tutorial-grabber-v4l2.cpp

#include <visp3/sensor/vpV4l2Grabber.h>
#include <visp3/gui/vpDisplayX.h>
#include <visp3/core/vpImage.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
}