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 //#define MOV_EXPORT_ALL_METADATA
32 #include "libavutil/attributes.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/display.h"
35 #include "libavutil/intreadwrite.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/timecode.h"
42 #include "libavcodec/ac3tab.h"
45 #include "avio_internal.h"
48 #include "libavcodec/get_bits.h"
51 #include "replaygain.h"
57 #include "qtpalette.h"
63 /* those functions parse an atom */
64 /* links atom IDs to parse functions */
65 typedef struct MOVParseTableEntry
{
67 int (*parse
)(MOVContext
*ctx
, AVIOContext
*pb
, MOVAtom atom
);
70 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
);
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 st
->disposition
|= AV_DISPOSITION_ATTACHED_PIC
;
200 st
->attached_pic
= pkt
;
201 st
->attached_pic
.stream_index
= st
->index
;
202 st
->attached_pic
.flags
|= AV_PKT_FLAG_KEY
;
204 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
205 st
->codec
->codec_id
= id
;
210 static int mov_metadata_raw(MOVContext
*c
, AVIOContext
*pb
,
211 unsigned len
, const char *key
)
213 char *value
= av_malloc(len
+ 1);
215 return AVERROR(ENOMEM
);
216 avio_read(pb
, value
, len
);
218 return av_dict_set(&c
->fc
->metadata
, key
, value
, AV_DICT_DONT_STRDUP_VAL
);
221 static int mov_metadata_loci(MOVContext
*c
, AVIOContext
*pb
, unsigned len
)
223 char language
[4] = { 0 };
225 uint16_t langcode
= 0;
226 double longitude
, latitude
;
227 const char *key
= "location";
229 if (len
< 4 + 2 + 1 + 1 + 4 + 4 + 4)
230 return AVERROR_INVALIDDATA
;
232 avio_skip(pb
, 4); // version+flags
233 langcode
= avio_rb16(pb
);
234 ff_mov_lang_to_iso639(langcode
, language
);
237 len
-= avio_get_str(pb
, len
, buf
, sizeof(buf
)); // place name
239 return AVERROR_INVALIDDATA
;
240 avio_skip(pb
, 1); // role
244 return AVERROR_INVALIDDATA
;
245 longitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
246 latitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
248 // Try to output in the same format as the ?xyz field
249 snprintf(buf
, sizeof(buf
), "%+08.4f%+09.4f/", latitude
, longitude
);
250 if (*language
&& strcmp(language
, "und")) {
252 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
253 av_dict_set(&c
->fc
->metadata
, key2
, buf
, 0);
255 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
256 return av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
259 static int mov_read_udta_string(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
261 #ifdef MOV_EXPORT_ALL_METADATA
264 char str
[1024], key2
[16], language
[4] = {0};
265 const char *key
= NULL
;
266 uint16_t langcode
= 0;
267 uint32_t data_type
= 0, str_size
;
268 int (*parse
)(MOVContext
*, AVIOContext
*, unsigned, const char*) = NULL
;
271 case MKTAG(0xa9,'n','a','m'): key
= "title"; break;
272 case MKTAG(0xa9,'a','u','t'):
273 case MKTAG(0xa9,'A','R','T'): key
= "artist"; break;
274 case MKTAG( 'a','A','R','T'): key
= "album_artist"; break;
275 case MKTAG(0xa9,'w','r','t'): key
= "composer"; break;
276 case MKTAG( 'c','p','i','l'): key
= "compilation";
277 parse
= mov_metadata_int8_no_padding
; break;
278 case MKTAG( 'c','p','r','t'):
279 case MKTAG(0xa9,'c','p','y'): key
= "copyright"; break;
280 case MKTAG(0xa9,'g','r','p'): key
= "grouping"; break;
281 case MKTAG(0xa9,'l','y','r'): key
= "lyrics"; break;
282 case MKTAG(0xa9,'c','m','t'):
283 case MKTAG(0xa9,'i','n','f'): key
= "comment"; break;
284 case MKTAG(0xa9,'a','l','b'): key
= "album"; break;
285 case MKTAG(0xa9,'d','a','y'): key
= "date"; break;
286 case MKTAG(0xa9,'g','e','n'): key
= "genre"; break;
287 case MKTAG( 'g','n','r','e'): key
= "genre";
288 parse
= mov_metadata_gnre
; break;
289 case MKTAG(0xa9,'t','o','o'):
290 case MKTAG(0xa9,'s','w','r'): key
= "encoder"; break;
291 case MKTAG(0xa9,'e','n','c'): key
= "encoder"; break;
292 case MKTAG(0xa9,'m','a','k'): key
= "make"; break;
293 case MKTAG(0xa9,'m','o','d'): key
= "model"; break;
294 case MKTAG(0xa9,'x','y','z'): key
= "location"; break;
295 case MKTAG( 'd','e','s','c'): key
= "description";break;
296 case MKTAG( 'l','d','e','s'): key
= "synopsis"; break;
297 case MKTAG( 't','v','s','h'): key
= "show"; break;
298 case MKTAG( 't','v','e','n'): key
= "episode_id";break;
299 case MKTAG( 't','v','n','n'): key
= "network"; break;
300 case MKTAG( 't','r','k','n'): key
= "track";
301 parse
= mov_metadata_track_or_disc_number
; break;
302 case MKTAG( 'd','i','s','k'): key
= "disc";
303 parse
= mov_metadata_track_or_disc_number
; break;
304 case MKTAG( 't','v','e','s'): key
= "episode_sort";
305 parse
= mov_metadata_int8_bypass_padding
; break;
306 case MKTAG( 't','v','s','n'): key
= "season_number";
307 parse
= mov_metadata_int8_bypass_padding
; break;
308 case MKTAG( 's','t','i','k'): key
= "media_type";
309 parse
= mov_metadata_int8_no_padding
; break;
310 case MKTAG( 'h','d','v','d'): key
= "hd_video";
311 parse
= mov_metadata_int8_no_padding
; break;
312 case MKTAG( 'p','g','a','p'): key
= "gapless_playback";
313 parse
= mov_metadata_int8_no_padding
; break;
314 case MKTAG( '@','P','R','M'):
315 return mov_metadata_raw(c
, pb
, atom
.size
, "premiere_version");
316 case MKTAG( '@','P','R','Q'):
317 return mov_metadata_raw(c
, pb
, atom
.size
, "quicktime_version");
318 case MKTAG( 'l','o','c','i'):
319 return mov_metadata_loci(c
, pb
, atom
.size
);
320 case MKTAG( 'X','M','P','_'):
321 return mov_metadata_raw(c
, pb
, atom
.size
, "xmp");
324 if (c
->itunes_metadata
&& atom
.size
> 8) {
325 int data_size
= avio_rb32(pb
);
326 int tag
= avio_rl32(pb
);
327 if (tag
== MKTAG('d','a','t','a')) {
328 data_type
= avio_rb32(pb
); // type
329 avio_rb32(pb
); // unknown
330 str_size
= data_size
- 16;
333 if (atom
.type
== MKTAG('c', 'o', 'v', 'r')) {
334 int ret
= mov_read_covr(c
, pb
, data_type
, str_size
);
336 av_log(c
->fc
, AV_LOG_ERROR
, "Error parsing cover art.\n");
341 } else if (atom
.size
> 4 && key
&& !c
->itunes_metadata
) {
342 str_size
= avio_rb16(pb
); // string length
343 langcode
= avio_rb16(pb
);
344 ff_mov_lang_to_iso639(langcode
, language
);
347 str_size
= atom
.size
;
349 #ifdef MOV_EXPORT_ALL_METADATA
351 snprintf(tmp_key
, 5, "%.4s", (char*)&atom
.type
);
359 return AVERROR_INVALIDDATA
;
361 str_size
= FFMIN3(sizeof(str
)-1, str_size
, atom
.size
);
364 parse(c
, pb
, str_size
, key
);
366 if (data_type
== 3 || (data_type
== 0 && (langcode
< 0x400 || langcode
== 0x7fff))) { // MAC Encoded
367 mov_read_mac_string(c
, pb
, str_size
, str
, sizeof(str
));
369 int ret
= avio_read(pb
, str
, str_size
);
371 return ret
< 0 ? ret
: AVERROR_INVALIDDATA
;
374 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
375 av_dict_set(&c
->fc
->metadata
, key
, str
, 0);
376 if (*language
&& strcmp(language
, "und")) {
377 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
378 av_dict_set(&c
->fc
->metadata
, key2
, str
, 0);
381 av_dlog(c
->fc
, "lang \"%3s\" ", language
);
382 av_dlog(c
->fc
, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64
"\n",
383 key
, str
, (char*)&atom
.type
, str_size
, atom
.size
);
388 static int mov_read_chpl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
391 int i
, nb_chapters
, str_len
, version
;
394 if ((atom
.size
-= 5) < 0)
397 version
= avio_r8(pb
);
400 avio_rb32(pb
); // ???
401 nb_chapters
= avio_r8(pb
);
403 for (i
= 0; i
< nb_chapters
; i
++) {
407 start
= avio_rb64(pb
);
408 str_len
= avio_r8(pb
);
410 if ((atom
.size
-= 9+str_len
) < 0)
413 avio_read(pb
, str
, str_len
);
415 avpriv_new_chapter(c
->fc
, i
, (AVRational
){1,10000000}, start
, AV_NOPTS_VALUE
, str
);
420 #define MIN_DATA_ENTRY_BOX_SIZE 12
421 static int mov_read_dref(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
424 MOVStreamContext
*sc
;
427 if (c
->fc
->nb_streams
< 1)
429 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
432 avio_rb32(pb
); // version + flags
433 entries
= avio_rb32(pb
);
434 if (entries
> (atom
.size
- 1) / MIN_DATA_ENTRY_BOX_SIZE
+ 1 ||
435 entries
>= UINT_MAX
/ sizeof(*sc
->drefs
))
436 return AVERROR_INVALIDDATA
;
439 sc
->drefs
= av_mallocz(entries
* sizeof(*sc
->drefs
));
441 return AVERROR(ENOMEM
);
442 sc
->drefs_count
= entries
;
444 for (i
= 0; i
< sc
->drefs_count
; i
++) {
445 MOVDref
*dref
= &sc
->drefs
[i
];
446 uint32_t size
= avio_rb32(pb
);
447 int64_t next
= avio_tell(pb
) + size
- 4;
450 return AVERROR_INVALIDDATA
;
452 dref
->type
= avio_rl32(pb
);
453 avio_rb32(pb
); // version + flags
454 av_dlog(c
->fc
, "type %.4s size %d\n", (char*)&dref
->type
, size
);
456 if (dref
->type
== MKTAG('a','l','i','s') && size
> 150) {
457 /* macintosh alias record */
458 uint16_t volume_len
, len
;
463 volume_len
= avio_r8(pb
);
464 volume_len
= FFMIN(volume_len
, 27);
465 avio_read(pb
, dref
->volume
, 27);
466 dref
->volume
[volume_len
] = 0;
467 av_log(c
->fc
, AV_LOG_DEBUG
, "volume %s, len %d\n", dref
->volume
, volume_len
);
472 len
= FFMIN(len
, 63);
473 avio_read(pb
, dref
->filename
, 63);
474 dref
->filename
[len
] = 0;
475 av_log(c
->fc
, AV_LOG_DEBUG
, "filename %s, len %d\n", dref
->filename
, len
);
479 /* read next level up_from_alias/down_to_target */
480 dref
->nlvl_from
= avio_rb16(pb
);
481 dref
->nlvl_to
= avio_rb16(pb
);
482 av_log(c
->fc
, AV_LOG_DEBUG
, "nlvl from %d, nlvl to %d\n",
483 dref
->nlvl_from
, dref
->nlvl_to
);
487 for (type
= 0; type
!= -1 && avio_tell(pb
) < next
; ) {
490 type
= avio_rb16(pb
);
492 av_log(c
->fc
, AV_LOG_DEBUG
, "type %d, len %d\n", type
, len
);
495 if (type
== 2) { // absolute path
497 dref
->path
= av_mallocz(len
+1);
499 return AVERROR(ENOMEM
);
500 avio_read(pb
, dref
->path
, len
);
501 if (len
> volume_len
&& !strncmp(dref
->path
, dref
->volume
, volume_len
)) {
503 memmove(dref
->path
, dref
->path
+volume_len
, len
);
506 for (j
= 0; j
< len
; j
++)
507 if (dref
->path
[j
] == ':')
509 av_log(c
->fc
, AV_LOG_DEBUG
, "path %s\n", dref
->path
);
510 } else if (type
== 0) { // directory name
512 dref
->dir
= av_malloc(len
+1);
514 return AVERROR(ENOMEM
);
515 if (avio_read(pb
, dref
->dir
, len
) != len
)
516 return AVERROR_INVALIDDATA
;
518 for (j
= 0; j
< len
; j
++)
519 if (dref
->dir
[j
] == ':')
521 av_log(c
->fc
, AV_LOG_DEBUG
, "dir %s\n", dref
->dir
);
526 avio_seek(pb
, next
, SEEK_SET
);
531 static int mov_read_hdlr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
535 uint32_t av_unused ctype
;
539 if (c
->fc
->nb_streams
< 1) // meta before first trak
542 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
544 avio_r8(pb
); /* version */
545 avio_rb24(pb
); /* flags */
548 ctype
= avio_rl32(pb
);
549 type
= avio_rl32(pb
); /* component subtype */
551 av_dlog(c
->fc
, "ctype= %.4s (0x%08x)\n", (char*)&ctype
, ctype
);
552 av_dlog(c
->fc
, "stype= %.4s\n", (char*)&type
);
554 if (type
== MKTAG('v','i','d','e'))
555 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
556 else if (type
== MKTAG('s','o','u','n'))
557 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
558 else if (type
== MKTAG('m','1','a',' '))
559 st
->codec
->codec_id
= AV_CODEC_ID_MP2
;
560 else if ((type
== MKTAG('s','u','b','p')) || (type
== MKTAG('c','l','c','p')))
561 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
563 avio_rb32(pb
); /* component manufacture */
564 avio_rb32(pb
); /* component flags */
565 avio_rb32(pb
); /* component flags mask */
567 title_size
= atom
.size
- 24;
568 if (title_size
> 0) {
569 title_str
= av_malloc(title_size
+ 1); /* Add null terminator */
571 return AVERROR(ENOMEM
);
572 avio_read(pb
, title_str
, title_size
);
573 title_str
[title_size
] = 0;
575 av_dict_set(&st
->metadata
, "handler_name", title_str
+
576 (!c
->isom
&& title_str
[0] == title_size
- 1), 0);
577 av_freep(&title_str
);
583 int ff_mov_read_esds(AVFormatContext
*fc
, AVIOContext
*pb
)
588 if (fc
->nb_streams
< 1)
590 st
= fc
->streams
[fc
->nb_streams
-1];
592 avio_rb32(pb
); /* version + flags */
593 ff_mp4_read_descr(fc
, pb
, &tag
);
594 if (tag
== MP4ESDescrTag
) {
595 ff_mp4_parse_es_descr(pb
, NULL
);
597 avio_rb16(pb
); /* ID */
599 ff_mp4_read_descr(fc
, pb
, &tag
);
600 if (tag
== MP4DecConfigDescrTag
)
601 ff_mp4_read_dec_config_descr(fc
, st
, pb
);
605 static int mov_read_esds(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
607 return ff_mov_read_esds(c
->fc
, pb
);
610 static int mov_read_dac3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
613 int ac3info
, acmod
, lfeon
, bsmod
;
615 if (c
->fc
->nb_streams
< 1)
617 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
619 ac3info
= avio_rb24(pb
);
620 bsmod
= (ac3info
>> 14) & 0x7;
621 acmod
= (ac3info
>> 11) & 0x7;
622 lfeon
= (ac3info
>> 10) & 0x1;
623 st
->codec
->channels
= ((int[]){2,1,2,3,3,4,4,5})[acmod
] + lfeon
;
624 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
626 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
627 st
->codec
->audio_service_type
= bsmod
;
628 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
629 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
634 static int mov_read_dec3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
637 int eac3info
, acmod
, lfeon
, bsmod
;
639 if (c
->fc
->nb_streams
< 1)
641 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
643 /* No need to parse fields for additional independent substreams and its
644 * associated dependent substreams since libavcodec's E-AC-3 decoder
645 * does not support them yet. */
646 avio_rb16(pb
); /* data_rate and num_ind_sub */
647 eac3info
= avio_rb24(pb
);
648 bsmod
= (eac3info
>> 12) & 0x1f;
649 acmod
= (eac3info
>> 9) & 0x7;
650 lfeon
= (eac3info
>> 8) & 0x1;
651 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
653 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
654 st
->codec
->channels
= av_get_channel_layout_nb_channels(st
->codec
->channel_layout
);
655 st
->codec
->audio_service_type
= bsmod
;
656 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
657 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
662 static int mov_read_chan(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
666 if (c
->fc
->nb_streams
