NewTOAPIA.Net.Rtp.RtpSession.AddOrUpdateStream C# (CSharp) Method

        private void AddOrUpdateStream(uint ssrc, SdesData sdes)
        {
            lock(participants)
            {
                lock(streamsAndIPs)
                {
                    RtpParticipant participant = participants[sdes.CName];
                    if(participants[sdes.CName] == null)
                    {
                        Debug.Assert(false);
                        throw new InvalidOperationException(Strings.CantCreateAStreamNoParticipant);
                    }

                    IPStreamPair ipsp = streamsAndIPs[ssrc];
                    Debug.Assert(ipsp != null);

                    if(ipsp.stream == null)
                    {
                        ipsp.stream = RtpStream.CreateStream(rtpListener, ssrc, sdes);

                        ssrcToParticipant[ssrc] = participant;
                        participant.AddSSRC(ssrc);

                        RaiseRtpStreamAddedEvent(ipsp.stream);
                    }
                    else // Update
                    {
                        ipsp.stream.Stale = 0;
                        ipsp.stream.Properties.UpdateData(sdes);
                    }
                }
            }
        }