How to extract frames in a video using ffmpeg?

You can follow the steps given below to extract all frames of a video using ffmpeg tool. 

• Download ffmpeg package for your OS

     https://www.ffmpeg.org/download.html#build-mac

• Unzip the folder and move to that particular folder 

      cd /Lion_Mountain_Lion_Mavericks_Yosemite_El-Captain_04.11.2016

• Extract frames using the following command:

./ffmpeg -i [your input video file] -r [frame rate] [output file format]

E.g.,

For a video names test.mp4 with frame rate of 8fps,

./ffmpeg -i test.mp4 -r 8/1 output%03d.jpeg

All the frames will be saved to the same directory which the command is executed.