I stumbled by accident on this extension in the JED.
With this extension I have now a seemless integration of private streaming in my joomla websites.
And I can do in a fraction of the time it usually takes to integrate my videos.
I had a support question and they reacted fast. The guy who runs it really went out of his way to help me.
If you're working with S3 cloudfront and want to protect your videos, this is the extension you need.