Dahua Technology DH-PFR4K-B240 User Manual page 28

Security radar
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Parameter
Enable
Encode Mode
Smart Codec
Resolution
Frame Rate (FPS)
Bit Rate Type
Reference Bit
Rate
Bit Rate
I Frame Interval
Watermark
Settings
Watermark
Character
Click Save.
Step 3
4.1.1.2 Snapshot
You can configure snapshots captured from monitoring video.
Step 1
Select Setting > Radar Settings > Video > Snapshot.
The Snapshot interface is displayed. See Figure 4-2.
Table 4-1 Video stream parameter descriptions
Description
By selecting Enable check box or not, you can enable or disable the sub
stream. It is enabled by default.
Select the encode mode from H.264, H.264H, H.264B, and H.265.
Enable smart codec to improve video compressibility and save storage space.
After smart codec is enabled, the third bit stream, ROI, and smart event
detection will be disabled. The actual interface shall prevail.
Select the resolution of main stream and sub stream. Each resolution has
different reference bit rate.
PAL: 1–25 frame per second. Frame rate varies with different resolutions.
Include CBR and VBR. You can set Quality (from 1 to 6, and 6 is the best) under
VBR mode.
The most suitable bit rate range recommended to users according to the set
resolution and frame rate.
The value is the upper limit of the stream in VBR mode. In CBR mode, it is fixed.
Refer to Reference Bit Rate to acquire the best setting rage.
The number of P frame between two I frames. The range varies with the bit
rate and is up to 150. It is recommended to set the number as twice of the bit
rate.
You can verify the watermark to check if the video has been tampered. Select
Watermark Settings check box to enable watermark.
The watermark character is DigitalCCTV by default.
The watermark characters (Max. 128 characters) can be Chinese characters,
letters, symbols, punctuation marks, space or special characters.
22
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