async def main():
print('Jukebox Pi')
signal.signal(signal.SIGINT, signal_handler)
client = MPDClient()
atexit.register(client.disconnect)
lcd = LCD(make_callback(client))
lcd.turn_on()
atexit.register(lcd.stop)
clock = Clock(lcd)
atexit.register(clock.stop)
try:
await client.connect('localhost', 6600)
except Exception as e:
print('Connection to MPD failed:', e)
return
print('Connected to MPD version ', client.mpd_version)
current_status = await get_status(client)
show_track(lcd, clock, {}, current_status)
async for _ in client.idle(['player']):
status = await get_status(client)
print(status)
show_track(lcd, clock, current_status, status)
current_status = status
async def main():
print("Create MPD client")
client = MPDClient()
# Not necessary, but should not cause any trouble either
client.disconnect()
try:
await client.connect('localhost', 6600)
except Exception as e:
print("Connection failed:", e)
return
print("Connected to MPD version", client.mpd_version)
try:
status = await client.status()
except Exception as e:
print("Status error:", e)
return
else:
print("Status success:", status)
print(list(await client.commands()))
import time
start = time.time()
for x in await client.listall():
print("sync:", x)
print("Time to first sync:", time.time() - start)
break
start = time.time()
async for x in client.listall():
print("async:", x)
print("Time to first async:", time.time() - start)
break
try:
await client.addid()
except Exception as e:
print("An erroneous command, as expected, raised:", e)
try:
async for x in client.plchangesposid():
print("Why does this work?")
except Exception as e:
print(
"An erroneous asynchronously looped command, as expected, raised:",
e)
i = 0
async for subsystem in client.idle():
print("Idle change in", subsystem)
i += 1
if i > 5:
print("Enough changes, quitting")
break
class MPDConnection:
def __init__(self, host, port):
self.host = host
self.port = port
self.mpd = MPDClient()
self._playlist_empty = asyncio.Event()
self._adding_song = False
async def start(self):
await self.mpd.connect(self.host, self.port)
asyncio.ensure_future(self._event_loop())
async def wait_for_song(self):
'''Returns when the playlist is empty'''
await self._playlist_empty.wait()
def is_ready(self):
'''Immediately returns true if the playlist is empty, false otherwise.'''
return self._playlist_empty.is_set()
async def add_to_playlist(self, url):
if self._adding_song:
raise Exception
self._adding_song = True
self._playlist_empty.clear()
print()
print(url)
print()
try:
await self.mpd.add(url)
await self.mpd.play()
except mpd.CommandError:
pass
self._adding_song = False
async def skip(self):
await self.mpd.clear()
async def _event_loop(self):
while True:
status = await self.mpd.status()
if status['playlistlength'] == '0':
if not self._adding_song:
self._playlist_empty.set()
else:
self._playlist_empty.clear()
async for subsystems in self.mpd.idle():
if 'playlist' in subsystems or 'player' in subsystems:
break
async def main():
print("Create MPD client")
client = MPDClient()
try:
await client.connect('localhost', 6600)
except Exception as e:
print("Connection failed:", e)
return
print("Connected to MPD version", client.mpd_version)
try:
status = await client.status()
except Exception as e:
print("Status error:", e)
return
else:
print("Status success:", status)
print(list(await client.commands()))
import time
start = time.time()
for x in await client.listall():
print("sync:", x)
print("Time to first sync:", time.time() - start)
break
start = time.time()
async for x in client.listall():
print("async:", x)
print("Time to first async:", time.time() - start)
break
try:
await client.addid()
except Exception as e:
print("An erroneous command, as expected, raised:", e)
try:
async for x in client.plchangesposid():
print("Why does this work?")
except Exception as e:
print("An erroneous asynchronously looped command, as expected, raised:", e)
i = 0
async for subsystem in client.idle():
print("Idle change in", subsystem)
i += 1
if i > 5:
print("Enough changes, quitting")
break
class MpdSnapcastSyncer:
def __init__(self, loop):
self._logger = logging.getLogger(self.__class__.__name__)
self._loop = loop
self.mpd_outputs = {}
async def setup(self, snapcast_server: str, mpd_server: str) -> None:
snapcast_task = asyncio.create_task(self.setup_snapcast(snapcast_server))
mpd_task = asyncio.create_task(self.setup_mpd(mpd_server))
await snapcast_task
await mpd_task
def snapcast_client_changed(self, client: snapcast.control.client.Snapclient) -> None:
self._loop.create_task(self.async_snapcast_client_changed(client))
async def async_snapcast_client_changed(self, client: snapcast.control.client.Snapclient) -> None:
name = client.friendly_name
try:
output = self.mpd_outputs[name]
except KeyError:
# there is no output named like this Snapcast client, ignore event
self._logger.debug('Ignoring change of snapcast client %s: No matching MPD output' % name)
return
if output.enabled != client.muted:
# If the output is not enabled and the client is muted (or vice
# versa), everything is fine.
return
self._logger.info('Turning %s MPD output %s' % (
'off' if client.muted else 'on',
name
))
# determine which method to call
actor = self.mpd.disableoutput if client.muted else self.mpd.enableoutput
# fake stored state of the output to avoid calling
# mpd_output_changed() from mpd_outputs_changed() when MPD notifies us
# about our own change
self.mpd_outputs[name].enabled = not self.mpd_outputs[name].enabled
# call actual actor method
await actor(output.id)
async def mpd_outputs_changed(self) -> None:
async for output in self.mpd.outputs():
output = MPDOutput(output)
try:
# find stored data about this output
old_output = self.mpd_outputs[output.name]
except KeyError:
# the output didn't exist before, don't trigger any action
pass
else:
if output.enabled != old_output.enabled:
# the output's enabled state changed
await self.mpd_output_changed(output)
# update our stored copy of output data
self.mpd_outputs[output.name] = output
async def mpd_output_changed(self, output: dict) -> None:
for client in self.snapcast.clients:
if client.friendly_name != output.name:
continue
self._logger.info('%s snapcast client %s (%s)' % (
'Unmuting' if output.enabled else 'Muting',
output.name,
client.identifier
))
await client.set_muted(not output.enabled)
return
else:
self._logger.debug('Ignoring change of MPD output %s: No matching snapcast client' % output.name)
async def setup_snapcast(self, snapcast_server: str) -> None:
self.snapcast = await snapcast.control.create_server(
self._loop,
snapcast_server,
)
for client in self.snapcast.clients:
client.set_callback(self.snapcast_client_changed)
self._logger.debug('Set callback for snapcast client %s' % client.friendly_name)
async def setup_mpd(self, mpd_server: str) -> None:
self.mpd = MPDClient()
await self.mpd.connect(mpd_server)
# get initial state of outputs
async for output in self.mpd.outputs():
output = MPDOutput(output)
self.mpd_outputs[output.name] = output
# add idle command to to event loop
self._loop.create_task(self.listen_mpd())
async def listen_mpd(self) -> None:
async for event in self.mpd.idle(['output']):
await self.mpd_outputs_changed()
