src/Thread_Process.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2017 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                 if(!bSuccess)
 164                 {
 165                         emit processFinished();
 166                 }
 167
 168                 return bSuccess;
 169         }
 170
 171         qWarning("[ProcessThread::start] Job %s already started, skipping!", m_jobId.toString().toLatin1().constData());
 172         return false;
 173 }
 174
 175 ////////////////////////////////////////////////////////////
 176 // Thread Entry Point
 177 ////////////////////////////////////////////////////////////
 178
 179 void ProcessThread::run()
 180 {
 181         try
 182         {
 183                 processFile();
 184         }
 185         catch(const std::exception &error)
 186         {
 187                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
 188                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 189         }
 190         catch(...)
 191         {
 192                 MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
 193                 MUtils::OS::fatal_exit(L"Unhandeled C++ exception error, application will exit!");
 194         }
 195 }
 196
 197 void ProcessThread::processFile()
 198 {
 199         m_aborted = false;
 200         bool bSuccess = true;
 201
 202         //Make sure object was initialized correctly
 203         if(m_initialized < 1)
 204         {
 205                 MUTILS_THROW("Object not initialized yet!");
 206         }
 207
 208         QString sourceFile = m_audioFile.filePath();
 209
 210         //-----------------------------------------------------
 211         // Decode source file
 212         //-----------------------------------------------------
 213
 214         const AudioFileModel_TechInfo &formatInfo = m_audioFile.techInfo();
 215         if(!m_filters.isEmpty() || !m_encoder->isFormatSupported(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion()))
 216         {
 217                 m_currentStep = DecodingStep;
 218                 AbstractDecoder *decoder = DecoderRegistry::lookup(formatInfo.containerType(), formatInfo.containerProfile(), formatInfo.audioType(), formatInfo.audioProfile(), formatInfo.audioVersion());
 219
 220                 if(decoder)
 221                 {
 222                         QString tempFile = generateTempFileName();
 223
 224                         connect(decoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 225                         connect(decoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 226
 227                         bSuccess = decoder->decode(sourceFile, tempFile, m_aborted);
 228                         MUTILS_DELETE(decoder);
 229
 230                         if(bSuccess)
 231                         {
 232                                 sourceFile = tempFile;
 233                                 m_audioFile.techInfo().setContainerType(QString::fromLatin1("Wave"));
 234                                 m_audioFile.techInfo().setAudioType(QString::fromLatin1("PCM"));
 235
 236                                 if(QFileInfo(sourceFile).size() >= 4294967296i64)
 237                                 {
 238                                         handleMessage(tr("WARNING: Decoded file size exceeds 4 GB, problems might occur!\n"));
 239                                 }
 240
 241                                 handleMessage("\n-------------------------------\n");
 242                         }
 243                 }
 244                 else
 245                 {
 246                         if(QFileInfo(m_outFileName).exists() && (QFileInfo(m_outFileName).size() < 512)) QFile::remove(m_outFileName);
 247                         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()));
 248                         emit processStateChanged(m_jobId, tr("Unsupported!"), ProgressModel::JobFailed);
 249                         emit processStateFinished(m_jobId, m_outFileName, 0);
 250                         return;
 251                 }
 252         }
 253
 254         //-----------------------------------------------------
 255         // Update audio properties after decode
 256         //-----------------------------------------------------
 257
 258         if(bSuccess && (!m_aborted) && IS_WAVE(m_audioFile.techInfo()))
 259         {
 260                 if(m_encoder->supportedSamplerates() || m_encoder->supportedBitdepths() || m_encoder->supportedChannelCount() || m_encoder->needsTimingInfo() || !m_filters.isEmpty())
 261                 {
 262                         m_currentStep = AnalyzeStep;
 263                         bSuccess = m_propDetect->detect(sourceFile, &m_audioFile.techInfo(), m_aborted);
 264
 265                         if(bSuccess)
 266                         {
 267                                 handleMessage("\n-------------------------------\n");
 268
 269                                 //Do we need to take care if Stereo downmix?
 270                                 const unsigned int *const supportedChannelCount = m_encoder->supportedChannelCount();
 271                                 if(supportedChannelCount && supportedChannelCount[0])
 272                                 {
 273                                         insertDownmixFilter(supportedChannelCount);
 274                                 }
 275
 276                                 //Do we need to take care of downsampling the input?
 277                                 const unsigned int *const supportedSamplerates = m_encoder->supportedSamplerates();
 278                                 const unsigned int *const supportedBitdepths = m_encoder->supportedBitdepths();
 279                                 if((supportedSamplerates && supportedSamplerates[0]) || (supportedBitdepths && supportedBitdepths[0]))
 280                                 {
 281                                         insertDownsampleFilter(supportedSamplerates, supportedBitdepths);
 282                                 }
 283                         }
 284                 }
 285         }
 286
 287         //-----------------------------------------------------
 288         // Apply all audio filters
 289         //-----------------------------------------------------
 290
 291         while(bSuccess && (!m_filters.isEmpty()) && (!m_aborted))
 292         {
 293                 QString tempFile = generateTempFileName();
 294                 AbstractFilter *poFilter = m_filters.takeFirst();
 295                 m_currentStep = FilteringStep;
 296
 297                 connect(poFilter, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 298                 connect(poFilter, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 299
 300                 const AbstractFilter::FilterResult filterResult = poFilter->apply(sourceFile, tempFile, &m_audioFile.techInfo(), m_aborted);
 301                 switch (filterResult)
 302                 {
 303                 case AbstractFilter::FILTER_SUCCESS:
 304                         sourceFile = tempFile;
 305                         break;
 306                 case AbstractFilter::FILTER_FAILURE:
 307                         bSuccess = false;
 308                         break;
 309                 }
 310
 311                 handleMessage("\n-------------------------------\n");
 312                 delete poFilter;
 313         }
 314
 315         //-----------------------------------------------------
 316         // Encode audio file
 317         //-----------------------------------------------------
 318
 319         if(bSuccess && (!m_aborted))
 320         {
 321                 m_currentStep = EncodingStep;
 322                 bSuccess = m_encoder->encode(sourceFile, m_audioFile.metaInfo(), m_audioFile.techInfo().duration(), m_audioFile.techInfo().audioChannels(), m_outFileName, m_aborted);
 323         }
 324
 325         //Clean-up
 326         if((!bSuccess) || MUTILS_BOOLIFY(m_aborted))
 327         {
 328                 QFileInfo fileInfo(m_outFileName);
 329                 if(fileInfo.exists() && (fileInfo.size() < 1024))
 330                 {
 331                         QFile::remove(m_outFileName);
 332                 }
 333         }
 334
 335         //Make sure output file exists
 336         if(bSuccess && (!m_aborted))
 337         {
 338                 const QFileInfo fileInfo(m_outFileName);
 339                 bSuccess = fileInfo.exists() && fileInfo.isFile() && (fileInfo.size() >= 1024);
 340         }
 341
 342         //-----------------------------------------------------
 343         // Finalize
 344         //-----------------------------------------------------
 345
 346         if (bSuccess && (!m_aborted) && m_keepDateTime)
 347         {
 348                 updateFileTime(m_audioFile.filePath(), m_outFileName);
 349         }
 350
 351         MUtils::OS::sleep_ms(12);
 352
 353         //Report result
 354         emit processStateChanged(m_jobId, (MUTILS_BOOLIFY(m_aborted) ? tr("Aborted!") : (bSuccess ? tr("Done.") : tr("Failed!"))), ((bSuccess && (!m_aborted)) ? ProgressModel::JobComplete : ProgressModel::JobFailed));
 355         emit processStateFinished(m_jobId, m_outFileName, (bSuccess ? 1 : 0));
 356
 357         qDebug("Process thread is done.");
 358 }
 359
 360 ////////////////////////////////////////////////////////////
 361 // SLOTS
 362 ////////////////////////////////////////////////////////////
 363
 364 void ProcessThread::handleUpdate(int progress)
 365 {
 366         //qDebug("Progress: %d\n", progress);
 367
 368         switch(m_currentStep)
 369         {
 370         case EncodingStep:
 371                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Encoding"), QString::number(progress)), ProgressModel::JobRunning);
 372                 break;
 373         case AnalyzeStep:
 374                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Analyzing"), QString::number(progress)), ProgressModel::JobRunning);
 375                 break;
 376         case FilteringStep:
