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VideoReaderControler.h

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

#ifndef VideoReaderControler_h
#define VideoReaderControler_h

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

#include "IVideoReaderControler.h"

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

    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:
                    VideoReaderControler(LPUNKNOWN unk, HRESULT *hr);

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

    void            readFrames(int first);

    BYTE**          _data;
    int             _dataSize;
    int             _dataOffset; //number of first frame in _data
    int             _dataFree;   //first free position in _data

    //int             _currentFrame;
    //int             _currentIndex;
    //int             _requestedFrame;

    int             _width;
    int             _height;
    int             _length;
    int             _empty; //initial empty frames

    //int             _paused;
    int             _testingEnd;

    IMediaControl*  _imCtrl;
    IMediaSeeking*  _imSeek;
    IMediaEvent*    _imEvent;

    CCritSec*       _ofsSec;
    ofstream        _ofs;
    int             _ofs_open;
};

#endif

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