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Polycom RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
4-6 Polycom, Inc.
1 In the Content Video Definition section, select the Content Settings and Protocol as follows:
2 Click OK.
Table 4-2 H.239 Content Options
Field Description
Content Settings Select the transmission mode for the Content channel:
• Graphics — basic mode, intended for normal graphics
• Hi-res Graphics (AVC Only) — a higher bit rate intended for high
resolution graphic display
• Live Video (AVC Only) — Content channel displays live video
• Customized Content Rate (AVC Only) - manual definition of the
Conference Content Rate, mainly for cascading conferences.
Selection of a higher bit rate for the Content results in a lower bit rate
for the people channel.
For a detailed description of each of these options, see "Content
Settings” on page 4-7.
Content Protocol
• H.263 (AVC Only)
• Content is shared using the H.263 protocol.
• Use this option when most of the endpoints support H.263 and
some endpoints support H.264.
• H.263 & H.264 Auto Selection (AVC Only Default)
• Content is shared using H.263 if a mix of H.263-supporting
and H.264-supporting endpoints are connected.
• Content is shared using H.264 if all connected endpoints have
H.264 capability.
• H.264 HD (AVC Only)
• Ensures high quality Content when most endpoints support
H.264 and HD Resolutions.
• H.264 Cascade and SVC Optimized
• All Content is shared using the H.264 content protocol and is
optimized for use in SVC only and Cascaded Conferences.
For a detailed description of each of these settings, see "Content
Protocols” on page 4-8..
Cascade Resolution Select a Cascade Resolution from the drop-down menu.
The Cascade Resolutions that are available for selection are
dependent on the Line Rate and Content Settings that have been
selected for the conference.
For a full list of Cascade Resolutions see "Bit Rate Allocation to
Content Channel by Line Rate, Content Settings & Cascade
Resolution in AVC Conferencing” on page 4-12.
Note: This field is only displayed when H.264 Cascade and SVC
Optimized is selected as the Content Protocol and is enabled for
selection in AVC Only conferences. This option is disabled in SVC
conferences.