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 "libavcodec/version.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 "sync_queue.h"
#include "libavutil/avassert.h"

Go to the source code of this file.

Data Structures
struct	FrameData
struct	BenchmarkTimeStamps

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

Functions
static int	trigger_fix_sub_duration_heartbeat (OutputStream *ost, const AVPacket *pkt)
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)
static OutputStream *	ost_iter (OutputStream *prev)
InputStream *	ist_iter (InputStream *prev)
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_output_stream (OutputStream *ost)
static int	check_recording_time (OutputStream *ost, int64_t ts, AVRational tb)
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 double	psnr (double d)
static void	update_video_stats (OutputStream *ost, const AVPacket *pkt, int write_vstats)
void	enc_stats_write (OutputStream *ost, EncStats *es, const AVFrame *frame, const AVPacket *pkt, uint64_t frame_num)
static int	encode_frame (OutputFile *of, OutputStream *ost, AVFrame *frame)
static int	submit_encode_frame (OutputFile *of, OutputStream *ost, AVFrame *frame)
static void	do_audio_out (OutputFile *of, OutputStream *ost, AVFrame *frame)
static void	do_subtitle_out (OutputFile *of, OutputStream *ost, AVSubtitle *sub)
static void	video_sync_process (OutputFile *of, OutputStream *ost, AVFrame *next_picture, double duration, int64_t *nb_frames, int64_t *nb_frames_prev)
static enum AVPictureType	forced_kf_apply (void *logctx, KeyframeForceCtx *kf, AVRational tb, const AVFrame *in_picture, int dup_idx)
static void	do_video_out (OutputFile *of, OutputStream *ost, AVFrame *next_picture)
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 int	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)
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 (InputStream *ist, 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	process_subtitle (InputStream *ist, AVSubtitle *subtitle, int *got_output)
static int	copy_av_subtitle (AVSubtitle *dst, AVSubtitle *src)
static int	fix_sub_duration_heartbeat (InputStream *ist, int64_t signal_pts)
static int	transcode_subtitles (InputStream *ist, const 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 enum AVPixelFormat	get_format (AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
static int	init_input_stream (InputStream *ist, char *error, int error_len)
static int	init_output_stream_streamcopy (OutputStream *ost)
static void	set_encoder_id (OutputFile *of, OutputStream *ost)
static void	init_encoder_time_base (OutputStream *ost, AVRational default_time_base)
static int	init_output_stream_encode (OutputStream *ost, AVFrame *frame)
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	got_eagain (void)
static void	reset_eagain (void)
static void	decode_flush (InputFile *ifile)
static void	ts_discontinuity_detect (InputFile *ifile, InputStream *ist, AVPacket *pkt)
static void	ts_discontinuity_process (InputFile *ifile, InputStream *ist, AVPacket *pkt)
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)
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
static int64_t	nb_frames_dup = 0
static uint64_t	dup_warning = 1000
static int64_t	nb_frames_drop = 0
static int64_t	decode_error_stat [2]
unsigned	nb_output_dumped = 0
static BenchmarkTimeStamps	current_time
AVIOContext *	progress_avio = NULL
InputFile **	input_files = NULL
int	nb_input_files = 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
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 391 of file ffmpeg.c.

Function Documentation

trigger_fix_sub_duration_heartbeat()

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

static

Definition at line 2484 of file ffmpeg.c.

Referenced by do_streamcopy(), and encode_frame().

get_benchmark_time_stamps()

static BenchmarkTimeStamps get_benchmark_time_stamps ( void  )

static

Definition at line 4094 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

getmaxrss()

static int64_t getmaxrss ( void  )

static

Definition at line 4120 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 1966 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 164 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 179 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 210 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 228 of file ffmpeg.c.

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

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 300 of file ffmpeg.c.

Referenced by transcode_subtitles().

term_exit_sigsafe()

static void term_exit_sigsafe ( void  )

static

Definition at line 316 of file ffmpeg.c.

Referenced by sigterm_handler(), and term_exit().

term_exit()

void term_exit

(

void

)

Definition at line 324 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 338 of file ffmpeg.c.

Referenced by term_init().

term_init()

void term_init

(

void

)

Definition at line 395 of file ffmpeg.c.

Referenced by assert_file_overwrite().

read_key()

static int read_key ( void  )

static

Definition at line 444 of file ffmpeg.c.

Referenced by check_keyboard_interaction().

decode_interrupt_cb()

static int decode_interrupt_cb ( void *  ctx )

static

Definition at line 495 of file ffmpeg.c.

ffmpeg_cleanup()

static void ffmpeg_cleanup ( int  ret )

static

Definition at line 502 of file ffmpeg.c.

Referenced by main().

ost_iter()

static OutputStream* ost_iter ( OutputStream *  prev )

static

Definition at line 588 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), choose_output(), flush_encoders(), got_eagain(), need_output(), print_final_stats(), print_report(), process_input(), process_input_packet(), process_subtitle(), reap_filters(), reset_eagain(), transcode(), and transcode_init().

ist_iter()

InputStream* ist_iter

(

InputStream *

prev

)

Definition at line 604 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), init_input_filter(), map_auto_data(), map_auto_subtitle(), transcode(), and transcode_init().

remove_avoptions()

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

Definition at line 620 of file ffmpeg.c.

Referenced by ifile_open().

assert_avoptions()

void assert_avoptions

(

AVDictionary *

m

)

Definition at line 629 of file ffmpeg.c.

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

abort_codec_experimental()

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

static

Definition at line 638 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 643 of file ffmpeg.c.

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

close_output_stream()

static void close_output_stream ( OutputStream *  ost )

static

Definition at line 664 of file ffmpeg.c.

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

check_recording_time()

static int check_recording_time ( OutputStream *  ost, int64_t  ts, AVRational  tb  )

static

Definition at line 673 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 685 of file ffmpeg.c.

Referenced by video_sync_process().

init_output_stream()

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

static

Definition at line 3203 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 730 of file ffmpeg.c.

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

psnr()

static double psnr ( double  d )

static

Definition at line 751 of file ffmpeg.c.

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

update_video_stats()

static void update_video_stats ( OutputStream *  ost, const AVPacket *  pkt, int  write_vstats  )

static

Definition at line 756 of file ffmpeg.c.

Referenced by encode_frame().

enc_stats_write()

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

Definition at line 811 of file ffmpeg.c.

Referenced by encode_frame(), and write_packet().

encode_frame()

static int encode_frame ( OutputFile *  of, OutputStream *  ost, AVFrame *  frame  )

static

Definition at line 877 of file ffmpeg.c.

Referenced by submit_encode_frame().

submit_encode_frame()

static int submit_encode_frame ( OutputFile *  of, OutputStream *  ost, AVFrame *  frame  )

static

Definition at line 979 of file ffmpeg.c.

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

do_audio_out()

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

static

Definition at line 1025 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 1051 of file ffmpeg.c.

Referenced by process_subtitle().

video_sync_process()

static void video_sync_process ( OutputFile *  of, OutputStream *  ost, AVFrame *  next_picture, double  duration, int64_t *  nb_frames, int64_t *  nb_frames_prev  )

static

Definition at line 1132 of file ffmpeg.c.

Referenced by do_video_out().

forced_kf_apply()

static enum AVPictureType forced_kf_apply ( void *  logctx, KeyframeForceCtx *  kf, AVRational  tb, const AVFrame *  in_picture, int  dup_idx  )

static

Definition at line 1201 of file ffmpeg.c.

Referenced by do_video_out().

do_video_out()

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

static

Definition at line 1253 of file ffmpeg.c.

Referenced by reap_filters().

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 1361 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 1449 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 1569 of file ffmpeg.c.

Referenced by transcode().

ifilter_parameters_from_codecpar()

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

static

Definition at line 1766 of file ffmpeg.c.

Referenced by flush_encoders(), and ifilter_send_eof().

flush_encoders()

static void flush_encoders ( void  )

static

Definition at line 1784 of file ffmpeg.c.

Referenced by transcode().

check_output_constraints()

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

static

Definition at line 1847 of file ffmpeg.c.

Referenced by process_input_packet(), and process_subtitle().

do_streamcopy()

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

static

Definition at line 1863 of file ffmpeg.c.

Referenced by process_input_packet().

check_decode_result()

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

static

Definition at line 1947 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 1977 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 2057 of file ffmpeg.c.

Referenced by send_filter_eof().

decode()

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

static

Definition at line 2087 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 2127 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 2145 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 2202 of file ffmpeg.c.

Referenced by process_input_packet().

process_subtitle()

static int process_subtitle ( InputStream *  ist, AVSubtitle *  subtitle, int *  got_output  )

static

Definition at line 2326 of file ffmpeg.c.

Referenced by fix_sub_duration_heartbeat(), and transcode_subtitles().

copy_av_subtitle()

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

static

Definition at line 2385 of file ffmpeg.c.

Referenced by fix_sub_duration_heartbeat().

fix_sub_duration_heartbeat()

static int fix_sub_duration_heartbeat ( InputStream *  ist, int64_t  signal_pts  )

static

Definition at line 2465 of file ffmpeg.c.

Referenced by new_output_stream(), and trigger_fix_sub_duration_heartbeat().

transcode_subtitles()

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

static

Definition at line 2515 of file ffmpeg.c.

Referenced by process_input_packet().

send_filter_eof()

static int send_filter_eof ( InputStream *  ist )

static

Definition at line 2536 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 2552 of file ffmpeg.c.

Referenced by decode_flush(), process_input(), and transcode().

get_format()

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

static

Definition at line 2744 of file ffmpeg.c.

Referenced by init_input_stream().

init_input_stream()

static int init_input_stream ( InputStream *  ist, char *  error, int  error_len  )

static

Definition at line 2793 of file ffmpeg.c.

Referenced by transcode_init().

init_output_stream_streamcopy()

static int init_output_stream_streamcopy ( OutputStream *  ost )

static

Definition at line 2852 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 2982 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 3005 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 3028 of file ffmpeg.c.

