FFmpeg
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 FFTOOLS_FFMPEG_H
20 #define FFTOOLS_FFMPEG_H
21 
22 #include "config.h"
23 
24 #include <stdint.h>
25 #include <stdio.h>
26 #include <signal.h>
27 
28 #include "cmdutils.h"
29 
30 #include "libavformat/avformat.h"
31 #include "libavformat/avio.h"
32 
33 #include "libavcodec/avcodec.h"
34 #include "libavcodec/bsf.h"
35 
36 #include "libavfilter/avfilter.h"
37 
38 #include "libavutil/avutil.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/eval.h"
41 #include "libavutil/fifo.h"
42 #include "libavutil/hwcontext.h"
43 #include "libavutil/pixfmt.h"
44 #include "libavutil/rational.h"
45 #include "libavutil/thread.h"
47 
49 
50 #define VSYNC_AUTO -1
51 #define VSYNC_PASSTHROUGH 0
52 #define VSYNC_CFR 1
53 #define VSYNC_VFR 2
54 #define VSYNC_VSCFR 0xfe
55 #define VSYNC_DROP 0xff
56 
57 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
58 
59 enum HWAccelID {
63 };
64 
65 typedef struct HWDevice {
66  const char *name;
69 } HWDevice;
70 
71 /* select an input stream for an output stream */
72 typedef struct StreamMap {
73  int disabled; /* 1 is this mapping is disabled by a negative map */
78  char *linklabel; /* name of an output link, for mapping lavfi outputs */
79 } StreamMap;
80 
81 typedef struct {
82  int file_idx, stream_idx, channel_idx; // input
83  int ofile_idx, ostream_idx; // output
85 
86 typedef struct OptionsContext {
88 
89  /* input/output options */
90  int64_t start_time;
91  int64_t start_time_eof;
93  const char *format;
94 
109 
110  /* input options */
112  int loop;
113  int rate_emu;
114  float readrate;
117 
130 
131  /* output options */
134  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
135  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
139  const char **attachments;
141 
143 
144  int64_t recording_time;
145  int64_t stop_time;
146  uint64_t limit_filesize;
147  float mux_preload;
149  int shortest;
150  int bitexact;
151 
156 
157  /* indexed by output file stream index */
160 
208  int nb_pass;
218  int nb_apad;
232 
233 typedef struct InputFilter {
235  struct InputStream *ist;
237  uint8_t *name;
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 
254 
255  int eof;
256 } InputFilter;
257 
258 typedef struct OutputFilter {
260  struct OutputStream *ost;
262  uint8_t *name;
263 
264  /* temporary storage until stream maps are processed */
267 
268  /* desired output stream properties */
269  int width, height;
271  int format;
273  uint64_t channel_layout;
274 
275  // those are only set if no format is specified and the encoder gives us multiple options
276  // They point directly to the relevant lists of the encoder.
277  const int *formats;
278  const uint64_t *channel_layouts;
279  const int *sample_rates;
280 } OutputFilter;
281 
282 typedef struct FilterGraph {
283  int index;
284  const char *graph_desc;
285 
288 
293 } FilterGraph;
294 
295 typedef struct InputStream {
298  int discard; /* true if stream data should be discarded */
300  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
301 #define DECODING_FOR_OST 1
302 #define DECODING_FOR_FILTER 2
303 
305  const AVCodec *dec;
308 
309  int64_t prev_pkt_pts;
310  int64_t start; /* time when read started */
311  /* predicted dts of the next packet read for this stream or (when there are
312  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
313  int64_t next_dts;
314  int64_t first_dts; ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
315  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
316 
317  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
318  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
320 
322 
323  int64_t min_pts; /* pts with the smallest value in a current stream */
324  int64_t max_pts; /* pts with the higher value in a current stream */
325 
326  // when forcing constant input framerate through -r,
327  // this contains the pts that will be given to the next decoded frame
328  int64_t cfr_next_pts;
329 
330  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
331 
332  double ts_scale;
335  AVRational framerate; /* framerate forced with -r */
338 
340 
342  struct { /* previous decoded subtitle and related variables */
344  int ret;
346  } prev_sub;
347 
348  struct sub2video {
349  int64_t last_pts;
350  int64_t end_pts;
351  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
353  int w, h;
354  unsigned int initialize; ///< marks if sub2video_update should force an initialization
355  } sub2video;
356 
357  /* decoded data from this stream goes into all those filters
358  * currently video and audio only */
361 
363 
364  /* hwaccel options */
369 
370  /* hwaccel context */
371  void *hwaccel_ctx;
376 
377  /* stats */
378  // combined size of all the packets read
379  uint64_t data_size;
380  /* number of packets successfully read for this stream */
381  uint64_t nb_packets;
382  // number of frames/samples retrieved from the decoder
383  uint64_t frames_decoded;
384  uint64_t samples_decoded;
385 
386  int64_t *dts_buffer;
388 
389  int got_output;
390 } InputStream;
391 
392 typedef struct InputFile {
394  int eof_reached; /* true if eof reached */
395  int eagain; /* true if last read attempt returned EAGAIN */
396  int ist_index; /* index of first stream in input_streams */
397  int loop; /* set number of times input stream should be looped */
398  int64_t duration; /* actual duration of the longest stream in a file
399  at the moment when looping happens */
400  AVRational time_base; /* time base of the duration */
402 
403  int64_t ts_offset;
404  int64_t last_ts;
405  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;
411  float readrate;
413 
415 
416 #if HAVE_THREADS
417  AVThreadMessageQueue *in_thread_queue;
418  pthread_t thread; /* thread reading from this file */
