- reference source code for EVS codec

2018-11-30 13:09:22 +02:00
parent 8c16c048dc
commit 94465da48e
422 changed files with 288315 additions and 0 deletions
@@ -0,0 +1,58 @@
+/*====================================================================================
+    EVS Codec 3GPP TS26.442 Apr 03, 2018. Version 12.11.0 / 13.6.0 / 14.2.0
+  ====================================================================================*/
+
+#include "options.h"    /* Compilation switches                   */
+#include "stl.h"
+#include "prot_fx.h"    /* Function prototypes                    */
+
+
+/*--------------------------------------------------------------------------*
+ * reordvct()
+ *
+ * Rearrange a vector in decreasing order
+ *--------------------------------------------------------------------------*/
+
+void reordvct_fx(
+    Word16 *y,         /* i/o: vector to rearrange    */
+    const Word16 N,          /* i  : dimensions             */
+    Word16 *idx        /* o  : reordered vector index */
+)
+{
+    Word16 i, j, k, n, im, temp;
+
+    n = sub(N, 1);
+    move16();
+    FOR (i=0; i<n; i++)
+    {
+        im = i;
+        move16();
+        k = add(i, 1);
+        move16();
+        FOR (j=k; j<N; j++)
+        {
+            if ( sub(y[im], y[j]) < 0 )
+            {
+                im = j;
+                move16();
+            }
+        }
+
+        temp = y[i];
+        move16();
+        y[i] = y[im];
+        move16();
+        y[im] = temp;
+        move16();
+        j = idx[i];
+        move16();
+        idx[i] = idx[im];
+        move16();
+        idx[im] = j;
+        move16();
+    }
+
+    return;
+}
+
+