< 1)
668 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
673 /* skip version and flags */
676 ff_mov_read_chan(c
->fc
, pb
, st
, atom
.size
- 4);
681 static int mov_read_wfex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
685 if (c
->fc
->nb_streams
< 1)
687 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
689 if (ff_get_wav_header(pb
, st
->codec
, atom
.size
) < 0) {
690 av_log(c
->fc
, AV_LOG_WARNING
, "get_wav_header failed\n");
696 static int mov_read_pasp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
698 const int num
= avio_rb32(pb
);
699 const int den
= avio_rb32(pb
);
702 if (c
->fc
->nb_streams
< 1)
704 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
706 if ((st
->sample_aspect_ratio
.den
!= 1 || st
->sample_aspect_ratio
.num
) && // default
707 (den
!= st
->sample_aspect_ratio
.den
|| num
!= st
->sample_aspect_ratio
.num
)) {
708 av_log(c
->fc
, AV_LOG_WARNING
,
709 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
710 st
->sample_aspect_ratio
.num
, st
->sample_aspect_ratio
.den
,
712 } else if (den
!= 0) {
713 st
->sample_aspect_ratio
.num
= num
;
714 st
->sample_aspect_ratio
.den
= den
;
719 /* this atom contains actual media data */
720 static int mov_read_mdat(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
722 if (atom
.size
== 0) /* wrong one (MP4) */
725 return 0; /* now go for moov */
728 /* read major brand, minor version and compatible brands and store them as metadata */
729 static int mov_read_ftyp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
733 char* comp_brands_str
;
734 uint8_t type
[5] = {0};
736 avio_read(pb
, type
, 4);
737 if (strcmp(type
, "qt "))
739 av_log(c
->fc
, AV_LOG_DEBUG
, "ISO: File Type Major Brand: %.4s\n",(char *)&type
);
740 av_dict_set(&c
->fc
->metadata
, "major_brand", type
, 0);
741 minor_ver
= avio_rb32(pb
); /* minor version */
742 av_dict_set_int(&c
->fc
->metadata
, "minor_version", minor_ver
, 0);
744 comp_brand_size
= atom
.size
- 8;
745 if (comp_brand_size
< 0)
746 return AVERROR_INVALIDDATA
;
747 comp_brands_str
= av_malloc(comp_brand_size
+ 1); /* Add null terminator */
748 if (!comp_brands_str
)
749 return AVERROR(ENOMEM
);
750 avio_read(pb
, comp_brands_str
, comp_brand_size
);
751 comp_brands_str
[comp_brand_size
] = 0;
752 av_dict_set(&c
->fc
->metadata
, "compatible_brands", comp_brands_str
, 0);
753 av_freep(&comp_brands_str
);
758 /* this atom should contain all header atoms */
759 static int mov_read_moov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
764 av_log(c
->fc
, AV_LOG_WARNING
, "Found duplicated MOOV Atom. Skipped it\n");
765 avio_skip(pb
, atom
.size
);
769 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
771 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
772 /* so we don't parse the whole file if over a network */
774 return 0; /* now go for mdat */
777 static int mov_read_moof(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
779 c
->fragment
.moof_offset
= c
->fragment
.implicit_offset
= avio_tell(pb
) - 8;
780 av_dlog(c
->fc
, "moof offset %"PRIx64
"\n", c
->fragment
.moof_offset
);
781 return mov_read_default(c
, pb
, atom
);
784 static void mov_metadata_creation_time(AVDictionary
**metadata
, int64_t time
)
790 if(time
>= 2082844800)
791 time
-= 2082844800; /* seconds between 1904-01-01 and Epoch */
793 ptm
= gmtime(&timet
);
795 strftime(buffer
, sizeof(buffer
), "%Y-%m-%d %H:%M:%S", ptm
);
796 av_dict_set(metadata
, "creation_time", buffer
, 0);
800 static int mov_read_mdhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
803 MOVStreamContext
*sc
;
805 char language
[4] = {0};
807 int64_t creation_time
;
809 if (c
->fc
->nb_streams
< 1)
811 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
814 if (sc
->time_scale
) {
815 av_log(c
->fc
, AV_LOG_ERROR
, "Multiple mdhd?\n");
816 return AVERROR_INVALIDDATA
;
819 version
= avio_r8(pb
);
821 avpriv_request_sample(c
->fc
, "Version %d", version
);
822 return AVERROR_PATCHWELCOME
;
824 avio_rb24(pb
); /* flags */
826 creation_time
= avio_rb64(pb
);
829 creation_time
= avio_rb32(pb
);
830 avio_rb32(pb
); /* modification time */
832 mov_metadata_creation_time(&st
->metadata
, creation_time
);
834 sc
->time_scale
= avio_rb32(pb
);
835 st
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
837 lang
= avio_rb16(pb
); /* language */
838 if (ff_mov_lang_to_iso639(lang
, language
))
839 av_dict_set(&st
->metadata
, "language", language
, 0);
840 avio_rb16(pb
); /* quality */
845 static int mov_read_mvhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
847 int64_t creation_time
;
848 int version
= avio_r8(pb
); /* version */
849 avio_rb24(pb
); /* flags */
852 creation_time
= avio_rb64(pb
);
855 creation_time
= avio_rb32(pb
);
856 avio_rb32(pb
); /* modification time */
858 mov_metadata_creation_time(&c
->fc
->metadata
, creation_time
);
859 c
->time_scale
= avio_rb32(pb
); /* time scale */
861 av_dlog(c
->fc
, "time scale = %i\n", c
->time_scale
);
863 c
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
864 // set the AVCodecContext duration because the duration of individual tracks
866 if (c
->time_scale
> 0 && !c
->trex_data
)
867 c
->fc
->duration
= av_rescale(c
->duration
, AV_TIME_BASE
, c
->time_scale
);
868 avio_rb32(pb
); /* preferred scale */
870 avio_rb16(pb
); /* preferred volume */
872 avio_skip(pb
, 10); /* reserved */
874 avio_skip(pb
, 36); /* display matrix */
876 avio_rb32(pb
); /* preview time */
877 avio_rb32(pb
); /* preview duration */
878 avio_rb32(pb
); /* poster time */
879 avio_rb32(pb
); /* selection time */
880 avio_rb32(pb
); /* selection duration */
881 avio_rb32(pb
); /* current time */
882 avio_rb32(pb
); /* next track ID */
886 static int mov_read_enda(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
891 if (c
->fc
->nb_streams
< 1)
893 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
895 little_endian
= avio_rb16(pb
) & 0xFF;
896 av_dlog(c
->fc
, "enda %d\n", little_endian
);
897 if (little_endian
== 1) {
898 switch (st
->codec
->codec_id
) {
899 case AV_CODEC_ID_PCM_S24BE
:
900 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S24LE
;
902 case AV_CODEC_ID_PCM_S32BE
:
903 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S32LE
;
905 case AV_CODEC_ID_PCM_F32BE
:
906 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F32LE
;
908 case AV_CODEC_ID_PCM_F64BE
:
909 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F64LE
;
918 static int mov_read_fiel(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
921 unsigned mov_field_order
;
922 enum AVFieldOrder decoded_field_order
= AV_FIELD_UNKNOWN
;
924 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
926 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
928 return AVERROR_INVALIDDATA
;
929 mov_field_order
= avio_rb16(pb
);
930 if ((mov_field_order
& 0xFF00) == 0x0100)
931 decoded_field_order
= AV_FIELD_PROGRESSIVE
;
932 else if ((mov_field_order
& 0xFF00) == 0x0200) {
933 switch (mov_field_order
& 0xFF) {
934 case 0x01: decoded_field_order
= AV_FIELD_TT
;
936 case 0x06: decoded_field_order
= AV_FIELD_BB
;
938 case 0x09: decoded_field_order
= AV_FIELD_TB
;
940 case 0x0E: decoded_field_order
= AV_FIELD_BT
;
944 if (decoded_field_order
== AV_FIELD_UNKNOWN
&& mov_field_order
) {
945 av_log(NULL
, AV_LOG_ERROR
, "Unknown MOV field order 0x%04x\n", mov_field_order
);
947 st
->codec
->field_order
= decoded_field_order
;
952 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
953 static int mov_read_extradata(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
,
954 enum AVCodecID codec_id
)
961 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
963 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
965 if (st
->codec
->codec_id
!= codec_id
)
966 return 0; /* unexpected codec_id - don't mess with extradata */
968 size
= (uint64_t)st
->codec
->extradata_size
+ atom
.size
+ 8 + FF_INPUT_BUFFER_PADDING_SIZE
;
969 if (size
> INT_MAX
|| (uint64_t)atom
.size
> INT_MAX
)
970 return AVERROR_INVALIDDATA
;
971 if ((err
= av_reallocp(&st
->codec
->extradata
, size
)) < 0) {
972 st
->codec
->extradata_size
= 0;
975 buf
= st
->codec
->extradata
+ st
->codec
->extradata_size
;
976 st
->codec
->extradata_size
= size
- FF_INPUT_BUFFER_PADDING_SIZE
;
977 AV_WB32( buf
, atom
.size
+ 8);
978 AV_WL32( buf
+ 4, atom
.type
);
979 err
= avio_read(pb
, buf
+ 8, atom
.size
);
982 } else if (err
< atom
.size
) {
983 av_log(c
->fc
, AV_LOG_WARNING
, "truncated extradata\n");
984 st
->codec
->extradata_size
-= atom
.size
- err
;
986 memset(buf
+ 8 + err
, 0, FF_INPUT_BUFFER_PADDING_SIZE
);
990 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
991 static int mov_read_alac(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
993 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_ALAC
);
996 static int mov_read_avss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
998 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVS
);
1001 static int mov_read_jp2h(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1003 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_JPEG2000
);
1006 static int mov_read_avid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1008 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVUI
);
1010 ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_DNXHD
);
1014 static int mov_read_targa_y216(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1016 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_TARGA_Y216
);
1018 if (!ret
&& c
->fc
->nb_streams
>= 1) {
1019 AVCodecContext
*avctx
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1020 if (avctx
->extradata_size
>= 40) {
1021 avctx
->height
= AV_RB16(&avctx
->extradata
[36]);
1022 avctx
->width
= AV_RB16(&avctx
->extradata
[38]);
1028 static int mov_read_ares(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1030 if (c
->fc
->nb_streams
>= 1) {
1031 AVCodecContext
*codec
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1032 if (codec
->codec_tag
== MKTAG('A', 'V', 'i', 'n') &&
1033 codec
->codec_id
== AV_CODEC_ID_H264
&&
1036 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1037 if (avio_rb16(pb
) == 0xd4d)
1038 codec
->width
= 1440;
1043 return mov_read_avid(c
, pb
, atom
);
1046 static int mov_read_svq3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1048 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_SVQ3
);
1051 static int mov_read_wave(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1055 if (c
->fc
->nb_streams
< 1)
1057 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1059 if ((uint64_t)atom
.size
> (1<<30))
1060 return AVERROR_INVALIDDATA
;
1062 if (st
->codec
->codec_id
== AV_CODEC_ID_QDM2
||
1063 st
->codec
->codec_id
== AV_CODEC_ID_QDMC
||
1064 st
->codec
->codec_id
== AV_CODEC_ID_SPEEX
) {
1065 // pass all frma atom to codec, needed at least for QDMC and QDM2
1066 av_free(st
->codec
->extradata
);
1067 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1068 return AVERROR(ENOMEM
);
1069 } else if (atom
.size
> 8) { /* to read frma, esds atoms */
1071 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
1074 avio_skip(pb
, atom
.size
);
1079 * This function reads atom content and puts data in extradata without tag
1080 * nor size unlike mov_read_extradata.
1082 static int mov_read_glbl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1086 if (c
->fc
->nb_streams
< 1)
1088 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1090 if ((uint64_t)atom
.size
> (1<<30))
1091 return AVERROR_INVALIDDATA
;
1093 if (atom
.size
>= 10) {
1094 // Broken files created by legacy versions of libavformat will
1095 // wrap a whole fiel atom inside of a glbl atom.
1096 unsigned size
= avio_rb32(pb
);
1097 unsigned type
= avio_rl32(pb
);
1098 avio_seek(pb
, -8, SEEK_CUR
);
1099 if (type
== MKTAG('f','i','e','l') && size
== atom
.size
)
1100 return mov_read_default(c
, pb
, atom
);
1102 av_free(st
->codec
->extradata
);
1103 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1104 return AVERROR(ENOMEM
);
1109 static int mov_read_dvc1(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1112 uint8_t profile_level
;
1115 if (c
->fc
->nb_streams
< 1)
1117 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1119 if (atom
.size
>= (1<<28) || atom
.size
< 7)
1120 return AVERROR_INVALIDDATA
;
1122 profile_level
= avio_r8(pb
);
1123 if ((profile_level
& 0xf0) != 0xc0)
1126 avio_seek(pb
, 6, SEEK_CUR
);
1127 av_free(st
->codec
->extradata
);
1128 if ((ret
= ff_get_extradata(st
->codec
, pb
, atom
.size
- 7)) < 0)
1135 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1136 * but can have extradata appended at the end after the 40 bytes belonging
1139 static int mov_read_strf(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1143 if (c
->fc
->nb_streams
< 1)
1145 if (atom
.size
<= 40)
1147 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1149 if ((uint64_t)atom
.size
> (1<<30))
1150 return AVERROR_INVALIDDATA
;
1153 av_free(st
->codec
->extradata
);
1154 if (ff_get_extradata(st
->codec
, pb
, atom
.size
- 40) < 0)
1155 return AVERROR(ENOMEM
);
1159 static int mov_read_stco(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1162 MOVStreamContext
*sc
;
1163 unsigned int i
, entries
;
1165 if (c
->fc
->nb_streams
< 1)
1167 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1170 avio_r8(pb
); /* version */
1171 avio_rb24(pb
); /* flags */
1173 entries
= avio_rb32(pb
);
1177 if (entries
>= UINT_MAX
/sizeof(int64_t))
1178 return AVERROR_INVALIDDATA
;
1180 sc
->chunk_offsets
= av_malloc(entries
* sizeof(int64_t));
1181 if (!sc
->chunk_offsets
)
1182 return AVERROR(ENOMEM
);
1183 sc
->chunk_count
= entries
;
1185 if (atom
.type
== MKTAG('s','t','c','o'))
1186 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1187 sc
->chunk_offsets
[i
] = avio_rb32(pb
);
1188 else if (atom
.type
== MKTAG('c','o','6','4'))
1189 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1190 sc
->chunk_offsets
[i
] = avio_rb64(pb
);
1192 return AVERROR_INVALIDDATA
;
1194 sc
->chunk_count
= i
;
1196 if (pb
->eof_reached
)
1203 * Compute codec id for 'lpcm' tag.
