Design And Implement Of Classroomrecording And Broadcasting System

With the rapid advance of education information construction in our country,the campus network and multimedia teaching are becoming more and more popular.At the same time,network technology and streaming technology are developing,and the networking of the classroom has become the inevitable trend of future development.Various schools have started to purchase the system and apply it to the classroom,which can be streamed live and recorded.But because the current classroom recorded system are mostly server level recorded workstation,and the price is very expensive,for some,the backward rural schools in remote areas,a large number of procurement and popularization.This paper designs and implements a classroom video system for this problem.The system consists of classroom video hosting,streaming media server and web client.Classroom video host is based on the embedded Linux platform,using H.264 as video compression standard,AAC as audio compression standard,RTMP as streaming media transmission protocol,realizing the collection of audio and video signal,compression and network transmission,etc.Combined with the streaming and web client,the streaming and on-demand functions of the classroom are completed.This system combines the embedded hardware system with the Linux system,with its characteristics of open source,free and powerful extension function,the classroom video broadcasting system is low cost.Joined the network visual control and convenient recorded the use and management of personnel and management personnel,save the cost and improved the use efficiency,expand the application range of digital learning resources;promote the construction of digital campus.