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;
115 // REVIEW: these constructor arguments should be moved to the
116 // decodeFrame() method, where possible, so that one
117 @LATTICE("THIS<VAR,THIS<I,THIS<J,J<CH,I*,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
118 public LayerIIIDecoder(@LOC("VAR") Header header0, @LOC("VAR") SynthesisFilter filtera,
119 @LOC("VAR") SynthesisFilter filterb, @LOC("VAR") Obuffer buffer0, @LOC("VAR") int which_ch0) {
121 huffcodetab.inithuff();
122 is_1d = new int[SBLIMIT * SSLIMIT + 4];
123 ro = new float[2][SBLIMIT][SSLIMIT];
124 lr = new float[2][SBLIMIT][SSLIMIT];
125 out_1d = new float[SBLIMIT * SSLIMIT];
126 prevblck = new float[2][SBLIMIT * SSLIMIT];
127 k = new float[2][SBLIMIT * SSLIMIT];
128 nonzero = new int[2];
130 // removes unnecessary aliases
132 // III_scalefac_t = new temporaire2[2];
133 // III_scalefac_t[0] = new temporaire2();
134 // III_scalefac_t[1] = new temporaire2();
135 // scalefac = III_scalefac_t;
137 scalefac = new temporaire2[2];
138 scalefac[0] = new temporaire2();
139 scalefac[1] = new temporaire2();
143 sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
144 @LOC("VAR") int[] l0 =
145 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
147 @LOC("VAR") int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192 };
148 @LOC("VAR") int[] l1 =
149 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 330, 394,
151 @LOC("VAR") int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192 };
152 @LOC("VAR") int[] l2 =
153 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
155 @LOC("VAR") int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
157 @LOC("VAR") int[] l3 =
158 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342,
160 @LOC("VAR") int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192 };
161 @LOC("VAR") int[] l4 =
162 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330,
164 @LOC("VAR") int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192 };
165 @LOC("VAR") int[] l5 =
166 { 0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448,
168 @LOC("VAR") int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192 };
170 @LOC("VAR") int[] l6 =
171 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
173 @LOC("VAR") int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
174 @LOC("VAR") int[] l7 =
175 { 0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396,
177 @LOC("VAR") int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
178 @LOC("VAR") int[] l8 =
179 { 0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568,
180 570, 572, 574, 576 };
181 @LOC("VAR") int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 };
183 sfBandIndex[0] = new SBI(l0, s0);
184 sfBandIndex[1] = new SBI(l1, s1);
185 sfBandIndex[2] = new SBI(l2, s2);
187 sfBandIndex[3] = new SBI(l3, s3);
188 sfBandIndex[4] = new SBI(l4, s4);
189 sfBandIndex[5] = new SBI(l5, s5);
191 sfBandIndex[6] = new SBI(l6, s6);
192 sfBandIndex[7] = new SBI(l7, s7);
193 sfBandIndex[8] = new SBI(l8, s8);
194 // END OF L3TABLE INIT
196 if (reorder_table == null) { // SZD: generate LUT
197 reorder_table = new int[9][];
198 for (@LOC("I") int i = 0; i < 9; i++)
199 reorder_table[i] = reorder(sfBandIndex[i].s);
203 @LOC("VAR") int[] ll0 = { 0, 6, 11, 16, 21 };
204 @LOC("VAR") int[] ss0 = { 0, 6, 12 };
205 sftable = new Sftable(ll0, ss0);
209 scalefac_buffer = new int[54];
210 // END OF scalefac_buffer
216 which_channels = which_ch0;
219 channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
220 max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
223 header.sample_frequency()
224 + ((header.version() == Header.MPEG1) ? 3 : (header.version() == Header.MPEG25_LSF) ? 6
228 switch (which_channels) {
229 case OutputChannels.LEFT_CHANNEL:
230 case OutputChannels.DOWNMIX_CHANNELS:
231 first_channel = last_channel = 0;
234 case OutputChannels.RIGHT_CHANNEL:
235 first_channel = last_channel = 1;
238 case OutputChannels.BOTH_CHANNELS:
245 first_channel = last_channel = 0;
248 for (@LOC("CH") int ch = 0; ch < 2; ch++)
249 for (@LOC("J") int j = 0; j < 576; j++)
250 prevblck[ch][j] = 0.0f;
252 nonzero[0] = nonzero[1] = 576;
254 br = new BitReserve();
255 si = new III_side_info_t();
259 * Notify decoder that a seek is being made.
261 @LATTICE("THIS<J,J<CH,J*,CH*,THISLOC=THIS,GLOBALLOC=THIS")
262 public void seek_notify() {
264 for (@LOC("CH") int ch = 0; ch < 2; ch++)
265 for (@LOC("J") int j = 0; j < 576; j++)
266 prevblck[ch][j] = 0.0f;
267 br = new BitReserve();
270 public void decodeFrame() {
275 * Decode one frame, filling the buffer with the output samples.
278 // subband samples are buffered and passed to the
279 // SynthesisFilter in one go.
281 private float[] samples1 = new float[32];
283 private float[] samples2 = new float[32];
286 * location hierarchy of decode() {header} {stream} {si} {br, flush_main,
287 * main_data_end,frame_start,nSlots,bytes_to_discard}* {gr,max_gr} // granule
288 * {ch,channels,first_channel, last_channel, which_channels} // channel
289 * {part2_start} {sb18, ss} {out_1d}* {sb}* {samples1,sample2}
292 // @LATTICE("BYTE<THIS,THIS<MAIN,MAIN<VAR,THIS<GR,GR<VAR,BYTE*,GR*,THISLOC=THIS,GLOBALLOC=VAR")
293 @LATTICE("VAR<THIS,C<THIS,THIS<IN,THISLOC=THIS,C*,VAR*")
294 public void decode() {
296 @LOC("THIS,LayerIIIDecoder.HD1") int nSlots = header.slots();
298 @LOC("THIS,LayerIIIDecoder.CH0") int gr;
299 @LOC("THIS,LayerIIIDecoder.CH0") int ch;
301 @LOC("THIS,LayerIIIDecoder.CH0") int ss;
302 @LOC("THIS,LayerIIIDecoder.CH0") int sb;
303 @LOC("THIS,LayerIIIDecoder.CH0") int sb18;
305 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int main_data_end;
306 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int flush_main;
308 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int bytes_to_discard;
311 // modifications for linear type
312 get_side_info(header.getSideInfoBuffer());
313 br = header.getBitReserve();
315 // here 'gr' and 'max_gr' should be higher than 'ch','channels', and more
316 for (gr = 0; gr < max_gr; gr++) { // two granules per channel
317 // in the loop body, access set={part2_start}
319 // 'ch', 'channels' should be higher than all locs in the below body
320 for (ch = 0; ch < channels; ch++) {
321 @LOC("THIS,LayerIIIDecoder.BR,BitReserve.BIT") int part2_start = br.hsstell(); // part2_start
325 // grab scale factors from the main data.
326 // following the scale factors is the actual compressed data
327 if (header.version() == Header.MPEG1)
328 get_scale_factors(ch, gr); // no need to care from this side
329 // here move scale factor data from 'br' buffer to 'scalefac' field
331 // MPEG-2 LSF, SZD: MPEG-2.5 LSF
332 get_LSF_scale_factors(ch, gr); // no need to care from this side
334 // here, decoding the compressed audio data
335 huffman_decode(ch, gr); // no need to care from this side
336 // System.out.println("CheckSum HuffMan = " + CheckSumHuff);
337 dequantize_sample(/* ro[ch], */ch, gr); // no need to care from this
341 stereo(gr); // no need to care from this side
343 if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) {
347 for (ch = first_channel; ch <= last_channel; ch++) { // 'ch' and
352 // read set= lr,ch,gr,out_1d, sb18, ss, SSLIMIT, out_1d
355 reorder(/* lr[ch], */ch, gr);
357 // for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d +
359 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
363 // for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d +
365 // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
367 for (sb18 = 18; sb18 < 576; sb18 += 36) {
368 // sb18 > ss, SSLIMIT, out1d
369 // Frequency inversion
370 for (ss = 1; ss < SSLIMIT; ss += 2) {
371 // 'ss','SSLIMIT' > out_1d
372 out_1d[sb18 + ss] = -out_1d[sb18 + ss]; // out1d*
376 // 'ch', 'which_channels' should be higher than if/else body!
377 // location set written by if/else body
378 // = {samples1, samples2, filter1, filter2}
379 if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) {
380 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
382 for (sb18 = 0; sb18 < 576; sb18 += 18) {
383 samples1[sb] = out_1d[sb18 + ss]; // out_1d > samples1
384 // filter1.input_sample(out_1d[sb18+ss], sb);
385 sb++; // sb should be loc*
387 filter1.input_samples(samples1);
388 filter1.calculate_pcm_samples(buffer);
391 for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
393 for (sb18 = 0; sb18 < 576; sb18 += 18) {
394 samples2[sb] = out_1d[sb18 + ss]; // out_1d > samples2
395 // filter2.input_sample(out_1d[sb18+ss], sb);
398 filter2.input_samples(samples2);
399 filter2.calculate_pcm_samples(buffer);
406 // System.out.println("Counter = ................................."+counter);
407 // if (counter < 609)
409 counter++; // count should be loc*
410 buffer.write_buffer(1); // buffer!!!
