{ Parsed from AVFoundation.framework AVMetadataIdentifiers.h }

{$ifdef EXTERNAL_SYMBOLS}
var
  AVMetadataCommonIdentifierTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierCreator: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierSubject: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierPublisher: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierContributor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierCreationDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierLastModifiedDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierType: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierFormat: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierAssetIdentifier: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierSource: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierLanguage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierRelation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierLocation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierCopyrights: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierAlbumName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierAuthor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierArtwork: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierMake: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierModel: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataCommonIdentifierSoftware: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataAlbum: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataArranger: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataAuthor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataChapter: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataComment: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataComposer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataCreationDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataDirector: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataDisclaimer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataEncodedBy: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataFullName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataGenre: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataHostComputer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataInformation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataKeywords: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataMake: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataModel: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataOriginalArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataOriginalFormat: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataOriginalSource: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataPerformers: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataProducer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataPublisher: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataProduct: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataSoftware: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataSpecialPlaybackRequirements: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataTrack: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataWarning: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataWriter: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataURLLink: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataLocationISO6709: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataTrackName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataCredits: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataPhonogramRights: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeUserDataTaggedCharacteristic: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierISOUserDataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierISOUserDataTaggedCharacteristic: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataAuthor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataPerformer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataGenre: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataRecordingYear: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataLocation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataCollection: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataUserRating: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataThumbnail: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataAlbumAndTrack: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataKeywordList: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataMediaClassification: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifier3GPUserDataMediaRating: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataAuthor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataComment: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCreationDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataDirector: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataDisplayName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataInformation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataKeywords: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataProducer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataPublisher: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataAlbum: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataArtwork: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataSoftware: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataYear: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataGenre: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataiXML: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationISO6709: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataMake: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataModel: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataArranger: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataEncodedBy: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataOriginalArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataPerformer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataComposer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCredits: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataPhonogramRights: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCameraIdentifier: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCameraFrameReadoutTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataCollectionUser: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataRatingUser: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationBody: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationNote: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationRole: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataLocationDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataDirectionFacing: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataDirectionMotion: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierQuickTimeMetadataPreferredAffineTransform: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAlbum: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataUserComment: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataCoverArt: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataReleaseDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataEncodedBy: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataPredefinedGenre: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataUserGenre: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataSongName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataTrackSubTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataEncodingTool: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataComposer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAlbumArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAccountKind: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAppleID: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataArtistID: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataSongID: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataDiscCompilation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataDiscNumber: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataGenreID: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataGrouping: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataPlaylistID: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataContentRating: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataBeatsPerMin: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataTrackNumber: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataArtDirector: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataArranger: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAuthor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataLyrics: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataAcknowledgement: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataConductor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataDirector: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataEQ: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataLinerNotes: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataRecordCompany: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataOriginalArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataPhonogramRights: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataProducer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataPerformer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataPublisher: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataSoundEngineer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataSoloist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataCredits: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataThanks: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataOnlineExtras: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifieriTunesMetadataExecProducer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataAudioEncryption: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataAttachedPicture: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataAudioSeekPointIndex: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataComments: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataCommerical: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEncryption: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEqualization: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEqualization2: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEventTimingCodes: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataGeneralEncapsulatedObject: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataGroupIdentifier: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInvolvedPeopleList_v23: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataLink: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataMusicCDIdentifier: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataMPEGLocationLookupTable: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOwnership: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPrivate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPlayCounter: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPopularimeter: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPositionSynchronization: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataRecommendedBufferSize: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataRelativeVolumeAdjustment: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataRelativeVolumeAdjustment2: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataReverb: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSeek: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSignature: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSynchronizedLyric: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSynchronizedTempoCodes: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataAlbumTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataBeatsPerMinute: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataComposer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataContentType: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataCopyright: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataDate: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEncodingTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPlaylistDelay: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalReleaseTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataRecordingTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataReleaseTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTaggingTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEncodedBy: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataLyricist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataFileType: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTime: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInvolvedPeopleList_v24: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataContentGroupDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTitleDescription: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSubTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInitialKey: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataLanguage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataLength: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataMusicianCreditsList: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataMediaType: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataMood: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalAlbumTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalFilename: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalLyricist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalArtist: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOriginalReleaseYear: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataFileOwner: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataLeadPerformer: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataBand: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataConductor: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataModifiedBy: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPartOfASet: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataProducedNotice: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPublisher: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTrackNumber: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataRecordingDates: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInternetRadioStationName: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInternetRadioStationOwner: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSize: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataAlbumSortOrder: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPerformerSortOrder: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTitleSortOrder: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataInternationalStandardRecordingCode: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataEncodedWith: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataSetSubtitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataYear: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataUserText: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataUniqueFileIdentifier: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataTermsOfUse: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataUnsynchronizedLyric: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataCommercialInformation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataCopyrightInformation: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOfficialAudioFileWebpage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOfficialArtistWebpage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOfficialAudioSourceWebpage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOfficialInternetRadioStationHomepage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataPayment: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataOfficialPublisherWebpage: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierID3MetadataUserURL: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierIcyMetadataStreamTitle: NSString { available in 10_10, 8_0 }; cvar; external;
  AVMetadataIdentifierIcyMetadataStreamURL: NSString { available in 10_10, 8_0 }; cvar; external;
{$endif}

