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_LsfInterpolate2PloyEnc.h 16 17 ******************************************************************/ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_ENC_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_ENC_H_ 21 22 #include <stdint.h> 23 24 /*----------------------------------------------------------------* 25 * lsf interpolator and conversion from lsf to a coefficients 26 * (subrutine to SimpleInterpolateLSF) 27 *---------------------------------------------------------------*/ 28 29 void WebRtcIlbcfix_LsfInterpolate2PloyEnc( 30 int16_t* a, /* (o) lpc coefficients Q12 */ 31 int16_t* lsf1, /* (i) first set of lsf coefficients Q13 */ 32 int16_t* lsf2, /* (i) second set of lsf coefficients Q13 */ 33 int16_t coef, /* (i) weighting coefficient to use between 34 lsf1 and lsf2 Q14 */ 35 int16_t length /* (i) length of coefficient vectors */ 36 ); 37 38 #endif 39