diff options
Diffstat (limited to 'songdbj/javazoom/jl/decoder/LayerIIIDecoder.java')
-rw-r--r-- | songdbj/javazoom/jl/decoder/LayerIIIDecoder.java | 2439 |
1 files changed, 2439 insertions, 0 deletions
diff --git a/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java b/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java new file mode 100644 index 0000000000..602badf0f2 --- /dev/null +++ b/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java | |||
@@ -0,0 +1,2439 @@ | |||
1 | /* | ||
2 | * 11/19/04 1.0 moved to LGPL. | ||
3 | * | ||
4 | * 18/06/01 Michael Scheerer, Fixed bugs which causes | ||
5 | * negative indexes in method huffmann_decode and in method | ||
6 | * dequanisize_sample. | ||
7 | * | ||
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 | ||
15 | * well. | ||
16 | * | ||
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. | ||
23 | * | ||
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. | ||
28 | * | ||
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 | *---------------------------------------------------------------------- | ||
33 | */ | ||
34 | |||
35 | package javazoom.jl.decoder; | ||
36 | |||
37 | /** | ||
38 | * Class Implementing Layer 3 Decoder. | ||
39 | * | ||
40 | * @since 0.0 | ||
41 | */ | ||
42 | final class LayerIIIDecoder implements FrameDecoder | ||
43 | { | ||
44 | final double d43 = (4.0/3.0); | ||
45 | |||
46 | public int[] scalefac_buffer; | ||
47 | |||
48 | // MDM: removed, as this wasn't being used. | ||
49 | //private float CheckSumOut1d = 0.0f; | ||
50 | private int CheckSumHuff = 0; | ||
51 | private int[] is_1d; | ||
52 | private float[][][] ro; | ||
53 | private float[][][] lr; | ||
54 | private float[] out_1d; | ||
55 | private float[][] prevblck; | ||
56 | private float[][] k; | ||
57 | private int[] nonzero; | ||
58 | private Bitstream stream; | ||
59 | private Header header; | ||
60 | private SynthesisFilter filter1, filter2; | ||
61 | private Obuffer buffer; | ||
62 | private int which_channels; | ||
63 | private BitReserve br; | ||
64 | private III_side_info_t si; | ||
65 | |||
66 | private temporaire2[] III_scalefac_t; | ||
67 | private temporaire2[] scalefac; | ||
68 | // private III_scalefac_t scalefac; | ||
69 | |||
70 | private int max_gr; | ||
71 | private int frame_start; | ||
72 | private int part2_start; | ||
73 | private int channels; | ||
74 | private int first_channel; | ||
75 | private int last_channel; | ||
76 | private int sfreq; | ||
77 | |||
78 | |||
79 | /** | ||
80 | * Constructor. | ||
81 | */ | ||
82 | // REVIEW: these constructor arguments should be moved to the | ||
83 | // decodeFrame() method, where possible, so that one | ||
84 | public LayerIIIDecoder(Bitstream stream0, Header header0, | ||
85 | SynthesisFilter filtera, SynthesisFilter filterb, | ||
86 | Obuffer buffer0, int which_ch0) | ||
87 | { | ||
88 | huffcodetab.inithuff(); | ||
89 | is_1d = new int[SBLIMIT*SSLIMIT+4]; | ||
90 | ro = new float[2][SBLIMIT][SSLIMIT]; | ||
91 | lr = new float[2][SBLIMIT][SSLIMIT]; | ||
92 | out_1d = new float[SBLIMIT*SSLIMIT]; | ||
93 | prevblck = new float[2][SBLIMIT*SSLIMIT]; | ||
94 | k = new float[2][SBLIMIT*SSLIMIT]; | ||
95 | nonzero = new int[2]; | ||
96 | |||
97 | //III_scalefact_t | ||
98 | III_scalefac_t = new temporaire2[2]; | ||
99 | III_scalefac_t[0] = new temporaire2(); | ||
100 | III_scalefac_t[1] = new temporaire2(); | ||
101 | scalefac = III_scalefac_t; | ||
102 | // L3TABLE INIT | ||
103 | |||
104 | sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices | ||
105 | int[] l0 = {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}; | ||
106 | int[] s0 = {0,4,8,12,18,24,32,42,56,74,100,132,174,192}; | ||
107 | int[] l1 = {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,330,394,464,540,576}; | ||
108 | int[] s1 = {0,4,8,12,18,26,36,48,62,80,104,136,180,192}; | ||
109 | int[] l2 = {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}; | ||
110 | int[] s2 = {0,4,8,12,18,26,36,48,62,80,104,134,174,192}; | ||
111 | |||
112 | int[] l3 = {0,4,8,12,16,20,24,30,36,44,52,62,74,90,110,134,162,196,238,288,342,418,576}; | ||
113 | int[] s3 = {0,4,8,12,16,22,30,40,52,66,84,106,136,192}; | ||
114 | int[] l4 = {0,4,8,12,16,20,24,30,36,42,50,60,72,88,106,128,156,190,230,276,330,384,576}; | ||
115 | int[] s4 = {0,4,8,12,16,22,28,38,50,64,80,100,126,192}; | ||
116 | int[] l5 = {0,4,8,12,16,20,24,30,36,44,54,66,82,102,126,156,194,240,296,364,448,550,576}; | ||
117 | int[] s5 = {0,4,8,12,16,22,30,42,58,78,104,138,180,192}; | ||
118 | // SZD: MPEG2.5 | ||
119 | int[] l6 = {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}; | ||
120 | int[] s6 = {0,4,8,12,18,26,36,48,62,80,104,134,174,192}; | ||
121 | int[] l7 = {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}; | ||
122 | int[] s7 = {0,4,8,12,18,26,36,48,62,80,104,134,174,192}; | ||
123 | int[] l8 = {0,12,24,36,48,60,72,88,108,132,160,192,232,280,336,400,476,566,568,570,572,574,576}; | ||
124 | int[] s8 = {0,8,16,24,36,52,72,96,124,160,162,164,166,192}; | ||
125 | |||
126 | sfBandIndex[0]= new SBI(l0,s0); | ||
127 | sfBandIndex[1]= new SBI(l1,s1); | ||
128 | sfBandIndex[2]= new SBI(l2,s2); | ||
129 | |||
130 | sfBandIndex[3]= new SBI(l3,s3); | ||
131 | sfBandIndex[4]= new SBI(l4,s4); | ||
132 | sfBandIndex[5]= new SBI(l5,s5); | ||
133 | //SZD: MPEG2.5 | ||
134 | sfBandIndex[6]= new SBI(l6,s6); | ||
135 | sfBandIndex[7]= new SBI(l7,s7); | ||
136 | sfBandIndex[8]= new SBI(l8,s8); | ||
137 | // END OF L3TABLE INIT | ||
138 | |||
139 | if(reorder_table == null) { // SZD: generate LUT | ||
140 | reorder_table = new int[9][]; | ||
141 | for(int i = 0; i < 9; i++) | ||
142 | reorder_table[i] = reorder(sfBandIndex[i].s); | ||
143 | } | ||
144 | |||
145 | // Sftable | ||
146 | int[] ll0 = {0, 6, 11, 16, 21}; | ||
147 | int[] ss0 = {0, 6, 12}; | ||
148 | sftable = new Sftable(ll0,ss0); | ||
149 | // END OF Sftable | ||
150 | |||
151 | // scalefac_buffer | ||
152 | scalefac_buffer = new int[54]; | ||
153 | // END OF scalefac_buffer | ||
154 | |||
155 | stream = stream0; | ||
156 | header = header0; | ||
157 | filter1 = filtera; | ||
158 | filter2 = filterb; | ||
159 | buffer = buffer0; | ||
160 | which_channels = which_ch0; | ||
161 | |||
162 | frame_start = 0; | ||
163 | channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2; | ||
164 | max_gr = (header.version() == Header.MPEG1) ? 2 : 1; | ||
165 | |||
166 | sfreq = header.sample_frequency() + | ||
167 | ((header.version() == Header.MPEG1) ? 3 : | ||
168 | (header.version() == Header.MPEG25_LSF) ? 6 : 0); // SZD | ||
169 | |||
170 | if (channels == 2) | ||
171 | { | ||
172 | switch (which_channels) | ||
173 | { | ||
174 | case OutputChannels.LEFT_CHANNEL: | ||
175 | case OutputChannels.DOWNMIX_CHANNELS: | ||
176 | first_channel = last_channel = 0; | ||
177 | break; | ||
178 | |||
179 | case OutputChannels.RIGHT_CHANNEL: | ||
180 | first_channel = last_channel = 1; | ||
181 | break; | ||
182 | |||
183 | case OutputChannels.BOTH_CHANNELS: | ||
184 | default: | ||
185 | first_channel = 0; | ||
186 | last_channel = 1; | ||
187 | break; | ||
188 | } | ||
189 | } | ||
190 | else | ||
191 | { | ||
192 | first_channel = last_channel = 0; | ||
193 | } | ||
194 | |||
195 | for(int ch=0;ch<2;ch++) | ||
196 | for (int j=0; j<576; j++) | ||
197 | prevblck[ch][j] = 0.0f; | ||
198 | |||
199 | nonzero[0] = nonzero[1] = 576; | ||
200 | |||
201 | br = new BitReserve(); | ||
202 | si = new III_side_info_t(); | ||
203 | } | ||
204 | |||
205 | /** | ||
206 | * Notify decoder that a seek is being made. | ||
207 | */ | ||
208 | public void seek_notify() | ||
209 | { | ||
210 | frame_start = 0; | ||
211 | for(int ch=0;ch<2;ch++) | ||
212 | for (int j=0; j<576; j++) | ||
213 | prevblck[ch][j] = 0.0f; | ||
214 | br = new BitReserve(); | ||
215 | } | ||
216 | |||
217 | public void decodeFrame() | ||
218 | { | ||
219 | decode(); | ||
220 | } | ||
221 | |||
222 | /** | ||
223 | * Decode one frame, filling the buffer with the output samples. | ||
224 | */ | ||
225 | |||
226 | // subband samples are buffered and passed to the | ||
227 | // SynthesisFilter in one go. | ||
228 | private float[] samples1 = new float[32]; | ||
229 | private float[] samples2 = new float[32]; | ||
230 | |||
231 | public void decode() | ||
232 | { | ||
233 | int nSlots = header.slots(); | ||
234 | int flush_main; | ||
235 | int gr, ch, ss, sb, sb18; | ||
236 | int main_data_end; | ||
237 | int bytes_to_discard; | ||
238 | int i; | ||
239 | |||
240 | get_side_info(); | ||
241 | |||
242 | for (i=0; i<nSlots; i++) | ||
243 | br.hputbuf(stream.get_bits(8)); | ||
244 | |||
245 | main_data_end = br.hsstell() >>> 3; // of previous frame | ||
246 | |||
247 | if ((flush_main = (br.hsstell() & 7)) != 0) { | ||
248 | br.hgetbits(8 - flush_main); | ||
249 | main_data_end++; | ||
250 | } | ||
251 | |||
252 | bytes_to_discard = frame_start - main_data_end | ||
253 | - si.main_data_begin; | ||
254 | |||
255 | frame_start += nSlots; | ||
256 | |||
257 | if (bytes_to_discard < 0) | ||
258 | return; | ||
259 | |||
260 | if (main_data_end > 4096) { | ||
261 | frame_start -= 4096; | ||
262 | br.rewindNbytes(4096); | ||
263 | } | ||
264 | |||
265 | for (; bytes_to_discard > 0; bytes_to_discard--) | ||
266 | br.hgetbits(8); | ||
267 | |||
268 | for (gr=0;gr<max_gr;gr++) { | ||
269 | |||
270 | for (ch=0; ch<channels; ch++) { | ||
271 | part2_start = br.hsstell(); | ||
272 | |||
273 | if (header.version() == Header.MPEG1) | ||
274 | get_scale_factors(ch, gr); | ||
275 | else // MPEG-2 LSF, SZD: MPEG-2.5 LSF | ||
276 | get_LSF_scale_factors(ch, gr); | ||
277 | |||
278 | huffman_decode(ch, gr); | ||
279 | // System.out.println("CheckSum HuffMan = " + CheckSumHuff); | ||
280 | dequantize_sample(ro[ch], ch, gr); | ||
281 | } | ||
282 | |||
283 | stereo(gr); | ||
284 | |||
285 | if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) | ||
286 | do_downmix(); | ||
287 | |||
288 | for (ch=first_channel; ch<=last_channel; ch++) { | ||
289 | |||
290 | reorder(lr[ch], ch, gr); | ||
291 | antialias(ch, gr); | ||
292 | //for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d + out_1d[hb]; | ||
293 | //System.out.println("CheckSumOut1d = "+CheckSumOut1d); | ||
294 | |||
295 | hybrid(ch, gr); | ||
296 | |||
297 | //for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d + out_1d[hb]; | ||
298 | //System.out.println("CheckSumOut1d = "+CheckSumOut1d); | ||
299 | |||
300 | for (sb18=18;sb18<576;sb18+=36) // Frequency inversion | ||
301 | for (ss=1;ss<SSLIMIT;ss+=2) | ||
302 | out_1d[sb18 + ss] = -out_1d[sb18 + ss]; | ||
303 | |||
304 | if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) { | ||
305 | for (ss=0;ss<SSLIMIT;ss++) { // Polyphase synthesis | ||
306 | sb = 0; | ||
307 | for (sb18=0; sb18<576; sb18+=18) { | ||
308 | samples1[sb] = out_1d[sb18+ss]; | ||
309 | //filter1.input_sample(out_1d[sb18+ss], sb); | ||
310 | sb++; | ||
311 | } | ||
312 | filter1.input_samples(samples1); | ||
313 | filter1.calculate_pcm_samples(buffer); | ||
314 | } | ||
315 | } else { | ||
316 | for (ss=0;ss<SSLIMIT;ss++) { // Polyphase synthesis | ||
317 | sb = 0; | ||
318 | for (sb18=0; sb18<576; sb18+=18) { | ||
319 | samples2[sb] = out_1d[sb18+ss]; | ||
320 | //filter2.input_sample(out_1d[sb18+ss], sb); | ||
321 | sb++; | ||
322 | } | ||
323 | filter2.input_samples(samples2); | ||
324 | filter2.calculate_pcm_samples(buffer); | ||
325 | } | ||
326 | |||
327 | } | ||
328 | } // channels | ||
329 | } // granule | ||
330 | |||
331 | |||
332 | // System.out.println("Counter = ................................."+counter); | ||
333 | //if (counter < 609) | ||
334 | //{ | ||
335 | counter++; | ||
336 | buffer.write_buffer(1); | ||
337 | //} | ||
338 | //else if (counter == 609) | ||
339 | //{ | ||
340 | // buffer.close(); | ||
341 | // counter++; | ||
342 | //} | ||
343 | //else | ||
344 | //{ | ||
345 | //} | ||
346 | |||
347 | } | ||
348 | |||
349 | /** | ||
350 | * Reads the side info from the stream, assuming the entire. | ||
351 | * frame has been read already. | ||
352 | * Mono : 136 bits (= 17 bytes) | ||
353 | * Stereo : 256 bits (= 32 bytes) | ||
354 | */ | ||
355 | private boolean get_side_info() | ||
356 | { | ||
357 | int ch, gr; | ||
358 | if (header.version() == Header.MPEG1) | ||
359 | { | ||
360 | |||
361 | si.main_data_begin = stream.get_bits(9); | ||
362 | if (channels == 1) | ||
