ConvertDeinterleave.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "DSP/ChannelMap.h"
#include "DSP/MultichannelBuffer.h"
#include "Containers/ArrayView.h"
#include "Templates/UniquePtr.h"
 
namespace Audio
{
    struct FConvertDeinterleaveParams
    {
        // Number of channels in the input audio.
        int32 NumInputChannels = 0;
 
        // Number of channels in the output audio.
        int32 NumOutputChannels = 0;
 
        // Method for upmixing mono audio (only used if NumInputChannels == 1)
        EChannelMapMonoUpmixMethod MonoUpmixMethod = EChannelMapMonoUpmixMethod::EqualPower;
    };
 
    struct IConvertDeinterleave
    {
        virtual ~IConvertDeinterleave() = default;
 
        virtual void ProcessAudio(TArrayView<const float> InSamples, FMultichannelBuffer& OutSamples) const = 0;
 
 
        SIGNALPROCESSING_API static TUniquePtr<IConvertDeinterleave> Create(const FConvertDeinterleaveParams& InParams);
    };
}