impeghe_drc_tables.h

/* 	Copyright (c) [2022] Ittiam Systems Pvt. Ltd.
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   to endorse or promote products derived from this software without
   specific prior written permission.

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---------------------------------------------------------------
*/

#ifndef IMPEGHE_DRC_TABLES_H
#define IMPEGHE_DRC_TABLES_H

extern const FLOAT32 impeghe_downmix_coeff[16];
extern const FLOAT32 impeghe_downmix_coeff_lfe[16];
extern const FLOAT32 impeghe_channel_weight[16];
extern const FLOAT32 impeghe_downmix_coeff_v1[32];
extern const FLOAT32 impeghe_eq_slope_table[16];
extern const FLOAT32 impeghe_eq_gain_delta_table[32];
extern const FLOAT32 impeghe_zero_pole_radius_table[128];
extern const FLOAT32 impeghe_zero_pole_angle_table[128];

typedef struct
{
  WORD32 size;
  WORD32 code;
  WORD32 value;
} ia_drc_delta_time_code_table_entry_struct;

typedef struct
{
  WORD32 size;
  WORD32 code;
  FLOAT32 value;
  WORD32 index;
} ia_drc_slope_code_table_entry_struct;

typedef struct
{
  WORD32 size;
  WORD32 code;
  FLOAT32 value;
} ia_drc_delta_gain_code_entry_struct;

VOID impeghe_drc_generate_delta_time_code_table(
    const WORD32 num_gain_values_max,
    ia_drc_delta_time_code_table_entry_struct *delta_time_code_table_item);

VOID impeghe_drc_get_delta_gain_code_table(
    const WORD32 gain_coding_profile,
    ia_drc_delta_gain_code_entry_struct const **pstr_delta_gain_code_table, WORD32 *num_entries);

const ia_drc_slope_code_table_entry_struct *impeghe_drc_get_slope_code_table_by_value(VOID);

FLOAT32 impeghe_drc_decode_slope_idx_value(const WORD32 slope_code_index);

FLOAT32 impeghe_drc_decode_slope_idx_magnitude(const WORD32 slope_code_index);

#endif /*IMPEGHE_DRC_TABLES_H*/