FFmpeg
ffmpeg.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef FFTOOLS_FFMPEG_H
20 #define FFTOOLS_FFMPEG_H
21 
22 #include "config.h"
23 
24 #include <stdatomic.h>
25 #include <stdint.h>
26 #include <stdio.h>
27 #include <signal.h>
28 
29 #include "cmdutils.h"
30 #include "sync_queue.h"
31 
32 #include "libavformat/avformat.h"
33 #include "libavformat/avio.h"
34 
35 #include "libavcodec/avcodec.h"
36 #include "libavcodec/bsf.h"
37 
38 #include "libavfilter/avfilter.h"
39 
40 #include "libavutil/avutil.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/eval.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/hwcontext.h"
45 #include "libavutil/pixfmt.h"
46 #include "libavutil/rational.h"
47 #include "libavutil/thread.h"
49 
51 
52 // deprecated features
53 #define FFMPEG_OPT_PSNR 1
54 #define FFMPEG_OPT_MAP_CHANNEL 1
55 #define FFMPEG_OPT_MAP_SYNC 1
56 #define FFMPEG_ROTATION_METADATA 1
57 
59  VSYNC_AUTO = -1,
65 };
66 
67 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
68 
69 enum HWAccelID {
73 };
74 
75 typedef struct HWDevice {
76  const char *name;
79 } HWDevice;
80 
81 /* select an input stream for an output stream */
82 typedef struct StreamMap {
83  int disabled; /* 1 is this mapping is disabled by a negative map */
86  char *linklabel; /* name of an output link, for mapping lavfi outputs */
87 } StreamMap;
88 
89 #if FFMPEG_OPT_MAP_CHANNEL
90 typedef struct {
91  int file_idx, stream_idx, channel_idx; // input
92  int ofile_idx, ostream_idx; // output
94 #endif
95 
96 typedef struct OptionsContext {
98 
99  /* input/output options */
100  int64_t start_time;
101  int64_t start_time_eof;
103  const char *format;
104 
121 
122  /* input options */
124  int loop;
125  int rate_emu;
126  float readrate;
131 
144 
145  /* output options */
148 #if FFMPEG_OPT_MAP_CHANNEL
149  AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
150  int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
151 #endif
152  const char **attachments;
154 
156 
157  int64_t recording_time;
158  int64_t stop_time;
159  int64_t limit_filesize;
160  float mux_preload;
163  int shortest;
164  int bitexact;
165 
170 
171  /* indexed by output file stream index */
174 
230  int nb_pass;
240  int nb_apad;
264 
265 typedef struct InputFilter {
267  struct InputStream *ist;
269  uint8_t *name;
270  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
271 
273 
274  // parameters configured for this input
275  int format;
276 
277  int width, height;
279 
282 
285 
286  int eof;
287 } InputFilter;
288 
289 typedef struct OutputFilter {
291  struct OutputStream *ost;
293  uint8_t *name;
294 
295  /* temporary storage until stream maps are processed */
298 
299  /* desired output stream properties */
300  int width, height;
302  int format;
305 
306  // those are only set if no format is specified and the encoder gives us multiple options
307  // They point directly to the relevant lists of the encoder.
308  const int *formats;
310  const int *sample_rates;
311 } OutputFilter;
312 
313 typedef struct FilterGraph {
314  int index;
315  const char *graph_desc;
316 
319  // true when the filtergraph contains only meta filters
320  // that do not modify the frame data
321  int is_meta;
322 
327 } FilterGraph;
328 
329 typedef struct InputStream {
332  int discard; /* true if stream data should be discarded */
334  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
335 #define DECODING_FOR_OST 1
336 #define DECODING_FOR_FILTER 2
337  int processing_needed; /* non zero if the packets must be processed */
338 
339  /**
340  * Codec parameters - to be used by the decoding/streamcopy code.
341  * st->codecpar should not be accessed, because it may be modified
342  * concurrently by the demuxing thread.
343  */
346  const AVCodec *dec;
349 
351 
352  int64_t prev_pkt_pts;
353  int64_t start; /* time when read started */
354  /* predicted dts of the next packet read for this stream or (when there are
355  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
356  int64_t next_dts;
357  int64_t first_dts; ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
358  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
359 
360  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
361  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
363 
364  // the value of AVCodecParserContext.repeat_pict from the AVStream parser
365  // for the last packet returned from ifile_get_packet()
366  // -1 if unknown
367  // FIXME: this is a hack, the avstream parser should not be used
369 
371 
372  int64_t min_pts; /* pts with the smallest value in a current stream */
373  int64_t max_pts; /* pts with the higher value in a current stream */
374 
375  // when forcing constant input framerate through -r,
376  // this contains the pts that will be given to the next decoded frame
377  int64_t cfr_next_pts;
378 
379  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
380 
381  double ts_scale;
384  AVRational framerate; /* framerate forced with -r */
387 
389 
391  struct { /* previous decoded subtitle and related variables */
393  int ret;
395  } prev_sub;
396 
397  struct sub2video {
398  int64_t last_pts;
399  int64_t end_pts;
400  AVFifo *sub_queue; ///< queue of AVSubtitle* before filter init
402  int w, h;
403  unsigned int initialize; ///< marks if sub2video_update should force an initialization
404  } sub2video;
405 
406  /* decoded data from this stream goes into all those filters
407  * currently video and audio only */
410 
412 
413  /* hwaccel options */
418 
421 
422  /* stats */
423  // combined size of all the packets read
424  uint64_t data_size;
425  /* number of packets successfully read for this stream */
426  uint64_t nb_packets;
427  // number of frames/samples retrieved from the decoder
428  uint64_t frames_decoded;
429  uint64_t samples_decoded;
430 
431  int64_t *dts_buffer;
433 
434  int got_output;
435 } InputStream;
436 
437 typedef struct LastFrameDuration {
439  int64_t duration;
441 
442 typedef struct InputFile {
443  int index;
444 
446  int eof_reached; /* true if eof reached */
447  int eagain; /* true if last read attempt returned EAGAIN */
450  /**
451  * Effective format start time based on enabled streams.
452  */
454  int64_t ts_offset;
455  /**
456  * Extra timestamp offset added by discontinuity handling.
457  */
459  int64_t last_ts;
460  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
461  int64_t recording_time;
462 
463  /* streams that ffmpeg is aware of;
464  * there may be extra streams in ctx that are not mapped to an InputStream
465  * if new streams appear dynamically during demuxing */
468 
469  int rate_emu;
470  float readrate;
472 
473  /* when looping the input file, this queue is used by decoders to report
474  * the last frame duration back to the demuxer thread */
477 } InputFile;
478 
486 };
487 
488 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
489 #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)
490 
506 };
507 
508 typedef struct EncStatsComponent {
510 
511  uint8_t *str;
512  size_t str_len;
514 
515 typedef struct EncStats {
518 
520 } EncStats;
521 
522 extern const char *const forced_keyframes_const_names[];
523 
524 typedef enum {
527 } OSTFinished ;
528 
529 enum {
532 };
533 
534 typedef struct KeyframeForceCtx {
535  int type;
536 
537  int64_t ref_pts;
538 
539  // timestamps of the forced keyframes, in AV_TIME_BASE_Q
540  int64_t *pts;
541  int nb_pts;
542  int index;
543 
546 
549 
550 typedef struct OutputStream {
551  const AVClass *class;
552 
553  int file_index; /* file index */
554  int index; /* stream index in the output file */
555 
556  /* input stream that is the source for this output stream;
557  * may be NULL for streams with no well-defined source, e.g.
