ref: 2a38f4826e162c193b00682b7a6a8fe1fddf42e6
dir: /libfaac/psych.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: psych.h,v 1.10 2002/08/07 18:13:09 knik Exp $
*/
#ifndef PSYCH_H
#define PSYCH_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#include "coder.h"
#include "channels.h"
typedef struct {
int size;
int sizeS;
/* Previous input samples */
double *prevSamples;
double *prevSamplesS;
int block_type;
/* Final threshold values */
double *maskThr;
double *maskEn;
double *maskThrS[8];
double *maskEnS[8];
double *maskThrMS;
double *maskEnMS;
double *maskThrSMS[8];
double *maskEnSMS[8];
void *data;
} PsyInfo;
typedef struct {
double sampleRate;
/* Hann window */
double *hannWindow;
double *hannWindowS;
void *data;
} GlobalPsyInfo;
typedef struct {
void (*PsyInit) (GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo,
unsigned int numChannels, unsigned int sampleRate,
int *cb_width_long, int num_cb_long,
int *cb_width_short, int num_cb_short);
void (*PsyEnd) (GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo,
unsigned int numChannels);
void (*PsyCalculate) (ChannelInfo *channelInfo, GlobalPsyInfo *gpsyInfo,
PsyInfo *psyInfo, int *cb_width_long, int num_cb_long,
int *cb_width_short, int num_cb_short,
unsigned int numChannels);
void (*PsyBufferUpdate) (GlobalPsyInfo *gpsyInfo, PsyInfo *psyInfo,
double *newSamples, unsigned int bandwidth);
void (*BlockSwitch) (CoderInfo *coderInfo, PsyInfo *psyInfo,
unsigned int numChannels);
} psymodel_t;
extern psymodel_t psymodel1;
extern psymodel_t psymodel2;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PSYCH_H */