*
MPEG4 ASP(Advanced Simple Profile):
,
s),
- Resolution:
ine a basic screen size when having an access through the Web
-
-4
video stream. Leaving the Maximum bit rate as unlimited maintains consistently good image
e
Note that the maximum bit rate can be used for both variable and constant bit rates.
ity in
itrate that consumes a predictable amount of
bandwidth. As the bit rate would usually need to increase for increased image activity, but in
e frame rate and image quality are affected negatively. To partly
:
not
- GOP size:
Group of Picture) size. If users want to have a high quality of fast image one
•
Sometimes the image size is large due to low light or complex scenery. Adjusting the frame rate
used by the Motion JPEG video stream in
these situations. Limiting the frame rate and quality optimizes bandwidth and storage usage, but
width and storage usage, the Resolution,
uality should be set to an optimal value.
-
- JPEG
frame
rate:
Same as the Stream1 Setting.
Its notable technical features relative to the Simple Profile, which is roughly similar to H.263
including "MPEG"-style quantization, interlaced video, B pictures (also known as B Frame
Quarter Pixel motion compensation (Qpel), Global motion compensation (GMC).
It enables users to determ
Browser or PC program. The screen size control comes in seven modes like 1920x1080,
1280x720, 640x480, 352x240, and 320x240. Users can reset the selected screen size
anytime while monitoring the screen on a real-time basis.
Bitrate control:
Limiting the maximum bit rate helps control the bandwidth used by the H.264 or MPEG
quality but increases bandwidth usage when there is more activity in the image. Limiting th
bit rate to a defined value prevents excessive bandwidth usage, but images are lost when
the limit is exceeded.
The bit rate can be set as Variable Bit Rate (VBR) or Constant Bit Rate (CBR). VBR adjusts
the bit rate according to the image complexity, using up bandwidth for increased activ
the image, and less for lower activity in the monitored area.
CBR allows you to set a fixed target b
this case cannot, th
compensate for this, it is possible to prioritize either the frame rate or the image quality
whenever the bit rate needs to be increased. Not setting a priority means the frame rate and
image quality are equally affected.
- Frame
rate
Upon the real-time play, users should select a frame refresh rate per second. If the rate is
high, the image will become smooth. On the other hand, if the rate is low, the image will
be natural but it can reduce a network load.
Select the GOP(
by one, please decrease the value. For the purpose of general monitoring, please do not
change a basic value. Such act may cause a problem to the system performance. For the
details of GOP setting, please contact the service center.
Stream2 Setting
and quality helps to control the bandwidth and storage
may give poor image quality. To prevent increased band
Frame rate, and Frame Q
JPEG
resolution:
Same as the Stream1 Setting.
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