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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 #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 {
65 };
66 
67 typedef struct HWAccel {
68  const char *name;
70  enum HWAccelID id;
72 } HWAccel;
73 
74 typedef struct HWDevice {
75  char *name;
78 } HWDevice;
79 
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82  int disabled; /* 1 is this mapping is disabled by a negative map */
87  char *linklabel; /* name of an output link, for mapping lavfi outputs */
88 } StreamMap;
89 
90 typedef struct {
91  int file_idx, stream_idx, channel_idx; // input
92  int ofile_idx, ostream_idx; // output
94 
95 typedef struct OptionsContext {
97 
98  /* input/output options */
99  int64_t start_time;
100  int64_t start_time_eof;
102  const char *format;
103 
116 
117  /* input options */
119  int loop;
120  int rate_emu;
123 
136 
137  /* output options */
140  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
141  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
145  const char **attachments;
147 
149 
150  int64_t recording_time;
151  int64_t stop_time;
152  uint64_t limit_filesize;
153  float mux_preload;
155  int shortest;
156  int bitexact;
157 
162 
163  /* indexed by output file stream index */
166 
214  int nb_pass;
222  int nb_apad;
234 
235 typedef struct InputFilter {
237  struct InputStream *ist;
240  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
241 
243 
244  // parameters configured for this input
245  int format;
246 
247  int width, height;
249 
251  int channels;
252  uint64_t channel_layout;
253 
255 
256  int eof;
257 } InputFilter;
258 
259 typedef struct OutputFilter {
261  struct OutputStream *ost;
264 
265  /* temporary storage until stream maps are processed */
268 
269  /* desired output stream properties */
270  int width, height;
272  int format;
274  uint64_t channel_layout;
275 
276  // those are only set if no format is specified and the encoder gives us multiple options
277  int *formats;
278  uint64_t *channel_layouts;
280 } OutputFilter;
281 
282 typedef struct FilterGraph {
283  int index;
284  const char *graph_desc;
285 
288 
293 } FilterGraph;
294 
295 typedef struct InputStream {
298  int discard; /* true if stream data should be discarded */
300  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
301 #define DECODING_FOR_OST 1
302 #define DECODING_FOR_FILTER 2
303 
307  AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
308 
309  int64_t start; /* time when read started */
310  /* predicted dts of the next packet read for this stream or (when there are
311  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
312  int64_t next_dts;
313  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
314 
315  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
316  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
318 
320 
321  int64_t min_pts; /* pts with the smallest value in a current stream */
322  int64_t max_pts; /* pts with the higher value in a current stream */
323 
324  // when forcing constant input framerate through -r,
325  // this contains the pts that will be given to the next decoded frame
326  int64_t cfr_next_pts;
327 
328  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
329 
330  double ts_scale;
333  AVRational framerate; /* framerate forced with -r */
336 
338 
340  struct { /* previous decoded subtitle and related variables */
342  int ret;
344  } prev_sub;
345 
346  struct sub2video {
347  int64_t last_pts;
348  int64_t end_pts;
349  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
351  int w, h;
352  } sub2video;
353 
354  int dr1;
355 
356  /* decoded data from this stream goes into all those filters
357  * currently video and audio only */
360 
362 
363  /* hwaccel options */
368 
369  /* hwaccel context */
370  void *hwaccel_ctx;
377 
378  /* stats */
379  // combined size of all the packets read
380  uint64_t data_size;
381  /* number of packets successfully read for this stream */
382  uint64_t nb_packets;
383  // number of frames/samples retrieved from the decoder
384  uint64_t frames_decoded;
385  uint64_t samples_decoded;
386 
