Polycom RealPresence 2000, Руководство администратора

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Polycom, Inc.
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Video Protocols and Resolution
Configuration for CP Conferencing
Video Resolutions in AVC-based CP Conferencing
The RealPresence Collaboration Server (RMX) 1500/2000/4000 always attempts to connect to
endpoints at the highest line rate defined for the conference. If the connection cannot be
established using the conference line rate, the RMX attempts to connect at the next highest
line rate at its highest supported resolution.
Depending on the line rate, the RMX sends video at the best possible resolution supported
by the endpoint regardless of the resolution received from the endpoint.
The video resolution is also defined by the
Video Quality settings in the Profile.
• Motion , when selected, results in lower video resolution at higher frame rates (30 fps to
60 fps).
• Sharpness , when selected, results in higher video resolution at lower frame rate (30 fps
and lower). .
The combination of frame rate and resolution affects the number of video resources
required on the MCU to support the call.
The following resolutions are supported:
•
CIF 352 x 288 pixels at 30 or 60 fps.
• SD 720 x 576 pixels at 30 or 60 fps.
• HD 720p 1280 x 720 pixels at 30 or 60 fps.
• HD 1080p 1920 x 1080 pixels at 30 fps
• HD 1080p 1920 x 1080 pixels at 60 fps (Symmetric in Motion, a-symmetric in Sharpness)
The following video resolution information applies to AVC CP Conferencing Mode. For a description
of resolutions for SVC Conferencing Mode see "
Defining SVC Conferencing Profiles” on page 2-74 .
From Version 7.1 , MPM media cards are not supported.
From Version 8.1 , MPM+ media cards are not supported.