media/webrtc/trunk/webrtc/modules/audio_coding/codecs/ilbc/lsf_interpolate_to_poly_dec.h
author Randell Jesup <rjesup@jesup.org>
Tue, 11 Jun 2013 21:08:23 -0400
changeset 146210 92fc4bf7a9e96fe79af999ba0dbda55983b9bf2d
parent 131330 266b7ce809a87f5dfd417b08d218d4c49ec3791a
child 146232 73b1a6ee8d12742d55b08e07d11860107b9243f9
permissions -rw-r--r--
bug 880879: Webrtc updated to 4180; pull made on Wed Jan 05 04:11:00 EDT 2013 rs=derf

/*
 *  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_LspInterpolate2PolyDec.h

******************************************************************/

#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_DEC_H_
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_LSF_INTERPOLATE_TO_POLY_DEC_H_

#include "defines.h"

/*----------------------------------------------------------------*
 *  interpolation of lsf coefficients for the decoder
 *---------------------------------------------------------------*/

void WebRtcIlbcfix_LspInterpolate2PolyDec(
    int16_t *a,   /* (o) lpc coefficients Q12 */
    int16_t *lsf1,  /* (i) first set of lsf coefficients Q13 */
    int16_t *lsf2,  /* (i) second set of lsf coefficients Q13 */
    int16_t coef,  /* (i) weighting coefficient to use between
                                   lsf1 and lsf2 Q14 */
    int16_t length  /* (i) length of coefficient vectors */
                                          );

#endif