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("ISR*,ISP*,LR<ISR,ISR<ISP,SI1<SF2,NS*,HD<ST,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<SF1,BR1<NZ,NZ<BR,SI1<RT,RT<SBI,SBI<SI,BUF<FT,SF1<CH0,CH0<HD1,FT<SP,SP<OUT,OUT<SI1,SI1<SI,SFB_SH<BR1,BR1<BR,HD1<HD,OUT*,BR1*,SI1*,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")
51 @METHODDEFAULT("OUT<V,V<THIS,THIS<SH,SH<IN,SH*,THISLOC=THIS,GLOBALLOC=IN")
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[] out_1d; // 576 samples
70 private float[][] prevblck;
74 private int[] nonzero;
76 // private Header header;
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 temporaire2[] scalefac;
93 // private III_scalefac_t scalefac;
98 private int frame_start;
99 // @LOC("SI1") private int part2_start;
101 private int channels;
103 private int first_channel;
105 private int last_channel;
109 private int part2_start;
111 private boolean initialized = false;
113 // constructor for the linear type system
114 public LayerIIIDecoder(@DELEGATE @LOC("VAR") SynthesisFilter filtera,
115 @DELEGATE @LOC("VAR") SynthesisFilter filterb, @LOC("VAR") int which_ch0) {
120 huffcodetab.inithuff();
121 is_1d = new int[SBLIMIT * SSLIMIT + 4];
122 ro = new float[2][SBLIMIT][SSLIMIT];
123 lr = new float[2][SBLIMIT][SSLIMIT];
124 out_1d = new float[SBLIMIT * SSLIMIT];
125 prevblck = new float[2][SBLIMIT * SSLIMIT];
126 k = new float[2][SBLIMIT * SSLIMIT];
127 nonzero = new int[2];
129 // removes unnecessary aliases
131 // III_scalefac_t = new temporaire2[2];
132 // III_scalefac_t[0] = new temporaire2();
133 // III_scalefac_t[1] = new temporaire2();
134 // scalefac = III_scalefac_t;
136 scalefac = new temporaire2[2];
137 scalefac[0] = new temporaire2();
138 scalefac[1] = new temporaire2();
142 sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
143 @LOC("VAR") int[] l0 =
144 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
146 @LOC("VAR") int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192 };
147 @LOC("VAR") int[] l1 =
148 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 330, 394,
150 @LOC("VAR") int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192 };
151 @LOC("VAR") int[] l2 =
152 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
154 @LOC("VAR") int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
156 @LOC("VAR") int[] l3 =
157 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342,
159 @LOC("VAR") int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192 };
160 @LOC("VAR") int[] l4 =
161 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330,
163 @LOC("VAR") int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192 };
164 @LOC("VAR") int[] l5 =
165 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448,
167 @LOC("VAR") int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192 };
169 @LOC("VAR") int[] l6 =
170 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
172 @LOC("VAR") int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
173 @LOC("VAR") int[] l7 =
174 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
176 @LOC("VAR") int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
177 @LOC("VAR") int[] l8 =
178 { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568,
179 570, 572, 574, 576 };
180 @LOC("VAR") int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 };
182 sfBandIndex[0] = new SBI(l0, s0);
183 sfBandIndex[1] = new SBI(l1, s1);
184 sfBandIndex[2] = new SBI(l2, s2);
186 sfBandIndex[3] = new SBI(l3, s3);
187 sfBandIndex[4] = new SBI(l4, s4);
188 sfBandIndex[5] = new SBI(l5, s5);
190 sfBandIndex[6] = new SBI(l6, s6);
191 sfBandIndex[7] = new SBI(l7, s7);
192 sfBandIndex[8] = new SBI(l8, s8);
193 // END OF L3TABLE INIT
195 if (reorder_table == null) { // SZD: generate LUT
196 reorder_table = new int[9][];
197 for (@LOC("I") int i = 0; i < 9; i++)
198 reorder_table[i] = reorder(sfBandIndex[i].s);
202 @LOC("VAR") int[] ll0 = { 0, 6, 11, 16, 21 };
203 @LOC("VAR") int[] ss0 = { 0, 6, 12 };
204 sftable = new Sftable(ll0, ss0);
208 scalefac_buffer = new int[54];
209 // END OF scalefac_buffer
213 private void init(Header header) {
216 channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
217 max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
220 header.sample_frequency()
221 + ((header.version() == Header.MPEG1) ? 3 : (header.version() == Header.MPEG25_LSF) ? 6
225 switch (which_channels) {
226 case OutputChannels.LEFT_CHANNEL:
227 case OutputChannels.DOWNMIX_CHANNELS:
228 first_channel = last_channel = 0;
231 case OutputChannels.RIGHT_CHANNEL:
232 first_channel = last_channel = 1;
235 case OutputChannels.BOTH_CHANNELS:
242 first_channel = last_channel = 0;
245 for (@LOC("CH") int ch = 0; ch < 2; ch++)
246 for (@LOC("J") int j = 0; j < 576; j++)
247 prevblck[ch][j] = 0.0f;
249 nonzero[0] = nonzero[1] = 576;
251 br = new BitReserve();
252 si = new III_side_info_t();
261 // REVIEW: these constructor arguments should be moved to the
262 // decodeFrame() method, where possible, so that one
263 // @LATTICE("THIS<VAR,THIS<I,THIS<J,J<CH,I*,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
264 // public LayerIIIDecoder(@LOC("VAR") Header header0, @LOC("VAR")
265 // SynthesisFilter filtera,
266 // @LOC("VAR") SynthesisFilter filterb, @LOC("VAR") int which_ch0) {
268 // huffcodetab.inithuff();
269 // is_1d = new int[SBLIMIT * SSLIMIT + 4];
270 // ro = new float[2][SBLIMIT][SSLIMIT];
271 // lr = new float[2][SBLIMIT][SSLIMIT];
272 // out_1d = new float[SBLIMIT * SSLIMIT];
273 // prevblck = new float[2][SBLIMIT * SSLIMIT];
274 // k = new float[2][SBLIMIT * SSLIMIT];
275 // nonzero = new int[2];
277 // // removes unnecessary aliases
278 // // III_scalefact_t
279 // // III_scalefac_t = new temporaire2[2];
280 // // III_scalefac_t[0] = new temporaire2();
281 // // III_scalefac_t[1] = new temporaire2();
282 // // scalefac = III_scalefac_t;
284 // scalefac = new temporaire2[2];
285 // scalefac[0] = new temporaire2();
286 // scalefac[1] = new temporaire2();
290 // sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
291 // @LOC("VAR") int[] l0 =
292 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
295 // @LOC("VAR") int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132,
297 // @LOC("VAR") int[] l1 =
298 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232,
301 // @LOC("VAR") int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136,
303 // @LOC("VAR") int[] l2 =
304 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
307 // @LOC("VAR") int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
310 // @LOC("VAR") int[] l3 =
311 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196,
314 // @LOC("VAR") int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136,
316 // @LOC("VAR") int[] l4 =
317 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190,
320 // @LOC("VAR") int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126,
322 // @LOC("VAR") int[] l5 =
323 // { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240,
326 // @LOC("VAR") int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138,
329 // @LOC("VAR") int[] l6 =
330 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
333 // @LOC("VAR") int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
335 // @LOC("VAR") int[] l7 =
336 // { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238,
339 // @LOC("VAR") int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
341 // @LOC("VAR") int[] l8 =
342 // { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400,
344 // 570, 572, 574, 576 };
345 // @LOC("VAR") int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164,
348 // sfBandIndex[0] = new SBI(l0, s0);
349 // sfBandIndex[1] = new SBI(l1, s1);
350 // sfBandIndex[2] = new SBI(l2, s2);
352 // sfBandIndex[3] = new SBI(l3, s3);
353 // sfBandIndex[4] = new SBI(l4, s4);
354 // sfBandIndex[5] = new SBI(l5, s5);
356 // sfBandIndex[6] = new SBI(l6, s6);
357 // sfBandIndex[7] = new SBI(l7, s7);
358 // sfBandIndex[8] = new SBI(l8, s8);
359 // // END OF L3TABLE INIT
361 // if (reorder_table == null) { // SZD: generate LUT
362 // reorder_table = new int[9][];
363 // for (@LOC("I") int i = 0; i < 9; i++)
364 // reorder_table[i] = reorder(sfBandIndex[i].s);
368 // @LOC("VAR") int[] ll0 = { 0, 6, 11, 16, 21 };
369 // @LOC("VAR") int[] ss0 = { 0, 6, 12 };
370 // sftable = new Sftable(ll0, ss0);
373 // // scalefac_buffer
374 // scalefac_buffer = new int[54];
375 // // END OF scalefac_buffer
377 // // header = header0;
378 // filter1 = filtera;
379 // filter2 = filterb;
380 // // buffer = buffer0;
381 // which_channels = which_ch0;
384 // channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
385 // max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
388 // header.sample_frequency()
389 // + ((header.version() == Header.MPEG1) ? 3 : (header.version() ==
390 // Header.MPEG25_LSF) ? 6
393 // if (channels == 2) {
394 // switch (which_channels) {
395 // case OutputChannels.LEFT_CHANNEL:
396 // case OutputChannels.DOWNMIX_CHANNELS:
397 // first_channel = last_channel = 0;
400 // case OutputChannels.RIGHT_CHANNEL:
401 // first_channel = last_channel = 1;
404 // case OutputChannels.BOTH_CHANNELS:
406 // first_channel = 0;
411 // first_channel = last_channel = 0;
414 // for (@LOC("CH") int ch = 0; ch < 2; ch++)
415 // for (@LOC("J") int j = 0; j < 576; j++)
416 // prevblck[ch][j] = 0.0f;
418 // nonzero[0] = nonzero[1] = 576;
420 // br = new BitReserve();
421 // si = new III_side_info_t();
425 * Notify decoder that a seek is being made.
427 @LATTICE("THIS<J,J<CH,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
428 public void seek_notify() {
430 for (@LOC("CH") int ch = 0; ch < 2; ch++)
431 for (@LOC("J") int j = 0; j < 576; j++)
432 prevblck[ch][j] = 0.0f;
433 br = new BitReserve();
436 public void decodeFrame(Header header) {
441 * Decode one frame, filling the buffer with the output samples.
444 // subband samples are buffered and passed to the
445 // SynthesisFilter in one go.
