windows-server-2003/multimedia/directx/dsound/dsdmo/nsp.h

/***************************************************************************
 *
 *  Copyright (C) 1999-2001 Microsoft Corporation.  All Rights Reserved.
 *
 *  File:       nsp.h
 *  Content:    Noise Suppression DMO declarations.
 *
 ***************************************************************************/

#ifndef _NoiseSuppressp_
#define _NoiseSuppressp_

#include "dsdmobse.h"
#include "dmocom.h"
#include "dsdmo.h"
#include "PropertyHelp.h"
#include "param.h"

class CDirectSoundCaptureNoiseSuppressDMO :
    public CDirectSoundDMO,
    public CParamsManager,
    public IDirectSoundCaptureFXNoiseSuppress,
    public CComBase
{
public:
    CDirectSoundCaptureNoiseSuppressDMO(IUnknown *pUnk, HRESULT *phr);
    ~CDirectSoundCaptureNoiseSuppressDMO();

    DECLARE_IUNKNOWN;
    STDMETHODIMP NDQueryInterface(REFIID riid, void **ppv);
    static CComBase* WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);

    // InitOnCreation is called by the class factory to give the object a chance to initialize
    // immediately after it is created.  This is used to prepare the object's parameter information.
    HRESULT InitOnCreation();

    // The Init function is an override from the CPCMDMO base class and it provides initialization
    // for the effect's actual audio processing.  Note that InputType must have been set before this
    // occurs in order for this to work.
    HRESULT Init();

    STDMETHOD(Clone)                (THIS_ IMediaObjectInPlace **);

    // IDirectSoundCaptureFXNoiseSuppress methods
    STDMETHOD(SetAllParameters)     (THIS_ LPCDSCFXNoiseSuppress);
    STDMETHOD(GetAllParameters)     (THIS_ LPDSCFXNoiseSuppress);
    STDMETHOD(Reset)                (THIS);

    // IMediaParams methods
    STDMETHOD(SetParam)             (THIS_ DWORD dwParamIndex, MP_DATA value, bool fSkipPasssingToParamManager = false);
    STDMETHOD(GetParam)             (THIS_ DWORD dwParamIndex, MP_DATA* value);

    // All of these methods are called by the base class
    HRESULT FBRProcess(DWORD cQuanta, BYTE *pIn, BYTE *pOut);
    HRESULT Discontinuity();
    HRESULT ProcessInPlace(ULONG ulQuanta, LPBYTE pcbData, REFERENCE_TIME rtStart, DWORD dwFlags);

private:
    BOOL m_fDirty;
    BOOL m_fEnable;
    BOOL m_bInitialized;
};

EXT_STD_CAPTURE_CREATE(NoiseSuppress);

#endif