@anon89812132 — In my case, webcam doesnt work through vlc. I get the following error
[werunom@thinkpad ~]$ vlc v4l2:// :input-slave=alsa:// :v4l-vdev="/dev/video1"
VLC media player 3.0.11.1 Vetinari (revision 3.0.11.1-0-g52483f3ca2)
[0000564f425015b0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[00007f1df002aaf0] main decoder error: buffer deadlock prevented