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 #ifdef BUILD_TABLES
40 #undef DECLARE_ALIGNED
41 #define DECLARE_ALIGNED(align, type, variable) type variable
42 #else
43 #include "libavutil/mem_internal.h"
44 #endif
45 
46 #include "aac_defines.h"
47 #include "libavutil/softfloat.h"
48 #define NR_ALLPASS_BANDS20 30
49 #define NR_ALLPASS_BANDS34 50
50 #define PS_AP_LINKS 3
51 #define TABLE_CONST
52 static int pd_re_smooth[8*8*8];
53 static int pd_im_smooth[8*8*8];
54 static int HA[46][8][4];
55 static int HB[46][8][4];
56 static DECLARE_ALIGNED(16, int, f20_0_8) [ 8][8][2];
57 static DECLARE_ALIGNED(16, int, f34_0_12)[12][8][2];
58 static DECLARE_ALIGNED(16, int, f34_1_8) [ 8][8][2];
59 static DECLARE_ALIGNED(16, int, f34_2_4) [ 4][8][2];
60 static TABLE_CONST DECLARE_ALIGNED(16, int, Q_fract_allpass)[2][50][3][2];
61 static DECLARE_ALIGNED(16, int, phi_fract)[2][50][2];
62 
63 static const int g0_Q8[] = {
64  Q31(0.00746082949812f), Q31(0.02270420949825f), Q31(0.04546865930473f), Q31(0.07266113929591f),
65  Q31(0.09885108575264f), Q31(0.11793710567217f), Q31(0.125f)
66 };
67 
68 static const int g0_Q12[] = {
69  Q31(0.04081179924692f), Q31(0.03812810994926f), Q31(0.05144908135699f), Q31(0.06399831151592f),
70  Q31(0.07428313801106f), Q31(0.08100347892914f), Q31(0.08333333333333f)
71 };
72 
73 static const int g1_Q8[] = {
74  Q31(0.01565675600122f), Q31(0.03752716391991f), Q31(0.05417891378782f), Q31(0.08417044116767f),
75  Q31(0.10307344158036f), Q31(0.12222452249753f), Q31(0.125f)
76 };
77 
78 static const int g2_Q4[] = {
79  Q31(-0.05908211155639f), Q31(-0.04871498374946f), Q31(0.0f), Q31(0.07778723915851f),
80  Q31( 0.16486303567403f), Q31( 0.23279856662996f), Q31(0.25f)
81 };
82 
83 static const int sintbl_4[4] = { 0, 1073741824, 0, -1073741824 };
84 static const int costbl_4[4] = { 1073741824, 0, -1073741824, 0 };
85 static const int sintbl_8[8] = { 0, 759250125, 1073741824, 759250125,
86  0, -759250125, -1073741824, -759250125 };
87 static const int costbl_8[8] = { 1073741824, 759250125, 0, -759250125,
88  -1073741824, -759250125, 0, 759250125 };
89 static const int sintbl_12[12] = { 0, 536870912, 929887697, 1073741824,
90  929887697, 536870912, 0, -536870912,
91  -929887697, -1073741824, -929887697, -536870912 };
92 static const int costbl_12[12] = { 1073741824, 929887697, 536870912, 0,
93  -536870912, -929887697, -1073741824, -929887697,
94  -536870912, 0, 536870912, 929887697 };
95 
96 static void make_filters_from_proto(int (*filter)[8][2], const int *proto, int bands)
97 {
98 
99  const int *sinptr, *cosptr;
100  int s, c, sinhalf, coshalf;
101  int q, n;
102 
103  if (bands == 4) {
104  sinptr = sintbl_4;
105  cosptr = costbl_4;
106  sinhalf = 759250125;
107  coshalf = 759250125;
108  } else if (bands == 8) {
109  sinptr = sintbl_8;
110  cosptr = costbl_8;
111  sinhalf = 410903207;
112  coshalf = 992008094;
113  } else {
114  sinptr = sintbl_12;
115  cosptr = costbl_12;
116  sinhalf = 277904834;
117  coshalf = 1037154959;
118  }
119 
120  for (q = 0; q < bands; q++) {
121  for (n = 0; n < 7; n++) {
122  int theta = (q*(n-6) + (n>>1) - 3) % bands;
123 
124  if (theta < 0)
125  theta += bands;
126  s = sinptr[theta];
127  c = cosptr[theta];
128 
129  if (n & 1) {
130  theta = (int)(((int64_t)c * coshalf - (int64_t)s * sinhalf + 0x20000000) >> 30);
131  s = (int)(((int64_t)s * coshalf + (int64_t)c * sinhalf + 0x20000000) >> 30);
132  c = theta;
133  }
134  filter[q][n][0] = (int)(((int64_t)proto[n] * c + 0x20000000) >> 30);
135  filter[q][n][1] = -(int)(((int64_t)proto[n] * s + 0x20000000) >> 30);
136  }
137  }
138 }
139 
140 static void ps_tableinit(void)
141 {
142  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) };
143  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) };
144  int pd0, pd1, pd2;
145  int idx;
146 
147  static const int alpha_tab[] =
148  {
149  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),
150  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),
151  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),
152  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),
153  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),
154  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),
155  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),
156  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),
157  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),
158  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),
159  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),
160  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),
161  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),
162  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),
163  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),
164  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),
165  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),
