src/Thread_Process.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2015 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 "Thread_Process.h"
  24
  25 //Internal
  26 #include "Global.h"
  27 #include "Model_AudioFile.h"
  28 #include "Model_Progress.h"
  29 #include "Encoder_Abstract.h"
  30 #include "Decoder_Abstract.h"
  31 #include "Filter_Abstract.h"
  32 #include "Filter_Downmix.h"
  33 #include "Filter_Resample.h"
  34 #include "Tool_WaveProperties.h"
  35 #include "Registry_Decoder.h"
  36 #include "Model_Settings.h"
  37
  38 //MUtils
  39 #include <MUtils/Global.h>
  40 #include <MUtils/OSSupport.h>
  41 #include <MUtils/Version.h>
  42
  43 //Qt
  44 #include <QUuid>
  45 #include <QFileInfo>
  46 #include <QDir>
  47 #include <QMutex>
  48 #include <QMutexLocker>
  49 #include <QDate>
  50 #include <QThreadPool>
  51
  52 //CRT
  53 #include <limits.h>
  54 #include <time.h>
  55 #include <stdlib.h>
  56
  57 #define DIFF(X,Y) ((X > Y) ? (X-Y) : (Y-X))
  58 #define IS_WAVE(X) ((X.containerType().compare("Wave", Qt::CaseInsensitive) == 0) && (X.audioType().compare("PCM", Qt::CaseInsensitive) == 0))
  59 #define STRDEF(STR,DEF) ((!STR.isEmpty()) ? STR : DEF)
  60
  61 ////////////////////////////////////////////////////////////
  62 // Constructor
  63 ////////////////////////////////////////////////////////////
  64
  65 ProcessThread::ProcessThread(const AudioFileModel &audioFile, const QString &outputDirectory, const QString &tempDirectory, AbstractEncoder *encoder, const bool prependRelativeSourcePath)
  66 :
  67         m_audioFile(audioFile),
  68         m_outputDirectory(outputDirectory),
  69         m_tempDirectory(tempDirectory),
  70         m_encoder(encoder),
  71         m_jobId(QUuid::createUuid()),
  72         m_prependRelativeSourcePath(prependRelativeSourcePath),
  73         m_renamePattern("<BaseName>"),
  74         m_overwriteMode(OverwriteMode_KeepBoth),
  75         m_keepDateTime(false),
  76         m_initialized(-1),
  77         m_aborted(false),
  78         m_propDetect(new WaveProperties())
  79 {
  80         connect(m_encoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
  81         connect(m_encoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
  82
  83         connect(m_propDetect, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
  84         connect(m_propDetect, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
  85
  86         m_currentStep = UnknownStep;
  87 }
  88
  89 ProcessThread::~ProcessThread(void)
  90 {
  91         while(!m_tempFiles.isEmpty())
  92         {
  93                 MUtils::remove_file(m_tempFiles.takeFirst());
  94         }
  95
  96         while(!m_filters.isEmpty())
  97         {
  98                 delete m_filters.takeFirst();
  99         }
 100
 101         MUTILS_DELETE(m_encoder);
 102         MUTILS_DELETE(m_propDetect);
 103
 104         emit processFinished();
 105 }
 106
 107 ////////////////////////////////////////////////////////////
 108 // Init Function
 109 ////////////////////////////////////////////////////////////
 110
 111 bool ProcessThread::init(void)
 112 {
 113         if(m_initialized < 0)
 114         {
 115                 m_initialized = 0;
 116
 117                 //Initialize job status
 118                 qDebug("Process thread %s has started.", m_jobId.toString().toLatin1().constData());
 119                 emit processStateInitialized(m_jobId, QFileInfo(m_audioFile.filePath()).fileName(), tr("Starting..."), ProgressModel::JobRunning);
 120
 121                 //Initialize log
 122                 handleMessage(QString().sprintf("LameXP v%u.%02u (Build #%u), compiled on %s at %s", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), MUTILS_UTF8(MUtils::Version::app_build_date().toString(Qt::ISODate)), MUTILS_UTF8(MUtils::Version::app_build_time().toString(Qt::ISODate))));
 123                 handleMessage("\n-------------------------------\n");
 124
 125                 return true;
 126         }
 127
 128         qWarning("[ProcessThread::init] Job %s already initialialized, skipping!", m_jobId.toString().toLatin1().constData());
 129         return false;
 130 }
 131
 132 bool ProcessThread::start(QThreadPool *const pool)
 133 {
 134         //Make sure object was initialized correctly
 135         if(m_initialized < 0)
 136         {
 137                 MUTILS_THROW("Object not initialized yet!");
 138         }
 139
 140         if(m_initialized < 1)
 141         {
 142                 m_initialized = 1;
 143
 144                 m_outFileName.clear();
 145                 bool bSuccess = false;
 146
 147                 //Generate output file name
 148                 switch(generateOutFileName(m_outFileName))
 149                 {
 150                 case 1:
 151                         //File name generated successfully :-)
 152                         bSuccess = true;
 153                         pool->start(this);
 154                         break;
 155                 case -1:
 156                         //File name already exists -> skipping!
 157                         emit processStateChanged(m_jobId, tr("Skipped."), ProgressModel::JobSkipped);
 158                         emit processStateFinished(m_jobId, m_outFileName, -1);
 159                         break;
 160                 default:
 161                         //File name could not be generated
 162                         emit processStateChanged(m_jobId, tr("Not found!"), ProgressModel::JobFailed);
 163                         emit processStateFinished(m_jobId, m_outFileName, 0);
 164                         break;
 165                 }
 166
 167                 if(!bSuccess)
 168                 {
 169                         emit processFinished();
 170                 }
 171
 172                 return bSuccess;
 173         }
 174
 175         qWarning("[ProcessThread::start] Job %s already started, skipping!", m_jobId.toString().toLatin1().constData());
 176         return false;
 177 }
 178
 179 ////////////////////////////////////////////////////////////
 180 // Thread Entry Point
 181 ////////////////////////////////////////////////////////////
 182
 183 void ProcessThread::run()
 184 {
 185         try
 186         {
 187                 processFile();
 188         }
 189         catch(const std::exception &error)
 190         {
 191                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
 192                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 193         }
 194         catch(...)
 195         {
 196                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
 197                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 198         }
 199 }
 200
 201 void ProcessThread::processFile()
 202 {
 203         m_aborted = false;
 204         bool bSuccess = true;
 205
 206         //Make sure object was initialized correctly
 207         if(m_initialized < 1)
 208         {
 209                 MUTILS_THROW("Object not initialized yet!");
 210         }
 211
 212         QString sourceFile = m_audioFile.filePath();
 213
 214         //-----------------------------------------------------
 215         // Decode source file
 216         //-----------------------------------------------------
 217
 218         const AudioFileModel_TechInfo &formatInfo = m_audioFile.techInfo();
 219         if(!m_filters.isEmpty() || !m_encoder->isFormatSupported(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion()))
 220         {
 221                 m_currentStep = DecodingStep;
 222                 AbstractDecoder *decoder = DecoderRegistry::lookup(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion());
 223
 224                 if(decoder)
 225                 {
 226                         QString tempFile = generateTempFileName();
 227
 228                         connect(decoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 229                         connect(decoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 230
 231                         bSuccess = decoder->decode(sourceFile, tempFile, &m_aborted);
 232                         MUTILS_DELETE(decoder);
 233
 234                         if(bSuccess)
 235                         {
 236                                 sourceFile = tempFile;
 237                                 m_audioFile.techInfo().setContainerType(QString::fromLatin1("Wave"));
 238                                 m_audioFile.techInfo().setAudioType(QString::fromLatin1("PCM"));
 239
 240                                 if(QFileInfo(sourceFile).size() >= 4294967296i64)
 241                                 {
 242                                         handleMessage(tr("WARNING: Decoded file size exceeds 4 GB, problems might occur!\n"));
 243                                 }
 244
 245                                 handleMessage("\n-------------------------------\n");
 246                         }
 247                 }
 248                 else
 249                 {
 250                         if(QFileInfo(m_outFileName).exists() && (QFileInfo(m_outFileName).size() < 512)) QFile::remove(m_outFileName);
 251                         handleMessage(QString("%1\n%2\n\n%3\t%4\n%5\t%6").arg(tr("The format of this file is NOT supported:"), m_audioFile.filePath(), tr("Container Format:"), m_audioFile.containerInfo(), tr("Audio Format:"), m_audioFile.audioCompressInfo()));
 252                         emit processStateChanged(m_jobId, tr("Unsupported!"), ProgressModel::JobFailed);
 253                         emit processStateFinished(m_jobId, m_outFileName, 0);
 254                         return;
 255                 }
 256         }
 257
 258         //-----------------------------------------------------
 259         // Update audio properties after decode
 260         //-----------------------------------------------------
 261
 262         if(bSuccess && !m_aborted && IS_WAVE(m_audioFile.techInfo()))
 263         {
 264                 if(m_encoder->supportedSamplerates() || m_encoder->supportedBitdepths() || m_encoder->supportedChannelCount() || m_encoder->needsTimingInfo() || !m_filters.isEmpty())
 265                 {
 266                         m_currentStep = AnalyzeStep;
 267                         bSuccess = m_propDetect->detect(sourceFile, &m_audioFile.techInfo(), &m_aborted);
 268
 269                         if(bSuccess)
 270                         {
 271                                 handleMessage("\n-------------------------------\n");
 272
 273                                 //Do we need to take care if Stereo downmix?
