+/*
+ * 11/19/04 1.0 moved to LGPL.
+ *
+ * 18/06/01 Michael Scheerer, Fixed bugs which causes
+ * negative indexes in method huffmann_decode and in method
+ * dequanisize_sample.
+ *
+ * 16/07/01 Michael Scheerer, Catched a bug in method
+ * huffmann_decode, which causes an outOfIndexException.
+ * Cause : Indexnumber of 24 at SfBandIndex,
+ * which has only a length of 22. I have simply and dirty
+ * fixed the index to <= 22, because I'm not really be able
+ * to fix the bug. The Indexnumber is taken from the MP3
+ * file and the origin Ma-Player with the same code works
+ * well.
+ *
+ * 02/19/99 Java Conversion by E.B, javalayer@javazoom.net
+ *-----------------------------------------------------------------------
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------
+ */
+
+/**
+ * Class Implementing Layer 3 Decoder.
+ *
+ * @since 0.0
+ */
+//
+// 4th line added for hybrid.
+// 5th added for stereo
+// 6th added for reorder method
+// 7th added for huffman_decode method
+// 8th added for get_LSF_scale_data
+// 9th added for get_LSF_scale_factors
+// 10th added for get_scale_factors
+// llth added for decode
+//
+
+
+final class LayerIIIDecoder implements FrameDecoder {
+ static final double d43 = (4.0 / 3.0);
+
+ public int[] scalefac_buffer;
+
+ // MDM: removed, as this wasn't being used.
+ // private float CheckSumOut1d = 0.0f;
+
+ private int CheckSumHuff = 0;
+
+ private int[] is_1d;
+
+ private float[][][] ro;
+
+ private float[][][] lr;
+
+ private float[] inter; // 576 samples
+
+ private float[] out_1d; // 576 samples
+
+ private float[][] prevblck;
+
+
+ private float[][] k;
+
+ private int[] nonzero;
+
+ private SynthesisFilter filter1;
+
+ private SynthesisFilter filter2;
+ //
+ // private Obuffer buffer; // output buffer
+
+ private int which_channels;
+
+ private BitReserve br;
+
+ private III_side_info_t si;
+
+ // private temporaire2[] III_scalefac_t;
+
+ private final temporaire2[] scalefac;
+ // private III_scalefac_t scalefac;
+
+
+ private int max_gr;
+
+ private int frame_start;
+ // private int part2_start;
+
+ private final int channels;
+
+ private int first_channel;
+
+ private int last_channel;
+
+ private int sfreq;
+
+
+ private int part2_start;
+
+
+ private boolean initialized = false;
+
+
+ float[][] raw_full; // 18 left shfited since it will be copied into prevblck!
+
+ // constructor for the linear type system
+ public LayerIIIDecoder(Header h, @DELEGATE SynthesisFilter filtera,
+ @DELEGATE SynthesisFilter filterb, int which_ch0) {
+
+ filter_pos = 11;
+ raw_full = new float[2][SBLIMIT * SSLIMIT];
+
+ filter1 = filtera;
+ filter2 = filterb;
+
+ huffcodetab.inithuff();
+ is_1d = new int[SBLIMIT * SSLIMIT + 4];
+ ro = new float[2][SBLIMIT][SSLIMIT];
+ lr = new float[2][SBLIMIT][SSLIMIT];
+ out_1d = new float[SBLIMIT * SSLIMIT];
+ inter = new float[SBLIMIT * SSLIMIT];
+ prevblck = new float[2][SBLIMIT * SSLIMIT];
+ k = new float[2][SBLIMIT * SSLIMIT];
+ nonzero = new int[2];
+
+ // removes unnecessary aliases
+ // III_scalefact_t
+ // III_scalefac_t = new temporaire2[2];
+ // III_scalefac_t[0] = new temporaire2();
+ // III_scalefac_t[1] = new temporaire2();
+ // scalefac = III_scalefac_t;
+
+ scalefac = new temporaire2[2];
+ scalefac[0] = new temporaire2();
+ scalefac[1] = new temporaire2();
+
+ // L3TABLE INIT
+
+ sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
+ 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 };
+ int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192 };
+ 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 };
+ int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192 };
+ 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 };
+ int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
+
+ 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 };
+ int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192 };
+ 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 };
+ int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192 };
+ 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 };
+ int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192 };
+ // SZD: MPEG2.5
+ 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 };
+ int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
+ 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 };
+ int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 };
+ 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 };
+ int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 };
+
+ sfBandIndex[0] = new SBI(l0, s0);
+ sfBandIndex[1] = new SBI(l1, s1);
+ sfBandIndex[2] = new SBI(l2, s2);
+
+ sfBandIndex[3] = new SBI(l3, s3);
+ sfBandIndex[4] = new SBI(l4, s4);
+ sfBandIndex[5] = new SBI(l5, s5);
+ // SZD: MPEG2.5
+ sfBandIndex[6] = new SBI(l6, s6);
+ sfBandIndex[7] = new SBI(l7, s7);
+ sfBandIndex[8] = new SBI(l8, s8);
+ // END OF L3TABLE INIT
+
+ if (reorder_table == null) { // SZD: generate LUT
+ reorder_table = new int[9][];
+ for ( int i = 0; i < 9; i++)
+ reorder_table[i] = reorder(sfBandIndex[i].s);
+ }
+
+ // scalefac_buffer
+ scalefac_buffer = new int[54];
+ // END OF scalefac_buffer
+
+ init(h);
+ }
+
+
+ private void init( Header header) {
+
+ frame_start = 0;
+ channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
+ max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
+
+ sfreq =
+ header.sample_frequency()
+ + ((header.version() == Header.MPEG1) ? 3 : (header.version() == Header.MPEG25_LSF) ? 6
+ : 0); // SZD
+
+ if (channels == 2) {
+ switch (which_channels) {
+ case OutputChannels.LEFT_CHANNEL:
+ case OutputChannels.DOWNMIX_CHANNELS:
+ first_channel = last_channel = 0;
+ break;
+
+ case OutputChannels.RIGHT_CHANNEL:
+ first_channel = last_channel = 1;
+ break;
+
+ case OutputChannels.BOTH_CHANNELS:
+ default:
+ first_channel = 0;
+ last_channel = 1;
+ break;
+ }
+ } else {
+ first_channel = last_channel = 0;
+ }
+
+ for ( int ch = 0; ch < 2; ch++)
+ for ( int j = 0; j < 576; j++)
+ prevblck[ch][j] = 0.0f;
+
+ nonzero[0] = nonzero[1] = 576;
+
+ si = new III_side_info_t();
+
+ initialized = true;
+
+ }
+
+ /**
+ * Constructor.
+ */
+ // REVIEW: these constructor arguments should be moved to the
+ // decodeFrame() method, where possible, so that one
+ //
+ // public LayerIIIDecoder( Header header0,
+ // SynthesisFilter filtera,
+ // SynthesisFilter filterb, int which_ch0) {
+ //
+ // huffcodetab.inithuff();
+ // is_1d = new int[SBLIMIT * SSLIMIT + 4];
+ // ro = new float[2][SBLIMIT][SSLIMIT];
+ // lr = new float[2][SBLIMIT][SSLIMIT];
+ // out_1d = new float[SBLIMIT * SSLIMIT];
+ // prevblck = new float[2][SBLIMIT * SSLIMIT];
+ // k = new float[2][SBLIMIT * SSLIMIT];
+ // nonzero = new int[2];
+ //
+ // // removes unnecessary aliases
+ // // III_scalefact_t
+ // // III_scalefac_t = new temporaire2[2];
+ // // III_scalefac_t[0] = new temporaire2();
+ // // III_scalefac_t[1] = new temporaire2();
+ // // scalefac = III_scalefac_t;
+ //
+ // scalefac = new temporaire2[2];
+ // scalefac[0] = new temporaire2();
+ // scalefac[1] = new temporaire2();
+ //
+ // // L3TABLE INIT
+ //
+ // sfBandIndex = new SBI[9]; // SZD: MPEG2.5 +3 indices
+ // 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 };
+ // int[] s0 = { 0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132,
+ // 174, 192 };
+ // 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 };
+ // int[] s1 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136,
+ // 180, 192 };
+ // 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 };
+ // int[] s2 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
+ // 174, 192 };
+ //
+ // 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 };
+ // int[] s3 = { 0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136,
+ // 192 };
+ // 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 };
+ // int[] s4 = { 0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126,
+ // 192 };
+ // 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 };
+ // int[] s5 = { 0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138,
+ // 180, 192 };
+ // // SZD: MPEG2.5
+ // 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 };
+ // int[] s6 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
+ // 174, 192 };
+ // 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 };
+ // int[] s7 = { 0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134,
+ // 174, 192 };
+ // 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 };
+ // int[] s8 = { 0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164,
+ // 166, 192 };
+ //
+ // sfBandIndex[0] = new SBI(l0, s0);
+ // sfBandIndex[1] = new SBI(l1, s1);
+ // sfBandIndex[2] = new SBI(l2, s2);
+ //
+ // sfBandIndex[3] = new SBI(l3, s3);
+ // sfBandIndex[4] = new SBI(l4, s4);
+ // sfBandIndex[5] = new SBI(l5, s5);
+ // // SZD: MPEG2.5
+ // sfBandIndex[6] = new SBI(l6, s6);
+ // sfBandIndex[7] = new SBI(l7, s7);
+ // sfBandIndex[8] = new SBI(l8, s8);
+ // // END OF L3TABLE INIT
+ //
+ // if (reorder_table == null) { // SZD: generate LUT
+ // reorder_table = new int[9][];
+ // for ( int i = 0; i < 9; i++)
+ // reorder_table[i] = reorder(sfBandIndex[i].s);
+ // }
+ //
+ // // Sftable
+ // int[] ll0 = { 0, 6, 11, 16, 21 };
+ // int[] ss0 = { 0, 6, 12 };
+ // sftable = new Sftable(ll0, ss0);
+ // // END OF Sftable
+ //
+ // // scalefac_buffer
+ // scalefac_buffer = new int[54];
+ // // END OF scalefac_buffer
+ //
+ // // header = header0;
+ // filter1 = filtera;
+ // filter2 = filterb;
+ // // buffer = buffer0;
+ // which_channels = which_ch0;
+ //
+ // frame_start = 0;
+ // channels = (header.mode() == Header.SINGLE_CHANNEL) ? 1 : 2;
+ // max_gr = (header.version() == Header.MPEG1) ? 2 : 1;
+ //
+ // sfreq =
+ // header.sample_frequency()
+ // + ((header.version() == Header.MPEG1) ? 3 : (header.version() ==
+ // Header.MPEG25_LSF) ? 6
+ // : 0); // SZD
+ //
+ // if (channels == 2) {
+ // switch (which_channels) {
+ // case OutputChannels.LEFT_CHANNEL:
+ // case OutputChannels.DOWNMIX_CHANNELS:
+ // first_channel = last_channel = 0;
+ // break;
+ //
+ // case OutputChannels.RIGHT_CHANNEL:
+ // first_channel = last_channel = 1;
+ // break;
+ //
+ // case OutputChannels.BOTH_CHANNELS:
+ // default:
+ // first_channel = 0;
+ // last_channel = 1;
+ // break;
+ // }
+ // } else {
+ // first_channel = last_channel = 0;
+ // }
+ //
+ // for ( int ch = 0; ch < 2; ch++)
+ // for ( int j = 0; j < 576; j++)
+ // prevblck[ch][j] = 0.0f;
+ //
+ // nonzero[0] = nonzero[1] = 576;
+ //
+ // br = new BitReserve();
+ // si = new III_side_info_t();
+ // }
+
+ /**
+ * Notify decoder that a seek is being made.
+ */
+
+ public void seek_notify() {
+ frame_start = 0;
+ for ( int ch = 0; ch < 2; ch++)
+ for ( int j = 0; j < 576; j++)
+ prevblck[ch][j] = 0.0f;
+ br = new BitReserve();
+ }
+
+ public void decodeFrame( Header header) {
+ decode(header);
+ }
+
+ /**
+ * Decode one frame, filling the buffer with the output samples.
+ */
+
+ // subband samples are buffered and passed to the
+ // SynthesisFilter in one go.
+
+ private float[] samples1 = new float[32];
+
+ private float[] samples2 = new float[32];
+
+ private int filter_pos;
+
+ /*
+ * location hierarchy of decode() {header} {stream} {si} {br, flush_main,
+ * main_data_end,frame_start,nSlots,bytes_to_discard}* {gr,max_gr} // granule
+ * {ch,channels,first_channel, last_channel, which_channels} // channel
+ * {part2_start} {sb18, ss} {out_1d}* {sb}* {samples1,sample2}
+ * {filter1,filter2}
+ */
+ //
+
+ public void decode( Header header) {
+
+ // if (!initialized) {
+ // init(header);
+ // }
+
+ // overwrites once per a loop
+ SSJAVA.arrayinit(samples1, 0);
+ SSJAVA.arrayinit(samples2, 0);
+ SSJAVA.arrayinit(ro, 2, SBLIMIT, SSLIMIT, 0);
+ SSJAVA.arrayinit(lr, 2, SBLIMIT, SSLIMIT, 0);
+ SSJAVA.arrayinit(is_pos, 7);
+ SSJAVA.arrayinit(is_ratio, 0);
+ SSJAVA.arrayinit(out_1d, 0);
+ SSJAVA.arrayinit(inter, 0);
+ SSJAVA.arrayinit(k, 2, SBLIMIT * SSLIMIT, 0);
+ SSJAVA.arrayinit(is_1d, 0);
+ SSJAVA.arrayinit(tsOutCopy, 0);
+ SSJAVA.arrayinit(scalefac_buffer, 0);
+ SSJAVA.arrayinit(nonzero, 576);
+ SSJAVA.arrayinit(new_slen, 0);
+
+ SSJAVA.arrayinit(raw_full, 2, SBLIMIT * SSLIMIT, 0);
+ SSJAVA.arrayinit(rawout, 0);
+ CheckSumHuff = 0;
+ // prevblck = new float[2][SBLIMIT * SSLIMIT];
+ si = new III_side_info_t();
+ //
+
+ int nSlots = header.slots();
+
+ int gr;
+ int ch;
+
+ int ss;
+ int sb;
+ int sb18;
+
+ int main_data_end;
+ int flush_main;
+
+ int bytes_to_discard;
+ int i;
+
+ // modifications for linear type
+ get_side_info(header);
+ br = header.getBitReserve();
+
+ int version = header.version();
+
+ // additional codes for the definitely written property
+ filter_pos = (header.getIdx() * 4) & 0xf;
+ filter1.vidx = 1;
+ filter2.vidx = 1;
+ filter1.actual_write_pos = filter_pos;
+ filter2.actual_write_pos = filter_pos;
+
+ // here 'gr' and 'max_gr' should be higher than 'ch','channels', and more
+ for (gr = 0; gr < max_gr; gr++) { // two granules per channel
+ // in the loop body, access set={part2_start}
+
+ // 'ch', 'channels' should be higher than all locs in the below body
+ for (ch = 0; ch < channels; ch++) {
+ // part2_start = br.hsstell();
+ int part2_start_local = br.hsstell();
+
+ // grab scale factors from the main data.
