How to get duration of Audio Stream and continue audio streaming from any point

Description:

I have following code for an Audio player. I can continue Audio playback from any duration by clicking on Progress Bar(between 0-to-mediaplayer.getDuration()). It is working perfectly for Audio playback.

Problem in Audio Streaming:

• When I stream an Audio file from an internet server (say s3-bucket) it starts streaming correctly.
• But mediaPlayer.getDuration() and mediaPlayer.getCurrentPosition() return wrong values. At the beginning of streaming mediaPlayer.getCurrentPosition() returns 5 hours.
• Due to this I am not able to continue Audio streaming from a specified duration of Stream (0-to-Stream Duration).

Questions:

1. How can I get the duration of an Audio stream
2. How can I continue Audio Streaming from a specified duration. For example for a file of 10-minute duration, I want to start streaming from 6th minute.

Code:

public class MyAudioPlayer extends Activity 
implements OnClickListener{


    MediaPlayer mediaPlayer = null;
    private boolean isPaused=false;
    private boolean isStop = true;

    String filePath = null;
    String productName = null;

    ImageButton btnPlay = null;
    ImageButton btnPause = null;
    ImageButton btnReset = null;
    ImageButton btnStop = null;

    AudioManager audioManager = null;
    SeekBar volControl = null;
    SeekBar progressControl = null;
    TextView progressText = null;
    long durationInMillis = -1;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.ltd_audio_player);

        volControl = (SeekBar)findViewById(R.id.player_volume);
        progressControl = (SeekBar)findViewById(R.id.player_seekbar);
        progressText = (TextView) findViewById(R.id.player_progress_text);

        btnPlay = (ImageButton) findViewById(R.id.ic_