2 * 11/19/04 1.0 moved to LGPL.
4 * 18/06/01 Michael Scheerer, Fixed bugs which causes
5 * negative indexes in method huffmann_decode and in method
8 * 16/07/01 Michael Scheerer, Catched a bug in method
9 * huffmann_decode, which causes an outOfIndexException.
10 * Cause : Indexnumber of 24 at SfBandIndex,
11 * which has only a length of 22. I have simply and dirty
12 * fixed the index to <= 22, because I'm not really be able
13 * to fix the bug. The Indexnumber is taken from the MP3
14 * file and the origin Ma-Player with the same code works
17 * 02/19/99 Java Conversion by E.B, javalayer@javazoom.net
18 *-----------------------------------------------------------------------
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU Library General Public License as published
21 * by the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU Library General Public License for more details.
29 * You should have received a copy of the GNU Library General Public
30 * License along with this program; if not, write to the Free Software
31 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 *----------------------------------------------------------------------
36 * Class Implementing Layer 3 Decoder.
41 // 4th line added for hybrid.
42 // 5th added for stereo
43 // 6th added for reorder method
44 // 7th added for huffman_decode method
45 // 8th added for get_LSF_scale_data
46 // 9th added for get_LSF_scale_factors
47 // 10th added for get_scale_factors
48 // llth added for decode
51 final class LayerIIIDecoder implements FrameDecoder {
52 static final double d43 = (4.0 / 3.0);
54 public int[] scalefac_buffer;
56 // MDM: removed, as this wasn't being used.
57 // private float CheckSumOut1d = 0.0f;
59 private int CheckSumHuff = 0;
63 private float[][][] ro;
65 private float[][][] lr;
67 private float[] inter; // 576 samples
69 private float[] out_1d; // 576 samples
71 private float[][] prevblck;
75 private int[] nonzero;
77 private SynthesisFilter filter1;
79 private SynthesisFilter filter2;
81 // private Obuffer buffer; // output buffer
83 private int which_channels;
85 private BitReserve br;
87 private III_side_info_t si;
89 // private temporaire2[] III_scalefac_t;
91 private final temporaire2[] scalefac;
92 // private III_scalefac_t scalefac;
96 private int frame_start;
97 // private int part2_start;
99 private final int channels;
101 private int first_channel;
103 private int last_channel;
107 private int part2_start;
109 private boolean initialized = false;
111 float[][] raw_full; // 18 left shfited since it will be copied into prevblck!
113 // constructor for the linear type system
114 public LayerIIIDecoder(Header h, @DELEGATE SynthesisFilter filtera,
115 @DELEGATE SynthesisFilter filterb, int which_ch0) {
118 raw_full = new float[2][SBLIMIT * SSLIMIT];
123 huffcodetab.inithuff();
124 is_1d = new int[SBLIMIT * SSLIMIT + 4];
125 ro = new float[2][SBLIMIT][SSLIMIT];
126 lr = new float[2][SBLIMIT][SSLIMIT];
127 out_1d = new float[SBLIMIT * SSLIMIT];
128 inter = new float[SBLIMIT * SSLIMIT];
129 prevblck = new float[2][SBLIMIT * SSLIMIT];
130 k = new float[2][SBLIMIT * SSLIMIT];
131 nonzero = new int[2];
133 // removes unnecessary aliases
135 // III_scalefac_t = new temporaire2[2];
136 // III_scalefac_t[0] = new temporaire2();
137 // III_scalefac_t[1] = new temporaire2();
138 // scalefac = III_scalefac_t;
140 scalefac = new temporaire2[2];
141 scalefac[0] = new temporaire2();
142 scalefac[1] = new temporaire2();
146 sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
147 int[] l0 = { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 };
148 int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192 };
149 int[] l1 = { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 330, 394, 464, 540, 576 };
150 int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192 };
151 int[] l2 = { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 };
152 int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
154 int[] l3 = { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342, 418, 576 };
155 int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192 };
156 int[] l4 = { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330, 384, 576 };
157 int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192 };
158 int[] l5 = { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448, 550, 576 };
159 int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192 };
161 int[] l6 = { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 };
162 int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
163 int[] l7 = { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 };
164 int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
165 int[] l8 = { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568, 570, 572, 574, 576 };
166 int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 };
168 sfBandIndex[0] = new SBI(l0, s0);
169 sfBandIndex[1] = new SBI(l1, s1);
170 sfBandIndex[2] = new SBI(l2, s2);
172 sfBandIndex[3] = new SBI(l3, s3);
173 sfBandIndex[4] = new SBI(l4, s4);
174 sfBandIndex[5] = new SBI(l5, s5);
176 sfBandIndex[6] = new SBI(l6, s6);
177 sfBandIndex[7] = new SBI(l7, s7);
178 sfBandIndex[8] = new SBI(l8, s8);
179 // END OF L3TABLE INIT
181 if (reorder_table == null) { // SZD: generate LUT
182 reorder_table = new int[9][];
183 for (int i = 0; i < 9; i++)
184 reorder_table[i] = reorder(sfBandIndex[i].s);
188 scalefac_buffer = new int[54];
189 // END OF scalefac_buffer
194 private void init(Header header) {
197 channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
198 max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
200 sfreq = header.sample_frequency() + ((header.version() == Header.MPEG1) ? 3 : (header.version() == Header.MPEG25_LSF) ? 6 : 0); // SZD
203 switch (which_channels) {
204 case OutputChannels.LEFT_CHANNEL:
205 case OutputChannels.DOWNMIX_CHANNELS:
206 first_channel = last_channel = 0;
209 case OutputChannels.RIGHT_CHANNEL:
210 first_channel = last_channel = 1;
213 case OutputChannels.BOTH_CHANNELS:
220 first_channel = last_channel = 0;
223 for (int ch = 0; ch < 2; ch++)
224 for (int j = 0; j < 576; j++)
225 prevblck[ch][j] = 0.0f;
227 nonzero[0] = nonzero[1] = 576;
229 si = new III_side_info_t();
238 // REVIEW: these constructor arguments should be moved to the
239 // decodeFrame() method, where possible, so that one
241 // public LayerIIIDecoder( Header header0,
242 // SynthesisFilter filtera,
243 // SynthesisFilter filterb, int which_ch0) {
245 // huffcodetab.inithuff();
246 // is_1d = new int[SBLIMIT * SSLIMIT + 4];
247 // ro = new float[2][SBLIMIT][SSLIMIT];
248 // lr = new float[2][SBLIMIT][SSLIMIT];
249 // out_1d = new float[SBLIMIT * SSLIMIT];
250 // prevblck = new float[2][SBLIMIT * SSLIMIT];
251 // k = new float[2][SBLIMIT * SSLIMIT];
252 // nonzero = new int[2];
254 // // removes unnecessary aliases
255 // // III_scalefact_t
256 // // III_scalefac_t = new temporaire2[2];
257 // // III_scalefac_t[0] = new temporaire2();
258 // // III_scalefac_t[1] = new temporaire2();
259 // // scalefac = III_scalefac_t;
261 // scalefac = new temporaire2[2];
262 // scalefac[0] = new temporaire2();
263 // scalefac[1] = new temporaire2();
267 // sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
269 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
272 // int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132,
275 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232,
278 // int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136,
281 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
284 // int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
288 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196,
291 // int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136,
294 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190,
297 // int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126,
300 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240,
303 // int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138,
307 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
310 // int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
313 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
316 // int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
319 // { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400,
321 // 570, 572, 574, 576 };
322 // int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164,
325 // sfBandIndex[0] = new SBI(l0, s0);
326 // sfBandIndex[1] = new SBI(l1, s1);
327 // sfBandIndex[2] = new SBI(l2, s2);
329 // sfBandIndex[3] = new SBI(l3, s3);
330 // sfBandIndex[4] = new SBI(l4, s4);
331 // sfBandIndex[5] = new SBI(l5, s5);
333 // sfBandIndex[6] = new SBI(l6, s6);
334 // sfBandIndex[7] = new SBI(l7, s7);
335 // sfBandIndex[8] = new SBI(l8, s8);
336 // // END OF L3TABLE INIT
338 // if (reorder_table == null) { // SZD: generate LUT
339 // reorder_table = new int[9][];
340 // for ( int i = 0; i < 9; i++)
341 // reorder_table[i] = reorder(sfBandIndex[i].s);
345 // int[] ll0 = { 0, 6, 11, 16, 21 };
346 // int[] ss0 = { 0, 6, 12 };
347 // sftable = new Sftable(ll0, ss0);
350 // // scalefac_buffer
351 // scalefac_buffer = new int[54];
352 // // END OF scalefac_buffer
354 // // header = header0;
355 // filter1 = filtera;
356 // filter2 = filterb;
357 // // buffer = buffer0;
358 // which_channels = which_ch0;
361 // channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
362 // max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
365 // header.sample_frequency()
366 // + ((header.version() == Header.MPEG1) ? 3 : (header.version() ==
367 // Header.MPEG25_LSF) ? 6
370 // if (channels == 2) {
371 // switch (which_channels) {
372 // case OutputChannels.LEFT_CHANNEL:
373 // case OutputChannels.DOWNMIX_CHANNELS:
374 // first_channel = last_channel = 0;
377 // case OutputChannels.RIGHT_CHANNEL:
378 // first_channel = last_channel = 1;
381 // case OutputChannels.BOTH_CHANNELS:
383 // first_channel = 0;
388 // first_channel = last_channel = 0;
391 // for ( int ch = 0; ch < 2; ch++)
392 // for ( int j = 0; j < 576; j++)
393 // prevblck[ch][j] = 0.0f;
395 // nonzero[0] = nonzero[1] = 576;
397 // br = new BitReserve();
398 // si = new III_side_info_t();
402 * Notify decoder that a seek is being made.
405 public void seek_notify() {
407 for (int ch = 0; ch < 2; ch++)
408 for (int j = 0; j < 576; j++)
409 prevblck[ch][j] = 0.0f;
410 br = new BitReserve();
413 public void decodeFrame(Header header) {
418 * Decode one frame, filling the buffer with the output samples.
421 // subband samples are buffered and passed to the
422 // SynthesisFilter in one go.
