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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
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  */
19 #ifndef FFMPEG_H
20 #define FFMPEG_H
22 #include "config.h"
24 #include <stdint.h>
25 #include <stdio.h>
26 #include <signal.h>
29 #include <pthread.h>
30 #endif
32 #include "cmdutils.h"
34 #include "libavformat/avformat.h"
35 #include "libavformat/avio.h"
37 #include "libavcodec/avcodec.h"
39 #include "libavfilter/avfilter.h"
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"
51 #define VSYNC_AUTO -1
53 #define VSYNC_CFR 1
54 #define VSYNC_VFR 2
55 #define VSYNC_VSCFR 0xfe
56 #define VSYNC_DROP 0xff
58 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
60 enum HWAccelID {
70 };
72 typedef struct HWAccel {
73  const char *name;
75  enum HWAccelID id;
77 } HWAccel;
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;
89 typedef struct {
90  int file_idx, stream_idx, channel_idx; // input
91  int ofile_idx, ostream_idx; // output
94 typedef struct OptionsContext {
97  /* input/output options */
98  int64_t start_time;
99  int64_t start_time_eof;
101  const char *format;
116  /* input options */
118  int loop;
119  int rate_emu;
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;
149  int64_t recording_time;
150  int64_t stop_time;
151  uint64_t limit_filesize;
152  float mux_preload;
154  int shortest;
161  /* indexed by output file stream index */
212  int nb_pass;
220  int nb_apad;
229 typedef struct InputFilter {
231  struct InputStream *ist;
235  // parameters configured for this input
236  int format;
238  int width, height;
242  int channels;
243  uint64_t channel_layout;
246 } InputFilter;
248 typedef struct OutputFilter {
250  struct OutputStream *ost;
254  /* temporary storage until stream maps are processed */
258  /* desired output stream properties */
259  int width, height;
261  int format;
263  uint64_t channel_layout;
265  // those are only set if no format is specified and the encoder gives us multiple options
266  int *formats;
267  uint64_t *channel_layouts;
269 } OutputFilter;
271 typedef struct FilterGraph {
272  int index;
273  const char *graph_desc;
282 } FilterGraph;
284 typedef struct InputStream {
287  int discard; /* true if stream data should be discarded */
289  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
290 #define DECODING_FOR_OST 1
296  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
298  int64_t start; /* time when read started */
299  /* predicted dts of the next packet read for this stream or (when there are
300  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
301  int64_t next_dts;
302  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
304  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
305  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
310  int64_t min_pts; /* pts with the smallest value in a current stream */
311  int64_t max_pts; /* pts with the higher value in a current stream */
312  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
314  double ts_scale;
317  AVRational framerate; /* framerate forced with -r */
332  struct { /* previous decoded subtitle and related variables */
334  int ret;
336  } prev_sub;
338  struct sub2video {
339  int64_t last_pts;
340  int64_t end_pts;
342  int w, h;
343  } sub2video;
345  int dr1;
347  /* decoded data from this stream goes into all those filters
348  * currently video and audio only */
354  /* hwaccel options */
359  /* hwaccel context */
361  void *hwaccel_ctx;
369  /* stats */
370  // combined size of all the packets read
371  uint64_t data_size;
372  /* number of packets successfully read for this stream */
373  uint64_t nb_packets;
374  // number of frames/samples retrieved from the decoder
375  uint64_t frames_decoded;
376  uint64_t samples_decoded;
378  int64_t *dts_buffer;
380 } InputStream;
382 typedef struct InputFile {
384  int eof_reached; /* true if eof reached */
385  int eagain; /* true if last read attempt returned EAGAIN */
386  int ist_index; /* index of first stream in input_streams */
387  int loop; /* set number of times input stream should be looped */
388  int64_t duration; /* actual duration of the longest stream in a file
389  at the moment when looping happens */
390  AVRational time_base; /* time base of the duration */
393  int64_t ts_offset;
394  int64_t last_ts;
395  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
397  int64_t recording_time;
398  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
399  from ctx.nb_streams if new streams appear during av_read_frame() */
400  int nb_streams_warn; /* number of streams that the user was warned of */
401  int rate_emu;
405  AVThreadMessageQueue *in_thread_queue;
406  pthread_t thread; /* thread reading from this file */
407  int non_blocking; /* reading packets from the thread should not block */
408  int joined; /* the thread has been joined */
409  int thread_queue_size; /* maximum number of queued packets */
410 #endif
411 } InputFile;
420 };
422 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
424 extern const char *const forced_keyframes_const_names[];
426 typedef enum {
429 } OSTFinished ;
431 typedef struct OutputStream {
432  int file_index; /* file index */
433  int index; /* stream index in the output file */
434  int source_index; /* InputStream index */
435  AVStream *st; /* stream in the output file */
436  int encoding_needed; /* true if encoding needed for this stream */
438  /* input pts and corresponding output pts
439  for A/V sync */
440  struct InputStream *sync_ist; /* input stream to sync against */
441  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
442  /* pts of the first frame encoded for this stream, used for limiting
443  * recording time */
444  int64_t first_pts;
445  /* dts of the last packet sent to the muxer */
446  int64_t last_mux_dts;
453  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
455  int64_t max_frames;
461  void *hwaccel_ctx;
463  /* video only */
465  int is_cfr;
472  /* forced key frames */
473  int64_t *forced_kf_pts;
480  /* audio only */
481  int *audio_channels_map; /* list of the channels id to pick from the source stream */
482  int audio_channels_mapped; /* number of channels in audio_channels_map */
485  FILE *logfile;
488  char *avfilter;
489  char *filters; ///< filtergraph associated to the -filter option
490  char *filters_script; ///< filtergraph script associated to the -filter_script option
496  char *apad;
497  OSTFinished finished; /* no more packets should be written for this stream */
498  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
501  // init_output_stream() has been called for this stream
502  // The encoder and the bitstream filters have been initialized and the stream
503  // parameters are set in the AVStream.
506  const char *attachment_filename;
509  char *disposition;
516  /* stats */
517  // combined size of all the packets written
518  uint64_t data_size;
519  // number of packets send to the muxer
520  uint64_t packets_written;
521  // number of frames/samples sent to the encoder
522  uint64_t frames_encoded;
523  uint64_t samples_encoded;
525  /* packet quality factor */
526  int quality;
530  /* the packets are buffered here until the muxer is ready to be initialized */
533  /* packet picture type */
536  /* frame encode sum of squared error values */
537  int64_t error[4];
538 } OutputStream;
540 typedef struct OutputFile {
543  int ost_index; /* index of the first stream in output_streams */
544  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
545  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
546  uint64_t limit_filesize; /* filesize limit expressed in bytes */
548  int shortest;
551 } OutputFile;
553 extern InputStream **input_streams;
554 extern int nb_input_streams;
555 extern InputFile **input_files;
556 extern int nb_input_files;
559 extern int nb_output_streams;
560 extern OutputFile **output_files;
561 extern int nb_output_files;
563 extern FilterGraph **filtergraphs;
564 extern int nb_filtergraphs;
566 extern char *vstats_filename;
567 extern char *sdp_filename;
569 extern float audio_drift_threshold;
570 extern float dts_delta_threshold;
571 extern float dts_error_threshold;
573 extern int audio_volume;
574 extern int audio_sync_method;
575 extern int video_sync_method;
576 extern float frame_drop_threshold;
577 extern int do_benchmark;
578 extern int do_benchmark_all;
579 extern int do_deinterlace;
580 extern int do_hex_dump;
581 extern int do_pkt_dump;
582 extern int copy_ts;
583 extern int start_at_zero;
584 extern int copy_tb;
585 extern int debug_ts;
586 extern int exit_on_error;
587 extern int abort_on_flags;
588 extern int print_stats;
589 extern int qp_hist;
590 extern int stdin_interaction;
591 extern int frame_bits_per_raw_sample;
592 extern AVIOContext *progress_avio;
593 extern float max_error_rate;
594 extern char *videotoolbox_pixfmt;
596 extern int filter_nbthreads;
597 extern int filter_complex_nbthreads;
599 extern const AVIOInterruptCB int_cb;
601 extern const OptionDef options[];
602 extern const HWAccel hwaccels[];
603 extern int hwaccel_lax_profile_check;
604 extern AVBufferRef *hw_device_ctx;
607 void term_init(void);
608 void term_exit(void);
610 void reset_options(OptionsContext *o, int is_input);
611 void show_usage(void);
613 void opt_output_file(void *optctx, const char *filename);
620 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
621 void choose_sample_fmt(AVStream *st, AVCodec *codec);
633 int ffmpeg_parse_options(int argc, char **argv);
642 int vaapi_device_init(const char *device);
646 #endif /* FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:305
int nb_bitstream_filters
Definition: ffmpeg.h:448
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:213
int nb_dump_attachment
Definition: ffmpeg.h:126
int got_output
Definition: ffmpeg.h:333
int nb_metadata
Definition: ffmpeg.h:166
int nb_streamid_map
Definition: ffmpeg.h:163
int frame_number
Definition: ffmpeg.h:437
int width
Definition: ffmpeg.h:259
Definition: ffmpeg.h:414
enum HWAccelID active_hwaccel_id
Definition: ffmpeg.h:360
int keep_pix_fmt
Definition: ffmpeg.h:511
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:147
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:544
Definition: ffmpeg.h:60
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:252
int nb_outputs
Definition: ffmpeg.h:281
AVDictionary * swr_opts
Definition: ffmpeg.h:494
int resample_channels
Definition: ffmpeg.h:328
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:184
int stream_copy
Definition: ffmpeg.h:499
AVRational frame_rate
Definition: ffmpeg.h:464
int64_t * forced_kf_pts
Definition: ffmpeg.h:473
int64_t start_time_eof
Definition: ffmpeg.h:99
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:367
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:489
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
int accurate_seek
Definition: ffmpeg.h:402
OutputFile ** output_files
Definition: ffmpeg.c:147
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
uint8_t * bsf_extradata_updated
Definition: ffmpeg.h:449
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:317
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:238
AVCodecParserContext * parser
Definition: ffmpeg.h:513
int64_t max_pts
Definition: ffmpeg.h:311
AVFilterInOut * out_tmp
Definition: ffmpeg.h:255
int decoding_needed
Definition: ffmpeg.h:289
int nb_canvas_sizes
Definition: ffmpeg.h:210
The bitstream filter state.
Definition: avcodec.h:5732
int rotate_overridden
Definition: ffmpeg.h:468
int max_muxing_queue_size
Definition: ffmpeg.h:528
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:461
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:173
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:217
int eagain
Definition: ffmpeg.h:385
Convenience header that includes libavutil's core.
Definition: ffmpeg.h:413
struct InputStream::@36 prev_sub
int quality
Definition: ffmpeg.h:526
int cuvid_init(AVCodecContext *s)
Definition: ffmpeg_cuvid.c:43
AVFrame * filter_frame
Definition: ffmpeg.h:296
int do_benchmark_all
Definition: ffmpeg_opt.c:108
int nb_program
Definition: ffmpeg.h:226
int last_dropped
Definition: ffmpeg.h:458
FilterGraph ** filtergraphs
Definition: ffmpeg.c:150
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:363
int64_t input_ts_offset
Definition: ffmpeg.h:391
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:520
Definition: avcodec.h:3601
int nb_dts_buffer
Definition: ffmpeg.h:379
SpecifierOpt * filters
Definition: ffmpeg.h:201
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3973
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:545
int index
Definition: ffmpeg.h:272
uint64_t data_size
Definition: ffmpeg.h:518
SpecifierOpt * qscale
Definition: ffmpeg.h:175
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:450
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:113
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:189
struct FilterGraph * graph
Definition: ffmpeg.h:232
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:185
int encoding_needed
Definition: ffmpeg.h:436
Format I/O context.
