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 #include "string.h"
21 #include "ixheaacd_sbr_common.h"
22 #include <ixheaacd_type_def.h>
23
24 #include "ixheaacd_constants.h"
25 #include <ixheaacd_basic_ops32.h>
26 #include <ixheaacd_basic_ops16.h>
27 #include <ixheaacd_basic_ops40.h>
28 #include "ixheaacd_basic_ops.h"
29
30 #include <ixheaacd_basic_op.h>
31 #include "ixheaacd_intrinsics.h"
32 #include "ixheaacd_bitbuffer.h"
33 #include "ixheaacd_sbrdecsettings.h"
34 #include "ixheaacd_sbr_scale.h"
35 #include "ixheaacd_lpp_tran.h"
36 #include "ixheaacd_env_extr_part.h"
37 #include <ixheaacd_sbr_rom.h>
38
39 #include "ixheaacd_hybrid.h"
40 #include "ixheaacd_ps_dec.h"
41
42 #include "ixheaacd_env_extr.h"
43 #include "ixheaacd_ps_bitdec.h"
44
45 const WORD16 ixheaacd_num_bands[3] = {10, 20, 34};
46
ixheaacd_clamp(WORD32 i,WORD16 min,WORD16 max)47 static WORD32 ixheaacd_clamp(WORD32 i, WORD16 min, WORD16 max) {
48 WORD32 result = i;
49
50 if (i < min) {
51 result = min;
52 } else {
53 if (i > max) {
54 result = max;
55 }
56 }
57
58 return result;
59 }
60
ixheaacd_divideby2(WORD op)61 WORD16 ixheaacd_divideby2(WORD op) {
62 FLAG sign = (op < 0);
63
64 if (sign) {
65 op = -(op);
66 }
67
68 op = (op >> 1);
69
70 if (sign) {
71 op = -op;
72 }
73
74 return (WORD16)op;
75 }
76
ixheaacd_divideby3(WORD op)77 WORD16 ixheaacd_divideby3(WORD op) {
78 WORD16 temp, ret;
79 FLAG sign = (op < 0);
80
81 if (sign) {
82 op = -(op);
83 }
84
85 temp = (WORD16)(op << 2);
86
87 temp = ixheaacd_mult16_shl(temp, 0x2aab);
88
89 ret = (temp >> 2);
90
91 if (sign) {
92 ret = -(ret);
93 }
94
95 return (WORD16)ret;
96 }
97
ixheaacd_decode_ps_data(ia_ps_dec_struct * ptr_ps_dec)98 VOID ixheaacd_decode_ps_data(ia_ps_dec_struct *ptr_ps_dec) {
99 WORD e, i, temp;
100 WORD16 iid_mode = (WORD16)((ptr_ps_dec->iid_mode) ? 1 : 2);
101 WORD16 icc_mode = (WORD16)((ptr_ps_dec->icc_mode) ? 1 : 2);
102 WORD16 num_iid_levels =
103 (WORD16)(ptr_ps_dec->iid_quant ? NUM_IID_LEVELS_FINE : NUM_IID_LEVELS);
104
105 if (!ptr_ps_dec->ps_data_present) {
106 ptr_ps_dec->num_env = 0;
107 }
108
109 for (e = 0; e < ptr_ps_dec->num_env; e++) {
110 WORD16 *p_iid_par_prev;
111 WORD16 *p_icc_par_prev;
112
113 if (e == 0) {
114 p_iid_par_prev = ptr_ps_dec->iid_par_prev;
115 p_icc_par_prev = ptr_ps_dec->icc_par_prev;
116 } else {
117 p_iid_par_prev = ptr_ps_dec->iid_par_table[e - 1];
118 p_icc_par_prev = ptr_ps_dec->icc_par_table[e - 1];
119 }
120
121 if (ptr_ps_dec->enable_iid) {
122 if (ptr_ps_dec->iid_dt[e]) {
123 for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
124 temp =
125 ixheaacd_add16(*p_iid_par_prev, ptr_ps_dec->iid_par_table[e][i]);
126 ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
127 temp, ixheaacd_negate16(num_iid_levels), num_iid_levels);
128 p_iid_par_prev += iid_mode;
129 }
130 } else {
131 ptr_ps_dec->iid_par_table[e][0] =
132 ixheaacd_clamp(ptr_ps_dec->iid_par_table[e][0],
133 ixheaacd_negate16(num_iid_levels), num_iid_levels);
134 for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
135 temp = ixheaacd_add16(ptr_ps_dec->iid_par_table[e][i - 1],
136 ptr_ps_dec->iid_par_table[e][i]);
137 ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
138 temp, ixheaacd_negate16(num_iid_levels), num_iid_levels);
139 }
140 }
141 } else {
142 memset(ptr_ps_dec->iid_par_table[e], 0,
143 sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->iid_mode]);
144 }
145
146 if (iid_mode == 2) {
147 for (i = (ixheaacd_num_bands[ptr_ps_dec->iid_mode] * iid_mode - 1);
148 i != 0; i--) {
149 ptr_ps_dec->iid_par_table[e][i] =
150 ptr_ps_dec->iid_par_table[e][ixheaacd_shr32(i, 1)];
151 }
152 }
153
154 if (ptr_ps_dec->enable_icc) {
155 if (ptr_ps_dec->icc_dt[e]) {
156 for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
157 temp =
158 ixheaacd_add16(*p_icc_par_prev, ptr_ps_dec->icc_par_table[e][i]);
159 ptr_ps_dec->icc_par_table[e][i] =
160 ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
161 p_icc_par_prev += icc_mode;
162 }
163 } else {
164 ptr_ps_dec->icc_par_table[e][0] = ixheaacd_clamp(
165 ptr_ps_dec->icc_par_table[e][0], 0, (WORD16)(NUM_ICC_LEVELS - 1));
166 for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
167 temp = ixheaacd_add16(ptr_ps_dec->icc_par_table[e][i - 1],
168 ptr_ps_dec->icc_par_table[e][i]);
169 ptr_ps_dec->icc_par_table[e][i] =
170 ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
171 }
172 }
173 } else {
174 memset(ptr_ps_dec->icc_par_table[e], 0,
175 sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->icc_mode]);
176 }
177
178 if (icc_mode == 2) {
179 for (i = (ixheaacd_num_bands[ptr_ps_dec->icc_mode] * icc_mode - 1);
180 i != 0; i--) {
181 ptr_ps_dec->icc_par_table[e][i] =
182 ptr_ps_dec->icc_par_table[e][ixheaacd_shr32(i, 1)];
183 }
184 }
185 }
186
187 if (ptr_ps_dec->num_env == 0) {
188 ptr_ps_dec->num_env = 1;
189
190 if (ptr_ps_dec->enable_iid) {
191 memcpy(ptr_ps_dec->iid_par_table[0], ptr_ps_dec->iid_par_prev,
192 sizeof(WORD16) * NUM_BANDS_FINE);
193 } else {
194 memset(ptr_ps_dec->iid_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
195 }
196
197 if (ptr_ps_dec->enable_icc) {
198 memcpy(ptr_ps_dec->icc_par_table[0], ptr_ps_dec->icc_par_prev,
199 sizeof(WORD16) * NUM_BANDS_FINE);
200 } else {
201 memset(ptr_ps_dec->icc_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
202 }
203 }
204
205 memcpy(ptr_ps_dec->iid_par_prev,
206 ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
207 sizeof(WORD16) * NUM_BANDS_FINE);
208
209 memcpy(ptr_ps_dec->icc_par_prev,
210 ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
211 sizeof(WORD16) * NUM_BANDS_FINE);
212
213 ptr_ps_dec->ps_data_present = 0;
214
215 if (ptr_ps_dec->frame_class == 0) {
216 WORD env_count;
217 WORD16 shift = 0;
218
219 switch (ptr_ps_dec->num_env) {
220 case 1:
221 shift = 0;
222 break;
223 case 2:
224 shift = 1;
225 break;
226 case 4:
227 shift = 2;
228 break;
229 }
230 ptr_ps_dec->border_position[0] = 0;
231 env_count = 0;
232
233 for (e = 1; e < ptr_ps_dec->num_env; e++) {
234 env_count = add_d(env_count, MAX_NUM_COLUMNS);
235 ptr_ps_dec->border_position[e] = (WORD16)(env_count >> shift);
236 }
237 ptr_ps_dec->border_position[ptr_ps_dec->num_env] = MAX_NUM_COLUMNS;
238 } else {
239 ptr_ps_dec->border_position[0] = 0;
240
241 if (ptr_ps_dec->border_position[ptr_ps_dec->num_env] < MAX_NUM_COLUMNS) {
242 ptr_ps_dec->num_env++;
243 add_d(ptr_ps_dec->num_env, 1);
244 ptr_ps_dec->border_position[ptr_ps_dec->num_env] = MAX_NUM_COLUMNS;
245
246 memcpy(ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
247 ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 2],
248 sizeof(WORD16) * NUM_BANDS_FINE);
249
250 memcpy(ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
251 ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 2],
252 sizeof(WORD16) * NUM_BANDS_FINE);
253 }
254
255 for (e = 1; e < ptr_ps_dec->num_env; e++) {
256 WORD threshold;
257 threshold = sub_d(MAX_NUM_COLUMNS, sub_d(ptr_ps_dec->num_env, e));
258
259 if (ptr_ps_dec->border_position[e] > threshold) {
260 ptr_ps_dec->border_position[e] = threshold;
261 } else {
262 threshold = add_d(ptr_ps_dec->border_position[e - 1], 1);
263
264 if (ptr_ps_dec->border_position[e] < threshold) {
265 ptr_ps_dec->border_position[e] = threshold;
266 }
267 }
268 }
269 }
270
271 for (e = 0; e < ptr_ps_dec->num_env; e++) {
272 if (ptr_ps_dec->iid_mode == 2)
273 ixheaacd_map_34_params_to_20(ptr_ps_dec->iid_par_table[e]);
274
275 if (ptr_ps_dec->icc_mode == 2)
276 ixheaacd_map_34_params_to_20(ptr_ps_dec->icc_par_table[e]);
277 }
278 }
279