-int const VideoContentProperty::SIZE = 0;
-int const VideoContentProperty::FRAME_TYPE = 1;
-int const VideoContentProperty::CROP = 2;
-int const VideoContentProperty::SCALE = 3;
-int const VideoContentProperty::COLOUR_CONVERSION = 4;
-int const VideoContentProperty::FADE_IN = 5;
-int const VideoContentProperty::FADE_OUT = 6;
-int const VideoContentProperty::RANGE = 7;
+int const VideoContentProperty::USE = 0;
+int const VideoContentProperty::SIZE = 1;
+int const VideoContentProperty::FRAME_TYPE = 2;
+int const VideoContentProperty::CROP = 3;
+int const VideoContentProperty::SCALE = 4;
+int const VideoContentProperty::COLOUR_CONVERSION = 5;
+int const VideoContentProperty::FADE_IN = 6;
+int const VideoContentProperty::FADE_OUT = 7;
+int const VideoContentProperty::RANGE = 8;