412 // else if (counter == 609)
424 * Reads the side info from the stream, assuming the entire. frame has been
425 * read already. Mono : 136 bits (= 17 bytes) Stereo : 256 bits (= 32 bytes)
427 private boolean get_side_info(SideInfoBuffer sib) {
429 // System.out.println("#get_side_info");
430 if (header.version() == Header.MPEG1) {
432 si.main_data_begin = sib.get_bits(9);
434 si.private_bits = sib.get_bits(5);
436 si.private_bits = sib.get_bits(3);
438 for (ch = 0; ch < channels; ch++) {
439 si.ch[ch].scfsi[0] = sib.get_bits(1);
440 si.ch[ch].scfsi[1] = sib.get_bits(1);
441 si.ch[ch].scfsi[2] = sib.get_bits(1);
442 si.ch[ch].scfsi[3] = sib.get_bits(1);
445 // System.out.println("BEFORE GR,CH");
447 for (gr = 0; gr < 2; gr++) {
448 // System.out.println("GR=" + gr);
449 for (ch = 0; ch < channels; ch++) {
450 // System.out.println("CH");
451 si.ch[ch].gr[gr].part2_3_length = sib.get_bits(12);
452 si.ch[ch].gr[gr].big_values = sib.get_bits(9);
453 si.ch[ch].gr[gr].global_gain = sib.get_bits(8);
454 si.ch[ch].gr[gr].scalefac_compress = sib.get_bits(4);
455 si.ch[ch].gr[gr].window_switching_flag = sib.get_bits(1);
456 if ((si.ch[ch].gr[gr].window_switching_flag) != 0) {
457 si.ch[ch].gr[gr].block_type = sib.get_bits(2);
458 si.ch[ch].gr[gr].mixed_block_flag = sib.get_bits(1);
460 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
461 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
463 si.ch[ch].gr[gr].subblock_gain[0] = sib.get_bits(3);
464 si.ch[ch].gr[gr].subblock_gain[1] = sib.get_bits(3);
465 si.ch[ch].gr[gr].subblock_gain[2] = sib.get_bits(3);
467 // Set region_count parameters since they are implicit
470 if (si.ch[ch].gr[gr].block_type == 0) {
471 // Side info bad: block_type == 0 in split block
473 } else if (si.ch[ch].gr[gr].block_type == 2 && si.ch[ch].gr[gr].mixed_block_flag == 0) {
474 si.ch[ch].gr[gr].region0_count = 8;
476 si.ch[ch].gr[gr].region0_count = 7;
478 si.ch[ch].gr[gr].region1_count = 20 - si.ch[ch].gr[gr].region0_count;
480 si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
481 si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
482 si.ch[ch].gr[gr].table_select[2] = sib.get_bits(5);
483 si.ch[ch].gr[gr].region0_count = sib.get_bits(4);
484 si.ch[ch].gr[gr].region1_count = sib.get_bits(3);
485 si.ch[ch].gr[gr].block_type = 0;
487 si.ch[ch].gr[gr].preflag = sib.get_bits(1);
488 si.ch[ch].gr[gr].scalefac_scale = sib.get_bits(1);
489 si.ch[ch].gr[gr].count1table_select = sib.get_bits(1);
493 } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF
495 si.main_data_begin = sib.get_bits(8);
497 si.private_bits = sib.get_bits(1);
499 si.private_bits = sib.get_bits(2);
501 for (ch = 0; ch < channels; ch++) {
503 si.ch[ch].gr[0].part2_3_length = sib.get_bits(12);
504 si.ch[ch].gr[0].big_values = sib.get_bits(9);
505 si.ch[ch].gr[0].global_gain = sib.get_bits(8);
506 si.ch[ch].gr[0].scalefac_compress = sib.get_bits(9);
507 si.ch[ch].gr[0].window_switching_flag = sib.get_bits(1);
509 if ((si.ch[ch].gr[0].window_switching_flag) != 0) {
511 si.ch[ch].gr[0].block_type = sib.get_bits(2);
512 si.ch[ch].gr[0].mixed_block_flag = sib.get_bits(1);
513 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
514 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
516 si.ch[ch].gr[0].subblock_gain[0] = sib.get_bits(3);
517 si.ch[ch].gr[0].subblock_gain[1] = sib.get_bits(3);
518 si.ch[ch].gr[0].subblock_gain[2] = sib.get_bits(3);
520 // Set region_count parameters since they are implicit in
523 if (si.ch[ch].gr[0].block_type == 0) {
524 // Side info bad: block_type == 0 in split block
526 } else if (si.ch[ch].gr[0].block_type == 2 && si.ch[ch].gr[0].mixed_block_flag == 0) {
527 si.ch[ch].gr[0].region0_count = 8;
529 si.ch[ch].gr[0].region0_count = 7;
530 si.ch[ch].gr[0].region1_count = 20 - si.ch[ch].gr[0].region0_count;
534 si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
535 si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
536 si.ch[ch].gr[0].table_select[2] = sib.get_bits(5);
537 si.ch[ch].gr[0].region0_count = sib.get_bits(4);
538 si.ch[ch].gr[0].region1_count = sib.get_bits(3);
539 si.ch[ch].gr[0].block_type = 0;
542 si.ch[ch].gr[0].scalefac_scale = sib.get_bits(1);
543 si.ch[ch].gr[0].count1table_select = sib.get_bits(1);
544 } // for(ch=0; ch<channels; ch++)
545 } // if (header.version() == MPEG1)
552 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
553 private void get_scale_factors(@LOC("THIS,LayerIIIDecoder.CH0") int ch,
554 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
556 // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias
558 @LOC("THIS,LayerIIIDecoder.NS") int sfb;
559 @LOC("THIS,LayerIIIDecoder.NS") int window;
560 @LOC("THIS,LayerIIIDecoder.NS") int scale_comp = si.ch[ch].gr[gr].scalefac_compress;
561 @LOC("THIS,LayerIIIDecoder.NS") int length0 = slen[0][scale_comp];
562 @LOC("THIS,LayerIIIDecoder.NS") int length1 = slen[1][scale_comp];
564 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
565 if ((si.ch[ch].gr[gr].mixed_block_flag) != 0) { // MIXED
566 for (sfb = 0; sfb < 8; sfb++)
567 scalefac[ch].l[sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
568 for (sfb = 3; sfb < 6; sfb++)
569 for (window = 0; window < 3; window++)
570 scalefac[ch].s[window][sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
571 for (sfb = 6; sfb < 12; sfb++)
572 for (window = 0; window < 3; window++)
573 scalefac[ch].s[window][sfb] = br.hgetbits(slen[1][si.ch[ch].gr[gr].scalefac_compress]);
574 for (sfb = 12, window = 0; window < 3; window++)
575 scalefac[ch].s[window][sfb] = 0;
579 scalefac[ch].s[0][0] = br.hgetbits(length0);
580 scalefac[ch].s[1][0] = br.hgetbits(length0);
581 scalefac[ch].s[2][0] = br.hgetbits(length0);
582 scalefac[ch].s[0][1] = br.hgetbits(length0);
583 scalefac[ch].s[1][1] = br.hgetbits(length0);
584 scalefac[ch].s[2][1] = br.hgetbits(length0);
585 scalefac[ch].s[0][2] = br.hgetbits(length0);
586 scalefac[ch].s[1][2] = br.hgetbits(length0);
587 scalefac[ch].s[2][2] = br.hgetbits(length0);
588 scalefac[ch].s[0][3] = br.hgetbits(length0);
589 scalefac[ch].s[1][3] = br.hgetbits(length0);
590 scalefac[ch].s[2][3] = br.hgetbits(length0);
591 scalefac[ch].s[0][4] = br.hgetbits(length0);
592 scalefac[ch].s[1][4] = br.hgetbits(length0);
593 scalefac[ch].s[2][4] = br.hgetbits(length0);
594 scalefac[ch].s[0][5] = br.hgetbits(length0);
595 scalefac[ch].s[1][5] = br.hgetbits(length0);
596 scalefac[ch].s[2][5] = br.hgetbits(length0);
597 scalefac[ch].s[0][6] = br.hgetbits(length1);
598 scalefac[ch].s[1][6] = br.hgetbits(length1);
599 scalefac[ch].s[2][6] = br.hgetbits(length1);
600 scalefac[ch].s[0][7] = br.hgetbits(length1);
601 scalefac[ch].s[1][7] = br.hgetbits(length1);
602 scalefac[ch].s[2][7] = br.hgetbits(length1);
603 scalefac[ch].s[0][8] = br.hgetbits(length1);
604 scalefac[ch].s[1][8] = br.hgetbits(length1);
605 scalefac[ch].s[2][8] = br.hgetbits(length1);
606 scalefac[ch].s[0][9] = br.hgetbits(length1);
607 scalefac[ch].s[1][9] = br.hgetbits(length1);
608 scalefac[ch].s[2][9] = br.hgetbits(length1);
609 scalefac[ch].s[0][10] = br.hgetbits(length1);
610 scalefac[ch].s[1][10] = br.hgetbits(length1);
611 scalefac[ch].s[2][10] = br.hgetbits(length1);
612 scalefac[ch].s[0][11] = br.hgetbits(length1);
613 scalefac[ch].s[1][11] = br.hgetbits(length1);
614 scalefac[ch].s[2][11] = br.hgetbits(length1);
615 scalefac[ch].s[0][12] = 0;
616 scalefac[ch].s[1][12] = 0;
617 scalefac[ch].s[2][12] = 0;
620 } else { // LONG types 0,1,3
622 if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) {
623 scalefac[ch].l[0] = br.hgetbits(length0);
624 scalefac[ch].l[1] = br.hgetbits(length0);
625 scalefac[ch].l[2] = br.hgetbits(length0);
626 scalefac[ch].l[3] = br.hgetbits(length0);
627 scalefac[ch].l[4] = br.hgetbits(length0);
628 scalefac[ch].l[5] = br.hgetbits(length0);
630 if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) {
631 scalefac[ch].l[6] = br.hgetbits(length0);
632 scalefac[ch].l[7] = br.hgetbits(length0);
633 scalefac[ch].l[8] = br.hgetbits(length0);
634 scalefac[ch].l[9] = br.hgetbits(length0);
635 scalefac[ch].l[10] = br.hgetbits(length0);
637 if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) {
638 scalefac[ch].l[11] = br.hgetbits(length1);
639 scalefac[ch].l[12] = br.hgetbits(length1);
640 scalefac[ch].l[13] = br.hgetbits(length1);
641 scalefac[ch].l[14] = br.hgetbits(length1);
642 scalefac[ch].l[15] = br.hgetbits(length1);
644 if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) {
645 scalefac[ch].l[16] = br.hgetbits(length1);
646 scalefac[ch].l[17] = br.hgetbits(length1);
647 scalefac[ch].l[18] = br.hgetbits(length1);
648 scalefac[ch].l[19] = br.hgetbits(length1);
649 scalefac[ch].l[20] = br.hgetbits(length1);
652 scalefac[ch].l[21] = 0;
653 scalefac[ch].l[22] = 0;
660 // MDM: new_slen is fully initialized before use, no need
661 // to reallocate array.
663 private final int[] new_slen = new int[4];
666 @LATTICE("M<THIS,THIS<IN,THIS<C,C*,M*,THISLOC=THIS,GLOBALLOC=THIS")
667 private void get_LSF_scale_data(@LOC("THIS,LayerIIIDecoder.CH0") int ch,
668 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
670 @LOC("THIS,LayerIIIDecoder.HD1") int mode_ext = header.mode_extension();
671 // @LOC("THIS,LayerIIIDecoder.GLSFD1") gr_info_s gr_info =
672 // (si.ch[ch].gr[gr]); // remove alias
674 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int scalefac_comp =
675 si.ch[ch].gr[gr].scalefac_compress;
676 @LOC("THIS,LayerIIIDecoder.SI") int blocktypenumber;
678 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int int_scalefac_comp;
679 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m;
680 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR,LayerIIIDecoder$gr_info_s.V") int blocknumber =
683 if (si.ch[ch].gr[gr].block_type == 2) {
684 if (si.ch[ch].gr[gr].mixed_block_flag == 0) {
686 } else if (si.ch[ch].gr[gr].mixed_block_flag == 1) {
695 if (!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
697 if (scalefac_comp < 400) {
699 new_slen[0] = (scalefac_comp >>> 4) / 5;
700 new_slen[1] = (scalefac_comp >>> 4) % 5;
701 new_slen[2] = (scalefac_comp & 0xF) >>> 2;
702 new_slen[3] = (scalefac_comp & 3);
703 si.ch[ch].gr[gr].preflag = 0;
706 } else if (scalefac_comp < 500) {
708 new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5;
709 new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5;
710 new_slen[2] = (scalefac_comp - 400) & 3;
712 si.ch[ch].gr[gr].preflag = 0;
715 } else if (scalefac_comp < 512) {
717 new_slen[0] = (scalefac_comp - 500) / 3;
718 new_slen[1] = (scalefac_comp - 500) % 3;
721 si.ch[ch].gr[gr].preflag = 1;
726 if ((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
727 int_scalefac_comp = scalefac_comp >>> 1;
729 if (int_scalefac_comp < 180) {
730 new_slen[0] = int_scalefac_comp / 36;
731 new_slen[1] = (int_scalefac_comp % 36) / 6;
732 new_slen[2] = (int_scalefac_comp % 36) % 6;
734 si.ch[ch].gr[gr].preflag = 0;
736 } else if (int_scalefac_comp < 244) {
737 new_slen[0] = ((int_scalefac_comp - 180) & 0x3F) >>> 4;
738 new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2;
739 new_slen[2] = (int_scalefac_comp - 180) & 3;
741 si.ch[ch].gr[gr].preflag = 0;
743 } else if (int_scalefac_comp < 255) {
744 new_slen[0] = (int_scalefac_comp - 244) / 3;
745 new_slen[1] = (int_scalefac_comp - 244) % 3;
748 si.ch[ch].gr[gr].preflag = 0;
753 for (@LOC("C") int x = 0; x < 45; x++)
755 scalefac_buffer[x] = 0;
758 for (@LOC("C") int i = 0; i < 4; i++) {
759 for (@LOC("THIS,LayerIIIDecoder.NS") int j = 0; j < nr_of_sfb_block[blocknumber][blocktypenumber][i]; j++) {
760 scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : br.hgetbits(new_slen[i]);
763 } // for (unint32 j ...
764 } // for (uint32 i ...
770 @LATTICE("THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
771 private void get_LSF_scale_factors(@LOC("THIS,LayerIIIDecoder.CH0") int ch,
772 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
774 @LOC("THIS,LayerIIIDecoder.SFB_SH") int sfb;
775 @LOC("THIS,LayerIIIDecoder.SFB_SH") int m = 0;
776 @LOC("THIS,LayerIIIDecoder.SFB_SH") int window;
777 // gr_info_s gr_info = (si.ch[ch].gr[gr]); // remove alias
779 get_LSF_scale_data(ch, gr);
781 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
782 if (si.ch[ch].gr[gr].mixed_block_flag != 0) { // MIXED
783 for (sfb = 0; sfb < 8; sfb++) {
784 scalefac[ch].l[sfb] = scalefac_buffer[m];
787 for (sfb = 3; sfb < 12; sfb++) {
788 for (window = 0; window < 3; window++) {
789 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
793 for (window = 0; window < 3; window++)
794 scalefac[ch].s[window][12] = 0;
798 for (sfb = 0; sfb < 12; sfb++) {
799 for (window = 0; window < 3; window++) {
800 scalefac[ch].s[window][sfb] = scalefac_buffer[m];
805 for (window = 0; window < 3; window++)
806 scalefac[ch].s[window][12] = 0;
808 } else { // LONG types 0,1,3
810 for (sfb = 0; sfb < 21; sfb++) {
811 scalefac[ch].l[sfb] = scalefac_buffer[m];
814 scalefac[ch].l[21] = 0; // Jeff
815 scalefac[ch].l[22] = 0;
839 private void huffman_decode(int ch, int gr) {
845 int part2_3_end = part2_start + si.ch[ch].gr[gr].part2_3_length;
855 // Find region boundary for short block case
857 if (((si.ch[ch].gr[gr].window_switching_flag) != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
860 // MS: Extrahandling for 8KHZ
861 region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case
863 region2Start = 576; // No Region2 for short block case
865 } else { // Find region boundary for long block case
867 buf = si.ch[ch].gr[gr].region0_count + 1;
868 buf1 = buf + si.ch[ch].gr[gr].region1_count + 1;
870 if (buf1 > sfBandIndex[sfreq].l.length - 1)
871 buf1 = sfBandIndex[sfreq].l.length - 1;
873 region1Start = sfBandIndex[sfreq].l[buf];
874 region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */
878 // Read bigvalues area
879 for (int i = 0; i < (si.ch[ch].gr[gr].big_values << 1); i += 2) {
880 if (i < region1Start)
881 h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]];
882 else if (i < region2Start)
883 h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]];
885 h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]];
887 huffcodetab.huffman_decoder(h, x, y, v, w, br);
888 // if (index >= is_1d.length)
889 // System.out.println("i0="+i+"/"+(si.ch[ch].gr[gr].big_values<<1)+" Index="+index+" is_1d="+is_1d.length);
891 is_1d[index++] = x[0];
892 is_1d[index++] = y[0];
894 CheckSumHuff = CheckSumHuff + x[0] + y[0];
895 // System.out.println("x = "+x[0]+" y = "+y[0]);
899 h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select + 32];
900 num_bits = br.hsstell();
902 while ((num_bits < part2_3_end) && (index < 576)) {
904 huffcodetab.huffman_decoder(h, x, y, v, w, br);
906 is_1d[index++] = v[0];
907 is_1d[index++] = w[0];
908 is_1d[index++] = x[0];
909 is_1d[index++] = y[0];
910 CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0];
911 // System.out.println("v = "+v[0]+" w = "+w[0]);
912 // System.out.println("x = "+x[0]+" y = "+y[0]);
913 num_bits = br.hsstell();
916 if (num_bits > part2_3_end) {
917 br.rewindNbits(num_bits - part2_3_end);
921 num_bits = br.hsstell();
923 // Dismiss stuffing bits
924 if (num_bits < part2_3_end)
925 br.hgetbits(part2_3_end - num_bits);
937 // may not be necessary
938 for (; index < 576; index++)
942 @LATTICE("THIS,IN,THISLOC=THIS,RETURNLOC=THIS")
943 private int huffcodetab_huffman_decoder(@LOC("IN") int h) {
944 // TODO need to move huffmancodetab implementation here
951 private void i_stereo_k_values(@LOC("THIS,LayerIIIDecoder.LR") int is_pos,
952 @LOC("THIS,LayerIIIDecoder.LR") int io_type, @LOC("THIS,LayerIIIDecoder.LR") int i) {
956 } else if ((is_pos & 1) != 0) {
957 k[0][i] = io[io_type][(is_pos + 1) >>> 1];
961 k[1][i] = io[io_type][is_pos >>> 1];
968 // @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")
969 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
971 private void dequantize_sample(
972 /* @LOC("OUT") float xr[][], */@LOC("THIS,LayerIIIDecoder.SI") int ch,
973 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
975 // @LOC("GR") gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias!
976 @LOC("THIS,LayerIIIDecoder.SI1") int cb = 0;
978 @LOC("THIS,LayerIIIDecoder.SI1") int next_cb_boundary;
979 @LOC("THIS,LayerIIIDecoder.SI1") int cb_begin = 0;
980 @LOC("THIS,LayerIIIDecoder.SI1") int cb_width = 0;
981 @LOC("THIS,LayerIIIDecoder.SI1") float g_gain;
983 @LOC("THIS,LayerIIIDecoder.SI1") int index = 0;
984 @LOC("THIS,LayerIIIDecoder.SI1") int t_index;
985 @LOC("THIS,LayerIIIDecoder.NZ") int j;
987 // float[][] xr_1d = xr;//substituted xr for instances of xr_1d to decrease
990 // choose correct scalefactor band per block type, initalize boundary
992 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
993 if (si.ch[ch].gr[gr].mixed_block_flag != 0)
994 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
996 cb_width = sfBandIndex[sfreq].s[1];
997 next_cb_boundary = (cb_width << 2) - cb_width;
1001 next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
1004 // Compute overall (global) scaling.
