iOS Video-App: Can't determine AirPlay status

We're developing several Video-Apps which are also in the iOS App Store. Video rendering is done in StageVideo wich obviously respects the iOS System AirPlay settings. This feature is awesome and works like a charm but ... we can't figure the AirPlay status and this is a problem for us.

What happens is the following:

• Users activate AirPlay e.g. inside Spotify to hear their music on the stereo.
• Then they forget about it.
• Then they open our app (but TV/stereo is turned off)
• Result is a fully functional app without video display because the video stream is on AirPlay
• Then we're getting "video doesn't work" comments in the appstore

Is there any way to figure out (or even set) the system AirPlay status so we can at least show a message to the user saying "Your System is on AirPlay. Please turn on your TV to see the video?

Thank you very much!

Nikolai