3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/display.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/intfloat.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/time_internal.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/timecode.h"
41 #include "libavcodec/ac3tab.h"
44 #include "avio_internal.h"
47 #include "libavcodec/get_bits.h"
50 #include "replaygain.h"
56 #include "qtpalette.h"
62 /* those functions parse an atom */
63 /* links atom IDs to parse functions */
64 typedef struct MOVParseTableEntry
{
66 int (*parse
)(MOVContext
*ctx
, AVIOContext
*pb
, MOVAtom atom
);
69 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
);
70 static int mov_read_mfra(MOVContext
*c
, AVIOContext
*f
);
72 static int mov_metadata_track_or_disc_number(MOVContext
*c
, AVIOContext
*pb
,
73 unsigned len
, const char *key
)
77 short current
, total
= 0;
78 avio_rb16(pb
); // unknown
79 current
= avio_rb16(pb
);
81 total
= avio_rb16(pb
);
83 snprintf(buf
, sizeof(buf
), "%d", current
);
85 snprintf(buf
, sizeof(buf
), "%d/%d", current
, total
);
86 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
87 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext
*c
, AVIOContext
*pb
,
93 unsigned len
, const char *key
)
95 /* bypass padding bytes */
100 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
101 av_dict_set_int(&c
->fc
->metadata
, key
, avio_r8(pb
), 0);
106 static int mov_metadata_int8_no_padding(MOVContext
*c
, AVIOContext
*pb
,
107 unsigned len
, const char *key
)
109 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
110 av_dict_set_int(&c
->fc
->metadata
, key
, avio_r8(pb
), 0);
115 static int mov_metadata_gnre(MOVContext
*c
, AVIOContext
*pb
,
116 unsigned len
, const char *key
)
120 avio_r8(pb
); // unknown
123 if (genre
< 1 || genre
> ID3v1_GENRE_MAX
)
125 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
126 av_dict_set(&c
->fc
->metadata
, key
, ff_id3v1_genre_str
[genre
-1], 0);
131 static const uint32_t mac_to_unicode
[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext
*c
, AVIOContext
*pb
, int len
,
151 char *dst
, int dstlen
)
154 char *end
= dst
+dstlen
-1;
157 for (i
= 0; i
< len
; i
++) {
158 uint8_t t
, c
= avio_r8(pb
);
159 if (c
< 0x80 && p
< end
)
162 PUT_UTF8(mac_to_unicode
[c
-0x80], t
, if (p
< end
) *p
++ = t
;);
168 static int mov_read_covr(MOVContext
*c
, AVIOContext
*pb
, int type
, int len
)
172 MOVStreamContext
*sc
;
177 case 0xd: id
= AV_CODEC_ID_MJPEG
; break;
178 case 0xe: id
= AV_CODEC_ID_PNG
; break;
179 case 0x1b: id
= AV_CODEC_ID_BMP
; break;
181 av_log(c
->fc
, AV_LOG_WARNING
, "Unknown cover type: 0x%x.\n", type
);
186 st
= avformat_new_stream(c
->fc
, NULL
);
188 return AVERROR(ENOMEM
);
189 sc
= av_mallocz(sizeof(*sc
));
191 return AVERROR(ENOMEM
);
194 ret
= av_get_packet(pb
, &pkt
, len
);
198 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
)
262 char key2
[32], language
[4] = {0};
264 const char *key
= NULL
;
265 uint16_t langcode
= 0;
266 uint32_t data_type
= 0, str_size
, str_size_alloc
;
267 int (*parse
)(MOVContext
*, AVIOContext
*, unsigned, const char*) = NULL
;
270 case MKTAG(0xa9,'n','a','m'): key
= "title"; break;
271 case MKTAG(0xa9,'a','u','t'):
272 case MKTAG(0xa9,'A','R','T'): key
= "artist"; break;
273 case MKTAG( 'a','A','R','T'): key
= "album_artist"; break;
274 case MKTAG(0xa9,'w','r','t'): key
= "composer"; break;
275 case MKTAG( 'c','p','i','l'): key
= "compilation";
276 parse
= mov_metadata_int8_no_padding
; break;
277 case MKTAG( 'c','p','r','t'):
278 case MKTAG(0xa9,'c','p','y'): key
= "copyright"; break;
279 case MKTAG(0xa9,'g','r','p'): key
= "grouping"; break;
280 case MKTAG(0xa9,'l','y','r'): key
= "lyrics"; break;
281 case MKTAG(0xa9,'c','m','t'):
282 case MKTAG(0xa9,'i','n','f'): key
= "comment"; break;
283 case MKTAG(0xa9,'a','l','b'): key
= "album"; break;
284 case MKTAG(0xa9,'d','a','y'): key
= "date"; break;
285 case MKTAG(0xa9,'g','e','n'): key
= "genre"; break;
286 case MKTAG( 'g','n','r','e'): key
= "genre";
287 parse
= mov_metadata_gnre
; break;
288 case MKTAG(0xa9,'t','o','o'):
289 case MKTAG(0xa9,'s','w','r'): key
= "encoder"; break;
290 case MKTAG(0xa9,'e','n','c'): key
= "encoder"; break;
291 case MKTAG(0xa9,'m','a','k'): key
= "make"; break;
292 case MKTAG(0xa9,'m','o','d'): key
= "model"; break;
293 case MKTAG(0xa9,'x','y','z'): key
= "location"; break;
294 case MKTAG( 'd','e','s','c'): key
= "description";break;
295 case MKTAG( 'l','d','e','s'): key
= "synopsis"; break;
296 case MKTAG( 't','v','s','h'): key
= "show"; break;
297 case MKTAG( 't','v','e','n'): key
= "episode_id";break;
298 case MKTAG( 't','v','n','n'): key
= "network"; break;
299 case MKTAG( 't','r','k','n'): key
= "track";
300 parse
= mov_metadata_track_or_disc_number
; break;
301 case MKTAG( 'd','i','s','k'): key
= "disc";
302 parse
= mov_metadata_track_or_disc_number
; break;
303 case MKTAG( 't','v','e','s'): key
= "episode_sort";
304 parse
= mov_metadata_int8_bypass_padding
; break;
305 case MKTAG( 't','v','s','n'): key
= "season_number";
306 parse
= mov_metadata_int8_bypass_padding
; break;
307 case MKTAG( 's','t','i','k'): key
= "media_type";
308 parse
= mov_metadata_int8_no_padding
; break;
309 case MKTAG( 'h','d','v','d'): key
= "hd_video";
310 parse
= mov_metadata_int8_no_padding
; break;
311 case MKTAG( 'p','g','a','p'): key
= "gapless_playback";
312 parse
= mov_metadata_int8_no_padding
; break;
313 case MKTAG( '@','P','R','M'):
314 return mov_metadata_raw(c
, pb
, atom
.size
, "premiere_version");
315 case MKTAG( '@','P','R','Q'):
316 return mov_metadata_raw(c
, pb
, atom
.size
, "quicktime_version");
317 case MKTAG( 'l','o','c','i'):
318 return mov_metadata_loci(c
, pb
, atom
.size
);
319 case MKTAG( 'X','M','P','_'):
320 return mov_metadata_raw(c
, pb
, atom
.size
, "xmp");
323 if (c
->itunes_metadata
&& atom
.size
> 8) {
324 int data_size
= avio_rb32(pb
);
325 int tag
= avio_rl32(pb
);
326 if (tag
== MKTAG('d','a','t','a')) {
327 data_type
= avio_rb32(pb
); // type
328 avio_rb32(pb
); // unknown
329 str_size
= data_size
- 16;
332 if (atom
.type
== MKTAG('c', 'o', 'v', 'r')) {
333 int ret
= mov_read_covr(c
, pb
, data_type
, str_size
);
335 av_log(c
->fc
, AV_LOG_ERROR
, "Error parsing cover art.\n");
340 } else if (atom
.size
> 4 && key
&& !c
->itunes_metadata
) {
341 str_size
= avio_rb16(pb
); // string length
342 langcode
= avio_rb16(pb
);
343 ff_mov_lang_to_iso639(langcode
, language
);
346 str_size
= atom
.size
;
348 if (c
->export_all
&& !key
) {
349 snprintf(tmp_key
, 5, "%.4s", (char*)&atom
.type
);
356 return AVERROR_INVALIDDATA
;
358 str_size_alloc
= str_size
<< 1; // worst-case requirement for output string in case of utf8 coded input
359 str
= av_malloc(str_size_alloc
);
361 return AVERROR(ENOMEM
);
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
, str_size_alloc
);
369 int ret
= avio_read(pb
, str
, str_size
);
370 if (ret
!= str_size
) {
372 return ret
< 0 ? ret
: AVERROR_INVALIDDATA
;
376 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
377 av_dict_set(&c
->fc
->metadata
, key
, str
, 0);
378 if (*language
&& strcmp(language
, "und")) {
379 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
380 av_dict_set(&c
->fc
->metadata
, key2
, str
, 0);
383 av_dlog(c
->fc
, "lang \"%3s\" ", language
);
384 av_dlog(c
->fc
, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64
"\n",
385 key
, str
, (char*)&atom
.type
, str_size_alloc
, atom
.size
);
391 static int mov_read_chpl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
394 int i
, nb_chapters
, str_len
, version
;
397 if ((atom
.size
-= 5) < 0)
400 version
= avio_r8(pb
);
403 avio_rb32(pb
); // ???
404 nb_chapters
= avio_r8(pb
);
406 for (i
= 0; i
< nb_chapters
; i
++) {
410 start
= avio_rb64(pb
);
411 str_len
= avio_r8(pb
);
413 if ((atom
.size
-= 9+str_len
) < 0)
416 avio_read(pb
, str
, str_len
);
418 avpriv_new_chapter(c
->fc
, i
, (AVRational
){1,10000000}, start
, AV_NOPTS_VALUE
, str
);
423 #define MIN_DATA_ENTRY_BOX_SIZE 12
424 static int mov_read_dref(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
427 MOVStreamContext
*sc
;
430 if (c
->fc
->nb_streams
< 1)
432 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
435 avio_rb32(pb
); // version + flags
436 entries
= avio_rb32(pb
);
437 if (entries
> (atom
.size
- 1) / MIN_DATA_ENTRY_BOX_SIZE
+ 1 ||
438 entries
>= UINT_MAX
/ sizeof(*sc
->drefs
))
439 return AVERROR_INVALIDDATA
;
442 sc
->drefs
= av_mallocz(entries
* sizeof(*sc
->drefs
));
444 return AVERROR(ENOMEM
);
445 sc
->drefs_count
= entries
;
447 for (i
= 0; i
< sc
->drefs_count
; i
++) {
448 MOVDref
*dref
= &sc
->drefs
[i
];
449 uint32_t size
= avio_rb32(pb
);
450 int64_t next
= avio_tell(pb
) + size
- 4;
453 return AVERROR_INVALIDDATA
;
455 dref
->type
= avio_rl32(pb
);
456 avio_rb32(pb
); // version + flags
457 av_dlog(c
->fc
, "type %.4s size %d\n", (char*)&dref
->type
, size
);
459 if (dref
->type
== MKTAG('a','l','i','s') && size
> 150) {
460 /* macintosh alias record */
461 uint16_t volume_len
, len
;
466 volume_len
= avio_r8(pb
);
467 volume_len
= FFMIN(volume_len
, 27);
468 avio_read(pb
, dref
->volume
, 27);
469 dref
->volume
[volume_len
] = 0;
470 av_log(c
->fc
, AV_LOG_DEBUG
, "volume %s, len %d\n", dref
->volume
, volume_len
);
475 len
= FFMIN(len
, 63);
476 avio_read(pb
, dref
->filename
, 63);
477 dref
->filename
[len
] = 0;
478 av_log(c
->fc
, AV_LOG_DEBUG
, "filename %s, len %d\n", dref
->filename
, len
);
482 /* read next level up_from_alias/down_to_target */
483 dref
->nlvl_from
= avio_rb16(pb
);
484 dref
->nlvl_to
= avio_rb16(pb
);
485 av_log(c
->fc
, AV_LOG_DEBUG
, "nlvl from %d, nlvl to %d\n",
486 dref
->nlvl_from
, dref
->nlvl_to
);
490 for (type
= 0; type
!= -1 && avio_tell(pb
) < next
; ) {
493 type
= avio_rb16(pb
);
495 av_log(c
->fc
, AV_LOG_DEBUG
, "type %d, len %d\n", type
, len
);
498 if (type
== 2) { // absolute path
500 dref
->path
= av_mallocz(len
+1);
502 return AVERROR(ENOMEM
);
503 avio_read(pb
, dref
->path
, len
);
504 if (len
> volume_len
&& !strncmp(dref
->path
, dref
->volume
, volume_len
)) {
506 memmove(dref
->path
, dref
->path
+volume_len
, len
);
509 for (j
= 0; j
< len
; j
++)
510 if (dref
->path
[j
] == ':')
512 av_log(c
->fc
, AV_LOG_DEBUG
, "path %s\n", dref
->path
);
513 } else if (type
== 0) { // directory name
515 dref
->dir
= av_malloc(len
+1);
517 return AVERROR(ENOMEM
);
518 if (avio_read(pb
, dref
->dir
, len
) != len
)
519 return AVERROR_INVALIDDATA
;
521 for (j
= 0; j
< len
; j
++)
522 if (dref
->dir
[j
] == ':')
524 av_log(c
->fc
, AV_LOG_DEBUG
, "dir %s\n", dref
->dir
);
529 avio_seek(pb
, next
, SEEK_SET
);
534 static int mov_read_hdlr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
538 uint32_t av_unused ctype
;
542 if (c
->fc
->nb_streams
< 1) // meta before first trak
545 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
547 avio_r8(pb
); /* version */
548 avio_rb24(pb
); /* flags */
551 ctype
= avio_rl32(pb
);
552 type
= avio_rl32(pb
); /* component subtype */
554 av_dlog(c
->fc
, "ctype= %.4s (0x%08x)\n", (char*)&ctype
, ctype
);
555 av_dlog(c
->fc
, "stype= %.4s\n", (char*)&type
);
557 if (type
== MKTAG('v','i','d','e'))
558 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
559 else if (type
== MKTAG('s','o','u','n'))
560 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
561 else if (type
== MKTAG('m','1','a',' '))
562 st
->codec
->codec_id
= AV_CODEC_ID_MP2
;
563 else if ((type
== MKTAG('s','u','b','p')) || (type
== MKTAG('c','l','c','p')))
564 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
566 avio_rb32(pb
); /* component manufacture */
567 avio_rb32(pb
); /* component flags */
568 avio_rb32(pb
); /* component flags mask */
570 title_size
= atom
.size
- 24;
571 if (title_size
> 0) {
572 title_str
= av_malloc(title_size
+ 1); /* Add null terminator */
574 return AVERROR(ENOMEM
);
575 avio_read(pb
, title_str
, title_size
);
576 title_str
[title_size
] = 0;
578 av_dict_set(&st
->metadata
, "handler_name", title_str
+
579 (!c
->isom
&& title_str
[0] == title_size
- 1), 0);
580 av_freep(&title_str
);
586 int ff_mov_read_esds(AVFormatContext
*fc
, AVIOContext
*pb
)
591 if (fc
->nb_streams
< 1)
593 st
= fc
->streams
[fc
->nb_streams
-1];
595 avio_rb32(pb
); /* version + flags */
596 ff_mp4_read_descr(fc
, pb
, &tag
);
597 if (tag
== MP4ESDescrTag
) {
598 ff_mp4_parse_es_descr(pb
, NULL
);
600 avio_rb16(pb
); /* ID */
602 ff_mp4_read_descr(fc
, pb
, &tag
);
603 if (tag
== MP4DecConfigDescrTag
)
604 ff_mp4_read_dec_config_descr(fc
, st
, pb
);
608 static int mov_read_esds(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
610 return ff_mov_read_esds(c
->fc
, pb
);
613 static int mov_read_dac3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
616 int ac3info
, acmod
, lfeon
, bsmod
;
618 if (c
->fc
->nb_streams
< 1)
620 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
622 ac3info
= avio_rb24(pb
);
623 bsmod
= (ac3info
>> 14) & 0x7;
624 acmod
= (ac3info
>> 11) & 0x7;
625 lfeon
= (ac3info
>> 10) & 0x1;
626 st
->codec
->channels
= ((int[]){2,1,2,3,3,4,4,5})[acmod
] + lfeon
;
627 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
629 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
630 st
->codec
->audio_service_type
= bsmod
;
631 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
632 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
637 static int mov_read_dec3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
640 int eac3info
, acmod
, lfeon
, bsmod
;
642 if (c
->fc
->nb_streams
< 1)
644 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
646 /* No need to parse fields for additional independent substreams and its
647 * associated dependent substreams since libavcodec's E-AC-3 decoder
648 * does not support them yet. */
649 avio_rb16(pb
); /* data_rate and num_ind_sub */
650 eac3info
= avio_rb24(pb
);
651 bsmod
= (eac3info
>> 12) & 0x1f;
652 acmod
= (eac3info
>> 9) & 0x7;
653 lfeon
= (eac3info
>> 8) & 0x1;
654 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
656 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
657 st
->codec
->channels
= av_get_channel_layout_nb_channels(st
->codec
->channel_layout
);
658 st
->codec
->audio_service_type
= bsmod
;
659 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
660 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
665 static int mov_read_chan(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
669 if (c
->fc
->nb_streams
< 1)
671 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
676 /* skip version and flags */
679 ff_mov_read_chan(c
->fc
, pb
, st
, atom
.size
- 4);
684 static int mov_read_wfex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
689 if (c
->fc
->nb_streams
< 1)
691 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
693 if ((ret
= ff_get_wav_header(pb
, st
->codec
, atom
.size
)) < 0)
694 av_log(c
->fc
, AV_LOG_WARNING
, "get_wav_header failed\n");
699 static int mov_read_pasp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
701 const int num
= avio_rb32(pb
);
702 const int den
= avio_rb32(pb
);
705 if (c
->fc
->nb_streams
< 1)
707 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
709 if ((st
->sample_aspect_ratio
.den
!= 1 || st
->sample_aspect_ratio
.num
) && // default
710 (den
!= st
->sample_aspect_ratio
.den
|| num
!= st
->sample_aspect_ratio
.num
)) {
711 av_log(c
->fc
, AV_LOG_WARNING
,
712 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
713 st
->sample_aspect_ratio
.num
, st
->sample_aspect_ratio
.den
,
715 } else if (den
!= 0) {
716 st
->sample_aspect_ratio
.num
= num
;
717 st
->sample_aspect_ratio
.den
= den
;
722 /* this atom contains actual media data */
723 static int mov_read_mdat(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
725 if (atom
.size
== 0) /* wrong one (MP4) */
