1. Windows Media Technologies CIS454 GROUP 5 Wen tsyi Lee Feng Jiang Gene Li David Lisberg

2. Modules n Introduction n The Windows Media Encoder n Encoding Techniques n The Windows Media Server n Server Security Issues n Logging and Server Performance Information n Windows Media Performance Tool n Windows Media Load Simulator n Multicasting n Load Balancing n Introduction

3. Introduction n Windows Media Technologies is an innovative digital media platform that provides end users with unmatched audio and video quality. n Windows Media Technologies also provides the emerging streaming media industry with the tools to develop powerful applications, to create high- quality multimedia content, and to reliably distribute their content.

4. Features of Windows Media n Highest quality audio n Fast video encoding n Windows Media On-Demand Producer n Intelligent Streaming n Scalable to Full Screen

5. Features of Windows Media (Continue) n Advanced Compression Technologies n Easy Internet Radio Distribution n Integrated with other Microsoft Products n Digital Rights Management n Microsoft® PowerPoint® 2000 Presentation Broadcasting

6. Windows Media Components n Microsoft® Windows Media™ Tools u Windows Multimedia formats WAV & AVE, Apple QuickTime format, Internet music format MP3, Advanced Streaming Format (ASF) u Windows Media™ Encode u Windows Media™ Author n Microsoft® Windows Media™ Services u Microsoft® Windows NT™ Server n Microsoft® Windows Media™ Player

7. Windows Media Services n Windows Media Unicast service n Windows Media Station service n Windows Media Program service n Windows Media Monitor service

8. Windows Media Player n Play audio and video in most popular formats n Read and perform commands scripted in an.asx (ASF Stream Redirector) file n Receive script commands, markers, and metadata, such as clip title, author, and copyright n Render Windows Media broadcasts and on- demand content for viewing live news updates on the Internet n Play movie clips and music videos on a Web site

9. Windows Media Rights Manager n Packaging n Distribution n License acquisition n Piracy and security

10. The Microsoft Media Service Protocol n Windows Media Technologies uses an application –level protocol called Microsoft Media Server (MMS) n UDP (User Datagram Protocol) u Connectionless, transport-layer protocol, ideal for real-time media n TCP (Transmission Control Protocol) u Dominant Internet transport-layer protocol, firewall problem n HTTP (Hypertext Transfer Protocol) u Application-layer protocol, not designed for streaming media, but has no firewall problem

11. The Windows Media Encoder n Window Media Encoder compresses digitized media files that can be AVI, MP3, WAV format, and converts them to the ASF format used by Windows Media Player.

12. Computer Hardware Configurations n Selecting a CPU u At least Pentium II u Recommended for Pentium III n Adding Memory u 64 megabytes if optimal for encoding u How to make sure the system isn’t paging to disk u How to check available memory and add Memory\Available Bytes Counter n Adding Disk Drives u Can be bottleneck for encoding rate u SCSI – encoding speeds of 300 to 500 Kbps u Consider RAID Level 0 disk arrays for faster rates

13. Computer Hardware Configurations – Con’t n Selecting an Operating System u Windows Media Encoder can run on both Windows 2000 Professional and Windows 2000 Server u Professional is recommended n Selecting a Video Capture Card u Consult the “Windows Media Hardware Providers” Web Page u http://www.microsoft.com/Windows/windows media/ http://www.microsoft.com/Windows/windows media/ u Selecting a Sound Card u Consult the Windows Hardware Compatibility List for Sound Card u http://www.microsoft.com/hcl/default.asp http://www.microsoft.com/hcl/default.asp

14. Encoding Techniques n Encoding Multiple Audio Streams u Example: encoding different radio stations to be broadcast online u CPU - Pentium III u Sound Card - single slot with multiple ports n Encoding Multi-Bandwidth Video Streams u Multi-Data rate Encoding u Intelligent Transmission u Video Playback Enhancement Filter n Automated Encoding u Means the encoder starts automatically when the system boots and someone logs one u How to create shortcut

