Android Media Player RTSP

Estoy tratando de ver la transmisión RTSP en un dispositivo Android. Pero si el servidor establece la contraseña para la transmisión, mi Android no puede reproducirlo. Si sin contraseña está bien. Aquí están mis códigos.

public class VideoFragment extends Fragment implements View.OnClickListener, SurfaceHolder.Callback, MediaPlayer.OnPreparedListener {


VideoView m_videoView;
SurfaceView m_surfaceView;
SurfaceHolder m_surfaceHolder;
MediaPlayer m_mediaPlayer;
SharedPreferences m_sharedPref;
Boolean m_videoStarted;

public VideoFragment() {
    // Required empty public constructor
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_video, container, false);
    m_sharedPref = this.getActivity().getSharedPreferences(MainActivity.class.getSimpleName(), Context.MODE_PRIVATE);
    m_surfaceView = (SurfaceView) view.findViewById(R.id.surfaceView);
    m_surfaceHolder = m_surfaceView.getHolder();
    m_surfaceHolder.addCallback(this);
    m_surfaceHolder.setFixedSize(320, 240);
    m_videoStarted = false;
    ToggleButton togglePlay = (ToggleButton) view.findViewById(R.id.toggleVideo);
    togglePlay.setOnClickListener(this);
    return view;
}


@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.toggleVideo:
            if(m_videoStarted == false) {
                play();
                m_videoStarted = true;
            }
            else {
                m_mediaPlayer.reset();
            }

            break;
        default:
            Log.i(AppConfig.TAG, "DEFAULT");
            break;
    }
}

@Override
public void surfaceCreated(SurfaceHolder holder) {
    Log.e(AppConfig.TAG, "surfaceCreated");

}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
    m_mediaPlayer.release();
}

@Override
public void onPrepared(MediaPlayer mp) {
    Log.e(AppConfig.TAG, "Media Player Prepared");
    m_mediaPlayer.start();
}

private void play() {
    if(m_mediaPlayer == null) {
        m_mediaPlayer = new MediaPlayer();
    }
    setErrorListener();
    m_mediaPlayer.setDisplay(m_surfaceHolder);
    m_mediaPlayer.setOnPreparedListener(this);
    try {
        Map<String, String> headers =  createHeaders();
        String videoUri = "rtsp://192.168.1.100:554/video/3gpp";
        Log.i(AppConfig.TAG, "Video URI: " + videoUri);
        m_mediaPlayer.setDataSource(getActivity(), Uri.parse(videoUri), headers);
        m_mediaPlayer.prepareAsync();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

private void setErrorListener() {
    m_mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
        @Override
        public boolean onError(MediaPlayer mp, int what, int extra) {
            if(extra == MediaPlayer.MEDIA_ERROR_IO) {
                Log.e(AppConfig.TAG, "MEDIA ERROR");
            }
            else if(extra == MediaPlayer.MEDIA_ERROR_SERVER_DIED) {
                Log.e(AppConfig.TAG, "SERVER DIED ERROR");
            }
            else if(extra == MediaPlayer.MEDIA_ERROR_UNSUPPORTED) {
                Log.e(AppConfig.TAG, "MEDIA UNSUPPORTED");
            }
            else if(extra == MediaPlayer.MEDIA_ERROR_UNKNOWN) {
                Log.e(AppConfig.TAG, "MEDIA ERROR UNKOWN");
            }
            else if(extra == MediaPlayer.MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK) {
                Log.e(AppConfig.TAG, "NOT VALID PROGRESSIVE PLAYBACK");
            }
            else {
                Log.e(AppConfig.TAG, String.valueOf(what));
                Log.e(AppConfig.TAG, String.valueOf(extra));
                Log.e(AppConfig.TAG, "ERROR UNKNOWN!");
            }
            return false;
        }
    });
}

private Map<String, String> createHeaders() {
    String videoUri = "rtsp://192.168.1.100:554/video/3gpp";

    Map<String, String> headers =  new HashMap<String, String>();
    String camUser = "guest";//m_sharedPref.getString(AppConfig.CAM_USER,"");
    String camPassword = "tseug";//m_sharedPref.getString(AppConfig.CAM_PASSWORD,"");
    String describe = "DESCRIBE " + videoUri + " RTSP/1.0";
    String accept = "application/sdp";
    String basicAuthValue = "";

    if (camUser != "") {
        String credentials = camUser + ":" + camPassword;
        byte[] bytes = credentials.getBytes();
        int flags = Base64.URL_SAFE|Base64.NO_WRAP;
        basicAuthValue = "Basic " + Base64.encodeToString(bytes, flags);
        headers.put("Authorization", basicAuthValue);
    }

    headers.put("Request", describe);
    headers.put("Accept", accept);
    Log.i(AppConfig.TAG, "Describe: " + describe);
    Log.i(AppConfig.TAG, "Authorization: " + basicAuthValue);
    Log.i(AppConfig.TAG, "Accept: " + accept);
    return headers;
}

}

La cámara IP que uso es D-link DCS 942L. Siempre recibo una respuesta 401 de la cámara, pero mi nombre de usuario y contraseña son correctos. Aquí está el registro que obtuve

    05-25 21:45:31.640   1917-19687/? W/ARTSPConnection﹕ RTSP Response: 401
05-25 21:45:31.640   1917-19687/? I/MyHandler﹕ DESCRIBE completed with result 0 (Success)
05-25 21:45:31.640   1917-19687/? E/MyHandler﹕ Server responses [401] ERROR for the DESCRIBE request
05-25 21:45:31.645   1917-19687/? W/ARTSPConnection﹕ onReceiveResponse >>> State is not CONNECTED !!!
05-25 21:45:31.665   1917-19685/? V/NuPlayer﹕ scanning sources haveAudio=0, haveVideo=0
05-25 21:45:31.665   1917-19685/? V/MediaPlayerService﹕ [152] notify (0x41c61ca0, 100, 1, -2147483648)
05-25 21:45:31.665  19534-19547/com.cameraalert.app V/MediaPlayer﹕ message received msg=100, ext1=1, ext2=-2147483648
05-25 21:45:31.665  19534-19547/com.cameraalert.app E/MediaPlayer﹕ error (1, -2147483648)
05-25 21:45:31.665  19534-19547/com.cameraalert.app V/MediaPlayer﹕ callback application
05-25 21:45:31.665  19534-19547/com.cameraalert.app V/MediaPlayer﹕ back from callback
05-25 21:45:31.665  19534-19534/com.cameraalert.app E/MediaPlayer﹕ Error (1,-2147483648)
05-25 21:45:31.665  19534-19534/com.cameraalert.app E/CameraAlert﹕ 1
05-25 21:45:31.665  19534-19534/com.cameraalert.app E/CameraAlert﹕ -2147483648
05-25 21:45:31.665  19534-19534/com.cameraalert.app E/CameraAlert﹕ ERROR UNKNOWN!

Me pregunto si mi encabezado de solicitud es incorrecto. Y hay un artículo aquí.http://www.tuicool.com/articles/R7ZF7bF sobre cómo jugar RTSP con autenticación usando la misma cámara que yo uso. Estaré muy agradecido por cualquier ayuda o explicación.