src/Thread_Process.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2018 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_propDetect(new WaveProperties())
  78 {
  79         connect(m_encoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
  80         connect(m_encoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
  81
  82         connect(m_propDetect, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
  83         connect(m_propDetect, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
  84
  85         m_currentStep = UnknownStep;
  86 }
  87
  88 ProcessThread::~ProcessThread(void)
  89 {
  90         while(!m_tempFiles.isEmpty())
  91         {
  92                 MUtils::remove_file(m_tempFiles.takeFirst());
  93         }
  94
  95         while(!m_filters.isEmpty())
  96         {
  97                 delete m_filters.takeFirst();
  98         }
  99
 100         MUTILS_DELETE(m_encoder);
 101         MUTILS_DELETE(m_propDetect);
 102
 103         emit processFinished();
 104 }
 105
 106 ////////////////////////////////////////////////////////////
 107 // Init Function
 108 ////////////////////////////////////////////////////////////
 109
 110 bool ProcessThread::init(void)
 111 {
 112         if(m_initialized.testAndSetOrdered((-1), 0))
 113         {
 114                 //Initialize job status
 115                 qDebug("Process thread %s has started.", m_jobId.toString().toLatin1().constData());
 116                 emit processStateInitialized(m_jobId, QFileInfo(m_audioFile.filePath()).fileName(), tr("Starting..."), ProgressModel::JobRunning);
 117
 118                 //Initialize log
 119                 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))));
 120                 handleMessage("\n-------------------------------\n");
 121
 122                 return true;
 123         }
 124
 125         qWarning("[ProcessThread::init] Job %s already initialialized, skipping!", m_jobId.toString().toLatin1().constData());
 126         return false;
 127 }
 128
 129 bool ProcessThread::start(QThreadPool *const pool)
 130 {
 131         //Make sure object was initialized correctly
 132         if (m_initialized < 0)
 133         {
 134                 MUTILS_THROW("Object not initialized yet!");
 135         }
 136
 137         if (m_initialized.testAndSetOrdered(0, 1))
 138         {
 139                 m_outFileName.clear();
 140                 m_aborted.fetchAndStoreOrdered(0);
 141                 bool bSuccess = false;
 142
 143                 //Generate output file name
 144                 switch(generateOutFileName(m_outFileName))
 145                 {
 146                 case 1:
 147                         //File name generated successfully :-)
 148                         bSuccess = true;
 149                         pool->start(this);
 150                         break;
 151                 case -1:
 152                         //File name already exists -> skipping!
 153                         emit processStateChanged(m_jobId, tr("Skipped."), ProgressModel::JobSkipped);
 154                         emit processStateFinished(m_jobId, m_outFileName, -1);
 155                         break;
 156                 default:
 157                         //File name could not be generated
 158                         emit processStateChanged(m_jobId, tr("Not found!"), ProgressModel::JobFailed);
 159                         emit processStateFinished(m_jobId, m_outFileName, 0);
 160                         break;
 161                 }
 162
 163                 return bSuccess;
 164         }
 165
 166         qWarning("[ProcessThread::start] Job %s already started, skipping!", m_jobId.toString().toLatin1().constData());
 167         return false;
 168 }
 169
 170 ////////////////////////////////////////////////////////////
 171 // Thread Entry Point
 172 ////////////////////////////////////////////////////////////
 173
 174 void ProcessThread::run()
 175 {
 176         try
 177         {
 178                 processFile();
 179         }
 180         catch(const std::exception &error)
 181         {
 182                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
 183                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 184         }
 185         catch(...)
 186         {
 187                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
 188                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 189         }
 190 }
 191
 192 void ProcessThread::processFile()
 193 {
 194         m_aborted = false;
 195         bool bSuccess = true;
 196
 197         //Make sure object was initialized correctly
 198         if(m_initialized < 1)
 199         {
 200                 MUTILS_THROW("Object not initialized yet!");
 201         }
 202
 203         QString sourceFile = m_audioFile.filePath();
 204
 205         //-----------------------------------------------------
 206         // Decode source file
 207         //-----------------------------------------------------
 208
 209         const AudioFileModel_TechInfo &formatInfo = m_audioFile.techInfo();
 210         if(!m_filters.isEmpty() || !m_encoder->isFormatSupported(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion()))
 211         {
 212                 m_currentStep = DecodingStep;
 213                 AbstractDecoder *decoder = DecoderRegistry::lookup(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion());
 214
 215                 if(decoder)
 216                 {
 217                         QString tempFile = generateTempFileName();
 218
 219                         connect(decoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 220                         connect(decoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 221
 222                         bSuccess = decoder->decode(sourceFile, tempFile, m_aborted);
 223                         MUTILS_DELETE(decoder);
 224
 225                         if(bSuccess)
 226                         {
 227                                 sourceFile = tempFile;
 228                                 m_audioFile.techInfo().setContainerType(QString::fromLatin1("Wave"));
 229                                 m_audioFile.techInfo().setAudioType(QString::fromLatin1("PCM"));
 230
 231                                 if(QFileInfo(sourceFile).size() >= 4294967296i64)
 232                                 {
 233                                         handleMessage(tr("WARNING: Decoded file size exceeds 4 GB, problems might occur!\n"));
 234                                 }
 235
 236                                 handleMessage("\n-------------------------------\n");
 237                         }
 238                 }
 239                 else
 240                 {
 241                         if(QFileInfo(m_outFileName).exists() && (QFileInfo(m_outFileName).size() < 512)) QFile::remove(m_outFileName);
 242                         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()));
 243                         emit processStateChanged(m_jobId, tr("Unsupported!"), ProgressModel::JobFailed);
 244                         emit processStateFinished(m_jobId, m_outFileName, 0);
 245                         return;
 246                 }
 247         }
 248
 249         //-----------------------------------------------------
 250         // Update audio properties after decode
 251         //-----------------------------------------------------
 252
 253         if(bSuccess && (!m_aborted) && IS_WAVE(m_audioFile.techInfo()))
 254         {
 255                 if(m_encoder->supportedSamplerates() || m_encoder->supportedBitdepths() || m_encoder->supportedChannelCount() || m_encoder->needsTimingInfo() || !m_filters.isEmpty())
 256                 {
 257                         m_currentStep = AnalyzeStep;
 258                         bSuccess = m_propDetect->detect(sourceFile, &m_audioFile.techInfo(), m_aborted);
 259
 260                         if(bSuccess)
 261                         {
 262                                 handleMessage("\n-------------------------------\n");
 263
 264                                 //Do we need to take care if Stereo downmix?
 265                                 const unsigned int *const supportedChannelCount = m_encoder->supportedChannelCount();
 266                                 if(supportedChannelCount && supportedChannelCount[0])
 267                                 {
 268                                         insertDownmixFilter(supportedChannelCount);
 269                                 }
 270
 271                                 //Do we need to take care of downsampling the input?
