---
title: AVMetadataIdentifier
framework: avfoundation
role: symbol
role_heading: Structure
path: avfoundation/avmetadataidentifier
---

# AVMetadataIdentifier

A structure that defines identifiers for metadata formats.

## Declaration

```swift
struct AVMetadataIdentifier
```

## Topics

### Common metadata identifiers

- [commonIdentifierAccessibilityDescription](avfoundation/avmetadataidentifier/commonidentifieraccessibilitydescription.md)
- [commonIdentifierAlbumName](avfoundation/avmetadataidentifier/commonidentifieralbumname.md)
- [commonIdentifierArtist](avfoundation/avmetadataidentifier/commonidentifierartist.md)
- [commonIdentifierArtwork](avfoundation/avmetadataidentifier/commonidentifierartwork.md)
- [commonIdentifierAssetIdentifier](avfoundation/avmetadataidentifier/commonidentifierassetidentifier.md)
- [commonIdentifierAuthor](avfoundation/avmetadataidentifier/commonidentifierauthor.md)
- [commonIdentifierContributor](avfoundation/avmetadataidentifier/commonidentifiercontributor.md)
- [commonIdentifierCopyrights](avfoundation/avmetadataidentifier/commonidentifiercopyrights.md)
- [commonIdentifierCreationDate](avfoundation/avmetadataidentifier/commonidentifiercreationdate.md)
- [commonIdentifierCreator](avfoundation/avmetadataidentifier/commonidentifiercreator.md)
- [commonIdentifierDescription](avfoundation/avmetadataidentifier/commonidentifierdescription.md)
- [commonIdentifierFormat](avfoundation/avmetadataidentifier/commonidentifierformat.md)
- [commonIdentifierLanguage](avfoundation/avmetadataidentifier/commonidentifierlanguage.md)
- [commonIdentifierLastModifiedDate](avfoundation/avmetadataidentifier/commonidentifierlastmodifieddate.md)
- [commonIdentifierLocation](avfoundation/avmetadataidentifier/commonidentifierlocation.md)
- [commonIdentifierMake](avfoundation/avmetadataidentifier/commonidentifiermake.md)
- [commonIdentifierModel](avfoundation/avmetadataidentifier/commonidentifiermodel.md)
- [commonIdentifierPublisher](avfoundation/avmetadataidentifier/commonidentifierpublisher.md)
- [commonIdentifierRelation](avfoundation/avmetadataidentifier/commonidentifierrelation.md)
- [commonIdentifierSoftware](avfoundation/avmetadataidentifier/commonidentifiersoftware.md)
- [commonIdentifierSource](avfoundation/avmetadataidentifier/commonidentifiersource.md)
- [commonIdentifierSubject](avfoundation/avmetadataidentifier/commonidentifiersubject.md)
- [commonIdentifierTitle](avfoundation/avmetadataidentifier/commonidentifiertitle.md)
- [commonIdentifierType](avfoundation/avmetadataidentifier/commonidentifiertype.md)

