Coverage Report

Created: 2025-12-10 06:52

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
 *
5
 * 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
10
 *
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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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 *****************************************************************************
18
 * 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
4.22k
static WORD32 ixheaacd_clamp(WORD32 i, WORD16 min, WORD16 max) {
48
4.22k
  WORD32 result = i;
49
50
4.22k
  if (i < min) {
51
192
    result = min;
52
4.02k
  } else {
53
4.02k
    if (i > max) {
54
98
      result = max;
55
98
    }
56
4.02k
  }
57
58
4.22k
  return result;
59
4.22k
}
60
61
41.9k
WORD16 ixheaacd_divideby2(WORD op) {
62
41.9k
  FLAG sign = (op < 0);
63
64
41.9k
  if (sign) {
65
86
    op = -(op);
66
86
  }
67
68
41.9k
  op = (op >> 1);
69
70
41.9k
  if (sign) {
71
86
    op = -op;
72
86
  }
73
74
41.9k
  return (WORD16)op;
75
41.9k
}
76
77
15.2k
WORD16 ixheaacd_divideby3(WORD op) {
78
15.2k
  WORD16 temp, ret;
79
15.2k
  FLAG sign = (op < 0);
80
81
15.2k
  if (sign) {
82
88
    op = -(op);
83
88
  }
84
85
15.2k
  temp = (WORD16)(op << 2);
86
87
15.2k
  temp = ixheaac_mult16_shl(temp, 0x2aab);
88
89
15.2k
  ret = (temp >> 2);
90
91
15.2k
  if (sign) {
92
88
    ret = -(ret);
93
88
  }
94
95
15.2k
  return (WORD16)ret;
96
15.2k
}
97
98
14.8k
VOID ixheaacd_decode_ps_data(ia_ps_dec_struct *ptr_ps_dec, WORD32 frame_size) {
99
14.8k
  WORD e, i, temp;
100
14.8k
  WORD16 iid_mode = (WORD16)((ptr_ps_dec->iid_mode) ? 1 : 2);
101
14.8k
  WORD16 icc_mode = (WORD16)((ptr_ps_dec->icc_mode) ? 1 : 2);
102
14.8k
  WORD16 num_iid_levels =
103
14.8k
      (WORD16)(ptr_ps_dec->iid_quant ? NUM_IID_LEVELS_FINE : NUM_IID_LEVELS);
104
14.8k
  WORD32 max_num_columns;
105
106
14.8k
  if (frame_size == 960)
107
0
    max_num_columns = MAX_NUM_COLUMNS_960;
108
14.8k
  else
109
14.8k
    max_num_columns = MAX_NUM_COLUMNS;
110
111
14.8k
  if (!ptr_ps_dec->ps_data_present) {
112
12.4k
    ptr_ps_dec->num_env = 0;
113
12.4k
  }
114
115
17.2k
  for (e = 0; e < ptr_ps_dec->num_env; e++) {
116
2.46k
    WORD16 *p_iid_par_prev;
117
2.46k
    WORD16 *p_icc_par_prev;
118
119
2.46k
    if (e == 0) {
120
2.29k
      p_iid_par_prev = ptr_ps_dec->iid_par_prev;
121
2.29k
      p_icc_par_prev = ptr_ps_dec->icc_par_prev;
122
2.29k
    } else {
123
167
      p_iid_par_prev = ptr_ps_dec->iid_par_table[e - 1];
124
167
      p_icc_par_prev = ptr_ps_dec->icc_par_table[e - 1];
125
167
    }
126
127
2.46k
    if (ptr_ps_dec->enable_iid) {
128
209
      if (ptr_ps_dec->iid_dt[e]) {
129
2.21k
        for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
130
2.02k
          temp =
131
2.02k
              ixheaac_add16(*p_iid_par_prev, ptr_ps_dec->iid_par_table[e][i]);
132
2.02k
          ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
133
2.02k
              temp, ixheaac_negate16(num_iid_levels), num_iid_levels);
134
2.02k
          p_iid_par_prev += iid_mode;
135
2.02k
        }
136
192
      } else {
137
17
