kCVImageBufferAlphaChannelIsOpaque
A key to indicate whether the alpha channel is fully opaque.
Declaration
let kCVImageBufferAlphaChannelIsOpaque: CFStringDiscussion
The value for this key is kCFBooleanTrue to indicate that the alpha channel is fully opaque. This key isn’t used if the pixel format type has no alpha channel.
See Also
Constants
kCVImageBufferCGColorSpaceKeykCVImageBufferCleanApertureKeykCVImageBufferPreferredCleanApertureKeykCVImageBufferFieldCountKeykCVImageBufferFieldDetailKeykCVImageBufferPixelAspectRatioKeykCVImageBufferDisplayDimensionsKeykCVImageBufferGammaLevelKeykCVImageBufferICCProfileKeykCVImageBufferYCbCrMatrixKeykCVImageBufferColorPrimariesKeykCVImageBufferTransferFunctionKeykCVImageBufferChromaLocationTopFieldKeykCVImageBufferChromaLocationBottomFieldKeykCVImageBufferChromaSubsamplingKey