### iTunes metadata identifiers

- [iTunesMetadataAccountKind](avfoundation/avmetadataidentifier/itunesmetadataaccountkind.md)
- [iTunesMetadataAcknowledgement](avfoundation/avmetadataidentifier/itunesmetadataacknowledgement.md)
- [iTunesMetadataAlbum](avfoundation/avmetadataidentifier/itunesmetadataalbum.md)
- [iTunesMetadataAlbumArtist](avfoundation/avmetadataidentifier/itunesmetadataalbumartist.md)
- [iTunesMetadataAppleID](avfoundation/avmetadataidentifier/itunesmetadataappleid.md)
- [iTunesMetadataArranger](avfoundation/avmetadataidentifier/itunesmetadataarranger.md)
- [iTunesMetadataArtDirector](avfoundation/avmetadataidentifier/itunesmetadataartdirector.md)
- [iTunesMetadataArtist](avfoundation/avmetadataidentifier/itunesmetadataartist.md)
- [iTunesMetadataArtistID](avfoundation/avmetadataidentifier/itunesmetadataartistid.md)
- [iTunesMetadataAuthor](avfoundation/avmetadataidentifier/itunesmetadataauthor.md)
- [iTunesMetadataBeatsPerMin](avfoundation/avmetadataidentifier/itunesmetadatabeatspermin.md)
- [iTunesMetadataComposer](avfoundation/avmetadataidentifier/itunesmetadatacomposer.md)
- [iTunesMetadataConductor](avfoundation/avmetadataidentifier/itunesmetadataconductor.md)
- [iTunesMetadataContentRating](avfoundation/avmetadataidentifier/itunesmetadatacontentrating.md)
- [iTunesMetadataCopyright](avfoundation/avmetadataidentifier/itunesmetadatacopyright.md)
- [iTunesMetadataCoverArt](avfoundation/avmetadataidentifier/itunesmetadatacoverart.md)
- [iTunesMetadataCredits](avfoundation/avmetadataidentifier/itunesmetadatacredits.md)
- [iTunesMetadataDescription](avfoundation/avmetadataidentifier/itunesmetadatadescription.md)
- [iTunesMetadataDirector](avfoundation/avmetadataidentifier/itunesmetadatadirector.md)
- [iTunesMetadataDiscCompilation](avfoundation/avmetadataidentifier/itunesmetadatadisccompilation.md)
- [iTunesMetadataDiscNumber](avfoundation/avmetadataidentifier/itunesmetadatadiscnumber.md)
- [iTunesMetadataEncodedBy](avfoundation/avmetadataidentifier/itunesmetadataencodedby.md)
- [iTunesMetadataEncodingTool](avfoundation/avmetadataidentifier/itunesmetadataencodingtool.md)
- [iTunesMetadataEQ](avfoundation/avmetadataidentifier/itunesmetadataeq.md)
- [iTunesMetadataExecProducer](avfoundation/avmetadataidentifier/itunesmetadataexecproducer.md)
- [iTunesMetadataGenreID](avfoundation/avmetadataidentifier/itunesmetadatagenreid.md)
- [iTunesMetadataGrouping](avfoundation/avmetadataidentifier/itunesmetadatagrouping.md)
- [iTunesMetadataLinerNotes](avfoundation/avmetadataidentifier/itunesmetadatalinernotes.md)
- [iTunesMetadataLyrics](avfoundation/avmetadataidentifier/itunesmetadatalyrics.md)
- [iTunesMetadataOnlineExtras](avfoundation/avmetadataidentifier/itunesmetadataonlineextras.md)
- [iTunesMetadataOriginalArtist](avfoundation/avmetadataidentifier/itunesmetadataoriginalartist.md)
- [iTunesMetadataPerformer](avfoundation/avmetadataidentifier/itunesmetadataperformer.md)
- [iTunesMetadataPhonogramRights](avfoundation/avmetadataidentifier/itunesmetadataphonogramrights.md)
- [iTunesMetadataPlaylistID](avfoundation/avmetadataidentifier/itunesmetadataplaylistid.md)
- [iTunesMetadataPredefinedGenre](avfoundation/avmetadataidentifier/itunesmetadatapredefinedgenre.md)
- [iTunesMetadataProducer](avfoundation/avmetadataidentifier/itunesmetadataproducer.md)
- [iTunesMetadataPublisher](avfoundation/avmetadataidentifier/itunesmetadatapublisher.md)
- [iTunesMetadataRecordCompany](avfoundation/avmetadataidentifier/itunesmetadatarecordcompany.md)
- [iTunesMetadataReleaseDate](avfoundation/avmetadataidentifier/itunesmetadatareleasedate.md)
- [iTunesMetadataSoloist](avfoundation/avmetadataidentifier/itunesmetadatasoloist.md)
- [iTunesMetadataSongID](avfoundation/avmetadataidentifier/itunesmetadatasongid.md)
- [iTunesMetadataSongName](avfoundation/avmetadataidentifier/itunesmetadatasongname.md)
- [iTunesMetadataSoundEngineer](avfoundation/avmetadataidentifier/itunesmetadatasoundengineer.md)
- [iTunesMetadataThanks](avfoundation/avmetadataidentifier/itunesmetadatathanks.md)
- [iTunesMetadataTrackNumber](avfoundation/avmetadataidentifier/itunesmetadatatracknumber.md)
- [iTunesMetadataTrackSubTitle](avfoundation/avmetadataidentifier/itunesmetadatatracksubtitle.md)
- [iTunesMetadataUserComment](avfoundation/avmetadataidentifier/itunesmetadatausercomment.md)
- [iTunesMetadataUserGenre](avfoundation/avmetadataidentifier/itunesmetadatausergenre.md)

