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arm_dct4_init_q31.c File Reference

Functions

arm_status arm_dct4_init_q31 (arm_dct4_instance_q31 *S, arm_rfft_instance_q31 *S_RFFT, arm_cfft_radix4_instance_q31 *S_CFFT, uint16_t N, uint16_t Nby2, q31_t normalize)
 Initialization function for the Q31 DCT4/IDCT4. More...
 

Variables

static const q31_t WeightsQ31_128 [256]
 
static const q31_t WeightsQ31_512 [1024]
 
static const q31_t WeightsQ31_2048 [4096]
 
static const q31_t WeightsQ31_8192 [16384]
 
static const q31_t cos_factorsQ31_128 [128]
 
static const q31_t cos_factorsQ31_512 [512]
 
static const q31_t cos_factorsQ31_2048 [2048]
 
static const q31_t cos_factorsQ31_8192 [8192]