     }
     
     func cameraController(cameraController: CameraController, didDetectFaces faces: Array<(id: Int, frame: CGRect)>) {
+        prepareFaceView(faces.count - faceViews.count)
+        for (idx, face) in faces.enumerate() {
+            faceViews[idx].frame = face.frame
+        }
+    }
+}
+
+private extension CameraViewController {
+    func prepareFaceView(diff : Int) {
+        //TODO:
     }
 }
 

    @IBOutlet weak var shutterButton: UIButton!
    
    var cameraController : CameraController!
    
    override func viewDidLoad() {
        super.viewDidLoad()

    }
}



