Unable to import vendor package libraries

Technical Support
1

Hi Team,

I am trying to display surface through HDMIIN for VIM4, when i use HdmiInManager and SystemControlManager classes for this functionality, i am getting compilation error while importing vendor package libraries as below:

import vendor.amlogic.hardware.systemcontrol.V1_0.ISystemControlCallback;
import vendor.amlogic.hardware.systemcontrol.V1_0.NolineParam;
import vendor.amlogic.hardware.systemcontrol.V1_0.OverScanParam;
import vendor.amlogic.hardware.systemcontrol.V1_0.PQDatabaseInfo;
import vendor.amlogic.hardware.systemcontrol.V1_0.Result;
import vendor.amlogic.hardware.systemcontrol.V1_0.SourceInputParam;
import vendor.amlogic.hardware.systemcontrol.V1_0.WhiteBalanceParam;
import vendor.amlogic.hardware.systemcontrol.V1_1.ISystemControl;

Screenshot 2022-07-09 at 1.05.09 AM
Screenshot 2022-07-09 at 1.05.09 AM1920×1069 152 KB

Please help me how to import these packages and access the HDMIIN core functionalities.

Thanks.