title: ARCore : Get Camera's resolution
body: <p>Is there any way to get camera's resolution ? (unless using Android from scratch)
  I did not found any getter, on a setter on session.setDisplayGeometry() that is not really what I expect.</p>
  
  <p>My goal is to know the camera's picture ratio to cropp it on my display since the screen and the camera do not use the same size.</p>
  
  <p>Thanks.</p>