447 private float[] samples1 = new float[32];
449 private float[] samples2 = new float[32];
452 * location hierarchy of decode() {header} {stream} {si} {br, flush_main,
453 * main_data_end,frame_start,nSlots,bytes_to_discard}* {gr,max_gr} // granule
454 * {ch,channels,first_channel, last_channel, which_channels} // channel
455 * {part2_start} {sb18, ss} {out_1d}* {sb}* {samples1,sample2}
458 // @LATTICE("BYTE<THIS,THIS<MAIN,MAIN<VAR,THIS<GR,GR<VAR,BYTE*,GR*,THISLOC=THIS,GLOBALLOC=VAR")
459 @LATTICE("VAR<THIS,C<THIS,THIS<IN,THISLOC=THIS,C*,VAR*")
460 public void decode(Header header) {
466 @LOC("THIS,LayerIIIDecoder.HD1") int nSlots = header.slots();
468 @LOC("THIS,LayerIIIDecoder.CH0") int gr;
469 @LOC("THIS,LayerIIIDecoder.CH0") int ch;
471 @LOC("THIS,LayerIIIDecoder.CH0") int ss;
472 @LOC("THIS,LayerIIIDecoder.CH0") int sb;
473 @LOC("THIS,LayerIIIDecoder.CH0") int sb18;
475 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int main_data_end;
476 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int flush_main;
478 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int bytes_to_discard;
481 // modifications for linear type
482 get_side_info(header);
483 br = header.getBitReserve();
485 // here 'gr' and 'max_gr' should be higher than 'ch','channels', and more
486 for (gr = 0; gr < max_gr; gr++) { // two granules per channel
487 // in the loop body, access set={part2_start}
489 // 'ch', 'channels' should be higher than all locs in the below body
490 for (ch = 0; ch < channels; ch++) {
491 part2_start = br.hsstell();
493 // grab scale factors from the main data.
494 // following the scale factors is the actual compressed data
495 if (header.version() == Header.MPEG1)
496 get_scale_factors(header, ch, gr); // no need to care from this side
497 // here move scale factor data from 'br' buffer to 'scalefac' field
499 // MPEG-2 LSF, SZD: MPEG-2.5 LSF
500 get_LSF_scale_factors(header, ch, gr); // no need to care from this
503 // here, decoding the compressed audio data
504 huffman_decode(ch, gr); // no need to care from this side
505 // System.out.println("CheckSum HuffMan = " + CheckSumHuff);
506 dequantize_sample(/* ro[ch], */ch, gr); // no need to care from this
510 stereo(header, gr); // no need to care from this side
512 if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) {
516 for (ch = first_channel; ch <= last_channel; ch++) { // 'ch' and
521 // read set= lr,ch,gr,out_1d, sb18, ss, SSLIMIT, out_1d
524 reorder(/* lr[ch], */ch, gr);
527 // float CheckSumOut1d=0;
528 // for (int hb = 0;hb<576;hb++) {
529 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
531 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
535 // float CheckSumOut1d=0;
536 // for (int hb = 0;hb<576;hb++) {
537 // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
539 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
541 for (sb18 = 18; sb18 < 576; sb18 += 36) {
542 // sb18 > ss, SSLIMIT, out1d
543 // Frequency inversion
544 for (ss = 1; ss < SSLIMIT; ss += 2) {
545 // 'ss','SSLIMIT' > out_1d
546 out_1d[sb18 + ss] = -out_1d[sb18 + ss]; // out1d*
550 // 'ch', 'which_channels' should be higher than if/else body!
551 // location set written by if/else body
552 // = {samples1, samples2, filter1, filter2}
553 if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) {
554 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
556 for (sb18 = 0; sb18 < 576; sb18 += 18) {
557 samples1[sb] = out_1d[sb18 + ss]; // out_1d > samples1
558 // filter1.input_sample(out_1d[sb18+ss], sb);
559 sb++; // sb should be loc*
561 filter1.input_samples(samples1);
562 filter1.calculate_pcm_samples();
565 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
567 for (sb18 = 0; sb18 < 576; sb18 += 18) {
568 samples2[sb] = out_1d[sb18 + ss]; // out_1d > samples2
569 // filter2.input_sample(out_1d[sb18+ss], sb);
572 filter2.input_samples(samples2);
573 filter2.calculate_pcm_samples();
580 // System.out.println("Counter = ................................."+counter);
581 // if (counter < 609)
583 counter++; // count should be loc*
584 // buffer.write_buffer(1); // buffer!!!
586 // else if (counter == 609)
598 * Reads the side info from the stream, assuming the entire. frame has been
599 * read already. Mono : 136 bits (= 17 bytes) Stereo : 256 bits (= 32 bytes)
601 private boolean get_side_info(Header header) {
603 SideInfoBuffer sib = header.getSideInfoBuffer();
606 // System.out.println("#get_side_info");
607 if (header.version() == Header.MPEG1) {
609 si.main_data_begin = sib.get_bits(9);
611 si.private_bits = sib.get_bits(5);
613 si.private_bits = sib.get_bits(3);
615 for (ch = 0; ch < channels; ch++) {
616 si.ch[ch].scfsi[0] = sib.get_bits(1);
617 si.ch[ch].scfsi[1] = sib.get_bits(1);
618 si.ch[ch].scfsi[2] = sib.get_bits(1);
619 si.ch[ch].scfsi[3] = sib.get_bits(1);
622 // System.out.println("BEFORE GR,CH");
624 for (gr = 0; gr < 2; gr++) {
625 // System.out.println("GR=" + gr);
626 for (ch = 0; ch < channels; ch++) {
627 // System.out.println("CH");
628 si.ch[ch].gr[gr].part2_3_length = sib.get_bits(12);
629 si.ch[ch].gr[gr].big_values = sib.get_bits(9);
630 si.ch[ch].gr[gr].global_gain = sib.get_bits(8);
631 si.ch[ch].gr[gr].scalefac_compress = sib.get_bits(4);
632 si.ch[ch].gr[gr].window_switching_flag = sib.get_bits(1);
633 if ((si.ch[ch].gr[gr].window_switching_flag) != 0) {
634 si.ch[ch].gr[gr].block_type = sib.get_bits(2);
635 si.ch[ch].gr[gr].mixed_block_flag = sib.get_bits(1);
637 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
638 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
640 si.ch[ch].gr[gr].subblock_gain[0] = sib.get_bits(3);
641 si.ch[ch].gr[gr].subblock_gain[1] = sib.get_bits(3);
642 si.ch[ch].gr[gr].subblock_gain[2] = sib.get_bits(3);
644 // Set region_count parameters since they are implicit
647 if (si.ch[ch].gr[gr].block_type == 0) {
648 // Side info bad: block_type == 0 in split block
650 } else if (si.ch[ch].gr[gr].block_type == 2 && si.ch[ch].gr[gr].mixed_block_flag == 0) {
651 si.ch[ch].gr[gr].region0_count = 8;
653 si.ch[ch].gr[gr].region0_count = 7;
655 si.ch[ch].gr[gr].region1_count = 20 - si.ch[ch].gr[gr].region0_count;
657 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
658 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
659 si.ch[ch].gr[gr].table_select[2] = sib.get_bits(5);
660 si.ch[ch].gr[gr].region0_count = sib.get_bits(4);
661 si.ch[ch].gr[gr].region1_count = sib.get_bits(3);
662 si.ch[ch].gr[gr].block_type = 0;
664 si.ch[ch].gr[gr].preflag = sib.get_bits(1);
665 si.ch[ch].gr[gr].scalefac_scale = sib.get_bits(1);
666 si.ch[ch].gr[gr].count1table_select = sib.get_bits(1);
670 } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF
672 si.main_data_begin = sib.get_bits(8);
674 si.private_bits = sib.get_bits(1);
676 si.private_bits = sib.get_bits(2);
678 for (ch = 0; ch < channels; ch++) {
680 si.ch[ch].gr[0].part2_3_length = sib.get_bits(12);
681 si.ch[ch].gr[0].big_values = sib.get_bits(9);
682 si.ch[ch].gr[0].global_gain = sib.get_bits(8);
683 si.ch[ch].gr[0].scalefac_compress = sib.get_bits(9);
684 si.ch[ch].gr[0].window_switching_flag = sib.get_bits(1);
686 if ((si.ch[ch].gr[0].window_switching_flag) != 0) {
688 si.ch[ch].gr[0].block_type = sib.get_bits(2);
689 si.ch[ch].gr[0].mixed_block_flag = sib.get_bits(1);
690 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
691 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
693 si.ch[ch].gr[0].subblock_gain[0] = sib.get_bits(3);
694 si.ch[ch].gr[0].subblock_gain[1] = sib.get_bits(3);
695 si.ch[ch].gr[0].subblock_gain[2] = sib.get_bits(3);
697 // Set region_count parameters since they are implicit in
700 if (si.ch[ch].gr[0].block_type == 0) {
701 // Side info bad: block_type == 0 in split block
703 } else if (si.ch[ch].gr[0].block_type == 2 && si.ch[ch].gr[0].mixed_block_flag == 0) {
704 si.ch[ch].gr[0].region0_count = 8;
706 si.ch[ch].gr[0].region0_count = 7;
707 si.ch[ch].gr[0].region1_count = 20 - si.ch[ch].gr[0].region0_count;
711 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
712 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
713 si.ch[ch].gr[0].table_select[2] = sib.get_bits(5);
714 si.ch[ch].gr[0].region0_count = sib.get_bits(4);
715 si.ch[ch].gr[0].region1_count = sib.get_bits(3);
716 si.ch[ch].gr[0].block_type = 0;
719 si.ch[ch].gr[0].scalefac_scale = sib.get_bits(1);
720 si.ch[ch].gr[0].count1table_select = sib.get_bits(1);
721 } // for(ch=0; ch<channels; ch++)
722 } // if (header.version() == MPEG1)
729 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
730 private void get_scale_factors(Header header, @LOC("THIS,LayerIIIDecoder.CH0") int ch,
731 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
733 // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias
735 @LOC("THIS,LayerIIIDecoder.NS") int sfb;
736 @LOC("THIS,LayerIIIDecoder.NS") int window;
737 @LOC("THIS,LayerIIIDecoder.NS") int scale_comp = si.ch[ch].gr[gr].scalefac_compress;
738 @LOC("THIS,LayerIIIDecoder.NS") int length0 = slen[0][scale_comp];
739 @LOC("THIS,LayerIIIDecoder.NS") int length1 = slen[1][scale_comp];
741 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
742 if ((si.ch[ch].gr[gr].mixed_block_flag) != 0) { // MIXED
743 for (sfb = 0; sfb < 8; sfb++)
744 scalefac[ch].l[sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
745 for (sfb = 3; sfb < 6; sfb++)
746 for (window = 0; window < 3; window++)
747 scalefac[ch].s[window][sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
748 for (sfb = 6; sfb < 12; sfb++)
749 for (window = 0; window < 3; window++)
750 scalefac[ch].s[window][sfb] = br.hgetbits(slen[1][si.ch[ch].gr[gr].scalefac_compress]);
751 for (sfb = 12, window = 0; window < 3; window++)
752 scalefac[ch].s[window][sfb] = 0;
756 scalefac[ch].s[0][0] = br.hgetbits(length0);
757 scalefac[ch].s[1][0] = br.hgetbits(length0);
758 scalefac[ch].s[2][0] = br.hgetbits(length0);
759 scalefac[ch].s[0][1] = br.hgetbits(length0);
760 scalefac[ch].s[1][1] = br.hgetbits(length0);
761 scalefac[ch].s[2][1] = br.hgetbits(length0);
762 scalefac[ch].s[0][2] = br.hgetbits(length0);
763 scalefac[ch].s[1][2] = br.hgetbits(length0);
764 scalefac[ch].s[2][2] = br.hgetbits(length0);
765 scalefac[ch].s[0][3] = br.hgetbits(length0);
766 scalefac[ch].s[1][3] = br.hgetbits(length0);
767 scalefac[ch].s[2][3] = br.hgetbits(length0);
768 scalefac[ch].s[0][4] = br.hgetbits(length0);
769 scalefac[ch].s[1][4] = br.hgetbits(length0);
770 scalefac[ch].s[2][4] = br.hgetbits(length0);
771 scalefac[ch].s[0][5] = br.hgetbits(length0);
772 scalefac[ch].s[1][5] = br.hgetbits(length0);
773 scalefac[ch].s[2][5] = br.hgetbits(length0);
774 scalefac[ch].s[0][6] = br.hgetbits(length1);
775 scalefac[ch].s[1][6] = br.hgetbits(length1);
776 scalefac[ch].s[2][6] = br.hgetbits(length1);
777 scalefac[ch].s[0][7] = br.hgetbits(length1);
778 scalefac[ch].s[1][7] = br.hgetbits(length1);
779 scalefac[ch].s[2][7] = br.hgetbits(length1);
780 scalefac[ch].s[0][8] = br.hgetbits(length1);
781 scalefac[ch].s[1][8] = br.hgetbits(length1);
782 scalefac[ch].s[2][8] = br.hgetbits(length1);
783 scalefac[ch].s[0][9] = br.hgetbits(length1);
784 scalefac[ch].s[1][9] = br.hgetbits(length1);
785 scalefac[ch].s[2][9] = br.hgetbits(length1);
786 scalefac[ch].s[0][10] = br.hgetbits(length1);
787 scalefac[ch].s[1][10] = br.hgetbits(length1);
788 scalefac[ch].s[2][10] = br.hgetbits(length1);
789 scalefac[ch].s[0][11] = br.hgetbits(length1);
790 scalefac[ch].s[1][11] = br.hgetbits(length1);
791 scalefac[ch].s[2][11] = br.hgetbits(length1);
792 scalefac[ch].s[0][12] = 0;
793 scalefac[ch].s[1][12] = 0;
794 scalefac[ch].s[2][12] = 0;
797 } else { // LONG types 0,1,3
799 if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) {
800 scalefac[ch].l[0] = br.hgetbits(length0);
801 scalefac[ch].l[1] = br.hgetbits(length0);
802 scalefac[ch].l[2] = br.hgetbits(length0);
803 scalefac[ch].l[3] = br.hgetbits(length0);
804 scalefac[ch].l[4] = br.hgetbits(length0);
805 scalefac[ch].l[5] = br.hgetbits(length0);
807 if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) {
808 scalefac[ch].l[6] = br.hgetbits(length0);
809 scalefac[ch].l[7] = br.hgetbits(length0);
810 scalefac[ch].l[8] = br.hgetbits(length0);
811 scalefac[ch].l[9] = br.hgetbits(length0);
812 scalefac[ch].l[10] = br.hgetbits(length0);
814 if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) {
815 scalefac[ch].l[11] = br.hgetbits(length1);
816 scalefac[ch].l[12] = br.hgetbits(length1);
817 scalefac[ch].l[13] = br.hgetbits(length1);
818 scalefac[ch].l[14] = br.hgetbits(length1);
819 scalefac[ch].l[15] = br.hgetbits(length1);
821 if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) {
822 scalefac[ch].l[16] = br.hgetbits(length1);
823 scalefac[ch].l[17] = br.hgetbits(length1);
824 scalefac[ch].l[18] = br.hgetbits(length1);
825 scalefac[ch].l[19] = br.hgetbits(length1);
826 scalefac[ch].l[20] = br.hgetbits(length1);
829 scalefac[ch].l[21] = 0;
830 scalefac[ch].l[22] = 0;
837 // MDM: new_slen is fully initialized before use, no need
838 // to reallocate array.
840 private final int[] new_slen = new int[4];
843 @LATTICE("M<THIS,THIS<IN,THIS<C,C*,M*,THISLOC=THIS,GLOBALLOC=THIS")
844 private void get_LSF_scale_data(Header header, @LOC("THIS,LayerIIIDecoder.CH0") int ch,
845 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
847 @LOC("THIS,LayerIIIDecoder.HD1") int mode_ext = header.mode_extension();
848 // @LOC("THIS,LayerIIIDecoder.GLSFD1") gr_info_s gr_info =
849 // (si.ch[ch].gr[gr]); // remove alias
851 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int scalefac_comp =
852 si.ch[ch].gr[gr].scalefac_compress;
853 @LOC("THIS,LayerIIIDecoder.SI") int blocktypenumber;
855 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int int_scalefac_comp;
856 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m;
857 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int blocknumber =
860 if (si.ch[ch].gr[gr].block_type == 2) {
861 if (si.ch[ch].gr[gr].mixed_block_flag == 0) {
863 } else if (si.ch[ch].gr[gr].mixed_block_flag == 1) {
872 if (!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
874 if (scalefac_comp < 400) {
876 new_slen[0] = (scalefac_comp >>> 4) / 5;
877 new_slen[1] = (scalefac_comp >>> 4) % 5;
878 new_slen[2] = (scalefac_comp & 0xF) >>> 2;
879 new_slen[3] = (scalefac_comp & 3);
880 si.ch[ch].gr[gr].preflag = 0;
883 } else if (scalefac_comp < 500) {
885 new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5;
886 new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5;
887 new_slen[2] = (scalefac_comp - 400) & 3;
889 si.ch[ch].gr[gr].preflag = 0;
892 } else if (scalefac_comp < 512) {
894 new_slen[0] = (scalefac_comp - 500) / 3;
895 new_slen[1] = (scalefac_comp - 500) % 3;
898 si.ch[ch].gr[gr].preflag = 1;
903 if ((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
904 int_scalefac_comp = scalefac_comp >>> 1;
906 if (int_scalefac_comp < 180) {
907 new_slen[0] = int_scalefac_comp / 36;
908 new_slen[1] = (int_scalefac_comp % 36) / 6;
909 new_slen[2] = (int_scalefac_comp % 36) % 6;
911 si.ch[ch].gr[gr].preflag = 0;
913 } else if (int_scalefac_comp < 244) {
914 new_slen[0] = ((int_scalefac_comp - 180) & 0x3F) >>> 4;
915 new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2;
916 new_slen[2] = (int_scalefac_comp - 180) & 3;
918 si.ch[ch].gr[gr].preflag = 0;
920 } else if (int_scalefac_comp < 255) {
921 new_slen[0] = (int_scalefac_comp - 244) / 3;
922 new_slen[1] = (int_scalefac_comp - 244) % 3;
925 si.ch[ch].gr[gr].preflag = 0;
930 for (@LOC("C") int x = 0; x < 45; x++)
932 scalefac_buffer[x] = 0;
935 for (@LOC("C") int i = 0; i < 4; i++) {
936 for (@LOC("THIS,LayerIIIDecoder.NS") int j = 0; j < nr_of_sfb_block[blocknumber][blocktypenumber][i]; j++) {
937 scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : br.hgetbits(new_slen[i]);
940 } // for (unint32 j ...
941 } // for (uint32 i ...
947 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
948 private void get_LSF_scale_factors(Header header, @LOC("THIS,LayerIIIDecoder.CH0") int ch,
949 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
951 @LOC("THIS,LayerIIIDecoder.SFB_SH") int sfb;
952 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m = 0;
953 @LOC("THIS,LayerIIIDecoder.SFB_SH") int window;
954 // gr_info_s gr_info = (si.ch[ch].gr[gr]); // remove alias
956 get_LSF_scale_data(header, ch, gr);
958 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
959 if (si.ch[ch].gr[gr].mixed_block_flag != 0) { // MIXED
960 for (sfb = 0; sfb < 8; sfb++) {
961 scalefac[ch].l[sfb] = scalefac_buffer[m];
964 for (sfb = 3; sfb < 12; sfb++) {
965 for (window = 0; window < 3; window++) {
966 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
970 for (window = 0; window < 3; window++)
971 scalefac[ch].s[window][12] = 0;
975 for (sfb = 0; sfb < 12; sfb++) {
976 for (window = 0; window < 3; window++) {
977 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
982 for (window = 0; window < 3; window++)
983 scalefac[ch].s[window][12] = 0;
985 } else { // LONG types 0,1,3
987 for (sfb = 0; sfb < 21; sfb++) {
988 scalefac[ch].l[sfb] = scalefac_buffer[m];
991 scalefac[ch].l[21] = 0; // Jeff
992 scalefac[ch].l[22] = 0;
1016 private void huffman_decode(int ch, int gr) {
1022 int part2_3_end = part2_start + si.ch[ch].gr[gr].part2_3_length;
1032 // Find region boundary for short block case
1034 if (((si.ch[ch].gr[gr].window_switching_flag) != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1037 // MS: Extrahandling for 8KHZ
1038 region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case
1040 region2Start = 576; // No Region2 for short block case
1042 } else { // Find region boundary for long block case
1044 buf = si.ch[ch].gr[gr].region0_count + 1;
1045 buf1 = buf + si.ch[ch].gr[gr].region1_count + 1;
1047 if (buf1 > sfBandIndex[sfreq].l.length - 1)
1048 buf1 = sfBandIndex[sfreq].l.length - 1;
1050 region1Start = sfBandIndex[sfreq].l[buf];
1051 region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */
1055 // Read bigvalues area
1056 for (int i = 0; i < (si.ch[ch].gr[gr].big_values << 1); i += 2) {
1059 if (i < region1Start) {
1060 htIdx = si.ch[ch].gr[gr].table_select[0];
1061 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]];
1062 } else if (i < region2Start) {
1063 htIdx = si.ch[ch].gr[gr].table_select[1];
1064 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]];
1066 htIdx = si.ch[ch].gr[gr].table_select[2];
1067 // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]];
1070 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1071 // if (index >= is_1d.length)
1072 // System.out.println("i0="+i+"/"+(si.ch[ch].gr[gr].big_values<<1)+" Index="+index+" is_1d="+is_1d.length);
1074 is_1d[index++] = x[0];
1075 is_1d[index++] = y[0];
1077 CheckSumHuff = CheckSumHuff + x[0] + y[0];
1078 // System.out.println("x = " + x[0] + " y = " + y[0]);
1083 int htIdx = si.ch[ch].gr[gr].count1table_select + 32;
1084 // h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select + 32];
1085 num_bits = br.hsstell();
1087 while ((num_bits < part2_3_end) && (index < 576)) {
1089 huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
1091 is_1d[index++] = v[0];
1092 is_1d[index++] = w[0];
1093 is_1d[index++] = x[0];
1094 is_1d[index++] = y[0];
1095 CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0];
1096 // System.out.println("v = "+v[0]+" w = "+w[0]);
1097 // System.out.println("x = "+x[0]+" y = "+y[0]);
1098 num_bits = br.hsstell();
1101 if (num_bits > part2_3_end) {
1102 br.rewindNbits(num_bits - part2_3_end);
1106 num_bits = br.hsstell();
1108 // Dismiss stuffing bits
1109 if (num_bits < part2_3_end)
1110 br.hgetbits(part2_3_end - num_bits);
1115 nonzero[ch] = index;
1122 // may not be necessary
1123 for (; index < 576; index++)
1127 @LATTICE("THIS,IN,THISLOC=THIS,RETURNLOC=THIS")
1128 private int huffcodetab_huffman_decoder(@LOC("IN") int h) {
1129 // TODO need to move huffmancodetab implementation here
1136 private void i_stereo_k_values(@LOC("THIS,LayerIIIDecoder.LR") int is_pos,
1137 @LOC("THIS,LayerIIIDecoder.LR") int io_type, @LOC("THIS,LayerIIIDecoder.LR") int i) {
1141 } else if ((is_pos & 1) != 0) {
1142 k[0][i] = io[io_type][(is_pos + 1) >>> 1];
1146 k[1][i] = io[io_type][is_pos >>> 1];
1153 // @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")
1154 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
1156 private void dequantize_sample(
1157 /* @LOC("OUT") float xr[][], */@LOC("THIS,LayerIIIDecoder.SI") int ch,
1158 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1160 // @LOC("GR") gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias!
