diff --git a/gui.cc b/gui.cc
index ea840e2..8dcdfc9 100644
--- a/gui.cc
+++ b/gui.cc
@@ -174,10 +174,6 @@ gboolean cb_thread_detect (gpointer data) {
 	gdk_window_invalidate_rect(gtk_widget_get_window(detect_da), NULL, true);
 	filter.NewFrame(dout->image, dout->posx, dout->posy);
 
-	//
-	// matrix values
-
-
 	detect.UnLockImageMutex();
 
 	//
diff --git a/video.cc b/video.cc
index b07af35..af18d23 100644
--- a/video.cc
+++ b/video.cc
@@ -84,6 +84,9 @@ void video_get_driverdevice(std::string *driver, std::string *device) {
 
 
 
+/*
+ * will be called every 2000ms hardcoded @gui.cc function cb_window_show
+ */
 gboolean videoctrl_update(gpointer data) {
 	GtkWidget *grid = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "vidctrl-grid"));
 	GtkWidget *scale = NULL;