The Web Media Streaming Technique Application In The Real Time Interactive Teaching Live Broadcast

As the computer hardware and the broadband web technique quickly developing,the web streaming media technique comes with the tide of fashion and advances.Because web streaming media has the characteristic of vivid information and punctual broadcast,it naturally becomes a new topic of research in teaching, and there are some products.Web steaming media technique application in the real time interactive teaching live broadcast is mainly a set pattern for studying separating with teaching,which aims to solve the problem lacking teching resource.This paper involves two parts about the web streaming media technique application in teaching.The one is online teaching broadcast system that would be given a basic introduction;another is real time interactive system that would be given a detail analysis.Firstly this paper summarizes every modules' functions,interfaces and coordinational work principle. Secondly every modules' internal composition. Lastly the troubles or difficties and some solvations.Online teaching broadcast system mainly covers the streaming media capture, the streaming media broadcast ,the streaming media display, teacher computer desktop capture and synchronization, media encoder SDK and DirectShow programing technique,etc.Real time interactive system is the key point at this paper.Modules composition: audio and video capture, audio and video show, audio and video encoder_decoder and net transport. It'l show every modules functions , interface and inner construction from data flowing figure. Through work and study, I provide some optimizing methods for corresponding technique,which include audio and video streaming flowing control,P2p link technique for IPV4, database share technique,ActiveX and web page corresponding ,windows media format SDK file writing technique.Because the techniques must not have a homologous module(some one have many modules;some one is a part of a module),it' writed as a solo chapter.At end,it refers to some difficulties at work and study,which include the selection of desktop capture choices, the synchronization of broadcast and inter ,the status certification.