Chromecast allows us to redirect Flash video streams from the browser to the TV? Does this mean the Chromecast device itself contains a Flash player? Or is Google translating the video on a server somewhere into HTML5 video?
What's the best way to determine this?
Chromecast does not contain flash. Many flash players use MP4 or other common video formats that Chromecast supports. Those who redirect Flash to Chromecast, call out from Flash to the Chromecast JavaScript API, and pass enough information for the Chromecast receiver to load the content.