windows-nt/Source/XPSP1/NT/net/tapi/skywalker/confmsp/confvid.h

/*++

Copyright (c) 1997 Microsoft Corporation

Module Name:

    Confvid.h

Abstract:

    Definitions for audio streams

Author:

    Mu Han (muhan) 15-September-1998

--*/
#ifndef __CONFVID_H_
#define __CONFVID_H_

// if there is no data for five senconds, the pin can be reused.
const DWORD g_dwVideoPinTimeOut     = 5000; 

const DWORD g_dwVideoThreadPriority = THREAD_PRIORITY_NORMAL;
const DWORD g_dwVideoChannels       = 20;  
const BOOL  g_fCIF                  = FALSE;  
const DWORD g_dwVideoSampleRate     = 7;  

const int CIFWIDTH      = 0x160;
const int CIFHEIGHT     = 0x120;

const int QCIFWIDTH     = 0xb0;
const int QCIFHEIGHT    = 0x90;

typedef struct _PINMAPEVENT
{
    IPin *  pIPin;
    DWORD   dwSSRC;

} PINMAPEVENT;

// This data structure keeps the information for on brach of filters off one
// demux output pin.
typedef struct _BRANCH
{
    IPin *          pIPin;
    DWORD           dwSSRC;
    IBaseFilter *   pRPHFilter;
    IBaseFilter *   pCodecFilter;
    ITTerminal *    pITTerminal;
    ITSubStream *   pITSubStream;

} BRANCH;

class ATL_NO_VTABLE CStreamVideoRecv : 
    public CIPConfMSPStream,
    public IDispatchImpl<ITSubStreamControl, 
        &IID_ITSubStreamControl, &LIBID_TAPI3Lib>,
    public IDispatchImpl<ITParticipantSubStreamControl, 
        &IID_ITParticipantSubStreamControl, &LIBID_IPConfMSPLib>
    {
public:
    CStreamVideoRecv();

BEGIN_COM_MAP(CStreamVideoRecv)
    COM_INTERFACE_ENTRY(ITSubStreamControl)
    COM_INTERFACE_ENTRY(ITParticipantSubStreamControl)
    COM_INTERFACE_ENTRY2(IDispatch, ITStream)
    COM_INTERFACE_ENTRY_CHAIN(CIPConfMSPStream)
END_COM_MAP()

// ITSubStreamControl methods, called by the app.
    STDMETHOD (CreateSubStream) (
        IN OUT  ITSubStream **         ppSubStream
        );
    
    STDMETHOD (RemoveSubStream) (
        IN      ITSubStream *          pSubStream
        );

    STDMETHOD (EnumerateSubStreams) (
        OUT     IEnumSubStream **      ppEnumSubStream
        );

    STDMETHOD (get_SubStreams) (
        OUT     VARIANT *              pSubStreams
        );

// ITParticipantSubStreamControl methods, called by the app.
    STDMETHOD (get_SubStreamFromParticipant) (
        IN  ITParticipant * pITParticipant,
        OUT ITSubStream ** ppITSubStream
        );

    STDMETHOD (get_ParticipantFromSubStream) (
        IN  ITSubStream * pITSubStream,
        OUT ITParticipant ** ppITParticipant 
        );

    STDMETHOD (SwitchTerminalToSubStream) (
        IN  ITTerminal * pITTerminal,
        IN  ITSubStream * pITSubStream
        );

// method called by the MSPCall object.
    virtual HRESULT Init(
        IN     HANDLE                   hAddress,
        IN     CMSPCallBase *           pMSPCall,
        IN     IMediaEvent *            pGraph,
        IN     DWORD                    dwMediaType,
        IN     TERMINAL_DIRECTION       Direction
        );

    HRESULT Configure(
        IN STREAMSETTINGS &StreamSettings
        );

    HRESULT SubStreamSelectTerminal(
        IN  ITSubStream * pITSubStream, 
        IN  ITTerminal * pITTerminal
        );

protected:
    HRESULT CheckTerminalTypeAndDirection(
        IN  ITTerminal *            pTerminal
        );

    HRESULT ShutDown();
    
    HRESULT SetUpFilters();

    HRESULT SetUpInternalFilters();

    HRESULT ConnectTerminal(
        IN  ITTerminal *   pITTerminal
        );

    HRESULT DisconnectTerminal(
        IN  ITTerminal *   pITTerminal
        );

    HRESULT ConfigureRTPFilter(
        IN  IBaseFilter *   pIBaseFilter
        );

    HRESULT InternalCreateSubStream(
        OUT  ITSubStream **         ppITSubStream
        );

    HRESULT ProcessPinMappedEvent(
        IN  IPin *  pIPin
        );

    HRESULT ProcessPinUnmapEvent(
        IN  IPin *  pIPin
        );

    HRESULT ProcessParticipantLeave(
        IN  DWORD   dwSSRC
        );

