Added timestamp to mock camera stream

import time

import numpy as np

from PIL import Image, ImageFont, ImageDraw

from datetime import datetime

import logging

        )

        draw = ImageDraw.Draw(image)

        draw.text((20, 70), "Camera disconnected")

        draw.text((20, 70), "Camera disconnected: {}".format(datetime.now().strftime("%d/%m/%Y, %H:%M:%S")))

        image.save(self.stream, format="JPEG")

        # While the iterator is not closed

        try:

            while True:

                time.sleep(1 / self.framerate * 0.1)

                time.sleep(1)  # Only serve frames at 1fps

                # Reset stream

                self.stream.seek(0)

                self.stream.truncate()

                # Generate new dumm image

                self.generate_new_dummy_image()

                # Get frame data

                frame = self.stream.getvalue()

                # ensure the size of package is right