基于JMF 的远程教学系统的设计与实现

辽宁石油化工大学学报 ›› 2005, Vol. 25 ›› Issue (2): 74-77.

基于JMF 的远程教学系统的设计与实现

赵新慧, 李文超

辽宁石油化工大学信息工程学院, 辽宁抚顺113001

收稿日期:2004-09-21 出版日期:2005-06-20 发布日期:2017-04-18
作者简介:赵新慧(1973 -), 男, 山东平度市, 讲师, 硕士。

Design and Implementation of Remote Teaching Sof tw are Based on JMF

School of In formation Engineering , Liaoning University of Petroleum & Chemical Technology ,
Fushun Liaoning 113001 , P .R .China

Received:2004-09-21 Published:2005-06-20 Online:2017-04-18

摘要/Abstract

摘要： 　远程教学系统的技术指标包括音频和视频的清晰度和连续性、传输的实时性以及对传输带宽的自适应性等, 要实现这些指标, 音频和视频数据的采集和压缩、数据的传输和传输速率的反馈控制以及数据的接收和播放是关键的技术。介绍了Java 媒体框架应用编程接口JMF 的结构特点, 阐述了远程教学系统的工作原理和关键技术, 给出了远程教学系统中音频和视频数据的采集和压缩、数据的传输和传输速率的反馈控制以及数据的接收和播放的具体实现方法, 详细介绍了基于JMF 下的软件的具体实现方法。

关键词: 　远程教学, 　Java 媒体框架, 　实时传输协议

Abstract:

　 The technical measures of remote teaching software include articulation , continuity , real -time transmission of audio and video frequency and self -adaptability to the bandwidth .To realize the target , key techniques involve audio and video data acquisition and compression, feedback control of data transfer and transfer rate , data receiving and broadcasting .The characteristics of API of Java Media Framework (JMF)were introduced.The principle and key technique were presented.The implementation method of audio and video data acquisition and compression, feedback control of data transfer and transfer rate , data receiving and broadcasting was given .The software design method based on JMF was described in detail.

Key words: Remote teaching , Java media framework , Real-time transpor t protocol

赵新慧, 李文超. 基于JMF 的远程教学系统的设计与实现[J]. 辽宁石油化工大学学报, 2005, 25(2): 74-77.

ZHAO Xin -hui,LI Wen -chao. Design and Implementation of Remote Teaching Sof tw are Based on JMF[J]. Journal of Liaoning Petrochemical University, 2005, 25(2): 74-77.