cli.py 文件源码

def dump():
    parser = argparse.ArgumentParser(description='Dump all the boxes from an MP4 file')
    parser.add_argument("input_file", type=argparse.FileType("rb"), metavar="FILE", help="Path to the MP4 file to open")

    args = parser.parse_args()

    fd = args.input_file
    fd.seek(0, io.SEEK_END)
    eof = fd.tell()
    fd.seek(0)

    while fd.tell() < eof:
        box = Box.parse_stream(fd)
        print(box)