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ffmpeg.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef FFMPEG_H
20 #define FFMPEG_H
21 
22 #include "config.h"
23 
24 #include <stdint.h>
25 #include <stdio.h>
26 #include <signal.h>
27 
28 #if HAVE_PTHREADS
29 #include <pthread.h>
30 #endif
31 
32 #include "cmdutils.h"
33 
34 #include "libavformat/avformat.h"
35 #include "libavformat/avio.h"
36 
37 #include "libavcodec/avcodec.h"
38 
39 #include "libavfilter/avfilter.h"
40 
41 #include "libavutil/avutil.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/eval.h"
44 #include "libavutil/fifo.h"
45 #include "libavutil/pixfmt.h"
46 #include "libavutil/rational.h"
48 
50 
51 #define VSYNC_AUTO -1
52 #define VSYNC_PASSTHROUGH 0
53 #define VSYNC_CFR 1
54 #define VSYNC_VFR 2
55 #define VSYNC_VSCFR 0xfe
56 #define VSYNC_DROP 0xff
57 
58 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
59 
60 enum HWAccelID {
69 };
70 
71 typedef struct HWAccel {
72  const char *name;
73  int (*init)(AVCodecContext *s);
74  enum HWAccelID id;
76 } HWAccel;
77 
78 /* select an input stream for an output stream */
79 typedef struct StreamMap {
80  int disabled; /* 1 is this mapping is disabled by a negative map */
85  char *linklabel; /* name of an output link, for mapping lavfi outputs */
86 } StreamMap;
87 
88 typedef struct {
89  int file_idx, stream_idx, channel_idx; // input
90  int ofile_idx, ostream_idx; // output
92 
93 typedef struct OptionsContext {
95 
96  /* input/output options */
97  int64_t start_time;
98  int64_t start_time_eof;
100  const char *format;
101 
114 
115  /* input options */
117  int loop;
118  int rate_emu;
121 
134 
135  /* output options */
138  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
139  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
143  const char **attachments;
145 
147 
148  int64_t recording_time;
149  int64_t stop_time;
150  uint64_t limit_filesize;
151  float mux_preload;
153  int shortest;
154 
159 
160  /* indexed by output file stream index */
163 
211  int nb_pass;
217  int nb_apad;
225 
226 typedef struct InputFilter {
228  struct InputStream *ist;
231 } InputFilter;
232 
233 typedef struct OutputFilter {
235  struct OutputStream *ost;
238 
239  /* temporary storage until stream maps are processed */
242 } OutputFilter;
243 
244 typedef struct FilterGraph {
245  int index;
246  const char *graph_desc;
247 
250 
255 } FilterGraph;
256 
257 typedef struct InputStream {
260  int discard; /* true if stream data should be discarded */
262  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
263 #define DECODING_FOR_OST 1
264 #define DECODING_FOR_FILTER 2
265 
269  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
270 
271  int64_t start; /* time when read started */
272  /* predicted dts of the next packet read for this stream or (when there are
273  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
274  int64_t next_dts;
275  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
276 
277  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
278  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
280 
282 
283  int64_t min_pts; /* pts with the smallest value in a current stream */
284  int64_t max_pts; /* pts with the higher value in a current stream */
285  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
286 
287  double ts_scale;
291  AVRational framerate; /* framerate forced with -r */
294 
299 
304 
306  struct { /* previous decoded subtitle and related variables */
308  int ret;
310  } prev_sub;
311 
312  struct sub2video {
313  int64_t last_pts;
314  int64_t end_pts;
316  int w, h;
317  } sub2video;
318 
319  int dr1;
320 
321  /* decoded data from this stream goes into all those filters
322  * currently video and audio only */
325 
327 
328  /* hwaccel options */
332 
333  /* hwaccel context */
335  void *hwaccel_ctx;
342 
343  /* stats */
344  // combined size of all the packets read
345  uint64_t data_size;
346  /* number of packets successfully read for this stream */
347  uint64_t nb_packets;
348  // number of frames/samples retrieved from the decoder
349  uint64_t frames_decoded;
350  uint64_t samples_decoded;
351 } InputStream;
352 
353 typedef struct InputFile {
355  int eof_reached; /* true if eof reached */
356  int eagain; /* true if last read attempt returned EAGAIN */
357  int ist_index; /* index of first stream in input_streams */
358  int loop; /* set number of times input stream should be looped */
