pub unsafe extern "C" fn cuvidGetSourceVideoFormat(
obj: CUvideosource,
pvidfmt: *mut CUVIDEOFORMAT,
flags: c_uint,
) -> CUresult
pub unsafe extern "C" fn cuvidGetSourceVideoFormat(
obj: CUvideosource,
pvidfmt: *mut CUVIDEOFORMAT,
flags: c_uint,
) -> CUresult