Apparently there is a built-in workaround for this in ffmpeg since 2013! Simply use the '-hide_banner' option.
I came across it here https://superuser.com/a/1045060. You are all very welcome :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/730159 Title: ffmpeg library configuration mismatch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ffmpeg-extra/+bug/730159/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
