File indexing completed on 2024-04-28 04:49:50

 /*
     SPDX-FileCopyrightText: 2010 Michal Malek <michalm@jabster.pl>
     SPDX-FileCopyrightText: 1998-2008 Sebastian Trueg <trueg@k3b.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-k3b.h>
 
 #include "k3bcdparanoialib.h"
 
 #include "k3bdevice.h"
 #include "k3btoc.h"
 #include "k3bmsf.h"
 
 #include <QDebug>
 #include <QFile>
 #include <QGlobalStatic>
 #include <QLibrary>
 #include <QMutex>
 #include <QMutexLocker>
 
 #ifdef Q_OS_WIN32
 typedef short int int16_t;
 #endif
 
 static bool s_haveLibCdio = false;
 
 
 
 #define CDDA_IDENTIFY          s_haveLibCdio ? "cdio_cddap_identify" : "cdda_identify"
 #define CDDA_CLOSE             s_haveLibCdio ? "cdio_cddap_close" : "cdda_close"
 #define CDDA_OPEN              s_haveLibCdio ? "cdio_cddap_open" : "cdda_open"
 #define CDDA_TRACK_FIRSTSECTOR s_haveLibCdio ? "cdio_cddap_track_firstsector" : "cdda_track_firstsector"
 #define CDDA_TRACK_LASTSECTOR  s_haveLibCdio ? "cdio_cddap_track_lastsector" : "cdda_track_lastsector"
 #define CDDA_VERBOSE_SET       s_haveLibCdio ? "cdio_cddap_verbose_set" : "cdda_verbose_set"
 #define CDDA_DISC_FIRSTSECTOR  s_haveLibCdio ? "cdio_cddap_disc_firstsector" : "cdda_disc_firstsector"
 
 #define PARANOIA_INIT          s_haveLibCdio ? "cdio_paranoia_init" : "paranoia_init"
 #define PARANOIA_FREE          s_haveLibCdio ? "cdio_paranoia_free" : "paranoia_free"
 #define PARANOIA_MODESET       s_haveLibCdio ? "cdio_paranoia_modeset" : "paranoia_modeset"
 #define PARANOIA_SEEK          s_haveLibCdio ? "cdio_paranoia_seek" : "paranoia_seek"
 #define PARANOIA_READ_LIMITED  s_haveLibCdio ? "cdio_paranoia_read_limited" : "paranoia_read_limited"
 
 
 // from cdda_paranoia.h
 #define PARANOIA_CB_READ           0
 #define PARANOIA_CB_VERIFY         1
 #define PARANOIA_CB_FIXUP_EDGE     2
 #define PARANOIA_CB_FIXUP_ATOM     3
 #define PARANOIA_CB_SCRATCH        4
 #define PARANOIA_CB_REPAIR         5
 #define PARANOIA_CB_SKIP           6
 #define PARANOIA_CB_DRIFT          7
 #define PARANOIA_CB_BACKOFF        8
 #define PARANOIA_CB_OVERLAP        9
 #define PARANOIA_CB_FIXUP_DROPPED 10
 #define PARANOIA_CB_FIXUP_DUPED   11
 #define PARANOIA_CB_READERR       12
 
 
 Q_GLOBAL_STATIC(QLibrary, s_libInterface)
 Q_GLOBAL_STATIC(QLibrary, s_libParanoia)
 
 
 
 static void paranoiaCallback( long, int status )
 {
     // do nothing so far....
     return;
 
     switch( status ) {
     case -1:
         break;
     case -2:
         break;
     case PARANOIA_CB_READ:
         // no problem
         // does only this mean that the sector has been read?
 //     m_lastReadSector = sector;  // this seems to be rather useless
 //     m_readSectors++;
         break;
     case PARANOIA_CB_VERIFY:
         break;
     case PARANOIA_CB_FIXUP_EDGE:
         break;
     case PARANOIA_CB_FIXUP_ATOM:
         break;
     case PARANOIA_CB_SCRATCH:
         // scratch detected
         break;
     case PARANOIA_CB_REPAIR:
         break;
     case PARANOIA_CB_SKIP:
         // skipped sector
         break;
     case PARANOIA_CB_DRIFT:
         break;
     case PARANOIA_CB_BACKOFF:
         break;
     case PARANOIA_CB_OVERLAP:
         // sector does not seem to contain the current
         // sector but the amount of overlapped data
         //    m_overlap = sector;
         break;
     case PARANOIA_CB_FIXUP_DROPPED:
         break;
     case PARANOIA_CB_FIXUP_DUPED:
         break;
     case PARANOIA_CB_READERR:
         break;
     }
 }
 
 
 
 extern "C" {
     struct cdrom_drive;
     struct cdrom_paranoia;
 
     // HINT: these pointers must NOT have the same name like the actual methods!
     //       I added "cdda_" as prefix
     //       Before doing that K3b crashed in cdda_open!
     //       Can anyone please explain that to me?
 
     // cdda_interface
     cdrom_drive* (*cdda_cdda_identify)(const char*, int, char**);
     int (*cdda_cdda_open)(cdrom_drive *d);
     int (*cdda_cdda_close)(cdrom_drive *d);
     long (*cdda_cdda_track_firstsector)( cdrom_drive*, int );
     long (*cdda_cdda_track_lastsector)( cdrom_drive*, int );
     long (*cdda_cdda_disc_firstsector)(cdrom_drive *d);
     void (*cdda_cdda_verbose_set)(cdrom_drive *d,int err_action, int mes_action);
 
     // cdda_paranoia
     cdrom_paranoia* (*cdda_paranoia_init)(cdrom_drive*);
     void (*cdda_paranoia_free)(cdrom_paranoia *p);
     void (*cdda_paranoia_modeset)(cdrom_paranoia *p, int mode);
     int16_t* (*cdda_paranoia_read_limited)(cdrom_paranoia *p, void(*callback)(long,int), int);
     long (*cdda_paranoia_seek)(cdrom_paranoia *p,long seek,int mode);
 }
 
 // from cdda_paranoia.h
 #define PARANOIA_MODE_FULL        0xff
 #define PARANOIA_MODE_DISABLE     0
 
 #define PARANOIA_MODE_VERIFY      1
 #define PARANOIA_MODE_FRAGMENT    2
 #define PARANOIA_MODE_OVERLAP     4
 #define PARANOIA_MODE_SCRATCH     8
 #define PARANOIA_MODE_REPAIR      16
 #define PARANOIA_MODE_NEVERSKIP   32
 
 
 
 namespace K3b {
     /**
      * Internal class used by CdparanoiaLib
      */
     class CdparanoiaLibData
     {
     public:
         ~CdparanoiaLibData()
         {
             paranoiaFree();
         }
 
         Device::Device* device() const { return m_device; }
         void paranoiaModeSet( int );
         bool paranoiaInit();
         void paranoiaFree();
         int16_t* paranoiaRead( void(*callback)(long,int), int maxRetries );
         long paranoiaSeek( long, int );
         long firstSector( int );
         long lastSector( int );
         long sector() const { return m_currentSector; }
 
         static CdparanoiaLibData* data( Device::Device* dev )
         {
             QMap<Device::Device*, CdparanoiaLibData*>::const_iterator it = s_dataMap.constFind( dev );
             if( it == s_dataMap.constEnd() ) {
                 CdparanoiaLibData* data = new CdparanoiaLibData( dev );
                 s_dataMap.insert( dev, data );
                 return data;
             }
             else
                 return *it;
         }
 
         static void freeAll()
         {
             // clean up all CdparanoiaLibData instances
             qDeleteAll( s_dataMap );
             s_dataMap.clear();
         }
 
     private:
         CdparanoiaLibData( Device::Device* dev )
             : m_device(dev),
               m_drive(0),
               m_paranoia(0),
               m_currentSector(0)
         {
         }
 
         //
         // We have exactly one instance of CdparanoiaLibData per device
         //
         static QMap<Device::Device*, CdparanoiaLibData*> s_dataMap;
 
         Device::Device* m_device;
 
         cdrom_drive* m_drive;
         cdrom_paranoia* m_paranoia;
 
         long m_currentSector;
 
         QMutex m_mutex;
     };
 }
 
 QMap<K3b::Device::Device*, K3b::CdparanoiaLibData*> K3b::CdparanoiaLibData::s_dataMap;
 
 bool K3b::CdparanoiaLibData::paranoiaInit()
 {
     if( m_drive )
         paranoiaFree();
 
     QMutexLocker locker( &m_mutex );
 
     // since we use cdparanoia to open the device it is important to close
     // the device here
     m_device->close();
 
     m_drive = cdda_cdda_identify( QFile::encodeName(m_device->blockDeviceName()), 0, 0 );
     if( m_drive == 0 ) {
         return false;
     }
 
     //  cdda_cdda_verbose_set( m_drive, 1, 1 );
 
     cdda_cdda_open( m_drive );
     m_paranoia = cdda_paranoia_init( m_drive );
     if( m_paranoia == 0 ) {
         paranoiaFree();
         return false;
     }
 
     m_currentSector = 0;
 
     return true;
 }
 
 
 void K3b::CdparanoiaLibData::paranoiaFree()
 {
     QMutexLocker locker( &m_mutex );
 
     if( m_paranoia ) {
         cdda_paranoia_free( m_paranoia );
         m_paranoia = 0;
     }
     if( m_drive ) {
         cdda_cdda_close( m_drive );
         m_drive = 0;
     }
 }
 
 
 void K3b::CdparanoiaLibData::paranoiaModeSet( int mode )
 {
     QMutexLocker locker( &m_mutex );
     cdda_paranoia_modeset( m_paranoia, mode );
 }
 
 
 int16_t* K3b::CdparanoiaLibData::paranoiaRead( void(*callback)(long,int), int maxRetries )
 {
     if( m_paranoia ) {
         QMutexLocker locker( &m_mutex );
         int16_t* data = cdda_paranoia_read_limited( m_paranoia, callback, maxRetries );
         if( data )
             m_currentSector++;
         return data;
     }
     else
         return 0;
 }
 
 
 long K3b::CdparanoiaLibData::firstSector( int track )
 {
     if( m_drive ) {
         QMutexLocker locker( &m_mutex );
         long sector = cdda_cdda_track_firstsector( m_drive, track );
         return sector;
     }
     else
         return -1;
 }
 
 long K3b::CdparanoiaLibData::lastSector( int track )
 {
     if( m_drive ) {
         QMutexLocker locker( &m_mutex );
         long sector = cdda_cdda_track_lastsector(m_drive, track );
         return sector;
     }
     else
         return -1;
 }
 
 
 long K3b::CdparanoiaLibData::paranoiaSeek( long sector, int mode )
 {
     if( m_paranoia ) {
         QMutexLocker locker( &m_mutex );
         m_currentSector = cdda_paranoia_seek( m_paranoia, sector, mode );
         return m_currentSector;
     }
     else
         return -1;
 }
 
 
 
 class K3b::CdparanoiaLib::Private
 {
 public:
     Private()
         : device(0),
           currentSector(0),
           startSector(0),
           lastSector(0),
           status(S_OK),
           paranoiaLevel(0),
           neverSkip(true),
           maxRetries(5),
           data(0) {
     }
 
     ~Private() {
     }
 
     void updateParanoiaMode() {
         // from cdrdao 1.1.7
         int paranoiaMode = PARANOIA_MODE_FULL^PARANOIA_MODE_NEVERSKIP;
 
         switch( paranoiaLevel ) {
         case 0:
             paranoiaMode = PARANOIA_MODE_DISABLE;
             break;
 
         case 1:
             paranoiaMode |= PARANOIA_MODE_OVERLAP;
             paranoiaMode &= ~PARANOIA_MODE_VERIFY;
             break;
 
         case 2:
             paranoiaMode &= ~(PARANOIA_MODE_SCRATCH|PARANOIA_MODE_REPAIR);
             break;
         }
 
         if( neverSkip )
             paranoiaMode |= PARANOIA_MODE_NEVERSKIP;
 
         data->paranoiaModeSet( paranoiaMode );
     }
 
     // high-level api
     K3b::Device::Device* device;
     K3b::Device::Toc toc;
     long currentSector;
     long startSector;
     long lastSector;
     int status;
     unsigned int currentTrack;
     int paranoiaLevel;
     bool neverSkip;
     int maxRetries;
 
     K3b::CdparanoiaLibData* data;
 };
 
