基于JMF的音视频实时交互及存储的具体实现

Implementation of Audio-visual Bilateral Transmission and Saving with JMF

针对目前多媒体远程教学及实时监控系统大部分是信息单向传输,缺乏用户间的多媒体信息实时交互功能及多媒体数据存储海量的弊端,文章提供了一种用JMF的数据克隆、数据轨道控制、流媒体的存储及传输等技术来实现网络音、视频数据双向传输及由用户选择和控制将音视频数据以MOV文件格式存储到本地硬盘的方案,并介绍了实现方法。系统软、硬件成本低,且数据量小,易于网络传输和存储。

The disadvantages of traditional multimedia remote teaching and real-time monitoring are that the information transmitted is unidirectional, and that students receive information passively from Intemet or lntranet, which may seriously affect their learning initiative and efficiency. In addition, because multimedia data needs a large space to store, this limits the speed of data transmission on the Internet, and influences the implementation of software development in audio and video bilateral transmission. This article provides a solution to the above disadvantages by adding a chat room featuring audio and visual contact to the traditional multimedia remote teaching websites. The system implements the function of the audio and video bilateral transmission with JMF and RTP on the lnternet. In addition, users can save the video and audio to their hard disk in the movie file form if they want to and they can use it at their disposal. This system has the advantages of low cost for software and hardware, and has less data storage requirement than traditional DV does, It can transmit and store data easily.