y8filter.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. 
*
\******************************************************************* ---*/ 

#ifndef Y8FILTER_H			
#define Y8FILTER_H

// Class supporting the Y8Convert input pin

#define NUM_PINS          2
#define OUTPUT_PIN_INDEX  0
#define INPUT_PIN_INDEX   1


class CY8Filter :  public CBaseFilter
{
public:
    
public:
    CCritSec*  getCriticalSection(){return &_critical_section;}

    static CUnknown * WINAPI CreateInstance(LPUNKNOWN lpunk, HRESULT *phr);
    CY8Filter(LPUNKNOWN lpunk, HRESULT *phr);
    ~CY8Filter();
    
    DECLARE_IUNKNOWN;


    DWORD getWidth(){return _video_header.bmiHeader.biWidth;}
    DWORD getHeight(){return _video_header.bmiHeader.biHeight;}
    VIDEOINFOHEADER* getVideoInfoHeader(){return &_video_header;}

    VOID setInputFormat(VIDEOINFOHEADER* p_format);

    int GetPinCount();
    CBasePin * GetPin(int n);
    
    STDMETHODIMP Stop();
    STDMETHODIMP Pause();
    STDMETHODIMP Run(REFERENCE_TIME tStart);
    STDMETHODIMP QueryFilterInfo(FILTER_INFO * pInfo);
    
public:
    
    void convertBuffer(
        PBYTE p_input_buffer, 
        PBYTE p_output_buffer,
        DWORD input_buffer_size,
        DWORD output_buffer_size,
        CMediaType* pmt);
    
    CMediaType* m_pOutputMediaType;

private:
    CBasePin*       _pins[NUM_PINS];
    CCritSec        _critical_section;

    VIDEOINFOHEADER _video_header;
};





#endif	//Y8FILTER_H