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 {
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;
122  float readrate;
125 
138 
139  /* output options */
142  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
143  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
147  const char **attachments;
149 
151 
152  int64_t recording_time;
153  int64_t stop_time;
154  uint64_t limit_filesize;
155  float mux_preload;
157  int shortest;
158  int bitexact;
159 
164 
165  /* indexed by output file stream index */
168 
216  int nb_pass;
226  int nb_apad;
240 
241 typedef struct InputFilter {
243  struct InputStream *ist;
245  uint8_t *name;
246  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
247 
249 
250  // parameters configured for this input
251  int format;
252 
253  int width, height;
255 
257  int channels;
258  uint64_t channel_layout;
259 
262 
263  int eof;
264 } InputFilter;
265 
266 typedef struct OutputFilter {
268  struct OutputStream *ost;
270  uint8_t *name;
271 
272  /* temporary storage until stream maps are processed */
275 
276  /* desired output stream properties */
277  int width, height;
279  int format;
281  uint64_t channel_layout;
282 
283  // those are only set if no format is specified and the encoder gives us multiple options
284  int *formats;
285  uint64_t *channel_layouts;
287 } OutputFilter;
288 
289 typedef struct FilterGraph {
290  int index;
291  const char *graph_desc;
292 
295 
300 } FilterGraph;
301 
302 typedef struct InputStream {
305  int discard; /* true if stream data should be discarded */
307  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
308 #define DECODING_FOR_OST 1
309 #define DECODING_FOR_FILTER 2
310 
312  const AVCodec *dec;
314  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
316 
317  int64_t start; /* time when read started */
318  /* predicted dts of the next packet read for this stream or (when there are
319  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
320  int64_t next_dts;
321  int64_t first_dts; ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
322  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
323 
324  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
325  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
327 
329 
330  int64_t min_pts; /* pts with the smallest value in a current stream */
331  int64_t max_pts; /* pts with the higher value in a current stream */
332 
333  // when forcing constant input framerate through -r,
334  // this contains the pts that will be given to the next decoded frame
335  int64_t cfr_next_pts;
336 
337  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
338 
339  double ts_scale;
342  AVRational framerate; /* framerate forced with -r */
345 
347 
349  struct { /* previous decoded subtitle and related variables */
351  int ret;
353  } prev_sub;
354 
355  struct sub2video {
356  int64_t last_pts;
357  int64_t end_pts;
358  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
360  int w, h;
361  unsigned int initialize; ///< marks if sub2video_update should force an initialization
362  } sub2video;
363 
364  /* decoded data from this stream goes into all those filters
365  * currently video and audio only */
368 
370 
371  /* hwaccel options */
376 
377  /* hwaccel context */
378  void *hwaccel_ctx;
385 
386  /* stats */
387  // combined size of all the packets read
388  uint64_t data_size;
389  /* number of packets successfully read for this stream */
390  uint64_t nb_packets;
391  // number of frames/samples retrieved from the decoder
392  uint64_t frames_decoded;
393  uint64_t samples_decoded;
394 
395  int64_t *dts_buffer;
397 
398  int got_output;
399 } InputStream;
400 
401 typedef struct InputFile {
403  int eof_reached; /* true if eof reached */
404  int eagain; /* true if last read attempt returned EAGAIN */
405  int ist_index; /* index of first stream in input_streams */
406  int loop; /* set number of times input stream should be looped */
407  int64_t duration; /* actual duration of the longest stream in a file
408  at the moment when looping happens */
409  AVRational time_base; /* time base of the duration */
411 
412  int64_t ts_offset;
413  int64_t last_ts;
414  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;
420  float readrate;
422 
424 
425 #if HAVE_THREADS
426  AVThreadMessageQueue *in_thread_queue;
427  pthread_t thread; /* thread reading from this file */
428  int non_blocking; /* reading packets from the thread should not block */
429  int joined; /* the thread has been joined */
430  int thread_queue_size; /* maximum number of queued packets */
431 #endif
432 } InputFile;
433 
441 };
442 
443 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
444 #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)
445 
446 extern const char *const forced_keyframes_const_names[];
447 
448 typedef enum {
451 } OSTFinished ;
452 
453 typedef struct OutputStream {
454  int file_index; /* file index */
455  int index; /* stream index in the output file */
456  int source_index; /* InputStream index */
457  AVStream *st; /* stream in the output file */
458  int encoding_needed; /* true if encoding needed for this stream */
460  /* input pts and corresponding output pts
461  for A/V sync */
462  struct InputStream *sync_ist; /* input stream to sync against */
463  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
464  /* pts of the first frame encoded for this stream, used for limiting
465  * recording time */
466  int64_t first_pts;
467  /* dts of the last packet sent to the muxer */
468  int64_t last_mux_dts;
469  // the timebase of the packets sent to the muxer
472 
474 
476  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
477  const AVCodec *enc;
478  int64_t max_frames;
484 
485  void *hwaccel_ctx;
486 
487  /* video only */
490  int is_cfr;
496 
498 
499  /* forced key frames */
501  int64_t *forced_kf_pts;
508 
509  /* audio only */
510  int *audio_channels_map; /* list of the channels id to pick from the source stream */
511  int audio_channels_mapped; /* number of channels in audio_channels_map */
512 
514  FILE *logfile;
515 
517  char *avfilter;
518  char *filters; ///< filtergraph associated to the -filter option
519  char *filters_script; ///< filtergraph script associated to the -filter_script option
520 
524  char *apad;
525  OSTFinished finished; /* no more packets should be written for this stream */
526  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
528 
529  // init_output_stream() has been called for this stream
530  // The encoder and the bitstream filters have been initialized and the stream
531  // parameters are set in the AVStream.
