I am running this code on the Galaxy Tab 2. It shows an image, but I would like a live video and the image stops updating after a second. If anyone can see something obvious that I'm missing I'd be much obliged.

1. import ketai.camera.*;
   KetaiCamera cam;
   
   void setup() {
     orientation(LANDSCAPE);
     cam = new KetaiCamera(this, 320, 240, 24);
    // int camnum = cam.getNumberOfCameras();
     cam.setCameraID(1);// changes the camera to the front.
     cam.start();
   }
   
   void draw() {
   }
   
   void onCameraPreviewEvent()
   {
     cam.read();
     cam.loadPixels();
     image(cam, 0, 0, 320, 240); // Draw the webcam video onto the screen
     println("previewing");
   }
   
   void exit() {
     cam.stop();
   }