1 files changed, 148 insertions, 0 deletions
diff --git a/dvd.c b/dvd.c
new file mode 100644
index 0000000..841e998
--- /dev/null
+++ b/dvd.c
@@ -0,0 +1,148 @@
+/*
+ * dvd.c: Functions for handling DVDs
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * Initially written by Andreas Schultz <aschultz@warp10.net>
+ *
+ * $Id: dvd.c 1.3 2001/08/06 16:07:44 kls Exp $
+ */
+
+#ifdef DVDSUPPORT
+
+//#define DVDSUPPORTDEBUG 1
+//#define DEBUG_BUFFER    1
+
+#include <fcntl.h>
+#include <linux/cdrom.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include "dvd.h"
+
+// --- cDVD ----------------------------------------------------------------------------
+
+const char *cDVD::deviceName = "/dev/dvd";
+cDVD *cDVD::dvdInstance = NULL;
+
+cDVD *cDVD::getDVD(void)
+{
+  if (!dvdInstance)
+     new cDVD;
+  return dvdInstance;
+}
+
+cDVD::cDVD(void)
+{
+  dvd = NULL;
+  title = NULL;
+  vmg_file = NULL;
+  vts_file = NULL;
+  dvdInstance = this;
+}
+
+cDVD::~cDVD()
+{
+  Close();
+}
+
+int cDVD::Command(int Cmd)
+{
+  int result = -1;
+  int f;
+  if ((f = open(deviceName, O_RDONLY | O_NONBLOCK)) > 0) {
+     result = ioctl(f, Cmd, 0);
+     close(f);
+     }
+  return result;
+}
+
+void cDVD::SetDeviceName(const char *DeviceName)
+{
+  deviceName = strdup(DeviceName);
+}
+
+const char *cDVD::DeviceName(void)
+{
+  return deviceName;
+}
+
+bool cDVD::DriveExists(void)
+{
+  return access(deviceName, F_OK) == 0;
+}
+
+bool cDVD::DiscOk(void)
+{
+  return Command(CDROM_DRIVE_STATUS) == CDS_DISC_OK;
+}
+
+void cDVD::Eject(void)
+{
+  if (dvdInstance)
+     dvdInstance->Close();
+  Command(CDROMEJECT);
+}
+
+void cDVD::Open(void)
+{
+  if (!dvd)
+     dvd = DVDOpen(deviceName);
+}
+
+void cDVD::Close(void)
+{
+#ifdef DVDSUPPORTDEBUG
+  dsyslog(LOG_INFO, "DVD: cDVD::Close(%p): vts: %p, vmg: %p, title: %p, dvd: %p", this, vts_file, vmg_file, title, dvd);
+#endif
+  if (vts_file)
+     ifoClose(vts_file);
+  if (vmg_file)
+     ifoClose(vmg_file);
+  if (title)
+     DVDCloseFile(title);
+  if (dvd)
+     DVDClose(dvd);
+  vts_file = NULL;
+  vmg_file = NULL;
+  title = NULL;
+  dvd = NULL;
+}
+
+ifo_handle_t *cDVD::openVMG(void)
+{
+  if (!isValid())
+     return NULL;
+  if (!vmg_file)
+     vmg_file = ifoOpen(dvd, 0);
+  return vmg_file;
+}
+
+ifo_handle_t *cDVD::openVTS(int TitleSet)
+{
+  if (!isValid())
+     return NULL;
+  if (vts_file && (titleset != TitleSet)) {
+     ifoClose(vts_file);
+     vts_file = NULL;
+     }
+  if (!vts_file) {
+     titleset = TitleSet;
+     vts_file = ifoOpen(dvd, TitleSet);
+     }
+  return vts_file;
+}
+
+dvd_file_t *cDVD::openTitle(int Title, dvd_read_domain_t domain)
+{
+  if (!isValid())
+     return NULL;
+  if (title)
+     DVDCloseFile(title);
+  title = DVDOpenFile(dvd, Title, domain);
+  return title;
+}
+
+#endif //DVDSUPPORT