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speake3.py
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#! /usr/bin/env python3
from __future__ import print_function, with_statement
import os
import shlex
import subprocess
from queue import Queue
from multiprocessing.pool import ThreadPool
class GetOutput:
# Class that executes espeak commands and returns output and/or err
def __init__(self, cmd):
self.__cmd = cmd
args = shlex.split(self.__cmd)
pipe = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
self.output = pipe.stdout.read().decode('utf-8')
self.error = pipe.stderr.read().decode('utf-8')
if self.output[-1:] == '\n':
self.output = self.output[:-1]
class Speake:
# Class that instantiates espeak-tts-engine objects.
def __init__(self):
self.espeak = 'espeak'
self.a = ' -a '
self.g = ' -g '
self.p = ' -p '
self.s = ' -s '
self.f = ' -f '
self.stdin = ' --stdin '
self.k = ' -k '
self.b = ' -b '
self.l = ' -l '
self.m = ' -m '
self.q = ' -q '
self.punct = ' --punct='
self.split = ' --split='
self.x = ' -x '
self.v = ' -v '
self.w = ' -w '
self.z = ' -z '
self.stdout = ' --stdout '
self.version = ' --version '
self.voices = ' --voices='
self.command = ''
self.commands = ''
self.words = ''
self.no = 0
self.options = ()
self.qu = Queue()
self.output = object()
self.status = object()
self.status_output = ''
self.status_error = ''
# Condition to check if espeak-tts-engine is installed
espeak_exists = subprocess.run(['which', 'espeak'], stdout=subprocess.PIPE).stdout.decode('utf-8') != ''
if not espeak_exists:
raise OSError("Espeak text-to-speech engine is not installed in this system!")
def __listoutput(self, voices):
# Private function that converts output of get("voices") to a list of dictionaries
keys = shlex.split(voices.splitlines()[0])
voices_list = []
for voice in voices.splitlines()[1:len(voices)]:
voice_list = shlex.split(voice)
voices_list.append(
{keys[1]: voice_list[1], keys[2]: voice_list[2], keys[3]: voice_list[3],
keys[4]: voice_list[4]})
return voices_list
def set(self, option="", value=""):
# Function that sets options or option+value pairs of the Speake instance
self.options = (
"textfile", "stdin", "amplitude", "wordgap", "capitals", "line-length", "pitch", "speed", "voice",
"wavfile",
"stdout", "version", "voices", "text-encoding", "markup", "quiet", "punct", "split", "write-pm", "nopause")
if option in self.options:
if self.options[0] == option:
self.unset(option)
self.f = self.f + "'" + value + "'"
self.commands += self.f
elif self.options[1] == option:
self.unset(option)
self.stdin += value
self.commands += self.stdin
elif self.options[2] == option:
self.unset(option)
self.a += value
self.commands += self.a
elif self.options[3] == option:
self.unset(option)
self.g += value
self.commands += self.g
elif self.options[4] == option:
self.unset(option)
self.k += value
self.commands += self.k
elif self.options[5] == option:
self.unset(option)
self.l += value
self.commands += self.l
elif self.options[6] == option:
self.unset(option)
self.p += value
self.commands += self.p
elif self.options[7] == option:
self.unset(option)
self.s += value
self.commands += self.s
elif self.options[8] == option:
self.unset(option)
self.v += value
self.commands += self.v
elif self.options[9] == option:
self.unset(option)
self.w = self.w + "'" + value + "'"
self.commands += self.w
elif self.options[10] == option:
self.unset(option)
self.stdout += value
self.commands += self.stdout
elif self.options[13] == option:
self.unset(option)
self.b += value
self.commands += self.b
elif self.options[14] == option:
self.unset(option)
self.m += value
self.commands += self.m
elif self.options[15] == option:
self.unset(option)
self.q += value
self.commands += self.q
elif self.options[16] == option:
self.unset(option)
self.punct += value
self.commands += self.punct
elif self.options[17] == option:
self.unset(option)
self.split += value
self.commands += self.split
elif self.options[18] == option:
self.unset(option)
self.x += value
self.commands += self.x
elif self.options[19] == option:
self.unset(option)
self.z += value
self.commands += self.z
else:
return None
else:
return None
def unset(self, option):
# Function that unsets options of Speake instance
if option in self.options:
if self.options[0] == option:
self.commands = self.commands.replace(self.f, "")
self.f = self.f.replace(self.f, ' -f ')
elif self.options[1] == option:
self.commands = self.commands.replace(self.stdin, "")
self.stdin = self.stdin.replace(self.stdin, ' --stdin ')
elif self.options[2] == option:
self.commands = self.commands.replace(self.a, "")
self.a = self.a.replace(self.a, ' -a ')
elif self.options[3] == option:
self.commands = self.commands.replace(self.g, "")
self.g = self.g.replace(self.g, ' -g ')
elif self.options[4] == option:
self.commands = self.commands.replace(self.k, "")
self.k = self.k.replace(self.k, ' -k ')
elif self.options[5] == option:
self.commands = self.commands.replace(self.l, "")
self.l = self.l.replace(self.l, ' -l ')
elif self.options[6] == option:
self.commands = self.commands.replace(self.p, "")
self.p = self.p.replace(self.p, ' -p ')
elif self.options[7] == option:
self.commands = self.commands.replace(self.s, "")
self.s = self.s.replace(self.s, ' -s ')
elif self.options[8] == option:
self.commands = self.commands.replace(self.v, "")
self.v = self.v.replace(self.v, ' -v ')
elif self.options[9] == option:
self.commands = self.commands.replace(self.w, "")
self.w = self.w.replace(self.w, ' -w')
elif self.options[10] == option:
self.commands = self.commands.replace(self.stdout, "")
self.stdout = self.stdout.replace(self.stdout, ' --stdout ')
elif self.options[13] == option:
self.commands = self.commands.replace(self.b, "")
self.b = self.b.replace(self.b, ' -b ')
elif self.options[14] == option:
self.commands = self.commands.replace(self.m, "")
self.m = self.m.replace(self.m, ' -m ')
elif self.options[15] == option:
self.commands = self.commands.replace(self.q, "")
self.q = self.q.replace(self.q, ' -q ')
elif self.options[16] == option:
self.commands = self.commands.replace(self.punct, "")
self.punct = self.punct.replace(self.punct, ' --punct=')
elif self.options[17] == option:
self.commands = self.commands.replace(self.split, "")
self.split = self.split.replace(self.split, ' --split=')
elif self.options[18] == option:
self.commands = self.commands.replace(self.x, "")
self.x = self.x.replace(self.x, ' -x ')
elif self.options[19] == option:
self.commands = self.commands.replace(self.z, "")
self.z = self.z.replace(self.z, ' -z ')
else:
return None
def get(self, option, value=""):
# Function that gets read only properties of the Speake instance
if option in ("version", "voices"):
if option is "version":
self.output = GetOutput(self.espeak + self.version)
return self.__listoutput(self.output.output)
elif option is "voices":
self.output = GetOutput(self.espeak + self.voices + value)
return self.__listoutput(self.output.output)
else:
return None
def say(self, words=""):
# Function where words to be said are passed to Speake object and added to the command Queue
self.words = words
self.command = self.espeak + self.commands + ' "' + self.words + '"'
self.qu.put(self.command)
self.no += 1
def talkback(self):
# Function that creates threads depending on the number of calls to say().Each thread makes a call to Getoutput
# class where actual execution occurs
if self.words == "":
self.say()
pool = ThreadPool(1)
for n in range(self.no):
if self.qu.empty():
break
else:
self.status = pool.apply(GetOutput, (self.qu.get(),))
self.status_output += self.status.output
self.status_error += self.status.error
else:
pool = ThreadPool(1)
for n in range(self.no):
if self.qu.empty():
break
else:
self.status = pool.apply(GetOutput, (self.qu.get(),))
self.status_output += self.status.output
self.status_error += self.status.error