 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3969 uint8_t *buffer, *ptr;
3971 size_t len = atom.size - sizeof(uuid);
3974 return AVERROR_INVALIDDATA;
3976 ret = avio_skip(pb, 4); // zeroes
3979 buffer = av_mallocz(len + 1);
3981 return AVERROR(ENOMEM);
3983 ret = avio_read(pb, buffer, len);
3987 } else if (ret != len) {
3989 return AVERROR_INVALIDDATA;
3993 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3994 ptr += sizeof("systemBitrate=\"") - 1;
3995 c->bitrates_count++;
3996 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3998 c->bitrates_count = 0;
4000 return AVERROR(ENOMEM);
4003 ret = strtol(ptr, &endptr, 10);
4004 if (ret < 0 || errno || *endptr != '"') {
4005 c->bitrates[c->bitrates_count - 1] = 0;
4007 c->bitrates[c->bitrates_count - 1] = ret;
4012 } else if (!memcmp(uuid, uuid_xmp, sizeof(uuid))) {
4014 size_t len = atom.size - sizeof(uuid);
4016 buffer = av_mallocz(len + 1);
4018 return AVERROR(ENOMEM);
4020 ret = avio_read(pb, buffer, len);
4024 } else if (ret != len) {
4026 return AVERROR_INVALIDDATA;
4028 if (c->export_xmp) {
4030 av_dict_set(&c->fc->metadata, "xmp", buffer, 0);
4037 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4040 uint8_t content[16];
4045 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
4051 && !memcmp(content, "Anevia\x1A\x1A", 8)
4052 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
4053 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
4059 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4061 uint32_t format = avio_rl32(pb);
4062 MOVStreamContext *sc;
4066 if (c->fc->nb_streams < 1)
4068 st = c->fc->streams[c->fc->nb_streams - 1];
4073 case MKTAG('e','n','c','v'): // encrypted video
4074 case MKTAG('e','n','c','a'): // encrypted audio
4075 id = mov_codec_id(st, format);
4076 if (st->codecpar->codec_id != AV_CODEC_ID_NONE &&
4077 st->codecpar->codec_id != id) {
4078 av_log(c->fc, AV_LOG_WARNING,
4079 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
4080 (char*)&format, st->codecpar->codec_id);
4084 st->codecpar->codec_id = id;
4085 sc->format = format;
4089 if (format != sc->format) {
4090 av_log(c->fc, AV_LOG_WARNING,
4091 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4092 (char*)&format, (char*)&sc->format);
4100 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4103 MOVStreamContext *sc;
4104 size_t auxiliary_info_size;
4106 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4109 st = c->fc->streams[c->fc->nb_streams - 1];
4112 if (sc->cenc.aes_ctr) {
4113 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
4114 return AVERROR_INVALIDDATA;
4117 avio_r8(pb); /* version */
4118 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
4120 avio_rb32(pb); /* entries */
4122 if (atom.size < 8) {
4123 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" too small\n", atom.size);
4124 return AVERROR_INVALIDDATA;
4127 /* save the auxiliary info as is */
4128 auxiliary_info_size = atom.size - 8;
4130 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
4131 if (!sc->cenc.auxiliary_info) {
4132 return AVERROR(ENOMEM);
4135 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
4137 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
4139 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
4140 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
4141 return AVERROR_INVALIDDATA;
4144 /* initialize the cipher */
4145 sc->cenc.aes_ctr = av_aes_ctr_alloc();
4146 if (!sc->cenc.aes_ctr) {
4147 return AVERROR(ENOMEM);
4150 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
4153 static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4156 MOVStreamContext *sc;
4158 int atom_header_size;
4161 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4164 st = c->fc->streams[c->fc->nb_streams - 1];
4167 if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
4168 av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
4169 return AVERROR_INVALIDDATA;
4172 atom_header_size = 9;
4174 avio_r8(pb); /* version */
4175 flags = avio_rb24(pb);
4177 if ((flags & 0x01) != 0) {
4178 atom_header_size += 8;
4180 avio_rb32(pb); /* info type */
4181 avio_rb32(pb); /* info type param */
4184 sc->cenc.auxiliary_info_default_size = avio_r8(pb);
4185 avio_rb32(pb); /* entries */
4187 if (atom.size <= atom_header_size) {
4191 /* save the auxiliary info sizes as is */
4192 data_size = atom.size - atom_header_size;
4194 sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
