3 * Bluetooth low-complexity, subband codec (SBC) library
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>
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 /* A2DP specification: Appendix B, page 69 */
28 static const int sbc_offset4[4][4] = {
35 /* A2DP specification: Appendix B, page 69 */
36 static const int sbc_offset8[4][8] = {
37 { -2, 0, 0, 0, 0, 0, 0, 1 },
38 { -3, 0, 0, 0, 0, 0, 1, 2 },
39 { -4, 0, 0, 0, 0, 0, 1, 2 },
40 { -4, 0, 0, 0, 0, 0, 1, 2 }
43 /* extra bits of precision for the synthesis filter input data */
44 #define SBCDEC_FIXED_EXTRA_BITS 2
46 #define SS4(val) ASR(val, SCALE_SPROTO4_TBL)
47 #define SS8(val) ASR(val, SCALE_SPROTO8_TBL)
48 #define SN4(val) ASR(val, SCALE_NPROTO4_TBL + 1 + SBCDEC_FIXED_EXTRA_BITS)
49 #define SN8(val) ASR(val, SCALE_NPROTO8_TBL + 1 + SBCDEC_FIXED_EXTRA_BITS)
51 static const int32_t sbc_proto_4_40m0[] = {
52 SS4(0x00000000), SS4(0xffa6982f), SS4(0xfba93848), SS4(0x0456c7b8),
53 SS4(0x005967d1), SS4(0xfffb9ac7), SS4(0xff589157), SS4(0xf9c2a8d8),
54 SS4(0x027c1434), SS4(0x0019118b), SS4(0xfff3c74c), SS4(0xff137330),
55 SS4(0xf81b8d70), SS4(0x00ec1b8b), SS4(0xfff0b71a), SS4(0xffe99b00),
56 SS4(0xfef84470), SS4(0xf6fb4370), SS4(0xffcdc351), SS4(0xffe01dc7)
59 static const int32_t sbc_proto_4_40m1[] = {
60 SS4(0xffe090ce), SS4(0xff2c0475), SS4(0xf694f800), SS4(0xff2c0475),
61 SS4(0xffe090ce), SS4(0xffe01dc7), SS4(0xffcdc351), SS4(0xf6fb4370),
62 SS4(0xfef84470), SS4(0xffe99b00), SS4(0xfff0b71a), SS4(0x00ec1b8b),
63 SS4(0xf81b8d70), SS4(0xff137330), SS4(0xfff3c74c), SS4(0x0019118b),
64 SS4(0x027c1434), SS4(0xf9c2a8d8), SS4(0xff589157), SS4(0xfffb9ac7)
67 static const int32_t sbc_proto_8_80m0[] = {
68 SS8(0x00000000), SS8(0xfe8d1970), SS8(0xee979f00), SS8(0x11686100),
69 SS8(0x0172e690), SS8(0xfff5bd1a), SS8(0xfdf1c8d4), SS8(0xeac182c0),
70 SS8(0x0d9daee0), SS8(0x00e530da), SS8(0xffe9811d), SS8(0xfd52986c),
71 SS8(0xe7054ca0), SS8(0x0a00d410), SS8(0x006c1de4), SS8(0xffdba705),
72 SS8(0xfcbc98e8), SS8(0xe3889d20), SS8(0x06af2308), SS8(0x000bb7db),
73 SS8(0xffca00ed), SS8(0xfc3fbb68), SS8(0xe071bc00), SS8(0x03bf7948),
74 SS8(0xffc4e05c), SS8(0xffb54b3b), SS8(0xfbedadc0), SS8(0xdde26200),
75 SS8(0x0142291c), SS8(0xff960e94), SS8(0xff9f3e17), SS8(0xfbd8f358),
76 SS8(0xdbf79400), SS8(0xff405e01), SS8(0xff7d4914), SS8(0xff8b1a31),
77 SS8(0xfc1417b8), SS8(0xdac7bb40), SS8(0xfdbb828c), SS8(0xff762170)
80 static const int32_t sbc_proto_8_80m1[] = {
81 SS8(0xff7c272c), SS8(0xfcb02620), SS8(0xda612700), SS8(0xfcb02620),
82 SS8(0xff7c272c), SS8(0xff762170), SS8(0xfdbb828c), SS8(0xdac7bb40),
83 SS8(0xfc1417b8), SS8(0xff8b1a31), SS8(0xff7d4914), SS8(0xff405e01),
84 SS8(0xdbf79400), SS8(0xfbd8f358), SS8(0xff9f3e17), SS8(0xff960e94),
85 SS8(0x0142291c), SS8(0xdde26200), SS8(0xfbedadc0), SS8(0xffb54b3b),
86 SS8(0xffc4e05c), SS8(0x03bf7948), SS8(0xe071bc00), SS8(0xfc3fbb68),
87 SS8(0xffca00ed), SS8(0x000bb7db), SS8(0x06af2308), SS8(0xe3889d20),
88 SS8(0xfcbc98e8), SS8(0xffdba705), SS8(0x006c1de4), SS8(0x0a00d410),
89 SS8(0xe7054ca0), SS8(0xfd52986c), SS8(0xffe9811d), SS8(0x00e530da),
90 SS8(0x0d9daee0), SS8(0xeac182c0), SS8(0xfdf1c8d4), SS8(0xfff5bd1a)
93 static const int32_t synmatrix4[8][4] = {
94 { SN4(0x05a82798), SN4(0xfa57d868), SN4(0xfa57d868), SN4(0x05a82798) },
95 { SN4(0x030fbc54), SN4(0xf89be510), SN4(0x07641af0), SN4(0xfcf043ac) },
96 { SN4(0x00000000), SN4(0x00000000), SN4(0x00000000), SN4(0x00000000) },
97 { SN4(0xfcf043ac), SN4(0x07641af0), SN4(0xf89be510), SN4(0x030fbc54) },
98 { SN4(0xfa57d868), SN4(0x05a82798), SN4(0x05a82798), SN4(0xfa57d868) },
99 { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) },
100 { SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000) },
101 { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) }
104 static const int32_t synmatrix8[16][8] = {
105 { SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798),
106 SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798) },
107 { SN8(0x0471ced0), SN8(0xf8275a10), SN8(0x018f8b84), SN8(0x06a6d988),
108 SN8(0xf9592678), SN8(0xfe70747c), SN8(0x07d8a5f0), SN8(0xfb8e3130) },
