You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
516 lines
14 KiB
516 lines
14 KiB
/*
|
|
*
|
|
* $Id: k3bdatatrackreader.cpp 690529 2007-07-21 10:51:47Z trueg $
|
|
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* This file is part of the K3b project.
|
|
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
* See the file "COPYING" for the exact licensing terms.
|
|
*/
|
|
|
|
#include "k3bdatatrackreader.h"
|
|
|
|
#include <k3blibdvdcss.h>
|
|
#include <k3bdevice.h>
|
|
#include <k3bdeviceglobals.h>
|
|
#include <k3btrack.h>
|
|
#include <k3bthread.h>
|
|
#include <k3bcore.h>
|
|
|
|
#include <tdelocale.h>
|
|
#include <kdebug.h>
|
|
|
|
#include <tqfile.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
// FIXME: determine max DMA buffer size
|
|
static int s_bufferSizeSectors = 10;
|
|
|
|
|
|
class K3bDataTrackReader::WorkThread : public K3bThread
|
|
{
|
|
public:
|
|
WorkThread();
|
|
~WorkThread();
|
|
|
|
void init();
|
|
void run();
|
|
int read( unsigned char* buffer, unsigned long sector, unsigned int len );
|
|
bool retryRead( unsigned char* buffer, unsigned long startSector, unsigned int len );
|
|
bool setErrorRecovery( K3bDevice::Device* dev, int code );
|
|
void cancel();
|
|
|
|
bool m_canceled;
|
|
bool m_ignoreReadErrors;
|
|
bool m_noCorrection;
|
|
int m_retries;
|
|
K3bDevice::Device* m_device;
|
|
K3b::Msf m_firstSector;
|
|
K3b::Msf m_lastSector;
|
|
K3b::Msf m_nextReadSector;
|
|
int m_fd;
|
|
TQString m_imagePath;
|
|
int m_sectorSize;
|
|
bool m_useLibdvdcss;
|
|
K3bLibDvdCss* m_libcss;
|
|
|
|
int m_oldErrorRecoveryMode;
|
|
|
|
int m_errorSectorCount;
|
|
|
|
private:
|
|
int m_usedSectorSize;
|
|
};
|
|
|
|
|
|
K3bDataTrackReader::K3bDataTrackReader( K3bJobHandler* jh, TQObject* parent, const char* name )
|
|
: K3bThreadJob( jh, parent, name )
|
|
{
|
|
m_thread = new WorkThread();
|
|
setThread( m_thread );
|
|
}
|
|
|
|
|
|
K3bDataTrackReader::WorkThread::WorkThread()
|
|
: K3bThread(),
|
|
m_canceled(false),
|
|
m_ignoreReadErrors(false),
|
|
m_noCorrection(false),
|
|
m_retries(10),
|
|
m_device(0),
|
|
m_fd(-1),
|
|
m_libcss(0)
|
|
{
|
|
}
|
|
|
|
|
|
K3bDataTrackReader::WorkThread::~WorkThread()
|
|
{
|
|
delete m_libcss;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::WorkThread::init()
|
|
{
|
|
m_canceled = false;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::WorkThread::run()
|
|
{
|
|
emitStarted();
|
|
|
|
if( !m_device->open() ) {
|
|