 
 K3b::CdparanoiaLib::CdparanoiaLib()
 {
     d = new Private();
 }
 
 
 K3b::CdparanoiaLib::~CdparanoiaLib()
 {
     delete d;
 }
 
 
 bool K3b::CdparanoiaLib::load()
 {
     cdda_cdda_identify = (cdrom_drive* (*) (const char*, int, char**))s_libInterface->resolve( CDDA_IDENTIFY );
     cdda_cdda_open = (int (*) (cdrom_drive*))s_libInterface->resolve( CDDA_OPEN );
     cdda_cdda_close = (int (*) (cdrom_drive*))s_libInterface->resolve( CDDA_CLOSE );
     cdda_cdda_track_firstsector = (long (*)(cdrom_drive*, int))s_libInterface->resolve( CDDA_TRACK_FIRSTSECTOR );
     cdda_cdda_track_lastsector = (long (*)(cdrom_drive*, int))s_libInterface->resolve( CDDA_TRACK_LASTSECTOR );
     cdda_cdda_verbose_set = (void (*)(cdrom_drive *d,int err_action, int mes_action))s_libInterface->resolve( CDDA_VERBOSE_SET );
     cdda_cdda_disc_firstsector = (long (*)(cdrom_drive *d))s_libInterface->resolve( CDDA_DISC_FIRSTSECTOR );
 
     cdda_paranoia_init = (cdrom_paranoia* (*)(cdrom_drive*))s_libParanoia->resolve( PARANOIA_INIT );
     cdda_paranoia_free = (void (*)(cdrom_paranoia *p))s_libParanoia->resolve( PARANOIA_FREE );
     cdda_paranoia_modeset = (void (*)(cdrom_paranoia *p, int mode))s_libParanoia->resolve( PARANOIA_MODESET );
     cdda_paranoia_read_limited = (int16_t* (*)(cdrom_paranoia *p, void(*callback)(long,int), int))s_libParanoia->resolve( PARANOIA_READ_LIMITED );
     cdda_paranoia_seek = (long (*)(cdrom_paranoia *p,long seek,int mode))s_libParanoia->resolve( PARANOIA_SEEK );
 
     // check if all symbols could be resoled
     if( cdda_cdda_identify == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_identify'";
         return false;
     }
     if( cdda_cdda_open == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_open'";
         return false;
     }
     if( cdda_cdda_close == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_close'";
         return false;
     }
     if( cdda_cdda_track_firstsector == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_track_firstsector'";
         return false;
     }
     if( cdda_cdda_track_lastsector == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_track_lastsector'";
         return false;
     }
     if( cdda_cdda_disc_firstsector == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_disc_firstsector'";
         return false;
     }
     if( cdda_cdda_verbose_set == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'cdda_verbose_set'";
         return false;
     }
 
     if( cdda_paranoia_init == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'paranoia_init'";
         return false;
     }
     if( cdda_paranoia_free == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'paranoia_free'";
         return false;
     }
     if( cdda_paranoia_modeset == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'paranoia_modeset'";
         return false;
     }
     if( cdda_paranoia_read_limited == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'paranoia_read_limited'";
         return false;
     }
     if( cdda_paranoia_seek == 0 ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve 'paranoia_seek'";
         return false;
     }
 
     return true;
 }
 
 
 
 K3b::CdparanoiaLib* K3b::CdparanoiaLib::create()
 {
     // check if libcdda_interface is available
     if( !s_libInterface->isLoaded() ) {
         s_haveLibCdio = true;
 
         // Windows ignores version:
         // https://doc.qt.io/qt-5/qlibrary.html#setFileNameAndVersion
         s_libInterface->setFileNameAndVersion( "cdio_cdda", 2 );
         s_libInterface->setLoadHints( QLibrary::ResolveAllSymbolsHint | QLibrary::ExportExternalSymbolsHint );
 #ifndef Q_OS_WIN32
         if( !s_libInterface->load() ) {
             s_libInterface->setFileNameAndVersion( "cdio_cdda", 1 );
             if( !s_libInterface->load() ) {
                 s_libInterface->setFileNameAndVersion( "cdio_cdda", 0 );
                 if( !s_libInterface->load() ) {
                     s_libInterface->setFileNameAndVersion( "cdio_cdda", "" );
                     if( !s_libInterface->load() ) {
                         s_haveLibCdio = false;
                         s_libInterface->setFileNameAndVersion( "cdda_interface", 1 );
                         if( !s_libInterface->load() ) {
                             s_libInterface->setFileNameAndVersion( "cdda_interface", 0 );
 #endif
                             if( !s_libInterface->load() ) {
                                 s_libInterface->setFileNameAndVersion( "cdda_interface", "" );
                                 if( !s_libInterface->load() ) {
                                     qDebug() << "(K3b::CdparanoiaLib) Error while loading libcdda_interface.";
                                     return 0;
                                 }
                             }
 #ifndef Q_OS_WIN32
                         }
                     }
                 }
             }
         }
 #endif
 
