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  int duration;
59 } MOVStts;
60 
61 typedef struct MOVStsc {
62  int first;
63  int count;
64  int id;
65 } MOVStsc;
66 
67 typedef struct MOVElst {
68  int64_t duration;
69  int64_t time;
70  float rate;
71 } MOVElst;
72 
73 typedef struct MOVDref {
74  uint32_t type;
75  char *path;
76  char *dir;
77  char volume[28];
78  char filename[64];
79  int16_t nlvl_to, nlvl_from;
80 } MOVDref;
81 
82 typedef struct MOVAtom {
83  uint32_t type;
84  int64_t size; /* total size (excluding the size and type fields) */
85 } MOVAtom;
86 
87 struct MOVParseTableEntry;
88 
89 typedef struct MOVFragment {
91  unsigned track_id;
92  uint64_t base_data_offset;
93  uint64_t moof_offset;
94  uint64_t implicit_offset;
95  unsigned stsd_id;
96  unsigned duration;
97  unsigned size;
98  unsigned flags;
99 } MOVFragment;
100 
101 typedef struct MOVTrackExt {
102  unsigned track_id;
103  unsigned stsd_id;
104  unsigned duration;
105  unsigned size;
106  unsigned flags;
107 } MOVTrackExt;
108 
109 typedef struct MOVSbgp {
110  unsigned int count;
111  unsigned int index;
112 } MOVSbgp;
113 
114 typedef struct MOVEncryptionIndex {
115  // Individual encrypted samples. If there are no elements, then the default
116  // settings will be used.
117  unsigned int nb_encrypted_samples;
119 
123  uint64_t* auxiliary_offsets; ///< Absolute seek position
126 
127 typedef struct MOVFragmentStreamInfo {
128  int id;
129  int64_t sidx_pts;
130  int64_t first_tfra_pts;
131  int64_t tfdt_dts;
132  int64_t next_trun_dts;
136 
137 typedef struct MOVFragmentIndexItem {
138  int64_t moof_offset;
140  int current;
144 
145 typedef struct MOVFragmentIndex {
147  int complete;
148  int current;
149  int nb_items;
152 
153 typedef struct MOVIndexRange {
154  int64_t start;
155  int64_t end;
156 } MOVIndexRange;
157 
158 typedef struct MOVStreamContext {
161  int ffindex; ///< AVStream index
163  unsigned int chunk_count;
164  int64_t *chunk_offsets;
165  unsigned int stts_count;
167  unsigned int sdtp_count;
168  uint8_t *sdtp_data;
169  unsigned int ctts_count;
170  unsigned int ctts_allocated_size;
172  unsigned int stsc_count;
174  unsigned int stsc_index;
176  unsigned int stps_count;
177  unsigned *stps_data; ///< partial sync sample for mpeg-2 open gop
179  unsigned int elst_count;
182  unsigned int sample_size; ///< may contain value calculated from stsd or value from stsz atom
183  unsigned int stsz_sample_size; ///< always contains sample size from stsz atom
184  unsigned int sample_count;
187  unsigned int keyframe_count;
188  int *keyframes;
190  int64_t time_offset; ///< time offset of the edit list entries
191  int64_t min_corrected_pts; ///< minimum Composition time shown by the edits excluding empty edits.
193  int64_t current_index;
196  unsigned int bytes_per_frame;
197  unsigned int samples_per_frame;
199  int pseudo_stream_id; ///< -1 means demux all ids
200  int16_t audio_cid; ///< stsd audio compression id
201  unsigned drefs_count;
203  int dref_id;
205  int width; ///< tkhd width
206  int height; ///< tkhd height
207  int dts_shift; ///< dts shift when ctts is negative
208  uint32_t palette[256];
210  int64_t data_size;
211  uint32_t tmcd_flags; ///< tmcd track flags
212  int64_t track_end; ///< used for dts generation in fragmented movie files
213  int start_pad; ///< amount of samples to skip due to enc-dec delay
214  unsigned int rap_group_count;
216 
219 
220  /** extradata array (and size) for multiple stsd */
221  uint8_t **extradata;
226 
233  size_t coll_size;
234 
235  uint32_t format;
236 
237  int has_sidx; // If there is an sidx entry for this stream.
238  struct {
239  struct AVAESCTR* aes_ctr;
240  unsigned int per_sample_iv_size; // Either 0, 8, or 16.
243  } cenc;
245 
246 typedef struct MOVContext {
247  const AVClass *class; ///< class for private options
250  int64_t duration; ///< duration of the longest track
251  int found_moov; ///< 'moov' atom has been found
252  int found_mdat; ///< 'mdat' atom has been found
253  int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found
254  int trak_index; ///< Index of the current 'trak'
255  char **meta_keys;
256  unsigned meta_keys_count;
259  int isom; ///< 1 if file is ISO Media (mp4/3gp)
260  MOVFragment fragment; ///< current fragment in moof atom
262  unsigned trex_count;
263  int itunes_metadata; ///< metadata are itunes style
266  unsigned int nb_chapter_tracks;
272  int64_t next_root_atom; ///< offset of the next root atom
275  int *bitrates; ///< bitrates read before streams creation
282  unsigned int aax_mode; ///< 'aax' file has been detected
283  uint8_t file_key[20];
284  uint8_t file_iv[20];
289  void *audible_key;
291  void *audible_iv;
294  uint8_t *decryption_key;
297  int32_t movie_display_matrix[3][3]; ///< display matrix from mvhd
299  uint32_t mfra_size;
300 } MOVContext;
301 
305 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id);
306 
307 #define MP4ODescrTag 0x01
308 #define MP4IODescrTag 0x02
309 #define MP4ESDescrTag 0x03
310 #define MP4DecConfigDescrTag 0x04
311 #define MP4DecSpecificDescrTag 0x05
312 #define MP4SLDescrTag 0x06
313 
314 #define MOV_TFHD_BASE_DATA_OFFSET 0x01
315 #define MOV_TFHD_STSD_ID 0x02
316 #define MOV_TFHD_DEFAULT_DURATION 0x08
317 #define MOV_TFHD_DEFAULT_SIZE 0x10
318 #define MOV_TFHD_DEFAULT_FLAGS 0x20
319 #define MOV_TFHD_DURATION_IS_EMPTY 0x010000
320 #define MOV_TFHD_DEFAULT_BASE_IS_MOOF 0x020000
321 
322 #define MOV_TRUN_DATA_OFFSET 0x01
323 #define MOV_TRUN_FIRST_SAMPLE_FLAGS 0x04
324 #define MOV_TRUN_SAMPLE_DURATION 0x100
325 #define MOV_TRUN_SAMPLE_SIZE 0x200
326 #define MOV_TRUN_SAMPLE_FLAGS 0x400
327 #define MOV_TRUN_SAMPLE_CTS 0x800
328 
329 #define MOV_FRAG_SAMPLE_FLAG_DEGRADATION_PRIORITY_MASK 0x0000ffff
330 #define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC 0x00010000
331 #define MOV_FRAG_SAMPLE_FLAG_PADDING_MASK 0x000e0000
332 #define MOV_FRAG_SAMPLE_FLAG_REDUNDANCY_MASK 0x00300000
333 #define MOV_FRAG_SAMPLE_FLAG_DEPENDED_MASK 0x00c00000
334 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_MASK 0x03000000
335 
336 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO 0x02000000
337 #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES 0x01000000
338 
339 #define MOV_TKHD_FLAG_ENABLED 0x0001
340 #define MOV_TKHD_FLAG_IN_MOVIE 0x0002
341 #define MOV_TKHD_FLAG_IN_PREVIEW 0x0004
342 #define MOV_TKHD_FLAG_IN_POSTER 0x0008
343 
344 #define MOV_SAMPLE_DEPENDENCY_UNKNOWN 0x0
345 #define MOV_SAMPLE_DEPENDENCY_YES 0x1
346 #define MOV_SAMPLE_DEPENDENCY_NO 0x2
347 
348 
349 #define TAG_IS_AVCI(tag) \
350  ((tag) == MKTAG('a', 'i', '5', 'p') || \
351  (tag) == MKTAG('a', 'i', '5', 'q') || \
352  (tag) == MKTAG('a', 'i', '5', '2') || \
353  (tag) == MKTAG('a', 'i', '5', '3') || \
354  (tag) == MKTAG('a', 'i', '5', '5') || \
355  (tag) == MKTAG('a', 'i', '5', '6') || \
356  (tag) == MKTAG('a', 'i', '1', 'p') || \
357  (tag) == MKTAG('a', 'i', '1', 'q') || \
358  (tag) == MKTAG('a', 'i', '1', '2') || \
359  (tag) == MKTAG('a', 'i', '1', '3') || \
360  (tag) == MKTAG('a', 'i', '1', '5') || \
361  (tag) == MKTAG('a', 'i', '1', '6') || \
362  (tag) == MKTAG('a', 'i', 'v', 'x') || \
