这是一个linux环境下的开源屏幕录制软件，对试验教学有很好的帮助-This is an environment of open source linux screen recording software, the test has a good help teaching

视频通话软件 在linux下，用gtk和gstreamer开发 从camera采集数据到传送，测试ok-Video call software in linux, using gtk and gstreamer developed to collect data transmitted from the camera, tested ok