Function webp_dev::sys::webp::webp_picture_sharp_argb_to_yuva

pub unsafe fn webp_picture_sharp_argb_to_yuva(
    picture: *mut WebPPicture
) -> c_int

Performs 'sharp' RGBA->YUVA420 downsampling and colorspace conversion.

Downsampling is handled with extra care in case of color clipping. This method is roughly 2x slower than WebPPictureARGBToYUVA() but produces better and sharper YUV representation. Returns false in case of error.