ffmpeg.c File Reference

#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"

Go to the source code of this file.

Data Structures
struct	BenchmarkTimeStamps

Macros
#define	SIGNAL(sig, func)   signal(sig, func)

Functions
static void	do_video_stats (OutputStream *ost, int frame_size)
static BenchmarkTimeStamps	get_benchmark_time_stamps (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, int64_t heartbeat_pts, 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 (const 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 double	adjust_frame_pts_to_encoder_tb (OutputFile *of, OutputStream *ost, AVFrame *frame)
static int	init_output_stream (OutputStream *ost, AVFrame *frame, char *error, int error_len)
static int	init_output_stream_wrapper (OutputStream *ost, AVFrame *frame, unsigned int fatal)
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)
static double	psnr (double d)
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, int keep_reference)
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 int	print_sdp (void)
static enum AVPixelFormat	get_format (AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
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, AVFrame *frame)
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 unsigned	nb_output_dumped = 0
static int	want_sdp = 1
static BenchmarkTimeStamps	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
static int64_t	copy_ts_first_pts = AV_NOPTS_VALUE
const AVIOInterruptCB	int_cb = { decode_interrupt_cb, NULL }

Detailed Description

multimedia converter based on the FFmpeg libraries

Definition in file ffmpeg.c.

Macro Definition Documentation

SIGNAL

#define SIGNAL	(		sig,
			func
	)		signal(sig, func)

Definition at line 404 of file ffmpeg.c.

Function Documentation

do_video_stats()

static void do_video_stats ( OutputStream *  ost, int  frame_size  )

static

Definition at line 1420 of file ffmpeg.c.

Referenced by do_video_out(), and flush_encoders().

get_benchmark_time_stamps()

static BenchmarkTimeStamps get_benchmark_time_stamps ( void  )

static

Definition at line 4795 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

getmaxrss()

static int64_t getmaxrss ( void  )

static

Definition at line 4821 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 2136 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 177 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 192 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 223 of file ffmpeg.c.

Referenced by sub2video_heartbeat(), and sub2video_update().

sub2video_update()

void sub2video_update	(	InputStream *	ist,
		int64_t	heartbeat_pts,
		AVSubtitle *	sub
	)

Definition at line 241 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 281 of file ffmpeg.c.

Referenced by process_input().

sub2video_flush()

static void sub2video_flush ( InputStream *  ist )

static

Definition at line 313 of file ffmpeg.c.

Referenced by transcode_subtitles().

term_exit_sigsafe()

static void term_exit_sigsafe ( void  )

static

Definition at line 329 of file ffmpeg.c.

Referenced by sigterm_handler(), and term_exit().

term_exit()

void term_exit

(

void

)

Definition at line 337 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 351 of file ffmpeg.c.

Referenced by term_init().

term_init()

void term_init

(

void

)

Definition at line 408 of file ffmpeg.c.

Referenced by assert_file_overwrite().

read_key()

static int read_key ( void  )

static

Definition at line 457 of file ffmpeg.c.

Referenced by check_keyboard_interaction().

decode_interrupt_cb()

static int decode_interrupt_cb ( void *  ctx )

static

Definition at line 508 of file ffmpeg.c.

ffmpeg_cleanup()

static void ffmpeg_cleanup ( int  ret )

static

Definition at line 515 of file ffmpeg.c.

Referenced by main().

remove_avoptions()

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

Definition at line 674 of file ffmpeg.c.

Referenced by open_input_file().

assert_avoptions()

void assert_avoptions

(

AVDictionary *

m

)

Definition at line 683 of file ffmpeg.c.

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

abort_codec_experimental()

static void abort_codec_experimental ( const AVCodec *  c, int  encoder  )

static

Definition at line 692 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 697 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 718 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 727 of file ffmpeg.c.

Referenced by avio_alloc_context(), check_init_output_file(), ffio_init_context(), and output_packet().

close_output_stream()

static void close_output_stream ( OutputStream *  ost )

static

Definition at line 871 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 894 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 920 of file ffmpeg.c.

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

adjust_frame_pts_to_encoder_tb()

static double adjust_frame_pts_to_encoder_tb ( OutputFile *  of, OutputStream *  ost, AVFrame *  frame  )

static

Definition at line 933 of file ffmpeg.c.

Referenced by do_audio_out(), and do_video_out().

init_output_stream()

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

static

Definition at line 3433 of file ffmpeg.c.

Referenced by init_output_stream_wrapper().

init_output_stream_wrapper()

static int init_output_stream_wrapper ( OutputStream *  ost, AVFrame *  frame, unsigned int  fatal  )

static

Definition at line 980 of file ffmpeg.c.

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

do_audio_out()

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

static

Definition at line 1001 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 1058 of file ffmpeg.c.

Referenced by transcode_subtitles().

do_video_out()

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

static

Definition at line 1142 of file ffmpeg.c.

Referenced by reap_filters().

psnr()

static double psnr ( double  d )

static

Definition at line 1415 of file ffmpeg.c.

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

finish_output_stream()

static void finish_output_stream ( OutputStream *  ost )

static

Definition at line 1463 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 1482 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 1559 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 1676 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 1886 of file ffmpeg.c.

Referenced by flush_encoders(), and ifilter_send_eof().

flush_encoders()

static void flush_encoders ( void  )

static

Definition at line 1899 of file ffmpeg.c.

Referenced by transcode().

check_output_constraints()

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

static

Definition at line 2005 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 2022 of file ffmpeg.c.

Referenced by process_input_packet().

guess_input_channel_layout()

int guess_input_channel_layout

(

InputStream *

ist

)

Definition at line 2097 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 2117 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, int  keep_reference  )

static

Definition at line 2147 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 2232 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 2259 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 2282 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 2300 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 2360 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 2485 of file ffmpeg.c.

Referenced by process_input_packet().

send_filter_eof()

static int send_filter_eof ( InputStream *  ist )

static

Definition at line 2562 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 2578 of file ffmpeg.c.

Referenced by process_input(), and transcode().

print_sdp()

static int print_sdp ( void  )

static

Definition at line 2764 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 2817 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 2866 of file ffmpeg.c.

Referenced by transcode_init().

get_input_stream()

static InputStream* get_input_stream ( OutputStream *  ost )

static

Definition at line 2931 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 2938 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 2944 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 3027 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 3146 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 3187 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 3250 of file ffmpeg.c.

Referenced by init_output_stream_encode().

init_output_stream_encode()

static int init_output_stream_encode ( OutputStream *  ost, AVFrame *  frame  )

static

Definition at line 3274 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 3577 of file ffmpeg.c.

Referenced by process_input().

transcode_init()

static int transcode_init ( void  )

static

Definition at line 3592 of file ffmpeg.c.

Referenced by transcode().

need_output()

static int need_output ( void  )

static

Definition at line 3774 of file ffmpeg.c.

Referenced by mf_negotiate_types(), and 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 3804 of file ffmpeg.c.

Referenced by transcode_step().

set_tty_echo()

static void set_tty_echo ( int  on )

static

Definition at line 3831 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 3843 of file ffmpeg.c.

Referenced by transcode().

get_input_packet()

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

static

Definition at line 4078 of file ffmpeg.c.

Referenced by process_input().

got_eagain()

static int got_eagain ( void  )

static

Definition at line 4107 of file ffmpeg.c.

Referenced by movie_request_frame(), and transcode_step().

reset_eagain()

static void reset_eagain ( void  )

static

Definition at line 4116 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 4126 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 4145 of file ffmpeg.c.

Referenced by process_input().

process_input()

static int process_input ( int  file_index )

static

Definition at line 4211 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 4504 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 4550 of file ffmpeg.c.

Referenced by transcode().

transcode()

static int transcode ( void  )

static

Definition at line 4640 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 4839 of file ffmpeg.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 4843 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 134 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 135 of file ffmpeg.c.

Referenced by do_video_out(), and print_report().

dup_warning

unsigned dup_warning = 1000

static

Definition at line 136 of file ffmpeg.c.

Referenced by do_video_out().

nb_frames_drop

int nb_frames_drop = 0

static

Definition at line 137 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 138 of file ffmpeg.c.

Referenced by check_decode_result(), and main().

nb_output_dumped

unsigned nb_output_dumped = 0

static

Definition at line 139 of file ffmpeg.c.

Referenced by check_init_output_file(), and print_report().

want_sdp

int want_sdp = 1

static

Definition at line 141 of file ffmpeg.c.

Referenced by check_init_output_file(), and main().

current_time

BenchmarkTimeStamps current_time

static

Definition at line 143 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

progress_avio

AVIOContext* progress_avio = NULL

Definition at line 144 of file ffmpeg.c.

Referenced by print_report().

subtitle_out

uint8_t* subtitle_out

static

Definition at line 146 of file ffmpeg.c.

Referenced by do_subtitle_out(), and ffmpeg_cleanup().

input_streams

InputStream** input_streams = NULL

Definition at line 148 of file ffmpeg.c.

Referenced by add_input_streams(), check_keyboard_interaction(), do_video_out(), ffmpeg_cleanup(), get_input_packet(), get_input_stream(), init_input_filter(), init_input_stream(), init_output_stream_encode(), new_audio_stream(), new_output_stream(), new_video_stream(), open_input_file(), open_output_file(), opt_map(), opt_map_channel(), print_final_stats(), process_input(), seek_to_start(), set_dispositions(), sub2video_heartbeat(), transcode(), transcode_init(), and transcode_step().

nb_input_streams

int nb_input_streams = 0

Definition at line 149 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 150 of file ffmpeg.c.

Referenced by assert_file_overwrite(), check_decode_result(), check_output_constraints(), configure_input_audio_filter(), configure_input_video_filter(), do_streamcopy(), ffmpeg_cleanup(), init_input_filter(), new_video_stream(), open_input_file(), open_output_file(), opt_map(), opt_map_channel(), opt_target(), print_final_stats(), process_input(), report_new_stream(), reset_eagain(), sub2video_heartbeat(), sub2video_prepare(), transcode(), transcode_from_filter(), transcode_init(), and transcode_step().

nb_input_files

int nb_input_files = 0

Definition at line 151 of file ffmpeg.c.

Referenced by add_input_streams(), assert_file_overwrite(), dump_attachment(), ffmpeg_cleanup(), 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 153 of file ffmpeg.c.

Referenced by check_init_output_file(), 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(), set_dispositions(), transcode(), transcode_init(), and transcode_subtitles().

nb_output_streams

int nb_output_streams = 0

Definition at line 154 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 155 of file ffmpeg.c.

Referenced by check_output_constraints(), check_recording_time(), close_output_stream(), configure_output_audio_filter(), configure_output_video_filter(), do_streamcopy(), do_subtitle_out(), ffmpeg_cleanup(), finish_output_stream(), flush_encoders(), init_encoder_time_base(), init_output_stream(), init_output_stream_encode(), init_output_stream_streamcopy(), main(), need_output(), open_output_file(), parse_forced_key_frames(), print_final_stats(), print_report(), print_sdp(), reap_filters(), transcode(), transcode_init(), and transcode_subtitles().

nb_output_files

int nb_output_files = 0

Definition at line 156 of file ffmpeg.c.

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

filtergraphs

FilterGraph** filtergraphs

Definition at line 158 of file ffmpeg.c.

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

nb_filtergraphs

int nb_filtergraphs

Definition at line 159 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), do_video_out(), 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 343 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 344 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 345 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 346 of file ffmpeg.c.

Referenced by ffmpeg_cleanup().

main_return_code

int main_return_code = 0

static

Definition at line 347 of file ffmpeg.c.

Referenced by main(), and write_packet().

copy_ts_first_pts

int64_t copy_ts_first_pts = AV_NOPTS_VALUE

static

Definition at line 348 of file ffmpeg.c.

Referenced by print_report().

int_cb

const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }

Definition at line 513 of file ffmpeg.c.

Referenced by avio_open2(), check_init_output_file(), dump_attachment(), ff_network_sleep_interruptible(), ff_network_wait_fd_timeout(), ffio_open_whitelist(), ffurl_alloc(), ffurl_open_whitelist(), get_preset_file_2(), libsrt_network_wait_fd_timeout(), open_input_file(), open_output_file(), print_sdp(), url_alloc_for_protocol(), and zmq_proto_wait_timeout().