728 return 0; /* now go for moov */
731 /* read major brand, minor version and compatible brands and store them as metadata */
732 static int mov_read_ftyp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
736 char* comp_brands_str
;
737 uint8_t type
[5] = {0};
739 avio_read(pb
, type
, 4);
740 if (strcmp(type
, "qt "))
742 av_log(c
->fc
, AV_LOG_DEBUG
, "ISO: File Type Major Brand: %.4s\n",(char *)&type
);
743 av_dict_set(&c
->fc
->metadata
, "major_brand", type
, 0);
744 minor_ver
= avio_rb32(pb
); /* minor version */
745 av_dict_set_int(&c
->fc
->metadata
, "minor_version", minor_ver
, 0);
747 comp_brand_size
= atom
.size
- 8;
748 if (comp_brand_size
< 0)
749 return AVERROR_INVALIDDATA
;
750 comp_brands_str
= av_malloc(comp_brand_size
+ 1); /* Add null terminator */
751 if (!comp_brands_str
)
752 return AVERROR(ENOMEM
);
753 avio_read(pb
, comp_brands_str
, comp_brand_size
);
754 comp_brands_str
[comp_brand_size
] = 0;
755 av_dict_set(&c
->fc
->metadata
, "compatible_brands", comp_brands_str
, 0);
756 av_freep(&comp_brands_str
);
761 /* this atom should contain all header atoms */
762 static int mov_read_moov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
767 av_log(c
->fc
, AV_LOG_WARNING
, "Found duplicated MOOV Atom. Skipped it\n");
768 avio_skip(pb
, atom
.size
);
772 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
774 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
775 /* so we don't parse the whole file if over a network */
777 return 0; /* now go for mdat */
780 static int mov_read_moof(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
782 if (!c
->has_looked_for_mfra
&& c
->use_mfra_for
> 0) {
783 c
->has_looked_for_mfra
= 1;
786 av_log(c
->fc
, AV_LOG_VERBOSE
, "stream has moof boxes, will look "
788 if ((ret
= mov_read_mfra(c
, pb
)) < 0) {
789 av_log(c
->fc
, AV_LOG_VERBOSE
, "found a moof box but failed to "
790 "read the mfra (may be a live ismv)\n");
793 av_log(c
->fc
, AV_LOG_VERBOSE
, "found a moof box but stream is not "
794 "seekable, can not look for mfra\n");
797 c
->fragment
.moof_offset
= c
->fragment
.implicit_offset
= avio_tell(pb
) - 8;
798 av_dlog(c
->fc
, "moof offset %"PRIx64
"\n", c
->fragment
.moof_offset
);
799 return mov_read_default(c
, pb
, atom
);
802 static void mov_metadata_creation_time(AVDictionary
**metadata
, int64_t time
)
806 struct tm
*ptm
, tmbuf
;
808 if(time
>= 2082844800)
809 time
-= 2082844800; /* seconds between 1904-01-01 and Epoch */
811 ptm
= gmtime_r(&timet
, &tmbuf
);
813 if (strftime(buffer
, sizeof(buffer
), "%Y-%m-%d %H:%M:%S", ptm
))
814 av_dict_set(metadata
, "creation_time", buffer
, 0);
818 static int mov_read_mdhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
821 MOVStreamContext
*sc
;
823 char language
[4] = {0};
825 int64_t creation_time
;
827 if (c
->fc
->nb_streams
< 1)
829 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
832 if (sc
->time_scale
) {
833 av_log(c
->fc
, AV_LOG_ERROR
, "Multiple mdhd?\n");
834 return AVERROR_INVALIDDATA
;
837 version
= avio_r8(pb
);
839 avpriv_request_sample(c
->fc
, "Version %d", version
);
840 return AVERROR_PATCHWELCOME
;
842 avio_rb24(pb
); /* flags */
844 creation_time
= avio_rb64(pb
);
847 creation_time
= avio_rb32(pb
);
848 avio_rb32(pb
); /* modification time */
850 mov_metadata_creation_time(&st
->metadata
, creation_time
);
852 sc
->time_scale
= avio_rb32(pb
);
853 st
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
855 lang
= avio_rb16(pb
); /* language */
856 if (ff_mov_lang_to_iso639(lang
, language
))
857 av_dict_set(&st
->metadata
, "language", language
, 0);
858 avio_rb16(pb
); /* quality */
863 static int mov_read_mvhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
865 int64_t creation_time
;
866 int version
= avio_r8(pb
); /* version */
867 avio_rb24(pb
); /* flags */
870 creation_time
= avio_rb64(pb
);
873 creation_time
= avio_rb32(pb
);
874 avio_rb32(pb
); /* modification time */
876 mov_metadata_creation_time(&c
->fc
->metadata
, creation_time
);
877 c
->time_scale
= avio_rb32(pb
); /* time scale */
879 av_dlog(c
->fc
, "time scale = %i\n", c
->time_scale
);
881 c
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
882 // set the AVCodecContext duration because the duration of individual tracks
884 if (c
->time_scale
> 0 && !c
->trex_data
)
885 c
->fc
->duration
= av_rescale(c
->duration
, AV_TIME_BASE
, c
->time_scale
);
886 avio_rb32(pb
); /* preferred scale */
888 avio_rb16(pb
); /* preferred volume */
890 avio_skip(pb
, 10); /* reserved */
892 avio_skip(pb
, 36); /* display matrix */
894 avio_rb32(pb
); /* preview time */
895 avio_rb32(pb
); /* preview duration */
896 avio_rb32(pb
); /* poster time */
897 avio_rb32(pb
); /* selection time */
898 avio_rb32(pb
); /* selection duration */
899 avio_rb32(pb
); /* current time */
900 avio_rb32(pb
); /* next track ID */
904 static int mov_read_enda(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
909 if (c
->fc
->nb_streams
< 1)
911 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
913 little_endian
= avio_rb16(pb
) & 0xFF;
914 av_dlog(c
->fc
, "enda %d\n", little_endian
);
915 if (little_endian
== 1) {
916 switch (st
->codec
->codec_id
) {
917 case AV_CODEC_ID_PCM_S24BE
:
918 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S24LE
;
920 case AV_CODEC_ID_PCM_S32BE
:
921 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S32LE
;
923 case AV_CODEC_ID_PCM_F32BE
:
924 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F32LE
;
926 case AV_CODEC_ID_PCM_F64BE
:
927 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F64LE
;
936 static int mov_read_colr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
939 char color_parameter_type
[5] = { 0 };
940 int color_primaries
, color_trc
, color_matrix
;
942 if (c
->fc
->nb_streams
< 1)
944 st
= c
->fc
->streams
[c
->fc
->nb_streams
- 1];
946 avio_read(pb
, color_parameter_type
, 4);
947 if (strncmp(color_parameter_type
, "nclx", 4) &&
948 strncmp(color_parameter_type
, "nclc", 4)) {
949 av_log(c
->fc
, AV_LOG_WARNING
, "unsupported color_parameter_type %s\n",
950 color_parameter_type
);
954 color_primaries
= avio_rb16(pb
);
955 color_trc
= avio_rb16(pb
);
956 color_matrix
= avio_rb16(pb
);
958 av_dlog(c
->fc
, "%s: pri %d trc %d matrix %d",
959 color_parameter_type
, color_primaries
, color_trc
, color_matrix
);
962 uint8_t color_range
= avio_r8(pb
) >> 7;
963 av_dlog(c
->fc
, " full %"PRIu8
"", color_range
);
965 st
->codec
->color_range
= AVCOL_RANGE_JPEG
;
967 st
->codec
->color_range
= AVCOL_RANGE_MPEG
;
968 /* 14496-12 references JPEG XR specs (rather than the more complete
969 * 23001-8) so some adjusting is required */
970 if (color_primaries
>= AVCOL_PRI_FILM
)
971 color_primaries
= AVCOL_PRI_UNSPECIFIED
;
972 if ((color_trc
>= AVCOL_TRC_LINEAR
&&
973 color_trc
<= AVCOL_TRC_LOG_SQRT
) ||
974 color_trc
>= AVCOL_TRC_BT2020_10
)
975 color_trc
= AVCOL_TRC_UNSPECIFIED
;
976 if (color_matrix
>= AVCOL_SPC_BT2020_NCL
)
977 color_matrix
= AVCOL_SPC_UNSPECIFIED
;
978 st
->codec
->color_primaries
= color_primaries
;
979 st
->codec
->color_trc
= color_trc
;
980 st
->codec
->colorspace
= color_matrix
;
982 /* color primaries, Table 4-4 */
983 switch (color_primaries
) {
984 case 1: st
->codec
->color_primaries
= AVCOL_PRI_BT709
; break;
985 case 5: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE170M
; break;
986 case 6: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE240M
; break;
988 /* color transfer, Table 4-5 */
990 case 1: st
->codec
->color_trc
= AVCOL_TRC_BT709
; break;
991 case 7: st
->codec
->color_trc
= AVCOL_TRC_SMPTE240M
; break;
993 /* color matrix, Table 4-6 */
994 switch (color_matrix
) {
995 case 1: st
->codec
->colorspace
= AVCOL_SPC_BT709
; break;
996 case 6: st
->codec
->colorspace
= AVCOL_SPC_BT470BG
; break;
997 case 7: st
->codec
->colorspace
= AVCOL_SPC_SMPTE240M
; break;
1000 av_dlog(c
->fc
, "\n");
1005 static int mov_read_fiel(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1008 unsigned mov_field_order
;
1009 enum AVFieldOrder decoded_field_order
= AV_FIELD_UNKNOWN
;
1011 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1013 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1015 return AVERROR_INVALIDDATA
;
1016 mov_field_order
= avio_rb16(pb
);
1017 if ((mov_field_order
& 0xFF00) == 0x0100)
1018 decoded_field_order
= AV_FIELD_PROGRESSIVE
;
1019 else if ((mov_field_order
& 0xFF00) == 0x0200) {
1020 switch (mov_field_order
& 0xFF) {
1021 case 0x01: decoded_field_order
= AV_FIELD_TT
;
1023 case 0x06: decoded_field_order
= AV_FIELD_BB
;
1025 case 0x09: decoded_field_order
= AV_FIELD_TB
;
1027 case 0x0E: decoded_field_order
= AV_FIELD_BT
;
1031 if (decoded_field_order
== AV_FIELD_UNKNOWN
&& mov_field_order
) {
1032 av_log(NULL
, AV_LOG_ERROR
, "Unknown MOV field order 0x%04x\n", mov_field_order
);
1034 st
->codec
->field_order
= decoded_field_order
;
1039 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1040 static int mov_read_extradata(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
,
1041 enum AVCodecID codec_id
)
1048 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1050 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1052 if (st
->codec
->codec_id
!= codec_id
)
1053 return 0; /* unexpected codec_id - don't mess with extradata */
1055 size
= (uint64_t)st
->codec
->extradata_size
+ atom
.size
+ 8 + FF_INPUT_BUFFER_PADDING_SIZE
;
1056 if (size
> INT_MAX
|| (uint64_t)atom
.size
> INT_MAX
)
1057 return AVERROR_INVALIDDATA
;
1058 if ((err
= av_reallocp(&st
->codec
->extradata
, size
)) < 0) {
1059 st
->codec
->extradata_size
= 0;
1062 buf
= st
->codec
->extradata
+ st
->codec
->extradata_size
;
1063 st
->codec
->extradata_size
= size
- FF_INPUT_BUFFER_PADDING_SIZE
;
1064 AV_WB32( buf
, atom
.size
+ 8);
1065 AV_WL32( buf
+ 4, atom
.type
);
1066 err
= avio_read(pb
, buf
+ 8, atom
.size
);
1069 } else if (err
< atom
.size
) {
1070 av_log(c
->fc
, AV_LOG_WARNING
, "truncated extradata\n");
1071 st
->codec
->extradata_size
-= atom
.size
- err
;
1073 memset(buf
+ 8 + err
, 0, FF_INPUT_BUFFER_PADDING_SIZE
);
1077 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1078 static int mov_read_alac(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1080 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_ALAC
);
1083 static int mov_read_avss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1085 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVS
);
1088 static int mov_read_jp2h(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1090 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_JPEG2000
);
1093 static int mov_read_avid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1095 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVUI
);
1097 ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_DNXHD
);
1101 static int mov_read_targa_y216(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1103 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_TARGA_Y216
);
1105 if (!ret
&& c
->fc
->nb_streams
>= 1) {
1106 AVCodecContext
*avctx
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1107 if (avctx
->extradata_size
>= 40) {
1108 avctx
->height
= AV_RB16(&avctx
->extradata
[36]);
1109 avctx
->width
= AV_RB16(&avctx
->extradata
[38]);
1115 static int mov_read_ares(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1117 if (c
->fc
->nb_streams
>= 1) {
1118 AVCodecContext
*codec
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1119 if (codec
->codec_tag
== MKTAG('A', 'V', 'i', 'n') &&
1120 codec
->codec_id
== AV_CODEC_ID_H264
&&
1123 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1124 if (avio_rb16(pb
) == 0xd4d)
1125 codec
->width
= 1440;
1130 return mov_read_avid(c
, pb
, atom
);
1133 static int mov_read_svq3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1135 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_SVQ3
);
1138 static int mov_read_wave(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1142 if (c
->fc
->nb_streams
< 1)
1144 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1146 if ((uint64_t)atom
.size
> (1<<30))
1147 return AVERROR_INVALIDDATA
;
1149 if (st
->codec
->codec_id
== AV_CODEC_ID_QDM2
||
1150 st
->codec
->codec_id
== AV_CODEC_ID_QDMC
||
1151 st
->codec
->codec_id
== AV_CODEC_ID_SPEEX
) {
1152 // pass all frma atom to codec, needed at least for QDMC and QDM2
1153 av_free(st
->codec
->extradata
);
1154 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1155 return AVERROR(ENOMEM
);
1156 } else if (atom
.size
> 8) { /* to read frma, esds atoms */
1158 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
1161 avio_skip(pb
, atom
.size
);
1166 * This function reads atom content and puts data in extradata without tag
1167 * nor size unlike mov_read_extradata.
1169 static int mov_read_glbl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1173 if (c
->fc
->nb_streams
< 1)
1175 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1177 if ((uint64_t)atom
.size
> (1<<30))
1178 return AVERROR_INVALIDDATA
;
1180 if (atom
.size
>= 10) {
1181 // Broken files created by legacy versions of libavformat will
1182 // wrap a whole fiel atom inside of a glbl atom.
1183 unsigned size
= avio_rb32(pb
);
1184 unsigned type
= avio_rl32(pb
);
1185 avio_seek(pb
, -8, SEEK_CUR
);
1186 if (type
== MKTAG('f','i','e','l') && size
== atom
.size
)
1187 return mov_read_default(c
, pb
, atom
);
1189 if (st
->codec
->extradata_size
> 1 && st
->codec
->extradata
) {
1190 av_log(c
, AV_LOG_WARNING
, "ignoring multiple glbl\n");
1193 av_free(st
->codec
->extradata
);
1194 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1195 return AVERROR(ENOMEM
);
1200 static int mov_read_dvc1(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1203 uint8_t profile_level
;
1206 if (c
->fc
->nb_streams
< 1)
1208 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1210 if (atom
.size
>= (1<<28) || atom
.size
< 7)
1211 return AVERROR_INVALIDDATA
;
1213 profile_level
= avio_r8(pb
);
1214 if ((profile_level
& 0xf0) != 0xc0)
1217 avio_seek(pb
, 6, SEEK_CUR
);
1218 av_free(st
->codec
->extradata
);
1219 if ((ret
= ff_get_extradata(st
->codec
, pb
, atom
.size
- 7)) < 0)
1226 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1227 * but can have extradata appended at the end after the 40 bytes belonging
1230 static int mov_read_strf(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1234 if (c
->fc
->nb_streams
< 1)
1236 if (atom
.size
<= 40)
1238 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1240 if ((uint64_t)atom
.size
> (1<<30))
1241 return AVERROR_INVALIDDATA
;
1244 av_free(st
->codec
->extradata
);
1245 if (ff_get_extradata(st
->codec
, pb
, atom
.size
- 40) < 0)
1246 return AVERROR(ENOMEM
);
1250 static int mov_read_stco(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1253 MOVStreamContext
*sc
;
1254 unsigned int i
, entries
;
1256 if (c
->fc
->nb_streams
< 1)
1258 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1261 avio_r8(pb
); /* version */
1262 avio_rb24(pb
); /* flags */
1264 entries
= avio_rb32(pb
);
1269 if (sc
->chunk_offsets
)
1270 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STCO atom\n");
1271 av_free(sc
->chunk_offsets
);
1272 sc
->chunk_count
= 0;
1273 sc
->chunk_offsets
= av_malloc_array(entries
, sizeof(*sc
->chunk_offsets
));
1274 if (!sc
->chunk_offsets
)
1275 return AVERROR(ENOMEM
);
1276 sc
->chunk_count
= entries
;
1278 if (atom
.type
== MKTAG('s','t','c','o'))
1279 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1280 sc
->chunk_offsets
[i
] = avio_rb32(pb
);
1281 else if (atom
.type
== MKTAG('c','o','6','4'))
1282 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1283 sc
->chunk_offsets
[i
] = avio_rb64(pb
);
1285 return AVERROR_INVALIDDATA
;
1287 sc
->chunk_count
= i
;
1289 if (pb
->eof_reached
)
1296 * Compute codec id for 'lpcm' tag.