1204 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1206 enum AVCodecID
ff_mov_get_lpcm_codec_id(int bps
, int flags
)
1213 return ff_get_pcm_codec_id(bps
, flags
& 1, flags
& 2, flags
& 4 ? -1 : 0);
1216 static int mov_codec_id(AVStream
*st
, uint32_t format
)
1218 int id
= ff_codec_get_id(ff_codec_movaudio_tags
, format
);
1221 ((format
& 0xFFFF) == 'm' + ('s' << 8) ||
1222 (format
& 0xFFFF) == 'T' + ('S' << 8)))
1223 id
= ff_codec_get_id(ff_codec_wav_tags
, av_bswap32(format
) & 0xFFFF);
1225 if (st
->codec
->codec_type
!= AVMEDIA_TYPE_VIDEO
&& id
> 0) {
1226 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1227 } else if (st
->codec
->codec_type
!= AVMEDIA_TYPE_AUDIO
&&
1228 /* skip old asf mpeg4 tag */
1229 format
&& format
!= MKTAG('m','p','4','s')) {
1230 id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1232 id
= ff_codec_get_id(ff_codec_bmp_tags
, format
);
1234 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
1235 else if (st
->codec
->codec_type
== AVMEDIA_TYPE_DATA
||
1236 (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
&&
1237 st
->codec
->codec_id
== AV_CODEC_ID_NONE
)) {
1238 id
= ff_codec_get_id(ff_codec_movsubtitle_tags
, format
);
1240 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
1244 st
->codec
->codec_tag
= format
;
1249 static void mov_parse_stsd_video(MOVContext
*c
, AVIOContext
*pb
,
1250 AVStream
*st
, MOVStreamContext
*sc
)
1252 uint8_t codec_name
[32];
1253 unsigned int color_depth
, len
, j
;
1254 int color_greyscale
;
1257 avio_rb16(pb
); /* version */
1258 avio_rb16(pb
); /* revision level */
1259 avio_rb32(pb
); /* vendor */
1260 avio_rb32(pb
); /* temporal quality */
1261 avio_rb32(pb
); /* spatial quality */
1263 st
->codec
->width
= avio_rb16(pb
); /* width */
1264 st
->codec
->height
= avio_rb16(pb
); /* height */
1266 avio_rb32(pb
); /* horiz resolution */
1267 avio_rb32(pb
); /* vert resolution */
1268 avio_rb32(pb
); /* data size, always 0 */
1269 avio_rb16(pb
); /* frames per samples */
1271 len
= avio_r8(pb
); /* codec name, pascal string */
1274 mov_read_mac_string(c
, pb
, len
, codec_name
, sizeof(codec_name
));
1276 avio_skip(pb
, 31 - len
);
1279 av_dict_set(&st
->metadata
, "encoder", codec_name
, 0);
1281 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1282 if (!memcmp(codec_name
, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1283 st
->codec
->codec_tag
= MKTAG('I', '4', '2', '0');
1284 st
->codec
->width
&= ~1;
1285 st
->codec
->height
&= ~1;
1287 /* Flash Media Server uses tag H263 with Sorenson Spark */
1288 if (st
->codec
->codec_tag
== MKTAG('H','2','6','3') &&
1289 !memcmp(codec_name
, "Sorenson H263", 13))
1290 st
->codec
->codec_id
= AV_CODEC_ID_FLV1
;
1292 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* depth */
1293 color_table_id
= avio_rb16(pb
); /* colortable id */
1294 av_dlog(c
->fc
, "depth %d, ctab id %d\n",
1295 st
->codec
->bits_per_coded_sample
, color_table_id
);
1296 /* figure out the palette situation */
1297 color_depth
= st
->codec
->bits_per_coded_sample
& 0x1F;
1298 color_greyscale
= st
->codec
->bits_per_coded_sample
& 0x20;
1299 /* Do not create a greyscale palette for cinepak */
1300 if (color_greyscale
&& st
->codec
->codec_id
== AV_CODEC_ID_CINEPAK
)
1303 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1304 if ((color_depth
== 2) || (color_depth
== 4) || (color_depth
== 8)) {
1305 /* for palette traversal */
1306 unsigned int color_start
, color_count
, color_end
;
1307 unsigned char a
, r
, g
, b
;
1309 if (color_greyscale
) {
1310 int color_index
, color_dec
;
1311 /* compute the greyscale palette */
1312 st
->codec
->bits_per_coded_sample
= color_depth
;
1313 color_count
= 1 << color_depth
;
1315 color_dec
= 256 / (color_count
- 1);
1316 for (j
= 0; j
< color_count
; j
++) {
1317 r
= g
= b
= color_index
;
1318 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1319 color_index
-= color_dec
;
1320 if (color_index
< 0)
1323 } else if (color_table_id
) {
1324 const uint8_t *color_table
;
1325 /* if flag bit 3 is set, use the default palette */
1326 color_count
= 1 << color_depth
;
1327 if (color_depth
== 2)
1328 color_table
= ff_qt_default_palette_4
;
1329 else if (color_depth
== 4)
1330 color_table
= ff_qt_default_palette_16
;
1332 color_table
= ff_qt_default_palette_256
;
1334 for (j
= 0; j
< color_count
; j
++) {
1335 r
= color_table
[j
* 3 + 0];
1336 g
= color_table
[j
* 3 + 1];
1337 b
= color_table
[j
* 3 + 2];
1338 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1341 /* load the palette from the file */
1342 color_start
= avio_rb32(pb
);
1343 color_count
= avio_rb16(pb
);
1344 color_end
= avio_rb16(pb
);
1345 if ((color_start
<= 255) && (color_end
<= 255)) {
1346 for (j
= color_start
; j
<= color_end
; j
++) {
1347 /* each A, R, G, or B component is 16 bits;
1348 * only use the top 8 bits */
1357 sc
->palette
[j
] = (a
<< 24 ) | (r
<< 16) | (g
<< 8) | (b
);
1361 sc
->has_palette
= 1;
1365 static void mov_parse_stsd_audio(MOVContext
*c
, AVIOContext
*pb
,
1366 AVStream
*st
, MOVStreamContext
*sc
)
1368 int bits_per_sample
, flags
;
1369 uint16_t version
= avio_rb16(pb
);
1370 AVDictionaryEntry
*compatible_brands
= av_dict_get(c
->fc
->metadata
, "compatible_brands", NULL
, AV_DICT_MATCH_CASE
);
1372 avio_rb16(pb
); /* revision level */
1373 avio_rb32(pb
); /* vendor */
1375 st
->codec
->channels
= avio_rb16(pb
); /* channel count */
1376 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* sample size */
1377 av_dlog(c
->fc
, "audio channels %d\n", st
->codec
->channels
);
1379 sc
->audio_cid
= avio_rb16(pb
);
1380 avio_rb16(pb
); /* packet size = 0 */
1382 st
->codec
->sample_rate
= ((avio_rb32(pb
) >> 16));
1384 // Read QT version 1 fields. In version 0 these do not exist.
1385 av_dlog(c
->fc
, "version =%d, isom =%d\n", version
, c
->isom
);
1387 (compatible_brands
&& strstr(compatible_brands
->value
, "qt "))) {
1390 sc
->samples_per_frame
= avio_rb32(pb
);
1391 avio_rb32(pb
); /* bytes per packet */
1392 sc
->bytes_per_frame
= avio_rb32(pb
);
1393 avio_rb32(pb
); /* bytes per sample */
1394 } else if (version
== 2) {
1395 avio_rb32(pb
); /* sizeof struct only */
1396 st
->codec
->sample_rate
= av_int2double(avio_rb64(pb
));
1397 st
->codec
->channels
= avio_rb32(pb
);
1398 avio_rb32(pb
); /* always 0x7F000000 */
1399 st
->codec
->bits_per_coded_sample
= avio_rb32(pb
);
1401 flags
= avio_rb32(pb
); /* lpcm format specific flag */
1402 sc
->bytes_per_frame
= avio_rb32(pb
);
1403 sc
->samples_per_frame
= avio_rb32(pb
);
1404 if (st
->codec
->codec_tag
== MKTAG('l','p','c','m'))
1405 st
->codec
->codec_id
=
1406 ff_mov_get_lpcm_codec_id(st
->codec
->bits_per_coded_sample
,
1411 switch (st
->codec
->codec_id
) {
1412 case AV_CODEC_ID_PCM_S8
:
1413 case AV_CODEC_ID_PCM_U8
:
1414 if (st
->codec
->bits_per_coded_sample
== 16)
1415 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16BE
;
1417 case AV_CODEC_ID_PCM_S16LE
:
1418 case AV_CODEC_ID_PCM_S16BE
:
1419 if (st
->codec
->bits_per_coded_sample
== 8)
1420 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S8
;
1421 else if (st
->codec
->bits_per_coded_sample
== 24)
1422 st
->codec
->codec_id
=
1423 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE
?
1424 AV_CODEC_ID_PCM_S24BE
: AV_CODEC_ID_PCM_S24LE
;
1426 /* set values for old format before stsd version 1 appeared */
1427 case AV_CODEC_ID_MACE3
:
1428 sc
->samples_per_frame
= 6;
1429 sc
->bytes_per_frame
= 2 * st
->codec
->channels
;
1431 case AV_CODEC_ID_MACE6
:
1432 sc
->samples_per_frame
= 6;
1433 sc
->bytes_per_frame
= 1 * st
->codec
->channels
;
1435 case AV_CODEC_ID_ADPCM_IMA_QT
:
1436 sc
->samples_per_frame
= 64;
1437 sc
->bytes_per_frame
= 34 * st
->codec
->channels
;
1439 case AV_CODEC_ID_GSM
:
1440 sc
->samples_per_frame
= 160;
1441 sc
->bytes_per_frame
= 33;
1447 bits_per_sample
= av_get_bits_per_sample(st
->codec
->codec_id
);
1448 if (bits_per_sample
) {
1449 st
->codec
->bits_per_coded_sample
= bits_per_sample
;
1450 sc
->sample_size
= (bits_per_sample
>> 3) * st
->codec
->channels
;
1454 static void mov_parse_stsd_subtitle(MOVContext
*c
, AVIOContext
*pb
,
1455 AVStream
*st
, MOVStreamContext
*sc
,
1458 // ttxt stsd contains display flags, justification, background
1459 // color, fonts, and default styles, so fake an atom to read it
1460 MOVAtom fake_atom
= { .size
= size
};
1461 // mp4s contains a regular esds atom
1462 if (st
->codec
->codec_tag
!= AV_RL32("mp4s"))
1463 mov_read_glbl(c
, pb
, fake_atom
);
1464 st
->codec
->width
= sc
->width
;
1465 st
->codec
->height
= sc
->height
;
1468 static uint32_t yuv_to_rgba(uint32_t ycbcr
)
1473 y
= (ycbcr
>> 16) & 0xFF;
1474 cr
= (ycbcr
>> 8) & 0xFF;
1477 b
= av_clip_uint8(1.164 * (y
- 16) + 2.018 * (cb
- 128));
1478 g
= av_clip_uint8(1.164 * (y
- 16) - 0.813 * (cr
- 128) - 0.391 * (cb
- 128));
1479 r
= av_clip_uint8(1.164 * (y
- 16) + 1.596 * (cr
- 128));
1481 return (r
<< 16) | (g
<< 8) | b
;
1484 static int mov_rewrite_dvd_sub_extradata(AVStream
*st
)
1486 char buf
[256] = {0};
1487 uint8_t *src
= st
->codec
->extradata
;
1490 if (st
->codec
->extradata_size
!= 64)
1493 if (st
->codec
->width
> 0 && st
->codec
->height
> 0)
1494 snprintf(buf
, sizeof(buf
), "size: %dx%d\n",
1495 st
->codec
->width
, st
->codec
->height
);
1496 av_strlcat(buf
, "palette: ", sizeof(buf
));
1498 for (i
= 0; i
< 16; i
++) {
1499 uint32_t yuv
= AV_RB32(src
+ i
* 4);
1500 uint32_t rgba
= yuv_to_rgba(yuv
);
1502 av_strlcatf(buf
, sizeof(buf
), "%06"PRIx32
"%s", rgba
, i
!= 15 ? ", " : "");
1505 if (av_strlcat(buf
, "\n", sizeof(buf
)) >= sizeof(buf
))
1508 av_freep(&st
->codec
->extradata
);
1509 st
->codec
->extradata_size
= 0;
1510 st
->codec
->extradata
= av_mallocz(strlen(buf
) + FF_INPUT_BUFFER_PADDING_SIZE
);
1511 if (!st
->codec
->extradata
)
1512 return AVERROR(ENOMEM
);
1513 st
->codec
->extradata_size
= strlen(buf
);
1514 memcpy(st
->codec
->extradata
, buf
, st
->codec
->extradata_size
);
1519 static int mov_parse_stsd_data(MOVContext
*c
, AVIOContext
*pb
,
1520 AVStream
*st
, MOVStreamContext
*sc
,
1523 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d')) {
1524 if (ff_get_extradata(st
->codec
, pb
, size
) < 0)
1525 return AVERROR(ENOMEM
);
1527 MOVStreamContext
*tmcd_ctx
= st
->priv_data
;
1529 val
= AV_RB32(st
->codec
->extradata
+ 4);
1530 tmcd_ctx
->tmcd_flags
= val
;
1532 st
->codec
->flags2
|= CODEC_FLAG2_DROP_FRAME_TIMECODE
;
1533 st
->codec
->time_base
.den
= st
->codec
->extradata
[16]; /* number of frame */
1534 st
->codec
->time_base
.num
= 1;
1536 uint32_t len
= AV_RB32(st
->codec
->extradata
+ 18); /* name atom length */
1537 uint32_t format
= AV_RB32(st
->codec
->extradata
+ 22);
1538 if (format
== AV_RB32("name") && (int64_t)size
>= (int64_t)len
+ 18) {
1539 uint16_t str_size
= AV_RB16(st
->codec
->extradata
+ 26); /* string length */
1540 if (str_size
> 0 && size
>= (int)str_size
+ 26) {
1541 char *reel_name
= av_malloc(str_size
+ 1);
1543 return AVERROR(ENOMEM
);
1544 memcpy(reel_name
, st
->codec
->extradata
+ 30, str_size
);
1545 reel_name
[str_size
] = 0; /* Add null terminator */
1546 /* don't add reel_name if emtpy string */
1547 if (*reel_name
== 0) {
1550 av_dict_set(&st
->metadata
, "reel_name", reel_name
, AV_DICT_DONT_STRDUP_VAL
);
1557 /* other codec type, just skip (rtp, mp4s ...) */
1558 avio_skip(pb
, size
);
1563 static int mov_finalize_stsd_codec(MOVContext
*c
, AVIOContext
*pb
,
1564 AVStream
*st
, MOVStreamContext
*sc
)
1566 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
1567 !st
->codec
->sample_rate
&& sc
->time_scale
> 1)
1568 st
->codec
->sample_rate
= sc
->time_scale
;
1570 /* special codec parameters handling */
1571 switch (st
->codec
->codec_id
) {
1572 #if CONFIG_DV_DEMUXER
1573 case AV_CODEC_ID_DVAUDIO
:
1574 c
->dv_fctx
= avformat_alloc_context();
1575 c
->dv_demux
= avpriv_dv_init_demux(c
->dv_fctx
);
1577 av_log(c
->fc
, AV_LOG_ERROR
, "dv demux context init error\n");
1578 return AVERROR(ENOMEM
);
1580 sc
->dv_audio_container
= 1;
1581 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16LE
;
1584 /* no ifdef since parameters are always those */
1585 case AV_CODEC_ID_QCELP
:
1586 st
->codec
->channels
= 1;
1587 // force sample rate for qcelp when not stored in mov
1588 if (st
->codec
->codec_tag
!= MKTAG('Q','c','l','p'))
1589 st
->codec
->sample_rate
= 8000;
1590 // FIXME: Why is the following needed for some files?