533 
535 
536  const char *attachment_filename;
539  char *disposition;
540 
542 
543  /* stats */
544  // combined size of all the packets written
545  uint64_t data_size;
546  // number of packets send to the muxer
547  uint64_t packets_written;
548  // number of frames/samples sent to the encoder
549  uint64_t frames_encoded;
550  uint64_t samples_encoded;
551 
552  /* packet quality factor */
553  int quality;
554 
556 
557  /* the packets are buffered here until the muxer is ready to be initialized */
559 
560  /*
561  * The size of the AVPackets' buffers in queue.
562  * Updated when a packet is either pushed or pulled from the queue.
563  */
565 
566  /* Threshold after which max_muxing_queue_size will be in effect */
568 
569  /* packet picture type */
571 
572  /* frame encode sum of squared error values */
573  int64_t error[4];
574 } OutputStream;
575 
576 typedef struct OutputFile {
579  int ost_index; /* index of the first stream in output_streams */
580  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
581  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
582  uint64_t limit_filesize; /* filesize limit expressed in bytes */
583 
584  int shortest;
585 
587 } OutputFile;
588 
589 extern InputStream **input_streams;
590 extern int nb_input_streams;
591 extern InputFile **input_files;
592 extern int nb_input_files;
593 
595 extern int nb_output_streams;
596 extern OutputFile **output_files;
597 extern int nb_output_files;
598 
599 extern FilterGraph **filtergraphs;
600 extern int nb_filtergraphs;
601 
602 extern char *vstats_filename;
603 extern char *sdp_filename;
604 
605 extern float audio_drift_threshold;
606 extern float dts_delta_threshold;
607 extern float dts_error_threshold;
608 
609 extern int audio_volume;
610 extern int audio_sync_method;
611 extern int video_sync_method;
612 extern float frame_drop_threshold;
613 extern int do_benchmark;
614 extern int do_benchmark_all;
615 extern int do_deinterlace;
616 extern int do_hex_dump;
617 extern int do_pkt_dump;
618 extern int copy_ts;
619 extern int start_at_zero;
620 extern int copy_tb;
621 extern int debug_ts;
622 extern int exit_on_error;
623 extern int abort_on_flags;
624 extern int print_stats;
625 extern int64_t stats_period;
626 extern int qp_hist;
627 extern int stdin_interaction;
628 extern int frame_bits_per_raw_sample;
629 extern AVIOContext *progress_avio;
630 extern float max_error_rate;
631 extern char *videotoolbox_pixfmt;
632 
633 extern char *filter_nbthreads;
634 extern int filter_complex_nbthreads;
635 extern int vstats_version;
636 extern int auto_conversion_filters;
637 
638 extern const AVIOInterruptCB int_cb;
639 
640 extern const OptionDef options[];
641 extern const HWAccel hwaccels[];
642 #if CONFIG_QSV
643 extern char *qsv_device;
644 #endif
645 extern HWDevice *filter_hw_device;
646 
647 
648 void term_init(void);
649 void term_exit(void);
650 
651 void show_usage(void);
652 
655 
657 
659 void check_filter_outputs(void);
663 
664 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub);
665 
667 
668 int ffmpeg_parse_options(int argc, char **argv);
669 
672 
673 HWDevice *hw_device_get_by_name(const char *name);
674 int hw_device_init_from_string(const char *arg, HWDevice **dev);
675 void hw_device_free_all(void);
676 
680 
682 
683 #endif /* FFTOOLS_FFMPEG_H */
OptionsContext::readrate
float readrate
Definition: ffmpeg.h:122
AVSubtitle
Definition: avcodec.h:2289
OptionsContext::nb_hwaccels
int nb_hwaccels
Definition: ffmpeg.h:131
OptionsContext::nb_codec_names
int nb_codec_names
Definition: ffmpeg.h:104
InputFilter::sample_aspect_ratio
AVRational sample_aspect_ratio
Definition: ffmpeg.h:254
AVCodec
AVCodec.
