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-rw-r--r--dvd.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/dvd.c b/dvd.c
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+++ b/dvd.c
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+/*
+ * 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