Windows Media servie Overview

Windows Media Service Overview (1) 　 I. Introduction Windows Media Service is a set of Media Server software developed by Microsoft. It is installed by default on Windows 2000 Server and Windows 2000 Advanced Server, the netshow user and netshowservice user groups are automatically created in the system. Windows Media Service provides all the functions required by the complete media server, and comes with the Windows Media Encoder encoder, which can convert normal media files into Windows Media Streaming Media format files --- ASF. Windows Media Service can run under the special MMS Streaming Media Protocol. Even a narrowband network can also easily access media files. Windows Media Service Installation: Run: Choose Start> program> Administrative Tools> Windows Media to open the windows media management interface: Windows Media Encoder By default, Windows Media Encoder will be installed with Windows Media Service. Open Windows Media in the Start menu to see the interface: Basic terms for Windows Media Service The following is Microsoft's official explanation of the terms used in the Windows Media Service Section. Unicast: point-to-point connection between the client and the server. "Point-to-point" means that each client receives a remote stream from the server. The unicast stream is sent only when the client sends a request. Multicast: enables content streams transmitted over the multicast network. All clients in the network share the same stream. VOD connection: an active connection between the client and the server. In the VOD connection, you can select a content item to initialize the client connection. The content is transmitted from the server to the client as an ASF stream. If the file has been indexed, you can start, stop, back, fast forward, or pause the stream. The VOD Connection provides the maximum convection control, but this method quickly uses up network bandwidth because each client connects to the server. Broadcast: the user passively receives a stream. In the broadcast process, the client receives streams, but the control flow is not allowed. For example, the user cannot pause, fast forward, or backward the stream. There are two types of broadcasts: unicast and multicast. Both are passive. The "Distribution of on-demand broadcast tickets" is used to provide. ASF files. "Broadcast single broadcast distribution" is used to provide live ASF streams.

Supplement Date:09:42:11

Windows Media Service Overview (2)   　 Ii. unicast Create an on-demand unicast Station On-demand unicast sites are equivalent to creating a media file server, which is mainly for static media files. By default, Windows Media Service has created a media file storage path, which is located in asfroot under the system root zone. You can put the media file in this directory, after installing Windows Media Service, you can use Windows Media Player to connect to a local server to access the sample media file of Windows Media Service: Path of the input sample media file Of course, the asfroot path can be changed. Windows Media Service also supports the creation of multiple On-Demand unicast sites. Note that when creating an on-demand unicast site, the default media file storage path of the site is marked as <Home>. Create an on-demand unicast site with an alias of MP3 After the site is created, visitors only need to enter the MMS: // server/(alias, home can be omitted)/media file to access the media files on the Media Server. Of course, windows Media Service can limit the bandwidth and number of visitors. Create a broadcast unicast site In unicast mode, you can create a unicast broadcast station. The media source of these broadcast stations can be Windows Media Encoder or remote Windows Media Service sites. The following describes how to create an on-site broadcast station in Unicast mode: New broadcast station Set the path and port of the media source-encoder. the alias must be set properly because the ACCESS format is MMS: // server IP Address/alias. The Broadcasting Station has been established Visitors only need to enter MMS: // server/Benson to access the broadcasting station. Of course, the setting of the broadcasting station must be effective. Use an encoder to send a media stream to a broadcasting station: Open the encoder Windows Media Encoder that comes with Windows Media Service in the Start Menu. After opening the file, select new, and then select Custom mode to create the file: Select a capturing device. Here, only the capturing audio device is selected. Select the actual bandwidth Click Finish to complete the encoder settings. The encoder and server are connected successfully. Connect to the Broadcasting Station Now we have used unicast to create a broadcast station. The above example is to create a remote Windows Media Encoder broadcast station. We will continue to introduce the detailed usage of Windows Media Encoder in the future.

Supplement Date:09:43:12

Windows Media Service Overview (III)   Iii. Multicast For Windows Media Service multicast, you can specify dynamic or static remote media files or directly connect to Windows Media Encoder. The following example uses the live broadcast multicast site as an example: Configuration server: Create a multicast broadcast station using the wizard Enter the name of the site. Visitors can access the site through MMS: // server IP Address/multicast broadcast site name. Set the program name. One multicast station can create multiple programs, and one program can establish or connect multiple streams. Select the encoder for Windows. Enter the URL of the encoder. The connection uses the msbd protocol. Next, the wizard will ask if you want to save the information, keep following the next step, and finally choose to close it. The server multicast broadcast station is successfully established to return information when the remote encoder is not enabled. Configure Windows Media Encoder: As with unicast configuration, you can configure Windows Media Encoder through simple settings. Select the audio output format of the Encoder Sent to Windows Media Server Specify the port. Make sure that the port is idle when you set the port. The message button of Windows Media Encoder turns green, indicating that the connection is normal. The connection information of the Windows Media Server is displayed.