def gif():
    up = upyun.UpYun('servername', 'username', 'password', timeout=30, endpoint=upyun.ED_AUTO)
    source = '/BBB/h264.mp4' #视频路径
    tasks = [
        {
            'type': 'video', #视频类型
             "avopts":"/ss/00:02:00/es/00:03:00", #开始时间和结束时间
             "save_as":"/BBB/test.webp" #保存路径，根据后缀保存为对应的格式文件
        }
    ]
    notify_url = 'http://httpbin.org/post' #回调地址
    print(up.pretreat(tasks, source, notify_url))

print(gif())