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323 lines
9.8 KiB
Python
323 lines
9.8 KiB
Python
# Copyright (C) 2011 One Laptop Per Child
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import os
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import logging
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from gettext import gettext as _
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from gi.repository import Gio
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from gi.repository import Gst
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from gi.repository import Gtk
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from gi.repository import Gdk
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from gi.repository import GObject
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from sugar3 import power
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DEFAULT_PITCH = 0
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DEFAULT_RATE = 0
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_SAVE_TIMEOUT = 500
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# This voice names are use dto allow the translation of the voice names.
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# If espeak add new voices, we need update this list.
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translated_espeak_voices = {
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'af': _('Afrikaans'),
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'an': _('Aragonese'),
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'bg': _('Bulgarian'),
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'bs': _('Bosnian'),
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'ca': _('Catalan'),
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'cs': _('Czech'),
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'cy': _('Welsh'),
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'da': _('Danish'),
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'de': _('German'),
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'el': _('Greek'),
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'en': _('Default'),
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'en_gb': _('English Britain'),
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'en_sc': _('English scottish'),
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'en_uk-north': _('English-north'),
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'en_uk-rp': _('English_rp'),
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'en_uk-wmids': _('English_wmids'),
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'en_us': _('English USA'),
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'en_wi': _('English west indies'),
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'eo': _('Esperanto'),
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'es': _('Spanish'),
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'es_la': _('Spanish latin american'),
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'et': _('Estonian'),
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'fa': _('Farsi'),
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'fa_pin': _('Farsi-pinglish'),
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'fi': _('Finnish'),
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'fr_be': _('French belgium'),
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'fr_fr': _('French'),
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'ga': _('Irish-gaeilge'),
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'grc': _('Greek-ancient'),
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'hi': _('Hindi'),
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'hr': _('Croatian'),
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'hu': _('Hungarian'),
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'hy': _('Armenian'),
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'hy_west': _('Armenian (west)'),
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'id': _('Indonesian'),
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'is': _('Icelandic'),
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'it': _('Italian'),
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'jbo': _('Lojban'),
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'ka': _('Georgian'),
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'kn': _('Kannada'),
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'ku': _('Kurdish'),
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'la': _('Latin'),
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'lt': _('Lithuanian'),
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'lv': _('Latvian'),
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'mk': _('Macedonian'),
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'ml': _('Malayalam'),
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'ms': _('Malay'),
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'ne': _('Nepali'),
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'nl': _('Dutch'),
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'no': _('Norwegian'),
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'pa': _('Punjabi'),
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'pl': _('Polish'),
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'pt_br': _('Portuguese (Brazil)'),
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'pt_pt': _('Portuguese (Portugal)'),
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'ro': _('Romanian'),
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'ru': _('Russian'),
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'sk': _('Slovak'),
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'sq': _('Albanian'),
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'sr': _('Serbian'),
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'sv': _('Swedish'),
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'sw': _('Swahili-test'),
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'ta': _('Tamil'),
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'tr': _('Turkish'),
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'vi': _('Vietnam'),
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'vi_hue': _('Vietnam_hue'),
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'vi_sgn': _('Vietnam_sgn'),
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'zh': _('Mandarin'),
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'zh_yue': _('Cantonese')
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}
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class SpeechManager(GObject.GObject):
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__gtype_name__ = 'SpeechManager'
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__gsignals__ = {
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'play': (GObject.SignalFlags.RUN_FIRST, None, []),
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'pause': (GObject.SignalFlags.RUN_FIRST, None, []),
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'stop': (GObject.SignalFlags.RUN_FIRST, None, [])
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}
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MIN_PITCH = -100
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MAX_PITCH = 100
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MIN_RATE = -100
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MAX_RATE = 100
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def __init__(self, **kwargs):
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GObject.GObject.__init__(self, **kwargs)
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self._player = _GstSpeechPlayer()
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self._player.connect('play', self._update_state, 'play')
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self._player.connect('stop', self._update_state, 'stop')
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self._player.connect('pause', self._update_state, 'pause')
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self._voice_name = self._player.get_default_voice()
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self._pitch = DEFAULT_PITCH
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self._rate = DEFAULT_RATE
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self._is_playing = False
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self._is_paused = False
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self._save_timeout_id = -1
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self.restore()
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def _update_state(self, player, signal):
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self._is_playing = (signal == 'play')
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self._is_paused = (signal == 'pause')
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self.emit(signal)
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def get_is_playing(self):
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return self._is_playing
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is_playing = GObject.property(type=bool, getter=get_is_playing,
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setter=None, default=False)
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def get_is_paused(self):
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return self._is_paused
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is_paused = GObject.property(type=bool, getter=get_is_paused,
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setter=None, default=False)
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def get_pitch(self):
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return self._pitch
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def get_rate(self):
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return self._rate
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def set_pitch(self, pitch):
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self._pitch = pitch
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if self._save_timeout_id != -1:
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GObject.source_remove(self._save_timeout_id)
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self._save_timeout_id = GObject.timeout_add(_SAVE_TIMEOUT, self.save)
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def set_rate(self, rate):
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self._rate = rate
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if self._save_timeout_id != -1:
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GObject.source_remove(self._save_timeout_id)
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self._save_timeout_id = GObject.timeout_add(_SAVE_TIMEOUT, self.save)
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def say_text(self, text):
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if text:
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self._player.speak(self._pitch, self._rate, self._voice_name, text)
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def say_selected_text(self):
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clipboard = Gtk.Clipboard.get(Gdk.SELECTION_PRIMARY)
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clipboard.request_text(self.__primary_selection_cb, None)
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def pause(self):
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self._player.pause_sound_device()
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def restart(self):
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self._player.restart_sound_device()
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def stop(self):
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self._player.stop_sound_device()
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def __primary_selection_cb(self, clipboard, text, user_data):
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self.say_text(text)
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def save(self):
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self._save_timeout_id = -1
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# DEPRECATED
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from gi.repository import GConf
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client = GConf.Client.get_default()
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client.set_int('/desktop/sugar/speech/pitch', self._pitch)
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client.set_int('/desktop/sugar/speech/rate', self._rate)
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settings = Gio.Settings('org.sugarlabs.speech')
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settings.set_int('pitch', self._pitch)
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settings.set_int('rate', self._rate)
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logging.debug('saving speech configuration pitch %s rate %s',
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self._pitch, self._rate)
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return False
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def restore(self):
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settings = Gio.Settings('org.sugarlabs.speech')
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self._pitch = settings.get_int('pitch')
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self._rate = settings.get_int('rate')
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logging.debug('loading speech configuration pitch %s rate %s',
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self._pitch, self._rate)
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class _GstSpeechPlayer(GObject.GObject):
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__gsignals__ = {
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'play': (GObject.SignalFlags.RUN_FIRST, None, []),
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'pause': (GObject.SignalFlags.RUN_FIRST, None, []),
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'stop': (GObject.SignalFlags.RUN_FIRST, None, [])
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}
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def __init__(self):
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GObject.GObject.__init__(self)
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self._pipeline = None
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self._all_voices = None
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def restart_sound_device(self):
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if self._pipeline is None:
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logging.debug('Trying to restart not initialized sound device')
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return
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power.get_power_manager().inhibit_suspend()
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self._pipeline.set_state(Gst.State.PLAYING)
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self.emit('play')
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def pause_sound_device(self):
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if self._pipeline is None:
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return
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self._pipeline.set_state(Gst.State.PAUSED)
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power.get_power_manager().restore_suspend()
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self.emit('pause')
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def stop_sound_device(self):
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if self._pipeline is None:
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return
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self._pipeline.set_state(Gst.State.NULL)
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power.get_power_manager().restore_suspend()
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self.emit('stop')
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def make_pipeline(self, command):
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if self._pipeline is not None:
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self.stop_sound_device()
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del self._pipeline
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self._pipeline = Gst.parse_launch(command)
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bus = self._pipeline.get_bus()
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bus.add_signal_watch()
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bus.connect('message', self.__pipe_message_cb)
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def __pipe_message_cb(self, bus, message):
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if message.type in (Gst.MessageType.EOS, Gst.MessageType.ERROR):
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self._pipeline.set_state(Gst.State.NULL)
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self._pipeline = None
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power.get_power_manager().restore_suspend()
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self.emit('stop')
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def speak(self, pitch, rate, voice_name, text):
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# TODO workaround for http://bugs.sugarlabs.org/ticket/1801
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if not [i for i in text if i.isalnum()]:
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return
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self.make_pipeline('espeak name=espeak ! autoaudiosink')
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src = self._pipeline.get_by_name('espeak')
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src.props.text = text
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src.props.pitch = pitch
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src.props.rate = rate
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src.props.voice = voice_name
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src.props.track = 2 # track for marks
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self.restart_sound_device()
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def get_all_voices(self):
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if self._all_voices is not None:
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return self._all_voices
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self._all_voices = {}
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for voice in Gst.ElementFactory.make('espeak', None).props.voices:
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name, language, dialect = voice
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if dialect != 'none':
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self._all_voices[language + '_' + dialect] = name
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else:
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self._all_voices[language] = name
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return self._all_voices
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def get_default_voice(self):
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"""Try to figure out the default voice, from the current locale ($LANG)
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Fall back to espeak's voice called Default."""
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voices = self.get_all_voices()
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locale = os.environ.get('LANG', '')
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language_location = locale.split('.', 1)[0].lower()
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language = language_location.split('_')[0]
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# if the language is es but not es_es default to es_la (latin voice)
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if language == 'es' and language_location != 'es_es':
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language_location = 'es_la'
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best = voices.get(language_location) or voices.get(language) \
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or 'default'
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logging.debug('Best voice for LANG %s seems to be %s',
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locale, best)
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return best
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