363 | si.private_bits = stream.get_bits(5); | ||
364 | else si.private_bits = stream.get_bits(3); | ||
365 | |||
366 | for (ch=0; ch<channels; ch++) { | ||
367 | si.ch[ch].scfsi[0] = stream.get_bits(1); | ||
368 | si.ch[ch].scfsi[1] = stream.get_bits(1); | ||
369 | si.ch[ch].scfsi[2] = stream.get_bits(1); | ||
370 | si.ch[ch].scfsi[3] = stream.get_bits(1); | ||
371 | } | ||
372 | |||
373 | for (gr=0; gr<2; gr++) { | ||
374 | for (ch=0; ch<channels; ch++) { | ||
375 | si.ch[ch].gr[gr].part2_3_length = stream.get_bits(12); | ||
376 | si.ch[ch].gr[gr].big_values = stream.get_bits(9); | ||
377 | si.ch[ch].gr[gr].global_gain = stream.get_bits(8); | ||
378 | si.ch[ch].gr[gr].scalefac_compress = stream.get_bits(4); | ||
379 | si.ch[ch].gr[gr].window_switching_flag = stream.get_bits(1); | ||
380 | if ((si.ch[ch].gr[gr].window_switching_flag) != 0) { | ||
381 | si.ch[ch].gr[gr].block_type = stream.get_bits(2); | ||
382 | si.ch[ch].gr[gr].mixed_block_flag = stream.get_bits(1); | ||
383 | |||
384 | si.ch[ch].gr[gr].table_select[0] = stream.get_bits(5); | ||
385 | si.ch[ch].gr[gr].table_select[1] = stream.get_bits(5); | ||
386 | |||
387 | si.ch[ch].gr[gr].subblock_gain[0] = stream.get_bits(3); | ||
388 | si.ch[ch].gr[gr].subblock_gain[1] = stream.get_bits(3); | ||
389 | si.ch[ch].gr[gr].subblock_gain[2] = stream.get_bits(3); | ||
390 | |||
391 | // Set region_count parameters since they are implicit in this case. | ||
392 | |||
393 | if (si.ch[ch].gr[gr].block_type == 0) { | ||
394 | // Side info bad: block_type == 0 in split block | ||
395 | return false; | ||
396 | } else if (si.ch[ch].gr[gr].block_type == 2 | ||
397 | && si.ch[ch].gr[gr].mixed_block_flag == 0) { | ||
398 | si.ch[ch].gr[gr].region0_count = 8; | ||
399 | } else { | ||
400 | si.ch[ch].gr[gr].region0_count = 7; | ||
401 | } | ||
402 | si.ch[ch].gr[gr].region1_count = 20 - | ||
403 | si.ch[ch].gr[gr].region0_count; | ||
404 | } else { | ||
405 | si.ch[ch].gr[gr].table_select[0] = stream.get_bits(5); | ||
406 | si.ch[ch].gr[gr].table_select[1] = stream.get_bits(5); | ||
407 | si.ch[ch].gr[gr].table_select[2] = stream.get_bits(5); | ||
408 | si.ch[ch].gr[gr].region0_count = stream.get_bits(4); | ||
409 | si.ch[ch].gr[gr].region1_count = stream.get_bits(3); | ||
410 | si.ch[ch].gr[gr].block_type = 0; | ||
411 | } | ||
412 | si.ch[ch].gr[gr].preflag = stream.get_bits(1); | ||
413 | si.ch[ch].gr[gr].scalefac_scale = stream.get_bits(1); | ||
414 | si.ch[ch].gr[gr].count1table_select = stream.get_bits(1); | ||
415 | } | ||
416 | } | ||
417 | |||
418 | } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF | ||
419 | |||
420 | si.main_data_begin = stream.get_bits(8); | ||
421 | if (channels == 1) | ||
422 | si.private_bits = stream.get_bits(1); | ||
423 | else si.private_bits = stream.get_bits(2); | ||
424 | |||
425 | for (ch=0; ch<channels; ch++) { | ||
426 | |||
427 | si.ch[ch].gr[0].part2_3_length = stream.get_bits(12); | ||
428 | si.ch[ch].gr[0].big_values = stream.get_bits(9); | ||
429 | si.ch[ch].gr[0].global_gain = stream.get_bits(8); | ||
430 | si.ch[ch].gr[0].scalefac_compress = stream.get_bits(9); | ||
431 | si.ch[ch].gr[0].window_switching_flag = stream.get_bits(1); | ||
432 | |||
433 | if ((si.ch[ch].gr[0].window_switching_flag) != 0) { | ||
434 | |||
435 | si.ch[ch].gr[0].block_type = stream.get_bits(2); | ||
436 | si.ch[ch].gr[0].mixed_block_flag = stream.get_bits(1); | ||
437 | si.ch[ch].gr[0].table_select[0] = stream.get_bits(5); | ||
438 | si.ch[ch].gr[0].table_select[1] = stream.get_bits(5); | ||
439 | |||
440 | si.ch[ch].gr[0].subblock_gain[0] = stream.get_bits(3); | ||
441 | si.ch[ch].gr[0].subblock_gain[1] = stream.get_bits(3); | ||
442 | si.ch[ch].gr[0].subblock_gain[2] = stream.get_bits(3); | ||
443 | |||
444 | // Set region_count parameters since they are implicit in this case. | ||
445 | |||
446 | if (si.ch[ch].gr[0].block_type == 0) { | ||
447 | // Side info bad: block_type == 0 in split block | ||
448 | return false; | ||
449 | } else if (si.ch[ch].gr[0].block_type == 2 | ||
450 | && si.ch[ch].gr[0].mixed_block_flag == 0) { | ||
451 | si.ch[ch].gr[0].region0_count = 8; | ||
452 | } else { | ||
453 | si.ch[ch].gr[0].region0_count = 7; | ||
454 | si.ch[ch].gr[0].region1_count = 20 - | ||
455 | si.ch[ch].gr[0].region0_count; | ||
456 | } | ||
457 | |||
458 | } else { | ||
459 | si.ch[ch].gr[0].table_select[0] = stream.get_bits(5); | ||
460 | si.ch[ch].gr[0].table_select[1] = stream.get_bits(5); | ||
461 | si.ch[ch].gr[0].table_select[2] = stream.get_bits(5); | ||
462 | si.ch[ch].gr[0].region0_count = stream.get_bits(4); | ||
463 | si.ch[ch].gr[0].region1_count = stream.get_bits(3); | ||
464 | si.ch[ch].gr[0].block_type = 0; | ||
465 | } | ||
466 | |||
467 | si.ch[ch].gr[0].scalefac_scale = stream.get_bits(1); | ||
468 | si.ch[ch].gr[0].count1table_select = stream.get_bits(1); | ||
469 | } // for(ch=0; ch<channels; ch++) | ||
470 | } // if (header.version() == MPEG1) | ||
471 | return true; | ||
472 | } | ||
473 | |||
474 | /** | ||
475 | * | ||
476 | */ | ||
477 | private void get_scale_factors(int ch, int gr) | ||
478 | { | ||
479 | int sfb, window; | ||
480 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
481 | int scale_comp = gr_info.scalefac_compress; | ||
482 | int length0 = slen[0][scale_comp]; | ||
483 | int length1 = slen[1][scale_comp]; | ||
484 | |||
485 | if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { | ||
486 | if ((gr_info.mixed_block_flag) != 0) { // MIXED | ||
487 | for (sfb = 0; sfb < 8; sfb++) | ||
488 | scalefac[ch].l[sfb] = br.hgetbits( | ||
489 | slen[0][gr_info.scalefac_compress]); | ||
490 | for (sfb = 3; sfb < 6; sfb++) | ||
491 | for (window=0; window<3; window++) | ||
492 | scalefac[ch].s[window][sfb] = br.hgetbits( | ||
493 | slen[0][gr_info.scalefac_compress]); | ||
494 | for (sfb = 6; sfb < 12; sfb++) | ||
495 | for (window=0; window<3; window++) | ||
496 | scalefac[ch].s[window][sfb] = br.hgetbits( | ||
497 | slen[1][gr_info.scalefac_compress]); | ||
498 | for (sfb=12,window=0; window<3; window++) | ||
499 | scalefac[ch].s[window][sfb] = 0; | ||
500 | |||
501 | } else { // SHORT | ||
502 | |||
503 | scalefac[ch].s[0][0] = br.hgetbits(length0); | ||
504 | scalefac[ch].s[1][0] = br.hgetbits(length0); | ||
505 | scalefac[ch].s[2][0] = br.hgetbits(length0); | ||
506 | scalefac[ch].s[0][1] = br.hgetbits(length0); | ||
507 | scalefac[ch].s[1][1] = br.hgetbits(length0); | ||
508 | scalefac[ch].s[2][1] = br.hgetbits(length0); | ||
509 | scalefac[ch].s[0][2] = br.hgetbits(length0); | ||
510 | scalefac[ch].s[1][2] = br.hgetbits(length0); | ||
511 | scalefac[ch].s[2][2] = br.hgetbits(length0); | ||
512 | scalefac[ch].s[0][3] = br.hgetbits(length0); | ||
513 | scalefac[ch].s[1][3] = br.hgetbits(length0); | ||
514 | scalefac[ch].s[2][3] = br.hgetbits(length0); | ||
515 | scalefac[ch].s[0][4] = br.hgetbits(length0); | ||
516 | scalefac[ch].s[1][4] = br.hgetbits(length0); | ||
517 | scalefac[ch].s[2][4] = br.hgetbits(length0); | ||
518 | scalefac[ch].s[0][5] = br.hgetbits(length0); | ||
519 | scalefac[ch].s[1][5] = br.hgetbits(length0); | ||
520 | scalefac[ch].s[2][5] = br.hgetbits(length0); | ||
521 | scalefac[ch].s[0][6] = br.hgetbits(length1); | ||
522 | scalefac[ch].s[1][6] = br.hgetbits(length1); | ||
523 | scalefac[ch].s[2][6] = br.hgetbits(length1); | ||
524 | scalefac[ch].s[0][7] = br.hgetbits(length1); | ||
525 | scalefac[ch].s[1][7] = br.hgetbits(length1); | ||
526 | scalefac[ch].s[2][7] = br.hgetbits(length1); | ||
527 | scalefac[ch].s[0][8] = br.hgetbits(length1); | ||
528 | scalefac[ch].s[1][8] = br.hgetbits(length1); | ||
529 | scalefac[ch].s[2][8] = br.hgetbits(length1); | ||
530 | scalefac[ch].s[0][9] = br.hgetbits(length1); | ||
531 | scalefac[ch].s[1][9] = br.hgetbits(length1); | ||
532 | scalefac[ch].s[2][9] = br.hgetbits(length1); | ||
533 | scalefac[ch].s[0][10] = br.hgetbits(length1); | ||
534 | scalefac[ch].s[1][10] = br.hgetbits(length1); | ||
535 | scalefac[ch].s[2][10] = br.hgetbits(length1); | ||
536 | scalefac[ch].s[0][11] = br.hgetbits(length1); | ||
537 | scalefac[ch].s[1][11] = br.hgetbits(length1); | ||
538 | scalefac[ch].s[2][11] = br.hgetbits(length1); | ||
539 | scalefac[ch].s[0][12] = 0; | ||
540 | scalefac[ch].s[1][12] = 0; | ||
541 | scalefac[ch].s[2][12] = 0; | ||
542 | } // SHORT | ||
543 | |||
544 | } else { // LONG types 0,1,3 | ||
545 | |||
546 | if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) { | ||
547 | scalefac[ch].l[0] = br.hgetbits(length0); | ||
548 | scalefac[ch].l[1] = br.hgetbits(length0); | ||
549 | scalefac[ch].l[2] = br.hgetbits(length0); | ||
550 | scalefac[ch].l[3] = br.hgetbits(length0); | ||
551 | scalefac[ch].l[4] = br.hgetbits(length0); | ||
552 | scalefac[ch].l[5] = br.hgetbits(length0); | ||
553 | } | ||
554 | if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) { | ||
555 | scalefac[ch].l[6] = br.hgetbits(length0); | ||
556 | scalefac[ch].l[7] = br.hgetbits(length0); | ||
557 | scalefac[ch].l[8] = br.hgetbits(length0); | ||
558 | scalefac[ch].l[9] = br.hgetbits(length0); | ||
559 | scalefac[ch].l[10] = br.hgetbits(length0); | ||
560 | } | ||
561 | if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) { | ||
562 | scalefac[ch].l[11] = br.hgetbits(length1); | ||
563 | scalefac[ch].l[12] = br.hgetbits(length1); | ||
564 | scalefac[ch].l[13] = br.hgetbits(length1); | ||
565 | scalefac[ch].l[14] = br.hgetbits(length1); | ||
566 | scalefac[ch].l[15] = br.hgetbits(length1); | ||
567 | } | ||
568 | if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) { | ||
569 | scalefac[ch].l[16] = br.hgetbits(length1); | ||
570 | scalefac[ch].l[17] = br.hgetbits(length1); | ||
571 | scalefac[ch].l[18] = br.hgetbits(length1); | ||
572 | scalefac[ch].l[19] = br.hgetbits(length1); | ||
573 | scalefac[ch].l[20] = br.hgetbits(length1); | ||
574 | } | ||
575 | |||
576 | scalefac[ch].l[21] = 0; | ||
577 | scalefac[ch].l[22] = 0; | ||
578 | } | ||
579 | } | ||
580 | |||
581 | /** | ||
582 | * | ||
583 | */ | ||
584 | // MDM: new_slen is fully initialized before use, no need | ||
585 | // to reallocate array. | ||
586 | private final int[] new_slen = new int[4]; | ||
587 | |||
588 | private void get_LSF_scale_data(int ch, int gr) | ||
589 | { | ||
590 | |||
591 | int scalefac_comp, int_scalefac_comp; | ||
592 | int mode_ext = header.mode_extension(); | ||
593 | int m; | ||
594 | int blocktypenumber; | ||
595 | int blocknumber = 0; | ||
596 | |||
597 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
598 | |||
599 | scalefac_comp = gr_info.scalefac_compress; | ||
600 | |||
601 | if (gr_info.block_type == 2) { | ||
602 | if (gr_info.mixed_block_flag == 0) | ||
603 | blocktypenumber = 1; | ||
604 | else if (gr_info.mixed_block_flag == 1) | ||
605 | blocktypenumber = 2; | ||
606 | else | ||
607 | blocktypenumber = 0; | ||
608 | } else { | ||
609 | blocktypenumber = 0; | ||
610 | } | ||
611 | |||
612 | if(!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) { | ||
613 | |||
614 | if(scalefac_comp < 400) { | ||
615 | |||
616 | new_slen[0] = (scalefac_comp >>> 4) / 5 ; | ||
617 | new_slen[1] = (scalefac_comp >>> 4) % 5 ; | ||
618 | new_slen[2] = (scalefac_comp & 0xF) >>> 2 ; | ||
619 | new_slen[3] = (scalefac_comp & 3); | ||
620 | si.ch[ch].gr[gr].preflag = 0; | ||
621 | blocknumber = 0; | ||
622 | |||
623 | } else if (scalefac_comp < 500) { | ||
624 | |||
625 | new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5 ; | ||
626 | new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5 ; | ||
627 | new_slen[2] = (scalefac_comp - 400 ) & 3 ; | ||
628 | new_slen[3] = 0; | ||
629 | si.ch[ch].gr[gr].preflag = 0; | ||
630 | blocknumber = 1; | ||
631 | |||
632 | } else if (scalefac_comp < 512) { | ||
633 | |||
634 | new_slen[0] = (scalefac_comp - 500 ) / 3 ; | ||
635 | new_slen[1] = (scalefac_comp - 500) % 3 ; | ||
636 | new_slen[2] = 0; | ||
637 | new_slen[3] = 0; | ||
638 | si.ch[ch].gr[gr].preflag = 1; | ||
639 | blocknumber = 2; | ||
640 | } | ||
641 | } | ||
642 | |||
643 | if((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) | ||
644 | { | ||
645 | int_scalefac_comp = scalefac_comp >>> 1; | ||
646 | |||
647 | if (int_scalefac_comp < 180) | ||
648 | { | ||
649 | new_slen[0] = int_scalefac_comp / 36 ; | ||
650 | new_slen[1] = (int_scalefac_comp % 36 ) / 6 ; | ||
651 | new_slen[2] = (int_scalefac_comp % 36) % 6; | ||
652 | new_slen[3] = 0; | ||
