1 files changed, 108 insertions, 0 deletions
diff --git a/contrib/libvcd/vcd_read.c b/contrib/libvcd/vcd_read.c
new file mode 100644
index 000000000..dd9d30cfa
--- /dev/null
+++ b/contrib/libvcd/vcd_read.c
@@ -0,0 +1,108 @@
+/*
+    $Id: vcd_read.c,v 1.4 2005/01/01 02:43:59 rockyb Exp $
+
+    Copyright (C) 2001,2003 Herbert Valerio Riedel <hvr@gnu.org>
+    Copyright (C) 2003 Rocky Bernstein <rocky@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
+*/
+
+
+#include "vcd_read.h"
+#include "vcd_assert.h"
+#include <libvcd/inf.h>
+#include <libvcd/files.h>
+#include <libvcd/logging.h>
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+bool 
+read_pvd(CdIo *cdio, iso9660_pvd_t *pvd) 
+{
+  if (cdio_read_mode2_sector (cdio, pvd, ISO_PVD_SECTOR, false)) {
+    vcd_error ("error reading PVD sector (%d)", ISO_PVD_SECTOR);
+    return false;
+  }
+  
+  if (pvd->type != ISO_VD_PRIMARY) {
+    vcd_error ("unexpected PVD type %d", pvd->type);
+    return false;
+  }
+  
+  if (strncmp (pvd->id, ISO_STANDARD_ID, strlen (ISO_STANDARD_ID)))
+    {
+      vcd_error ("unexpected ID encountered (expected `"
+		ISO_STANDARD_ID "', got `%.5s'", pvd->id);
+      return false;
+    }
+  return true;
+}
+
+bool 
+read_entries(CdIo *cdio, EntriesVcd_t *entries) 
+{
+  if (cdio_read_mode2_sector (cdio, entries, ENTRIES_VCD_SECTOR, false)) {
+    vcd_error ("error reading Entries sector (%d)", ENTRIES_VCD_SECTOR);
+    return false;
+  }
+
+  /* analyze signature/type */
+
+  if (!strncmp (entries->ID, ENTRIES_ID_VCD, sizeof (entries->ID)))
+    return true;
+  else if (!strncmp (entries->ID, "ENTRYSVD", sizeof (entries->ID))) {
+    vcd_warn ("found (non-compliant) SVCD ENTRIES.SVD signature");
+    return true;
+  }  else {
+    vcd_error ("unexpected ID signature encountered `%.8s'", entries->ID);
+    return false;
+  }
+}
+
+bool 
+read_info(CdIo *cdio, InfoVcd_t *info, vcd_type_t *vcd_type) 
+{
+  if (cdio_read_mode2_sector (cdio, info, INFO_VCD_SECTOR, false)) {
+    vcd_error ("error reading Info sector (%d)", INFO_VCD_SECTOR);
+    return false;
+  }
+
+  *vcd_type = vcd_files_info_detect_type (info);
+
+  /* analyze signature/type */
+
+  switch (*vcd_type)
+    {
+    case VCD_TYPE_VCD:
+    case VCD_TYPE_VCD11:
+    case VCD_TYPE_VCD2:
+    case VCD_TYPE_SVCD:
+    case VCD_TYPE_HQVCD:
+      vcd_debug ("%s detected", vcdinf_get_format_version_str(*vcd_type));
+      break;
+    case VCD_TYPE_INVALID:
+      vcd_error ("unknown ID encountered -- maybe not a proper (S)VCD?");
+      return false;
+      break;
+    default:
+      vcd_assert_not_reached ();
+      break;
+    }
+
+  return true;
+}
+