Synchronize Snapcast clients to MPD outputs

This script synchronized the muted state of Snapcast clients to the enabled state of MPD outputs.

Since MPD itself cannot currently speak the Snapcast protocol, I use this to control where the MPD output is supposed to be played (in terms of Snapcast clients) from the MPD client app while still having the advantages of synchronized playback thanks to Snapcast.

Setup

The script expects the name of the Snapcast client to match the name of the MPD output. So for example, if you have a Snapcast client named "Living Room", put the following into your mpd.conf:

audio_output {
        type            "null"
        name            "Living Room"
}

After restarting MPD, you will have an output named "Living Room" in your MPD client app. When you toggle it, this script will change the muted state of the Snapcast client of the same name, and vice versa.

If you have multiple Snapcast clients with the same name as the MPD output, behavior is undefined.

Usage

usage: main.py [-h] [-s SNAPCAST_SERVER] [-m MPD_SERVER] [-l LOGLEVEL]

optional arguments:
  -h, --help            show this help message and exit
  -s SNAPCAST_SERVER, --snapcast-server SNAPCAST_SERVER
                        'localhost'
  -m MPD_SERVER, --mpd-server MPD_SERVER
                        'localhost'
  -l LOGLEVEL, --loglevel LOGLEVEL
                        'INFO'