Справочник Пользователя для Polycom VMC 1000

Скачать
Страница из 82
Polycom, Inc. 
1
  
1
About the VMC 1000 
This chapter explains key concepts about the Polycom VMC 1000 appliance as 
part of the Polycom video conferencing solution.
This chapter contains the following sections:
About the Polycom VMC 1000
The Polycom VMC 1000 manages live and video-on-demand (VOD) content 
created by Polycom RSS devices and manages video streams created by other 
devices and uploaded to the Polycom VMC 1000. It provides scalable and 
reliable content access by means of streaming protocols to end users across the 
entire enterprise.
The Polycom VMC 1000 discovers new live and archived video calls recorded 
by RSS devices by periodically polling all registered servers for a list of live 
and archived calls. After each request, the Polycom VMC 1000 compares the 
current list with a list obtained by the previous request and discovers the 
difference between the two states (i.e. which live conferences and recorded 
files were added). 
The Polycom VMC 1000 uses this information to create assets (Content 
Repository items) and published events (Programs) to be accessed by end 
users (Content Owners, Site Administrators, and Viewers). The Polycom VMC 
1000 uses different time frames to query for live and recorded content - for 
example, it could query every 10 seconds for new live streams and every 60 
seconds for new recorded files.
Once a live stream from the RSS device is discovered, it is connected to an 
entry point (publishing point) on a standard Windows Media Server 9. 
The Polycom VMC 1000 only requires a single stream to be pulled from a 
recording and streaming server to enable hundreds of streams. The Polycom 
VMC 1000 publishes live event links on its Viewer Portal and redirects end 
users to the live streams from a streaming server.