nrf_dsp_crest_i8_s()

int16_t nrf_dsp_crest_i8_s	(	const int8_t *	p_input,
		uint16_t	num,
		size32_t	stride,
		const int8_t *	p_absmax,
		nrf_dsp_stat_ctx_i8_t *	p_ctx )

#include <include/nrf_edgeai/dsp/statistic/nrf_dsp_crest.h>

Calculates Crest Factor (Peak to RMS) in a INT8 fixed-point vector ​​using values ​​in increments of 'stride'.

Parameters

[in]	p_input	Pointer to the input vector
[in]	num	Number of samples with 'stride' in input vector
[in]	stride	Vector element offset stride
[in]	p_absmax	Optional pointer to the absolute maximum(peak) in the vector
[in,out]	p_ctx	Optional pointer to the statistics context, this function will use p_ctx->value.tss for calculation if it exist

Returns

int16_t Crest Factor (Peak to RMS) in the vector, multiplied by NRF_DSP_FLOAT_TO_INT_FACTOR