1297 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1299 enum AVCodecID
ff_mov_get_lpcm_codec_id(int bps
, int flags
)
1306 return ff_get_pcm_codec_id(bps
, flags
& 1, flags
& 2, flags
& 4 ? -1 : 0);
1309 static int mov_codec_id(AVStream
*st
, uint32_t format
)
1311 int id
= ff_codec_get_id(ff_codec_movaudio_tags
, format
);
1314 ((format
& 0xFFFF) == 'm' + ('s' << 8) ||
1315 (format
& 0xFFFF) == 'T' + ('S' << 8)))
1316 id
= ff_codec_get_id(ff_codec_wav_tags
, av_bswap32(format
) & 0xFFFF);
1318 if (st
->codec
->codec_type
!= AVMEDIA_TYPE_VIDEO
&& id
> 0) {
1319 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1320 } else if (st
->codec
->codec_type
!= AVMEDIA_TYPE_AUDIO
&&
1321 /* skip old asf mpeg4 tag */
1322 format
&& format
!= MKTAG('m','p','4','s')) {
1323 id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1325 id
= ff_codec_get_id(ff_codec_bmp_tags
, format
);
1327 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
1328 else if (st
->codec
->codec_type
== AVMEDIA_TYPE_DATA
||
1329 (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
&&
1330 st
->codec
->codec_id
== AV_CODEC_ID_NONE
)) {
1331 id
= ff_codec_get_id(ff_codec_movsubtitle_tags
, format
);
1333 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
1337 st
->codec
->codec_tag
= format
;
1342 static void mov_parse_stsd_video(MOVContext
*c
, AVIOContext
*pb
,
1343 AVStream
*st
, MOVStreamContext
*sc
)
1345 uint8_t codec_name
[32];
1346 unsigned int color_depth
, len
, j
;
1347 int color_greyscale
;
1350 avio_rb16(pb
); /* version */
1351 avio_rb16(pb
); /* revision level */
1352 avio_rb32(pb
); /* vendor */
1353 avio_rb32(pb
); /* temporal quality */
1354 avio_rb32(pb
); /* spatial quality */
1356 st
->codec
->width
= avio_rb16(pb
); /* width */
1357 st
->codec
->height
= avio_rb16(pb
); /* height */
1359 avio_rb32(pb
); /* horiz resolution */
1360 avio_rb32(pb
); /* vert resolution */
1361 avio_rb32(pb
); /* data size, always 0 */
1362 avio_rb16(pb
); /* frames per samples */
1364 len
= avio_r8(pb
); /* codec name, pascal string */
1367 mov_read_mac_string(c
, pb
, len
, codec_name
, sizeof(codec_name
));
1369 avio_skip(pb
, 31 - len
);
1372 av_dict_set(&st
->metadata
, "encoder", codec_name
, 0);
1374 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1375 if (!memcmp(codec_name
, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1376 st
->codec
->codec_tag
= MKTAG('I', '4', '2', '0');
1377 st
->codec
->width
&= ~1;
1378 st
->codec
->height
&= ~1;
1380 /* Flash Media Server uses tag H263 with Sorenson Spark */
1381 if (st
->codec
->codec_tag
== MKTAG('H','2','6','3') &&
1382 !memcmp(codec_name
, "Sorenson H263", 13))
1383 st
->codec
->codec_id
= AV_CODEC_ID_FLV1
;
1385 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* depth */
1386 color_table_id
= avio_rb16(pb
); /* colortable id */
1387 av_dlog(c
->fc
, "depth %d, ctab id %d\n",
1388 st
->codec
->bits_per_coded_sample
, color_table_id
);
1389 /* figure out the palette situation */
1390 color_depth
= st
->codec
->bits_per_coded_sample
& 0x1F;
1391 color_greyscale
= st
->codec
->bits_per_coded_sample
& 0x20;
1392 /* Do not create a greyscale palette for cinepak */
1393 if (color_greyscale
&& st
->codec
->codec_id
== AV_CODEC_ID_CINEPAK
)
1396 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1397 if ((color_depth
== 2) || (color_depth
== 4) || (color_depth
== 8)) {
1398 /* for palette traversal */
1399 unsigned int color_start
, color_count
, color_end
;
1400 unsigned char a
, r
, g
, b
;
1402 if (color_greyscale
) {
1403 int color_index
, color_dec
;
1404 /* compute the greyscale palette */
1405 st
->codec
->bits_per_coded_sample
= color_depth
;
1406 color_count
= 1 << color_depth
;
1408 color_dec
= 256 / (color_count
- 1);
1409 for (j
= 0; j
< color_count
; j
++) {
1410 r
= g
= b
= color_index
;
1411 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1412 color_index
-= color_dec
;
1413 if (color_index
< 0)
1416 } else if (color_table_id
) {
1417 const uint8_t *color_table
;
1418 /* if flag bit 3 is set, use the default palette */
1419 color_count
= 1 << color_depth
;
1420 if (color_depth
== 2)
1421 color_table
= ff_qt_default_palette_4
;
1422 else if (color_depth
== 4)
1423 color_table
= ff_qt_default_palette_16
;
1425 color_table
= ff_qt_default_palette_256
;
1427 for (j
= 0; j
< color_count
; j
++) {
1428 r
= color_table
[j
* 3 + 0];
1429 g
= color_table
[j
* 3 + 1];
1430 b
= color_table
[j
* 3 + 2];
1431 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1434 /* load the palette from the file */
1435 color_start
= avio_rb32(pb
);
1436 color_count
= avio_rb16(pb
);
1437 color_end
= avio_rb16(pb
);
1438 if ((color_start
<= 255) && (color_end
<= 255)) {
1439 for (j
= color_start
; j
<= color_end
; j
++) {
1440 /* each A, R, G, or B component is 16 bits;
1441 * only use the top 8 bits */
1450 sc
->palette
[j
] = (a
<< 24 ) | (r
<< 16) | (g
<< 8) | (b
);
1454 sc
->has_palette
= 1;
1458 static void mov_parse_stsd_audio(MOVContext
*c
, AVIOContext
*pb
,
1459 AVStream
*st
, MOVStreamContext
*sc
)
1461 int bits_per_sample
, flags
;
1462 uint16_t version
= avio_rb16(pb
);
1463 AVDictionaryEntry
*compatible_brands
= av_dict_get(c
->fc
->metadata
, "compatible_brands", NULL
, AV_DICT_MATCH_CASE
);
1465 avio_rb16(pb
); /* revision level */
1466 avio_rb32(pb
); /* vendor */
1468 st
->codec
->channels
= avio_rb16(pb
); /* channel count */
1469 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* sample size */
1470 av_dlog(c
->fc
, "audio channels %d\n", st
->codec
->channels
);
1472 sc
->audio_cid
= avio_rb16(pb
);
1473 avio_rb16(pb
); /* packet size = 0 */
1475 st
->codec
->sample_rate
= ((avio_rb32(pb
) >> 16));
1477 // Read QT version 1 fields. In version 0 these do not exist.
1478 av_dlog(c
->fc
, "version =%d, isom =%d\n", version
, c
->isom
);
1480 (compatible_brands
&& strstr(compatible_brands
->value
, "qt "))) {
1483 sc
->samples_per_frame
= avio_rb32(pb
);
1484 avio_rb32(pb
); /* bytes per packet */
1485 sc
->bytes_per_frame
= avio_rb32(pb
);
1486 avio_rb32(pb
); /* bytes per sample */
1487 } else if (version
== 2) {
1488 avio_rb32(pb
); /* sizeof struct only */
1489 st
->codec
->sample_rate
= av_int2double(avio_rb64(pb
));
1490 st
->codec
->channels
= avio_rb32(pb
);
1491 avio_rb32(pb
); /* always 0x7F000000 */
1492 st
->codec
->bits_per_coded_sample
= avio_rb32(pb
);
1494 flags
= avio_rb32(pb
); /* lpcm format specific flag */
1495 sc
->bytes_per_frame
= avio_rb32(pb
);
1496 sc
->samples_per_frame
= avio_rb32(pb
);
1497 if (st
->codec
->codec_tag
== MKTAG('l','p','c','m'))
1498 st
->codec
->codec_id
=
1499 ff_mov_get_lpcm_codec_id(st
->codec
->bits_per_coded_sample
,
1504 switch (st
->codec
->codec_id
) {
1505 case AV_CODEC_ID_PCM_S8
:
1506 case AV_CODEC_ID_PCM_U8
:
1507 if (st
->codec
->bits_per_coded_sample
== 16)
1508 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16BE
;
1510 case AV_CODEC_ID_PCM_S16LE
:
1511 case AV_CODEC_ID_PCM_S16BE
:
1512 if (st
->codec
->bits_per_coded_sample
== 8)
1513 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S8
;
1514 else if (st
->codec
->bits_per_coded_sample
== 24)
1515 st
->codec
->codec_id
=
1516 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE
?
1517 AV_CODEC_ID_PCM_S24BE
: AV_CODEC_ID_PCM_S24LE
;
1518 else if (st
->codec
->bits_per_coded_sample
== 32)
1519 st
->codec
->codec_id
=
1520 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE
?
1521 AV_CODEC_ID_PCM_S32BE
: AV_CODEC_ID_PCM_S32LE
;
1523 /* set values for old format before stsd version 1 appeared */
1524 case AV_CODEC_ID_MACE3
:
1525 sc
->samples_per_frame
= 6;
1526 sc
->bytes_per_frame
= 2 * st
->codec
->channels
;
1528 case AV_CODEC_ID_MACE6
:
1529 sc
->samples_per_frame
= 6;
1530 sc
->bytes_per_frame
= 1 * st
->codec
->channels
;
1532 case AV_CODEC_ID_ADPCM_IMA_QT
:
1533 sc
->samples_per_frame
= 64;
1534 sc
->bytes_per_frame
= 34 * st
->codec
->channels
;
1536 case AV_CODEC_ID_GSM
:
1537 sc
->samples_per_frame
= 160;
1538 sc
->bytes_per_frame
= 33;
1544 bits_per_sample
= av_get_bits_per_sample(st
->codec
->codec_id
);
1545 if (bits_per_sample
) {
1546 st
->codec
->bits_per_coded_sample
= bits_per_sample
;
1547 sc
->sample_size
= (bits_per_sample
>> 3) * st
->codec
->channels
;
1551 static void mov_parse_stsd_subtitle(MOVContext
*c
, AVIOContext
*pb
,
1552 AVStream
*st
, MOVStreamContext
*sc
,
1555 // ttxt stsd contains display flags, justification, background
1556 // color, fonts, and default styles, so fake an atom to read it
1557 MOVAtom fake_atom
= { .size
= size
};
1558 // mp4s contains a regular esds atom
1559 if (st
->codec
->codec_tag
!= AV_RL32("mp4s"))
1560 mov_read_glbl(c
, pb
, fake_atom
);
1561 st
->codec
->width
= sc
->width
;
1562 st
->codec
->height
= sc
->height
;
1565 static uint32_t yuv_to_rgba(uint32_t ycbcr
)
1570 y
= (ycbcr
>> 16) & 0xFF;
1571 cr
= (ycbcr
>> 8) & 0xFF;
1574 b
= av_clip_uint8(1.164 * (y
- 16) + 2.018 * (cb
- 128));
1575 g
= av_clip_uint8(1.164 * (y
- 16) - 0.813 * (cr
- 128) - 0.391 * (cb
- 128));
1576 r
= av_clip_uint8(1.164 * (y
- 16) + 1.596 * (cr
- 128));
1578 return (r
<< 16) | (g
<< 8) | b
;
1581 static int mov_rewrite_dvd_sub_extradata(AVStream
*st
)
1583 char buf
[256] = {0};
1584 uint8_t *src
= st
->codec
->extradata
;
1587 if (st
->codec
->extradata_size
!= 64)
1590 if (st
->codec
->width
> 0 && st
->codec
->height
> 0)
1591 snprintf(buf
, sizeof(buf
), "size: %dx%d\n",
1592 st
->codec
->width
, st
->codec
->height
);
1593 av_strlcat(buf
, "palette: ", sizeof(buf
));
1595 for (i
= 0; i
< 16; i
++) {
1596 uint32_t yuv
= AV_RB32(src
+ i
* 4);
1597 uint32_t rgba
= yuv_to_rgba(yuv
);
1599 av_strlcatf(buf
, sizeof(buf
), "%06"PRIx32
"%s", rgba
, i
!= 15 ? ", " : "");
1602 if (av_strlcat(buf
, "\n", sizeof(buf
)) >= sizeof(buf
))
1605 av_freep(&st
->codec
->extradata
);
1606 st
->codec
->extradata_size
= 0;
1607 st
->codec
->extradata
= av_mallocz(strlen(buf
) + FF_INPUT_BUFFER_PADDING_SIZE
);
1608 if (!st
->codec
->extradata
)
1609 return AVERROR(ENOMEM
);
1610 st
->codec
->extradata_size
= strlen(buf
);
1611 memcpy(st
->codec
->extradata
, buf
, st
->codec
->extradata_size
);
1616 static int mov_parse_stsd_data(MOVContext
*c
, AVIOContext
*pb
,
1617 AVStream
*st
, MOVStreamContext
*sc
,
1620 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d')) {
1621 if ((int)size
!= size
|| ff_get_extradata(st
->codec
, pb
, size
) < 0)
1622 return AVERROR(ENOMEM
);
1624 MOVStreamContext
*tmcd_ctx
= st
->priv_data
;
1626 val
= AV_RB32(st
->codec
->extradata
+ 4);
1627 tmcd_ctx
->tmcd_flags
= val
;
1629 st
->codec
->flags2
|= CODEC_FLAG2_DROP_FRAME_TIMECODE
;
1630 st
->codec
->time_base
.den
= st
->codec
->extradata
[16]; /* number of frame */
1631 st
->codec
->time_base
.num
= 1;
1633 uint32_t len
= AV_RB32(st
->codec
->extradata
+ 18); /* name atom length */
1634 uint32_t format
= AV_RB32(st
->codec
->extradata
+ 22);
1635 if (format
== AV_RB32("name") && (int64_t)size
>= (int64_t)len
+ 18) {
1636 uint16_t str_size
= AV_RB16(st
->codec
->extradata
+ 26); /* string length */
1637 if (str_size
> 0 && size
>= (int)str_size
+ 26) {
1638 char *reel_name
= av_malloc(str_size
+ 1);
1640 return AVERROR(ENOMEM
);
1641 memcpy(reel_name
, st
->codec
->extradata
+ 30, str_size
);
1642 reel_name
[str_size
] = 0; /* Add null terminator */
1643 /* don't add reel_name if emtpy string */
1644 if (*reel_name
== 0) {
1647 av_dict_set(&st
->metadata
, "reel_name", reel_name
, AV_DICT_DONT_STRDUP_VAL
);
1654 /* other codec type, just skip (rtp, mp4s ...) */
1655 avio_skip(pb
, size
);
1660 static int mov_finalize_stsd_codec(MOVContext
*c
, AVIOContext
*pb
,
1661 AVStream
*st
, MOVStreamContext
*sc
)
1663 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
1664 !st
->codec
->sample_rate
&& sc
->time_scale
> 1)
1665 st
->codec
->sample_rate
= sc
->time_scale
;
1667 /* special codec parameters handling */
1668 switch (st
->codec
->codec_id
) {
1669 #if CONFIG_DV_DEMUXER
1670 case AV_CODEC_ID_DVAUDIO
:
1671 c
->dv_fctx
= avformat_alloc_context();
1672 c
->dv_demux
= avpriv_dv_init_demux(c
->dv_fctx
);
1674 av_log(c
->fc
, AV_LOG_ERROR
, "dv demux context init error\n");
1675 return AVERROR(ENOMEM
);
1677 sc
->dv_audio_container
= 1;
1678 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16LE
;
1681 /* no ifdef since parameters are always those */
1682 case AV_CODEC_ID_QCELP
:
1683 st
->codec
->channels
= 1;
1684 // force sample rate for qcelp when not stored in mov
1685 if (st
->codec
->codec_tag
!= MKTAG('Q','c','l','p'))
1686 st
->codec
->sample_rate
= 8000;
1687 // FIXME: Why is the following needed for some files?
