#include "config.h"
#include <stdatomic.h>
#include <stdint.h>
#include <stdio.h>
#include <signal.h>
#include "cmdutils.h"
#include "sync_queue.h"
#include "libavformat/avformat.h"
#include "libavformat/avio.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/bsf.h"
#include "libavfilter/avfilter.h"
#include "libavutil/avutil.h"
#include "libavutil/dict.h"
#include "libavutil/eval.h"
#include "libavutil/fifo.h"
#include "libavutil/hwcontext.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#include "libavutil/thread.h"
#include "libavutil/threadmessage.h"
#include "libswresample/swresample.h"

Data Structures
struct	HWDevice

struct	StreamMap

struct	AudioChannelMap

struct	DemuxPktData

struct	OptionsContext

struct	InputFilter

struct	OutputFilter

struct	FilterGraph

struct	InputStream

struct	InputStream::sub2video

struct	LastFrameDuration

struct	InputFile

struct	EncStatsComponent

struct	EncStats

struct	KeyframeForceCtx

struct	OutputStream

struct	OutputFile

struct	FrameData

Macros
#define	FFMPEG_OPT_PSNR 1

#define	FFMPEG_OPT_MAP_CHANNEL 1

#define	FFMPEG_OPT_MAP_SYNC 1

#define	FFMPEG_ROTATION_METADATA 1

#define	FFMPEG_OPT_QPHIST 1

#define	FFMPEG_OPT_ADRIFT_THRESHOLD 1

#define	FFMPEG_OPT_ENC_TIME_BASE_NUM 1

#define	FFMPEG_OPT_TOP 1

#define	FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP 1

#define	DECODING_FOR_OST 1

#define	DECODING_FOR_FILTER 2

#define	ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)

#define	ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)

#define	SPECIFIER_OPT_FMT_str "%s"

#define	SPECIFIER_OPT_FMT_i "%i"

#define	SPECIFIER_OPT_FMT_i64 "%"PRId64

#define	SPECIFIER_OPT_FMT_ui64 "%"PRIu64

#define	SPECIFIER_OPT_FMT_f "%f"

#define	SPECIFIER_OPT_FMT_dbl "%lf"

#define	WARN_MULTIPLE_OPT_USAGE(name, type, so, st)

#define	MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)

#define	MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)

Enumerations
enum	VideoSyncMethod { VSYNC_AUTO = -1, VSYNC_PASSTHROUGH, VSYNC_CFR, VSYNC_VFR, VSYNC_VSCFR, VSYNC_DROP }

enum	EncTimeBase { ENC_TIME_BASE_DEMUX = -1, ENC_TIME_BASE_FILTER = -2 }

enum	HWAccelID { HWACCEL_NONE = 0, HWACCEL_AUTO, HWACCEL_GENERIC }

enum	forced_keyframes_const { FKF_N, FKF_N_FORCED, FKF_PREV_FORCED_N, FKF_PREV_FORCED_T, FKF_T, FKF_NB }

enum	EncStatsType { ENC_STATS_LITERAL = 0, ENC_STATS_FILE_IDX, ENC_STATS_STREAM_IDX, ENC_STATS_FRAME_NUM, ENC_STATS_FRAME_NUM_IN, ENC_STATS_TIMEBASE, ENC_STATS_TIMEBASE_IN, ENC_STATS_PTS, ENC_STATS_PTS_TIME, ENC_STATS_PTS_IN, ENC_STATS_PTS_TIME_IN, ENC_STATS_DTS, ENC_STATS_DTS_TIME, ENC_STATS_SAMPLE_NUM, ENC_STATS_NB_SAMPLES, ENC_STATS_PKT_SIZE, ENC_STATS_BITRATE, ENC_STATS_AVG_BITRATE }

enum	OSTFinished { ENCODER_FINISHED = 1, MUXER_FINISHED = 2 }

enum	{ KF_FORCE_SOURCE = 1, KF_FORCE_SOURCE_NO_DROP = 2 }

Functions
void	term_init (void)

void	term_exit (void)

void	show_usage (void)

void	remove_avoptions (AVDictionary *a, AVDictionary b)

int	check_avoptions (AVDictionary *m)

int	assert_file_overwrite (const char *filename)

char *	file_read (const char *filename)

AVDictionary *	strip_specifiers (const AVDictionary *dict)

int	find_codec (void logctx, const char name, enum AVMediaType type, int encoder, const AVCodec **codec)

int	parse_and_set_vsync (const char arg, int vsync_var, int file_idx, int st_idx, int is_global)

int	check_filter_outputs (void)

int	filtergraph_is_simple (const FilterGraph *fg)

int	init_simple_filtergraph (InputStream ist, OutputStream ost, char *graph_desc)

int	init_complex_filtergraph (FilterGraph *fg)

int	copy_av_subtitle (AVSubtitle dst, const AVSubtitle src)

int	subtitle_wrap_frame (AVFrame frame, AVSubtitle subtitle, int copy)

FrameData *	frame_data (AVFrame *frame)
	Get our axiliary frame data attached to the frame, allocating it if needed. More...

int	ifilter_send_frame (InputFilter ifilter, AVFrame frame, int keep_reference)

int	ifilter_send_eof (InputFilter *ifilter, int64_t pts, AVRational tb)

int	ifilter_sub2video (InputFilter ifilter, const AVFrame frame)

void	ifilter_sub2video_heartbeat (InputFilter *ifilter, int64_t pts, AVRational tb)

int	ifilter_parameters_from_dec (InputFilter ifilter, const AVCodecContext dec)
	Set up fallback filtering parameters from a decoder context. More...

int	ofilter_bind_ost (OutputFilter ofilter, OutputStream ost)

int	fg_create (FilterGraph *pfg, char graph_desc)
	Create a new filtergraph in the global filtergraph list. More...

