__service_ifce    185 include/gpac/esi.h 	GF_Err (*input_ctrl)(struct __service_ifce *_self, u32 ctrl_type, void *param);
__service_ifce    190 include/gpac/esi.h 	GF_Err (*output_ctrl)(struct __service_ifce *_self, u32 ctrl_type, void *param);