arm_dct4_instance_q31 Struct Reference

Instance structure for the Q31 DCT4/IDCT4 function. More...

#include <arm_math.h>

Data Fields
uint16_t	N
uint16_t	Nby2
q31_t	normalize
q31_t *	pTwiddle
q31_t *	pCosFactor
arm_rfft_instance_q31 *	pRfft
arm_cfft_radix4_instance_q31 *	pCfft

Detailed Description

Instance structure for the Q31 DCT4/IDCT4 function.

Definition at line 2300 of file arm_math.h.

Field Documentation

uint16_t N

length of the DCT4.

Definition at line 2302 of file arm_math.h.

uint16_t Nby2

half of the length of the DCT4.

Definition at line 2303 of file arm_math.h.

q31_t normalize

normalizing factor.

Definition at line 2304 of file arm_math.h.

arm_cfft_radix4_instance_q31* pCfft

points to the complex FFT instance.

Definition at line 2308 of file arm_math.h.

q31_t* pCosFactor

points to the cosFactor table.

Definition at line 2306 of file arm_math.h.

arm_rfft_instance_q31* pRfft

points to the real FFT instance.

Definition at line 2307 of file arm_math.h.

q31_t* pTwiddle

points to the twiddle factor table.

Definition at line 2305 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