bgr2rgb_opencv_python.py

import numpy as np
import cv2


cap = cv2.VideoCapture('path_to_video.mp4')
fourcc = cv2.VideoWriter_fourcc(*'mp4v')

name = 'output.mp4'
out = cv2.VideoWriter(name, fourcc, 25.0, (1920, 1080))

show_image = False
i = 0
while(cap.isOpened()):
    i += 1
    if i % 1000 == 0:
        print(f'frame{i}')

    ret, frame = cap.read()

    if ret:
        im_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
        img_rotate_180 = cv2.rotate(im_rgb, cv2.ROTATE_180)
        out.write(img_rotate_180)
    else:
        break

    if show_image:
        cv2.imshow('frame', img_rotate_180)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
cap.release()
out.release()
cv2.destroyAllWindows()

print("\nEnd of program")