1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
# Copyright (C) 2009, Aleksey 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 gi
gi.require_version('Gst', '1.0')
from gi.repository import Gst
from gi.repository import GObject
import subprocess
import logging
import re
logger = logging.getLogger('speak')
PITCH_MAX = 200
RATE_MAX = 200
GObject.threads_init()
Gst.init(None)
class BaseAudioGrab(GObject.GObject):
__gsignals__ = {
'new-buffer': (GObject.SIGNAL_RUN_FIRST,
None, [GObject.TYPE_PYOBJECT])}
def __init__(self):
GObject.GObject.__init__(self)
self.pipeline = None
self.handle1 = None
self.handle2 = None
def speak(self, status, text):
# 175 is default value, min is 80
rate = 60 + int(((175 - 80) * 2) * status.rate / RATE_MAX)
wavpath = "/tmp/speak.wav"
subprocess.call(["espeak", "-w", wavpath, "-p", str(status.pitch),
"-s", str(rate), "-v", status.voice.name, text],
stdout=subprocess.PIPE)
self.stop_sound_device()
self.make_pipeline(wavpath)
# play
self.restart_sound_device()
def restart_sound_device(self):
self.pipeline.set_state(Gst.State.NULL)
self.pipeline.set_state(Gst.State.PLAYING)
def stop_sound_device(self):
if self.pipeline is None:
return
self.pipeline.set_state(Gst.State.NULL)
self._new_buffer('')
def make_pipeline(self, wavpath):
if self.pipeline is not None:
self.stop_sound_device()
del self.pipeline
self.pipeline = Gst.Pipeline()
self.player = Gst.ElementFactory.make("playbin", "espeak")
self.pipeline.add(self.player)
self.player.set_property("uri", Gst.filename_to_uri(wavpath))
self.pipeline.set_state(Gst.State.PLAYING)
def on_buffer(element, buffer, pad):
if self.andle1:
GObject.source_remove(self.self.andle1)
self.andle1 = GObject.timeout_add(100,
self._new_buffer, str(buffer))
return True
sink = self.pipeline.get_by_name('sink')
def gstmessage_cb(bus, message):
self._was_message = True
if message.type == Gst.MessageType.WARNING:
def check_after_warnings():
if not self._was_message:
self.stop_sound_device()
return True
logger.debug(message.type)
self._was_message = False
if self.andle2:
GObject.source_remove(self.self.andle2)
self.andle2 = GObject.timeout_add(500,
self._new_buffer, str(buffer))
elif message.type in (Gst.MessageType.EOS, Gst.MessageType.ERROR):
logger.debug(message.type)
self.stop_sound_device()
self._was_message = False
bus = self.pipeline.get_bus()
bus.add_signal_watch()
bus.connect('message', gstmessage_cb)
def _new_buffer(self, buf):
self.emit("new-buffer", buf)
return False
def voices():
out = []
result = subprocess.Popen(["espeak", "--voices"],
stdout=subprocess.PIPE).communicate()[0]
for line in result.split('\n'):
m = re.match(r'\s*\d+\s+([\w-]+)\s+([MF])\s+([\w_-]+)\s+(.+)', line)
if not m:
continue
language, gender, name, stuff = m.groups()
if stuff.startswith('mb/'): # or \
#name in ('en-rhotic','english_rp','english_wmids'):
# these voices don't produce sound
continue
out.append((language, name))
return out
|