dither.h File Reference

#include "avresample.h"
#include "audio_data.h"

Go to the source code of this file.

Data Structures
struct	DitherDSPContext

Functions
DitherContext *	ff_dither_alloc (AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map)
	Allocate and initialize a DitherContext. More...
void	ff_dither_free (DitherContext **c)
	Free a DitherContext. More...
int	ff_convert_dither (DitherContext *c, AudioData *dst, AudioData *src)
	Convert audio sample format with dithering. More...
void	ff_dither_init_x86 (DitherDSPContext *ddsp, enum AVResampleDitherMethod method)

Function Documentation

ff_dither_alloc()

DitherContext* ff_dither_alloc	(	AVAudioResampleContext *	avr,
		enum AVSampleFormat	out_fmt,
		enum AVSampleFormat	in_fmt,
		int	channels,
		int	sample_rate,
		int	apply_map
	)

Allocate and initialize a DitherContext.

The parameters in the AVAudioResampleContext are used to initialize the DitherContext.

Parameters

avr	AVAudioResampleContext

Returns

newly-allocated DitherContext

Definition at line 345 of file dither.c.

ff_dither_free()

void ff_dither_free

(

DitherContext **

c

)

Free a DitherContext.

Parameters

c	DitherContext

Definition at line 312 of file dither.c.

Referenced by ff_dither_alloc().

ff_convert_dither()

int ff_convert_dither	(	DitherContext *	c,
		AudioData *	dst,
		AudioData *	src
	)

Convert audio sample format with dithering.

Parameters

c	DitherContext
dst	destination audio data
src	source audio data

Returns

0 if ok, negative AVERROR code on failure

Definition at line 242 of file dither.c.

ff_dither_init_x86()

void ff_dither_init_x86	(	DitherDSPContext *	ddsp,
		enum AVResampleDitherMethod	method
	)

Definition at line 34 of file dither_init.c.

Referenced by dither_init().