#include <stdint.h>
#include "libavutil/samplefmt.h"
#include "avresample.h"
#include "internal.h"
#include "audio_data.h"

Typedefs
typedef void(	mix_func )(uint8_t src, void matrix, int len, int out_ch, int in_ch)

Functions
void	ff_audio_mix_set_func (AudioMix am, enum AVSampleFormat fmt, enum AVMixCoeffType coeff_type, int in_channels, int out_channels, int ptr_align, int samples_align, const char descr, void *mix_func)
	Set mixing function if the parameters match.

AudioMix *	ff_audio_mix_alloc (AVAudioResampleContext *avr)
	Allocate and initialize an AudioMix context.

void	ff_audio_mix_free (AudioMix **am)
	Free an AudioMix context.

int	ff_audio_mix (AudioMix am, AudioData src)
	Apply channel mixing to audio data using the current mixing matrix.

int	ff_audio_mix_get_matrix (AudioMix am, double matrix, int stride)
	Get the current mixing matrix.

int	ff_audio_mix_set_matrix (AudioMix am, const double matrix, int stride)
	Set the current mixing matrix.

void	ff_audio_mix_init_x86 (AudioMix *am)

Typedef Documentation

typedef void( mix_func)(uint8_t **src, void **matrix, int len, int out_ch, int in_ch)

Definition at line 31 of file audio_mix.h.

Function Documentation

void ff_audio_mix_set_func	(	AudioMix *	am,
		enum AVSampleFormat	fmt,
		enum AVMixCoeffType	coeff_type,
		int	in_channels,
		int	out_channels,
		int	ptr_align,
		int	samples_align,
		const char *	descr,
		void *	mix_func
	)

Set mixing function if the parameters match.

This compares the parameters of the mixing function to the parameters in the AudioMix context. If the parameters do not match, no changes are made to the active functions. If the parameters do match and the alignment is not constrained, the function is set as the generic mixing function. If the parameters match and the alignment is constrained, the function is set as the optimized mixing function.

Parameters

am	AudioMix context
fmt	input/output sample format
coeff_type	mixing coefficient type
in_channels	number of input channels, or 0 for any number of channels
out_channels	number of output channels, or 0 for any number of channels
ptr_align	buffer pointer alignment, in bytes
samples_align	buffer size alignment, in samples
descr	function type description (e.g. "C" or "SSE")
mix_func	mixing function pointer