TANDBERG Codec C90 Administrator's Manual page 33

TANDBERG Codec C90 and Profiles using C90
Contents Contents Introduction Introduction
The Video settings,
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Video Input Source [1..5] 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.
Value space: <512_288/768_448/1024_576/1280_720/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.
Never: Do not set a threshold for transmitting 60fps.
Example: Video Input Source 1 OptimalDefinition Threshold60fps: 1280 _ 720
Video Input Source [1..5] Quality
When encoding and transmitting video there will be a tradeoff 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.
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: Video Input Source 1 Quality: Motion
Video Layout ScaleToFrame
Define what to do if the aspect ratio of a video input source doesn't match the aspect ratio of the
corresponding image frame in a composition. For example if you have a 4:3 input source (like XGA) to be
displayed on a 16:9 output (like HD720).
Value space: <Manual/MaintainAspectRatio/StretchToFit>
Manual: If the difference in aspect ratio between the video input source and the target image frame is
less than the ScaleToFrameThreshold configuration (in percent), the image is stretched to fit. If not, the
system will maintain the original aspect ratio.
MaintainAspectRatio: Will maintain the aspect ratio of the input source, and fill in black in the rest of the
frame (letter boxing or pillar boxing).
StretchToFit: Will stretch (horizontally or vertically) the input source to fit into the image frame.
Example: Video Layout ScaleToFrame: MaintainAspectRatio
D14635.03—MAY 2010
Advanced config.
Advanced configuration Advanced configuration Password protection Password protection About monitors About monitors Audio matters Audio matters
The Video settings,
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Video Layout ScaleToFrameThreshold
Only applicable if the ScaleToFrame configuration is set to manual. If the difference in aspect ratio between
the video input source and the target image frame is less than the ScaleToFrameThreshold configuration
(in percent), the image is stretched to fit. If not, the system will maintain the original aspect ratio.
Value space: <0..100>
Range: Select a value from 0 to 100 percent.
Example: Video Layout ScaleToFrameThreshold: 5
Video Layout Scaling
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.
Value space: <On/Off>
On: Let the system automatically adjust aspect ratio.
Off: No adjustment of the aspect ratio.
Example: Video Layout Scaling: On
Video MainVideoSource
Define which video input source shall be used as the main video source.
Value space: <1..5>
Range: Select the source to be used as the main video source.
Example: Video MainVideoSource: 1
Video Monitors
Set the monitor layout mode.
Value space: <Single/Dual/DualPresentationOnly/Quadruple>
Single: The same layout is shown on all monitors.
Dual: The layout is distributed on two monitors.
DualPresentationOnly: All participants in the call will be shown on the first monitor, while the
presentation (if any) will be shown on the second monitor.
Quadruple: The layout is distributed on four monitors, so that each remote participant and the
presentation will be shown on separate monitors.
Example: Video Monitors: Single
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