Cisco Codec C20 Reference Manual page 59

Cisco TelePresence System Codec C20
Contents Introduction
xConfiguration Video Input Source [1..2] 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..2] Quality
When encoding and transmitting video there will be a trade-off between high resolution and high fram-
erate. 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, typi-
cally 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. The video input source is
configured with the "Video Input Source [1..n] Connector" setting.
Requires user role: USER
Value space: <1/2>
Range: Select the source to be used as the main video source.
example: xConfiguration Video MainVideoSource: 1
Codec C20 API Reference Guide TC6.0 February 2013.
D14869.05
About the API xConfiguration xConfiguration
xConfiguration Video DefaultPresentationSource
xConfiguration Video Input HDMI [1..1] RGBQuantizationRange
xConfiguration Video Input DVI [2] RGBQuantizationRange
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xCommand
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
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
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
API Reference Guide
xStatus Appendices
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