Content Settings - Polycom RealPresence 4000 Administrator's Manual

Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator's Guide

Content Settings

The Content channel can transmit one of the following modes:
•
•
•
•
AVC CP Content Setting
For Graphics, Hi-res Graphics and Live Video, the highest common Content bit rate is
calculated for the conference each time an endpoint connects. Therefore, if an endpoint
connects to an ongoing conference at a lower bit rate than the current bit rate, the Content
bit rate for the current conference is re-calculated and decreased.
Bit rate allocation by the MCU is dynamic during the conference and when the Content
channel closes, the video bit rate of the People conference is restored to its maximum.
During a conference the MCU will not permit an endpoint to increase its bit rate, it can
however change its Content resolution. The RMX can decrease the allocated Content bit rate
during a conference.
The following table summarizes the bit rate allocated to the Content channel from the video
channel in each of the Content Settings according to the conference line rate:
Table 4-3
Content Bit Rate Allocation per Conference Line Rate (kbps)
Content
Settings
64
128
96
Graphics
Hi Resolution
Graphics
Live Video
Customized
Content Rate
4-8
Graphics – for standard graphics. This is the default mode in AVC conferences and the
only supported mode for SVC conferences.
Hi-res Graphics (AVC CP Only) – requiring a higher bit rate, for high quality display or
highly detailed graphics.
Live Video (AVC CP Only) – highest bit rate, for video clips or live video display.
Customized Content Rate (AVC CP Only) - that allows manual definition of the
Conference Content Rate.
Decision Matrix - Bit Rate Allocation to Content Channel per Conference Line Rate
256 384 512
64 64 128 128
64 128 192 256
64 128 256 384
The Content Bit Rate is selected from a menu in the Content Video Definition pane.
See "Selecting a Customized Content Rate in AVC CP Conferences" on page 4-15.
768 1024 1472
832 1152 1728
256 256 256
384 384 512
512 768 768
1920 2048 4096
256 256 256
768 768 1536
1152 1152 1536
6144
1536
1536
1536
Polycom, Inc.