FFmpeg
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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 {
72 };
73 
74 typedef struct HWAccel {
75  const char *name;
77  enum HWAccelID id;
80 } HWAccel;
81 
82 typedef struct HWDevice {
83  char *name;
86 } HWDevice;
87 
88 /* select an input stream for an output stream */
89 typedef struct StreamMap {
90  int disabled; /* 1 is this mapping is disabled by a negative map */
95  char *linklabel; /* name of an output link, for mapping lavfi outputs */
96 } StreamMap;
97 
98 typedef struct {
99  int file_idx, stream_idx, channel_idx; // input
100  int ofile_idx, ostream_idx; // output
102 
103 typedef struct OptionsContext {
105 
106  /* input/output options */
107  int64_t start_time;
108  int64_t start_time_eof;
110  const char *format;
111 
124 
125  /* input options */
127  int loop;
128  int rate_emu;
131 
144 
145  /* output options */
148  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
149  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
153  const char **attachments;
155 
157 
158  int64_t recording_time;
159  int64_t stop_time;
160  uint64_t limit_filesize;
161  float mux_preload;
163  int shortest;
164  int bitexact;
165 
170 
171  /* indexed by output file stream index */
174 
222  int nb_pass;
230  int nb_apad;
242 
243 typedef struct InputFilter {
245  struct InputStream *ist;
248  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
249 
251 
252  // parameters configured for this input
253  int format;
254 
255  int width, height;
257 
259  int channels;
260  uint64_t channel_layout;
261 
263 
264  int eof;
265 } InputFilter;
266 
267 typedef struct OutputFilter {
269  struct OutputStream *ost;
272 
273  /* temporary storage until stream maps are processed */
276 
277  /* desired output stream properties */
278  int width, height;
280  int format;
282  uint64_t channel_layout;
283 
284  // those are only set if no format is specified and the encoder gives us multiple options
285  int *formats;
286  uint64_t *channel_layouts;
288 } OutputFilter;
289 
290 typedef struct FilterGraph {
291  int index;
292  const char *graph_desc;
293 
296 
301 } FilterGraph;
302 
303 typedef struct InputStream {
306  int discard; /* true if stream data should be discarded */
308  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
309 #define DECODING_FOR_OST 1
310 #define DECODING_FOR_FILTER 2
311 
315  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 dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
322 
323  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
324  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
326 
328 
329  int64_t min_pts; /* pts with the smallest value in a current stream */
330  int64_t max_pts; /* pts with the higher value in a current stream */
331 
332  // when forcing constant input framerate through -r,
333  // this contains the pts that will be given to the next decoded frame
334  int64_t cfr_next_pts;
335 
336  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
337 
338  double ts_scale;
341  AVRational framerate; /* framerate forced with -r */
344 
346 
348  struct { /* previous decoded subtitle and related variables */
350  int ret;
352  } prev_sub;
353 
354  struct sub2video {
355  int64_t last_pts;
356  int64_t end_pts;
357  AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
359  int w, h;
360  } sub2video;
361 
362  int dr1;
363 
364  /* decoded data from this stream goes into all those filters
365  * currently video and audio only */
368 
370 
371  /* hwaccel options */
375 
376  /* 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 */
416  int64_t recording_time;
417  int nb_streams; /* number of stream that ffmpeg is aware of; may be different
418  from ctx.nb_streams if new streams appear during av_read_frame() */
419  int nb_streams_warn; /* number of streams that the user was warned of */
420  int rate_emu;
422 
423 #if HAVE_PTHREADS
424  AVThreadMessageQueue *in_thread_queue;
425  pthread_t thread; /* thread reading from this file */
