FFmpeg
aacps_fixed_tablegen.h
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1 /*
2  * Header file for hardcoded Parametric Stereo tables
3  *
4  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  *
22  * Note: Rounding-to-nearest used unless otherwise stated
23  *
24  */
25 
26 #ifndef AVCODEC_AACPS_FIXED_TABLEGEN_H
27 #define AVCODEC_AACPS_FIXED_TABLEGEN_H
28 
29 #include <math.h>
30 #include <stdint.h>
31 
32 #if CONFIG_HARDCODED_TABLES
33 #define ps_tableinit()
34 #define TABLE_CONST const
35 #include "libavcodec/aacps_fixed_tables.h"
36 #else
37 #include "libavutil/common.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/mem.h"
40 #include "libavutil/mem_internal.h"
41 
42 #include "aac_defines.h"
43 #include "libavutil/softfloat.h"
44 #define NR_ALLPASS_BANDS20 30
45 #define NR_ALLPASS_BANDS34 50
46 #define PS_AP_LINKS 3
47 #define TABLE_CONST
48 static int pd_re_smooth[8*8*8];
49 static int pd_im_smooth[8*8*8];
50 static int HA[46][8][4];
51 static int HB[46][8][4];
52 static DECLARE_ALIGNED(16, int, f20_0_8) [ 8][8][2];
53 static DECLARE_ALIGNED(16, int, f34_0_12)[12][8][2];
54 static DECLARE_ALIGNED(16, int, f34_1_8) [ 8][8][2];
55 static DECLARE_ALIGNED(16, int, f34_2_4) [ 4][8][2];
56 static TABLE_CONST DECLARE_ALIGNED(16, int, Q_fract_allpass)[2][50][3][2];
57 static DECLARE_ALIGNED(16, int, phi_fract)[2][50][2];
58 
59 static const int g0_Q8[] = {
60  Q31(0.00746082949812f), Q31(0.02270420949825f), Q31(0.04546865930473f), Q31(0.07266113929591f),
61  Q31(0.09885108575264f), Q31(0.11793710567217f), Q31(0.125f)
62 };
63 
64 static const int g0_Q12[] = {
65  Q31(0.04081179924692f), Q31(0.03812810994926f), Q31(0.05144908135699f), Q31(0.06399831151592f),
66  Q31(0.07428313801106f), Q31(0.08100347892914f), Q31(0.08333333333333f)
67 };
68 
69 static const int g1_Q8[] = {
70  Q31(0.01565675600122f), Q31(0.03752716391991f), Q31(0.05417891378782f), Q31(0.08417044116767f),
71  Q31(0.10307344158036f), Q31(0.12222452249753f), Q31(0.125f)
72 };
73 
74 static const int g2_Q4[] = {
75  Q31(-0.05908211155639f), Q31(-0.04871498374946f), Q31(0.0f), Q31(0.07778723915851f),
76  Q31( 0.16486303567403f), Q31( 0.23279856662996f), Q31(0.25f)
77 };
78 
79 static const int sintbl_4[4] = { 0, 1073741824, 0, -1073741824 };
80 static const int costbl_4[4] = { 1073741824, 0, -1073741824, 0 };
81 static const int sintbl_8[8] = { 0, 759250125, 1073741824, 759250125,
82  0, -759250125, -1073741824, -759250125 };
83 static const int costbl_8[8] = { 1073741824, 759250125, 0, -759250125,
84  -1073741824, -759250125, 0, 759250125 };
85 static const int sintbl_12[12] = { 0, 536870912, 929887697, 1073741824,
86  929887697, 536870912, 0, -536870912,
87  -929887697, -1073741824, -929887697, -536870912 };
88 static const int costbl_12[12] = { 1073741824, 929887697, 536870912, 0,
89  -536870912, -929887697, -1073741824, -929887697,
90  -536870912, 0, 536870912, 929887697 };
91 
92 static void make_filters_from_proto(int (*filter)[8][2], const int *proto, int bands)
93 {
94 
95  const int *sinptr, *cosptr;
96  int s, c, sinhalf, coshalf;
97  int q, n;
98 
99  if (bands == 4) {
100  sinptr = sintbl_4;
101  cosptr = costbl_4;
102  sinhalf = 759250125;
103  coshalf = 759250125;
104  } else if (bands == 8) {
105  sinptr = sintbl_8;
106  cosptr = costbl_8;
107  sinhalf = 410903207;
