boto3的等效功能

Question

ffmpeg_args = ( -v warning -f rawvideo -pixel_format bgr24 -video_size 544x320 -i - http://localhost:8090/fac.ffm ) blah blah | ffmpeg "${ffmpeg_args[@]}" 的等效代码块是什么？

以下功能正在使用boto3

boto2

这是我编写的函数，对吗？

def aws(serviceName, module=boto):
    conn = connections.get(serviceName)
    if conn is None:
        service = getattr(module, serviceName)
        conn = service.connect_to_region(region)
        connections[serviceName] = conn
    return conn