基于android的H264视频无线传输系统的设计与实现
发布时间：2018-09-01 19:59
【摘要】：随着智能手机在人们生活中的广泛应用,一些过去人们不敢想的梦想变成现实。科技的发展无疑是“中国梦”的重要动力,而智能手机在科技发展中无疑也扮演着重要的角色。在过去短短的几年里,智能手机的信息处理能力以及移动网络传输速率的都大幅提升。智能手机终端利用移动网络进行视频传输成为倍受人们青睐的研究对象。本文设计并实现了一种实用性较高的无线视频传输系统。 本文首先介绍了这一课题的相关背景以及研究现状,介于智能手机市场的主流,采用Android智能手机作为视频数据的采集端,并阐述了最新版本的Android系统框架以及功能特点。此外,本文还对当前视频的编解码技术进行了研究,选择了H.264视频压缩编码方式,同时深入剖析了H.264技术细节。本文用C#语言编写的一个简单平台程序作为播放端,因此也对C#语言和. NET Framework平台进行了介绍。 本文在具体的设计实现过程中,采用Android系统的MediaRecorder类实现实时视频的采集,并利用LocalSocket实现数据流的获取；直接在Android采集端通过分析提取SPS和PPS的信息,获得原始的H.264实时视频流；按照RTP/UDP协议对视频流进行打包发送；在上位机终端平台上,通过移植VLC播放器,并进行SDP会话的方式实现对视频的实时播放,完成一套基于android的H.264视频无线传输系统的实现。 最后经过实际的测试,该系统比较稳定,方便使用。同时,由于成本低廉,该系统可以广泛应用,能满足多种不同的需求。
[Abstract]:With the widespread use of smartphones in people's lives, some dreams that people didn't think of in the past came true. The development of science and technology is undoubtedly an important driving force for Chinese Dream, and the smartphone undoubtedly plays an important role in the development of science and technology. In the past few short years, the information processing ability of the smartphone and the speed of the mobile network have been greatly improved. Smart phone terminal using mobile network for video transmission has become a popular research object. A practical wireless video transmission system is designed and implemented in this paper. Firstly, this paper introduces the background and research status of this topic. In the mainstream of the smartphone market, Android smart phone is used as the video data acquisition terminal, and the latest version of the Android system framework and function characteristics are described. In addition, this paper also studies the current video coding and decoding technology, chooses the H.264 video compression coding method, and deeply analyzes the H.264 technology details. This paper uses C # language to write a simple platform program as the playback end, so also on the C # language and. The NET Framework platform is introduced. In the process of design and implementation, the MediaRecorder class of Android system is used to realize the real-time video capture, and the data stream is acquired by using LocalSocket, and the original H. 264 real-time video stream is obtained by analyzing and extracting the information of SPS and PPS at the Android collecting end. The video stream is packaged and sent according to RTP/UDP protocol, and the real-time video playback is realized by transplanting VLC player and SDP session on the host computer terminal platform, and a wireless transmission system of H.264 video based on android is completed. Finally, after the actual test, the system is stable and easy to use. At the same time, because of the low cost, the system can be widely used to meet a variety of needs.
【学位授予单位】：安徽大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN919.81
本文编号：2218191
[Abstract]:With the widespread use of smartphones in people's lives, some dreams that people didn't think of in the past came true. The development of science and technology is undoubtedly an important driving force for Chinese Dream, and the smartphone undoubtedly plays an important role in the development of science and technology. In the past few short years, the information processing ability of the smartphone and the speed of the mobile network have been greatly improved. Smart phone terminal using mobile network for video transmission has become a popular research object. A practical wireless video transmission system is designed and implemented in this paper. Firstly, this paper introduces the background and research status of this topic. In the mainstream of the smartphone market, Android smart phone is used as the video data acquisition terminal, and the latest version of the Android system framework and function characteristics are described. In addition, this paper also studies the current video coding and decoding technology, chooses the H.264 video compression coding method, and deeply analyzes the H.264 technology details. This paper uses C # language to write a simple platform program as the playback end, so also on the C # language and. The NET Framework platform is introduced. In the process of design and implementation, the MediaRecorder class of Android system is used to realize the real-time video capture, and the data stream is acquired by using LocalSocket, and the original H. 264 real-time video stream is obtained by analyzing and extracting the information of SPS and PPS at the Android collecting end. The video stream is packaged and sent according to RTP/UDP protocol, and the real-time video playback is realized by transplanting VLC player and SDP session on the host computer terminal platform, and a wireless transmission system of H.264 video based on android is completed. Finally, after the actual test, the system is stable and easy to use. At the same time, because of the low cost, the system can be widely used to meet a variety of needs.
【学位授予单位】：安徽大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN919.81
【参考文献】
相关期刊论文 前10条
1 曹晓芳;王超;李杰;;一种基于Android智能手机的远程视频监控的设计[J];电子器件;2011年06期
2 李校林;刘利权;张杰;;基于RTP的H.264视频流实时打包传输的研究[J];计算机工程与科学;2012年05期
3 卢曦;刘德明;朱积砚;徐贤;邱自成;;RTP协议在嵌入式网络处理器中的设计与实现[J];计算机与数字工程;2006年11期
4 葛艳红;李文锋;刘旭光;;基于RTP流媒体实时传输的Java实现[J];计算机与现代化;2007年02期
5 魏崇毓;张菲菲;;基于Android平台的视频监控系统设计[J];计算机工程;2012年14期
6 韩国强;;浅谈智能视频监控技术及其主要应用[J];计算机与网络;2014年02期
7 余腊生;刘勇;;基于网络的智能视频监控系统的设计与实现[J];计算机工程与设计;2009年16期
8 余磊;张根栋;张尧;赵永政;;H.264中CABAC算法与CAVLC算法比较和改进[J];中国新通信;2009年11期
9 张志明;周晋;陈震;李军;;基于网络编码的对等网流媒体传输模型和算法[J];软件学报;2012年03期
10 程恳;陈长清;张鹏宇;涂博;;一个嵌入式视频监控系统的设计与实现[J];微计算机信息;2008年14期
，本文编号：2218191
本文链接：https://www.wllwen.com/kejilunwen/wltx/2218191.html
