Function cv_pixel_buffer_pool_create 

pub unsafe extern "C" fn cv_pixel_buffer_pool_create(
    width: usize,
    height: usize,
    pixel_format_type: u32,
    max_buffers: usize,
    pool_out: *mut *mut c_void,
) -> i32

Swift bridge function cv_pixel_buffer_pool_create for the corresponding Apple API.