コード例 #1
0
ファイル: RtspDispatcher.cs プロジェクト: ezrover/SharpRTSP
        /// <summary>
        /// Configures the transport and forwarder.
        /// </summary>
        /// <param name="aMessage">A message.</param>
        /// <param name="forwarder">The preset forwarder.</param>
        /// <returns>The configured forwarder.</returns>
        private static Forwarder ConfigureTransportAndForwarder(RtspMessage aMessage, UDPForwarder forwarder)
        {
            RtspTransport transport = RtspTransport.Parse(aMessage.Headers[RtspHeaderNames.Transport]);

            Forwarder resultForwarder;
            if (transport.LowerTransport == RtspTransport.LowerTransportType.UDP)
            {
                if (transport.ServerPort != null)
                {
                    forwarder.SourcePortVideo = transport.ServerPort.First;
                    forwarder.ForwardPortCommand = transport.ServerPort.Second;
                }
                resultForwarder = forwarder;
            }
            else
            {
                TCPtoUDPForwader TCPForwarder = new TCPtoUDPForwader();
                TCPForwarder.ForwardCommand = aMessage.SourcePort;
                TCPForwarder.SourceInterleavedVideo = transport.Interleaved.First;
                TCPForwarder.ForwardInterleavedCommand = transport.Interleaved.Second;
                // we need to transfer already getted values
                TCPForwarder.ForwardHostVideo = forwarder.ForwardHostVideo;
                TCPForwarder.ForwardPortVideo = forwarder.ForwardPortVideo;
                TCPForwarder.SourcePortCommand = forwarder.SourcePortCommand;
                TCPForwarder.ToMulticast = forwarder.ToMulticast;

                resultForwarder = TCPForwarder;
            }

            if (resultForwarder.ToMulticast)
            {
                // Setup port and destination multicast.
                resultForwarder.ForwardHostVideo = CreateNextMulticastAddress();
                resultForwarder.ForwardPortVideo = forwarder.FromForwardVideoPort;

                RtspTransport newTransport = new RtspTransport()
                {
                    IsMulticast = true,
                    Destination = resultForwarder.ForwardHostVideo,
                    Port = new PortCouple(resultForwarder.ForwardPortVideo, resultForwarder.ListenCommandPort)
                };
                if ((resultForwarder is UDPForwarder && forwarder.ForwardPortCommand == 0)
                  || (resultForwarder is TCPtoUDPForwader && (resultForwarder as TCPtoUDPForwader).ForwardInterleavedCommand == 0))
                {
                    newTransport.Port = null;
                }
                aMessage.Headers[RtspHeaderNames.Transport] = newTransport.ToString();
            }
            else
            {
                RtspTransport newTransport = new RtspTransport()
                {
                    IsMulticast = false,
                    Destination = forwarder.ForwardHostVideo,
                    ClientPort = new PortCouple(resultForwarder.ForwardPortVideo, resultForwarder.SourcePortCommand),
                    ServerPort = new PortCouple(resultForwarder.FromForwardVideoPort, resultForwarder.ListenCommandPort)
                };
                if ((resultForwarder is UDPForwarder && forwarder.ForwardPortCommand == 0)
                  || (resultForwarder is TCPtoUDPForwader && (resultForwarder as TCPtoUDPForwader).ForwardInterleavedCommand == 0))
                {
                    newTransport.ServerPort = null;
                }
                aMessage.Headers[RtspHeaderNames.Transport] = newTransport.ToString();
            }

            return resultForwarder;
        }
コード例 #2
0
        /// <summary>
        /// Configures the transport and forwarder.
        /// </summary>
        /// <param name="aMessage">A message.</param>
        /// <param name="forwarder">The preset forwarder.</param>
        /// <returns>The configured forwarder.</returns>
        private static Forwarder ConfigureTransportAndForwarder(RtspMessage aMessage, UDPForwarder forwarder)
        {
            RtspTransport transport = RtspTransport.Parse(aMessage.Headers[RtspHeaderNames.Transport]);

            Forwarder resultForwarder;

            if (transport.LowerTransport == RtspTransport.LowerTransportType.UDP)
            {
                if (transport.ServerPort != null)
                {
                    forwarder.SourcePortVideo    = transport.ServerPort.First;
                    forwarder.ForwardPortCommand = transport.ServerPort.Second;
                }
                resultForwarder = forwarder;
            }
            else
            {
                TCPtoUDPForwader TCPForwarder = new TCPtoUDPForwader();
                TCPForwarder.ForwardCommand            = aMessage.SourcePort;
                TCPForwarder.SourceInterleavedVideo    = transport.Interleaved.First;
                TCPForwarder.ForwardInterleavedCommand = transport.Interleaved.Second;
                // we need to transfer already getted values
                TCPForwarder.ForwardHostVideo  = forwarder.ForwardHostVideo;
                TCPForwarder.ForwardPortVideo  = forwarder.ForwardPortVideo;
                TCPForwarder.SourcePortCommand = forwarder.SourcePortCommand;
                TCPForwarder.ToMulticast       = forwarder.ToMulticast;

                resultForwarder = TCPForwarder;
            }

            if (resultForwarder.ToMulticast)
            {
                // Setup port and destination multicast.
                resultForwarder.ForwardHostVideo = CreateNextMulticastAddress();
                resultForwarder.ForwardPortVideo = forwarder.FromForwardVideoPort;

                RtspTransport newTransport = new RtspTransport()
                {
                    IsMulticast = true,
                    Destination = resultForwarder.ForwardHostVideo,
                    Port        = new PortCouple(resultForwarder.ForwardPortVideo, resultForwarder.ListenCommandPort)
                };
                if ((resultForwarder is UDPForwarder && forwarder.ForwardPortCommand == 0) ||
                    (resultForwarder is TCPtoUDPForwader && (resultForwarder as TCPtoUDPForwader).ForwardInterleavedCommand == 0))
                {
                    newTransport.Port = null;
                }
                aMessage.Headers[RtspHeaderNames.Transport] = newTransport.ToString();
            }
            else
            {
                RtspTransport newTransport = new RtspTransport()
                {
                    IsMulticast = false,
                    Destination = forwarder.ForwardHostVideo,
                    ClientPort  = new PortCouple(resultForwarder.ForwardPortVideo, resultForwarder.SourcePortCommand),
                    ServerPort  = new PortCouple(resultForwarder.FromForwardVideoPort, resultForwarder.ListenCommandPort)
                };
                if ((resultForwarder is UDPForwarder && forwarder.ForwardPortCommand == 0) ||
                    (resultForwarder is TCPtoUDPForwader && (resultForwarder as TCPtoUDPForwader).ForwardInterleavedCommand == 0))
                {
                    newTransport.ServerPort = null;
                }
                aMessage.Headers[RtspHeaderNames.Transport] = newTransport.ToString();
            }

            return(resultForwarder);
        }