Dahua Mobile DVR Series - Page 120

109
Figure 5-16
Please refer to the following sheet for detailed information.
Parameter
Function
Channel
Please select a channel from the dropdown list.
Video enable
Check the box here to enable extra stream video. This item is
enabled by default.
Code stream
type
It includes main stream, motion stream and alarm stream. You
can select different encode frame rates form different recorded
events.
System supports active control frame function (ACF). It allows
you to record in different frame rates.
For example, you can use high frame rate to record important
events, record scheduled event in lower frame rate and it allows
you to set different frame rates for alarm record.
Compression
The main bit stream and the extra stream supports H.264.
Resolution
Please select from the dropdown list. System max supports
1080P.
Frame Rate
PAL：1～25f/s；NTSC：1～30f/s.
Bit Rate
It is to set bit rate.
Reference bit
rate
Recommended bit rate value according to the resolution and
frame rate you have set.
Audio format
System supports PCM, G.711a, and G.711u.
Audio source
It includes peripheral pickup and coaxial.
Watermark
enable
This function allows you to verify the video is tampered or not.
Here you can select watermark bit stream, watermark mode and
watermark character. Default character is DigitalCCTV. The max
length is 127-digit. The character can only include number,
character and underline.