FFmpeg
isom.h
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1 /*
2  * ISO Media common code
3  * copyright (c) 2001 Fabrice Bellard
4  * copyright (c) 2002 Francois Revol <revol@free.fr>
5  * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #ifndef AVFORMAT_ISOM_H
25 #define AVFORMAT_ISOM_H
26 
27 #include <stddef.h>
28 #include <stdint.h>
29 
32 #include "libavutil/spherical.h"
33 #include "libavutil/stereo3d.h"
34 
35 #include "avio.h"
36 #include "internal.h"
37 #include "dv.h"
38 
39 /* isom.c */
40 extern const AVCodecTag ff_mp4_obj_type[];
41 extern const AVCodecTag ff_codec_movvideo_tags[];
42 extern const AVCodecTag ff_codec_movaudio_tags[];
44 extern const AVCodecTag ff_codec_movdata_tags[];
45 
46 int ff_mov_iso639_to_lang(const char lang[4], int mp4);
47 int ff_mov_lang_to_iso639(unsigned code, char to[4]);
48 
49 struct AVAESCTR;
50 
51 /* the QuickTime file format is quite convoluted...
52  * it has lots of index tables, each indexing something in another one...
53  * Here we just use what is needed to read the chunks
54  */
55 
56 typedef struct MOVStts {
57  unsigned int count;
58  unsigned int duration;
59 } MOVStts;
60 
61 typedef struct MOVCtts {
62  unsigned int count;
63  int duration;
64 } MOVCtts;
65 
66 typedef struct MOVStsc {
67  int first;
68  int count;
69  int id;
70 } MOVStsc;
71 
72 typedef struct MOVElst {
73  int64_t duration;
74  int64_t time;
75  float rate;
76 } MOVElst;
77 
78 typedef struct MOVDref {
79  uint32_t type;
80  char *path;
81  char *dir;
82  char volume[28];
83  char filename[64];
84  int16_t nlvl_to, nlvl_from;
85 } MOVDref;
86 
87 typedef struct MOVAtom {
88  uint32_t type;
89  int64_t size; /* total size (excluding the size and type fields) */
90 } MOVAtom;
91 
92 struct MOVParseTableEntry;
93 
94 typedef struct MOVFragment {
96  unsigned track_id;
97  uint64_t base_data_offset;
98  uint64_t moof_offset;
99  uint64_t implicit_offset;
100  unsigned stsd_id;
101  unsigned duration;
102  unsigned size;
103  unsigned flags;
104 } MOVFragment;
105 
106 typedef struct MOVTrackExt {
107  unsigned track_id;
108  unsigned stsd_id;
109  unsigned duration;
110  unsigned size;
111  unsigned flags;
112 } MOVTrackExt;
113 
114 typedef struct MOVSbgp {
115  unsigned int count;
116  unsigned int index;
117 } MOVSbgp;
118 
119 typedef struct MOVEncryptionIndex {
120  // Individual encrypted samples. If there are no elements, then the default
121  // settings will be used.
122  unsigned int nb_encrypted_samples;
124 
128  uint64_t* auxiliary_offsets; ///< Absolute seek position
131 
132 typedef struct MOVFragmentStreamInfo {
133  int id;
134  int64_t sidx_pts;
135  int64_t first_tfra_pts;
136  int64_t tfdt_dts;
137  int64_t next_trun_dts;
141 
142 typedef struct MOVFragmentIndexItem {
143  int64_t moof_offset;
145  int current;
149 
150 typedef struct MOVFragmentIndex {
152  int complete;
153  int current;
154  int nb_items;
157 
158 typedef struct MOVIndexRange {
159  int64_t start;
160  int64_t end;
161 } MOVIndexRange;
162 
163 typedef struct MOVStreamContext {
166  int ffindex; ///< AVStream index
168  unsigned int chunk_count;
169  int64_t *chunk_offsets;
170  unsigned int stts_count;
172  unsigned int sdtp_count;
173  uint8_t *sdtp_data;
174  unsigned int ctts_count;
175  unsigned int ctts_allocated_size;
177  unsigned int stsc_count;
179  unsigned int stsc_index;
181  unsigned int stps_count;
182  unsigned *stps_data; ///< partial sync sample for mpeg-2 open gop
184  unsigned int elst_count;
187  unsigned int sample_size; ///< may contain value calculated from stsd or value from stsz atom
188  unsigned int stsz_sample_size; ///< always contains sample size from stsz atom
189  unsigned int sample_count;
192  unsigned int keyframe_count;
193  int *keyframes;
195  int64_t time_offset; ///< time offset of the edit list entries
196  int64_t min_corrected_pts; ///< minimum Composition time shown by the edits excluding empty edits.
