aiexperiments-ai-duet/server/server.py
2018-10-23 17:41:04 +09:00

54 lines
1.6 KiB
Python

#
# Copyright 2016 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from predict import generate_midi
import os
from flask import send_file, request
import pretty_midi
import sys
if sys.version_info.major <= 2:
from cStringIO import StringIO
else:
from io import BytesIO
import time
import json
from flask import Flask
app = Flask(__name__, static_url_path='', static_folder=os.path.abspath('../static'))
@app.route('/predict', methods=['POST'])
def predict():
now = time.time()
values = json.loads(request.data)
if sys.version_info.major <= 2:
midi_data = pretty_midi.PrettyMIDI(StringIO(''.join(chr(v) for v in values)))
else:
midi_data = pretty_midi.PrettyMIDI(BytesIO(b''.join([v.to_bytes(1,'big') for v in values])))
duration = float(request.args.get('duration'))
ret_midi = generate_midi(midi_data, duration)
return send_file(ret_midi, attachment_filename='return.mid',
mimetype='audio/midi', as_attachment=True)
@app.route('/', methods=['GET', 'POST'])
def index():
return send_file('../static/index.html')
if __name__ == '__main__':
app.run(host='127.0.0.1', port=8080)