Merge "ImageFormat: Document units/coordinate system for DEPTH_POINT_CLOUD"...

     *    float confidence = floatDepthBuffer.get();

     * </pre>

     *

     * For camera devices that support the

     * {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT DEPTH_OUTPUT}

     * capability, DEPTH_POINT_CLOUD coordinates have units of meters, and the coordinate system is

     * defined by the camera's pose transforms:

     * {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_TRANSLATION} and

     * {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_ROTATION}. That means the origin is

     * the optical center of the camera device, and the positive Z axis points along the camera's optical axis,

     * toward the scene.

     */

    public static final int DEPTH_POINT_CLOUD = 0x101;