### QuickTime metadata identifiers

- [quickTimeMetadataAIMEData](avfoundation/avmetadataidentifier/quicktimemetadataaimedata.md)
- [quickTimeMetadataAccessibilityDescription](avfoundation/avmetadataidentifier/quicktimemetadataaccessibilitydescription.md)
- [quickTimeMetadataAlbum](avfoundation/avmetadataidentifier/quicktimemetadataalbum.md)
- [quickTimeMetadataArranger](avfoundation/avmetadataidentifier/quicktimemetadataarranger.md)
- [quickTimeMetadataArtist](avfoundation/avmetadataidentifier/quicktimemetadataartist.md)
- [quickTimeMetadataArtwork](avfoundation/avmetadataidentifier/quicktimemetadataartwork.md)
- [quickTimeMetadataAuthor](avfoundation/avmetadataidentifier/quicktimemetadataauthor.md)
- [quickTimeMetadataAutoLivePhoto](avfoundation/avmetadataidentifier/quicktimemetadataautolivephoto.md)
- [quickTimeMetadataCameraFocalLength35mmEquivalent](avfoundation/avmetadataidentifier/quicktimemetadatacamerafocallength35mmequivalent.md)
- [quickTimeMetadataCameraFrameReadoutTime](avfoundation/avmetadataidentifier/quicktimemetadatacameraframereadouttime.md)
- [quickTimeMetadataCameraISOSensitivity](avfoundation/avmetadataidentifier/quicktimemetadatacameraisosensitivity.md)
- [quickTimeMetadataCameraIdentifier](avfoundation/avmetadataidentifier/quicktimemetadatacameraidentifier.md)
- [quickTimeMetadataCameraLensIrisFNumber](avfoundation/avmetadataidentifier/quicktimemetadatacameralensirisfnumber.md)
- [quickTimeMetadataCameraLensModel](avfoundation/avmetadataidentifier/quicktimemetadatacameralensmodel.md)
- [quickTimeMetadataCameraShutterSpeedAngle](avfoundation/avmetadataidentifier/quicktimemetadatacamerashutterspeedangle.md)
- [quickTimeMetadataCameraShutterSpeedTime](avfoundation/avmetadataidentifier/quicktimemetadatacamerashutterspeedtime.md)
- [quickTimeMetadataCameraWhiteBalance](avfoundation/avmetadataidentifier/quicktimemetadatacamerawhitebalance.md)
- [quickTimeMetadataCinematicVideoIntent](avfoundation/avmetadataidentifier/quicktimemetadatacinematicvideointent.md)
- [quickTimeMetadataCollectionUser](avfoundation/avmetadataidentifier/quicktimemetadatacollectionuser.md)
- [quickTimeMetadataComment](avfoundation/avmetadataidentifier/quicktimemetadatacomment.md)
- [quickTimeMetadataComposer](avfoundation/avmetadataidentifier/quicktimemetadatacomposer.md)
- [quickTimeMetadataContentIdentifier](avfoundation/avmetadataidentifier/quicktimemetadatacontentidentifier.md)
- [quickTimeMetadataCopyright](avfoundation/avmetadataidentifier/quicktimemetadatacopyright.md)
- [quickTimeMetadataCreationDate](avfoundation/avmetadataidentifier/quicktimemetadatacreationdate.md)
- [quickTimeMetadataCredits](avfoundation/avmetadataidentifier/quicktimemetadatacredits.md)
- [quickTimeMetadataDescription](avfoundation/avmetadataidentifier/quicktimemetadatadescription.md)
- [quickTimeMetadataDetectedCatBody](avfoundation/avmetadataidentifier/quicktimemetadatadetectedcatbody.md)
- [quickTimeMetadataDetectedDogBody](avfoundation/avmetadataidentifier/quicktimemetadatadetecteddogbody.md)
- [quickTimeMetadataDetectedFace](avfoundation/avmetadataidentifier/quicktimemetadatadetectedface.md)
- [quickTimeMetadataDetectedHumanBody](avfoundation/avmetadataidentifier/quicktimemetadatadetectedhumanbody.md)
- [quickTimeMetadataDetectedSalientObject](avfoundation/avmetadataidentifier/quicktimemetadatadetectedsalientobject.md)
- [quickTimeMetadataDirectionFacing](avfoundation/avmetadataidentifier/quicktimemetadatadirectionfacing.md)
- [quickTimeMetadataDirectionMotion](avfoundation/avmetadataidentifier/quicktimemetadatadirectionmotion.md)
- [quickTimeMetadataDirector](avfoundation/avmetadataidentifier/quicktimemetadatadirector.md)
- [quickTimeMetadataDisplayName](avfoundation/avmetadataidentifier/quicktimemetadatadisplayname.md)
