code: private static List<WebcamDevice> getDevices(List<Webcam> webcams) {
  		List<WebcamDevice> devices = new ArrayList<WebcamDevice>();
  		for (Webcam webcam : webcams) {
  			devices.add(webcam.getDevice());
  		}
  		return devices;
  	}
docs: Get list of devices used by webcams.
  
  @return List of webcam devices