commonKeyFormat A key that represents the file format of the media content. Declarationstatic let commonKeyFormat: AVMetadataKey See AlsoCommon metadata keyscommonKeyAccessibilityDescriptioncommonKeyAlbumNamecommonKeyArtistcommonKeyArtworkcommonKeyAuthorcommonKeyContributorcommonKeyCopyrightscommonKeyCreationDatecommonKeyCreatorcommonKeyDescriptioncommonKeyIdentifiercommonKeyLanguagecommonKeyLastModifiedDatecommonKeyLocationcommonKeyMake