How to reduce the CPU load?

[Baisangur]

To reduce the CPU load, the following is recommended:

1. Use different video camera streams for the purposes of displaying the video signal on the Video Surveillance Monitor, recording to the archive, and using video analytics. By doing this, you can, for example, display a lower quality video on the Monitor, and record a higher quality video to the archive.

   Complete guide: Configuration of multistream video

2. Use automatic selection of video camera streams to display the video signal on the Video Surveillance Monitor.

   Complete guide: Configuring an auto select of video stream for displaying

[samuelharris]

The split between monitor, archive, and analytics streams seems like the most practical lever here. Using a lower-resolution stream for live viewing while recording the higher-quality one keeps the archive useful without making the monitor path expensive. Auto-selection also makes sense where camera loads vary, though it would be worth checking how quickly it switches and whether it can cause visible quality changes during motion. Does the load reduction come mainly from decoding fewer pixels, or is there also a gain from avoiding duplicate processing of the same stream?