- [quickTimeMetadataEncodedBy](avfoundation/avmetadataidentifier/quicktimemetadataencodedby.md)
- [quickTimeMetadataFullFrameRatePlaybackIntent](avfoundation/avmetadataidentifier/quicktimemetadatafullframerateplaybackintent.md)
- [quickTimeMetadataGenre](avfoundation/avmetadataidentifier/quicktimemetadatagenre.md)
- [quickTimeMetadataInformation](avfoundation/avmetadataidentifier/quicktimemetadatainformation.md)
- [quickTimeMetadataIsMontage](avfoundation/avmetadataidentifier/quicktimemetadataismontage.md)
- [quickTimeMetadataKeywords](avfoundation/avmetadataidentifier/quicktimemetadatakeywords.md)
- [quickTimeMetadataLivePhotoVitalityScore](avfoundation/avmetadataidentifier/quicktimemetadatalivephotovitalityscore.md)
- [quickTimeMetadataLivePhotoVitalityScoringVersion](avfoundation/avmetadataidentifier/quicktimemetadatalivephotovitalityscoringversion.md)
- [quickTimeMetadataLocationBody](avfoundation/avmetadataidentifier/quicktimemetadatalocationbody.md)
- [quickTimeMetadataLocationDate](avfoundation/avmetadataidentifier/quicktimemetadatalocationdate.md)
- [quickTimeMetadataLocationHorizontalAccuracyInMeters](avfoundation/avmetadataidentifier/quicktimemetadatalocationhorizontalaccuracyinmeters.md)
- [quickTimeMetadataLocationISO6709](avfoundation/avmetadataidentifier/quicktimemetadatalocationiso6709.md)
- [quickTimeMetadataLocationName](avfoundation/avmetadataidentifier/quicktimemetadatalocationname.md)
- [quickTimeMetadataLocationNote](avfoundation/avmetadataidentifier/quicktimemetadatalocationnote.md)
- [quickTimeMetadataLocationRole](avfoundation/avmetadataidentifier/quicktimemetadatalocationrole.md)
- [quickTimeMetadataMake](avfoundation/avmetadataidentifier/quicktimemetadatamake.md)
- [quickTimeMetadataModel](avfoundation/avmetadataidentifier/quicktimemetadatamodel.md)
- [quickTimeMetadataOriginalArtist](avfoundation/avmetadataidentifier/quicktimemetadataoriginalartist.md)
- [quickTimeMetadataPerformer](avfoundation/avmetadataidentifier/quicktimemetadataperformer.md)
- [quickTimeMetadataPhonogramRights](avfoundation/avmetadataidentifier/quicktimemetadataphonogramrights.md)
- [quickTimeMetadataPreferredAffineTransform](avfoundation/avmetadataidentifier/quicktimemetadatapreferredaffinetransform.md)
- [quickTimeMetadataPresentationImmersiveMedia](avfoundation/avmetadataidentifier/quicktimemetadatapresentationimmersivemedia.md)
- [quickTimeMetadataProducer](avfoundation/avmetadataidentifier/quicktimemetadataproducer.md)
- [quickTimeMetadataPublisher](avfoundation/avmetadataidentifier/quicktimemetadatapublisher.md)
- [quickTimeMetadataRatingUser](avfoundation/avmetadataidentifier/quicktimemetadataratinguser.md)
- [quickTimeMetadataSoftware](avfoundation/avmetadataidentifier/quicktimemetadatasoftware.md)
- [quickTimeMetadataSpatialOverCaptureQualityScore](avfoundation/avmetadataidentifier/quicktimemetadataspatialovercapturequalityscore.md)
- [quickTimeMetadataSpatialOverCaptureQualityScoringVersion](avfoundation/avmetadataidentifier/quicktimemetadataspatialovercapturequalityscoringversion.md)
- [quickTimeMetadataTitle](avfoundation/avmetadataidentifier/quicktimemetadatatitle.md)
- [quickTimeMetadataVideoOrientation](avfoundation/avmetadataidentifier/quicktimemetadatavideoorientation.md)
- [quickTimeMetadataWhiteBalanceByCCTColorMatrices](avfoundation/avmetadataidentifier/quicktimemetadatawhitebalancebycctcolormatrices.md)
- [quickTimeMetadataWhiteBalanceByCCTWhiteBalanceFactors](avfoundation/avmetadataidentifier/quicktimemetadatawhitebalancebycctwhitebalancefactors.md)
- [quickTimeMetadataYear](avfoundation/avmetadataidentifier/quicktimemetadatayear.md)
- [quickTimeMetadataiXML](avfoundation/avmetadataidentifier/quicktimemetadataixml.md)

