ref: 81555133ae325cfdd73b5114a90adba7d61cc7ee
dir: /libfaac/backpred.h/
/* * FAAC - Freeware Advanced Audio Coder * Copyright (C) 2001 Menno Bakker * * 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 * * $Id: backpred.h,v 1.1 2001/05/02 05:40:16 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 FLEN_LONG 2048 #define SBMAX_L 49 #define LPC 2 #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 int GetMaxPredSfb(int samplingRateIdx); void PredCalcPrediction( double *act_spec, double *last_spec, int btype, int nsfb, int *isfb_width, CoderInfo *coderInfo, ChannelInfo *channelInfo, int chanNum); void PredInit(); void CopyPredInfo(CoderInfo *right, CoderInfo *left); #endif