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      1 /******************************************************************************
      2  *
      3  * Copyright (C) 2018 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at:
      8  *
      9  * http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  *
     17  *****************************************************************************
     18  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
     19 */
     20 #ifndef IMPD_DRC_GAIN_DECODER2_H
     21 #define IMPD_DRC_GAIN_DECODER2_H
     22 
     23 #ifndef M_PI
     24 #define M_PI (3.14159265358979323846)
     25 #endif
     26 
     27 typedef struct ia_drc_gain_dec_struct {
     28   WORD32 audio_num_chan;
     29   ia_drc_params_struct ia_drc_params_struct;
     30   ia_drc_gain_buffers_struct drc_gain_buffers;
     31   ia_audio_band_buffer_struct audio_band_buffer;
     32   ia_overlap_params_struct str_overlap_params;
     33   ia_filter_banks_struct ia_filter_banks_struct;
     34   ia_audio_in_out_buf audio_in_out_buf;
     35   ia_parametric_drc_params_struct parametricdrc_params;
     36   shape_filter_block shape_filter_block[CHANNEL_GROUP_COUNT_MAX];
     37   ia_eq_set_struct* eq_set;
     38 } ia_drc_gain_dec_struct;
     39 
     40 WORD32 impd_init_drc_decode(WORD32 frame_size, WORD32 sample_rate,
     41                             WORD32 gain_delay_samples, WORD32 delay_mode,
     42                             WORD32 sub_band_domain_mode,
     43                             ia_drc_gain_dec_struct* p_drc_gain_dec_structs);
     44 
     45 WORD32 impd_init_drc_decode_post_config(
     46     WORD32 audio_num_chan, WORD32* drc_set_id_processed,
     47     WORD32* downmix_id_processed, WORD32 num_sets_processed,
     48     WORD32 eq_set_id_processed,
     49 
     50     ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     51     ia_drc_config* pstr_drc_config,
     52     ia_drc_loudness_info_set_struct* pstr_loudness_info, pVOID* mem_ptr
     53 
     54     );
     55 
     56 WORD32 impd_drc_process_time_domain(
     57     ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     58     ia_drc_config* pstr_drc_config, ia_drc_gain_struct* pstr_drc_gain,
     59     FLOAT32* audio_in_out_buf[], FLOAT32 loudness_normalization_gain_db,
     60     FLOAT32 boost, FLOAT32 compress, WORD32 drc_characteristic);
     61 
     62 WORD32 impd_drc_process_freq_domain(
     63     ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     64     ia_drc_config* pstr_drc_config, ia_drc_gain_struct* pstr_drc_gain,
     65     FLOAT32* audio_real_buff[], FLOAT32* audio_imag_buff[],
     66     FLOAT32 loudness_normalization_gain_db, FLOAT32 boost, FLOAT32 compress,
     67     WORD32 drc_characteristic);
     68 
     69 VOID impd_get_parametric_drc_delay(
     70     ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     71     ia_drc_config* pstr_drc_config, WORD32* parametric_drc_delay,
     72     WORD32* parametric_drc_delay_max);
     73 
     74 VOID impd_get_eq_delay(ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     75                        ia_drc_config* pstr_drc_config, WORD32* eq_delay,
     76                        WORD32* eq_delay_max);
     77 
     78 WORD32
     79 impd_get_drc_gain(ia_drc_gain_dec_struct* p_drc_gain_dec_structs,
     80                   ia_drc_config* pstr_drc_config,
     81                   ia_drc_gain_struct* pstr_drc_gain, FLOAT32 compress,
     82                   FLOAT32 boost, WORD32 characteristic_index,
     83                   FLOAT32 loudness_normalization_gain_db, WORD32 sub_drc_index,
     84                   ia_drc_gain_buffers_struct* drc_gain_buffers);
     85 
     86 #endif
     87