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 the Touch screen control panel 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 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 TC7.0, JANUARY 2014.
D14949.08
About the API xConfiguration xConfiguration
xConfiguration Video Input DVI [2] Type
xConfiguration Video Input HDMI [1] RGBQuantizationRange
xConfiguration Video Input Source [1..3] Name
64
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
Typical resolutions used for different optimal definition profiles, call rates and frame rates
Optimal
Frame
Definition
All devices with HDMI inputs should follow the rules for RGB video quantization range defined in
rate
Profile
256 kbps 768 kbps
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.
Normal 512 × 288 1024 × 576
Requires user role: ADMIN
30 fps Medium 640 × 360 1280 × 720
Value space: <Auto/Full/Limited>
High 768 × 448 1280 × 720
Auto: RGB quantization range is automatically selected based on the RGB Quantization Range bits
Normal 256 × 144 512 × 288
(Q0, Q1) in the AVI infoframe. If no AVI infoframe is available, RGB quantization range is selected
60 fps Medium 256 × 144 768 × 448
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
High 512 × 288 1024 × 576
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
Enter a name for the video input source. NOTE: Video input source 3 is not supported in this version.
Requires user role: ADMIN
Value space: <S: 0, 50>
Format: String with a maximum of 50 characters.
Example: xConfiguration Video Input Source 1 Name: ""
API Reference Guide
xStatus Appendices
Call rate
1152 kbps 1472 kbps 2560 kbps 4 Mbps
1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
768 × 448 1024 × 576 1280 × 720 1280 × 720 1920 × 1080
1024 × 576 1024 × 576 1280 × 720 1920 × 1080 1920 × 1080
1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
Copyright © 2014 Cisco Systems, Inc. All rights reserved.
6 Mbps