nrf_dsp_rfht_init()

int8_t nrf_dsp_rfht_init	(	nrf_dsp_rfht_instance_t *	p_inst,
		const void *	p_sin_table,
		const void *	p_tg_table,
		const uint16_t *	p_rev_bit_index,
		void *	p_window,
		const uint16_t	window_size,
		const uint16_t	log_n )

#include <include/nrf_edgeai/dsp/transform/nrf_dsp_rfht.h>

Initialize instance structure for the RFHT/RIFHT functions.

Parameters

[out]	p_inst	Pointer to instance structure to initialize
[in]	p_sin_table	Pointer to sin() table, with size of window_size / 4 elements
[in]	p_tg_table	Pointer to tg() table, with size of window_size / 4 elements
[in]	p_rev_bit_index	Pointer to index reordering array, with size of window_size elements
[in]	p_window	Pointer to RFHT result buffer, with size of window_size elements
[in]	window_size	Window buffer size to store result of FHT, should be powers of two in value (128/256/512/etc)
[in]	log_n	Value of log2(window_size)

Returns

0 on success, otherwise error