How to read, write and play video using OpenCV in python

i'm trying to save my video to an mp4 file but at the moment to see the properties of the file saved it has only a few bytes.

总结来说，通过OpenCV和Python，我们可以轻松地保存mp4视频，同时进行各种图像处理操作，如人脸检测。理解并掌握`VideoWriter`类以及相关的编码概念是实现这一 ...

My name is Toan. Currently, I'm using OpenCV-C++ to write video *.mp4 type. I can write video .avi type but It's take a lot of storage. About ...

The attached Python fails to write the *.mp4 file, but succeeds to write the *.avi file when the corresponding line is un-commented.

fourcc = cv2.VideoWriter_fourcc(*'XVID')# 表示MP4 編碼格示，副檔名為.mp4 fourcc = cv2.VideoWriter_fourcc('M', 'P', '4', 'V') fourcc = cv2 ...

I want to capture video from a webcam and save it to an mp4 file using opencv. I found example code on stackoverflow (below) that works great.

How to save video capture in mp4 format with opencv python · cv2.VideoWriter(...) but not all cobinations of codec and file extension can work.

這篇教學會介紹OpenCV 裡的VideoWriter() 方法，透過這個方法，可以將讀取到的影片( 電腦中的影片或攝影鏡頭拍攝的影片)，進行轉檔或轉換色彩，儲存成新的影片檔。

To save a video in OpenCV cv.VideoWriter() method is used. Note: For more information, refer to Introduction to OpenCV.

In this article, we will discuss how to write to a video using OpenCV in Python. Approach Syntax: cap = cv2.VideoCapture(path)