kCMFormatDescriptionChromaLocation_Center The chroma sample is fully centered. Declarationlet kCMFormatDescriptionChromaLocation_Center: CFString See AlsoConstantskCMFormatDescriptionChromaLocation_BottomkCMFormatDescriptionChromaLocation_BottomLeftkCMFormatDescriptionChromaLocation_DV420kCMFormatDescriptionChromaLocation_LeftkCMFormatDescriptionChromaLocation_TopkCMFormatDescriptionChromaLocation_TopLeft