1591 sc
->samples_per_frame
= 160;
1592 if (!sc
->bytes_per_frame
)
1593 sc
->bytes_per_frame
= 35;
1595 case AV_CODEC_ID_AMR_NB
:
1596 st
->codec
->channels
= 1;
1597 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1598 st
->codec
->sample_rate
= 8000;
1600 case AV_CODEC_ID_AMR_WB
:
1601 st
->codec
->channels
= 1;
1602 st
->codec
->sample_rate
= 16000;
1604 case AV_CODEC_ID_MP2
:
1605 case AV_CODEC_ID_MP3
:
1606 /* force type after stsd for m1a hdlr */
1607 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1608 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1610 case AV_CODEC_ID_GSM
:
1611 case AV_CODEC_ID_ADPCM_MS
:
1612 case AV_CODEC_ID_ADPCM_IMA_WAV
:
1613 case AV_CODEC_ID_ILBC
:
1614 case AV_CODEC_ID_MACE3
:
1615 case AV_CODEC_ID_MACE6
:
1616 case AV_CODEC_ID_QDM2
:
1617 st
->codec
->block_align
= sc
->bytes_per_frame
;
1619 case AV_CODEC_ID_ALAC
:
1620 if (st
->codec
->extradata_size
== 36) {
1621 st
->codec
->channels
= AV_RB8 (st
->codec
->extradata
+ 21);
1622 st
->codec
->sample_rate
= AV_RB32(st
->codec
->extradata
+ 32);
1625 case AV_CODEC_ID_AC3
:
1626 case AV_CODEC_ID_MPEG1VIDEO
:
1627 case AV_CODEC_ID_VC1
:
1628 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1636 static int mov_skip_multiple_stsd(MOVContext
*c
, AVIOContext
*pb
,
1637 int codec_tag
, int format
,
1640 int video_codec_id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1643 (codec_tag
!= format
&&
1644 (c
->fc
->video_codec_id
? video_codec_id
!= c
->fc
->video_codec_id
1645 : codec_tag
!= MKTAG('j','p','e','g')))) {
1646 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1647 * export it as a separate AVStream but this needs a few changes
1648 * in the MOV demuxer, patch welcome. */
1650 av_log(c
->fc
, AV_LOG_WARNING
, "multiple fourcc not supported\n");
1651 avio_skip(pb
, size
);
1654 if ( codec_tag
== AV_RL32("avc1") ||
1655 codec_tag
== AV_RL32("hvc1") ||
1656 codec_tag
== AV_RL32("hev1")
1658 av_log(c
->fc
, AV_LOG_WARNING
, "Concatenated H.264 or H.265 might not play correctly.\n");
1663 int ff_mov_read_stsd_entries(MOVContext
*c
, AVIOContext
*pb
, int entries
)
1666 MOVStreamContext
*sc
;
1667 int pseudo_stream_id
;
1669 if (c
->fc
->nb_streams
< 1)
1671 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1674 for (pseudo_stream_id
= 0;
1675 pseudo_stream_id
< entries
&& !pb
->eof_reached
;
1676 pseudo_stream_id
++) {
1677 //Parsing Sample description table
1679 int ret
, dref_id
= 1;
1680 MOVAtom a
= { AV_RL32("stsd") };
1681 int64_t start_pos
= avio_tell(pb
);
1682 int64_t size
= avio_rb32(pb
); /* size */
1683 uint32_t format
= avio_rl32(pb
); /* data format */
1686 avio_rb32(pb
); /* reserved */
1687 avio_rb16(pb
); /* reserved */
1688 dref_id
= avio_rb16(pb
);
1689 }else if (size
<= 7){
1690 av_log(c
->fc
, AV_LOG_ERROR
, "invalid size %"PRId64
" in stsd\n", size
);
1691 return AVERROR_INVALIDDATA
;
1694 if (mov_skip_multiple_stsd(c
, pb
, st
->codec
->codec_tag
, format
,
1695 size
- (avio_tell(pb
) - start_pos
)))
1698 sc
->pseudo_stream_id
= st
->codec
->codec_tag
? -1 : pseudo_stream_id
;
1699 sc
->dref_id
= dref_id
;
1701 id
= mov_codec_id(st
, format
);
1703 av_dlog(c
->fc
, "size=%"PRId64
" 4CC= %c%c%c%c codec_type=%d\n", size
,
1704 (format
>> 0) & 0xff, (format
>> 8) & 0xff, (format
>> 16) & 0xff,
1705 (format
>> 24) & 0xff, st
->codec
->codec_type
);
1707 if (st
->codec
->codec_type
==AVMEDIA_TYPE_VIDEO
) {
1708 st
->codec
->codec_id
= id
;
1709 mov_parse_stsd_video(c
, pb
, st
, sc
);
1710 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_AUDIO
) {
1711 st
->codec
->codec_id
= id
;
1712 mov_parse_stsd_audio(c
, pb
, st
, sc
);
1713 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_SUBTITLE
){
1714 st
->codec
->codec_id
= id
;
1715 mov_parse_stsd_subtitle(c
, pb
, st
, sc
,
1716 size
- (avio_tell(pb
) - start_pos
));
1718 ret
= mov_parse_stsd_data(c
, pb
, st
, sc
,
1719 size
- (avio_tell(pb
) - start_pos
));
1723 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1724 a
.size
= size
- (avio_tell(pb
) - start_pos
);
1726 if ((ret
= mov_read_default(c
, pb
, a
)) < 0)
1728 } else if (a
.size
> 0)
1729 avio_skip(pb
, a
.size
);
1732 if (pb
->eof_reached
)
1735 return mov_finalize_stsd_codec(c
, pb
, st
, sc
);
1738 static int mov_read_stsd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1742 avio_r8(pb
); /* version */
1743 avio_rb24(pb
); /* flags */
1744 entries
= avio_rb32(pb
);
1746 return ff_mov_read_stsd_entries(c
, pb
, entries
);
1749 static int mov_read_stsc(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1752 MOVStreamContext
*sc
;
1753 unsigned int i
, entries
;
1755 if (c
->fc
->nb_streams
< 1)
1757 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1760 avio_r8(pb
); /* version */
1761 avio_rb24(pb
); /* flags */
1763 entries
= avio_rb32(pb
);
1765 av_dlog(c
->fc
, "track[%i].stsc.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
1769 if (entries
>= UINT_MAX
/ sizeof(*sc
->stsc_data
))
1770 return AVERROR_INVALIDDATA
;
1771 sc
->stsc_data
= av_malloc(entries
* sizeof(*sc
->stsc_data
));
1773 return AVERROR(ENOMEM
);
1775 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1776 sc
->stsc_data
[i
].first
= avio_rb32(pb
);
1777 sc
->stsc_data
[i
].count
= avio_rb32(pb
);
1778 sc
->stsc_data
[i
].id
= avio_rb32(pb
);
1783 if (pb
->eof_reached
)
1789 static int mov_read_stps(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1792 MOVStreamContext
*sc
;
1793 unsigned i
, entries
;
1795 if (c
->fc
->nb_streams
< 1)
1797 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1800 avio_rb32(pb
); // version + flags
1802 entries
= avio_rb32(pb
);
1803 if (entries
>= UINT_MAX
/ sizeof(*sc
->stps_data
))
1804 return AVERROR_INVALIDDATA
;
1805 sc
->stps_data
= av_malloc(entries
* sizeof(*sc
->stps_data
));
1807 return AVERROR(ENOMEM
);
1809 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1810 sc
->stps_data
[i
] = avio_rb32(pb
);
1811 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1816 if (pb
->eof_reached
)
1822 static int mov_read_stss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1825 MOVStreamContext
*sc
;
1826 unsigned int i
, entries
;
1828 if (c
->fc
->nb_streams
< 1)
1830 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1833 avio_r8(pb
); /* version */
1834 avio_rb24(pb
); /* flags */
1836 entries
= avio_rb32(pb
);
1838 av_dlog(c
->fc
, "keyframe_count = %d\n", entries
);
1842 sc
->keyframe_absent
= 1;
1843 if (!st
->need_parsing
&& st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
)
1844 st
->need_parsing
= AVSTREAM_PARSE_HEADERS
;
1847 if (entries
>= UINT_MAX
/ sizeof(int))
1848 return AVERROR_INVALIDDATA
;
1849 sc
->keyframes
= av_malloc(entries
* sizeof(int));
1851 return AVERROR(ENOMEM
);
1853 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1854 sc
->keyframes
[i
] = avio_rb32(pb
);
1855 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1858 sc
->keyframe_count
= i
;
1860 if (pb
->eof_reached
)
1866 static int mov_read_stsz(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1869 MOVStreamContext
*sc
;
1870 unsigned int i
, entries
, sample_size
, field_size
, num_bytes
;
1874 if (c
->fc
->nb_streams
< 1)
1876 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1879 avio_r8(pb
); /* version */
1880 avio_rb24(pb
); /* flags */
1882 if (atom
.type
== MKTAG('s','t','s','z')) {
1883 sample_size
= avio_rb32(pb
);
1884 if (!sc
->sample_size
) /* do not overwrite value computed in stsd */
1885 sc
->sample_size
= sample_size
;
1886 sc
->stsz_sample_size
= sample_size
;
1890 avio_rb24(pb
); /* reserved */
1891 field_size
= avio_r8(pb
);
1893 entries
= avio_rb32(pb
);
1895 av_dlog(c
->fc
, "sample_size = %d sample_count = %d\n", sc
->sample_size
, entries
);
1897 sc
->sample_count
= entries
;
1901 if (field_size
!= 4 && field_size
!= 8 && field_size
!= 16 && field_size
!= 32) {
1902 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample field size %d\n", field_size
);
1903 return AVERROR_INVALIDDATA
;
1908 if (entries
>= UINT_MAX
/ sizeof(int) || entries
>= (UINT_MAX
- 4) / field_size
)
1909 return AVERROR_INVALIDDATA
;
1910 sc
->sample_sizes
= av_malloc(entries
* sizeof(int));
1911 if (!sc
->sample_sizes
)
1912 return AVERROR(ENOMEM
);
1914 num_bytes
= (entries
*field_size
+4)>>3;
1916 buf
= av_malloc(num_bytes
+FF_INPUT_BUFFER_PADDING_SIZE
);
1918 av_freep(&sc
->sample_sizes
);
1919 return AVERROR(ENOMEM
);
1922 if (avio_read(pb
, buf
, num_bytes
) < num_bytes
) {
1923 av_freep(&sc
->sample_sizes
);
1925 return AVERROR_INVALIDDATA
;
1928 init_get_bits(&gb
, buf
, 8*num_bytes
);
1930 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1931 sc
->sample_sizes
[i
] = get_bits_long(&gb
, field_size
);
1932 sc
->data_size
+= sc
->sample_sizes
[i
];
1935 sc
->sample_count
= i
;
1937 if (pb
->eof_reached
)
1944 static int mov_read_stts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1947 MOVStreamContext
*sc
;
1948 unsigned int i
, entries
;
1950 int64_t total_sample_count
=0;
1952 if (c
->fc
->nb_streams
< 1)
1954 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1957 avio_r8(pb
); /* version */
1958 avio_rb24(pb
); /* flags */
1959 entries
= avio_rb32(pb
);
1961 av_dlog(c
->fc
, "track[%i].stts.entries = %i\n",
1962 c
->fc
->nb_streams
-1, entries
);
1964 if (entries
>= UINT_MAX
/ sizeof(*sc
->stts_data
))
1967 av_free(sc
->stts_data
);
1968 sc
->stts_data
= av_malloc(entries
* sizeof(*sc
->stts_data
));
1970 return AVERROR(ENOMEM
);
1972 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1973 int sample_duration
;
1976 sample_count
=avio_rb32(pb
);
1977 sample_duration
= avio_rb32(pb
);
1979 /* sample_duration < 0 is invalid based on the spec */
1980 if (sample_duration
< 0) {
1981 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
1982 sample_duration
, i
, c
->fc
->nb_streams
-1);
1983 sample_duration
= 1;
1985 if (sample_count
< 0) {
1986 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample_count=%d\n", sample_count
);
1987 return AVERROR_INVALIDDATA
;
1989 sc
->stts_data
[i
].count
= sample_count
;
1990 sc
->stts_data
[i
].duration
= sample_duration
;
1992 av_dlog(c
->fc
, "sample_count=%d, sample_duration=%d\n",
1993 sample_count
, sample_duration
);
1997 && sample_count
== 1
1998 && total_sample_count
> 100
1999 && sample_duration
/10 > duration
/ total_sample_count
)
2000 sample_duration
= duration
/ total_sample_count
;
2001 duration
+=(int64_t)sample_duration
*sample_count
;
2002 total_sample_count
+=sample_count
;
2007 sc
->duration_for_fps
+= duration
;
2008 sc
->nb_frames_for_fps
+= total_sample_count
;
2010 if (pb
->eof_reached
)
2013 st
->nb_frames
= total_sample_count
;
2015 st
->duration
= duration
;
2016 sc
->track_end
= duration
;
2020 static void mov_update_dts_shift(MOVStreamContext
*sc
, int duration
)
2023 sc
->dts_shift
= FFMAX(sc
->dts_shift
, -duration
);
2027 static int mov_read_ctts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2030 MOVStreamContext
*sc
;
2031 unsigned int i
, entries
;
2033 if (c
->fc
->nb_streams
< 1)
2035 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2038 avio_r8(pb
); /* version */
2039 avio_rb24(pb
); /* flags */
2040 entries
= avio_rb32(pb
);
2042 av_dlog(c
->fc
, "track[%i].ctts.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
2046 if (entries
>= UINT_MAX
/ sizeof(*sc
->ctts_data
))
2047 return AVERROR_INVALIDDATA
;
2048 sc
->ctts_data
= av_malloc(entries
* sizeof(*sc
->ctts_data
));
2050 return AVERROR(ENOMEM
);
2052 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2053 int count
=avio_rb32(pb
);
2054 int duration
=avio_rb32(pb
);
2056 sc
->ctts_data
[i
].count
= count
;
2057 sc
->ctts_data
[i
].duration
= duration
;
2059 av_dlog(c
->fc
, "count=%d, duration=%d\n",
2062 if (FFABS(duration
) > (1<<28) && i
+2<entries
) {
2063 av_log(c
->fc
, AV_LOG_WARNING
, "CTTS invalid\n");
2064 av_freep(&sc
->ctts_data
);
2070 mov_update_dts_shift(sc
, duration
);
2075 if (pb
->eof_reached
)
2078 av_dlog(c
->fc
, "dts shift %d\n", sc
->dts_shift
);
2083 static int mov_read_sbgp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2086 MOVStreamContext
*sc
;
2087 unsigned int i
, entries
;
2089 uint32_t grouping_type
;
2091 if (c
->fc
->nb_streams
< 1)
2093 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2096 version
= avio_r8(pb
); /* version */
2097 avio_rb24(pb
); /* flags */
2098 grouping_type
= avio_rl32(pb
);
2099 if (grouping_type
!= MKTAG( 'r','a','p',' '))
2100 return 0; /* only support 'rap ' grouping */
2102 avio_rb32(pb
); /* grouping_type_parameter */
2104 entries
= avio_rb32(pb
);
2107 if (entries
>= UINT_MAX
/ sizeof(*sc
->rap_group
))
2108 return AVERROR_INVALIDDATA
;
2109 sc
->rap_group
= av_malloc(entries
* sizeof(*sc
->rap_group
));
2111 return AVERROR(ENOMEM
);
2113 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2114 sc
->rap_group
[i
].count
= avio_rb32(pb
); /* sample_count */
2115 sc
->rap_group
[i
].index
= avio_rb32(pb
); /* group_description_index */
2118 sc
->rap_group_count
= i
;
2120 return pb
->eof_reached
? AVERROR_EOF
: 0;
2123 static void mov_build_index(MOVContext
*mov
, AVStream
*st
)
2125 MOVStreamContext
*sc
= st
->priv_data
;
2126 int64_t current_offset
;