Definition: avformat.h:1338
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:601
uint64_t samples_decoded
Definition: ffmpeg.h:376
struct InputStream * ist
Definition: ffmpeg.h:231
enum HWAccelID id
Definition: ffmpeg.h:75
uint64_t frames_decoded
Definition: ffmpeg.h:375
int header_written
Definition: ffmpeg.h:550
AVFilterGraph * graph
Definition: ffmpeg.h:275
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:484
int vdpau_init(AVCodecContext *s)
Definition: ffmpeg_vdpau.c:145
int user_set_discard
Definition: ffmpeg.h:288
int copy_initial_nonkeyframes
Definition: ffmpeg.h:507
int64_t * dts_buffer
Definition: ffmpeg.h:378
AVDictionary * sws_dict
Definition: ffmpeg.h:493
int stdin_interaction
Definition: ffmpeg_opt.c:119
FILE * logfile
Definition: ffmpeg.h:485
AVDictionary * opts
Definition: ffmpeg.h:542
Definition: eval.c:149
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:548
int nb_output_streams
Definition: ffmpeg.c:146
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:398
int sync_file_index
Definition: ffmpeg.h:84
AVDictionary * resample_opts
Definition: ffmpeg.h:495
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:249
int * formats
Definition: ffmpeg.h:266
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:169
int resample_sample_rate
Definition: ffmpeg.h:327
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:294
int top_field_first
Definition: ffmpeg.h:318
int file_index
Definition: ffmpeg.h:285
const OptionDef options[]
Definition: ffserver.c:3947
struct InputStream::sub2video sub2video
int resample_pix_fmt
Definition: ffmpeg.h:324
int resample_height
Definition: ffmpeg.h:322
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:308
int wrap_correction_done
Definition: ffmpeg.h:306
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:301
uint64_t channel_layout
Definition: ffmpeg.h:263
Callback for checking whether to abort blocking functions.
Definition: avio.h:50
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:192
AVRational sample_aspect_ratio
Definition: ffmpeg.h:239
int rate_emu
Definition: ffmpeg.h:401
int nb_discard
Definition: ffmpeg.h:222
int sample_rate
Definition: ffmpeg.h:241
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:365
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3235
AVFilterContext * filter
Definition: ffmpeg.h:230
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:362
int nb_filters
Definition: ffmpeg.h:202
int64_t start_time
Definition: ffmpeg.h:98
int64_t start
Definition: ffmpeg.h:298
int loop
Definition: ffmpeg.h:387
uint64_t nb_packets
Definition: ffmpeg.h:373
int seek_timestamp
Definition: ffmpeg.h:396
int64_t last_mux_dts
Definition: ffmpeg.h:446
int video_sync_method
Definition: ffmpeg_opt.c:104
int format
Definition: ffmpeg.h:236
char * sdp_filename
Definition: ffmpeg_opt.c:96
SpecifierOpt * apad
Definition: ffmpeg.h:219
int last_nb0_frames[3]
Definition: ffmpeg.h:459
int vaapi_device_init(const char *device)
Definition: ffmpeg_vaapi.c:526
int dr1
Definition: ffmpeg.h:345
int nb_hwaccel_devices
Definition: ffmpeg.h:130
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:139
int nb_disposition
Definition: ffmpeg.h:224
int cuvid_transcode_init(OutputStream *ost)
Definition: ffmpeg_cuvid.c:60
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 nb_input_files
Definition: ffmpeg.c:143
int force_fps
Definition: ffmpeg.h:466
int qsv_transcode_init(OutputStream *ost)
Definition: ffmpeg_qsv.c:98
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:537
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:487
AVRational frame_aspect_ratio
Definition: ffmpeg.h:470
int nb_sample_fmts
Definition: ffmpeg.h:174
int file_index
Definition: ffmpeg.h:82
int nb_audio_channel_maps
Definition: ffmpeg.h:140
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:203
int vaapi_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_vaapi.c:411
int nb_attachments
Definition: ffmpeg.h:145
AVCodecContext * parser_avctx
Definition: ffmpeg.h:514
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:465
SpecifierOpt * audio_channels
Definition: ffmpeg.h:105
uint64_t * channel_layouts
Definition: ffmpeg.h:267
int saw_first_ts
Definition: ffmpeg.h:315
int nb_audio_sample_rate
Definition: ffmpeg.h:108
int abort_on_flags
Definition: ffmpeg_opt.c:116
int metadata_chapters_manual
Definition: ffmpeg.h:143
struct OutputStream * ost
Definition: ffmpeg.h:250
int accurate_seek
Definition: ffmpeg.h:120
char * apad
Definition: ffmpeg.h:496
SpecifierOpt * pass
Definition: ffmpeg.h:211
int64_t nb_samples
Definition: ffmpeg.h:312
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:107
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:478
int64_t duration
Definition: ffmpeg.h:388
void opt_output_file(void *optctx, const char *filename)
int dxva2_init(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:409
int width
Definition: ffmpeg.h:238
