OpenCVを使って複数動画を一発で連結する！ - Qiita

import cv2 import glob def comb_movie(movie_files,out_path): # 形式はmp4 fourcc = cv2.VideoWriter_fourcc('m','p','4','v') # 動画情報の取得 movie = cv2.VideoCapture(movie_files[0]) fps = movie.get(cv2.CAP_PROP_FPS) height = movie.get(cv2.CAP_PROP_FRAME_HEIGHT) width = movie.get(cv2.CAP_PROP_FRAME_WIDTH) # 出力先のファイルを開く out = cv2.VideoWriter(out_path, int(fourcc), fps, (int(width), int(height))) for movies in (