filter_audio.c File Reference

libavfilter API usage example. More...

#include <inttypes.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "libavutil/channel_layout.h"
#include "libavutil/md5.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/buffersink.h"
#include "libavfilter/buffersrc.h"

Go to the source code of this file.

Macros
#define	INPUT_SAMPLERATE   48000
#define	INPUT_FORMAT   AV_SAMPLE_FMT_FLTP
#define	INPUT_CHANNEL_LAYOUT   (AVChannelLayout)AV_CHANNEL_LAYOUT_5POINT0
#define	VOLUME_VAL   0.90
#define	FRAME_SIZE   1024

Functions
static int	init_filter_graph (AVFilterGraph **graph, AVFilterContext **src, AVFilterContext **sink)
static int	process_output (struct AVMD5 *md5, AVFrame *frame)
static int	get_input (AVFrame *frame, int frame_num)
int	main (int argc, char *argv[])

Detailed Description

libavfilter API usage example.

Definition in file filter_audio.c.

Macro Definition Documentation

INPUT_SAMPLERATE

#define INPUT_SAMPLERATE   48000

Examples

filter_audio.c.

Definition at line 56 of file filter_audio.c.

INPUT_FORMAT

#define INPUT_FORMAT   AV_SAMPLE_FMT_FLTP

Examples

filter_audio.c.

Definition at line 57 of file filter_audio.c.

INPUT_CHANNEL_LAYOUT

#define INPUT_CHANNEL_LAYOUT   (AVChannelLayout)AV_CHANNEL_LAYOUT_5POINT0

Examples

filter_audio.c.

Definition at line 58 of file filter_audio.c.

VOLUME_VAL

#define VOLUME_VAL   0.90

Examples

filter_audio.c.

Definition at line 60 of file filter_audio.c.

FRAME_SIZE

#define FRAME_SIZE   1024

Examples

filter_audio.c.

Function Documentation

init_filter_graph()

static int init_filter_graph ( AVFilterGraph **  graph, AVFilterContext **  src, AVFilterContext **  sink  )

static

Examples

filter_audio.c.

Definition at line 62 of file filter_audio.c.

Referenced by main().

process_output()

static int process_output ( struct AVMD5 *  md5, AVFrame *  frame  )

static

Examples

filter_audio.c.

Definition at line 214 of file filter_audio.c.

Referenced by main().

get_input()

static int get_input ( AVFrame *  frame, int  frame_num  )

static

Examples

filter_audio.c.

Definition at line 241 of file filter_audio.c.

Referenced by main().

main()

int main	(	int	argc,
		char *	argv[]
	)

Examples

filter_audio.c.

Definition at line 269 of file filter_audio.c.