Function rdp_rgba_to_yuv444 

pub fn rdp_rgba_to_yuv444(
    planar_image: &mut YuvPlanarImageMut<'_, i16>,
    rgba: &[u8],
    rgba_stride: u32,
) -> Result<(), YuvError>

Available on crate feature rdp only.

RemoteFX conversion RGBx to YUV 4:4:4