Definition: codec.h:202
OptionsContext::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:119
OutputStream::data_size
uint64_t data_size
Definition: ffmpeg.h:545
InputFile::start_time
int64_t start_time
Definition: ffmpeg.h:414
audio_sync_method
int audio_sync_method
Definition: ffmpeg_opt.c:153
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:153
StreamMap::file_index
int file_index
Definition: ffmpeg.h:82
OutputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:269
FKF_PREV_FORCED_T
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:438
OptionsContext::canvas_sizes
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:213
InputStream::hwaccel_device
char * hwaccel_device
Definition: ffmpeg.h:374
OptionsContext::dump_attachment
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:128
OutputStream::attachment_filename
const char * attachment_filename
Definition: ffmpeg.h:536
configure_filtergraph
int configure_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:983
OptionsContext::nb_audio_sample_rate
int nb_audio_sample_rate
Definition: ffmpeg.h:108
OutputStream::frame_number
int frame_number
Definition: ffmpeg.h:459
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:189
video_sync_method
int video_sync_method
Definition: ffmpeg_opt.c:154
InputFilter::width
int width
Definition: ffmpeg.h:253
OptionsContext::nb_time_bases
int nb_time_bases
Definition: ffmpeg.h:234
InputFilter::displaymatrix
int32_t * displaymatrix
Definition: ffmpeg.h:261
OutputStream::last_dropped
int last_dropped
Definition: ffmpeg.h:482
FKF_PREV_FORCED_N
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:437
InputFile::pkt
AVPacket * pkt
Definition: ffmpeg.h:423
FilterGraph::graph_desc
const char * graph_desc
Definition: ffmpeg.h:291
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:388
OutputStream::enc_ctx
AVCodecContext * enc_ctx
Definition: ffmpeg.h:475
OptionsContext::nb_rc_overrides
int nb_rc_overrides
Definition: ffmpeg.h:188
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:296
InputFile::nb_streams_warn
int nb_streams_warn
Definition: ffmpeg.h:418
OptionsContext::hwaccels
SpecifierOpt * hwaccels
Definition: ffmpeg.h:130
OptionsContext::apad
SpecifierOpt * apad
Definition: ffmpeg.h:225
frame_drop_threshold
float frame_drop_threshold
Definition: ffmpeg_opt.c:155
rational.h
InputStream::dec_ctx
AVCodecContext * dec_ctx
Definition: ffmpeg.h:311
OptionsContext::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:154
InputStream::user_set_discard
int user_set_discard
Definition: ffmpeg.h:306
StreamMap::sync_stream_index
int sync_stream_index
Definition: ffmpeg.h:85
OptionsContext::rc_overrides
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:187
OutputStream::packets_written
uint64_t packets_written
Definition: ffmpeg.h:547
OptionsContext::nb_metadata
int nb_metadata
Definition: ffmpeg.h:170
nb_input_streams
int nb_input_streams
Definition: ffmpeg.c:149
OptionsContext::nb_hwaccel_devices
int nb_hwaccel_devices
Definition: ffmpeg.h:133
InputFile::readrate
float readrate
Definition: ffmpeg.h:420
OutputStream::keep_pix_fmt
int keep_pix_fmt
Definition: ffmpeg.h:541
OptionsContext::nb_attachments
int nb_attachments
Definition: ffmpeg.h:148
OutputFile::start_time
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:581
OptionsContext::frame_aspect_ratios
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:185
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:526
OptionsContext::mux_max_delay
float mux_max_delay
Definition: ffmpeg.h:156
OptionsContext::nb_chroma_intra_matrices
int nb_chroma_intra_matrices
Definition: ffmpeg.h:194
OptionsContext::nb_pass
int nb_pass
Definition: ffmpeg.h:216
OutputStream::rotate_overridden
int rotate_overridden
Definition: ffmpeg.h:493
FKF_T
@ FKF_T
Definition: ffmpeg.h:439
OutputStream::hwaccel_ctx
void * hwaccel_ctx
Definition: ffmpeg.h:485
OptionsContext::subtitle_disable
int subtitle_disable
Definition: ffmpeg.h:162
OptionsContext::nb_apad
int nb_apad
Definition: ffmpeg.h:226
OptionsContext::qscale
SpecifierOpt * qscale
Definition: ffmpeg.h:179
OutputStream::index
int index
Definition: ffmpeg.h:455
b
#define b
Definition: input.c:40
FilterGraph::index
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Definition: ffmpeg.h:290
OptionsContext::inter_matrices
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:191
AudioChannelMap::stream_idx
int stream_idx
Definition: ffmpeg.h:90
InputStream::nb_filters
int nb_filters
Definition: ffmpeg.h:367
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:513
OutputStream::sws_dict
AVDictionary * sws_dict
Definition: ffmpeg.h:522
nb_output_files
int nb_output_files
Definition: ffmpeg.c:156
show_usage
void show_usage(void)
Definition: ffmpeg_opt.c:3356
FilterGraph::nb_inputs
int nb_inputs
Definition: ffmpeg.h:297
OptionsContext::bitexact
int bitexact
Definition: ffmpeg.h:158
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:286
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:380
InputStream::decoding_needed