 274                                 if(m_encoder->supportedChannelCount())
 275                                 {
 276                                         insertDownmixFilter();
 277                                 }
 278
 279                                 //Do we need to take care of downsampling the input?
 280                                 if(m_encoder->supportedSamplerates() || m_encoder->supportedBitdepths())
 281                                 {
 282                                         insertDownsampleFilter();
 283                                 }
 284                         }
 285                 }
 286         }
 287
 288         //-----------------------------------------------------
 289         // Apply all audio filters
 290         //-----------------------------------------------------
 291
 292         if(bSuccess)
 293         {
 294                 while(!m_filters.isEmpty() && !m_aborted)
 295                 {
 296                         QString tempFile = generateTempFileName();
 297                         AbstractFilter *poFilter = m_filters.takeFirst();
 298                         m_currentStep = FilteringStep;
 299
 300                         connect(poFilter, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 301                         connect(poFilter, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 302
 303                         if(poFilter->apply(sourceFile, tempFile, &m_audioFile.techInfo(), &m_aborted))
 304                         {
 305                                 sourceFile = tempFile;
 306                         }
 307
 308                         handleMessage("\n-------------------------------\n");
 309                         delete poFilter;
 310                 }
 311         }
 312
 313         //-----------------------------------------------------
 314         // Encode audio file
 315         //-----------------------------------------------------
 316
 317         if(bSuccess && !m_aborted)
 318         {
 319                 m_currentStep = EncodingStep;
 320                 bSuccess = m_encoder->encode(sourceFile, m_audioFile.metaInfo(), m_audioFile.techInfo().duration(), m_outFileName, &m_aborted);
 321         }
 322
 323         //Clean-up
 324         if((!bSuccess) || m_aborted)
 325         {
 326                 QFileInfo fileInfo(m_outFileName);
 327                 if(fileInfo.exists() && (fileInfo.size() < 1024))
 328                 {
 329                         QFile::remove(m_outFileName);
 330                 }
 331         }
 332
 333         //Make sure output file exists
 334         if(bSuccess && (!m_aborted))
 335         {
 336                 const QFileInfo fileInfo(m_outFileName);
 337                 bSuccess = fileInfo.exists() && fileInfo.isFile() && (fileInfo.size() >= 1024);
 338         }
 339
 340         //-----------------------------------------------------
 341         // Finalize
 342         //-----------------------------------------------------
 343
 344         if (bSuccess && (!m_aborted) && m_keepDateTime)
 345         {
 346                 updateFileTime(m_audioFile.filePath(), m_outFileName);
 347         }
 348
 349         MUtils::OS::sleep_ms(12);
 350
 351         //Report result
 352         emit processStateChanged(m_jobId, (m_aborted ? tr("Aborted!") : (bSuccess ? tr("Done.") : tr("Failed!"))), ((bSuccess && !m_aborted) ? ProgressModel::JobComplete : ProgressModel::JobFailed));
 353         emit processStateFinished(m_jobId, m_outFileName, (bSuccess ? 1 : 0));
 354
 355         qDebug("Process thread is done.");
 356 }
 357
 358 ////////////////////////////////////////////////////////////
 359 // SLOTS
 360 ////////////////////////////////////////////////////////////
 361
 362 void ProcessThread::handleUpdate(int progress)
 363 {
 364         //qDebug("Progress: %d\n", progress);
 365
 366         switch(m_currentStep)
 367         {
 368         case EncodingStep:
 369                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Encoding"), QString::number(progress)), ProgressModel::JobRunning);
 370                 break;
