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 <stdio.h>
21 #include <string.h>
22 #include <math.h>
23 #include "impd_type_def.h"
24 #include "impd_drc_bitbuffer.h"
25 #include "impd_drc_extr_delta_coded_info.h"
26 #include "impd_drc_common.h"
27 #include "impd_drc_struct.h"
28 #include "impd_drc_parser.h"
29 #include "impd_drc_filter_bank.h"
30 #include "impd_drc_rom.h"
31 WORD32 impd_parse_loud_eq_instructions(
32 ia_bit_buf_struct* it_bit_buff,
33 ia_loud_eq_instructions_struct* loud_eq_instructions);
34
35 WORD32 impd_parse_eq_coefficients(ia_bit_buf_struct* it_bit_buff,
36 ia_eq_coeff_struct* str_eq_coeff);
37
38 WORD32 impd_parse_eq_instructions(
39 ia_bit_buf_struct* it_bit_buff, ia_drc_config* drc_config,
40 ia_eq_instructions_struct* str_eq_instructions);
impd_dec_initial_gain(ia_bit_buf_struct * it_bit_buff,const WORD32 gain_coding_profile,FLOAT32 * initial_gain)41 WORD32 impd_dec_initial_gain(ia_bit_buf_struct* it_bit_buff,
42 const WORD32 gain_coding_profile,
43 FLOAT32* initial_gain) {
44 WORD32 sign, magn, bit_2_extract;
45 switch (gain_coding_profile) {
46 case GAIN_CODING_PROFILE_REGULAR:
47 sign = impd_read_bits_buf(it_bit_buff, 1);
48 if (it_bit_buff->error) return it_bit_buff->error;
49 magn = impd_read_bits_buf(it_bit_buff, 8);
50 if (it_bit_buff->error) return it_bit_buff->error;
51 *initial_gain = magn * 0.125f;
52 if (sign) *initial_gain = -*initial_gain;
53 break;
54 case GAIN_CODING_PROFILE_FADING:
55 case GAIN_CODING_PROFILE_CLIPPING:
56 bit_2_extract =
57 (gain_coding_profile == GAIN_CODING_PROFILE_FADING) ? 10 : 8;
58 sign = impd_read_bits_buf(it_bit_buff, 1);
59 if (it_bit_buff->error) return it_bit_buff->error;
60 if (sign == 0)
61 *initial_gain = 0.0f;
62 else {
63 magn = impd_read_bits_buf(it_bit_buff, bit_2_extract);
64 if (it_bit_buff->error) return it_bit_buff->error;
65 *initial_gain = -(magn + 1) * 0.125f;
66 }
67 break;
68
69 case GAIN_CODING_PROFILE_CONSTANT:
70 break;
71 default:
72 return (UNEXPECTED_ERROR);
73 }
74 return (0);
75 }
76
impd_dec_gains(ia_bit_buf_struct * it_bit_buff,WORD32 no_nodes,WORD32 gain_coding_profile,ia_node_struct * str_node)77 WORD32 impd_dec_gains(ia_bit_buf_struct* it_bit_buff, WORD32 no_nodes,
78 WORD32 gain_coding_profile, ia_node_struct* str_node) {
79 WORD32 err = 0, k, e, m;
80 WORD32 bit;
81 WORD32 num_bits_read;
82 WORD32 code;
83 WORD32 code_found;
84 FLOAT32 drc_gain_delta = 0;
85 const ia_delta_gain_code_table_struct* ptr_delta_gain_code_table;
86 WORD32 no_delta_gain_entries;
87
88 err = impd_dec_initial_gain(it_bit_buff, gain_coding_profile,
89 &(str_node[0].loc_db_gain));
90 if (err) return (err);
91
92 impd_get_delta_gain_code_tbl(gain_coding_profile, &ptr_delta_gain_code_table,
93 &no_delta_gain_entries);
94 for (k = 1; k < no_nodes; k++) {
95 num_bits_read = 0;
96 code = 0;
97 code_found = 0;
98 e = 0;
99 while ((e < no_delta_gain_entries) && (!code_found)) {
100 for (m = 0; m < ptr_delta_gain_code_table[e].size - num_bits_read; m++) {
101 bit = impd_read_bits_buf(it_bit_buff, 1);
102 if (it_bit_buff->error) return it_bit_buff->error;
103 code = (code << 1) + bit;
104 num_bits_read++;
105 }
106 while (num_bits_read == ptr_delta_gain_code_table[e].size) {
107 if (code == ptr_delta_gain_code_table[e].code) {
108 drc_gain_delta = ptr_delta_gain_code_table[e].value;
109 code_found = 1;
110 break;
111 }
112 e++;
113 }
114 }
115 if (code_found == 0) {
116 return (UNEXPECTED_ERROR);
117 }
118 str_node[k].loc_db_gain = str_node[k - 1].loc_db_gain + drc_gain_delta;
119 }
120 return (0);
121 }
122
impd_dec_slopes(ia_bit_buf_struct * it_bit_buff,WORD32 * no_nodes,WORD32 gain_interpolation_type,ia_node_struct * str_node)123 WORD32 impd_dec_slopes(ia_bit_buf_struct* it_bit_buff, WORD32* no_nodes,
124 WORD32 gain_interpolation_type,
125 ia_node_struct* str_node) {
126 WORD32 k, e, bit;
127 WORD32 code;
128 WORD32 code_found;
129 FLOAT32 slope_value = 0;
130 bool end_marker = 0;
131 WORD32 num_bits_read;
132 const ia_slope_code_table_struct* ptr_slope_code_table;
133 WORD32 no_slope_code_entries;
134
135 ptr_slope_code_table = &(slope_code_tbl_entries_by_size[0]);
136 no_slope_code_entries = NUM_SLOPE_TBL_ENTRIES;
137
138 k = 0;
139 while (end_marker != 1) {
140 k++;
141 end_marker = impd_read_bits_buf(it_bit_buff, 1);
142 if (it_bit_buff->error) return it_bit_buff->error;
143 }
144 if (k > NODE_COUNT_MAX) return UNEXPECTED_ERROR;
145 *no_nodes = k;
146
147 if (gain_interpolation_type == GAIN_INTERPOLATION_TYPE_SPLINE) {
148 for (k = 0; k < *no_nodes; k++) {
149 num_bits_read = 0;
150 code = 0;
151 code_found = 0;
152 e = 0;
153 while ((e < no_slope_code_entries) && (!code_found)) {
154 while (num_bits_read < ptr_slope_code_table[e].size) {
155 bit = impd_read_bits_buf(it_bit_buff, 1);
156 if (it_bit_buff->error) return it_bit_buff->error;
157 code = (code << 1) + bit;
158 num_bits_read++;
159 }
160 while (num_bits_read == ptr_slope_code_table[e].size) {
161 if (code == ptr_slope_code_table[e].code) {
162 slope_value = ptr_slope_code_table[e].value;
163 code_found = 1;
164 break;
165 }
166 e++;
167 if (e >= no_slope_code_entries) return UNEXPECTED_ERROR;
168 }
169 }
170 str_node[k].slope = slope_value;
171 }
172 } else {
173 for (k = 0; k < *no_nodes; k++) {
174 str_node[k].slope = 0.0f;
175 }
176 }
177 return (0);
178 }
179
impd_dec_times(ia_bit_buf_struct * it_bit_buff,ia_tables_struct * str_tables,WORD32 num_nodes,WORD32 delta_tmin,WORD32 drc_frame_size,WORD32 full_frame,WORD32 time_offset,ia_node_struct * str_node)180 WORD32 impd_dec_times(ia_bit_buf_struct* it_bit_buff,
181 ia_tables_struct* str_tables, WORD32 num_nodes,
182 WORD32 delta_tmin, WORD32 drc_frame_size,
183 WORD32 full_frame, WORD32 time_offset,
184 ia_node_struct* str_node) {
185 WORD32 k, e, m;
186 WORD32 bit;
187 WORD32 num_bits_read;
188 WORD32 code;
189 WORD32 code_found = 0;
190 WORD32 time_delta = 0;
191 WORD32 time_offs = time_offset;
192 ia_delta_time_code_table_entry_struct* delta_time_code_table =
193 str_tables->delta_time_code_table;
194 bool frame_end_flag;
195 WORD32 node_time_tmp;
196 bool node_res_flag;
197 WORD32 exit_cnt;
198 if (full_frame == 0) {
199 frame_end_flag = impd_read_bits_buf(it_bit_buff, 1);
200 if (it_bit_buff->error) return it_bit_buff->error;
201 } else {
202 frame_end_flag = 1;
203 }
204
205 if (frame_end_flag == 1) {
206 node_res_flag = 0;
207 for (k = 0; k < num_nodes - 1; k++) {
