multimedia converter based on the FFmpeg libraries More...

#include "config.h"
#include <ctype.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <errno.h>
#include <limits.h>
#include <stdatomic.h>
#include <stdint.h>
#include "libavformat/avformat.h"
#include "libavdevice/avdevice.h"
#include "libswresample/swresample.h"
#include "libavutil/opt.h"
#include "libavutil/channel_layout.h"
#include "libavutil/parseutils.h"
#include "libavutil/samplefmt.h"
#include "libavutil/fifo.h"
#include "libavutil/hwcontext.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/display.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "libavutil/avstring.h"
#include "libavutil/libm.h"
#include "libavutil/imgutils.h"
#include "libavutil/timestamp.h"
#include "libavutil/bprint.h"
#include "libavutil/time.h"
#include "libavutil/thread.h"
#include "libavutil/threadmessage.h"
#include "libavcodec/mathops.h"
#include "libavformat/os_support.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/buffersrc.h"
#include "libavfilter/buffersink.h"
#include "ffmpeg.h"
#include "cmdutils.h"
#include "libavutil/avassert.h"

Functions
static void	do_video_stats (OutputStream *ost, int frame_size)

static int64_t	getutime (void)

static int64_t	getmaxrss (void)

static int	ifilter_has_all_input_formats (FilterGraph *fg)

static int	sub2video_get_blank_frame (InputStream *ist)

static void	sub2video_copy_rect (uint8_t dst, int dst_linesize, int w, int h, AVSubtitleRect r)

static void	sub2video_push_ref (InputStream *ist, int64_t pts)

void	sub2video_update (InputStream ist, AVSubtitle sub)

static void	sub2video_heartbeat (InputStream *ist, int64_t pts)

static void	sub2video_flush (InputStream *ist)

static void	term_exit_sigsafe (void)

void	term_exit (void)

static void	sigterm_handler (int sig)

void	term_init (void)

static int	read_key (void)

static int	decode_interrupt_cb (void *ctx)

static void	ffmpeg_cleanup (int ret)

void	remove_avoptions (AVDictionary *a, AVDictionary b)

void	assert_avoptions (AVDictionary *m)

static void	abort_codec_experimental (AVCodec *c, int encoder)

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

static void	close_all_output_streams (OutputStream *ost, OSTFinished this_stream, OSTFinished others)

static void	write_packet (OutputFile of, AVPacket pkt, OutputStream *ost, int unqueue)

static void	close_output_stream (OutputStream *ost)

static void	output_packet (OutputFile of, AVPacket pkt, OutputStream *ost, int eof)

static int	check_recording_time (OutputStream *ost)

static void	do_audio_out (OutputFile of, OutputStream ost, AVFrame *frame)

static void	do_subtitle_out (OutputFile of, OutputStream ost, AVSubtitle *sub)

static void	do_video_out (OutputFile of, OutputStream ost, AVFrame *next_picture, double sync_ipts)

static double	psnr (double d)

static int	init_output_stream (OutputStream ost, char error, int error_len)

static void	finish_output_stream (OutputStream *ost)

static int	reap_filters (int flush)
	Get and encode new output from any of the filtergraphs, without causing activity. More...

static void	print_final_stats (int64_t total_size)

static void	print_report (int is_last_report, int64_t timer_start, int64_t cur_time)

static void	ifilter_parameters_from_codecpar (InputFilter ifilter, AVCodecParameters par)

static void	flush_encoders (void)

static int	check_output_constraints (InputStream ist, OutputStream ost)

static void	do_streamcopy (InputStream ist, OutputStream ost, const AVPacket *pkt)

int	guess_input_channel_layout (InputStream *ist)

static void	check_decode_result (InputStream ist, int got_output, int ret)

static int	ifilter_send_frame (InputFilter ifilter, AVFrame frame)

static int	ifilter_send_eof (InputFilter *ifilter, int64_t pts)

static int	decode (AVCodecContext avctx, AVFrame frame, int got_frame, AVPacket pkt)

static int	send_frame_to_filters (InputStream ist, AVFrame decoded_frame)

