摘要
本文介绍了基于H.264算法的视频传输系统的实现方案。该方案采用目前最新的视频压缩标准——H.264作为视频编解码算法,i.MX27作为系统的中心处理器,嵌入式Linux作为操作系统,RTP/UDP作为网络传输协议,实现了视频实时的在网络上以流媒体格式的传输播放。系统运行结果表明:本课题研究的基于H.264视频编码算法的网络视频传输系统实现了可以实现高质量的视频信息传输效果(D1画质,屏幕分辨率为720*480,视频播放速率为30fps,最大码流为4Mbps)。除此之外,为了保证视频信息在传输过程中安全性,该系统设计方案还采取了软硬件结合的加密方式处理视频信息。
In this paper, an embedded Video Transmission System based on H.264 is proposed. In this system, the latest video compression standards-H.264 is used as video codec algorithm, the i.mx27 is used as the center processors of the system, embedded Linux is used as the operating system and RTP/UDP is used as the network transmission protocol. The paper introduces the design way and the frame of the system. The test results of the system show that the proposed system can support good quality transmission of the video information. The parameters with the transmission are D1, 720＊480, 30fps and 4Mbps. In addition, in order to ensure the security of the video information in the transmission, the system provides the encryption to the information in the process of com- pressing.
出处
《微计算机信息》
2009年第24期68-70,共3页
Control & Automation
基金
北京市教育委员会科技发展计划资助项目
