How to find out the length of an mp4 file?

Question

Python

There is an mp4 video. Need to know the length of this video in seconds

Answer 1

In google there are examples of a wagon and a small cart. You can search like this - "python get mp4 duration"
There are many libraries and wrappers for python. One of them is MoviePy. It is of course intended for video editing, but it can also be used to get the length of the video in seconds:
pip install moviepy

from moviepy.editor import VideoFileClip
clip = VideoFileClip("video.mp4")
print(clip.duration)
>>> 153.60

You can also look in the direction of ffmpeg, it will probably work faster)

Answer 2

ffprobe