inputpin.h

完整的基于Conxant平台的USB电视棒的WIN驱动程序。

/*+++ *******************************************************************\ 
* 
*  Copyright and Disclaimer: 
*  
*     --------------------------------------------------------------- 
*     This software is provided "AS IS" without warranty of any kind, 
*     either expressed or implied, including but not limited to the 
*     implied warranties of noninfringement, merchantability and/or 
*     fitness for a particular purpose.
*     --------------------------------------------------------------- 
*   
*     Copyright (c) 2008 Conexant Systems, Inc. 
*     All rights reserved. 
*
\******************************************************************* ---*/ 

class CY8Filter;

class CInputPin : public CBaseInputPin
{
public:
    CInputPin(CY8Filter *pTextOutFilter,
                   HRESULT *phr,
                   LPCWSTR pPinName);
    ~CInputPin();

	// Check that we can support this input type
    HRESULT CheckMediaType(const CMediaType *pmt);
	HRESULT SetMediaType(const CMediaType* mt);
    
	// IMemInputPin virtual methods
    // Override so we can show and hide the window      
    HRESULT Active(void);
    HRESULT Inactive(void);
    
	// Here's the next block of data from the stream.
    // AddRef it if you are going to hold onto it
    STDMETHODIMP Receive(IMediaSample *pSample);

    STDMETHODIMP EndOfStream();

    inline IPin * GetConnectedOutputPin() { return (m_Connected); }

    // inherited from IQualityControl via CBasePin
    STDMETHODIMP Notify(IBaseFilter * pSender, Quality q);

private:
  CY8Filter*          m_pFilter;         // The filter that owns us
  CCritSec              _critical_section;
}; // CInputPin