public bool InitializePorts(out Socket socket,out int port,ref NATTraversalProtocol ppNATData,out Socket rtcp,out int rtcpPort,ref NATTraversalProtocol ppNATRTCP)
{
UDPCarrier carrier1 = null;
UDPCarrier carrier2 = null;
for (int i = 0; i < 10; i++)
{
if (carrier1 != null)
{
carrier1.Dispose();
carrier1 = null;
}
if (carrier2 != null)
{
carrier2.Dispose();
carrier2 = null;
}
carrier1 = UDPCarrier.Create("0.0.0.0", 0);
if (carrier1 == null)
{
WARN("Unable to create UDP carrier for RTP");
continue;
}
carrier2 = (carrier1.NearPort % 2) == 0 ? UDPCarrier.Create("0.0.0.0", carrier1.NearPort + 1) : UDPCarrier.Create("0.0.0.0", carrier1.NearPort - 1);
if (carrier2 == null)
{
WARN("Unable to create UDP carrier for RTCP");
continue;
}
if (carrier1.NearPort > carrier2.NearPort)
{
WARN("Switch carriers");
UDPCarrier pTemp = carrier1;
carrier1 = carrier2;
carrier2 = pTemp;
}
Variant dummy = Variant.Get();
socket = carrier1.Socket;
port = carrier1.NearPort;
ppNATData = (NATTraversalProtocol)ProtocolFactoryManager.CreateProtocolChain(Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL, dummy);
if (ppNATData == null)
{
rtcp = null;
rtcpPort = 0;
FATAL("Unable to create the protocol chain {0}", Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL);
return false;
}
carrier1.Protocol = ppNATData.FarEndpoint;
ppNATData.FarEndpoint.IOHandler = carrier1;
rtcp = carrier2.Socket;
rtcpPort = carrier2.NearPort;
ppNATRTCP = (NATTraversalProtocol)ProtocolFactoryManager.CreateProtocolChain(Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL, dummy);
if (ppNATRTCP == null)
{
FATAL("Unable to create the protocol chain {0}", Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL);
ppNATData.EnqueueForDelete();
return false;
}
carrier2.Protocol = ppNATRTCP.FarEndpoint;
ppNATRTCP.FarEndpoint.IOHandler = carrier2;
return true;
}
if (carrier1 != null)
{
carrier1.Dispose();
carrier1 = null;
}
if (carrier2 != null)
{
carrier2.Dispose();
carrier2 = null;
}
socket = null;
port = 0;
rtcp = null;
rtcpPort = 0;
return false;
}
public bool InitializePorts(out Socket socket, out int port, ref NATTraversalProtocol ppNATData, out Socket rtcp, out int rtcpPort, ref NATTraversalProtocol ppNATRTCP)
{
UDPCarrier carrier1 = null;
UDPCarrier carrier2 = null;
for (int i = 0; i < 10; i++)
{
if (carrier1 != null)
{
carrier1.Dispose();
carrier1 = null;
}
if (carrier2 != null)
{
carrier2.Dispose();
carrier2 = null;
}
carrier1 = UDPCarrier.Create("0.0.0.0", 0);
if (carrier1 == null)
{
WARN("Unable to create UDP carrier for RTP");
continue;
}
carrier2 = (carrier1.NearPort % 2) == 0 ? UDPCarrier.Create("0.0.0.0", carrier1.NearPort + 1) : UDPCarrier.Create("0.0.0.0", carrier1.NearPort - 1);
if (carrier2 == null)
{
WARN("Unable to create UDP carrier for RTCP");
continue;
}
if (carrier1.NearPort > carrier2.NearPort)
{
WARN("Switch carriers");
UDPCarrier pTemp = carrier1;
carrier1 = carrier2;
carrier2 = pTemp;
}
Variant dummy = Variant.Get();
socket = carrier1.Socket;
port = carrier1.NearPort;
ppNATData = (NATTraversalProtocol)ProtocolFactoryManager.CreateProtocolChain(Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL, dummy);
if (ppNATData == null)
{
rtcp = null;
rtcpPort = 0;
FATAL("Unable to create the protocol chain {0}", Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL);
return(false);
}
carrier1.Protocol = ppNATData.FarEndpoint;
ppNATData.FarEndpoint.IOHandler = carrier1;
rtcp = carrier2.Socket;
rtcpPort = carrier2.NearPort;
ppNATRTCP = (NATTraversalProtocol)ProtocolFactoryManager.CreateProtocolChain(Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL, dummy);
if (ppNATRTCP == null)
{
FATAL("Unable to create the protocol chain {0}", Defines.CONF_PROTOCOL_RTP_NAT_TRAVERSAL);
ppNATData.EnqueueForDelete();
return(false);
}
carrier2.Protocol = ppNATRTCP.FarEndpoint;
ppNATRTCP.FarEndpoint.IOHandler = carrier2;
return(true);
}
if (carrier1 != null)
{
carrier1.Dispose();
carrier1 = null;
}
if (carrier2 != null)
{
carrier2.Dispose();
carrier2 = null;
}
socket = null;
port = 0;
rtcp = null;
rtcpPort = 0;
return(false);
}