198  int64_t current_index;
201  unsigned int bytes_per_frame;
202  unsigned int samples_per_frame;
204  int pseudo_stream_id; ///< -1 means demux all ids
205  int16_t audio_cid; ///< stsd audio compression id
206  unsigned drefs_count;
208  int dref_id;
210  int width; ///< tkhd width
211  int height; ///< tkhd height
212  int dts_shift; ///< dts shift when ctts is negative
213  uint32_t palette[256];
215  int64_t data_size;
216  uint32_t tmcd_flags; ///< tmcd track flags
217  int64_t track_end; ///< used for dts generation in fragmented movie files
218  int start_pad; ///< amount of samples to skip due to enc-dec delay
219  unsigned int rap_group_count;
221 
224 
225  /** extradata array (and size) for multiple stsd */
226  uint8_t **extradata;
231 
238  size_t coll_size;
239 
240  uint32_t format;
241 
242  int has_sidx; // If there is an sidx entry for this stream.
243  struct {
244  struct AVAESCTR* aes_ctr;
245  struct AVAES *aes_ctx;
246  unsigned int frag_index_entry_base;
247  unsigned int per_sample_iv_size; // Either 0, 8, or 16.
250  } cenc;
252 
253 typedef struct MOVContext {
254  const AVClass *class; ///< class for private options
257  int64_t duration; ///< duration of the longest track
258  int found_moov; ///< 'moov' atom has been found
259  int found_mdat; ///< 'mdat' atom has been found
260  int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found
261  int trak_index; ///< Index of the current 'trak'
262  char **meta_keys;
263  unsigned meta_keys_count;
266  int isom; ///< 1 if file is ISO Media (mp4/3gp)
267  MOVFragment fragment; ///< current fragment in moof atom
269  unsigned trex_count;
270  int itunes_metadata; ///< metadata are itunes style
273  unsigned int nb_chapter_tracks;
279  int64_t next_root_atom; ///< offset of the next root atom
282  int *bitrates; ///< bitrates read before streams creation
287  int use_tfdt;
290  unsigned int aax_mode; ///< 'aax' file has been detected
291  uint8_t file_key[20];
292  uint8_t file_iv[20];
297  void *audible_key;
299  void *audible_iv;
302  uint8_t *decryption_key;
305  int32_t movie_display_matrix[3][3]; ///< display matrix from mvhd
307  uint32_t mfra_size;
308  uint32_t max_stts_delta;
309 } MOVContext;
310 
314 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id);
315 
316 #define MP4ODescrTag 0x01
317 #define MP4IODescrTag 0x02
318 #define MP4ESDescrTag 0x03
319 #define MP4DecConfigDescrTag 0x04
320 #define MP4DecSpecificDescrTag 0x05
321 #define MP4SLDescrTag 0x06
322 
323 #define MOV_TFHD_BASE_DATA_OFFSET 0x01
324 #define MOV_TFHD_STSD_ID 0x02
325 #define MOV_TFHD_DEFAULT_DURATION 0x08
326 #define MOV_TFHD_DEFAULT_SIZE 0x10
327 #define MOV_TFHD_DEFAULT_FLAGS 0x20
328 #define MOV_TFHD_DURATION_IS_EMPTY 0x010000
329 #define MOV_TFHD_DEFAULT_BASE_IS_MOOF 0x020000
330 
331 #define MOV_TRUN_DATA_OFFSET 0x01
332 #define MOV_TRUN_FIRST_SAMPLE_FLAGS 0x04