363  (tag) == MKTAG('A', 'V', 'i', 'n'))
364 
365 
367 
368 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries);
369 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout);
370 
371 #define FF_MOV_FLAG_MFRA_AUTO -1
372 #define FF_MOV_FLAG_MFRA_DTS 1
373 #define FF_MOV_FLAG_MFRA_PTS 2
374 
375 /**
376  * Compute codec id for 'lpcm' tag.
377  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
378  */
379 static inline enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
380 {
381  /* lpcm flags:
382  * 0x1 = float
383  * 0x2 = big-endian
384  * 0x4 = signed
385  */
386  return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
387 }
388 
389 #endif /* AVFORMAT_ISOM_H */
MOVStreamContext::ctts_allocated_size
unsigned int ctts_allocated_size
Definition: isom.h:170
MOVFragmentStreamInfo::first_tfra_pts
int64_t first_tfra_pts
Definition: isom.h:130
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:3085
MOVStreamContext::audio_cid
int16_t audio_cid
stsd audio compression id
Definition: isom.h:200
MOVStreamContext::height
int height
tkhd height
Definition: isom.h:206
MOVContext::moov_retry
int moov_retry
Definition: isom.h:277
MOVContext::nb_chapter_tracks
unsigned int nb_chapter_tracks
Definition: isom.h:266
MOVStreamContext::last_stsd_index
int last_stsd_index
Definition: isom.h:223
MOVContext::use_absolute_path
int use_absolute_path
Definition: isom.h:267
MOVStreamContext::extradata
uint8_t ** extradata
extradata array (and size) for multiple stsd
Definition: isom.h:221
MOVContext::activation_bytes
void * activation_bytes
Definition: isom.h:285
MOVFragmentStreamInfo
Definition: isom.h:127
MOVFragment::base_data_offset
uint64_t base_data_offset
Definition: isom.h:92
MOVStreamContext
Definition: isom.h:158
MOVStreamContext::stsc_data
MOVStsc * stsc_data
Definition: isom.h:173
MOVStreamContext::spherical
AVSphericalMapping * spherical
Definition: isom.h:229
MOVEncryptionIndex
Definition: isom.h:114
MOVContext::found_moov
int found_moov
'moov' atom has been found
Definition: isom.h:251
MOVSbgp
Definition: isom.h:109
MOVStreamContext::rap_group_count
unsigned int rap_group_count
Definition: isom.h:214
MOVContext::found_mdat
int found_mdat
'mdat' atom has been found
Definition: isom.h:252
MOVStreamContext::drefs_count
unsigned drefs_count
Definition: isom.h:201
MOVContext::trex_data
MOVTrackExt * trex_data
Definition: isom.h:261
MOVContext::bitrates
int * bitrates
bitrates read before streams creation
Definition: isom.h:275
MOVContext::export_all
int export_all
Definition: isom.h:273
MOVElst::rate
float rate
Definition: isom.h:70
spherical.h
MOVFragmentIndexItem::moof_offset
int64_t moof_offset
Definition: isom.h:138
MOVStreamContext::spherical_size
size_t spherical_size
Definition: isom.h:230
fc
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:551
MOVDref::dir
char * dir
Definition: isom.h:76
MOVContext::activation_bytes_size
int activation_bytes_size
Definition: isom.h:286
ff_mp4_parse_es_descr
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:304
MOVAtom
Definition: isom.h:82
MOVStreamContext::sample_count
unsigned int sample_count
Definition: isom.h:184
MOVFragmentIndex::allocated_size
int allocated_size
Definition: isom.h:146
MOVTrackExt::flags
unsigned flags
Definition: isom.h:106
MOVStreamContext::aes_ctr
struct AVAESCTR * aes_ctr
Definition: isom.h:239
MOVStreamContext::dv_audio_container
int dv_audio_container
Definition: isom.h:198
MOVStreamContext::stsd_count
int stsd_count
Definition: isom.h:224
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:172
