2 * Bluetooth low-complexity, subband codec (SBC)
4 * Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
5 * Copyright (C) 2008-2010 Nokia Corporation
6 * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
7 * Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
8 * Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
10 * This file is part of FFmpeg.
12 * FFmpeg is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; either
15 * version 2.1 of the License, or (at your option) any later version.
17 * FFmpeg is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Lesser General Public License for more details.
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with FFmpeg; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 * miscellaneous SBC tables
32 #include "libavutil/mem_internal.h"
34 #include "sbcdsp_data.h"
36 #define F_PROTO(x) ((int32_t) (((x) * 2) * ((int32_t) 1 << 15) + 0.5))
37 #define F_COS(x) ((int32_t) (((x) ) * ((int32_t) 1 << 15) + 0.5))
40 * Constant tables for the use in SIMD optimized analysis filters
41 * Each table consists of two parts:
42 * 1. reordered "proto" table
43 * 2. reordered "cos" table
45 * Due to non-symmetrical reordering, separate tables for "even"
46 * and "odd" cases are needed
49 DECLARE_ALIGNED(SBC_ALIGN, const int16_t, ff_sbcdsp_analysis_consts_fixed4_simd_even)[40 + 16] = {
50 #define C0 1.0932568993
51 #define C1 1.3056875580
52 #define C2 1.3056875580
53 #define C3 1.6772280856
55 #define F(x) F_PROTO(x)
56 F(0.00000000E+00 * C0), F(3.83720193E-03 * C0),
57 F(5.36548976E-04 * C1), F(2.73370904E-03 * C1),
58 F(3.06012286E-03 * C2), F(3.89205149E-03 * C2),
59 F(0.00000000E+00 * C3), -F(1.49188357E-03 * C3),
60 F(1.09137620E-02 * C0), F(2.58767811E-02 * C0),
61 F(2.04385087E-02 * C1), F(3.21939290E-02 * C1),
62 F(7.76463494E-02 * C2), F(6.13245186E-03 * C2),
63 F(0.00000000E+00 * C3), -F(2.88757392E-02 * C3),
64 F(1.35593274E-01 * C0), F(2.94315332E-01 * C0),
65 F(1.94987841E-01 * C1), F(2.81828203E-01 * C1),
66 -F(1.94987841E-01 * C2), F(2.81828203E-01 * C2),
67 F(0.00000000E+00 * C3), -F(2.46636662E-01 * C3),
68 -F(1.35593274E-01 * C0), F(2.58767811E-02 * C0),
69 -F(7.76463494E-02 * C1), F(6.13245186E-03 * C1),
70 -F(2.04385087E-02 * C2), F(3.21939290E-02 * C2),
71 F(0.00000000E+00 * C3), F(2.88217274E-02 * C3),
72 -F(1.09137620E-02 * C0), F(3.83720193E-03 * C0),
73 -F(3.06012286E-03 * C1), F(3.89205149E-03 * C1),
74 -F(5.36548976E-04 * C2), F(2.73370904E-03 * C2),
75 F(0.00000000E+00 * C3), -F(1.86581691E-03 * C3),
78 F(0.7071067812 / C0), F(0.9238795325 / C1),
79 -F(0.7071067812 / C0), F(0.3826834324 / C1),
80 -F(0.7071067812 / C0), -F(0.3826834324 / C1),
81 F(0.7071067812 / C0), -F(0.9238795325 / C1),
82 F(0.3826834324 / C2), -F(1.0000000000 / C3),
83 -F(0.9238795325 / C2), -F(1.0000000000 / C3),
84 F(0.9238795325 / C2), -F(1.0000000000 / C3),
85 -F(0.3826834324 / C2), -F(1.0000000000 / C3),
94 DECLARE_ALIGNED(SBC_ALIGN, const int16_t, ff_sbcdsp_analysis_consts_fixed4_simd_odd)[40 + 16] = {
95 #define C0 1.3056875580
96 #define C1 1.6772280856
97 #define C2 1.0932568993
98 #define C3 1.3056875580
100 #define F(x) F_PROTO(x)
101 F(2.73370904E-03 * C0), F(5.36548976E-04 * C0),
