arm_dct4_instance_q15 Struct Reference

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

#include <arm_math.h>

Public Attributes
uint16_t	N
uint16_t	Nby2
q15_t	normalize
arm_cfft_radix4_instance_q15 *	pCfft
q15_t *	pCosFactor
arm_rfft_instance_q15 *	pRfft
q15_t *	pTwiddle

Detailed Description

Instance structure for the Q15 DCT4/IDCT4 function.

Definition at line 2457 of file arm_math.h.

Member Data Documentation

N

uint16_t arm_dct4_instance_q15::N

length of the DCT4.

Definition at line 2459 of file arm_math.h.

Nby2

uint16_t arm_dct4_instance_q15::Nby2

half of the length of the DCT4.

Definition at line 2460 of file arm_math.h.

normalize

q15_t arm_dct4_instance_q15::normalize

normalizing factor.

Definition at line 2461 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 2465 of file arm_math.h.

pCosFactor

q15_t* arm_dct4_instance_q15::pCosFactor

points to the cosFactor table.

Definition at line 2463 of file arm_math.h.

pRfft

arm_rfft_instance_q15* arm_dct4_instance_q15::pRfft

points to the real FFT instance.

Definition at line 2464 of file arm_math.h.

pTwiddle

q15_t* arm_dct4_instance_q15::pTwiddle

points to the twiddle factor table.

Definition at line 2462 of file arm_math.h.

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

• arm_math.h