1006 g_gain = (float) Math.pow(2.0, (0.25 * (si.ch[ch].gr[gr].global_gain - 210.0)));
1008 for (j = 0; j < nonzero[ch]; j++) {
1009 // Modif E.B 02/22/99
1010 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1011 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1012 if (is_1d[j] == 0) {
1013 ro[ch][quotien][reste] = 0.0f;
1015 @LOC("THIS,LayerIIIDecoder.IS1D") int abv = is_1d[j];
1016 // Pow Array fix (11/17/04)
1017 if (abv < t_43.length) {
1019 ro[ch][quotien][reste] = g_gain * t_43[abv];
1021 if (-abv < t_43.length)
1022 ro[ch][quotien][reste] = -g_gain * t_43[-abv];
1024 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1028 ro[ch][quotien][reste] = g_gain * (float) Math.pow(abv, d43);
1030 ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
1035 // apply formula per block type
1036 for (j = 0; j < nonzero[ch]; j++) {
1037 // Modif E.B 02/22/99
1038 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1039 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1041 if (index == next_cb_boundary) { /* Adjust critical band boundary */
1042 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1043 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1045 if (index == sfBandIndex[sfreq].l[8]) {
1046 next_cb_boundary = sfBandIndex[sfreq].s[4];
1047 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1049 cb_width = sfBandIndex[sfreq].s[4] - sfBandIndex[sfreq].s[3];
1051 cb_begin = sfBandIndex[sfreq].s[3];
1052 cb_begin = (cb_begin << 2) - cb_begin;
1054 } else if (index < sfBandIndex[sfreq].l[8]) {
1056 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1060 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1061 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1063 cb_begin = sfBandIndex[sfreq].s[cb];
1064 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1065 cb_begin = (cb_begin << 2) - cb_begin;
1070 next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
1071 next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
1073 cb_begin = sfBandIndex[sfreq].s[cb];
1074 cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
1075 cb_begin = (cb_begin << 2) - cb_begin;
1078 } else { // long blocks
1080 next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
1085 // Do long/short dependent scaling operations
1087 if ((si.ch[ch].gr[gr].window_switching_flag != 0)
1088 && (((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)
1089 && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (j >= 36)))) {
1091 t_index = (index - cb_begin) / cb_width;
1093 * xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) -(0.5
1094 * * (1.0 + gr_info.scalefac_scale) scalefac[ch].s[t_index][cb])));
1096 @LOC("THIS,LayerIIIDecoder.SI1") int idx =
1097 scalefac[ch].s[t_index][cb] << si.ch[ch].gr[gr].scalefac_scale;
1098 idx += (si.ch[ch].gr[gr].subblock_gain[t_index] << 2);
1100 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1102 } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks
1104 * xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale)
1105 * (scalefac[ch].l[cb] + gr_info.preflag * pretab[cb]));
1107 @LOC("THIS,LayerIIIDecoder.SI1") int idx = scalefac[ch].l[cb];
1109 if (si.ch[ch].gr[gr].preflag != 0)
1112 idx = idx << si.ch[ch].gr[gr].scalefac_scale;
1113 ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
1118 for (j = nonzero[ch]; j < 576; j++) {
1119 // Modif E.B 02/22/99
1120 @LOC("THIS,LayerIIIDecoder.NZ") int reste = j % SSLIMIT;
1121 @LOC("THIS,LayerIIIDecoder.NZ") int quotien = (int) ((j - reste) / SSLIMIT);
1126 ro[ch][quotien][reste] = 0.0f;
1136 // @LATTICE("THIS<I,I<GR,GR<IN,I*,THISLOC=THIS,GLOBALLOC=IN")
1137 @LATTICE("THIS,THISLOC=THIS,GLOBALLOC=THIS")
1138 private void reorder(/* @LOC("IN") float xr[][], */@LOC("THIS,LayerIIIDecoder.CH0") int ch,
1139 @LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1140 // the purpose of reordering: move 'short samples' back to their original
1142 // after reorder, the samples are no long ordered by frequency
1144 // the format of input data to reorder:
1145 // three small chunks of 192 samples each are combined to 576 samples
1146 // ordered by frequency
1148 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1150 @LOC("THIS,LayerIIIDecoder.SI1") int index;
1152 @LOC("THIS,LayerIIIDecoder.SI1") int freq;
1153 @LOC("THIS,LayerIIIDecoder.SI1") int freq3;
1154 @LOC("THIS,LayerIIIDecoder.SI1") int sfb;
1155 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start;
1156 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_lines;
1157 @LOC("THIS,LayerIIIDecoder.SI1") int src_line;
1158 @LOC("THIS,LayerIIIDecoder.SI1") int des_line;
1159 // float[][] xr_1d = xr; subbed in xr for xr_1d so as not to create extra
1162 if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
1164 for (index = 0; index < 576; index++) {
1165 out_1d[index] = 0.0f;
1168 if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
1169 // NO REORDER FOR LOW 2 SUBBANDS
1170 for (index = 0; index < 36; index++) {
1171 // Modif E.B 02/22/99
1172 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1173 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1174 out_1d[index] = lr[ch][quotien][reste];
1176 // REORDERING FOR REST SWITCHED SHORT
1178 * for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3],
1179 * sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; sfb < 13;
1180 * sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], sfb_lines =
1181 * sfBandIndex[sfreq].s[sfb+1] - sfb_start ) {
1183 for (sfb = 3; sfb < 13; sfb++) {
1184 // System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length);
1185 sfb_start = sfBandIndex[sfreq].s[sfb];
1186 sfb_lines = sfBandIndex[sfreq].s[sfb + 1] - sfb_start;
1188 @LOC("THIS,LayerIIIDecoder.SI1") int sfb_start3 = (sfb_start << 2) - sfb_start;
1190 for (freq = 0, freq3 = 0; freq < sfb_lines; freq++, freq3 += 3) {
1192 src_line = sfb_start3 + freq;
1193 des_line = sfb_start3 + freq3;
1194 // Modif E.B 02/22/99
1195 @LOC("THIS,LayerIIIDecoder.SI1") int reste = src_line % SSLIMIT;
1196 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((src_line - reste) / SSLIMIT);
1198 out_1d[des_line] = lr[ch][quotien][reste];
1199 src_line += sfb_lines;
1202 reste = src_line % SSLIMIT;
1203 quotien = (int) ((src_line - reste) / SSLIMIT);
1205 out_1d[des_line] = lr[ch][quotien][reste];
1206 src_line += sfb_lines;
1209 reste = src_line % SSLIMIT;
1210 quotien = (int) ((src_line - reste) / SSLIMIT);
1212 out_1d[des_line] = lr[ch][quotien][reste];
1216 } else { // pure short
1217 for (index = 0; index < 576; index++) {
1218 @LOC("THIS,LayerIIIDecoder.SI1") int j = reorder_table[sfreq][index];
1219 @LOC("THIS,LayerIIIDecoder.SI1") int reste = j % SSLIMIT;
1220 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((j - reste) / SSLIMIT);
1221 out_1d[index] = lr[ch][quotien][reste];
1224 } else { // long blocks
1225 for (index = 0; index < 576; index++) {
1226 // Modif E.B 02/22/99
1227 @LOC("THIS,LayerIIIDecoder.SI1") int reste = index % SSLIMIT;
1228 @LOC("THIS,LayerIIIDecoder.SI1") int quotien = (int) ((index - reste) / SSLIMIT);
1229 out_1d[index] = lr[ch][quotien][reste];
1239 int[] is_pos = new int[576];
1241 float[] is_ratio = new float[576];
1244 @LATTICE("IO<THIS,THIS<IN,THISLOC=THIS,GLOBALLOC=IN")
1245 private void stereo(@LOC("THIS,LayerIIIDecoder.CH0") int gr) {
1246 @LOC("THIS,LayerIIIDecoder.RO1") int sb;
1247 @LOC("THIS,LayerIIIDecoder.RO1") int ss;
1249 if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][]
1251 for (sb = 0; sb < SBLIMIT; sb++)
1252 for (ss = 0; ss < SSLIMIT; ss += 3) {
1253 lr[0][sb][ss] = ro[0][sb][ss];
1254 lr[0][sb][ss + 1] = ro[0][sb][ss + 1];
1255 lr[0][sb][ss + 2] = ro[0][sb][ss + 2];
1260 // gr_info_s gr_info = (si.ch[0].gr[gr]); remove alias
1261 @LOC("THIS,LayerIIIDecoder.HD1") int mode_ext = header.mode_extension();
1263 @LOC("THIS,LayerIIIDecoder.RO1") int sfb;
1264 @LOC("THIS,LayerIIIDecoder.RO1") int i;
1265 @LOC("THIS,LayerIIIDecoder.RO1") int lines;
1266 @LOC("THIS,LayerIIIDecoder.RO1") int temp;
1267 @LOC("THIS,LayerIIIDecoder.RO1") int temp2;
1269 @LOC("THIS,LayerIIIDecoder.CH0") boolean ms_stereo =
1270 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2) != 0));
1271 @LOC("THIS,LayerIIIDecoder.CH0") boolean i_stereo =
1272 ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1) != 0));
1273 @LOC("THIS,LayerIIIDecoder.CH0") boolean lsf =
1274 ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF)); // SZD
1276 @LOC("THIS,LayerIIIDecoder.LR") int io_type = (si.ch[0].gr[gr].scalefac_compress & 1);
1280 for (i = 0; i < 576; i++) {
1287 if ((si.ch[0].gr[gr].window_switching_flag != 0) && (si.ch[0].gr[gr].block_type == 2)) {
1288 if (si.ch[0].gr[gr].mixed_block_flag != 0) {
1290 @LOC("THIS,LayerIIIDecoder.RO1") int max_sfb = 0;
1292 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1293 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1295 for (sfb = 12; sfb >= 3; sfb--) {
1296 i = sfBandIndex[sfreq].s[sfb];
1297 lines = sfBandIndex[sfreq].s[sfb + 1] - i;
1298 i = (i << 2) - i + (j + 1) * lines - 1;
1301 if (ro[1][i / 18][i % 18] != 0.0f) {
1302 // MDM: in java, array access is very slow.
1303 // Is quicker to compute div and mod values.
1304 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1313 } // while (lines > 0)
1315 } // for (sfb=12 ...
