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Step 2
Select a channel and then configure parameters.
The parameters for main stream and sub stream are different. Some models support three
streams: main stream, sub stream 1, sub stream 2.
Parameter
Coding Strategy
Type
Compression
Resolution
Frame Rate (FPS)
Bit Rate Type
Quality
Table 5-20 Audio/video parameters
Description
General : Use general coding strategy.
●
Smart Codec : Enable the smart codec function. This function can
●
reduce the video bit stream for non-important recorded video to
maximize the storage space.
AI Codec : Enable the AI codec function. This function can reduce
●
the camera code stream, network transmission pressure, and hard
drive storage space without affecting the image quality.
Select the recording type for main stream from General , Motion
(motion detection), or Alarm.
Select the encoding 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 mode requires higher bit
●
stream compared with other modes for the same definition.
Select resolution for the video.
The maximum video resolution might be different depending 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.
CBR (constant bit rate): The bit rate changes slightly around the
●
defined value. We recommended selecting CBR when there might
be only small changes in the monitoring environment.
VBR (variable bit rate): The bit rate changes with monitoring scenes.
●
Select variable stream when there might be big changes in the
monitoring environment.
The bigger the value is, the better the image will become.
This parameter is available if you select VBR as Bit Rate Type.
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