WasapiDefaultRenderStream.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "AudioMixerWasapiRenderStream.h"
 
DECLARE_DELEGATE(FAudioMixerReadNextBufferDelegate);
 
namespace Audio
{
    class FWasapiDefaultRenderStream : public FAudioMixerWasapiRenderStream
    {
    public:
 
        virtual ~FWasapiDefaultRenderStream() = default;
 
        //~ Begin FAudioMixerWasapiRenderStream
        virtual bool InitializeHardware(const FWasapiRenderStreamParams& InParams) override;
        virtual bool TeardownHardware() override;
        virtual void SubmitBuffer(const uint8* Buffer, const SIZE_T InNumFrames) override;
        //~ End FAudioMixerWasapiRenderStream
 
        //~ Begin IDeviceRenderCallback
        virtual void DeviceRenderCallback() override;
        //~ End IDeviceRenderCallback
        
        FAudioMixerReadNextBufferDelegate& OnReadNextBuffer() { return ReadNextBufferDelegate; }
 
    private:
 
        int32 EngineBufferNumFrames = 0;
        
        SIZE_T EngineBufferNumBytes = 0;
        
        FAudioMixerReadNextBufferDelegate ReadNextBufferDelegate;
 
        TArrayView<uint8> RenderBufferView;
    };
}