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/*
* 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: psych.h,v 1.15 2009/06/05 16:32:15 menno Exp $
*/
#ifndef PSYCH_H
#define PSYCH_H
#include "faac_real.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#include "coder.h"
#include "channels.h"
#include "fft.h"
typedef struct {
int size;
int sizeS;
/* Previous input samples */
faac_real *prevSamples;
int block_type;
void *data;
} PsyInfo;
typedef struct {
faac_real sampleRate;
/* Hann window */
faac_real *hannWindow;
faac_real *hannWindowS;
/* shared work buffers */
faac_real *sharedWorkBuffLong; /* Used for 2048-sample windows (filtbank, psy, tns) */
faac_real *sharedWorkBuffShort; /* Used for 256-sample windows (psy) */
faac_real *mdctXr; /* MDCT pre-twiddle work buffer (xr) */
faac_real *mdctXi; /* MDCT pre-twiddle work buffer (xi) */
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, faac_real quality);
void (*PsyBufferUpdate) ( FFT_Tables *fft_tables, GlobalPsyInfo * gpsyInfo, PsyInfo * psyInfo,
faac_real *newSamples, unsigned int bandwidth,
int *cb_width_short, int num_cb_short);
void (*BlockSwitch) (CoderInfo *coderInfo, PsyInfo *psyInfo,
unsigned int numChannels);
} psymodel_t;
extern psymodel_t psymodel2;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PSYCH_H */
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