src/Dialog_Processing.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Dialog_Processing.h"
  24
  25 //UIC includes
  26 #include "UIC_ProcessingDialog.h"
  27
  28 //Internal
  29 #include "Global.h"
  30 #include "Model_FileList.h"
  31 #include "Model_Progress.h"
  32 #include "Model_Settings.h"
  33 #include "Model_FileExts.h"
  34 #include "Thread_Process.h"
  35 #include "Thread_CPUObserver.h"
  36 #include "Thread_RAMObserver.h"
  37 #include "Thread_DiskObserver.h"
  38 #include "Dialog_LogView.h"
  39 #include "Registry_Decoder.h"
  40 #include "Registry_Encoder.h"
  41 #include "Filter_Downmix.h"
  42 #include "Filter_Normalize.h"
  43 #include "Filter_Resample.h"
  44 #include "Filter_ToneAdjust.h"
  45
  46 //MUtils
  47 #include <MUtils/Global.h>
  48 #include <MUtils/OSSupport.h>
  49 #include <MUtils/GUI.h>
  50 #include <MUtils/CPUFeatures.h>
  51 #include <MUtils/Sound.h>
  52 #include <MUtils/Taskbar7.h>
  53
  54 //Qt
  55 #include <QApplication>
  56 #include <QRect>
  57 #include <QDesktopWidget>
  58 #include <QMovie>
  59 #include <QMessageBox>
  60 #include <QTimer>
  61 #include <QCloseEvent>
  62 #include <QDesktopServices>
  63 #include <QUrl>
  64 #include <QUuid>
  65 #include <QFileInfo>
  66 #include <QDir>
  67 #include <QMenu>
  68 #include <QSystemTrayIcon>
  69 #include <QProcess>
  70 #include <QProgressDialog>
  71 #include <QResizeEvent>
  72 #include <QTime>
  73 #include <QElapsedTimer>
  74 #include <QThreadPool>
  75
  76 #include <math.h>
  77 #include <float.h>
  78 #include <stdint.h>
  79
  80 ////////////////////////////////////////////////////////////
  81
  82 //Maximum number of parallel instances
  83 #define MAX_INSTANCES 32U
  84
  85 //Function to calculate the number of instances
  86 static int cores2instances(int cores);
  87
  88 ////////////////////////////////////////////////////////////
  89
  90 #define CHANGE_BACKGROUND_COLOR(WIDGET, COLOR) do \
  91 { \
  92         QPalette palette = WIDGET->palette(); \
  93         palette.setColor(QPalette::Background, COLOR); \
  94         WIDGET->setPalette(palette); \
  95 } \
  96 while(0)
  97
  98 #define SET_PROGRESS_TEXT(TXT) do \
  99 { \
 100         ui->label_progress->setText(TXT); \
 101         if(!m_systemTray.isNull()) \
 102         { \
 103                 if(!m_systemTray->isVisible()) m_systemTray->setVisible(true); \
 104                 m_systemTray->setToolTip(QString().sprintf("LameXP v%d.%02d\n%ls", lamexp_version_major(), lamexp_version_minor(), QString(TXT).utf16())); \
 105         } \
 106 } \
 107 while(0)
 108
 109 #define SET_FONT_BOLD(WIDGET,BOLD) do \
 110 { \
 111         QFont _font = WIDGET->font(); \
 112         _font.setBold(BOLD); WIDGET->setFont(_font); \
 113 } \
 114 while(0)
 115
 116 #define SET_TEXT_COLOR(WIDGET, COLOR) do \
 117 { \
 118         QPalette _palette = WIDGET->palette(); \
 119         _palette.setColor(QPalette::WindowText, (COLOR)); \
 120         _palette.setColor(QPalette::Text, (COLOR)); \
 121         WIDGET->setPalette(_palette); \
 122 } \
 123 while(0)
 124
 125 #define UPDATE_MIN_WIDTH(WIDGET) do \
 126 { \
 127         if(WIDGET->width() > WIDGET->minimumWidth()) WIDGET->setMinimumWidth(WIDGET->width()); \
 128 } \
 129 while(0)
 130
 131 #define PLAY_SOUND_OPTIONAL(NAME, ASYNC) do \
 132 { \
 133         if(m_settings->soundsEnabled()) MUtils::Sound::play_sound((NAME), (ASYNC)); \
 134 } \
 135 while(0)
 136
 137 #define IS_VBR(RC_MODE) ((RC_MODE) == SettingsModel::VBRMode)
 138
 139 ////////////////////////////////////////////////////////////
 140
 141 //Dummy class for UserData
 142 class IntUserData : public QObjectUserData
 143 {
 144 public:
 145         IntUserData(int value) : m_value(value) {/*NOP*/}
 146         int value(void) { return m_value; }
 147         void setValue(int value) { m_value = value; }
 148 private:
 149         int m_value;
 150 };
 151
 152 ////////////////////////////////////////////////////////////
 153 // Constructor
 154 ////////////////////////////////////////////////////////////
 155
 156 ProcessingDialog::ProcessingDialog(FileListModel *const fileListModel, const AudioFileModel_MetaInfo *const metaInfo, const SettingsModel *const settings, QWidget *const parent)
 157 :
 158         QDialog(parent),
 159         ui(new Ui::ProcessingDialog),
 160         m_systemTray(new QSystemTrayIcon(QIcon(":/icons/cd_go.png"), this)),
 161         m_taskbar(new MUtils::Taskbar7(this)),
 162         m_settings(settings),
 163         m_metaInfo(metaInfo),
 164         m_shutdownFlag(SHUTDOWN_FLAG_NONE),
 165         m_progressViewFilter(-1),
 166         m_initThreads(0),
 167         m_defaultColor(new QColor()),
 168         m_firstShow(true)
 169 {
 170         //Init the dialog, from the .ui file
 171         ui->setupUi(this);
 172         setWindowFlags(windowFlags() ^ Qt::WindowContextHelpButtonHint);
 173
 174         //Update the window icon
 175         MUtils::GUI::set_window_icon(this, lamexp_app_icon(), true);
 176
 177         //Update header icon
 178         ui->label_headerIcon->setPixmap(lamexp_app_icon().pixmap(ui->label_headerIcon->size()));
 179
 180         //Setup version info
 181         ui->label_versionInfo->setText(QString().sprintf("v%d.%02d %s (Build %d)", lamexp_version_major(), lamexp_version_minor(), lamexp_version_release(), lamexp_version_build()));
 182         ui->label_versionInfo->installEventFilter(this);
 183
 184         //Register meta type
 185         qRegisterMetaType<QUuid>("QUuid");
 186
 187         //Center window in screen
 188         QRect desktopRect = QApplication::desktop()->screenGeometry();
 189         QRect thisRect = this->geometry();
 190         move((desktopRect.width() - thisRect.width()) / 2, (desktopRect.height() - thisRect.height()) / 2);
 191         setMinimumSize(thisRect.width(), thisRect.height());
 192
 193         //Enable buttons
 194         connect(ui->button_AbortProcess, SIGNAL(clicked()), this, SLOT(abortEncoding()));
 195
 196         //Init progress indicator
 197         m_progressIndicator.reset(new QMovie(":/images/Working.gif"));
 198         m_progressIndicator->setCacheMode(QMovie::CacheAll);
 199         ui->label_headerWorking->setMovie(m_progressIndicator.data());
 200         ui->progressBar->setValue(0);
 201
 202         //Init progress model
 203         m_progressModel.reset(new ProgressModel());
 204         ui->view_log->setModel(m_progressModel.data());