333 #define MOV_TRUN_SAMPLE_DURATION 0x100
334 #define MOV_TRUN_SAMPLE_SIZE 0x200
335 #define MOV_TRUN_SAMPLE_FLAGS 0x400
336 #define MOV_TRUN_SAMPLE_CTS 0x800
337 
338 #define MOV_FRAG_SAMPLE_FLAG_DEGRADATION_PRIORITY_MASK 0x0000ffff
339 #define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC 0x00010000
340 #define MOV_FRAG_SAMPLE_FLAG_PADDING_MASK 0x000e0000
341 #define MOV_FRAG_SAMPLE_FLAG_REDUNDANCY_MASK 0x00300000
342 #define MOV_FRAG_SAMPLE_FLAG_DEPENDED_MASK 0x00c00000
343 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_MASK 0x03000000
344 
345 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO 0x02000000
346 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES 0x01000000
347 
348 #define MOV_TKHD_FLAG_ENABLED 0x0001
349 #define MOV_TKHD_FLAG_IN_MOVIE 0x0002
350 #define MOV_TKHD_FLAG_IN_PREVIEW 0x0004
351 #define MOV_TKHD_FLAG_IN_POSTER 0x0008
352 
353 #define MOV_SAMPLE_DEPENDENCY_UNKNOWN 0x0
354 #define MOV_SAMPLE_DEPENDENCY_YES 0x1
355 #define MOV_SAMPLE_DEPENDENCY_NO 0x2
356 
357 
358 #define TAG_IS_AVCI(tag) \
359  ((tag) == MKTAG('a', 'i', '5', 'p') || \
360  (tag) == MKTAG('a', 'i', '5', 'q') || \
361  (tag) == MKTAG('a', 'i', '5', '2') || \
362  (tag) == MKTAG('a', 'i', '5', '3') || \
363  (tag) == MKTAG('a', 'i', '5', '5') || \
364  (tag) == MKTAG('a', 'i', '5', '6') || \
365  (tag) == MKTAG('a', 'i', '1', 'p') || \
366  (tag) == MKTAG('a', 'i', '1', 'q') || \
367  (tag) == MKTAG('a', 'i', '1', '2') || \
368  (tag) == MKTAG('a', 'i', '1', '3') || \
369  (tag) == MKTAG('a', 'i', '1', '5') || \
370  (tag) == MKTAG('a', 'i', '1', '6') || \
371  (tag) == MKTAG('a', 'i', 'v', 'x') || \
372  (tag) == MKTAG('A', 'V', 'i', 'n'))
373 
374 
376 
377 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries);
378 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout);
379 
380 #define FF_MOV_FLAG_MFRA_AUTO -1
381 #define FF_MOV_FLAG_MFRA_DTS 1
382 #define FF_MOV_FLAG_MFRA_PTS 2
383 
384 /**
385  * Compute codec id for 'lpcm' tag.
386  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
387  */
388 static inline enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
389 {
390  /* lpcm flags:
391  * 0x1 = float
392  * 0x2 = big-endian
393  * 0x4 = signed
394  */
395  return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
396 }
397 
398 #define MOV_ISMV_TTML_TAG MKTAG('d', 'f', 'x', 'p')
399 #define MOV_MP4_TTML_TAG MKTAG('s', 't', 'p', 'p')
400 
403  const char *value;
404 };
405 
407  const char *scheme_uri;
409 };
410 
411 extern const struct MP4TrackKindMapping ff_mov_track_kind_table[];
412 
413 #endif /* AVFORMAT_ISOM_H */
MOVStreamContext::ctts_allocated_size
unsigned int ctts_allocated_size
Definition: isom.h:175
MOVFragmentStreamInfo::first_tfra_pts
int64_t first_tfra_pts
Definition: isom.h:135
ff_get_pcm_codec_id
enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
Select a PCM codec based on the given parameters.
