RoiMetadata

Region-of-interest metadata to attach to raw video frames. An empty regions list is the "no ROI" state — semantically equivalent to clearing the override.

Field

Type

Repeated

Description

regions

RoiRegion

Member of

Message

Description

OptionalRoiMetadata

Wrapper carrying optional ROI metadata. Following the same convention as OptionalInt / OptionalString: absence on the parent message means "leave alone"; presence with an empty regions list means "clear".