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 
35 #include "libavfilter/avfilter.h"
36 
37 #include "libavutil/avutil.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/eval.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/hwcontext.h"
42 #include "libavutil/pixfmt.h"
43 #include "libavutil/rational.h"
44 #include "libavutil/thread.h"
46 
48 
49 #define VSYNC_AUTO -1
50 #define VSYNC_PASSTHROUGH 0
51 #define VSYNC_CFR 1
52 #define VSYNC_VFR 2
53 #define VSYNC_VSCFR 0xfe
54 #define VSYNC_DROP 0xff
55 
56 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
57 
58 enum HWAccelID {
64 };
65 
66 typedef struct HWAccel {
67  const char *name;
69  enum HWAccelID id;
71 } HWAccel;
72 
73 typedef struct HWDevice {
74  const char *name;
77 } HWDevice;
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 
117 
118  /* input options */
120  int loop;
121  int rate_emu;
124 
137 
138  /* output options */
141  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
142  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
146  const char **attachments;
148 
150 
151  int64_t recording_time;
152  int64_t stop_time;
153  uint64_t limit_filesize;
154  float mux_preload;
156  int shortest;
157  int bitexact;
158 
163 
164  /* indexed by output file stream index */
167 
215  int nb_pass;
225  int nb_apad;
239 
240 typedef struct InputFilter {
242  struct InputStream *ist;
244  uint8_t *name;
245  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
246 
248 
249  // parameters configured for this input
250  int format;
251 
252  int width, height;
254 
256  int channels;
257  uint64_t channel_layout;
258 
260 
261  int eof;
262 } InputFilter;
263 
264 typedef struct OutputFilter {
266  struct OutputStream *ost;
268  uint8_t *name;
269 
270  /* temporary storage until stream maps are processed */
273 
274  /* desired output stream properties */
275  int width, height;
277  int format;
279  uint64_t channel_layout;
280 
281  // those are only set if no format is specified and the encoder gives us multiple options
282  int *formats;
283  uint64_t *channel_layouts;
285 } OutputFilter;
286 
287 typedef struct FilterGraph {
288  int index;
289  const char *graph_desc;
290 
293 
298 } FilterGraph;
299 
300 typedef struct InputStream {
303  int discard; /* true if stream data should be discarded */
305  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
306 #define DECODING_FOR_OST 1
307 #define DECODING_FOR_FILTER 2
308 
310  const AVCodec *dec;
312  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
314 
315  int64_t start; /* time when read started */
316  /* predicted dts of the next packet read for this stream or (when there are
317  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
318  int64_t next_dts;
319  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
320 
321  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
322  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
324 
326 
327  int64_t min_pts; /* pts with the smallest value in a current stream */
328  int64_t max_pts; /* pts with the higher value in a current stream */
329 
330  // when forcing constant input framerate through -r,
331  // this contains the pts that will be given to the next decoded frame
332  int64_t cfr_next_pts;
333 
334  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
335 
336  double ts_scale;
339  AVRational framerate; /* framerate forced with -r */
342 
344 
346  struct { /* previous decoded subtitle and related variables */
348  int ret;
350  } prev_sub;
351 
352  struct sub2video {
353  int64_t last_pts;
354  int64_t end_pts;
355  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
357  int w, h;
358  unsigned int initialize; ///< marks if sub2video_update should force an initialization
359  } sub2video;
360 
361  int dr1;
362 
363  /* decoded data from this stream goes into all those filters
364  * currently video and audio only */
367 
369 
370  /* hwaccel options */
375 
376  /* hwaccel context */
377  void *hwaccel_ctx;
384 
385  /* stats */
386  // combined size of all the packets read
387  uint64_t data_size;
388  /* number of packets successfully read for this stream */
389  uint64_t nb_packets;
390  // number of frames/samples retrieved from the decoder
391  uint64_t frames_decoded;
392  uint64_t samples_decoded;
393 
394  int64_t *dts_buffer;
396 
397  int got_output;
398 } InputStream;
399 
400 typedef struct InputFile {
402  int eof_reached; /* true if eof reached */
403  int eagain; /* true if last read attempt returned EAGAIN */
404  int ist_index; /* index of first stream in input_streams */
405  int loop; /* set number of times input stream should be looped */
406  int64_t duration; /* actual duration of the longest stream in a file
407  at the moment when looping happens */
408  AVRational time_base; /* time base of the duration */
410 
411  int64_t ts_offset;
412  int64_t last_ts;
413  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
415  int64_t recording_time;
416  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
417  from ctx.nb_streams if new streams appear during av_read_frame() */
418  int nb_streams_warn; /* number of streams that the user was warned of */
419  int rate_emu;
421 
423 
424 #if HAVE_THREADS
425  AVThreadMessageQueue *in_thread_queue;
426  pthread_t thread; /* thread reading from this file */
427  int non_blocking; /* reading packets from the thread should not block */
428  int joined; /* the thread has been joined */
429  int thread_queue_size; /* maximum number of queued packets */
430 #endif
431 } InputFile;
432 
440 };
441 