424 private float[] samples1 = new float[32];
426 private float[] samples2 = new float[32];
428 private int filter_pos;
431 * location hierarchy of decode() {header} {stream} {si} {br, flush_main,
432 * main_data_end,frame_start,nSlots,bytes_to_discard}* {gr,max_gr} // granule
433 * {ch,channels,first_channel, last_channel, which_channels} // channel
434 * {part2_start} {sb18, ss} {out_1d}* {sb}* {samples1,sample2}
439 public void decode(Header header) {
441 // if (!initialized) {
445 // overwrites once per a loop
446 SSJAVA.arrayinit(samples1, 0);
447 SSJAVA.arrayinit(samples2, 0);
448 SSJAVA.arrayinit(ro, 2, SBLIMIT, SSLIMIT, 0);
449 SSJAVA.arrayinit(lr, 2, SBLIMIT, SSLIMIT, 0);
450 SSJAVA.arrayinit(is_pos, 7);
451 SSJAVA.arrayinit(is_ratio, 0);
452 SSJAVA.arrayinit(out_1d, 0);
453 SSJAVA.arrayinit(inter, 0);
454 SSJAVA.arrayinit(k, 2, SBLIMIT * SSLIMIT, 0);
455 SSJAVA.arrayinit(is_1d, 0);
456 SSJAVA.arrayinit(tsOutCopy, 0);
457 SSJAVA.arrayinit(scalefac_buffer, 0);
458 SSJAVA.arrayinit(nonzero, 576);
459 SSJAVA.arrayinit(new_slen, 0);
461 SSJAVA.arrayinit(raw_full, 2, SBLIMIT * SSLIMIT, 0);
462 SSJAVA.arrayinit(rawout, 0);
464 // prevblck = new float[2][SBLIMIT * SSLIMIT];
465 si = new III_side_info_t();
468 int nSlots = header.slots();
480 int bytes_to_discard;
483 // modifications for linear type
484 get_side_info(header);
485 br = header.getBitReserve();
487 int version = header.version();
489 // additional codes for the definitely written property
490 filter_pos = (header.getIdx() * 4) & 0xf;
493 filter1.actual_write_pos = filter_pos;
494 filter2.actual_write_pos = filter_pos;
496 // here 'gr' and 'max_gr' should be higher than 'ch','channels', and more
497 for (gr = 0; gr < max_gr; gr++) { // two granules per channel
498 // in the loop body, access set={part2_start}
500 // 'ch', 'channels' should be higher than all locs in the below body
501 for (ch = 0; ch < channels; ch++) {
502 // part2_start = br.hsstell();
503 int part2_start_local = br.hsstell();
505 // grab scale factors from the main data.
506 // following the scale factors is the actual compressed data
507 if (version == Header.MPEG1)
508 get_scale_factors(header, ch, gr); // no need to care from this side
509 // here move scale factor data from 'br' buffer to 'scalefac' field
511 // MPEG-2 LSF, SZD: MPEG-2.5 LSF
512 get_LSF_scale_factors(header, ch, gr); // no need to care from this
515 // here, decoding the compressed audio data
516 huffman_decode(part2_start_local, ch, gr); // no need to care from this
518 // System.out.println("CheckSum HuffMan = " + CheckSumHuff);
519 dequantize_sample(/* ro[ch], */ch, gr); // no need to care from this
523 stereo(header, gr); // no need to care from this side
525 if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) {
529 for (ch = first_channel; ch <= last_channel; ch++) { // 'ch' and
533 reorder(/* lr[ch], */ch, gr);
536 // float CheckSumOut1d=0;
537 // for (int hb = 0;hb<576;hb++) {
538 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
540 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
542 for (int index = 0; index < 576; index++) {
543 out_1d[index] = inter[index];
548 // float CheckSumOut1d=0;
549 // for (int hb = 0;hb<576;hb++) {
550 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
552 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
554 for (sb18 = 18; sb18 < 576; sb18 += 36) {
555 // sb18 > ss, SSLIMIT, out1d
556 // Frequency inversion
557 for (ss = 1; ss < SSLIMIT; ss += 2) {
558 // 'ss','SSLIMIT' > out_1d
559 out_1d[sb18 + ss] = -out_1d[sb18 + ss]; // out1d*
563 // 'ch', 'which_channels' should be higher than if/else body!
564 // location set written by if/else body
565 // = {samples1, samples2, filter1, filter2}
566 if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) {
567 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
569 for (sb18 = 0; sb18 < 576; sb18 += 18) {
570 samples1[sb] = out_1d[sb18 + ss]; // out_1d > samples1
571 // filter1.input_sample(out_1d[sb18+ss], sb);
572 sb++; // sb should be loc*
574 filter1.input_samples(samples1);
575 // System.out.println("filter1 writepos=" + filter1.actual_write_pos
576 // + " vidx=" + filter1.vidx);
577 filter1.calculate_pcm_samples();
580 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
582 for (sb18 = 0; sb18 < 576; sb18 += 18) {
583 samples2[sb] = out_1d[sb18 + ss]; // out_1d > samples2
584 // filter2.input_sample(out_1d[sb18+ss], sb);
587 filter2.input_samples(samples2);
588 filter2.calculate_pcm_samples();
591 // System.out.println("#END CH=" + ch + " actual_write_pos=" +
592 // filter1.actual_write_pos);
596 if (gr < max_gr - 1) {
598 SSJAVA.arrayinit(prevblck, 2, SBLIMIT * SSLIMIT, 0);
599 // copy from raw_full to prev
600 SSJAVA.arraycopy(prevblck, raw_full, 2, SBLIMIT * SSLIMIT);
602 // for (int chidx = 0; chidx < 2; chidx++) {
603 // for (int sidx = 0; sidx < SBLIMIT * SSLIMIT; sidx++) {
604 // prevblck[chidx][sidx] = raw_full[chidx][sidx];
607 // System.out.println("#END GR=" + gr + " actual_write_pos=" +
608 // filter1.actual_write_pos);
613 SSJAVA.arrayinit(prevblck, 2, SBLIMIT * SSLIMIT, 0);
614 // copy from raw_full to prev
615 SSJAVA.arraycopy(prevblck, raw_full, 2, SBLIMIT * SSLIMIT);
617 // System.out.println("#END FRAME actual_write_pos=" +
618 // filter1.actual_write_pos);
623 // System.out.println("Counter = ................................."+counter);
624 // if (counter < 609)
626 // counter++; // count should be loc*
627 // buffer.write_buffer(1); // buffer!!!
629 // else if (counter == 609)
641 * Reads the side info from the stream, assuming the entire. frame has been
642 * read already. Mono : 136 bits (= 17 bytes) Stereo : 256 bits (= 32 bytes)
645 private boolean get_side_info(Header header) {
647 SideInfoBuffer sib = header.getSideInfoBuffer();
648 int version = header.version();
652 // System.out.println("#get_side_info");
653 if (version == Header.MPEG1) {
655 si.main_data_begin = sib.get_bits(9);
657 si.private_bits = sib.get_bits(5);
659 si.private_bits = sib.get_bits(3);
661 for (ch = 0; ch < channels; ch++) {
662 si.ch[ch].scfsi[0] = sib.get_bits(1);
663 si.ch[ch].scfsi[1] = sib.get_bits(1);
664 si.ch[ch].scfsi[2] = sib.get_bits(1);
665 si.ch[ch].scfsi[3] = sib.get_bits(1);
668 // System.out.println("BEFORE GR,CH");
670 for (gr = 0; gr < 2; gr++) {
671 // System.out.println("GR=" + gr);
672 for (ch = 0; ch < channels; ch++) {
673 // System.out.println("CH");
674 si.ch[ch].gr[gr].part2_3_length = sib.get_bits(12);
675 si.ch[ch].gr[gr].big_values = sib.get_bits(9);
676 si.ch[ch].gr[gr].global_gain = sib.get_bits(8);
677 si.ch[ch].gr[gr].scalefac_compress = sib.get_bits(4);
678 int cond = sib.get_bits(1);
679 // si.ch[ch].gr[gr].window_switching_flag = sib.get_bits(1);
680 // if ((si.ch[ch].gr[gr].window_switching_flag) != 0) {
682 si.ch[ch].gr[gr].block_type = sib.get_bits(2);
683 si.ch[ch].gr[gr].mixed_block_flag = sib.get_bits(1);
685 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
686 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
688 si.ch[ch].gr[gr].subblock_gain[0] = sib.get_bits(3);
689 si.ch[ch].gr[gr].subblock_gain[1] = sib.get_bits(3);
690 si.ch[ch].gr[gr].subblock_gain[2] = sib.get_bits(3);
692 // Set region_count parameters since they are implicit
695 if (si.ch[ch].gr[gr].block_type == 0) {
696 // Side info bad: block_type == 0 in split block
698 } else if (si.ch[ch].gr[gr].block_type == 2 && si.ch[ch].gr[gr].mixed_block_flag == 0) {
699 si.ch[ch].gr[gr].region0_count = 8;
701 si.ch[ch].gr[gr].region0_count = 7;
703 si.ch[ch].gr[gr].region1_count = 20 - si.ch[ch].gr[gr].region0_count;
705 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
706 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
707 si.ch[ch].gr[gr].table_select[2] = sib.get_bits(5);
708 si.ch[ch].gr[gr].region0_count = sib.get_bits(4);
709 si.ch[ch].gr[gr].region1_count = sib.get_bits(3);
710 si.ch[ch].gr[gr].block_type = 0;
713 si.ch[ch].gr[gr].window_switching_flag = cond;
715 si.ch[ch].gr[gr].preflag = sib.get_bits(1);
716 si.ch[ch].gr[gr].scalefac_scale = sib.get_bits(1);
717 si.ch[ch].gr[gr].count1table_select = sib.get_bits(1);
721 } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF
723 si.main_data_begin = sib.get_bits(8);
725 si.private_bits = sib.get_bits(1);
727 si.private_bits = sib.get_bits(2);
729 for (ch = 0; ch < channels; ch++) {
731 si.ch[ch].gr[0].part2_3_length = sib.get_bits(12);
732 si.ch[ch].gr[0].big_values = sib.get_bits(9);
733 si.ch[ch].gr[0].global_gain = sib.get_bits(8);
734 si.ch[ch].gr[0].scalefac_compress = sib.get_bits(9);
736 int cond = sib.get_bits(1);
737 // si.ch[ch].gr[0].window_switching_flag = sib.get_bits(1);
738 // if ((si.ch[ch].gr[0].window_switching_flag) != 0) {
741 si.ch[ch].gr[0].block_type = sib.get_bits(2);
742 si.ch[ch].gr[0].mixed_block_flag = sib.get_bits(1);
743 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
744 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
746 si.ch[ch].gr[0].subblock_gain[0] = sib.get_bits(3);
747 si.ch[ch].gr[0].subblock_gain[1] = sib.get_bits(3);
748 si.ch[ch].gr[0].subblock_gain[2] = sib.get_bits(3);
750 // Set region_count parameters since they are implicit in
753 if (si.ch[ch].gr[0].block_type == 0) {
754 // Side info bad: block_type == 0 in split block
756 } else if (si.ch[ch].gr[0].block_type == 2 && si.ch[ch].gr[0].mixed_block_flag == 0) {
757 si.ch[ch].gr[0].region0_count = 8;
759 si.ch[ch].gr[0].region0_count = 7;
760 si.ch[ch].gr[0].region1_count = 20 - si.ch[ch].gr[0].region0_count;
764 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
765 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
766 si.ch[ch].gr[0].table_select[2] = sib.get_bits(5);
767 si.ch[ch].gr[0].region0_count = sib.get_bits(4);
768 si.ch[ch].gr[0].region1_count = sib.get_bits(3);
769 si.ch[ch].gr[0].block_type = 0;
772 si.ch[ch].gr[gr].window_switching_flag = cond;
775 si.ch[ch].gr[0].scalefac_scale = sib.get_bits(1);
776 si.ch[ch].gr[0].count1table_select = sib.get_bits(1);
777 } // for(ch=0; ch<channels; ch++)
778 } // if (header.version() == MPEG1)
786 private void get_scale_factors(Header header, int ch, int gr) {
788 // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias
792 int scale_comp = si.ch[ch].gr[gr].scalefac_compress;
793 int length0 = slen[0][scale_comp];
794 int length1 = slen[1][scale_comp];
796 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
797 if ((si.ch[ch].gr[gr].mixed_block_flag) != 0) { // MIXED
798 for (sfb = 0; sfb < 8; sfb++)
799 scalefac[ch].l[sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
800 for (sfb = 3; sfb < 6; sfb++)
801 for (window = 0; window < 3; window++)
802 scalefac[ch].s[window][sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
803 for (sfb = 6; sfb < 12; sfb++)
804 for (window = 0; window < 3; window++)
805 scalefac[ch].s[window][sfb] = br.hgetbits(slen[1][si.ch[ch].gr[gr].scalefac_compress]);
806 for (sfb = 12, window = 0; window < 3; window++)
807 scalefac[ch].s[window][sfb] = 0;
811 scalefac[ch].s[0][0] = br.hgetbits(length0);
812 scalefac[ch].s[1][0] = br.hgetbits(length0);
813 scalefac[ch].s[2][0] = br.hgetbits(length0);
814 scalefac[ch].s[0][1] = br.hgetbits(length0);
815 scalefac[ch].s[1][1] = br.hgetbits(length0);
816 scalefac[ch].s[2][1] = br.hgetbits(length0);
817 scalefac[ch].s[0][2] = br.hgetbits(length0);
818 scalefac[ch].s[1][2] = br.hgetbits(length0);
819 scalefac[ch].s[2][2] = br.hgetbits(length0);
820 scalefac[ch].s[0][3] = br.hgetbits(length0);
821 scalefac[ch].s[1][3] = br.hgetbits(length0);
822 scalefac[ch].s[2][3] = br.hgetbits(length0);
823 scalefac[ch].s[0][4] = br.hgetbits(length0);
824 scalefac[ch].s[1][4] = br.hgetbits(length0);
825 scalefac[ch].s[2][4] = br.hgetbits(length0);
826 scalefac[ch].s[0][5] = br.hgetbits(length0);
827 scalefac[ch].s[1][5] = br.hgetbits(length0);
828 scalefac[ch].s[2][5] = br.hgetbits(length0);
829 scalefac[ch].s[0][6] = br.hgetbits(length1);
830 scalefac[ch].s[1][6] = br.hgetbits(length1);
831 scalefac[ch].s[2][6] = br.hgetbits(length1);
832 scalefac[ch].s[0][7] = br.hgetbits(length1);
833 scalefac[ch].s[1][7] = br.hgetbits(length1);
834 scalefac[ch].s[2][7] = br.hgetbits(length1);
835 scalefac[ch].s[0][8] = br.hgetbits(length1);
836 scalefac[ch].s[1][8] = br.hgetbits(length1);
837 scalefac[ch].s[2][8] = br.hgetbits(length1);
838 scalefac[ch].s[0][9] = br.hgetbits(length1);
839 scalefac[ch].s[1][9] = br.hgetbits(length1);
840 scalefac[ch].s[2][9] = br.hgetbits(length1);
841 scalefac[ch].s[0][10] = br.hgetbits(length1);
842 scalefac[ch].s[1][10] = br.hgetbits(length1);
843 scalefac[ch].s[2][10] = br.hgetbits(length1);
844 scalefac[ch].s[0][11] = br.hgetbits(length1);
845 scalefac[ch].s[1][11] = br.hgetbits(length1);
846 scalefac[ch].s[2][11] = br.hgetbits(length1);
847 scalefac[ch].s[0][12] = 0;
848 scalefac[ch].s[1][12] = 0;
849 scalefac[ch].s[2][12] = 0;
852 } else { // LONG types 0,1,3
854 if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) {
855 scalefac[ch].l[0] = br.hgetbits(length0);
856 scalefac[ch].l[1] = br.hgetbits(length0);
857 scalefac[ch].l[2] = br.hgetbits(length0);
858 scalefac[ch].l[3] = br.hgetbits(length0);
859 scalefac[ch].l[4] = br.hgetbits(length0);
860 scalefac[ch].l[5] = br.hgetbits(length0);
862 if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) {
863 scalefac[ch].l[6] = br.hgetbits(length0);
864 scalefac[ch].l[7] = br.hgetbits(length0);
865 scalefac[ch].l[8] = br.hgetbits(length0);
866 scalefac[ch].l[9] = br.hgetbits(length0);
867 scalefac[ch].l[10] = br.hgetbits(length0);
869 if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) {
870 scalefac[ch].l[11] = br.hgetbits(length1);
871 scalefac[ch].l[12] = br.hgetbits(length1);
872 scalefac[ch].l[13] = br.hgetbits(length1);
873 scalefac[ch].l[14] = br.hgetbits(length1);
874 scalefac[ch].l[15] = br.hgetbits(length1);
876 if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) {
877 scalefac[ch].l[16] = br.hgetbits(length1);
878 scalefac[ch].l[17] = br.hgetbits(length1);
879 scalefac[ch].l[18] = br.hgetbits(length1);
880 scalefac[ch].l[19] = br.hgetbits(length1);
881 scalefac[ch].l[20] = br.hgetbits(length1);
884 scalefac[ch].l[21] = 0;
885 scalefac[ch].l[22] = 0;
892 // MDM: new_slen is fully initialized before use, no need
893 // to reallocate array.
895 private int[] new_slen = new int[4];
899 private void get_LSF_scale_data(Header header, int ch, int gr) {
901 int mode_ext = header.mode_extension();
902 // gr_info_s gr_info =
903 // (si.ch[ch].gr[gr]); // remove alias
905 int scalefac_comp = si.ch[ch].gr[gr].scalefac_compress;
908 int int_scalefac_comp;
912 if (si.ch[ch].gr[gr].block_type == 2) {
913 if (si.ch[ch].gr[gr].mixed_block_flag == 0) {
915 } else if (si.ch[ch].gr[gr].mixed_block_flag == 1) {
924 if (!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
926 if (scalefac_comp < 400) {
928 new_slen[0] = (scalefac_comp >>> 4) / 5;
929 new_slen[1] = (scalefac_comp >>> 4) % 5;
930 new_slen[2] = (scalefac_comp & 0xF) >>> 2;
931 new_slen[3] = (scalefac_comp & 3);
932 si.ch[ch].gr[gr].preflag = 0;
935 } else if (scalefac_comp < 500) {
937 new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5;
938 new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5;
939 new_slen[2] = (scalefac_comp - 400) & 3;
941 si.ch[ch].gr[gr].preflag = 0;
944 } else if (scalefac_comp < 512) {
946 new_slen[0] = (scalefac_comp - 500) / 3;
947 new_slen[1] = (scalefac_comp - 500) % 3;
950 si.ch[ch].gr[gr].preflag = 1;
955 if ((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
956 int_scalefac_comp = scalefac_comp >>> 1;
958 if (int_scalefac_comp < 180) {
959 new_slen[0] = int_scalefac_comp / 36;
960 new_slen[1] = (int_scalefac_comp % 36) / 6;
961 new_slen[2] = (int_scalefac_comp % 36) % 6;
963 si.ch[ch].gr[gr].preflag = 0;
965 } else if (int_scalefac_comp < 244) {
966 new_slen[0] = ((int_scalefac_comp - 180) & 0x3F) >>> 4;
967 new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2;
968 new_slen[2] = (int_scalefac_comp - 180) & 3;
970 si.ch[ch].gr[gr].preflag = 0;
972 } else if (int_scalefac_comp < 255) {
973 new_slen[0] = (int_scalefac_comp - 244) / 3;
974 new_slen[1] = (int_scalefac_comp - 244) % 3;
977 si.ch[ch].gr[gr].preflag = 0;
982 // for ( int x = 0; x < 45; x++)
983 // // why 45, not 54?
984 // scalefac_buffer[x] = 0;
987 for (int i = 0; i < 4; i++) {
988 int jmax = nr_of_sfb_block[blocknumber][blocktypenumber][i];
989 for (int j = 0; j < jmax; j++) {
990 scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : br.hgetbits(new_slen[i]);
993 } // for (unint32 j ...
994 } // for (uint32 i ...
