Hi,
We are trying to analyze a problem with a RTCPeerConnection between
Firefox 44.0 and a Cisco 8520 MCU (connected via the Janus WebRTC
Gateway (https://github.com/meetecho/janus-gateway)). Unfortunately,
we've got stuck. :(
Problem description: The remote SDP gets accepted by Firefox, but no
video is playing.
local SDP:
[...]
a=fmtp:126
profile-level-id=42e01f;level-asymmetry-allowed=1;packetization-mode=1
a=fmtp:97 profile-level-id=42e01f;level-asymmetry-allowed=1
[...]
remote SDP:
[...]
a=fmtp:97
profile-level-id=420016;level-asymmetry-allowed=0;max-mbps=108000;max-fs=3840;max-dpb=5408
a=fmtp:126
profile-level-id=420016;level-asymmetry-allowed=0;packetization-mode=1;max-mbps=108000;max-fs=3840;max-dpb=5408
[...]
Although the remote SDP gets accepted by RTCSessionDescription(), there
is no remote video playing in Firefox. We could not find any error hint.
We have prepared a test case:
1. open https://janus.bfs.de/
2. select "Cisco MCU"
3. select "Connect"
In contrast to that a RTCPeerConnection between Firefox and an
OpenMCU-ru installation works flawlessly (same gateway, same JavaScript
code):
1. open https://janus.bfs.de/
2. select "Open MCU"
3. select "Connect"
We have worked hard on this problem for several days now, but we could
not figure out what is going wrong. We would really appreciate your
advice, how to track down and fix this problem.
Many thanks in advance and best regards,
Christian
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