LSPQuantization.h 1.89 KB
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/*
 LSPQuantization.h

 Copyright (C) 2011 Belledonne Communications, Grenoble, France
 Author : Johan Pascal
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
#ifndef LSPQUANTIZATION_H
#define LSPQUANTIZATION_H
void initLSPQuantization(bcg729EncoderChannelContextStruct *encoderChannelContext);

/*****************************************************************************/
/* LSPQuantization : Convert LSP to LSF, Quantize LSF and find L parameters, */
/*      qLSF->qLSP as described in spec A3.2.4                               */
/*    parameters:                                                            */
/*      -(i/o) encoderChannelContext : the channel context data              */
/*      -(i) LSPCoefficients : 10 LSP coefficients in Q15                    */
/*      -(i) qLSPCoefficients : 10 qLSP coefficients in Q15                  */
/*      -(o) parameters : 4 parameters L0, L1, L2, L3                        */
/*                                                                           */
/*****************************************************************************/
void LSPQuantization(bcg729EncoderChannelContextStruct *encoderChannelContext, word16_t LSPCoefficients[], word16_t qLSPCoefficients[], uint16_t parameters[]);
#endif /* LSPQUANTIZATION_H */