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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 1.2 2001/08/05 15:00:45 kls Exp $
*/
//XXX //#define DVDDEBUG 1
//XXX //#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 DVDDEBUG
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;
}
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