419  int non_blocking; /* reading packets from the thread should not block */
420  int joined; /* the thread has been joined */
421  int thread_queue_size; /* maximum number of queued packets */
422 #endif
423 } InputFile;
424 
432 };
433 
434 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
435 #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)
436 
437 extern const char *const forced_keyframes_const_names[];
438 
439 typedef enum {
442 } OSTFinished ;
443 
444 typedef struct OutputStream {
445  int file_index; /* file index */
446  int index; /* stream index in the output file */
447  int source_index; /* InputStream index */
448  AVStream *st; /* stream in the output file */
449  int encoding_needed; /* true if encoding needed for this stream */
451  /* input pts and corresponding output pts
452  for A/V sync */
453  struct InputStream *sync_ist; /* input stream to sync against */
454  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
455  /* pts of the first frame encoded for this stream, used for limiting
456  * recording time */
457  int64_t first_pts;
458  /* dts of the last packet sent to the muxer */
459  int64_t last_mux_dts;
460  // the timebase of the packets sent to the muxer
463 
465 
467  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
468  const AVCodec *enc;
469  int64_t max_frames;
475 
476  void *hwaccel_ctx;
477 
478  /* video only */
481  int is_cfr;
487 
489 
490  /* forced key frames */
492  int64_t *forced_kf_pts;
499 
500  /* audio only */
501  int *audio_channels_map; /* list of the channels id to pick from the source stream */
502  int audio_channels_mapped; /* number of channels in audio_channels_map */
503 
505  FILE *logfile;
506 
508  char *avfilter;
509  char *filters; ///< filtergraph associated to the -filter option
510  char *filters_script; ///< filtergraph script associated to the -filter_script option
511 
515  char *apad;
516  OSTFinished finished; /* no more packets should be written for this stream */
517  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
519 
520  // init_output_stream() has been called for this stream
521  // The encoder and the bitstream filters have been initialized and the stream
522  // parameters are set in the AVStream.
524 
526 
527  const char *attachment_filename;
530  char *disposition;
531 
533 
534  /* stats */
535  // combined size of all the packets written
536  uint64_t data_size;
537  // number of packets send to the muxer
538  uint64_t packets_written;
539  // number of frames/samples sent to the encoder
540  uint64_t frames_encoded;
541  uint64_t samples_encoded;
542 
543  /* packet quality factor */
544  int quality;
545 
547 
548  /* the packets are buffered here until the muxer is ready to be initialized */
550 
551  /*
552  * The size of the AVPackets' buffers in queue.
553  * Updated when a packet is either pushed or pulled from the queue.
554  */
556 
557  /* Threshold after which max_muxing_queue_size will be in effect */
559 
560  /* packet picture type */
562 
563  /* frame encode sum of squared error values */
564  int64_t error[4];
565 } OutputStream;
566 
567 typedef struct OutputFile {
570  int ost_index; /* index of the first stream in output_streams */
571  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
572  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
573  uint64_t limit_filesize; /* filesize limit expressed in bytes */
574 
575  int shortest;
576 
578 } OutputFile;
579 
580 extern InputStream **input_streams;
581 extern int nb_input_streams;
582 extern InputFile **input_files;
583 extern int nb_input_files;
584 
586 extern int nb_output_streams;
587 extern OutputFile **output_files;
588 extern int nb_output_files;
589 
590 extern FilterGraph **filtergraphs;
591 extern int nb_filtergraphs;
592 
593 extern char *vstats_filename;
594 extern char *sdp_filename;
595 
596 extern float audio_drift_threshold;
597 extern float dts_delta_threshold;
598 extern float dts_error_threshold;
599 
600 extern int audio_volume;
601 extern int audio_sync_method;
602 extern int video_sync_method;
603 extern float frame_drop_threshold;
604 extern int do_benchmark;
605 extern int do_benchmark_all;
606 extern int do_deinterlace;
607 extern int do_hex_dump;
608 extern int do_pkt_dump;
609 extern int copy_ts;
610 extern int start_at_zero;
611 extern int copy_tb;
612 extern int debug_ts;
613 extern int exit_on_error;
614 extern int abort_on_flags;
615 extern int print_stats;
616 extern int64_t stats_period;
617 extern int qp_hist;
618 extern int stdin_interaction;
619 extern int frame_bits_per_raw_sample;
620 extern AVIOContext *progress_avio;
621 extern float max_error_rate;
622 
623 extern char *filter_nbthreads;
624 extern int filter_complex_nbthreads;
625 extern int vstats_version;
626 extern int auto_conversion_filters;
627 
628 extern const AVIOInterruptCB int_cb;
629 
630 extern const OptionDef options[];
631 #if CONFIG_QSV
632 extern char *qsv_device;
633 #endif
634 extern HWDevice *filter_hw_device;
635 
636 
637 void term_init(void);
638 void term_exit(void);
639 
640 void show_usage(void);
641 
644 
646 
648 void check_filter_outputs(void);
652 
653 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub);
654 
656 
657 int ffmpeg_parse_options(int argc, char **argv);
658 
661 
662 HWDevice *hw_device_get_by_name(const char *name);
663 int hw_device_init_from_string(const char *arg, HWDevice **dev);
664 void hw_device_free_all(void);
665 
669 
671 
672 #endif /* FFTOOLS_FFMPEG_H */
OptionsContext::readrate
float readrate
Definition: ffmpeg.h:114
AVSubtitle
Definition: avcodec.h:2289
OptionsContext::nb_hwaccels
int nb_hwaccels
Definition: ffmpeg.h:123
OptionsContext::nb_codec_names
int nb_codec_names
Definition: ffmpeg.h:96
InputFilter::sample_aspect_ratio
AVRational sample_aspect_ratio
Definition: ffmpeg.h:246
AVCodec
AVCodec.
