83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
"""Drivers for playing back media."""
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import atexit
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import pyglet
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_debug = pyglet.options['debug_media']
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def get_audio_driver():
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"""Get the preferred audio driver for the current platform.
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Currently pyglet supports DirectSound, PulseAudio and OpenAL drivers. If
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the platform supports more than one of those audio drivers, the
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application can give its preference with :data:`pyglet.options` ``audio``
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keyword. See the Programming guide, section
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:doc:`/programming_guide/media`.
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Returns:
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AbstractAudioDriver : The concrete implementation of the preferred
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audio driver for this platform.
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"""
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global _audio_driver
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if _audio_driver:
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return _audio_driver
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_audio_driver = None
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for driver_name in pyglet.options['audio']:
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try:
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if driver_name == 'pulse':
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from . import pulse
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_audio_driver = pulse.create_audio_driver()
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break
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elif driver_name == 'xaudio2':
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if pyglet.compat_platform in ('win32', 'cygwin'):
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from pyglet.libs.win32.constants import WINDOWS_8_OR_GREATER
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if WINDOWS_8_OR_GREATER:
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from . import xaudio2
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_audio_driver = xaudio2.create_audio_driver()
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break
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elif driver_name == 'directsound':
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if pyglet.compat_platform in ('win32', 'cygwin'):
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from . import directsound
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_audio_driver = directsound.create_audio_driver()
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break
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elif driver_name == 'openal':
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from . import openal
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_audio_driver = openal.create_audio_driver()
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break
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elif driver_name == 'silent':
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from . import silent
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_audio_driver = silent.create_audio_driver()
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break
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except Exception:
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if _debug:
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print(f'Error importing driver {driver_name}:')
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import traceback
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traceback.print_exc()
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else:
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from . import silent
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_audio_driver = silent.create_audio_driver()
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return _audio_driver
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def _delete_audio_driver():
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# First cleanup any remaining spontaneous Player
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from .. import Source
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for p in Source._players:
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# Remove the reference to _on_player_eos which had a closure on the player
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p.on_player_eos = None
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del p
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del Source._players
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global _audio_driver
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_audio_driver = None
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_audio_driver = None
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atexit.register(_delete_audio_driver)
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