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 
232  int nb_pass;
242  int nb_apad;
270 
271 typedef struct InputFilter {
273  struct InputStream *ist;
275  uint8_t *name;
276  enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
277 
279 
280  // parameters configured for this input
281  int format;
282 
283  int width, height;
285 
288 
291 
292  int eof;
293 } InputFilter;
294 
295 typedef struct OutputFilter {
297  struct OutputStream *ost;
299  uint8_t *name;
300 
301  /* temporary storage until stream maps are processed */
304 
305  /* desired output stream properties */
306  int width, height;
308  int format;
311 
312  // those are only set if no format is specified and the encoder gives us multiple options
313  // They point directly to the relevant lists of the encoder.
314  const int *formats;
316  const int *sample_rates;
317 } OutputFilter;
318 
319 typedef struct FilterGraph {
320  int index;
321  const char *graph_desc;
322 
325  // true when the filtergraph contains only meta filters
326  // that do not modify the frame data
327  int is_meta;
328 
333 } FilterGraph;
334 
335 typedef struct InputStream {
336  const AVClass *class;
337 
340  int discard; /* true if stream data should be discarded */
342  int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
343 #define DECODING_FOR_OST 1
344 #define DECODING_FOR_FILTER 2
345  int processing_needed; /* non zero if the packets must be processed */
346  // should attach FrameData as opaque_ref after decoding
348 
349  /**
350  * Codec parameters - to be used by the decoding/streamcopy code.
351  * st->codecpar should not be accessed, because it may be modified
352  * concurrently by the demuxing thread.
353  */
356  const AVCodec *dec;
359 
361 
362  int64_t prev_pkt_pts;
363  int64_t start; /* time when read started */
364  /* predicted dts of the next packet read for this stream or (when there are
365  * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
366  int64_t next_dts;
367  int64_t first_dts; ///< dts of the first packet read for this stream (in AV_TIME_BASE units)
368  int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
369 
370  int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
371  int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
373 
374  // the value of AVCodecParserContext.repeat_pict from the AVStream parser
375  // for the last packet returned from ifile_get_packet()
376  // -1 if unknown
377  // FIXME: this is a hack, the avstream parser should not be used
379 
381 
382  // when forcing constant input framerate through -r,
383  // this contains the pts that will be given to the next decoded frame
384  int64_t cfr_next_pts;
385 
386  int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
387 
390  AVRational framerate; /* framerate forced with -r */
392 
394 
396  struct { /* previous decoded subtitle and related variables */
398  int ret;
400  } prev_sub;
401 
402  struct sub2video {
403  int64_t last_pts;
404  int64_t end_pts;
405  AVFifo *sub_queue; ///< queue of AVSubtitle* before filter init
407  int w, h;
408  unsigned int initialize; ///< marks if sub2video_update should force an initialization
409  } sub2video;
410 
411  /* decoded data from this stream goes into all those filters
412  * currently video and audio only */
415 
417 
418  /* hwaccel options */
423 
426 
427  /* stats */
428  // combined size of all the packets read
429  uint64_t data_size;
430  /* number of packets successfully read for this stream */
431  uint64_t nb_packets;
432  // number of frames/samples retrieved from the decoder
433  uint64_t frames_decoded;
434  uint64_t samples_decoded;
435 
436  int64_t *dts_buffer;
438 
439  int got_output;
440 } InputStream;
441 
442 typedef struct LastFrameDuration {
444  int64_t duration;
446 
447 typedef struct InputFile {
448  const AVClass *class;
449 
450  int index;
451 
453  int eof_reached; /* true if eof reached */
454  int eagain; /* true if last read attempt returned EAGAIN */
457  /**
458  * Effective format start time based on enabled streams.
459  */
461  int64_t ts_offset;
462  /**
463  * Extra timestamp offset added by discontinuity handling.
464  */
466  int64_t last_ts;
467  int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
468  int64_t recording_time;
469 
470  /* streams that ffmpeg is aware of;
471  * there may be extra streams in ctx that are not mapped to an InputStream
472  * if new streams appear dynamically during demuxing */
475 
476  int rate_emu;
477  float readrate;
479 
480  /* when looping the input file, this queue is used by decoders to report
481  * the last frame duration back to the demuxer thread */
484 } InputFile;
485 
493 };
494 
495 #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
496 #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)
497 
517 };
518 
519 typedef struct EncStatsComponent {
521 
522  uint8_t *str;
523  size_t str_len;
525 
526 typedef struct EncStats {
529 
531 } EncStats;
532 
533 extern const char *const forced_keyframes_const_names[];
534 
535 typedef enum {
538 } OSTFinished ;
539 
540 enum {
543 };
544 
545 typedef struct KeyframeForceCtx {
546  int type;
547 
548  int64_t ref_pts;
549 
550  // timestamps of the forced keyframes, in AV_TIME_BASE_Q
551  int64_t *pts;
552  int nb_pts;
553  int index;
554 
557 
560 
561 typedef struct OutputStream {
562  const AVClass *class;
563 
564  int file_index; /* file index */
565  int index; /* stream index in the output file */
566 
567  /* input stream that is the source for this output stream;
568  * may be NULL for streams with no well-defined source, e.g.
