79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
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//
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// CDXGraph.h
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//
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#ifndef __H_CDXGraph__
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#define __H_CDXGraph__
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// Filter graph notification to the specified window
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#define WM_GRAPHNOTIFY (WM_USER+20)
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class CDXGraph
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{
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private:
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IGraphBuilder * mGraph;
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IMediaControl * mMediaControl;
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IMediaEventEx * mEvent;
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IBasicVideo * mBasicVideo;
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IBasicAudio * mBasicAudio;
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IVideoWindow * mVideoWindow;
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IMediaSeeking * mSeeking;
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DWORD mObjectTableEntry;
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public:
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CDXGraph();
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virtual ~CDXGraph();
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public:
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virtual bool Create(void);
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virtual void Release(void);
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virtual bool Attach(IGraphBuilder * inGraphBuilder);
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IGraphBuilder * GetGraph(void); // Not outstanding reference count
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IMediaEventEx * GetEventHandle(void);
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bool ConnectFilters(IPin * inOutputPin, IPin * inInputPin, const AM_MEDIA_TYPE * inMediaType = 0);
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void DisconnectFilters(IPin * inOutputPin);
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bool SetDisplayWindow(HWND inWindow);
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bool SetNotifyWindow(HWND inWindow);
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bool ResizeVideoWindow(long inLeft, long inTop, long inWidth, long inHeight);
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void HandleEvent(WPARAM inWParam, LPARAM inLParam);
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bool Run(void); // Control filter graph
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bool Stop(void);
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bool Pause(void);
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bool IsRunning(void); // Filter graph status
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bool IsStopped(void);
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bool IsPaused(void);
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bool SetFullScreen(BOOL inEnabled);
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bool GetFullScreen(void);
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// IMediaSeeking
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bool GetCurrentPosition(double * outPosition);
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bool GetStopPosition(double * outPosition);
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bool SetCurrentPosition(double inPosition);
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bool SetStartStopPosition(double inStart, double inStop);
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bool GetDuration(double * outDuration);
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bool SetPlaybackRate(double inRate);
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// Attention: range from -10000 to 0, and 0 is FULL_VOLUME.
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bool SetAudioVolume(long inVolume);
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long GetAudioVolume(void);
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// Attention: range from -10000(left) to 10000(right), and 0 is both.
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bool SetAudioBalance(long inBalance);
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long GetAudioBalance(void);
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bool RenderFile(const TCHAR * inFile);
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bool SnapshotBitmap(const TCHAR * outFile);
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private:
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void AddToObjectTable(void) ;
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void RemoveFromObjectTable(void);
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bool QueryInterfaces(void);
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};
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#endif // __H_CDXGraph__
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