Milestone Central 3.7 - Manual (Page 52)

Milestone XProtect 3.7; Administrator’s Manual
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Full: The default setting, providing the full quality of the original video.
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SuperHigh: Re-encoding to an output width of 640 pixels (VGA) and a JPEG
quality level of 25%.
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High: Re-encoding to an output width of 320 pixels (QVGA) and a JPEG
quality level of 25%.
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Medium: Re-encoding to an output width of 200 pixels and a JPEG quality
level of 25%.
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Low: Re-encoding to an output width of 160 pixels and a JPEG quality level
of 20%.
Height will scale according to the width and the aspect ratio of the original video.
While using a reduced image quality helps limit bandwidth use, it will—due to the
need for re-encoding images—use additional resources on the surveillance system
server.
• Viewing frame rate: Lets you select a frame rate for video played back in
connection with the alarm definition in question. Select between Unlimited, Middle,
or Low. The effect of your selection can be illustrated as follows:
Effect Unlimited Medium Low
JPEG Send all frames Send every 4th
frame
Send every 20th
frame
MPEG (I-frame) Send all frames Send all frames Send all frames
MPEG (P-frame) Send all frames Do not send any
frames Do not send any
frames
Example: If you set the Viewing frame rate option to Low, and the surveillance
system administrator has configured a camera to feed JPEG images at a frame rate
of 20 frames per second, you will experience an average of 1 frame per second
when viewing video from that camera in the Central Client in connection with the
alarm definition in question. If the administrator had configured the camera with a
feed as low as 4 frames per second, you would, if selecting Low, experience an
average of 0,2 frames per second.
When ready, click OK to save your alarm definition.
Editing an Alarm Definition
To edit an existing alarm definition, right-click the required alarm in the Client’s Navigation section,
then select Edit Alarm...
This will open the Alarm Definition dialog, in which you are able to edit the definition of the alarm.
The Alarm Definition dialog’s fields are described in Defining a New Alarm on page 49.
When ready, click OK to save your edited alarm definition.
Deleting an Alarm Definition
To delete an existing alarm definition, right-click the unwanted alarm in the Client’s Navigation
section, then select Delete Alarm... You will be asked to confirm that you want to delete the alarm;
if you are sure, click OK to delete the alarm.
www.milestonesys.com Page 52 Client: Alarms