int decoding_needed
Definition: ffmpeg.h:307
OptionsContext::format
const char * format
Definition: ffmpeg.h:101
videotoolbox_pixfmt
char * videotoolbox_pixfmt
Definition: ffmpeg_videotoolbox.c:35
OutputStream::max_frames
int64_t max_frames
Definition: ffmpeg.h:478
OutputStream::rotate_override_value
double rotate_override_value
Definition: ffmpeg.h:495
OptionsContext::nb_disposition
int nb_disposition
Definition: ffmpeg.h:230
qp_hist
int qp_hist
Definition: ffmpeg_opt.c:168
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:258
OutputStream::forced_keyframes_pexpr
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:505
InputFilter::ist
struct InputStream * ist
Definition: ffmpeg.h:243
init_simple_filtergraph
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
OptionsContext::nb_guess_layout_max
int nb_guess_layout_max
Definition: ffmpeg.h:224
AVFifoBuffer
Definition: fifo.h:31
InputFile::eof_reached
int eof_reached
Definition: ffmpeg.h:403
OutputStream::encoding_needed
int encoding_needed
Definition: ffmpeg.h:458
InputStream
Definition: ffmpeg.h:302
filter_nbthreads
char * filter_nbthreads
Definition: ffmpeg_opt.c:172
OptionsContext::chapters_input_file
int chapters_input_file
Definition: ffmpeg.h:150
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:164
OutputStream::forced_kf_pts
int64_t * forced_kf_pts
Definition: ffmpeg.h:501
OptionsContext::nb_presets
int nb_presets
Definition: ffmpeg.h:200
stats_period
int64_t stats_period
Definition: ffmpeg_opt.c:176
OptionsContext::rate_emu
int rate_emu
Definition: ffmpeg.h:121
do_deinterlace
int do_deinterlace
Definition: ffmpeg_opt.c:156
dts_delta_threshold
float dts_delta_threshold
Definition: ffmpeg_opt.c:149
fifo.h
OutputStream::filters
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:518
bsf.h
vstats_version
int vstats_version
Definition: ffmpeg_opt.c:174
hwaccels
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:137
OutputStream::initialized
int initialized
Definition: ffmpeg.h:532
OptionsContext::nb_dump_attachment
int nb_dump_attachment
Definition: ffmpeg.h:129
OptionsContext::g
OptionGroup * g
Definition: ffmpeg.h:95
OutputStream::disposition
char * disposition
Definition: ffmpeg.h:539
InputStream::sub2video
struct InputStream::sub2video sub2video
InputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:246
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:513
OptionsContext::nb_top_field_first
int nb_top_field_first
Definition: ffmpeg.h:196
InputStream::decoder_opts
AVDictionary * decoder_opts
Definition: ffmpeg.h:341
OptionsContext::nb_autorotate
int nb_autorotate
Definition: ffmpeg.h:137
OutputStream::forced_keyframes_expr_const_values
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:506
InputStream::filter_in_rescale_delta_last
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:328
OptionsContext::nb_reinit_filters
int nb_reinit_filters
Definition: ffmpeg.h:210
InputStream::nb_packets
uint64_t nb_packets
Definition: ffmpeg.h:390
OutputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:280
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:248
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:687
OptionsContext::time_bases
SpecifierOpt * time_bases
Definition: ffmpeg.h:233
qsv_init
int qsv_init(AVCodecContext *s)
OutputFile::opts
AVDictionary * opts
Definition: ffmpeg.h:578
InputStream::sub2video::last_pts
int64_t last_pts
Definition: ffmpeg.h:356
do_pkt_dump
int do_pkt_dump
Definition: ffmpeg_opt.c:160
OptionsContext::nb_audio_channel_maps
int nb_audio_channel_maps
Definition: ffmpeg.h:143
HWACCEL_VIDEOTOOLBOX
@ HWACCEL_VIDEOTOOLBOX
Definition: ffmpeg.h:63
InputFile
Definition: ffmpeg.h:401
OptionsContext::recording_time
int64_t recording_time
Definition: ffmpeg.h:152
input_files
InputFile ** input_files
Definition: ffmpeg.c:150
OptionsContext::metadata_chapters_manual
int metadata_chapters_manual
Definition: ffmpeg.h:146
OptionsContext::pass
SpecifierOpt * pass
Definition: ffmpeg.h:215
OutputStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg.h:537
OptionsContext::nb_stream_maps
int nb_stream_maps
Definition: ffmpeg.h:141
OptionsContext::audio_disable
int audio_disable
Definition: ffmpeg.h:161
InputStream::first_dts
int64_t first_dts
dts of the first packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:321
InputStream::hwaccel_pix_fmt
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:382
OutputFile::shortest
int shortest
Definition: ffmpeg.h:584
OutputStream::last_nb0_frames
int last_nb0_frames[3]
Definition: ffmpeg.h:483
InputStream::dts
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:322
AudioChannelMap
Definition: ffmpeg.h:89
OptionsContext::presets
SpecifierOpt * presets
Definition: ffmpeg.h:199
OptionsContext::copy_initial_nonkeyframes
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:201
OutputStream::sync_opts
int64_t sync_opts
Definition: ffmpeg.h:463
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:232
StreamMap::linklabel
char * linklabel
