blob: 3fcce2514711631f8f9966a275e2feabcfaeed65 [file] [log] [blame]
/*
* 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
WebRtcIlbcfix_XcorrCoef.h
******************************************************************/
#ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_XCORR_COEF_H_
#define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_XCORR_COEF_H_
#include <stddef.h>
#include <stdint.h>
/*----------------------------------------------------------------*
* cross correlation which finds the optimal lag for the
* crossCorr*crossCorr/(energy) criteria
*---------------------------------------------------------------*/
size_t WebRtcIlbcfix_XcorrCoef(
int16_t* target, /* (i) first array */
int16_t* regressor, /* (i) second array */
size_t subl, /* (i) dimension arrays */
size_t searchLen, /* (i) the search lenght */
size_t offset, /* (i) samples offset between arrays */
int16_t step /* (i) +1 or -1 */
);
#endif