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->codec->codec_type = AVMEDIA_TYPE_VIDEO;
213 st->codec->codec_id = id;
218 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
220 char language[4] = { 0 };
221 char buf[200], place[100];
222 uint16_t langcode = 0;
223 double longitude, latitude, altitude;
224 const char *key = "location";
226 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
227 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
228 return AVERROR_INVALIDDATA;
231 avio_skip(pb, 4); // version+flags
232 langcode = avio_rb16(pb);
233 ff_mov_lang_to_iso639(langcode, language);
236 len -= avio_get_str(pb, len, place, sizeof(place));
238 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
239 return AVERROR_INVALIDDATA;
241 avio_skip(pb, 1); // role
245 av_log(c->fc, AV_LOG_ERROR, "no space for coordinates left (%d)\n", len);
246 return AVERROR_INVALIDDATA;
248 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
249 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
250 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
252 // Try to output in the same format as the ?xyz field
253 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
255 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
256 av_strlcatf(buf, sizeof(buf), "/%s", place);
258 if (*language && strcmp(language, "und")) {
260 snprintf(key2, sizeof(key2), "%s-%s", key, language);
261 av_dict_set(&c->fc->metadata, key2, buf, 0);
263 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
264 return av_dict_set(&c->fc->metadata, key, buf, 0);
267 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
270 char key2[32], language[4] = {0};
272 const char *key = NULL;
273 uint16_t langcode = 0;
274 uint32_t data_type = 0, str_size, str_size_alloc;
275 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
280 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
281 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
282 case MKTAG( 'X','M','P','_'):
283 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
284 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
285 case MKTAG( 'a','k','I','D'): key = "account_type";
286 parse = mov_metadata_int8_no_padding; break;
287 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
288 case MKTAG( 'c','a','t','g'): key = "category"; break;
289 case MKTAG( 'c','p','i','l'): key = "compilation";
290 parse = mov_metadata_int8_no_padding; break;
291 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
292 case MKTAG( 'd','e','s','c'): key = "description"; break;
293 case MKTAG( 'd','i','s','k'): key = "disc";
294 parse = mov_metadata_track_or_disc_number; break;
295 case MKTAG( 'e','g','i','d'): key = "episode_uid";
296 parse = mov_metadata_int8_no_padding; break;
297 case MKTAG( 'g','n','r','e'): key = "genre";
298 parse = mov_metadata_gnre; break;
299 case MKTAG( 'h','d','v','d'): key = "hd_video";
300 parse = mov_metadata_int8_no_padding; break;
301 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
302 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
303 case MKTAG( 'l','o','c','i'):
304 return mov_metadata_loci(c, pb, atom.size);
305 case MKTAG( 'p','c','s','t'): key = "podcast";
306 parse = mov_metadata_int8_no_padding; break;
307 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
308 parse = mov_metadata_int8_no_padding; break;
309 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
310 case MKTAG( 'r','t','n','g'): key = "rating";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
313 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
314 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
315 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
316 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
317 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
318 case MKTAG( 's','t','i','k'): key = "media_type";
319 parse = mov_metadata_int8_no_padding; break;
320 case MKTAG( 't','r','k','n'): key = "track";
321 parse = mov_metadata_track_or_disc_number; break;
322 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
323 case MKTAG( 't','v','e','s'): key = "episode_sort";
324 parse = mov_metadata_int8_bypass_padding; break;
325 case MKTAG( 't','v','n','n'): key = "network"; break;
326 case MKTAG( 't','v','s','h'): key = "show"; break;
327 case MKTAG( 't','v','s','n'): key = "season_number";
328 parse = mov_metadata_int8_bypass_padding; break;
329 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
330 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
331 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
332 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
333 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
334 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
335 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
336 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
337 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
338 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
339 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
340 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
341 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
342 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
343 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
344 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
345 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
346 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
347 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
348 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
349 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
350 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
351 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
352 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
353 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
354 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
355 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
356 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
357 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
358 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
359 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
360 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
361 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
362 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
363 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
366 if (c->itunes_metadata && atom.size > 8) {
367 int data_size = avio_rb32(pb);
368 int tag = avio_rl32(pb);
369 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
370 data_type = avio_rb32(pb); // type
371 avio_rb32(pb); // unknown
372 str_size = data_size - 16;
375 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
376 int ret = mov_read_covr(c, pb, data_type, str_size);
378 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
381 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
382 uint32_t index = AV_RB32(&atom.type);
383 if (index < c->meta_keys_count) {
384 key = c->meta_keys[index];
386 av_log(c->fc, AV_LOG_WARNING,
387 "The index of 'data' is out of range: %d >= %d.\n",
388 index, c->meta_keys_count);
392 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
393 str_size = avio_rb16(pb); // string length
394 if (str_size > atom.size) {
396 avio_seek(pb, -2, SEEK_CUR);
397 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
400 langcode = avio_rb16(pb);
401 ff_mov_lang_to_iso639(langcode, language);
404 str_size = atom.size;
406 if (c->export_all && !key) {
407 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
413 if (atom.size < 0 || str_size >= INT_MAX/2)
414 return AVERROR_INVALIDDATA;
416 // Allocates enough space if data_type is a float32 number, otherwise
417 // worst-case requirement for output string in case of utf8 coded input
418 num = (data_type == 23);
419 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
420 str = av_mallocz(str_size_alloc);
422 return AVERROR(ENOMEM);
425 parse(c, pb, str_size, key);
427 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
428 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
429 } else if (data_type == 23 && str_size >= 4) { // BE float32
430 float val = av_int2float(avio_rb32(pb));
431 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
432 av_log(c->fc, AV_LOG_ERROR,
433 "Failed to store the float32 number (%f) in string.\n", val);
435 return AVERROR_INVALIDDATA;
438 int ret = ffio_read_size(pb, str, str_size);
445 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
446 av_dict_set(&c->fc->metadata, key, str, 0);
447 if (*language && strcmp(language, "und")) {
448 snprintf(key2, sizeof(key2), "%s-%s", key, language);
449 av_dict_set(&c->fc->metadata, key2, str, 0);
451 if (!strcmp(key, "encoder")) {
452 int major, minor, micro;
453 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
454 c->handbrake_version = 1000000*major + 1000*minor + micro;
458 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
459 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
460 key, str, (char*)&atom.type, str_size_alloc, atom.size);
466 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
469 int i, nb_chapters, str_len, version;
473 if (c->ignore_chapters)
476 if ((atom.size -= 5) < 0)
479 version = avio_r8(pb);
482 avio_rb32(pb); // ???
483 nb_chapters = avio_r8(pb);
485 for (i = 0; i < nb_chapters; i++) {
489 start = avio_rb64(pb);
490 str_len = avio_r8(pb);
492 if ((atom.size -= 9+str_len) < 0)
495 ret = ffio_read_size(pb, str, str_len);
499 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
504 #define MIN_DATA_ENTRY_BOX_SIZE 12
505 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
508 MOVStreamContext *sc;
511 if (c->fc->nb_streams < 1)
513 st = c->fc->streams[c->fc->nb_streams-1];
516 avio_rb32(pb); // version + flags
517 entries = avio_rb32(pb);
518 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
519 entries >= UINT_MAX / sizeof(*sc->drefs))
520 return AVERROR_INVALIDDATA;
523 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
525 return AVERROR(ENOMEM);
526 sc->drefs_count = entries;
528 for (i = 0; i < entries; i++) {
529 MOVDref *dref = &sc->drefs[i];
530 uint32_t size = avio_rb32(pb);
531 int64_t next = avio_tell(pb) + size - 4;
534 return AVERROR_INVALIDDATA;
536 dref->type = avio_rl32(pb);
537 avio_rb32(pb); // version + flags
538 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
540 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
541 /* macintosh alias record */
542 uint16_t volume_len, len;
548 volume_len = avio_r8(pb);
549 volume_len = FFMIN(volume_len, 27);
550 ret = ffio_read_size(pb, dref->volume, 27);
553 dref->volume[volume_len] = 0;
554 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
559 len = FFMIN(len, 63);
560 ret = ffio_read_size(pb, dref->filename, 63);
563 dref->filename[len] = 0;
564 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
568 /* read next level up_from_alias/down_to_target */
569 dref->nlvl_from = avio_rb16(pb);
570 dref->nlvl_to = avio_rb16(pb);
571 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
572 dref->nlvl_from, dref->nlvl_to);
576 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
579 type = avio_rb16(pb);
581 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
584 if (type == 2) { // absolute path
586 dref->path = av_mallocz(len+1);
588 return AVERROR(ENOMEM);
590 ret = ffio_read_size(pb, dref->path, len);
592 av_freep(&dref->path);
595 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
597 memmove(dref->path, dref->path+volume_len, len);
600 for (j = 0; j < len; j++)
601 if (dref->path[j] == ':' || dref->path[j] == 0)
603 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
604 } else if (type == 0) { // directory name
606 dref->dir = av_malloc(len+1);
608 return AVERROR(ENOMEM);
610 ret = ffio_read_size(pb, dref->dir, len);
612 av_freep(&dref->dir);
616 for (j = 0; j < len; j++)
617 if (dref->dir[j] == ':')
619 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
624 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x08%x size %d\n",
629 avio_seek(pb, next, SEEK_SET);
634 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
638 uint32_t av_unused ctype;
643 avio_r8(pb); /* version */
644 avio_rb24(pb); /* flags */
647 ctype = avio_rl32(pb);
648 type = avio_rl32(pb); /* component subtype */
650 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
651 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
653 if (c->trak_index < 0) { // meta not inside a trak
654 if (type == MKTAG('m','d','t','a')) {
655 c->found_hdlr_mdta = 1;
660 st = c->fc->streams[c->fc->nb_streams-1];
662 if (type == MKTAG('v','i','d','e'))
663 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
664 else if (type == MKTAG('s','o','u','n'))
665 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
666 else if (type == MKTAG('m','1','a',' '))
667 st->codec->codec_id = AV_CODEC_ID_MP2;
668 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
669 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
671 avio_rb32(pb); /* component manufacture */
672 avio_rb32(pb); /* component flags */
673 avio_rb32(pb); /* component flags mask */
675 title_size = atom.size - 24;
676 if (title_size > 0) {
677 title_str = av_malloc(title_size + 1); /* Add null terminator */
679 return AVERROR(ENOMEM);
681 ret = ffio_read_size(pb, title_str, title_size);
683 av_freep(&title_str);
686 title_str[title_size] = 0;
688 int off = (!c->isom && title_str[0] == title_size - 1);
689 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
691 av_freep(&title_str);
697 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
702 if (fc->nb_streams < 1)
704 st = fc->streams[fc->nb_streams-1];
706 avio_rb32(pb); /* version + flags */
707 ff_mp4_read_descr(fc, pb, &tag);
708 if (tag == MP4ESDescrTag) {
709 ff_mp4_parse_es_descr(pb, NULL);
711 avio_rb16(pb); /* ID */
713 ff_mp4_read_descr(fc, pb, &tag);
714 if (tag == MP4DecConfigDescrTag)
715 ff_mp4_read_dec_config_descr(fc, st, pb);
719 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
721 return ff_mov_read_esds(c->fc, pb);
724 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
727 enum AVAudioServiceType *ast;
728 int ac3info, acmod, lfeon, bsmod;
730 if (c->fc->nb_streams < 1)
732 st = c->fc->streams[c->fc->nb_streams-1];
734 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
737 return AVERROR(ENOMEM);
739 ac3info = avio_rb24(pb);
740 bsmod = (ac3info >> 14) & 0x7;
741 acmod = (ac3info >> 11) & 0x7;
742 lfeon = (ac3info >> 10) & 0x1;
743 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
744 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
746 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
748 if (st->codec->channels > 1 && bsmod == 0x7)
749 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
751 st->codec->audio_service_type = *ast;
756 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
759 enum AVAudioServiceType *ast;
760 int eac3info, acmod, lfeon, bsmod;
762 if (c->fc->nb_streams < 1)
764 st = c->fc->streams[c->fc->nb_streams-1];
766 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
769 return AVERROR(ENOMEM);
771 /* No need to parse fields for additional independent substreams and its
772 * associated dependent substreams since libavcodec's E-AC-3 decoder
773 * does not support them yet. */
774 avio_rb16(pb); /* data_rate and num_ind_sub */
775 eac3info = avio_rb24(pb);
776 bsmod = (eac3info >> 12) & 0x1f;
777 acmod = (eac3info >> 9) & 0x7;
778 lfeon = (eac3info >> 8) & 0x1;
779 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
781 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
782 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
784 if (st->codec->channels > 1 && bsmod == 0x7)
785 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
787 st->codec->audio_service_type = *ast;
792 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
794 const uint32_t ddts_size = 20;
797 uint32_t frame_duration_code = 0;
798 uint32_t channel_layout_code = 0;
801 buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
803 return AVERROR(ENOMEM);
805 if (avio_read(pb, buf, ddts_size) < ddts_size) {
807 return AVERROR_INVALIDDATA;
810 init_get_bits(&gb, buf, 8*ddts_size);
812 if (c->fc->nb_streams < 1) {
815 st = c->fc->streams[c->fc->nb_streams-1];
817 st->codec->sample_rate = get_bits_long(&gb, 32);
818 skip_bits_long(&gb, 32); /* max bitrate */
819 st->codec->bit_rate = get_bits_long(&gb, 32);
820 st->codec->bits_per_coded_sample = get_bits(&gb, 8);
821 frame_duration_code = get_bits(&gb, 2);
822 skip_bits(&gb, 30); /* various fields */
823 channel_layout_code = get_bits(&gb, 16);
825 st->codec->frame_size =
826 (frame_duration_code == 0) ? 512 :
827 (frame_duration_code == 1) ? 1024 :
828 (frame_duration_code == 2) ? 2048 :
829 (frame_duration_code == 3) ? 4096 : 0;
831 if (channel_layout_code > 0xff) {
832 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
834 st->codec->channel_layout =
835 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
836 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
837 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
838 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
839 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
840 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
842 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
847 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
851 if (c->fc->nb_streams < 1)
853 st = c->fc->streams[c->fc->nb_streams-1];
858 /* skip version and flags */
861 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
866 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
871 if (c->fc->nb_streams < 1)
873 st = c->fc->streams[c->fc->nb_streams-1];
875 if ((ret = ff_get_wav_header(c->fc, pb, st->codec, atom.size, 0)) < 0)
876 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
881 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
883 const int num = avio_rb32(pb);
884 const int den = avio_rb32(pb);
887 if (c->fc->nb_streams < 1)
889 st = c->fc->streams[c->fc->nb_streams-1];
891 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
892 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
893 av_log(c->fc, AV_LOG_WARNING,
894 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
895 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
897 } else if (den != 0) {
898 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
904 /* this atom contains actual media data */
905 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
907 if (atom.size == 0) /* wrong one (MP4) */
910 return 0; /* now go for moov */
913 #define DRM_BLOB_SIZE 56
915 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
917 uint8_t intermediate_key[20];
918 uint8_t intermediate_iv[20];
921 uint8_t file_checksum[20];
922 uint8_t calculated_checksum[20];
926 uint8_t *activation_bytes = c->activation_bytes;
927 uint8_t *fixed_key = c->audible_fixed_key;
931 sha = av_sha_alloc();
933 return AVERROR(ENOMEM);
934 c->aes_decrypt = av_aes_alloc();
935 if (!c->aes_decrypt) {
936 ret = AVERROR(ENOMEM);
940 /* drm blob processing */
941 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
942 avio_read(pb, input, DRM_BLOB_SIZE);
943 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
944 avio_read(pb, file_checksum, 20);
946 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
947 for (i = 0; i < 20; i++)
948 av_log(sha, AV_LOG_INFO, "%02x", file_checksum[i]);
949 av_log(c->fc, AV_LOG_INFO, "\n");
951 /* verify activation data */
952 if (!activation_bytes) {
953 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
954 ret = 0; /* allow ffprobe to continue working on .aax files */
957 if (c->activation_bytes_size != 4) {
958 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
959 ret = AVERROR(EINVAL);
963 /* verify fixed key */
964 if (c->audible_fixed_key_size != 16) {
965 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
966 ret = AVERROR(EINVAL);
970 /* AAX (and AAX+) key derivation */
971 av_sha_init(sha, 160);
972 av_sha_update(sha, fixed_key, 16);
973 av_sha_update(sha, activation_bytes, 4);
974 av_sha_final(sha, intermediate_key);
975 av_sha_init(sha, 160);
976 av_sha_update(sha, fixed_key, 16);
977 av_sha_update(sha, intermediate_key, 20);
978 av_sha_update(sha, activation_bytes, 4);
979 av_sha_final(sha, intermediate_iv);
980 av_sha_init(sha, 160);
981 av_sha_update(sha, intermediate_key, 16);
982 av_sha_update(sha, intermediate_iv, 16);
983 av_sha_final(sha, calculated_checksum);
984 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
985 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
986 ret = AVERROR_INVALIDDATA;
989 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
990 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
991 for (i = 0; i < 4; i++) {
992 // file data (in output) is stored in big-endian mode
993 if (activation_bytes[i] != output[3 - i]) { // critical error
994 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
995 ret = AVERROR_INVALIDDATA;
999 memcpy(c->file_key, output + 8, 16);
1000 memcpy(input, output + 26, 16);
1001 av_sha_init(sha, 160);
1002 av_sha_update(sha, input, 16);
1003 av_sha_update(sha, c->file_key, 16);
1004 av_sha_update(sha, fixed_key, 16);
1005 av_sha_final(sha, c->file_iv);
1013 // Audible AAX (and AAX+) bytestream decryption
1014 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1017 unsigned char iv[16];
1019 memcpy(iv, c->file_iv, 16); // iv is overwritten
1020 blocks = size >> 4; // trailing bytes are not encrypted!
