2 * 11/19/04 1.0 moved to LGPL.
4 * 04/01/00 Fixes for running under build 23xx Microsoft JVM. mdm.
6 * 19/12/99 Performance improvements to compute_pcm_samples().
7 * Mat McGowan. mdm@techie.com.
9 * 16/02/99 Java Conversion by E.B , javalayer@javazoom.net
11 * @(#) synthesis_filter.h 1.8, last edit: 6/15/94 16:52:00
12 * @(#) Copyright (C) 1993, 1994 Tobias Bading (bading@cs.tu-berlin.de)
13 * @(#) Berlin University of Technology
15 *-----------------------------------------------------------------------
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU Library General Public License as published
18 * by the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU Library General Public License for more details.
26 * You should have received a copy of the GNU Library General Public
27 * License along with this program; if not, write to the Free Software
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 *----------------------------------------------------------------------
33 * A class for the synthesis filter bank. This class does a fast downsampling
34 * from 32, 44.1 or 48 kHz to 8 kHz, if ULAW is defined. Frequencies above 4 kHz
35 * are removed by ignoring higher subbands.
37 @LATTICE("OUT<V2,V2<V1,V1<V,V<NEWV,NEWV<SAMPLE,SAMPLE<EQ,EQ<IDX,V*,NEWV*,IDX*")
38 @METHODDEFAULT("OUT<THIS,THIS<C,C<IN,C*,THISLOC=THIS,GLOBALLOC=THIS")
39 final class SynthesisFilter {
53 // private float[] actual_v; // v1 or v2
55 public int actual_write_pos; // 0-15
57 private float[] samples; // 32 new subband samples
59 public final int channel;
61 public final float scalefactor;
66 * Quality value for controlling CPU usage/quality tradeoff.
69 * private int quality;
75 * public static final int HIGH_QUALITY = 1; public static final int
76 * MEDIUM_QUALITY = 2; public static final int LOW_QUALITY = 4;
80 * Contructor. The scalefactor scales the calculated float pcm samples to
81 * short values (raw pcm samples are in [-1.0, 1.0], if no violations occur).
83 public SynthesisFilter(int channelnumber, float factor, float[] eq0) {
86 d16 = splitArray(d, 16);
90 prev1 = new float[512];
91 prev2 = new float[512];
92 samples = new float[32];
93 channel = channelnumber;
96 // setQuality(HIGH_QUALITY);
100 for (int i = 0; i < 32; i++)
103 if (eq.length < 32) {
104 throw new IllegalArgumentException("eq0");
109 for (int p = 0; p < 512; p++)
110 v1[p] = v2[p] = 0.0f;
112 for (int p2 = 0; p2 < 32; p2++)
116 actual_write_pos = 15;
121 * private void setQuality(int quality0) { switch (quality0) { case
122 * HIGH_QUALITY: case MEDIUM_QUALITY: case LOW_QUALITY: v_inc = 16 * quality0;
123 * quality = quality0; break; default : throw new
124 * IllegalArgumentException("Unknown quality value"); } }
126 * public int getQuality() { return quality; }
132 public void input_sample(@LOC("IN") float sample, @LOC("IN") int subbandnumber) {
133 samples[subbandnumber] = eq[subbandnumber] * sample;
136 public void input_samples(@LOC("IN") float[] s) {
137 TERMINATE: for (@LOC("C") int i = 31; i >= 0; i--) {
138 samples[i] = s[i] * eq[i];
142 private void compute_new_v2_v1() {
144 @LOC("THIS,SynthesisFilter.NEWV") float new_v0 = 0.0f;
145 @LOC("THIS,SynthesisFilter.NEWV") float new_v1 = 0.0f;
146 @LOC("THIS,SynthesisFilter.NEWV") float new_v2 = 0.0f;
147 @LOC("THIS,SynthesisFilter.NEWV") float new_v3 = 0.0f;
148 @LOC("THIS,SynthesisFilter.NEWV") float new_v4 = 0.0f;
149 @LOC("THIS,SynthesisFilter.NEWV") float new_v5 = 0.0f;
150 @LOC("THIS,SynthesisFilter.NEWV") float new_v6 = 0.0f;
151 @LOC("THIS,SynthesisFilter.NEWV") float new_v7 = 0.0f;
152 @LOC("THIS,SynthesisFilter.NEWV") float new_v8 = 0.0f;
153 @LOC("THIS,SynthesisFilter.NEWV") float new_v9 = 0.0f;
154 @LOC("THIS,SynthesisFilter.NEWV") float new_v10 = 0.0f;
155 @LOC("THIS,SynthesisFilter.NEWV") float new_v11 = 0.0f;
156 @LOC("THIS,SynthesisFilter.NEWV") float new_v12 = 0.0f;
157 @LOC("THIS,SynthesisFilter.NEWV") float new_v13 = 0.0f;
158 @LOC("THIS,SynthesisFilter.NEWV") float new_v14 = 0.0f;
159 @LOC("THIS,SynthesisFilter.NEWV") float new_v15 = 0.0f;
160 @LOC("THIS,SynthesisFilter.NEWV") float new_v16 = 0.0f;
161 @LOC("THIS,SynthesisFilter.NEWV") float new_v17 = 0.0f;
162 @LOC("THIS,SynthesisFilter.NEWV") float new_v18 = 0.0f;
163 @LOC("THIS,SynthesisFilter.NEWV") float new_v19 = 0.0f;
164 @LOC("THIS,SynthesisFilter.NEWV") float new_v20 = 0.0f;
165 @LOC("THIS,SynthesisFilter.NEWV") float new_v21 = 0.0f;
166 @LOC("THIS,SynthesisFilter.NEWV") float new_v22 = 0.0f;
167 @LOC("THIS,SynthesisFilter.NEWV") float new_v23 = 0.0f;
168 @LOC("THIS,SynthesisFilter.NEWV") float new_v24 = 0.0f;
169 @LOC("THIS,SynthesisFilter.NEWV") float new_v25 = 0.0f;
170 @LOC("THIS,SynthesisFilter.NEWV") float new_v26 = 0.0f;
171 @LOC("THIS,SynthesisFilter.NEWV") float new_v27 = 0.0f;
172 @LOC("THIS,SynthesisFilter.NEWV") float new_v28 = 0.0f;
173 @LOC("THIS,SynthesisFilter.NEWV") float new_v29 = 0.0f;
174 @LOC("THIS,SynthesisFilter.NEWV") float new_v30 = 0.0f;
175 @LOC("THIS,SynthesisFilter.NEWV") float new_v31 = 0.0f;
177 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
178 // 3-A.2 in ISO DIS 11172-3
179 // float[] p = new float[16];
180 // float[] pp = new float[16];
182 // float[] s = samples;
184 @LOC("THIS,SynthesisFilter.NEWV") float s0 = samples[0];
185 @LOC("THIS,SynthesisFilter.NEWV") float s1 = samples[1];
186 @LOC("THIS,SynthesisFilter.NEWV") float s2 = samples[2];
187 @LOC("THIS,SynthesisFilter.NEWV") float s3 = samples[3];
188 @LOC("THIS,SynthesisFilter.NEWV") float s4 = samples[4];
189 @LOC("THIS,SynthesisFilter.NEWV") float s5 = samples[5];
190 @LOC("THIS,SynthesisFilter.NEWV") float s6 = samples[6];
191 @LOC("THIS,SynthesisFilter.NEWV") float s7 = samples[7];
192 @LOC("THIS,SynthesisFilter.NEWV") float s8 = samples[8];
193 @LOC("THIS,SynthesisFilter.NEWV") float s9 = samples[9];
194 @LOC("THIS,SynthesisFilter.NEWV") float s10 = samples[10];
195 @LOC("THIS,SynthesisFilter.NEWV") float s11 = samples[11];
196 @LOC("THIS,SynthesisFilter.NEWV") float s12 = samples[12];
197 @LOC("THIS,SynthesisFilter.NEWV") float s13 = samples[13];
198 @LOC("THIS,SynthesisFilter.NEWV") float s14 = samples[14];
199 @LOC("THIS,SynthesisFilter.NEWV") float s15 = samples[15];
200 @LOC("THIS,SynthesisFilter.NEWV") float s16 = samples[16];
201 @LOC("THIS,SynthesisFilter.NEWV") float s17 = samples[17];
202 @LOC("THIS,SynthesisFilter.NEWV") float s18 = samples[18];
203 @LOC("THIS,SynthesisFilter.NEWV") float s19 = samples[19];
204 @LOC("THIS,SynthesisFilter.NEWV") float s20 = samples[20];
205 @LOC("THIS,SynthesisFilter.NEWV") float s21 = samples[21];
206 @LOC("THIS,SynthesisFilter.NEWV") float s22 = samples[22];
207 @LOC("THIS,SynthesisFilter.NEWV") float s23 = samples[23];
208 @LOC("THIS,SynthesisFilter.NEWV") float s24 = samples[24];
209 @LOC("THIS,SynthesisFilter.NEWV") float s25 = samples[25];
210 @LOC("THIS,SynthesisFilter.NEWV") float s26 = samples[26];
211 @LOC("THIS,SynthesisFilter.NEWV") float s27 = samples[27];
212 @LOC("THIS,SynthesisFilter.NEWV") float s28 = samples[28];
213 @LOC("THIS,SynthesisFilter.NEWV") float s29 = samples[29];
214 @LOC("THIS,SynthesisFilter.NEWV") float s30 = samples[30];
215 @LOC("THIS,SynthesisFilter.NEWV") float s31 = samples[31];
217 @LOC("THIS,SynthesisFilter.NEWV") float p0 = s0 + s31;
218 @LOC("THIS,SynthesisFilter.NEWV") float p1 = s1 + s30;
219 @LOC("THIS,SynthesisFilter.NEWV") float p2 = s2 + s29;
220 @LOC("THIS,SynthesisFilter.NEWV") float p3 = s3 + s28;
221 @LOC("THIS,SynthesisFilter.NEWV") float p4 = s4 + s27;
222 @LOC("THIS,SynthesisFilter.NEWV") float p5 = s5 + s26;
223 @LOC("THIS,SynthesisFilter.NEWV") float p6 = s6 + s25;
224 @LOC("THIS,SynthesisFilter.NEWV") float p7 = s7 + s24;
225 @LOC("THIS,SynthesisFilter.NEWV") float p8 = s8 + s23;
226 @LOC("THIS,SynthesisFilter.NEWV") float p9 = s9 + s22;
227 @LOC("THIS,SynthesisFilter.NEWV") float p10 = s10 + s21;
228 @LOC("THIS,SynthesisFilter.NEWV") float p11 = s11 + s20;
229 @LOC("THIS,SynthesisFilter.NEWV") float p12 = s12 + s19;
230 @LOC("THIS,SynthesisFilter.NEWV") float p13 = s13 + s18;
231 @LOC("THIS,SynthesisFilter.NEWV") float p14 = s14 + s17;
232 @LOC("THIS,SynthesisFilter.NEWV") float p15 = s15 + s16;
234 @LOC("THIS,SynthesisFilter.NEWV") float pp0 = p0 + p15;
235 @LOC("THIS,SynthesisFilter.NEWV") float pp1 = p1 + p14;
236 @LOC("THIS,SynthesisFilter.NEWV") float pp2 = p2 + p13;
237 @LOC("THIS,SynthesisFilter.NEWV") float pp3 = p3 + p12;
238 @LOC("THIS,SynthesisFilter.NEWV") float pp4 = p4 + p11;
239 @LOC("THIS,SynthesisFilter.NEWV") float pp5 = p5 + p10;
240 @LOC("THIS,SynthesisFilter.NEWV") float pp6 = p6 + p9;
241 @LOC("THIS,SynthesisFilter.NEWV") float pp7 = p7 + p8;
242 @LOC("THIS,SynthesisFilter.NEWV") float pp8 = (p0 - p15) * cos1_32;
243 @LOC("THIS,SynthesisFilter.NEWV") float pp9 = (p1 - p14) * cos3_32;
244 @LOC("THIS,SynthesisFilter.NEWV") float pp10 = (p2 - p13) * cos5_32;
245 @LOC("THIS,SynthesisFilter.NEWV") float pp11 = (p3 - p12) * cos7_32;
246 @LOC("THIS,SynthesisFilter.NEWV") float pp12 = (p4 - p11) * cos9_32;
247 @LOC("THIS,SynthesisFilter.NEWV") float pp13 = (p5 - p10) * cos11_32;
248 @LOC("THIS,SynthesisFilter.NEWV") float pp14 = (p6 - p9) * cos13_32;
249 @LOC("THIS,SynthesisFilter.NEWV") float pp15 = (p7 - p8) * cos15_32;
255 p4 = (pp0 - pp7) * cos1_16;
256 p5 = (pp1 - pp6) * cos3_16;
257 p6 = (pp2 - pp5) * cos5_16;
258 p7 = (pp3 - pp4) * cos7_16;
263 p12 = (pp8 - pp15) * cos1_16;
264 p13 = (pp9 - pp14) * cos3_16;
265 p14 = (pp10 - pp13) * cos5_16;
266 p15 = (pp11 - pp12) * cos7_16;
270 pp2 = (p0 - p3) * cos1_8;
271 pp3 = (p1 - p2) * cos3_8;
274 pp6 = (p4 - p7) * cos1_8;
275 pp7 = (p5 - p6) * cos3_8;
278 pp10 = (p8 - p11) * cos1_8;
