I ran some test casting to a hangout wile running chrome with logging turned on and came across a line that bothers me.

I get a log line about rtx payload type not being configured: https://cs.chromium.org/chromium/src/third_party/webrtc/media/engine/webrtcvideoengine2.cc?q=webrtcvideoen+package:%5Echromium$&l=1748

The same line does not appear when go into a hangout and screenshare the "normal" way.

If rtx is indeed not configured properly, it could cause some pretty severe disruptions to a video stream.

skonig@ can you have a look or reassign to whomever knows how this is configured?