switchboard::StreamResampler Class Reference

Resampling class for audio streams. More...

#include <StreamResampler.hpp>

Public Member Functions
	StreamResampler (int numberOfChannels)
	Constructor for StreamResampler.
	~StreamResampler ()
	Destructor for StreamResampler.
int	getNumberOfChannels () const
	Gets the number of channels.
double	getRatio () const
	Gets the ratio of output to input sample rates, which is used internally for resampling.
int	getInputSampleRate () const
	Gets the input sample rate.
int	getOutputSampleRate () const
	Gets the output sample rate.
void	setRatio (int inputSampleRate, int outputSampleRate)
	Sets the input and output sample rates.
void	process (const float *inputBuffer, int inputBufferSize, float *outputBuffer, int outputBufferSize, bool endOfInput, long &inputFramesUsed, long &outputFramesGenerated)
	Processes the input audio buffer and generates the output audio buffer.
void	reset ()
	Resets the internal state of the resampler.

Detailed Description

Resampling class for audio streams.

This class is a lightweight wrapper around the libsamplerate library. It provides a simple interface for resampling audio streams in real-time.

Constructor & Destructor Documentation

StreamResampler()

switchboard::StreamResampler::StreamResampler

(

int

numberOfChannels

)

Constructor for StreamResampler.

Parameters

numberOfChannels

The number of audio channels to be resampled.

The numberOfChannels value cannot be changed after the object is created.

Member Function Documentation

getInputSampleRate()

int switchboard::StreamResampler::getInputSampleRate

(

)

const

Gets the input sample rate.

Returns

The input sample rate.

getNumberOfChannels()

int switchboard::StreamResampler::getNumberOfChannels

(

)

const

Gets the number of channels.

Returns

The number of channels.

getOutputSampleRate()

int switchboard::StreamResampler::getOutputSampleRate

(

)

const

Gets the output sample rate.

Returns

The output sample rate.

getRatio()

double switchboard::StreamResampler::getRatio

(

)

const

Gets the ratio of output to input sample rates, which is used internally for resampling.

Returns

The resampling ratio.

process()

void switchboard::StreamResampler::process	(	const float *	inputBuffer,
		int	inputBufferSize,
		float *	outputBuffer,
		int	outputBufferSize,
		bool	endOfInput,
		long &	inputFramesUsed,
		long &	outputFramesGenerated )

Processes the input audio buffer and generates the output audio buffer.

Parameters

inputBuffer	The input audio buffer.
inputBufferSize	The size of the input buffer in frames.
outputBuffer	The output audio buffer.
outputBufferSize	The size of the output buffer in frames.
endOfInput	Indicates if the end of the input stream has been reached.
inputFramesUsed	The number of input frames used for processing from the input buffer.
outputFramesGenerated	The number of output frames generated in the output buffer.

Note, that not all input frames are guaranteed to be used. Always check the value of inputFramesUsed.

reset()

void switchboard::StreamResampler::reset

(

)

Resets the internal state of the resampler.

This method clears any internal buffers and resets the resampling state.

setRatio()

void switchboard::StreamResampler::setRatio	(	int	inputSampleRate,
		int	outputSampleRate )

Sets the input and output sample rates.

Parameters

inputSampleRate	The input sample rate.
outputSampleRate	The output sample rate.

This method sets the input and output sample rates for resampling.