I am using 20.04 GNOME. I tried to delete VLC with aptitude, which also somehow deleted h.264 decoder required to play some videos.
So I can't play videos on my machine any more. I've downloaded everything from h.264 as sudo apt install gstreamer1.0-libav, sudo add-apt-repository ppa: mc3man / trusty-media. They appear as downloaded but there is no h.264.
How do I install h.264 decoder so I can play the videos again?
