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.
40 // @LATTICE("FS<BR,BR<SF,LR<IR,IR<IP,IP<SF,LR<K,K<F,LR<VAR,LR<RO,RO<F,VAR<F,VAR<RAW,CSH<F,SAM<O,O<F,NS<SI,SI<CH,SFREQ<H,MAX<H,H<CH,FLCH<CH,FLCH<WC,SF<SFT,SFT<NS,NS<C,TS<RAW,O<TS,LY<F,NZ<VAR,C*,FS*,IP*,IR*,LR*,K*,O*,TS*,TS<BT,BT<GR,GR<SI,LR<S,S<ME,ME<CH,K<SH,K<LSF,LSF<H,LSF<CH,IP<SH,SH<J,J<S,S<ME,SH<SFREQ,SH<RO,IP<TMP2,LSF<H,TMP2<F,J*,SH*,O<RO2,RO2<RO3,RO3<RO4,RO4<RO5,O<RO1,RO1<RO5,RO5<RO6,RO6<RO7,RO7<RO8,RO8<RO9,RO9<SFREQ,RO9<F,RO1*,RO4*,RO5*,RO6*,RO9*,VAR<HD3,HD3<HD2,HD2<HD1,HD1<SI,HD1<SFREQ,HD1<RAW,HD2*,HD3*,SFB<GLSFD5,GLSFD5<NS,GLSFD5<GLSFD4,NS<GLSFD3,GLSFD4<GLSFD3,GLSFD3<GLSFD2,GLSFD2<GLSFD1,GLSFD1<SI,GLSFD5*,SF<GLSFF4,GLSFF4<GLSFF3,GLSFF3<GLSFF2,GLSFF2<GLSFF1,GLSFF1<SI,GLSFF4*,GLSFF3*,GLSFF2*,SF<GSF5,GSF5<GSF4,GSF4<GSF3,GSF3<GSF2,GSF2<GSF1,GSF1<SI,GSF5*,GSF4*,O<D3,D3<D2,D2<D1,D1<FLCH,D1*,D2*")
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
49 // @LATTICE("IS1D*,RO<IS1D,IS1D<SI2,SI2<SI1,SI<P2S,SF1<CH0,SF0*,SFB_SH<NS,NS<SI,SFB_SH*,SFB<SFB_SH,C,C*,SI1<SF2,SF2<SFB,SF1<BR,LR*,OUT<LR,LR<RO,NZ*,SI<SF1,SI1<NZ,NZ<SI,SI1<SBI,SBI<SI,BUF<FT,SF1<SF0,SF0<HD1,BR<ST,ST,FT<SP,SP<OUT,OUT<SI1,SI1<SI,P2S<CH0,CH0<MAX0,MAX0<BR1,FS<BR1,BR1<BR,BR<HD1,HD1<HD,OUT*,BR1*,SI1*,MAX0*,CH0*,RAW,TS,F,C,K,LY,VAR,IR,IP,CSH,GLSFD3,GLSFD4,GLSFD5,GLSFF4,GLSFF2,GLSFF3,GLSFF1,GSF4,GSF5,GSF1,GSF2,GSF3,HD2,HD3,BT,GR,RO6,RO5,RO9,RO8,RO7,RO4,RO1,RO3,RO2,SH,ME,TMP2,S,LSF,J")
50 @LATTICE("SI0*,INIT*,ISR*,ISP*,HD<CH0,LR<ISR,ISR<ISP,SI1<SF2,NS*,CH0<ST,ST<INIT,IS1D*,RO1<RO,RO1*,RO<IS1D,IS1D<SI2,SI2<SI1,BR<NS,NS<SI,SFB_SH*,SFB<SFB_SH,C,C*,SF2<SFB,LR*,OUT<LR,ISP<RO1,NZ*,SI<SI0,SI0<SF15,SF15<SF1,BR1<NZ,NZ<BR,SI1<RT,RT<SBI,SBI<SI,BUF<FT,SF1<HD1,SF1<HD1,FT<SP,SP<OUT,OUT<SI1,SI1<SI,SFB_SH<BR1,BR1<BR,HD1<HD,OUT*,BR1*,SI1*,CH0*")
51 @METHODDEFAULT("OUT<V,V<THIS,THIS<SH,SH<IN,SH*,THISLOC=THIS,GLOBALLOC=IN,RETURNLOC=OUT")
52 final class LayerIIIDecoder implements FrameDecoder {
53 static final double d43 = (4.0 / 3.0);
55 public int[] scalefac_buffer;
57 // MDM: removed, as this wasn't being used.
58 // private float CheckSumOut1d = 0.0f;
60 private int CheckSumHuff = 0;
64 private float[][][] ro;
66 private float[][][] lr;
68 private float[] inter; // 576 samples
70 private float[] out_1d; // 576 samples
72 private float[][] prevblck;
76 private int[] nonzero;
78 private SynthesisFilter filter1;
80 private SynthesisFilter filter2;
82 // private Obuffer buffer; // output buffer
84 private int which_channels;
86 private BitReserve br;
88 private III_side_info_t si;
90 // @LOC("SBT") private temporaire2[] III_scalefac_t;
92 private final temporaire2[] scalefac;
93 // private III_scalefac_t scalefac;
98 private int frame_start;
99 // @LOC("SI1") private int part2_start;
101 private final int channels;
103 private int first_channel;
105 private int last_channel;
110 private int part2_start;
113 private boolean initialized = false;
115 // constructor for the linear type system
116 public LayerIIIDecoder(Header h, @DELEGATE @LOC("VAR") SynthesisFilter filtera,
117 @DELEGATE @LOC("VAR") SynthesisFilter filterb, @LOC("VAR") int which_ch0) {
122 huffcodetab.inithuff();
123 is_1d = new int[SBLIMIT * SSLIMIT + 4];
124 ro = new float[2][SBLIMIT][SSLIMIT];
125 lr = new float[2][SBLIMIT][SSLIMIT];
126 out_1d = new float[SBLIMIT * SSLIMIT];
127 inter = new float[SBLIMIT * SSLIMIT];
128 prevblck = new float[2][SBLIMIT * SSLIMIT];
129 k = new float[2][SBLIMIT * SSLIMIT];
130 nonzero = new int[2];
132 // removes unnecessary aliases
134 // III_scalefac_t = new temporaire2[2];
135 // III_scalefac_t[0] = new temporaire2();
136 // III_scalefac_t[1] = new temporaire2();
137 // scalefac = III_scalefac_t;
139 scalefac = new temporaire2[2];
140 scalefac[0] = new temporaire2();
141 scalefac[1] = new temporaire2();
145 sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
146 @LOC("VAR") int[] l0 =
147 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
149 @LOC("VAR") int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192 };
150 @LOC("VAR") int[] l1 =
151 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 330, 394,
153 @LOC("VAR") int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192 };
154 @LOC("VAR") int[] l2 =
155 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
157 @LOC("VAR") int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
159 @LOC("VAR") int[] l3 =
160 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342,
162 @LOC("VAR") int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192 };
163 @LOC("VAR") int[] l4 =
164 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330,
166 @LOC("VAR") int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192 };
167 @LOC("VAR") int[] l5 =
168 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448,
170 @LOC("VAR") int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192 };
172 @LOC("VAR") int[] l6 =
173 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
175 @LOC("VAR") int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
176 @LOC("VAR") int[] l7 =
177 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
179 @LOC("VAR") int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
180 @LOC("VAR") int[] l8 =
181 { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568,
182 570, 572, 574, 576 };
183 @LOC("VAR") int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 };
185 sfBandIndex[0] = new SBI(l0, s0);
186 sfBandIndex[1] = new SBI(l1, s1);
187 sfBandIndex[2] = new SBI(l2, s2);
189 sfBandIndex[3] = new SBI(l3, s3);
190 sfBandIndex[4] = new SBI(l4, s4);
191 sfBandIndex[5] = new SBI(l5, s5);
193 sfBandIndex[6] = new SBI(l6, s6);
194 sfBandIndex[7] = new SBI(l7, s7);
195 sfBandIndex[8] = new SBI(l8, s8);
196 // END OF L3TABLE INIT
198 if (reorder_table == null) { // SZD: generate LUT
199 reorder_table = new int[9][];
200 for (@LOC("I") int i = 0; i < 9; i++)
201 reorder_table[i] = reorder(sfBandIndex[i].s);
205 scalefac_buffer = new int[54];
206 // END OF scalefac_buffer
211 @LATTICE("THIS<C,THIS<IN,C*,THISLOC=THIS")
212 private void init(@LOC("THIS,LayerIIIDecoder.HD1") Header header) {
215 channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
216 max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
219 header.sample_frequency()
220 + ((header.version() == Header.MPEG1) ? 3 : (header.version() == Header.MPEG25_LSF) ? 6
224 switch (which_channels) {
225 case OutputChannels.LEFT_CHANNEL:
226 case OutputChannels.DOWNMIX_CHANNELS:
227 first_channel = last_channel = 0;
230 case OutputChannels.RIGHT_CHANNEL:
231 first_channel = last_channel = 1;
234 case OutputChannels.BOTH_CHANNELS:
241 first_channel = last_channel = 0;
244 for (@LOC("THIS,LayerIIIDecoder.CH0") int ch = 0; ch < 2; ch++)
245 for (@LOC("THIS,LayerIIIDecoder.CH0") int j = 0; j < 576; j++)
246 prevblck[ch][j] = 0.0f;
248 nonzero[0] = nonzero[1] = 576;
250 si = new III_side_info_t();
259 // REVIEW: these constructor arguments should be moved to the
260 // decodeFrame() method, where possible, so that one
261 // @LATTICE("THIS<VAR,THIS<I,THIS<J,J<CH,I*,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
262 // public LayerIIIDecoder(@LOC("VAR") Header header0, @LOC("VAR")
263 // SynthesisFilter filtera,
264 // @LOC("VAR") SynthesisFilter filterb, @LOC("VAR") int which_ch0) {
266 // huffcodetab.inithuff();
267 // is_1d = new int[SBLIMIT * SSLIMIT + 4];
268 // ro = new float[2][SBLIMIT][SSLIMIT];
269 // lr = new float[2][SBLIMIT][SSLIMIT];
270 // out_1d = new float[SBLIMIT * SSLIMIT];
271 // prevblck = new float[2][SBLIMIT * SSLIMIT];
272 // k = new float[2][SBLIMIT * SSLIMIT];
273 // nonzero = new int[2];
275 // // removes unnecessary aliases
276 // // III_scalefact_t
277 // // III_scalefac_t = new temporaire2[2];
278 // // III_scalefac_t[0] = new temporaire2();
279 // // III_scalefac_t[1] = new temporaire2();
280 // // scalefac = III_scalefac_t;
282 // scalefac = new temporaire2[2];
283 // scalefac[0] = new temporaire2();
284 // scalefac[1] = new temporaire2();
288 // sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
289 // @LOC("VAR") int[] l0 =
290 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
293 // @LOC("VAR") int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132,
295 // @LOC("VAR") int[] l1 =
296 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232,
299 // @LOC("VAR") int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136,
301 // @LOC("VAR") int[] l2 =
302 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
305 // @LOC("VAR") int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
308 // @LOC("VAR") int[] l3 =
309 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196,
312 // @LOC("VAR") int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136,
314 // @LOC("VAR") int[] l4 =
315 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190,
318 // @LOC("VAR") int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126,
320 // @LOC("VAR") int[] l5 =
321 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240,
324 // @LOC("VAR") int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138,
327 // @LOC("VAR") int[] l6 =
328 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
331 // @LOC("VAR") int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
333 // @LOC("VAR") int[] l7 =
334 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
337 // @LOC("VAR") int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
339 // @LOC("VAR") int[] l8 =
340 // { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400,
342 // 570, 572, 574, 576 };
343 // @LOC("VAR") int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164,
346 // sfBandIndex[0] = new SBI(l0, s0);
347 // sfBandIndex[1] = new SBI(l1, s1);
348 // sfBandIndex[2] = new SBI(l2, s2);
350 // sfBandIndex[3] = new SBI(l3, s3);
351 // sfBandIndex[4] = new SBI(l4, s4);
352 // sfBandIndex[5] = new SBI(l5, s5);
354 // sfBandIndex[6] = new SBI(l6, s6);
355 // sfBandIndex[7] = new SBI(l7, s7);
356 // sfBandIndex[8] = new SBI(l8, s8);
357 // // END OF L3TABLE INIT
359 // if (reorder_table == null) { // SZD: generate LUT
360 // reorder_table = new int[9][];
361 // for (@LOC("I") int i = 0; i < 9; i++)
362 // reorder_table[i] = reorder(sfBandIndex[i].s);
366 // @LOC("VAR") int[] ll0 = { 0, 6, 11, 16, 21 };
367 // @LOC("VAR") int[] ss0 = { 0, 6, 12 };
368 // sftable = new Sftable(ll0, ss0);
371 // // scalefac_buffer
372 // scalefac_buffer = new int[54];
373 // // END OF scalefac_buffer
375 // // header = header0;
376 // filter1 = filtera;
377 // filter2 = filterb;
378 // // buffer = buffer0;
379 // which_channels = which_ch0;
382 // channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
383 // max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
386 // header.sample_frequency()
387 // + ((header.version() == Header.MPEG1) ? 3 : (header.version() ==
388 // Header.MPEG25_LSF) ? 6
391 // if (channels == 2) {
392 // switch (which_channels) {
393 // case OutputChannels.LEFT_CHANNEL:
394 // case OutputChannels.DOWNMIX_CHANNELS:
395 // first_channel = last_channel = 0;
398 // case OutputChannels.RIGHT_CHANNEL:
399 // first_channel = last_channel = 1;
402 // case OutputChannels.BOTH_CHANNELS:
404 // first_channel = 0;
409 // first_channel = last_channel = 0;
412 // for (@LOC("CH") int ch = 0; ch < 2; ch++)
413 // for (@LOC("J") int j = 0; j < 576; j++)
414 // prevblck[ch][j] = 0.0f;
416 // nonzero[0] = nonzero[1] = 576;
418 // br = new BitReserve();
419 // si = new III_side_info_t();
423 * Notify decoder that a seek is being made.