2127 int64_t current_dts
= 0;
2128 unsigned int stts_index
= 0;
2129 unsigned int stsc_index
= 0;
2130 unsigned int stss_index
= 0;
2131 unsigned int stps_index
= 0;
2133 uint64_t stream_size
= 0;
2135 /* adjust first dts according to edit list */
2136 if ((sc
->empty_duration
|| sc
->start_time
) && mov
->time_scale
> 0) {
2137 if (sc
->empty_duration
)
2138 sc
->empty_duration
= av_rescale(sc
->empty_duration
, sc
->time_scale
, mov
->time_scale
);
2139 sc
->time_offset
= sc
->start_time
- sc
->empty_duration
;
2140 current_dts
= -sc
->time_offset
;
2141 if (sc
->ctts_count
>0 && sc
->stts_count
>0 &&
2142 sc
->ctts_data
[0].duration
/ FFMAX(sc
->stts_data
[0].duration
, 1) > 16) {
2143 /* more than 16 frames delay, dts are likely wrong
2144 this happens with files created by iMovie */
2146 st
->codec
->has_b_frames
= 1;
2150 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2151 if (!(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
2152 sc
->stts_count
== 1 && sc
->stts_data
[0].duration
== 1)) {
2153 unsigned int current_sample
= 0;
2154 unsigned int stts_sample
= 0;
2155 unsigned int sample_size
;
2156 unsigned int distance
= 0;
2157 unsigned int rap_group_index
= 0;
2158 unsigned int rap_group_sample
= 0;
2159 int rap_group_present
= sc
->rap_group_count
&& sc
->rap_group
;
2160 int key_off
= (sc
->keyframe_count
&& sc
->keyframes
[0] > 0) || (sc
->stps_count
&& sc
->stps_data
[0] > 0);
2162 current_dts
-= sc
->dts_shift
;
2164 if (!sc
->sample_count
|| st
->nb_index_entries
)
2166 if (sc
->sample_count
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2168 if (av_reallocp_array(&st
->index_entries
,
2169 st
->nb_index_entries
+ sc
->sample_count
,
2170 sizeof(*st
->index_entries
)) < 0) {
2171 st
->nb_index_entries
= 0;
2174 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ sc
->sample_count
) * sizeof(*st
->index_entries
);
2176 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2177 int64_t next_offset
= i
+1 < sc
->chunk_count
? sc
->chunk_offsets
[i
+1] : INT64_MAX
;
2178 current_offset
= sc
->chunk_offsets
[i
];
2179 while (stsc_index
+ 1 < sc
->stsc_count
&&
2180 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2183 if (next_offset
> current_offset
&& sc
->sample_size
>0 && sc
->sample_size
< sc
->stsz_sample_size
&&
2184 sc
->stsc_data
[stsc_index
].count
* (int64_t)sc
->stsz_sample_size
> next_offset
- current_offset
) {
2185 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too large), ignoring\n", sc
->stsz_sample_size
);
2186 sc
->stsz_sample_size
= sc
->sample_size
;
2188 if (sc
->stsz_sample_size
>0 && sc
->stsz_sample_size
< sc
->sample_size
) {
2189 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too small), ignoring\n", sc
->stsz_sample_size
);
2190 sc
->stsz_sample_size
= sc
->sample_size
;
2193 for (j
= 0; j
< sc
->stsc_data
[stsc_index
].count
; j
++) {
2195 if (current_sample
>= sc
->sample_count
) {
2196 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong sample count\n");
2200 if (!sc
->keyframe_absent
&& (!sc
->keyframe_count
|| current_sample
+key_off
== sc
->keyframes
[stss_index
])) {
2202 if (stss_index
+ 1 < sc
->keyframe_count
)
2204 } else if (sc
->stps_count
&& current_sample
+key_off
== sc
->stps_data
[stps_index
]) {
2206 if (stps_index
+ 1 < sc
->stps_count
)
2209 if (rap_group_present
&& rap_group_index
< sc
->rap_group_count
) {
2210 if (sc
->rap_group
[rap_group_index
].index
> 0)
2212 if (++rap_group_sample
== sc
->rap_group
[rap_group_index
].count
) {
2213 rap_group_sample
= 0;
2217 if (sc
->keyframe_absent
2219 && !rap_group_present
2220 && (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
|| (i
==0 && j
==0)))
2224 sample_size
= sc
->stsz_sample_size
> 0 ? sc
->stsz_sample_size
: sc
->sample_sizes
[current_sample
];
2225 if (sc
->pseudo_stream_id
== -1 ||
2226 sc
->stsc_data
[stsc_index
].id
- 1 == sc
->pseudo_stream_id
) {
2227 AVIndexEntry
*e
= &st
->index_entries
[st
->nb_index_entries
++];
2228 e
->pos
= current_offset
;
2229 e
->timestamp
= current_dts
;
2230 e
->size
= sample_size
;
2231 e
->min_distance
= distance
;
2232 e
->flags
= keyframe
? AVINDEX_KEYFRAME
: 0;
2233 av_dlog(mov
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2234 "size %d, distance %d, keyframe %d\n", st
->index
, current_sample
,
2235 current_offset
, current_dts
, sample_size
, distance
, keyframe
);
2236 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& st
->nb_index_entries
< 100)
2237 ff_rfps_add_frame(mov
->fc
, st
, current_dts
);
2240 current_offset
+= sample_size
;
2241 stream_size
+= sample_size
;
2242 current_dts
+= sc
->stts_data
[stts_index
].duration
;
2246 if (stts_index
+ 1 < sc
->stts_count
&& stts_sample
== sc
->stts_data
[stts_index
].count
) {
2252 if (st
->duration
> 0)
2253 st
->codec
->bit_rate
= stream_size
*8*sc
->time_scale
/st
->duration
;
2255 unsigned chunk_samples
, total
= 0;
2257 // compute total chunk count
2258 for (i
= 0; i
< sc
->stsc_count
; i
++) {
2259 unsigned count
, chunk_count
;
2261 chunk_samples
= sc
->stsc_data
[i
].count
;
2262 if (i
!= sc
->stsc_count
- 1 &&
2263 sc
->samples_per_frame
&& chunk_samples
% sc
->samples_per_frame
) {
2264 av_log(mov
->fc
, AV_LOG_ERROR
, "error unaligned chunk\n");
2268 if (sc
->samples_per_frame
>= 160) { // gsm
2269 count
= chunk_samples
/ sc
->samples_per_frame
;
2270 } else if (sc
->samples_per_frame
> 1) {
2271 unsigned samples
= (1024/sc
->samples_per_frame
)*sc
->samples_per_frame
;
2272 count
= (chunk_samples
+samples
-1) / samples
;
2274 count
= (chunk_samples
+1023) / 1024;
2277 if (i
< sc
->stsc_count
- 1)
2278 chunk_count
= sc
->stsc_data
[i
+1].first
- sc
->stsc_data
[i
].first
;
2280 chunk_count
= sc
->chunk_count
- (sc
->stsc_data
[i
].first
- 1);
2281 total
+= chunk_count
* count
;
2284 av_dlog(mov
->fc
, "chunk count %d\n", total
);
2285 if (total
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2287 if (av_reallocp_array(&st
->index_entries
,
2288 st
->nb_index_entries
+ total
,
2289 sizeof(*st
->index_entries
)) < 0) {
2290 st
->nb_index_entries
= 0;
2293 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ total
) * sizeof(*st
->index_entries
);
2296 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2297 current_offset
= sc
->chunk_offsets
[i
];
2298 if (stsc_index
+ 1 < sc
->stsc_count
&&
2299 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2301 chunk_samples
= sc
->stsc_data
[stsc_index
].count
;
2303 while (chunk_samples
> 0) {
2305 unsigned size
, samples
;
2307 if (sc
->samples_per_frame
>= 160) { // gsm
2308 samples
= sc
->samples_per_frame
;
2309 size
= sc
->bytes_per_frame
;
2311 if (sc
->samples_per_frame
> 1) {
2312 samples
= FFMIN((1024 / sc
->samples_per_frame
)*
2313 sc
->samples_per_frame
, chunk_samples
);
2314 size
= (samples
/ sc
->samples_per_frame
) * sc
->bytes_per_frame
;
2316 samples
= FFMIN(1024, chunk_samples
);
2317 size
= samples
* sc
->sample_size
;
2321 if (st
->nb_index_entries
>= total
) {
2322 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong chunk count %d\n", total
);
2325 e
= &st
->index_entries
[st
->nb_index_entries
++];
2326 e
->pos
= current_offset
;
2327 e
->timestamp
= current_dts
;
2329 e
->min_distance
= 0;
2330 e
->flags
= AVINDEX_KEYFRAME
;
2331 av_dlog(mov
->fc
, "AVIndex stream %d, chunk %d, offset %"PRIx64
", dts %"PRId64
", "
2332 "size %d, duration %d\n", st
->index
, i
, current_offset
, current_dts
,
2335 current_offset
+= size
;
2336 current_dts
+= samples
;
2337 chunk_samples
-= samples
;
2343 static int mov_open_dref(AVIOContext
**pb
, const char *src
, MOVDref
*ref
,
2344 AVIOInterruptCB
*int_cb
, int use_absolute_path
, AVFormatContext
*fc
)
2346 /* try relative path, we do not try the absolute because it can leak information about our
2347 system to an attacker */
2348 if (ref
->nlvl_to
> 0 && ref
->nlvl_from
> 0) {
2349 char filename
[1024];
2350 const char *src_path
;
2353 /* find a source dir */
2354 src_path
= strrchr(src
, '/');
2360 /* find a next level down to target */
2361 for (i
= 0, l
= strlen(ref
->path
) - 1; l
>= 0; l
--)
2362 if (ref
->path
[l
] == '/') {
2363 if (i
== ref
->nlvl_to
- 1)
2369 /* compose filename if next level down to target was found */
2370 if (i
== ref
->nlvl_to
- 1 && src_path
- src
< sizeof(filename
)) {
2371 memcpy(filename
, src
, src_path
- src
);
2372 filename
[src_path
- src
] = 0;
2374 for (i
= 1; i
< ref
->nlvl_from
; i
++)
2375 av_strlcat(filename
, "../", 1024);
2377 av_strlcat(filename
, ref
->path
+ l
+ 1, 1024);
2379 if (!avio_open2(pb
, filename
, AVIO_FLAG_READ
, int_cb
, NULL
))
2382 } else if (use_absolute_path
) {
2383 av_log(fc
, AV_LOG_WARNING
, "Using absolute path on user request, "
2384 "this is a possible security issue\n");
2385 if (!avio_open2(pb
, ref
->path
, AVIO_FLAG_READ
, int_cb
, NULL
))
2389 return AVERROR(ENOENT
);
2392 static void fix_timescale(MOVContext
*c
, MOVStreamContext
*sc
)
2394 if (sc
->time_scale
<= 0) {
2395 av_log(c
->fc
, AV_LOG_WARNING
, "stream %d, timescale not set\n", sc
->ffindex
);
2396 sc
->time_scale
= c
->time_scale
;
2397 if (sc
->time_scale
<= 0)
2402 static int mov_read_trak(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2405 MOVStreamContext
*sc
;
2408 st
= avformat_new_stream(c
->fc
, NULL
);
2409 if (!st
) return AVERROR(ENOMEM
);
2410 st
->id
= c
->fc
->nb_streams
;
2411 sc
= av_mallocz(sizeof(MOVStreamContext
));
2412 if (!sc
) return AVERROR(ENOMEM
);
2415 st
->codec
->codec_type
= AVMEDIA_TYPE_DATA
;
2416 sc
->ffindex
= st
->index
;
2418 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
2422 if (sc
->chunk_count
&& (!sc
->stts_count
|| !sc
->stsc_count
||
2423 (!sc
->sample_size
&& !sc
->sample_count
))) {
2424 av_log(c
->fc
, AV_LOG_ERROR
, "stream %d, missing mandatory atoms, broken header\n",
2429 fix_timescale(c
, sc
);
2431 avpriv_set_pts_info(st
, 64, 1, sc
->time_scale
);
2433 mov_build_index(c
, st
);
2435 if (sc
->dref_id
-1 < sc
->drefs_count
&& sc
->drefs
[sc
->dref_id
-1].path
) {
2436 MOVDref
*dref
= &sc
->drefs
[sc
->dref_id
- 1];
2437 if (mov_open_dref(&sc
->pb
, c
->fc
->filename
, dref
, &c
->fc
->interrupt_callback
,
2438 c
->use_absolute_path
, c
->fc
) < 0)
2439 av_log(c
->fc
, AV_LOG_ERROR
,
2440 "stream %d, error opening alias: path='%s', dir='%s', "
2441 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2442 st
->index
, dref
->path
, dref
->dir
, dref
->filename
,
2443 dref
->volume
, dref
->nlvl_from
, dref
->nlvl_to
);
2446 sc
->pb_is_copied
= 1;
2449 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
) {
2450 if (!st
->sample_aspect_ratio
.num
&&
2451 (st
->codec
->width
!= sc
->width
|| st
->codec
->height
!= sc
->height
)) {
2452 st
->sample_aspect_ratio
= av_d2q(((double)st
->codec
->height
* sc
->width
) /
2453 ((double)st
->codec
->width
* sc
->height
), INT_MAX
);
2456 #if FF_API_R_FRAME_RATE
2457 if (sc
->stts_count
== 1 || (sc
->stts_count
== 2 && sc
->stts_data
[1].count
== 1))
2458 av_reduce(&st
->r_frame_rate
.num
, &st
->r_frame_rate
.den
,
2459 sc
->time_scale
, sc
->stts_data
[0].duration
, INT_MAX
);
2463 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2464 if (!st
->codec
->extradata_size
&& st
->codec
->codec_id
== AV_CODEC_ID_H264
&&
2465 TAG_IS_AVCI(st
->codec
->codec_tag
)) {
2466 ret
= ff_generate_avci_extradata(st
);
2471 switch (st
->codec
->codec_id
) {
2472 #if CONFIG_H261_DECODER
2473 case AV_CODEC_ID_H261
:
2475 #if CONFIG_H263_DECODER
2476 case AV_CODEC_ID_H263
:
2478 #if CONFIG_MPEG4_DECODER
2479 case AV_CODEC_ID_MPEG4
:
2481 st
->codec
->width
= 0; /* let decoder init width/height */
2482 st
->codec
->height
= 0;
2486 /* Do not need those anymore. */
2487 av_freep(&sc
->chunk_offsets
);
2488 av_freep(&sc
->stsc_data
);
2489 av_freep(&sc
->sample_sizes
);
2490 av_freep(&sc
->keyframes
);
2491 av_freep(&sc
->stts_data
);
2492 av_freep(&sc
->stps_data
);
2493 av_freep(&sc
->rap_group
);
2498 static int mov_read_ilst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2501 c
->itunes_metadata
= 1;
2502 ret
= mov_read_default(c
, pb
, atom
);
2503 c
->itunes_metadata
= 0;
2507 static int mov_read_custom_2plus(MOVContext
*c
, AVIOContext
*pb
, int size
)
2509 int64_t end
= avio_tell(pb
) + size
;
2510 uint8_t *key
= NULL
, *val
= NULL
;
2513 MOVStreamContext
*sc
;
2515 if (c
->fc
->nb_streams
< 1)
2517 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2520 for (i
= 0; i
< 2; i
++) {
2524 if (end
- avio_tell(pb
) <= 12)
2527 len
= avio_rb32(pb
);
2528 tag
= avio_rl32(pb
);
2529 avio_skip(pb
, 4); // flags
2531 if (len
< 12 || len
- 12 > end
- avio_tell(pb
))
2535 if (tag
== MKTAG('n', 'a', 'm', 'e'))
2537 else if (tag
== MKTAG('d', 'a', 't', 'a') && len
> 4) {
2544 *p
= av_malloc(len
+ 1);
2547 avio_read(pb
, *p
, len
);
2552 if (strcmp(key
, "iTunSMPB") == 0) {
2553 int priming
, remainder
, samples
;
2554 if(sscanf(val
, "%*X %X %X %X", &priming
, &remainder
, &samples
) == 3){
2555 if(priming
>0 && priming
<16384)
2556 sc
->start_pad
= priming
;
2559 if (strcmp(key
, "cdec") != 0) {
2560 av_dict_set(&c
->fc
->metadata
, key
, val
,
2561 AV_DICT_DONT_STRDUP_KEY
| AV_DICT_DONT_STRDUP_VAL
);
2566 avio_seek(pb
, end
, SEEK_SET
);