        ptr_ps_dec->iid_par_table[e][0] =
138
17
            ixheaacd_clamp(ptr_ps_dec->iid_par_table[e][0],
139
17
                           ixheaac_negate16(num_iid_levels), num_iid_levels);
140
230
        for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->iid_mode]; i++) {
141
213
          temp = ixheaac_add16(ptr_ps_dec->iid_par_table[e][i - 1],
142
213
                                ptr_ps_dec->iid_par_table[e][i]);
143
213
          ptr_ps_dec->iid_par_table[e][i] = ixheaacd_clamp(
144
213
              temp, ixheaac_negate16(num_iid_levels), num_iid_levels);
145
213
        }
146
17
      }
147
2.25k
    } else {
148
2.25k
      memset(ptr_ps_dec->iid_par_table[e], 0,
149
2.25k
             sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->iid_mode]);
150
2.25k
    }
151
152
2.46k
    if (iid_mode == 2) {
153
2.33k
      for (i = (ixheaacd_num_bands[ptr_ps_dec->iid_mode] * iid_mode - 1);
154
46.6k
           i != 0; i--) {
155
44.3k
        ptr_ps_dec->iid_par_table[e][i] =
156
44.3k
            ptr_ps_dec->iid_par_table[e][ixheaac_shr32(i, 1)];
157
44.3k
      }
158
2.33k
    }
159
160
2.46k
    if (ptr_ps_dec->enable_icc) {
161
114
      if (ptr_ps_dec->icc_dt[e]) {
162
1.76k
        for (i = 0; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
163
1.68k
          temp =
164
1.68k
              ixheaac_add16(*p_icc_par_prev, ptr_ps_dec->icc_par_table[e][i]);
165
1.68k
          ptr_ps_dec->icc_par_table[e][i] =
166
1.68k
              ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
167
1.68k
          p_icc_par_prev += icc_mode;
168
1.68k
        }
169
85
      } else {
170
29
        ptr_ps_dec->icc_par_table[e][0] = ixheaacd_clamp(
171
29
            ptr_ps_dec->icc_par_table[e][0], 0, (WORD16)(NUM_ICC_LEVELS - 1));
172
290
        for (i = 1; i < ixheaacd_num_bands[ptr_ps_dec->icc_mode]; i++) {
173
261
          temp = ixheaac_add16(ptr_ps_dec->icc_par_table[e][i - 1],
174
261
                                ptr_ps_dec->icc_par_table[e][i]);
175
261
          ptr_ps_dec->icc_par_table[e][i] =
176
261
              ixheaacd_clamp(temp, 0, (WORD16)(NUM_ICC_LEVELS - 1));
177
261
        }
178
29
      }
179
2.34k
    } else {
180
2.34k
      memset(ptr_ps_dec->icc_par_table[e], 0,
181
2.34k
             sizeof(WORD16) * ixheaacd_num_bands[ptr_ps_dec->icc_mode]);
182
2.34k
    }
183
184
2.46k
    if (icc_mode == 2) {
185
2.24k
      for (i = (ixheaacd_num_bands[ptr_ps_dec->icc_mode] * icc_mode - 1);
186
44.8k
           i != 0; i--) {
187
42.5k
        ptr_ps_dec->icc_par_table[e][i] =
188
42.5k
            ptr_ps_dec->icc_par_table[e][ixheaac_shr32(i, 1)];
189
42.5k
      }
190
2.24k
    }
191
2.46k
  }
192
193
14.8k
  if (ptr_ps_dec->num_env == 0) {
194
12.5k
    ptr_ps_dec->num_env = 1;
195
196
12.5k
    if (ptr_ps_dec->enable_iid) {
197
4.48k
      memcpy(ptr_ps_dec->iid_par_table[0], ptr_ps_dec->iid_par_prev,
198
4.48k
             sizeof(WORD16) * NUM_BANDS_FINE);
199
8.04k
    } else {
200
8.04k
      memset(ptr_ps_dec->iid_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
201
8.04k
    }
202
203
12.5k
