twolame is about to be added to Fedora (bug #1533719). Once in, MP2 encoding support can be enabled in sox by adding BuildRequires: twolame-devel.
twolame is now in rawhide and F27, and a buildroot override is currently in place for the latter.
This bug appears to have been reported against 'rawhide' during the Fedora 28 development cycle. Changing version to '28'.
Pull request: https://src.fedoraproject.org/rpms/sox/pull-request/1 Scratch build: https://koji.fedoraproject.org/koji/taskinfo?taskID=27641045 Any objections to me making the change?
Looks fine. Merged.
Looks like it's in f29, closing.