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_IndexConvDec.c 16 17 ******************************************************************/ 18 19 #include "defines.h" 20 21 void WebRtcIlbcfix_IndexConvDec( 22 int16_t *index /* (i/o) Codebook indexes */ 23 ){ 24 int k; 25 26 for (k=4;k<6;k++) { 27 /* Readjust the second and third codebook index for the first 40 sample 28 so that they look the same as the first (in terms of lag) 29 */ 30 if ((index[k]>=44)&&(index[k]<108)) { 31 index[k]+=64; 32 } else if ((index[k]>=108)&&(index[k]<128)) { 33 index[k]+=128; 34 } else { 35 /* ERROR */ 36 } 37 } 38 } 39
