libswresample/audioconvert.h File Reference

Audio format conversion routines. More...

#include "swresample_internal.h"
#include "libavutil/cpu.h"
#include "libavutil/audioconvert.h"

Go to the source code of this file.

Data Structures

struct  AudioConvert


typedef void( conv_func_type )(uint8_t *po, const uint8_t *pi, int is, int os, uint8_t *end)
typedef void( simd_func_type )(uint8_t **dst, const uint8_t **src, int len)


AudioConvertswri_audio_convert_alloc (enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags)
 Create an audio sample format converter context.
void swri_audio_convert_free (AudioConvert **ctx)
 Free audio sample format converter context.
int swri_audio_convert (AudioConvert *ctx, AudioData *out, AudioData *in, int len)
 Convert between audio sample formats.

Detailed Description

Audio format conversion routines.

Definition in file audioconvert.h.

Typedef Documentation

typedef void( conv_func_type)(uint8_t *po, const uint8_t *pi, int is, int os, uint8_t *end)

Definition at line 37 of file audioconvert.h.

typedef void( simd_func_type)(uint8_t **dst, const uint8_t **src, int len)

Definition at line 38 of file audioconvert.h.

Function Documentation

int swri_audio_convert ( AudioConvert ctx,
AudioData out,
AudioData in,
int  len 

Convert between audio sample formats.

[in] out array of output buffers for each channel. set to NULL to ignore processing of the given channel.
[in] in array of input buffers for each channel
len length of audio frame size (measured in samples)

Referenced by swr_convert_internal().

AudioConvert* swri_audio_convert_alloc ( enum AVSampleFormat  out_fmt,
enum AVSampleFormat  in_fmt,
int  channels,
const int ch_map,
int  flags 

Create an audio sample format converter context.

out_fmt Output sample format
in_fmt Input sample format
channels Number of channels
flags See AV_CPU_FLAG_xx
ch_map list of the channels id to pick from the source stream, NULL if all channels must be selected
NULL on error

Referenced by swr_init().

void swri_audio_convert_free ( AudioConvert **  ctx  ) 

Free audio sample format converter context.

and set the pointer to NULL

Referenced by swr_free(), and swr_init().

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