 205         ui->view_log->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 206         ui->view_log->verticalHeader()->hide();
 207         ui->view_log->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
 208         ui->view_log->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
 209         ui->view_log->viewport()->installEventFilter(this);
 210         connect(m_progressModel.data(), SIGNAL(rowsInserted(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 211         connect(m_progressModel.data(), SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), this, SLOT(progressModelChanged()));
 212         connect(m_progressModel.data(), SIGNAL(rowsRemoved(QModelIndex,int,int)), this, SLOT(progressModelChanged()));
 213         connect(m_progressModel.data(), SIGNAL(modelReset()), this, SLOT(progressModelChanged()));
 214         connect(ui->view_log, SIGNAL(activated(QModelIndex)), this, SLOT(logViewDoubleClicked(QModelIndex)));
 215         connect(ui->view_log->horizontalHeader(), SIGNAL(sectionResized(int,int,int)), this, SLOT(logViewSectionSizeChanged(int,int,int)));
 216
 217         //Create context menu
 218         m_contextMenu.reset(new QMenu());
 219         QAction *contextMenuDetailsAction  = m_contextMenu->addAction(QIcon(":/icons/zoom.png"), tr("Show details for selected job"));
 220         QAction *contextMenuShowFileAction = m_contextMenu->addAction(QIcon(":/icons/folder_go.png"), tr("Browse Output File Location"));
 221         m_contextMenu->addSeparator();
 222
 223         //Create "filter" context menu
 224         m_progressViewFilterGroup.reset(new QActionGroup(this));
 225         QAction *contextMenuFilterAction[5] = {NULL, NULL, NULL, NULL, NULL};
 226         if(QMenu *filterMenu = m_contextMenu->addMenu(QIcon(":/icons/filter.png"), tr("Filter Log Items")))
 227         {
 228                 contextMenuFilterAction[0] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobRunning), tr("Show Running Only"));
 229                 contextMenuFilterAction[1] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobComplete), tr("Show Succeeded Only"));
 230                 contextMenuFilterAction[2] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobFailed), tr("Show Failed Only"));
 231                 contextMenuFilterAction[3] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobSkipped), tr("Show Skipped Only"));
 232                 contextMenuFilterAction[4] = filterMenu->addAction(m_progressModel->getIcon(ProgressModel::JobState(-1)), tr("Show All Items"));
 233                 if(QAction *act = contextMenuFilterAction[0]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobRunning); }
 234                 if(QAction *act = contextMenuFilterAction[1]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobComplete); }
 235                 if(QAction *act = contextMenuFilterAction[2]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobFailed); }
 236                 if(QAction *act = contextMenuFilterAction[3]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(ProgressModel::JobSkipped); }
 237                 if(QAction *act = contextMenuFilterAction[4]) { m_progressViewFilterGroup->addAction(act); act->setCheckable(true); act->setData(-1); act->setChecked(true); }
 238         }
 239
 240         //Create info label
 241         m_filterInfoLabel.reset(new QLabel(ui->view_log));
 242         m_filterInfoLabel->setFrameShape(QFrame::NoFrame);
 243         m_filterInfoLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
 244         m_filterInfoLabel->setUserData(0, new IntUserData(-1));
 245         SET_FONT_BOLD(m_filterInfoLabel, true);
 246         SET_TEXT_COLOR(m_filterInfoLabel, Qt::darkGray);
 247         m_filterInfoLabel->setContextMenuPolicy(Qt::CustomContextMenu);
 248         connect(m_filterInfoLabel.data(), SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 249         m_filterInfoLabel->hide();
 250
 251         m_filterInfoLabelIcon .reset(new QLabel(ui->view_log));
 252         m_filterInfoLabelIcon->setFrameShape(QFrame::NoFrame);
 253         m_filterInfoLabelIcon->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
 254         m_filterInfoLabelIcon->setContextMenuPolicy(Qt::CustomContextMenu);
 255         const QIcon &ico = m_progressModel->getIcon(ProgressModel::JobState(-1));
 256         m_filterInfoLabelIcon->setPixmap(ico.pixmap(16, 16));
 257         connect(m_filterInfoLabelIcon.data(), SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 258         m_filterInfoLabelIcon->hide();
 259
 260         //Connect context menu
 261         ui->view_log->setContextMenuPolicy(Qt::CustomContextMenu);
 262         connect(ui->view_log, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuTriggered(QPoint)));
 263         connect(contextMenuDetailsAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuDetailsActionTriggered()));
 264         connect(contextMenuShowFileAction, SIGNAL(triggered(bool)), this, SLOT(contextMenuShowFileActionTriggered()));
 265         for(size_t i = 0; i < 5; i++)
 266         {
 267                 if(contextMenuFilterAction[i]) connect(contextMenuFilterAction[i], SIGNAL(triggered(bool)), this, SLOT(contextMenuFilterActionTriggered()));
 268         }
 269         SET_FONT_BOLD(contextMenuDetailsAction, true);
 270
 271         //Setup file extensions
 272         if(!m_settings->renameFiles_fileExtension().isEmpty())
 273         {
 274                 m_fileExts.reset(new FileExtsModel());
 275                 m_fileExts->importItems(m_settings->renameFiles_fileExtension());
 276         }
 277
 278         //Enque jobs
 279         if(fileListModel)
 280         {
 281                 for(int i = 0; i < fileListModel->rowCount(); i++)
 282                 {
 283                         m_pendingJobs.append(fileListModel->getFile(fileListModel->index(i,0)));
 284                 }
 285         }
 286
 287         //Translate
 288         ui->label_headerStatus->setText(QString("<b>%1</b><br>%2").arg(tr("Encoding Files"), tr("Your files are being encoded, please be patient...")));
 289
 290         //Enable system tray icon
 291         connect(m_systemTray.data(), SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(systemTrayActivated(QSystemTrayIcon::ActivationReason)));
 292
 293         //Init other vars
 294         m_runningThreads = 0;
 295         m_currentFile = 0;