109 { SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac),
110 SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54) },
111 { SN8(0x018f8b84), SN8(0xfb8e3130), SN8(0x06a6d988), SN8(0xf8275a10),
112 SN8(0x07d8a5f0), SN8(0xf9592678), SN8(0x0471ced0), SN8(0xfe70747c) },
113 { SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000),
114 SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000) },
115 { SN8(0xfe70747c), SN8(0x0471ced0), SN8(0xf9592678), SN8(0x07d8a5f0),
116 SN8(0xf8275a10), SN8(0x06a6d988), SN8(0xfb8e3130), SN8(0x018f8b84) },
117 { SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54),
118 SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac) },
119 { SN8(0xfb8e3130), SN8(0x07d8a5f0), SN8(0xfe70747c), SN8(0xf9592678),
120 SN8(0x06a6d988), SN8(0x018f8b84), SN8(0xf8275a10), SN8(0x0471ced0) },
121 { SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868),
122 SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868) },
123 { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
124 SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) },
125 { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
126 SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
127 { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
128 SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
129 { SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000),
130 SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000) },
131 { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
132 SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
133 { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
134 SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
135 { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
136 SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) }
139 /* Uncomment the following line to enable high precision build of SBC encoder */
141 /* #define SBC_HIGH_PRECISION */
143 #ifdef SBC_HIGH_PRECISION
144 #define FIXED_A int64_t /* data type for fixed point accumulator */
145 #define FIXED_T int32_t /* data type for fixed point constants */
146 #define SBC_FIXED_EXTRA_BITS 16
148 #define FIXED_A int32_t /* data type for fixed point accumulator */
149 #define FIXED_T int16_t /* data type for fixed point constants */
150 #define SBC_FIXED_EXTRA_BITS 0
153 /* A2DP specification: Section 12.8 Tables
155 * Original values are premultiplied by 2 for better precision (that is the
156 * maximum which is possible without overflows)
158 * Note: in each block of 8 numbers sign was changed for elements 2 and 7
159 * in order to compensate the same change applied to cos_table_fixed_4
161 #define SBC_PROTO_FIXED4_SCALE \
162 ((sizeof(FIXED_T) * CHAR_BIT - 1) - SBC_FIXED_EXTRA_BITS + 1)
163 #define F_PROTO4(x) (FIXED_A) ((x * 2) * \
164 ((FIXED_A) 1 << (sizeof(FIXED_T) * CHAR_BIT - 1)) + 0.5)
165 #define F(x) F_PROTO4(x)
166 static const FIXED_T _sbc_proto_fixed4[40] = {
167 F(0.00000000E+00), F(5.36548976E-04),
168 -F(1.49188357E-03), F(2.73370904E-03),
169 F(3.83720193E-03), F(3.89205149E-03),
170 F(1.86581691E-03), F(3.06012286E-03),
172 F(1.09137620E-02), F(2.04385087E-02),
173 -F(2.88757392E-02), F(3.21939290E-02),
174 F(2.58767811E-02), F(6.13245186E-03),
175 -F(2.88217274E-02), F(7.76463494E-02),
177 F(1.35593274E-01), F(1.94987841E-01),
178 -F(2.46636662E-01), F(2.81828203E-01),
179 F(2.94315332E-01), F(2.81828203E-01),
180 F(2.46636662E-01), -F(1.94987841E-01),
182 -F(1.35593274E-01), -F(7.76463494E-02),
183 F(2.88217274E-02), F(6.13245186E-03),
184 F(2.58767811E-02), F(3.21939290E-02),
185 F(2.88757392E-02), -F(2.04385087E-02),
187 -F(1.09137620E-02), -F(3.06012286E-03),
188 -F(1.86581691E-03), F(3.89205149E-03),
189 F(3.83720193E-03), F(2.73370904E-03),
190 F(1.49188357E-03), -F(5.36548976E-04),
195 * To produce this cosine matrix in Octave:
199 * for j = 0:7 b(i+1, j+1) = cos((i + 0.5) * (j - 2) * (pi/4))
202 * printf("%.10f, ", b');
204 * Note: in each block of 8 numbers sign was changed for elements 2 and 7
206 * Change of sign for element 2 allows to replace constant 1.0 (not
207 * representable in Q15 format) with -1.0 (fine with Q15).