1161 @LOC("THIS,LayerIIIDecoder.SI1") int cb = 0;
1163 @LOC("THIS,LayerIIIDecoder.SI1") int next_cb_boundary;
1164 @LOC("THIS,LayerIIIDecoder.SI1") int cb_begin = 0;
1165 @LOC("THIS,LayerIIIDecoder.SI1") int cb_width = 0;
1166 @LOC("THIS,LayerIIIDecoder.SI1") float g_gain;
1168 @LOC("THIS,LayerIIIDecoder.SI1") int index = 0;
1169 @LOC("THIS,LayerIIIDecoder.SI1") int t_index;
1170 @LOC("THIS,LayerIIIDecoder.NZ") int j;
1172 // float[][] xr_1d = xr;//substituted xr for instances of xr_1d to decrease
1175 // choose correct scalefactor band per block type, initalize boundary
1177 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1178 if (si.ch[ch].gr[gr].mixed_block_flag != 0)
1179 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1181 cb_width = sfBandIndex[sfreq].s[1];
1182 next_cb_boundary = (cb_width << 2) - cb_width;
1186 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1189 // Compute overall (global) scaling.
1191 g_gain = (float) Math.pow(2.0, (0.25 * (si.ch[ch].gr[gr].global_gain - 210.0)));
1193 for (j = 0; j < nonzero[ch]; j++) {
1194 // Modif E.B 02/22/99
1195 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1196 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1197 if (is_1d[j] == 0) {
1198 ro[ch][quotien][reste] = 0.0f;
1200 @LOC("THIS,LayerIIIDecoder.IS1D") int abv = is_1d[j];
1201 // Pow Array fix (11/17/04)
1202 if (abv < t_43.length) {
1204 ro[ch][quotien][reste] = g_gain * t_43[abv];
1206 if (-abv < t_43.length)
1207 ro[ch][quotien][reste] = -g_gain * t_43[-abv];
1209 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1213 ro[ch][quotien][reste] = g_gain * (float) Math.pow(abv, d43);
1215 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1220 // apply formula per block type
1221 for (j = 0; j < nonzero[ch]; j++) {
1222 // Modif E.B 02/22/99
1223 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1224 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1226 if (index == next_cb_boundary) { /* Adjust critical band boundary */
1227 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1228 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1230 if (index == sfBandIndex[sfreq].l[8]) {
1231 next_cb_boundary = sfBandIndex[sfreq].s[4];
1232 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1234 cb_width = sfBandIndex[sfreq].s[4] - sfBandIndex[sfreq].s[3];
1236 cb_begin = sfBandIndex[sfreq].s[3];
1237 cb_begin = (cb_begin << 2) - cb_begin;
1239 } else if (index < sfBandIndex[sfreq].l[8]) {
1241 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1245 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1246 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1248 cb_begin = sfBandIndex[sfreq].s[cb];
1249 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1250 cb_begin = (cb_begin << 2) - cb_begin;
1255 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1256 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1258 cb_begin = sfBandIndex[sfreq].s[cb];
1259 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1260 cb_begin = (cb_begin << 2) - cb_begin;
1263 } else { // long blocks
1265 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1270 // Do long/short dependent scaling operations
1272 if ((si.ch[ch].gr[gr].window_switching_flag != 0)
1273 && (((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)
1274 && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (j >= 36)))) {
1276 t_index = (index - cb_begin) / cb_width;
1278 * xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) -(0.5
1279 * * (1.0 + gr_info.scalefac_scale) scalefac[ch].s[t_index][cb])));
1281 @LOC("THIS,LayerIIIDecoder.SI1") int idx =
1282 scalefac[ch].s[t_index][cb] << si.ch[ch].gr[gr].scalefac_scale;
1283 idx += (si.ch[ch].gr[gr].subblock_gain[t_index] << 2);
1285 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1287 } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks
1289 * xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale)
1290 * (scalefac[ch].l[cb] + gr_info.preflag * pretab[cb]));
1292 @LOC("THIS,LayerIIIDecoder.SI1") int idx = scalefac[ch].l[cb];
1294 if (si.ch[ch].gr[gr].preflag != 0)
1297 idx = idx << si.ch[ch].gr[gr].scalefac_scale;
1298 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1303 for (j = nonzero[ch]; j < 576; j++) {
1304 // Modif E.B 02/22/99
1305 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1306 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1311 ro[ch][quotien][reste] = 0.0f;
1321 // @LATTICE("THIS<I,I<GR,GR<IN,I*,THISLOC=THIS,GLOBALLOC=IN")
1322 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
1323 private void reorder(/* @LOC("IN") float xr[][], */@LOC("THIS,LayerIIIDecoder.CH0") int ch,
1324 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1325 // the purpose of reordering: move 'short samples' back to their original
1327 // after reorder, the samples are no long ordered by frequency
1329 // the format of input data to reorder:
1330 // three small chunks of 192 samples each are combined to 576 samples
1331 // ordered by frequency
1333 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1335 @LOC("THIS,LayerIIIDecoder.SI1") int index;
1337 @LOC("THIS,LayerIIIDecoder.SI1") int freq;
1338 @LOC("THIS,LayerIIIDecoder.SI1") int freq3;
1339 @LOC("THIS,LayerIIIDecoder.SI1") int sfb;
1340 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start;
1341 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_lines;
1342 @LOC("THIS,LayerIIIDecoder.SI1") int src_line;
1343 @LOC("THIS,LayerIIIDecoder.SI1") int des_line;
1344 // float[][] xr_1d = xr; subbed in xr for xr_1d so as not to create extra
1347 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1349 for (index = 0; index < 576; index++) {
1350 out_1d[index] = 0.0f;
1353 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1354 // NO REORDER FOR LOW 2 SUBBANDS
1355 for (index = 0; index < 36; index++) {
1356 // Modif E.B 02/22/99
1357 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1358 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1359 out_1d[index] = lr[ch][quotien][reste];
1361 // REORDERING FOR REST SWITCHED SHORT
1363 * for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3],
1364 * sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; sfb < 13;
1365 * sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], sfb_lines =
1366 * sfBandIndex[sfreq].s[sfb+1] - sfb_start ) {
1368 for (sfb = 3; sfb < 13; sfb++) {
1369 // System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length);
1370 sfb_start = sfBandIndex[sfreq].s[sfb];
1371 sfb_lines = sfBandIndex[sfreq].s[sfb + 1] - sfb_start;
1373 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start3 = (sfb_start << 2) - sfb_start;
1375 for (freq = 0, freq3 = 0; freq < sfb_lines; freq++, freq3 += 3) {
1377 src_line = sfb_start3 + freq;
1378 des_line = sfb_start3 + freq3;
1379 // Modif E.B 02/22/99
1380 @LOC("THIS,LayerIIIDecoder.SI1") int reste = src_line % SSLIMIT;
1381 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((src_line - reste) / SSLIMIT);
1383 out_1d[des_line] = lr[ch][quotien][reste];
1384 src_line += sfb_lines;
1387 reste = src_line % SSLIMIT;
1388 quotien = (int) ((src_line - reste) / SSLIMIT);
1390 out_1d[des_line] = lr[ch][quotien][reste];
1391 src_line += sfb_lines;
1394 reste = src_line % SSLIMIT;
1395 quotien = (int) ((src_line - reste) / SSLIMIT);
1397 out_1d[des_line] = lr[ch][quotien][reste];
1401 } else { // pure short
1402 for (index = 0; index < 576; index++) {
1403 @LOC("THIS,LayerIIIDecoder.SI1") int j = reorder_table[sfreq][index];
1404 @LOC("THIS,LayerIIIDecoder.SI1") int reste = j % SSLIMIT;
1405 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((j - reste) / SSLIMIT);
1406 out_1d[index] = lr[ch][quotien][reste];
1409 } else { // long blocks
1410 for (index = 0; index < 576; index++) {
1411 // Modif E.B 02/22/99
1412 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1413 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1414 out_1d[index] = lr[ch][quotien][reste];
1424 int[] is_pos = new int[576];
1426 float[] is_ratio = new float[576];
1429 @LATTICE("IO<THIS,THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
1430 private void stereo(Header header, @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1431 @LOC("THIS,LayerIIIDecoder.RO1") int sb;
1432 @LOC("THIS,LayerIIIDecoder.RO1") int ss;
1434 if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][]
1436 for (sb = 0; sb < SBLIMIT; sb++)
1437 for (ss = 0; ss < SSLIMIT; ss += 3) {
1438 lr[0][sb][ss] = ro[0][sb][ss];
1439 lr[0][sb][ss + 1] = ro[0][sb][ss + 1];
1440 lr[0][sb][ss + 2] = ro[0][sb][ss + 2];
1445 // gr_info_s gr_info = (si.ch[0].gr[gr]); remove alias
1446 @LOC("THIS,LayerIIIDecoder.HD1") int mode_ext = header.mode_extension();
1448 @LOC("THIS,LayerIIIDecoder.RO1") int sfb;
1449 @LOC("THIS,LayerIIIDecoder.RO1") int i;
1450 @LOC("THIS,LayerIIIDecoder.RO1") int lines;
1451 @LOC("THIS,LayerIIIDecoder.RO1") int temp;
1452 @LOC("THIS,LayerIIIDecoder.RO1") int temp2;
1454 @LOC("THIS,LayerIIIDecoder.CH0") boolean ms_stereo =
1455 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2) != 0));
1456 @LOC("THIS,LayerIIIDecoder.CH0") boolean i_stereo =
1457 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1) != 0));
1458 @LOC("THIS,LayerIIIDecoder.CH0") boolean lsf =
1459 ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF)); // SZD
1461 @LOC("THIS,LayerIIIDecoder.LR") int io_type = (si.ch[0].gr[gr].scalefac_compress & 1);
1465 for (i = 0; i < 576; i++) {
1472 if ((si.ch[0].gr[gr].window_switching_flag != 0) && (si.ch[0].gr[gr].block_type == 2)) {
1473 if (si.ch[0].gr[gr].mixed_block_flag != 0) {
1475 @LOC("THIS,LayerIIIDecoder.RO1") int max_sfb = 0;
1477 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1478 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1480 for (sfb = 12; sfb >= 3; sfb--) {
1481 i = sfBandIndex[sfreq].s[sfb];
1482 lines = sfBandIndex[sfreq].s[sfb + 1] - i;
1483 i = (i << 2) - i + (j + 1) * lines - 1;
1486 if (ro[1][i / 18][i % 18] != 0.0f) {
1487 // MDM: in java, array access is very slow.
