IC Realtime Flex Series: 8-CH High Performance H.264E 2U DVR with DVD-RW - Manual (Page 128)

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Reference bit
rate Recommended bit rate value according to the resolution and
frame rate you have set.
I Frame Here you 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 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 85-digit. The character can only include number,
character and underline.
7.8.1.2.2 Snapshot
The snapshot interface is shown as in Figure 7-20.
Figure 7-20
Please refer to the following sheet for detailed information.
Parameter Function
Snapshot type
There are two modes: Timing (schedule) and Event
(activation).
z
Timing snapshot is valid during the specified period you
set.
z Activation snapshot only is valid when motion detect alarm,
camera masking alarm or local activation alarm occurs.
Image size It is the same with the resolution of the main stream.
Quality
It is to set the image quality. There are six levels.
Interval
It is to set snapshot frequency. The value ranges from 1s to 7s.
Copy
Click it; you can copy current channel setup to other
channel(s).
7.8.1.2.3 Video Overlay
The video overlay interface is shown as in Figure 7-21.