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 29 int 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
