支持网络认证的NVD编著软件设计与实现

发布时间：2018-05-28 21:03

本文选题：网络认证 + 版权保护　；参考：《华中科技大学》2013年硕士论文

【摘要】：新一代红光高清视盘机（Next-Generation Versatile Disc，NVD）在网络化背景下推出网络认证系统（Internet Certification System，ICS），ICS编著软件是该系统的关键环节，提供制作节目光盘的应用软件环境，课题设计的编著软件包括光盘的版权保护和导航制作两部分内容。版权保护方面除了对节目常规加密外，设计一种以光盘和网络为节目信息载体、以密钥和部分节目内容为服务器管理对象的新型光盘版权保护技术改进方案，抽取节目视频编码层中部分关键内容，使得抽取后的节目无法正常播放，达到加强光盘版权保护的目的。版权保护方面主要包括抽取模块和后期加密模块，关键技术在于内容抽取算法的设计和实现，针对目前节目光盘中H.264的视频编码格式，在分析编码层数据结构基础上设计了合理的抽取算法，并使用FFmpeg开源软件实现该算法。测试结果表明设计的抽取算法能够有效地破坏视频质量，版权保护模块功能正常实现。导航文件提供播放时用户对光盘内容进行操作的接口，设计了导航制作软件提供可视化的图形界面，，一是结合导航规范提供对导航的支持，如杂志广告的支持、连网身份认证和样式模板等，二是操作功能上的完善，实现标尺、参考线、图形拖拽和动态预览等功能。导航制作方面包括坐标定位、编辑绘制、指令集生成、动态预览和导航文件生成等模块，关键技术在于结合导航语言和规范实现导航制作，以及利用有限状态机模型生成相应指令集，测试结果表明模块功能完善，生成的导航文件放置到光盘后能够正常实现导航功能。
[Abstract]:Next-Generation Versatile Disc (Next-Generation Versatile Disc) is the key link of the new generation red light high-definition video disk machine. It is the key link of the system to introduce the network authentication system (Certification system Versatile / ICS) under the background of network. It provides the application software environment for making program optical disk. The software includes copyright protection and navigation. In the aspect of copyright protection, in addition to the routine encryption of programs, a new type of optical disc copyright protection technology is designed, which takes optical disk and network as program information carrier and takes key and part of program content as the object of server management. Some key contents in the video coding layer are extracted, which makes the extracted programs unable to play normally, so as to enhance the copyright protection of optical discs. Copyright protection mainly includes extraction module and post-encryption module. The key technology lies in the design and implementation of content extraction algorithm. On the basis of analyzing the data structure of coding layer, a reasonable extraction algorithm is designed, and the algorithm is implemented with FFmpeg open source software. The test results show that the proposed extraction algorithm can effectively destroy the video quality and the function of copyright protection module is realized normally. The navigation file provides the interface for the user to operate on the CD content while playing, and designs the navigation making software to provide the visual graphical interface, one is to provide the navigation support, such as magazine advertisement support, in combination with the navigation specification. Network identity authentication and style template, the second is the improvement of the operation function, the realization of ruler, reference line, graphics drag-and-drop and dynamic preview and other functions. Navigation making includes coordinate positioning, editing and drawing, instruction set generation, dynamic preview and navigation file generation, etc. The key technology is to realize navigation making in combination with navigation language and specification. The model of finite state machine is used to generate the instruction set. The test results show that the function of the module is perfect and the navigation function can be realized normally after the generated navigation file is placed on the disc.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN946.5;TP309

【参考文献】