If a video camera supports multistreaming, select the stream for which detection is needed (2). Selecting a low-quality video stream allows reducing the load on the Server.
If it is necessary to decode frames every 500 milliseconds or less often, in the Decode keyframes list, select Yes (3).
This setting applies to all codecs. If a codec has keyframes and p-frames, the keyframe is decoded no more often than every 500 miliseconds. For the MJPEG codec, each frame is considered to be I frame.
This feature reduces the Server load but, as can be expected, negatively impacts the quality of detection.
This setting should be activated on "blind" Servers (Servers that do not display video) on which it is necessary to perform detection.