 296         m_allJobs.clear();
 297         m_succeededJobs.clear();
 298         m_failedJobs.clear();
 299         m_skippedJobs.clear();
 300         m_userAborted = false;
 301         m_forcedAbort = false;
 302 }
 303
 304 ////////////////////////////////////////////////////////////
 305 // Destructor
 306 ////////////////////////////////////////////////////////////
 307
 308 ProcessingDialog::~ProcessingDialog(void)
 309 {
 310         ui->view_log->setModel(NULL);
 311
 312         if(!m_progressIndicator.isNull())
 313         {
 314                 m_progressIndicator->stop();
 315         }
 316
 317         if(!m_diskObserver.isNull())
 318         {
 319                 m_diskObserver->stop();
 320                 if(!m_diskObserver->wait(15000))
 321                 {
 322                         m_diskObserver->terminate();
 323                         m_diskObserver->wait();
 324                 }
 325         }
 326
 327         if(!m_cpuObserver.isNull())
 328         {
 329                 m_cpuObserver->stop();
 330                 if(!m_cpuObserver->wait(15000))
 331                 {
 332                         m_cpuObserver->terminate();
 333                         m_cpuObserver->wait();
 334                 }
 335         }
 336
 337         if(!m_ramObserver.isNull())
 338         {
 339                 m_ramObserver->stop();
 340                 if(!m_ramObserver->wait(15000))
 341                 {
 342                         m_ramObserver->terminate();
 343                         m_ramObserver->wait();
 344                 }
 345         }
 346
 347         if(!m_threadPool.isNull())
 348         {
 349                 if(!m_threadPool->waitForDone(100))
 350                 {
 351                         emit abortRunningTasks();
 352                         m_threadPool->waitForDone();
 353                 }
 354         }
 355
 356         m_taskbar->setOverlayIcon(NULL);
 357         m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NONE);
 358
 359         MUTILS_DELETE(ui);
 360 }
 361
 362 ////////////////////////////////////////////////////////////
 363 // EVENTS
 364 ////////////////////////////////////////////////////////////
 365
 366 void ProcessingDialog::showEvent(QShowEvent *event)
 367 {
 368         QDialog::showEvent(event);
 369
 370         if(m_firstShow)
 371         {
 372                 static const char *NA = " N/A";
 373
 374                 MUtils::GUI::enable_close_button(this, false);
 375                 ui->button_closeDialog->setEnabled(false);
 376                 ui->button_AbortProcess->setEnabled(false);
 377
 378                 MUtils::OS::change_process_priority(1);
 379
 380                 ui->label_cpu->setText(NA);
 381                 ui->label_disk->setText(NA);
 382                 ui->label_ram->setText(NA);
 383
 384                 QTimer::singleShot(500, this, SLOT(initEncoding()));
 385                 m_firstShow = false;
 386         }
 387
 388         //Force update geometry
 389         resizeEvent(NULL);
 390 }
 391
 392 void ProcessingDialog::closeEvent(QCloseEvent *event)
 393 {
 394         if(!ui->button_closeDialog->isEnabled())
 395         {
 396                 event->ignore();
 397         }
 398         else
 399         {
 400                 m_systemTray->setVisible(false);
 401         }
 402 }
 403
 404 bool ProcessingDialog::eventFilter(QObject *obj, QEvent *event)
 405 {
 406         if(obj == ui->label_versionInfo)
 407         {
 408                 if(event->type() == QEvent::Enter)
 409                 {
 410                         QPalette palette = ui->label_versionInfo->palette();
 411                         *m_defaultColor = palette.color(QPalette::Normal, QPalette::WindowText);
 412                         palette.setColor(QPalette::Normal, QPalette::WindowText, Qt::red);
 413                         ui->label_versionInfo->setPalette(palette);
 414                 }
 415                 else if(event->type() == QEvent::Leave)
 416                 {
 417                         QPalette palette = ui->label_versionInfo->palette();
 418                         palette.setColor(QPalette::Normal, QPalette::WindowText, *m_defaultColor);
 419                         ui->label_versionInfo->setPalette(palette);
 420                 }
 421                 else if(event->type() == QEvent::MouseButtonPress)
 422                 {
 423                         QUrl url(lamexp_website_url());
 424                         QDesktopServices::openUrl(url);
 425                 }
 426         }
 427
 428         return false;
 429 }
 430
 431 bool ProcessingDialog::event(QEvent *e)
 432 {
 433         switch(e->type())
 434         {
 435         case MUtils::GUI::USER_EVENT_QUERYENDSESSION:
 436                 qWarning("System is shutting down, preparing to abort...");
 437                 if(!m_userAborted) abortEncoding(true);
 438                 return true;
 439         case MUtils::GUI::USER_EVENT_ENDSESSION:
 440                 qWarning("System is shutting down, encoding will be aborted now...");
 441                 if(isVisible())
 442                 {
 443                         while(!close())
 444                         {
 445                                 if(!m_userAborted) abortEncoding(true);
 446                                 qApp->processEvents(QEventLoop::WaitForMoreEvents | QEventLoop::ExcludeUserInputEvents);
 447                         }
 448                 }
 449                 m_pendingJobs.clear();
 450                 return true;
 451         default:
 452                 return QDialog::event(e);
 453         }
 454 }
 455
 456 /*
 457  * Window was resized
 458  */
 459 void ProcessingDialog::resizeEvent(QResizeEvent *event)
 460 {
 461         if(event) QDialog::resizeEvent(event);
 462
 463         if(QWidget *port = ui->view_log->viewport())
 464         {
 465                 QRect geom = port->geometry();
 466                 m_filterInfoLabel->setGeometry(geom.left() + 16, geom.top() + 16, geom.width() - 32, 48);
 467                 m_filterInfoLabelIcon->setGeometry(geom.left() + 16, geom.top() + 64, geom.width() - 32, geom.height() - 80);
 468         }
 469 }
 470
 471 ////////////////////////////////////////////////////////////
 472 // SLOTS
 473 ////////////////////////////////////////////////////////////
 474
 475 void ProcessingDialog::initEncoding(void)
 476 {