558  * attachments or outputs from complex filtergraphs */
560 
561  AVStream *st; /* stream in the output file */
562  /* number of frames emitted by the video-encoding sync code */
564  /* predicted pts of the next frame to be encoded
565  * audio/video encoding only */
566  int64_t next_pts;
567  /* dts of the last packet sent to the muxing queue, in AV_TIME_BASE_Q */
568  int64_t last_mux_dts;
569  /* pts of the last frame received from the filters, in AV_TIME_BASE_Q */
571 
572  // timestamp from which the streamcopied streams should start,
573  // in AV_TIME_BASE_Q;
574  // everything before it should be discarded
575  int64_t ts_copy_start;
576 
577  // the timebase of the packets sent to the muxer
580 
586  int64_t last_dropped;
587  int64_t last_nb0_frames[3];
588 
589  /* video only */
593  int is_cfr;
596 #if FFMPEG_ROTATION_METADATA
598 #endif
600  int bitexact;
602 #if FFMPEG_ROTATION_METADATA
604 #endif
605 
607 
609 
610  /* audio only */
611 #if FFMPEG_OPT_MAP_CHANNEL
612  int *audio_channels_map; /* list of the channels id to pick from the source stream */
613  int audio_channels_mapped; /* number of channels in audio_channels_map */
614 #endif
615 
617  FILE *logfile;
618 
620  char *avfilter;
621  char *filters; ///< filtergraph associated to the -filter option
622  char *filters_script; ///< filtergraph script associated to the -filter_script option
623 
627  char *apad;
628  OSTFinished finished; /* no more packets should be written for this stream */
629  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
630 
631  // init_output_stream() has been called for this stream
632  // The encoder and the bitstream filters have been initialized and the stream
633  // parameters are set in the AVStream.
635 
637 
638  const char *attachment_filename;
642 
644 
645  /* stats */
646  // combined size of all the packets sent to the muxer
647  uint64_t data_size_mux;
648  // combined size of all the packets received from the encoder
649  uint64_t data_size_enc;
650  // number of packets send to the muxer
652  // number of frames/samples sent to the encoder
653  uint64_t frames_encoded;
654  uint64_t samples_encoded;
655  // number of packets received from the encoder
656  uint64_t packets_encoded;
657 
658  /* packet quality factor */
659  int quality;
660 
661  /* packet picture type */
663 
664  /* frame encode sum of squared error values */
665  int64_t error[4];
666 
669 
672 } OutputStream;
673 
674 typedef struct OutputFile {
675  const AVClass *class;
676 
677  int index;
678 
680  const char *url;
681 
684 
686 
687  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
688  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
689 
690  int shortest;
691  int bitexact;
692 } OutputFile;
693 
694 extern InputFile **input_files;
695 extern int nb_input_files;
696 
697 extern OutputFile **output_files;
698 extern int nb_output_files;
699 
700 extern FilterGraph **filtergraphs;
701 extern int nb_filtergraphs;
702 
703 extern char *vstats_filename;
704 extern char *sdp_filename;
705 
706 extern float audio_drift_threshold;
707 extern float dts_delta_threshold;
708 extern float dts_error_threshold;
709 
711 extern float frame_drop_threshold;
712 extern int do_benchmark;
713 extern int do_benchmark_all;
714 extern int do_hex_dump;
715 extern int do_pkt_dump;
716 extern int copy_ts;
717 extern int start_at_zero;
718 extern int copy_tb;
719 extern int debug_ts;
720 extern int exit_on_error;
721 extern int abort_on_flags;
722 extern int print_stats;
723 extern int64_t stats_period;
724 extern int qp_hist;
725 extern int stdin_interaction;
726 extern AVIOContext *progress_avio;
727 extern float max_error_rate;
728 
729 extern char *filter_nbthreads;
730 extern int filter_complex_nbthreads;
731 extern int vstats_version;
732 extern int auto_conversion_filters;
733 
734 extern const AVIOInterruptCB int_cb;
735 
736 extern const OptionDef options[];
737 extern HWDevice *filter_hw_device;
738 
739 extern unsigned nb_output_dumped;
740 extern int main_return_code;
741 
742 extern int ignore_unknown_streams;
743 extern int copy_unknown_streams;
744 
745 extern int recast_media;
746 
747 #if FFMPEG_OPT_PSNR
748 extern int do_psnr;
749 #endif
750 
751 void term_init(void);
752 void term_exit(void);
753 
754 void show_usage(void);
755 
758 
759 void assert_file_overwrite(const char *filename);
760 char *file_read(const char *filename);
762 const AVCodec *find_codec_or_die(void *logctx, const char *name,
763  enum AVMediaType type, int encoder);
764 int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global);
765 
767 void check_filter_outputs(void);
771 
772 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub);
773 
775 
776 int ffmpeg_parse_options(int argc, char **argv);
777 
778 HWDevice *hw_device_get_by_name(const char *name);
779 int hw_device_init_from_string(const char *arg, HWDevice **dev);
780 void hw_device_free_all(void);
781 
785 
787 
788 /*
789  * Initialize muxing state for the given stream, should be called
790  * after the codec/streamcopy setup has been done.
791  *
792  * Open the muxer once all the streams have been initialized.
793  */
796 int of_open(const OptionsContext *o, const char *filename);
797 void of_close(OutputFile **pof);
798 
799 void of_enc_stats_close(void);
800 
801 /*
802  * Send a single packet to the output, applying any bitstream filters
803  * associated with the output stream. This may result in any number
804  * of packets actually being written, depending on what bitstream
805  * filters are applied. The supplied packet is consumed and will be
806  * blank (as if newly-allocated) when this function returns.
807  *
808  * If eof is set, instead indicate EOF to all bitstream filters and
809  * therefore flush any delayed packets to the output. A blank packet
810  * must be supplied in this case.
811  */
812 void of_output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int eof);
813 int64_t of_filesize(OutputFile *of);
814 
815 int ifile_open(const OptionsContext *o, const char *filename);
816 void ifile_close(InputFile **f);
817 
818 /**
819  * Get next input packet from the demuxer.
820  *
821  * @param pkt the packet is written here when this function returns 0
822  * @return
823  * - 0 when a packet has been read successfully
824  * - 1 when stream end was reached, but the stream is looped;
825  * caller should flush decoders and read from this demuxer again
826  * - a negative error code on failure
827  */
829 
830 /* iterate over all input streams in all input files;
831  * pass NULL to start iteration */
833 
834 #define SPECIFIER_OPT_FMT_str "%s"
835 #define SPECIFIER_OPT_FMT_i "%i"
836 #define SPECIFIER_OPT_FMT_i64 "%"PRId64
837 #define SPECIFIER_OPT_FMT_ui64 "%"PRIu64
838 #define SPECIFIER_OPT_FMT_f "%f"
839 #define SPECIFIER_OPT_FMT_dbl "%lf"
840 
841 #define WARN_MULTIPLE_OPT_USAGE(name, type, so, st)\
842 {\
843  char namestr[128] = "";\
844  const char *spec = so->specifier && so->specifier[0] ? so->specifier : "";\
845  for (int _i = 0; opt_name_##name[_i]; _i++)\
846  av_strlcatf(namestr, sizeof(namestr), "-%s%s", opt_name_##name[_i], opt_name_##name[_i+1] ? (opt_name_##name[_i+2] ? ", " : " or ") : "");\
847  av_log(NULL, AV_LOG_WARNING, "Multiple %s options specified for stream %d, only the last option '-%s%s%s "SPECIFIER_OPT_FMT_##type"' will be used.\n",\
848  namestr, st->index, opt_name_##name[0], spec[0] ? ":" : "", spec, so->u.type);\
849 }
850 
851 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
852 {\
853  int _ret, _matches = 0;\
854  SpecifierOpt *so;\
855  for (int _i = 0; _i < o->nb_ ## name; _i++) {\
856  char *spec = o->name[_i].specifier;\
857  if ((_ret = check_stream_specifier(fmtctx, st, spec)) > 0) {\
858  outvar = o->name[_i].u.type;\
859  so = &o->name[_i];\
860  _matches++;\
861  } else if (_ret < 0)\
862  exit_program(1);\
863  }\
864  if (_matches > 1)\
865  WARN_MULTIPLE_OPT_USAGE(name, type, so, st);\
866 }
867 
868 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
869 {\
870  int i;\
871  for (i = 0; i < o->nb_ ## name; i++) {\
872  char *spec = o->name[i].specifier;\
873  if (!strcmp(spec, mediatype))\
874  outvar = o->name[i].u.type;\
875  }\
876 }
877 
878 extern const char * const opt_name_codec_names[];
879 extern const char * const opt_name_codec_tags[];
880 extern const char * const opt_name_frame_rates[];
881 extern const char * const opt_name_top_field_first[];
882 
883 #endif /* FFTOOLS_FFMPEG_H */
OptionsContext::readrate
float readrate
Definition: ffmpeg.h:126
AVSubtitle
Definition: avcodec.h:2357
OptionsContext::nb_hwaccels
int nb_hwaccels
Definition: ffmpeg.h:137
KeyframeForceCtx::pts
int64_t * pts
Definition: ffmpeg.h:540
OptionsContext::nb_codec_names
int nb_codec_names
Definition: ffmpeg.h:106
InputFilter::sample_aspect_ratio
AVRational sample_aspect_ratio
Definition: ffmpeg.h:278
AVCodec
AVCodec.
