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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 {
70 };
71 
72 typedef struct HWAccel {
73  const char *name;
75  enum HWAccelID id;
77 } HWAccel;
78 
79 /* select an input stream for an output stream */
80 typedef struct StreamMap {
81  int disabled; /* 1 is this mapping is disabled by a negative map */
86  char *linklabel; /* name of an output link, for mapping lavfi outputs */
87 } StreamMap;
88 
89 typedef struct {
90  int file_idx, stream_idx, channel_idx; // input
91  int ofile_idx, ostream_idx; // output
93 
94 typedef struct OptionsContext {
96 
97  /* input/output options */
98  int64_t start_time;
99  int64_t start_time_eof;
101  const char *format;
102 
115 
116  /* input options */
118  int loop;
119  int rate_emu;
122 
135 
136  /* output options */
139  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
140  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
144  const char **attachments;
146 
148 
149  int64_t recording_time;
150  int64_t stop_time;
151  uint64_t limit_filesize;
152  float mux_preload;
154  int shortest;
155 
160 
161  /* indexed by output file stream index */
164 
212  int nb_pass;
220  int nb_apad;
232 
233 typedef struct InputFilter {
235  struct InputStream *ist;
238  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
239 
241 
242  // parameters configured for this input
243  int format;
244 
245  int width, height;
247 
249  int channels;
250  uint64_t channel_layout;
251 
253 
254  int eof;
255 } InputFilter;
256 
257 typedef struct OutputFilter {
259  struct OutputStream *ost;
262 
263  /* temporary storage until stream maps are processed */
266 
267  /* desired output stream properties */
268  int width, height;
270  int format;
272  uint64_t channel_layout;
273 
274  // those are only set if no format is specified and the encoder gives us multiple options
275  int *formats;
276  uint64_t *channel_layouts;
278 } OutputFilter;
279 
280 typedef struct FilterGraph {
281  int index;
282  const char *graph_desc;
283 
286 
291 } FilterGraph;
292 
293 typedef struct InputStream {
296  int discard; /* true if stream data should be discarded */
298  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
299 #define DECODING_FOR_OST 1
300 #define DECODING_FOR_FILTER 2
301 
305  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
306 
307  int64_t start; /* time when read started */
308  /* predicted dts of the next packet read for this stream or (when there are
309  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
310  int64_t next_dts;
311  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
312 
313  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
314  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
316 
318 
319  int64_t min_pts; /* pts with the smallest value in a current stream */
320  int64_t max_pts; /* pts with the higher value in a current stream */
321 
322  // when forcing constant input framerate through -r,
323  // this contains the pts that will be given to the next decoded frame
324  int64_t cfr_next_pts;
325 
326  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
327 
328  double ts_scale;
331  AVRational framerate; /* framerate forced with -r */
334 
336 
338  struct { /* previous decoded subtitle and related variables */
340  int ret;
342  } prev_sub;
343 
344  struct sub2video {
345  int64_t last_pts;
346  int64_t end_pts;
347  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
349  int w, h;
350  } sub2video;
351 
352  int dr1;
353 
354  /* decoded data from this stream goes into all those filters
355  * currently video and audio only */
358 
360 
361  /* hwaccel options */
365 
366  /* hwaccel context */
368  void *hwaccel_ctx;
375 
376  /* stats */
377  // combined size of all the packets read
378  uint64_t data_size;
379  /* number of packets successfully read for this stream */
380  uint64_t nb_packets;
381  // number of frames/samples retrieved from the decoder
382  uint64_t frames_decoded;
383  uint64_t samples_decoded;
384 
385  int64_t *dts_buffer;
