Source files of this package contain a "mpeg2enc" license notice, see attachment 344826 [details]. Debian's discussion of mpeg2enc is here: http://lists.debian.org/debian-mentors/2007/07/msg00077.html I agree with their conclusion: "You cannot assume that you are allowed to distribute it, copy it, package it, modify it or even use it. Lack of a licence indicates full copyright protection, i.e. All Rights Reserved. You have no rights to do anything with this software without explicit consent from the copyright holders." So it looks like mirror (and bindist) restriction is needed.
+ 20 Apr 2013; Ulrich Müller <ulm@gentoo.org> mpeg2vidcodec-12-r1.ebuild: + Fix LICENSE, see COPYING file, bug 465088. Must not be redistributed, + therefore add mirror and bindist restrictions. Update SRC_URI. +