1 /******************************************************************************
2 *
3 * Copyright (C) 2023 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 "ixheaacd_type_def.h"
21 #include "ixheaacd_mps_struct_def.h"
22 #include "ixheaacd_mps_res_rom.h"
23 #include "ixheaacd_mps_aac_struct.h"
24 #include "ixheaacd_constants.h"
25 #include "ixheaacd_bitbuffer.h"
26 #include "ixheaacd_common_rom.h"
27 #include "ixheaacd_sbrdecsettings.h"
28 #include "ixheaacd_sbr_scale.h"
29 #include "ixheaacd_env_extr_part.h"
30 #include "ixheaacd_sbr_rom.h"
31 #include "ixheaacd_hybrid.h"
32 #include "ixheaacd_ps_dec.h"
33 #include "ixheaacd_mps_polyphase.h"
34 #include "ixheaacd_config.h"
35 #include "ixheaacd_qmf_dec.h"
36 #include "ixheaacd_mps_dec.h"
37 #include "ixheaacd_mps_macro_def.h"
38
ixheaacd_dec_interp_umx(WORD32 m[MAX_PARAMETER_SETS][MAX_PARAMETER_BANDS],WORD32 * ptr_r,WORD32 * ptr_m_prev,ia_heaac_mps_state_struct * pstr_mps_state)39 VOID ixheaacd_dec_interp_umx(WORD32 m[MAX_PARAMETER_SETS][MAX_PARAMETER_BANDS], WORD32 *ptr_r,
40 WORD32 *ptr_m_prev, ia_heaac_mps_state_struct *pstr_mps_state) {
41 WORD32 ts, ps = 0, pb;
42 WORD32 *r_out;
43 const WORD32 *reciprocal_tab = pstr_mps_state->ia_mps_dec_mps_table.m1_m2_table_ptr->reciprocal;
44
45 WORD32 num_parameter_bands = pstr_mps_state->num_parameter_bands;
46 WORD32 num_parameter_sets = pstr_mps_state->num_parameter_sets;
47
48 WORD32 prev_slot = -1;
49 WORD32 *prm_slot = pstr_mps_state->aux_struct->param_slot;
50 WORD32 curr_slot = *prm_slot;
51
52 WORD32 temp = reciprocal_tab[curr_slot];
53 r_out = ptr_r;
54
55 for (ts = prev_slot + 1; ts <= curr_slot; ts++) {
56 for (pb = 0; pb < num_parameter_bands; pb++) {
57 WORD32 alpha = temp * (ts + 1);
58 WORD32 one_minus_alpha;
59 WORD64 result;
60
61 one_minus_alpha = (ONE_IN_Q28 - alpha);
62
63 result = ((WORD64)(*ptr_m_prev) * (WORD64)one_minus_alpha);
64 result += ((WORD64)(m[ps][pb]) * (WORD64)alpha);
65
66 *r_out++ = (WORD32)((WORD64)result >> 28);
67 ptr_m_prev++;
68 }
69 ptr_m_prev -= num_parameter_bands;
70 }
71
72 for (ps = 1; ps < num_parameter_sets; ps++) {
73 WORD32 prev_slot = prm_slot[ps - 1];
74 WORD32 curr_slot = prm_slot[ps];
75
76 temp = reciprocal_tab[curr_slot - prev_slot - 1];
77
78 for (ts = (prev_slot) + 1; ts <= (curr_slot); ts++) {
79 for (pb = 0; pb < num_parameter_bands; pb++) {
80 WORD32 alpha = (ts - prev_slot) * temp;
81 WORD64 result;
82 WORD32 one_minus_alpha;
83 one_minus_alpha = (ONE_IN_Q28 - alpha);
84
85 result = ((WORD64)(m[ps - 1][pb]) * (WORD64)one_minus_alpha);
86 result += ((WORD64)(m[ps][pb]) * (WORD64)alpha);
87
88 *r_out++ = (WORD32)((WORD64)result >> 28);
89 }
90 }
91 }
92 return;
93 }
94
ixheaacd_apply_abs_kernels(WORD32 * ptr_r_in,WORD32 * ptr_r_out,SIZE_T * ptr_params)95 VOID ixheaacd_apply_abs_kernels(WORD32 *ptr_r_in, WORD32 *ptr_r_out, SIZE_T *ptr_params) {
96 WORD32 ts, qb;
97 SIZE_T *idx_ptr = (SIZE_T *)ptr_params[0];
98 WORD32 time_slots = (WORD32)ptr_params[1];
99 WORD32 num_parameter_bands = (WORD32)ptr_params[2];
100 WORD32 hybrid_bands = (WORD32)ptr_params[3];
101
102 for (ts = 0; ts < time_slots; ts++) {
103 SIZE_T *idx = idx_ptr;
104 for (qb = 0; qb < hybrid_bands; qb++) {
105 WORD32 idx_v = (WORD32)(*idx);
106 *ptr_r_out++ = *(ptr_r_in + idx_v);
107 idx++;
108 }
109 ptr_r_in += num_parameter_bands;
110 }
111 return;
112 }
113