387 
388  int got_output;
389 } InputStream;
390 
391 typedef struct InputFile {
393  int eof_reached; /* true if eof reached */
394  int eagain; /* true if last read attempt returned EAGAIN */
395  int ist_index; /* index of first stream in input_streams */
396  int loop; /* set number of times input stream should be looped */
397  int64_t duration; /* actual duration of the longest stream in a file
398  at the moment when looping happens */
399  AVRational time_base; /* time base of the duration */
401 
402  int64_t ts_offset;
403  int64_t last_ts;
404  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
406  int64_t recording_time;
407  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
408  from ctx.nb_streams if new streams appear during av_read_frame() */
409  int nb_streams_warn; /* number of streams that the user was warned of */
410  int rate_emu;
412 
413 #if HAVE_PTHREADS
414  AVThreadMessageQueue *in_thread_queue;
415  pthread_t thread; /* thread reading from this file */
416  int non_blocking; /* reading packets from the thread should not block */
417  int joined; /* the thread has been joined */
418  int thread_queue_size; /* maximum number of queued packets */
419 #endif
420 } InputFile;
421 
429 };
430 
431 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
432 
433 extern const char *const forced_keyframes_const_names[];
434 
435 typedef enum {
438 } OSTFinished ;
439 
440 typedef struct OutputStream {
441  int file_index; /* file index */
442  int index; /* stream index in the output file */
443  int source_index; /* InputStream index */
444  AVStream *st; /* stream in the output file */
445  int encoding_needed; /* true if encoding needed for this stream */
447  /* input pts and corresponding output pts
448  for A/V sync */
449  struct InputStream *sync_ist; /* input stream to sync against */
450  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
451  /* pts of the first frame encoded for this stream, used for limiting
452  * recording time */
453  int64_t first_pts;
454  /* dts of the last packet sent to the muxer */
455  int64_t last_mux_dts;
456  // the timebase of the packets sent to the muxer
459 
462 
464  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
466  int64_t max_frames;
471 
472  void *hwaccel_ctx;
473 
474  /* video only */
476  int is_cfr;
481 
483 
484  /* forced key frames */
485  int64_t *forced_kf_pts;
491 
492  /* audio only */
493  int *audio_channels_map; /* list of the channels id to pick from the source stream */
494  int audio_channels_mapped; /* number of channels in audio_channels_map */
495 
497  FILE *logfile;
498 
500  char *avfilter;
501  char *filters; ///< filtergraph associated to the -filter option
502  char *filters_script; ///< filtergraph script associated to the -filter_script option
503 
508  char *apad;
509  OSTFinished finished; /* no more packets should be written for this stream */
510  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
512 
513  // init_output_stream() has been called for this stream
514  // The encoder and the bitstream filters have been initialized and the stream
515  // parameters are set in the AVStream.
517 
519 
520  const char *attachment_filename;
523  char *disposition;
524 
526 
529 
530  /* stats */
531  // combined size of all the packets written
532  uint64_t data_size;
533  // number of packets send to the muxer
534  uint64_t packets_written;
535  // number of frames/samples sent to the encoder
536  uint64_t frames_encoded;
537  uint64_t samples_encoded;
538 
539  /* packet quality factor */
540  int quality;
541 
543 
544  /* the packets are buffered here until the muxer is ready to be initialized */
546 
547  /* packet picture type */
549 
550  /* frame encode sum of squared error values */
551  int64_t error[4];
552 } OutputStream;
553 
554 typedef struct OutputFile {
557  int ost_index; /* index of the first stream in output_streams */
558  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
559  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