279 pp11 = (p9 - p10) * cos3_8;
282 pp14 = (p12 - p15) * cos1_8;
283 pp15 = (p13 - p14) * cos3_8;
286 p1 = (pp0 - pp1) * cos1_4;
288 p3 = (pp2 - pp3) * cos1_4;
290 p5 = (pp4 - pp5) * cos1_4;
292 p7 = (pp6 - pp7) * cos1_4;
294 p9 = (pp8 - pp9) * cos1_4;
296 p11 = (pp10 - pp11) * cos1_4;
298 p13 = (pp12 - pp13) * cos1_4;
300 p15 = (pp14 - pp15) * cos1_4;
302 // this is pretty insane coding
303 @LOC("THIS,SynthesisFilter.NEWV") float tmp1;
304 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
305 new_v27/* 44-17 */= -p6 - p7 - p4;
306 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
307 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
308 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
309 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
310 new_v25/* 42-17 */= tmp1 - p12;
311 new_v31/* 48-17 */= -p0;
313 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
315 p0 = (s0 - s31) * cos1_64;
316 p1 = (s1 - s30) * cos3_64;
317 p2 = (s2 - s29) * cos5_64;
318 p3 = (s3 - s28) * cos7_64;
319 p4 = (s4 - s27) * cos9_64;
320 p5 = (s5 - s26) * cos11_64;
321 p6 = (s6 - s25) * cos13_64;
322 p7 = (s7 - s24) * cos15_64;
323 p8 = (s8 - s23) * cos17_64;
324 p9 = (s9 - s22) * cos19_64;
325 p10 = (s10 - s21) * cos21_64;
326 p11 = (s11 - s20) * cos23_64;
327 p12 = (s12 - s19) * cos25_64;
328 p13 = (s13 - s18) * cos27_64;
329 p14 = (s14 - s17) * cos29_64;
330 p15 = (s15 - s16) * cos31_64;
340 pp8 = (p0 - p15) * cos1_32;
341 pp9 = (p1 - p14) * cos3_32;
342 pp10 = (p2 - p13) * cos5_32;
343 pp11 = (p3 - p12) * cos7_32;
344 pp12 = (p4 - p11) * cos9_32;
345 pp13 = (p5 - p10) * cos11_32;
346 pp14 = (p6 - p9) * cos13_32;
347 pp15 = (p7 - p8) * cos15_32;
353 p4 = (pp0 - pp7) * cos1_16;
354 p5 = (pp1 - pp6) * cos3_16;
355 p6 = (pp2 - pp5) * cos5_16;
356 p7 = (pp3 - pp4) * cos7_16;
361 p12 = (pp8 - pp15) * cos1_16;
362 p13 = (pp9 - pp14) * cos3_16;
363 p14 = (pp10 - pp13) * cos5_16;
364 p15 = (pp11 - pp12) * cos7_16;
368 pp2 = (p0 - p3) * cos1_8;
369 pp3 = (p1 - p2) * cos3_8;
372 pp6 = (p4 - p7) * cos1_8;
373 pp7 = (p5 - p6) * cos3_8;
376 pp10 = (p8 - p11) * cos1_8;
377 pp11 = (p9 - p10) * cos3_8;
380 pp14 = (p12 - p15) * cos1_8;
381 pp15 = (p13 - p14) * cos3_8;
384 p1 = (pp0 - pp1) * cos1_4;
386 p3 = (pp2 - pp3) * cos1_4;
388 p5 = (pp4 - pp5) * cos1_4;
390 p7 = (pp6 - pp7) * cos1_4;
392 p9 = (pp8 - pp9) * cos1_4;
394 p11 = (pp10 - pp11) * cos1_4;
396 p13 = (pp12 - pp13) * cos1_4;
398 p15 = (pp14 - pp15) * cos1_4;
400 // manually doing something that a compiler should handle sucks
401 // coding like this is hard to read
402 @LOC("THIS,SynthesisFilter.NEWV") float tmp2;
403 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
404 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
405 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
406 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
408 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
409 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
410 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
411 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
412 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
413 new_v28/* 45-17 */= tmp1 - tmp2;
415 // insert V[0-15] (== new_v[0-15]) into actual v:
416 // float[] x2 = actual_v + actual_write_pos;
417 // float dest[] = actual_v; v2
419 @LOC("THIS,SynthesisFilter.NEWV") int pos = actual_write_pos;
421 v2[0 + pos] = new_v0;
422 v2[16 + pos] = new_v1;
423 v2[32 + pos] = new_v2;
424 v2[48 + pos] = new_v3;
425 v2[64 + pos] = new_v4;
426 v2[80 + pos] = new_v5;
427 v2[96 + pos] = new_v6;
428 v2[112 + pos] = new_v7;
429 v2[128 + pos] = new_v8;
430 v2[144 + pos] = new_v9;
431 v2[160 + pos] = new_v10;
432 v2[176 + pos] = new_v11;
433 v2[192 + pos] = new_v12;
434 v2[208 + pos] = new_v13;
435 v2[224 + pos] = new_v14;
436 v2[240 + pos] = new_v15;
438 // V[16] is always 0.0:
439 v2[256 + pos] = 0.0f;
441 // insert V[17-31] (== -new_v[15-1]) into actual v:
442 v2[272 + pos] = -new_v15;
443 v2[288 + pos] = -new_v14;
444 v2[304 + pos] = -new_v13;
445 v2[320 + pos] = -new_v12;
446 v2[336 + pos] = -new_v11;
447 v2[352 + pos] = -new_v10;
448 v2[368 + pos] = -new_v9;
449 v2[384 + pos] = -new_v8;
450 v2[400 + pos] = -new_v7;
451 v2[416 + pos] = -new_v6;
452 v2[432 + pos] = -new_v5;
453 v2[448 + pos] = -new_v4;
454 v2[464 + pos] = -new_v3;
455 v2[480 + pos] = -new_v2;
456 v2[496 + pos] = -new_v1;
458 // insert V[32] (== -new_v[0]) into other v:
459 // dest = (actual_v == v1) ? v2 : v1;
461 v1[0 + pos] = -new_v0;
462 // insert V[33-48] (== new_v[16-31]) into other v:
463 v1[16 + pos] = new_v16;
464 v1[32 + pos] = new_v17;
465 v1[48 + pos] = new_v18;
466 v1[64 + pos] = new_v19;
467 v1[80 + pos] = new_v20;
468 v1[96 + pos] = new_v21;
469 v1[112 + pos] = new_v22;
470 v1[128 + pos] = new_v23;
471 v1[144 + pos] = new_v24;
472 v1[160 + pos] = new_v25;
473 v1[176 + pos] = new_v26;
474 v1[192 + pos] = new_v27;
475 v1[208 + pos] = new_v28;
476 v1[224 + pos] = new_v29;
477 v1[240 + pos] = new_v30;
478 v1[256 + pos] = new_v31;
480 // insert V[49-63] (== new_v[30-16]) into other v:
481 v1[272 + pos] = new_v30;
482 v1[288 + pos] = new_v29;
483 v1[304 + pos] = new_v28;
484 v1[320 + pos] = new_v27;
485 v1[336 + pos] = new_v26;
486 v1[352 + pos] = new_v25;
487 v1[368 + pos] = new_v24;
488 v1[384 + pos] = new_v23;
489 v1[400 + pos] = new_v22;
490 v1[416 + pos] = new_v21;
491 v1[432 + pos] = new_v20;
492 v1[448 + pos] = new_v19;
493 v1[464 + pos] = new_v18;
494 v1[480 + pos] = new_v17;
495 v1[496 + pos] = new_v16;
501 prev2[0 + pos] = new_v0;
502 prev2[16 + pos] = new_v1;
503 prev2[32 + pos] = new_v2;
504 prev2[48 + pos] = new_v3;
505 prev2[64 + pos] = new_v4;
506 prev2[80 + pos] = new_v5;
507 prev2[96 + pos] = new_v6;
508 prev2[112 + pos] = new_v7;
509 prev2[128 + pos] = new_v8;
510 prev2[144 + pos] = new_v9;
511 prev2[160 + pos] = new_v10;
512 prev2[176 + pos] = new_v11;
513 prev2[192 + pos] = new_v12;
514 prev2[208 + pos] = new_v13;
515 prev2[224 + pos] = new_v14;
516 prev2[240 + pos] = new_v15;
518 // V[16] is always 0.0:
519 prev2[256 + pos] = 0.0f;
521 // insert V[17-31] (== -new_v[15-1]) into actual v:
522 prev2[272 + pos] = -new_v15;
523 prev2[288 + pos] = -new_v14;
524 prev2[304 + pos] = -new_v13;
525 prev2[320 + pos] = -new_v12;
526 prev2[336 + pos] = -new_v11;
527 prev2[352 + pos] = -new_v10;
528 prev2[368 + pos] = -new_v9;
529 prev2[384 + pos] = -new_v8;
530 prev2[400 + pos] = -new_v7;
531 prev2[416 + pos] = -new_v6;
532 prev2[432 + pos] = -new_v5;
533 prev2[448 + pos] = -new_v4;
534 prev2[464 + pos] = -new_v3;
535 prev2[480 + pos] = -new_v2;
536 prev2[496 + pos] = -new_v1;
538 // insert V[32] (== -new_v[0]) into other v:
539 // dest = (actual_v == v1) ? v2 : v1;
541 prev1[0 + pos] = -new_v0;
542 // insert V[33-48] (== new_v[16-31]) into other v:
543 prev1[16 + pos] = new_v16;
544 prev1[32 + pos] = new_v17;
545 prev1[48 + pos] = new_v18;
546 prev1[64 + pos] = new_v19;
547 prev1[80 + pos] = new_v20;
548 prev1[96 + pos] = new_v21;
549 prev1[112 + pos] = new_v22;
550 prev1[128 + pos] = new_v23;
551 prev1[144 + pos] = new_v24;
552 prev1[160 + pos] = new_v25;
553 prev1[176 + pos] = new_v26;
554 prev1[192 + pos] = new_v27;
555 prev1[208 + pos] = new_v28;
556 prev1[224 + pos] = new_v29;
557 prev1[240 + pos] = new_v30;
558 prev1[256 + pos] = new_v31;
560 // insert V[49-63] (== new_v[30-16]) into other v:
561 prev1[272 + pos] = new_v30;
562 prev1[288 + pos] = new_v29;
563 prev1[304 + pos] = new_v28;
564 prev1[320 + pos] = new_v27;
565 prev1[336 + pos] = new_v26;
566 prev1[352 + pos] = new_v25;
567 prev1[368 + pos] = new_v24;
568 prev1[384 + pos] = new_v23;
569 prev1[400 + pos] = new_v22;
570 prev1[416 + pos] = new_v21;
571 prev1[432 + pos] = new_v20;
572 prev1[448 + pos] = new_v19;
573 prev1[464 + pos] = new_v18;
574 prev1[480 + pos] = new_v17;
575 prev1[496 + pos] = new_v16;
578 private void compute_new_v1_v2() {
580 @LOC("THIS,SynthesisFilter.NEWV") float new_v0 = 0.0f;
581 @LOC("THIS,SynthesisFilter.NEWV") float new_v1 = 0.0f;
582 @LOC("THIS,SynthesisFilter.NEWV") float new_v2 = 0.0f;
583 @LOC("THIS,SynthesisFilter.NEWV") float new_v3 = 0.0f;
584 @LOC("THIS,SynthesisFilter.NEWV") float new_v4 = 0.0f;
585 @LOC("THIS,SynthesisFilter.NEWV") float new_v5 = 0.0f;
586 @LOC("THIS,SynthesisFilter.NEWV") float new_v6 = 0.0f;
587 @LOC("THIS,SynthesisFilter.NEWV") float new_v7 = 0.0f;
588 @LOC("THIS,SynthesisFilter.NEWV") float new_v8 = 0.0f;
589 @LOC("THIS,SynthesisFilter.NEWV") float new_v9 = 0.0f;
590 @LOC("THIS,SynthesisFilter.NEWV") float new_v10 = 0.0f;
591 @LOC("THIS,SynthesisFilter.NEWV") float new_v11 = 0.0f;
592 @LOC("THIS,SynthesisFilter.NEWV") float new_v12 = 0.0f;
593 @LOC("THIS,SynthesisFilter.NEWV") float new_v13 = 0.0f;
594 @LOC("THIS,SynthesisFilter.NEWV") float new_v14 = 0.0f;
595 @LOC("THIS,SynthesisFilter.NEWV") float new_v15 = 0.0f;
596 @LOC("THIS,SynthesisFilter.NEWV") float new_v16 = 0.0f;
597 @LOC("THIS,SynthesisFilter.NEWV") float new_v17 = 0.0f;
598 @LOC("THIS,SynthesisFilter.NEWV") float new_v18 = 0.0f;
599 @LOC("THIS,SynthesisFilter.NEWV") float new_v19 = 0.0f;
600 @LOC("THIS,SynthesisFilter.NEWV") float new_v20 = 0.0f;
601 @LOC("THIS,SynthesisFilter.NEWV") float new_v21 = 0.0f;
602 @LOC("THIS,SynthesisFilter.NEWV") float new_v22 = 0.0f;
603 @LOC("THIS,SynthesisFilter.NEWV") float new_v23 = 0.0f;
604 @LOC("THIS,SynthesisFilter.NEWV") float new_v24 = 0.0f;
605 @LOC("THIS,SynthesisFilter.NEWV") float new_v25 = 0.0f;
606 @LOC("THIS,SynthesisFilter.NEWV") float new_v26 = 0.0f;
607 @LOC("THIS,SynthesisFilter.NEWV") float new_v27 = 0.0f;
608 @LOC("THIS,SynthesisFilter.NEWV") float new_v28 = 0.0f;
609 @LOC("THIS,SynthesisFilter.NEWV") float new_v29 = 0.0f;