4195 if (!sc->cenc.auxiliary_info_sizes) {
4196 return AVERROR(ENOMEM);
4199 sc->cenc.auxiliary_info_sizes_count = data_size;
4201 if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
4202 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
4203 return AVERROR_INVALIDDATA;
4209 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, uint8_t *input, int size)
4211 uint32_t encrypted_bytes;
4212 uint16_t subsample_count;
4213 uint16_t clear_bytes;
4214 uint8_t* input_end = input + size;
4217 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4218 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
4219 return AVERROR_INVALIDDATA;
4222 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
4223 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
4225 if (!sc->cenc.use_subsamples)
4227 /* decrypt the whole packet */
4228 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
4232 /* read the subsample count */
4233 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4234 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
4235 return AVERROR_INVALIDDATA;
4238 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
4239 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4241 for (; subsample_count > 0; subsample_count--)
4243 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4244 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
4245 return AVERROR_INVALIDDATA;
4248 /* read the number of clear / encrypted bytes */
4249 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
4250 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4251 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
4252 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
4254 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
4255 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
4256 return AVERROR_INVALIDDATA;
4259 /* skip the clear bytes */
4260 input += clear_bytes;
4262 /* decrypt the encrypted bytes */
4263 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
4264 input += encrypted_bytes;
4267 if (input < input_end) {
4268 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
4269 return AVERROR_INVALIDDATA;
4275 static int mov_seek_auxiliary_info(AVFormatContext *s, MOVStreamContext *sc)
4277 size_t auxiliary_info_seek_offset = 0;
4280 if (sc->cenc.auxiliary_info_default_size) {
4281 auxiliary_info_seek_offset = (size_t)sc->cenc.auxiliary_info_default_size * sc->current_sample;
4282 } else if (sc->cenc.auxiliary_info_sizes) {
4283 if (sc->current_sample > sc->cenc.auxiliary_info_sizes_count) {
4284 av_log(s, AV_LOG_ERROR, "current sample %d greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
4285 sc->current_sample, sc->cenc.auxiliary_info_sizes_count);
4286 return AVERROR_INVALIDDATA;
4289 for (i = 0; i < sc->current_sample; i++) {
4290 auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
4294 if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
4295 av_log(s, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
4296 auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
4297 return AVERROR_INVALIDDATA;
4300 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
4305 static const MOVParseTableEntry mov_default_parse_table[] = {
4306 { MKTAG('A','C','L','R'), mov_read_aclr },
4307 { MKTAG('A','P','R','G'), mov_read_avid },
4308 { MKTAG('A','A','L','P'), mov_read_avid },
4309 { MKTAG('A','R','E','S'), mov_read_ares },
4310 { MKTAG('a','v','s','s'), mov_read_avss },
4311 { MKTAG('c','h','p','l'), mov_read_chpl },
4312 { MKTAG('c','o','6','4'), mov_read_stco },
4313 { MKTAG('c','o','l','r'), mov_read_colr },
4314 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
4315 { MKTAG('d','i','n','f'), mov_read_default },
4316 { MKTAG('D','p','x','E'), mov_read_dpxe },
4317 { MKTAG('d','r','e','f'), mov_read_dref },
4318 { MKTAG('e','d','t','s'), mov_read_default },
4319 { MKTAG('e','l','s','t'), mov_read_elst },
4320 { MKTAG('e','n','d','a'), mov_read_enda },
4321 { MKTAG('f','i','e','l'), mov_read_fiel },
4322 { MKTAG('a','d','r','m'), mov_read_adrm },
4323 { MKTAG('f','t','y','p'), mov_read_ftyp },
4324 { MKTAG('g','l','b','l'), mov_read_glbl },
4325 { MKTAG('h','d','l','r'), mov_read_hdlr },
4326 { MKTAG('i','l','s','t'), mov_read_ilst },
4327 { MKTAG('j','p','2','h'), mov_read_jp2h },
4328 { MKTAG('m','d','a','t'), mov_read_mdat },
4329 { MKTAG('m','d','h','d'), mov_read_mdhd },
