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ffmpeg.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef 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 #if HAVE_PTHREADS
29 #include <pthread.h>
30 #endif
31 
32 #include "cmdutils.h"
33 
34 #include "libavformat/avformat.h"
35 #include "libavformat/avio.h"
36 
37 #include "libavcodec/avcodec.h"
38 
39 #include "libavfilter/avfilter.h"
40 
41 #include "libavutil/avutil.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/eval.h"
44 #include "libavutil/fifo.h"
45 #include "libavutil/hwcontext.h"
46 #include "libavutil/pixfmt.h"
47 #include "libavutil/rational.h"
49 
51 
52 #define VSYNC_AUTO -1
53 #define VSYNC_PASSTHROUGH 0
54 #define VSYNC_CFR 1
55 #define VSYNC_VFR 2
56 #define VSYNC_VSCFR 0xfe
57 #define VSYNC_DROP 0xff
58 
59 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
60 
61 enum HWAccelID {
68 };
69 
70 typedef struct HWAccel {
71  const char *name;
73  enum HWAccelID id;
75 } HWAccel;
76 
77 typedef struct HWDevice {
78  char *name;
81 } HWDevice;
82 
83 /* select an input stream for an output stream */
84 typedef struct StreamMap {
85  int disabled; /* 1 is this mapping is disabled by a negative map */
90  char *linklabel; /* name of an output link, for mapping lavfi outputs */
91 } StreamMap;
92 
93 typedef struct {
94  int file_idx, stream_idx, channel_idx; // input
95  int ofile_idx, ostream_idx; // output
97 
98 typedef struct OptionsContext {
100 
101  /* input/output options */
102  int64_t start_time;
103  int64_t start_time_eof;
105  const char *format;
106 
119 
120  /* input options */
122  int loop;
123  int rate_emu;
126 
139 
140  /* output options */
143  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
144  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
148  const char **attachments;
150 
152 
153  int64_t recording_time;
154  int64_t stop_time;
155  uint64_t limit_filesize;
156  float mux_preload;
158  int shortest;
159  int bitexact;
160 
165 
166  /* indexed by output file stream index */
169 
217  int nb_pass;
225  int nb_apad;
237 
238 typedef struct InputFilter {
240  struct InputStream *ist;
243  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
244 
246 
247  // parameters configured for this input
248  int format;
249 
250  int width, height;
252 
254  int channels;
255  uint64_t channel_layout;
256 
258 
259  int eof;
260 } InputFilter;
261 
262 typedef struct OutputFilter {
264  struct OutputStream *ost;
267 
268  /* temporary storage until stream maps are processed */
271 
272  /* desired output stream properties */
273  int width, height;
275  int format;
277  uint64_t channel_layout;
278 
279  // those are only set if no format is specified and the encoder gives us multiple options
280  int *formats;
281  uint64_t *channel_layouts;
283 } OutputFilter;
284 
285 typedef struct FilterGraph {
286  int index;
287  const char *graph_desc;
288 
291 
296 } FilterGraph;
297 
298 typedef struct InputStream {
301  int discard; /* true if stream data should be discarded */
303  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
304 #define DECODING_FOR_OST 1
305 #define DECODING_FOR_FILTER 2
306 
310  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
311 
312  int64_t start; /* time when read started */
313  /* predicted dts of the next packet read for this stream or (when there are
314  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
315  int64_t next_dts;
316  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
317 
318  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
319  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
321 
323 
324  int64_t min_pts; /* pts with the smallest value in a current stream */
325  int64_t max_pts; /* pts with the higher value in a current stream */
326 
327  // when forcing constant input framerate through -r,
328  // this contains the pts that will be given to the next decoded frame
329  int64_t cfr_next_pts;
330 
331  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
332 
333  double ts_scale;
