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_DEC_H 21 #define IMPD_DRC_GAIN_DEC_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 typedef struct { 28 ia_node_struct str_node; 29 ia_node_struct prev_node; 30 FLOAT32 lpcm_gains[2 * AUDIO_CODEC_FRAME_SIZE_MAX + MAX_SIGNAL_DELAY]; 31 } ia_interp_buf_struct; 32 33 typedef struct { 34 WORD32 buf_interpolation_count; 35 ia_interp_buf_struct* buf_interpolation; 36 } ia_gain_buffer_struct; 37 38 typedef struct { 39 ia_gain_buffer_struct pstr_gain_buf[SEL_DRC_COUNT]; 40 } ia_drc_gain_buffers_struct; 41 42 typedef struct { 43 WORD32 gain_interpolation_type; 44 WORD32 gain_modification_flag; 45 WORD32 ducking_flag; 46 WORD32 clipping_flag; 47 ia_ducking_modifiers_struct* pstr_ducking_modifiers; 48 ia_gain_modifiers_struct* pstr_gain_modifiers; 49 WORD32 drc_characteristic_present; 50 WORD32 drc_source_characteristic_cicp_format; 51 WORD32 source_drc_characteristic; 52 ia_split_drc_characteristic_struct* split_source_characteristic_left; 53 ia_split_drc_characteristic_struct* split_source_characteristic_right; 54 WORD32 drc_target_characteristic_cicp_format; 55 WORD32 target_drc_characteristic; 56 ia_split_drc_characteristic_struct* split_target_characteristic_left; 57 ia_split_drc_characteristic_struct* split_target_characteristic_right; 58 WORD32 interpolation_loud_eq; 59 WORD32 limiter_peak_target_present; 60 FLOAT32 limiter_peak_target; 61 FLOAT32 loudness_normalization_gain_db; 62 WORD32 delta_tmin; 63 WORD32 characteristic_index; 64 FLOAT32 compress; 65 FLOAT32 boost; 66 } ia_interp_params_struct; 67 68 typedef struct { 69 WORD32 drc_instructions_index; 70 WORD32 drc_coeff_idx; 71 WORD32 dwnmix_instructions_index; 72 } ia_sel_drc_struct; 73 74 typedef struct { 75 WORD32 sample_rate; 76 WORD32 delta_tmin_default; 77 WORD32 drc_frame_size; 78 WORD32 delay_mode; 79 WORD32 sub_band_domain_mode; 80 WORD32 gain_delay_samples; 81 WORD32 parametric_drc_delay; 82 WORD32 eq_delay; 83 WORD32 audio_delay_samples; 84 WORD32 drc_set_counter; 85 WORD32 multiband_sel_drc_idx; 86 87 ia_sel_drc_struct sel_drc_array[SEL_DRC_COUNT]; 88 89 } ia_drc_params_struct; 90 91 #ifdef __cplusplus 92 } 93 #endif 94 #endif 95