 371         case AnalyzeStep:
 372                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Analyzing"), QString::number(progress)), ProgressModel::JobRunning);
 373                 break;
 374         case FilteringStep:
 375                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Filtering"), QString::number(progress)), ProgressModel::JobRunning);
 376                 break;
 377         case DecodingStep:
 378                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Decoding"), QString::number(progress)), ProgressModel::JobRunning);
 379                 break;
 380         }
 381 }
 382
 383 void ProcessThread::handleMessage(const QString &line)
 384 {
 385         emit processMessageLogged(m_jobId, line);
 386 }
 387
 388 ////////////////////////////////////////////////////////////
 389 // PRIVAE FUNCTIONS
 390 ////////////////////////////////////////////////////////////
 391
 392 int ProcessThread::generateOutFileName(QString &outFileName)
 393 {
 394         outFileName.clear();
 395
 396         //Make sure the source file exists
 397         const QFileInfo sourceFile(m_audioFile.filePath());
 398         if(!(sourceFile.exists() && sourceFile.isFile()))
 399         {
 400                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be found:"), sourceFile.absoluteFilePath()));
 401                 return 0;
 402         }
 403
 404         //Make sure the source file readable
 405         QFile readTest(sourceFile.canonicalFilePath());
 406         if(!readTest.open(QIODevice::ReadOnly))
 407         {
 408                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be opened for reading:"), QDir::toNativeSeparators(readTest.fileName())));
 409                 return 0;
 410         }
 411         else
 412         {
 413                 readTest.close();
 414         }
 415
 416         const QString baseName = sourceFile.completeBaseName();
 417         QDir targetDir(m_outputDirectory.isEmpty() ? sourceFile.canonicalPath() : m_outputDirectory);
 418
 419         //Prepend relative source file path?
 420         if(m_prependRelativeSourcePath && !m_outputDirectory.isEmpty())
 421         {
 422                 QDir rootDir = sourceFile.dir();
 423                 while(!rootDir.isRoot())
 424                 {
 425                         if(!rootDir.cdUp()) break;
 426                 }
 427                 targetDir.setPath(QString("%1/%2").arg(targetDir.absolutePath(), QFileInfo(rootDir.relativeFilePath(sourceFile.canonicalFilePath())).path()));
 428         }
 429
 430         //Make sure output directory does exist
 431         if(!targetDir.exists())
 432         {
 433                 targetDir.mkpath(".");
 434                 if(!targetDir.exists())
 435                 {
 436                         handleMessage(QString("%1\n%2").arg(tr("The target output directory doesn't exist and could NOT be created:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 437                         return 0;
 438                 }
 439         }
 440
 441         //Make sure that the output dir is writable
 442         QFile writeTest(QString("%1/.%2").arg(targetDir.canonicalPath(), MUtils::rand_str()));
 443         if(!writeTest.open(QIODevice::ReadWrite))
 444         {
 445                 handleMessage(QString("%1\n%2").arg(tr("The target output directory is NOT writable:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 446                 return 0;
 447         }
 448         else
 449         {
 450                 writeTest.remove();
 451         }
 452
 453         //Apply rename pattern
 454         const QString fileName = MUtils::clean_file_name(applyRegularExpression(applyRenamePattern(baseName, m_audioFile.metaInfo())));
 455
 456         //Generate full output path
 457
 458         const QString fileExt = m_renameFileExt.isEmpty() ?  QString::fromUtf8(m_encoder->toEncoderInfo()->extension()) : m_renameFileExt;
 459         outFileName = QString("%1/%2.%3").arg(targetDir.canonicalPath(), fileName, fileExt);
 460
 461         //Skip file, if target file exists (optional!)
