标准编号：ISO/IEC 29341-4-3:2008
中文名称：信息技术 通用即插即用（UPnP）设备结构 第4-3部分：音频视频设备控制协议 2级 媒体服务器设备
英文名称：Information technology — UPnP Device Architecture — Part 4-3: Audio Video Device Control Protocol - Level 2 - Media Server Device
发布日期：2008-11
标准范围
This device specification is compliant with the UPnP Device Architecture version 1.0.It defines a device type referred to herein as MediaServer.The MediaServer specification defines a general-purpose device that can be used toinstantiate any Consumer Electronics (CE) device that provides AV content (forexample, media) to other UPnP devices on the home network. It is based on theUPnP AV Architecture Framework (described in another document). It exposes itscontent via the ContentDirectory service (refer to the ContentDirectory servicespecification for details). The MediaServer MAY also provide functionality to recordcontent using the ScheduledRecording service (refer to the ScheduledRecordingservice specification). As such, the MediaServer can handle any specific type ofmedia, any data format, and transfer protocol.Example instances of a MediaServer include traditional devices such as VCRs, CDPlayers, DVD Players, audio-tape players, still-image cameras, camcorders, radios,TV Tuners, and set-top boxes. Additional examples of a MediaServer also includenew digital devices such as MP3 servers, PVRs, and Home MediaServers such asthe PC. Although these devices contain diverse (AV) content in one form or another,the MediaServer (via the ContentDirectory service) is able to expose this content tothe home network in a uniform and consistent manner. This ability allows theMediaServer to instantiate traditional single-function devices as well as more recentmulti-function devices such as VCR-DVD players and the general purpose HomeMediaServer, which contains a wide variety of content such as MPEG2 video, CDaudio, MP3 and/or WMA audio, JPEG images, etc.
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