title: How to mirror a rear camera preview?
body: <p>I was trying to get the preview of the rear camera mirrored... I mean the preview should mirror images vertically; it should swap right-to-left like the front camera...
  I don't need the normal preview i need th image like if it's seen from the front camera and i'm trying the SurfaceTexture.
  Is there someone who knows anything about it?
  Any type of help is appreciated!</p>