adec_state.h

// Copyright 2022 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.
#ifndef __ADEC_TYPES_H__
#define __ADEC_TYPES_H__
#include "bfp_math.h"
#include "xs3_math.h"
#include "aec_defines.h"
#include "adec_defines.h"
 
typedef enum {
    ADEC_NORMAL_AEC_MODE, 
    ADEC_DELAY_ESTIMATOR_MODE, 
} adec_mode_t;
 
typedef struct {
    int32_t bypass;
    int32_t force_de_cycle_trigger; 
}adec_config_t;
 
typedef struct {
    int32_t measured_delay_samples; 
    int32_t peak_power_phase_index; 
    float_s32_t peak_phase_power; 
    float_s32_t sum_phase_powers; 
    float_s32_t peak_to_average_ratio; 
    float_s32_t phase_power[AEC_LIB_MAX_PHASES]; 
}de_output_t;
 
typedef struct {
    int32_t delay_change_request_flag;
    int32_t requested_mic_delay_samples;
    int32_t reset_aec_flag;
    int32_t delay_estimator_enabled_flag;
    int32_t requested_delay_samples_debug;
} adec_output_t;
 
typedef struct {
    float_s32_t y_ema_energy_ch0;
    float_s32_t error_ema_energy_ch0;
    int32_t shadow_flag_ch0;
}aec_to_adec_t;
 
typedef struct {
    de_output_t from_de;
    aec_to_adec_t from_aec;
    int32_t far_end_active_flag;
}adec_input_t;
 
typedef struct {
    float_s32_t max_peak_to_average_ratio_since_reset; 
    float_s32_t peak_to_average_ratio_history[ADEC_PEAK_TO_AVERAGE_HISTORY_DEPTH + 1]; 
    float_s32_t peak_power_history[ADEC_PEAK_LINREG_HISTORY_SIZE]; 
    float_s32_t aec_peak_to_average_good_aec_threshold; 
    
    fixed_s32_t agm_q24; 
    fixed_s32_t erle_bad_bits_q24; 
    fixed_s32_t erle_good_bits_q24; 
    fixed_s32_t peak_phase_energy_trend_gain_q24; 
    fixed_s32_t erle_bad_gain_q24; 
 
    adec_mode_t mode; 
    int32_t peak_to_average_ratio_valid_flag;
    int32_t gated_milliseconds_since_mode_change; 
    int32_t last_measured_delay; 
    int32_t peak_power_history_idx; 
    int32_t peak_power_history_valid; 
    int32_t sf_copy_flag; 
    int32_t convergence_counter; 
    int32_t shadow_flag_counter; 
    adec_config_t adec_config; 
} adec_state_t;
 
 
#endif // __ADEC_TYPES_H__