audioconvert.h File Reference

Audio format conversion routines This interface is deprecated and will be dropped in a future version. More...

#include "version.h"
#include "libavutil/cpu.h"
#include "avcodec.h"
#include "libavutil/channel_layout.h"

Go to the source code of this file.

Functions
attribute_deprecated AVAudioConvert *	av_audio_convert_alloc (enum AVSampleFormat out_fmt, int out_channels, enum AVSampleFormat in_fmt, int in_channels, const float *matrix, int flags)
	Create an audio sample format converter context. More...
attribute_deprecated void	av_audio_convert_free (AVAudioConvert *ctx)
	Free audio sample format converter context. More...
attribute_deprecated int	av_audio_convert (AVAudioConvert *ctx, void *const out[6], const int out_stride[6], const void *const in[6], const int in_stride[6], int len)
	Convert between audio sample formats. More...

Detailed Description

Audio format conversion routines This interface is deprecated and will be dropped in a future version.

You should use the libswresample library instead.

Definition in file audioconvert.h.

Function Documentation

attribute_deprecated AVAudioConvert* av_audio_convert_alloc	(	enum AVSampleFormat	out_fmt,
		int	out_channels,
		enum AVSampleFormat	in_fmt,
		int	in_channels,
		const float *	matrix,
		int	flags
	)

Create an audio sample format converter context.

Parameters

	out_fmt	Output sample format
	out_channels	Number of output channels
	in_fmt	Input sample format
	in_channels	Number of input channels
[in]	matrix	Channel mixing matrix (of dimension in_channel*out_channels). Set to NULL to ignore.
	flags	See AV_CPU_FLAG_xx

Returns

NULL on error

Deprecated:

See libswresample

Definition at line 42 of file audioconvert.c.

Referenced by av_audio_resample_init().

attribute_deprecated void av_audio_convert_free

(

AVAudioConvert *

ctx

)

Free audio sample format converter context.

Deprecated:

See libswresample

Definition at line 58 of file audioconvert.c.

Referenced by audio_resample_close(), and av_audio_resample_init().

attribute_deprecated int av_audio_convert	(	AVAudioConvert *	ctx,
		void *const	out[6],
		const int	out_stride[6],
		const void *const	in[6],
		const int	in_stride[6],
		int	len
	)

Convert between audio sample formats.

Parameters

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

Deprecated:

See libswresample

Definition at line 63 of file audioconvert.c.

Referenced by audio_resample().