208 num_bits_read = 0;
209 code = 0;
210 code_found = 0;
211 exit_cnt = 0;
212 e = 1;
213 while ((e < N_DELTA_TIME_CODE_TABLE_ENTRIES_MAX) && (!code_found)) {
214 exit_cnt++;
215 if (exit_cnt > 100000) {
216 return -1;
217 }
218 for (m = 0; m < delta_time_code_table[e].size - num_bits_read; m++) {
219 bit = impd_read_bits_buf(it_bit_buff, 1);
220 if (it_bit_buff->error) return it_bit_buff->error;
221 code = (code << 1) + bit;
222 num_bits_read++;
223 }
224 while (num_bits_read == delta_time_code_table[e].size) {
225 if (code == delta_time_code_table[e].code) {
226 time_delta = delta_time_code_table[e].value;
227 code_found = 1;
228 break;
229 }
230 e++;
231 }
232 }
233 node_time_tmp = time_offs + time_delta * delta_tmin;
234 if (node_time_tmp >= (2 * AUDIO_CODEC_FRAME_SIZE_MAX - drc_frame_size))
235 return UNEXPECTED_ERROR;
236 if (node_time_tmp > drc_frame_size + time_offset) {
237 if (node_res_flag == 0) {
238 str_node[k].time = drc_frame_size + time_offset;
239 node_res_flag = 1;
240 }
241 str_node[k + 1].time = node_time_tmp;
242 } else {
243 str_node[k].time = node_time_tmp;
244 }
245 time_offs = node_time_tmp;
246 }
247 if (node_res_flag == 0) {
248 str_node[k].time = drc_frame_size + time_offset;
249 }
250 } else {
251 for (k = 0; k < num_nodes; k++) {
252 num_bits_read = 0;
253 code = 0;
254 code_found = 0;
255 e = 1;
256 exit_cnt = 0;
257 while ((e < N_DELTA_TIME_CODE_TABLE_ENTRIES_MAX) && (!code_found)) {
258 exit_cnt++;
259 if (exit_cnt > 100000) {
260 return (BITSTREAM_ERROR);
261 }
262 for (m = 0; m < delta_time_code_table[e].size - num_bits_read; m++) {
263 bit = impd_read_bits_buf(it_bit_buff, 1);
264 if (it_bit_buff->error) return it_bit_buff->error;
265 code = (code << 1) + bit;
266 num_bits_read++;
267 }
268 while (num_bits_read == delta_time_code_table[e].size) {
269 if (code == delta_time_code_table[e].code) {
270 time_delta = delta_time_code_table[e].value;
271 code_found = 1;
272 break;
273 }
274 e++;
275 }
276 }
277 time_offs += time_delta * delta_tmin;
278 if (time_offs >= (2 * AUDIO_CODEC_FRAME_SIZE_MAX - drc_frame_size))
279 return UNEXPECTED_ERROR;
280 str_node[k].time = time_offs;
281 }
282 }
283 return (0);
284 }
285
impd_drc_uni_gain_read(ia_bit_buf_struct * it_bit_buff,ia_drc_bits_dec_struct * pstr_drc_uni_bs_dec,ia_drc_config * drc_config,ia_drc_gain_struct * pstr_uni_drc_gain)286 WORD32 impd_drc_uni_gain_read(ia_bit_buf_struct* it_bit_buff,
287 ia_drc_bits_dec_struct* pstr_drc_uni_bs_dec,
288 ia_drc_config* drc_config,
289 ia_drc_gain_struct* pstr_uni_drc_gain) {
290 WORD32 err = 0;
291 WORD32 seq;
292 static WORD32 pkt_loss_frame_cnt = 0;
293 ia_spline_nodes_struct* str_spline_nodes = {0};
294
295 {
296 WORD32 gain_sequence_count =
297 drc_config->str_p_loc_drc_coefficients_uni_drc[0].gain_sequence_count;
298
299 for (seq = 0; seq < gain_sequence_count; seq++) {
300 WORD32 index = drc_config->str_p_loc_drc_coefficients_uni_drc[0]
301 .gain_set_params_index_for_gain_sequence[seq];
302 ia_gain_set_params_struct str_gain_set_params = {0};
303 ia_gain_set_params_struct* gain_set_params = &str_gain_set_params;
304
305 if (index != -1) {
306 gain_set_params = &(drc_config->str_p_loc_drc_coefficients_uni_drc
307 ->gain_set_params[index]);
308 }
309 if (gain_set_params->gain_coding_profile ==
310 GAIN_CODING_PROFILE_CONSTANT) {
311 str_spline_nodes =
312 &(pstr_uni_drc_gain->drc_gain_sequence[seq].str_spline_nodes[0]);
313 str_spline_nodes->num_nodes = 1;
314 str_spline_nodes->str_node[0].slope = 0.0;
315 str_spline_nodes->str_node[0].time =
316 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size - 1;
317 str_spline_nodes->str_node[0].loc_db_gain = 0.0f;
318 } else {
319 err = impd_parse_drc_gain_sequence(
320 it_bit_buff, pstr_drc_uni_bs_dec, gain_set_params,
321 &(pstr_uni_drc_gain->drc_gain_sequence[seq]));
322 if (err) return (err);
323 }
324 }
325 }
326
327 if (it_bit_buff->ptr_bit_buf_base == NULL) {
328 pkt_loss_frame_cnt++;
329
330 if (pkt_loss_frame_cnt *
331 (FLOAT32)pstr_drc_uni_bs_dec->ia_drc_params_struct.drc_frame_size /
332 drc_config->sampling_rate >
333 MAXPACKETLOSSTIME) {
334 drc_config->apply_drc = 0;
335 }
336 } else {
337 pstr_uni_drc_gain->uni_drc_gain_ext_flag =
338 impd_read_bits_buf(it_bit_buff, 1);
339 if (it_bit_buff->error) return it_bit_buff->error;
340 if (pstr_uni_drc_gain->uni_drc_gain_ext_flag == 1) {
341 err = impd_parse_uni_drc_gain_ext(it_bit_buff,
342 &(pstr_uni_drc_gain->uni_drc_gain_ext));
343 if (err) return (err);
344 }
345 pkt_loss_frame_cnt = 0;
346 drc_config->apply_drc = 1;
347 }
348
349 return (0);
350 }
351
impd_parse_uni_drc_gain_ext(ia_bit_buf_struct * it_bit_buff,ia_uni_drc_gain_ext_struct * uni_drc_gain_ext)352 WORD32 impd_parse_uni_drc_gain_ext(
353 ia_bit_buf_struct* it_bit_buff,
354 ia_uni_drc_gain_ext_struct* uni_drc_gain_ext) {
355 WORD32 k;
356 WORD32 bit_size_len, ext_size_bits, bit_size;
357
358 k = 0;
359 uni_drc_gain_ext->uni_drc_gain_ext_type[k] =
360 impd_read_bits_buf(it_bit_buff, 4);
361 if (it_bit_buff->error) return it_bit_buff->error;
362 while (uni_drc_gain_ext->uni_drc_gain_ext_type[k] != UNIDRCGAINEXT_TERM) {
363 if (k >= (EXT_COUNT_MAX - 1)) return UNEXPECTED_ERROR;
364 bit_size_len = impd_read_bits_buf(it_bit_buff, 3);
365 if (it_bit_buff->error) return it_bit_buff->error;
366 ext_size_bits = bit_size_len + 4;
367
368 bit_size = impd_read_bits_buf(it_bit_buff, ext_size_bits);
369 if (it_bit_buff->error) return it_bit_buff->error;
370 uni_drc_gain_ext->ext_bit_size[k] = bit_size + 1;
371
372 impd_skip_bits_buf(it_bit_buff, uni_drc_gain_ext->ext_bit_size[k]);
373 if (it_bit_buff->error) return it_bit_buff->error;
374 k++;
375 uni_drc_gain_ext->uni_drc_gain_ext_type[k] =
376 impd_read_bits_buf(it_bit_buff, 4);
377 if (it_bit_buff->error) return it_bit_buff->error;
378 }
379
380 return (0);
381 }
382
impd_parse_spline_nodes(ia_bit_buf_struct * it_bit_buff,ia_drc_bits_dec_struct * pstr_drc_uni_bs_dec,ia_gain_set_params_struct * gain_set_params,ia_spline_nodes_struct * str_spline_nodes)383 WORD32 impd_parse_spline_nodes(ia_bit_buf_struct* it_bit_buff,
384 ia_drc_bits_dec_struct* pstr_drc_uni_bs_dec,
385 ia_gain_set_params_struct* gain_set_params,
386 ia_spline_nodes_struct* str_spline_nodes) {
387 WORD32 err = 0;
388 WORD32 time_offset;
389 if (gain_set_params->time_alignment == 0) {
390 time_offset = -1;
391 } else {
392 if (gain_set_params->time_delt_min_flag) {
