def _run(self):
notification_center = NotificationCenter()
try:
while True:
command = self._channel.wait()
if command.name == 'play':
self._wave_file = WaveFile(self.mixer, self.filename)
notification_center.add_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file.volume = self.volume
try:
self._wave_file.start()
except SIPCoreError, e:
notification_center.post_notification('WavePlayerDidFail', sender=self, data=TimestampedNotificationData(error=e))
break
else:
if self._current_loop == 0:
notification_center.post_notification('WavePlayerDidStart', sender=self, data=TimestampedNotificationData())
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=TimestampedNotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=self._wave_file.slot))
elif command.name == 'reschedule':
self._current_loop += 1
notification_center.remove_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file = None
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=TimestampedNotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=None))
if self.loop_count == 0 or self._current_loop < self.loop_count:
from twisted.internet import reactor
reactor.callLater(self.pause_time, self._channel.send, Command('play'))
else:
notification_center.post_notification('WavePlayerDidEnd', sender=self, data=TimestampedNotificationData())
break
elif command.name == 'stop':
if self._wave_file is not None:
notification_center.remove_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file.stop()
self._wave_file = None
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=TimestampedNotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=None))
notification_center.post_notification('WavePlayerDidEnd', sender=self, data=TimestampedNotificationData())
break
def _run(self):
notification_center = NotificationCenter()
try:
while True:
command = self._channel.wait()
if command.name == 'play':
self._wave_file = WaveFile(self.mixer, self.filename)
notification_center.add_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file.volume = self.volume
try:
self._wave_file.start()
except SIPCoreError, e:
notification_center.post_notification(
'WavePlayerDidFail',
sender=self,
data=NotificationData(error=e))
raise WavePlayerError(e)
else:
if self._current_loop == 0:
notification_center.post_notification(
'WavePlayerDidStart', sender=self)
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(
consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=self._wave_file.slot))
elif command.name == 'reschedule':
self._current_loop += 1
notification_center.remove_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file = None
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=None))
if self.loop_count == 0 or self._current_loop < self.loop_count:
reactor.callLater(self.pause_time, self._channel.send,
Command('play'))
else:
notification_center.post_notification(
'WavePlayerDidEnd', sender=self)
break
elif command.name == 'stop':
if self._wave_file is not None:
notification_center.remove_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file.stop()
self._wave_file = None
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=None))
notification_center.post_notification(
'WavePlayerDidEnd', sender=self)
break
class WavePlayer(object):
"""
An object capable of playing a WAV file. It can be used as part of an
AudioBridge as it implements the IAudioPort interface.
"""
implements(IAudioPort, IObserver)
def __init__(self,
mixer,
filename,
volume=100,
loop_count=1,
pause_time=0,
initial_delay=0):
self.mixer = mixer
self.filename = filename
self.initial_delay = initial_delay
self.loop_count = loop_count
self.pause_time = pause_time
self.volume = volume
self._channel = None
self._current_loop = 0
self._state = 'stopped'
self._wave_file = None
@property
def is_active(self):
return self._state == "started"
@property
def consumer_slot(self):
return None
@property
def producer_slot(self):
return self._wave_file.slot if self._wave_file else None
def start(self):
self.play()
@run_in_twisted_thread
def stop(self):
if self._state != 'started':
return
self._channel.send(Command('stop'))
@run_in_waitable_green_thread
def play(self):
if self._state != 'stopped':
raise WavePlayerError('already playing')
self._state = 'started'
self._channel = coros.queue()
self._current_loop = 0
if self.initial_delay:
reactor.callLater(self.initial_delay, self._channel.send,
Command('play'))
else:
self._channel.send(Command('play'))
self._run().wait()
@run_in_waitable_green_thread
def _run(self):
notification_center = NotificationCenter()
try:
while True:
command = self._channel.wait()
if command.name == 'play':
self._wave_file = WaveFile(self.mixer, self.filename)
notification_center.add_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file.volume = self.volume
try:
self._wave_file.start()
except SIPCoreError, e:
notification_center.post_notification(
'WavePlayerDidFail',
sender=self,
data=NotificationData(error=e))
raise WavePlayerError(e)
else:
if self._current_loop == 0:
notification_center.post_notification(
'WavePlayerDidStart', sender=self)
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(
consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=self._wave_file.slot))
elif command.name == 'reschedule':
self._current_loop += 1
notification_center.remove_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file = None
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=None))
if self.loop_count == 0 or self._current_loop < self.loop_count:
reactor.callLater(self.pause_time, self._channel.send,
Command('play'))
else:
notification_center.post_notification(
'WavePlayerDidEnd', sender=self)
break
elif command.name == 'stop':
if self._wave_file is not None:
notification_center.remove_observer(
self,
sender=self._wave_file,
name='WaveFileDidFinishPlaying')
self._wave_file.stop()
self._wave_file = None
notification_center.post_notification(
'AudioPortDidChangeSlots',
sender=self,
data=NotificationData(consumer_slot_changed=False,
producer_slot_changed=True,
old_producer_slot=None,
new_producer_slot=None))
notification_center.post_notification(
'WavePlayerDidEnd', sender=self)
break
class WavePlayer(object):
"""
An object capable of playing a WAV file. It can be used as part of an
AudioBridge as it implements the IAudioPort interface.
"""
implements(IAudioPort, IObserver)
def __init__(self, mixer, filename, volume=100, loop_count=1, pause_time=0, initial_delay=0):
self.mixer = mixer
self.filename = filename
self.initial_delay = initial_delay
self.loop_count = loop_count
self.pause_time = pause_time
self.volume = volume
self._channel = None
self._current_loop = 0
self._state = 'stopped'
self._wave_file = None
@property
def is_active(self):
return self._state == "started"
@property
def consumer_slot(self):
return None
@property
def producer_slot(self):
return self._wave_file.slot if self._wave_file else None
def start(self):
self.play()
@run_in_twisted_thread
def stop(self):
if self._state != 'started':
return
self._channel.send(Command('stop'))
@run_in_waitable_green_thread
def play(self):
if self._state != 'stopped':
raise WavePlayerError('already playing')
self._state = 'started'
self._channel = coros.queue()
self._current_loop = 0
if self.initial_delay:
reactor.callLater(self.initial_delay, self._channel.send, Command('play'))
else:
self._channel.send(Command('play'))
self._run().wait()
@run_in_waitable_green_thread
def _run(self):
notification_center = NotificationCenter()
try:
while True:
command = self._channel.wait()
if command.name == 'play':
self._wave_file = WaveFile(self.mixer, self.filename)
notification_center.add_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file.volume = self.volume
try:
self._wave_file.start()
except SIPCoreError, e:
notification_center.post_notification('WavePlayerDidFail', sender=self, data=NotificationData(error=e))
raise WavePlayerError(e)
else:
if self._current_loop == 0:
notification_center.post_notification('WavePlayerDidStart', sender=self)
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=NotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=self._wave_file.slot))
elif command.name == 'reschedule':
self._current_loop += 1
notification_center.remove_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file = None
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=NotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=None))
if self.loop_count == 0 or self._current_loop < self.loop_count:
reactor.callLater(self.pause_time, self._channel.send, Command('play'))
else:
notification_center.post_notification('WavePlayerDidEnd', sender=self)
break
elif command.name == 'stop':
if self._wave_file is not None:
notification_center.remove_observer(self, sender=self._wave_file, name='WaveFileDidFinishPlaying')
self._wave_file.stop()
self._wave_file = None
notification_center.post_notification('AudioPortDidChangeSlots', sender=self, data=NotificationData(consumer_slot_changed=False, producer_slot_changed=True,
old_producer_slot=None, new_producer_slot=None))
notification_center.post_notification('WavePlayerDidEnd', sender=self)
break