653 | si.ch[ch].gr[gr].preflag = 0; | ||
654 | blocknumber = 3; | ||
655 | } else if (int_scalefac_comp < 244) { | ||
656 | new_slen[0] = ((int_scalefac_comp - 180 ) & 0x3F) >>> 4 ; | ||
657 | new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2 ; | ||
658 | new_slen[2] = (int_scalefac_comp - 180 ) & 3 ; | ||
659 | new_slen[3] = 0; | ||
660 | si.ch[ch].gr[gr].preflag = 0; | ||
661 | blocknumber = 4; | ||
662 | } else if (int_scalefac_comp < 255) { | ||
663 | new_slen[0] = (int_scalefac_comp - 244 ) / 3 ; | ||
664 | new_slen[1] = (int_scalefac_comp - 244 ) % 3 ; | ||
665 | new_slen[2] = 0 ; | ||
666 | new_slen[3] = 0; | ||
667 | si.ch[ch].gr[gr].preflag = 0; | ||
668 | blocknumber = 5; | ||
669 | } | ||
670 | } | ||
671 | |||
672 | for (int x=0; x<45; x++) // why 45, not 54? | ||
673 | scalefac_buffer[x] = 0; | ||
674 | |||
675 | m = 0; | ||
676 | for (int i=0; i<4;i++) { | ||
677 | for (int j = 0; j < nr_of_sfb_block[blocknumber][blocktypenumber][i]; | ||
678 | j++) | ||
679 | { | ||
680 | scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : | ||
681 | br.hgetbits(new_slen[i]); | ||
682 | m++; | ||
683 | |||
684 | } // for (unint32 j ... | ||
685 | } // for (uint32 i ... | ||
686 | } | ||
687 | |||
688 | /** | ||
689 | * | ||
690 | */ | ||
691 | private void get_LSF_scale_factors(int ch, int gr) | ||
692 | { | ||
693 | int m = 0; | ||
694 | int sfb, window; | ||
695 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
696 | |||
697 | get_LSF_scale_data(ch, gr); | ||
698 | |||
699 | if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { | ||
700 | if (gr_info.mixed_block_flag != 0) { // MIXED | ||
701 | for (sfb = 0; sfb < 8; sfb++) | ||
702 | { | ||
703 | scalefac[ch].l[sfb] = scalefac_buffer[m]; | ||
704 | m++; | ||
705 | } | ||
706 | for (sfb = 3; sfb < 12; sfb++) { | ||
707 | for (window=0; window<3; window++) | ||
708 | { | ||
709 | scalefac[ch].s[window][sfb] = scalefac_buffer[m]; | ||
710 | m++; | ||
711 | } | ||
712 | } | ||
713 | for (window=0; window<3; window++) | ||
714 | scalefac[ch].s[window][12] = 0; | ||
715 | |||
716 | } else { // SHORT | ||
717 | |||
718 | for (sfb = 0; sfb < 12; sfb++) { | ||
719 | for (window=0; window<3; window++) | ||
720 | { | ||
721 | scalefac[ch].s[window][sfb] = scalefac_buffer[m]; | ||
722 | m++; | ||
723 | } | ||
724 | } | ||
725 | |||
726 | for (window=0; window<3; window++) | ||
727 | scalefac[ch].s[window][12] = 0; | ||
728 | } | ||
729 | } else { // LONG types 0,1,3 | ||
730 | |||
731 | for (sfb = 0; sfb < 21; sfb++) { | ||
732 | scalefac[ch].l[sfb] = scalefac_buffer[m]; | ||
733 | m++; | ||
734 | } | ||
735 | scalefac[ch].l[21] = 0; // Jeff | ||
736 | scalefac[ch].l[22] = 0; | ||
737 | } | ||
738 | } | ||
739 | |||
740 | /** | ||
741 | * | ||
742 | */ | ||
743 | int[] x = {0}; | ||
744 | int[] y = {0}; | ||
745 | int[] v = {0}; | ||
746 | int[] w = {0}; | ||
747 | private void huffman_decode(int ch, int gr) | ||
748 | { | ||
749 | x[0] = 0; | ||
750 | y[0] = 0; | ||
751 | v[0] = 0; | ||
752 | w[0] = 0; | ||
753 | |||
754 | int part2_3_end = part2_start + si.ch[ch].gr[gr].part2_3_length; | ||
755 | int num_bits; | ||
756 | int region1Start; | ||
757 | int region2Start; | ||
758 | int index; | ||
759 | |||
760 | int buf, buf1; | ||
761 | |||
762 | huffcodetab h; | ||
763 | |||
764 | // Find region boundary for short block case | ||
765 | |||
766 | if ( ((si.ch[ch].gr[gr].window_switching_flag) != 0) && | ||
767 | (si.ch[ch].gr[gr].block_type == 2) ) { | ||
768 | |||
769 | // Region2. | ||
770 | //MS: Extrahandling for 8KHZ | ||
771 | region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case 8KHZ = 72 | ||
772 | region2Start = 576; // No Region2 for short block case | ||
773 | |||
774 | } else { // Find region boundary for long block case | ||
775 | |||
776 | buf = si.ch[ch].gr[gr].region0_count + 1; | ||
777 | buf1 = buf + si.ch[ch].gr[gr].region1_count + 1; | ||
778 | |||
779 | if(buf1 > sfBandIndex[sfreq].l.length - 1) buf1 = sfBandIndex[sfreq].l.length - 1; | ||
780 | |||
781 | region1Start = sfBandIndex[sfreq].l[buf]; | ||
782 | region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */ | ||
783 | } | ||
784 | |||
785 | index = 0; | ||
786 | // Read bigvalues area | ||
787 | for (int i=0; i<(si.ch[ch].gr[gr].big_values<<1); i+=2) { | ||
788 | if (i<region1Start) h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]]; | ||
789 | else if (i<region2Start) h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]]; | ||
790 | else h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]]; | ||
791 | |||
792 | huffcodetab.huffman_decoder(h, x, y, v, w, br); | ||
793 | //if (index >= is_1d.length) System.out.println("i0="+i+"/"+(si.ch[ch].gr[gr].big_values<<1)+" Index="+index+" is_1d="+is_1d.length); | ||
794 | |||
795 | is_1d[index++] = x[0]; | ||
796 | is_1d[index++] = y[0]; | ||
797 | |||
798 | CheckSumHuff = CheckSumHuff + x[0] + y[0]; | ||
799 | // System.out.println("x = "+x[0]+" y = "+y[0]); | ||
800 | } | ||
801 | |||
802 | // Read count1 area | ||
803 | h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select+32]; | ||
804 | num_bits = br.hsstell(); | ||
805 | |||
806 | while ((num_bits < part2_3_end) && (index < 576)) { | ||
807 | |||
808 | huffcodetab.huffman_decoder(h, x, y, v, w, br); | ||
809 | |||
810 | is_1d[index++] = v[0]; | ||
811 | is_1d[index++] = w[0]; | ||
812 | is_1d[index++] = x[0]; | ||
813 | is_1d[index++] = y[0]; | ||
814 | CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0]; | ||
815 | // System.out.println("v = "+v[0]+" w = "+w[0]); | ||
816 | // System.out.println("x = "+x[0]+" y = "+y[0]); | ||
817 | num_bits = br.hsstell(); | ||
818 | } | ||
819 | |||
820 | if (num_bits > part2_3_end) { | ||
821 | br.rewindNbits(num_bits - part2_3_end); | ||
822 | index-=4; | ||
823 | } | ||
824 | |||
825 | num_bits = br.hsstell(); | ||
826 | |||
827 | // Dismiss stuffing bits | ||
828 | if (num_bits < part2_3_end) | ||
829 | br.hgetbits(part2_3_end - num_bits); | ||
830 | |||
831 | // Zero out rest | ||
832 | |||
833 | if (index < 576) | ||
834 | nonzero[ch] = index; | ||
835 | else | ||
836 | nonzero[ch] = 576; | ||
837 | |||
838 | if (index < 0) index = 0; | ||
839 | |||
840 | // may not be necessary | ||
841 | for (; index<576; index++) | ||
842 | is_1d[index] = 0; | ||
843 | } | ||
844 | |||
845 | /** | ||
846 | * | ||
847 | */ | ||
848 | private void i_stereo_k_values(int is_pos, int io_type, int i) | ||
849 | { | ||
850 | if (is_pos == 0) { | ||
851 | k[0][i] = 1.0f; | ||
852 | k[1][i] = 1.0f; | ||
853 | } else if ((is_pos & 1) != 0) { | ||
854 | k[0][i] = io[io_type][(is_pos + 1) >>> 1]; | ||
855 | k[1][i] = 1.0f; | ||
856 | } else { | ||
857 | k[0][i] = 1.0f; | ||
858 | k[1][i] = io[io_type][is_pos >>> 1]; | ||
859 | } | ||
860 | } | ||
861 | |||
862 | /** | ||
863 | * | ||
864 | */ | ||
865 | private void dequantize_sample(float xr[][], int ch, int gr) | ||
866 | { | ||
867 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
868 | int cb=0; | ||
869 | int next_cb_boundary; | ||
870 | int cb_begin = 0; | ||
871 | int cb_width = 0; | ||
872 | int index=0, t_index, j; | ||
873 | float g_gain; | ||
874 | float[][] xr_1d = xr; | ||
875 | |||
876 | // choose correct scalefactor band per block type, initalize boundary | ||
877 | |||
878 | if ((gr_info.window_switching_flag !=0 ) && (gr_info.block_type == 2) ) { | ||
879 | if (gr_info.mixed_block_flag != 0) | ||
880 | next_cb_boundary=sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3 | ||
881 | else { | ||
882 | cb_width = sfBandIndex[sfreq].s[1]; | ||
883 | next_cb_boundary = (cb_width << 2) - cb_width; | ||
884 | cb_begin = 0; | ||
885 | } | ||
886 | } else { | ||
887 | next_cb_boundary=sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3 | ||
888 | } | ||
889 | |||
890 | // Compute overall (global) scaling. | ||
891 | |||
892 | g_gain = (float) Math.pow(2.0 , (0.25 * (gr_info.global_gain - 210.0))); | ||
893 | |||
894 | for (j=0; j<nonzero[ch]; j++) | ||
895 | { | ||
896 | // Modif E.B 02/22/99 | ||
897 | int reste = j % SSLIMIT; | ||
898 | int quotien = (int) ((j-reste)/SSLIMIT); | ||
899 | if (is_1d[j] == 0) xr_1d[quotien][reste] = 0.0f; | ||
900 | else | ||
901 | { | ||
902 | int abv = is_1d[j]; | ||
903 | // Pow Array fix (11/17/04) | ||
904 | if (abv < t_43.length) | ||
905 | { | ||
906 | if (is_1d[j] > 0) xr_1d[quotien][reste] = g_gain * t_43[abv]; | ||
907 | else | ||
908 | { | ||
909 | if (-abv < t_43.length) xr_1d[quotien][reste] = -g_gain * t_43[-abv]; | ||
910 | else xr_1d[quotien][reste] = -g_gain * (float)Math.pow(-abv, d43); | ||
911 | } | ||
912 | } | ||
913 | else | ||
914 | { | ||
915 | if (is_1d[j] > 0) xr_1d[quotien][reste] = g_gain * (float)Math.pow(abv, d43); | ||
916 | else xr_1d[quotien][reste] = -g_gain * (float)Math.pow(-abv, d43); | ||
917 | } | ||
918 | } | ||
919 | } | ||
920 | |||
921 | // apply formula per block type | ||
922 | for (j=0; j<nonzero[ch]; j++) | ||
923 | { | ||
924 | // Modif E.B 02/22/99 | ||
925 | int reste = j % SSLIMIT; | ||
926 | int quotien = (int) ((j-reste)/SSLIMIT); | ||
927 | |||
928 | if (index == next_cb_boundary) { /* Adjust critical band boundary */ | ||
929 | if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { | ||
930 | if (gr_info.mixed_block_flag != 0) { | ||
931 | |||
932 | if (index == sfBandIndex[sfreq].l[8]) { | ||
933 | next_cb_boundary = sfBandIndex[sfreq].s[4]; | ||
934 | next_cb_boundary = (next_cb_boundary << 2) - | ||
935 | next_cb_boundary; | ||
936 | cb = 3; | ||
937 | cb_width = sfBandIndex[sfreq].s[4] - | ||
938 | sfBandIndex[sfreq].s[3]; | ||
939 | |||
940 | cb_begin = sfBandIndex[sfreq].s[3]; | ||
941 | cb_begin = (cb_begin << 2) - cb_begin; | ||
942 | |||
943 | } else if (index < sfBandIndex[sfreq].l[8]) { | ||
944 | |||
945 | next_cb_boundary = sfBandIndex[sfreq].l[(++cb)+1]; | ||
946 | |||
947 | } else { | ||
948 | |||
949 | next_cb_boundary = sfBandIndex[sfreq].s[(++cb)+1]; | ||
950 | next_cb_boundary = (next_cb_boundary << 2) - | ||
951 | next_cb_boundary; | ||
952 | |||
953 | cb_begin = sfBandIndex[sfreq].s[cb]; | ||
954 | cb_width = sfBandIndex[sfreq].s[cb+1] - | ||
955 | cb_begin; | ||
956 | cb_begin = (cb_begin << 2) - cb_begin; | ||
957 | } | ||
958 | |||
959 | } else { | ||
960 | |||
961 | next_cb_boundary = sfBandIndex[sfreq].s[(++cb)+1]; | ||
962 | next_cb_boundary = (next_cb_boundary << 2) - | ||
963 | next_cb_boundary; | ||
964 | |||
965 | cb_begin = sfBandIndex[sfreq].s[cb]; | ||
966 | cb_width = sfBandIndex[sfreq].s[cb+1] - | ||
967 | cb_begin; | ||
968 | cb_begin = (cb_begin << 2) - cb_begin; | ||
969 | } | ||
970 | |||
971 | } else { // long blocks | ||
972 | |||
973 | next_cb_boundary = sfBandIndex[sfreq].l[(++cb)+1]; | ||
974 | |||
975 | } | ||
976 | } | ||
977 | |||
978 | // Do long/short dependent scaling operations | ||
979 | |||
980 | if ((gr_info.window_switching_flag !=0)&& | ||
981 | (((gr_info.block_type == 2) && (gr_info.mixed_block_flag == 0)) || | ||
982 | ((gr_info.block_type == 2) && (gr_info.mixed_block_flag!=0) && (j >= 36)) )) | ||
983 | { | ||
984 | |||
985 | t_index = (index - cb_begin) / cb_width; | ||
986 | /* xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) | ||
987 | -(0.5 * (1.0 + gr_info.scalefac_scale) | ||
988 | * scalefac[ch].s[t_index][cb]))); */ | ||
989 | int idx = scalefac[ch].s[t_index][cb] | ||
990 | << gr_info.scalefac_scale; | ||
991 | idx += (gr_info.subblock_gain[t_index] << 2); | ||
992 | |||
993 | xr_1d[quotien][reste] *= two_to_negative_half_pow[idx]; | ||
994 | |||
995 | } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks | ||
996 | /* xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale) | ||
997 | * (scalefac[ch].l[cb] | ||
998 | + gr_info.preflag * pretab[cb])); */ | ||
999 | int idx = scalefac[ch].l[cb]; | ||
1000 | |||
1001 | if (gr_info.preflag != 0) | ||
1002 | idx += pretab[cb]; | ||
1003 | |||
1004 | idx = idx << gr_info.scalefac_scale; | ||
1005 | xr_1d[quotien][reste] *= two_to_negative_half_pow[idx]; | ||
1006 | } | ||
1007 | index++; | ||
1008 | } | ||
1009 | |||
1010 | for (j=nonzero[ch]; j<576; j++) | ||
1011 | { | ||
1012 | // Modif E.B 02/22/99 | ||
1013 | int reste = j % SSLIMIT; | ||
1014 | int quotien = (int) ((j-reste)/SSLIMIT); | ||
1015 | if(reste < 0) reste = 0; | ||
1016 | if(quotien < 0) quotien = 0; | ||
1017 | xr_1d[quotien][reste] = 0.0f; | ||
1018 | } | ||
1019 | |||
1020 | return; | ||
