+void vout_ControlChangeSampleAspectRatio(vout_thread_t *, unsigned num, unsigned den);
+void vout_ControlChangeCropRatio(vout_thread_t *, unsigned num, unsigned den);
+void vout_ControlChangeCropWindow(vout_thread_t *, int x, int y, int width, int height);
+void vout_ControlChangeCropBorder(vout_thread_t *, int left, int top, int right, int bottom);
+void vout_ControlChangeFilters(vout_thread_t *, const char *);
+void vout_ControlChangeSubFilters(vout_thread_t *, const char *);
+void vout_ControlChangeSubMargin(vout_thread_t *, int);