private bool HandleRTSPResponse200Options(RtspProtocol rtspProtocol, Variant requestHeaders, ref string requestContent, Variant responseHeaders, ref string responseContent)
{
if (rtspProtocol.HasConnectivity) return true;
if (rtspProtocol.CustomParameters["connectionType"] == null)
{
FATAL("Bogus connection");
rtspProtocol.EnqueueForDelete();
return false;
}
//1. Sanitize
if (responseHeaders[RTSP_HEADERS, RTSP_HEADERS_PUBLIC] == null)
{
FATAL("Invalid response:\n{0}", (responseHeaders.ToString()));
return false;
}
//2. get the raw options
string raw = responseHeaders[RTSP_HEADERS, RTSP_HEADERS_PUBLIC];
//3. split and normalize the options
var parts = raw.Split(',').Select(x => x.Split(':')).ToDictionary(x => x[0], x => x[1]);
string url = requestHeaders[RTSP_FIRST_LINE, RTSP_URL];
switch ((string)rtspProtocol.CustomParameters["connectionType"])
{
case "pull":
//4. Test the presence of the wanted methods
if (!parts.ContainsKey(RTSP_METHOD_DESCRIBE) || !parts.ContainsKey(RTSP_METHOD_SETUP) ||
!parts.ContainsKey(RTSP_METHOD_PLAY))
{
FATAL("Some of the supported methods are missing: {0}", (raw));
return false;
}
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_DESCRIBE, url, RTSP_VERSION_1_0);
rtspProtocol.PushRequestHeader(RTSP_HEADERS_ACCEPT, RTSP_HEADERS_ACCEPT_APPLICATIONSDP);
return rtspProtocol.SendRequestMessage();
case "push":
//4. Test the presence of the wanted methods
if (!parts.ContainsKey(RTSP_METHOD_ANNOUNCE) || !parts.ContainsKey(RTSP_METHOD_SETUP) ||
!parts.ContainsKey(RTSP_METHOD_RECORD))
{
FATAL("Some of the supported methods are missing: {0}", (raw));
return false;
}
var parameters = rtspProtocol.CustomParameters;
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_ANNOUNCE,url,RTSP_VERSION_1_0);
var sdp = ComputeSDP(rtspProtocol,
parameters["customParameters","localStreamConfig","localStreamName"],
parameters["customParameters","localStreamConfig","targetStreamName"],
parameters["customParameters","localStreamConfig","targetUri","host"]);
if (sdp == "")
{
FATAL("Unable to compute sdp");
return false;
}
rtspProtocol.PushRequestHeader(RTSP_HEADERS_CONTENT_TYPE, RTSP_HEADERS_ACCEPT_APPLICATIONSDP);
rtspProtocol.PushRequestContent(sdp,false);
return rtspProtocol.SendRequestMessage();
default:
FATAL("Bogus connection");
rtspProtocol.EnqueueForDelete();
return false;
}
}
private bool HandleRTSPResponse200Setup(RtspProtocol rtspProtocol, Variant requestHeaders, ref string requestContent, Variant responseHeaders, ref string responseContent)
{
if (rtspProtocol.CustomParameters["connectionType"] == "pull")
{
if (responseHeaders[RTSP_FIRST_LINE, RTSP_STATUS_CODE] != 200)
{
FATAL("request {0} failed with response {1}",
(requestHeaders.ToString()),
(responseHeaders.ToString()));
return false;
}
if (rtspProtocol.CustomParameters["pendingTracks"].ArrayLength != 0)
return SendSetupTrackMessages(rtspProtocol);
//2. Do the play command
var uri = rtspProtocol.CustomParameters["uri", "fullUri"];
//3. prepare the play command
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_PLAY, uri, RTSP_VERSION_1_0);
return rtspProtocol.SendRequestMessage();
}
else
{
if (responseHeaders[RTSP_HEADERS, RTSP_HEADERS_TRANSPORT] == null)
{
FATAL("RTSP {0} request doesn't have {1} header line",
RTSP_METHOD_SETUP,
RTSP_HEADERS_TRANSPORT);
return false;
}
//3. get the transport header line
var raw = responseHeaders[RTSP_HEADERS, RTSP_HEADERS_TRANSPORT];
var transport = Variant.Get();
if (!SDP.ParseTransportLine(raw, transport))
{
FATAL("Unable to parse transport line {0}", (raw));
return false;
}
bool forceTcp;
if (transport["server_port"] != null &&
(transport["rtp/avp/udp"] != null || transport["rtp/avp"] != null))
{
forceTcp = false;
}else if (transport["interleaved"] != null && transport["rtp/avp/tcp"] != null)
{
forceTcp = true;
}
else
{
FATAL("Invalid transport line: {0}", (transport.ToString()));
return false;
}
if (forceTcp != (bool)rtspProtocol.CustomParameters["forceTcp"])
{
FATAL("Invalid transport line: {0}", (transport.ToString()));
return false;
}
