title: iOS 11 [MediaRemote] [AVOutputContext] WARNING: AVF context unavailable for MRAVOutputContextCreateIndependentRoutingContext
body: <p>I use video player (framework MediaPlayer) in iOS application. 
  If I rotate device to landscape orientation, video doesn't rotate to landscape.</p>
  
  <p>There is no video rotation only on iOS 11. iOS 9, 10 - rotates good.</p>
  
  <p>Before start video player and when device is rotating, XCode get message:</p>
  
  <pre><code>[MediaRemote] [AVOutputContext] WARNING: AVF context unavailable for MRAVOutputContextCreateIndependentRoutingContext
  </code></pre>
  
  <p>What to do for rotating video?</p>