/// <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;
}
/// <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);
}