1488 // Is quicker to compute div and mod values.
1489 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1498 } // while (lines > 0)
1500 } // for (sfb=12 ...
1507 temp = sfBandIndex[sfreq].s[sfb];
1508 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1509 i = (temp << 2) - temp + j * sb;
1511 for (; sb > 0; sb--) {
1512 is_pos[i] = scalefac[1].s[j][sfb];
1515 i_stereo_k_values(is_pos[i], io_type, i);
1517 is_ratio[i] = TAN12[is_pos[i]];
1522 } // while (sfb < 12)
1523 sfb = sfBandIndex[sfreq].s[10];
1524 sb = sfBandIndex[sfreq].s[11] - sfb;
1525 sfb = (sfb << 2) - sfb + j * sb;
1526 temp = sfBandIndex[sfreq].s[11];
1527 sb = sfBandIndex[sfreq].s[12] - temp;
1528 i = (temp << 2) - temp + j * sb;
1530 for (; sb > 0; sb--) {
1531 is_pos[i] = is_pos[sfb];
1534 k[0][i] = k[0][sfb];
1535 k[1][i] = k[1][sfb];
1537 is_ratio[i] = is_ratio[sfb];
1540 } // for (; sb > 0 ...
1547 if (ro[1][i][ss] != 0.0f) {
1548 sb = (i << 4) + (i << 1) + ss;
1559 while (sfBandIndex[sfreq].l[i] <= sb)
1562 i = sfBandIndex[sfreq].l[i];
1563 for (; sfb < 8; sfb++) {
1564 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1565 for (; sb > 0; sb--) {
1566 is_pos[i] = scalefac[1].l[sfb];
1569 i_stereo_k_values(is_pos[i], io_type, i);
1571 is_ratio[i] = TAN12[is_pos[i]];
1573 } // for (; sb>0 ...
1574 } // for (; sfb<8 ...
1576 } else { // if (gr_info.mixed_block_flag)
1577 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1578 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1580 for (sfb = 12; sfb >= 0; sfb--) {
1581 temp = sfBandIndex[sfreq].s[sfb];
1582 lines = sfBandIndex[sfreq].s[sfb + 1] - temp;
1583 i = (temp << 2) - temp + (j + 1) * lines - 1;
1586 if (ro[1][i / 18][i % 18] != 0.0f) {
1587 // MDM: in java, array access is very slow.
1588 // Is quicker to compute div and mod values.
1589 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1596 } // while (lines > 0) */
1598 } // for (sfb=12 ...
1601 temp = sfBandIndex[sfreq].s[sfb];
1602 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1603 i = (temp << 2) - temp + j * sb;
1604 for (; sb > 0; sb--) {
1605 is_pos[i] = scalefac[1].s[j][sfb];
1608 i_stereo_k_values(is_pos[i], io_type, i);
1610 is_ratio[i] = TAN12[is_pos[i]];
1612 } // for (; sb>0 ...
1616 temp = sfBandIndex[sfreq].s[10];
1617 temp2 = sfBandIndex[sfreq].s[11];
1619 sfb = (temp << 2) - temp + j * sb;
1620 sb = sfBandIndex[sfreq].s[12] - temp2;
1621 i = (temp2 << 2) - temp2 + j * sb;
1623 for (; sb > 0; sb--) {
1624 is_pos[i] = is_pos[sfb];
1627 k[0][i] = k[0][sfb];
1628 k[1][i] = k[1][sfb];
1630 is_ratio[i] = is_ratio[sfb];
1633 } // for (; sb>0 ...
1636 } else { // if (gr_info.window_switching_flag ...
1641 if (ro[1][i][ss] != 0.0f) {
1642 sb = (i << 4) + (i << 1) + ss;
1653 while (sfBandIndex[sfreq].l[i] <= sb)
1657 i = sfBandIndex[sfreq].l[i];
1658 for (; sfb < 21; sfb++) {
1659 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1660 for (; sb > 0; sb--) {
1661 is_pos[i] = scalefac[1].l[sfb];
1664 i_stereo_k_values(is_pos[i], io_type, i);
1666 is_ratio[i] = TAN12[is_pos[i]];
1670 sfb = sfBandIndex[sfreq].l[20];
1671 for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i < 576); sb--) {
1672 is_pos[i] = is_pos[sfb]; // error here : i >=576
1675 k[0][i] = k[0][sfb];
1676 k[1][i] = k[1][sfb];
1678 is_ratio[i] = is_ratio[sfb];
1681 } // if (gr_info.mixed_block_flag)
1682 } // if (gr_info.window_switching_flag ...
1686 for (sb = 0; sb < SBLIMIT; sb++)
1687 for (ss = 0; ss < SSLIMIT; ss++) {
1688 if (is_pos[i] == 7) {
1690 lr[0][sb][ss] = (ro[0][sb][ss] + ro[1][sb][ss]) * 0.707106781f;
1691 lr[1][sb][ss] = (ro[0][sb][ss] - ro[1][sb][ss]) * 0.707106781f;
1693 lr[0][sb][ss] = ro[0][sb][ss];
1694 lr[1][sb][ss] = ro[1][sb][ss];
1696 } else if (i_stereo) {
1699 lr[0][sb][ss] = ro[0][sb][ss] * k[0][i];
1700 lr[1][sb][ss] = ro[0][sb][ss] * k[1][i];
1702 lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]);
1703 lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i];
1707 * else { System.out.println("Error in stereo processing\n"); }
1719 // @LATTICE("THIS<SRC,SRC<SS,SS<SB18,SB18<SB18LIM,SB18LIM<GR,GR<IN,SB18*,SS*,THISLOC=THIS")
1720 @LATTICE("VAR<THIS,THIS<C,C<IN,THISLOC=THIS,C*")
1721 private void antialias(@LOC("THIS,LayerIIIDecoder.SI") int ch,
1722 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1724 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18;
1725 @LOC("THIS,LayerIIIDecoder.SI1") int ss;
1726 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18lim;
1728 // @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR1") gr_info_s gr_info =
1729 // (si.ch[ch].gr[gr]);
1730 // 31 alias-reduction operations between each pair of sub-bands
1731 // with 8 butterflies between each pair
1733 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)
1734 && !(si.ch[ch].gr[gr].mixed_block_flag != 0))
1737 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0)
1738 && (si.ch[ch].gr[gr].block_type == 2)) {
1744 for (sb18 = 0; sb18 < sb18lim; sb18 += 18) {
1745 for (ss = 0; ss < 8; ss++) {
1746 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx1 = sb18 + 17 - ss;
1747 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx2 = sb18 + 18 + ss;
1748 @LOC("THIS,LayerIIIDecoder.OUT") float bu = out_1d[src_idx1];
1749 @LOC("THIS,LayerIIIDecoder.OUT") float bd = out_1d[src_idx2];
1750 out_1d[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]);
1751 out_1d[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]);
1760 // MDM: tsOutCopy and rawout do not need initializing, so the arrays
1763 float[] tsOutCopy = new float[18];
1765 float[] rawout = new float[36];
1767 @LATTICE("THIS<SB,SB*,THISLOC=THIS")
1768 private void hybrid(@LOC("THIS,LayerIIIDecoder.SI") int ch, @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1770 @LOC("THIS,LayerIIIDecoder.SI1") int bt;
1771 @LOC("SB") int sb18;
1772 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1773 // @LOC("THIS,LayerIIIDecoder.TS") float[] tsOut; //remove alias
1775 // float[][] prvblk;
1777 for (sb18 = 0; sb18 < 576; sb18 += 18) {
1779 ((si.ch[ch].gr[gr].window_switching_flag != 0)
1780 && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (sb18 < 36)) ? 0
1781 : si.ch[ch].gr[gr].block_type;
1784 // Modif E.B 02/22/99
1785 for (@LOC("SB") int cc = 0; cc < 18; cc++)
1786 tsOutCopy[cc] = out_1d[cc + sb18];
1790 for (@LOC("SB") int cc = 0; cc < 18; cc++)
1791 out_1d[cc + sb18] = tsOutCopy[cc];
1795 // prvblk = prevblck; //eliminated unnecessary areas
1797 out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
1798 prevblck[ch][sb18 + 0] = rawout[18];
1799 out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
1800 prevblck[ch][sb18 + 1] = rawout[19];
1801 out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
1802 prevblck[ch][sb18 + 2] = rawout[20];
1803 out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
1804 prevblck[ch][sb18 + 3] = rawout[21];
1805 out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
1806 prevblck[ch][sb18 + 4] = rawout[22];
1807 out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
1808 prevblck[ch][sb18 + 5] = rawout[23];
1809 out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
1810 prevblck[ch][sb18 + 6] = rawout[24];
1811 out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
1812 prevblck[ch][sb18 + 7] = rawout[25];
1813 out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
1814 prevblck[ch][sb18 + 8] = rawout[26];
1815 out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
1816 prevblck[ch][sb18 + 9] = rawout[27];
1817 out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
1818 prevblck[ch][sb18 + 10] = rawout[28];
1819 out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
1820 prevblck[ch][sb18 + 11] = rawout[29];
1821 out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
1822 prevblck[ch][sb18 + 12] = rawout[30];
1823 out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
1824 prevblck[ch][sb18 + 13] = rawout[31];
