SFTP protocol source cannot be found

[Dan Kortschak]

Trying to play a video over SFTP fails, with Totem giving a pop-up:

"""
Required plugin could not be found

Videos requires to install plugins to support the following multimedia feature: SFTP protocol source
"""

There does not seem to be any package that fits this description in the apt repos. Trying from the command line with a local terminal I get the following:

"""
/run/user/1000/gvfs/sftp:host=nas.local/Videos $ totem GOPR0210.MP4
** Message: Missing plugin: gstreamer|1.0|totem|SFTP protocol source|urisource-sftp (SFTP protocol source)
/usr/lib/python3/dist-packages/sessioninstaller/core.py:47: PyGIWarning: Gst was imported without specifying a version first. Use gi.require_version('Gst', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gst
/usr/lib/python3/dist-packages/sessioninstaller/core.py:48: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
Falling back to package information
CRITICAL:Could not find any packages to operate on
"""

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libgstreamer1.0-0 1.8.2-1~ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Sep 16 19:28:29 2016
InstallationDate: Installed on 2016-06-07 (100 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: gstreamer1.0
UpgradeStatus: No upgrade log present (probably fresh install)