425 @LATTICE("THIS<J,J<CH,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
426 public void seek_notify() {
428 for (@LOC("CH") int ch = 0; ch < 2; ch++)
429 for (@LOC("J") int j = 0; j < 576; j++)
430 prevblck[ch][j] = 0.0f;
431 br = new BitReserve();
434 public void decodeFrame(@LOC("IN") Header header) {
439 * Decode one frame, filling the buffer with the output samples.
442 // subband samples are buffered and passed to the
443 // SynthesisFilter in one go.
445 private float[] samples1 = new float[32];
447 private float[] samples2 = new float[32];
450 * location hierarchy of decode() {header} {stream} {si} {br, flush_main,
451 * main_data_end,frame_start,nSlots,bytes_to_discard}* {gr,max_gr} // granule
452 * {ch,channels,first_channel, last_channel, which_channels} // channel
453 * {part2_start} {sb18, ss} {out_1d}* {sb}* {samples1,sample2}
456 // @LATTICE("BYTE<THIS,THIS<MAIN,MAIN<VAR,THIS<GR,GR<VAR,BYTE*,GR*,THISLOC=THIS,GLOBALLOC=VAR")
457 @LATTICE("HEADER<VAR,VAR<THIS,C<THIS,THIS<IN,THISLOC=THIS,C*,VAR*")
458 public void decode(@LOC("THIS,LayerIIIDecoder.HD") Header header) {
460 // if (!initialized) {
464 // overwrites once per a loop
465 SSJAVA.arrayinit(samples1, 0);
466 SSJAVA.arrayinit(samples2, 0);
467 SSJAVA.arrayinit(ro, 2, SBLIMIT, SSLIMIT, 0);
468 SSJAVA.arrayinit(lr, 2, SBLIMIT, SSLIMIT, 0);
469 SSJAVA.arrayinit(is_pos, 7);
470 SSJAVA.arrayinit(is_ratio, 0);
471 SSJAVA.arrayinit(out_1d, 0);
472 SSJAVA.arrayinit(inter, 0);
473 SSJAVA.arrayinit(k, 2, SBLIMIT * SSLIMIT, 0);
474 SSJAVA.arrayinit(is_1d, 0);
476 // prevblck = new float[2][SBLIMIT * SSLIMIT];
477 si = new III_side_info_t();
480 @LOC("THIS,LayerIIIDecoder.HD1") int nSlots = header.slots();
482 @LOC("THIS,LayerIIIDecoder.CH0") int gr;
483 @LOC("THIS,LayerIIIDecoder.CH0") int ch;
485 @LOC("THIS,LayerIIIDecoder.CH0") int ss;
486 @LOC("THIS,LayerIIIDecoder.CH0") int sb;
487 @LOC("THIS,LayerIIIDecoder.CH0") int sb18;
489 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int main_data_end;
490 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int flush_main;
492 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int bytes_to_discard;
495 // modifications for linear type
496 get_side_info(header);
497 br = header.getBitReserve();
499 @LOC("THIS,LayerIIIDecoder.HD1") int version = header.version();
501 // here 'gr' and 'max_gr' should be higher than 'ch','channels', and more
502 for (gr = 0; gr < max_gr; gr++) { // two granules per channel
503 // in the loop body, access set={part2_start}
505 // 'ch', 'channels' should be higher than all locs in the below body
506 for (ch = 0; ch < channels; ch++) {
507 // part2_start = br.hsstell();
508 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int part2_start_local = br.hsstell();
510 // grab scale factors from the main data.
511 // following the scale factors is the actual compressed data
512 if (version == Header.MPEG1)
513 get_scale_factors(header, ch, gr); // no need to care from this side
514 // here move scale factor data from 'br' buffer to 'scalefac' field
516 // MPEG-2 LSF, SZD: MPEG-2.5 LSF
517 get_LSF_scale_factors(header, ch, gr); // no need to care from this
520 // here, decoding the compressed audio data
521 huffman_decode(part2_start_local, ch, gr); // no need to care from this
523 // System.out.println("CheckSum HuffMan = " + CheckSumHuff);
524 dequantize_sample(/* ro[ch], */ch, gr); // no need to care from this
528 stereo(header, gr); // no need to care from this side
530 if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) {
534 for (ch = first_channel; ch <= last_channel; ch++) { // 'ch' and
539 // read set= lr,ch,gr,out_1d, sb18, ss, SSLIMIT, out_1d
542 reorder(/* lr[ch], */ch, gr);
545 // float CheckSumOut1d=0;
546 // for (int hb = 0;hb<576;hb++) {
547 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
549 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
551 for (@LOC("THIS,LayerIIIDecoder.SI1") int index = 0; index < 576; index++) {
552 out_1d[index] = inter[index];
557 // float CheckSumOut1d=0;
558 // for (int hb = 0;hb<576;hb++) {
559 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
561 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
563 for (sb18 = 18; sb18 < 576; sb18 += 36) {
564 // sb18 > ss, SSLIMIT, out1d
565 // Frequency inversion
566 for (ss = 1; ss < SSLIMIT; ss += 2) {
567 // 'ss','SSLIMIT' > out_1d
568 out_1d[sb18 + ss] = -out_1d[sb18 + ss]; // out1d*
572 // 'ch', 'which_channels' should be higher than if/else body!
573 // location set written by if/else body
574 // = {samples1, samples2, filter1, filter2}
575 if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) {
576 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
578 for (sb18 = 0; sb18 < 576; sb18 += 18) {
579 samples1[sb] = out_1d[sb18 + ss]; // out_1d > samples1
580 // filter1.input_sample(out_1d[sb18+ss], sb);
581 sb++; // sb should be loc*
583 filter1.input_samples(samples1);
584 filter1.calculate_pcm_samples();
587 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
589 for (sb18 = 0; sb18 < 576; sb18 += 18) {
590 samples2[sb] = out_1d[sb18 + ss]; // out_1d > samples2
591 // filter2.input_sample(out_1d[sb18+ss], sb);
594 filter2.input_samples(samples2);
595 filter2.calculate_pcm_samples();
602 // System.out.println("Counter = ................................."+counter);
603 // if (counter < 609)
605 counter++; // count should be loc*
606 // buffer.write_buffer(1); // buffer!!!
