文档介绍：华中科技大学
硕士学位论文

姓名:邓珂
申请学位级别:硕士
专业:计算机系统结构
指导教师:鲁宏伟
2011-01-17
华中科技大学硕士学位论文
摘要
随着互联网和通讯技术的飞速发展,高质量视频的实时传输技术越来越受到人
们的关注,同时国家推广的“三网融合”技术也对高质量视频传输提出了更高的要
求。然而,目前视频传输解决方案受到终端计算能力和网络带宽的制约不能够很好
的实施这一方案。
国际电信联盟组织针对多媒体通信制定了一系列视频编码标准用于在有限的网
络带宽上进行有效地视频传输。目前,
力的行业标准,、压缩比例、数据包恢复丢失等方面超过了以
往的视频压缩标准,但同时也增加了算法的复杂性。
解码往往受到处理器的速度限制而无法满足对视频分辨率的要求,而在嵌入式领域
这一问题尤为突出。
软件共同完成视频的采集、编码和传输。
。系统开发基于包含
多媒体硬编解码器的S3C6410处理器的嵌入式开发平台,使用嵌入式Linux操作系统
和RTP/RTCP实时传输协议,
方案。方案主要包括视频采集模块、视频编码模块、视频传输模块、视频接收模块。
通过实验环境测试,视频传输方案能够有效的实现实时视频的网络传输,图像质
量、延时能够满足应用要求。

关键词:网络视频传输实时传输协议嵌入式操作系统视频压缩编码

I
华中科技大学硕士学位论文
Abstract
With the rapid development of munications technology, high quality
real-time video transmission technology is being paid more and more attention, and the
national promotion " integration" technology offers higher demands for high
quality video transmission. At present, however, video transmission solutions can not
work with high performance as being restricted by puting power work
bandwidth.
The international munication anization formulated a series of video
codec standards for munications effectively used in the limited bandwidth.
At present, is generally considered to be the most influential industry standards and
is much better than previous standards in the video quality, compression ratio, data
packets lost can’t meet the requirement of the video resolution for the speed of
processor using of S/W codec,especially for the filed of embeded system. The more
popular transport scheme is based on the use of H/W h. 264 codec and plish
software for video capture,codec and transmission .
Video real-time transmission using of H/W ,including S3C6410 based
embeded platform,Linux os and Real-time Transport Protocol. Designing and