1001 private void get_LSF_scale_factors(Header header, int ch, int gr) {
1006 // gr_info_s gr_info = (si.ch[ch].gr[gr]); // remove alias
1008 get_LSF_scale_data(header, ch, gr);
1010 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1011 if (si.ch[ch].gr[gr].mixed_block_flag != 0) { // MIXED
1012 for (sfb = 0; sfb < 8; sfb++) {
1013 scalefac[ch].l[sfb] = scalefac_buffer[m];
1016 for (sfb = 3; sfb < 12; sfb++) {
1017 for (window = 0; window < 3; window++) {
1018 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
1022 for (window = 0; window < 3; window++)
1023 scalefac[ch].s[window][12] = 0;
1027 for (sfb = 0; sfb < 12; sfb++) {
1028 for (window = 0; window < 3; window++) {
1029 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
1034 for (window = 0; window < 3; window++)
1035 scalefac[ch].s[window][12] = 0;
1037 } else { // LONG types 0,1,3
1039 for (sfb = 0; sfb < 21; sfb++) {
1040 scalefac[ch].l[sfb] = scalefac_buffer[m];
1043 scalefac[ch].l[21] = 0; // Jeff
1044 scalefac[ch].l[22] = 0;
1068 private void huffman_decode(int part2_start_local, int ch, int gr) {
1070 int[] x = new int[1];
1071 int[] y = new int[1];
1072 int[] v = new int[1];
1073 int[] w = new int[1];
1075 int part2_3_end = part2_start_local + si.ch[ch].gr[gr].part2_3_length;
1084 // Find region boundary for short block case
1086 if (((si.ch[ch].gr[gr].window_switching_flag) != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1089 // MS: Extrahandling for 8KHZ
1090 region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case
1092 region2Start = 576; // No Region2 for short block case
1094 } else { // Find region boundary for long block case
1096 buf = si.ch[ch].gr[gr].region0_count + 1;
1097 buf1 = buf + si.ch[ch].gr[gr].region1_count + 1;
1099 if (buf1 > sfBandIndex[sfreq].l.length - 1)
1100 buf1 = sfBandIndex[sfreq].l.length - 1;
1102 region1Start = sfBandIndex[sfreq].l[buf];
1103 region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */
1107 // Read bigvalues area
1108 TERMINATE: for (int i = 0; i < (si.ch[ch].gr[gr].big_values << 1); i += 2) {
1111 if (i < region1Start) {
1112 htIdx = si.ch[ch].gr[gr].table_select[0];
1113 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]];
1114 } else if (i < region2Start) {
1115 htIdx = si.ch[ch].gr[gr].table_select[1];
1116 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]];
1118 htIdx = si.ch[ch].gr[gr].table_select[2];
1119 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]];
1122 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1123 // if (index >= is_1d.length)
1124 // System.out.println("i0="+i+"/"+(si.ch[ch].gr[gr].big_values<<1)+" Index="+index+" is_1d="+is_1d.length);
1126 is_1d[index++] = x[0];
1127 is_1d[index++] = y[0];
1129 CheckSumHuff = CheckSumHuff + x[0] + y[0];
1130 // System.out.println("x = " + x[0] + " y = " + y[0]);
1135 int htIdx = si.ch[ch].gr[gr].count1table_select + 32;
1136 // h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select + 32];
1137 num_bits = br.hsstell();
1139 TERMINATE: while ((num_bits < part2_3_end) && (index < 576)) {
1141 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1143 is_1d[index++] = v[0];
1144 is_1d[index++] = w[0];
1145 is_1d[index++] = x[0];
1146 is_1d[index++] = y[0];
1147 CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0];
1148 // System.out.println("v = "+v[0]+" w = "+w[0]);
1149 // System.out.println("x = "+x[0]+" y = "+y[0]);
1150 num_bits = br.hsstell();
1153 if (num_bits > part2_3_end) {
1154 br.rewindNbits(num_bits - part2_3_end);
1158 num_bits = br.hsstell();
1160 // Dismiss stuffing bits
1161 if (num_bits < part2_3_end)
1162 br.hgetbits(part2_3_end - num_bits);
1167 nonzero[ch] = index;
1174 // may not be necessary
1175 for (; index < 576; index++)
1179 private int huffcodetab_huffman_decoder(int h) {
1180 // TODO need to move huffmancodetab implementation here
1187 private void i_stereo_k_values(int is_pos, int io_type, int i) {
1191 } else if ((is_pos & 1) != 0) {
1192 k[0][i] = io[io_type][(is_pos + 1) >>> 1];
1196 k[1][i] = io[io_type][is_pos >>> 1];
1206 private void dequantize_sample(int ch, int gr) {
1208 // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias!
1211 int next_cb_boundary;
1220 // float[][] xr_1d = xr;//substituted xr for instances of xr_1d to decrease
1223 // choose correct scalefactor band per block type, initalize boundary
1225 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1226 if (si.ch[ch].gr[gr].mixed_block_flag != 0)
1227 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1229 cb_width = sfBandIndex[sfreq].s[1];
1230 next_cb_boundary = (cb_width << 2) - cb_width;
1234 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1237 // Compute overall (global) scaling.
1239 g_gain = (float) Math.pow(2.0, (0.25 * (si.ch[ch].gr[gr].global_gain - 210.0)));
1241 for (j = 0; j < nonzero[ch]; j++) {
1242 // Modif E.B 02/22/99
1243 int reste = j % SSLIMIT;
1244 int quotien = (int) ((j - reste) / SSLIMIT);
1245 if (is_1d[j] == 0) {
1246 ro[ch][quotien][reste] = 0.0f;
1249 // Pow Array fix (11/17/04)
1250 if (abv < t_43.length) {
1252 ro[ch][quotien][reste] = g_gain * t_43[abv];
1254 if (-abv < t_43.length)
1255 ro[ch][quotien][reste] = -g_gain * t_43[-abv];
1257 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1261 ro[ch][quotien][reste] = g_gain * (float) Math.pow(abv, d43);
1263 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1268 // apply formula per block type
1269 for (j = 0; j < nonzero[ch]; j++) {
1270 // Modif E.B 02/22/99
1271 int reste = j % SSLIMIT;
1272 int quotien = (int) ((j - reste) / SSLIMIT);
1274 if (index == next_cb_boundary) { /* Adjust critical band boundary */
1275 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1276 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1278 if (index == sfBandIndex[sfreq].l[8]) {
1279 next_cb_boundary = sfBandIndex[sfreq].s[4];
1280 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1282 cb_width = sfBandIndex[sfreq].s[4] - sfBandIndex[sfreq].s[3];
1284 cb_begin = sfBandIndex[sfreq].s[3];
1285 cb_begin = (cb_begin << 2) - cb_begin;
1287 } else if (index < sfBandIndex[sfreq].l[8]) {
1289 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1293 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1294 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1296 cb_begin = sfBandIndex[sfreq].s[cb];
1297 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1298 cb_begin = (cb_begin << 2) - cb_begin;
1303 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1304 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1306 cb_begin = sfBandIndex[sfreq].s[cb];
1307 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1308 cb_begin = (cb_begin << 2) - cb_begin;
1311 } else { // long blocks
1313 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1318 // Do long/short dependent scaling operations
1320 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (((si.ch[ch].gr[gr].block_type == 2) && (si.ch[ch].gr[gr].mixed_block_flag == 0)) || ((si.ch[ch].gr[gr].block_type == 2) && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (j >= 36)))) {
1322 t_index = (index - cb_begin) / cb_width;
1324 * xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) -(0.5
1325 * * (1.0 + gr_info.scalefac_scale) scalefac[ch].s[t_index][cb])));
1327 int idx = scalefac[ch].s[t_index][cb] << si.ch[ch].gr[gr].scalefac_scale;
1328 idx += (si.ch[ch].gr[gr].subblock_gain[t_index] << 2);
1330 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1332 } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks
1334 * xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale)
1335 * (scalefac[ch].l[cb] + gr_info.preflag * pretab[cb]));
1337 int idx = scalefac[ch].l[cb];
1339 if (si.ch[ch].gr[gr].preflag != 0)
1342 idx = idx << si.ch[ch].gr[gr].scalefac_scale;
1343 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1348 for (j = nonzero[ch]; j < 576; j++) {
1349 // Modif E.B 02/22/99
1350 int reste = j % SSLIMIT;
1351 int quotien = (int) ((j - reste) / SSLIMIT);
1356 ro[ch][quotien][reste] = 0.0f;
1368 private void reorder(int ch, int gr) {
1369 // the purpose of reordering: move 'short samples' back to their original
1371 // after reorder, the samples are no long ordered by frequency
1373 // the format of input data to reorder:
1374 // three small chunks of 192 samples each are combined to 576 samples
1375 // ordered by frequency
1377 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1388 // float[][] xr_1d = xr; subbed in xr for xr_1d so as not to create extra
1391 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1393 // for (index = 0; index < 576; index++) {
1394 // inter[index] = 0.0f;
1397 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1398 // NO REORDER FOR LOW 2 SUBBANDS
1399 for (index = 0; index < 36; index++) {
1400 // Modif E.B 02/22/99
1401 int reste = index % SSLIMIT;
1402 int quotien = (int) ((index - reste) / SSLIMIT);
1403 inter[index] = lr[ch][quotien][reste];
1405 // REORDERING FOR REST SWITCHED SHORT
1407 * for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3],
1408 * sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; sfb < 13;
1409 * sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], sfb_lines =
1410 * sfBandIndex[sfreq].s[sfb+1] - sfb_start ) {
1412 for (sfb = 3; sfb < 13; sfb++) {
1413 // System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length);
1414 sfb_start = sfBandIndex[sfreq].s[sfb];
1415 sfb_lines = sfBandIndex[sfreq].s[sfb + 1] - sfb_start;
1417 int sfb_start3 = (sfb_start << 2) - sfb_start;
1419 for (freq = 0, freq3 = 0; freq < sfb_lines; freq++, freq3 += 3) {
1421 src_line = sfb_start3 + freq;
1422 des_line = sfb_start3 + freq3;
1423 // Modif E.B 02/22/99
1424 int reste = src_line % SSLIMIT;
1425 int quotien = (int) ((src_line - reste) / SSLIMIT);
1427 inter[des_line] = lr[ch][quotien][reste];
1428 src_line += sfb_lines;
1431 reste = src_line % SSLIMIT;
1432 quotien = (int) ((src_line - reste) / SSLIMIT);
1434 inter[des_line] = lr[ch][quotien][reste];
1435 src_line += sfb_lines;
1438 reste = src_line % SSLIMIT;
1439 quotien = (int) ((src_line - reste) / SSLIMIT);
1441 inter[des_line] = lr[ch][quotien][reste];
1445 } else { // pure short
1446 for (index = 0; index < 576; index++) {
1447 int j = reorder_table[sfreq][index];
1448 int reste = j % SSLIMIT;
1449 int quotien = (int) ((j - reste) / SSLIMIT);
1450 inter[index] = lr[ch][quotien][reste];
1453 } else { // long blocks
1454 for (index = 0; index < 576; index++) {
1455 // Modif E.B 02/22/99
1456 int reste = index % SSLIMIT;
1457 int quotien = (int) ((index - reste) / SSLIMIT);
1458 inter[index] = lr[ch][quotien][reste];
1467 int[] is_pos = new int[576];
1469 float[] is_ratio = new float[576];
1473 private void stereo(Header header, int gr) {
1477 if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][]
1479 for (sb = 0; sb < SBLIMIT; sb++)
1480 for (ss = 0; ss < SSLIMIT; ss += 3) {
1481 lr[0][sb][ss] = ro[0][sb][ss];
1482 lr[0][sb][ss + 1] = ro[0][sb][ss + 1];
1483 lr[0][sb][ss + 2] = ro[0][sb][ss + 2];
1488 // gr_info_s gr_info = (si.ch[0].gr[gr]); remove alias
1489 int mode_ext = header.mode_extension();
1497 boolean ms_stereo = ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2) != 0));
1498 boolean i_stereo = ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1) != 0));
1499 boolean lsf = ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF)); // SZD
1501 int io_type = (si.ch[0].gr[gr].scalefac_compress & 1);
1504 // for (i = 0; i < 576; i++) {
1506 // is_ratio[i] = 0.0f;
1510 if ((si.ch[0].gr[gr].window_switching_flag != 0) && (si.ch[0].gr[gr].block_type == 2)) {
1511 if (si.ch[0].gr[gr].mixed_block_flag != 0) {
1515 for (int j = 0; j < 3; j++) {
1518 TERMINATE: for (sfb = 12; sfb >= 3; sfb--) {
1519 i = sfBandIndex[sfreq].s[sfb];
1520 lines = sfBandIndex[sfreq].s[sfb + 1] - i;
1521 i = (i << 2) - i + (j + 1) * lines - 1;
1522 TERMINATE: while (lines > 0) {
1523 if (ro[1][i / 18][i % 18] != 0.0f) {
1524 // MDM: in java, array access is very slow.