+ // following the scale factors is the actual compressed data
+ if (version == Header.MPEG1)
+ get_scale_factors(header, ch, gr); // no need to care from this side
+ // here move scale factor data from 'br' buffer to 'scalefac' field
+ else
+ // MPEG-2 LSF, SZD: MPEG-2.5 LSF
+ get_LSF_scale_factors(header, ch, gr); // no need to care from this
+ // side
+
+ // here, decoding the compressed audio data
+ huffman_decode(part2_start_local, ch, gr); // no need to care from this
+ // side
+ // System.out.println("CheckSum HuffMan = " + CheckSumHuff);
+ dequantize_sample(/* ro[ch], */ch, gr); // no need to care from this
+ // side
+ }
+
+ stereo(header, gr); // no need to care from this side
+
+ if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) {
+ do_downmix();
+ }
+
+ for (ch = first_channel; ch <= last_channel; ch++) { // 'ch' and
+ // 'first_channel' >
+ // the body
+
+ reorder(/* lr[ch], */ch, gr);
+ antialias(ch, gr);
+
+ // float CheckSumOut1d=0;
+ // for (int hb = 0;hb<576;hb++) {
+ // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
+ // }
+ // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
+
+ for ( int index = 0; index < 576; index++) {
+ out_1d[index] = inter[index];
+ }
+
+ hybrid(ch, gr);
+
+ // float CheckSumOut1d=0;
+ // for (int hb = 0;hb<576;hb++) {
+ // CheckSumOut1d = CheckSumOut1d + out_1d[hb];
+ // }
+ // System.out.println("CheckSumOut1d = "+CheckSumOut1d);
+
+ for (sb18 = 18; sb18 < 576; sb18 += 36) {
+ // sb18 > ss, SSLIMIT, out1d
+ // Frequency inversion
+ for (ss = 1; ss < SSLIMIT; ss += 2) {
+ // 'ss','SSLIMIT' > out_1d
+ out_1d[sb18 + ss] = -out_1d[sb18 + ss]; // out1d*
+ }
+ }
+
+ // 'ch', 'which_channels' should be higher than if/else body!
+ // location set written by if/else body
+ // = {samples1, samples2, filter1, filter2}
+ if ((ch == 0) || (which_channels == OutputChannels.RIGHT_CHANNEL)) {
+ for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
+ sb = 0;
+ for (sb18 = 0; sb18 < 576; sb18 += 18) {
+ samples1[sb] = out_1d[sb18 + ss]; // out_1d > samples1
+ // filter1.input_sample(out_1d[sb18+ss], sb);
+ sb++; // sb should be loc*
+ }
+ filter1.input_samples(samples1);
+ // System.out.println("filter1 writepos=" + filter1.actual_write_pos
+ // + " vidx=" + filter1.vidx);
+ filter1.calculate_pcm_samples();
+ }
+ } else {
+ for (ss = 0; ss < SSLIMIT; ss++) { // Polyphase synthesis
+ sb = 0;
+ for (sb18 = 0; sb18 < 576; sb18 += 18) {
+ samples2[sb] = out_1d[sb18 + ss]; // out_1d > samples2
+ // filter2.input_sample(out_1d[sb18+ss], sb);
+ sb++;
+ }
+ filter2.input_samples(samples2);
+ filter2.calculate_pcm_samples();
+ }
+ }
+ // System.out.println("#END CH=" + ch + " actual_write_pos=" +
+ // filter1.actual_write_pos);
+ } // channels
+
+ // TODO
+ if (gr < max_gr - 1) {
+ // init prev
+ SSJAVA.arrayinit(prevblck, 2, SBLIMIT * SSLIMIT, 0);
+ // copy from raw_full to prev
+ SSJAVA.arraycopy(prevblck, raw_full, 2, SBLIMIT * SSLIMIT);
+ }
+ // for (int chidx = 0; chidx < 2; chidx++) {
+ // for (int sidx = 0; sidx < SBLIMIT * SSLIMIT; sidx++) {
+ // prevblck[chidx][sidx] = raw_full[chidx][sidx];
+ // }
+ // }
+ // System.out.println("#END GR=" + gr + " actual_write_pos=" +
+ // filter1.actual_write_pos);
+ } // granule
+
+ // TODO
+ // init prev
+ SSJAVA.arrayinit(prevblck, 2, SBLIMIT * SSLIMIT, 0);
+ // copy from raw_full to prev
+ SSJAVA.arraycopy(prevblck, raw_full, 2, SBLIMIT * SSLIMIT);
+
+ // System.out.println("#END FRAME actual_write_pos=" +
+ // filter1.actual_write_pos);
+
+ filter1.clear();
+ filter2.clear();
+
+ // System.out.println("Counter = ................................."+counter);
+ // if (counter < 609)
+ // {
+ // counter++; // count should be loc*
+ // buffer.write_buffer(1); // buffer!!!
+ // }
+ // else if (counter == 609)
+ // {
+ // buffer.close();
+ // counter++;
+ // }
+ // else
+ // {
+ // }
+
+ }
+
+ /**
+ * Reads the side info from the stream, assuming the entire. frame has been
+ * read already. Mono : 136 bits (= 17 bytes) Stereo : 256 bits (= 32 bytes)
+ */
+
+ private boolean get_side_info( Header header) {
+
+ SideInfoBuffer sib =
+ header.getSideInfoBuffer();
+ int version = header.version();
+
+ int ch;
+ int gr;
+ // System.out.println("#get_side_info");
+ if (version == Header.MPEG1) {
+
+ si.main_data_begin = sib.get_bits(9);
+ if (channels == 1)
+ si.private_bits = sib.get_bits(5);
+ else
+ si.private_bits = sib.get_bits(3);
+
+ for (ch = 0; ch < channels; ch++) {
+ si.ch[ch].scfsi[0] = sib.get_bits(1);
+ si.ch[ch].scfsi[1] = sib.get_bits(1);
+ si.ch[ch].scfsi[2] = sib.get_bits(1);
+ si.ch[ch].scfsi[3] = sib.get_bits(1);
+ }
+
+ // System.out.println("BEFORE GR,CH");
+
+ for (gr = 0; gr < 2; gr++) {
+ // System.out.println("GR=" + gr);
+ for (ch = 0; ch < channels; ch++) {
+ // System.out.println("CH");
+ si.ch[ch].gr[gr].part2_3_length = sib.get_bits(12);
+ si.ch[ch].gr[gr].big_values = sib.get_bits(9);
+ si.ch[ch].gr[gr].global_gain = sib.get_bits(8);
+ si.ch[ch].gr[gr].scalefac_compress = sib.get_bits(4);
+ int cond = sib.get_bits(1);
+ // si.ch[ch].gr[gr].window_switching_flag = sib.get_bits(1);
+ // if ((si.ch[ch].gr[gr].window_switching_flag) != 0) {
+ if (cond != 0) {
+ si.ch[ch].gr[gr].block_type = sib.get_bits(2);
+ si.ch[ch].gr[gr].mixed_block_flag = sib.get_bits(1);
+
+ si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
+ si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
+
+ si.ch[ch].gr[gr].subblock_gain[0] = sib.get_bits(3);
+ si.ch[ch].gr[gr].subblock_gain[1] = sib.get_bits(3);
+ si.ch[ch].gr[gr].subblock_gain[2] = sib.get_bits(3);
+
+ // Set region_count parameters since they are implicit
+ // in this case.
+
+ if (si.ch[ch].gr[gr].block_type == 0) {
+ // Side info bad: block_type == 0 in split block
+ return false;
+ } else if (si.ch[ch].gr[gr].block_type == 2 && si.ch[ch].gr[gr].mixed_block_flag == 0) {
+ si.ch[ch].gr[gr].region0_count = 8;
+ } else {
+ si.ch[ch].gr[gr].region0_count = 7;
+ }
+ si.ch[ch].gr[gr].region1_count = 20 - si.ch[ch].gr[gr].region0_count;
+ } else {
+ si.ch[ch].gr[gr].table_select[0] = sib.get_bits(5);
+ si.ch[ch].gr[gr].table_select[1] = sib.get_bits(5);
+ si.ch[ch].gr[gr].table_select[2] = sib.get_bits(5);
+ si.ch[ch].gr[gr].region0_count = sib.get_bits(4);
+ si.ch[ch].gr[gr].region1_count = sib.get_bits(3);
+ si.ch[ch].gr[gr].block_type = 0;
+ }
+ //
+ si.ch[ch].gr[gr].window_switching_flag = cond;
+ //
+ si.ch[ch].gr[gr].preflag = sib.get_bits(1);
+ si.ch[ch].gr[gr].scalefac_scale = sib.get_bits(1);
+ si.ch[ch].gr[gr].count1table_select = sib.get_bits(1);
+ }
+ }
+
+ } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF
+
+ si.main_data_begin = sib.get_bits(8);
+ if (channels == 1)
+ si.private_bits = sib.get_bits(1);
+ else
+ si.private_bits = sib.get_bits(2);
+
+ for (ch = 0; ch < channels; ch++) {
+
+ si.ch[ch].gr[0].part2_3_length = sib.get_bits(12);
+ si.ch[ch].gr[0].big_values = sib.get_bits(9);
+ si.ch[ch].gr[0].global_gain = sib.get_bits(8);
+ si.ch[ch].gr[0].scalefac_compress = sib.get_bits(9);
+
+ int cond = sib.get_bits(1);
+ // si.ch[ch].gr[0].window_switching_flag = sib.get_bits(1);
+ // if ((si.ch[ch].gr[0].window_switching_flag) != 0) {
+ if (cond != 0) {
+
+ si.ch[ch].gr[0].block_type = sib.get_bits(2);
+ si.ch[ch].gr[0].mixed_block_flag = sib.get_bits(1);
+ si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
+ si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
+
+ si.ch[ch].gr[0].subblock_gain[0] = sib.get_bits(3);
+ si.ch[ch].gr[0].subblock_gain[1] = sib.get_bits(3);
+ si.ch[ch].gr[0].subblock_gain[2] = sib.get_bits(3);
+
+ // Set region_count parameters since they are implicit in
+ // this case.
+
+ if (si.ch[ch].gr[0].block_type == 0) {
+ // Side info bad: block_type == 0 in split block
+ return false;
+ } else if (si.ch[ch].gr[0].block_type == 2 && si.ch[ch].gr[0].mixed_block_flag == 0) {
+ si.ch[ch].gr[0].region0_count = 8;
+ } else {
+ si.ch[ch].gr[0].region0_count = 7;
+ si.ch[ch].gr[0].region1_count = 20 - si.ch[ch].gr[0].region0_count;
+ }
+
+ } else {
+ si.ch[ch].gr[0].table_select[0] = sib.get_bits(5);
+ si.ch[ch].gr[0].table_select[1] = sib.get_bits(5);
+ si.ch[ch].gr[0].table_select[2] = sib.get_bits(5);
+ si.ch[ch].gr[0].region0_count = sib.get_bits(4);
+ si.ch[ch].gr[0].region1_count = sib.get_bits(3);
+ si.ch[ch].gr[0].block_type = 0;
+ }
+ //
+ si.ch[ch].gr[gr].window_switching_flag = cond;
+ //
+
+ si.ch[ch].gr[0].scalefac_scale = sib.get_bits(1);
+ si.ch[ch].gr[0].count1table_select = sib.get_bits(1);
+ } // for(ch=0; ch<channels; ch++)
+ } // if (header.version() == MPEG1)
+ return true;
+ }
+
+ /**
+ *
+ */
+
+ private void get_scale_factors( Header header,
+ int ch, int gr) {
+
+ // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias
+
+ int sfb;
+ int window;
+ int scale_comp = si.ch[ch].gr[gr].scalefac_compress;
+ int length0 = slen[0][scale_comp];
+ int length1 = slen[1][scale_comp];
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+ if ((si.ch[ch].gr[gr].mixed_block_flag) != 0) { // MIXED
+ for (sfb = 0; sfb < 8; sfb++)
+ scalefac[ch].l[sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
+ for (sfb = 3; sfb < 6; sfb++)
+ for (window = 0; window < 3; window++)
+ scalefac[ch].s[window][sfb] = br.hgetbits(slen[0][si.ch[ch].gr[gr].scalefac_compress]);
+ for (sfb = 6; sfb < 12; sfb++)
+ for (window = 0; window < 3; window++)
+ scalefac[ch].s[window][sfb] = br.hgetbits(slen[1][si.ch[ch].gr[gr].scalefac_compress]);
+ for (sfb = 12, window = 0; window < 3; window++)
+ scalefac[ch].s[window][sfb] = 0;
+
+ } else { // SHORT
+
+ scalefac[ch].s[0][0] = br.hgetbits(length0);
+ scalefac[ch].s[1][0] = br.hgetbits(length0);
+ scalefac[ch].s[2][0] = br.hgetbits(length0);
+ scalefac[ch].s[0][1] = br.hgetbits(length0);
+ scalefac[ch].s[1][1] = br.hgetbits(length0);
+ scalefac[ch].s[2][1] = br.hgetbits(length0);
+ scalefac[ch].s[0][2] = br.hgetbits(length0);
+ scalefac[ch].s[1][2] = br.hgetbits(length0);
+ scalefac[ch].s[2][2] = br.hgetbits(length0);
+ scalefac[ch].s[0][3] = br.hgetbits(length0);
+ scalefac[ch].s[1][3] = br.hgetbits(length0);
+ scalefac[ch].s[2][3] = br.hgetbits(length0);
+ scalefac[ch].s[0][4] = br.hgetbits(length0);
+ scalefac[ch].s[1][4] = br.hgetbits(length0);
+ scalefac[ch].s[2][4] = br.hgetbits(length0);
+ scalefac[ch].s[0][5] = br.hgetbits(length0);
+ scalefac[ch].s[1][5] = br.hgetbits(length0);
+ scalefac[ch].s[2][5] = br.hgetbits(length0);
+ scalefac[ch].s[0][6] = br.hgetbits(length1);
+ scalefac[ch].s[1][6] = br.hgetbits(length1);
+ scalefac[ch].s[2][6] = br.hgetbits(length1);
+ scalefac[ch].s[0][7] = br.hgetbits(length1);
+ scalefac[ch].s[1][7] = br.hgetbits(length1);
+ scalefac[ch].s[2][7] = br.hgetbits(length1);
+ scalefac[ch].s[0][8] = br.hgetbits(length1);
+ scalefac[ch].s[1][8] = br.hgetbits(length1);
+ scalefac[ch].s[2][8] = br.hgetbits(length1);
+ scalefac[ch].s[0][9] = br.hgetbits(length1);
+ scalefac[ch].s[1][9] = br.hgetbits(length1);
+ scalefac[ch].s[2][9] = br.hgetbits(length1);
+ scalefac[ch].s[0][10] = br.hgetbits(length1);
+ scalefac[ch].s[1][10] = br.hgetbits(length1);
+ scalefac[ch].s[2][10] = br.hgetbits(length1);
+ scalefac[ch].s[0][11] = br.hgetbits(length1);
+ scalefac[ch].s[1][11] = br.hgetbits(length1);
+ scalefac[ch].s[2][11] = br.hgetbits(length1);
+ scalefac[ch].s[0][12] = 0;
+ scalefac[ch].s[1][12] = 0;
+ scalefac[ch].s[2][12] = 0;
+ } // SHORT
+
+ } else { // LONG types 0,1,3
+
+ if ((si.ch[ch].scfsi[0] == 0) || (gr == 0)) {
+ scalefac[ch].l[0] = br.hgetbits(length0);
+ scalefac[ch].l[1] = br.hgetbits(length0);
+ scalefac[ch].l[2] = br.hgetbits(length0);
+ scalefac[ch].l[3] = br.hgetbits(length0);
+ scalefac[ch].l[4] = br.hgetbits(length0);
+ scalefac[ch].l[5] = br.hgetbits(length0);
+ }
+ if ((si.ch[ch].scfsi[1] == 0) || (gr == 0)) {
+ scalefac[ch].l[6] = br.hgetbits(length0);
+ scalefac[ch].l[7] = br.hgetbits(length0);
+ scalefac[ch].l[8] = br.hgetbits(length0);
+ scalefac[ch].l[9] = br.hgetbits(length0);
+ scalefac[ch].l[10] = br.hgetbits(length0);
+ }
+ if ((si.ch[ch].scfsi[2] == 0) || (gr == 0)) {
+ scalefac[ch].l[11] = br.hgetbits(length1);
+ scalefac[ch].l[12] = br.hgetbits(length1);
+ scalefac[ch].l[13] = br.hgetbits(length1);
+ scalefac[ch].l[14] = br.hgetbits(length1);
+ scalefac[ch].l[15] = br.hgetbits(length1);
+ }
+ if ((si.ch[ch].scfsi[3] == 0) || (gr == 0)) {
+ scalefac[ch].l[16] = br.hgetbits(length1);
+ scalefac[ch].l[17] = br.hgetbits(length1);
+ scalefac[ch].l[18] = br.hgetbits(length1);
+ scalefac[ch].l[19] = br.hgetbits(length1);
+ scalefac[ch].l[20] = br.hgetbits(length1);
+ }
+
+ scalefac[ch].l[21] = 0;
+ scalefac[ch].l[22] = 0;
+ }
+ }
+
+ /**
+ *
+ */
+ // MDM: new_slen is fully initialized before use, no need
+ // to reallocate array.