208 * Changed sign for element 7 allows to have more similar constants
209 * and simplify subband filter function code.
211 #define SBC_COS_TABLE_FIXED4_SCALE \
212 ((sizeof(FIXED_T) * CHAR_BIT - 1) + SBC_FIXED_EXTRA_BITS)
213 #define F_COS4(x) (FIXED_A) ((x) * \
214 ((FIXED_A) 1 << (sizeof(FIXED_T) * CHAR_BIT - 1)) + 0.5)
215 #define F(x) F_COS4(x)
216 static const FIXED_T cos_table_fixed_4[32] = {
217 F(0.7071067812), F(0.9238795325), -F(1.0000000000), F(0.9238795325),
218 F(0.7071067812), F(0.3826834324), F(0.0000000000), F(0.3826834324),
220 -F(0.7071067812), F(0.3826834324), -F(1.0000000000), F(0.3826834324),
221 -F(0.7071067812), -F(0.9238795325), -F(0.0000000000), -F(0.9238795325),
223 -F(0.7071067812), -F(0.3826834324), -F(1.0000000000), -F(0.3826834324),
224 -F(0.7071067812), F(0.9238795325), F(0.0000000000), F(0.9238795325),
226 F(0.7071067812), -F(0.9238795325), -F(1.0000000000), -F(0.9238795325),
227 F(0.7071067812), -F(0.3826834324), -F(0.0000000000), -F(0.3826834324),
231 /* A2DP specification: Section 12.8 Tables
233 * Original values are premultiplied by 4 for better precision (that is the
234 * maximum which is possible without overflows)
236 * Note: in each block of 16 numbers sign was changed for elements 4, 13, 14, 15
237 * in order to compensate the same change applied to cos_table_fixed_8
239 #define SBC_PROTO_FIXED8_SCALE \
240 ((sizeof(FIXED_T) * CHAR_BIT - 1) - SBC_FIXED_EXTRA_BITS + 1)
241 #define F_PROTO8(x) (FIXED_A) ((x * 2) * \
242 ((FIXED_A) 1 << (sizeof(FIXED_T) * CHAR_BIT - 1)) + 0.5)
243 #define F(x) F_PROTO8(x)
244 static const FIXED_T _sbc_proto_fixed8[80] = {
245 F(0.00000000E+00), F(1.56575398E-04),
246 F(3.43256425E-04), F(5.54620202E-04),
247 -F(8.23919506E-04), F(1.13992507E-03),
248 F(1.47640169E-03), F(1.78371725E-03),
249 F(2.01182542E-03), F(2.10371989E-03),
250 F(1.99454554E-03), F(1.61656283E-03),
251 F(9.02154502E-04), F(1.78805361E-04),
252 F(1.64973098E-03), F(3.49717454E-03),
254 F(5.65949473E-03), F(8.02941163E-03),
255 F(1.04584443E-02), F(1.27472335E-02),
256 -F(1.46525263E-02), F(1.59045603E-02),
257 F(1.62208471E-02), F(1.53184106E-02),
258 F(1.29371806E-02), F(8.85757540E-03),
259 F(2.92408442E-03), -F(4.91578024E-03),
260 -F(1.46404076E-02), F(2.61098752E-02),
261 F(3.90751381E-02), F(5.31873032E-02),
263 F(6.79989431E-02), F(8.29847578E-02),
264 F(9.75753918E-02), F(1.11196689E-01),
265 -F(1.23264548E-01), F(1.33264415E-01),
266 F(1.40753505E-01), F(1.45389847E-01),
267 F(1.46955068E-01), F(1.45389847E-01),
268 F(1.40753505E-01), F(1.33264415E-01),
269 F(1.23264548E-01), -F(1.11196689E-01),
270 -F(9.75753918E-02), -F(8.29847578E-02),
272 -F(6.79989431E-02), -F(5.31873032E-02),
273 -F(3.90751381E-02), -F(2.61098752E-02),
274 F(1.46404076E-02), -F(4.91578024E-03),
275 F(2.92408442E-03), F(8.85757540E-03),
276 F(1.29371806E-02), F(1.53184106E-02),
277 F(1.62208471E-02), F(1.59045603E-02),
278 F(1.46525263E-02), -F(1.27472335E-02),
279 -F(1.04584443E-02), -F(8.02941163E-03),
281 -F(5.65949473E-03), -F(3.49717454E-03),
282 -F(1.64973098E-03), -F(1.78805361E-04),
283 -F(9.02154502E-04), F(1.61656283E-03),
284 F(1.99454554E-03), F(2.10371989E-03),
285 F(2.01182542E-03), F(1.78371725E-03),
286 F(1.47640169E-03), F(1.13992507E-03),
287 F(8.23919506E-04), -F(5.54620202E-04),