1021 | } | ||
1022 | |||
1023 | /** | ||
1024 | * | ||
1025 | */ | ||
1026 | private void reorder(float xr[][], int ch, int gr) | ||
1027 | { | ||
1028 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
1029 | int freq, freq3; | ||
1030 | int index; | ||
1031 | int sfb, sfb_start, sfb_lines; | ||
1032 | int src_line, des_line; | ||
1033 | float[][] xr_1d = xr; | ||
1034 | |||
1035 | if ((gr_info.window_switching_flag !=0) && (gr_info.block_type == 2)) { | ||
1036 | |||
1037 | for(index=0; index<576; index++) | ||
1038 | out_1d[index] = 0.0f; | ||
1039 | |||
1040 | if (gr_info.mixed_block_flag !=0 ) { | ||
1041 | // NO REORDER FOR LOW 2 SUBBANDS | ||
1042 | for (index = 0; index < 36; index++) | ||
1043 | { | ||
1044 | // Modif E.B 02/22/99 | ||
1045 | int reste = index % SSLIMIT; | ||
1046 | int quotien = (int) ((index-reste)/SSLIMIT); | ||
1047 | out_1d[index] = xr_1d[quotien][reste]; | ||
1048 | } | ||
1049 | // REORDERING FOR REST SWITCHED SHORT | ||
1050 | /*for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3], | ||
1051 | sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; | ||
1052 | sfb < 13; sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], | ||
1053 | sfb_lines = sfBandIndex[sfreq].s[sfb+1] - sfb_start ) | ||
1054 | {*/ | ||
1055 | for( sfb=3; sfb < 13; sfb++) | ||
1056 | { | ||
1057 | //System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length); | ||
1058 | sfb_start = sfBandIndex[sfreq].s[sfb]; | ||
1059 | sfb_lines = sfBandIndex[sfreq].s[sfb+1] - sfb_start; | ||
1060 | |||
1061 | int sfb_start3 = (sfb_start << 2) - sfb_start; | ||
1062 | |||
1063 | for(freq=0, freq3=0; freq<sfb_lines; | ||
1064 | freq++, freq3+=3) { | ||
1065 | |||
1066 | src_line = sfb_start3 + freq; | ||
1067 | des_line = sfb_start3 + freq3; | ||
1068 | // Modif E.B 02/22/99 | ||
1069 | int reste = src_line % SSLIMIT; | ||
1070 | int quotien = (int) ((src_line-reste)/SSLIMIT); | ||
1071 | |||
1072 | out_1d[des_line] = xr_1d[quotien][reste]; | ||
1073 | src_line += sfb_lines; | ||
1074 | des_line++; | ||
1075 | |||
1076 | reste = src_line % SSLIMIT; | ||
1077 | quotien = (int) ((src_line-reste)/SSLIMIT); | ||
1078 | |||
1079 | out_1d[des_line] = xr_1d[quotien][reste]; | ||
1080 | src_line += sfb_lines; | ||
1081 | des_line++; | ||
1082 | |||
1083 | reste = src_line % SSLIMIT; | ||
1084 | quotien = (int) ((src_line-reste)/SSLIMIT); | ||
1085 | |||
1086 | out_1d[des_line] = xr_1d[quotien][reste]; | ||
1087 | } | ||
1088 | } | ||
1089 | |||
1090 | } else { // pure short | ||
1091 | for(index=0;index<576;index++) | ||
1092 | { | ||
1093 | int j = reorder_table[sfreq][index]; | ||
1094 | int reste = j % SSLIMIT; | ||
1095 | int quotien = (int) ((j-reste)/SSLIMIT); | ||
1096 | out_1d[index] = xr_1d[quotien][reste]; | ||
1097 | } | ||
1098 | } | ||
1099 | } | ||
1100 | else { // long blocks | ||
1101 | for(index=0; index<576; index++) | ||
1102 | { | ||
1103 | // Modif E.B 02/22/99 | ||
1104 | int reste = index % SSLIMIT; | ||
1105 | int quotien = (int) ((index-reste)/SSLIMIT); | ||
1106 | out_1d[index] = xr_1d[quotien][reste]; | ||
1107 | } | ||
1108 | } | ||
1109 | } | ||
1110 | |||
1111 | /** | ||
1112 | * | ||
1113 | */ | ||
1114 | |||
1115 | int[] is_pos = new int[576]; | ||
1116 | float[] is_ratio = new float[576]; | ||
1117 | |||
1118 | private void stereo(int gr) | ||
1119 | { | ||
1120 | int sb, ss; | ||
1121 | |||
1122 | if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][] | ||
1123 | |||
1124 | for(sb=0;sb<SBLIMIT;sb++) | ||
1125 | for(ss=0;ss<SSLIMIT;ss+=3) { | ||
1126 | lr[0][sb][ss] = ro[0][sb][ss]; | ||
1127 | lr[0][sb][ss+1] = ro[0][sb][ss+1]; | ||
1128 | lr[0][sb][ss+2] = ro[0][sb][ss+2]; | ||
1129 | } | ||
1130 | |||
1131 | } else { | ||
1132 | |||
1133 | gr_info_s gr_info = (si.ch[0].gr[gr]); | ||
1134 | int mode_ext = header.mode_extension(); | ||
1135 | int sfb; | ||
1136 | int i; | ||
1137 | int lines, temp, temp2; | ||
1138 | |||
1139 | boolean ms_stereo = ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2)!=0)); | ||
1140 | boolean i_stereo = ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1)!=0)); | ||
1141 | boolean lsf = ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF )); // SZD | ||
1142 | |||
1143 | int io_type = (gr_info.scalefac_compress & 1); | ||
1144 | |||
1145 | // initialization | ||
1146 | |||
1147 | for (i=0; i<576; i++) | ||
1148 | { | ||
1149 | is_pos[i] = 7; | ||
1150 | |||
1151 | is_ratio[i] = 0.0f; | ||
1152 | } | ||
1153 | |||
1154 | if (i_stereo) { | ||
1155 | if ((gr_info.window_switching_flag !=0 )&& (gr_info.block_type == 2)) { | ||
1156 | if (gr_info.mixed_block_flag != 0) { | ||
1157 | |||
1158 | int max_sfb = 0; | ||
1159 | |||
1160 | for (int j=0; j<3; j++) { | ||
1161 | int sfbcnt; | ||
1162 | sfbcnt = 2; | ||
1163 | for( sfb=12; sfb >=3; sfb-- ) { | ||
1164 | i = sfBandIndex[sfreq].s[sfb]; | ||
1165 | lines = sfBandIndex[sfreq].s[sfb+1] - i; | ||
1166 | i = (i << 2) - i + (j+1) * lines - 1; | ||
1167 | |||
1168 | while (lines > 0) { | ||
1169 | if (ro[1][i/18][i%18] != 0.0f) { | ||
1170 | // MDM: in java, array access is very slow. | ||
1171 | // Is quicker to compute div and mod values. | ||
1172 | //if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) { | ||
1173 | sfbcnt = sfb; | ||
1174 | sfb = -10; | ||
1175 | lines = -10; | ||
1176 | } | ||
1177 | |||
1178 | lines--; | ||
1179 | i--; | ||
1180 | |||
1181 | } // while (lines > 0) | ||
1182 | |||
1183 | } // for (sfb=12 ... | ||
1184 | sfb = sfbcnt + 1; | ||
1185 | |||
1186 | if (sfb > max_sfb) | ||
1187 | max_sfb = sfb; | ||
1188 | |||
1189 | while(sfb < 12) { | ||
1190 | temp = sfBandIndex[sfreq].s[sfb]; | ||
1191 | sb = sfBandIndex[sfreq].s[sfb+1] - temp; | ||
1192 | i = (temp << 2) - temp + j * sb; | ||
1193 | |||
1194 | for ( ; sb > 0; sb--) { | ||
1195 | is_pos[i] = scalefac[1].s[j][sfb]; | ||
1196 | if (is_pos[i] != 7) | ||
1197 | if (lsf) | ||
1198 | i_stereo_k_values(is_pos[i], io_type, i); | ||
1199 | else | ||
1200 | is_ratio[i] = TAN12[is_pos[i]]; | ||
1201 | |||
1202 | i++; | ||
1203 | } // for (; sb>0... | ||
1204 | sfb++; | ||
1205 | } // while (sfb < 12) | ||
1206 | sfb = sfBandIndex[sfreq].s[10]; | ||
1207 | sb = sfBandIndex[sfreq].s[11] - sfb; | ||
1208 | sfb = (sfb << 2) - sfb + j * sb; | ||
1209 | temp = sfBandIndex[sfreq].s[11]; | ||
1210 | sb = sfBandIndex[sfreq].s[12] - temp; | ||
1211 | i = (temp << 2) - temp + j * sb; | ||
1212 | |||
1213 | for (; sb > 0; sb--) { | ||
1214 | is_pos[i] = is_pos[sfb]; | ||
1215 | |||
1216 | if (lsf) { | ||
1217 | k[0][i] = k[0][sfb]; | ||
1218 | k[1][i] = k[1][sfb]; | ||
1219 | } else { | ||
1220 | is_ratio[i] = is_ratio[sfb]; | ||
1221 | } | ||
1222 | i++; | ||
1223 | } // for (; sb > 0 ... | ||
1224 | } | ||
1225 | if (max_sfb <= 3) { | ||
1226 | i = 2; | ||
1227 | ss = 17; | ||
1228 | sb = -1; | ||
1229 | while (i >= 0) { | ||
1230 | if (ro[1][i][ss] != 0.0f) { | ||
1231 | sb = (i<<4) + (i<<1) + ss; | ||
1232 | i = -1; | ||
1233 | } else { | ||
1234 | ss--; | ||
1235 | if (ss < 0) { | ||
1236 | i--; | ||
1237 | ss = 17; | ||
1238 | } | ||
1239 | } // if (ro ... | ||
1240 | } // while (i>=0) | ||
1241 | i = 0; | ||
1242 | while (sfBandIndex[sfreq].l[i] <= sb) | ||
1243 | i++; | ||
1244 | sfb = i; | ||
1245 | i = sfBandIndex[sfreq].l[i]; | ||
1246 | for (; sfb<8; sfb++) { | ||
1247 | sb = sfBandIndex[sfreq].l[sfb+1]-sfBandIndex[sfreq].l[sfb]; | ||
1248 | for (; sb>0; sb--) { | ||
1249 | is_pos[i] = scalefac[1].l[sfb]; | ||
1250 | if (is_pos[i] != 7) | ||
1251 | if (lsf) | ||
1252 | i_stereo_k_values(is_pos[i], io_type, i); | ||
1253 | else | ||
1254 | is_ratio[i] = TAN12[is_pos[i]]; | ||
1255 | i++; | ||
1256 | } // for (; sb>0 ... | ||
1257 | } // for (; sfb<8 ... | ||
1258 | } // for (j=0 ... | ||
1259 | } else { // if (gr_info.mixed_block_flag) | ||
1260 | for (int j=0; j<3; j++) { | ||
1261 | int sfbcnt; | ||
1262 | sfbcnt = -1; | ||
1263 | for( sfb=12; sfb >=0; sfb-- ) | ||
1264 | { | ||
1265 | temp = sfBandIndex[sfreq].s[sfb]; | ||
1266 | lines = sfBandIndex[sfreq].s[sfb+1] - temp; | ||
1267 | i = (temp << 2) - temp + (j+1) * lines - 1; | ||
1268 | |||
1269 | while (lines > 0) { | ||
1270 | if (ro[1][i/18][i%18] != 0.0f) { | ||
1271 | // MDM: in java, array access is very slow. | ||
1272 | // Is quicker to compute div and mod values. | ||
1273 | //if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) { | ||
1274 | sfbcnt = sfb; | ||
1275 | sfb = -10; | ||
1276 | lines = -10; | ||
1277 | } | ||
1278 | lines--; | ||
1279 | i--; | ||
1280 | } // while (lines > 0) */ | ||
1281 | |||
1282 | } // for (sfb=12 ... | ||
1283 | sfb = sfbcnt + 1; | ||
1284 | while(sfb<12) { | ||
1285 | temp = sfBandIndex[sfreq].s[sfb]; | ||
1286 | sb = sfBandIndex[sfreq].s[sfb+1] - temp; | ||
1287 | i = (temp << 2) - temp + j * sb; | ||
1288 | for ( ; sb > 0; sb--) { | ||
1289 | is_pos[i] = scalefac[1].s[j][sfb]; | ||
1290 | if (is_pos[i] != 7) | ||
1291 | if (lsf) | ||
1292 | i_stereo_k_values(is_pos[i], io_type, i); | ||
1293 | else | ||
1294 | is_ratio[i] = TAN12[is_pos[i]]; | ||
1295 | i++; | ||
1296 | } // for (; sb>0 ... | ||
1297 | sfb++; | ||
1298 | } // while (sfb<12) | ||
1299 | |||
1300 | temp = sfBandIndex[sfreq].s[10]; | ||
1301 | temp2= sfBandIndex[sfreq].s[11]; | ||
1302 | sb = temp2 - temp; | ||
1303 | sfb = (temp << 2) - temp + j * sb; | ||
1304 | sb = sfBandIndex[sfreq].s[12] - temp2; | ||
1305 | i = (temp2 << 2) - temp2 + j * sb; | ||
1306 | |||
1307 | for (; sb>0; sb--) { | ||
1308 | is_pos[i] = is_pos[sfb]; | ||
1309 | |||
1310 | if (lsf) { | ||
1311 | k[0][i] = k[0][sfb]; | ||
1312 | k[1][i] = k[1][sfb]; | ||
1313 | } else { | ||
1314 | is_ratio[i] = is_ratio[sfb]; | ||
1315 | } | ||
1316 | i++; | ||
1317 | } // for (; sb>0 ... | ||
1318 | } // for (sfb=12 | ||
1319 | } // for (j=0 ... | ||
1320 | } else { // if (gr_info.window_switching_flag ... | ||
1321 | i = 31; | ||
1322 | ss = 17; | ||
1323 | sb = 0; | ||
1324 | while (i >= 0) { | ||
1325 | if (ro[1][i][ss] != 0.0f) { | ||
1326 | sb = (i<<4) + (i<<1) + ss; | ||
1327 | i = -1; | ||
1328 | } else { | ||
1329 | ss--; | ||
1330 | if (ss < 0) { | ||
1331 | i--; | ||
1332 | ss = 17; | ||
1333 | } | ||
1334 | } | ||
1335 | } | ||
1336 | i = 0; | ||
1337 | while (sfBandIndex[sfreq].l[i] <= sb) | ||
1338 | i++; | ||
1339 | |||
1340 | sfb = i; | ||
1341 | i = sfBandIndex[sfreq].l[i]; | ||
1342 | for (; sfb<21; sfb++) { | ||
1343 | sb = sfBandIndex[sfreq].l[sfb+1] - sfBandIndex[sfreq].l[sfb]; | ||
1344 | for (; sb > 0; sb--) { | ||
1345 | is_pos[i] = scalefac[1].l[sfb]; | ||
1346 | if (is_pos[i] != 7) | ||
1347 | if (lsf) | ||
1348 | i_stereo_k_values(is_pos[i], io_type, i); | ||
1349 | else | ||
1350 | is_ratio[i] = TAN12[is_pos[i]]; | ||
1351 | i++; | ||
1352 | } | ||
1353 | } | ||
1354 | sfb = sfBandIndex[sfreq].l[20]; | ||
1355 | for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i<576); sb--) | ||
1356 | { | ||
1357 | is_pos[i] = is_pos[sfb]; // error here : i >=576 | ||
1358 | |||
1359 | if (lsf) { | ||
1360 | k[0][i] = k[0][sfb]; | ||
1361 | k[1][i] = k[1][sfb]; | ||
1362 | } else { | ||
1363 | is_ratio[i] = is_ratio[sfb]; | ||
1364 | } | ||
1365 | i++; | ||
1366 | } // if (gr_info.mixed_block_flag) | ||
1367 | } // if (gr_info.window_switching_flag ... | ||
1368 | } // if (i_stereo) | ||
1369 | |||
1370 | i = 0; | ||
1371 | for(sb=0;sb<SBLIMIT;sb++) | ||
1372 | for(ss=0;ss<SSLIMIT;ss++) { | ||
1373 | if (is_pos[i] == 7) { | ||
1374 | if (ms_stereo) { | ||
1375 | lr[0][sb][ss] = (ro[0][sb][ss]+ro[1][sb][ss]) * 0.707106781f; | ||
1376 | lr[1][sb][ss] = (ro[0][sb][ss]-ro[1][sb][ss]) * 0.707106781f; | ||
1377 | } else { | ||
1378 | lr[0][sb][ss] = ro[0][sb][ss]; | ||
1379 | lr[1][sb][ss] = ro[1][sb][ss]; | ||
1380 | } | ||
1381 | } | ||
1382 | else if (i_stereo) { | ||
1383 | |||
1384 | if (lsf) { | ||
1385 | lr[0][sb][ss] = ro[0][sb][ss] * k[0][i]; | ||
1386 | lr[1][sb][ss] = ro[0][sb][ss] * k[1][i]; | ||
1387 | } else { | ||
1388 | lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]); | ||
1389 | lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i]; | ||
1390 | } | ||
1391 | } | ||
1392 | /* else { | ||
1393 | System.out.println("Error in stereo processing\n"); | ||
1394 | } */ | ||
1395 | i++; | ||
1396 | } | ||
1397 | |||
1398 | } // channels == 2 | ||
1399 | |||
1400 | } | ||
1401 | |||
1402 | /** | ||
1403 | * | ||
1404 | */ | ||