Definition: codec.h:204
OptionsContext::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:123
of_open
int of_open(const OptionsContext *o, const char *filename)
Definition: ffmpeg_mux_init.c:2184
OptionsContext::enc_stats_post_fmt
SpecifierOpt * enc_stats_post_fmt
Definition: ffmpeg.h:261
InputFile::start_time
int64_t start_time
Definition: ffmpeg.h:460
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
OptionsContext::stop_time
int64_t stop_time
Definition: ffmpeg.h:158
StreamMap::file_index
int file_index
Definition: ffmpeg.h:84
KeyframeForceCtx::dropped_keyframe
int dropped_keyframe
Definition: ffmpeg.h:547
OutputStream::sq_idx_mux
int sq_idx_mux
Definition: ffmpeg.h:668
OutputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:292
FKF_PREV_FORCED_T
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:483
OptionsContext::canvas_sizes
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:227
InputStream::hwaccel_device
char * hwaccel_device
Definition: ffmpeg.h:416
VSYNC_VFR
@ VSYNC_VFR
Definition: ffmpeg.h:62
EncStatsComponent::type
enum EncStatsType type
Definition: ffmpeg.h:509
OptionsContext::dump_attachment
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:134
OutputStream::attachment_filename
const char * attachment_filename
Definition: ffmpeg.h:638
OutputFilter::ch_layouts
const AVChannelLayout * ch_layouts
Definition: ffmpeg.h:309
configure_filtergraph
int configure_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:962
OutputStream::ts_copy_start
int64_t ts_copy_start
Definition: ffmpeg.h:575
OptionsContext::nb_audio_sample_rate
int nb_audio_sample_rate
Definition: ffmpeg.h:112
nb_filtergraphs
int nb_filtergraphs
Definition: ffmpeg.c:142
OptionsContext::nb_max_frame_rates
int nb_max_frame_rates
Definition: ffmpeg.h:116
OptionsContext::intra_matrices
SpecifierOpt * intra_matrices
Definition: ffmpeg.h:203
InputStream::framerate_guessed
AVRational framerate_guessed
Definition: ffmpeg.h:350
InputFilter::width
int width
Definition: ffmpeg.h:277
OptionsContext::nb_time_bases
int nb_time_bases
Definition: ffmpeg.h:248
InputFilter::displaymatrix
int32_t * displaymatrix
Definition: ffmpeg.h:284
ENC_STATS_PTS
@ ENC_STATS_PTS
Definition: ffmpeg.h:497
KF_FORCE_SOURCE_NO_DROP
@ KF_FORCE_SOURCE_NO_DROP
Definition: ffmpeg.h:531
FKF_PREV_FORCED_N
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:482
OptionsContext::nb_audio_ch_layouts
int nb_audio_ch_layouts
Definition: ffmpeg.h:108
FilterGraph::graph_desc
const char * graph_desc
Definition: ffmpeg.h:315
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:54
InputStream::data_size
uint64_t data_size
Definition: ffmpeg.h:424
OutputStream::enc_ctx
AVCodecContext * enc_ctx
Definition: ffmpeg.h:581
OptionsContext::nb_rc_overrides
int nb_rc_overrides
Definition: ffmpeg.h:202
sub
static float sub(float src0, float src1)
Definition: dnn_backend_native_layer_mathbinary.c:31
thread.h
FilterGraph::inputs
InputFilter ** inputs
Definition: ffmpeg.h:323
ENC_STATS_DTS
@ ENC_STATS_DTS
Definition: ffmpeg.h:499
OptionsContext::hwaccels
SpecifierOpt * hwaccels
Definition: ffmpeg.h:136
OptionsContext::apad
SpecifierOpt * apad
Definition: ffmpeg.h:239
KeyframeForceCtx::nb_pts
int nb_pts
Definition: ffmpeg.h:541
frame_drop_threshold
float frame_drop_threshold
Definition: ffmpeg_opt.c:71
rational.h
InputStream::dec_ctx
AVCodecContext * dec_ctx
Definition: ffmpeg.h:345
InputStream::user_set_discard
int user_set_discard
Definition: ffmpeg.h:333
OptionsContext::rc_overrides
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:201
OutputStream::packets_written
atomic_uint_least64_t packets_written
Definition: ffmpeg.h:651
OptionsContext::nb_metadata
int nb_metadata
Definition: ffmpeg.h:176
OptionsContext::nb_hwaccel_devices
int nb_hwaccel_devices
Definition: ffmpeg.h:139
ENC_STATS_AVG_BITRATE
@ ENC_STATS_AVG_BITRATE
Definition: ffmpeg.h:505
InputFile::readrate
float readrate
Definition: ffmpeg.h:470
OutputStream::keep_pix_fmt
int keep_pix_fmt
Definition: ffmpeg.h:643
parse_and_set_vsync
int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global)
Definition: ffmpeg_opt.c:184
OptionsContext::nb_attachments
int nb_attachments
Definition: ffmpeg.h:153
OutputFile::start_time
int64_t start_time
start time in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:688
OptionsContext::frame_aspect_ratios
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:193
progress_avio
AVIOContext * progress_avio
Definition: ffmpeg.c:133
InputFile::index
int index
Definition: ffmpeg.h:443
InputFilter::ch_layout
AVChannelLayout ch_layout
Definition: ffmpeg.h:281
ffmpeg_parse_options
int ffmpeg_parse_options(int argc, char **argv)
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
InputFile::rate_emu
int rate_emu
Definition: ffmpeg.h:469
of_filesize
int64_t of_filesize(OutputFile *of)
Definition: ffmpeg_mux.c:734
OutputStream::unavailable
int unavailable
Definition: ffmpeg.h:629
OptionsContext::mux_max_delay
float mux_max_delay
Definition: ffmpeg.h:161
OptionsContext::nb_chroma_intra_matrices
int nb_chroma_intra_matrices
Definition: ffmpeg.h:208
OptionsContext::nb_pass
int nb_pass
Definition: ffmpeg.h:230
OutputStream::rotate_overridden
int rotate_overridden
Definition: ffmpeg.h:597
FKF_T
@ FKF_T
Definition: ffmpeg.h:484
sync_queue.h
LastFrameDuration::stream_idx
int stream_idx
Definition: ffmpeg.h:438
ENC_STATS_LITERAL
@ ENC_STATS_LITERAL
Definition: ffmpeg.h:492
OptionsContext::subtitle_disable
int subtitle_disable
Definition: ffmpeg.h:168
OptionsContext::nb_apad
int nb_apad
Definition: ffmpeg.h:240
OptionsContext::qscale
SpecifierOpt * qscale
Definition: ffmpeg.h:185
OutputStream::index
int index
Definition: ffmpeg.h:554
b
#define b
Definition: input.c:41
FilterGraph::index
int index
Definition: ffmpeg.h:314
OptionsContext::inter_matrices
SpecifierOpt * inter_matrices
Definition: ffmpeg.h:205
AudioChannelMap::stream_idx
int stream_idx
Definition: ffmpeg.h:91
KeyframeForceCtx::type
int type
Definition: ffmpeg.h:535
InputStream::nb_filters
int nb_filters
Definition: ffmpeg.h:409
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:492
OutputStream::sws_dict
AVDictionary * sws_dict
Definition: ffmpeg.h:625
nb_output_files
int nb_output_files
Definition: ffmpeg.c:139
show_usage
void show_usage(void)
Definition: ffmpeg_opt.c:1206
FilterGraph::nb_inputs
int nb_inputs
Definition: ffmpeg.h:324
OptionsContext::bitexact
int bitexact
Definition: ffmpeg.h:164
OptionsContext::audio_channels
SpecifierOpt * audio_channels
Definition: ffmpeg.h:109
OptionsContext::nb_frame_rates
int nb_frame_rates
Definition: ffmpeg.h:114
AVDictionary
Definition: dict.c:32
HWDevice
Definition: ffmpeg.h:75
hw_device_init_from_string
int hw_device_init_from_string(const char *arg, HWDevice **dev)
Definition: ffmpeg_hw.c:94
nb_input_files
int nb_input_files
Definition: ffmpeg.c:136
LastFrameDuration
Definition: ffmpeg.h:437
InputStream::decoding_needed
int decoding_needed
Definition: ffmpeg.h:334
OptionsContext::format
const char * format
Definition: ffmpeg.h:103
InputFile::input_sync_ref
int input_sync_ref
Definition: ffmpeg.h:449
OutputStream::rotate_override_value
double rotate_override_value
Definition: ffmpeg.h:603
ost
static AVStream * ost
Definition: vaapi_transcode.c:45
OutputStream::last_dropped
int64_t last_dropped
Definition: ffmpeg.h:586
OptionsContext::nb_disposition
int nb_disposition
Definition: ffmpeg.h:244
qp_hist
int qp_hist
Definition: ffmpeg_opt.c:83
OutputStream::ist
InputStream * ist
Definition: ffmpeg.h:559
AVIOInterruptCB
Callback for checking whether to abort blocking functions.
