1/*
2 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11/******************************************************************
12
13 iLBC Speech Coder ANSI-C Source Code
14
15 WebRtcIlbcfix_XcorrCoef.h
16
17******************************************************************/
18
19#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_XCORR_COEF_H_
20#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_XCORR_COEF_H_
21
22#include "defines.h"
23
24/*----------------------------------------------------------------*
25 * cross correlation which finds the optimal lag for the
26 * crossCorr*crossCorr/(energy) criteria
27 *---------------------------------------------------------------*/
28
29int WebRtcIlbcfix_XcorrCoef(
30    int16_t *target,  /* (i) first array */
31    int16_t *regressor, /* (i) second array */
32    int16_t subl,  /* (i) dimension arrays */
33    int16_t searchLen, /* (i) the search lenght */
34    int16_t offset,  /* (i) samples offset between arrays */
35    int16_t step   /* (i) +1 or -1 */
36                            );
37
38#endif
39