void	fg_free (FilterGraph **pfg)

int	fg_transcode_step (FilterGraph graph, InputStream *best_ist)
	Perform a step of transcoding for the specified filter graph. More...

void	fg_send_command (FilterGraph fg, double time, const char target, const char command, const char arg, int all_filters)

int	reap_filters (FilterGraph *fg, int flush)
	Get and encode new output from specified filtergraph, without causing activity. More...

int	ffmpeg_parse_options (int argc, char **argv)

void	enc_stats_write (OutputStream ost, EncStats es, const AVFrame frame, const AVPacket pkt, uint64_t frame_num)

HWDevice *	hw_device_get_by_name (const char *name)

HWDevice *	hw_device_get_by_type (enum AVHWDeviceType type)

int	hw_device_init_from_string (const char arg, HWDevice *dev)

int	hw_device_init_from_type (enum AVHWDeviceType type, const char device, HWDevice *dev_out)

void	hw_device_free_all (void)

AVBufferRef *	hw_device_for_filter (void)
	Get a hardware device to be used with this filtergraph. More...

int	hwaccel_retrieve_data (AVCodecContext avctx, AVFrame input)

int	dec_open (InputStream *ist)

void	dec_free (Decoder **pdec)

int	dec_packet (InputStream ist, const AVPacket pkt, int no_eof)
	Submit a packet for decoding. More...

int	enc_alloc (Encoder *penc, const AVCodec codec)

void	enc_free (Encoder **penc)

int	enc_open (OutputStream ost, const AVFrame frame)

int	enc_subtitle (OutputFile of, OutputStream ost, const AVSubtitle *sub)

int	enc_frame (OutputStream ost, AVFrame frame)

int	enc_flush (void)

int	of_stream_init (OutputFile of, OutputStream ost)

int	of_write_trailer (OutputFile *of)

int	of_open (const OptionsContext o, const char filename)

void	of_free (OutputFile **pof)

void	of_enc_stats_close (void)

int	of_output_packet (OutputFile of, OutputStream ost, AVPacket *pkt)

int	of_streamcopy (OutputStream ost, const AVPacket pkt, int64_t dts)

int64_t	of_filesize (OutputFile *of)

int	ifile_open (const OptionsContext o, const char filename)

void	ifile_close (InputFile **f)

int	ifile_get_packet (InputFile f, AVPacket *pkt)
	Get next input packet from the demuxer. More...

int	ist_output_add (InputStream ist, OutputStream ost)

int	ist_filter_add (InputStream ist, InputFilter ifilter, int is_simple)

InputStream *	ist_find_unused (enum AVMediaType type)
	Find an unused input stream of given type. More...

InputStream *	ist_iter (InputStream *prev)

OutputStream *	ost_iter (OutputStream *prev)

void	close_output_stream (OutputStream *ost)

int	trigger_fix_sub_duration_heartbeat (OutputStream ost, const AVPacket pkt)

int	fix_sub_duration_heartbeat (InputStream *ist, int64_t signal_pts)

void	update_benchmark (const char *fmt,...)

static int	err_merge (int err0, int err1)
	Merge two return codes - return one of the error codes if at least one of them was negative, 0 otherwise. More...

static void	pkt_move (void dst, void src)

static void	frame_move (void dst, void src)

Variables
const char *const	forced_keyframes_const_names []

InputFile **	input_files

int	nb_input_files

OutputFile **	output_files

int	nb_output_files

FilterGraph **	filtergraphs

int	nb_filtergraphs

char *	vstats_filename

char *	sdp_filename

float	dts_delta_threshold

float	dts_error_threshold

enum VideoSyncMethod	video_sync_method

float	frame_drop_threshold

int	do_benchmark

int	do_benchmark_all

int	do_hex_dump

int	do_pkt_dump

int	copy_ts

int	start_at_zero

int	copy_tb

int	debug_ts

int	exit_on_error

int	abort_on_flags

int	print_stats

int64_t	stats_period

int	stdin_interaction

AVIOContext *	progress_avio

float	max_error_rate

char *	filter_nbthreads

int	filter_complex_nbthreads

int	vstats_version

int	auto_conversion_filters

const AVIOInterruptCB	int_cb

const OptionDef	options []

HWDevice *	filter_hw_device

unsigned	nb_output_dumped

int	ignore_unknown_streams

int	copy_unknown_streams

int	recast_media

FILE *	vstats_file

int	do_psnr

const char *const	opt_name_codec_names []

const char *const	opt_name_codec_tags []

const char *const	opt_name_frame_rates []

const char *const	opt_name_top_field_first []

Macro Definition Documentation

◆ FFMPEG_OPT_PSNR

#define FFMPEG_OPT_PSNR 1

Definition at line 53 of file ffmpeg.h.

◆ FFMPEG_OPT_MAP_CHANNEL

#define FFMPEG_OPT_MAP_CHANNEL 1

Definition at line 54 of file ffmpeg.h.

◆ FFMPEG_OPT_MAP_SYNC

#define FFMPEG_OPT_MAP_SYNC 1

Definition at line 55 of file ffmpeg.h.

◆ FFMPEG_ROTATION_METADATA

#define FFMPEG_ROTATION_METADATA 1

Definition at line 56 of file ffmpeg.h.

◆ FFMPEG_OPT_QPHIST

#define FFMPEG_OPT_QPHIST 1

Definition at line 57 of file ffmpeg.h.

◆ FFMPEG_OPT_ADRIFT_THRESHOLD

#define FFMPEG_OPT_ADRIFT_THRESHOLD 1

Definition at line 58 of file ffmpeg.h.

◆ FFMPEG_OPT_ENC_TIME_BASE_NUM

#define FFMPEG_OPT_ENC_TIME_BASE_NUM 1

Definition at line 59 of file ffmpeg.h.