Definition: codec.h:202
OptionsContext::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:111
OutputStream::data_size
uint64_t data_size
Definition: ffmpeg.h:536
InputFile::start_time
int64_t start_time
Definition: ffmpeg.h:405
audio_sync_method
int audio_sync_method
Definition: ffmpeg_opt.c:147
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
OptionsContext::stop_time
int64_t stop_time
Definition: ffmpeg.h:145
StreamMap::file_index
int file_index
Definition: ffmpeg.h:74
OutputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:261
FKF_PREV_FORCED_T
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:429
OptionsContext::canvas_sizes
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:205
InputStream::hwaccel_device
char * hwaccel_device
Definition: ffmpeg.h:367
OptionsContext::dump_attachment
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:120
OutputStream::attachment_filename
const char * attachment_filename
Definition: ffmpeg.h:527
configure_filtergraph
int configure_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:966
OptionsContext::nb_audio_sample_rate
int nb_audio_sample_rate
Definition: ffmpeg.h:100
OutputStream::frame_number
int frame_number
Definition: ffmpeg.h:450
nb_filtergraphs
int nb_filtergraphs
Definition: ffmpeg.c:159
OptionsContext::nb_max_frame_rates
int nb_max_frame_rates
Definition: ffmpeg.h:104
OptionsContext::intra_matrices
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:181
video_sync_method
int video_sync_method
Definition: ffmpeg_opt.c:148
InputFilter::width
int width
Definition: ffmpeg.h:245
OptionsContext::nb_time_bases
int nb_time_bases
Definition: ffmpeg.h:226
InputFilter::displaymatrix
int32_t * displaymatrix
Definition: ffmpeg.h:253
OutputStream::last_dropped
int last_dropped
Definition: ffmpeg.h:473
FKF_PREV_FORCED_N
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:428
InputFile::pkt
AVPacket * pkt
Definition: ffmpeg.h:414
FilterGraph::graph_desc
const char * graph_desc
Definition: ffmpeg.h:284
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
InputStream::data_size
uint64_t data_size
Definition: ffmpeg.h:379
OutputStream::enc_ctx
AVCodecContext * enc_ctx
Definition: ffmpeg.h:466
OptionsContext::nb_rc_overrides
int nb_rc_overrides
Definition: ffmpeg.h:180
sub
static float sub(float src0, float src1)
Definition: dnn_backend_native_layer_mathbinary.c:31
thread.h
FilterGraph::inputs
InputFilter ** inputs
Definition: ffmpeg.h:289
InputFile::nb_streams_warn
int nb_streams_warn
Definition: ffmpeg.h:409
OptionsContext::hwaccels
SpecifierOpt * hwaccels
Definition: ffmpeg.h:122
OptionsContext::apad
SpecifierOpt * apad
Definition: ffmpeg.h:217
frame_drop_threshold
float frame_drop_threshold
Definition: ffmpeg_opt.c:149
rational.h
InputStream::dec_ctx
AVCodecContext * dec_ctx
Definition: ffmpeg.h:304
OptionsContext::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:146
InputStream::user_set_discard
int user_set_discard
Definition: ffmpeg.h:299
StreamMap::sync_stream_index
int sync_stream_index
Definition: ffmpeg.h:77
OptionsContext::rc_overrides
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:179
OutputStream::packets_written
uint64_t packets_written
Definition: ffmpeg.h:538
OptionsContext::nb_metadata
int nb_metadata
Definition: ffmpeg.h:162
nb_input_streams
int nb_input_streams
Definition: ffmpeg.c:149
OptionsContext::nb_hwaccel_devices
int nb_hwaccel_devices
Definition: ffmpeg.h:125
InputFile::readrate
float readrate
Definition: ffmpeg.h:411
OutputStream::keep_pix_fmt
int keep_pix_fmt
Definition: ffmpeg.h:532
OptionsContext::nb_attachments
int nb_attachments
Definition: ffmpeg.h:140
OutputFile::start_time
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:572
OptionsContext::frame_aspect_ratios
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:177
progress_avio
AVIOContext * progress_avio
Definition: ffmpeg.c:144
ffmpeg_parse_options
int ffmpeg_parse_options(int argc, char **argv)
input_streams
InputStream ** input_streams
Definition: ffmpeg.c:148
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:310
InputFile::rate_emu
int rate_emu
Definition: ffmpeg.h:410
OutputStream::unavailable
int unavailable
Definition: ffmpeg.h:517
OptionsContext::mux_max_delay
float mux_max_delay
Definition: ffmpeg.h:148
OptionsContext::nb_chroma_intra_matrices
int nb_chroma_intra_matrices
Definition: ffmpeg.h:186
OptionsContext::nb_pass
int nb_pass
Definition: ffmpeg.h:208
OutputStream::rotate_overridden
int rotate_overridden
Definition: ffmpeg.h:484
FKF_T
@ FKF_T
Definition: ffmpeg.h:430
OutputStream::hwaccel_ctx
void * hwaccel_ctx
Definition: ffmpeg.h:476
OptionsContext::subtitle_disable
int subtitle_disable
Definition: ffmpeg.h:154
OptionsContext::nb_apad
int nb_apad
Definition: ffmpeg.h:218
OptionsContext::qscale
SpecifierOpt * qscale
Definition: ffmpeg.h:171
