AMEXTRA.H

//==========================================================================; 
// 
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY 
//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR 
//  PURPOSE. 
// 
//  Copyright (c) 1992 - 1997  Microsoft Corporation.  All Rights Reserved. 
// 
//--------------------------------------------------------------------------; 
 
#ifndef __AMEXTRA__ 
#define __AMEXTRA__ 
 
// Simple rendered input pin 
// 
// NOTE if your filter queues stuff before rendering then it may not be 
// appropriate to use this class 
// 
// In that case queue the end of stream condition until the last sample 
// is actually rendered and flush the condition appropriately 
 
class CRenderedInputPin : public CBaseInputPin 
{ 
public: 
 
    CRenderedInputPin(TCHAR *pObjectName, 
                      CBaseFilter *pFilter, 
                      CCritSec *pLock, 
                      HRESULT *phr, 
                      LPCWSTR pName); 
 
    // Override methods to track end of stream state 
    STDMETHODIMP EndOfStream(); 
    STDMETHODIMP EndFlush(); 
 
    HRESULT Active(); 
    HRESULT Run(REFERENCE_TIME tStart); 
 
protected: 
 
    // Member variables to track state 
    BOOL m_bAtEndOfStream;      // Set by EndOfStream 
    BOOL m_bCompleteNotified;   // Set when we notify for EC_COMPLETE 
 
private: 
    void DoCompleteHandling(); 
}; 
 
#endif // __AMEXTRA__