diff --git a/ext/directfb/dfbvideosink.c b/ext/directfb/dfbvideosink.c
index dfe49c3d54..bafe4bade5 100644
--- a/ext/directfb/dfbvideosink.c
+++ b/ext/directfb/dfbvideosink.c
@@ -1744,7 +1744,9 @@ gst_dfbvideosink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
 {
   GstDfbVideoSink *dfbvideosink = NULL;
   DFBResult res;
-  GstVideoRectangle dst, src, result;
+  GstVideoRectangle dst = { 0, };
+  GstVideoRectangle src = { 0, };
+  GstVideoRectangle result;
   GstFlowReturn ret = GST_FLOW_OK;
   gboolean mem_cpy = TRUE;
   GstMetaDfbSurface *meta;
@@ -1975,7 +1977,9 @@ gst_dfbvideosink_navigation_send_event (GstNavigation * navigation,
 {
   GstDfbVideoSink *dfbvideosink = GST_DFBVIDEOSINK (navigation);
   GstEvent *event;
-  GstVideoRectangle src, dst, result;
+  GstVideoRectangle dst = { 0, };
+  GstVideoRectangle src = { 0, };
+  GstVideoRectangle result;
   double x, y, old_x, old_y;
   GstPad *pad = NULL;
 
diff --git a/ext/sdl/sdlvideosink.c b/ext/sdl/sdlvideosink.c
index 5c1217f877..7f05dcad83 100644
--- a/ext/sdl/sdlvideosink.c
+++ b/ext/sdl/sdlvideosink.c
@@ -944,7 +944,9 @@ gst_sdlvideosink_navigation_send_event (GstNavigation * navigation,
 {
   GstSDLVideoSink *sdlvideosink = GST_SDLVIDEOSINK (navigation);
   GstEvent *event;
-  GstVideoRectangle src, dst, result;
+  GstVideoRectangle dst = { 0, };
+  GstVideoRectangle src = { 0, };
+  GstVideoRectangle result;
   double x, y, old_x, old_y;
   GstPad *pad = NULL;
 
diff --git a/ext/wayland/wlwindow.c b/ext/wayland/wlwindow.c
index ab7eddabb1..a964335f5f 100644
--- a/ext/wayland/wlwindow.c
+++ b/ext/wayland/wlwindow.c
@@ -237,7 +237,8 @@ gst_wl_window_is_toplevel (GstWlWindow * window)
 static void
 gst_wl_window_resize_video_surface (GstWlWindow * window, gboolean commit)
 {
-  GstVideoRectangle src, res;
+  GstVideoRectangle src = { 0, };
+  GstVideoRectangle res;
 
   /* center the video_subsurface inside area_subsurface */
   src.w = window->video_width;
@@ -256,7 +257,8 @@ gst_wl_window_resize_video_surface (GstWlWindow * window, gboolean commit)
     struct wl_region *region;
 
     region = wl_compositor_create_region (window->display->compositor);
-    wl_region_add(region, 0, 0, window->render_rectangle.w, window->render_rectangle.h);
+    wl_region_add (region, 0, 0, window->render_rectangle.w,
+        window->render_rectangle.h);
     wl_surface_set_input_region (window->area_surface, region);
     wl_region_destroy (region);
   }
diff --git a/sys/directdraw/gstdirectdrawsink.c b/sys/directdraw/gstdirectdrawsink.c
index 811d812db2..99140f2125 100644
--- a/sys/directdraw/gstdirectdrawsink.c
+++ b/sys/directdraw/gstdirectdrawsink.c
@@ -92,7 +92,8 @@ static gboolean gst_ddrawvideosink_get_format_from_caps (GstDirectDrawSink *
 static void gst_directdraw_sink_center_rect (GstDirectDrawSink * ddrawsink,
     RECT src, RECT dst, RECT * result);
 static const char *DDErrorString (HRESULT hr);
-static long FAR PASCAL WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
+static long FAR PASCAL WndProc (HWND hWnd, UINT message, WPARAM wParam,
+    LPARAM lParam);
 
 /* surfaces management functions */
 static void gst_directdraw_sink_surface_destroy (GstDirectDrawSink * ddrawsink,
@@ -209,9 +210,11 @@ gst_directdraw_sink_navigation_send_event (GstNavigation * navigation,
 {
   GstDirectDrawSink *ddrawsink = GST_DIRECTDRAW_SINK (navigation);
   GstEvent *event;
-  GstVideoRectangle src, dst, result;
+  GstVideoRectangle src = { 0, };
+  GstVideoRectangle dst = { 0, };
+  GstVideoRectangle result;
   RECT rect;
-  gdouble x, y, old_x, old_y, xscale = 1.0, yscale=1.0;
+  gdouble x, y, old_x, old_y, xscale = 1.0, yscale = 1.0;
   GstPad *pad = NULL;
 
   src.w = GST_VIDEO_SINK_WIDTH (ddrawsink);
@@ -519,7 +522,7 @@ gst_directdraw_sink_init (GstDirectDrawSink * ddrawsink,
   ddrawsink->video_window = NULL;
   ddrawsink->our_video_window = TRUE;
   ddrawsink->previous_wndproc = NULL;
-  ddrawsink->previous_user_data = (LONG_PTR)NULL;
+  ddrawsink->previous_user_data = (LONG_PTR) NULL;
   ddrawsink->last_buffer = NULL;
   ddrawsink->caps = NULL;
   ddrawsink->window_thread = NULL;
@@ -1575,14 +1578,15 @@ WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 
     /* Temporarily restore the previous user_data */
     if (ddrawsink->previous_user_data)
-      SetWindowLongPtr ( hWnd, GWLP_USERDATA, ddrawsink->previous_user_data );
+      SetWindowLongPtr (hWnd, GWLP_USERDATA, ddrawsink->previous_user_data);
 
     /* Call previous WndProc */
-    ret = CallWindowProc (
-        ddrawsink->previous_wndproc, hWnd, message, wParam, lParam);
+    ret =
+        CallWindowProc (ddrawsink->previous_wndproc, hWnd, message, wParam,
+        lParam);
 
     /* Point the user_data back to our ddraw_sink */
-    SetWindowLongPtr ( hWnd, GWLP_USERDATA, (LONG_PTR)ddrawsink );
+    SetWindowLongPtr (hWnd, GWLP_USERDATA, (LONG_PTR) ddrawsink);
   } else {
     /* if there was no previous custom WndProc, call Window's default one */
     ret = DefWindowProc (hWnd, message, wParam, lParam);
diff --git a/sys/pvr2d/gstpvrvideosink.c b/sys/pvr2d/gstpvrvideosink.c
index 7dc30c1b05..6d117fb90c 100644
--- a/sys/pvr2d/gstpvrvideosink.c
+++ b/sys/pvr2d/gstpvrvideosink.c
@@ -564,7 +564,8 @@ gst_pvrvideosink_blit (GstPVRVideoSink * pvrvideosink, GstBuffer * buffer)
   }
 
   if (pvrvideosink->keep_aspect) {
-    GstVideoRectangle src, dst;
+    GstVideoRectangle src = { 0, };
+    GstVideoRectangle dst = { 0, };
 
     src.w = GST_VIDEO_SINK_WIDTH (pvrvideosink);
     src.h = GST_VIDEO_SINK_HEIGHT (pvrvideosink);
diff --git a/sys/vdpau/gstvdpvideopostprocess.c b/sys/vdpau/gstvdpvideopostprocess.c
index 483e74a544..b7b68798c9 100644
--- a/sys/vdpau/gstvdpvideopostprocess.c
+++ b/sys/vdpau/gstvdpvideopostprocess.c
@@ -674,9 +674,8 @@ gst_vdp_vpp_drain (GstVdpVideoPostProcess * vpp)
     GstVdpOutputBuffer *outbuf;
 
     GstStructure *structure;
-    GstVideoRectangle src_r = { 0, }
-    , dest_r = {
-    0,};
+    GstVideoRectangle src_r = { 0, };
+    GstVideoRectangle dest_r = { 0, };
     VdpRect rect;
 
     GstVdpDevice *device;
@@ -705,7 +704,7 @@ gst_vdp_vpp_drain (GstVdpVideoPostProcess * vpp)
       goto invalid_caps;
 
     if (vpp->force_aspect_ratio) {
-      GstVideoRectangle res_r;
+      GstVideoRectangle res_r = { 0, };
 
       gst_video_sink_center_rect (src_r, dest_r, &res_r, TRUE);
       rect.x0 = res_r.x;