1688 sc
->samples_per_frame
= 160;
1689 if (!sc
->bytes_per_frame
)
1690 sc
->bytes_per_frame
= 35;
1692 case AV_CODEC_ID_AMR_NB
:
1693 st
->codec
->channels
= 1;
1694 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1695 st
->codec
->sample_rate
= 8000;
1697 case AV_CODEC_ID_AMR_WB
:
1698 st
->codec
->channels
= 1;
1699 st
->codec
->sample_rate
= 16000;
1701 case AV_CODEC_ID_MP2
:
1702 case AV_CODEC_ID_MP3
:
1703 /* force type after stsd for m1a hdlr */
1704 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1705 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1707 case AV_CODEC_ID_GSM
:
1708 case AV_CODEC_ID_ADPCM_MS
:
1709 case AV_CODEC_ID_ADPCM_IMA_WAV
:
1710 case AV_CODEC_ID_ILBC
:
1711 case AV_CODEC_ID_MACE3
:
1712 case AV_CODEC_ID_MACE6
:
1713 case AV_CODEC_ID_QDM2
:
1714 st
->codec
->block_align
= sc
->bytes_per_frame
;
1716 case AV_CODEC_ID_ALAC
:
1717 if (st
->codec
->extradata_size
== 36) {
1718 st
->codec
->channels
= AV_RB8 (st
->codec
->extradata
+ 21);
1719 st
->codec
->sample_rate
= AV_RB32(st
->codec
->extradata
+ 32);
1722 case AV_CODEC_ID_AC3
:
1723 case AV_CODEC_ID_EAC3
:
1724 case AV_CODEC_ID_MPEG1VIDEO
:
1725 case AV_CODEC_ID_VC1
:
1726 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1734 static int mov_skip_multiple_stsd(MOVContext
*c
, AVIOContext
*pb
,
1735 int codec_tag
, int format
,
1738 int video_codec_id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1741 (codec_tag
!= format
&&
1742 (c
->fc
->video_codec_id
? video_codec_id
!= c
->fc
->video_codec_id
1743 : codec_tag
!= MKTAG('j','p','e','g')))) {
1744 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1745 * export it as a separate AVStream but this needs a few changes
1746 * in the MOV demuxer, patch welcome. */
1748 av_log(c
->fc
, AV_LOG_WARNING
, "multiple fourcc not supported\n");
1749 avio_skip(pb
, size
);
1752 if ( codec_tag
== AV_RL32("avc1") ||
1753 codec_tag
== AV_RL32("hvc1") ||
1754 codec_tag
== AV_RL32("hev1")
1756 av_log(c
->fc
, AV_LOG_WARNING
, "Concatenated H.264 or H.265 might not play correctly.\n");
1761 int ff_mov_read_stsd_entries(MOVContext
*c
, AVIOContext
*pb
, int entries
)
1764 MOVStreamContext
*sc
;
1765 int pseudo_stream_id
;
1767 if (c
->fc
->nb_streams
< 1)
1769 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1772 for (pseudo_stream_id
= 0;
1773 pseudo_stream_id
< entries
&& !pb
->eof_reached
;
1774 pseudo_stream_id
++) {
1775 //Parsing Sample description table
1777 int ret
, dref_id
= 1;
1778 MOVAtom a
= { AV_RL32("stsd") };
1779 int64_t start_pos
= avio_tell(pb
);
1780 int64_t size
= avio_rb32(pb
); /* size */
1781 uint32_t format
= avio_rl32(pb
); /* data format */
1784 avio_rb32(pb
); /* reserved */
1785 avio_rb16(pb
); /* reserved */
1786 dref_id
= avio_rb16(pb
);
1787 }else if (size
<= 7){
1788 av_log(c
->fc
, AV_LOG_ERROR
, "invalid size %"PRId64
" in stsd\n", size
);
1789 return AVERROR_INVALIDDATA
;
1792 if (mov_skip_multiple_stsd(c
, pb
, st
->codec
->codec_tag
, format
,
1793 size
- (avio_tell(pb
) - start_pos
)))
1796 sc
->pseudo_stream_id
= st
->codec
->codec_tag
? -1 : pseudo_stream_id
;
1797 sc
->dref_id
= dref_id
;
1799 id
= mov_codec_id(st
, format
);
1801 av_dlog(c
->fc
, "size=%"PRId64
" 4CC= %c%c%c%c codec_type=%d\n", size
,
1802 (format
>> 0) & 0xff, (format
>> 8) & 0xff, (format
>> 16) & 0xff,
1803 (format
>> 24) & 0xff, st
->codec
->codec_type
);
1805 if (st
->codec
->codec_type
==AVMEDIA_TYPE_VIDEO
) {
1806 st
->codec
->codec_id
= id
;
1807 mov_parse_stsd_video(c
, pb
, st
, sc
);
1808 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_AUDIO
) {
1809 st
->codec
->codec_id
= id
;
1810 mov_parse_stsd_audio(c
, pb
, st
, sc
);
1811 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_SUBTITLE
){
1812 st
->codec
->codec_id
= id
;
1813 mov_parse_stsd_subtitle(c
, pb
, st
, sc
,
1814 size
- (avio_tell(pb
) - start_pos
));
1816 ret
= mov_parse_stsd_data(c
, pb
, st
, sc
,
1817 size
- (avio_tell(pb
) - start_pos
));
1821 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1822 a
.size
= size
- (avio_tell(pb
) - start_pos
);
1824 if ((ret
= mov_read_default(c
, pb
, a
)) < 0)
1826 } else if (a
.size
> 0)
1827 avio_skip(pb
, a
.size
);
1830 if (pb
->eof_reached
)
1833 return mov_finalize_stsd_codec(c
, pb
, st
, sc
);
1836 static int mov_read_stsd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1840 avio_r8(pb
); /* version */
1841 avio_rb24(pb
); /* flags */
1842 entries
= avio_rb32(pb
);
1844 return ff_mov_read_stsd_entries(c
, pb
, entries
);
1847 static int mov_read_stsc(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1850 MOVStreamContext
*sc
;
1851 unsigned int i
, entries
;
1853 if (c
->fc
->nb_streams
< 1)
1855 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1858 avio_r8(pb
); /* version */
1859 avio_rb24(pb
); /* flags */
1861 entries
= avio_rb32(pb
);
1863 av_dlog(c
->fc
, "track[%i].stsc.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
1868 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSC atom\n");
1869 av_free(sc
->stsc_data
);
1871 sc
->stsc_data
= av_malloc_array(entries
, sizeof(*sc
->stsc_data
));
1873 return AVERROR(ENOMEM
);
1875 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1876 sc
->stsc_data
[i
].first
= avio_rb32(pb
);
1877 sc
->stsc_data
[i
].count
= avio_rb32(pb
);
1878 sc
->stsc_data
[i
].id
= avio_rb32(pb
);
1883 if (pb
->eof_reached
)
1889 static int mov_read_stps(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1892 MOVStreamContext
*sc
;
1893 unsigned i
, entries
;
1895 if (c
->fc
->nb_streams
< 1)
1897 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1900 avio_rb32(pb
); // version + flags
1902 entries
= avio_rb32(pb
);
1904 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STPS atom\n");
1905 av_free(sc
->stps_data
);
1907 sc
->stps_data
= av_malloc_array(entries
, sizeof(*sc
->stps_data
));
1909 return AVERROR(ENOMEM
);
1911 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1912 sc
->stps_data
[i
] = avio_rb32(pb
);
1913 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1918 if (pb
->eof_reached
)
1924 static int mov_read_stss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1927 MOVStreamContext
*sc
;
1928 unsigned int i
, entries
;
1930 if (c
->fc
->nb_streams
< 1)
1932 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1935 avio_r8(pb
); /* version */
1936 avio_rb24(pb
); /* flags */
1938 entries
= avio_rb32(pb
);
1940 av_dlog(c
->fc
, "keyframe_count = %d\n", entries
);
1944 sc
->keyframe_absent
= 1;
1945 if (!st
->need_parsing
&& st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
)
1946 st
->need_parsing
= AVSTREAM_PARSE_HEADERS
;
1950 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSS atom\n");
1951 av_free(sc
->keyframes
);
1952 sc
->keyframe_count
= 0;
1953 sc
->keyframes
= av_malloc_array(entries
, sizeof(*sc
->keyframes
));
1955 return AVERROR(ENOMEM
);
1957 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1958 sc
->keyframes
[i
] = avio_rb32(pb
);
1959 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1962 sc
->keyframe_count
= i
;
1964 if (pb
->eof_reached
)
1970 static int mov_read_stsz(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1973 MOVStreamContext
*sc
;
1974 unsigned int i
, entries
, sample_size
, field_size
, num_bytes
;
1978 if (c
->fc
->nb_streams
< 1)
1980 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1983 avio_r8(pb
); /* version */
1984 avio_rb24(pb
); /* flags */
1986 if (atom
.type
== MKTAG('s','t','s','z')) {
1987 sample_size
= avio_rb32(pb
);
1988 if (!sc
->sample_size
) /* do not overwrite value computed in stsd */
1989 sc
->sample_size
= sample_size
;
1990 sc
->stsz_sample_size
= sample_size
;
1994 avio_rb24(pb
); /* reserved */
1995 field_size
= avio_r8(pb
);
1997 entries
= avio_rb32(pb
);
1999 av_dlog(c
->fc
, "sample_size = %d sample_count = %d\n", sc
->sample_size
, entries
);
2001 sc
->sample_count
= entries
;
2005 if (field_size
!= 4 && field_size
!= 8 && field_size
!= 16 && field_size
!= 32) {
2006 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample field size %d\n", field_size
);
2007 return AVERROR_INVALIDDATA
;
2012 if (entries
>= (UINT_MAX
- 4) / field_size
)
2013 return AVERROR_INVALIDDATA
;
2014 if (sc
->sample_sizes
)
2015 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSZ atom\n");
2016 av_free(sc
->sample_sizes
);
2017 sc
->sample_count
= 0;
2018 sc
->sample_sizes
= av_malloc_array(entries
, sizeof(*sc
->sample_sizes
));
2019 if (!sc
->sample_sizes
)
2020 return AVERROR(ENOMEM
);
2022 num_bytes
= (entries
*field_size
+4)>>3;
2024 buf
= av_malloc(num_bytes
+FF_INPUT_BUFFER_PADDING_SIZE
);
2026 av_freep(&sc
->sample_sizes
);
2027 return AVERROR(ENOMEM
);
2030 if (avio_read(pb
, buf
, num_bytes
) < num_bytes
) {
2031 av_freep(&sc
->sample_sizes
);
2033 return AVERROR_INVALIDDATA
;
2036 init_get_bits(&gb
, buf
, 8*num_bytes
);
2038 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2039 sc
->sample_sizes
[i
] = get_bits_long(&gb
, field_size
);
2040 sc
->data_size
+= sc
->sample_sizes
[i
];
2043 sc
->sample_count
= i
;
2045 if (pb
->eof_reached
)
2052 static int mov_read_stts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2055 MOVStreamContext
*sc
;
2056 unsigned int i
, entries
;
2058 int64_t total_sample_count
=0;
2060 if (c
->fc
->nb_streams
< 1)
2062 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2065 avio_r8(pb
); /* version */
2066 avio_rb24(pb
); /* flags */
2067 entries
= avio_rb32(pb
);
2069 av_dlog(c
->fc
, "track[%i].stts.entries = %i\n",
2070 c
->fc
->nb_streams
-1, entries
);
2073 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STTS atom\n");
2074 av_free(sc
->stts_data
);
2076 sc
->stts_data
= av_malloc_array(entries
, sizeof(*sc
->stts_data
));
2078 return AVERROR(ENOMEM
);
2080 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2081 int sample_duration
;
2084 sample_count
=avio_rb32(pb
);
2085 sample_duration
= avio_rb32(pb
);
2087 /* sample_duration < 0 is invalid based on the spec */
2088 if (sample_duration
< 0) {
2089 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2090 sample_duration
, i
, c
->fc
->nb_streams
-1);
2091 sample_duration
= 1;
2093 if (sample_count
< 0) {
2094 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample_count=%d\n", sample_count
);
2095 return AVERROR_INVALIDDATA
;
2097 sc
->stts_data
[i
].count
= sample_count
;
2098 sc
->stts_data
[i
].duration
= sample_duration
;
2100 av_dlog(c
->fc
, "sample_count=%d, sample_duration=%d\n",
2101 sample_count
, sample_duration
);
2105 && sample_count
== 1
2106 && total_sample_count
> 100
2107 && sample_duration
/10 > duration
/ total_sample_count
)
2108 sample_duration
= duration
/ total_sample_count
;
2109 duration
+=(int64_t)sample_duration
*sample_count
;
2110 total_sample_count
+=sample_count
;
2115 sc
->duration_for_fps
+= duration
;
2116 sc
->nb_frames_for_fps
+= total_sample_count
;
2118 if (pb
->eof_reached
)
2121 st
->nb_frames
= total_sample_count
;
2123 st
->duration
= duration
;
2124 sc
->track_end
= duration
;
2128 static void mov_update_dts_shift(MOVStreamContext
*sc
, int duration
)
2131 sc
->dts_shift
= FFMAX(sc
->dts_shift
, -duration
);
2135 static int mov_read_ctts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2138 MOVStreamContext
*sc
;
2139 unsigned int i
, entries
;
2141 if (c
->fc
->nb_streams
< 1)
2143 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2146 avio_r8(pb
); /* version */
2147 avio_rb24(pb
); /* flags */
2148 entries
= avio_rb32(pb
);
2150 av_dlog(c
->fc
, "track[%i].ctts.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
2154 if (entries
>= UINT_MAX
/ sizeof(*sc
->ctts_data
))
2155 return AVERROR_INVALIDDATA
;
2156 sc
->ctts_data
= av_malloc(entries
* sizeof(*sc
->ctts_data
));
2158 return AVERROR(ENOMEM
);
2160 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2161 int count
=avio_rb32(pb
);
2162 int duration
=avio_rb32(pb
);
2164 sc
->ctts_data
[i
].count
= count
;
2165 sc
->ctts_data
[i
].duration
= duration
;
2167 av_dlog(c
->fc
, "count=%d, duration=%d\n",
2170 if (FFABS(duration
) > (1<<28) && i
+2<entries
) {
2171 av_log(c
->fc
, AV_LOG_WARNING
, "CTTS invalid\n");
2172 av_freep(&sc
->ctts_data
);
2178 mov_update_dts_shift(sc
, duration
);
2183 if (pb
->eof_reached
)
2186 av_dlog(c
->fc
, "dts shift %d\n", sc
->dts_shift
);
2191 static int mov_read_sbgp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2194 MOVStreamContext
*sc
;
2195 unsigned int i
, entries
;
2197 uint32_t grouping_type
;
2199 if (c
->fc
->nb_streams
< 1)
2201 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2204 version
= avio_r8(pb
); /* version */
2205 avio_rb24(pb
); /* flags */
2206 grouping_type
= avio_rl32(pb
);
2207 if (grouping_type
!= MKTAG( 'r','a','p',' '))
2208 return 0; /* only support 'rap ' grouping */
2210 avio_rb32(pb
); /* grouping_type_parameter */
2212 entries
= avio_rb32(pb
);
2216 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated SBGP atom\n");
2217 av_free(sc
->rap_group
);
2218 sc
->rap_group_count
= 0;
2219 sc
->rap_group
= av_malloc_array(entries
, sizeof(*sc
->rap_group
));
2221 return AVERROR(ENOMEM
);
2223 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2224 sc
->rap_group
[i
].count
= avio_rb32(pb
); /* sample_count */
2225 sc
->rap_group
[i
].index
= avio_rb32(pb
); /* group_description_index */
2228 sc
->rap_group_count
= i
;
2230 return pb
->eof_reached
? AVERROR_EOF
: 0;
2233 static void mov_build_index(MOVContext
*mov
, AVStream
*st
)
2235 MOVStreamContext
*sc
= st
->priv_data
;
2236 int64_t current_offset
;
2237 int64_t current_dts
= 0;
2238 unsigned int stts_index
= 0;
2239 unsigned int stsc_index
= 0;
2240 unsigned int stss_index
= 0;
2241 unsigned int stps_index
= 0;
2243 uint64_t stream_size
= 0;
2245 /* adjust first dts according to edit list */
2246 if ((sc
->empty_duration
|| sc
->start_time
) && mov
->time_scale
> 0) {
2247 if (sc
->empty_duration
)
2248 sc
->empty_duration
= av_rescale(sc
->empty_duration
, sc
->time_scale
, mov
->time_scale
);
2249 sc
->time_offset
= sc
->start_time
- sc
->empty_duration
;
2250 current_dts
= -sc
->time_offset
;
2251 if (sc
->ctts_count
>0 && sc
->stts_count
>0 &&
2252 sc
->ctts_data
[0].duration
/ FFMAX(sc
->stts_data
[0].duration
, 1) > 16) {
2253 /* more than 16 frames delay, dts are likely wrong
2254 this happens with files created by iMovie */
2256 st
->codec
->has_b_frames
= 1;
2260 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2261 if (!(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
2262 sc
->stts_count
== 1 && sc
->stts_data
[0].duration
== 1)) {
2263 unsigned int current_sample
= 0;
2264 unsigned int stts_sample
= 0;
2265 unsigned int sample_size
;
2266 unsigned int distance
= 0;
2267 unsigned int rap_group_index
= 0;
2268 unsigned int rap_group_sample
= 0;
2269 int rap_group_present
= sc
->rap_group_count
&& sc
->rap_group
;
2270 int key_off
= (sc
->keyframe_count
&& sc
->keyframes
[0] > 0) || (sc
->stps_count
&& sc
->stps_data
[0] > 0);
2272 current_dts
-= sc
->dts_shift
;
2274 if (!sc
->sample_count
|| st
->nb_index_entries
)
2276 if (sc
->sample_count
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2278 if (av_reallocp_array(&st
->index_entries
,
2279 st
->nb_index_entries
+ sc
->sample_count
,
2280 sizeof(*st
->index_entries
)) < 0) {
2281 st
->nb_index_entries
= 0;
2284 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ sc
->sample_count
) * sizeof(*st
->index_entries
);
2286 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2287 int64_t next_offset
= i
+1 < sc
->chunk_count
? sc
->chunk_offsets
[i
+1] : INT64_MAX
;
2288 current_offset
= sc
->chunk_offsets
[i
];
2289 while (stsc_index
+ 1 < sc
->stsc_count
&&
2290 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2293 if (next_offset
> current_offset
&& sc
->sample_size
>0 && sc
->sample_size
< sc
->stsz_sample_size
&&
2294 sc
->stsc_data
[stsc_index
].count
* (int64_t)sc
->stsz_sample_size
> next_offset
- current_offset
) {
2295 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too large), ignoring\n", sc
->stsz_sample_size
);
2296 sc
->stsz_sample_size
= sc
->sample_size
;
2298 if (sc
->stsz_sample_size
>0 && sc
->stsz_sample_size
< sc
->sample_size
) {
2299 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too small), ignoring\n", sc
->stsz_sample_size
);
2300 sc
->stsz_sample_size
= sc
->sample_size
;
2303 for (j
= 0; j
< sc
->stsc_data
[stsc_index
].count
; j
++) {
2305 if (current_sample
>= sc
->sample_count
) {
2306 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong sample count\n");
2310 if (!sc
->keyframe_absent
&& (!sc
->keyframe_count
|| current_sample
+key_off
== sc
->keyframes
[stss_index
])) {
2312 if (stss_index
+ 1 < sc
->keyframe_count
)
2314 } else if (sc
->stps_count
&& current_sample
+key_off
== sc
->stps_data
[stps_index
]) {
2316 if (stps_index
+ 1 < sc
->stps_count
)
2319 if (rap_group_present
&& rap_group_index
< sc
->rap_group_count
) {
2320 if (sc
->rap_group
[rap_group_index
].index
> 0)
2322 if (++rap_group_sample
== sc
->rap_group
[rap_group_index
].count
) {
2323 rap_group_sample
= 0;
2327 if (sc
->keyframe_absent
2329 && !rap_group_present
2330 && (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
|| (i
==0 && j
==0)))
2334 sample_size
= sc
->stsz_sample_size
> 0 ? sc
->stsz_sample_size
: sc
->sample_sizes
[current_sample
];
2335 if (sc
->pseudo_stream_id
== -1 ||
2336 sc
->stsc_data
[stsc_index
].id
- 1 == sc
->pseudo_stream_id
) {
2337 AVIndexEntry
*e
= &st
->index_entries
[st
->nb_index_entries
++];
2338 e
->pos
= current_offset
;
2339 e
->timestamp
= current_dts
;
2340 e
->size
= sample_size
;
2341 e
->min_distance
= distance
;
2342 e
->flags
= keyframe
? AVINDEX_KEYFRAME
: 0;
2343 av_dlog(mov
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2344 "size %d, distance %d, keyframe %d\n", st
->index
, current_sample
,
2345 current_offset
, current_dts
, sample_size
, distance
, keyframe
);
2346 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& st
->nb_index_entries
< 100)
2347 ff_rfps_add_frame(mov
->fc
, st
, current_dts
);
2350 current_offset
+= sample_size
;
2351 stream_size
+= sample_size
;
2352 current_dts
+= sc
->stts_data
[stts_index
].duration
;
2356 if (stts_index
+ 1 < sc
->stts_count
&& stts_sample
== sc
->stts_data
[stts_index
].count
) {
2362 if (st
->duration
> 0)
2363 st
->codec
->bit_rate
= stream_size
*8*sc
->time_scale
/st
->duration
;
2365 unsigned chunk_samples
, total
= 0;
2367 // compute total chunk count
2368 for (i
= 0; i
< sc
->stsc_count
; i
++) {
2369 unsigned count
, chunk_count
;
2371 chunk_samples
= sc
->stsc_data
[i
].count
;
2372 if (i
!= sc
->stsc_count
- 1 &&
2373 sc
->samples_per_frame
&& chunk_samples
% sc
->samples_per_frame
) {
2374 av_log(mov
->fc
, AV_LOG_ERROR
, "error unaligned chunk\n");
2378 if (sc
->samples_per_frame
>= 160) { // gsm
2379 count
= chunk_samples
/ sc
->samples_per_frame
;
2380 } else if (sc
->samples_per_frame
> 1) {
2381 unsigned samples
= (1024/sc
->samples_per_frame
)*sc
->samples_per_frame
;
2382 count
= (chunk_samples
+samples
-1) / samples
;
2384 count
= (chunk_samples
+1023) / 1024;
2387 if (i
< sc
->stsc_count
- 1)
2388 chunk_count
= sc
->stsc_data
[i
+1].first
- sc
->stsc_data
[i
].first
;
2390 chunk_count
= sc
->chunk_count
- (sc
->stsc_data
[i
].first
- 1);
2391 total
+= chunk_count
* count
;
2394 av_dlog(mov
->fc
, "chunk count %d\n", total
);
2395 if (total
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2397 if (av_reallocp_array(&st
->index_entries
,
2398 st
->nb_index_entries
+ total
,
2399 sizeof(*st
->index_entries
)) < 0) {
2400 st
->nb_index_entries
= 0;
2403 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ total
) * sizeof(*st
->index_entries
);
2406 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2407 current_offset
= sc
->chunk_offsets
[i
];
2408 if (stsc_index
+ 1 < sc
->stsc_count
&&
2409 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2411 chunk_samples
= sc
->stsc_data
[stsc_index
].count
;
2413 while (chunk_samples
> 0) {
2415 unsigned size
, samples
;
2417 if (sc
->samples_per_frame
>= 160) { // gsm
2418 samples
= sc
->samples_per_frame
;
2419 size
= sc
->bytes_per_frame
;
2421 if (sc
->samples_per_frame
> 1) {
2422 samples
= FFMIN((1024 / sc
->samples_per_frame
)*
2423 sc
->samples_per_frame
, chunk_samples
);
2424 size
= (samples
/ sc
->samples_per_frame
) * sc
->bytes_per_frame
;
2426 samples
= FFMIN(1024, chunk_samples
);
2427 size
= samples
* sc
->sample_size
;
2431 if (st
->nb_index_entries
>= total
) {
2432 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong chunk count %d\n", total
);
2435 e
= &st
->index_entries
[st
->nb_index_entries
++];
2436 e
->pos
= current_offset
;
2437 e
->timestamp
= current_dts
;
2439 e
->min_distance
= 0;
2440 e
->flags
= AVINDEX_KEYFRAME
;
2441 av_dlog(mov
->fc
, "AVIndex stream %d, chunk %d, offset %"PRIx64
", dts %"PRId64
", "
2442 "size %d, duration %d\n", st
->index
, i
, current_offset
, current_dts
,
2445 current_offset
+= size
;
2446 current_dts
+= samples
;
2447 chunk_samples
-= samples
;
2453 static int mov_open_dref(AVIOContext
**pb
, const char *src
, MOVDref
*ref
,
2454 AVIOInterruptCB
*int_cb
, int use_absolute_path
, AVFormatContext
*fc
)
2456 /* try relative path, we do not try the absolute because it can leak information about our
2457 system to an attacker */
2458 if (ref
->nlvl_to
> 0 && ref
->nlvl_from
> 0) {
2459 char filename
[1024];
2460 const char *src_path
;
2463 /* find a source dir */
2464 src_path
= strrchr(src
, '/');
2470 /* find a next level down to target */
2471 for (i
= 0, l
= strlen(ref
->path
) - 1; l
>= 0; l
--)
2472 if (ref
->path
[l
] == '/') {
2473 if (i
== ref
->nlvl_to
- 1)
2479 /* compose filename if next level down to target was found */
2480 if (i
== ref
->nlvl_to
- 1 && src_path
- src
< sizeof(filename
)) {
2481 memcpy(filename
, src
, src_path
- src
);
2482 filename
[src_path
- src
] = 0;
2484 for (i
= 1; i
< ref
->nlvl_from
; i
++)
2485 av_strlcat(filename
, "../", 1024);
2487 av_strlcat(filename
, ref
->path
+ l
+ 1, 1024);
2489 if (!avio_open2(pb
, filename
, AVIO_FLAG_READ
, int_cb
, NULL
))
2492 } else if (use_absolute_path
) {
2493 av_log(fc
, AV_LOG_WARNING
, "Using absolute path on user request, "
2494 "this is a possible security issue\n");
2495 if (!avio_open2(pb
, ref
->path
, AVIO_FLAG_READ
, int_cb
, NULL
))
2499 return AVERROR(ENOENT
);
2502 static void fix_timescale(MOVContext
*c
, MOVStreamContext
*sc
)
2504 if (sc
->time_scale
<= 0) {
2505 av_log(c
->fc
, AV_LOG_WARNING
, "stream %d, timescale not set\n", sc
->ffindex
);
2506 sc
->time_scale
= c
->time_scale
;
2507 if (sc
->time_scale
<= 0)
2512 static int mov_read_trak(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2515 MOVStreamContext
*sc
;
2518 st
= avformat_new_stream(c
->fc
, NULL
);
2519 if (!st
) return AVERROR(ENOMEM
);
2520 st
->id
= c
->fc
->nb_streams
;
2521 sc
= av_mallocz(sizeof(MOVStreamContext
));
2522 if (!sc
) return AVERROR(ENOMEM
);
2525 st
->codec
->codec_type
= AVMEDIA_TYPE_DATA
;
2526 sc
->ffindex
= st
->index
;
2528 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
2532 if (sc
->chunk_count
&& (!sc
->stts_count
|| !sc
->stsc_count
||
2533 (!sc
->sample_size
&& !sc
->sample_count
))) {
2534 av_log(c
->fc
, AV_LOG_ERROR
, "stream %d, missing mandatory atoms, broken header\n",
2539 fix_timescale(c
, sc
);
2541 avpriv_set_pts_info(st
, 64, 1, sc
->time_scale
);
2543 mov_build_index(c
, st
);
2545 if (sc
->dref_id
-1 < sc
->drefs_count
&& sc
->drefs
[sc
->dref_id
-1].path
) {
2546 MOVDref
*dref
= &sc
->drefs
[sc
->dref_id
- 1];
2547 if (mov_open_dref(&sc
->pb
, c
->fc
->filename
, dref
, &c
->fc
->interrupt_callback
,
2548 c
->use_absolute_path
, c
->fc
) < 0)
2549 av_log(c
->fc
, AV_LOG_ERROR
,
2550 "stream %d, error opening alias: path='%s', dir='%s', "
2551 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2552 st
->index
, dref
->path
, dref
->dir
, dref
->filename
,
2553 dref
->volume
, dref
->nlvl_from
, dref
->nlvl_to
);
2556 sc
->pb_is_copied
= 1;
2559 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
) {
2560 if (!st
->sample_aspect_ratio
.num
&&
2561 (st
->codec
->width
!= sc
->width
|| st
->codec
->height
!= sc
->height
)) {
2562 st
->sample_aspect_ratio
= av_d2q(((double)st
->codec
->height
* sc
->width
) /
2563 ((double)st
->codec
->width
* sc
->height
), INT_MAX
);
2566 #if FF_API_R_FRAME_RATE
2567 if (sc
->stts_count
== 1 || (sc
->stts_count
== 2 && sc
->stts_data
[1].count
== 1))
2568 av_reduce(&st
->r_frame_rate
.num
, &st
->r_frame_rate
.den
,
2569 sc
->time_scale
, sc
->stts_data
[0].duration
, INT_MAX
);
2573 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2574 if (!st
->codec
->extradata_size
&& st
->codec
->codec_id
== AV_CODEC_ID_H264
&&
2575 TAG_IS_AVCI(st
->codec
->codec_tag
)) {
2576 ret
= ff_generate_avci_extradata(st
);
2581 switch (st
->codec
->codec_id
) {
2582 #if CONFIG_H261_DECODER
2583 case AV_CODEC_ID_H261
:
2585 #if CONFIG_H263_DECODER
2586 case AV_CODEC_ID_H263
:
2588 #if CONFIG_MPEG4_DECODER
2589 case AV_CODEC_ID_MPEG4
:
2591 st
->codec
->width
= 0; /* let decoder init width/height */
2592 st
->codec
->height
= 0;
2596 /* Do not need those anymore. */
2597 av_freep(&sc
->chunk_offsets
);
2598 av_freep(&sc
->stsc_data
);
2599 av_freep(&sc
->sample_sizes
);
2600 av_freep(&sc
->keyframes
);
2601 av_freep(&sc
->stts_data
);
2602 av_freep(&sc
->stps_data
);
2603 av_freep(&sc
->rap_group
);
2608 static int mov_read_ilst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2611 c
->itunes_metadata
= 1;
2612 ret
= mov_read_default(c
, pb
, atom
);
2613 c
->itunes_metadata
= 0;
2617 static int mov_read_custom_2plus(MOVContext
*c
, AVIOContext
*pb
, int size
)
2619 int64_t end
= avio_tell(pb
) + size
;
2620 uint8_t *key
= NULL
, *val
= NULL
;
2623 MOVStreamContext
*sc
;
2625 if (c
->fc
->nb_streams
< 1)
2627 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2630 for (i
= 0; i
< 2; i
++) {
2634 if (end
- avio_tell(pb
) <= 12)
2637 len
= avio_rb32(pb
);
2638 tag
= avio_rl32(pb
);
2639 avio_skip(pb
, 4); // flags
2641 if (len
< 12 || len
- 12 > end
- avio_tell(pb
))
2645 if (tag
== MKTAG('n', 'a', 'm', 'e'))
2647 else if (tag
== MKTAG('d', 'a', 't', 'a') && len
> 4) {
2654 *p
= av_malloc(len
+ 1);
2657 avio_read(pb
, *p
, len
);
2662 if (strcmp(key
, "iTunSMPB") == 0) {
2663 int priming
, remainder
, samples
;
2664 if(sscanf(val
, "%*X %X %X %X", &priming
, &remainder
, &samples
) == 3){
2665 if(priming
>0 && priming
<16384)
2666 sc
->start_pad
= priming
;
2669 if (strcmp(key
, "cdec") != 0) {
2670 av_dict_set(&c
->fc
->metadata
, key
, val
,
2671 AV_DICT_DONT_STRDUP_KEY
| AV_DICT_DONT_STRDUP_VAL
);
2676 avio_seek(pb
, end
, SEEK_SET
);
2682 static int mov_read_custom(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2684 int64_t end
= avio_tell(pb
) + atom
.size
;
2690 len
= avio_rb32(pb
);
2691 tag
= avio_rl32(pb
);
2693 if (len
> atom
.size
)
2696 if (tag
== MKTAG('m', 'e', 'a', 'n') && len
> 12) {
2697 uint8_t domain
[128];
2700 avio_skip(pb
, 4); // flags
2703 domain_len
= avio_get_str(pb
, len
, domain
, sizeof(domain
));
2704 avio_skip(pb
, len
- domain_len
);
2705 return mov_read_custom_2plus(c
, pb
, end
- avio_tell(pb
));
2709 av_log(c
->fc
, AV_LOG_VERBOSE
,
2710 "Unhandled or malformed custom metadata of size %"PRId64
"\n", atom
.size
);
2714 static int mov_read_meta(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2716 while (atom
.size
> 8) {
2717 uint32_t tag
= avio_rl32(pb
);
2719 if (tag
== MKTAG('h','d','l','r')) {
2720 avio_seek(pb
, -8, SEEK_CUR
);
2722 return mov_read_default(c
, pb
, atom
);
2728 static int mov_read_tkhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2733 int64_t disp_transform
[2];
2734 int display_matrix
[3][3];
2736 MOVStreamContext
*sc
;
2740 if (c
->fc
->nb_streams
< 1)
2742 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2745 version
= avio_r8(pb
);
2746 flags
= avio_rb24(pb
);
2747 st
->disposition
|= (flags
& MOV_TKHD_FLAG_ENABLED
) ? AV_DISPOSITION_DEFAULT
: 0;
2753 avio_rb32(pb
); /* creation time */
2754 avio_rb32(pb
); /* modification time */
2756 st
->id
= (int)avio_rb32(pb
); /* track id (NOT 0 !)*/
2757 avio_rb32(pb
); /* reserved */
2759 /* highlevel (considering edits) duration in movie timebase */
2760 (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
);
2761 avio_rb32(pb
); /* reserved */
2762 avio_rb32(pb
); /* reserved */
2764 avio_rb16(pb
); /* layer */
2765 avio_rb16(pb
); /* alternate group */
2766 avio_rb16(pb
); /* volume */
2767 avio_rb16(pb
); /* reserved */
2769 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2770 // they're kept in fixed point format through all calculations
2771 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2772 // side data, but the scale factor is not needed to calculate aspect ratio
2773 for (i
= 0; i
< 3; i
++) {
2774 display_matrix
[i
][0] = avio_rb32(pb
); // 16.16 fixed point
2775 display_matrix
[i
][1] = avio_rb32(pb
); // 16.16 fixed point
2776 display_matrix
[i
][2] = avio_rb32(pb
); // 2.30 fixed point
2779 width
= avio_rb32(pb
); // 16.16 fixed point track width
2780 height
= avio_rb32(pb
); // 16.16 fixed point track height
2781 sc
->width
= width
>> 16;
2782 sc
->height
= height
>> 16;
2784 // save the matrix and add rotate metadata when it is not the default
2786 if (display_matrix
[0][0] != (1 << 16) ||
2787 display_matrix
[1][1] != (1 << 16) ||
2788 display_matrix
[2][2] != (1 << 30) ||
2789 display_matrix
[0][1] || display_matrix
[0][2] ||
2790 display_matrix
[1][0] || display_matrix
[1][2] ||
2791 display_matrix
[2][0] || display_matrix
[2][1]) {
2795 av_freep(&sc
->display_matrix
);
2796 sc
->display_matrix
= av_malloc(sizeof(int32_t) * 9);
2797 if (!sc
->display_matrix
)
2798 return AVERROR(ENOMEM
);
2800 for (i
= 0; i
< 3; i
++)
2801 for (j
= 0; j
< 3; j
++)
2802 sc
->display_matrix
[i
* 3 + j
] = display_matrix
[j
][i
];
2804 rotate
= av_display_rotation_get(sc
->display_matrix
);
2805 if (!isnan(rotate
)) {
2806 char rotate_buf
[64];
2808 if (rotate
< 0) // for backward compatibility
2810 snprintf(rotate_buf
, sizeof(rotate_buf
), "%g", rotate
);
2811 av_dict_set(&st
->metadata
, "rotate", rotate_buf
, 0);
2815 // transform the display width/height according to the matrix
2816 // skip this if the display matrix is the default identity matrix
2817 // or if it is rotating the picture, ex iPhone 3GS
2818 // to keep the same scale, use [width height 1<<16]
2819 if (width
&& height
&&
2820 ((display_matrix
[0][0] != 65536 ||
2821 display_matrix
[1][1] != 65536) &&
2822 !display_matrix
[0][1] &&
2823 !display_matrix
[1][0] &&
2824 !display_matrix
[2][0] && !display_matrix
[2][1])) {
2825 for (i
= 0; i
< 2; i
++)
2827 (int64_t) width
* display_matrix
[0][i
] +
2828 (int64_t) height
* display_matrix
[1][i
] +
2829 ((int64_t) display_matrix
[2][i
] << 16);
2831 //sample aspect ratio is new width/height divided by old width/height
2832 st
->sample_aspect_ratio
= av_d2q(
2833 ((double) disp_transform
[0] * height
) /
2834 ((double) disp_transform
[1] * width
), INT_MAX
);
2839 static int mov_read_tfhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2841 MOVFragment
*frag
= &c
->fragment
;
2842 MOVTrackExt
*trex
= NULL
;
2843 MOVFragmentIndex
* index
= NULL
;
2844 int flags
, track_id
, i
;
2846 avio_r8(pb
); /* version */
2847 flags
= avio_rb24(pb
);
2849 track_id
= avio_rb32(pb
);
2851 return AVERROR_INVALIDDATA
;
2852 frag
->track_id
= track_id
;
2853 for (i
= 0; i
< c
->trex_count
; i
++)
2854 if (c
->trex_data
[i
].track_id
== frag
->track_id
) {
2855 trex
= &c
->trex_data
[i
];
2859 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding trex\n");
2860 return AVERROR_INVALIDDATA
;
2862 for (i
= 0; i
< c
->fragment_index_count
; i
++) {
2863 MOVFragmentIndex
* candidate
= c
->fragment_index_data
[i
];
2864 if (candidate
->track_id
== frag
->track_id
) {
2865 av_log(c
->fc
, AV_LOG_DEBUG
,
2866 "found fragment index for track %u\n", frag
->track_id
);
2872 frag
->base_data_offset
= flags
& MOV_TFHD_BASE_DATA_OFFSET
?
