/usr/share/gstreamer-1.0/ is in pitivi 0.99-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gstreamer-1.0/encoding-profiles/
/usr/share/gstreamer-1.0/encoding-profiles/device/
/usr/share/gstreamer-1.0/encoding-profiles/device/dvd.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/avi.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/flv.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/mkv.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/mp3.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/mp4.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/oga.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/ogv.gep
/usr/share/gstreamer-1.0/encoding-profiles/file-extension/webm.gep
/usr/share/gstreamer-1.0/encoding-profiles/online-services/
/usr/share/gstreamer-1.0/encoding-profiles/online-services/youtube.gep