As written in the topic, the ROI update feature nvmultiurisrcbin of is for preprocess, not for the ROI of nvdsanalytics. nvmultiurisrcbin plugin, the low-level lib nvds_rest_server and nvdsanalytics plugin are opensource. you can modify the code to custmize. Here are steps.
- read the code to check how the ROI update feature works. specifically, the clents send ROI update information to nvmultiurisrcbin by REST API, then nvmultiurisrcbin transmit the information to downstream by GST_NVEVENT_ROI_UPDATE event, then nvdsanalytics will update the ROI information after receiving the event.
- write REST API sending code, transmitting envent code and nvdsanalytics updating information code.