is.h

这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.

/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003-2004 M. Bakker, Ahead Software 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.
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Ahead Software through [e-mail].
**
** $Id: is.h,v 1.16 2004/09/04 14:56:28 menno Exp $
**/

#ifndef __IS_H__
#define __IS_H__

#ifdef __cplusplus
extern "C" {
#endif

#include "syntax.h"

void is_decode(ic_stream *ics, ic_stream *icsr, uint16_t frame_len);

static INLINE int8_t is_intensity(ic_stream *ics, ic_group *group, uint8_t sfb)
{
    switch (group->sfb[sfb].sfb_cb)
    {
    case INTENSITY_HCB:
        return 1;
    case INTENSITY_HCB2:
        return -1;
    default:
        return 0;
    }
}

static INLINE int8_t invert_intensity(ic_stream *ics, ic_group *group, uint8_t sfb)
{
    if (ics->ms_mask_present == 1)
        return (1-2*group->sfb[sfb].ms_used);
    return 1;
}


#ifdef __cplusplus
}
#endif
#endif