POSTIN

/bin/sh

update-alternatives --install /usr/lib64/totem-plugin-viewer totem-mozilla /usr/lib64/totem-plugin-viewer-gstreamer 10

POSTUN

/bin/sh

if [ "$1" = "0" ]; then
  update-alternatives --remove totem-plugin-viewer /usr/lib64/totem-plugin-viewer-gstreamer
fi