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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/******************************************************************
iLBC Speech Coder ANSI-C Source Code
WebRtcIlbcfix_Poly2Lsp.h
******************************************************************/
#ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_POLY_TO_LSP_H_
#define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_POLY_TO_LSP_H_
#include <stdint.h>
/*----------------------------------------------------------------*
* conversion from lpc coefficients to lsp coefficients
* function is only for 10:th order LPC
*---------------------------------------------------------------*/
void WebRtcIlbcfix_Poly2Lsp(
int16_t* a, /* (o) A coefficients in Q12 */
int16_t* lsp, /* (i) LSP coefficients in Q15 */
int16_t* old_lsp /* (i) old LSP coefficients that are used if the new
coefficients turn out to be unstable */
);
#endif
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