it计算机]citrix解决方案说明

it计算机]citrix解决方案说明内容摘要：

HDX MediaStream和HDX Adaptive Orchestration什么关系。 HDX Adaptive Orchestration的SmartRendering特性能智能的判断当前的网络带宽情况，同时还能判断客户端是否能够进行播放。 3.Windows包含的解码器Format TypeWindows XP ProfessionalWindows 2000 ProfessionalWindows 98WindowsMillenniumDIVX VideoNeeds codecs(Does not play bydefault)Needs codecs (Does not play by default)Needs codecs (Does not play by default)Needs codecs (Does not play by default)XVID VideoNeeds codecs\ (Doesn’t play by default)Needs codecs (Does not play by default)Needs codecs (Does not play by default)Not SupportedMPEG1 VideoPlays by defaultPlays by defaultPlays by defaultPlays by defaultMPEG4 V1 VideoPlays by defaultPlays by defaultPlays by defaultPlays by defaultMPEG 4 V2 VideoPlays by defaultPlays by defaultPlays by defaultPlays by defaultMPEG1 Layer3 AudioNeeds codecs(Does not play bydefault)Needs codecs (Does not play by default)Needs codecs (Does not play by default)Needs codecs (Does not play by default)MPG VideoPlays by defaultPlays by defaultPlays by defaultPlays by defaultAC3 AudioNeeds codecs(Does not play bydefault)Needs codecs (Does not play by default)Needs codecs (Does not play by default)Not SupportedWMA AudioPlays by defaultPlays by defaultPlays by defaultPlays by defaultMP3 AudioPlays by defaultPlays by defaultPlays by defaultPlays by default4.媒体播放器软件Windows Media Player , , and RealPlayer Version 8, Version 105.HDX MediaStream支持的媒体格式Media Type(Encoding Format)File Format (File Extension)WindowsMediaPlayerDirectShow / DMOBasedPlayersRealPlayerQuickTimePlayerDIVX VideoAVIMPEGMPGASFSSSXXVID VideoSSSXMicrosoft Video 1SSSXMPEG1 VideoSSSXMPEG4 VideoSSSXIndeo Interactive VideoSSSXMPEG1 AudioSSSXAC3 AudioSSSXFraunhofer MPEG Layer3 CodecSSSXMP3MP3S*SXXWMAWMAS*SXXWMVWMVS*SXXFlashFLVXXXXReal MediaRMXXXXQuickTimeMOVXXXXS Supported through HDX MediaStream.X Not supported through HDX MediaStream.* Not yet supported on Vista virtual desktops (as of XenDesktop 3 February 2009 release).其他注意事项：Citrix推荐客户端设备尽量安装最新的微软DX软件；Citrix推荐管理员将服务器端的Windows Media Player尽量升级到最新的版本；Q3：如何调整HDX MediaStream Windows Media Redirection SmartRendering ThresholdA：可以参考How to Configure HDX MediaStream Windows Media Redirection SmartRendering Threshold我们都知道XD4可以智能的判断网络带宽以决定是否启用HDX MediaStream Windows Media Redirection，那么这个带宽的值可以改动吗。 XD4默认的带宽值是500K/S（bits），如果是看高清电影这个值可能不够，所以需要修改。 Set the bandwidth threshold (in kilobits per second) on the VDA in the following registry key: [HKLM\SOFTWARE\Citrix\HdxMediastream\MinimumBandwidth]On 64bit platforms, the registry path is : [HKLM\SOFTWARE\Wow6432Node\Citrix\HdxMediastream\MinimumBandwidth]Q4：如果必须是由服务器来播放视频，服务器有什么优化的办法吗。 A：请参考CTX124516 How to Optimize HDX MediaStream ServerRendered Video总结来说，可以采用下面几个方面来进行调优：1.Enable and configure Progressive Display.2.Adjust the maximum frame rate as appropriate.3.Optimize the audio experience.4.Allocate adequate CPU resources to the virtual desktop.5.Validate the configuration using the HDX Monitor.