Definition: utils.c:368
MOVStreamContext::audio_cid
int16_t audio_cid
stsd audio compression id
Definition: isom.h:205
MOVStreamContext::height
int height
tkhd height
Definition: isom.h:211
MOVContext::moov_retry
int moov_retry
Definition: isom.h:284
MOVContext::nb_chapter_tracks
unsigned int nb_chapter_tracks
Definition: isom.h:273
MOVStreamContext::last_stsd_index
int last_stsd_index
Definition: isom.h:228
MOVContext::use_absolute_path
int use_absolute_path
Definition: isom.h:274
MOVStreamContext::extradata
uint8_t ** extradata
extradata array (and size) for multiple stsd
Definition: isom.h:226
MOVContext::activation_bytes
void * activation_bytes
Definition: isom.h:293
MOVFragmentStreamInfo
Definition: isom.h:132
MOVFragment::base_data_offset
uint64_t base_data_offset
Definition: isom.h:97
MOVStreamContext
Definition: isom.h:163
MOVStreamContext::stsc_data
MOVStsc * stsc_data
Definition: isom.h:178
MOVStreamContext::spherical
AVSphericalMapping * spherical
Definition: isom.h:234
MOVEncryptionIndex
Definition: isom.h:119
MOVContext::found_moov
int found_moov
'moov' atom has been found
Definition: isom.h:258
MOVSbgp
Definition: isom.h:114
MOVCtts
Definition: isom.h:61
MOVStreamContext::rap_group_count
unsigned int rap_group_count
Definition: isom.h:219
MOVContext::found_mdat
int found_mdat
'mdat' atom has been found
Definition: isom.h:259
MOVStreamContext::drefs_count
unsigned drefs_count
Definition: isom.h:206
MOVContext::max_stts_delta
uint32_t max_stts_delta
Definition: isom.h:308
MOVContext::trex_data
MOVTrackExt * trex_data
Definition: isom.h:268
MOVContext::bitrates
int * bitrates
bitrates read before streams creation
Definition: isom.h:282
MOVContext::export_all
int export_all
Definition: isom.h:280
MOVElst::rate
float rate
Definition: isom.h:75
spherical.h
MOVFragmentIndexItem::moof_offset
int64_t moof_offset
Definition: isom.h:143
MOVStreamContext::spherical_size
size_t spherical_size
Definition: isom.h:235
fc
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:551
MP4TrackKindMapping::scheme_uri
const char * scheme_uri
Definition: isom.h:407
MOVDref::dir
char * dir
Definition: isom.h:81
MOVContext::activation_bytes_size
int activation_bytes_size
Definition: isom.h:294
ff_mp4_parse_es_descr
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:305
MOVAtom
Definition: isom.h:87
MOVStreamContext::sample_count
unsigned int sample_count
Definition: isom.h:189
MOVFragmentIndex::allocated_size
int allocated_size
Definition: isom.h:151
MOVTrackExt::flags
unsigned flags
Definition: isom.h:111
MOVStreamContext::ctts_data
MOVCtts * ctts_data
Definition: isom.h:176
MOVStreamContext::aes_ctr
struct AVAESCTR * aes_ctr
Definition: isom.h:244
MOVStreamContext::dv_audio_container
int dv_audio_container
Definition: isom.h:203
MOVStreamContext::stsd_count
int stsd_count
Definition: isom.h:229
AVContentLightMetadata
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
Definition: mastering_display_metadata.h:98
MOVStreamContext::stsc_count
unsigned int stsc_count
Definition: isom.h:177
MOVStreamContext::has_palette
int has_palette
Definition: isom.h:214
MOVIndexRange::start
int64_t start
Definition: isom.h:159
MOVStreamContext::nb_frames_for_fps
int nb_frames_for_fps
Definition: isom.h:222
MOVStreamContext::mastering
AVMasteringDisplayMetadata * mastering
Definition: isom.h:236
MOVFragmentIndexItem::current
int current
Definition: isom.h:145
MOVTrackExt
Definition: isom.h:106