2873 avio_rb64(pb
) : flags
& MOV_TFHD_DEFAULT_BASE_IS_MOOF
?
2874 frag
->moof_offset
: frag
->implicit_offset
;
2875 frag
->stsd_id
= flags
& MOV_TFHD_STSD_ID
? avio_rb32(pb
) : trex
->stsd_id
;
2877 frag
->duration
= flags
& MOV_TFHD_DEFAULT_DURATION
?
2878 avio_rb32(pb
) : trex
->duration
;
2879 frag
->size
= flags
& MOV_TFHD_DEFAULT_SIZE
?
2880 avio_rb32(pb
) : trex
->size
;
2881 frag
->flags
= flags
& MOV_TFHD_DEFAULT_FLAGS
?
2882 avio_rb32(pb
) : trex
->flags
;
2883 frag
->time
= AV_NOPTS_VALUE
;
2886 for (i
= index
->current_item
; i
< index
->item_count
; i
++) {
2887 if (frag
->implicit_offset
== index
->items
[i
].moof_offset
) {
2888 av_log(c
->fc
, AV_LOG_DEBUG
, "found fragment index entry "
2889 "for track %u and moof_offset %"PRId64
"\n",
2890 frag
->track_id
, index
->items
[i
].moof_offset
);
2891 frag
->time
= index
->items
[i
].time
;
2892 index
->current_item
= i
+ 1;
2897 av_log(c
->fc
, AV_LOG_WARNING
, "track %u has a fragment index "
2898 "but it doesn't have an (in-order) entry for moof_offset "
2899 "%"PRId64
"\n", frag
->track_id
, frag
->implicit_offset
);
2902 av_dlog(c
->fc
, "frag flags 0x%x\n", frag
->flags
);
2906 static int mov_read_chap(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2908 c
->chapter_track
= avio_rb32(pb
);
2912 static int mov_read_trex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2917 if ((uint64_t)c
->trex_count
+1 >= UINT_MAX
/ sizeof(*c
->trex_data
))
2918 return AVERROR_INVALIDDATA
;
2919 if ((err
= av_reallocp_array(&c
->trex_data
, c
->trex_count
+ 1,
2920 sizeof(*c
->trex_data
))) < 0) {
2925 c
->fc
->duration
= AV_NOPTS_VALUE
; // the duration from mvhd is not representing the whole file when fragments are used.
2927 trex
= &c
->trex_data
[c
->trex_count
++];
2928 avio_r8(pb
); /* version */
2929 avio_rb24(pb
); /* flags */
2930 trex
->track_id
= avio_rb32(pb
);
2931 trex
->stsd_id
= avio_rb32(pb
);
2932 trex
->duration
= avio_rb32(pb
);
2933 trex
->size
= avio_rb32(pb
);
2934 trex
->flags
= avio_rb32(pb
);
2938 static int mov_read_tfdt(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2940 MOVFragment
*frag
= &c
->fragment
;
2941 AVStream
*st
= NULL
;
2942 MOVStreamContext
*sc
;
2945 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2946 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2947 st
= c
->fc
->streams
[i
];
2952 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2953 return AVERROR_INVALIDDATA
;
2956 if (sc
->pseudo_stream_id
+ 1 != frag
->stsd_id
)
2958 version
= avio_r8(pb
);
2959 avio_rb24(pb
); /* flags */
2961 sc
->track_end
= avio_rb64(pb
);
2963 sc
->track_end
= avio_rb32(pb
);
2968 static int mov_read_trun(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2970 MOVFragment
*frag
= &c
->fragment
;
2971 AVStream
*st
= NULL
;
2972 MOVStreamContext
*sc
;
2976 int data_offset
= 0;
2977 unsigned entries
, first_sample_flags
= frag
->flags
;
2978 int flags
, distance
, i
, found_keyframe
= 0, err
;
2980 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2981 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2982 st
= c
->fc
->streams
[i
];
2987 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2988 return AVERROR_INVALIDDATA
;
2991 if (sc
->pseudo_stream_id
+1 != frag
->stsd_id
&& sc
->pseudo_stream_id
!= -1)
2993 avio_r8(pb
); /* version */
2994 flags
= avio_rb24(pb
);
2995 entries
= avio_rb32(pb
);
2996 av_dlog(c
->fc
, "flags 0x%x entries %d\n", flags
, entries
);
2998 /* Always assume the presence of composition time offsets.
2999 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3000 * 1) in the initial movie, there are no samples.
3001 * 2) in the first movie fragment, there is only one sample without composition time offset.
3002 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3003 if (!sc
->ctts_count
&& sc
->sample_count
)
3005 /* Complement ctts table if moov atom doesn't have ctts atom. */
3006 ctts_data
= av_realloc(NULL
, sizeof(*sc
->ctts_data
));
3008 return AVERROR(ENOMEM
);
3009 sc
->ctts_data
= ctts_data
;
3010 sc
->ctts_data
[sc
->ctts_count
].count
= sc
->sample_count
;
3011 sc
->ctts_data
[sc
->ctts_count
].duration
= 0;
3014 if ((uint64_t)entries
+sc
->ctts_count
>= UINT_MAX
/sizeof(*sc
->ctts_data
))
3015 return AVERROR_INVALIDDATA
;
3016 if ((err
= av_reallocp_array(&sc
->ctts_data
, entries
+ sc
->ctts_count
,
3017 sizeof(*sc
->ctts_data
))) < 0) {
3021 if (flags
& MOV_TRUN_DATA_OFFSET
) data_offset
= avio_rb32(pb
);
3022 if (flags
& MOV_TRUN_FIRST_SAMPLE_FLAGS
) first_sample_flags
= avio_rb32(pb
);
3023 dts
= sc
->track_end
- sc
->time_offset
;
3024 offset
= frag
->base_data_offset
+ data_offset
;
3026 av_dlog(c
->fc
, "first sample flags 0x%x\n", first_sample_flags
);
3027 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
3028 unsigned sample_size
= frag
->size
;
3029 int sample_flags
= i
? frag
->flags
: first_sample_flags
;
3030 unsigned sample_duration
= frag
->duration
;
3033 if (flags
& MOV_TRUN_SAMPLE_DURATION
) sample_duration
= avio_rb32(pb
);
3034 if (flags
& MOV_TRUN_SAMPLE_SIZE
) sample_size
= avio_rb32(pb
);
3035 if (flags
& MOV_TRUN_SAMPLE_FLAGS
) sample_flags
= avio_rb32(pb
);
3036 sc
->ctts_data
[sc
->ctts_count
].count
= 1;
3037 sc
->ctts_data
[sc
->ctts_count
].duration
= (flags
& MOV_TRUN_SAMPLE_CTS
) ?
3039 mov_update_dts_shift(sc
, sc
->ctts_data
[sc
->ctts_count
].duration
);
3040 if (frag
->time
!= AV_NOPTS_VALUE
) {
3041 if (c
->use_mfra_for
== FF_MOV_FLAG_MFRA_PTS
) {
3042 int64_t pts
= frag
->time
;
3043 av_log(c
->fc
, AV_LOG_DEBUG
, "found frag time %"PRId64
3044 " sc->dts_shift %d ctts.duration %d"
3045 " sc->time_offset %"PRId64
" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts
,
3046 sc
->dts_shift
, sc
->ctts_data
[sc
->ctts_count
].duration
,
3047 sc
->time_offset
, flags
& MOV_TRUN_SAMPLE_CTS
);
3048 dts
= pts
- sc
->dts_shift
;
3049 if (flags
& MOV_TRUN_SAMPLE_CTS
) {
3050 dts
-= sc
->ctts_data
[sc
->ctts_count
].duration
;
3052 dts
-= sc
->time_offset
;
3054 av_log(c
->fc
, AV_LOG_DEBUG
, "calculated into dts %"PRId64
"\n", dts
);
3057 av_log(c
->fc
, AV_LOG_DEBUG
, "found frag time %"PRId64
3058 ", using it for dts\n", dts
);
3060 frag
->time
= AV_NOPTS_VALUE
;
3063 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
)
3065 else if (!found_keyframe
)
3066 keyframe
= found_keyframe
=
3067 !(sample_flags
& (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
|
3068 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
));
3071 av_add_index_entry(st
, offset
, dts
, sample_size
, distance
,
3072 keyframe
? AVINDEX_KEYFRAME
: 0);
3073 av_dlog(c
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
3074 "size %d, distance %d, keyframe %d\n", st
->index
, sc
->sample_count
+i
,
3075 offset
, dts
, sample_size
, distance
, keyframe
);
3077 dts
+= sample_duration
;
3078 offset
+= sample_size
;
3079 sc
->data_size
+= sample_size
;
3080 sc
->duration_for_fps
+= sample_duration
;
3081 sc
->nb_frames_for_fps
++;
3084 if (pb
->eof_reached
)
3087 frag
->implicit_offset
= offset
;
3088 st
->duration
= sc
->track_end
= dts
+ sc
->time_offset
;
3092 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3093 /* like the files created with Adobe Premiere 5.0, for samples see */
3094 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3095 static int mov_read_wide(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3100 return 0; /* continue */
3101 if (avio_rb32(pb
) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3102 avio_skip(pb
, atom
.size
- 4);
3105 atom
.type
= avio_rl32(pb
);
3107 if (atom
.type
!= MKTAG('m','d','a','t')) {
3108 avio_skip(pb
, atom
.size
);
3111 err
= mov_read_mdat(c
, pb
, atom
);
3115 static int mov_read_cmov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3120 uint8_t *moov_data
; /* uncompressed data */
3121 long cmov_len
, moov_len
;
3124 avio_rb32(pb
); /* dcom atom */
3125 if (avio_rl32(pb
) != MKTAG('d','c','o','m'))
3126 return AVERROR_INVALIDDATA
;
3127 if (avio_rl32(pb
) != MKTAG('z','l','i','b')) {
3128 av_log(c
->fc
, AV_LOG_ERROR
, "unknown compression for cmov atom !\n");
3129 return AVERROR_INVALIDDATA
;
3131 avio_rb32(pb
); /* cmvd atom */
3132 if (avio_rl32(pb
) != MKTAG('c','m','v','d'))
3133 return AVERROR_INVALIDDATA
;
3134 moov_len
= avio_rb32(pb
); /* uncompressed size */
3135 cmov_len
= atom
.size
- 6 * 4;
3137 cmov_data
= av_malloc(cmov_len
);
3139 return AVERROR(ENOMEM
);
3140 moov_data
= av_malloc(moov_len
);
3143 return AVERROR(ENOMEM
);
3145 avio_read(pb
, cmov_data
, cmov_len
);
3146 if (uncompress (moov_data
, (uLongf
*) &moov_len
, (const Bytef
*)cmov_data
, cmov_len
) != Z_OK
)
3147 goto free_and_return
;
3148 if (ffio_init_context(&ctx
, moov_data
, moov_len
, 0, NULL
, NULL
, NULL
, NULL
) != 0)
3149 goto free_and_return
;
3150 atom
.type
= MKTAG('m','o','o','v');
3151 atom
.size
= moov_len
;
3152 ret
= mov_read_default(c
, &ctx
, atom
);
3158 av_log(c
->fc
, AV_LOG_ERROR
, "this file requires zlib support compiled in\n");
3159 return AVERROR(ENOSYS
);
3163 /* edit list atom */
3164 static int mov_read_elst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3166 MOVStreamContext
*sc
;
3167 int i
, edit_count
, version
, edit_start_index
= 0;
3168 int unsupported
= 0;
3170 if (c
->fc
->nb_streams
< 1 || c
->ignore_editlist
)
3172 sc
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->priv_data
;
3174 version
= avio_r8(pb
); /* version */
3175 avio_rb24(pb
); /* flags */
3176 edit_count
= avio_rb32(pb
); /* entries */
3178 if ((uint64_t)edit_count
*12+8 > atom
.size
)
3179 return AVERROR_INVALIDDATA
;
3181 av_dlog(c
->fc
, "track[%i].edit_count = %i\n", c
->fc
->nb_streams
-1, edit_count
);
3182 for (i
=0; i
<edit_count
; i
++){
3187 duration
= avio_rb64(pb
);
3188 time
= avio_rb64(pb
);
3190 duration
= avio_rb32(pb
); /* segment duration */
3191 time
= (int32_t)avio_rb32(pb
); /* media time */
3193 rate
= avio_rb32(pb
);
3194 if (i
== 0 && time
== -1) {
3195 sc
->empty_duration
= duration
;
3196 edit_start_index
= 1;
3197 } else if (i
== edit_start_index
&& time
>= 0)
3198 sc
->start_time
= time
;
3202 av_dlog(c
->fc
, "duration=%"PRId64
" time=%"PRId64
" rate=%f\n",
3203 duration
, time
, rate
/ 65536.0);
3207 av_log(c
->fc
, AV_LOG_WARNING
, "multiple edit list entries, "
3208 "a/v desync might occur, patch welcome\n");
3213 static int mov_read_tmcd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3215 MOVStreamContext
*sc
;
3217 if (c
->fc
->nb_streams
< 1)
3218 return AVERROR_INVALIDDATA
;
3219 sc
= c
->fc
->streams
[c
->fc
->nb_streams
- 1]->priv_data
;
3220 sc
->timecode_track
= avio_rb32(pb
);
3224 static int mov_read_uuid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3228 static const uint8_t uuid_isml_manifest
[] = {
3229 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3230 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3233 if (atom
.size
< sizeof(uuid
) || atom
.size
== INT64_MAX
)
3234 return AVERROR_INVALIDDATA
;
3236 ret
= avio_read(pb
, uuid
, sizeof(uuid
));
3239 } else if (ret
!= sizeof(uuid
)) {
3240 return AVERROR_INVALIDDATA
;
3242 if (!memcmp(uuid
, uuid_isml_manifest
, sizeof(uuid
))) {
3243 uint8_t *buffer
, *ptr
;
3245 size_t len
= atom
.size
- sizeof(uuid
);
3248 return AVERROR_INVALIDDATA
;
3250 ret
= avio_skip(pb
, 4); // zeroes
3253 buffer
= av_mallocz(len
+ 1);
3255 return AVERROR(ENOMEM
);
3257 ret
= avio_read(pb
, buffer
, len
);
3261 } else if (ret
!= len
) {
3263 return AVERROR_INVALIDDATA
;
3267 while ((ptr
= av_stristr(ptr
, "systemBitrate=\""))) {
3268 ptr
+= sizeof("systemBitrate=\"") - 1;
3269 c
->bitrates_count
++;
3270 c
->bitrates
= av_realloc_f(c
->bitrates
, c
->bitrates_count
, sizeof(*c
->bitrates
));
3272 c
->bitrates_count
= 0;
3274 return AVERROR(ENOMEM
);
3277 ret
= strtol(ptr
, &endptr
, 10);
3278 if (ret
< 0 || errno
|| *endptr
!= '"') {
3279 c
->bitrates
[c
->bitrates_count
- 1] = 0;
3281 c
->bitrates
[c
->bitrates_count
- 1] = ret
;
3290 static int mov_read_free(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3293 uint8_t content
[16];
