www.makemkv.com

I have the version (1.9.5) that comes from the Fedora repo, but I have a BD telling me to use a newer version.
I have downloaded 1.9.6 and am trying to build, but missing some dependencies.
I have found most, but oss configure is complaining:

configure: error: No package 'libavcodec' found
No package 'libavutil' found.

I have tried every permutation in dnf for libav*, but no joy.
Can someone tell me what it is looking for (possibly what else I may trip over once I have it)?

I think libavcodec is part of ffmpeg-devel

Thanks, that cleared that issue, now it is complaining about:
configure: error: Qt library (version 5 or 4) is required to build GUI

However, may be moot as I ran dnf update and it looks like it is installing the later version of makemkv.
Funny, the GUI update showed now updates available.