/usr/lib/x86_64-linux-gnu/perl5/ is in libgstreamer-interfaces-perl 0.06-2+b2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.20/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/GStreamer/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/GStreamer/Interfaces/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/GStreamer/Interfaces/Interfaces.so
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/gstinterfacesperl.typemap
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/Files.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/gstinterfacesperl-autogen.h
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/gstinterfacesperl-version.h
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces/Install/gstinterfacesperl.h
/usr/lib/x86_64-linux-gnu/perl5/5.20/GStreamer/Interfaces.pm