393 time_offset = -gain_set_params->time_delt_min_val +
394 (gain_set_params->time_delt_min_val - 1) / 2;
395 } else {
396 time_offset =
397 -pstr_drc_uni_bs_dec->ia_drc_params_struct.delta_tmin_default +
398 (pstr_drc_uni_bs_dec->ia_drc_params_struct.delta_tmin_default - 1) /
399 2;
400 }
401 }
402
403 if (it_bit_buff->ptr_bit_buf_base == NULL) {
404 if ((str_spline_nodes->num_nodes < 1) ||
405 (str_spline_nodes->num_nodes > NODE_COUNT_MAX))
406 return UNEXPECTED_ERROR;
407 FLOAT32 prev_db_gain =
408 str_spline_nodes->str_node[str_spline_nodes->num_nodes - 1].loc_db_gain;
409 str_spline_nodes->drc_gain_coding_mode = 0;
410
411 str_spline_nodes->num_nodes = 1;
412
413 if (prev_db_gain < 0) {
414 str_spline_nodes->str_node[0].loc_db_gain = prev_db_gain;
415 } else {
416 str_spline_nodes->str_node[0].loc_db_gain = 0.f;
417 }
418
419 str_spline_nodes->str_node[0].slope = 0.0;
420 str_spline_nodes->str_node[0].time =
421 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size +
422 time_offset;
423 } else {
424 str_spline_nodes->drc_gain_coding_mode = impd_read_bits_buf(it_bit_buff, 1);
425 if (it_bit_buff->error == PROC_COMPLETE) {
426 if ((str_spline_nodes->num_nodes < 1) ||
427 (str_spline_nodes->num_nodes > NODE_COUNT_MAX))
428 return UNEXPECTED_ERROR;
429 str_spline_nodes->drc_gain_coding_mode = 0;
430 str_spline_nodes->str_node[0].slope = 0.0;
431 str_spline_nodes->str_node[0].time =
432 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size +
433 time_offset;
434 str_spline_nodes->str_node[0].loc_db_gain =
435 str_spline_nodes->str_node[str_spline_nodes->num_nodes - 1]
436 .loc_db_gain;
437 str_spline_nodes->num_nodes = 1;
438 } else {
439 if (it_bit_buff->error) return (it_bit_buff->error);
440 }
441 if (str_spline_nodes->drc_gain_coding_mode == 0) {
442 str_spline_nodes->num_nodes = 1;
443
444 err = impd_dec_initial_gain(it_bit_buff,
445 gain_set_params->gain_coding_profile,
446 &(str_spline_nodes->str_node[0].loc_db_gain));
447 if (err) return (err);
448
449 str_spline_nodes->str_node[0].slope = 0.0;
450 str_spline_nodes->str_node[0].time =
451 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size +
452 time_offset;
453 } else {
454 err = impd_dec_slopes(it_bit_buff, &str_spline_nodes->num_nodes,
455 gain_set_params->gain_interpolation_type,
456 str_spline_nodes->str_node);
457 if (err) return (err);
458 if (gain_set_params->time_delt_min_flag) {
459 err = impd_dec_times(
460 it_bit_buff, &gain_set_params->str_tables,
461 str_spline_nodes->num_nodes, gain_set_params->time_delt_min_val,
462 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size,
463 gain_set_params->full_frame, time_offset,
464 str_spline_nodes->str_node);
465 if (err) return (err);
466 err = impd_dec_gains(it_bit_buff, str_spline_nodes->num_nodes,
467 gain_set_params->gain_coding_profile,
468 str_spline_nodes->str_node);
469 if (err) return (err);
470 } else {
471 err = impd_dec_times(
472 it_bit_buff, &pstr_drc_uni_bs_dec->tables_default,
473 str_spline_nodes->num_nodes,
474 (pstr_drc_uni_bs_dec->ia_drc_params_struct).delta_tmin_default,
475 (pstr_drc_uni_bs_dec->ia_drc_params_struct).drc_frame_size,
476 gain_set_params->full_frame, time_offset,
477 str_spline_nodes->str_node);
478 if (err) return (err);
479 err = impd_dec_gains(it_bit_buff, str_spline_nodes->num_nodes,
480 gain_set_params->gain_coding_profile,
481 str_spline_nodes->str_node);
482 if (err) return (err);
483 }
484 }
485 }
486 return (0);
487 }
488
impd_parse_drc_gain_sequence(ia_bit_buf_struct * it_bit_buff,ia_drc_bits_dec_struct * pstr_drc_uni_bs_dec,ia_gain_set_params_struct * gain_set_params,ia_drc_gain_sequence_struct * drc_gain_sequence)489 WORD32 impd_parse_drc_gain_sequence(
490 ia_bit_buf_struct* it_bit_buff, ia_drc_bits_dec_struct* pstr_drc_uni_bs_dec,
491 ia_gain_set_params_struct* gain_set_params,
492 ia_drc_gain_sequence_struct* drc_gain_sequence) {
493 WORD32 err = 0, i;
494 WORD32 prev_frame_time_buf[NODE_COUNT_MAX],
495 cur_frame_time_buf[NODE_COUNT_MAX];
496 WORD32 num_nodes_node_reservoir, num_nodes_cur, k, m;
497
498 if (((pstr_drc_uni_bs_dec->ia_drc_params_struct).delay_mode ==
499 DELAY_MODE_LOW_DELAY) &&
500 (gain_set_params->full_frame == 0)) {
501 return (PARAM_ERROR);
502 }
503 i = 0;
504 {
505 err = impd_parse_spline_nodes(it_bit_buff, pstr_drc_uni_bs_dec,
506 gain_set_params,
507 &(drc_gain_sequence->str_spline_nodes[i]));
508 if (err) return (err);
509
510 num_nodes_node_reservoir = 0;
511 num_nodes_cur = 0;
512 for (k = 0; k < drc_gain_sequence->str_spline_nodes[i].num_nodes; k++) {
513 if (drc_gain_sequence->str_spline_nodes[i].str_node[k].time >=
514 pstr_drc_uni_bs_dec->ia_drc_params_struct.drc_frame_size) {
515 prev_frame_time_buf[num_nodes_node_reservoir] =
516 drc_gain_sequence->str_spline_nodes[i].str_node[k].time;
517 num_nodes_node_reservoir++;
518 } else {
519 cur_frame_time_buf[num_nodes_cur] =
520 drc_gain_sequence->str_spline_nodes[i].str_node[k].time;
521 num_nodes_cur++;
522 }
523 }
524 for (k = 0; k < num_nodes_node_reservoir; k++) {
525 WORD32 tmp = prev_frame_time_buf[k] -
526 2 * pstr_drc_uni_bs_dec->ia_drc_params_struct.drc_frame_size;
527 if (tmp >= (2 * AUDIO_CODEC_FRAME_SIZE_MAX -
528 pstr_drc_uni_bs_dec->ia_drc_params_struct.drc_frame_size))
529 return UNEXPECTED_ERROR;
530 drc_gain_sequence->str_spline_nodes[i].str_node[k].time = tmp;
531 }
532 for (m = 0; m < num_nodes_cur; m++, k++) {
533 drc_gain_sequence->str_spline_nodes[i].str_node[k].time =
534 cur_frame_time_buf[m];
535 }
536 }
537 return (0);
538 }
impd_parse_drc_ext_v1(ia_bit_buf_struct * it_bit_buff,ia_drc_params_bs_dec_struct * ia_drc_params_struct,ia_drc_config * drc_config,ia_drc_config_ext * str_drc_config_ext)539 WORD32 impd_parse_drc_ext_v1(ia_bit_buf_struct* it_bit_buff,
540 ia_drc_params_bs_dec_struct* ia_drc_params_struct,
541 ia_drc_config* drc_config,
542 ia_drc_config_ext* str_drc_config_ext) {
543 WORD32 dwnmix_instructions_v1_flag;
544 WORD32 dwnmix_instructions_v1_count;
545 WORD32 drc_coeffs_and_instructions_uni_drc_v1_flag;
546 WORD32 drc_coefficients_uni_drc_v1_count;
547 WORD32 drc_instructions_uni_drc_v1_count;
548
549 WORD32 i = 0, err = 0;
550 const WORD32 version = 1;
551
552 dwnmix_instructions_v1_flag = impd_read_bits_buf(it_bit_buff, 1);
553 if (it_bit_buff->error) return it_bit_buff->error;
554 if (dwnmix_instructions_v1_flag == 1) {
555 dwnmix_instructions_v1_count = impd_read_bits_buf(it_bit_buff, 7);