OutputStream::index
int index
Definition: ffmpeg.h:446
b
#define b
Definition: input.c:40
FilterGraph::index
int index
Definition: ffmpeg.h:283
OptionsContext::inter_matrices
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:183
AudioChannelMap::stream_idx
int stream_idx
Definition: ffmpeg.h:82
InputStream::nb_filters
int nb_filters
Definition: ffmpeg.h:360
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:513
OutputStream::sws_dict
AVDictionary * sws_dict
Definition: ffmpeg.h:513
nb_output_files
int nb_output_files
Definition: ffmpeg.c:156
show_usage
void show_usage(void)
Definition: ffmpeg_opt.c:3367
FilterGraph::nb_inputs
int nb_inputs
Definition: ffmpeg.h:290
OptionsContext::bitexact
int bitexact
Definition: ffmpeg.h:150
OptionsContext::audio_channels
SpecifierOpt * audio_channels
Definition: ffmpeg.h:97
OptionsContext::nb_frame_rates
int nb_frame_rates
Definition: ffmpeg.h:102
AVDictionary
Definition: dict.c:30
HWDevice
Definition: ffmpeg.h:65
hw_device_init_from_string
int hw_device_init_from_string(const char *arg, HWDevice **dev)
Definition: ffmpeg_hw.c:94
nb_input_files
int nb_input_files
Definition: ffmpeg.c:151
InputStream::decoding_needed
int decoding_needed
Definition: ffmpeg.h:300
OptionsContext::format
const char * format
Definition: ffmpeg.h:93
OutputStream::max_frames
int64_t max_frames
Definition: ffmpeg.h:469
OutputStream::rotate_override_value
double rotate_override_value
Definition: ffmpeg.h:486
OptionsContext::nb_disposition
int nb_disposition
Definition: ffmpeg.h:222
qp_hist
int qp_hist
Definition: ffmpeg_opt.c:161
AVBSFContext
The bitstream filter state.
Definition: bsf.h:47
AVIOInterruptCB
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
OptionDef
Definition: cmdutils.h:163
InputFilter::channel_layout
uint64_t channel_layout
Definition: ffmpeg.h:250
OutputStream::forced_keyframes_pexpr
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:496
InputFilter::ist
struct InputStream * ist
Definition: ffmpeg.h:235
init_simple_filtergraph
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
OptionsContext::nb_guess_layout_max
int nb_guess_layout_max
Definition: ffmpeg.h:216
AVFifoBuffer
Definition: fifo.h:31
InputFile::eof_reached
int eof_reached
Definition: ffmpeg.h:394
OutputStream::encoding_needed
int encoding_needed
Definition: ffmpeg.h:449
InputStream
Definition: ffmpeg.h:295
filter_nbthreads
char * filter_nbthreads
Definition: ffmpeg_opt.c:165
OptionsContext::chapters_input_file
int chapters_input_file
Definition: ffmpeg.h:142
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:157
OutputStream::forced_kf_pts
int64_t * forced_kf_pts
Definition: ffmpeg.h:492
OptionsContext::nb_presets
int nb_presets
Definition: ffmpeg.h:192
stats_period
int64_t stats_period
Definition: ffmpeg_opt.c:169
OptionsContext::rate_emu
int rate_emu
Definition: ffmpeg.h:113
do_deinterlace
int do_deinterlace
dts_delta_threshold
float dts_delta_threshold
Definition: ffmpeg_opt.c:143
fifo.h
OutputStream::filters
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:509
bsf.h
vstats_version
int vstats_version
Definition: ffmpeg_opt.c:167
OutputStream::initialized
int initialized
Definition: ffmpeg.h:523
OptionsContext::nb_dump_attachment
int nb_dump_attachment
Definition: ffmpeg.h:121
OptionsContext::g
OptionGroup * g
Definition: ffmpeg.h:87
OutputStream::disposition
char * disposition
Definition: ffmpeg.h:530
InputStream::sub2video
struct InputStream::sub2video sub2video
InputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:238
StreamMap::disabled
int disabled
Definition: ffmpeg.h:73
AudioChannelMap::ostream_idx
int ostream_idx
Definition: ffmpeg.h:83
OutputStream::logfile_prefix
char * logfile_prefix
Definition: ffmpeg.h:504
OptionsContext::nb_top_field_first
int nb_top_field_first
Definition: ffmpeg.h:188
InputStream::decoder_opts
AVDictionary * decoder_opts
Definition: ffmpeg.h:334
OptionsContext::nb_autorotate
int nb_autorotate
Definition: ffmpeg.h:129
OutputStream::forced_keyframes_expr_const_values
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:497
InputStream::filter_in_rescale_delta_last
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:321
OptionsContext::nb_reinit_filters
int nb_reinit_filters
Definition: ffmpeg.h:202
InputStream::nb_packets
uint64_t nb_packets
Definition: ffmpeg.h:381
OutputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:272
hw_device_setup_for_decode
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:317
InputFilter::frame_queue
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:240
OptionsContext
Definition: ffmpeg.h:86
ist
fg inputs[0] ist
Definition: ffmpeg_filter.c:182
assert_avoptions
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:683
OptionsContext::time_bases
SpecifierOpt * time_bases
Definition: ffmpeg.h:225
qsv_init
