www.pudn.com > AVChat1.rar > CPreviewAdmin.h

// 
// CPreviewAdmin.h 
// 
 
#ifndef __H_CPreviewAdmin__ 
#define __H_CPreviewAdmin__ 
 
class CDXGraph; 
class CDXFilter; 
class CAVDevice; 
class CVideoWindow; 
class CPreviewAdmin 
{ 
protected: 
	CDXGraph *		mGraph; 
	CVideoWindow *	mVideoWindow; 
	CAVDevice *		mVideoDevice; 
	CAVDevice *		mAudioDevice; 
	 
	// Filters 
	CDXFilter *		mVideoFilter; 
	CDXFilter *		mAudioFilter; 
	CDXFilter *		mVideoRenderer; 
	CDXFilter *		mAudioRenderer; 
 
public: 
	CPreviewAdmin(); 
	virtual ~CPreviewAdmin(); 
 
	void SetAVDevice(CAVDevice * inVideo, CAVDevice * inAudio); 
	void SetVideoWindow(CVideoWindow * inWindow); 
 
	virtual BOOL Activate(void); 
	virtual void Deactivate(void); 
 
	BOOL PlayGraph(void); 
	BOOL PauseGraph(void); 
	virtual BOOL StopGraph(void); 
 
	CDXFilter * GetVideoInputFilter(void) {return mVideoFilter;} 
	CDXFilter * GetAudioInputFilter(void) {return mAudioFilter;} 
 
	void ShowVideoCapturePropertyPage(void); 
	void ShowAudioCapturePropertyPage(void); 
 
protected: 
	virtual BOOL CreateGraph(void); 
	virtual void DeleteGraph(void); 
 
	virtual BOOL CreateInputFilters(void); 
	virtual void ReleaseInputFilters(void); 
 
	virtual BOOL CreateOutputFilters(void); 
	virtual void ReleaseOutputFilters(void); 
 
	virtual BOOL ConnectFilters(void); 
	virtual BOOL AfterBuildGraph(void); 
 
	// Utilities 
	BOOL RenderDVVideo(CDXGraph * inGraph, IPin * inDVPin, IPin * inRenderedPin); 
}; 
 
#endif // __H_CPreviewAdmin__