SIPSorcery.Net.RTSPResponse.ParseRTSPResponse C# (CSharp) Метод

        public static RTSPResponse ParseRTSPResponse(RTSPMessage rtspMessage)
        {
            RTSPResponseParserError dontCare = RTSPResponseParserError.None;
            return ParseRTSPResponse(rtspMessage, out dontCare);
        }

        public string GetStreamDescription(string url)
        {
            try
            {
                string hostname = Regex.Match(url, @"rtsp://(?<hostname>\S+?)/").Result("${hostname}");
                //IPEndPoint rtspEndPoint = DNSResolver.R(hostname, DNS_RESOLUTION_TIMEOUT);

                logger.Debug("RTSP Client Connecting to " + hostname + ".");
                TcpClient     rtspSocket = new TcpClient(hostname, RTSP_PORT);
                NetworkStream rtspStream = rtspSocket.GetStream();

                string      rtspSDP     = null;
                RTSPRequest rtspRequest = new RTSPRequest(RTSPMethodsEnum.DESCRIBE, url);
                RTSPHeader  rtspHeader  = new RTSPHeader(1, null);
                rtspRequest.Header = rtspHeader;
                string rtspReqStr = rtspRequest.ToString();

                RTSPMessage  rtspMessage  = null;
                RTSPResponse rtspResponse = null;

                byte[] rtspRequestBuffer = Encoding.UTF8.GetBytes(rtspReqStr);
                rtspStream.Write(rtspRequestBuffer, 0, rtspRequestBuffer.Length);

                byte[] buffer    = new byte[2048];
                int    bytesRead = rtspStream.Read(buffer, 0, 2048);

                if (bytesRead > 0)
                {
                    logger.Debug(Encoding.UTF8.GetString(buffer, 0, bytesRead));
                    byte[] msgBuffer = new byte[bytesRead];
                    Buffer.BlockCopy(buffer, 0, msgBuffer, 0, bytesRead);
                    rtspMessage = RTSPMessage.ParseRTSPMessage(msgBuffer, null, null);

                    if (rtspMessage.RTSPMessageType == RTSPMessageTypesEnum.Response)
                    {
                        rtspResponse = RTSPResponse.ParseRTSPResponse(rtspMessage);
                        logger.Debug("RTSP Response received: " + rtspResponse.StatusCode + " " + rtspResponse.Status + " " + rtspResponse.ReasonPhrase + ".");
                    }

                    rtspSDP = rtspResponse.Body;
                }
                else
                {
                    logger.Warn("Socket closed prematurely in GetStreamDescription for " + url + ".");
                }

                rtspSocket.Close();

                return(rtspSDP);
            }
            catch (Exception excp)
            {
                logger.Error("Exception GetStreamDescription. " + excp.Message);
                throw excp;
            }
        }