Definition: avio.h:59
OptionDef
Definition: cmdutils.h:146
InputFilter::ist
struct InputStream * ist
Definition: ffmpeg.h:267
init_simple_filtergraph
int init_simple_filtergraph(InputStream *ist, OutputStream *ost)
Definition: ffmpeg_filter.c:179
OptionsContext::display_rotations
SpecifierOpt * display_rotations
Definition: ffmpeg.h:195
OptionsContext::nb_guess_layout_max
int nb_guess_layout_max
Definition: ffmpeg.h:238
OutputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:683
InputFile::eof_reached
int eof_reached
Definition: ffmpeg.h:446
OutputStream::sq_frame
AVFrame * sq_frame
Definition: ffmpeg.h:584
InputStream
Definition: ffmpeg.h:329
filter_nbthreads
char * filter_nbthreads
Definition: ffmpeg_opt.c:86
OptionsContext::chapters_input_file
int chapters_input_file
Definition: ffmpeg.h:155
debug_ts
int debug_ts
Definition: ffmpeg_opt.c:79
OptionsContext::nb_presets
int nb_presets
Definition: ffmpeg.h:214
stats_period
int64_t stats_period
Definition: ffmpeg_opt.c:90
OptionsContext::rate_emu
int rate_emu
Definition: ffmpeg.h:125
OutputStream::vsync_method
enum VideoSyncMethod vsync_method
Definition: ffmpeg.h:592
dts_delta_threshold
float dts_delta_threshold
Definition: ffmpeg_opt.c:67
fifo.h
InputFile::audio_duration_queue_size
int audio_duration_queue_size
Definition: ffmpeg.h:476
OutputStream::filters
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:621
bsf.h
vstats_version
int vstats_version
Definition: ffmpeg_opt.c:88
assert_file_overwrite
void assert_file_overwrite(const char *filename)
Definition: ffmpeg_opt.c:656
OutputStream::initialized
int initialized
Definition: ffmpeg.h:634
opt_name_codec_names
const char *const opt_name_codec_names[]
Definition: ffmpeg_opt.c:56
OptionsContext::nb_dump_attachment
int nb_dump_attachment
Definition: ffmpeg.h:135
OptionsContext::g
OptionGroup * g
Definition: ffmpeg.h:97
InputStream::sub2video
struct InputStream::sub2video sub2video
OptionsContext::nb_display_vflips
int nb_display_vflips
Definition: ffmpeg.h:200
OutputStream::vsync_frame_number
int64_t vsync_frame_number
Definition: ffmpeg.h:563
InputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:270
StreamMap::disabled
int disabled
Definition: ffmpeg.h:83
AudioChannelMap::ostream_idx
int ostream_idx
Definition: ffmpeg.h:92
OutputStream::logfile_prefix
char * logfile_prefix
Definition: ffmpeg.h:616
EncStatsComponent::str_len
size_t str_len
Definition: ffmpeg.h:512
OptionsContext::nb_top_field_first
int nb_top_field_first
Definition: ffmpeg.h:210
OutputStream::next_pts
int64_t next_pts
Definition: muxing.c:59
InputStream::decoder_opts
AVDictionary * decoder_opts
Definition: ffmpeg.h:383
OptionsContext::nb_autorotate
int nb_autorotate
Definition: ffmpeg.h:143
InputStream::filter_in_rescale_delta_last
int64_t filter_in_rescale_delta_last
Definition: ffmpeg.h:370
KeyframeForceCtx::ref_pts
int64_t ref_pts
Definition: ffmpeg.h:537
OptionsContext::nb_reinit_filters
int nb_reinit_filters
Definition: ffmpeg.h:224
InputStream::nb_packets
uint64_t nb_packets
Definition: ffmpeg.h:426
OutputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:303
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
hw_device_setup_for_decode
int hw_device_setup_for_decode(InputStream *ist)
Definition: ffmpeg_hw.c:317
OptionsContext
Definition: ffmpeg.h:96
assert_avoptions
void assert_avoptions(AVDictionary *m)
Definition: ffmpeg.c:621
OptionsContext::time_bases
SpecifierOpt * time_bases
Definition: ffmpeg.h:247
InputStream::sub2video::last_pts
int64_t last_pts
Definition: ffmpeg.h:398
do_pkt_dump
int do_pkt_dump
Definition: ffmpeg_opt.c:75
OptionsContext::nb_audio_channel_maps
int nb_audio_channel_maps
Definition: ffmpeg.h:150
InputFile
Definition: ffmpeg.h:442
OptionsContext::recording_time
int64_t recording_time
Definition: ffmpeg.h:157
input_files
InputFile ** input_files
Definition: ffmpeg.c:135
InputStream::last_pkt_repeat_pict
int last_pkt_repeat_pict
Definition: ffmpeg.h:368
OptionsContext::pass
SpecifierOpt * pass
Definition: ffmpeg.h:229
OutputStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg.h:640
OutputFilter::sample_rates
const int * sample_rates
Definition: ffmpeg.h:310
InputFile::ts_offset_discont
int64_t ts_offset_discont
Extra timestamp offset added by discontinuity handling.
