MultichannelBuffer.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "DSP/BufferVectorOperations.h"
#include "DSP/Dsp.h"
 
namespace Audio
{
    using FMultichannelBuffer = TArray<Audio::FAlignedFloatBuffer>;
 
    using FMultichannelBufferView = TArray<TArrayView<float>>;
 
    using FMultichannelCircularBuffer = TArray<Audio::TCircularAudioBuffer<float>>;
 
    SIGNALPROCESSING_API void SetMultichannelBufferSize(int32 InNumChannels, int32 InNumFrames, FMultichannelBuffer& OutBuffer);
 
    SIGNALPROCESSING_API void SetMultichannelCircularBufferCapacity(int32 InNumChannels, int32 InNumFrames, FMultichannelCircularBuffer& OutBuffer);
 
    SIGNALPROCESSING_API void SetMultichannelBufferSize(int32 InNumFrames, FMultichannelBuffer& OutBuffer);
 
    SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelBuffer& InBuffer);
 
    SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelCircularBuffer& InBuffer);
 
    SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelBufferView& InBuffer);
 
    SIGNALPROCESSING_API FMultichannelBufferView MakeMultichannelBufferView(FMultichannelBuffer& InBuffer);
 
    SIGNALPROCESSING_API FMultichannelBufferView MakeMultichannelBufferView(FMultichannelBuffer& InBuffer, int32 InStartFrameIndex, int32 InNumFrames);
 
    SIGNALPROCESSING_API FMultichannelBufferView SliceMultichannelBufferView(const FMultichannelBufferView& View, int32 InStartFrameIndex, int32 InNumFrames);
 
    SIGNALPROCESSING_API void ShiftMultichannelBufferView(int32 InNumFrames, FMultichannelBufferView& View);
}