MOVFragment::found_tfhd
int found_tfhd
Definition: isom.h:95
MOVContext::decryption_key
uint8_t * decryption_key
Definition: isom.h:302
MOVStreamContext::ctts_index
int ctts_index
Definition: isom.h:185
MOVParseTableEntry
Definition: mov.c:74
dv.h
MOVCtts::duration
int duration
Definition: isom.h:63
MOVContext
Definition: isom.h:253
MOVContext::isom
int isom
1 if file is ISO Media (mp4/3gp)
Definition: isom.h:266
MOVStreamContext::width
int width
tkhd width
Definition: isom.h:210
MOVContext::meta_keys
char ** meta_keys
Definition: isom.h:262
MOVStreamContext::extradata_size
int * extradata_size
Definition: isom.h:227
MOVContext::audible_iv_size
int audible_iv_size
Definition: isom.h:300
MOVStreamContext::keyframes
int * keyframes
Definition: isom.h:193
MOVEncryptionIndex::auxiliary_info_sample_count
size_t auxiliary_info_sample_count
Definition: isom.h:126
MOVStsc::id
int id
Definition: isom.h:69
MOVStreamContext::elst_data
MOVElst * elst_data
Definition: isom.h:183
MOVFragmentIndex::complete
int complete
Definition: isom.h:152
MOVStreamContext::stsc_sample
int stsc_sample
Definition: isom.h:180
AVCodecTag
Definition: internal.h:51
MOVTrackExt::track_id
unsigned track_id
Definition: isom.h:107
MOVEncryptionIndex::auxiliary_offsets
uint64_t * auxiliary_offsets
Absolute seek position.
Definition: isom.h:128
MOVStreamContext::dts_shift
int dts_shift
dts shift when ctts is negative
Definition: isom.h:212
MOVStreamContext::stsd_version
int stsd_version
Definition: isom.h:230
ff_mov_read_esds
int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
Definition: mov_esds.c:23
stereo3d.h
MOVFragmentStreamInfo::encryption_index
MOVEncryptionIndex * encryption_index
Definition: isom.h:139
MOVContext::fc
AVFormatContext * fc
Definition: isom.h:255
ff_mov_lang_to_iso639
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:261
MOVContext::audible_key_size
int audible_key_size
Definition: isom.h:298
MOVCtts::count
unsigned int count
Definition: isom.h:62
MOVStreamContext::drefs
MOVDref * drefs
Definition: isom.h:207
MOVContext::aes_decrypt
struct AVAES * aes_decrypt
Definition: isom.h:301
MOVFragmentIndex::nb_items
int nb_items
Definition: isom.h:154
MOVStreamContext::keyframe_absent
int keyframe_absent
Definition: isom.h:191
MOVStts::duration
unsigned int duration
Definition: isom.h:58
MOVStreamContext::coll_size
size_t coll_size
Definition: isom.h:238
to
const char * to
Definition: webvttdec.c:35
MOVStreamContext::min_corrected_pts
int64_t min_corrected_pts
minimum Composition time shown by the edits excluding empty edits.
Definition: isom.h:196
MOVStreamContext::sdtp_count
unsigned int sdtp_count
Definition: isom.h:172
ff_mov_iso639_to_lang
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:234
MOVStreamContext::sdtp_data
uint8_t * sdtp_data
Definition: isom.h:173
MOVTrackExt::duration
unsigned duration
Definition: isom.h:109
MOVContext::audible_iv
void * audible_iv
Definition: isom.h:299
MOVStreamContext::current_sample
int current_sample
Definition: isom.h:197
MOVFragmentStreamInfo::sidx_pts
int64_t sidx_pts
Definition: isom.h:134
MOVFragmentIndex::current
int current
Definition: isom.h:153
MOVEncryptionIndex::encrypted_samples
AVEncryptionInfo ** encrypted_samples
Definition: isom.h:123
MOVAtom::size
int64_t size
Definition: isom.h:89
ff_mov_get_lpcm_codec_id
static enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
Compute codec id for 'lpcm' tag.
