Required noob preface: Hi, I'm new to Processing, and I can't figure out how to fix this problem.

I'm trying to capture the input from a webcam, and then playback the recording while continuing to capture input from the webcam, and all I'm getting for the video playback is black.

Thanks for your help!

1. import processing.video.*;
   
   Capture reader;
   MovieMaker writer;
   Movie viewer;
   
   char w = 'w';
   int v = 0;
   int counter = 0;
   
   void setup() {
      size( 320, 240, P2D );
     
      reader = new Capture( this, width, height, 30 );
      writer = new MovieMaker( this, width, height, "data/" + w + v + ".mov", 30,
                               MovieMaker.H263, MovieMaker.WORST );
      viewer = new Movie( this, "whitespace.mov" );
      viewer.loop();
        
      background( 255 );
   }
   
   void captureEvent( Capture reader ) {
      reader.read();
   }
   
   void movieEvent( Movie m ) {
      m.read();
   }
   
   void draw() {
      image( reader, 0, 0, width/2, height/2 );
      image( viewer, width/2, height/2, width, height );
     
      println( counter );
     
      counter++;
     
      writer.addFrame();
   
      if ( counter > 300 ) {
         writer.finish();
      }
      if ( counter > 400 ) {
         viewer = new Movie( this, w + v + ".mov" );
      }
   }