@Override
protected void setup() {
// open camera and set resolution
cam = new VideoCapture();
cam.open(camId);
cam.set(Videoio.CV_CAP_PROP_FRAME_WIDTH, camWidth);
cam.set(Videoio.CV_CAP_PROP_FRAME_HEIGHT, camHeight);
// check if camera is open
if (!cam.isOpened()) {
throw new IllegalStateException("Couldn't open cam: " + camId);
}
}
@Override
protected void shutdown() {
System.out.println("Shutdown cam " + camId);
cam.release();
while (cam.isOpened()) {}
}