var pConnectivity = GetOutboundConnectivity(rtspProtocol, forceTcp);
if (pConnectivity == null)
{
FATAL("Unable to get outbound connectivity");
return false;
}
var param = rtspProtocol.CustomParameters;
param[param["lastSetup"] == "audio" ? "audioTransport" : "videoTransport"] = transport;
var variantUri = param["uri"];
string trackId = "";
bool isAudio = false;
if (param["audioTrackId"] != null)
{
trackId = param["audioTrackId"];
param["audioTrackId"] = null;
param["lastSetup"] = "audio";
isAudio = true;
pConnectivity.HasAudio = true;
}
else
{
if (param["videoTrackId"] != null)
{
trackId = param["videoTrackId"];
param["videoTrackId"] = null;
param["lastSetup"] = "video";
pConnectivity.HasVideo = true;
}
}
if (trackId != "")
{
var uri = variantUri["fullUri"] + "/trackID=" + trackId;
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_SETUP, uri, RTSP_VERSION_1_0);
transport = forceTcp ? $"RTP/AVP/TCP;unicast;interleaved={(isAudio ? pConnectivity.AudioChannels : pConnectivity.VideoChannels)};mode=record" : $"RTP/AVP;unicast;client_port={(isAudio ? pConnectivity.AudioChannels : pConnectivity.VideoChannels)};mode=record";
rtspProtocol.PushRequestHeader(RTSP_HEADERS_TRANSPORT, transport);
return rtspProtocol.SendRequestMessage();
}
else
{
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_RECORD,variantUri["fullUri"],RTSP_VERSION_1_0);
return rtspProtocol.SendRequestMessage();
}
}
}
private bool SendSetupTrackMessages(RtspProtocol rtspProtocol)
{
//1. Get the pending tracks
if (rtspProtocol.CustomParameters["pendingTracks"].ArrayLength == 0)
{
WARN("No more tracks");
return true;
}
//2. Get the inbound connectivity
if (rtspProtocol.InboundConnectivity == null)
{
FATAL("Unable to get inbound connectivity");
return false;
}
//3. Get the first pending track
var track = rtspProtocol.CustomParameters["pendingTracks"][0];
if (!track.IsMap)
{
FATAL("Invalid track");
return false;
}
//4. Add the track to the inbound connectivity
if (!rtspProtocol.InboundConnectivity.AddTrack(track,track["isAudio"]))
{
FATAL("Unable to add the track to inbound connectivity");
return false;
}
//6. Prepare the SETUP request
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_SETUP,
track["controlUri"], RTSP_VERSION_1_0);
rtspProtocol.PushRequestHeader(RTSP_HEADERS_TRANSPORT, rtspProtocol.InboundConnectivity.GetTransportHeaderLine(track["isAudio"], true));
//7. Remove the track from pending
rtspProtocol.CustomParameters["pendingTracks"].RemoveAt(0);
//8. Send the request message
return rtspProtocol.SendRequestMessage();
}
private bool HandleRTSPResponse200Announce(RtspProtocol rtspProtocol, Variant requestHeaders, ref string requestContent, Variant responseHeaders, ref string responseContent)
{
bool forceTcp = rtspProtocol.CustomParameters["forceTcp"];
//3. Get the outbound connectivity
var pConnectivity = GetOutboundConnectivity(rtspProtocol,forceTcp);
if (pConnectivity == null)
{
FATAL("Unable to get the outbound connectivity");
return false;
}
var param = rtspProtocol.CustomParameters;
string trackId = "";
bool isAudio = false;
if (param["audioTrackId"] != null)
{
trackId = param["audioTrackId"];
param["audioTrackId"] = null;
param["lastSetup"] = "audio";
isAudio = true;
pConnectivity.HasAudio = true;
}
else
{
if (param["videoTrackId"] != null)
{
trackId = param["videoTrackId"];
param["videoTrackId"] = null;
param["lastSetup"] = "video";
pConnectivity.HasVideo = true;
}
}
if (trackId != "")
{
var variantUri = param["uri"];
var uri = variantUri["fullUri"] + "/trackID=" + trackId;
rtspProtocol.PushRequestFirstLine(RTSP_METHOD_SETUP, uri, RTSP_VERSION_1_0);
var transport = forceTcp ? $"RTP/AVP/TCP;unicast;interleaved={(isAudio ? pConnectivity.AudioChannels : pConnectivity.VideoChannels)};mode=record" : $"RTP/AVP;unicast;client_port={(isAudio ? pConnectivity.AudioChannels : pConnectivity.VideoChannels)};mode=record";
rtspProtocol.PushRequestHeader(RTSP_HEADERS_TRANSPORT, transport);
return rtspProtocol.SendRequestMessage();
}
else
{
FATAL("Bogus RTSP connection");
rtspProtocol.EnqueueForDelete();
return false;
}
}