359  int64_t duration; /* actual duration of the longest stream in a file
360  at the moment when looping happens */
361  AVRational time_base; /* time base of the duration */
363 
364  int64_t ts_offset;
365  int64_t last_ts;
366  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
368  int64_t recording_time;
369  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
370  from ctx.nb_streams if new streams appear during av_read_frame() */
371  int nb_streams_warn; /* number of streams that the user was warned of */
372  int rate_emu;
374 
375 #if HAVE_PTHREADS
376  AVThreadMessageQueue *in_thread_queue;
377  pthread_t thread; /* thread reading from this file */
378  int non_blocking; /* reading packets from the thread should not block */
379  int joined; /* the thread has been joined */
380  int thread_queue_size; /* maximum number of queued packets */
381 #endif
382 } InputFile;
383 
391 };
392 
393 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
394 
395 extern const char *const forced_keyframes_const_names[];
396 
397 typedef enum {
400 } OSTFinished ;
401 
402 typedef struct OutputStream {
403  int file_index; /* file index */
404  int index; /* stream index in the output file */
405  int source_index; /* InputStream index */
406  AVStream *st; /* stream in the output file */
407  int encoding_needed; /* true if encoding needed for this stream */
409  /* input pts and corresponding output pts
410  for A/V sync */
411  struct InputStream *sync_ist; /* input stream to sync against */
412  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
413  /* pts of the first frame encoded for this stream, used for limiting
414  * recording time */
415  int64_t first_pts;
416  /* dts of the last packet sent to the muxer */
417  int64_t last_mux_dts;
421  int64_t max_frames;
426 
427  void *hwaccel_ctx;
428 
429  /* video only */
431  int is_cfr;
435 
437 
438  /* forced key frames */
439  int64_t *forced_kf_pts;
445 
446  /* audio only */
447  int *audio_channels_map; /* list of the channels id to pick from the source stream */
448  int audio_channels_mapped; /* number of channels in audio_channels_map */
449 
451  FILE *logfile;
452 
454  char *avfilter;
455  char *filters; ///< filtergraph associated to the -filter option
456  char *filters_script; ///< filtergraph script associated to the -filter_script option
457 
462  char *apad;
463  OSTFinished finished; /* no more packets should be written for this stream */
464  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
466  const char *attachment_filename;
469  char *disposition;
470 
472 
474 
475  /* stats */
476  // combined size of all the packets written
477  uint64_t data_size;
478  // number of packets send to the muxer
479  uint64_t packets_written;
480  // number of frames/samples sent to the encoder
481  uint64_t frames_encoded;
482  uint64_t samples_encoded;
483 
484  /* packet quality factor */
485  int quality;
486 
487  /* packet picture type */
489 
490  /* frame encode sum of squared error values */
491  int64_t error[4];
492 } OutputStream;
493 
494 typedef struct OutputFile {
497  int ost_index; /* index of the first stream in output_streams */
498  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
499  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
500  uint64_t limit_filesize; /* filesize limit expressed in bytes */
501 
502  int shortest;
503 } OutputFile;
504 
505 extern InputStream **input_streams;
506 extern int nb_input_streams;
507 extern InputFile **input_files;
508 extern int nb_input_files;
509 
511 extern int nb_output_streams;
512 extern OutputFile **output_files;
513 extern int nb_output_files;
514 
515 extern FilterGraph **filtergraphs;
516 extern int nb_filtergraphs;
517 
518 extern char *vstats_filename;
519 extern char *sdp_filename;
520 
521 extern float audio_drift_threshold;
522 extern float dts_delta_threshold;
523 extern float dts_error_threshold;
524 
525 extern int audio_volume;
526 extern int audio_sync_method;
527 extern int video_sync_method;
528 extern float frame_drop_threshold;
529 extern int do_benchmark;
530 extern int do_benchmark_all;
531 extern int do_deinterlace;
532 extern int do_hex_dump;
533 extern int do_pkt_dump;
534 extern int copy_ts;
535 extern int start_at_zero;
536 extern int copy_tb;
537 extern int debug_ts;
538 extern int exit_on_error;
539 extern int abort_on_flags;
540 extern int print_stats;
541 extern int qp_hist;
