FFmpeg: libavformat/isom.h Source File

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 
30 #include "libavutil/mastering_display_metadata.h"
31 #include "libavutil/spherical.h"
32 #include "libavutil/stereo3d.h"
33 
34 #include "avio.h"
35 #include "internal.h"
36 #include "dv.h"
37 
38 /* isom.c */
39 extern const AVCodecTag ff_mp4_obj_type[];
40 extern const AVCodecTag ff_codec_movvideo_tags[];
41 extern const AVCodecTag ff_codec_movaudio_tags[];
42 extern const AVCodecTag ff_codec_movsubtitle_tags[];
43 
44 int ff_mov_iso639_to_lang(const char lang[4], int mp4);
45 int ff_mov_lang_to_iso639(unsigned code, char to[4]);
46 
47 struct AVAESCTR;
48 
49 /* the QuickTime file format is quite convoluted...
50  * it has lots of index tables, each indexing something in another one...
51  * Here we just use what is needed to read the chunks
52  */
53 
54  typedef struct MOVStts {
55   unsigned int count;
56   int duration;
57 } MOVStts;
58 
59  typedef struct MOVStsc {
60   int first;
61   int count;
62   int id;
63 } MOVStsc;
64 
65  typedef struct MOVElst {
66   int64_t duration;
67   int64_t time;
68   float rate;
69 } MOVElst;
70 
71  typedef struct MOVDref {
72   uint32_t type;
73   char *path;
74   char *dir;
75   char volume[28];
76   char filename[64];
77   int16_t nlvl_to, nlvl_from;
78 } MOVDref;
79 
80  typedef struct MOVAtom {
81   uint32_t type;
82   int64_t size; /* total size (excluding the size and type fields) */
83 } MOVAtom;
84 
85 struct MOVParseTableEntry;
86 
87  typedef struct MOVFragment {
88   unsigned track_id;
89   uint64_t base_data_offset;
90   uint64_t moof_offset;
91   uint64_t implicit_offset;
92   unsigned stsd_id;
93   unsigned duration;
94   unsigned size;
95   unsigned flags;
96 } MOVFragment;
97 
98  typedef struct MOVTrackExt {
99   unsigned track_id;
100   unsigned stsd_id;
101   unsigned duration;
102   unsigned size;
103   unsigned flags;
104 } MOVTrackExt;
105 
106  typedef struct MOVSbgp {
107   unsigned int count;
108   unsigned int index;
109 } MOVSbgp;
110 
111  typedef struct MOVFragmentStreamInfo {
112   int id;
113   int64_t sidx_pts;
114   int64_t first_tfra_pts;
115   int64_t tfdt_dts;
116   int index_entry;
117 } MOVFragmentStreamInfo;
118 
119  typedef struct MOVFragmentIndexItem {
120   int64_t moof_offset;
121   int headers_read;
122   int current;
123   int nb_stream_info;
124   MOVFragmentStreamInfo * stream_info;
125 } MOVFragmentIndexItem;
126 
127  typedef struct MOVFragmentIndex {
128   int allocated_size;
129   int complete;
130   int current;
131   int nb_items;
132   MOVFragmentIndexItem * item;
133 } MOVFragmentIndex;
134 
135  typedef struct MOVIndexRange {
136   int64_t start;
137   int64_t end;
138 } MOVIndexRange;
139 
140  typedef struct MOVStreamContext {
141   AVIOContext *pb;
142   int pb_is_copied;
143   int ffindex; ///< AVStream index
144   int next_chunk;
145   unsigned int chunk_count;
146   int64_t *chunk_offsets;
147   unsigned int stts_count;
148   MOVStts *stts_data;
149   unsigned int ctts_count;
150   unsigned int ctts_allocated_size;
151   MOVStts *ctts_data;
152   unsigned int stsc_count;
153   MOVStsc *stsc_data;
154   unsigned int stsc_index;
155   int stsc_sample;
156   unsigned int stps_count;
157   unsigned *stps_data; ///< partial sync sample for mpeg-2 open gop
158   MOVElst *elst_data;
159   unsigned int elst_count;
160   int ctts_index;
161   int ctts_sample;
162   unsigned int sample_size; ///< may contain value calculated from stsd or value from stsz atom
163   unsigned int stsz_sample_size; ///< always contains sample size from stsz atom
164   unsigned int sample_count;
165   int *sample_sizes;
166   int keyframe_absent;
167   unsigned int keyframe_count;
168   int *keyframes;
169   int time_scale;
170   int64_t time_offset; ///< time offset of the edit list entries
171   int64_t min_corrected_pts; ///< minimum Composition time shown by the edits excluding empty edits.