569  * attachments or outputs from complex filtergraphs */
571 
572  AVStream *st; /* stream in the output file */
573  /* number of frames emitted by the video-encoding sync code */
575  /* predicted pts of the next frame to be encoded
576  * audio/video encoding only */
577  int64_t next_pts;
578  /* dts of the last packet sent to the muxing queue, in AV_TIME_BASE_Q */
579  int64_t last_mux_dts;
580  /* pts of the last frame received from the filters, in AV_TIME_BASE_Q */
582 
583  // timestamp from which the streamcopied streams should start,
584  // in AV_TIME_BASE_Q;
585  // everything before it should be discarded
586  int64_t ts_copy_start;
587 
588  // the timebase of the packets sent to the muxer
591 
597  int64_t last_dropped;
598  int64_t last_nb0_frames[3];
599 
600  /* video only */
604  int is_cfr;
607 #if FFMPEG_ROTATION_METADATA
609 #endif
611  int bitexact;
613 #if FFMPEG_ROTATION_METADATA
615 #endif
616 
618 
620 
621  /* audio only */
622 #if FFMPEG_OPT_MAP_CHANNEL
623  int *audio_channels_map; /* list of the channels id to pick from the source stream */
624  int audio_channels_mapped; /* number of channels in audio_channels_map */
625 #endif
626 
628  FILE *logfile;
629 
631  char *avfilter;
632  char *filters; ///< filtergraph associated to the -filter option
633  char *filters_script; ///< filtergraph script associated to the -filter_script option
634 
638  char *apad;
639  OSTFinished finished; /* no more packets should be written for this stream */
640  int unavailable; /* true if the steram is unavailable (possibly temporarily) */
641 
642  // init_output_stream() has been called for this stream
643  // The encoder and the bitstream filters have been initialized and the stream
644  // parameters are set in the AVStream.
646 
648 
649  const char *attachment_filename;
653 
655 
656  /* stats */
657  // combined size of all the packets sent to the muxer
658  uint64_t data_size_mux;
659  // combined size of all the packets received from the encoder
660  uint64_t data_size_enc;
661  // number of packets send to the muxer
663  // number of frames/samples sent to the encoder
664  uint64_t frames_encoded;
665  uint64_t samples_encoded;
666  // number of packets received from the encoder
667  uint64_t packets_encoded;
668 
669  /* packet quality factor */
670  int quality;
671 
672  /* packet picture type */
674 
675  /* frame encode sum of squared error values */
676  int64_t error[4];
677 
680 
683 
684  /*
685  * bool on whether this stream should be utilized for splitting
686  * subtitles utilizing fix_sub_duration at random access points.
687  */
689 } OutputStream;
690 
691 typedef struct OutputFile {
692  const AVClass *class;
693 
694  int index;
695 
697  const char *url;
698 
701 
703 
704  int64_t recording_time; ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
705  int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
706 
707  int shortest;
708  int bitexact;
709 } OutputFile;
710 
711 extern InputFile **input_files;
712 extern int nb_input_files;
713 
714 extern OutputFile **output_files;
715 extern int nb_output_files;
716 
717 extern FilterGraph **filtergraphs;
718 extern int nb_filtergraphs;
719 
720 extern char *vstats_filename;
721 extern char *sdp_filename;
722 
723 extern float audio_drift_threshold;
724 extern float dts_delta_threshold;
725 extern float dts_error_threshold;
726 
728 extern float frame_drop_threshold;
729 extern int do_benchmark;
730 extern int do_benchmark_all;
731 extern int do_hex_dump;
732 extern int do_pkt_dump;
733 extern int copy_ts;
734 extern int start_at_zero;
735 extern int copy_tb;
736 extern int debug_ts;
737 extern int exit_on_error;
738 extern int abort_on_flags;
739 extern int print_stats;
740 extern int64_t stats_period;
741 extern int qp_hist;
742 extern int stdin_interaction;
743 extern AVIOContext *progress_avio;
744 extern float max_error_rate;
745 
746 extern char *filter_nbthreads;
747 extern int filter_complex_nbthreads;
748 extern int vstats_version;
749 extern int auto_conversion_filters;
750 
751 extern const AVIOInterruptCB int_cb;
752 
753 extern const OptionDef options[];
754 extern HWDevice *filter_hw_device;
755 
756 extern unsigned nb_output_dumped;
757 extern int main_return_code;
758 
759 extern int ignore_unknown_streams;
760 extern int copy_unknown_streams;
761 
762 extern int recast_media;
763 
764 #if FFMPEG_OPT_PSNR
765 extern int do_psnr;
766 #endif
767 
768 void term_init(void);
769 void term_exit(void);
770 
771 void show_usage(void);
772 
775 
776 void assert_file_overwrite(const char *filename);
777 char *file_read(const char *filename);
779 const AVCodec *find_codec_or_die(void *logctx, const char *name,
780  enum AVMediaType type, int encoder);
781 int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global);
782 
784 void check_filter_outputs(void);
788 
789 void sub2video_update(InputStream *ist, int64_t heartbeat_pts, AVSubtitle *sub);
790 
792 
793 int ffmpeg_parse_options(int argc, char **argv);
794 
796  const AVFrame *frame, const AVPacket *pkt,
797  uint64_t frame_num);
798 
799 HWDevice *hw_device_get_by_name(const char *name);
800 int hw_device_init_from_string(const char *arg, HWDevice **dev);
801 void hw_device_free_all(void);
802 
806 
808 
809 /*
810  * Initialize muxing state for the given stream, should be called
811  * after the codec/streamcopy setup has been done.
812  *
813  * Open the muxer once all the streams have been initialized.
814  */
817 int of_open(const OptionsContext *o, const char *filename);
818 void of_close(OutputFile **pof);
819 
820 void of_enc_stats_close(void);
821 
822 /*
823  * Send a single packet to the output, applying any bitstream filters
824  * associated with the output stream. This may result in any number
825  * of packets actually being written, depending on what bitstream
826  * filters are applied. The supplied packet is consumed and will be
827  * blank (as if newly-allocated) when this function returns.
828  *
829  * If eof is set, instead indicate EOF to all bitstream filters and
830  * therefore flush any delayed packets to the output. A blank packet
831  * must be supplied in this case.
832  */
833 void of_output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int eof);
834 int64_t of_filesize(OutputFile *of);
835 
836 int ifile_open(const OptionsContext *o, const char *filename);
837 void ifile_close(InputFile **f);
838 
839 /**
840  * Get next input packet from the demuxer.