426  int non_blocking; /* reading packets from the thread should not block */
427  int joined; /* the thread has been joined */
428  int thread_queue_size; /* maximum number of queued packets */
429 #endif
430 } InputFile;
431 
439 };
440 
441 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
442 
443 extern const char *const forced_keyframes_const_names[];
444 
445 typedef enum {
448 } OSTFinished ;
449 
450 typedef struct OutputStream {
451  int file_index; /* file index */
452  int index; /* stream index in the output file */
453  int source_index; /* InputStream index */
454  AVStream *st; /* stream in the output file */
455  int encoding_needed; /* true if encoding needed for this stream */
457  /* input pts and corresponding output pts
458  for A/V sync */
459  struct InputStream *sync_ist; /* input stream to sync against */
460  int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
461  /* pts of the first frame encoded for this stream, used for limiting
462  * recording time */
463  int64_t first_pts;
464  /* dts of the last packet sent to the muxer */
465  int64_t last_mux_dts;
466  // the timebase of the packets sent to the muxer
469 
472 
474  AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
476  int64_t max_frames;
481 
482  void *hwaccel_ctx;
483 
484  /* video only */
486  int is_cfr;
491 
493 
494  /* forced key frames */
495  int64_t *forced_kf_pts;
501 
502  /* audio only */
503  int *audio_channels_map; /* list of the channels id to pick from the source stream */
504  int audio_channels_mapped; /* number of channels in audio_channels_map */
505 
507  FILE *logfile;
508 
510  char *avfilter;
511  char *filters; ///< filtergraph associated to the -filter option
512  char *filters_script; ///< filtergraph script associated to the -filter_script option
513 
518  char *apad;
519  OSTFinished finished; /* no more packets should be written for this stream */
520  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
522 
523  // init_output_stream() has been called for this stream
524  // The encoder and the bitstream filters have been initialized and the stream
525  // parameters are set in the AVStream.
527 
529 
530  const char *attachment_filename;
533  char *disposition;
534 
536 
539 
540  /* stats */
541  // combined size of all the packets written
542  uint64_t data_size;
543  // number of packets send to the muxer
544  uint64_t packets_written;
545  // number of frames/samples sent to the encoder
546  uint64_t frames_encoded;
547  uint64_t samples_encoded;
548 
549  /* packet quality factor */
550  int quality;
551 
553 
554  /* the packets are buffered here until the muxer is ready to be initialized */
556 
557  /* packet picture type */
559 
560  /* frame encode sum of squared error values */
561  int64_t error[4];
562 } OutputStream;
563 
564 typedef struct OutputFile {
567  int ost_index; /* index of the first stream in output_streams */
568  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
569  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
570  uint64_t limit_filesize; /* filesize limit expressed in bytes */
571 
572  int shortest;
573 
575 } OutputFile;
576 
577 extern InputStream **input_streams;
578 extern int nb_input_streams;
579 extern InputFile **input_files;
580 extern int nb_input_files;
581 
583 extern int nb_output_streams;
584 extern OutputFile **output_files;
585 extern int nb_output_files;
586 
587 extern FilterGraph **filtergraphs;
588 extern int nb_filtergraphs;
589 
590 extern char *vstats_filename;
591 extern char *sdp_filename;
592 
593 extern float audio_drift_threshold;
594 extern float dts_delta_threshold;
595 extern float dts_error_threshold;
596 
597 extern int audio_volume;
598 extern int audio_sync_method;
599 extern int video_sync_method;
600 extern float frame_drop_threshold;
601 extern int do_benchmark;
602 extern int do_benchmark_all;
603 extern int do_deinterlace;
604 extern int do_hex_dump;
605 extern int do_pkt_dump;
606 extern int copy_ts;
607 extern int start_at_zero;
608 extern int copy_tb;
609 extern int debug_ts;