 272                                 const unsigned int *const supportedSamplerates = m_encoder->supportedSamplerates();
 273                                 const unsigned int *const supportedBitdepths = m_encoder->supportedBitdepths();
 274                                 if((supportedSamplerates && supportedSamplerates[0]) || (supportedBitdepths && supportedBitdepths[0]))
 275                                 {
 276                                         insertDownsampleFilter(supportedSamplerates, supportedBitdepths);
 277                                 }
 278                         }
 279                 }
 280         }
 281
 282         //-----------------------------------------------------
 283         // Apply all audio filters
 284         //-----------------------------------------------------
 285
 286         while(bSuccess && (!m_filters.isEmpty()) && (!m_aborted))
 287         {
 288                 QString tempFile = generateTempFileName();
 289                 AbstractFilter *poFilter = m_filters.takeFirst();
 290                 m_currentStep = FilteringStep;
 291
 292                 connect(poFilter, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 293                 connect(poFilter, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 294
 295                 const AbstractFilter::FilterResult filterResult = poFilter->apply(sourceFile, tempFile, &m_audioFile.techInfo(), m_aborted);
 296                 switch (filterResult)
 297                 {
 298                 case AbstractFilter::FILTER_SUCCESS:
 299                         sourceFile = tempFile;
 300                         break;
 301                 case AbstractFilter::FILTER_FAILURE:
 302                         bSuccess = false;
 303                         break;
 304                 }
 305
 306                 handleMessage("\n-------------------------------\n");
 307                 delete poFilter;
 308         }
 309
 310         //-----------------------------------------------------
 311         // Encode audio file
 312         //-----------------------------------------------------
 313
 314         if(bSuccess && (!m_aborted))
 315         {
 316                 m_currentStep = EncodingStep;
 317                 bSuccess = m_encoder->encode(sourceFile, m_audioFile.metaInfo(), m_audioFile.techInfo().duration(), m_audioFile.techInfo().audioChannels(), m_outFileName, m_aborted);
 318         }
 319
 320         //Clean-up
 321         if((!bSuccess) || MUTILS_BOOLIFY(m_aborted))
 322         {
 323                 QFileInfo fileInfo(m_outFileName);
 324                 if(fileInfo.exists() && (fileInfo.size() < 1024))
 325                 {
 326                         QFile::remove(m_outFileName);
 327                 }
 328         }
 329
 330         //Make sure output file exists
 331         if(bSuccess && (!m_aborted))
 332         {
 333                 const QFileInfo fileInfo(m_outFileName);
 334                 bSuccess = fileInfo.exists() && fileInfo.isFile() && (fileInfo.size() >= 1024);
 335         }
 336
 337         //-----------------------------------------------------
 338         // Finalize
 339         //-----------------------------------------------------
 340
 341         if (bSuccess && (!m_aborted) && m_keepDateTime)
 342         {
 343                 updateFileTime(m_audioFile.filePath(), m_outFileName);
 344         }
 345
 346         MUtils::OS::sleep_ms(12);
 347
 348         //Report result
 349         emit processStateChanged(m_jobId, (MUTILS_BOOLIFY(m_aborted) ? tr("Aborted!") : (bSuccess ? tr("Done.") : tr("Failed!"))), ((bSuccess && (!m_aborted)) ? ProgressModel::JobComplete : ProgressModel::JobFailed));
 350         emit processStateFinished(m_jobId, m_outFileName, (bSuccess ? 1 : 0));
 351
 352         qDebug("Process thread is done.");
 353 }
 354
 355 ////////////////////////////////////////////////////////////
 356 // SLOTS
 357 ////////////////////////////////////////////////////////////
 358
 359 void ProcessThread::handleUpdate(int progress)
 360 {
 361         //qDebug("Progress: %d\n", progress);
 362
 363         switch(m_currentStep)
 364         {
 365         case EncodingStep:
 366                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Encoding"), QString::number(progress)), ProgressModel::JobRunning);
 367                 break;
 368         case AnalyzeStep:
 369                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Analyzing"), QString::number(progress)), ProgressModel::JobRunning);
 370                 break;
 371         case FilteringStep:
 372                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Filtering"), QString::number(progress)), ProgressModel::JobRunning);
 373                 break;
 374         case DecodingStep:
 375                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Decoding"), QString::number(progress)), ProgressModel::JobRunning);
 376                 break;
 377         }
 378 }
 379
 380 void ProcessThread::handleMessage(const QString &line)
 381 {
 382         emit processMessageLogged(m_jobId, line);
 383 }
 384
 385 ////////////////////////////////////////////////////////////
 386 // PRIVAE FUNCTIONS
 387 ////////////////////////////////////////////////////////////
 388
 389 int ProcessThread::generateOutFileName(QString &outFileName)
 390 {
 391         outFileName.clear();
 392
 393         /* -------- Check source file -------- */
 394
 395         //Make sure the source file exists
 396         const QFileInfo sourceFile(m_audioFile.filePath());
 397         if(!(sourceFile.exists() && sourceFile.isFile()))
 398         {
 399                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be found:"), sourceFile.absoluteFilePath()));
 400                 return 0;
 401         }
 402
 403         //Make sure the source file readable
 404         QFile readTest(sourceFile.canonicalFilePath());
 405         if(!readTest.open(QIODevice::ReadOnly))
 406         {
 407                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be opened for reading:"), QDir::toNativeSeparators(readTest.fileName())));
 408                 return 0;
 409         }
 410         else
 411         {
 412                 readTest.close();
 413         }
 414
 415         /* -------- Determine target directory -------- */
 416
 417         QDir targetDir(MUtils::clean_file_path(m_outputDirectory.isEmpty() ? sourceFile.canonicalPath() : m_outputDirectory, false));
 418
 419         //Prepend relative source file path?