MOVStreamContext::has_palette
int has_palette
Definition: isom.h:209
MOVIndexRange::start
int64_t start
Definition: isom.h:154
MOVStreamContext::nb_frames_for_fps
int nb_frames_for_fps
Definition: isom.h:217
MOVStreamContext::mastering
AVMasteringDisplayMetadata * mastering
Definition: isom.h:231
MOVFragmentIndexItem::current
int current
Definition: isom.h:140
MOVTrackExt
Definition: isom.h:101
MOVFragment::found_tfhd
int found_tfhd
Definition: isom.h:90
MOVContext::decryption_key
uint8_t * decryption_key
Definition: isom.h:294
MOVStreamContext::ctts_index
int ctts_index
Definition: isom.h:180
MOVParseTableEntry
Definition: mov.c:72
dv.h
MOVContext
Definition: isom.h:246
MOVContext::isom
int isom
1 if file is ISO Media (mp4/3gp)
Definition: isom.h:259
MOVStreamContext::width
int width
tkhd width
Definition: isom.h:205
MOVContext::meta_keys
char ** meta_keys
Definition: isom.h:255
MOVStreamContext::extradata_size
int * extradata_size
Definition: isom.h:222
MOVContext::audible_iv_size
int audible_iv_size
Definition: isom.h:292
MOVStreamContext::keyframes
int * keyframes
Definition: isom.h:188
MOVEncryptionIndex::auxiliary_info_sample_count
size_t auxiliary_info_sample_count
Definition: isom.h:121
MOVStsc::id
int id
Definition: isom.h:64
MOVStreamContext::elst_data
MOVElst * elst_data
Definition: isom.h:178
MOVFragmentIndex::complete
int complete
Definition: isom.h:147
MOVStreamContext::stsc_sample
int stsc_sample
Definition: isom.h:175
AVCodecTag
Definition: internal.h:42
MOVTrackExt::track_id
unsigned track_id
Definition: isom.h:102
MOVEncryptionIndex::auxiliary_offsets
uint64_t * auxiliary_offsets
Absolute seek position.
Definition: isom.h:123
MOVStreamContext::dts_shift
int dts_shift
dts shift when ctts is negative
Definition: isom.h:207
MOVStreamContext::stsd_version
int stsd_version
Definition: isom.h:225
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:134
MOVContext::fc
AVFormatContext * fc
Definition: isom.h:248
ff_mov_lang_to_iso639
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:260
MOVContext::audible_key_size
int audible_key_size
Definition: isom.h:290
MOVStreamContext::drefs
MOVDref * drefs
Definition: isom.h:202
MOVContext::aes_decrypt
struct AVAES * aes_decrypt
Definition: isom.h:293
MOVFragmentIndex::nb_items
int nb_items
Definition: isom.h:149
MOVStreamContext::keyframe_absent
int keyframe_absent
Definition: isom.h:186
MOVStreamContext::coll_size
size_t coll_size
Definition: isom.h:233
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:191
MOVStreamContext::sdtp_count
unsigned int sdtp_count
Definition: isom.h:167
ff_mov_iso639_to_lang
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:233
MOVStreamContext::sdtp_data
uint8_t * sdtp_data
Definition: isom.h:168
MOVTrackExt::duration
unsigned duration
Definition: isom.h:104
MOVContext::audible_iv
void * audible_iv
Definition: isom.h:291
MOVStreamContext::current_sample
int current_sample
Definition: isom.h:192
MOVFragmentStreamInfo::sidx_pts
int64_t sidx_pts
Definition: isom.h:129
MOVFragmentIndex::current
int current
Definition: isom.h:148
MOVEncryptionIndex::encrypted_samples
AVEncryptionInfo ** encrypted_samples
Definition: isom.h:118
MOVAtom::size
int64_t size
Definition: isom.h:84
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:379
MOVStreamContext::keyframe_count
unsigned int keyframe_count
Definition: isom.h:187
MOVStreamContext::ctts_data
MOVStts * ctts_data
Definition: isom.h:171
MOVStsc
Definition: isom.h:61
AVFormatContext
Format I/O context.
