ffmpeg.c File Reference

#include "config.h"
#include <errno.h>
#include <limits.h>
#include <stdatomic.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/channel_layout.h"
#include "libavutil/dict.h"
#include "libavutil/display.h"
#include "libavutil/fifo.h"
#include "libavutil/hwcontext.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/libm.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/samplefmt.h"
#include "libavutil/thread.h"
#include "libavutil/threadmessage.h"
#include "libavutil/timestamp.h"
#include "libavcodec/version.h"
#include "libavformat/avformat.h"
#include "libavdevice/avdevice.h"
#include "libswresample/swresample.h"
#include "cmdutils.h"
#include "ffmpeg.h"
#include "ffmpeg_sched.h"
#include "ffmpeg_utils.h"
#include "sync_queue.h"

Go to the source code of this file.

Data Structures
struct	BenchmarkTimeStamps

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

Functions
static BenchmarkTimeStamps	get_benchmark_time_stamps (void)
static int64_t	getmaxrss (void)
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)
OutputStream *	ost_iter (OutputStream *prev)
InputStream *	ist_iter (InputStream *prev)
static void	frame_data_free (void *opaque, uint8_t *data)
static int	frame_data_ensure (AVBufferRef **dst, int writable)
FrameData *	frame_data (AVFrame *frame)
	Get our axiliary frame data attached to the frame, allocating it if needed. More...
const FrameData *	frame_data_c (AVFrame *frame)
FrameData *	packet_data (AVPacket *pkt)
const FrameData *	packet_data_c (AVPacket *pkt)
void	remove_avoptions (AVDictionary **a, AVDictionary *b)
int	check_avoptions (AVDictionary *m)
void	update_benchmark (const char *fmt,...)
static void	print_report (int is_last_report, int64_t timer_start, int64_t cur_time, int64_t pts)
static void	print_stream_maps (void)
static void	set_tty_echo (int on)
static int	check_keyboard_interaction (int64_t cur_time)
static int	transcode (Scheduler *sch)
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...
FILE *	vstats_file
atomic_uint	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
Decoder **	decoders
int	nb_decoders
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 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 218 of file ffmpeg.c.

Function Documentation

get_benchmark_time_stamps()

static BenchmarkTimeStamps get_benchmark_time_stamps ( void  )

static

Definition at line 886 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

getmaxrss()

static int64_t getmaxrss ( void  )

static

Definition at line 912 of file ffmpeg.c.

Referenced by ffmpeg_cleanup().

term_exit_sigsafe()

static void term_exit_sigsafe ( void  )

static

Definition at line 144 of file ffmpeg.c.

Referenced by sigterm_handler(), and term_exit().

term_exit()

void term_exit

(

void

)

Definition at line 152 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 165 of file ffmpeg.c.

Referenced by term_init().

term_init()

void term_init

(

void

)

Definition at line 222 of file ffmpeg.c.

Referenced by assert_file_overwrite().

read_key()

static int read_key ( void  )

static

Definition at line 271 of file ffmpeg.c.

Referenced by check_keyboard_interaction().

decode_interrupt_cb()

static int decode_interrupt_cb ( void *  ctx )

static

Definition at line 323 of file ffmpeg.c.

ffmpeg_cleanup()

static void ffmpeg_cleanup ( int  ret )

static

Definition at line 330 of file ffmpeg.c.

Referenced by main().

ost_iter()

OutputStream* ost_iter

(

OutputStream *

prev

)

Definition at line 381 of file ffmpeg.c.

Referenced by print_report(), and print_stream_maps().

ist_iter()

InputStream* ist_iter

(

InputStream *

prev

)

Definition at line 397 of file ffmpeg.c.

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

frame_data_free()

static void frame_data_free ( void *  opaque, uint8_t *  data  )

static

Definition at line 413 of file ffmpeg.c.

Referenced by frame_data_ensure().

frame_data_ensure()

static int frame_data_ensure ( AVBufferRef **  dst, int  writable  )

static

Definition at line 422 of file ffmpeg.c.

Referenced by frame_data(), frame_data_c(), packet_data(), and packet_data_c().

frame_data()

FrameData* frame_data

(

AVFrame *

frame

)

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

Definition at line 474 of file ffmpeg.c.

Referenced by close_output(), dwt_plane(), encode_frame(), fg_output_step(), generate_raw_frame(), nvenc_retrieve_frame_data(), nvenc_store_frame_data(), packet_decode(), and send_frame().

frame_data_c()

const FrameData* frame_data_c

(

AVFrame *

frame

)

Definition at line 480 of file ffmpeg.c.

