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