V4LCapture.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:  V4LCapture.h
// Author:    Alexander Kaspar, Tilo Gockel, Pedram Azad
// Date:      19.03.2009
// ****************************************************************************

#ifndef _V4L_CAPTURE_H_
#define _V4L_CAPTURE_H_


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

#include "Interfaces/VideoCaptureInterface.h"
#include <libv4l1-videodev.h>
#include <linux/videodev2.h>
#include <string>


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

class CByteImage;


// ****************************************************************************
// CV4LCapture
// ****************************************************************************

class CV4LCapture : public CVideoCaptureInterface
{
public:
        // constructor
        CV4LCapture(const char *pDeviceName = "/dev/video0", int nChannel = 0, CVideoCaptureInterface::VideoMode videoMode = CVideoCaptureInterface::e640x480);

        // destructor
        ~CV4LCapture();


        // public 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 attributes
        CVideoCaptureInterface::VideoMode m_videoMode;
        int width, height;

        std::string m_sDeviceName;
        int m_nDeviceHandle;
        int m_nChannel;

        video_mbuf memoryBuffer;
        video_mmap* mmaps;
        char *memoryMap;
        int channelNumber0;
        int depth;
        int bufferIndex;
};



#endif /* _V4L_CAPTURE_H_ */