19 May
2020
19 May
'20
8:46 a.m.
Hello,
what are the differences in building the SDP for the two types (plan-b
vs unified-plan)? Can you (someone else) summarize? it will be useful to
see what can be done for sdpops module.
On the other hand, rtpengine gets full SDP body from Kamailio and
returns the new full SDP back, so here I do not think Kamailio's RTP
engine needs update, maybe new flags to control if the change should be
done or not (e.g., between two webrtc endpoints, one with old format and
the other with the new format).
Cheers,
Daniel
On 17.05.20 06:31, M S wrote:
Hi,
Since Chrome M72, the default format of SDP generated by Chrome's
WebRTC stack has been changed to "unified-plan" instead of Google's
old "plan-b" format, which has no been deprecated and planned to be
removed sometime in mid 2020. Here are more details about it.
https://webrtc.org/getting-started/unified-plan-transition-guide
This poses a big problem for non-web WebRTC clients, servers and
proxies (such as RTPEngine) which will stop working as soon as Google
Chrome removes support for legacy "plan-b" SDP format.
In kmaialio's RTPEngine module, so far I have seen no support for this
new "unified-plan" SDP format.
Are there any support planed for future?
Meanwhile, if there any way to add support for it in Kamailio via SDP
manipulation e.g. SDPOPS module etc.
Thank you.
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