crossover_common.h File Reference

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Data Structures
struct	crossover_state
	Stores the state of one channel of the Crossover filter. More...

Macros
#define	CROSSOVER_2WAY_NUM_SINKS   2
#define	CROSSOVER_3WAY_NUM_SINKS   3
#define	CROSSOVER_4WAY_NUM_SINKS   4
#define	CROSSOVER_NUM_DELAYS_LR4   4
#define	CROSSOVER_MAX_LR4   3
#define	SOF_CROSSOVER_MAX_STREAMS   4

Typedefs
typedef void(*	crossover_split) (int32_t in, int32_t out[], struct crossover_state *state)

Functions
int	crossover_init_coef_ch (struct processing_module *mod, struct sof_eq_iir_biquad *coef, struct crossover_state *ch_state, int32_t num_sinks)
static void	crossover_reset_state_lr4 (struct processing_module *mod, struct iir_state_df1 *lr4)
	Reset the state of an LR4 filter.
static void	crossover_reset_state_ch (struct processing_module *mod, struct crossover_state *ch_state)
	Reset the state (coefficients and delay) of the crossover filter of a single channel.
static crossover_split	crossover_find_split_func (int32_t num_sinks)
	Returns Crossover split function.

Variables
const crossover_split	crossover_split_fnmap []

Macro Definition Documentation

CROSSOVER_2WAY_NUM_SINKS

#define CROSSOVER_2WAY_NUM_SINKS   2

CROSSOVER_3WAY_NUM_SINKS

#define CROSSOVER_3WAY_NUM_SINKS   3

CROSSOVER_4WAY_NUM_SINKS

#define CROSSOVER_4WAY_NUM_SINKS   4

CROSSOVER_MAX_LR4

#define CROSSOVER_MAX_LR4   3

CROSSOVER_NUM_DELAYS_LR4

#define CROSSOVER_NUM_DELAYS_LR4   4

SOF_CROSSOVER_MAX_STREAMS

#define SOF_CROSSOVER_MAX_STREAMS   4

Typedef Documentation

crossover_split

typedef void(* crossover_split) (int32_t in, int32_t out[], struct crossover_state *state)

Function Documentation

crossover_find_split_func()

static crossover_split crossover_find_split_func ( int32_t  num_sinks )

inlinestatic

Returns Crossover split function.

crossover_init_coef_ch()

int crossover_init_coef_ch	(	struct processing_module *	mod,
		struct sof_eq_iir_biquad *	coef,
		struct crossover_state *	ch_state,
		int32_t	num_sinks
	)

crossover_reset_state_ch()

static void crossover_reset_state_ch ( struct processing_module *  mod, struct crossover_state *  ch_state  )

inlinestatic

Reset the state (coefficients and delay) of the crossover filter of a single channel.

crossover_reset_state_lr4()

static void crossover_reset_state_lr4 ( struct processing_module *  mod, struct iir_state_df1 *  lr4  )

inlinestatic

Reset the state of an LR4 filter.

Variable Documentation

crossover_split_fnmap

const crossover_split crossover_split_fnmap[]

extern