◆ FFMPEG_OPT_TOP

#define FFMPEG_OPT_TOP 1

Definition at line 60 of file ffmpeg.h.

◆ FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP

#define FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP 1

Definition at line 61 of file ffmpeg.h.

◆ DECODING_FOR_OST

#define DECODING_FOR_OST 1

Definition at line 334 of file ffmpeg.h.

◆ DECODING_FOR_FILTER

#define DECODING_FOR_FILTER 2

Definition at line 335 of file ffmpeg.h.

◆ ABORT_ON_FLAG_EMPTY_OUTPUT

#define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)

Definition at line 444 of file ffmpeg.h.

◆ ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM

#define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1)

Definition at line 445 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_str

#define SPECIFIER_OPT_FMT_str "%s"

Definition at line 894 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_i

#define SPECIFIER_OPT_FMT_i "%i"

Definition at line 895 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_i64

#define SPECIFIER_OPT_FMT_i64 "%"PRId64

Definition at line 896 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_ui64

#define SPECIFIER_OPT_FMT_ui64 "%"PRIu64

Definition at line 897 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_f

#define SPECIFIER_OPT_FMT_f "%f"

Definition at line 898 of file ffmpeg.h.

◆ SPECIFIER_OPT_FMT_dbl

#define SPECIFIER_OPT_FMT_dbl "%lf"

Definition at line 899 of file ffmpeg.h.

◆ WARN_MULTIPLE_OPT_USAGE

#define WARN_MULTIPLE_OPT_USAGE	(	name,
		type,
		so,
		st
	)

Value:

{\
    char namestr[128] = "";\
    const char *spec = so->specifier && so->specifier[0] ? so->specifier : "";\
    for (int _i = 0; opt_name_##name[_i]; _i++)\
        av_strlcatf(namestr, sizeof(namestr), "-%s%s", opt_name_##name[_i], opt_name_##name[_i+1] ? (opt_name_##name[_i+2] ? ", " : " or ") : "");\
    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",\
           namestr, st->index, opt_name_##name[0], spec[0] ? ":" : "", spec, so->u.type);\
}

Definition at line 901 of file ffmpeg.h.

◆ MATCH_PER_STREAM_OPT

#define MATCH_PER_STREAM_OPT	(	name,
		type,
		outvar,
		fmtctx,
		st
	)

Value:

{\
    int _ret, _matches = 0;\
    SpecifierOpt *so;\
    for (int _i = 0; _i < o->nb_ ## name; _i++) {\
        char *spec = o->name[_i].specifier;\
        if ((_ret = check_stream_specifier(fmtctx, st, spec)) > 0) {\
            outvar = o->name[_i].u.type;\
            so = &o->name[_i];\
            _matches++;\
        } else if (_ret < 0)\
            return _ret;\
    }\
    if (_matches > 1)\
       WARN_MULTIPLE_OPT_USAGE(name, type, so, st);\
}

Definition at line 911 of file ffmpeg.h.

◆ MATCH_PER_TYPE_OPT

#define MATCH_PER_TYPE_OPT	(	name,
		type,
		outvar,
		fmtctx,
		mediatype
	)

Value:

{\
    int i;\
    for (i = 0; i < o->nb_ ## name; i++) {\
        char *spec = o->name[i].specifier;\
        if (!strcmp(spec, mediatype))\
            outvar = o->name[i].u.type;\
    }\
}

Definition at line 928 of file ffmpeg.h.

Enumeration Type Documentation

◆ VideoSyncMethod

enum VideoSyncMethod

Enumerator
VSYNC_AUTO
VSYNC_PASSTHROUGH
VSYNC_CFR
VSYNC_VFR
VSYNC_VSCFR
VSYNC_DROP

Definition at line 63 of file ffmpeg.h.

◆ EncTimeBase

enum EncTimeBase

Enumerator
ENC_TIME_BASE_DEMUX
ENC_TIME_BASE_FILTER

Definition at line 72 of file ffmpeg.h.

◆ HWAccelID

enum HWAccelID

Enumerator
HWACCEL_NONE
HWACCEL_AUTO
HWACCEL_GENERIC

Definition at line 77 of file ffmpeg.h.

◆ forced_keyframes_const

enum forced_keyframes_const

Enumerator
FKF_N
FKF_N_FORCED
FKF_PREV_FORCED_N
FKF_PREV_FORCED_T
FKF_T
FKF_NB

Definition at line 435 of file ffmpeg.h.

◆ EncStatsType

enum EncStatsType

Enumerator
ENC_STATS_LITERAL
ENC_STATS_FILE_IDX
ENC_STATS_STREAM_IDX
ENC_STATS_FRAME_NUM
ENC_STATS_FRAME_NUM_IN
ENC_STATS_TIMEBASE
ENC_STATS_TIMEBASE_IN
ENC_STATS_PTS
ENC_STATS_PTS_TIME
ENC_STATS_PTS_IN
ENC_STATS_PTS_TIME_IN
ENC_STATS_DTS
ENC_STATS_DTS_TIME
ENC_STATS_SAMPLE_NUM
ENC_STATS_NB_SAMPLES
ENC_STATS_PKT_SIZE
ENC_STATS_BITRATE
ENC_STATS_AVG_BITRATE

Definition at line 447 of file ffmpeg.h.

◆ OSTFinished

enum OSTFinished

Enumerator
ENCODER_FINISHED
MUXER_FINISHED

Definition at line 484 of file ffmpeg.h.

◆ anonymous enum

anonymous enum

Enumerator
KF_FORCE_SOURCE
KF_FORCE_SOURCE_NO_DROP

Definition at line 489 of file ffmpeg.h.

Function Documentation

◆ term_init()

void term_init ( void )

Definition at line 241 of file ffmpeg.c.

Referenced by assert_file_overwrite().

