title: how to view normal video in cardboard like youtube
body: <p>I have an app that plays normal and <code>VR</code> videos. My app has two players to play both types. In my <code>VrVideoView</code> there is a button that makes video play in <strong>stereo mode</strong>. </p>
  
  <p>My question is: how can I view normal videos in <code>Cardboard</code> just like the <code>YouTube</code> app?</p>