tutorial-visp-grabber-v4l2.cpp

#include <visp/vpDisplayX.h>
#include <visp/vpImage.h>
#include <visp/vpV4l2Grabber.h>

int
main()
{
#ifdef VISP_HAVE_V4L2
  try
  {
    vpImage< unsigned char > I;

    vpV4l2Grabber g;
    g.open( I );

    std::cout << "Image size: " << I.getWidth() << " " << I.getHeight() << std::endl;

#ifdef VISP_HAVE_X11
    vpDisplayX d( I );
#else
    std::cout << "No image viewer is available..." << std::endl;
#endif

    while ( 1 )
    {
      g.acquire( I );
      vpDisplay::display( I );
      vpDisplay::flush( I );
      if ( vpDisplay::getClick( I, false ) )
        break;
    }
  }
  catch ( vpException e )
  {
    std::cout << "Catch an exception: " << e << std::endl;
  }
#endif
}