Transcode from C to Golang: Claude vs Codex vs Gemini • 20 Sep 2025
TL;DR: I compared three AI coding agents (Claude Code, Codex CLI, Gemini CLI) for transcoding an existing audio-processing C program to Golang.
The clear winner in this case was OpenAI’s Codex. See the results on github.com/pforret/leqm-nrt.
Creating image reveal videos with ffmpeg and primitive (bash) • 21 Jan 2021
One of the projects I started during the lockdown is @squaredforwork which is now named “Guess the movie?” . It is based on years of experimenting with image manipulation and information reduction. Basically: how much visual information do you need...
Running a CPU benchmark on Apple Silicon M1 (bash) • 13 Jan 2021
When I started working with my Mac Mini M1, I felt it was faster, but I couldn’t really compare with a proper benchmark. I work a lot with video so I created an Apple (M1 and older) benchmark that is...
Convert Black/White footage to thermographic-like video • 11 Nov 2013
I am doing some really cool research lately concerning video conversion and one of the issues I ran into, concerns infrared imaging. In short: all the ‘cool’ thermographic (colour is dependent on radiated temperature) images are in color, and the...
Create your own iPhone ring tones • 13 Feb 2009
I’ve had my iPhone for a week (loving it!) and of course I want to make custom ring tones for some of my contacts. I figured out how it worked from posts like create-free-iphone-ringtones-using-itunes-in-windows but I developed my own workflow:...
Screenshots of a DVD with ffmpeg • 08 Feb 2008
I’ve been playing around a lot with video conversion lately and one of the tools I use often is the Swiss armyknife for video manipulation ‘ffmpeg‘. It does format conversion (MPEG1/2/4, Quicktime, AVI …) , rescaling, recompressing, frame rate conversion...
Peter Forret