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- //------------------------------------------------------------------------------
- // File: DShowUtil.h
- //
- // Desc: DirectShow sample code - prototypes for utility functions
- //
- // Copyright (c) 2000-2001 Microsoft Corporation. All rights reserved.
- //------------------------------------------------------------------------------
-
-
- //
- // Function prototypes for DirectShow applications
- //
- HRESULT GetPin(IBaseFilter * pFilter, PIN_DIRECTION dirrequired,
- int iNum, IPin **ppPin);
-
- HRESULT FindOtherSplitterPin(IPin *pPinIn, GUID guid,
- int nStream, IPin **ppSplitPin);
-
- HRESULT SeekNextFrame(IMediaSeeking * pSeeking, double FPS, long Frame );
-
- IPin * GetInPin ( IBaseFilter *pFilter, int Num );
- IPin * GetOutPin( IBaseFilter *pFilter, int Num );
-
- HRESULT CountFilterPins(IBaseFilter *pFilter, ULONG *pulInPins, ULONG *pulOutPins);
- HRESULT CountTotalFilterPins(IBaseFilter *pFilter, ULONG *pulPins);
-
- // Find a renderer filter in an existing graph
- HRESULT FindRenderer(IGraphBuilder *pGB, const GUID *mediatype, IBaseFilter **ppFilter);
- HRESULT FindAudioRenderer(IGraphBuilder *pGB, IBaseFilter **ppFilter);
- HRESULT FindVideoRenderer(IGraphBuilder *pGB, IBaseFilter **ppFilter);
-
- // Finds a filter's server name
- void ShowFilenameByCLSID(REFCLSID clsid, TCHAR *szFilename);
-
- // Media file information
- HRESULT GetFileDurationString(IMediaSeeking *pMS, TCHAR *szDuration);
-
- // Property pages and capabilities
- BOOL SupportsPropertyPage(IBaseFilter *pFilter);
- HRESULT ShowFilterPropertyPage(IBaseFilter *pFilter, HWND hwndParent);
- BOOL CanFrameStep(IGraphBuilder *pGB);
-
- // Debug helper functions
- void TurnOnDebugDllDebugging( );
- void DbgPrint( char * pText );
- void ErrPrint( char * pText );
-
- // Adds/removes a DirectShow filter graph from the Running Object Table,
- // allowing GraphEdit to "spy" on a remote filter graph if enabled.
- HRESULT AddGraphToRot(IUnknown *pUnkGraph, DWORD *pdwRegister);
- void RemoveGraphFromRot(DWORD pdwRegister);
-