4330 { MKTAG('m','d','i','a'), mov_read_default },
4331 { MKTAG('m','e','t','a'), mov_read_meta },
4332 { MKTAG('m','i','n','f'), mov_read_default },
4333 { MKTAG('m','o','o','f'), mov_read_moof },
4334 { MKTAG('m','o','o','v'), mov_read_moov },
4335 { MKTAG('m','v','e','x'), mov_read_default },
4336 { MKTAG('m','v','h','d'), mov_read_mvhd },
4337 { MKTAG('S','M','I',' '), mov_read_svq3 },
4338 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
4339 { MKTAG('a','v','c','C'), mov_read_glbl },
4340 { MKTAG('p','a','s','p'), mov_read_pasp },
4341 { MKTAG('s','i','d','x'), mov_read_sidx },
4342 { MKTAG('s','t','b','l'), mov_read_default },
4343 { MKTAG('s','t','c','o'), mov_read_stco },
4344 { MKTAG('s','t','p','s'), mov_read_stps },
4345 { MKTAG('s','t','r','f'), mov_read_strf },
4346 { MKTAG('s','t','s','c'), mov_read_stsc },
4347 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
4348 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
4349 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
4350 { MKTAG('s','t','t','s'), mov_read_stts },
4351 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
4352 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
4353 { MKTAG('t','f','d','t'), mov_read_tfdt },
4354 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
4355 { MKTAG('t','r','a','k'), mov_read_trak },
4356 { MKTAG('t','r','a','f'), mov_read_default },
4357 { MKTAG('t','r','e','f'), mov_read_default },
4358 { MKTAG('t','m','c','d'), mov_read_tmcd },
4359 { MKTAG('c','h','a','p'), mov_read_chap },
4360 { MKTAG('t','r','e','x'), mov_read_trex },
4361 { MKTAG('t','r','u','n'), mov_read_trun },
4362 { MKTAG('u','d','t','a'), mov_read_default },
4363 { MKTAG('w','a','v','e'), mov_read_wave },
4364 { MKTAG('e','s','d','s'), mov_read_esds },
4365 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
4366 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
4367 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
4368 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
4369 { MKTAG('w','f','e','x'), mov_read_wfex },
4370 { MKTAG('c','m','o','v'), mov_read_cmov },
4371 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
4372 { MKTAG('d','v','c','1'), mov_read_dvc1 },
4373 { MKTAG('s','b','g','p'), mov_read_sbgp },
4374 { MKTAG('h','v','c','C'), mov_read_glbl },
4375 { MKTAG('u','u','i','d'), mov_read_uuid },
4376 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
4377 { MKTAG('f','r','e','e'), mov_read_free },
4378 { MKTAG('-','-','-','-'), mov_read_custom },
4379 { MKTAG('s','i','n','f'), mov_read_default },
4380 { MKTAG('f','r','m','a'), mov_read_frma },
4381 { MKTAG('s','e','n','c'), mov_read_senc },
4382 { MKTAG('s','a','i','z'), mov_read_saiz },
4386 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4388 int64_t total_size = 0;
4392 if (c->atom_depth > 10) {
4393 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
4394 return AVERROR_INVALIDDATA;
4399 atom.size = INT64_MAX;
4400 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
4401 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
4404 if (atom.size >= 8) {
4405 a.size = avio_rb32(pb);
4406 a.type = avio_rl32(pb);
4407 if (a.type == MKTAG('f','r','e','e') &&
4411 uint32_t *type = (uint32_t *)buf + 1;
4412 if (avio_read(pb, buf, 8) != 8)
4413 return AVERROR_INVALIDDATA;
4414 avio_seek(pb, -8, SEEK_CUR);
4415 if (*type == MKTAG('m','v','h','d') ||
4416 *type == MKTAG('c','m','o','v')) {
4417 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
4418 a.type = MKTAG('m','o','o','v');
4421 if (atom.type != MKTAG('r','o','o','t') &&
4422 atom.type != MKTAG('m','o','o','v'))
4424 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
4426 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
4433 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
4434 a.size = avio_rb64(pb) - 8;
4438 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
4439 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
4441 a.size = atom.size - total_size + 8;
4446 a.size = FFMIN(a.size, atom.size - total_size);
4448 for (i = 0; mov_default_parse_table[i].type; i++)
4449 if (mov_default_parse_table[i].type == a.type) {
4450 parse = mov_default_parse_table[i].parse;
4454 // container is user data
4455 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
4456 atom.type == MKTAG('i','l','s','t')))
4457 parse = mov_read_udta_string;
4459 // Supports parsing the QuickTime Metadata Keys.