166  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),
167  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),
168  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),
169  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),
170  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),
171  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),
172  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),
173  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),
174  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),
175  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),
176  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),
177  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),
178  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),
179  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),
180  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),
181  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),
182  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),
183  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),
184  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),
185  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),
186  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),
187  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),
188  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),
189  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),
190  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),
191  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),
192  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),
193  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),
194  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)
195  };
196 
197  static const int gamma_tab[] =
198  {
199  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),
200  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),
201  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),
202  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),
203  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),
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(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
206  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),
207  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),
208  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),
209  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),
210  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),
211  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),
212  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),
213  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),
214  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),
215  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),
216  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),
217  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),
218  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),
219  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),
220  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),
221  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),
222  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),
223  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),
224  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),
225  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),
226  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),
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(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
229  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),
230  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),
231  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),
232  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),
233  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),
234  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),
235  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),
236  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),
237  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),
238  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),
239  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),
240  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),
241  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),
242  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),
243  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),
244  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)
245  };
246 
247  static const int iid_par_dequant_c1[] = {
248  //iid_par_dequant_default
249  Q30(1.41198278375959f), Q30(1.40313815268360f), Q30(1.38687670404960f), Q30(1.34839972492648f),
250  Q30(1.29124937110028f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
251  Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.57677990744575f), Q30(0.42640143271122f),
