查询词典 video server

Firstly, the thesis introduced the development of VOD, the background and meaning of the program, then the author introduced the associated technology, mainly including the feature of multimedia, video compression technology and the protocols SCTP and RTP. Considering the ambulant of host , fluctuation of bandwidth,high error rate data in wireless networks ,the author proposed some QoS strategy in the wireless networks such as RTP/SCTP protocol stack , connection control of the server, two buffers in the client end point.,TFC congestion control algorithms ,etc. Based these strategies, the team members gives the software and hardware solution of the wireless video-on-demand system and gives the main modules design of the software system. The system adopted the C/S structure including two parts: server and client ,using the Mpeg-2 which is apporiate for networks as the supported format. The thesis emphatically researches on the video-serving module of the server and the sink module, player module of client.

本文首先介绍了视频点播系统的发展现状、课题的研究背景和意义；接着对课题的相关技术进行概述主要包括了多媒体特点，压缩技术，传输协议SCTP以及RTP；针对无线环境的节点移动性，带宽波动性，数据错误率高等三大特点，作者研究设计了无线环境下的QoS策略：RTP/SCTP协议栈，服务器准入控制机制，客户端双缓冲区，TFRC拥塞控制机制等；在这些策略的基础上设计了系统的软硬件解决方案，并对软件体系结构的主要模块进行了设计，整个视频点播系统采用C/S结构，由服务器，客户端2个部分组成，使用适合网络传输的流媒体格式Mpeg-2作为系统支持的格式，文中重点研究了服务器的视频服务模块以及客户端的接收模块和播放器模块，并利用线程池技术对系统进行实现。

Application of media gateway technology, launched sobe First Class Service for multimedia conversion equipment - media server, thus the birth of a number of unique personality-related devices, such as using a variety of video and audio IO interface board video and audio media server for a wide range of media format conversion of documents between the high-performance media server.

应用媒体网关技术，索贝推出了一类用于多媒体转换服务的设备――媒体服务器，由此催生出一些具有独特个性的相关设备，如采用多种视音频IO接口板卡的视音频媒体服务器、用于多种媒体格式之间高效转换的文件媒体服务器。

It concretely construes the situation of Wuyi University's campus network, and comes to a conclusion of the design programming of the live video system based on the campus network. It construes the application need of the equipment, including digital video camera, digital eidt tape recorder, video non-linear edit computer, video live workstation, video promulgating server, etc.

具体分析了五邑大学校园网的网络情况，给出了基于校园网的视频直播系统的设计规划，分析了系统的设备需求，包括数字摄录机、数字编辑录放机、视频非线性编辑计算机、视频直播工作站、视频发布服务器等设备。

Video server sends a RSVP message to reserve resource for client, and the system calculates and analyses QoS parameters using control information of RTP/RTCP packets and ICMP Echo request message, and controls the transmission grade by corresponding strategy to ensure network QoS, which enhances the system reaction to network condition and stabilizes the throughput and solves the problems of data transmission and using bandwidth fairly between multicast data and other kind of data when network is congestible and unstable.

整个模型系统主要由视频服务器、路由节点和客户端构成，通过RSVP协议进行资源预留协商，并在传输过程中利用RTP/RTCP包中携带的控制信息结合ICMP Echo请求报文提取QoS参数，对其进行分析判断，采用相应策略对传输级别进行实时控制，保障了网络QoS，提高了系统对网络状况的反应速度，降低了传输速率的波动性，较好解决了网络拥塞和不稳定时数据的有效传输以及与其他数据流公平占用带宽的问题。

When we designed the system, we considered some key factors such as the system must deal with and store a great deal video and audio data, the capability of the hard disk in the server and client, hi the part of video compression, we choose the currently MPEG-4 video constringent card to complete the collecting and compression of the video and audio signals .

在论文研究与实用系统设计中，充分关注到大量视音频数据的处理、存储以及服务器和远程客户端的硬盘容量等关键因素，视音频压缩采用了最新的MPEG-4视音频压缩卡进行视音频信息的采集和压缩。

This caching policy makes good use of the characteristic of the Dynamic Batched Patching algorithm; the results of simulation have proved thatthis caching policy can obtain a high Byte Hit Ratio, that is, this caching policy can decrease the requirement of video server I/O bandwidth even in the context of efficient multicast system.

该策略充分利用了第三章中提出的多播传输机制的优点，即使在这种高效传输机制下，还可以获得较高的Byte Hit Ratio，也就是说本策略对减少服务器I/O带宽的消耗有着明显的效果。

Not only can companies configure their load balancers to route requests based on server use, but requests can also be routed based on server content such as video, audio or text.

各公司不仅要依据服务器的使用把负荷平衡器配置给路由请求，而且也能依据服务器上的内容给请求分配路由。

Not only can companies configure their load balancers to route requests based on server use, but requests can also be routed based on server content such as video,''.

各公司不仅要依据服务器的使用把负荷平衡器配置给路由请求，而且也能依据服务器上的内容

The program is working to develop an online graphic modeling system, and using Flash/Flex technology to set up a multimedia cooperation environment, joining the text-chat and Audio/Video services.

此系统基于Flex，Flash Media Server和J2EE等多项技术，区别于一般的桌面聊天或画图工具，以网站的形式呈现，可以作为联想集团的信息服务产品绑定在出售的电子商品中，定位于高端用户，满足商业性，专业性，易用性等需求。

Dedicated Micros of Chantilly, Virginia, has introduced the DV-IP HD video server, which was developed specifically for security applications requiring megapixel network cameras and high-definition displays.

Dedicated Micros日前推出DV-IP HD高清视频服务器，这是专为安全应用兆像素的网络摄像头和高清晰显示器设计的。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了