    HRESULT ProcessNewSender(
        IN  DWORD dwSSRC, 
        IN  ITParticipant *pITParticipant
        );

    HRESULT NewParticipantPostProcess(
        IN  DWORD dwSSRC, 
        IN  ITParticipant *pITParticipant
        );

    HRESULT ProcessGraphEvent(
        IN  long lEventCode,
        IN  long lParam1,
        IN  long lParam2
        );

    HRESULT AddOneBranch(
        BRANCH * pBranch
        );

    HRESULT RemoveOneBranch(
        BRANCH * pBranch
        );

    HRESULT ConnectCodecToTerminal(
        IN  IBaseFilter *  pCodecFilter,
        IN  ITTerminal *   pITTerminal
        );

protected:
    IRTPDemuxFilter *           m_pIRTPDemux;

    CMSPArray <ITSubStream *>   m_SubStreams;

    // This array store information about all the branches off the demux
    CMSPArray <BRANCH>          m_Branches;

    CMSPArray <PINMAPEVENT>     m_PinMappedEvents;   
};

class ATL_NO_VTABLE CStreamVideoSend : public CIPConfMSPStream
{
public:
    CStreamVideoSend();

    HRESULT Configure(
        IN STREAMSETTINGS &StreamSettings
        );

protected:
    HRESULT CheckTerminalTypeAndDirection(
        IN  ITTerminal *            pTerminal
        );

    HRESULT SetUpFilters();

    HRESULT ConnectTerminal(
        IN  ITTerminal *   pITTerminal
        );

    HRESULT CStreamVideoSend::CreateSendFilters(
        IN    IPin          *pCapturePin
        );

    HRESULT CStreamVideoSend::ConnectPreview(
        IN    IPin          *pPreviewInputPin
        );

    HRESULT ConfigureVideoCaptureTerminal(
        IN  ITTerminalControl*  pTerminal,
        IN  WCHAR *             szPinName,
        OUT IPin **             ppIPin
        );

    HRESULT FindPreviewInputPin(
        IN  ITTerminalControl*  pTerminal,
        OUT IPin **             ppIpin
        );

    HRESULT ConfigureRTPFilter(
        IN  IBaseFilter *   pIBaseFilter
        );
protected:

    DWORD   m_dwFrameRate;
};

class ATL_NO_VTABLE CSubStreamVideoRecv : 
    public CComObjectRootEx<CComMultiThreadModelNoCS>,
    public IDispatchImpl<ITSubStream, &IID_ITSubStream, &LIBID_IPConfMSPLib>,
    public CMSPObjectSafetyImpl
{
public:

BEGIN_COM_MAP(CSubStreamVideoRecv)
    COM_INTERFACE_ENTRY(IDispatch)
    COM_INTERFACE_ENTRY(ITSubStream)
    COM_INTERFACE_ENTRY(IObjectSafety)
    COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, m_pFTM)
END_COM_MAP()

DECLARE_GET_CONTROLLING_UNKNOWN()

#ifdef DEBUG_REFCOUNT
    
    ULONG InternalAddRef();
    ULONG InternalRelease();

#endif

    CSubStreamVideoRecv(); 

// methods of the CComObject
    virtual void FinalRelease();

// ITSubStream methods, called by the app.
    STDMETHOD (SelectTerminal) (
        IN      ITTerminal *            pTerminal
        );

    STDMETHOD (UnselectTerminal) (
        IN     ITTerminal *             pTerminal
        );

    STDMETHOD (EnumerateTerminals) (
        OUT     IEnumTerminal **        ppEnumTerminal
        );

    STDMETHOD (get_Terminals) (
        OUT     VARIANT *               pTerminals
        );

    STDMETHOD (get_Stream) (
        OUT     ITStream **             ppITStream
        );

    STDMETHOD (StartSubStream) ();

    STDMETHOD (PauseSubStream) ();

    STDMETHOD (StopSubStream) ();

// methods called by the videorecv object.
    virtual HRESULT Init(
        IN  CStreamVideoRecv *  pStream
        );

    BOOL GetCurrentParticipant(
        DWORD *pdwSSRC,
        ITParticipant ** ppParticipant
        );

    VOID SetCurrentParticipant(
        DWORD dwSSRC,
        ITParticipant * pParticipant
        );

    BOOL ClearCurrentTerminal();
    BOOL SetCurrentTerminal(ITTerminal * pTerminal);

protected:
    // Pointer to the free threaded marshaler.
    IUnknown *                  m_pFTM;

    // The list of terminal objects in the substream.
    CMSPArray <ITTerminal *>    m_Terminals;

    // The lock that protects the substream object. The stream object 
    // should never acquire the lock and then call a MSPCall method 
    // that might lock. This is protected by having a const pointer 
    // to the call object.
    CMSPCritSection             m_lock;

    CStreamVideoRecv  *         m_pStream;

    ITParticipant *             m_pCurrentParticipant;
};

#endif