rdd18UserItems

An AVCaptureAncillaryDataEncoder key corresponding with RDD18 user defined metadata

Declaration

static let rdd18UserItems: AVCaptureAncillaryDataUserKey

Discussion

Clients may inspect the user metadata with AVCaptureAncillaryDataEncoder\currentUserDefinedAncillaryData and set it with AVCaptureAncillaryDataEncoder\setRDD18AncillaryData:forTag:error: AVCaptureAncillaryDataEncoder\setRDD18AncillaryDataString:forTag:error: or remove it with AVCaptureAncillaryDataEncoder\removeRDD18AncillaryDataForTag: