Справочник Пользователя для ViewCast 4100

Advanced Operations 

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ViewCast 

Output tab 

Windows Media is both a storage format and a streaming format. In addition to the ability to output to a 
file, the Windows Media encoder can stream to a Windows Media Server. The settings for Windows 
Media encoder include the ability to set parameters for connecting and streaming to the server (Figure 
94). 

Some Windows Media Capture Profiles have pre-defined video resolutions and input selections. When 
you select a Windows Media Capture Profile, verify your current video and audio settings have not been 
modified. If they have been modified, simply change these settings back to their previous settings and 
click Submit. 

When streaming audio and video, there are two methods of delivery: 



 

Pull 

– Niagara 4100 begins to generate broadcast packets as soon as you start the encoding. 

However, it does not deliver the broadcast stream until Windows Media Server requests the 
stream. This method does not provide a secure connection to the server and should only be used if 
the encoder and server reside within the same network firewall. 



 

Push 

– Niagara 4100 maintains a secure connection to Windows Media Server. This connection 

allows Niagara 4100 to pass a user name and password to authenticate access to the server. 

To enable clients to pull the stream from Niagara 4100, set up a session and begin broadcasting directly 
from Niagara 4100. Clients (Windows Media servers or players) can connect to the stream at any time 
by using the following URL format: 



 

 (for Internet connections) 



 

 (for LAN connections) 

By default, Niagara 4100 supports up to 50 direct connections during a broadcast.