/****************************************************************************** * * 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