108  coshalf = 992008094;
109  } else {
110  sinptr = sintbl_12;
111  cosptr = costbl_12;
112  sinhalf = 277904834;
113  coshalf = 1037154959;
114  }
115 
116  for (q = 0; q < bands; q++) {
117  for (n = 0; n < 7; n++) {
118  int theta = (q*(n-6) + (n>>1) - 3) % bands;
119 
120  if (theta < 0)
121  theta += bands;
122  s = sinptr[theta];
123  c = cosptr[theta];
124 
125  if (n & 1) {
126  theta = (int)(((int64_t)c * coshalf - (int64_t)s * sinhalf + 0x20000000) >> 30);
127  s = (int)(((int64_t)s * coshalf + (int64_t)c * sinhalf + 0x20000000) >> 30);
128  c = theta;
129  }
130  filter[q][n][0] = (int)(((int64_t)proto[n] * c + 0x20000000) >> 30);
131  filter[q][n][1] = -(int)(((int64_t)proto[n] * s + 0x20000000) >> 30);
132  }
133  }
134 }
135 
136 static void ps_tableinit(void)
137 {
138  static const int ipdopd_sin[] = { Q30(0), Q30(M_SQRT1_2), Q30(1), Q30( M_SQRT1_2), Q30( 0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2) };
139  static const int ipdopd_cos[] = { Q30(1), Q30(M_SQRT1_2), Q30(0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2), Q30( 0), Q30( M_SQRT1_2) };
140  int pd0, pd1, pd2;
141  int idx;
142 
143  static const int alpha_tab[] =
144  {
145  Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
146  Q30(1.4455626011f/M_PI), Q30(1.4531552792f/M_PI), Q30(1.4648091793f/M_PI), Q30(1.4945238829f/M_PI), Q30(1.5239057541f/M_PI), Q30(1.5644006729f/M_PI),
147  Q30(1.3738563061f/M_PI), Q30(1.3851221800f/M_PI), Q30(1.4026404619f/M_PI), Q30(1.4484288692f/M_PI), Q30(1.4949874878f/M_PI), Q30(1.5604078770f/M_PI),
148  Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
149  Q30(1.1507037878f/M_PI), Q30(1.1669205427f/M_PI), Q30(1.1938756704f/M_PI), Q30(1.2754167318f/M_PI), Q30(1.3761177063f/M_PI), Q30(1.5429240465f/M_PI),
150  Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
151  Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
152  Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
153  Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
154  Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
155  Q30(0.4200925827f/M_PI), Q30(0.4038758278f/M_PI), Q30(0.3769206405f/M_PI), Q30(0.2953795493f/M_PI), Q30(0.1946786791f/M_PI), Q30(0.0278722942f/M_PI),
156  Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
157  Q30(0.1969399750f/M_PI), Q30(0.1856741160f/M_PI), Q30(0.1681558639f/M_PI), Q30(0.1223674342f/M_PI), Q30(0.0758088827f/M_PI), Q30(0.0103884479f/M_PI),
158  Q30(0.1252337098f/M_PI), Q30(0.1176410317f/M_PI), Q30(0.1059871912f/M_PI), Q30(0.0762724727f/M_PI), Q30(0.0468905345f/M_PI), Q30(0.0063956482f/M_PI),
159  Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
160  Q30(1.5676341057f/M_PI), Q30(1.5678333044f/M_PI), Q30(1.5681363344f/M_PI), Q30(1.5688960552f/M_PI), Q30(1.5696337223f/M_PI), Q30(1.5706381798f/M_PI),
161  Q30(1.5651730299f/M_PI), Q30(1.5655272007f/M_PI), Q30(1.5660660267f/M_PI), Q30(1.5674170256f/M_PI), Q30(1.5687289238f/M_PI), Q30(1.5705151558f/M_PI),
162  Q30(1.5607966185f/M_PI), Q30(1.5614265203f/M_PI), Q30(1.5623844862f/M_PI), Q30(1.5647867918f/M_PI), Q30(1.5671195984f/M_PI), Q30(1.5702962875f/M_PI),
163  Q30(1.5530153513f/M_PI), Q30(1.5541347265f/M_PI), Q30(1.5558375120f/M_PI), Q30(1.5601085424f/M_PI), Q30(1.5642569065f/M_PI), Q30(1.5699069500f/M_PI),
164  Q30(1.5391840935f/M_PI), Q30(1.5411708355f/M_PI), Q30(1.5441943407f/M_PI), Q30(1.5517836809f/M_PI), Q30(1.5591609478f/M_PI), Q30(1.5692136288f/M_PI),