Definition: ffmpeg.h:86
OutputFilter::width
int width
Definition: ffmpeg.h:277
HWACCEL_GENERIC
@ HWACCEL_GENERIC
Definition: ffmpeg.h:62
OutputStream::forced_keyframes
char * forced_keyframes
Definition: ffmpeg.h:504
InputStream::cfr_next_pts
int64_t cfr_next_pts
Definition: ffmpeg.h:335
s
#define s(width, name)
Definition: cbs_vp9.c:257
FilterGraph::outputs
OutputFilter ** outputs
Definition: ffmpeg.h:298
vstats_filename
char * vstats_filename
Definition: ffmpeg_opt.c:145
OutputStream::frame_aspect_ratio
AVRational frame_aspect_ratio
Definition: ffmpeg.h:497
InputStream::framerate
AVRational framerate
Definition: ffmpeg.h:342
OutputStream::mux_timebase
AVRational mux_timebase
Definition: ffmpeg.h:470
ENCODER_FINISHED
@ ENCODER_FINISHED
Definition: ffmpeg.h:449
OutputStream::audio_channels_mapped
int audio_channels_mapped
Definition: ffmpeg.h:511
InputFilter
Definition: ffmpeg.h:241
OutputStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg.h:538
AVHWDeviceType
AVHWDeviceType
Definition: hwcontext.h:27
OutputFilter::ost
struct OutputStream * ost
Definition: ffmpeg.h:268
output_streams
OutputStream ** output_streams
Definition: ffmpeg.c:153
OptionsContext::metadata_streams_manual
int metadata_streams_manual
Definition: ffmpeg.h:145
forced_keyframes_const
forced_keyframes_const
Definition: ffmpeg.h:434
MUXER_FINISHED
@ MUXER_FINISHED
Definition: ffmpeg.h:450
OutputStream::avfilter
char * avfilter
Definition: ffmpeg.h:517
InputStream::sub2video::sub_queue
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:358
audio_drift_threshold
float audio_drift_threshold
Definition: ffmpeg_opt.c:148
InputStream::filters
InputFilter ** filters
Definition: ffmpeg.h:366
OptionsContext::nb_copy_initial_nonkeyframes
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:202
max_error_rate
float max_error_rate
Definition: ffmpeg_opt.c:171
AVExpr
Definition: eval.c:157
OutputFile::header_written
int header_written
Definition: ffmpeg.h:586
OptionsContext::sample_fmts
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:177
OptionsContext::shortest
int shortest
Definition: ffmpeg.h:157
InputStream::hwaccel_retrieve_data
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:381
InputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:244
AVThreadMessageQueue
Definition: threadmessage.c:25
OptionsContext::accurate_seek
int accurate_seek
Definition: ffmpeg.h:123
OutputStream::last_frame
AVFrame * last_frame
Definition: ffmpeg.h:480
OptionsContext::nb_canvas_sizes
int nb_canvas_sizes
Definition: ffmpeg.h:214
OptionsContext::nb_max_muxing_queue_size
int nb_max_muxing_queue_size
Definition: ffmpeg.h:220
arg
const char * arg
Definition: jacosubdec.c:67
OutputStream::encoder_opts
AVDictionary * encoder_opts
Definition: ffmpeg.h:521
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:325
AVFormatContext
Format I/O context.
Definition: avformat.h:1109
OutputFilter::height
int height
Definition: ffmpeg.h:277
OptionsContext::nb_filter_scripts
int nb_filter_scripts
Definition: ffmpeg.h:208
OptionsContext::reinit_filters
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:209
OutputFilter::name
uint8_t * name
Definition: ffmpeg.h:270
InputStream::sub2video::w
int w
Definition: ffmpeg.h:360
HWAccel::id
enum HWAccelID id
Definition: ffmpeg.h:69
InputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:343
InputStream::st
AVStream * st
Definition: ffmpeg.h:304
forced_keyframes_const_names
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
OptionsContext::filters
SpecifierOpt * filters
Definition: ffmpeg.h:205
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:211
OptionsContext::codec_tags
SpecifierOpt * codec_tags
Definition: ffmpeg.h:175
InputStream::next_pts
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:324
frame_bits_per_raw_sample
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:170
OptionsContext::force_fps
SpecifierOpt * force_fps
Definition: ffmpeg.h:183
OptionsContext::metadata_global_manual
int metadata_global_manual
Definition: ffmpeg.h:144
OptionsContext::nb_intra_matrices
int nb_intra_matrices
Definition: ffmpeg.h:190
OutputStream::audio_channels_map
int * audio_channels_map
Definition: ffmpeg.h:510
InputStream::hwaccel_id
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:372
InputFilter::channels
int channels
Definition: ffmpeg.h:257
OutputStream::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:488
InputFilter::eof
int eof
Definition: ffmpeg.h:263
InputStream::fix_sub_duration
int fix_sub_duration
Definition: ffmpeg.h:348
OutputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:492
InputStream::hwaccel_output_format
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:375
OutputFilter::channel_layout
uint64_t channel_layout
Definition: ffmpeg.h:281
HWAccel::pix_fmt
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:70
OptionsContext::max_frames
SpecifierOpt * max_frames
Definition: ffmpeg.h:171
AVFilterGraph
Definition: avfilter.h:845
do_benchmark_all
int do_benchmark_all
