Best posts made by annevance

Hello,
I am trying to solve this problem with my Ubuntu 20.04 LTS. all above suggestions don't work with me.
I have the chromium codecs installed and I can find them in my /snap/chromium.....etc folder. I also can find the opera installed libffmpeg.so in my /snap/opera/current/user/lib/x86_64-linux-gnu/opera folder.
problem is I cannot remove the not working file since it is read only. Therefore i also cannot link the new one to the old one.
I don't know how to solve this. (FYI I am a kind of newbie on this linux)
Please help. Thank you.

@xZero Sorry, I did, but still no go.
I can find the original ffmpeg.so in the opera directory.
I also have your ffmpeg.so . Even when I login as admin, or sudo in terminal, the directory is "read only" and I cannot move the file.
I tried to use opera every few years, but always the same. Nice layout, clean but not suitable for drm broadcast.