GI.GstVideo.Structs.VideoDither

GstVideoDither provides implementations of several dithering algorithms that can be applied to lines of video pixels to quantize and dither them.

Exported types

newtype VideoDither

Constructors

VideoDither (ManagedPtr VideoDither)

Instances

WrappedPtr VideoDither

Methods

wrappedPtrCalloc :: IO (Ptr VideoDither)

wrappedPtrCopy :: VideoDither -> IO VideoDither

wrappedPtrFree :: Maybe (FunPtr (Ptr VideoDither -> IO ()))

noVideoDither :: Maybe VideoDither

Methods

free

videoDitherFree

Arguments

:: (HasCallStack, MonadIO m)

=> VideoDither

dither: a VideoDither

-> m ()

Free dither

line

videoDitherLine

Arguments

:: (HasCallStack, MonadIO m)

=> VideoDither

dither: a VideoDither

-> Ptr ()

line: pointer to the pixels of the line

-> Word32

x: x coordinate

-> Word32

y: y coordinate

-> Word32

width: the width

-> m ()

Dither width pixels starting from offset x in line using dither.

y is the line number of line in the output image.