Merge "Merge remote-tracking branch 'origin/stable' into dev" into refs/staging/dev

src/multimedia/camera/qcamerainfo.cpp

@@ -104,7 +104,7 @@ QCameraInfo::QCameraInfo(const QCamera &camera)
     : d(new QCameraInfoPrivate)
 {
     const QVideoDeviceSelectorControl *deviceControl = camera.d_func()->deviceControl;
-    if (deviceControl) {
+    if (deviceControl && deviceControl->deviceCount() > 0) {
         const int selectedDevice = deviceControl->selectedDevice();
         d->deviceName = deviceControl->deviceName(selectedDevice);
         d->description = deviceControl->deviceDescription(selectedDevice);

src/multimedia/gsttools_headers/qgstutils_p.h

@@ -78,6 +78,8 @@ namespace QGstUtils {
                                              const QSet<QString> &supportedMimeTypeSet);
 }
 
+void qt_gst_object_ref_sink(gpointer object);
+
 QT_END_NAMESPACE
 
 #endif