3298 ret
= avio_read(pb
, content
, FFMIN(sizeof(content
), atom
.size
));
3304 && !memcmp(content
, "Anevia\x1A\x1A", 8)
3305 && c
->use_mfra_for
== FF_MOV_FLAG_MFRA_AUTO
) {
3306 c
->use_mfra_for
= FF_MOV_FLAG_MFRA_PTS
;
3312 static const MOVParseTableEntry mov_default_parse_table
[] = {
3313 { MKTAG('A','C','L','R'), mov_read_avid
},
3314 { MKTAG('A','P','R','G'), mov_read_avid
},
3315 { MKTAG('A','A','L','P'), mov_read_avid
},
3316 { MKTAG('A','R','E','S'), mov_read_ares
},
3317 { MKTAG('a','v','s','s'), mov_read_avss
},
3318 { MKTAG('c','h','p','l'), mov_read_chpl
},
3319 { MKTAG('c','o','6','4'), mov_read_stco
},
3320 { MKTAG('c','o','l','r'), mov_read_colr
},
3321 { MKTAG('c','t','t','s'), mov_read_ctts
}, /* composition time to sample */
3322 { MKTAG('d','i','n','f'), mov_read_default
},
3323 { MKTAG('d','r','e','f'), mov_read_dref
},
3324 { MKTAG('e','d','t','s'), mov_read_default
},
3325 { MKTAG('e','l','s','t'), mov_read_elst
},
3326 { MKTAG('e','n','d','a'), mov_read_enda
},
3327 { MKTAG('f','i','e','l'), mov_read_fiel
},
3328 { MKTAG('f','t','y','p'), mov_read_ftyp
},
3329 { MKTAG('g','l','b','l'), mov_read_glbl
},
3330 { MKTAG('h','d','l','r'), mov_read_hdlr
},
3331 { MKTAG('i','l','s','t'), mov_read_ilst
},
3332 { MKTAG('j','p','2','h'), mov_read_jp2h
},
3333 { MKTAG('m','d','a','t'), mov_read_mdat
},
3334 { MKTAG('m','d','h','d'), mov_read_mdhd
},
3335 { MKTAG('m','d','i','a'), mov_read_default
},
3336 { MKTAG('m','e','t','a'), mov_read_meta
},
3337 { MKTAG('m','i','n','f'), mov_read_default
},
3338 { MKTAG('m','o','o','f'), mov_read_moof
},
3339 { MKTAG('m','o','o','v'), mov_read_moov
},
3340 { MKTAG('m','v','e','x'), mov_read_default
},
3341 { MKTAG('m','v','h','d'), mov_read_mvhd
},
3342 { MKTAG('S','M','I',' '), mov_read_svq3
},
3343 { MKTAG('a','l','a','c'), mov_read_alac
}, /* alac specific atom */
3344 { MKTAG('a','v','c','C'), mov_read_glbl
},
3345 { MKTAG('p','a','s','p'), mov_read_pasp
},
3346 { MKTAG('s','t','b','l'), mov_read_default
},
3347 { MKTAG('s','t','c','o'), mov_read_stco
},
3348 { MKTAG('s','t','p','s'), mov_read_stps
},
3349 { MKTAG('s','t','r','f'), mov_read_strf
},
3350 { MKTAG('s','t','s','c'), mov_read_stsc
},
3351 { MKTAG('s','t','s','d'), mov_read_stsd
}, /* sample description */
3352 { MKTAG('s','t','s','s'), mov_read_stss
}, /* sync sample */
3353 { MKTAG('s','t','s','z'), mov_read_stsz
}, /* sample size */
3354 { MKTAG('s','t','t','s'), mov_read_stts
},
3355 { MKTAG('s','t','z','2'), mov_read_stsz
}, /* compact sample size */
3356 { MKTAG('t','k','h','d'), mov_read_tkhd
}, /* track header */
3357 { MKTAG('t','f','d','t'), mov_read_tfdt
},
3358 { MKTAG('t','f','h','d'), mov_read_tfhd
}, /* track fragment header */
3359 { MKTAG('t','r','a','k'), mov_read_trak
},
3360 { MKTAG('t','r','a','f'), mov_read_default
},
3361 { MKTAG('t','r','e','f'), mov_read_default
},
3362 { MKTAG('t','m','c','d'), mov_read_tmcd
},
3363 { MKTAG('c','h','a','p'), mov_read_chap
},
3364 { MKTAG('t','r','e','x'), mov_read_trex
},
3365 { MKTAG('t','r','u','n'), mov_read_trun
},
3366 { MKTAG('u','d','t','a'), mov_read_default
},
3367 { MKTAG('w','a','v','e'), mov_read_wave
},
3368 { MKTAG('e','s','d','s'), mov_read_esds
},
3369 { MKTAG('d','a','c','3'), mov_read_dac3
}, /* AC-3 info */
3370 { MKTAG('d','e','c','3'), mov_read_dec3
}, /* EAC-3 info */
3371 { MKTAG('w','i','d','e'), mov_read_wide
}, /* place holder */
3372 { MKTAG('w','f','e','x'), mov_read_wfex
},
3373 { MKTAG('c','m','o','v'), mov_read_cmov
},
3374 { MKTAG('c','h','a','n'), mov_read_chan
}, /* channel layout */
3375 { MKTAG('d','v','c','1'), mov_read_dvc1
},
3376 { MKTAG('s','b','g','p'), mov_read_sbgp
},
3377 { MKTAG('h','v','c','C'), mov_read_glbl
},
3378 { MKTAG('u','u','i','d'), mov_read_uuid
},
3379 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216
},
3380 { MKTAG('f','r','e','e'), mov_read_free
},
3381 { MKTAG('-','-','-','-'), mov_read_custom
},
3385 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3387 int64_t total_size
= 0;
3391 if (c
->atom_depth
> 10) {
3392 av_log(c
->fc
, AV_LOG_ERROR
, "Atoms too deeply nested\n");
3393 return AVERROR_INVALIDDATA
;
3398 atom
.size
= INT64_MAX
;
3399 while (total_size
+ 8 <= atom
.size
&& !avio_feof(pb
)) {
3400 int (*parse
)(MOVContext
*, AVIOContext
*, MOVAtom
) = NULL
;
3403 if (atom
.size
>= 8) {
3404 a
.size
= avio_rb32(pb
);
3405 a
.type
= avio_rl32(pb
);
3406 if (a
.type
== MKTAG('f','r','e','e') &&
3410 uint32_t *type
= (uint32_t *)buf
+ 1;
3411 avio_read(pb
, buf
, 8);
3412 avio_seek(pb
, -8, SEEK_CUR
);
3413 if (*type
== MKTAG('m','v','h','d') ||
3414 *type
== MKTAG('c','m','o','v')) {
3415 av_log(c
->fc
, AV_LOG_ERROR
, "Detected moov in a free atom.\n");
3416 a
.type
= MKTAG('m','o','o','v');
3419 if (atom
.type
!= MKTAG('r','o','o','t') &&
3420 atom
.type
!= MKTAG('m','o','o','v'))
3422 if (a
.type
== MKTAG('t','r','a','k') || a
.type
== MKTAG('m','d','a','t'))
3424 av_log(c
->fc
, AV_LOG_ERROR
, "Broken file, trak/mdat not at top-level\n");
3431 if (a
.size
== 1) { /* 64 bit extended size */
3432 a
.size
= avio_rb64(pb
) - 8;
3436 av_dlog(c
->fc
, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64
" %"PRId64
" %"PRId64
"\n",
3437 a
.type
, (char*)&a
.type
, (char*)&atom
.type
, a
.size
, total_size
, atom
.size
);
3439 a
.size
= atom
.size
- total_size
+ 8;
3444 a
.size
= FFMIN(a
.size
, atom
.size
- total_size
);
3446 for (i
= 0; mov_default_parse_table
[i
].type
; i
++)
3447 if (mov_default_parse_table
[i
].type
== a
.type
) {
3448 parse
= mov_default_parse_table
[i
].parse
;
3452 // container is user data
3453 if (!parse
&& (atom
.type
== MKTAG('u','d','t','a') ||
3454 atom
.type
== MKTAG('i','l','s','t')))
3455 parse
= mov_read_udta_string
;
3457 if (!parse
) { /* skip leaf atoms data */
3458 avio_skip(pb
, a
.size
);
3460 int64_t start_pos
= avio_tell(pb
);
3462 int err
= parse(c
, pb
, a
);
3467 if (c
->found_moov
&& c
->found_mdat
&&
3468 ((!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
) ||
3469 start_pos
+ a
.size
== avio_size(pb
))) {
3470 if (!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
)
3471 c
->next_root_atom
= start_pos
+ a
.size
;
3475 left
= a
.size
- avio_tell(pb
) + start_pos
;
3476 if (left
> 0) /* skip garbage at atom end */
3477 avio_skip(pb
, left
);
3478 else if (left
< 0) {
3479 av_log(c
->fc
, AV_LOG_WARNING
,
3480 "overread end of atom '%.4s' by %"PRId64
" bytes\n",
3481 (char*)&a
.type
, -left
);
3482 avio_seek(pb
, left
, SEEK_CUR
);
3486 total_size
+= a
.size
;
3489 if (total_size
< atom
.size
&& atom
.size
< 0x7ffff)
3490 avio_skip(pb
, atom
.size
- total_size
);
3496 static int mov_probe(AVProbeData
*p
)
3501 int moov_offset
= -1;
3503 /* check file header */
3506 /* ignore invalid offset */
3507 if ((offset
+ 8) > (unsigned int)p
->buf_size
)
3509 tag
= AV_RL32(p
->buf
+ offset
+ 4);
3511 /* check for obvious tags */
3512 case MKTAG('m','o','o','v'):
3513 moov_offset
= offset
+ 4;
3514 case MKTAG('m','d','a','t'):
3515 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3516 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3517 case MKTAG('f','t','y','p'):
3518 if (AV_RB32(p
->buf
+offset
) < 8 &&
3519 (AV_RB32(p
->buf
+offset
) != 1 ||
3520 offset
+ 12 > (unsigned int)p
->buf_size
||
3521 AV_RB64(p
->buf
+offset
+ 8) == 0)) {
3522 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3523 } else if (tag
== MKTAG('f','t','y','p') &&
3524 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('j','p','2',' ')) {
3525 score
= FFMAX(score
, 5);
3527 score
= AVPROBE_SCORE_MAX
;
3529 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3531 /* those are more common words, so rate then a bit less */
3532 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3533 case MKTAG('w','i','d','e'):
3534 case MKTAG('f','r','e','e'):
3535 case MKTAG('j','u','n','k'):
3536 case MKTAG('p','i','c','t'):
3537 score
= FFMAX(score
, AVPROBE_SCORE_MAX
- 5);
3538 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3540 case MKTAG(0x82,0x82,0x7f,0x7d):
3541 case MKTAG('s','k','i','p'):
3542 case MKTAG('u','u','i','d'):
3543 case MKTAG('p','r','f','l'):
3544 /* if we only find those cause probedata is too small at least rate them */
3545 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3546 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3549 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3552 if(score
> AVPROBE_SCORE_MAX
- 50 && moov_offset
!= -1) {
3553 /* moov atom in the header - we should make sure that this is not a
3554 * MOV-packed MPEG-PS */
3555 offset
= moov_offset
;
3557 while(offset
< (p
->buf_size
- 16)){ /* Sufficient space */
3558 /* We found an actual hdlr atom */
3559 if(AV_RL32(p
->buf
+ offset
) == MKTAG('h','d','l','r') &&
3560 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('m','h','l','r') &&
3561 AV_RL32(p
->buf
+ offset
+ 12) == MKTAG('M','P','E','G')){
3562 av_log(NULL
, AV_LOG_WARNING
, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3563 /* We found a media handler reference atom describing an
3564 * MPEG-PS-in-MOV, return a
3565 * low score to force expanding the probe window until
3566 * mpegps_probe finds what it needs */
3577 // must be done after parsing all trak because there's no order requirement
3578 static void mov_read_chapters(AVFormatContext
*s
)
3580 MOVContext
*mov
= s
->priv_data
;
3581 AVStream
*st
= NULL
;
3582 MOVStreamContext
*sc
;
3586 for (i
= 0; i
< s
->nb_streams
; i
++)
3587 if (s
->streams
[i
]->id
== mov
->chapter_track
) {
3592 av_log(s
, AV_LOG_ERROR
, "Referenced QT chapter track not found\n");
3596 st
->discard
= AVDISCARD_ALL
;
3598 cur_pos
= avio_tell(sc
->pb
);
3600 for (i
= 0; i
< st
->nb_index_entries
; i
++) {
3601 AVIndexEntry
*sample
= &st
->index_entries
[i
];
3602 int64_t end
= i
+1 < st
->nb_index_entries
? st
->index_entries
[i
+1].timestamp
: st
->duration
;
3607 if (end
< sample
->timestamp
) {
3608 av_log(s
, AV_LOG_WARNING
, "ignoring stream duration which is shorter than chapters\n");
3609 end
= AV_NOPTS_VALUE
;
3612 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
3613 av_log(s
, AV_LOG_ERROR
, "Chapter %d not found in file\n", i
);
3617 // the first two bytes are the length of the title
3618 len
= avio_rb16(sc
->pb
);
3619 if (len
> sample
->size
-2)
3621 title_len
= 2*len
+ 1;
3622 if (!(title
= av_mallocz(title_len
)))
3625 // The samples could theoretically be in any encoding if there's an encd
3626 // atom following, but in practice are only utf-8 or utf-16, distinguished
3627 // instead by the presence of a BOM
3631 ch
= avio_rb16(sc
->pb
);
3633 avio_get_str16be(sc
->pb
, len
, title
, title_len
);
3634 else if (ch
== 0xfffe)
3635 avio_get_str16le(sc
->pb
, len
, title
, title_len
);
3638 if (len
== 1 || len
== 2)
3641 avio_get_str(sc
->pb
, INT_MAX
, title
+ 2, len
- 1);
3645 avpriv_new_chapter(s
, i
, st
->time_base
, sample
->timestamp
, end
, title
);
3649 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3652 static int parse_timecode_in_framenum_format(AVFormatContext
*s
, AVStream
*st
,
3653 uint32_t value
, int flags
)
3656 char buf
[AV_TIMECODE_STR_SIZE
];
3657 AVRational rate
= {st
->codec
->time_base
.den
,
3658 st
->codec
->time_base
.num
};
3659 int ret
= av_timecode_init(&tc
, rate
, flags
, 0, s
);
3662 av_dict_set(&st
->metadata
, "timecode",
3663 av_timecode_make_string(&tc
, buf
, value
), 0);
3667 static int mov_read_timecode_track(AVFormatContext
*s
, AVStream
*st
)
3669 MOVStreamContext
*sc
= st
->priv_data
;
3671 int64_t cur_pos
= avio_tell(sc
->pb
);
3674 if (!st
->nb_index_entries
)
3677 avio_seek(sc
->pb
, st
->index_entries
->pos
, SEEK_SET
);
3678 value
= avio_rb32(s
->pb
);
3680 if (sc
->tmcd_flags
& 0x0001) flags
|= AV_TIMECODE_FLAG_DROPFRAME
;
3681 if (sc
->tmcd_flags
& 0x0002) flags
|= AV_TIMECODE_FLAG_24HOURSMAX
;
3682 if (sc
->tmcd_flags
& 0x0004) flags
|= AV_TIMECODE_FLAG_ALLOWNEGATIVE
;
3684 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3685 * not the case) and thus assume "frame number format" instead of QT one.