102 -F(1.49188357E-03 * C1), F(0.00000000E+00 * C1),
103 F(3.83720193E-03 * C2), F(1.09137620E-02 * C2),
104 F(3.89205149E-03 * C3), F(3.06012286E-03 * C3),
105 F(3.21939290E-02 * C0), F(2.04385087E-02 * C0),
106 -F(2.88757392E-02 * C1), F(0.00000000E+00 * C1),
107 F(2.58767811E-02 * C2), F(1.35593274E-01 * C2),
108 F(6.13245186E-03 * C3), F(7.76463494E-02 * C3),
109 F(2.81828203E-01 * C0), F(1.94987841E-01 * C0),
110 -F(2.46636662E-01 * C1), F(0.00000000E+00 * C1),
111 F(2.94315332E-01 * C2), -F(1.35593274E-01 * C2),
112 F(2.81828203E-01 * C3), -F(1.94987841E-01 * C3),
113 F(6.13245186E-03 * C0), -F(7.76463494E-02 * C0),
114 F(2.88217274E-02 * C1), F(0.00000000E+00 * C1),
115 F(2.58767811E-02 * C2), -F(1.09137620E-02 * C2),
116 F(3.21939290E-02 * C3), -F(2.04385087E-02 * C3),
117 F(3.89205149E-03 * C0), -F(3.06012286E-03 * C0),
118 -F(1.86581691E-03 * C1), F(0.00000000E+00 * C1),
119 F(3.83720193E-03 * C2), F(0.00000000E+00 * C2),
120 F(2.73370904E-03 * C3), -F(5.36548976E-04 * C3),
122 #define F(x) F_COS(x)
123 F(0.9238795325 / C0), -F(1.0000000000 / C1),
124 F(0.3826834324 / C0), -F(1.0000000000 / C1),
125 -F(0.3826834324 / C0), -F(1.0000000000 / C1),
126 -F(0.9238795325 / C0), -F(1.0000000000 / C1),
127 F(0.7071067812 / C2), F(0.3826834324 / C3),
128 -F(0.7071067812 / C2), -F(0.9238795325 / C3),
129 -F(0.7071067812 / C2), F(0.9238795325 / C3),
130 F(0.7071067812 / C2), -F(0.3826834324 / C3),
139 DECLARE_ALIGNED(SBC_ALIGN, const int16_t, ff_sbcdsp_analysis_consts_fixed8_simd_even)[80 + 64] = {
140 #define C0 2.7906148894
141 #define C1 2.4270044280
142 #define C2 2.8015616024
143 #define C3 3.1710363741
144 #define C4 2.5377944043
145 #define C5 2.4270044280
146 #define C6 2.8015616024
147 #define C7 3.1710363741
149 #define F(x) F_PROTO(x)
150 F(0.00000000E+00 * C0), F(2.01182542E-03 * C0),
151 F(1.56575398E-04 * C1), F(1.78371725E-03 * C1),
152 F(3.43256425E-04 * C2), F(1.47640169E-03 * C2),
153 F(5.54620202E-04 * C3), F(1.13992507E-03 * C3),
154 -F(8.23919506E-04 * C4), F(0.00000000E+00 * C4),
155 F(2.10371989E-03 * C5), F(3.49717454E-03 * C5),
156 F(1.99454554E-03 * C6), F(1.64973098E-03 * C6),
157 F(1.61656283E-03 * C7), F(1.78805361E-04 * C7),
158 F(5.65949473E-03 * C0), F(1.29371806E-02 * C0),
159 F(8.02941163E-03 * C1), F(1.53184106E-02 * C1),
160 F(1.04584443E-02 * C2), F(1.62208471E-02 * C2),
161 F(1.27472335E-02 * C3), F(1.59045603E-02 * C3),
162 -F(1.46525263E-02 * C4), F(0.00000000E+00 * C4),
163 F(8.85757540E-03 * C5), F(5.31873032E-02 * C5),
164 F(2.92408442E-03 * C6), F(3.90751381E-02 * C6),
165 -F(4.91578024E-03 * C7), F(2.61098752E-02 * C7),
166 F(6.79989431E-02 * C0), F(1.46955068E-01 * C0),
167 F(8.29847578E-02 * C1), F(1.45389847E-01 * C1),
168 F(9.75753918E-02 * C2), F(1.40753505E-01 * C2),
169 F(1.11196689E-01 * C3), F(1.33264415E-01 * C3),
170 -F(1.23264548E-01 * C4), F(0.00000000E+00 * C4),
171 F(1.45389847E-01 * C5), -F(8.29847578E-02 * C5),
172 F(1.40753505E-01 * C6), -F(9.75753918E-02 * C6),
173 F(1.33264415E-01 * C7), -F(1.11196689E-01 * C7),
174 -F(6.79989431E-02 * C0), F(1.29371806E-02 * C0),
175 -F(5.31873032E-02 * C1), F(8.85757540E-03 * C1),
176 -F(3.90751381E-02 * C2), F(2.92408442E-03 * C2),
