Comment # 4 on bug 1112782 from Wolfgang Bauer

Amarok itself doesn't use/need libcodec2 at all though AFAICS.

So it seems some other lib (that's used by Amarok directly or indirectly) is
installed (maybe from a "non-standard" repo) that hasn't been rebuilt against
the latest libcodec2.

One candidate would be ffmpeg/libavcodec.

What do "ldd /usr/lib64/libavcodec58.so | grep libcodec2" and "rpm -qi
libavcodec58" say?