Technical References

D14642.13 Codec C40-C60 API Reference Guide TC6.3, NOVEMBER 2013. Copyright © 2010–2013 Cisco Systems, Inc. All rights reserved. 73
Cisco TelePresence System Codec C40/C60 API Reference Guide
xConfiguration Video Input Source [1..3] OptimalDefinition Threshold60fps
For each video input, this setting tells the system the lowest resolution where it should transmit
60fps. So for all resolutions lower than this, the maximum transmitted framerate would be 30fps,
while above this resolution 60fps would also be possible, if the available bandwidth is adequate.
Requires user role: ADMIN
Value space: <512_288/768_448/1024_576/1280_720/1920_1080/Never>
512_ 288: Set the threshold to 512x288.
768_448: Set the threshold to 768x448.
1024_576: Set the threshold to 1024x576.
1280_720: Set the threshold to 1280x720.
1920_1080: Set the threshold to 1920x1080.
Never: Do not set a threshold for transmitting 60fps.
Example:
xConfiguration Video Input Source 1 OptimalDefinition Threshold60fps:
1280 _ 720
xConfiguration Video Input Source [1..3] Quality
When encoding and transmitting video there will be a trade-off between high resolution and
high framerate. For some video sources it is more important to transmit high framerate than high
resolution and vice versa. The Quality setting specifies whether to give priority to high frame rate or
to high resolution for a given source.
Requires user role: ADMIN
Value space: <Motion/Sharpness>
Motion: Gives the highest possible framerate. Used when there is a need for higher frame rates,
typically when a large number of participants are present or when there is a lot of motion in the
picture.
Sharpness: Gives the highest possible resolution. Used when you want the highest quality of
detailed images and graphics.
Example:
xConfiguration Video Input Source 1 Quality: Motion
xConfiguration Video MainVideoSource
Define which video input source shall be used as the main video source.
Requires user role: USER
Value space: <1/2/3>
Range: Select the source to be used as the main video source.
Example:
xConfiguration Video MainVideoSource: 1
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: <1/2/3>
Range: Select the video source to be used as the presentation source.
Example:
xConfiguration Video DefaultPresentationSource: 3
xConfiguration Video Input HDMI [1..2] 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
Contents
Introduction
About the API
xConfiguration
Appendices
xCommand
xStatus
xConfigu ration