442 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
443 #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)
444 
445 extern const char *const forced_keyframes_const_names[];
446 
447 typedef enum {
450 } OSTFinished ;
451 
452 typedef struct OutputStream {
453  int file_index; /* file index */
454  int index; /* stream index in the output file */
455  int source_index; /* InputStream index */
456  AVStream *st; /* stream in the output file */
457  int encoding_needed; /* true if encoding needed for this stream */
459  /* input pts and corresponding output pts
460  for A/V sync */
461  struct InputStream *sync_ist; /* input stream to sync against */
462  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
463  /* pts of the first frame encoded for this stream, used for limiting
464  * recording time */
465  int64_t first_pts;
466  /* dts of the last packet sent to the muxer */
467  int64_t last_mux_dts;
468  // the timebase of the packets sent to the muxer
471 
473 
475  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
476  const AVCodec *enc;
477  int64_t max_frames;
483 
484  void *hwaccel_ctx;
485 
486  /* video only */
489  int is_cfr;
495 
497 
498  /* forced key frames */
500  int64_t *forced_kf_pts;
506 
507  /* audio only */
508  int *audio_channels_map; /* list of the channels id to pick from the source stream */
509  int audio_channels_mapped; /* number of channels in audio_channels_map */
510 
512  FILE *logfile;
513 
515  char *avfilter;
516  char *filters; ///< filtergraph associated to the -filter option
517  char *filters_script; ///< filtergraph script associated to the -filter_script option
518 
523  char *apad;
524  OSTFinished finished; /* no more packets should be written for this stream */
525  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
527 
528  // init_output_stream() has been called for this stream
529  // The encoder and the bitstream filters have been initialized and the stream
530  // parameters are set in the AVStream.
532 
534 
535  const char *attachment_filename;
538  char *disposition;
539 
541 
542  /* stats */
543  // combined size of all the packets written
544  uint64_t data_size;
545  // number of packets send to the muxer
546  uint64_t packets_written;
547  // number of frames/samples sent to the encoder
548  uint64_t frames_encoded;
549  uint64_t samples_encoded;
550 
551  /* packet quality factor */
552  int quality;
553 
555 
556  /* the packets are buffered here until the muxer is ready to be initialized */
558 
559  /*
560  * The size of the AVPackets' buffers in queue.
561  * Updated when a packet is either pushed or pulled from the queue.
562  */
564 
565  /* Threshold after which max_muxing_queue_size will be in effect */
567 
568  /* packet picture type */
570 
571  /* frame encode sum of squared error values */
572  int64_t error[4];
573 } OutputStream;
574 
575 typedef struct OutputFile {
578  int ost_index; /* index of the first stream in output_streams */
579  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
580  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
581  uint64_t limit_filesize; /* filesize limit expressed in bytes */
582 
583  int shortest;
584 
586 } OutputFile;
587 
588 extern InputStream **input_streams;
589 extern int nb_input_streams;
590 extern InputFile **input_files;
591 extern int nb_input_files;
592 
594 extern int nb_output_streams;
595 extern OutputFile **output_files;
596 extern int nb_output_files;
597 
598 extern FilterGraph **filtergraphs;
599 extern int nb_filtergraphs;
600 
601 extern char *vstats_filename;
602 extern char *sdp_filename;
603 
604 extern float audio_drift_threshold;
605 extern float dts_delta_threshold;
606 extern float dts_error_threshold;
607 
608 extern int audio_volume;
609 extern int audio_sync_method;
610 extern int video_sync_method;
611 extern float frame_drop_threshold;
612 extern int do_benchmark;
613 extern int do_benchmark_all;
614 extern int do_deinterlace;
615 extern int do_hex_dump;
616 extern int do_pkt_dump;
617 extern int copy_ts;
618 extern int start_at_zero;
619 extern int copy_tb;
620 extern int debug_ts;
621 extern int exit_on_error;
622 extern int abort_on_flags;
623 extern int print_stats;
624 extern int64_t stats_period;
625 extern int qp_hist;
626 extern int stdin_interaction;
627 extern int frame_bits_per_raw_sample;
628 extern AVIOContext *progress_avio;
629 extern float max_error_rate;
630 extern char *videotoolbox_pixfmt;
631 
632 extern int filter_nbthreads;
633 extern int filter_complex_nbthreads;
634 extern int vstats_version;
635 extern int auto_conversion_filters;
636 
637 extern const AVIOInterruptCB int_cb;
638 
639 extern const OptionDef options[];
640 extern const HWAccel hwaccels[];
641 #if CONFIG_QSV
642 extern char *qsv_device;
643 #endif
644 extern HWDevice *filter_hw_device;
645 
646 
647 void term_init(void);
648 void term_exit(void);
649 
650 void show_usage(void);
651 
654 
656 
658 void check_filter_outputs(void);
662 
663 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub);
664 
666 
667 int ffmpeg_parse_options(int argc, char **argv);
668 
671 
672 HWDevice *hw_device_get_by_name(const char *name);
673 int hw_device_init_from_string(const char *arg, HWDevice **dev);
674 void hw_device_free_all(void);
675 
679 
681 
682 #endif /* FFTOOLS_FFMPEG_H */
AVSubtitle
Definition: avcodec.h:2389
OptionsContext::nb_hwaccels
int nb_hwaccels
Definition: ffmpeg.h:130
OptionsContext::nb_codec_names
int nb_codec_names
Definition: ffmpeg.h:104
InputFilter::sample_aspect_ratio
AVRational sample_aspect_ratio
Definition: ffmpeg.h:253
AVCodec
AVCodec.
