Directshow Applied Research On Distance Learning

Remote education has special advantage which can spread borad and provid excellent teaching resource for most people .And further more, with the technology of computer communication and Internet develop in high speed ,it gradually became a new education form which has a faster speed and more spread room. It will compose modern education with calssroom educaition ,broadcast education and TV education together. Remote video education is a important part of remote education,it realize audio/video intercourse between teacher and student on internet. After analyzing the status in quo and realize mode of our country's remote video education,this thesis put forward a remote video education solution base on DirectShow technology. It accomplishes the following work: 1. replacing costly professional equipment, using software to caputure,encode/decode and seize audio/video data.bringing forward total solution and designing in detail on interface layer and Filter Graph layer. 2. realizing the remote realtime play of audio/video data,the video on demand of teaching multimedia files. 3. finishing the arithmetic of detaching/compounding MPEG4 package on RTP protocol and get detailed information of media file in VOD.