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:610
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:209
int nb_codec_tags
Definition: ffmpeg.h:172
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:58
int64_t last_ts
Definition: ffmpeg.h:394
SpecifierOpt * metadata_map
Definition: ffmpeg.h:193
int do_pkt_dump
Definition: ffmpeg_opt.c:110
int64_t max_frames
Definition: ffmpeg.h:455
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:364
int audio_channels_mapped
Definition: ffmpeg.h:482
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:199
int height
Definition: ffmpeg.h:259
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:262
int nb_hwaccels
Definition: ffmpeg.h:128
int start_at_zero
Definition: ffmpeg_opt.c:112
int ret
Definition: ffmpeg.h:334
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:961
InputFilter ** filters
Definition: ffmpeg.h:349
int fix_sub_duration
Definition: ffmpeg.h:331
int64_t recording_time
Definition: ffmpeg.h:397
SpecifierOpt * hwaccels
Definition: ffmpeg.h:127
Definition: ffmpeg.h:72
SpecifierOpt * frame_rates
Definition: ffmpeg.h:109
AVStream * st
Definition: ffmpeg.h:286
int nb_presets
Definition: ffmpeg.h:196
int ost_index
Definition: ffmpeg.h:543
struct InputStream * sync_ist
Definition: ffmpeg.h:440
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:314
int64_t recording_time
Definition: ffmpeg.h:149
int unavailable
Definition: ffmpeg.h:498
void term_exit(void)
Definition: ffmpeg.c:311
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:522
int nb_copy_prior_start
Definition: ffmpeg.h:200
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:531
OutputStream ** output_streams
Definition: ffmpeg.c:145
int ist_index
Definition: ffmpeg.h:386
const char * graph_desc
Definition: ffmpeg.h:273
int guess_layout_max
Definition: ffmpeg.h:319
int64_t start_time
Definition: ffmpeg.h:395
main external API structure.
Definition: avcodec.h:1676
InputFile ** input_files
Definition: ffmpeg.c:142
int rate_emu
Definition: ffmpeg.h:119
int * sample_rates
Definition: ffmpeg.h:268
int metadata_streams_manual
Definition: ffmpeg.h:142
const char * attachment_filename
Definition: ffmpeg.h:506
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:390
AVCodecContext * enc_ctx
Definition: ffmpeg.h:452
int audio_disable
Definition: ffmpeg.h:157
int64_t input_ts_offset
Definition: ffmpeg.h:117
int nb_filtergraphs
Definition: ffmpeg.c:151
AVFrame * decoded_frame
Definition: ffmpeg.h:295
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:245
int nb_bitstream_filters
Definition: ffmpeg.h:170
SpecifierOpt * top_field_first
Definition: ffmpeg.h:191
int channels
Definition: ffmpeg.h:242
int * audio_channels_map
Definition: ffmpeg.h:481
int configure_filtergraph(FilterGraph *fg)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:432
int metadata_global_manual
Definition: ffmpeg.h:141
int64_t sync_opts
Definition: ffmpeg.h:441
char * vstats_filename
Definition: ffmpeg_opt.c:95
AVCodecContext * dec_ctx
Definition: ffmpeg.h:293
SpecifierOpt * force_fps
Definition: ffmpeg.h:179
char * disposition
Definition: ffmpeg.h:509
int filtergraph_is_simple(FilterGraph *fg)
Definition: avutil.h:193
int nb_fix_sub_duration
Definition: ffmpeg.h:208
int nb_inter_matrices
Definition: ffmpeg.h:188
int nb_streams_warn
Definition: ffmpeg.h:400
AVDictionary * decoder_opts
Definition: ffmpeg.h:316
int shortest
Definition: ffmpeg.h:154
int autorotate
Definition: ffmpeg.h:321
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:120
int64_t ts_offset
Definition: ffmpeg.h:393
int nb_qscale
Definition: ffmpeg.h:176
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:490
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:129
int nb_input_streams
Definition: ffmpeg.c:141
float audio_drift_threshold
Definition: ffmpeg_opt.c:98
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:357
AVFrame * filtered_frame
Definition: ffmpeg.h:456
int nb_autorotate
Definition: ffmpeg.h:134
int nb_audio_channels
Definition: ffmpeg.h:106
int source_index
Definition: ffmpeg.h:434
InputStream ** input_streams
Definition: ffmpeg.c:140
int copy_prior_start
Definition: ffmpeg.h:508
SpecifierOpt * metadata
Definition: ffmpeg.h:165
AVIOContext * progress_avio
Definition: ffmpeg.c:136
int nb_filters
Definition: ffmpeg.h:350
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:477
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:302
int forced_kf_count
Definition: ffmpeg.h:474
int resample_sample_fmt
Definition: ffmpeg.h:326
int nb_intra_matrices
Definition: ffmpeg.h:186
OSTFinished finished
Definition: ffmpeg.h:497
char * forced_keyframes
Definition: ffmpeg.h:476
int nb_frame_rates
Definition: ffmpeg.h:110
uint64_t data_size
Definition: ffmpeg.h:371
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:460
int resample_width
Definition: ffmpeg.h:323
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:304
Main libavformat public API header.