◆ term_exit()

void term_exit ( void )

Definition at line 171 of file ffmpeg.c.

Referenced by assert_file_overwrite(), ffmpeg_cleanup(), and transcode().

◆ show_usage()

void show_usage ( void )

Definition at line 1248 of file ffmpeg_opt.c.

Referenced by main(), and show_help_default().

◆ remove_avoptions()

void remove_avoptions	(	AVDictionary **	a,
		AVDictionary *	b
	)

Definition at line 446 of file ffmpeg.c.

Referenced by ifile_open().

◆ check_avoptions()

int check_avoptions ( AVDictionary * m )

Definition at line 455 of file ffmpeg.c.

Referenced by dec_open(), enc_open(), and ifile_open().

◆ assert_file_overwrite()

int assert_file_overwrite ( const char * filename )

Definition at line 704 of file ffmpeg_opt.c.

Referenced by dump_attachment(), and of_open().

◆ file_read()

char* file_read ( const char * filename )

Definition at line 750 of file ffmpeg_opt.c.

Referenced by filter_opt_apply(), new_stream_video(), opt_filter_complex_script(), and ost_get_filters().

◆ strip_specifiers()

AVDictionary* strip_specifiers ( const AVDictionary * dict )

Definition at line 169 of file ffmpeg_opt.c.

Referenced by ifile_open(), and validate_enc_avopt().

◆ find_codec()

int find_codec	(	void *	logctx,
		const char *	name,
		enum AVMediaType	type,
		int	encoder,
		const AVCodec **	codec
	)

Definition at line 671 of file ffmpeg_opt.c.

Referenced by choose_decoder(), choose_encoder(), and ifile_open().

◆ 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 at line 186 of file ffmpeg_opt.c.

Referenced by new_stream_video(), and opt_vsync().

◆ check_filter_outputs()

int check_filter_outputs ( void )

Definition at line 1349 of file ffmpeg_filter.c.

◆ filtergraph_is_simple()

int filtergraph_is_simple ( const FilterGraph * fg )

Definition at line 1812 of file ffmpeg_filter.c.

Referenced by configure_filtergraph(), ifilter_bind_ist(), and print_stream_maps().

◆ init_simple_filtergraph()

int init_simple_filtergraph	(	InputStream *	ist,
		OutputStream *	ost,
		char *	graph_desc
	)

Definition at line 957 of file ffmpeg_filter.c.

Referenced by ost_add().

◆ init_complex_filtergraph()

int init_complex_filtergraph ( FilterGraph * fg )

Definition at line 1063 of file ffmpeg_filter.c.

Referenced by init_complex_filters().

◆ copy_av_subtitle()

int copy_av_subtitle	(	AVSubtitle *	dst,
		const AVSubtitle *	src
	)

Definition at line 651 of file ffmpeg.c.

Referenced by subtitle_wrap_frame().

◆ subtitle_wrap_frame()

int subtitle_wrap_frame	(	AVFrame *	frame,
		AVSubtitle *	subtitle,
		int	copy
	)

Definition at line 738 of file ffmpeg.c.

Referenced by fix_sub_duration_heartbeat(), and transcode_subtitles().

◆ frame_data()

FrameData* frame_data ( AVFrame * frame )

Get our axiliary frame data attached to the frame, allocating it if needed.

Definition at line 429 of file ffmpeg.c.

Referenced by choose_out_timebase(), dwt_plane(), fg_output_step(), fg_transcode_step(), generate_raw_frame(), nvenc_retrieve_frame_data(), nvenc_store_frame_data(), and packet_decode().

◆ ifilter_send_frame()

int ifilter_send_frame	(	InputFilter *	ifilter,
		AVFrame *	frame,
		int	keep_reference
	)

Definition at line 2355 of file ffmpeg_filter.c.

Referenced by send_frame_to_filters().

◆ ifilter_send_eof()

int ifilter_send_eof	(	InputFilter *	ifilter,
		int64_t	pts,
		AVRational	tb
	)

Definition at line 2307 of file ffmpeg_filter.c.

Referenced by send_filter_eof().

◆ ifilter_sub2video()

int ifilter_sub2video	(	InputFilter *	ifilter,
		const AVFrame *	frame
	)

Definition at line 2274 of file ffmpeg_filter.c.

Referenced by process_subtitle(), and sub2video_flush().

◆ ifilter_sub2video_heartbeat()

void ifilter_sub2video_heartbeat	(	InputFilter *	ifilter,
		int64_t	pts,
		AVRational	tb
	)

Definition at line 2248 of file ffmpeg_filter.c.

Referenced by sub2video_heartbeat().

◆ ifilter_parameters_from_dec()

int ifilter_parameters_from_dec	(	InputFilter *	ifilter,
		const AVCodecContext *	dec
	)

Set up fallback filtering parameters from a decoder context.

They will only be used if no frames are ever sent on this input, otherwise the actual parameters are taken from the frame.

Definition at line 1749 of file ffmpeg_filter.c.

Referenced by ist_filter_add().

◆ ofilter_bind_ost()

int ofilter_bind_ost	(	OutputFilter *	ofilter,
		OutputStream *	ost
	)

Definition at line 665 of file ffmpeg_filter.c.

Referenced by init_simple_filtergraph(), and ost_add().

◆ fg_create()

int fg_create	(	FilterGraph **	pfg,
		char *	graph_desc
	)

Create a new filtergraph in the global filtergraph list.

Parameters

graph_desc Graph description; an av_malloc()ed string, filtergraph takes ownership of it.

Definition at line 866 of file ffmpeg_filter.c.

Referenced by init_simple_filtergraph(), opt_filter_complex(), and opt_filter_complex_script().

◆ fg_free()

void fg_free ( FilterGraph ** pfg )

Definition at line 800 of file ffmpeg_filter.c.

