[Freeswitch-users] strange issue in video call

[Anthony Minessale]

There is a refactor of video going on right now for the next Beta release
this spring.  There will not be any more changes to 1.4 regarding video
support.



On Mon, Dec 22, 2014 at 12:37 PM, Stefano Sasso <stesasso at gmail.com> wrote:

> Hi guys,
>   I am encountering a strange issue in video calls.
> Please note that I cannot use proxy-media or bypass-media, because I need
> to have audio transcoding.
> (I tried with version 1.4.14 - but encountered the same problem in 1.2.x)
>
> So, in my sofia profile configuration I have as inbound-codec-prefs and
> outbound-codec-prefs the following string:
> OPUS,PCMU,PCMA,GSM,H264
> I have the late-codec-negotiation and renegotiate-codec-on-reinvite set to
> true.
> I am NOT using early audio. (just to clarify)
>
> when A starts a call in audio only mode (only m=audio in sdp), on the
> B-leg I always see also the m=video sdp part.
> So, after the call is established, if from A I start sending a video, the
> B UAC receives it.
> But, if I start sending the video from B, there is no re-invite (I think
> it's because the B UAC thinks the video channel is already up), so the
> video ends in freeswitch (A UAC never receives the video - it has only a
> m=audio channel!).
>
> If I start the call with the video from the beginning, everything works
> fine.
> I also tried to remove the H264 from the outbound-codec-prefs, but in that
> case the reinvite with the video does not work.
>
> Is there a way to fix that behaviour?
> (send the m=video in the B-leg only if present in the A-leg, and then
> accept the re-INVITEs with the m=video from A-leg or B-leg)
>
> thanks!
> bests,
>   stefano
>
> --
> Stefano Sasso
> http://stefano.dscnet.org/
>
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-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

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