int qsv_init(AVCodecContext *s)
OutputFile::opts
AVDictionary * opts
Definition: ffmpeg.h:569
InputStream::sub2video::last_pts
int64_t last_pts
Definition: ffmpeg.h:349
do_pkt_dump
int do_pkt_dump
Definition: ffmpeg_opt.c:153
OptionsContext::nb_audio_channel_maps
int nb_audio_channel_maps
Definition: ffmpeg.h:135
InputFile
Definition: ffmpeg.h:392
OptionsContext::recording_time
int64_t recording_time
Definition: ffmpeg.h:144
input_files
InputFile ** input_files
Definition: ffmpeg.c:150
OptionsContext::metadata_chapters_manual
int metadata_chapters_manual
Definition: ffmpeg.h:138
OptionsContext::pass
SpecifierOpt * pass
Definition: ffmpeg.h:207
OutputStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg.h:528
OutputFilter::sample_rates
const int * sample_rates
Definition: ffmpeg.h:279
OptionsContext::nb_stream_maps
int nb_stream_maps
Definition: ffmpeg.h:133
OptionsContext::audio_disable
int audio_disable
Definition: ffmpeg.h:153
InputStream::first_dts
int64_t first_dts
dts of the first packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:314
InputStream::hwaccel_pix_fmt
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:374
OutputFile::shortest
int shortest
Definition: ffmpeg.h:575
OutputStream::last_nb0_frames
int last_nb0_frames[3]
Definition: ffmpeg.h:474
InputStream::dts
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:315
AudioChannelMap
Definition: ffmpeg.h:81
OptionsContext::presets
SpecifierOpt * presets
Definition: ffmpeg.h:191
OptionsContext::copy_initial_nonkeyframes
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:193
OutputStream::sync_opts
int64_t sync_opts
Definition: ffmpeg.h:454
OptionsContext::codec_names
SpecifierOpt * codec_names
Definition: ffmpeg.h:95
term_init
void term_init(void)
Definition: ffmpeg.c:408
OptionsContext::nb_program
int nb_program
Definition: ffmpeg.h:224
StreamMap::linklabel
char * linklabel
Definition: ffmpeg.h:78
OutputFilter::width
int width
Definition: ffmpeg.h:269
HWACCEL_GENERIC
@ HWACCEL_GENERIC
Definition: ffmpeg.h:62
OutputStream::forced_keyframes
char * forced_keyframes
Definition: ffmpeg.h:495
InputStream::cfr_next_pts
int64_t cfr_next_pts
Definition: ffmpeg.h:328
s
#define s(width, name)
Definition: cbs_vp9.c:257
FilterGraph::outputs
OutputFilter ** outputs
Definition: ffmpeg.h:291
vstats_filename
char * vstats_filename
Definition: ffmpeg_opt.c:139
OutputStream::frame_aspect_ratio
AVRational frame_aspect_ratio
Definition: ffmpeg.h:488
InputStream::framerate
AVRational framerate
Definition: ffmpeg.h:335
OutputStream::mux_timebase
AVRational mux_timebase
Definition: ffmpeg.h:461
ENCODER_FINISHED
@ ENCODER_FINISHED
Definition: ffmpeg.h:440
OutputStream::audio_channels_mapped
int audio_channels_mapped
Definition: ffmpeg.h:502
InputFilter
Definition: ffmpeg.h:233
OutputStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg.h:529
AVHWDeviceType
AVHWDeviceType
Definition: hwcontext.h:27
OutputFilter::ost
struct OutputStream * ost
Definition: ffmpeg.h:260
output_streams
OutputStream ** output_streams
Definition: ffmpeg.c:153
OptionsContext::metadata_streams_manual
int metadata_streams_manual
Definition: ffmpeg.h:137
forced_keyframes_const
forced_keyframes_const
Definition: ffmpeg.h:425
MUXER_FINISHED
@ MUXER_FINISHED
Definition: ffmpeg.h:441
OutputStream::avfilter
char * avfilter
Definition: ffmpeg.h:508
InputStream::sub2video::sub_queue
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:351
audio_drift_threshold
float audio_drift_threshold
Definition: ffmpeg_opt.c:142
InputStream::filters
InputFilter ** filters
Definition: ffmpeg.h:359
OptionsContext::nb_copy_initial_nonkeyframes
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:194
max_error_rate
float max_error_rate
Definition: ffmpeg_opt.c:164
AVExpr
Definition: eval.c:157
OutputFile::header_written
int header_written
Definition: ffmpeg.h:577
OptionsContext::sample_fmts
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:169
OptionsContext::shortest
int shortest
Definition: ffmpeg.h:149
InputStream::hwaccel_retrieve_data
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:373
InputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:236
AVThreadMessageQueue
Definition: threadmessage.c:25
OptionsContext::accurate_seek
int accurate_seek
Definition: ffmpeg.h:115
OutputStream::last_frame
AVFrame * last_frame
Definition: ffmpeg.h:471
OptionsContext::nb_canvas_sizes
int nb_canvas_sizes
Definition: ffmpeg.h:206
OptionsContext::nb_max_muxing_queue_size
int nb_max_muxing_queue_size
Definition: ffmpeg.h:212
arg
const char * arg
Definition: jacosubdec.c:67
OutputStream::encoder_opts
AVDictionary * encoder_opts
Definition: ffmpeg.h:512
OptionsContext::start_time
int64_t start_time
Definition: ffmpeg.h:90
InputStream::pts
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:318
AVFormatContext
Format I/O context.
