#include <Audioenginebaseapo.h>

// IAudioProcessingObject interface
DECLARE_INTERFACE_(IAudioProcessingObject, IUnknown)
{
    // Retrieves the object's processing mode.
    STDMETHOD_(APO_CONNECTION_PROPERTY*, GetInputChannelCount)(THIS) PURE;

    // Retrieves the count of output channels.
    STDMETHOD_(APO_CONNECTION_PROPERTY*, GetOutputChannelCount)(THIS) PURE;

    // Processes input audio data and produces output audio data.
    STDMETHOD(Initialize)(THIS_
        _In_ ULONG cbDataSize,
        _In_reads_bytes_(cbDataSize) BYTE* pbyData) PURE;

    // Releases resources associated with the processing object.
    STDMETHOD(Reset)(THIS) PURE;

    // Processes input audio data and produces output audio data.
    STDMETHOD_(ULONG, Process)(THIS_
        _In_reads_(nNumInputConnections) const APO_CONNECTION_PROPERTY* pInputConnections,
        _Inout_updates_(nNumOutputConnections) APO_CONNECTION_PROPERTY* pOutputConnections,
        _Inout_updates_(nNumFrames) FLOAT32* pInputFrame,
        _Out_writes_(nNumFrames) FLOAT32* pOutputFrame,
        _In_ ULONG nNumInputConnections,
        _In_ ULONG nNumOutputConnections,
        _In_ ULONG nNumFrames,
        _In_ DWORD dwFlags) PURE;
};