Cisco TelePresence SX20 Codec Reference Manual page 64

Cisco TelePresence SX20 Codec
Contents Introduction
xConfiguration Video DefaultPresentationSource
Define which video input source shall be used as the default presentation source when you press
the Presentation key on the remote control. If using a Touch controller this setting has no effect. The
Video Input Source n Connector setting defines which input connector to use for input source n.
Requires user role: USER
Value space: <1/2>
Range: Select the video source to be used as the presentation source.
Example: xConfiguration Video DefaultPresentationSource: 2
xConfiguration Video Input HDMI [1..1] RGBQuantizationRange
All devices with HDMI inputs should follow the rules for RGB video quantization range defined in
CEA-861. Unfortunately some devices do not follow the standard and this configuration may be
used to override the settings to get a perfect image with any source.
Requires user role: ADMIN
Value space: <Auto/Full/Limited>
Auto: RGB quantization range is automatically selected based on the RGB Quantization Range bits
(Q0, Q1) in the AVI infoframe. If no AVI infoframe is available, RGB quantization range is selected
based on video format according to CEA-861-E.
Full: Full quantization range. The R, G, B quantization range includes all code values (0 - 255). This
is defined in CEA-861-E.
Limited: Limited Quantization Range. R, G, B quantization range that excludes some code values at
the extremes (16 - 235). This is defined in CEA-861-E.
Example: xConfiguration Video Input 1 HDMI 1 RGBQuantizationRange: Auto
xConfiguration Video Input DVI [2] RGBQuantizationRange
All devices with DVI inputs should follow the rules for RGB video quantization range defined in CEA-
861. Unfortunately some devices do not follow the standard and this configuration may be used to
override the settings to get a perfect image with any source. The default value is set to Full because
most DVI sources expects full quantization range.
Requires user role: ADMIN
Value space: <Auto/Full/Limited>
Auto: RGB quantization range is automatically selected based on video format according to CEA-
861-E. CE video formats will use limited quantization range levels. IT video formats will use full
quantization range levels.
Full: Full quantization range. The R, G, B quantization range includes all code values (0 - 255). This
is defined in CEA-861-E.
Limited: Limited Quantization Range. R, G, B quantization range that excludes some code values at
the extremes (16 - 235). This is defined in CEA-861-E.
Example: xConfiguration Video Input 1 DVI 2 RGBQuantizationRange: Full
SX20 Codec API Reference Guide TC6.2, JULY 2013.
D14949.04
About the API xConfiguration xConfiguration
xConfiguration Video Input DVI [2] Type
xConfiguration Video Layout Scaling
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xCommand
The official DVI standard supports both digital and analog signals. In most cases the default
AutoDetect setting can detect whether the signal is analog RGB or digital. However, in some rare
cases when DVI-I cables are used (these cables can carry both the analog and digital signals) the
auto detection fails. This setting makes it possible to override the AutoDetect and select the correct
DVI video input.
Requires user role: ADMIN
Value space: <AutoDetect/Digital/AnalogRGB/AnalogYPbPr>
AutoDetect: Set to AutoDetect to automatically detect if the signal is analog RGB or digital.
Digital: Set to Digital to force the DVI video input to Digital when using DVI-I cables with both
analog and digital pins and AutoDetect fails.
AnalogRGB: Set to AnalogRGB to force the DVI video input to AnalogRGB when using DVI-I cables
with both analog and digital pins and AutoDetect fails.
AnalogYPbPr: Set to AnalogYPbPr to force the DVI video input to AnalogYPbPr, as the component
(YPbPr) signal cannot be auto detected.
Example: xConfiguration Video Input DVI 2 Type: AutoDetect
Define how the system shall adjust the aspect ratio for images or frames when there is a difference
between the image and the frame it is to be placed in.
Requires user role: ADMIN
Value space: <Off/On>
Off: No adjustment of the aspect ratio.
On: Let the system automatically adjust aspect ratio.
Example: xConfiguration Video Layout Scaling: On
API Reference Guide
xStatus Appendices
Copyright © 2013 Cisco Systems, Inc. All rights reserved.