Dahua Technology DH-PFR4K-D300, Руководство пользователя

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User’s Manual
23
Table 4-1
Video stream parameter descriptions
Parameter Description
Enable
By selecting Enable check box or not, you can enable or disable the sub
stream. It is enabled by default.
Encode Mode Select the encode mode from H.264, H.264H, H.264B, and H.265.
Smart Codec
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.
Resolution
Select the resolution of main stream and sub stream. Each resolution has
different reference bit rate.
Frame Rate
(FPS)
PAL: 1–25 frame per second. Frame rate varies with different resolutions.
Bit Rate Type
Include CBR and VBR. You can set Quality (from 1 to 6, and 6 is the best)
under VBR mode.
Reference Bit
Rate The most suitable bit rate range recommended to users according to the
set resolution and frame rate.
Bit 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.
I Frame Interval
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.
Watermark
Settings You can verify the watermark to check if the video has been tampered.
Select
Watermark Settings check box to enable watermark.
Watermark
Character
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.
Click Save .
4.1.1.2
Snapshot
You can configure snapshots captured from monitoring video.
Select Setting > Radar Settings > Video >Snapshot .
The Snapsho t interface is displayed. See Figure 4-2.