MediaDiscoverer pictureMediaDiscoverer = mediaPlayerFactory.newMediaDiscoverer("picture_dir");
Thread.sleep(500); // FIXME not acceptable
MediaList pictureFileList = pictureMediaDiscoverer.getMediaList();
// pictureFileList.addMediaListEventListener(this);
List<MediaListItem> pictureFiles = pictureFileList.items();
System.out.println("Picture Files:");
dumpItems(pictureFiles, 1);
System.out.println("DONE!");