User`s manual

21
AXIS 282/AXIS 282A - Video & Image Settings
Advanced
MPEG-4 Settings
These settings are tools for adjusting the MPEG-4 settings and for controlling the video bit
rate.
The MPEG-4 standard provides many different coding
tools for various applications in
different situations. As most MPEG-4 clients do not support all of these tools, it is usual to
instead define and use subsets for different clients or groups of clients. These settings allow
you to define the type of viewing client to use.
Adjusting the maximum bit rate and setting it
to variable or constant is a good way of
controlling the bandwidth used by the MPEG-4 video stream.
MJPEG Settings
In some situation the image size may get quite large due to low light or complex scenery.
Adjusting the maximum frame size is a good way of controlling the bandwidth and storage
used by the MJPEG video stream in these situations. Leaving the frame size as Unlimited
will provide consistently good image quality at the expense of increased bandwidth and
storage usage during low light. Limiting the frame size will prevent excessive bandwidth
and storage usage, but image quality will suffer. To prevent increase in bandwidth and
storage usage, the maximum frame size should be set to an optimal amount.
For more information on these advanced settings
, please see the online help.
Overlay/Mask Settings
Overlay/Mask Type
Overlay/Mask Type allows you to
place an overlay, or up to three
privacy masks over the video
image:
• Upload and place an image as
an ove
rlay - usually used to
provide extra information in
the video image.
• Place up to three privacy masks
-
up to 3 configurable masks
can be used to conceal different
areas of the video image.
Date &
Time
image
Overlay
Mask