User's Manual

User’s Manual
54
Parameter
Description
Smart Codec
Enable
Smart Codec
to improve video compressibility and save storage
space.
After
Smart Codec
is enabled, the Device does not support the third
stream, ROI, smart event, and other functions. The actual interface shall
prevail.
Resolution
Multiple resolution types are available for you to choose, and each type
corresponds to a unique recommended stream value.
Frame Rate
(FPS)
PAL: 1–25 frames/s or 1–50 frames/s. The frame rate changes with the
resolution.
Bit Rate Type
There are two options:
CBR
(constant bit rate) and
VBR
(variable bit
rate).
● Image quality can be set only in
VBR
mode, and cannot be set in
CBR
mode.
● In
MJPEG
encode mode,
CBR
is the only option for
Bit Rate Type
.
Reference Bit
Rate
The recommended bit rate range is based on the resolution and frame
rate.
Bit Rate
It is the upper limit of stream in VBR. In CBR, the value is fixed.
I Frame Interval
The number of P frames between two I frames. The range varies with
the frame rate, and the maximum value is 150. It is recommended to set
the interval twice the frame rate.
SVC
Layered encoding can be done for FPS. SVC is a scalable encoding
method on time domain. It is 1 by default, which means no layered
coding. You can set 2, 3 or 4 layered encoding.
Watermark
Settings
You can verify the watermark to check if the video has been tampered.
Watermark
Character
You can verify the watermark to check if the video has been tampered.
Select
Watermark Settings
check box to enable
Watermark
Character
. The watermark character is
DigitalCCTV
by default, and you
can modify it.
Watermark character consists of up to 128 characters from letters,
standard symbols, spaces, and special characters.
Step 3 Click
Save
.
5.1.2.2 Snapshot
This section describes how to set streams for snapshots.
Step 1 Select
Setting
>
Camera
>
Video
>
Snapshot
.