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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_SimpleInterpolateLsf.h
******************************************************************/
#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_SIMPLE_INTERPOLATE_LSF_H_
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_SIMPLE_INTERPOLATE_LSF_H_
#include "defines.h"
/*----------------------------------------------------------------*
* lsf interpolator (subrutine to LPCencode)
*---------------------------------------------------------------*/
void WebRtcIlbcfix_SimpleInterpolateLsf(
int16_t *syntdenum, /* (o) the synthesis filter denominator
resulting from the quantized
interpolated lsf Q12 */
int16_t *weightdenum, /* (o) the weighting filter denominator
resulting from the unquantized
interpolated lsf Q12 */
int16_t *lsf, /* (i) the unquantized lsf coefficients Q13 */
int16_t *lsfdeq, /* (i) the dequantized lsf coefficients Q13 */
int16_t *lsfold, /* (i) the unquantized lsf coefficients of
the previous signal frame Q13 */
int16_t *lsfdeqold, /* (i) the dequantized lsf coefficients of the
previous signal frame Q13 */
int16_t length, /* (i) should equate FILTERORDER */
iLBC_Enc_Inst_t *iLBCenc_inst
/* (i/o) the encoder state structure */
);
#endif
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