841  *
842  * @param pkt the packet is written here when this function returns 0
843  * @return
844  * - 0 when a packet has been read successfully
845  * - 1 when stream end was reached, but the stream is looped;
846  * caller should flush decoders and read from this demuxer again
847  * - a negative error code on failure
848  */
850 
851 /* iterate over all input streams in all input files;
852  * pass NULL to start iteration */
854 
855 #define SPECIFIER_OPT_FMT_str "%s"
856 #define SPECIFIER_OPT_FMT_i "%i"
857 #define SPECIFIER_OPT_FMT_i64 "%"PRId64
858 #define SPECIFIER_OPT_FMT_ui64 "%"PRIu64
859 #define SPECIFIER_OPT_FMT_f "%f"
860 #define SPECIFIER_OPT_FMT_dbl "%lf"
861 
862 #define WARN_MULTIPLE_OPT_USAGE(name, type, so, st)\
863 {\
864  char namestr[128] = "";\
865  const char *spec = so->specifier && so->specifier[0] ? so->specifier : "";\
866  for (int _i = 0; opt_name_##name[_i]; _i++)\
867  av_strlcatf(namestr, sizeof(namestr), "-%s%s", opt_name_##name[_i], opt_name_##name[_i+1] ? (opt_name_##name[_i+2] ? ", " : " or ") : "");\
868  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",\
869  namestr, st->index, opt_name_##name[0], spec[0] ? ":" : "", spec, so->u.type);\
870 }
871 
872 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
873 {\
874  int _ret, _matches = 0;\
875  SpecifierOpt *so;\
876  for (int _i = 0; _i < o->nb_ ## name; _i++) {\
877  char *spec = o->name[_i].specifier;\
878  if ((_ret = check_stream_specifier(fmtctx, st, spec)) > 0) {\
879  outvar = o->name[_i].u.type;\
880  so = &o->name[_i];\
881  _matches++;\
882  } else if (_ret < 0)\
883  exit_program(1);\
884  }\
885  if (_matches > 1)\
886  WARN_MULTIPLE_OPT_USAGE(name, type, so, st);\
887 }
888 
889 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
890 {\
891  int i;\
892  for (i = 0; i < o->nb_ ## name; i++) {\
893  char *spec = o->name[i].specifier;\
894  if (!strcmp(spec, mediatype))\
895  outvar = o->name[i].u.type;\
896  }\
897 }
898 
899 extern const char * const opt_name_codec_names[];
900 extern const char * const opt_name_codec_tags[];
901 extern const char * const opt_name_frame_rates[];
902 extern const char * const opt_name_top_field_first[];
903 
904 #endif /* FFTOOLS_FFMPEG_H */
OptionsContext::readrate
float readrate
Definition: ffmpeg.h:126
AVSubtitle
Definition: avcodec.h:2342
OptionsContext::nb_hwaccels
int nb_hwaccels
Definition: ffmpeg.h:137
KeyframeForceCtx::pts
int64_t * pts
Definition: ffmpeg.h:551
OptionsContext::nb_codec_names
int nb_codec_names
Definition: ffmpeg.h:106
InputFilter::sample_aspect_ratio
AVRational sample_aspect_ratio
Definition: ffmpeg.h:284
AVCodec
AVCodec.
Definition: codec.h:184
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:2207
OptionsContext::enc_stats_post_fmt
SpecifierOpt * enc_stats_post_fmt
Definition: ffmpeg.h:265
InputFile::start_time
int64_t start_time
Definition: ffmpeg.h:467
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:558
OutputStream::sq_idx_mux
int sq_idx_mux
Definition: ffmpeg.h:679
OutputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:298
FKF_PREV_FORCED_T
@ FKF_PREV_FORCED_T
Definition: ffmpeg.h:490
OptionsContext::canvas_sizes
SpecifierOpt * canvas_sizes
Definition: ffmpeg.h:229
InputStream::hwaccel_device
char * hwaccel_device
Definition: ffmpeg.h:421
VSYNC_VFR
@ VSYNC_VFR
Definition: ffmpeg.h:62
EncStatsComponent::type
enum EncStatsType type
Definition: ffmpeg.h:520
OptionsContext::dump_attachment
SpecifierOpt * dump_attachment
Definition: ffmpeg.h:134
OutputStream::attachment_filename
const char * attachment_filename
Definition: ffmpeg.h:649
OutputFilter::ch_layouts
const AVChannelLayout * ch_layouts
Definition: ffmpeg.h:315
configure_filtergraph
int configure_filtergraph(FilterGraph *fg)
Definition: ffmpeg_filter.c:1115
OutputStream::ts_copy_start
int64_t ts_copy_start
Definition: ffmpeg.h:586
OptionsContext::nb_audio_sample_rate
int nb_audio_sample_rate
Definition: ffmpeg.h:112
nb_filtergraphs
int nb_filtergraphs
Definition: ffmpeg.c:150
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:360
InputFilter::width
int width
Definition: ffmpeg.h:283
OptionsContext::nb_time_bases
int nb_time_bases
Definition: ffmpeg.h:250
InputFilter::displaymatrix
int32_t * displaymatrix
Definition: ffmpeg.h:290
ENC_STATS_PTS
@ ENC_STATS_PTS
Definition: ffmpeg.h:506
OptionsContext::nb_mux_stats
int nb_mux_stats
Definition: ffmpeg.h:262
ENC_STATS_FRAME_NUM_IN
@ ENC_STATS_FRAME_NUM_IN
Definition: ffmpeg.h:503
KF_FORCE_SOURCE_NO_DROP
@ KF_FORCE_SOURCE_NO_DROP
Definition: ffmpeg.h:542
FKF_PREV_FORCED_N
@ FKF_PREV_FORCED_N
Definition: ffmpeg.h:489
OptionsContext::nb_audio_ch_layouts
int nb_audio_ch_layouts
Definition: ffmpeg.h:108
FilterGraph::graph_desc
const char * graph_desc
Definition: ffmpeg.h:321
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:429
OutputStream::enc_ctx
AVCodecContext * enc_ctx
Definition: ffmpeg.h:592
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:329
ENC_STATS_DTS
@ ENC_STATS_DTS
Definition: ffmpeg.h:510
OptionsContext::hwaccels
SpecifierOpt * hwaccels
Definition: ffmpeg.h:136
OptionsContext::apad
SpecifierOpt * apad
Definition: ffmpeg.h:241
KeyframeForceCtx::nb_pts
int nb_pts
Definition: ffmpeg.h:552
frame_drop_threshold
float frame_drop_threshold
Definition: ffmpeg_opt.c:71
rational.h
InputStream::dec_ctx
AVCodecContext * dec_ctx
Definition: ffmpeg.h:355
InputStream::user_set_discard
int user_set_discard