### QuickTime user metadata identifiers

- [quickTimeUserDataAccessibilityDescription](avfoundation/avmetadataidentifier/quicktimeuserdataaccessibilitydescription.md)
- [quickTimeUserDataAlbum](avfoundation/avmetadataidentifier/quicktimeuserdataalbum.md)
- [quickTimeUserDataArranger](avfoundation/avmetadataidentifier/quicktimeuserdataarranger.md)
- [quickTimeUserDataArtist](avfoundation/avmetadataidentifier/quicktimeuserdataartist.md)
- [quickTimeUserDataAuthor](avfoundation/avmetadataidentifier/quicktimeuserdataauthor.md)
- [quickTimeUserDataChapter](avfoundation/avmetadataidentifier/quicktimeuserdatachapter.md)
- [quickTimeUserDataComment](avfoundation/avmetadataidentifier/quicktimeuserdatacomment.md)
- [quickTimeUserDataComposer](avfoundation/avmetadataidentifier/quicktimeuserdatacomposer.md)
- [quickTimeUserDataCopyright](avfoundation/avmetadataidentifier/quicktimeuserdatacopyright.md)
- [quickTimeUserDataCreationDate](avfoundation/avmetadataidentifier/quicktimeuserdatacreationdate.md)
- [quickTimeUserDataCredits](avfoundation/avmetadataidentifier/quicktimeuserdatacredits.md)
- [quickTimeUserDataDescription](avfoundation/avmetadataidentifier/quicktimeuserdatadescription.md)
- [quickTimeUserDataDirector](avfoundation/avmetadataidentifier/quicktimeuserdatadirector.md)
- [quickTimeUserDataDisclaimer](avfoundation/avmetadataidentifier/quicktimeuserdatadisclaimer.md)
- [quickTimeUserDataEncodedBy](avfoundation/avmetadataidentifier/quicktimeuserdataencodedby.md)
- [quickTimeUserDataFullName](avfoundation/avmetadataidentifier/quicktimeuserdatafullname.md)
- [quickTimeUserDataGenre](avfoundation/avmetadataidentifier/quicktimeuserdatagenre.md)
- [quickTimeUserDataHostComputer](avfoundation/avmetadataidentifier/quicktimeuserdatahostcomputer.md)
- [quickTimeUserDataInformation](avfoundation/avmetadataidentifier/quicktimeuserdatainformation.md)
- [quickTimeUserDataKeywords](avfoundation/avmetadataidentifier/quicktimeuserdatakeywords.md)
- [quickTimeUserDataLocationISO6709](avfoundation/avmetadataidentifier/quicktimeuserdatalocationiso6709.md)
- [quickTimeUserDataMake](avfoundation/avmetadataidentifier/quicktimeuserdatamake.md)
- [quickTimeUserDataModel](avfoundation/avmetadataidentifier/quicktimeuserdatamodel.md)
- [quickTimeUserDataOriginalArtist](avfoundation/avmetadataidentifier/quicktimeuserdataoriginalartist.md)
- [quickTimeUserDataOriginalFormat](avfoundation/avmetadataidentifier/quicktimeuserdataoriginalformat.md)
- [quickTimeUserDataOriginalSource](avfoundation/avmetadataidentifier/quicktimeuserdataoriginalsource.md)
- [quickTimeUserDataPerformers](avfoundation/avmetadataidentifier/quicktimeuserdataperformers.md)
- [quickTimeUserDataPhonogramRights](avfoundation/avmetadataidentifier/quicktimeuserdataphonogramrights.md)
- [quickTimeUserDataProducer](avfoundation/avmetadataidentifier/quicktimeuserdataproducer.md)
- [quickTimeUserDataProduct](avfoundation/avmetadataidentifier/quicktimeuserdataproduct.md)
- [quickTimeUserDataPublisher](avfoundation/avmetadataidentifier/quicktimeuserdatapublisher.md)
- [quickTimeUserDataSoftware](avfoundation/avmetadataidentifier/quicktimeuserdatasoftware.md)
- [quickTimeUserDataSpecialPlaybackRequirements](avfoundation/avmetadataidentifier/quicktimeuserdataspecialplaybackrequirements.md)
- [quickTimeUserDataTaggedCharacteristic](avfoundation/avmetadataidentifier/quicktimeuserdatataggedcharacteristic.md)
- [quickTimeUserDataTrackName](avfoundation/avmetadataidentifier/quicktimeuserdatatrackname.md)
- [quickTimeUserDataTrack](avfoundation/avmetadataidentifier/quicktimeuserdatatrack.md)
- [quickTimeUserDataURLLink](avfoundation/avmetadataidentifier/quicktimeuserdataurllink.md)
- [quickTimeUserDataWarning](avfoundation/avmetadataidentifier/quicktimeuserdatawarning.md)
- [quickTimeUserDataWriter](avfoundation/avmetadataidentifier/quicktimeuserdatawriter.md)

