class AudioPlayer(object):
STATES = {
'IDLE', 'PLAYING', 'STOPPED', 'PAUSED', 'BUFFER_UNDERRUN', 'FINISHED'
}
def __init__(self, alexa):
self.alexa = alexa
self.token = ''
self.state = 'IDLE'
self.player = Player()
self.player.add_callback('eos', self.PlaybackFinished)
self.player.add_callback('error', self.PlaybackFailed)
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "Play",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "playBehavior": "{{STRING}}",
# "audioItem": {
# "audioItemId": "{{STRING}}",
# "stream": {
# "url": "{{STRING}}",
# "streamFormat": "AUDIO_MPEG"
# "offsetInMilliseconds": {{LONG}},
# "expiryTime": "{{STRING}}",
# "progressReport": {
# "progressReportDelayInMilliseconds": {{LONG}},
# "progressReportIntervalInMilliseconds": {{LONG}}
# },
# "token": "{{STRING}}",
# "expectedPreviousToken": "{{STRING}}"
# }
# }
# }
# }
# }
def Play(self, directive):
if self.alexa.SpeechSynthesizer.state == 'PLAYING':
self.alexa.SpeechSynthesizer.wait()
behavior = directive['payload']['playBehavior']
self.token = directive['payload']['audioItem']['stream']['token']
audio_url = get_audio_url(
directive['payload']['audioItem']['stream']['url'])
self.player.play(audio_url)
self.PlaybackStarted()
logger.info('audio player is playing')
def PlaybackStarted(self):
self.state = 'PLAYING'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackStarted",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def PlaybackNearlyFinished(self):
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackNearlyFinished",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def ProgressReportDelayElapsed(self):
pass
def ProgressReportIntervalElapsed(self):
pass
def PlaybackStutterStarted(self):
pass
def PlaybackStutterFinished(self):
pass
def PlaybackFinished(self):
self.state = 'FINISHED'
logger.info('playback is finished')
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackFinished",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def PlaybackFailed(self):
self.state = 'STOPPED'
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "Stop",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# }
# }
# }
def Stop(self, directive):
if self.state == 'PLAYING' or self.state == 'PAUSED':
self.player.stop()
self.PlaybackStopped()
logger.info('audio player is stoped')
def PlaybackStopped(self):
self.state = 'STOPPED'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackStopped",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def pause(self):
self.player.pause()
self.PlaybackPaused()
logger.info('audio player is paused')
def PlaybackPaused(self):
self.state = 'PAUSED'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackPaused",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def resume(self):
self.player.resume()
self.PlaybackResumed()
logger.info('audio player is resumed')
def PlaybackResumed(self):
self.state = 'PLAYING'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackResumed",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "ClearQueue",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "clearBehavior": "{{STRING}}"
# }
# }
# }
def ClearQueue(self, directive):
self.PlaybackQueueCleared()
behavior = directive['payload']['clearBehavior']
if behavior == 'CLEAR_ALL':
self.player.stop()
elif behavior == 'CLEAR_ENQUEUED':
pass
def PlaybackQueueCleared(self):
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackQueueCleared",
"messageId": uuid.uuid4().hex
},
"payload": {}
}
self.alexa.send_event(event)
def StreamMetadataExtracted(self):
pass
@property
def context(self):
if self.state != 'PLAYING':
offset = 0
else:
offset = self.player.position
return {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackState"
},
"payload": {
"token": self.token,
"offsetInMilliseconds": offset,
"playerActivity": self.state
}
}
class Alerts(object):
STATES = {'IDLE', 'FOREGROUND', 'BACKGROUND'}
def __init__(self, alexa):
self.alexa = alexa
self.player = Player()
self.player.add_callback('eos', self.stop)
self.player.add_callback('error', self.stop)
alarm = os.path.realpath(
os.path.join(os.path.dirname(__file__), '../resources/alarm.mp3'))
self.alarm_uri = 'file://{}'.format(alarm)
self.all_alerts = {}
self.active_alerts = {}
self.state = 'IDLE'
def stop(self):
"""
Stop all active alerts
"""
for token in self.active_alerts.keys():
self.AlertStopped(token)
self.active_alerts = {}
self.state = 'IDLE'
def enter_background(self):
if self.state == 'FOREGROUND':
self.state = 'BACKGROUND'
self.player.pause()
def enter_foreground(self):
if self.state == 'BACKGROUND':
self.state = 'FOREGROUND'
self.player.resume()
def _start_alert(self, token):
if token in self.all_alerts:
self.AlertStarted(token)
# TODO: repeat play alarm until user stops it or timeout
self.player.play(self.alarm_uri)
# {
# "directive": {
# "header": {
# "namespace": "Alerts",
# "name": "SetAlert",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "token": "{{STRING}}",
# "type": "{{STRING}}",
# "scheduledTime": "2017-08-07T09:02:58+0000",
# }
# }
# }
def SetAlert(self, directive):
payload = directive['payload']
token = payload['token']
scheduled_time = dateutil.parser.parse(payload['scheduledTime'])
# Update the alert
if token in self.all_alerts:
pass
self.all_alerts[token] = payload
interval = scheduled_time - datetime.datetime.now(
scheduled_time.tzinfo)
Timer(interval.seconds, self._start_alert, (token, )).start()
self.SetAlertSucceeded(token)
def SetAlertSucceeded(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "SetAlertSucceeded",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def SetAlertFailed(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "SetAlertFailed",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
