基于PXA-255的AVS_M实时视频服务器的设计  

Design of real-time video server based on AVS_M and PXA-255

作　　者：王蒙蒙[1] 段西强[2] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013 [2]泰山学院计算机科学系,山东泰安271000

出　　处：《计算机工程与设计》2009年第18期4184-4187,共4页Computer Engineering and Design

摘　　要：设计并实现了一款嵌入式实时视频服务器,该服务器是基于PXA-255处理器芯片,利用AVS_M编码技术和RTP/RTCP传输协议进行视频采集、编码和传输。介绍了多种方法在代码实现层次上分别对AVS_M编码算法和系统进行优化。实验结果表明,经过优化之后AVS_M的编码速度有了较明显的提高,能够达到实时性的要求,通过网络传输在客户端能得到较清晰的图像,可以满足视频应用的需要。A real-time video server is designed and realized, which is based on the platform of PXA-255, adopted AVSM video coding technology and RTP/RTCP transfer protocol to achieve the video capture, coding and transmission. Introduced many ways to optimize the AVS_M coding algorithms and system. The experiment shows that AVS_M, after optimized, could process real-time video compression, transmited it by network, and then client would achieve more stable and clear image and met the needs of video application.

关 键 词：AVS_M 多媒体通信 PXA-255 嵌入式视频服务器 代码优化 

分 类 号：TN919.81[电子电信—通信与信息系统]