Callisto4Bootloader: arm_dct4_instance_q15 Struct Reference

Callisto4Bootloader

Data Fields
arm_dct4_instance_q15 Struct Reference

Instance structure for the Q15 DCT4/IDCT4 function. More...

`#include <arm_math.h>`

## Data Fields

uint16_t | N
uint16_t | Nby2
q15_t | normalize
const q15_t * | pTwiddle
const q15_t * | pCosFactor
arm_rfft_instance_q15 * | pRfft
arm_cfft_radix4_instance_q15 * | pCfft

## Detailed Description

Instance structure for the Q15 DCT4/IDCT4 function.

Definition at line 2367 of file arm_math.h.

## Field Documentation

## ◆ N

uint16_t arm_dct4_instance_q15::N

length of the DCT4.

Definition at line 2369 of file arm_math.h.

## ◆ Nby2

uint16_t arm_dct4_instance_q15::Nby2

half of the length of the DCT4.

Definition at line 2370 of file arm_math.h.

## ◆ normalize

q15_t arm_dct4_instance_q15::normalize

normalizing factor.

Definition at line 2371 of file arm_math.h.

## ◆ pCfft

arm_cfft_radix4_instance_q15* arm_dct4_instance_q15::pCfft

points to the complex FFT instance.

Definition at line 2375 of file arm_math.h.

## ◆ pCosFactor

const q15_t* arm_dct4_instance_q15::pCosFactor

points to the cosFactor table.

Definition at line 2373 of file arm_math.h.

## ◆ pRfft

arm_rfft_instance_q15* arm_dct4_instance_q15::pRfft

points to the real FFT instance.

Definition at line 2374 of file arm_math.h.

## ◆ pTwiddle

const q15_t* arm_dct4_instance_q15::pTwiddle

points to the twiddle factor table.

Definition at line 2372 of file arm_math.h.

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

- CMSIS/arm_math.h