title: MobileVLCKit player shows black screen on iOS 11
body: <p>In my project using <strong>MobileVLCKit 3.0.0</strong> for playing media.</p>
  
  <p>All types of videos successfully playing on iOS9&amp;10 but on <strong>iOS 11 video audio able to listen but the picture doesn't display and shows the black screen</strong>.</p>
  
  <p>Gives below logs: </p>
  
  <pre><code>2017-09-18 18:26:17.640065+0800 DemoPlayer[39923:369260] creating player instance using shared library
  =================================================================
  Main Thread Checker: UI API called on a background thread: -[UIView bounds]
  PID: 39923, TID: 369593, Thread name: (none), Queue name: com.apple.root.default-qos.overcommit, QoS: 21
  Backtrace:
  4   DemoPlayer                          0x0000000108349895 Open + 405
  2017-09-18 18:26:23.490963+0800 DemoPlayer[39923:369593] [reports] Main Thread Checker: UI API called on a background thread: -[UIView bounds]
  PID: 39923, TID: 369593, Thread name: (none), Queue name: com.apple.root.default-qos.overcommit, QoS: 21
  Backtrace:
  4   DemoPlayer                          0x0000000108349895 Open + 405
  =================================================================
  Main Thread Checker: UI API called on a background thread: -[UIView initWithFrame:]
  PID: 39923, TID: 369593, Thread name: (none), Queue name: com.apple.root.default-qos.overcommit, QoS: 21
  Backtrace:
  4   DemoPlayer                          0x0000000108349f3b -[VLCOpenGLES2VideoView initWithFrame:zeroCopy:voutDisplay:] + 91
  2017-09-18 18:26:23.875359+0800 DemoPlayer[39923:369593] [reports] Main Thread Checker: UI API called on a background thread: -[UIView initWithFrame:]
  PID: 39923, TID: 369593, Thread name: (none), Queue name: com.apple.root.default-qos.overcommit, QoS: 21
  Backtrace:
  4   DemoPlayer                          0x0000000108349f3b -[VLCOpenGLES2VideoView initWithFrame:zeroCopy:voutDisplay:] + 91
  2017-09-18 18:26:23.959355+0800 DemoPlayer[39923:369593] CoreAnimation: [EAGLContext renderbufferStorage:fromDrawable:] was called from a non-main thread in an implicit transaction! Note that this may be unsafe without an explicit CATransaction or a call to [CATransaction flush].
  shader program 1: WARNING: Output of vertex shader 'TexCoord1' not read by fragment shader
  WARNING: Output of vertex shader 'TexCoord2' not read by fragment shader
  </code></pre>
  
  <p>thanks in advance.</p>