Unsupported Transport Type

[rossbuggins]

I'm running the Streaming video display demo and trying to connect to a locally hosted RSTP server. I'm using VLC as the server with:

VLC "MyFile.mp4" --sout=#transcode{vcodec=h264,scale=Auto,acodec=mp4a,ab=128,channels=2,samplerate=44100,scodec=none}:rtp{sdp=rtsp://MYLOCALIP:8996/go.mpg} :no-sout-all :sout-keep

However, I keep getting Bad Response Code: UnsupportedTransport

I'm using TCP in the settings in the demo code, as VLC only runs as a server in TCP transport type.

Another instance of VLC can connect to the RTSP stream ok.

Debugging, its at the point it sends a request message when setting up a channel of :

{SETUP rtsp://MYIP:8996/go.mpg/trackID=1 RTSP/1.0 CSeq: 3 User-Agent: RtspClientSharp Transport: RTP/AVP/TCP;unicast;interleaved=0-1

}

And the response is:

{RTSP/1.0 461 UnsupportedTransport CSeq: 3 SERVER: VLC/3.0.6 DATE: Mon, 21 Oct 2019 19:38:34 GMT CONTENT-LENGTH: 0 CACHE-CONTROL: no-cache CSEQ: 3 }

[RandDruid]

By default VLC uses UDP transport for RTP. In theory there is an option to configure RTP protocol to TCP, but I can't make it work.

--sout-rtp-proto={dccp,sctp,tcp,udp,udplite} 
                                 Transport protocol
          This selects which transport protocol to use for RTP.

[rossbuggins]

on https://wiki.videolan.org/Documentation:Streaming_HowTo/Advanced_Streaming_Using_the_Command_Line/ it states

tcp, accept TCP connections at the specified IP address (dst=) and use RFC 4571 RTP framing, not implemented yet,

Can RtspClientSharp not deal with UDP for the RTP then?

[RandDruid]

It can, but you should set RtpTransport to UDP. RTSP is always TCP. With UDP transport RtspClientSharp will send different SETUP message and VLC will accept it.

[rossbuggins]

Ok I’ll look again with it set to udp and trace through what goes on. Thanks