Referenced by ffmpeg_cleanup().

◆ fg_transcode_step()

int fg_transcode_step	(	FilterGraph *	graph,
		InputStream **	best_ist
	)

Perform a step of transcoding for the specified filter graph.

Parameters

[in]	graph	filter graph to consider
[out]	best_ist	input stream where a frame would allow to continue

Returns: 0 for success, <0 for error

Definition at line 2452 of file ffmpeg_filter.c.

Referenced by transcode_step().

◆ fg_send_command()

void fg_send_command	(	FilterGraph *	fg,
		double	time,
		const char *	target,
		const char *	command,
		const char *	arg,
		int	all_filters
	)

Definition at line 1818 of file ffmpeg_filter.c.

Referenced by check_keyboard_interaction().

◆ reap_filters()

int reap_filters	(	FilterGraph *	fg,
		int	flush
	)

Get and encode new output from specified filtergraph, without causing activity.

Returns: 0 for success, <0 for severe errors

Definition at line 2228 of file ffmpeg_filter.c.

Referenced by fg_transcode_step(), ifilter_send_frame(), and transcode_step().

◆ ffmpeg_parse_options()

int ffmpeg_parse_options	(	int	argc,
		char **	argv
	)

Referenced by main().

◆ enc_stats_write()

void enc_stats_write	(	OutputStream *	ost,
		EncStats *	es,
		const AVFrame *	frame,
		const AVPacket *	pkt,
		uint64_t	frame_num
	)

Definition at line 481 of file ffmpeg_enc.c.

Referenced by encode_frame(), and write_packet().

◆ hw_device_get_by_name()

HWDevice* hw_device_get_by_name ( const char * name )

Definition at line 44 of file ffmpeg_hw.c.

Referenced by hw_device_default_name(), hw_device_init_from_string(), hw_device_setup_for_decode(), and opt_filter_hw_device().

◆ hw_device_get_by_type()

HWDevice* hw_device_get_by_type ( enum AVHWDeviceType type )

Definition at line 30 of file ffmpeg_hw.c.

Referenced by hw_device_match_by_codec(), hw_device_setup_for_decode(), and hw_device_setup_for_encode().

◆ hw_device_init_from_string()

int hw_device_init_from_string	(	const char *	arg,
		HWDevice **	dev
	)

Definition at line 94 of file ffmpeg_hw.c.

Referenced by opt_init_hw_device().

◆ hw_device_init_from_type()

int hw_device_init_from_type	(	enum AVHWDeviceType	type,
		const char *	device,
		HWDevice **	dev_out
	)

Definition at line 245 of file ffmpeg_hw.c.

Referenced by hw_device_setup_for_decode().

◆ hw_device_free_all()

void hw_device_free_all ( void )

Definition at line 288 of file ffmpeg_hw.c.

Referenced by ffmpeg_cleanup().

◆ hw_device_for_filter()

AVBufferRef* hw_device_for_filter ( void )

Get a hardware device to be used with this filtergraph.

The returned reference is owned by the callee, the caller must ref it explicitly for long-term use.

Definition at line 342 of file ffmpeg_hw.c.

Referenced by configure_filtergraph().

◆ hwaccel_retrieve_data()

int hwaccel_retrieve_data	(	AVCodecContext *	avctx,
		AVFrame *	input
	)

Definition at line 300 of file ffmpeg_hw.c.

Referenced by video_frame_process().

◆ dec_open()

int dec_open ( InputStream * ist )

Definition at line 1070 of file ffmpeg_dec.c.

Referenced by ist_use().

◆ dec_free()

void dec_free ( Decoder ** pdec )

Definition at line 97 of file ffmpeg_dec.c.

Referenced by dec_alloc(), and ist_free().

◆ dec_packet()

int dec_packet	(	InputStream *	ist,
		const AVPacket *	pkt,
		int	no_eof
	)

Submit a packet for decoding.

When pkt==NULL and no_eof=0, there will be no more input. Flush decoders and mark all downstreams as finished.

When pkt==NULL and no_eof=1, the stream was reset (e.g. after a seek). Flush decoders and await further input.

Definition at line 772 of file ffmpeg_dec.c.

Referenced by decode_flush(), and process_input_packet().

◆ enc_alloc()

int enc_alloc	(	Encoder **	penc,
		const AVCodec *	codec
	)

Definition at line 70 of file ffmpeg_enc.c.

Referenced by ost_add().

◆ enc_free()

void enc_free ( Encoder ** penc )

Definition at line 56 of file ffmpeg_enc.c.

Referenced by enc_alloc(), and ost_free().

◆ enc_open()

int enc_open	(	OutputStream *	ost,
		const AVFrame *	frame
	)

Definition at line 168 of file ffmpeg_enc.c.

Referenced by enc_frame(), fg_transcode_step(), and init_output_stream_nofilter().

◆ enc_subtitle()

int enc_subtitle	(	OutputFile *	of,
		OutputStream *	ost,
		const AVSubtitle *	sub
	)

Definition at line 395 of file ffmpeg_enc.c.

Referenced by process_subtitle().

◆ enc_frame()

int enc_frame	(	OutputStream *	ost,
		AVFrame *	frame
	)

Definition at line 850 of file ffmpeg_enc.c.

Referenced by fg_output_frame(), and submit_encode_frame().

◆ enc_flush()

int enc_flush ( void )

Definition at line 863 of file ffmpeg_enc.c.

Referenced by transcode().

◆ of_stream_init()

int of_stream_init	(	OutputFile *	of,
		OutputStream *	ost
	)

Definition at line 671 of file ffmpeg_mux.c.

Referenced by enc_open(), and init_output_stream_nofilter().

◆ of_write_trailer()

int of_write_trailer ( OutputFile * of )

Definition at line 799 of file ffmpeg_mux.c.

