Nobody/Anonymous - 2008-07-22

Hi, I'm using fobs to do some validation on .wma and .3gp files before our application upload a media file. Here is my code:
    MediaLocator ml = new MediaLocator("file:///" + fileName);
    com.omnividea.media.protocol.file.DataSource ds = new com.omnividea.media.protocol.file.DataSource(null);
    ds.setLocator(ml);
    Parser parser = new Parser();
    int codec = 0;   
    try {
      parser.setSource(ds);
      parser.open();
      String parserStr = parser.toString();
      Track[] tracks = parser.getTracks();
      Track video = null;
      for (int i = 0; i < tracks.length; i ++)
      {
        if (tracks[i].getFormat() instanceof VideoFormat){
          VideoFormat videoFormat = (VideoFormat)tracks[i].getFormat();
          String videoFormatStr = videoFormat.toString();
          String encoding = videoFormat.getEncoding();
          if (videoFormat instanceof H263Format){
          ....
          }
        ...
       }
     ...
     }
My question is how do I get the codec of the VideoFormat. I use a .3gp file with H263 codec. The encoding returned is "ffmpeg_video", not the codec. The if (videoFormat instanceof H263Format) does not work either. videoFormat is an instanceof AviVideoFormat. I need to validate the codec of the media file. Thanks a lot.