177 -F(2.61098752E-02 * C3), -F(4.91578024E-03 * C3),
178 F(1.46404076E-02 * C4), F(0.00000000E+00 * C4),
179 F(1.53184106E-02 * C5), -F(8.02941163E-03 * C5),
180 F(1.62208471E-02 * C6), -F(1.04584443E-02 * C6),
181 F(1.59045603E-02 * C7), -F(1.27472335E-02 * C7),
182 -F(5.65949473E-03 * C0), F(2.01182542E-03 * C0),
183 -F(3.49717454E-03 * C1), F(2.10371989E-03 * C1),
184 -F(1.64973098E-03 * C2), F(1.99454554E-03 * C2),
185 -F(1.78805361E-04 * C3), F(1.61656283E-03 * C3),
186 -F(9.02154502E-04 * C4), F(0.00000000E+00 * C4),
187 F(1.78371725E-03 * C5), -F(1.56575398E-04 * C5),
188 F(1.47640169E-03 * C6), -F(3.43256425E-04 * C6),
189 F(1.13992507E-03 * C7), -F(5.54620202E-04 * C7),
191 #define F(x) F_COS(x)
192 F(0.7071067812 / C0), F(0.8314696123 / C1),
193 -F(0.7071067812 / C0), -F(0.1950903220 / C1),
194 -F(0.7071067812 / C0), -F(0.9807852804 / C1),
195 F(0.7071067812 / C0), -F(0.5555702330 / C1),
196 F(0.7071067812 / C0), F(0.5555702330 / C1),
197 -F(0.7071067812 / C0), F(0.9807852804 / C1),
198 -F(0.7071067812 / C0), F(0.1950903220 / C1),
199 F(0.7071067812 / C0), -F(0.8314696123 / C1),
200 F(0.9238795325 / C2), F(0.9807852804 / C3),
201 F(0.3826834324 / C2), F(0.8314696123 / C3),
202 -F(0.3826834324 / C2), F(0.5555702330 / C3),
203 -F(0.9238795325 / C2), F(0.1950903220 / C3),
204 -F(0.9238795325 / C2), -F(0.1950903220 / C3),
205 -F(0.3826834324 / C2), -F(0.5555702330 / C3),
206 F(0.3826834324 / C2), -F(0.8314696123 / C3),
207 F(0.9238795325 / C2), -F(0.9807852804 / C3),
208 -F(1.0000000000 / C4), F(0.5555702330 / C5),
209 -F(1.0000000000 / C4), -F(0.9807852804 / C5),
210 -F(1.0000000000 / C4), F(0.1950903220 / C5),
211 -F(1.0000000000 / C4), F(0.8314696123 / C5),
212 -F(1.0000000000 / C4), -F(0.8314696123 / C5),
213 -F(1.0000000000 / C4), -F(0.1950903220 / C5),
214 -F(1.0000000000 / C4), F(0.9807852804 / C5),
215 -F(1.0000000000 / C4), -F(0.5555702330 / C5),
216 F(0.3826834324 / C6), F(0.1950903220 / C7),
217 -F(0.9238795325 / C6), -F(0.5555702330 / C7),
218 F(0.9238795325 / C6), F(0.8314696123 / C7),
219 -F(0.3826834324 / C6), -F(0.9807852804 / C7),
220 -F(0.3826834324 / C6), F(0.9807852804 / C7),
221 F(0.9238795325 / C6), -F(0.8314696123 / C7),
222 -F(0.9238795325 / C6), F(0.5555702330 / C7),
223 F(0.3826834324 / C6), -F(0.1950903220 / C7),
236 DECLARE_ALIGNED(SBC_ALIGN, const int16_t, ff_sbcdsp_analysis_consts_fixed8_simd_odd)[80 + 64] = {
237 #define C0 2.5377944043
238 #define C1 2.4270044280
239 #define C2 2.8015616024
240 #define C3 3.1710363741
241 #define C4 2.7906148894
242 #define C5 2.4270044280
243 #define C6 2.8015616024
244 #define C7 3.1710363741
246 #define F(x) F_PROTO(x)
247 F(0.00000000E+00 * C0), -F(8.23919506E-04 * C0),
248 F(1.56575398E-04 * C1), F(1.78371725E-03 * C1),
249 F(3.43256425E-04 * C2), F(1.47640169E-03 * C2),
250 F(5.54620202E-04 * C3), F(1.13992507E-03 * C3),
251 F(2.01182542E-03 * C4), F(5.65949473E-03 * C4),
252 F(2.10371989E-03 * C5), F(3.49717454E-03 * C5),
253 F(1.99454554E-03 * C6), F(1.64973098E-03 * C6),
254 F(1.61656283E-03 * C7), F(1.78805361E-04 * C7),
255 F(0.00000000E+00 * C0), -F(1.46525263E-02 * C0),
256 F(8.02941163E-03 * C1), F(1.53184106E-02 * C1),
