Stream URL:
Switch to MediaDataSource
h265地址：
https://zhuguibiao.github.io/flv.js/assets/265.flv
h264地址：
https://zhuguibiao.github.io/flv.js/assets/264.flv
使用
flv-data
每帧自定义scriptData，同步视频里面画面的demo
isLive
withCredentials
hasAudio
hasVideo
MediaDataSource JsonURL:
Switch to URL
Your browser is too old which doesn't support HTML5 video.
Load
Start
Pause
Destroy
SeekTo
scriptData：