 420         if(m_prependRelativeSourcePath && !m_outputDirectory.isEmpty())
 421         {
 422                 QDir sourceDir = sourceFile.dir();
 423                 if (!sourceDir.isRoot())
 424                 {
 425                         quint32 depth = 0;
 426                         while ((!sourceDir.isRoot()) && (++depth <= 0xFF))
 427                         {
 428                                 if (!sourceDir.cdUp()) break;
 429                         }
 430                         const QString postfix = QFileInfo(sourceDir.relativeFilePath(sourceFile.canonicalFilePath())).path();
 431                         targetDir.setPath(MUtils::clean_file_path(QString("%1/%2").arg(targetDir.absolutePath(), postfix), false));
 432                 }
 433         }
 434
 435         //Make sure output directory does exist
 436         if(!targetDir.exists())
 437         {
 438                 targetDir.mkpath(".");
 439                 if(!targetDir.exists())
 440                 {
 441                         handleMessage(QString("%1\n%2").arg(tr("The target output directory doesn't exist and could NOT be created:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 442                         return 0;
 443                 }
 444         }
 445
 446         //Make sure that the output dir is writable
 447         QFile writeTest(MUtils::make_temp_file(targetDir, "~rw"));
 448         if(!writeTest.open(QIODevice::ReadWrite))
 449         {
 450                 handleMessage(QString("%1\n%2").arg(tr("The target output directory is NOT writable:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 451                 return 0;
 452         }
 453         else
 454         {
 455                 writeTest.remove(); /*clean-up*/
 456         }
 457
 458         /* -------- Generate initial file name and check -------- */
 459
 460         //File extension
 461         const QString fileExt = m_renameFileExt.isEmpty() ? QString::fromUtf8(m_encoder->toEncoderInfo()->extension()) : m_renameFileExt;
 462
 463         //Generate file name
 464         const QString fileName = MUtils::clean_file_name(QString("%1.%2").arg(applyRegularExpression(applyRenamePattern(sourceFile.completeBaseName(), m_audioFile.metaInfo())), fileExt), true);
 465
 466         //Generate full output path
 467         outFileName = targetDir.absoluteFilePath(fileName);
 468
 469         //Skip file, if target file exists (optional!)
 470         if((m_overwriteMode == OverwriteMode_SkipExisting) && QFileInfo(outFileName).exists())
 471         {
 472                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to skip this file:"), QDir::toNativeSeparators(outFileName)));
 473                 handleMessage(tr("If you don't want existing files to be skipped, please change the overwrite mode!"));
 474                 return -1;
 475         }
 476
 477         //Delete file, if target file exists (optional!)
