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VideoWriterControler.h

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

#ifndef VideoWriterControler_h
#define VideoWriterControler_h

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

#include "IVideoWriterControler.h"


class VideoWriterControler : public CUnknown, IVideoWriterControler
{
public:
    virtual STDMETHODIMP    SetFrameSizes(int w, int h);
    virtual STDMETHODIMP    SetFilterGraph(IFilterGraph* iGraph);
    virtual STDMETHODIMP    PutFrame(BYTE *sample);
    virtual STDMETHODIMP    StopWriting();

    virtual STDMETHODIMP    GetNextData(BYTE **sample);
    virtual STDMETHODIMP    GetDataSizes(int* width, int* height);

    DECLARE_IUNKNOWN;

    static CUnknown * WINAPI CreateInstance(LPUNKNOWN unk, HRESULT *hr);

                    ~VideoWriterControler();

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

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

    CCritSec*       _putLock; // put-get synchronization
    CCritSec*       _getLock;
    CCritSec*       _nextPutLock;
    CCritSec*       _nextGetLock;

    BYTE*           _data;
    int             _width;
    int             _height;

    IMediaControl*  _imCtrl;
    IMediaEvent*    _imEvent;
    IMediaEventSink* _imEvSink;
    int             _stopping;

};

#endif

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