Three video streams can be adjustable.
Resolution:
The size of image.
Frame rate:
The higher the frame rate, the video is smoother.
Bitrate type:
CBR and VBR are optional. Bitrate is related to image quality. CBR
means that no matter how much change is seen in the video scene, the compression
bitrate will be kept constant. VBR means that the compression bitrate will be
adjusted according to scene changes. For example, for scenes that do not have
much movement, the bitrate will be kept at a lower value. This can help optimize
the network bandwidth usage.
Bitrate:
it can be adjusted when the mode is set to CBR. The higher the bitrate, the
better the image quality will be.
Video Quality:
It can be adjusted when the mode is set to VBR. The higher the image
quality, the more bitrate will be required.
I Frame interval:
It determines how many frames are allowed between a “group of
pictures”. When a new scene begins in a video, until that scene ends, the entire
group of frames (or pictures) can be considered as a group of pictures. If there is
not much movement in the scene, setting the value higher than the frame rate is
fine, potentially resulting in less bandwidth usage. However, if the value is set too
high, and there is a high frequency of movement in the video, there is a risk of
frame skipping.
Video Compression:
MJPEG, H264+, H264, H264S (Smart H.264), H265, H265+ or
H265S (Smart H.265) can be optional. MJPEG is not available for main stream. If
H.265/H.265+/ H.265S is chosen, make sure the client system is able to decode
H.265/H.265+/ H.265S. Compared to H.265+/H.265, smart H.265 can spontaneously
adjust the bitrate distribution according to the requirements of the actual scene.
For example, when there is no human or vehicle detected, the bitrate will be
automatically reduced with no effect on image quality by using H.265S. Compared
to H.265, H.265+ saves more storage space with the same maximum bitrate in
most scenes. Compared to H.264, H.265 reduces the transmission bitrate under the
same resolution, frame rate and image quality.
Profile:
For H.264. Baseline, main and high profiles are selectable.
Send Snapshot:
How many snapshots to generate for an event.
Video encode slice split: If this function is enabled, smooth image can be gotten
even though using the low-performance PC.
Watermark:
When playing back the local recorded video in the search interface,
the watermark can be displayed. To enable it, check the watermark box and enter
the watermark text.
Содержание AVC NBL21M-L1
Страница 1: ...AVCNBL21M L1 2MP LPR BULLET CAMERA MANUAL ...