# {
# "directive": {
# "header": {
# "namespace": "Alerts",
# "name": "DeleteAlert",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "token": "{{STRING}}"
# }
# }
# }
def DeleteAlert(self, directive):
token = directive['payload']['token']
if token in self.active_alerts:
self.AlertStopped(token)
if token in self.all_alerts:
del self.all_alerts[token]
self.DeleteAlertSucceeded(token)
def DeleteAlertSucceeded(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "DeleteAlertSucceeded",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def DeleteAlertFailed(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "DeleteAlertFailed",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def AlertStarted(self, token):
if self.state == 'IDLE':
self.state = 'FOREGROUND'
self.active_alerts[token] = self.all_alerts[token]
event = {
"header": {
"namespace": "Alerts",
"name": "AlertStarted",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def AlertStopped(self, token):
if token in self.active_alerts:
del self.active_alerts[token]
if token in self.all_alerts:
del self.all_alerts[token]
if not self.active_alerts:
self.state = 'IDLE'
event = {
"header": {
"namespace": "Alerts",
"name": "AlertStopped",
"messageId": "{STRING}"
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def AlertEnteredForeground(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "AlertEnteredForeground",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
def AlertEnteredBackground(self, token):
event = {
"header": {
"namespace": "Alerts",
"name": "AlertEnteredBackground",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": token
}
}
self.alexa.send_event(event)
@property
def context(self):
return {
"header": {
"namespace": "Alerts",
"name": "AlertsState"
},
"payload": {
"allAlerts": list(self.all_alerts.values()),
"activeAlerts": list(self.active_alerts.values())
}
}
class AudioPlayer(object):
STATES = {
'IDLE', 'PLAYING', 'STOPPED', 'PAUSED', 'BUFFER_UNDERRUN', 'FINISHED'
}
def __init__(self, alexa):
self.alexa = alexa
self.token = ''
self.state = 'IDLE'
self.player = Player()
self.player.add_callback('eos', self.PlaybackFinished)
self.player.add_callback('error', self.PlaybackFailed)
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "Play",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "playBehavior": "{{STRING}}",
# "audioItem": {
# "audioItemId": "{{STRING}}",
# "stream": {
# "url": "{{STRING}}",
# "streamFormat": "AUDIO_MPEG"
# "offsetInMilliseconds": {{LONG}},
# "expiryTime": "{{STRING}}",
# "progressReport": {
# "progressReportDelayInMilliseconds": {{LONG}},
# "progressReportIntervalInMilliseconds": {{LONG}}
# },
# "token": "{{STRING}}",
# "expectedPreviousToken": "{{STRING}}"
# }
# }
# }
# }
# }
def Play(self, directive):
behavior = directive['payload']['playBehavior']
self.token = directive['payload']['audioItem']['stream']['token']
audio_url = directive['payload']['audioItem']['stream']['url']
if audio_url.startswith('cid:'):
mp3_file = os.path.join(tempfile.gettempdir(),
audio_url[4:] + '.mp3')
if os.path.isfile(mp3_file):
# os.system('mpv "{}"'.format(mp3_file))
# os.system('rm -rf "{}"'.format(mp3_file))
self.player.play('file://{}'.format(mp3_file))
self.PlaybackStarted()
else:
# os.system('mpv {}'.format(audio_url))
self.player.play(audio_url)
self.PlaybackStarted()
def PlaybackStarted(self):
self.state = 'PLAYING'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackStarted",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def PlaybackNearlyFinished(self):
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackNearlyFinished",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def ProgressReportDelayElapsed(self):
pass
def ProgressReportIntervalElapsed(self):
pass
def PlaybackStutterStarted(self):
pass
def PlaybackStutterFinished(self):
pass
def PlaybackFinished(self):
self.state = 'FINISHED'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackFinished",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def PlaybackFailed(self):
self.state = 'STOPPED'
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "Stop",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# }
# }
# }
def Stop(self, directive):
self.player.stop()
self.PlaybackStopped()
def PlaybackStopped(self):
self.state = 'STOPPED'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackStopped",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def pause(self):
self.player.pause()
self.PlaybackPaused()
def PlaybackPaused(self):
self.state = 'PAUSED'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackPaused",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
def resume(self):
self.player.resume()
self.PlaybackResumed()
def PlaybackResumed(self):
self.state = 'PLAYING'
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackResumed",
"messageId": uuid.uuid4().hex
},
"payload": {
"token": self.token,
"offsetInMilliseconds": self.player.position
}
}
self.alexa.send_event(event)
# {
# "directive": {
# "header": {
# "namespace": "AudioPlayer",
# "name": "ClearQueue",
# "messageId": "{{STRING}}",
# "dialogRequestId": "{{STRING}}"
# },
# "payload": {
# "clearBehavior": "{{STRING}}"
# }
# }
# }
def ClearQueue(self, directive):
self.PlaybackQueueCleared()
behavior = directive['payload']['clearBehavior']
if behavior == 'CLEAR_ALL':
self.player.stop()
elif behavior == 'CLEAR_ENQUEUED':
pass
def PlaybackQueueCleared(self):
event = {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackQueueCleared",
"messageId": uuid.uuid4().hex
},
"payload": {}
}
self.alexa.send_event(event)
def StreamMetadataExtracted(self):
pass
@property
def context(self):
if self.state != 'PLAYING':
offset = 0
else:
offset = self.player.position
return {
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackState"
},
"payload": {
"token": self.token,
"offsetInMilliseconds": offset,
"playerActivity": self.state
}
}