// article · windows
FFMPEG 实现海康威视摄像头的 rtsp 流转 hls 流并在本地 Web 页面以及服务器 Web 页面实现直播效果
https://blog.csdn.net/cat_of_ming/article/details/120058450
http://t.zoukankan.com/badaoliumangqizhi-p-15522894.html
https://cloud.tencent.com/developer/article/2063513