static int	decode_audio (InputStream ist, AVPacket pkt, int got_output, int decode_failed)

static int	decode_video (InputStream ist, AVPacket pkt, int got_output, int64_t duration_pts, int eof, int *decode_failed)

static int	transcode_subtitles (InputStream ist, AVPacket pkt, int got_output, int decode_failed)

static int	send_filter_eof (InputStream *ist)

static int	process_input_packet (InputStream ist, const AVPacket pkt, int no_eof)

static void	print_sdp (void)

static enum AVPixelFormat	get_format (AVCodecContext s, const enum AVPixelFormat pix_fmts)

static int	get_buffer (AVCodecContext s, AVFrame frame, int flags)

static int	init_input_stream (int ist_index, char *error, int error_len)

static InputStream *	get_input_stream (OutputStream *ost)

static int	compare_int64 (const void a, const void b)

static int	check_init_output_file (OutputFile *of, int file_index)

static int	init_output_bsfs (OutputStream *ost)

static int	init_output_stream_streamcopy (OutputStream *ost)

static void	set_encoder_id (OutputFile of, OutputStream ost)

static void	parse_forced_key_frames (char kf, OutputStream ost, AVCodecContext *avctx)

static void	init_encoder_time_base (OutputStream *ost, AVRational default_time_base)

static int	init_output_stream_encode (OutputStream *ost)

static void	report_new_stream (int input_index, AVPacket *pkt)

static int	transcode_init (void)

static int	need_output (void)

static OutputStream *	choose_output (void)
	Select the output stream to process. More...

static void	set_tty_echo (int on)

static int	check_keyboard_interaction (int64_t cur_time)

static int	get_input_packet (InputFile f, AVPacket pkt)

static int	got_eagain (void)

static void	reset_eagain (void)

static AVRational	duration_max (int64_t tmp, int64_t *duration, AVRational tmp_time_base, AVRational time_base)

static int	seek_to_start (InputFile ifile, AVFormatContext is)

static int	process_input (int file_index)

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

static int	transcode_step (void)
	Run a single step of transcoding. More...

static int	transcode (void)

static void	log_callback_null (void ptr, int level, const char fmt, va_list vl)

int	main (int argc, char **argv)

Variables
const char	program_name [] = "ffmpeg"
	program name, defined by the program for show_version(). More...

const int	program_birth_year = 2000
	program birth year, defined by the program for show_banner() More...

static FILE *	vstats_file

const char *const	forced_keyframes_const_names []

static int	run_as_daemon = 0

static int	nb_frames_dup = 0

static unsigned	dup_warning = 1000

static int	nb_frames_drop = 0

static int64_t	decode_error_stat [2]

static int	want_sdp = 1

static int	current_time

AVIOContext *	progress_avio = NULL

static uint8_t *	subtitle_out

InputStream **	input_streams = NULL

int	nb_input_streams = 0

InputFile **	input_files = NULL

int	nb_input_files = 0

OutputStream **	output_streams = NULL

int	nb_output_streams = 0

OutputFile **	output_files = NULL

int	nb_output_files = 0

FilterGraph **	filtergraphs

int	nb_filtergraphs

static volatile int	received_sigterm = 0

static volatile int	received_nb_signals = 0

static atomic_int	transcode_init_done = ATOMIC_VAR_INIT(0)

static volatile int	ffmpeg_exited = 0

static int	main_return_code = 0

const AVIOInterruptCB	int_cb = { decode_interrupt_cb, NULL }

Detailed Description

multimedia converter based on the FFmpeg libraries

Definition in file ffmpeg.c.

Function Documentation

◆ do_video_stats()

static void do_video_stats	(	OutputStream *	ost,
		int	frame_size
	)

static

Definition at line 1349 of file ffmpeg.c.

Referenced by do_video_out(), and flush_encoders().

◆ getutime()

static int64_t getutime ( void )

static

Definition at line 4719 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

◆ getmaxrss()

static int64_t getmaxrss ( void )

static

Definition at line 4737 of file ffmpeg.c.

Referenced by ffmpeg_cleanup().