1405 | private void antialias(int ch, int gr) | ||
1406 | { | ||
1407 | int sb18, ss, sb18lim; | ||
1408 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
1409 | // 31 alias-reduction operations between each pair of sub-bands | ||
1410 | // with 8 butterflies between each pair | ||
1411 | |||
1412 | if ((gr_info.window_switching_flag !=0) && (gr_info.block_type == 2) && | ||
1413 | !(gr_info.mixed_block_flag != 0) ) | ||
1414 | return; | ||
1415 | |||
1416 | if ((gr_info.window_switching_flag !=0) && (gr_info.mixed_block_flag != 0)&& | ||
1417 | (gr_info.block_type == 2)) { | ||
1418 | sb18lim = 18; | ||
1419 | } else { | ||
1420 | sb18lim = 558; | ||
1421 | } | ||
1422 | |||
1423 | for (sb18=0; sb18 < sb18lim; sb18+=18) { | ||
1424 | for (ss=0;ss<8;ss++) { | ||
1425 | int src_idx1 = sb18 + 17 - ss; | ||
1426 | int src_idx2 = sb18 + 18 + ss; | ||
1427 | float bu = out_1d[src_idx1]; | ||
1428 | float bd = out_1d[src_idx2]; | ||
1429 | out_1d[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]); | ||
1430 | out_1d[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]); | ||
1431 | } | ||
1432 | } | ||
1433 | } | ||
1434 | |||
1435 | /** | ||
1436 | * | ||
1437 | */ | ||
1438 | |||
1439 | // MDM: tsOutCopy and rawout do not need initializing, so the arrays | ||
1440 | // can be reused. | ||
1441 | float[] tsOutCopy = new float[18]; | ||
1442 | float[] rawout = new float[36]; | ||
1443 | |||
1444 | private void hybrid(int ch, int gr) | ||
1445 | { | ||
1446 | int bt; | ||
1447 | int sb18; | ||
1448 | gr_info_s gr_info = (si.ch[ch].gr[gr]); | ||
1449 | float[] tsOut; | ||
1450 | |||
1451 | float[][] prvblk; | ||
1452 | |||
1453 | for(sb18=0;sb18<576;sb18+=18) | ||
1454 | { | ||
1455 | bt = ((gr_info.window_switching_flag !=0 ) && (gr_info.mixed_block_flag !=0) && | ||
1456 | (sb18 < 36)) ? 0 : gr_info.block_type; | ||
1457 | |||
1458 | tsOut = out_1d; | ||
1459 | // Modif E.B 02/22/99 | ||
1460 | for (int cc = 0;cc<18;cc++) | ||
1461 | tsOutCopy[cc] = tsOut[cc+sb18]; | ||
1462 | |||
1463 | inv_mdct(tsOutCopy, rawout, bt); | ||
1464 | |||
1465 | |||
1466 | for (int cc = 0;cc<18;cc++) | ||
1467 | tsOut[cc+sb18] = tsOutCopy[cc]; | ||
1468 | // Fin Modif | ||
1469 | |||
1470 | // overlap addition | ||
1471 | prvblk = prevblck; | ||
1472 | |||
1473 | tsOut[0 + sb18] = rawout[0] + prvblk[ch][sb18 + 0]; | ||
1474 | prvblk[ch][sb18 + 0] = rawout[18]; | ||
1475 | tsOut[1 + sb18] = rawout[1] + prvblk[ch][sb18 + 1]; | ||
1476 | prvblk[ch][sb18 + 1] = rawout[19]; | ||
1477 | tsOut[2 + sb18] = rawout[2] + prvblk[ch][sb18 + 2]; | ||
1478 | prvblk[ch][sb18 + 2] = rawout[20]; | ||
1479 | tsOut[3 + sb18] = rawout[3] + prvblk[ch][sb18 + 3]; | ||
1480 | prvblk[ch][sb18 + 3] = rawout[21]; | ||
1481 | tsOut[4 + sb18] = rawout[4] + prvblk[ch][sb18 + 4]; | ||
1482 | prvblk[ch][sb18 + 4] = rawout[22]; | ||
1483 | tsOut[5 + sb18] = rawout[5] + prvblk[ch][sb18 + 5]; | ||
1484 | prvblk[ch][sb18 + 5] = rawout[23]; | ||
1485 | tsOut[6 + sb18] = rawout[6] + prvblk[ch][sb18 + 6]; | ||
1486 | prvblk[ch][sb18 + 6] = rawout[24]; | ||
1487 | tsOut[7 + sb18] = rawout[7] + prvblk[ch][sb18 + 7]; | ||
1488 | prvblk[ch][sb18 + 7] = rawout[25]; | ||
1489 | tsOut[8 + sb18] = rawout[8] + prvblk[ch][sb18 + 8]; | ||
1490 | prvblk[ch][sb18 + 8] = rawout[26]; | ||
1491 | tsOut[9 + sb18] = rawout[9] + prvblk[ch][sb18 + 9]; | ||
1492 | prvblk[ch][sb18 + 9] = rawout[27]; | ||
1493 | tsOut[10 + sb18] = rawout[10] + prvblk[ch][sb18 + 10]; | ||
1494 | prvblk[ch][sb18 + 10] = rawout[28]; | ||
1495 | tsOut[11 + sb18] = rawout[11] + prvblk[ch][sb18 + 11]; | ||
1496 | prvblk[ch][sb18 + 11] = rawout[29]; | ||
1497 | tsOut[12 + sb18] = rawout[12] + prvblk[ch][sb18 + 12]; | ||
1498 | prvblk[ch][sb18 + 12] = rawout[30]; | ||
1499 | tsOut[13 + sb18] = rawout[13] + prvblk[ch][sb18 + 13]; | ||
1500 | prvblk[ch][sb18 + 13] = rawout[31]; | ||
1501 | tsOut[14 + sb18] = rawout[14] + prvblk[ch][sb18 + 14]; | ||
1502 | prvblk[ch][sb18 + 14] = rawout[32]; | ||
1503 | tsOut[15 + sb18] = rawout[15] + prvblk[ch][sb18 + 15]; | ||
1504 | prvblk[ch][sb18 + 15] = rawout[33]; | ||
1505 | tsOut[16 + sb18] = rawout[16] + prvblk[ch][sb18 + 16]; | ||
1506 | prvblk[ch][sb18 + 16] = rawout[34]; | ||
1507 | tsOut[17 + sb18] = rawout[17] + prvblk[ch][sb18 + 17]; | ||
1508 | prvblk[ch][sb18 + 17] = rawout[35]; | ||
1509 | } | ||
1510 | } | ||
1511 | |||
1512 | /** | ||
1513 | * | ||
1514 | */ | ||
1515 | private void do_downmix() | ||
1516 | { | ||
1517 | for (int sb=0; sb<SSLIMIT; sb++) { | ||
1518 | for (int ss=0; ss<SSLIMIT; ss+=3) { | ||
1519 | lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f; | ||
1520 | lr[0][sb][ss+1] = (lr[0][sb][ss+1] + lr[1][sb][ss+1]) * 0.5f; | ||
1521 | lr[0][sb][ss+2] = (lr[0][sb][ss+2] + lr[1][sb][ss+2]) * 0.5f; | ||
1522 | } | ||
1523 | } | ||
1524 | } | ||
1525 | |||
1526 | /** | ||
1527 | * Fast INV_MDCT. | ||
1528 | */ | ||
1529 | |||
1530 | public void inv_mdct(float[] in, float[] out, int block_type) | ||
1531 | { | ||
1532 | float[] win_bt; | ||
1533 | int i; | ||
1534 | |||
1535 | float tmpf_0, tmpf_1, tmpf_2, tmpf_3, tmpf_4, tmpf_5, tmpf_6, tmpf_7, tmpf_8, tmpf_9; | ||
1536 | float tmpf_10, tmpf_11, tmpf_12, tmpf_13, tmpf_14, tmpf_15, tmpf_16, tmpf_17; | ||
1537 | |||
1538 | tmpf_0 = tmpf_1 = tmpf_2 = tmpf_3 = tmpf_4 = tmpf_5 = tmpf_6 = tmpf_7 = tmpf_8 = tmpf_9 = | ||
1539 | tmpf_10 = tmpf_11 = tmpf_12 = tmpf_13 = tmpf_14 = tmpf_15 = tmpf_16 = tmpf_17 = 0.0f; | ||
1540 | |||
1541 | |||
1542 | |||
1543 | if(block_type == 2) | ||
1544 | { | ||
1545 | |||
1546 | /* | ||
1547 | * | ||
1548 | * Under MicrosoftVM 2922, This causes a GPF, or | ||
1549 | * At best, an ArrayIndexOutOfBoundsExceptin. | ||
1550 | for(int p=0;p<36;p+=9) | ||
1551 | { | ||
1552 | out[p] = out[p+1] = out[p+2] = out[p+3] = | ||
1553 | out[p+4] = out[p+5] = out[p+6] = out[p+7] = | ||
1554 | out[p+8] = 0.0f; | ||
1555 | } | ||
1556 | */ | ||
1557 | out[0] = 0.0f; | ||
1558 | out[1] = 0.0f; | ||
1559 | out[2] = 0.0f; | ||
1560 | out[3] = 0.0f; | ||
1561 | out[4] = 0.0f; | ||
1562 | out[5] = 0.0f; | ||
1563 | out[6] = 0.0f; | ||
1564 | out[7] = 0.0f; | ||
1565 | out[8] = 0.0f; | ||
1566 | out[9] = 0.0f; | ||
1567 | out[10] = 0.0f; | ||
1568 | out[11] = 0.0f; | ||
1569 | out[12] = 0.0f; | ||
1570 | out[13] = 0.0f; | ||
1571 | out[14] = 0.0f; | ||
1572 | out[15] = 0.0f; | ||
1573 | out[16] = 0.0f; | ||
1574 | out[17] = 0.0f; | ||
1575 | out[18] = 0.0f; | ||
1576 | out[19] = 0.0f; | ||
1577 | out[20] = 0.0f; | ||
1578 | out[21] = 0.0f; | ||
1579 | out[22] = 0.0f; | ||
1580 | out[23] = 0.0f; | ||
1581 | out[24] = 0.0f; | ||
1582 | out[25] = 0.0f; | ||
1583 | out[26] = 0.0f; | ||
1584 | out[27] = 0.0f; | ||
1585 | out[28] = 0.0f; | ||
1586 | out[29] = 0.0f; | ||
1587 | out[30] = 0.0f; | ||
1588 | out[31] = 0.0f; | ||
1589 | out[32] = 0.0f; | ||
1590 | out[33] = 0.0f; | ||
1591 | out[34] = 0.0f; | ||
1592 | out[35] = 0.0f; | ||
1593 | |||
1594 | int six_i = 0; | ||
1595 | |||
1596 | for(i=0;i<3;i++) | ||
1597 | { | ||
1598 | // 12 point IMDCT | ||
1599 | // Begin 12 point IDCT | ||
1600 | // Input aliasing for 12 pt IDCT | ||
1601 | in[15+i] += in[12+i]; in[12+i] += in[9+i]; in[9+i] += in[6+i]; | ||
1602 | in[6+i] += in[3+i]; in[3+i] += in[0+i]; | ||
1603 | |||
1604 | // Input aliasing on odd indices (for 6 point IDCT) | ||
1605 | in[15+i] += in[9+i]; in[9+i] += in[3+i]; | ||
1606 | |||
1607 | // 3 point IDCT on even indices | ||
1608 | float pp1, pp2, sum; | ||
1609 | pp2 = in[12+i] * 0.500000000f; | ||
1610 | pp1 = in[ 6+i] * 0.866025403f; | ||
1611 | sum = in[0+i] + pp2; | ||
1612 | tmpf_1 = in[0+i] - in[12+i]; | ||
1613 | tmpf_0 = sum + pp1; | ||
1614 | tmpf_2 = sum - pp1; | ||
1615 | |||
1616 | // End 3 point IDCT on even indices | ||
1617 | // 3 point IDCT on odd indices (for 6 point IDCT) | ||
1618 | pp2 = in[15+i] * 0.500000000f; | ||
1619 | pp1 = in[ 9+i] * 0.866025403f; | ||
1620 | sum = in[ 3+i] + pp2; | ||
1621 | tmpf_4 = in[3+i] - in[15+i]; | ||
1622 | tmpf_5 = sum + pp1; | ||
1623 | tmpf_3 = sum - pp1; | ||
1624 | // End 3 point IDCT on odd indices | ||
1625 | // Twiddle factors on odd indices (for 6 point IDCT) | ||
1626 | |||
1627 | tmpf_3 *= 1.931851653f; | ||
1628 | tmpf_4 *= 0.707106781f; | ||
1629 | tmpf_5 *= 0.517638090f; | ||
1630 | |||
1631 | // Output butterflies on 2 3 point IDCT's (for 6 point IDCT) | ||
1632 | float save = tmpf_0; | ||
1633 | tmpf_0 += tmpf_5; | ||
1634 | tmpf_5 = save - tmpf_5; | ||
1635 | save = tmpf_1; | ||
1636 | tmpf_1 += tmpf_4; | ||
1637 | tmpf_4 = save - tmpf_4; | ||
1638 | save = tmpf_2; | ||
1639 | tmpf_2 += tmpf_3; | ||
1640 | tmpf_3 = save - tmpf_3; | ||
1641 | |||
1642 | // End 6 point IDCT | ||
1643 | // Twiddle factors on indices (for 12 point IDCT) | ||
1644 | |||
1645 | tmpf_0 *= 0.504314480f; | ||
1646 | tmpf_1 *= 0.541196100f; | ||
1647 | tmpf_2 *= 0.630236207f; | ||
1648 | tmpf_3 *= 0.821339815f; | ||
1649 | tmpf_4 *= 1.306562965f; | ||
1650 | tmpf_5 *= 3.830648788f; | ||
1651 | |||
1652 | // End 12 point IDCT | ||
1653 | |||
1654 | // Shift to 12 point modified IDCT, multiply by window type 2 | ||
1655 | tmpf_8 = -tmpf_0 * 0.793353340f; | ||
1656 | tmpf_9 = -tmpf_0 * 0.608761429f; | ||
1657 | tmpf_7 = -tmpf_1 * 0.923879532f; | ||
1658 | tmpf_10 = -tmpf_1 * 0.382683432f; | ||
1659 | tmpf_6 = -tmpf_2 * 0.991444861f; | ||
1660 | tmpf_11 = -tmpf_2 * 0.130526192f; | ||
1661 | |||
1662 | tmpf_0 = tmpf_3; | ||
1663 | tmpf_1 = tmpf_4 * 0.382683432f; | ||
1664 | tmpf_2 = tmpf_5 * 0.608761429f; | ||
1665 | |||
1666 | tmpf_3 = -tmpf_5 * 0.793353340f; | ||
1667 | tmpf_4 = -tmpf_4 * 0.923879532f; | ||
1668 | tmpf_5 = -tmpf_0 * 0.991444861f; | ||
1669 | |||
1670 | tmpf_0 *= 0.130526192f; | ||
1671 | |||
1672 | out[six_i + 6] += tmpf_0; | ||
1673 | out[six_i + 7] += tmpf_1; | ||
1674 | out[six_i + 8] += tmpf_2; | ||
1675 | out[six_i + 9] += tmpf_3; | ||
1676 | out[six_i + 10] += tmpf_4; | ||
1677 | out[six_i + 11] += tmpf_5; | ||
1678 | out[six_i + 12] += tmpf_6; | ||
1679 | out[six_i + 13] += tmpf_7; | ||
1680 | out[six_i + 14] += tmpf_8; | ||
1681 | out[six_i + 15] += tmpf_9; | ||
1682 | out[six_i + 16] += tmpf_10; | ||
1683 | out[six_i + 17] += tmpf_11; | ||
1684 | |||
1685 | six_i += 6; | ||
1686 | } | ||
1687 | } | ||
1688 | else | ||
1689 | { | ||
1690 | // 36 point IDCT | ||
1691 | // input aliasing for 36 point IDCT | ||
1692 | in[17]+=in[16]; in[16]+=in[15]; in[15]+=in[14]; in[14]+=in[13]; | ||
1693 | in[13]+=in[12]; in[12]+=in[11]; in[11]+=in[10]; in[10]+=in[9]; | ||
1694 | in[9] +=in[8]; in[8] +=in[7]; in[7] +=in[6]; in[6] +=in[5]; | ||
1695 | in[5] +=in[4]; in[4] +=in[3]; in[3] +=in[2]; in[2] +=in[1]; | ||
1696 | in[1] +=in[0]; | ||
1697 | |||
1698 | // 18 point IDCT for odd indices | ||
1699 | // input aliasing for 18 point IDCT | ||
1700 | in[17]+=in[15]; in[15]+=in[13]; in[13]+=in[11]; in[11]+=in[9]; | ||
1701 | in[9] +=in[7]; in[7] +=in[5]; in[5] +=in[3]; in[3] +=in[1]; | ||
1702 | |||
1703 | float tmp0,tmp1,tmp2,tmp3,tmp4,tmp0_,tmp1_,tmp2_,tmp3_; | ||
1704 | float tmp0o,tmp1o,tmp2o,tmp3o,tmp4o,tmp0_o,tmp1_o,tmp2_o,tmp3_o; | ||
1705 | |||
1706 | // Fast 9 Point Inverse Discrete Cosine Transform | ||
1707 | // | ||
1708 | // By Francois-Raymond Boyer | ||
1709 | // mailto:boyerf@iro.umontreal.ca | ||
1710 | // http://www.iro.umontreal.ca/~boyerf | ||
1711 | // | ||
1712 | // The code has been optimized for Intel processors | ||
1713 | // (takes a lot of time to convert float to and from iternal FPU representation) | ||
1714 | // | ||
1715 | // It is a simple "factorization" of the IDCT matrix. | ||
1716 | |||
1717 | // 9 point IDCT on even indices | ||
1718 | |||
1719 | // 5 points on odd indices (not realy an IDCT) | ||
1720 | float i00 = in[0]+in[0]; | ||
1721 | float iip12 = i00 + in[12]; | ||
1722 | |||
1723 | tmp0 = iip12 + in[4]*1.8793852415718f + in[8]*1.532088886238f + in[16]*0.34729635533386f; | ||
1724 | tmp1 = i00 + in[4] - in[8] - in[12] - in[12] - in[16]; | ||
1725 | tmp2 = iip12 - in[4]*0.34729635533386f - in[8]*1.8793852415718f + in[16]*1.532088886238f; | ||
1726 | tmp3 = iip12 - in[4]*1.532088886238f + in[8]*0.34729635533386f - in[16]*1.8793852415718f; | ||
1727 | tmp4 = in[0] - in[4] + in[8] - in[12] + in[16]; | ||
1728 | |||
1729 | // 4 points on even indices | ||
1730 | float i66_ = in[6]*1.732050808f; // Sqrt[3] | ||
1731 | |||
1732 | tmp0_ = in[2]*1.9696155060244f + i66_ + in[10]*1.2855752193731f + in[14]*0.68404028665134f; | ||