165  Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
166  Q30(1.4915299416f/M_PI), Q30(1.4964480400f/M_PI), Q30(1.5039558411f/M_PI), Q30(1.5229074955f/M_PI), Q30(1.5414420366f/M_PI), Q30(1.5667995214f/M_PI),
167  Q30(1.4590617418f/M_PI), Q30(1.4658898115f/M_PI), Q30(1.4763505459f/M_PI), Q30(1.5029321909f/M_PI), Q30(1.5291173458f/M_PI), Q30(1.5651149750f/M_PI),
168  Q30(1.4136143923f/M_PI), Q30(1.4229322672f/M_PI), Q30(1.4373078346f/M_PI), Q30(1.4743183851f/M_PI), Q30(1.5113102198f/M_PI), Q30(1.5626684427f/M_PI),
169  Q30(1.3505556583f/M_PI), Q30(1.3628427982f/M_PI), Q30(1.3820509911f/M_PI), Q30(1.4327841997f/M_PI), Q30(1.4850014448f/M_PI), Q30(1.5590143204f/M_PI),
170  Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
171  Q30(1.1919227839f/M_PI), Q30(1.2081253529f/M_PI), Q30(1.2346779108f/M_PI), Q30(1.3123005629f/M_PI), Q30(1.4034168720f/M_PI), Q30(1.5471596718f/M_PI),
172  Q30(1.1061993837f/M_PI), Q30(1.1219338179f/M_PI), Q30(1.1484941244f/M_PI), Q30(1.2320860624f/M_PI), Q30(1.3421301842f/M_PI), Q30(1.5373806953f/M_PI),
173  Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
174  Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
175  Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
176  Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
177  Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
178  Q30(0.4645969570f/M_PI), Q30(0.4488625824f/M_PI), Q30(0.4223022461f/M_PI), Q30(0.3387103081f/M_PI), Q30(0.2286661267f/M_PI), Q30(0.0334156826f/M_PI),
179  Q30(0.3788735867f/M_PI), Q30(0.3626709878f/M_PI), Q30(0.3361184299f/M_PI), Q30(0.2584958076f/M_PI), Q30(0.1673794836f/M_PI), Q30(0.0236366931f/M_PI),
180  Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
181  Q30(0.2202406377f/M_PI), Q30(0.2079535723f/M_PI), Q30(0.1887452900f/M_PI), Q30(0.1380121708f/M_PI), Q30(0.0857949182f/M_PI), Q30(0.0117820343f/M_PI),
182  Q30(0.1571819335f/M_PI), Q30(0.1478640437f/M_PI), Q30(0.1334884763f/M_PI), Q30(0.0964778885f/M_PI), Q30(0.0594860613f/M_PI), Q30(0.0081279324f/M_PI),
183  Q30(0.1117345318f/M_PI), Q30(0.1049065739f/M_PI), Q30(0.0944457650f/M_PI), Q30(0.0678641573f/M_PI), Q30(0.0416790098f/M_PI), Q30(0.0056813755f/M_PI),
184  Q30(0.0792663917f/M_PI), Q30(0.0743482932f/M_PI), Q30(0.0668405443f/M_PI), Q30(0.0478888862f/M_PI), Q30(0.0293543357f/M_PI), Q30(0.0039967746f/M_PI),
185  Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
186  Q30(0.0316122435f/M_PI), Q30(0.0296254847f/M_PI), Q30(0.0266019460f/M_PI), Q30(0.0190126132f/M_PI), Q30(0.0116353342f/M_PI), Q30(0.0015827164f/M_PI),
187  Q30(0.0177809205f/M_PI), Q30(0.0166615788f/M_PI), Q30(0.0149587989f/M_PI), Q30(0.0106877899f/M_PI), Q30(0.0065393616f/M_PI), Q30(0.0008894200f/M_PI),
188  Q30(0.0099996664f/M_PI), Q30(0.0093698399f/M_PI), Q30(0.0084118480f/M_PI), Q30(0.0060095116f/M_PI), Q30(0.0036767013f/M_PI), Q30(0.0005000498f/M_PI),
189  Q30(0.0056233541f/M_PI), Q30(0.0052691097f/M_PI), Q30(0.0047303112f/M_PI), Q30(0.0033792770f/M_PI), Q30(0.0020674451f/M_PI), Q30(0.0002811795f/M_PI),
190  Q30(0.0031622672f/M_PI), Q30(0.0029630491f/M_PI), Q30(0.0026600463f/M_PI), Q30(0.0019002859f/M_PI), Q30(0.0011625893f/M_PI), Q30(0.0001581155f/M_PI)
191  };
192 
193  static const int gamma_tab[] =
194  {
195  Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
