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
q15_t *	pTwiddle
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 2346 of file arm_math.h.

Field Documentation

uint16_t N

length of the DCT4.

Definition at line 2348 of file arm_math.h.

uint16_t Nby2

half of the length of the DCT4.

Definition at line 2349 of file arm_math.h.

q15_t normalize

normalizing factor.

Definition at line 2350 of file arm_math.h.

arm_cfft_radix4_instance_q15* pCfft

points to the complex FFT instance.

Definition at line 2354 of file arm_math.h.

q15_t* pCosFactor

points to the cosFactor table.

Definition at line 2352 of file arm_math.h.

arm_rfft_instance_q15* pRfft

points to the real FFT instance.

Definition at line 2353 of file arm_math.h.

q15_t* pTwiddle

points to the twiddle factor table.

Definition at line 2351 of file arm_math.h.

---

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

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