1# Date    : 2019/03/08
2# Author  : Snow Yang
3# Mail    : yangsw@mxchip.com
4
5import os
6import sys
7
8image_file = sys.argv[1]
9
10size = os.path.getsize(image_file)
11pad_size = (((size - 1) >> 12) + 1) << 12
12open(image_file, 'ab').write(b'\xFF'*(pad_size - size))