 377                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Filtering"), QString::number(progress)), ProgressModel::JobRunning);
 378                 break;
 379         case DecodingStep:
 380                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Decoding"), QString::number(progress)), ProgressModel::JobRunning);
 381                 break;
 382         }
 383 }
 384
 385 void ProcessThread::handleMessage(const QString &line)
 386 {
 387         emit processMessageLogged(m_jobId, line);
 388 }
 389
 390 ////////////////////////////////////////////////////////////
 391 // PRIVAE FUNCTIONS
 392 ////////////////////////////////////////////////////////////
 393
 394 int ProcessThread::generateOutFileName(QString &outFileName)
 395 {
 396         outFileName.clear();
 397
 398         //Make sure the source file exists
 399         const QFileInfo sourceFile(m_audioFile.filePath());
 400         if(!(sourceFile.exists() && sourceFile.isFile()))
 401         {
 402                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be found:"), sourceFile.absoluteFilePath()));
 403                 return 0;
 404         }
 405
 406         //Make sure the source file readable
 407         QFile readTest(sourceFile.canonicalFilePath());
 408         if(!readTest.open(QIODevice::ReadOnly))
 409         {
 410                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be opened for reading:"), QDir::toNativeSeparators(readTest.fileName())));
 411                 return 0;
 412         }
 413         else
 414         {
 415                 readTest.close();
 416         }
 417
 418         const QString baseName = sourceFile.completeBaseName();
 419         QDir targetDir(MUtils::clean_file_path(m_outputDirectory.isEmpty() ? sourceFile.canonicalPath() : m_outputDirectory, false));
 420
 421         //Prepend relative source file path?
 422         if(m_prependRelativeSourcePath && !m_outputDirectory.isEmpty())
 423         {
 424                 QDir sourceDir = sourceFile.dir();
 425                 if (!sourceDir.isRoot())
 426                 {
 427                         quint32 depth = 0;
 428                         while ((!sourceDir.isRoot()) && (++depth <= 0xFF))
 429                         {
 430                                 if (!sourceDir.cdUp()) break;
 431                         }
 432                         const QString postfix = QFileInfo(sourceDir.relativeFilePath(sourceFile.canonicalFilePath())).path();
 433                         targetDir.setPath(MUtils::clean_file_path(QString("%1/%2").arg(targetDir.absolutePath(), postfix), false));
 434                 }
 435         }
 436
 437         //Make sure output directory does exist
 438         if(!targetDir.exists())
 439         {
 440                 targetDir.mkpath(".");
 441                 if(!targetDir.exists())
 442                 {
 443                         handleMessage(QString("%1\n%2").arg(tr("The target output directory doesn't exist and could NOT be created:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 444                         return 0;
 445                 }
 446         }
 447
 448         //Make sure that the output dir is writable
 449         QFile writeTest(QString("%1/.%2").arg(targetDir.canonicalPath(), MUtils::next_rand_str()));
 450         if(!writeTest.open(QIODevice::ReadWrite))
 451         {
 452                 handleMessage(QString("%1\n%2").arg(tr("The target output directory is NOT writable:"), QDir::toNativeSeparators(targetDir.absolutePath())));
 453                 return 0;
 454         }
 455         else
 456         {
 457                 writeTest.remove();
 458         }
 459
 460         //Apply rename pattern
 461         const QString fileName = MUtils::clean_file_name(applyRegularExpression(applyRenamePattern(baseName, m_audioFile.metaInfo())), true);
 462
 463         //Generate full output path
 464         const QString fileExt = m_renameFileExt.isEmpty() ? QString::fromUtf8(m_encoder->toEncoderInfo()->extension()) : m_renameFileExt;
 465         outFileName = QString("%1/%2.%3").arg(targetDir.canonicalPath(), fileName, fileExt);
 466
 467         //Skip file, if target file exists (optional!)
 468         if((m_overwriteMode == OverwriteMode_SkipExisting) && QFileInfo(outFileName).exists())
 469         {
 470                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to skip this file:"), QDir::toNativeSeparators(outFileName)));
 471                 handleMessage(tr("If you don't want existing files to be skipped, please change the overwrite mode!"));
 472                 return -1;
 473         }
 474
 475         //Delete file, if target file exists (optional!)