288 -F(3.43256425E-04), -F(1.56575398E-04),
293 * To produce this cosine matrix in Octave:
297 * for j = 0:15 b(i+1, j+1) = cos((i + 0.5) * (j - 4) * (pi/8))
299 * printf("%.10f, ", b');
301 * Note: in each block of 16 numbers sign was changed for elements 4, 13, 14, 15
303 * Change of sign for element 4 allows to replace constant 1.0 (not
304 * representable in Q15 format) with -1.0 (fine with Q15).
305 * Changed signs for elements 13, 14, 15 allow to have more similar constants
306 * and simplify subband filter function code.
308 #define SBC_COS_TABLE_FIXED8_SCALE \
309 ((sizeof(FIXED_T) * CHAR_BIT - 1) + SBC_FIXED_EXTRA_BITS)
310 #define F_COS8(x) (FIXED_A) ((x) * \
311 ((FIXED_A) 1 << (sizeof(FIXED_T) * CHAR_BIT - 1)) + 0.5)
312 #define F(x) F_COS8(x)
313 static const FIXED_T cos_table_fixed_8[128] = {
314 F(0.7071067812), F(0.8314696123), F(0.9238795325), F(0.9807852804),
315 -F(1.0000000000), F(0.9807852804), F(0.9238795325), F(0.8314696123),
316 F(0.7071067812), F(0.5555702330), F(0.3826834324), F(0.1950903220),
317 F(0.0000000000), F(0.1950903220), F(0.3826834324), F(0.5555702330),
319 -F(0.7071067812), -F(0.1950903220), F(0.3826834324), F(0.8314696123),
320 -F(1.0000000000), F(0.8314696123), F(0.3826834324), -F(0.1950903220),
321 -F(0.7071067812), -F(0.9807852804), -F(0.9238795325), -F(0.5555702330),
322 -F(0.0000000000), -F(0.5555702330), -F(0.9238795325), -F(0.9807852804),
324 -F(0.7071067812), -F(0.9807852804), -F(0.3826834324), F(0.5555702330),
325 -F(1.0000000000), F(0.5555702330), -F(0.3826834324), -F(0.9807852804),
326 -F(0.7071067812), F(0.1950903220), F(0.9238795325), F(0.8314696123),
327 F(0.0000000000), F(0.8314696123), F(0.9238795325), F(0.1950903220),
329 F(0.7071067812), -F(0.5555702330), -F(0.9238795325), F(0.1950903220),
330 -F(1.0000000000), F(0.1950903220), -F(0.9238795325), -F(0.5555702330),
331 F(0.7071067812), F(0.8314696123), -F(0.3826834324), -F(0.9807852804),
332 -F(0.0000000000), -F(0.9807852804), -F(0.3826834324), F(0.8314696123),
334 F(0.7071067812), F(0.5555702330), -F(0.9238795325), -F(0.1950903220),
335 -F(1.0000000000), -F(0.1950903220), -F(0.9238795325), F(0.5555702330),
336 F(0.7071067812), -F(0.8314696123), -F(0.3826834324), F(0.9807852804),
337 F(0.0000000000), F(0.9807852804), -F(0.3826834324), -F(0.8314696123),
339 -F(0.7071067812), F(0.9807852804), -F(0.3826834324), -F(0.5555702330),
340 -F(1.0000000000), -F(0.5555702330), -F(0.3826834324), F(0.9807852804),
341 -F(0.7071067812), -F(0.1950903220), F(0.9238795325), -F(0.8314696123),
342 -F(0.0000000000), -F(0.8314696123), F(0.9238795325), -F(0.1950903220),
344 -F(0.7071067812), F(0.1950903220), F(0.3826834324), -F(0.8314696123),
345 -F(1.0000000000), -F(0.8314696123), F(0.3826834324), F(0.1950903220),
346 -F(0.7071067812), F(0.9807852804), -F(0.9238795325), F(0.5555702330),
347 -F(0.0000000000), F(0.5555702330), -F(0.9238795325), F(0.9807852804),
349 F(0.7071067812), -F(0.8314696123), F(0.9238795325), -F(0.9807852804),
350 -F(1.0000000000), -F(0.9807852804), F(0.9238795325), -F(0.8314696123),
351 F(0.7071067812), -F(0.5555702330), F(0.3826834324), -F(0.1950903220),
352 -F(0.0000000000), -F(0.1950903220), F(0.3826834324), -F(0.5555702330),
357 * Enforce 16 byte alignment for the data, which is supposed to be used
358 * with SIMD optimized code.