172   int current_sample;
173   int64_t current_index;
174   MOVIndexRange* index_ranges;
175   MOVIndexRange* current_index_range;
176   unsigned int bytes_per_frame;
177   unsigned int samples_per_frame;
178   int dv_audio_container;
179   int pseudo_stream_id; ///< -1 means demux all ids
180   int16_t audio_cid; ///< stsd audio compression id
181   unsigned drefs_count;
182   MOVDref *drefs;
183   int dref_id;
184   int timecode_track;
185   int width; ///< tkhd width
186   int height; ///< tkhd height
187   int dts_shift; ///< dts shift when ctts is negative
188   uint32_t palette[256];
189   int has_palette;
190   int64_t data_size;
191   uint32_t tmcd_flags; ///< tmcd track flags
192   int64_t track_end; ///< used for dts generation in fragmented movie files
193   int start_pad; ///< amount of samples to skip due to enc-dec delay
194   unsigned int rap_group_count;
195   MOVSbgp *rap_group;
196 
197   int nb_frames_for_fps;
198   int64_t duration_for_fps;
199 
200  /** extradata array (and size) for multiple stsd */
201   uint8_t **extradata;
202   int *extradata_size;
203   int last_stsd_index;
204   int stsd_count;
205 
206   int32_t *display_matrix;
207   AVStereo3D *stereo3d;
208   AVSphericalMapping *spherical;
209   size_t spherical_size;
210   AVMasteringDisplayMetadata *mastering;
211   AVContentLightMetadata *coll;
212   size_t coll_size;
213 
214   uint32_t format;
215 
216   int has_sidx; // If there is an sidx entry for this stream.
217  struct {
218   int use_subsamples;
219   uint8_t* auxiliary_info;
220   uint8_t* auxiliary_info_end;
221   uint8_t* auxiliary_info_pos;
222   uint8_t auxiliary_info_default_size;
223   uint8_t* auxiliary_info_sizes;
224   size_t auxiliary_info_sizes_count;
225   int64_t auxiliary_info_index;
226   struct AVAESCTR* aes_ctr;
227  } cenc;
228 } MOVStreamContext;
229 
230  typedef struct MOVContext {
231   const AVClass *class; ///< class for private options
232   AVFormatContext *fc;
233   int time_scale;
234   int64_t duration; ///< duration of the longest track
235   int found_moov; ///< 'moov' atom has been found
236   int found_mdat; ///< 'mdat' atom has been found
237   int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found
238   int trak_index; ///< Index of the current 'trak'
239   char **meta_keys;
240   unsigned meta_keys_count;
241   DVDemuxContext *dv_demux;
242   AVFormatContext *dv_fctx;
243   int isom; ///< 1 if file is ISO Media (mp4/3gp)
244   MOVFragment fragment; ///< current fragment in moof atom
245   MOVTrackExt *trex_data;
246   unsigned trex_count;
247   int itunes_metadata; ///< metadata are itunes style
248   int handbrake_version;
249   int *chapter_tracks;
250   unsigned int nb_chapter_tracks;
251   int use_absolute_path;
252   int ignore_editlist;
253   int advanced_editlist;
254   int ignore_chapters;
255   int seek_individually;
256   int64_t next_root_atom; ///< offset of the next root atom
257   int export_all;
258   int export_xmp;
259   int *bitrates; ///< bitrates read before streams creation
260   int bitrates_count;
261   int moov_retry;
262   int use_mfra_for;
263   int has_looked_for_mfra;
264   MOVFragmentIndex frag_index;
265   int atom_depth;
266   unsigned int aax_mode; ///< 'aax' file has been detected
267   uint8_t file_key[20];
268   uint8_t file_iv[20];
269   void *activation_bytes;
270   int activation_bytes_size;
271   void *audible_fixed_key;
272   int audible_fixed_key_size;
273   struct AVAES *aes_decrypt;
274   uint8_t *decryption_key;
275   int decryption_key_len;
276   int enable_drefs;
277   int32_t movie_display_matrix[3][3]; ///< display matrix from mvhd
278 } MOVContext;
279 
280 int ff_mp4_read_descr_len(AVIOContext *pb);
281 int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag);
282 int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb);
283 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id);
284 
285  #define MP4ODescrTag 0x01
286  #define MP4IODescrTag 0x02
287  #define MP4ESDescrTag 0x03
288  #define MP4DecConfigDescrTag 0x04
289  #define MP4DecSpecificDescrTag 0x05
290  #define MP4SLDescrTag 0x06
291 
292  #define MOV_TFHD_BASE_DATA_OFFSET 0x01
293  #define MOV_TFHD_STSD_ID 0x02
294  #define MOV_TFHD_DEFAULT_DURATION 0x08
295  #define MOV_TFHD_DEFAULT_SIZE 0x10
296  #define MOV_TFHD_DEFAULT_FLAGS 0x20
297  #define MOV_TFHD_DURATION_IS_EMPTY 0x010000
298  #define MOV_TFHD_DEFAULT_BASE_IS_MOOF 0x020000
299 
300  #define MOV_TRUN_DATA_OFFSET 0x01
301  #define MOV_TRUN_FIRST_SAMPLE_FLAGS 0x04
302  #define MOV_TRUN_SAMPLE_DURATION 0x100
303  #define MOV_TRUN_SAMPLE_SIZE 0x200
304  #define MOV_TRUN_SAMPLE_FLAGS 0x400
305  #define MOV_TRUN_SAMPLE_CTS 0x800
306 
307  #define MOV_FRAG_SAMPLE_FLAG_DEGRADATION_PRIORITY_MASK 0x0000ffff
308  #define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC 0x00010000
309  #define MOV_FRAG_SAMPLE_FLAG_PADDING_MASK 0x000e0000
310  #define MOV_FRAG_SAMPLE_FLAG_REDUNDANCY_MASK 0x00300000
311  #define MOV_FRAG_SAMPLE_FLAG_DEPENDED_MASK 0x00c00000
312  #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_MASK 0x03000000
313 
314  #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO 0x02000000
315  #define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES 0x01000000
316 
317  #define MOV_TKHD_FLAG_ENABLED 0x0001
318  #define MOV_TKHD_FLAG_IN_MOVIE 0x0002
319  #define MOV_TKHD_FLAG_IN_PREVIEW 0x0004
320  #define MOV_TKHD_FLAG_IN_POSTER 0x0008
321 
322  #define MOV_SAMPLE_DEPENDENCY_UNKNOWN 0x0
323  #define MOV_SAMPLE_DEPENDENCY_YES 0x1
324  #define MOV_SAMPLE_DEPENDENCY_NO 0x2
325 
326 
327  #define TAG_IS_AVCI(tag) \
328  ((tag) == MKTAG('a', 'i', '5', 'p') || \
329  (tag) == MKTAG('a', 'i', '5', 'q') || \
330  (tag) == MKTAG('a', 'i', '5', '2') || \
331  (tag) == MKTAG('a', 'i', '5', '3') || \
332  (tag) == MKTAG('a', 'i', '5', '5') || \
333  (tag) == MKTAG('a', 'i', '5', '6') || \
334  (tag) == MKTAG('a', 'i', '1', 'p') || \
335  (tag) == MKTAG('a', 'i', '1', 'q') || \
336  (tag) == MKTAG('a', 'i', '1', '2') || \
337  (tag) == MKTAG('a', 'i', '1', '3') || \
338  (tag) == MKTAG('a', 'i', '1', '5') || \
339  (tag) == MKTAG('a', 'i', '1', '6') || \
340  (tag) == MKTAG('a', 'i', 'v', 'x') || \
341  (tag) == MKTAG('A', 'V', 'i', 'n'))
342 
343 
344 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb);
345 
346 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries);
347 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout);
348 
349  #define FF_MOV_FLAG_MFRA_AUTO -1
350  #define FF_MOV_FLAG_MFRA_DTS 1
351  #define FF_MOV_FLAG_MFRA_PTS 2
352 
353 /**
354  * Compute codec id for 'lpcm' tag.
