Please create a media optimizer profile for Chromecast. From what I can tell all of the current ones (Android, iOS, universal mobile, etc) all use H.264 Level 3. With the Chromecast profile ideally it would always use Level 4.0 with the High profile as all Chromecast devices should support this and yield a potentially better quality video.
Source:
The current workaround is to use Handbrake.
Hopefully this would be a low effort task by passing in some new parameters to the encoder that could give those of us using the optimizer a better quality video.
