Function cmsis_dsp_sys_pregenerated::arm_dct4_init_q31

pub unsafe extern "C" fn arm_dct4_init_q31(
    S: *mut arm_dct4_instance_q31, 
    S_RFFT: *mut arm_rfft_instance_q31, 
    S_CFFT: *mut arm_cfft_radix4_instance_q31, 
    N: u16, 
    Nby2: u16, 
    normalize: q31_t
) -> Type

@brief Initialization function for the Q31 DCT4/IDCT4. @param[in,out] S points to an instance of Q31 DCT4/IDCT4 structure. @param[in] S_RFFT points to an instance of Q31 RFFT/RIFFT structure @param[in] S_CFFT points to an instance of Q31 CFFT/CIFFT structure @param[in] N length of the DCT4. @param[in] Nby2 half of the length of the DCT4. @param[in] normalize normalizing factor. @return arm_status function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if N is not a supported transform length.