Design of Java-Based MPEG-4 like System for Distance Education

• Main Authors: Chi-Wei Chin, 秦其巍
• Other Authors: Herng-Yow Chen
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/55276751640667401407

碩士 === 國立暨南國際大學 === 資訊管理學系 === 87 === MPEG (Moving Picture Experts Group) defines the standard of MPEG-1/MPEG-2 in frame-based video and audio compression, they can be used in entertainment with high quality video/audio. Distance learning is convenient and newly education way that through on Internet, but because of MPEG-1/MPEG-2 's huge datasize and limited bandwidth of Internet, we are hard to use MPEG to educate on Internet. The new spec - MPEG-4 is object-based functionalities (such as: media objects) different form MPEG-1/MPEG-2, and provides two way using by low bit rate and high bit rate. Low bit rate is very suitable used on Internet. MPEG-4 is an ISO/IEC standard being developed by MPEG. Java is a suitable programming language used on Internet, the Dynamic Loading property of Java applet can show the feature of MPEG-4 Object-Downloadable attributes. Besides, Sun Microsystems, Inc., Silicon Graphics Inc., and Intel Corporation develop an API JMF (Java Media Framework) that specifies a simple, unified architecture, messaging protocol, and programming interface for media playback. We try to use the property of MPEG-4 and Java on distance learning to make good the shortcoming of traditional learning and Web teaching. This thesis dedicate on Java key technology (Java 2D, Java 3D, Java Media Framework) and evaluate the possibility of implement MPEG-4 System. We define MSDL-like (MPEG-4 System Description Language) grammar for construct scenes and playback Media Object by JMF. The system provides teachers authoring a script in advance to construct MPEG-4 scenes, and students watch MPEG-4 like movie through Internet.