+
+ private int[] new_slen = new int[4];
+
+ // ssjava
+
+ private void get_LSF_scale_data( Header header,
+ int ch, int gr) {
+
+ int mode_ext = header.mode_extension();
+ // gr_info_s gr_info =
+ // (si.ch[ch].gr[gr]); // remove alias
+
+ int scalefac_comp =
+ si.ch[ch].gr[gr].scalefac_compress;
+ int blocktypenumber;
+
+ int int_scalefac_comp;
+ int m;
+ int blocknumber =
+ 0;
+
+ if (si.ch[ch].gr[gr].block_type == 2) {
+ if (si.ch[ch].gr[gr].mixed_block_flag == 0) {
+ blocktypenumber = 1;
+ } else if (si.ch[ch].gr[gr].mixed_block_flag == 1) {
+ blocktypenumber = 2;
+ } else {
+ blocktypenumber = 0;
+ }
+ } else {
+ blocktypenumber = 0;
+ }
+
+ if (!(((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
+
+ if (scalefac_comp < 400) {
+
+ new_slen[0] = (scalefac_comp >>> 4) / 5;
+ new_slen[1] = (scalefac_comp >>> 4) % 5;
+ new_slen[2] = (scalefac_comp & 0xF) >>> 2;
+ new_slen[3] = (scalefac_comp & 3);
+ si.ch[ch].gr[gr].preflag = 0;
+ blocknumber = 0;
+
+ } else if (scalefac_comp < 500) {
+
+ new_slen[0] = ((scalefac_comp - 400) >>> 2) / 5;
+ new_slen[1] = ((scalefac_comp - 400) >>> 2) % 5;
+ new_slen[2] = (scalefac_comp - 400) & 3;
+ new_slen[3] = 0;
+ si.ch[ch].gr[gr].preflag = 0;
+ blocknumber = 1;
+
+ } else if (scalefac_comp < 512) {
+
+ new_slen[0] = (scalefac_comp - 500) / 3;
+ new_slen[1] = (scalefac_comp - 500) % 3;
+ new_slen[2] = 0;
+ new_slen[3] = 0;
+ si.ch[ch].gr[gr].preflag = 1;
+ blocknumber = 2;
+ }
+ }
+
+ if ((((mode_ext == 1) || (mode_ext == 3)) && (ch == 1))) {
+ int_scalefac_comp = scalefac_comp >>> 1;
+
+ if (int_scalefac_comp < 180) {
+ new_slen[0] = int_scalefac_comp / 36;
+ new_slen[1] = (int_scalefac_comp % 36) / 6;
+ new_slen[2] = (int_scalefac_comp % 36) % 6;
+ new_slen[3] = 0;
+ si.ch[ch].gr[gr].preflag = 0;
+ blocknumber = 3;
+ } else if (int_scalefac_comp < 244) {
+ new_slen[0] = ((int_scalefac_comp - 180) & 0x3F) >>> 4;
+ new_slen[1] = ((int_scalefac_comp - 180) & 0xF) >>> 2;
+ new_slen[2] = (int_scalefac_comp - 180) & 3;
+ new_slen[3] = 0;
+ si.ch[ch].gr[gr].preflag = 0;
+ blocknumber = 4;
+ } else if (int_scalefac_comp < 255) {
+ new_slen[0] = (int_scalefac_comp - 244) / 3;
+ new_slen[1] = (int_scalefac_comp - 244) % 3;
+ new_slen[2] = 0;
+ new_slen[3] = 0;
+ si.ch[ch].gr[gr].preflag = 0;
+ blocknumber = 5;
+ }
+ }
+
+ // for ( int x = 0; x < 45; x++)
+ // // why 45, not 54?
+ // scalefac_buffer[x] = 0;
+
+ m = 0;
+ for ( int i = 0; i < 4; i++) {
+ int jmax = nr_of_sfb_block[blocknumber][blocktypenumber][i];
+ for ( int j = 0; j < jmax; j++) {
+ scalefac_buffer[m] = (new_slen[i] == 0) ? 0 : br.hgetbits(new_slen[i]);
+ m++;
+
+ } // for (unint32 j ...
+ } // for (uint32 i ...
+ }
+
+ /**
+ *
+ */
+
+ private void get_LSF_scale_factors( Header header,
+ int ch, int gr) {
+
+ int sfb;
+ int m = 0;
+ int window;
+ // gr_info_s gr_info = (si.ch[ch].gr[gr]); // remove alias
+
+ get_LSF_scale_data(header, ch, gr);
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+ if (si.ch[ch].gr[gr].mixed_block_flag != 0) { // MIXED
+ for (sfb = 0; sfb < 8; sfb++) {
+ scalefac[ch].l[sfb] = scalefac_buffer[m];
+ m++;
+ }
+ for (sfb = 3; sfb < 12; sfb++) {
+ for (window = 0; window < 3; window++) {
+ scalefac[ch].s[window][sfb] = scalefac_buffer[m];
+ m++;
+ }
+ }
+ for (window = 0; window < 3; window++)
+ scalefac[ch].s[window][12] = 0;
+
+ } else { // SHORT
+
+ for (sfb = 0; sfb < 12; sfb++) {
+ for (window = 0; window < 3; window++) {
+ scalefac[ch].s[window][sfb] = scalefac_buffer[m];
+ m++;
+ }
+ }
+
+ for (window = 0; window < 3; window++)
+ scalefac[ch].s[window][12] = 0;
+ }
+ } else { // LONG types 0,1,3
+
+ for (sfb = 0; sfb < 21; sfb++) {
+ scalefac[ch].l[sfb] = scalefac_buffer[m];
+ m++;
+ }
+ scalefac[ch].l[21] = 0; // Jeff
+ scalefac[ch].l[22] = 0;
+ }
+ }
+
+ /**
+ *
+ */
+ //
+ // int[] x = { 0 };
+ //
+ // int[] y = { 0 };
+ //
+ // int[] v = { 0 };
+ //
+ // int[] w = { 0 };
+ //
+ // int x[] = { 0 };
+ //
+ // int y[] = { 0 };
+ //
+ // int v[] = { 0 };
+ //
+ // int w[] = { 0 };
+
+
+ private void huffman_decode( int part2_start_local,
+ int ch, int gr) {
+
+ int x[] = new int[1];
+ int y[] = new int[1];
+ int v[] = new int[1];
+ int w[] = new int[1];
+
+ int part2_3_end =
+ part2_start_local + si.ch[ch].gr[gr].part2_3_length;
+ int num_bits;
+ int region1Start;
+ int region2Start;
+ int index;
+
+ int buf;
+ int buf1;
+
+ // Find region boundary for short block case
+
+ if (((si.ch[ch].gr[gr].window_switching_flag) != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+
+ // Region2.
+ // MS: Extrahandling for 8KHZ
+ region1Start = (sfreq == 8) ? 72 : 36; // sfb[9/3]*3=36 or in case
+ // 8KHZ = 72
+ region2Start = 576; // No Region2 for short block case
+
+ } else { // Find region boundary for long block case
+
+ buf = si.ch[ch].gr[gr].region0_count + 1;
+ buf1 = buf + si.ch[ch].gr[gr].region1_count + 1;
+
+ if (buf1 > sfBandIndex[sfreq].l.length - 1)
+ buf1 = sfBandIndex[sfreq].l.length - 1;
+
+ region1Start = sfBandIndex[sfreq].l[buf];
+ region2Start = sfBandIndex[sfreq].l[buf1]; /* MI */
+ }
+
+ index = 0;
+ // Read bigvalues area
+ TERMINATE: for ( int i = 0; i < (si.ch[ch].gr[gr].big_values << 1); i +=
+ 2) {
+
+ int htIdx;
+ if (i < region1Start) {
+ htIdx = si.ch[ch].gr[gr].table_select[0];
+ // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]];
+ } else if (i < region2Start) {
+ htIdx = si.ch[ch].gr[gr].table_select[1];
+ // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]];
+ } else {
+ htIdx = si.ch[ch].gr[gr].table_select[2];
+ // h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]];
+ }
+
+ huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
+ // 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);
+
+ is_1d[index++] = x[0];
+ is_1d[index++] = y[0];
+
+ CheckSumHuff = CheckSumHuff + x[0] + y[0];
+ // System.out.println("x = " + x[0] + " y = " + y[0]);
+ }
+
+ // Read count1 area
+
+ int htIdx = si.ch[ch].gr[gr].count1table_select + 32;
+ // h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select + 32];
+ num_bits = br.hsstell();
+
+ TERMINATE: while ((num_bits < part2_3_end) && (index < 576)) {
+
+ huffcodetab.huffman_decoder(htIdx, x, y, v, w, br);
+
+ is_1d[index++] = v[0];
+ is_1d[index++] = w[0];
+ is_1d[index++] = x[0];
+ is_1d[index++] = y[0];
+ CheckSumHuff = CheckSumHuff + v[0] + w[0] + x[0] + y[0];
+ // System.out.println("v = "+v[0]+" w = "+w[0]);
+ // System.out.println("x = "+x[0]+" y = "+y[0]);
+ num_bits = br.hsstell();
+ }
+
+ if (num_bits > part2_3_end) {
+ br.rewindNbits(num_bits - part2_3_end);
+ index -= 4;
+ }
+
+ num_bits = br.hsstell();
+
+ // Dismiss stuffing bits
+ if (num_bits < part2_3_end)
+ br.hgetbits(part2_3_end - num_bits);
+
+ // Zero out rest
+
+ if (index < 576)
+ nonzero[ch] = index;
+ else
+ nonzero[ch] = 576;
+
+ if (index < 0)
+ index = 0;
+
+ // may not be necessary
+ for (; index < 576; index++)
+ is_1d[index] = 0;
+ }
+
+
+ private int huffcodetab_huffman_decoder( int h) {
+ // TODO need to move huffmancodetab implementation here
+ return 0;
+ }
+
+ /**
+ *
+ */
+ private void i_stereo_k_values( int is_pos,
+ int io_type, int i) {
+ if (is_pos == 0) {
+ k[0][i] = 1.0f;
+ k[1][i] = 1.0f;
+ } else if ((is_pos & 1) != 0) {
+ k[0][i] = io[io_type][(is_pos + 1) >>> 1];
+ k[1][i] = 1.0f;
+ } else {
+ k[0][i] = 1.0f;
+ k[1][i] = io[io_type][is_pos >>> 1];
+ }
+ }
+
+ /**
+ *
+ */
+ //
+
+ // ssjava
+ private void dequantize_sample(
+ /* float xr[][], */ int ch,
+ int gr) {
+
+ // gr_info_s gr_info = (si.ch[ch].gr[gr]); remove alias!
+ int cb = 0;
+
+ int next_cb_boundary;
+ int cb_begin = 0;
+ int cb_width = 0;
+ float g_gain;
+
+ int index = 0;
+ int t_index;
+ int j;
+
+ // float[][] xr_1d = xr;//substituted xr for instances of xr_1d to decrease
+ // number of areas
+
+ // choose correct scalefactor band per block type, initalize boundary
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+ if (si.ch[ch].gr[gr].mixed_block_flag != 0)
+ next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
+ else {
+ cb_width = sfBandIndex[sfreq].s[1];
+ next_cb_boundary = (cb_width << 2) - cb_width;
+ cb_begin = 0;
+ }
+ } else {
+ next_cb_boundary = sfBandIndex[sfreq].l[1]; // LONG blocks: 0,1,3
+ }
+
+ // Compute overall (global) scaling.
