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
21 #include <string.h>
22 #include "ixheaac_type_def.h"
23 #include "ixheaac_constants.h"
24 #include "ixheaace_aac_constants.h"
25
26 #include "ixheaace_psy_const.h"
27 #include "ixheaace_tns.h"
28 #include "ixheaace_tns_params.h"
29 #include "ixheaace_rom.h"
30 #include "ixheaace_common_rom.h"
31 #include "ixheaace_bitbuffer.h"
32 #include "ixheaace_block_switch.h"
33 #include "ixheaace_psy_data.h"
34 #include "ixheaace_interface.h"
35
ia_enhaacplus_enc_build_interface(FLOAT32 * ptr_grouped_mdct_spec,ixheaace_sfb_energy * pstr_grouped_sfb_thres,ixheaace_sfb_energy * pstr_grouped_sfb_nrg,ixheaace_sfb_energy * pstr_grouped_sfb_spreaded_nrg,const ixheaace_sfb_energy_sum sfb_nrg_sum_lr,const ixheaace_sfb_energy_sum sfb_nrg_sum_ms,const WORD32 win_seq,const WORD32 win_shape,const WORD32 grouped_sfb_cnt,const WORD32 * ptr_grouped_sfb_offset,const WORD32 max_sfb_per_grp,const FLOAT32 * ptr_grouped_sfb_min_snr,const WORD32 total_groups_cnt,const WORD32 * ptr_group_len,ixheaace_psy_out_channel * pstr_psy_out_ch)36 VOID ia_enhaacplus_enc_build_interface(
37 FLOAT32 *ptr_grouped_mdct_spec, ixheaace_sfb_energy *pstr_grouped_sfb_thres,
38 ixheaace_sfb_energy *pstr_grouped_sfb_nrg, ixheaace_sfb_energy *pstr_grouped_sfb_spreaded_nrg,
39 const ixheaace_sfb_energy_sum sfb_nrg_sum_lr, const ixheaace_sfb_energy_sum sfb_nrg_sum_ms,
40 const WORD32 win_seq, const WORD32 win_shape, const WORD32 grouped_sfb_cnt,
41 const WORD32 *ptr_grouped_sfb_offset, const WORD32 max_sfb_per_grp,
42 const FLOAT32 *ptr_grouped_sfb_min_snr, const WORD32 total_groups_cnt,
43 const WORD32 *ptr_group_len, ixheaace_psy_out_channel *pstr_psy_out_ch) {
44 WORD32 j;
45 WORD32 grp;
46 WORD32 mask;
47
48 /* Copy values to psy_out */
49 pstr_psy_out_ch->max_sfb_per_grp = max_sfb_per_grp;
50 pstr_psy_out_ch->sfb_count = grouped_sfb_cnt;
51 pstr_psy_out_ch->sfb_per_group = grouped_sfb_cnt / total_groups_cnt;
52 pstr_psy_out_ch->window_sequence = win_seq;
53 pstr_psy_out_ch->window_shape = win_shape;
54 pstr_psy_out_ch->ptr_spec_coeffs = ptr_grouped_mdct_spec;
55
56 pstr_psy_out_ch->ptr_sfb_energy = pstr_grouped_sfb_nrg->long_nrg;
57 pstr_psy_out_ch->ptr_sfb_thr = pstr_grouped_sfb_thres->long_nrg;
58 pstr_psy_out_ch->ptr_sfb_spread_energy = pstr_grouped_sfb_spreaded_nrg->long_nrg;
59
60 memcpy(&pstr_psy_out_ch->sfb_offsets[0], &ptr_grouped_sfb_offset[0],
61 sizeof(pstr_psy_out_ch->sfb_offsets[0]) * (grouped_sfb_cnt + 1));
62 memcpy(&pstr_psy_out_ch->sfb_min_snr[0], &ptr_grouped_sfb_min_snr[0],
63 sizeof(pstr_psy_out_ch->sfb_min_snr[0]) * (grouped_sfb_cnt));
64
65 /* Generate grouping mask */
66 mask = 0;
67
68 for (grp = 0; grp < total_groups_cnt; grp++) {
69 mask <<= 1;
70
71 for (j = 1; j < ptr_group_len[grp]; j++) {
72 mask <<= 1;
73 mask |= 1;
74 }
75 }
76 /* copy energy sums to psy_out for stereo preprocessing */
77 if (win_seq != SHORT_WINDOW) {
78 pstr_psy_out_ch->sfb_sum_lr_energy = sfb_nrg_sum_lr.long_nrg;
79 pstr_psy_out_ch->sfb_sum_ms_energy = sfb_nrg_sum_ms.long_nrg;
80 } else {
81 int i;
82
83 pstr_psy_out_ch->sfb_sum_ms_energy = 0;
84 pstr_psy_out_ch->sfb_sum_lr_energy = 0;
85
86 for (i = 0; i < TRANS_FAC; i++) {
87 pstr_psy_out_ch->sfb_sum_lr_energy += sfb_nrg_sum_lr.short_nrg[i];
88 pstr_psy_out_ch->sfb_sum_ms_energy += sfb_nrg_sum_ms.short_nrg[i];
89 }
90 }
91
92 pstr_psy_out_ch->grouping_mask = mask;
93 }
94