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demo_server.py
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demo_server.py
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import argparse
import falcon
from hparams import hparams, hparams_debug_string
import os
from synthesizer import Synthesizer
html_body = '''<html><title>Demo</title>
<style>
body {padding: 16px; font-family: sans-serif; font-size: 14px; color: #444}
input {font-size: 14px; padding: 8px 12px; outline: none; border: 1px solid #ddd}
input:focus {box-shadow: 0 1px 2px rgba(0,0,0,.15)}
p {padding: 12px}
button {background: #28d; padding: 9px 14px; margin-left: 8px; border: none; outline: none;
color: #fff; font-size: 14px; border-radius: 4px; cursor: pointer;}
button:hover {box-shadow: 0 1px 2px rgba(0,0,0,.15); opacity: 0.9;}
button:active {background: #29f;}
button[disabled] {opacity: 0.4; cursor: default}
</style>
<body>
<form>
<input id="text" type="text" size="40" placeholder="Enter Text">
<button id="button" name="synthesize">Speak</button>
</form>
<p id="message"></p>
<audio id="audio" controls autoplay hidden></audio>
<script>
function q(selector) {return document.querySelector(selector)}
q('#text').focus()
q('#button').addEventListener('click', function(e) {
text = q('#text').value.trim()
if (text) {
q('#message').textContent = 'Synthesizing...'
q('#button').disabled = true
q('#audio').hidden = true
synthesize(text)
}
e.preventDefault()
return false
})
function synthesize(text) {
fetch('/synthesize?text=' + encodeURIComponent(text), {cache: 'no-cache'})
.then(function(res) {
if (!res.ok) throw Error(res.statusText)
return res.blob()
}).then(function(blob) {
q('#message').textContent = ''
q('#button').disabled = false
q('#audio').src = URL.createObjectURL(blob)
q('#audio').hidden = false
}).catch(function(err) {
q('#message').textContent = 'Error: ' + err.message
q('#button').disabled = false
})
}
</script></body></html>
'''
class UIResource:
def on_get(self, req, res):
res.content_type = 'text/html'
res.body = html_body
class SynthesisResource:
def on_get(self, req, res):
if not req.params.get('text'):
raise falcon.HTTPBadRequest()
res.data = synthesizer.synthesize(req.params.get('text'))
res.content_type = 'audio/wav'
synthesizer = Synthesizer()
api = falcon.API()
api.add_route('/synthesize', SynthesisResource())
api.add_route('/', UIResource())
if __name__ == '__main__':
from wsgiref import simple_server
parser = argparse.ArgumentParser()
parser.add_argument('--checkpoint', required=True, help='Full path to model checkpoint')
parser.add_argument('--port', type=int, default=9000)
parser.add_argument('--hparams', default='',
help='Hyperparameter overrides as a comma-separated list of name=value pairs')
args = parser.parse_args()
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
hparams.parse(args.hparams)
print(hparams_debug_string())
synthesizer.load(args.checkpoint)
print('Serving on port %d' % args.port)
simple_server.make_server('0.0.0.0', args.port, api).serve_forever()
else:
synthesizer.load(os.environ['CHECKPOINT'])