Definition: ffmpeg.h:341
OptionsContext::rc_overrides
SpecifierOpt * rc_overrides
Definition: ffmpeg.h:201
OutputStream::packets_written
atomic_uint_least64_t packets_written
Definition: ffmpeg.h:662
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:516
InputFile::readrate
float readrate
Definition: ffmpeg.h:477
OutputStream::keep_pix_fmt
int keep_pix_fmt
Definition: ffmpeg.h:654
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:705
OptionsContext::frame_aspect_ratios
SpecifierOpt * frame_aspect_ratios
Definition: ffmpeg.h:193
progress_avio
AVIOContext * progress_avio
Definition: ffmpeg.c:141
InputFile::index
int index
Definition: ffmpeg.h:450
InputFilter::ch_layout
AVChannelLayout ch_layout
Definition: ffmpeg.h:287
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:476
of_filesize
int64_t of_filesize(OutputFile *of)
Definition: ffmpeg_mux.c:747
OutputStream::unavailable
int unavailable
Definition: ffmpeg.h:640
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:232
OutputStream::rotate_overridden
int rotate_overridden
Definition: ffmpeg.h:608
FKF_T
@ FKF_T
Definition: ffmpeg.h:491
sync_queue.h
LastFrameDuration::stream_idx
int stream_idx
Definition: ffmpeg.h:443
ENC_STATS_LITERAL
@ ENC_STATS_LITERAL
Definition: ffmpeg.h:499
OptionsContext::subtitle_disable
int subtitle_disable
Definition: ffmpeg.h:168
OptionsContext::nb_apad
int nb_apad
Definition: ffmpeg.h:242
OptionsContext::qscale
SpecifierOpt * qscale
Definition: ffmpeg.h:185
OutputStream::index
int index
Definition: ffmpeg.h:565
b
#define b
Definition: input.c:41
FilterGraph::index
int index
Definition: ffmpeg.h:320
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:546
InputStream::nb_filters
int nb_filters
Definition: ffmpeg.h:414
int_cb
const AVIOInterruptCB int_cb
Definition: ffmpeg.c:500
OutputStream::sws_dict
AVDictionary * sws_dict
Definition: ffmpeg.h:636
nb_output_files
int nb_output_files
Definition: ffmpeg.c:147
show_usage
void show_usage(void)
Definition: ffmpeg_opt.c:1206
FilterGraph::nb_inputs
int nb_inputs
Definition: ffmpeg.h:330
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:144
enc_stats_write
void enc_stats_write(OutputStream *ost, EncStats *es, const AVFrame *frame, const AVPacket *pkt, uint64_t frame_num)
Definition: ffmpeg.c:811
LastFrameDuration
Definition: ffmpeg.h:442
InputStream::decoding_needed
int decoding_needed
Definition: ffmpeg.h:342
OptionsContext::format
const char * format
Definition: ffmpeg.h:103
InputFile::input_sync_ref
int input_sync_ref
Definition: ffmpeg.h:456
OutputStream::rotate_override_value
double rotate_override_value
Definition: ffmpeg.h:614
ost
static AVStream * ost
Definition: vaapi_transcode.c:42
OutputStream::last_dropped
int64_t last_dropped
Definition: ffmpeg.h:597
OptionsContext::nb_disposition
int nb_disposition
Definition: ffmpeg.h:246
OutputStream::fix_sub_duration_heartbeat
unsigned int fix_sub_duration_heartbeat
Definition: ffmpeg.h:688
qp_hist
int qp_hist
Definition: ffmpeg_opt.c:83
OutputStream::ist
InputStream * ist
Definition: ffmpeg.h:570
ENC_STATS_TIMEBASE_IN
@ ENC_STATS_TIMEBASE_IN
Definition: ffmpeg.h:505
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:273
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:240
OutputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:700
InputFile::eof_reached
int eof_reached
Definition: ffmpeg.h:453
OutputStream::sq_frame
AVFrame * sq_frame
Definition: ffmpeg.h:595
InputStream
Definition: ffmpeg.h:335
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:603
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:483
OutputStream::filters
char * filters
filtergraph associated to the -filter option
Definition: ffmpeg.h:632
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:645
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:574
InputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:276
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:627
EncStatsComponent::str_len
size_t str_len
Definition: ffmpeg.h:523
OptionsContext::nb_top_field_first
int nb_top_field_first
Definition: ffmpeg.h:210
OutputStream::next_pts
int64_t next_pts
Definition: mux.c:58
InputStream::decoder_opts
AVDictionary * decoder_opts
Definition: ffmpeg.h:389
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:380
KeyframeForceCtx::ref_pts
int64_t ref_pts
Definition: ffmpeg.h:548
OptionsContext::nb_reinit_filters
int nb_reinit_filters
Definition: ffmpeg.h:224
InputStream::nb_packets
uint64_t nb_packets
Definition: ffmpeg.h:431
OutputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:309
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:629
OptionsContext::time_bases
SpecifierOpt * time_bases
Definition: ffmpeg.h:249
InputStream::sub2video::last_pts
int64_t last_pts
Definition: ffmpeg.h:403
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:447
OptionsContext::recording_time
int64_t recording_time
Definition: ffmpeg.h:157
input_files
InputFile ** input_files
Definition: ffmpeg.c:143
InputStream::last_pkt_repeat_pict
int last_pkt_repeat_pict
Definition: ffmpeg.h:378
OptionsContext::pass
SpecifierOpt * pass
Definition: ffmpeg.h:231
OutputStream::copy_initial_nonkeyframes
int copy_initial_nonkeyframes
Definition: ffmpeg.h:651
OutputFilter::sample_rates
const int * sample_rates
Definition: ffmpeg.h:316
InputFile::ts_offset_discont
int64_t ts_offset_discont
Extra timestamp offset added by discontinuity handling.