2572 static int mov_read_custom(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2574 int64_t end
= avio_tell(pb
) + atom
.size
;
2580 len
= avio_rb32(pb
);
2581 tag
= avio_rl32(pb
);
2583 if (len
> atom
.size
)
2586 if (tag
== MKTAG('m', 'e', 'a', 'n') && len
> 12) {
2587 uint8_t domain
[128];
2590 avio_skip(pb
, 4); // flags
2593 domain_len
= avio_get_str(pb
, len
, domain
, sizeof(domain
));
2594 avio_skip(pb
, len
- domain_len
);
2595 return mov_read_custom_2plus(c
, pb
, end
- avio_tell(pb
));
2599 av_log(c
->fc
, AV_LOG_VERBOSE
,
2600 "Unhandled or malformed custom metadata of size %"PRId64
"\n", atom
.size
);
2604 static int mov_read_meta(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2606 while (atom
.size
> 8) {
2607 uint32_t tag
= avio_rl32(pb
);
2609 if (tag
== MKTAG('h','d','l','r')) {
2610 avio_seek(pb
, -8, SEEK_CUR
);
2612 return mov_read_default(c
, pb
, atom
);
2618 static int mov_read_tkhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2623 int64_t disp_transform
[2];
2624 int display_matrix
[3][3];
2626 MOVStreamContext
*sc
;
2630 if (c
->fc
->nb_streams
< 1)
2632 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2635 version
= avio_r8(pb
);
2636 flags
= avio_rb24(pb
);
2637 st
->disposition
|= (flags
& MOV_TKHD_FLAG_ENABLED
) ? AV_DISPOSITION_DEFAULT
: 0;
2643 avio_rb32(pb
); /* creation time */
2644 avio_rb32(pb
); /* modification time */
2646 st
->id
= (int)avio_rb32(pb
); /* track id (NOT 0 !)*/
2647 avio_rb32(pb
); /* reserved */
2649 /* highlevel (considering edits) duration in movie timebase */
2650 (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
);
2651 avio_rb32(pb
); /* reserved */
2652 avio_rb32(pb
); /* reserved */
2654 avio_rb16(pb
); /* layer */
2655 avio_rb16(pb
); /* alternate group */
2656 avio_rb16(pb
); /* volume */
2657 avio_rb16(pb
); /* reserved */
2659 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2660 // they're kept in fixed point format through all calculations
2661 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2662 // side data, but the scale factor is not needed to calculate aspect ratio
2663 for (i
= 0; i
< 3; i
++) {
2664 display_matrix
[i
][0] = avio_rb32(pb
); // 16.16 fixed point
2665 display_matrix
[i
][1] = avio_rb32(pb
); // 16.16 fixed point
2666 display_matrix
[i
][2] = avio_rb32(pb
); // 2.30 fixed point
2669 width
= avio_rb32(pb
); // 16.16 fixed point track width
2670 height
= avio_rb32(pb
); // 16.16 fixed point track height
2671 sc
->width
= width
>> 16;
2672 sc
->height
= height
>> 16;
2674 // save the matrix and add rotate metadata when it is not the default
2676 if (display_matrix
[0][0] != (1 << 16) ||
2677 display_matrix
[1][1] != (1 << 16) ||
2678 display_matrix
[2][2] != (1 << 30) ||
2679 display_matrix
[0][1] || display_matrix
[0][2] ||
2680 display_matrix
[1][0] || display_matrix
[1][2] ||
2681 display_matrix
[2][0] || display_matrix
[2][1]) {
2685 av_freep(&sc
->display_matrix
);
2686 sc
->display_matrix
= av_malloc(sizeof(int32_t) * 9);
2687 if (!sc
->display_matrix
)
2688 return AVERROR(ENOMEM
);
2690 for (i
= 0; i
< 3; i
++)
2691 for (j
= 0; j
< 3; j
++)
2692 sc
->display_matrix
[i
* 3 + j
] = display_matrix
[j
][i
];
2694 rotate
= av_display_rotation_get(sc
->display_matrix
);
2695 if (!isnan(rotate
)) {
2696 char rotate_buf
[64];
2698 if (rotate
< 0) // for backward compatibility
2700 snprintf(rotate_buf
, sizeof(rotate_buf
), "%g", rotate
);
2701 av_dict_set(&st
->metadata
, "rotate", rotate_buf
, 0);
2705 // transform the display width/height according to the matrix
2706 // skip this if the display matrix is the default identity matrix
2707 // or if it is rotating the picture, ex iPhone 3GS
2708 // to keep the same scale, use [width height 1<<16]
2709 if (width
&& height
&&
2710 ((display_matrix
[0][0] != 65536 ||
2711 display_matrix
[1][1] != 65536) &&
2712 !display_matrix
[0][1] &&
2713 !display_matrix
[1][0] &&
2714 !display_matrix
[2][0] && !display_matrix
[2][1])) {
2715 for (i
= 0; i
< 2; i
++)
2717 (int64_t) width
* display_matrix
[0][i
] +
2718 (int64_t) height
* display_matrix
[1][i
] +
2719 ((int64_t) display_matrix
[2][i
] << 16);
2721 //sample aspect ratio is new width/height divided by old width/height
2722 st
->sample_aspect_ratio
= av_d2q(
2723 ((double) disp_transform
[0] * height
) /
2724 ((double) disp_transform
[1] * width
), INT_MAX
);
2729 static int mov_read_tfhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2731 MOVFragment
*frag
= &c
->fragment
;
2732 MOVTrackExt
*trex
= NULL
;
2733 int flags
, track_id
, i
;
2735 avio_r8(pb
); /* version */
2736 flags
= avio_rb24(pb
);
2738 track_id
= avio_rb32(pb
);
2740 return AVERROR_INVALIDDATA
;
2741 frag
->track_id
= track_id
;
2742 for (i
= 0; i
< c
->trex_count
; i
++)
2743 if (c
->trex_data
[i
].track_id
== frag
->track_id
) {
2744 trex
= &c
->trex_data
[i
];
2748 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding trex\n");
2749 return AVERROR_INVALIDDATA
;
2752 frag
->base_data_offset
= flags
& MOV_TFHD_BASE_DATA_OFFSET
?
2753 avio_rb64(pb
) : flags
& MOV_TFHD_DEFAULT_BASE_IS_MOOF
?
2754 frag
->moof_offset
: frag
->implicit_offset
;
2755 frag
->stsd_id
= flags
& MOV_TFHD_STSD_ID
? avio_rb32(pb
) : trex
->stsd_id
;
2757 frag
->duration
= flags
& MOV_TFHD_DEFAULT_DURATION
?
2758 avio_rb32(pb
) : trex
->duration
;
2759 frag
->size
= flags
& MOV_TFHD_DEFAULT_SIZE
?
2760 avio_rb32(pb
) : trex
->size
;
2761 frag
->flags
= flags
& MOV_TFHD_DEFAULT_FLAGS
?
2762 avio_rb32(pb
) : trex
->flags
;
2763 av_dlog(c
->fc
, "frag flags 0x%x\n", frag
->flags
);
2767 static int mov_read_chap(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2769 c
->chapter_track
= avio_rb32(pb
);
2773 static int mov_read_trex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2778 if ((uint64_t)c
->trex_count
+1 >= UINT_MAX
/ sizeof(*c
->trex_data
))
2779 return AVERROR_INVALIDDATA
;
2780 if ((err
= av_reallocp_array(&c
->trex_data
, c
->trex_count
+ 1,
2781 sizeof(*c
->trex_data
))) < 0) {
2786 c
->fc
->duration
= AV_NOPTS_VALUE
; // the duration from mvhd is not representing the whole file when fragments are used.
2788 trex
= &c
->trex_data
[c
->trex_count
++];
2789 avio_r8(pb
); /* version */
2790 avio_rb24(pb
); /* flags */
2791 trex
->track_id
= avio_rb32(pb
);
2792 trex
->stsd_id
= avio_rb32(pb
);
2793 trex
->duration
= avio_rb32(pb
);
2794 trex
->size
= avio_rb32(pb
);
2795 trex
->flags
= avio_rb32(pb
);
2799 static int mov_read_trun(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2801 MOVFragment
*frag
= &c
->fragment
;
2802 AVStream
*st
= NULL
;
2803 MOVStreamContext
*sc
;
2807 int data_offset
= 0;
2808 unsigned entries
, first_sample_flags
= frag
->flags
;
2809 int flags
, distance
, i
, found_keyframe
= 0, err
;
2811 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2812 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2813 st
= c
->fc
->streams
[i
];
2818 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2819 return AVERROR_INVALIDDATA
;
2822 if (sc
->pseudo_stream_id
+1 != frag
->stsd_id
&& sc
->pseudo_stream_id
!= -1)
2824 avio_r8(pb
); /* version */
2825 flags
= avio_rb24(pb
);
2826 entries
= avio_rb32(pb
);
2827 av_dlog(c
->fc
, "flags 0x%x entries %d\n", flags
, entries
);
2829 /* Always assume the presence of composition time offsets.
2830 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2831 * 1) in the initial movie, there are no samples.
2832 * 2) in the first movie fragment, there is only one sample without composition time offset.
2833 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2834 if (!sc
->ctts_count
&& sc
->sample_count
)
2836 /* Complement ctts table if moov atom doesn't have ctts atom. */
2837 ctts_data
= av_realloc(NULL
, sizeof(*sc
->ctts_data
));
2839 return AVERROR(ENOMEM
);
2840 sc
->ctts_data
= ctts_data
;
2841 sc
->ctts_data
[sc
->ctts_count
].count
= sc
->sample_count
;
2842 sc
->ctts_data
[sc
->ctts_count
].duration
= 0;
2845 if ((uint64_t)entries
+sc
->ctts_count
>= UINT_MAX
/sizeof(*sc
->ctts_data
))
2846 return AVERROR_INVALIDDATA
;
2847 if ((err
= av_reallocp_array(&sc
->ctts_data
, entries
+ sc
->ctts_count
,
2848 sizeof(*sc
->ctts_data
))) < 0) {
2852 if (flags
& MOV_TRUN_DATA_OFFSET
) data_offset
= avio_rb32(pb
);
2853 if (flags
& MOV_TRUN_FIRST_SAMPLE_FLAGS
) first_sample_flags
= avio_rb32(pb
);
2854 dts
= sc
->track_end
- sc
->time_offset
;
2855 offset
= frag
->base_data_offset
+ data_offset
;
2857 av_dlog(c
->fc
, "first sample flags 0x%x\n", first_sample_flags
);
2858 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2859 unsigned sample_size
= frag
->size
;
2860 int sample_flags
= i
? frag
->flags
: first_sample_flags
;
2861 unsigned sample_duration
= frag
->duration
;
2864 if (flags
& MOV_TRUN_SAMPLE_DURATION
) sample_duration
= avio_rb32(pb
);
2865 if (flags
& MOV_TRUN_SAMPLE_SIZE
) sample_size
= avio_rb32(pb
);
2866 if (flags
& MOV_TRUN_SAMPLE_FLAGS
) sample_flags
= avio_rb32(pb
);
2867 sc
->ctts_data
[sc
->ctts_count
].count
= 1;
2868 sc
->ctts_data
[sc
->ctts_count
].duration
= (flags
& MOV_TRUN_SAMPLE_CTS
) ?
2870 mov_update_dts_shift(sc
, sc
->ctts_data
[sc
->ctts_count
].duration
);
2872 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
)
2874 else if (!found_keyframe
)
2875 keyframe
= found_keyframe
=
2876 !(sample_flags
& (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
|
2877 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
));
2880 av_add_index_entry(st
, offset
, dts
, sample_size
, distance
,
2881 keyframe
? AVINDEX_KEYFRAME
: 0);
2882 av_dlog(c
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2883 "size %d, distance %d, keyframe %d\n", st
->index
, sc
->sample_count
+i
,
2884 offset
, dts
, sample_size
, distance
, keyframe
);
2886 dts
+= sample_duration
;
2887 offset
+= sample_size
;
2888 sc
->data_size
+= sample_size
;
2889 sc
->duration_for_fps
+= sample_duration
;
2890 sc
->nb_frames_for_fps
++;
2893 if (pb
->eof_reached
)
2896 frag
->implicit_offset
= offset
;
2897 st
->duration
= sc
->track_end
= dts
+ sc
->time_offset
;
2901 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2902 /* like the files created with Adobe Premiere 5.0, for samples see */
2903 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
2904 static int mov_read_wide(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2909 return 0; /* continue */
2910 if (avio_rb32(pb
) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2911 avio_skip(pb
, atom
.size
- 4);
2914 atom
.type
= avio_rl32(pb
);
2916 if (atom
.type
!= MKTAG('m','d','a','t')) {
2917 avio_skip(pb
, atom
.size
);
2920 err
= mov_read_mdat(c
, pb
, atom
);
2924 static int mov_read_cmov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2929 uint8_t *moov_data
; /* uncompressed data */
2930 long cmov_len
, moov_len
;
2933 avio_rb32(pb
); /* dcom atom */
2934 if (avio_rl32(pb
) != MKTAG('d','c','o','m'))
2935 return AVERROR_INVALIDDATA
;
2936 if (avio_rl32(pb
) != MKTAG('z','l','i','b')) {
2937 av_log(c
->fc
, AV_LOG_ERROR
, "unknown compression for cmov atom !\n");
2938 return AVERROR_INVALIDDATA
;
2940 avio_rb32(pb
); /* cmvd atom */
2941 if (avio_rl32(pb
) != MKTAG('c','m','v','d'))
2942 return AVERROR_INVALIDDATA
;
2943 moov_len
= avio_rb32(pb
); /* uncompressed size */
2944 cmov_len
= atom
.size
- 6 * 4;
2946 cmov_data
= av_malloc(cmov_len
);
2948 return AVERROR(ENOMEM
);
2949 moov_data
= av_malloc(moov_len
);
2952 return AVERROR(ENOMEM
);
2954 avio_read(pb
, cmov_data
, cmov_len
);
2955 if (uncompress (moov_data
, (uLongf
*) &moov_len
, (const Bytef
*)cmov_data
, cmov_len
) != Z_OK
)
2956 goto free_and_return
;
2957 if (ffio_init_context(&ctx
, moov_data
, moov_len
, 0, NULL
, NULL
, NULL
, NULL
) != 0)
2958 goto free_and_return
;
2959 atom
.type
= MKTAG('m','o','o','v');
2960 atom
.size
= moov_len
;
2961 ret
= mov_read_default(c
, &ctx
, atom
);
2967 av_log(c
->fc
, AV_LOG_ERROR
, "this file requires zlib support compiled in\n");
2968 return AVERROR(ENOSYS
);
2972 /* edit list atom */
2973 static int mov_read_elst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2975 MOVStreamContext
*sc
;
2976 int i
, edit_count
, version
, edit_start_index
= 0;
2977 int unsupported
= 0;
2979 if (c
->fc
->nb_streams
< 1 || c
->ignore_editlist
)
2981 sc
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->priv_data
;
2983 version
= avio_r8(pb
); /* version */
2984 avio_rb24(pb
); /* flags */
2985 edit_count
= avio_rb32(pb
); /* entries */
2987 if ((uint64_t)edit_count
*12+8 > atom
.size
)
2988 return AVERROR_INVALIDDATA
;
2990 av_dlog(c
->fc
, "track[%i].edit_count = %i\n", c
->fc
->nb_streams
-1, edit_count
);
2991 for (i
=0; i
<edit_count
; i
++){
2996 duration
= avio_rb64(pb
);
2997 time
= avio_rb64(pb
);
2999 duration
= avio_rb32(pb
); /* segment duration */
3000 time
= (int32_t)avio_rb32(pb
); /* media time */
3002 rate
= avio_rb32(pb
);
3003 if (i
== 0 && time
== -1) {
3004 sc
->empty_duration
= duration
;
3005 edit_start_index
= 1;
3006 } else if (i
== edit_start_index
&& time
>= 0)
3007 sc
->start_time
= time
;
3011 av_dlog(c
->fc
, "duration=%"PRId64
" time=%"PRId64
" rate=%f\n",
3012 duration
, time
, rate
/ 65536.0);
3016 av_log(c
->fc
, AV_LOG_WARNING
, "multiple edit list entries, "