◆ ifilter_has_all_input_formats()

static int ifilter_has_all_input_formats ( FilterGraph * fg )

static

Definition at line 2106 of file ffmpeg.c.

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

◆ sub2video_get_blank_frame()

static int sub2video_get_blank_frame ( InputStream * ist )

static

Definition at line 170 of file ffmpeg.c.

Referenced by sub2video_update().

◆ sub2video_copy_rect()

static void sub2video_copy_rect	(	uint8_t *	dst,
		int	dst_linesize,
		int	w,
		int	h,
		AVSubtitleRect *	r
	)

static

Definition at line 185 of file ffmpeg.c.

Referenced by sub2video_update().

◆ sub2video_push_ref()

static void sub2video_push_ref	(	InputStream *	ist,
		int64_t	pts
	)

static

Definition at line 216 of file ffmpeg.c.

Referenced by sub2video_heartbeat(), and sub2video_update().

◆ sub2video_update()

void sub2video_update	(	InputStream *	ist,
		AVSubtitle *	sub
	)

Definition at line 234 of file ffmpeg.c.

Referenced by configure_filtergraph(), sub2video_flush(), sub2video_heartbeat(), and transcode_subtitles().

◆ sub2video_heartbeat()

static void sub2video_heartbeat	(	InputStream *	ist,
		int64_t	pts
	)

static

Definition at line 268 of file ffmpeg.c.

Referenced by process_input().

◆ sub2video_flush()

static void sub2video_flush ( InputStream * ist )

static

Definition at line 298 of file ffmpeg.c.

Referenced by transcode_subtitles().

◆ term_exit_sigsafe()

static void term_exit_sigsafe ( void )

static

Definition at line 314 of file ffmpeg.c.

Referenced by sigterm_handler(), and term_exit().

◆ term_exit()

void term_exit ( void )

Definition at line 322 of file ffmpeg.c.

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

◆ sigterm_handler()

static void sigterm_handler ( int sig )

static

Definition at line 335 of file ffmpeg.c.

Referenced by term_init().

◆ term_init()

void term_init ( void )

Definition at line 381 of file ffmpeg.c.

Referenced by assert_file_overwrite(), and ffmpeg_parse_options().

◆ read_key()

static int read_key ( void )

static

Definition at line 419 of file ffmpeg.c.

Referenced by check_keyboard_interaction().

◆ decode_interrupt_cb()

static int decode_interrupt_cb ( void * ctx )

static

Definition at line 470 of file ffmpeg.c.

◆ ffmpeg_cleanup()

static void ffmpeg_cleanup ( int ret )

static

Definition at line 477 of file ffmpeg.c.

Referenced by main().

◆ remove_avoptions()

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

Definition at line 630 of file ffmpeg.c.

Referenced by open_input_file().

◆ assert_avoptions()

void assert_avoptions ( AVDictionary * m )

Definition at line 639 of file ffmpeg.c.

Referenced by init_input_stream(), init_output_stream(), and open_input_file().

◆ abort_codec_experimental()

static void abort_codec_experimental	(	AVCodec *	c,
		int	encoder
	)

static

Definition at line 648 of file ffmpeg.c.

Referenced by init_input_stream(), and init_output_stream().

◆ update_benchmark()

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

static

Definition at line 653 of file ffmpeg.c.

Referenced by decode_audio(), decode_video(), do_audio_out(), do_video_out(), and flush_encoders().

◆ close_all_output_streams()

static void close_all_output_streams	(	OutputStream *	ost,
		OSTFinished	this_stream,
		OSTFinished	others
	)

static

Definition at line 670 of file ffmpeg.c.

Referenced by write_packet().

◆ write_packet()

static void write_packet	(	OutputFile *	of,
		AVPacket *	pkt,
		OutputStream *	ost,
		int	unqueue
	)

static

Definition at line 679 of file ffmpeg.c.

Referenced by avio_alloc_context(), check_init_output_file(), ffio_init_context(), mmf_read_packet(), ogg_free(), output_packet(), and swf_write_trailer().