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:215
int reconfiguration
Definition: ffmpeg.h:276
struct FilterGraph * graph
Definition: ffmpeg.h:251
uint64_t limit_filesize
Definition: ffmpeg.h:546
SpecifierOpt * presets
Definition: ffmpeg.h:195
SpecifierOpt * program
Definition: ffmpeg.h:225
int reinit_filters
Definition: ffmpeg.h:352
int nb_frame_sizes
Definition: ffmpeg.h:112
AVCodecParameters * ref_par
Definition: ffmpeg.h:453
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:114
AVStream * st
Definition: muxing.c:54
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:177
uint64_t samples_encoded
Definition: ffmpeg.h:523
const char ** attachments
Definition: ffmpeg.h:144
int nb_max_muxing_queue_size
Definition: ffmpeg.h:216
AVFrame * last_frame
Definition: ffmpeg.h:457
uint64_t channel_layout
Definition: ffmpeg.h:243
int copy_ts
Definition: ffmpeg_opt.c:111
AVFormatContext * ctx
Definition: ffmpeg.h:383
int pict_type
Definition: ffmpeg.h:534
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:93
int stream_index
Definition: ffmpeg.h:83
AVCodec * enc
Definition: ffmpeg.h:454
AVSubtitle subtitle
Definition: ffmpeg.h:335
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:76
int eof_reached
Definition: ffmpeg.h:384
int nb_metadata_map
Definition: ffmpeg.h:194
int forced_kf_index
Definition: ffmpeg.h:475
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:419
pixel format definitions
char * avfilter
Definition: ffmpeg.h:488
SpecifierOpt * autorotate
Definition: ffmpeg.h:133
uint8_t * name
Definition: ffmpeg.h:233
float dts_delta_threshold
Definition: ffmpeg_opt.c:99
void * hwaccel_ctx
Definition: ffmpeg.h:361
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2005
int top_field_first
Definition: ffmpeg.h:467
OutputFilter ** outputs
Definition: ffmpeg.h:280
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:260
AVFormatContext * ctx
Definition: ffmpeg.h:541
int nb_output_files
Definition: ffmpeg.c:148
SpecifierOpt * codec_names
Definition: ffmpeg.h:103
void show_usage(void)
Definition: ffmpeg_opt.c:3185
int thread_queue_size
Definition: ffmpeg.h:121
An instance of a filter.
Definition: avfilter.h:307
char * hwaccel_device
Definition: ffmpeg.h:356
AVDictionary * encoder_opts
Definition: ffmpeg.h:492
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:278
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:366
int sync_stream_index
Definition: ffmpeg.h:85
int ifilter_parameters_from_decoder(InputFilter *ifilter, const AVCodecContext *avctx)
int format
Definition: ffmpeg.h:261
int copy_tb
Definition: ffmpeg_opt.c:113
int64_t min_pts
Definition: ffmpeg.h:310
int initialized
Definition: ffmpeg.h:504
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int discard
Definition: ffmpeg.h:287
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:355
int64_t first_pts
Definition: ffmpeg.h:444
int nb_inputs
Definition: ffmpeg.h:279
int index
Definition: ffmpeg.h:433
Pixel format.
Definition: pixfmt.h:60
uint64_t resample_channel_layout
Definition: ffmpeg.h:329
Definition: ffmpeg.h:426
enum AVMediaType type
Definition: ffmpeg.h:256
int nb_reinit_filters
Definition: ffmpeg.h:206
int debug_ts
Definition: ffmpeg_opt.c:114
int nb_guess_layout_max
Definition: ffmpeg.h:218
void term_init(void)
Definition: ffmpeg.c:369
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:418
simple arithmetic expression evaluator
int subtitle_disable
Definition: ffmpeg.h:158