Referenced by transcode().

◆ of_open()

int of_open	(	const OptionsContext *	o,
		const char *	filename
	)

Definition at line 2624 of file ffmpeg_mux_init.c.

◆ of_free()

void of_free ( OutputFile ** pof )

Definition at line 920 of file ffmpeg_mux.c.

Referenced by ffmpeg_cleanup().

◆ of_enc_stats_close()

void of_enc_stats_close ( void )

Definition at line 235 of file ffmpeg_mux_init.c.

Referenced by ffmpeg_cleanup().

◆ of_output_packet()

int of_output_packet	(	OutputFile *	of,
		OutputStream *	ost,
		AVPacket *	pkt
	)

Definition at line 349 of file ffmpeg_mux.c.

Referenced by enc_subtitle(), encode_frame(), of_streamcopy(), and process_input().

◆ of_streamcopy()

int of_streamcopy	(	OutputStream *	ost,
		const AVPacket *	pkt,
		int64_t	dts
	)

Parameters

dts	predicted packet dts in AV_TIME_BASE_Q

Definition at line 406 of file ffmpeg_mux.c.

Referenced by process_input_packet().

◆ of_filesize()

int64_t of_filesize ( OutputFile * of )

Definition at line 947 of file ffmpeg_mux.c.

Referenced by mux_final_stats(), and print_report().

◆ ifile_open()

int ifile_open	(	const OptionsContext *	o,
		const char *	filename
	)

Definition at line 1350 of file ffmpeg_demux.c.

◆ ifile_close()

void ifile_close ( InputFile ** f )

Definition at line 807 of file ffmpeg_demux.c.

Referenced by ffmpeg_cleanup().

◆ ifile_get_packet()

int ifile_get_packet	(	InputFile *	f,
		AVPacket **	pkt
	)

Get next input packet from the demuxer.

Parameters

pkt	the packet is written here when this function returns 0

Returns

0 when a packet has been read successfully
1 when stream end was reached, but the stream is looped; caller should flush decoders and read from this demuxer again
a negative error code on failure

Definition at line 723 of file ffmpeg_demux.c.

Referenced by process_input().

◆ ist_output_add()

int ist_output_add	(	InputStream *	ist,
		OutputStream *	ost
	)

Definition at line 853 of file ffmpeg_demux.c.

Referenced by ost_add().

◆ ist_filter_add()

int ist_filter_add	(	InputStream *	ist,
		InputFilter *	ifilter,
		int	is_simple
	)

Definition at line 870 of file ffmpeg_demux.c.

Referenced by ifilter_bind_ist().

◆ ist_find_unused()

InputStream* ist_find_unused ( enum AVMediaType type )

Find an unused input stream of given type.

Definition at line 135 of file ffmpeg_demux.c.

Referenced by init_input_filter().

◆ ist_iter()

InputStream* ist_iter ( InputStream * prev )

Definition at line 413 of file ffmpeg.c.

Referenced by ist_find_unused(), map_auto_data(), map_auto_subtitle(), print_stream_maps(), and transcode().

◆ ost_iter()

OutputStream* ost_iter ( OutputStream * prev )

Definition at line 397 of file ffmpeg.c.

Referenced by choose_output(), enc_flush(), print_report(), print_stream_maps(), and reset_eagain().

◆ close_output_stream()

void close_output_stream ( OutputStream * ost )

Definition at line 487 of file ffmpeg.c.

Referenced by check_recording_time(), fg_transcode_step(), and submit_encode_frame().

◆ trigger_fix_sub_duration_heartbeat()

int trigger_fix_sub_duration_heartbeat	(	OutputStream *	ost,
		const AVPacket *	pkt
	)

Definition at line 771 of file ffmpeg.c.

Referenced by encode_frame(), and of_streamcopy().

◆ fix_sub_duration_heartbeat()

int fix_sub_duration_heartbeat	(	InputStream *	ist,
		int64_t	signal_pts
	)

Definition at line 454 of file ffmpeg_dec.c.

Referenced by ost_add(), and trigger_fix_sub_duration_heartbeat().

◆ update_benchmark()

void update_benchmark	(	const char *	fmt,
			...
	)

Definition at line 466 of file ffmpeg.c.

Referenced by encode_frame(), and packet_decode().

◆ err_merge()

static int err_merge	(	int	err0,
		int	err1
	)

inlinestatic

Merge two return codes - return one of the error codes if at least one of them was negative, 0 otherwise.

Currently just picks the first one, eventually we might want to do something more sophisticated, like sorting them by priority.

Definition at line 889 of file ffmpeg.h.

Referenced by check_written(), dec_packet(), ifile_open(), of_write_trailer(), and transcode().

◆ pkt_move()

static void pkt_move	(	void *	dst,
		void *	src
	)

inlinestatic

Definition at line 945 of file ffmpeg.h.

Referenced by dec_thread_start(), and thread_start().

◆ frame_move()

static void frame_move	(	void *	dst,
		void *	src
	)

inlinestatic

Definition at line 950 of file ffmpeg.h.

Referenced by dec_thread_start().

Variable Documentation

◆ forced_keyframes_const_names

const char* const forced_keyframes_const_names[]

Definition at line 2399 of file ffmpeg_mux_init.c.

Referenced by process_forced_keyframes().

◆ input_files

◆ nb_input_files

int nb_input_files

Definition at line 124 of file ffmpeg.c.

Referenced by apply_sync_offsets(), assert_file_overwrite(), copy_meta(), correct_input_start_times(), demux_alloc(), ffmpeg_cleanup(), init_input_filter(), ist_iter(), main(), map_auto_audio(), map_auto_video(), opt_map(), opt_map_channel(), opt_target(), reset_eagain(), and thread_start().

◆ output_files

OutputFile** output_files

◆ nb_output_files

int nb_output_files

Definition at line 127 of file ffmpeg.c.

