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/*
$Id: sector.c,v 1.2 2004/04/11 12:20:31 miguelfreitas Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <cdio/sector.h>
#include <cdio/util.h>
#include "cdio_assert.h"
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
static const char _rcsid[] = "$Id: sector.c,v 1.2 2004/04/11 12:20:31 miguelfreitas Exp $";
lba_t
cdio_lba_to_lsn (lba_t lba)
{
return lba - CDIO_PREGAP_SECTORS;
}
void
cdio_lba_to_msf (lba_t lba, msf_t *msf)
{
cdio_assert (msf != 0);
msf->m = to_bcd8 (lba / (60 * 75));
msf->s = to_bcd8 ((lba / 75) % 60);
msf->f = to_bcd8 (lba % 75);
}
/* warning, returns new allocated string */
char *
cdio_lba_to_msf_str (lba_t lba)
{
char buf[16];
msf_t _msf = { .m = 0, .s = 0, .f = 0 };
cdio_lba_to_msf (lba, &_msf);
snprintf (buf, sizeof (buf), "%.2x:%.2x.%.2x", _msf.m, _msf.s, _msf.f);
return strdup (buf);
}
lba_t
cdio_lsn_to_lba (lsn_t lsn)
{
return lsn + CDIO_PREGAP_SECTORS;
}
void
cdio_lsn_to_msf (lsn_t lsn, msf_t *msf)
{
cdio_assert (msf != 0);
cdio_lba_to_msf(cdio_lsn_to_lba(lsn), msf);
}
uint32_t
cdio_msf_to_lba (const msf_t *msf)
{
uint32_t lba = 0;
cdio_assert (msf != 0);
lba = from_bcd8 (msf->m);
lba *= 60;
lba += from_bcd8 (msf->s);
lba *= 75;
lba += from_bcd8 (msf->f);
return lba;
}
uint32_t
cdio_msf_to_lsn (const msf_t *msf)
{
return cdio_lba_to_lsn(cdio_msf_to_lba (msf));
}
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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