102 lines
2.6 KiB
Python
102 lines
2.6 KiB
Python
'''
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Audio Gstplayer
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===============
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.. versionadded:: 1.8.0
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Implementation of a VideoBase with Kivy :class:`~kivy.lib.gstplayer.GstPlayer`
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This player is the preferred player, using Gstreamer 1.0, working on both
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Python 2 and 3.
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'''
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from kivy.lib.gstplayer import GstPlayer, get_gst_version
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from kivy.core.audio import Sound, SoundLoader
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from kivy.logger import Logger
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from kivy.compat import PY2
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from kivy.clock import Clock
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from os.path import realpath
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if PY2:
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from urllib import pathname2url
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else:
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from urllib.request import pathname2url
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Logger.info('AudioGstplayer: Using Gstreamer {}'.format(
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'.'.join(map(str, get_gst_version()))))
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def _on_gstplayer_message(mtype, message):
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if mtype == 'error':
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Logger.error('AudioGstplayer: {}'.format(message))
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elif mtype == 'warning':
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Logger.warning('AudioGstplayer: {}'.format(message))
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elif mtype == 'info':
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Logger.info('AudioGstplayer: {}'.format(message))
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class SoundGstplayer(Sound):
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@staticmethod
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def extensions():
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return ('wav', 'ogg', 'mp3', 'm4a', 'flac', 'mp4')
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def __init__(self, **kwargs):
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self.player = None
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super(SoundGstplayer, self).__init__(**kwargs)
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def _on_gst_eos_sync(self):
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Clock.schedule_once(self._on_gst_eos, 0)
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def _on_gst_eos(self, *dt):
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if self.loop:
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self.player.stop()
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self.player.play()
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else:
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self.stop()
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def load(self):
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self.unload()
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uri = self._get_uri()
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self.player = GstPlayer(uri, None, self._on_gst_eos_sync,
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_on_gstplayer_message)
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self.player.load()
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def play(self):
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# we need to set the volume everytime, it seems that stopping + playing
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# the sound reset the volume.
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self.player.set_volume(self.volume)
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self.player.play()
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super(SoundGstplayer, self).play()
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def stop(self):
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self.player.stop()
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super(SoundGstplayer, self).stop()
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def unload(self):
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if self.player:
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self.player.unload()
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self.player = None
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def seek(self, position):
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self.player.seek(position / self.length)
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def get_pos(self):
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return self.player.get_position()
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def _get_length(self):
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return self.player.get_duration()
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def on_volume(self, instance, volume):
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self.player.set_volume(volume)
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def _get_uri(self):
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uri = self.source
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if not uri:
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return
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if '://' not in uri:
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uri = 'file:' + pathname2url(realpath(uri))
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return uri
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SoundLoader.register(SoundGstplayer)
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