IP Video Intercom Waterproof Vandal-Resistant Door Bell Station ·User
Manual
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performance is lowered.
The smaller the frame is, the worse the image continuity will be, but the CPU
could handle more events.
The maximum frame rate for H.265/H.264 is 30fps. The maximum frame rate for
MJPEG is 5fps.
I/PRate
: I/P rate means the ratio of I frame to P frame in compressed video
images.
The bigger the value is, the less the data quantity is and the less network
resource it occupies.
Max. I/P rate can be set to 30.
Bitrate type
: There are 2 modes of bit rate: variable rate (vbr) and constant rate
(cbr).
The variable rate can adjust the bandwidth that it occupies automatically
according to the complexity of image, because the complexity of real video
sequence keeps changing, details, speed, etc, and the variable rate setting mode
can be used to choose how much bandwidth should be used. If the video gets
more details and moving fast, then it takes up more bandwidth to transmit, and
reversely it occupies less bandwidth. When the setting goes with constant bit
rate, then the image is transmitted under a constant bandwidth.
Bit Rate: You have to set the upper limit of bit rate if “vbr” is selected; the
stream size will be fixed if “cbr” is selected and the stream size is defined in the
“Bit Rate”. For main stream, the bit rate upper limit can be
128kbps ~10000kbps ; for sub stream, the bit rate upper limit can be 32Kbps~
2000Kbps.
