/**
  * Appends a frame to the current video.
  *
  * @param image the image to append
  * @return true if image successfully appended
  */
 protected boolean append(Image image) {
   BufferedImage bi;
   if (image instanceof BufferedImage) {
     bi = (BufferedImage) image;
   } else {
     bi = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_RGB);
     Graphics2D g = bi.createGraphics();
     g.drawImage(image, 0, 0, null);
   }
   ByteArrayOutputStream out = new ByteArrayOutputStream();
   try {
     if (!editing) {
       videoMedia.beginEdits();
       editing = true;
     }
     ImageIO.write(bi, "png", out); // $NON-NLS-1$
     QTHandle handle = new QTHandle(out.toByteArray());
     DataRef dataRef = new DataRef(handle, kDataRefFileExtensionTag, "png"); // $NON-NLS-1$
     GraphicsImporter importer = new GraphicsImporter(dataRef);
     ImageDescription description = importer.getImageDescription();
     int duration = (int) (frameDuration * 0.6);
     videoMedia.addSample(
         handle,
         0, // data offset
         handle.getSize(),
         duration,
         description,
         1, // number of samples
         0); // key frame??
   } catch (Exception ex) {
     ex.printStackTrace();
     return false;
   }
   return true;
 }
 /**
  * Saves the video to the current scratchFile.
  *
  * @throws IOException
  */
 protected void saveScratch() throws IOException {
   if (movie != null && editing)
     try {
       // end edits and save the scratch
       videoMedia.endEdits();
       int trackStart = 0;
       int mediaTime = 0;
       int mediaRate = 1;
       videoTrack.insertMedia(trackStart, mediaTime, videoMedia.getDuration(), mediaRate);
       editing = false;
       OpenMovieFile outStream = OpenMovieFile.asWrite(new QTFile(scratchFile));
       movie.addResource(outStream, movieInDataForkResID, scratchFile.getName());
       outStream.close();
       movie = null;
       OSPLog.finest(
           "saved " + frameCount + " frames in " + scratchFile); // $NON-NLS-1$ //$NON-NLS-2$
     } catch (QTException ex) {
       throw new IOException("caught in saveScratch: " + ex.toString()); // $NON-NLS-1$
     }
 }