This commit (http://svnweb.freebsd.org/changeset/ports/422140) has marked the package has broken. The code is available at https://code.google.com/archive/p/mp4v2/downloads and thus the package should not be broken.
A commit references this bug: Author: riggs Date: Sat Sep 17 13:27:05 UTC 2016 New revision: 422324 URL: https://svnweb.freebsd.org/changeset/ports/422324 Log: Un-break port; distfile is fetchable again While on it: - Add LICENSE - Use install-strip install target - Bump PORTREVISION PR: 212752 Reported by: rajil.s@gmail.com Changes: head/multimedia/mp4v2/Makefile