355  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
356  */
357  static inline enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
358 {
359  /* lpcm flags:
360  * 0x1 = float
361  * 0x2 = big-endian
362  * 0x4 = signed
363  */
364  return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
365 }
366 
367 #endif /* AVFORMAT_ISOM_H */
MOVContext::itunes_metadata
int itunes_metadata
metadata are itunes style
Definition: isom.h:247
MOVContext::bitrates
int * bitrates
bitrates read before streams creation
Definition: isom.h:259
MOVStreamContext::current_index
int64_t current_index
Definition: isom.h:173
MOVFragmentIndexItem::moof_offset
int64_t moof_offset
Definition: isom.h:120
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
avio.h
Buffered I/O operations.
MOVStreamContext::tmcd_flags
uint32_t tmcd_flags
tmcd track flags
Definition: isom.h:191
ff_mp4_obj_type
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
MOVStreamContext::auxiliary_info_end
uint8_t * auxiliary_info_end
Definition: isom.h:220
MOVStreamContext::rap_group_count
unsigned int rap_group_count
Definition: isom.h:194
MOVStreamContext::elst_count
unsigned int elst_count
Definition: isom.h:159
MOVContext::trex_data
MOVTrackExt * trex_data
Definition: isom.h:245
MOVContext::export_all
int export_all
Definition: isom.h:257
MOVIndexRange::end
int64_t end
Definition: isom.h:137
MOVFragment::track_id
unsigned track_id
Definition: isom.h:88
MOVFragmentIndexItem::headers_read
int headers_read
Definition: isom.h:121
MOVStreamContext::format
uint32_t format
Definition: isom.h:214
MOVStreamContext::samples_per_frame
unsigned int samples_per_frame
Definition: isom.h:177
MOVStreamContext::dv_audio_container
int dv_audio_container
Definition: isom.h:178
MOVStts
Definition: isom.h:54
MOVElst::rate
float rate
Definition: isom.h:68
MOVFragment::base_data_offset
uint64_t base_data_offset
Definition: isom.h:89
MOVElst::duration
int64_t duration
Definition: isom.h:66
MOVStreamContext::spherical_size
size_t spherical_size
Definition: isom.h:209
MOVStreamContext::ctts_allocated_size
unsigned int ctts_allocated_size
Definition: isom.h:150
MOVStreamContext::stsc_count
unsigned int stsc_count
Definition: isom.h:152
MOVStreamContext::has_palette
int has_palette
Definition: isom.h:189
MOVFragmentIndex::allocated_size
int allocated_size
Definition: isom.h:128
MOVStreamContext::mastering
AVMasteringDisplayMetadata * mastering
Definition: isom.h:210
AVAESCTR
Definition: aes_ctr.c:29
MOVContext::decryption_key
uint8_t * decryption_key
Definition: isom.h:274
MOVContext
Definition: isom.h:230
MOVContext::ignore_chapters
int ignore_chapters
Definition: isom.h:254
MOVContext::activation_bytes
void * activation_bytes
Definition: isom.h:269
ff_mp4_read_dec_config_descr
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:498
MOVStreamContext::audio_cid
int16_t audio_cid
stsd audio compression id
Definition: isom.h:180
MOVContext::meta_keys
char ** meta_keys
Definition: isom.h:239
MOVStreamContext::height
int height
tkhd height
Definition: isom.h:186
MOVAtom::type
uint32_t type
Definition: isom.h:81
MOVStreamContext::elst_data
MOVElst * elst_data
Definition: isom.h:158
MOVStreamContext::stsc_data
MOVStsc * stsc_data
Definition: isom.h:153
MOVFragmentIndex::nb_items
int nb_items
Definition: isom.h:131
MOVStreamContext::ctts_index
int ctts_index
Definition: isom.h:160
MOVFragmentIndex::complete
int complete
Definition: isom.h:129
MOVTrackExt::stsd_id
unsigned stsd_id
Definition: isom.h:100
MOVStreamContext::spherical
AVSphericalMapping * spherical
Definition: isom.h:208
MOVContext::found_moov
int found_moov
'moov' atom has been found
Definition: isom.h:235
MOVTrackExt::flags
unsigned flags
Definition: isom.h:103
MOVContext::isom
int isom
1 if file is ISO Media (mp4/3gp)
Definition: isom.h:243
MOVContext::found_mdat
int found_mdat
'mdat' atom has been found
Definition: isom.h:236
MOVStreamContext::width
int width
tkhd width
Definition: isom.h:185
MOVStreamContext::drefs_count
unsigned drefs_count
Definition: isom.h:181
AVFormatContext
Format I/O context.
Definition: avformat.h:1342
ff_codec_movvideo_tags
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:75
MOVDref::filename
char filename[64]
Definition: isom.h:76
MOVStreamContext::drefs
MOVDref * drefs
Definition: isom.h:182
ff_codec_movaudio_tags
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom.c:312
uint8_t
uint8_t
Definition: audio_convert.c:194
MOVStsc::first
int first
Definition: isom.h:60
MOVStreamContext::auxiliary_info
uint8_t * auxiliary_info
Definition: isom.h:219
MOVStreamContext::coll_size
size_t coll_size
Definition: isom.h:212
ff_mp4_read_descr_len
int ff_mp4_read_descr_len(AVIOContext *pb)
Definition: isom.c:451
AVStereo3D
Stereo 3D type: this structure describes how two videos are packed within a single video surface...
Definition: stereo3d.h:176
MOVStreamContext::sample_count
unsigned int sample_count
Definition: isom.h:164
MOVStsc::count
int count
Definition: isom.h:61
MOVStreamContext::dts_shift
int dts_shift
dts shift when ctts is negative
Definition: isom.h:187
MOVStreamContext::auxiliary_info_pos
uint8_t * auxiliary_info_pos
Definition: isom.h:221
MOVSbgp::count
unsigned int count
Definition: isom.h:107
MOVDref::nlvl_to
int16_t nlvl_to
Definition: isom.h:77
MOVDref::volume
char volume[28]
Definition: isom.h:75
MOVStreamContext::stsd_count
int stsd_count
Definition: isom.h:204
MOVContext::activation_bytes_size
int activation_bytes_size
Definition: isom.h:270
flags
static int flags
Definition: log.c:55
tag
uint32_t tag
Definition: movenc.c:1455
MOVStreamContext::nb_frames_for_fps
int nb_frames_for_fps
Definition: isom.h:197
MOVStreamContext::aes_ctr
struct AVAESCTR * aes_ctr
Definition: isom.h:226
ff_codec_movsubtitle_tags
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:369
MOVStreamContext::current_sample
int current_sample
Definition: isom.h:172
MOVContext::movie_display_matrix
int32_t movie_display_matrix[3][3]
display matrix from mvhd
Definition: isom.h:277
MOVTrackExt
Definition: isom.h:98
MOVTrackExt::track_id
unsigned track_id
Definition: isom.h:99
to
const char * to
Definition: webvttdec.c:34
MOVStreamContext::time_offset
int64_t time_offset
time offset of the edit list entries
Definition: isom.h:170
MOVStreamContext::keyframe_count
unsigned int keyframe_count
Definition: isom.h:167
MOVStreamContext::index_ranges
MOVIndexRange * index_ranges
Definition: isom.h:174
MOVFragmentStreamInfo::first_tfra_pts
int64_t first_tfra_pts
Definition: isom.h:114
MOVStreamContext::extradata_size
int * extradata_size
Definition: isom.h:202
AVContentLightMetadata
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
