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app.py
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import os
from flask import Flask, render_template, request, jsonify, redirect
import speech_recognition as sr
from googletrans import Translator
from gtts import gTTS
import speech_recognition as sr
import json
from moviepy.editor import *
app = Flask(__name__)
@app.route('/')
def index():
return render_template('index.html')
languages = {"afrikaans": "af", "albanian": "sq", "amharic": "am", "arabic": "ar", "armenian": "hy", "azerbaijani": "az",
"basque": "eu", "belarusian": "be", "bengali": "bn", "bosnian": "bs", "bulgarian": "bg",
"catalan": "ca", "cebuano": "ceb", "chichewa": "ny", "chinese (simplified)": "zh-cn", "chinese (traditional)": "zh-tw",
"corsican": "co", "croatian": "hr", "czech": "cs", "danish": "da", "dutch": "nl",
"english": "en", "esperanto": "eo", "estonian": "et", "filipino": "tl", "finnish": "fi",
"french": "fr", "frisian": "fy", "galician": "gl", "georgian": "ka", "german": "de",
"greek": "el", "gujarati": "gu", "haitian creole": "ht", "hausa": "ha", "hawaiian": "haw",
"hebrew": "he", "hindi": "hi", "hmong": "hmn", "hungarian": "hu", "icelandic": "is",
"igbo": "ig", "indonesian": "id", "irish": "ga", "italian": "it", "japanese": "ja",
"javanese": "jw", "kannada": "kn", "kazakh": "kk", "khmer": "km", "korean": "ko",
"kurdish (kurmanji)": "ku", "kyrgyz": "ky", "lao": "lo", "latin": "la", "latvian": "lv",
"lithuanian": "lt", "luxembourgish": "lb", "macedonian": "mk", "malagasy": "mg", "malay": "ms",
"malayalam": "ml", "maltese": "mt", "maori": "mi", "marathi": "mr", "mongolian": "mn",
"myanmar (burmese)": "my", "nepali": "ne", "norwegian": "no", "odia": "or", "pashto": "ps",
"persian": "fa", "polish": "pl", "portuguese": "pt", "punjabi": "pa", "romanian": "ro",
"russian": "ru", "samoan": "sm", "scots gaelic": "gd", "serbian": "sr", "sesotho": "st",
"shona": "sn", "sindhi": "sd", "sinhala": "si", "slovak": "sk", "slovenian": "sl",
"somali": "so", "spanish": "es", "sundanese": "su", "swahili": "sw", "swedish": "sv",
"tajik": "tg", "tamil": "ta", "telugu": "te", "thai": "th", "turkish": "tr",
"ukrainian": "uk", "urdu": "ur", "uyghur": "ug", "uzbek": "uz", "vietnamese": "vi",
"welsh": "cy", "xhosa": "xh", "yiddish": "yi", "yoruba": "yo", "zulu": "zu"}
@app.route('/text_translate', methods=['GET', 'POST'])
def translate_text():
""" Translate text from source language to target language
Keyword arguments:
Return: translated text in .json format which is later fetched by connector.js
"""
print("inside translate_text")
text = ""
target = ""
print("request.form: ", request.form)
text = request.form.get('user_text')
target = request.form.get('target_language')
print(text, target)
unicodeData = text_translator(text, target)
data = {'text': unicodeData}
encodedUnicode = json.dumps(data, ensure_ascii=False)
return (encodedUnicode)
# return render_template('index.html', result=encodedUnicode)
@app.route('/audio_translate', methods=['GET', 'POST'])
def audio_transcript():
""" Return translated audio from source language to target language
and generate audio file as well as text file
Returns:
dict: dictionary containing translated text in json format.
This is later fetched by connector.js
"""
print("inside audio_transcript")
print("request.form: ", request.form)
target = request.form.get('target_language')
if "file" not in request.files:
print("No file 1")
return redirect(request.url)
file = request.files["file"]
if file.filename == "":
print("No file")
return redirect(request.url)
target = languages[target].lower()
print(file, target)
transcript = ""
# os.save(filename= 'static\\translated_audio\\original.mp3',
# ignore_discard=False, ignore_expires=False)
if file:
print("transciption")
recognizer = sr.Recognizer()
audioFile = sr.AudioFile(file)
with audioFile as source:
data = recognizer.record(source)
transcript = recognizer.recognize_google(data, key=None)
print(transcript)
ans = text_translator(transcript, target)
audio_translator(ans, target)
print('printing ans')
data = {'text': ans}
encodedUnicode = json.dumps(data, ensure_ascii=False)
return (encodedUnicode)
# return render_template('audio_translate.html', ans=ans)
@app.route('/video_translate', methods=['GET', 'POST'])
def translate_video():
print("inside video_transcript")
print("request.form: ", request.form)
target = request.form.get('target_language')
if "file" not in request.files:
print("No file 1")
return redirect(request.url)
file = request.files["file"]
if file.filename == "":
print("No file")
return redirect(request.url)
target = languages[target].lower()
print(file, target)
file.save(r'static/audio_from_video/original.mp4')
print("file saved")
videoclip = VideoFileClip(r'static/audio_from_video/original.mp4')
# Insert Local Audio File Path
videoclip.audio.write_audiofile(r"static/audio_from_video/audio.wav", codec='pcm_s16le')
print("audio extracted")
video_translator(r'static/audio_from_video/audio.wav', target, videoclip)
return {'text': 'success'}
def video_translator(file, target, videoclip):
transcript = ""
r = sr.Recognizer()
with sr.AudioFile(file) as source:
audio = r.record(source) # read the entire audio file
transcript = r.recognize_google(audio, key=None)
translated_text = text_translator(transcript, target)
translated_audio = gTTS(text=translated_text, lang=target, slow=False)
translated_audio.save(r'static/audio_from_video/translated_audio.wav')
audioclip = AudioFileClip(r'static/audio_from_video/translated_audio.wav')
# adding audio to the video clip
new_audioclip = CompositeAudioClip([audioclip])
videoclip.audio = new_audioclip
videoclip.write_videofile(r"static/audio_from_video/translated_video.mp4")
def audio_translator(text, target):
print("inside audio traslate")
""" Translate audio from source language to target language
Args:
text (str): transcription of audio file in source language
target (str): target language for translation
Returns (none): It generates audio file in target language and stores it locally
"""
try:
speak = gTTS(text=text, lang=target, slow=False)
except:
print("error")
speak.save(r"static/translated_audio/captured_voice.mp3")
def text_translator(text, target):
"""Translate given text to target language
Args:
text (str): text to be translated
target (str): target language
Returns:
str: translated text
"""
print(target)
translator = Translator()
translation = translator.translate(text, dest=target)
translated_text = translation.text
print(target)
print(translation.text)
return translated_text
if __name__ == '__main__':
app.run(host='127.0.0.1', port=8000, debug=True)