542 extern int stdin_interaction;
543 extern int frame_bits_per_raw_sample;
544 extern AVIOContext *progress_avio;
545 extern float max_error_rate;
546 extern char *videotoolbox_pixfmt;
547 
548 extern const AVIOInterruptCB int_cb;
549 
550 extern const OptionDef options[];
551 extern const HWAccel hwaccels[];
552 extern int hwaccel_lax_profile_check;
553 extern AVBufferRef *hw_device_ctx;
554 
555 
556 void term_init(void);
557 void term_exit(void);
558 
559 void reset_options(OptionsContext *o, int is_input);
560 void show_usage(void);
561 
562 void opt_output_file(void *optctx, const char *filename);
563 
566 
568 
569 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
570 void choose_sample_fmt(AVStream *st, AVCodec *codec);
571 
577 
578 int ffmpeg_parse_options(int argc, char **argv);
579 
587 int vaapi_device_init(const char *device);
588 
589 #endif /* FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:278
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:212
int nb_dump_attachment
Definition: ffmpeg.h:125
int got_output
Definition: ffmpeg.h:307
int nb_metadata
Definition: ffmpeg.h:165
int nb_streamid_map
Definition: ffmpeg.h:162
int frame_number
Definition: ffmpeg.h:408
Definition: ffmpeg.h:385
enum HWAccelID active_hwaccel_id
Definition: ffmpeg.h:334
int keep_pix_fmt
Definition: ffmpeg.h:471
const char * s
Definition: avisynth_c.h:631
Bytestream IO Context.
Definition: avio.h:111
float mux_preload
Definition: ffmpeg.h:151
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:498
HWAccelID
Definition: ffmpeg.h:60
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:237
int nb_outputs
Definition: ffmpeg.h:254
AVDictionary * swr_opts
Definition: ffmpeg.h:460
int resample_channels
Definition: ffmpeg.h:302
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target)
Definition: ffmpeg_filter.c:63
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
int stream_copy
Definition: ffmpeg.h:465
AVRational frame_rate
Definition: ffmpeg.h:430
int64_t * forced_kf_pts
Definition: ffmpeg.h:439
int64_t start_time_eof
Definition: ffmpeg.h:98
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:341
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:455
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:130
int data_disable
Definition: ffmpeg.h:158
float mux_max_delay
Definition: ffmpeg.h:152
int exit_on_error
Definition: ffmpeg_opt.c:112
int accurate_seek
Definition: ffmpeg.h:373
OutputFile ** output_files
Definition: ffmpeg.c:144
int nb_forced_key_frames
Definition: ffmpeg.h:177
int * streamid_map
Definition: ffmpeg.h:161
Main libavfilter public API header.
int nb_stream_maps
Definition: ffmpeg.h:137
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:196
int ostream_idx
Definition: ffmpeg.h:90
int nb_chroma_intra_matrices
Definition: ffmpeg.h:189
AVRational framerate
Definition: ffmpeg.h:291
void choose_sample_fmt(AVStream *st, AVCodec *codec)
Definition: ffmpeg_filter.c:92
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:204
SpecifierOpt * ts_scale
Definition: ffmpeg.h:122
AVCodecParserContext * parser
Definition: ffmpeg.h:473
int64_t max_pts
Definition: ffmpeg.h:284
AVFilterInOut * out_tmp
Definition: ffmpeg.h:240
int decoding_needed
Definition: ffmpeg.h:262
int nb_canvas_sizes
Definition: ffmpeg.h:209
FilterGraph * init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int rotate_overridden
Definition: ffmpeg.h:434
const char * b
Definition: vf_curves.c:109
SpecifierOpt * discard
Definition: ffmpeg.h:218
int nb_frame_pix_fmts
Definition: ffmpeg.h:113
void * hwaccel_ctx
Definition: ffmpeg.h:427
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:172
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:214
int eagain
Definition: ffmpeg.h:356
AVBitStreamFilterContext * bitstream_filters
Definition: ffmpeg.h:418
external API header
forced_keyframes_const
Definition: ffmpeg.h:384
int quality
Definition: ffmpeg.h:485
AVFrame * filter_frame
Definition: ffmpeg.h:269
int do_benchmark_all
Definition: ffmpeg_opt.c:105
int nb_program
Definition: ffmpeg.h:223
int last_dropped
Definition: ffmpeg.h:424
FilterGraph ** filtergraphs
Definition: ffmpeg.c:147
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:337
int64_t input_ts_offset
Definition: ffmpeg.h:362
int do_hex_dump
Definition: ffmpeg_opt.c:106
int nb_filter_scripts
Definition: ffmpeg.h:203
const char * name
Definition: ffmpeg.h:72
uint64_t packets_written
Definition: ffmpeg.h:479
AVCodec.