252  Q30(0.27671828230984f), Q30(0.17664462766713f), Q30(0.07940162697653f),
253  //iid_par_dequant_fine
254  Q30(1.41420649135832f), Q30(1.41419120222364f), Q30(1.41414285699784f), Q30(1.41399000859438f),
255  Q30(1.41350698548044f), Q30(1.41198278375959f), Q30(1.40977302262355f), Q30(1.40539479488545f),
256  Q30(1.39677960498402f), Q30(1.38005309967827f), Q30(1.34839972492648f), Q30(1.31392017367631f),
257  Q30(1.26431008149654f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
258  Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.63365607219232f), Q30(0.52308104267543f),
259  Q30(0.42640143271122f), Q30(0.30895540465965f), Q30(0.22137464873077f), Q30(0.15768788954414f),
260  Q30(0.11198225164225f), Q30(0.07940162697653f), Q30(0.04469901562677f), Q30(0.02514469318284f),
261  Q30(0.01414142856998f), Q30(0.00795258154731f), Q30(0.00447211359449f),
262  };
263 
264  static const int acos_icc_invq[] = {
265  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)
266  };
267  int iid, icc;
268 
269  int k, m;
270  static const int8_t f_center_20[] = {
271  -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
272  };
273  static const int32_t f_center_34[] = {
274  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),
275  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),
276  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),
277  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)
278  };
279  static const int fractional_delay_links[] = { Q31(0.43f), Q31(0.75f), Q31(0.347f) };
280  const int fractional_delay_gain = Q31(0.39f);
281 
282  for (pd0 = 0; pd0 < 8; pd0++) {
283  int pd0_re = (ipdopd_cos[pd0]+2)>>2;
284  int pd0_im = (ipdopd_sin[pd0]+2)>>2;
285  for (pd1 = 0; pd1 < 8; pd1++) {
286  int pd1_re = ipdopd_cos[pd1] >> 1;
287  int pd1_im = ipdopd_sin[pd1] >> 1;
288  for (pd2 = 0; pd2 < 8; pd2++) {
289  int shift, round;
290  int pd2_re = ipdopd_cos[pd2];
291  int pd2_im = ipdopd_sin[pd2];
292  int re_smooth = pd0_re + pd1_re + pd2_re;
293  int im_smooth = pd0_im + pd1_im + pd2_im;
294 
295  SoftFloat pd_mag = av_int2sf(((ipdopd_cos[(pd0-pd1)&7]+8)>>4) + ((ipdopd_cos[(pd0-pd2)&7]+4)>>3) +
296  ((ipdopd_cos[(pd1-pd2)&7]+2)>>2) + 0x15000000, 28);
297  pd_mag = av_div_sf(FLOAT_1, av_sqrt_sf(pd_mag));
298  shift = 30 - pd_mag.exp;
299  round = 1 << (shift-1);
300  pd_re_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)re_smooth * pd_mag.mant + round) >> shift);
301  pd_im_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)im_smooth * pd_mag.mant + round) >> shift);
302  }
303  }
304  }
305 
306  idx = 0;
307  for (iid = 0; iid < 46; iid++) {
308  int c1, c2;
309 
310  c1 = iid_par_dequant_c1[iid];
311  if (iid < 15)
312  c2 = iid_par_dequant_c1[14-iid];
313  else
314  c2 = iid_par_dequant_c1[60-iid];
315 
316  for (icc = 0; icc < 8; icc++) {
317  /*if (PS_BASELINE || ps->icc_mode < 3)*/{
318  int alpha, beta;
319  int ca, sa, cb, sb;
320 
321  alpha = acos_icc_invq[icc];
322  beta = (int)(((int64_t)alpha * 1518500250 + 0x40000000) >> 31);
323  alpha >>= 1;
324  beta = (int)(((int64_t)beta * (c1 - c2) + 0x40000000) >> 31);
325  av_sincos_sf(beta + alpha, &sa, &ca);
326  av_sincos_sf(beta - alpha, &sb, &cb);
327 
328  HA[iid][icc][0] = (int)(((int64_t)c2 * ca + 0x20000000) >> 30);
329  HA[iid][icc][1] = (int)(((int64_t)c1 * cb + 0x20000000) >> 30);
330  HA[iid][icc][2] = (int)(((int64_t)c2 * sa + 0x20000000) >> 30);
331  HA[iid][icc][3] = (int)(((int64_t)c1 * sb + 0x20000000) >> 30);
332  } /* else */ {
333  int alpha_int, gamma_int;
334  int alpha_c_int, alpha_s_int, gamma_c_int, gamma_s_int;
335 
336  alpha_int = alpha_tab[idx];
337  gamma_int = gamma_tab[idx];
338 
339  av_sincos_sf(alpha_int, &alpha_s_int, &alpha_c_int);
340  av_sincos_sf(gamma_int, &gamma_s_int, &gamma_c_int);
341 
342  alpha_c_int = (int)(((int64_t)alpha_c_int * 1518500250 + 0x20000000) >> 30);
343  alpha_s_int = (int)(((int64_t)alpha_s_int * 1518500250 + 0x20000000) >> 30);
344 
345  HB[iid][icc][0] = (int)(((int64_t)alpha_c_int * gamma_c_int + 0x20000000) >> 30);
346  HB[iid][icc][1] = (int)(((int64_t)alpha_s_int * gamma_c_int + 0x20000000) >> 30);
347  HB[iid][icc][2] = -(int)(((int64_t)alpha_s_int * gamma_s_int + 0x20000000) >> 30);
348  HB[iid][icc][3] = (int)(((int64_t)alpha_c_int * gamma_s_int + 0x20000000) >> 30);
349  }
350 
351  if (icc < 5 || icc > 6)
352  idx++;
353  }
354  }
355 
356  for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
357  int theta;
358  int64_t f_center;
359  int c, s;
360 
361  if (k < FF_ARRAY_ELEMS(f_center_20))
362  f_center = f_center_20[k];
363  else
364  f_center = (k << 3) - 52;
365 
366  for (m = 0; m < PS_AP_LINKS; m++) {
367  theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 8) >> 4);
368  av_sincos_sf(-theta, &s, &c);
369  Q_fract_allpass[0][k][m][0] = c;
370  Q_fract_allpass[0][k][m][1] = s;
371  }
372 