Definition: avformat.h:1129
MOVStreamContext::index_ranges
MOVIndexRange * index_ranges
Definition: isom.h:194
internal.h
MOVTrackExt::stsd_id
unsigned stsd_id
Definition: isom.h:103
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
MOVContext::ignore_editlist
int ignore_editlist
Definition: isom.h:268
MOVDref
Definition: isom.h:73
MOVStreamContext::ctts_count
unsigned int ctts_count
Definition: isom.h:169
ff_mp4_read_descr
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:295
MOVElst
Definition: isom.h:67
MOVContext::movie_display_matrix
int32_t movie_display_matrix[3][3]
display matrix from mvhd
Definition: isom.h:297
MOVDref::nlvl_to
int16_t nlvl_to
Definition: isom.h:79
MOVContext::atom_depth
int atom_depth
Definition: isom.h:281
MOVContext::duration
int64_t duration
duration of the longest track
Definition: isom.h:250
MOVStreamContext::time_offset
int64_t time_offset
time offset of the edit list entries
Definition: isom.h:190
MOVStreamContext::current_index_range
MOVIndexRange * current_index_range
Definition: isom.h:195
MOVStreamContext::timecode_track
int timecode_track
Definition: isom.h:204
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:282
MOVStreamContext::rap_group
MOVSbgp * rap_group
Definition: isom.h:215
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:110
MOVStts
Definition: isom.h:56
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
MOVContext::dv_demux
DVDemuxContext * dv_demux
Definition: isom.h:257
MOVEncryptionIndex::auxiliary_info_default_size
uint8_t auxiliary_info_default_size
Definition: isom.h:122
MOVContext::has_looked_for_mfra
int has_looked_for_mfra
Definition: isom.h:279
MOVFragment::flags
unsigned flags
Definition: isom.h:98
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
MOVContext::handbrake_version
int handbrake_version
Definition: isom.h:264
MOVStreamContext::ctts_sample
int ctts_sample
Definition: isom.h:181
MOVFragmentIndexItem
Definition: isom.h:137
MOVStsc::first
int first
Definition: isom.h:62
MOVStreamContext::stsz_sample_size
unsigned int stsz_sample_size
always contains sample size from stsz atom
Definition: isom.h:183
bps
unsigned bps
Definition: movenc.c:1595
MOVContext::audible_fixed_key
void * audible_fixed_key
Definition: isom.h:287
MOVContext::trex_count
unsigned trex_count
Definition: isom.h:262
avio.h
MOVStreamContext::coll
AVContentLightMetadata * coll
Definition: isom.h:232
MOVDref::path
char * path
Definition: isom.h:75
MOVContext::file_key
uint8_t file_key[20]
Definition: isom.h:283
DVDemuxContext
Definition: dv.c:53
MOVEncryptionIndex::auxiliary_offsets_count
size_t auxiliary_offsets_count
Definition: isom.h:124
MOVFragmentIndexItem::stream_info
MOVFragmentStreamInfo * stream_info
Definition: isom.h:142
MOVStreamContext::chunk_offsets
int64_t * chunk_offsets
Definition: isom.h:164
ff_mp4_obj_type
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
MOVFragmentIndex::item
MOVFragmentIndexItem * item
Definition: isom.h:150
