public ScannerAudio()
 {
     _writeToFile = false;
     _listDataBuffer_Audio = new ReadWriteBuffer (65535);
     _streamingPlayer = new StreamingPlaybackV2 ();
     _streamingPlayer.Start ();
 }
        /// <summary>
        /// Send login message to a PSM server
        /// </summary>
        /// <description>
        /// You can login to a PSM server in two ways:
        /// 1. Anonymous : You will only hear the scanner sound playback and see the scanner screen.
        /// 2. Admin : You will have full control over the scanner
        /// </description>
        /// <param name="m">Message</param>
        /// <seealso cref="ProScanMobile.Encryption"/>
        public void Login(string m)
        {
            _loginDone.Reset ();
            _httpResponse = string.Empty;

            Send (m);
            _sendDone.WaitOne ();

            if (_sendStatus == SendStatus.Ok) {
                Receive (ReceiveType.Http);
                _receiveDone.WaitOne ();

                if (_httpResponse == CONST_HTTP_OK) {

                    _connectionBuffer = new ReadWriteBuffer (65535);
                    _bytesReceived = 0;

                    Receive (ReceiveType.Data);
                    _receiveDone.WaitOne ();

                    string[] message = bytesTostring(_connectionBuffer.Read (_connectionBuffer.Count, true)).Split(' ');

                    if (message [2] == "PS20") {
                        _loginStatus = LoginStatus.Error;
                        _loginStatusMessage = "Connection refused.";
                    } else {
                        _loginStatus = LoginStatus.LoggedIn;
                        _loginStatusMessage = "Logged in.";
                    }
                } else {
                    _loginStatus = LoginStatus.Error;
                    _loginStatusMessage = "Connection refused.";
                }
            } else {
                _loginStatus = LoginStatus.Error;
                _loginStatusMessage = "Connection refused.";
            }

            _loginDone.Set ();
        }
        /// <summary>
        /// Close this instance.
        /// </summary>
        /// <description>
        /// Close the connection to the PSM server
        /// </description>
        public void Close()
        {
            _closeDone.Reset ();

            if (_tcpSocket != null) {

                _tcpSocket.Close ();

                _connectionStatus = ConnectionStatus.Disconnected;
                _connectionStatusMessage = "Closed.";

                _loginStatus = LoginStatus.LoggedOut;
                _loginStatusMessage = "Logged out.";

                _connectionBuffer = null;

                _tcpSocket = null;
            }

            _closeDone.Set ();
        }
        public void Dispose()
        {
            if (_writeToFile)
                StopOutputToFile ();

            _listDataBuffer_Audio = null;
            _streamingPlayer.Dispose ();
            _streamingPlayer = null;
        }