Referenced by create_streams(), ffmpeg_cleanup(), main(), mux_alloc(), mux_check_init(), ost_iter(), print_report(), print_sdp(), and transcode().

◆ filtergraphs

FilterGraph** filtergraphs

Definition at line 129 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), create_streams(), ffmpeg_cleanup(), fg_create(), init_complex_filters(), map_manual(), and transcode_step().

◆ nb_filtergraphs

int nb_filtergraphs

Definition at line 130 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), create_streams(), ffmpeg_cleanup(), fg_create(), init_complex_filters(), map_manual(), print_stream_maps(), and transcode_step().

◆ vstats_filename

char* vstats_filename

Definition at line 65 of file ffmpeg_opt.c.

Referenced by encode_frame(), ffmpeg_cleanup(), opt_vstats_file(), and update_video_stats().

◆ sdp_filename

char* sdp_filename

Definition at line 66 of file ffmpeg_opt.c.

Referenced by mux_check_init(), opt_sdp_file(), and print_sdp().

◆ dts_delta_threshold

float dts_delta_threshold

Definition at line 69 of file ffmpeg_opt.c.

Referenced by ts_discontinuity_detect().

◆ dts_error_threshold

float dts_error_threshold

Definition at line 70 of file ffmpeg_opt.c.

Referenced by ts_discontinuity_detect(), and video_sync_process().

◆ video_sync_method

enum VideoSyncMethod video_sync_method

Definition at line 72 of file ffmpeg_opt.c.

Referenced by new_stream_video(), opt_vsync(), and parse_and_set_vsync().

◆ frame_drop_threshold

float frame_drop_threshold

Definition at line 73 of file ffmpeg_opt.c.

Referenced by video_sync_process().

◆ do_benchmark

int do_benchmark

Definition at line 74 of file ffmpeg_opt.c.

Referenced by ffmpeg_cleanup(), and main().

◆ do_benchmark_all

int do_benchmark_all

Definition at line 75 of file ffmpeg_opt.c.

Referenced by update_benchmark().

◆ do_hex_dump

int do_hex_dump

Definition at line 76 of file ffmpeg_opt.c.

Referenced by input_thread().

◆ do_pkt_dump

int do_pkt_dump

Definition at line 77 of file ffmpeg_opt.c.

Referenced by input_thread().

◆ copy_ts

int copy_ts

Definition at line 78 of file ffmpeg_opt.c.

Referenced by apply_sync_offsets(), configure_input_audio_filter(), configure_input_video_filter(), correct_input_start_times(), ifile_open(), new_stream_video(), print_report(), process_input_packet(), readrate_sleep(), streamcopy_init(), and ts_discontinuity_detect().

◆ start_at_zero

int start_at_zero

Definition at line 79 of file ffmpeg_opt.c.

Referenced by apply_sync_offsets(), configure_input_audio_filter(), configure_input_video_filter(), correct_input_start_times(), ifile_open(), process_input_packet(), and readrate_sleep().

◆ copy_tb

int copy_tb

Definition at line 80 of file ffmpeg_opt.c.

Referenced by avformat_transfer_internal_stream_timing_info(), and streamcopy_init().

◆ debug_ts

int debug_ts

Definition at line 81 of file ffmpeg_opt.c.

Referenced by adjust_frame_pts_to_encoder_tb(), encode_frame(), fg_output_step(), input_packet_process(), video_frame_process(), and write_packet().

◆ exit_on_error

int exit_on_error

Definition at line 82 of file ffmpeg_opt.c.

Referenced by enc_subtitle(), input_thread(), of_output_packet(), packet_decode(), process_input(), transcode_subtitles(), and write_packet().

◆ abort_on_flags

int abort_on_flags

Definition at line 83 of file ffmpeg_opt.c.

Referenced by check_written(), and opt_abort_on().

◆ print_stats

int print_stats

Definition at line 84 of file ffmpeg_opt.c.

Referenced by print_report().

◆ stats_period

int64_t stats_period

Definition at line 91 of file ffmpeg_opt.c.

Referenced by opt_stats_period(), and print_report().

◆ stdin_interaction

int stdin_interaction

Definition at line 85 of file ffmpeg_opt.c.

Referenced by assert_file_overwrite(), ifile_open(), term_init(), and transcode().

◆ progress_avio

AVIOContext* progress_avio

Definition at line 121 of file ffmpeg.c.

Referenced by print_report().

◆ max_error_rate

float max_error_rate

Definition at line 86 of file ffmpeg_opt.c.

Referenced by transcode().

◆ filter_nbthreads

char* filter_nbthreads

Definition at line 87 of file ffmpeg_opt.c.

Referenced by configure_filtergraph(), ffmpeg_cleanup(), and opt_filter_threads().

◆ filter_complex_nbthreads

int filter_complex_nbthreads

Definition at line 88 of file ffmpeg_opt.c.

Referenced by configure_filtergraph().

◆ vstats_version

int vstats_version

Definition at line 89 of file ffmpeg_opt.c.

Referenced by update_video_stats().

◆ auto_conversion_filters

int auto_conversion_filters

Definition at line 90 of file ffmpeg_opt.c.

Referenced by fg_create().

◆ int_cb

const AVIOInterruptCB int_cb

Definition at line 346 of file ffmpeg.c.

Referenced by avio_open2(), dump_attachment(), enc_stats_get_file(), ff_network_sleep_interruptible(), ff_network_wait_fd_timeout(), ffio_open_whitelist(), ffurl_alloc(), ffurl_open_whitelist(), get_preset_file_2(), ifile_open(), libsrt_network_wait_fd_timeout(), of_add_attachments(), of_open(), print_sdp(), read_binary(), url_alloc_for_protocol(), and zmq_proto_wait_timeout().