Referenced by init_output_stream().

transcode_init()

static int transcode_init ( void  )

static

Definition at line 3315 of file ffmpeg.c.

Referenced by transcode().

need_output()

static int need_output ( void  )

static

Definition at line 3455 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 3472 of file ffmpeg.c.

Referenced by transcode_step().

set_tty_echo()

static void set_tty_echo ( int  on )

static

Definition at line 3502 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 3514 of file ffmpeg.c.

Referenced by transcode().

got_eagain()

static int got_eagain ( void  )

static

Definition at line 3623 of file ffmpeg.c.

Referenced by movie_request_frame(), and transcode_step().

reset_eagain()

static void reset_eagain ( void  )

static

Definition at line 3631 of file ffmpeg.c.

Referenced by process_input(), and transcode_step().

decode_flush()

static void decode_flush ( InputFile *  ifile )

static

Definition at line 3640 of file ffmpeg.c.

Referenced by process_input().

ts_discontinuity_detect()

static void ts_discontinuity_detect ( InputFile *  ifile, InputStream *  ist, AVPacket *  pkt  )

static

Definition at line 3671 of file ffmpeg.c.

Referenced by ts_discontinuity_process().

ts_discontinuity_process()

static void ts_discontinuity_process ( InputFile *  ifile, InputStream *  ist, AVPacket *  pkt  )

static

Definition at line 3735 of file ffmpeg.c.

Referenced by process_input().

process_input()

static int process_input ( int  file_index )

static

Definition at line 3762 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 3872 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 3918 of file ffmpeg.c.

Referenced by transcode().

transcode()

static int transcode ( void  )

static

Definition at line 4008 of file ffmpeg.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 4138 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 111 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 112 of file ffmpeg.c.

vstats_file

FILE* vstats_file

static

Definition at line 114 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), and update_video_stats().

nb_frames_dup

int64_t nb_frames_dup = 0

static

Definition at line 134 of file ffmpeg.c.

Referenced by do_video_out(), and print_report().

dup_warning

uint64_t dup_warning = 1000

static

Definition at line 135 of file ffmpeg.c.

Referenced by do_video_out().

nb_frames_drop

int64_t nb_frames_drop = 0

static

Definition at line 136 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 137 of file ffmpeg.c.

Referenced by check_decode_result(), and main().

nb_output_dumped

unsigned nb_output_dumped = 0

Definition at line 138 of file ffmpeg.c.

Referenced by mux_check_init(), and print_report().

current_time

BenchmarkTimeStamps current_time

static

Definition at line 140 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

progress_avio

AVIOContext* progress_avio = NULL

Definition at line 141 of file ffmpeg.c.

Referenced by print_report().

input_files

InputFile** input_files = NULL

Definition at line 143 of file ffmpeg.c.

Referenced by apply_sync_offsets(), assert_file_overwrite(), check_decode_result(), configure_input_audio_filter(), configure_input_video_filter(), copy_meta(), correct_input_start_times(), do_streamcopy(), ffmpeg_cleanup(), ifile_open(), init_input_filter(), init_output_stream_streamcopy(), ist_iter(), map_auto_audio(), map_auto_video(), map_manual(), new_video_stream(), opt_map(), opt_map_channel(), opt_target(), print_final_stats(), process_input(), 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 144 of file ffmpeg.c.

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

output_files

OutputFile** output_files = NULL

Definition at line 146 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(), flush_encoders(), init_output_stream(), init_output_stream_encode(), init_output_stream_streamcopy(), mux_alloc(), mux_check_init(), new_video_stream(), ost_iter(), print_final_stats(), print_report(), print_sdp(), process_input(), process_subtitle(), reap_filters(), transcode(), and trigger_fix_sub_duration_heartbeat().

nb_output_files

int nb_output_files = 0

Definition at line 147 of file ffmpeg.c.

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

filtergraphs

FilterGraph** filtergraphs

Definition at line 149 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), create_streams(), do_video_out(), ffmpeg_cleanup(), init_complex_filters(), init_simple_filtergraph(), map_manual(), opt_filter_complex(), and opt_filter_complex_script().

nb_filtergraphs

int nb_filtergraphs

Definition at line 150 of file ffmpeg.c.

Referenced by check_filter_outputs(), check_keyboard_interaction(), create_streams(), do_video_out(), ffmpeg_cleanup(), init_complex_filters(), init_simple_filtergraph(), map_manual(), opt_filter_complex(), opt_filter_complex_script(), and transcode_init().

received_sigterm

volatile int received_sigterm = 0

static

Definition at line 330 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 331 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 332 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 333 of file ffmpeg.c.

Referenced by ffmpeg_cleanup().

main_return_code

int main_return_code = 0

Definition at line 334 of file ffmpeg.c.

Referenced by main(), and of_write_trailer().

copy_ts_first_pts

int64_t copy_ts_first_pts = AV_NOPTS_VALUE

static

Definition at line 335 of file ffmpeg.c.

Referenced by print_report().

int_cb

const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }

Definition at line 500 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().