def __init__(self, source_group, player):
super(SilentAudioPlayerPacketConsumer, self).__init__(source_group, player)
# System time of first timestamp
self._timestamp_time = None
# List of buffered SilentAudioPacket
self._packets = []
self._packets_duration = 0
self._events = []
# Actual play state.
self._playing = False
# TODO Be nice to avoid creating this thread if user doesn't care
# about EOS events and there's no video format.
# NOTE Use thread.condition as lock for all instance vars used by worker
self._thread = MediaThread(target=self._worker_func)
if source_group.audio_format:
self._thread.start()
