Polycom RealPresence RMX 4000, Руководство администратора

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Defining AVC-Based Conference Profiles
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Content Protocol Select the Content Protocol to be used for content sharing in Highest Common
Content Sharing Mode.
• H.263
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
When selected, content is shared using H.263 if a mix of H.263-supporting and
H.264-supporting endpoints are connected, or H.264 if all connected endpoints
have H.264 capability.
• H.264 Cascade Optimized
All Content is shared using the H.264 content protocol and is optimized for use
in cascaded conferences.
• H.264 H D (default)
Ensures high quality Content when most endpoints support H.264 and HD
resolutions.
Note: When Multiple Content Resolutions is selected, the Content Protocol field
is hidden.
For more information, see
Content Protocols and Defining Content Sharing
Parameters for a Conference
H.264 High Profile The H.264 High Profile check box is un-checked by default and is displayed next to
the Content Protocol drop-down menu if all the following conditions are met:
• The MCU is a RealPresence Collaboration Server 1800, or 2000/4000 containing
MPMRx cards.
• Conferencing mode is VSW (Video Switching).
• Multiple Resolutions (Content Transcoding) is not selected.
• The selected Content Protocol is H.264 Cascade Optimized .
If H.264 HD, H.264 Cascade Optimized is selected, the Content Resolution is
set according to the line rate.
• TIP Compatibility (in the Profile - Advanced dialog box) is selected as None .
Content Resolution Select the Content Resolution and frame rate according to the selected Content
Sharing Mode (Highest common Content or Multiple Resolution Contents) and the
video protocol. For more information, see
Defining Content Sharing Parameters for
a Conference .
Content Rate The Content Rate drop-down menu is displayed next to the Content Resolution
drop-down menu when:
• H.264 Cascade Optimized is the selected Content Protocol
and
• CustomizedContentRate is the selected Content Setting .
The Content Rate is dependent on the MCU type (RealPresence Collaboration
Server with MPMRx or RealPresence Collaboration Server 1800) and can be up to
66% of the conference line rate. In MCUs with MPMx cards the Content Rate is
limited to 2048 kbps, while when used with the RealPresence Collaboration Server
1800 the Content Rate is limited to 4096 kbps.
New AVC CP Profile - Video Quality Parameters
Field/Option Description