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audio: Queue audio sink data to give us some headroom for about to finish events

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This commit is contained in:
Thomas Adamcik 2014-01-25 15:13:10 +01:00
parent 850b023758
commit 0cfd69432e
1 changed files with 23 additions and 3 deletions
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26
mopidy/audio/actor.py
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@ -160,15 +160,35 @@ class Audio(pykka.ThreadingActor):
def _setup_output(self): def _setup_output(self):
output_desc = self._config['audio']['output'] output_desc = self._config['audio']['output']
try: try:
output = gst.parse_bin_from_description( user_output = gst.parse_bin_from_description(
output_desc, ghost_unconnected_pads=True) output_desc, ghost_unconnected_pads=True)
self._playbin.set_property('audio-sink', output)
logger.info('Audio output set to "%s"', output_desc)
except gobject.GError as ex: except gobject.GError as ex:
logger.error( logger.error(
'Failed to create audio output "%s": %s', output_desc, ex) 'Failed to create audio output "%s": %s', output_desc, ex)
process.exit_process() process.exit_process()
output = gst.Bin('output')
# Queue element to buy use time between the about to finish event and
# the actual switch, i.e. about to switch can block for longer thanks
# to this queue.
# TODO: make the min-max values a setting?
queue = gst.element_factory_make('queue')
queue.set_property('max-size-buffers', 0)
queue.set_property('max-size-bytes', 0)
queue.set_property('max-size-time', 5 * gst.SECOND)
queue.set_property('min-threshold-time', 3 * gst.SECOND)
output.add(user_output)
output.add(queue)
queue.link(user_output)
ghost_pad = gst.GhostPad('sink', queue.get_pad('sink'))
output.add_pad(ghost_pad)
logger.info('Audio output set to "%s"', output_desc)
self._playbin.set_property('audio-sink', output)
def _setup_visualizer(self): def _setup_visualizer(self):
visualizer_element = self._config['audio']['visualizer'] visualizer_element = self._config['audio']['visualizer']
if not visualizer_element: if not visualizer_element: