Ganz PixIPro ZN-MDI243M-IR, User Manual

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H.264
This is a video compression standard that makes good use of bandwidth and which
could provide high-quality video streams at less than 1 Mbit/s.
The H.264 standard provides scope for a large range of different coding tools for use
by various applications in different situations, and the GANZ PixelPro provides
certain subsets of these tools.
Using H.264, it is also possible to control the bit rate, which in turn allows the amount
of bandwidth usage to be controlled. CBR (Constant Bit Rate) is used to achieve a
specific bit rate by varying the quality of the H.264 stream. While using VBR
(Variable Bit Rate), the quality of the video stream is kept as constant as possible, at
the cost of a varying bit rate.
Motion JPEG
This format uses standard JPEG still images in the video stream. These images then
are displayed and updated at a rate sufficient to create a stream that shows
constantly updated motion.
The Motion JPEG stream uses considerable amounts of bandwidth, but also
provides excellent image quality and access to every individual image contained in
the stream.
Multiple clients accessing Motion JPEG streams could use different image settings.
Codec
H.264 / MJPEG
Size
Video output resolution. See the next page for the output resolution table.
Frame rate
1~30fps in normal mode (1~15fps for slow shutter mode)
Note:
If the slow shutter mode is turned on and the low light condition is met, the
frame rate is automatically goes down. In this case, the frame is half of the
normal mode.
GOP Size
1 ~ 60 frames
Bit-rate control (CBR or VBR)
When using H.264 compression, if there is only limited bandwidth available, a
constant bit rate(CBR) is recommended, although this may compromise image
quality. Use a variable bit rate(VBR) for the best possibly image quality.