Struct RealFftPlanner 

pub struct RealFftPlanner<T: FftNum> {
    pub(crate) planner: FftPlanner<T>,
    pub(crate) r2c_cache: HashMap<usize, Arc<dyn RealToComplex<T>>>,
    pub(crate) c2r_cache: HashMap<usize, Arc<dyn ComplexToReal<T>>>,
}

A planner is used to create FFTs. It caches results internally, so when making more than one FFT it is advisable to reuse the same planner.

Fields

planner: FftPlanner<T>

r2c_cache: HashMap<usize, Arc<dyn RealToComplex<T>>>

c2r_cache: HashMap<usize, Arc<dyn ComplexToReal<T>>>

Implementations

impl<T: FftNum> RealFftPlanner<T>

pub fn new() -> Self

Create a new planner.

pub fn plan_fft_forward(&mut self, len: usize) -> Arc<dyn RealToComplex<T>>

Plan a real-to-complex forward FFT. Returns the FFT in a shared reference. If requesting a second forward FFT of the same length, the planner will return a new reference to the already existing one.

pub fn plan_fft_inverse(&mut self, len: usize) -> Arc<dyn ComplexToReal<T>>

Plan a complex-to-real inverse FFT. Returns the FFT in a shared reference. If requesting a second inverse FFT of the same length, the planner will return a new reference to the already existing one.

Trait Implementations

impl<T: FftNum> Default for RealFftPlanner<T>

fn default() -> Self

Returns the “default value” for a type.