361 #define SBC_ALIGN_BITS 4
362 #define SBC_ALIGN_MASK ((1 << (SBC_ALIGN_BITS)) - 1)
365 #define SBC_ALIGNED __attribute__((aligned(1 << (SBC_ALIGN_BITS))))
371 * Constant tables for the use in SIMD optimized analysis filters
372 * Each table consists of two parts:
373 * 1. reordered "proto" table
374 * 2. reordered "cos" table
376 * Due to non-symmetrical reordering, separate tables for "even"
377 * and "odd" cases are needed
380 static const FIXED_T SBC_ALIGNED analysis_consts_fixed4_simd_even[40 + 16] = {
381 #define C0 1.0932568993
382 #define C1 1.3056875580
383 #define C2 1.3056875580
384 #define C3 1.6772280856
386 #define F(x) F_PROTO4(x)
387 F(0.00000000E+00 * C0), F(3.83720193E-03 * C0),
388 F(5.36548976E-04 * C1), F(2.73370904E-03 * C1),
389 F(3.06012286E-03 * C2), F(3.89205149E-03 * C2),
390 F(0.00000000E+00 * C3), -F(1.49188357E-03 * C3),
391 F(1.09137620E-02 * C0), F(2.58767811E-02 * C0),
392 F(2.04385087E-02 * C1), F(3.21939290E-02 * C1),
393 F(7.76463494E-02 * C2), F(6.13245186E-03 * C2),
394 F(0.00000000E+00 * C3), -F(2.88757392E-02 * C3),
395 F(1.35593274E-01 * C0), F(2.94315332E-01 * C0),
396 F(1.94987841E-01 * C1), F(2.81828203E-01 * C1),
397 -F(1.94987841E-01 * C2), F(2.81828203E-01 * C2),
398 F(0.00000000E+00 * C3), -F(2.46636662E-01 * C3),
399 -F(1.35593274E-01 * C0), F(2.58767811E-02 * C0),
400 -F(7.76463494E-02 * C1), F(6.13245186E-03 * C1),
401 -F(2.04385087E-02 * C2), F(3.21939290E-02 * C2),
402 F(0.00000000E+00 * C3), F(2.88217274E-02 * C3),
403 -F(1.09137620E-02 * C0), F(3.83720193E-03 * C0),
404 -F(3.06012286E-03 * C1), F(3.89205149E-03 * C1),
405 -F(5.36548976E-04 * C2), F(2.73370904E-03 * C2),
406 F(0.00000000E+00 * C3), -F(1.86581691E-03 * C3),
408 #define F(x) F_COS4(x)
409 F(0.7071067812 / C0), F(0.9238795325 / C1),
410 -F(0.7071067812 / C0), F(0.3826834324 / C1),
411 -F(0.7071067812 / C0), -F(0.3826834324 / C1),
412 F(0.7071067812 / C0), -F(0.9238795325 / C1),
413 F(0.3826834324 / C2), -F(1.0000000000 / C3),
414 -F(0.9238795325 / C2), -F(1.0000000000 / C3),
415 F(0.9238795325 / C2), -F(1.0000000000 / C3),
416 -F(0.3826834324 / C2), -F(1.0000000000 / C3),
425 static const FIXED_T SBC_ALIGNED analysis_consts_fixed4_simd_odd[40 + 16] = {
426 #define C0 1.3056875580
427 #define C1 1.6772280856
428 #define C2 1.0932568993
429 #define C3 1.3056875580
431 #define F(x) F_PROTO4(x)
432 F(2.73370904E-03 * C0), F(5.36548976E-04 * C0),
433 -F(1.49188357E-03 * C1), F(0.00000000E+00 * C1),
434 F(3.83720193E-03 * C2), F(1.09137620E-02 * C2),
435 F(3.89205149E-03 * C3), F(3.06012286E-03 * C3),
436 F(3.21939290E-02 * C0), F(2.04385087E-02 * C0),
437 -F(2.88757392E-02 * C1), F(0.00000000E+00 * C1),
438 F(2.58767811E-02 * C2), F(1.35593274E-01 * C2),
439 F(6.13245186E-03 * C3), F(7.76463494E-02 * C3),
440 F(2.81828203E-01 * C0), F(1.94987841E-01 * C0),
441 -F(2.46636662E-01 * C1), F(0.00000000E+00 * C1),
442 F(2.94315332E-01 * C2), -F(1.35593274E-01 * C2),
443 F(2.81828203E-01 * C3), -F(1.94987841E-01 * C3),
