$ totem '/home/doug/Desktop/amostviolentyear-nowplaying_h1080p.mkv' 
** Message: Missing plugin: gstreamer|1.0|totem|MPEG-1 Layer 3 (MP3) decoder|decoder-audio/mpeg, mpegversion=(int)1, mpegaudioversion=(int)1, layer=(int)3, parsed=(boolean)true (MPEG-1 Layer 3 (MP3) decoder)
** Message: Missing plugin: gstreamer|1.0|totem|H.264 (High Profile) decoder|decoder-video/x-h264, level=(string)4, profile=(string)high, stream-format=(string)avc, alignment=(string)au (H.264 (High Profile) decoder)
sys:1: 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.
sys:1: 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.
ERROR:org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 491, in _get_sender_name
    return_value(app.get_name())
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 462, in return_value
    raise _DefGen_Return(val)
defer._DefGen_Return: Videos

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 1403, in _install_gstreamer_resources
    confirm.add_confirm_package(pkg, install, details, score)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 363, in add_confirm_package
    score, _is_package_restricted(pkg))
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 348, in add_confirm
    desc = utils.get_package_desc(name, summary)
  File "/usr/lib/python3/dist-packages/sessioninstaller/utils.py", line 67, in get_package_desc
    if term_iter.term.startswith("XDF"):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/sessioninstaller/gstinstaller.py", line 105, in main
    installer.run()
  File "/usr/lib/python3/dist-packages/sessioninstaller/errors.py", line 70, in _convert_dbus_exception
    raise get_native_exception(error)
  File "/usr/lib/python3/dist-packages/sessioninstaller/errors.py", line 68, in _convert_dbus_exception
    return func(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/sessioninstaller/gstinstaller.py", line 83, in run
    dbus_interface=PACKAGEKIT_MODIFY_DBUS_INTERFACE)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 491, in _get_sender_name
    return_value(app.get_name())
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 462, in return_value
    raise _DefGen_Return(val)
defer._DefGen_Return: Videos

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 487, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 1403, in _install_gstreamer_resources
    confirm.add_confirm_package(pkg, install, details, score)
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 363, in add_confirm_package
    score, _is_package_restricted(pkg))
  File "/usr/lib/python3/dist-packages/sessioninstaller/core.py", line 348, in add_confirm
    desc = utils.get_package_desc(name, summary)
  File "/usr/lib/python3/dist-packages/sessioninstaller/utils.py", line 67, in get_package_desc
    if term_iter.term.startswith("XDF"):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str

** Message: Missing plugin installation failed: install-error
doug@doug-Lenovo-IdeaPad-Y510P:~$