Appendix H - Integration Into Microsoft Environments
Polycom®, Inc. 788
System Flags for Cropping Control
Cropping occurs when the video source (endpoint) aspect ratio is different from the video cell aspect ratio
in the Polycom Video Layout.
For all endpoints other than ITP endpoints and panoramic cells the Collaboration Server calculates the
mismatch percentage between the source video aspect ratio and Polycom video layout cell aspect ratio. The
mismatch percentage is used to determine whether cropping or striping will be applied to the video cell in
the Polycom video layout.
For non-panoramic layouts, cropping and striping can be controlled by adding the
CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag and setting its value accordingly.
For panoramic layouts, cropping and striping can be controlled by adding the
CROPPING_PERCENTAGE_THRESHOLD_PANORAMIC System Flag and setting its value accordingly.
For both System Flags:
Range: -1-100.
Default: -1
If the calculation result is less than or equal to the value of the
CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag, cropping will be applied.
If the calculation result is greater than the value of the
CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag, striping will be applied.
If the CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag value is set to 0, cropping will
not be applied.
If the CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag value is set to -1 cropping will
always be applied.
If the CROPPING_PERCENTAGE_THRESHOLD_GENERAL System Flag value is set to 100, always
apply cropping with the exception of mobile aspect ratios. Mobile aspect ratios are those with a larger vertial
aspect than horizontal for example 3:4.
Example: An iPhone Lync client sends 288x352 (3:4) aspect ratio. Cropping this resolution to 16:9 would
require the cropping of 190 pixels on the vertical aspect. The mismatch calculation would yield 190/352 ~54.
If the applicable System Flag's value is set to >= 54, striping, rather than cropping, is applied.
For more information see,
Modifying System Flags
in the Collaboration Server (RMX) Administrator’s Guide.
Sharing Content during a Conference
Using Polycom CSS (Content Sharing Suite) plug in, Lync 2013 clients are able to share content in Polycom
Content sessions in both Collaboration Server Hosted calls and Cascaded MS AV MCU calls, with both Lync
2010 & 2013 clients.
Content Sharing behavior is summarized in the following tables:
Content Sharing by Lync Version and Deployment Architecture
Lync Version Collaboration Server Hosted Cascaded MS AV MCU
Lync 2010 Supported, as in previous versions. Not supported
Lync 2013 Supported. Supported