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python silent output

hello,
I'm a beginner with opencv and maybe the solution is obvious but
I devellope a little script in python and i need to do some screenshot on udp stream, all this part is ok but a lot of output pollute my console like

"[hevc @ 0x2ef0580] PPS id out of range: 0"
"[hevc @ 0x2f0cbc0] Could not find ref with POC 23"

Maybe there is some problems in the stream but the stream himself is working and i get my screenshots(and i'm not controling the streams) . so these information are useless and it's distubing for developpement

How to silent them or handle them properly in the python ?

I use VideoCapture to read multicast streams

Best regards