ref: 23c01216a178da75bc1513c198aebff24f98ec08
dir: /libfaac/backpred.h/
/*
* FAAC - Freeware Advanced Audio Coder
* Copyright (C) 2001 Menno Bakker
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: backpred.h,v 1.5 2001/06/08 18:01:09 menno Exp $
*/
#ifndef _AAC_BACK_H_INCLUDED
#define _AAC_BACK_H_INCLUDED
#define PRED_ALPHA 0.90625
#define PRED_A 0.953125
#define PRED_B 0.953125
#define ALPHA PRED_ALPHA
#define A PRED_A
#define B PRED_B
#define MINVAR 1.e-10
/* Reset every RESET_FRAME frames. */
#define RESET_FRAME 8
void PredCalcPrediction(double *act_spec,
double *last_spec,
int btype,
int nsfb,
int *isfb_width,
CoderInfo *coderInfo,
ChannelInfo *channelInfo,
int chanNum);
void PredInit(faacEncHandle hEncoder);
void CopyPredInfo(CoderInfo *right, CoderInfo *left);
#endif