ref: bca4f2b1da059fbf49a117f447b16b244fa7329a
dir: /libfaad/pns.h/
/*
** FAAD - Freeware Advanced Audio Decoder
** Copyright (C) 2002 M. 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: pns.h,v 1.2 2002/01/19 09:39:41 menno Exp $
**/
#ifndef __PNS_H__
#define __PNS_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "syntax.h"
#define NOISE_OFFSET 90
#define MEAN_NRG 1.537228e+18 /* (2^31)^2 / 3 */
void pns_decode(ic_stream *ics, float *spec);
static __inline long random2(long *seed);
static void gen_rand_vector(float *spec, int size, long *state);
static __inline int is_noise(ic_stream *ics, int group, int sfb)
{
if (ics->sfb_cb[group][sfb] == NOISE_HCB)
return 1;
return 0;
}
#ifdef __cplusplus
}
#endif
#endif