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FFmpeg-based Interval Timer for Sport and Exercise

I am the one of the cycling captain of UEA Triathlon Club for the academic year of 2017-2018. I always find it hard to keep track of the set in a turbo session for some reason.

I used to use a Matlab-based countdown timer 1). However it always freezes after 558 seconds had elapsed - if you set a 10-minute countdown timer, it will freeze at 42 seconds. I can't be bothered to fix the Matlab code.

After digging through FFmpeg documentation 2) and the Internet, I figured out how to generate a text-based video.

I have to say FFmpeg is one of my most abused software. Last time I used FFmpeg to upload arbitrary file to Youtube 3).

You can download it at

Example output

public/ffmpeg-based_interval_timer_for_sport_and_exercise.txt · Last modified: 2018/03/31 00:38 by