PUID support was removed. https://github.com/musicbrainz/picard/commit/9d131fdeffa60a2d8323b2e74c323842e1c1a641 So libofa and ffmpeg (and their USE flag) should be removed. Reproducible: Always
Also, Python 2.5 is not supported anymore, only 2.6+
Created attachment 343992 [details] picard-1.2.ebuild picard-1.2.ebuild with an optional USE flag 'acoustid', which requires /usr/bin/fpcalc fingerprint calculator to be build. The calculator is in media-libs/chromaprint-0.7 with USE="tools" (0.6 did not built for me correctly due to deprecated API somewhere)
*** Bug 465928 has been marked as a duplicate of this bug. ***
bumped, I changed a bit and simplified your ebuild, please check!