66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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* SpanDSP - a series of DSP components for telephony
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*
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* private/gsm0610.h - GSM 06.10 full rate speech codec.
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2006 Steve Underwood
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: gsm0610.h,v 1.2 2008/11/15 14:27:29 steveu Exp $
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*/
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#if !defined(_SPANDSP_PRIVATE_GSM0610_H_)
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#define _SPANDSP_PRIVATE_GSM0610_H_
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/*!
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GSM 06.10 FR codec state descriptor. This defines the state of
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a single working instance of the GSM 06.10 FR encoder or decoder.
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*/
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struct gsm0610_state_s
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{
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/*! \brief One of the packing modes */
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int packing;
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int16_t dp0[280];
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/*! Preprocessing */
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int16_t z1;
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int32_t L_z2;
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/*! Pre-emphasis */
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int16_t mp;
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/*! Short term delay filter */
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int16_t u[8];
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int16_t LARpp[2][8];
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int16_t j;
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/*! Long term synthesis */
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int16_t nrp;
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/*! Short term synthesis */
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int16_t v[9];
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/*! Decoder postprocessing */
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int16_t msr;
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/*! Encoder data */
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int16_t e[50];
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};
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#endif
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/*- End of include ---------------------------------------------------------*/
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