4460 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
4461 if (!parse && c->found_hdlr_mdta &&
4462 atom.type == MKTAG('m','e','t','a') &&
4463 a.type == MKTAG('k','e','y','s')) {
4464 parse = mov_read_keys;
4467 if (!parse) { /* skip leaf atoms data */
4468 avio_skip(pb, a.size);
4470 int64_t start_pos = avio_tell(pb);
4472 int err = parse(c, pb, a);
4477 if (c->found_moov && c->found_mdat &&
4478 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
4479 start_pos + a.size == avio_size(pb))) {
4480 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
4481 c->next_root_atom = start_pos + a.size;
4485 left = a.size - avio_tell(pb) + start_pos;
4486 if (left > 0) /* skip garbage at atom end */
4487 avio_skip(pb, left);
4488 else if (left < 0) {
4489 av_log(c->fc, AV_LOG_WARNING,
4490 "overread end of atom '%.4s' by %"PRId64" bytes\n",
4491 (char*)&a.type, -left);
4492 avio_seek(pb, left, SEEK_CUR);
4496 total_size += a.size;
4499 if (total_size < atom.size && atom.size < 0x7ffff)
4500 avio_skip(pb, atom.size - total_size);
4506 static int mov_probe(AVProbeData *p)
4511 int moov_offset = -1;
4513 /* check file header */
4516 /* ignore invalid offset */
4517 if ((offset + 8) > (unsigned int)p->buf_size)
4519 tag = AV_RL32(p->buf + offset + 4);
4521 /* check for obvious tags */
4522 case MKTAG('m','o','o','v'):
4523 moov_offset = offset + 4;
4524 case MKTAG('m','d','a','t'):
4525 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
4526 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
4527 case MKTAG('f','t','y','p'):
4528 if (AV_RB32(p->buf+offset) < 8 &&
4529 (AV_RB32(p->buf+offset) != 1 ||
4530 offset + 12 > (unsigned int)p->buf_size ||
4531 AV_RB64(p->buf+offset + 8) == 0)) {
4532 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4533 } else if (tag == MKTAG('f','t','y','p') &&
4534 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
4535 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
4537 score = FFMAX(score, 5);
4539 score = AVPROBE_SCORE_MAX;
4541 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4543 /* those are more common words, so rate then a bit less */
4544 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
4545 case MKTAG('w','i','d','e'):
4546 case MKTAG('f','r','e','e'):
4547 case MKTAG('j','u','n','k'):
4548 case MKTAG('p','i','c','t'):
4549 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
4550 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4552 case MKTAG(0x82,0x82,0x7f,0x7d):
4553 case MKTAG('s','k','i','p'):
4554 case MKTAG('u','u','i','d'):
4555 case MKTAG('p','r','f','l'):
4556 /* if we only find those cause probedata is too small at least rate them */
4557 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4558 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4561 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4564 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
4565 /* moov atom in the header - we should make sure that this is not a
4566 * MOV-packed MPEG-PS */
4567 offset = moov_offset;
4569 while(offset < (p->buf_size - 16)){ /* Sufficient space */
4570 /* We found an actual hdlr atom */
4571 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
4572 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
4573 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
4574 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
4575 /* We found a media handler reference atom describing an
4576 * MPEG-PS-in-MOV, return a
4577 * low score to force expanding the probe window until
4578 * mpegps_probe finds what it needs */
4589 // must be done after parsing all trak because there's no order requirement
4590 static void mov_read_chapters(AVFormatContext *s)
4592 MOVContext *mov = s->priv_data;
4593 AVStream *st = NULL;
4594 MOVStreamContext *sc;
4598 for (i = 0; i < s->nb_streams; i++)
4599 if (s->streams[i]->id == mov->chapter_track) {
4604 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
4608 st->discard = AVDISCARD_ALL;
4610 cur_pos = avio_tell(sc->pb);
4612 for (i = 0; i < st->nb_index_entries; i++) {
4613 AVIndexEntry *sample = &st->index_entries[i];
4614 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
4619 if (end < sample->timestamp) {
4620 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
4621 end = AV_NOPTS_VALUE;
4624 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4625 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
4629 // the first two bytes are the length of the title
4630 len = avio_rb16(sc->pb);
4631 if (len > sample->size-2)
4633 title_len = 2*len + 1;
4634 if (!(title = av_mallocz(title_len)))
4637 // The samples could theoretically be in any encoding if there's an encd
4638 // atom following, but in practice are only utf-8 or utf-16, distinguished
4639 // instead by the presence of a BOM
4643 ch = avio_rb16(sc->pb);
4645 avio_get_str16be(sc->pb, len, title, title_len);
4646 else if (ch == 0xfffe)
4647 avio_get_str16le(sc->pb, len, title, title_len);
4650 if (len == 1 || len == 2)
4653 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
4657 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
4661 avio_seek(sc->pb, cur_pos, SEEK_SET);
4664 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
4665 uint32_t value, int flags)
4668 char buf[AV_TIMECODE_STR_SIZE];
4669 AVRational rate = st->avg_frame_rate;
4670 int ret = av_timecode_init(&tc, rate, flags, 0, s);
4673 av_dict_set(&st->metadata, "timecode",
4674 av_timecode_make_string(&tc, buf, value), 0);
4678 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
4680 MOVStreamContext *sc = st->priv_data;
4682 int64_t cur_pos = avio_tell(sc->pb);
4685 if (!st->nb_index_entries)
4688 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
4689 value = avio_rb32(s->pb);
4691 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
4692 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
4693 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
4695 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
4696 * not the case) and thus assume "frame number format" instead of QT one.