560  uint64_t limit_filesize; /* filesize limit expressed in bytes */
561 
562  int shortest;
563 
565 } OutputFile;
566 
567 extern InputStream **input_streams;
568 extern int nb_input_streams;
569 extern InputFile **input_files;
570 extern int nb_input_files;
571 
573 extern int nb_output_streams;
574 extern OutputFile **output_files;
575 extern int nb_output_files;
576 
577 extern FilterGraph **filtergraphs;
578 extern int nb_filtergraphs;
579 
580 extern char *vstats_filename;
581 extern char *sdp_filename;
582 
583 extern float audio_drift_threshold;
584 extern float dts_delta_threshold;
585 extern float dts_error_threshold;
586 
587 extern int audio_volume;
588 extern int audio_sync_method;
589 extern int video_sync_method;
590 extern float frame_drop_threshold;
591 extern int do_benchmark;
592 extern int do_benchmark_all;
593 extern int do_deinterlace;
594 extern int do_hex_dump;
595 extern int do_pkt_dump;
596 extern int copy_ts;
597 extern int start_at_zero;
598 extern int copy_tb;
599 extern int debug_ts;
600 extern int exit_on_error;
601 extern int abort_on_flags;
602 extern int print_stats;
603 extern int qp_hist;
604 extern int stdin_interaction;
605 extern int frame_bits_per_raw_sample;
606 extern AVIOContext *progress_avio;
607 extern float max_error_rate;
608 extern char *videotoolbox_pixfmt;
609 
610 extern int filter_nbthreads;
611 extern int filter_complex_nbthreads;
612 extern int vstats_version;
613 
614 extern const AVIOInterruptCB int_cb;
615 
616 extern const OptionDef options[];
617 extern const HWAccel hwaccels[];
618 extern int hwaccel_lax_profile_check;
619 extern AVBufferRef *hw_device_ctx;
620 #if CONFIG_QSV
621 extern char *qsv_device;
622 #endif
623 
624 
625 void term_init(void);
626 void term_exit(void);
627 
628 void reset_options(OptionsContext *o, int is_input);
629 void show_usage(void);
630 
631 void opt_output_file(void *optctx, const char *filename);
632 
635 
637 
638 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
639 void choose_sample_fmt(AVStream *st, AVCodec *codec);
640 
643 void check_filter_outputs(void);
648 
649 void sub2video_update(InputStream *ist, AVSubtitle *sub);
650 
652 
653 int ffmpeg_parse_options(int argc, char **argv);
654 
661 int vaapi_device_init(const char *device);
663 
664 #endif /* FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:314
int nb_bitstream_filters
Definition: ffmpeg.h:460
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:213
AVRational enc_timebase
Definition: ffmpeg.h:458
int nb_dump_attachment
Definition: ffmpeg.h:126
int got_output
Definition: ffmpeg.h:339
int nb_metadata
Definition: ffmpeg.h:166
int nb_streamid_map
Definition: ffmpeg.h:163
int frame_number
Definition: ffmpeg.h:446
int width
Definition: ffmpeg.h:268
Definition: ffmpeg.h:423
enum HWAccelID active_hwaccel_id
Definition: ffmpeg.h:367
int keep_pix_fmt
Definition: ffmpeg.h:525
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:155
float mux_preload
Definition: ffmpeg.h:152
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:558
HWAccelID
Definition: ffmpeg.h:60
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:261
int nb_outputs
Definition: ffmpeg.h:290
char * qsv_device
Definition: ffmpeg_qsv.c:31
AVDictionary * swr_opts
Definition: ffmpeg.h:506
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:194
int stream_copy
Definition: ffmpeg.h:511
AVRational frame_rate
Definition: ffmpeg.h:475
int64_t * forced_kf_pts
Definition: ffmpeg.h:485
int64_t start_time_eof
Definition: ffmpeg.h:99
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:374
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:501
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:131
int data_disable
Definition: ffmpeg.h:159
float mux_max_delay
Definition: ffmpeg.h:153
int exit_on_error
Definition: ffmpeg_opt.c:115
int64_t cfr_next_pts
Definition: ffmpeg.h:324
int accurate_seek
Definition: ffmpeg.h:411
OutputFile ** output_files
Definition: ffmpeg.c:151
int nb_forced_key_frames
Definition: ffmpeg.h:178
int * streamid_map
Definition: ffmpeg.h:162
Main libavfilter public API header.