1825 out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
1826 prevblck[ch][sb18 + 14] = rawout[32];
1827 out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
1828 prevblck[ch][sb18 + 15] = rawout[33];
1829 out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
1830 prevblck[ch][sb18 + 16] = rawout[34];
1831 out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
1832 prevblck[ch][sb18 + 17] = rawout[35];
1839 @LATTICE("THIS<SB,THIS<SS,SB<GLOBAL,SS<GLOBAL,SS*,SB*,THISLOC=THIS,GLOBALLOC=GLOBAL")
1840 private void do_downmix() {
1841 for (@LOC("SB") int sb = 0; sb < SSLIMIT; sb++) {
1842 for (@LOC("SS") int ss = 0; ss < SSLIMIT; ss += 3) {
1843 lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f;
1844 lr[0][sb][ss + 1] = (lr[0][sb][ss + 1] + lr[1][sb][ss + 1]) * 0.5f;
1845 lr[0][sb][ss + 2] = (lr[0][sb][ss + 2] + lr[1][sb][ss + 2]) * 0.5f;
1853 // @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")
1854 // public void inv_mdct(@LOC("SH") float[] in, @LOC("OUT") float[] out,
1855 // @LOC("IN") int block_type) {//remove alias
1857 @LATTICE("THIS,THISLOC=THIS")
1858 public void inv_mdct(@LOC("THIS,LayerIIIDecoder.OUT") int block_type) {
1860 @LOC("THIS,LayerIIIDecoder.OUT") int i;
1862 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_0;
1863 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_1;
1864 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_2;
1865 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_3;
1866 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_4;
1867 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_5;
1868 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_6;
1869 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_7;
1870 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_8;
1871 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_9;
1872 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_10;
1873 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_11;
1874 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_12;
1875 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_13;
1876 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_14;
1877 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_15;
1878 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_16;
1879 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_17;
1896 tmpf_15 = tmpf_16 = tmpf_17 = 0.0f;
1898 if (block_type == 2) {
1902 * Under MicrosoftVM 2922, This causes a GPF, or At best, an
1903 * ArrayIndexOutOfBoundsExceptin. for(int p=0;p<36;p+=9) { out[p] =
1904 * out[p+1] = out[p+2] = out[p+3] = out[p+4] = out[p+5] = out[p+6] =
1905 * out[p+7] = out[p+8] = 0.0f; }
1944 @LOC("THIS,LayerIIIDecoder.OUT") int six_i = 0;
1946 for (i = 0; i < 3; i++) {
1948 // Begin 12 point IDCT
1949 // Input aliasing for 12 pt IDCT
1950 tsOutCopy[15 + i] += tsOutCopy[12 + i];
1951 tsOutCopy[12 + i] += tsOutCopy[9 + i];
1952 tsOutCopy[9 + i] += tsOutCopy[6 + i];
1953 tsOutCopy[6 + i] += tsOutCopy[3 + i];
1954 tsOutCopy[3 + i] += tsOutCopy[0 + i];
1956 // Input aliasing on odd indices (for 6 point IDCT)
1957 tsOutCopy[15 + i] += tsOutCopy[9 + i];
1958 tsOutCopy[9 + i] += tsOutCopy[3 + i];
1960 // 3 point IDCT on even indices
1961 @LOC("THIS,LayerIIIDecoder.OUT") float pp1;
1962 @LOC("THIS,LayerIIIDecoder.OUT") float pp2;
1963 @LOC("THIS,LayerIIIDecoder.OUT") float sum;
1964 pp2 = tsOutCopy[12 + i] * 0.500000000f;
1965 pp1 = tsOutCopy[6 + i] * 0.866025403f;
1966 sum = tsOutCopy[0 + i] + pp2;
1967 tmpf_1 = tsOutCopy[0 + i] - tsOutCopy[12 + i];
1971 // End 3 point IDCT on even indices
1972 // 3 point IDCT on odd indices (for 6 point IDCT)
1973 pp2 = tsOutCopy[15 + i] * 0.500000000f;
1974 pp1 = tsOutCopy[9 + i] * 0.866025403f;
1975 sum = tsOutCopy[3 + i] + pp2;
1976 tmpf_4 = tsOutCopy[3 + i] - tsOutCopy[15 + i];
1979 // End 3 point IDCT on odd indices
1980 // Twiddle factors on odd indices (for 6 point IDCT)
1982 tmpf_3 *= 1.931851653f;
1983 tmpf_4 *= 0.707106781f;
1984 tmpf_5 *= 0.517638090f;
1986 // Output butterflies on 2 3 point IDCT's (for 6 point IDCT)
1987 @LOC("THIS,LayerIIIDecoder.OUT") float save = tmpf_0;
1989 tmpf_5 = save - tmpf_5;
1992 tmpf_4 = save - tmpf_4;
1995 tmpf_3 = save - tmpf_3;
1998 // Twiddle factors on indices (for 12 point IDCT)
2000 tmpf_0 *= 0.504314480f;
2001 tmpf_1 *= 0.541196100f;
2002 tmpf_2 *= 0.630236207f;
2003 tmpf_3 *= 0.821339815f;
2004 tmpf_4 *= 1.306562965f;
2005 tmpf_5 *= 3.830648788f;
2007 // End 12 point IDCT
2009 // Shift to 12 point modified IDCT, multiply by window type 2
2010 tmpf_8 = -tmpf_0 * 0.793353340f;
2011 tmpf_9 = -tmpf_0 * 0.608761429f;
2012 tmpf_7 = -tmpf_1 * 0.923879532f;
2013 tmpf_10 = -tmpf_1 * 0.382683432f;
2014 tmpf_6 = -tmpf_2 * 0.991444861f;
2015 tmpf_11 = -tmpf_2 * 0.130526192f;
2018 tmpf_1 = tmpf_4 * 0.382683432f;
2019 tmpf_2 = tmpf_5 * 0.608761429f;
2021 tmpf_3 = -tmpf_5 * 0.793353340f;
2022 tmpf_4 = -tmpf_4 * 0.923879532f;
2023 tmpf_5 = -tmpf_0 * 0.991444861f;
2025 tmpf_0 *= 0.130526192f;
2027 rawout[six_i + 6] += tmpf_0;
2028 rawout[six_i + 7] += tmpf_1;
2029 rawout[six_i + 8] += tmpf_2;
2030 rawout[six_i + 9] += tmpf_3;
2031 rawout[six_i + 10] += tmpf_4;
2032 rawout[six_i + 11] += tmpf_5;
2033 rawout[six_i + 12] += tmpf_6;
2034 rawout[six_i + 13] += tmpf_7;
2035 rawout[six_i + 14] += tmpf_8;
2036 rawout[six_i + 15] += tmpf_9;
2037 rawout[six_i + 16] += tmpf_10;
2038 rawout[six_i + 17] += tmpf_11;
2044 // input aliasing for 36 point IDCT
2045 tsOutCopy[17] += tsOutCopy[16];
2046 tsOutCopy[16] += tsOutCopy[15];
2047 tsOutCopy[15] += tsOutCopy[14];
2048 tsOutCopy[14] += tsOutCopy[13];
2049 tsOutCopy[13] += tsOutCopy[12];
2050 tsOutCopy[12] += tsOutCopy[11];
2051 tsOutCopy[11] += tsOutCopy[10];
2052 tsOutCopy[10] += tsOutCopy[9];
2053 tsOutCopy[9] += tsOutCopy[8];
2054 tsOutCopy[8] += tsOutCopy[7];
2055 tsOutCopy[7] += tsOutCopy[6];
2056 tsOutCopy[6] += tsOutCopy[5];
2057 tsOutCopy[5] += tsOutCopy[4];
2058 tsOutCopy[4] += tsOutCopy[3];
2059 tsOutCopy[3] += tsOutCopy[2];
2060 tsOutCopy[2] += tsOutCopy[1];
2061 tsOutCopy[1] += tsOutCopy[0];
2063 // 18 point IDCT for odd indices
2064 // input aliasing for 18 point IDCT
2065 tsOutCopy[17] += tsOutCopy[15];
2066 tsOutCopy[15] += tsOutCopy[13];
2067 tsOutCopy[13] += tsOutCopy[11];
2068 tsOutCopy[11] += tsOutCopy[9];
2069 tsOutCopy[9] += tsOutCopy[7];
2070 tsOutCopy[7] += tsOutCopy[5];
2071 tsOutCopy[5] += tsOutCopy[3];
2072 tsOutCopy[3] += tsOutCopy[1];
2074 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0;
2075 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1;
2076 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2;
2077 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3;
2078 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4;
2079 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_;
2080 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_;
2081 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_;
2082 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_;
2083 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0o;
2084 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1o;
2085 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2o;
2086 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3o;
2087 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4o;
2088 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_o;
2089 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_o;
2090 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_o;
2091 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_o;
2093 // Fast 9 Point Inverse Discrete Cosine Transform
2095 // By Francois-Raymond Boyer
2096 // mailto:boyerf@iro.umontreal.ca
2097 // http://www.iro.umontreal.ca/~boyerf
2099 // The code has been optimized for Intel processors
2100 // (takes a lot of time to convert float to and from iternal FPU
2103 // It is a simple "factorization" of the IDCT matrix.