4697 * No sample with tmcd track can be found with a QT timecode at the moment,
4698 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
4700 parse_timecode_in_framenum_format(s, st, value, flags);
4702 avio_seek(sc->pb, cur_pos, SEEK_SET);
4706 static int mov_read_close(AVFormatContext *s)
4708 MOVContext *mov = s->priv_data;
4711 for (i = 0; i < s->nb_streams; i++) {
4712 AVStream *st = s->streams[i];
4713 MOVStreamContext *sc = st->priv_data;
4718 av_freep(&sc->ctts_data);
4719 for (j = 0; j < sc->drefs_count; j++) {
4720 av_freep(&sc->drefs[j].path);
4721 av_freep(&sc->drefs[j].dir);
4723 av_freep(&sc->drefs);
4725 sc->drefs_count = 0;
4727 if (!sc->pb_is_copied)
4728 ff_format_io_close(s, &sc->pb);
4731 av_freep(&sc->chunk_offsets);
4732 av_freep(&sc->stsc_data);
4733 av_freep(&sc->sample_sizes);
4734 av_freep(&sc->keyframes);
4735 av_freep(&sc->stts_data);
4736 av_freep(&sc->stps_data);
4737 av_freep(&sc->elst_data);
4738 av_freep(&sc->rap_group);
4739 av_freep(&sc->display_matrix);
4741 av_freep(&sc->cenc.auxiliary_info);
4742 av_freep(&sc->cenc.auxiliary_info_sizes);
4743 av_aes_ctr_free(sc->cenc.aes_ctr);
4746 if (mov->dv_demux) {
4747 avformat_free_context(mov->dv_fctx);
4748 mov->dv_fctx = NULL;
4751 if (mov->meta_keys) {
4752 for (i = 1; i < mov->meta_keys_count; i++) {
4753 av_freep(&mov->meta_keys[i]);
4755 av_freep(&mov->meta_keys);
4758 av_freep(&mov->trex_data);
4759 av_freep(&mov->bitrates);
4761 for (i = 0; i < mov->fragment_index_count; i++) {
4762 MOVFragmentIndex* index = mov->fragment_index_data[i];
4763 av_freep(&index->items);
4764 av_freep(&mov->fragment_index_data[i]);
4766 av_freep(&mov->fragment_index_data);
4768 av_freep(&mov->aes_decrypt);
4773 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
4777 for (i = 0; i < s->nb_streams; i++) {
4778 AVStream *st = s->streams[i];
4779 MOVStreamContext *sc = st->priv_data;
4781 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
4782 sc->timecode_track == tmcd_id)
4788 /* look for a tmcd track not referenced by any video track, and export it globally */
4789 static void export_orphan_timecode(AVFormatContext *s)
4793 for (i = 0; i < s->nb_streams; i++) {
4794 AVStream *st = s->streams[i];
4796 if (st->codecpar->codec_tag == MKTAG('t','m','c','d') &&
4797 !tmcd_is_referenced(s, i + 1)) {
4798 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
4800 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
4807 static int read_tfra(MOVContext *mov, AVIOContext *f)
4809 MOVFragmentIndex* index = NULL;
4810 int version, fieldlength, i, j;
4811 int64_t pos = avio_tell(f);
4812 uint32_t size = avio_rb32(f);
4815 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
4818 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
4819 index = av_mallocz(sizeof(MOVFragmentIndex));
4821 return AVERROR(ENOMEM);
4824 tmp = av_realloc_array(mov->fragment_index_data,
4825 mov->fragment_index_count + 1,
4826 sizeof(MOVFragmentIndex*));
4829 return AVERROR(ENOMEM);
4831 mov->fragment_index_data = tmp;
4832 mov->fragment_index_data[mov->fragment_index_count++] = index;
4834 version = avio_r8(f);
4836 index->track_id = avio_rb32(f);
4837 fieldlength = avio_rb32(f);
4838 index->item_count = avio_rb32(f);
4839 index->items = av_mallocz_array(
4840 index->item_count, sizeof(MOVFragmentIndexItem));
4841 if (!index->items) {
4842 index->item_count = 0;
4843 return AVERROR(ENOMEM);
4845 for (i = 0; i < index->item_count; i++) {
4846 int64_t time, offset;
4848 time = avio_rb64(f);
4849 offset = avio_rb64(f);
4851 time = avio_rb32(f);
4852 offset = avio_rb32(f);
4854 index->items[i].time = time;
4855 index->items[i].moof_offset = offset;
4856 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
4858 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
4860 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
4864 avio_seek(f, pos + size, SEEK_SET);
4868 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
4870 int64_t stream_size = avio_size(f);
4871 int64_t original_pos = avio_tell(f);
4875 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4879 mfra_size = avio_rb32(f);
4880 if (mfra_size < 0 || mfra_size > stream_size) {
4881 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4884 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4888 if (avio_rb32(f) != mfra_size) {
4889 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4892 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4893 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4896 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4898 ret = read_tfra(c, f);
