About MPRIS

The Media Player Remote Interfacing Specification is a standard D-Bus

interface which aims to provide a common programmatic API for

controlling media players.

It provides a mechanism for discovery, querying and basic playback

control of compliant media players, as well as a tracklist interface

which is used to add context to the active media item.

man playerctl

DESCRIPTION

The playerctl utility controls MPRIS-enabled media players. In

addition to offering play, pause and stop control, playerctl also offers

previous and next track support, the ability to seek backwards and

forwards in a track, and volume control. playerctl also supports

displaying metadata (e.g., artist, title, album) for the current track,

and showing the status of the player.

Players that can be controlled using playerctl include audacious(1),

cmus(1), mopidy(1), mpd(1), quodlibet(1), rhythmbox(1), vlc(1) and

xmms2(1). However, any player that implements the MPRIS interface

specification can be controlled using playerctl including web

browsers.

Command Summary

"playerctl status" Get the current status of the player.

"playerctl play" Command the player to play.

"playerctl pause" Command the player to pause.

"playerctl play-pause" Command the player to toggle between play and

pause.

"playerctl stop" Command the player to stop.

"playerctl next" Command the player to skip to the next track.

"playerctl previous" Command the player to skip to the previous

track.

Links

https://support.mozilla.org/en-US/kb/control-audio-or-video-playback-your-keyboard

https://specifications.freedesktop.org/mpris-spec/2.2/

https://www.addictivetips.com/ubuntu-linux-tips/fix-media-keys-not-working-on-linux/