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path: root/src/input/vcd/libcdio/sector.c
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Diffstat (limited to 'src/input/vcd/libcdio/sector.c')
-rw-r--r--src/input/vcd/libcdio/sector.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/src/input/vcd/libcdio/sector.c b/src/input/vcd/libcdio/sector.c
new file mode 100644
index 000000000..24082bc2d
--- /dev/null
+++ b/src/input/vcd/libcdio/sector.c
@@ -0,0 +1,111 @@
+/*
+ $Id: sector.c,v 1.1 2003/10/13 11:47:12 f1rmb 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 1.1 2003/10/13 11:47:12 f1rmb 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:
+ */