emitInfoMessage( i18n("Could not open device %1").arg(m_device->blockDeviceName()), K3bJob::ERROR );
|
|
emitFinished(false);
|
|
return;
|
|
}
|
|
|
|
// 1. determine sector size by checking the first sectors mode
|
|
// if impossible or MODE2 (mode2 formless) finish(false)
|
|
|
|
m_useLibdvdcss = false;
|
|
m_usedSectorSize = m_sectorSize;
|
|
if( m_device->isDVD() ) {
|
|
m_usedSectorSize = MODE1;
|
|
|
|
//
|
|
// In case of an encrypted VideoDVD we read with libdvdcss which takes care of decrypting the vobs
|
|
//
|
|
if( m_device->copyrightProtectionSystemType() == 1 ) {
|
|
|
|
// close the device for libdvdcss
|
|
m_device->close();
|
|
|
|
kdDebug() << "(K3bDataTrackReader::WorkThread) found encrypted dvd. using libdvdcss." << endl;
|
|
|
|
// open the libdvdcss stuff
|
|
if( !m_libcss )
|
|
m_libcss = K3bLibDvdCss::create();
|
|
if( !m_libcss ) {
|
|
emitInfoMessage( i18n("Unable to open libdvdcss."), K3bJob::ERROR );
|
|
emitFinished(false);
|
|
return;
|
|
}
|
|
|
|
if( !m_libcss->open(m_device) ) {
|
|
emitInfoMessage( i18n("Could not open device %1").arg(m_device->blockDeviceName()), K3bJob::ERROR );
|
|
emitFinished(false);
|
|
return;
|
|
}
|
|
|
|
emitInfoMessage( i18n("Retrieving all CSS keys. This might take a while."), K3bJob::INFO );
|
|
if( !m_libcss->crackAllKeys() ) {
|
|
m_libcss->close();
|
|
emitInfoMessage( i18n("Failed to retrieve all CSS keys."), K3bJob::ERROR );
|
|
emitInfoMessage( i18n("Video DVD decryption failed."), K3bJob::ERROR );
|
|
emitFinished(false);
|
|
return;
|
|
}
|
|
|
|
m_useLibdvdcss = true;
|
|
}
|
|
}
|
|
else {
|
|
if( m_usedSectorSize == AUTO ) {
|
|
switch( m_device->getDataMode( m_firstSector ) ) {
|
|
case K3bDevice::Track::MODE1:
|
|
case K3bDevice::Track::DVD:
|
|
m_usedSectorSize = MODE1;
|
|
break;
|
|
case K3bDevice::Track::XA_FORM1:
|
|
m_usedSectorSize = MODE2FORM1;
|
|
break;
|
|
case K3bDevice::Track::XA_FORM2:
|
|
m_usedSectorSize = MODE2FORM2;
|
|
break;
|
|
case K3bDevice::Track::MODE2:
|
|
emitInfoMessage( i18n("No support for reading formless Mode2 sectors."), K3bJob::ERROR );
|
|
default:
|
|
emitInfoMessage( i18n("Unsupported sector type."), K3bJob::ERROR );
|
|
m_device->close();
|
|
emitFinished(false);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
emitInfoMessage( i18n("Reading with sector size %1.").arg(m_usedSectorSize), K3bJob::INFO );
|
|
emitDebuggingOutput( "K3bDataTrackReader",
|
|
TQString("reading sectors %1 to %2 with sector size %3. Length: %4 sectors, %5 bytes.")
