mfsk-core 0.4.1

Pure-Rust library for WSJT-family digital amateur-radio modes (FT8/FT4/FST4/WSPR/JT9/JT65/Q65): protocol traits, DSP, FEC codecs, message codecs, decoders and synthesisers — unified behind a zero-cost generic abstraction.
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//! Generic DSP primitives shared by every MFSK protocol.
//!
//! Nothing in this module knows about FT8, FT4 or any specific modulation —
//! it operates on raw sample buffers, sample rates, and target frequencies.
//! Protocol-aware DSP (sync correlators, LLR, etc.) lives outside `dsp`.

// `downsample` requires an `Fft` backend; gate on the meta-feature
// (true if any of fft-rustfft / fft-microfft / fft-extern is on).
// `subtract` is FFT-free now (no rustfft consumer); always available
// once we have alloc.
#[cfg(any(feature = "fft-rustfft", feature = "fft-extern"))]
pub mod downsample;
pub mod gfsk;
pub mod resample;
pub mod subtract;

#[cfg(any(feature = "fft-rustfft", feature = "fft-extern"))]
pub use downsample::{DownsampleCfg, build_fft_cache, downsample, downsample_cached};
pub use gfsk::{GfskCfg, synth_f32, synth_i16};
pub use resample::{resample_f32_to_12k, resample_to_12k};
pub use subtract::{SubtractCfg, subtract_tones};