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| from __future__ import print_function | |
| import os | |
| import subprocess | |
| import sys | |
| import threading | |
| import time | |
| import requests | |
| from flask import Flask, request, redirect, url_for, flash | |
| from flask_session import Session | |
| from google.cloud import speech | |
| from google.cloud import storage | |
| from google.cloud.speech import enums | |
| from google.cloud.speech import types | |
| from summa import summarizer | |
| from werkzeug.utils import secure_filename | |
| FFMPEG = os.path.join(os.path.dirname(__file__), "ffmpeg.exe") | |
| app = Flask(__name__) | |
| UPLOAD_FOLDER = '.' | |
| ALLOWED_EXTENSIONS = set(['avi', 'mp4', 'mkv']) | |
| SESSION_TYPE = 'filesystem' | |
| app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER | |
| app.secret_key = os.urandom(8) | |
| sess = Session(app) | |
| sess.init_app(app) | |
| def allowed_file(filename): | |
| return '.' in filename and \ | |
| filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS | |
| @app.route('/', methods=['GET', 'POST']) | |
| def upload_file(): | |
| if request.method == 'POST': | |
| # check if the post request has the file part | |
| if 'file' not in request.files: | |
| flash('No file part') | |
| return redirect(request.url) | |
| file = request.files['file'] | |
| if file.filename == '': | |
| return redirect(request.url) | |
| if file and allowed_file(file.filename): | |
| filename = secure_filename(file.filename) | |
| file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename)) | |
| process_file(filename) | |
| return redirect(url_for('upload_file', | |
| filename=filename)) | |
| return ''' | |
| <!doctype html> | |
| <title>Upload new File</title> | |
| <h1>Upload new File</h1> | |
| <form method=post enctype=multipart/form-data> | |
| <p><input type=file name=file> | |
| <input type=submit value=Upload> | |
| </form> | |
| ''' | |
| def process_file(filename): | |
| print("Processing file {0}".format(filename), file=sys.stderr) | |
| now = time.time().hex() | |
| local_filename = "audio-{0}.flac".format(now) | |
| command = [FFMPEG, "-i", filename, "-ab", "160k", "-acodec", "flac", "-ac", "1", "-ar", "16000", "-vn", | |
| local_filename] | |
| subprocess.call(" ".join(command), shell=True) | |
| storage_client = storage.Client(project=os.getenv("PROJECT_ID")) | |
| bucket = storage_client.get_bucket(os.getenv("BUCKET_NAME")) | |
| blobber = bucket.blob(local_filename) | |
| blobber.upload_from_filename(local_filename) | |
| os.remove(local_filename) | |
| transcript_thread = threading.Thread(target=get_transcript, args=[local_filename]) | |
| transcript_thread.start() | |
| return | |
| def get_transcript(uri): | |
| """Asynchronously transcribes the audio file specified by the gcs_uri.""" | |
| client = speech.SpeechClient() | |
| audio = types.RecognitionAudio(uri='gs://{0}/{1}'.format(os.getenv("BUCKET_NAME"), uri)) | |
| config = types.RecognitionConfig( | |
| encoding=enums.RecognitionConfig.AudioEncoding.FLAC, | |
| sample_rate_hertz=16000, | |
| language_code='en-US') | |
| operation = client.long_running_recognize(config, audio) | |
| retry_count = 100 | |
| while retry_count > 0 and not operation.done(): | |
| print("Waiting for {0} retries".format(retry_count), file=sys.stderr) | |
| retry_count -= 1 | |
| time.sleep(10) | |
| if not operation.done(): | |
| print('Operation not complete and retry limit reached.') | |
| return | |
| res = operation.result().results | |
| transcribed = ". ".join(extract_transcript(x) for x in res) | |
| try: | |
| print(summarizer.summarize(transcribed), file=sys.stderr) | |
| except ZeroDivisionError: | |
| return | |
| def extract_transcript(x): | |
| # run it through the grammar twice in case there are multiple choices. | |
| return ask_lt(x.alternatives[0].transcript) | |
| def ask_lt(s): | |
| s = s.strip() # Believe this removes all whitespace from left and right | |
| # Need to trim both left and right for elipses | |
| while s[:3] == '...': | |
| s = s[3:] | |
| while s[-3:] == '...': | |
| s = s[:-3] | |
| params = {"text": s, "language": "en-US"} | |
| resp = requests.get("http://127.0.0.1:8081/v2/check", params=params).json() | |
| try: | |
| # basically, if this is empty, it will throw an exception we can catch, and then break the loop. | |
| mistake = resp["matches"][0] | |
| _ = mistake["message"] # throws KeyError if no match | |
| except (KeyError, IndexError): | |
| return s | |
| else: | |
| local_context = mistake["context"] | |
| original_string = s | |
| print(local_context, file=sys.stderr) | |
| fixed_string = ''.join([ | |
| original_string[:local_context["offset"]], | |
| mistake["replacements"][0]["value"], | |
| original_string[local_context["length"] + local_context["offset"]:], | |
| ]) | |
| return ask_lt(fixed_string) | |
| if __name__ == '__main__': | |
| app.run(debug=True) | |
| # app.run(debug=False, port=int(os.getenv("PORT")), host="0.0.0.0") |
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