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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)cd_misc.c 1.10 01/10/29 Copyright 1997 J. Schilling */
/*
* Misc CD support routines
*
* Copyright (c) 1997 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <mconfig.h>
#include <standard.h>
#include <utypes.h> /* Includes <sys/types.h> for caddr_t */
#include <stdio.h>
#include <schily.h>
#include "wodim.h"
int from_bcd(int b);
int to_bcd(int i);
long msf_to_lba(int m, int s, int f, BOOL force_positive);
BOOL lba_to_msf(long lba, msf_t *mp);
void sec_to_msf(long sec, msf_t *mp);
void print_min_atip(long li, long lo);
int
from_bcd(int b)
{
return ((b & 0x0F) + 10 * (((b)>> 4) & 0x0F));
}
int
to_bcd(int i)
{
return (i % 10 | ((i / 10) % 10) << 4);
}
long
msf_to_lba(int m, int s, int f, BOOL force_positive)
{
long ret = m * 60 + s;
ret *= 75;
ret += f;
if (m < 90 || force_positive)
ret -= 150;
else
ret -= 450150;
return (ret);
}
BOOL
lba_to_msf(long lba, msf_t *mp)
{
int m;
int s;
int f;
#ifdef __follow_redbook__
if (lba >= -150 && lba < 405000) { /* lba <= 404849 */
#else
if (lba >= -150) {
#endif
m = (lba + 150) / 60 / 75;
s = (lba + 150 - m*60*75) / 75;
f = (lba + 150 - m*60*75 - s*75);
} else if (lba >= -45150 && lba <= -151) {
m = (lba + 450150) / 60 / 75;
s = (lba + 450150 - m*60*75) / 75;
f = (lba + 450150 - m*60*75 - s*75);
} else {
mp->msf_min = -1;
mp->msf_sec = -1;
mp->msf_frame = -1;
return (FALSE);
}
mp->msf_min = m;
mp->msf_sec = s;
mp->msf_frame = f;
if (lba > 404849) /* 404850 -> 404999: lead out */
return (FALSE);
return (TRUE);
}
void
sec_to_msf(long sec, msf_t *mp)
{
int m;
int s;
int f;
m = (sec) / 60 / 75;
s = (sec - m*60*75) / 75;
f = (sec - m*60*75 - s*75);
mp->msf_min = m;
mp->msf_sec = s;
mp->msf_frame = f;
}
void
print_min_atip(long li, long lo)
{
msf_t msf;
if (li < 0) {
lba_to_msf(li, &msf);
printf(" ATIP start of lead in: %ld (%02d:%02d/%02d)\n",
li, msf.msf_min, msf.msf_sec, msf.msf_frame);
}
if (lo > 0) {
lba_to_msf(lo, &msf);
printf(" ATIP start of lead out: %ld (%02d:%02d/%02d)\n",
lo, msf.msf_min, msf.msf_sec, msf.msf_frame);
}
}
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