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_Lsf2Lsp.h
16 
17 ******************************************************************/
18 
19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_TO_LSP_H_
20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_TO_LSP_H_
21 
22 #include "modules/audio_coding/codecs/ilbc/defines.h"
23 
24 /*----------------------------------------------------------------*
25  *  conversion from lsf to lsp coefficients
26  *---------------------------------------------------------------*/
27 
28 void WebRtcIlbcfix_Lsf2Lsp(
29     int16_t* lsf, /* (i) lsf in Q13 values between 0 and pi */
30     int16_t* lsp, /* (o) lsp in Q15 values between -1 and 1 */
31     int16_t m     /* (i) number of coefficients */
32     );
33 
34 #endif
35