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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
iLBC Speech Coder ANSI-C Source Code
#include "defines.h"
* Find index in array such that the array element with said
* index is the element of said array closest to "value"
* according to the squared-error criterion
void WebRtcIlbcfix_NearestNeighbor(
WebRtc_Word16 *index, /* (o) index of array element closest to value */
WebRtc_Word16 *array, /* (i) data array (Q2) */
WebRtc_Word16 value, /* (i) value (Q2) */
WebRtc_Word16 arlength /* (i) dimension of data array (==8) */
int i;
WebRtc_Word16 diff;
/* Stack based */
WebRtc_Word32 crit[8];
/* Calculate square distance */
crit[i]=WEBRTC_SPL_MUL_16_16(diff, diff);
/* Find the minimum square distance */
*index=WebRtcSpl_MinIndexW32(crit, (WebRtc_Word16)arlength);