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/*
* madplay - MPEG audio decoder and player
* Copyright (C) 2000-2004 Robert Leslie
*
* 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: rgain.c,v 1.1 2004/02/23 21:34:53 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# include "global.h"
# include <mad.h>
# include "rgain.h"
# include "gettext.h"
/*
* NAME: rgain->parse()
* DESCRIPTION: parse a 16-bit Replay Gain field
*/
void rgain_parse(struct rgain *rgain, struct mad_bitptr *ptr)
{
int negative;
rgain->name = mad_bit_read(ptr, 3);
rgain->originator = mad_bit_read(ptr, 3);
negative = mad_bit_read(ptr, 1);
rgain->adjustment = mad_bit_read(ptr, 9);
if (negative)
rgain->adjustment = -rgain->adjustment;
}
/*
* NAME: rgain->originator()
* DESCRIPTION: return a string description of a Replay Gain originator
*/
char const *rgain_originator(struct rgain const *rgain)
{
char const *originator = 0;
switch (rgain->originator) {
case RGAIN_ORIGINATOR_UNSPECIFIED:
return 0;
case RGAIN_ORIGINATOR_PRESET:
originator = _("preset");
break;
case RGAIN_ORIGINATOR_USER:
originator = _("user");
break;
case RGAIN_ORIGINATOR_AUTOMATIC:
originator = _("automatic");
break;
}
return originator ? originator : _("other");
}
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