1 /******************************************************************************
2 *
3 * Copyright (C) 2015 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 #include <stdio.h>
21 #include <stdlib.h>
22 #include <math.h>
23 #include <string.h>
24 #include "impd_type_def.h"
25 #include "impd_drc_uni_tables.h"
26 #include "impd_drc_uni_common.h"
27 #include "impd_drc_uni_interface.h"
28 #include "impd_drc_struct.h"
29 #include "impd_drc_uni_gain_dec.h"
30 #include "impd_drc_uni_loud_eq.h"
31 #include "impd_parametric_drc_dec.h"
32 #include "impd_drc_uni_multi_band.h"
33 #include "impd_drc_filter_bank.h"
34 #include "impd_drc_uni_process_audio.h"
35 #include "impd_drc_rom.h"
36
impd_parametric_drc_instance_reset(WORD32 instance_idx,ia_parametric_drc_instance_params_struct * pstr_parametric_drc_instance_params)37 WORD32 impd_parametric_drc_instance_reset(
38 WORD32 instance_idx, ia_parametric_drc_instance_params_struct*
39 pstr_parametric_drc_instance_params) {
40 WORD32 err = 0;
41
42 if (pstr_parametric_drc_instance_params->parametric_drc_type ==
43 PARAM_DRC_TYPE_FF) {
44 ia_parametric_drc_type_ff_params_struct*
45 pstr_parametric_ffwd_type_drc_params =
46 &(pstr_parametric_drc_instance_params
47 ->str_parametric_drc_type_ff_params);
48 err = impd_parametric_ffwd_type_drc_reset(
49 pstr_parametric_ffwd_type_drc_params);
50 if (err) return (err);
51
52 } else {
53 return (UNEXPECTED_ERROR);
54 }
55
56 return 0;
57 }
58
impd_add_drc_band_audio(ia_drc_instructions_struct * pstr_drc_instruction_arr,const WORD32 drc_instructions_index,ia_drc_params_struct * ia_drc_params_struct,ia_audio_band_buffer_struct * audio_band_buffer,FLOAT32 * audio_io_buf[])59 WORD32 impd_add_drc_band_audio(
60 ia_drc_instructions_struct* pstr_drc_instruction_arr,
61 const WORD32 drc_instructions_index,
62 ia_drc_params_struct* ia_drc_params_struct,
63 ia_audio_band_buffer_struct* audio_band_buffer, FLOAT32* audio_io_buf[]) {
64 WORD32 g, b, i, c;
65 FLOAT32 sum;
66 WORD32 signalIndex = 0;
67 FLOAT32** drcBandAudio;
68 FLOAT32** channel_audio;
69 ia_drc_instructions_struct* str_drc_instruction_str;
70
71 drcBandAudio = audio_band_buffer->non_interleaved_audio;
72 channel_audio = audio_io_buf;
73
74 if (drc_instructions_index >= 0) {
75 str_drc_instruction_str =
76 &(pstr_drc_instruction_arr[drc_instructions_index]);
77 } else {
78 return -1;
79 }
80
81 if (str_drc_instruction_str->drc_set_id > 0) {
82 for (c = 0; c < str_drc_instruction_str->audio_num_chan; c++)
83
84 {
85 g = str_drc_instruction_str->channel_group_of_ch[c];
86 if (g >= 0) {
87 for (i = 0; i < ia_drc_params_struct->drc_frame_size; i++) {
88 sum = 0.0f;
89 for (b = 0; b < str_drc_instruction_str->band_count_of_ch_group[g];
90 b++) {
91 sum += drcBandAudio[signalIndex + b][i];
92 }
93
94 channel_audio[c][i] = sum;
95 }
96 signalIndex += str_drc_instruction_str->band_count_of_ch_group[g];
97 } else {
98 signalIndex++;
99 }
100 }
101 } else {
102 for (c = 0; c < str_drc_instruction_str->audio_num_chan; c++)
103
104 {
105 for (i = 0; i < ia_drc_params_struct->drc_frame_size; i++) {
106 channel_audio[c][i] = drcBandAudio[c][i];
107 }
108 }
109 }
110 return (0);
111 }
112
removeTables(void)113 WORD32 removeTables(void) { return (0); }
114
impd_get_slope_code_tbl_by_value(void)115 const ia_slope_code_table_struct* impd_get_slope_code_tbl_by_value(void) {
116 return (&(slopeCodeTableEntryByValue[0]));
117 }
118
impd_decode_slope_idx(const WORD32 slopeCodeIndex)119 FLOAT32 impd_decode_slope_idx(const WORD32 slopeCodeIndex) {
120 const ia_slope_code_table_struct* slopeCodeTable =
121 impd_get_slope_code_tbl_by_value();
122 return slopeCodeTable[slopeCodeIndex].value;
123 }
124
impd_decode_slope_idx_magnitude(const WORD32 slopeCodeIndex)125 FLOAT32 impd_decode_slope_idx_magnitude(const WORD32 slopeCodeIndex) {
126 const ia_slope_code_table_struct* slopeCodeTable =
127 impd_get_slope_code_tbl_by_value();
128 return (FLOAT32)fabs((FLOAT64)slopeCodeTable[slopeCodeIndex].value);
129 }
130
impd_get_multi_band_drc_present(ia_drc_config * pstr_drc_config,WORD32 numSets[3],WORD32 multiBandDrcPresent[3])131 WORD32 impd_get_multi_band_drc_present(ia_drc_config* pstr_drc_config,
132 WORD32 numSets[3],
133 WORD32 multiBandDrcPresent[3]) {
134 WORD32 err = 0, k, m;
135 for (k = 0; k < pstr_drc_config->drc_instructions_uni_drc_count; k++) {
136 if ((pstr_drc_config->str_drc_instruction_str[k].downmix_id[0] ==
137 ID_FOR_BASE_LAYOUT) ||
138 (pstr_drc_config->str_drc_instruction_str[k].drc_apply_to_dwnmix ==
139 0)) {
140 numSets[0]++;
141 } else if (pstr_drc_config->str_drc_instruction_str[k].downmix_id[0] ==
142 ID_FOR_ANY_DOWNMIX) {
143 numSets[1]++;
144 } else {
145 numSets[2]++;
146 }
147 for (m = 0;
148 m < pstr_drc_config->str_drc_instruction_str[k].num_drc_ch_groups;
149 m++) {
150 if (pstr_drc_config->str_p_loc_drc_coefficients_uni_drc[0]
151 .gain_set_params[pstr_drc_config->str_drc_instruction_str
152 ->gain_set_index_for_channel_group[m]]
153 .band_count > 1) {
154 if ((pstr_drc_config->str_drc_instruction_str[k].downmix_id[0] ==
155 ID_FOR_BASE_LAYOUT) ||
156 (pstr_drc_config->str_drc_instruction_str[k].drc_apply_to_dwnmix ==
157 0)) {
158 multiBandDrcPresent[0] = 1;
159 } else if (pstr_drc_config->str_drc_instruction_str[k].downmix_id[0] ==
160 ID_FOR_ANY_DOWNMIX) {
161 multiBandDrcPresent[1] = 1;
162 } else {
163 multiBandDrcPresent[2] = 1;
164 }
165 }
166 }
167 }
168 return err;
169 }
170