Can I use the self-hosted player with adaptive video?
I must use the self-hosted player (because I am building a page that implements Player.js)
As far as I can tell, in the setup, 'file' must be a video file.
I would like to use that self-hosted player to play content I uploaded on jwplayer.com
Do I have to link to a specific source (under Sources in my content's details), or is there a way to dynamically choose the most appropriate size?