Definition: codec.h:197
OptionsContext::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:119
OutputStream::data_size
uint64_t data_size
Definition: ffmpeg.h:544
InputFile::start_time
int64_t start_time
Definition: ffmpeg.h:413
audio_sync_method
int audio_sync_method
Definition: ffmpeg_opt.c:155
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:152
StreamMap::file_index
int file_index
Definition: ffmpeg.h:82
OutputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:267
FKF_PREV_FORCED_T
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:437
OptionsContext::canvas_sizes
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:212
InputStream::hwaccel_device
char * hwaccel_device
Definition: ffmpeg.h:373
OptionsContext::dump_attachment
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:127
OutputStream::attachment_filename
const char * attachment_filename
Definition: ffmpeg.h:535
configure_filtergraph
int configure_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:955
InputFile::seek_timestamp
int seek_timestamp
Definition: ffmpeg.h:414
OptionsContext::nb_audio_sample_rate
int nb_audio_sample_rate
Definition: ffmpeg.h:108
OutputStream::frame_number
int frame_number
Definition: ffmpeg.h:458
nb_filtergraphs
int nb_filtergraphs
Definition: ffmpeg.c:159
OptionsContext::nb_max_frame_rates
int nb_max_frame_rates
Definition: ffmpeg.h:112
OptionsContext::intra_matrices
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:188
video_sync_method
int video_sync_method
Definition: ffmpeg_opt.c:156
InputFilter::width
int width
Definition: ffmpeg.h:252
OptionsContext::nb_time_bases
int nb_time_bases
Definition: ffmpeg.h:233
OutputStream::last_dropped
int last_dropped
Definition: ffmpeg.h:481
FKF_PREV_FORCED_N
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:436
InputFile::pkt
AVPacket * pkt
Definition: ffmpeg.h:422
FilterGraph::graph_desc
const char * graph_desc
Definition: ffmpeg.h:289
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:387
OutputStream::enc_ctx
AVCodecContext * enc_ctx
Definition: ffmpeg.h:474
OptionsContext::nb_rc_overrides
int nb_rc_overrides
Definition: ffmpeg.h:187
sub
static float sub(float src0, float src1)
Definition: dnn_backend_native_layer_mathbinary.c:32
thread.h
FilterGraph::inputs
InputFilter ** inputs
Definition: ffmpeg.h:294
InputFile::nb_streams_warn
int nb_streams_warn
Definition: ffmpeg.h:418
OptionsContext::hwaccels
SpecifierOpt * hwaccels
Definition: ffmpeg.h:129
OptionsContext::apad
SpecifierOpt * apad
Definition: ffmpeg.h:224
frame_drop_threshold
float frame_drop_threshold
Definition: ffmpeg_opt.c:157
rational.h
InputStream::dec_ctx
AVCodecContext * dec_ctx
Definition: ffmpeg.h:309
OptionsContext::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:153
InputStream::user_set_discard
int user_set_discard
Definition: ffmpeg.h:304
StreamMap::sync_stream_index
int sync_stream_index
Definition: ffmpeg.h:85
OptionsContext::rc_overrides
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:186
OutputStream::packets_written
uint64_t packets_written
Definition: ffmpeg.h:546
OptionsContext::nb_metadata
int nb_metadata
Definition: ffmpeg.h:169
nb_input_streams
int nb_input_streams
Definition: ffmpeg.c:149
OptionsContext::nb_hwaccel_devices
int nb_hwaccel_devices
Definition: ffmpeg.h:132
OutputStream::keep_pix_fmt
int keep_pix_fmt
Definition: ffmpeg.h:540
OptionsContext::nb_attachments
int nb_attachments
Definition: ffmpeg.h:147
OutputFile::start_time
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:580
OptionsContext::frame_aspect_ratios
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:184
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:303
InputFile::rate_emu
int rate_emu
Definition: ffmpeg.h:419
OutputStream::unavailable
int unavailable
Definition: ffmpeg.h:525
OptionsContext::mux_max_delay
float mux_max_delay
Definition: ffmpeg.h:155
OptionsContext::nb_chroma_intra_matrices
int nb_chroma_intra_matrices
Definition: ffmpeg.h:193
OptionsContext::nb_pass
int nb_pass
Definition: ffmpeg.h:215
OutputStream::rotate_overridden
int rotate_overridden
Definition: ffmpeg.h:492
FKF_T
@ FKF_T
Definition: ffmpeg.h:438
OutputStream::hwaccel_ctx
void * hwaccel_ctx
Definition: ffmpeg.h:484
OptionsContext::subtitle_disable
int subtitle_disable
Definition: ffmpeg.h:161
OptionsContext::nb_apad
int nb_apad
Definition: ffmpeg.h:225
OptionsContext::qscale
SpecifierOpt * qscale
Definition: ffmpeg.h:178
OutputStream::index
int index
Definition: ffmpeg.h:454
b
#define b
Definition: input.c:41
FilterGraph::index
int index
Definition: ffmpeg.h:288
OptionsContext::inter_matrices
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:190
AudioChannelMap::stream_idx
int stream_idx