1021 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1022 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1027 /* read major brand, minor version and compatible brands and store them as metadata */
1028 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1031 int comp_brand_size;
1032 char* comp_brands_str;
1033 uint8_t type[5] = {0};
1034 int ret = ffio_read_size(pb, type, 4);
1038 if (strcmp(type, "qt "))
1040 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1041 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1042 minor_ver = avio_rb32(pb); /* minor version */
1043 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1045 comp_brand_size = atom.size - 8;
1046 if (comp_brand_size < 0)
1047 return AVERROR_INVALIDDATA;
1048 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1049 if (!comp_brands_str)
1050 return AVERROR(ENOMEM);
1052 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1054 av_freep(&comp_brands_str);
1057 comp_brands_str[comp_brand_size] = 0;
1058 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1059 av_freep(&comp_brands_str);
1064 /* this atom should contain all header atoms */
1065 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1069 if (c->found_moov) {
1070 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1071 avio_skip(pb, atom.size);
1075 if ((ret = mov_read_default(c, pb, atom)) < 0)
1077 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1078 /* so we don't parse the whole file if over a network */
1080 return 0; /* now go for mdat */
1083 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1085 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1086 c->has_looked_for_mfra = 1;
1089 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1091 if ((ret = mov_read_mfra(c, pb)) < 0) {
1092 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1093 "read the mfra (may be a live ismv)\n");
1096 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1097 "seekable, can not look for mfra\n");
1100 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1101 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1102 return mov_read_default(c, pb, atom);
1105 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1109 struct tm *ptm, tmbuf;
1111 if(time >= 2082844800)
1112 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1114 ptm = gmtime_r(&timet, &tmbuf);
1116 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
1117 av_dict_set(metadata, "creation_time", buffer, 0);
1121 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1124 MOVStreamContext *sc;
1126 char language[4] = {0};
1128 int64_t creation_time;
1130 if (c->fc->nb_streams < 1)
1132 st = c->fc->streams[c->fc->nb_streams-1];
1135 if (sc->time_scale) {
1136 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1137 return AVERROR_INVALIDDATA;
1140 version = avio_r8(pb);
1142 avpriv_request_sample(c->fc, "Version %d", version);
1143 return AVERROR_PATCHWELCOME;
1145 avio_rb24(pb); /* flags */
1147 creation_time = avio_rb64(pb);
1150 creation_time = avio_rb32(pb);
1151 avio_rb32(pb); /* modification time */
1153 mov_metadata_creation_time(&st->metadata, creation_time);
1155 sc->time_scale = avio_rb32(pb);
1156 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1158 lang = avio_rb16(pb); /* language */
1159 if (ff_mov_lang_to_iso639(lang, language))
1160 av_dict_set(&st->metadata, "language", language, 0);
1161 avio_rb16(pb); /* quality */
1166 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1168 int64_t creation_time;
1169 int version = avio_r8(pb); /* version */
1170 avio_rb24(pb); /* flags */
1173 creation_time = avio_rb64(pb);
1176 creation_time = avio_rb32(pb);
1177 avio_rb32(pb); /* modification time */
1179 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1180 c->time_scale = avio_rb32(pb); /* time scale */
1182 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1184 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1185 // set the AVCodecContext duration because the duration of individual tracks
1186 // may be inaccurate
1187 if (c->time_scale > 0 && !c->trex_data)
1188 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1189 avio_rb32(pb); /* preferred scale */
1191 avio_rb16(pb); /* preferred volume */
1193 avio_skip(pb, 10); /* reserved */
1195 avio_skip(pb, 36); /* display matrix */
1197 avio_rb32(pb); /* preview time */
1198 avio_rb32(pb); /* preview duration */
1199 avio_rb32(pb); /* poster time */
1200 avio_rb32(pb); /* selection time */
1201 avio_rb32(pb); /* selection duration */
1202 avio_rb32(pb); /* current time */
1203 avio_rb32(pb); /* next track ID */
1208 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1213 if (c->fc->nb_streams < 1)
1215 st = c->fc->streams[c->fc->nb_streams-1];
1217 little_endian = avio_rb16(pb) & 0xFF;
1218 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1219 if (little_endian == 1) {
1220 switch (st->codec->codec_id) {
1221 case AV_CODEC_ID_PCM_S24BE:
1222 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
1224 case AV_CODEC_ID_PCM_S32BE:
1225 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
1227 case AV_CODEC_ID_PCM_F32BE:
1228 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
1230 case AV_CODEC_ID_PCM_F64BE:
1231 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
1240 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1243 char color_parameter_type[5] = { 0 };
1244 uint16_t color_primaries, color_trc, color_matrix;
1247 if (c->fc->nb_streams < 1)
1249 st = c->fc->streams[c->fc->nb_streams - 1];
1251 ret = ffio_read_size(pb, color_parameter_type, 4);
1254 if (strncmp(color_parameter_type, "nclx", 4) &&
1255 strncmp(color_parameter_type, "nclc", 4)) {
1256 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1257 color_parameter_type);
1261 color_primaries = avio_rb16(pb);
1262 color_trc = avio_rb16(pb);
1263 color_matrix = avio_rb16(pb);
1265 av_log(c->fc, AV_LOG_TRACE,
1266 "%s: pri %d trc %d matrix %d",
1267 color_parameter_type, color_primaries, color_trc, color_matrix);
1269 if (!strncmp(color_parameter_type, "nclx", 4)) {
1270 uint8_t color_range = avio_r8(pb) >> 7;
1271 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1273 st->codec->color_range = AVCOL_RANGE_JPEG;
1275 st->codec->color_range = AVCOL_RANGE_MPEG;
1276 /* 14496-12 references JPEG XR specs (rather than the more complete
1277 * 23001-8) so some adjusting is required */
1278 if (color_primaries >= AVCOL_PRI_FILM)
1279 color_primaries = AVCOL_PRI_UNSPECIFIED;
1280 if ((color_trc >= AVCOL_TRC_LINEAR &&
1281 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1282 color_trc >= AVCOL_TRC_BT2020_10)
1283 color_trc = AVCOL_TRC_UNSPECIFIED;
1284 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1285 color_matrix = AVCOL_SPC_UNSPECIFIED;
1286 st->codec->color_primaries = color_primaries;
1287 st->codec->color_trc = color_trc;
1288 st->codec->colorspace = color_matrix;
1289 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1290 /* color primaries, Table 4-4 */
1291 switch (color_primaries) {
1292 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1293 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1294 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1296 /* color transfer, Table 4-5 */
1297 switch (color_trc) {
1298 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1299 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1301 /* color matrix, Table 4-6 */
1302 switch (color_matrix) {
1303 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1304 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1305 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1308 av_log(c->fc, AV_LOG_TRACE, "\n");
1313 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1316 unsigned mov_field_order;
1317 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1319 if (c->fc->nb_streams < 1) // will happen with jp2 files
1321 st = c->fc->streams[c->fc->nb_streams-1];
1323 return AVERROR_INVALIDDATA;
1324 mov_field_order = avio_rb16(pb);
1325 if ((mov_field_order & 0xFF00) == 0x0100)
1326 decoded_field_order = AV_FIELD_PROGRESSIVE;
1327 else if ((mov_field_order & 0xFF00) == 0x0200) {
1328 switch (mov_field_order & 0xFF) {
1329 case 0x01: decoded_field_order = AV_FIELD_TT;
1331 case 0x06: decoded_field_order = AV_FIELD_BB;
1333 case 0x09: decoded_field_order = AV_FIELD_TB;
1335 case 0x0E: decoded_field_order = AV_FIELD_BT;
1339 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1340 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1342 st->codec->field_order = decoded_field_order;
1347 static int mov_realloc_extradata(AVCodecContext *codec, MOVAtom atom)
1350 uint64_t size = (uint64_t)codec->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1351 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1352 return AVERROR_INVALIDDATA;
1353 if ((err = av_reallocp(&codec->extradata, size)) < 0) {
1354 codec->extradata_size = 0;
1357 codec->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1361 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1362 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1363 AVCodecContext *codec, uint8_t *buf)
1365 int64_t result = atom.size;
1368 AV_WB32(buf , atom.size + 8);
1369 AV_WL32(buf + 4, atom.type);
1370 err = ffio_read_size(pb, buf + 8, atom.size);
1372 codec->extradata_size -= atom.size;
1374 } else if (err < atom.size) {
1375 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1376 codec->extradata_size -= atom.size - err;
1379 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1383 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1384 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1385 enum AVCodecID codec_id)
1388 uint64_t original_size;
1391 if (c->fc->nb_streams < 1) // will happen with jp2 files
1393 st = c->fc->streams[c->fc->nb_streams-1];
1395 if (st->codec->codec_id != codec_id)
1396 return 0; /* unexpected codec_id - don't mess with extradata */
1398 original_size = st->codec->extradata_size;
1399 err = mov_realloc_extradata(st->codec, atom);
1403 err = mov_read_atom_into_extradata(c, pb, atom, st->codec, st->codec->extradata + original_size);
1406 return 0; // Note: this is the original behavior to ignore truncation.
1409 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1410 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1412 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1415 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1417 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1420 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1422 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1425 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1427 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1430 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1432 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1434 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1438 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1440 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1442 if (!ret && c->fc->nb_streams >= 1) {
1443 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1444 if (avctx->extradata_size >= 40) {
1445 avctx->height = AV_RB16(&avctx->extradata[36]);
1446 avctx->width = AV_RB16(&avctx->extradata[38]);
1452 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1454 if (c->fc->nb_streams >= 1) {
1455 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1456 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1457 codec->codec_id == AV_CODEC_ID_H264 &&
1460 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1461 if (avio_rb16(pb) == 0xd4d)
1462 codec->width = 1440;
1467 return mov_read_avid(c, pb, atom);
1470 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1474 uint64_t original_size;
1475 if (c->fc->nb_streams >= 1) {
1476 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1477 if (codec->codec_id == AV_CODEC_ID_H264)
1479 if (atom.size == 16) {
1480 original_size = codec->extradata_size;
1481 ret = mov_realloc_extradata(codec, atom);
1483 length = mov_read_atom_into_extradata(c, pb, atom, codec, codec->extradata + original_size);
1484 if (length == atom.size) {
1485 const uint8_t range_value = codec->extradata[original_size + 19];
1486 switch (range_value) {
1488 codec->color_range = AVCOL_RANGE_MPEG;
1491 codec->color_range = AVCOL_RANGE_JPEG;
1494 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1497 ff_dlog(c, "color_range: %d\n", codec->color_range);
1499 /* For some reason the whole atom was not added to the extradata */
1500 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1503 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1506 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1513 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1515 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1518 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1523 if (c->fc->nb_streams < 1)
1525 st = c->fc->streams[c->fc->nb_streams-1];
1527 if ((uint64_t)atom.size > (1<<30))
1528 return AVERROR_INVALIDDATA;
1530 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1531 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1532 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1533 // pass all frma atom to codec, needed at least for QDMC and QDM2
1534 av_freep(&st->codec->extradata);
1535 ret = ff_get_extradata(st->codec, pb, atom.size);
1538 } else if (atom.size > 8) { /* to read frma, esds atoms */
1539 if (st->codec->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1541 ret = ffio_ensure_seekback(pb, 8);
1544 buffer = avio_rb64(pb);
1546 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1547 && buffer >> 32 <= atom.size
1548 && buffer >> 32 >= 8) {
1551 } else if (!st->codec->extradata_size) {
1552 #define ALAC_EXTRADATA_SIZE 36
1553 st->codec->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1554 if (!st->codec->extradata)
1555 return AVERROR(ENOMEM);
1556 st->codec->extradata_size = ALAC_EXTRADATA_SIZE;
1557 AV_WB32(st->codec->extradata , ALAC_EXTRADATA_SIZE);
1558 AV_WB32(st->codec->extradata + 4, MKTAG('a','l','a','c'));
1559 AV_WB64(st->codec->extradata + 12, buffer);
1560 avio_read(pb, st->codec->extradata + 20, 16);
1561 avio_skip(pb, atom.size - 24);
1565 if ((ret = mov_read_default(c, pb, atom)) < 0)
1568 avio_skip(pb, atom.size);
1573 * This function reads atom content and puts data in extradata without tag
1574 * nor size unlike mov_read_extradata.