336  AVRational framerate; /* framerate forced with -r */
339 
341 
343  struct { /* previous decoded subtitle and related variables */
345  int ret;
347  } prev_sub;
348 
349  struct sub2video {
350  int64_t last_pts;
351  int64_t end_pts;
352  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
354  int w, h;
355  } sub2video;
356 
357  int dr1;
358 
359  /* decoded data from this stream goes into all those filters
360  * currently video and audio only */
363 
365 
366  /* hwaccel options */
371 
372  /* hwaccel context */
373  void *hwaccel_ctx;
380 
381  /* stats */
382  // combined size of all the packets read
383  uint64_t data_size;
384  /* number of packets successfully read for this stream */
385  uint64_t nb_packets;
386  // number of frames/samples retrieved from the decoder
387  uint64_t frames_decoded;
388  uint64_t samples_decoded;
389 
390  int64_t *dts_buffer;
392 
393  int got_output;
394 } InputStream;
395 
396 typedef struct InputFile {
398  int eof_reached; /* true if eof reached */
399  int eagain; /* true if last read attempt returned EAGAIN */
400  int ist_index; /* index of first stream in input_streams */
401  int loop; /* set number of times input stream should be looped */
402  int64_t duration; /* actual duration of the longest stream in a file
403  at the moment when looping happens */
404  AVRational time_base; /* time base of the duration */
406 
407  int64_t ts_offset;
408  int64_t last_ts;
409  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
411  int64_t recording_time;
412  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
413  from ctx.nb_streams if new streams appear during av_read_frame() */
414  int nb_streams_warn; /* number of streams that the user was warned of */
415  int rate_emu;
417 
418 #if HAVE_PTHREADS
419  AVThreadMessageQueue *in_thread_queue;
420  pthread_t thread; /* thread reading from this file */
421  int non_blocking; /* reading packets from the thread should not block */
422  int joined; /* the thread has been joined */
423  int thread_queue_size; /* maximum number of queued packets */
424 #endif
425 } InputFile;
426 
434 };
435 
436 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
437 
438 extern const char *const forced_keyframes_const_names[];
439 
440 typedef enum {
443 } OSTFinished ;
444 
445 typedef struct OutputStream {
446  int file_index; /* file index */
447  int index; /* stream index in the output file */
448  int source_index; /* InputStream index */
449  AVStream *st; /* stream in the output file */
450  int encoding_needed; /* true if encoding needed for this stream */
452  /* input pts and corresponding output pts
453  for A/V sync */
454  struct InputStream *sync_ist; /* input stream to sync against */
455  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
456  /* pts of the first frame encoded for this stream, used for limiting
457  * recording time */
458  int64_t first_pts;
459  /* dts of the last packet sent to the muxer */
460  int64_t last_mux_dts;
461  // the timebase of the packets sent to the muxer
464 
467 
469  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
471  int64_t max_frames;
476 
477  void *hwaccel_ctx;
478 
479  /* video only */
481  int is_cfr;
486 
488 
489  /* forced key frames */
490  int64_t *forced_kf_pts;
496 
497  /* audio only */
498  int *audio_channels_map; /* list of the channels id to pick from the source stream */
499  int audio_channels_mapped; /* number of channels in audio_channels_map */
500 
502  FILE *logfile;
503 
505  char *avfilter;
506  char *filters; ///< filtergraph associated to the -filter option
507  char *filters_script; ///< filtergraph script associated to the -filter_script option
508 
513  char *apad;
514  OSTFinished finished; /* no more packets should be written for this stream */
515  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
517 
518  // init_output_stream() has been called for this stream
519  // The encoder and the bitstream filters have been initialized and the stream
520  // parameters are set in the AVStream.
522 
524 
525  const char *attachment_filename;
528  char *disposition;
529 
531 
534 
535  /* stats */
536  // combined size of all the packets written
537  uint64_t data_size;
538  // number of packets send to the muxer
539  uint64_t packets_written;
540  // number of frames/samples sent to the encoder
541  uint64_t frames_encoded;
542  uint64_t samples_encoded;
543 
544  /* packet quality factor */
545  int quality;
546 
548 
549  /* the packets are buffered here until the muxer is ready to be initialized */
551 
552  /* packet picture type */
554 
555  /* frame encode sum of squared error values */
556  int64_t error[4];
557 } OutputStream;
558 
559 typedef struct OutputFile {
562  int ost_index; /* index of the first stream in output_streams */
563  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
564  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
565  uint64_t limit_filesize; /* filesize limit expressed in bytes */
566 
567  int shortest;
568 
570 } OutputFile;
571 
572 extern InputStream **input_streams;
573 extern int nb_input_streams;
574 extern InputFile **input_files;
575 extern int nb_input_files;
576 
578 extern int nb_output_streams;
579 extern OutputFile **output_files;
580 extern int nb_output_files;
581 
582 extern FilterGraph **filtergraphs;
583 extern int nb_filtergraphs;
584 
585 extern char *vstats_filename;
586 extern char *sdp_filename;
587 
588 extern float audio_drift_threshold;
589 extern float dts_delta_threshold;
590 extern float dts_error_threshold;
591 
592 extern int audio_volume;
593 extern int audio_sync_method;
594 extern int video_sync_method;
595 extern float frame_drop_threshold;
596 extern int do_benchmark;
597 extern int do_benchmark_all;
598 extern int do_deinterlace;
599 extern int do_hex_dump;
600 extern int do_pkt_dump;
601 extern int copy_ts;
602 extern int start_at_zero;
603 extern int copy_tb;
604 extern int debug_ts;
605 extern int exit_on_error;
606 extern int abort_on_flags;
607 extern int print_stats;
608 extern int qp_hist;
609 extern int stdin_interaction;
610 extern int frame_bits_per_raw_sample;
611 extern AVIOContext *progress_avio;
612 extern float max_error_rate;
613 extern char *videotoolbox_pixfmt;
614 
615 extern int filter_nbthreads;
616 extern int filter_complex_nbthreads;
617 extern int vstats_version;
618 
619 extern const AVIOInterruptCB int_cb;
620 
621 extern const OptionDef options[];
622 extern const HWAccel hwaccels[];
623 extern AVBufferRef *hw_device_ctx;
624 #if CONFIG_QSV
625 extern char *qsv_device;
626 #endif
627 extern HWDevice *filter_hw_device;
628 
629 
630 void term_init(void);
631 void term_exit(void);
632 
633 void reset_options(OptionsContext *o, int is_input);
634 void show_usage(void);
635 
636 void opt_output_file(void *optctx, const char *filename);
637 
640 
642 
643 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
644 void choose_sample_fmt(AVStream *st, AVCodec *codec);
645 
648 void check_filter_outputs(void);
653 
654 void sub2video_update(InputStream *ist, AVSubtitle *sub);
655 
657 
658 int ffmpeg_parse_options(int argc, char **argv);
659 
663 
664 HWDevice *hw_device_get_by_name(const char *name);
665 int hw_device_init_from_string(const char *arg, HWDevice **dev);
666 void hw_device_free_all(void);
667 
670 
672 
673 #endif /* FFTOOLS_FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:319
int nb_bitstream_filters
Definition: ffmpeg.h:465
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:218
AVRational enc_timebase
Definition: ffmpeg.h:463
int nb_dump_attachment
Definition: ffmpeg.h:130
int got_output
Definition: ffmpeg.h:344
int nb_metadata
Definition: ffmpeg.h:171
int nb_streamid_map
Definition: ffmpeg.h:168
int frame_number
Definition: ffmpeg.h:451
int width
Definition: ffmpeg.h:273
Definition: ffmpeg.h:428
int keep_pix_fmt
Definition: ffmpeg.h:530
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:161
float mux_preload
Definition: ffmpeg.h:156
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:563
HWAccelID
Definition: ffmpeg.h:61
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:266
int nb_outputs
Definition: ffmpeg.h:295
char * qsv_device
Definition: ffmpeg_qsv.c:31
AVDictionary * swr_opts
Definition: ffmpeg.h:511
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target)
Definition: ffmpeg_filter.c:63
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
int stream_copy
Definition: ffmpeg.h:516
AVRational frame_rate
Definition: ffmpeg.h:480
int64_t * forced_kf_pts
Definition: ffmpeg.h:490
int64_t start_time_eof
Definition: ffmpeg.h:103
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:379
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:506
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:135
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:81
int data_disable
Definition: ffmpeg.h:164
float mux_max_delay
Definition: ffmpeg.h:157
int exit_on_error
Definition: ffmpeg_opt.c:103
int64_t cfr_next_pts
Definition: ffmpeg.h:329
int accurate_seek
Definition: ffmpeg.h:416
OutputFile ** output_files
Definition: ffmpeg.c:151
int nb_forced_key_frames
Definition: ffmpeg.h:183
int * streamid_map
Definition: ffmpeg.h:167
Main libavfilter public API header.
