parking_app.py

#!/usr/bin/env python
import os
from importlib import import_module
from flask import Flask, render_template, Response

# import camera driver
if os.environ.get('CAMERA'):
    Camera = import_module('camera_' + os.environ['CAMERA']).Camera
else:
    from parking_prediction import Camera

# Raspberry Pi camera module (requires picamera package)
# from camera_pi import Camera

app = Flask(__name__)

@app.route('/')
def index():
    """Video streaming home page."""
    print("index page")
    return render_template('parking_cnn_page.html')

def gen(camera):
    """Video streaming generator function."""
    print("Gen camera obj")
    while True:
        frame = camera.get_frame()
        yield (b'--frame\r\n'b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')

@app.route('/video_feed')
def video_feed():
    print("video feed page")
    """Video streaming route. Put this in the src attribute of an img tag."""
    return Response(gen(Camera()), mimetype='multipart/x-mixed-replace; boundary=frame')

if __name__ == '__main__':
    app.run(host='127.0.0.1', port=62597, threaded=True)