Definition: avformat.h:1193
OutputFilter::height
int height
Definition: ffmpeg.h:269
OptionsContext::nb_filter_scripts
int nb_filter_scripts
Definition: ffmpeg.h:200
OptionsContext::reinit_filters
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:201
OutputFilter::name
uint8_t * name
Definition: ffmpeg.h:262
OutputFilter::channel_layouts
const uint64_t * channel_layouts
Definition: ffmpeg.h:278
InputStream::sub2video::w
int w
Definition: ffmpeg.h:353
InputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:336
InputStream::st
AVStream * st
Definition: ffmpeg.h:297
forced_keyframes_const_names
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
OptionsContext::filters
SpecifierOpt * filters
Definition: ffmpeg.h:197
OptionsContext::frame_sizes
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:105
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
OptionsContext::fix_sub_duration
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:203
OptionsContext::codec_tags
SpecifierOpt * codec_tags
Definition: ffmpeg.h:167
InputStream::next_pts
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:317
frame_bits_per_raw_sample
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:163
OptionsContext::force_fps
SpecifierOpt * force_fps
Definition: ffmpeg.h:175
OptionsContext::metadata_global_manual
int metadata_global_manual
Definition: ffmpeg.h:136
OptionsContext::nb_intra_matrices
int nb_intra_matrices
Definition: ffmpeg.h:182
OutputStream::audio_channels_map
int * audio_channels_map
Definition: ffmpeg.h:501
InputStream::hwaccel_id
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:365
InputFilter::channels
int channels
Definition: ffmpeg.h:249
OutputStream::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:479
InputFilter::eof
int eof
Definition: ffmpeg.h:255
InputStream::fix_sub_duration
int fix_sub_duration
Definition: ffmpeg.h:341
OutputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:483
InputStream::hwaccel_output_format
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:368
OutputFilter::channel_layout
uint64_t channel_layout
Definition: ffmpeg.h:273
OptionsContext::max_frames
SpecifierOpt * max_frames
Definition: ffmpeg.h:163
AVFilterGraph
Definition: avfilter.h:845
do_benchmark_all
int do_benchmark_all
Definition: ffmpeg_opt.c:151
filtergraphs
FilterGraph ** filtergraphs
Definition: ffmpeg.c:158
InputStream::min_pts
int64_t min_pts
Definition: ffmpeg.h:323
OptionGroup
Definition: cmdutils.h:315
OptionsContext::program
SpecifierOpt * program
Definition: ffmpeg.h:223
FilterGraph::nb_outputs
int nb_outputs
Definition: ffmpeg.h:292
OutputStream::logfile
FILE * logfile
Definition: ffmpeg.h:505
swresample.h
InputStream::sub2video::initialize
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:354
guess_input_channel_layout
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2119
OptionsContext::nb_metadata_map
int nb_metadata_map
Definition: ffmpeg.h:190
OptionsContext::nb_filters
int nb_filters
Definition: ffmpeg.h:198
InputStream::frames_decoded
uint64_t frames_decoded
Definition: ffmpeg.h:383
OutputStream::enc
const AVCodec * enc
Definition: ffmpeg.h:468
InputStream::next_dts
int64_t next_dts
Definition: ffmpeg.h:313
FilterGraph
Definition: ffmpeg.h:282
print_stats
int print_stats
Definition: ffmpeg_opt.c:160
InputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:234
options
const OptionDef options[]
eval.h
OutputStream::force_fps
int force_fps
Definition: ffmpeg.h:482
OptionsContext::nb_frame_aspect_ratios
int nb_frame_aspect_ratios
Definition: ffmpeg.h:178
OutputStream::filter
OutputFilter * filter
Definition: ffmpeg.h:507
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
sub2video_update
void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub)
Definition: ffmpeg.c:241
InputStream::hwaccel_device_type
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:366
OptionsContext::thread_queue_size
int thread_queue_size
Definition: ffmpeg.h:116
AVMediaType
AVMediaType
Definition: avutil.h:199
InputStream::decoded_frame
AVFrame * decoded_frame
Definition: ffmpeg.h:306
InputStream::wrap_correction_done
int wrap_correction_done
Definition: ffmpeg.h:319
InputStream::start
int64_t start
Definition: ffmpeg.h:310
threadmessage.h
OutputStream::error
int64_t error[4]
Definition: ffmpeg.h:564
InputStream::file_index
int file_index
Definition: ffmpeg.h:296
OutputStream::forced_kf_count
int forced_kf_count
Definition: ffmpeg.h:493
InputFile::last_ts
int64_t last_ts
Definition: ffmpeg.h:404
FilterGraph::graph
AVFilterGraph * graph
Definition: ffmpeg.h:286
InputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:307
InputStream::got_output
int got_output
Definition: ffmpeg.h:343
StreamMap
Definition: ffmpeg.h:72
copy_ts
int copy_ts
Definition: ffmpeg_opt.c:154
OptionsContext::filter_scripts
