save_video

程序：

#!/usr/bin/env python3
# -*-coding:GBK -*- 
# author: diyue time:2019/10/22

import cv2

cap = cv2.VideoCapture(0)


# Define the codec and create VideoWriter object
fourcc = cv2.VideoWriter_fourcc(*'XVID')  # 使用XVID编码器
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (640, 480))  # 保存文件名、编码器、帧率、视频宽高

while cap.isOpened():
    ret, frame = cap.read()
    if ret:
        # frame = cv2.flip(frame, 0)  # 将所获取的这一帧图像绕x轴翻转一次，其他翻转方式参考get_picture一文

        # write the flipped frame
        out.write(frame)  # 向视屏对象写入一帧图像

        cv2.imshow('frame', frame)  # 显示这一帧图像
        if cv2.waitKey(1) & 0xff == ord('q'):
            break
    else:
        break

# Release everything if job is finished
cap.release()
out.release()
cv2.destroyAllWindows()

参考
https://blog.youkuaiyun.com/u012348774/article/details/78255130