hxbsrc.h

linux下的一款播放器

    /************************************************************************
     *	Method:
     *	    IHXASMSource::Subscribe
     *	Purpose:
     *      Called to inform a file format that a subscription has occurred,
     *	    to rule number uRuleNumber, for stream uStreamNumber.
     */
    STDMETHOD(Subscribe)	(THIS_
				UINT16	uStreamNumber,
				UINT16	uRuleNumber);

    /************************************************************************
     *	Method:
     *	    IHXASMSource::Unsubscribe
     *	Purpose:
     *      Called to inform a file format that a unsubscription has occurred,
     *	    to rule number uRuleNumber, for stream uStreamNumber.
     */
    STDMETHOD(Unsubscribe)	(THIS_
				UINT16	uStreamNumber,
				UINT16	uRuleNumber);
    // IHXInfoLogger method

    /************************************************************************
     *	Method:
     *	    IHXInfoLogger::LogInformation
     *	Purpose:
     *	    Logs any user defined information in form of action and 
     *	    associated data.
     */
    STDMETHOD(LogInformation)		(THIS_				
					const char* /*IN*/ pAction,
					const char* /*IN*/ pData) = 0;
#if defined(HELIX_FEATURE_HYPER_NAVIGATE)
    /*
     *	IHXHyperNavigate methods
     */

    /************************************************************************
     *	Method:
     *	    IHXHyperNavigate::GoToURL
     *	Purpose:
     *	    Performs a simple Go To URL operation.
     */
    STDMETHOD(GoToURL)	    (THIS_
			    const char* pURL,
			    const char* pTarget);

    /************************************************************************
     *	Method:
     *	    IHXHyperNavigate2::Execute
     *	Purpose:
     *	    
     *	Parameters:
     *      pURL:	    URL (absolute or relative)
     *	    pTargetInstance:	
     *	    pTargetApplication: 
     *	    pTargetRegion:
     *	    pParams:
     */
    STDMETHOD(Execute)	    (THIS_
			    const char* pURL,
			    const char* pTargetInstance,
			    const char* pTargetApplication,
			    const char* pTargetRegion,
			    IHXValues* pParams);
#endif /* defined(HELIX_FEATURE_HYPER_NAVIGATE) */

    /************************************************************************
     *	Method:
     *	    IHXSourceBufferingStats2::GetCurrentBuffering
     *	Purpose:
     *	    Get the current buffering information
     */

    STDMETHOD(GetCurrentBuffering) (THIS_ 
                                    UINT16  uStreamNumber,
                                    REF(INT64)  llLowestTimestamp, 
                                    REF(INT64)  llHighestTimestamp,
                                    REF(UINT32) ulNumBytes,
                                    REF(BOOL)   bDone) PURE;
    /************************************************************************
     *	Method:
     *	    IHXSourceBufferingStats2::GetTotalBuffering
     *	Purpose:
     *	    Get the total amount of data buffered for a stream.
     *      This includes what is in the transport buffer and in
     *      the renderer
     */
    
    STDMETHOD(GetTotalBuffering)  (THIS_ UINT16  uStreamNumber,
				   REF(INT64)  llLowestTimestamp, 
				   REF(INT64)  llHighestTimestamp,
				   REF(UINT32) ulNumBytes,
				   REF(BOOL)   bDone);

    HX_RESULT		Init(HXPlayer * player, UINT32 unRegistryID);
    HX_RESULT		SetupRegistry(void);
    virtual HX_RESULT	UpdateRegistry(UINT32 ulRegistryID) = 0;

    virtual BOOL 	IsInitialized(void)	{return m_bInitialized;};
    virtual BOOL	IsPreBufferingDone(void) {return m_bIsPreBufferingDone;};

    void		AddHXStream(HXStream* pStream);
    HX_RESULT		CollectAudioStreams(CHXSimpleList*& pAudioStreamList);
    void		RemoveAudioStreams(void);
    void		PauseAudioStreams(void);
    void		ResumeAudioStreams(void);
    void		ReleaseAudioStreams(CHXSimpleList* pAudioStreamList);

    void		InitialBufferingDone(void);

    void		DoRebuffer(void);
    BOOL		IsRebufferRequired(void);
    BOOL		IsRebufferDone(void);
    
