【作者】 陈义钦； 覃团发； 陈俊江； 刘运毅；

【Author】 Chen Yiqin Qin Tuanfa Chen Junjiang Liu Yunyi (School of Computer and Electrical Information,Guangxi University,Nanning 530004,China)

【机构】 广西大学计算机与电子信息学院；

【摘要】 在充分研究分析嵌入式流媒体通信技术的基础上,本文提出一种具有低功耗,实时性及稳定性好的系统实现方案。分析了 freescale 公司推出的 i．MX21系列处理器 MC9328MX21在多媒体应用方面的特点,详细介绍使用 MC9328MX21在设计中的思路及方法。通过研究 MPEG-4视频数据压缩编码的特点,将开源的 Xvid 函数库和用于实现实时流媒体技术的 JRTPLIB 库相结合,实现了嵌入式流媒体该通信系统实时视频数据的采集、编码及传输等功能,该系统可广泛应用于远程监控系统、可视电话等领域。更多还原

【Abstract】 Based on the study embedded streaming media communication technologies,a scheme of streaming media communications is proposed which is low power consumption,real-time and good stability.Analyzing some characters of MC9328MX21 of i.MX21 series of freescale company in multimedia applications,the method and idea for using MC9328MX21 to design streaming media communications are introduced in detail.Through study the technology of video compress encode based on MPEG-4,combining the open source of Xvid function library with JRTPLIB function library,the embedded streaming media communication system realizes the real-time streaming media,real-time video capture,processing and transmission,it could be used widely in remote control system,video telephone and so on..更多还原