mpd
For Linux platform (e.g. Raspbian) the following command installs 'mpd' player in folder /usr/bin
sudo apt-get install mpd
For debugging and updating 'mpd' dictionary it's recommended to install 'mpc' as well. This is a command line client for 'mpd'. To install 'mpc' run this command:
sudo apt-get install mpc
Set 'mpd' mixer type to 'software' to control volume from Peppy UI. For that uncomment the line with mixer_type in file /etc/mpd.conf:
audio_output {
type "alsa"
name "My ALSA Device"
# device "hw:0,0" # optional
mixer_type "software" # optional
# mixer_device "default" # optional
# mixer_control "PCM" # optional
# mixer_index "0" # optional
After installing 'mpd' it's automatically configured as a service and it will start every time the Raspberry Pi starts. In order to have full control on 'mpd' player it's better to stop 'mpd' service and disable it from starting upon system startup
sudo service mpd stop
sudo update-rc.d mpd disable
The following example shows parameters which should be added to the audio section of the config.txt file in order to use mpd on Linux platform:
[audio]
server.folder = /usr/bin
server.command = mpd
client.name = mpdsocket
music.folder = /music
The following example shows parameters which should be added to the audio section of the config.txt file in order to use mpd on Windows platform:
[audio]
server.folder = C:\mpd-0.17.4-win32\bin
server.command = mpd mpd.conf
client.name = mpdsocket
music.folder = C:\music
To use file playback functionality with 'mpd' the property music.folder in config.txt should be set to the same value as property music_directory in mpd.conf file.
Peppy player doesn't update mpd's dictionary. Therefore don't forget to run command 'mpc update' whenever new folder/file was added to the music directory.
The communication with 'mpd' player includes commands which UI sends to the player and notifications which player sends back to UI. The following diagram shows how this communication was implemented:
