QuicktimeCapture.h

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// ****************************************************************************
// This file is part of the Integrating Vision Toolkit (IVT).
//
// The IVT is maintained by the Karlsruhe Institute of Technology (KIT)
// (www.kit.edu) in cooperation with the company Keyetech (www.keyetech.de).
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// ****************************************************************************
// ****************************************************************************
// Filename:  QuicktimeCapture.h
// Author:    Pedram Azad
// Date:      2005
// ****************************************************************************


#ifndef _QUICKTIME_CAPTURE_H
#define _QUICKTIME_CAPTURE_H_


// ****************************************************************************
// Necessary includes
// ****************************************************************************

#include "Interfaces/VideoCaptureInterface.h"
#include <QuickTime/QuickTimeComponents.h>
#include <string>


// ****************************************************************************
// Forward declarations
// ****************************************************************************

class CByteImage;



// ****************************************************************************
// CQuicktimeCapture
// ****************************************************************************

class CQuicktimeCapture : public CVideoCaptureInterface
{
public:
        // constructor
        CQuicktimeCapture(VideoMode mode, const char *pComponentName = 0);
        
        // destructor
        ~CQuicktimeCapture();
        

        // virtual methods
        bool OpenCamera();
        void CloseCamera();
        bool CaptureImage(CByteImage **ppImages);
        
        int GetWidth() { return width; }
        int GetHeight() { return height; }
        CByteImage::ImageType GetType() { return CByteImage::eRGB24; }
        int GetNumberOfCameras() { return 1; }


private:
        // private methods
        static pascal OSErr sDataProc(SGChannel c, Ptr p, long len, long *offset, long chRefCon, TimeValue time, short writeType, long refcon);
        OSErr dataProc(SGChannel c, Ptr p, long length);
        
        // private attributes
        SeqGrabComponent grabber;
        SGChannel videoChannel;
        GWorldPtr gWorld;
        ImageDescriptionHandle imgDesc;
        
        long m_lImageLength;
        char *m_pBuffer;
        bool m_bImagePending;
        
        const VideoMode m_mode;
        int width, height;

        std::string m_sComponentName;
        Rect srcRect;
};



#endif /* QUICKTIME_CAPTURE_H_ */