Dante DNA2000 Series, Installation And Operation Manual, Page: 127 / 200

System supports active control frame function (ACF). It allows
user to record in different frame rates.
For example, user can use high frame rate to record important
events, record scheduled event in lower frame rate and it allows
user to set different frame rates for motion detection record and
alarm record.
Compression The main bit stream supports H.264. The extra stream supports
H.264, MJPG.
Resolution
The resolution here refers to the capability of the network
camera.
Frame Rate
PAL
：
1
～
25f/s
；
NTSC
：
1
～
30f/s.
Bit Rate Main stream: User can set bit rate here to change video
quality. The large the bit rate is, the better the quality is.
Please refer to recommend bit rate for the detailed
information.
Extra stream: In CBR, the bit rate here is the max value.
In dynamic video, system needs to low frame rate or
video quality to guarantee the value. The value is null in
VBR mode.
Reference bit
rate Recommended bit rate value according to the resolution and
frame rate user have set.
I Frame Here user can set the P frame amount between two I frames.
The value ranges from 1 to 150. Default value is 50.
Recommended value is frame rate *2.
Watermark
enable
This function allows user to verify the video is tampered or not.
Here user can select watermark bit stream, watermark mode
and watermark character. Default character is DigitalCCTV. The
max length is 85-digit. The character can only include number,
character and underline.
7.9.1.3.2 Snapshot
The snapshot interface is shown as in Figure 7-26.
Figure 7-26
Please refer to the following sheet for detailed information.