◆ close_output_stream()

static void close_output_stream ( OutputStream * ost )

static

Definition at line 814 of file ffmpeg.c.

Referenced by check_recording_time(), do_streamcopy(), need_output(), and transcode_from_filter().

◆ output_packet()

static void output_packet	(	OutputFile *	of,
		AVPacket *	pkt,
		OutputStream *	ost,
		int	eof
	)

static

Examples:: transcode_aac.c.

Definition at line 836 of file ffmpeg.c.

Referenced by do_audio_out(), do_streamcopy(), do_subtitle_out(), do_video_out(), encode_audio_frame(), and flush_encoders().

◆ check_recording_time()

static int check_recording_time ( OutputStream * ost )

static

Definition at line 887 of file ffmpeg.c.

Referenced by do_audio_out(), do_subtitle_out(), and do_video_out().

◆ do_audio_out()

static void do_audio_out	(	OutputFile *	of,
		OutputStream *	ost,
		AVFrame *	frame
	)

static

Definition at line 900 of file ffmpeg.c.

Referenced by reap_filters().

◆ do_subtitle_out()

static void do_subtitle_out	(	OutputFile *	of,
		OutputStream *	ost,
		AVSubtitle *	sub
	)

static

Definition at line 960 of file ffmpeg.c.

Referenced by transcode_subtitles().

◆ do_video_out()

static void do_video_out	(	OutputFile *	of,
		OutputStream *	ost,
		AVFrame *	next_picture,
		double	sync_ipts
	)

static

Definition at line 1043 of file ffmpeg.c.

Referenced by reap_filters().

◆ psnr()

static double psnr ( double d )

static

Definition at line 1344 of file ffmpeg.c.

Referenced by do_video_stats(), main(), print_report(), and run_psnr().

◆ init_output_stream()

static int init_output_stream	(	OutputStream *	ost,
		char *	error,
		int	error_len
	)

static

Definition at line 3422 of file ffmpeg.c.

Referenced by do_video_stats(), flush_encoders(), reap_filters(), transcode_init(), and transcode_step().

◆ finish_output_stream()

static void finish_output_stream ( OutputStream * ost )

static

Definition at line 1394 of file ffmpeg.c.

Referenced by flush_encoders(), and process_input().

◆ reap_filters()

static int reap_filters ( int flush )

static

Get and encode new output from any of the filtergraphs, without causing activity.

Returns: 0 for success, <0 for severe errors

Definition at line 1413 of file ffmpeg.c.

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

◆ print_final_stats()

static void print_final_stats ( int64_t total_size )

static

Definition at line 1519 of file ffmpeg.c.

Referenced by print_report().

◆ print_report()

static void print_report	(	int	is_last_report,
		int64_t	timer_start,
		int64_t	cur_time
	)

static

Definition at line 1636 of file ffmpeg.c.

Referenced by transcode().

◆ ifilter_parameters_from_codecpar()

static void ifilter_parameters_from_codecpar	(	InputFilter *	ifilter,
		AVCodecParameters *	par
	)

static

Definition at line 1833 of file ffmpeg.c.

Referenced by flush_encoders(), and ifilter_send_eof().

◆ flush_encoders()

static void flush_encoders ( void )

static

Definition at line 1846 of file ffmpeg.c.

Referenced by transcode().

◆ check_output_constraints()

static int check_output_constraints	(	InputStream *	ist,
		OutputStream *	ost
	)

static

Definition at line 1965 of file ffmpeg.c.

Referenced by process_input_packet(), and transcode_subtitles().

◆ do_streamcopy()

static void do_streamcopy	(	InputStream *	ist,
		OutputStream *	ost,
		const AVPacket *	pkt
	)

static

Definition at line 1982 of file ffmpeg.c.

Referenced by process_input_packet().

◆ guess_input_channel_layout()

int guess_input_channel_layout ( InputStream * ist )

Definition at line 2069 of file ffmpeg.c.

Referenced by add_input_streams().

◆ check_decode_result()

static void check_decode_result	(	InputStream *	ist,
		int *	got_output,
		int	ret
	)

static

Definition at line 2089 of file ffmpeg.c.

Referenced by decode_audio(), decode_video(), and transcode_subtitles().

◆ ifilter_send_frame()

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

static

Definition at line 2117 of file ffmpeg.c.

Referenced by send_frame_to_filters().

◆ ifilter_send_eof()

static int ifilter_send_eof	(	InputFilter *	ifilter,
		int64_t	pts
	)

static

Definition at line 2190 of file ffmpeg.c.

Referenced by send_filter_eof().

◆ decode()

static int decode	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		int *	got_frame,
		AVPacket *	pkt
	)

static

Definition at line 2217 of file ffmpeg.c.

Referenced by decode_audio(), and decode_video().

◆ send_frame_to_filters()

static int send_frame_to_filters	(	InputStream *	ist,
		AVFrame *	decoded_frame
	)

static

Definition at line 2240 of file ffmpeg.c.

Referenced by decode_audio(), and decode_video().

◆ decode_audio()

static int decode_audio	(	InputStream *	ist,
		AVPacket *	pkt,
		int *	got_output,
		int *	decode_failed
	)

static

Definition at line 2266 of file ffmpeg.c.

Referenced by process_input_packet().

◆ decode_video()

static int decode_video	(	InputStream *	ist,
		AVPacket *	pkt,
		int *	got_output,
		int64_t *	duration_pts,
		int	eof,
		int *	decode_failed
	)

static

Definition at line 2330 of file ffmpeg.c.

Referenced by process_input_packet().

◆ transcode_subtitles()

static int transcode_subtitles	(	InputStream *	ist,
		AVPacket *	pkt,
		int *	got_output,
		int *	decode_failed
	)

static

Definition at line 2463 of file ffmpeg.c.

Referenced by process_input_packet().

◆ send_filter_eof()

static int send_filter_eof ( InputStream * ist )

static

Definition at line 2540 of file ffmpeg.c.

Referenced by process_input_packet().

◆ process_input_packet()

static int process_input_packet	(	InputStream *	ist,
		const AVPacket *	pkt,
		int	no_eof
	)

static

Definition at line 2556 of file ffmpeg.c.

Referenced by process_input(), and transcode().

◆ print_sdp()

static void print_sdp ( void )

static

Definition at line 2733 of file ffmpeg.c.

Referenced by check_init_output_file().

◆ get_format()

static enum AVPixelFormat get_format	(	AVCodecContext *	s,
		const enum AVPixelFormat *	pix_fmts
	)

static

Definition at line 2778 of file ffmpeg.c.

Referenced by init_input_stream().

◆ get_buffer()

static int get_buffer	(	AVCodecContext *	s,
		AVFrame *	frame,
		int	flags
	)

static

Definition at line 2864 of file ffmpeg.c.

Referenced by init_input_stream().

◆ init_input_stream()

static int init_input_stream	(	int	ist_index,
		char *	error,
		int	error_len
	)

static

Definition at line 2874 of file ffmpeg.c.

Referenced by transcode_init().

◆ get_input_stream()

static InputStream* get_input_stream ( OutputStream * ost )

static

Definition at line 2939 of file ffmpeg.c.

Referenced by init_encoder_time_base(), init_output_stream(), init_output_stream_encode(), and init_output_stream_streamcopy().

◆ compare_int64()

static int compare_int64	(	const void *	a,
		const void *	b
	)

static

Definition at line 2946 of file ffmpeg.c.

Referenced by parse_forced_key_frames().

◆ check_init_output_file()

static int check_init_output_file	(	OutputFile *	of,
		int	file_index
	)

static

Definition at line 2952 of file ffmpeg.c.

Referenced by init_output_stream(), and transcode_init().

◆ init_output_bsfs()

static int init_output_bsfs ( OutputStream * ost )

static

Definition at line 2998 of file ffmpeg.c.

Referenced by init_output_stream().

◆ init_output_stream_streamcopy()

static int init_output_stream_streamcopy ( OutputStream * ost )

static

Definition at line 3034 of file ffmpeg.c.

Referenced by init_output_stream().