3686 * No sample with tmcd track can be found with a QT timecode at the moment,
3687 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3689 parse_timecode_in_framenum_format(s
, st
, value
, flags
);
3691 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3695 static int mov_read_close(AVFormatContext
*s
)
3697 MOVContext
*mov
= s
->priv_data
;
3700 for (i
= 0; i
< s
->nb_streams
; i
++) {
3701 AVStream
*st
= s
->streams
[i
];
3702 MOVStreamContext
*sc
= st
->priv_data
;
3704 av_freep(&sc
->ctts_data
);
3705 for (j
= 0; j
< sc
->drefs_count
; j
++) {
3706 av_freep(&sc
->drefs
[j
].path
);
3707 av_freep(&sc
->drefs
[j
].dir
);
3709 av_freep(&sc
->drefs
);
3711 sc
->drefs_count
= 0;
3713 if (!sc
->pb_is_copied
)
3717 av_freep(&sc
->chunk_offsets
);
3718 av_freep(&sc
->stsc_data
);
3719 av_freep(&sc
->sample_sizes
);
3720 av_freep(&sc
->keyframes
);
3721 av_freep(&sc
->stts_data
);
3722 av_freep(&sc
->stps_data
);
3723 av_freep(&sc
->rap_group
);
3724 av_freep(&sc
->display_matrix
);
3727 if (mov
->dv_demux
) {
3728 avformat_free_context(mov
->dv_fctx
);
3729 mov
->dv_fctx
= NULL
;
3732 av_freep(&mov
->trex_data
);
3733 av_freep(&mov
->bitrates
);
3735 for (i
= 0; i
< mov
->fragment_index_count
; i
++) {
3736 MOVFragmentIndex
* index
= mov
->fragment_index_data
[i
];
3737 av_freep(&index
->items
);
3738 av_freep(&mov
->fragment_index_data
[i
]);
3740 av_freep(&mov
->fragment_index_data
);
3745 static int tmcd_is_referenced(AVFormatContext
*s
, int tmcd_id
)
3749 for (i
= 0; i
< s
->nb_streams
; i
++) {
3750 AVStream
*st
= s
->streams
[i
];
3751 MOVStreamContext
*sc
= st
->priv_data
;
3753 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&&
3754 sc
->timecode_track
== tmcd_id
)
3760 /* look for a tmcd track not referenced by any video track, and export it globally */
3761 static void export_orphan_timecode(AVFormatContext
*s
)
3765 for (i
= 0; i
< s
->nb_streams
; i
++) {
3766 AVStream
*st
= s
->streams
[i
];
3768 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d') &&
3769 !tmcd_is_referenced(s
, i
+ 1)) {
3770 AVDictionaryEntry
*tcr
= av_dict_get(st
->metadata
, "timecode", NULL
, 0);
3772 av_dict_set(&s
->metadata
, "timecode", tcr
->value
, 0);
3779 static int read_tfra(MOVContext
*mov
, AVIOContext
*f
)
3781 MOVFragmentIndex
* index
= NULL
;
3782 int version
, fieldlength
, i
, j
, err
;
3783 int64_t pos
= avio_tell(f
);
3784 uint32_t size
= avio_rb32(f
);
3785 if (avio_rb32(f
) != MKBETAG('t', 'f', 'r', 'a')) {
3788 av_log(mov
->fc
, AV_LOG_VERBOSE
, "found tfra\n");
3789 index
= av_mallocz(sizeof(MOVFragmentIndex
));
3791 return AVERROR(ENOMEM
);
3793 mov
->fragment_index_count
++;
3794 if ((err
= av_reallocp(&mov
->fragment_index_data
,
3795 mov
->fragment_index_count
*
3796 sizeof(MOVFragmentIndex
*))) < 0) {
3800 mov
->fragment_index_data
[mov
->fragment_index_count
- 1] =
3803 version
= avio_r8(f
);
3805 index
->track_id
= avio_rb32(f
);
3806 fieldlength
= avio_rb32(f
);
3807 index
->item_count
= avio_rb32(f
);
3808 index
->items
= av_mallocz(
3809 index
->item_count
* sizeof(MOVFragmentIndexItem
));
3810 if (!index
->items
) {
3811 return AVERROR(ENOMEM
);
3813 for (i
= 0; i
< index
->item_count
; i
++) {
3814 int64_t time
, offset
;
3816 time
= avio_rb64(f
);
3817 offset
= avio_rb64(f
);
3819 time
= avio_rb32(f
);
3820 offset
= avio_rb32(f
);
3822 index
->items
[i
].time
= time
;
3823 index
->items
[i
].moof_offset
= offset
;
3824 for (j
= 0; j
< ((fieldlength
>> 4) & 3) + 1; j
++)
3826 for (j
= 0; j
< ((fieldlength
>> 2) & 3) + 1; j
++)
3828 for (j
= 0; j
< ((fieldlength
>> 0) & 3) + 1; j
++)
3832 avio_seek(f
, pos
+ size
, SEEK_SET
);
3836 static int mov_read_mfra(MOVContext
*c
, AVIOContext
*f
)
3838 int64_t stream_size
= avio_size(f
);
3839 int64_t original_pos
= avio_tell(f
);
3843 if ((seek_ret
= avio_seek(f
, stream_size
- 4, SEEK_SET
)) < 0) {
3847 mfra_size
= avio_rb32(f
);
3848 if (mfra_size
< 0 || mfra_size
> stream_size
) {
3849 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (unreasonable size)\n");
3852 if ((seek_ret
= avio_seek(f
, -mfra_size
, SEEK_CUR
)) < 0) {
3856 if (avio_rb32(f
) != mfra_size
) {
3857 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (size mismatch)\n");
3860 if (avio_rb32(f
) != MKBETAG('m', 'f', 'r', 'a')) {
3861 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (tag mismatch)\n");
3865 av_log(c
->fc
, AV_LOG_VERBOSE
, "stream has mfra\n");
3866 while (!read_tfra(c
, f
)) {
3870 seek_ret
= avio_seek(f
, original_pos
, SEEK_SET
);
3872 av_log(c
->fc
, AV_LOG_ERROR
,
3873 "failed to seek back after looking for mfra\n");
3879 static int mov_read_header(AVFormatContext
*s
)
3881 MOVContext
*mov
= s
->priv_data
;
3882 AVIOContext
*pb
= s
->pb
;
3884 MOVAtom atom
= { AV_RL32("root") };
3888 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3890 atom
.size
= avio_size(pb
);
3892 atom
.size
= INT64_MAX
;
3894 /* check MOV header */
3896 if (mov
->moov_retry
)
3897 avio_seek(pb
, 0, SEEK_SET
);
3898 if ((err
= mov_read_default(mov
, pb
, atom
)) < 0) {
3899 av_log(s
, AV_LOG_ERROR
, "error reading header\n");
3903 } while (pb
->seekable
&& !mov
->found_moov
&& !mov
->moov_retry
++);
3904 if (!mov
->found_moov
) {
3905 av_log(s
, AV_LOG_ERROR
, "moov atom not found\n");
3907 return AVERROR_INVALIDDATA
;
3909 av_dlog(mov
->fc
, "on_parse_exit_offset=%"PRId64
"\n", avio_tell(pb
));
3912 if (mov
->chapter_track
> 0)
3913 mov_read_chapters(s
);
3914 for (i
= 0; i
< s
->nb_streams
; i
++)
3915 if (s
->streams
[i
]->codec
->codec_tag
== AV_RL32("tmcd"))
3916 mov_read_timecode_track(s
, s
->streams
[i
]);
3919 /* copy timecode metadata from tmcd tracks to the related video streams */
3920 for (i
= 0; i
< s
->nb_streams
; i
++) {
3921 AVStream
*st
= s
->streams
[i
];
3922 MOVStreamContext
*sc
= st
->priv_data
;
3923 if (sc
->timecode_track
> 0) {
3924 AVDictionaryEntry
*tcr
;
3925 int tmcd_st_id
= -1;
3927 for (j
= 0; j
< s
->nb_streams
; j
++)
3928 if (s
->streams
[j
]->id
== sc
->timecode_track
)
3931 if (tmcd_st_id
< 0 || tmcd_st_id
== i
)
3933 tcr
= av_dict_get(s
->streams
[tmcd_st_id
]->metadata
, "timecode", NULL
, 0);
3935 av_dict_set(&st
->metadata
, "timecode", tcr
->value
, 0);
3938 export_orphan_timecode(s
);
3940 for (i
= 0; i
< s
->nb_streams
; i
++) {
3941 AVStream
*st
= s
->streams
[i
];
3942 MOVStreamContext
*sc
= st
->priv_data
;
3943 fix_timescale(mov
, sc
);
3944 if(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&& st
->codec
->codec_id
== AV_CODEC_ID_AAC
) {
3945 st
->skip_samples
= sc
->start_pad
;
3947 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& sc
->nb_frames_for_fps
> 0 && sc
->duration_for_fps
> 0)
3948 av_reduce(&st
->avg_frame_rate
.num
, &st
->avg_frame_rate
.den
,
3949 sc
->time_scale
*(int64_t)sc
->nb_frames_for_fps
, sc
->duration_for_fps
, INT_MAX
);
3950 if (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
) {
3951 if (st
->codec
->width
<= 0 || st
->codec
->height
<= 0) {
3952 st
->codec
->width
= sc
->width
;
3953 st
->codec
->height
= sc
->height
;
3955 if (st
->codec
->codec_id
== AV_CODEC_ID_DVD_SUBTITLE
) {
3956 if ((err
= mov_rewrite_dvd_sub_extradata(st
)) < 0)
3962 if (mov
->trex_data
) {
3963 for (i
= 0; i
< s
->nb_streams
; i
++) {
3964 AVStream
*st
= s
->streams
[i
];
3965 MOVStreamContext
*sc
= st
->priv_data
;
3966 if (st
->duration
> 0)
3967 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/ st
->duration
;
3971 if (mov
->use_mfra_for
> 0) {
3972 for (i
= 0; i
< s
->nb_streams
; i
++) {
3973 AVStream
*st
= s
->streams
[i
];
3974 MOVStreamContext
*sc
= st
->priv_data
;
3975 if (sc
->duration_for_fps
> 0) {
3976 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/
3977 sc
->duration_for_fps
;
3982 for (i
= 0; i
< mov
->bitrates_count
&& i
< s
->nb_streams
; i
++) {
3983 if (mov
->bitrates
[i
]) {
3984 s
->streams
[i
]->codec
->bit_rate
= mov
->bitrates
[i
];
3988 ff_rfps_calculate(s
);
3990 for (i
= 0; i
< s
->nb_streams
; i
++) {
3991 AVStream
*st
= s
->streams
[i
];
3992 MOVStreamContext
*sc
= st
->priv_data
;
3994 switch (st
->codec
->codec_type
) {
3995 case AVMEDIA_TYPE_AUDIO
:
3996 err
= ff_replaygain_export(st
, s
->metadata
);
4002 case AVMEDIA_TYPE_VIDEO
:
4003 if (sc
->display_matrix
) {
4004 AVPacketSideData
*sd
, *tmp
;
4006 tmp
= av_realloc_array(st
->side_data
,
4007 st
->nb_side_data
+ 1, sizeof(*tmp
));
4009 return AVERROR(ENOMEM
);
4011 st
->side_data
= tmp
;
4014 sd
= &st
->side_data
[st
->nb_side_data
- 1];
4015 sd
->type
= AV_PKT_DATA_DISPLAYMATRIX
;
4016 sd
->size
= sizeof(int32_t) * 9;
4017 sd
->data
= (uint8_t*)sc
->display_matrix
;
4018 sc
->display_matrix
= NULL
;
4027 static AVIndexEntry
*mov_find_next_sample(AVFormatContext
*s
, AVStream
**st
)
4029 AVIndexEntry
*sample
= NULL
;
4030 int64_t best_dts
= INT64_MAX
;
4032 for (i
= 0; i
< s
->nb_streams
; i
++) {
4033 AVStream
*avst
= s
->streams
[i
];
4034 MOVStreamContext
*msc
= avst
->priv_data
;
4035 if (msc
->pb
&& msc
->current_sample
< avst
->nb_index_entries
) {
4036 AVIndexEntry
*current_sample
= &avst
->index_entries
[msc
->current_sample
];
4037 int64_t dts
= av_rescale(current_sample
->timestamp
, AV_TIME_BASE
, msc
->time_scale
);
4038 av_dlog(s
, "stream %d, sample %d, dts %"PRId64
"\n", i
, msc
->current_sample
, dts
);
4039 if (!sample
|| (!s
->pb
->seekable
&& current_sample
->pos
< sample
->pos
) ||
4041 ((msc
->pb
!= s
->pb
&& dts
< best_dts
) || (msc
->pb
== s
->pb
&&
4042 ((FFABS(best_dts
- dts
) <= AV_TIME_BASE
&& current_sample
->pos
< sample
->pos
) ||
4043 (FFABS(best_dts
- dts
) > AV_TIME_BASE
&& dts
< best_dts
)))))) {
4044 sample
= current_sample
;
4053 static int mov_read_packet(AVFormatContext
*s
, AVPacket
*pkt
)
4055 MOVContext
*mov
= s
->priv_data
;
4056 MOVStreamContext
*sc
;
4057 AVIndexEntry
*sample
;
4058 AVStream
*st
= NULL
;
4062 sample
= mov_find_next_sample(s
, &st
);
4064 mov
->found_mdat
= 0;
4065 if (!mov
->next_root_atom
)
4067 avio_seek(s
->pb
, mov
->next_root_atom
, SEEK_SET
);
4068 mov
->next_root_atom
= 0;
4069 if (mov_read_default(mov
, s
->pb
, (MOVAtom
){ AV_RL32("root"), INT64_MAX
}) < 0 ||
4072 av_dlog(s
, "read fragments, offset 0x%"PRIx64
"\n", avio_tell(s
->pb
));
4076 /* must be done just before reading, to avoid infinite loop on sample */
4077 sc
->current_sample
++;
4079 if (mov
->next_root_atom
) {
4080 sample
->pos
= FFMIN(sample
->pos
, mov
->next_root_atom
);
4081 sample
->size
= FFMIN(sample
->size
, (mov
->next_root_atom
- sample
->pos
));
4084 if (st
->discard
!= AVDISCARD_ALL
) {
4085 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
4086 av_log(mov
->fc
, AV_LOG_ERROR
, "stream %d, offset 0x%"PRIx64
": partial file\n",
4087 sc
->ffindex
, sample
->pos
);
4088 return AVERROR_INVALIDDATA
;
4090 ret
= av_get_packet(sc
->pb
, pkt
, sample
->size
);
4093 if (sc
->has_palette
) {
4096 pal
= av_packet_new_side_data(pkt
, AV_PKT_DATA_PALETTE
, AVPALETTE_SIZE
);
4098 av_log(mov
->fc
, AV_LOG_ERROR
, "Cannot append palette to packet\n");
4100 memcpy(pal
, sc
->palette
, AVPALETTE_SIZE
);
4101 sc
->has_palette
= 0;
4104 #if CONFIG_DV_DEMUXER
4105 if (mov
->dv_demux
&& sc
->dv_audio_container
) {
4106 avpriv_dv_produce_packet(mov
->dv_demux
, pkt
, pkt
->data
, pkt
->size
, pkt
->pos
);
4109 ret
= avpriv_dv_get_packet(mov
->dv_demux
, pkt
);
4116 pkt
->stream_index
= sc
->ffindex
;
4117 pkt
->dts
= sample
->timestamp
;
4118 if (sc
->ctts_data
&& sc
->ctts_index
< sc
->ctts_count
) {
4119 pkt
->pts
= pkt
->dts
+ sc
->dts_shift
+ sc
->ctts_data
[sc
->ctts_index
].duration
;
4120 /* update ctts context */
4122 if (sc
->ctts_index
< sc
->ctts_count
&&
4123 sc
->ctts_data
[sc
->ctts_index
].count
== sc
->ctts_sample
) {
4125 sc
->ctts_sample
= 0;
4128 pkt
->dts
= AV_NOPTS_VALUE
;
4130 int64_t next_dts
= (sc
->current_sample
< st
->nb_index_entries
) ?
4131 st
->index_entries
[sc
->current_sample
].timestamp
: st
->duration
;
4132 pkt
->duration
= next_dts
- pkt
->dts
;
4133 pkt
->pts
= pkt
->dts
;
4135 if (st
->discard
== AVDISCARD_ALL
)
4137 pkt
->flags
|= sample
->flags
& AVINDEX_KEYFRAME
? AV_PKT_FLAG_KEY
: 0;
4138 pkt
->pos
= sample
->pos
;
4139 av_dlog(s
, "stream %d, pts %"PRId64
", dts %"PRId64
", pos 0x%"PRIx64
", duration %d\n",
4140 pkt
->stream_index
, pkt
->pts
, pkt
->dts
, pkt
->pos
, pkt
->duration
);
4144 static int mov_seek_stream(AVFormatContext
*s
, AVStream
*st
, int64_t timestamp
, int flags
)
4146 MOVStreamContext
*sc
= st
->priv_data
;
4147 int sample
, time_sample
;
4150 sample
= av_index_search_timestamp(st
, timestamp
, flags
);
4151 av_dlog(s
, "stream %d, timestamp %"PRId64
", sample %d\n", st
->index
, timestamp
, sample
);
4152 if (sample
< 0 && st
->nb_index_entries
&& timestamp
< st
->index_entries
[0].timestamp
)
4154 if (sample
< 0) /* not sure what to do */
4155 return AVERROR_INVALIDDATA
;
4156 sc
->current_sample
= sample
;
4157 av_dlog(s
, "stream %d, found sample %d\n", st
->index
, sc
->current_sample
);
4158 /* adjust ctts index */
4159 if (sc
->ctts_data
) {
4161 for (i
= 0; i
< sc
->ctts_count
; i
++) {
4162 int next
= time_sample
+ sc
->ctts_data
[i
].count
;
4163 if (next
> sc
->current_sample
) {
4165 sc
->ctts_sample
= sc
->current_sample
- time_sample
;
4174 static int mov_read_seek(AVFormatContext
*s
, int stream_index
, int64_t sample_time
, int flags
)
4177 int64_t seek_timestamp
, timestamp
;
4181 if (stream_index
>= s
->nb_streams
)
4182 return AVERROR_INVALIDDATA
;
4184 st
= s
->streams
[stream_index
];
4185 sample
= mov_seek_stream(s
, st
, sample_time
, flags
);
4189 /* adjust seek timestamp to found sample timestamp */
4190 seek_timestamp
= st
->index_entries
[sample
].timestamp
;
4192 for (i
= 0; i
< s
->nb_streams
; i
++) {
4193 MOVStreamContext
*sc
= s
->streams
[i
]->priv_data
;
4195 st
->skip_samples
= (sample_time
<= 0) ? sc
->start_pad
: 0;
4197 if (stream_index
== i
)
4200 timestamp
= av_rescale_q(seek_timestamp
, s
->streams
[stream_index
]->time_base
, st
->time_base
);
4201 mov_seek_stream(s
, st
, timestamp
, flags
);
4206 #define OFFSET(x) offsetof(MOVContext, x)
4207 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4208 static const AVOption mov_options
[] = {
4209 {"use_absolute_path",
4210 "allow using absolute path when opening alias, this is a possible security issue",
4211 offsetof(MOVContext
, use_absolute_path
), FF_OPT_TYPE_INT
, {.i64
= 0},
4212 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
4213 {"ignore_editlist", "", offsetof(MOVContext
, ignore_editlist
), FF_OPT_TYPE_INT
, {.i64
= 0},
4214 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
4216 "use mfra for fragment timestamps",
4217 offsetof(MOVContext
, use_mfra_for
), FF_OPT_TYPE_INT
, {.i64
= FF_MOV_FLAG_MFRA_AUTO
},
4218 -1, FF_MOV_FLAG_MFRA_PTS
, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
,
4220 {"auto", "auto", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_AUTO
}, 0, 0,
4221 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4222 {"dts", "dts", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_DTS
}, 0, 0,
4223 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4224 {"pts", "pts", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_PTS
}, 0, 0,
4225 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4226 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all
),
4227 AV_OPT_TYPE_INT
, { .i64
= 0 }, 0, 1, .flags
= FLAGS
},
4231 static const AVClass mov_class
= {
4232 .class_name
= "mov,mp4,m4a,3gp,3g2,mj2",
4233 .item_name
= av_default_item_name
,
4234 .option
= mov_options
,
4235 .version
= LIBAVUTIL_VERSION_INT
,
4238 AVInputFormat ff_mov_demuxer
= {
4239 .name
= "mov,mp4,m4a,3gp,3g2,mj2",
4240 .long_name
= NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4241 .priv_class
= &mov_class
,
4242 .priv_data_size
= sizeof(MOVContext
),
4243 .extensions
= "mov,mp4,m4a,3gp,3g2,mj2",
4244 .read_probe
= mov_probe
,
4245 .read_header
= mov_read_header
,
4246 .read_packet
= mov_read_packet
,
4247 .read_close
= mov_read_close
,
4248 .read_seek
= mov_read_seek
,
4249 .flags
= AVFMT_NO_BYTE_SEEK
,