/*** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com**** 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.**** Any non-GPL usage of this software or parts of this software is strictly** forbidden.**** The "appropriate copyright message" mentioned in section 2c of the GPLv2** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"**** Commercial non-GPL licensing of this software is possible.** For more info contact Nero AG through Mpeg4AAClicense@nero.com.**** $Id: is.h,v 1.20 2007/11/01 12:33:31 menno Exp $**/ #ifndef __IS_H__#define __IS_H__ #ifdef __cplusplusextern "C" {#endif #include "syntax.h" void is_decode(ic_stream *ics, ic_stream *icsr, real_t *l_spec, real_t *r_spec,               uint16_t frame_len); static INLINE int8_t is_intensity(ic_stream *ics, uint8_t group, uint8_t sfb){    switch (ics->sfb_cb[group][sfb])    {    case INTENSITY_HCB:        return 1;    case INTENSITY_HCB2:        return -1;    default:        return 0;    }} static INLINE int8_t invert_intensity(ic_stream *ics, uint8_t group, uint8_t sfb){    if (ics->ms_mask_present == 1)        return (1-2*ics->ms_used[group][sfb]);    return 1;}  #ifdef __cplusplus}#endif#endif