public RtspStatusCode TearDown()
{
if ((_rtspSocket == null))
{
Connect();
}
RtspResponse response;
var request = new RtspRequest(RtspMethod.Teardown, string.Format("rtsp://{0}:{1}/stream={2}", _rtspDevice.ServerAddress, 554, _rtspStreamId), 1, 0);
request.Headers.Add("Session", _rtspSessionId);
SendRequest(request);
ReceiveResponse(out response);
if (_rtpListener != null)
{
_rtpListener.Dispose();
_rtpListener = null;
}
if (_rtcpListener != null)
{
_rtcpListener.Dispose();
_rtcpListener.PacketReceived -= new RtcpListener.PacketReceivedHandler(RtcpPacketReceived);
_rtcpListener = null;
}
StopKeepAliveThread();
return(response.StatusCode);
}
public RtspStatusCode Setup(string query, TransmissionMode transmissionmode)
{
RtspRequest request;
RtspResponse response;
if ((_rtspSocket == null))
{
Connect();
}
if (string.IsNullOrEmpty(_rtspSessionId))
{
request = new RtspRequest(RtspMethod.Setup, string.Format("rtsp://{0}:{1}/?{2}", _rtspDevice.ServerAddress, 554, query), 1, 0);
switch (transmissionmode)
{
case TransmissionMode.Multicast:
request.Headers.Add("Transport", string.Format("RTP/AVP;{0}", transmissionmode.ToString().ToLower()));
break;
case TransmissionMode.Unicast:
var activeTcpConnections = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpConnections();
var usedPorts = new HashSet <int>();
foreach (var connection in activeTcpConnections)
{
usedPorts.Add(connection.LocalEndPoint.Port);
}
for (var port = 40000; port <= 65534; port += 2)
{
if (!usedPorts.Contains(port) && !usedPorts.Contains(port + 1))
{
_rtpPort = port;
_rtcpPort = port + 1;
break;
}
}
request.Headers.Add("Transport", string.Format("RTP/AVP;{0};client_port={1}-{2}", transmissionmode.ToString().ToLower(), _rtpPort, _rtcpPort));
break;
}
}
else
{
request = new RtspRequest(RtspMethod.Setup, string.Format("rtsp://{0}:{1}/?{2}", _rtspDevice.ServerAddress, 554, query), 1, 0);
switch (transmissionmode)
{
case TransmissionMode.Multicast:
request.Headers.Add("Session", _rtspSessionId);
request.Headers.Add("Transport", string.Format("RTP/AVP;{0}", transmissionmode.ToString().ToLower()));
break;
case TransmissionMode.Unicast:
request.Headers.Add("Session", _rtspSessionId);
request.Headers.Add("Transport", string.Format("RTP/AVP;{0};client_port={1}-{2}", transmissionmode.ToString().ToLower(), _rtpPort, _rtcpPort));
break;
}
}
SendRequest(request);
ReceiveResponse(out response);
if (response.StatusCode == RtspStatusCode.Ok)
{
if (!response.Headers.TryGetValue("com.ses.streamID", out _rtspStreamId))
{
Logger.Error(string.Format("Failed to tune, not able to locate Stream ID header in RTSP SETUP response"));
}
string sessionHeader;
if (!response.Headers.TryGetValue("Session", out sessionHeader))
{
Logger.Error(string.Format("Failed to tune, not able to locate Session header in RTSP SETUP response"));
}
ProcessSessionHeader(sessionHeader, "Setup");
string transportHeader;
if (!response.Headers.TryGetValue("Transport", out transportHeader))
{
Logger.Error(string.Format("Failed to tune, not able to locate Transport header in RTSP SETUP response"));
}
ProcessTransportHeader(transportHeader);
StartKeepAliveThread();
_rtpListener = new RtpListener(Destination, RtpPort, transmissionmode);
_rtpListener.StartRtpListenerThread();
_rtcpListener = new RtcpListener(Destination, RtcpPort, transmissionmode);
_rtcpListener.PacketReceived += new RtcpListener.PacketReceivedHandler(RtcpPacketReceived);
_rtcpListener.StartRtcpListenerThread();
}
return(response.StatusCode);
}