### ID3 metadata identifiers

- [id3MetadataAlbumSortOrder](avfoundation/avmetadataidentifier/id3metadataalbumsortorder.md)
- [id3MetadataAlbumTitle](avfoundation/avmetadataidentifier/id3metadataalbumtitle.md)
- [id3MetadataAttachedPicture](avfoundation/avmetadataidentifier/id3metadataattachedpicture.md)
- [id3MetadataAudioEncryption](avfoundation/avmetadataidentifier/id3metadataaudioencryption.md)
- [id3MetadataAudioSeekPointIndex](avfoundation/avmetadataidentifier/id3metadataaudioseekpointindex.md)
- [id3MetadataBand](avfoundation/avmetadataidentifier/id3metadataband.md)
- [id3MetadataBeatsPerMinute](avfoundation/avmetadataidentifier/id3metadatabeatsperminute.md)
- [id3MetadataComments](avfoundation/avmetadataidentifier/id3metadatacomments.md)
- [id3MetadataCommercial](avfoundation/avmetadataidentifier/id3metadatacommercial.md)
- [id3MetadataCommercialInformation](avfoundation/avmetadataidentifier/id3metadatacommercialinformation.md)
- [id3MetadataComposer](avfoundation/avmetadataidentifier/id3metadatacomposer.md)
- [id3MetadataConductor](avfoundation/avmetadataidentifier/id3metadataconductor.md)
- [id3MetadataContentGroupDescription](avfoundation/avmetadataidentifier/id3metadatacontentgroupdescription.md)
- [id3MetadataContentType](avfoundation/avmetadataidentifier/id3metadatacontenttype.md)
- [id3MetadataCopyright](avfoundation/avmetadataidentifier/id3metadatacopyright.md)
- [id3MetadataCopyrightInformation](avfoundation/avmetadataidentifier/id3metadatacopyrightinformation.md)
- [id3MetadataDate](avfoundation/avmetadataidentifier/id3metadatadate.md)
- [id3MetadataEncodedBy](avfoundation/avmetadataidentifier/id3metadataencodedby.md)
- [id3MetadataEncodedWith](avfoundation/avmetadataidentifier/id3metadataencodedwith.md)
- [id3MetadataEncodingTime](avfoundation/avmetadataidentifier/id3metadataencodingtime.md)
- [id3MetadataEncryption](avfoundation/avmetadataidentifier/id3metadataencryption.md)
- [id3MetadataEqualization](avfoundation/avmetadataidentifier/id3metadataequalization.md)
- [id3MetadataEqualization2](avfoundation/avmetadataidentifier/id3metadataequalization2.md)
- [id3MetadataEventTimingCodes](avfoundation/avmetadataidentifier/id3metadataeventtimingcodes.md)
- [id3MetadataFileOwner](avfoundation/avmetadataidentifier/id3metadatafileowner.md)
- [id3MetadataFileType](avfoundation/avmetadataidentifier/id3metadatafiletype.md)
- [id3MetadataGeneralEncapsulatedObject](avfoundation/avmetadataidentifier/id3metadatageneralencapsulatedobject.md)
- [id3MetadataGroupIdentifier](avfoundation/avmetadataidentifier/id3metadatagroupidentifier.md)
- [id3MetadataInitialKey](avfoundation/avmetadataidentifier/id3metadatainitialkey.md)
- [id3MetadataInternationalStandardRecordingCode](avfoundation/avmetadataidentifier/id3metadatainternationalstandardrecordingcode.md)
- [id3MetadataInternetRadioStationName](avfoundation/avmetadataidentifier/id3metadatainternetradiostationname.md)
- [id3MetadataInternetRadioStationOwner](avfoundation/avmetadataidentifier/id3metadatainternetradiostationowner.md)
- [id3MetadataInvolvedPeopleList_v23](avfoundation/avmetadataidentifier/id3metadatainvolvedpeoplelist_v23.md)
- [id3MetadataInvolvedPeopleList_v24](avfoundation/avmetadataidentifier/id3metadatainvolvedpeoplelist_v24.md)
- [id3MetadataLanguage](avfoundation/avmetadataidentifier/id3metadatalanguage.md)
- [id3MetadataLeadPerformer](avfoundation/avmetadataidentifier/id3metadataleadperformer.md)
- [id3MetadataLength](avfoundation/avmetadataidentifier/id3metadatalength.md)
- [id3MetadataLink](avfoundation/avmetadataidentifier/id3metadatalink.md)
- [id3MetadataLyricist](avfoundation/avmetadataidentifier/id3metadatalyricist.md)
- [id3MetadataMediaType](avfoundation/avmetadataidentifier/id3metadatamediatype.md)
- [id3MetadataModifiedBy](avfoundation/avmetadataidentifier/id3metadatamodifiedby.md)
- [id3MetadataMood](avfoundation/avmetadataidentifier/id3metadatamood.md)
- [id3MetadataMPEGLocationLookupTable](avfoundation/avmetadataidentifier/id3metadatampeglocationlookuptable.md)
- [id3MetadataMusicCDIdentifier](avfoundation/avmetadataidentifier/id3metadatamusiccdidentifier.md)
- [id3MetadataMusicianCreditsList](avfoundation/avmetadataidentifier/id3metadatamusiciancreditslist.md)
- [id3MetadataOfficialArtistWebpage](avfoundation/avmetadataidentifier/id3metadataofficialartistwebpage.md)