Definition: ffmpeg.h:90
InputStream::nb_filters
int nb_filters
Definition: ffmpeg.h:366
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:513
OutputStream::sws_dict
AVDictionary * sws_dict
Definition: ffmpeg.h:520
nb_output_files
int nb_output_files
Definition: ffmpeg.c:156
show_usage
void show_usage(void)
Definition: ffmpeg_opt.c:3290
FilterGraph::nb_inputs
int nb_inputs
Definition: ffmpeg.h:295
OptionsContext::bitexact
int bitexact
Definition: ffmpeg.h:157
OptionsContext::audio_channels
SpecifierOpt * audio_channels
Definition: ffmpeg.h:105
OptionsContext::nb_frame_rates
int nb_frame_rates
Definition: ffmpeg.h:110
AVDictionary
Definition: dict.c:30
HWDevice
Definition: ffmpeg.h:73
OutputFilter::sample_rates
int * sample_rates
Definition: ffmpeg.h:284
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::hwaccel_get_buffer
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:379
InputStream::decoding_needed
int decoding_needed
Definition: ffmpeg.h:305
OptionsContext::format
const char * format
Definition: ffmpeg.h:101
videotoolbox_pixfmt
char * videotoolbox_pixfmt
Definition: ffmpeg_videotoolbox.c:34
OutputStream::max_frames
int64_t max_frames
Definition: ffmpeg.h:477
OutputStream::rotate_override_value
double rotate_override_value
Definition: ffmpeg.h:494
OptionsContext::nb_disposition
int nb_disposition
Definition: ffmpeg.h:229
qp_hist
int qp_hist
Definition: ffmpeg_opt.c:170
AVBSFContext
The bitstream filter state.
Definition: bsf.h:49
AVIOInterruptCB
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
OptionDef
Definition: cmdutils.h:158
InputFilter::channel_layout
uint64_t channel_layout
Definition: ffmpeg.h:257
OutputStream::forced_keyframes_pexpr
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:504
InputFilter::ist
struct InputStream * ist
Definition: ffmpeg.h:242
init_simple_filtergraph
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
OptionsContext::nb_guess_layout_max
int nb_guess_layout_max
Definition: ffmpeg.h:223
AVFifoBuffer
Definition: fifo.h:31
InputFile::eof_reached
int eof_reached
Definition: ffmpeg.h:402
OutputStream::encoding_needed
int encoding_needed
Definition: ffmpeg.h:457
InputStream
Definition: ffmpeg.h:300
OptionsContext::chapters_input_file
int chapters_input_file
Definition: ffmpeg.h:149
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:166
OutputStream::forced_kf_pts
int64_t * forced_kf_pts
Definition: ffmpeg.h:500
OptionsContext::nb_presets
int nb_presets
Definition: ffmpeg.h:199
stats_period
int64_t stats_period
Definition: ffmpeg_opt.c:178
OptionsContext::rate_emu
int rate_emu
Definition: ffmpeg.h:121
do_deinterlace
int do_deinterlace
Definition: ffmpeg_opt.c:158
dts_delta_threshold
float dts_delta_threshold
Definition: ffmpeg_opt.c:151
fifo.h
OutputStream::filters
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:516
vstats_version
int vstats_version
Definition: ffmpeg_opt.c:176
hwaccels
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:136
OutputStream::initialized
int initialized
Definition: ffmpeg.h:531
OptionsContext::nb_dump_attachment
int nb_dump_attachment
Definition: ffmpeg.h:128
OptionsContext::g
OptionGroup * g
Definition: ffmpeg.h:95
OutputStream::disposition
char * disposition
Definition: ffmpeg.h:538
InputStream::sub2video
struct InputStream::sub2video sub2video
InputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:245
StreamMap::disabled
int disabled
Definition: ffmpeg.h:81
AudioChannelMap::ostream_idx
int ostream_idx
Definition: ffmpeg.h:91
OutputStream::logfile_prefix
char * logfile_prefix
Definition: ffmpeg.h:511
OptionsContext::nb_top_field_first
int nb_top_field_first
Definition: ffmpeg.h:195
InputStream::decoder_opts
AVDictionary * decoder_opts
Definition: ffmpeg.h:338
OptionsContext::nb_autorotate
int nb_autorotate
Definition: ffmpeg.h:136
OutputStream::forced_keyframes_expr_const_values
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:505
InputStream::filter_in_rescale_delta_last
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:325
OptionsContext::nb_reinit_filters
int nb_reinit_filters
Definition: ffmpeg.h:209
InputStream::nb_packets
uint64_t nb_packets
Definition: ffmpeg.h:389
OutputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:278
HWACCEL_QSV
@ HWACCEL_QSV
Definition: ffmpeg.h:63
hw_device_setup_for_decode
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:303
InputFilter::frame_queue
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:247
OptionsContext
Definition: ffmpeg.h:94
ist
fg inputs[0] ist
Definition: ffmpeg_filter.c:182
assert_avoptions
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:685
OptionsContext::time_bases
SpecifierOpt * time_bases
Definition: ffmpeg.h:232
qsv_init
