FFTPow2Plan Struct Reference

Reusable radix-2 complex FFT plan for power-of-two transform lengths. More...

#include <fft_plan.h>

Public Attributes
size_t	n
size_t	levels
size_t *	bit_reverse
double complex *	stage_twiddles

Detailed Description

Reusable radix-2 complex FFT plan for power-of-two transform lengths.

An initialized plan owns its bit-reversal table, twiddle storage, and optional vDSP scratch/setup resources until fft_pow2_plan_destroy() is called.

Member Data Documentation

bit_reverse

size_t* FFTPow2Plan::bit_reverse

Owned bit-reversal index table.

levels

size_t FFTPow2Plan::levels

Number of radix-2 stages.

n

size_t FFTPow2Plan::n

Transform length.

stage_twiddles

double complex* FFTPow2Plan::stage_twiddles

Owned per-stage twiddle-factor table.

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The documentation for this struct was generated from the following file:

• fft_plan.h