www.pudn.com > rtp实现协议占.rar > rtpinfosync.h

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 * the file under the current version of the RealNetworks Community 
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 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL 
 * will apply. You may also obtain the license terms directly from 
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 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for 
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 * contents of the file. 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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 * ***** END LICENSE BLOCK ***** */  
#ifndef _RTP_INFO_SYNC_H_
#define _RTP_INFO_SYNC_H_

#include "tconverter.h"
#include "ntptime.h"

typedef _INTERFACE  IHXRTPInfoSynch	    IHXRTPInfoSynch;

/****************************************************************************
 * 
 *  Interface:
 * 
 *	IHXRTPInfoSynch
 * 
 *  Purpose:
 * 
 * 
 *  IID_IHXRTPInfoSynch:
 * 
 *	{1D9DF3AD-7429-4efc-B54D-D67E256304C4}
 * 
 */

DEFINE_GUID(IID_IHXRTPInfoSynch, 
	    0x1d9df3ad, 0x7429, 0x4efc, 0xb5, 0x4d, 0xd6, 0x7e, 0x25, 0x63, 0x4, 0xc4);

#undef  INTERFACE
#define INTERFACE   IHXRTPInfoSynch

DECLARE_INTERFACE_(IHXRTPInfoSynch, IUnknown)
{
    /*
     * IUnknown Methods
     */
    STDMETHOD(QueryInterface)	(THIS_ REFIID riid, void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;

    STDMETHOD(InitSynch)(THIS_ 
			 UINT16 unStreamCount) PURE;
    STDMETHOD(RTPSynch) (THIS_ UINT16 unMaster) PURE;
    STDMETHOD(OnRTPPacket) (THIS_ IHXBuffer* pRTPPacket, 
			    UINT16 unStream,
			    REF(BOOL) bSynched,
			    REF(UINT32) ulSequenceNumber,
			    REF(UINT32) ulTimestamp) PURE;
    STDMETHOD(OnRTCPPacket)(THIS_ IHXBuffer* pRTCPPacket, 
			    UINT16 unStream) PURE;
    STDMETHOD(SetTSConverter)(THIS_ 
			      CHXTimestampConverter::ConversionFactors 
			      conversionFactors,
			      UINT16 unStream) PURE;
    STDMETHOD(IsStreamSynched)(THIS_ UINT16 unStream, REF(BOOL) bIsSynched) PURE;
    STDMETHOD(Done)     (THIS) PURE;
};

class RTPInfoSynchData
{
 public:
    RTPInfoSynchData();
    ~RTPInfoSynchData();
    
    void Reset();

    BOOL    m_bHasSR;
    INT32   m_lRTPtoNTPOffset; //units: msec ; additive conversion from RTP to NTP for this stream
    UINT32  m_ulRTPInfoTime;   //units: rtp time ; time to be placed in rtp info field
    BOOL    m_bSynched; 

    CHXTimestampConverter* m_pTSConverter;
};


class RTPInfoSynch: public IHXRTPInfoSynch
{
 public:
    RTPInfoSynch			();
    ~RTPInfoSynch			();

    STDMETHOD(QueryInterface)           (THIS_
                                        REFIID riid,
                                        void** ppvObj);
    STDMETHOD_(ULONG32,AddRef)      	(THIS);
    STDMETHOD_(ULONG32,Release)     	(THIS);

    
    STDMETHOD(InitSynch)(THIS_ 
			 UINT16 unStreamCount);
    STDMETHOD(RTPSynch) (THIS_ UINT16 unMaster);
    STDMETHOD(OnRTPPacket) (THIS_ IHXBuffer* pRTPPacket, 
			    UINT16 unStream,
			    REF(BOOL) bSynched,
			    REF(UINT32) ulSequenceNumber,
			    REF(UINT32) ulTimestamp);
    STDMETHOD(OnRTCPPacket)(THIS_ IHXBuffer* pRTCPPacket, UINT16 unStream);
    STDMETHOD(SetTSConverter)(THIS_ 
			      CHXTimestampConverter::ConversionFactors 
			      conversionFactors,
			      UINT16 unStream);
    STDMETHOD(IsStreamSynched)(THIS_ UINT16 unStream, REF(BOOL) bIsSynched);
    STDMETHOD(Done)     (THIS);

 private:
    INT32	              m_lRefCount;
    RTPInfoSynchData*         m_pSynchData;
    UINT16                    m_unStreamCount;
    UINT16                    m_unSRCount;
    UINT16                    m_unSynchStream;
    BOOL                      m_bHaveAllSRs;
    BOOL                      m_bRTPTimesGenerated;
};

#endif /*_RTP_INFO_SYNC_H_ */