int nb_stream_maps
Definition: ffmpeg.h:142
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:202
int ostream_idx
Definition: ffmpeg.h:95
int nb_chroma_intra_matrices
Definition: ffmpeg.h:195
AVRational framerate
Definition: ffmpeg.h:336
char * name
Definition: ffmpeg.h:78
void choose_sample_fmt(AVStream *st, AVCodec *codec)
Definition: ffmpeg_filter.c:92
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:210
SpecifierOpt * ts_scale
Definition: ffmpeg.h:127
int height
Definition: ffmpeg.h:250
AVCodecParserContext * parser
Definition: ffmpeg.h:532
int64_t max_pts
Definition: ffmpeg.h:325
AVFilterInOut * out_tmp
Definition: ffmpeg.h:269
int bitexact
Definition: ffmpeg.h:159
int decoding_needed
Definition: ffmpeg.h:303
int nb_canvas_sizes
Definition: ffmpeg.h:215
The bitstream filter state.
Definition: avcodec.h:5557
int rotate_overridden
Definition: ffmpeg.h:484
int max_muxing_queue_size
Definition: ffmpeg.h:547
const char * b
Definition: vf_curves.c:113
SpecifierOpt * discard
Definition: ffmpeg.h:226
int nb_frame_pix_fmts
Definition: ffmpeg.h:118
void * hwaccel_ctx
Definition: ffmpeg.h:477
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:178
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:222
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:269
int eagain
Definition: ffmpeg.h:399
Convenience header that includes libavutil's core.
forced_keyframes_const
Definition: ffmpeg.h:427
int quality
Definition: ffmpeg.h:545
int cuvid_init(AVCodecContext *s)
Definition: ffmpeg_cuvid.c:30
AVFrame * filter_frame
Definition: ffmpeg.h:310
int do_benchmark_all
Definition: ffmpeg_opt.c:96
int nb_program
Definition: ffmpeg.h:231
int last_dropped
Definition: ffmpeg.h:474
FilterGraph ** filtergraphs
Definition: ffmpeg.c:154
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:375
int64_t input_ts_offset
Definition: ffmpeg.h:405
int do_hex_dump
Definition: ffmpeg_opt.c:97
int nb_filter_scripts
Definition: ffmpeg.h:209
const char * name
Definition: ffmpeg.h:71
uint64_t packets_written
Definition: ffmpeg.h:539
AVCodec.
Definition: avcodec.h:3351
int nb_dts_buffer
Definition: ffmpeg.h:391
SpecifierOpt * filters
Definition: ffmpeg.h:206
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3804
int print_stats
Definition: ffmpeg_opt.c:105
float dts_error_threshold
Definition: ffmpeg_opt.c:88
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:564
int index
Definition: ffmpeg.h:286
uint64_t data_size
Definition: ffmpeg.h:537
SpecifierOpt * qscale
Definition: ffmpeg.h:180
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:466
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:117
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:194
struct FilterGraph * graph
Definition: ffmpeg.h:241
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:190
int encoding_needed
Definition: ffmpeg.h:450
Format I/O context.
