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/* 
 *
 * $Id: k3baudiosessionreadingjob.cpp 619556 2007-01-03 17:38:12Z 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 "k3baudiosessionreadingjob.h"

#include <k3bthread.h>
#include <k3btoc.h>
#include <k3bcdparanoialib.h>
#include <k3bwavefilewriter.h>
#include <k3bglobals.h>
#include <k3bdevice.h>
#include <k3bcore.h>

#include <kdebug.h>
#include <klocale.h>

#include <unistd.h>


class K3bAudioSessionReadingJob::WorkThread : public K3bThread
{
public:
  WorkThread();
  ~WorkThread();

  void init();
  void run();
  void cancel();

  bool canceled;

  int fd;
  K3bCdparanoiaLib* paranoia;
  K3bDevice::Device* device;
  K3bDevice::Toc toc;
  K3bWaveFileWriter* waveFileWriter;
  TQStringList filenames;
  int paranoiaMode;
  int retries;
  bool neverSkip;
};


K3bAudioSessionReadingJob::WorkThread::WorkThread()
  : K3bThread(),
    fd(-1),
    paranoia(0),
    waveFileWriter(0),
    paranoiaMode(0),
    retries(50),
    neverSkip(false)
{
}


K3bAudioSessionReadingJob::WorkThread::~WorkThread()
{
  delete waveFileWriter;
  delete paranoia;
}


void K3bAudioSessionReadingJob::WorkThread::init()
{
  canceled = false;
}


void K3bAudioSessionReadingJob::WorkThread::run()
{
  if( !paranoia )
    paranoia = K3bCdparanoiaLib::create();

  if( !paranoia ) {
    emitInfoMessage( i18n("Could not load libcdparanoia."), K3bJob::ERROR );
    emitFinished(false);
    return;
  }

  if( toc.isEmpty() )
    toc = device->readToc();

  if( !paranoia->initParanoia( device, toc ) ) {
    emitInfoMessage( i18n("Could not open device %1").tqarg(device->blockDeviceName()),
		     K3bJob::ERROR );
    emitFinished(false);
    return;
  }

  if( !paranoia->initReading() ) {
    emitInfoMessage( i18n("Error while initializing audio ripping."), K3bJob::ERROR );
    emitFinished(false);    
    return;
  }

  device->block( true );

  // init settings
  paranoia->setMaxRetries( retries );
  paranoia->setParanoiaMode( paranoiaMode );
  paranoia->setNeverSkip( neverSkip );

  bool writeError = false;
  unsigned int trackNum = 1;
  unsigned int currentTrack = 0;
  unsigned long trackRead = 0;
  unsigned long totalRead = 0;
  unsigned int lastTrackPercent = 0;
  unsigned int lastTotalPercent = 0;
  bool newTrack = true;
  int status = 0;
  char* buffer = 0;
  while( !canceled && (buffer = paranoia->read( &status, &trackNum, fd == -1 /*when writing to a wav be want little endian */ )) ) {

    if( currentTrack != trackNum ) {
      emitNextTrack( trackNum, paranoia->toc().count() );
      trackRead = 0;
      lastTrackPercent = 0;

      currentTrack = trackNum;
      newTrack = true;
    }

    if( fd > 0 ) {
      if( ::write( fd, buffer, CD_FRAMESIZE_RAW ) != CD_FRAMESIZE_RAW ) {
	kdDebug() << "(K3bAudioSessionCopyJob::WorkThread) error while writing to fd " << fd << endl;
	writeError = true;
	break;
      }
    }
    else {
      if( newTrack ) {
	newTrack = false;

	if( !waveFileWriter )
	  waveFileWriter = new K3bWaveFileWriter();

	if( filenames.count() < currentTrack ) {
	  kdDebug() << "(K3bAudioSessionCopyJob) not enough image filenames given: " << currentTrack << endl;
	  writeError = true;
	  break;
	}

	if( !waveFileWriter->open( filenames[currentTrack-1] ) ) {
	  emitInfoMessage( i18n("Unable to open '%1' for writing.").tqarg(filenames[currentTrack-1]), K3bJob::ERROR );
	  writeError = true;
	  break;
	}
      }

      waveFileWriter->write( buffer, 
			     CD_FRAMESIZE_RAW, 
			     K3bWaveFileWriter::LittleEndian );
    }

    trackRead++;
    totalRead++;

    unsigned int trackPercent = 100 * trackRead / toc[currentTrack-1].length().lba();
    if( trackPercent > lastTrackPercent ) {
      lastTrackPercent = trackPercent;
      emitSubPercent( lastTrackPercent );
    }
    unsigned int totalPercent = 100 * totalRead / paranoia->rippedDataLength();
    if( totalPercent > lastTotalPercent ) {
      lastTotalPercent = totalPercent;
      emitPercent( lastTotalPercent );
    }
  }

  if( waveFileWriter )
    waveFileWriter->close();

  paranoia->close();

  device->block( false );

  if( status != K3bCdparanoiaLib::S_OK ) {
    emitInfoMessage( i18n("Unrecoverable error while ripping track %1.").tqarg(trackNum), K3bJob::ERROR );
    emitFinished(false);
    return;
  }

  emitFinished( !writeError & !canceled );
}


void K3bAudioSessionReadingJob::WorkThread::cancel()
{
  canceled = true;
  // FIXME: add backup killing like in the audio ripping and make sure to close paranoia
}




K3bAudioSessionReadingJob::K3bAudioSessionReadingJob( K3bJobHandler* jh, TQObject* parent, const char* name )
  : K3bThreadJob( jh, parent, name )
{
  m_thread = new WorkThread();
  setThread( m_thread );
}


K3bAudioSessionReadingJob::~K3bAudioSessionReadingJob()
{
  delete m_thread;
}


void K3bAudioSessionReadingJob::setDevice( K3bDevice::Device* dev )
{
  m_thread->device = dev;
  m_thread->toc = K3bDevice::Toc();
}


void K3bAudioSessionReadingJob::setToc( const K3bDevice::Toc& toc )
{
  m_thread->toc = toc;
}


void K3bAudioSessionReadingJob::writeToFd( int fd )
{
  m_thread->fd = fd;
}

void K3bAudioSessionReadingJob::setImageNames( const TQStringList& l )
{
  m_thread->filenames = l;
  m_thread->fd = -1;
}


void K3bAudioSessionReadingJob::setParanoiaMode( int m )
{
  m_thread->paranoiaMode = m;
}


void K3bAudioSessionReadingJob::setReadRetries( int r )
{
  m_thread->retries = r;
}

void K3bAudioSessionReadingJob::setNeverSkip( bool b )
{
  m_thread->neverSkip = b;
}


void K3bAudioSessionReadingJob::start()
{
  k3bcore->blockDevice( m_thread->device );
  K3bThreadJob::start();
}


void K3bAudioSessionReadingJob::cleanupJob( bool success )
{
  Q_UNUSED( success );
  k3bcore->unblockDevice( m_thread->device );
}

#include "k3baudiosessionreadingjob.moc"