610 @LOC("THIS,SynthesisFilter.NEWV") float new_v30 = 0.0f;
611 @LOC("THIS,SynthesisFilter.NEWV") float new_v31 = 0.0f;
613 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
614 // 3-A.2 in ISO DIS 11172-3
615 // float[] p = new float[16];
616 // float[] pp = new float[16];
618 // float[] s = samples;
620 @LOC("THIS,SynthesisFilter.NEWV") float s0 = samples[0];
621 @LOC("THIS,SynthesisFilter.NEWV") float s1 = samples[1];
622 @LOC("THIS,SynthesisFilter.NEWV") float s2 = samples[2];
623 @LOC("THIS,SynthesisFilter.NEWV") float s3 = samples[3];
624 @LOC("THIS,SynthesisFilter.NEWV") float s4 = samples[4];
625 @LOC("THIS,SynthesisFilter.NEWV") float s5 = samples[5];
626 @LOC("THIS,SynthesisFilter.NEWV") float s6 = samples[6];
627 @LOC("THIS,SynthesisFilter.NEWV") float s7 = samples[7];
628 @LOC("THIS,SynthesisFilter.NEWV") float s8 = samples[8];
629 @LOC("THIS,SynthesisFilter.NEWV") float s9 = samples[9];
630 @LOC("THIS,SynthesisFilter.NEWV") float s10 = samples[10];
631 @LOC("THIS,SynthesisFilter.NEWV") float s11 = samples[11];
632 @LOC("THIS,SynthesisFilter.NEWV") float s12 = samples[12];
633 @LOC("THIS,SynthesisFilter.NEWV") float s13 = samples[13];
634 @LOC("THIS,SynthesisFilter.NEWV") float s14 = samples[14];
635 @LOC("THIS,SynthesisFilter.NEWV") float s15 = samples[15];
636 @LOC("THIS,SynthesisFilter.NEWV") float s16 = samples[16];
637 @LOC("THIS,SynthesisFilter.NEWV") float s17 = samples[17];
638 @LOC("THIS,SynthesisFilter.NEWV") float s18 = samples[18];
639 @LOC("THIS,SynthesisFilter.NEWV") float s19 = samples[19];
640 @LOC("THIS,SynthesisFilter.NEWV") float s20 = samples[20];
641 @LOC("THIS,SynthesisFilter.NEWV") float s21 = samples[21];
642 @LOC("THIS,SynthesisFilter.NEWV") float s22 = samples[22];
643 @LOC("THIS,SynthesisFilter.NEWV") float s23 = samples[23];
644 @LOC("THIS,SynthesisFilter.NEWV") float s24 = samples[24];
645 @LOC("THIS,SynthesisFilter.NEWV") float s25 = samples[25];
646 @LOC("THIS,SynthesisFilter.NEWV") float s26 = samples[26];
647 @LOC("THIS,SynthesisFilter.NEWV") float s27 = samples[27];
648 @LOC("THIS,SynthesisFilter.NEWV") float s28 = samples[28];
649 @LOC("THIS,SynthesisFilter.NEWV") float s29 = samples[29];
650 @LOC("THIS,SynthesisFilter.NEWV") float s30 = samples[30];
651 @LOC("THIS,SynthesisFilter.NEWV") float s31 = samples[31];
653 @LOC("THIS,SynthesisFilter.NEWV") float p0 = s0 + s31;
654 @LOC("THIS,SynthesisFilter.NEWV") float p1 = s1 + s30;
655 @LOC("THIS,SynthesisFilter.NEWV") float p2 = s2 + s29;
656 @LOC("THIS,SynthesisFilter.NEWV") float p3 = s3 + s28;
657 @LOC("THIS,SynthesisFilter.NEWV") float p4 = s4 + s27;
658 @LOC("THIS,SynthesisFilter.NEWV") float p5 = s5 + s26;
659 @LOC("THIS,SynthesisFilter.NEWV") float p6 = s6 + s25;
660 @LOC("THIS,SynthesisFilter.NEWV") float p7 = s7 + s24;
661 @LOC("THIS,SynthesisFilter.NEWV") float p8 = s8 + s23;
662 @LOC("THIS,SynthesisFilter.NEWV") float p9 = s9 + s22;
663 @LOC("THIS,SynthesisFilter.NEWV") float p10 = s10 + s21;
664 @LOC("THIS,SynthesisFilter.NEWV") float p11 = s11 + s20;
665 @LOC("THIS,SynthesisFilter.NEWV") float p12 = s12 + s19;
666 @LOC("THIS,SynthesisFilter.NEWV") float p13 = s13 + s18;
667 @LOC("THIS,SynthesisFilter.NEWV") float p14 = s14 + s17;
668 @LOC("THIS,SynthesisFilter.NEWV") float p15 = s15 + s16;
670 @LOC("THIS,SynthesisFilter.NEWV") float pp0 = p0 + p15;
671 @LOC("THIS,SynthesisFilter.NEWV") float pp1 = p1 + p14;
672 @LOC("THIS,SynthesisFilter.NEWV") float pp2 = p2 + p13;
673 @LOC("THIS,SynthesisFilter.NEWV") float pp3 = p3 + p12;
674 @LOC("THIS,SynthesisFilter.NEWV") float pp4 = p4 + p11;
675 @LOC("THIS,SynthesisFilter.NEWV") float pp5 = p5 + p10;
676 @LOC("THIS,SynthesisFilter.NEWV") float pp6 = p6 + p9;
677 @LOC("THIS,SynthesisFilter.NEWV") float pp7 = p7 + p8;
678 @LOC("THIS,SynthesisFilter.NEWV") float pp8 = (p0 - p15) * cos1_32;
679 @LOC("THIS,SynthesisFilter.NEWV") float pp9 = (p1 - p14) * cos3_32;
680 @LOC("THIS,SynthesisFilter.NEWV") float pp10 = (p2 - p13) * cos5_32;
681 @LOC("THIS,SynthesisFilter.NEWV") float pp11 = (p3 - p12) * cos7_32;
682 @LOC("THIS,SynthesisFilter.NEWV") float pp12 = (p4 - p11) * cos9_32;
683 @LOC("THIS,SynthesisFilter.NEWV") float pp13 = (p5 - p10) * cos11_32;
684 @LOC("THIS,SynthesisFilter.NEWV") float pp14 = (p6 - p9) * cos13_32;
685 @LOC("THIS,SynthesisFilter.NEWV") float pp15 = (p7 - p8) * cos15_32;
691 p4 = (pp0 - pp7) * cos1_16;
692 p5 = (pp1 - pp6) * cos3_16;
693 p6 = (pp2 - pp5) * cos5_16;
694 p7 = (pp3 - pp4) * cos7_16;
699 p12 = (pp8 - pp15) * cos1_16;
700 p13 = (pp9 - pp14) * cos3_16;
701 p14 = (pp10 - pp13) * cos5_16;
702 p15 = (pp11 - pp12) * cos7_16;
706 pp2 = (p0 - p3) * cos1_8;
707 pp3 = (p1 - p2) * cos3_8;
710 pp6 = (p4 - p7) * cos1_8;
711 pp7 = (p5 - p6) * cos3_8;
714 pp10 = (p8 - p11) * cos1_8;
715 pp11 = (p9 - p10) * cos3_8;
718 pp14 = (p12 - p15) * cos1_8;
719 pp15 = (p13 - p14) * cos3_8;
722 p1 = (pp0 - pp1) * cos1_4;
724 p3 = (pp2 - pp3) * cos1_4;
726 p5 = (pp4 - pp5) * cos1_4;
728 p7 = (pp6 - pp7) * cos1_4;
730 p9 = (pp8 - pp9) * cos1_4;
732 p11 = (pp10 - pp11) * cos1_4;
734 p13 = (pp12 - pp13) * cos1_4;
736 p15 = (pp14 - pp15) * cos1_4;
738 // this is pretty insane coding
739 @LOC("THIS,SynthesisFilter.NEWV") float tmp1;
740 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
741 new_v27/* 44-17 */= -p6 - p7 - p4;
742 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
743 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
744 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
745 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
746 new_v25/* 42-17 */= tmp1 - p12;
747 new_v31/* 48-17 */= -p0;
749 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
751 p0 = (s0 - s31) * cos1_64;
752 p1 = (s1 - s30) * cos3_64;
753 p2 = (s2 - s29) * cos5_64;
754 p3 = (s3 - s28) * cos7_64;
755 p4 = (s4 - s27) * cos9_64;
756 p5 = (s5 - s26) * cos11_64;
757 p6 = (s6 - s25) * cos13_64;
758 p7 = (s7 - s24) * cos15_64;
759 p8 = (s8 - s23) * cos17_64;
760 p9 = (s9 - s22) * cos19_64;
761 p10 = (s10 - s21) * cos21_64;
762 p11 = (s11 - s20) * cos23_64;
763 p12 = (s12 - s19) * cos25_64;
764 p13 = (s13 - s18) * cos27_64;
765 p14 = (s14 - s17) * cos29_64;
766 p15 = (s15 - s16) * cos31_64;
776 pp8 = (p0 - p15) * cos1_32;
777 pp9 = (p1 - p14) * cos3_32;
778 pp10 = (p2 - p13) * cos5_32;
779 pp11 = (p3 - p12) * cos7_32;
780 pp12 = (p4 - p11) * cos9_32;
781 pp13 = (p5 - p10) * cos11_32;
782 pp14 = (p6 - p9) * cos13_32;
783 pp15 = (p7 - p8) * cos15_32;
789 p4 = (pp0 - pp7) * cos1_16;
790 p5 = (pp1 - pp6) * cos3_16;
791 p6 = (pp2 - pp5) * cos5_16;
792 p7 = (pp3 - pp4) * cos7_16;
797 p12 = (pp8 - pp15) * cos1_16;
798 p13 = (pp9 - pp14) * cos3_16;
799 p14 = (pp10 - pp13) * cos5_16;
800 p15 = (pp11 - pp12) * cos7_16;
804 pp2 = (p0 - p3) * cos1_8;
805 pp3 = (p1 - p2) * cos3_8;
808 pp6 = (p4 - p7) * cos1_8;
809 pp7 = (p5 - p6) * cos3_8;
812 pp10 = (p8 - p11) * cos1_8;
813 pp11 = (p9 - p10) * cos3_8;
816 pp14 = (p12 - p15) * cos1_8;
817 pp15 = (p13 - p14) * cos3_8;
820 p1 = (pp0 - pp1) * cos1_4;
822 p3 = (pp2 - pp3) * cos1_4;
824 p5 = (pp4 - pp5) * cos1_4;
826 p7 = (pp6 - pp7) * cos1_4;
828 p9 = (pp8 - pp9) * cos1_4;
830 p11 = (pp10 - pp11) * cos1_4;
832 p13 = (pp12 - pp13) * cos1_4;
834 p15 = (pp14 - pp15) * cos1_4;
836 // manually doing something that a compiler should handle sucks
837 // coding like this is hard to read
838 @LOC("THIS,SynthesisFilter.NEWV") float tmp2;
839 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
840 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
841 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
842 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
844 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
845 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
846 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
847 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
848 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
849 new_v28/* 45-17 */= tmp1 - tmp2;
851 // insert V[0-15] (== new_v[0-15]) into actual v:
852 // float[] x2 = actual_v + actual_write_pos;
853 // float dest[] = actual_v; actual_v=v1;
855 @LOC("THIS,SynthesisFilter.NEWV") int pos = actual_write_pos;
857 v1[0 + pos] = new_v0;
858 v1[16 + pos] = new_v1;
859 v1[32 + pos] = new_v2;
860 v1[48 + pos] = new_v3;
861 v1[64 + pos] = new_v4;
862 v1[80 + pos] = new_v5;
863 v1[96 + pos] = new_v6;
864 v1[112 + pos] = new_v7;
865 v1[128 + pos] = new_v8;
866 v1[144 + pos] = new_v9;
867 v1[160 + pos] = new_v10;
868 v1[176 + pos] = new_v11;
869 v1[192 + pos] = new_v12;
870 v1[208 + pos] = new_v13;
871 v1[224 + pos] = new_v14;
872 v1[240 + pos] = new_v15;
874 // V[16] is always 0.0:
875 v1[256 + pos] = 0.0f;
877 // insert V[17-31] (== -new_v[15-1]) into actual v:
878 v1[272 + pos] = -new_v15;
879 v1[288 + pos] = -new_v14;
880 v1[304 + pos] = -new_v13;
881 v1[320 + pos] = -new_v12;
882 v1[336 + pos] = -new_v11;
883 v1[352 + pos] = -new_v10;
884 v1[368 + pos] = -new_v9;
885 v1[384 + pos] = -new_v8;
886 v1[400 + pos] = -new_v7;
887 v1[416 + pos] = -new_v6;
888 v1[432 + pos] = -new_v5;
889 v1[448 + pos] = -new_v4;
890 v1[464 + pos] = -new_v3;
891 v1[480 + pos] = -new_v2;
892 v1[496 + pos] = -new_v1;
894 // insert V[32] (== -new_v[0]) into other v:
895 // dest = (actual_v == v1) ? v2 : v1;
897 v2[0 + pos] = -new_v0;
898 // insert V[33-48] (== new_v[16-31]) into other v:
899 v2[16 + pos] = new_v16;
900 v2[32 + pos] = new_v17;
901 v2[48 + pos] = new_v18;
902 v2[64 + pos] = new_v19;
903 v2[80 + pos] = new_v20;
904 v2[96 + pos] = new_v21;
905 v2[112 + pos] = new_v22;
906 v2[128 + pos] = new_v23;
907 v2[144 + pos] = new_v24;
908 v2[160 + pos] = new_v25;
909 v2[176 + pos] = new_v26;
