mpv-player/mpv — pull request #1298 by ravenexp (2014-11-29 17:46:32+00:00)
Title: vo_wayland: Add "multimedia" keyboard key bindings.

libxkbcommon keysyms are the same as X11 keysyms (sans prefix),
so I simply copied the missing subsection from x11_common.c.

Tested with my IR remote "keyboard" which only has these weird multimedia keys.