Video enhancement script, supports all H5 video websites, such as: Bilibili, Douyin, Tencent Video, Youku, iQiyi, Xigua Video, YouTube, Weibo Video, Zhihu Video, Sohu Video, NetEase Open Course, Baidu network disk, Alibaba cloud disk, ted, instagram, twitter, etc. Full shortcut key control, support: double-speed playback/accelerated playback, video screenshots, picture-in-picture, full-screen web pages, adjusting brightness, saturation, contrast
如此好的辅助脚本，向作者表示感谢，感谢您的辛勤劳动。
如果有时间的话，不知能不能添加2个功能：
1.镜像画面.
2.调整宽高比，如4:3、16:9.