608 // else if (counter == 609)
620 * Reads the side info from the stream, assuming the entire. frame has been
621 * read already. Mono : 136 bits (= 17 bytes) Stereo : 256 bits (= 32 bytes)
623 @LATTICE("OUT<THIS,THIS<C,C<IN,C*,THISLOC=THIS,RETURNLOC=OUT")
624 private boolean get_side_info(@LOC("THIS,LayerIIIDecoder.HD1") Header header) {
626 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.TEMP") SideInfoBuffer sib =
627 header.getSideInfoBuffer();
628 @LOC("THIS,LayerIIIDecoder.SF1") int version = header.version();
630 @LOC("THIS,LayerIIIDecoder.SI0") int ch;
631 @LOC("THIS,LayerIIIDecoder.SI0") int gr;
632 // System.out.println("#get_side_info");
633 if (version == Header.MPEG1) {
635 si.main_data_begin = sib.get_bits(9);
637 si.private_bits = sib.get_bits(5);
639 si.private_bits = sib.get_bits(3);
641 for (ch = 0; ch < channels; ch++) {
642 si.ch[ch].scfsi[0] = sib.get_bits(1);
643 si.ch[ch].scfsi[1] = sib.get_bits(1);
644 si.ch[ch].scfsi[2] = sib.get_bits(1);
645 si.ch[ch].scfsi[3] = sib.get_bits(1);
648 // System.out.println("BEFORE GR,CH");
650 for (gr = 0; gr < 2; gr++) {
651 // System.out.println("GR=" + gr);
652 for (ch = 0; ch < channels; ch++) {
653 // System.out.println("CH");
654 si.ch[ch].gr[gr].part2_3_length = sib.get_bits(12);
655 si.ch[ch].gr[gr].big_values = sib.get_bits(9);
656 si.ch[ch].gr[gr].global_gain = sib.get_bits(8);
657 si.ch[ch].gr[gr].scalefac_compress = sib.get_bits(4);
658 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.TEMP") int cond =
660 // si.ch[ch].gr[gr].window_switching_flag = sib.get_bits(1);
661 // if ((si.ch[ch].gr[gr].window_switching_flag) != 0) {
663 si.ch[ch].gr[gr].block_type = sib.get_bits(2);
664 si.ch[ch].gr[gr].mixed_block_flag = sib.get_bits(1);
666 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
667 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
669 si.ch[ch].gr[gr].subblock_gain[0] = sib.get_bits(3);
670 si.ch[ch].gr[gr].subblock_gain[1] = sib.get_bits(3);
671 si.ch[ch].gr[gr].subblock_gain[2] = sib.get_bits(3);
673 // Set region_count parameters since they are implicit
676 if (si.ch[ch].gr[gr].block_type == 0) {
677 // Side info bad: block_type == 0 in split block
679 } else if (si.ch[ch].gr[gr].block_type == 2 && si.ch[ch].gr[gr].mixed_block_flag == 0) {
680 si.ch[ch].gr[gr].region0_count = 8;
682 si.ch[ch].gr[gr].region0_count = 7;
684 si.ch[ch].gr[gr].region1_count = 20 - si.ch[ch].gr[gr].region0_count;
686 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
687 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
688 si.ch[ch].gr[gr].table_select[2] = sib.get_bits(5);
689 si.ch[ch].gr[gr].region0_count = sib.get_bits(4);
690 si.ch[ch].gr[gr].region1_count = sib.get_bits(3);
691 si.ch[ch].gr[gr].block_type = 0;
694 si.ch[ch].gr[gr].window_switching_flag = cond;
696 si.ch[ch].gr[gr].preflag = sib.get_bits(1);
697 si.ch[ch].gr[gr].scalefac_scale = sib.get_bits(1);
698 si.ch[ch].gr[gr].count1table_select = sib.get_bits(1);
702 } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF
704 si.main_data_begin = sib.get_bits(8);
706 si.private_bits = sib.get_bits(1);
708 si.private_bits = sib.get_bits(2);
710 for (ch = 0; ch < channels; ch++) {
712 si.ch[ch].gr[0].part2_3_length = sib.get_bits(12);
713 si.ch[ch].gr[0].big_values = sib.get_bits(9);
714 si.ch[ch].gr[0].global_gain = sib.get_bits(8);
715 si.ch[ch].gr[0].scalefac_compress = sib.get_bits(9);
717 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.TEMP") int cond =
719 // si.ch[ch].gr[0].window_switching_flag = sib.get_bits(1);
720 // if ((si.ch[ch].gr[0].window_switching_flag) != 0) {
723 si.ch[ch].gr[0].block_type = sib.get_bits(2);
724 si.ch[ch].gr[0].mixed_block_flag = sib.get_bits(1);
725 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
726 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
728 si.ch[ch].gr[0].subblock_gain[0] = sib.get_bits(3);
729 si.ch[ch].gr[0].subblock_gain[1] = sib.get_bits(3);
730 si.ch[ch].gr[0].subblock_gain[2] = sib.get_bits(3);
732 // Set region_count parameters since they are implicit in
735 if (si.ch[ch].gr[0].block_type == 0) {
736 // Side info bad: block_type == 0 in split block
738 } else if (si.ch[ch].gr[0].block_type == 2 && si.ch[ch].gr[0].mixed_block_flag == 0) {
739 si.ch[ch].gr[0].region0_count = 8;
741 si.ch[ch].gr[0].region0_count = 7;
742 si.ch[ch].gr[0].region1_count = 20 - si.ch[ch].gr[0].region0_count;
746 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
747 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
748 si.ch[ch].gr[0].table_select[2] = sib.get_bits(5);
749 si.ch[ch].gr[0].region0_count = sib.get_bits(4);
750 si.ch[ch].gr[0].region1_count = sib.get_bits(3);
751 si.ch[ch].gr[0].block_type = 0;
754 si.ch[ch].gr[gr].window_switching_flag = cond;
757 si.ch[ch].gr[0].scalefac_scale = sib.get_bits(1);
758 si.ch[ch].gr[0].count1table_select = sib.get_bits(1);
759 } // for(ch=0; ch<channels; ch++)
760 } // if (header.version() == MPEG1)
767 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
768 private void get_scale_factors(@LOC("THIS,LayerIIIDecoder.SF1") Header header,
769 @LOC("THIS,LayerIIIDecoder.SF1") int ch, @LOC("THIS,LayerIIIDecoder.SF1") int gr) {
771 // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias
773 @LOC("THIS,LayerIIIDecoder.NS") int sfb;
774 @LOC("THIS,LayerIIIDecoder.NS") int window;
775 @LOC("THIS,LayerIIIDecoder.NS") int scale_comp = si.ch[ch].gr[gr].scalefac_compress;
776 @LOC("THIS,LayerIIIDecoder.NS") int length0 = slen[0][scale_comp];
777 @LOC("THIS,LayerIIIDecoder.NS") int length1 = slen[1][scale_comp];
779 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
780 if ((si.ch[ch].gr[gr].mixed_block_flag) != 0) { // MIXED
781 for (sfb = 0; sfb < 8; sfb++)
782 scalefac[ch].l[sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
783 for (sfb = 3; sfb < 6; sfb++)
784 for (window = 0; window < 3; window++)
785 scalefac[ch].s[window][sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
786 for (sfb = 6; sfb < 12; sfb++)
787 for (window = 0; window < 3; window++)
788 scalefac[ch].s[window][sfb] = br.hgetbits(slen[1][si.ch[ch].gr[gr].scalefac_compress]);
789 for (sfb = 12, window = 0; window < 3; window++)
790 scalefac[ch].s[window][sfb] = 0;
794 scalefac[ch].s[0][0] = br.hgetbits(length0);
795 scalefac[ch].s[1][0] = br.hgetbits(length0);
796 scalefac[ch].s[2][0] = br.hgetbits(length0);
797 scalefac[ch].s[0][1] = br.hgetbits(length0);
798 scalefac[ch].s[1][1] = br.hgetbits(length0);
799 scalefac[ch].s[2][1] = br.hgetbits(length0);
800 scalefac[ch].s[0][2] = br.hgetbits(length0);
801 scalefac[ch].s[1][2] = br.hgetbits(length0);
802 scalefac[ch].s[2][2] = br.hgetbits(length0);
803 scalefac[ch].s[0][3] = br.hgetbits(length0);
804 scalefac[ch].s[1][3] = br.hgetbits(length0);
805 scalefac[ch].s[2][3] = br.hgetbits(length0);
806 scalefac[ch].s[0][4] = br.hgetbits(length0);
807 scalefac[ch].s[1][4] = br.hgetbits(length0);
808 scalefac[ch].s[2][4] = br.hgetbits(length0);
809 scalefac[ch].s[0][5] = br.hgetbits(length0);
810 scalefac[ch].s[1][5] = br.hgetbits(length0);
811 scalefac[ch].s[2][5] = br.hgetbits(length0);
812 scalefac[ch].s[0][6] = br.hgetbits(length1);
813 scalefac[ch].s[1][6] = br.hgetbits(length1);
814 scalefac[ch].s[2][6] = br.hgetbits(length1);
815 scalefac[ch].s[0][7] = br.hgetbits(length1);
816 scalefac[ch].s[1][7] = br.hgetbits(length1);
817 scalefac[ch].s[2][7] = br.hgetbits(length1);
818 scalefac[ch].s[0][8] = br.hgetbits(length1);
819 scalefac[ch].s[1][8] = br.hgetbits(length1);
820 scalefac[ch].s[2][8] = br.hgetbits(length1);
821 scalefac[ch].s[0][9] = br.hgetbits(length1);
822 scalefac[ch].s[1][9] = br.hgetbits(length1);
823 scalefac[ch].s[2][9] = br.hgetbits(length1);
824 scalefac[ch].s[0][10] = br.hgetbits(length1);
825 scalefac[ch].s[1][10] = br.hgetbits(length1);
826 scalefac[ch].s[2][10] = br.hgetbits(length1);
827 scalefac[ch].s[0][11] = br.hgetbits(length1);
828 scalefac[ch].s[1][11] = br.hgetbits(length1);
829 scalefac[ch].s[2][11] = br.hgetbits(length1);
830 scalefac[ch].s[0][12] = 0;
831 scalefac[ch].s[1][12] = 0;
832 scalefac[ch].s[2][12] = 0;
835 } else { // LONG types 0,1,3
837 if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) {
838 scalefac[ch].l[0] = br.hgetbits(length0);
839 scalefac[ch].l[1] = br.hgetbits(length0);
840 scalefac[ch].l[2] = br.hgetbits(length0);
841 scalefac[ch].l[3] = br.hgetbits(length0);
842 scalefac[ch].l[4] = br.hgetbits(length0);
843 scalefac[ch].l[5] = br.hgetbits(length0);
845 if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) {
846 scalefac[ch].l[6] = br.hgetbits(length0);
847 scalefac[ch].l[7] = br.hgetbits(length0);
848 scalefac[ch].l[8] = br.hgetbits(length0);
849 scalefac[ch].l[9] = br.hgetbits(length0);
850 scalefac[ch].l[10] = br.hgetbits(length0);
852 if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) {
853 scalefac[ch].l[11] = br.hgetbits(length1);
854 scalefac[ch].l[12] = br.hgetbits(length1);
855 scalefac[ch].l[13] = br.hgetbits(length1);
856 scalefac[ch].l[14] = br.hgetbits(length1);
857 scalefac[ch].l[15] = br.hgetbits(length1);
859 if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) {
860 scalefac[ch].l[16] = br.hgetbits(length1);
861 scalefac[ch].l[17] = br.hgetbits(length1);
862 scalefac[ch].l[18] = br.hgetbits(length1);
863 scalefac[ch].l[19] = br.hgetbits(length1);
864 scalefac[ch].l[20] = br.hgetbits(length1);
867 scalefac[ch].l[21] = 0;
868 scalefac[ch].l[22] = 0;
875 // MDM: new_slen is fully initialized before use, no need
876 // to reallocate array.
878 private final int[] new_slen = new int[4];
881 @LATTICE("M<THIS,THIS<IN,THIS<C,C*,M*,THISLOC=THIS,GLOBALLOC=THIS")
882 private void get_LSF_scale_data(@LOC("THIS,LayerIIIDecoder.SF15") Header header,
883 @LOC("THIS,LayerIIIDecoder.SF15") int ch, @LOC("THIS,LayerIIIDecoder.SF15") int gr) {
885 @LOC("THIS,LayerIIIDecoder.SI0") int mode_ext = header.mode_extension();
886 // @LOC("THIS,LayerIIIDecoder.GLSFD1") gr_info_s gr_info =
887 // (si.ch[ch].gr[gr]); // remove alias
889 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int scalefac_comp =
890 si.ch[ch].gr[gr].scalefac_compress;
891 @LOC("THIS,LayerIIIDecoder.NS") int blocktypenumber;
893 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int int_scalefac_comp;
894 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m;
895 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int blocknumber =
898 if (si.ch[ch].gr[gr].block_type == 2) {
899 if (si.ch[ch].gr[gr].mixed_block_flag == 0) {
901 } else if (si.ch[ch].gr[gr].mixed_block_flag == 1) {
910 if (!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
912 if (scalefac_comp < 400) {
914 new_slen[0] = (scalefac_comp >>> 4) / 5;
915 new_slen[1] = (scalefac_comp >>> 4) % 5;
916 new_slen[2] = (scalefac_comp & 0xF) >>> 2;
917 new_slen[3] = (scalefac_comp & 3);
918 si.ch[ch].gr[gr].preflag = 0;
921 } else if (scalefac_comp < 500) {
923 new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5;
924 new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5;
925 new_slen[2] = (scalefac_comp - 400) & 3;
927 si.ch[ch].gr[gr].preflag = 0;
930 } else if (scalefac_comp < 512) {
932 new_slen[0] = (scalefac_comp - 500) / 3;
933 new_slen[1] = (scalefac_comp - 500) % 3;
936 si.ch[ch].gr[gr].preflag = 1;
941 if ((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
942 int_scalefac_comp = scalefac_comp >>> 1;
944 if (int_scalefac_comp < 180) {
945 new_slen[0] = int_scalefac_comp / 36;
946 new_slen[1] = (int_scalefac_comp % 36) / 6;
947 new_slen[2] = (int_scalefac_comp % 36) % 6;
949 si.ch[ch].gr[gr].preflag = 0;
951 } else if (int_scalefac_comp < 244) {
952 new_slen[0] = ((int_scalefac_comp - 180) & 0x3F) >>> 4;
953 new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2;
954 new_slen[2] = (int_scalefac_comp - 180) & 3;
956 si.ch[ch].gr[gr].preflag = 0;
958 } else if (int_scalefac_comp < 255) {
959 new_slen[0] = (int_scalefac_comp - 244) / 3;
960 new_slen[1] = (int_scalefac_comp - 244) % 3;
963 si.ch[ch].gr[gr].preflag = 0;
968 for (@LOC("THIS,LayerIIIDecoder.NS") int x = 0; x < 45; x++)
970 scalefac_buffer[x] = 0;
973 for (@LOC("THIS,LayerIIIDecoder.NS") int i = 0; i < 4; i++) {
974 @LOC("THIS,LayerIIIDecoder.NS") int jmax = nr_of_sfb_block[blocknumber][blocktypenumber][i];
975 for (@LOC("THIS,LayerIIIDecoder.NS") int j = 0; j < jmax; j++) {
976 scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : br.hgetbits(new_slen[i]);
979 } // for (unint32 j ...