Definition: ffmpeg.h:465
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:367
InputStream::hwaccel_pix_fmt
enum AVPixelFormat hwaccel_pix_fmt
Definition: ffmpeg.h:425
OutputFile::shortest
int shortest
Definition: ffmpeg.h:707
InputStream::dts
int64_t dts
dts of the last packet read for this stream (in AV_TIME_BASE units)
Definition: ffmpeg.h:368
OptionsContext::enc_stats_post
SpecifierOpt * enc_stats_post
Definition: ffmpeg.h:259
OptionsContext::nb_enc_stats_pre_fmt
int nb_enc_stats_pre_fmt
Definition: ffmpeg.h:264
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
ENC_STATS_PTS_IN
@ ENC_STATS_PTS_IN
Definition: ffmpeg.h:508
term_init
void term_init(void)
Definition: ffmpeg.c:395
OptionsContext::nb_program
int nb_program
Definition: ffmpeg.h:248
StreamMap::linklabel
char * linklabel
Definition: ffmpeg.h:86
OutputFilter::width
int width
Definition: ffmpeg.h:306
HWACCEL_GENERIC
@ HWACCEL_GENERIC
Definition: ffmpeg.h:72
VSYNC_VSCFR
@ VSYNC_VSCFR
Definition: ffmpeg.h:63
EncStats::components
EncStatsComponent * components
Definition: ffmpeg.h:527
InputStream::cfr_next_pts
int64_t cfr_next_pts
Definition: ffmpeg.h:384
s
#define s(width, name)
Definition: cbs_vp9.c:256
FilterGraph::outputs
OutputFilter ** outputs
Definition: ffmpeg.h:331
vstats_filename
char * vstats_filename
Definition: ffmpeg_opt.c:63
OutputStream::frame_aspect_ratio
AVRational frame_aspect_ratio
Definition: ffmpeg.h:617
InputStream::framerate
AVRational framerate
Definition: ffmpeg.h:390
do_psnr
int do_psnr
Definition: ffmpeg_opt.c:96
OutputStream::mux_timebase
AVRational mux_timebase
Definition: ffmpeg.h:589
OptionsContext::nb_bits_per_raw_sample
int nb_bits_per_raw_sample
Definition: ffmpeg.h:256
ENC_STATS_FILE_IDX
@ ENC_STATS_FILE_IDX
Definition: ffmpeg.h:500
ENCODER_FINISHED
@ ENCODER_FINISHED
Definition: ffmpeg.h:536
OptionsContext::limit_filesize
int64_t limit_filesize
Definition: ffmpeg.h:159
OutputStream::audio_channels_mapped
int audio_channels_mapped
Definition: ffmpeg.h:624
InputFilter
Definition: ffmpeg.h:271
OutputStream::copy_prior_start
int copy_prior_start
Definition: ffmpeg.h:652
OptionsContext::audio_ch_layouts
SpecifierOpt * audio_ch_layouts
Definition: ffmpeg.h:107
ENC_STATS_BITRATE
@ ENC_STATS_BITRATE
Definition: ffmpeg.h:515
AVHWDeviceType
AVHWDeviceType
Definition: hwcontext.h:27
OutputFilter::ost
struct OutputStream * ost
Definition: ffmpeg.h:297
OptionsContext::nb_enc_stats_post
int nb_enc_stats_post
Definition: ffmpeg.h:260
forced_keyframes_const
forced_keyframes_const
Definition: ffmpeg.h:486
ignore_unknown_streams
int ignore_unknown_streams
Definition: ffmpeg_opt.c:98
MUXER_FINISHED
@ MUXER_FINISHED
Definition: ffmpeg.h:537
OutputStream::avfilter
char * avfilter
Definition: ffmpeg.h:631
audio_drift_threshold
float audio_drift_threshold
Definition: ffmpeg_opt.c:66
InputStream::filters
InputFilter ** filters
Definition: ffmpeg.h:413
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:424
InputFilter::graph
struct FilterGraph * graph
Definition: ffmpeg.h:274
AVThreadMessageQueue
Definition: threadmessage.c:27
OptionsContext::accurate_seek
int accurate_seek
Definition: ffmpeg.h:127
OutputStream::last_frame
AVFrame * last_frame
Definition: ffmpeg.h:594
OutputStream::enc_stats_pre
EncStats enc_stats_pre
Definition: ffmpeg.h:681
OptionsContext::nb_canvas_sizes
int nb_canvas_sizes
Definition: ffmpeg.h:230
OptionsContext::nb_max_muxing_queue_size
int nb_max_muxing_queue_size
Definition: ffmpeg.h:236
OutputStream::bitexact
int bitexact
Definition: ffmpeg.h:611
arg
const char * arg
Definition: jacosubdec.c:67
KeyframeForceCtx::expr_const_values
double expr_const_values[FKF_NB]
Definition: ffmpeg.h:556
of_enc_stats_close
void of_enc_stats_close(void)
Definition: ffmpeg_mux_init.c:218
OutputStream::streamcopy_started
int streamcopy_started
Definition: ffmpeg.h:650
OutputStream::encoder_opts
AVDictionary * encoder_opts
Definition: ffmpeg.h:635
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:371
AVFormatContext
Format I/O context.
