Osd Configuration - Digital Watchdog MegaPix DWC-MVT4WiA User Manual

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
width 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: H264 and H265 are optional. If H.265 is chosen, make sure the
client system is able to decode H.265.
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.
Audio Encoding: G711A and G711U are selectable.
Audio Type: MIC and LIN are selectable.

7.2.3 OSD Configuration

Go to Image→OSD interface as shown below.
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