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source/decompiled/de/maxhenkel/voicechat/concentus/Downmix.java

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+/*
+ * Decompiled with CFR 0.152.
+ */
+package de.maxhenkel.voicechat.concentus;
+
+class Downmix {
+    Downmix() {
+    }
+
+    static void downmix_int(short[] x, int x_ptr, int[] sub, int sub_ptr, int subframe, int offset, int c1, int c2, int C) {
+        int j;
+        for (j = 0; j < subframe; ++j) {
+            sub[j + sub_ptr] = x[(j + offset) * C + c1];
+        }
+        if (c2 > -1) {
+            for (j = 0; j < subframe; ++j) {
+                int n = j + sub_ptr;
+                sub[n] = sub[n] + x[(j + offset) * C + c2];
+            }
+        } else if (c2 == -2) {
+            for (int c = 1; c < C; ++c) {
+                for (j = 0; j < subframe; ++j) {
+                    int n = j + sub_ptr;
+                    sub[n] = sub[n] + x[(j + offset) * C + c];
+                }
+            }
+        }
+        int scale = 4096;
+        scale = C == -2 ? (scale /= C) : (scale /= 2);
+        for (j = 0; j < subframe; ++j) {
+            int n = j + sub_ptr;
+            sub[n] = sub[n] * scale;
+        }
+    }
+}
+