4904 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4906 av_log(c->fc, AV_LOG_ERROR,
4907 "failed to seek back after looking for mfra\n");
4913 static int mov_read_header(AVFormatContext *s)
4915 MOVContext *mov = s->priv_data;
4916 AVIOContext *pb = s->pb;
4918 MOVAtom atom = { AV_RL32("root") };
4921 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
4922 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
4923 mov->decryption_key_len, AES_CTR_KEY_SIZE);
4924 return AVERROR(EINVAL);
4928 mov->trak_index = -1;
4929 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4931 atom.size = avio_size(pb);
4933 atom.size = INT64_MAX;
4935 /* check MOV header */
4937 if (mov->moov_retry)
4938 avio_seek(pb, 0, SEEK_SET);
4939 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4940 av_log(s, AV_LOG_ERROR, "error reading header\n");
4944 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4945 if (!mov->found_moov) {
4946 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4948 return AVERROR_INVALIDDATA;
4950 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4953 if (mov->chapter_track > 0 && !mov->ignore_chapters)
4954 mov_read_chapters(s);
4955 for (i = 0; i < s->nb_streams; i++)
4956 if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd"))
4957 mov_read_timecode_track(s, s->streams[i]);
4960 /* copy timecode metadata from tmcd tracks to the related video streams */
4961 for (i = 0; i < s->nb_streams; i++) {
4962 AVStream *st = s->streams[i];
4963 MOVStreamContext *sc = st->priv_data;
4964 if (sc->timecode_track > 0) {
4965 AVDictionaryEntry *tcr;
4966 int tmcd_st_id = -1;
4968 for (j = 0; j < s->nb_streams; j++)
4969 if (s->streams[j]->id == sc->timecode_track)
4972 if (tmcd_st_id < 0 || tmcd_st_id == i)
4974 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4976 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4979 export_orphan_timecode(s);
4981 for (i = 0; i < s->nb_streams; i++) {
4982 AVStream *st = s->streams[i];
4983 MOVStreamContext *sc = st->priv_data;
4984 fix_timescale(mov, sc);
4985 if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {
4986 st->skip_samples = sc->start_pad;
4988 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4989 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4990 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4991 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4992 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
4993 st->codecpar->width = sc->width;
4994 st->codecpar->height = sc->height;
4996 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4997 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
5001 if (mov->handbrake_version &&
5002 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
5003 st->codecpar->codec_id == AV_CODEC_ID_MP3
5005 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
5006 st->need_parsing = AVSTREAM_PARSE_FULL;
5010 if (mov->trex_data) {
5011 for (i = 0; i < s->nb_streams; i++) {
5012 AVStream *st = s->streams[i];
5013 MOVStreamContext *sc = st->priv_data;
5014 if (st->duration > 0)
5015 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
5019 if (mov->use_mfra_for > 0) {
5020 for (i = 0; i < s->nb_streams; i++) {
5021 AVStream *st = s->streams[i];
5022 MOVStreamContext *sc = st->priv_data;
5023 if (sc->duration_for_fps > 0) {
5024 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /
5025 sc->duration_for_fps;
5030 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
5031 if (mov->bitrates[i]) {
5032 s->streams[i]->codecpar->bit_rate = mov->bitrates[i];
5036 ff_rfps_calculate(s);
5038 for (i = 0; i < s->nb_streams; i++) {
5039 AVStream *st = s->streams[i];
5040 MOVStreamContext *sc = st->priv_data;
5042 switch (st->codecpar->codec_type) {
5043 case AVMEDIA_TYPE_AUDIO:
5044 err = ff_replaygain_export(st, s->metadata);
5050 case AVMEDIA_TYPE_VIDEO:
5051 if (sc->display_matrix) {
5052 AVPacketSideData *sd, *tmp;
5054 tmp = av_realloc_array(st->side_data,
5055 st->nb_side_data + 1, sizeof(*tmp));
5057 return AVERROR(ENOMEM);
5059 st->side_data = tmp;
5062 sd = &st->side_data[st->nb_side_data - 1];
5063 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
5064 sd->size = sizeof(int32_t) * 9;
5065 sd->data = (uint8_t*)sc->display_matrix;
5066 sc->display_matrix = NULL;
5071 ff_configure_buffers_for_index(s, AV_TIME_BASE);
5076 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