257 F(1.04584443E-02 * C2), F(1.62208471E-02 * C2),
258 F(1.27472335E-02 * C3), F(1.59045603E-02 * C3),
259 F(1.29371806E-02 * C4), F(6.79989431E-02 * C4),
260 F(8.85757540E-03 * C5), F(5.31873032E-02 * C5),
261 F(2.92408442E-03 * C6), F(3.90751381E-02 * C6),
262 -F(4.91578024E-03 * C7), F(2.61098752E-02 * C7),
263 F(0.00000000E+00 * C0), -F(1.23264548E-01 * C0),
264 F(8.29847578E-02 * C1), F(1.45389847E-01 * C1),
265 F(9.75753918E-02 * C2), F(1.40753505E-01 * C2),
266 F(1.11196689E-01 * C3), F(1.33264415E-01 * C3),
267 F(1.46955068E-01 * C4), -F(6.79989431E-02 * C4),
268 F(1.45389847E-01 * C5), -F(8.29847578E-02 * C5),
269 F(1.40753505E-01 * C6), -F(9.75753918E-02 * C6),
270 F(1.33264415E-01 * C7), -F(1.11196689E-01 * C7),
271 F(0.00000000E+00 * C0), F(1.46404076E-02 * C0),
272 -F(5.31873032E-02 * C1), F(8.85757540E-03 * C1),
273 -F(3.90751381E-02 * C2), F(2.92408442E-03 * C2),
274 -F(2.61098752E-02 * C3), -F(4.91578024E-03 * C3),
275 F(1.29371806E-02 * C4), -F(5.65949473E-03 * C4),
276 F(1.53184106E-02 * C5), -F(8.02941163E-03 * C5),
277 F(1.62208471E-02 * C6), -F(1.04584443E-02 * C6),
278 F(1.59045603E-02 * C7), -F(1.27472335E-02 * C7),
279 F(0.00000000E+00 * C0), -F(9.02154502E-04 * C0),
280 -F(3.49717454E-03 * C1), F(2.10371989E-03 * C1),
281 -F(1.64973098E-03 * C2), F(1.99454554E-03 * C2),
282 -F(1.78805361E-04 * C3), F(1.61656283E-03 * C3),
283 F(2.01182542E-03 * C4), F(0.00000000E+00 * C4),
284 F(1.78371725E-03 * C5), -F(1.56575398E-04 * C5),
285 F(1.47640169E-03 * C6), -F(3.43256425E-04 * C6),
286 F(1.13992507E-03 * C7), -F(5.54620202E-04 * C7),
288 #define F(x) F_COS(x)
289 -F(1.0000000000 / C0), F(0.8314696123 / C1),
290 -F(1.0000000000 / C0), -F(0.1950903220 / C1),
291 -F(1.0000000000 / C0), -F(0.9807852804 / C1),
292 -F(1.0000000000 / C0), -F(0.5555702330 / C1),
293 -F(1.0000000000 / C0), F(0.5555702330 / C1),
294 -F(1.0000000000 / C0), F(0.9807852804 / C1),
295 -F(1.0000000000 / C0), F(0.1950903220 / C1),
296 -F(1.0000000000 / C0), -F(0.8314696123 / C1),
297 F(0.9238795325 / C2), F(0.9807852804 / C3),
298 F(0.3826834324 / C2), F(0.8314696123 / C3),
299 -F(0.3826834324 / C2), F(0.5555702330 / C3),
300 -F(0.9238795325 / C2), F(0.1950903220 / C3),
301 -F(0.9238795325 / C2), -F(0.1950903220 / C3),
302 -F(0.3826834324 / C2), -F(0.5555702330 / C3),
303 F(0.3826834324 / C2), -F(0.8314696123 / C3),
304 F(0.9238795325 / C2), -F(0.9807852804 / C3),
305 F(0.7071067812 / C4), F(0.5555702330 / C5),
306 -F(0.7071067812 / C4), -F(0.9807852804 / C5),
307 -F(0.7071067812 / C4), F(0.1950903220 / C5),
308 F(0.7071067812 / C4), F(0.8314696123 / C5),
309 F(0.7071067812 / C4), -F(0.8314696123 / C5),
310 -F(0.7071067812 / C4), -F(0.1950903220 / C5),
311 -F(0.7071067812 / C4), F(0.9807852804 / C5),
312 F(0.7071067812 / C4), -F(0.5555702330 / C5),
313 F(0.3826834324 / C6), F(0.1950903220 / C7),
314 -F(0.9238795325 / C6), -F(0.5555702330 / C7),
315 F(0.9238795325 / C6), F(0.8314696123 / C7),
316 -F(0.3826834324 / C6), -F(0.9807852804 / C7),
317 -F(0.3826834324 / C6), F(0.9807852804 / C7),
318 F(0.9238795325 / C6), -F(0.8314696123 / C7),
319 -F(0.9238795325 / C6), F(0.5555702330 / C7),
320 F(0.3826834324 / C6), -F(0.1950903220 / C7),