Definition: avformat.h:1325
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:632
uint64_t samples_decoded
Definition: ffmpeg.h:388
struct InputStream * ist
Definition: ffmpeg.h:240
enum HWAccelID id
Definition: ffmpeg.h:73
uint64_t frames_decoded
Definition: ffmpeg.h:387
int header_written
Definition: ffmpeg.h:569
AVFilterGraph * graph
Definition: ffmpeg.h:289
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:501
int user_set_discard
Definition: ffmpeg.h:302
int copy_initial_nonkeyframes
Definition: ffmpeg.h:526
int64_t * dts_buffer
Definition: ffmpeg.h:390
uint8_t
AVDictionary * sws_dict
Definition: ffmpeg.h:510
int nb_time_bases
Definition: ffmpeg.h:233
int stdin_interaction
Definition: ffmpeg_opt.c:107
FILE * logfile
Definition: ffmpeg.h:502
AVDictionary * opts
Definition: ffmpeg.h:561
Definition: eval.c:157
int do_benchmark
Definition: ffmpeg_opt.c:95
int audio_sync_method
Definition: ffmpeg_opt.c:91
int nb_max_frames
Definition: ffmpeg.h:173
int shortest
Definition: ffmpeg.h:567
int nb_output_streams
Definition: ffmpeg.c:150
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:412
int sync_file_index
Definition: ffmpeg.h:88
enum AVMediaType type
Definition: ffmpeg.h:243
AVDictionary * resample_opts
Definition: ffmpeg.h:512
int seek_timestamp
Definition: ffmpeg.h:104
static int flags
Definition: log.c:57
void reset_options(OptionsContext *o, int is_input)
AVFilterContext * filter
Definition: ffmpeg.h:263
int * formats
Definition: ffmpeg.h:280
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:174
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:308
int top_field_first
Definition: ffmpeg.h:337
int file_index
Definition: ffmpeg.h:299
const OptionDef options[]
Definition: ffserver.c:3948
struct InputStream::sub2video sub2video
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:322
int wrap_correction_done
Definition: ffmpeg.h:320
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:111
SpecifierOpt * disposition
Definition: ffmpeg.h:228
int64_t next_dts
Definition: ffmpeg.h:315
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:234
uint64_t channel_layout
Definition: ffmpeg.h:277
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:352
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:197
AVRational sample_aspect_ratio
Definition: ffmpeg.h:251
int rate_emu
Definition: ffmpeg.h:415
int nb_discard
Definition: ffmpeg.h:227
int sample_rate
Definition: ffmpeg.h:253
void check_filter_outputs(void)
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:377
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3310
AVFilterContext * filter
Definition: ffmpeg.h:239
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:374
int nb_filters
Definition: ffmpeg.h:207
int64_t start_time
Definition: ffmpeg.h:102
int64_t start
Definition: ffmpeg.h:312
int loop
Definition: ffmpeg.h:401
uint64_t nb_packets
Definition: ffmpeg.h:385
int seek_timestamp
Definition: ffmpeg.h:410
int64_t last_mux_dts
Definition: ffmpeg.h:460
int video_sync_method
Definition: ffmpeg_opt.c:92
int format
Definition: ffmpeg.h:248
char * sdp_filename
Definition: ffmpeg_opt.c:84
SpecifierOpt * apad
Definition: ffmpeg.h:224
int last_nb0_frames[3]
Definition: ffmpeg.h:475
int dr1
Definition: ffmpeg.h:357
int nb_hwaccel_devices
Definition: ffmpeg.h:134
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:143
int nb_disposition
Definition: ffmpeg.h:229
const char * arg
Definition: jacosubdec.c:66
SpecifierOpt * codec_tags
Definition: ffmpeg.h:176
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:188
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:72
int video_disable
Definition: ffmpeg.h:161
int eof
Definition: ffmpeg.h:259
int nb_input_files
Definition: ffmpeg.c:147
int force_fps
Definition: ffmpeg.h:482
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:414
int nb_codec_names
Definition: ffmpeg.h:108
int qp_hist
Definition: ffmpeg_opt.c:106
StreamMap * stream_maps
Definition: ffmpeg.h:141
float frame_drop_threshold
Definition: ffmpeg_opt.c:93
uint64_t limit_filesize
Definition: ffmpeg.h:155
const char * format
Definition: ffmpeg.h:105
int64_t error[4]
Definition: ffmpeg.h:556
int nb_passlogfiles
Definition: ffmpeg.h:219
int filter_nbthreads
Definition: ffmpeg_opt.c:110
int nb_force_fps
Definition: ffmpeg.h:185
OutputFilter * filter
Definition: ffmpeg.h:504
AVRational frame_aspect_ratio
Definition: ffmpeg.h:487
int nb_sample_fmts
Definition: ffmpeg.h:179
int file_index
Definition: ffmpeg.h:86
int nb_audio_channel_maps
Definition: ffmpeg.h:144
AVRational mux_timebase
Definition: ffmpeg.h:462
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:208
int nb_attachments
Definition: ffmpeg.h:149
AVCodecContext * parser_avctx
Definition: ffmpeg.h:533
char * linklabel
Definition: ffmpeg.h:90
int nb_hwaccel_output_formats
Definition: ffmpeg.h:136
int nb_ts_scale
Definition: ffmpeg.h:128
int is_cfr
Definition: ffmpeg.h:481
SpecifierOpt * audio_channels
Definition: ffmpeg.h:109
uint64_t * channel_layouts
Definition: ffmpeg.h:281
int saw_first_ts
Definition: ffmpeg.h:334
int nb_audio_sample_rate
Definition: ffmpeg.h:112
int abort_on_flags
Definition: ffmpeg_opt.c:104
SpecifierOpt * time_bases
Definition: ffmpeg.h:232
int metadata_chapters_manual
Definition: ffmpeg.h:147
struct OutputStream * ost
Definition: ffmpeg.h:264
int accurate_seek
Definition: ffmpeg.h:124
char * apad
Definition: ffmpeg.h:513
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
SpecifierOpt * pass
Definition: ffmpeg.h:216
int64_t nb_samples
Definition: ffmpeg.h:331
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:111
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:298
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:495
int64_t duration
Definition: ffmpeg.h:402
void opt_output_file(void *optctx, const char *filename)
int width
Definition: ffmpeg.h:250
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:129
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:641
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:214
int nb_codec_tags
Definition: ffmpeg.h:177
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:71
int64_t last_ts
Definition: ffmpeg.h:408
SpecifierOpt * metadata_map
Definition: ffmpeg.h:198
int do_pkt_dump
Definition: ffmpeg_opt.c:98
int64_t max_frames
Definition: ffmpeg.h:471
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:376
int audio_channels_mapped
Definition: ffmpeg.h:499
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:204
int height
Definition: ffmpeg.h:273
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:186
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:115
int stream_idx
Definition: ffmpeg.h:94
int sample_rate
Definition: ffmpeg.h:276
int nb_hwaccels
Definition: ffmpeg.h:132
int inputs_done
Definition: ffmpeg.h:523
int vstats_version
Definition: ffmpeg_opt.c:112
HWDevice * hw_device_get_by_name(const char *name)
Definition: ffmpeg_hw.c:42
int start_at_zero
Definition: ffmpeg_opt.c:100
int ret
Definition: ffmpeg.h:345
int audio_volume
Definition: ffmpeg_opt.c:90
Stream structure.
Definition: avformat.h:872
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:966
InputFilter ** filters
Definition: ffmpeg.h:361
int fix_sub_duration
Definition: ffmpeg.h:342
int64_t recording_time
Definition: ffmpeg.h:411
SpecifierOpt * hwaccels
Definition: ffmpeg.h:131
Definition: ffmpeg.h:70
SpecifierOpt * frame_rates
Definition: ffmpeg.h:113
AVStream * st
Definition: ffmpeg.h:300
int nb_presets
Definition: ffmpeg.h:201
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:368
int ost_index
Definition: ffmpeg.h:562
struct InputStream * sync_ist
Definition: ffmpeg.h:454
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:333
int64_t recording_time
Definition: ffmpeg.h:153
int unavailable
Definition: ffmpeg.h:515
void term_exit(void)
Definition: ffmpeg.c:324
int chapters_input_file
Definition: ffmpeg.h:151
int64_t stop_time
Definition: ffmpeg.h:154
float max_error_rate
Definition: ffmpeg_opt.c:109
uint64_t frames_encoded
Definition: ffmpeg.h:541
int nb_copy_prior_start
Definition: ffmpeg.h:205
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:550
OutputStream ** output_streams
Definition: ffmpeg.c:149
int ist_index
Definition: ffmpeg.h:400
const char * graph_desc
Definition: ffmpeg.h:287
int guess_layout_max
Definition: ffmpeg.h:338
int64_t start_time
Definition: ffmpeg.h:409
struct InputStream::@38 prev_sub
main external API structure.
Definition: avcodec.h:1488
InputFile ** input_files
Definition: ffmpeg.c:146
int rate_emu
Definition: ffmpeg.h:123
int * sample_rates
Definition: ffmpeg.h:282
int metadata_streams_manual
Definition: ffmpeg.h:146
const char * attachment_filename
Definition: ffmpeg.h:525
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:404
AVCodecContext * enc_ctx
Definition: ffmpeg.h:468
int audio_disable
Definition: ffmpeg.h:162
int64_t input_ts_offset
Definition: ffmpeg.h:121
int nb_filtergraphs
Definition: ffmpeg.c:155
AVFrame * decoded_frame
Definition: ffmpeg.h:309
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:257
int nb_bitstream_filters
Definition: ffmpeg.h:175
SpecifierOpt * top_field_first
Definition: ffmpeg.h:196
int channels
Definition: ffmpeg.h:254
int * audio_channels_map
Definition: ffmpeg.h:498
int configure_filtergraph(FilterGraph *fg)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:446
int metadata_global_manual
Definition: ffmpeg.h:145
double rotate_override_value
Definition: ffmpeg.h:485
int64_t sync_opts
Definition: ffmpeg.h:455
char * vstats_filename
Definition: ffmpeg_opt.c:83
AVCodecContext * dec_ctx
Definition: ffmpeg.h:307
SpecifierOpt * force_fps
Definition: ffmpeg.h:184
char * disposition
Definition: ffmpeg.h:528
int filtergraph_is_simple(FilterGraph *fg)
AVMediaType
Definition: avutil.h:199
int nb_fix_sub_duration
Definition: ffmpeg.h:213
int nb_inter_matrices
Definition: ffmpeg.h:193
int nb_streams_warn
Definition: ffmpeg.h:414
AVDictionary * decoder_opts
Definition: ffmpeg.h:335
int shortest
Definition: ffmpeg.h:158
int autorotate
Definition: ffmpeg.h:340
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:108
int64_t ts_offset
Definition: ffmpeg.h:407
int nb_qscale
Definition: ffmpeg.h:181
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:507
int nb_enc_time_bases
Definition: ffmpeg.h:235
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:133
int nb_input_streams
Definition: ffmpeg.c:145
float audio_drift_threshold
Definition: ffmpeg_opt.c:86
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:370
AVFrame * filtered_frame
Definition: ffmpeg.h:472
int nb_autorotate
Definition: ffmpeg.h:138
int nb_audio_channels
Definition: ffmpeg.h:110
int source_index
Definition: ffmpeg.h:448
InputStream ** input_streams
Definition: ffmpeg.c:144
int copy_prior_start
Definition: ffmpeg.h:527
SpecifierOpt * metadata
Definition: ffmpeg.h:170
AVIOContext * progress_avio
Definition: ffmpeg.c:140
int nb_filters
Definition: ffmpeg.h:362
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:494
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:316
int forced_kf_count
Definition: ffmpeg.h:491
int nb_intra_matrices
Definition: ffmpeg.h:191
OSTFinished finished
Definition: ffmpeg.h:514
char * forced_keyframes
Definition: ffmpeg.h:493
int nb_frame_rates
Definition: ffmpeg.h:114
uint64_t data_size
Definition: ffmpeg.h:383
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:474
A reference to a data buffer.
Definition: buffer.h:81
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:318
Main libavformat public API header.
int
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:220
int reconfiguration
Definition: ffmpeg.h:290
struct FilterGraph * graph
Definition: ffmpeg.h:265
uint64_t limit_filesize
Definition: ffmpeg.h:565
SpecifierOpt * presets
Definition: ffmpeg.h:200
SpecifierOpt * program
Definition: ffmpeg.h:230
int reinit_filters
Definition: ffmpeg.h:364
int nb_frame_sizes
Definition: ffmpeg.h:116
AVCodecParameters * ref_par
Definition: ffmpeg.h:469
Utilties for rational number calculation.
OptionGroup * g
Definition: ffmpeg.h:99
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:192
enum AVHWDeviceType type
Definition: ffmpeg.h:79
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:117
AVStream * st
Definition: muxing.c:54
AVBufferRef * device_ref
Definition: ffmpeg.h:80
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:182
uint64_t samples_encoded
Definition: ffmpeg.h:542
const char ** attachments
Definition: ffmpeg.h:148
int nb_max_muxing_queue_size
Definition: ffmpeg.h:221
AVFrame * last_frame
Definition: ffmpeg.h:473
uint64_t channel_layout
Definition: ffmpeg.h:255
int copy_ts
Definition: ffmpeg_opt.c:99
AVFormatContext * ctx
Definition: ffmpeg.h:397
int pict_type
Definition: ffmpeg.h:553
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:80
int stream_index
Definition: ffmpeg.h:87
AVCodec * enc
Definition: ffmpeg.h:470
AVSubtitle subtitle
Definition: ffmpeg.h:346
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:74
int eof_reached
Definition: ffmpeg.h:398
int nb_metadata_map
Definition: ffmpeg.h:199
int forced_kf_index
Definition: ffmpeg.h:492
int nb_rc_overrides
Definition: ffmpeg.h:189
int do_deinterlace
Definition: ffmpeg_opt.c:94
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:212
Definition: ffmpeg.h:433
pixel format definitions
AVHWDeviceType
Definition: hwcontext.h:27
char * avfilter
Definition: ffmpeg.h:505
SpecifierOpt * autorotate
Definition: ffmpeg.h:137
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:472
uint8_t * name
Definition: ffmpeg.h:242
float dts_delta_threshold
Definition: ffmpeg_opt.c:87
void * hwaccel_ctx
Definition: ffmpeg.h:373
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2078
int top_field_first
Definition: ffmpeg.h:483
OutputFilter ** outputs
Definition: ffmpeg.h:294
SpecifierOpt * max_frames
Definition: ffmpeg.h:172
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:203
int disabled
Definition: ffmpeg.h:85
AVRational frame_rate
Definition: ffmpeg.h:274
AVFormatContext * ctx
Definition: ffmpeg.h:560
int nb_output_files
Definition: ffmpeg.c:152
int hw_device_init_from_string(const char *arg, HWDevice **dev)
Definition: ffmpeg_hw.c:92
SpecifierOpt * codec_names
Definition: ffmpeg.h:107
void show_usage(void)
Definition: ffmpeg_opt.c:3260
int thread_queue_size
Definition: ffmpeg.h:125
An instance of a filter.
Definition: avfilter.h:338
char * hwaccel_device
Definition: ffmpeg.h:369
AVDictionary * encoder_opts
Definition: ffmpeg.h:509
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:292
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:378
int sync_stream_index
Definition: ffmpeg.h:89
int format
Definition: ffmpeg.h:275
int copy_tb
Definition: ffmpeg_opt.c:101
int64_t min_pts
Definition: ffmpeg.h:324
int initialized
Definition: ffmpeg.h:521
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int discard
Definition: ffmpeg.h:301
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:367
int64_t first_pts
Definition: ffmpeg.h:458
int nb_inputs
Definition: ffmpeg.h:293
int index
Definition: ffmpeg.h:447
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
OSTFinished
Definition: ffmpeg.h:440
enum AVMediaType type
Definition: ffmpeg.h:270
int nb_reinit_filters
Definition: ffmpeg.h:211
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:245
int debug_ts
Definition: ffmpeg_opt.c:102
void sub2video_update(InputStream *ist, AVSubtitle *sub)
Definition: ffmpeg.c:237
int nb_guess_layout_max
Definition: ffmpeg.h:223
void term_init(void)
Definition: ffmpeg.c:383
int nb_frame_aspect_ratios
Definition: ffmpeg.h:187
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg.h:432
simple arithmetic expression evaluator
const char * name
Definition: opengl_enc.c:103
int subtitle_disable
Definition: ffmpeg.h:163