source: class AspectHelperTest {
  
      @Test
      public void test16_9FitInside4_3_SameHeight() throws Exception {
  
target:         RectangleF r43 = new RectangleF(0,0,480 * AspectHelper.ar_4_3, 480);
          RectangleF r169 = AspectHelper.fitHeight(AspectHelper.RectF_16_9, r43);
          System.out.println(r43);
          System.out.println(r169);
  
          // 640x480
          // 16/9 inside 4/3
          // should be 0,-107,853,480
          Rectangle r = r169.asIntRect();
          assertEquals(-107, r.x);
          assertEquals(0, r.y);
          assertEquals(853, r.width);
          assertEquals(480, r.height);
          assertEquals(r.height, (int)r169.height);
      }
  
  }