    if (ptr_ps_dec->enable_icc) {
204
3.63k
      memcpy(ptr_ps_dec->icc_par_table[0], ptr_ps_dec->icc_par_prev,
205
3.63k
             sizeof(WORD16) * NUM_BANDS_FINE);
206
8.89k
    } else {
207
8.89k
      memset(ptr_ps_dec->icc_par_table[0], 0, sizeof(WORD16) * NUM_BANDS_FINE);
208
8.89k
    }
209
12.5k
  }
210
211
14.8k
  memcpy(ptr_ps_dec->iid_par_prev,
212
14.8k
         ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
213
14.8k
         sizeof(WORD16) * NUM_BANDS_FINE);
214
215
14.8k
  memcpy(ptr_ps_dec->icc_par_prev,
216
14.8k
         ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
217
14.8k
         sizeof(WORD16) * NUM_BANDS_FINE);
218
219
14.8k
  ptr_ps_dec->ps_data_present = 0;
220
221
14.8k
  if (ptr_ps_dec->frame_class == 0) {
222
14.2k
    WORD env_count;
223
14.2k
    WORD16 shift = 0;
224
225
14.2k
    switch (ptr_ps_dec->num_env) {
226
14.2k
      case 1:
227
14.2k
        shift = 0;
228
14.2k
        break;
229
17
      case 2:
230
17
        shift = 1;
231
17
        break;
232
4
      case 4:
233
4
        shift = 2;
234
4
        break;
235
14.2k
    }
236
14.2k
    ptr_ps_dec->border_position[0] = 0;
237
14.2k
    env_count = 0;
238
239
14.3k
    for (e = 1; e < ptr_ps_dec->num_env; e++) {
240
29
      env_count = add_d(env_count, max_num_columns);
241
29
      ptr_ps_dec->border_position[e] = (WORD16)(env_count >> shift);
242
29
    }
243
14.2k
    ptr_ps_dec->border_position[ptr_ps_dec->num_env] = max_num_columns;
244
14.2k
  } else {
245
543
    ptr_ps_dec->border_position[0] = 0;
246
247
543
    if (ptr_ps_dec->border_position[ptr_ps_dec->num_env] < max_num_columns) {
248
519
      ptr_ps_dec->num_env++;
249
519
      ptr_ps_dec->border_position[ptr_ps_dec->num_env] = max_num_columns;
250
251
519
      memcpy(ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 1],
252
519
             ptr_ps_dec->iid_par_table[ptr_ps_dec->num_env - 2],
253
519
             sizeof(WORD16) * NUM_BANDS_FINE);
254
255
519
      memcpy(ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 1],
256
519
             ptr_ps_dec->icc_par_table[ptr_ps_dec->num_env - 2],
257
519
             sizeof(WORD16) * NUM_BANDS_FINE);
258
519
    }
259
260
1.20k
    for (e = 1; e < ptr_ps_dec->num_env; e++) {
261
657
      WORD threshold;
262
657
      threshold = sub_d(max_num_columns, sub_d(ptr_ps_dec->num_env, e));
263
264
657
      if (ptr_ps_dec->border_position[e] > threshold) {
265
4
        ptr_ps_dec->border_position[e] = threshold;
266
653
      } else {
267
653
        threshold = add_d(ptr_ps_dec->border_position[e - 1], 1);
268
269
653
        if (ptr_ps_dec->border_position[e] < threshold) {
270
137
          ptr_ps_dec->border_position[e] = threshold;
271
137
        }
272
653
      }
273
657
    }
274
543
  }
275
276
30.3k
  for (e = 0; e < ptr_ps_dec->num_env; e++) {
277
15.5k
    if (ptr_ps_dec->iid_mode == 2)
278
3.72k
      ixheaacd_map_34_params_to_20(ptr_ps_dec->iid_par_table[e]);
279
280
15.5k
    if (ptr_ps_dec->icc_mode == 2)
281
90
      ixheaacd_map_34_params_to_20(ptr_ps_dec->icc_par_table[e]);
282
15.5k
  }
283
14.8k
}