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_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 *);