2105 // 9 point IDCT on even indices
2107 // 5 points on odd indices (not realy an IDCT)
2108 @LOC("THIS,LayerIIIDecoder.OUT") float i00 = tsOutCopy[0] + tsOutCopy[0];
2109 @LOC("THIS,LayerIIIDecoder.OUT") float iip12 = i00 + tsOutCopy[12];
2112 iip12 + tsOutCopy[4] * 1.8793852415718f + tsOutCopy[8] * 1.532088886238f + tsOutCopy[16]
2113 * 0.34729635533386f;
2114 tmp1 = i00 + tsOutCopy[4] - tsOutCopy[8] - tsOutCopy[12] - tsOutCopy[12] - tsOutCopy[16];
2116 iip12 - tsOutCopy[4] * 0.34729635533386f - tsOutCopy[8] * 1.8793852415718f
2117 + tsOutCopy[16] * 1.532088886238f;
2119 iip12 - tsOutCopy[4] * 1.532088886238f + tsOutCopy[8] * 0.34729635533386f - tsOutCopy[16]
2121 tmp4 = tsOutCopy[0] - tsOutCopy[4] + tsOutCopy[8] - tsOutCopy[12] + tsOutCopy[16];
2123 // 4 points on even indices
2124 @LOC("THIS,LayerIIIDecoder.OUT") float i66_ = tsOutCopy[6] * 1.732050808f; // Sqrt[3]
2127 tsOutCopy[2] * 1.9696155060244f + i66_ + tsOutCopy[10] * 1.2855752193731f + tsOutCopy[14]
2128 * 0.68404028665134f;
2129 tmp1_ = (tsOutCopy[2] - tsOutCopy[10] - tsOutCopy[14]) * 1.732050808f;
2131 tsOutCopy[2] * 1.2855752193731f - i66_ - tsOutCopy[10] * 0.68404028665134f
2132 + tsOutCopy[14] * 1.9696155060244f;
2134 tsOutCopy[2] * 0.68404028665134f - i66_ + tsOutCopy[10] * 1.9696155060244f
2135 - tsOutCopy[14] * 1.2855752193731f;
2137 // 9 point IDCT on odd indices
2138 // 5 points on odd indices (not realy an IDCT)
2139 @LOC("THIS,LayerIIIDecoder.OUT") float i0 = tsOutCopy[0 + 1] + tsOutCopy[0 + 1];
2140 @LOC("THIS,LayerIIIDecoder.OUT") float i0p12 = i0 + tsOutCopy[12 + 1];
2143 i0p12 + tsOutCopy[4 + 1] * 1.8793852415718f + tsOutCopy[8 + 1] * 1.532088886238f
2144 + tsOutCopy[16 + 1] * 0.34729635533386f;
2146 i0 + tsOutCopy[4 + 1] - tsOutCopy[8 + 1] - tsOutCopy[12 + 1] - tsOutCopy[12 + 1]
2147 - tsOutCopy[16 + 1];
2149 i0p12 - tsOutCopy[4 + 1] * 0.34729635533386f - tsOutCopy[8 + 1] * 1.8793852415718f
2150 + tsOutCopy[16 + 1] * 1.532088886238f;
2152 i0p12 - tsOutCopy[4 + 1] * 1.532088886238f + tsOutCopy[8 + 1] * 0.34729635533386f
2153 - tsOutCopy[16 + 1] * 1.8793852415718f;
2155 (tsOutCopy[0 + 1] - tsOutCopy[4 + 1] + tsOutCopy[8 + 1] - tsOutCopy[12 + 1] + tsOutCopy[16 + 1]) * 0.707106781f; // Twiddled
2157 // 4 points on even indices
2158 @LOC("THIS,LayerIIIDecoder.OUT") float i6_ = tsOutCopy[6 + 1] * 1.732050808f; // Sqrt[3]
2161 tsOutCopy[2 + 1] * 1.9696155060244f + i6_ + tsOutCopy[10 + 1] * 1.2855752193731f
2162 + tsOutCopy[14 + 1] * 0.68404028665134f;
2163 tmp1_o = (tsOutCopy[2 + 1] - tsOutCopy[10 + 1] - tsOutCopy[14 + 1]) * 1.732050808f;
2165 tsOutCopy[2 + 1] * 1.2855752193731f - i6_ - tsOutCopy[10 + 1] * 0.68404028665134f
2166 + tsOutCopy[14 + 1] * 1.9696155060244f;
2168 tsOutCopy[2 + 1] * 0.68404028665134f - i6_ + tsOutCopy[10 + 1] * 1.9696155060244f
2169 - tsOutCopy[14 + 1] * 1.2855752193731f;
2171 // Twiddle factors on odd indices
2173 // Butterflies on 9 point IDCT's
2175 // twiddle factors for 36 point IDCT
2177 @LOC("THIS,LayerIIIDecoder.OUT") float e;
2178 @LOC("THIS,LayerIIIDecoder.OUT") float o;
2180 o = (tmp0o + tmp0_o) * 0.501909918f;
2184 o = (tmp1o + tmp1_o) * 0.517638090f;
2188 o = (tmp2o + tmp2_o) * 0.551688959f;
2192 o = (tmp3o + tmp3_o) * 0.610387294f;
2195 tmpf_4 = tmp4 + tmp4o;
2196 tmpf_13 = tmp4 - tmp4o;
2198 o = (tmp3o - tmp3_o) * 0.871723397f;
2202 o = (tmp2o - tmp2_o) * 1.183100792f;
2206 o = (tmp1o - tmp1_o) * 1.931851653f;
2210 o = (tmp0o - tmp0_o) * 5.736856623f;
2214 // end 36 point IDCT */
2215 // shift to modified IDCT
2216 // win_bt = win[block_type]; //substituted this so that a new area does
2217 // not become created
2219 rawout[0] = -tmpf_9 * win[block_type][0];
2220 rawout[1] = -tmpf_10 * win[block_type][1];
2221 rawout[2] = -tmpf_11 * win[block_type][2];
2222 rawout[3] = -tmpf_12 * win[block_type][3];
2223 rawout[4] = -tmpf_13 * win[block_type][4];
2224 rawout[5] = -tmpf_14 * win[block_type][5];
2225 rawout[6] = -tmpf_15 * win[block_type][6];
2226 rawout[7] = -tmpf_16 * win[block_type][7];
2227 rawout[8] = -tmpf_17 * win[block_type][8];
2228 rawout[9] = tmpf_17 * win[block_type][9];
2229 rawout[10] = tmpf_16 * win[block_type][10];
2230 rawout[11] = tmpf_15 * win[block_type][11];
2231 rawout[12] = tmpf_14 * win[block_type][12];
2232 rawout[13] = tmpf_13 * win[block_type][13];
2233 rawout[14] = tmpf_12 * win[block_type][14];
2234 rawout[15] = tmpf_11 * win[block_type][15];
2235 rawout[16] = tmpf_10 * win[block_type][16];
2236 rawout[17] = tmpf_9 * win[block_type][17];
2237 rawout[18] = tmpf_8 * win[block_type][18];
2238 rawout[19] = tmpf_7 * win[block_type][19];
2239 rawout[20] = tmpf_6 * win[block_type][20];
2240 rawout[21] = tmpf_5 * win[block_type][21];
2241 rawout[22] = tmpf_4 * win[block_type][22];
2242 rawout[23] = tmpf_3 * win[block_type][23];
2243 rawout[24] = tmpf_2 * win[block_type][24];
2244 rawout[25] = tmpf_1 * win[block_type][25];
2245 rawout[26] = tmpf_0 * win[block_type][26];
2246 rawout[27] = tmpf_0 * win[block_type][27];
2247 rawout[28] = tmpf_1 * win[block_type][28];
2248 rawout[29] = tmpf_2 * win[block_type][29];
2249 rawout[30] = tmpf_3 * win[block_type][30];
2250 rawout[31] = tmpf_4 * win[block_type][31];
2251 rawout[32] = tmpf_5 * win[block_type][32];
2252 rawout[33] = tmpf_6 * win[block_type][33];
2253 rawout[34] = tmpf_7 * win[block_type][34];
2254 rawout[35] = tmpf_8 * win[block_type][35];
2260 private int counter = 0;
2261 private static final int SSLIMIT = 18;
2262 private static final int SBLIMIT = 32;
2264 // Size of the table of whole numbers raised to 4/3 power.
2265 // This may be adjusted for performance without any problems.
2266 // public static final int POW_TABLE_LIMIT=512;
2268 /************************************************************/
2270 /************************************************************/
2284 @LATTICE("THIS<IN,THISLOC=THIS")
2285 public SBI(@DELEGATE @LOC("IN") int[] thel, @DELEGATE @LOC("IN") int[] thes) {
2292 static class gr_info_s {
2294 public int part2_3_length = 0;
2296 public int big_values = 0;
2298 public int global_gain = 0;
2300 public int scalefac_compress = 0;
2302 public int window_switching_flag = 0;
2304 public int block_type = 0;
2306 public int mixed_block_flag = 0;
2308 public int[] table_select;
2310 public int[] subblock_gain;
2312 public int region0_count = 0;
2314 public int region1_count = 0;
2316 public int preflag = 0;
2318 public int scalefac_scale = 0;
2320 public int count1table_select = 0;
2325 public gr_info_s() {
2326 table_select = new int[3];
2327 subblock_gain = new int[3];
2331 @LATTICE("GR2<GR1,GR1<GR,GR2*")
2332 static class temporaire {
2336 public gr_info_s[] gr;
2341 public temporaire() {
2343 gr = new gr_info_s[2];
2344 gr[0] = new gr_info_s();
2345 gr[1] = new gr_info_s();
2350 static class III_side_info_t {
2353 public int main_data_begin = 0;
2355 public int private_bits = 0;
2357 public temporaire[] ch;
2362 public III_side_info_t() {
2363 ch = new temporaire[2];
2364 ch[0] = new temporaire();
2365 ch[1] = new temporaire();
2370 static class temporaire2 {
2372 public int[] l; /* [cb] */
2374 public int[][] s; /* [window][cb] */
2379 public temporaire2() {
2385 // class III_scalefac_t
2387 // public temporaire2[] tab;
2389 // * Dummy Constructor
2391 // public III_scalefac_t()
2393 // tab = new temporaire2[2];
2397 private static final int slen[][] = { { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
2398 { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 } };
2400 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,
2404 private SBI[] sfBandIndex; // Init in the constructor.