1322 temp = sfBandIndex[sfreq].s[sfb];
1323 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1324 i = (temp << 2) - temp + j * sb;
1326 for (; sb > 0; sb--) {
1327 is_pos[i] = scalefac[1].s[j][sfb];
1330 i_stereo_k_values(is_pos[i], io_type, i);
1332 is_ratio[i] = TAN12[is_pos[i]];
1337 } // while (sfb < 12)
1338 sfb = sfBandIndex[sfreq].s[10];
1339 sb = sfBandIndex[sfreq].s[11] - sfb;
1340 sfb = (sfb << 2) - sfb + j * sb;
1341 temp = sfBandIndex[sfreq].s[11];
1342 sb = sfBandIndex[sfreq].s[12] - temp;
1343 i = (temp << 2) - temp + j * sb;
1345 for (; sb > 0; sb--) {
1346 is_pos[i] = is_pos[sfb];
1349 k[0][i] = k[0][sfb];
1350 k[1][i] = k[1][sfb];
1352 is_ratio[i] = is_ratio[sfb];
1355 } // for (; sb > 0 ...
1362 if (ro[1][i][ss] != 0.0f) {
1363 sb = (i << 4) + (i << 1) + ss;
1374 while (sfBandIndex[sfreq].l[i] <= sb)
1377 i = sfBandIndex[sfreq].l[i];
1378 for (; sfb < 8; sfb++) {
1379 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1380 for (; sb > 0; sb--) {
1381 is_pos[i] = scalefac[1].l[sfb];
1384 i_stereo_k_values(is_pos[i], io_type, i);
1386 is_ratio[i] = TAN12[is_pos[i]];
1388 } // for (; sb>0 ...
1389 } // for (; sfb<8 ...
1391 } else { // if (gr_info.mixed_block_flag)
1392 for (@LOC("THIS,LayerIIIDecoder.RO1") int j = 0; j < 3; j++) {
1393 @LOC("THIS,LayerIIIDecoder.RO1") int sfbcnt;
1395 for (sfb = 12; sfb >= 0; sfb--) {
1396 temp = sfBandIndex[sfreq].s[sfb];
1397 lines = sfBandIndex[sfreq].s[sfb + 1] - temp;
1398 i = (temp << 2) - temp + (j + 1) * lines - 1;
1401 if (ro[1][i / 18][i % 18] != 0.0f) {
1402 // MDM: in java, array access is very slow.
1403 // Is quicker to compute div and mod values.
1404 // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
1411 } // while (lines > 0) */
1413 } // for (sfb=12 ...
1416 temp = sfBandIndex[sfreq].s[sfb];
1417 sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
1418 i = (temp << 2) - temp + j * sb;
1419 for (; sb > 0; sb--) {
1420 is_pos[i] = scalefac[1].s[j][sfb];
1423 i_stereo_k_values(is_pos[i], io_type, i);
1425 is_ratio[i] = TAN12[is_pos[i]];
1427 } // for (; sb>0 ...
1431 temp = sfBandIndex[sfreq].s[10];
1432 temp2 = sfBandIndex[sfreq].s[11];
1434 sfb = (temp << 2) - temp + j * sb;
1435 sb = sfBandIndex[sfreq].s[12] - temp2;
1436 i = (temp2 << 2) - temp2 + j * sb;
1438 for (; sb > 0; sb--) {
1439 is_pos[i] = is_pos[sfb];
1442 k[0][i] = k[0][sfb];
1443 k[1][i] = k[1][sfb];
1445 is_ratio[i] = is_ratio[sfb];
1448 } // for (; sb>0 ...
1451 } else { // if (gr_info.window_switching_flag ...
1456 if (ro[1][i][ss] != 0.0f) {
1457 sb = (i << 4) + (i << 1) + ss;
1468 while (sfBandIndex[sfreq].l[i] <= sb)
1472 i = sfBandIndex[sfreq].l[i];
1473 for (; sfb < 21; sfb++) {
1474 sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
1475 for (; sb > 0; sb--) {
1476 is_pos[i] = scalefac[1].l[sfb];
1479 i_stereo_k_values(is_pos[i], io_type, i);
1481 is_ratio[i] = TAN12[is_pos[i]];
1485 sfb = sfBandIndex[sfreq].l[20];
1486 for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i < 576); sb--) {
1487 is_pos[i] = is_pos[sfb]; // error here : i >=576
1490 k[0][i] = k[0][sfb];
1491 k[1][i] = k[1][sfb];
1493 is_ratio[i] = is_ratio[sfb];
1496 } // if (gr_info.mixed_block_flag)
1497 } // if (gr_info.window_switching_flag ...
1501 for (sb = 0; sb < SBLIMIT; sb++)
1502 for (ss = 0; ss < SSLIMIT; ss++) {
1503 if (is_pos[i] == 7) {
1505 lr[0][sb][ss] = (ro[0][sb][ss] + ro[1][sb][ss]) * 0.707106781f;
1506 lr[1][sb][ss] = (ro[0][sb][ss] - ro[1][sb][ss]) * 0.707106781f;
1508 lr[0][sb][ss] = ro[0][sb][ss];
1509 lr[1][sb][ss] = ro[1][sb][ss];
1511 } else if (i_stereo) {
1514 lr[0][sb][ss] = ro[0][sb][ss] * k[0][i];
1515 lr[1][sb][ss] = ro[0][sb][ss] * k[1][i];
1517 lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]);
1518 lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i];
1522 * else { System.out.println("Error in stereo processing\n"); }
1534 // @LATTICE("THIS<SRC,SRC<SS,SS<SB18,SB18<SB18LIM,SB18LIM<GR,GR<IN,SB18*,SS*,THISLOC=THIS")
1535 @LATTICE("VAR<THIS,THIS<C,C<IN,THISLOC=THIS,C*")
1536 private void antialias(@LOC("THIS,LayerIIIDecoder.SI") int ch,
1537 @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1539 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18;
1540 @LOC("THIS,LayerIIIDecoder.SI1") int ss;
1541 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR2") int sb18lim;
1543 @LOC("THIS,LayerIIIDecoder.SI,LayerIIIDecoder$III_side_info_t.CH,LayerIIIDecoder$temporaire.GR1") gr_info_s gr_info =
1545 // 31 alias-reduction operations between each pair of sub-bands
1546 // with 8 butterflies between each pair
1548 if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)
1549 && !(gr_info.mixed_block_flag != 0))
1552 if ((gr_info.window_switching_flag != 0) && (gr_info.mixed_block_flag != 0)
1553 && (gr_info.block_type == 2)) {
1559 for (sb18 = 0; sb18 < sb18lim; sb18 += 18) {
1560 for (ss = 0; ss < 8; ss++) {
1561 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx1 = sb18 + 17 - ss;
1562 @LOC("THIS,LayerIIIDecoder.SI1") int src_idx2 = sb18 + 18 + ss;
1563 @LOC("THIS,LayerIIIDecoder.OUT") float bu = out_1d[src_idx1];
1564 @LOC("THIS,LayerIIIDecoder.OUT") float bd = out_1d[src_idx2];
1565 out_1d[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]);
1566 out_1d[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]);
1575 // MDM: tsOutCopy and rawout do not need initializing, so the arrays
1578 float[] tsOutCopy = new float[18];
1580 float[] rawout = new float[36];
1582 @LATTICE("THIS<SB,SB*,THISLOC=THIS")
1583 private void hybrid(@LOC("THIS,LayerIIIDecoder.SI") int ch, @LOC("THIS,LayerIIIDecoder.SI") int gr) {
1585 @LOC("THIS,LayerIIIDecoder.SI1") int bt;
1586 @LOC("SB") int sb18;
1587 // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
1588 // @LOC("THIS,LayerIIIDecoder.TS") float[] tsOut; //remove alias
1590 // float[][] prvblk;
1592 for (sb18 = 0; sb18 < 576; sb18 += 18) {
1594 ((si.ch[ch].gr[gr].window_switching_flag != 0)
1595 && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (sb18 < 36)) ? 0
1596 : si.ch[ch].gr[gr].block_type;
1599 // Modif E.B 02/22/99
1600 for (@LOC("SB") int cc = 0; cc < 18; cc++)
1601 tsOutCopy[cc] = out_1d[cc + sb18];
1605 for (@LOC("SB") int cc = 0; cc < 18; cc++)
1606 out_1d[cc + sb18] = tsOutCopy[cc];
1610 // prvblk = prevblck; //eliminated unnecessary areas
1612 out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
1613 prevblck[ch][sb18 + 0] = rawout[18];
1614 out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
1615 prevblck[ch][sb18 + 1] = rawout[19];
1616 out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
1617 prevblck[ch][sb18 + 2] = rawout[20];
1618 out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
1619 prevblck[ch][sb18 + 3] = rawout[21];
1620 out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
1621 prevblck[ch][sb18 + 4] = rawout[22];
1622 out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
1623 prevblck[ch][sb18 + 5] = rawout[23];
1624 out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
1625 prevblck[ch][sb18 + 6] = rawout[24];
1626 out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
1627 prevblck[ch][sb18 + 7] = rawout[25];
1628 out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
1629 prevblck[ch][sb18 + 8] = rawout[26];
1630 out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
1631 prevblck[ch][sb18 + 9] = rawout[27];
1632 out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
1633 prevblck[ch][sb18 + 10] = rawout[28];
1634 out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
1635 prevblck[ch][sb18 + 11] = rawout[29];
1636 out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
1637 prevblck[ch][sb18 + 12] = rawout[30];
1638 out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
1639 prevblck[ch][sb18 + 13] = rawout[31];