Definition: avcodec.h:3535
SpecifierOpt * filters
Definition: ffmpeg.h:200
int print_stats
Definition: ffmpeg_opt.c:114
float dts_error_threshold
Definition: ffmpeg_opt.c:97
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:499
int index
Definition: ffmpeg.h:245
uint64_t data_size
Definition: ffmpeg.h:477
SpecifierOpt * qscale
Definition: ffmpeg.h:174
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:112
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:188
struct FilterGraph * graph
Definition: ffmpeg.h:229
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:184
int encoding_needed
Definition: ffmpeg.h:407
Format I/O context.
Definition: avformat.h:1319
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:586
uint64_t samples_decoded
Definition: ffmpeg.h:350
struct InputStream * ist
Definition: ffmpeg.h:228
enum HWAccelID id
Definition: ffmpeg.h:74
uint64_t frames_decoded
Definition: ffmpeg.h:349
AVFilterGraph * graph
Definition: ffmpeg.h:248
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:450
int vdpau_init(AVCodecContext *s)
Definition: ffmpeg_vdpau.c:229
int user_set_discard
Definition: ffmpeg.h:261
int copy_initial_nonkeyframes
Definition: ffmpeg.h:467
uint8_t
AVDictionary * sws_dict
Definition: ffmpeg.h:459
int stdin_interaction
Definition: ffmpeg_opt.c:116
FILE * logfile
Definition: ffmpeg.h:451
AVDictionary * opts
Definition: ffmpeg.h:496
Definition: eval.c:149
int do_benchmark
Definition: ffmpeg_opt.c:104
int audio_sync_method
Definition: ffmpeg_opt.c:100
int nb_max_frames
Definition: ffmpeg.h:167
int shortest
Definition: ffmpeg.h:502
int nb_output_streams
Definition: ffmpeg.c:143
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:369
int sync_file_index
Definition: ffmpeg.h:83
AVDictionary * resample_opts
Definition: ffmpeg.h:461
int seek_timestamp
Definition: ffmpeg.h:99
void reset_options(OptionsContext *o, int is_input)
AVFilterContext * filter
Definition: ffmpeg.h:234
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:168
int resample_sample_rate
Definition: ffmpeg.h:301
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:267
int top_field_first
Definition: ffmpeg.h:292
int file_index
Definition: ffmpeg.h:258
const OptionDef options[]
Definition: ffserver.c:3969
struct InputStream::sub2video sub2video
int resample_pix_fmt
Definition: ffmpeg.h:298
int resample_height
Definition: ffmpeg.h:296
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:281
int wrap_correction_done
Definition: ffmpeg.h:279
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
unsigned m
Definition: audioconvert.c:187
SpecifierOpt * disposition
Definition: ffmpeg.h:220
int64_t next_dts
Definition: ffmpeg.h:274
Callback for checking whether to abort blocking functions.