Definition: ffmpeg_opt.c:158
filtergraphs
FilterGraph ** filtergraphs
Definition: ffmpeg.c:158
InputStream::min_pts
int64_t min_pts
Definition: ffmpeg.h:330
OptionGroup
Definition: cmdutils.h:314
OptionsContext::program
SpecifierOpt * program
Definition: ffmpeg.h:231
HWAccel::name
const char * name
Definition: ffmpeg.h:67
FilterGraph::nb_outputs
int nb_outputs
Definition: ffmpeg.h:299
OutputStream::logfile
FILE * logfile
Definition: ffmpeg.h:514
swresample.h
InputStream::sub2video::initialize
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:361
guess_input_channel_layout
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2127
OptionsContext::nb_metadata_map
int nb_metadata_map
Definition: ffmpeg.h:198
OptionsContext::nb_filters
int nb_filters
Definition: ffmpeg.h:206
InputStream::frames_decoded
uint64_t frames_decoded
Definition: ffmpeg.h:392
OutputFilter::formats
int * formats
Definition: ffmpeg.h:284
OutputStream::enc
const AVCodec * enc
Definition: ffmpeg.h:477
InputStream::next_dts
int64_t next_dts
Definition: ffmpeg.h:320
FilterGraph
Definition: ffmpeg.h:289
print_stats
int print_stats
Definition: ffmpeg_opt.c:167
InputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:242
options
const OptionDef options[]
eval.h
OutputStream::force_fps
int force_fps
Definition: ffmpeg.h:491
OptionsContext::nb_frame_aspect_ratios
int nb_frame_aspect_ratios
Definition: ffmpeg.h:186
OutputStream::filter
OutputFilter * filter
Definition: ffmpeg.h:516
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:373
OptionsContext::thread_queue_size
int thread_queue_size
Definition: ffmpeg.h:124
AVMediaType
AVMediaType
Definition: avutil.h:199
InputStream::decoded_frame
AVFrame * decoded_frame
Definition: ffmpeg.h:313
InputStream::wrap_correction_done
int wrap_correction_done
Definition: ffmpeg.h:326
InputStream::start
int64_t start
Definition: ffmpeg.h:317
InputStream::filter_frame
AVFrame * filter_frame
Definition: ffmpeg.h:314
threadmessage.h
OutputStream::error
int64_t error[4]
Definition: ffmpeg.h:573
InputStream::file_index
int file_index
Definition: ffmpeg.h:303
OutputStream::forced_kf_count
int forced_kf_count
Definition: ffmpeg.h:502
InputFile::last_ts
int64_t last_ts
Definition: ffmpeg.h:413
FilterGraph::graph
AVFilterGraph * graph
Definition: ffmpeg.h:293
InputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:315
InputStream::got_output
int got_output
Definition: ffmpeg.h:350
StreamMap
Definition: ffmpeg.h:80
copy_ts
int copy_ts
Definition: ffmpeg_opt.c:161
OptionsContext::filter_scripts
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:207
avio.h
copy_tb
int copy_tb
Definition: ffmpeg_opt.c:163
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:383
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:195
HWDevice::device_ref
AVBufferRef * device_ref
Definition: ffmpeg.h:76
OutputStream::source_index
int source_index
Definition: ffmpeg.h:456
OptionsContext::nb_discard
int nb_discard
Definition: ffmpeg.h:228
OSTFinished
OSTFinished
Definition: ffmpeg.h:448
OutputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:267
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:393
OutputFile::limit_filesize
uint64_t limit_filesize
Definition: ffmpeg.h:582
check_filter_outputs
void check_filter_outputs(void)
Definition: ffmpeg_filter.c:635
OptionsContext::metadata
SpecifierOpt * metadata
Definition: ffmpeg.h:169
InputStream::max_pts
int64_t max_pts
Definition: ffmpeg.h:331
do_benchmark
int do_benchmark
Definition: ffmpeg_opt.c:157
OptionsContext::nb_autoscale
int nb_autoscale
Definition: ffmpeg.h:238
pthread_t
Definition: os2threads.h:44
OutputStream::pict_type
int pict_type
Definition: ffmpeg.h:570
OptionsContext::frame_rates
SpecifierOpt * frame_rates
Definition: ffmpeg.h:109
OutputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:274
InputFile::time_base
AVRational time_base
Definition: ffmpeg.h:409
InputFile::duration
int64_t duration
Definition: ffmpeg.h:407
StreamMap::sync_file_index
int sync_file_index
Definition: ffmpeg.h:84
OutputStream::first_pts
int64_t first_pts
Definition: ffmpeg.h:466
HWACCEL_AUTO
@ HWACCEL_AUTO
Definition: ffmpeg.h:61
OptionsContext::autorotate
SpecifierOpt * autorotate
Definition: ffmpeg.h:136
OutputStream::max_frame_rate
AVRational max_frame_rate
Definition: ffmpeg.h:489
InputStream::guess_layout_max
int guess_layout_max
Definition: ffmpeg.h:344
OutputStream::filters_script
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:519
OutputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:481
OutputStream::apad
char * apad
Definition: ffmpeg.h:524
OptionsContext::nb_hwaccel_output_formats
int nb_hwaccel_output_formats
Definition: ffmpeg.h:135
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:181
OptionsContext::metadata_map
SpecifierOpt * metadata_map
Definition: ffmpeg.h:197
InputStream::ret
int ret
Definition: ffmpeg.h:351
StreamMap::stream_index
int stream_index
Definition: ffmpeg.h:83
OptionsContext::nb_qscale
int nb_qscale
