Function rdo_loop_plane_error

fn rdo_loop_plane_error<T: Pixel>(
    base_sbo: TileSuperBlockOffset,
    offset_sbo: TileSuperBlockOffset,
    sb_w: usize,
    sb_h: usize,
    fi: &FrameInvariants<T>,
    ts: &TileStateMut<'_, T>,
    blocks: &TileBlocks<'_>,
    test: &Frame<T>,
    src: &Tile<'_, T>,
    pli: usize,
) -> ScaledDistortion