15. Performance Tuning the Server Disabling extraneous services Minimizing memory Setting registry keys Using the latest NIC driver

16. Disabling Extraneous Services License logging Print spooler Microsoft Internet Information Service -If IIS must run on same machine, disable content indexer and FTP service In general, shut down all services not needed

17. Setting Registry Keys MaxConnectionPerSecondKey Default is 25 For high-end server it should be 75-100 MaxUserPort Uppermost port for outbound connections Values are between 1024 and 5000 Typical setting is OxFFFE

18. Using Latest NIC Drivers Significant increases can be seen from updating to current drivers

19. Authentication with Unicast Transmissions Anonymous (default) Basic authentication

20. Anonymous Authentication Default account name is Netshow Services Access can be denied to specific files by denying access to Netshow Services Basic Authentication Client is prompted for a plain text user name and password

21. Windows Media Rights Manager Songs, videos, and other media are delivered encrypted End users need a separate license to decrypt

22. Logging and Server Performance Information The Windows Media Administrator Log Files The Windows Media Performance Tool The Windows Media Load Simulator

23. Windows Media Administrator Logs Logs information about events and about clients connected to unicast publishing points Log shows client’s ID, IP address, port number, status, and name of file being streamed Disabled by default

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25. Windows Media Performance Tool Part of Windows 2000 administrative tools Includes counters relevant to streaming media Late Reads counter is very important-if value is not zero, disk response is deteriorating

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27. Windows Media Load Simulator Included in Windows 2000 resource kit Runs on a client machine and test the capacity of the media server by simulating a large number of requests for streaming media Can automatically alert administrators to performance deterioration

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29. Multicasting n Is a one-to-many form of transmission that sends data to a group of users. n Save network bandwidth

30. n.nsc file n Configuration file containing all the information, such as IP address and port number, that is necessary for joining a multicast transmission. n Distribution of the.nsc file is controlled by administrator, stops unauthorized users form listening to a transmission. Defining a Station

31. Configuring a Multicast Station n Use QuickStart Wizard n Create a new station Source:

32. Specify a program and Stream Name Source:

33. Specify a Source for the Stream Object Source:

34. Specify a Source URL for the Stream Object Source:

35. Specify Stream Format Information Source:

36. Specify Path for.nsc file Source:

37. Station information file URL Source:

38. Select Publishing method Source:

39. Ready to Publish Source:

40. Troubleshooting Multicast Transmissions n Checking the files n Checking Statistics n Keeping Track of IGMP Versions n Isolating the Problem n The Network Monitor

41. Checking the Files n.asf and.nsc files are accessible, with no errors. n.asf files must be specified n Use Windows Media Administrator, Export, to configure.asf and.nsc files

42. Check Statistics n Protocal n Packets Rocovered n Packets Lost Source:

43. Keeping Track of IGMP Versions Operating SystemVersion of IGMP Windows 95Version 1 Windows NT® 4.0 with SP3 or earlierVersion 1 Windows 98Version 2 Windows NT 4.0 with SP4 or SP5Version 2 Windows 2000Version 2

44. Isolating the Problem Source:

45. The Network Monitor n Available with System Management Server n Allows user to look a packets on the Network n Capture filters

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47. Summary n Microsoft Windows Media™ Technologies is distributed as part of the Microsoft Windows 2000 operating system. It allows you to create, distribute, and play streaming media files. n This presentation has demonstrated why someone would want to use Windows Media Server and how Windows Media Server can be implemented.

48. References n http://www.microsoft.com/WINDOWS2000/library/operations/strea mingmedia/wmtbest.asp http://www.microsoft.com/WINDOWS2000/library/operations/strea mingmedia/wmtbest.asp n http://msdn.microsoft.com/workshop/imedia/windowsmedia/serve r/admin.asp http://msdn.microsoft.com/workshop/imedia/windowsmedia/serve r/admin.asp n http://www.602pro.com/lite/support/mediaplayer.html http://www.602pro.com/lite/support/mediaplayer.html n http://www.inktomi.com/new/press/windows.html http://www.inktomi.com/new/press/windows.html