 478         const QFileInfo origFileName(outFileName);
 479         if((m_overwriteMode == OverwriteMode_Overwrite) && origFileName.exists() && origFileName.isFile())
 480         {
 481                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to delete existing file:"), QDir::toNativeSeparators(outFileName)));
 482                 bool removed = false;
 483                 if(sourceFile.canonicalFilePath().compare(origFileName.absoluteFilePath(), Qt::CaseInsensitive) != 0)
 484                 {
 485                         removed = MUtils::remove_file(outFileName);
 486                 }
 487                 if(!removed)
 488                 {
 489                         handleMessage(QString("%1\n").arg(tr("Failed to delete existing target file, will save to another file name!")));
 490                 }
 491         }
 492
 493         /* -------- Generate final non-existing file name -------- */
 494
 495         //Generate final name
 496         outFileName = MUtils::make_unique_file(origFileName.absoluteDir(), origFileName.completeBaseName(), origFileName.suffix(), true, true);
 497         if(!outFileName.isEmpty())
 498         {
 499                 return 1;
 500         }
 501
 502         //Failed to generate
 503         handleMessage(QString("%1\n").arg(tr("Failed to generate non-existing target file name!")));
 504         return 0;
 505 }
 506
 507 QString ProcessThread::applyRenamePattern(const QString &baseName, const AudioFileModel_MetaInfo &metaInfo)
 508 {
 509         QString fileName = m_renamePattern;
 510
 511         fileName.replace("<BaseName>", STRDEF(baseName, tr("Unknown File Name")),         Qt::CaseInsensitive);
 512         fileName.replace("<TrackNo>",  QString().sprintf("%02d", metaInfo.position()),    Qt::CaseInsensitive);
 513         fileName.replace("<Title>",    STRDEF(metaInfo.title(), tr("Unknown Title")) ,    Qt::CaseInsensitive);
 514         fileName.replace("<Artist>",   STRDEF(metaInfo.artist(), tr("Unknown Artist")),   Qt::CaseInsensitive);
 515         fileName.replace("<Album>",    STRDEF(metaInfo.album(), tr("Unknown Album")),     Qt::CaseInsensitive);
 516         fileName.replace("<Year>",     QString().sprintf("%04d", metaInfo.year()),        Qt::CaseInsensitive);
 517         fileName.replace("<Comment>",  STRDEF(metaInfo.comment(), tr("Unknown Comment")), Qt::CaseInsensitive);
 518
 519         return fileName.trimmed().isEmpty() ? baseName : fileName;
 520 }
 521
 522 QString ProcessThread::applyRegularExpression(const QString &baseName)
 523 {
 524         if(m_renameRegExp_Search.isEmpty() || m_renameRegExp_Replace.isEmpty())
 525         {
 526                 return baseName;
 527         }
 528
 529         QRegExp regExp(m_renameRegExp_Search);
 530         if(!regExp.isValid())
 531         {
 532                 qWarning("Invalid regular expression detected -> cannot rename!");
 533                 return baseName;
 534         }
 535
 536         const QString fileName = QString(baseName).replace(regExp, m_renameRegExp_Replace);
 537         return fileName.trimmed().isEmpty() ? baseName : fileName;
 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_rand_u32()));
 546         }
 547
 548         m_tempFiles << tempFileName;
 549         return tempFileName;
 550 }
 551
 552 bool ProcessThread::insertDownsampleFilter(const unsigned int *const supportedSamplerates, const unsigned int *const supportedBitdepths)
 553 {
 554         int targetSampleRate = 0, targetBitDepth = 0;
 555
 556         /* Adjust sample rate */
 557         if(supportedSamplerates && m_audioFile.techInfo().audioSamplerate())
 558         {
 559                 const unsigned int inputRate = m_audioFile.techInfo().audioSamplerate();
 560                 unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestRate = UINT_MAX;
 561
 562                 //Find the most suitable supported sampling rate
 563                 for(int i = 0; supportedSamplerates[i]; i++)
 564                 {
 565                         currentDiff = DIFF(inputRate, supportedSamplerates[i]);
 566                         if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestRate < supportedSamplerates[i])))
 567                         {
