Dahua Technology DHIH1C, Руководство пользователя

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Name Function
Compression
It is to set video bit streams encode type.
 H.264: Main Profile encode mode.
 MJPEG: In this encode mode, the video needs general large bit stream to
guarantee the video definition. You can use the max bit stream value in
the recommend bit to get the better video output effect.
Resolution
It is to set video resolution. The higher the resolution is, the much clearer the
video is.
Frame rate
(FPS)
Set the frame rates per second. The higher the frame rate is, the attractive and
fluent the video is. The frame rate may vary according to the resolution.
Bit rate type
There are two options: VBR and CBR.

CBR: Bit rates vary slightly. The bit rate remains general the same.

VBR: The bit rate may change according to the surveillance environment.
Note

When the surveillance environment is changing slightly, please use CBR.
When the surveillance environment is changing greatly, please use VBR.

In MJPEG mode, the bit stream control mode can only be CBR.
Video quality
It is to set the image quality. There are six levels:1,2,3,4,5,6. The higher the
value is, the best the quality is.
Note
This item is customized only when the bit rate type is VBR.
Bit rate
Set bit rate value.
 Main stream: Set the bit rate to change video quality. The higher the bit
rate is, the better the video quality is. The reference bit rate provides the
best recommended value range.
 Sub stream: In CBR mode, the bit rate is general around the setup value.
In VBR mode, it changes according to the video situation. But it remains
the same with the setup value.
Reference
Bit rate
Recommended bit rate value according to the resolution and frame rate you
have set.
Enable audio
Check the box to enable audio function. The record file includes video and
audio composite streams.
Audio
encode
Select audio encode mode.
Copy After set one channel, click copy to copy current channel setup to other
channel(s).
Refresh Click to get the latest setup information.
Default Click to restore default setup.
Step 3 Click OK to save settings.
2.7.2.5 Overlay
It is to set overlay title information on the surveillance video.
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