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63 lines
2.4 KiB
Java
63 lines
2.4 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.CodeSigns;
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import de.maxhenkel.voicechat.concentus.EntropyCoder;
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import de.maxhenkel.voicechat.concentus.Inlines;
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import de.maxhenkel.voicechat.concentus.ShellCoder;
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import de.maxhenkel.voicechat.concentus.SilkTables;
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class DecodePulses {
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DecodePulses() {
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}
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static void silk_decode_pulses(EntropyCoder psRangeDec, short[] pulses, int signalType, int quantOffsetType, int frame_length) {
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int i;
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int[] sum_pulses = new int[20];
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int[] nLshifts = new int[20];
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int RateLevelIndex = psRangeDec.dec_icdf(SilkTables.silk_rate_levels_iCDF[signalType >> 1], 8);
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Inlines.OpusAssert(true);
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int iter = Inlines.silk_RSHIFT(frame_length, 4);
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if (iter * 16 < frame_length) {
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Inlines.OpusAssert(frame_length == 120);
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++iter;
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}
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for (i = 0; i < iter; ++i) {
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nLshifts[i] = 0;
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sum_pulses[i] = psRangeDec.dec_icdf(SilkTables.silk_pulses_per_block_iCDF[RateLevelIndex], 8);
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while (sum_pulses[i] == 17) {
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int n = i;
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nLshifts[n] = nLshifts[n] + 1;
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sum_pulses[i] = psRangeDec.dec_icdf(SilkTables.silk_pulses_per_block_iCDF[9], nLshifts[i] == 10 ? 1 : 0, 8);
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}
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}
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for (i = 0; i < iter; ++i) {
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if (sum_pulses[i] > 0) {
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ShellCoder.silk_shell_decoder(pulses, Inlines.silk_SMULBB(i, 16), psRangeDec, sum_pulses[i]);
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continue;
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}
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Arrays.MemSetWithOffset(pulses, (short)0, Inlines.silk_SMULBB(i, 16), 16);
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}
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for (i = 0; i < iter; ++i) {
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if (nLshifts[i] <= 0) continue;
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int nLS = nLshifts[i];
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int pulses_ptr = Inlines.silk_SMULBB(i, 16);
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for (int k = 0; k < 16; ++k) {
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int abs_q = pulses[pulses_ptr + k];
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for (int j = 0; j < nLS; ++j) {
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abs_q = Inlines.silk_LSHIFT(abs_q, 1);
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abs_q += psRangeDec.dec_icdf(SilkTables.silk_lsb_iCDF, 8);
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}
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pulses[pulses_ptr + k] = (short)abs_q;
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}
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int n = i;
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sum_pulses[n] = sum_pulses[n] | nLS << 5;
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}
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CodeSigns.silk_decode_signs(psRangeDec, pulses, frame_length, signalType, quantOffsetType, sum_pulses);
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}
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}
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