# -- camera.py --
# Starts a low latency video stream with openCV 
# -- (Requires enabling legacy camera libraries) 

import cv2
import numpy
from flask import Flask, render_template, Response, stream_with_context, request

video = cv2.VideoCapture(0)
app = Flask('__name__')

def video_stream():
    while True:
        ret, frame = video.read()
        if not ret:
            break;
        else:
            ret, buffer = cv2.imencode('.jpeg',frame)
            frame = buffer.tobytes()
            yield (b' --frame\r\n' b'Content-type: image/jpeg\r\n\r\n' + frame +b'\r\n')


@app.route('/camera')
def camera():
    return render_template('camera.html')


@app.route('/video_feed')
def video_feed():
    return Response(video_stream(), mimetype='multipart/x-mixed-replace; boundary=frame')


app.run(host='0.0.0.0', port = '5000', debug=False)