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:72
OutputFile::opts
AVDictionary * opts
Definition: ffmpeg.h:577
InputStream::sub2video::last_pts
int64_t last_pts
Definition: ffmpeg.h:353
do_pkt_dump
int do_pkt_dump
Definition: ffmpeg_opt.c:162
OptionsContext::nb_audio_channel_maps
int nb_audio_channel_maps
Definition: ffmpeg.h:142
HWACCEL_VIDEOTOOLBOX
@ HWACCEL_VIDEOTOOLBOX
Definition: ffmpeg.h:62
InputFile
Definition: ffmpeg.h:400
OptionsContext::recording_time
int64_t recording_time
Definition: ffmpeg.h:151
input_files
InputFile ** input_files
Definition: ffmpeg.c:150
OptionsContext::metadata_chapters_manual
int metadata_chapters_manual
Definition: ffmpeg.h:145
OptionsContext::pass
SpecifierOpt * pass
Definition: ffmpeg.h:214
OutputStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg.h:536
OptionsContext::nb_stream_maps
int nb_stream_maps
Definition: ffmpeg.h:140
OptionsContext::audio_disable
int audio_disable
Definition: ffmpeg.h:160
InputStream::hwaccel_pix_fmt
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:381
OutputFile::shortest
int shortest
Definition: ffmpeg.h:583
OutputStream::last_nb0_frames
int last_nb0_frames[3]
Definition: ffmpeg.h:482
InputStream::dts
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:319
AudioChannelMap
Definition: ffmpeg.h:89
OptionsContext::presets
SpecifierOpt * presets
Definition: ffmpeg.h:198
OptionsContext::copy_initial_nonkeyframes
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:200
OutputStream::sync_opts
int64_t sync_opts
Definition: ffmpeg.h:462
OptionsContext::codec_names
SpecifierOpt * codec_names
Definition: ffmpeg.h:103
term_init
void term_init(void)
Definition: ffmpeg.c:408
OptionsContext::nb_program
int nb_program
Definition: ffmpeg.h:231
StreamMap::linklabel
char * linklabel
Definition: ffmpeg.h:86
OutputFilter::width
int width
Definition: ffmpeg.h:275
HWACCEL_GENERIC
@ HWACCEL_GENERIC
Definition: ffmpeg.h:61
OutputStream::forced_keyframes
char * forced_keyframes
Definition: ffmpeg.h:503
InputStream::cfr_next_pts
int64_t cfr_next_pts
Definition: ffmpeg.h:332
s
#define s(width, name)
Definition: cbs_vp9.c:257
FilterGraph::outputs
OutputFilter ** outputs
Definition: ffmpeg.h:296
vstats_filename
char * vstats_filename
Definition: ffmpeg_opt.c:147
OutputStream::frame_aspect_ratio
AVRational frame_aspect_ratio
Definition: ffmpeg.h:496
InputStream::framerate
AVRational framerate
Definition: ffmpeg.h:339
OutputStream::mux_timebase
AVRational mux_timebase
Definition: ffmpeg.h:469
ENCODER_FINISHED
@ ENCODER_FINISHED
Definition: ffmpeg.h:448
OutputStream::audio_channels_mapped
int audio_channels_mapped
Definition: ffmpeg.h:509
InputFilter
Definition: ffmpeg.h:240
OutputStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg.h:537
AVHWDeviceType
AVHWDeviceType
Definition: hwcontext.h:27
OutputFilter::ost
struct OutputStream * ost
Definition: ffmpeg.h:266
output_streams
OutputStream ** output_streams
Definition: ffmpeg.c:153
OptionsContext::metadata_streams_manual
int metadata_streams_manual
Definition: ffmpeg.h:144
forced_keyframes_const
forced_keyframes_const
Definition: ffmpeg.h:433
MUXER_FINISHED
@ MUXER_FINISHED
Definition: ffmpeg.h:449
OutputStream::avfilter
char * avfilter
Definition: ffmpeg.h:515
InputStream::sub2video::sub_queue
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:355
audio_drift_threshold
float audio_drift_threshold
Definition: ffmpeg_opt.c:150
InputStream::filters
InputFilter ** filters
Definition: ffmpeg.h:365
OptionsContext::nb_copy_initial_nonkeyframes
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:201
max_error_rate
float max_error_rate
Definition: ffmpeg_opt.c:173
AVExpr
Definition: eval.c:157
OutputFile::header_written
int header_written
Definition: ffmpeg.h:585
OptionsContext::sample_fmts
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:176
OptionsContext::shortest
int shortest
Definition: ffmpeg.h:156
InputStream::hwaccel_retrieve_data
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:380
InputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:243
AVThreadMessageQueue
Definition: threadmessage.c:25
OptionsContext::accurate_seek
int accurate_seek
Definition: ffmpeg.h:122
OutputStream::last_frame
AVFrame * last_frame
Definition: ffmpeg.h:479
OptionsContext::nb_canvas_sizes
int nb_canvas_sizes
Definition: ffmpeg.h:213
OptionsContext::nb_max_muxing_queue_size
int nb_max_muxing_queue_size
Definition: ffmpeg.h:219
arg
const char * arg
Definition: jacosubdec.c:67
OutputStream::encoder_opts
AVDictionary * encoder_opts
Definition: ffmpeg.h:519
OptionsContext::start_time
int64_t start_time
Definition: ffmpeg.h:98
InputStream::pts
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:322
AVFormatContext
Format I/O context.
