Merge pull request #3102

initramfs (1):
      refactor(video): simplifies retrieval of primary screen

src/video/cameradevice.cpp

@@ -133,7 +133,7 @@ CameraDevice* CameraDevice::open(QString devName, VideoMode mode)
         }
         else
         {
-            QScreen* defaultScreen = static_cast<QGuiApplication*>(QGuiApplication::instance())->primaryScreen();
+            QScreen* defaultScreen = QApplication::primaryScreen();
             qreal pixRatio;
 
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))