Milestone Screen Recorder 1.5 - Manual (Page 12)

XProtect
®
Screen Recorder 1.5 Administrator's Manual
www.milestonesys.com 12 Installing on recording server
Installing on recording server
In the relevant XProtect Management Application on the recording server, you must add a screen recorder device
which connects to the XProtect Screen Recorder service. In principle, it is added and configured like any other IP
video camera (see relevant documentation of your XProtect surveillance system for details on how to add and
configure a camera).
During the adding of a screen recorder device, the user name must be milestone and the camera type Screen
Recorder. A screen recorder device has the following configurable parameters:
Tip: When adding a screen recorder device, you must provide the IP address of the device (which, in this case, is
actually a computer). But when adding a device of the Screen Recorder type, you might be in a situation where
the device (computer) does not have a permanent IP address. In that case, it is possible to use the Domain Name
System (DNS) name of the device (computer).
Set frames per second/live frame rate
Frames per second in XProtect® Corporate / Live frame rate in other Milestone surveillance products.
A low frame rate is recommended because high frame rates may cause heavy CPU usage on the computer with
XProtect Screen Recorder installed. For this reason, the XProtect Screen Recorder feature never yields more
than 4 frames per second.
Tip: Two frames per second offers a nice impression of screen activity and causes approximately 5-8% extra
CPU usage on an average Windows 7 computer anno 2010. Thus, 2 or 3 frames per second is the recommended
daily setting.
Note that XProtect® Enterprise camera configuration displays a default of 8 frames per second. However, for a
screen recorder device, no more than 4 frames per second will ever be sent.
Set quality
Video frames are sent to the recording server as a series of JPEGs. It is possible to lower network and storage
consumption by configuring a lower quality. However, this will result in a more blurred image. The effective valid
range is 0 (poorest quality) to 100 (best quality). Default is 75, which reduces the amount of data nicely without
reducing the visual quality too much. Note however, that the JPEG algorithm is not optimized for computer
images with many rectangles. So even with a high quality you will still observe glitches around straight lines.
Set capture mode
With regards to capture mode, there is a choice of:

Primary screen only: the primary screen only.

All screens (if there is more than one screen): a mosaic of all screens setup for the computer in
question.

Screen 1, Screen 2, etc. (if there is more than one screen): The selected screen only.