556 if (it_bit_buff->error) return it_bit_buff->error;
557 if ((dwnmix_instructions_v1_count + drc_config->dwnmix_instructions_count) >
558 DOWNMIX_INSTRUCTION_COUNT_MAX)
559 return UNEXPECTED_ERROR;
560 for (i = 0; i < dwnmix_instructions_v1_count; i++) {
561 err = impd_parse_dwnmix_instructions(
562 it_bit_buff, version, ia_drc_params_struct,
563 &drc_config->channel_layout,
564 &drc_config
565 ->dwnmix_instructions[i +
566 drc_config->dwnmix_instructions_count]);
567 if (err) return (err);
568 }
569 drc_config->dwnmix_instructions_count += dwnmix_instructions_v1_count;
570 }
571
572 drc_coeffs_and_instructions_uni_drc_v1_flag =
573 impd_read_bits_buf(it_bit_buff, 1);
574 if (it_bit_buff->error) return it_bit_buff->error;
575 if (drc_coeffs_and_instructions_uni_drc_v1_flag == 1) {
576 drc_coefficients_uni_drc_v1_count = impd_read_bits_buf(it_bit_buff, 3);
577 if ((drc_coefficients_uni_drc_v1_count +
578 drc_config->drc_coefficients_drc_count) > DRC_COEFF_COUNT_MAX) {
579 return (UNEXPECTED_ERROR);
580 }
581 if (it_bit_buff->error) return it_bit_buff->error;
582 for (i = 0; i < drc_coefficients_uni_drc_v1_count; i++) {
583 err = impd_drc_parse_coeff(
584 it_bit_buff, version, ia_drc_params_struct,
585 &drc_config->str_p_loc_drc_coefficients_uni_drc
586 [i + drc_config->drc_coefficients_drc_count]);
587 if (err) return (err);
588 }
589 drc_config->drc_coefficients_drc_count += drc_coefficients_uni_drc_v1_count;
590
591 drc_instructions_uni_drc_v1_count = impd_read_bits_buf(it_bit_buff, 6);
592 if (it_bit_buff->error) return it_bit_buff->error;
593 if (drc_config->drc_instructions_uni_drc_count +
594 drc_instructions_uni_drc_v1_count >
595 DRC_INSTRUCTIONS_COUNT_MAX)
596 return (UNEXPECTED_ERROR);
597
598 for (i = 0; i < drc_instructions_uni_drc_v1_count; i++) {
599 err = impd_parse_drc_instructions_uni_drc(
600 it_bit_buff, version, drc_config,
601 &drc_config->str_drc_instruction_str
602 [i + drc_config->drc_instructions_uni_drc_count]);
603 if (err) return (err);
604 }
605 drc_config->drc_instructions_uni_drc_count +=
606 drc_instructions_uni_drc_v1_count;
607 }
608
609 str_drc_config_ext->loud_eq_instructions_flag =
610 impd_read_bits_buf(it_bit_buff, 1);
611 if (it_bit_buff->error) return it_bit_buff->error;
612 if (str_drc_config_ext->loud_eq_instructions_flag == 1) {
613 str_drc_config_ext->loud_eq_instructions_count =
614 impd_read_bits_buf(it_bit_buff, 4);
615
616 if (it_bit_buff->error) return it_bit_buff->error;
617 if (str_drc_config_ext->loud_eq_instructions_count >
618 LOUD_EQ_INSTRUCTIONS_COUNT_MAX)
619 return UNEXPECTED_ERROR;
620 for (i = 0; i < str_drc_config_ext->loud_eq_instructions_count; i++) {
621 err = impd_parse_loud_eq_instructions(
622 it_bit_buff, &str_drc_config_ext->loud_eq_instructions[i]);
623 if (err) return (err);
624 }
625 } else {
626 str_drc_config_ext->loud_eq_instructions_count = 0;
627 }
628
629 str_drc_config_ext->eq_flag = impd_read_bits_buf(it_bit_buff, 1);
630 if (it_bit_buff->error) return it_bit_buff->error;
631 if (str_drc_config_ext->eq_flag == 1) {
632 err = impd_parse_eq_coefficients(it_bit_buff,
633 &str_drc_config_ext->str_eq_coeff);
634 if (err) return (err);
635 str_drc_config_ext->eq_instructions_count =
636 impd_read_bits_buf(it_bit_buff, 4);
637 if (str_drc_config_ext->eq_instructions_count > EQ_INSTRUCTIONS_COUNT_MAX)
638 return UNEXPECTED_ERROR;
639 if (it_bit_buff->error) return it_bit_buff->error;
640 for (i = 0; i < str_drc_config_ext->eq_instructions_count; i++) {
641 err = impd_parse_eq_instructions(
642 it_bit_buff, drc_config, &str_drc_config_ext->str_eq_instructions[i]);
643 if (err) return (err);
644 }
645 }
646 return 0;
647 }
648
impd_parse_filt_block(ia_bit_buf_struct * it_bit_buff,ia_filt_block_struct * str_filter_block,WORD32 block_count)649 WORD32 impd_parse_filt_block(ia_bit_buf_struct* it_bit_buff,
650 ia_filt_block_struct* str_filter_block,
651 WORD32 block_count) {
652 // WORD32 err = 0;
653 WORD32 k, j, temp;
654 ia_filt_ele_struct* str_filter_element;
655
656 for (j = 0; j < block_count; j++) {
657 str_filter_block->filter_element_count = impd_read_bits_buf(it_bit_buff, 6);
658 if (it_bit_buff->error) return it_bit_buff->error;
659 if (str_filter_block->filter_element_count > FILTER_ELEMENT_COUNT_MAX)
660 return UNEXPECTED_ERROR;
661 str_filter_element = &str_filter_block->str_filter_element[0];
662 for (k = 0; k < str_filter_block->filter_element_count; k++) {
663 temp = impd_read_bits_buf(it_bit_buff, 7);
664 if (it_bit_buff->error) return it_bit_buff->error;
665
666 str_filter_element->filt_ele_idx = (temp & 0x7E) >> 1;
667 if (str_filter_element->filt_ele_idx >= FILTER_ELEMENT_COUNT_MAX)
668 return (UNEXPECTED_ERROR);
669 str_filter_element->filt_ele_gain_flag = temp & 1;
670 ;
671
672 if (str_filter_element->filt_ele_gain_flag) {
673 WORD32 bs_filter_element_gain;
674 bs_filter_element_gain = impd_read_bits_buf(it_bit_buff, 10);
675 if (it_bit_buff->error) return it_bit_buff->error;
676 str_filter_element->filt_ele_gain =
677 bs_filter_element_gain * 0.125f - 96.0f;
678 }
679
680 str_filter_element++;
681 }
682 str_filter_block++;
683 }
684 return (0);
685 }
686
impd_parse_unique_td_filt_ele(ia_bit_buf_struct * it_bit_buff,ia_unique_td_filt_element * unique_td_filt_ele,WORD32 td_filter_element_count)687 WORD32 impd_parse_unique_td_filt_ele(
688 ia_bit_buf_struct* it_bit_buff,
689 ia_unique_td_filt_element* unique_td_filt_ele,
690 WORD32 td_filter_element_count) {
691 WORD32 m, sign, j, temp;
692 FLOAT32 tmp;
693
694 for (j = 0; j < td_filter_element_count; j++) {
695 unique_td_filt_ele->eq_filter_format = impd_read_bits_buf(it_bit_buff, 1);
696 if (it_bit_buff->error) return it_bit_buff->error;
697
698 if (unique_td_filt_ele->eq_filter_format == 0) {
699 WORD32 bs_real_zero_radius, bs_generic_zero_radius, bs_generic_zero_angle;
700 WORD32 bs_real_pole_radius, bs_cmplx_pole_radius, bs_cmplx_pole_angle;
701 WORD32 bs_real_zero_radius_one_count;
702
703 temp = impd_read_bits_buf(it_bit_buff, 23);
704 if (it_bit_buff->error) return it_bit_buff->error;
705
706 bs_real_zero_radius_one_count = (temp >> 20) & 7;
707
708 unique_td_filt_ele->bs_real_zero_radius_one_count =
709 2 * bs_real_zero_radius_one_count;
710 unique_td_filt_ele->real_zero_count = (temp & 0xFC000) >> 14;
711
712 unique_td_filt_ele->generic_zero_count = (temp & 0x3F00) >> 8;
713
714 unique_td_filt_ele->real_pole_count = (temp & 0xF0) >> 4;