还可以参考博客的文章：+HDX+MediaStream+serverrendered+multimedia+deliveryTuning HDX MediaStream serverrendered multimedia delivery那么如何才能够实现客户端的多媒体播放功能呢。 其实只有三个小技巧：配置渐进式显示（Progressive Display）以压缩运动的图像；当准备交付视频内容给远程用户时使用Branch Repeater；使用最新的高清解码器；渐进式显示是当服务器呈现多媒体技术时的一个主要技术亮点。 除了对图像和医学格式图片的强大处理能力外，他对视频也有非常大的作用。 他能识别出来运动做的图像（例如视频播放时）然后采用更加激进的压缩算法。 渐进式显示和XD4中的Dynamic Frame Rate Capping协同工作给低带宽下的连接提供更好的显示效果。 LAN：当然无所谓，带宽足够；T1（）：在控制台配置Image Acceleration Policy使用High Compression：Very High Compression第三部分：HDX MediaStream Flash RedirectionQ1：HDX MediaStream for Flash只支持IE浏览器吗。 A：是的。 因为这个功能要使用ActiveX插件，目前只限于IE才可以。 对于其他浏览器，例如Firefox和Safari用的是另外的浏览器插件。 Q2：那些OS支持HDX MediaStream for Flash。 A：Windows32 operating systems (2003, 2008,Windows XP/SP3,Vista,Win7) – are all fully supported for using HDX MediaStream for Flash.MAC Operating System (Snow Leopard) – is currently not supported for HDX MediaStream for Flash.WinCE – Currently has no support for HDX MediaStream for Flash (only up to ICA client version ).Linux thin devices – Currently have no support for HDX MediaStream for Flash (scheduled for 2011).Mobile Devices (IPhone, IPod Touch, Android, Blackberry, and Windows Mobile) – There is currently no support for these mobile devices to use the HDX MediaStream for Flash feature.不用担心，对那些不能利用HDX MediaStream for Flash功能的客户端仍然可以使用服务器端的SpeedFlash来改进HDX Flash media的观看。 Q3：Wyse支持吗HDX MediaStream for Flash content fetching。 A：不支持。 Wyse使用Progressive Display (server rendered) for multimedia in general. That being said, configuring the HDX Flash settings won39。 t make of a difference since there is no Flash player on the client device.Q4：你必须了解的几个关于HDX MediaStream for Flash的基本概念：Serverside rendering–这就是传统的技术，Flash内容通过VDA方式展现；Clientside rendering–这就是HDX MediaStream for Flash干的活，Flash内容由客户端的Flash播放器负责下载播放；Serverside content fetching–该特性需要专门配置才能实现，而且必须启用“clientside rendering”。 在这种模式下，Flash内容的文件由XA服务器去下载，然后转发给客户端的Flash播放器。 缺省状态下，客户端的Flash播放器是直接从网上下载Flash的。 启用HDX MediaStream for Flash模式后会大幅度减轻带宽的消耗，因为此时是由客户端直接下载播放Flash的，声音和图像都不是由XA Server传递过来的。 当然，如果当前的环境不能实现HDX MediaStream for Flash，系统会自动回退到服务器播放模式。 Q5：HDX MediaStream Flash Redirection和HDX MediaStream一个概念吗。 A：不是，这是两个单独的概念。 禁用Flash redirection不会影响media player redirection。 Q6：如何在XA Server上部署HDX MediaStream for Flash。 A：CTX124190 How to Deploy and Configure HDX MediaStream for Flash总结来说：1.客户端和服务器安装最新的Adobe Flash Player2.客户端安装最新的Plugin；3.安装XA5 FP2（windows2003），XA5 FP3（Windows 2008），XA6（Windows2008R2）4.安装Hotfix Rollup Pack 05 (or later) on the XenApp 5.安装XenApp5_FP2_Enabler. (位于License folder on the Feature Pack 2光盘) from Windows 2008 Feature Pack 3.6.安装HDX Media Stream for Flash ponent ().安装Microsoft hotfix KB956572 on any Windows 2003 server7.配置策略模板：、另外推荐一些其他可能会用到的知识点：CTX120455 Understanding Citrix HDX Technology for Optimizing the Branch OfficeCTX125235 Citrix Online Plugin for WindowsCTX104912 Troubleshooting the HDX MediaStream (SpeedScreen Multimedia Acceleration) FeatureCTX120342 160。