text: /******************************************************************************
   *
   * 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
  */
  #include <stdio.h>
  #include <stdlib.h>
  #include <math.h>
  #include <assert.h>
  #include <string.h>
  #include "impd_type_def.h"
  
  #include "impd_drc_bitbuffer.h"
  #include "impd_drc_common.h"
  #include "impd_drc_interface.h"
  #include "impd_drc_parser_interface.h"
  
  WORD32
  impd_drc_dec_interface_process(ia_bit_buf_struct* it_bit_buff,
                                 ia_drc_interface_struct* pstr_drc_interface,
                                 UWORD8* it_bit_buf, WORD32 num_bit_stream_bits,
                                 WORD32* num_bits_read) {
    WORD32 err = 0;
  
    if (it_bit_buff != NULL && num_bit_stream_bits) {
      it_bit_buff = impd_create_init_bit_buf(it_bit_buff, it_bit_buf,
                                             num_bit_stream_bits / 8);
  
    } else {
      return -1;
    }
  
    err = impd_unidrc_interface_read(it_bit_buff, pstr_drc_interface);
    if (err) return (err);
  
    *num_bits_read = (it_bit_buff->size) - it_bit_buff->cnt_bits;
  
    return err;
  }
  
  WORD32
  impd_drc_dec_interface_add_effect_type(
      ia_drc_interface_struct* pstr_drc_interface, WORD32 drc_effect_type,
      WORD32 target_loudness, WORD32 loud_norm) {
    WORD32 err = 0;
    WORD32 i = 0;
  
    if (pstr_drc_interface != NULL) {
      pstr_drc_interface->interface_signat_flag = 0;
      for (i = 0; i < MAX_SIGNATURE_DATA_LENGTH_PLUS_ONE * 8; i++)
        pstr_drc_interface->drc_uni_interface_signature.interface_signat_data[i] =
            0;
  
      pstr_drc_interface->drc_uni_interface_signature.interface_signat_data_len =
          0;
  
      pstr_drc_interface->system_interface_flag = 1;
  
      pstr_drc_interface->system_interface.target_config_request_type = 0;
      pstr_drc_interface->system_interface.num_downmix_id_requests = 0;
      for (i = 0; i < MAX_NUM_DOWNMIX_ID_REQUESTS; i++) {
        pstr_drc_interface->system_interface.requested_dwnmix_id[i] = 0;
      }
      pstr_drc_interface->system_interface.requested_target_layout = 0;
      pstr_drc_interface->system_interface.requested_target_ch_count = 0;
  
      pstr_drc_interface->loudness_norm_ctrl_interface_flag = 1;
      if (loud_norm == 1) {
        pstr_drc_interface->loudness_norm_ctrl_interface
            .loudness_normalization_on = 1;
      } else {
        pstr_drc_interface->loudness_norm_ctrl_interface
            .loudness_normalization_on = 0;
      }
      pstr_drc_interface->loudness_norm_ctrl_interface.target_loudness =
          (FLOAT32)target_loudness;
  
      pstr_drc_interface->loudness_norm_parameter_interface_flag = 1;
      pstr_drc_interface->loudness_norm_param_interface.album_mode = 0;
      pstr_drc_interface->loudness_norm_param_interface.peak_limiter = 0;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_deviation_max = 1;
      pstr_drc_interface->loudness_norm_param_interface.loudness_deviation_max =
          63;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_measur_method = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .loudness_measurement_method = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_measur_system = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .loudness_measurement_system = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_measur_pre_proc = 0;
      pstr_drc_interface->loudness_norm_param_interface
          .loudness_measurement_pre_proc = 0;
      pstr_drc_interface->loudness_norm_param_interface
          .change_device_cut_off_freq = 1;
      pstr_drc_interface->loudness_norm_param_interface.device_cut_off_frequency =
          20;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_norm_gain_db_max = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .loudness_norm_gain_db_max = 1000.0;
      pstr_drc_interface->loudness_norm_param_interface
          .change_loudness_norm_gain_modification_db = 1;
      pstr_drc_interface->loudness_norm_param_interface
          .loudness_norm_gain_modification_db = 0.0;
      pstr_drc_interface->loudness_norm_param_interface
          .change_output_peak_level_max = 1;
      pstr_drc_interface->loudness_norm_param_interface.output_peak_level_max =
          0.0;
  
      pstr_drc_interface->drc_interface_flag = 1;
      if (drc_effect_type == -1) {
        pstr_drc_interface->drc_ctrl_interface.dynamic_range_control_on = 0;
        pstr_drc_interface->drc_ctrl_interface.requested_drc_effect_type[0][0] =
            0;
      } else if (drc_effect_type == 0) {
        pstr_drc_interface->drc_ctrl_interface.dynamic_range_control_on = 1;
        pstr_drc_interface->drc_ctrl_interface.num_drc_feature_requests = 0;
      } else {
        pstr_drc_interface->drc_ctrl_interface.dynamic_range_control_on = 1;
        pstr_drc_interface->drc_ctrl_interface.requested_drc_effect_type[0][0] =
            drc_effect_type;
        pstr_drc_interface->drc_ctrl_interface.num_drc_feature_requests = 3;
        pstr_drc_interface->drc_ctrl_interface.drc_feature_req_type[0] = 0;
        pstr_drc_interface->drc_ctrl_interface.drc_feature_req_type[1] = 1;
        pstr_drc_interface->drc_ctrl_interface.drc_feature_req_type[2] = 2;
        pstr_drc_interface->drc_ctrl_interface.requested_num_drc_effects[0] = 1;
        pstr_drc_interface->drc_ctrl_interface
            .desired_num_drc_effects_of_requested[0] = 1;
      }
  
      pstr_drc_interface->drc_ctrl_interface
          .requested_dyn_rng_measurement_type[0] = 0;
      pstr_drc_interface->drc_ctrl_interface
          .requested_dyn_range_is_single_val_flag[0] = 0;
      pstr_drc_interface->drc_ctrl_interface
          .requested_dyn_range_is_single_val_flag[1] = 0;
      pstr_drc_interface->drc_ctrl_interface.requested_dyn_range_min_val[1] =
          3.0f;
      pstr_drc_interface->drc_ctrl_interface.requested_dyn_range_max_val[1] =
          10.0f;
      pstr_drc_interface->drc_ctrl_interface.requested_drc_characteristic[2] = 3;
  
      pstr_drc_interface->drc_parameter_interface_flag = 1;
      pstr_drc_interface->drc_parameter_interface.change_compress = 1;
      pstr_drc_interface->drc_parameter_interface.change_boost = 1;
      pstr_drc_interface->drc_parameter_interface.compress = 1.0f;
      pstr_drc_interface->drc_parameter_interface.boost = 1.0f;
      pstr_drc_interface->drc_parameter_interface
          .change_drc_characteristic_target = 1;
      pstr_drc_interface->drc_parameter_interface.drc_characteristic_target = 0;
  
      pstr_drc_interface->drc_uni_interface_ext_flag = 0;
  
    } else {
      return UNEXPECTED_ERROR;
    }
  
    return err;
  }
  