I've started building P2P live adaptive (DASH) live video streaming using WebRTC with distributed rate control mechanism some time ago and I am planning to open source it. Basically using that you could build your own p2p global distributed live adaptive video streaming CDN (or use it on one server only). Adding new supporting server (to add additional bandwidth) in this solution is just as easy as spawning vm/server and launch binary. Distributed signaling server with GEO/region based peer distribution, full real time statistics on whole network health, analytics, network automatically adapts to bandwidth shortage (if for some reason network can't sustain itself) switching to lower bandwidth versions of the stream. Very easy to use, you would need to set one config file only, launch 2 binaries and add one JS file to source of your site and you are ready to go.

Anyone interested in this?