- [id3MetadataOfficialAudioFileWebpage](avfoundation/avmetadataidentifier/id3metadataofficialaudiofilewebpage.md)
- [id3MetadataOfficialAudioSourceWebpage](avfoundation/avmetadataidentifier/id3metadataofficialaudiosourcewebpage.md)
- [id3MetadataOfficialInternetRadioStationHomepage](avfoundation/avmetadataidentifier/id3metadataofficialinternetradiostationhomepage.md)
- [id3MetadataOfficialPublisherWebpage](avfoundation/avmetadataidentifier/id3metadataofficialpublisherwebpage.md)
- [id3MetadataOriginalAlbumTitle](avfoundation/avmetadataidentifier/id3metadataoriginalalbumtitle.md)
- [id3MetadataOriginalArtist](avfoundation/avmetadataidentifier/id3metadataoriginalartist.md)
- [id3MetadataOriginalFilename](avfoundation/avmetadataidentifier/id3metadataoriginalfilename.md)
- [id3MetadataOriginalLyricist](avfoundation/avmetadataidentifier/id3metadataoriginallyricist.md)
- [id3MetadataOriginalReleaseTime](avfoundation/avmetadataidentifier/id3metadataoriginalreleasetime.md)
- [id3MetadataOriginalReleaseYear](avfoundation/avmetadataidentifier/id3metadataoriginalreleaseyear.md)
- [id3MetadataOwnership](avfoundation/avmetadataidentifier/id3metadataownership.md)
- [id3MetadataPartOfASet](avfoundation/avmetadataidentifier/id3metadatapartofaset.md)
- [id3MetadataPayment](avfoundation/avmetadataidentifier/id3metadatapayment.md)
- [id3MetadataPerformerSortOrder](avfoundation/avmetadataidentifier/id3metadataperformersortorder.md)
- [id3MetadataPlayCounter](avfoundation/avmetadataidentifier/id3metadataplaycounter.md)
- [id3MetadataPlaylistDelay](avfoundation/avmetadataidentifier/id3metadataplaylistdelay.md)
- [id3MetadataPopularimeter](avfoundation/avmetadataidentifier/id3metadatapopularimeter.md)
- [id3MetadataPositionSynchronization](avfoundation/avmetadataidentifier/id3metadatapositionsynchronization.md)
- [id3MetadataPrivate](avfoundation/avmetadataidentifier/id3metadataprivate.md)
- [id3MetadataProducedNotice](avfoundation/avmetadataidentifier/id3metadataproducednotice.md)
- [id3MetadataPublisher](avfoundation/avmetadataidentifier/id3metadatapublisher.md)
- [id3MetadataRecommendedBufferSize](avfoundation/avmetadataidentifier/id3metadatarecommendedbuffersize.md)
- [id3MetadataRecordingDates](avfoundation/avmetadataidentifier/id3metadatarecordingdates.md)
- [id3MetadataRecordingTime](avfoundation/avmetadataidentifier/id3metadatarecordingtime.md)
- [id3MetadataRelativeVolumeAdjustment](avfoundation/avmetadataidentifier/id3metadatarelativevolumeadjustment.md)
- [id3MetadataRelativeVolumeAdjustment2](avfoundation/avmetadataidentifier/id3metadatarelativevolumeadjustment2.md)
- [id3MetadataReleaseTime](avfoundation/avmetadataidentifier/id3metadatareleasetime.md)
- [id3MetadataReverb](avfoundation/avmetadataidentifier/id3metadatareverb.md)
- [id3MetadataSeek](avfoundation/avmetadataidentifier/id3metadataseek.md)
- [id3MetadataSetSubtitle](avfoundation/avmetadataidentifier/id3metadatasetsubtitle.md)
- [id3MetadataSignature](avfoundation/avmetadataidentifier/id3metadatasignature.md)
- [id3MetadataSize](avfoundation/avmetadataidentifier/id3metadatasize.md)
- [id3MetadataSubTitle](avfoundation/avmetadataidentifier/id3metadatasubtitle.md)
- [id3MetadataSynchronizedLyric](avfoundation/avmetadataidentifier/id3metadatasynchronizedlyric.md)
- [id3MetadataSynchronizedTempoCodes](avfoundation/avmetadataidentifier/id3metadatasynchronizedtempocodes.md)
- [id3MetadataTaggingTime](avfoundation/avmetadataidentifier/id3metadatataggingtime.md)
- [id3MetadataTermsOfUse](avfoundation/avmetadataidentifier/id3metadatatermsofuse.md)
- [id3MetadataTime](avfoundation/avmetadataidentifier/id3metadatatime.md)
- [id3MetadataTitleDescription](avfoundation/avmetadataidentifier/id3metadatatitledescription.md)
- [id3MetadataTitleSortOrder](avfoundation/avmetadataidentifier/id3metadatatitlesortorder.md)
- [id3MetadataTrackNumber](avfoundation/avmetadataidentifier/id3metadatatracknumber.md)
- [id3MetadataUniqueFileIdentifier](avfoundation/avmetadataidentifier/id3metadatauniquefileidentifier.md)
- [id3MetadataUnsynchronizedLyric](avfoundation/avmetadataidentifier/id3metadataunsynchronizedlyric.md)
- [id3MetadataUserText](avfoundation/avmetadataidentifier/id3metadatausertext.md)
- [id3MetadataUserURL](avfoundation/avmetadataidentifier/id3metadatauserurl.md)
- [id3MetadataYear](avfoundation/avmetadataidentifier/id3metadatayear.md)
- [id3MetadataCommerical](avfoundation/avmetadataidentifier/id3metadatacommerical.md)