 477         qDebug("Initializing encoding process...");
 478
 479         m_runningThreads = 0;
 480         m_currentFile = 0;
 481         m_allJobs.clear();
 482         m_succeededJobs.clear();
 483         m_failedJobs.clear();
 484         m_skippedJobs.clear();
 485         m_userAborted = m_forcedAbort = false;
 486         m_playList.clear();
 487         m_progressIndicator->start();
 488
 489         DecoderRegistry::configureDecoders(m_settings);
 490
 491         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor(Qt::white));
 492         SET_PROGRESS_TEXT(tr("Encoding files, please wait..."));
 493
 494         ui->button_closeDialog->setEnabled(false);
 495         ui->button_AbortProcess->setEnabled(true);
 496         ui->progressBar->setRange(0, m_pendingJobs.count());
 497         ui->checkBox_shutdownComputer->setEnabled(true);
 498         ui->checkBox_shutdownComputer->setChecked(false);
 499
 500         m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NORMAL);
 501         m_taskbar->setTaskbarProgress(0, m_pendingJobs.count());
 502         m_taskbar->setOverlayIcon(&QIcon(":/icons/control_play_blue.png"));
 503
 504         if(!m_diskObserver)
 505         {
 506                 m_diskObserver.reset(new DiskObserverThread(m_settings->customTempPathEnabled() ? m_settings->customTempPath() : MUtils::temp_folder()));
 507                 connect(m_diskObserver.data(), SIGNAL(messageLogged(QString,int)), m_progressModel.data(), SLOT(addSystemMessage(QString,int)), Qt::QueuedConnection);
 508                 connect(m_diskObserver.data(), SIGNAL(freeSpaceChanged(quint64)), this, SLOT(diskUsageHasChanged(quint64)), Qt::QueuedConnection);
 509                 m_diskObserver->start();
 510         }
 511         if(!m_cpuObserver)
 512         {
 513                 m_cpuObserver.reset(new CPUObserverThread());
 514                 connect(m_cpuObserver.data(), SIGNAL(currentUsageChanged(double)), this, SLOT(cpuUsageHasChanged(double)), Qt::QueuedConnection);
 515                 m_cpuObserver->start();
 516         }
 517         if(!m_ramObserver)
 518         {
 519                 m_ramObserver.reset(new RAMObserverThread());
 520                 connect(m_ramObserver.data(), SIGNAL(currentUsageChanged(double)), this, SLOT(ramUsageHasChanged(double)), Qt::QueuedConnection);
 521                 m_ramObserver->start();
 522         }
 523
 524         if(m_threadPool.isNull())
 525         {
 526                 unsigned int maximumInstances = qBound(0U, m_settings->maximumInstances(), MAX_INSTANCES);
 527                 if(maximumInstances < 1)
 528                 {
 529                         const MUtils::CPUFetaures::cpu_info_t cpuFeatures = MUtils::CPUFetaures::detect();
 530                         maximumInstances = cores2instances(qBound(1U, cpuFeatures.count, 64U));
 531                 }
 532
 533                 maximumInstances = qBound(1U, maximumInstances, static_cast<unsigned int>(m_pendingJobs.count()));
 534                 if(maximumInstances > 1)
 535                 {
 536                         m_progressModel->addSystemMessage(tr("Multi-threading enabled: Running %1 instances in parallel!").arg(QString::number(maximumInstances)));
 537                 }
 538
 539                 m_threadPool.reset(new QThreadPool());
 540                 m_threadPool->setMaxThreadCount(maximumInstances);
 541         }
 542
 543         m_initThreads = m_threadPool->maxThreadCount();
 544         QTimer::singleShot(100, this, SLOT(initNextJob()));
 545
 546         m_totalTime.reset(new QElapsedTimer());
 547         m_totalTime->start();
 548 }
 549
 550 void ProcessingDialog::initNextJob(void)
 551 {
 552         if((m_initThreads > 0) && (!m_userAborted))
 553         {
 554                 startNextJob();
 555                 if(--m_initThreads > 0)
 556                 {
 557                         QTimer::singleShot(32, this, SLOT(initNextJob()));
 558                 }
 559         }
 560 }
 561
 562 void ProcessingDialog::startNextJob(void)
 563 {
 564         if(m_pendingJobs.isEmpty())
 565         {
 566                 qWarning("No more files left, unable to start another job!");
 567                 return;
 568         }
 569
 570         m_currentFile++;
 571         m_runningThreads++;
 572
 573         AudioFileModel currentFile = updateMetaInfo(m_pendingJobs.takeFirst());
 574
 575         //Create encoder instance
 576         AbstractEncoder *encoder = EncoderRegistry::createInstance(m_settings->compressionEncoder(), m_settings);
 577
 578         //Create processing thread
 579         ProcessThread *thread = new ProcessThread
 580         (
 581                 currentFile,
 582                 (m_settings->outputToSourceDir() ? QFileInfo(currentFile.filePath()).absolutePath() : m_settings->outputDir()),
 583                 (m_settings->customTempPathEnabled() ? m_settings->customTempPath() : MUtils::temp_folder()),
 584                 encoder,
 585                 m_settings->prependRelativeSourcePath() && (!m_settings->outputToSourceDir())
 586         );
 587
 588         //Add audio filters
 589         if(m_settings->forceStereoDownmix())
 590         {
 591                 thread->addFilter(new DownmixFilter());
 592         }
 593         if(m_settings->samplingRate() > 0)
 594         {
 595                 const int targetRate = SettingsModel::samplingRates[qBound(1, m_settings->samplingRate(), 6)];
 596                 if((targetRate != currentFile.techInfo().audioSamplerate()) || (currentFile.techInfo().audioSamplerate() == 0))
 597                 {
 598                         if (encoder->toEncoderInfo()->isResamplingSupported())
 599                         {
 600                                 encoder->setSamplingRate(targetRate);
 601                         }
 602                         else
 603                         {
 604                                 thread->addFilter(new ResampleFilter(targetRate));
 605                         }
 606                 }
 607         }
 608         if((m_settings->toneAdjustBass() != 0) || (m_settings->toneAdjustTreble() != 0))
 609         {
 610                 thread->addFilter(new ToneAdjustFilter(m_settings->toneAdjustBass(), m_settings->toneAdjustTreble()));
 611         }
 612         if(m_settings->normalizationFilterEnabled())
 613         {
 614                 thread->addFilter(new NormalizeFilter(m_settings->normalizationFilterMaxVolume(), m_settings->normalizationFilterDynamic(), m_settings->normalizationFilterCoupled(), m_settings->normalizationFilterSize()));
 615         }
 616         if(m_settings->renameFiles_renameEnabled() && (!m_settings->renameFiles_renamePattern().simplified().isEmpty()))
 617         {
 618                 thread->setRenamePattern(m_settings->renameFiles_renamePattern());
 619         }
 620         if(m_settings->renameFiles_regExpEnabled() && (!m_settings->renameFiles_regExpSearch().trimmed().isEmpty()) && (!m_settings->renameFiles_regExpReplace().simplified().isEmpty()))
 621         {
 622                 thread->setRenameRegExp(m_settings->renameFiles_regExpSearch(), m_settings->renameFiles_regExpReplace());
 623         }
 624         if(!m_fileExts.isNull())
 625         {
 626                 thread->setRenameFileExt(m_fileExts->apply(QString::fromUtf8(EncoderRegistry::getEncoderInfo(m_settings->compressionEncoder())->extension())));
 627         }
 628         if(m_settings->overwriteMode() != SettingsModel::Overwrite_KeepBoth)
 629         {
 630                 thread->setOverwriteMode((m_settings->overwriteMode() == SettingsModel::Overwrite_SkipFile), (m_settings->overwriteMode() == SettingsModel::Overwrite_Replaces));
 631         }
 632         if (m_settings->keepOriginalDataTime())
 633         {
 634                 thread->setKeepDateTime(m_settings->keepOriginalDataTime());
 635         }
 636
 637         m_allJobs.append(thread->getId());
 638
 639         //Connect thread signals
 640         connect(thread, SIGNAL(processFinished()), this, SLOT(doneEncoding()), Qt::QueuedConnection);
 641         connect(thread, SIGNAL(processStateInitialized(QUuid,QString,QString,int)), m_progressModel.data(), SLOT(addJob(QUuid,QString,QString,int)), Qt::QueuedConnection);
 642         connect(thread, SIGNAL(processStateChanged(QUuid,QString,int)), m_progressModel.data(), SLOT(updateJob(QUuid,QString,int)), Qt::QueuedConnection);
 643         connect(thread, SIGNAL(processStateFinished(QUuid,QString,int)), this, SLOT(processFinished(QUuid,QString,int)), Qt::QueuedConnection);
 644         connect(thread, SIGNAL(processMessageLogged(QUuid,QString)), m_progressModel.data(), SLOT(appendToLog(QUuid,QString)), Qt::QueuedConnection);
 645         connect(this, SIGNAL(abortRunningTasks()), thread, SLOT(abort()), Qt::DirectConnection);
 646
 647         //Initialize thread object
 648         if(!thread->init())
 649         {
 650                 qFatal("Fatal Error: Thread initialization has failed!");
 651         }
 652
 653         //Give it a go!
 654         if(!thread->start(m_threadPool.data()))
 655         {
 656                 qWarning("Job failed to start or file was skipped!");
 657         }
 658 }
 659
 660 void ProcessingDialog::abortEncoding(bool force)
 661 {
 662         m_userAborted = true;
 663         if(force) m_forcedAbort = true;
 664         ui->button_AbortProcess->setEnabled(false);
 665         SET_PROGRESS_TEXT(tr("Aborted! Waiting for running jobs to terminate..."));
 666         emit abortRunningTasks();
 667 }
 668
 669 void ProcessingDialog::doneEncoding(void)
 670 {
 671         m_runningThreads--;
 672         ui->progressBar->setValue(ui->progressBar->value() + 1);
 673
 674         if(!m_userAborted)
 675         {
 676                 SET_PROGRESS_TEXT(tr("Encoding: %n file(s) of %1 completed so far, please wait...", "", ui->progressBar->value()).arg(QString::number(ui->progressBar->maximum())));
 677                 m_taskbar->setTaskbarProgress(ui->progressBar->value(), ui->progressBar->maximum());
 678         }
 679
 680         if((!m_pendingJobs.isEmpty()) && (!m_userAborted))
 681         {
 682                 QTimer::singleShot(0, this, SLOT(startNextJob()));
 683                 qDebug("%d files left, starting next job...", m_pendingJobs.count());
 684                 return;
 685         }
 686
 687         if(m_runningThreads > 0)
 688         {
 689                 qDebug("No files left, but still have %u running jobs.", m_runningThreads);
 690                 return;
 691         }
 692
 693         QApplication::setOverrideCursor(Qt::WaitCursor);
 694         qDebug("Running jobs: %u", m_runningThreads);
 695
 696         if(!m_userAborted && m_settings->createPlaylist() && !m_settings->outputToSourceDir())
 697         {
 698                 SET_PROGRESS_TEXT(tr("Creating the playlist file, please wait..."));
 699                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 700                 writePlayList();
 701         }
 702
 703         if(m_userAborted)
 704         {
 705                 CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#FFFFE0"));
 706                 m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_ERROR);
 707                 m_taskbar->setOverlayIcon(&QIcon(":/icons/error.png"));
 708                 SET_PROGRESS_TEXT((m_succeededJobs.count() > 0) ? tr("Process was aborted by the user after %n file(s)!", "", m_succeededJobs.count()) : tr("Process was aborted prematurely by the user!"));
 709                 m_systemTray->showMessage(tr("LameXP - Aborted"), tr("Process was aborted by the user."), QSystemTrayIcon::Warning);
 710                 m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 711                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 712                 if(!m_forcedAbort) PLAY_SOUND_OPTIONAL("aborted", false);
 713         }
 714         else
 715         {
 716                 if((!m_totalTime.isNull()) && m_totalTime->isValid())
 717                 {
 718                         m_progressModel->addSystemMessage(tr("Process finished after %1.").arg(time2text(m_totalTime->elapsed())), ProgressModel::SysMsg_Performance);
 719                         m_totalTime->invalidate();
 720                 }
 721
 722                 if(m_failedJobs.count() > 0)
 723                 {
 724                         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#FFF0F0"));
 725                         m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_ERROR);
 726                         m_taskbar->setOverlayIcon(&QIcon(":/icons/exclamation.png"));
 727                         if(m_skippedJobs.count() > 0)
 728                         {
