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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 |
| length of the DCT4. | |
| uint16_t | Nby2 |
| half of the length of the DCT4. | |
| float32_t | normalize |
| normalizing factor. | |
| float32_t * | pTwiddle |
| points to the twiddle factor table. | |
| float32_t * | pCosFactor |
| points to the cosFactor table. | |
| arm_rfft_instance_f32 * | pRfft |
| points to the real FFT instance. | |
| arm_cfft_radix4_instance_f32 * | pCfft |
| points to the complex FFT instance. | |
Detailed Description
Instance structure for the floating-point DCT4/IDCT4 function.
Definition at line 2374 of file arm_math.h.
Field Documentation
| uint16_t N |
length of the DCT4.
Definition at line 2376 of file arm_math.h.
| uint16_t Nby2 |
half of the length of the DCT4.
Definition at line 2377 of file arm_math.h.
| float32_t normalize |
normalizing factor.
Definition at line 2378 of file arm_math.h.
points to the complex FFT instance.
Definition at line 2382 of file arm_math.h.
| float32_t* pCosFactor |
points to the cosFactor table.
Definition at line 2380 of file arm_math.h.
points to the real FFT instance.
Definition at line 2381 of file arm_math.h.
| float32_t* pTwiddle |
points to the twiddle factor table.
Definition at line 2379 of file arm_math.h.
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