Definition: avformat.h:1104
OutputFilter::height
int height
Definition: ffmpeg.h:306
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:299
InputStream::sub2video::w
int w
Definition: ffmpeg.h:407
InputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:391
InputStream::st
AVStream * st
Definition: ffmpeg.h:339
OptionsContext::nb_fix_sub_duration_heartbeat
int nb_fix_sub_duration_heartbeat
Definition: ffmpeg.h:228
forced_keyframes_const_names
const char *const forced_keyframes_const_names[]
Definition: ffmpeg_mux_init.c:2030
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:460
ENC_STATS_PTS_TIME
@ ENC_STATS_PTS_TIME
Definition: ffmpeg.h:507
of_close
void of_close(OutputFile **pof)
Definition: ffmpeg_mux.c:720
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:370
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:623
InputStream::hwaccel_id
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:419
EncStats
Definition: ffmpeg.h:526
OutputStream::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:601
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:436
InputFilter::eof
int eof
Definition: ffmpeg.h:292
InputStream::fix_sub_duration
int fix_sub_duration
Definition: ffmpeg.h:395
OutputStream::top_field_first
int top_field_first
Definition: ffmpeg.h:606
InputStream::hwaccel_output_format
enum AVPixelFormat hwaccel_output_format
Definition: ffmpeg.h:422
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:855
do_benchmark_all
int do_benchmark_all
Definition: ffmpeg_opt.c:73
filtergraphs
FilterGraph ** filtergraphs
Definition: ffmpeg.c:149
OptionsContext::nb_display_hflips
int nb_display_hflips
Definition: ffmpeg.h:198
OptionsContext::input_sync_ref
int input_sync_ref
Definition: ffmpeg.h:129
OutputFile::index
int index
Definition: ffmpeg.h:694
OptionGroup
Definition: cmdutils.h:250
OptionsContext::program
SpecifierOpt * program
Definition: ffmpeg.h:247
OptionsContext::nb_enc_stats_pre
int nb_enc_stats_pre
Definition: ffmpeg.h:258
InputStream::sub2video::sub_queue
AVFifo * sub_queue
queue of AVSubtitle* before filter init
Definition: ffmpeg.h:405
ENC_STATS_PTS_TIME_IN
@ ENC_STATS_PTS_TIME_IN
Definition: ffmpeg.h:509
FilterGraph::nb_outputs
int nb_outputs
Definition: ffmpeg.h:332
OutputStream::logfile
FILE * logfile
Definition: ffmpeg.h:628
swresample.h
InputStream::sub2video::initialize
unsigned int initialize
marks if sub2video_update should force an initialization
Definition: ffmpeg.h:408
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:354
OptionsContext::nb_filters
int nb_filters
Definition: ffmpeg.h:220
OutputFile::streams
OutputStream ** streams
Definition: ffmpeg.h:699
InputStream::frames_decoded
uint64_t frames_decoded
Definition: ffmpeg.h:433
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:366
FilterGraph
Definition: ffmpeg.h:319
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:272
nb_output_dumped
unsigned nb_output_dumped
Definition: ffmpeg.c:138
options
const OptionDef options[]
VideoSyncMethod
VideoSyncMethod
Definition: ffmpeg.h:58
eval.h
OutputStream::force_fps
int force_fps
Definition: ffmpeg.h:605
OptionsContext::nb_frame_aspect_ratios
int nb_frame_aspect_ratios
Definition: ffmpeg.h:194
OutputStream::filter
OutputFilter * filter
Definition: ffmpeg.h:630
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:228
InputStream::hwaccel_device_type
enum AVHWDeviceType hwaccel_device_type
Definition: ffmpeg.h:420
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:357
AVFifo
Definition: fifo.c:35
InputStream::wrap_correction_done
int wrap_correction_done
Definition: ffmpeg.h:372
InputStream::start
int64_t start
Definition: ffmpeg.h:363
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:676
InputStream::file_index
int file_index
Definition: ffmpeg.h:338
OutputStream::data_size_enc
uint64_t data_size_enc
Definition: ffmpeg.h:660
InputFile::last_ts
int64_t last_ts
Definition: ffmpeg.h:466
FilterGraph::graph
AVFilterGraph * graph
Definition: ffmpeg.h:323
EncStatsType
EncStatsType
Definition: ffmpeg.h:498
InputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:358
InputStream::got_output
int got_output
Definition: ffmpeg.h:397
StreamMap
Definition: ffmpeg.h:82
ENC_STATS_NB_SAMPLES
@ ENC_STATS_NB_SAMPLES
Definition: ffmpeg.h:513
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:667
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:697
OptionsContext::nb_discard
int nb_discard
Definition: ffmpeg.h:244
OSTFinished
OSTFinished
Definition: ffmpeg.h:535
OutputFilter::filter
AVFilterContext * filter
Definition: ffmpeg.h:296
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:434
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:801
OptionsContext::metadata
SpecifierOpt * metadata
Definition: ffmpeg.h:175
OutputStream::kf
KeyframeForceCtx kf
Definition: ffmpeg.h:619
do_benchmark
int do_benchmark
Definition: ffmpeg_opt.c:72
OptionsContext::nb_autoscale
int nb_autoscale
Definition: ffmpeg.h:254
OutputFile::sq_encode
SyncQueue * sq_encode
Definition: ffmpeg.h:702
KF_FORCE_SOURCE
@ KF_FORCE_SOURCE
Definition: ffmpeg.h:541
OutputStream::pict_type
int pict_type
Definition: ffmpeg.h:673
OptionsContext::frame_rates
SpecifierOpt * frame_rates
Definition: ffmpeg.h:113
ENC_STATS_FRAME_NUM
@ ENC_STATS_FRAME_NUM
Definition: ffmpeg.h:502
KeyframeForceCtx
Definition: ffmpeg.h:545
OutputFilter::type
enum AVMediaType type
Definition: ffmpeg.h:303
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:602
OutputStream::filters_script
char * filters_script
filtergraph script associated to the -filter_script option
Definition: ffmpeg.h:633
OutputStream::pkt
AVPacket * pkt
Definition: ffmpeg.h:596
OutputStream::apad
char * apad
Definition: ffmpeg.h:638
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:470
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:329
AVOutputFormat
Definition: avformat.h:507
OptionsContext::mux_stats_fmt
SpecifierOpt * mux_stats_fmt
Definition: ffmpeg.h:267
OutputStream::data_size_mux
uint64_t data_size_mux
Definition: ffmpeg.h:658
OptionsContext::metadata_map
SpecifierOpt * metadata_map
Definition: ffmpeg.h:211
InputStream::ret
int ret
Definition: ffmpeg.h:398
InputStream::want_frame_data
int want_frame_data
Definition: ffmpeg.h:347
OptionsContext::enc_stats_pre
SpecifierOpt * enc_stats_pre
Definition: ffmpeg.h:257
StreamMap::stream_index
int stream_index
Definition: ffmpeg.h:85
OptionsContext::nb_qscale
int nb_qscale
Definition: ffmpeg.h:186
OptionsContext::mux_stats
SpecifierOpt * mux_stats
Definition: ffmpeg.h:261
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:708
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:146
OutputStream::last_nb0_frames
int64_t last_nb0_frames[3]
Definition: ffmpeg.h:598
OptionsContext::nb_frame_pix_fmts
int nb_frame_pix_fmts
Definition: ffmpeg.h:120
InputStream::processing_needed
int processing_needed
Definition: ffmpeg.h:345
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:452
InputFile::accurate_seek
int accurate_seek
Definition: ffmpeg.h:478
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:501
OptionsContext::bits_per_raw_sample
SpecifierOpt * bits_per_raw_sample
Definition: ffmpeg.h:255
ENC_STATS_SAMPLE_NUM
@ ENC_STATS_SAMPLE_NUM
Definition: ffmpeg.h:512
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:468
avcodec.h
OptionsContext::passlogfiles
SpecifierOpt * passlogfiles
Definition: ffmpeg.h:233
SpecifierOpt
Definition: cmdutils.h:134
OptionsContext::autoscale
SpecifierOpt * autoscale
Definition: ffmpeg.h:253
AVStream
Stream structure.
