Using external players like FLV, JW?

It’s quite possible to use different kinds of players. You will then have to use the Streamio API.
Use information in the JSON link, which you find by clicking on the desired video in the Video Library. Then click on Advanced to get the API Links.
More about the Streamio API on https://streamio.com/developers.

Is it possible to use Streamio with alternative players like JW Player, FLV Player or do I have to use the one provided in the Streamio backend?