Definition: isom.h:388
MOVStreamContext::keyframe_count
unsigned int keyframe_count
Definition: isom.h:192
MOVStsc
Definition: isom.h:66
AVFormatContext
Format I/O context.
Definition: avformat.h:1200
MOVStreamContext::index_ranges
MOVIndexRange * index_ranges
Definition: isom.h:199
internal.h
MOVTrackExt::stsd_id
unsigned stsd_id
Definition: isom.h:108
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
MOVContext::ignore_editlist
int ignore_editlist
Definition: isom.h:275
MOVDref
Definition: isom.h:78
MOVStreamContext::ctts_count
unsigned int ctts_count
Definition: isom.h:174
MP4TrackKindValueMapping::disposition
int disposition
Definition: isom.h:402
MOVContext::use_tfdt
int use_tfdt
Definition: isom.h:287
ff_mp4_read_descr
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:296
MOVElst
Definition: isom.h:72
MOVContext::movie_display_matrix
int32_t movie_display_matrix[3][3]
display matrix from mvhd
Definition: isom.h:305
MOVDref::nlvl_to
int16_t nlvl_to
Definition: isom.h:84
MOVContext::atom_depth
int atom_depth
Definition: isom.h:289
MOVContext::duration
int64_t duration
duration of the longest track
Definition: isom.h:257
MOVStreamContext::time_offset
int64_t time_offset
time offset of the edit list entries
Definition: isom.h:195
MOVStreamContext::current_index_range
MOVIndexRange * current_index_range
Definition: isom.h:200
MOVStreamContext::timecode_track
int timecode_track
Definition: isom.h:209
ff_codec_movvideo_tags
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom_tags.c:29
ff_mp4_read_descr_len
int ff_mp4_read_descr_len(AVIOContext *pb)
Definition: isom.c:283
MOVStreamContext::rap_group
MOVSbgp * rap_group
Definition: isom.h:220
ff_codec_movaudio_tags
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom_tags.c:278
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
MOVSbgp::count
unsigned int count
Definition: isom.h:115
MOVStts
Definition: isom.h:56
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:47
MOVContext::dv_demux
DVDemuxContext * dv_demux
Definition: isom.h:264
MOVEncryptionIndex::auxiliary_info_default_size
uint8_t auxiliary_info_default_size
Definition: isom.h:127
MOVContext::has_looked_for_mfra
int has_looked_for_mfra
Definition: isom.h:286
MOVFragment::flags
unsigned flags
Definition: isom.h:103
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
MOVStreamContext::aes_ctx
struct AVAES * aes_ctx
Definition: isom.h:245
MOVContext::handbrake_version
int handbrake_version
Definition: isom.h:271
MOVStreamContext::ctts_sample
int ctts_sample
Definition: isom.h:186
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Definition: isom.h:142
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int first
Definition: isom.h:67
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unsigned int stsz_sample_size
always contains sample size from stsz atom
Definition: isom.h:188
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unsigned bps
Definition: movenc.c:1597
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void * audible_fixed_key
Definition: isom.h:295
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unsigned trex_count
Definition: isom.h:269
avio.h
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Definition: isom.h:237
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Definition: isom.h:80
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Definition: isom.h:291
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Definition: dv.c:54
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size_t auxiliary_offsets_count
Definition: isom.h:129
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MOVFragmentStreamInfo * stream_info
Definition: isom.h:147
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int64_t * chunk_offsets
Definition: isom.h:169
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const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:35
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MOVFragmentIndexItem * item
Definition: isom.h:155
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int decryption_key_len
Definition: isom.h:303
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int audible_fixed_key_size
Definition: isom.h:296
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int16_t nlvl_from
Definition: isom.h:84
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int64_t next_trun_dts
Definition: isom.h:137
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unsigned int stsc_index
Definition: isom.h:179
MOVIndexRange
Definition: isom.h:158
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int advanced_editlist
Definition: isom.h:276
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int time_scale
Definition: isom.h:194
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unsigned int bytes_per_frame
Definition: isom.h:201
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int64_t end
Definition: isom.h:160
