int pos = 0; 
 
void setup() {	 
  size(320, 240); 
  noBackground(); 
  beginVideo(2, 240, 24);  
} 
 
// Called every time there is a new video frame ready 
public void videoEvent() {  
  pos = pos + 2; 
  if(pos >= width) { 
    pos = 0; 
  } 
} 
 
void loop() { 
  // Display the captured frame at position [0, 0] 
  image(video, pos, 0);   	 
}