◆ options

const OptionDef options[]

Examples: avio_http_serve_files.c.

Referenced by av_bsf_list_append2(), av_hwdevice_ctx_create_derived_opts(), av_opt_set_dict(), av_opt_set_dict2(), avcodec_open2(), avfilter_init_dict(), avfilter_init_str(), avformat_find_stream_info(), avformat_init_output(), avformat_open_input(), avformat_write_header(), avio_open2(), bsf_list_append_internal(), dnn_load_model_tf(), ff_filter_opt_parse(), ff_format_output_open(), ff_opus_psy_init(), ff_tee_parse_slave_options(), ff_tls_open_underlying(), ffio_open_whitelist(), get_output_ov(), hls_read_header(), hw_device_init_from_string(), init(), init_input(), init_muxer(), io_open_default(), list_devices_for_context(), locate_option(), main(), open_url_keepalive(), opt_audio_codec(), opt_audio_filters(), opt_audio_frames(), opt_audio_qscale(), opt_data_codec(), opt_data_frames(), opt_old2new(), opt_qscale(), opt_recording_timestamp(), opt_subtitle_codec(), opt_target(), opt_timecode(), opt_video_codec(), opt_video_filters(), opt_video_frames(), parse_loglevel(), parse_option(), parse_options(), pcm_read_header(), pp_get_mode_by_name_and_quality(), set_string_dict(), show_banner(), show_help_default(), show_help_options(), split_commandline(), subfile_open(), tee_open(), try_decode_frame(), uninit_options(), wrap(), and write_packet().

◆ filter_hw_device

HWDevice* filter_hw_device

Definition at line 63 of file ffmpeg_opt.c.

Referenced by hw_device_for_filter(), and opt_filter_hw_device().

◆ nb_output_dumped

unsigned nb_output_dumped

Definition at line 118 of file ffmpeg.c.

Referenced by mux_check_init(), and print_report().

◆ ignore_unknown_streams

int ignore_unknown_streams

Definition at line 99 of file ffmpeg_opt.c.

Referenced by map_manual().

◆ copy_unknown_streams

int copy_unknown_streams

Definition at line 100 of file ffmpeg_opt.c.

Referenced by map_manual().

◆ recast_media

int recast_media

Definition at line 101 of file ffmpeg_opt.c.

Referenced by choose_decoder(), and find_codec().

◆ vstats_file

FILE* vstats_file

Definition at line 107 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), and update_video_stats().

◆ do_psnr

int do_psnr

Definition at line 97 of file ffmpeg_opt.c.

Referenced by new_stream_video().

◆ opt_name_codec_names

const char* const opt_name_codec_names[]

Definition at line 56 of file ffmpeg_opt.c.

◆ opt_name_codec_tags

const char* const opt_name_codec_tags[]

Definition at line 58 of file ffmpeg_opt.c.

◆ opt_name_frame_rates

const char* const opt_name_frame_rates[]

Definition at line 57 of file ffmpeg_opt.c.

◆ opt_name_top_field_first

const char* const opt_name_top_field_first[]

Definition at line 60 of file ffmpeg_opt.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ FFMPEG_OPT_PSNR

◆ FFMPEG_OPT_MAP_CHANNEL

◆ FFMPEG_OPT_MAP_SYNC

◆ FFMPEG_ROTATION_METADATA

◆ FFMPEG_OPT_QPHIST

◆ FFMPEG_OPT_ADRIFT_THRESHOLD

◆ FFMPEG_OPT_ENC_TIME_BASE_NUM

◆ FFMPEG_OPT_TOP

◆ FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP

◆ DECODING_FOR_OST

◆ DECODING_FOR_FILTER

◆ ABORT_ON_FLAG_EMPTY_OUTPUT

◆ ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM

◆ SPECIFIER_OPT_FMT_str

◆ SPECIFIER_OPT_FMT_i

◆ SPECIFIER_OPT_FMT_i64

◆ SPECIFIER_OPT_FMT_ui64

◆ SPECIFIER_OPT_FMT_f

◆ SPECIFIER_OPT_FMT_dbl

◆ WARN_MULTIPLE_OPT_USAGE

◆ MATCH_PER_STREAM_OPT

◆ MATCH_PER_TYPE_OPT

Enumeration Type Documentation

◆ VideoSyncMethod

◆ EncTimeBase

◆ HWAccelID

◆ forced_keyframes_const

◆ EncStatsType

◆ OSTFinished

◆ anonymous enum

Function Documentation

◆ term_init()

◆ term_exit()

◆ show_usage()

◆ remove_avoptions()

◆ check_avoptions()

◆ assert_file_overwrite()

◆ file_read()

◆ strip_specifiers()

◆ find_codec()

◆ parse_and_set_vsync()

◆ check_filter_outputs()

◆ filtergraph_is_simple()

◆ init_simple_filtergraph()

◆ init_complex_filtergraph()

◆ copy_av_subtitle()

◆ subtitle_wrap_frame()

◆ frame_data()

◆ ifilter_send_frame()

◆ ifilter_send_eof()

◆ ifilter_sub2video()

◆ ifilter_sub2video_heartbeat()

◆ ifilter_parameters_from_dec()

◆ ofilter_bind_ost()

◆ fg_create()

◆ fg_free()

◆ fg_transcode_step()

◆ fg_send_command()

◆ reap_filters()

◆ ffmpeg_parse_options()

◆ enc_stats_write()

◆ hw_device_get_by_name()

◆ hw_device_get_by_type()

◆ hw_device_init_from_string()

◆ hw_device_init_from_type()

◆ hw_device_free_all()

◆ hw_device_for_filter()

◆ hwaccel_retrieve_data()

◆ dec_open()

◆ dec_free()

◆ dec_packet()

◆ enc_alloc()

◆ enc_free()

◆ enc_open()