715
716 unique_td_filt_ele->cmplx_pole_count = temp & 0xF;
717
718 temp = impd_read_bits_buf(
719 it_bit_buff, unique_td_filt_ele->bs_real_zero_radius_one_count);
720 if (it_bit_buff->error) return it_bit_buff->error;
721
722 for (m = unique_td_filt_ele->bs_real_zero_radius_one_count - 1; m >= 0;
723 m--) {
724 unique_td_filt_ele->zero_sign[m] = (temp & 1);
725 temp = temp >> 1;
726 }
727
728 for (m = 0; m < unique_td_filt_ele->real_zero_count; m++) {
729 temp = impd_read_bits_buf(it_bit_buff, 8);
730 if (it_bit_buff->error) return it_bit_buff->error;
731
732 bs_real_zero_radius = (temp & 0xFE) >> 1;
733
734 sign = temp & 0x01;
735
736 tmp = 1.0f - zero_pole_radius_tbl[bs_real_zero_radius];
737
738 sign = sign << 1;
739
740 unique_td_filt_ele->real_zero_radius[m] = (1 - sign) * tmp;
741 }
742 for (m = 0; m < unique_td_filt_ele->generic_zero_count; m++) {
743 temp = impd_read_bits_buf(it_bit_buff, 14);
744 if (it_bit_buff->error) return it_bit_buff->error;
745
746 bs_generic_zero_radius = (temp & 0x3F80) >> 7;
747
748 unique_td_filt_ele->generic_zero_radius[m] =
749 1.0f - zero_pole_radius_tbl[bs_generic_zero_radius];
750
751 bs_generic_zero_angle = (temp & 0x7F);
752
753 unique_td_filt_ele->generic_zero_angle[m] =
754 zero_pole_angle_tbl[bs_generic_zero_angle];
755 }
756 for (m = 0; m < unique_td_filt_ele->real_pole_count; m++) {
757 temp = impd_read_bits_buf(it_bit_buff, 8);
758 if (it_bit_buff->error) return it_bit_buff->error;
759
760 bs_real_pole_radius = (temp & 0xFE) >> 1;
761
762 sign = temp & 0x01;
763
764 tmp = 1.0f - zero_pole_radius_tbl[bs_real_pole_radius];
765
766 sign = sign << 1;
767
768 unique_td_filt_ele->real_pole_radius[m] = (1 - sign) * tmp;
769 }
770 for (m = 0; m < unique_td_filt_ele->cmplx_pole_count; m++) {
771 temp = impd_read_bits_buf(it_bit_buff, 14);
772
773 if (it_bit_buff->error) return it_bit_buff->error;
774
775 bs_cmplx_pole_radius = (temp & 0x3F80) >> 7;
776
777 unique_td_filt_ele->complex_pole_radius[m] =
778 1.0f - zero_pole_radius_tbl[bs_cmplx_pole_radius];
779
780 bs_cmplx_pole_angle = (temp & 0x7F);
781
782 unique_td_filt_ele->complex_pole_angle[m] =
783 zero_pole_angle_tbl[bs_cmplx_pole_angle];
784 }
785 } else {
786 temp = impd_read_bits_buf(it_bit_buff, 8);
787 if (it_bit_buff->error) return it_bit_buff->error;
788
789 unique_td_filt_ele->fir_filt_order = (temp & 0xFE) >> 1;
790
791 unique_td_filt_ele->fir_symmetry = temp & 0x01;
792
793 for (m = 0; m < unique_td_filt_ele->fir_filt_order / 2 + 1; m++) {
794 WORD32 sign, bs_fir_coeff;
795 FLOAT32 tmp;
796
797 temp = impd_read_bits_buf(it_bit_buff, 11);
798 if (it_bit_buff->error) return it_bit_buff->error;
799 sign = (temp >> 10) & 0x01;
800
801 bs_fir_coeff = temp & 0x03FF;
802
803 tmp = (FLOAT32)pow(10.0f, -0.05f * bs_fir_coeff * 0.0625f);
804
805 sign = sign << 1;
806
807 unique_td_filt_ele->fir_coeff[m] = (1 - sign) * tmp;
808 }
809 }
810 unique_td_filt_ele++;
811 }
812 return (0);
813 }
814
impd_decode_eq_slope_code(ia_bit_buf_struct * it_bit_buff,FLOAT32 * eq_slope,WORD32 num_eq_nodes)815 WORD32 impd_decode_eq_slope_code(ia_bit_buf_struct* it_bit_buff,
816 FLOAT32* eq_slope, WORD32 num_eq_nodes) {
817 WORD32 bits = 0;
818 WORD32 k;
819
820 for (k = 0; k < num_eq_nodes; k++) {
821 bits = impd_read_bits_buf(it_bit_buff, 1);
822 if (it_bit_buff->error) return it_bit_buff->error;
823 if (bits == 0x1) {
824 *eq_slope = 0.0f;
825 } else {
826 bits = impd_read_bits_buf(it_bit_buff, 4);
827 if (it_bit_buff->error) return it_bit_buff->error;
828 *eq_slope = eq_slope_tbl[bits];
829 }
830 eq_slope++;
831 }
832 return (0);
833 }
834
835 WORD32
impd_decode_gain_initial_code(ia_bit_buf_struct * it_bit_buff,FLOAT32 * eq_gain_initial)836 impd_decode_gain_initial_code(ia_bit_buf_struct* it_bit_buff,
837 FLOAT32* eq_gain_initial) {
838 WORD32 bits, bits1;
839
840 bits1 = impd_read_bits_buf(it_bit_buff, 2);
841 if (it_bit_buff->error) return it_bit_buff->error;
842
843 switch (bits1) {
844 case 0x0:
845 bits = impd_read_bits_buf(it_bit_buff, 5);
846 if (it_bit_buff->error) return it_bit_buff->error;
847 *eq_gain_initial = 0.5f * bits - 8.0f;
848 break;
849 case 0x1:
850 case 0x2:
851
852 bits = impd_read_bits_buf(it_bit_buff, 4);
853 if (it_bit_buff->error) return it_bit_buff->error;
854 if (bits < 8) {
855 *eq_gain_initial = bits1 * bits - bits1 * 16.0f;
856 } else {
857 *eq_gain_initial = (FLOAT32)bits1 * bits;
858 }
859 break;
860
861 case 0x3:
862 bits = impd_read_bits_buf(it_bit_buff, 3);
863 if (it_bit_buff->error) return it_bit_buff->error;
864 *eq_gain_initial = 4.0f * bits - 64.0f;
865 break;
866
867 default:
868 break;
869 }
870 return (0);
871 }
872
impd_parse_eq_subband_gain_spline(ia_bit_buf_struct * it_bit_buff,ia_eq_subband_gain_spline_struct * str_eq_subband_gain_spline,WORD32 eq_subband_gains_count)873 WORD32 impd_parse_eq_subband_gain_spline(
874 ia_bit_buf_struct* it_bit_buff,
875 ia_eq_subband_gain_spline_struct* str_eq_subband_gain_spline,
876 WORD32 eq_subband_gains_count) {
877 WORD32 err = 0, eq_nodes_cnt, j, k, bits, *eq_freq_delta;
878 FLOAT32* peq_gain_delta;
879
880 for (j = 0; j < eq_subband_gains_count; j++) {
881 eq_nodes_cnt = impd_read_bits_buf(it_bit_buff, 5);
882 if (it_bit_buff->error) return it_bit_buff->error;
883
884 str_eq_subband_gain_spline->num_eq_nodes = eq_nodes_cnt + 2;
885
886 err = impd_decode_eq_slope_code(it_bit_buff,
887 &(str_eq_subband_gain_spline->eq_slope[0]),
888 str_eq_subband_gain_spline->num_eq_nodes);
889 if (err) return (err);
890
891 eq_freq_delta = &(str_eq_subband_gain_spline->eq_freq_delta[1]);
892 for (k = 1; k < str_eq_subband_gain_spline->num_eq_nodes; k++) {
893 bits = impd_read_bits_buf(it_bit_buff, 4);
894 if (it_bit_buff->error) return it_bit_buff->error;
895 *eq_freq_delta = bits + 1;
896 eq_freq_delta++;
897 }
898
899 err = impd_decode_gain_initial_code(
900 it_bit_buff, &(str_eq_subband_gain_spline->eq_gain_initial));
901 if (err) return (err);
902
903 peq_gain_delta = &(str_eq_subband_gain_spline->eq_gain_delta[1]);
904 for (k = 1; k < str_eq_subband_gain_spline->num_eq_nodes; k++) {
905 bits = impd_read_bits_buf(it_bit_buff, 5);
906 if (it_bit_buff->error) return it_bit_buff->error;
907
908 *peq_gain_delta = eq_gain_delta_tbl[bits];
909 peq_gain_delta++;
910 }
911 str_eq_subband_gain_spline++;
912 }
913 return (0);
914 }
915