#if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_REGISTRY)
    virtual HX_RESULT	CopyMetaDataToRegistry(IHXValues* pHeader);
#endif /* HELIX_FEATURE_STATS && HELIX_FEATURE_REGISTRY */

    virtual HX_RESULT	DoCleanup(EndCode endCode = END_STOP);

	    void	Stop(void);

    virtual HX_RESULT	DoSeek( ULONG32 seekTime) = 0;
    
    virtual HX_RESULT	DoPause(void) = 0;

    virtual HX_RESULT	DoResume(void) = 0;

    virtual HX_RESULT	StartInitialization(void) = 0;

    virtual UINT16	GetNumStreams(void) = 0;
    	
    virtual HX_RESULT	GetStreamInfo(ULONG32 ulStreamNumber,
				      STREAM_INFO*& theStreamInfo) = 0;
    
    virtual HX_RESULT	GetEvent(UINT16 usStreamNumber, CHXEvent * &theEvent) = 0;

    virtual HX_RESULT	UpdateStatistics(void) = 0;

    virtual void	SetMinimumPreroll(ULONG32 ulMinimumAudioPreroll, ULONG32 ulMinimumStartingPreroll);

    virtual HX_RESULT	GetStreamHeaderInfo(UINT16 index, 
					    IHXValues * &hdr);
    
    virtual HX_RESULT	    ProcessIdle(void)	// calls _ProcessIdle (FALSE)
			    {
				return _ProcessIdle(FALSE);
			    }

#if defined (__MWERKS__)	
    virtual HX_RESULT	    ProcessIdleAtInterrupt(void)	// calls _ProcessIdle (TRUE)
			    {
				return _ProcessIdle(TRUE);
			    }

#endif // (__MWERKS__)	

	    HX_RESULT	GetLastError(void) { return mLastError;};

    virtual BOOL	IsLocalSource()  {return TRUE;};
    virtual BOOL	IsPNAProtocol()  {return FALSE;};
    virtual BOOL	IsSimulatedNetworkPlayback()  {return FALSE;};
    
    virtual void	EventReady(CHXEvent* pEvent);

    // to set and get flags for livestream, saveas, perfectplay...
    virtual	void		SetFlags(UINT16 flags);
    virtual	UINT16		GetFlags() {return mFlags;};

    virtual	BOOL		IsPerfectPlayAllowed() { return m_bPerfectPlayAllowed;};
    virtual	BOOL		IsPerfectPlay()	       { return m_bPerfectPlay;};

   
    virtual	HX_RESULT	SetPlayTimes(UINT32 ulStartTime, 
					     UINT32 ulEndTime, 
					     UINT32 ulDelay, 
					     UINT32 ulDuration);

    virtual	HX_RESULT	UpdatePlayTimes(IHXValues* pValues); 

    virtual	BOOL		IsSourceDone() = 0;

    // tell about end of source...
    virtual	void		SetEndOfClip(BOOL bForcedEndofClip = FALSE) = 0;

    virtual	void		EnterBufferedPlay(void) {};
    virtual	void		LeaveBufferedPlay(void) {};

    ULONG32			GetDuration() const { return m_ulDuration; };

    IHXClientEngine*		GetClientEngine() const { return (IHXClientEngine*) m_pEngine; };
   
    UINT32 			GetStartTime() const { return m_ulStartTime; };
    UINT32 			GetEndTime()   const { return m_ulEndTime; }; 
    UINT32 			GetDelay()   const { return m_ulDelay; };
    CHXURL*			GetCHXURL() { return m_pURL; };

    BOOL			IsDelayed() const   { return m_bDelayed; };
    BOOL			IsSeekable() const {return !m_bNonSeekable;};
    BOOL			IsPaused() const {return m_bPaused;};

    INT64			GetLastExpectedPacketTime() const 
				    {return m_llLastExpectedPacketTime;};
    
    void			PartOfNextGroup(BOOL bPartOfNextGroup) { m_bPartOfNextGroup = bPartOfNextGroup;};
    BOOL			IsPartOfNextGroup(void) { return m_bPartOfNextGroup; };

    void			PartOfPrefetchGroup(BOOL bPartOfPrefetchGroup) { m_bPartOfPrefetchGroup = bPartOfPrefetchGroup;};
    BOOL			IsPartOfPrefetchGroup(void) { return m_bPartOfPrefetchGroup; };

    STDMETHOD(ReportRebufferStatus)	(THIS_
					UINT16 uStreamNumber,
					UINT8 unNeeded, 
					UINT8 unAvailable);


    STDMETHOD(SetGranularity)		(THIS_
					UINT16 uStreamNumber,
					ULONG32 ulGranularity);

	    void		SetSourceInfo(SourceInfo* pSourceInfo)  
				    {m_pSourceInfo = pSourceInfo;};

    virtual void		AdjustClipBandwidthStats(BOOL bActivate = FALSE) = 0;

    virtual BOOL		CanBeResumed(void)  = 0;

	    BOOL		isRestrictedLiveStream() {return m_bRestrictedLiveStream;};

    virtual BOOL		TryResume(void);

    virtual char*		GetHost() {return NULL;};

    virtual void		ReSetup(void) = 0;

	    BOOL		IsResumePending() { return m_bResumePending;};

    virtual char*		GetAltURL(BOOL& bDefault);

	    void		SetAltURLType(BOOL bDefault) { m_bDefaultAltURL = bDefault; };

	    BOOL		IsActive(void) {return m_bIsActive;};

	    HX_RESULT		SetRequest(const CHXURL* pURL, BOOL bAltURL);
	    HX_RESULT		GetRequest(REF(IHXRequest*) pRequest)
				{
				    pRequest = m_pRequest;

				    if (m_pRequest)
				    {
					m_pRequest->AddRef();
				    }

				    return HXR_OK;
				};

	    void		UpdateDuration(UINT32 ulDuration);
	    void		UpdateDelay(UINT32 ulDelay);
	    void		ScheduleProcessCallback();
	    void		MergeUpgradeRequest(BOOL bAddDefault = FALSE, char* pUpgradeString = NULL);
	    void		ClearUpgradeRequest();

            void                DeleteAllEvents();
	    void		EnterPrefetch(PrefetchType prefetchType, UINT32 ulPrefetchValue);
	    virtual void	LeavePrefetch(void);
	    virtual BOOL	IsPrefetchDone(void) {return TRUE;};
	    void		SetSoundLevel(UINT16 uSoundLevel, BOOL bReflushAudioDevice);
	    void		SetAudioDeviceReflushHint(void);
            void                SetMaxPossibleAccelRatio(double maxR) {m_maxPossibleAccelRatio = maxR;};

	    virtual void	EnterFastStart(void) { m_bFastStart = TRUE; };
	    virtual void	LeaveFastStart(TurboPlayOffReason leftReason);

	    virtual BOOL	CanBeFastStarted(void) {return FALSE;};

	    virtual HX_RESULT	FillRecordControl() = 0;
		    BOOL	IsPlayingFromRecordControl() { return m_bPlayFromRecordControl; };

            HX_RESULT OnTimeSync(ULONG32 ulCurrentTime);
protected:

    virtual 		~HXSource(void);

    PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME

    virtual HX_RESULT	_ProcessIdle(BOOL atInterrupt = FALSE) = 0;
		    
    virtual HX_RESULT	ReadPreferences(void);

	    BOOL	IsAudioStreamFromThisSource(IHXValues* pAudioHeader);
	    BOOL	IsAnyAudioStream(void);

	    HX_RESULT	DeleteStreamTable(void);
	    IHXValues* GetHeaderInfo(UINT16 stream_number);

	    ULONG32	GetAvailableMemory();
	    ULONG32	GetPerfectPlayTime(void);
	    HX_RESULT	AdjustClipTime(void);

	    CHXMapLongToObj* GetStreamInfoTable(void)
			    {
				return mStreamInfoTable;
			    };

    virtual void	ReBuffer(void) = 0;

	    void	GenerateFakeLostPacket(CHXEvent*& theEvent);
	    BOOL	ShouldConvert(const char* pTargetInstance);

            HX_RESULT	SendHeaderToRecordControl(BOOL bFileHeader, IHXValues* pHeader);
            void        ProcessFileHeader(void);
            HX_RESULT   ProcessStreamHeaders(IHXValues* pHeader, STREAM_INFO*& pStreamInfo);

    HX_RESULT			mLastError;
    CHXMapLongToObj*            mStreamInfoTable;
    