+
+ g_gain = (float) Math.pow(2.0, (0.25 * (si.ch[ch].gr[gr].global_gain - 210.0)));
+
+ for (j = 0; j < nonzero[ch]; j++) {
+ // Modif E.B 02/22/99
+ int reste = j % SSLIMIT;
+ int quotien = (int) ((j - reste) / SSLIMIT);
+ if (is_1d[j] == 0) {
+ ro[ch][quotien][reste] = 0.0f;
+ } else {
+ int abv = is_1d[j];
+ // Pow Array fix (11/17/04)
+ if (abv < t_43.length) {
+ if (is_1d[j] > 0)
+ ro[ch][quotien][reste] = g_gain * t_43[abv];
+ else {
+ if (-abv < t_43.length)
+ ro[ch][quotien][reste] = -g_gain * t_43[-abv];
+ else
+ ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
+ }
+ } else {
+ if (is_1d[j] > 0)
+ ro[ch][quotien][reste] = g_gain * (float) Math.pow(abv, d43);
+ else
+ ro[ch][quotien][reste] = -g_gain * (float) Math.pow(-abv, d43);
+ }
+ }
+ }
+
+ // apply formula per block type
+ for (j = 0; j < nonzero[ch]; j++) {
+ // Modif E.B 02/22/99
+ int reste = j % SSLIMIT;
+ int quotien = (int) ((j - reste) / SSLIMIT);
+
+ if (index == next_cb_boundary) { /* Adjust critical band boundary */
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+ if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
+
+ if (index == sfBandIndex[sfreq].l[8]) {
+ next_cb_boundary = sfBandIndex[sfreq].s[4];
+ next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
+ cb = 3;
+ cb_width = sfBandIndex[sfreq].s[4] - sfBandIndex[sfreq].s[3];
+
+ cb_begin = sfBandIndex[sfreq].s[3];
+ cb_begin = (cb_begin << 2) - cb_begin;
+
+ } else if (index < sfBandIndex[sfreq].l[8]) {
+
+ next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
+
+ } else {
+
+ next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
+ next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
+
+ cb_begin = sfBandIndex[sfreq].s[cb];
+ cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
+ cb_begin = (cb_begin << 2) - cb_begin;
+ }
+
+ } else {
+
+ next_cb_boundary = sfBandIndex[sfreq].s[(++cb) + 1];
+ next_cb_boundary = (next_cb_boundary << 2) - next_cb_boundary;
+
+ cb_begin = sfBandIndex[sfreq].s[cb];
+ cb_width = sfBandIndex[sfreq].s[cb + 1] - cb_begin;
+ cb_begin = (cb_begin << 2) - cb_begin;
+ }
+
+ } else { // long blocks
+
+ next_cb_boundary = sfBandIndex[sfreq].l[(++cb) + 1];
+
+ }
+ }
+
+ // Do long/short dependent scaling operations
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0)
+ && (((si.ch[ch].gr[gr].block_type == 2) && (si.ch[ch].gr[gr].mixed_block_flag == 0)) || ((si.ch[ch].gr[gr].block_type == 2)
+ && (si.ch[ch].gr[gr].mixed_block_flag != 0) && (j >= 36)))) {
+
+ t_index = (index - cb_begin) / cb_width;
+ /*
+ * xr[sb][ss] *= pow(2.0, ((-2.0 * gr_info.subblock_gain[t_index]) -(0.5
+ * * (1.0 + gr_info.scalefac_scale) scalefac[ch].s[t_index][cb])));
+ */
+ int idx =
+ scalefac[ch].s[t_index][cb] << si.ch[ch].gr[gr].scalefac_scale;
+ idx += (si.ch[ch].gr[gr].subblock_gain[t_index] << 2);
+
+ ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
+
+ } else { // LONG block types 0,1,3 & 1st 2 subbands of switched blocks
+ /*
+ * xr[sb][ss] *= pow(2.0, -0.5 * (1.0+gr_info.scalefac_scale)
+ * (scalefac[ch].l[cb] + gr_info.preflag * pretab[cb]));
+ */
+ int idx = scalefac[ch].l[cb];
+
+ if (si.ch[ch].gr[gr].preflag != 0)
+ idx += pretab[cb];
+
+ idx = idx << si.ch[ch].gr[gr].scalefac_scale;
+ ro[ch][quotien][reste] *= two_to_negative_half_pow[idx];
+ }
+ index++;
+ }
+
+ for (j = nonzero[ch]; j < 576; j++) {
+ // Modif E.B 02/22/99
+ int reste = j % SSLIMIT;
+ int quotien = (int) ((j - reste) / SSLIMIT);
+ if (reste < 0)
+ reste = 0;
+ if (quotien < 0)
+ quotien = 0;
+ ro[ch][quotien][reste] = 0.0f;
+ }
+
+ return;
+ }
+
+ /**
+ *
+ */
+ // ssjava
+ //
+
+ private void reorder(/* float xr[][], */ int ch,
+ int gr) {
+ // the purpose of reordering: move 'short samples' back to their original
+ // position
+ // after reorder, the samples are no long ordered by frequency
+
+ // the format of input data to reorder:
+ // three small chunks of 192 samples each are combined to 576 samples
+ // ordered by frequency
+
+ // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
+
+ int index;
+
+ int freq;
+ int freq3;
+ int sfb;
+ int sfb_start;
+ int sfb_lines;
+ int src_line;
+ int des_line;
+ // float[][] xr_1d = xr; subbed in xr for xr_1d so as not to create extra
+ // areas
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)) {
+
+ // for (index = 0; index < 576; index++) {
+ // inter[index] = 0.0f;
+ // }
+
+ if (si.ch[ch].gr[gr].mixed_block_flag != 0) {
+ // NO REORDER FOR LOW 2 SUBBANDS
+ for (index = 0; index < 36; index++) {
+ // Modif E.B 02/22/99
+ int reste = index % SSLIMIT;
+ int quotien = (int) ((index - reste) / SSLIMIT);
+ inter[index] = lr[ch][quotien][reste];
+ }
+ // REORDERING FOR REST SWITCHED SHORT
+ /*
+ * for( sfb=3,sfb_start=sfBandIndex[sfreq].s[3],
+ * sfb_lines=sfBandIndex[sfreq].s[4] - sfb_start; sfb < 13;
+ * sfb++,sfb_start = sfBandIndex[sfreq].s[sfb], sfb_lines =
+ * sfBandIndex[sfreq].s[sfb+1] - sfb_start ) {
+ */
+ for (sfb = 3; sfb < 13; sfb++) {
+ // System.out.println("sfreq="+sfreq+" sfb="+sfb+" sfBandIndex="+sfBandIndex.length+" sfBandIndex[sfreq].s="+sfBandIndex[sfreq].s.length);
+ sfb_start = sfBandIndex[sfreq].s[sfb];
+ sfb_lines = sfBandIndex[sfreq].s[sfb + 1] - sfb_start;
+
+ int sfb_start3 = (sfb_start << 2) - sfb_start;
+
+ for (freq = 0, freq3 = 0; freq < sfb_lines; freq++, freq3 += 3) {
+
+ src_line = sfb_start3 + freq;
+ des_line = sfb_start3 + freq3;
+ // Modif E.B 02/22/99
+ int reste = src_line % SSLIMIT;
+ int quotien = (int) ((src_line - reste) / SSLIMIT);
+
+ inter[des_line] = lr[ch][quotien][reste];
+ src_line += sfb_lines;
+ des_line++;
+
+ reste = src_line % SSLIMIT;
+ quotien = (int) ((src_line - reste) / SSLIMIT);
+
+ inter[des_line] = lr[ch][quotien][reste];
+ src_line += sfb_lines;
+ des_line++;
+
+ reste = src_line % SSLIMIT;
+ quotien = (int) ((src_line - reste) / SSLIMIT);
+
+ inter[des_line] = lr[ch][quotien][reste];
+ }
+ }
+
+ } else { // pure short
+ for (index = 0; index < 576; index++) {
+ int j = reorder_table[sfreq][index];
+ int reste = j % SSLIMIT;
+ int quotien = (int) ((j - reste) / SSLIMIT);
+ inter[index] = lr[ch][quotien][reste];
+ }
+ }
+ } else { // long blocks
+ for (index = 0; index < 576; index++) {
+ // Modif E.B 02/22/99
+ int reste = index % SSLIMIT;
+ int quotien = (int) ((index - reste) / SSLIMIT);
+ inter[index] = lr[ch][quotien][reste];
+ }
+ }
+ }
+
+ /**
+ *
+ */
+
+
+ int[] is_pos = new int[576];
+
+ float[] is_ratio = new float[576];
+
+ // ssjava
+
+ private void stereo( Header header,
+ int gr) {
+ int sb;
+ int ss;
+
+ if (channels == 1) { // mono , bypass xr[0][][] to lr[0][][]
+
+ for (sb = 0; sb < SBLIMIT; sb++)
+ for (ss = 0; ss < SSLIMIT; ss += 3) {
+ lr[0][sb][ss] = ro[0][sb][ss];
+ lr[0][sb][ss + 1] = ro[0][sb][ss + 1];
+ lr[0][sb][ss + 2] = ro[0][sb][ss + 2];
+ }
+
+ } else {
+
+ // gr_info_s gr_info = (si.ch[0].gr[gr]); remove alias
+ int mode_ext = header.mode_extension();
+
+ int sfb;
+ int i;
+ int lines;
+ int temp;
+ int temp2;
+
+ boolean ms_stereo =
+ ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x2) != 0));
+ boolean i_stereo =
+ ((header.mode() == Header.JOINT_STEREO) && ((mode_ext & 0x1) != 0));
+ boolean lsf =
+ ((header.version() == Header.MPEG2_LSF || header.version() == Header.MPEG25_LSF)); // SZD
+
+ int io_type = (si.ch[0].gr[gr].scalefac_compress & 1);
+
+ // initialization
+ // for (i = 0; i < 576; i++) {
+ // is_pos[i] = 7;
+ // is_ratio[i] = 0.0f;
+ // }
+
+ if (i_stereo) {
+ if ((si.ch[0].gr[gr].window_switching_flag != 0) && (si.ch[0].gr[gr].block_type == 2)) {
+ if (si.ch[0].gr[gr].mixed_block_flag != 0) {
+
+ int max_sfb = 0;
+
+ for ( int j = 0; j < 3; j++) {
+ int sfbcnt;
+ sfbcnt = 2;
+ TERMINATE: for (sfb = 12; sfb >= 3; sfb--) {
+ i = sfBandIndex[sfreq].s[sfb];
+ lines = sfBandIndex[sfreq].s[sfb + 1] - i;
+ i = (i << 2) - i + (j + 1) * lines - 1;
+ TERMINATE: while (lines > 0) {
+ if (ro[1][i / 18][i % 18] != 0.0f) {
+ // MDM: in java, array access is very slow.
+ // Is quicker to compute div and mod values.
+ // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
+ sfbcnt = sfb;
+ sfb = -10;
+ lines = -10;
+ }
+
+ lines--;
+ i--;
+
+ } // while (lines > 0)
+
+ } // for (sfb=12 ...
+ sfb = sfbcnt + 1;
+
+ if (sfb > max_sfb)
+ max_sfb = sfb;
+
+ while (sfb < 12) {
+ temp = sfBandIndex[sfreq].s[sfb];
+ sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
+ i = (temp << 2) - temp + j * sb;
+
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = scalefac[1].s[j][sfb];
+ if (is_pos[i] != 7)
+ if (lsf)
+ i_stereo_k_values(is_pos[i], io_type, i);
+ else
+ is_ratio[i] = TAN12[is_pos[i]];
+
+ i++;
+ } // for (; sb>0...
+ sfb++;
+ } // while (sfb < 12)
+ sfb = sfBandIndex[sfreq].s[10];
+ sb = sfBandIndex[sfreq].s[11] - sfb;
+ sfb = (sfb << 2) - sfb + j * sb;
+ temp = sfBandIndex[sfreq].s[11];
+ sb = sfBandIndex[sfreq].s[12] - temp;
+ i = (temp << 2) - temp + j * sb;
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = is_pos[sfb];
+
+ if (lsf) {
+ k[0][i] = k[0][sfb];
+ k[1][i] = k[1][sfb];
+ } else {
+ is_ratio[i] = is_ratio[sfb];
+ }
+ i++;
+ } // for (; sb > 0 ...
+ }
+ if (max_sfb <= 3) {
+ i = 2;
+ ss = 17;
+ sb = -1;
+ TERMINATE: while (i >= 0) {
+ if (ro[1][i][ss] != 0.0f) {
+ sb = (i << 4) + (i << 1) + ss;
+ i = -1;
+ } else {
+ ss--;
+ if (ss < 0) {
+ i--;
+ ss = 17;
+ }
+ } // if (ro ...
+ } // while (i>=0)
+ i = 0;
+ while (sfBandIndex[sfreq].l[i] <= sb)
+ i++;
+ sfb = i;
+ i = sfBandIndex[sfreq].l[i];
+ for (; sfb < 8; sfb++) {
+ sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = scalefac[1].l[sfb];
+ if (is_pos[i] != 7)
+ if (lsf)
+ i_stereo_k_values(is_pos[i], io_type, i);
+ else
+ is_ratio[i] = TAN12[is_pos[i]];
+ i++;
+ } // for (; sb>0 ...
+ } // for (; sfb<8 ...
+ } // for (j=0 ...
+ } else { // if (gr_info.mixed_block_flag)
+ for ( int j = 0; j < 3; j++) {
+ int sfbcnt;
+ sfbcnt = -1;
+ TERMINATE: for (sfb = 12; sfb >= 0; sfb--) {
+ temp = sfBandIndex[sfreq].s[sfb];
+ lines = sfBandIndex[sfreq].s[sfb + 1] - temp;
+ i = (temp << 2) - temp + (j + 1) * lines - 1;
+ TERMINATE: while (lines > 0) {
+ if (ro[1][i / 18][i % 18] != 0.0f) {
+ // MDM: in java, array access is very slow.
+ // Is quicker to compute div and mod values.
+ // if (ro[1][ss_div[i]][ss_mod[i]] != 0.0f) {
+ sfbcnt = sfb;
+ sfb = -10;
+ lines = -10;
+ }
+ lines--;
+ i--;
+ } // while (lines > 0) */
+
+ } // for (sfb=12 ...
+ sfb = sfbcnt + 1;
+ while (sfb < 12) {
+ temp = sfBandIndex[sfreq].s[sfb];
+ sb = sfBandIndex[sfreq].s[sfb + 1] - temp;
+ i = (temp << 2) - temp + j * sb;
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = scalefac[1].s[j][sfb];
+ if (is_pos[i] != 7)
+ if (lsf)
+ i_stereo_k_values(is_pos[i], io_type, i);
+ else
+ is_ratio[i] = TAN12[is_pos[i]];
+ i++;
+ } // for (; sb>0 ...
+ sfb++;
+ } // while (sfb<12)
+
+ temp = sfBandIndex[sfreq].s[10];
+ temp2 = sfBandIndex[sfreq].s[11];
+ sb = temp2 - temp;
+ sfb = (temp << 2) - temp + j * sb;
+ sb = sfBandIndex[sfreq].s[12] - temp2;
+ i = (temp2 << 2) - temp2 + j * sb;
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = is_pos[sfb];
+
+ if (lsf) {
+ k[0][i] = k[0][sfb];
+ k[1][i] = k[1][sfb];
+ } else {
+ is_ratio[i] = is_ratio[sfb];
+ }
+ i++;
+ } // for (; sb>0 ...
+ } // for (sfb=12
+ } // for (j=0 ...
+ } else { // if (gr_info.window_switching_flag ...
