mirror of https://github.com/VDR4Arch/vdr.git
170 lines
3.0 KiB
C
170 lines
3.0 KiB
C
/*
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* dvd.c: Functions for handling DVDs
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* Initially written by Andreas Schultz <aschultz@warp10.net>
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*
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* $Id: dvd.c 1.4 2001/11/10 13:38:50 kls Exp $
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*/
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#ifdef DVDSUPPORT
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//#define DVDSUPPORTDEBUG 1
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//#define DEBUG_BUFFER 1
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#include <fcntl.h>
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#include <linux/cdrom.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include "dvd.h"
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#include "tools.h"
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// --- cDVD ----------------------------------------------------------------------------
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const char *cDVD::deviceName = "/dev/dvd";
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cDVD *cDVD::dvdInstance = NULL;
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cDVD *cDVD::getDVD(void)
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{
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if (!dvdInstance)
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new cDVD;
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return dvdInstance;
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}
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cDVD::cDVD(void)
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{
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dvd = NULL;
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title = NULL;
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vmg_file = NULL;
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vts_file = NULL;
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dvdInstance = this;
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}
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cDVD::~cDVD()
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{
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Close();
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}
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int cDVD::Command(int Cmd)
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{
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int result = -1;
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int f;
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if ((f = open(deviceName, O_RDONLY | O_NONBLOCK)) > 0) {
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result = ioctl(f, Cmd, 0);
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close(f);
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}
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return result;
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}
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void cDVD::SetDeviceName(const char *DeviceName)
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{
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deviceName = strdup(DeviceName);
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}
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const char *cDVD::DeviceName(void)
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{
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return deviceName;
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}
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bool cDVD::DriveExists(void)
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{
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return access(deviceName, F_OK) == 0;
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}
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bool cDVD::DiscOk(void)
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{
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return Command(CDROM_DRIVE_STATUS) == CDS_DISC_OK;
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}
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void cDVD::Eject(void)
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{
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if (dvdInstance)
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dvdInstance->Close();
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Command(CDROMEJECT);
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}
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void cDVD::Open(void)
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{
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if (!dvd)
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dvd = DVDOpen(deviceName);
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}
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void cDVD::Close(void)
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{
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#ifdef DVDSUPPORTDEBUG
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dsyslog(LOG_INFO, "DVD: cDVD::Close(%p): vts: %p, vmg: %p, title: %p, dvd: %p", this, vts_file, vmg_file, title, dvd);
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#endif
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if (vts_file)
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ifoClose(vts_file);
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if (vmg_file)
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ifoClose(vmg_file);
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if (title)
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DVDCloseFile(title);
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if (dvd)
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DVDClose(dvd);
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vts_file = NULL;
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vmg_file = NULL;
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title = NULL;
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dvd = NULL;
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}
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ifo_handle_t *cDVD::openVMG(void)
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{
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if (!isValid())
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return NULL;
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if (!vmg_file)
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vmg_file = ifoOpen(dvd, 0);
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return vmg_file;
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}
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ifo_handle_t *cDVD::openVTS(int TitleSet)
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{
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if (!isValid())
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return NULL;
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if (vts_file && (titleset != TitleSet)) {
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ifoClose(vts_file);
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vts_file = NULL;
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}
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if (!vts_file) {
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titleset = TitleSet;
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vts_file = ifoOpen(dvd, TitleSet);
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}
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return vts_file;
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}
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dvd_file_t *cDVD::openTitle(int Title, dvd_read_domain_t domain)
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{
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if (!isValid())
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return NULL;
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if (title)
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DVDCloseFile(title);
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title = DVDOpenFile(dvd, Title, domain);
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return title;
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}
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int cDVD::getAudioTrack(int stream)
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{
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if (getVTS()) {
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switch (getVTS()->vtsi_mat->vts_audio_attr[stream].audio_format) {
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case 0: // ac3
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return aAC3;
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case 2: // mpeg1
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case 3: // mpeg2ext
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return aMPEG;
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case 4: // lpcm
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return aLPCM;
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case 6: // dts
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return aDTS;
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default:
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esyslog(LOG_ERR, "ERROR: unknown Audio stream info");
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}
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}
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return 0;
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}
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#endif //DVDSUPPORT
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