Definition: ffmpeg.h:458
OptionsContext::nb_stream_maps
int nb_stream_maps
Definition: ffmpeg.h:147
OptionsContext::audio_disable
int audio_disable
Definition: ffmpeg.h:167
InputStream::first_dts
int64_t first_dts
dts of the first packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:357
InputStream::hwaccel_pix_fmt
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:420
OutputFile::shortest
int shortest
Definition: ffmpeg.h:690
InputStream::dts
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:358
OptionsContext::enc_stats_post
SpecifierOpt * enc_stats_post
Definition: ffmpeg.h:257
OptionsContext::nb_enc_stats_pre_fmt
int nb_enc_stats_pre_fmt
Definition: ffmpeg.h:260
pkt
AVPacket * pkt
Definition: movenc.c:59
AudioChannelMap
Definition: ffmpeg.h:90
OptionsContext::presets
SpecifierOpt * presets
Definition: ffmpeg.h:213
OptionsContext::copy_initial_nonkeyframes
SpecifierOpt * copy_initial_nonkeyframes
Definition: ffmpeg.h:215
OptionsContext::codec_names
SpecifierOpt * codec_names
Definition: ffmpeg.h:105
term_init
void term_init(void)
Definition: ffmpeg.c:387
OptionsContext::nb_program
int nb_program
Definition: ffmpeg.h:246
StreamMap::linklabel
char * linklabel
Definition: ffmpeg.h:86
OutputFilter::width
int width
Definition: ffmpeg.h:300
HWACCEL_GENERIC
@ HWACCEL_GENERIC
Definition: ffmpeg.h:72
VSYNC_VSCFR
@ VSYNC_VSCFR
Definition: ffmpeg.h:63
EncStats::components
EncStatsComponent * components
Definition: ffmpeg.h:516
InputStream::cfr_next_pts
int64_t cfr_next_pts
Definition: ffmpeg.h:377
s
#define s(width, name)
Definition: cbs_vp9.c:256
FilterGraph::outputs
OutputFilter ** outputs
Definition: ffmpeg.h:325
vstats_filename
char * vstats_filename
Definition: ffmpeg_opt.c:63
OutputStream::frame_aspect_ratio
AVRational frame_aspect_ratio
Definition: ffmpeg.h:606
InputStream::framerate
AVRational framerate
Definition: ffmpeg.h:384
do_psnr
int do_psnr
Definition: ffmpeg_opt.c:96
OutputStream::mux_timebase
AVRational mux_timebase
Definition: ffmpeg.h:578
OptionsContext::nb_bits_per_raw_sample
int nb_bits_per_raw_sample
Definition: ffmpeg.h:254
ENC_STATS_FILE_IDX
@ ENC_STATS_FILE_IDX
Definition: ffmpeg.h:493
ENCODER_FINISHED
@ ENCODER_FINISHED
Definition: ffmpeg.h:525
OptionsContext::limit_filesize
int64_t limit_filesize
Definition: ffmpeg.h:159
OutputStream::audio_channels_mapped
int audio_channels_mapped
Definition: ffmpeg.h:613
InputFilter
Definition: ffmpeg.h:265
OutputStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg.h:641
OptionsContext::audio_ch_layouts
SpecifierOpt * audio_ch_layouts
Definition: ffmpeg.h:107
ENC_STATS_BITRATE
@ ENC_STATS_BITRATE
Definition: ffmpeg.h:504
AVHWDeviceType
AVHWDeviceType
Definition: hwcontext.h:27
OutputFilter::ost
struct OutputStream * ost
Definition: ffmpeg.h:291
OptionsContext::nb_enc_stats_post
int nb_enc_stats_post
Definition: ffmpeg.h:258
forced_keyframes_const
forced_keyframes_const
Definition: ffmpeg.h:479
ignore_unknown_streams
int ignore_unknown_streams
Definition: ffmpeg_opt.c:98
MUXER_FINISHED
@ MUXER_FINISHED
Definition: ffmpeg.h:526
OutputStream::avfilter
char * avfilter
Definition: ffmpeg.h:620
audio_drift_threshold
float audio_drift_threshold
Definition: ffmpeg_opt.c:66
InputStream::filters
InputFilter ** filters
Definition: ffmpeg.h:408
OptionsContext::nb_copy_initial_nonkeyframes
int nb_copy_initial_nonkeyframes
Definition: ffmpeg.h:216
max_error_rate
float max_error_rate
Definition: ffmpeg_opt.c:85
AVExpr
Definition: eval.c:157
OptionsContext::sample_fmts
SpecifierOpt * sample_fmts
Definition: ffmpeg.h:183
OptionsContext::shortest
int shortest
Definition: ffmpeg.h:163
InputStream::hwaccel_retrieve_data
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:419
InputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:268
AVThreadMessageQueue
Definition: threadmessage.c:27
OptionsContext::accurate_seek
int accurate_seek
Definition: ffmpeg.h:127
OutputStream::last_frame
AVFrame * last_frame
Definition: ffmpeg.h:583
OutputStream::enc_stats_pre
EncStats enc_stats_pre
Definition: ffmpeg.h:670
OptionsContext::nb_canvas_sizes
int nb_canvas_sizes
Definition: ffmpeg.h:228
OptionsContext::nb_max_muxing_queue_size
int nb_max_muxing_queue_size
Definition: ffmpeg.h:234
OutputStream::bitexact
int bitexact
Definition: ffmpeg.h:600
arg
const char * arg
Definition: jacosubdec.c:67
KeyframeForceCtx::expr_const_values
double expr_const_values[FKF_NB]
Definition: ffmpeg.h:545
of_enc_stats_close
void of_enc_stats_close(void)
Definition: ffmpeg_mux_init.c:215
OutputStream::streamcopy_started
int streamcopy_started
Definition: ffmpeg.h:639
OutputStream::encoder_opts
AVDictionary * encoder_opts
Definition: ffmpeg.h:624
OptionsContext::start_time
int64_t start_time
Definition: ffmpeg.h:100
InputStream::pts
int64_t pts
current pts of the decoded frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:361
AVFormatContext
Format I/O context.
Definition: avformat.h:1216
OutputFilter::height
int height
Definition: ffmpeg.h:300
OptionsContext::nb_filter_scripts
int nb_filter_scripts
Definition: ffmpeg.h:222
OptionsContext::reinit_filters
SpecifierOpt * reinit_filters
Definition: ffmpeg.h:223
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
OutputFilter::name
uint8_t * name
Definition: ffmpeg.h:293
InputStream::sub2video::w
int w
Definition: ffmpeg.h:402
InputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:385
InputStream::st
AVStream * st
Definition: ffmpeg.h:331
forced_keyframes_const_names
const char *const forced_keyframes_const_names[]
Definition: ffmpeg_mux_init.c:2007
OptionsContext::filters
SpecifierOpt * filters
Definition: ffmpeg.h:219
OptionsContext::frame_sizes
SpecifierOpt * frame_sizes
Definition: ffmpeg.h:117
InputFile::start_time_effective
int64_t start_time_effective
Effective format start time based on enabled streams.
Definition: ffmpeg.h:453
ENC_STATS_PTS_TIME
@ ENC_STATS_PTS_TIME
Definition: ffmpeg.h:498
of_close
void of_close(OutputFile **pof)
Definition: ffmpeg_mux.c:707
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
OptionsContext::fix_sub_duration
SpecifierOpt * fix_sub_duration
Definition: ffmpeg.h:225
OptionsContext::codec_tags
SpecifierOpt * codec_tags
Definition: ffmpeg.h:181
InputStream::next_pts
int64_t next_pts
synthetic pts for the next decode frame (in AV_TIME_BASE units)
Definition: ffmpeg.h:360
OptionsContext::force_fps
SpecifierOpt * force_fps
Definition: ffmpeg.h:191
OptionsContext::nb_intra_matrices
int nb_intra_matrices
Definition: ffmpeg.h:204
OutputStream::audio_channels_map
int * audio_channels_map
Definition: ffmpeg.h:612
InputStream::hwaccel_id
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:414
EncStats
Definition: ffmpeg.h:515
OutputStream::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:590
copy_unknown_streams
int copy_unknown_streams
Definition: ffmpeg_opt.c:99
ifile_get_packet
int ifile_get_packet(InputFile *f, AVPacket **pkt)
Get next input packet from the demuxer.