int nb_stream_maps
Definition: ffmpeg.h:138
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:197
int ostream_idx
Definition: ffmpeg.h:91
int nb_chroma_intra_matrices
Definition: ffmpeg.h:190
AVRational framerate
Definition: ffmpeg.h:331
void choose_sample_fmt(AVStream *st, AVCodec *codec)
Definition: ffmpeg_filter.c:92
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:205
SpecifierOpt * ts_scale
Definition: ffmpeg.h:123
int height
Definition: ffmpeg.h:245
AVCodecParserContext * parser
Definition: ffmpeg.h:527
int64_t max_pts
Definition: ffmpeg.h:320
AVFilterInOut * out_tmp
Definition: ffmpeg.h:264
int decoding_needed
Definition: ffmpeg.h:298
int nb_canvas_sizes
Definition: ffmpeg.h:210
The bitstream filter state.
Definition: avcodec.h:5876
int rotate_overridden
Definition: ffmpeg.h:479
int max_muxing_queue_size
Definition: ffmpeg.h:542
const char * b
Definition: vf_curves.c:113
SpecifierOpt * discard
Definition: ffmpeg.h:221
int nb_frame_pix_fmts
Definition: ffmpeg.h:114
void * hwaccel_ctx
Definition: ffmpeg.h:472
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:173
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:217
int eagain
Definition: ffmpeg.h:394
Convenience header that includes libavutil's core.
forced_keyframes_const
Definition: ffmpeg.h:422
int quality
Definition: ffmpeg.h:540
int cuvid_init(AVCodecContext *s)
Definition: ffmpeg_cuvid.c:30
AVFrame * filter_frame
Definition: ffmpeg.h:305
int do_benchmark_all
Definition: ffmpeg_opt.c:108
int nb_program
Definition: ffmpeg.h:226
int last_dropped
Definition: ffmpeg.h:469
FilterGraph ** filtergraphs
Definition: ffmpeg.c:154
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:370
int64_t input_ts_offset
Definition: ffmpeg.h:400
int do_hex_dump
Definition: ffmpeg_opt.c:109
int nb_filter_scripts
Definition: ffmpeg.h:204
const char * name
Definition: ffmpeg.h:73
uint64_t packets_written
Definition: ffmpeg.h:534
AVCodec.
Definition: avcodec.h:3719
int nb_dts_buffer
Definition: ffmpeg.h:386
SpecifierOpt * filters
Definition: ffmpeg.h:201
This struct describes the properties of an encoded stream.
Definition: avcodec.h:4104
int print_stats
Definition: ffmpeg_opt.c:117
float dts_error_threshold
Definition: ffmpeg_opt.c:100
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:559
int index
Definition: ffmpeg.h:281
uint64_t data_size
Definition: ffmpeg.h:532
SpecifierOpt * qscale
Definition: ffmpeg.h:175
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:461
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:113
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:189
struct FilterGraph * graph
Definition: ffmpeg.h:236
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:185
int encoding_needed
Definition: ffmpeg.h:445
Format I/O context.