+ i = 31;
+ ss = 17;
+ sb = 0;
+ TERMINATE: while (i >= 0) {
+ if (ro[1][i][ss] != 0.0f) {
+ sb = (i << 4) + (i << 1) + ss;
+ i = -1;
+ } else {
+ ss--;
+ if (ss < 0) {
+ i--;
+ ss = 17;
+ }
+ }
+ }
+ i = 0;
+ while (sfBandIndex[sfreq].l[i] <= sb)
+ i++;
+
+ sfb = i;
+ i = sfBandIndex[sfreq].l[i];
+ for (; sfb < 21; sfb++) {
+ sb = sfBandIndex[sfreq].l[sfb + 1] - sfBandIndex[sfreq].l[sfb];
+ TERMINATE: for (; sb > 0; sb--) {
+ is_pos[i] = scalefac[1].l[sfb];
+ if (is_pos[i] != 7)
+ if (lsf)
+ i_stereo_k_values(is_pos[i], io_type, i);
+ else
+ is_ratio[i] = TAN12[is_pos[i]];
+ i++;
+ }
+ }
+ sfb = sfBandIndex[sfreq].l[20];
+ TERMINATE: for (sb = 576 - sfBandIndex[sfreq].l[21]; (sb > 0) && (i < 576); sb--) {
+ is_pos[i] = is_pos[sfb]; // error here : i >=576
+
+ if (lsf) {
+ k[0][i] = k[0][sfb];
+ k[1][i] = k[1][sfb];
+ } else {
+ is_ratio[i] = is_ratio[sfb];
+ }
+ i++;
+ } // if (gr_info.mixed_block_flag)
+ } // if (gr_info.window_switching_flag ...
+ } // if (i_stereo)
+
+ i = 0;
+ for (sb = 0; sb < SBLIMIT; sb++)
+ for (ss = 0; ss < SSLIMIT; ss++) {
+ if (is_pos[i] == 7) {
+ if (ms_stereo) {
+ lr[0][sb][ss] = (ro[0][sb][ss] + ro[1][sb][ss]) * 0.707106781f;
+ lr[1][sb][ss] = (ro[0][sb][ss] - ro[1][sb][ss]) * 0.707106781f;
+ } else {
+ lr[0][sb][ss] = ro[0][sb][ss];
+ lr[1][sb][ss] = ro[1][sb][ss];
+ }
+ } else if (i_stereo) {
+
+ if (lsf) {
+ lr[0][sb][ss] = ro[0][sb][ss] * k[0][i];
+ lr[1][sb][ss] = ro[0][sb][ss] * k[1][i];
+ } else {
+ lr[1][sb][ss] = ro[0][sb][ss] / (float) (1 + is_ratio[i]);
+ lr[0][sb][ss] = lr[1][sb][ss] * is_ratio[i];
+ }
+ }
+ /*
+ * else { System.out.println("Error in stereo processing\n"); }
+ */
+ i++;
+ }
+
+ } // channels == 2
+
+ }
+
+ /**
+ *
+ */
+ //
+
+ private void antialias( int ch,
+ int gr) {
+
+ int sb18;
+ int ss;
+ int sb18lim;
+
+ //
+ // gr_info_s gr_info =
+ // (si.ch[ch].gr[gr]);
+ // 31 alias-reduction operations between each pair of sub-bands
+ // with 8 butterflies between each pair
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].block_type == 2)
+ && !(si.ch[ch].gr[gr].mixed_block_flag != 0))
+ return;
+
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0)
+ && (si.ch[ch].gr[gr].block_type == 2)) {
+ sb18lim = 18;
+ } else {
+ sb18lim = 558;
+ }
+
+ for (sb18 = 0; sb18 < sb18lim; sb18 += 18) {
+ for (ss = 0; ss < 8; ss++) {
+ int src_idx1 = sb18 + 17 - ss;
+ int src_idx2 = sb18 + 18 + ss;
+ float bu = inter[src_idx1];
+ float bd = inter[src_idx2];
+ inter[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]);
+ inter[src_idx2] = (bd * cs[ss]) + (bu * ca[ss]);
+ }
+ }
+ }
+
+ /**
+ *
+ */
+
+ // MDM: tsOutCopy and rawout do not need initializing, so the arrays
+ // can be reused.
+
+ float[] tsOutCopy = new float[18];
+
+ float[] rawout = new float[36];
+
+
+ private void hybrid( int ch, int gr) {
+
+ int bt;
+ int sb18;
+ // gr_info_s gr_info = (si.ch[ch].gr[gr]); //remove alias
+ // float[] tsOut; //remove alias
+
+ // float[][] prvblk;
+
+ for (sb18 = 0; sb18 < 576; sb18 += 18) {
+ if ((si.ch[ch].gr[gr].window_switching_flag != 0) && (si.ch[ch].gr[gr].mixed_block_flag != 0)
+ && (sb18 < 36)) {
+ bt = 0;
+ } else {
+ bt = si.ch[ch].gr[gr].block_type;
+ }
+
+ // tsOut = out_1d;
+ // Modif E.B 02/22/99
+ for ( int cc = 0; cc < 18; cc++) {
+ // tsOutCopy[cc] = out_1d[cc + sb18];
+ tsOutCopy[cc] = inter[cc + sb18];
+ }
+
+ inv_mdct(bt);
+
+ for ( int cc = 0; cc < 18; cc++) {
+ out_1d[cc + sb18] = tsOutCopy[cc];
+ }
+
+ // Fin Modif
+
+ // overlap addition
+ out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
+ out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
+ out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
+ out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
+ out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
+ out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
+ out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
+ out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
+ out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
+ out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
+ out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
+ out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
+ out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
+ out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
+ out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
+ out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
+ out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
+ out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
+ raw_full[ch][sb18 + 0] = rawout[18];
+ raw_full[ch][sb18 + 1] = rawout[19];
+ raw_full[ch][sb18 + 2] = rawout[20];
+ raw_full[ch][sb18 + 3] = rawout[21];
+ raw_full[ch][sb18 + 4] = rawout[22];
+ raw_full[ch][sb18 + 5] = rawout[23];
+ raw_full[ch][sb18 + 6] = rawout[24];
+ raw_full[ch][sb18 + 7] = rawout[25];
+ raw_full[ch][sb18 + 8] = rawout[26];
+ raw_full[ch][sb18 + 9] = rawout[27];
+ raw_full[ch][sb18 + 10] = rawout[28];
+ raw_full[ch][sb18 + 11] = rawout[29];
+ raw_full[ch][sb18 + 12] = rawout[30];
+ raw_full[ch][sb18 + 13] = rawout[31];
+ raw_full[ch][sb18 + 14] = rawout[32];
+ raw_full[ch][sb18 + 15] = rawout[33];
+ raw_full[ch][sb18 + 16] = rawout[34];
+ raw_full[ch][sb18 + 17] = rawout[35];
+
+ // original implementation:
+ // out_1d[0 + sb18] = rawout[0] + prevblck[ch][sb18 + 0];
+ // prevblck[ch][sb18 + 0] = rawout[18];
+ // out_1d[1 + sb18] = rawout[1] + prevblck[ch][sb18 + 1];
+ // prevblck[ch][sb18 + 1] = rawout[19];
+ // out_1d[2 + sb18] = rawout[2] + prevblck[ch][sb18 + 2];
+ // prevblck[ch][sb18 + 2] = rawout[20];
+ // out_1d[3 + sb18] = rawout[3] + prevblck[ch][sb18 + 3];
+ // prevblck[ch][sb18 + 3] = rawout[21];
+ // out_1d[4 + sb18] = rawout[4] + prevblck[ch][sb18 + 4];
+ // prevblck[ch][sb18 + 4] = rawout[22];
+ // out_1d[5 + sb18] = rawout[5] + prevblck[ch][sb18 + 5];
+ // prevblck[ch][sb18 + 5] = rawout[23];
+ // out_1d[6 + sb18] = rawout[6] + prevblck[ch][sb18 + 6];
+ // prevblck[ch][sb18 + 6] = rawout[24];
+ // out_1d[7 + sb18] = rawout[7] + prevblck[ch][sb18 + 7];
+ // prevblck[ch][sb18 + 7] = rawout[25];
+ // out_1d[8 + sb18] = rawout[8] + prevblck[ch][sb18 + 8];
+ // prevblck[ch][sb18 + 8] = rawout[26];
+ // out_1d[9 + sb18] = rawout[9] + prevblck[ch][sb18 + 9];
+ // prevblck[ch][sb18 + 9] = rawout[27];
+ // out_1d[10 + sb18] = rawout[10] + prevblck[ch][sb18 + 10];
+ // prevblck[ch][sb18 + 10] = rawout[28];
+ // out_1d[11 + sb18] = rawout[11] + prevblck[ch][sb18 + 11];
+ // prevblck[ch][sb18 + 11] = rawout[29];
+ // out_1d[12 + sb18] = rawout[12] + prevblck[ch][sb18 + 12];
+ // prevblck[ch][sb18 + 12] = rawout[30];
+ // out_1d[13 + sb18] = rawout[13] + prevblck[ch][sb18 + 13];
+ // prevblck[ch][sb18 + 13] = rawout[31];
+ // out_1d[14 + sb18] = rawout[14] + prevblck[ch][sb18 + 14];
+ // prevblck[ch][sb18 + 14] = rawout[32];
+ // out_1d[15 + sb18] = rawout[15] + prevblck[ch][sb18 + 15];
+ // prevblck[ch][sb18 + 15] = rawout[33];
+ // out_1d[16 + sb18] = rawout[16] + prevblck[ch][sb18 + 16];
+ // prevblck[ch][sb18 + 16] = rawout[34];
+ // out_1d[17 + sb18] = rawout[17] + prevblck[ch][sb18 + 17];
+ // prevblck[ch][sb18 + 17] = rawout[35];
+
+ }
+ }
+
+ /**
+ *
+ */
+ private void do_downmix() {
+ for ( int sb = 0; sb < SSLIMIT; sb++) {
+ for ( int ss = 0; ss < SSLIMIT; ss += 3) {
+ lr[0][sb][ss] = (lr[0][sb][ss] + lr[1][sb][ss]) * 0.5f;
+ lr[0][sb][ss + 1] = (lr[0][sb][ss + 1] + lr[1][sb][ss + 1]) * 0.5f;
+ lr[0][sb][ss + 2] = (lr[0][sb][ss + 2] + lr[1][sb][ss + 2]) * 0.5f;
+ }
+ }
+ }
+
+ /**
+ * Fast INV_MDCT.
+ */
+ //
+ // public void inv_mdct( float[] in, float[] out,
+ // int block_type) {//remove alias
+ // ssjava
+
+ public void inv_mdct( int block_type) {
+ // float[] win_bt;
+ int i;
+
+ float tmpf_0;
+ float tmpf_1;
+ float tmpf_2;
+ float tmpf_3;
+ float tmpf_4;
+ float tmpf_5;
+ float tmpf_6;
+ float tmpf_7;
+ float tmpf_8;
+ float tmpf_9;
+ float tmpf_10;
+ float tmpf_11;
+ float tmpf_12;
+ float tmpf_13;
+ float tmpf_14;
+ float tmpf_15;
+ float tmpf_16;
+ float tmpf_17;
+
+ tmpf_0 =
+ tmpf_1 =
+ tmpf_2 =
+ tmpf_3 =
+ tmpf_4 =
+ tmpf_5 =
+ tmpf_6 =
+ tmpf_7 =
+ tmpf_8 =
+ tmpf_9 =
+ tmpf_10 =
+ tmpf_11 =
+ tmpf_12 =
+ tmpf_13 =
+ tmpf_14 =
+ tmpf_15 = tmpf_16 = tmpf_17 = 0.0f;
+
+ if (block_type == 2) {
+
+ /*
+ *
+ * Under MicrosoftVM 2922, This causes a GPF, or At best, an
+ * ArrayIndexOutOfBoundsExceptin. for(int p=0;p<36;p+=9) { out[p] =
+ * out[p+1] = out[p+2] = out[p+3] = out[p+4] = out[p+5] = out[p+6] =
+ * out[p+7] = out[p+8] = 0.0f; }
+ */
+ rawout[0] = 0.0f;
+ rawout[1] = 0.0f;
+ rawout[2] = 0.0f;
+ rawout[3] = 0.0f;
+ rawout[4] = 0.0f;
+ rawout[5] = 0.0f;
+ rawout[6] = 0.0f;
+ rawout[7] = 0.0f;
+ rawout[8] = 0.0f;
+ rawout[9] = 0.0f;
+ rawout[10] = 0.0f;
+ rawout[11] = 0.0f;
+ rawout[12] = 0.0f;
+ rawout[13] = 0.0f;
+ rawout[14] = 0.0f;
+ rawout[15] = 0.0f;
+ rawout[16] = 0.0f;
+ rawout[17] = 0.0f;
+ rawout[18] = 0.0f;
+ rawout[19] = 0.0f;
+ rawout[20] = 0.0f;
+ rawout[21] = 0.0f;
+ rawout[22] = 0.0f;
+ rawout[23] = 0.0f;
+ rawout[24] = 0.0f;
+ rawout[25] = 0.0f;
+ rawout[26] = 0.0f;
+ rawout[27] = 0.0f;
+ rawout[28] = 0.0f;
+ rawout[29] = 0.0f;
+ rawout[30] = 0.0f;
+ rawout[31] = 0.0f;
+ rawout[32] = 0.0f;
+ rawout[33] = 0.0f;
+ rawout[34] = 0.0f;
+ rawout[35] = 0.0f;
+
+ int six_i = 0;
+
+ for (i = 0; i < 3; i++) {
+ // 12 point IMDCT
+ // Begin 12 point IDCT
+ // Input aliasing for 12 pt IDCT
+ tsOutCopy[15 + i] += tsOutCopy[12 + i];
+ tsOutCopy[12 + i] += tsOutCopy[9 + i];
+ tsOutCopy[9 + i] += tsOutCopy[6 + i];
+ tsOutCopy[6 + i] += tsOutCopy[3 + i];
+ tsOutCopy[3 + i] += tsOutCopy[0 + i];
+
+ // Input aliasing on odd indices (for 6 point IDCT)
+ tsOutCopy[15 + i] += tsOutCopy[9 + i];
+ tsOutCopy[9 + i] += tsOutCopy[3 + i];
+
+ // 3 point IDCT on even indices
+ float pp1;
+ float pp2;
