A few things have happened that lead me to believe that H.264 has already won the WebRTC codec debate, regardless of what was not decided in the IETF RTCWEB or W3C WGs…
– Cisco delivers Open Source H.264 Codec via OpenH264.org
– Google and Cisco demonstrate H.264 interop in Chrome
– WebRTC Source Code for H.264 implementation surfaces in the WebRTC Developer mail list
So it looks like Chrome will end up supporting H.264 = they will support both VP8 & 264
Mozilla / Firefox already said they will support both.
Apple seems to be getting more involved, my guess is that they will announce some level of WebRTC support for Safari at WWDC. If they do, they will also favor H.264.
Since ORTC will be compatible with WebRTC to some degree, IE modern APIs group has indicated that ORTC is “under consideration”. Microsoft also seems to favor H.264.
That covers all the major browsers.
It feels like the MTI Video codec issue is a non-issue.