Definition: mastering_display_metadata.h:98
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
MOVStreamContext::ctts_count
unsigned int ctts_count
Definition: isom.h:149
MOVFragmentStreamInfo::tfdt_dts
int64_t tfdt_dts
Definition: isom.h:115
MOVStreamContext::stsc_sample
int stsc_sample
Definition: isom.h:155
MOVContext::atom_depth
int atom_depth
Definition: isom.h:265
MOVStreamContext::current_index_range
MOVIndexRange * current_index_range
Definition: isom.h:175
MOVStreamContext::keyframes
int * keyframes
Definition: isom.h:168
MOVContext::fc
AVFormatContext * fc
Definition: isom.h:232
MOVContext::handbrake_version
int handbrake_version
Definition: isom.h:248
MOVStreamContext::ctts_sample
int ctts_sample
Definition: isom.h:161
MOVStreamContext::keyframe_absent
int keyframe_absent
Definition: isom.h:166
MOVFragmentIndex::current
int current
Definition: isom.h:130
MOVDref::nlvl_from
int16_t nlvl_from
Definition: isom.h:77
MOVContext::audible_fixed_key
void * audible_fixed_key
Definition: isom.h:271
MOVStreamContext::min_corrected_pts
int64_t min_corrected_pts
minimum Composition time shown by the edits excluding empty edits.
Definition: isom.h:171
MOVFragmentIndexItem::nb_stream_info
int nb_stream_info
Definition: isom.h:123
MOVStreamContext::use_subsamples
int use_subsamples
Definition: isom.h:218
MOVStreamContext::coll
AVContentLightMetadata * coll
Definition: isom.h:211
MOVContext::file_key
uint8_t file_key[20]
Definition: isom.h:267
MOVContext::aes_decrypt
struct AVAES * aes_decrypt
Definition: isom.h:273
fc
static const uint16_t fc[]
Definition: dcaenc.h:43
MOVStreamContext::auxiliary_info_default_size
uint8_t auxiliary_info_default_size
Definition: isom.h:222
spherical.h
Spherical video.
MOVFragmentIndexItem::stream_info
MOVFragmentStreamInfo * stream_info
Definition: isom.h:124
MOVDref::dir
char * dir
Definition: isom.h:74
MOVStsc::id
int id
Definition: isom.h:62
MOVContext::decryption_key_len
int decryption_key_len
Definition: isom.h:275
int32_t
int32_t
Definition: audio_convert.c:194
MOVContext::audible_fixed_key_size
int audible_fixed_key_size
Definition: isom.h:272
MOVContext::advanced_editlist
int advanced_editlist
Definition: isom.h:253
MOVDref::path
char * path
Definition: isom.h:73
MOVStreamContext::time_scale
int time_scale
Definition: isom.h:169
MOVSbgp
Definition: isom.h:106
MOVFragment::moof_offset
uint64_t moof_offset
Definition: isom.h:90
MOVStreamContext::ctts_data
MOVStts * ctts_data
Definition: isom.h:151
MOVTrackExt::size
unsigned size
Definition: isom.h:102
ff_mov_write_chan
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
Definition: isom.c:626
MOVContext::ignore_editlist
int ignore_editlist
Definition: isom.h:252
MOVFragmentIndex::item
MOVFragmentIndexItem * item
Definition: isom.h:132
MOVStreamContext::chunk_offsets
int64_t * chunk_offsets
Definition: isom.h:146
MOVSbgp::index
unsigned int index
Definition: isom.h:108
MOVContext::frag_index
MOVFragmentIndex frag_index
Definition: isom.h:264
ff_mov_read_esds
int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
Definition: mov_esds.c:23
MOVStreamContext::auxiliary_info_sizes_count
size_t auxiliary_info_sizes_count
Definition: isom.h:224
MOVContext::duration
int64_t duration
duration of the longest track
Definition: isom.h:234
AVStream
Stream structure.
