Python | Play a video in reverse mode using OpenCV

# Python program to play a video
# in reverse mode using opencv 

# import cv2 library
import cv2

# videoCapture method of cv2 return video object

# Pass absolute address of video file 
cap = cv2.VideoCapture("video_file_location")

# read method of video object will return
# a tuple with 1st element denotes whether
# the frame was read successfully or not,
# 2nd element is the actual frame.

# Grab the current frame.
check , vid = cap.read()

# counter variable for
# counting frames
counter = 0

# Initialize the value
# of check variable
check = True

frame_list = []

# If reached the end of the video 
# then we got False value of check.

# keep looping until we
# got False value of check.
while(check == True):
    
    # imwrite method of cv2 saves the 
    # image to the specified format.
    cv2.imwrite("frame%d.jpg" %counter , vid)
    check , vid = cap.read()
    
    # Add each frame in the list by
    # using append method of the List
    frame_list.append(vid)
    
    # increment the counter by 1
    counter += 1

# last value in the frame_list is None
# because when video reaches to the end
# then false value store in check variable
# and None value is store in vide variable.

# removing the last value from the 
# frame_list by using pop method of List
frame_list.pop()

# looping in the List of frames.
for frame in frame_list:
    
    # show the frame.
    cv2.imshow("Frame" , frame)
    
    # waitkey method to stopping the frame
    # for some time. q key is presses,
    # stop the loop
    if cv2.waitKey(25) and 0xFF == ord("q"):
        break
    
# release method of video 
# object clean the input video
cap.release()

# close any open windows
cv2.destroyAllWindows()

# reverse the order of the element 
# present in the list by using
# reverse method of the List.
frame_list.reverse()

for frame in frame_list:
    cv2.imshow("Frame" , frame)
    if cv2.waitKey(25) and 0xFF == ord("q"):
        break

cap.release()
cv2.destroyAllWindows()