Identify the format or formats of the content by either
identifying the source file or files to be streamed or by
identifying the appropriate stream format file from Windows Media
Encoder. The encoder system administrator can provide you with the
stream format file.
All the stream formats used in your multicast session must be
idenitfied either by locating the Windows Media file or by locating
the stream format file provided by the encoder. To identify the
stream formats do the following:
Click Add to open the Add Stream Formats dialog
In the Location of content text box, type the path or
browse to the stream format file (if you are streaming content from
an encoder) or to the source file or files (if you are not
streaming from an encoder).
Select multiple files by using ctrl-click in the Browse
window or by clicking Add after each file is selected. Once
all of the files have been added click OK.
The selected files are displayed in the list on the Stream
Formats page. If any have been inadvertently added, click
Remove to remove them from the list.
Stream formats contain information a player needs to decode a
stream, including codecs, bit
rates, and frame sizes. If your content was encoded
using different codecs, bit rates, frame sizes, and so on, ensure
that you add each type of content to the stream format list. If you
need to change the list of stream formats after creating an
announcement for a multicast stream, you can run the announcement
wizard again to create a new multicast information file. You are
not required to create a new announcement.
Click Remove to delete a stream format from the list.
Multicast information files must include all the
stream formats used by your content. If the stream format is not
listed in the stream format file, clients cannot access the
multicast stream. If clients access your content through a manually
or dynamically generated server-side playlist, ensure that the
multicast information file includes each stream format used.
Multicast streaming and the WMS Multicast Data
Writer plug-in are available only if Windows Media Services 9
Series is running on the following editions of the operating
system: Windows Server 2003, Enterprise Edition and Windows Server
2003, Datacenter Edition. If you are running Windows Server 2003,
Standard Edition, these features are not supported.