◆ set_encoder_id()

static void set_encoder_id	(	OutputFile *	of,
		OutputStream *	ost
	)

static

Definition at line 3142 of file ffmpeg.c.

Referenced by init_output_stream_encode().

◆ parse_forced_key_frames()

static void parse_forced_key_frames	(	char *	kf,
		OutputStream *	ost,
		AVCodecContext *	avctx
	)

static

Definition at line 3183 of file ffmpeg.c.

Referenced by init_output_stream_encode().

◆ init_encoder_time_base()

static void init_encoder_time_base	(	OutputStream *	ost,
		AVRational	default_time_base
	)

static

Definition at line 3246 of file ffmpeg.c.

Referenced by init_output_stream_encode().

◆ init_output_stream_encode()

static int init_output_stream_encode ( OutputStream * ost )

static

Definition at line 3270 of file ffmpeg.c.

Referenced by init_output_stream().

◆ report_new_stream()

static void report_new_stream	(	int	input_index,
		AVPacket *	pkt
	)

static

Definition at line 3600 of file ffmpeg.c.

Referenced by process_input().

◆ transcode_init()

static int transcode_init ( void )

static

Definition at line 3615 of file ffmpeg.c.

Referenced by transcode().

◆ need_output()

static int need_output ( void )

static

Definition at line 3788 of file ffmpeg.c.

Referenced by transcode().

◆ choose_output()

static OutputStream* choose_output ( void )

static

Select the output stream to process.

Returns: selected output stream, or NULL if none available

Definition at line 3818 of file ffmpeg.c.

Referenced by transcode_step().

◆ set_tty_echo()

static void set_tty_echo ( int on )

static

Definition at line 3843 of file ffmpeg.c.

Referenced by check_keyboard_interaction().

◆ check_keyboard_interaction()

static int check_keyboard_interaction ( int64_t cur_time )

static

Definition at line 3855 of file ffmpeg.c.

Referenced by transcode().

◆ get_input_packet()

static int get_input_packet	(	InputFile *	f,
		AVPacket *	pkt
	)

static

Definition at line 4069 of file ffmpeg.c.

Referenced by process_input().

◆ got_eagain()

static int got_eagain ( void )

static

Definition at line 4089 of file ffmpeg.c.

Referenced by transcode_step().

◆ reset_eagain()

static void reset_eagain ( void )

static

Definition at line 4098 of file ffmpeg.c.

Referenced by process_input(), and transcode_step().

◆ duration_max()

static AVRational duration_max	(	int64_t	tmp,
		int64_t *	duration,
		AVRational	tmp_time_base,
		AVRational	time_base
	)

static

Definition at line 4108 of file ffmpeg.c.

Referenced by seek_to_start().

◆ seek_to_start()

static int seek_to_start	(	InputFile *	ifile,
		AVFormatContext *	is
	)

static

Definition at line 4127 of file ffmpeg.c.

Referenced by process_input().

◆ process_input()

static int process_input ( int file_index )

static

Definition at line 4192 of file ffmpeg.c.

Referenced by transcode_step().

◆ transcode_from_filter()

static int transcode_from_filter	(	FilterGraph *	graph,
		InputStream **	best_ist
	)

static

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 4456 of file ffmpeg.c.

Referenced by transcode_step().

◆ transcode_step()

static int transcode_step ( void )

static

Run a single step of transcoding.

Returns: 0 for success, <0 for error

Definition at line 4502 of file ffmpeg.c.

Referenced by transcode().

◆ transcode()

static int transcode ( void )

static

Definition at line 4577 of file ffmpeg.c.

Referenced by main().

◆ log_callback_null()

static void log_callback_null	(	void *	ptr,
		int	level,
		const char *	fmt,
		va_list	vl
	)

static

Definition at line 4755 of file ffmpeg.c.

Referenced by main().

◆ main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 4759 of file ffmpeg.c.

Variable Documentation

◆ program_name

const char program_name[] = "ffmpeg"

program name, defined by the program for show_version().

Definition at line 109 of file ffmpeg.c.

