Looooong time I was looking for some desktop player with a chromecast support.
But to be honest nothing I found was working properly or without errors/issues.
Until now..
With this "trick" every application in Your system becomes a chromecast support. I can say a system wide one.
Works great on my Mint 17.3 Mate x64.
More infos here:
http://www.webupd8.org/2016/03/how-to-s ... st-or.html
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Credits and big thnx for this flying out to Andrew/WebUpd8