How to Cast Youtube Video using Casty? about casty HOT 2 OPEN

To play Youtube video in Casty (or Google Cast v3), you will need a direct video URL - so you have to use another YouTube API -> Data API

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I've asked, check this Stackoverflow link - https://stackoverflow.com/questions/45684260/cast-video-to-tv-using-mediaroutebutton

Assume I am already familiar with YouTube API... and I have YouTube Video URL too, like this one: https://www.youtube.com/watch?v=RKjUPQCXnsM

So my main concern is. Is it possible to cast YouTube Video... if yes so do we really require play / pause button separately to play and stop video like we are doing in existing case, and is the way our youtube video url should look like:

return new MediaData.Builder("https://www.youtube.com/watch?v=RKjUPQCXnsM")

Actually, I don't have things required to test casting like Chromecast... that's why I can't test at my end...
But I shared what I am assuming... can you confirm it once...

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