Referenced by main().

◆ program_birth_year

const int program_birth_year = 2000

program birth year, defined by the program for show_banner()

Definition at line 110 of file ffmpeg.c.

◆ vstats_file

FILE* vstats_file

static

Definition at line 112 of file ffmpeg.c.

Referenced by do_video_stats(), and ffmpeg_cleanup().

◆ forced_keyframes_const_names

const char* const forced_keyframes_const_names[]

Initial value:

= {
    "n",
    "n_forced",
    "prev_forced_n",
    "prev_forced_t",
    "t",
    NULL
}

Definition at line 114 of file ffmpeg.c.

Referenced by init_output_stream_encode().

◆ run_as_daemon

int run_as_daemon = 0

static

Definition at line 128 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), main(), and term_init().

◆ nb_frames_dup

int nb_frames_dup = 0

static

Definition at line 129 of file ffmpeg.c.

Referenced by do_video_out(), and print_report().

◆ dup_warning

unsigned dup_warning = 1000

static

Definition at line 130 of file ffmpeg.c.

Referenced by do_video_out().

◆ nb_frames_drop

int nb_frames_drop = 0

static

Definition at line 131 of file ffmpeg.c.

Referenced by do_video_out(), and print_report().

◆ decode_error_stat

int64_t decode_error_stat[2]

static

Definition at line 132 of file ffmpeg.c.

Referenced by check_decode_result(), and main().

◆ want_sdp

int want_sdp = 1

static

Definition at line 134 of file ffmpeg.c.

Referenced by check_init_output_file(), and main().

◆ current_time

int current_time

static

Definition at line 136 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

◆ progress_avio

AVIOContext* progress_avio = NULL

Definition at line 137 of file ffmpeg.c.

Referenced by opt_progress().

◆ subtitle_out

uint8_t* subtitle_out

static

Definition at line 139 of file ffmpeg.c.

Referenced by do_subtitle_out(), and ffmpeg_cleanup().

◆ input_streams

InputStream** input_streams = NULL

Definition at line 141 of file ffmpeg.c.

Referenced by add_input_streams(), init_input_filter(), new_audio_stream(), new_output_stream(), open_input_file(), and open_output_file().

◆ nb_input_streams

int nb_input_streams = 0

Definition at line 142 of file ffmpeg.c.

Referenced by add_input_streams(), check_keyboard_interaction(), ffmpeg_cleanup(), init_input_filter(), open_input_file(), open_output_file(), transcode(), and transcode_init().

◆ input_files

InputFile** input_files = NULL

Definition at line 143 of file ffmpeg.c.

Referenced by configure_input_audio_filter(), configure_input_video_filter(), init_input_filter(), open_input_file(), open_output_file(), opt_map(), opt_map_channel(), opt_target(), and sub2video_prepare().

◆ nb_input_files

int nb_input_files = 0

Definition at line 144 of file ffmpeg.c.

Referenced by add_input_streams(), check_keyboard_interaction(), dump_attachment(), ffmpeg_cleanup(), get_input_packet(), init_input_filter(), main(), open_input_file(), open_output_file(), opt_map(), opt_map_channel(), opt_target(), print_final_stats(), reset_eagain(), and transcode_init().

◆ output_streams

OutputStream** output_streams = NULL

Definition at line 146 of file ffmpeg.c.

Referenced by new_output_stream(), and open_output_file().

◆ nb_output_streams

int nb_output_streams = 0

Definition at line 147 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), choose_output(), close_all_output_streams(), ffmpeg_cleanup(), flush_encoders(), got_eagain(), need_output(), new_output_stream(), open_output_file(), print_final_stats(), print_report(), process_input(), process_input_packet(), reap_filters(), reset_eagain(), transcode(), transcode_init(), and transcode_subtitles().

◆ output_files

OutputFile** output_files = NULL

Definition at line 148 of file ffmpeg.c.

Referenced by configure_output_audio_filter(), configure_output_video_filter(), and open_output_file().

◆ nb_output_files

int nb_output_files = 0

Definition at line 149 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), get_ost_filters(), main(), new_output_stream(), open_output_file(), print_final_stats(), print_sdp(), transcode(), and transcode_init().

