Depending on the layout, the FixedAspectSurfaceView may not be able to maintain the
* requested aspect ratio. This can happen if both the width and the height are exactly
* determined by the layout. To avoid this, ensure that either the height or the width is
* adjustable by the view; for example, by setting the layout parameters to be WRAP_CONTENT for
* the dimension that is best adjusted to maintain the aspect ratio.