980 } // for (uint32 i ...
986 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
987 private void get_LSF_scale_factors(@LOC("THIS,LayerIIIDecoder.SF1") Header header,
988 @LOC("THIS,LayerIIIDecoder.SF1") int ch, @LOC("THIS,LayerIIIDecoder.SF1") int gr) {
990 @LOC("THIS,LayerIIIDecoder.SFB_SH") int sfb;
991 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m = 0;
992 @LOC("THIS,LayerIIIDecoder.SFB_SH") int window;
993 // gr_info_s gr_info = (si.ch[ch].gr[gr]); // remove alias
995 get_LSF_scale_data(header, ch, gr);
997 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
998 if (si.ch[ch].gr[gr].mixed_block_flag != 0) { // MIXED
999 for (sfb = 0; sfb < 8; sfb++) {
1000 scalefac[ch].l[sfb] = scalefac_buffer[m];
1003 for (sfb = 3; sfb < 12; sfb++) {
1004 for (window = 0; window < 3; window++) {
1005 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
1009 for (window = 0; window < 3; window++)
1010 scalefac[ch].s[window][12] = 0;
1014 for (sfb = 0; sfb < 12; sfb++) {
1015 for (window = 0; window < 3; window++) {
1016 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
1021 for (window = 0; window < 3; window++)
1022 scalefac[ch].s[window][12] = 0;
1024 } else { // LONG types 0,1,3
1026 for (sfb = 0; sfb < 21; sfb++) {
1027 scalefac[ch].l[sfb] = scalefac_buffer[m];
1030 scalefac[ch].l[21] = 0; // Jeff
1031 scalefac[ch].l[22] = 0;
1055 @LATTICE("VAR<OUT,OUT<THIS,THIS<RE,THISLOC=THIS,GLOBALLOC=OUT,RETURNLOC=OUT")
1056 private void huffman_decode(@LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int part2_start_local,
1057 @LOC("THIS,LayerIIIDecoder.CH0") int ch, @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1059 @LOC("RE") int x[] = new int[1];
1060 @LOC("RE") int y[] = new int[1];
1061 @LOC("RE") int v[] = new int[1];
1062 @LOC("RE") int w[] = new int[1];
1064 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int part2_3_end =
1065 part2_start_local + si.ch[ch].gr[gr].part2_3_length;
1066 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int num_bits;
1067 @LOC("THIS,LayerIIIDecoder.SI1") int region1Start;
1068 @LOC("THIS,LayerIIIDecoder.SI1") int region2Start;
1069 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int index;
1071 @LOC("THIS,LayerIIIDecoder.SI1") int buf;
1072 @LOC("THIS,LayerIIIDecoder.SI1") int buf1;
1074 // Find region boundary for short block case
1076 if (((si.ch[ch].gr[gr].window_switching_flag) != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1079 // MS: Extrahandling for 8KHZ
1080 region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case
1082 region2Start = 576; // No Region2 for short block case
1084 } else { // Find region boundary for long block case
1086 buf = si.ch[ch].gr[gr].region0_count + 1;
1087 buf1 = buf + si.ch[ch].gr[gr].region1_count + 1;
1089 if (buf1 > sfBandIndex[sfreq].l.length - 1)
1090 buf1 = sfBandIndex[sfreq].l.length - 1;
1092 region1Start = sfBandIndex[sfreq].l[buf];
1093 region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */
1097 // Read bigvalues area
1098 TERMINATE: for (@LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int i = 0; i < (si.ch[ch].gr[gr].big_values << 1); i +=
1101 @LOC("THIS,LayerIIIDecoder.SI2") int htIdx;
1102 if (i < region1Start) {
1103 htIdx = si.ch[ch].gr[gr].table_select[0];
1104 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]];
1105 } else if (i < region2Start) {
1106 htIdx = si.ch[ch].gr[gr].table_select[1];
1107 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]];
1109 htIdx = si.ch[ch].gr[gr].table_select[2];
1110 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]];
1113 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1114 // if (index >= is_1d.length)
1115 // System.out.println("i0="+i+"/"+(si.ch[ch].gr[gr].big_values<<1)+" Index="+index+" is_1d="+is_1d.length);
1117 is_1d[index++] = x[0];
1118 is_1d[index++] = y[0];
1120 CheckSumHuff = CheckSumHuff + x[0] + y[0];
1121 // System.out.println("x = " + x[0] + " y = " + y[0]);
1126 @LOC("THIS,LayerIIIDecoder.SI2") int htIdx = si.ch[ch].gr[gr].count1table_select + 32;
1127 // h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select + 32];
1128 num_bits = br.hsstell();
1130 TERMINATE: while ((num_bits < part2_3_end) && (index < 576)) {
1132 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1134 is_1d[index++] = v[0];
1135 is_1d[index++] = w[0];
1136 is_1d[index++] = x[0];
1137 is_1d[index++] = y[0];
1138 CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0];
1139 // System.out.println("v = "+v[0]+" w = "+w[0]);
1140 // System.out.println("x = "+x[0]+" y = "+y[0]);
1141 num_bits = br.hsstell();
1144 if (num_bits > part2_3_end) {
1145 br.rewindNbits(num_bits - part2_3_end);
1149 num_bits = br.hsstell();
1151 // Dismiss stuffing bits
1152 if (num_bits < part2_3_end)
1153 br.hgetbits(part2_3_end - num_bits);
1158 nonzero[ch] = index;
1165 // may not be necessary
1166 for (; index < 576; index++)
1170 @LATTICE("THIS,IN,THISLOC=THIS,RETURNLOC=THIS")
1171 private int huffcodetab_huffman_decoder(@LOC("IN") int h) {
1172 // TODO need to move huffmancodetab implementation here
1179 private void i_stereo_k_values(@LOC("THIS,LayerIIIDecoder.LR") int is_pos,
1180 @LOC("THIS,LayerIIIDecoder.LR") int io_type, @LOC("THIS,LayerIIIDecoder.LR") int i) {
1184 } else if ((is_pos & 1) != 0) {
1185 k[0][i] = io[io_type][(is_pos + 1) >>> 1];
1189 k[1][i] = io[io_type][is_pos >>> 1];
1196 // @LATTICE("OUT<QUO,QUO<REST,REST<IDX,IDX<VAR,VAR<CB,CB<J,CB<GR,GR<IN,J<IN,QUO*,REST*,IDX*,CB*,J*,THISLOC=IN,GLOBALLOC=IN")
1197 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
1199 private void dequantize_sample(
1200 /* @LOC("OUT") float xr[][], */@LOC("THIS,LayerIIIDecoder.SI") int ch,
1201 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1203 // @LOC("GR") gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias!
1204 @LOC("THIS,LayerIIIDecoder.SI1") int cb = 0;
1206 @LOC("THIS,LayerIIIDecoder.SI1") int next_cb_boundary;
1207 @LOC("THIS,LayerIIIDecoder.SI1") int cb_begin = 0;
1208 @LOC("THIS,LayerIIIDecoder.SI1") int cb_width = 0;
1209 @LOC("THIS,LayerIIIDecoder.SI1") float g_gain;
1211 @LOC("THIS,LayerIIIDecoder.SI1") int index = 0;
1212 @LOC("THIS,LayerIIIDecoder.SI1") int t_index;
1213 @LOC("THIS,LayerIIIDecoder.NZ") int j;
1215 // float[][] xr_1d = xr;//substituted xr for instances of xr_1d to decrease
1218 // choose correct scalefactor band per block type, initalize boundary
1220 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1221 if (si.ch[ch].gr[gr].mixed_block_flag != 0)
1222 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1224 cb_width = sfBandIndex[sfreq].s[1];
1225 next_cb_boundary = (cb_width << 2) - cb_width;
1229 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1232 // Compute overall (global) scaling.