910 v2[192 + pos] = new_v27;
911 v2[208 + pos] = new_v28;
912 v2[224 + pos] = new_v29;
913 v2[240 + pos] = new_v30;
914 v2[256 + pos] = new_v31;
916 // insert V[49-63] (== new_v[30-16]) into other v:
917 v2[272 + pos] = new_v30;
918 v2[288 + pos] = new_v29;
919 v2[304 + pos] = new_v28;
920 v2[320 + pos] = new_v27;
921 v2[336 + pos] = new_v26;
922 v2[352 + pos] = new_v25;
923 v2[368 + pos] = new_v24;
924 v2[384 + pos] = new_v23;
925 v2[400 + pos] = new_v22;
926 v2[416 + pos] = new_v21;
927 v2[432 + pos] = new_v20;
928 v2[448 + pos] = new_v19;
929 v2[464 + pos] = new_v18;
930 v2[480 + pos] = new_v17;
931 v2[496 + pos] = new_v16;
937 prev1[0 + pos] = new_v0;
938 prev1[16 + pos] = new_v1;
939 prev1[32 + pos] = new_v2;
940 prev1[48 + pos] = new_v3;
941 prev1[64 + pos] = new_v4;
942 prev1[80 + pos] = new_v5;
943 prev1[96 + pos] = new_v6;
944 prev1[112 + pos] = new_v7;
945 prev1[128 + pos] = new_v8;
946 prev1[144 + pos] = new_v9;
947 prev1[160 + pos] = new_v10;
948 prev1[176 + pos] = new_v11;
949 prev1[192 + pos] = new_v12;
950 prev1[208 + pos] = new_v13;
951 prev1[224 + pos] = new_v14;
952 prev1[240 + pos] = new_v15;
954 // V[16] is always 0.0:
955 prev1[256 + pos] = 0.0f;
957 // insert V[17-31] (== -new_v[15-1]) into actual v:
958 prev1[272 + pos] = -new_v15;
959 prev1[288 + pos] = -new_v14;
960 prev1[304 + pos] = -new_v13;
961 prev1[320 + pos] = -new_v12;
962 prev1[336 + pos] = -new_v11;
963 prev1[352 + pos] = -new_v10;
964 prev1[368 + pos] = -new_v9;
965 prev1[384 + pos] = -new_v8;
966 prev1[400 + pos] = -new_v7;
967 prev1[416 + pos] = -new_v6;
968 prev1[432 + pos] = -new_v5;
969 prev1[448 + pos] = -new_v4;
970 prev1[464 + pos] = -new_v3;
971 prev1[480 + pos] = -new_v2;
972 prev1[496 + pos] = -new_v1;
974 // insert V[32] (== -new_v[0]) into other v:
975 // dest = (actual_v == v1) ? v2 : v1;
977 prev2[0 + pos] = -new_v0;
978 // insert V[33-48] (== new_v[16-31]) into other v:
979 prev2[16 + pos] = new_v16;
980 prev2[32 + pos] = new_v17;
981 prev2[48 + pos] = new_v18;
982 prev2[64 + pos] = new_v19;
983 prev2[80 + pos] = new_v20;
984 prev2[96 + pos] = new_v21;
985 prev2[112 + pos] = new_v22;
986 prev2[128 + pos] = new_v23;
987 prev2[144 + pos] = new_v24;
988 prev2[160 + pos] = new_v25;
989 prev2[176 + pos] = new_v26;
990 prev2[192 + pos] = new_v27;
991 prev2[208 + pos] = new_v28;
992 prev2[224 + pos] = new_v29;
993 prev2[240 + pos] = new_v30;
994 prev2[256 + pos] = new_v31;
996 // insert V[49-63] (== new_v[30-16]) into other v:
997 prev2[272 + pos] = new_v30;
998 prev2[288 + pos] = new_v29;
999 prev2[304 + pos] = new_v28;
1000 prev2[320 + pos] = new_v27;
1001 prev2[336 + pos] = new_v26;
1002 prev2[352 + pos] = new_v25;
1003 prev2[368 + pos] = new_v24;
1004 prev2[384 + pos] = new_v23;
1005 prev2[400 + pos] = new_v22;
1006 prev2[416 + pos] = new_v21;
1007 prev2[432 + pos] = new_v20;
1008 prev2[448 + pos] = new_v19;
1009 prev2[464 + pos] = new_v18;
1010 prev2[480 + pos] = new_v17;
1011 prev2[496 + pos] = new_v16;
1015 * Compute PCM Samples.
1019 private float[] _tmpOut = new float[32];
1021 private void compute_pcm_samples0() {
1024 // final float[] vp = actual_v;
1026 // final float[] tmpOut = _tmpOut;
1027 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1029 // fat chance of having this loop unroll
1030 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1031 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1032 // final float[] dp = d16[i];
1034 (float) (((v1[0 + dvp] * d16[i][0]) + (v1[15 + dvp] * d16[i][1])
1035 + (v1[14 + dvp] * d16[i][2]) + (v1[13 + dvp] * d16[i][3])
1036 + (v1[12 + dvp] * d16[i][4]) + (v1[11 + dvp] * d16[i][5])
1037 + (v1[10 + dvp] * d16[i][6]) + (v1[9 + dvp] * d16[i][7])
1038 + (v1[8 + dvp] * d16[i][8]) + (v1[7 + dvp] * d16[i][9])
1039 + (v1[6 + dvp] * d16[i][10]) + (v1[5 + dvp] * d16[i][11])
1040 + (v1[4 + dvp] * d16[i][12]) + (v1[3 + dvp] * d16[i][13])
1041 + (v1[2 + dvp] * d16[i][14]) + (v1[1 + dvp] * d16[i][15])) * scalefactor);
1043 _tmpOut[i] = pcm_sample;
1048 // final float[] vp = actual_v;
1050 // final float[] tmpOut = _tmpOut;
1051 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1053 // fat chance of having this loop unroll
1054 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1055 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1056 // final float[] dp = d16[i];
1058 (float) (((v2[0 + dvp] * d16[i][0]) + (v2[15 + dvp] * d16[i][1])
1059 + (v2[14 + dvp] * d16[i][2]) + (v2[13 + dvp] * d16[i][3])
1060 + (v2[12 + dvp] * d16[i][4]) + (v2[11 + dvp] * d16[i][5])
1061 + (v2[10 + dvp] * d16[i][6]) + (v2[9 + dvp] * d16[i][7])
1062 + (v2[8 + dvp] * d16[i][8]) + (v2[7 + dvp] * d16[i][9])
1063 + (v2[6 + dvp] * d16[i][10]) + (v2[5 + dvp] * d16[i][11])
1064 + (v2[4 + dvp] * d16[i][12]) + (v2[3 + dvp] * d16[i][13])
1065 + (v2[2 + dvp] * d16[i][14]) + (v2[1 + dvp] * d16[i][15])) * scalefactor);
1067 _tmpOut[i] = pcm_sample;
1075 private void compute_pcm_samples1() {
1078 // final float[] vp = actual_v;
1080 // final float[] tmpOut = _tmpOut;
1081 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1083 // fat chance of having this loop unroll
1084 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1085 // final float[] dp = d16[i];
1086 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1089 (float) (((v1[1 + dvp] * d16[i][0]) + (v1[0 + dvp] * d16[i][1])
1090 + (v1[15 + dvp] * d16[i][2]) + (v1[14 + dvp] * d16[i][3])
1091 + (v1[13 + dvp] * d16[i][4]) + (v1[12 + dvp] * d16[i][5])
1092 + (v1[11 + dvp] * d16[i][6]) + (v1[10 + dvp] * d16[i][7])
1093 + (v1[9 + dvp] * d16[i][8]) + (v1[8 + dvp] * d16[i][9])
1094 + (v1[7 + dvp] * d16[i][10]) + (v1[6 + dvp] * d16[i][11])
1095 + (v1[5 + dvp] * d16[i][12]) + (v1[4 + dvp] * d16[i][13])
1096 + (v1[3 + dvp] * d16[i][14]) + (v1[2 + dvp] * d16[i][15])) * scalefactor);
1098 _tmpOut[i] = pcm_sample;
1103 // final float[] vp = actual_v;
1105 // final float[] tmpOut = _tmpOut;
1106 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1108 // fat chance of having this loop unroll
1109 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1110 // final float[] dp = d16[i];
1111 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1114 (float) (((v2[1 + dvp] * d16[i][0]) + (v2[0 + dvp] * d16[i][1])
1115 + (v2[15 + dvp] * d16[i][2]) + (v2[14 + dvp] * d16[i][3])
1116 + (v2[13 + dvp] * d16[i][4]) + (v2[12 + dvp] * d16[i][5])
1117 + (v2[11 + dvp] * d16[i][6]) + (v2[10 + dvp] * d16[i][7])
1118 + (v2[9 + dvp] * d16[i][8]) + (v2[8 + dvp] * d16[i][9])
1119 + (v2[7 + dvp] * d16[i][10]) + (v2[6 + dvp] * d16[i][11])
1120 + (v2[5 + dvp] * d16[i][12]) + (v2[4 + dvp] * d16[i][13])
1121 + (v2[3 + dvp] * d16[i][14]) + (v2[2 + dvp] * d16[i][15])) * scalefactor);
1123 _tmpOut[i] = pcm_sample;
1131 private void compute_pcm_samples2() {
1134 // final float[] vp = actual_v;
1136 // final float[] tmpOut = _tmpOut;
1137 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1139 // fat chance of having this loop unroll
1140 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1141 // final float[] dp = d16[i];
1142 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1145 (float) (((v1[2 + dvp] * d16[i][0]) + (v1[1 + dvp] * d16[i][1])
1146 + (v1[0 + dvp] * d16[i][2]) + (v1[15 + dvp] * d16[i][3])
1147 + (v1[14 + dvp] * d16[i][4]) + (v1[13 + dvp] * d16[i][5])
1148 + (v1[12 + dvp] * d16[i][6]) + (v1[11 + dvp] * d16[i][7])
1149 + (v1[10 + dvp] * d16[i][8]) + (v1[9 + dvp] * d16[i][9])
1150 + (v1[8 + dvp] * d16[i][10]) + (v1[7 + dvp] * d16[i][11])
1151 + (v1[6 + dvp] * d16[i][12]) + (v1[5 + dvp] * d16[i][13])
1152 + (v1[4 + dvp] * d16[i][14]) + (v1[3 + dvp] * d16[i][15])) * scalefactor);
1154 _tmpOut[i] = pcm_sample;
1159 // final float[] vp = actual_v;
1161 // final float[] tmpOut = _tmpOut;
1162 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1164 // fat chance of having this loop unroll
1165 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1166 // final float[] dp = d16[i];
1167 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1170 (float) (((v2[2 + dvp] * d16[i][0]) + (v2[1 + dvp] * d16[i][1])
1171 + (v2[0 + dvp] * d16[i][2]) + (v2[15 + dvp] * d16[i][3])
1172 + (v2[14 + dvp] * d16[i][4]) + (v2[13 + dvp] * d16[i][5])
1173 + (v2[12 + dvp] * d16[i][6]) + (v2[11 + dvp] * d16[i][7])
1174 + (v2[10 + dvp] * d16[i][8]) + (v2[9 + dvp] * d16[i][9])
1175 + (v2[8 + dvp] * d16[i][10]) + (v2[7 + dvp] * d16[i][11])
1176 + (v2[6 + dvp] * d16[i][12]) + (v2[5 + dvp] * d16[i][13])
1177 + (v2[4 + dvp] * d16[i][14]) + (v2[3 + dvp] * d16[i][15])) * scalefactor);
1179 _tmpOut[i] = pcm_sample;
1187 private void compute_pcm_samples3() {
1190 // final float[] vp = actual_v;
1193 // final float[] tmpOut = _tmpOut;
1194 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1196 // fat chance of having this loop unroll
1197 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1198 // final float[] dp = d16[i];
1199 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1202 (float) (((v1[3 + dvp] * d16[i][0]) + (v1[2 + dvp] * d16[i][1])
1203 + (v1[1 + dvp] * d16[i][2]) + (v1[0 + dvp] * d16[i][3])
1204 + (v1[15 + dvp] * d16[i][4]) + (v1[14 + dvp] * d16[i][5])
1205 + (v1[13 + dvp] * d16[i][6]) + (v1[12 + dvp] * d16[i][7])
1206 + (v1[11 + dvp] * d16[i][8]) + (v1[10 + dvp] * d16[i][9])
1207 + (v1[9 + dvp] * d16[i][10]) + (v1[8 + dvp] * d16[i][11])
1208 + (v1[7 + dvp] * d16[i][12]) + (v1[6 + dvp] * d16[i][13])
1209 + (v1[5 + dvp] * d16[i][14]) + (v1[4 + dvp] * d16[i][15])) * scalefactor);
1211 _tmpOut[i] = pcm_sample;
1216 // final float[] vp = actual_v;
1219 // final float[] tmpOut = _tmpOut;
1220 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1222 // fat chance of having this loop unroll