1525 // Is quicker to compute div and mod values.
1526 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1535 } // while (lines > 0)
1537 } // for (sfb=12 ...
1544 temp = sfBandIndex[sfreq].s[sfb];
1545 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1546 i = (temp << 2) - temp + j * sb;
1548 TERMINATE: for (; sb > 0; sb--) {
1549 is_pos[i] = scalefac[1].s[j][sfb];
1552 i_stereo_k_values(is_pos[i], io_type, i);
1554 is_ratio[i] = TAN12[is_pos[i]];
1559 } // while (sfb < 12)
1560 sfb = sfBandIndex[sfreq].s[10];
1561 sb = sfBandIndex[sfreq].s[11] - sfb;
1562 sfb = (sfb << 2) - sfb + j * sb;
1563 temp = sfBandIndex[sfreq].s[11];
1564 sb = sfBandIndex[sfreq].s[12] - temp;
1565 i = (temp << 2) - temp + j * sb;
1566 TERMINATE: for (; sb > 0; sb--) {
1567 is_pos[i] = is_pos[sfb];
1570 k[0][i] = k[0][sfb];
1571 k[1][i] = k[1][sfb];
1573 is_ratio[i] = is_ratio[sfb];
1576 } // for (; sb > 0 ...
1582 TERMINATE: while (i >= 0) {
1583 if (ro[1][i][ss] != 0.0f) {
1584 sb = (i << 4) + (i << 1) + ss;
1595 while (sfBandIndex[sfreq].l[i] <= sb)
1598 i = sfBandIndex[sfreq].l[i];
1599 for (; sfb < 8; sfb++) {
1600 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1601 TERMINATE: for (; sb > 0; sb--) {
1602 is_pos[i] = scalefac[1].l[sfb];
1605 i_stereo_k_values(is_pos[i], io_type, i);
1607 is_ratio[i] = TAN12[is_pos[i]];
1609 } // for (; sb>0 ...
1610 } // for (; sfb<8 ...
1612 } else { // if (gr_info.mixed_block_flag)
1613 for (int j = 0; j < 3; j++) {
1616 TERMINATE: for (sfb = 12; sfb >= 0; sfb--) {
1617 temp = sfBandIndex[sfreq].s[sfb];
1618 lines = sfBandIndex[sfreq].s[sfb + 1] - temp;
1619 i = (temp << 2) - temp + (j + 1) * lines - 1;
1620 TERMINATE: while (lines > 0) {
1621 if (ro[1][i / 18][i % 18] != 0.0f) {
1622 // MDM: in java, array access is very slow.
1623 // Is quicker to compute div and mod values.
1624 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1631 } // while (lines > 0) */
1633 } // for (sfb=12 ...
1636 temp = sfBandIndex[sfreq].s[sfb];
1637 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1638 i = (temp << 2) - temp + j * sb;
1639 TERMINATE: for (; sb > 0; sb--) {
1640 is_pos[i] = scalefac[1].s[j][sfb];
1643 i_stereo_k_values(is_pos[i], io_type, i);
1645 is_ratio[i] = TAN12[is_pos[i]];
1647 } // for (; sb>0 ...
1651 temp = sfBandIndex[sfreq].s[10];
1652 temp2 = sfBandIndex[sfreq].s[11];
1654 sfb = (temp << 2) - temp + j * sb;
1655 sb = sfBandIndex[sfreq].s[12] - temp2;
1656 i = (temp2 << 2) - temp2 + j * sb;
1657 TERMINATE: for (; sb > 0; sb--) {
1658 is_pos[i] = is_pos[sfb];
1661 k[0][i] = k[0][sfb];
1662 k[1][i] = k[1][sfb];
1664 is_ratio[i] = is_ratio[sfb];
1667 } // for (; sb>0 ...
1670 } else { // if (gr_info.window_switching_flag ...
1674 TERMINATE: while (i >= 0) {
1675 if (ro[1][i][ss] != 0.0f) {
1676 sb = (i << 4) + (i << 1) + ss;
1687 while (sfBandIndex[sfreq].l[i] <= sb)
1691 i = sfBandIndex[sfreq].l[i];
1692 for (; sfb < 21; sfb++) {
1693 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1694 TERMINATE: for (; sb > 0; sb--) {
1695 is_pos[i] = scalefac[1].l[sfb];
1698 i_stereo_k_values(is_pos[i], io_type, i);
1700 is_ratio[i] = TAN12[is_pos[i]];
1704 sfb = sfBandIndex[sfreq].l[20];
1705 TERMINATE: for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i < 576); sb--) {
1706 is_pos[i] = is_pos[sfb]; // error here : i >=576
1709 k[0][i] = k[0][sfb];
1710 k[1][i] = k[1][sfb];
1712 is_ratio[i] = is_ratio[sfb];
1715 } // if (gr_info.mixed_block_flag)
1716 } // if (gr_info.window_switching_flag ...
