AudioTimestampTest.java

final AudioTrack track = new AudioTrack(
  AudioManager.STREAM_MUSIC, AUDIO_SAMPLING_RATE,
  AudioFormat.CHANNEL_OUT_MONO,
  AudioFormat.ENCODING_DEFAULT, AUDIO_TOTAL_BYTES,
  AudioTrack.MODE_STREAM);
track.setPlaybackPositionUpdateListener(
  new AudioTrack.OnPlaybackPositionUpdateListener() {
    @Override
    public void onMarkerReached(AudioTrack track) {
        track.stop();
    }

    @Override
    public void onPeriodicNotification(AudioTrack track) {
    }
});
track.setNotificationMarkerPosition(AUDIO_TOTAL_BYTES / 2);
track.write(bufToFill, 0, AUDIO_TOTAL_BYTES);

final long startedNanoTime = System.nanoTime();
track.play();

final AudioTimestamp timestamp = new AudioTimestamp();
final Runnable uiLoop = new Runnable() {
    @Override
    public void run() {
        boolean isTimestampAvailable = track.getTimestamp(timestamp);
        if (track.getPlayState() == AudioTrack.PLAYSTATE_STOPPED) {
            uiUpdater.removeCallbacks(this);
            jitterView.setText(jitterView.getText() + "\n");
            Log.d(TAG, jitterView.getText().toString());
            return;
        }
        if (isTimestampAvailable) {
            long jitterMs = (timestamp.nanoTime - System.nanoTime()) / 1000000;
            jitterView.setText(jitterView.getText() + String.format("%1$,d, ", jitterMs));
            msgView.setText(
              String.format("time=%1$,13d ns, pos=%2$d(pbhead=%3$d)",
                timestamp.nanoTime - startedNanoTime, timestamp.framePosition,
                track.getPlaybackHeadPosition()));
        }
        else {
            msgView.setText("AudioTrack#getTimestamp is not available");
        }
        rootView.invalidate();
        uiUpdater.removeCallbacks(this);
        uiUpdater.postDelayed(this, 16);
    }
};