1640 out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
1641 prevblck[ch][sb18 + 14] = rawout[32];
1642 out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
1643 prevblck[ch][sb18 + 15] = rawout[33];
1644 out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
1645 prevblck[ch][sb18 + 16] = rawout[34];
1646 out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
1647 prevblck[ch][sb18 + 17] = rawout[35];
1654 @LATTICE("THIS<SB,THIS<SS,SB<GLOBAL,SS<GLOBAL,SS*,SB*,THISLOC=THIS,GLOBALLOC=GLOBAL")
1655 private void do_downmix() {
1656 for (@LOC("SB") int sb = 0; sb < SSLIMIT; sb++) {
1657 for (@LOC("SS") int ss = 0; ss < SSLIMIT; ss += 3) {
1658 lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f;
1659 lr[0][sb][ss + 1] = (lr[0][sb][ss + 1] + lr[1][sb][ss + 1]) * 0.5f;
1660 lr[0][sb][ss + 2] = (lr[0][sb][ss + 2] + lr[1][sb][ss + 2]) * 0.5f;
1668 // @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")
1669 // public void inv_mdct(@LOC("SH") float[] in, @LOC("OUT") float[] out,
1670 // @LOC("IN") int block_type) {//remove alias
1672 @LATTICE("THIS,THISLOC=THIS")
1673 public void inv_mdct(@LOC("THIS,LayerIIIDecoder.OUT") int block_type) {
1675 @LOC("THIS,LayerIIIDecoder.OUT") int i;
1677 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_0;
1678 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_1;
1679 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_2;
1680 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_3;
1681 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_4;
1682 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_5;
1683 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_6;
1684 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_7;
1685 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_8;
1686 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_9;
1687 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_10;
1688 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_11;
1689 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_12;
1690 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_13;
1691 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_14;
1692 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_15;
1693 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_16;
1694 @LOC("THIS,LayerIIIDecoder.OUT") float tmpf_17;
1711 tmpf_15 = tmpf_16 = tmpf_17 = 0.0f;
1713 if (block_type == 2) {
1717 * Under MicrosoftVM 2922, This causes a GPF, or At best, an
1718 * ArrayIndexOutOfBoundsExceptin. for(int p=0;p<36;p+=9) { out[p] =
1719 * out[p+1] = out[p+2] = out[p+3] = out[p+4] = out[p+5] = out[p+6] =
1720 * out[p+7] = out[p+8] = 0.0f; }
1759 @LOC("THIS,LayerIIIDecoder.OUT") int six_i = 0;
1761 for (i = 0; i < 3; i++) {
1763 // Begin 12 point IDCT
1764 // Input aliasing for 12 pt IDCT
1765 tsOutCopy[15 + i] += tsOutCopy[12 + i];
1766 tsOutCopy[12 + i] += tsOutCopy[9 + i];
1767 tsOutCopy[9 + i] += tsOutCopy[6 + i];
1768 tsOutCopy[6 + i] += tsOutCopy[3 + i];
1769 tsOutCopy[3 + i] += tsOutCopy[0 + i];
1771 // Input aliasing on odd indices (for 6 point IDCT)
1772 tsOutCopy[15 + i] += tsOutCopy[9 + i];
1773 tsOutCopy[9 + i] += tsOutCopy[3 + i];
1775 // 3 point IDCT on even indices
1776 @LOC("THIS,LayerIIIDecoder.OUT") float pp1;
1777 @LOC("THIS,LayerIIIDecoder.OUT") float pp2;
1778 @LOC("THIS,LayerIIIDecoder.OUT") float sum;
1779 pp2 = tsOutCopy[12 + i] * 0.500000000f;
1780 pp1 = tsOutCopy[6 + i] * 0.866025403f;
1781 sum = tsOutCopy[0 + i] + pp2;
1782 tmpf_1 = tsOutCopy[0 + i] - tsOutCopy[12 + i];
1786 // End 3 point IDCT on even indices
1787 // 3 point IDCT on odd indices (for 6 point IDCT)
1788 pp2 = tsOutCopy[15 + i] * 0.500000000f;
1789 pp1 = tsOutCopy[9 + i] * 0.866025403f;
1790 sum = tsOutCopy[3 + i] + pp2;
1791 tmpf_4 = tsOutCopy[3 + i] - tsOutCopy[15 + i];
1794 // End 3 point IDCT on odd indices
1795 // Twiddle factors on odd indices (for 6 point IDCT)
1797 tmpf_3 *= 1.931851653f;
1798 tmpf_4 *= 0.707106781f;
1799 tmpf_5 *= 0.517638090f;
1801 // Output butterflies on 2 3 point IDCT's (for 6 point IDCT)
1802 @LOC("THIS,LayerIIIDecoder.OUT") float save = tmpf_0;
1804 tmpf_5 = save - tmpf_5;
1807 tmpf_4 = save - tmpf_4;
1810 tmpf_3 = save - tmpf_3;
1813 // Twiddle factors on indices (for 12 point IDCT)
1815 tmpf_0 *= 0.504314480f;
1816 tmpf_1 *= 0.541196100f;
1817 tmpf_2 *= 0.630236207f;
1818 tmpf_3 *= 0.821339815f;
1819 tmpf_4 *= 1.306562965f;
1820 tmpf_5 *= 3.830648788f;
1822 // End 12 point IDCT
1824 // Shift to 12 point modified IDCT, multiply by window type 2
1825 tmpf_8 = -tmpf_0 * 0.793353340f;
1826 tmpf_9 = -tmpf_0 * 0.608761429f;
1827 tmpf_7 = -tmpf_1 * 0.923879532f;
1828 tmpf_10 = -tmpf_1 * 0.382683432f;
1829 tmpf_6 = -tmpf_2 * 0.991444861f;
1830 tmpf_11 = -tmpf_2 * 0.130526192f;
1833 tmpf_1 = tmpf_4 * 0.382683432f;
1834 tmpf_2 = tmpf_5 * 0.608761429f;
1836 tmpf_3 = -tmpf_5 * 0.793353340f;
1837 tmpf_4 = -tmpf_4 * 0.923879532f;
1838 tmpf_5 = -tmpf_0 * 0.991444861f;
1840 tmpf_0 *= 0.130526192f;
1842 rawout[six_i + 6] += tmpf_0;
1843 rawout[six_i + 7] += tmpf_1;
1844 rawout[six_i + 8] += tmpf_2;
1845 rawout[six_i + 9] += tmpf_3;
1846 rawout[six_i + 10] += tmpf_4;
1847 rawout[six_i + 11] += tmpf_5;
1848 rawout[six_i + 12] += tmpf_6;
1849 rawout[six_i + 13] += tmpf_7;
1850 rawout[six_i + 14] += tmpf_8;
1851 rawout[six_i + 15] += tmpf_9;
1852 rawout[six_i + 16] += tmpf_10;
1853 rawout[six_i + 17] += tmpf_11;
1859 // input aliasing for 36 point IDCT
1860 tsOutCopy[17] += tsOutCopy[16];
1861 tsOutCopy[16] += tsOutCopy[15];
1862 tsOutCopy[15] += tsOutCopy[14];
1863 tsOutCopy[14] += tsOutCopy[13];
1864 tsOutCopy[13] += tsOutCopy[12];
1865 tsOutCopy[12] += tsOutCopy[11];
1866 tsOutCopy[11] += tsOutCopy[10];
1867 tsOutCopy[10] += tsOutCopy[9];
1868 tsOutCopy[9] += tsOutCopy[8];
1869 tsOutCopy[8] += tsOutCopy[7];
1870 tsOutCopy[7] += tsOutCopy[6];
1871 tsOutCopy[6] += tsOutCopy[5];
1872 tsOutCopy[5] += tsOutCopy[4];
1873 tsOutCopy[4] += tsOutCopy[3];
1874 tsOutCopy[3] += tsOutCopy[2];
1875 tsOutCopy[2] += tsOutCopy[1];
1876 tsOutCopy[1] += tsOutCopy[0];
1878 // 18 point IDCT for odd indices
1879 // input aliasing for 18 point IDCT
1880 tsOutCopy[17] += tsOutCopy[15];
1881 tsOutCopy[15] += tsOutCopy[13];
1882 tsOutCopy[13] += tsOutCopy[11];
1883 tsOutCopy[11] += tsOutCopy[9];
1884 tsOutCopy[9] += tsOutCopy[7];
1885 tsOutCopy[7] += tsOutCopy[5];
1886 tsOutCopy[5] += tsOutCopy[3];
1887 tsOutCopy[3] += tsOutCopy[1];
1889 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0;
1890 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1;
1891 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2;
1892 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3;
1893 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4;
1894 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_;
1895 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_;
1896 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_;
1897 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_;
1898 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0o;
1899 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1o;
1900 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2o;
1901 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3o;
1902 @LOC("THIS,LayerIIIDecoder.OUT") float tmp4o;
1903 @LOC("THIS,LayerIIIDecoder.OUT") float tmp0_o;
1904 @LOC("THIS,LayerIIIDecoder.OUT") float tmp1_o;
1905 @LOC("THIS,LayerIIIDecoder.OUT") float tmp2_o;
1906 @LOC("THIS,LayerIIIDecoder.OUT") float tmp3_o;
1908 // Fast 9 Point Inverse Discrete Cosine Transform
1910 // By Francois-Raymond Boyer
1911 // mailto:boyerf@iro.umontreal.ca
1912 // http://www.iro.umontreal.ca/~boyerf
1914 // The code has been optimized for Intel processors
1915 // (takes a lot of time to convert float to and from iternal FPU
1918 // It is a simple "factorization" of the IDCT matrix.