1720 for (sb = 0; sb < SBLIMIT; sb++)
1721 for (ss = 0; ss < SSLIMIT; ss++) {
1722 if (is_pos[i] == 7) {
1724 lr[0][sb][ss] = (ro[0][sb][ss] + ro[1][sb][ss]) * 0.707106781f;
1725 lr[1][sb][ss] = (ro[0][sb][ss] - ro[1][sb][ss]) * 0.707106781f;
1727 lr[0][sb][ss] = ro[0][sb][ss];
1728 lr[1][sb][ss] = ro[1][sb][ss];
1730 } else if (i_stereo) {
1733 lr[0][sb][ss] = ro[0][sb][ss] * k[0][i];
1734 lr[1][sb][ss] = ro[0][sb][ss] * k[1][i];
1736 lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]);
1737 lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i];
1741 * else { System.out.println("Error in stereo processing\n"); }
1755 private void antialias(int ch, int gr) {
1762 // gr_info_s gr_info =
1763 // (si.ch[ch].gr[gr]);
1764 // 31 alias-reduction operations between each pair of sub-bands
1765 // with 8 butterflies between each pair
1767 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2) && !(si.ch[ch].gr[gr].mixed_block_flag != 0))
1770 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1776 for (sb18 = 0; sb18 < sb18lim; sb18 += 18) {
1777 for (ss = 0; ss < 8; ss++) {
1778 int src_idx1 = sb18 + 17 - ss;
1779 int src_idx2 = sb18 + 18 + ss;
1780 float bu = inter[src_idx1];
1781 float bd = inter[src_idx2];
1782 inter[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]);
1783 inter[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]);
1792 // MDM: tsOutCopy and rawout do not need initializing, so the arrays
1795 float[] tsOutCopy = new float[18];
1797 float[] rawout = new float[36];
1799 private void hybrid(int ch, int gr) {
1803 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1804 // float[] tsOut; //remove alias
1806 // float[][] prvblk;
1808 for (sb18 = 0; sb18 < 576; sb18 += 18) {
1809 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (sb18 < 36)) {
1812 bt = si.ch[ch].gr[gr].block_type;
1816 // Modif E.B 02/22/99
1817 for (int cc = 0; cc < 18; cc++) {
1818 // tsOutCopy[cc] = out_1d[cc + sb18];
1819 tsOutCopy[cc] = inter[cc + sb18];
1824 for (int cc = 0; cc < 18; cc++) {
1825 out_1d[cc + sb18] = tsOutCopy[cc];
1831 out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
1832 out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
1833 out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
1834 out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
1835 out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
1836 out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
1837 out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
1838 out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
1839 out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
1840 out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
1841 out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
1842 out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
1843 out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
1844 out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
1845 out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
1846 out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
1847 out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
1848 out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
1849 raw_full[ch][sb18 + 0] = rawout[18];
1850 raw_full[ch][sb18 + 1] = rawout[19];
1851 raw_full[ch][sb18 + 2] = rawout[20];
1852 raw_full[ch][sb18 + 3] = rawout[21];
1853 raw_full[ch][sb18 + 4] = rawout[22];
1854 raw_full[ch][sb18 + 5] = rawout[23];
1855 raw_full[ch][sb18 + 6] = rawout[24];
1856 raw_full[ch][sb18 + 7] = rawout[25];
1857 raw_full[ch][sb18 + 8] = rawout[26];
1858 raw_full[ch][sb18 + 9] = rawout[27];
1859 raw_full[ch][sb18 + 10] = rawout[28];
1860 raw_full[ch][sb18 + 11] = rawout[29];
1861 raw_full[ch][sb18 + 12] = rawout[30];
1862 raw_full[ch][sb18 + 13] = rawout[31];
1863 raw_full[ch][sb18 + 14] = rawout[32];
1864 raw_full[ch][sb18 + 15] = rawout[33];
1865 raw_full[ch][sb18 + 16] = rawout[34];
1866 raw_full[ch][sb18 + 17] = rawout[35];
1868 // original implementation:
1869 // out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
1870 // prevblck[ch][sb18 + 0] = rawout[18];
1871 // out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
1872 // prevblck[ch][sb18 + 1] = rawout[19];
1873 // out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
1874 // prevblck[ch][sb18 + 2] = rawout[20];
1875 // out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
1876 // prevblck[ch][sb18 + 3] = rawout[21];
1877 // out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
1878 // prevblck[ch][sb18 + 4] = rawout[22];
1879 // out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
1880 // prevblck[ch][sb18 + 5] = rawout[23];
1881 // out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
1882 // prevblck[ch][sb18 + 6] = rawout[24];
1883 // out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
1884 // prevblck[ch][sb18 + 7] = rawout[25];
1885 // out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
1886 // prevblck[ch][sb18 + 8] = rawout[26];
1887 // out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
1888 // prevblck[ch][sb18 + 9] = rawout[27];
1889 // out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
1890 // prevblck[ch][sb18 + 10] = rawout[28];
1891 // out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
1892 // prevblck[ch][sb18 + 11] = rawout[29];
1893 // out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
1894 // prevblck[ch][sb18 + 12] = rawout[30];
1895 // out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
1896 // prevblck[ch][sb18 + 13] = rawout[31];
1897 // out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
1898 // prevblck[ch][sb18 + 14] = rawout[32];
1899 // out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
1900 // prevblck[ch][sb18 + 15] = rawout[33];
1901 // out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
1902 // prevblck[ch][sb18 + 16] = rawout[34];
1903 // out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
1904 // prevblck[ch][sb18 + 17] = rawout[35];
1912 private void do_downmix() {
1913 for (int sb = 0; sb < SSLIMIT; sb++) {
1914 for (int ss = 0; ss < SSLIMIT; ss += 3) {
1915 lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f;
1916 lr[0][sb][ss + 1] = (lr[0][sb][ss + 1] + lr[1][sb][ss + 1]) * 0.5f;
1917 lr[0][sb][ss + 2] = (lr[0][sb][ss + 2] + lr[1][sb][ss + 2]) * 0.5f;
1926 // public void inv_mdct( float[] in, float[] out,
1927 // int block_type) {//remove alias
1930 public void inv_mdct(int block_type) {
1953 tmpf_0 = tmpf_1 = tmpf_2 = tmpf_3 = tmpf_4 = tmpf_5 = tmpf_6 = tmpf_7 = tmpf_8 = tmpf_9 = tmpf_10 = tmpf_11 = tmpf_12 = tmpf_13 = tmpf_14 = tmpf_15 = tmpf_16 = tmpf_17 = 0.0f;
1955 if (block_type == 2) {
1959 * Under MicrosoftVM 2922, This causes a GPF, or At best, an
1960 * ArrayIndexOutOfBoundsExceptin. for(int p=0;p<36;p+=9) { out[p] =
1961 * out[p+1] = out[p+2] = out[p+3] = out[p+4] = out[p+5] = out[p+6] =
1962 * out[p+7] = out[p+8] = 0.0f; }
2003 for (i = 0; i < 3; i++) {
2005 // Begin 12 point IDCT
2006 // Input aliasing for 12 pt IDCT
2007 tsOutCopy[15 + i] += tsOutCopy[12 + i];
2008 tsOutCopy[12 + i] += tsOutCopy[9 + i];
2009 tsOutCopy[9 + i] += tsOutCopy[6 + i];
2010 tsOutCopy[6 + i] += tsOutCopy[3 + i];
2011 tsOutCopy[3 + i] += tsOutCopy[0 + i];
2013 // Input aliasing on odd indices (for 6 point IDCT)
2014 tsOutCopy[15 + i] += tsOutCopy[9 + i];
2015 tsOutCopy[9 + i] += tsOutCopy[3 + i];
2017 // 3 point IDCT on even indices
2021 pp2 = tsOutCopy[12 + i] * 0.500000000f;
2022 pp1 = tsOutCopy[6 + i] * 0.866025403f;
2023 sum = tsOutCopy[0 + i] + pp2;
2024 tmpf_1 = tsOutCopy[0 + i] - tsOutCopy[12 + i];
2028 // End 3 point IDCT on even indices
2029 // 3 point IDCT on odd indices (for 6 point IDCT)
2030 pp2 = tsOutCopy[15 + i] * 0.500000000f;
2031 pp1 = tsOutCopy[9 + i] * 0.866025403f;
2032 sum = tsOutCopy[3 + i] + pp2;
2033 tmpf_4 = tsOutCopy[3 + i] - tsOutCopy[15 + i];
2036 // End 3 point IDCT on odd indices
2037 // Twiddle factors on odd indices (for 6 point IDCT)
2039 tmpf_3 *= 1.931851653f;
2040 tmpf_4 *= 0.707106781f;
2041 tmpf_5 *= 0.517638090f;
2043 // Output butterflies on 2 3 point IDCT's (for 6 point IDCT)
2044 float save = tmpf_0;
2046 tmpf_5 = save - tmpf_5;
2049 tmpf_4 = save - tmpf_4;
2052 tmpf_3 = save - tmpf_3;
2055 // Twiddle factors on indices (for 12 point IDCT)
2057 tmpf_0 *= 0.504314480f;
2058 tmpf_1 *= 0.541196100f;
2059 tmpf_2 *= 0.630236207f;
2060 tmpf_3 *= 0.821339815f;
2061 tmpf_4 *= 1.306562965f;
2062 tmpf_5 *= 3.830648788f;
2064 // End 12 point IDCT
2066 // Shift to 12 point modified IDCT, multiply by window type 2
2067 tmpf_8 = -tmpf_0 * 0.793353340f;
2068 tmpf_9 = -tmpf_0 * 0.608761429f;
2069 tmpf_7 = -tmpf_1 * 0.923879532f;
2070 tmpf_10 = -tmpf_1 * 0.382683432f;
2071 tmpf_6 = -tmpf_2 * 0.991444861f;
2072 tmpf_11 = -tmpf_2 * 0.130526192f;
2075 tmpf_1 = tmpf_4 * 0.382683432f;
2076 tmpf_2 = tmpf_5 * 0.608761429f;
2078 tmpf_3 = -tmpf_5 * 0.793353340f;
2079 tmpf_4 = -tmpf_4 * 0.923879532f;
2080 tmpf_5 = -tmpf_0 * 0.991444861f;
2082 tmpf_0 *= 0.130526192f;
2084 rawout[six_i + 6] += tmpf_0;
2085 rawout[six_i + 7] += tmpf_1;
2086 rawout[six_i + 8] += tmpf_2;
2087 rawout[six_i + 9] += tmpf_3;
2088 rawout[six_i + 10] += tmpf_4;
2089 rawout[six_i + 11] += tmpf_5;
2090 rawout[six_i + 12] += tmpf_6;
2091 rawout[six_i + 13] += tmpf_7;
2092 rawout[six_i + 14] += tmpf_8;
2093 rawout[six_i + 15] += tmpf_9;
2094 rawout[six_i + 16] += tmpf_10;
2095 rawout[six_i + 17] += tmpf_11;
2101 // input aliasing for 36 point IDCT
2102 tsOutCopy[17] += tsOutCopy[16];
2103 tsOutCopy[16] += tsOutCopy[15];
2104 tsOutCopy[15] += tsOutCopy[14];
2105 tsOutCopy[14] += tsOutCopy[13];
2106 tsOutCopy[13] += tsOutCopy[12];
2107 tsOutCopy[12] += tsOutCopy[11];
2108 tsOutCopy[11] += tsOutCopy[10];
2109 tsOutCopy[10] += tsOutCopy[9];
2110 tsOutCopy[9] += tsOutCopy[8];
2111 tsOutCopy[8] += tsOutCopy[7];
2112 tsOutCopy[7] += tsOutCopy[6];
2113 tsOutCopy[6] += tsOutCopy[5];
2114 tsOutCopy[5] += tsOutCopy[4];
2115 tsOutCopy[4] += tsOutCopy[3];
2116 tsOutCopy[3] += tsOutCopy[2];
2117 tsOutCopy[2] += tsOutCopy[1];
2118 tsOutCopy[1] += tsOutCopy[0];
2120 // 18 point IDCT for odd indices
2121 // input aliasing for 18 point IDCT
2122 tsOutCopy[17] += tsOutCopy[15];
2123 tsOutCopy[15] += tsOutCopy[13];
2124 tsOutCopy[13] += tsOutCopy[11];
2125 tsOutCopy[11] += tsOutCopy[9];
2126 tsOutCopy[9] += tsOutCopy[7];
2127 tsOutCopy[7] += tsOutCopy[5];
2128 tsOutCopy[5] += tsOutCopy[3];
2129 tsOutCopy[3] += tsOutCopy[1];
2150 // Fast 9 Point Inverse Discrete Cosine Transform
2152 // By Francois-Raymond Boyer
2153 // mailto:boyerf@iro.umontreal.ca
2154 // http://www.iro.umontreal.ca/~boyerf
2156 // The code has been optimized for Intel processors
2157 // (takes a lot of time to convert float to and from iternal FPU
2160 // It is a simple "factorization" of the IDCT matrix.
