title: Known issues for playing 3gp videos in the AVPlayer framework?
body: <p>Are there any known issues with AVPlayer not playing a 3gp file on device? mp4 files play fine, but playing a 3gp file back from a URL on the device isn't happening. </p>
  
  <p>Thanks!</p>
  
  <p>If it matters I'm on iOS 9 Swift 3. </p>