fftw-rs

Bindings to FFTW.

This is very basic at the moment, but the plan is to provide high-performance bindings exposing the full power of FFTW in a type- and memory-safe manner, with convenience functions for performing simple tasks simply.

lib.rs:

High-level bindings to FFTW3: Fastest Fourier Transform in the West.

At the moment, this only provides one-dimensional complex-to-complex transforms via c2c_1d, with no explicit plan reuse.

There are some modules that provide helpers to make using the low-level interface manually slightly nicer and safer, in particular the lock module assists with keeping the use of FFTW3 threadsafe, and the plan module gives a nicer interface to creating and using plans.

Licensing

The FFTW3 library is licensed under GPLv2 (or later) with non-free/commercial licenses available from MIT via the FFTW website. On the other hand, these bindings are dual-licensed MIT/Apache-2.0, however, any application using FFTW3 via these bindings must still be distributed under the terms of the GPL (unless a non-free license has been arranged). The explicit difference in licenses is to enable code-reuse between these bindings and bindings to other FFT libraries.