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| author | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
|---|---|---|
| committer | Björn Stenberg <bjorn@haxx.se> | 2007-01-08 23:53:00 +0000 |
| commit | 7039a05147b8bbfc829babea1c65bd436450b505 (patch) | |
| tree | 4ba555eb84ed97b72b0575034d5b0530a393713e /songdbj/javazoom/jl/decoder/LayerIIIDecoder.java | |
| parent | 6d4c19707ef95942e323cbdc89fbbfdbe45e7cc5 (diff) | |
| download | rockbox-7039a05147b8bbfc829babea1c65bd436450b505.zip rockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.gz rockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.bz2 rockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.xz | |
Splitting out songdbj
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11953 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'songdbj/javazoom/jl/decoder/LayerIIIDecoder.java')
| -rw-r--r-- | songdbj/javazoom/jl/decoder/LayerIIIDecoder.java | 2439 |
1 files changed, 0 insertions, 2439 deletions
diff --git a/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java b/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java deleted file mode 100644 index 602badf..0000000 --- a/songdbj/javazoom/jl/decoder/LayerIIIDecoder.java +++ /dev/null @@ -1,2439 +0,0 @@ -/* - * 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. - *---------------------------------------------------------------------- - */ - -package javazoom.jl.decoder; - -/** - * Class Implementing Layer 3 Decoder. - * - * @since 0.0 - */ -final class LayerIIIDecoder implements FrameDecoder -{ - 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[] out_1d; - private float[][] prevblck; - private float[][] k; - private int[] nonzero; - private Bitstream stream; - private Header header; - private SynthesisFilter filter1, filter2; - private Obuffer buffer; - private int which_channels; - private BitReserve br; - private III_side_info_t si; - - private temporaire2[] III_scalefac_t; - private temporaire2[] scalefac; - // private III_scalefac_t scalefac; - - private int max_gr; - private int frame_start; - private int part2_start; - private int channels; - private int first_channel; - private int last_channel; - private int sfreq; - - - /** - * Constructor. - */ - // REVIEW: these constructor arguments should be moved to the - // decodeFrame() method, where possible, so that one - public LayerIIIDecoder(Bitstream stream0, Header header0, - SynthesisFilter filtera, SynthesisFilter filterb, - Obuffer buffer0, 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]; - - //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; - // 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 - - stream = stream0; - 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() - { - decode(); - } - - /** - * 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]; - - public void decode() - { - int nSlots = header.slots(); - int flush_main; - int gr, ch, ss, sb, sb18; - int main_data_end; - int bytes_to_discard; - int i; - - get_side_info(); - - for (i=0; i<nSlots; i++) - br.hputbuf(stream.get_bits(8)); - - main_data_end = br.hsstell() >>> 3; // of previous frame - - if ((flush_main = (br.hsstell() & 7)) != 0) { - br.hgetbits(8 - flush_main); - main_data_end++; - } - - bytes_to_discard = frame_start - main_data_end - - si.main_data_begin; - - frame_start += nSlots; - - if (bytes_to_discard < 0) - return; - - if (main_data_end > 4096) { - frame_start -= 4096; - br.rewindNbytes(4096); - } - - for (; bytes_to_discard > 0; bytes_to_discard--) - br.hgetbits(8); - - for (gr=0;gr<max_gr;gr++) { - - for (ch=0; ch<channels; ch++) { - part2_start = br.hsstell(); - - if (header.version() == Header.MPEG1) - get_scale_factors(ch, gr); - else // MPEG-2 LSF, SZD: MPEG-2.5 LSF - get_LSF_scale_factors(ch, gr); - - huffman_decode(ch, gr); - // System.out.println("CheckSum HuffMan = " + CheckSumHuff); - dequantize_sample(ro[ch], ch, gr); - } - - stereo(gr); - - if ((which_channels == OutputChannels.DOWNMIX_CHANNELS) && (channels > 1)) - do_downmix(); - - for (ch=first_channel; ch<=last_channel; ch++) { - - reorder(lr[ch], ch, gr); - antialias(ch, gr); - //for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d + out_1d[hb]; - //System.out.println("CheckSumOut1d = "+CheckSumOut1d); - - hybrid(ch, gr); - - //for (int hb = 0;hb<576;hb++) CheckSumOut1d = CheckSumOut1d + out_1d[hb]; - //System.out.println("CheckSumOut1d = "+CheckSumOut1d); - - for (sb18=18;sb18<576;sb18+=36) // Frequency inversion - for (ss=1;ss<SSLIMIT;ss+=2) - out_1d[sb18 + ss] = -out_1d[sb18 + ss]; - - 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]; - //filter1.input_sample(out_1d[sb18+ss], sb); - sb++; - } - filter1.input_samples(samples1); - filter1.calculate_pcm_samples(buffer); - } - } else { - for (ss=0;ss<SSLIMIT;ss++) { // Polyphase synthesis - sb = 0; - for (sb18=0; sb18<576; sb18+=18) { - samples2[sb] = out_1d[sb18+ss]; - //filter2.input_sample(out_1d[sb18+ss], sb); - sb++; - } - filter2.input_samples(samples2); - filter2.calculate_pcm_samples(buffer); - } - - } - } // channels - } // granule - - - // System.out.println("Counter = ................................."+counter); - //if (counter < 609) - //{ - counter++; - buffer.write_buffer(1); - //} - //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() - { - int ch, gr; - if (header.version() == Header.MPEG1) - { - - si.main_data_begin = stream.get_bits(9); - if (channels == 1) - si.private_bits = stream.get_bits(5); - else si.private_bits = stream.get_bits(3); - - for (ch=0; ch<channels; ch++) { - si.ch[ch].scfsi[0] = stream.get_bits(1); - si.ch[ch].scfsi[1] = stream.get_bits(1); - si.ch[ch].scfsi[2] = stream.get_bits(1); - si.ch[ch].scfsi[3] = stream.get_bits(1); - } - - for (gr=0; gr<2; gr++) { - for (ch=0; ch<channels; ch++) { - si.ch[ch].gr[gr].part2_3_length = stream.get_bits(12); - si.ch[ch].gr[gr].big_values = stream.get_bits(9); - si.ch[ch].gr[gr].global_gain = stream.get_bits(8); - si.ch[ch].gr[gr].scalefac_compress = stream.get_bits(4); - si.ch[ch].gr[gr].window_switching_flag = stream.get_bits(1); - if ((si.ch[ch].gr[gr].window_switching_flag) != 0) { - si.ch[ch].gr[gr].block_type = stream.get_bits(2); - si.ch[ch].gr[gr].mixed_block_flag = stream.get_bits(1); - - si.ch[ch].gr[gr].table_select[0] = stream.get_bits(5); - si.ch[ch].gr[gr].table_select[1] = stream.get_bits(5); - - si.ch[ch].gr[gr].subblock_gain[0] = stream.get_bits(3); - si.ch[ch].gr[gr].subblock_gain[1] = stream.get_bits(3); - si.ch[ch].gr[gr].subblock_gain[2] = stream.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] = stream.get_bits(5); - si.ch[ch].gr[gr].table_select[1] = stream.get_bits(5); - si.ch[ch].gr[gr].table_select[2] = stream.get_bits(5); - si.ch[ch].gr[gr].region0_count = stream.get_bits(4); - si.ch[ch].gr[gr].region1_count = stream.get_bits(3); - si.ch[ch].gr[gr].block_type = 0; - } - si.ch[ch].gr[gr].preflag = stream.get_bits(1); - si.ch[ch].gr[gr].scalefac_scale = stream.get_bits(1); - si.ch[ch].gr[gr].count1table_select = stream.get_bits(1); - } - } - - } else { // MPEG-2 LSF, SZD: MPEG-2.5 LSF - - si.main_data_begin = stream.get_bits(8); - if (channels == 1) - si.private_bits = stream.get_bits(1); - else si.private_bits = stream.get_bits(2); - - for (ch=0; ch<channels; ch++) { - - si.ch[ch].gr[0].part2_3_length = stream.get_bits(12); - si.ch[ch].gr[0].big_values = stream.get_bits(9); - si.ch[ch].gr[0].global_gain = stream.get_bits(8); - si.ch[ch].gr[0].scalefac_compress = stream.get_bits(9); - si.ch[ch].gr[0].window_switching_flag = stream.get_bits(1); - - if ((si.ch[ch].gr[0].window_switching_flag) != 0) { - - si.ch[ch].gr[0].block_type = stream.get_bits(2); - si.ch[ch].gr[0].mixed_block_flag = stream.get_bits(1); - si.ch[ch].gr[0].table_select[0] = stream.get_bits(5); - si.ch[ch].gr[0].table_select[1] = stream.get_bits(5); - - si.ch[ch].gr[0].subblock_gain[0] = stream.get_bits(3); - si.ch[ch].gr[0].subblock_gain[1] = stream.get_bits(3); - si.ch[ch].gr[0].subblock_gain[2] = stream.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] = stream.get_bits(5); - si.ch[ch].gr[0].table_select[1] = stream.get_bits(5); - si.ch[ch].gr[0].table_select[2] = stream.get_bits(5); - si.ch[ch].gr[0].region0_count = stream.get_bits(4); - si.ch[ch].gr[0].region1_count = stream.get_bits(3); - si.ch[ch].gr[0].block_type = 0; - } - - si.ch[ch].gr[0].scalefac_scale = stream.get_bits(1); - si.ch[ch].gr[0].count1table_select = stream.get_bits(1); - } // for(ch=0; ch<channels; ch++) - } // if (header.version() == MPEG1) - return true; - } - - /** - * - */ - private void get_scale_factors(int ch, int gr) - { - int sfb, window; - gr_info_s gr_info = (si.ch[ch].gr[gr]); - int scale_comp = gr_info.scalefac_compress; - int length0 = slen[0][scale_comp]; - int length1 = slen[1][scale_comp]; - - if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { - if ((gr_info.mixed_block_flag) != 0) { // MIXED - for (sfb = 0; sfb < 8; sfb++) - scalefac[ch].l[sfb] = br.hgetbits( - slen[0][gr_info.scalefac_compress]); - for (sfb = 3; sfb < 6; sfb++) - for (window=0; window<3; window++) - scalefac[ch].s[window][sfb] = br.hgetbits( - slen[0][gr_info.scalefac_compress]); - for (sfb = 6; sfb < 12; sfb++) - for (window=0; window<3; window++) - scalefac[ch].s[window][sfb] = br.hgetbits( - slen[1][gr_info.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 final int[] new_slen = new int[4]; - - private void get_LSF_scale_data(int ch, int gr) - { - - int scalefac_comp, int_scalefac_comp; - int mode_ext = header.mode_extension(); - int m; - int blocktypenumber; - int blocknumber = 0; - - gr_info_s gr_info = (si.ch[ch].gr[gr]); - - scalefac_comp = gr_info.scalefac_compress; - - if (gr_info.block_type == 2) { - if (gr_info.mixed_block_flag == 0) - blocktypenumber = 1; - else if (gr_info.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++) { - for (int j = 0; j < nr_of_sfb_block[blocknumber][blocktypenumber][i]; - 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(int ch, int gr) - { - int m = 0; - int sfb, window; - gr_info_s gr_info = (si.ch[ch].gr[gr]); - - get_LSF_scale_data(ch, gr); - - if ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { - if (gr_info.