196  Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
197  Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
198  Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
199  Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
200  Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
201  Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
202  Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
203  Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
204  Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
205  Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
206  Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
207  Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
208  Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
209  Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
210  Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI),
211  Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
212  Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
213  Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
214  Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
215  Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
216  Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
217  Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
218  Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
219  Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
220  Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
221  Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
222  Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
223  Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
224  Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
225  Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
226  Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
227  Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
228  Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
229  Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
230  Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
231  Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
232  Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
233  Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
234  Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
235  Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
236  Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
237  Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
238  Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
239  Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
240  Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI)
241  };
242 
243  static const int iid_par_dequant_c1[] = {
244  //iid_par_dequant_default
245  Q30(1.41198278375959f), Q30(1.40313815268360f), Q30(1.38687670404960f), Q30(1.34839972492648f),
246  Q30(1.29124937110028f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
247  Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.57677990744575f), Q30(0.42640143271122f),
248  Q30(0.27671828230984f), Q30(0.17664462766713f), Q30(0.07940162697653f),
249  //iid_par_dequant_fine
250  Q30(1.41420649135832f), Q30(1.41419120222364f), Q30(1.41414285699784f), Q30(1.41399000859438f),
251  Q30(1.41350698548044f), Q30(1.41198278375959f), Q30(1.40977302262355f), Q30(1.40539479488545f),
252  Q30(1.39677960498402f), Q30(1.38005309967827f), Q30(1.34839972492648f), Q30(1.31392017367631f),
253  Q30(1.26431008149654f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
254  Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.63365607219232f), Q30(0.52308104267543f),
255  Q30(0.42640143271122f), Q30(0.30895540465965f), Q30(0.22137464873077f), Q30(0.15768788954414f),
256  Q30(0.11198225164225f), Q30(0.07940162697653f), Q30(0.04469901562677f), Q30(0.02514469318284f),
257  Q30(0.01414142856998f), Q30(0.00795258154731f), Q30(0.00447211359449f),
258  };
259 
260  static const int acos_icc_invq[] = {
261  Q31(0), Q31(0.178427635f/M_PI), Q31(0.28566733f/M_PI), Q31(0.46307236f/M_PI), Q31(0.59716315f/M_PI), Q31(0.78539816f/M_PI), Q31(1.10030855f/M_PI), Q31(1.57079633f/M_PI)
262  };
263  int iid, icc;
264 
265  int k, m;
266  static const int8_t f_center_20[] = {
267  -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
268  };
269  static const int32_t f_center_34[] = {
270  Q31( 2/768.0),Q31( 6/768.0),Q31(10/768.0),Q31(14/768.0),Q31( 18/768.0),Q31( 22/768.0),Q31( 26/768.0),Q31(30/768.0),
271  Q31( 34/768.0),Q31(-10/768.0),Q31(-6/768.0),Q31(-2/768.0),Q31( 51/768.0),Q31( 57/768.0),Q31( 15/768.0),Q31(21/768.0),
272  Q31( 27/768.0),Q31( 33/768.0),Q31(39/768.0),Q31(45/768.0),Q31( 54/768.0),Q31( 66/768.0),Q31( 78/768.0),Q31(42/768.0),
273  Q31(102/768.0),Q31( 66/768.0),Q31(78/768.0),Q31(90/768.0),Q31(102/768.0),Q31(114/768.0),Q31(126/768.0),Q31(90/768.0)
274  };
275  static const int fractional_delay_links[] = { Q31(0.43f), Q31(0.75f), Q31(0.347f) };
276  const int fractional_delay_gain = Q31(0.39f);
277 
278  for (pd0 = 0; pd0 < 8; pd0++) {
279  int pd0_re = (ipdopd_cos[pd0]+2)>>2;
280  int pd0_im = (ipdopd_sin[pd0]+2)>>2;
281  for (pd1 = 0; pd1 < 8; pd1++) {
282  int pd1_re = ipdopd_cos[pd1] >> 1;
283  int pd1_im = ipdopd_sin[pd1] >> 1;
284  for (pd2 = 0; pd2 < 8; pd2++) {
285  int shift, round;
286  int pd2_re = ipdopd_cos[pd2];
287  int pd2_im = ipdopd_sin[pd2];
288  int re_smooth = pd0_re + pd1_re + pd2_re;
289  int im_smooth = pd0_im + pd1_im + pd2_im;
290 
291  SoftFloat pd_mag = av_int2sf(((ipdopd_cos[(pd0-pd1)&7]+8)>>4) + ((ipdopd_cos[(pd0-pd2)&7]+4)>>3) +
292  ((ipdopd_cos[(pd1-pd2)&7]+2)>>2) + 0x15000000, 28);
293  pd_mag = av_div_sf(FLOAT_1, av_sqrt_sf(pd_mag));
294  shift = 30 - pd_mag.exp;
295  round = 1 << (shift-1);
296  pd_re_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)re_smooth * pd_mag.mant + round) >> shift);
297  pd_im_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)im_smooth * pd_mag.mant + round) >> shift);
298  }
299  }
300  }
301 
302  idx = 0;
303  for (iid = 0; iid < 46; iid++) {
304  int c1, c2;
305 
306  c1 = iid_par_dequant_c1[iid];
307  if (iid < 15)
308  c2 = iid_par_dequant_c1[14-iid];
309  else
310  c2 = iid_par_dequant_c1[60-iid];
311 
312  for (icc = 0; icc < 8; icc++) {
313  /*if (PS_BASELINE || ps->icc_mode < 3)*/{
314  int alpha, beta;
315  int ca, sa, cb, sb;
316 
317  alpha = acos_icc_invq[icc];
318  beta = (int)(((int64_t)alpha * 1518500250 + 0x40000000) >> 31);
319  alpha >>= 1;
320  beta = (int)(((int64_t)beta * (c1 - c2) + 0x40000000) >> 31);
321  av_sincos_sf(beta + alpha, &sa, &ca);
322  av_sincos_sf(beta - alpha, &sb, &cb);
323 
324  HA[iid][icc][0] = (int)(((int64_t)c2 * ca + 0x20000000) >> 30);