610 extern int exit_on_error;
611 extern int abort_on_flags;
612 extern int print_stats;
613 extern int qp_hist;
614 extern int stdin_interaction;
615 extern int frame_bits_per_raw_sample;
616 extern AVIOContext *progress_avio;
617 extern float max_error_rate;
618 extern char *videotoolbox_pixfmt;
619 
620 extern int filter_nbthreads;
621 extern int filter_complex_nbthreads;
622 extern int vstats_version;
623 
624 extern const AVIOInterruptCB int_cb;
625 
626 extern const OptionDef options[];
627 extern const HWAccel hwaccels[];
628 extern AVBufferRef *hw_device_ctx;
629 #if CONFIG_QSV
630 extern char *qsv_device;
631 #endif
632 extern HWDevice *filter_hw_device;
633 
634 
635 void term_init(void);
636 void term_exit(void);
637 
638 void reset_options(OptionsContext *o, int is_input);
639 void show_usage(void);
640 
641 void opt_output_file(void *optctx, const char *filename);
642 
645 
647 
648 enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
649 void choose_sample_fmt(AVStream *st, AVCodec *codec);
650 
653 void check_filter_outputs(void);
658 
659 void sub2video_update(InputStream *ist, AVSubtitle *sub);
660 
662 
663 int ffmpeg_parse_options(int argc, char **argv);
664 
668 
669 HWDevice *hw_device_get_by_name(const char *name);
670 int hw_device_init_from_string(const char *arg, HWDevice **dev);
671 void hw_device_free_all(void);
672 
675 
677 
678 #endif /* FFTOOLS_FFMPEG_H */
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:324
int nb_bitstream_filters
Definition: ffmpeg.h:470
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:223
AVRational enc_timebase
Definition: ffmpeg.h:468
int nb_dump_attachment
Definition: ffmpeg.h:135
int got_output
Definition: ffmpeg.h:349
int nb_metadata
Definition: ffmpeg.h:176
int nb_streamid_map
Definition: ffmpeg.h:173
int frame_number
Definition: ffmpeg.h:456
int width
Definition: ffmpeg.h:278
Definition: ffmpeg.h:433
enum HWAccelID active_hwaccel_id
Definition: ffmpeg.h:377
int keep_pix_fmt
Definition: ffmpeg.h:535
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:161
float mux_preload
Definition: ffmpeg.h:161
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:568
HWAccelID
Definition: ffmpeg.h:61
Buffered I/O operations.
uint8_t * name
Definition: ffmpeg.h:271
int nb_outputs
Definition: ffmpeg.h:300
char * qsv_device
Definition: ffmpeg_qsv.c:31
AVDictionary * swr_opts
Definition: ffmpeg.h:516
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:521
AVRational frame_rate
Definition: ffmpeg.h:485
int64_t * forced_kf_pts
Definition: ffmpeg.h:495
int64_t start_time_eof
Definition: ffmpeg.h:108
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:384
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:511
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:140
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:104
int data_disable
Definition: ffmpeg.h:169
float mux_max_delay
Definition: ffmpeg.h:162
int exit_on_error
Definition: ffmpeg_opt.c:126
int64_t cfr_next_pts
Definition: ffmpeg.h:334
int accurate_seek
Definition: ffmpeg.h:421
OutputFile ** output_files
Definition: ffmpeg.c:151
int nb_forced_key_frames
Definition: ffmpeg.h:188
int * streamid_map
Definition: ffmpeg.h:172
Main libavfilter public API header.
int nb_stream_maps
Definition: ffmpeg.h:147
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:207
int ostream_idx
Definition: ffmpeg.h:100
int nb_chroma_intra_matrices
Definition: ffmpeg.h:200
AVRational framerate
Definition: ffmpeg.h:341
char * name
Definition: ffmpeg.h:83
void choose_sample_fmt(AVStream *st, AVCodec *codec)
Definition: ffmpeg_filter.c:92
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:215
SpecifierOpt * ts_scale
Definition: ffmpeg.h:132
int height
Definition: ffmpeg.h:255
AVCodecParserContext * parser
Definition: ffmpeg.h:537
int64_t max_pts
Definition: ffmpeg.h:330
AVFilterInOut * out_tmp
Definition: ffmpeg.h:274
int bitexact
Definition: ffmpeg.h:164
int decoding_needed
Definition: ffmpeg.h:308
int nb_canvas_sizes
Definition: ffmpeg.h:220
The bitstream filter state.