1920 // 9 point IDCT on even indices
1922 // 5 points on odd indices (not realy an IDCT)
1923 @LOC("THIS,LayerIIIDecoder.OUT") float i00 = tsOutCopy[0] + tsOutCopy[0];
1924 @LOC("THIS,LayerIIIDecoder.OUT") float iip12 = i00 + tsOutCopy[12];
1927 iip12 + tsOutCopy[4] * 1.8793852415718f + tsOutCopy[8] * 1.532088886238f + tsOutCopy[16]
1928 * 0.34729635533386f;
1929 tmp1 = i00 + tsOutCopy[4] - tsOutCopy[8] - tsOutCopy[12] - tsOutCopy[12] - tsOutCopy[16];
1931 iip12 - tsOutCopy[4] * 0.34729635533386f - tsOutCopy[8] * 1.8793852415718f
1932 + tsOutCopy[16] * 1.532088886238f;
1934 iip12 - tsOutCopy[4] * 1.532088886238f + tsOutCopy[8] * 0.34729635533386f - tsOutCopy[16]
1936 tmp4 = tsOutCopy[0] - tsOutCopy[4] + tsOutCopy[8] - tsOutCopy[12] + tsOutCopy[16];
1938 // 4 points on even indices
1939 @LOC("THIS,LayerIIIDecoder.OUT") float i66_ = tsOutCopy[6] * 1.732050808f; // Sqrt[3]
1942 tsOutCopy[2] * 1.9696155060244f + i66_ + tsOutCopy[10] * 1.2855752193731f + tsOutCopy[14]
1943 * 0.68404028665134f;
1944 tmp1_ = (tsOutCopy[2] - tsOutCopy[10] - tsOutCopy[14]) * 1.732050808f;
1946 tsOutCopy[2] * 1.2855752193731f - i66_ - tsOutCopy[10] * 0.68404028665134f
1947 + tsOutCopy[14] * 1.9696155060244f;
1949 tsOutCopy[2] * 0.68404028665134f - i66_ + tsOutCopy[10] * 1.9696155060244f
1950 - tsOutCopy[14] * 1.2855752193731f;
1952 // 9 point IDCT on odd indices
1953 // 5 points on odd indices (not realy an IDCT)
1954 @LOC("THIS,LayerIIIDecoder.OUT") float i0 = tsOutCopy[0 + 1] + tsOutCopy[0 + 1];
1955 @LOC("THIS,LayerIIIDecoder.OUT") float i0p12 = i0 + tsOutCopy[12 + 1];
1958 i0p12 + tsOutCopy[4 + 1] * 1.8793852415718f + tsOutCopy[8 + 1] * 1.532088886238f
1959 + tsOutCopy[16 + 1] * 0.34729635533386f;
1961 i0 + tsOutCopy[4 + 1] - tsOutCopy[8 + 1] - tsOutCopy[12 + 1] - tsOutCopy[12 + 1]
1962 - tsOutCopy[16 + 1];
1964 i0p12 - tsOutCopy[4 + 1] * 0.34729635533386f - tsOutCopy[8 + 1] * 1.8793852415718f
1965 + tsOutCopy[16 + 1] * 1.532088886238f;
1967 i0p12 - tsOutCopy[4 + 1] * 1.532088886238f + tsOutCopy[8 + 1] * 0.34729635533386f
1968 - tsOutCopy[16 + 1] * 1.8793852415718f;
1970 (tsOutCopy[0 + 1] - tsOutCopy[4 + 1] + tsOutCopy[8 + 1] - tsOutCopy[12 + 1] + tsOutCopy[16 + 1]) * 0.707106781f; // Twiddled
1972 // 4 points on even indices
1973 @LOC("THIS,LayerIIIDecoder.OUT") float i6_ = tsOutCopy[6 + 1] * 1.732050808f; // Sqrt[3]
1976 tsOutCopy[2 + 1] * 1.9696155060244f + i6_ + tsOutCopy[10 + 1] * 1.2855752193731f
1977 + tsOutCopy[14 + 1] * 0.68404028665134f;
1978 tmp1_o = (tsOutCopy[2 + 1] - tsOutCopy[10 + 1] - tsOutCopy[14 + 1]) * 1.732050808f;
1980 tsOutCopy[2 + 1] * 1.2855752193731f - i6_ - tsOutCopy[10 + 1] * 0.68404028665134f
1981 + tsOutCopy[14 + 1] * 1.9696155060244f;
1983 tsOutCopy[2 + 1] * 0.68404028665134f - i6_ + tsOutCopy[10 + 1] * 1.9696155060244f
1984 - tsOutCopy[14 + 1] * 1.2855752193731f;
1986 // Twiddle factors on odd indices
1988 // Butterflies on 9 point IDCT's
1990 // twiddle factors for 36 point IDCT
1992 @LOC("THIS,LayerIIIDecoder.OUT") float e;
1993 @LOC("THIS,LayerIIIDecoder.OUT") float o;
1995 o = (tmp0o + tmp0_o) * 0.501909918f;
1999 o = (tmp1o + tmp1_o) * 0.517638090f;
2003 o = (tmp2o + tmp2_o) * 0.551688959f;
2007 o = (tmp3o + tmp3_o) * 0.610387294f;
2010 tmpf_4 = tmp4 + tmp4o;
2011 tmpf_13 = tmp4 - tmp4o;
2013 o = (tmp3o - tmp3_o) * 0.871723397f;
2017 o = (tmp2o - tmp2_o) * 1.183100792f;
2021 o = (tmp1o - tmp1_o) * 1.931851653f;
2025 o = (tmp0o - tmp0_o) * 5.736856623f;
2029 // end 36 point IDCT */
2030 // shift to modified IDCT
2031 // win_bt = win[block_type]; //substituted this so that a new area does
2032 // not become created
2034 rawout[0] = -tmpf_9 * win[block_type][0];
2035 rawout[1] = -tmpf_10 * win[block_type][1];
2036 rawout[2] = -tmpf_11 * win[block_type][2];
2037 rawout[3] = -tmpf_12 * win[block_type][3];
2038 rawout[4] = -tmpf_13 * win[block_type][4];
2039 rawout[5] = -tmpf_14 * win[block_type][5];
2040 rawout[6] = -tmpf_15 * win[block_type][6];
2041 rawout[7] = -tmpf_16 * win[block_type][7];
2042 rawout[8] = -tmpf_17 * win[block_type][8];
2043 rawout[9] = tmpf_17 * win[block_type][9];
2044 rawout[10] = tmpf_16 * win[block_type][10];
2045 rawout[11] = tmpf_15 * win[block_type][11];
2046 rawout[12] = tmpf_14 * win[block_type][12];
2047 rawout[13] = tmpf_13 * win[block_type][13];
2048 rawout[14] = tmpf_12 * win[block_type][14];
2049 rawout[15] = tmpf_11 * win[block_type][15];
2050 rawout[16] = tmpf_10 * win[block_type][16];
2051 rawout[17] = tmpf_9 * win[block_type][17];
2052 rawout[18] = tmpf_8 * win[block_type][18];
2053 rawout[19] = tmpf_7 * win[block_type][19];
2054 rawout[20] = tmpf_6 * win[block_type][20];
2055 rawout[21] = tmpf_5 * win[block_type][21];
2056 rawout[22] = tmpf_4 * win[block_type][22];
2057 rawout[23] = tmpf_3 * win[block_type][23];
2058 rawout[24] = tmpf_2 * win[block_type][24];
2059 rawout[25] = tmpf_1 * win[block_type][25];
2060 rawout[26] = tmpf_0 * win[block_type][26];
2061 rawout[27] = tmpf_0 * win[block_type][27];
2062 rawout[28] = tmpf_1 * win[block_type][28];
2063 rawout[29] = tmpf_2 * win[block_type][29];
2064 rawout[30] = tmpf_3 * win[block_type][30];
2065 rawout[31] = tmpf_4 * win[block_type][31];
2066 rawout[32] = tmpf_5 * win[block_type][32];
2067 rawout[33] = tmpf_6 * win[block_type][33];
2068 rawout[34] = tmpf_7 * win[block_type][34];
2069 rawout[35] = tmpf_8 * win[block_type][35];
2075 private int counter = 0;
2076 private static final int SSLIMIT = 18;
2077 private static final int SBLIMIT = 32;
2079 // Size of the table of whole numbers raised to 4/3 power.
2080 // This may be adjusted for performance without any problems.
2081 // public static final int POW_TABLE_LIMIT=512;
2083 /************************************************************/
2085 /************************************************************/
2099 @LATTICE("THIS<IN,THISLOC=THIS")
2100 public SBI(@LOC("IN") int[] thel, @LOC("IN") int[] thes) {
2107 static class gr_info_s {
2109 public int part2_3_length = 0;
2111 public int big_values = 0;
2113 public int global_gain = 0;
2115 public int scalefac_compress = 0;
2117 public int window_switching_flag = 0;
2119 public int block_type = 0;
2121 public int mixed_block_flag = 0;
2123 public int[] table_select;
2125 public int[] subblock_gain;
2127 public int region0_count = 0;
2129 public int region1_count = 0;
2131 public int preflag = 0;
2133 public int scalefac_scale = 0;
2135 public int count1table_select = 0;
2140 public gr_info_s() {
2141 table_select = new int[3];
2142 subblock_gain = new int[3];
2146 @LATTICE("GR2<GR1,GR1<GR,GR2*")
2147 static class temporaire {
2151 public gr_info_s[] gr;
2156 public temporaire() {
2158 gr = new gr_info_s[2];
2159 gr[0] = new gr_info_s();
2160 gr[1] = new gr_info_s();
2165 static class III_side_info_t {
2168 public int main_data_begin = 0;
2170 public int private_bits = 0;
2172 public temporaire[] ch;
2177 public III_side_info_t() {
2178 ch = new temporaire[2];
2179 ch[0] = new temporaire();
2180 ch[1] = new temporaire();
2185 static class temporaire2 {
2187 public int[] l; /* [cb] */
2189 public int[][] s; /* [window][cb] */
2194 public temporaire2() {
2200 // class III_scalefac_t
2202 // public temporaire2[] tab;
2204 // * Dummy Constructor
2206 // public III_scalefac_t()
2208 // tab = new temporaire2[2];
2212 private static final int slen[][] = { { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
2213 { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 } };
2215 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,
2219 private SBI[] sfBandIndex; // Init in the constructor.
