Filter
Top Products
Polycom, Inc. 3-1
3
Video Protocols and Resolution
Configuration for CP Conferencing
Video Resolutions in AVC-based CP Conferencing
The Polycom
®
RealPresence
®
Collaboration Server 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, sends 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
The following video resolution information applies to AVC Conferencing Mode.
For a description of resolutions for SVC Conferencing Mode see "The simulcast media streams
supported by the MCU are called operation points and they are fixed for all the SVC conferences.
The MCU automatically selects the operation points according to the conference line rate. Table 2-1
details the maximum resolution and frame rates supported by the MCU for each conference line
rate. The actual video rate, resolution and frame rates displayed on each endpoints is determined by
the endpoint’s capabilities.:” on page 2-15.