Struct cmsis_dsp_sys_pregenerated::arm_dct4_instance_q15

#[repr(C)]pub struct arm_dct4_instance_q15 {
    pub N: u16,
    pub Nby2: u16,
    pub normalize: q15_t,
    pub pTwiddle: *const q15_t,
    pub pCosFactor: *const q15_t,
    pub pRfft: *mut arm_rfft_instance_q15,
    pub pCfft: *mut arm_cfft_radix4_instance_q15,
}

@brief Instance structure for the Q15 DCT4/IDCT4 function.

Fields

N: u16

< length of the DCT4.

Nby2: u16

< half of the length of the DCT4.

normalize: q15_t

< normalizing factor.

pTwiddle: *const q15_t

< points to the twiddle factor table.

pCosFactor: *const q15_t

< points to the cosFactor table.

pRfft: *mut arm_rfft_instance_q15

< points to the real FFT instance.

pCfft: *mut arm_cfft_radix4_instance_q15

< points to the complex FFT instance.