Manual

26
Parameter
Function
Bit Rate Type
There are two options: VBR and CBR.
Please note, you can set video quality in VBR mode.
In MJPEG mode, the bit stream control mode can only
be CBR.
Recommended
Bit
Recommended bit rate value according to the resolution
and frame rate you have set.
Bit Rate
 In CBR, the bit rate here is the average value.
usually it is within a range of ±10%. In dynamic
video, system needs to lower frame rate or video
quality to guarantee the value.
 In VBR mode, the bit rate here is the max value。 It
can be lower than the setup value when the scene
is simple.
I Frame
interval
Here you can set the P frame amount between two I
frames. The value ranges from 1 to 150. Default value
is 60.
Recommended value is frame rate *2.
Important
I frame interval setup is null if it is the MJPEG
encode mode.
Watermark
This function allows you to verify the video is tampered
or not.
The max length is 128-digit. The character can only
include number, character, underline and hyphen.
Sub
stream
Enable
Please check the box here to enable extra stream
function.
This function is enabled by default.
Bit stream type
General bit stream.
Encode mode
There are four options: H.264, H.264H, and MJPEG
encode mode.
 H.264 : Main Profile encode mode.
 H.264H: High 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
There are multiple resolutions. You can select from the
dropdown list.
For each resolution, the recommended bit stream value
is different.