webrtc - webRTC 上的屏幕共享

Question

是否可以通过 webRTC 捕获桌面屏幕共享。我们知道它只是捕获浏览器选项卡上的屏幕，但是否可以捕获整个桌面屏幕，例如浏览计算机上的文件或打开和查看文件，例如pdf等..

Answer 1

目前，RTCWeb 实现(chrome 和 firefox)中仅提供“无状态”屏幕捕获。例如

• Install chrome extension然后尝试 this demo

上面的演示将简单地捕获“任何”打开的应用程序屏幕的屏幕。不过，这样的屏幕捕获API fails to capture全屏游戏应用程序的屏幕。

更多信息请参见此处:

• https://developer.chrome.com/extensions/desktopCapture (HTTPs+getUserMedia+postMessage)

Regarding remote desktop sharing from a web-browser, it has a pile more security risks associated with it compared to screen sharing. The UI/security aspects will be tough to deal with, and the feature will be very susceptible to social engineering -- phone call: "this is Google/Dell/Computer-Management; we've detected your machine has a virus on it; could you browse to and we'll assist you in removing it" -- etc. Ref