◆ filtergraphs

FilterGraph** filtergraphs

Definition at line 151 of file ffmpeg.c.

Referenced by check_filter_outputs(), DEF_CHOOSE_FORMAT(), init_complex_filters(), open_output_file(), opt_filter_complex(), and opt_filter_complex_script().

◆ nb_filtergraphs

int nb_filtergraphs

Definition at line 152 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), DEF_CHOOSE_FORMAT(), ffmpeg_cleanup(), init_complex_filters(), open_output_file(), opt_filter_complex(), opt_filter_complex_script(), and transcode_init().

◆ received_sigterm

volatile int received_sigterm = 0

static

Definition at line 328 of file ffmpeg.c.

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

◆ received_nb_signals

volatile int received_nb_signals = 0

static

Definition at line 329 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), decode_interrupt_cb(), main(), and sigterm_handler().

◆ transcode_init_done

atomic_int transcode_init_done = ATOMIC_VAR_INIT(0)

static

Definition at line 330 of file ffmpeg.c.

Referenced by decode_interrupt_cb(), ffmpeg_cleanup(), and transcode_init().

◆ ffmpeg_exited

volatile int ffmpeg_exited = 0

static

Definition at line 331 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), and sigterm_handler().

◆ main_return_code

int main_return_code = 0

static

Definition at line 332 of file ffmpeg.c.

Referenced by main(), and write_packet().

◆ int_cb

const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }

Definition at line 475 of file ffmpeg.c.

Referenced by check_init_output_file(), dump_attachment(), ffio_wfourcc(), get_preset_file_2(), open_input_file(), open_output_file(), opt_progress(), and url_alloc_for_protocol().

Functions

Variables

Detailed Description

Function Documentation

◆ do_video_stats()

◆ getutime()

◆ getmaxrss()

◆ ifilter_has_all_input_formats()

◆ sub2video_get_blank_frame()

◆ sub2video_copy_rect()

◆ sub2video_push_ref()

◆ sub2video_update()

◆ sub2video_heartbeat()

◆ sub2video_flush()

◆ term_exit_sigsafe()

◆ term_exit()

◆ sigterm_handler()

◆ term_init()

◆ read_key()

◆ decode_interrupt_cb()

◆ ffmpeg_cleanup()

◆ remove_avoptions()

◆ assert_avoptions()

◆ abort_codec_experimental()

◆ update_benchmark()

◆ close_all_output_streams()

◆ write_packet()

◆ close_output_stream()

◆ output_packet()

◆ check_recording_time()

◆ do_audio_out()

◆ do_subtitle_out()

◆ do_video_out()

◆ psnr()

◆ init_output_stream()

◆ finish_output_stream()

◆ reap_filters()

◆ print_final_stats()

◆ print_report()

◆ ifilter_parameters_from_codecpar()

◆ flush_encoders()

◆ check_output_constraints()

◆ do_streamcopy()

◆ guess_input_channel_layout()

◆ check_decode_result()

◆ ifilter_send_frame()

◆ ifilter_send_eof()

◆ decode()

◆ send_frame_to_filters()

◆ decode_audio()

◆ decode_video()

◆ transcode_subtitles()

◆ send_filter_eof()

◆ process_input_packet()

◆ print_sdp()

◆ get_format()

◆ get_buffer()

◆ init_input_stream()

◆ get_input_stream()

◆ compare_int64()

◆ check_init_output_file()

◆ init_output_bsfs()

◆ init_output_stream_streamcopy()

◆ set_encoder_id()

◆ parse_forced_key_frames()

◆ init_encoder_time_base()

◆ init_output_stream_encode()

◆ report_new_stream()

◆ transcode_init()

◆ need_output()

◆ choose_output()

◆ set_tty_echo()

◆ check_keyboard_interaction()

◆ get_input_packet()

◆ got_eagain()

◆ reset_eagain()

◆ duration_max()

◆ seek_to_start()

◆ process_input()

◆ transcode_from_filter()