Video Input Connector [1 - Cisco TelePresence SX80 Administrator's Manual

Cisco TelePresence SX80
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Introduction
Video Input Connector [1..5] Quality
When encoding and transmitting video there is a trade-off between high resolution and
high frame rate. For some video sources it is more important to transmit high frame rate
than high resolution and vice versa. This setting specifies whether to give priority to high
frame rate or to high resolution.
Requires user role: ADMIN
Default value: Connector 1, 2, 5: Motion Connector 3, 4: Sharpness
Value space: Motion/Sharpness
Motion: Gives the highest possible frame rate. 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.
D15328.04 SX80 Administrator Guide CE8.2, OCTOBER 2016.
Configuration Peripherals Maintenance
Video Input Connector [1..5] OptimalDefinition Profile
This setting will only take effect if the corresponding Video Input Connector [n] Quality
setting is set to Motion.
The optimal definition profile reflects the lighting conditions in the video conferencing room
and the quality of the camera. The better lighting conditions and the better quality of the
camera, the higher the profile. In good lighting conditions, the video encoder will provide
better quality (higher resolution or frame rate) for a given call rate. Generally, the Normal or
Medium profiles are recommended. However, when the lighting conditions are very good,
the High profile can be set in order to increase the resolution for a given call rate.
Some typical resolutions used for different optimal definition profiles, call rates and
transmit frame rates are shown in the table below. The resolution must be supported by
both the calling and called systems. Use the Video Input Connector [n] OptimalDefinition
Threshold60fps setting to decide when to use the 60 fps frame rate.
Typical resolutions used for different optimal definition profiles, call rates and frame rates
Optimal
Frame
Definition
rate
768 kbps
Profile
Normal 1280 × 720 1280 × 720 1280 × 720 1920 × 1080
30 fps Medium 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
High 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
Normal 768 × 448
60 fps Medium 1024 × 576 1280 × 720 1280 × 720 1280 × 720
High 1280 × 720 1280 × 720 1280 × 720 1280 × 720
Normal 1024 × 576 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
30 fps Medium 1280 × 720 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
High 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
Normal 640 × 360
60 fps Medium 768 × 448
High 1024 × 576 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
The maximum bit rate for H.265 is 3 Mbps. If the bit rate is set higher the codec uses H.264. In general, H.265
. *
gives similar quality to H.264 at half the bandwidth (call rate).
Requires user role: ADMIN
Default value: Medium
Value space: Normal/Medium/High
Normal: Use this profile for a normally to poorly lit environment. Resolutions will be set
rather conservative.
Medium: Requires good and stable lighting conditions and a good quality video input. For
some call rates this leads to higher resolution.
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Administrator Guide
System settings System settings Appendices
Call rate
1152 kbps 1472 kbps 3072 kbps 4 Mbps
1024 × 576 1280 × 720 1280 × 720
768 × 448 1024 × 576 1280 × 720 1280 × 720 1920 × 1080
1024 × 576 1024 × 576 1280 × 720 1920 × 1080 1920 × 1080
* 6 Mbps *