I'm trying to Transcode audio streams, by porting code from xuggler

[radut]

Hi, could you help me with an audio transcode to output stream mp3 @ any bitrate - > mp3 @ 256kbps

my code in xuggler is :

public static void convertToMP3Xuggler( File inputPath, OutputStream os, final int kbps ) { // modify on your convenience

    // create a media reader
    System.out.println( inputPath.getPath( ) );
    final IMediaReader mediaReader = ToolFactory.makeReader( inputPath.getPath( ) );

    // create a media writer
    // IMediaWriter mediaWriter = ToolFactory.makeWriter( XugglerIO.map( XugglerIO.generateUniqueName( os, ".mp3" ), os ), mediaReader );
    IMediaWriter mediaWriter = ToolFactory.makeWriter( XugglerIO.map( os ), mediaReader );
    // manually set the container format (because it can't detect it by filename anymore)
    IContainerFormat containerFormat = IContainerFormat.make( );
    containerFormat.setOutputFormat( "mp3", null, "audio/mpeg3" );
    // containerFormat.setOutputFormat( "mp4", null, "audio/x-aac" );
    mediaWriter.getContainer( ).setFormat( containerFormat );

    // add a writer to the reader, to create the output file
    mediaReader.addListener( mediaWriter );

    // add a IMediaListner to the writer to change bit rate
    mediaWriter.addListener( new MediaListenerAdapter( ) {
        @Override
        public void onAddStream( IAddStreamEvent event ) {

            IStreamCoder streamCoder = event.getSource( ).getContainer( ).getStream( event.getStreamIndex( ) ).getStreamCoder( );
            streamCoder.setFlag( IStreamCoder.Flags.FLAG_QSCALE, false );
            streamCoder.setBitRate( kbps * 1000 );
            streamCoder.setBitRateTolerance( 0 );
        }
    } );

    // read and decode packets from the source file and
    // and dispatch decoded audio and video to the writer
    System.out.println( "start packet" );
    new Thread( ) {
        @Override
        public void run() {

            while ( mediaReader.readPacket( ) == null );
            System.out.println( "end packet" );
        }
    }.start( );
}

[metasonic]

any luck with this?