325  HA[iid][icc][1] = (int)(((int64_t)c1 * cb + 0x20000000) >> 30);
326  HA[iid][icc][2] = (int)(((int64_t)c2 * sa + 0x20000000) >> 30);
327  HA[iid][icc][3] = (int)(((int64_t)c1 * sb + 0x20000000) >> 30);
328  } /* else */ {
329  int alpha_int, gamma_int;
330  int alpha_c_int, alpha_s_int, gamma_c_int, gamma_s_int;
331 
332  alpha_int = alpha_tab[idx];
333  gamma_int = gamma_tab[idx];
334 
335  av_sincos_sf(alpha_int, &alpha_s_int, &alpha_c_int);
336  av_sincos_sf(gamma_int, &gamma_s_int, &gamma_c_int);
337 
338  alpha_c_int = (int)(((int64_t)alpha_c_int * 1518500250 + 0x20000000) >> 30);
339  alpha_s_int = (int)(((int64_t)alpha_s_int * 1518500250 + 0x20000000) >> 30);
340 
341  HB[iid][icc][0] = (int)(((int64_t)alpha_c_int * gamma_c_int + 0x20000000) >> 30);
342  HB[iid][icc][1] = (int)(((int64_t)alpha_s_int * gamma_c_int + 0x20000000) >> 30);
343  HB[iid][icc][2] = -(int)(((int64_t)alpha_s_int * gamma_s_int + 0x20000000) >> 30);
344  HB[iid][icc][3] = (int)(((int64_t)alpha_c_int * gamma_s_int + 0x20000000) >> 30);
345  }
346 
347  if (icc < 5 || icc > 6)
348  idx++;
349  }
350  }
351 
352  for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
353  int theta;
354  int64_t f_center;
355  int c, s;
356 
357  if (k < FF_ARRAY_ELEMS(f_center_20))
358  f_center = f_center_20[k];
359  else
360  f_center = (k << 3) - 52;
361 
362  for (m = 0; m < PS_AP_LINKS; m++) {
363  theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 8) >> 4);
364  av_sincos_sf(-theta, &s, &c);
365  Q_fract_allpass[0][k][m][0] = c;
366  Q_fract_allpass[0][k][m][1] = s;
367  }
368 
369  theta = (int)(((int64_t)fractional_delay_gain * f_center + 8) >> 4);
370  av_sincos_sf(-theta, &s, &c);
371  phi_fract[0][k][0] = c;
372  phi_fract[0][k][1] = s;
373  }
374 
375  for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
376  int theta, f_center;
377  int c, s;
378 
379  if (k < FF_ARRAY_ELEMS(f_center_34))
380  f_center = f_center_34[k];
381  else
382  f_center = ((int64_t)k << 26) - (53 << 25);
383 
384  for (m = 0; m < PS_AP_LINKS; m++) {
385  theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 0x10000000) >> 27);
386  av_sincos_sf(-theta, &s, &c);
387  Q_fract_allpass[1][k][m][0] = c;
388  Q_fract_allpass[1][k][m][1] = s;
389  }
390 
391  theta = (int)(((int64_t)fractional_delay_gain * f_center + 0x10000000) >> 27);
392  av_sincos_sf(-theta, &s, &c);
393  phi_fract[1][k][0] = c;
394  phi_fract[1][k][1] = s;
395  }
396 
397  make_filters_from_proto(f20_0_8, g0_Q8, 8);
398  make_filters_from_proto(f34_0_12, g0_Q12, 12);
399  make_filters_from_proto(f34_1_8, g1_Q8, 8);
400  make_filters_from_proto(f34_2_4, g2_Q4, 4);
401 }
402 #endif /* CONFIG_HARDCODED_TABLES */
403 
404 #endif /* AVCODEC_AACPS_FIXED_TABLEGEN_H */
av_sqrt_sf
static av_always_inline SoftFloat av_sqrt_sf(SoftFloat val)
Rounding-to-nearest used.
Definition: softfloat.h:207
g0_Q8
static const int g0_Q8[]
Definition: aacps_fixed_tablegen.h:59
shift
static int shift(int a, int b)
Definition: sonic.c:82
mem.h
Memory handling functions.
HA
static int HA[46][8][4]
Definition: aacps_fixed_tablegen.h:50
Q_fract_allpass
static TABLE_CONST int Q_fract_allpass[2][50][3][2]
Definition: aacps_fixed_tablegen.h:56
av_div_sf
static av_const SoftFloat av_div_sf(SoftFloat a, SoftFloat b)
b has to be normalized and not zero.
