windows-xp/Source/XPSP1/NT/multimedia/directx/dsound/dsdmo/aecp.h

/***************************************************************************
 *
 *  Copyright (C) 1999-2001 Microsoft Corporation.  All Rights Reserved.
 *
 *  File:       aecp.h
 *  Content:    Acoustic Echo Cancellation DMO declarations.
 *
 ***************************************************************************/

#ifndef _Aecp_
#define _Aecp_

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

class CDirectSoundCaptureAecDMO :
    public CDirectSoundDMO,
    public CParamsManager,
    public IDirectSoundCaptureFXAec,
    public IDirectSoundCaptureFXMsAecPrivate,
    public CComBase
{
public:
    CDirectSoundCaptureAecDMO(IUnknown *pUnk, HRESULT *phr);
    ~CDirectSoundCaptureAecDMO();

    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 **);

    // IDirectSoundCaptureFXAec methods
    STDMETHOD(SetAllParameters)             (THIS_ LPCDSCFXAec);
    STDMETHOD(GetAllParameters)             (THIS_ LPDSCFXAec);
    STDMETHOD(GetStatus)                    (THIS_ PDWORD pdwStatus);
    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);

    // IDirectSoundCaptureFXMsAecPrivate methods
    //STDMETHOD(SetAllParameters)             (THIS_ LPCDSCFXMsAecPrivate);
    STDMETHOD(GetSynchStreamFlag)           (THIS_ PBOOL);
    STDMETHOD(GetNoiseMagnitude)            (THIS_ PVOID, ULONG, PULONG);

private:
    BOOL m_fDirty;
    BOOL m_bInitialized;
    BOOL m_fEnable;
    BOOL m_fNfEnable;
    DWORD m_dwMode;
};

EXT_STD_CAPTURE_CREATE(Aec);

#endif