kCVImageBufferContentLightLevelInfoKey
A key to the content light level information.
Declaration
let kCVImageBufferContentLightLevelInfoKey: CFStringDiscussion
The value for this key is 4 bytes, of type CFData. It contains big-endian data to match the payload of the content light level information in the supplemental enhancement information (SEI) message.
See Also
Constants
kCVImageBufferCGColorSpaceKeykCVImageBufferCleanApertureKeykCVImageBufferPreferredCleanApertureKeykCVImageBufferFieldCountKeykCVImageBufferFieldDetailKeykCVImageBufferPixelAspectRatioKeykCVImageBufferDisplayDimensionsKeykCVImageBufferGammaLevelKeykCVImageBufferICCProfileKeykCVImageBufferYCbCrMatrixKeykCVImageBufferColorPrimariesKeykCVImageBufferTransferFunctionKeykCVImageBufferChromaLocationTopFieldKeykCVImageBufferChromaLocationBottomFieldKeykCVImageBufferChromaSubsamplingKey