1733 | tmp1_ = (in[2] - in[10] - in[14])*1.732050808f; | ||
1734 | tmp2_ = in[2]*1.2855752193731f - i66_ - in[10]*0.68404028665134f + in[14]*1.9696155060244f; | ||
1735 | tmp3_ = in[2]*0.68404028665134f - i66_ + in[10]*1.9696155060244f - in[14]*1.2855752193731f; | ||
1736 | |||
1737 | // 9 point IDCT on odd indices | ||
1738 | // 5 points on odd indices (not realy an IDCT) | ||
1739 | float i0 = in[0+1]+in[0+1]; | ||
1740 | float i0p12 = i0 + in[12+1]; | ||
1741 | |||
1742 | tmp0o = i0p12 + in[4+1]*1.8793852415718f + in[8+1]*1.532088886238f + in[16+1]*0.34729635533386f; | ||
1743 | tmp1o = i0 + in[4+1] - in[8+1] - in[12+1] - in[12+1] - in[16+1]; | ||
1744 | tmp2o = i0p12 - in[4+1]*0.34729635533386f - in[8+1]*1.8793852415718f + in[16+1]*1.532088886238f; | ||
1745 | tmp3o = i0p12 - in[4+1]*1.532088886238f + in[8+1]*0.34729635533386f - in[16+1]*1.8793852415718f; | ||
1746 | tmp4o = (in[0+1] - in[4+1] + in[8+1] - in[12+1] + in[16+1])*0.707106781f; // Twiddled | ||
1747 | |||
1748 | // 4 points on even indices | ||
1749 | float i6_ = in[6+1]*1.732050808f; // Sqrt[3] | ||
1750 | |||
1751 | tmp0_o = in[2+1]*1.9696155060244f + i6_ + in[10+1]*1.2855752193731f + in[14+1]*0.68404028665134f; | ||
1752 | tmp1_o = (in[2+1] - in[10+1] - in[14+1])*1.732050808f; | ||
1753 | tmp2_o = in[2+1]*1.2855752193731f - i6_ - in[10+1]*0.68404028665134f + in[14+1]*1.9696155060244f; | ||
1754 | tmp3_o = in[2+1]*0.68404028665134f - i6_ + in[10+1]*1.9696155060244f - in[14+1]*1.2855752193731f; | ||
1755 | |||
1756 | // Twiddle factors on odd indices | ||
1757 | // and | ||
1758 | // Butterflies on 9 point IDCT's | ||
1759 | // and | ||
1760 | // twiddle factors for 36 point IDCT | ||
1761 | |||
1762 | float e, o; | ||
1763 | e = tmp0 + tmp0_; o = (tmp0o + tmp0_o)*0.501909918f; tmpf_0 = e + o; tmpf_17 = e - o; | ||
1764 | e = tmp1 + tmp1_; o = (tmp1o + tmp1_o)*0.517638090f; tmpf_1 = e + o; tmpf_16 = e - o; | ||
1765 | e = tmp2 + tmp2_; o = (tmp2o + tmp2_o)*0.551688959f; tmpf_2 = e + o; tmpf_15 = e - o; | ||
1766 | e = tmp3 + tmp3_; o = (tmp3o + tmp3_o)*0.610387294f; tmpf_3 = e + o; tmpf_14 = e - o; | ||
1767 | tmpf_4 = tmp4 + tmp4o; tmpf_13 = tmp4 - tmp4o; | ||
1768 | e = tmp3 - tmp3_; o = (tmp3o - tmp3_o)*0.871723397f; tmpf_5 = e + o; tmpf_12 = e - o; | ||
1769 | e = tmp2 - tmp2_; o = (tmp2o - tmp2_o)*1.183100792f; tmpf_6 = e + o; tmpf_11 = e - o; | ||
1770 | e = tmp1 - tmp1_; o = (tmp1o - tmp1_o)*1.931851653f; tmpf_7 = e + o; tmpf_10 = e - o; | ||
1771 | e = tmp0 - tmp0_; o = (tmp0o - tmp0_o)*5.736856623f; tmpf_8 = e + o; tmpf_9 = e - o; | ||
1772 | |||
1773 | // end 36 point IDCT */ | ||
1774 | // shift to modified IDCT | ||
1775 | win_bt = win[block_type]; | ||
1776 | |||
1777 | out[0] =-tmpf_9 * win_bt[0]; | ||
1778 | out[1] =-tmpf_10 * win_bt[1]; | ||
1779 | out[2] =-tmpf_11 * win_bt[2]; | ||
1780 | out[3] =-tmpf_12 * win_bt[3]; | ||
1781 | out[4] =-tmpf_13 * win_bt[4]; | ||
1782 | out[5] =-tmpf_14 * win_bt[5]; | ||
1783 | out[6] =-tmpf_15 * win_bt[6]; | ||
1784 | out[7] =-tmpf_16 * win_bt[7]; | ||
1785 | out[8] =-tmpf_17 * win_bt[8]; | ||
1786 | out[9] = tmpf_17 * win_bt[9]; | ||
1787 | out[10]= tmpf_16 * win_bt[10]; | ||
1788 | out[11]= tmpf_15 * win_bt[11]; | ||
1789 | out[12]= tmpf_14 * win_bt[12]; | ||
1790 | out[13]= tmpf_13 * win_bt[13]; | ||
1791 | out[14]= tmpf_12 * win_bt[14]; | ||
1792 | out[15]= tmpf_11 * win_bt[15]; | ||
1793 | out[16]= tmpf_10 * win_bt[16]; | ||
1794 | out[17]= tmpf_9 * win_bt[17]; | ||
1795 | out[18]= tmpf_8 * win_bt[18]; | ||
1796 | out[19]= tmpf_7 * win_bt[19]; | ||
1797 | out[20]= tmpf_6 * win_bt[20]; | ||
1798 | out[21]= tmpf_5 * win_bt[21]; | ||
1799 | out[22]= tmpf_4 * win_bt[22]; | ||
1800 | out[23]= tmpf_3 * win_bt[23]; | ||
1801 | out[24]= tmpf_2 * win_bt[24]; | ||
1802 | out[25]= tmpf_1 * win_bt[25]; | ||
1803 | out[26]= tmpf_0 * win_bt[26]; | ||
1804 | out[27]= tmpf_0 * win_bt[27]; | ||
1805 | out[28]= tmpf_1 * win_bt[28]; | ||
1806 | out[29]= tmpf_2 * win_bt[29]; | ||
1807 | out[30]= tmpf_3 * win_bt[30]; | ||
1808 | out[31]= tmpf_4 * win_bt[31]; | ||
1809 | out[32]= tmpf_5 * win_bt[32]; | ||
1810 | out[33]= tmpf_6 * win_bt[33]; | ||
1811 | out[34]= tmpf_7 * win_bt[34]; | ||
1812 | out[35]= tmpf_8 * win_bt[35]; | ||
1813 | } | ||
1814 | } | ||
1815 | |||
1816 | private int counter = 0; | ||
1817 | private static final int SSLIMIT=18; | ||
1818 | private static final int SBLIMIT=32; | ||
1819 | // Size of the table of whole numbers raised to 4/3 power. | ||
1820 | // This may be adjusted for performance without any problems. | ||
1821 | //public static final int POW_TABLE_LIMIT=512; | ||
1822 | |||
1823 | /************************************************************/ | ||
1824 | /* L3TABLE */ | ||
1825 | /************************************************************/ | ||
1826 | |||
1827 | static class SBI | ||
1828 | { | ||
1829 | public int[] l; | ||
1830 | public int[] s; | ||
1831 | |||
1832 | public SBI() | ||
1833 | { | ||
1834 | l = new int[23]; | ||
1835 | s = new int[14]; | ||
1836 | } | ||
1837 | public SBI(int[] thel, int[] thes) | ||
1838 | { | ||
1839 | l = thel; | ||
1840 | s = thes; | ||
1841 | } | ||
1842 | } | ||
1843 | |||
1844 | static class gr_info_s | ||
1845 | { | ||
1846 | public int part2_3_length = 0; | ||
1847 | public int big_values = 0; | ||
1848 | public int global_gain = 0; | ||
1849 | public int scalefac_compress = 0; | ||
1850 | public int window_switching_flag = 0; | ||
1851 | public int block_type = 0; | ||
1852 | public int mixed_block_flag = 0; | ||
1853 | public int[] table_select; | ||
1854 | public int[] subblock_gain; | ||
1855 | public int region0_count = 0; | ||
1856 | public int region1_count = 0; | ||
1857 | public int preflag = 0; | ||
1858 | public int scalefac_scale = 0; | ||
1859 | public int count1table_select = 0; | ||
1860 | |||
1861 | /** | ||
1862 | * Dummy Constructor | ||
1863 | */ | ||
1864 | public gr_info_s() | ||
1865 | { | ||
1866 | table_select = new int[3]; | ||
1867 | subblock_gain = new int[3]; | ||
1868 | } | ||
1869 | } | ||
1870 | |||
1871 | static class temporaire | ||
1872 | { | ||
1873 | public int[] scfsi; | ||
1874 | public gr_info_s[] gr; | ||
1875 | |||
1876 | /** | ||
1877 | * Dummy Constructor | ||
1878 | */ | ||
1879 | public temporaire() | ||
1880 | { | ||
1881 | scfsi = new int[4]; | ||
1882 | gr = new gr_info_s[2]; | ||
1883 | gr[0] = new gr_info_s(); | ||
1884 | gr[1] = new gr_info_s(); | ||
1885 | } | ||
1886 | } | ||
1887 | |||
1888 | static class III_side_info_t | ||
1889 | { | ||
1890 | |||
1891 | public int main_data_begin = 0; | ||
1892 | public int private_bits = 0; | ||
1893 | public temporaire[] ch; | ||
1894 | /** | ||
1895 | * Dummy Constructor | ||
1896 | */ | ||
1897 | public III_side_info_t() | ||
1898 | { | ||
1899 | ch = new temporaire[2]; | ||
1900 | ch[0] = new temporaire(); | ||
1901 | ch[1] = new temporaire(); | ||
1902 | } | ||
1903 | } | ||
1904 | |||
1905 | static class temporaire2 | ||
1906 | { | ||
1907 | public int[] l; /* [cb] */ | ||
1908 | public int[][] s; /* [window][cb] */ | ||
1909 | |||
1910 | /** | ||
1911 | * Dummy Constructor | ||
1912 | */ | ||
1913 | public temporaire2() | ||
1914 | { | ||
1915 | l = new int[23]; | ||
1916 | s = new int[3][13]; | ||
1917 | } | ||
1918 | } | ||
1919 | //class III_scalefac_t | ||
1920 | //{ | ||
1921 | // public temporaire2[] tab; | ||
1922 | // /** | ||
1923 | // * Dummy Constructor | ||
1924 | // */ | ||
1925 | // public III_scalefac_t() | ||
1926 | // { | ||
1927 | // tab = new temporaire2[2]; | ||
1928 | // } | ||
1929 | //} | ||
1930 | |||
1931 | private static final int slen[][] = | ||
1932 | { | ||
1933 | {0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}, | ||
1934 | {0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3} | ||
1935 | }; | ||
1936 | |||
1937 | public static final int pretab[] = | ||
1938 | {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0}; | ||
1939 | |||
1940 | private SBI[] sfBandIndex; // Init in the constructor. | ||
1941 | |||
1942 | public static final float two_to_negative_half_pow[] = | ||
1943 | { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339059E-01f, | ||
1944 | 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347648E-02f, | ||
1945 | 6.2500000000E-02f, 4.4194173824E-02f, 3.1250000000E-02f, 2.2097086912E-02f, | ||
1946 | 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000000E-03f, 5.5242717280E-03f, | ||
1947 | 3.9062500000E-03f, 2.7621358640E-03f, 1.9531250000E-03f, 1.3810679320E-03f, | ||
1948 | 9.7656250000E-04f, 6.9053396600E-04f, 4.8828125000E-04f, 3.4526698300E-04f, | ||
1949 | 2.4414062500E-04f, 1.7263349150E-04f, 1.2207031250E-04f, 8.6316745750E-05f, | ||
1950 | 6.1035156250E-05f, 4.3158372875E-05f, 3.0517578125E-05f, 2.1579186438E-05f, | ||
1951 | 1.5258789062E-05f, 1.0789593219E-05f, 7.6293945312E-06f, 5.3947966094E-06f, | ||
1952 | 3.8146972656E-06f, 2.6973983047E-06f, 1.9073486328E-06f, 1.3486991523E-06f, | ||
1953 | 9.5367431641E-07f, 6.7434957617E-07f, 4.7683715820E-07f, 3.3717478809E-07f, | ||
1954 | 2.3841857910E-07f, 1.6858739404E-07f, 1.1920928955E-07f, 8.4293697022E-08f, | ||
1955 | 5.9604644775E-08f, 4.2146848511E-08f, 2.9802322388E-08f, 2.1073424255E-08f, | ||
1956 | 1.4901161194E-08f, 1.0536712128E-08f, 7.4505805969E-09f, 5.2683560639E-09f, | ||
1957 | 3.7252902985E-09f, 2.6341780319E-09f, 1.8626451492E-09f, 1.3170890160E-09f, | ||
1958 | 9.3132257462E-10f, 6.5854450798E-10f, 4.6566128731E-10f, 3.2927225399E-10f | ||
1959 | }; | ||
1960 | |||
1961 | |||
1962 | public static final float t_43[] = create_t_43(); | ||
1963 | |||
1964 | static private float[] create_t_43() | ||
1965 | { | ||
1966 | float[] t43 = new float[8192]; | ||
1967 | final double d43 = (4.0/3.0); | ||
1968 | |||
1969 | for (int i=0; i<8192; i++) | ||
1970 | { | ||
1971 | t43[i] = (float)Math.pow(i, d43); | ||
1972 | } | ||
1973 | return t43; | ||
1974 | } | ||
1975 | |||
1976 | public static final float io[][] = | ||
1977 | { | ||
1978 | { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f, | ||
1979 | 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f, | ||
1980 | 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f, | ||
1981 | 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f, | ||
1982 | 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f, | ||
1983 | 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f, | ||
1984 | 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f, | ||
1985 | 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f }, | ||
1986 | { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f, | ||
1987 | 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f, | ||
1988 | 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f, | ||
1989 | 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f, | ||
1990 | 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f, | ||
1991 | 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f, | ||
1992 | 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f, | ||
1993 | 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } | ||
1994 | }; | ||
1995 | |||
1996 | |||
1997 | |||
1998 | public static final float TAN12[] = | ||
1999 | { | ||
2000 | 0.0f, 0.26794919f, 0.57735027f, 1.0f, | ||
2001 | 1.73205081f, 3.73205081f, 9.9999999e10f, -3.73205081f, | ||
2002 | -1.73205081f, -1.0f, -0.57735027f, -0.26794919f, | ||
2003 | 0.0f, 0.26794919f, 0.57735027f, 1.0f | ||
2004 | }; | ||
2005 | |||
2006 | // REVIEW: in java, the array lookup may well be slower than | ||
2007 | // the actual calculation | ||
2008 | // 576 / 18 | ||
2009 | /* | ||
2010 | private static final int ss_div[] = | ||
2011 | { | ||
2012 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
2013 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | ||
2014 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | ||
2015 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, | ||
2016 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | ||
2017 | 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | ||
2018 | 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, | ||
2019 | 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, | ||
2020 | 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, | ||
2021 | 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, | ||
2022 | 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, | ||