1223 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1224 // final float[] dp = d16[i];
1225 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1228 (float) (((v2[3 + dvp] * d16[i][0]) + (v2[2 + dvp] * d16[i][1])
1229 + (v2[1 + dvp] * d16[i][2]) + (v2[0 + dvp] * d16[i][3])
1230 + (v2[15 + dvp] * d16[i][4]) + (v2[14 + dvp] * d16[i][5])
1231 + (v2[13 + dvp] * d16[i][6]) + (v2[12 + dvp] * d16[i][7])
1232 + (v2[11 + dvp] * d16[i][8]) + (v2[10 + dvp] * d16[i][9])
1233 + (v2[9 + dvp] * d16[i][10]) + (v2[8 + dvp] * d16[i][11])
1234 + (v2[7 + dvp] * d16[i][12]) + (v2[6 + dvp] * d16[i][13])
1235 + (v2[5 + dvp] * d16[i][14]) + (v2[4 + dvp] * d16[i][15])) * scalefactor);
1237 _tmpOut[i] = pcm_sample;
1245 private void compute_pcm_samples4() {
1248 // final float[] vp = actual_v;
1251 // final float[] tmpOut = _tmpOut;
1252 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1254 // fat chance of having this loop unroll
1255 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1256 // final float[] dp = d16[i];
1257 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1260 (float) (((v1[4 + dvp] * d16[i][0]) + (v1[3 + dvp] * d16[i][1])
1261 + (v1[2 + dvp] * d16[i][2]) + (v1[1 + dvp] * d16[i][3]) + (v1[0 + dvp] * d16[i][4])
1262 + (v1[15 + dvp] * d16[i][5]) + (v1[14 + dvp] * d16[i][6])
1263 + (v1[13 + dvp] * d16[i][7]) + (v1[12 + dvp] * d16[i][8])
1264 + (v1[11 + dvp] * d16[i][9]) + (v1[10 + dvp] * d16[i][10])
1265 + (v1[9 + dvp] * d16[i][11]) + (v1[8 + dvp] * d16[i][12])
1266 + (v1[7 + dvp] * d16[i][13]) + (v1[6 + dvp] * d16[i][14]) + (v1[5 + dvp] * d16[i][15])) * scalefactor);
1268 _tmpOut[i] = pcm_sample;
1273 // final float[] vp = actual_v;
1276 // final float[] tmpOut = _tmpOut;
1277 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1279 // fat chance of having this loop unroll
1280 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1281 // final float[] dp = d16[i];
1282 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1285 (float) (((v2[4 + dvp] * d16[i][0]) + (v2[3 + dvp] * d16[i][1])
1286 + (v2[2 + dvp] * d16[i][2]) + (v2[1 + dvp] * d16[i][3]) + (v2[0 + dvp] * d16[i][4])
1287 + (v2[15 + dvp] * d16[i][5]) + (v2[14 + dvp] * d16[i][6])
1288 + (v2[13 + dvp] * d16[i][7]) + (v2[12 + dvp] * d16[i][8])
1289 + (v2[11 + dvp] * d16[i][9]) + (v2[10 + dvp] * d16[i][10])
1290 + (v2[9 + dvp] * d16[i][11]) + (v2[8 + dvp] * d16[i][12])
1291 + (v2[7 + dvp] * d16[i][13]) + (v2[6 + dvp] * d16[i][14]) + (v2[5 + dvp] * d16[i][15])) * scalefactor);
1293 _tmpOut[i] = pcm_sample;
1301 private void compute_pcm_samples5() {
1304 // final float[] vp = actual_v;
1307 // final float[] tmpOut = _tmpOut;
1308 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1310 // fat chance of having this loop unroll
1311 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1312 // final float[] dp = d16[i];
1313 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1316 (float) (((v1[5 + dvp] * d16[i][0]) + (v1[4 + dvp] * d16[i][1])
1317 + (v1[3 + dvp] * d16[i][2]) + (v1[2 + dvp] * d16[i][3]) + (v1[1 + dvp] * d16[i][4])
1318 + (v1[0 + dvp] * d16[i][5]) + (v1[15 + dvp] * d16[i][6])
1319 + (v1[14 + dvp] * d16[i][7]) + (v1[13 + dvp] * d16[i][8])
1320 + (v1[12 + dvp] * d16[i][9]) + (v1[11 + dvp] * d16[i][10])
1321 + (v1[10 + dvp] * d16[i][11]) + (v1[9 + dvp] * d16[i][12])
1322 + (v1[8 + dvp] * d16[i][13]) + (v1[7 + dvp] * d16[i][14]) + (v1[6 + dvp] * d16[i][15])) * scalefactor);
1324 _tmpOut[i] = pcm_sample;
1329 // final float[] vp = actual_v;
1332 // final float[] tmpOut = _tmpOut;
1333 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1335 // fat chance of having this loop unroll
1336 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1337 // final float[] dp = d16[i];
1338 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1341 (float) (((v2[5 + dvp] * d16[i][0]) + (v2[4 + dvp] * d16[i][1])
1342 + (v2[3 + dvp] * d16[i][2]) + (v2[2 + dvp] * d16[i][3]) + (v2[1 + dvp] * d16[i][4])
1343 + (v2[0 + dvp] * d16[i][5]) + (v2[15 + dvp] * d16[i][6])
1344 + (v2[14 + dvp] * d16[i][7]) + (v2[13 + dvp] * d16[i][8])
1345 + (v2[12 + dvp] * d16[i][9]) + (v2[11 + dvp] * d16[i][10])
1346 + (v2[10 + dvp] * d16[i][11]) + (v2[9 + dvp] * d16[i][12])
1347 + (v2[8 + dvp] * d16[i][13]) + (v2[7 + dvp] * d16[i][14]) + (v2[6 + dvp] * d16[i][15])) * scalefactor);
1349 _tmpOut[i] = pcm_sample;
1357 private void compute_pcm_samples6() {
1361 // final float[] vp = actual_v;
1363 // final float[] tmpOut = _tmpOut;
1364 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1366 // fat chance of having this loop unroll
1367 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1368 // final float[] dp = d16[i];
1369 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1372 (float) (((v1[6 + dvp] * d16[i][0]) + (v1[5 + dvp] * d16[i][1])
1373 + (v1[4 + dvp] * d16[i][2]) + (v1[3 + dvp] * d16[i][3]) + (v1[2 + dvp] * d16[i][4])
1374 + (v1[1 + dvp] * d16[i][5]) + (v1[0 + dvp] * d16[i][6])
1375 + (v1[15 + dvp] * d16[i][7]) + (v1[14 + dvp] * d16[i][8])
1376 + (v1[13 + dvp] * d16[i][9]) + (v1[12 + dvp] * d16[i][10])
1377 + (v1[11 + dvp] * d16[i][11]) + (v1[10 + dvp] * d16[i][12])
1378 + (v1[9 + dvp] * d16[i][13]) + (v1[8 + dvp] * d16[i][14]) + (v1[7 + dvp] * d16[i][15])) * scalefactor);
1380 _tmpOut[i] = pcm_sample;
1386 // final float[] vp = actual_v;
1388 // final float[] tmpOut = _tmpOut;
1389 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1391 // fat chance of having this loop unroll
1392 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1393 // final float[] dp = d16[i];
1394 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1397 (float) (((v2[6 + dvp] * d16[i][0]) + (v2[5 + dvp] * d16[i][1])
1398 + (v2[4 + dvp] * d16[i][2]) + (v2[3 + dvp] * d16[i][3]) + (v2[2 + dvp] * d16[i][4])
1399 + (v2[1 + dvp] * d16[i][5]) + (v2[0 + dvp] * d16[i][6])
1400 + (v2[15 + dvp] * d16[i][7]) + (v2[14 + dvp] * d16[i][8])
1401 + (v2[13 + dvp] * d16[i][9]) + (v2[12 + dvp] * d16[i][10])
1402 + (v2[11 + dvp] * d16[i][11]) + (v2[10 + dvp] * d16[i][12])
1403 + (v2[9 + dvp] * d16[i][13]) + (v2[8 + dvp] * d16[i][14]) + (v2[7 + dvp] * d16[i][15])) * scalefactor);
1405 _tmpOut[i] = pcm_sample;
1413 private void compute_pcm_samples7() {
1416 // final float[] vp = actual_v;
1419 // final float[] tmpOut = _tmpOut;
1420 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1422 // fat chance of having this loop unroll
1423 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1424 // final float[] dp = d16[i];
1425 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1428 (float) (((v1[7 + dvp] * d16[i][0]) + (v1[6 + dvp] * d16[i][1])
1429 + (v1[5 + dvp] * d16[i][2]) + (v1[4 + dvp] * d16[i][3]) + (v1[3 + dvp] * d16[i][4])
1430 + (v1[2 + dvp] * d16[i][5]) + (v1[1 + dvp] * d16[i][6]) + (v1[0 + dvp] * d16[i][7])
1431 + (v1[15 + dvp] * d16[i][8]) + (v1[14 + dvp] * d16[i][9])
1432 + (v1[13 + dvp] * d16[i][10]) + (v1[12 + dvp] * d16[i][11])
1433 + (v1[11 + dvp] * d16[i][12]) + (v1[10 + dvp] * d16[i][13])
1434 + (v1[9 + dvp] * d16[i][14]) + (v1[8 + dvp] * d16[i][15])) * scalefactor);
1436 _tmpOut[i] = pcm_sample;
1441 // final float[] vp = actual_v;
1444 // final float[] tmpOut = _tmpOut;
1445 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1447 // fat chance of having this loop unroll
1448 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1449 // final float[] dp = d16[i];
1450 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1453 (float) (((v2[7 + dvp] * d16[i][0]) + (v2[6 + dvp] * d16[i][1])
1454 + (v2[5 + dvp] * d16[i][2]) + (v2[4 + dvp] * d16[i][3]) + (v2[3 + dvp] * d16[i][4])
1455 + (v2[2 + dvp] * d16[i][5]) + (v2[1 + dvp] * d16[i][6]) + (v2[0 + dvp] * d16[i][7])
1456 + (v2[15 + dvp] * d16[i][8]) + (v2[14 + dvp] * d16[i][9])
1457 + (v2[13 + dvp] * d16[i][10]) + (v2[12 + dvp] * d16[i][11])
1458 + (v2[11 + dvp] * d16[i][12]) + (v2[10 + dvp] * d16[i][13])
1459 + (v2[9 + dvp] * d16[i][14]) + (v2[8 + dvp] * d16[i][15])) * scalefactor);
1461 _tmpOut[i] = pcm_sample;
1469 private void compute_pcm_samples8() {
1473 // final float[] vp = actual_v;
1476 // final float[] tmpOut = _tmpOut;
1477 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1479 // fat chance of having this loop unroll
1480 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1481 // final float[] dp = d16[i];
1482 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1485 (float) (((v1[8 + dvp] * d16[i][0]) + (v1[7 + dvp] * d16[i][1])
1486 + (v1[6 + dvp] * d16[i][2]) + (v1[5 + dvp] * d16[i][3]) + (v1[4 + dvp] * d16[i][4])
1487 + (v1[3 + dvp] * d16[i][5]) + (v1[2 + dvp] * d16[i][6]) + (v1[1 + dvp] * d16[i][7])
1488 + (v1[0 + dvp] * d16[i][8]) + (v1[15 + dvp] * d16[i][9])
1489 + (v1[14 + dvp] * d16[i][10]) + (v1[13 + dvp] * d16[i][11])
1490 + (v1[12 + dvp] * d16[i][12]) + (v1[11 + dvp] * d16[i][13])
1491 + (v1[10 + dvp] * d16[i][14]) + (v1[9 + dvp] * d16[i][15])) * scalefactor);
1493 _tmpOut[i] = pcm_sample;
1499 // final float[] vp = actual_v;
1502 // final float[] tmpOut = _tmpOut;
1503 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1505 // fat chance of having this loop unroll
1506 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1507 // final float[] dp = d16[i];
1508 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1511 (float) (((v2[8 + dvp] * d16[i][0]) + (v2[7 + dvp] * d16[i][1])
1512 + (v2[6 + dvp] * d16[i][2]) + (v2[5 + dvp] * d16[i][3]) + (v2[4 + dvp] * d16[i][4])
1513 + (v2[3 + dvp] * d16[i][5]) + (v2[2 + dvp] * d16[i][6]) + (v2[1 + dvp] * d16[i][7])
1514 + (v2[0 + dvp] * d16[i][8]) + (v2[15 + dvp] * d16[i][9])
1515 + (v2[14 + dvp] * d16[i][10]) + (v2[13 + dvp] * d16[i][11])
1516 + (v2[12 + dvp] * d16[i][12]) + (v2[11 + dvp] * d16[i][13])
1517 + (v2[10 + dvp] * d16[i][14]) + (v2[9 + dvp] * d16[i][15])) * scalefactor);
1519 _tmpOut[i] = pcm_sample;
1527 private void compute_pcm_samples9() {
1530 // final float[] vp = actual_v;
1533 // final float[] tmpOut = _tmpOut;
1534 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1536 // fat chance of having this loop unroll
1537 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1538 // final float[] dp = d16[i];
1539 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1542 (float) (((v1[9 + dvp] * d16[i][0]) + (v1[8 + dvp] * d16[i][1])
1543 + (v1[7 + dvp] * d16[i][2]) + (v1[6 + dvp] * d16[i][3]) + (v1[5 + dvp] * d16[i][4])
1544 + (v1[4 + dvp] * d16[i][5]) + (v1[3 + dvp] * d16[i][6]) + (v1[2 + dvp] * d16[i][7])
1545 + (v1[1 + dvp] * d16[i][8]) + (v1[0 + dvp] * d16[i][9])
1546 + (v1[15 + dvp] * d16[i][10]) + (v1[14 + dvp] * d16[i][11])
1547 + (v1[13 + dvp] * d16[i][12]) + (v1[12 + dvp] * d16[i][13])
1548 + (v1[11 + dvp] * d16[i][14]) + (v1[10 + dvp] * d16[i][15])) * scalefactor);
1550 _tmpOut[i] = pcm_sample;
1555 // final float[] vp = actual_v;
1558 // final float[] tmpOut = _tmpOut;
1559 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1561 // fat chance of having this loop unroll
1562 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1563 // final float[] dp = d16[i];
1564 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1567 (float) (((v2[9 + dvp] * d16[i][0]) + (v2[8 + dvp] * d16[i][1])
1568 + (v2[7 + dvp] * d16[i][2]) + (v2[6 + dvp] * d16[i][3]) + (v2[5 + dvp] * d16[i][4])
1569 + (v2[4 + dvp] * d16[i][5]) + (v2[3 + dvp] * d16[i][6]) + (v2[2 + dvp] * d16[i][7])
1570 + (v2[1 + dvp] * d16[i][8]) + (v2[0 + dvp] * d16[i][9])
1571 + (v2[15 + dvp] * d16[i][10]) + (v2[14 + dvp] * d16[i][11])
1572 + (v2[13 + dvp] * d16[i][12]) + (v2[12 + dvp] * d16[i][13])
1573 + (v2[11 + dvp] * d16[i][14]) + (v2[10 + dvp] * d16[i][15])) * scalefactor);
1575 _tmpOut[i] = pcm_sample;
1583 private void compute_pcm_samples10() {
1585 // final float[] vp = actual_v;
1587 // final float[] tmpOut = _tmpOut;
1588 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1590 // fat chance of having this loop unroll
1591 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1592 // final float[] dp = d16[i];
1593 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1596 (float) (((v1[10 + dvp] * d16[i][0]) + (v1[9 + dvp] * d16[i][1])
1597 + (v1[8 + dvp] * d16[i][2]) + (v1[7 + dvp] * d16[i][3]) + (v1[6 + dvp] * d16[i][4])
1598 + (v1[5 + dvp] * d16[i][5]) + (v1[4 + dvp] * d16[i][6]) + (v1[3 + dvp] * d16[i][7])
1599 + (v1[2 + dvp] * d16[i][8]) + (v1[1 + dvp] * d16[i][9])
1600 + (v1[0 + dvp] * d16[i][10]) + (v1[15 + dvp] * d16[i][11])
1601 + (v1[14 + dvp] * d16[i][12]) + (v1[13 + dvp] * d16[i][13])
1602 + (v1[12 + dvp] * d16[i][14]) + (v1[11 + dvp] * d16[i][15])) * scalefactor);
1604 _tmpOut[i] = pcm_sample;
1609 // final float[] vp = actual_v;
1611 // final float[] tmpOut = _tmpOut;
1612 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1614 // fat chance of having this loop unroll
1615 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1616 // final float[] dp = d16[i];
1617 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1620 (float) (((v2[10 + dvp] * d16[i][0]) + (v2[9 + dvp] * d16[i][1])
1621 + (v2[8 + dvp] * d16[i][2]) + (v2[7 + dvp] * d16[i][3]) + (v2[6 + dvp] * d16[i][4])
1622 + (v2[5 + dvp] * d16[i][5]) + (v2[4 + dvp] * d16[i][6]) + (v2[3 + dvp] * d16[i][7])
1623 + (v2[2 + dvp] * d16[i][8]) + (v2[1 + dvp] * d16[i][9])
1624 + (v2[0 + dvp] * d16[i][10]) + (v2[15 + dvp] * d16[i][11])
1625 + (v2[14 + dvp] * d16[i][12]) + (v2[13 + dvp] * d16[i][13])
1626 + (v2[12 + dvp] * d16[i][14]) + (v2[11 + dvp] * d16[i][15])) * scalefactor);
1628 _tmpOut[i] = pcm_sample;
1636 private void compute_pcm_samples11() {
1639 // final float[] vp = actual_v;
1642 // final float[] tmpOut = _tmpOut;
1643 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1645 // fat chance of having this loop unroll
1646 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1647 // final float[] dp = d16[i];
1648 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1651 (float) (((v1[11 + dvp] * d16[i][0]) + (v1[10 + dvp] * d16[i][1])
1652 + (v1[9 + dvp] * d16[i][2]) + (v1[8 + dvp] * d16[i][3]) + (v1[7 + dvp] * d16[i][4])
1653 + (v1[6 + dvp] * d16[i][5]) + (v1[5 + dvp] * d16[i][6]) + (v1[4 + dvp] * d16[i][7])
1654 + (v1[3 + dvp] * d16[i][8]) + (v1[2 + dvp] * d16[i][9])
1655 + (v1[1 + dvp] * d16[i][10]) + (v1[0 + dvp] * d16[i][11])
1656 + (v1[15 + dvp] * d16[i][12]) + (v1[14 + dvp] * d16[i][13])
1657 + (v1[13 + dvp] * d16[i][14]) + (v1[12 + dvp] * d16[i][15])) * scalefactor);
1659 _tmpOut[i] = pcm_sample;
1664 // final float[] vp = actual_v;
1667 // final float[] tmpOut = _tmpOut;
1668 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1670 // fat chance of having this loop unroll
1671 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1672 // final float[] dp = d16[i];
1673 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1676 (float) (((v2[11 + dvp] * d16[i][0]) + (v2[10 + dvp] * d16[i][1])
1677 + (v2[9 + dvp] * d16[i][2]) + (v2[8 + dvp] * d16[i][3]) + (v2[7 + dvp] * d16[i][4])
1678 + (v2[6 + dvp] * d16[i][5]) + (v2[5 + dvp] * d16[i][6]) + (v2[4 + dvp] * d16[i][7])
1679 + (v2[3 + dvp] * d16[i][8]) + (v2[2 + dvp] * d16[i][9])
1680 + (v2[1 + dvp] * d16[i][10]) + (v2[0 + dvp] * d16[i][11])
1681 + (v2[15 + dvp] * d16[i][12]) + (v2[14 + dvp] * d16[i][13])
1682 + (v2[13 + dvp] * d16[i][14]) + (v2[12 + dvp] * d16[i][15])) * scalefactor);
1684 _tmpOut[i] = pcm_sample;
1692 private void compute_pcm_samples12() {
1695 // final float[] vp = actual_v;
1697 // final float[] tmpOut = _tmpOut;
1698 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1700 // fat chance of having this loop unroll
1701 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1702 // final float[] dp = d16[i];
1703 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1706 (float) (((v1[12 + dvp] * d16[i][0]) + (v1[11 + dvp] * d16[i][1])
1707 + (v1[10 + dvp] * d16[i][2]) + (v1[9 + dvp] * d16[i][3])
1708 + (v1[8 + dvp] * d16[i][4]) + (v1[7 + dvp] * d16[i][5]) + (v1[6 + dvp] * d16[i][6])
1709 + (v1[5 + dvp] * d16[i][7]) + (v1[4 + dvp] * d16[i][8]) + (v1[3 + dvp] * d16[i][9])
1710 + (v1[2 + dvp] * d16[i][10]) + (v1[1 + dvp] * d16[i][11])
1711 + (v1[0 + dvp] * d16[i][12]) + (v1[15 + dvp] * d16[i][13])
1712 + (v1[14 + dvp] * d16[i][14]) + (v1[13 + dvp] * d16[i][15])) * scalefactor);
1714 _tmpOut[i] = pcm_sample;
1719 // final float[] vp = actual_v;
1721 // final float[] tmpOut = _tmpOut;
1722 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1724 // fat chance of having this loop unroll
1725 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1726 // final float[] dp = d16[i];
1727 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1730 (float) (((v2[12 + dvp] * d16[i][0]) + (v2[11 + dvp] * d16[i][1])
1731 + (v2[10 + dvp] * d16[i][2]) + (v2[9 + dvp] * d16[i][3])
1732 + (v2[8 + dvp] * d16[i][4]) + (v2[7 + dvp] * d16[i][5]) + (v2[6 + dvp] * d16[i][6])
1733 + (v2[5 + dvp] * d16[i][7]) + (v2[4 + dvp] * d16[i][8]) + (v2[3 + dvp] * d16[i][9])
1734 + (v2[2 + dvp] * d16[i][10]) + (v2[1 + dvp] * d16[i][11])
1735 + (v2[0 + dvp] * d16[i][12]) + (v2[15 + dvp] * d16[i][13])
1736 + (v2[14 + dvp] * d16[i][14]) + (v2[13 + dvp] * d16[i][15])) * scalefactor);
1738 _tmpOut[i] = pcm_sample;
1746 private void compute_pcm_samples13() {
1749 // final float[] vp = actual_v;
1752 // final float[] tmpOut = _tmpOut;
1753 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1755 // fat chance of having this loop unroll
1756 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1757 // final float[] dp = d16[i];
1758 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1761 (float) (((v1[13 + dvp] * d16[i][0]) + (v1[12 + dvp] * d16[i][1])
1762 + (v1[11 + dvp] * d16[i][2]) + (v1[10 + dvp] * d16[i][3])
1763 + (v1[9 + dvp] * d16[i][4]) + (v1[8 + dvp] * d16[i][5]) + (v1[7 + dvp] * d16[i][6])
1764 + (v1[6 + dvp] * d16[i][7]) + (v1[5 + dvp] * d16[i][8]) + (v1[4 + dvp] * d16[i][9])
1765 + (v1[3 + dvp] * d16[i][10]) + (v1[2 + dvp] * d16[i][11])
1766 + (v1[1 + dvp] * d16[i][12]) + (v1[0 + dvp] * d16[i][13])
1767 + (v1[15 + dvp] * d16[i][14]) + (v1[14 + dvp] * d16[i][15])) * scalefactor);
1769 _tmpOut[i] = pcm_sample;
1774 // final float[] vp = actual_v;
1777 // final float[] tmpOut = _tmpOut;
1778 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1780 // fat chance of having this loop unroll
1781 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1782 // final float[] dp = d16[i];
1783 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1786 (float) (((v2[13 + dvp] * d16[i][0]) + (v2[12 + dvp] * d16[i][1])
1787 + (v2[11 + dvp] * d16[i][2]) + (v2[10 + dvp] * d16[i][3])
1788 + (v2[9 + dvp] * d16[i][4]) + (v2[8 + dvp] * d16[i][5]) + (v2[7 + dvp] * d16[i][6])
1789 + (v2[6 + dvp] * d16[i][7]) + (v2[5 + dvp] * d16[i][8]) + (v2[4 + dvp] * d16[i][9])
1790 + (v2[3 + dvp] * d16[i][10]) + (v2[2 + dvp] * d16[i][11])
1791 + (v2[1 + dvp] * d16[i][12]) + (v2[0 + dvp] * d16[i][13])
1792 + (v2[15 + dvp] * d16[i][14]) + (v2[14 + dvp] * d16[i][15])) * scalefactor);
1794 _tmpOut[i] = pcm_sample;
1802 private void compute_pcm_samples14() {
1805 // final float[] vp = actual_v;
1808 // final float[] tmpOut = _tmpOut;
1809 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1811 // fat chance of having this loop unroll
1812 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1813 // final float[] dp = d16[i];
1814 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1817 (float) (((v1[14 + dvp] * d16[i][0]) + (v1[13 + dvp] * d16[i][1])