 
     s_libParanoia->setLoadHints( QLibrary::ResolveAllSymbolsHint | QLibrary::ExportExternalSymbolsHint );
         if( s_haveLibCdio ) {
             s_libParanoia->setFileNameAndVersion( "cdio_paranoia", 2 );
 #ifndef Q_OS_WIN32
             if( !s_libParanoia->load() ) {
                 s_libParanoia->setFileNameAndVersion( "cdio_paranoia", 1 );
                 if( !s_libParanoia->load() ) {
                     s_libParanoia->setFileNameAndVersion( "cdio_paranoia", 0 );
                     if( !s_libParanoia->load() ) {
                         s_libParanoia->setFileNameAndVersion( "cdio_paranoia", "" );
 #endif
                         s_libParanoia->load();
 #ifndef Q_OS_WIN32
                     }
                 }
             }
 #endif
         }
 
         if( !s_libParanoia->isLoaded() ) {
             s_libParanoia->setFileNameAndVersion( "cdda_paranoia", 1 );
 #ifndef Q_OS_WIN32
             if( !s_libParanoia->load() ) {
                 s_libParanoia->setFileNameAndVersion( "cdda_paranoia", 0 );
                 if( !s_libParanoia->load() ) {
                     s_libParanoia->setFileNameAndVersion( "cdda_paranoia", "" );
 #endif
                     if( !s_libParanoia->load() ) {
                         qDebug() << "(K3b::CdparanoiaLib) Error while loading libcdda_paranoia.";
                         s_libInterface->unload();
                         return 0;
                     }
 #ifndef Q_OS_WIN32
                 }
             }
 #endif
         }
     }
 
     K3b::CdparanoiaLib* lib = new K3b::CdparanoiaLib();
     if( !lib->load() ) {
         qDebug() << "(K3b::CdparanoiaLib) Error: could not resolve all symbols!";
         s_libInterface->unload();
         s_libParanoia->unload();
         delete lib;
         return 0;
     }
     return lib;
 }
 
 
 bool K3b::CdparanoiaLib::initParanoia( K3b::Device::Device* dev, const K3b::Device::Toc& toc )
 {
     if( !dev ) {
         qCritical() << "(K3b::CdparanoiaLib::initParanoia) dev = 0!" << Qt::endl;
         return false;
     }
 
     close();
 
     d->device = dev;
     d->toc = toc;
     if( d->toc.isEmpty() ) {
         qDebug() << "(K3b::CdparanoiaLib) empty toc.";
         cleanup();
         return false;
     }
 
     if( d->toc.contentType() == K3b::Device::DATA ) {
         qDebug() << "(K3b::CdparanoiaLib) No audio tracks found.";
         cleanup();
         return false;
     }
 
     //
     // Get the appropriate data instance for this device
     //
     d->data = K3b::CdparanoiaLibData::data( dev );
 
     if( d->data->paranoiaInit() ) {
         d->startSector = d->currentSector = d->lastSector = 0;
 
         return true;
     }
     else {
         cleanup();
         return false;
     }
 }
 
 
 bool K3b::CdparanoiaLib::initParanoia( K3b::Device::Device* dev )
 {
     return initParanoia( dev, dev->readToc() );
 }
 
 
 void K3b::CdparanoiaLib::close()
 {
     cleanup();
 }
 
 
 void K3b::CdparanoiaLib::cleanup()
 {
     if( d->data )
         d->data->paranoiaFree();
     d->device = 0;
     d->currentSector = 0;
 }
 
 
 bool K3b::CdparanoiaLib::initReading()
 {
     if( d->device ) {
         // find first audio track
         K3b::Device::Toc::const_iterator trackIt = d->toc.constBegin();
         while( (*trackIt).type() != K3b::Device::Track::TYPE_AUDIO ) {
             ++trackIt;
         }
 
         long start = (*trackIt).firstSector().lba();
 
