Thompson mp3PRO plugin for XMMS

Has anyone ever successfully got the Thompson mp3PRO plugin for XMMS to work under Fedora 30? I have copied the plugin from /usr/lib/xmms/Input/libmp3PRO.so but XMMS doesn’t find it in the plugin list?

I have a set of irreplaceable mp3PRO files I would like to play without the downgrade of libmpg123. Does libmp3lame fully decode or downgrade?

rel:
https://www.thanassis.space/mp3pro.html
http://www.rarewares.org/rrw/ctmp3pro.php
https://web.archive.org/web/20050712020233/http://www.mp3prozone.com:80/index.htm