MOVContext::decryption_key_len
int decryption_key_len
Definition: isom.h:295
MOVContext::audible_fixed_key_size
int audible_fixed_key_size
Definition: isom.h:288
MOVDref::nlvl_from
int16_t nlvl_from
Definition: isom.h:79
MOVFragmentStreamInfo::next_trun_dts
int64_t next_trun_dts
Definition: isom.h:132
MOVStreamContext::stsc_index
unsigned int stsc_index
Definition: isom.h:174
MOVIndexRange
Definition: isom.h:153
MOVContext::advanced_editlist
int advanced_editlist
Definition: isom.h:269
MOVStreamContext::time_scale
int time_scale
Definition: isom.h:189
MOVStreamContext::bytes_per_frame
unsigned int bytes_per_frame
Definition: isom.h:196
MOVIndexRange::end
int64_t end
Definition: isom.h:155
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:228
MOVDref::volume
char volume[28]
Definition: isom.h:77
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int duration
Definition: isom.h:58
MOVStreamContext::stps_count
unsigned int stps_count
Definition: isom.h:176
MOVFragment::duration
unsigned duration
Definition: isom.h:96
MOVContext::frag_index
MOVFragmentIndex frag_index
Definition: isom.h:280
ff_codec_movsubtitle_tags
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:75
MOVStreamContext::dref_id
int dref_id
Definition: isom.h:203
MOVContext::mfra_size
uint32_t mfra_size
Definition: isom.h:299
ff_mov_write_chan
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
Definition: isom.c:412
MOVStreamContext::pb
AVIOContext * pb
Definition: isom.h:159
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
MOVFragment::size
unsigned size
Definition: isom.h:97
MOVContext::export_xmp
int export_xmp
Definition: isom.h:274
MOVFragmentStreamInfo::tfdt_dts
int64_t tfdt_dts
Definition: isom.h:131
MOVStreamContext::sample_sizes
int * sample_sizes
Definition: isom.h:185
ff_codec_movdata_tags
const AVCodecTag ff_codec_movdata_tags[]
Definition: isom.c:82
MOVStreamContext::chunk_count
unsigned int chunk_count
Definition: isom.h:163
MOVStreamContext::data_size
int64_t data_size
Definition: isom.h:210
tag
uint32_t tag
Definition: movenc.c:1594
AVStream
Stream structure.
Definition: avformat.h:832
MOVEncryptionIndex::nb_encrypted_samples
unsigned int nb_encrypted_samples
Definition: isom.h:117
MOVStreamContext::stts_data
MOVStts * stts_data
Definition: isom.h:166
AVAES
Definition: aes_internal.h:34
MOVSbgp::index
unsigned int index
Definition: isom.h:111
MOVContext::chapter_tracks
int * chapter_tracks
Definition: isom.h:265
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uint64_t implicit_offset
Definition: isom.h:94
MOVStreamContext::pseudo_stream_id
int pseudo_stream_id
-1 means demux all ids
Definition: isom.h:199
MOVContext::time_scale
int time_scale
Definition: isom.h:249
MOVFragment
Definition: isom.h:89
MOVContext::use_mfra_for
int use_mfra_for
Definition: isom.h:278
MOVContext::enable_drefs
int enable_drefs
Definition: isom.h:296
AVEncryptionInfo
This describes encryption info for a packet.