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:178
MOVStreamContext::stereo3d
AVStereo3D * stereo3d
Definition: isom.h:233
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char volume[28]
Definition: isom.h:82
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unsigned int stps_count
Definition: isom.h:181
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unsigned duration
Definition: isom.h:101
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MOVFragmentIndex frag_index
Definition: isom.h:288
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const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:76
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int dref_id
Definition: isom.h:208
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uint32_t mfra_size
Definition: isom.h:307
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void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
Definition: isom.c:413
MOVStreamContext::pb
AVIOContext * pb
Definition: isom.h:164
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Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
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unsigned size
Definition: isom.h:102
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int export_xmp
Definition: isom.h:281
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int64_t tfdt_dts
Definition: isom.h:136
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int * sample_sizes
Definition: isom.h:190
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Definition: isom.h:401
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const AVCodecTag ff_codec_movdata_tags[]
Definition: isom.c:83
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unsigned int chunk_count
Definition: isom.h:168
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int64_t data_size
Definition: isom.h:215
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uint32_t tag
Definition: movenc.c:1596
AVStream
Stream structure.
Definition: avformat.h:935
MOVEncryptionIndex::nb_encrypted_samples
unsigned int nb_encrypted_samples
Definition: isom.h:122
MOVStreamContext::stts_data
MOVStts * stts_data
Definition: isom.h:171
AVAES
Definition: aes_internal.h:34
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unsigned int index
Definition: isom.h:116
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int * chapter_tracks
Definition: isom.h:272
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uint64_t implicit_offset
Definition: isom.h:99
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int pseudo_stream_id
-1 means demux all ids
Definition: isom.h:204
MOVContext::time_scale
int time_scale
Definition: isom.h:256
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const struct MP4TrackKindValueMapping * value_maps
Definition: isom.h:408
MOVFragment
Definition: isom.h:94
MOVContext::use_mfra_for
int use_mfra_for
Definition: isom.h:285
MOVContext::enable_drefs
int enable_drefs
Definition: isom.h:304
AVEncryptionInfo
This describes encryption info for a packet.
Definition: encryption_info.h:43
MOVStreamContext::encryption_index
MOVEncryptionIndex * encryption_index
Definition: isom.h:249
MOVStreamContext::cenc
struct MOVStreamContext::@261 cenc
MOVStreamContext::sample_size
unsigned int sample_size
may contain value calculated from stsd or value from stsz atom
Definition: isom.h:187
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int64_t duration_for_fps
Definition: isom.h:223
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uint64_t moof_offset
Definition: isom.h:98
MOVTrackExt::size
unsigned size
Definition: isom.h:110
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AVFormatContext * dv_fctx
Definition: isom.h:265
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unsigned int aax_mode
'aax' file has been detected
Definition: isom.h:290
MOVFragmentIndex
Definition: isom.h:150
MOVStreamContext::track_end
int64_t track_end
used for dts generation in fragmented movie files
Definition: isom.h:217
MOVContext::fragment
MOVFragment fragment
current fragment in moof atom
Definition: isom.h:267
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uint32_t type
Definition: isom.h:79
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unsigned int per_sample_iv_size
Definition: isom.h:247
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int nb_stream_info
Definition: isom.h:146
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int has_sidx
Definition: isom.h:242
MOVFragmentStreamInfo::id
int id
Definition: isom.h:133
encryption_info.h
MOVStreamContext::pb_is_copied
int pb_is_copied
Definition: isom.h:165
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int64_t time
Definition: isom.h:74
MOVStreamContext::next_chunk
int next_chunk
Definition: isom.h:167
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int trak_index
Index of the current 'trak'.
