数字音像内容智能终端系统研究与设计

发布时间：2018-03-14 21:14

本文选题：数字音像内容管理　切入点：跨平台软件开发　出处：《电子科技大学》2008年硕士论文　论文类型：学位论文

【摘要】： 近年来,以互联网为传播介质,以数字化多媒体内容为主体的数字媒体产业在全球范围内快速崛起。它通过互联网传播数字音像内容,摆脱了传统音像产业对物理介质的依赖。这种新的消费模式正在逐渐改变人们娱乐休闲的方式。数字音像内容集成分发平台是科技部“十一五”国家科技支撑计划重大项目现代服务业共性技术支撑体系与应用示范工程关键课题,旨在建立一个基于Internet网络传输的正版数字音像内容管理发行平台。作为其重要组成部分,智能终端系统直接面向最终用户,管理和播放具有合法版权的数字音像内容。本文工作围绕智能终端系统的研究与设计,分为以下三个部分: 首先,分析了数字音像内容组织管理的需求现状,根据数字音像内容集成分发平台的要求,将数字音像内容分成了需要数字版权管理的节目和不需要数字版权管理的广告两种资源形式,分别设计了节目和广告的标准化组织形式,实现了对数字音像内容的描述信息和资源实体相结合的全面管理。设计了一套完整的节目管理播放流程以及广告与节目结合播放的管理调度方法。为了便于智能终端系统的运行维护,还构建了一套用户免操作的数字音像内容远程维护系统。其次,研究了支持数字版权保护的播放系统,比较分析了三种不同的音视频文件加解密方案,针对集成分发平台的设计要求,制定了智能终端系统的加解密方案。通过对现有播放器的研究与分析,实现了基于MPlayer的加密音视频文件播放器。该播放器可以同时支持加密和非加密音视频文件。最后,研究分析了跨平台软件开发面临的两个关键问题:程序设计方法和中文字符处理。以此为基础,设计实现了基于Qt程序库的跨平台的智能终端系统。在其中合理运用了多种设计模式来降低系统复杂度,进行了合理的模块划分,具有美观的图形用户界面,可以完成智能终端系统要求的各项功能。
[Abstract]:In recent years, the digital media industry, which takes the Internet as the communication medium and the digital multimedia content as the main body, has risen rapidly in the global scope. This new consumption pattern is gradually changing the way people play and leisure. The digital audio and video content integration and distribution platform is the key subject of the "11th Five-Year Plan" of the Ministry of Science and Technology, which is a major project of the modern service industry common technology support system and application demonstration project. The purpose of this paper is to establish a real digital audio and video content management and distribution platform based on Internet network. As an important part of the platform, the intelligent terminal system is directly oriented to end users. Managing and playing digital audio and video content with legal copyright. This paper focuses on the research and design of intelligent terminal system, which is divided into the following three parts:. First of all, it analyzes the demand of digital audio and video content organization and management, according to the requirements of digital audio and video content integration and distribution platform. The contents of digital audio and video are divided into two kinds of resource forms: programs that need digital rights management and advertisements that do not need digital rights management. The standardized organization forms of programs and advertisements are designed respectively. This paper realizes the overall management of the description information and resource entity of digital audio and video content, and designs a complete program management and broadcast process and a management and scheduling method of combining advertisement and program. In order to facilitate the intelligence, the paper designs a set of management and scheduling methods for program management and broadcast. Terminal system operation and maintenance, A user-free digital audio and video content remote maintenance system is also constructed. Secondly, the playback system supporting digital copyright protection is studied, and three different schemes of audio and video file encryption and decryption are compared and analyzed, aiming at the design requirements of integrated distribution platform. The encryption and decryption scheme of intelligent terminal system is established. Through the research and analysis of the existing players, the encrypted audio and video file player based on MPlayer is realized, which can support both encrypted and unencrypted audio and video files. Finally, two key problems in cross-platform software development are studied and analyzed: programming method and Chinese character processing. The intelligent terminal system based on QT library is designed and implemented, in which a variety of design patterns are reasonably used to reduce the complexity of the system, and a reasonable module partition is carried out, which has a beautiful graphical user interface. Can complete the intelligent terminal system requirements of the various functions.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2008
【分类号】：TP311.52

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