Configuring Snapshot Settings - Dahua DH-XVR42 AN-I Series User Manual

Parameter
Compression
Resolution
Frame Rate (FPS)
Bit Rate Type
Quality
I Frame Interval
Bit Rate (Kb/S)
Video
Audio
Audio Source
Compression

5.1.4.7 Configuring Snapshot Settings

You can configure the basic snapshot settings such as quantity of snapshot each time, channel(s) to
take snapshot, and image size and quality of snapshot.
You can also configure general settings by selecting Main Menu > CAMERA > Encode > Snapshot.
Description
In the Compression list, select the encode mode.
● H.265: Main profile encoding. This setting is recommended.
● H.264H: High profile encoding. Low bit stream with high
definition.
● H.264: Main profile encoding.
● H.264B: Baseline profile encoding. This setting requires higher bit
stream compared with other settings for the same definition.
In the Resolution list, select resolution for the video.
The maximum video resolution might be different dependent on your
device model.
Configure the frames per second for the video. The higher the value is,
the clearer and smoother the image will become. Frame rate changes
along with the resolution.
Generally, in PAL format, you can select the value from 1 through 25;
in NTSC format, you can select the value from 1 through 30. However,
the actual range of frame rate that you can select depends on the
capability of the Device.
In the Bit Rate Type list, select CBR (Constant Bit Rate) or VBR
(Variable Bit Rate). If you select CBR, the image quality cannot be
configured; if you select VBR, the image quality can be configured.
This function is available if you select VBR in the Bit Rate List.
The bigger the value is, the better the image will become.
The interval between two reference frames.
In the Bit Rate list, select a value or enter a customized value to
change the image quality. The bigger the value is, the better the
image will become.
Enable the function for sub stream.
Click More, the More page is displayed.
● Audio: This function is enabled by default for main stream. You
need to manually enable it for sub stream 1. Once this function is
enabled, the recorded video file is composite audio and video
stream.
● Audio Source: In the Audio Source list, you can select Local and
HDCVI.
◇
Local: The audio signal is input from Audio In port.
◇
HDCVI: The audio signal is input from HDCVI camera.
● Compression: In the Compression list, select a format that you
need.
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