Webcam Preview Chrome 插件, crx 扩展下载

                    
Shows web camera preview on top of any https site.
Webcamera Preview - extension that allows you to bring interest to your presentations to a new level.

At the moment, a participant who shares his screen through hangouts does not stream the web camera with his image to the viewers. The extension solves this problem.

Features:
The extension shows the image from the web camera over the current tab.
Second click on the plugin icon toggles the broadcast.
Implemented a direct and mirror image streaming.
The full screen sites like Google Slides are supported.
Options page and context menu allow to adjust extension’s 
  position in corners, 
  frame type like rectangle, oval, circle, 
  mirror mode,
  tracking of active tab, 
  tracking of the full screen mode.