Definition: avformat.h:873
MOVTrackExt::duration
unsigned duration
Definition: isom.h:101
MOVContext::dv_demux
DVDemuxContext * dv_demux
Definition: isom.h:241
MOVStreamContext::timecode_track
int timecode_track
Definition: isom.h:184
MOVStreamContext::sample_sizes
int * sample_sizes
Definition: isom.h:165
MOVFragment::duration
unsigned duration
Definition: isom.h:93
MOVStreamContext::rap_group
MOVSbgp * rap_group
Definition: isom.h:195
MOVStts::duration
int duration
Definition: isom.h:56
MOVStreamContext::auxiliary_info_index
int64_t auxiliary_info_index
Definition: isom.h:225
MOVContext::chapter_tracks
int * chapter_tracks
Definition: isom.h:249
MOVStreamContext::stsz_sample_size
unsigned int stsz_sample_size
always contains sample size from stsz atom
Definition: isom.h:163
mastering_display_metadata.h
MOVContext::trex_count
unsigned trex_count
Definition: isom.h:246
MOVContext::enable_drefs
int enable_drefs
Definition: isom.h:276
MOVStreamContext::data_size
int64_t data_size
Definition: isom.h:190
MOVContext::has_looked_for_mfra
int has_looked_for_mfra
Definition: isom.h:263
MOVDref::type
uint32_t type
Definition: isom.h:72
MOVStts::count
unsigned int count
Definition: isom.h:55
MOVStreamContext::stts_data
MOVStts * stts_data
Definition: isom.h:148
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
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:3129
MOVContext::aax_mode
unsigned int aax_mode
'aax' file has been detected
Definition: isom.h:266
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
MOVContext::fragment
MOVFragment fragment
current fragment in moof atom
Definition: isom.h:244
MOVStreamContext::track_end
int64_t track_end
used for dts generation in fragmented movie files
Definition: isom.h:192
MOVAtom
Definition: isom.h:80
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:357
MOVContext::use_mfra_for
int use_mfra_for
Definition: isom.h:262
MOVStreamContext::cenc
struct MOVStreamContext::@222 cenc
MOVElst::time
int64_t time
Definition: isom.h:67
MOVStreamContext::pb_is_copied
int pb_is_copied
Definition: isom.h:142
ff_mov_lang_to_iso639
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:429
AVSphericalMapping
This structure describes how to handle spherical videos, outlining information about projection...
Definition: spherical.h:82
ff_mov_read_stsd_entries
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
Definition: mov.c:2444
MOVStreamContext::next_chunk
int next_chunk
Definition: isom.h:144
MOVContext::dv_fctx
AVFormatContext * dv_fctx
Definition: isom.h:242
MOVStreamContext::stsc_index
unsigned int stsc_index
Definition: isom.h:154
ff_mp4_read_descr
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:464
MOVFragment::implicit_offset
uint64_t implicit_offset
Definition: isom.h:91
MOVStreamContext::stereo3d
AVStereo3D * stereo3d
Definition: isom.h:207
MOVStreamContext::stps_data
unsigned * stps_data
partial sync sample for mpeg-2 open gop
Definition: isom.h:157
MOVStreamContext::auxiliary_info_sizes
uint8_t * auxiliary_info_sizes
Definition: isom.h:223
ff_mov_iso639_to_lang
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:402
MOVFragmentStreamInfo::sidx_pts
int64_t sidx_pts
Definition: isom.h:113
DVDemuxContext
Definition: dv.c:43
MOVStreamContext::start_pad
int start_pad
amount of samples to skip due to enc-dec delay
Definition: isom.h:193
MOVContext::trak_index
int trak_index
Index of the current 'trak'.