Referenced by choose_out_timebase().

packet_data()

FrameData* packet_data

(

AVPacket *

pkt

)

Definition at line 486 of file ffmpeg.c.

Referenced by encode_frame(), input_packet_process(), and packet_decode().

packet_data_c()

const FrameData* packet_data_c

(

AVPacket *

pkt

)

Definition at line 492 of file ffmpeg.c.

remove_avoptions()

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

Definition at line 498 of file ffmpeg.c.

Referenced by ifile_open().

check_avoptions()

int check_avoptions

(

AVDictionary *

m

)

Definition at line 507 of file ffmpeg.c.

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

update_benchmark()

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

Definition at line 518 of file ffmpeg.c.

Referenced by encode_frame(), and packet_decode().

print_report()

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

static

Definition at line 539 of file ffmpeg.c.

Referenced by transcode().

print_stream_maps()

static void print_stream_maps ( void  )

static

Definition at line 689 of file ffmpeg.c.

Referenced by transcode().

set_tty_echo()

static void set_tty_echo ( int  on )

static

Definition at line 765 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 777 of file ffmpeg.c.

Referenced by transcode().

transcode()

static int transcode ( Scheduler *  sch )

static

Definition at line 839 of file ffmpeg.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 930 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 106 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 107 of file ffmpeg.c.

vstats_file

FILE* vstats_file

Definition at line 109 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), and update_video_stats().

nb_output_dumped

atomic_uint nb_output_dumped = 0

Definition at line 120 of file ffmpeg.c.

Referenced by mux_check_init(), and print_report().

current_time

BenchmarkTimeStamps current_time

static

Definition at line 122 of file ffmpeg.c.

Referenced by main(), and update_benchmark().

progress_avio

AVIOContext* progress_avio = NULL

Definition at line 123 of file ffmpeg.c.

Referenced by print_report().

input_files

InputFile** input_files = NULL

Definition at line 125 of file ffmpeg.c.

Referenced by apply_sync_offsets(), assert_file_overwrite(), copy_meta(), correct_input_start_times(), demux_alloc(), ffmpeg_cleanup(), fg_complex_bind_input(), ist_iter(), map_auto_audio(), map_auto_video(), map_manual(), opt_map(), and opt_target().

nb_input_files

int nb_input_files = 0

Definition at line 126 of file ffmpeg.c.

Referenced by apply_sync_offsets(), assert_file_overwrite(), copy_meta(), correct_input_start_times(), demux_alloc(), ffmpeg_cleanup(), fg_complex_bind_input(), ist_iter(), main(), map_auto_audio(), map_auto_video(), opt_map(), and opt_target().

output_files

OutputFile** output_files = NULL

Definition at line 128 of file ffmpeg.c.

Referenced by dec_create(), ffmpeg_cleanup(), mux_alloc(), new_stream_video(), ost_iter(), print_report(), print_sdp(), and transcode().

nb_output_files

int nb_output_files = 0

Definition at line 129 of file ffmpeg.c.

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

filtergraphs

FilterGraph** filtergraphs

Definition at line 131 of file ffmpeg.c.

Referenced by check_keyboard_interaction(), create_streams(), ffmpeg_cleanup(), fg_create(), fg_finalise_bindings(), and map_manual().

nb_filtergraphs

int nb_filtergraphs

Definition at line 132 of file ffmpeg.c.

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

decoders

Decoder** decoders

Definition at line 134 of file ffmpeg.c.

Referenced by dec_create(), ffmpeg_cleanup(), and fg_complex_bind_input().

nb_decoders

int nb_decoders

Definition at line 135 of file ffmpeg.c.

Referenced by dec_create(), ffmpeg_cleanup(), and fg_complex_bind_input().

received_sigterm

volatile int received_sigterm = 0

static

Definition at line 158 of file ffmpeg.c.

Referenced by ffmpeg_cleanup(), and sigterm_handler().

received_nb_signals

volatile int received_nb_signals = 0

static

Definition at line 159 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 160 of file ffmpeg.c.

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

ffmpeg_exited

volatile int ffmpeg_exited = 0

static

Definition at line 161 of file ffmpeg.c.

Referenced by ffmpeg_cleanup().

copy_ts_first_pts

int64_t copy_ts_first_pts = AV_NOPTS_VALUE

static

Definition at line 162 of file ffmpeg.c.

Referenced by print_report().

int_cb

const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }

Definition at line 328 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().