 476         if((m_overwriteMode == OverwriteMode_Overwrite) && QFileInfo(outFileName).exists() && QFileInfo(outFileName).isFile())
 477         {
 478                 handleMessage(QString("%1\n%2\n").arg(tr("Target output file already exists, going to delete existing file:"), QDir::toNativeSeparators(outFileName)));
 479                 if(sourceFile.canonicalFilePath().compare(QFileInfo(outFileName).absoluteFilePath(), Qt::CaseInsensitive) != 0)
 480                 {
 481                         for(int i = 0; i < 16; i++)
 482                         {
 483                                 if(QFile::remove(outFileName))
 484                                 {
 485                                         break;
 486                                 }
 487                                 MUtils::OS::sleep_ms(1);
 488                         }
 489                 }
 490                 if(QFileInfo(outFileName).exists())
 491                 {
 492                         handleMessage(QString("%1\n").arg(tr("Failed to delete existing target file, will save to another file name!")));
 493                 }
 494         }
 495
 496         int n = 1;
 497
 498         //Generate final name
 499         while(QFileInfo(outFileName).exists() && (n < (INT_MAX/2)))
 500         {
 501                 outFileName = QString("%1/%2 (%3).%4").arg(targetDir.canonicalPath(), fileName, QString::number(++n), fileExt);
 502         }
 503
 504         //Create placeholder
 505         QFile placeholder(outFileName);
 506         if(placeholder.open(QIODevice::WriteOnly))
 507         {
 508                 placeholder.close();
 509         }
 510
 511         return 1;
 512 }
 513
 514 QString ProcessThread::applyRenamePattern(const QString &baseName, const AudioFileModel_MetaInfo &metaInfo)
 515 {
 516         QString fileName = m_renamePattern;
 517
 518         fileName.replace("<BaseName>", STRDEF(baseName, tr("Unknown File Name")),         Qt::CaseInsensitive);
 519         fileName.replace("<TrackNo>",  QString().sprintf("%02d", metaInfo.position()),    Qt::CaseInsensitive);
 520         fileName.replace("<Title>",    STRDEF(metaInfo.title(), tr("Unknown Title")) ,    Qt::CaseInsensitive);
 521         fileName.replace("<Artist>",   STRDEF(metaInfo.artist(), tr("Unknown Artist")),   Qt::CaseInsensitive);
 522         fileName.replace("<Album>",    STRDEF(metaInfo.album(), tr("Unknown Album")),     Qt::CaseInsensitive);
 523         fileName.replace("<Year>",     QString().sprintf("%04d", metaInfo.year()),        Qt::CaseInsensitive);
 524         fileName.replace("<Comment>",  STRDEF(metaInfo.comment(), tr("Unknown Comment")), Qt::CaseInsensitive);
 525
 526         return fileName.trimmed().isEmpty() ? baseName : fileName;
 527 }
 528
 529 QString ProcessThread::applyRegularExpression(const QString &baseName)
 530 {
 531         if(m_renameRegExp_Search.isEmpty() || m_renameRegExp_Replace.isEmpty())
 532         {
 533                 return baseName;
 534         }
 535
 536         QRegExp regExp(m_renameRegExp_Search);
 537         if(!regExp.isValid())
 538         {
 539                 qWarning("Invalid regular expression detected -> cannot rename!");
 540                 return baseName;
 541         }
 542
 543         const QString fileName = QString(baseName).replace(regExp, m_renameRegExp_Replace);
 544         return fileName.trimmed().isEmpty() ? baseName : fileName;
 545 }
 546
 547 QString ProcessThread::generateTempFileName(void)
 548 {
 549         const QString tempFileName = MUtils::make_temp_file(m_tempDirectory, "wav", true);
 550         if(tempFileName.isEmpty())
 551         {
 552                 return QString("%1/~whoops%2.wav").arg(m_tempDirectory, QString::number(MUtils::next_rand_u32()));
 553         }
 554
 555         m_tempFiles << tempFileName;
 556         return tempFileName;
 557 }
 558
 559 bool ProcessThread::insertDownsampleFilter(const unsigned int *const supportedSamplerates, const unsigned int *const supportedBitdepths)
 560 {
 561         int targetSampleRate = 0, targetBitDepth = 0;
 562
 563         /* Adjust sample rate */
 564         if(supportedSamplerates && m_audioFile.techInfo().audioSamplerate())
 565         {
 566                 const unsigned int inputRate = m_audioFile.techInfo().audioSamplerate();
 567                 unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestRate = UINT_MAX;
 568