387  int64_t *dts_buffer;
389 
390  int got_output;
391 } InputStream;
392 
393 typedef struct InputFile {
395  int eof_reached; /* true if eof reached */
396  int eagain; /* true if last read attempt returned EAGAIN */
397  int ist_index; /* index of first stream in input_streams */
398  int loop; /* set number of times input stream should be looped */
399  int64_t duration; /* actual duration of the longest stream in a file
400  at the moment when looping happens */
401  AVRational time_base; /* time base of the duration */
403 
404  int64_t ts_offset;
405  int64_t last_ts;
406  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
408  int64_t recording_time;
409  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
410  from ctx.nb_streams if new streams appear during av_read_frame() */
411  int nb_streams_warn; /* number of streams that the user was warned of */
412  int rate_emu;
414 
415 #if HAVE_THREADS
416  AVThreadMessageQueue *in_thread_queue;
417  pthread_t thread; /* thread reading from this file */
418  int non_blocking; /* reading packets from the thread should not block */
419  int joined; /* the thread has been joined */
420  int thread_queue_size; /* maximum number of queued packets */
421 #endif
422 } InputFile;
423 
431 };
432 
433 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
434 
435 extern const char *const forced_keyframes_const_names[];
436 
437 typedef enum {
440 } OSTFinished ;
441 
442 typedef struct OutputStream {
443  int file_index; /* file index */
444  int index; /* stream index in the output file */
445  int source_index; /* InputStream index */
446  AVStream *st; /* stream in the output file */
447  int encoding_needed; /* true if encoding needed for this stream */
449  /* input pts and corresponding output pts
450  for A/V sync */
451  struct InputStream *sync_ist; /* input stream to sync against */
452  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
453  /* pts of the first frame encoded for this stream, used for limiting
454  * recording time */
455  int64_t first_pts;
456  /* dts of the last packet sent to the muxer */
457  int64_t last_mux_dts;
458  // the timebase of the packets sent to the muxer
461 
464 
466  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
468  int64_t max_frames;
473 
474  void *hwaccel_ctx;
475 
476  /* video only */
478  int is_cfr;
483 
485 
486  /* forced key frames */
488  int64_t *forced_kf_pts;
494 
495  /* audio only */
496  int *audio_channels_map; /* list of the channels id to pick from the source stream */
497  int audio_channels_mapped; /* number of channels in audio_channels_map */
498 
500  FILE *logfile;
501 
503  char *avfilter;
504  char *filters; ///< filtergraph associated to the -filter option
505  char *filters_script; ///< filtergraph script associated to the -filter_script option
506 
511  char *apad;
512  OSTFinished finished; /* no more packets should be written for this stream */
513  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
515 
516  // init_output_stream() has been called for this stream
517  // The encoder and the bitstream filters have been initialized and the stream
518  // parameters are set in the AVStream.
520 
522 
523  const char *attachment_filename;
526  char *disposition;
527 
529 
530  /* stats */
531  // combined size of all the packets written
532  uint64_t data_size;
533  // number of packets send to the muxer
534  uint64_t packets_written;
535  // number of frames/samples sent to the encoder
536  uint64_t frames_encoded;
537  uint64_t samples_encoded;
538 
539  /* packet quality factor */
540  int quality;
541 
543 
544  /* the packets are buffered here until the muxer is ready to be initialized */
546 
547  /* packet picture type */
549 
550  /* frame encode sum of squared error values */
551  int64_t error[4];
552 } OutputStream;
553 
554 typedef struct OutputFile {
557  int ost_index; /* index of the first stream in output_streams */
558  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
559  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
560  uint64_t limit_filesize; /* filesize limit expressed in bytes */
561 
562  int shortest;
563 
