| Linux下基于MPEG4IP的实时授课同步技术和实现方法 |
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| 引用本文： | 袁珽,吴杰,张世永.Linux下基于MPEG4IP的实时授课同步技术和实现方法[J].计算机应用与软件,2007,24(10):7-9,21. |
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| 作者姓名： | 袁珽 吴杰 张世永 |
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| 作者单位： | 复旦大学计算机与信息技术系,上海200433 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 从多媒体通信中的关键技术媒体同步技术入手,提出了一种以GNU Linux为运行平台的实时授课系统的同步技术和实现方法.该授课系统以MPEG4IP流媒体处理平台为基础,实现了教师授课视音频和授课屏幕数据三种媒体从采集、传输到回放的同步功能.围绕上述三个方面进行展开,重点阐述了同步的实现机制和开发技术.最后,总结了研究工作,并阐述了下一步的研究改进方向.
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| 关 键 词： | Linux MPEG4IP QoS 同步 实时授课 Linux 实时授课系统 媒体同步技术 方法 TECHNOLOGY SYNCHRONIZATION TEACHING METHOD OF 研究改进方向 工作 开发技术 机制 阐述 重点 展开 功能 传输 种媒体 数据 屏幕 |
| 修稿时间： | 2005-10-12 |
AN IMPLEMENTATION METHOD OF THE LINUX-MPEG4IP-BASED REAL-TIME TEACHING SYNCHRONIZATION TECHNOLOGY |
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| Yuan Ting,Wu Jie,Zhang Shiyong.AN IMPLEMENTATION METHOD OF THE LINUX-MPEG4IP-BASED REAL-TIME TEACHING SYNCHRONIZATION TECHNOLOGY[J].Computer Applications and Software,2007,24(10):7-9,21. |
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| Authors: | Yuan Ting Wu Jie Zhang Shiyong |
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| Affiliation: | Department of Computing and Information Technology, Fudan University, Shanghai 200433, China |
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| Abstract: | From the perspective of multimedia communications synchronization technology, a real-time teaching synchronization technology and its implementation method are introduced and deployed under the Linux-based real-time teaching system. The system is based on MPEG4IP streaming media development kits to realize a series of functions,including capturing, transferring and simultaneously playing back of the teaching audio, video and screenshot data. According to these three functions, the main implementation mechanism and development method of the multimedia synchronization technology are described. Finally, a summary of the relative research work is given and the further technological improvement direction is pointed out. |
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| Keywords: | Linux MPEG4IP QoS Synchronization Real-time teaching |
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