2162 // 9 point IDCT on even indices
2164 // 5 points on odd indices (not realy an IDCT)
2165 float i00 = tsOutCopy[0] + tsOutCopy[0];
2166 float iip12 = i00 + tsOutCopy[12];
2168 tmp0 = iip12 + tsOutCopy[4] * 1.8793852415718f + tsOutCopy[8] * 1.532088886238f + tsOutCopy[16] * 0.34729635533386f;
2169 tmp1 = i00 + tsOutCopy[4] - tsOutCopy[8] - tsOutCopy[12] - tsOutCopy[12] - tsOutCopy[16];
2170 tmp2 = iip12 - tsOutCopy[4] * 0.34729635533386f - tsOutCopy[8] * 1.8793852415718f + tsOutCopy[16] * 1.532088886238f;
2171 tmp3 = iip12 - tsOutCopy[4] * 1.532088886238f + tsOutCopy[8] * 0.34729635533386f - tsOutCopy[16] * 1.8793852415718f;
2172 tmp4 = tsOutCopy[0] - tsOutCopy[4] + tsOutCopy[8] - tsOutCopy[12] + tsOutCopy[16];
2174 // 4 points on even indices
2175 float i66_ = tsOutCopy[6] * 1.732050808f; // Sqrt[3]
2177 tmp0_ = tsOutCopy[2] * 1.9696155060244f + i66_ + tsOutCopy[10] * 1.2855752193731f + tsOutCopy[14] * 0.68404028665134f;
2178 tmp1_ = (tsOutCopy[2] - tsOutCopy[10] - tsOutCopy[14]) * 1.732050808f;
2179 tmp2_ = tsOutCopy[2] * 1.2855752193731f - i66_ - tsOutCopy[10] * 0.68404028665134f + tsOutCopy[14] * 1.9696155060244f;
2180 tmp3_ = tsOutCopy[2] * 0.68404028665134f - i66_ + tsOutCopy[10] * 1.9696155060244f - tsOutCopy[14] * 1.2855752193731f;
2182 // 9 point IDCT on odd indices
2183 // 5 points on odd indices (not realy an IDCT)
2184 float i0 = tsOutCopy[0 + 1] + tsOutCopy[0 + 1];
2185 float i0p12 = i0 + tsOutCopy[12 + 1];
2187 tmp0o = i0p12 + tsOutCopy[4 + 1] * 1.8793852415718f + tsOutCopy[8 + 1] * 1.532088886238f + tsOutCopy[16 + 1] * 0.34729635533386f;
2188 tmp1o = i0 + tsOutCopy[4 + 1] - tsOutCopy[8 + 1] - tsOutCopy[12 + 1] - tsOutCopy[12 + 1] - tsOutCopy[16 + 1];
2189 tmp2o = i0p12 - tsOutCopy[4 + 1] * 0.34729635533386f - tsOutCopy[8 + 1] * 1.8793852415718f + tsOutCopy[16 + 1] * 1.532088886238f;
2190 tmp3o = i0p12 - tsOutCopy[4 + 1] * 1.532088886238f + tsOutCopy[8 + 1] * 0.34729635533386f - tsOutCopy[16 + 1] * 1.8793852415718f;
2191 tmp4o = (tsOutCopy[0 + 1] - tsOutCopy[4 + 1] + tsOutCopy[8 + 1] - tsOutCopy[12 + 1] + tsOutCopy[16 + 1]) * 0.707106781f; // Twiddled
2193 // 4 points on even indices
2194 float i6_ = tsOutCopy[6 + 1] * 1.732050808f; // Sqrt[3]
2196 tmp0_o = tsOutCopy[2 + 1] * 1.9696155060244f + i6_ + tsOutCopy[10 + 1] * 1.2855752193731f + tsOutCopy[14 + 1] * 0.68404028665134f;
2197 tmp1_o = (tsOutCopy[2 + 1] - tsOutCopy[10 + 1] - tsOutCopy[14 + 1]) * 1.732050808f;
2198 tmp2_o = tsOutCopy[2 + 1] * 1.2855752193731f - i6_ - tsOutCopy[10 + 1] * 0.68404028665134f + tsOutCopy[14 + 1] * 1.9696155060244f;
2199 tmp3_o = tsOutCopy[2 + 1] * 0.68404028665134f - i6_ + tsOutCopy[10 + 1] * 1.9696155060244f - tsOutCopy[14 + 1] * 1.2855752193731f;
2201 // Twiddle factors on odd indices
2203 // Butterflies on 9 point IDCT's
2205 // twiddle factors for 36 point IDCT
2210 o = (tmp0o + tmp0_o) * 0.501909918f;
2214 o = (tmp1o + tmp1_o) * 0.517638090f;
2218 o = (tmp2o + tmp2_o) * 0.551688959f;
2222 o = (tmp3o + tmp3_o) * 0.610387294f;
2225 tmpf_4 = tmp4 + tmp4o;
2226 tmpf_13 = tmp4 - tmp4o;
2228 o = (tmp3o - tmp3_o) * 0.871723397f;
2232 o = (tmp2o - tmp2_o) * 1.183100792f;
2236 o = (tmp1o - tmp1_o) * 1.931851653f;
2240 o = (tmp0o - tmp0_o) * 5.736856623f;
2244 // end 36 point IDCT */
2245 // shift to modified IDCT
2246 // win_bt = win[block_type]; //substituted this so that a new area does
2247 // not become created
2249 rawout[0] = -tmpf_9 * win[block_type][0];
2250 rawout[1] = -tmpf_10 * win[block_type][1];
2251 rawout[2] = -tmpf_11 * win[block_type][2];
2252 rawout[3] = -tmpf_12 * win[block_type][3];
2253 rawout[4] = -tmpf_13 * win[block_type][4];
2254 rawout[5] = -tmpf_14 * win[block_type][5];
2255 rawout[6] = -tmpf_15 * win[block_type][6];
2256 rawout[7] = -tmpf_16 * win[block_type][7];
2257 rawout[8] = -tmpf_17 * win[block_type][8];
2258 rawout[9] = tmpf_17 * win[block_type][9];
2259 rawout[10] = tmpf_16 * win[block_type][10];
2260 rawout[11] = tmpf_15 * win[block_type][11];
2261 rawout[12] = tmpf_14 * win[block_type][12];
2262 rawout[13] = tmpf_13 * win[block_type][13];
2263 rawout[14] = tmpf_12 * win[block_type][14];
2264 rawout[15] = tmpf_11 * win[block_type][15];
2265 rawout[16] = tmpf_10 * win[block_type][16];
2266 rawout[17] = tmpf_9 * win[block_type][17];
2267 rawout[18] = tmpf_8 * win[block_type][18];
2268 rawout[19] = tmpf_7 * win[block_type][19];
2269 rawout[20] = tmpf_6 * win[block_type][20];
2270 rawout[21] = tmpf_5 * win[block_type][21];
2271 rawout[22] = tmpf_4 * win[block_type][22];
2272 rawout[23] = tmpf_3 * win[block_type][23];
2273 rawout[24] = tmpf_2 * win[block_type][24];
2274 rawout[25] = tmpf_1 * win[block_type][25];
2275 rawout[26] = tmpf_0 * win[block_type][26];
2276 rawout[27] = tmpf_0 * win[block_type][27];
2277 rawout[28] = tmpf_1 * win[block_type][28];
2278 rawout[29] = tmpf_2 * win[block_type][29];
2279 rawout[30] = tmpf_3 * win[block_type][30];
2280 rawout[31] = tmpf_4 * win[block_type][31];
2281 rawout[32] = tmpf_5 * win[block_type][32];
2282 rawout[33] = tmpf_6 * win[block_type][33];
2283 rawout[34] = tmpf_7 * win[block_type][34];
2284 rawout[35] = tmpf_8 * win[block_type][35];
2289 private int counter = 0;
2290 private static final int SSLIMIT = 18;
2291 private static final int SBLIMIT = 32;
2293 // Size of the table of whole numbers raised to 4/3 power.
2294 // This may be adjusted for performance without any problems.
2295 // public static final int POW_TABLE_LIMIT=512;
2297 private static final int slen[][] = { { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 }, { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 } };
2299 public static final int pretab[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0 };
2301 private SBI[] sfBandIndex; // Init in the constructor.
