transcoding.c File Reference

API example for demuxing, decoding, filtering, encoding and muxing. More...

#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>
#include <libavutil/channel_layout.h>
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>

Go to the source code of this file.

Data Structures
struct	FilteringContext
struct	StreamContext

Functions
static int	open_input_file (const char *filename)
static int	open_output_file (const char *filename)
static int	init_filter (FilteringContext *fctx, AVCodecContext *dec_ctx, AVCodecContext *enc_ctx, const char *filter_spec)
static int	init_filters (void)
static int	encode_write_frame (unsigned int stream_index, int flush)
static int	filter_encode_write_frame (AVFrame *frame, unsigned int stream_index)
static int	flush_encoder (unsigned int stream_index)
int	main (int argc, char **argv)

Variables
static AVFormatContext *	ifmt_ctx
static AVFormatContext *	ofmt_ctx
static FilteringContext *	filter_ctx
static StreamContext *	stream_ctx

Detailed Description

API example for demuxing, decoding, filtering, encoding and muxing.

Definition in file transcoding.c.

Function Documentation

open_input_file()

static int open_input_file ( const char *  filename )

static

Examples

transcoding.c.

Definition at line 59 of file transcoding.c.

Referenced by main().

open_output_file()

static int open_output_file ( const char *  filename )

static

Examples

transcoding.c.

Definition at line 121 of file transcoding.c.

Referenced by main().

init_filter()

static int init_filter ( FilteringContext *  fctx, AVCodecContext *  dec_ctx, AVCodecContext *  enc_ctx, const char *  filter_spec  )

static

Examples

transcoding.c.

Definition at line 237 of file transcoding.c.

Referenced by init_filters().

init_filters()

static int init_filters ( void  )

static

Examples

transcoding.c.

Definition at line 387 of file transcoding.c.

Referenced by main().

encode_write_frame()

static int encode_write_frame ( unsigned int  stream_index, int  flush  )

static

Examples

transcoding.c.

Definition at line 425 of file transcoding.c.

Referenced by filter_encode_write_frame(), and flush_encoder().

filter_encode_write_frame()

static int filter_encode_write_frame ( AVFrame *  frame, unsigned int  stream_index  )

static

Examples

transcoding.c.

Definition at line 462 of file transcoding.c.

Referenced by main().

flush_encoder()

static int flush_encoder ( unsigned int  stream_index )

static

Examples

transcoding.c.

Definition at line 501 of file transcoding.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Examples

transcoding.c.

Definition at line 511 of file transcoding.c.

Variable Documentation

ifmt_ctx

AVFormatContext* ifmt_ctx

static

Examples

remuxing.c, and transcoding.c.

Definition at line 39 of file transcoding.c.

Referenced by init_filters(), main(), open_input_file(), and open_output_file().

ofmt_ctx

AVFormatContext* ofmt_ctx

static

Examples

remuxing.c, and transcoding.c.

Definition at line 40 of file transcoding.c.

Referenced by encode_write_frame(), main(), and open_output_file().

filter_ctx

FilteringContext* filter_ctx

static

Examples

transcoding.c.

Definition at line 49 of file transcoding.c.

Referenced by encode_write_frame(), filter_encode_write_frame(), init_filters(), and main().

stream_ctx

StreamContext* stream_ctx

static

Examples

transcoding.c.

Definition at line 57 of file transcoding.c.

Referenced by encode_write_frame(), flush_encoder(), init_filters(), main(), open_input_file(), and open_output_file().