565 } OutputFile;
566 
567 extern InputStream **input_streams;
568 extern int nb_input_streams;
569 extern InputFile **input_files;
570 extern int nb_input_files;
571 
573 extern int nb_output_streams;
574 extern OutputFile **output_files;
575 extern int nb_output_files;
576 
577 extern FilterGraph **filtergraphs;
578 extern int nb_filtergraphs;
579 
580 extern char *vstats_filename;
581 extern char *sdp_filename;
582 
583 extern float audio_drift_threshold;
584 extern float dts_delta_threshold;
585 extern float dts_error_threshold;
586 
587 extern int audio_volume;
588 extern int audio_sync_method;
589 extern int video_sync_method;
590 extern float frame_drop_threshold;
591 extern int do_benchmark;
592 extern int do_benchmark_all;
593 extern int do_deinterlace;
594 extern int do_hex_dump;
595 extern int do_pkt_dump;
596 extern int copy_ts;
597 extern int start_at_zero;
598 extern int copy_tb;
599 extern int debug_ts;
600 extern int exit_on_error;
601 extern int abort_on_flags;
602 extern int print_stats;
603 extern int qp_hist;
604 extern int stdin_interaction;
605 extern int frame_bits_per_raw_sample;
606 extern AVIOContext *progress_avio;
607 extern float max_error_rate;
608 extern char *videotoolbox_pixfmt;
609 
610 extern int filter_nbthreads;
611 extern int filter_complex_nbthreads;
612 extern int vstats_version;
613 
614 extern const AVIOInterruptCB int_cb;
615 
616 extern const OptionDef options[];
617 extern const HWAccel hwaccels[];
618 extern AVBufferRef *hw_device_ctx;
619 #if CONFIG_QSV
620 extern char *qsv_device;
621 #endif
622 extern HWDevice *filter_hw_device;
623 
624 
625 void term_init(void);
626 void term_exit(void);
627 
628 void reset_options(OptionsContext *o, int is_input);
629 void show_usage(void);
630 
631 void opt_output_file(void *optctx, const char *filename);
632 
635 
637 
638 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
639 void choose_sample_fmt(AVStream *st, AVCodec *codec);
640 
643 void check_filter_outputs(void);
648 
649 void sub2video_update(InputStream *ist, AVSubtitle *sub);
650 
652 
653 int ffmpeg_parse_options(int argc, char **argv);
654 
658 
659 HWDevice *hw_device_get_by_name(const char *name);
660 int hw_device_init_from_string(const char *arg, HWDevice **dev);
661 void hw_device_free_all(void);
662 
665 
667 
668 #endif /* FFTOOLS_FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:316
int nb_bitstream_filters
Definition: ffmpeg.h:462
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:215
AVRational enc_timebase
Definition: ffmpeg.h:460
int nb_dump_attachment
Definition: ffmpeg.h:127
int got_output
Definition: ffmpeg.h:341
int nb_metadata
Definition: ffmpeg.h:168
int nb_streamid_map
Definition: ffmpeg.h:165
int frame_number
Definition: ffmpeg.h:448
int width
Definition: ffmpeg.h:270
Definition: ffmpeg.h:425
int keep_pix_fmt
Definition: ffmpeg.h:528
Bytestream IO Context.
Definition: avio.h:161
float mux_preload
Definition: ffmpeg.h:153
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:558
HWAccelID
Definition: ffmpeg.h:58
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:263
int nb_outputs
Definition: ffmpeg.h:292
char * qsv_device
Definition: ffmpeg_qsv.c:31
AVDictionary * swr_opts
Definition: ffmpeg.h:509
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:226
int stream_copy
Definition: ffmpeg.h:514
AVRational frame_rate
Definition: ffmpeg.h:477
int64_t * forced_kf_pts
Definition: ffmpeg.h:488
int64_t start_time_eof
Definition: ffmpeg.h:100
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:376
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:504
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:132
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:81
int data_disable
Definition: ffmpeg.h:161
float mux_max_delay
Definition: ffmpeg.h:154
int exit_on_error
Definition: ffmpeg_opt.c:103
int64_t cfr_next_pts
Definition: ffmpeg.h:326
int accurate_seek
Definition: ffmpeg.h:413
OutputFile ** output_files
Definition: ffmpeg.c:154
int64_t forced_kf_ref_pts
Definition: ffmpeg.h:487
int nb_forced_key_frames
Definition: ffmpeg.h:180
int * streamid_map
Definition: ffmpeg.h:164
Main libavfilter public API header.
int nb_stream_maps
Definition: ffmpeg.h:139
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:199
int ostream_idx
Definition: ffmpeg.h:92
int nb_chroma_intra_matrices
Definition: ffmpeg.h:192
AVRational framerate
Definition: ffmpeg.h:333
char * name
Definition: ffmpeg.h:75
void choose_sample_fmt(AVStream *st, AVCodec *codec)
Definition: ffmpeg_filter.c:93
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:207
SpecifierOpt * ts_scale
Definition: ffmpeg.h:124
int height
Definition: ffmpeg.h:247
int64_t max_pts
Definition: ffmpeg.h:322
AVFilterInOut * out_tmp
Definition: ffmpeg.h:266
int bitexact
Definition: ffmpeg.h:156
int decoding_needed
Definition: ffmpeg.h:300
int nb_canvas_sizes
Definition: ffmpeg.h:212
The bitstream filter state.
Definition: avcodec.h:5720
int rotate_overridden
Definition: ffmpeg.h:481
int max_muxing_queue_size
Definition: ffmpeg.h:542
const char * b
Definition: vf_curves.c:116
SpecifierOpt * discard
Definition: ffmpeg.h:223
int nb_frame_pix_fmts
Definition: ffmpeg.h:115
void * hwaccel_ctx
Definition: ffmpeg.h:474
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:175
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:219
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:269
int eagain
Definition: ffmpeg.h:396
Convenience header that includes libavutil's core.
forced_keyframes_const
Definition: ffmpeg.h:424
int quality
Definition: ffmpeg.h:540
int cuvid_init(AVCodecContext *s)
Definition: ffmpeg_cuvid.c:30
AVFrame * filter_frame
Definition: ffmpeg.h:307
int do_benchmark_all
Definition: ffmpeg_opt.c:96
int nb_program
Definition: ffmpeg.h:228
int last_dropped
Definition: ffmpeg.h:471
FilterGraph ** filtergraphs
Definition: ffmpeg.c:157
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:372
int64_t input_ts_offset
Definition: ffmpeg.h:402
int do_hex_dump
Definition: ffmpeg_opt.c:97
int nb_filter_scripts
Definition: ffmpeg.h:206
const char * name
Definition: ffmpeg.h:68
uint64_t packets_written
Definition: ffmpeg.h:534
AVCodec.
Definition: avcodec.h:3441
int nb_dts_buffer
Definition: ffmpeg.h:388
SpecifierOpt * filters
Definition: ffmpeg.h:203
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3909
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:559
int index
Definition: ffmpeg.h:283
uint64_t data_size
Definition: ffmpeg.h:532
SpecifierOpt * qscale
Definition: ffmpeg.h:177
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:463
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:114
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:191
struct FilterGraph * graph
Definition: ffmpeg.h:238
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:187
int encoding_needed
Definition: ffmpeg.h:447
Format I/O context.
Definition: avformat.h:1351
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:636
uint64_t samples_decoded
Definition: ffmpeg.h:385
struct InputStream * ist
Definition: ffmpeg.h:237
enum HWAccelID id
Definition: ffmpeg.h:70
uint64_t frames_decoded
Definition: ffmpeg.h:384
int header_written
Definition: ffmpeg.h:564
AVFilterGraph * graph
Definition: ffmpeg.h:286
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:499
int user_set_discard
Definition: ffmpeg.h:299
int copy_initial_nonkeyframes
Definition: ffmpeg.h:524
int64_t * dts_buffer
Definition: ffmpeg.h:387
uint8_t
AVDictionary * sws_dict
Definition: ffmpeg.h:508
int nb_time_bases
Definition: ffmpeg.h:230
int stdin_interaction
Definition: ffmpeg_opt.c:107
FILE * logfile
Definition: ffmpeg.h:500
AVDictionary * opts
Definition: ffmpeg.h:556
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:170
int shortest
Definition: ffmpeg.h:562
int nb_output_streams
Definition: ffmpeg.c:153
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:409
int sync_file_index
Definition: ffmpeg.h:85
enum AVMediaType type
Definition: ffmpeg.h:240
AVDictionary * resample_opts
Definition: ffmpeg.h:510
int seek_timestamp
Definition: ffmpeg.h:101
void reset_options(OptionsContext *o, int is_input)
AVFilterContext * filter
Definition: ffmpeg.h:260
int * formats
Definition: ffmpeg.h:277
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:171
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:305
int top_field_first
Definition: ffmpeg.h:334
int file_index
Definition: ffmpeg.h:296
struct InputStream::sub2video sub2video
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:319
int wrap_correction_done
Definition: ffmpeg.h:317
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:111
SpecifierOpt * disposition
Definition: ffmpeg.h:225
int64_t next_dts
Definition: ffmpeg.h:312
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:231
uint64_t channel_layout
Definition: ffmpeg.h:274
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:349
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:194
AVRational sample_aspect_ratio
Definition: ffmpeg.h:248
int rate_emu
Definition: ffmpeg.h:412
int nb_discard
Definition: ffmpeg.h:224
int sample_rate
Definition: ffmpeg.h:250
void check_filter_outputs(void)
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:374
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3248
AVFilterContext * filter
Definition: ffmpeg.h:236
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:371
int nb_filters
Definition: ffmpeg.h:204
int64_t start_time
Definition: ffmpeg.h:99
int64_t start
Definition: ffmpeg.h:309
int loop
Definition: ffmpeg.h:398
uint64_t nb_packets
Definition: ffmpeg.h:382
int seek_timestamp
Definition: ffmpeg.h:407
int64_t last_mux_dts
Definition: ffmpeg.h:457
int video_sync_method
Definition: ffmpeg_opt.c:92
int format
Definition: ffmpeg.h:245
char * sdp_filename
Definition: ffmpeg_opt.c:84
SpecifierOpt * apad
Definition: ffmpeg.h:221
int last_nb0_frames[3]
Definition: ffmpeg.h:472
int dr1
Definition: ffmpeg.h:354
int nb_hwaccel_devices
Definition: ffmpeg.h:131
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:140
int nb_disposition
Definition: ffmpeg.h:226
const char * arg
Definition: jacosubdec.c:66
SpecifierOpt * codec_tags
Definition: ffmpeg.h:173
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:185
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:69
int video_disable
Definition: ffmpeg.h:158
int eof
Definition: ffmpeg.h:256
int nb_input_files
Definition: ffmpeg.c:150
int force_fps
Definition: ffmpeg.h:479
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:414
int nb_codec_names
Definition: ffmpeg.h:105
int qp_hist
Definition: ffmpeg_opt.c:106
StreamMap * stream_maps
Definition: ffmpeg.h:138
float frame_drop_threshold
Definition: ffmpeg_opt.c:93
uint64_t limit_filesize
Definition: ffmpeg.h:152
const char * format
Definition: ffmpeg.h:102
int64_t error[4]
Definition: ffmpeg.h:551
int nb_passlogfiles
Definition: ffmpeg.h:216
int filter_nbthreads
Definition: ffmpeg_opt.c:110
int nb_force_fps
Definition: ffmpeg.h:182
OutputFilter * filter
Definition: ffmpeg.h:502
AVRational frame_aspect_ratio
Definition: ffmpeg.h:484
int nb_sample_fmts
Definition: ffmpeg.h:176
int file_index
Definition: ffmpeg.h:83
int nb_audio_channel_maps
Definition: ffmpeg.h:141
AVRational mux_timebase
Definition: ffmpeg.h:459
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:205
int nb_attachments
Definition: ffmpeg.h:146
char * linklabel
Definition: ffmpeg.h:87
int nb_hwaccel_output_formats
Definition: ffmpeg.h:133
int nb_ts_scale
Definition: ffmpeg.h:125
int is_cfr
Definition: ffmpeg.h:478
SpecifierOpt * audio_channels
Definition: ffmpeg.h:106
uint64_t * channel_layouts
Definition: ffmpeg.h:278
int saw_first_ts
Definition: ffmpeg.h:331
int nb_audio_sample_rate
Definition: ffmpeg.h:109
int abort_on_flags
Definition: ffmpeg_opt.c:104
SpecifierOpt * time_bases
Definition: ffmpeg.h:229
int metadata_chapters_manual
Definition: ffmpeg.h:144
struct OutputStream * ost
Definition: ffmpeg.h:261
int accurate_seek
Definition: ffmpeg.h:121
char * apad
Definition: ffmpeg.h:511
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
SpecifierOpt * pass
Definition: ffmpeg.h:213
int64_t nb_samples
Definition: ffmpeg.h:328
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:108
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:298
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:493
int64_t duration
Definition: ffmpeg.h:399
void opt_output_file(void *optctx, const char *filename)
int width
Definition: ffmpeg.h:247
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:126
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:645
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:211
int nb_codec_tags
Definition: ffmpeg.h:174
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:71
int64_t last_ts
Definition: ffmpeg.h:405
SpecifierOpt * metadata_map
Definition: ffmpeg.h:195
#define s(width, name)
Definition: cbs_vp9.c:257
int do_pkt_dump
Definition: ffmpeg_opt.c:98
int64_t max_frames
Definition: ffmpeg.h:468
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:373
int audio_channels_mapped
Definition: ffmpeg.h:497
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:201
int height
Definition: ffmpeg.h:270
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:183
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:112
int stream_idx
Definition: ffmpeg.h:91
int sample_rate
Definition: ffmpeg.h:273
int nb_hwaccels
Definition: ffmpeg.h:129
int inputs_done
Definition: ffmpeg.h:521
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:342
int audio_volume
Definition: ffmpeg_opt.c:90
Stream structure.
Definition: avformat.h:874
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:1003
InputFilter ** filters
Definition: ffmpeg.h:358
int fix_sub_duration
Definition: ffmpeg.h:339
int64_t recording_time
Definition: ffmpeg.h:408
SpecifierOpt * hwaccels
Definition: ffmpeg.h:128
Definition: ffmpeg.h:67
SpecifierOpt * frame_rates
Definition: ffmpeg.h:110
AVStream * st
Definition: ffmpeg.h:297
int nb_presets
Definition: ffmpeg.h:198
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:365
int ost_index
Definition: ffmpeg.h:557
struct InputStream * sync_ist
Definition: ffmpeg.h:451
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:330
int64_t recording_time
Definition: ffmpeg.h:150
int unavailable
Definition: ffmpeg.h:513
void term_exit(void)
Definition: ffmpeg.c:328
int chapters_input_file
Definition: ffmpeg.h:148
int64_t stop_time
Definition: ffmpeg.h:151
float max_error_rate
Definition: ffmpeg_opt.c:109
uint64_t frames_encoded
Definition: ffmpeg.h:536
int nb_copy_prior_start
Definition: ffmpeg.h:202
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:545
OutputStream ** output_streams
Definition: ffmpeg.c:152
int ist_index
Definition: ffmpeg.h:397
const char * graph_desc
Definition: ffmpeg.h:284
int guess_layout_max
Definition: ffmpeg.h:335
int64_t start_time
Definition: ffmpeg.h:406
main external API structure.
Definition: avcodec.h:1540
InputFile ** input_files
Definition: ffmpeg.c:149
int rate_emu
Definition: ffmpeg.h:120
int * sample_rates
Definition: ffmpeg.h:279
int metadata_streams_manual
Definition: ffmpeg.h:143
const char * attachment_filename
Definition: ffmpeg.h:523
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:401
AVCodecContext * enc_ctx
Definition: ffmpeg.h:465
int audio_disable
Definition: ffmpeg.h:159
int64_t input_ts_offset
Definition: ffmpeg.h:118
int nb_filtergraphs
Definition: ffmpeg.c:158
AVFrame * decoded_frame
Definition: ffmpeg.h:306
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:254
int nb_bitstream_filters
Definition: ffmpeg.h:172
SpecifierOpt * top_field_first
Definition: ffmpeg.h:193
int channels
Definition: ffmpeg.h:251
int * audio_channels_map
Definition: ffmpeg.h:496
int configure_filtergraph(FilterGraph *fg)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:443
int metadata_global_manual
Definition: ffmpeg.h:142
double rotate_override_value
Definition: ffmpeg.h:482
int64_t sync_opts
Definition: ffmpeg.h:452
char * vstats_filename
Definition: ffmpeg_opt.c:83
AVCodecContext * dec_ctx
Definition: ffmpeg.h:304
SpecifierOpt * force_fps
Definition: ffmpeg.h:181
char * disposition
Definition: ffmpeg.h:526
int filtergraph_is_simple(FilterGraph *fg)
struct InputStream::@24 prev_sub
AVMediaType
Definition: avutil.h:199
int nb_fix_sub_duration
Definition: ffmpeg.h:210
int nb_inter_matrices
Definition: ffmpeg.h:190
int nb_streams_warn
Definition: ffmpeg.h:411
AVDictionary * decoder_opts
Definition: ffmpeg.h:332
int shortest
Definition: ffmpeg.h:155
int autorotate
Definition: ffmpeg.h:337
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:108
int64_t ts_offset
Definition: ffmpeg.h:404
int nb_qscale
Definition: ffmpeg.h:178
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:505
int nb_enc_time_bases
Definition: ffmpeg.h:232
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:130
int nb_input_streams
Definition: ffmpeg.c:148
float audio_drift_threshold
Definition: ffmpeg_opt.c:86
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:367
AVFrame * filtered_frame
Definition: ffmpeg.h:469
int nb_autorotate
Definition: ffmpeg.h:135
int nb_audio_channels
Definition: ffmpeg.h:107
int source_index
Definition: ffmpeg.h:445
InputStream ** input_streams
Definition: ffmpeg.c:147
int copy_prior_start
Definition: ffmpeg.h:525
SpecifierOpt * metadata
Definition: ffmpeg.h:167
AVIOContext * progress_avio
Definition: ffmpeg.c:143
#define flags(name, subs,...)
Definition: cbs_av1.c:584
int nb_filters
Definition: ffmpeg.h:359
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:492
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:313
int forced_kf_count
Definition: ffmpeg.h:489
int nb_intra_matrices
Definition: ffmpeg.h:188
OSTFinished finished
Definition: ffmpeg.h:512
char * forced_keyframes
Definition: ffmpeg.h:491
int nb_frame_rates
Definition: ffmpeg.h:111
uint64_t data_size
Definition: ffmpeg.h:380
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:481
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:315
static AVStream * ost
Main libavformat public API header.
int
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:217
int reconfiguration
Definition: ffmpeg.h:287
struct FilterGraph * graph
Definition: ffmpeg.h:262
uint64_t limit_filesize
Definition: ffmpeg.h:560
const OptionDef options[]
Definition: ffmpeg_opt.c:3324
SpecifierOpt * presets
Definition: ffmpeg.h:197
SpecifierOpt * program
Definition: ffmpeg.h:227
int reinit_filters
Definition: ffmpeg.h:361
int nb_frame_sizes
Definition: ffmpeg.h:113
AVCodecParameters * ref_par
Definition: ffmpeg.h:466
Utilties for rational number calculation.
OptionGroup * g
Definition: ffmpeg.h:96
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:189
enum AVHWDeviceType type
Definition: ffmpeg.h:76
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:114
AVStream * st
Definition: muxing.c:54
AVBufferRef * device_ref
Definition: ffmpeg.h:77
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:179
uint64_t samples_encoded
Definition: ffmpeg.h:537
const char ** attachments
Definition: ffmpeg.h:145
int nb_max_muxing_queue_size
Definition: ffmpeg.h:218
AVFrame * last_frame
Definition: ffmpeg.h:470
uint64_t channel_layout
Definition: ffmpeg.h:252
int copy_ts
Definition: ffmpeg_opt.c:99
AVFormatContext * ctx
Definition: ffmpeg.h:394
int pict_type
Definition: ffmpeg.h:548
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:80
int stream_index
Definition: ffmpeg.h:84
AVCodec * enc
Definition: ffmpeg.h:467
AVSubtitle subtitle
Definition: ffmpeg.h:343
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:71
int eof_reached
Definition: ffmpeg.h:395
int nb_metadata_map
Definition: ffmpeg.h:196
int forced_kf_index
Definition: ffmpeg.h:490
int nb_rc_overrides
Definition: ffmpeg.h:186
int do_deinterlace
Definition: ffmpeg_opt.c:94
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:209
Definition: ffmpeg.h:430
pixel format definitions
AVHWDeviceType
Definition: hwcontext.h:27
char * avfilter
Definition: ffmpeg.h:503
SpecifierOpt * autorotate
Definition: ffmpeg.h:134
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:472
uint8_t * name
Definition: ffmpeg.h:239
float dts_delta_threshold
Definition: ffmpeg_opt.c:87
void * hwaccel_ctx
Definition: ffmpeg.h:370
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2078
int top_field_first
Definition: ffmpeg.h:480
OutputFilter ** outputs
Definition: ffmpeg.h:291
SpecifierOpt * max_frames
Definition: ffmpeg.h:169
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:200
int disabled
Definition: ffmpeg.h:82
AVRational frame_rate
Definition: ffmpeg.h:271
AVFormatContext * ctx
Definition: ffmpeg.h:555
int nb_output_files
Definition: ffmpeg.c:155
int hw_device_init_from_string(const char *arg, HWDevice **dev)
Definition: ffmpeg_hw.c:92
SpecifierOpt * codec_names
Definition: ffmpeg.h:104
void show_usage(void)
Definition: ffmpeg_opt.c:3198
int thread_queue_size
Definition: ffmpeg.h:122
An instance of a filter.
Definition: avfilter.h:338
char * hwaccel_device
Definition: ffmpeg.h:366
AVDictionary * encoder_opts
Definition: ffmpeg.h:507
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:289
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:375
int sync_stream_index
Definition: ffmpeg.h:86
int format
Definition: ffmpeg.h:272
int copy_tb
Definition: ffmpeg_opt.c:101
int64_t min_pts
Definition: ffmpeg.h:321
int initialized
Definition: ffmpeg.h:519
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int discard
Definition: ffmpeg.h:298
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:364
int64_t first_pts
Definition: ffmpeg.h:455
int nb_inputs
Definition: ffmpeg.h:290
int index
Definition: ffmpeg.h:444
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
OSTFinished
Definition: ffmpeg.h:437
enum AVMediaType type
Definition: ffmpeg.h:267
int nb_reinit_filters
Definition: ffmpeg.h:208
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:242
int debug_ts
Definition: ffmpeg_opt.c:102
void sub2video_update(InputStream *ist, AVSubtitle *sub)
Definition: ffmpeg.c:240
int nb_guess_layout_max
Definition: ffmpeg.h:220
void term_init(void)
Definition: ffmpeg.c:387
int nb_frame_aspect_ratios
Definition: ffmpeg.h:184
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg.h:429
simple arithmetic expression evaluator
const char * name
Definition: opengl_enc.c:103
int subtitle_disable
Definition: ffmpeg.h:160