1576 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1581 if (c->fc->nb_streams < 1)
1583 st = c->fc->streams[c->fc->nb_streams-1];
1585 if ((uint64_t)atom.size > (1<<30))
1586 return AVERROR_INVALIDDATA;
1588 if (atom.size >= 10) {
1589 // Broken files created by legacy versions of libavformat will
1590 // wrap a whole fiel atom inside of a glbl atom.
1591 unsigned size = avio_rb32(pb);
1592 unsigned type = avio_rl32(pb);
1593 avio_seek(pb, -8, SEEK_CUR);
1594 if (type == MKTAG('f','i','e','l') && size == atom.size)
1595 return mov_read_default(c, pb, atom);
1597 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1598 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1601 av_freep(&st->codec->extradata);
1602 ret = ff_get_extradata(st->codec, pb, atom.size);
1609 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1612 uint8_t profile_level;
1615 if (c->fc->nb_streams < 1)
1617 st = c->fc->streams[c->fc->nb_streams-1];
1619 if (atom.size >= (1<<28) || atom.size < 7)
1620 return AVERROR_INVALIDDATA;
1622 profile_level = avio_r8(pb);
1623 if ((profile_level & 0xf0) != 0xc0)
1626 avio_seek(pb, 6, SEEK_CUR);
1627 av_freep(&st->codec->extradata);
1628 ret = ff_get_extradata(st->codec, pb, atom.size - 7);
1636 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1637 * but can have extradata appended at the end after the 40 bytes belonging
1640 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1645 if (c->fc->nb_streams < 1)
1647 if (atom.size <= 40)
1649 st = c->fc->streams[c->fc->nb_streams-1];
1651 if ((uint64_t)atom.size > (1<<30))
1652 return AVERROR_INVALIDDATA;
1655 av_freep(&st->codec->extradata);
1656 ret = ff_get_extradata(st->codec, pb, atom.size - 40);
1663 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1666 MOVStreamContext *sc;
1667 unsigned int i, entries;
1669 if (c->fc->nb_streams < 1)
1671 st = c->fc->streams[c->fc->nb_streams-1];
1674 avio_r8(pb); /* version */
1675 avio_rb24(pb); /* flags */
1677 entries = avio_rb32(pb);
1682 if (sc->chunk_offsets)
1683 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1684 av_free(sc->chunk_offsets);
1685 sc->chunk_count = 0;
1686 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1687 if (!sc->chunk_offsets)
1688 return AVERROR(ENOMEM);
1689 sc->chunk_count = entries;
1691 if (atom.type == MKTAG('s','t','c','o'))
1692 for (i = 0; i < entries && !pb->eof_reached; i++)
1693 sc->chunk_offsets[i] = avio_rb32(pb);
1694 else if (atom.type == MKTAG('c','o','6','4'))
1695 for (i = 0; i < entries && !pb->eof_reached; i++)
1696 sc->chunk_offsets[i] = avio_rb64(pb);
1698 return AVERROR_INVALIDDATA;
1700 sc->chunk_count = i;
1702 if (pb->eof_reached)
1709 * Compute codec id for 'lpcm' tag.
1710 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1712 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1719 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1722 static int mov_codec_id(AVStream *st, uint32_t format)
1724 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1727 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1728 (format & 0xFFFF) == 'T' + ('S' << 8)))
1729 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1731 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1732 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1733 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1734 /* skip old asf mpeg4 tag */
1735 format && format != MKTAG('m','p','4','s')) {
1736 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1738 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1740 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1741 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1742 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1743 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1744 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1746 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1750 st->codec->codec_tag = format;
1755 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1756 AVStream *st, MOVStreamContext *sc)
1758 uint8_t codec_name[32];
1762 /* The first 16 bytes of the video sample description are already
1763 * read in ff_mov_read_stsd_entries() */
1764 stsd_start = avio_tell(pb) - 16;
1766 avio_rb16(pb); /* version */
1767 avio_rb16(pb); /* revision level */
1768 avio_rb32(pb); /* vendor */
1769 avio_rb32(pb); /* temporal quality */
1770 avio_rb32(pb); /* spatial quality */
1772 st->codec->width = avio_rb16(pb); /* width */
1773 st->codec->height = avio_rb16(pb); /* height */
1775 avio_rb32(pb); /* horiz resolution */
1776 avio_rb32(pb); /* vert resolution */
1777 avio_rb32(pb); /* data size, always 0 */
1778 avio_rb16(pb); /* frames per samples */
1780 len = avio_r8(pb); /* codec name, pascal string */
1783 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1785 avio_skip(pb, 31 - len);
1788 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1790 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1791 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1792 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1793 st->codec->width &= ~1;
1794 st->codec->height &= ~1;
1796 /* Flash Media Server uses tag H263 with Sorenson Spark */
1797 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1798 !memcmp(codec_name, "Sorenson H263", 13))
1799 st->codec->codec_id = AV_CODEC_ID_FLV1;
1801 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1803 avio_seek(pb, stsd_start, SEEK_SET);
1805 if (ff_get_qtpalette(st->codec->codec_id, pb, sc->palette)) {
1806 st->codec->bits_per_coded_sample &= 0x1F;
1807 sc->has_palette = 1;
1811 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1812 AVStream *st, MOVStreamContext *sc)
1814 int bits_per_sample, flags;
1815 uint16_t version = avio_rb16(pb);
1816 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1818 avio_rb16(pb); /* revision level */
1819 avio_rb32(pb); /* vendor */
1821 st->codec->channels = avio_rb16(pb); /* channel count */
1822 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1823 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codec->channels);
1825 sc->audio_cid = avio_rb16(pb);
1826 avio_rb16(pb); /* packet size = 0 */
1828 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1830 // Read QT version 1 fields. In version 0 these do not exist.
1831 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1833 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1836 sc->samples_per_frame = avio_rb32(pb);
1837 avio_rb32(pb); /* bytes per packet */
1838 sc->bytes_per_frame = avio_rb32(pb);
1839 avio_rb32(pb); /* bytes per sample */
1840 } else if (version == 2) {
1841 avio_rb32(pb); /* sizeof struct only */
1842 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1843 st->codec->channels = avio_rb32(pb);
1844 avio_rb32(pb); /* always 0x7F000000 */
1845 st->codec->bits_per_coded_sample = avio_rb32(pb);
1847 flags = avio_rb32(pb); /* lpcm format specific flag */
1848 sc->bytes_per_frame = avio_rb32(pb);
1849 sc->samples_per_frame = avio_rb32(pb);
1850 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1851 st->codec->codec_id =
1852 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1855 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1856 /* can't correctly handle variable sized packet as audio unit */
1857 switch (st->codec->codec_id) {
1858 case AV_CODEC_ID_MP2:
1859 case AV_CODEC_ID_MP3:
1860 st->need_parsing = AVSTREAM_PARSE_FULL;
1866 if (sc->format == 0) {
1867 if (st->codec->bits_per_coded_sample == 8)
1868 st->codec->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1869 else if (st->codec->bits_per_coded_sample == 16)
1870 st->codec->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1873 switch (st->codec->codec_id) {
1874 case AV_CODEC_ID_PCM_S8:
1875 case AV_CODEC_ID_PCM_U8:
1876 if (st->codec->bits_per_coded_sample == 16)
1877 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1879 case AV_CODEC_ID_PCM_S16LE:
1880 case AV_CODEC_ID_PCM_S16BE:
1881 if (st->codec->bits_per_coded_sample == 8)
1882 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1883 else if (st->codec->bits_per_coded_sample == 24)
1884 st->codec->codec_id =
1885 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1886 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1887 else if (st->codec->bits_per_coded_sample == 32)
1888 st->codec->codec_id =
1889 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1890 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1892 /* set values for old format before stsd version 1 appeared */
1893 case AV_CODEC_ID_MACE3:
1894 sc->samples_per_frame = 6;
1895 sc->bytes_per_frame = 2 * st->codec->channels;
1897 case AV_CODEC_ID_MACE6:
1898 sc->samples_per_frame = 6;
1899 sc->bytes_per_frame = 1 * st->codec->channels;
1901 case AV_CODEC_ID_ADPCM_IMA_QT:
1902 sc->samples_per_frame = 64;
1903 sc->bytes_per_frame = 34 * st->codec->channels;
1905 case AV_CODEC_ID_GSM:
1906 sc->samples_per_frame = 160;
1907 sc->bytes_per_frame = 33;
1913 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1914 if (bits_per_sample) {
1915 st->codec->bits_per_coded_sample = bits_per_sample;
1916 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1920 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1921 AVStream *st, MOVStreamContext *sc,
1924 // ttxt stsd contains display flags, justification, background
1925 // color, fonts, and default styles, so fake an atom to read it
1926 MOVAtom fake_atom = { .size = size };
1927 // mp4s contains a regular esds atom
1928 if (st->codec->codec_tag != AV_RL32("mp4s"))
1929 mov_read_glbl(c, pb, fake_atom);
1930 st->codec->width = sc->width;
1931 st->codec->height = sc->height;
1934 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1939 y = (ycbcr >> 16) & 0xFF;
1940 cr = (ycbcr >> 8) & 0xFF;
1943 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
1944 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
1945 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
1947 return (r << 16) | (g << 8) | b;
1950 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1952 char buf[256] = {0};
1953 uint8_t *src = st->codec->extradata;
1956 if (st->codec->extradata_size != 64)
1959 if (st->codec->width > 0 && st->codec->height > 0)
1960 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1961 st->codec->width, st->codec->height);
1962 av_strlcat(buf, "palette: ", sizeof(buf));
1964 for (i = 0; i < 16; i++) {
1965 uint32_t yuv = AV_RB32(src + i * 4);
1966 uint32_t rgba = yuv_to_rgba(yuv);
1968 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1971 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1974 av_freep(&st->codec->extradata);
1975 st->codec->extradata_size = 0;
1976 st->codec->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
1977 if (!st->codec->extradata)
1978 return AVERROR(ENOMEM);
1979 st->codec->extradata_size = strlen(buf);
1980 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1985 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1986 AVStream *st, MOVStreamContext *sc,
1991 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1992 if ((int)size != size)
1993 return AVERROR(ENOMEM);
1995 ret = ff_get_extradata(st->codec, pb, size);
1999 MOVStreamContext *tmcd_ctx = st->priv_data;
2001 val = AV_RB32(st->codec->extradata + 4);
2002 tmcd_ctx->tmcd_flags = val;
2004 st->codec->flags2 |= AV_CODEC_FLAG2_DROP_FRAME_TIMECODE;
2005 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
2006 st->codec->time_base.num = 1;
2007 /* adjust for per frame dur in counter mode */
2008 if (tmcd_ctx->tmcd_flags & 0x0008) {
2009 int timescale = AV_RB32(st->codec->extradata + 8);
2010 int framedur = AV_RB32(st->codec->extradata + 12);
2011 st->codec->time_base.den *= timescale;
2012 st->codec->time_base.num *= framedur;
2015 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
2016 uint32_t format = AV_RB32(st->codec->extradata + 22);
2017 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2018 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
2019 if (str_size > 0 && size >= (int)str_size + 26) {
2020 char *reel_name = av_malloc(str_size + 1);
2022 return AVERROR(ENOMEM);
2023 memcpy(reel_name, st->codec->extradata + 30, str_size);
2024 reel_name[str_size] = 0; /* Add null terminator */
2025 /* don't add reel_name if emtpy string */
2026 if (*reel_name == 0) {
2029 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2036 /* other codec type, just skip (rtp, mp4s ...) */
2037 avio_skip(pb, size);
2042 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2043 AVStream *st, MOVStreamContext *sc)
2045 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2046 !st->codec->sample_rate && sc->time_scale > 1)
2047 st->codec->sample_rate = sc->time_scale;
2049 /* special codec parameters handling */
2050 switch (st->codec->codec_id) {
2051 #if CONFIG_DV_DEMUXER
2052 case AV_CODEC_ID_DVAUDIO:
2053 c->dv_fctx = avformat_alloc_context();
2055 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2056 return AVERROR(ENOMEM);
2058 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2060 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2061 return AVERROR(ENOMEM);
2063 sc->dv_audio_container = 1;
2064 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
2067 /* no ifdef since parameters are always those */
2068 case AV_CODEC_ID_QCELP:
2069 st->codec->channels = 1;
2070 // force sample rate for qcelp when not stored in mov
2071 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
2072 st->codec->sample_rate = 8000;
2073 // FIXME: Why is the following needed for some files?
2074 sc->samples_per_frame = 160;
2075 if (!sc->bytes_per_frame)
2076 sc->bytes_per_frame = 35;
2078 case AV_CODEC_ID_AMR_NB:
2079 st->codec->channels = 1;
2080 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2081 st->codec->sample_rate = 8000;
2083 case AV_CODEC_ID_AMR_WB:
2084 st->codec->channels = 1;
2085 st->codec->sample_rate = 16000;
2087 case AV_CODEC_ID_MP2:
2088 case AV_CODEC_ID_MP3:
2089 /* force type after stsd for m1a hdlr */
2090 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
2092 case AV_CODEC_ID_GSM:
2093 case AV_CODEC_ID_ADPCM_MS:
2094 case AV_CODEC_ID_ADPCM_IMA_WAV:
2095 case AV_CODEC_ID_ILBC:
2096 case AV_CODEC_ID_MACE3:
2097 case AV_CODEC_ID_MACE6:
2098 case AV_CODEC_ID_QDM2:
2099 st->codec->block_align = sc->bytes_per_frame;
2101 case AV_CODEC_ID_ALAC:
2102 if (st->codec->extradata_size == 36) {
2103 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
2104 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
2107 case AV_CODEC_ID_AC3:
2108 case AV_CODEC_ID_EAC3:
2109 case AV_CODEC_ID_MPEG1VIDEO:
2110 case AV_CODEC_ID_VC1:
2111 st->need_parsing = AVSTREAM_PARSE_FULL;
2119 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2120 int codec_tag, int format,
2123 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2126 (codec_tag != format &&
2127 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2128 : codec_tag != MKTAG('j','p','e','g')))) {
2129 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2130 * export it as a separate AVStream but this needs a few changes
2131 * in the MOV demuxer, patch welcome. */
2133 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2134 avio_skip(pb, size);
2137 if ( codec_tag == AV_RL32("avc1") ||
2138 codec_tag == AV_RL32("hvc1") ||
2139 codec_tag == AV_RL32("hev1")
2141 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
2146 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2149 MOVStreamContext *sc;
2150 int pseudo_stream_id;
2152 if (c->fc->nb_streams < 1)
2154 st = c->fc->streams[c->fc->nb_streams-1];
2157 for (pseudo_stream_id = 0;
2158 pseudo_stream_id < entries && !pb->eof_reached;
2159 pseudo_stream_id++) {
2160 //Parsing Sample description table
2162 int ret, dref_id = 1;
2163 MOVAtom a = { AV_RL32("stsd") };
2164 int64_t start_pos = avio_tell(pb);
2165 int64_t size = avio_rb32(pb); /* size */
2166 uint32_t format = avio_rl32(pb); /* data format */
2169 avio_rb32(pb); /* reserved */
2170 avio_rb16(pb); /* reserved */
2171 dref_id = avio_rb16(pb);
2172 }else if (size <= 7){
2173 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
2174 return AVERROR_INVALIDDATA;
2177 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
2178 size - (avio_tell(pb) - start_pos)))
2181 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
2182 sc->dref_id= dref_id;
2183 sc->format = format;
2185 id = mov_codec_id(st, format);
2187 av_log(c->fc, AV_LOG_TRACE,
2188 "size=%"PRId64" 4CC= %c%c%c%c/0x%08x codec_type=%d\n", size,
2189 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
2190 (format >> 24) & 0xff, format, st->codec->codec_type);
2192 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
2193 st->codec->codec_id = id;
2194 mov_parse_stsd_video(c, pb, st, sc);
2195 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
2196 st->codec->codec_id = id;
2197 mov_parse_stsd_audio(c, pb, st, sc);
2198 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
2199 st->codec->codec_id = id;
2200 mov_parse_stsd_subtitle(c, pb, st, sc,
2201 size - (avio_tell(pb) - start_pos));
2203 ret = mov_parse_stsd_data(c, pb, st, sc,
2204 size - (avio_tell(pb) - start_pos));
2208 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2209 a.size = size - (avio_tell(pb) - start_pos);
2211 if ((ret = mov_read_default(c, pb, a)) < 0)
2213 } else if (a.size > 0)
2214 avio_skip(pb, a.size);
2217 if (pb->eof_reached)
2220 return mov_finalize_stsd_codec(c, pb, st, sc);
2223 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2227 avio_r8(pb); /* version */
2228 avio_rb24(pb); /* flags */
2229 entries = avio_rb32(pb);
2231 return ff_mov_read_stsd_entries(c, pb, entries);
2234 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2237 MOVStreamContext *sc;
2238 unsigned int i, entries;
2240 if (c->fc->nb_streams < 1)
2242 st = c->fc->streams[c->fc->nb_streams-1];
2245 avio_r8(pb); /* version */
2246 avio_rb24(pb); /* flags */
2248 entries = avio_rb32(pb);
2250 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2255 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2256 av_free(sc->stsc_data);
2258 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2260 return AVERROR(ENOMEM);
2262 for (i = 0; i < entries && !pb->eof_reached; i++) {
2263 sc->stsc_data[i].first = avio_rb32(pb);
2264 sc->stsc_data[i].count = avio_rb32(pb);
2265 sc->stsc_data[i].id = avio_rb32(pb);
2270 if (pb->eof_reached)
2276 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2279 MOVStreamContext *sc;
2280 unsigned i, entries;
2282 if (c->fc->nb_streams < 1)
2284 st = c->fc->streams[c->fc->nb_streams-1];
2287 avio_rb32(pb); // version + flags
2289 entries = avio_rb32(pb);
2291 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2292 av_free(sc->stps_data);
2294 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2296 return AVERROR(ENOMEM);
2298 for (i = 0; i < entries && !pb->eof_reached; i++) {
2299 sc->stps_data[i] = avio_rb32(pb);
2300 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2305 if (pb->eof_reached)
2311 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2314 MOVStreamContext *sc;
2315 unsigned int i, entries;
2317 if (c->fc->nb_streams < 1)
2319 st = c->fc->streams[c->fc->nb_streams-1];
2322 avio_r8(pb); /* version */
2323 avio_rb24(pb); /* flags */
2325 entries = avio_rb32(pb);
2327 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2331 sc->keyframe_absent = 1;
2332 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2333 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2337 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2338 if (entries >= UINT_MAX / sizeof(int))
2339 return AVERROR_INVALIDDATA;
2340 av_freep(&sc->keyframes);
2341 sc->keyframe_count = 0;
2342 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2344 return AVERROR(ENOMEM);
2346 for (i = 0; i < entries && !pb->eof_reached; i++) {
2347 sc->keyframes[i] = avio_rb32(pb);
2348 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2351 sc->keyframe_count = i;
2353 if (pb->eof_reached)
2359 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2362 MOVStreamContext *sc;
2363 unsigned int i, entries, sample_size, field_size, num_bytes;
2368 if (c->fc->nb_streams < 1)
2370 st = c->fc->streams[c->fc->nb_streams-1];
2373 avio_r8(pb); /* version */
2374 avio_rb24(pb); /* flags */
2376 if (atom.type == MKTAG('s','t','s','z')) {
2377 sample_size = avio_rb32(pb);
2378 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2379 sc->sample_size = sample_size;
2380 sc->stsz_sample_size = sample_size;
2384 avio_rb24(pb); /* reserved */
2385 field_size = avio_r8(pb);
2387 entries = avio_rb32(pb);
2389 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2391 sc->sample_count = entries;
2395 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2396 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2397 return AVERROR_INVALIDDATA;
2402 if (entries >= (UINT_MAX - 4) / field_size)
2403 return AVERROR_INVALIDDATA;
2404 if (sc->sample_sizes)
2405 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2406 av_free(sc->sample_sizes);
2407 sc->sample_count = 0;
2408 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2409 if (!sc->sample_sizes)
2410 return AVERROR(ENOMEM);
2412 num_bytes = (entries*field_size+4)>>3;
2414 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2416 av_freep(&sc->sample_sizes);
2417 return AVERROR(ENOMEM);
2420 ret = ffio_read_size(pb, buf, num_bytes);
2422 av_freep(&sc->sample_sizes);
2427 init_get_bits(&gb, buf, 8*num_bytes);
2429 for (i = 0; i < entries && !pb->eof_reached; i++) {
2430 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2431 sc->data_size += sc->sample_sizes[i];
2434 sc->sample_count = i;
2438 if (pb->eof_reached)
2444 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2447 MOVStreamContext *sc;
2448 unsigned int i, entries;
2450 int64_t total_sample_count=0;
2452 if (c->fc->nb_streams < 1)
2454 st = c->fc->streams[c->fc->nb_streams-1];
2457 avio_r8(pb); /* version */
2458 avio_rb24(pb); /* flags */
2459 entries = avio_rb32(pb);
2461 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2462 c->fc->nb_streams-1, entries);
2465 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2466 av_free(sc->stts_data);
2468 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2470 return AVERROR(ENOMEM);
2472 for (i = 0; i < entries && !pb->eof_reached; i++) {
2473 int sample_duration;
2476 sample_count=avio_rb32(pb);
2477 sample_duration = avio_rb32(pb);
2479 if (sample_count < 0) {
2480 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2481 return AVERROR_INVALIDDATA;
2483 sc->stts_data[i].count= sample_count;
2484 sc->stts_data[i].duration= sample_duration;
2486 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2487 sample_count, sample_duration);
2491 && sample_count == 1
2492 && total_sample_count > 100
2493 && sample_duration/10 > duration / total_sample_count)
2494 sample_duration = duration / total_sample_count;
2495 duration+=(int64_t)sample_duration*sample_count;
2496 total_sample_count+=sample_count;
2501 sc->duration_for_fps += duration;
2502 sc->nb_frames_for_fps += total_sample_count;
2504 if (pb->eof_reached)
2507 st->nb_frames= total_sample_count;
2509 st->duration= duration;
2510 sc->track_end = duration;
2514 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2517 if (duration == INT_MIN) {
2518 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2521 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2525 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2528 MOVStreamContext *sc;
2529 unsigned int i, entries;
2531 if (c->fc->nb_streams < 1)
2533 st = c->fc->streams[c->fc->nb_streams-1];
2536 avio_r8(pb); /* version */
2537 avio_rb24(pb); /* flags */
2538 entries = avio_rb32(pb);
2540 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2544 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2545 return AVERROR_INVALIDDATA;
2546 av_freep(&sc->ctts_data);
2547 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2549 return AVERROR(ENOMEM);
2551 for (i = 0; i < entries && !pb->eof_reached; i++) {
2552 int count =avio_rb32(pb);
2553 int duration =avio_rb32(pb);
2555 sc->ctts_data[i].count = count;
2556 sc->ctts_data[i].duration= duration;
2558 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2561 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2562 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2563 av_freep(&sc->ctts_data);
2569 mov_update_dts_shift(sc, duration);
2574 if (pb->eof_reached)
2577 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2582 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2585 MOVStreamContext *sc;
2586 unsigned int i, entries;
2588 uint32_t grouping_type;
2590 if (c->fc->nb_streams < 1)
2592 st = c->fc->streams[c->fc->nb_streams-1];
2595 version = avio_r8(pb); /* version */
2596 avio_rb24(pb); /* flags */
2597 grouping_type = avio_rl32(pb);
2598 if (grouping_type != MKTAG( 'r','a','p',' '))
2599 return 0; /* only support 'rap ' grouping */
2601 avio_rb32(pb); /* grouping_type_parameter */
2603 entries = avio_rb32(pb);
2607 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2608 av_free(sc->rap_group);
2609 sc->rap_group_count = 0;
2610 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2612 return AVERROR(ENOMEM);
2614 for (i = 0; i < entries && !pb->eof_reached; i++) {
2615 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2616 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2619 sc->rap_group_count = i;
2621 return pb->eof_reached ? AVERROR_EOF : 0;
2624 static void mov_build_index(MOVContext *mov, AVStream *st)
2626 MOVStreamContext *sc = st->priv_data;
2627 int64_t current_offset;
2628 int64_t current_dts = 0;
2629 unsigned int stts_index = 0;
2630 unsigned int stsc_index = 0;
2631 unsigned int stss_index = 0;
2632 unsigned int stps_index = 0;
2634 uint64_t stream_size = 0;
2636 if (sc->elst_count) {
2637 int i, edit_start_index = 0, unsupported = 0;
2638 int64_t empty_duration = 0; // empty duration of the first edit list entry
2639 int64_t start_time = 0; // start time of the media
2641 for (i = 0; i < sc->elst_count; i++) {
2642 const MOVElst *e = &sc->elst_data[i];
2643 if (i == 0 && e->time == -1) {
2644 /* if empty, the first entry is the start time of the stream
2645 * relative to the presentation itself */
2646 empty_duration = e->duration;
2647 edit_start_index = 1;
2648 } else if (i == edit_start_index && e->time >= 0) {
2649 start_time = e->time;
2654 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2655 "a/v desync might occur, patch welcome\n");
2657 /* adjust first dts according to edit list */
2658 if ((empty_duration || start_time) && mov->time_scale > 0) {
2660 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2661 sc->time_offset = start_time - empty_duration;
2662 current_dts = -sc->time_offset;
2663 if (sc->ctts_count>0 && sc->stts_count>0 &&
2664 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2665 /* more than 16 frames delay, dts are likely wrong
2666 this happens with files created by iMovie */
2668 st->codec->has_b_frames = 1;
2673 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2674 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2675 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2676 unsigned int current_sample = 0;
2677 unsigned int stts_sample = 0;
2678 unsigned int sample_size;
2679 unsigned int distance = 0;
2680 unsigned int rap_group_index = 0;
2681 unsigned int rap_group_sample = 0;
2682 int64_t last_dts = 0;
2683 int64_t dts_correction = 0;
2684 int rap_group_present = sc->rap_group_count && sc->rap_group;
2685 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2687 current_dts -= sc->dts_shift;
2688 last_dts = current_dts;
2690 if (!sc->sample_count || st->nb_index_entries)
2692 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2694 if (av_reallocp_array(&st->index_entries,
2695 st->nb_index_entries + sc->sample_count,
2696 sizeof(*st->index_entries)) < 0) {
2697 st->nb_index_entries = 0;
2700 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2702 for (i = 0; i < sc->chunk_count; i++) {
2703 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2704 current_offset = sc->chunk_offsets[i];
2705 while (stsc_index + 1 < sc->stsc_count &&
2706 i + 1 == sc->stsc_data[stsc_index + 1].first)
2709 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2710 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2711 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2712 sc->stsz_sample_size = sc->sample_size;
2714 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2715 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2716 sc->stsz_sample_size = sc->sample_size;
2719 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2721 if (current_sample >= sc->sample_count) {
2722 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2726 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2728 if (stss_index + 1 < sc->keyframe_count)
2730 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2732 if (stps_index + 1 < sc->stps_count)
2735 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2736 if (sc->rap_group[rap_group_index].index > 0)
2738 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2739 rap_group_sample = 0;
2743 if (sc->keyframe_absent
2745 && !rap_group_present
2746 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2750 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2751 if (sc->pseudo_stream_id == -1 ||
2752 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2753 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2754 e->pos = current_offset;
2755 e->timestamp = current_dts;
2756 e->size = sample_size;
2757 e->min_distance = distance;
2758 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2759 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2760 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2761 current_offset, current_dts, sample_size, distance, keyframe);
2762 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2763 ff_rfps_add_frame(mov->fc, st, current_dts);
2766 current_offset += sample_size;
2767 stream_size += sample_size;
2769 /* A negative sample duration is invalid based on the spec,
2770 * but some samples need it to correct the DTS. */
2771 if (sc->stts_data[stts_index].duration < 0) {
2772 av_log(mov->fc, AV_LOG_WARNING,
2773 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2774 sc->stts_data[stts_index].duration, stts_index,
2776 dts_correction += sc->stts_data[stts_index].duration - 1;
2777 sc->stts_data[stts_index].duration = 1;
2779 current_dts += sc->stts_data[stts_index].duration;
2780 if (!dts_correction || current_dts + dts_correction > last_dts) {
2781 current_dts += dts_correction;
2784 /* Avoid creating non-monotonous DTS */
2785 dts_correction += current_dts - last_dts - 1;
2786 current_dts = last_dts + 1;
2788 last_dts = current_dts;
2792 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2798 if (st->duration > 0)
2799 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2801 unsigned chunk_samples, total = 0;
2803 // compute total chunk count
2804 for (i = 0; i < sc->stsc_count; i++) {
2805 unsigned count, chunk_count;
2807 chunk_samples = sc->stsc_data[i].count;
2808 if (i != sc->stsc_count - 1 &&
2809 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2810 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2814 if (sc->samples_per_frame >= 160) { // gsm
2815 count = chunk_samples / sc->samples_per_frame;
2816 } else if (sc->samples_per_frame > 1) {
2817 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2818 count = (chunk_samples+samples-1) / samples;
2820 count = (chunk_samples+1023) / 1024;
2823 if (i < sc->stsc_count - 1)
2824 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2826 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2827 total += chunk_count * count;
2830 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2831 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2833 if (av_reallocp_array(&st->index_entries,
2834 st->nb_index_entries + total,
2835 sizeof(*st->index_entries)) < 0) {
2836 st->nb_index_entries = 0;
2839 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2842 for (i = 0; i < sc->chunk_count; i++) {
2843 current_offset = sc->chunk_offsets[i];
2844 if (stsc_index + 1 < sc->stsc_count &&
2845 i + 1 == sc->stsc_data[stsc_index + 1].first)
2847 chunk_samples = sc->stsc_data[stsc_index].count;
2849 while (chunk_samples > 0) {
2851 unsigned size, samples;
2853 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
2854 avpriv_request_sample(mov->fc,
2855 "Zero bytes per frame, but %d samples per frame",
2856 sc->samples_per_frame);
2860 if (sc->samples_per_frame >= 160) { // gsm
2861 samples = sc->samples_per_frame;
2862 size = sc->bytes_per_frame;
2864 if (sc->samples_per_frame > 1) {
2865 samples = FFMIN((1024 / sc->samples_per_frame)*
2866 sc->samples_per_frame, chunk_samples);
2867 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2869 samples = FFMIN(1024, chunk_samples);
2870 size = samples * sc->sample_size;
2874 if (st->nb_index_entries >= total) {
2875 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2878 e = &st->index_entries[st->nb_index_entries++];
2879 e->pos = current_offset;
2880 e->timestamp = current_dts;
2882 e->min_distance = 0;
2883 e->flags = AVINDEX_KEYFRAME;
2884 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2885 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2888 current_offset += size;
2889 current_dts += samples;
2890 chunk_samples -= samples;
2896 static int test_same_origin(const char *src, const char *ref) {
2906 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
2907 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
2909 if (strlen(src) == 0) {
2911 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
2912 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
2913 strlen(src_host) + 1 >= sizeof(src_host) ||
2914 strlen(ref_host) + 1 >= sizeof(ref_host)) {
2916 } else if (strcmp(src_proto, ref_proto) ||
2917 strcmp(src_auth, ref_auth) ||
2918 strcmp(src_host, ref_host) ||
2919 src_port != ref_port) {
2925 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref,
2926 AVIOInterruptCB *int_cb)
2928 AVOpenCallback open_func = c->fc->open_cb;
2931 open_func = ffio_open2_wrapper;
2933 /* try relative path, we do not try the absolute because it can leak information about our
2934 system to an attacker */
2935 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2936 char filename[1025];
2937 const char *src_path;
2940 /* find a source dir */
2941 src_path = strrchr(src, '/');
2947 /* find a next level down to target */
2948 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2949 if (ref->path[l] == '/') {
2950 if (i == ref->nlvl_to - 1)
2956 /* compose filename if next level down to target was found */
2957 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2958 memcpy(filename, src, src_path - src);
2959 filename[src_path - src] = 0;
2961 for (i = 1; i < ref->nlvl_from; i++)
2962 av_strlcat(filename, "../", sizeof(filename));
2964 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
2965 if (!c->use_absolute_path && !c->fc->open_cb) {
2966 int same_origin = test_same_origin(src, filename);
2969 av_log(c->fc, AV_LOG_ERROR,
2970 "Reference with mismatching origin, %s not tried for security reasons, "
2971 "set demuxer option use_absolute_path to allow it anyway\n",
2973 return AVERROR(ENOENT);
2976 if(strstr(ref->path + l + 1, "..") ||
2977 strstr(ref->path + l + 1, ":") ||
2978 (ref->nlvl_from > 1 && same_origin < 0) ||
2979 (filename[0] == '/' && src_path == src))
2980 return AVERROR(ENOENT);
2983 if (strlen(filename) + 1 == sizeof(filename))
2984 return AVERROR(ENOENT);
2985 if (!open_func(c->fc, pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2988 } else if (c->use_absolute_path) {
2989 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
2990 "this is a possible security issue\n");
2991 if (!open_func(c->fc, pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2993 } else if (c->fc->open_cb) {
2994 if (!open_func(c->fc, pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2997 av_log(c->fc, AV_LOG_ERROR,
2998 "Absolute path %s not tried for security reasons, "
2999 "set demuxer option use_absolute_path to allow absolute paths\n",
3003 return AVERROR(ENOENT);
3006 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3008 if (sc->time_scale <= 0) {
3009 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3010 sc->time_scale = c->time_scale;
3011 if (sc->time_scale <= 0)
3016 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3019 MOVStreamContext *sc;
3022 st = avformat_new_stream(c->fc, NULL);
3023 if (!st) return AVERROR(ENOMEM);
3024 st->id = c->fc->nb_streams;
3025 sc = av_mallocz(sizeof(MOVStreamContext));
3026 if (!sc) return AVERROR(ENOMEM);
3029 st->codec->codec_type = AVMEDIA_TYPE_DATA;
3030 sc->ffindex = st->index;
3031 c->trak_index = st->index;
3033 if ((ret = mov_read_default(c, pb, atom)) < 0)
3039 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3040 (!sc->sample_size && !sc->sample_count))) {
3041 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3046 fix_timescale(c, sc);
3048 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3050 mov_build_index(c, st);
3052 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3053 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3054 if (c->enable_drefs) {
3055 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref,
3056 &c->fc->interrupt_callback) < 0)
3057 av_log(c->fc, AV_LOG_ERROR,
3058 "stream %d, error opening alias: path='%s', dir='%s', "
3059 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3060 st->index, dref->path, dref->dir, dref->filename,
3061 dref->volume, dref->nlvl_from, dref->nlvl_to);
3063 av_log(c->fc, AV_LOG_WARNING,
3064 "Skipped opening external track: "
3065 "stream %d, alias: path='%s', dir='%s', "
3066 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3067 "Set enable_drefs to allow this.\n",
3068 st->index, dref->path, dref->dir, dref->filename,
3069 dref->volume, dref->nlvl_from, dref->nlvl_to);
3073 sc->pb_is_copied = 1;
3076 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3077 if (!st->sample_aspect_ratio.num && st->codec->width && st->codec->height &&
3078 sc->height && sc->width &&
3079 (st->codec->width != sc->width || st->codec->height != sc->height)) {
3080 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
3081 ((double)st->codec->width * sc->height), INT_MAX);
3084 #if FF_API_R_FRAME_RATE
3085 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3086 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3087 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3091 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3092 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
3093 TAG_IS_AVCI(st->codec->codec_tag)) {
3094 ret = ff_generate_avci_extradata(st);
3099 switch (st->codec->codec_id) {
3100 #if CONFIG_H261_DECODER
3101 case AV_CODEC_ID_H261:
3103 #if CONFIG_H263_DECODER
3104 case AV_CODEC_ID_H263:
3106 #if CONFIG_MPEG4_DECODER
3107 case AV_CODEC_ID_MPEG4:
3109 st->codec->width = 0; /* let decoder init width/height */
3110 st->codec->height= 0;
3114 // If the duration of the mp3 packets is not constant, then they could need a parser
3115 if (st->codec->codec_id == AV_CODEC_ID_MP3
3116 && sc->stts_count > 3
3117 && sc->stts_count*10 > st->nb_frames
3118 && sc->time_scale == st->codec->sample_rate) {
3119 st->need_parsing = AVSTREAM_PARSE_FULL;
3121 /* Do not need those anymore. */
3122 av_freep(&sc->chunk_offsets);
3123 av_freep(&sc->stsc_data);
3124 av_freep(&sc->sample_sizes);
3125 av_freep(&sc->keyframes);
3126 av_freep(&sc->stts_data);
3127 av_freep(&sc->stps_data);
3128 av_freep(&sc->elst_data);
3129 av_freep(&sc->rap_group);
3134 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3137 c->itunes_metadata = 1;
3138 ret = mov_read_default(c, pb, atom);
3139 c->itunes_metadata = 0;
3143 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3152 count = avio_rb32(pb);
3153 if (count > UINT_MAX / sizeof(*c->meta_keys)) {
3154 av_log(c->fc, AV_LOG_ERROR,
3155 "The 'keys' atom with the invalid key count: %d\n", count);
3156 return AVERROR_INVALIDDATA;
3159 c->meta_keys_count = count + 1;
3160 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3162 return AVERROR(ENOMEM);
3164 for (i = 1; i <= count; ++i) {
3165 uint32_t key_size = avio_rb32(pb);
3166 uint32_t type = avio_rl32(pb);
3168 av_log(c->fc, AV_LOG_ERROR,
3169 "The key# %d in meta has invalid size: %d\n", i, key_size);
3170 return AVERROR_INVALIDDATA;
3173 if (type != MKTAG('m','d','t','a')) {
3174 avio_skip(pb, key_size);
3176 c->meta_keys[i] = av_mallocz(key_size + 1);
3177 if (!c->meta_keys[i])
3178 return AVERROR(ENOMEM);
3179 avio_read(pb, c->meta_keys[i], key_size);
3185 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
3187 int64_t end = avio_tell(pb) + size;
3188 uint8_t *key = NULL, *val = NULL;
3191 MOVStreamContext *sc;
3193 if (c->fc->nb_streams < 1)
3195 st = c->fc->streams[c->fc->nb_streams-1];
3198 for (i = 0; i < 2; i++) {
3203 if (end - avio_tell(pb) <= 12)
3206 len = avio_rb32(pb);
3207 tag = avio_rl32(pb);
3208 avio_skip(pb, 4); // flags
3210 if (len < 12 || len - 12 > end - avio_tell(pb))
3214 if (tag == MKTAG('n', 'a', 'm', 'e'))
3216 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3223 *p = av_malloc(len + 1);
3226 ret = ffio_read_size(pb, *p, len);
3235 if (strcmp(key, "iTunSMPB") == 0) {
3236 int priming, remainder, samples;
3237 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3238 if(priming>0 && priming<16384)
3239 sc->start_pad = priming;
3242 if (strcmp(key, "cdec") != 0) {
3243 av_dict_set(&c->fc->metadata, key, val,
3244 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3249 avio_seek(pb, end, SEEK_SET);
3255 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3257 int64_t end = avio_tell(pb) + atom.size;
3263 len = avio_rb32(pb);
3264 tag = avio_rl32(pb);
3266 if (len > atom.size)
3269 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
3270 uint8_t domain[128];
3273 avio_skip(pb, 4); // flags
3276 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
3277 avio_skip(pb, len - domain_len);
3278 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
3282 av_log(c->fc, AV_LOG_VERBOSE,
3283 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3287 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3289 while (atom.size > 8) {
3290 uint32_t tag = avio_rl32(pb);
3292 if (tag == MKTAG('h','d','l','r')) {
3293 avio_seek(pb, -8, SEEK_CUR);
3295 return mov_read_default(c, pb, atom);
3301 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3306 int display_matrix[3][3];
3308 MOVStreamContext *sc;
3312 if (c->fc->nb_streams < 1)
3314 st = c->fc->streams[c->fc->nb_streams-1];
3317 version = avio_r8(pb);
3318 flags = avio_rb24(pb);
3319 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3325 avio_rb32(pb); /* creation time */
3326 avio_rb32(pb); /* modification time */
3328 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3329 avio_rb32(pb); /* reserved */
3331 /* highlevel (considering edits) duration in movie timebase */
3332 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3333 avio_rb32(pb); /* reserved */
3334 avio_rb32(pb); /* reserved */
3336 avio_rb16(pb); /* layer */
3337 avio_rb16(pb); /* alternate group */
3338 avio_rb16(pb); /* volume */
3339 avio_rb16(pb); /* reserved */
3341 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3342 // they're kept in fixed point format through all calculations
3343 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3344 // side data, but the scale factor is not needed to calculate aspect ratio
3345 for (i = 0; i < 3; i++) {
3346 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3347 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3348 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
3351 width = avio_rb32(pb); // 16.16 fixed point track width
3352 height = avio_rb32(pb); // 16.16 fixed point track height
3353 sc->width = width >> 16;
3354 sc->height = height >> 16;
3356 // save the matrix and add rotate metadata when it is not the default
3358 if (display_matrix[0][0] != (1 << 16) ||
3359 display_matrix[1][1] != (1 << 16) ||
3360 display_matrix[2][2] != (1 << 30) ||
3361 display_matrix[0][1] || display_matrix[0][2] ||
3362 display_matrix[1][0] || display_matrix[1][2] ||
3363 display_matrix[2][0] || display_matrix[2][1]) {
3367 av_freep(&sc->display_matrix);
3368 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
3369 if (!sc->display_matrix)
3370 return AVERROR(ENOMEM);
3372 for (i = 0; i < 3; i++)
3373 for (j = 0; j < 3; j++)
3374 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
3376 rotate = av_display_rotation_get(sc->display_matrix);
3377 if (!isnan(rotate)) {
3378 char rotate_buf[64];
3380 if (rotate < 0) // for backward compatibility
3382 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
3383 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
3387 // transform the display width/height according to the matrix
3388 // to keep the same scale, use [width height 1<<16]
3389 if (width && height && sc->display_matrix) {
3390 double disp_transform[2];
3392 for (i = 0; i < 2; i++)
3393 disp_transform[i] = hypot(display_matrix[i][0], display_matrix[i][1]);
3395 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
3396 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
3397 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
3398 st->sample_aspect_ratio = av_d2q(
3399 disp_transform[0] / disp_transform[1],
3405 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3407 MOVFragment *frag = &c->fragment;
3408 MOVTrackExt *trex = NULL;
3409 MOVFragmentIndex* index = NULL;
3410 int flags, track_id, i, found = 0;
3412 avio_r8(pb); /* version */
3413 flags = avio_rb24(pb);
3415 track_id = avio_rb32(pb);
3417 return AVERROR_INVALIDDATA;
3418 frag->track_id = track_id;
3419 for (i = 0; i < c->trex_count; i++)
3420 if (c->trex_data[i].track_id == frag->track_id) {
3421 trex = &c->trex_data[i];
3425 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3426 return AVERROR_INVALIDDATA;
3429 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3430 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3431 frag->moof_offset : frag->implicit_offset;
3432 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3434 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3435 avio_rb32(pb) : trex->duration;
3436 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3437 avio_rb32(pb) : trex->size;
3438 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3439 avio_rb32(pb) : trex->flags;
3440 frag->time = AV_NOPTS_VALUE;
3441 for (i = 0; i < c->fragment_index_count; i++) {
3443 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3444 if (candidate->track_id == frag->track_id) {
3445 av_log(c->fc, AV_LOG_DEBUG,
3446 "found fragment index for track %u\n", frag->track_id);
3448 for (j = index->current_item; j < index->item_count; j++) {
3449 if (frag->implicit_offset == index->items[j].moof_offset) {
3450 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3451 "for track %u and moof_offset %"PRId64"\n",
3452 frag->track_id, index->items[j].moof_offset);
3453 frag->time = index->items[j].time;
3454 index->current_item = j + 1;
3463 if (index && !found) {
3464 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
3465 "it doesn't have an (in-order) entry for moof_offset "
3466 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3468 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3472 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3474 c->chapter_track = avio_rb32(pb);
3478 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3483 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3484 return AVERROR_INVALIDDATA;
3485 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3486 sizeof(*c->trex_data))) < 0) {
3491 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3493 trex = &c->trex_data[c->trex_count++];
3494 avio_r8(pb); /* version */
3495 avio_rb24(pb); /* flags */
3496 trex->track_id = avio_rb32(pb);
3497 trex->stsd_id = avio_rb32(pb);
3498 trex->duration = avio_rb32(pb);
3499 trex->size = avio_rb32(pb);
3500 trex->flags = avio_rb32(pb);
3504 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3506 MOVFragment *frag = &c->fragment;
3507 AVStream *st = NULL;
3508 MOVStreamContext *sc;
3511 for (i = 0; i < c->fc->nb_streams; i++) {
3512 if (c->fc->streams[i]->id == frag->track_id) {
3513 st = c->fc->streams[i];
3518 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3519 return AVERROR_INVALIDDATA;
3522 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3524 version = avio_r8(pb);
3525 avio_rb24(pb); /* flags */
3527 sc->track_end = avio_rb64(pb);
3529 sc->track_end = avio_rb32(pb);
3534 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3536 MOVFragment *frag = &c->fragment;
3537 AVStream *st = NULL;
3538 MOVStreamContext *sc;
3542 int data_offset = 0;
3543 unsigned entries, first_sample_flags = frag->flags;
3544 int flags, distance, i, err;
3546 for (i = 0; i < c->fc->nb_streams; i++) {
3547 if (c->fc->streams[i]->id == frag->track_id) {
3548 st = c->fc->streams[i];
3553 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3554 return AVERROR_INVALIDDATA;
3557 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3559 avio_r8(pb); /* version */
3560 flags = avio_rb24(pb);
3561 entries = avio_rb32(pb);
3562 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3564 /* Always assume the presence of composition time offsets.
3565 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3566 * 1) in the initial movie, there are no samples.
3567 * 2) in the first movie fragment, there is only one sample without composition time offset.
3568 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3569 if (!sc->ctts_count && sc->sample_count)
3571 /* Complement ctts table if moov atom doesn't have ctts atom. */
3572 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3574 return AVERROR(ENOMEM);
3575 sc->ctts_data = ctts_data;
3576 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3577 sc->ctts_data[sc->ctts_count].duration = 0;
3580 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3581 return AVERROR_INVALIDDATA;
3582 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3583 sizeof(*sc->ctts_data))) < 0) {
3587 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3588 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3589 dts = sc->track_end - sc->time_offset;
3590 offset = frag->base_data_offset + data_offset;
3592 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3593 for (i = 0; i < entries && !pb->eof_reached; i++) {
3594 unsigned sample_size = frag->size;
3595 int sample_flags = i ? frag->flags : first_sample_flags;
3596 unsigned sample_duration = frag->duration;
3599 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3600 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3601 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3602 sc->ctts_data[sc->ctts_count].count = 1;
3603 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3605 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3606 if (frag->time != AV_NOPTS_VALUE) {
3607 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3608 int64_t pts = frag->time;
3609 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3610 " sc->dts_shift %d ctts.duration %d"
3611 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3612 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3613 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3614 dts = pts - sc->dts_shift;
3615 if (flags & MOV_TRUN_SAMPLE_CTS) {
3616 dts -= sc->ctts_data[sc->ctts_count].duration;
3618 dts -= sc->time_offset;
3620 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3623 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3624 ", using it for dts\n", dts);
3626 frag->time = AV_NOPTS_VALUE;
3629 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3633 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3634 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3637 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3638 keyframe ? AVINDEX_KEYFRAME : 0);
3640 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3642 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3643 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3644 offset, dts, sample_size, distance, keyframe);
3646 dts += sample_duration;
3647 offset += sample_size;
3648 sc->data_size += sample_size;
3649 sc->duration_for_fps += sample_duration;
3650 sc->nb_frames_for_fps ++;
3653 if (pb->eof_reached)
3656 frag->implicit_offset = offset;
3658 sc->track_end = dts + sc->time_offset;
3659 if (st->duration < sc->track_end)
3660 st->duration = sc->track_end;
3665 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3667 int64_t offset = avio_tell(pb) + atom.size, pts;
3669 unsigned i, track_id;
3670 AVStream *st = NULL;
3671 MOVStreamContext *sc;
3672 MOVFragmentIndex *index = NULL;
3673 MOVFragmentIndex **tmp;
3674 AVRational timescale;
3676 version = avio_r8(pb);
3678 avpriv_request_sample(c->fc, "sidx version %u", version);
3679 return AVERROR_PATCHWELCOME;
3682 avio_rb24(pb); // flags
3684 track_id = avio_rb32(pb); // Reference ID
3685 for (i = 0; i < c->fc->nb_streams; i++) {
3686 if (c->fc->streams[i]->id == track_id) {
3687 st = c->fc->streams[i];
3692 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", track_id);
3693 return AVERROR_INVALIDDATA;
3698 timescale = av_make_q(1, avio_rb32(pb));
3701 pts = avio_rb32(pb);
3702 offset += avio_rb32(pb);
3704 pts = avio_rb64(pb);
3705 offset += avio_rb64(pb);
3708 avio_rb16(pb); // reserved
3710 index = av_mallocz(sizeof(MOVFragmentIndex));
3712 return AVERROR(ENOMEM);
3714 index->track_id = track_id;
3716 index->item_count = avio_rb16(pb);
3717 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
3719 if (!index->items) {
3721 return AVERROR(ENOMEM);
3724 for (i = 0; i < index->item_count; i++) {
3725 uint32_t size = avio_rb32(pb);
3726 uint32_t duration = avio_rb32(pb);
3727 if (size & 0x80000000) {
3728 avpriv_request_sample(c->fc, "sidx reference_type 1");
3729 av_freep(&index->items);
3731 return AVERROR_PATCHWELCOME;
3733 avio_rb32(pb); // sap_flags
3734 index->items[i].moof_offset = offset;
3735 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
3740 st->duration = sc->track_end = pts;
3742 tmp = av_realloc_array(c->fragment_index_data,
3743 c->fragment_index_count + 1,
3744 sizeof(MOVFragmentIndex*));
3746 av_freep(&index->items);
3748 return AVERROR(ENOMEM);
3751 c->fragment_index_data = tmp;
3752 c->fragment_index_data[c->fragment_index_count++] = index;
3754 if (offset == avio_size(pb))
3755 c->fragment_index_complete = 1;
3760 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3761 /* like the files created with Adobe Premiere 5.0, for samples see */
3762 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3763 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3768 return 0; /* continue */
3769 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3770 avio_skip(pb, atom.size - 4);
3773 atom.type = avio_rl32(pb);
3775 if (atom.type != MKTAG('m','d','a','t')) {
3776 avio_skip(pb, atom.size);
3779 err = mov_read_mdat(c, pb, atom);
3783 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3788 uint8_t *moov_data; /* uncompressed data */
3789 long cmov_len, moov_len;
3792 avio_rb32(pb); /* dcom atom */
3793 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3794 return AVERROR_INVALIDDATA;
3795 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3796 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3797 return AVERROR_INVALIDDATA;
3799 avio_rb32(pb); /* cmvd atom */
3800 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3801 return AVERROR_INVALIDDATA;
3802 moov_len = avio_rb32(pb); /* uncompressed size */
3803 cmov_len = atom.size - 6 * 4;
3805 cmov_data = av_malloc(cmov_len);
3807 return AVERROR(ENOMEM);
3808 moov_data = av_malloc(moov_len);
3811 return AVERROR(ENOMEM);
3813 ret = ffio_read_size(pb, cmov_data, cmov_len);
3815 goto free_and_return;
3817 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3818 goto free_and_return;
3819 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3820 goto free_and_return;
3821 ctx.seekable = AVIO_SEEKABLE_NORMAL;
3822 atom.type = MKTAG('m','o','o','v');
3823 atom.size = moov_len;
3824 ret = mov_read_default(c, &ctx, atom);
3830 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3831 return AVERROR(ENOSYS);
3835 /* edit list atom */
3836 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3838 MOVStreamContext *sc;
3839 int i, edit_count, version;
3841 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3843 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3845 version = avio_r8(pb); /* version */
3846 avio_rb24(pb); /* flags */
3847 edit_count = avio_rb32(pb); /* entries */
3852 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3853 av_free(sc->elst_data);
3855 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3857 return AVERROR(ENOMEM);
3859 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3860 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3861 MOVElst *e = &sc->elst_data[i];
3864 e->duration = avio_rb64(pb);
3865 e->time = avio_rb64(pb);
3867 e->duration = avio_rb32(pb); /* segment duration */
3868 e->time = (int32_t)avio_rb32(pb); /* media time */
3870 e->rate = avio_rb32(pb) / 65536.0;
3871 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3872 e->duration, e->time, e->rate);
3879 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3881 MOVStreamContext *sc;
3883 if (c->fc->nb_streams < 1)
3884 return AVERROR_INVALIDDATA;
3885 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3886 sc->timecode_track = avio_rb32(pb);
3890 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3894 static const uint8_t uuid_isml_manifest[] = {
3895 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3896 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3899 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3900 return AVERROR_INVALIDDATA;
3902 ret = avio_read(pb, uuid, sizeof(uuid));
3905 } else if (ret != sizeof(uuid)) {
3906 return AVERROR_INVALIDDATA;
3908 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3909 uint8_t *buffer, *ptr;
3911 size_t len = atom.size - sizeof(uuid);
3914 return AVERROR_INVALIDDATA;
3916 ret = avio_skip(pb, 4); // zeroes
3919 buffer = av_mallocz(len + 1);
3921 return AVERROR(ENOMEM);
3923 ret = avio_read(pb, buffer, len);
3927 } else if (ret != len) {
3929 return AVERROR_INVALIDDATA;
3933 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3934 ptr += sizeof("systemBitrate=\"") - 1;
3935 c->bitrates_count++;
3936 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3938 c->bitrates_count = 0;
3940 return AVERROR(ENOMEM);
3943 ret = strtol(ptr, &endptr, 10);
3944 if (ret < 0 || errno || *endptr != '"') {
3945 c->bitrates[c->bitrates_count - 1] = 0;
3947 c->bitrates[c->bitrates_count - 1] = ret;
3956 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3959 uint8_t content[16];
3964 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3970 && !memcmp(content, "Anevia\x1A\x1A", 8)
3971 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3972 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3978 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3980 uint32_t format = avio_rl32(pb);
3981 MOVStreamContext *sc;
3985 if (c->fc->nb_streams < 1)
3987 st = c->fc->streams[c->fc->nb_streams - 1];
3992 case MKTAG('e','n','c','v'): // encrypted video
3993 case MKTAG('e','n','c','a'): // encrypted audio
3994 id = mov_codec_id(st, format);
3995 if (st->codec->codec_id != AV_CODEC_ID_NONE &&
3996 st->codec->codec_id != id) {
3997 av_log(c->fc, AV_LOG_WARNING,
3998 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
3999 (char*)&format, st->codec->codec_id);
4003 st->codec->codec_id = id;
4004 sc->format = format;
4008 av_log(c->fc, AV_LOG_WARNING,
4009 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4010 (char*)&format, (char*)&sc->format);
4017 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4020 MOVStreamContext *sc;
4021 size_t auxiliary_info_size;
4023 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4026 st = c->fc->streams[c->fc->nb_streams - 1];
4029 if (sc->cenc.aes_ctr) {
4030 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
4031 return AVERROR_INVALIDDATA;
4034 avio_r8(pb); /* version */
4035 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
4037 avio_rb32(pb); /* entries */
4039 if (atom.size < 8) {
4040 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" too small\n", atom.size);
4041 return AVERROR_INVALIDDATA;
4044 /* save the auxiliary info as is */
4045 auxiliary_info_size = atom.size - 8;
4047 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
4048 if (!sc->cenc.auxiliary_info) {
4049 return AVERROR(ENOMEM);
4052 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
4054 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
4056 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
4057 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
4058 return AVERROR_INVALIDDATA;
4061 /* initialize the cipher */
4062 sc->cenc.aes_ctr = av_aes_ctr_alloc();
4063 if (!sc->cenc.aes_ctr) {
4064 return AVERROR(ENOMEM);
4067 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
4070 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, uint8_t *input, int size)
4072 uint32_t encrypted_bytes;
4073 uint16_t subsample_count;
4074 uint16_t clear_bytes;
4075 uint8_t* input_end = input + size;
4078 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4079 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
4080 return AVERROR_INVALIDDATA;
4083 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
4084 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
4086 if (!sc->cenc.use_subsamples)
4088 /* decrypt the whole packet */
4089 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
4093 /* read the subsample count */
4094 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4095 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
4096 return AVERROR_INVALIDDATA;
4099 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
4100 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4102 for (; subsample_count > 0; subsample_count--)
4104 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4105 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
4106 return AVERROR_INVALIDDATA;
4109 /* read the number of clear / encrypted bytes */
4110 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
4111 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4112 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
4113 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
4115 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
4116 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
4117 return AVERROR_INVALIDDATA;
4120 /* skip the clear bytes */
4121 input += clear_bytes;
4123 /* decrypt the encrypted bytes */
4124 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
4125 input += encrypted_bytes;
4128 if (input < input_end) {
4129 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
4130 return AVERROR_INVALIDDATA;
4136 static const MOVParseTableEntry mov_default_parse_table[] = {
4137 { MKTAG('A','C','L','R'), mov_read_aclr },
4138 { MKTAG('A','P','R','G'), mov_read_avid },
4139 { MKTAG('A','A','L','P'), mov_read_avid },
4140 { MKTAG('A','R','E','S'), mov_read_ares },
4141 { MKTAG('a','v','s','s'), mov_read_avss },
4142 { MKTAG('c','h','p','l'), mov_read_chpl },
4143 { MKTAG('c','o','6','4'), mov_read_stco },
4144 { MKTAG('c','o','l','r'), mov_read_colr },
4145 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
4146 { MKTAG('d','i','n','f'), mov_read_default },
4147 { MKTAG('D','p','x','E'), mov_read_dpxe },
4148 { MKTAG('d','r','e','f'), mov_read_dref },
4149 { MKTAG('e','d','t','s'), mov_read_default },
4150 { MKTAG('e','l','s','t'), mov_read_elst },
4151 { MKTAG('e','n','d','a'), mov_read_enda },
4152 { MKTAG('f','i','e','l'), mov_read_fiel },
4153 { MKTAG('a','d','r','m'), mov_read_adrm },
4154 { MKTAG('f','t','y','p'), mov_read_ftyp },
4155 { MKTAG('g','l','b','l'), mov_read_glbl },
4156 { MKTAG('h','d','l','r'), mov_read_hdlr },
4157 { MKTAG('i','l','s','t'), mov_read_ilst },
4158 { MKTAG('j','p','2','h'), mov_read_jp2h },
4159 { MKTAG('m','d','a','t'), mov_read_mdat },
4160 { MKTAG('m','d','h','d'), mov_read_mdhd },
4161 { MKTAG('m','d','i','a'), mov_read_default },
4162 { MKTAG('m','e','t','a'), mov_read_meta },
4163 { MKTAG('m','i','n','f'), mov_read_default },
4164 { MKTAG('m','o','o','f'), mov_read_moof },
4165 { MKTAG('m','o','o','v'), mov_read_moov },
4166 { MKTAG('m','v','e','x'), mov_read_default },
4167 { MKTAG('m','v','h','d'), mov_read_mvhd },
4168 { MKTAG('S','M','I',' '), mov_read_svq3 },
4169 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
4170 { MKTAG('a','v','c','C'), mov_read_glbl },
4171 { MKTAG('p','a','s','p'), mov_read_pasp },
4172 { MKTAG('s','i','d','x'), mov_read_sidx },
4173 { MKTAG('s','t','b','l'), mov_read_default },
4174 { MKTAG('s','t','c','o'), mov_read_stco },
4175 { MKTAG('s','t','p','s'), mov_read_stps },
4176 { MKTAG('s','t','r','f'), mov_read_strf },
4177 { MKTAG('s','t','s','c'), mov_read_stsc },
4178 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
4179 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
4180 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
4181 { MKTAG('s','t','t','s'), mov_read_stts },
4182 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
4183 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
4184 { MKTAG('t','f','d','t'), mov_read_tfdt },
4185 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
4186 { MKTAG('t','r','a','k'), mov_read_trak },
4187 { MKTAG('t','r','a','f'), mov_read_default },
4188 { MKTAG('t','r','e','f'), mov_read_default },
4189 { MKTAG('t','m','c','d'), mov_read_tmcd },
4190 { MKTAG('c','h','a','p'), mov_read_chap },
4191 { MKTAG('t','r','e','x'), mov_read_trex },
4192 { MKTAG('t','r','u','n'), mov_read_trun },
4193 { MKTAG('u','d','t','a'), mov_read_default },
4194 { MKTAG('w','a','v','e'), mov_read_wave },
4195 { MKTAG('e','s','d','s'), mov_read_esds },
4196 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
4197 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
4198 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
4199 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
4200 { MKTAG('w','f','e','x'), mov_read_wfex },
4201 { MKTAG('c','m','o','v'), mov_read_cmov },
4202 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
4203 { MKTAG('d','v','c','1'), mov_read_dvc1 },
4204 { MKTAG('s','b','g','p'), mov_read_sbgp },
4205 { MKTAG('h','v','c','C'), mov_read_glbl },
4206 { MKTAG('u','u','i','d'), mov_read_uuid },
4207 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
4208 { MKTAG('f','r','e','e'), mov_read_free },
4209 { MKTAG('-','-','-','-'), mov_read_custom },
4210 { MKTAG('s','i','n','f'), mov_read_default },
4211 { MKTAG('f','r','m','a'), mov_read_frma },
4212 { MKTAG('s','e','n','c'), mov_read_senc },
4216 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4218 int64_t total_size = 0;
4222 if (c->atom_depth > 10) {
4223 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
4224 return AVERROR_INVALIDDATA;
4229 atom.size = INT64_MAX;
4230 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
4231 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
4234 if (atom.size >= 8) {
4235 a.size = avio_rb32(pb);
4236 a.type = avio_rl32(pb);
4237 if (a.type == MKTAG('f','r','e','e') &&
4241 uint32_t *type = (uint32_t *)buf + 1;
4242 if (avio_read(pb, buf, 8) != 8)
4243 return AVERROR_INVALIDDATA;
4244 avio_seek(pb, -8, SEEK_CUR);
4245 if (*type == MKTAG('m','v','h','d') ||
4246 *type == MKTAG('c','m','o','v')) {
4247 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
4248 a.type = MKTAG('m','o','o','v');
4251 if (atom.type != MKTAG('r','o','o','t') &&
4252 atom.type != MKTAG('m','o','o','v'))
4254 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
4256 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
4263 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
4264 a.size = avio_rb64(pb) - 8;
4268 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
4269 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
4271 a.size = atom.size - total_size + 8;
4276 a.size = FFMIN(a.size, atom.size - total_size);
4278 for (i = 0; mov_default_parse_table[i].type; i++)
4279 if (mov_default_parse_table[i].type == a.type) {
4280 parse = mov_default_parse_table[i].parse;
4284 // container is user data
4285 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
4286 atom.type == MKTAG('i','l','s','t')))
4287 parse = mov_read_udta_string;
4289 // Supports parsing the QuickTime Metadata Keys.
4290 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
4291 if (!parse && c->found_hdlr_mdta &&
4292 atom.type == MKTAG('m','e','t','a') &&
4293 a.type == MKTAG('k','e','y','s')) {
4294 parse = mov_read_keys;
4297 if (!parse) { /* skip leaf atoms data */
4298 avio_skip(pb, a.size);
4300 int64_t start_pos = avio_tell(pb);
4302 int err = parse(c, pb, a);
4307 if (c->found_moov && c->found_mdat &&
4308 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
4309 start_pos + a.size == avio_size(pb))) {
4310 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
4311 c->next_root_atom = start_pos + a.size;
4315 left = a.size - avio_tell(pb) + start_pos;
4316 if (left > 0) /* skip garbage at atom end */
4317 avio_skip(pb, left);
4318 else if (left < 0) {
4319 av_log(c->fc, AV_LOG_WARNING,
4320 "overread end of atom '%.4s' by %"PRId64" bytes\n",
4321 (char*)&a.type, -left);
4322 avio_seek(pb, left, SEEK_CUR);
4326 total_size += a.size;
4329 if (total_size < atom.size && atom.size < 0x7ffff)
4330 avio_skip(pb, atom.size - total_size);
4336 static int mov_probe(AVProbeData *p)
4341 int moov_offset = -1;
4343 /* check file header */
4346 /* ignore invalid offset */
4347 if ((offset + 8) > (unsigned int)p->buf_size)
4349 tag = AV_RL32(p->buf + offset + 4);
4351 /* check for obvious tags */
4352 case MKTAG('m','o','o','v'):
4353 moov_offset = offset + 4;
4354 case MKTAG('m','d','a','t'):
4355 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
4356 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
4357 case MKTAG('f','t','y','p'):
4358 if (AV_RB32(p->buf+offset) < 8 &&
4359 (AV_RB32(p->buf+offset) != 1 ||
4360 offset + 12 > (unsigned int)p->buf_size ||
4361 AV_RB64(p->buf+offset + 8) == 0)) {
4362 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4363 } else if (tag == MKTAG('f','t','y','p') &&
4364 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
4365 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
4367 score = FFMAX(score, 5);
4369 score = AVPROBE_SCORE_MAX;
4371 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4373 /* those are more common words, so rate then a bit less */
4374 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
4375 case MKTAG('w','i','d','e'):
4376 case MKTAG('f','r','e','e'):
4377 case MKTAG('j','u','n','k'):
4378 case MKTAG('p','i','c','t'):
4379 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
4380 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4382 case MKTAG(0x82,0x82,0x7f,0x7d):
4383 case MKTAG('s','k','i','p'):
4384 case MKTAG('u','u','i','d'):
4385 case MKTAG('p','r','f','l'):
4386 /* if we only find those cause probedata is too small at least rate them */
4387 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4388 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4391 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4394 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
4395 /* moov atom in the header - we should make sure that this is not a
4396 * MOV-packed MPEG-PS */
4397 offset = moov_offset;
4399 while(offset < (p->buf_size - 16)){ /* Sufficient space */
4400 /* We found an actual hdlr atom */
4401 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
4402 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
4403 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
4404 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
4405 /* We found a media handler reference atom describing an
4406 * MPEG-PS-in-MOV, return a
4407 * low score to force expanding the probe window until
4408 * mpegps_probe finds what it needs */
4419 // must be done after parsing all trak because there's no order requirement
4420 static void mov_read_chapters(AVFormatContext *s)
4422 MOVContext *mov = s->priv_data;
4423 AVStream *st = NULL;
4424 MOVStreamContext *sc;
4428 for (i = 0; i < s->nb_streams; i++)
4429 if (s->streams[i]->id == mov->chapter_track) {
4434 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
4438 st->discard = AVDISCARD_ALL;
4440 cur_pos = avio_tell(sc->pb);
4442 for (i = 0; i < st->nb_index_entries; i++) {
4443 AVIndexEntry *sample = &st->index_entries[i];
4444 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
4449 if (end < sample->timestamp) {
4450 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
4451 end = AV_NOPTS_VALUE;
4454 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4455 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
4459 // the first two bytes are the length of the title
4460 len = avio_rb16(sc->pb);
4461 if (len > sample->size-2)
4463 title_len = 2*len + 1;
4464 if (!(title = av_mallocz(title_len)))
4467 // The samples could theoretically be in any encoding if there's an encd
4468 // atom following, but in practice are only utf-8 or utf-16, distinguished
4469 // instead by the presence of a BOM
4473 ch = avio_rb16(sc->pb);
4475 avio_get_str16be(sc->pb, len, title, title_len);
4476 else if (ch == 0xfffe)
4477 avio_get_str16le(sc->pb, len, title, title_len);
4480 if (len == 1 || len == 2)
4483 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
4487 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
4491 avio_seek(sc->pb, cur_pos, SEEK_SET);
4494 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
4495 uint32_t value, int flags)
4498 char buf[AV_TIMECODE_STR_SIZE];
4499 AVRational rate = {st->codec->time_base.den,
4500 st->codec->time_base.num};
4501 int ret = av_timecode_init(&tc, rate, flags, 0, s);
4504 av_dict_set(&st->metadata, "timecode",
4505 av_timecode_make_string(&tc, buf, value), 0);
4509 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
4511 MOVStreamContext *sc = st->priv_data;
4513 int64_t cur_pos = avio_tell(sc->pb);
4516 if (!st->nb_index_entries)
4519 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
4520 value = avio_rb32(s->pb);
4522 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
4523 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
4524 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
4526 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
4527 * not the case) and thus assume "frame number format" instead of QT one.
4528 * No sample with tmcd track can be found with a QT timecode at the moment,
4529 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
4531 parse_timecode_in_framenum_format(s, st, value, flags);
4533 avio_seek(sc->pb, cur_pos, SEEK_SET);
4537 static int mov_read_close(AVFormatContext *s)
4539 MOVContext *mov = s->priv_data;
4542 for (i = 0; i < s->nb_streams; i++) {
4543 AVStream *st = s->streams[i];
4544 MOVStreamContext *sc = st->priv_data;
4549 av_freep(&sc->ctts_data);
4550 for (j = 0; j < sc->drefs_count; j++) {
4551 av_freep(&sc->drefs[j].path);
4552 av_freep(&sc->drefs[j].dir);
4554 av_freep(&sc->drefs);
4556 sc->drefs_count = 0;
4558 if (!sc->pb_is_copied)
4559 avio_closep(&sc->pb);
4562 av_freep(&sc->chunk_offsets);
4563 av_freep(&sc->stsc_data);
4564 av_freep(&sc->sample_sizes);
4565 av_freep(&sc->keyframes);
4566 av_freep(&sc->stts_data);
4567 av_freep(&sc->stps_data);
4568 av_freep(&sc->elst_data);
4569 av_freep(&sc->rap_group);
4570 av_freep(&sc->display_matrix);
4572 av_freep(&sc->cenc.auxiliary_info);
4573 av_aes_ctr_free(sc->cenc.aes_ctr);
4576 if (mov->dv_demux) {
4577 avformat_free_context(mov->dv_fctx);
4578 mov->dv_fctx = NULL;
4581 if (mov->meta_keys) {
4582 for (i = 1; i < mov->meta_keys_count; i++) {
4583 av_freep(&mov->meta_keys[i]);
4585 av_freep(&mov->meta_keys);
4588 av_freep(&mov->trex_data);
4589 av_freep(&mov->bitrates);
4591 for (i = 0; i < mov->fragment_index_count; i++) {
4592 MOVFragmentIndex* index = mov->fragment_index_data[i];
4593 av_freep(&index->items);
4594 av_freep(&mov->fragment_index_data[i]);
4596 av_freep(&mov->fragment_index_data);
4598 av_freep(&mov->aes_decrypt);
4603 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
4607 for (i = 0; i < s->nb_streams; i++) {
4608 AVStream *st = s->streams[i];
4609 MOVStreamContext *sc = st->priv_data;
4611 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4612 sc->timecode_track == tmcd_id)
4618 /* look for a tmcd track not referenced by any video track, and export it globally */
4619 static void export_orphan_timecode(AVFormatContext *s)
4623 for (i = 0; i < s->nb_streams; i++) {
4624 AVStream *st = s->streams[i];
4626 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
4627 !tmcd_is_referenced(s, i + 1)) {
4628 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
4630 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
4637 static int read_tfra(MOVContext *mov, AVIOContext *f)
4639 MOVFragmentIndex* index = NULL;
4640 int version, fieldlength, i, j;
4641 int64_t pos = avio_tell(f);
4642 uint32_t size = avio_rb32(f);
4645 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
4648 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
4649 index = av_mallocz(sizeof(MOVFragmentIndex));
4651 return AVERROR(ENOMEM);
4654 tmp = av_realloc_array(mov->fragment_index_data,
4655 mov->fragment_index_count + 1,
4656 sizeof(MOVFragmentIndex*));
4659 return AVERROR(ENOMEM);
4661 mov->fragment_index_data = tmp;
4662 mov->fragment_index_data[mov->fragment_index_count++] = index;
4664 version = avio_r8(f);
4666 index->track_id = avio_rb32(f);
4667 fieldlength = avio_rb32(f);
4668 index->item_count = avio_rb32(f);
4669 index->items = av_mallocz_array(
4670 index->item_count, sizeof(MOVFragmentIndexItem));
4671 if (!index->items) {
4672 index->item_count = 0;
4673 return AVERROR(ENOMEM);
4675 for (i = 0; i < index->item_count; i++) {
4676 int64_t time, offset;
4678 time = avio_rb64(f);
4679 offset = avio_rb64(f);
4681 time = avio_rb32(f);
4682 offset = avio_rb32(f);
4684 index->items[i].time = time;
4685 index->items[i].moof_offset = offset;
4686 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
4688 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
4690 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
4694 avio_seek(f, pos + size, SEEK_SET);
4698 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
4700 int64_t stream_size = avio_size(f);
4701 int64_t original_pos = avio_tell(f);
4705 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4709 mfra_size = avio_rb32(f);
4710 if (mfra_size < 0 || mfra_size > stream_size) {
4711 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4714 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4718 if (avio_rb32(f) != mfra_size) {
4719 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4722 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4723 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4726 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4728 ret = read_tfra(c, f);
4734 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4736 av_log(c->fc, AV_LOG_ERROR,
4737 "failed to seek back after looking for mfra\n");
4743 static int mov_read_header(AVFormatContext *s)
4745 MOVContext *mov = s->priv_data;
4746 AVIOContext *pb = s->pb;
4748 MOVAtom atom = { AV_RL32("root") };
4751 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
4752 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
4753 mov->decryption_key_len, AES_CTR_KEY_SIZE);
4754 return AVERROR(EINVAL);
4758 mov->trak_index = -1;
4759 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4761 atom.size = avio_size(pb);
4763 atom.size = INT64_MAX;
4765 /* check MOV header */
4767 if (mov->moov_retry)
4768 avio_seek(pb, 0, SEEK_SET);
4769 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4770 av_log(s, AV_LOG_ERROR, "error reading header\n");
4774 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4775 if (!mov->found_moov) {
4776 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4778 return AVERROR_INVALIDDATA;
4780 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4783 if (mov->chapter_track > 0 && !mov->ignore_chapters)
4784 mov_read_chapters(s);
4785 for (i = 0; i < s->nb_streams; i++)
4786 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
4787 mov_read_timecode_track(s, s->streams[i]);
4790 /* copy timecode metadata from tmcd tracks to the related video streams */
4791 for (i = 0; i < s->nb_streams; i++) {
4792 AVStream *st = s->streams[i];
4793 MOVStreamContext *sc = st->priv_data;
4794 if (sc->timecode_track > 0) {
4795 AVDictionaryEntry *tcr;
4796 int tmcd_st_id = -1;
4798 for (j = 0; j < s->nb_streams; j++)
4799 if (s->streams[j]->id == sc->timecode_track)
4802 if (tmcd_st_id < 0 || tmcd_st_id == i)
4804 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4806 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4809 export_orphan_timecode(s);
4811 for (i = 0; i < s->nb_streams; i++) {
4812 AVStream *st = s->streams[i];
4813 MOVStreamContext *sc = st->priv_data;
4814 fix_timescale(mov, sc);
4815 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
4816 st->skip_samples = sc->start_pad;
4818 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4819 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4820 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4821 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4822 if (st->codec->width <= 0 || st->codec->height <= 0) {
4823 st->codec->width = sc->width;
4824 st->codec->height = sc->height;
4826 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4827 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4831 if (mov->handbrake_version &&
4832 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
4833 st->codec->codec_id == AV_CODEC_ID_MP3
4835 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
4836 st->need_parsing = AVSTREAM_PARSE_FULL;
4840 if (mov->trex_data) {
4841 for (i = 0; i < s->nb_streams; i++) {
4842 AVStream *st = s->streams[i];
4843 MOVStreamContext *sc = st->priv_data;
4844 if (st->duration > 0)
4845 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4849 if (mov->use_mfra_for > 0) {
4850 for (i = 0; i < s->nb_streams; i++) {
4851 AVStream *st = s->streams[i];
4852 MOVStreamContext *sc = st->priv_data;
4853 if (sc->duration_for_fps > 0) {
4854 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4855 sc->duration_for_fps;
4860 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4861 if (mov->bitrates[i]) {
4862 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4866 ff_rfps_calculate(s);
4868 for (i = 0; i < s->nb_streams; i++) {
4869 AVStream *st = s->streams[i];
4870 MOVStreamContext *sc = st->priv_data;
4872 switch (st->codec->codec_type) {
4873 case AVMEDIA_TYPE_AUDIO:
4874 err = ff_replaygain_export(st, s->metadata);
4880 case AVMEDIA_TYPE_VIDEO:
4881 if (sc->display_matrix) {
4882 AVPacketSideData *sd, *tmp;
4884 tmp = av_realloc_array(st->side_data,
4885 st->nb_side_data + 1, sizeof(*tmp));
4887 return AVERROR(ENOMEM);
4889 st->side_data = tmp;
4892 sd = &st->side_data[st->nb_side_data - 1];
4893 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4894 sd->size = sizeof(int32_t) * 9;
4895 sd->data = (uint8_t*)sc->display_matrix;
4896 sc->display_matrix = NULL;
4901 ff_configure_buffers_for_index(s, AV_TIME_BASE);
4906 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4908 AVIndexEntry *sample = NULL;
4909 int64_t best_dts = INT64_MAX;
4911 for (i = 0; i < s->nb_streams; i++) {
4912 AVStream *avst = s->streams[i];
4913 MOVStreamContext *msc = avst->priv_data;
4914 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4915 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4916 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4917 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4918 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4920 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4921 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4922 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4923 sample = current_sample;
4932 static int should_retry(AVIOContext *pb, int error_code) {
4933 if (error_code == AVERROR_EOF || avio_feof(pb))
4939 static int mov_switch_root(AVFormatContext *s, int64_t target)
4941 MOVContext *mov = s->priv_data;
4943 int already_read = 0;
4945 if (avio_seek(s->pb, target, SEEK_SET) != target) {
4946 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
4947 return AVERROR_INVALIDDATA;
4950 mov->next_root_atom = 0;
4952 for (i = 0; i < mov->fragment_index_count; i++) {
4953 MOVFragmentIndex *index = mov->fragment_index_data[i];
4955 for (j = 0; j < index->item_count; j++) {
4956 MOVFragmentIndexItem *item = &index->items[j];
4958 mov->next_root_atom = item->moof_offset;
4959 break; // Advance to next index in outer loop
4960 } else if (item->moof_offset == target) {
4961 index->current_item = FFMIN(j, index->current_item);
4962 if (item->headers_read)
4964 item->headers_read = 1;
4969 index->current_item = 0;
4975 mov->found_mdat = 0;
4977 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4980 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4985 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4987 MOVContext *mov = s->priv_data;
4988 MOVStreamContext *sc;
4989 AVIndexEntry *sample;
4990 AVStream *st = NULL;
4994 sample = mov_find_next_sample(s, &st);
4995 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
4996 if (!mov->next_root_atom)
4998 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
5003 /* must be done just before reading, to avoid infinite loop on sample */
5004 sc->current_sample++;
5006 if (mov->next_root_atom) {
5007 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
5008 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
5011 if (st->discard != AVDISCARD_ALL) {
5012 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
5013 if (ret64 != sample->pos) {
5014 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
5015 sc->ffindex, sample->pos);
5016 sc->current_sample -= should_retry(sc->pb, ret64);
5017 return AVERROR_INVALIDDATA;
5019 ret = av_get_packet(sc->pb, pkt, sample->size);
5021 sc->current_sample -= should_retry(sc->pb, ret);
5024 if (sc->has_palette) {
5027 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
5029 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
5031 memcpy(pal, sc->palette, AVPALETTE_SIZE);
5032 sc->has_palette = 0;
5035 #if CONFIG_DV_DEMUXER
5036 if (mov->dv_demux && sc->dv_audio_container) {
5037 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
5038 av_freep(&pkt->data);
5040 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
5047 pkt->stream_index = sc->ffindex;
5048 pkt->dts = sample->timestamp;
5049 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
5050 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
5051 /* update ctts context */
5053 if (sc->ctts_index < sc->ctts_count &&
5054 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
5056 sc->ctts_sample = 0;
5059 pkt->dts = AV_NOPTS_VALUE;
5061 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
5062 st->index_entries[sc->current_sample].timestamp : st->duration;
5063 pkt->duration = next_dts - pkt->dts;
5064 pkt->pts = pkt->dts;
5066 if (st->discard == AVDISCARD_ALL)
5068 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
5069 pkt->pos = sample->pos;
5072 aax_filter(pkt->data, pkt->size, mov);
5074 if (sc->cenc.aes_ctr) {
5075 ret = cenc_filter(mov, sc, pkt->data, pkt->size);
5084 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
5086 MOVContext *mov = s->priv_data;
5089 if (!mov->fragment_index_complete)
5092 for (i = 0; i < mov->fragment_index_count; i++) {
5093 if (mov->fragment_index_data[i]->track_id == st->id) {
5094 MOVFragmentIndex *index = mov->fragment_index_data[i];
5095 for (j = index->item_count - 1; j >= 0; j--) {
5096 if (index->items[j].time <= timestamp) {
5097 if (index->items[j].headers_read)
5100 return mov_switch_root(s, index->items[j].moof_offset);
5109 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
5111 MOVStreamContext *sc = st->priv_data;
5112 int sample, time_sample;
5115 int ret = mov_seek_fragment(s, st, timestamp);
5119 sample = av_index_search_timestamp(st, timestamp, flags);
5120 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
5121 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
5123 if (sample < 0) /* not sure what to do */
5124 return AVERROR_INVALIDDATA;
5125 sc->current_sample = sample;
5126 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
5127 /* adjust ctts index */
5128 if (sc->ctts_data) {
5130 for (i = 0; i < sc->ctts_count; i++) {
5131 int next = time_sample + sc->ctts_data[i].count;
5132 if (next > sc->current_sample) {
5134 sc->ctts_sample = sc->current_sample - time_sample;
5143 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
5145 MOVContext *mc = s->priv_data;
5150 if (stream_index >= s->nb_streams)
5151 return AVERROR_INVALIDDATA;
5153 st = s->streams[stream_index];
5154 sample = mov_seek_stream(s, st, sample_time, flags);
5158 if (mc->seek_individually) {
5159 /* adjust seek timestamp to found sample timestamp */
5160 int64_t seek_timestamp = st->index_entries[sample].timestamp;
5162 for (i = 0; i < s->nb_streams; i++) {
5164 MOVStreamContext *sc = s->streams[i]->priv_data;
5166 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
5168 if (stream_index == i)
5171 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
5172 mov_seek_stream(s, st, timestamp, flags);
5175 for (i = 0; i < s->nb_streams; i++) {
5176 MOVStreamContext *sc;
5179 sc->current_sample = 0;
5182 MOVStreamContext *sc;
5183 AVIndexEntry *entry = mov_find_next_sample(s, &st);
5185 return AVERROR_INVALIDDATA;
5187 if (sc->ffindex == stream_index && sc->current_sample == sample)
5189 sc->current_sample++;
5195 #define OFFSET(x) offsetof(MOVContext, x)
5196 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
5197 static const AVOption mov_options[] = {
5198 {"use_absolute_path",
5199 "allow using absolute path when opening alias, this is a possible security issue",
5200 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
5202 {"seek_streams_individually",
5203 "Seek each stream individually to the to the closest point",
5204 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
5206 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
5208 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
5211 "use mfra for fragment timestamps",
5212 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
5213 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
5215 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
5216 FLAGS, "use_mfra_for" },
5217 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
5218 FLAGS, "use_mfra_for" },
5219 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
5220 FLAGS, "use_mfra_for" },
5221 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
5222 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5223 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
5224 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5225 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
5226 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5227 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
5228 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
5229 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
5230 .flags = AV_OPT_FLAG_DECODING_PARAM },
5231 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5232 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
5233 {.i64 = 0}, 0, 1, FLAGS },
5238 static const AVClass mov_class = {
5239 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
5240 .item_name = av_default_item_name,
5241 .option = mov_options,
5242 .version = LIBAVUTIL_VERSION_INT,
5245 AVInputFormat ff_mov_demuxer = {
5246 .name = "mov,mp4,m4a,3gp,3g2,mj2",
5247 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5248 .priv_class = &mov_class,
5249 .priv_data_size = sizeof(MOVContext),
5250 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
5251 .read_probe = mov_probe,
5252 .read_header = mov_read_header,
5253 .read_packet = mov_read_packet,
5254 .read_close = mov_read_close,
5255 .read_seek = mov_read_seek,
5256 .flags = AVFMT_NO_BYTE_SEEK,