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Table 6–1
Encoding Settings
Parameter
Description
Storage Mode
Five storage modes are available: Main Stream,
Sub Stream, Main and Sub Stream, Main and
Third Stream, Sub and Third Stream.
Note:
Only certain models support all the five modes.
Capture Mode
Combinations of resolutions and frame
rates.
Note:
This parameter is effective only when the
camera is connected to the NVR via the
private protocol.
Stream Type
Normal
: main stream is intended for
scheduled recording.
Event
: main stream is intended for
recording triggered by events such as
alarm inputs or motion detection alarms.
Sub Stream
: low resolution video is
intended for local or remote real-time
monitoring.
Video Compression
Video compression standard, for example,
H.264, H.265.
The listed options depend on the standards
supported by the camera.
Resolution
Image resolution.
Bitrate Type
CBR
: Constant Bit Rate (CBR) is used to
maintain a specific bit rate by varying the
quality of video streams. CBR is
preferred when limited bandwidth is
available. The disadvantage is that video
quality will vary and may decrease
significantly with increased motion in the
scene.
VBR
: When using Variable Bit Rate (VBR),
video quality is kept as constant as
possible, at the cost of a varying bit rate,
regardless of whether or not there is
motion in the image. VBR is ideal when