kCVImageBufferChromaLocationTopFieldKey
A key to the location of chroma top field information in the image buffer.
Declaration
let kCVImageBufferChromaLocationTopFieldKey: CFStringDiscussion
The chroma location value is of type CFString. This key only applies to progressive-scan image data. See Image Buffer Chroma Location Constants for more information.
See Also
Constants
kCVImageBufferCGColorSpaceKeykCVImageBufferCleanApertureKeykCVImageBufferPreferredCleanApertureKeykCVImageBufferFieldCountKeykCVImageBufferFieldDetailKeykCVImageBufferPixelAspectRatioKeykCVImageBufferDisplayDimensionsKeykCVImageBufferGammaLevelKeykCVImageBufferICCProfileKeykCVImageBufferYCbCrMatrixKeykCVImageBufferColorPrimariesKeykCVImageBufferTransferFunctionKeykCVImageBufferChromaLocationBottomFieldKeykCVImageBufferChromaSubsamplingKeykCVImageBufferAlphaChannelIsOpaque