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/*
*
* $Id: k3baudioimager.cpp 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2004 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 "k3baudioimager.h"
#include "k3baudiodoc.h"
#include "k3baudiotrack.h"
#include "k3baudiodatasource.h"
#include <k3bthread.h>
#include <k3bwavefilewriter.h>
#include <tdelocale.h>
#include <kdebug.h>
#include <tqfile.h>
#include <unistd.h>
class K3bAudioImager::WorkThread : public K3bThread
{
public:
WorkThread( K3bAudioDoc* doc );
void run();
void cancel();
bool m_canceled;
int m_fd;
TQStringList m_imageNames;
K3bAudioImager::ErrorType lastError;
private:
K3bAudioDoc* m_doc;
};
K3bAudioImager::WorkThread::WorkThread( K3bAudioDoc* doc )
: K3bThread(),
m_canceled(false),
m_fd(-1),
m_doc(doc)
{
}
void K3bAudioImager::WorkThread::run()
{
m_canceled = false;
emitStarted();
lastError = K3bAudioImager::ERROR_UNKNOWN;
//
//
//
TQStringList::iterator imageFileIt = m_imageNames.begin();
K3bWaveFileWriter waveFileWriter;
K3bAudioTrack* track = m_doc->firstTrack();
int trackNumber = 1;
unsigned long long totalSize = m_doc->length().audioBytes();
unsigned long long totalRead = 0;
char buffer[2352 * 10];
while( track ) {
emitNextTrack( trackNumber, m_doc->numOfTracks() );
//
// Seek to the beginning of the track
//
if( !track->seek(0) ) {
emitInfoMessage( i18n("Unable to seek in track %1.").arg(trackNumber), K3bJob::ERROR );
emitFinished(false);
return;
}
//
// Initialize the reading
//
int read = 0;
unsigned long long trackRead = 0;
//
// Create the image file
//
if( m_fd == -1 ) {
if( !waveFileWriter.open( *imageFileIt ) ) {
emitInfoMessage( i18n("Could not open %1 for writing").arg(*imageFileIt), K3bJob::ERROR );
emitFinished(false);
return;
}
}
//
// Read data from the track
//
while( (read = track->read( buffer, sizeof(buffer) )) > 0 ) {
if( m_fd == -1 ) {
waveFileWriter.write( buffer, read, K3bWaveFileWriter::BigEndian );
}
else {
if( ::write( m_fd, reinterpret_cast<void*>(buffer), read ) != read ) {
kdDebug() << "(K3bAudioImager::WorkThread) writing to fd " << m_fd << " failed." << endl;
lastError = K3bAudioImager::ERROR_FD_WRITE;
emitFinished(false);
return;
}
}
if( m_canceled ) {
emitCanceled();
emitFinished(false);
return;
}
//
// Emit progress
//
totalRead += read;
trackRead += read;
emitSubPercent( 100*trackRead/track->length().audioBytes() );
emitPercent( 100*totalRead/totalSize );
emitProcessedSubSize( trackRead/1024/1024, track->length().audioBytes()/1024/1024 );
emitProcessedSize( totalRead/1024/1024, totalSize/1024/1024 );
}
if( read < 0 ) {
emitInfoMessage( i18n("Error while decoding track %1.").arg(trackNumber), K3bJob::ERROR );
kdDebug() << "(K3bAudioImager::WorkThread) read error on track " << trackNumber
<< " at pos " << K3b::Msf(trackRead/2352) << endl;
lastError = K3bAudioImager::ERROR_DECODING_TRACK;
emitFinished(false);
return;
}
track = track->next();
trackNumber++;
imageFileIt++;
}
emitFinished(true);
}
void K3bAudioImager::WorkThread::cancel()
{
m_canceled = true;
}
K3bAudioImager::K3bAudioImager( K3bAudioDoc* doc, K3bJobHandler* jh, TQObject* parent, const char* name )
: K3bThreadJob( jh, parent, name ),
m_doc(doc)
{
m_thread = new WorkThread(doc);
setThread( m_thread );
}
K3bAudioImager::~K3bAudioImager()
{
delete m_thread;
}
void K3bAudioImager::writeToFd( int fd )
{
m_thread->m_fd = fd;
}
void K3bAudioImager::setImageFilenames( const TQStringList& p )
{
m_thread->m_imageNames = p;
m_thread->m_fd = -1;
}
K3bAudioImager::ErrorType K3bAudioImager::lastErrorType() const
{
return m_thread->lastError;
}
#include "k3baudioimager.moc"
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