Mixer Class Reference

This abstract class is able to mix audiosignals with same channel count and sample rate and convert it to a specific output format. More...

#include <Mixer.h>

Public Member Functions
	Mixer (DeviceSpecs specs)
	Creates the mixer.
virtual	~Mixer ()
	Destroys the mixer.
DeviceSpecs	getSpecs () const
	Returns the target specification for superposing.
void	setSpecs (Specs specs)
	Sets the target specification for superposing.
void	setSpecs (DeviceSpecs specs)
	Sets the target specification for superposing.
void	mix (sample_t *buffer, int start, int length, float volume)
	Mixes a buffer.
void	mix (sample_t *buffer, int start, int length, float volume_to, float volume_from)
	Mixes a buffer with linear volume interpolation.
void	read (data_t *buffer, float volume)
	Writes the mixing buffer into an output buffer.
void	clear (int length)
	Clears the mixing buffer.

Protected Attributes
DeviceSpecs	m_specs
	The output specification.
int	m_length
	The length of the mixing buffer.
Buffer	m_buffer
	The mixing buffer.
convert_f	m_convert
	Converter function.

Detailed Description

This abstract class is able to mix audiosignals with same channel count and sample rate and convert it to a specific output format.

Member Function Documentation

clear()

void Mixer::clear

(

int

length

)

Clears the mixing buffer.

Parameters

length

The length of the buffer in samples.

getSpecs()

DeviceSpecs Mixer::getSpecs

(

)

const

Returns the target specification for superposing.

Returns

The target specification.

mix() [1/2]

void Mixer::mix	(	sample_t *	buffer,
		int	start,
		int	length,
		float	volume )

Mixes a buffer.

Parameters

buffer	The buffer to superpose.
start	The start sample of the buffer.
length	The length of the buffer in samples.
volume	The mixing volume. Must be a value between 0.0 and 1.0.

mix() [2/2]

void Mixer::mix	(	sample_t *	buffer,
		int	start,
		int	length,
		float	volume_to,
		float	volume_from )

Mixes a buffer with linear volume interpolation.

Parameters

buffer	The buffer to superpose.
start	The start sample of the buffer.
length	The length of the buffer in samples.
volume_to	The target mixing volume. Must be a value between 0.0 and 1.0.
volume_from	The start mixing volume. Must be a value between 0.0 and 1.0.

read()

void Mixer::read	(	data_t *	buffer,
		float	volume )

Writes the mixing buffer into an output buffer.

Parameters

buffer	The target buffer for superposing.
volume	The mixing volume. Must be a value between 0.0 and 1.0.

setSpecs() [1/2]

void Mixer::setSpecs

(

DeviceSpecs

specs

)

Sets the target specification for superposing.

Parameters

specs

The target specification.

setSpecs() [2/2]

void Mixer::setSpecs

(

Specs

specs

)

Sets the target specification for superposing.

Parameters

specs

The target specification.

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The documentation for this class was generated from the following file:

• respec/Mixer.h