impd_parse_eq_subband_gain_vector(ia_bit_buf_struct * it_bit_buff,const WORD32 eq_subband_gain_count,ia_eq_subband_gain_vector * str_eq_subband_gain_vector,WORD32 eq_subband_gains_count)916 WORD32 impd_parse_eq_subband_gain_vector(
917 ia_bit_buf_struct* it_bit_buff, const WORD32 eq_subband_gain_count,
918 ia_eq_subband_gain_vector* str_eq_subband_gain_vector,
919 WORD32 eq_subband_gains_count) {
920 WORD32 m, k, temp;
921
922 for (k = 0; k < eq_subband_gains_count; k++) {
923 for (m = 0; m < eq_subband_gain_count; m++) {
924 WORD32 sign, bs_eq_subband_gain;
925 temp = impd_read_bits_buf(it_bit_buff, 9);
926 if (it_bit_buff->error) return it_bit_buff->error;
927
928 sign = (temp >> 8) & 1;
929 bs_eq_subband_gain = temp & 0x7F;
930
931 sign = sign << 1;
932 str_eq_subband_gain_vector->eq_subband_gain[m] =
933 ((1 - sign) * bs_eq_subband_gain) * 0.125f;
934 }
935 str_eq_subband_gain_vector++;
936 }
937 return (0);
938 }
939
impd_parse_eq_coefficients(ia_bit_buf_struct * it_bit_buff,ia_eq_coeff_struct * str_eq_coeff)940 WORD32 impd_parse_eq_coefficients(ia_bit_buf_struct* it_bit_buff,
941 ia_eq_coeff_struct* str_eq_coeff) {
942 WORD32 err = 0;
943 WORD32 eq_gain_cnt, mu, nu, temp;
944 static const WORD32 subband_gain_len_tbl[7] = {0, 32, 39, 64, 71, 128, 135};
945
946 str_eq_coeff->eq_delay_max_present = impd_read_bits_buf(it_bit_buff, 1);
947 if (it_bit_buff->error) return it_bit_buff->error;
948
949 if (str_eq_coeff->eq_delay_max_present) {
950 mu = impd_read_bits_buf(it_bit_buff, 5);
951 if (it_bit_buff->error) return it_bit_buff->error;
952 nu = impd_read_bits_buf(it_bit_buff, 3);
953 if (it_bit_buff->error) return it_bit_buff->error;
954 str_eq_coeff->eq_delay_max = 16 * mu * (1 << nu);
955 }
956
957 str_eq_coeff->unique_filter_block_count = impd_read_bits_buf(it_bit_buff, 6);
958 if (it_bit_buff->error) return it_bit_buff->error;
959
960 if (str_eq_coeff->unique_filter_block_count > FILTER_BLOCK_COUNT_MAX) {
961 return (UNEXPECTED_ERROR);
962 }
963
964 err = impd_parse_filt_block(it_bit_buff, &(str_eq_coeff->str_filter_block[0]),
965 str_eq_coeff->unique_filter_block_count);
966 if (err) return (err);
967
968 str_eq_coeff->unique_td_filter_element_count =
969 impd_read_bits_buf(it_bit_buff, 6);
970 if (str_eq_coeff->unique_td_filter_element_count > FILTER_ELEMENT_COUNT_MAX)
971 return (UNEXPECTED_ERROR);
972 if (it_bit_buff->error) return it_bit_buff->error;
973
974 err = impd_parse_unique_td_filt_ele(
975 it_bit_buff, &(str_eq_coeff->unique_td_filt_ele[0]),
976 str_eq_coeff->unique_td_filter_element_count);
977 if (err) return (err);
978
979 str_eq_coeff->unique_eq_subband_gains_count =
980 impd_read_bits_buf(it_bit_buff, 6);
981 if (str_eq_coeff->unique_eq_subband_gains_count >
982 UNIQUE_SUBBAND_GAIN_COUNT_MAX)
983 return (UNEXPECTED_ERROR);
984 if (it_bit_buff->error) return it_bit_buff->error;
985
986 if (str_eq_coeff->unique_eq_subband_gains_count > 0) {
987 temp = impd_read_bits_buf(it_bit_buff, 5);
988 if (it_bit_buff->error) return it_bit_buff->error;
989 str_eq_coeff->eq_subband_gain_representation = (temp >> 4) & 0x01;
990
991 str_eq_coeff->eq_subband_gain_format = temp & 0x0F;
992 if ((str_eq_coeff->eq_subband_gain_format > 0) &&
993 (str_eq_coeff->eq_subband_gain_format < GAINFORMAT_UNIFORM)) {
994 str_eq_coeff->eq_subband_gain_count =
995 subband_gain_len_tbl[str_eq_coeff->eq_subband_gain_format];
996 } else {
997 /* Gain format 0 or any value between 7 to 15 is considered as default
998 * case */
999 eq_gain_cnt = impd_read_bits_buf(it_bit_buff, 8);
1000
1001 if (it_bit_buff->error) return it_bit_buff->error;
1002 str_eq_coeff->eq_subband_gain_count = eq_gain_cnt + 1;
1003
1004 if (str_eq_coeff->eq_subband_gain_count > EQ_SUBBAND_GAIN_COUNT_MAX)
1005 return UNEXPECTED_ERROR;
1006
1007 }
1008
1009 if (str_eq_coeff->eq_subband_gain_representation == 1) {
1010 err = impd_parse_eq_subband_gain_spline(
1011 it_bit_buff, &(str_eq_coeff->str_eq_subband_gain_spline[0]),
1012 str_eq_coeff->unique_eq_subband_gains_count);
1013 if (err) return (err);
1014 } else {
1015 err = impd_parse_eq_subband_gain_vector(
1016 it_bit_buff, str_eq_coeff->eq_subband_gain_count,
1017 &(str_eq_coeff->str_eq_subband_gain_vector[0]),
1018 str_eq_coeff->unique_eq_subband_gains_count);
1019 if (err) return (err);
1020 }
1021 }
1022
1023 return (0);
1024 }
1025
impd_parser_td_filter_cascade(ia_bit_buf_struct * it_bit_buff,ia_eq_instructions_struct * str_eq_instructions,ia_td_filter_cascade_struct * str_td_filter_cascade)1026 WORD32 impd_parser_td_filter_cascade(
1027 ia_bit_buf_struct* it_bit_buff,
1028 ia_eq_instructions_struct* str_eq_instructions,
1029 ia_td_filter_cascade_struct* str_td_filter_cascade) {
1030 // WORD32 err=0,
1031 WORD32 i, ii, k;
1032 WORD32 eq_cascade_gain;
1033 ia_filter_block_refs_struct* str_filter_block_refs =
1034 &(str_td_filter_cascade->str_filter_block_refs[0]);
1035
1036 for (i = 0; i < str_eq_instructions->eq_ch_group_count; i++) {
1037 str_td_filter_cascade->eq_cascade_gain_present[i] =
1038 impd_read_bits_buf(it_bit_buff, 1);
1039 if (it_bit_buff->error) return it_bit_buff->error;
1040 if (str_td_filter_cascade->eq_cascade_gain_present[i]) {
1041 eq_cascade_gain = impd_read_bits_buf(it_bit_buff, 10);
1042 if (it_bit_buff->error) return it_bit_buff->error;
1043 str_td_filter_cascade->eq_cascade_gain[i] =
1044 0.125f * eq_cascade_gain - 96.0f;
1045 } else {
1046 str_td_filter_cascade->eq_cascade_gain[i] = 0.0f;
1047 }
1048
1049 str_filter_block_refs->filter_block_count =
1050 impd_read_bits_buf(it_bit_buff, 4);
1051 if (it_bit_buff->error) return it_bit_buff->error;
1052 if (str_filter_block_refs->filter_block_count > EQ_FILTER_BLOCK_COUNT_MAX) {
1053 return (UNEXPECTED_ERROR);
1054 }
1055
1056 for (ii = 0; ii < str_filter_block_refs->filter_block_count; ii++) {
1057 str_filter_block_refs->filter_block_index[ii] =
1058 impd_read_bits_buf(it_bit_buff, 7);
1059 if (it_bit_buff->error) return it_bit_buff->error;
1060 if (str_filter_block_refs->filter_block_index[ii] >=
1061 FILTER_BLOCK_COUNT_MAX)
1062 return (UNEXPECTED_ERROR);
1063 }
1064 str_filter_block_refs++;
1065 }
1066
1067 str_td_filter_cascade->eq_phase_alignment_present =
1068 impd_read_bits_buf(it_bit_buff, 1);
1069 if (it_bit_buff->error) return it_bit_buff->error;
1070
1071 if (str_td_filter_cascade->eq_phase_alignment_present) {
1072 for (i = 0; i < str_eq_instructions->eq_ch_group_count; i++) {
1073 for (k = i + 1; k < str_eq_instructions->eq_ch_group_count; k++) {