 569                 //Find the most suitable supported sampling rate
 570                 for(int i = 0; supportedSamplerates[i]; i++)
 571                 {
 572                         currentDiff = DIFF(inputRate, supportedSamplerates[i]);
 573                         if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestRate < supportedSamplerates[i])))
 574                         {
 575                                 bestRate = supportedSamplerates[i];
 576                                 minimumDiff = currentDiff;
 577                                 if(!(minimumDiff > 0)) break;
 578                         }
 579                 }
 580
 581                 if(bestRate != inputRate)
 582                 {
 583                         targetSampleRate = (bestRate != UINT_MAX) ? bestRate : supportedSamplerates[0];
 584                 }
 585         }
 586
 587         /* Adjust bit depth (word size) */
 588         if(supportedBitdepths && m_audioFile.techInfo().audioBitdepth())
 589         {
 590                 const unsigned int inputBPS = m_audioFile.techInfo().audioBitdepth();
 591                 bool bAdjustBitdepth = true;
 592
 593                 //Is the input bit depth supported exactly? (including IEEE Float)
 594                 for(int i = 0; supportedBitdepths[i]; i++)
 595                 {
 596                         if(supportedBitdepths[i] == inputBPS) bAdjustBitdepth = false;
 597                 }
 598
 599                 if(bAdjustBitdepth)
 600                 {
 601                         unsigned int currentDiff = UINT_MAX, minimumDiff = UINT_MAX, bestBPS = UINT_MAX;
 602                         const unsigned int originalBPS = (inputBPS == AudioFileModel::BITDEPTH_IEEE_FLOAT32) ? 32 : inputBPS;
 603
 604                         //Find the most suitable supported bit depth
 605                         for(int i = 0; supportedBitdepths[i]; i++)
 606                         {
 607                                 if(supportedBitdepths[i] == AudioFileModel::BITDEPTH_IEEE_FLOAT32) continue;
 608
 609                                 currentDiff = DIFF(originalBPS, supportedBitdepths[i]);
 610                                 if((currentDiff < minimumDiff) || ((currentDiff == minimumDiff) && (bestBPS < supportedBitdepths[i])))
 611                                 {
 612                                         bestBPS = supportedBitdepths[i];
 613                                         minimumDiff = currentDiff;
 614                                         if(!(minimumDiff > 0)) break;
 615                                 }
 616                         }
 617
 618                         if(bestBPS != originalBPS)
 619                         {
 620                                 targetBitDepth = (bestBPS != UINT_MAX) ? bestBPS : supportedBitdepths[0];
 621                         }
 622                 }
 623         }
 624
 625         //Check if downsampling filter is already in the chain
 626         if (targetSampleRate || targetBitDepth)
 627         {
 628                 for (int i = 0; i < m_filters.count(); i++)
 629                 {
 630                         if (dynamic_cast<ResampleFilter*>(m_filters.at(i)))
 631                         {
 632                                 qWarning("Encoder requires downsampling, but user has already set resamling filter!");
 633                                 handleMessage("WARNING: Encoder may need resampling, but already using resample filter. Encoding *may* fail!\n");
 634                                 targetSampleRate = targetBitDepth = 0;
 635                         }
 636                 }
 637         }
 638
 639         /* Insert the filter */
 640         if(targetSampleRate || targetBitDepth)
 641         {
 642                 m_filters.append(new ResampleFilter(targetSampleRate, targetBitDepth));
 643                 return true;
 644         }
 645
 646         return false; /*did not insert the resample filter */
 647 }
 648
 649 bool ProcessThread::insertDownmixFilter(const unsigned int *const supportedChannels)
 650 {
 651         //Determine number of channels in source
 652         const unsigned int channels = m_audioFile.techInfo().audioChannels();
 653         bool requiresDownmix = (channels > 0);
 654
 655         //Check whether encoder requires downmixing
 656         if(requiresDownmix)
 657         {
 658                 for (int i = 0; supportedChannels[i]; i++)