         // find last audio track
         while( trackIt != d->toc.constEnd() && (*trackIt).type() == K3b::Device::Track::TYPE_AUDIO )
             ++trackIt;
         --trackIt;
 
         long end = (*trackIt).lastSector().lba();
 
         return initReading( start, end );
     }
     else {
         qDebug() << "(K3b::CdparanoiaLib) initReading without initParanoia.";
         return false;
     }
 }
 
 
 bool K3b::CdparanoiaLib::initReading( int track )
 {
     if( d->device ) {
         if( track <= d->toc.count() ) {
             const K3b::Device::Track& k3bTrack = d->toc[track-1];
             if( k3bTrack.type() == K3b::Device::Track::TYPE_AUDIO ) {
                 return initReading( k3bTrack.firstSector().lba(), k3bTrack.lastSector().lba() );
             }
             else {
                 qDebug() << "(K3b::CdparanoiaLib) Track " << track << " no audio track.";
                 return false;
             }
         }
         else {
             qDebug() << "(K3b::CdparanoiaLib) Track " << track << " too high.";
             return false;
         }
     }
     else {
         qDebug() << "(K3b::CdparanoiaLib) initReading without initParanoia.";
         return false;
     }
 }
 
 
 bool K3b::CdparanoiaLib::initReading( long start, long end )
 {
     qDebug() << "(K3b::CdparanoiaLib) initReading( " << start << ", " << end << " )";
 
     if( d->device ) {
         if( d->toc.firstSector().lba() <= start &&
             d->toc.lastSector().lba() >= end ) {
             d->startSector = d->currentSector = start;
             d->lastSector = end;
 
             // determine track number
             d->currentTrack = 1;
             while( d->toc[d->currentTrack-1].lastSector() < start )
                 d->currentTrack++;
 
             // let the paranoia stuff point to the startSector
             d->data->paranoiaSeek( start, SEEK_SET );
             return true;
         }
         else {
             qDebug() << "(K3b::CdparanoiaLib) " << start << " and " << end << " out of range.";
             return false;
         }
     }
     else {
         qDebug() << "(K3b::CdparanoiaLib) initReading without initParanoia.";
         return false;
     }
 }
 
 
 char* K3b::CdparanoiaLib::read( int* statusCode, unsigned int* track, bool littleEndian )
 {
     if( d->currentSector > d->lastSector ) {
         qDebug() << "(K3b::CdparanoiaLib) finished ripping. read "
                  << (d->currentSector - d->startSector) << " sectors." << Qt::endl
                  << "                   current sector: " << d->currentSector << Qt::endl;
         d->status = S_OK;
         if( statusCode )
             *statusCode = d->status;
         return 0;
     }
 
     if( d->currentSector != d->data->sector() ) {
         qDebug() << "(K3b::CdparanoiaLib) need to seek before read. Looks as if we are reusing the paranoia instance.";
         if( d->data->paranoiaSeek( d->currentSector, SEEK_SET ) == -1 )
             return 0;
     }
 
     //
     // The paranoia data could have been used by someone else before
     // and setting the paranoia mode is fast
     //
     d->updateParanoiaMode();
 
     qint16* data = d->data->paranoiaRead( paranoiaCallback, d->maxRetries );
 
     char* charData = reinterpret_cast<char*>(data);
 
     if(
 #ifndef WORDS_BIGENDIAN // __BYTE_ORDER == __BIG_ENDIAN
         !
 #endif
         littleEndian ) {
         for( int i = 0; i < CD_FRAMESIZE_RAW-1; i+=2 ) {
             char b = charData[i];
             charData[i] = charData[i+1];
             charData[i+1] = b;
         }
     }
 
 
     if( data )
         d->status = S_OK;
     else
         d->status = S_ERROR; // We may skip this sector if we'd like...
 
     if( statusCode )
         *statusCode = d->status;
 
     if( track )
         *track = d->currentTrack;
 
     d->currentSector++;
 
     if( d->toc[d->currentTrack-1].lastSector() < d->currentSector )
         d->currentTrack++;
 
     return charData;
 }
 
 
 int K3b::CdparanoiaLib::status() const
 {
     return d->status;
 }
 
 
 const K3b::Device::Toc& K3b::CdparanoiaLib::toc() const
 {
     return d->toc;
 }
 
 
 long K3b::CdparanoiaLib::rippedDataLength() const
 {
     return d->lastSector - d->startSector + 1;
 }
 
 
 void K3b::CdparanoiaLib::setParanoiaMode( int m )
 {
     d->paranoiaLevel = m;
 }
 
 
 void K3b::CdparanoiaLib::setNeverSkip( bool b )
 {
     d->neverSkip = b;
 }
 
 
 void K3b::CdparanoiaLib::setMaxRetries( int r )
 {
     d->maxRetries = r;
 }