1818 + (v1[12 + dvp] * d16[i][2]) + (v1[11 + dvp] * d16[i][3])
1819 + (v1[10 + dvp] * d16[i][4]) + (v1[9 + dvp] * d16[i][5])
1820 + (v1[8 + dvp] * d16[i][6]) + (v1[7 + dvp] * d16[i][7]) + (v1[6 + dvp] * d16[i][8])
1821 + (v1[5 + dvp] * d16[i][9]) + (v1[4 + dvp] * d16[i][10])
1822 + (v1[3 + dvp] * d16[i][11]) + (v1[2 + dvp] * d16[i][12])
1823 + (v1[1 + dvp] * d16[i][13]) + (v1[0 + dvp] * d16[i][14]) + (v1[15 + dvp] * d16[i][15])) * scalefactor);
1825 _tmpOut[i] = pcm_sample;
1830 // final float[] vp = actual_v;
1833 // final float[] tmpOut = _tmpOut;
1834 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1836 // fat chance of having this loop unroll
1837 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1838 // final float[] dp = d16[i];
1839 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1842 (float) (((v2[14 + dvp] * d16[i][0]) + (v2[13 + dvp] * d16[i][1])
1843 + (v2[12 + dvp] * d16[i][2]) + (v2[11 + dvp] * d16[i][3])
1844 + (v2[10 + dvp] * d16[i][4]) + (v2[9 + dvp] * d16[i][5])
1845 + (v2[8 + dvp] * d16[i][6]) + (v2[7 + dvp] * d16[i][7]) + (v2[6 + dvp] * d16[i][8])
1846 + (v2[5 + dvp] * d16[i][9]) + (v2[4 + dvp] * d16[i][10])
1847 + (v2[3 + dvp] * d16[i][11]) + (v2[2 + dvp] * d16[i][12])
1848 + (v2[1 + dvp] * d16[i][13]) + (v2[0 + dvp] * d16[i][14]) + (v2[15 + dvp] * d16[i][15])) * scalefactor);
1850 _tmpOut[i] = pcm_sample;
1858 private void compute_pcm_samples15() {
1860 // final float[] vp = actual_v;
1863 // final float[] tmpOut = _tmpOut;
1864 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1866 // fat chance of having this loop unroll
1867 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1868 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1869 // final float d16[i][] = d16[i];
1871 (float) (((v1[15 + dvp] * d16[i][0]) + (v1[14 + dvp] * d16[i][1])
1872 + (v1[13 + dvp] * d16[i][2]) + (v1[12 + dvp] * d16[i][3])
1873 + (v1[11 + dvp] * d16[i][4]) + (v1[10 + dvp] * d16[i][5])
1874 + (v1[9 + dvp] * d16[i][6]) + (v1[8 + dvp] * d16[i][7]) + (v1[7 + dvp] * d16[i][8])
1875 + (v1[6 + dvp] * d16[i][9]) + (v1[5 + dvp] * d16[i][10])
1876 + (v1[4 + dvp] * d16[i][11]) + (v1[3 + dvp] * d16[i][12])
1877 + (v1[2 + dvp] * d16[i][13]) + (v1[1 + dvp] * d16[i][14]) + (v1[0 + dvp] * d16[i][15])) * scalefactor);
1879 _tmpOut[i] = pcm_sample;
1883 // final float[] vp = actual_v;
1886 // final float[] tmpOut = _tmpOut;
1887 @LOC("THIS,SynthesisFilter.NEWV") int dvp = 0;
1889 // fat chance of having this loop unroll
1890 for (@LOC("THIS,SynthesisFilter.NEWV") int i = 0; i < 32; i++) {
1891 @LOC("THIS,SynthesisFilter.V2") float pcm_sample;
1892 // final float d16[i][] = d16[i];
1894 (float) (((v2[15 + dvp] * d16[i][0]) + (v2[14 + dvp] * d16[i][1])
1895 + (v2[13 + dvp] * d16[i][2]) + (v2[12 + dvp] * d16[i][3])
1896 + (v2[11 + dvp] * d16[i][4]) + (v2[10 + dvp] * d16[i][5])
1897 + (v2[9 + dvp] * d16[i][6]) + (v2[8 + dvp] * d16[i][7]) + (v2[7 + dvp] * d16[i][8])
1898 + (v2[6 + dvp] * d16[i][9]) + (v2[5 + dvp] * d16[i][10])
1899 + (v2[4 + dvp] * d16[i][11]) + (v2[3 + dvp] * d16[i][12])
1900 + (v2[2 + dvp] * d16[i][13]) + (v2[1 + dvp] * d16[i][14]) + (v2[0 + dvp] * d16[i][15])) * scalefactor);
1902 _tmpOut[i] = pcm_sample;
1909 private void compute_pcm_samples() {
1911 switch (actual_write_pos) {
1913 compute_pcm_samples0();
1916 compute_pcm_samples1();
1919 compute_pcm_samples2();
1922 compute_pcm_samples3();
1925 compute_pcm_samples4();
1928 compute_pcm_samples5();
1931 compute_pcm_samples6();
1934 compute_pcm_samples7();
1937 compute_pcm_samples8();
1940 compute_pcm_samples9();
1943 compute_pcm_samples10();
1946 compute_pcm_samples11();
1949 compute_pcm_samples12();
1952 compute_pcm_samples13();
1955 compute_pcm_samples14();
1958 compute_pcm_samples15();
1962 // if (buffer != null) {
1963 // buffer.appendSamples(channel, _tmpOut);
1965 SampleBufferWrapper.appendSamples(channel, _tmpOut);
1968 * // MDM: I was considering putting in quality control for // low-spec
1969 * CPUs, but the performance gain (about 10-15%) // did not justify the
1970 * considerable drop in audio quality. switch (inc) { case 16:
1971 * buffer.appendSamples(channel, tmpOut); break; case 32: for (int i=0;
1972 * i<16; i++) { buffer.append(channel, (short)tmpOut[i]);
1973 * buffer.append(channel, (short)tmpOut[i]); } break; case 64: for (int i=0;
1974 * i<8; i++) { buffer.append(channel, (short)tmpOut[i]);
1975 * buffer.append(channel, (short)tmpOut[i]); buffer.append(channel,
1976 * (short)tmpOut[i]); buffer.append(channel, (short)tmpOut[i]); } break;
1982 @LATTICE("THIS<C,C*,THISLOC=THIS")
1983 public void clear() {
1985 SSJAVA.arrayinit(v1, 0);
1986 SSJAVA.arrayinit(v2, 0);
1987 // copy previous v1,v2
1989 for (@LOC("THIS,SynthesisFilter.V") int i = 0; i < prev1.length; i++) {
1992 for (@LOC("THIS,SynthesisFilter.V") int i = 0; i < prev2.length; i++) {
1995 // clear out previous buffer
1996 SSJAVA.arrayinit(prev1, 0);
1997 SSJAVA.arrayinit(prev2, 0);
1998 SSJAVA.arrayinit(samples, 0);
1999 SSJAVA.arrayinit(_tmpOut, 0);
2003 * Calculate 32 PCM samples and put the into the Obuffer-object.
2006 public void calculate_pcm_samples() {
2008 // System.out.println("#calculate_pcm_samples::actual_write_pos=" + actual_write_pos);
2011 compute_new_v1_v2();
2013 compute_new_v2_v1();
2016 // System.out.println("1.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
2018 // System.out.println("2.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
2019 compute_pcm_samples();
2020 // System.out.println("3.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
2022 actual_write_pos = (actual_write_pos + 1) & 0xf;
2023 // System.out.println("actual_write_pos="+actual_write_pos);
2024 // actual_v = (actual_v == v1) ? v2 : v1;
2032 // initialize samples[]:
2033 // for (register float *floatp = samples + 32; floatp > samples; )
2034 // *--floatp = 0.0f;
2036 // MDM: this may not be necessary. The Layer III decoder always
2037 // outputs 32 subband samples, but I haven't checked layer I & II.
2038 // for (@LOC("C") int p = 0; p < 32; p++){
2039 // samples[p] = 0.0f;
2041 SSJAVA.arrayinit(samples, 0);
2044 private static final double MY_PI = 3.14159265358979323846;
2045 private static final float cos1_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 64.0)));
2046 private static final float cos3_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 64.0)));
2047 private static final float cos5_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 64.0)));
2048 private static final float cos7_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 64.0)));
2049 private static final float cos9_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 64.0)));
2050 private static final float cos11_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 64.0)));
2051 private static final float cos13_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 64.0)));
2052 private static final float cos15_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 64.0)));
2053 private static final float cos17_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 17.0 / 64.0)));
2054 private static final float cos19_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 19.0 / 64.0)));
2055 private static final float cos21_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 21.0 / 64.0)));
2056 private static final float cos23_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 23.0 / 64.0)));
2057 private static final float cos25_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 25.0 / 64.0)));
2058 private static final float cos27_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 27.0 / 64.0)));
2059 private static final float cos29_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 29.0 / 64.0)));
2060 private static final float cos31_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 31.0 / 64.0)));
2061 private static final float cos1_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 32.0)));
2062 private static final float cos3_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 32.0)));
2063 private static final float cos5_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 32.0)));
2064 private static final float cos7_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 32.0)));
2065 private static final float cos9_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 32.0)));
2066 private static final float cos11_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 32.0)));
2067 private static final float cos13_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 32.0)));
2068 private static final float cos15_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 32.0)));
2069 private static final float cos1_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 16.0)));
2070 private static final float cos3_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 16.0)));
2071 private static final float cos5_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 16.0)));
2072 private static final float cos7_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 16.0)));
2073 private static final float cos1_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 8.0)));
2074 private static final float cos3_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 8.0)));
2075 private static final float cos1_4 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 4.0)));
2077 // Note: These values are not in the same order
2078 // as in Annex 3-B.3 of the ISO/IEC DIS 11172-3
2079 // private float d[] = {0.000000000, -4.000442505};
2082 * d[] split into subarrays of length 16. This provides for more faster access
2083 * by allowing a block of 16 to be addressed with constant offset.