5078 AVIndexEntry *sample = NULL;
5079 int64_t best_dts = INT64_MAX;
5081 for (i = 0; i < s->nb_streams; i++) {
5082 AVStream *avst = s->streams[i];
5083 MOVStreamContext *msc = avst->priv_data;
5084 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
5085 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
5086 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
5087 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
5088 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
5090 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
5091 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
5092 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
5093 sample = current_sample;
5102 static int should_retry(AVIOContext *pb, int error_code) {
5103 if (error_code == AVERROR_EOF || avio_feof(pb))
5109 static int mov_switch_root(AVFormatContext *s, int64_t target)
5111 MOVContext *mov = s->priv_data;
5113 int already_read = 0;
5115 if (avio_seek(s->pb, target, SEEK_SET) != target) {
5116 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
5117 return AVERROR_INVALIDDATA;
5120 mov->next_root_atom = 0;
5122 for (i = 0; i < mov->fragment_index_count; i++) {
5123 MOVFragmentIndex *index = mov->fragment_index_data[i];
5125 for (j = 0; j < index->item_count; j++) {
5126 MOVFragmentIndexItem *item = &index->items[j];
5128 mov->next_root_atom = item->moof_offset;
5129 break; // Advance to next index in outer loop
5130 } else if (item->moof_offset == target) {
5131 index->current_item = FFMIN(j, index->current_item);
5132 if (item->headers_read)
5134 item->headers_read = 1;
5139 index->current_item = 0;
5145 mov->found_mdat = 0;
5147 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
5150 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
5155 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
5157 MOVContext *mov = s->priv_data;
5158 MOVStreamContext *sc;
5159 AVIndexEntry *sample;
5160 AVStream *st = NULL;
5164 sample = mov_find_next_sample(s, &st);
5165 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
5166 if (!mov->next_root_atom)
5168 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
5173 /* must be done just before reading, to avoid infinite loop on sample */
5174 sc->current_sample++;
5176 if (mov->next_root_atom) {
5177 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
5178 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
5181 if (st->discard != AVDISCARD_ALL) {
5182 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
5183 if (ret64 != sample->pos) {
5184 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
5185 sc->ffindex, sample->pos);
5186 sc->current_sample -= should_retry(sc->pb, ret64);
5187 return AVERROR_INVALIDDATA;
5189 ret = av_get_packet(sc->pb, pkt, sample->size);
5191 sc->current_sample -= should_retry(sc->pb, ret);
5194 if (sc->has_palette) {
5197 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
5199 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
5201 memcpy(pal, sc->palette, AVPALETTE_SIZE);
5202 sc->has_palette = 0;
5205 #if CONFIG_DV_DEMUXER
5206 if (mov->dv_demux && sc->dv_audio_container) {
5207 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
5208 av_freep(&pkt->data);
5210 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
5217 pkt->stream_index = sc->ffindex;
5218 pkt->dts = sample->timestamp;
5219 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
5220 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
5221 /* update ctts context */
5223 if (sc->ctts_index < sc->ctts_count &&
5224 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
5226 sc->ctts_sample = 0;
5229 pkt->dts = AV_NOPTS_VALUE;
5231 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
5232 st->index_entries[sc->current_sample].timestamp : st->duration;
5233 pkt->duration = next_dts - pkt->dts;
5234 pkt->pts = pkt->dts;
5236 if (st->discard == AVDISCARD_ALL)
5238 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
5239 pkt->pos = sample->pos;
5242 aax_filter(pkt->data, pkt->size, mov);
5244 if (sc->cenc.aes_ctr) {
5245 ret = cenc_filter(mov, sc, pkt->data, pkt->size);
5254 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
5256 MOVContext *mov = s->priv_data;
5259 if (!mov->fragment_index_complete)
5262 for (i = 0; i < mov->fragment_index_count; i++) {
5263 if (mov->fragment_index_data[i]->track_id == st->id) {
5264 MOVFragmentIndex *index = mov->fragment_index_data[i];