2023 | 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, | ||
2024 | 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, | ||
2025 | 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, | ||
2026 | 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, | ||
2027 | 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, | ||
2028 | 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, | ||
2029 | 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, | ||
2030 | 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, | ||
2031 | 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, | ||
2032 | 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, | ||
2033 | 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, | ||
2034 | 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, | ||
2035 | 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, | ||
2036 | 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, | ||
2037 | 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, | ||
2038 | 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, | ||
2039 | 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, | ||
2040 | 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, | ||
2041 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | ||
2042 | 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, | ||
2043 | 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 | ||
2044 | }; | ||
2045 | |||
2046 | // 576 % 18 | ||
2047 | private static final int ss_mod[] = | ||
2048 | { | ||
2049 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2050 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2051 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2052 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2053 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2054 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2055 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2056 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2057 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2058 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2059 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2060 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2061 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2062 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2063 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2064 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2065 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2066 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2067 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2068 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2069 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2070 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2071 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2072 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2073 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2074 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2075 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2076 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2077 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2078 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2079 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, | ||
2080 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 | ||
2081 | }; | ||
2082 | */ | ||
2083 | private static /*final*/ int reorder_table[][]/* = loadReorderTable()*/; // SZD: will be generated on demand | ||
2084 | |||
2085 | /** | ||
2086 | * Loads the data for the reorder | ||
2087 | */ | ||
2088 | /*private static int[][] loadReorderTable() // SZD: table will be generated | ||
2089 | { | ||
2090 | try | ||
2091 | { | ||
2092 | Class elemType = int[][].class.getComponentType(); | ||
2093 | Object o = JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6); | ||
2094 | return (int[][])o; | ||
2095 | } | ||
2096 | catch (IOException ex) | ||
2097 | { | ||
2098 | throw new ExceptionInInitializerError(ex); | ||
2099 | } | ||
2100 | }*/ | ||
2101 | |||
2102 | static int[] reorder(int scalefac_band[]) { // SZD: converted from LAME | ||
2103 | int j = 0; | ||
2104 | int ix[] = new int[576]; | ||
2105 | for(int sfb = 0; sfb < 13; sfb++) { | ||
2106 | int start = scalefac_band[sfb]; | ||
2107 | int end = scalefac_band[sfb + 1]; | ||
2108 | for(int window = 0; window < 3; window++) | ||
2109 | for(int i = start; i < end; i++) | ||
2110 | ix[3 * i + window] = j++; | ||
2111 | } | ||
2112 | return ix; | ||
2113 | } | ||
2114 | |||
2115 | /*static final int reorder_table_data[][]; = | ||
2116 | { | ||
2117 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2118 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2119 | 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45, 51, | ||
2120 | 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, | ||
2121 | 63, 69, 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, | ||
2122 | 90, 75, 83, 91, 76, 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, | ||
2123 | 96,106,116, 97,107,117, 98,108,118, 99,109,119,100,110,120,101, | ||
2124 | 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140, | ||
2125 | 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159, | ||
2126 | 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137, | ||
2127 | 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188, | ||
2128 | 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211, | ||
2129 | 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181, | ||
2130 | 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248, | ||
2131 | 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279, | ||
2132 | 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233, | ||
2133 | 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264, | ||
2134 | 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295, | ||
2135 | 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301, | ||
2136 | 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338, | ||
2137 | 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375, | ||
2138 | 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317, | ||
2139 | 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354, | ||
2140 | 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391, | ||
2141 | 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397, | ||
2142 | 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444, | ||
2143 | 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491, | ||
2144 | 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413, | ||
2145 | 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460, | ||
2146 | 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507, | ||
2147 | 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429, | ||
2148 | 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476, | ||
2149 | 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559, | ||
2150 | 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529, | ||
2151 | 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552, | ||
2152 | 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, | ||
2153 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2154 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2155 | 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45, 51, | ||
2156 | 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56, 64, 72, 57, | ||
2157 | 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88, | ||
2158 | 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, | ||
2159 | 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109, | ||
2160 | 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126, | ||
2161 | 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143, | ||
2162 | 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149, | ||
2163 | 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168, | ||
2164 | 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223, | ||
2165 | 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193, | ||
2166 | 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216, | ||
2167 | 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239, | ||
2168 | 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245, | ||
2169 | 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274, | ||
2170 | 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303, | ||
2171 | 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261, | ||
2172 | 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346, | ||
2173 | 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383, | ||
2174 | 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325, | ||
2175 | 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362, | ||
2176 | 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399, | ||
2177 | 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341, | ||
2178 | 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454, | ||
2179 | 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503, | ||
2180 | 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421, | ||
2181 | 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470, | ||
2182 | 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519, | ||
2183 | 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437, | ||
2184 | 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486, | ||
2185 | 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535, | ||
2186 | 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541, | ||
2187 | 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558, | ||
2188 | 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, | ||
2189 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2190 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2191 | 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45, 51, | ||
2192 | 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56, 64, 72, 57, | ||
2193 | 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88, | ||
2194 | 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, | ||
2195 | 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109, | ||
2196 | 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126, | ||
2197 | 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143, | ||
2198 | 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149, | ||
2199 | 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168, | ||
2200 | 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223, | ||
2201 | 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193, | ||
2202 | 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216, | ||
2203 | 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239, | ||
2204 | 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245, | ||
2205 | 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274, | ||
2206 | 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303, | ||
2207 | 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261, | ||
2208 | 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344, | ||
2209 | 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379, | ||
2210 | 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325, | ||
2211 | 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360, | ||
2212 | 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395, | ||
2213 | 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341, | ||
2214 | 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446, | ||
2215 | 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491, | ||
2216 | 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417, | ||
2217 | 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462, | ||
2218 | 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507, | ||
2219 | 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433, | ||
2220 | 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478, | ||
2221 | 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559, | ||
2222 | 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529, | ||
2223 | 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552, | ||
2224 | 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, | ||
2225 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2226 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2227 | 34, 27, 31, 35, 36, 40, 44, 37, 41, 45, 38, 42, 46, 39, 43, 47, | ||
2228 | 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52, 58, 64, 53, | ||
2229 | 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78, | ||
2230 | 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, | ||
2231 | 92,102,112, 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, | ||
2232 | 107,117, 98,108,118, 99,109,119,120,132,144,121,133,145,122,134, | ||
2233 | 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151, | ||
2234 | 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157, | ||
2235 | 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176, | ||
2236 | 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195, | ||
2237 | 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201, | ||
2238 | 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224, | ||
2239 | 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247, | ||
2240 | 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253, | ||
2241 | 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280, | ||
2242 | 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307, | ||
2243 | 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269, | ||
2244 | 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348, | ||
2245 | 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383, | ||
2246 | 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329, | ||
2247 | 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364, | ||
2248 | 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399, | ||
2249 | 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345, | ||
2250 | 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466, | ||
2251 | 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527, | ||
2252 | 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421, | ||
2253 | 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482, | ||
2254 | 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543, | ||
2255 | 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437, | ||
2256 | 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498, | ||
2257 | 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559, | ||
2258 | 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453, | ||
2259 | 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514, | ||
2260 | 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, | ||
2261 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2262 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2263 | 34, 27, 31, 35, 36, 40, 44, 37, 41, 45, 38, 42, 46, 39, 43, 47, | ||
2264 | 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52, 58, 64, 53, | ||
2265 | 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76, | ||
2266 | 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, | ||
2267 | 88, 98,108, 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93, | ||
2268 | 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130, | ||
2269 | 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147, | ||
2270 | 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153, | ||
2271 | 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172, | ||
2272 | 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191, | ||
2273 | 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197, | ||
2274 | 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218, | ||
2275 | 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239, | ||
2276 | 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245, | ||
2277 | 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270, | ||
2278 | 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295, | ||
2279 | 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301, | ||
2280 | 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332, | ||
2281 | 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363, | ||
2282 | 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317, | ||
2283 | 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348, | ||
2284 | 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511, | ||
2285 | 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385, | ||
2286 | 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456, | ||
2287 | 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527, | ||
2288 | 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401, | ||
2289 | 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472, | ||
2290 | 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543, | ||
2291 | 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417, | ||
2292 | 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488, | ||
2293 | 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559, | ||
2294 | 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433, | ||
2295 | 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504, | ||
2296 | 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, | ||
2297 | { 0, 4, 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, | ||
2298 | 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25, 29, 33, 26, 30, | ||
2299 | 34, 27, 31, 35, 36, 40, 44, 37, 41, 45, 38, 42, 46, 39, 43, 47, | ||
2300 | 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52, 58, 64, 53, | ||
2301 | 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78, | ||
2302 | 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, | ||
2303 | 92,104,116, 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, | ||
2304 | 109,121, 98,110,122, 99,111,123,100,112,124,101,113,125,126,142, | ||
2305 | 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163, | ||
2306 | 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137, | ||
2307 | 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194, | ||
2308 | 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219, | ||
2309 | 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185, | ||
2310 | 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210, | ||
2311 | 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287, | ||
2312 | 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241, | ||
2313 | 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272, | ||
2314 | 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303, | ||
2315 | 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257, | ||
2316 | 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348, | ||
2317 | 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387, | ||
2318 | 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325, | ||
2319 | 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364, | ||
2320 | 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403, | ||
2321 | 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341, | ||
2322 | 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456, | ||
2323 | 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503, | ||
2324 | 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425, | ||
2325 | 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472, | ||
2326 | 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519, | ||
2327 | 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441, | ||
2328 | 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488, | ||
2329 | 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535, | ||
2330 | 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541, | ||
2331 | 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558, | ||
2332 | 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} | ||
2333 | }; | ||
2334 | */ | ||
2335 | |||
2336 | private static final float cs[] = | ||
2337 | { | ||
2338 | 0.857492925712f, 0.881741997318f, 0.949628649103f, 0.983314592492f, | ||
2339 | 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f | ||
2340 | }; | ||
2341 | |||
2342 | private static final float ca[] = | ||
2343 | { | ||
2344 | -0.5144957554270f, -0.4717319685650f, -0.3133774542040f, -0.1819131996110f, | ||
2345 | -0.0945741925262f, -0.0409655828852f, -0.0141985685725f, -0.00369997467375f | ||
2346 | }; | ||
2347 | |||
2348 | /************************************************************/ | ||
2349 | /* END OF L3TABLE */ | ||
2350 | /************************************************************/ | ||
2351 | |||
2352 | /************************************************************/ | ||
2353 | /* L3TYPE */ | ||
2354 | /************************************************************/ | ||
2355 | |||
2356 | |||
2357 | /***************************************************************/ | ||
2358 | /* END OF L3TYPE */ | ||
2359 | /***************************************************************/ | ||
2360 | |||
2361 | /***************************************************************/ | ||
2362 | /* INV_MDCT */ | ||
2363 | /***************************************************************/ | ||
2364 | public static final float win[][] = | ||
2365 | { | ||
2366 | { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f, | ||
2367 | -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f, | ||
2368 | -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f, | ||
2369 | -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f, | ||
2370 | -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f, | ||
2371 | -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f, | ||
2372 | -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f, | ||
2373 | -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f, | ||
2374 | -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f }, | ||
2375 | |||
2376 | { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f, | ||
2377 | -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f, | ||
2378 | -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f, | ||
2379 | -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f, | ||
2380 | -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f, | ||
2381 | -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f, | ||
2382 | -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f, | ||
2383 | -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2384 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f }, | ||
2385 | |||
2386 | { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f, | ||
2387 | -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f, | ||
2388 | -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f, | ||
2389 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2390 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2391 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2392 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2393 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2394 | 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f }, | ||
2395 | |||
2396 | { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, | ||
2397 | 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f, | ||
2398 | -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f, | ||
2399 | -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f, | ||
2400 | -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f, | ||
2401 | -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f, | ||
2402 | -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f, | ||
2403 | -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f, | ||
2404 | -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } | ||
2405 | }; | ||
2406 | /***************************************************************/ | ||
2407 | /* END OF INV_MDCT */ | ||
2408 | /***************************************************************/ | ||
2409 | |||
2410 | class Sftable | ||
2411 | { | ||
2412 | public int[] l; | ||
2413 | public int[] s; | ||
2414 | |||
2415 | public Sftable() | ||
2416 | { | ||
2417 | l = new int[5]; | ||
2418 | s = new int[3]; | ||
2419 | } | ||
2420 | |||
2421 | public Sftable(int[] thel, int[] thes) | ||
2422 | { | ||
2423 | l = thel; | ||
2424 | s = thes; | ||
2425 | } | ||
2426 | } | ||
2427 | |||
2428 | public Sftable sftable; | ||
2429 | |||
2430 | public static final int nr_of_sfb_block[][][] = | ||
2431 | {{{ 6, 5, 5, 5} , { 9, 9, 9, 9} , { 6, 9, 9, 9}}, | ||
2432 | {{ 6, 5, 7, 3} , { 9, 9,12, 6} , { 6, 9,12, 6}}, | ||
2433 | {{11,10, 0, 0} , {18,18, 0, 0} , {15,18, 0, 0}}, | ||
2434 | {{ 7, 7, 7, 0} , {12,12,12, 0} , { 6,15,12, 0}}, | ||
2435 | {{ 6, 6, 6, 3} , {12, 9, 9, 6} , { 6,12, 9, 6}}, | ||
2436 | {{ 8, 8, 5, 0} , {15,12, 9, 0} , { 6,18, 9, 0}}}; | ||
2437 | |||
2438 | |||
2439 | } | ||