mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
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/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** The "appropriate copyright message" mentioned in section 2c of the GPLv2
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** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
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**
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** $Id: is.h,v 1.20 2007/11/01 12:33:31 menno Exp $
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**/
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#ifndef __IS_H__
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#define __IS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "syntax.h"
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void is_decode(ic_stream *ics, ic_stream *icsr, real_t *l_spec, real_t *r_spec,
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uint16_t frame_len);
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static INLINE int8_t is_intensity(ic_stream *ics, uint8_t group, uint8_t sfb)
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{
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switch (ics->sfb_cb[group][sfb])
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{
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case INTENSITY_HCB:
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return 1;
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case INTENSITY_HCB2:
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return -1;
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default:
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return 0;
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}
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}
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static INLINE int8_t invert_intensity(ic_stream *ics, uint8_t group, uint8_t sfb)
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{
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if (ics->ms_mask_present == 1)
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return (1-2*ics->ms_used[group][sfb]);
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return 1;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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