Definition: ffmpeg_demux.c:410
InputFilter::eof
int eof
Definition: ffmpeg.h:286
InputStream::fix_sub_duration
int fix_sub_duration
Definition: ffmpeg.h:390
OutputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:595
InputStream::hwaccel_output_format
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:417
opt_name_top_field_first
const char *const opt_name_top_field_first[]
Definition: ffmpeg_opt.c:59
OptionsContext::max_frames
SpecifierOpt * max_frames
Definition: ffmpeg.h:177
AVFilterGraph
Definition: avfilter.h:865
do_benchmark_all
int do_benchmark_all
Definition: ffmpeg_opt.c:73
filtergraphs
FilterGraph ** filtergraphs
Definition: ffmpeg.c:141
OptionsContext::nb_display_hflips
int nb_display_hflips
Definition: ffmpeg.h:198
OptionsContext::input_sync_ref
int input_sync_ref
Definition: ffmpeg.h:129
InputStream::min_pts
int64_t min_pts
Definition: ffmpeg.h:372
OutputFile::index
int index
Definition: ffmpeg.h:677
OptionGroup
Definition: cmdutils.h:250
OptionsContext::program
SpecifierOpt * program
Definition: ffmpeg.h:245
OptionsContext::nb_enc_stats_pre
int nb_enc_stats_pre
Definition: ffmpeg.h:256
InputStream::sub2video::sub_queue
AVFifo * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:400
FilterGraph::nb_outputs
int nb_outputs
Definition: ffmpeg.h:326
OutputStream::logfile
FILE * logfile
Definition: ffmpeg.h:617
swresample.h
InputStream::sub2video::initialize
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:403
OptionsContext::nb_metadata_map
int nb_metadata_map
Definition: ffmpeg.h:212
InputStream::par
AVCodecParameters * par
Codec parameters - to be used by the decoding/streamcopy code.
Definition: ffmpeg.h:344
OptionsContext::nb_filters
int nb_filters
Definition: ffmpeg.h:220
OutputFile::streams
OutputStream ** streams
Definition: ffmpeg.h:682
InputStream::frames_decoded
uint64_t frames_decoded
Definition: ffmpeg.h:428
recast_media
int recast_media
Definition: ffmpeg_opt.c:100
OptionsContext::nb_fps_mode
int nb_fps_mode
Definition: ffmpeg.h:190
InputStream::next_dts
int64_t next_dts
Definition: ffmpeg.h:356
FilterGraph
Definition: ffmpeg.h:313
OptionsContext::display_hflips
SpecifierOpt * display_hflips
Definition: ffmpeg.h:197
print_stats
int print_stats
Definition: ffmpeg_opt.c:82
InputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:266
nb_output_dumped
unsigned nb_output_dumped
Definition: ffmpeg.c:130
options
const OptionDef options[]
VideoSyncMethod
VideoSyncMethod
Definition: ffmpeg.h:58
eval.h
OutputStream::force_fps
int force_fps
Definition: ffmpeg.h:594
OptionsContext::nb_frame_aspect_ratios
int nb_frame_aspect_ratios
Definition: ffmpeg.h:194
OutputStream::filter
OutputFilter * filter
Definition: ffmpeg.h:619
f
f
Definition: af_crystalizer.c:122
AVIOContext
Bytestream IO Context.
Definition: avio.h:166
sub2video_update
void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub)
Definition: ffmpeg.c:220
InputStream::hwaccel_device_type
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:415
OptionsContext::thread_queue_size
int thread_queue_size
Definition: ffmpeg.h:128
AVMediaType
AVMediaType
Definition: avutil.h:199
InputStream::decoded_frame
AVFrame * decoded_frame
Definition: ffmpeg.h:347
AVFifo
Definition: fifo.c:35
InputStream::wrap_correction_done
int wrap_correction_done
Definition: ffmpeg.h:362
InputStream::start
int64_t start
Definition: ffmpeg.h:353
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition: channel_layout.h:301
threadmessage.h
OutputStream::error
int64_t error[4]
Definition: ffmpeg.h:665
InputStream::file_index
int file_index
Definition: ffmpeg.h:330
OutputStream::data_size_enc
uint64_t data_size_enc
Definition: ffmpeg.h:649
InputFile::last_ts
int64_t last_ts
Definition: ffmpeg.h:459
FilterGraph::graph
AVFilterGraph * graph
Definition: ffmpeg.h:317
EncStatsType
EncStatsType
Definition: ffmpeg.h:491
InputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:348
InputStream::got_output
int got_output
Definition: ffmpeg.h:392
StreamMap
Definition: ffmpeg.h:82
ENC_STATS_NB_SAMPLES
@ ENC_STATS_NB_SAMPLES
Definition: ffmpeg.h:502
copy_ts
int copy_ts
Definition: ffmpeg_opt.c:76
OptionsContext::filter_scripts
SpecifierOpt * filter_scripts
Definition: ffmpeg.h:221
OutputStream::packets_encoded
uint64_t packets_encoded
Definition: ffmpeg.h:656
avio.h
copy_tb
int copy_tb
Definition: ffmpeg_opt.c:78
OptionsContext::seek_timestamp
int seek_timestamp
Definition: ffmpeg.h:102
hwaccel_decode_init
int hwaccel_decode_init(AVCodecContext *avctx)
Definition: ffmpeg_hw.c:542
OptionsContext::top_field_first
SpecifierOpt * top_field_first
Definition: ffmpeg.h:209
HWDevice::device_ref
AVBufferRef * device_ref
Definition: ffmpeg.h:78
OutputFile::url
const char * url
Definition: ffmpeg.h:680
OptionsContext::nb_discard
int nb_discard
Definition: ffmpeg.h:242
OSTFinished
OSTFinished
Definition: ffmpeg.h:524
OutputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:290
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
InputStream::samples_decoded
uint64_t samples_decoded
Definition: ffmpeg.h:429
OptionsContext::find_stream_info
int find_stream_info
Definition: ffmpeg.h:130
strip_specifiers
AVDictionary * strip_specifiers(const AVDictionary *dict)
Definition: ffmpeg_opt.c:167
check_filter_outputs
void check_filter_outputs(void)
Definition: ffmpeg_filter.c:648
OptionsContext::metadata
SpecifierOpt * metadata
Definition: ffmpeg.h:175
OutputStream::kf
KeyframeForceCtx kf
Definition: ffmpeg.h:608
InputStream::max_pts
int64_t max_pts
Definition: ffmpeg.h:373
do_benchmark
int do_benchmark
Definition: ffmpeg_opt.c:72
OptionsContext::nb_autoscale
int nb_autoscale
Definition: ffmpeg.h:252
OutputFile::sq_encode
SyncQueue * sq_encode
Definition: ffmpeg.h:685
KF_FORCE_SOURCE
@ KF_FORCE_SOURCE
Definition: ffmpeg.h:530
OutputStream::pict_type
int pict_type
Definition: ffmpeg.h:662
OptionsContext::frame_rates
SpecifierOpt * frame_rates
Definition: ffmpeg.h:113
ENC_STATS_FRAME_NUM
@ ENC_STATS_FRAME_NUM
Definition: ffmpeg.h:495
KeyframeForceCtx
Definition: ffmpeg.h:534
OutputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:297
HWACCEL_AUTO
@ HWACCEL_AUTO
Definition: ffmpeg.h:71
OptionsContext::autorotate
SpecifierOpt * autorotate
Definition: ffmpeg.h:142
OutputStream::max_frame_rate
AVRational max_frame_rate
Definition: ffmpeg.h:591
InputStream::guess_layout_max
int guess_layout_max
Definition: ffmpeg.h:386
OutputStream::filters_script
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:622
OutputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:585
OutputStream::apad
char * apad
Definition: ffmpeg.h:627
OptionsContext::nb_hwaccel_output_formats
int nb_hwaccel_output_formats
Definition: ffmpeg.h:141
init_complex_filtergraph
int init_complex_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:317
OptionsContext::forced_key_frames
SpecifierOpt * forced_key_frames
Definition: ffmpeg.h:187
of_output_packet
void of_output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int eof)
