Audio::ISampleRateConverter Class Reference

#include <SampleRateConverter.h>

Inheritance diagram for Audio::ISampleRateConverter:

Public Member Functions
virtual	~ISampleRateConverter ()
virtual void	Init (const float InSampleRateRatio, const int32 InNumChannels)=0
virtual void	SetSampleRateRatio (const float InSampleRateRatio, const int32 NumInterpolationFrames=0)=0
virtual int32	ProcessFullbuffer (const int16 *InBuffer, const int32 InNumSamples, TArray< float > &OutBuffer)=0
virtual int32	ProcessFullbuffer (const float *InBuffer, const int32 InNumSamples, TArray< float > &OutBuffer)=0
virtual int32	ProcessChunk (const int16 *BufferChunk, const int32 NumInputSamples, const int32 RequestedFrames, TArray< float > &OutBuffer)=0
virtual int32	ProcessChunk (const float *BufferChunk, const int32 NumInputSamples, const int32 RequestedFrames, TArray< float > &OutBuffer)=0

Static Public Member Functions
static SIGNALPROCESSING_API ISampleRateConverter *	CreateSampleRateConverter ()

Constructor & Destructor Documentation

~ISampleRateConverter()

virtual Audio::ISampleRateConverter::~ISampleRateConverter ( )

inlinevirtual

Member Function Documentation

CreateSampleRateConverter()

ISampleRateConverter * Audio::ISampleRateConverter::CreateSampleRateConverter ( )

static

Init()

virtual void Audio::ISampleRateConverter::Init ( const float  InSampleRateRatio, const int32  InNumChannels  )

pure virtual

Implemented in Audio::FSampleRateConverter.

ProcessChunk() [1/2]

virtual int32 Audio::ISampleRateConverter::ProcessChunk ( const float *  BufferChunk, const int32  NumInputSamples, const int32  RequestedFrames, TArray< float > &  OutBuffer  )

pure virtual

Implemented in Audio::FSampleRateConverter.

ProcessChunk() [2/2]

virtual int32 Audio::ISampleRateConverter::ProcessChunk ( const int16 *  BufferChunk, const int32  NumInputSamples, const int32  RequestedFrames, TArray< float > &  OutBuffer  )

pure virtual

Process chunks of audio at a time. Saves state so can properly handle buffer boundaries. Use with Reset() to reset internal state before starting realtime SRC.

Parameters

BufferChunk	Input audio buffer chunk
NumInputSamples	Number of input samples.
RequestedFrames	Number of frames requested to process
OutBuffer	The output buffer of converted audio.

Returns

Number of frames generated.

Implemented in Audio::FSampleRateConverter.

ProcessFullbuffer() [1/2]

virtual int32 Audio::ISampleRateConverter::ProcessFullbuffer ( const float *  InBuffer, const int32  InNumSamples, TArray< float > &  OutBuffer  )

pure virtual

Implemented in Audio::FSampleRateConverter.

ProcessFullbuffer() [2/2]

virtual int32 Audio::ISampleRateConverter::ProcessFullbuffer ( const int16 *  InBuffer, const int32  InNumSamples, TArray< float > &  OutBuffer  )

pure virtual

Given an input buffer, the output buffer is fully sample-rate converted.

Parameters

InBuffer	Input audio buffer
InNumSamples	Number of input samples.
OutBuffer	The output buffer of converted audio.

Returns

Number of frames generated.

Implemented in Audio::FSampleRateConverter.

SetSampleRateRatio()

virtual void Audio::ISampleRateConverter::SetSampleRateRatio ( const float  InSampleRateRatio, const int32  NumInterpolationFrames = 0  )

pure virtual

Implemented in Audio::FSampleRateConverter.

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

• Engine/Source/Runtime/SignalProcessing/Public/DSP/SampleRateConverter.h
• Engine/Source/Runtime/SignalProcessing/Private/SampleRateConverter.cpp