128 lines
5.4 KiB
Python
128 lines
5.4 KiB
Python
import time
|
|
|
|
from platypush.backend import Backend
|
|
from platypush.context import get_plugin
|
|
from platypush.message.event.music import MusicPlayEvent, MusicPauseEvent, \
|
|
MusicStopEvent, NewPlayingTrackEvent, PlaylistChangeEvent, VolumeChangeEvent, \
|
|
PlaybackConsumeModeChangeEvent, PlaybackSingleModeChangeEvent, \
|
|
PlaybackRepeatModeChangeEvent, PlaybackRandomModeChangeEvent
|
|
|
|
|
|
class MusicMpdBackend(Backend):
|
|
"""
|
|
This backend listens for events on a MPD/Mopidy music server.
|
|
|
|
Triggers:
|
|
|
|
* :class:`platypush.message.event.music.MusicPlayEvent` if the playback state changed to play
|
|
* :class:`platypush.message.event.music.MusicPauseEvent` if the playback state changed to pause
|
|
* :class:`platypush.message.event.music.MusicStopEvent` if the playback state changed to stop
|
|
* :class:`platypush.message.event.music.NewPlayingTrackEvent` if a new track is being played
|
|
* :class:`platypush.message.event.music.PlaylistChangeEvent` if the main playlist has changed
|
|
* :class:`platypush.message.event.music.VolumeChangeEvent` if the main volume has changed
|
|
|
|
Requires:
|
|
* **python-mpd2** (``pip install python-mpd2``)
|
|
* The :mod:`platypush.plugins.music.mpd` plugin to be configured
|
|
"""
|
|
|
|
def __init__(self, server='localhost', port=6600, poll_seconds=3, **kwargs):
|
|
"""
|
|
:param poll_seconds: Interval between queries to the server (default: 3 seconds)
|
|
:type poll_seconds: float
|
|
"""
|
|
|
|
super().__init__(**kwargs)
|
|
|
|
self.server = server
|
|
self.port = port
|
|
self.poll_seconds = poll_seconds
|
|
|
|
def run(self):
|
|
super().run()
|
|
|
|
last_status = {}
|
|
last_state = None
|
|
last_track = None
|
|
last_playlist = None
|
|
|
|
while not self.should_stop():
|
|
success = False
|
|
state = None
|
|
status = None
|
|
playlist = None
|
|
track = None
|
|
|
|
while not success:
|
|
try:
|
|
plugin = get_plugin('music.mpd')
|
|
if not plugin:
|
|
raise StopIteration
|
|
|
|
status = plugin.status().output
|
|
if not status or status.get('state') is None:
|
|
raise StopIteration
|
|
|
|
track = plugin.currentsong().output
|
|
state = status['state'].lower()
|
|
playlist = status['playlist']
|
|
success = True
|
|
except Exception as e:
|
|
self.logger.debug(e)
|
|
get_plugin('music.mpd', reload=True)
|
|
if not state:
|
|
state = last_state
|
|
if not playlist:
|
|
playlist = last_playlist
|
|
if not track:
|
|
track = last_track
|
|
finally:
|
|
time.sleep(self.poll_seconds)
|
|
|
|
if state != last_state:
|
|
if state == 'stop':
|
|
self.bus.post(MusicStopEvent(status=status, track=track, plugin_name='music.mpd'))
|
|
elif state == 'pause':
|
|
self.bus.post(MusicPauseEvent(status=status, track=track, plugin_name='music.mpd'))
|
|
elif state == 'play':
|
|
self.bus.post(MusicPlayEvent(status=status, track=track, plugin_name='music.mpd'))
|
|
|
|
if playlist != last_playlist:
|
|
if last_playlist:
|
|
# XXX plchanges can become heavy with big playlists,
|
|
# PlaylistChangeEvent temporarily disabled
|
|
# changes = plugin.plchanges(last_playlist).output
|
|
# self.bus.post(PlaylistChangeEvent(changes=changes))
|
|
self.bus.post(PlaylistChangeEvent(plugin_name='music.mpd'))
|
|
last_playlist = playlist
|
|
|
|
if state == 'play' and track != last_track:
|
|
self.bus.post(NewPlayingTrackEvent(status=status, track=track, plugin_name='music.mpd'))
|
|
|
|
if last_status.get('volume', None) != status['volume']:
|
|
self.bus.post(VolumeChangeEvent(volume=int(status['volume']), status=status, track=track,
|
|
plugin_name='music.mpd'))
|
|
|
|
if last_status.get('random', None) != status['random']:
|
|
self.bus.post(PlaybackRandomModeChangeEvent(state=bool(int(status['random'])), status=status,
|
|
track=track, plugin_name='music.mpd'))
|
|
|
|
if last_status.get('repeat', None) != status['repeat']:
|
|
self.bus.post(PlaybackRepeatModeChangeEvent(state=bool(int(status['repeat'])), status=status,
|
|
track=track, plugin_name='music.mpd'))
|
|
|
|
if last_status.get('consume', None) != status['consume']:
|
|
self.bus.post(PlaybackConsumeModeChangeEvent(state=bool(int(status['consume'])), status=status,
|
|
track=track, plugin_name='music.mpd'))
|
|
|
|
if last_status.get('single', None) != status['single']:
|
|
self.bus.post(PlaybackSingleModeChangeEvent(state=bool(int(status['single'])), status=status,
|
|
track=track, plugin_name='music.mpd'))
|
|
|
|
last_status = status
|
|
last_state = state
|
|
last_track = track
|
|
time.sleep(self.poll_seconds)
|
|
|
|
# vim:sw=4:ts=4:et:
|