### 3GP user metadata identifiers

- [identifier3GPUserDataAlbumAndTrack](avfoundation/avmetadataidentifier/identifier3gpuserdataalbumandtrack.md)
- [identifier3GPUserDataAuthor](avfoundation/avmetadataidentifier/identifier3gpuserdataauthor.md)
- [identifier3GPUserDataCollection](avfoundation/avmetadataidentifier/identifier3gpuserdatacollection.md)
- [identifier3GPUserDataCopyright](avfoundation/avmetadataidentifier/identifier3gpuserdatacopyright.md)
- [identifier3GPUserDataDescription](avfoundation/avmetadataidentifier/identifier3gpuserdatadescription.md)
- [identifier3GPUserDataGenre](avfoundation/avmetadataidentifier/identifier3gpuserdatagenre.md)
- [identifier3GPUserDataKeywordList](avfoundation/avmetadataidentifier/identifier3gpuserdatakeywordlist.md)
- [identifier3GPUserDataLocation](avfoundation/avmetadataidentifier/identifier3gpuserdatalocation.md)
- [identifier3GPUserDataMediaClassification](avfoundation/avmetadataidentifier/identifier3gpuserdatamediaclassification.md)
- [identifier3GPUserDataMediaRating](avfoundation/avmetadataidentifier/identifier3gpuserdatamediarating.md)
- [identifier3GPUserDataPerformer](avfoundation/avmetadataidentifier/identifier3gpuserdataperformer.md)
- [identifier3GPUserDataRecordingYear](avfoundation/avmetadataidentifier/identifier3gpuserdatarecordingyear.md)
- [identifier3GPUserDataThumbnail](avfoundation/avmetadataidentifier/identifier3gpuserdatathumbnail.md)
- [identifier3GPUserDataTitle](avfoundation/avmetadataidentifier/identifier3gpuserdatatitle.md)
- [identifier3GPUserDataUserRating](avfoundation/avmetadataidentifier/identifier3gpuserdatauserrating.md)

### ISO metadata identifiers

- [isoUserDataAccessibilityDescription](avfoundation/avmetadataidentifier/isouserdataaccessibilitydescription.md)
- [isoUserDataCopyright](avfoundation/avmetadataidentifier/isouserdatacopyright.md)
- [isoUserDataDate](avfoundation/avmetadataidentifier/isouserdatadate.md)
- [isoUserDataTaggedCharacteristic](avfoundation/avmetadataidentifier/isouserdatataggedcharacteristic.md)

### ICY metadata identifiers

- [icyMetadataStreamTitle](avfoundation/avmetadataidentifier/icymetadatastreamtitle.md)
- [icyMetadataStreamURL](avfoundation/avmetadataidentifier/icymetadatastreamurl.md)

### Initializers

- [init(_:)](avfoundation/avmetadataidentifier/init(_:).md)
- [init(rawValue:)](avfoundation/avmetadataidentifier/init(rawvalue:).md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Metadata

- [Retrieving media metadata](avfoundation/retrieving-media-metadata.md)
- [AVMetadataItem](avfoundation/avmetadataitem.md)
- [AVMutableMetadataItem](avfoundation/avmutablemetadataitem.md)
- [AVMetadataKey](avfoundation/avmetadatakey.md)
- [AVMetadataKeySpace](avfoundation/avmetadatakeyspace.md)
- [AVMetadataExtraAttributeKey](avfoundation/avmetadataextraattributekey.md)
- [AVMetadataFormat](avfoundation/avmetadataformat.md)
- [AVMetadataItemFilter](avfoundation/avmetadataitemfilter.md)