Definition: avformat.h:838
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:275
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:310
OptionsContext::audio_channel_maps
AudioChannelMap * audio_channel_maps
Definition: ffmpeg.h:149
InputFile::streams
InputStream ** streams
Definition: ffmpeg.h:473
InputStream::reinit_filters
int reinit_filters
Definition: ffmpeg.h:416
hw_device_free_all
void hw_device_free_all(void)
Definition: ffmpeg_hw.c:288
avformat.h
InputFile::eagain
int eagain
Definition: ffmpeg.h:454
HWAccelID
HWAccelID
Definition: ffmpeg.h:69
dict.h
OptionsContext::nb_mux_stats_fmt
int nb_mux_stats_fmt
Definition: ffmpeg.h:268
OptionsContext::nb_sample_fmts
int nb_sample_fmts
Definition: ffmpeg.h:184
InputFilter::sample_rate
int sample_rate
Definition: ffmpeg.h:286
OptionsContext::nb_enc_time_bases
int nb_enc_time_bases
Definition: ffmpeg.h:252
SyncQueue
Definition: sync_queue.c:45
ifile_close
void ifile_close(InputFile **f)
Definition: ffmpeg_demux.c:505
OptionsContext::nb_max_frames
int nb_max_frames
Definition: ffmpeg.h:178
OptionsContext::disposition
SpecifierOpt * disposition
Definition: ffmpeg.h:245
ifilter_parameters_from_frame
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame)
Definition: ffmpeg_filter.c:1278
OutputFilter::format
int format
Definition: ffmpeg.h:308
ifile_open
int ifile_open(const OptionsContext *o, const char *filename)
Definition: ffmpeg_demux.c:927
filter_hw_device
HWDevice * filter_hw_device
Definition: ffmpeg_opt.c:61
AVCodecContext
main external API structure.
Definition: avcodec.h:426
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:281
OutputStream::finished
OSTFinished finished
Definition: ffmpeg.h:639
OptionsContext::nb_audio_channels
int nb_audio_channels
Definition: ffmpeg.h:110
InputStream::prev_pkt_pts
int64_t prev_pkt_pts
Definition: ffmpeg.h:362
OptionsContext::fix_sub_duration_heartbeat
SpecifierOpt * fix_sub_duration_heartbeat
Definition: ffmpeg.h:227
InputFile::audio_duration_queue
AVThreadMessageQueue * audio_duration_queue
Definition: ffmpeg.h:482
OptionsContext::guess_layout_max
SpecifierOpt * guess_layout_max
Definition: ffmpeg.h:239
KeyframeForceCtx::index
int index
Definition: ffmpeg.h:553
OptionsContext::enc_time_bases
SpecifierOpt * enc_time_bases
Definition: ffmpeg.h:251
avfilter.h
OutputFilter::formats
const int * formats
Definition: ffmpeg.h:314
FilterGraph::is_meta
int is_meta
Definition: ffmpeg.h:327
OutputStream::last_mux_dts
int64_t last_mux_dts
Definition: ffmpeg.h:579
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:670
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:612
OptionsContext::max_frame_rates
SpecifierOpt * max_frame_rates
Definition: ffmpeg.h:115
OutputStream::enc_stats_post
EncStats enc_stats_post
Definition: ffmpeg.h:682
InputStream::nb_samples
int64_t nb_samples
Definition: ffmpeg.h:386
InputFilter::height
int height
Definition: ffmpeg.h:283
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:664
HWACCEL_NONE
@ HWACCEL_NONE
Definition: ffmpeg.h:70
InputFile::ts_offset
int64_t ts_offset
Definition: ffmpeg.h:461
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:340
OptionsContext::max_muxing_queue_size
SpecifierOpt * max_muxing_queue_size
Definition: ffmpeg.h:235
AVFilterContext
An instance of a filter.
