mpris2 package¶

Submodules¶

Module contents¶

This is a copy of mprisV2.2 documentation

http://specifications.freedesktop.org/mpris-spec/latest/

That also works as python lib.

Version 2.2¶

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

About¶

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 compliant media players discovery, basic playback and media player state control as well as a tracklist interface which is used to add context to the current item.

Changes¶

Changes (Permalink)

From 2.1 to 2.2:

Added the optional Fullscreen and CanSetFullscreen properties to the org.mpris.MediaPlayer2 interface.
The path /org/mpris/MediaPlayer2/TrackList/NoTrack now represents “no track” where required in the org.mpris.MediaPlayer2.TrackList interface (since empty paths are not allowed by D-Bus).
The suggested unique instance identifier no longer violates the D-Bus specification by begining with a digit.

From 2.0 to 2.1:

Added the optional org.mpris.MediaPlayer2.Playlists interface.

Bus Name Policy¶

Each media player must request a unique bus name which begins with org.mpris.MediaPlayer2. For example:

org.mpris.MediaPlayer2.audacious
org.mpris.MediaPlayer2.vlc
org.mpris.MediaPlayer2.bmp
org.mpris.MediaPlayer2.xmms2

This allows clients to list available media players (either already running or which can be started via D-Bus activation)

In the case where the media player allows multiple instances running simultaneously, each additional instance should request a unique bus name, adding a dot and a unique identifier to its usual bus name, such as one based on a UNIX process id. For example, this could be:

org.mpris.MediaPlayer2.vlc.7389

Note: According to the D-Bus specification, the unique identifier “must only contain the ASCII characters ‘[A-Z][a-z][0-9]_-‘” and “must not begin with a digit”.

Entry point¶

The media player must expose the /org/mpris/MediaPlayer2 object path, which must implement the following interfaces:

The /org/mpris/MediaPlayer2 object may implement the org.mpris.MediaPlayer2.TrackList interface.

The /org/mpris/MediaPlayer2 object may implement the org.mpris.MediaPlayer2.Playlists interface.

The PropertiesChanged signal¶

The MPRIS uses the org.freedesktop.DBus.Properties.PropertiesChanged signal to notify clients of changes in the media player state. If a client implementation uses D-Bus bindings which do not support this signal, then it should connect to it manually. If a media player implementation uses D-Bus bindings which do not support this signal, then it should send it manually

Corrections¶

2010-09-26: Added EmitsChangedSignal annotation to Volume property on the Player interface.

2011-01-26: Added PlaylistChanged signal to the Playlists interface.