camera_settings.py

import os
import cv2
import logging

attrib_list = {"exposure": cv2.CAP_PROP_EXPOSURE, "contrast": cv2.CAP_PROP_CONTRAST}


def check_settings():
    VIDEO_CHECK = cv2.VideoCapture(0)

    if not os.path.exists("camera_settings.log"):
        f = open("camera_settings.log", "w")
        for attrib, index in attrib_list.items():
            f.writelines(f"{attrib} = {VIDEO_CHECK.get(index)}\n")
        f.close()

    else:
        f = open("camera_settings.log", "r")
        lines = f.read().split("\n")
        for line in lines:
            attrib = line.split(" = ")
            if attrib[0] in attrib_list.keys():
                VIDEO_CHECK.set(attrib_list[attrib[0]], eval(attrib[1]))
        f.close()

    logging.info("Checking camera settings")
    for attrib, index in attrib_list.items():
        logging.info(f"camera setting {attrib} = {VIDEO_CHECK.get(index)}")

    VIDEO_CHECK.release()


def reset_settings():
    if not os.path.exists("camera_settings.log"):
        logging.INFO(
            "'camera_settings.log' does not exist! " "Verify your camera settings!"
        )
        return False
    else:
        VIDEO_CHECK = cv2.VideoCapture(0)
        f = open("camera_settings.log", "r")
        lines = f.read().split("\n")
        for line in lines:
            attrib = line.split(" = ")
            if attrib[0] in attrib_list.keys():
                VIDEO_CHECK.set(attrib_list[attrib[0]], eval(attrib[1]))
        f.close()
        VIDEO_CHECK.release()
    return True