 568                                 bestRate = supportedSamplerates[i];
 569                                 minimumDiff = currentDiff;
 570                                 if(!(minimumDiff > 0)) break;
 571                         }
 572                 }
 573
 574                 if(bestRate != inputRate)
 575                 {
 576                         targetSampleRate = (bestRate != UINT_MAX) ? bestRate : supportedSamplerates[0];
 577                 }
 578         }
 579
 580         /* Adjust bit depth (word size) */
 581         if(supportedBitdepths && m_audioFile.techInfo().audioBitdepth())
 582         {
 583                 const unsigned int inputBPS = m_audioFile.techInfo().audioBitdepth();
 584                 bool bAdjustBitdepth = true;
 585
 586                 //Is the input bit depth supported exactly? (including IEEE Float)
 587                 for(int i = 0; supportedBitdepths[i]; i++)
 588                 {
 589                         if(supportedBitdepths[i] == inputBPS) bAdjustBitdepth = false;
 590                 }
 591
 592                 if(bAdjustBitdepth)
 593                 {
 594                         unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestBPS = UINT_MAX;
 595                         const unsigned int originalBPS = (inputBPS == AudioFileModel::BITDEPTH_IEEE_FLOAT32) ? 32 : inputBPS;
 596
 597                         //Find the most suitable supported bit depth
 598                         for(int i = 0; supportedBitdepths[i]; i++)
 599                         {
 600                                 if(supportedBitdepths[i] == AudioFileModel::BITDEPTH_IEEE_FLOAT32) continue;
 601
 602                                 currentDiff = DIFF(originalBPS, supportedBitdepths[i]);
 603                                 if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestBPS < supportedBitdepths[i])))
 604                                 {
 605                                         bestBPS = supportedBitdepths[i];
 606                                         minimumDiff = currentDiff;
 607                                         if(!(minimumDiff > 0)) break;
 608                                 }
 609                         }
 610
 611                         if(bestBPS != originalBPS)
 612                         {
 613                                 targetBitDepth = (bestBPS != UINT_MAX) ? bestBPS : supportedBitdepths[0];
 614                         }
 615                 }
 616         }
 617
 618         //Check if downsampling filter is already in the chain
 619         if (targetSampleRate || targetBitDepth)
 620         {
 621                 for (int i = 0; i < m_filters.count(); i++)
 622                 {
 623                         if (dynamic_cast<ResampleFilter*>(m_filters.at(i)))
 624                         {
 625                                 qWarning("Encoder requires downsampling, but user has already set resamling filter!");
 626                                 handleMessage("WARNING: Encoder may need resampling, but already using resample filter. Encoding *may* fail!\n");
 627                                 targetSampleRate = targetBitDepth = 0;
 628                         }
 629                 }
 630         }
 631
 632         /* Insert the filter */
 633         if(targetSampleRate || targetBitDepth)
 634         {
 635                 m_filters.append(new ResampleFilter(targetSampleRate, targetBitDepth));
 636                 return true;
 637         }
 638
 639         return false; /*did not insert the resample filter */
 640 }
 641
 642 bool ProcessThread::insertDownmixFilter(const unsigned int *const supportedChannels)
 643 {
 644         //Determine number of channels in source
 645         const unsigned int channels = m_audioFile.techInfo().audioChannels();
 646         bool requiresDownmix = (channels > 0);
 647
 648         //Check whether encoder requires downmixing
 649         if(requiresDownmix)
 650         {
 651                 for (int i = 0; supportedChannels[i]; i++)
 652                 {
 653                         if (supportedChannels[i] == channels)
 654                         {
 655                                 requiresDownmix = false;