Definition: avformat.h:1106
OutputFilter::height
int height
Definition: ffmpeg.h:275
OptionsContext::nb_filter_scripts
int nb_filter_scripts
Definition: ffmpeg.h:207
OptionsContext::reinit_filters
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:208
OutputFilter::name
uint8_t * name
Definition: ffmpeg.h:268
InputStream::sub2video::w
int w
Definition: ffmpeg.h:357
HWAccel::id
enum HWAccelID id
Definition: ffmpeg.h:69
InputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:340
InputStream::st
AVStream * st
Definition: ffmpeg.h:302
forced_keyframes_const_names
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
OptionsContext::filters
SpecifierOpt * filters
Definition: ffmpeg.h:204
OptionsContext::frame_sizes
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:113
HWAccel
Definition: ffmpeg.h:66
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
OptionsContext::fix_sub_duration
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:210
OptionsContext::codec_tags
SpecifierOpt * codec_tags
Definition: ffmpeg.h:174
InputStream::next_pts
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:321
frame_bits_per_raw_sample
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:172
OptionsContext::force_fps
SpecifierOpt * force_fps
Definition: ffmpeg.h:182
OptionsContext::metadata_global_manual
int metadata_global_manual
Definition: ffmpeg.h:143
OptionsContext::nb_intra_matrices
int nb_intra_matrices
Definition: ffmpeg.h:189
OutputStream::audio_channels_map
int * audio_channels_map
Definition: ffmpeg.h:508
InputStream::hwaccel_id
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:371
InputFilter::channels
int channels
Definition: ffmpeg.h:256
OutputStream::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:487
OutputStream::resample_opts
AVDictionary * resample_opts
Definition: ffmpeg.h:522
InputFilter::eof
int eof
Definition: ffmpeg.h:261
InputStream::fix_sub_duration
int fix_sub_duration
Definition: ffmpeg.h:345
OutputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:491
InputStream::hwaccel_output_format
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:374
OutputFilter::channel_layout
uint64_t channel_layout
Definition: ffmpeg.h:279
HWAccel::pix_fmt
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:70
OptionsContext::max_frames
SpecifierOpt * max_frames
Definition: ffmpeg.h:170
AVFilterGraph
Definition: avfilter.h:798
do_benchmark_all
int do_benchmark_all
Definition: ffmpeg_opt.c:160
filtergraphs
FilterGraph ** filtergraphs
Definition: ffmpeg.c:158
InputStream::min_pts
int64_t min_pts
Definition: ffmpeg.h:327
OptionGroup
Definition: cmdutils.h:308
OptionsContext::program
SpecifierOpt * program
Definition: ffmpeg.h:230
HWAccel::name
const char * name
Definition: ffmpeg.h:67
FilterGraph::nb_outputs
int nb_outputs
Definition: ffmpeg.h:297
OutputStream::logfile
FILE * logfile
Definition: ffmpeg.h:512
swresample.h
InputStream::sub2video::initialize
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:358
guess_input_channel_layout
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2124
OptionsContext::nb_metadata_map
int nb_metadata_map
Definition: ffmpeg.h:197
OptionsContext::nb_filters
int nb_filters
Definition: ffmpeg.h:205
InputStream::frames_decoded
uint64_t frames_decoded
Definition: ffmpeg.h:391
OutputFilter::formats
int * formats
Definition: ffmpeg.h:282
OutputStream::enc
const AVCodec * enc
Definition: ffmpeg.h:476
InputStream::next_dts
int64_t next_dts
Definition: ffmpeg.h:318
FilterGraph
Definition: ffmpeg.h:287
print_stats
int print_stats
Definition: ffmpeg_opt.c:169
InputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:241
options
const OptionDef options[]
eval.h
OutputStream::force_fps
int force_fps
Definition: ffmpeg.h:490
OptionsContext::nb_frame_aspect_ratios
int nb_frame_aspect_ratios
Definition: ffmpeg.h:185
OutputStream::filter
OutputFilter * filter
Definition: ffmpeg.h:514
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:372
OptionsContext::thread_queue_size
int thread_queue_size
Definition: ffmpeg.h:123
AVMediaType
AVMediaType
Definition: avutil.h:199
InputStream::decoded_frame
AVFrame * decoded_frame
Definition: ffmpeg.h:311
InputStream::wrap_correction_done
int wrap_correction_done
Definition: ffmpeg.h:323
InputStream::start
int64_t start
Definition: ffmpeg.h:315
InputStream::filter_frame
AVFrame * filter_frame
Definition: ffmpeg.h:312
threadmessage.h
OutputStream::error
int64_t error[4]
Definition: ffmpeg.h:572
InputStream::file_index
int file_index
Definition: ffmpeg.h:301
OutputStream::forced_kf_count
int forced_kf_count
Definition: ffmpeg.h:501
InputFile::last_ts
int64_t last_ts
Definition: ffmpeg.h:412
FilterGraph::graph
AVFilterGraph * graph
Definition: ffmpeg.h:291
InputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:313
InputStream::got_output
int got_output
Definition: ffmpeg.h:347
