Function libmv_samplePlanarPatchByte 

pub unsafe extern "C" fn libmv_samplePlanarPatchByte(
    image: *const c_uchar,
    width: c_int,
    height: c_int,
    channels: c_int,
    xs: *const f64,
    ys: *const f64,
    num_samples_x: c_int,
    num_samples_y: c_int,
    mask: *const f32,
    patch: *mut c_uchar,
    warped_position_x: *mut f64,
    warped_position_y: *mut f64,
)