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:199
avio.h
copy_tb
int copy_tb
Definition: ffmpeg_opt.c:156
InputStream::prev_sub
struct InputStream::@2 prev_sub
OptionsContext::seek_timestamp
int seek_timestamp
Definition: ffmpeg.h:92
InputStream::hwaccel_retrieved_pix_fmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:375
hwaccel_decode_init
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:542
OptionsContext::top_field_first
SpecifierOpt * top_field_first
Definition: ffmpeg.h:187
HWDevice::device_ref
AVBufferRef * device_ref
Definition: ffmpeg.h:68
OutputStream::source_index
int source_index
Definition: ffmpeg.h:447
OptionsContext::nb_discard
int nb_discard
Definition: ffmpeg.h:220
OSTFinished
OSTFinished
Definition: ffmpeg.h:439
OutputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:259
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
InputStream::samples_decoded
uint64_t samples_decoded
Definition: ffmpeg.h:384
OutputFile::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:573
check_filter_outputs
void check_filter_outputs(void)
Definition: ffmpeg_filter.c:635
OptionsContext::metadata
SpecifierOpt * metadata
Definition: ffmpeg.h:161
InputStream::max_pts
int64_t max_pts
Definition: ffmpeg.h:324
do_benchmark
int do_benchmark
Definition: ffmpeg_opt.c:150
OptionsContext::nb_autoscale
int nb_autoscale
Definition: ffmpeg.h:230
pthread_t
Definition: os2threads.h:44
OutputStream::pict_type
int pict_type
Definition: ffmpeg.h:561
OptionsContext::frame_rates
SpecifierOpt * frame_rates
Definition: ffmpeg.h:101
OutputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:266
InputFile::time_base
AVRational time_base
Definition: ffmpeg.h:400
InputFile::duration
int64_t duration
Definition: ffmpeg.h:398
StreamMap::sync_file_index
int sync_file_index
Definition: ffmpeg.h:76
OutputStream::first_pts
int64_t first_pts
Definition: ffmpeg.h:457
HWACCEL_AUTO
@ HWACCEL_AUTO
Definition: ffmpeg.h:61
OptionsContext::autorotate
SpecifierOpt * autorotate
Definition: ffmpeg.h:128
OutputStream::max_frame_rate
AVRational max_frame_rate
Definition: ffmpeg.h:480
InputStream::guess_layout_max
int guess_layout_max
Definition: ffmpeg.h:337
OutputStream::filters_script
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:510
OutputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:472
OutputStream::apad
char * apad
Definition: ffmpeg.h:515
OptionsContext::nb_hwaccel_output_formats
int nb_hwaccel_output_formats
Definition: ffmpeg.h:127
init_complex_filtergraph
int init_complex_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:305
OptionsContext::forced_key_frames
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:173
OptionsContext::metadata_map
SpecifierOpt * metadata_map
Definition: ffmpeg.h:189
InputStream::ret
int ret
Definition: ffmpeg.h:344
StreamMap::stream_index
int stream_index
Definition: ffmpeg.h:75
OptionsContext::nb_qscale
int nb_qscale
Definition: ffmpeg.h:172
OptionsContext::stream_maps
StreamMap * stream_maps
Definition: ffmpeg.h:132
OptionsContext::nb_ts_scale
int nb_ts_scale
Definition: ffmpeg.h:119
OptionsContext::audio_sample_rate
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:99
OptionsContext::start_time_eof
int64_t start_time_eof
Definition: ffmpeg.h:91
OptionsContext::nb_fix_sub_duration
int nb_fix_sub_duration
Definition: ffmpeg.h:204
OutputStream::sync_ist
struct InputStream * sync_ist
Definition: ffmpeg.h:453
exit_on_error
int exit_on_error
Definition: ffmpeg_opt.c:158
output_files
OutputFile ** output_files
Definition: ffmpeg.c:155
OutputFile::ost_index
int ost_index
Definition: ffmpeg.h:570
OptionsContext::nb_frame_pix_fmts
int nb_frame_pix_fmts
Definition: ffmpeg.h:108
InputStream::hwaccel_uninit
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:372
hw_device_setup_for_filter
int hw_device_setup_for_filter(FilterGraph *fg)
Definition: ffmpeg_hw.c:551
InputFile::ctx
AVFormatContext * ctx
Definition: ffmpeg.h:393
InputFile::accurate_seek
int accurate_seek
Definition: ffmpeg.h:412
videotoolbox_init
int videotoolbox_init(AVCodecContext *s)
OptionsContext::nb_copy_prior_start
int nb_copy_prior_start
Definition: ffmpeg.h:196
OutputStream::muxing_queue
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:549
OutputStream::ref_par
AVCodecParameters * ref_par
Definition: ffmpeg.h:467
OptionsContext::bitstream_filters
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:165
OptionsContext::streamid_map
int * streamid_map
Definition: ffmpeg.h:158
InputFile::recording_time
int64_t recording_time
Definition: ffmpeg.h:406
avcodec.h
OptionsContext::passlogfiles
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:209
InputFile::loop
int loop
Definition: ffmpeg.h:397
SpecifierOpt
Definition: cmdutils.h:151
OptionsContext::autoscale
SpecifierOpt * autoscale
Definition: ffmpeg.h:229
AVStream
Stream structure.
