How to get this sounddv.py file to run inside the html file using flask?-CodePudding

how do you add sounddv.py to flask and then run in html file?

I want to print this text in popup.html text = "You must be mumbling you have been checked " str(check_cnt) "times" this is the py code

Also I want to make that sounddv.py work inside my other html file.

sounddv.py

import sounddevice as sd
from numpy import linalg as LA
import numpy as np

duration = 20  

global cnt
global check_cnt
cnt = 0
check_cnt = 0

def print_sound(indata, outdata, frames, time, status):
    volume_norm = np.linalg.norm(indata)*10

    a = int(volume_norm)
    global cnt
    global check_cnt

    if a <= 28: 
        cnt = cnt   1
    
    if cnt == 300: 
        check_cnt  = 1
        text = "You must be mumbling you have been checked " str(check_cnt)  "times"
        cnt = 0

This is the popup html

popup.html

<!DOCTYPE html>
<html>
    <head>Popup!</head>
    <body>
        <p>
        </p>
    
    </body>
</html>

this is the app.py folder

app.py

import sounddevice as sd
from flask import Flask, render_template, Response
from flask_bootstrap import Bootstrap
import pymysql
from sounddv.py import print_sound 

app = Flask(__name__)
Bootstrap(app)

@app.route('/audio')
def audio_file():
    with sd.Stream(callback=print_sound):
        duration = 20
        sd.sleep(duration * 1000)
       return render_template("popup.html")


if __name__ == '__main__':
    app.run(host='127.0.0.1',port=5000, debug=True)

I'm new to Python :( I'm opened for any possible comments! Thanks

CodePudding user response：

Your print_sound function does not have any return value. You should add return value in your func. I think.

import sounddevice as sd
from flask import Flask, render_template, Response
from flask_bootstrap import Bootstrap
import pymysql
from sounddv.py import print_sound 

app = Flask(__name__)
Bootstrap(app)

@app.route('/audio')
def audio_file():
   ...
   return render_template("popup.html",html_context)


if __name__ == '__main__':
    app.run(host='127.0.0.1',port=5000, debug=True)

html:

<p> {{ html_context }} </p>

CodePudding user response：

In print_sound return text. Then call it inside your flask audio file function. Also add the variable in return render template like this:

return render_template('popup.html',text_var=text)

Also in popup.html use jinja ->{{text_var}}

    def print_sound(indata, outdata, frames, time, status):
    volume_norm = np.linalg.norm(indata)*10
    text=''

    a = int(volume_norm)
    global cnt
    global check_cnt

    if a <= 28: 
        cnt = cnt   1
    
    if cnt == 300: 
        check_cnt  = 1
        text = "You must be mumbling you have been checked " str(check_cnt)  "times"
        cnt = 0

return text



 @app.route('/audio')
def audio_file():
    with sd.Stream(callback=print_sound):
        duration = 20
        sd.sleep(duration * 1000)
        text=print_sound(...)
       return render_template("popup.html",text_var=text)