Definition: softfloat.h:116
M_SQRT1_2
#define M_SQRT1_2
Definition: mathematics.h:58
NR_ALLPASS_BANDS34
#define NR_ALLPASS_BANDS34
Definition: aacps_fixed_tablegen.h:45
cb
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:215
pd_im_smooth
static int pd_im_smooth[8 *8 *8]
Definition: aacps_fixed_tablegen.h:49
Q30
#define Q30(x)
Definition: aac_defines.h:97
f
#define f(width, name)
Definition: cbs_vp9.c:255
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
costbl_4
static const int costbl_4[4]
Definition: aacps_fixed_tablegen.h:80
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
c1
static const uint64_t c1
Definition: murmur3.c:51
SoftFloat::mant
int32_t mant
Definition: softfloat.h:35
f34_0_12
static int f34_0_12[12][8][2]
Definition: aacps_fixed_tablegen.h:53
g0_Q12
static const int g0_Q12[]
Definition: aacps_fixed_tablegen.h:64
TABLE_CONST
#define TABLE_CONST
Definition: aacps_fixed_tablegen.h:47
make_filters_from_proto
static void make_filters_from_proto(int(*filter)[8][2], const int *proto, int bands)
Definition: aacps_fixed_tablegen.h:92
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
FLOAT_1
static const SoftFloat FLOAT_1
1.0
Definition: softfloat.h:41
sintbl_12
static const int sintbl_12[12]
Definition: aacps_fixed_tablegen.h:85
round
static av_always_inline av_const double round(double x)
Definition: libm.h:444
aac_defines.h
phi_fract
static int phi_fract[2][50][2]
Definition: aacps_fixed_tablegen.h:57
av_sincos_sf
static av_unused void av_sincos_sf(int a, int *s, int *c)
Rounding-to-nearest used.
Definition: softfloat.h:240
NR_ALLPASS_BANDS20
#define NR_ALLPASS_BANDS20
Definition: aacps_fixed_tablegen.h:44
f34_1_8
static int f34_1_8[8][8][2]
Definition: aacps_fixed_tablegen.h:54
Q31
#define Q31(x)
Definition: aac_defines.h:98
sintbl_8
static const int sintbl_8[8]
Definition: aacps_fixed_tablegen.h:81
sintbl_4
static const int sintbl_4[4]
Definition: aacps_fixed_tablegen.h:79
int32_t
int32_t
Definition: audio_convert.c:194
s
#define s(width, name)
Definition: cbs_vp9.c:257
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen_template.c:37
HB
static int HB[46][8][4]
Definition: aacps_fixed_tablegen.h:51
alpha
static const int16_t alpha[]
Definition: ilbcdata.h:55
bands
static const float bands[]
Definition: af_superequalizer.c:56
costbl_8
static const int costbl_8[8]
Definition: aacps_fixed_tablegen.h:83
ps_tableinit
static void ps_tableinit(void)
Definition: aacps_fixed_tablegen.h:136
costbl_12
static const int costbl_12[12]
Definition: aacps_fixed_tablegen.h:88
g1_Q8
static const int g1_Q8[]
Definition: aacps_fixed_tablegen.h:69
int
int
Definition: ffmpeg_filter.c:193
common.h
common internal and external API header
c2
static const uint64_t c2
Definition: murmur3.c:52
SoftFloat::exp
int32_t exp
Definition: softfloat.h:36
pd_re_smooth
static int pd_re_smooth[8 *8 *8]
Definition: aacps_fixed_tablegen.h:48
f34_2_4
static int f34_2_4[4][8][2]
Definition: aacps_fixed_tablegen.h:55
av_int2sf
static av_const SoftFloat av_int2sf(int v, int frac_bits)
Converts a mantisse and exponent to a SoftFloat.
Definition: softfloat.h:185
f20_0_8
static int f20_0_8[8][8][2]
Definition: aacps_fixed_tablegen.h:52
M_PI
#define M_PI
Definition: mathematics.h:52
g2_Q4
static const int g2_Q4[]
Definition: aacps_fixed_tablegen.h:74
mem_internal.h
alpha_tab
static const uint8_t alpha_tab[64]
Definition: cavs.c:40
PS_AP_LINKS
#define PS_AP_LINKS
Definition: aacps_fixed_tablegen.h:46
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