 462         if((m_overwriteMode == OverwriteMode_SkipExisting) && QFileInfo(outFileName).exists())
 463         {
 464                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to skip this file:"), QDir::toNativeSeparators(outFileName)));
 465                 handleMessage(tr("If you don't want existing files to be skipped, please change the overwrite mode!"));
 466                 return -1;
 467         }
 468
 469         //Delete file, if target file exists (optional!)
 470         if((m_overwriteMode == OverwriteMode_Overwrite) && QFileInfo(outFileName).exists() && QFileInfo(outFileName).isFile())
 471         {
 472                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to delete existing file:"), QDir::toNativeSeparators(outFileName)));
 473                 if(sourceFile.canonicalFilePath().compare(QFileInfo(outFileName).absoluteFilePath(), Qt::CaseInsensitive) != 0)
 474                 {
 475                         for(int i = 0; i < 16; i++)
 476                         {
 477                                 if(QFile::remove(outFileName))
 478                                 {
 479                                         break;
 480                                 }
 481                                 MUtils::OS::sleep_ms(1);
 482                         }
 483                 }
 484                 if(QFileInfo(outFileName).exists())
 485                 {
 486                         handleMessage(QString("%1\n").arg(tr("Failed to delete existing target file, will save to another file name!")));
 487                 }
 488         }
 489
 490         int n = 1;
 491
 492         //Generate final name
 493         while(QFileInfo(outFileName).exists() && (n < (INT_MAX/2)))
 494         {
 495                 outFileName = QString("%1/%2 (%3).%4").arg(targetDir.canonicalPath(), fileName, QString::number(++n), fileExt);
 496         }
 497
 498         //Create placeholder
 499         QFile placeholder(outFileName);
 500         if(placeholder.open(QIODevice::WriteOnly))
 501         {
 502                 placeholder.close();
 503         }
 504
 505         return 1;
 506 }
 507
 508 QString ProcessThread::applyRenamePattern(const QString &baseName, const AudioFileModel_MetaInfo &metaInfo)
 509 {
 510         QString fileName = m_renamePattern;
 511
 512         fileName.replace("<BaseName>", STRDEF(baseName, tr("Unknown File Name")),         Qt::CaseInsensitive);
 513         fileName.replace("<TrackNo>",  QString().sprintf("%02d", metaInfo.position()),    Qt::CaseInsensitive);
 514         fileName.replace("<Title>",    STRDEF(metaInfo.title(), tr("Unknown Title")) ,    Qt::CaseInsensitive);
 515         fileName.replace("<Artist>",   STRDEF(metaInfo.artist(), tr("Unknown Artist")),   Qt::CaseInsensitive);
 516         fileName.replace("<Album>",    STRDEF(metaInfo.album(), tr("Unknown Album")),     Qt::CaseInsensitive);
 517         fileName.replace("<Year>",     QString().sprintf("%04d", metaInfo.year()),        Qt::CaseInsensitive);
 518         fileName.replace("<Comment>",  STRDEF(metaInfo.comment(), tr("Unknown Comment")), Qt::CaseInsensitive);
 519
 520         return fileName;
 521 }
 522
 523 QString ProcessThread::applyRegularExpression(const QString &fileName)
 524 {
 525         if(m_renameRegExp_Search.isEmpty() || m_renameRegExp_Replace.isEmpty())
 526         {
 527                 return fileName;
 528         }
 529
 530         QRegExp regExp(m_renameRegExp_Search);
 531         if(!regExp.isValid())
 532         {
 533                 qWarning("Invalid regular expression detected -> cannot rename!");
 534                 return fileName;
 535         }
 536
 537         return (QString(fileName).replace(regExp, m_renameRegExp_Replace));
 538 }
 539
 540 QString ProcessThread::generateTempFileName(void)
 541 {
 542         const QString tempFileName = MUtils::make_temp_file(m_tempDirectory, "wav", true);
 543         if(tempFileName.isEmpty())
 544         {
 545                 return QString("%1/~whoops%2.wav").arg(m_tempDirectory, QString::number(MUtils::next_rand32()));
 546         }
 547
 548         m_tempFiles << tempFileName;
 549         return tempFileName;
 550 }
 551
 552 void ProcessThread::insertDownsampleFilter(void)
 553 {
 554         int targetSampleRate = 0;
 555         int targetBitDepth = 0;
 556
 557         /* Adjust sample rate */
 558         if(m_encoder->supportedSamplerates() && m_audioFile.techInfo().audioSamplerate())
 559         {
 560                 bool applyDownsampling = true;