Definition: ffmpeg_mux.c:320
AVOutputFormat
Definition: avformat.h:509
OutputStream::data_size_mux
uint64_t data_size_mux
Definition: ffmpeg.h:647
OptionsContext::metadata_map
SpecifierOpt * metadata_map
Definition: ffmpeg.h:211
InputStream::ret
int ret
Definition: ffmpeg.h:393
OptionsContext::enc_stats_pre
SpecifierOpt * enc_stats_pre
Definition: ffmpeg.h:255
StreamMap::stream_index
int stream_index
Definition: ffmpeg.h:85
OptionsContext::nb_qscale
int nb_qscale
Definition: ffmpeg.h:186
OptionsContext::stream_maps
StreamMap * stream_maps
Definition: ffmpeg.h:146
OptionsContext::nb_ts_scale
int nb_ts_scale
Definition: ffmpeg.h:133
find_codec_or_die
const AVCodec * find_codec_or_die(void *logctx, const char *name, enum AVMediaType type, int encoder)
Definition: ffmpeg_opt.c:626
OptionsContext::audio_sample_rate
SpecifierOpt * audio_sample_rate
Definition: ffmpeg.h:111
OptionsContext::start_time_eof
int64_t start_time_eof
Definition: ffmpeg.h:101
VSYNC_CFR
@ VSYNC_CFR
Definition: ffmpeg.h:61
OptionsContext::shortest_buf_duration
float shortest_buf_duration
Definition: ffmpeg.h:162
OutputFile::bitexact
int bitexact
Definition: ffmpeg.h:691
OptionsContext::nb_fix_sub_duration
int nb_fix_sub_duration
Definition: ffmpeg.h:226
exit_on_error
int exit_on_error
Definition: ffmpeg_opt.c:80
output_files
OutputFile ** output_files
Definition: ffmpeg.c:138
OutputStream::last_nb0_frames
int64_t last_nb0_frames[3]
Definition: ffmpeg.h:587
OptionsContext::nb_frame_pix_fmts
int nb_frame_pix_fmts
Definition: ffmpeg.h:120
InputStream::processing_needed
int processing_needed
Definition: ffmpeg.h:337
hw_device_setup_for_filter
int hw_device_setup_for_filter(FilterGraph *fg)
Definition: ffmpeg_hw.c:551
InputFile::ctx
AVFormatContext * ctx
Definition: ffmpeg.h:445
InputFile::accurate_seek
int accurate_seek
Definition: ffmpeg.h:471
OptionsContext::nb_copy_prior_start
int nb_copy_prior_start
Definition: ffmpeg.h:218
ENC_STATS_STREAM_IDX
@ ENC_STATS_STREAM_IDX
Definition: ffmpeg.h:494
OptionsContext::bits_per_raw_sample
SpecifierOpt * bits_per_raw_sample
Definition: ffmpeg.h:253
ENC_STATS_SAMPLE_NUM
@ ENC_STATS_SAMPLE_NUM
Definition: ffmpeg.h:501
OptionsContext::bitstream_filters
SpecifierOpt * bitstream_filters
Definition: ffmpeg.h:179
OptionsContext::streamid_map
int * streamid_map
Definition: ffmpeg.h:172
InputFile::recording_time
int64_t recording_time
Definition: ffmpeg.h:461
avcodec.h
OptionsContext::passlogfiles
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:231
SpecifierOpt
Definition: cmdutils.h:134
OptionsContext::autoscale
SpecifierOpt * autoscale
Definition: ffmpeg.h:251
AVStream
Stream structure.
Definition: avformat.h:948
OptionsContext::nb_bitstream_filters
int nb_bitstream_filters
Definition: ffmpeg.h:180
pixfmt.h
abort_on_flags
int abort_on_flags
Definition: ffmpeg_opt.c:81
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
InputFilter::name
uint8_t * name
Definition: ffmpeg.h:269
OptionsContext::nb_streamid_map
int nb_streamid_map
Definition: ffmpeg.h:173
VSYNC_DROP
@ VSYNC_DROP
Definition: ffmpeg.h:64
sdp_filename
char * sdp_filename
Definition: ffmpeg_opt.c:64
OutputFilter::ch_layout
AVChannelLayout ch_layout
Definition: ffmpeg.h:304
OptionsContext::audio_channel_maps
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:149
InputFile::streams
InputStream ** streams
Definition: ffmpeg.h:466
InputStream::reinit_filters
int reinit_filters
Definition: ffmpeg.h:411
hw_device_free_all
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:288
avformat.h
InputFile::eagain
int eagain
Definition: ffmpeg.h:447
HWAccelID
HWAccelID
Definition: ffmpeg.h:69
dict.h
OptionsContext::nb_sample_fmts
int nb_sample_fmts
Definition: ffmpeg.h:184
InputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:280
OptionsContext::nb_enc_time_bases
int nb_enc_time_bases
Definition: ffmpeg.h:250
SyncQueue
Definition: sync_queue.c:45
ifile_close
void ifile_close(InputFile **f)
Definition: ffmpeg_demux.c:479
OptionsContext::nb_max_frames
int nb_max_frames
Definition: ffmpeg.h:178
OptionsContext::disposition
SpecifierOpt * disposition
Definition: ffmpeg.h:243
ifilter_parameters_from_frame
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
Definition: ffmpeg_filter.c:1125
OutputFilter::format
int format
Definition: ffmpeg.h:302
ifile_open
int ifile_open(const OptionsContext *o, const char *filename)
Definition: ffmpeg_demux.c:842
filter_hw_device
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:61
AVCodecContext
main external API structure.
Definition: avcodec.h:431
hw_device_setup_for_encode
int hw_device_setup_for_encode(OutputStream *ost)
Definition: ffmpeg_hw.c:445
OptionsContext::mux_preload
float mux_preload
Definition: ffmpeg.h:160
HWDevice::name
const char * name
Definition: ffmpeg.h:76
InputFilter::format
int format
Definition: ffmpeg.h:275
OutputStream::finished
OSTFinished finished
Definition: ffmpeg.h:628
OptionsContext::nb_audio_channels
int nb_audio_channels
Definition: ffmpeg.h:110
InputStream::prev_pkt_pts
int64_t prev_pkt_pts
Definition: ffmpeg.h:352
InputFile::audio_duration_queue
AVThreadMessageQueue * audio_duration_queue
Definition: ffmpeg.h:475
OptionsContext::guess_layout_max
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:237
KeyframeForceCtx::index
int index
Definition: ffmpeg.h:542
OptionsContext::enc_time_bases
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:249
avfilter.h
OutputFilter::formats
const int * formats
Definition: ffmpeg.h:308
FilterGraph::is_meta
int is_meta
Definition: ffmpeg.h:321
OutputStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg.h:568
OptionsContext::video_disable
int video_disable
Definition: ffmpeg.h:166
InputStream::prev_sub
struct InputStream::@3 prev_sub
OutputStream::quality
int quality
Definition: ffmpeg.h:659
OptionsContext::nb_forced_key_frames
int nb_forced_key_frames
Definition: ffmpeg.h:188
OutputStream::bits_per_raw_sample
int bits_per_raw_sample
Definition: ffmpeg.h:601
OptionsContext::max_frame_rates
SpecifierOpt * max_frame_rates
Definition: ffmpeg.h:115
OutputStream::enc_stats_post
EncStats enc_stats_post
Definition: ffmpeg.h:671
InputStream::nb_samples
int64_t nb_samples
Definition: ffmpeg.h:379
InputFilter::height
int height
Definition: ffmpeg.h:277
OptionsContext::frame_pix_fmts
SpecifierOpt * frame_pix_fmts
Definition: ffmpeg.h:119
video_sync_method
enum VideoSyncMethod video_sync_method
Definition: ffmpeg_opt.c:70
OutputStream::frames_encoded
uint64_t frames_encoded
Definition: ffmpeg.h:653
HWACCEL_NONE
@ HWACCEL_NONE
Definition: ffmpeg.h:70
InputFile::ts_offset
int64_t ts_offset
Definition: ffmpeg.h:454
OptionsContext::nb_frame_sizes
int nb_frame_sizes
Definition: ffmpeg.h:118
OptionsContext::hwaccel_devices
SpecifierOpt * hwaccel_devices
Definition: ffmpeg.h:138
InputStream::discard
int discard
Definition: ffmpeg.h:332
OptionsContext::max_muxing_queue_size
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:233
AVFilterContext
An instance of a filter.
Definition: avfilter.h:402
remove_avoptions
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:612
VSYNC_AUTO
@ VSYNC_AUTO
Definition: ffmpeg.h:59
OutputFilter
Definition: ffmpeg.h:289
InputStream::sub2video::frame
AVFrame * frame
Definition: ffmpeg.h:401
OptionsContext::nb_muxing_queue_data_threshold
int nb_muxing_queue_data_threshold
Definition: ffmpeg.h:236
OptionsContext::nb_inter_matrices
int nb_inter_matrices
Definition: ffmpeg.h:206
OutputStream::last_filter_pts
int64_t last_filter_pts
Definition: ffmpeg.h:570
OptionsContext::enc_stats_pre_fmt
SpecifierOpt * enc_stats_pre_fmt
Definition: ffmpeg.h:259
OptionsContext::muxing_queue_data_threshold
SpecifierOpt * muxing_queue_data_threshold
Definition: ffmpeg.h:235
avutil.h
start_at_zero
int start_at_zero
Definition: ffmpeg_opt.c:77
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
OutputStream::file_index
int file_index
Definition: ffmpeg.h:553
OptionsContext::copy_prior_start
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:217
InputStream::sub2video
Definition: ffmpeg.h:397
ist_iter
InputStream * ist_iter(InputStream *prev)
Definition: ffmpeg.c:596
OptionsContext::fps_mode
SpecifierOpt * fps_mode
Definition: ffmpeg.h:189
OutputFilter::out_tmp
AVFilterInOut * out_tmp
Definition: ffmpeg.h:296
auto_conversion_filters
int auto_conversion_filters
Definition: ffmpeg_opt.c:89
InputStream::sub2video::h
int h
Definition: ffmpeg.h:402
OptionsContext::nb_passlogfiles
int nb_passlogfiles
Definition: ffmpeg.h:232
KeyframeForceCtx::pexpr
AVExpr * pexpr
Definition: ffmpeg.h:544
opt_name_frame_rates
const char *const opt_name_frame_rates[]
Definition: ffmpeg_opt.c:57
OutputStream::is_cfr
int is_cfr
Definition: ffmpeg.h:593
OutputStream::autoscale
int autoscale
Definition: ffmpeg.h:599
InputFilter::hw_frames_ctx
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:283
FKF_N_FORCED
@ FKF_N_FORCED
Definition: ffmpeg.h:481
OptionsContext::attachments
const char ** attachments
Definition: ffmpeg.h:152
InputStream::sub2video::end_pts
int64_t end_pts
Definition: ffmpeg.h:399
stdin_interaction
int stdin_interaction
Definition: ffmpeg_opt.c:84
do_hex_dump
int do_hex_dump
Definition: ffmpeg_opt.c:74
OptionsContext::nb_enc_stats_post_fmt
int nb_enc_stats_post_fmt
Definition: ffmpeg.h:262
LastFrameDuration::duration
int64_t duration
Definition: ffmpeg.h:439
InputStream::ts_scale
double ts_scale
Definition: ffmpeg.h:381
OptionsContext::ts_scale
SpecifierOpt * ts_scale
Definition: ffmpeg.h:132
AVPacket
This structure stores compressed data.
Definition: packet.h:351
main_return_code
int main_return_code
Definition: ffmpeg.c:326
EncStatsComponent
Definition: ffmpeg.h:508
OptionsContext::chroma_intra_matrices
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:207
FilterGraph::reconfiguration
int reconfiguration
Definition: ffmpeg.h:318
HWDevice::type
enum AVHWDeviceType type
Definition: ffmpeg.h:77
cmdutils.h
InputFile::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:448
file_read
char * file_read(const char *filename)
Definition: ffmpeg_opt.c:700
EncStats::nb_components
int nb_components
Definition: ffmpeg.h:517
OptionsContext::data_disable
int data_disable
Definition: ffmpeg.h:169
InputStream::dts_buffer
int64_t * dts_buffer
Definition: ffmpeg.h:431
InputFilter::frame_queue
AVFifo * frame_queue
Definition: ffmpeg.h:272
int32_t
int32_t
Definition: audioconvert.c:56
FKF_NB
@ FKF_NB
Definition: ffmpeg.h:485
ENC_STATS_PKT_SIZE
@ ENC_STATS_PKT_SIZE
Definition: ffmpeg.h:503
OutputStream
Definition: muxing.c:54
OptionsContext::nb_display_rotations
int nb_display_rotations
Definition: ffmpeg.h:196
hwcontext.h
OutputStream::sq_idx_encode
int sq_idx_encode
Definition: ffmpeg.h:667
OutputStream::st
AVStream * st
Definition: muxing.c:55
EncStatsComponent::str
uint8_t * str
Definition: ffmpeg.h:511
dts_error_threshold
float dts_error_threshold
Definition: ffmpeg_opt.c:68
OptionsContext::hwaccel_output_formats
SpecifierOpt * hwaccel_output_formats
Definition: ffmpeg.h:140
OutputFile::format
const AVOutputFormat * format
Definition: ffmpeg.h:679
InputStream::nb_dts_buffer
int nb_dts_buffer
Definition: ffmpeg.h:432
InputStream::saw_first_ts
int saw_first_ts
Definition: ffmpeg.h:382
OutputStream::swr_opts
AVDictionary * swr_opts
Definition: ffmpeg.h:626
OutputFilter::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:301
OutputStream::filtered_frame
AVFrame * filtered_frame
Definition: ffmpeg.h:582
InputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:467
opt_name_codec_tags
const char *const opt_name_codec_tags[]
Definition: ffmpeg_opt.c:58
FKF_N
@ FKF_N
Definition: ffmpeg.h:480
ENC_STATS_DTS_TIME
@ ENC_STATS_DTS_TIME
Definition: ffmpeg.h:500
OutputFile::recording_time
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:687
int
int
Definition: ffmpeg_filter.c:156
OutputStream::samples_encoded
uint64_t samples_encoded
Definition: ffmpeg.h:654
OutputStream::inputs_done
int inputs_done
Definition: ffmpeg.h:636
of_stream_init
int of_stream_init(OutputFile *of, OutputStream *ost)
Definition: ffmpeg_mux.c:574
hw_device_get_by_name
HWDevice * hw_device_get_by_name(const char *name)
Definition: ffmpeg_hw.c:44
OptionsContext::nb_codec_tags
int nb_codec_tags
Definition: ffmpeg.h:182
AVFilterInOut
A linked-list of the inputs/outputs of the filter chain.
Definition: avfilter.h:1025
VSYNC_PASSTHROUGH
@ VSYNC_PASSTHROUGH
Definition: ffmpeg.h:60
InputStream::dec
const AVCodec * dec
Definition: ffmpeg.h:346
EncStats::io
AVIOContext * io
Definition: ffmpeg.h:519
OptionsContext::discard
SpecifierOpt * discard
Definition: ffmpeg.h:241
InputStream::subtitle
AVSubtitle subtitle
Definition: ffmpeg.h:394
of_write_trailer
int of_write_trailer(OutputFile *of)
Definition: ffmpeg_mux.c:595
filtergraph_is_simple
int filtergraph_is_simple(FilterGraph *fg)
Definition: ffmpeg_filter.c:1157
OptionsContext::display_vflips
SpecifierOpt * display_vflips
Definition: ffmpeg.h:199
atomic_uint_least64_t
intptr_t atomic_uint_least64_t
Definition: stdatomic.h:69
ENC_STATS_TIMEBASE
@ ENC_STATS_TIMEBASE
Definition: ffmpeg.h:496
term_exit
void term_exit(void)
Definition: ffmpeg.c:316
filter_complex_nbthreads
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:87
OutputFile
Definition: ffmpeg.h:674
OptionsContext::loop
int loop
Definition: ffmpeg.h:124
InputStream::autorotate
int autorotate
Definition: ffmpeg.h:388
OutputStream::enc_timebase
AVRational enc_timebase
Definition: ffmpeg.h:579
OptionsContext::nb_force_fps
int nb_force_fps
Definition: ffmpeg.h:192