Definition: avfilter.h:392
remove_avoptions
void remove_avoptions(AVDictionary **a, AVDictionary *b)
Definition: ffmpeg.c:620
VSYNC_AUTO
@ VSYNC_AUTO
Definition: ffmpeg.h:59
OutputFilter
Definition: ffmpeg.h:295
InputStream::sub2video::frame
AVFrame * frame
Definition: ffmpeg.h:406
OptionsContext::nb_muxing_queue_data_threshold
int nb_muxing_queue_data_threshold
Definition: ffmpeg.h:238
OptionsContext::nb_inter_matrices
int nb_inter_matrices
Definition: ffmpeg.h:206
OutputStream::last_filter_pts
int64_t last_filter_pts
Definition: ffmpeg.h:581
OptionsContext::enc_stats_pre_fmt
SpecifierOpt * enc_stats_pre_fmt
Definition: ffmpeg.h:263
OptionsContext::muxing_queue_data_threshold
SpecifierOpt * muxing_queue_data_threshold
Definition: ffmpeg.h:237
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:564
OptionsContext::copy_prior_start
SpecifierOpt * copy_prior_start
Definition: ffmpeg.h:217
InputStream::sub2video
Definition: ffmpeg.h:402
ist_iter
InputStream * ist_iter(InputStream *prev)
Definition: ffmpeg.c:604
OptionsContext::fps_mode
SpecifierOpt * fps_mode
Definition: ffmpeg.h:189
OutputFilter::out_tmp
AVFilterInOut * out_tmp
Definition: ffmpeg.h:302
auto_conversion_filters
int auto_conversion_filters
Definition: ffmpeg_opt.c:89
InputStream::sub2video::h
int h
Definition: ffmpeg.h:407
OptionsContext::nb_passlogfiles
int nb_passlogfiles
Definition: ffmpeg.h:234
KeyframeForceCtx::pexpr
AVExpr * pexpr
Definition: ffmpeg.h:555
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:604
OutputStream::autoscale
int autoscale
Definition: ffmpeg.h:610
InputFilter::hw_frames_ctx
AVBufferRef * hw_frames_ctx
Definition: ffmpeg.h:289
FKF_N_FORCED
@ FKF_N_FORCED
Definition: ffmpeg.h:488
OptionsContext::attachments
const char ** attachments
Definition: ffmpeg.h:152
InputStream::sub2video::end_pts
int64_t end_pts
Definition: ffmpeg.h:404
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:266
LastFrameDuration::duration
int64_t duration
Definition: ffmpeg.h:444
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:334
EncStatsComponent
Definition: ffmpeg.h:519
OptionsContext::chroma_intra_matrices
SpecifierOpt * chroma_intra_matrices
Definition: ffmpeg.h:207
FilterGraph::reconfiguration
int reconfiguration
Definition: ffmpeg.h:324
HWDevice::type
enum AVHWDeviceType type
Definition: ffmpeg.h:77
cmdutils.h
InputFile::input_ts_offset
int64_t input_ts_offset
Definition: ffmpeg.h:455
file_read
char * file_read(const char *filename)
Definition: ffmpeg_opt.c:700
EncStats::nb_components
int nb_components
Definition: ffmpeg.h:528
OptionsContext::data_disable
int data_disable
Definition: ffmpeg.h:169
InputStream::dts_buffer
int64_t * dts_buffer
Definition: ffmpeg.h:436
InputFilter::frame_queue
AVFifo * frame_queue
Definition: ffmpeg.h:278
int32_t
int32_t
Definition: audioconvert.c:56
FKF_NB
@ FKF_NB
Definition: ffmpeg.h:492
ENC_STATS_PKT_SIZE
@ ENC_STATS_PKT_SIZE
Definition: ffmpeg.h:514
OutputStream
Definition: mux.c:53
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:678
OutputStream::st
AVStream * st
Definition: mux.c:54
EncStatsComponent::str
uint8_t * str
Definition: ffmpeg.h:522
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:696
InputStream::nb_dts_buffer
int nb_dts_buffer
Definition: ffmpeg.h:437
InputStream::saw_first_ts
int saw_first_ts
Definition: ffmpeg.h:388
OutputStream::swr_opts
AVDictionary * swr_opts
Definition: ffmpeg.h:637
OutputFilter::frame_rate
AVRational frame_rate
Definition: ffmpeg.h:307
OutputStream::filtered_frame
AVFrame * filtered_frame
Definition: ffmpeg.h:593
InputFile::nb_streams
int nb_streams
Definition: ffmpeg.h:474
opt_name_codec_tags
const char *const opt_name_codec_tags[]
Definition: ffmpeg_opt.c:58
FKF_N
@ FKF_N
Definition: ffmpeg.h:487
ENC_STATS_DTS_TIME
@ ENC_STATS_DTS_TIME
Definition: ffmpeg.h:511
OutputFile::recording_time
int64_t recording_time
desired length of the resulting file in microseconds == AV_TIME_BASE units
Definition: ffmpeg.h:704
int
int
Definition: ffmpeg_filter.c:156
OutputStream::samples_encoded
uint64_t samples_encoded
Definition: ffmpeg.h:665
OutputStream::inputs_done
int inputs_done
Definition: ffmpeg.h:647
of_stream_init
int of_stream_init(OutputFile *of, OutputStream *ost)
Definition: ffmpeg_mux.c:583
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:1015
VSYNC_PASSTHROUGH
@ VSYNC_PASSTHROUGH
Definition: ffmpeg.h:60
InputStream::dec
const AVCodec * dec
Definition: ffmpeg.h:356
EncStats::io
AVIOContext * io
Definition: ffmpeg.h:530
OptionsContext::discard
SpecifierOpt * discard
Definition: ffmpeg.h:243
InputStream::subtitle
AVSubtitle subtitle
Definition: ffmpeg.h:399
of_write_trailer
int of_write_trailer(OutputFile *of)
Definition: ffmpeg_mux.c:604
filtergraph_is_simple
int filtergraph_is_simple(FilterGraph *fg)
Definition: ffmpeg_filter.c:1310
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:504
term_exit
void term_exit(void)
Definition: ffmpeg.c:324
filter_complex_nbthreads
int filter_complex_nbthreads
Definition: ffmpeg_opt.c:87
OutputFile
Definition: ffmpeg.h:691
OptionsContext::loop
int loop
Definition: ffmpeg.h:124
InputStream::autorotate
int autorotate
Definition: ffmpeg.h:393
OutputStream::enc_timebase
AVRational enc_timebase
Definition: ffmpeg.h:590
OptionsContext::nb_force_fps
int nb_force_fps
Definition: ffmpeg.h:192