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When pushing a stream from the encoder, you must specify the Windows Media server to which you want to stream and the broadcast publishing point (either new or existing) you want to stream through. On the Windows Media server, you have a number of options for configuring a publishing point, including setting limits on the number of players that can view the stream, controlling access to content, and setting up logging. If you have a configuration that you want to use repeatedly, you can add a broadcast publishing point on the server, configure it to meet your needs, and then copy the settings from that publishing point each time you push a stream to the server. For more information about configuring broadcast publishing points, see Windows Media Services Help. Push distribution is only available with Windows Media Services 9 Series in Windows .NET Server 2003.
Content can be delivered from a Windows Media server either as a multicast or a unicast stream.
If you are planning to deliver content as a multicast stream from the server, you must create and distribute an announcement before you begin encoding. An announcement is the means by which you communicate that your content is available to players. You can use the Multicast Announcement Wizard in the encoder to create the announcement. Or, alternatively, you can create the announcement on the server. Creating the announcement on the encoder requires that you have access permission to the Windows Media Services service through the distributed version of Component Object Model (DCOM). If you make any changes to the session configuration after you have created the announcement, you must create another announcement before you begin encoding.
To push a stream to a Windows Media server, the WMS HTTP Server Control Protocol plug-in must be enabled on the server. In addition, you must have write access permissions on the server through the WMS Publishing Points ACL Authorization plug-in. You must also have create access permissions for the plug-in if you want to add the publishing point from the encoder rather than from the server. The permissions must be set at both at the server level and at the publishing point level. To configure the plug-in, you must have access to the Windows Media Services service through DCOM.
Local administrators on the server automatically have both write and create access permissions on the server.
When you begin encoding, the encoder initiates the connection with the server.
You can use the New Session Wizard or the broadcast quick start to push to a Windows Media server, or you can set up a push session on the Properties panel.
For more information about setting up a multicast or unicast stream from a Windows Media server, see Windows Media Services Help.