SIPSorcery.SoftPhone.MediaManager.RunLoopbackTest C# (CSharp) Method

        public void RunLoopbackTest()
        {
            _rtpManager = new RTPManager(false, true);
            _rtpManager.OnRemoteVideoSampleReady += EncodedVideoSampleReceived;

            var sdp = _rtpManager.GetSDP(false);
            _rtpManager.SetRemoteSDP(sdp);
        }
    }

        /// <summary>
        /// The button to place an outgoing call.
        /// </summary>
        private void CallButton_Click(object sender, RoutedEventArgs e)
        {
            if (m_uriEntryTextBox.Text.IsNullOrBlank())
            {
                SetStatusText(m_signallingStatus, "No call destination was specified.");
            }
            else if (m_uriEntryTextBox.Text == VIDEO_LOOPBACK_CALL_DESTINATION)
            {
                if (_localVideoMode == null)
                {
                    LocalVideoError("Please start the local video and try again.");
                }
                else
                {
                    SetStatusText(m_signallingStatus, "Running video loopback test...");

                    m_callButton.Visibility   = Visibility.Collapsed;
                    m_cancelButton.Visibility = Visibility.Collapsed;
                    m_byeButton.Visibility    = Visibility.Visible;

                    _mediaManager.RunLoopbackTest();
                }
            }
            else
            {
                SetStatusText(m_signallingStatus, "calling " + m_uriEntryTextBox.Text + ".");

                m_callButton.Visibility   = Visibility.Collapsed;
                m_cancelButton.Visibility = Visibility.Visible;
                m_byeButton.Visibility    = Visibility.Collapsed;

                string destination = m_uriEntryTextBox.Text;

                // SIP call.
                _activeClient = _sipClient;
                Task.Run(() => { _sipClient.Call(_mediaManager, destination); });
            }
        }