#ifndef _V4L_HH_
#define _V4L_HH_

#include <asm/types.h>
#include <errno.h>
#include <fcntl.h>
#include <iostream.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>

#include "videodev.h"
#include "VideoIn.hh"

class V4L : public VideoIn
{
public:
  V4L( char* videoName, char* deviceName, 
       int channel, int videoMode, int videoFormat,
       int width, int height,
       int bitsPerPixel);
  
  virtual ~V4L ();

  ErrType read       (Image* image);
  ErrType readAhead  ();
  ErrType readDirect (Image* image);
  ErrType advance    ();
  
  ErrType width      (int newW);
  ErrType height     (int newH);
  ErrType bitDepth   (int newBitDepth);
  ErrType byteDepth  (int newByteDepth);

  /** \fn Image* V4L::image (void)
   *  \brief Returns a pointer to copy_ if the current image is buffered.
   *  Returns direct_ otherwise.
   *  \param none
   *  \returns A pointer to the current frame (either copy_ or direct_)
   */
  Image*  image      (void);

private:
  int v4lfd;			// the video device descriptor
  char* deviceName;		// filename for the v4l device

  /* Grabbing stuff */
  struct video_capability grabCapability;
  struct video_mmap grabBuffer;
  struct video_channel grabChannel;
  struct video_picture grabPicture;
  struct video_window grabWindow;
  int grabInput;
  int grabNorm;
  int grabFrameNumber;
};

#endif /* _V4L_HH_ */