+ float sum;
+ pp2 = tsOutCopy[12 + i] * 0.500000000f;
+ pp1 = tsOutCopy[6 + i] * 0.866025403f;
+ sum = tsOutCopy[0 + i] + pp2;
+ tmpf_1 = tsOutCopy[0 + i] - tsOutCopy[12 + i];
+ tmpf_0 = sum + pp1;
+ tmpf_2 = sum - pp1;
+
+ // End 3 point IDCT on even indices
+ // 3 point IDCT on odd indices (for 6 point IDCT)
+ pp2 = tsOutCopy[15 + i] * 0.500000000f;
+ pp1 = tsOutCopy[9 + i] * 0.866025403f;
+ sum = tsOutCopy[3 + i] + pp2;
+ tmpf_4 = tsOutCopy[3 + i] - tsOutCopy[15 + i];
+ tmpf_5 = sum + pp1;
+ tmpf_3 = sum - pp1;
+ // End 3 point IDCT on odd indices
+ // Twiddle factors on odd indices (for 6 point IDCT)
+
+ tmpf_3 *= 1.931851653f;
+ tmpf_4 *= 0.707106781f;
+ tmpf_5 *= 0.517638090f;
+
+ // Output butterflies on 2 3 point IDCT's (for 6 point IDCT)
+ float save = tmpf_0;
+ tmpf_0 += tmpf_5;
+ tmpf_5 = save - tmpf_5;
+ save = tmpf_1;
+ tmpf_1 += tmpf_4;
+ tmpf_4 = save - tmpf_4;
+ save = tmpf_2;
+ tmpf_2 += tmpf_3;
+ tmpf_3 = save - tmpf_3;
+
+ // End 6 point IDCT
+ // Twiddle factors on indices (for 12 point IDCT)
+
+ tmpf_0 *= 0.504314480f;
+ tmpf_1 *= 0.541196100f;
+ tmpf_2 *= 0.630236207f;
+ tmpf_3 *= 0.821339815f;
+ tmpf_4 *= 1.306562965f;
+ tmpf_5 *= 3.830648788f;
+
+ // End 12 point IDCT
+
+ // Shift to 12 point modified IDCT, multiply by window type 2
+ tmpf_8 = -tmpf_0 * 0.793353340f;
+ tmpf_9 = -tmpf_0 * 0.608761429f;
+ tmpf_7 = -tmpf_1 * 0.923879532f;
+ tmpf_10 = -tmpf_1 * 0.382683432f;
+ tmpf_6 = -tmpf_2 * 0.991444861f;
+ tmpf_11 = -tmpf_2 * 0.130526192f;
+
+ tmpf_0 = tmpf_3;
+ tmpf_1 = tmpf_4 * 0.382683432f;
+ tmpf_2 = tmpf_5 * 0.608761429f;
+
+ tmpf_3 = -tmpf_5 * 0.793353340f;
+ tmpf_4 = -tmpf_4 * 0.923879532f;
+ tmpf_5 = -tmpf_0 * 0.991444861f;
+
+ tmpf_0 *= 0.130526192f;
+
+ rawout[six_i + 6] += tmpf_0;
+ rawout[six_i + 7] += tmpf_1;
+ rawout[six_i + 8] += tmpf_2;
+ rawout[six_i + 9] += tmpf_3;
+ rawout[six_i + 10] += tmpf_4;
+ rawout[six_i + 11] += tmpf_5;
+ rawout[six_i + 12] += tmpf_6;
+ rawout[six_i + 13] += tmpf_7;
+ rawout[six_i + 14] += tmpf_8;
+ rawout[six_i + 15] += tmpf_9;
+ rawout[six_i + 16] += tmpf_10;
+ rawout[six_i + 17] += tmpf_11;
+
+ six_i += 6;
+ }
+ } else {
+ // 36 point IDCT
+ // input aliasing for 36 point IDCT
+ tsOutCopy[17] += tsOutCopy[16];
+ tsOutCopy[16] += tsOutCopy[15];
+ tsOutCopy[15] += tsOutCopy[14];
+ tsOutCopy[14] += tsOutCopy[13];
+ tsOutCopy[13] += tsOutCopy[12];
+ tsOutCopy[12] += tsOutCopy[11];
+ tsOutCopy[11] += tsOutCopy[10];
+ tsOutCopy[10] += tsOutCopy[9];
+ tsOutCopy[9] += tsOutCopy[8];
+ tsOutCopy[8] += tsOutCopy[7];
+ tsOutCopy[7] += tsOutCopy[6];
+ tsOutCopy[6] += tsOutCopy[5];
+ tsOutCopy[5] += tsOutCopy[4];
+ tsOutCopy[4] += tsOutCopy[3];
+ tsOutCopy[3] += tsOutCopy[2];
+ tsOutCopy[2] += tsOutCopy[1];
+ tsOutCopy[1] += tsOutCopy[0];
+
+ // 18 point IDCT for odd indices
+ // input aliasing for 18 point IDCT
+ tsOutCopy[17] += tsOutCopy[15];
+ tsOutCopy[15] += tsOutCopy[13];
+ tsOutCopy[13] += tsOutCopy[11];
+ tsOutCopy[11] += tsOutCopy[9];
+ tsOutCopy[9] += tsOutCopy[7];
+ tsOutCopy[7] += tsOutCopy[5];
+ tsOutCopy[5] += tsOutCopy[3];
+ tsOutCopy[3] += tsOutCopy[1];
+
+ float tmp0;
+ float tmp1;
+ float tmp2;
+ float tmp3;
+ float tmp4;
+ float tmp0_;
+ float tmp1_;
+ float tmp2_;
+ float tmp3_;
+ float tmp0o;
+ float tmp1o;
+ float tmp2o;
+ float tmp3o;
+ float tmp4o;
+ float tmp0_o;
+ float tmp1_o;
+ float tmp2_o;
+ float tmp3_o;
+
+ // Fast 9 Point Inverse Discrete Cosine Transform
+ //
+ // By Francois-Raymond Boyer
+ // mailto:boyerf@iro.umontreal.ca
+ // http://www.iro.umontreal.ca/~boyerf
+ //
+ // The code has been optimized for Intel processors
+ // (takes a lot of time to convert float to and from iternal FPU
+ // representation)
+ //
+ // It is a simple "factorization" of the IDCT matrix.
+
+ // 9 point IDCT on even indices
+
+ // 5 points on odd indices (not realy an IDCT)
+ float i00 = tsOutCopy[0] + tsOutCopy[0];
+ float iip12 = i00 + tsOutCopy[12];
+
+ tmp0 =
+ iip12 + tsOutCopy[4] * 1.8793852415718f + tsOutCopy[8] * 1.532088886238f + tsOutCopy[16]
+ * 0.34729635533386f;
+ tmp1 = i00 + tsOutCopy[4] - tsOutCopy[8] - tsOutCopy[12] - tsOutCopy[12] - tsOutCopy[16];
+ tmp2 =
+ iip12 - tsOutCopy[4] * 0.34729635533386f - tsOutCopy[8] * 1.8793852415718f
+ + tsOutCopy[16] * 1.532088886238f;
+ tmp3 =
+ iip12 - tsOutCopy[4] * 1.532088886238f + tsOutCopy[8] * 0.34729635533386f - tsOutCopy[16]
+ * 1.8793852415718f;
+ tmp4 = tsOutCopy[0] - tsOutCopy[4] + tsOutCopy[8] - tsOutCopy[12] + tsOutCopy[16];
+
+ // 4 points on even indices
+ float i66_ = tsOutCopy[6] * 1.732050808f; // Sqrt[3]
+
+ tmp0_ =
+ tsOutCopy[2] * 1.9696155060244f + i66_ + tsOutCopy[10] * 1.2855752193731f + tsOutCopy[14]
+ * 0.68404028665134f;
+ tmp1_ = (tsOutCopy[2] - tsOutCopy[10] - tsOutCopy[14]) * 1.732050808f;
+ tmp2_ =
+ tsOutCopy[2] * 1.2855752193731f - i66_ - tsOutCopy[10] * 0.68404028665134f
+ + tsOutCopy[14] * 1.9696155060244f;
+ tmp3_ =
+ tsOutCopy[2] * 0.68404028665134f - i66_ + tsOutCopy[10] * 1.9696155060244f
+ - tsOutCopy[14] * 1.2855752193731f;
+
+ // 9 point IDCT on odd indices
+ // 5 points on odd indices (not realy an IDCT)
+ float i0 = tsOutCopy[0 + 1] + tsOutCopy[0 + 1];
+ float i0p12 = i0 + tsOutCopy[12 + 1];
+
+ tmp0o =
+ i0p12 + tsOutCopy[4 + 1] * 1.8793852415718f + tsOutCopy[8 + 1] * 1.532088886238f
+ + tsOutCopy[16 + 1] * 0.34729635533386f;
+ tmp1o =
+ i0 + tsOutCopy[4 + 1] - tsOutCopy[8 + 1] - tsOutCopy[12 + 1] - tsOutCopy[12 + 1]
+ - tsOutCopy[16 + 1];
+ tmp2o =
+ i0p12 - tsOutCopy[4 + 1] * 0.34729635533386f - tsOutCopy[8 + 1] * 1.8793852415718f
+ + tsOutCopy[16 + 1] * 1.532088886238f;
+ tmp3o =
+ i0p12 - tsOutCopy[4 + 1] * 1.532088886238f + tsOutCopy[8 + 1] * 0.34729635533386f
+ - tsOutCopy[16 + 1] * 1.8793852415718f;
+ tmp4o =
+ (tsOutCopy[0 + 1] - tsOutCopy[4 + 1] + tsOutCopy[8 + 1] - tsOutCopy[12 + 1] + tsOutCopy[16 + 1]) * 0.707106781f; // Twiddled
+
+ // 4 points on even indices
+ float i6_ = tsOutCopy[6 + 1] * 1.732050808f; // Sqrt[3]
+
+ tmp0_o =
+ tsOutCopy[2 + 1] * 1.9696155060244f + i6_ + tsOutCopy[10 + 1] * 1.2855752193731f
+ + tsOutCopy[14 + 1] * 0.68404028665134f;
+ tmp1_o = (tsOutCopy[2 + 1] - tsOutCopy[10 + 1] - tsOutCopy[14 + 1]) * 1.732050808f;
+ tmp2_o =
+ tsOutCopy[2 + 1] * 1.2855752193731f - i6_ - tsOutCopy[10 + 1] * 0.68404028665134f
+ + tsOutCopy[14 + 1] * 1.9696155060244f;
+ tmp3_o =
+ tsOutCopy[2 + 1] * 0.68404028665134f - i6_ + tsOutCopy[10 + 1] * 1.9696155060244f
+ - tsOutCopy[14 + 1] * 1.2855752193731f;
+
+ // Twiddle factors on odd indices
+ // and
+ // Butterflies on 9 point IDCT's
+ // and
+ // twiddle factors for 36 point IDCT
+
+ float e;
+ float o;
+ e = tmp0 + tmp0_;
+ o = (tmp0o + tmp0_o) * 0.501909918f;
+ tmpf_0 = e + o;
+ tmpf_17 = e - o;
+ e = tmp1 + tmp1_;
+ o = (tmp1o + tmp1_o) * 0.517638090f;
+ tmpf_1 = e + o;
+ tmpf_16 = e - o;
+ e = tmp2 + tmp2_;
+ o = (tmp2o + tmp2_o) * 0.551688959f;
+ tmpf_2 = e + o;
+ tmpf_15 = e - o;
+ e = tmp3 + tmp3_;
+ o = (tmp3o + tmp3_o) * 0.610387294f;
+ tmpf_3 = e + o;
+ tmpf_14 = e - o;
+ tmpf_4 = tmp4 + tmp4o;
+ tmpf_13 = tmp4 - tmp4o;
+ e = tmp3 - tmp3_;
+ o = (tmp3o - tmp3_o) * 0.871723397f;
+ tmpf_5 = e + o;
+ tmpf_12 = e - o;
+ e = tmp2 - tmp2_;
+ o = (tmp2o - tmp2_o) * 1.183100792f;
+ tmpf_6 = e + o;
+ tmpf_11 = e - o;
+ e = tmp1 - tmp1_;
+ o = (tmp1o - tmp1_o) * 1.931851653f;
+ tmpf_7 = e + o;
+ tmpf_10 = e - o;
+ e = tmp0 - tmp0_;
+ o = (tmp0o - tmp0_o) * 5.736856623f;
+ tmpf_8 = e + o;
+ tmpf_9 = e - o;
+
+ // end 36 point IDCT */
+ // shift to modified IDCT
+ // win_bt = win[block_type]; //substituted this so that a new area does
+ // not become created
+
+ rawout[0] = -tmpf_9 * win[block_type][0];
+ rawout[1] = -tmpf_10 * win[block_type][1];
+ rawout[2] = -tmpf_11 * win[block_type][2];
+ rawout[3] = -tmpf_12 * win[block_type][3];
+ rawout[4] = -tmpf_13 * win[block_type][4];
+ rawout[5] = -tmpf_14 * win[block_type][5];
+ rawout[6] = -tmpf_15 * win[block_type][6];
+ rawout[7] = -tmpf_16 * win[block_type][7];
+ rawout[8] = -tmpf_17 * win[block_type][8];
+ rawout[9] = tmpf_17 * win[block_type][9];
+ rawout[10] = tmpf_16 * win[block_type][10];
+ rawout[11] = tmpf_15 * win[block_type][11];
+ rawout[12] = tmpf_14 * win[block_type][12];
+ rawout[13] = tmpf_13 * win[block_type][13];
+ rawout[14] = tmpf_12 * win[block_type][14];
+ rawout[15] = tmpf_11 * win[block_type][15];
+ rawout[16] = tmpf_10 * win[block_type][16];
+ rawout[17] = tmpf_9 * win[block_type][17];
+ rawout[18] = tmpf_8 * win[block_type][18];
+ rawout[19] = tmpf_7 * win[block_type][19];
+ rawout[20] = tmpf_6 * win[block_type][20];
+ rawout[21] = tmpf_5 * win[block_type][21];
+ rawout[22] = tmpf_4 * win[block_type][22];
+ rawout[23] = tmpf_3 * win[block_type][23];
+ rawout[24] = tmpf_2 * win[block_type][24];
+ rawout[25] = tmpf_1 * win[block_type][25];
+ rawout[26] = tmpf_0 * win[block_type][26];
+ rawout[27] = tmpf_0 * win[block_type][27];
+ rawout[28] = tmpf_1 * win[block_type][28];
+ rawout[29] = tmpf_2 * win[block_type][29];
+ rawout[30] = tmpf_3 * win[block_type][30];
+ rawout[31] = tmpf_4 * win[block_type][31];
+ rawout[32] = tmpf_5 * win[block_type][32];
+ rawout[33] = tmpf_6 * win[block_type][33];
+ rawout[34] = tmpf_7 * win[block_type][34];
+ rawout[35] = tmpf_8 * win[block_type][35];
+ }
+
+ }
+
+
+ private int counter = 0;
+ private static final int SSLIMIT = 18;
+ private static final int SBLIMIT = 32;
+
+ // Size of the table of whole numbers raised to 4/3 power.
+ // This may be adjusted for performance without any problems.
+ // public static final int POW_TABLE_LIMIT=512;
+
+ private static final int slen[][] = { { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
+ { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 } };
+
+ public static final int pretab[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3,
+ 2, 0 };
+
+
+ private SBI[] sfBandIndex; // Init in the constructor.