444 F(6.13245186E-03 * C0), -F(7.76463494E-02 * C0),
445 F(2.88217274E-02 * C1), F(0.00000000E+00 * C1),
446 F(2.58767811E-02 * C2), -F(1.09137620E-02 * C2),
447 F(3.21939290E-02 * C3), -F(2.04385087E-02 * C3),
448 F(3.89205149E-03 * C0), -F(3.06012286E-03 * C0),
449 -F(1.86581691E-03 * C1), F(0.00000000E+00 * C1),
450 F(3.83720193E-03 * C2), F(0.00000000E+00 * C2),
451 F(2.73370904E-03 * C3), -F(5.36548976E-04 * C3),
453 #define F(x) F_COS4(x)
454 F(0.9238795325 / C0), -F(1.0000000000 / C1),
455 F(0.3826834324 / C0), -F(1.0000000000 / C1),
456 -F(0.3826834324 / C0), -F(1.0000000000 / C1),
457 -F(0.9238795325 / C0), -F(1.0000000000 / C1),
458 F(0.7071067812 / C2), F(0.3826834324 / C3),
459 -F(0.7071067812 / C2), -F(0.9238795325 / C3),
460 -F(0.7071067812 / C2), F(0.9238795325 / C3),
461 F(0.7071067812 / C2), -F(0.3826834324 / C3),
470 static const FIXED_T SBC_ALIGNED analysis_consts_fixed8_simd_even[80 + 64] = {
471 #define C0 2.7906148894
472 #define C1 2.4270044280
473 #define C2 2.8015616024
474 #define C3 3.1710363741
475 #define C4 2.5377944043
476 #define C5 2.4270044280
477 #define C6 2.8015616024
478 #define C7 3.1710363741
480 #define F(x) F_PROTO8(x)
481 F(0.00000000E+00 * C0), F(2.01182542E-03 * C0),
482 F(1.56575398E-04 * C1), F(1.78371725E-03 * C1),
483 F(3.43256425E-04 * C2), F(1.47640169E-03 * C2),
484 F(5.54620202E-04 * C3), F(1.13992507E-03 * C3),
485 -F(8.23919506E-04 * C4), F(0.00000000E+00 * C4),
486 F(2.10371989E-03 * C5), F(3.49717454E-03 * C5),
487 F(1.99454554E-03 * C6), F(1.64973098E-03 * C6),
488 F(1.61656283E-03 * C7), F(1.78805361E-04 * C7),
489 F(5.65949473E-03 * C0), F(1.29371806E-02 * C0),
490 F(8.02941163E-03 * C1), F(1.53184106E-02 * C1),
491 F(1.04584443E-02 * C2), F(1.62208471E-02 * C2),
492 F(1.27472335E-02 * C3), F(1.59045603E-02 * C3),
493 -F(1.46525263E-02 * C4), F(0.00000000E+00 * C4),
494 F(8.85757540E-03 * C5), F(5.31873032E-02 * C5),
495 F(2.92408442E-03 * C6), F(3.90751381E-02 * C6),
496 -F(4.91578024E-03 * C7), F(2.61098752E-02 * C7),
497 F(6.79989431E-02 * C0), F(1.46955068E-01 * C0),
498 F(8.29847578E-02 * C1), F(1.45389847E-01 * C1),
499 F(9.75753918E-02 * C2), F(1.40753505E-01 * C2),
500 F(1.11196689E-01 * C3), F(1.33264415E-01 * C3),
501 -F(1.23264548E-01 * C4), F(0.00000000E+00 * C4),
502 F(1.45389847E-01 * C5), -F(8.29847578E-02 * C5),
503 F(1.40753505E-01 * C6), -F(9.75753918E-02 * C6),
504 F(1.33264415E-01 * C7), -F(1.11196689E-01 * C7),
505 -F(6.79989431E-02 * C0), F(1.29371806E-02 * C0),
506 -F(5.31873032E-02 * C1), F(8.85757540E-03 * C1),
507 -F(3.90751381E-02 * C2), F(2.92408442E-03 * C2),
508 -F(2.61098752E-02 * C3), -F(4.91578024E-03 * C3),
509 F(1.46404076E-02 * C4), F(0.00000000E+00 * C4),
510 F(1.53184106E-02 * C5), -F(8.02941163E-03 * C5),
511 F(1.62208471E-02 * C6), -F(1.04584443E-02 * C6),
512 F(1.59045603E-02 * C7), -F(1.27472335E-02 * C7),
513 -F(5.65949473E-03 * C0), F(2.01182542E-03 * C0),
514 -F(3.49717454E-03 * C1), F(2.10371989E-03 * C1),
515 -F(1.64973098E-03 * C2), F(1.99454554E-03 * C2),
516 -F(1.78805361E-04 * C3), F(1.61656283E-03 * C3),
517 -F(9.02154502E-04 * C4), F(0.00000000E+00 * C4),
518 F(1.78371725E-03 * C5), -F(1.56575398E-04 * C5),
519 F(1.47640169E-03 * C6), -F(3.43256425E-04 * C6),
520 F(1.13992507E-03 * C7), -F(5.54620202E-04 * C7),
522 #define F(x) F_COS8(x)
523 F(0.7071067812 / C0), F(0.8314696123 / C1),
524 -F(0.7071067812 / C0), -F(0.1950903220 / C1),
525 -F(0.7071067812 / C0), -F(0.9807852804 / C1),
526 F(0.7071067812 / C0), -F(0.5555702330 / C1),
527 F(0.7071067812 / C0), F(0.5555702330 / C1),
528 -F(0.7071067812 / C0), F(0.9807852804 / C1),
529 -F(0.7071067812 / C0), F(0.1950903220 / C1),
530 F(0.7071067812 / C0), -F(0.8314696123 / C1),
531 F(0.9238795325 / C2), F(0.9807852804 / C3),
532 F(0.3826834324 / C2), F(0.8314696123 / C3),
533 -F(0.3826834324 / C2), F(0.5555702330 / C3),
534 -F(0.9238795325 / C2), F(0.1950903220 / C3),
535 -F(0.9238795325 / C2), -F(0.1950903220 / C3),
536 -F(0.3826834324 / C2), -F(0.5555702330 / C3),
537 F(0.3826834324 / C2), -F(0.8314696123 / C3),
538 F(0.9238795325 / C2), -F(0.9807852804 / C3),
539 -F(1.0000000000 / C4), F(0.5555702330 / C5),
540 -F(1.0000000000 / C4), -F(0.9807852804 / C5),
541 -F(1.0000000000 / C4), F(0.1950903220 / C5),
542 -F(1.0000000000 / C4), F(0.8314696123 / C5),
543 -F(1.0000000000 / C4), -F(0.8314696123 / C5),
544 -F(1.0000000000 / C4), -F(0.1950903220 / C5),
545 -F(1.0000000000 / C4), F(0.9807852804 / C5),
546 -F(1.0000000000 / C4), -F(0.5555702330 / C5),
547 F(0.3826834324 / C6), F(0.1950903220 / C7),
548 -F(0.9238795325 / C6), -F(0.5555702330 / C7),
549 F(0.9238795325 / C6), F(0.8314696123 / C7),
550 -F(0.3826834324 / C6), -F(0.9807852804 / C7),
551 -F(0.3826834324 / C6), F(0.9807852804 / C7),
552 F(0.9238795325 / C6), -F(0.8314696123 / C7),
553 -F(0.9238795325 / C6), F(0.5555702330 / C7),
554 F(0.3826834324 / C6), -F(0.1950903220 / C7),
567 static const FIXED_T SBC_ALIGNED analysis_consts_fixed8_simd_odd[80 + 64] = {
568 #define C0 2.5377944043
569 #define C1 2.4270044280
570 #define C2 2.8015616024
571 #define C3 3.1710363741
572 #define C4 2.7906148894
573 #define C5 2.4270044280
574 #define C6 2.8015616024
575 #define C7 3.1710363741
577 #define F(x) F_PROTO8(x)
578 F(0.00000000E+00 * C0), -F(8.23919506E-04 * C0),
579 F(1.56575398E-04 * C1), F(1.78371725E-03 * C1),
580 F(3.43256425E-04 * C2), F(1.47640169E-03 * C2),
581 F(5.54620202E-04 * C3), F(1.13992507E-03 * C3),
582 F(2.01182542E-03 * C4), F(5.65949473E-03 * C4),
583 F(2.10371989E-03 * C5), F(3.49717454E-03 * C5),
584 F(1.99454554E-03 * C6), F(1.64973098E-03 * C6),
585 F(1.61656283E-03 * C7), F(1.78805361E-04 * C7),
586 F(0.00000000E+00 * C0), -F(1.46525263E-02 * C0),
587 F(8.02941163E-03 * C1), F(1.53184106E-02 * C1),
588 F(1.04584443E-02 * C2), F(1.62208471E-02 * C2),
589 F(1.27472335E-02 * C3), F(1.59045603E-02 * C3),
590 F(1.29371806E-02 * C4), F(6.79989431E-02 * C4),
591 F(8.85757540E-03 * C5), F(5.31873032E-02 * C5),