Definition: avcodec.h:5481
int rotate_overridden
Definition: ffmpeg.h:489
int max_muxing_queue_size
Definition: ffmpeg.h:552
const char * b
Definition: vf_curves.c:113
SpecifierOpt * discard
Definition: ffmpeg.h:231
int nb_frame_pix_fmts
Definition: ffmpeg.h:123
void * hwaccel_ctx
Definition: ffmpeg.h:482
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:183
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:227
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:217
int eagain
Definition: ffmpeg.h:404
Convenience header that includes libavutil's core.
forced_keyframes_const
Definition: ffmpeg.h:432
int quality
Definition: ffmpeg.h:550
int cuvid_init(AVCodecContext *s)
Definition: ffmpeg_cuvid.c:30
AVFrame * filter_frame
Definition: ffmpeg.h:315
int do_benchmark_all
Definition: ffmpeg_opt.c:119
int nb_program
Definition: ffmpeg.h:236
int last_dropped
Definition: ffmpeg.h:479
FilterGraph ** filtergraphs
Definition: ffmpeg.c:154
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:380
int64_t input_ts_offset
Definition: ffmpeg.h:410
int do_hex_dump
Definition: ffmpeg_opt.c:120
int nb_filter_scripts
Definition: ffmpeg.h:214
const char * name
Definition: ffmpeg.h:75
uint64_t packets_written
Definition: ffmpeg.h:544
AVCodec.
Definition: avcodec.h:3289
int nb_dts_buffer
Definition: ffmpeg.h:396
SpecifierOpt * filters
Definition: ffmpeg.h:211
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3728
int print_stats
Definition: ffmpeg_opt.c:128
float dts_error_threshold
Definition: ffmpeg_opt.c:111
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:569
int index
Definition: ffmpeg.h:291
uint64_t data_size
Definition: ffmpeg.h:542
SpecifierOpt * qscale
Definition: ffmpeg.h:185
AVBSFContext ** bsf_ctx
Definition: ffmpeg.h:471
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:122
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:199
struct FilterGraph * graph
Definition: ffmpeg.h:246
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:195
int encoding_needed
Definition: ffmpeg.h:455
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:393
struct InputStream * ist
Definition: ffmpeg.h:245
enum HWAccelID id
Definition: ffmpeg.h:77
uint64_t frames_decoded
Definition: ffmpeg.h:392
int header_written
Definition: ffmpeg.h:574
AVFilterGraph * graph
Definition: ffmpeg.h:294
Public dictionary API.
char * logfile_prefix
Definition: ffmpeg.h:506
int user_set_discard
Definition: ffmpeg.h:307
int copy_initial_nonkeyframes
Definition: ffmpeg.h:531
int64_t * dts_buffer
Definition: ffmpeg.h:395
uint8_t
AVDictionary * sws_dict
Definition: ffmpeg.h:515
int nb_time_bases
Definition: ffmpeg.h:238
int stdin_interaction
Definition: ffmpeg_opt.c:130
FILE * logfile
Definition: ffmpeg.h:507
AVDictionary * opts
Definition: ffmpeg.h:566
Definition: eval.c:157
int do_benchmark
Definition: ffmpeg_opt.c:118
int audio_sync_method
Definition: ffmpeg_opt.c:114
int nb_max_frames
Definition: ffmpeg.h:178
int shortest
Definition: ffmpeg.h:572
int nb_output_streams
Definition: ffmpeg.c:150
static AVFrame * frame
int nb_streams
Definition: ffmpeg.h:417
int sync_file_index
Definition: ffmpeg.h:93
enum AVMediaType type
Definition: ffmpeg.h:248
AVDictionary * resample_opts
Definition: ffmpeg.h:517
int seek_timestamp
Definition: ffmpeg.h:109
static int flags
Definition: log.c:57
void reset_options(OptionsContext *o, int is_input)
AVFilterContext * filter
Definition: ffmpeg.h:268
int * formats
Definition: ffmpeg.h:285
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:179
int init_complex_filtergraph(FilterGraph *fg)
AVCodec * dec
Definition: ffmpeg.h:313
int top_field_first
Definition: ffmpeg.h:342
int file_index
Definition: ffmpeg.h:304
const OptionDef options[]
Definition: ffserver.c:3948
struct InputStream::sub2video sub2video
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:327
int wrap_correction_done
Definition: ffmpeg.h:325
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:134
SpecifierOpt * disposition
Definition: ffmpeg.h:233
int64_t next_dts
Definition: ffmpeg.h:320
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:239
uint64_t channel_layout
Definition: ffmpeg.h:282
AVFifoBuffer * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:357
Callback for checking whether to abort blocking functions.
