Jitsi是一个SFU开源框架，由Atlassian维护，被集成到HipChat中。Github上的介绍如下：
Jitsi Videobridge is an XMPP server component that allows for multiuser video communication. Unlike the expensive dedicated hardware videobridges, Jitsi Videobridge does not mix the video channels into a composite video stream, but only relays the received video channels to all call participants. Therefore, while it does need to run on a server with good network bandwidth, CPU horsepower is not that critical for performance.
里面的几个关键点是：
里面的几个关键点是：
- XMPP server component -被设计为处理XMPP信号流，如果需要处理其他信号，还是算了吧
- does not mix the video channels-Jitsi不会解析媒体流细节，仅能处理流整体
- only relays the received video-它是个SFU
总的来说，Jitsi是一个处理XMPP信号流的SFU，适用于SIP/XMPP视频通话，会议，聊天，桌面共享，文件传输。如果你不需要SFU或者使用其他信号协议，最好还是使用其他项目。但由于Jitsi项目的简单明了，很多外包供应商很喜欢使用Jitsi，将它集成到自己的项目案例当中。
