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
28void 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