webcam/pwc-wrapper.h

#ifndef PWCWRAPPER_H_
#define PWCWRAPPER_H_

#include <linux/videodev.h>
#include <sys/ioctl.h>
#include "pwc-ioctl.h"

/*
 * These are the hidden data structures which reveal the file descriptor
 * of an OpenCV capturing device. CvCaptureCAM_V4L can be used by explicit
 * typecasting an CvCapture structure. The file descriptor is needed to
 * access the extended functions of Philips web cameras. Note that these
 * structures are copied from OpenCV, version 1.0.0. If you want to use future
 * versions you will perhaps have to copy them again from cvcap_v4l.cpp
 * and _highgui.h (from otherlibs/highgui/). Details are available on
 * www.rainsoft.de.
 */
typedef void         (CV_CDECL* CvCaptureCloseFunc)         ( CvCapture* capture );
typedef int          (CV_CDECL* CvCaptureGrabFrameFunc)     ( CvCapture* capture );
typedef IplImage   * (CV_CDECL* CvCaptureRetrieveFrameFunc) ( CvCapture* capture );
typedef double       (CV_CDECL* CvCaptureGetPropertyFunc)   ( CvCapture* capture, int id );
typedef int          (CV_CDECL* CvCaptureSetPropertyFunc)   ( CvCapture* capture, int id, double value );
typedef const char * (CV_CDECL* CvCaptureGetDescriptionFunc)( CvCapture* capture );

typedef struct CvCaptureVTable
{
    int                           count;
    CvCaptureCloseFunc            close;
    CvCaptureGrabFrameFunc        grab_frame;
    CvCaptureRetrieveFrameFunc    retrieve_frame;
    CvCaptureGetPropertyFunc      get_property;
    CvCaptureSetPropertyFunc      set_property;
    CvCaptureGetDescriptionFunc   get_description;
}
CvCaptureVTable;

typedef struct CvCaptureCAM_V4L
{
    CvCaptureVTable* vtable;
    int deviceHandle;
    int bufferIndex;
    int FirstCapture;
    struct video_capability capability;
    struct video_window     captureWindow;
    struct video_picture    imageProperties; 
    struct video_mbuf       memoryBuffer;
    struct video_mmap       *mmaps;
    char *memoryMap;
    IplImage frame;
    #ifdef HAVE_CAMV4L2
    buffer buffers[10];
    struct v4l2_capability cap;
    struct v4l2_input inp;
    struct v4l2_format form;
    struct v4l2_crop crop;
    struct v4l2_cropcap cropcap;
    struct v4l2_requestbuffers req;
    struct v4l2_jpegcompression compr;
    struct v4l2_control control;
    enum v4l2_buf_type type;
    struct v4l2_queryctrl queryctrl;
    struct v4l2_querymenu querymenu;
    int v4l2_brightness, v4l2_brightness_min, v4l2_brightness_max;
    int v4l2_contrast, v4l2_contrast_min, v4l2_contrast_max;
    int v4l2_saturation, v4l2_saturation_min, v4l2_saturation_max;
    int v4l2_hue, v4l2_hue_min, v4l2_hue_max;
    int v4l2_gain, v4l2_gain_min, v4l2_gain_max;
    #endif
}
CvCaptureCAM_V4L;

class PwcWrapper {

public:

        PwcWrapper(CvCapture* camera_device){ cam = (CvCaptureCAM_V4L*)camera_device; }

        ~PwcWrapper(){}

    int  GetFrameRate();

    void SetFrameRate(int fps);

    void SaveUserSettingsToEEPROM();

    void RestoreUserSettingsFromEEPROM();

    void ResetEEPROM();

    int  GetCompressionMode();

    void SetCompressionMode(int newmode);

    int  GetAutomaticGainControl();

    void SetAutomaticGainControl(int newagc);

    void SetShutterSpeed(int speed);

    void SetWhitebalance(int mode, int red, int blue);

    void SetAutomaticWhiteBalanceSpeed(int speed, int delay);

    void SetCameraLED(int on_time, int off_time);

    void SetElectronicSharpness(int newvalue);

    void SetBacklightCompensationMode(int newmode);

    void SetAntiFlickerMode(int newmode);

    void SetDynamicNoiseReductionMode(int newmode);

    void PrintRealImageSize();

private:

    CvCaptureCAM_V4L* cam;
};

#endif /*PWCWRAPPER_H_*/

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