Merge "Camera: Fix minor NDK doc formatting error" into rvc-dev am: 94ba1a76 am: 28ed3f5f

     * <p>By using this control, the application gains a simpler way to control zoom, which can

     * be a combination of optical and digital zoom. For example, a multi-camera system may

     * contain more than one lens with different focal lengths, and the user can use optical

     * zoom by switching between lenses. Using zoomRatio has benefits in the scenarios below:

     * <em> Zooming in from a wide-angle lens to a telephoto lens: A floating-point ratio provides

     *   better precision compared to an integer value of ACAMERA_SCALER_CROP_REGION.

     * </em> Zooming out from a wide lens to an ultrawide lens: zoomRatio supports zoom-out whereas

     *   ACAMERA_SCALER_CROP_REGION doesn't.</p>

     * zoom by switching between lenses. Using zoomRatio has benefits in the scenarios below:</p>

     * <ul>

     * <li>Zooming in from a wide-angle lens to a telephoto lens: A floating-point ratio provides

     *   better precision compared to an integer value of ACAMERA_SCALER_CROP_REGION.</li>

     * <li>Zooming out from a wide lens to an ultrawide lens: zoomRatio supports zoom-out whereas

     *   ACAMERA_SCALER_CROP_REGION doesn't.</li>

     * </ul>

     * <p>To illustrate, here are several scenarios of different zoom ratios, crop regions,

     * and output streams, for a hypothetical camera device with an active array of size

     * <code>(2000,1500)</code>.</p>