Dahua Technology DH-IPC-EBW81242N-AS-S2 12MP Outdoor Network Panoramic Fisheye Camera with Night Vision - Manual (Page 38)

Operation Manual
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Parameter Description
Bit Rate Type
The bit rate control type during video data transmission. You can
select bit rate type from:
● CBR (Constant Bit Rate): The bit rate changes a little and keeps
close to the defined bit rate value.
● VBR (Variable Bit Rate): The bit rate changes as monitoring
scene changes.
The Bit Rate Type can be only be set as CBR when Encode Mode is
set as MJPEG .
Quality
This parameter can be configured only when the Bit Rate Type is set
as VBR .
The better the quality is, but the bigger the required bandwidth will
be.
Reference Bit Rate
The most suitable bit rate value range recommended to user
according to the defined resolution and frame rate.
Max Bit Rate
This parameter can be configured only when the Bit Rate Type is set
as VBR .
You can select the value of the Max Bit Rate according to the
Reference Bit Rate value. The bit rate then changes as monitoring
scene changes, but the max bit rate keeps close to the defined value.
Bit Rate
This parameter can be configured only when the Bit Rate Type is set
as CBR .
Select bit rate value in the list according to actual condition.
I Frame Interval
The number of P frames between two I frames, and the I Frame
Interval range changes as FPS changes.
It is recommended to set I Frame Interval twice as big as FPS .
SVC
Scaled video coding, is able to encode a high quality video bit
stream that contains one or more subset bit streams. When sending
stream, to improve fluency, the system will quit some data of related
lays according to the network status.
● 1: The default value, which means that there is no layered
coding.
● 2, 3 and 4: The lay number that the video stream is packed.
Watermark
You can verify the watermark to check if the video has been
tampered.
Watermark String
Step 3 Click Apply .
6.2.2.2 Overlay
Configure overlay information, and it will be displayed on the Live interface.
6.2.2.2.1 Configuring Privacy Masking
You can enable this function when you need to protect the privacy of some area on the video image.