 729                                 SET_PROGRESS_TEXT(tr("Error: %1 of %n file(s) failed (%2). Double-click failed items for detailed information!", "", m_failedJobs.count() + m_succeededJobs.count() + m_skippedJobs.count()).arg(QString::number(m_failedJobs.count()), tr("%n file(s) skipped", "", m_skippedJobs.count())));
 730                         }
 731                         else
 732                         {
 733                                 SET_PROGRESS_TEXT(tr("Error: %1 of %n file(s) failed. Double-click failed items for detailed information!", "", m_failedJobs.count() + m_succeededJobs.count()).arg(QString::number(m_failedJobs.count())));
 734                         }
 735                         m_systemTray->showMessage(tr("LameXP - Error"), tr("At least one file has failed!"), QSystemTrayIcon::Critical);
 736                         m_systemTray->setIcon(QIcon(":/icons/cd_delete.png"));
 737                         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 738                         PLAY_SOUND_OPTIONAL("error", false);
 739                 }
 740                 else
 741                 {
 742                         CHANGE_BACKGROUND_COLOR(ui->frame_header, QColor("#F0FFF0"));
 743                         m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NORMAL);
 744                         m_taskbar->setOverlayIcon(&QIcon(":/icons/accept.png"));
 745                         if(m_skippedJobs.count() > 0)
 746                         {
 747                                 SET_PROGRESS_TEXT(tr("All files completed successfully. Skipped %n file(s).", "", m_skippedJobs.count()));
 748                         }
 749                         else
 750                         {
 751                                 SET_PROGRESS_TEXT(tr("All files completed successfully."));
 752                         }
 753                         m_systemTray->showMessage(tr("LameXP - Done"), tr("All files completed successfully."), QSystemTrayIcon::Information);
 754                         m_systemTray->setIcon(QIcon(":/icons/cd_add.png"));
 755                         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
 756                         PLAY_SOUND_OPTIONAL("success", false);
 757                 }
 758         }
 759
 760         MUtils::GUI::enable_close_button(this, true);
 761         ui->button_closeDialog->setEnabled(true);
 762         ui->button_AbortProcess->setEnabled(false);
 763         ui->checkBox_shutdownComputer->setEnabled(false);
 764
 765         m_progressModel->restoreHiddenItems();
 766         ui->view_log->scrollToBottom();
 767         m_progressIndicator->stop();
 768         ui->progressBar->setValue(ui->progressBar->maximum());
 769         m_taskbar->setTaskbarProgress(ui->progressBar->value(), ui->progressBar->maximum());
 770
 771         QApplication::restoreOverrideCursor();
 772
 773         if(!m_userAborted && ui->checkBox_shutdownComputer->isChecked())
 774         {
 775                 if(shutdownComputer())
 776                 {
 777                         m_shutdownFlag = m_settings->hibernateComputer() ? SHUTDOWN_FLAG_HIBERNATE : SHUTDOWN_FLAG_POWER_OFF;
 778                         accept();
 779                 }
 780         }
 781 }
 782
 783 void ProcessingDialog::processFinished(const QUuid &jobId, const QString &outFileName, int success)
 784 {
 785         if(success > 0)
 786         {
 787                 m_playList.insert(jobId, outFileName);
 788                 m_succeededJobs.append(jobId);
 789         }
 790         else if(success < 0)
 791         {
 792                 m_playList.insert(jobId, outFileName);
 793                 m_skippedJobs.append(jobId);
 794         }
 795         else
 796         {
 797                 m_failedJobs.append(jobId);
 798         }
 799
 800         //Update filter as soon as a job finished!
 801         if(m_progressViewFilter >= 0)
 802         {
 803                 QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 804         }
 805 }
 806
 807 void ProcessingDialog::progressModelChanged(void)
 808 {
 809         //Update filter as soon as the model changes!
 810         if(m_progressViewFilter >= 0)
 811         {
 812                 QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 813         }
 814
 815         QTimer::singleShot(0, ui->view_log, SLOT(scrollToBottom()));
 816 }
 817
 818 void ProcessingDialog::logViewDoubleClicked(const QModelIndex &index)
 819 {
 820         if(m_runningThreads == 0)
 821         {
 822                 const QStringList &logFile = m_progressModel->getLogFile(index);
 823
 824                 if(!logFile.isEmpty())
 825                 {
 826                         LogViewDialog *logView = new LogViewDialog(this);
 827                         logView->setWindowTitle(QString("LameXP - [%1]").arg(m_progressModel->data(index, Qt::DisplayRole).toString()));
 828                         logView->exec(logFile);
 829                         MUTILS_DELETE(logView);
 830                 }
 831                 else
 832                 {
 833                         QMessageBox::information(this, windowTitle(), m_progressModel->data(m_progressModel->index(index.row(), 0)).toString());
 834                 }
 835         }
 836         else
 837         {
 838                 MUtils::Sound::beep(MUtils::Sound::BEEP_WRN);
 839         }
 840 }
 841
 842 void ProcessingDialog::logViewSectionSizeChanged(int logicalIndex, int oldSize, int newSize)
 843 {
 844         if(logicalIndex == 1)
 845         {
 846                 if(QHeaderView *hdr = ui->view_log->horizontalHeader())
 847                 {
 848                         hdr->setMinimumSectionSize(qMax(hdr->minimumSectionSize(), hdr->sectionSize(1)));
 849                 }
 850         }
 851 }
 852
 853 void ProcessingDialog::contextMenuTriggered(const QPoint &pos)
 854 {
 855         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 856         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 857
 858         if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 859         {
 860                 m_contextMenu->popup(sender->mapToGlobal(pos));
 861         }
 862 }
 863
 864 void ProcessingDialog::contextMenuDetailsActionTriggered(void)
 865 {
 866         QModelIndex index = ui->view_log->indexAt(ui->view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 867         logViewDoubleClicked(index.isValid() ? index : ui->view_log->currentIndex());
 868 }
 869
 870 void ProcessingDialog::contextMenuShowFileActionTriggered(void)
 871 {
 872         QModelIndex index = ui->view_log->indexAt(ui->view_log->viewport()->mapFromGlobal(m_contextMenu->pos()));
 873         const QUuid &jobId = m_progressModel->getJobId(index.isValid() ? index : ui->view_log->currentIndex());
 874         QString filePath = m_playList.value(jobId, QString());
 875
 876         if(filePath.isEmpty())
 877         {
 878                 MUtils::Sound::beep(MUtils::Sound::BEEP_WRN);
 879                 return;
 880         }
 881
 882         if(QFileInfo(filePath).exists())
 883         {
 884                 QString systemRootPath;
 885
 886                 QDir systemRoot(MUtils::OS::known_folder(MUtils::OS::FOLDER_SYSTEMFOLDER));
 887                 if(systemRoot.exists() && systemRoot.cdUp())
 888                 {
 889                         systemRootPath = systemRoot.canonicalPath();
 890                 }
 891
 892                 if(!systemRootPath.isEmpty())
 893                 {
 894                         QFileInfo explorer(QString("%1/explorer.exe").arg(systemRootPath));
 895                         if(explorer.exists() && explorer.isFile())
 896                         {
 897                                 QProcess::execute(explorer.canonicalFilePath(), QStringList() << "/select," << QDir::toNativeSeparators(QFileInfo(filePath).canonicalFilePath()));
 898                                 return;
 899                         }
 900                 }
 901                 else
 902                 {
 903                         qWarning("SystemRoot directory could not be detected!");
 904                 }
 905         }
 906         else
 907         {
 908                 qWarning("File not found: %s", filePath.toLatin1().constData());
 909                 MUtils::Sound::beep(MUtils::Sound::BEEP_ERR);
 910         }
 911 }
 912
 913 void ProcessingDialog::contextMenuFilterActionTriggered(void)
 914 {
 915         if(QAction *action = dynamic_cast<QAction*>(QObject::sender()))
 916         {
 917                 if(action->data().type() == QVariant::Int)
 918                 {
 919                         m_progressViewFilter = action->data().toInt();
 920                         progressViewFilterChanged();
 921                         QTimer::singleShot(0, this, SLOT(progressViewFilterChanged()));
 922                         QTimer::singleShot(0, ui->view_log, SLOT(scrollToBottom()));
 923                         action->setChecked(true);
 924                 }
 925         }
 926 }
 927
 928 /*
 929  * Filter progress items
 930  */
 931 void ProcessingDialog::progressViewFilterChanged(void)
 932 {
 933         bool matchFound = false;
 934
 935         for(int i = 0; i < ui->view_log->model()->rowCount(); i++)
 936         {
 937                 QModelIndex index = (m_progressViewFilter >= 0) ? m_progressModel->index(i, 0) : QModelIndex();
 938                 const bool bHide = index.isValid() ? (m_progressModel->getJobState(index) != m_progressViewFilter) : false;
 939                 ui->view_log->setRowHidden(i, bHide); matchFound = matchFound || (!bHide);
 940         }
 941
 942         if((m_progressViewFilter >= 0) && (!matchFound))
 943         {
 944                 if(m_filterInfoLabel->isHidden() || (dynamic_cast<IntUserData*>(m_filterInfoLabel->userData(0))->value() != m_progressViewFilter))
 945                 {
 946                         dynamic_cast<IntUserData*>(m_filterInfoLabel->userData(0))->setValue(m_progressViewFilter);
 947                         m_filterInfoLabel->setText(QString("<p>&raquo; %1 &laquo;</p>").arg(tr("None of the items matches the current filtering rules")));
 948                         m_filterInfoLabel->show();
 949                         m_filterInfoLabelIcon->setPixmap(m_progressModel->getIcon(static_cast<ProgressModel::JobState>(m_progressViewFilter)).pixmap(16, 16, QIcon::Disabled));
 950                         m_filterInfoLabelIcon->show();
 951                         resizeEvent(NULL);
 952                 }
 953         }
 954         else if(!m_filterInfoLabel->isHidden())
 955         {
 956                 m_filterInfoLabel->hide();
 957                 m_filterInfoLabelIcon->hide();
 958         }
 959 }
 960
 961 ////////////////////////////////////////////////////////////
 962 // Private Functions
 963 ////////////////////////////////////////////////////////////
 964
 965 void ProcessingDialog::writePlayList(void)
 966 {
 967         if(m_succeededJobs.count() <= 0 || m_allJobs.count() <= 0)
 968         {
 969                 qWarning("WritePlayList: Nothing to do!");
 970                 return;
 971         }
 972
 973         //Init local variables
 974         QStringList list;
 975         QRegExp regExp1("\\[\\d\\d\\][^/\\\\]+$", Qt::CaseInsensitive);
 976         QRegExp regExp2("\\(\\d\\d\\)[^/\\\\]+$", Qt::CaseInsensitive);
 977         QRegExp regExp3("\\d\\d[^/\\\\]+$", Qt::CaseInsensitive);
 978         bool usePrefix[3] = {true, true, true};
 979         bool useUtf8 = false;
 980         int counter = 1;
 981
 982         //Generate playlist name
 983         QString playListName = (m_metaInfo->album().isEmpty() ? "Playlist" : m_metaInfo->album());
 984         if(!m_metaInfo->artist().isEmpty())
 985         {
 986                 playListName = QString("%1 - %2").arg(m_metaInfo->artist(), playListName);
 987         }
 988
 989         //Clean playlist name
 990         playListName = MUtils::clean_file_name(playListName);
 991
 992         //Create list of audio files
 993         for(int i = 0; i < m_allJobs.count(); i++)
 994         {
 995                 if(!m_succeededJobs.contains(m_allJobs.at(i))) continue;
 996                 list << QDir::toNativeSeparators(QDir(m_settings->outputDir()).relativeFilePath(m_playList.value(m_allJobs.at(i), "N/A")));
 997         }
 998
 999         //Use prefix?
1000         for(int i = 0; i < list.count(); i++)
1001         {
1002                 if(regExp1.indexIn(list.at(i)) < 0) usePrefix[0] = false;
1003                 if(regExp2.indexIn(list.at(i)) < 0) usePrefix[1] = false;
1004                 if(regExp3.indexIn(list.at(i)) < 0) usePrefix[2] = false;
1005         }
1006         if(usePrefix[0] || usePrefix[1] || usePrefix[2])
1007         {
1008                 playListName.prepend(usePrefix[0] ? "[00] " : (usePrefix[1] ? "(00) " : "00 "));
1009         }
1010
1011         //Do we need an UTF-8 playlist?
