AVMetadataKeySpace A structure that defines a metadata key space. Declarationstruct AVMetadataKeySpace TopicsCommon key spacecommonFormat-specific key spacesaudioFilehlsDateRangeiTunesicyid3isoUserDataquickTimeMetadataquickTimeUserDataInitializersinit(_:)init(rawValue:) RelationshipsConforms ToEquatableHashableRawRepresentableSendableSendableMetatype See AlsoMetadataRetrieving media metadataAVMetadataItemAVMutableMetadataItemAVMetadataIdentifierAVMetadataKeyAVMetadataExtraAttributeKeyAVMetadataFormatAVMetadataItemFilter