def rtsp_snapshot(rtsp_url, out_file='snap.jpg'): # use ffmpeg to grab single frame cmd = ['ffmpeg','-y','-rtsp_transport','tcp','-i',rtsp_url,'-frames:v','1',out_file] try: subprocess.run(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, timeout=10) with open(out_file,'rb') as f: return base64.b64encode(f.read()).decode() except Exception as e: return None
Managed switches often feature security protocols like IGMP Snooping, Storm Control, or strict VLAN isolation. These settings can block the broadcast and multicast packets that discovery tools use. Ensure the ports assigned to the cameras allow discovery traffic. Best Practices for Camera Network Security checkvideo ip camera scan tool
If port 554 is open, try to pull the stream using ffplay or VLC: def rtsp_snapshot(rtsp_url, out_file='snap