【作者】 刘川；

【导师】 张笑燕；

【作者基本信息】 北京邮电大学 ， 计算机科学与技术， 2013， 硕士

【摘要】 在三网融合的大环境下,移动互联网的主要参与者——手机终端逐渐得到了大众的关注。手机媒体具有传播速度快、互动性好、移动性强等特点,近年来得到了快速发展,具有广阔的发展前景,基于流媒体的手机视频播放系统正是其中一员。移动互联网在手机媒体的带动下也在不断发展。随着移动通信技术的不断发展,智能手机以及相关产业拥有巨大的商业价值,它正在开创移动通信发展的新一页,并且对人们的日常生活产生深远影响。本文研究了流媒体传输的相关协议,对目前常用的音视频格式以及其对应的打包封装算法进行了整理,在已有适配网关的基础之上提出了一种手机视频播放系统的解决方案。此方案使得对于手机视频播放系统的创新成为可能：这种手机视频播放系统无需维护大量存储视频文件的,服务器,实时转换视频网站的音频流和视频流,效率将大大提高。本文从服务端和客户端分别研究并实现了各个技术难题对应的解决方案,主要包括系统的体系结构、多媒体适配网关和客户端的设计与开发。在系统开发完成后,本文还总结了该系统的优势和不足。全文旨在讨论C/S框架下手机视频播放系统建设的解决方案,希望这一尝试能为此类系统的开发者多一些启示,并为手机视频播放系统的实现提供有力的支持。更多还原

【Abstract】 With the fusion of the three main telecommunication networks, mobile phone terminal, which is the main participants of the mobile Internet, has gradually obtained the public attention. The feature of mobile media includes high speed, great interaction and mobility. The development of mobile stream media has taken off, which gives mobile stream media a bright future. The video broadcast system for mobile phones is one case of the development of mobile stream media. The development of mobile media has also supported the mobile Internet with more users and applications. With the continuous development of the mobile communication technology, smart phones and related industries have huge commercial value, and they are opening a new page in the development of mobile communications, also having made our life different.This paper includes study of streaming media transmission protocol, study of audio and video formats and a solution to the construction of the video broadcast system for mobile phones. This solution has made the innovation of video system possible, as the system converts real-time audio and video streams from the media source to the user instead of maintaining several servers to restore files. The structure of this paper focus on the server side and client side of the system, as well as other technical problems the writer met, such as the design of the system structure, the multimedia adaptive gateway and development of the client application. The advantages and disadvantages of this system are discussed in this paper, too. This paper aims at working out a solution to the construction of video broadcast system for mobile phones based on C/S structure. This paper will also provide strong support to the implementation of the video broadcast system for mobile phones.更多还原