2087 private final static float d16[][] = null;
2090 * Converts a 1D array into a number of smaller arrays. This is used to
2091 * achieve offset + constant indexing into an array. Each sub-array represents
2092 * a block of values of the original array.
2095 * The array to split up into blocks.
2097 * The size of the blocks to split the array into. This must be an
2098 * exact divisor of the length of the array, or some data will be
2099 * lost from the main array.
2101 * @return An array of arrays in which each element in the returned array will
2102 * be of length <code>blockSize</code>.
2104 static private float[][] splitArray(final float[] array, final int blockSize) {
2105 int size = array.length / blockSize;
2106 float[][] split = new float[size][];
2107 for (int i = 0; i < size; i++) {
2108 split[i] = subArray(array, i * blockSize, blockSize);
2114 * Returns a subarray of an existing array.
2117 * The array to retrieve a subarra from.
2119 * The offset in the array that corresponds to the first index of the
2122 * The number of indeces in the subarray.
2123 * @return The subarray, which may be of length 0.
2125 static private float[] subArray(final float[] array, final int offs, int len) {
2126 if (offs + len > array.length) {
2127 len = array.length - offs;
2133 float[] subarray = new float[len];
2134 for (int i = 0; i < len; i++) {
2135 subarray[i] = array[offs + i];
2141 // The original data for d[]. This data is loaded from a file
2142 // to reduce the overall package size and to improve performance.
2144 static final float d[] = { 0.000000000f, -0.000442505f, 0.003250122f, -0.007003784f,
2145 0.031082153f, -0.078628540f, 0.100311279f, -0.572036743f, 1.144989014f, 0.572036743f,
2146 0.100311279f, 0.078628540f, 0.031082153f, 0.007003784f, 0.003250122f, 0.000442505f,
2147 -0.000015259f, -0.000473022f, 0.003326416f, -0.007919312f, 0.030517578f, -0.084182739f,
2148 0.090927124f, -0.600219727f, 1.144287109f, 0.543823242f, 0.108856201f, 0.073059082f,
2149 0.031478882f, 0.006118774f, 0.003173828f, 0.000396729f, -0.000015259f, -0.000534058f,
2150 0.003387451f, -0.008865356f, 0.029785156f, -0.089706421f, 0.080688477f, -0.628295898f,
2151 1.142211914f, 0.515609741f, 0.116577148f, 0.067520142f, 0.031738281f, 0.005294800f,
2152 0.003082275f, 0.000366211f, -0.000015259f, -0.000579834f, 0.003433228f, -0.009841919f,
2153 0.028884888f, -0.095169067f, 0.069595337f, -0.656219482f, 1.138763428f, 0.487472534f,
2154 0.123474121f, 0.061996460f, 0.031845093f, 0.004486084f, 0.002990723f, 0.000320435f,
2155 -0.000015259f, -0.000625610f, 0.003463745f, -0.010848999f, 0.027801514f, -0.100540161f,
2156 0.057617188f, -0.683914185f, 1.133926392f, 0.459472656f, 0.129577637f, 0.056533813f,
2157 0.031814575f, 0.003723145f, 0.002899170f, 0.000289917f, -0.000015259f, -0.000686646f,
2158 0.003479004f, -0.011886597f, 0.026535034f, -0.105819702f, 0.044784546f, -0.711318970f,
2159 1.127746582f, 0.431655884f, 0.134887695f, 0.051132202f, 0.031661987f, 0.003005981f,
2160 0.002792358f, 0.000259399f, -0.000015259f, -0.000747681f, 0.003479004f, -0.012939453f,
2161 0.025085449f, -0.110946655f, 0.031082153f, -0.738372803f, 1.120223999f, 0.404083252f,
2162 0.139450073f, 0.045837402f, 0.031387329f, 0.002334595f, 0.002685547f, 0.000244141f,
2163 -0.000030518f, -0.000808716f, 0.003463745f, -0.014022827f, 0.023422241f, -0.115921021f,
2164 0.016510010f, -0.765029907f, 1.111373901f, 0.376800537f, 0.143264771f, 0.040634155f,
2165 0.031005859f, 0.001693726f, 0.002578735f, 0.000213623f, -0.000030518f, -0.000885010f,
2166 0.003417969f, -0.015121460f, 0.021575928f, -0.120697021f, 0.001068115f, -0.791213989f,
2167 1.101211548f, 0.349868774f, 0.146362305f, 0.035552979f, 0.030532837f, 0.001098633f,
2168 0.002456665f, 0.000198364f, -0.000030518f, -0.000961304f, 0.003372192f, -0.016235352f,
2169 0.019531250f, -0.125259399f, -0.015228271f, -0.816864014f, 1.089782715f, 0.323318481f,
2170 0.148773193f, 0.030609131f, 0.029937744f, 0.000549316f, 0.002349854f, 0.000167847f,
2171 -0.000030518f, -0.001037598f, 0.003280640f, -0.017349243f, 0.017257690f, -0.129562378f,
2172 -0.032379150f, -0.841949463f, 1.077117920f, 0.297210693f, 0.150497437f, 0.025817871f,
2173 0.029281616f, 0.000030518f, 0.002243042f, 0.000152588f, -0.000045776f, -0.001113892f,
2174 0.003173828f, -0.018463135f, 0.014801025f, -0.133590698f, -0.050354004f, -0.866363525f,
2175 1.063217163f, 0.271591187f, 0.151596069f, 0.021179199f, 0.028533936f, -0.000442505f,
2176 0.002120972f, 0.000137329f, -0.000045776f, -0.001205444f, 0.003051758f, -0.019577026f,
2177 0.012115479f, -0.137298584f, -0.069168091f, -0.890090942f, 1.048156738f, 0.246505737f,
2178 0.152069092f, 0.016708374f, 0.027725220f, -0.000869751f, 0.002014160f, 0.000122070f,
2179 -0.000061035f, -0.001296997f, 0.002883911f, -0.020690918f, 0.009231567f, -0.140670776f,
2180 -0.088775635f, -0.913055420f, 1.031936646f, 0.221984863f, 0.151962280f, 0.012420654f,
2181 0.026840210f, -0.001266479f, 0.001907349f, 0.000106812f, -0.000061035f, -0.001388550f,
2182 0.002700806f, -0.021789551f, 0.006134033f, -0.143676758f, -0.109161377f, -0.935195923f,
2183 1.014617920f, 0.198059082f, 0.151306152f, 0.008316040f, 0.025909424f, -0.001617432f,
2184 0.001785278f, 0.000106812f, -0.000076294f, -0.001480103f, 0.002487183f, -0.022857666f,
2185 0.002822876f, -0.146255493f, -0.130310059f, -0.956481934f, 0.996246338f, 0.174789429f,
2186 0.150115967f, 0.004394531f, 0.024932861f, -0.001937866f, 0.001693726f, 0.000091553f,
2187 -0.000076294f, -0.001586914f, 0.002227783f, -0.023910522f, -0.000686646f, -0.148422241f,
2188 -0.152206421f, -0.976852417f, 0.976852417f, 0.152206421f, 0.148422241f, 0.000686646f,
2189 0.023910522f, -0.002227783f, 0.001586914f, 0.000076294f, -0.000091553f, -0.001693726f,
2190 0.001937866f, -0.024932861f, -0.004394531f, -0.150115967f, -0.174789429f, -0.996246338f,
2191 0.956481934f, 0.130310059f, 0.146255493f, -0.002822876f, 0.022857666f, -0.002487183f,
2192 0.001480103f, 0.000076294f, -0.000106812f, -0.001785278f, 0.001617432f, -0.025909424f,
2193 -0.008316040f, -0.151306152f, -0.198059082f, -1.014617920f, 0.935195923f, 0.109161377f,
2194 0.143676758f, -0.006134033f, 0.021789551f, -0.002700806f, 0.001388550f, 0.000061035f,
2195 -0.000106812f, -0.001907349f, 0.001266479f, -0.026840210f, -0.012420654f, -0.151962280f,
2196 -0.221984863f, -1.031936646f, 0.913055420f, 0.088775635f, 0.140670776f, -0.009231567f,
2197 0.020690918f, -0.002883911f, 0.001296997f, 0.000061035f, -0.000122070f, -0.002014160f,
2198 0.000869751f, -0.027725220f, -0.016708374f, -0.152069092f, -0.246505737f, -1.048156738f,
2199 0.890090942f, 0.069168091f, 0.137298584f, -0.012115479f, 0.019577026f, -0.003051758f,
2200 0.001205444f, 0.000045776f, -0.000137329f, -0.002120972f, 0.000442505f, -0.028533936f,
2201 -0.021179199f, -0.151596069f, -0.271591187f, -1.063217163f, 0.866363525f, 0.050354004f,
2202 0.133590698f, -0.014801025f, 0.018463135f, -0.003173828f, 0.001113892f, 0.000045776f,
2203 -0.000152588f, -0.002243042f, -0.000030518f, -0.029281616f, -0.025817871f, -0.150497437f,
2204 -0.297210693f, -1.077117920f, 0.841949463f, 0.032379150f, 0.129562378f, -0.017257690f,
2205 0.017349243f, -0.003280640f, 0.001037598f, 0.000030518f, -0.000167847f, -0.002349854f,
2206 -0.000549316f, -0.029937744f, -0.030609131f, -0.148773193f, -0.323318481f, -1.089782715f,
2207 0.816864014f, 0.015228271f, 0.125259399f, -0.019531250f, 0.016235352f, -0.003372192f,
2208 0.000961304f, 0.000030518f, -0.000198364f, -0.002456665f, -0.001098633f, -0.030532837f,
2209 -0.035552979f, -0.146362305f, -0.349868774f, -1.101211548f, 0.791213989f, -0.001068115f,
2210 0.120697021f, -0.021575928f, 0.015121460f, -0.003417969f, 0.000885010f, 0.000030518f,
2211 -0.000213623f, -0.002578735f, -0.001693726f, -0.031005859f, -0.040634155f, -0.143264771f,
2212 -0.376800537f, -1.111373901f, 0.765029907f, -0.016510010f, 0.115921021f, -0.023422241f,
2213 0.014022827f, -0.003463745f, 0.000808716f, 0.000030518f, -0.000244141f, -0.002685547f,
2214 -0.002334595f, -0.031387329f, -0.045837402f, -0.139450073f, -0.404083252f, -1.120223999f,
2215 0.738372803f, -0.031082153f, 0.110946655f, -0.025085449f, 0.012939453f, -0.003479004f,
2216 0.000747681f, 0.000015259f, -0.000259399f, -0.002792358f, -0.003005981f, -0.031661987f,
2217 -0.051132202f, -0.134887695f, -0.431655884f, -1.127746582f, 0.711318970f, -0.044784546f,
2218 0.105819702f, -0.026535034f, 0.011886597f, -0.003479004f, 0.000686646f, 0.000015259f,
2219 -0.000289917f, -0.002899170f, -0.003723145f, -0.031814575f, -0.056533813f, -0.129577637f,
2220 -0.459472656f, -1.133926392f, 0.683914185f, -0.057617188f, 0.100540161f, -0.027801514f,
2221 0.010848999f, -0.003463745f, 0.000625610f, 0.000015259f, -0.000320435f, -0.002990723f,
2222 -0.004486084f, -0.031845093f, -0.061996460f, -0.123474121f, -0.487472534f, -1.138763428f,
2223 0.656219482f, -0.069595337f, 0.095169067f, -0.028884888f, 0.009841919f, -0.003433228f,
2224 0.000579834f, 0.000015259f, -0.000366211f, -0.003082275f, -0.005294800f, -0.031738281f,
2225 -0.067520142f, -0.116577148f, -0.515609741f, -1.142211914f, 0.628295898f, -0.080688477f,
2226 0.089706421f, -0.029785156f, 0.008865356f, -0.003387451f, 0.000534058f, 0.000015259f,
2227 -0.000396729f, -0.003173828f, -0.006118774f, -0.031478882f, -0.073059082f, -0.108856201f,
2228 -0.543823242f, -1.144287109f, 0.600219727f, -0.090927124f, 0.084182739f, -0.030517578f,
2229 0.007919312f, -0.003326416f, 0.000473022f, 0.000015259f };