mpris-server 0.2.0

Implement MPRIS D-Bus interface in your application
Documentation

MPRIS Server

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Implement MPRIS D-Bus interface in your application.

This library provides the essential functionalities for implementing the MPRIS D-Bus interface. This enables your application to become discoverable and controllable by other MPRIS-compatible media controllers, including but not limited to GNOME Shell, KDE Plasma, and other libraries such as mpris.

This library supports all the following interfaces as defined in the specification:

To implement these interfaces, this crate offers two flavors: you can either create your own struct and implement RootInterface and PlayerInterface (or with optional TrackListInterface and PlaylistsInterface), or you can use the ready-to-use mutable Player struct.

Examples

For more detailed examples, see also the examples directory.

Manual Implementation (via Server or LocalServer)

use std::future;

use mpris_server::{
    export::{
        async_trait::async_trait,
        zbus::{fdo, Result},
    },
    Metadata, PlayerInterface, Property, RootInterface, Server, Time, Volume,
};

pub struct MyPlayer;

#[async_trait]
impl RootInterface for MyPlayer {
    async fn identity(&self) -> fdo::Result<String> {
        Ok("MyPlayer".into())
    }

    // Other methods...
}

#[async_trait]
impl PlayerInterface for MyPlayer {
    async fn set_volume(&self, volume: Volume) -> Result<()> {
        self.volume.set(volume);
        Ok(())
    }

    async fn metadata(&self) -> fdo::Result<Metadata> {
        let metadata = Metadata::builder()
            .title("My Song")
            .artist(["My Artist"])
            .album("My Album")
            .length(Time::from_micros(123))
            .build();
        Ok(metadata)
    }

    // Other methods...
}

#[async_std::main]
async fn main() {
    let server = Server::new("com.my.Application", MyPlayer).unwrap();

    // Initialize server's connection to the session bus
    server.init().await.unwrap();

    // Emit `PropertiesChanged` signal for `CanSeek` and `Metadata` properties
    server.properties_changed(Property::CanSeek | Property::Metadata).await.unwrap();

    // Emit `Seeked` signal
    server.seeked(Time::from_micros(124)).await.unwrap();

    // Prevent the program from exiting.
    future::pending::<()>().await;
}

Ready-to-use Implementation (via Player)

If you want to create a simple player without having to implement the interfaces, you can use the ready-to-use Player struct that implements those interfaces internally. This struct is mutable, automatically emits properties changed signal, and allows you to connect to method and property setter calls.

However, Player currently only supports the more commonly used org.mpris.MediaPlayer2 and org.mpris.MediaPlayer2.Player interfaces.

use mpris_server::{Player, Time};

#[async_std::main]
async fn main() {
    let player = Player::builder("com.my.Application")
        .can_play(true)
        .can_pause(true)
        .build()
        .unwrap();

    // Handle `PlayPause` method call
    player.connect_play_pause(|| {
        println!("PlayPause");
    });

    // Update `CanPlay` property and emit `PropertiesChanged` signal for it
    player.set_can_play(false).await.unwrap();

    // Emit `Seeked` signal
    player.emit_seeked(Time::from_millis(1000)).await.unwrap();

    player.init_and_run().await.unwrap();
}

License

Copyright 2023 Dave Patrick Caberto

This software is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at this site.