timelapse.py

import numpy as np
import os
import cv2
import datetime
import time
import glob
from utils import CFEVideoConf, image_resize

cap=cv2.VideoCapture(0)
save_path='saved-media/timelapse.mp4' 
frames_per_seconds=24.0
config= CFEVideoConf(cap, filepath=save_path, res='720p')
out= cv2.VideoWriter(save_path, config.video_type, frames_per_seconds, config.dims)
seconds_duration=10
seconds_between_shots= .25
timelapse_img_dir='images/timelapse/'

if not os.path.exists(timelapse_img_dir):
    os.mkdir(timelapse_img_dir)



now= datetime.datetime.now()
finish_time= now+ datetime.timedelta(seconds=seconds_duration)

i=0

while datetime.datetime.now() < finish_time:
    ret, frame = cap.read()
    filename= f"{timelapse_img_dir}/{i}.jpg"
    i+=1
    cv2.imwrite(filename, frame)
    out.write(frame)
    cv2.imshow('frame',frame)
    time.sleep(seconds_between_shots)
    if cv2.waitKey(20) & 0xFF == ord('q'):
        break

clear_images=True

def images_to_video(out, img_dir, clear_images=True):
    image_list = glob.glob(f"{img_dir}/*.jpg")
    sorted_images= sorted(image_list, key=os.path.getmtime)
    for file in sorted_images:
        image_frame= cv2.imread(file)
        out.write(image_frame)
    if clear_images:
        for file in image_list:
            os.remove(file)

images_to_video(out, timelapse_img_dir)
cap.release()
out.release()
cv2.destroyAllWindows()