5265 for (j = index->item_count - 1; j >= 0; j--) {
5266 if (index->items[j].time <= timestamp) {
5267 if (index->items[j].headers_read)
5270 return mov_switch_root(s, index->items[j].moof_offset);
5279 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
5281 MOVStreamContext *sc = st->priv_data;
5282 int sample, time_sample;
5285 int ret = mov_seek_fragment(s, st, timestamp);
5289 sample = av_index_search_timestamp(st, timestamp, flags);
5290 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
5291 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
5293 if (sample < 0) /* not sure what to do */
5294 return AVERROR_INVALIDDATA;
5295 sc->current_sample = sample;
5296 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
5297 /* adjust ctts index */
5298 if (sc->ctts_data) {
5300 for (i = 0; i < sc->ctts_count; i++) {
5301 int next = time_sample + sc->ctts_data[i].count;
5302 if (next > sc->current_sample) {
5304 sc->ctts_sample = sc->current_sample - time_sample;
5311 ret = mov_seek_auxiliary_info(s, sc);
5319 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
5321 MOVContext *mc = s->priv_data;
5326 if (stream_index >= s->nb_streams)
5327 return AVERROR_INVALIDDATA;
5329 st = s->streams[stream_index];
5330 sample = mov_seek_stream(s, st, sample_time, flags);
5334 if (mc->seek_individually) {
5335 /* adjust seek timestamp to found sample timestamp */
5336 int64_t seek_timestamp = st->index_entries[sample].timestamp;
5338 for (i = 0; i < s->nb_streams; i++) {
5340 MOVStreamContext *sc = s->streams[i]->priv_data;
5342 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
5344 if (stream_index == i)
5347 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
5348 mov_seek_stream(s, st, timestamp, flags);
5351 for (i = 0; i < s->nb_streams; i++) {
5352 MOVStreamContext *sc;
5355 sc->current_sample = 0;
5358 MOVStreamContext *sc;
5359 AVIndexEntry *entry = mov_find_next_sample(s, &st);
5361 return AVERROR_INVALIDDATA;
5363 if (sc->ffindex == stream_index && sc->current_sample == sample)
5365 sc->current_sample++;
5371 #define OFFSET(x) offsetof(MOVContext, x)
5372 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
5373 static const AVOption mov_options[] = {
5374 {"use_absolute_path",
5375 "allow using absolute path when opening alias, this is a possible security issue",
5376 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
5378 {"seek_streams_individually",
5379 "Seek each stream individually to the to the closest point",
5380 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
5382 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
5384 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
5387 "use mfra for fragment timestamps",
5388 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
5389 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
5391 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
5392 FLAGS, "use_mfra_for" },
5393 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
5394 FLAGS, "use_mfra_for" },
5395 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
5396 FLAGS, "use_mfra_for" },
5397 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
5398 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5399 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
5400 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5401 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
5402 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5403 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
5404 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
5405 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
5406 .flags = AV_OPT_FLAG_DECODING_PARAM },
5407 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5408 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
5409 {.i64 = 0}, 0, 1, FLAGS },
5414 static const AVClass mov_class = {
5415 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
5416 .item_name = av_default_item_name,
5417 .option = mov_options,
5418 .version = LIBAVUTIL_VERSION_INT,
5421 AVInputFormat ff_mov_demuxer = {
5422 .name = "mov,mp4,m4a,3gp,3g2,mj2",
5423 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5424 .priv_class = &mov_class,
5425 .priv_data_size = sizeof(MOVContext),
5426 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
5427 .read_probe = mov_probe,
5428 .read_header = mov_read_header,
5429 .read_packet = mov_read_packet,
5430 .read_close = mov_read_close,
5431 .read_seek = mov_read_seek,
5432 .flags = AVFMT_NO_BYTE_SEEK,