Definition: isom.h:238
MOVStreamContext::display_matrix
int32_t * display_matrix
Definition: isom.h:206
MOVStreamContext::pb
AVIOContext * pb
Definition: isom.h:141
MOVStreamContext::bytes_per_frame
unsigned int bytes_per_frame
Definition: isom.h:176
MOVFragment::flags
unsigned flags
Definition: isom.h:95
MOVContext::bitrates_count
int bitrates_count
Definition: isom.h:260
MOVAtom::size
int64_t size
Definition: isom.h:82
MOVContext::export_xmp
int export_xmp
Definition: isom.h:258
MOVContext::seek_individually
int seek_individually
Definition: isom.h:255
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
MOVStreamContext::stps_count
unsigned int stps_count
Definition: isom.h:156
MOVStreamContext::chunk_count
unsigned int chunk_count
Definition: isom.h:145
stereo3d.h
Stereoscopic video.
MOVStreamContext::dref_id
int dref_id
Definition: isom.h:183
bps
unsigned bps
Definition: movenc.c:1456
MOVIndexRange::start
int64_t start
Definition: isom.h:136
MOVContext::meta_keys_count
unsigned meta_keys_count
Definition: isom.h:240
MOVStreamContext::palette
uint32_t palette[256]
Definition: isom.h:188
MOVFragment::stsd_id
unsigned stsd_id
Definition: isom.h:92
MOVStreamContext::stts_count
unsigned int stts_count
Definition: isom.h:147
MOVStreamContext::sample_size
unsigned int sample_size
may contain value calculated from stsd or value from stsz atom
Definition: isom.h:162
MOVFragment
Definition: isom.h:87
MOVContext::file_iv
uint8_t file_iv[20]
Definition: isom.h:268
MOVContext::next_root_atom
int64_t next_root_atom
offset of the next root atom
Definition: isom.h:256
MOVStreamContext::last_stsd_index
int last_stsd_index
Definition: isom.h:203
MOVContext::nb_chapter_tracks
unsigned int nb_chapter_tracks
Definition: isom.h:250
MOVContext::time_scale
int time_scale
Definition: isom.h:233
ff_mp4_parse_es_descr
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:473
MOVElst
Definition: isom.h:65
MOVStreamContext::pseudo_stream_id
int pseudo_stream_id
-1 means demux all ids
Definition: isom.h:179
MOVStreamContext::ffindex
int ffindex
AVStream index.
Definition: isom.h:143
MOVStreamContext::extradata
uint8_t ** extradata
extradata array (and size) for multiple stsd
Definition: isom.h:201
MOVContext::use_absolute_path
int use_absolute_path
Definition: isom.h:251
MOVFragment::size
unsigned size
Definition: isom.h:94
MOVStreamContext::duration_for_fps
int64_t duration_for_fps
Definition: isom.h:198
MOVContext::moov_retry
int moov_retry
Definition: isom.h:261
MOVContext::found_hdlr_mdta
int found_hdlr_mdta
'hdlr' atom with type 'mdta' has been found
Definition: isom.h:237
MOVStsc
Definition: isom.h:59
MOVStreamContext::has_sidx
int has_sidx
Definition: isom.h:216
MOVDref
Definition: isom.h:71
Generated on Sun May 13 2018 02:04:05 for FFmpeg by   doxygen 1.8.6

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