1074 str_td_filter_cascade->eq_phase_alignment[i][k] =
1075 impd_read_bits_buf(it_bit_buff, 1);
1076 if (it_bit_buff->error) return it_bit_buff->error;
1077 }
1078 }
1079
1080 } else {
1081 for (i = 0; i < str_eq_instructions->eq_ch_group_count; i++) {
1082 for (k = i + 1; k < str_eq_instructions->eq_ch_group_count; k++)
1083 str_td_filter_cascade->eq_phase_alignment[i][k] = 1;
1084 }
1085 }
1086
1087 return (0);
1088 }
1089
impd_parse_eq_instructions(ia_bit_buf_struct * it_bit_buff,ia_drc_config * drc_config,ia_eq_instructions_struct * str_eq_instructions)1090 WORD32 impd_parse_eq_instructions(
1091 ia_bit_buf_struct* it_bit_buff, ia_drc_config* drc_config,
1092 ia_eq_instructions_struct* str_eq_instructions) {
1093 WORD32 i, channel_count, temp;
1094 WORD32 dmix_id_present, additional_dmix_id_present,
1095 additional_dmix_id_cnt = 0;
1096 WORD32 additional_drc_set_id_present, additional_drc_set_id_cnt;
1097
1098 temp = impd_read_bits_buf(it_bit_buff, 11);
1099 if (it_bit_buff->error) return it_bit_buff->error;
1100
1101 str_eq_instructions->eq_set_id = (temp >> 5) & 0x3F;
1102
1103 if (str_eq_instructions->eq_set_id >= EQ_INSTRUCTIONS_COUNT_MAX)
1104 return UNEXPECTED_ERROR;
1105
1106 str_eq_instructions->eq_set_complexity_level = (temp >> 1) & 0x0F;
1107
1108 dmix_id_present = temp & 0x01;
1109
1110 if (dmix_id_present) {
1111 temp = impd_read_bits_buf(it_bit_buff, 9);
1112 if (it_bit_buff->error) return it_bit_buff->error;
1113
1114 str_eq_instructions->downmix_id[0] = (temp >> 2) & 0x7F;
1115
1116 str_eq_instructions->eq_apply_to_downmix = (temp >> 1) & 0x01;
1117
1118 additional_dmix_id_present = temp & 0x01;
1119
1120 if (additional_dmix_id_present) {
1121 additional_dmix_id_cnt = impd_read_bits_buf(it_bit_buff, 7);
1122 if (it_bit_buff->error) return it_bit_buff->error;
1123
1124 if (additional_dmix_id_cnt >= DOWNMIX_ID_COUNT_MAX)
1125 return UNEXPECTED_ERROR;
1126
1127 for (i = 1; i < additional_dmix_id_cnt + 1; i++) {
1128 str_eq_instructions->downmix_id[i] = impd_read_bits_buf(it_bit_buff, 7);
1129 if (it_bit_buff->error) return it_bit_buff->error;
1130 }
1131 }
1132 } else {
1133 str_eq_instructions->downmix_id[0] = 0;
1134 }
1135
1136 str_eq_instructions->dwnmix_id_count = 1 + additional_dmix_id_cnt;
1137
1138 temp = impd_read_bits_buf(it_bit_buff, 7);
1139 if (it_bit_buff->error) return it_bit_buff->error;
1140
1141 str_eq_instructions->drc_set_id[0] = (temp >> 1) & 0x3F;
1142
1143 additional_drc_set_id_present = temp & 0x01;
1144
1145 if (additional_drc_set_id_present) {
1146 additional_drc_set_id_cnt = impd_read_bits_buf(it_bit_buff, 6);
1147 if (it_bit_buff->error) return it_bit_buff->error;
1148 if (additional_drc_set_id_cnt >= DRC_SET_ID_COUNT_MAX)
1149 return UNEXPECTED_ERROR;
1150
1151 for (i = 1; i < additional_drc_set_id_cnt + 1; i++) {
1152 str_eq_instructions->drc_set_id[i] = impd_read_bits_buf(it_bit_buff, 6);
1153 if (it_bit_buff->error) return it_bit_buff->error;
1154 }
1155 } else {
1156 additional_drc_set_id_cnt = 0;
1157 }
1158 str_eq_instructions->drc_set_id_count = 1 + additional_drc_set_id_cnt;
1159
1160 temp = impd_read_bits_buf(it_bit_buff, 17);
1161 if (it_bit_buff->error) return it_bit_buff->error;
1162
1163 str_eq_instructions->eq_set_purpose = (temp >> 1) & 0xFFFF;
1164
1165 str_eq_instructions->depends_on_eq_set_present = temp & 0x01;
1166
1167 if (str_eq_instructions->depends_on_eq_set_present) {
1168 str_eq_instructions->depends_on_eq_set = impd_read_bits_buf(it_bit_buff, 6);
1169 if (it_bit_buff->error) return it_bit_buff->error;
1170 } else {
1171 str_eq_instructions->no_independent_eq_use =
1172 impd_read_bits_buf(it_bit_buff, 1);
1173 if (it_bit_buff->error) return it_bit_buff->error;
1174 }
1175
1176 str_eq_instructions->eq_channel_count = channel_count =
1177 drc_config->channel_layout.base_channel_count;
1178
1179 if ((dmix_id_present == 1) &&
1180 (str_eq_instructions->eq_apply_to_downmix == 1) &&
1181 (str_eq_instructions->downmix_id[0] != 0) &&
1182 (str_eq_instructions->downmix_id[0] != ID_FOR_ANY_DOWNMIX) &&
1183 (str_eq_instructions->dwnmix_id_count == 1)) {
1184 for (i = 0; i < drc_config->dwnmix_instructions_count; i++) {
1185 if (str_eq_instructions->downmix_id[0] ==
1186 drc_config->dwnmix_instructions[i].downmix_id)
1187 break;
1188 }
1189 if (i == drc_config->dwnmix_instructions_count) {
1190 return UNEXPECTED_ERROR;
1191 }
1192
1193 str_eq_instructions->eq_channel_count = channel_count =
1194 drc_config->dwnmix_instructions[i].target_channel_count;
1195 } else if ((str_eq_instructions->downmix_id[0] == ID_FOR_ANY_DOWNMIX) ||
1196 (str_eq_instructions->dwnmix_id_count > 1)) {
1197 channel_count = 1;
1198 }
1199
1200 str_eq_instructions->eq_ch_group_count = 0;
1201
1202 for (i = 0; i < channel_count; i++) {
1203 WORD32 tmp = impd_read_bits_buf(it_bit_buff, 7);
1204 if (it_bit_buff->error) return it_bit_buff->error;
1205 if (tmp >= EQ_CHANNEL_GROUP_COUNT_MAX) return UNEXPECTED_ERROR;
1206 str_eq_instructions->eq_ch_group_of_channel[i] = tmp;
1207 }
1208 {
1209 WORD32 total;
1210 WORD32 groups_used[EQ_CHANNEL_GROUP_COUNT_MAX] = {0};
1211 for (i = 0; i < channel_count; i++)
1212 groups_used[str_eq_instructions->eq_ch_group_of_channel[i]] = 1;
1213 total = 0;
1214 for (i = 0; i < EQ_CHANNEL_GROUP_COUNT_MAX; i++)
1215 if (groups_used[i]) total++;
1216 str_eq_instructions->eq_ch_group_count = total;
1217 }
1218
1219 if (str_eq_instructions->eq_ch_group_count > EQ_CHANNEL_GROUP_COUNT_MAX)
1220 return (UNEXPECTED_ERROR);
1221
1222 str_eq_instructions->td_filter_cascade_present =
1223 impd_read_bits_buf(it_bit_buff, 1);
1224 if (it_bit_buff->error) return it_bit_buff->error;
1225
1226 if (str_eq_instructions->td_filter_cascade_present) {
1227 WORD32 err = impd_parser_td_filter_cascade(
1228 it_bit_buff, str_eq_instructions,
1229 &(str_eq_instructions->str_td_filter_cascade));
1230 if (err) return err;
1231 }
1232
1233 str_eq_instructions->subband_gains_present =
1234 impd_read_bits_buf(it_bit_buff, 1);
1235 if (it_bit_buff->error) return it_bit_buff->error;
1236
1237 if (str_eq_instructions->subband_gains_present) {
1238 for (i = 0; i < str_eq_instructions->eq_ch_group_count; i++) {
1239 WORD32 tmp = impd_read_bits_buf(it_bit_buff, 6);
1240 if (it_bit_buff->error) return it_bit_buff->error;
1241 if (tmp >= UNIQUE_SUBBAND_GAIN_COUNT_MAX) return UNEXPECTED_ERROR;
1242 str_eq_instructions->subband_gains_index[i] = tmp;
1243 }
1244 }
