Comment 8 for bug 1916301

I will try this soon. I can see that this libavcodec57 is from universe repositories. Is it safe program? Why Ubuntu don't have installed this by default? Is it licence problem? Second question is to updates for libavcodec57 after April 2021 year. This is from Universe repositories so this package will be not get updates in the future? This is very important for me because I want to have bionic and I want to not migrate to focal.