StreamMap
Definition: ffmpeg.h:80
copy_ts
int copy_ts
Definition: ffmpeg_opt.c:163
OptionsContext::filter_scripts
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:206
avio.h
copy_tb
int copy_tb
Definition: ffmpeg_opt.c:165
InputStream::prev_sub
struct InputStream::@2 prev_sub
OptionsContext::seek_timestamp
int seek_timestamp
Definition: ffmpeg.h:100
InputStream::hwaccel_retrieved_pix_fmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:382
hwaccel_decode_init
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:516
OptionsContext::top_field_first
SpecifierOpt * top_field_first
Definition: ffmpeg.h:194
HWDevice::device_ref
AVBufferRef * device_ref
Definition: ffmpeg.h:76
OutputStream::source_index
int source_index
Definition: ffmpeg.h:455
OptionsContext::nb_discard
int nb_discard
Definition: ffmpeg.h:227
OSTFinished
OSTFinished
Definition: ffmpeg.h:447
OutputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:265
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:392
OutputFile::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:581
check_filter_outputs
void check_filter_outputs(void)
Definition: ffmpeg_filter.c:635
OptionsContext::metadata
SpecifierOpt * metadata
Definition: ffmpeg.h:168
InputStream::max_pts
int64_t max_pts
Definition: ffmpeg.h:328
do_benchmark
int do_benchmark
Definition: ffmpeg_opt.c:159
OptionsContext::nb_autoscale
int nb_autoscale
Definition: ffmpeg.h:237
pthread_t
Definition: os2threads.h:44
OutputStream::pict_type
int pict_type
Definition: ffmpeg.h:569
OptionsContext::frame_rates
SpecifierOpt * frame_rates
Definition: ffmpeg.h:109
OutputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:272
InputFile::time_base
AVRational time_base
Definition: ffmpeg.h:408
InputFile::duration
int64_t duration
Definition: ffmpeg.h:406
StreamMap::sync_file_index
int sync_file_index
Definition: ffmpeg.h:84
OutputStream::first_pts
int64_t first_pts
Definition: ffmpeg.h:465
HWACCEL_AUTO
@ HWACCEL_AUTO
Definition: ffmpeg.h:60
OptionsContext::autorotate
SpecifierOpt * autorotate
Definition: ffmpeg.h:135
OutputStream::max_frame_rate
AVRational max_frame_rate
Definition: ffmpeg.h:488
InputStream::guess_layout_max
int guess_layout_max
Definition: ffmpeg.h:341
OutputStream::filters_script
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:517
OutputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:480
OutputStream::apad
char * apad
Definition: ffmpeg.h:523
OptionsContext::nb_hwaccel_output_formats
int nb_hwaccel_output_formats
Definition: ffmpeg.h:134
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:180
OptionsContext::metadata_map
SpecifierOpt * metadata_map
Definition: ffmpeg.h:196
InputStream::ret
int ret
Definition: ffmpeg.h:348
StreamMap::stream_index
int stream_index
Definition: ffmpeg.h:83
OptionsContext::nb_qscale
int nb_qscale
Definition: ffmpeg.h:179
OptionsContext::stream_maps
StreamMap * stream_maps
Definition: ffmpeg.h:139
OptionsContext::nb_ts_scale
int nb_ts_scale
Definition: ffmpeg.h:126
OptionsContext::audio_sample_rate
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:107
OptionsContext::start_time_eof
int64_t start_time_eof
Definition: ffmpeg.h:99
OptionsContext::nb_fix_sub_duration
int nb_fix_sub_duration
Definition: ffmpeg.h:211
OutputStream::sync_ist
struct InputStream * sync_ist
Definition: ffmpeg.h:461
exit_on_error
int exit_on_error
Definition: ffmpeg_opt.c:167
output_files
OutputFile ** output_files
Definition: ffmpeg.c:155
OutputFile::ost_index
int ost_index
Definition: ffmpeg.h:578
OptionsContext::nb_frame_pix_fmts
int nb_frame_pix_fmts
Definition: ffmpeg.h:116
InputStream::hwaccel_uninit
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:378
hw_device_setup_for_filter
int hw_device_setup_for_filter(FilterGraph *fg)
Definition: ffmpeg_hw.c:525
InputFile::ctx
AVFormatContext * ctx
Definition: ffmpeg.h:401
InputFile::accurate_seek
int accurate_seek
Definition: ffmpeg.h:420
videotoolbox_init
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg_videotoolbox.c:121
OptionsContext::nb_copy_prior_start
int nb_copy_prior_start
Definition: ffmpeg.h:203
OutputStream::muxing_queue
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:557
OutputFilter::channel_layouts
uint64_t * channel_layouts
Definition: ffmpeg.h:283
OutputStream::ref_par
AVCodecParameters * ref_par
Definition: ffmpeg.h:475
OptionsContext::bitstream_filters
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:172
OptionsContext::streamid_map
int * streamid_map
Definition: ffmpeg.h:165
InputFile::recording_time
int64_t recording_time
Definition: ffmpeg.h:415
avcodec.h
OptionsContext::passlogfiles
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:216
InputFile::loop
int loop
Definition: ffmpeg.h:405
SpecifierOpt
Definition: cmdutils.h:146
OptionsContext::autoscale
SpecifierOpt * autoscale
Definition: ffmpeg.h:236
AVStream
Stream structure.
