Alternative to "Media Player Classic" on Windows.
IMO much more intuitive controls than VLC, for instance left right arrows move you along the video.
Available in the Ubuntu repos.
Also there's a really nice feature Audio -> Filters -> Volume Normalization that works very well and for which I've found no equivalent atm.
Works on i386, amd64 but I'm not able to test on arm ppc etc.
ouroumov@Box:~/Desktop$ apt-cache policy smplayer
smplayer:
Installed: 15.11.0~ds0-1
Candidate: 15.11.0~ds0-1
Version table:
*** 15.11.0~ds0-1 500
500 http://fr.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
100 /var/lib/dpkg/status
ouroumov@Box:~/Desktop$ apt-cache depends smplayer
smplayer
|Depends: mpv
mpv:i386
Depends: mplayer
mplayer:i386
Depends: libc6
Depends: libgcc1
Depends: libqt5core5a
Depends: libqt5dbus5
|Depends: libqt5gui5
Depends: libqt5gui5-gles
Depends: libqt5network5
Depends: libqt5script5
Depends: libqt5widgets5
Depends: libqt5xml5
Depends: libstdc++6
Depends: zlib1g
Recommends: smplayer-themes
Recommends: smplayer-l10n
Screenshot working on Ubuntu MATE 16.04: