OlaEffect.h

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#pragma once
#include "HephAudioShared.h"
#include "DoubleBufferedAudioEffect.h"
#include "Windows/Window.h"
#include "Buffers/DoubleBuffer.h"
 
namespace HephAudio
{
    class HEPH_API OlaEffect : public DoubleBufferedAudioEffect
    {
    public:
        using DoubleBufferedAudioEffect::Process;
 
    protected:
        size_t hopSize;
 
        Heph::DoubleBuffer wnd;
 
        size_t currentIndex;
 
        AudioBuffer pastSamples;
 
    protected:
        OlaEffect();
 
        explicit OlaEffect(size_t hopSize);
 
        OlaEffect(size_t hopSize, const Window& wnd);
 
    public:
        virtual ~OlaEffect() = default;
 
        virtual size_t CalculateRequiredFrameCount(size_t outputFrameCount, const AudioFormatInfo& formatInfo) const;
        virtual void ResetInternalState() override;
        virtual void Process(AudioBuffer& buffer, size_t startIndex, size_t frameCount) override;
 
        virtual size_t GetHopSize() const;
 
        virtual void SetHopSize(size_t hopSize);
 
        virtual size_t GetWindowSize() const;
 
        virtual void SetWindow(const Window& wnd);
 
    protected:
        virtual size_t CalculateMaxNumberOfOverlaps() const;
 
        virtual size_t CalculatePastSamplesSize() const;
    };
}