Add backports

src/freedombone-image-customise

@@ -619,6 +619,17 @@ function configure_user_interface {
 		return
 	fi
 
+	if [ ! $DEBIAN_REPO ]; then
+		DEBIAN_REPO='ftp.de.debian.org'
+	fi
+	if [ ! $DEBIAN_VERSION ]; then
+		DEBIAN_VERSION='jessie'
+	fi
+
+	# install backports
+	echo "deb http://${DEBIAN_REPO}/debian/ ${DEBIAN_VERSION}-backports main" >> $rootdir/etc/apt/sources.list
+	chroot "$rootdir" apt-get -y update
+
 	# desktop
 	chroot "$rootdir" apt-get -y install mate-desktop-environment
 
@@ -628,6 +639,9 @@ function configure_user_interface {
 	# for tomb
 	chroot "$rootdir" apt-get -y install pinentry-gtk2
 
+	# for tox video
+	chroot "$rootdir" apt-get -y install ffmpeg
+
 	if [[ $VARIANT != "usb" ]]; then
 		# log in automatically
 		chroot "$rootdir" apt-get -y install nodm xinit