resample.h File Reference

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

Go to the source code of this file.

Data Structures
struct	resample_init_func

Functions
ResampleContext *	ff_audio_resample_init (AVAudioResampleContext *avr)
	Allocate and initialize a ResampleContext.
void	ff_audio_resample_free (ResampleContext **c)
	Free a ResampleContext.
int	ff_audio_resample (ResampleContext *c, AudioData *dst, AudioData *src)
	Resample audio data.

Function Documentation

ResampleContext* ff_audio_resample_init

(

AVAudioResampleContext *

avr

)

Allocate and initialize a ResampleContext.

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

Parameters

avr	AVAudioResampleContext

Returns

newly-allocated ResampleContext

Definition at line 120 of file resample.c.

Referenced by avresample_open().

void ff_audio_resample_free

(

ResampleContext **

c

)

Free a ResampleContext.

Parameters

c	ResampleContext

Definition at line 224 of file resample.c.

Referenced by avresample_close().

int ff_audio_resample	(	ResampleContext *	c,
		AudioData *	dst,
		AudioData *	src
	)

Resample audio data.

Changes the sample rate.

All samples in the source data may not be consumed depending on the resampling parameters and the size of the output buffer. The unconsumed samples are automatically added to the start of the source in the next call. If the destination data can be reallocated, that may be done in this function in order to fit all available output. If it cannot be reallocated, fewer input samples will be consumed in order to have the output fit in the destination data buffers.

Parameters

c	ResampleContext
dst	destination audio data
src	source audio data

Returns

0 on success, negative AVERROR code on failure

Definition at line 393 of file resample.c.

Referenced by avresample_convert().