How to extract all the frames from a video using FFmpeg?

Tech QnA
1

I want to extract all the frames of a video into a folder. I’ve heard that FFmpeg is the tool for the task but don’t know how to do it.

2

You heard correctly, FFmpeg is the right tool to achieve your task. You can use the following FFmpeg command to extract all frames from a video
ffmpeg -r 1 -i file.mp4 -r 1 folder_name/frame_%04d.png

3

Why is this " -r " flag used?

4

So basically, there is no frame rate for a collection of image files. Use “ -r “ before the input if you wish to under sample the video file.

5

Is it possible to resize a particular image of the frame of a video or what if I wish to take the screenshot image in ffmpeg?

6

Yes, For resizing the image:

Use the -s flag in the command

ffmpeg -i file.mp4 -s 640x480 %04d.jpg
For screenshot add -frames:v 1 in the command as shown below:
ffmpeg -ss 00:00:04 -i filemp4 -frames:v 1 screenshot.png