|
|
.arg( m_firstSector.lba() )
|
|
.arg( m_lastSector.lba() )
|
|
.arg( m_usedSectorSize )
|
|
.arg( m_lastSector.lba() - m_firstSector.lba() + 1 )
|
|
.arg( TQ_UINT64(m_usedSectorSize) * (TQ_UINT64)(m_lastSector.lba() - m_firstSector.lba() + 1) ) );
|
|
|
|
TQFile file;
|
|
if( m_fd == -1 ) {
|
|
file.setName( m_imagePath );
|
|
if( !file.open( IO_WriteOnly ) ) {
|
|
m_device->close();
|
|
if( m_useLibdvdcss )
|
|
m_libcss->close();
|
|
emitInfoMessage( i18n("Unable to open '%1' for writing.").arg(m_imagePath), K3bJob::ERROR );
|
|
emitFinished( false );
|
|
return;
|
|
}
|
|
}
|
|
|
|
k3bcore->blockDevice( m_device );
|
|
m_device->block( true );
|
|
|
|
//
|
|
// set the error recovery mode to 0x21 or 0x20 depending on m_ignoreReadErrors
|
|
// TODO: should we also set RC=1 in m_ignoreReadErrors mode (0x11 because TB is ignored)
|
|
//
|
|
setErrorRecovery( m_device, m_noCorrection ? 0x21 : 0x20 );
|
|
|
|
//
|
|
// Let the drive determine the optimal reading speed
|
|
//
|
|
m_device->setSpeed( 0xffff, 0xffff );
|
|
|
|
s_bufferSizeSectors = 128;
|
|
unsigned char* buffer = new unsigned char[m_usedSectorSize*s_bufferSizeSectors];
|
|
while( s_bufferSizeSectors > 0 && read( buffer, m_firstSector.lba(), s_bufferSizeSectors ) < 0 ) {
|
|
kdDebug() << "(K3bDataTrackReader) determine max read sectors: "
|
|
<< s_bufferSizeSectors << " too high." << endl;
|
|
s_bufferSizeSectors--;
|
|
}
|
|
kdDebug() << "(K3bDataTrackReader) determine max read sectors: "
|
|
<< s_bufferSizeSectors << " is max." << endl;
|
|
|
|
// s_bufferSizeSectors = K3bDevice::determineMaxReadingBufferSize( m_device, m_firstSector );
|
|
if( s_bufferSizeSectors <= 0 ) {
|
|
emitInfoMessage( i18n("Error while reading sector %1.").arg(m_firstSector.lba()), K3bJob::ERROR );
|
|
emitFinished(false);
|
|
m_device->block( false );
|
|
k3bcore->unblockDevice( m_device );
|
|
return;
|
|
}
|
|
|
|
kdDebug() << "(K3bDataTrackReader) using buffer size of " << s_bufferSizeSectors << " blocks." << endl;
|
|
emitDebuggingOutput( "K3bDataTrackReader", TQString("using buffer size of %1 blocks.").arg( s_bufferSizeSectors ) );
|
|
|
|
// 2. get it on
|
|
K3b::Msf currentSector = m_firstSector;
|
|
K3b::Msf totalReadSectors;
|
|
m_nextReadSector = 0;
|
|
m_errorSectorCount = 0;
|
|
bool writeError = false;
|
|
bool readError = false;
|
|
int lastPercent = 0;
|
|
unsigned long lastReadMb = 0;
|
|
int bufferLen = s_bufferSizeSectors*m_usedSectorSize;
|
|
while( !m_canceled && currentSector <= m_lastSector ) {
|
|
|
|
int maxReadSectors = TQMIN( bufferLen/m_usedSectorSize, m_lastSector.lba()-currentSector.lba()+1 );
|
|
|
|
int readSectors = read( buffer,
|
|
currentSector.lba(),
|
|
maxReadSectors );
|
|
if( readSectors < 0 ) {
|
|
if( !retryRead( buffer,
|
|
currentSector.lba(),
|
|
maxReadSectors ) ) {
|
|
readError = true;
|
|
break;
|
|
}
|
|
else
|
|
readSectors = maxReadSectors;
|
|
}
|
|
|
|
totalReadSectors += readSectors;
|
|
|
|
int readBytes = readSectors * m_usedSectorSize;
|
|
|
|
if( m_fd != -1 ) {
|
|
if( ::write( m_fd, reinterpret_cast<void*>(buffer), readBytes ) != readBytes ) {
|
|
kdDebug() << "(K3bDataTrackReader::WorkThread) error while writing to fd " << m_fd
|
|
<< " current sector: " << (currentSector.lba()-m_firstSector.lba()) << endl;
|
|
emitDebuggingOutput( "K3bDataTrackReader",
|
|
TQString("Error while writing to fd %1. Current sector is %2.")
