You can find the new project page on Codeberg.
To migrate an existing checkout, you can use the following command, or make a new checkout of the project from the new location.
git remote set-url origin https://codeberg.org/slembcke/lifft
git fetch origin master
git reset origin/master
You may additionally need to run git checkout . to cleanup the deleted files. This will also discard your local changes if you have made any.
To read more about why this project moved, you can read about it in PROJECT_HAS_MOVED.md.
The little FFT library.
A simple FFT and DCT (II/III/IV) library in a header only format that makes it easy to drop into a project and use. Measuring in at ~150 sloc for the FFT functions, and another ~70 for DCTs it's main goal is just to be small. Even though performance isn't the main concern, it's reasonably comparable to FFTPACK or FFTW.