Definition: avformat.h:1349
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:622
uint64_t samples_decoded
Definition: ffmpeg.h:383
struct InputStream * ist
Definition: ffmpeg.h:235
enum HWAccelID id
Definition: ffmpeg.h:75
uint64_t frames_decoded
Definition: ffmpeg.h:382
int header_written
Definition: ffmpeg.h:564
AVFilterGraph * graph
Definition: ffmpeg.h:284
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:496
int vdpau_init(AVCodecContext *s)
Definition: ffmpeg_vdpau.c:145
int user_set_discard
Definition: ffmpeg.h:297
int copy_initial_nonkeyframes
Definition: ffmpeg.h:521
int64_t * dts_buffer
Definition: ffmpeg.h:385
uint8_t
AVDictionary * sws_dict
Definition: ffmpeg.h:505
int nb_time_bases
Definition: ffmpeg.h:228
int stdin_interaction
Definition: ffmpeg_opt.c:119
FILE * logfile
Definition: ffmpeg.h:497
AVDictionary * opts
Definition: ffmpeg.h:556
Definition: eval.c:150
int do_benchmark
Definition: ffmpeg_opt.c:107
int audio_sync_method
Definition: ffmpeg_opt.c:103
int nb_max_frames
Definition: ffmpeg.h:168
int shortest
Definition: ffmpeg.h:562
int nb_output_streams
Definition: ffmpeg.c:150
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:407
int sync_file_index
Definition: ffmpeg.h:84
enum AVMediaType type
Definition: ffmpeg.h:238
AVDictionary * resample_opts
Definition: ffmpeg.h:507
int seek_timestamp
Definition: ffmpeg.h:100
static int flags
Definition: log.c:57
void reset_options(OptionsContext *o, int is_input)
AVFilterContext * filter
Definition: ffmpeg.h:258
int * formats
Definition: ffmpeg.h:275
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:169
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:303
int top_field_first
Definition: ffmpeg.h:332
int file_index
Definition: ffmpeg.h:294
const OptionDef options[]
Definition: ffserver.c:3952
struct InputStream::sub2video sub2video
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:317
int wrap_correction_done
Definition: ffmpeg.h:315
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:123
SpecifierOpt * disposition
Definition: ffmpeg.h:223
int64_t next_dts
Definition: ffmpeg.h:310
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:229
uint64_t channel_layout
Definition: ffmpeg.h:272
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:347
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:192
AVRational sample_aspect_ratio
Definition: ffmpeg.h:246
int rate_emu
Definition: ffmpeg.h:410
int nb_discard
Definition: ffmpeg.h:222
int sample_rate
Definition: ffmpeg.h:248
void check_filter_outputs(void)
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:372
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3220
AVFilterContext * filter
Definition: ffmpeg.h:234
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:369
int nb_filters
Definition: ffmpeg.h:202
int64_t start_time
Definition: ffmpeg.h:98
int64_t start
Definition: ffmpeg.h:307
int loop
Definition: ffmpeg.h:396
uint64_t nb_packets
Definition: ffmpeg.h:380
int seek_timestamp
Definition: ffmpeg.h:405
int64_t last_mux_dts
Definition: ffmpeg.h:455
int video_sync_method
Definition: ffmpeg_opt.c:104
int format
Definition: ffmpeg.h:243
char * sdp_filename
Definition: ffmpeg_opt.c:96
SpecifierOpt * apad
Definition: ffmpeg.h:219
int last_nb0_frames[3]
Definition: ffmpeg.h:470
int vaapi_device_init(const char *device)
Definition: ffmpeg_vaapi.c:219
int dr1
Definition: ffmpeg.h:352
int nb_hwaccel_devices
Definition: ffmpeg.h:130
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:139
int nb_disposition
Definition: ffmpeg.h:224
SpecifierOpt * codec_tags
Definition: ffmpeg.h:171
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:183
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:74
int video_disable
Definition: ffmpeg.h:156
int eof
Definition: ffmpeg.h:254
int nb_input_files
Definition: ffmpeg.c:147
int force_fps
Definition: ffmpeg.h:477
int nb_codec_names
Definition: ffmpeg.h:104
int qp_hist
Definition: ffmpeg_opt.c:118
StreamMap * stream_maps
Definition: ffmpeg.h:137
int hwaccel_lax_profile_check
Definition: ffmpeg_opt.c:92
float frame_drop_threshold
Definition: ffmpeg_opt.c:105
uint64_t limit_filesize
Definition: ffmpeg.h:151
const char * format
Definition: ffmpeg.h:101
int64_t error[4]
Definition: ffmpeg.h:551
int nb_passlogfiles
Definition: ffmpeg.h:214
int filter_nbthreads
Definition: ffmpeg_opt.c:122
int nb_force_fps
Definition: ffmpeg.h:180
OutputFilter * filter
Definition: ffmpeg.h:499
AVRational frame_aspect_ratio
Definition: ffmpeg.h:482
int nb_sample_fmts
Definition: ffmpeg.h:174
int file_index
Definition: ffmpeg.h:82
int nb_audio_channel_maps
Definition: ffmpeg.h:140
AVRational mux_timebase
Definition: ffmpeg.h:457
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:203
int vaapi_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_vaapi.c:136
int nb_attachments
Definition: ffmpeg.h:145
AVCodecContext * parser_avctx
Definition: ffmpeg.h:528
char * linklabel
Definition: ffmpeg.h:86
int nb_hwaccel_output_formats
Definition: ffmpeg.h:132
int nb_ts_scale
Definition: ffmpeg.h:124
int is_cfr
Definition: ffmpeg.h:476
SpecifierOpt * audio_channels
Definition: ffmpeg.h:105
uint64_t * channel_layouts
Definition: ffmpeg.h:276
int saw_first_ts
Definition: ffmpeg.h:329
int nb_audio_sample_rate
Definition: ffmpeg.h:108
int abort_on_flags
Definition: ffmpeg_opt.c:116
SpecifierOpt * time_bases
Definition: ffmpeg.h:227
int metadata_chapters_manual
Definition: ffmpeg.h:143
struct OutputStream * ost
Definition: ffmpeg.h:259
int accurate_seek
Definition: ffmpeg.h:120
char * apad
Definition: ffmpeg.h:508
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
SpecifierOpt * pass
Definition: ffmpeg.h:211
int64_t nb_samples
Definition: ffmpeg.h:326
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:107
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:490
int64_t duration
Definition: ffmpeg.h:397
void opt_output_file(void *optctx, const char *filename)
int dxva2_init(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:409
int width
Definition: ffmpeg.h:245
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:125
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:631
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:209
int nb_codec_tags
Definition: ffmpeg.h:172
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:71
int64_t last_ts
Definition: ffmpeg.h:403
SpecifierOpt * metadata_map
Definition: ffmpeg.h:193
int do_pkt_dump
Definition: ffmpeg_opt.c:110
int64_t max_frames
Definition: ffmpeg.h:466
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:371
int audio_channels_mapped
Definition: ffmpeg.h:494
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:199
int height
Definition: ffmpeg.h:268
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:181
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:111
int stream_idx
Definition: ffmpeg.h:90
int sample_rate
Definition: ffmpeg.h:271
int nb_hwaccels
Definition: ffmpeg.h:128
int inputs_done
Definition: ffmpeg.h:518
int vstats_version
Definition: ffmpeg_opt.c:124
int start_at_zero
Definition: ffmpeg_opt.c:112
int ret
Definition: ffmpeg.h:340
int audio_volume
Definition: ffmpeg_opt.c:102
Stream structure.
Definition: avformat.h:889
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:1017
InputFilter ** filters
Definition: ffmpeg.h:356
int fix_sub_duration
Definition: ffmpeg.h:337
int64_t recording_time
Definition: ffmpeg.h:406
SpecifierOpt * hwaccels
Definition: ffmpeg.h:127
Definition: ffmpeg.h:72
SpecifierOpt * frame_rates
Definition: ffmpeg.h:109
AVStream * st
Definition: ffmpeg.h:295
int nb_presets
Definition: ffmpeg.h:196
int ost_index
Definition: ffmpeg.h:557
struct InputStream * sync_ist
Definition: ffmpeg.h:449
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:328
int64_t recording_time
Definition: ffmpeg.h:149
int unavailable
Definition: ffmpeg.h:510
void term_exit(void)
Definition: ffmpeg.c:315
int chapters_input_file
Definition: ffmpeg.h:147
int64_t stop_time
Definition: ffmpeg.h:150
float max_error_rate
Definition: ffmpeg_opt.c:121
uint64_t frames_encoded
Definition: ffmpeg.h:536
int nb_copy_prior_start
Definition: ffmpeg.h:200
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:545
OutputStream ** output_streams
Definition: ffmpeg.c:149
int ist_index
Definition: ffmpeg.h:395
const char * graph_desc
Definition: ffmpeg.h:282
int guess_layout_max
Definition: ffmpeg.h:333
int64_t start_time
Definition: ffmpeg.h:404
struct InputStream::@38 prev_sub
main external API structure.