 659                 {
 660                         if (supportedChannels[i] == channels)
 661                         {
 662                                 requiresDownmix = false;
 663                                 break;
 664                         }
 665                 }
 666         }
 667
 668         //Check if downmixing filter is already in the chain
 669         if (requiresDownmix)
 670         {
 671                 for (int i = 0; i < m_filters.count(); i++)
 672                 {
 673                         if (dynamic_cast<DownmixFilter*>(m_filters.at(i)))
 674                         {
 675                                 qWarning("Encoder requires Stereo downmix, but user has already forced downmix!");
 676                                 handleMessage("WARNING: Encoder may need downmixning, but already using downmixning filter. Encoding *may* fail!\n");
 677                                 requiresDownmix = false;
 678                                 break;
 679                         }
 680                 }
 681         }
 682
 683         //Now add the downmixing filter, if needed
 684         if(requiresDownmix)
 685         {
 686                 m_filters.append(new DownmixFilter());
 687                 return true;
 688         }
 689
 690         return false; /*did not insert the downmix filter*/
 691 }
 692
 693 bool ProcessThread::updateFileTime(const QString &originalFile, const QString &modifiedFile)
 694 {
 695         bool success = false;
 696
 697         QFileInfo originalFileInfo(originalFile);
 698         const QDateTime timeCreated = originalFileInfo.created(), timeLastMod = originalFileInfo.lastModified();
 699         if (timeCreated.isValid() && timeLastMod.isValid())
 700         {
 701                 if (!MUtils::OS::set_file_time(modifiedFile, timeCreated, timeLastMod))
 702                 {
 703                         qWarning("Failed to update creation/modified time of output file: \"%s\"", MUTILS_UTF8(modifiedFile));
 704                 }
 705         }
 706         else
 707         {
 708                 qWarning("Failed to read creation/modified time of source file: \"%s\"", MUTILS_UTF8(originalFile));
 709         }
 710
 711         return success;
 712 }
 713
 714 ////////////////////////////////////////////////////////////
 715 // PUBLIC FUNCTIONS
 716 ////////////////////////////////////////////////////////////
 717
 718 void ProcessThread::addFilter(AbstractFilter *filter)
 719 {
 720         m_filters.append(filter);
 721 }
 722
 723 void ProcessThread::setRenamePattern(const QString &pattern)
 724 {
 725         const QString newPattern = pattern.simplified();
 726         if(!newPattern.isEmpty()) m_renamePattern = newPattern;
 727 }
 728
 729 void ProcessThread::setRenameRegExp(const QString &search, const QString &replace)
 730 {
 731         const QString newSearch = search.trimmed(), newReplace = replace.simplified();
 732         if((!newSearch.isEmpty()) && (!newReplace.isEmpty()))
 733         {
 734                 m_renameRegExp_Search  = newSearch;
 735                 m_renameRegExp_Replace = newReplace;
 736         }
 737 }
 738
 739 void ProcessThread::setRenameFileExt(const QString &fileExtension)
 740 {
 741         m_renameFileExt = MUtils::clean_file_name(fileExtension, false).simplified();
 742         while(m_renameFileExt.startsWith('.'))
 743         {
 744                 m_renameFileExt = m_renameFileExt.mid(1).trimmed();
 745         }
 746 }
 747
 748 void ProcessThread::setOverwriteMode(const bool &bSkipExistingFile, const bool &bReplacesExisting)
 749 {
 750         if(bSkipExistingFile && bReplacesExisting)
 751         {
 752                 qWarning("Inconsistent overwrite flags -> reverting to default!");
 753                 m_overwriteMode = OverwriteMode_KeepBoth;
 754         }
 755         else
 756         {
 757                 m_overwriteMode = OverwriteMode_KeepBoth;
 758                 if(bSkipExistingFile) m_overwriteMode = OverwriteMode_SkipExisting;
 759                 if(bReplacesExisting) m_overwriteMode = OverwriteMode_Overwrite;
 760         }
 761 }
 762
 763 void ProcessThread::setKeepDateTime(const bool &keepDateTime)
 764 {
 765         m_keepDateTime = keepDateTime;
 766 }
 767
 768 ////////////////////////////////////////////////////////////
 769 // EVENTS
 770 ////////////////////////////////////////////////////////////
 771
 772 /*NONE*/