1245
1246 str_eq_instructions->eq_transition_duration_present =
1247 impd_read_bits_buf(it_bit_buff, 1);
1248 if (it_bit_buff->error) return it_bit_buff->error;
1249
1250 if (str_eq_instructions->eq_transition_duration_present) {
1251 WORD32 bs_eq_transition_duration;
1252 bs_eq_transition_duration = impd_read_bits_buf(it_bit_buff, 5);
1253 if (it_bit_buff->error) return it_bit_buff->error;
1254
1255 str_eq_instructions->eq_transition_duration = (WORD32)(
1256 0.001f *
1257 (FLOAT32)pow(2.0f, 2.0f + bs_eq_transition_duration * 0.0625f));
1258 }
1259 return (0);
1260 }
1261
impd_parse_loud_eq_instructions(ia_bit_buf_struct * it_bit_buff,ia_loud_eq_instructions_struct * loud_eq_instructions)1262 WORD32 impd_parse_loud_eq_instructions(
1263 ia_bit_buf_struct* it_bit_buff,
1264 ia_loud_eq_instructions_struct* loud_eq_instructions) {
1265 WORD32 i, bs_loud_eq_scaling, bs_loud_eq_offset, temp;
1266 WORD32 dmix_id_present, additional_dmix_id_present,
1267 additional_dmix_id_cnt = 0;
1268 WORD32 drc_set_id_present, additional_drc_set_id_present,
1269 additional_drc_set_id_cnt = 0;
1270 WORD32 eq_set_id_present, additional_eq_set_id_present,
1271 additional_eq_set_id_cnt = 0;
1272
1273 temp = impd_read_bits_buf(it_bit_buff, 9);
1274 if (it_bit_buff->error) return it_bit_buff->error;
1275 loud_eq_instructions->loud_eq_set_id = (temp >> 5) & 0x0F;
1276
1277 loud_eq_instructions->drc_location = (temp >> 1) & 0x0F;
1278
1279 dmix_id_present = temp & 0x01;
1280
1281 if (dmix_id_present) {
1282 temp = impd_read_bits_buf(it_bit_buff, 8);
1283 if (it_bit_buff->error) return it_bit_buff->error;
1284
1285 loud_eq_instructions->downmix_id[0] = (temp >> 1) & 0x7F;
1286
1287 additional_dmix_id_present = temp & 0x01;
1288
1289 if (additional_dmix_id_present) {
1290 additional_dmix_id_cnt = impd_read_bits_buf(it_bit_buff, 7);
1291 if (it_bit_buff->error) return it_bit_buff->error;
1292 if (additional_dmix_id_cnt >= DOWNMIX_ID_COUNT_MAX)
1293 return UNEXPECTED_ERROR;
1294 for (i = 1; i < additional_dmix_id_cnt + 1; i++) {
1295 loud_eq_instructions->downmix_id[i] =
1296 impd_read_bits_buf(it_bit_buff, 7);
1297 if (it_bit_buff->error) return it_bit_buff->error;
1298 }
1299 }
1300 } else {
1301 loud_eq_instructions->downmix_id[0] = 0;
1302 }
1303
1304 loud_eq_instructions->dwnmix_id_count = 1 + additional_dmix_id_cnt;
1305
1306 drc_set_id_present = impd_read_bits_buf(it_bit_buff, 1);
1307 if (it_bit_buff->error) return it_bit_buff->error;
1308
1309 if (drc_set_id_present) {
1310 temp = impd_read_bits_buf(it_bit_buff, 7);
1311 if (it_bit_buff->error) return it_bit_buff->error;
1312
1313 loud_eq_instructions->drc_set_id[0] = (temp >> 1) & 0x3F;
1314
1315 additional_drc_set_id_present = temp & 0x01;
1316
1317 if (additional_drc_set_id_present) {
1318 additional_drc_set_id_cnt = impd_read_bits_buf(it_bit_buff, 6);
1319 if (it_bit_buff->error) return it_bit_buff->error;
1320 if ((additional_drc_set_id_cnt >= DRC_SET_ID_COUNT_MAX))
1321 return UNEXPECTED_ERROR;
1322
1323 for (i = 1; i < additional_drc_set_id_cnt + 1; i++) {
1324 loud_eq_instructions->drc_set_id[i] =
1325 impd_read_bits_buf(it_bit_buff, 6);
1326 if (it_bit_buff->error) return it_bit_buff->error;
1327 }
1328 }
1329 } else {
1330 loud_eq_instructions->drc_set_id[0] = 0;
1331 }
1332
1333 loud_eq_instructions->drc_set_id_count = 1 + additional_drc_set_id_cnt;
1334
1335 eq_set_id_present = impd_read_bits_buf(it_bit_buff, 1);
1336
1337 if (it_bit_buff->error) return it_bit_buff->error;
1338
1339 if (eq_set_id_present) {
1340 temp = impd_read_bits_buf(it_bit_buff, 7);
1341 if (it_bit_buff->error) return it_bit_buff->error;
1342
1343 loud_eq_instructions->eq_set_id[0] = (temp >> 1) & 0x3F;
1344
1345 additional_eq_set_id_present = temp & 0x01;
1346
1347 if (additional_eq_set_id_present) {
1348 additional_eq_set_id_cnt = impd_read_bits_buf(it_bit_buff, 6);
1349 if (it_bit_buff->error) return it_bit_buff->error;
1350 if (additional_eq_set_id_cnt >= EQ_SET_ID_COUNT_MAX)
1351 return UNEXPECTED_ERROR;
1352 for (i = 0; i < additional_eq_set_id_cnt; i++) {
1353 loud_eq_instructions->eq_set_id[i + 1] =
1354 impd_read_bits_buf(it_bit_buff, 6);
1355 if (it_bit_buff->error) return it_bit_buff->error;
1356 }
1357 }
1358 } else {
1359 loud_eq_instructions->eq_set_id[0] = 0;
1360 }
1361 loud_eq_instructions->eq_set_id_count = 1 + additional_eq_set_id_cnt;
1362
1363 temp = impd_read_bits_buf(it_bit_buff, 8);
1364 if (it_bit_buff->error) return it_bit_buff->error;
1365
1366 /* Parsed but unused */
1367 loud_eq_instructions->loudness_after_drc = (temp >> 7) & 0x01;
1368
1369 /* Parsed but unused */
1370 loud_eq_instructions->loudness_after_eq = (temp >> 6) & 0x01;
1371
1372 /* Parsed but unused */
1373 loud_eq_instructions->loud_eq_gain_sequence_count = temp & 0x3F;
1374
1375 if (loud_eq_instructions->loud_eq_gain_sequence_count >
1376 LOUD_EQ_GAIN_SEQUENCE_COUNT_MAX)
1377 return UNEXPECTED_ERROR;
1378
1379 /* Section under for loop, Parsed but unused */
1380 for (i = 0; i < loud_eq_instructions->loud_eq_gain_sequence_count; i++) {
1381 temp = impd_read_bits_buf(it_bit_buff, 7);
1382 if (it_bit_buff->error) return it_bit_buff->error;
1383
1384 loud_eq_instructions->gain_seq_idx[i] = (temp >> 1) & 0x3F;
1385
1386 loud_eq_instructions->drc_characteristic_format_is_cicp[i] = temp & 0x01;
1387
1388 if (loud_eq_instructions->drc_characteristic_format_is_cicp[i]) {
1389 loud_eq_instructions->drc_characteristic[i] =
1390 impd_read_bits_buf(it_bit_buff, 7);
1391 if (it_bit_buff->error) return it_bit_buff->error;
1392 } else {
1393 temp = impd_read_bits_buf(it_bit_buff, 8);
1394 if (it_bit_buff->error) return it_bit_buff->error;
1395
1396 loud_eq_instructions->drc_characteristic_left_index[i] =
1397 (temp >> 4) & 0x0F;
1398
1399 loud_eq_instructions->drc_characteristic_right_index[i] = temp & 0x0F;
1400 }
1401
1402 temp = impd_read_bits_buf(it_bit_buff, 9);
1403 if (it_bit_buff->error) return it_bit_buff->error;
1404
1405 loud_eq_instructions->frequency_range_index[i] = (temp >> 3) & 0x3F;
1406
1407 bs_loud_eq_scaling = temp & 0x07;
1408
1409 loud_eq_instructions->loud_eq_scaling[i] =
1410 (FLOAT32)pow(2.0f, -0.5f * bs_loud_eq_scaling);
1411
1412 bs_loud_eq_offset = impd_read_bits_buf(it_bit_buff, 5);
1413 if (it_bit_buff->error) return it_bit_buff->error;
1414
1415 loud_eq_instructions->loud_eq_offset[i] = 1.5f * bs_loud_eq_offset - 16.0f;
1416 }
1417 return (0);
1418 }
1419