Get video duration using Python – OpenCV

OpenCV is one of the most popular cross-platform libraries and it is widely used in Deep Learning, image processing, video capturing, and many more. In this article, we will learn how to get the duration of a given video using python and computer vision. 

Prerequisites: 

• Opencv module
• datetime module

Installation

Opencv can be downloaded by running the given command on the terminal:

pip install Opencv

Approach

To get the duration of a video, the following steps has to be followed:

• Import required modules.
• Create a VideoCapture object  by providing video URL to VideoCapture() method.

Syntax:

VideoCapture("url")

• Count the total numbers of frames and frames per second of a given video by providing  cv2.CAP_PROP_FRAME_COUNT and cv2.CAP_PROP_FPS to get() method.
• Calculate the duration of the video in seconds by dividing frames and fps.
• Also, calculate video time using timedelta() method.

Syntax:

timedelta(time)

Implementation:

Python3

# import module
import cv2
import datetime

# create video capture object
data = cv2.VideoCapture('C:/Users/Asus/Documents/videoDuration.mp4')

# count the number of frames
frames = data.get(cv2.CAP_PROP_FRAME_COUNT)
fps = data.get(cv2.CAP_PROP_FPS)

# calculate duration of the video
seconds = round(frames / fps)
video_time = datetime.timedelta(seconds=seconds)
print(f"duration in seconds: {seconds}")
print(f"video time: {video_time}")

Output :

duration in seconds: 28
video time: 0:00:28