1234 g_gain = (float) Math.pow(2.0, (0.25 * (si.ch[ch].gr[gr].global_gain - 210.0)));
1236 for (j = 0; j < nonzero[ch]; j++) {
1237 // Modif E.B 02/22/99
1238 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1239 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1240 if (is_1d[j] == 0) {
1241 ro[ch][quotien][reste] = 0.0f;
1243 @LOC("THIS,LayerIIIDecoder.IS1D") int abv = is_1d[j];
1244 // Pow Array fix (11/17/04)
1245 if (abv < t_43.length) {
1247 ro[ch][quotien][reste] = g_gain * t_43[abv];
1249 if (-abv < t_43.length)
1250 ro[ch][quotien][reste] = -g_gain * t_43[-abv];
1252 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1256 ro[ch][quotien][reste] = g_gain * (float) Math.pow(abv, d43);
1258 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1263 // apply formula per block type
1264 for (j = 0; j < nonzero[ch]; j++) {
1265 // Modif E.B 02/22/99
1266 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1267 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1269 if (index == next_cb_boundary) { /* Adjust critical band boundary */
1270 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1271 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1273 if (index == sfBandIndex[sfreq].l[8]) {
1274 next_cb_boundary = sfBandIndex[sfreq].s[4];
1275 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1277 cb_width = sfBandIndex[sfreq].s[4] - sfBandIndex[sfreq].s[3];
1279 cb_begin = sfBandIndex[sfreq].s[3];
1280 cb_begin = (cb_begin << 2) - cb_begin;
1282 } else if (index < sfBandIndex[sfreq].l[8]) {
1284 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1288 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1289 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1291 cb_begin = sfBandIndex[sfreq].s[cb];
1292 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1293 cb_begin = (cb_begin << 2) - cb_begin;
1298 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1299 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1301 cb_begin = sfBandIndex[sfreq].s[cb];
1302 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1303 cb_begin = (cb_begin << 2) - cb_begin;
1306 } else { // long blocks
1308 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1313 // Do long/short dependent scaling operations
1315 if ((si.ch[ch].gr[gr].window_switching_flag != 0)
1316 && (((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)
1317 && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (j >= 36)))) {
1319 t_index = (index - cb_begin) / cb_width;
1321 * xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) -(0.5
1322 * * (1.0 + gr_info.scalefac_scale) scalefac[ch].s[t_index][cb])));
1324 @LOC("THIS,LayerIIIDecoder.SI1") int idx =
1325 scalefac[ch].s[t_index][cb] << si.ch[ch].gr[gr].scalefac_scale;
1326 idx += (si.ch[ch].gr[gr].subblock_gain[t_index] << 2);
1328 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1330 } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks
1332 * xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale)
1333 * (scalefac[ch].l[cb] + gr_info.preflag * pretab[cb]));
1335 @LOC("THIS,LayerIIIDecoder.SI1") int idx = scalefac[ch].l[cb];
1337 if (si.ch[ch].gr[gr].preflag != 0)
1340 idx = idx << si.ch[ch].gr[gr].scalefac_scale;
1341 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1346 for (j = nonzero[ch]; j < 576; j++) {
1347 // Modif E.B 02/22/99
1348 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1349 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1354 ro[ch][quotien][reste] = 0.0f;
1364 // @LATTICE("THIS<I,I<GR,GR<IN,I*,THISLOC=THIS,GLOBALLOC=IN")
1365 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
1366 private void reorder(/* @LOC("IN") float xr[][], */@LOC("THIS,LayerIIIDecoder.CH0") int ch,
1367 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1368 // the purpose of reordering: move 'short samples' back to their original
1370 // after reorder, the samples are no long ordered by frequency
1372 // the format of input data to reorder:
1373 // three small chunks of 192 samples each are combined to 576 samples
1374 // ordered by frequency
1376 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1378 @LOC("THIS,LayerIIIDecoder.SI1") int index;
1380 @LOC("THIS,LayerIIIDecoder.SI1") int freq;
1381 @LOC("THIS,LayerIIIDecoder.SI1") int freq3;
1382 @LOC("THIS,LayerIIIDecoder.SI1") int sfb;
1383 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start;
1384 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_lines;
1385 @LOC("THIS,LayerIIIDecoder.SI1") int src_line;
1386 @LOC("THIS,LayerIIIDecoder.SI1") int des_line;
1387 // float[][] xr_1d = xr; subbed in xr for xr_1d so as not to create extra
1390 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1392 // for (index = 0; index < 576; index++) {
1393 // inter[index] = 0.0f;
1396 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1397 // NO REORDER FOR LOW 2 SUBBANDS
1398 for (index = 0; index < 36; index++) {
1399 // Modif E.B 02/22/99
1400 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1401 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1402 inter[index] = lr[ch][quotien][reste];
1404 // REORDERING FOR REST SWITCHED SHORT
1406 * for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3],
1407 * sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; sfb < 13;
1408 * sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], sfb_lines =
1409 * sfBandIndex[sfreq].s[sfb+1] - sfb_start ) {
1411 for (sfb = 3; sfb < 13; sfb++) {
1412 // System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length);
1413 sfb_start = sfBandIndex[sfreq].s[sfb];
1414 sfb_lines = sfBandIndex[sfreq].s[sfb + 1] - sfb_start;
1416 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start3 = (sfb_start << 2) - sfb_start;
1418 for (freq = 0, freq3 = 0; freq < sfb_lines; freq++, freq3 += 3) {
1420 src_line = sfb_start3 + freq;
1421 des_line = sfb_start3 + freq3;
1422 // Modif E.B 02/22/99
1423 @LOC("THIS,LayerIIIDecoder.SI1") int reste = src_line % SSLIMIT;
1424 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((src_line - reste) / SSLIMIT);
1426 inter[des_line] = lr[ch][quotien][reste];
1427 src_line += sfb_lines;
1430 reste = src_line % SSLIMIT;
1431 quotien = (int) ((src_line - reste) / SSLIMIT);
1433 inter[des_line] = lr[ch][quotien][reste];
1434 src_line += sfb_lines;
1437 reste = src_line % SSLIMIT;
1438 quotien = (int) ((src_line - reste) / SSLIMIT);
1440 inter[des_line] = lr[ch][quotien][reste];
1444 } else { // pure short
1445 for (index = 0; index < 576; index++) {
1446 @LOC("THIS,LayerIIIDecoder.SI1") int j = reorder_table[sfreq][index];
1447 @LOC("THIS,LayerIIIDecoder.SI1") int reste = j % SSLIMIT;
1448 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((j - reste) / SSLIMIT);
1449 inter[index] = lr[ch][quotien][reste];
1452 } else { // long blocks
1453 for (index = 0; index < 576; index++) {
1454 // Modif E.B 02/22/99
1455 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1456 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1457 inter[index] = lr[ch][quotien][reste];
1467 int[] is_pos = new int[576];
1469 float[] is_ratio = new float[576];
1472 @LATTICE("IO<THIS,THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
1473 private void stereo(@LOC("THIS,LayerIIIDecoder.HD1") Header header,
1474 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1475 @LOC("THIS,LayerIIIDecoder.RO1") int sb;
1476 @LOC("THIS,LayerIIIDecoder.RO1") int ss;
1478 if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][]
1480 for (sb = 0; sb < SBLIMIT; sb++)
1481 for (ss = 0; ss < SSLIMIT; ss += 3) {
1482 lr[0][sb][ss] = ro[0][sb][ss];
1483 lr[0][sb][ss + 1] = ro[0][sb][ss + 1];
1484 lr[0][sb][ss + 2] = ro[0][sb][ss + 2];
1489 // gr_info_s gr_info = (si.ch[0].gr[gr]); remove alias
1490 @LOC("THIS,LayerIIIDecoder.SF1") int mode_ext = header.mode_extension();
1492 @LOC("THIS,LayerIIIDecoder.RO1") int sfb;
1493 @LOC("THIS,LayerIIIDecoder.RO1") int i;
1494 @LOC("THIS,LayerIIIDecoder.RO1") int lines;
1495 @LOC("THIS,LayerIIIDecoder.RO1") int temp;
1496 @LOC("THIS,LayerIIIDecoder.RO1") int temp2;
1498 @LOC("THIS,LayerIIIDecoder.SF15") boolean ms_stereo =
1499 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2) != 0));
1500 @LOC("THIS,LayerIIIDecoder.SF15") boolean i_stereo =
1501 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1) != 0));
1502 @LOC("THIS,LayerIIIDecoder.SF15") boolean lsf =
1503 ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF)); // SZD
1505 @LOC("THIS,LayerIIIDecoder.LR") int io_type = (si.ch[0].gr[gr].scalefac_compress & 1);
1508 // for (i = 0; i < 576; i++) {
1510 // is_ratio[i] = 0.0f;
1514 if ((si.ch[0].gr[gr].window_switching_flag != 0) && (si.ch[0].gr[gr].block_type == 2)) {
1515 if (si.ch[0].gr[gr].mixed_block_flag != 0) {
1517 @LOC("THIS,LayerIIIDecoder.RO1") int max_sfb = 0;
1519 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1520 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1522 TERMINATE: for (sfb = 12; sfb >= 3; sfb--) {
1523 i = sfBandIndex[sfreq].s[sfb];
1524 lines = sfBandIndex[sfreq].s[sfb + 1] - i;
1525 i = (i << 2) - i + (j + 1) * lines - 1;
1526 TERMINATE: while (lines > 0) {
1527 if (ro[1][i / 18][i % 18] != 0.0f) {
1528 // MDM: in java, array access is very slow.
1529 // Is quicker to compute div and mod values.
1530 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1539 } // while (lines > 0)
1541 } // for (sfb=12 ...
1548 temp = sfBandIndex[sfreq].s[sfb];
1549 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1550 i = (temp << 2) - temp + j * sb;
1552 TERMINATE: for (; sb > 0; sb--) {
1553 is_pos[i] = scalefac[1].s[j][sfb];
1556 i_stereo_k_values(is_pos[i], io_type, i);
1558 is_ratio[i] = TAN12[is_pos[i]];
1563 } // while (sfb < 12)
1564 sfb = sfBandIndex[sfreq].s[10];
1565 sb = sfBandIndex[sfreq].s[11] - sfb;
1566 sfb = (sfb << 2) - sfb + j * sb;
1567 temp = sfBandIndex[sfreq].s[11];
1568 sb = sfBandIndex[sfreq].s[12] - temp;
1569 i = (temp << 2) - temp + j * sb;
1570 TERMINATE: for (; sb > 0; sb--) {
1571 is_pos[i] = is_pos[sfb];
1574 k[0][i] = k[0][sfb];
1575 k[1][i] = k[1][sfb];
1577 is_ratio[i] = is_ratio[sfb];
1580 } // for (; sb > 0 ...
1586 TERMINATE: while (i >= 0) {
1587 if (ro[1][i][ss] != 0.0f) {
1588 sb = (i << 4) + (i << 1) + ss;
1599 while (sfBandIndex[sfreq].l[i] <= sb)
1602 i = sfBandIndex[sfreq].l[i];
1603 for (; sfb < 8; sfb++) {
1604 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1605 TERMINATE: for (; sb > 0; sb--) {
1606 is_pos[i] = scalefac[1].l[sfb];
1609 i_stereo_k_values(is_pos[i], io_type, i);
1611 is_ratio[i] = TAN12[is_pos[i]];
1613 } // for (; sb>0 ...
1614 } // for (; sfb<8 ...
1616 } else { // if (gr_info.mixed_block_flag)
1617 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1618 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1620 TERMINATE: for (sfb = 12; sfb >= 0; sfb--) {
1621 temp = sfBandIndex[sfreq].s[sfb];
1622 lines = sfBandIndex[sfreq].s[sfb + 1] - temp;
1623 i = (temp << 2) - temp + (j + 1) * lines - 1;
1624 TERMINATE: while (lines > 0) {
1625 if (ro[1][i / 18][i % 18] != 0.0f) {
1626 // MDM: in java, array access is very slow.
1627 // Is quicker to compute div and mod values.
1628 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1635 } // while (lines > 0) */
1637 } // for (sfb=12 ...
1640 temp = sfBandIndex[sfreq].s[sfb];
1641 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1642 i = (temp << 2) - temp + j * sb;
1643 TERMINATE: for (; sb > 0; sb--) {
1644 is_pos[i] = scalefac[1].s[j][sfb];
1647 i_stereo_k_values(is_pos[i], io_type, i);
1649 is_ratio[i] = TAN12[is_pos[i]];
1651 } // for (; sb>0 ...
1655 temp = sfBandIndex[sfreq].s[10];
1656 temp2 = sfBandIndex[sfreq].s[11];
1658 sfb = (temp << 2) - temp + j * sb;
1659 sb = sfBandIndex[sfreq].s[12] - temp2;
1660 i = (temp2 << 2) - temp2 + j * sb;
1661 TERMINATE: for (; sb > 0; sb--) {
1662 is_pos[i] = is_pos[sfb];
1665 k[0][i] = k[0][sfb];
1666 k[1][i] = k[1][sfb];
1668 is_ratio[i] = is_ratio[sfb];
1671 } // for (; sb>0 ...
1674 } else { // if (gr_info.window_switching_flag ...
1678 TERMINATE: while (i >= 0) {
1679 if (ro[1][i][ss] != 0.0f) {
1680 sb = (i << 4) + (i << 1) + ss;
1691 while (sfBandIndex[sfreq].l[i] <= sb)
1695 i = sfBandIndex[sfreq].l[i];
1696 for (; sfb < 21; sfb++) {
1697 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1698 TERMINATE: for (; sb > 0; sb--) {
1699 is_pos[i] = scalefac[1].l[sfb];
1702 i_stereo_k_values(is_pos[i], io_type, i);
1704 is_ratio[i] = TAN12[is_pos[i]];
1708 sfb = sfBandIndex[sfreq].l[20];
1709 TERMINATE: for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i < 576); sb--) {
1710 is_pos[i] = is_pos[sfb]; // error here : i >=576
1713 k[0][i] = k[0][sfb];
1714 k[1][i] = k[1][sfb];
1716 is_ratio[i] = is_ratio[sfb];
1719 } // if (gr_info.mixed_block_flag)
1720 } // if (gr_info.window_switching_flag ...