Definition: ffmpeg.h:180
OptionsContext::stream_maps
StreamMap * stream_maps
Definition: ffmpeg.h:140
OptionsContext::nb_ts_scale
int nb_ts_scale
Definition: ffmpeg.h:127
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:212
OutputStream::sync_ist
struct InputStream * sync_ist
Definition: ffmpeg.h:462
exit_on_error
int exit_on_error
Definition: ffmpeg_opt.c:165
output_files
OutputFile ** output_files
Definition: ffmpeg.c:155
OutputFile::ost_index
int ost_index
Definition: ffmpeg.h:579
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:379
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:402
InputFile::accurate_seek
int accurate_seek
Definition: ffmpeg.h:421
videotoolbox_init
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg_videotoolbox.c:129
OptionsContext::nb_copy_prior_start
int nb_copy_prior_start
Definition: ffmpeg.h:204
OutputStream::muxing_queue
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:558
OutputFilter::channel_layouts
uint64_t * channel_layouts
Definition: ffmpeg.h:285
OutputStream::ref_par
AVCodecParameters * ref_par
Definition: ffmpeg.h:476
OptionsContext::bitstream_filters
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:173
OptionsContext::streamid_map
int * streamid_map
Definition: ffmpeg.h:166
InputFile::recording_time
int64_t recording_time
Definition: ffmpeg.h:415
avcodec.h
OptionsContext::passlogfiles
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:217
InputFile::loop
int loop
Definition: ffmpeg.h:406
SpecifierOpt
Definition: cmdutils.h:151
OptionsContext::autoscale
SpecifierOpt * autoscale
Definition: ffmpeg.h:237
AVStream
Stream structure.
Definition: avformat.h:857
OptionsContext::nb_bitstream_filters
int nb_bitstream_filters
Definition: ffmpeg.h:174
pixfmt.h
OutputStream::max_muxing_queue_size
int max_muxing_queue_size
Definition: ffmpeg.h:555
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:166
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:245
OptionsContext::nb_streamid_map
int nb_streamid_map
Definition: ffmpeg.h:167
sdp_filename
char * sdp_filename
Definition: ffmpeg_opt.c:146
OptionsContext::audio_channel_maps
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:142
OutputStream::forced_kf_ref_pts
int64_t forced_kf_ref_pts
Definition: ffmpeg.h:500
InputStream::reinit_filters
int reinit_filters
Definition: ffmpeg.h:369
hw_device_free_all
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:288
avformat.h
InputFile::eagain
int eagain
Definition: ffmpeg.h:404
HWAccelID
HWAccelID
Definition: ffmpeg.h:59
dict.h
InputFile::ist_index
int ist_index
Definition: ffmpeg.h:405
OptionsContext::nb_sample_fmts
int nb_sample_fmts
Definition: ffmpeg.h:178
ost
OutputStream * ost
Definition: ffmpeg_filter.c:163
InputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:256
OptionsContext::nb_enc_time_bases
int nb_enc_time_bases
Definition: ffmpeg.h:236
HWAccel::init
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:68
OptionsContext::nb_max_frames
int nb_max_frames
Definition: ffmpeg.h:172
OptionsContext::disposition
SpecifierOpt * disposition
Definition: ffmpeg.h:229
ifilter_parameters_from_frame
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
Definition: ffmpeg_filter.c:1156
OutputFilter::format
int format
Definition: ffmpeg.h:279
filter_hw_device
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:143
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:155
HWDevice::name
const char * name
Definition: ffmpeg.h:74
InputFilter::format
int format
Definition: ffmpeg.h:251
OutputStream::finished
OSTFinished finished
Definition: ffmpeg.h:525
OptionsContext::nb_audio_channels
int nb_audio_channels
Definition: ffmpeg.h:106
OptionsContext::guess_layout_max
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:223
OptionsContext::enc_time_bases
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:235
avfilter.h
OutputStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg.h:468
OptionsContext::video_disable
int video_disable
Definition: ffmpeg.h:160
OutputStream::quality
int quality
Definition: ffmpeg.h:553
OptionsContext::nb_forced_key_frames
int nb_forced_key_frames
Definition: ffmpeg.h:182
OptionsContext::max_frame_rates
SpecifierOpt * max_frame_rates
Definition: ffmpeg.h:111
InputStream::nb_samples
int64_t nb_samples
Definition: ffmpeg.h:337
InputFilter::height
int height
Definition: ffmpeg.h:253
OptionsContext::frame_pix_fmts
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:115
OutputStream::frames_encoded
uint64_t frames_encoded
Definition: ffmpeg.h:549
HWACCEL_NONE
@ HWACCEL_NONE
Definition: ffmpeg.h:60
InputFile::ts_offset
int64_t ts_offset
Definition: ffmpeg.h:412
OptionsContext::nb_frame_sizes
int nb_frame_sizes
Definition: ffmpeg.h:114
OptionsContext::hwaccel_devices
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:132
InputStream::discard
int discard
Definition: ffmpeg.h:305
OptionsContext::max_muxing_queue_size
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:219
AVFilterContext
An instance of a filter.