592 F(2.92408442E-03 * C6), F(3.90751381E-02 * C6),
593 -F(4.91578024E-03 * C7), F(2.61098752E-02 * C7),
594 F(0.00000000E+00 * C0), -F(1.23264548E-01 * C0),
595 F(8.29847578E-02 * C1), F(1.45389847E-01 * C1),
596 F(9.75753918E-02 * C2), F(1.40753505E-01 * C2),
597 F(1.11196689E-01 * C3), F(1.33264415E-01 * C3),
598 F(1.46955068E-01 * C4), -F(6.79989431E-02 * C4),
599 F(1.45389847E-01 * C5), -F(8.29847578E-02 * C5),
600 F(1.40753505E-01 * C6), -F(9.75753918E-02 * C6),
601 F(1.33264415E-01 * C7), -F(1.11196689E-01 * C7),
602 F(0.00000000E+00 * C0), F(1.46404076E-02 * C0),
603 -F(5.31873032E-02 * C1), F(8.85757540E-03 * C1),
604 -F(3.90751381E-02 * C2), F(2.92408442E-03 * C2),
605 -F(2.61098752E-02 * C3), -F(4.91578024E-03 * C3),
606 F(1.29371806E-02 * C4), -F(5.65949473E-03 * C4),
607 F(1.53184106E-02 * C5), -F(8.02941163E-03 * C5),
608 F(1.62208471E-02 * C6), -F(1.04584443E-02 * C6),
609 F(1.59045603E-02 * C7), -F(1.27472335E-02 * C7),
610 F(0.00000000E+00 * C0), -F(9.02154502E-04 * C0),
611 -F(3.49717454E-03 * C1), F(2.10371989E-03 * C1),
612 -F(1.64973098E-03 * C2), F(1.99454554E-03 * C2),
613 -F(1.78805361E-04 * C3), F(1.61656283E-03 * C3),
614 F(2.01182542E-03 * C4), F(0.00000000E+00 * C4),
615 F(1.78371725E-03 * C5), -F(1.56575398E-04 * C5),
616 F(1.47640169E-03 * C6), -F(3.43256425E-04 * C6),
617 F(1.13992507E-03 * C7), -F(5.54620202E-04 * C7),
619 #define F(x) F_COS8(x)
620 -F(1.0000000000 / C0), F(0.8314696123 / C1),
621 -F(1.0000000000 / C0), -F(0.1950903220 / C1),
622 -F(1.0000000000 / C0), -F(0.9807852804 / C1),
623 -F(1.0000000000 / C0), -F(0.5555702330 / C1),
624 -F(1.0000000000 / C0), F(0.5555702330 / C1),
625 -F(1.0000000000 / C0), F(0.9807852804 / C1),
626 -F(1.0000000000 / C0), F(0.1950903220 / C1),
627 -F(1.0000000000 / C0), -F(0.8314696123 / C1),
628 F(0.9238795325 / C2), F(0.9807852804 / C3),
629 F(0.3826834324 / C2), F(0.8314696123 / C3),
630 -F(0.3826834324 / C2), F(0.5555702330 / C3),
631 -F(0.9238795325 / C2), F(0.1950903220 / C3),
632 -F(0.9238795325 / C2), -F(0.1950903220 / C3),
633 -F(0.3826834324 / C2), -F(0.5555702330 / C3),
634 F(0.3826834324 / C2), -F(0.8314696123 / C3),
635 F(0.9238795325 / C2), -F(0.9807852804 / C3),
636 F(0.7071067812 / C4), F(0.5555702330 / C5),
637 -F(0.7071067812 / C4), -F(0.9807852804 / C5),
638 -F(0.7071067812 / C4), F(0.1950903220 / C5),
639 F(0.7071067812 / C4), F(0.8314696123 / C5),
640 F(0.7071067812 / C4), -F(0.8314696123 / C5),
641 -F(0.7071067812 / C4), -F(0.1950903220 / C5),
642 -F(0.7071067812 / C4), F(0.9807852804 / C5),
643 F(0.7071067812 / C4), -F(0.5555702330 / C5),
644 F(0.3826834324 / C6), F(0.1950903220 / C7),
645 -F(0.9238795325 / C6), -F(0.5555702330 / C7),
646 F(0.9238795325 / C6), F(0.8314696123 / C7),
647 -F(0.3826834324 / C6), -F(0.9807852804 / C7),
648 -F(0.3826834324 / C6), F(0.9807852804 / C7),
649 F(0.9238795325 / C6), -F(0.8314696123 / C7),
650 -F(0.9238795325 / C6), F(0.5555702330 / C7),
651 F(0.3826834324 / C6), -F(0.1950903220 / C7),