A small freedom area.

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Dealing with the ARM AArch64 SIMD documentation

Fri 26 May 2017

The ARMv8 instruction set documentation has always been garbage, and particularly the SIMD sections. In comparison, the Intel documentation provides...

prog, fun

Understanding selective coloring in Adobe Photoshop

Sat 07 Jan 2017

Photoshop has many interesting color filters, most of them being perfidiously documented such that you can understand how to use...

ffmpeg, reverse, algo, av

High quality GIF with FFmpeg

Mon 16 Mar 2015

About two years ago, I tried to improve the support of the GIF encoding in FFmpeg to make it at...

fun, gif, ffmpeg, av

Templating in C

Sat 28 Feb 2015

The question of how to do templating in C is often raised, and I couldn't find a good overview of...

prog

Butchering HQX scaling filters

Sat 21 Jun 2014

The [HQX filters][wphqx], namely hq2x, hq3x and hq4x, are well-known pixel art scalers. They are mainly used by old console...

algo, prog, reverse, fun, av, ffmpeg

Kanji 3D Mapping fun hack

Tue 14 May 2013

In my [previous post][learn-japanese], I tried to build a map of the Kanjis. The result was barely useful, and not...

trick, prog, opengl, fun

Learning Japanese the nerd way

Sun 24 Feb 2013

A few months ago, I finished school and quit my job around the same time. After waiting several years for...

mylife, thoughts, trick, whatever, prog, fun

Map for xkcd No:1110

Fri 21 Sep 2012

Three times a week, Randall Munroe draws a new comic entry on xkcd.com. This Wednesday, the comic was quite unusual...

fun, prog

The music classifying nightmare

Sat 08 Sep 2012

While I accumulated music files over the years, the main issue I came across wasn't how to not get caught...

music, thoughts, av

Fun and canny optim for a Canny Edge Detector

Sat 08 Sep 2012

The *canny edge detector* is likely the most commonly implemented edge detection algorithm. It's generally a nice filter to write...

fun, trick, prog, algo, ffmpeg, av