// Perform conversion(s)
MultimediaConversionRequest request = new MultimediaConversionRequest();
request.setInFile( file );
request.setThumbnailRequested(true);
request.setProgress( new MultimediaProgressAdaptor() );
MultimediaClass mmClass = MimeUtils.getMultimediaClassFromMimeType(mimeType);
if( MultimediaClass.VIDEO == mmClass ) {
// For video file, convert to appropriate file type
mmConverter.convertVideo(request);