2406 public static final float two_to_negative_half_pow[] = { 1.0000000000E+00f, 7.0710678119E-01f,
2407 5.0000000000E-01f, 3.5355339059E-01f, 2.5000000000E-01f, 1.7677669530E-01f,
2408 1.2500000000E-01f, 8.8388347648E-02f, 6.2500000000E-02f, 4.4194173824E-02f,
2409 3.1250000000E-02f, 2.2097086912E-02f, 1.5625000000E-02f, 1.1048543456E-02f,
2410 7.8125000000E-03f, 5.5242717280E-03f, 3.9062500000E-03f, 2.7621358640E-03f,
2411 1.9531250000E-03f, 1.3810679320E-03f, 9.7656250000E-04f, 6.9053396600E-04f,
2412 4.8828125000E-04f, 3.4526698300E-04f, 2.4414062500E-04f, 1.7263349150E-04f,
2413 1.2207031250E-04f, 8.6316745750E-05f, 6.1035156250E-05f, 4.3158372875E-05f,
2414 3.0517578125E-05f, 2.1579186438E-05f, 1.5258789062E-05f, 1.0789593219E-05f,
2415 7.6293945312E-06f, 5.3947966094E-06f, 3.8146972656E-06f, 2.6973983047E-06f,
2416 1.9073486328E-06f, 1.3486991523E-06f, 9.5367431641E-07f, 6.7434957617E-07f,
2417 4.7683715820E-07f, 3.3717478809E-07f, 2.3841857910E-07f, 1.6858739404E-07f,
2418 1.1920928955E-07f, 8.4293697022E-08f, 5.9604644775E-08f, 4.2146848511E-08f,
2419 2.9802322388E-08f, 2.1073424255E-08f, 1.4901161194E-08f, 1.0536712128E-08f,
2420 7.4505805969E-09f, 5.2683560639E-09f, 3.7252902985E-09f, 2.6341780319E-09f,
2421 1.8626451492E-09f, 1.3170890160E-09f, 9.3132257462E-10f, 6.5854450798E-10f,
2422 4.6566128731E-10f, 3.2927225399E-10f };
2424 public static final float t_43[] = create_t_43();
2427 static private float[] create_t_43() {
2428 @LOC("OUT") float[] t43 = new float[8192];
2429 final double d43 = (4.0 / 3.0);
2431 for (@LOC("SH") int i = 0; i < 8192; i++) {
2432 t43[i] = (float) Math.pow(i, d43);
2437 public static final float io[][] = {
2438 { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f,
2439 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f,
2440 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f,
2441 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f,
2442 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f,
2443 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f,
2444 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f,
2445 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f },
2446 { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f,
2447 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f,
2448 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f,
2449 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f,
2450 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f,
2451 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f,
2452 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f,
2453 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } };
2455 public static final float TAN12[] = { 0.0f, 0.26794919f, 0.57735027f, 1.0f, 1.73205081f,
2456 3.73205081f, 9.9999999e10f, -3.73205081f, -1.73205081f, -1.0f, -0.57735027f, -0.26794919f,
2457 0.0f, 0.26794919f, 0.57735027f, 1.0f };
2459 // REVIEW: in java, the array lookup may well be slower than
2460 // the actual calculation
2463 * private static final int ss_div[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2464 * 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,
2465 * 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,
2466 * 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,
2467 * 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,
2468 * 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,
2469 * 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,
2470 * 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
2471 * 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
2472 * 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
2473 * 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
2474 * 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14,
2475 * 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
2476 * 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
2477 * 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
2478 * 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
2479 * 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
2480 * 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
2481 * 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
2482 * 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
2483 * 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
2484 * 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25,
2485 * 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26,
2486 * 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27,
2487 * 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
2488 * 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
2489 * 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30,
2490 * 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31,
2491 * 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 };
2493 * // 576 % 18 private static final int ss_mod[] = { 0, 1, 2, 3, 4, 5, 6, 7,
2494 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2495 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2496 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2497 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2498 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2499 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2500 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2501 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2502 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2503 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2504 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2505 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2506 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2507 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2508 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2509 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2510 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2511 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2512 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2513 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2514 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2515 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2516 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2517 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2518 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2519 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2520 * 12, 13, 14, 15, 16, 17 };
2523 private static/* final */int reorder_table[][]/* = loadReorderTable() */; // SZD:
2532 * Loads the data for the reorder
2535 * private static int[][] loadReorderTable() // SZD: table will be generated {
2536 * try { Class elemType = int[][].class.getComponentType(); Object o =
2537 * JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6);
2538 * return (int[][])o; } catch (IOException ex) { throw new
2539 * ExceptionInInitializerError(ex); } }
2541 @LATTICE("OUT<J,J<I,I<SE,I<WIN,SE<SF,SE<SFB,WIN<SFB,J*,I*,WIN*,SFB*")
2542 static int[] reorder(@LOC("SF") int scalefac_band[]) { // SZD: converted from
2544 @LOC("J") int j = 0;
2545 @LOC("OUT") int ix[] = new int[576];
2546 for (int sfb = 0; sfb < 13; sfb++) {
2547 int start = scalefac_band[sfb];
2548 int end = scalefac_band[sfb + 1];
2549 for (int window = 0; window < 3; window++)
2550 for (int i = start; i < end; i++)
2551 ix[3 * i + window] = j++;
2557 * static final int reorder_table_data[][]; = { { 0, 4, 8, 1, 5, 9, 2, 6, 10,
2558 * 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25,
2559 * 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45,
2560 * 51, 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, 63, 69,
2561 * 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, 90, 75, 83, 91, 76,
2562 * 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, 96,106,116, 97,107,117,
2563 * 98,108,118, 99,109,119,100,110,120,101,
2564 * 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140,
2565 * 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159,
2566 * 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137,
2567 * 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188,
2568 * 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211,
2569 * 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181,
2570 * 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248,
2571 * 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279,
2572 * 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233,
2573 * 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264,
2574 * 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295,
2575 * 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301,
2576 * 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338,
2577 * 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375,
2578 * 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317,
2579 * 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354,
2580 * 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391,
2581 * 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397,
2582 * 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444,
2583 * 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491,
2584 * 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413,
2585 * 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460,
2586 * 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507,
2587 * 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429,
2588 * 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476,
2589 * 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559,
2590 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2591 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2592 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2593 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2594 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2595 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2596 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2597 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2598 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2599 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2600 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2601 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2602 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2603 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2604 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2605 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2606 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2607 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2608 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2609 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2610 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2611 * 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346,
2612 * 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383,
2613 * 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325,
2614 * 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362,
2615 * 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399,
2616 * 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341,
2617 * 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454,
2618 * 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503,
2619 * 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421,
2620 * 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470,
2621 * 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519,
2622 * 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437,
2623 * 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486,
2624 * 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535,
2625 * 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541,
2626 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2627 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, { 0, 4,
2628 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2629 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2630 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2631 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2632 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2633 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2634 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2635 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2636 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2637 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2638 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2639 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2640 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2641 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2642 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2643 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2644 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2645 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2646 * 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344,
2647 * 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379,
2648 * 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325,
2649 * 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360,
2650 * 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395,
2651 * 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341,
2652 * 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446,
2653 * 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491,
2654 * 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417,
2655 * 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462,
2656 * 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507,
2657 * 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433,
2658 * 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478,
2659 * 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559,
2660 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2661 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2662 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2663 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2664 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2665 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2666 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2667 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, 92,102,112,
2668 * 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, 107,117, 98,108,118,
2669 * 99,109,119,120,132,144,121,133,145,122,134,
2670 * 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151,
2671 * 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157,
2672 * 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176,
2673 * 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195,
2674 * 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201,
2675 * 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224,
2676 * 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247,
2677 * 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253,
2678 * 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280,
2679 * 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307,
2680 * 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269,
2681 * 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348,
2682 * 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383,
2683 * 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329,
2684 * 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364,
2685 * 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399,
2686 * 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345,
2687 * 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466,
2688 * 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527,
2689 * 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421,
2690 * 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482,
2691 * 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543,
2692 * 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437,
2693 * 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498,
2694 * 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559,
2695 * 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453,
2696 * 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514,
2697 * 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, { 0, 4,
2698 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2699 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2700 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2701 * 58, 64, 53, 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76,
2702 * 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, 88, 98,108,
2703 * 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93,
2704 * 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130,
2705 * 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147,
2706 * 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153,
2707 * 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172,
2708 * 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191,
2709 * 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197,
2710 * 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218,
2711 * 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239,
2712 * 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245,
2713 * 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270,
2714 * 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295,
2715 * 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301,
2716 * 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332,
2717 * 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363,
2718 * 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317,
2719 * 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348,
2720 * 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511,
2721 * 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385,
2722 * 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456,
2723 * 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527,
2724 * 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401,
2725 * 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472,
2726 * 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543,
2727 * 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417,
2728 * 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488,
2729 * 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559,
2730 * 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433,
2731 * 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504,
2732 * 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, { 0, 4,
2733 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2734 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2735 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2736 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2737 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, 92,104,116,
2738 * 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, 109,121, 98,110,122,
2739 * 99,111,123,100,112,124,101,113,125,126,142,
2740 * 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163,
2741 * 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137,
2742 * 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194,
2743 * 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219,
2744 * 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185,
2745 * 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210,
2746 * 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287,
2747 * 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241,
2748 * 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272,
2749 * 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303,
2750 * 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257,
2751 * 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348,
2752 * 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387,
2753 * 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325,
2754 * 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364,
2755 * 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403,
2756 * 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341,
2757 * 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456,
2758 * 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503,
2759 * 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425,
2760 * 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472,
2761 * 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519,
2762 * 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441,
2763 * 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488,
2764 * 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535,
2765 * 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541,
2766 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2767 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} };
2770 private static final float cs[] = { 0.857492925712f, 0.881741997318f, 0.949628649103f,
2771 0.983314592492f, 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f };
2773 private static final float ca[] = { -0.5144957554270f, -0.4717319685650f, -0.3133774542040f,
2774 -0.1819131996110f, -0.0945741925262f, -0.0409655828852f, -0.0141985685725f,
2775 -0.00369997467375f };
2777 /************************************************************/
2778 /* END OF L3TABLE */
2779 /************************************************************/
2781 /************************************************************/
2783 /************************************************************/
2785 /***************************************************************/
2787 /***************************************************************/
2789 /***************************************************************/
2791 /***************************************************************/
2792 public static final float win[][] = {
2793 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2794 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2795 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2796 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2797 -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2798 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2799 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2800 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2801 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f },
2803 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2804 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2805 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2806 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2807 -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f,
2808 -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f,
2809 -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f,
2810 -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f,
2811 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2813 { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f,
2814 -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f,
2815 -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f,
2816 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2817 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2818 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2819 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2820 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2821 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2823 { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2824 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f,
2825 -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f,
2826 -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f,
2827 -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2828 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2829 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2830 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2831 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } };
2833 /***************************************************************/
2834 /* END OF INV_MDCT */
2835 /***************************************************************/
2848 @LATTICE("THIS<IN,THISLOC=THIS")
2849 public Sftable(@DELEGATE @LOC("IN") int[] thel, @DELEGATE @LOC("IN") int[] thes) {
2856 public Sftable sftable;
2858 public static final int nr_of_sfb_block[][][] = {
2859 { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } },
2860 { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } },
2861 { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } },
2862 { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } },
2863 { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } },
2864 { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } } };