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/******************************************************************************
*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
#ifndef IMPD_PARAMETRIC_DRC_DEC_H
#define IMPD_PARAMETRIC_DRC_DEC_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ia_2nd_order_filt_coeff_struct_t {
FLOAT32 b0, b1, b2;
FLOAT32 a1, a2;
} ia_2nd_order_filt_coeff_struct;
typedef struct ia_2nd_order_filt_state_struct_t {
FLOAT32 z1, z2;
} ia_2nd_order_filt_state_struct;
typedef struct ia_parametric_drc_type_ff_params_struct_t {
WORD32 audio_num_chan;
WORD32 frame_size;
WORD32 sub_band_domain_mode;
WORD32 sub_band_count;
WORD32 level_estim_integration_time;
WORD32 level_estim_frame_index;
WORD32 level_estim_frame_count;
FLOAT32 level[PARAM_DRC_TYPE_FF_LEVEL_ESTIM_FRAME_COUNT_MAX];
WORD32 start_up_phase;
FLOAT32 level_estim_ch_weight[MAX_CHANNEL_COUNT];
WORD32 level_estim_k_weighting_type;
ia_2nd_order_filt_coeff_struct pre_filt_coeff;
ia_2nd_order_filt_coeff_struct rlb_filt_coeff;
ia_2nd_order_filt_state_struct pre_filt_state[MAX_CHANNEL_COUNT];
ia_2nd_order_filt_state_struct rlb_filt_state[MAX_CHANNEL_COUNT];
FLOAT32 weighting_filt[AUDIO_CODEC_SUBBAND_COUNT_MAX];
WORD32 sub_band_compensation_type;
ia_2nd_order_filt_coeff_struct filt_coeff_subband;
ia_2nd_order_filt_state_struct filt_state_subband_real[MAX_CHANNEL_COUNT];
ia_2nd_order_filt_state_struct filt_state_subband_imag[MAX_CHANNEL_COUNT];
FLOAT32 ref_level_parametric_drc;
WORD32 node_count;
WORD32 node_level[PARAM_DRC_TYPE_FF_NODE_COUNT_MAX];
WORD32 node_gain[PARAM_DRC_TYPE_FF_NODE_COUNT_MAX];
FLOAT32 gain_smooth_attack_alpha_slow;
FLOAT32 gain_smooth_rel_alpha_slow;
FLOAT32 gain_smooth_attack_alpha_fast;
FLOAT32 gain_smooth_rel_alpha_fast;
WORD32 gain_smooth_attack_threshold;
WORD32 gain_smooth_rel_threshold;
WORD32 gain_smooth_hold_off_count;
FLOAT32 db_level_smooth;
FLOAT32 db_gain_smooth;
WORD32 hold_counter;
} ia_parametric_drc_type_ff_params_struct;
typedef struct ia_parametric_drc_type_lim_params_struct_t {
WORD32 audio_num_chan;
WORD32 frame_size;
FLOAT32 level_estim_ch_weight[MAX_CHANNEL_COUNT];
UWORD32 attack;
FLOAT32 attack_constant;
FLOAT32 release_constant;
FLOAT32 attack_ms;
FLOAT32 release_ms;
FLOAT32 threshold;
UWORD32 channels;
UWORD32 sampling_rate;
FLOAT32 cor;
FLOAT32* max_buf;
FLOAT32* max_buf_slow;
UWORD32 max_buf_idx;
UWORD32 max_buf_slow_idx;
UWORD32 sec_len;
UWORD32 num_max_buf_sec;
UWORD32 max_buf_sec_idx;
UWORD32 max_buf_sec_ctr;
FLOAT64 smooth_state_0;
} ia_parametric_drc_type_lim_params_struct;
typedef struct ia_parametric_drc_instance_params_struct_t {
WORD32 disable_paramteric_drc;
WORD32 parametric_drc_type;
ia_spline_nodes_struct str_spline_nodes;
ia_parametric_drc_type_ff_params_struct str_parametric_drc_type_ff_params;
ia_parametric_drc_type_lim_params_struct str_parametric_drc_type_lim_params;
} ia_parametric_drc_instance_params_struct;
typedef struct ia_parametric_drc_params_struct_t {
WORD32 sampling_rate;
WORD32 audio_num_chan;
WORD32 sub_band_domain_mode;
WORD32 sub_band_count;
WORD32 num_nodes;
WORD32 drc_frame_size;
WORD32 parametric_drc_frame_size;
WORD32 parametric_drc_look_ahead_samples_max;
WORD32 reset_parametric_drc;
WORD32 parametric_drc_instance_count;
WORD32 parametric_drc_idx[PARAM_DRC_INSTANCE_COUNT_MAX];
WORD32 gain_set_index[PARAM_DRC_INSTANCE_COUNT_MAX];
WORD32 dwnmix_id_from_drc_instructions[PARAM_DRC_INSTANCE_COUNT_MAX];
WORD32 channel_map[PARAM_DRC_INSTANCE_COUNT_MAX][MAX_CHANNEL_COUNT];
ia_parametric_drc_instance_params_struct
str_parametric_drc_instance_params[PARAM_DRC_INSTANCE_COUNT_MAX];
} ia_parametric_drc_params_struct;
WORD32 impd_init_parametric_drc(
WORD32 drc_frame_size, WORD32 sampling_rate, WORD32 sub_band_domain_mode,
ia_parametric_drc_params_struct* pstr_parametric_drc_params);
WORD32 impd_init_parametric_drc_after_config(
ia_drc_config* pstr_drc_config,
ia_drc_loudness_info_set_struct* pstr_loudness_info,
ia_parametric_drc_params_struct* pstr_parametric_drc_params,
pVOID* mem_ptr);
WORD32
impd_init_lvl_est_filt_time(WORD32 level_estim_k_weighting_type,
WORD32 sampling_rate,
ia_2nd_order_filt_coeff_struct* pre_filt_coeff,
ia_2nd_order_filt_coeff_struct* rlb_filt_coeff);
WORD32
impd_init_lvl_est_filt_subband(
WORD32 level_estim_k_weighting_type, WORD32 sampling_rate,
WORD32 sub_band_domain_mode, WORD32 sub_band_count,
WORD32 sub_band_compensation_type, FLOAT32* weighting_filt,
ia_2nd_order_filt_coeff_struct* filt_coeff_subband);
WORD32
impd_parametric_ffwd_type_drc_reset(ia_parametric_drc_type_ff_params_struct*
pstr_parametric_ffwd_type_drc_params);
WORD32
impd_parametric_lim_type_drc_reset(WORD32 instance_idx,
ia_parametric_drc_type_lim_params_struct*
pstr_parametric_lim_type_drc_params);
WORD32
impd_parametric_drc_instance_process(
FLOAT32* audio_in_out_buf[], FLOAT32* audio_real_buff[],
FLOAT32* audio_imag_buff[],
ia_parametric_drc_params_struct* pstr_parametric_drc_params,
ia_parametric_drc_instance_params_struct*
pstr_parametric_drc_instance_params);
WORD32
impd_parametric_ffwd_type_drc_process(FLOAT32* audio_in_out_buf[],
FLOAT32* audio_real_buff[],
FLOAT32* audio_imag_buff[],
WORD32 nodeIdx,
ia_parametric_drc_type_ff_params_struct*
pstr_parametric_ffwd_type_drc_params,
ia_spline_nodes_struct* str_spline_nodes);
WORD32
impd_parametric_lim_type_drc_process(FLOAT32* audio_in_out_buf[],
FLOAT32 loudness_normalization_gain_db,
ia_parametric_drc_type_lim_params_struct*
pstr_parametric_lim_type_drc_params,
FLOAT32* lpcm_gains);
#ifdef __cplusplus
}
#endif
#endif
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