2303 public static final float two_to_negative_half_pow[] = { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339059E-01f, 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347648E-02f, 6.2500000000E-02f, 4.4194173824E-02f, 3.1250000000E-02f, 2.2097086912E-02f, 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000000E-03f, 5.5242717280E-03f, 3.9062500000E-03f, 2.7621358640E-03f, 1.9531250000E-03f, 1.3810679320E-03f, 9.7656250000E-04f, 6.9053396600E-04f, 4.8828125000E-04f, 3.4526698300E-04f, 2.4414062500E-04f, 1.7263349150E-04f, 1.2207031250E-04f, 8.6316745750E-05f, 6.1035156250E-05f, 4.3158372875E-05f, 3.0517578125E-05f, 2.1579186438E-05f, 1.5258789062E-05f, 1.0789593219E-05f, 7.6293945312E-06f, 5.3947966094E-06f, 3.8146972656E-06f, 2.6973983047E-06f, 1.9073486328E-06f, 1.3486991523E-06f, 9.5367431641E-07f, 6.7434957617E-07f, 4.7683715820E-07f, 3.3717478809E-07f, 2.3841857910E-07f, 1.6858739404E-07f, 1.1920928955E-07f, 8.4293697022E-08f, 5.9604644775E-08f, 4.2146848511E-08f, 2.9802322388E-08f, 2.1073424255E-08f, 1.4901161194E-08f, 1.0536712128E-08f, 7.4505805969E-09f, 5.2683560639E-09f, 3.7252902985E-09f, 2.6341780319E-09f, 1.8626451492E-09f, 1.3170890160E-09f, 9.3132257462E-10f, 6.5854450798E-10f, 4.6566128731E-10f, 3.2927225399E-10f };
2305 public static final float t_43[] = create_t_43();
2307 static private float[] create_t_43() {
2308 float[] t43 = new float[8192];
2309 final double d43 = (4.0 / 3.0);
2311 for (int i = 0; i < 8192; i++) {
2312 t43[i] = (float) Math.pow(i, d43);
2317 public static final float io[][] = { { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f, 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f, 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f, 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f, 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f, 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f, 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f, 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f }, { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f, 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f, 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f, 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f, 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f, 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f, 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f, 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } };
2319 public static final float TAN12[] = { 0.0f, 0.26794919f, 0.57735027f, 1.0f, 1.73205081f, 3.73205081f, 9.9999999e10f, -3.73205081f, -1.73205081f, -1.0f, -0.57735027f, -0.26794919f, 0.0f, 0.26794919f, 0.57735027f, 1.0f };
2321 // REVIEW: in java, the array lookup may well be slower than
2322 // the actual calculation
2325 * private static final int ss_div[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2326 * 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
2327 * 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
2328 * 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
2329 * 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6,
2330 * 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
2331 * 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
2332 * 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
2333 * 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
2334 * 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
2335 * 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
2336 * 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14,
2337 * 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
2338 * 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
2339 * 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
2340 * 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
2341 * 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
2342 * 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
2343 * 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
2344 * 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
2345 * 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
2346 * 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25,
2347 * 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26,
2348 * 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27,
2349 * 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
2350 * 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
2351 * 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30,
2352 * 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31,
2353 * 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 };
2355 * // 576 % 18 private static final int ss_mod[] = { 0, 1, 2, 3, 4, 5, 6, 7,
2356 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2357 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2358 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2359 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2360 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2361 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2362 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2363 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2364 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2365 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2366 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2367 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2368 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2369 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2370 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2371 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2372 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2373 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2374 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2375 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2376 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2377 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2378 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2379 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2380 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2381 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2382 * 12, 13, 14, 15, 16, 17 };
2385 private static/* final */int reorder_table[][]/* = loadReorderTable() */; // SZD:
2394 * Loads the data for the reorder
2397 * private static int[][] loadReorderTable() // SZD: table will be generated {
2398 * try { Class elemType = int[][].class.getComponentType(); Object o =
2399 * JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6);
2400 * return (int[][])o; } catch (IOException ex) { throw new
2401 * ExceptionInInitializerError(ex); } }
2404 static int[] reorder(int[] scalefac_band) { // SZD: converted from
2407 int ix[] = new int[576];
2408 for (int sfb = 0; sfb < 13; sfb++) {
2409 int start = scalefac_band[sfb];
2410 int end = scalefac_band[sfb + 1];
2411 for (int window = 0; window < 3; window++)
2412 for (int i = start; i < end; i++)
2413 ix[3 * i + window] = j++;
2419 * static final int reorder_table_data[][]; = { { 0, 4, 8, 1, 5, 9, 2, 6, 10,
2420 * 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25,
2421 * 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45,
2422 * 51, 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, 63, 69,
2423 * 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, 90, 75, 83, 91, 76,
2424 * 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, 96,106,116, 97,107,117,
2425 * 98,108,118, 99,109,119,100,110,120,101,
2426 * 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140,
2427 * 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159,
2428 * 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137,
2429 * 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188,
2430 * 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211,
2431 * 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181,
2432 * 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248,
2433 * 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279,
2434 * 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233,
2435 * 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264,
2436 * 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295,
2437 * 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301,
2438 * 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338,
2439 * 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375,
2440 * 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317,
2441 * 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354,
2442 * 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391,
2443 * 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397,
2444 * 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444,
2445 * 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491,
2446 * 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413,
2447 * 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460,
2448 * 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507,
2449 * 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429,
2450 * 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476,
2451 * 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559,
2452 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2453 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2454 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2455 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2456 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2457 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2458 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2459 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2460 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2461 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2462 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2463 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2464 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2465 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2466 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2467 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2468 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2469 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2470 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2471 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2472 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2473 * 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346,
2474 * 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383,
2475 * 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325,
2476 * 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362,
2477 * 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399,
2478 * 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341,
2479 * 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454,
2480 * 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503,
2481 * 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421,
2482 * 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470,
2483 * 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519,
2484 * 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437,
2485 * 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486,
2486 * 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535,
2487 * 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541,
2488 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2489 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, { 0, 4,
2490 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2491 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2492 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2493 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2494 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2495 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2496 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2497 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2498 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2499 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2500 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2501 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2502 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2503 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2504 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2505 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2506 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2507 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2508 * 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344,
2509 * 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379,
2510 * 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325,
2511 * 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360,
2512 * 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395,
2513 * 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341,
2514 * 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446,
2515 * 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491,
2516 * 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417,
2517 * 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462,
2518 * 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507,
2519 * 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433,
2520 * 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478,
2521 * 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559,
2522 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2523 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2524 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2525 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2526 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2527 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2528 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2529 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, 92,102,112,
2530 * 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, 107,117, 98,108,118,
2531 * 99,109,119,120,132,144,121,133,145,122,134,
2532 * 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151,
2533 * 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157,
2534 * 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176,
2535 * 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195,
2536 * 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201,
2537 * 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224,
2538 * 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247,
2539 * 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253,
2540 * 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280,
2541 * 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307,
2542 * 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269,
2543 * 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348,
2544 * 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383,
2545 * 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329,
2546 * 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364,
2547 * 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399,
2548 * 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345,
2549 * 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466,
2550 * 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527,
2551 * 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421,
2552 * 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482,
2553 * 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543,
2554 * 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437,
2555 * 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498,
2556 * 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559,
2557 * 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453,
2558 * 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514,
2559 * 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, { 0, 4,
2560 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2561 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2562 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2563 * 58, 64, 53, 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76,
2564 * 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, 88, 98,108,
2565 * 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93,
2566 * 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130,
2567 * 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147,
2568 * 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153,
2569 * 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172,
2570 * 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191,
2571 * 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197,
2572 * 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218,
2573 * 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239,
2574 * 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245,
2575 * 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270,
2576 * 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295,
2577 * 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301,
2578 * 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332,
2579 * 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363,
2580 * 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317,
2581 * 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348,
2582 * 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511,
2583 * 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385,
2584 * 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456,
2585 * 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527,
2586 * 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401,
2587 * 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472,
2588 * 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543,
2589 * 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417,
2590 * 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488,
2591 * 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559,
2592 * 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433,
2593 * 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504,
2594 * 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, { 0, 4,
2595 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2596 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2597 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2598 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2599 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, 92,104,116,
2600 * 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, 109,121, 98,110,122,
2601 * 99,111,123,100,112,124,101,113,125,126,142,
2602 * 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163,
2603 * 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137,
2604 * 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194,
2605 * 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219,
2606 * 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185,
2607 * 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210,
2608 * 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287,
2609 * 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241,
2610 * 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272,
2611 * 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303,
2612 * 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257,
2613 * 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348,
2614 * 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387,
2615 * 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325,
2616 * 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364,
2617 * 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403,
2618 * 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341,
2619 * 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456,
2620 * 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503,
2621 * 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425,
2622 * 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472,
2623 * 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519,
2624 * 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441,
2625 * 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488,
2626 * 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535,
2627 * 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541,
2628 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2629 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} };
2632 private static final float cs[] = { 0.857492925712f, 0.881741997318f, 0.949628649103f, 0.983314592492f, 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f };
2634 private static final float ca[] = { -0.5144957554270f, -0.4717319685650f, -0.3133774542040f, -0.1819131996110f, -0.0945741925262f, -0.0409655828852f, -0.0141985685725f, -0.00369997467375f };
2636 /************************************************************/
2637 /* END OF L3TABLE */
2638 /************************************************************/
2640 /************************************************************/
2642 /************************************************************/
2644 /***************************************************************/
2646 /***************************************************************/
2648 /***************************************************************/
2650 /***************************************************************/
2651 public static final float win[][] = { { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f, -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f, -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f, -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f, -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f, -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f, -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f, -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f, -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f },
2653 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f, -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f, -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f, -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f, -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f, -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f, -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f, -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2655 { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f, -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f, -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2657 { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f, -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f, -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f, -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f, -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f, -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f, -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f, -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } };
2659 /***************************************************************/
2660 /* END OF INV_MDCT */
2661 /***************************************************************/
2663 public static final int nr_of_sfb_block[][][] = { { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } }, { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } }, { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } }, { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } }, { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } }, { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } } };
2667 /************************************************************/
2669 /************************************************************/
2682 public SBI(@DELEGATE int[] thel, @DELEGATE int[] thes) {
2690 public int part2_3_length = 0;
2692 public int big_values = 0;
2694 public int global_gain = 0;
2696 public int scalefac_compress = 0;
2698 public int window_switching_flag = 0;
2700 public int block_type = 0;
2702 public int mixed_block_flag = 0;
2704 public int[] table_select;
2706 public int[] subblock_gain;
2708 public int region0_count = 0;
2710 public int region1_count = 0;
2712 public int preflag = 0;
2714 public int scalefac_scale = 0;
2716 public int count1table_select = 0;
2721 public gr_info_s() {
2722 table_select = new int[3];
2723 subblock_gain = new int[3];
2731 public gr_info_s[] gr;
2736 public temporaire() {
2738 gr = new gr_info_s[2];
2739 gr[0] = new gr_info_s();
2740 gr[1] = new gr_info_s();
2744 class III_side_info_t {
2746 public int main_data_begin = 0;
2748 public int private_bits = 0;
2750 public temporaire[] ch;
2755 public III_side_info_t() {
2756 ch = new temporaire[2];
2757 ch[0] = new temporaire();
2758 ch[1] = new temporaire();
2764 public int[] l; /* [cb] */
2766 public int[][] s; /* [window][cb] */
2771 public temporaire2() {
2777 // class III_scalefac_t
2779 // public temporaire2[] tab;
2781 // * Dummy Constructor
2783 // public III_scalefac_t()
2785 // tab = new temporaire2[2];