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annotate service/speechMusic/speechMusic.py @ 454:ccde9f432e4e

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WIP speechmusic to load from http, but pulseaudio out is broken Ignore-this: 28a41741b1f33114348f5ec6e7b4bef9
author drewp@bigasterisk.com
date Fri, 19 Apr 2019 13:51:54 -0700
parents 9fd92202c886
children 7e09c0d0a86e
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1 #!bin/python
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2 """
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3 play sounds according to POST requests.
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4 """
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5 from __future__ import division
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6 import sys, tempfile
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7 from pyjade.ext.mako import preprocessor as mako_preprocessor
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8 from mako.lookup import TemplateLookup
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9 from twisted.internet import reactor
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10 from cyclone.httpclient import fetch
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11 from generator import tts
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12 import xml.etree.ElementTree as ET
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13 from klein import Klein
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14 from twisted.web.static import File
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15 from logsetup import log
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16 import pygame.mixer
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17 class URIRef(str): pass
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18
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19 templates = TemplateLookup(directories=['.'],
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20 preprocessor=mako_preprocessor,
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21 filesystem_checks=True)
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22
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23 def makeSpeech(speech, fast=False):
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24 speechWav = tempfile.NamedTemporaryFile(suffix='.wav')
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25
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26 root = ET.Element("SABLE")
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27 r = ET.SubElement(root, "RATE",
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28 attrib=dict(SPEED="+50%" if fast else "+0%"))
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29 for sentence in speech.split('.'):
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30 div = ET.SubElement(r, "DIV")
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31 div.set("TYPE", "sentence")
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32 div.text = sentence
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33
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34 speechSecs = tts(speech, speechWav.name)
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35 return pygame.mixer.Sound(speechWav.name), speechSecs
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37 class LOADING(object): pass
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38
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39 class SoundEffects(object):
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40 def __init__(self):
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41 self.buffers = {} # URIRef : pygame.mixer.Sound
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42 self.playingSources = []
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43 self.queued = []
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44 self.volume = 1 # level for the next sound that's played (or existing instances of the same sound)
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45
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46 def _getSound(self, uri):
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47 def done(resp):
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48 print('got', len(resp.body))
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49
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50 return fetch(uri).addCallback(done)
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51
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52 def playEffect(self, uri):
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53 if uri not in self.buffers:
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54 self.buffers[uri] = LOADING
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55 self._getSound(uri).addCallback(self.playEffect, uri)
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56 if self.buffers[uri] is LOADING:
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57 # The first playback loads then plays, but any attempts
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58 # during that load are dropped, not queued.
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59 return
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60 snd = self.buffers[uri]
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61 snd.set_volume(self.volume)
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62 return self.playBuffer(snd)
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63
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64 def playSpeech(self, txt, preEffect=None, postEffect=None, preEffectOverlap=0):
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65 buf, secs = makeSpeech(txt)
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66 t = 0
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67 if preEffect:
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68 t += self.playEffect(preEffect)
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69 t -= preEffectOverlap
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71 reactor.callLater(t, self.playBuffer, buf)
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72 t += secs
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73
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74 if postEffect:
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75 self.playBufferLater(t, self.buffers[postEffect])
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77 def playBufferLater(self, t, buf):
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78 self.queued.append(reactor.callLater(t, self.playBuffer, buf))
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79
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80 def playBuffer(self, buf):
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81 buf.play()
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82
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83 secs = buf.get_length()
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84 self.playingSources.append(buf)
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85 reactor.callLater(secs + .1, self.done, buf)
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86 return secs
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87
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88 def done(self, src):
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89 try:
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90 self.playingSources.remove(src)
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91 except ValueError:
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92 pass
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93
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94 def stopAll(self):
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95 while self.playingSources:
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96 self.playingSources.pop().stop()
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97 for q in self.queued:
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98 q.cancel()
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99 # doesn't cover the callLater ones
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100
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101 class Server(object):
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102 app = Klein()
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103 def __init__(self, sfx):
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104 self.sfx = sfx
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105
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106 @app.route('/static/', branch=True)
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107 def static(self, request):
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108 return File("./static")
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109
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110 @app.route('/', methods=['GET'])
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111 def index(self, request):
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112 t = templates.get_template("index.jade")
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113 return t.render(effectNames=[
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114 dict(name=k, postUri='effects/%s' % k)
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115 for k in self.sfx.buffers.keys()])
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116
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117 @app.route('/speak', methods=['POST'])
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118 def speak(self, request):
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119 self.sfx.playSpeech(request.args['msg'][0])
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120 return "ok"
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121
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122 @app.route('/playSound', methods=['POST'])
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123 def effect(self, request):
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124 uri = request.args['uri'][0]
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125 self.sfx.playEffect(uri)
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126 return "ok"
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127
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128 @app.route('/volume', methods=['PUT'])
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129 def volume(self, request, name):
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130 self.sfx.setVolume(float(request.args['v'][0]))
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131 return "ok"
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132
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133 @app.route('/stopAll', methods=['POST'])
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134 def stopAll(self, request):
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135 self.sfx.stopAll()
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136 return "ok"
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137
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138 pygame.mixer.init()
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139 sfx = SoundEffects()
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140
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141 server = Server(sfx)
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142 server.app.run(endpoint_description=r"tcp6:port=9049:interface=\:\:")