[Freeswitch-users] Improving mod_conference for H.264 video // bounty?

Roland Hänel roland at haenel.me
Thu Jan 12 23:48:17 MSK 2012


Dear all,

We're looking for a way to improve the user experience with FreeSwitch's
mod_conference when video (H.264) is involved. After some investigation in
mod_26x's source code it seems that the creator actually had the idea to
switch video (based on who has the floor) only on H.26x keyframes, but this
was not fully implemented (i.e. it doesn't really work well).

Maybe someone from the FreeSwitch guys could advise me about the way how to
put up a bounty for improvements in this area.

I found some boundy lists in the wiki, other things in Jira, and I'm not
sure where to post my whishes (and maybe also a hint what amount of $'s
seems appropriate here).

Basically, that's what we need:
   - switch video source only on H.264 keyframes to avoid artifacts when
the stream switches to a new floor member
   - feature to throttle floor changes in conference (i.e. floor is only
changed after some time of activity, to prevent very frequent video stream
changes)
   - investigation whether the codec parameter negotiation can be
influenced/improved for H.264 passthru, e.g. to allow for specific profiles
in SDP a=fmtp parameters

Greetings,
Roland
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