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TVReaderControler.h

/*
 *  Copyright (c) 2000, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *  Author(s):
 *  Marc Navarro            (mnavarro@wins.uva.nl)
 */

#ifndef TVReaderControler_h
#define TVReaderControler_h

#include <windows.h>
#include <streams.h>
#include <dvdmedia.h>

#include "IVideoReaderControler.h"


class TVReaderControler : public CUnknown, IVideoReaderControler
{
public:
    static CUnknown* WINAPI CreateInstance(LPUNKNOWN unk, HRESULT *hr);
                            ~TVReaderControler();

    virtual STDMETHODIMP    SetFrameCapacity(int num);
    virtual STDMETHODIMP    GetFrameCapacity(int *num);

    virtual STDMETHODIMP    GetLength(int *num);
    virtual STDMETHODIMP    GetFrameWidth(int *width);
    virtual STDMETHODIMP    GetFrameHeight(int *height);
    virtual STDMETHODIMP    GetFrame(int num, BYTE **sample);

    virtual STDMETHODIMP    SetFilterGraph(IFilterGraph* iGraph);

    virtual STDMETHODIMP    NextData(BYTE *sample);
    virtual STDMETHODIMP    SetDataSizes(int width, int height);

    DECLARE_IUNKNOWN;


private:
                    TVReaderControler(LPUNKNOWN unk, HRESULT *hr);

                    // Overriden to say what interfaces we support where
    STDMETHODIMP    NonDelegatingQueryInterface(REFIID riid, void ** ppv);

    CCritSec*       _critSec; // for locking critical sections

    BYTE*           _currentData;
    BYTE*           _newData;
    int             _newAvailable;

    int             _width;
    int             _height;

    IMediaControl*  _imCtrl;
};

#endif

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