windows-xp/Source/XPSP1/NT/net/tapi/skywalker/rcamsp/rcacall.h

/*++

Copyright (c) 1998-1999 Microsoft Corporation

Module Name:

    rcacall.h

Abstract:

    Declaration of the CRCAMSPCall

Author:
    
    Zoltan Szilagyi September 7th, 1998

--*/

#ifndef __RCACALL_H_
#define __RCACALL_H_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000


/////////////////////////////////////////////////////////////////////////////
// CRCAMSPCall
/////////////////////////////////////////////////////////////////////////////

class CRCAMSPCall : public CMSPCallMultiGraph, public CMSPObjectSafetyImpl
{
public:
// DECLARE_POLY_AGGREGATABLE(CRCAMSP)

// To add extra interfaces to this class, use the following:
BEGIN_COM_MAP(CRCAMSPCall)
    COM_INTERFACE_ENTRY( IObjectSafety )
    COM_INTERFACE_ENTRY_CHAIN(CMSPCallMultiGraph)
END_COM_MAP()

public:
    CRCAMSPCall();
    virtual ~CRCAMSPCall();
    virtual ULONG MSPCallAddRef(void);
    virtual ULONG MSPCallRelease(void);

    virtual HRESULT Init(
        IN      CMSPAddress *       pMSPAddress,
        IN      MSP_HANDLE          htCall,
        IN      DWORD               dwReserved,
        IN      DWORD               dwMediaType
        );

    virtual HRESULT CreateStreamObject(
        IN      DWORD               dwMediaType,
        IN      TERMINAL_DIRECTION  Direction,
        IN      IMediaEvent *       pGraph,
        IN      ITStream **         ppStream
        );

    virtual HRESULT ReceiveTSPCallData(
        IN      PBYTE               pBuffer,
        IN      DWORD               dwSize
        );

    //
    // We override these to make sure the number of
    // streams we have is constant.
    //

    STDMETHOD (CreateStream) (
        IN      long                lMediaType,
        IN      TERMINAL_DIRECTION  Direction,
        IN OUT  ITStream **         ppStream
        );
    
    STDMETHOD (RemoveStream) (
        IN      ITStream *          pStream
        );                      

    //
    // Public methods called by the RCAMSPStream
    //

    BOOL UseMulaw( void );

protected:

    // 
    // Protected data members.
    //

    CRCAMSPStream * m_pRenderStream;
    CRCAMSPStream * m_pCaptureStream;
};

#endif //__RCAADDR_H_