 561
 562                 //Check if downsampling filter is already in the chain
 563                 for(int i = 0; i < m_filters.count(); i++)
 564                 {
 565                         if(dynamic_cast<ResampleFilter*>(m_filters.at(i)))
 566                         {
 567                                 qWarning("Encoder requires downsampling, but user has already set resamling filter!");
 568                                 handleMessage("WARNING: Encoder may need resampling, but already using resample filter. Encoding *may* fail!\n");
 569                                 applyDownsampling = false;
 570                         }
 571                 }
 572
 573                 //Now determine the target sample rate, if required
 574                 if(applyDownsampling)
 575                 {
 576                         const unsigned int *supportedRates = m_encoder->supportedSamplerates();
 577                         const unsigned int inputRate = m_audioFile.techInfo().audioSamplerate();
 578                         unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestRate = UINT_MAX;
 579
 580                         //Find the most suitable supported sampling rate
 581                         for(int i = 0; supportedRates[i]; i++)
 582                         {
 583                                 currentDiff = DIFF(inputRate, supportedRates[i]);
 584                                 if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestRate < supportedRates[i])))
 585                                 {
 586                                         bestRate = supportedRates[i];
 587                                         minimumDiff = currentDiff;
 588                                         if(!(minimumDiff > 0)) break;
 589                                 }
 590                         }
 591
 592                         if(bestRate != inputRate)
 593                         {
 594                                 targetSampleRate = (bestRate != UINT_MAX) ? bestRate : supportedRates[0];
 595                         }
 596                 }
 597         }
 598
 599         /* Adjust bit depth (word size) */
 600         if(m_encoder->supportedBitdepths() && m_audioFile.techInfo().audioBitdepth())
 601         {
 602                 const unsigned int inputBPS = m_audioFile.techInfo().audioBitdepth();
 603                 const unsigned int *supportedBPS = m_encoder->supportedBitdepths();
 604
 605                 bool bAdjustBitdepth = true;
 606
 607                 //Is the input bit depth supported exactly? (including IEEE Float)
 608                 for(int i = 0; supportedBPS[i]; i++)
 609                 {
 610                         if(supportedBPS[i] == inputBPS) bAdjustBitdepth = false;
 611                 }
 612
 613                 if(bAdjustBitdepth)
 614                 {
 615                         unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestBPS = UINT_MAX;
 616                         const unsigned int originalBPS = (inputBPS == AudioFileModel::BITDEPTH_IEEE_FLOAT32) ? 32 : inputBPS;
 617
 618                         //Find the most suitable supported bit depth
 619                         for(int i = 0; supportedBPS[i]; i++)
 620                         {
 621                                 if(supportedBPS[i] == AudioFileModel::BITDEPTH_IEEE_FLOAT32) continue;
 622
 623                                 currentDiff = DIFF(originalBPS, supportedBPS[i]);
 624                                 if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestBPS < supportedBPS[i])))
 625                                 {
 626                                         bestBPS = supportedBPS[i];
 627                                         minimumDiff = currentDiff;
 628                                         if(!(minimumDiff > 0)) break;
 629                                 }
 630                         }
 631
 632                         if(bestBPS != originalBPS)
 633                         {
 634                                 targetBitDepth = (bestBPS != UINT_MAX) ? bestBPS : supportedBPS[0];
 635                         }
 636                 }
 637         }
 638
 639         /* Insert the filter */
 640         if(targetSampleRate || targetBitDepth)
 641         {
 642                 m_filters.append(new ResampleFilter(targetSampleRate, targetBitDepth));
 643         }
 644 }
 645
 646 void ProcessThread::insertDownmixFilter(void)
 647 {
 648         bool applyDownmixing = true;
