The Notes

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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 [(https://uk.mathworks.com/matlabcentral/fileexchange/18165-countdown)]. 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 [(https://trac.ffmpeg.org/wiki)] 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 [(https://github.com/fangfufu/Matlab-Data-Video-Converter)].  

You can download it at [[https://github.com/fangfufu/make_interval_timer_video]].

===== Example output =====
[[https://www.youtube.com/watch?v=CYHr1SqeTHw|The turbo session set on 2018-02-08]]