嵌入式IPTV机顶盒流媒体播放器关键技术研究

发布时间：2018-04-12 23:36

本文选题：IPTV机顶盒 + 嵌入式Linux　；参考：《内蒙古科技大学》2012年硕士论文

【摘要】：随着信息产业的迅猛发展，广电网、电信网和互联网三网已经融合，产生了新型网络应用IPTV业务，，而通信和电子消费终端产品的快速发展，都促使这一业务日益壮大。 IPTV业务以互联网为基础，机顶盒为主要终端，为用户提供视频、点播、网页浏览、互动游戏等等业务。机顶盒是一个典型的嵌入式系统，其具有模拟/数字转换功能、图形图像的显示功能、音频和视频编解码的功能、流媒体传输控制功能等。消费者可以通过IPTV机顶盒在现有的电视机上体验IPTV提供的各种服务。与普通机顶盒相比IPTV机顶盒在显示系统方面有很大优势，使用IPTV显示系统的机顶盒可以实现终端客户和多媒体运营商的互动。本文正是基于上述背景，设计给出了IPTV机顶盒的软件平台和嵌入式的显示系统解决方案。硬件平台为天嵌有限公司的TQ2440开发板，其控制核心是400MHz的微处理器S3C2440AL，集成了4线电阻式触摸屏，具有不错的视频显示效果，软件平台使用最新的Linux2.6内核，图形界面类库选用挪威奇趣科技的针对嵌入式系统的开源Qt/Embedded库。本文实现的软件功能主要有Boot Loader和嵌入式Linux2.6.25.8进行裁剪后再移植，构建了嵌入式文件系统、分析和实现了网卡DM9000的驱动程序、Qt/Embedded类库的移植、图形界面Qt4平台的移植、嵌入式显示系统的研究设计。课题表明，本文实现的IPTV显示系统可以给终端用户提供流畅、清晰和直观的人机互动图形处理界面，有良好的可扩展性，能够满足不断变化的市场需求，具有广泛的应用前景。
[Abstract]:With the rapid development of information industry, radio and television networks, telecommunications networks and Internet three networks have been merged, resulting in a new type of network application IPTV services, and the rapid development of communications and electronic consumer terminal products, which have led to the growing business.IPTV service is based on the Internet, STB as the main terminal, providing users with video, on demand, web browsing, interactive games, and so on.STB is a typical embedded system, which has the functions of analog / digital conversion, graphics and image display, audio and video coding and decoding, streaming media transmission control and so on.Consumers can use the IPTV set-top box to experience the various services offered by IPTV on existing TV sets.Compared with ordinary set-top box, IPTV set-top box has a great advantage in display system. The set-top box of IPTV display system can realize the interaction between terminal customer and multimedia operator.Based on the above background, the software platform of IPTV set-top box and the solution of embedded display system are designed in this paper.The hardware platform is the TQ2440 development board of Tianji Co., Ltd., its control core is the 400MHz microprocessor S3C2440AL.The hardware platform integrates 4-wire resistive touch screen and has good video display effect. The software platform uses the latest Linux2.6 kernel.The graphical interface class library is open source Qt/Embedded library for embedded system.The software functions realized in this paper mainly include Boot Loader and embedded Linux2.6.25.8 to cut and then transplant, build embedded file system, analyze and realize the transplant of QT / embedded class library of DM9000 driver of network card, and transplant the Qt4 platform of graphical interface.Research and design of embedded display system.The project shows that the IPTV display system can provide users with smooth, clear and intuitive interface of human-computer interactive graphics processing, have good expansibility, can meet the changing market demand, and have a wide application prospect.
【学位授予单位】：内蒙古科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TN948.55

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