Definition: encryption_info.h:43
MOVStreamContext::encryption_index
MOVEncryptionIndex * encryption_index
Definition: isom.h:242
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:182
MOVStreamContext::duration_for_fps
int64_t duration_for_fps
Definition: isom.h:218
MOVFragment::moof_offset
uint64_t moof_offset
Definition: isom.h:93
MOVTrackExt::size
unsigned size
Definition: isom.h:105
MOVContext::dv_fctx
AVFormatContext * dv_fctx
Definition: isom.h:258
MOVContext::aax_mode
unsigned int aax_mode
'aax' file has been detected
Definition: isom.h:282
MOVFragmentIndex
Definition: isom.h:145
MOVStreamContext::track_end
int64_t track_end
used for dts generation in fragmented movie files
Definition: isom.h:212
MOVContext::fragment
MOVFragment fragment
current fragment in moof atom
Definition: isom.h:260
MOVDref::type
uint32_t type
Definition: isom.h:74
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unsigned int per_sample_iv_size
Definition: isom.h:240
MOVFragmentIndexItem::nb_stream_info
int nb_stream_info
Definition: isom.h:141
MOVStreamContext::has_sidx
int has_sidx
Definition: isom.h:237
MOVFragmentStreamInfo::id
int id
Definition: isom.h:128
encryption_info.h
MOVStreamContext::pb_is_copied
int pb_is_copied
Definition: isom.h:160
MOVElst::time
int64_t time
Definition: isom.h:69
MOVStreamContext::next_chunk
int next_chunk
Definition: isom.h:162
MOVContext::trak_index
int trak_index
Index of the current 'trak'.
Definition: isom.h:254
mastering_display_metadata.h
MOVContext::itunes_metadata
int itunes_metadata
metadata are itunes style
Definition: isom.h:263
MOVEncryptionIndex::auxiliary_info_sizes
uint8_t * auxiliary_info_sizes
Definition: isom.h:120
MOVFragment::stsd_id
unsigned stsd_id
Definition: isom.h:95
ff_mp4_read_dec_config_descr
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:329
ff_mov_read_stsd_entries
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
Definition: mov.c:2466
MOVStreamContext::stps_data
unsigned * stps_data
partial sync sample for mpeg-2 open gop
Definition: isom.h:177
MOVContext::found_hdlr_mdta
int found_hdlr_mdta
'hdlr' atom with type 'mdta' has been found
Definition: isom.h:253
MOVStreamContext::tmcd_flags
uint32_t tmcd_flags
tmcd track flags
Definition: isom.h:211
int32_t
int32_t
Definition: audioconvert.c:56
MOVAtom::type
uint32_t type
Definition: isom.h:83
MOVFragmentIndexItem::headers_read
int headers_read
Definition: isom.h:139
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:213
MOVDref::filename
char filename[64]
Definition: isom.h:78
MOVStsc::count
int count
Definition: isom.h:63
MOVStts::count
unsigned int count
Definition: isom.h:57
MOVStreamContext::display_matrix
int32_t * display_matrix
Definition: isom.h:227
MOVStreamContext::current_index
int64_t current_index
Definition: isom.h:193
MOVFragmentStreamInfo::index_entry
int index_entry
Definition: isom.h:133
MOVStreamContext::format
uint32_t format
Definition: isom.h:235
MOVContext::bitrates_count
int bitrates_count
Definition: isom.h:276
MOVContext::audible_key
void * audible_key
Definition: isom.h:289
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:197
MOVElst::duration
int64_t duration
Definition: isom.h:68
MOVContext::seek_individually
int seek_individually
Definition: isom.h:271
MOVStreamContext::stts_count
unsigned int stts_count
Definition: isom.h:165
MOVStreamContext::elst_count
unsigned int elst_count
Definition: isom.h:179
AVSphericalMapping
This structure describes how to handle spherical videos, outlining information about projection,...
Definition: spherical.h:82
AVAESCTR
Definition: aes_ctr.c:29
MOVContext::file_iv
uint8_t file_iv[20]
Definition: isom.h:284
MOVStreamContext::default_encrypted_sample
AVEncryptionInfo * default_encrypted_sample
Definition: isom.h:241
MOVContext::next_root_atom
int64_t next_root_atom
offset of the next root atom
Definition: isom.h:272
MOVContext::meta_keys_count
unsigned meta_keys_count
Definition: isom.h:256
MOVStreamContext::palette
uint32_t palette[256]
Definition: isom.h:208
MOVContext::have_read_mfra_size
int have_read_mfra_size
Definition: isom.h:298
MOVFragment::track_id
unsigned track_id
Definition: isom.h:91
MOVContext::ignore_chapters
int ignore_chapters
Definition: isom.h:270
MOVStreamContext::ffindex
int ffindex
AVStream index.
Definition: isom.h:161