Function vips_sys::im_video_v4l1

pub unsafe extern "C" fn im_video_v4l1(
    im: *mut VipsImage, 
    device: *const c_char, 
    channel: c_int, 
    brightness: c_int, 
    colour: c_int, 
    contrast: c_int, 
    hue: c_int, 
    ngrabs: c_int
) -> c_int