After some while of working, ZM eats all system memory causing CPU to goes to 100%.
Limit resurces in systemd service:
sudo systemctl edit zoneminder.service
[Service] MemorySwapMax=0 MemoryHigh=5G MemoryMax=6G TimeoutStopSec=30
systemctl daemon-reload systemctl stop zoneminder.service systemctl start zoneminder.service
systemctl status zoneminder
valgrind –leak-check=full ffmpeg -rtsp_transport tcp -i rtsp:192.168.177.187/ch0_0.h264 -f null -