Eloi Bail authored Oct 08, 2015 and Guillaume Roguez committed Oct 15, 2015

If video_rtp_session is restarted due to bitrate changement
we need to setup again conferencepipeline. Otherwise videomixer sink
would be never attached and video never send.

Issue: #81547
Change-Id: I6de180afab5a7dd320fe3b31a1d61735106d76d1