Rust bindings for the FFTW C-library for computing discrete Fourier transforms, as well as discrete cosine and sine transforms.

This repository includes three crates:

• fftw: A safe wrapper in Rust
• fftw-sys: An unsafe wrapper in Rust
• fftw-src: A crate for downloading and compiling the FFTW library

• source: Download and compile FFTW (default)
  • (Linux, macOS) Needs a C-compiler and the make build tool to compile the FFTW library
  • (Windows) Downloads a precompiled binary from the FFTW website
• system: Use the system's libfftw3 (experimental)
  • You must install FFTW before building this crate
  • For Linux systems, please install FFTW using your package manager, e.g. in Debian or Ubuntu run apt install libfftw3-dev
  • For macOS, please run brew install fftw by using homebrew
  • This feature is unsupported on Windows
• intel-mkl Use Intel MKL backend through intel-mkl-src
  • Only Linux and Windows are supported

See LICENSE.md