asminme
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32 lines
1004 B
Java
32 lines
1004 B
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.Inlines;
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class Sigmoid {
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private static final int[] sigm_LUT_slope_Q10 = new int[]{237, 153, 73, 30, 12, 7};
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private static final int[] sigm_LUT_pos_Q15 = new int[]{16384, 23955, 28861, 31213, 32178, 32548};
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private static final int[] sigm_LUT_neg_Q15 = new int[]{16384, 8812, 3906, 1554, 589, 219};
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Sigmoid() {
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}
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static int silk_sigm_Q15(int in_Q5) {
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if (in_Q5 < 0) {
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if ((in_Q5 = -in_Q5) >= 192) {
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return 0;
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}
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int ind = Inlines.silk_RSHIFT(in_Q5, 5);
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return sigm_LUT_neg_Q15[ind] - Inlines.silk_SMULBB(sigm_LUT_slope_Q10[ind], in_Q5 & 0x1F);
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}
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if (in_Q5 >= 192) {
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return Short.MAX_VALUE;
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}
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int ind = Inlines.silk_RSHIFT(in_Q5, 5);
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return sigm_LUT_pos_Q15[ind] + Inlines.silk_SMULBB(sigm_LUT_slope_Q10[ind], in_Q5 & 0x1F);
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}
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}
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