Definition: avformat.h:928
OptionsContext::nb_bitstream_filters
int nb_bitstream_filters
Definition: ffmpeg.h:166
pixfmt.h
OutputStream::max_muxing_queue_size
int max_muxing_queue_size
Definition: ffmpeg.h:546
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:159
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
InputFilter::name
uint8_t * name
Definition: ffmpeg.h:237
OptionsContext::nb_streamid_map
int nb_streamid_map
Definition: ffmpeg.h:159
sdp_filename
char * sdp_filename
Definition: ffmpeg_opt.c:140
OptionsContext::audio_channel_maps
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:134
OutputStream::forced_kf_ref_pts
int64_t forced_kf_ref_pts
Definition: ffmpeg.h:491
InputStream::reinit_filters
int reinit_filters
Definition: ffmpeg.h:362
hw_device_free_all
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:288
avformat.h
InputFile::eagain
int eagain
Definition: ffmpeg.h:395
HWAccelID
HWAccelID
Definition: ffmpeg.h:59
dict.h
InputFile::ist_index
int ist_index
Definition: ffmpeg.h:396
OptionsContext::nb_sample_fmts
int nb_sample_fmts
Definition: ffmpeg.h:170
ost
OutputStream * ost
Definition: ffmpeg_filter.c:163
InputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:248
OptionsContext::nb_enc_time_bases
int nb_enc_time_bases
Definition: ffmpeg.h:228
OptionsContext::nb_max_frames
int nb_max_frames
Definition: ffmpeg.h:164
OptionsContext::disposition
SpecifierOpt * disposition
Definition: ffmpeg.h:221
ifilter_parameters_from_frame
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
Definition: ffmpeg_filter.c:1139
OutputFilter::format
int format
Definition: ffmpeg.h:271
filter_hw_device
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:137
AVCodecContext
main external API structure.
Definition: avcodec.h:383
hw_device_setup_for_encode
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:445
OptionsContext::mux_preload
float mux_preload
Definition: ffmpeg.h:147
HWDevice::name
const char * name
Definition: ffmpeg.h:66
InputFilter::format
int format
Definition: ffmpeg.h:243
OutputStream::finished
OSTFinished finished
Definition: ffmpeg.h:516
OptionsContext::nb_audio_channels
int nb_audio_channels
Definition: ffmpeg.h:98
InputStream::prev_pkt_pts
int64_t prev_pkt_pts
Definition: ffmpeg.h:309
OptionsContext::guess_layout_max
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:215
OptionsContext::enc_time_bases
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:227
avfilter.h
OutputFilter::formats
const int * formats
Definition: ffmpeg.h:277
OutputStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg.h:459
OptionsContext::video_disable
int video_disable
Definition: ffmpeg.h:152
OutputStream::quality
int quality
Definition: ffmpeg.h:544
OptionsContext::nb_forced_key_frames
int nb_forced_key_frames
Definition: ffmpeg.h:174
OptionsContext::max_frame_rates
SpecifierOpt * max_frame_rates
Definition: ffmpeg.h:103
InputStream::nb_samples
int64_t nb_samples
Definition: ffmpeg.h:330
InputFilter::height
int height
Definition: ffmpeg.h:245
OptionsContext::frame_pix_fmts
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:107
OutputStream::frames_encoded
uint64_t frames_encoded
Definition: ffmpeg.h:540
HWACCEL_NONE
@ HWACCEL_NONE
Definition: ffmpeg.h:60
InputFile::ts_offset
int64_t ts_offset
Definition: ffmpeg.h:403
OptionsContext::nb_frame_sizes
int nb_frame_sizes
Definition: ffmpeg.h:106
OptionsContext::hwaccel_devices
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:124
InputStream::discard
int discard
Definition: ffmpeg.h:298
OptionsContext::max_muxing_queue_size
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:211
AVFilterContext
An instance of a filter.
Definition: avfilter.h:386
remove_avoptions
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:674
OutputFilter
Definition: ffmpeg.h:258
InputStream::sub2video::frame
AVFrame * frame
Definition: ffmpeg.h:352
OptionsContext::nb_muxing_queue_data_threshold
int nb_muxing_queue_data_threshold
Definition: ffmpeg.h:214
OptionsContext::nb_inter_matrices
int nb_inter_matrices
Definition: ffmpeg.h:184
OptionsContext::muxing_queue_data_threshold
SpecifierOpt * muxing_queue_data_threshold
Definition: ffmpeg.h:213
avutil.h
start_at_zero
int start_at_zero
Definition: ffmpeg_opt.c:155
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
OutputStream::file_index
int file_index
Definition: ffmpeg.h:445
audio_volume
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Definition: packet.h:350
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Definition: avfilter.h:1005
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Definition: ffmpeg.h:305
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