 649
 650         //Check if downmixing filter is already in the chain
 651         for(int i = 0; i < m_filters.count(); i++)
 652         {
 653                 if(dynamic_cast<DownmixFilter*>(m_filters.at(i)))
 654                 {
 655                         qWarning("Encoder requires Stereo downmix, but user has already forced downmix!");
 656                         handleMessage("WARNING: Encoder may need downmixning, but already using downmixning filter. Encoding *may* fail!\n");
 657                         applyDownmixing = false;
 658                 }
 659         }
 660
 661         //Now add the downmixing filter, if needed
 662         if(applyDownmixing)
 663         {
 664                 bool requiresDownmix = true;
 665                 const unsigned int *supportedChannels = m_encoder->supportedChannelCount();
 666                 unsigned int channels = m_audioFile.techInfo().audioChannels();
 667
 668                 for(int i = 0; supportedChannels[i]; i++)
 669                 {
 670                         if(supportedChannels[i] == channels)
 671                         {
 672                                 requiresDownmix = false;
 673                                 break;
 674                         }
 675                 }
 676
 677                 if(requiresDownmix)
 678                 {
 679                         m_filters.append(new DownmixFilter());
 680                 }
 681         }
 682 }
 683
 684 bool ProcessThread::updateFileTime(const QString &originalFile, const QString &modifiedFile)
 685 {
 686         bool success = false;
 687
 688         QFileInfo originalFileInfo(originalFile);
 689         const QDateTime timeCreated = originalFileInfo.created(), timeLastMod = originalFileInfo.lastModified();
 690         if (timeCreated.isValid() && timeLastMod.isValid())
 691         {
 692                 if (!MUtils::OS::set_file_time(modifiedFile, timeCreated, timeLastMod))
 693                 {
 694                         qWarning("Failed to update creation/modified time of output file: \"%s\"", MUTILS_UTF8(modifiedFile));
 695                 }
 696         }
 697         else
 698         {
 699                 qWarning("Failed to read creation/modified time of source file: \"%s\"", MUTILS_UTF8(originalFile));
 700         }
 701
 702         return success;
 703 }
 704
 705 ////////////////////////////////////////////////////////////
 706 // PUBLIC FUNCTIONS
 707 ////////////////////////////////////////////////////////////
 708
 709 void ProcessThread::addFilter(AbstractFilter *filter)
 710 {
 711         m_filters.append(filter);
 712 }
 713
 714 void ProcessThread::setRenamePattern(const QString &pattern)
 715 {
 716         const QString newPattern = pattern.simplified();
 717         if(!newPattern.isEmpty()) m_renamePattern = newPattern;
 718 }
 719
 720 void ProcessThread::setRenameRegExp(const QString &search, const QString &replace)
 721 {
 722         const QString newSearch = search.trimmed(), newReplace = replace.simplified();
 723         if((!newSearch.isEmpty()) && (!newReplace.isEmpty()))
 724         {
 725                 m_renameRegExp_Search  = newSearch;
 726                 m_renameRegExp_Replace = newReplace;
 727         }
 728 }
 729
 730 void ProcessThread::setRenameFileExt(const QString &fileExtension)
 731 {
 732         m_renameFileExt = MUtils::clean_file_name(fileExtension).simplified();
 733         while(m_renameFileExt.startsWith('.'))
 734         {
 735                 m_renameFileExt = m_renameFileExt.mid(1).trimmed();
 736         }
 737 }
 738
 739 void ProcessThread::setOverwriteMode(const bool &bSkipExistingFile, const bool &bReplacesExisting)
 740 {
 741         if(bSkipExistingFile && bReplacesExisting)
 742         {
 743                 qWarning("Inconsistent overwrite flags -> reverting to default!");
 744                 m_overwriteMode = OverwriteMode_KeepBoth;
 745         }
 746         else
 747         {
 748                 m_overwriteMode = OverwriteMode_KeepBoth;
 749                 if(bSkipExistingFile) m_overwriteMode = OverwriteMode_SkipExisting;
 750                 if(bReplacesExisting) m_overwriteMode = OverwriteMode_Overwrite;
 751         }
 752 }
 753
 754 void ProcessThread::setKeepDateTime(const bool &keepDateTime)
 755 {
 756         m_keepDateTime = keepDateTime;
 757 }
 758
 759 ////////////////////////////////////////////////////////////
 760 // EVENTS
 761 ////////////////////////////////////////////////////////////
 762
 763 /*NONE*/