|
|
.arg(m_fd).arg(currentSector.lba()-m_firstSector.lba()) );
|
|
writeError = true;
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
if( file.writeBlock( reinterpret_cast<char*>(buffer), readBytes ) != readBytes ) {
|
|
kdDebug() << "(K3bDataTrackReader::WorkThread) error while writing to file " << m_imagePath
|
|
<< " current sector: " << (currentSector.lba()-m_firstSector.lba()) << endl;
|
|
emitDebuggingOutput( "K3bDataTrackReader",
|
|
TQString("Error while writing to file %1. Current sector is %2.")
|
|
.arg(m_imagePath).arg(currentSector.lba()-m_firstSector.lba()) );
|
|
writeError = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
currentSector += readSectors;
|
|
|
|
int percent = 100 * (currentSector.lba() - m_firstSector.lba() + 1 ) /
|
|
(m_lastSector.lba() - m_firstSector.lba() + 1 );
|
|
|
|
if( percent > lastPercent ) {
|
|
lastPercent = percent;
|
|
emitPercent( percent );
|
|
}
|
|
|
|
unsigned long readMb = (currentSector.lba() - m_firstSector.lba() + 1) / 512;
|
|
if( readMb > lastReadMb ) {
|
|
lastReadMb = readMb;
|
|
emitProcessedSize( readMb, ( m_lastSector.lba() - m_firstSector.lba() + 1 ) / 512 );
|
|
}
|
|
}
|
|
|
|
if( m_errorSectorCount > 0 )
|
|
emitInfoMessage( i18n("Ignored %n erroneous sector.", "Ignored a total of %n erroneous sectors.", m_errorSectorCount ),
|
|
K3bJob::ERROR );
|
|
|
|
// reset the error recovery mode
|
|
setErrorRecovery( m_device, m_oldErrorRecoveryMode );
|
|
|
|
m_device->block( false );
|
|
k3bcore->unblockDevice( m_device );
|
|
|
|
// cleanup
|
|
if( m_useLibdvdcss )
|
|
m_libcss->close();
|
|
m_device->close();
|
|
delete [] buffer;
|
|
|
|
emitDebuggingOutput( "K3bDataTrackReader",
|
|
TQString("Read a total of %1 sectors (%2 bytes)")
|
|
.arg(totalReadSectors.lba())
|
|
.arg((TQ_UINT64)totalReadSectors.lba()*(TQ_UINT64)m_usedSectorSize) );
|
|
|
|
if( m_canceled )
|
|
emitCanceled();
|
|
|
|
emitFinished( !m_canceled && !writeError && !readError );
|
|
}
|
|
|
|
|
|
int K3bDataTrackReader::WorkThread::read( unsigned char* buffer, unsigned long sector, unsigned int len )
|
|
{
|
|
|
|
//
|
|
// Encrypted DVD reading with libdvdcss
|
|
//
|
|
if( m_useLibdvdcss ) {
|
|
return m_libcss->readWrapped( reinterpret_cast<void*>(buffer), sector, len );
|
|
}
|
|
|
|
//
|
|
// Standard reading
|
|
//
|
|
else {
|
|
bool success = false;
|
|
// setErrorRecovery( m_device, m_ignoreReadErrors ? 0x21 : 0x20 );
|
|
if( m_usedSectorSize == 2048 )
|
|
success = m_device->read10( buffer, len*2048, sector, len );
|
|
else
|
|
success = m_device->readCd( buffer,
|
|
len*m_usedSectorSize,
|
|
0, // all sector types
|
|
false, // no dap
|
|
sector,
|
|
len,
|
|
false, // no sync
|
|
false, // no header
|
|
m_usedSectorSize != MODE1, // subheader
|
|
true, // user data
|
|
false, // no edc/ecc
|
|
0, // no c2 error info... FIXME: should we check this??
