depth Declarationstatic let depth: CMFormatDescription.Extensions.Key See AlsoExtension KeysalphaChannelModealternativeTransferCharacteristicsambientViewingEnvironmentauxiliaryTypeInfobackgroundColorbitsPerComponentbytesPerRowchromaLocationBottomFieldchromaLocationTopFieldcleanAperturecolorPrimariesconformsToMPEG2VideoProfilecontainsAlphaChannelcontentLightLevelInfodefaultFontName