 656                                 break;
 657                         }
 658                 }
 659         }
 660
 661         //Check if downmixing filter is already in the chain
 662         if (requiresDownmix)
 663         {
 664                 for (int i = 0; i < m_filters.count(); i++)
 665                 {
 666                         if (dynamic_cast<DownmixFilter*>(m_filters.at(i)))
 667                         {
 668                                 qWarning("Encoder requires Stereo downmix, but user has already forced downmix!");
 669                                 handleMessage("WARNING: Encoder may need downmixning, but already using downmixning filter. Encoding *may* fail!\n");
 670                                 requiresDownmix = false;
 671                                 break;
 672                         }
 673                 }
 674         }
 675
 676         //Now add the downmixing filter, if needed
 677         if(requiresDownmix)
 678         {
 679                 m_filters.append(new DownmixFilter());
 680                 return true;
 681         }
 682
 683         return false; /*did not insert the downmix filter*/
 684 }
 685
 686 bool ProcessThread::updateFileTime(const QString &originalFile, const QString &modifiedFile)
 687 {
 688         bool success = false;
 689
 690         QFileInfo originalFileInfo(originalFile);
 691         const QDateTime timeCreated = originalFileInfo.created(), timeLastMod = originalFileInfo.lastModified();
 692         if (timeCreated.isValid() && timeLastMod.isValid())
 693         {
 694                 if (!MUtils::OS::set_file_time(modifiedFile, timeCreated, timeLastMod))
 695                 {
 696                         qWarning("Failed to update creation/modified time of output file: \"%s\"", MUTILS_UTF8(modifiedFile));
 697                 }
 698         }
 699         else
 700         {
 701                 qWarning("Failed to read creation/modified time of source file: \"%s\"", MUTILS_UTF8(originalFile));
 702         }
 703
 704         return success;
 705 }
 706
 707 ////////////////////////////////////////////////////////////
 708 // PUBLIC FUNCTIONS
 709 ////////////////////////////////////////////////////////////
 710
 711 void ProcessThread::addFilter(AbstractFilter *filter)
 712 {
 713         m_filters.append(filter);
 714 }
 715
 716 void ProcessThread::setRenamePattern(const QString &pattern)
 717 {
 718         const QString newPattern = pattern.simplified();
 719         if(!newPattern.isEmpty()) m_renamePattern = newPattern;
 720 }
 721
 722 void ProcessThread::setRenameRegExp(const QString &search, const QString &replace)
 723 {
 724         const QString newSearch = search.trimmed(), newReplace = replace.simplified();
 725         if((!newSearch.isEmpty()) && (!newReplace.isEmpty()))
 726         {
 727                 m_renameRegExp_Search  = newSearch;
 728                 m_renameRegExp_Replace = newReplace;
 729         }
 730 }
 731
 732 void ProcessThread::setRenameFileExt(const QString &fileExtension)
 733 {
 734         m_renameFileExt = MUtils::clean_file_name(fileExtension, false).simplified();
 735         while(m_renameFileExt.startsWith('.'))
 736         {
 737                 m_renameFileExt = m_renameFileExt.mid(1).trimmed();
 738         }
 739 }
 740
 741 void ProcessThread::setOverwriteMode(const bool &bSkipExistingFile, const bool &bReplacesExisting)
 742 {
 743         if(bSkipExistingFile && bReplacesExisting)
 744         {
 745                 qWarning("Inconsistent overwrite flags -> reverting to default!");
 746                 m_overwriteMode = OverwriteMode_KeepBoth;
 747         }
 748         else
 749         {
 750                 m_overwriteMode = OverwriteMode_KeepBoth;
 751                 if(bSkipExistingFile) m_overwriteMode = OverwriteMode_SkipExisting;
 752                 if(bReplacesExisting) m_overwriteMode = OverwriteMode_Overwrite;
 753         }
 754 }
 755
 756 void ProcessThread::setKeepDateTime(const bool &keepDateTime)
 757 {
 758         m_keepDateTime = keepDateTime;
 759 }
 760
 761 ////////////////////////////////////////////////////////////
 762 // EVENTS
 763 ////////////////////////////////////////////////////////////
 764
 765 /*NONE*/