1724 for (sb = 0; sb < SBLIMIT; sb++)
1725 for (ss = 0; ss < SSLIMIT; ss++) {
1726 if (is_pos[i] == 7) {
1728 lr[0][sb][ss] = (ro[0][sb][ss] + ro[1][sb][ss]) * 0.707106781f;
1729 lr[1][sb][ss] = (ro[0][sb][ss] - ro[1][sb][ss]) * 0.707106781f;
1731 lr[0][sb][ss] = ro[0][sb][ss];
1732 lr[1][sb][ss] = ro[1][sb][ss];
1734 } else if (i_stereo) {
1737 lr[0][sb][ss] = ro[0][sb][ss] * k[0][i];
1738 lr[1][sb][ss] = ro[0][sb][ss] * k[1][i];
1740 lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]);
1741 lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i];
1745 * else { System.out.println("Error in stereo processing\n"); }
1757 // @LATTICE("THIS<SRC,SRC<SS,SS<SB18,SB18<SB18LIM,SB18LIM<GR,GR<IN,SB18*,SS*,THISLOC=THIS")
1758 @LATTICE("VAR<THIS,THIS<C,C<IN,THISLOC=THIS,C*")
1759 private void antialias(@LOC("THIS,LayerIIIDecoder.SI") int ch,
1760 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1762 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18;
1763 @LOC("THIS,LayerIIIDecoder.SI1") int ss;
1764 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18lim;
1766 // @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR1")
1767 // gr_info_s gr_info =
1768 // (si.ch[ch].gr[gr]);
1769 // 31 alias-reduction operations between each pair of sub-bands
1770 // with 8 butterflies between each pair
1772 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)
1773 && !(si.ch[ch].gr[gr].mixed_block_flag != 0))
1776 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0)
1777 && (si.ch[ch].gr[gr].block_type == 2)) {
1783 for (sb18 = 0; sb18 < sb18lim; sb18 += 18) {
1784 for (ss = 0; ss < 8; ss++) {
1785 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx1 = sb18 + 17 - ss;
1786 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx2 = sb18 + 18 + ss;
1787 @LOC("THIS,LayerIIIDecoder.OUT") float bu = inter[src_idx1];
1788 @LOC("THIS,LayerIIIDecoder.OUT") float bd = inter[src_idx2];
1789 inter[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]);
1790 inter[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]);
1799 // MDM: tsOutCopy and rawout do not need initializing, so the arrays
1802 float[] tsOutCopy = new float[18];
1804 float[] rawout = new float[36];
1806 @LATTICE("THIS<SB,SB*,THISLOC=THIS")
1807 private void hybrid(@LOC("THIS,LayerIIIDecoder.SI") int ch, @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1809 @LOC("THIS,LayerIIIDecoder.SI1") int bt;
1810 @LOC("THIS,LayerIIIDecoder.SI1") int sb18;
1811 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1812 // @LOC("THIS,LayerIIIDecoder.TS") float[] tsOut; //remove alias
1814 // float[][] prvblk;
1816 for (sb18 = 0; sb18 < 576; sb18 += 18) {
1817 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0)
1821 bt = si.ch[ch].gr[gr].block_type;
1825 // Modif E.B 02/22/99
1826 for (@LOC("THIS,LayerIIIDecoder.SI1") int cc = 0; cc < 18; cc++)
1827 tsOutCopy[cc] = out_1d[cc + sb18];
1831 for (@LOC("THIS,LayerIIIDecoder.SI1") int cc = 0; cc < 18; cc++)
1832 out_1d[cc + sb18] = tsOutCopy[cc];
1836 out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
1837 prevblck[ch][sb18 + 0] = rawout[18];
1838 out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
1839 prevblck[ch][sb18 + 1] = rawout[19];
1840 out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
1841 prevblck[ch][sb18 + 2] = rawout[20];
1842 out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
1843 prevblck[ch][sb18 + 3] = rawout[21];
1844 out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
1845 prevblck[ch][sb18 + 4] = rawout[22];
1846 out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
1847 prevblck[ch][sb18 + 5] = rawout[23];
1848 out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
1849 prevblck[ch][sb18 + 6] = rawout[24];
1850 out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
1851 prevblck[ch][sb18 + 7] = rawout[25];
1852 out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
1853 prevblck[ch][sb18 + 8] = rawout[26];
1854 out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
1855 prevblck[ch][sb18 + 9] = rawout[27];
1856 out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
1857 prevblck[ch][sb18 + 10] = rawout[28];
1858 out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
1859 prevblck[ch][sb18 + 11] = rawout[29];
1860 out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
1861 prevblck[ch][sb18 + 12] = rawout[30];
1862 out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
1863 prevblck[ch][sb18 + 13] = rawout[31];
1864 out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
1865 prevblck[ch][sb18 + 14] = rawout[32];
1866 out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
1867 prevblck[ch][sb18 + 15] = rawout[33];
1868 out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
1869 prevblck[ch][sb18 + 16] = rawout[34];
1870 out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
1871 prevblck[ch][sb18 + 17] = rawout[35];
1878 private void do_downmix() {
1879 for (@LOC("THIS,LayerIIIDecoder.ISR") int sb = 0; sb < SSLIMIT; sb++) {
1880 for (@LOC("THIS,LayerIIIDecoder.ISR") int ss = 0; ss < SSLIMIT; ss += 3) {
1881 lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f;
1882 lr[0][sb][ss + 1] = (lr[0][sb][ss + 1] + lr[1][sb][ss + 1]) * 0.5f;
1883 lr[0][sb][ss + 2] = (lr[0][sb][ss + 2] + lr[1][sb][ss + 2]) * 0.5f;
1891 // @LATTICE("OUT<6I,OUT<TMPF,TMPF<EO,EO<TMP,TMP<SUM,TMP<IIP,IIP<I00,I00<SH,SUM<PP,PP<SH,SH<I,I<IN,TMPF*,SH*,I*,6I*,GLOBALLOC=IN,THISLOC=IN")
1892 // public void inv_mdct(@LOC("SH") float[] in, @LOC("OUT") float[] out,
1893 // @LOC("IN") int block_type) {//remove alias
1895 @LATTICE("THIS,THISLOC=THIS")
1896 public void inv_mdct(@LOC("THIS,LayerIIIDecoder.OUT") int block_type) {
1898 @LOC("THIS,LayerIIIDecoder.OUT") int i;
1900 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_0;
1901 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_1;
1902 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_2;
1903 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_3;
1904 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_4;
1905 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_5;
1906 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_6;
1907 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_7;
1908 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_8;
1909 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_9;
1910 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_10;
1911 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_11;
1912 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_12;
1913 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_13;
1914 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_14;
1915 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_15;
1916 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_16;
1917 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_17;
1934 tmpf_15 = tmpf_16 = tmpf_17 = 0.0f;
1936 if (block_type == 2) {
1940 * Under MicrosoftVM 2922, This causes a GPF, or At best, an
1941 * ArrayIndexOutOfBoundsExceptin. for(int p=0;p<36;p+=9) { out[p] =
1942 * out[p+1] = out[p+2] = out[p+3] = out[p+4] = out[p+5] = out[p+6] =
1943 * out[p+7] = out[p+8] = 0.0f; }
1982 @LOC("THIS,LayerIIIDecoder.OUT") int six_i = 0;
1984 for (i = 0; i < 3; i++) {
1986 // Begin 12 point IDCT
1987 // Input aliasing for 12 pt IDCT
1988 tsOutCopy[15 + i] += tsOutCopy[12 + i];
1989 tsOutCopy[12 + i] += tsOutCopy[9 + i];
1990 tsOutCopy[9 + i] += tsOutCopy[6 + i];
1991 tsOutCopy[6 + i] += tsOutCopy[3 + i];
1992 tsOutCopy[3 + i] += tsOutCopy[0 + i];
1994 // Input aliasing on odd indices (for 6 point IDCT)
1995 tsOutCopy[15 + i] += tsOutCopy[9 + i];
1996 tsOutCopy[9 + i] += tsOutCopy[3 + i];
1998 // 3 point IDCT on even indices
1999 @LOC("THIS,LayerIIIDecoder.OUT") float pp1;
2000 @LOC("THIS,LayerIIIDecoder.OUT") float pp2;
2001 @LOC("THIS,LayerIIIDecoder.OUT") float sum;
2002 pp2 = tsOutCopy[12 + i] * 0.500000000f;
2003 pp1 = tsOutCopy[6 + i] * 0.866025403f;
2004 sum = tsOutCopy[0 + i] + pp2;
2005 tmpf_1 = tsOutCopy[0 + i] - tsOutCopy[12 + i];
2009 // End 3 point IDCT on even indices
2010 // 3 point IDCT on odd indices (for 6 point IDCT)
2011 pp2 = tsOutCopy[15 + i] * 0.500000000f;
2012 pp1 = tsOutCopy[9 + i] * 0.866025403f;
2013 sum = tsOutCopy[3 + i] + pp2;
2014 tmpf_4 = tsOutCopy[3 + i] - tsOutCopy[15 + i];
2017 // End 3 point IDCT on odd indices
2018 // Twiddle factors on odd indices (for 6 point IDCT)
2020 tmpf_3 *= 1.931851653f;
2021 tmpf_4 *= 0.707106781f;
2022 tmpf_5 *= 0.517638090f;
2024 // Output butterflies on 2 3 point IDCT's (for 6 point IDCT)
2025 @LOC("THIS,LayerIIIDecoder.OUT") float save = tmpf_0;
2027 tmpf_5 = save - tmpf_5;
2030 tmpf_4 = save - tmpf_4;
2033 tmpf_3 = save - tmpf_3;
2036 // Twiddle factors on indices (for 12 point IDCT)
2038 tmpf_0 *= 0.504314480f;
2039 tmpf_1 *= 0.541196100f;
2040 tmpf_2 *= 0.630236207f;
2041 tmpf_3 *= 0.821339815f;
2042 tmpf_4 *= 1.306562965f;
2043 tmpf_5 *= 3.830648788f;
2045 // End 12 point IDCT
2047 // Shift to 12 point modified IDCT, multiply by window type 2
2048 tmpf_8 = -tmpf_0 * 0.793353340f;
2049 tmpf_9 = -tmpf_0 * 0.608761429f;
2050 tmpf_7 = -tmpf_1 * 0.923879532f;
2051 tmpf_10 = -tmpf_1 * 0.382683432f;
2052 tmpf_6 = -tmpf_2 * 0.991444861f;
2053 tmpf_11 = -tmpf_2 * 0.130526192f;
2056 tmpf_1 = tmpf_4 * 0.382683432f;
2057 tmpf_2 = tmpf_5 * 0.608761429f;
2059 tmpf_3 = -tmpf_5 * 0.793353340f;
2060 tmpf_4 = -tmpf_4 * 0.923879532f;
2061 tmpf_5 = -tmpf_0 * 0.991444861f;
2063 tmpf_0 *= 0.130526192f;
2065 rawout[six_i + 6] += tmpf_0;
2066 rawout[six_i + 7] += tmpf_1;
2067 rawout[six_i + 8] += tmpf_2;
2068 rawout[six_i + 9] += tmpf_3;
2069 rawout[six_i + 10] += tmpf_4;
2070 rawout[six_i + 11] += tmpf_5;
2071 rawout[six_i + 12] += tmpf_6;
2072 rawout[six_i + 13] += tmpf_7;
2073 rawout[six_i + 14] += tmpf_8;
2074 rawout[six_i + 15] += tmpf_9;
2075 rawout[six_i + 16] += tmpf_10;
2076 rawout[six_i + 17] += tmpf_11;
2082 // input aliasing for 36 point IDCT
2083 tsOutCopy[17] += tsOutCopy[16];
2084 tsOutCopy[16] += tsOutCopy[15];
2085 tsOutCopy[15] += tsOutCopy[14];
2086 tsOutCopy[14] += tsOutCopy[13];
2087 tsOutCopy[13] += tsOutCopy[12];
2088 tsOutCopy[12] += tsOutCopy[11];
2089 tsOutCopy[11] += tsOutCopy[10];
2090 tsOutCopy[10] += tsOutCopy[9];
2091 tsOutCopy[9] += tsOutCopy[8];
2092 tsOutCopy[8] += tsOutCopy[7];
2093 tsOutCopy[7] += tsOutCopy[6];
2094 tsOutCopy[6] += tsOutCopy[5];
2095 tsOutCopy[5] += tsOutCopy[4];
2096 tsOutCopy[4] += tsOutCopy[3];
2097 tsOutCopy[3] += tsOutCopy[2];
2098 tsOutCopy[2] += tsOutCopy[1];
2099 tsOutCopy[1] += tsOutCopy[0];
2101 // 18 point IDCT for odd indices
2102 // input aliasing for 18 point IDCT
2103 tsOutCopy[17] += tsOutCopy[15];
2104 tsOutCopy[15] += tsOutCopy[13];
2105 tsOutCopy[13] += tsOutCopy[11];
2106 tsOutCopy[11] += tsOutCopy[9];
2107 tsOutCopy[9] += tsOutCopy[7];
2108 tsOutCopy[7] += tsOutCopy[5];
2109 tsOutCopy[5] += tsOutCopy[3];
2110 tsOutCopy[3] += tsOutCopy[1];
2112 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0;
2113 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1;
2114 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2;
2115 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3;
2116 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4;
2117 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_;
2118 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_;
2119 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_;
2120 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_;
2121 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0o;
2122 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1o;
2123 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2o;
2124 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3o;
2125 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4o;
2126 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_o;
2127 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_o;
2128 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_o;
2129 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_o;
2131 // Fast 9 Point Inverse Discrete Cosine Transform
2133 // By Francois-Raymond Boyer
2134 // mailto:boyerf@iro.umontreal.ca
2135 // http://www.iro.umontreal.ca/~boyerf
2137 // The code has been optimized for Intel processors
2138 // (takes a lot of time to convert float to and from iternal FPU
2141 // It is a simple "factorization" of the IDCT matrix.