Definition: isom.h:261
mastering_display_metadata.h
MOVContext::itunes_metadata
int itunes_metadata
metadata are itunes style
Definition: isom.h:270
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uint8_t * auxiliary_info_sizes
Definition: isom.h:125
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unsigned stsd_id
Definition: isom.h:100
ff_mov_track_kind_table
const struct MP4TrackKindMapping ff_mov_track_kind_table[]
Definition: isom.c:448
ff_mp4_read_dec_config_descr
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:330
ff_mov_read_stsd_entries
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
Definition: mov.c:2490
MOVStreamContext::stps_data
unsigned * stps_data
partial sync sample for mpeg-2 open gop
Definition: isom.h:182
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int found_hdlr_mdta
'hdlr' atom with type 'mdta' has been found
Definition: isom.h:260
MOVStreamContext::tmcd_flags
uint32_t tmcd_flags
tmcd track flags
Definition: isom.h:216
int32_t
int32_t
Definition: audioconvert.c:56
MOVAtom::type
uint32_t type
Definition: isom.h:88
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int headers_read
Definition: isom.h:144
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
MOVStreamContext::start_pad
int start_pad
amount of samples to skip due to enc-dec delay
Definition: isom.h:218
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const char * value
Definition: isom.h:403
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char filename[64]
Definition: isom.h:83
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int count
Definition: isom.h:68
MOVStts::count
unsigned int count
Definition: isom.h:57
MOVStreamContext::display_matrix
int32_t * display_matrix
Definition: isom.h:232
MOVStreamContext::current_index
int64_t current_index
Definition: isom.h:198
MOVFragmentStreamInfo::index_entry
int index_entry
Definition: isom.h:138
MOVStreamContext::format
uint32_t format
Definition: isom.h:240
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int bitrates_count
Definition: isom.h:283
MOVContext::audible_key
void * audible_key
Definition: isom.h:297
AVStereo3D
Stereo 3D type: this structure describes how two videos are packed within a single video surface,...
Definition: stereo3d.h:176
MOVStreamContext::samples_per_frame
unsigned int samples_per_frame
Definition: isom.h:202
MOVElst::duration
int64_t duration
Definition: isom.h:73
MOVContext::seek_individually
int seek_individually
Definition: isom.h:278
MOVStreamContext::frag_index_entry_base
unsigned int frag_index_entry_base
Definition: isom.h:246
MOVStreamContext::stts_count
unsigned int stts_count
Definition: isom.h:170
MOVStreamContext::elst_count
unsigned int elst_count
Definition: isom.h:184
AVSphericalMapping
This structure describes how to handle spherical videos, outlining information about projection,...
Definition: spherical.h:82
AVAESCTR
Definition: aes_ctr.c:30
MOVContext::file_iv
uint8_t file_iv[20]
Definition: isom.h:292
MOVStreamContext::default_encrypted_sample
AVEncryptionInfo * default_encrypted_sample
Definition: isom.h:248
MOVContext::next_root_atom
int64_t next_root_atom
offset of the next root atom
Definition: isom.h:279
MOVContext::meta_keys_count
unsigned meta_keys_count
Definition: isom.h:263
MOVStreamContext::palette
uint32_t palette[256]
Definition: isom.h:213
MOVContext::have_read_mfra_size
int have_read_mfra_size
Definition: isom.h:306
MOVFragment::track_id
unsigned track_id
Definition: isom.h:96
MOVContext::ignore_chapters
int ignore_chapters
Definition: isom.h:277
MP4TrackKindMapping
Definition: isom.h:406
MOVStreamContext::ffindex
int ffindex
AVStream index.
Definition: isom.h:166