Definition: avio.h:58
libswresample public header
int nb_top_field_first
Definition: ffmpeg.h:202
AVRational sample_aspect_ratio
Definition: ffmpeg.h:256
int rate_emu
Definition: ffmpeg.h:420
int nb_discard
Definition: ffmpeg.h:232
int sample_rate
Definition: ffmpeg.h:258
void check_filter_outputs(void)
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:382
int ffmpeg_parse_options(int argc, char **argv)
Definition: ffmpeg_opt.c:3309
AVFilterContext * filter
Definition: ffmpeg.h:244
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:379
int nb_filters
Definition: ffmpeg.h:212
int64_t start_time
Definition: ffmpeg.h:107
int64_t start
Definition: ffmpeg.h:317
int loop
Definition: ffmpeg.h:406
uint64_t nb_packets
Definition: ffmpeg.h:390
int seek_timestamp
Definition: ffmpeg.h:415
int64_t last_mux_dts
Definition: ffmpeg.h:465
int video_sync_method
Definition: ffmpeg_opt.c:115
int format
Definition: ffmpeg.h:253
char * sdp_filename
Definition: ffmpeg_opt.c:107
SpecifierOpt * apad
Definition: ffmpeg.h:229
int last_nb0_frames[3]
Definition: ffmpeg.h:480
int dr1
Definition: ffmpeg.h:362
int nb_hwaccel_devices
Definition: ffmpeg.h:139
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:148
int nb_disposition
Definition: ffmpeg.h:234
const char * arg
Definition: jacosubdec.c:66
SpecifierOpt * codec_tags
Definition: ffmpeg.h:181
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:193
int(* init)(AVCodecContext *s)
Definition: ffmpeg.h:76
int video_disable
Definition: ffmpeg.h:166
int eof
Definition: ffmpeg.h:264
int nb_input_files
Definition: ffmpeg.c:147
int force_fps
Definition: ffmpeg.h:487
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:312
int nb_codec_names
Definition: ffmpeg.h:113
int qp_hist
Definition: ffmpeg_opt.c:129
StreamMap * stream_maps
Definition: ffmpeg.h:146
float frame_drop_threshold
Definition: ffmpeg_opt.c:116
uint64_t limit_filesize
Definition: ffmpeg.h:160
const char * format
Definition: ffmpeg.h:110
int64_t error[4]
Definition: ffmpeg.h:561
int nb_passlogfiles
Definition: ffmpeg.h:224
int filter_nbthreads
Definition: ffmpeg_opt.c:133
int nb_force_fps
Definition: ffmpeg.h:190
OutputFilter * filter
Definition: ffmpeg.h:509
AVRational frame_aspect_ratio
Definition: ffmpeg.h:492
int nb_sample_fmts
Definition: ffmpeg.h:184
int file_index
Definition: ffmpeg.h:91
int nb_audio_channel_maps
Definition: ffmpeg.h:149
AVRational mux_timebase
Definition: ffmpeg.h:467
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:213
int nb_attachments
Definition: ffmpeg.h:154
AVCodecContext * parser_avctx
Definition: ffmpeg.h:538
char * linklabel
Definition: ffmpeg.h:95
int nb_hwaccel_output_formats
Definition: ffmpeg.h:141
int nb_ts_scale
Definition: ffmpeg.h:133
int is_cfr
Definition: ffmpeg.h:486
SpecifierOpt * audio_channels
Definition: ffmpeg.h:114
uint64_t * channel_layouts
Definition: ffmpeg.h:286
int saw_first_ts
Definition: ffmpeg.h:339
int nb_audio_sample_rate
Definition: ffmpeg.h:117
int abort_on_flags
Definition: ffmpeg_opt.c:127
SpecifierOpt * time_bases
Definition: ffmpeg.h:237
int metadata_chapters_manual
Definition: ffmpeg.h:152
struct OutputStream * ost
Definition: ffmpeg.h:269
int accurate_seek
Definition: ffmpeg.h:129
char * apad
Definition: ffmpeg.h:518
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
SpecifierOpt * pass
Definition: ffmpeg.h:221
int64_t nb_samples
Definition: ffmpeg.h:336
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:116
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:255
double forced_keyframes_expr_const_values[FKF_NB]
Definition: ffmpeg.h:500
enum AVHWDeviceType device_type
Definition: ffmpeg.h:79
int64_t duration
Definition: ffmpeg.h:407
void opt_output_file(void *optctx, const char *filename)
int width
Definition: ffmpeg.h:255
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:134
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:641
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:219
int nb_codec_tags
Definition: ffmpeg.h:182
int qsv_init(AVCodecContext *s)
Definition: ffmpeg_qsv.c:71
int64_t last_ts
Definition: ffmpeg.h:413
SpecifierOpt * metadata_map
Definition: ffmpeg.h:203
int do_pkt_dump
Definition: ffmpeg_opt.c:121
int64_t max_frames
Definition: ffmpeg.h:476
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:381
int audio_channels_mapped
Definition: ffmpeg.h:504
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:209
int height
Definition: ffmpeg.h:278
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:191
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:120
int stream_idx
Definition: ffmpeg.h:99
int sample_rate
Definition: ffmpeg.h:281
int nb_hwaccels
Definition: ffmpeg.h:137
int inputs_done
Definition: ffmpeg.h:528
int vstats_version
Definition: ffmpeg_opt.c:135
HWDevice * hw_device_get_by_name(const char *name)
Definition: ffmpeg_hw.c:42
int start_at_zero
Definition: ffmpeg_opt.c:123
int ret
Definition: ffmpeg.h:350
int audio_volume
Definition: ffmpeg_opt.c:113
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:366
int fix_sub_duration
Definition: ffmpeg.h:347
int64_t recording_time
Definition: ffmpeg.h:416
SpecifierOpt * hwaccels
Definition: ffmpeg.h:136
Definition: ffmpeg.h:74
SpecifierOpt * frame_rates
Definition: ffmpeg.h:118
AVStream * st
Definition: ffmpeg.h:305
int nb_presets
Definition: ffmpeg.h:206
int ost_index
Definition: ffmpeg.h:567
struct InputStream * sync_ist
Definition: ffmpeg.h:459
Libavcodec external API header.
double ts_scale
Definition: ffmpeg.h:338
int64_t recording_time
Definition: ffmpeg.h:158
int unavailable
Definition: ffmpeg.h:520
void term_exit(void)
Definition: ffmpeg.c:324
int chapters_input_file
Definition: ffmpeg.h:156
int64_t stop_time
Definition: ffmpeg.h:159
float max_error_rate
Definition: ffmpeg_opt.c:132
uint64_t frames_encoded
Definition: ffmpeg.h:546
int nb_copy_prior_start
Definition: ffmpeg.h:210
AVFifoBuffer * muxing_queue
Definition: ffmpeg.h:555
OutputStream ** output_streams
Definition: ffmpeg.c:149
int ist_index
Definition: ffmpeg.h:405
const char * graph_desc
Definition: ffmpeg.h:292
int guess_layout_max
Definition: ffmpeg.h:343
int64_t start_time
Definition: ffmpeg.h:414
struct InputStream::@38 prev_sub
main external API structure.
