基于MPEG-4视频标准数字视频录像机的设计与实现  

Design and Realization of Digital Video Recorder Based on MPEG-4 Video Standard

作　　者：张石[1] 齐晓龙[1] 鲍喜荣[1] 佘黎煌[1] 

机构地区：[1]东北大学生信息学院,辽宁沈阳110044

出　　处：《现代电子技术》2008年第20期51-54,58,共5页Modern Electronics Technique

摘　　要：国内外许多公司都在开发有关MPEG-4视频标准的产品,最具代表意义的即是数字视频录像机(DVR)。为了缩短开发周期,这里介绍基于嵌入式Linux操作系统,应用专用音视频编解码芯片AT2042实现数字视频录像机功能,该系统实现MPEG-4视频标准高级框架的编解码器,并在此基础上添加数字硬盘的功能,例如编码存储、解码播放、快进、快退和暂停等功能。最后给出系统的实际运行的测试结果。该系统已实现对视频数据的编、解码,且实现MPEG-4/MPEG-2/MPEG-1 H.263视频标准,并已成为成型产品推向市场。Many companies are developing products about MPEG- 4 video standard, Digital Video Recorder（DVR） is the most. In order to cut dowm development time, applying the special video CODE chip AT2042, which realizes function for digital video recorder based on embedded Linux operating system. The system has some functions such as play, pause, recorder and so on. The practical testing results of the system are given,the coding/decoding for video data and video standard such as MPEG - 4/MPEG - 2/MPEG - 1 H. 263.

关 键 词：MPEG-4 AT2042 LINUX DVR 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]