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I am trying to create a WebRtc stream using Kurento Media Server and a hardware video encoder.

The video source is coming from Haivision Makito DVI. Makito is a hardware encoder which captures a FHD display using DVI cable, compresses using h.264 codec and streams in number of protocols options (TS over UDP, TS over RTP, Direct RTP, Quicktime, RTMP).

  • So far I have managed to play a RTSP stream from vlc to Kurento I have implemented a RtpEndpoint -> WebRtc example which is published in this repository. (This proves Kurento works)

  • The encoder's sdp can be accessed here - SDP.

  • At first Kurento had crashed and throw an error saying "Could not join Multicast group: No such Device" which I solved using this post.

  • Now, my server side and client side are working and communicating perfectly but no video can be seen. Currently I don't have a clue what is the problem.

  • This is the SDP answer generated by Kurento after using rtpEndpoint.processOffer():

`

v = 0
o =- 3718280759 3718280759 IN IP4 192.168.6.20
s = Kurento Media Server
c = IN IP4 192.168.6.20
t = 0 0
m = video 58116 RTP/AVP 96
a = fmtp: 96 packetisation-mode=1; sprop=parameter-sets=Z0IAKYxoB4ifl/8AAQABEAAAAMAQAAADyEAAAAAAA=,aM48gAAAAA=
a = ssrc:3106833799 cname:user3165393302@host-52028916
m = audio 34338 RTP/AVP
a = ssrc:396556932 cname:user3165393302@host-52028916
  • Which of the above protocols does Kurento currently support?
  • Do I place some commands in the wrong order?
  • What am I doing wrong?

Please help,

Thanks

Matan Givoni
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1 Answers1

1

The problem was that Makito transmits video to a predefined fixed udp port.

To solved it I am extracting the udp port from the sdp answer generated by Kurento and configuring Makito's destination udp port at runtime using a simple script.

Matan Givoni
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