Initial set-up https://www.instructables.com/id/Setting-Up-the-ELP-IP1881-Camera/

Pour streamer vers icecast et enregistrer

ffmpeg -i 'rtsp://192.168.1.80:554/user=admin&password=&channel=1&stream=o.sdp' -f webm -cluster_size_limit 2M -cluster_time_limit 5100 -content_type video/webm -c:a libvorbis -b:a 96K -c:v libvpx -b:v 0.5M -crf 30 -g 150 -deadline good -threads 4 icecast://source:pwd@domain.org:8000/pigeoncam

ffmpeg -i 'rtsp://192.168.1.80:554/user=admin&password=&channel=1&stream=o.sdp' -acodec copy -vcodec copy  -f segment -strftime 1 -segment_time 600 -segment_format mp4 pigeoncam%Y-%m-%d_%H-%M-%S.mp4