Convert a video to a gif image

video_to_gif.py

# Author: Teshan Liyanage <teshanuka@gmail.com>
import imageio
import cv2
  
def convert(vid, frm , to, outfile, fps):
    cap = cv2.VideoCapture(vid)
    image_lst = []

    vid_fps = cap.get(cv2.CAP_PROP_FPS)
    assert vid_fps >= fps, f"Video fps {vid_fps} is smaller thank provided fps {fps}"
    idx = 0
    
    while True:
        ret, frame = cap.read()
        if not ret:
            break
          
        if frm*vid_fps <= idx < to*vid_fps:
            frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
            image_lst.append(frame_rgb)

        idx += 1
            
    cap.release()
    cv2.destroyAllWindows()
 
    imageio.mimsave(outfile, image_lst[::int(vid_fps/fps)], fps=fps)
    
if __name__ == '__main__':
    convert('cmv.mp4', 13, 15.8, 'op.gif', 5)