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arm_dct4_instance_q31 Struct Reference

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

#include <arm_math.h>

Public Attributes

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.

Member Data Documentation

uint16_t arm_dct4_instance_q31::N

length of the DCT4.

uint16_t arm_dct4_instance_q31::Nby2

half of the length of the DCT4.

q31_t arm_dct4_instance_q31::normalize

normalizing factor.

arm_cfft_radix4_instance_q31* arm_dct4_instance_q31::pCfft

points to the complex FFT instance.

q31_t* arm_dct4_instance_q31::pCosFactor

points to the cosFactor table.

arm_rfft_instance_q31* arm_dct4_instance_q31::pRfft

points to the real FFT instance.

q31_t* arm_dct4_instance_q31::pTwiddle

points to the twiddle factor table.

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