373  theta = (int)(((int64_t)fractional_delay_gain * f_center + 8) >> 4);
374  av_sincos_sf(-theta, &s, &c);
375  phi_fract[0][k][0] = c;
376  phi_fract[0][k][1] = s;
377  }
378 
379  for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
380  int theta, f_center;
381  int c, s;
382 
383  if (k < FF_ARRAY_ELEMS(f_center_34))
384  f_center = f_center_34[k];
385  else
386  f_center = ((int64_t)k << 26) - (53 << 25);
387 
388  for (m = 0; m < PS_AP_LINKS; m++) {
389  theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 0x10000000) >> 27);
390  av_sincos_sf(-theta, &s, &c);
391  Q_fract_allpass[1][k][m][0] = c;
392  Q_fract_allpass[1][k][m][1] = s;
393  }
394 
395  theta = (int)(((int64_t)fractional_delay_gain * f_center + 0x10000000) >> 27);
396  av_sincos_sf(-theta, &s, &c);
397  phi_fract[1][k][0] = c;
398  phi_fract[1][k][1] = s;
399  }
400 
401  make_filters_from_proto(f20_0_8, g0_Q8, 8);
402  make_filters_from_proto(f34_0_12, g0_Q12, 12);
403  make_filters_from_proto(f34_1_8, g1_Q8, 8);
404  make_filters_from_proto(f34_2_4, g2_Q4, 4);
405 }
406 #endif /* CONFIG_HARDCODED_TABLES */
407 
408 #endif /* AVCODEC_AACPS_FIXED_TABLEGEN_H */
TABLE_CONST
#define TABLE_CONST
Definition: aacps_fixed_tablegen.h:51
mem_internal.h
f34_2_4
static int f34_2_4[4][8][2]
Definition: aacps_fixed_tablegen.h:59
cb
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:215
costbl_12
static const int costbl_12[12]
Definition: aacps_fixed_tablegen.h:92
pd_im_smooth
static int pd_im_smooth[8 *8 *8]
Definition: aacps_fixed_tablegen.h:53
Q_fract_allpass
static TABLE_CONST int Q_fract_allpass[2][50][3][2]
Definition: aacps_fixed_tablegen.h:60
g0_Q8
static const int g0_Q8[]
Definition: aacps_fixed_tablegen.h:63
make_filters_from_proto
static void make_filters_from_proto(int(*filter)[8][2], const int *proto, int bands)
Definition: aacps_fixed_tablegen.h:96
f20_0_8
static int f20_0_8[8][8][2]
Definition: aacps_fixed_tablegen.h:56
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:57
mathematics.h
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
c1
static const uint64_t c1
Definition: murmur3.c:51
FLOAT_1
static const SoftFloat FLOAT_1
1.0
Definition: softfloat.h:41
PS_AP_LINKS
#define PS_AP_LINKS
Definition: aacps_fixed_tablegen.h:50
pd_re_smooth
static int pd_re_smooth[8 *8 *8]
Definition: aacps_fixed_tablegen.h:52
av_sqrt_sf
static av_always_inline SoftFloat av_sqrt_sf(SoftFloat val)
Rounding-to-nearest used.
Definition: softfloat.h:207
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
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
s
#define s(width, name)
Definition: cbs_vp9.c:257
bands
static const float bands[]
Definition: af_superequalizer.c:56
f
#define f(width, name)
Definition: cbs_vp9.c:255
HA
static int HA[46][8][4]
Definition: aacps_fixed_tablegen.h:54
sintbl_12
static const int sintbl_12[12]
Definition: aacps_fixed_tablegen.h:89
f34_1_8
static int f34_1_8[8][8][2]
Definition: aacps_fixed_tablegen.h:58
SoftFloat::exp
int32_t exp
Definition: softfloat.h:36
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
g0_Q12
static const int g0_Q12[]
Definition: aacps_fixed_tablegen.h:68
HB
static int HB[46][8][4]
Definition: aacps_fixed_tablegen.h:55
costbl_8
static const int costbl_8[8]
Definition: aacps_fixed_tablegen.h:87
costbl_4
static const int costbl_4[4]
Definition: aacps_fixed_tablegen.h:84
M_PI
#define M_PI
Definition: mathematics.h:52
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:116
SoftFloat
Definition: softfloat.h:34
round
static av_always_inline av_const double round(double x)
Definition: libm.h:444
g1_Q8
static const int g1_Q8[]
Definition: aacps_fixed_tablegen.h:73
sintbl_8
static const int sintbl_8[8]
Definition: aacps_fixed_tablegen.h:85
common.h
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
sintbl_4
static const int sintbl_4[4]
Definition: aacps_fixed_tablegen.h:83
M_SQRT1_2
#define M_SQRT1_2
Definition: mathematics.h:58
av_sincos_sf
static av_unused void av_sincos_sf(int a, int *s, int *c)
Rounding-to-nearest used.
Definition: softfloat.h:240
c2
static const uint64_t c2
Definition: murmur3.c:52
phi_fract
static int phi_fract[2][50][2]
Definition: aacps_fixed_tablegen.h:61
NR_ALLPASS_BANDS20
#define NR_ALLPASS_BANDS20
Definition: aacps_fixed_tablegen.h:48
ps_tableinit
static void ps_tableinit(void)
Definition: aacps_fixed_tablegen.h:140
Q31
#define Q31(x)
Definition: aac_defines.h:96
shift
static int shift(int a, int b)
Definition: sonic.c:83
g2_Q4
static const int g2_Q4[]
Definition: aacps_fixed_tablegen.h:78
alpha
static const int16_t alpha[]
Definition: ilbcdata.h:55
alpha_tab
static const uint8_t alpha_tab[64]
Definition: cavs.c:40
int32_t
int32_t
Definition: audioconvert.c:56
aac_defines.h
int
int
Definition: ffmpeg_filter.c:156
softfloat.h
Q30
#define Q30(x)
Definition: aac_defines.h:95
NR_ALLPASS_BANDS34
#define NR_ALLPASS_BANDS34
Definition: aacps_fixed_tablegen.h:49
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