Definition: avcodec.h:1743
InputFile ** input_files
Definition: ffmpeg.c:146
int rate_emu
Definition: ffmpeg.h:119
int * sample_rates
Definition: ffmpeg.h:277
int metadata_streams_manual
Definition: ffmpeg.h:142
const char * attachment_filename
Definition: ffmpeg.h:520
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:399
AVCodecContext * enc_ctx
Definition: ffmpeg.h:463
int audio_disable
Definition: ffmpeg.h:157
int64_t input_ts_offset
Definition: ffmpeg.h:117
int nb_filtergraphs
Definition: ffmpeg.c:155
AVFrame * decoded_frame
Definition: ffmpeg.h:304
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:252
int nb_bitstream_filters
Definition: ffmpeg.h:170
SpecifierOpt * top_field_first
Definition: ffmpeg.h:191
int channels
Definition: ffmpeg.h:249
int * audio_channels_map
Definition: ffmpeg.h:493
int configure_filtergraph(FilterGraph *fg)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:441
int metadata_global_manual
Definition: ffmpeg.h:141
double rotate_override_value
Definition: ffmpeg.h:480
int64_t sync_opts
Definition: ffmpeg.h:450
char * vstats_filename
Definition: ffmpeg_opt.c:95
AVCodecContext * dec_ctx
Definition: ffmpeg.h:302
SpecifierOpt * force_fps
Definition: ffmpeg.h:179
char * disposition
Definition: ffmpeg.h:523
int filtergraph_is_simple(FilterGraph *fg)
AVMediaType
Definition: avutil.h:199
int nb_fix_sub_duration
Definition: ffmpeg.h:208
int nb_inter_matrices
Definition: ffmpeg.h:188
int nb_streams_warn
Definition: ffmpeg.h:409
AVDictionary * decoder_opts
Definition: ffmpeg.h:330
int shortest
Definition: ffmpeg.h:154
int autorotate
Definition: ffmpeg.h:335
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:120
int64_t ts_offset
Definition: ffmpeg.h:402
int nb_qscale
Definition: ffmpeg.h:176
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:502
int nb_enc_time_bases
Definition: ffmpeg.h:230
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:129
int nb_input_streams
Definition: ffmpeg.c:145
float audio_drift_threshold
Definition: ffmpeg_opt.c:98
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:364
AVFrame * filtered_frame
Definition: ffmpeg.h:467
int nb_autorotate
Definition: ffmpeg.h:134
int nb_audio_channels
Definition: ffmpeg.h:106
int source_index
Definition: ffmpeg.h:443
InputStream ** input_streams
Definition: ffmpeg.c:144
int copy_prior_start
Definition: ffmpeg.h:522
SpecifierOpt * metadata
Definition: ffmpeg.h:165
AVIOContext * progress_avio
Definition: ffmpeg.c:140
int nb_filters
Definition: ffmpeg.h:357
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:489
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:311
int forced_kf_count
Definition: ffmpeg.h:486
int nb_intra_matrices
Definition: ffmpeg.h:186
OSTFinished finished
Definition: ffmpeg.h:509
char * forced_keyframes
Definition: ffmpeg.h:488
int nb_frame_rates
Definition: ffmpeg.h:110
uint64_t data_size
Definition: ffmpeg.h:378
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:464
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:313
Main libavformat public API header.
int
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:215
int reconfiguration
Definition: ffmpeg.h:285
struct FilterGraph * graph
Definition: ffmpeg.h:260
uint64_t limit_filesize
Definition: ffmpeg.h:560
SpecifierOpt * presets
Definition: ffmpeg.h:195
SpecifierOpt * program
Definition: ffmpeg.h:225
int reinit_filters
Definition: ffmpeg.h:359
int nb_frame_sizes
Definition: ffmpeg.h:112
AVCodecParameters * ref_par
Definition: ffmpeg.h:464
Utilties for rational number calculation.
OptionGroup * g
Definition: ffmpeg.h:95
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:187
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:117
AVStream * st
Definition: muxing.c:54
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:177
uint64_t samples_encoded
Definition: ffmpeg.h:537
const char ** attachments
Definition: ffmpeg.h:144
int nb_max_muxing_queue_size
Definition: ffmpeg.h:216
AVFrame * last_frame
Definition: ffmpeg.h:468
uint64_t channel_layout
Definition: ffmpeg.h:250
int copy_ts
Definition: ffmpeg_opt.c:111
AVFormatContext * ctx
Definition: ffmpeg.h:392
int pict_type
Definition: ffmpeg.h:548
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:93
int stream_index
Definition: ffmpeg.h:83
AVCodec * enc
Definition: ffmpeg.h:465
AVSubtitle subtitle
Definition: ffmpeg.h:341
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:76
int eof_reached
Definition: ffmpeg.h:393
int nb_metadata_map
Definition: ffmpeg.h:194
int forced_kf_index
Definition: ffmpeg.h:487
int nb_rc_overrides
Definition: ffmpeg.h:184
int do_deinterlace
Definition: ffmpeg_opt.c:106
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:207
Definition: ffmpeg.h:428
pixel format definitions
char * avfilter
Definition: ffmpeg.h:500
SpecifierOpt * autorotate
Definition: ffmpeg.h:133
uint8_t * name
Definition: ffmpeg.h:237
float dts_delta_threshold
Definition: ffmpeg_opt.c:99
void * hwaccel_ctx
Definition: ffmpeg.h:368
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2083
int top_field_first
Definition: ffmpeg.h:478
OutputFilter ** outputs
Definition: ffmpeg.h:289
SpecifierOpt * max_frames
Definition: ffmpeg.h:167
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:198
int disabled
Definition: ffmpeg.h:81
AVRational frame_rate
Definition: ffmpeg.h:269
AVFormatContext * ctx
Definition: ffmpeg.h:555
int nb_output_files
Definition: ffmpeg.c:152
SpecifierOpt * codec_names
Definition: ffmpeg.h:103
void show_usage(void)
Definition: ffmpeg_opt.c:3170
int thread_queue_size
Definition: ffmpeg.h:121
An instance of a filter.
Definition: avfilter.h:323
char * hwaccel_device
Definition: ffmpeg.h:363
AVDictionary * encoder_opts
Definition: ffmpeg.h:504
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:287
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:373
int sync_stream_index
Definition: ffmpeg.h:85
int format
Definition: ffmpeg.h:270
int copy_tb
Definition: ffmpeg_opt.c:113
int64_t min_pts
Definition: ffmpeg.h:319
int initialized
Definition: ffmpeg.h:516
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int discard
Definition: ffmpeg.h:296
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:362
int64_t first_pts
Definition: ffmpeg.h:453
int nb_inputs
Definition: ffmpeg.h:288
int index
Definition: ffmpeg.h:442
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
OSTFinished
Definition: ffmpeg.h:435
enum AVMediaType type
Definition: ffmpeg.h:265
int nb_reinit_filters
Definition: ffmpeg.h:206
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:240
int debug_ts
Definition: ffmpeg_opt.c:114
void sub2video_update(InputStream *ist, AVSubtitle *sub)
Definition: ffmpeg.c:232
int nb_guess_layout_max
Definition: ffmpeg.h:218
void term_init(void)
Definition: ffmpeg.c:373
int nb_frame_aspect_ratios
Definition: ffmpeg.h:182
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg.h:427
simple arithmetic expression evaluator
int subtitle_disable
Definition: ffmpeg.h:158