Adding this as a tracker for when other stuff is complete. GStreamer :0.10 is going away, and these will need to go away in the process. dev-perl/GStreamer dev-perl/GStreamer-Interfaces
Please proceed here.
I meant of course after the old versions of the blocking bug package are gone, but I believe you maintain them enough to do so while at it :)
Masked for removal
commit 4ffc5b0d6eb7ed4a43ac2b82485be37aba66619f Author: Michał Górny <mgorny@gentoo.org> AuthorDate: Tue Apr 18 17:04:29 2017 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: Tue Apr 18 17:08:43 2017 dev-perl/GStreamer: Remove last-rited pkg, #604686 commit 345f4ea2219d07b8fb9566f754d205d16eff763d Author: Michał Górny <mgorny@gentoo.org> AuthorDate: Tue Apr 18 17:04:01 2017 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: Tue Apr 18 17:08:43 2017 dev-perl/GStreamer-Interfaces: Remove last-rited pkg, #604686