2143 // 9 point IDCT on even indices
2145 // 5 points on odd indices (not realy an IDCT)
2146 @LOC("THIS,LayerIIIDecoder.OUT") float i00 = tsOutCopy[0] + tsOutCopy[0];
2147 @LOC("THIS,LayerIIIDecoder.OUT") float iip12 = i00 + tsOutCopy[12];
2150 iip12 + tsOutCopy[4] * 1.8793852415718f + tsOutCopy[8] * 1.532088886238f + tsOutCopy[16]
2151 * 0.34729635533386f;
2152 tmp1 = i00 + tsOutCopy[4] - tsOutCopy[8] - tsOutCopy[12] - tsOutCopy[12] - tsOutCopy[16];
2154 iip12 - tsOutCopy[4] * 0.34729635533386f - tsOutCopy[8] * 1.8793852415718f
2155 + tsOutCopy[16] * 1.532088886238f;
2157 iip12 - tsOutCopy[4] * 1.532088886238f + tsOutCopy[8] * 0.34729635533386f - tsOutCopy[16]
2159 tmp4 = tsOutCopy[0] - tsOutCopy[4] + tsOutCopy[8] - tsOutCopy[12] + tsOutCopy[16];
2161 // 4 points on even indices
2162 @LOC("THIS,LayerIIIDecoder.OUT") float i66_ = tsOutCopy[6] * 1.732050808f; // Sqrt[3]
2165 tsOutCopy[2] * 1.9696155060244f + i66_ + tsOutCopy[10] * 1.2855752193731f + tsOutCopy[14]
2166 * 0.68404028665134f;
2167 tmp1_ = (tsOutCopy[2] - tsOutCopy[10] - tsOutCopy[14]) * 1.732050808f;
2169 tsOutCopy[2] * 1.2855752193731f - i66_ - tsOutCopy[10] * 0.68404028665134f
2170 + tsOutCopy[14] * 1.9696155060244f;
2172 tsOutCopy[2] * 0.68404028665134f - i66_ + tsOutCopy[10] * 1.9696155060244f
2173 - tsOutCopy[14] * 1.2855752193731f;
2175 // 9 point IDCT on odd indices
2176 // 5 points on odd indices (not realy an IDCT)
2177 @LOC("THIS,LayerIIIDecoder.OUT") float i0 = tsOutCopy[0 + 1] + tsOutCopy[0 + 1];
2178 @LOC("THIS,LayerIIIDecoder.OUT") float i0p12 = i0 + tsOutCopy[12 + 1];
2181 i0p12 + tsOutCopy[4 + 1] * 1.8793852415718f + tsOutCopy[8 + 1] * 1.532088886238f
2182 + tsOutCopy[16 + 1] * 0.34729635533386f;
2184 i0 + tsOutCopy[4 + 1] - tsOutCopy[8 + 1] - tsOutCopy[12 + 1] - tsOutCopy[12 + 1]
2185 - tsOutCopy[16 + 1];
2187 i0p12 - tsOutCopy[4 + 1] * 0.34729635533386f - tsOutCopy[8 + 1] * 1.8793852415718f
2188 + tsOutCopy[16 + 1] * 1.532088886238f;
2190 i0p12 - tsOutCopy[4 + 1] * 1.532088886238f + tsOutCopy[8 + 1] * 0.34729635533386f
2191 - tsOutCopy[16 + 1] * 1.8793852415718f;
2193 (tsOutCopy[0 + 1] - tsOutCopy[4 + 1] + tsOutCopy[8 + 1] - tsOutCopy[12 + 1] + tsOutCopy[16 + 1]) * 0.707106781f; // Twiddled
2195 // 4 points on even indices
2196 @LOC("THIS,LayerIIIDecoder.OUT") float i6_ = tsOutCopy[6 + 1] * 1.732050808f; // Sqrt[3]
2199 tsOutCopy[2 + 1] * 1.9696155060244f + i6_ + tsOutCopy[10 + 1] * 1.2855752193731f
2200 + tsOutCopy[14 + 1] * 0.68404028665134f;
2201 tmp1_o = (tsOutCopy[2 + 1] - tsOutCopy[10 + 1] - tsOutCopy[14 + 1]) * 1.732050808f;
2203 tsOutCopy[2 + 1] * 1.2855752193731f - i6_ - tsOutCopy[10 + 1] * 0.68404028665134f
2204 + tsOutCopy[14 + 1] * 1.9696155060244f;
2206 tsOutCopy[2 + 1] * 0.68404028665134f - i6_ + tsOutCopy[10 + 1] * 1.9696155060244f
2207 - tsOutCopy[14 + 1] * 1.2855752193731f;
2209 // Twiddle factors on odd indices
2211 // Butterflies on 9 point IDCT's
2213 // twiddle factors for 36 point IDCT
2215 @LOC("THIS,LayerIIIDecoder.OUT") float e;
2216 @LOC("THIS,LayerIIIDecoder.OUT") float o;
2218 o = (tmp0o + tmp0_o) * 0.501909918f;
2222 o = (tmp1o + tmp1_o) * 0.517638090f;
2226 o = (tmp2o + tmp2_o) * 0.551688959f;
2230 o = (tmp3o + tmp3_o) * 0.610387294f;
2233 tmpf_4 = tmp4 + tmp4o;
2234 tmpf_13 = tmp4 - tmp4o;
2236 o = (tmp3o - tmp3_o) * 0.871723397f;
2240 o = (tmp2o - tmp2_o) * 1.183100792f;
2244 o = (tmp1o - tmp1_o) * 1.931851653f;
2248 o = (tmp0o - tmp0_o) * 5.736856623f;
2252 // end 36 point IDCT */
2253 // shift to modified IDCT
2254 // win_bt = win[block_type]; //substituted this so that a new area does
2255 // not become created
2257 rawout[0] = -tmpf_9 * win[block_type][0];
2258 rawout[1] = -tmpf_10 * win[block_type][1];
2259 rawout[2] = -tmpf_11 * win[block_type][2];
2260 rawout[3] = -tmpf_12 * win[block_type][3];
2261 rawout[4] = -tmpf_13 * win[block_type][4];
2262 rawout[5] = -tmpf_14 * win[block_type][5];
2263 rawout[6] = -tmpf_15 * win[block_type][6];
2264 rawout[7] = -tmpf_16 * win[block_type][7];
2265 rawout[8] = -tmpf_17 * win[block_type][8];
2266 rawout[9] = tmpf_17 * win[block_type][9];
2267 rawout[10] = tmpf_16 * win[block_type][10];
2268 rawout[11] = tmpf_15 * win[block_type][11];
2269 rawout[12] = tmpf_14 * win[block_type][12];
2270 rawout[13] = tmpf_13 * win[block_type][13];
2271 rawout[14] = tmpf_12 * win[block_type][14];
2272 rawout[15] = tmpf_11 * win[block_type][15];
2273 rawout[16] = tmpf_10 * win[block_type][16];
2274 rawout[17] = tmpf_9 * win[block_type][17];
2275 rawout[18] = tmpf_8 * win[block_type][18];
2276 rawout[19] = tmpf_7 * win[block_type][19];
2277 rawout[20] = tmpf_6 * win[block_type][20];
2278 rawout[21] = tmpf_5 * win[block_type][21];
2279 rawout[22] = tmpf_4 * win[block_type][22];
2280 rawout[23] = tmpf_3 * win[block_type][23];
2281 rawout[24] = tmpf_2 * win[block_type][24];
2282 rawout[25] = tmpf_1 * win[block_type][25];
2283 rawout[26] = tmpf_0 * win[block_type][26];
2284 rawout[27] = tmpf_0 * win[block_type][27];
2285 rawout[28] = tmpf_1 * win[block_type][28];
2286 rawout[29] = tmpf_2 * win[block_type][29];
2287 rawout[30] = tmpf_3 * win[block_type][30];
2288 rawout[31] = tmpf_4 * win[block_type][31];
2289 rawout[32] = tmpf_5 * win[block_type][32];
2290 rawout[33] = tmpf_6 * win[block_type][33];
2291 rawout[34] = tmpf_7 * win[block_type][34];
2292 rawout[35] = tmpf_8 * win[block_type][35];
2298 private int counter = 0;
2299 private static final int SSLIMIT = 18;
2300 private static final int SBLIMIT = 32;
2302 // Size of the table of whole numbers raised to 4/3 power.
2303 // This may be adjusted for performance without any problems.
2304 // public static final int POW_TABLE_LIMIT=512;
2306 /************************************************************/
2308 /************************************************************/
2322 @LATTICE("THIS<IN,THISLOC=THIS")
2323 public SBI(@DELEGATE @LOC("IN") int[] thel, @DELEGATE @LOC("IN") int[] thes) {
2330 static class gr_info_s {
2332 public int part2_3_length = 0;
2334 public int big_values = 0;
2336 public int global_gain = 0;
2338 public int scalefac_compress = 0;
2340 public int window_switching_flag = 0;
2342 public int block_type = 0;
2344 public int mixed_block_flag = 0;
2346 public int[] table_select;
2348 public int[] subblock_gain;
2350 public int region0_count = 0;
2352 public int region1_count = 0;
2354 public int preflag = 0;
2356 public int scalefac_scale = 0;
2358 public int count1table_select = 0;
2363 public gr_info_s() {
2364 table_select = new int[3];
2365 subblock_gain = new int[3];
2369 @LATTICE("GR2<GR1,GR1<GR,GR2*")
2370 static class temporaire {
2374 public gr_info_s[] gr;
2379 public temporaire() {
2381 gr = new gr_info_s[2];
2382 gr[0] = new gr_info_s();
2383 gr[1] = new gr_info_s();
2387 @LATTICE("CH<TEMP,TEMP*")
2388 static class III_side_info_t {
2391 public int main_data_begin = 0;
2393 public int private_bits = 0;
2395 public temporaire[] ch;
2400 public III_side_info_t() {
2401 ch = new temporaire[2];
2402 ch[0] = new temporaire();
2403 ch[1] = new temporaire();
2408 static class temporaire2 {
2410 public int[] l; /* [cb] */
2412 public int[][] s; /* [window][cb] */
2417 public temporaire2() {
2423 // class III_scalefac_t
2425 // public temporaire2[] tab;
2427 // * Dummy Constructor
2429 // public III_scalefac_t()
2431 // tab = new temporaire2[2];
2435 private static final int slen[][] = { { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
2436 { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 } };
2438 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,
2442 private SBI[] sfBandIndex; // Init in the constructor.
2444 public static final float two_to_negative_half_pow[] = { 1.0000000000E+00f, 7.0710678119E-01f,
2445 5.0000000000E-01f, 3.5355339059E-01f, 2.5000000000E-01f, 1.7677669530E-01f,
2446 1.2500000000E-01f, 8.8388347648E-02f, 6.2500000000E-02f, 4.4194173824E-02f,
2447 3.1250000000E-02f, 2.2097086912E-02f, 1.5625000000E-02f, 1.1048543456E-02f,
2448 7.8125000000E-03f, 5.5242717280E-03f, 3.9062500000E-03f, 2.7621358640E-03f,
2449 1.9531250000E-03f, 1.3810679320E-03f, 9.7656250000E-04f, 6.9053396600E-04f,
2450 4.8828125000E-04f, 3.4526698300E-04f, 2.4414062500E-04f, 1.7263349150E-04f,
2451 1.2207031250E-04f, 8.6316745750E-05f, 6.1035156250E-05f, 4.3158372875E-05f,
2452 3.0517578125E-05f, 2.1579186438E-05f, 1.5258789062E-05f, 1.0789593219E-05f,
2453 7.6293945312E-06f, 5.3947966094E-06f, 3.8146972656E-06f, 2.6973983047E-06f,
2454 1.9073486328E-06f, 1.3486991523E-06f, 9.5367431641E-07f, 6.7434957617E-07f,
2455 4.7683715820E-07f, 3.3717478809E-07f, 2.3841857910E-07f, 1.6858739404E-07f,
2456 1.1920928955E-07f, 8.4293697022E-08f, 5.9604644775E-08f, 4.2146848511E-08f,
2457 2.9802322388E-08f, 2.1073424255E-08f, 1.4901161194E-08f, 1.0536712128E-08f,
2458 7.4505805969E-09f, 5.2683560639E-09f, 3.7252902985E-09f, 2.6341780319E-09f,
2459 1.8626451492E-09f, 1.3170890160E-09f, 9.3132257462E-10f, 6.5854450798E-10f,
2460 4.6566128731E-10f, 3.2927225399E-10f };
2462 public static final float t_43[] = create_t_43();
2465 static private float[] create_t_43() {
2466 @LOC("OUT") float[] t43 = new float[8192];
2467 final double d43 = (4.0 / 3.0);
2469 for (@LOC("SH") int i = 0; i < 8192; i++) {
2470 t43[i] = (float) Math.pow(i, d43);
2475 public static final float io[][] = {
2476 { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f,
2477 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f,
2478 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f,
2479 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f,
2480 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f,
2481 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f,
2482 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f,
2483 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f },
2484 { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f,
2485 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f,
2486 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f,
2487 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f,
2488 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f,
2489 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f,
2490 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f,
2491 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } };
2493 public static final float TAN12[] = { 0.0f, 0.26794919f, 0.57735027f, 1.0f, 1.73205081f,
2494 3.73205081f, 9.9999999e10f, -3.73205081f, -1.73205081f, -1.0f, -0.57735027f, -0.26794919f,
2495 0.0f, 0.26794919f, 0.57735027f, 1.0f };
2497 // REVIEW: in java, the array lookup may well be slower than
2498 // the actual calculation
2501 * private static final int ss_div[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2502 * 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,
2503 * 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,
2504 * 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,
2505 * 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,
2506 * 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,
2507 * 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,
2508 * 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
2509 * 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
2510 * 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
2511 * 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
2512 * 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14,
2513 * 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
2514 * 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
2515 * 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
2516 * 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
2517 * 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
2518 * 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
2519 * 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
2520 * 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
2521 * 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
2522 * 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25,
2523 * 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26,
2524 * 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27,
2525 * 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
2526 * 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
2527 * 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30,
2528 * 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31,
2529 * 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 };
2531 * // 576 % 18 private static final int ss_mod[] = { 0, 1, 2, 3, 4, 5, 6, 7,
2532 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2533 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2534 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2535 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2536 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2537 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2538 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2539 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2540 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2541 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2542 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2543 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2544 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2545 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2546 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2547 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2548 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2549 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2550 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2551 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2552 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2553 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2554 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2555 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2556 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2557 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2558 * 12, 13, 14, 15, 16, 17 };
2561 private static/* final */int reorder_table[][]/* = loadReorderTable() */; // SZD:
2570 * Loads the data for the reorder
2573 * private static int[][] loadReorderTable() // SZD: table will be generated {
2574 * try { Class elemType = int[][].class.getComponentType(); Object o =
2575 * JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6);
2576 * return (int[][])o; } catch (IOException ex) { throw new
2577 * ExceptionInInitializerError(ex); } }
2579 @LATTICE("OUT<J,J<I,I<SE,I<WIN,SE<SF,SE<SFB,WIN<SFB,J*,I*,WIN*,SFB*")
2580 static int[] reorder(@LOC("SF") int scalefac_band[]) { // SZD: converted from
2582 @LOC("J") int j = 0;
2583 @LOC("OUT") int ix[] = new int[576];
2584 for (int sfb = 0; sfb < 13; sfb++) {
2585 int start = scalefac_band[sfb];
2586 int end = scalefac_band[sfb + 1];
2587 for (int window = 0; window < 3; window++)
2588 for (int i = start; i < end; i++)
2589 ix[3 * i + window] = j++;
2595 * static final int reorder_table_data[][]; = { { 0, 4, 8, 1, 5, 9, 2, 6, 10,
2596 * 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25,
2597 * 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45,
2598 * 51, 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, 63, 69,
2599 * 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, 90, 75, 83, 91, 76,
2600 * 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, 96,106,116, 97,107,117,
2601 * 98,108,118, 99,109,119,100,110,120,101,
2602 * 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140,
2603 * 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159,
2604 * 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137,
2605 * 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188,
2606 * 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211,
2607 * 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181,
2608 * 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248,
2609 * 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279,
2610 * 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233,
2611 * 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264,
2612 * 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295,
2613 * 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301,
2614 * 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338,
2615 * 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375,
2616 * 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317,
2617 * 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354,
2618 * 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391,
2619 * 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397,
2620 * 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444,
2621 * 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491,
2622 * 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413,
2623 * 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460,
2624 * 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507,
2625 * 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429,
2626 * 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476,
2627 * 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559,
2628 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2629 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2630 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2631 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2632 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2633 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2634 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2635 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2636 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2637 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2638 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2639 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2640 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2641 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2642 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2643 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2644 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2645 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2646 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2647 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2648 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2649 * 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346,
2650 * 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383,
2651 * 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325,
2652 * 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362,
2653 * 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399,
2654 * 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341,
2655 * 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454,
2656 * 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503,
2657 * 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421,
2658 * 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470,
2659 * 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519,
2660 * 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437,
2661 * 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486,
2662 * 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535,
2663 * 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541,
2664 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2665 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, { 0, 4,
2666 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2667 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2668 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2669 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2670 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2671 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2672 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2673 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2674 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2675 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2676 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2677 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2678 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2679 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2680 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2681 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2682 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2683 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2684 * 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344,
2685 * 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379,
2686 * 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325,
2687 * 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360,
2688 * 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395,
2689 * 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341,
2690 * 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446,
2691 * 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491,
2692 * 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417,
2693 * 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462,
2694 * 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507,
2695 * 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433,
2696 * 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478,
2697 * 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559,
2698 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2699 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2700 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2701 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2702 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2703 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2704 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2705 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, 92,102,112,
2706 * 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, 107,117, 98,108,118,
2707 * 99,109,119,120,132,144,121,133,145,122,134,
2708 * 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151,
2709 * 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157,
2710 * 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176,
2711 * 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195,
2712 * 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201,
2713 * 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224,
2714 * 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247,
2715 * 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253,
2716 * 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280,
2717 * 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307,
2718 * 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269,
2719 * 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348,
2720 * 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383,
2721 * 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329,
2722 * 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364,
2723 * 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399,
2724 * 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345,
2725 * 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466,
2726 * 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527,
2727 * 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421,
2728 * 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482,
2729 * 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543,
2730 * 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437,
2731 * 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498,
2732 * 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559,
2733 * 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453,
2734 * 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514,
2735 * 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, { 0, 4,
2736 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2737 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2738 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2739 * 58, 64, 53, 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76,
2740 * 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, 88, 98,108,
2741 * 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93,
2742 * 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130,
2743 * 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147,
2744 * 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153,
2745 * 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172,
2746 * 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191,
2747 * 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197,
2748 * 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218,
2749 * 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239,
2750 * 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245,
2751 * 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270,
2752 * 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295,
2753 * 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301,
2754 * 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332,
2755 * 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363,
2756 * 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317,
2757 * 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348,
2758 * 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511,
2759 * 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385,
2760 * 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456,
2761 * 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527,
2762 * 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401,
2763 * 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472,
2764 * 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543,
2765 * 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417,
2766 * 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488,
2767 * 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559,
2768 * 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433,
2769 * 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504,
2770 * 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, { 0, 4,
2771 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2772 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2773 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2774 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2775 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, 92,104,116,
2776 * 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, 109,121, 98,110,122,
2777 * 99,111,123,100,112,124,101,113,125,126,142,
2778 * 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163,
2779 * 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137,
2780 * 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194,
2781 * 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219,
2782 * 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185,
2783 * 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210,
2784 * 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287,
2785 * 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241,
2786 * 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272,
2787 * 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303,
2788 * 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257,
2789 * 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348,
2790 * 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387,
2791 * 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325,
2792 * 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364,
2793 * 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403,
2794 * 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341,
2795 * 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456,
2796 * 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503,
2797 * 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425,
2798 * 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472,
2799 * 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519,
2800 * 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441,
2801 * 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488,
2802 * 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535,
2803 * 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541,
2804 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2805 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} };
2808 private static final float cs[] = { 0.857492925712f, 0.881741997318f, 0.949628649103f,
2809 0.983314592492f, 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f };
2811 private static final float ca[] = { -0.5144957554270f, -0.4717319685650f, -0.3133774542040f,
2812 -0.1819131996110f, -0.0945741925262f, -0.0409655828852f, -0.0141985685725f,
2813 -0.00369997467375f };
2815 /************************************************************/
2816 /* END OF L3TABLE */
2817 /************************************************************/
2819 /************************************************************/
2821 /************************************************************/
2823 /***************************************************************/
2825 /***************************************************************/
2827 /***************************************************************/
2829 /***************************************************************/
2830 public static final float win[][] = {
2831 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2832 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2833 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2834 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2835 -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2836 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2837 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2838 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2839 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f },
2841 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2842 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2843 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2844 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2845 -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f,
2846 -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f,
2847 -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f,
2848 -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f,
2849 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2851 { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f,
2852 -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f,
2853 -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f,
2854 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2855 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2856 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2857 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2858 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2859 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2861 { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2862 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f,
2863 -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f,
2864 -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f,
2865 -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2866 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2867 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2868 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2869 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } };
2871 /***************************************************************/
2872 /* END OF INV_MDCT */
2873 /***************************************************************/
2875 public static final int nr_of_sfb_block[][][] = {
2876 { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } },
2877 { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } },
2878 { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } },
2879 { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } },
2880 { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } },
2881 { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } } };