Coverage Report

Created: 2026-07-16 06:11

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/libxaac/decoder/ixheaacd_ps_bitdec.c
Line
Count
Source
1
/******************************************************************************
2
 *                                                                            *
3
 * Copyright (C) 2018 The Android Open Source Project
4
 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at:
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 *
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 * http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
15
 * limitations under the License.
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 *
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 *****************************************************************************
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 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
20
#include <string.h>
21
#include "ixheaacd_sbr_common.h"
22
#include "ixheaac_type_def.h"
23
24
#include "ixheaac_constants.h"
25
#include "ixheaac_basic_ops32.h"
26
#include "ixheaac_basic_ops16.h"
27
#include "ixheaac_basic_ops40.h"
28
#include "ixheaac_basic_ops.h"
29
30
#include "ixheaac_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
47
6.88k
static WORD32 ixheaacd_clamp(WORD32 i, WORD16 min, WORD16 max) {
48
6.88k
  WORD32 result = i;
49
50
6.88k
  if (i < min) {
51
364
    result = min;
52
6.51k
  } else {
53
6.51k
    if (i > max) {
54
145
      result = max;
55
145
    }
56
6.51k
  }
57
58
6.88k
  return result;
59
6.88k
}
60
61
26.9k
WORD16 ixheaacd_divideby2(WORD op) {
62
26.9k
  FLAG sign = (op < 0);
63
64
26.9k
  if (sign) {
65
22
    op = -(op);
66
22
  }
67
68
26.9k
  op = (op >> 1);
69
70
26.9k
  if (sign) {
71
22
    op = -op;
72
22
  }
73
74
26.9k
  return (WORD16)op;
75
26.9k
}
76
77
9.80k
WORD16 ixheaacd_divideby3(WORD op) {
78
9.80k
  WORD16 temp, ret;
79
9.80k
  FLAG sign = (op < 0);
80
81
9.80k
  if (sign) {
82
17
    op = -(op);
83
17
  }
84
85
9.80k
  temp = (WORD16)(op << 2);
86
87
9.80k
  temp = ixheaac_mult16_shl(temp, 0x2aab);
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89
9.80k
  ret = (temp >> 2);
90
91
9.80k
  if (sign) {
92
17
    ret = -(ret);
93
17
  }
94
95
9.80k
  return (WORD16)ret;
96
9.80k
}
97
98
13.5k
VOID ixheaacd_decode_ps_data(ia_ps_dec_struct *ptr_ps_dec, WORD32 frame_size) {
99
13.5k
  WORD e, i, temp;
100
13.5k
  WORD16 iid_mode = (WORD16)((ptr_ps_dec->iid_mode) ? 1 : 2);
101
13.5k
  WORD16 icc_mode = (WORD16)((ptr_ps_dec->icc_mode) ? 1 : 2);
102
13.5k
  WORD16 num_iid_levels =
103
13.5k
      (WORD16)(ptr_ps_dec->iid_quant ? NUM_IID_LEVELS_FINE : NUM_IID_LEVELS);
104
13.5k
  WORD32 max_num_columns;
105
106
13.5k
  if (frame_size == 960)
107
0
    max_num_columns = MAX_NUM_COLUMNS_960;
108
13.5k
  else
109
13.5k
    max_num_columns = MAX_NUM_COLUMNS;
110
111
13.5k
  if (!ptr_ps_dec->ps_data_present) {
112
11.3k
    ptr_ps_dec->num_env = 0;
113
11.3k
  }
114
115
15.9k
  for (e = 0; e < ptr_ps_dec->num_env; e++) {
116
2.35k
    WORD16 *p_iid_par_prev;
117
2.35k
    WORD16 *p_icc_par_prev;
118
119
2.35k
    if (e == 0) {
120
2.17k
      p_iid_par_prev = ptr_ps_dec->iid_par_prev;
121
2.17k
      p_icc_par_prev = ptr_ps_dec->icc_par_prev;
122
2.17k
    } else {
123
176
      p_iid_par_prev = ptr_ps_dec->iid_par_table[e - 1];
124
176
      p_icc_par_prev = ptr_ps_dec->icc_par_table[e - 1];
125
176
    }
126
127
2.35k
    if (ptr_ps_dec->enable_iid) {
128
478
      if (ptr_ps_dec->iid_dt[e]) {
129
5.00k
        for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
130
4.59k
          temp =
131
4.59k
              ixheaac_add16(*p_iid_par_prev, ptr_ps_dec->iid_par_table[e][i]);
132
4.59k
          ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
133
4.59k
              temp, ixheaac_negate16(num_iid_levels), num_iid_levels);
134
4.59k
          p_iid_par_prev += iid_mode;
135
4.59k
        }
136
413
      } else {
137
65
        ptr_ps_dec->iid_par_table[e][0] =
138
65
            ixheaacd_clamp(ptr_ps_dec->iid_par_table[e][0],
139
65
                           ixheaac_negate16(num_iid_levels), num_iid_levels);
140
650
        for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
141
585
          temp = ixheaac_add16(ptr_ps_dec->iid_par_table[e][i - 1],
142
585
                                ptr_ps_dec->iid_par_table[e][i]);
143
585
          ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
144
585
              temp, ixheaac_negate16(num_iid_levels), num_iid_levels);
145
585
        }
146
65
      }
147
1.87k
    } else {
148
1.87k
      memset(ptr_ps_dec->iid_par_table[e], 0,
149
1.87k
             sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->iid_mode]);
150
1.87k
    }
151
152
2.35k
    if (iid_mode == 2) {
153
2.26k
      for (i = (ixheaacd_num_bands[ptr_ps_dec->iid_mode] * iid_mode - 1);
154
45.2k
           i != 0; i--) {
155
42.9k
        ptr_ps_dec->iid_par_table[e][i] =
156
42.9k
            ptr_ps_dec->iid_par_table[e][ixheaac_shr32(i, 1)];
157
42.9k
      }
158
2.26k
    }
159
160
2.35k
    if (ptr_ps_dec->enable_icc) {
161
86
      if (ptr_ps_dec->icc_dt[e]) {
162
1.69k
        for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
163
1.61k
          temp =
164
1.61k
              ixheaac_add16(*p_icc_par_prev, ptr_ps_dec->icc_par_table[e][i]);
165
1.61k
          ptr_ps_dec->icc_par_table[e][i] =
166
1.61k
              ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
167
1.61k
          p_icc_par_prev += icc_mode;
168
1.61k
        }
169
83
      } else {
170
3
        ptr_ps_dec->icc_par_table[e][0] = ixheaacd_clamp(
171
3
            ptr_ps_dec->icc_par_table[e][0], 0, (WORD16)(NUM_ICC_LEVELS - 1));
172
30
        for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
173
27
          temp = ixheaac_add16(ptr_ps_dec->icc_par_table[e][i - 1],
174
27
                                ptr_ps_dec->icc_par_table[e][i]);
175
27
          ptr_ps_dec->icc_par_table[e][i] =
176
27
              ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
177
27
        }
178
3
      }
179
2.26k
    } else {
180
2.26k
      memset(ptr_ps_dec->icc_par_table[e], 0,
181
2.26k
             sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->icc_mode]);
182
2.26k
    }
183
184
2.35k
    if (icc_mode == 2) {
185
2.24k
      for (i = (ixheaacd_num_bands[ptr_ps_dec->icc_mode] * icc_mode - 1);
186
44.9k
           i != 0; i--) {
187
42.7k
        ptr_ps_dec->icc_par_table[e][i] =
188
42.7k
            ptr_ps_dec->icc_par_table[e][ixheaac_shr32(i, 1)];
189
42.7k
      }
190
2.24k
    }
191
2.35k
  }
192
193
13.5k
  if (ptr_ps_dec->num_env == 0) {
194
11.3k
    ptr_ps_dec->num_env = 1;
195
196
11.3k
    if (ptr_ps_dec->enable_iid) {
197
4.03k
      memcpy(ptr_ps_dec->iid_par_table[0], ptr_ps_dec->iid_par_prev,
198
4.03k
             sizeof(WORD16) * NUM_BANDS_FINE);
199
7.35k
    } else {
200
7.35k
      memset(ptr_ps_dec->iid_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
201
7.35k
    }
202
203
11.3k
    if (ptr_ps_dec->enable_icc) {
204
2.45k
      memcpy(ptr_ps_dec->icc_par_table[0], ptr_ps_dec->icc_par_prev,
205
2.45k
             sizeof(WORD16) * NUM_BANDS_FINE);
206
8.94k
    } else {
207
8.94k
      memset(ptr_ps_dec->icc_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
208
8.94k
    }
209
11.3k
  }
210
211
13.5k
  memcpy(ptr_ps_dec->iid_par_prev,
212
13.5k
         ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
213
13.5k
         sizeof(WORD16) * NUM_BANDS_FINE);
214
215
13.5k
  memcpy(ptr_ps_dec->icc_par_prev,
216
13.5k
         ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
217
13.5k
         sizeof(WORD16) * NUM_BANDS_FINE);
218
219
13.5k
  ptr_ps_dec->ps_data_present = 0;
220
221
13.5k
  if (ptr_ps_dec->frame_class == 0) {
222
13.0k
    WORD env_count;
223
13.0k
    WORD16 shift = 0;
224
225
13.0k
    switch (ptr_ps_dec->num_env) {
226
12.9k
      case 1:
227
12.9k
        shift = 0;
228
12.9k
        break;
229
51
      case 2:
230
51
        shift = 1;
231
51
        break;
232
3
      case 4:
233
3
        shift = 2;
234
3
        break;
235
13.0k
    }
236
13.0k
    ptr_ps_dec->border_position[0] = 0;
237
13.0k
    env_count = 0;
238
239
13.1k
    for (e = 1; e < ptr_ps_dec->num_env; e++) {
240
60
      env_count = add_d(env_count, max_num_columns);
241
60
      ptr_ps_dec->border_position[e] = (WORD16)(env_count >> shift);
242
60
    }
243
13.0k
    ptr_ps_dec->border_position[ptr_ps_dec->num_env] = max_num_columns;
244
13.0k
  } else {
245
520
    ptr_ps_dec->border_position[0] = 0;
246
247
520
    if (ptr_ps_dec->border_position[ptr_ps_dec->num_env] < max_num_columns) {
248
488
      ptr_ps_dec->num_env++;
249
488
      ptr_ps_dec->border_position[ptr_ps_dec->num_env] = max_num_columns;
250
251
488
      memcpy(ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
252
488
             ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 2],
253
488
             sizeof(WORD16) * NUM_BANDS_FINE);
254
255
488
      memcpy(ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
256
488
             ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 2],
257
488
             sizeof(WORD16) * NUM_BANDS_FINE);
258
488
    }
259
260
1.12k
    for (e = 1; e < ptr_ps_dec->num_env; e++) {
261
604
      WORD threshold;
262
604
      threshold = sub_d(max_num_columns, sub_d(ptr_ps_dec->num_env, e));
263
264
604
      if (ptr_ps_dec->border_position[e] > threshold) {
265
1
        ptr_ps_dec->border_position[e] = threshold;
266
603
      } else {
267
603
        threshold = add_d(ptr_ps_dec->border_position[e - 1], 1);
268
269
603
        if (ptr_ps_dec->border_position[e] < threshold) {
270
115
          ptr_ps_dec->border_position[e] = threshold;
271
115
        }
272
603
      }
273
604
    }
274
520
  }
275
276
27.8k
  for (e = 0; e < ptr_ps_dec->num_env; e++) {
277
14.2k
    if (ptr_ps_dec->iid_mode == 2)
278
2.26k
      ixheaacd_map_34_params_to_20(ptr_ps_dec->iid_par_table[e]);
279
280
14.2k
    if (ptr_ps_dec->icc_mode == 2)
281
181
      ixheaacd_map_34_params_to_20(ptr_ps_dec->icc_par_table[e]);
282
14.2k
  }
283
13.5k
}