[−][src]Struct rustfft::algorithm::MixedRadix
Implementation of the Mixed-Radix FFT algorithm
This algorithm factors a size n FFT into n1 * n2, computes several inner FFTs of size n1 and n2, then combines the results to get the final answer
// Computes a forward FFT of size 1200, using the Mixed-Radix Algorithm use rustfft::algorithm::MixedRadix; use rustfft::{FFT, FFTplanner}; use rustfft::num_complex::Complex; use rustfft::num_traits::Zero; let mut input: Vec<Complex<f32>> = vec![Zero::zero(); 1200]; let mut output: Vec<Complex<f32>> = vec![Zero::zero(); 1200]; // we need to find an n1 and n2 such that n1 * n2 == 1200 // n1 = 30 and n2 = 40 satisfies this let mut planner = FFTplanner::new(false); let inner_fft_n1 = planner.plan_fft(30); let inner_fft_n2 = planner.plan_fft(40); // the mixed radix FFT length will be inner_fft_n1.len() * inner_fft_n2.len() = 1200 let fft = MixedRadix::new(inner_fft_n1, inner_fft_n2); fft.process(&mut input, &mut output);
Methods
impl<T: FFTnum> MixedRadix<T>
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pub fn new(width_fft: Arc<dyn FFT<T>>, height_fft: Arc<dyn FFT<T>>) -> Self
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Creates a FFT instance which will process inputs/outputs of size width_fft.len() * height_fft.len()
Trait Implementations
impl<T: FFTnum> FFT<T> for MixedRadix<T>
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fn process(&self, input: &mut [Complex<T>], output: &mut [Complex<T>])
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fn process_multi(&self, input: &mut [Complex<T>], output: &mut [Complex<T>])
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impl<T> IsInverse for MixedRadix<T>
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fn is_inverse(&self) -> bool
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impl<T> Length for MixedRadix<T>
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Auto Trait Implementations
impl<T> !RefUnwindSafe for MixedRadix<T>
impl<T> Send for MixedRadix<T> where
T: Send,
T: Send,
impl<T> Sync for MixedRadix<T> where
T: Sync,
T: Sync,
impl<T> Unpin for MixedRadix<T>
impl<T> !UnwindSafe for MixedRadix<T>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,