filtering_video.c File Reference

API example for decoding and filtering. More...

#include <unistd.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavfilter/avfiltergraph.h>
#include <libavfilter/avcodec.h>
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>

Go to the source code of this file.

Macros
#define	_XOPEN_SOURCE   600 /* for usleep */

Functions
static int	open_input_file (const char *filename)
static int	init_filters (const char *filters_descr)
static void	display_frame (const AVFrame *frame, AVRational time_base)
int	main (int argc, char **argv)

Variables
const char *	filter_descr = "scale=78:24"
static AVFormatContext *	fmt_ctx
static AVCodecContext *	dec_ctx
AVFilterContext *	buffersink_ctx
AVFilterContext *	buffersrc_ctx
AVFilterGraph *	filter_graph
static int	video_stream_index = -1
static int64_t	last_pts = AV_NOPTS_VALUE

Detailed Description

API example for decoding and filtering.

Definition in file filtering_video.c.

Macro Definition Documentation

#define _XOPEN_SOURCE   600 /* for usleep */

Definition at line 30 of file filtering_video.c.

Function Documentation

static int open_input_file ( const char *  filename )

static

Definition at line 50 of file filtering_video.c.

Referenced by main().

static int init_filters ( const char *  filters_descr )

static

Definition at line 83 of file filtering_video.c.

Referenced by main().

static void display_frame ( const AVFrame *  frame, AVRational  time_base  )

static

Examples:

doc/examples/filtering_video.c.

Definition at line 141 of file filtering_video.c.

Referenced by main().

int main	(	int	argc,
		char **	argv
	)

Definition at line 172 of file filtering_video.c.

Variable Documentation

const char* filter_descr = "scale=78:24"

Examples:

doc/examples/filtering_audio.c, and doc/examples/filtering_video.c.

Definition at line 40 of file filtering_video.c.

Referenced by main().

AVFormatContext* fmt_ctx

static

Definition at line 42 of file filtering_video.c.

AVCodecContext* dec_ctx

static

Definition at line 43 of file filtering_video.c.

AVFilterContext* buffersink_ctx

Definition at line 44 of file filtering_video.c.

AVFilterContext* buffersrc_ctx

Definition at line 45 of file filtering_video.c.

AVFilterGraph* filter_graph

Definition at line 46 of file filtering_video.c.

int video_stream_index = -1

static

Examples:

doc/examples/filtering_video.c.

Definition at line 47 of file filtering_video.c.

Referenced by main(), and open_input_file().

int64_t last_pts = AV_NOPTS_VALUE

static

Examples:

doc/examples/filtering_video.c.

Definition at line 48 of file filtering_video.c.

Referenced by display_frame(), find_and_decode_index(), and write_index().