+
+ public static final float two_to_negative_half_pow[] = { 1.0000000000E+00f, 7.0710678119E-01f,
+ 5.0000000000E-01f, 3.5355339059E-01f, 2.5000000000E-01f, 1.7677669530E-01f,
+ 1.2500000000E-01f, 8.8388347648E-02f, 6.2500000000E-02f, 4.4194173824E-02f,
+ 3.1250000000E-02f, 2.2097086912E-02f, 1.5625000000E-02f, 1.1048543456E-02f,
+ 7.8125000000E-03f, 5.5242717280E-03f, 3.9062500000E-03f, 2.7621358640E-03f,
+ 1.9531250000E-03f, 1.3810679320E-03f, 9.7656250000E-04f, 6.9053396600E-04f,
+ 4.8828125000E-04f, 3.4526698300E-04f, 2.4414062500E-04f, 1.7263349150E-04f,
+ 1.2207031250E-04f, 8.6316745750E-05f, 6.1035156250E-05f, 4.3158372875E-05f,
+ 3.0517578125E-05f, 2.1579186438E-05f, 1.5258789062E-05f, 1.0789593219E-05f,
+ 7.6293945312E-06f, 5.3947966094E-06f, 3.8146972656E-06f, 2.6973983047E-06f,
+ 1.9073486328E-06f, 1.3486991523E-06f, 9.5367431641E-07f, 6.7434957617E-07f,
+ 4.7683715820E-07f, 3.3717478809E-07f, 2.3841857910E-07f, 1.6858739404E-07f,
+ 1.1920928955E-07f, 8.4293697022E-08f, 5.9604644775E-08f, 4.2146848511E-08f,
+ 2.9802322388E-08f, 2.1073424255E-08f, 1.4901161194E-08f, 1.0536712128E-08f,
+ 7.4505805969E-09f, 5.2683560639E-09f, 3.7252902985E-09f, 2.6341780319E-09f,
+ 1.8626451492E-09f, 1.3170890160E-09f, 9.3132257462E-10f, 6.5854450798E-10f,
+ 4.6566128731E-10f, 3.2927225399E-10f };
+
+ public static final float t_43[] = create_t_43();
+
+
+ static private float[] create_t_43() {
+ float[] t43 = new float[8192];
+ final double d43 = (4.0 / 3.0);
+
+ for ( int i = 0; i < 8192; i++) {
+ t43[i] = (float) Math.pow(i, d43);
+ }
+ return t43;
+ }
+
+ public static final float io[][] = {
+ { 1.0000000000E+00f, 8.4089641526E-01f, 7.0710678119E-01f, 5.9460355751E-01f,
+ 5.0000000001E-01f, 4.2044820763E-01f, 3.5355339060E-01f, 2.9730177876E-01f,
+ 2.5000000001E-01f, 2.1022410382E-01f, 1.7677669530E-01f, 1.4865088938E-01f,
+ 1.2500000000E-01f, 1.0511205191E-01f, 8.8388347652E-02f, 7.4325444691E-02f,
+ 6.2500000003E-02f, 5.2556025956E-02f, 4.4194173826E-02f, 3.7162722346E-02f,
+ 3.1250000002E-02f, 2.6278012978E-02f, 2.2097086913E-02f, 1.8581361173E-02f,
+ 1.5625000001E-02f, 1.3139006489E-02f, 1.1048543457E-02f, 9.2906805866E-03f,
+ 7.8125000006E-03f, 6.5695032447E-03f, 5.5242717285E-03f, 4.6453402934E-03f },
+ { 1.0000000000E+00f, 7.0710678119E-01f, 5.0000000000E-01f, 3.5355339060E-01f,
+ 2.5000000000E-01f, 1.7677669530E-01f, 1.2500000000E-01f, 8.8388347650E-02f,
+ 6.2500000001E-02f, 4.4194173825E-02f, 3.1250000001E-02f, 2.2097086913E-02f,
+ 1.5625000000E-02f, 1.1048543456E-02f, 7.8125000002E-03f, 5.5242717282E-03f,
+ 3.9062500001E-03f, 2.7621358641E-03f, 1.9531250001E-03f, 1.3810679321E-03f,
+ 9.7656250004E-04f, 6.9053396603E-04f, 4.8828125002E-04f, 3.4526698302E-04f,
+ 2.4414062501E-04f, 1.7263349151E-04f, 1.2207031251E-04f, 8.6316745755E-05f,
+ 6.1035156254E-05f, 4.3158372878E-05f, 3.0517578127E-05f, 2.1579186439E-05f } };
+
+ public static final float TAN12[] = { 0.0f, 0.26794919f, 0.57735027f, 1.0f, 1.73205081f,
+ 3.73205081f, 9.9999999e10f, -3.73205081f, -1.73205081f, -1.0f, -0.57735027f, -0.26794919f,
+ 0.0f, 0.26794919f, 0.57735027f, 1.0f };
+
+ // REVIEW: in java, the array lookup may well be slower than
+ // the actual calculation
+ // 576 / 18
+ /*
+ * private static final int ss_div[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ * 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ * 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
+ * 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ * 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6,
+ * 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ * 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ * 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10,
+ * 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
+ * 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12,
+ * 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
+ * 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ * 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ * 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ * 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ * 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+ * 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+ * 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ * 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+ * 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
+ * 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+ * 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25,
+ * 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26,
+ * 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27,
+ * 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
+ * 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
+ * 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30,
+ * 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31,
+ * 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31 };
+ *
+ * // 576 % 18 private static final int ss_mod[] = { 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
+ * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
+ * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
+ * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
+ * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ * 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3,
+ * 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7,
+ * 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ * 12, 13, 14, 15, 16, 17 };
+ */
+
+ private static/* final */int reorder_table[][]/* = loadReorderTable() */; // SZD:
+
+ // will
+ // be
+ // generated
+ // on
+ // demand
+
+ /**
+ * Loads the data for the reorder
+ */
+ /*
+ * private static int[][] loadReorderTable() // SZD: table will be generated {
+ * try { Class elemType = int[][].class.getComponentType(); Object o =
+ * JavaLayerUtils.deserializeArrayResource("l3reorder.ser", elemType, 6);
+ * return (int[][])o; } catch (IOException ex) { throw new
+ * ExceptionInInitializerError(ex); } }
+ */
+
+ static int[] reorder( int scalefac_band[]) { // SZD: converted from
+ // LAME
+ int j = 0;
+ int ix[] = new int[576];
+ for (int sfb = 0; sfb < 13; sfb++) {
+ int start = scalefac_band[sfb];
+ int end = scalefac_band[sfb + 1];
+ for (int window = 0; window < 3; window++)
+ for (int i = start; i < end; i++)
+ ix[3 * i + window] = j++;
+ }
+ return ix;
+ }
+
+ /*
+ * static final int reorder_table_data[][]; = { { 0, 4, 8, 1, 5, 9, 2, 6, 10,
+ * 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19, 23, 24, 28, 32, 25,
+ * 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49, 38, 44, 50, 39, 45,
+ * 51, 40, 46, 52, 41, 47, 53, 54, 60, 66, 55, 61, 67, 56, 62, 68, 57, 63, 69,
+ * 58, 64, 70, 59, 65, 71, 72, 80, 88, 73, 81, 89, 74, 82, 90, 75, 83, 91, 76,
+ * 84, 92, 77, 85, 93, 78, 86, 94, 79, 87, 95, 96,106,116, 97,107,117,
+ * 98,108,118, 99,109,119,100,110,120,101,
+ * 111,121,102,112,122,103,113,123,104,114,124,105,115,125,126,140,
+ * 154,127,141,155,128,142,156,129,143,157,130,144,158,131,145,159,
+ * 132,146,160,133,147,161,134,148,162,135,149,163,136,150,164,137,
+ * 151,165,138,152,166,139,153,167,168,186,204,169,187,205,170,188,
+ * 206,171,189,207,172,190,208,173,191,209,174,192,210,175,193,211,
+ * 176,194,212,177,195,213,178,196,214,179,197,215,180,198,216,181,
+ * 199,217,182,200,218,183,201,219,184,202,220,185,203,221,222,248,
+ * 274,223,249,275,224,250,276,225,251,277,226,252,278,227,253,279,
+ * 228,254,280,229,255,281,230,256,282,231,257,283,232,258,284,233,
+ * 259,285,234,260,286,235,261,287,236,262,288,237,263,289,238,264,
+ * 290,239,265,291,240,266,292,241,267,293,242,268,294,243,269,295,
+ * 244,270,296,245,271,297,246,272,298,247,273,299,300,332,364,301,
+ * 333,365,302,334,366,303,335,367,304,336,368,305,337,369,306,338,
+ * 370,307,339,371,308,340,372,309,341,373,310,342,374,311,343,375,
+ * 312,344,376,313,345,377,314,346,378,315,347,379,316,348,380,317,
+ * 349,381,318,350,382,319,351,383,320,352,384,321,353,385,322,354,
+ * 386,323,355,387,324,356,388,325,357,389,326,358,390,327,359,391,
+ * 328,360,392,329,361,393,330,362,394,331,363,395,396,438,480,397,
+ * 439,481,398,440,482,399,441,483,400,442,484,401,443,485,402,444,
+ * 486,403,445,487,404,446,488,405,447,489,406,448,490,407,449,491,
+ * 408,450,492,409,451,493,410,452,494,411,453,495,412,454,496,413,
+ * 455,497,414,456,498,415,457,499,416,458,500,417,459,501,418,460,
+ * 502,419,461,503,420,462,504,421,463,505,422,464,506,423,465,507,
+ * 424,466,508,425,467,509,426,468,510,427,469,511,428,470,512,429,
+ * 471,513,430,472,514,431,473,515,432,474,516,433,475,517,434,476,
+ * 518,435,477,519,436,478,520,437,479,521,522,540,558,523,541,559,
+ * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
+ * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
+ * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
+ * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
+ * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
+ * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
+ * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
+ * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
+ * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
+ * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
+ * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
+ * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
+ * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
+ * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
+ * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
+ * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
+ * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
+ * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
+ * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
+ * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
+ * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
+ * 285,309,262,286,310,263,287,311,312,344,376,313,345,377,314,346,
+ * 378,315,347,379,316,348,380,317,349,381,318,350,382,319,351,383,
+ * 320,352,384,321,353,385,322,354,386,323,355,387,324,356,388,325,
+ * 357,389,326,358,390,327,359,391,328,360,392,329,361,393,330,362,
+ * 394,331,363,395,332,364,396,333,365,397,334,366,398,335,367,399,
+ * 336,368,400,337,369,401,338,370,402,339,371,403,340,372,404,341,
+ * 373,405,342,374,406,343,375,407,408,452,496,409,453,497,410,454,
+ * 498,411,455,499,412,456,500,413,457,501,414,458,502,415,459,503,
+ * 416,460,504,417,461,505,418,462,506,419,463,507,420,464,508,421,
+ * 465,509,422,466,510,423,467,511,424,468,512,425,469,513,426,470,
+ * 514,427,471,515,428,472,516,429,473,517,430,474,518,431,475,519,
+ * 432,476,520,433,477,521,434,478,522,435,479,523,436,480,524,437,
+ * 481,525,438,482,526,439,483,527,440,484,528,441,485,529,442,486,
+ * 530,443,487,531,444,488,532,445,489,533,446,490,534,447,491,535,
+ * 448,492,536,449,493,537,450,494,538,451,495,539,540,552,564,541,
+ * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
+ * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575}, { 0, 4,
+ * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
+ * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 42, 48, 37, 43, 49,
+ * 38, 44, 50, 39, 45, 51, 40, 46, 52, 41, 47, 53, 54, 62, 70, 55, 63, 71, 56,
+ * 64, 72, 57, 65, 73, 58, 66, 74, 59, 67, 75, 60, 68, 76, 61, 69, 77, 78, 88,
+ * 98, 79, 89, 99, 80, 90,100, 81, 91,101, 82, 92,102, 83, 93,103, 84, 94,104,
+ * 85, 95,105, 86, 96,106, 87, 97,107,108,120,132,109,
+ * 121,133,110,122,134,111,123,135,112,124,136,113,125,137,114,126,
+ * 138,115,127,139,116,128,140,117,129,141,118,130,142,119,131,143,
+ * 144,158,172,145,159,173,146,160,174,147,161,175,148,162,176,149,
+ * 163,177,150,164,178,151,165,179,152,166,180,153,167,181,154,168,
+ * 182,155,169,183,156,170,184,157,171,185,186,204,222,187,205,223,
+ * 188,206,224,189,207,225,190,208,226,191,209,227,192,210,228,193,
+ * 211,229,194,212,230,195,213,231,196,214,232,197,215,233,198,216,
+ * 234,199,217,235,200,218,236,201,219,237,202,220,238,203,221,239,
+ * 240,264,288,241,265,289,242,266,290,243,267,291,244,268,292,245,
+ * 269,293,246,270,294,247,271,295,248,272,296,249,273,297,250,274,
+ * 298,251,275,299,252,276,300,253,277,301,254,278,302,255,279,303,
+ * 256,280,304,257,281,305,258,282,306,259,283,307,260,284,308,261,
+ * 285,309,262,286,310,263,287,311,312,342,372,313,343,373,314,344,
+ * 374,315,345,375,316,346,376,317,347,377,318,348,378,319,349,379,
+ * 320,350,380,321,351,381,322,352,382,323,353,383,324,354,384,325,
+ * 355,385,326,356,386,327,357,387,328,358,388,329,359,389,330,360,
+ * 390,331,361,391,332,362,392,333,363,393,334,364,394,335,365,395,
+ * 336,366,396,337,367,397,338,368,398,339,369,399,340,370,400,341,
+ * 371,401,402,442,482,403,443,483,404,444,484,405,445,485,406,446,
+ * 486,407,447,487,408,448,488,409,449,489,410,450,490,411,451,491,
+ * 412,452,492,413,453,493,414,454,494,415,455,495,416,456,496,417,
+ * 457,497,418,458,498,419,459,499,420,460,500,421,461,501,422,462,
+ * 502,423,463,503,424,464,504,425,465,505,426,466,506,427,467,507,
+ * 428,468,508,429,469,509,430,470,510,431,471,511,432,472,512,433,
+ * 473,513,434,474,514,435,475,515,436,476,516,437,477,517,438,478,
+ * 518,439,479,519,440,480,520,441,481,521,522,540,558,523,541,559,