2221 public static final float two_to_negative_half_pow[] = { 1.0000000000E+00f, 7.0710678119E-01f,
2222 5.0000000000E-01f, 3.5355339059E-01f, 2.5000000000E-01f, 1.7677669530E-01f,
2223 1.2500000000E-01f, 8.8388347648E-02f, 6.2500000000E-02f, 4.4194173824E-02f,
2224 3.1250000000E-02f, 2.2097086912E-02f, 1.5625000000E-02f, 1.1048543456E-02f,
2225 7.8125000000E-03f, 5.5242717280E-03f, 3.9062500000E-03f, 2.7621358640E-03f,
2226 1.9531250000E-03f, 1.3810679320E-03f, 9.7656250000E-04f, 6.9053396600E-04f,
2227 4.8828125000E-04f, 3.4526698300E-04f, 2.4414062500E-04f, 1.7263349150E-04f,
2228 1.2207031250E-04f, 8.6316745750E-05f, 6.1035156250E-05f, 4.3158372875E-05f,
2229 3.0517578125E-05f, 2.1579186438E-05f, 1.5258789062E-05f, 1.0789593219E-05f,
2230 7.6293945312E-06f, 5.3947966094E-06f, 3.8146972656E-06f, 2.6973983047E-06f,
2231 1.9073486328E-06f, 1.3486991523E-06f, 9.5367431641E-07f, 6.7434957617E-07f,
2232 4.7683715820E-07f, 3.3717478809E-07f, 2.3841857910E-07f, 1.6858739404E-07f,
2233 1.1920928955E-07f, 8.4293697022E-08f, 5.9604644775E-08f, 4.2146848511E-08f,
2234 2.9802322388E-08f, 2.1073424255E-08f, 1.4901161194E-08f, 1.0536712128E-08f,
2235 7.4505805969E-09f, 5.2683560639E-09f, 3.7252902985E-09f, 2.6341780319E-09f,
2236 1.8626451492E-09f, 1.3170890160E-09f, 9.3132257462E-10f, 6.5854450798E-10f,
2237 4.6566128731E-10f, 3.2927225399E-10f };
2239 public static final float t_43[] = create_t_43();
2242 static private float[] create_t_43() {
2243 @LOC("OUT") float[] t43 = new float[8192];
2244 final double d43 = (4.0 / 3.0);
2246 for (@LOC("SH") int i = 0; i < 8192; i++) {
2247 t43[i] = (float) Math.pow(i, d43);
2252 public static final float io[][] = {
2253 { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f,
2254 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f,
2255 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f,
2256 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f,
2257 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f,
2258 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f,
2259 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f,
2260 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f },
2261 { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f,
2262 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f,
2263 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f,
2264 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f,
2265 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f,
2266 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f,
2267 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f,
2268 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } };
2270 public static final float TAN12[] = { 0.0f, 0.26794919f, 0.57735027f, 1.0f, 1.73205081f,
2271 3.73205081f, 9.9999999e10f, -3.73205081f, -1.73205081f, -1.0f, -0.57735027f, -0.26794919f,
2272 0.0f, 0.26794919f, 0.57735027f, 1.0f };
2274 // REVIEW: in java, the array lookup may well be slower than
2275 // the actual calculation
2278 * private static final int ss_div[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2279 * 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,
2280 * 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,
2281 * 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,
2282 * 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,
2283 * 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,
2284 * 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,
2285 * 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
2286 * 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
2287 * 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
2288 * 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
2289 * 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14,
2290 * 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
2291 * 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
2292 * 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
2293 * 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
2294 * 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
2295 * 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
2296 * 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
2297 * 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
2298 * 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
2299 * 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25,
2300 * 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26,
2301 * 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27,
2302 * 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
2303 * 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
2304 * 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30,
2305 * 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31,
2306 * 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 };
2308 * // 576 % 18 private static final int ss_mod[] = { 0, 1, 2, 3, 4, 5, 6, 7,
2309 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2310 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2311 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2312 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2313 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2314 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2315 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2316 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2317 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2318 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2319 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2320 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2321 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2322 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2323 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2324 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2325 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2326 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2327 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2328 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2329 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2330 * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
2331 * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
2332 * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
2333 * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
2334 * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
2335 * 12, 13, 14, 15, 16, 17 };
2338 private static/* final */int reorder_table[][]/* = loadReorderTable() */; // SZD:
2347 * Loads the data for the reorder
2350 * private static int[][] loadReorderTable() // SZD: table will be generated {
2351 * try { Class elemType = int[][].class.getComponentType(); Object o =
2352 * JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6);
2353 * return (int[][])o; } catch (IOException ex) { throw new
2354 * ExceptionInInitializerError(ex); } }
2356 @LATTICE("OUT<J,J<I,I<SE,I<WIN,SE<SF,SE<SFB,WIN<SFB,J*,I*,WIN*,SFB*")
2357 static int[] reorder(@LOC("SF") int scalefac_band[]) { // SZD: converted from
2359 @LOC("J") int j = 0;
2360 @LOC("OUT") int ix[] = new int[576];
2361 for (int sfb = 0; sfb < 13; sfb++) {
2362 int start = scalefac_band[sfb];
2363 int end = scalefac_band[sfb + 1];
2364 for (int window = 0; window < 3; window++)
2365 for (int i = start; i < end; i++)
2366 ix[3 * i + window] = j++;
2372 * static final int reorder_table_data[][]; = { { 0, 4, 8, 1, 5, 9, 2, 6, 10,
2373 * 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25,
2374 * 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45,
2375 * 51, 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, 63, 69,
2376 * 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, 90, 75, 83, 91, 76,
2377 * 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, 96,106,116, 97,107,117,
2378 * 98,108,118, 99,109,119,100,110,120,101,
2379 * 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140,
2380 * 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159,
2381 * 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137,
2382 * 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188,
2383 * 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211,
2384 * 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181,
2385 * 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248,
2386 * 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279,
2387 * 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233,
2388 * 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264,
2389 * 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295,
2390 * 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301,
2391 * 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338,
2392 * 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375,
2393 * 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317,
2394 * 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354,
2395 * 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391,
2396 * 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397,
2397 * 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444,
2398 * 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491,
2399 * 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413,
2400 * 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460,
2401 * 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507,
2402 * 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429,
2403 * 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476,
2404 * 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559,
2405 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2406 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2407 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2408 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2409 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2410 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2411 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2412 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2413 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2414 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2415 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2416 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2417 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2418 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2419 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2420 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2421 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2422 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2423 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2424 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2425 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2426 * 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346,
2427 * 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383,
2428 * 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325,
2429 * 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362,
2430 * 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399,
2431 * 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341,
2432 * 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454,
2433 * 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503,
2434 * 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421,
2435 * 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470,
2436 * 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519,
2437 * 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437,
2438 * 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486,
2439 * 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535,
2440 * 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541,
2441 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2442 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, { 0, 4,
2443 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2444 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
2445 * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
2446 * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
2447 * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
2448 * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
2449 * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
2450 * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
2451 * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
2452 * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
2453 * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
2454 * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
2455 * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
2456 * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
2457 * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
2458 * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
2459 * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
2460 * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
2461 * 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344,
2462 * 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379,
2463 * 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325,
2464 * 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360,
2465 * 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395,
2466 * 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341,
2467 * 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446,
2468 * 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491,
2469 * 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417,
2470 * 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462,
2471 * 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507,
2472 * 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433,
2473 * 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478,
2474 * 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559,
2475 * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
2476 * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
2477 * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
2478 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2479 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2480 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2481 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2482 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, 92,102,112,
2483 * 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, 107,117, 98,108,118,
2484 * 99,109,119,120,132,144,121,133,145,122,134,
2485 * 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151,
2486 * 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157,
2487 * 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176,
2488 * 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195,
2489 * 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201,
2490 * 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224,
2491 * 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247,
2492 * 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253,
2493 * 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280,
2494 * 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307,
2495 * 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269,
2496 * 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348,
2497 * 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383,
2498 * 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329,
2499 * 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364,
2500 * 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399,
2501 * 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345,
2502 * 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466,
2503 * 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527,
2504 * 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421,
2505 * 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482,
2506 * 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543,
2507 * 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437,
2508 * 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498,
2509 * 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559,
2510 * 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453,
2511 * 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514,
2512 * 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, { 0, 4,
2513 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2514 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2515 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2516 * 58, 64, 53, 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76,
2517 * 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, 88, 98,108,
2518 * 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93,
2519 * 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130,
2520 * 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147,
2521 * 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153,
2522 * 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172,
2523 * 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191,
2524 * 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197,
2525 * 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218,
2526 * 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239,
2527 * 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245,
2528 * 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270,
2529 * 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295,
2530 * 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301,
2531 * 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332,
2532 * 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363,
2533 * 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317,
2534 * 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348,
2535 * 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511,
2536 * 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385,
2537 * 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456,
2538 * 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527,
2539 * 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401,
2540 * 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472,
2541 * 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543,
2542 * 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417,
2543 * 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488,
2544 * 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559,
2545 * 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433,
2546 * 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504,
2547 * 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, { 0, 4,
2548 * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
2549 * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
2550 * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
2551 * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
2552 * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, 92,104,116,
2553 * 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, 109,121, 98,110,122,
2554 * 99,111,123,100,112,124,101,113,125,126,142,
2555 * 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163,
2556 * 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137,
2557 * 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194,
2558 * 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219,
2559 * 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185,
2560 * 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210,
2561 * 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287,
2562 * 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241,
2563 * 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272,
2564 * 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303,
2565 * 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257,
2566 * 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348,
2567 * 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387,
2568 * 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325,
2569 * 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364,
2570 * 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403,
2571 * 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341,
2572 * 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456,
2573 * 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503,
2574 * 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425,
2575 * 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472,
2576 * 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519,
2577 * 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441,
2578 * 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488,
2579 * 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535,
2580 * 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541,
2581 * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
2582 * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} };
2585 private static final float cs[] = { 0.857492925712f, 0.881741997318f, 0.949628649103f,
2586 0.983314592492f, 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f };
2588 private static final float ca[] = { -0.5144957554270f, -0.4717319685650f, -0.3133774542040f,
2589 -0.1819131996110f, -0.0945741925262f, -0.0409655828852f, -0.0141985685725f,
2590 -0.00369997467375f };
2592 /************************************************************/
2593 /* END OF L3TABLE */
2594 /************************************************************/
2596 /************************************************************/
2598 /************************************************************/
2600 /***************************************************************/
2602 /***************************************************************/
2604 /***************************************************************/
2606 /***************************************************************/
2607 public static final float win[][] = {
2608 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2609 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2610 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2611 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2612 -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2613 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2614 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2615 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2616 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f },
2618 { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
2619 -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
2620 -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
2621 -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
2622 -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f,
2623 -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f,
2624 -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f,
2625 -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f,
2626 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2628 { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f,
2629 -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f,
2630 -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f,
2631 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2632 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2633 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2634 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2635 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2636 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
2638 { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
2639 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f,
2640 -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f,
2641 -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f,
2642 -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
2643 -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
2644 -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
2645 -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
2646 -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } };
2648 /***************************************************************/
2649 /* END OF INV_MDCT */
2650 /***************************************************************/
2663 @LATTICE("THIS<IN,THISLOC=THIS")
2664 public Sftable(@LOC("IN") int[] thel, @LOC("IN") int[] thes) {
2671 public Sftable sftable;
2673 public static final int nr_of_sfb_block[][][] = {
2674 { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } },
2675 { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } },
2676 { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } },
2677 { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } },
2678 { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } },
2679 { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } } };