Optimal Definition Profiles - Cisco TelePresence System Codec C40 Administrator's Manual

Cisco TelePresence System Codec C40/C60 and Profiles using C40/60
Contents

Optimal definition profiles

Under ideal lighting conditions the bandwidth (call rate)
requirements can be substantially reduced.
The optimal definition profile should reflect the lighting
conditions in your room and the quality of the video input
(camera); the better the lighting conditions and video input,
the higher the profile. Then, in good lighting conditions, the
video encoder will provide better quality (higher resolution or
frame rate) for a given call rate.
In general, we recommend the optimal definition profile
set to Normal. However, if lighting conditions are good we
recommend that you test the endpoint on the various Optimal
Definition Profile settings before deciding on a profile.
Go to System Configuration on the web interface and
navigate to Video > Input > Source [1..n] > OptimalDefinition >
Profile to choose the preferred optimal definition profile.
You can set a resolution threshold to determine when to allow
sending video at 60 fps. For all resolutions lower than this
threshold, the maximum transmitted frame rate will be 30 fps;
for higher resolutions, 60 fps will be possible if the available
bandwidth is adequate.
Go to System Configuration on the web interface and
navigate to Video > Input > Source [1..n] > OptimalDefinition >
Threshold60fps to set the threshold.
The video input quality settings must be set to Motion for the
optimal definition settings to take any effect. With the video
input quality set to Sharpness, the endpoint will transmit the
highest resolution possible, regardless of frame rate.
Go to System Configuration on the web interface and
navigate to Video > Input > Source [1..n] > Quality
video quality parameter to Motion.
You can read more about the video settings in the
► System settings
chapter.
D14636.10 Profile C60-C40 and Codec C60-C40
Introduction Web interface
High
Typically used in dedicated video
conferencing rooms. Requires very good
lighting conditions and a good quality
video input to achieve a good overall
experience.
Under ideal conditions the bandwidth
requirements can be reduced by up to
50% compared to Normal.
to set the
Administrator Guide TC6.1, APRIL 2013.
System settings
Medium
Typically used in rooms with good and
stable lighting conditions and a good
quality video input.
The bandwidth requirements can be
reduced by up to 25% compared to
Normal.
Typical resolutions used for different optimal definition profiles, call rates and frame rates
Optimal
Frame
Definition
rate
Profile
256 kbps 768 kbps
Normal 512 × 288 1024 × 576
Medium 640 × 360 1280 × 720
30 fps
High 768 × 448 1280 × 720
Normal 256 × 144 512 × 288
60 fps Medium 256 × 144 768 × 448
High 512 × 288 1024 × 576
* The resolution will be 1920 × 1080 for 1080p60 capable C60 codecs (main board rev F and later).
126
Setting passwords
Normal
This setting is typically used in office
environments where the room is normally
to poorly lit.
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 1280 × 720
1024 × 576 1024 × 576 1280 × 720 1280 × 720
1280 × 720 1280 × 720 1280 × 720 1280 × 720
*
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Administrator Guide
Appendices Appendices
6 Mbps
*
* 1280 × 720 *
1280 × 720
* *