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67 lines
3.2 KiB
Java
67 lines
3.2 KiB
Java
/*
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* Decompiled with CFR 0.152.
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*/
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package de.maxhenkel.voicechat.concentus;
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import de.maxhenkel.voicechat.concentus.Arrays;
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import de.maxhenkel.voicechat.concentus.BWExpander;
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import de.maxhenkel.voicechat.concentus.BoxedValueByte;
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import de.maxhenkel.voicechat.concentus.DecodePitch;
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import de.maxhenkel.voicechat.concentus.GainQuantization;
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import de.maxhenkel.voicechat.concentus.Inlines;
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import de.maxhenkel.voicechat.concentus.NLSF;
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import de.maxhenkel.voicechat.concentus.SilkChannelDecoder;
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import de.maxhenkel.voicechat.concentus.SilkDecoderControl;
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import de.maxhenkel.voicechat.concentus.SilkTables;
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class DecodeParameters {
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DecodeParameters() {
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}
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static void silk_decode_parameters(SilkChannelDecoder psDec, SilkDecoderControl psDecCtrl, int condCoding) {
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int i;
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short[] pNLSF_Q15 = new short[psDec.LPC_order];
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short[] pNLSF0_Q15 = new short[psDec.LPC_order];
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BoxedValueByte boxedLastGainIndex = new BoxedValueByte(psDec.LastGainIndex);
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GainQuantization.silk_gains_dequant(psDecCtrl.Gains_Q16, psDec.indices.GainsIndices, boxedLastGainIndex, condCoding == 2 ? 1 : 0, psDec.nb_subfr);
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psDec.LastGainIndex = boxedLastGainIndex.Val;
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NLSF.silk_NLSF_decode(pNLSF_Q15, psDec.indices.NLSFIndices, psDec.psNLSF_CB);
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NLSF.silk_NLSF2A(psDecCtrl.PredCoef_Q12[1], pNLSF_Q15, psDec.LPC_order);
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if (psDec.first_frame_after_reset == 1) {
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psDec.indices.NLSFInterpCoef_Q2 = (byte)4;
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}
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if (psDec.indices.NLSFInterpCoef_Q2 < 4) {
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for (i = 0; i < psDec.LPC_order; ++i) {
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pNLSF0_Q15[i] = (short)(psDec.prevNLSF_Q15[i] + Inlines.silk_RSHIFT(Inlines.silk_MUL(psDec.indices.NLSFInterpCoef_Q2, pNLSF_Q15[i] - psDec.prevNLSF_Q15[i]), 2));
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}
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NLSF.silk_NLSF2A(psDecCtrl.PredCoef_Q12[0], pNLSF0_Q15, psDec.LPC_order);
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} else {
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System.arraycopy(psDecCtrl.PredCoef_Q12[1], 0, psDecCtrl.PredCoef_Q12[0], 0, psDec.LPC_order);
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}
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System.arraycopy(pNLSF_Q15, 0, psDec.prevNLSF_Q15, 0, psDec.LPC_order);
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if (psDec.lossCnt != 0) {
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BWExpander.silk_bwexpander(psDecCtrl.PredCoef_Q12[0], psDec.LPC_order, 63570);
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BWExpander.silk_bwexpander(psDecCtrl.PredCoef_Q12[1], psDec.LPC_order, 63570);
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}
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if (psDec.indices.signalType == 2) {
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byte Ix;
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DecodePitch.silk_decode_pitch(psDec.indices.lagIndex, psDec.indices.contourIndex, psDecCtrl.pitchL, psDec.fs_kHz, psDec.nb_subfr);
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byte[][] cbk_ptr_Q7 = SilkTables.silk_LTP_vq_ptrs_Q7[psDec.indices.PERIndex];
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for (int k = 0; k < psDec.nb_subfr; ++k) {
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Ix = psDec.indices.LTPIndex[k];
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for (i = 0; i < 5; ++i) {
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psDecCtrl.LTPCoef_Q14[k * 5 + i] = (short)Inlines.silk_LSHIFT(cbk_ptr_Q7[Ix][i], 7);
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}
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}
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Ix = psDec.indices.LTP_scaleIndex;
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psDecCtrl.LTP_scale_Q14 = SilkTables.silk_LTPScales_table_Q14[Ix];
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} else {
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Arrays.MemSet(psDecCtrl.pitchL, 0, psDec.nb_subfr);
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Arrays.MemSet(psDecCtrl.LTPCoef_Q14, (short)0, 5 * psDec.nb_subfr);
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psDec.indices.PERIndex = 0;
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psDecCtrl.LTP_scale_Q14 = 0;
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}
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}
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}
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