3017 "a/v desync might occur, patch welcome\n");
3022 static int mov_read_tmcd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3024 MOVStreamContext
*sc
;
3026 if (c
->fc
->nb_streams
< 1)
3027 return AVERROR_INVALIDDATA
;
3028 sc
= c
->fc
->streams
[c
->fc
->nb_streams
- 1]->priv_data
;
3029 sc
->timecode_track
= avio_rb32(pb
);
3033 static int mov_read_uuid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3037 static const uint8_t uuid_isml_manifest
[] = {
3038 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3039 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3042 if (atom
.size
< sizeof(uuid
) || atom
.size
== INT64_MAX
)
3043 return AVERROR_INVALIDDATA
;
3045 ret
= avio_read(pb
, uuid
, sizeof(uuid
));
3048 } else if (ret
!= sizeof(uuid
)) {
3049 return AVERROR_INVALIDDATA
;
3051 if (!memcmp(uuid
, uuid_isml_manifest
, sizeof(uuid
))) {
3052 uint8_t *buffer
, *ptr
;
3054 size_t len
= atom
.size
- sizeof(uuid
);
3057 return AVERROR_INVALIDDATA
;
3059 ret
= avio_skip(pb
, 4); // zeroes
3062 buffer
= av_mallocz(len
+ 1);
3064 return AVERROR(ENOMEM
);
3066 ret
= avio_read(pb
, buffer
, len
);
3070 } else if (ret
!= len
) {
3072 return AVERROR_INVALIDDATA
;
3076 while ((ptr
= av_stristr(ptr
, "systemBitrate=\""))) {
3077 ptr
+= sizeof("systemBitrate=\"") - 1;
3078 c
->bitrates_count
++;
3079 c
->bitrates
= av_realloc_f(c
->bitrates
, c
->bitrates_count
, sizeof(*c
->bitrates
));
3081 c
->bitrates_count
= 0;
3083 return AVERROR(ENOMEM
);
3086 ret
= strtol(ptr
, &endptr
, 10);
3087 if (ret
< 0 || errno
|| *endptr
!= '"') {
3088 c
->bitrates
[c
->bitrates_count
- 1] = 0;
3090 c
->bitrates
[c
->bitrates_count
- 1] = ret
;
3099 static const MOVParseTableEntry mov_default_parse_table
[] = {
3100 { MKTAG('A','C','L','R'), mov_read_avid
},
3101 { MKTAG('A','P','R','G'), mov_read_avid
},
3102 { MKTAG('A','A','L','P'), mov_read_avid
},
3103 { MKTAG('A','R','E','S'), mov_read_ares
},
3104 { MKTAG('a','v','s','s'), mov_read_avss
},
3105 { MKTAG('c','h','p','l'), mov_read_chpl
},
3106 { MKTAG('c','o','6','4'), mov_read_stco
},
3107 { MKTAG('c','t','t','s'), mov_read_ctts
}, /* composition time to sample */
3108 { MKTAG('d','i','n','f'), mov_read_default
},
3109 { MKTAG('d','r','e','f'), mov_read_dref
},
3110 { MKTAG('e','d','t','s'), mov_read_default
},
3111 { MKTAG('e','l','s','t'), mov_read_elst
},
3112 { MKTAG('e','n','d','a'), mov_read_enda
},
3113 { MKTAG('f','i','e','l'), mov_read_fiel
},
3114 { MKTAG('f','t','y','p'), mov_read_ftyp
},
3115 { MKTAG('g','l','b','l'), mov_read_glbl
},
3116 { MKTAG('h','d','l','r'), mov_read_hdlr
},
3117 { MKTAG('i','l','s','t'), mov_read_ilst
},
3118 { MKTAG('j','p','2','h'), mov_read_jp2h
},
3119 { MKTAG('m','d','a','t'), mov_read_mdat
},
3120 { MKTAG('m','d','h','d'), mov_read_mdhd
},
3121 { MKTAG('m','d','i','a'), mov_read_default
},
3122 { MKTAG('m','e','t','a'), mov_read_meta
},
3123 { MKTAG('m','i','n','f'), mov_read_default
},
3124 { MKTAG('m','o','o','f'), mov_read_moof
},
3125 { MKTAG('m','o','o','v'), mov_read_moov
},
3126 { MKTAG('m','v','e','x'), mov_read_default
},
3127 { MKTAG('m','v','h','d'), mov_read_mvhd
},
3128 { MKTAG('S','M','I',' '), mov_read_svq3
},
3129 { MKTAG('a','l','a','c'), mov_read_alac
}, /* alac specific atom */
3130 { MKTAG('a','v','c','C'), mov_read_glbl
},
3131 { MKTAG('p','a','s','p'), mov_read_pasp
},
3132 { MKTAG('s','t','b','l'), mov_read_default
},
3133 { MKTAG('s','t','c','o'), mov_read_stco
},
3134 { MKTAG('s','t','p','s'), mov_read_stps
},
3135 { MKTAG('s','t','r','f'), mov_read_strf
},
3136 { MKTAG('s','t','s','c'), mov_read_stsc
},
3137 { MKTAG('s','t','s','d'), mov_read_stsd
}, /* sample description */
3138 { MKTAG('s','t','s','s'), mov_read_stss
}, /* sync sample */
3139 { MKTAG('s','t','s','z'), mov_read_stsz
}, /* sample size */
3140 { MKTAG('s','t','t','s'), mov_read_stts
},
3141 { MKTAG('s','t','z','2'), mov_read_stsz
}, /* compact sample size */
3142 { MKTAG('t','k','h','d'), mov_read_tkhd
}, /* track header */
3143 { MKTAG('t','f','h','d'), mov_read_tfhd
}, /* track fragment header */
3144 { MKTAG('t','r','a','k'), mov_read_trak
},
3145 { MKTAG('t','r','a','f'), mov_read_default
},
3146 { MKTAG('t','r','e','f'), mov_read_default
},
3147 { MKTAG('t','m','c','d'), mov_read_tmcd
},
3148 { MKTAG('c','h','a','p'), mov_read_chap
},
3149 { MKTAG('t','r','e','x'), mov_read_trex
},
3150 { MKTAG('t','r','u','n'), mov_read_trun
},
3151 { MKTAG('u','d','t','a'), mov_read_default
},
3152 { MKTAG('w','a','v','e'), mov_read_wave
},
3153 { MKTAG('e','s','d','s'), mov_read_esds
},
3154 { MKTAG('d','a','c','3'), mov_read_dac3
}, /* AC-3 info */
3155 { MKTAG('d','e','c','3'), mov_read_dec3
}, /* EAC-3 info */
3156 { MKTAG('w','i','d','e'), mov_read_wide
}, /* place holder */
3157 { MKTAG('w','f','e','x'), mov_read_wfex
},
3158 { MKTAG('c','m','o','v'), mov_read_cmov
},
3159 { MKTAG('c','h','a','n'), mov_read_chan
}, /* channel layout */
3160 { MKTAG('d','v','c','1'), mov_read_dvc1
},
3161 { MKTAG('s','b','g','p'), mov_read_sbgp
},
3162 { MKTAG('h','v','c','C'), mov_read_glbl
},
3163 { MKTAG('u','u','i','d'), mov_read_uuid
},
3164 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216
},
3165 { MKTAG('-','-','-','-'), mov_read_custom
},
3169 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3171 int64_t total_size
= 0;
3176 atom
.size
= INT64_MAX
;
3177 while (total_size
+ 8 <= atom
.size
&& !avio_feof(pb
)) {
3178 int (*parse
)(MOVContext
*, AVIOContext
*, MOVAtom
) = NULL
;
3181 if (atom
.size
>= 8) {
3182 a
.size
= avio_rb32(pb
);
3183 a
.type
= avio_rl32(pb
);
3184 if (a
.type
== MKTAG('f','r','e','e') &&
3188 uint32_t *type
= (uint32_t *)buf
+ 1;
3189 avio_read(pb
, buf
, 8);
3190 avio_seek(pb
, -8, SEEK_CUR
);
3191 if (*type
== MKTAG('m','v','h','d') ||
3192 *type
== MKTAG('c','m','o','v')) {
3193 av_log(c
->fc
, AV_LOG_ERROR
, "Detected moov in a free atom.\n");
3194 a
.type
= MKTAG('m','o','o','v');
3197 if (atom
.type
!= MKTAG('r','o','o','t') &&
3198 atom
.type
!= MKTAG('m','o','o','v'))
3200 if (a
.type
== MKTAG('t','r','a','k') || a
.type
== MKTAG('m','d','a','t'))
3202 av_log(c
->fc
, AV_LOG_ERROR
, "Broken file, trak/mdat not at top-level\n");
3208 if (a
.size
== 1) { /* 64 bit extended size */
3209 a
.size
= avio_rb64(pb
) - 8;
3213 av_dlog(c
->fc
, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64
" %"PRId64
" %"PRId64
"\n",
3214 a
.type
, (char*)&a
.type
, (char*)&atom
.type
, a
.size
, total_size
, atom
.size
);
3216 a
.size
= atom
.size
- total_size
+ 8;
3221 a
.size
= FFMIN(a
.size
, atom
.size
- total_size
);
3223 for (i
= 0; mov_default_parse_table
[i
].type
; i
++)
3224 if (mov_default_parse_table
[i
].type
== a
.type
) {
3225 parse
= mov_default_parse_table
[i
].parse
;
3229 // container is user data
3230 if (!parse
&& (atom
.type
== MKTAG('u','d','t','a') ||
3231 atom
.type
== MKTAG('i','l','s','t')))
3232 parse
= mov_read_udta_string
;
3234 if (!parse
) { /* skip leaf atoms data */
3235 avio_skip(pb
, a
.size
);
3237 int64_t start_pos
= avio_tell(pb
);
3239 int err
= parse(c
, pb
, a
);
3242 if (c
->found_moov
&& c
->found_mdat
&&
3243 ((!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
) ||
3244 start_pos
+ a
.size
== avio_size(pb
))) {
3245 if (!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
)
3246 c
->next_root_atom
= start_pos
+ a
.size
;
3249 left
= a
.size
- avio_tell(pb
) + start_pos
;
3250 if (left
> 0) /* skip garbage at atom end */
3251 avio_skip(pb
, left
);
3252 else if (left
< 0) {
3253 av_log(c
->fc
, AV_LOG_WARNING
,
3254 "overread end of atom '%.4s' by %"PRId64
" bytes\n",
3255 (char*)&a
.type
, -left
);
3256 avio_seek(pb
, left
, SEEK_CUR
);
3260 total_size
+= a
.size
;
3263 if (total_size
< atom
.size
&& atom
.size
< 0x7ffff)
3264 avio_skip(pb
, atom
.size
- total_size
);
3269 static int mov_probe(AVProbeData
*p
)
3274 int moov_offset
= -1;
3276 /* check file header */
3279 /* ignore invalid offset */
3280 if ((offset
+ 8) > (unsigned int)p
->buf_size
)
3282 tag
= AV_RL32(p
->buf
+ offset
+ 4);
3284 /* check for obvious tags */
3285 case MKTAG('m','o','o','v'):
3286 moov_offset
= offset
+ 4;
3287 case MKTAG('m','d','a','t'):
3288 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3289 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3290 case MKTAG('f','t','y','p'):
3291 if (AV_RB32(p
->buf
+offset
) < 8 &&
3292 (AV_RB32(p
->buf
+offset
) != 1 ||
3293 offset
+ 12 > (unsigned int)p
->buf_size
||
3294 AV_RB64(p
->buf
+offset
+ 8) == 0)) {
3295 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3296 } else if (tag
== MKTAG('f','t','y','p') &&
3297 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('j','p','2',' ')) {
3298 score
= FFMAX(score
, 5);
3300 score
= AVPROBE_SCORE_MAX
;
3302 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3304 /* those are more common words, so rate then a bit less */
3305 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3306 case MKTAG('w','i','d','e'):
3307 case MKTAG('f','r','e','e'):
3308 case MKTAG('j','u','n','k'):
3309 case MKTAG('p','i','c','t'):
3310 score
= FFMAX(score
, AVPROBE_SCORE_MAX
- 5);
3311 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3313 case MKTAG(0x82,0x82,0x7f,0x7d):
3314 case MKTAG('s','k','i','p'):
3315 case MKTAG('u','u','i','d'):
3316 case MKTAG('p','r','f','l'):
3317 /* if we only find those cause probedata is too small at least rate them */
3318 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3319 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3322 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3325 if(score
> AVPROBE_SCORE_MAX
- 50 && moov_offset
!= -1) {
3326 /* moov atom in the header - we should make sure that this is not a
3327 * MOV-packed MPEG-PS */
3328 offset
= moov_offset
;
3330 while(offset
< (p
->buf_size
- 16)){ /* Sufficient space */
3331 /* We found an actual hdlr atom */
3332 if(AV_RL32(p
->buf
+ offset
) == MKTAG('h','d','l','r') &&
3333 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('m','h','l','r') &&
3334 AV_RL32(p
->buf
+ offset
+ 12) == MKTAG('M','P','E','G')){
3335 av_log(NULL
, AV_LOG_WARNING
, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3336 /* We found a media handler reference atom describing an
3337 * MPEG-PS-in-MOV, return a
3338 * low score to force expanding the probe window until
3339 * mpegps_probe finds what it needs */
3350 // must be done after parsing all trak because there's no order requirement
3351 static void mov_read_chapters(AVFormatContext
*s
)
3353 MOVContext
*mov
= s
->priv_data
;
3354 AVStream
*st
= NULL
;
3355 MOVStreamContext
*sc
;
3359 for (i
= 0; i
< s
->nb_streams
; i
++)
3360 if (s
->streams
[i
]->id
== mov
->chapter_track
) {
3365 av_log(s
, AV_LOG_ERROR
, "Referenced QT chapter track not found\n");
3369 st
->discard
= AVDISCARD_ALL
;
3371 cur_pos
= avio_tell(sc
->pb
);
3373 for (i
= 0; i
< st
->nb_index_entries
; i
++) {
3374 AVIndexEntry
*sample
= &st
->index_entries
[i
];
3375 int64_t end
= i
+1 < st
->nb_index_entries
? st
->index_entries
[i
+1].timestamp
: st
->duration
;
3380 if (end
< sample
->timestamp
) {
3381 av_log(s
, AV_LOG_WARNING
, "ignoring stream duration which is shorter than chapters\n");
3382 end
= AV_NOPTS_VALUE
;
3385 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
3386 av_log(s
, AV_LOG_ERROR
, "Chapter %d not found in file\n", i
);
3390 // the first two bytes are the length of the title
3391 len
= avio_rb16(sc
->pb
);
3392 if (len
> sample
->size
-2)
3394 title_len
= 2*len
+ 1;
3395 if (!(title
= av_mallocz(title_len
)))
3398 // The samples could theoretically be in any encoding if there's an encd
3399 // atom following, but in practice are only utf-8 or utf-16, distinguished
3400 // instead by the presence of a BOM
3404 ch
= avio_rb16(sc
->pb
);
3406 avio_get_str16be(sc
->pb
, len
, title
, title_len
);
3407 else if (ch
== 0xfffe)
3408 avio_get_str16le(sc
->pb
, len
, title
, title_len
);
3411 if (len
== 1 || len
== 2)
3414 avio_get_str(sc
->pb
, INT_MAX
, title
+ 2, len
- 1);
3418 avpriv_new_chapter(s
, i
, st
->time_base
, sample
->timestamp
, end
, title
);
3422 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3425 static int parse_timecode_in_framenum_format(AVFormatContext
*s
, AVStream
*st
,
3426 uint32_t value
, int flags
)
3429 char buf
[AV_TIMECODE_STR_SIZE
];
3430 AVRational rate
= {st
->codec
->time_base
.den
,
3431 st
->codec
->time_base
.num
};
3432 int ret
= av_timecode_init(&tc
, rate
, flags
, 0, s
);
3435 av_dict_set(&st
->metadata
, "timecode",
3436 av_timecode_make_string(&tc
, buf
, value
), 0);
3440 static int mov_read_timecode_track(AVFormatContext
*s
, AVStream
*st
)
3442 MOVStreamContext
*sc
= st
->priv_data
;
3444 int64_t cur_pos
= avio_tell(sc
->pb
);
3447 if (!st
->nb_index_entries
)
3450 avio_seek(sc
->pb
, st
->index_entries
->pos
, SEEK_SET
);
3451 value
= avio_rb32(s
->pb
);
3453 if (sc
->tmcd_flags
& 0x0001) flags
|= AV_TIMECODE_FLAG_DROPFRAME
;
3454 if (sc
->tmcd_flags
& 0x0002) flags
|= AV_TIMECODE_FLAG_24HOURSMAX
;
3455 if (sc
->tmcd_flags
& 0x0004) flags
|= AV_TIMECODE_FLAG_ALLOWNEGATIVE
;
3457 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3458 * not the case) and thus assume "frame number format" instead of QT one.
