Streaming Media Supplement sa2150 and sa2250
36
Chapter 4 Understanding Media-IXT and WMT
The figures below illustrate WMT media streaming with no proxy cache present.
WMT streaming with Media-IXT performing proxy caching
WMT streaming with Media-IXT performing proxy caching can be based on these three nodes:
• a web (
HTTP
) server, where .html files reside that contain hyperlinks to the WMT metafiles (.asx,
.wax or .wvx files)
• a Windows Media server, where content resides in the form of files in WMT streaming formats:
.asf,
.wma or .wmv files
• a Media-IXT
Figure 4-2. WMT media streaming with no proxy cache present (beginning)
Figure 4-3. WMT media streaming with no proxy cache present (concluded)
3
1
2
3
The web browser sends a request to the HTTP server for a WMT metafile.
1
2
The web browser receives the metafile and sends it to Windows Media Player.
In the metafile script, Windows Media Player finds a pointer to the media content URL.
The HTTP server serves the WMT metafile to the web browser.
Client browser
with Windows
Media Player
HTTP
to Windows Media Player from browser
WMT metafile
Windows
Media Server
Web Server
MMS
4
udp
5
5
4
Client browser
with Windows
Media Player
Windows Media Player contacts Windows Media Server at the media content URL.
Windows Media Server streams content to Windows Media Player.
Windows
Media Server
Web Server