|
|
0 // no subchannel data
|
|
);
|
|
|
|
if( success )
|
|
return len;
|
|
else
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
// here we read every single sector for itself to find the troubleing ones
|
|
bool K3bDataTrackReader::WorkThread::retryRead( unsigned char* buffer, unsigned long startSector, unsigned int len )
|
|
{
|
|
emitDebuggingOutput( "K3bDataTrackReader", TQString( "Problem while reading. Retrying from sector %1.").arg(startSector) );
|
|
emitInfoMessage( i18n("Problem while reading. Retrying from sector %1.").arg(startSector), K3bJob::WARNING );
|
|
|
|
int sectorsRead = -1;
|
|
bool success = true;
|
|
for( unsigned long sector = startSector; sector < startSector+len; ++sector ) {
|
|
int retry = m_retries;
|
|
while( !m_canceled && retry && (sectorsRead = read( &buffer[( sector - startSector ) * m_usedSectorSize], sector, 1 )) < 0 )
|
|
--retry;
|
|
|
|
success = ( sectorsRead > 0 );
|
|
|
|
if( m_canceled )
|
|
return false;
|
|
|
|
if( !success ) {
|
|
if( m_ignoreReadErrors ) {
|
|
emitInfoMessage( i18n("Ignoring read error in sector %1.").arg(sector), K3bJob::ERROR );
|
|
emitDebuggingOutput( "K3bDataTrackReader", TQString( "Ignoring read error in sector %1.").arg(sector) );
|
|
|
|
++m_errorSectorCount;
|
|
// ::memset( &buffer[i], 0, 1 );
|
|
success = true;
|
|
}
|
|
else {
|
|
emitInfoMessage( i18n("Error while reading sector %1.").arg(sector), K3bJob::ERROR );
|
|
emitDebuggingOutput( "K3bDataTrackReader", TQString( "Read error in sector %1.").arg(sector) );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
|
|
bool K3bDataTrackReader::WorkThread::setErrorRecovery( K3bDevice::Device* dev, int code )
|
|
{
|
|
unsigned char* data = 0;
|
|
unsigned int dataLen = 0;
|
|
if( !dev->modeSense( &data, dataLen, 0x01 ) )
|
|
return false;
|
|
|
|
// in MMC1 the page has 8 bytes (12 in MMC4 but we only need the first 3 anyway)
|
|
if( dataLen < 8+8 ) {
|
|
kdDebug() << "(K3bDataTrackReader) modepage 0x01 data too small: " << dataLen << endl;
|
|
delete [] data;
|
|
return false;
|
|
}
|
|
|
|
m_oldErrorRecoveryMode = data[8+2];
|
|
data[8+2] = code;
|
|
|
|
if( m_oldErrorRecoveryMode != code )
|
|
kdDebug() << "(K3bDataTrackReader) changing data recovery mode from " << m_oldErrorRecoveryMode << " to " << code << endl;
|
|
|
|
bool success = dev->modeSelect( data, dataLen, true, false );
|
|
|
|
delete [] data;
|
|
|
|
return success;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::WorkThread::cancel()
|
|
{
|
|
m_canceled = true;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
K3bDataTrackReader::~K3bDataTrackReader()
|
|
{
|
|
delete m_thread;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setDevice( K3bDevice::Device* dev )
|
|
{
|
|
m_thread->m_device = dev;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setSectorRange( const K3b::Msf& start, const K3b::Msf& end )
|
|
{
|
|
m_thread->m_firstSector = start;
|
|
m_thread->m_lastSector = end;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setRetries( int r )
|
|
{
|
|
m_thread->m_retries = r;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setIgnoreErrors( bool b )
|
|
{
|
|
m_thread->m_ignoreReadErrors = b;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setNoCorrection( bool b )
|
|
{
|
|
m_thread->m_noCorrection = b;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::writeToFd( int fd )
|
|
{
|
|
m_thread->m_fd = fd;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setImagePath( const TQString& p )
|
|
{
|
|
m_thread->m_imagePath = p;
|
|
m_thread->m_fd = -1;
|
|
}
|
|
|
|
|
|
void K3bDataTrackReader::setSectorSize( SectorSize size )
|
|
{
|
|
m_thread->m_sectorSize = size;
|
|
}
|