How to calculate the audio amplitude in real time (android)

I am working on an Android app where I need to calculate the audio amplitude in real time. As of now I am using MediaPlayer to play the track. Is there a way to calculate its amplitude in real time while playing it.

Here i my code:

int counterPlayer = 0; static double[] drawingBufferForPlayer = new double[100];

private byte[] mBytes;
private byte[] mFFTBytes;
private Visualizer mVisualizer;

public void link(final MediaPlayer player)
{
    if(player == null)
    {
        throw new NullPointerException("Cannot link to null MediaPlayer");
    }

    // Create the Visualizer object and attach it to our media player.
    mVisualizer = new Visualizer(player.getAudioSessionId());
    mVisualizer.setCaptureSize(Visualizer.getCaptureSizeRange()[1]);
    //mVisualizer.setMeasurementMode(Visualizer.MEASUREMENT_MODE_PEAK_RMS);

    // Pass through Visualizer data to VisualizerView
    Visualizer.OnDataCaptureListener captureListener = new Visualizer.OnDataCaptureListener()
    {
        @Override
        public void onWaveFormDataCapture(Visualizer visualizer, byte[] bytes,
                                          int samplingRate)
        {
            updateVisualizer(bytes);
        }

        @Override
        public void onFftDataCapture(Visualizer visualizer, byte[] bytes,
                                     int samplingRate)
        {
            updateVisualizerFFT(bytes);
        }
    };

    mVisualizer.setDataCaptureListener(captureListener,
            Visualizer.getMaxCaptureRate() / 2, true, true);
    // Enabled Visualizer and disable when we're done with the stream
    mVisualizer.setEnabled(true);
    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener()
    {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer)
        {
            mVisualizer.setEnabled(false);
        }
    });
}
public void updateVisualizer(byte[] bytes) {

    int t = calculateRMSLevel(bytes);
    Visualizer.MeasurementPeakRms measurementPeakRms = new Visualizer.MeasurementPeakRms();
    int x = mVisualizer.getMeasurementPeakRms(measurementPeakRms);
    mBytes = bytes;
}

/**
 * Pass FFT data to the visualizer. Typically this will be obtained from the
 * Android Visualizer.OnDataCaptureListener call back. See
 * {@link android.media.audiofx.Visualizer.OnDataCaptureListener#onFftDataCapture }
 * @param bytes
 */
public void updateVisualizerFFT(byte[] bytes) {
    int t = calculateRMSLevel(bytes);
    mFFTBytes = bytes;
}
public int calculateRMSLevel(byte[] audioData) {
    //System.out.println("::::: audioData :::::"+audioData);
    double amplitude = 0;
    for (int i = 0; i < audioData.length; i++) {
        amplitude += Math.abs((double) (audioData[i] / 32768.0));
    }
    amplitude = amplitude / audioData.length;
    //Add this data to buffer for display
    if (counterPlayer < 100) {
        drawingBufferForPlayer[counterPlayer++] = amplitude;
    } else {
        for (int k = 0; k < 99; k++) {
            drawingBufferForPlayer[k] = drawingBufferForPlayer[k + 1];
        }
        drawingBufferForPlayer[99] = amplitude;
    }

    updateBufferDataPlayer(drawingBufferForPlayer);
    setDataForPlayer(100,100);

    return (int)amplitude;
}