Definition: avfilter.h:386
remove_avoptions
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:678
OutputFilter
Definition: ffmpeg.h:266
InputStream::sub2video::frame
AVFrame * frame
Definition: ffmpeg.h:359
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int nb_muxing_queue_data_threshold
Definition: ffmpeg.h:222
OptionsContext::nb_inter_matrices
int nb_inter_matrices
Definition: ffmpeg.h:192
OptionsContext::muxing_queue_data_threshold
SpecifierOpt * muxing_queue_data_threshold
Definition: ffmpeg.h:221
avutil.h
start_at_zero
int start_at_zero
Definition: ffmpeg_opt.c:162
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
OutputStream::file_index
int file_index
Definition: ffmpeg.h:454
audio_volume
int audio_volume
Definition: ffmpeg_opt.c:152
OptionsContext::copy_prior_start
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:203
InputStream::sub2video
Definition: ffmpeg.h:355
OutputFile::ctx
AVFormatContext * ctx
Definition: ffmpeg.h:577
OutputFilter::out_tmp
AVFilterInOut * out_tmp
Definition: ffmpeg.h:273
auto_conversion_filters
int auto_conversion_filters
Definition: ffmpeg_opt.c:175
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int h
Definition: ffmpeg.h:360
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int is_cfr
Definition: ffmpeg.h:490
OutputStream::autoscale
int autoscale
Definition: ffmpeg.h:494
InputFilter::hw_frames_ctx
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:260
InputStream::hw_frames_ctx
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:384
FKF_N_FORCED
@ FKF_N_FORCED
Definition: ffmpeg.h:436
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const char ** attachments
Definition: ffmpeg.h:147
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int64_t end_pts
Definition: ffmpeg.h:357
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size_t muxing_queue_data_size
Definition: ffmpeg.h:564
do_hex_dump
int do_hex_dump
Definition: ffmpeg_opt.c:159
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void * hwaccel_ctx
Definition: ffmpeg.h:378
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double ts_scale
Definition: ffmpeg.h:339
OptionsContext::ts_scale
SpecifierOpt * ts_scale
Definition: ffmpeg.h:126
AVPacket
This structure stores compressed data.
Definition: packet.h:350
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SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:193
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int reconfiguration
Definition: ffmpeg.h:294
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Definition: ffmpeg.h:75
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int32_t
int32_t
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size_t muxing_queue_data_threshold
Definition: ffmpeg.h:567
FKF_NB
@ FKF_NB
Definition: ffmpeg.h:440
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Definition: muxing.c:54
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
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Definition: muxing.c:55
dts_error_threshold
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Definition: ffmpeg_opt.c:150
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SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:134
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Definition: ffmpeg.h:396
nb_output_streams
int nb_output_streams
Definition: ffmpeg.c:154
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int saw_first_ts
Definition: ffmpeg.h:340
OutputStream::stream_copy
int stream_copy
Definition: ffmpeg.h:527
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AVDictionary * swr_opts
Definition: ffmpeg.h:523
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int forced_kf_index
Definition: ffmpeg.h:503
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Definition: ffmpeg.h:278
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Definition: ffmpeg.h:479
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int nb_streams
Definition: ffmpeg.h:416
FKF_N
@ FKF_N
Definition: ffmpeg.h:435
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int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:580
int
int
Definition: ffmpeg_filter.c:156
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uint64_t samples_encoded
Definition: ffmpeg.h:550
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int dropped_keyframe
Definition: ffmpeg.h:507
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Definition: ffmpeg.h:534
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Definition: ffmpeg_hw.c:44
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Definition: ffmpeg.h:176
AVFilterInOut
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:1005
InputStream::dec
const AVCodec * dec
Definition: ffmpeg.h:312
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Definition: ffmpeg.h:473
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SpecifierOpt * discard
Definition: ffmpeg.h:227
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Definition: ffmpeg.h:352
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int filtergraph_is_simple(FilterGraph *fg)
Definition: ffmpeg_filter.c:1186
term_exit
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Definition: ffmpeg.c:337
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Definition: ffmpeg_opt.c:173
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Definition: ffmpeg.h:576
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Definition: ffmpeg.h:120
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Definition: ffmpeg.h:471
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Definition: ffmpeg.h:184