文档介绍：苏州大学
硕士学位论文
基于FS7805的加密视频播放器的设计与实现
姓名:卢辉玲
申请学位级别:硕士
专业:软件工程
指导教师:姜晓峰
2010-10
基于 FS7805 的加密视频播放器的设计与实现中文摘要
基于 FS7805 的加密视频播放器的设计与实现
中文摘要
视频处理一直是计算机技术发展的重要领域。随着计算机性能的不断提高,视频
应用已经渗透到生活生产的各个方面。同时,随着网络的普及及其带宽的不断提高,
视频文件的传递和共享更加容易。因此如何防止一些特定用途的视频文件的非法传播
便成为了一个必须要解决的问题,在此情况下视频加密技术就应运而生。
对视频文件的处理包括视频压缩、加密、解密和解压缩等环节。本文首先介绍了
数字视频的基础知识,几种数字视频编码方法和标准。在此基础上探讨了几种视频加
密的方法,如全部加密、部分加密、置换算法和改变 Huffman 码表算法等,并对其优
点和缺点进行了评价。
论文课题研究和实现了一种以 FS7805 芯片为主控芯片、并结合万能播放器
Mplayer 的简便易行的嵌入式视频加密方法。论文对其具体实现过程中在硬件设计和
软件实现方面所采取的方法和取得的结果。
课题的研究对于拓展 FameG FS7805 芯片的应用领域具有一定促进作用,并且对
于进一步推进视频加密和传输在嵌入式系统的研究与应用提供了一定的参考。
关键词:数字视频,视频加密,FS7805,Mplayer

作者: 卢辉玲
指导教师:姜晓峰

I
Abstract The Design and Implement of FS7805 Encryption Video Frequency Player
The Design and Implement of FS7805 Encryption Video
Frequency Player
Abstract
Digital video processing has always been a major field in the development of
computer technology. With the unceasing promotion puter performance, digital
video has been used widely in life and industry. Meanwhile, , whose bandwidth
never stops widening, facilitates video file transferring & sharing. This brings a problem on
how to prevent certain video files from illegal transferring. The technology of digital video
encryption is to solve this problem.
The process of video files includes pression, encryption, decryption and
pression, Here we discuss the ABCs of digital video file, introduce several digital
video encoding methods and standards. Upon this, we present several video encryption
methods, such as Naive Algorithm, Selective Algorithm, Zigzag Permutation Algorithm,
etc. Then we evaluate these encryption methods.
This article discusses how to use FS7805 chip with universal player Mplayer
implement a tricky video enctyption algorithm. Aims at the design of the hardware circuit
and software of the system’s module design,
Research projects in the developing FameG FS7805 chip for the applications