3459 * No sample with tmcd track can be found with a QT timecode at the moment,
3460 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3462 parse_timecode_in_framenum_format(s
, st
, value
, flags
);
3464 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3468 static int mov_read_close(AVFormatContext
*s
)
3470 MOVContext
*mov
= s
->priv_data
;
3473 for (i
= 0; i
< s
->nb_streams
; i
++) {
3474 AVStream
*st
= s
->streams
[i
];
3475 MOVStreamContext
*sc
= st
->priv_data
;
3477 av_freep(&sc
->ctts_data
);
3478 for (j
= 0; j
< sc
->drefs_count
; j
++) {
3479 av_freep(&sc
->drefs
[j
].path
);
3480 av_freep(&sc
->drefs
[j
].dir
);
3482 av_freep(&sc
->drefs
);
3484 sc
->drefs_count
= 0;
3486 if (!sc
->pb_is_copied
)
3490 av_freep(&sc
->chunk_offsets
);
3491 av_freep(&sc
->stsc_data
);
3492 av_freep(&sc
->sample_sizes
);
3493 av_freep(&sc
->keyframes
);
3494 av_freep(&sc
->stts_data
);
3495 av_freep(&sc
->stps_data
);
3496 av_freep(&sc
->rap_group
);
3497 av_freep(&sc
->display_matrix
);
3500 if (mov
->dv_demux
) {
3501 avformat_free_context(mov
->dv_fctx
);
3502 mov
->dv_fctx
= NULL
;
3505 av_freep(&mov
->trex_data
);
3506 av_freep(&mov
->bitrates
);
3511 static int tmcd_is_referenced(AVFormatContext
*s
, int tmcd_id
)
3515 for (i
= 0; i
< s
->nb_streams
; i
++) {
3516 AVStream
*st
= s
->streams
[i
];
3517 MOVStreamContext
*sc
= st
->priv_data
;
3519 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&&
3520 sc
->timecode_track
== tmcd_id
)
3526 /* look for a tmcd track not referenced by any video track, and export it globally */
3527 static void export_orphan_timecode(AVFormatContext
*s
)
3531 for (i
= 0; i
< s
->nb_streams
; i
++) {
3532 AVStream
*st
= s
->streams
[i
];
3534 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d') &&
3535 !tmcd_is_referenced(s
, i
+ 1)) {
3536 AVDictionaryEntry
*tcr
= av_dict_get(st
->metadata
, "timecode", NULL
, 0);
3538 av_dict_set(&s
->metadata
, "timecode", tcr
->value
, 0);
3545 static int mov_read_header(AVFormatContext
*s
)
3547 MOVContext
*mov
= s
->priv_data
;
3548 AVIOContext
*pb
= s
->pb
;
3550 MOVAtom atom
= { AV_RL32("root") };
3554 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3556 atom
.size
= avio_size(pb
);
3558 atom
.size
= INT64_MAX
;
3560 /* check MOV header */
3562 if (mov
->moov_retry
)
3563 avio_seek(pb
, 0, SEEK_SET
);
3564 if ((err
= mov_read_default(mov
, pb
, atom
)) < 0) {
3565 av_log(s
, AV_LOG_ERROR
, "error reading header\n");
3569 } while (pb
->seekable
&& !mov
->found_moov
&& !mov
->moov_retry
++);
3570 if (!mov
->found_moov
) {
3571 av_log(s
, AV_LOG_ERROR
, "moov atom not found\n");
3573 return AVERROR_INVALIDDATA
;
3575 av_dlog(mov
->fc
, "on_parse_exit_offset=%"PRId64
"\n", avio_tell(pb
));
3578 if (mov
->chapter_track
> 0)
3579 mov_read_chapters(s
);
3580 for (i
= 0; i
< s
->nb_streams
; i
++)
3581 if (s
->streams
[i
]->codec
->codec_tag
== AV_RL32("tmcd"))
3582 mov_read_timecode_track(s
, s
->streams
[i
]);
3585 /* copy timecode metadata from tmcd tracks to the related video streams */
3586 for (i
= 0; i
< s
->nb_streams
; i
++) {
3587 AVStream
*st
= s
->streams
[i
];
3588 MOVStreamContext
*sc
= st
->priv_data
;
3589 if (sc
->timecode_track
> 0) {
3590 AVDictionaryEntry
*tcr
;
3591 int tmcd_st_id
= -1;
3593 for (j
= 0; j
< s
->nb_streams
; j
++)
3594 if (s
->streams
[j
]->id
== sc
->timecode_track
)
3597 if (tmcd_st_id
< 0 || tmcd_st_id
== i
)
3599 tcr
= av_dict_get(s
->streams
[tmcd_st_id
]->metadata
, "timecode", NULL
, 0);
3601 av_dict_set(&st
->metadata
, "timecode", tcr
->value
, 0);
3604 export_orphan_timecode(s
);
3606 for (i
= 0; i
< s
->nb_streams
; i
++) {
3607 AVStream
*st
= s
->streams
[i
];
3608 MOVStreamContext
*sc
= st
->priv_data
;
3609 fix_timescale(mov
, sc
);
3610 if(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&& st
->codec
->codec_id
== AV_CODEC_ID_AAC
) {
3611 st
->skip_samples
= sc
->start_pad
;
3613 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& sc
->nb_frames_for_fps
> 0 && sc
->duration_for_fps
> 0)
3614 av_reduce(&st
->avg_frame_rate
.num
, &st
->avg_frame_rate
.den
,
3615 sc
->time_scale
*(int64_t)sc
->nb_frames_for_fps
, sc
->duration_for_fps
, INT_MAX
);
3616 if (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
) {
3617 if (st
->codec
->width
<= 0 && st
->codec
->height
<= 0) {
3618 st
->codec
->width
= sc
->width
;
3619 st
->codec
->height
= sc
->height
;
3621 if (st
->codec
->codec_id
== AV_CODEC_ID_DVD_SUBTITLE
) {
3622 if ((err
= mov_rewrite_dvd_sub_extradata(st
)) < 0)
3628 if (mov
->trex_data
) {
3629 for (i
= 0; i
< s
->nb_streams
; i
++) {
3630 AVStream
*st
= s
->streams
[i
];
3631 MOVStreamContext
*sc
= st
->priv_data
;
3632 if (st
->duration
> 0)
3633 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/ st
->duration
;
3637 for (i
= 0; i
< mov
->bitrates_count
&& i
< s
->nb_streams
; i
++) {
3638 if (mov
->bitrates
[i
]) {
3639 s
->streams
[i
]->codec
->bit_rate
= mov
->bitrates
[i
];
3643 ff_rfps_calculate(s
);
3645 for (i
= 0; i
< s
->nb_streams
; i
++) {
3646 AVStream
*st
= s
->streams
[i
];
3647 MOVStreamContext
*sc
= st
->priv_data
;
3649 switch (st
->codec
->codec_type
) {
3650 case AVMEDIA_TYPE_AUDIO
:
3651 err
= ff_replaygain_export(st
, s
->metadata
);
3657 case AVMEDIA_TYPE_VIDEO
:
3658 if (sc
->display_matrix
) {
3659 AVPacketSideData
*sd
, *tmp
;
3661 tmp
= av_realloc_array(st
->side_data
,
3662 st
->nb_side_data
+ 1, sizeof(*tmp
));
3664 return AVERROR(ENOMEM
);
3666 st
->side_data
= tmp
;
3669 sd
= &st
->side_data
[st
->nb_side_data
- 1];
3670 sd
->type
= AV_PKT_DATA_DISPLAYMATRIX
;
3671 sd
->size
= sizeof(int32_t) * 9;
3672 sd
->data
= (uint8_t*)sc
->display_matrix
;
3673 sc
->display_matrix
= NULL
;
3682 static AVIndexEntry
*mov_find_next_sample(AVFormatContext
*s
, AVStream
**st
)
3684 AVIndexEntry
*sample
= NULL
;
3685 int64_t best_dts
= INT64_MAX
;
3687 for (i
= 0; i
< s
->nb_streams
; i
++) {
3688 AVStream
*avst
= s
->streams
[i
];
3689 MOVStreamContext
*msc
= avst
->priv_data
;
3690 if (msc
->pb
&& msc
->current_sample
< avst
->nb_index_entries
) {
3691 AVIndexEntry
*current_sample
= &avst
->index_entries
[msc
->current_sample
];
3692 int64_t dts
= av_rescale(current_sample
->timestamp
, AV_TIME_BASE
, msc
->time_scale
);
3693 av_dlog(s
, "stream %d, sample %d, dts %"PRId64
"\n", i
, msc
->current_sample
, dts
);
3694 if (!sample
|| (!s
->pb
->seekable
&& current_sample
->pos
< sample
->pos
) ||
3696 ((msc
->pb
!= s
->pb
&& dts
< best_dts
) || (msc
->pb
== s
->pb
&&
3697 ((FFABS(best_dts
- dts
) <= AV_TIME_BASE
&& current_sample
->pos
< sample
->pos
) ||
3698 (FFABS(best_dts
- dts
) > AV_TIME_BASE
&& dts
< best_dts
)))))) {
3699 sample
= current_sample
;
3708 static int mov_read_packet(AVFormatContext
*s
, AVPacket
*pkt
)
3710 MOVContext
*mov
= s
->priv_data
;
3711 MOVStreamContext
*sc
;
3712 AVIndexEntry
*sample
;
3713 AVStream
*st
= NULL
;
3717 sample
= mov_find_next_sample(s
, &st
);
3719 mov
->found_mdat
= 0;
3720 if (!mov
->next_root_atom
)
3722 avio_seek(s
->pb
, mov
->next_root_atom
, SEEK_SET
);
3723 mov
->next_root_atom
= 0;
3724 if (mov_read_default(mov
, s
->pb
, (MOVAtom
){ AV_RL32("root"), INT64_MAX
}) < 0 ||
3727 av_dlog(s
, "read fragments, offset 0x%"PRIx64
"\n", avio_tell(s
->pb
));
3731 /* must be done just before reading, to avoid infinite loop on sample */
3732 sc
->current_sample
++;
3734 if (mov
->next_root_atom
) {
3735 sample
->pos
= FFMIN(sample
->pos
, mov
->next_root_atom
);
3736 sample
->size
= FFMIN(sample
->size
, (mov
->next_root_atom
- sample
->pos
));
3739 if (st
->discard
!= AVDISCARD_ALL
) {
3740 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
3741 av_log(mov
->fc
, AV_LOG_ERROR
, "stream %d, offset 0x%"PRIx64
": partial file\n",
3742 sc
->ffindex
, sample
->pos
);
3743 return AVERROR_INVALIDDATA
;
3745 ret
= av_get_packet(sc
->pb
, pkt
, sample
->size
);
3748 if (sc
->has_palette
) {
3751 pal
= av_packet_new_side_data(pkt
, AV_PKT_DATA_PALETTE
, AVPALETTE_SIZE
);
3753 av_log(mov
->fc
, AV_LOG_ERROR
, "Cannot append palette to packet\n");
3755 memcpy(pal
, sc
->palette
, AVPALETTE_SIZE
);
3756 sc
->has_palette
= 0;
3759 #if CONFIG_DV_DEMUXER
3760 if (mov
->dv_demux
&& sc
->dv_audio_container
) {
3761 avpriv_dv_produce_packet(mov
->dv_demux
, pkt
, pkt
->data
, pkt
->size
, pkt
->pos
);
3764 ret
= avpriv_dv_get_packet(mov
->dv_demux
, pkt
);
3771 pkt
->stream_index
= sc
->ffindex
;
3772 pkt
->dts
= sample
->timestamp
;
3773 if (sc
->ctts_data
&& sc
->ctts_index
< sc
->ctts_count
) {
3774 pkt
->pts
= pkt
->dts
+ sc
->dts_shift
+ sc
->ctts_data
[sc
->ctts_index
].duration
;
3775 /* update ctts context */
3777 if (sc
->ctts_index
< sc
->ctts_count
&&
3778 sc
->ctts_data
[sc
->ctts_index
].count
== sc
->ctts_sample
) {
3780 sc
->ctts_sample
= 0;
3783 pkt
->dts
= AV_NOPTS_VALUE
;
3785 int64_t next_dts
= (sc
->current_sample
< st
->nb_index_entries
) ?
3786 st
->index_entries
[sc
->current_sample
].timestamp
: st
->duration
;
3787 pkt
->duration
= next_dts
- pkt
->dts
;
3788 pkt
->pts
= pkt
->dts
;
3790 if (st
->discard
== AVDISCARD_ALL
)
3792 pkt
->flags
|= sample
->flags
& AVINDEX_KEYFRAME
? AV_PKT_FLAG_KEY
: 0;
3793 pkt
->pos
= sample
->pos
;
3794 av_dlog(s
, "stream %d, pts %"PRId64
", dts %"PRId64
", pos 0x%"PRIx64
", duration %d\n",
3795 pkt
->stream_index
, pkt
->pts
, pkt
->dts
, pkt
->pos
, pkt
->duration
);
3799 static int mov_seek_stream(AVFormatContext
*s
, AVStream
*st
, int64_t timestamp
, int flags
)
3801 MOVStreamContext
*sc
= st
->priv_data
;
3802 int sample
, time_sample
;
3805 sample
= av_index_search_timestamp(st
, timestamp
, flags
);
3806 av_dlog(s
, "stream %d, timestamp %"PRId64
", sample %d\n", st
->index
, timestamp
, sample
);
3807 if (sample
< 0 && st
->nb_index_entries
&& timestamp
< st
->index_entries
[0].timestamp
)
3809 if (sample
< 0) /* not sure what to do */
3810 return AVERROR_INVALIDDATA
;
3811 sc
->current_sample
= sample
;
3812 av_dlog(s
, "stream %d, found sample %d\n", st
->index
, sc
->current_sample
);
3813 /* adjust ctts index */
3814 if (sc
->ctts_data
) {
3816 for (i
= 0; i
< sc
->ctts_count
; i
++) {
3817 int next
= time_sample
+ sc
->ctts_data
[i
].count
;
3818 if (next
> sc
->current_sample
) {
3820 sc
->ctts_sample
= sc
->current_sample
- time_sample
;
3829 static int mov_read_seek(AVFormatContext
*s
, int stream_index
, int64_t sample_time
, int flags
)
3832 int64_t seek_timestamp
, timestamp
;
3836 if (stream_index
>= s
->nb_streams
)
3837 return AVERROR_INVALIDDATA
;
3839 st
= s
->streams
[stream_index
];
3840 sample
= mov_seek_stream(s
, st
, sample_time
, flags
);
3844 /* adjust seek timestamp to found sample timestamp */
3845 seek_timestamp
= st
->index_entries
[sample
].timestamp
;
3847 for (i
= 0; i
< s
->nb_streams
; i
++) {
3848 MOVStreamContext
*sc
= s
->streams
[i
]->priv_data
;
3850 st
->skip_samples
= (sample_time
<= 0) ? sc
->start_pad
: 0;
3852 if (stream_index
== i
)
3855 timestamp
= av_rescale_q(seek_timestamp
, s
->streams
[stream_index
]->time_base
, st
->time_base
);
3856 mov_seek_stream(s
, st
, timestamp
, flags
);
3861 static const AVOption options
[] = {
3862 {"use_absolute_path",
3863 "allow using absolute path when opening alias, this is a possible security issue",
3864 offsetof(MOVContext
, use_absolute_path
), FF_OPT_TYPE_INT
, {.i64
= 0},
3865 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
3866 {"ignore_editlist", "", offsetof(MOVContext
, ignore_editlist
), FF_OPT_TYPE_INT
, {.i64
= 0},
3867 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
3871 static const AVClass mov_class
= {
3872 .class_name
= "mov,mp4,m4a,3gp,3g2,mj2",
3873 .item_name
= av_default_item_name
,
3875 .version
= LIBAVUTIL_VERSION_INT
,
3878 AVInputFormat ff_mov_demuxer
= {
3879 .name
= "mov,mp4,m4a,3gp,3g2,mj2",
3880 .long_name
= NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3881 .priv_data_size
= sizeof(MOVContext
),
3882 .extensions
= "mov,mp4,m4a,3gp,3g2,mj2",
3883 .read_probe
= mov_probe
,
3884 .read_header
= mov_read_header
,
3885 .read_packet
= mov_read_packet
,
3886 .read_close
= mov_read_close
,
3887 .read_seek
= mov_read_seek
,
3888 .priv_class
= &mov_class
,
3889 .flags
= AVFMT_NO_BYTE_SEEK
,