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_LspInterpolate2PolyDec.h
16 
17 ******************************************************************/
18 
19 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_DEC_H_
20 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_DEC_H_
21 
22 #include "defines.h"
23 
24 /*----------------------------------------------------------------*
25  *  interpolation of lsf coefficients for the decoder
26  *---------------------------------------------------------------*/
27 
28 void WebRtcIlbcfix_LspInterpolate2PolyDec(
29     int16_t *a,   /* (o) lpc coefficients Q12 */
30     int16_t *lsf1,  /* (i) first set of lsf coefficients Q13 */
31     int16_t *lsf2,  /* (i) second set of lsf coefficients Q13 */
32     int16_t coef,  /* (i) weighting coefficient to use between
33                                    lsf1 and lsf2 Q14 */
34     int16_t length  /* (i) length of coefficient vectors */
35                                           );
36 
37 #endif
38