    // Preferences
    ULONG32			m_ulPerfectPlayTime;
    ULONG32			m_ulBufferedPlayTime;
    ULONG32		        m_ulStreamHeadersExpected;
    UINT16			m_nSeeking;
    BOOL			m_bPerfectPlayEntireClip;
    HX_BITFIELD			m_bCannotBufferEntireClip : 1;
    BOOL			m_bPerfectPlay;
    HX_BITFIELD			m_bBufferedPlay : 1;


    HX_BITFIELD			m_bClipTimeAdjusted : 1;
    HX_BITFIELD			m_bInitialized : 1;
    HX_BITFIELD			m_bIsPreBufferingDone : 1;
    HX_BITFIELD			m_bAltURL : 1;
    HX_BITFIELD			m_bReceivedData : 1;
    HX_BITFIELD			m_bReceivedHeader : 1;

    HX_BITFIELD			m_bInitialBuffering : 1;
    HX_BITFIELD			m_bCustomEndTime : 1;
    HX_BITFIELD			m_bCustomDuration : 1;
    HX_BITFIELD			m_bPaused : 1;
    HX_BITFIELD			m_bFirstResume : 1;

    HX_BITFIELD			m_bResumePending : 1;
    HX_BITFIELD			m_bIsActive : 1;
    HX_BITFIELD			m_bDelayed : 1;
    HX_BITFIELD			m_bLocked : 1;
    
    HX_BITFIELD			m_bPartOfNextGroup : 1;
    HX_BITFIELD			m_bPartOfPrefetchGroup : 1;
    HX_BITFIELD			m_bPrefetch : 1;

    HX_BITFIELD			m_bPerfectPlayAllowed : 1;
    HX_BITFIELD			mSaveAsAllowed : 1;
    HX_BITFIELD			mLiveStream : 1;
    HX_BITFIELD			m_bRestrictedLiveStream : 1;
    HX_BITFIELD			m_bNonSeekable : 1;

    HX_BITFIELD			m_bSourceEnd : 1;		// == 1 no more packets for this stream from actual source
    HX_BITFIELD			m_bForcedSourceEnd : 1;		// Forced end of source due to end or dur tag in url/SMIL
    HX_BITFIELD			m_bIsPreBufferingStarted : 1;
    HX_BITFIELD			m_bIsMeta: 1;
    UINT32			m_ulTurboStartActiveTime;
    UINT16			mFlags;
    UINT16			m_uNumStreams;			// Number of streams in the source...
    ULONG32			m_ulPreRollInMs;		// Number of millisecs worth of data to be held back (for preroll)
    ULONG32			m_ulPreRoll;			// Number of bytes worth of data to be held back (for preroll)    
    ULONG32			m_ulAvgBandwidth;		// Bandwidth for this stream...
    ULONG32			m_ulDuration;			// duration of this stream...
    
    UINT32			m_ulLastBufferingCalcTime;

    UINT16			m_uActiveStreams;

    PrefetchType		m_prefetchType;
    UINT32			m_ulPrefetchValue;

    char*			m_pszURL;
    CHXURL*			m_pURL;

    UINT32			m_ulStartTime;
    UINT32			m_ulEndTime;    
    INT64			m_llLastExpectedPacketTime;
    UINT32			m_ulRestrictedDuration;
    UINT32			m_ulLossHack;
    UINT32			m_ulNumFakeLostPackets;
    UINT32			m_ulFirstPacketTime;
    double                      m_maxPossibleAccelRatio;

    // level 3 stats
    UINT32			m_ulSourceStartTime;

    IHXPreferences*		m_pPreferences;
    IHXScheduler*		m_pScheduler;
    IHXRequest*		m_pRequest;    

    HXClientEngine*		m_pEngine;

    CHXSimpleList		m_HXStreamList;
    CHXSimpleList*		m_pAudioStreamList;
#if defined(HELIX_FEATURE_AUTOUPGRADE)
    HXUpgradeCollection*	m_pUpgradeCollection;
#endif /* HELIX_FEATURE_AUTOUPGRADE */

    IHXASMSource*		m_pASMSource;
    IHXBackChannel*		m_pBackChannel;

    HXRecordControl*		m_pRecordControl;
    BOOL			m_bPlayFromRecordControl;

    CHXURL*                     m_pRedirectURL;
    BOOL                        m_bRedirectPending;
};

// Defined flags
#define HX_RELIABLE_FLAG			0x0001
#define HX_KEYFRAME_FLAG			0x0002
#define HX_LASTFRAME_FLAG			0x0004


#endif // _HX_BSOURCE