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}; - private void huffman_decode(int ch, int gr) - { - x[0] = 0; - y[0] = 0; - v[0] = 0; - w[0] = 0; - - int part2_3_end = part2_start + si.ch[ch].gr[gr].part2_3_length; - int num_bits; - int region1Start; - int region2Start; - int index; - - int buf, buf1; - - huffcodetab h; - - // 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 - for (int i=0; i<(si.ch[ch].gr[gr].big_values<<1); i+=2) { - if (i<region1Start) h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[0]]; - else if (i<region2Start) h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[1]]; - else h = huffcodetab.ht[si.ch[ch].gr[gr].table_select[2]]; - - huffcodetab.huffman_decoder(h, 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 - h = huffcodetab.ht[si.ch[ch].gr[gr].count1table_select+32]; - num_bits = br.hsstell(); - - while ((num_bits < part2_3_end) && (index < 576)) { - - huffcodetab.huffman_decoder(h, 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 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]; - } - } - - /** - * - */ - private void dequantize_sample(float xr[][], int ch, int gr) - { - gr_info_s gr_info = (si.ch[ch].gr[gr]); - int cb=0; - int next_cb_boundary; - int cb_begin = 0; - int cb_width = 0; - int index=0, t_index, j; - float g_gain; - float[][] xr_1d = xr; - - // choose correct scalefactor band per block type, initalize boundary - - if ((gr_info.window_switching_flag !=0 ) && (gr_info.block_type == 2) ) { - if (gr_info.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 * (gr_info.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) xr_1d[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) xr_1d[quotien][reste] = g_gain * t_43[abv]; - else - { - if (-abv < t_43.length) xr_1d[quotien][reste] = -g_gain * t_43[-abv]; - else xr_1d[quotien][reste] = -g_gain * (float)Math.pow(-abv, d43); - } - } - else - { - if (is_1d[j] > 0) xr_1d[quotien][reste] = g_gain * (float)Math.pow(abv, d43); - else xr_1d[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 ((gr_info.window_switching_flag != 0) && (gr_info.block_type == 2)) { - if (gr_info.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 ((gr_info.window_switching_flag !=0)&& - (((gr_info.block_type == 2) && (gr_info.mixed_block_flag == 0)) || - ((gr_info.block_type == 2) && (gr_info.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] - << gr_info.scalefac_scale; - idx += (gr_info.subblock_gain[t_index] << 2); - - xr_1d[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 (gr_info.preflag != 0) - idx += pretab[cb]; - - idx = idx << gr_info.scalefac_scale; - xr_1d[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; - xr_1d[quotien][reste] = 0.0f; - } - - return; - } - - /** - * - */ - private void reorder(float xr[][], int ch, int gr) - { - gr_info_s gr_info = (si.ch[ch].gr[gr]); - int freq, freq3; - int index; - int sfb, sfb_start, sfb_lines; - int src_line, des_line; - float[][] xr_1d = xr; - - if ((gr_info.window_switching_flag !=0) && (gr_info.block_type == 2)) { - - for(index=0; index<576; index++) - out_1d[index] = 0.0f; - - if (gr_info.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); - out_1d[index] = xr_1d[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); - - out_1d[des_line] = xr_1d[quotien][reste]; - src_line += sfb_lines; - des_line++; - - reste = src_line % SSLIMIT; - quotien = (int) ((src_line-reste)/SSLIMIT); - - out_1d[des_line] = xr_1d[quotien][reste]; - src_line += sfb_lines; - des_line++; - - reste = src_line % SSLIMIT; - quotien = (int) ((src_line-reste)/SSLIMIT); - - out_1d[des_line] = xr_1d[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); - out_1d[index] = xr_1d[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); - out_1d[index] = xr_1d[quotien][reste]; - } - } - } - - /** - * - */ - - int[] is_pos = new int[576]; - float[] is_ratio = new float[576]; - - private void stereo(int gr) - { - int sb, 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]); - int mode_ext = header.mode_extension(); - int sfb; - int i; - int lines, temp, 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 = (gr_info.scalefac_compress & 1); - - // initialization - - for (i=0; i<576; i++) - { - is_pos[i] = 7; - - is_ratio[i] = 0.0f; - } - - if (i_stereo) { - if ((gr_info.window_switching_flag !=0 )&& (gr_info.block_type == 2)) { - if (gr_info.mixed_block_flag != 0) { - - int max_sfb = 0; - - for (int j=0; j<3; j++) { - int sfbcnt; - sfbcnt = 2; - 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; - - 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; - - 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; - - 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; - 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]; - 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; - 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; - - 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; - 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; - - 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; - 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]; - 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]; - 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, ss, 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 ((gr_info.window_switching_flag !=0) && (gr_info.block_type == 2) && - !(gr_info.mixed_block_flag != 0) ) - return; - - if ((gr_info.window_switching_flag !=0) && (gr_info.mixed_block_flag != 0)&& - (gr_info.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 = out_1d[src_idx1]; - float bd = out_1d[src_idx2]; - out_1d[src_idx1] = (bu * cs[ss]) - (bd * ca[ss]); - out_1d[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]); - float[] tsOut; - - float[][] prvblk; - - for(sb18=0;sb18<576;sb18+=18) - { - bt = ((gr_info.window_switching_flag !=0 ) && (gr_info.mixed_block_flag !=0) && - (sb18 < 36)) ? 0 : gr_info.block_type; - - tsOut = out_1d; - // Modif E.B 02/22/99 - for (int cc = 0;cc<18;cc++) - tsOutCopy[cc] = tsOut[cc+sb18]; - - inv_mdct(tsOutCopy, rawout, bt); - - - for (int cc = 0;cc<18;cc++) - tsOut[cc+sb18] = tsOutCopy[cc]; - // Fin Modif - - // overlap addition - prvblk = prevblck; - - tsOut[0 + sb18] = rawout[0] + prvblk[ch][sb18 + 0]; - prvblk[ch][sb18 + 0] = rawout[18]; - tsOut[1 + sb18] = rawout[1] + prvblk[ch][sb18 + 1]; - prvblk[ch][sb18 + 1] = rawout[19]; - tsOut[2 + sb18] = rawout[2] + prvblk[ch][sb18 + 2]; - prvblk[ch][sb18 + 2] = rawout[20]; - tsOut[3 + sb18] = rawout[3] + prvblk[ch][sb18 + 3]; - prvblk[ch][sb18 + 3] = rawout[21]; - tsOut[4 + sb18] = rawout[4] + prvblk[ch][sb18 + 4]; - prvblk[ch][sb18 + 4] = rawout[22]; - tsOut[5 + sb18] = rawout[5] + prvblk[ch][sb18 + 5]; - prvblk[ch][sb18 + 5] = rawout[23]; - tsOut[6 + sb18] = rawout[6] + prvblk[ch][sb18 + 6]; - prvblk[ch][sb18 + 6] = rawout[24]; - tsOut[7 + sb18] = rawout[7] + prvblk[ch][sb18 + 7]; - prvblk[ch][sb18 + 7] = rawout[25]; - tsOut[8 + sb18] = rawout[8] + prvblk[ch][sb18 + 8]; - prvblk[ch][sb18 + 8] = rawout[26]; - tsOut[9 + sb18] = rawout[9] + prvblk[ch][sb18 + 9]; - prvblk[ch][sb18 + 9] = rawout[27]; - tsOut[10 + sb18] = rawout[10] + prvblk[ch][sb18 + 10]; - prvblk[ch][sb18 + 10] = rawout[28]; - tsOut[11 + sb18] = rawout[11] + prvblk[ch][sb18 + 11]; - prvblk[ch][sb18 + 11] = rawout[29]; - tsOut[12 + sb18] = rawout[12] + prvblk[ch][sb18 + 12]; - prvblk[ch][sb18 + 12] = rawout[30]; - tsOut[13 + sb18] = rawout[13] + prvblk[ch][sb18 + 13]; - prvblk[ch][sb18 + 13] = rawout[31]; - tsOut[14 + sb18] = rawout[14] + prvblk[ch][sb18 + 14]; - prvblk[ch][sb18 + 14] = rawout[32]; - tsOut[15 + sb18] = rawout[15] + prvblk[ch][sb18 + 15]; - prvblk[ch][sb18 + 15] = rawout[33]; - tsOut[16 + sb18] = rawout[16] + prvblk[ch][sb18 + 16]; - prvblk[ch][sb18 + 16] = rawout[34]; - tsOut[17 + sb18] = rawout[17] + prvblk[ch][sb18 + 17]; - prvblk[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) - { - float[] win_bt; - int i; - - float tmpf_0, tmpf_1, tmpf_2, tmpf_3, tmpf_4, tmpf_5, tmpf_6, tmpf_7, tmpf_8, tmpf_9; - float tmpf_10, tmpf_11, tmpf_12, tmpf_13, tmpf_14, tmpf_15, tmpf_16, 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; - } - */ - out[0] = 0.0f; - out[1] = 0.0f; - out[2] = 0.0f; - out[3] = 0.0f; - out[4] = 0.0f; - out[5] = 0.0f; - out[6] = 0.0f; - out[7] = 0.0f; - out[8] = 0.0f; - out[9] = 0.0f; - out[10] = 0.0f; - out[11] = 0.0f; - out[12] = 0.0f; - out[13] = 0.0f; - out[14] = 0.0f; - out[15] = 0.0f; - out[16] = 0.0f; - out[17] = 0.0f; - out[18] = 0.0f; - out[19] = 0.0f; - out[20] = 0.0f; - out[21] = 0.0f; - out[22] = 0.0f; - out[23] = 0.0f; - out[24] = 0.0f; - out[25] = 0.0f; - out[26] = 0.0f; - out[27] = 0.0f; - out[28] = 0.0f; - out[29] = 0.0f; - out[30] = 0.0f; - out[31] = 0.0f; - out[32] = 0.0f; - out[33] = 0.0f; - out[34] = 0.0f; - out[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 - in[15+i] += in[12+i]; in[12+i] += in[9+i]; in[9+i] += in[6+i]; - in[6+i] += in[3+i]; in[3+i] += in[0+i]; - - // Input aliasing on odd indices (for 6 point IDCT) - in[15+i] += in[9+i]; in[9+i] += in[3+i]; - - // 3 point IDCT on even indices - float pp1, pp2, sum; - pp2 = in[12+i] * 0.500000000f; - pp1 = in[ 6+i] * 0.866025403f; - sum = in[0+i] + pp2; - tmpf_1 = in[0+i] - in[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 = in[15+i] * 0.500000000f; - pp1 = in[ 9+i] * 0.866025403f; - sum = in[ 3+i] + pp2; - tmpf_4 = in[3+i] - in[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; - - out[six_i + 6] += tmpf_0; - out[six_i + 7] += tmpf_1; - out[six_i + 8] += tmpf_2; - out[six_i + 9] += tmpf_3; - out[six_i + 10] += tmpf_4; - out[six_i + 11] += tmpf_5; - out[six_i + 12] += tmpf_6; - out[six_i + 13] += tmpf_7; - out[six_i + 14] += tmpf_8; - out[six_i + 15] += tmpf_9; - out[six_i + 16] += tmpf_10; - out[six_i + 17] += tmpf_11; - - six_i += 6; - } - } - else - { - // 36 point IDCT - // input aliasing for 36 point IDCT - in[17]+=in[16]; in[16]+=in[15]; in[15]+=in[14]; in[14]+=in[13]; - in[13]+=in[12]; in[12]+=in[11]; in[11]+=in[10]; in[10]+=in[9]; - in[9] +=in[8]; in[8] +=in[7]; in[7] +=in[6]; in[6] +=in[5]; - in[5] +=in[4]; in[4] +=in[3]; in[3] +=in[2]; in[2] +=in[1]; - in[1] +=in[0]; - - // 18 point IDCT for odd indices - // input aliasing for 18 point IDCT - in[17]+=in[15]; in[15]+=in[13]; in[13]+=in[11]; in[11]+=in[9]; - in[9] +=in[7]; in[7] +=in[5]; in[5] +=in[3]; in[3] +=in[1]; - - float tmp0,tmp1,tmp2,tmp3,tmp4,tmp0_,tmp1_,tmp2_,tmp3_; - float tmp0o,tmp1o,tmp2o,tmp3o,tmp4o,tmp0_o,tmp1_o,tmp2_o,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 = in[0]+in[0]; - float iip12 = i00 + in[12]; - - tmp0 = iip12 + in[4]*1.8793852415718f + in[8]*1.532088886238f + in[16]*0.34729635533386f; - tmp1 = i00 + in[4] - in[8] - in[12] - in[12] - in[16]; - tmp2 = iip12 - in[4]*0.34729635533386f - in[8]*1.8793852415718f + in[16]*1.532088886238f; - tmp3 = iip12 - in[4]*1.532088886238f + in[8]*0.34729635533386f - in[16]*1.8793852415718f; - tmp4 = in[0] - in[4] + in[8] - in[12] + in[16]; - - // 4 points on even indices - float i66_ = in[6]*1.732050808f; // Sqrt[3] - - tmp0_ = in[2]*1.9696155060244f + i66_ + in[10]*1.2855752193731f + in[14]*0.68404028665134f; - tmp1_ = (in[2] - in[10] - in[14])*1.732050808f; - tmp2_ = in[2]*1.2855752193731f - i66_ - in[10]*0.68404028665134f + in[14]*1.9696155060244f; - tmp3_ = in[2]*0.68404028665134f - i66_ + in[10]*1.9696155060244f - in[14]*1.2855752193731f; - - // 9 point IDCT on odd indices - // 5 points on odd indices (not realy an IDCT) - float i0 = in[0+1]+in[0+1]; - float i0p12 = i0 + in[12+1]; - - tmp0o = i0p12 + in[4+1]*1.8793852415718f + in[8+1]*1.532088886238f + in[16+1]*0.34729635533386f; - tmp1o = i0 + in[4+1] - in[8+1] - in[12+1] - in[12+1] - in[16+1]; - tmp2o = i0p12 - in[4+1]*0.34729635533386f - in[8+1]*1.8793852415718f + in[16+1]*1.532088886238f; - tmp3o = i0p12 - in[4+1]*1.532088886238f + in[8+1]*0.34729635533386f - in[16+1]*1.8793852415718f; - tmp4o = (in[0+1] - in[4+1] + in[8+1] - in[12+1] + in[16+1])*0.707106781f; // Twiddled - - // 4 points on even indices - float i6_ = in[6+1]*1.732050808f; // Sqrt[3] - - tmp0_o = in[2+1]*1.9696155060244f + i6_ + in[10+1]*1.2855752193731f + in[14+1]*0.68404028665134f; - tmp1_o = (in[2+1] - in[10+1] - in[14+1])*1.732050808f; - tmp2_o = in[2+1]*1.2855752193731f - i6_ - in[10+1]*0.68404028665134f + in[14+1]*1.9696155060244f; - tmp3_o = in[2+1]*0.68404028665134f - i6_ + in[10+1]*1.9696155060244f - in[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, 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]; - - out[0] =-tmpf_9 * win_bt[0]; - out[1] =-tmpf_10 * win_bt[1]; - out[2] =-tmpf_11 * win_bt[2]; - out[3] =-tmpf_12 * win_bt[3]; - out[4] =-tmpf_13 * win_bt[4]; - out[5] =-tmpf_14 * win_bt[5]; - out[6] =-tmpf_15 * win_bt[6]; - out[7] =-tmpf_16 * win_bt[7]; - out[8] =-tmpf_17 * win_bt[8]; - out[9] = tmpf_17 * win_bt[9]; - out[10]= tmpf_16 * win_bt[10]; - out[11]= tmpf_15 * win_bt[11]; - out[12]= tmpf_14 * win_bt[12]; - out[13]= tmpf_13 * win_bt[13]; - out[14]= tmpf_12 * win_bt[14]; - out[15]= tmpf_11 * win_bt[15]; - out[16]= tmpf_10 * win_bt[16]; - out[17]= tmpf_9 * win_bt[17]; - out[18]= tmpf_8 * win_bt[18]; - out[19]= tmpf_7 * win_bt[19]; - out[20]= tmpf_6 * win_bt[20]; - out[21]= tmpf_5 * win_bt[21]; - out[22]= tmpf_4 * win_bt[22]; - out[23]= tmpf_3 * win_bt[23]; - out[24]= tmpf_2 * win_bt[24]; - out[25]= tmpf_1 * win_bt[25]; - out[26]= tmpf_0 * win_bt[26]; - out[27]= tmpf_0 * win_bt[27]; - out[28]= tmpf_1 * win_bt[28]; - out[29]= tmpf_2 * win_bt[29]; - out[30]= tmpf_3 * win_bt[30]; - out[31]= tmpf_4 * win_bt[31]; - out[32]= tmpf_5 * win_bt[32]; - out[33]= tmpf_6 * win_bt[33]; - out[34]= tmpf_7 * win_bt[34]; - out[35]= tmpf_8 * win_bt[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; - - /************************************************************/ - /* L3TABLE */ - /************************************************************/ - - static class SBI - { - public int[] l; - public int[] s; - - public SBI() - { - l = new int[23]; - s = new int[14]; - } - public SBI(int[] thel, int[] thes) - { - l = thel; - s = thes; - } - } - - static 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]; - } - } - - static 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(); - } - } - - static 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(); - } - } - - static 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]; - // } - //} - - 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 */ - /***************************************************************/ - - class Sftable - { - public int[] l; - public int[] s; - - public Sftable() - { - l = new int[5]; - s = new int[3]; - } - - public Sftable(int[] thel, int[] thes) - { - l = thel; - s = thes; - } - } - - public Sftable sftable; - - 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}}}; - - -} |