diff options
Diffstat (limited to 'audio.py')
-rw-r--r-- | audio.py | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/audio.py b/audio.py new file mode 100644 index 0000000..d9b69c7 --- /dev/null +++ b/audio.py @@ -0,0 +1,62 @@ +# Copyright (C) 2006, 2007, 2008 One Laptop Per Child +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +# + +import gst +import logging + +_logger = logging.getLogger('memorize-activity') + +class Audio: + def __init__(self): + self._player = gst.element_factory_make('playbin', 'player') + fakesink = gst.element_factory_make('fakesink', 'my-fakesink') + self._player.set_property('video-sink', fakesink) + self._playing = None + + bus = self._player.get_bus() + bus.add_signal_watch() + bus.connect('message', self._gstmessage_cb) + + def play(self, filename=None): + if filename: + _logger.debug('play audio %s' % filename) + self._player.set_property('uri', 'file://' + filename) + self._player.set_state(gst.STATE_NULL) + elif self._playing == None: + return + else: + _logger.debug('continue audio') + + self._player.set_state(gst.STATE_PLAYING) + self._playing = True + + def pause(self): + if self._playing != None: + _logger.debug('pause audio') + self._player.set_state(gst.STATE_PAUSED) + self._playing = False + + def stop(self): + self._player.set_state(gst.STATE_NULL) + + def _gstmessage_cb(self, bus, message): + type = message.type + + if type in (gst.MESSAGE_EOS, gst.MESSAGE_ERROR): + self._player.set_state(gst.STATE_NULL) + self._playing = None + _logger.debug('audio stoped with type %d' % type) |