Definition: avio.h:50
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:191
int rate_emu
Definition: ffmpeg.h:372
int nb_discard
Definition: ffmpeg.h:219
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:339
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3046
AVFilterContext * filter
Definition: ffmpeg.h:227
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:336
int nb_filters
Definition: ffmpeg.h:201
int64_t start_time
Definition: ffmpeg.h:97
int64_t start
Definition: ffmpeg.h:271
int loop
Definition: ffmpeg.h:358
uint64_t nb_packets
Definition: ffmpeg.h:347
int seek_timestamp
Definition: ffmpeg.h:367
int64_t last_mux_dts
Definition: ffmpeg.h:417
int video_sync_method
Definition: ffmpeg_opt.c:101
char * sdp_filename
Definition: ffmpeg_opt.c:93
SpecifierOpt * apad
Definition: ffmpeg.h:216
int last_nb0_frames[3]
Definition: ffmpeg.h:425
int vaapi_device_init(const char *device)
Definition: ffmpeg_vaapi.c:533
int dr1
Definition: ffmpeg.h:319
int nb_hwaccel_devices
Definition: ffmpeg.h:129
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:138
int nb_disposition
Definition: ffmpeg.h:221
SpecifierOpt * codec_tags
Definition: ffmpeg.h:170
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:182
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:73
int video_disable
Definition: ffmpeg.h:155
int nb_input_files
Definition: ffmpeg.c:140
int force_fps
Definition: ffmpeg.h:432
int qsv_transcode_init(OutputStream *ost)
Definition: ffmpeg_qsv.c:183
int nb_codec_names
Definition: ffmpeg.h:103
int qp_hist
Definition: ffmpeg_opt.c:115
StreamMap * stream_maps
Definition: ffmpeg.h:136
int hwaccel_lax_profile_check
Definition: ffmpeg_opt.c:89
float frame_drop_threshold
Definition: ffmpeg_opt.c:102
uint64_t limit_filesize
Definition: ffmpeg.h:150
const char * format
Definition: ffmpeg.h:100
int64_t error[4]
Definition: ffmpeg.h:491
int nb_passlogfiles
Definition: ffmpeg.h:213
int nb_force_fps
Definition: ffmpeg.h:179
OutputFilter * filter
Definition: ffmpeg.h:453
AVRational frame_aspect_ratio
Definition: ffmpeg.h:436
int nb_sample_fmts
Definition: ffmpeg.h:173
int file_index
Definition: ffmpeg.h:81
int nb_audio_channel_maps
Definition: ffmpeg.h:139
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:202
int vaapi_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_vaapi.c:411
int nb_attachments
Definition: ffmpeg.h:144
char * linklabel
Definition: ffmpeg.h:85
int nb_hwaccel_output_formats
Definition: ffmpeg.h:131
int nb_ts_scale
Definition: ffmpeg.h:123
int is_cfr
Definition: ffmpeg.h:431
SpecifierOpt * audio_channels
Definition: ffmpeg.h:104
int saw_first_ts
Definition: ffmpeg.h:288
int nb_audio_sample_rate
Definition: ffmpeg.h:107
int abort_on_flags
Definition: ffmpeg_opt.c:113
int metadata_chapters_manual
Definition: ffmpeg.h:142
struct OutputStream * ost
Definition: ffmpeg.h:235
int accurate_seek
Definition: ffmpeg.h:119
char * apad
Definition: ffmpeg.h:462
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
SpecifierOpt * pass
Definition: ffmpeg.h:210
int64_t nb_samples
Definition: ffmpeg.h:285
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:106
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:444
int64_t duration
Definition: ffmpeg.h:359
void opt_output_file(void *optctx, const char *filename)
int dxva2_init(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:620
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:124
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:595
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:208
int nb_codec_tags
Definition: ffmpeg.h:171
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:115
int64_t last_ts
Definition: ffmpeg.h:365
SpecifierOpt * metadata_map
Definition: ffmpeg.h:192
int do_pkt_dump
Definition: ffmpeg_opt.c:107
int64_t max_frames
Definition: ffmpeg.h:421
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:338
int audio_channels_mapped
Definition: ffmpeg.h:448
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:198
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:180
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:110
int stream_idx
Definition: ffmpeg.h:89
int nb_hwaccels
Definition: ffmpeg.h:127
int start_at_zero
Definition: ffmpeg_opt.c:109
int ret
Definition: ffmpeg.h:308
FILE * out
Definition: movenc-test.c:54
int audio_volume
Definition: ffmpeg_opt.c:99
Stream structure.
Definition: avformat.h:876
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:952
InputFilter ** filters
Definition: ffmpeg.h:323
int fix_sub_duration
Definition: ffmpeg.h:305
int64_t recording_time
Definition: ffmpeg.h:368
SpecifierOpt * hwaccels
Definition: ffmpeg.h:126
Definition: ffmpeg.h:71
SpecifierOpt * frame_rates
Definition: ffmpeg.h:108
AVStream * st
Definition: ffmpeg.h:259
int nb_presets
Definition: ffmpeg.h:195
int ost_index
Definition: ffmpeg.h:497
struct InputStream * sync_ist
Definition: ffmpeg.h:411
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:287
int64_t recording_time
Definition: ffmpeg.h:148
int unavailable
Definition: ffmpeg.h:464
void term_exit(void)
Definition: ffmpeg.c:308
int chapters_input_file
Definition: ffmpeg.h:146
int64_t stop_time
Definition: ffmpeg.h:149
float max_error_rate
Definition: ffmpeg_opt.c:118
uint64_t frames_encoded
Definition: ffmpeg.h:481
int nb_copy_prior_start
Definition: ffmpeg.h:199
OutputStream ** output_streams
Definition: ffmpeg.c:142
int ist_index
Definition: ffmpeg.h:357
const char * graph_desc
Definition: ffmpeg.h:246
int guess_layout_max
Definition: ffmpeg.h:293
int64_t start_time
Definition: ffmpeg.h:366
main external API structure.
Definition: avcodec.h:1642
InputFile ** input_files
Definition: ffmpeg.c:139
int rate_emu
Definition: ffmpeg.h:118
int metadata_streams_manual
Definition: ffmpeg.h:141
const char * attachment_filename
Definition: ffmpeg.h:466
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:361
AVCodecContext * enc_ctx
Definition: ffmpeg.h:419
int audio_disable
Definition: ffmpeg.h:156
int64_t input_ts_offset
Definition: ffmpeg.h:116
int nb_filtergraphs
Definition: ffmpeg.c:148
AVFrame * decoded_frame
Definition: ffmpeg.h:268
int nb_bitstream_filters
Definition: ffmpeg.h:169
SpecifierOpt * top_field_first
Definition: ffmpeg.h:190
int * audio_channels_map
Definition: ffmpeg.h:447
int configure_filtergraph(FilterGraph *fg)
rational number numerator/denominator
Definition: rational.h:43
int file_index
Definition: ffmpeg.h:403
int metadata_global_manual
Definition: ffmpeg.h:140
int64_t sync_opts
Definition: ffmpeg.h:412
char * vstats_filename
Definition: ffmpeg_opt.c:92
AVCodecContext * dec_ctx
Definition: ffmpeg.h:266
SpecifierOpt * force_fps
Definition: ffmpeg.h:178
char * disposition
Definition: ffmpeg.h:469
struct InputStream::@24 prev_sub
AVMediaType
Definition: avutil.h:191
int nb_fix_sub_duration
Definition: ffmpeg.h:207
int nb_inter_matrices
Definition: ffmpeg.h:187
int nb_streams_warn
Definition: ffmpeg.h:371
AVDictionary * decoder_opts
Definition: ffmpeg.h:290
int shortest
Definition: ffmpeg.h:153
int autorotate
Definition: ffmpeg.h:295
int showed_multi_packet_warning
Definition: ffmpeg.h:289
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:117
int64_t ts_offset
Definition: ffmpeg.h:364
int nb_qscale
Definition: ffmpeg.h:175
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:456
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:128
int nb_input_streams
Definition: ffmpeg.c:138
float audio_drift_threshold
Definition: ffmpeg_opt.c:95
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:331
AVFrame * filtered_frame
Definition: ffmpeg.h:422
int nb_autorotate
Definition: ffmpeg.h:133
int nb_audio_channels
Definition: ffmpeg.h:105
int source_index
Definition: ffmpeg.h:405
InputStream ** input_streams
Definition: ffmpeg.c:137
int copy_prior_start
Definition: ffmpeg.h:468
SpecifierOpt * metadata
Definition: ffmpeg.h:164
AVIOContext * progress_avio
Definition: ffmpeg.c:133
int nb_filters
Definition: ffmpeg.h:324
static int flags
Definition: cpu.c:47
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:443
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:275
int forced_kf_count
Definition: ffmpeg.h:440
int resample_sample_fmt
Definition: ffmpeg.h:300
int nb_intra_matrices
Definition: ffmpeg.h:185
OSTFinished finished
Definition: ffmpeg.h:463
char * forced_keyframes
Definition: ffmpeg.h:442
int nb_frame_rates
Definition: ffmpeg.h:109
uint64_t data_size
Definition: ffmpeg.h:345
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:457
int resample_width
Definition: ffmpeg.h:297
A reference to a data buffer.
Definition: buffer.h:81
int vda_init(AVCodecContext *s)
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:277
Main libavformat public API header.
int reconfiguration
Definition: ffmpeg.h:249
struct FilterGraph * graph
Definition: ffmpeg.h:236
uint64_t limit_filesize
Definition: ffmpeg.h:500
SpecifierOpt * presets
Definition: ffmpeg.h:194
SpecifierOpt * program
Definition: ffmpeg.h:222
int reinit_filters
Definition: ffmpeg.h:326
int nb_frame_sizes
Definition: ffmpeg.h:111
rational numbers
OptionGroup * g
Definition: ffmpeg.h:94
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:186
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
AVStream * st
Definition: muxing.c:54
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:176
uint64_t samples_encoded
Definition: ffmpeg.h:482
const char ** attachments
Definition: ffmpeg.h:143
AVFrame * last_frame
Definition: ffmpeg.h:423
int copy_ts
Definition: ffmpeg_opt.c:108
AVFormatContext * ctx
Definition: ffmpeg.h:354
int pict_type
Definition: ffmpeg.h:488
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:90
int stream_index
Definition: ffmpeg.h:82
AVCodec * enc
Definition: ffmpeg.h:420
AVSubtitle subtitle
Definition: ffmpeg.h:309
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:75
int eof_reached
Definition: ffmpeg.h:355
int nb_metadata_map
Definition: ffmpeg.h:193
int forced_kf_index
Definition: ffmpeg.h:441
int nb_rc_overrides
Definition: ffmpeg.h:183
int do_deinterlace
Definition: ffmpeg_opt.c:103
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:206
Definition: ffmpeg.h:390
pixel format definitions
char * avfilter
Definition: ffmpeg.h:454
SpecifierOpt * autorotate
Definition: ffmpeg.h:132
uint8_t * name
Definition: ffmpeg.h:230
float dts_delta_threshold
Definition: ffmpeg_opt.c:96
void * hwaccel_ctx
Definition: ffmpeg.h:335
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:1911
int top_field_first
Definition: ffmpeg.h:433
OutputFilter ** outputs
Definition: ffmpeg.h:253
SpecifierOpt * max_frames
Definition: ffmpeg.h:166
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:197
int disabled
Definition: ffmpeg.h:80
AVFormatContext * ctx
Definition: ffmpeg.h:495
int nb_output_files
Definition: ffmpeg.c:145
SpecifierOpt * codec_names
Definition: ffmpeg.h:102
void show_usage(void)
Definition: ffmpeg_opt.c:2996
int thread_queue_size
Definition: ffmpeg.h:120
An instance of a filter.
Definition: avfilter.h:305
char * hwaccel_device
Definition: ffmpeg.h:330
AVDictionary * encoder_opts
Definition: ffmpeg.h:458
InputFilter ** inputs
Definition: ffmpeg.h:251
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:340
int sync_stream_index
Definition: ffmpeg.h:84
int copy_tb
Definition: ffmpeg_opt.c:110
int64_t min_pts
Definition: ffmpeg.h:283
int discard
Definition: ffmpeg.h:260
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:329
int64_t first_pts
Definition: ffmpeg.h:415
int nb_inputs
Definition: ffmpeg.h:252
int index
Definition: ffmpeg.h:404
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
uint64_t resample_channel_layout
Definition: ffmpeg.h:303
OSTFinished
Definition: ffmpeg.h:397
enum AVMediaType type
Definition: ffmpeg.h:241
int nb_reinit_filters
Definition: ffmpeg.h:205
int debug_ts
Definition: ffmpeg_opt.c:111
int nb_guess_layout_max
Definition: ffmpeg.h:215
void term_init(void)
Definition: ffmpeg.c:366
int nb_frame_aspect_ratios
Definition: ffmpeg.h:181
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg.h:389
simple arithmetic expression evaluator
int subtitle_disable
Definition: ffmpeg.h:157