We are currently developing an iOS and Android application that will replace NewSpring's current apps. The current app supports video playback on a Chromecast, but we have not added that feature to the new app yet. We use Ooyala for our video streaming. Their new HTML5 player has support for Chromecasting, so their examples are hopefully good.
The way Chromecasting works is like this:
- Client finds Chromecast on network
- Client sends request to stream to Chromecast with registered ID