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# Copyright (C) 2009 Aleksey S. Lim
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gst
import logging
import speech
_logger = logging.getLogger('read-etexts-activity')
def get_all_voices():
all_voices = {}
for voice in gst.element_factory_make('espeak').props.voices:
name, language, dialect = voice
if dialect != 'none':
all_voices[language + '_' + dialect] = name
else:
all_voices[language] = name
return all_voices
def _message_cb(bus, message, pipe):
if message.type == gst.MESSAGE_EOS:
pipe.set_state(gst.STATE_NULL)
if speech.end_text_cb != None:
speech.end_text_cb()
if message.type == gst.MESSAGE_ERROR:
pipe.set_state(gst.STATE_NULL)
if pipe is play_speaker[1]:
speech.reset_cb()
elif message.type == gst.MESSAGE_ELEMENT and \
message.structure.get_name() == 'espeak-mark':
mark = message.structure['mark']
speech.highlight_cb(int(mark))
def _create_pipe():
pipe = gst.Pipeline('pipeline')
source = gst.element_factory_make('espeak', 'source')
pipe.add(source)
sink = gst.element_factory_make('autoaudiosink', 'sink')
pipe.add(sink)
source.link(sink)
bus = pipe.get_bus()
bus.add_signal_watch()
bus.connect('message', _message_cb, pipe)
return (source, pipe)
def _speech(speaker, words):
speaker[0].props.pitch = speech.pitch
speaker[0].props.rate = speech.rate
speaker[0].props.voice = speech.voice[1]
speaker[0].props.text = words
speaker[1].set_state(gst.STATE_NULL)
speaker[1].set_state(gst.STATE_PLAYING)
info_speaker = _create_pipe()
play_speaker = _create_pipe()
play_speaker[0].props.track = 2
def voices():
return info_speaker[0].props.voices
def say(words):
_speech(info_speaker, words)
def play(words):
_speech(play_speaker, words)
def pause():
play_speaker[1].set_state(gst.STATE_PAUSED)
def continue_play():
play_speaker[1].set_state(gst.STATE_PLAYING)
def is_stopped():
for i in play_speaker[1].get_state():
if isinstance(i, gst.State) and i == gst.STATE_NULL:
return True
return False
def stop():
play_speaker[1].set_state(gst.STATE_NULL)
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