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_AugmentedCbCorr.h 16 17 ******************************************************************/ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_AUGMENTED_CB_CORR_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_AUGMENTED_CB_CORR_H_ 21 22 #include <stddef.h> 23 #include <stdint.h> 24 25 /*----------------------------------------------------------------* 26 * Calculate correlation between target and Augmented codebooks 27 *---------------------------------------------------------------*/ 28 29 void WebRtcIlbcfix_AugmentedCbCorr( 30 int16_t* target, /* (i) Target vector */ 31 int16_t* buffer, /* (i) Memory buffer */ 32 int16_t* interpSamples, /* (i) buffer with 33 interpolated samples */ 34 int32_t* crossDot, /* (o) The cross correlation between 35 the target and the Augmented 36 vector */ 37 size_t low, /* (i) Lag to start from (typically 38 20) */ 39 size_t high, /* (i) Lag to end at (typically 39 */ 40 int scale); /* (i) Scale factor to use for the crossDot */ 41 42 #endif 43