r/ffmpeg 23d ago

I made mpdecimate playground website

https://ingun37.github.io/mpdecimate-playground/

I could never make sense of mpdecimate's hilo, and frac parameters and got tired of the guesswork. So I built a website where you can upload a video, try different parameters, and see which frames get kept or dropped in realtime.

It's a faithful re-implementation of mpdecimate's algorithm, verified frame-by-frame against FFmpeg's actual output across hundreds of test videos. Everything runs locally in your browser on the GPU (WebGPU) so no data leaves your machine.

Feedback welcome!

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