1012         for(int i = 0; i < list.count(); i++)
1013         {
1014                 if(wcscmp(MUTILS_WCHR(QString::fromLatin1(list.at(i).toLatin1().constData())), MUTILS_WCHR(list.at(i))))
1015                 {
1016                         useUtf8 = true;
1017                         break;
1018                 }
1019         }
1020
1021         //Generate playlist output file
1022         QString playListFile = QString("%1/%2.%3").arg(m_settings->outputDir(), playListName, (useUtf8 ? "m3u8" : "m3u"));
1023         while(QFileInfo(playListFile).exists())
1024         {
1025                 playListFile = QString("%1/%2 (%3).%4").arg(m_settings->outputDir(), playListName, QString::number(++counter), (useUtf8 ? "m3u8" : "m3u"));
1026         }
1027
1028         //Now write playlist to output file
1029         QFile playList(playListFile);
1030         if(playList.open(QIODevice::WriteOnly))
1031         {
1032                 if(useUtf8)
1033                 {
1034                         playList.write("\xef\xbb\xbf");
1035                 }
1036                 playList.write("#EXTM3U\r\n");
1037                 while(!list.isEmpty())
1038                 {
1039                         playList.write(useUtf8 ? MUTILS_UTF8(list.takeFirst()) : list.takeFirst().toLatin1().constData());
1040                         playList.write("\r\n");
1041                 }
1042                 playList.close();
1043         }
1044         else
1045         {
1046                 QMessageBox::warning(this, tr("Playlist creation failed"), QString("%1<br><nobr>%2</nobr>").arg(tr("The playlist file could not be created:"), playListFile));
1047         }
1048 }
1049
1050 AudioFileModel ProcessingDialog::updateMetaInfo(AudioFileModel &audioFile)
1051 {
1052         if(!m_settings->writeMetaTags())
1053         {
1054                 audioFile.metaInfo().reset();
1055                 return audioFile;
1056         }
1057
1058         audioFile.metaInfo().update(*m_metaInfo, true);
1059
1060         if(audioFile.metaInfo().position() == UINT_MAX)
1061         {
1062                 audioFile.metaInfo().setPosition(m_currentFile);
1063         }
1064
1065         return audioFile;
1066 }
1067
1068 void ProcessingDialog::systemTrayActivated(QSystemTrayIcon::ActivationReason reason)
1069 {
1070         if(reason == QSystemTrayIcon::DoubleClick)
1071         {
1072                 MUtils::GUI::bring_to_front(this);
1073         }
1074 }
1075
1076 void ProcessingDialog::cpuUsageHasChanged(const double val)
1077 {
1078
1079         ui->label_cpu->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
1080         UPDATE_MIN_WIDTH(ui->label_cpu);
1081 }
1082
1083 void ProcessingDialog::ramUsageHasChanged(const double val)
1084 {
1085
1086         ui->label_ram->setText(QString().sprintf(" %d%%", qRound(val * 100.0)));
1087         UPDATE_MIN_WIDTH(ui->label_ram);
1088 }
1089
1090 void ProcessingDialog::diskUsageHasChanged(const quint64 val)
1091 {
1092         int postfix = 0;
1093         const char *postfixStr[6] = {"B", "KB", "MB", "GB", "TB", "PB"};
1094         double space = static_cast<double>(val);
1095
1096         while((space >= 1000.0) && (postfix < 5))
1097         {
1098                 space = space / 1024.0;
1099                 postfix++;
1100         }
1101
1102         ui->label_disk->setText(QString().sprintf(" %3.1f %s", space, postfixStr[postfix]));
1103         UPDATE_MIN_WIDTH(ui->label_disk);
1104 }
1105
1106 bool ProcessingDialog::shutdownComputer(void)
1107 {
1108         const int iTimeout = m_settings->hibernateComputer() ? 10 : 30;
1109         const Qt::WindowFlags flags = Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::MSWindowsFixedSizeDialogHint | Qt::WindowSystemMenuHint;
1110         const QString text = QString("%1%2%1").arg(QString().fill(' ', 18), tr("Warning: Computer will shutdown in %1 seconds..."));
1111
1112         qWarning("Initiating shutdown sequence!");
1113
1114         QProgressDialog progressDialog(text.arg(iTimeout), tr("Cancel Shutdown"), 0, iTimeout + 1, this, flags);
1115         QPushButton *cancelButton = new QPushButton(tr("Cancel Shutdown"), &progressDialog);
1116         cancelButton->setIcon(QIcon(":/icons/power_on.png"));
1117         progressDialog.setModal(true);
1118         progressDialog.setAutoClose(false);
1119         progressDialog.setAutoReset(false);
1120         progressDialog.setWindowIcon(QIcon(":/icons/power_off.png"));
1121         progressDialog.setCancelButton(cancelButton);
1122         progressDialog.show();
1123
1124         qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
1125
1126         QApplication::setOverrideCursor(Qt::WaitCursor);
1127         PLAY_SOUND_OPTIONAL("shutdown", false);
1128         QApplication::restoreOverrideCursor();
1129
1130         QTimer timer;
1131         timer.setInterval(1000);
1132         timer.start();
1133
1134         QEventLoop eventLoop(this);
1135         connect(&timer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
1136         connect(&progressDialog, SIGNAL(canceled()), &eventLoop, SLOT(quit()));
1137
1138         for(int i = 1; i <= iTimeout; i++)
1139         {
1140                 eventLoop.exec();
1141                 if(progressDialog.wasCanceled())
1142                 {
1143                         progressDialog.close();
1144                         return false;
1145                 }
1146                 progressDialog.setValue(i+1);
1147                 progressDialog.setLabelText(text.arg(iTimeout-i));
1148                 if(iTimeout-i == 3) progressDialog.setCancelButton(NULL);
1149                 qApp->processEvents(QEventLoop::ExcludeUserInputEvents);
1150                 PLAY_SOUND_OPTIONAL(((i < iTimeout) ? "beep" : "beep2"), false);
1151         }
1152
1153         progressDialog.close();
1154         return true;
1155 }
1156
1157 QString ProcessingDialog::time2text(const qint64 &msec) const
1158 {
1159         const qint64 MILLISECONDS_PER_DAY = 86399999;   //24x60x60x1000 - 1
1160         const QTime time = QTime().addMSecs(qMin(msec, MILLISECONDS_PER_DAY));
1161
1162         QString a, b;
1163
1164         if(time.hour() > 0)
1165         {
1166                 a = tr("%n hour(s)",   "", time.hour());
1167                 b = tr("%n minute(s)", "", time.minute());
1168         }
1169         else if(time.minute() > 0)
1170         {
1171                 a = tr("%n minute(s)", "", time.minute());
1172                 b = tr("%n second(s)", "", time.second());
1173         }
1174         else
1175         {
1176                 a = tr("%n second(s)",      "", time.second());
1177                 b = tr("%n millisecond(s)", "", time.msec());
1178         }
1179
1180         return QString("%1, %2").arg(a, b);
1181 }
1182
1183 ////////////////////////////////////////////////////////////
1184 // HELPER FUNCTIONS
1185 ////////////////////////////////////////////////////////////
1186
1187 static int cores2instances(int cores)
1188 {
1189         //This function is a "cubic spline" with sampling points at:
1190         //(1,1); (2,2); (4,4); (8,6); (16,8); (32,11); (64,16)
1191         static const double LUT[8][5] =
1192         {
1193                 { 1.0,  0.014353554, -0.043060662, 1.028707108,  0.000000000},
1194                 { 2.0, -0.028707108,  0.215303309, 0.511979167,  0.344485294},
1195                 { 4.0,  0.010016468, -0.249379596, 2.370710784, -2.133823529},
1196                 { 8.0,  0.000282437, -0.015762868, 0.501776961,  2.850000000},
1197                 {16.0,  0.000033270, -0.003802849, 0.310416667,  3.870588235},
1198                 {32.0,  0.000006343, -0.001217831, 0.227696078,  4.752941176},
1199                 {64.0,  0.000000000,  0.000000000, 0.000000000, 16.000000000},
1200                 {DBL_MAX, 0.0, 0.0, 0.0, 0.0}
1201         };
1202
1203         double x = abs(static_cast<double>(cores)), y = 1.0;
1204
1205         for(size_t i = 0; i < 7; i++)
1206         {
1207                 if((x >= LUT[i][0]) && (x < LUT[i+1][0]))
1208                 {
1209                         y = (((((LUT[i][1] * x) + LUT[i][2]) * x) + LUT[i][3]) * x) + LUT[i][4];
1210                         break;
1211                 }
1212         }
1213
1214         return qRound(y);
1215 }