视频点播软件系统的设计与实现

发布时间：2018-03-23 22:43

本文选题：NGOD2.0　切入点：VOD视频点播　出处：《电子科技大学》2014年硕士论文

【摘要】：在数字电视整体平移进程中,交互式操作将越来越适应用户操作需求。VOD视频点播系统的普及、应用能够为运营商带来巨大收益,并有效减少用户流失,在与电信IPTV的竞争中占据优势。广电运营商以VOD视频点播为重要手段,采用更加先进的VOD技术平台,始终需要不断丰富产品种类和节目资源,并对其配以更加行之有效的营销策略,来争取更大的利益。本文参考NGOD2.0部分构架,设计了基于IPQAM的全新VOD视频点播方案。该方案结合条件收系统(KingVonCAS)和用户管理系统,并配套了EPG系统、数据广播系统、股票系统和VOD系统,形成了拥有自主知识产权的数字电视系统整体解决方案。VOD视频点播系统构架主要包含:内容收录子系统、用户接入子系统、视频服务器、时移服务器、后台管理子系统、IPQAM、STB机顶盒等几部分。本文主要内容包括:1.阐述NGOD2.0构架基础理论,其组件分类及接口定义等;2.基于IPQAM的VOD视频点播系统设计概述及重点部分包括控制中心,视频服务器设计详细介绍;3.基于IPQAM的VOD视频点播系统的测试用例,系统、功能特点介绍和系统总结。通过该设计最终完成的VOD视频点播系统具备了实用性,先进性,安全性,可控性等优势。该设计版本VOD系统采用基于IP网络+IPQAM的低成本解决方案,主干网利用IP网络进行内容分发,分前端通过现有HFC网络下发媒体流,突破网络带宽瓶颈,用户请求信息通过IP网络由双向机顶盒回传。系统模块化设计,良好的开放性和扩展性,支持系统功能和规模平滑扩展,支持服务器集中部署和分布式部署,支持MPEG-2、MPEG-4、H.264、AVS等编码标准。系统开发遵循国际和国家标准,如ISO、ITU-T、MPEG、DVB-C等。提供标准开放的协议接口,便于第三方机顶盒厂家移植。
[Abstract]:In the whole translation process of digital television, interactive operation will be more and more adapt to the popularity of user demand.VOD VOD system, the application can bring huge profits to the operators, and effectively reduce the loss of users, and in telecom IPTV take advantage of the competition. Radio and television operators in VOD video on demand as an important means, using VOD technology platform more advanced, always need to constantly enrich the product range and program resources, and the match with more effective marketing strategies, to strive for greater interest in this paper. Part NGOD2.0 framework, design a new VOD VOD system based on IPQAM. This scheme combined the condition receiving system (KingVonCAS) and user management system, and supporting EPG system, data broadcast system, stock system and VOD system, the formation of the overall solution of.VOD video on demand system of digital TV system with independent intellectual property rights The framework mainly includes: content collection subsystem, user access subsystem, video server, time shifting server, backstage management subsystem, IPQAM, STB set-top boxes and other parts. The main contents of this paper include: 1. based on the NGOD2.0 theory, the component classification and interface definition; 2. IPQAM based VOD video on demand overview of system design and key part comprises a control center, the video server design is introduced in detail; the 3. test case, VOD VOD system based on IPQAM system, summarizes the features of introduction and system. Through the VOD video on demand system of the design finished with practical, advanced, safety, controllability and other advantages. Low cost IP network based on +IPQAM program designed by this version of the VOD system, the backbone network using IP content distribution, front end through the existing HFC network under the streaming media, network bandwidth bottle breakthrough The neck, the user request information through the IP network set-top box is composed of a two-way feedback system. The modular design, good openness and scalability, support system function and scale of smooth expansion, support server centralized deployment and distributed deployment, support MPEG-2, MPEG-4, H.264, AVS encoding standard. The system is developed according to international and national standards, such as ISO, ITU-T, MPEG, DVB-C and so on. Provide open standard protocol interface for third party set-top box manufacturers transplantation.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.64

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