Definition: avformat.h:832
OptionsContext::nb_bitstream_filters
int nb_bitstream_filters
Definition: ffmpeg.h:173
pixfmt.h
OutputStream::max_muxing_queue_size
int max_muxing_queue_size
Definition: ffmpeg.h:554
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:168
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:244
OptionsContext::nb_streamid_map
int nb_streamid_map
Definition: ffmpeg.h:166
sdp_filename
char * sdp_filename
Definition: ffmpeg_opt.c:148
OptionsContext::audio_channel_maps
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:141
OutputStream::forced_kf_ref_pts
int64_t forced_kf_ref_pts
Definition: ffmpeg.h:499
InputStream::reinit_filters
int reinit_filters
Definition: ffmpeg.h:368
hw_device_free_all
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:274
avformat.h
InputFile::eagain
int eagain
Definition: ffmpeg.h:403
HWAccelID
HWAccelID
Definition: ffmpeg.h:58
dict.h
InputFile::ist_index
int ist_index
Definition: ffmpeg.h:404
OptionsContext::nb_sample_fmts
int nb_sample_fmts
Definition: ffmpeg.h:177
ost
OutputStream * ost
Definition: ffmpeg_filter.c:163
InputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:255
OptionsContext::nb_enc_time_bases
int nb_enc_time_bases
Definition: ffmpeg.h:235
HWAccel::init
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:68
OptionsContext::nb_max_frames
int nb_max_frames
Definition: ffmpeg.h:171
OptionsContext::disposition
SpecifierOpt * disposition
Definition: ffmpeg.h:228
ifilter_parameters_from_frame
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
Definition: ffmpeg_filter.c:1129
OutputFilter::format
int format
Definition: ffmpeg.h:277
filter_hw_device
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:145
AVCodecContext
main external API structure.
Definition: avcodec.h:501
hw_device_setup_for_encode
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:419
OptionsContext::mux_preload
float mux_preload
Definition: ffmpeg.h:154
HWDevice::name
const char * name
Definition: ffmpeg.h:74
InputFilter::format
int format
Definition: ffmpeg.h:250
OutputStream::finished
OSTFinished finished
Definition: ffmpeg.h:524
OptionsContext::nb_audio_channels
int nb_audio_channels
Definition: ffmpeg.h:106
OptionsContext::guess_layout_max
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:222
filter_nbthreads
int filter_nbthreads
Definition: ffmpeg_opt.c:174
OptionsContext::enc_time_bases
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:234
avfilter.h
OutputStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg.h:467
OptionsContext::video_disable
int video_disable
Definition: ffmpeg.h:159
OutputStream::quality
int quality
Definition: ffmpeg.h:552
OptionsContext::nb_forced_key_frames
int nb_forced_key_frames
Definition: ffmpeg.h:181
OptionsContext::max_frame_rates
SpecifierOpt * max_frame_rates
Definition: ffmpeg.h:111
InputStream::nb_samples
int64_t nb_samples
Definition: ffmpeg.h:334
InputFilter::height
int height
Definition: ffmpeg.h:252
OptionsContext::frame_pix_fmts
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:115
OutputStream::frames_encoded
uint64_t frames_encoded
Definition: ffmpeg.h:548
HWACCEL_NONE
@ HWACCEL_NONE
Definition: ffmpeg.h:59
InputFile::ts_offset
int64_t ts_offset
Definition: ffmpeg.h:411
OptionsContext::nb_frame_sizes
int nb_frame_sizes
Definition: ffmpeg.h:114
OptionsContext::hwaccel_devices
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:131
InputStream::discard
int discard
Definition: ffmpeg.h:303
OptionsContext::max_muxing_queue_size
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:218
AVFilterContext
An instance of a filter.
Definition: avfilter.h:333
remove_avoptions
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:676
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Definition: ffmpeg.h:356
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Definition: ffmpeg.h:220
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Definition: buffer.h:84
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Definition: ffmpeg.h:576
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Definition: ffmpeg.h:357
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Definition: ffmpeg.h:435
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Definition: ffmpeg.h:146
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Definition: ffmpeg.h:336
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Definition: ffmpeg.h:125
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Definition: packet.h:342
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Definition: ffmpeg.h:192
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Definition: ffmpeg.h:434
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Definition: ffmpeg.h:579
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Definition: ffmpeg_hw.c:44
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Definition: ffmpeg.h:175
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Definition: avfilter.h:958
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Definition: ffmpeg.h:310
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Definition: ffmpeg.h:472
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