+ * 524,542,560,525,543,561,526,544,562,527,545,563,528,546,564,529,
+ * 547,565,530,548,566,531,549,567,532,550,568,533,551,569,534,552,
+ * 570,535,553,571,536,554,572,537,555,573,538,556,574,539,557,575}, { 0, 4,
+ * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
+ * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
+ * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
+ * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
+ * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,100,110, 91,101,111, 92,102,112,
+ * 93,103,113, 94,104,114, 95,105,115, 96,106,116, 97, 107,117, 98,108,118,
+ * 99,109,119,120,132,144,121,133,145,122,134,
+ * 146,123,135,147,124,136,148,125,137,149,126,138,150,127,139,151,
+ * 128,140,152,129,141,153,130,142,154,131,143,155,156,170,184,157,
+ * 171,185,158,172,186,159,173,187,160,174,188,161,175,189,162,176,
+ * 190,163,177,191,164,178,192,165,179,193,166,180,194,167,181,195,
+ * 168,182,196,169,183,197,198,216,234,199,217,235,200,218,236,201,
+ * 219,237,202,220,238,203,221,239,204,222,240,205,223,241,206,224,
+ * 242,207,225,243,208,226,244,209,227,245,210,228,246,211,229,247,
+ * 212,230,248,213,231,249,214,232,250,215,233,251,252,274,296,253,
+ * 275,297,254,276,298,255,277,299,256,278,300,257,279,301,258,280,
+ * 302,259,281,303,260,282,304,261,283,305,262,284,306,263,285,307,
+ * 264,286,308,265,287,309,266,288,310,267,289,311,268,290,312,269,
+ * 291,313,270,292,314,271,293,315,272,294,316,273,295,317,318,348,
+ * 378,319,349,379,320,350,380,321,351,381,322,352,382,323,353,383,
+ * 324,354,384,325,355,385,326,356,386,327,357,387,328,358,388,329,
+ * 359,389,330,360,390,331,361,391,332,362,392,333,363,393,334,364,
+ * 394,335,365,395,336,366,396,337,367,397,338,368,398,339,369,399,
+ * 340,370,400,341,371,401,342,372,402,343,373,403,344,374,404,345,
+ * 375,405,346,376,406,347,377,407,408,464,520,409,465,521,410,466,
+ * 522,411,467,523,412,468,524,413,469,525,414,470,526,415,471,527,
+ * 416,472,528,417,473,529,418,474,530,419,475,531,420,476,532,421,
+ * 477,533,422,478,534,423,479,535,424,480,536,425,481,537,426,482,
+ * 538,427,483,539,428,484,540,429,485,541,430,486,542,431,487,543,
+ * 432,488,544,433,489,545,434,490,546,435,491,547,436,492,548,437,
+ * 493,549,438,494,550,439,495,551,440,496,552,441,497,553,442,498,
+ * 554,443,499,555,444,500,556,445,501,557,446,502,558,447,503,559,
+ * 448,504,560,449,505,561,450,506,562,451,507,563,452,508,564,453,
+ * 509,565,454,510,566,455,511,567,456,512,568,457,513,569,458,514,
+ * 570,459,515,571,460,516,572,461,517,573,462,518,574,463,519,575}, { 0, 4,
+ * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
+ * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
+ * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
+ * 58, 64, 53, 59, 65, 66, 72, 78, 67, 73, 79, 68, 74, 80, 69, 75, 81, 70, 76,
+ * 82, 71, 77, 83, 84, 94,104, 85, 95,105, 86, 96,106, 87, 97,107, 88, 98,108,
+ * 89, 99,109, 90,100,110, 91,101,111, 92,102,112, 93,
+ * 103,113,114,126,138,115,127,139,116,128,140,117,129,141,118,130,
+ * 142,119,131,143,120,132,144,121,133,145,122,134,146,123,135,147,
+ * 124,136,148,125,137,149,150,164,178,151,165,179,152,166,180,153,
+ * 167,181,154,168,182,155,169,183,156,170,184,157,171,185,158,172,
+ * 186,159,173,187,160,174,188,161,175,189,162,176,190,163,177,191,
+ * 192,208,224,193,209,225,194,210,226,195,211,227,196,212,228,197,
+ * 213,229,198,214,230,199,215,231,200,216,232,201,217,233,202,218,
+ * 234,203,219,235,204,220,236,205,221,237,206,222,238,207,223,239,
+ * 240,260,280,241,261,281,242,262,282,243,263,283,244,264,284,245,
+ * 265,285,246,266,286,247,267,287,248,268,288,249,269,289,250,270,
+ * 290,251,271,291,252,272,292,253,273,293,254,274,294,255,275,295,
+ * 256,276,296,257,277,297,258,278,298,259,279,299,300,326,352,301,
+ * 327,353,302,328,354,303,329,355,304,330,356,305,331,357,306,332,
+ * 358,307,333,359,308,334,360,309,335,361,310,336,362,311,337,363,
+ * 312,338,364,313,339,365,314,340,366,315,341,367,316,342,368,317,
+ * 343,369,318,344,370,319,345,371,320,346,372,321,347,373,322,348,
+ * 374,323,349,375,324,350,376,325,351,377,378,444,510,379,445,511,
+ * 380,446,512,381,447,513,382,448,514,383,449,515,384,450,516,385,
+ * 451,517,386,452,518,387,453,519,388,454,520,389,455,521,390,456,
+ * 522,391,457,523,392,458,524,393,459,525,394,460,526,395,461,527,
+ * 396,462,528,397,463,529,398,464,530,399,465,531,400,466,532,401,
+ * 467,533,402,468,534,403,469,535,404,470,536,405,471,537,406,472,
+ * 538,407,473,539,408,474,540,409,475,541,410,476,542,411,477,543,
+ * 412,478,544,413,479,545,414,480,546,415,481,547,416,482,548,417,
+ * 483,549,418,484,550,419,485,551,420,486,552,421,487,553,422,488,
+ * 554,423,489,555,424,490,556,425,491,557,426,492,558,427,493,559,
+ * 428,494,560,429,495,561,430,496,562,431,497,563,432,498,564,433,
+ * 499,565,434,500,566,435,501,567,436,502,568,437,503,569,438,504,
+ * 570,439,505,571,440,506,572,441,507,573,442,508,574,443,509,575}, { 0, 4,
+ * 8, 1, 5, 9, 2, 6, 10, 3, 7, 11, 12, 16, 20, 13, 17, 21, 14, 18, 22, 15, 19,
+ * 23, 24, 28, 32, 25, 29, 33, 26, 30, 34, 27, 31, 35, 36, 40, 44, 37, 41, 45,
+ * 38, 42, 46, 39, 43, 47, 48, 54, 60, 49, 55, 61, 50, 56, 62, 51, 57, 63, 52,
+ * 58, 64, 53, 59, 65, 66, 74, 82, 67, 75, 83, 68, 76, 84, 69, 77, 85, 70, 78,
+ * 86, 71, 79, 87, 72, 80, 88, 73, 81, 89, 90,102,114, 91,103,115, 92,104,116,
+ * 93,105,117, 94,106,118, 95,107,119, 96,108,120, 97, 109,121, 98,110,122,
+ * 99,111,123,100,112,124,101,113,125,126,142,
+ * 158,127,143,159,128,144,160,129,145,161,130,146,162,131,147,163,
+ * 132,148,164,133,149,165,134,150,166,135,151,167,136,152,168,137,
+ * 153,169,138,154,170,139,155,171,140,156,172,141,157,173,174,194,
+ * 214,175,195,215,176,196,216,177,197,217,178,198,218,179,199,219,
+ * 180,200,220,181,201,221,182,202,222,183,203,223,184,204,224,185,
+ * 205,225,186,206,226,187,207,227,188,208,228,189,209,229,190,210,
+ * 230,191,211,231,192,212,232,193,213,233,234,260,286,235,261,287,
+ * 236,262,288,237,263,289,238,264,290,239,265,291,240,266,292,241,
+ * 267,293,242,268,294,243,269,295,244,270,296,245,271,297,246,272,
+ * 298,247,273,299,248,274,300,249,275,301,250,276,302,251,277,303,
+ * 252,278,304,253,279,305,254,280,306,255,281,307,256,282,308,257,
+ * 283,309,258,284,310,259,285,311,312,346,380,313,347,381,314,348,
+ * 382,315,349,383,316,350,384,317,351,385,318,352,386,319,353,387,
+ * 320,354,388,321,355,389,322,356,390,323,357,391,324,358,392,325,
+ * 359,393,326,360,394,327,361,395,328,362,396,329,363,397,330,364,
+ * 398,331,365,399,332,366,400,333,367,401,334,368,402,335,369,403,
+ * 336,370,404,337,371,405,338,372,406,339,373,407,340,374,408,341,
+ * 375,409,342,376,410,343,377,411,344,378,412,345,379,413,414,456,
+ * 498,415,457,499,416,458,500,417,459,501,418,460,502,419,461,503,
+ * 420,462,504,421,463,505,422,464,506,423,465,507,424,466,508,425,
+ * 467,509,426,468,510,427,469,511,428,470,512,429,471,513,430,472,
+ * 514,431,473,515,432,474,516,433,475,517,434,476,518,435,477,519,
+ * 436,478,520,437,479,521,438,480,522,439,481,523,440,482,524,441,
+ * 483,525,442,484,526,443,485,527,444,486,528,445,487,529,446,488,
+ * 530,447,489,531,448,490,532,449,491,533,450,492,534,451,493,535,
+ * 452,494,536,453,495,537,454,496,538,455,497,539,540,552,564,541,
+ * 553,565,542,554,566,543,555,567,544,556,568,545,557,569,546,558,
+ * 570,547,559,571,548,560,572,549,561,573,550,562,574,551,563,575} };
+ */
+
+ private static final float cs[] = { 0.857492925712f, 0.881741997318f, 0.949628649103f,
+ 0.983314592492f, 0.995517816065f, 0.999160558175f, 0.999899195243f, 0.999993155067f };
+
+ private static final float ca[] = { -0.5144957554270f, -0.4717319685650f, -0.3133774542040f,
+ -0.1819131996110f, -0.0945741925262f, -0.0409655828852f, -0.0141985685725f,
+ -0.00369997467375f };
+
+ /************************************************************/
+ /* END OF L3TABLE */
+ /************************************************************/
+
+ /************************************************************/
+ /* L3TYPE */
+ /************************************************************/
+
+ /***************************************************************/
+ /* END OF L3TYPE */
+ /***************************************************************/
+
+ /***************************************************************/
+ /* INV_MDCT */
+ /***************************************************************/
+ public static final float win[][] = {
+ { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
+ -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
+ -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
+ -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
+ -4.0715656898E-01f, -3.6969460527E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
+ -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
+ -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
+ -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
+ -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f },
+
+ { -1.6141214951E-02f, -5.3603178919E-02f, -1.0070713296E-01f, -1.6280817573E-01f,
+ -4.9999999679E-01f, -3.8388735032E-01f, -6.2061144372E-01f, -1.1659756083E+00f,
+ -3.8720752656E+00f, -4.2256286556E+00f, -1.5195289984E+00f, -9.7416483388E-01f,
+ -7.3744074053E-01f, -1.2071067773E+00f, -5.1636156596E-01f, -4.5426052317E-01f,
+ -4.0715656898E-01f, -3.6969460527E-01f, -3.3908542600E-01f, -3.1511810350E-01f,
+ -2.9642226150E-01f, -2.8184548650E-01f, -5.4119610000E-01f, -2.6213228100E-01f,
+ -2.5387916537E-01f, -2.3296291359E-01f, -1.9852728987E-01f, -1.5233534808E-01f,
+ -9.6496400054E-02f, -3.3423828516E-02f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
+
+ { -4.8300800645E-02f, -1.5715656932E-01f, -2.8325045177E-01f, -4.2953747763E-01f,
+ -1.2071067795E+00f, -8.2426483178E-01f, -1.1451749106E+00f, -1.7695290101E+00f,
+ -4.5470225061E+00f, -3.4890531002E+00f, -7.3296292804E-01f, -1.5076514758E-01f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f },
+
+ { 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f, 0.0000000000E+00f,
+ 0.0000000000E+00f, 0.0000000000E+00f, -1.5076513660E-01f, -7.3296291107E-01f,
+ -3.4890530566E+00f, -4.5470224727E+00f, -1.7695290031E+00f, -1.1451749092E+00f,
+ -8.3137738100E-01f, -1.3065629650E+00f, -5.4142014250E-01f, -4.6528974900E-01f,
+ -4.1066990750E-01f, -3.7004680800E-01f, -3.3876269197E-01f, -3.1242222492E-01f,
+ -2.8939587111E-01f, -2.6880081906E-01f, -5.0000000266E-01f, -2.3251417468E-01f,
+ -2.1596714708E-01f, -2.0004979098E-01f, -1.8449493497E-01f, -1.6905846094E-01f,
+ -1.5350360518E-01f, -1.3758624925E-01f, -1.2103922149E-01f, -2.0710679058E-01f,
+ -8.4752577594E-02f, -6.4157525656E-02f, -4.1131172614E-02f, -1.4790705759E-02f } };
+
+ /***************************************************************/
+ /* END OF INV_MDCT */
+ /***************************************************************/
+
+ public static final int nr_of_sfb_block[][][] = {
+ { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } },
+ { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } },
+ { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } },
+ { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } },
+ { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } },
+ { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } } };
+
+}
+
+/************************************************************/
+/* L3TABLE */
+/************************************************************/
+
+
+class SBI {
+
+ public int[] l;
+
+ public int[] s;
+
+ public SBI() {
+ l = new int[23];
+ s = new int[14];
+ }
+
+
+ public SBI(@DELEGATE int[] thel, @DELEGATE int[] thes) {
+ l = thel;
+ s = thes;
+ }
+}
+
+
+class gr_info_s {
+
+ public int part2_3_length = 0;
+
+ public int big_values = 0;
+
+ public int global_gain = 0;
+
+ public int scalefac_compress = 0;
+
+ public int window_switching_flag = 0;
+
+ public int block_type = 0;
+
+ public int mixed_block_flag = 0;
+
+ public int[] table_select;
+
+ public int[] subblock_gain;
+
+ public int region0_count = 0;
+
+ public int region1_count = 0;
+
+ public int preflag = 0;
+
+ public int scalefac_scale = 0;
+
+ public int count1table_select = 0;
+
+ /**
+ * Dummy Constructor
+ */
+ public gr_info_s() {
+ table_select = new int[3];
+ subblock_gain = new int[3];
+ }
+}
+
+
+class temporaire {
+
+ public int[] scfsi;
+
+ public gr_info_s[] gr;
+
+ /**
+ * Dummy Constructor
+ */
+ public temporaire() {
+ scfsi = new int[4];
+ gr = new gr_info_s[2];
+ gr[0] = new gr_info_s();
+ gr[1] = new gr_info_s();
+ }
+}
+
+
+class III_side_info_t {
+
+
+ public int main_data_begin = 0;
+
+ public int private_bits = 0;
+
+ public temporaire[] ch;
+
+ /**
+ * Dummy Constructor
+ */
+ public III_side_info_t() {
+ ch = new temporaire[2];
+ ch[0] = new temporaire();
+ ch[1] = new temporaire();
+ }
+}
+
+
+class temporaire2 {
+
+ public int[] l; /* [cb] */
+
+ public int[][] s; /* [window][cb] */
+
+ /**
+ * Dummy Constructor
+ */
+ public temporaire2() {
+ l = new int[23];
+ s = new int[3][13];
+ }
+}
+
+// class III_scalefac_t
+// {
+// public temporaire2[] tab;
+// /**
+// * Dummy Constructor
+// */
+// public III_scalefac_t()
+// {
+// tab = new temporaire2[2];
+// }
+// }