Definition: avcodec.h:1481
InputFile ** input_files
Definition: ffmpeg.c:146
int rate_emu
Definition: ffmpeg.h:128
int * sample_rates
Definition: ffmpeg.h:287
int metadata_streams_manual
Definition: ffmpeg.h:151
const char * attachment_filename
Definition: ffmpeg.h:530
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
a very simple circular buffer FIFO implementation
AVRational time_base
Definition: ffmpeg.h:409
AVCodecContext * enc_ctx
Definition: ffmpeg.h:473
int audio_disable
Definition: ffmpeg.h:167
int64_t input_ts_offset
Definition: ffmpeg.h:126
int nb_filtergraphs
Definition: ffmpeg.c:155
AVFrame * decoded_frame
Definition: ffmpeg.h:314
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:262
int nb_bitstream_filters
Definition: ffmpeg.h:180
SpecifierOpt * top_field_first
Definition: ffmpeg.h:201
int channels
Definition: ffmpeg.h:259
int * audio_channels_map
Definition: ffmpeg.h:503
int configure_filtergraph(FilterGraph *fg)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int file_index
Definition: ffmpeg.h:451
int metadata_global_manual
Definition: ffmpeg.h:150
double rotate_override_value
Definition: ffmpeg.h:490
int64_t sync_opts
Definition: ffmpeg.h:460
char * vstats_filename
Definition: ffmpeg_opt.c:106
AVCodecContext * dec_ctx
Definition: ffmpeg.h:312
SpecifierOpt * force_fps
Definition: ffmpeg.h:189
char * disposition
Definition: ffmpeg.h:533
int filtergraph_is_simple(FilterGraph *fg)
AVMediaType
Definition: avutil.h:199
int nb_fix_sub_duration
Definition: ffmpeg.h:218
int nb_inter_matrices
Definition: ffmpeg.h:198
int nb_streams_warn
Definition: ffmpeg.h:419
AVDictionary * decoder_opts
Definition: ffmpeg.h:340
int shortest
Definition: ffmpeg.h:163
int autorotate
Definition: ffmpeg.h:345
int frame_bits_per_raw_sample
Definition: ffmpeg_opt.c:131
int64_t ts_offset
Definition: ffmpeg.h:412
int nb_qscale
Definition: ffmpeg.h:186
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:512
int nb_enc_time_bases
Definition: ffmpeg.h:240
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:138
int nb_input_streams
Definition: ffmpeg.c:145
float audio_drift_threshold
Definition: ffmpeg_opt.c:109
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:374
AVFrame * filtered_frame
Definition: ffmpeg.h:477
int nb_autorotate
Definition: ffmpeg.h:143
int nb_audio_channels
Definition: ffmpeg.h:115
int source_index
Definition: ffmpeg.h:453
InputStream ** input_streams
Definition: ffmpeg.c:144
int copy_prior_start
Definition: ffmpeg.h:532
SpecifierOpt * metadata
Definition: ffmpeg.h:175
AVIOContext * progress_avio
Definition: ffmpeg.c:140
int nb_filters
Definition: ffmpeg.h:367
AVExpr * forced_keyframes_pexpr
Definition: ffmpeg.h:499
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:321
int forced_kf_count
Definition: ffmpeg.h:496
int nb_intra_matrices
Definition: ffmpeg.h:196
OSTFinished finished
Definition: ffmpeg.h:519
char * forced_keyframes
Definition: ffmpeg.h:498
int nb_frame_rates
Definition: ffmpeg.h:119
uint64_t data_size
Definition: ffmpeg.h:388
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:323
Main libavformat public API header.
int
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:225
int reconfiguration
Definition: ffmpeg.h:295
struct FilterGraph * graph
Definition: ffmpeg.h:270
uint64_t limit_filesize
Definition: ffmpeg.h:570
SpecifierOpt * presets
Definition: ffmpeg.h:205
SpecifierOpt * program
Definition: ffmpeg.h:235
int reinit_filters
Definition: ffmpeg.h:369
int nb_frame_sizes
Definition: ffmpeg.h:121
AVCodecParameters * ref_par
Definition: ffmpeg.h:474
Utilties for rational number calculation.
OptionGroup * g
Definition: ffmpeg.h:104
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:197
enum AVHWDeviceType type
Definition: ffmpeg.h:84
const char *const forced_keyframes_const_names[]
Definition: ffmpeg.c:117
AVStream * st
Definition: muxing.c:54
AVBufferRef * device_ref
Definition: ffmpeg.h:85
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:187
uint64_t samples_encoded
Definition: ffmpeg.h:547
const char ** attachments
Definition: ffmpeg.h:153
int nb_max_muxing_queue_size
Definition: ffmpeg.h:226
AVFrame * last_frame
Definition: ffmpeg.h:478
uint64_t channel_layout
Definition: ffmpeg.h:260
int copy_ts
Definition: ffmpeg_opt.c:122
AVFormatContext * ctx
Definition: ffmpeg.h:402
int pict_type
Definition: ffmpeg.h:558
AVBufferRef * hw_device_ctx
Definition: ffmpeg_opt.c:103
int stream_index
Definition: ffmpeg.h:92
AVCodec * enc
Definition: ffmpeg.h:475
AVSubtitle subtitle
Definition: ffmpeg.h:351
enum AVPixelFormat pix_fmt
Definition: ffmpeg.h:78
int eof_reached
Definition: ffmpeg.h:403
int nb_metadata_map
Definition: ffmpeg.h:204
int forced_kf_index
Definition: ffmpeg.h:497
int nb_rc_overrides
Definition: ffmpeg.h:194
int do_deinterlace
Definition: ffmpeg_opt.c:117
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:217
Definition: ffmpeg.h:438
pixel format definitions
AVHWDeviceType
Definition: hwcontext.h:27
char * avfilter
Definition: ffmpeg.h:510
SpecifierOpt * autorotate
Definition: ffmpeg.h:142
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:378
uint8_t * name
Definition: ffmpeg.h:247
float dts_delta_threshold
Definition: ffmpeg_opt.c:110
void * hwaccel_ctx
Definition: ffmpeg.h:378
int guess_input_channel_layout(InputStream *ist)
Definition: ffmpeg.c:2078
int top_field_first
Definition: ffmpeg.h:488
OutputFilter ** outputs
Definition: ffmpeg.h:299
SpecifierOpt * max_frames
Definition: ffmpeg.h:177
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:208
int disabled
Definition: ffmpeg.h:90
AVRational frame_rate
Definition: ffmpeg.h:279
AVFormatContext * ctx
Definition: ffmpeg.h:565
int nb_output_files
Definition: ffmpeg.c:152
int hw_device_init_from_string(const char *arg, HWDevice **dev)
Definition: ffmpeg_hw.c:67
SpecifierOpt * codec_names
Definition: ffmpeg.h:112
void show_usage(void)
Definition: ffmpeg_opt.c:3259
int thread_queue_size
Definition: ffmpeg.h:130
An instance of a filter.
Definition: avfilter.h:338
char * hwaccel_device
Definition: ffmpeg.h:373
AVDictionary * encoder_opts
Definition: ffmpeg.h:514
FILE * out
Definition: movenc.c:54
InputFilter ** inputs
Definition: ffmpeg.h:297
char * videotoolbox_pixfmt
enum AVPixelFormat hwaccel_retrieved_pix_fmt
Definition: ffmpeg.h:383
int sync_stream_index
Definition: ffmpeg.h:94
int format
Definition: ffmpeg.h:280
int copy_tb
Definition: ffmpeg_opt.c:124
int64_t min_pts
Definition: ffmpeg.h:329
int initialized
Definition: ffmpeg.h:526
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
int discard
Definition: ffmpeg.h:306
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:372
int64_t first_pts
Definition: ffmpeg.h:463
int nb_inputs
Definition: ffmpeg.h:298
int index
Definition: ffmpeg.h:452
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
OSTFinished
Definition: ffmpeg.h:445
enum AVMediaType type
Definition: ffmpeg.h:275
int nb_reinit_filters
Definition: ffmpeg.h:216
AVFifoBuffer * frame_queue
Definition: ffmpeg.h:250
int debug_ts
Definition: ffmpeg_opt.c:125
void sub2video_update(InputStream *ist, AVSubtitle *sub)
Definition: ffmpeg.c:237
int nb_guess_layout_max
Definition: ffmpeg.h:228
void term_init(void)
Definition: ffmpeg.c:383
int nb_frame_aspect_ratios
Definition: ffmpeg.h:192
const HWAccel hwaccels[]
Definition: ffmpeg_opt.c:68
int videotoolbox_init(AVCodecContext *s)
Definition: ffmpeg.h:437
simple arithmetic expression evaluator
const char * name
Definition: opengl_enc.c:103
int subtitle_disable
Definition: ffmpeg.h:168