吉林大学学报(信息科学版)

• 论文 • 上一篇    下一篇

基于H.264的无线局域视频通信终端的研发

马玉, 沈龙梅, 李小龙, 宋占伟   

  1. 吉林大学 电子科学与工程学院, 长春 130012
  • 收稿日期:2013-03-25 出版日期:2013-09-24 发布日期:2014-04-04
  • 作者简介:马玉(1989—), 女, 黑龙江齐齐哈尔人, 吉林大学硕士研究生, 主要从事嵌入式网络终端研究, (Tel)86-15948771976(E-mail)mysunshinejlu@163.com; 宋占伟(1962—), 男, 长春人, 吉林大学教授, 硕士生导师, 主要从事嵌入式系统研究, (Tel)86-13504473223(E-mail)songzw@jlu.edu.cn。
  • 基金资助:

    吉林省科技支撑计划重点基金资助项目(20100314)

Research of Wireless Video Communication Terminal Based on H.264

MA Yu, SHEN Long-mei, LI Xiao-long, SONG Zhan-wei   

  1. College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2013-03-25 Online:2013-09-24 Published:2014-04-04

摘要:

为满足实时视频通信系统的连续性和传输速率, 提出对视频数据进行H.264编码并通过流媒体方式进行无线传输的方案。系统采用S3C6410内部自带的硬件编解码模块MFC(Multi Format Codec)进行H.264标准的硬编码, 并深入研究了H.264视频数据基于实时传输协议(RTP: Real-time Transport Protocol)的打包方式及网络传输方法, 最终通过Wi-Fi网络发送到接收端, 实现了C/S架构下的H.264视频传输。测试结果表明, 该系统满足实时视频通信的要求, 硬编码的帧率达到30帧/s, 同时具有压缩比高、 传输稳定等优点。

关键词: 嵌入式系统, RTP协议, H.264标准的硬编码, Wi-Fi

Abstract:

In order to meet the requirements of realtime video communication system, a new plan encoding the video data with H.264 and wireless transmission by streaming media technique was designed. To improve encoding speed, the system adopts S3C6410 own internal hardware coding module MFC (Multi Format Codec). We make a further research of H.264 video packet method and network transmission method based on RTP (Real-time Transport Protocol) protocol, finally by sending data to the receiver through Wi-Fi network H.264 video transmission based on C/S architecture is achieved. The test results show that the system meet the requirements of real-time video communications, the framerate of hard-coding is 30 frame/s with advantages of high proportion of video compression ratio and transmisson stability.

Key words: embedded system, real-time transport protocol (RTP), H.264 hard-coding, Wi-Fi

中图分类号: 

  • TN929