视频服务器

• Third , a single threading task paradigm is abstracted and has been applied to the designing of the media server for reducing the cost which multithreading switching brings , and a smoothing and non - blocking i / o system is also designed
  第三，抽象出单线程任务调度模型，将此模型应用于视频服务器设计，降低了多线程切换带来的额外开销；同时设计了与此模型配套使用的平滑非阻塞的i o系统。
• The technique of small or medium scale vod has matured , but there are some great challenges on the way towards vls - vod , including challenges to the existing video server architecture , service strategy , transmission and storing techniques
  中小规模vod系统在多年的发展之后，已趋于成熟，但在向大规模超大规模vod系统的迁移过程中，规模扩展对现有的视频服务器体系结构、存储、传输和服务策略等技术提出了巨大挑战。
• Vod system adopts the b / s ( brower / server ) model , deposits in the video server the multimedia resources including video , audio , animation , etc . users can interactively search and demand the information about video programs in the video server through the network
  视频点播系统( vodsystem ) ，采用b s ( browser server )模式，将图文、视音频素材存于视频服务器中，客户端可通过网络随时交互式地查询点播服务器中的媒体信息。
• On the whole , the development of video surveillance systems has experienced four stages : analog video surveillance systems , pc - based video surveillance systems , embedded system - based video surveillance systems and intelligent vision - based video surveillance systems
  视频监控系统的发展大体经历了本地模拟视频监控系统、基于pc的视频监控系统、基于嵌入式视频服务器的网络视频监控系统以及本文中要研究和实现的智能视频监控系统四个阶段。
• In current , our main product awt series includes day / night vision camera , zoom camera , ir camera , speed dome camera , network camera , network video server , digital embedded hard disk video recorder , pc hard disk video recorder and security and peripheral products
  目前主要的产品awt (艾维特)系列有:日夜两用型摄像机、一体化摄像机、红外日夜两用一体化摄像机、网络摄像机、网络视频服务器、数字嵌入式硬盘录像机、 pc式硬盘录像机以及安防周边配套产品。
• Because ground floor software is put already among windows2000 server , or may be downloaded from the website of microsoft free , so do n ' t need extra to invest in expensive video server software and some special - purpose hardware can offer multimedia teaching of high quality service
  由于底层软件在windows2000server中已经内置，或者可以免费从微软的网站下载，所以，不需要额外投资昂贵的视频服务器软件和某些专用的硬件就可以提供高质量的多媒体教学服务。
• Compared with traditional vod system , service on - demand is pushed toward the end of network , which can decrease demand of main network bandwidth when the system needs to cover the some large areas ; meanwhile , it is benefit to expansion of the system and control of programs
  当系统覆盖地域较大时，这种方式可以有效地降低系统对主干网络带宽的需求，同时也利于系统的扩展和节目管理。本文针对vod系统中视频服务器的瓶颈问题，提出了视频服务器负载均衡的方法。
• In this paper , the general work is to construct the home gateway and video server based on linux os . we mainly discuss how to improve the quality of vod service in the vod system architecture , and how to efficaciously transmit the independent video streams between server and client
  讨论在视频点播系统结构中，提高视频点播的服务质量，如何保证彼此独立的视频流，在服务器端和客户端之间合理、有效的传输，即保证在视频服务器与家庭网关之间的流媒体的服务质量( qos ) 。
• Compared with traditional concentrated vod system , it uses ordinary pc as video server , can provide fully mutual request se rvice , has good stretch and high radio of performance - price , improves the reliability and stability of system , and can meet the needs of video requests in various medium - scale , even large - scale network
  与传统的集中式视频点播系统相比，它使用普通pc作为视频服务器，可以向用户提供全交互式点播服务，具有良好的扩展性，极大地提高了系统的可靠性和稳定性，并具有较高的性价比，能满足目前各种中型、甚至大型网络环境的视频点播需求。
• The video collecting system with embedded video server becomes the focus of development . its advantages include small size , low power consumption , fast processing speed , good real - time property , stable performance , easy to install , no extra devices and no territory restriction
  而以嵌入式视频服务器为核心的视频采集系统成为了发展的重点,其既具有嵌入式系统体积小,功耗小,处理速度快,实时性好,性能稳定的特点,同时又具有安装方便,无需附加设备,无地域限制的优点。