A small freedom area.

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Finding specific multimedia samples

Thu 13 Aug 2020

When working in multimedia or image processing projects such as FFmpeg, we tend to accumulate a lot of samples over...

prog, ffmpeg, av

Story of debugging a crash in MPD

Wed 12 Aug 2020

Getting close to 3 years without posting. I haven't been peacefully enjoying a retired commoner life during all this time....

prog, debug, reverse, av

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

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

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

The FFmpeg/Libav situation

Sun 01 Jul 2012

One year and a half ago, an important part of FFmpeg developers decided to change the way the project was...

ffmpeg, libav, av

Audio, Video and Broadcasting industry

Tue 20 Mar 2012

When I started working on video related stuff, I didn't expect that one of the biggest issue will be to...

av

LAS Lossy Audio Spotter

Wed 10 Aug 2011

`FLAC` is supposed to be a lossless codec. Actually it is, but the source might not be. Stupid people, or...

music, audio analysis, prog, ffmpeg, fft, av

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