arm_dct4_instance_f32 Struct Reference

Instance structure for the floating-point DCT4/IDCT4 function. More...

#include <arm_math.h>

Data Fields
uint16_t	N
uint16_t	Nby2
float32_t	normalize
float32_t *	pTwiddle
float32_t *	pCosFactor
arm_rfft_instance_f32 *	pRfft
arm_cfft_radix4_instance_f32 *	pCfft

Detailed Description

Instance structure for the floating-point DCT4/IDCT4 function.

Definition at line 2254 of file arm_math.h.

Field Documentation

uint16_t N

length of the DCT4.

Definition at line 2256 of file arm_math.h.

uint16_t Nby2

half of the length of the DCT4.

Definition at line 2257 of file arm_math.h.

float32_t normalize

normalizing factor.

Definition at line 2258 of file arm_math.h.

arm_cfft_radix4_instance_f32* pCfft

points to the complex FFT instance.

Definition at line 2262 of file arm_math.h.

float32_t* pCosFactor

points to the cosFactor table.

Definition at line 2260 of file arm_math.h.

arm_rfft_instance_f32* pRfft

points to the real FFT instance.

Definition at line 2261 of file arm_math.h.

float32_t* pTwiddle

points to the twiddle factor table.

Definition at line 2259 of file arm_math.h.

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

• C:/Users/Torsten/Documents/Eclipse_WS2/STM32F769IDiscovery/CMSIS/core/arm_math.h