src/Thread_FileAnalyzer_Task.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2012 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.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Thread_FileAnalyzer_Task.h"
  23
  24 #include "Global.h"
  25 #include "LockedFile.h"
  26 #include "Model_AudioFile.h"
  27 #include "PlaylistImporter.h"
  28
  29 #include <QDir>
  30 #include <QFileInfo>
  31 #include <QProcess>
  32 #include <QDate>
  33 #include <QTime>
  34 #include <QDebug>
  35 #include <QImage>
  36 #include <QReadLocker>
  37 #include <QWriteLocker>
  38 #include <QThread>
  39
  40 #include <math.h>
  41 #include <time.h>
  42 #include <assert.h>
  43
  44 #define IS_KEY(KEY) (key.compare(KEY, Qt::CaseInsensitive) == 0)
  45 #define IS_SEC(SEC) (key.startsWith((SEC "_"), Qt::CaseInsensitive))
  46 #define FIRST_TOK(STR) (STR.split(" ", QString::SkipEmptyParts).first())
  47
  48 /* static vars */
  49 QMutex AnalyzeTask::s_waitMutex;
  50 QWaitCondition AnalyzeTask::s_waitCond;
  51 QSet<unsigned int> AnalyzeTask::s_threadIdx_running;
  52 unsigned int AnalyzeTask::s_threadIdx_next = 0;
  53 QSemaphore AnalyzeTask::s_semaphore(0);
  54
  55 /* more static vars */
  56 QReadWriteLock AnalyzeTask::s_lock;
  57 unsigned int AnalyzeTask::s_filesAccepted = 0;
  58 unsigned int AnalyzeTask::s_filesRejected = 0;
  59 unsigned int AnalyzeTask::s_filesDenied = 0;
  60 unsigned int AnalyzeTask::s_filesDummyCDDA = 0;
  61 unsigned int AnalyzeTask::s_filesCueSheet = 0;
  62 QStringList AnalyzeTask::s_additionalFiles;
  63 QSet<QString> AnalyzeTask::s_recentlyAdded;
  64
  65 /*constants*/
  66 const int WAITCOND_TIMEOUT = 2500;
  67 const int MAX_RETRIES = 60000 / WAITCOND_TIMEOUT;
  68 const int MAX_QUEUE_SLOTS = 32;
  69
  70 ////////////////////////////////////////////////////////////
  71 // Constructor
  72 ////////////////////////////////////////////////////////////
  73
  74 AnalyzeTask::AnalyzeTask(const QString &inputFile, const QString &templateFile, volatile bool *abortFlag)
  75 :
  76         m_threadIdx(makeThreadIdx()),
  77         m_inputFile(inputFile),
  78         m_templateFile(templateFile),
  79         m_mediaInfoBin(lamexp_lookup_tool("mediainfo.exe")),
  80         m_avs2wavBin(lamexp_lookup_tool("avs2wav.exe")),
  81         m_abortFlag(abortFlag)
  82 {
  83         if(m_mediaInfoBin.isEmpty() || m_avs2wavBin.isEmpty())
  84         {
  85                 qFatal("Invalid path to MediaInfo binary. Tool not initialized properly.");
  86         }
  87 }
  88
  89 AnalyzeTask::~AnalyzeTask(void)
  90 {
  91         s_semaphore.release();
  92
  93         s_waitMutex.lock();
  94         s_threadIdx_running.remove(m_threadIdx);
  95         s_waitMutex.unlock();
  96
  97         s_waitCond.wakeAll();
  98 }
  99
 100 ////////////////////////////////////////////////////////////
 101 // Thread Main
 102 ////////////////////////////////////////////////////////////
 103
 104 void AnalyzeTask::run()
 105 {
 106         try
 107         {
 108                 run_ex();
 109         }
 110         catch(...)
 111         {
 112                 qWarning("WARNING: Caught an in exception AnalyzeTask thread!");
 113         }
 114
 115         s_waitMutex.lock();
 116         s_threadIdx_running.remove(m_threadIdx);
 117         s_waitMutex.unlock();
 118
 119         s_waitCond.wakeAll();
 120 }
 121
 122 void AnalyzeTask::run_ex(void)
 123 {
 124         int fileType = fileTypeNormal;
 125         QString currentFile = QDir::fromNativeSeparators(m_inputFile);
 126         qDebug("Analyzing: %s", currentFile.toUtf8().constData());
 127
 128         emit fileSelected(QFileInfo(currentFile).fileName());
 129         emit progressValChanged(m_threadIdx + 1);
 130
 131         AudioFileModel file = analyzeFile(currentFile, &fileType);
 132
 133         if(*m_abortFlag)
 134         {
 135                 qWarning("Operation cancelled by user!");
 136                 return;
 137         }
 138         if(fileType == fileTypeSkip)
 139         {
 140                 qWarning("File was recently added, skipping!");
 141                 return;
 142         }
 143         if(fileType == fileTypeDenied)
 144         {
 145                 QWriteLocker lock(&s_lock);
 146                 s_filesDenied++;
 147                 lock.unlock();
 148                 qWarning("Cannot access file for reading, skipping!");
 149                 return;
 150         }
 151         if(fileType == fileTypeCDDA)
 152         {
 153                 QWriteLocker lock(&s_lock);
 154                 s_filesDummyCDDA++;
 155                 lock.unlock();
 156                 qWarning("Dummy CDDA file detected, skipping!");
 157                 return;
 158         }
 159
 160         //Handle files with *incomplete* meida info
 161         if(file.fileName().isEmpty() || file.formatContainerType().isEmpty() || file.formatAudioType().isEmpty())
 162         {
 163                 QStringList fileList;
 164                 if(PlaylistImporter::importPlaylist(fileList, currentFile))
 165                 {
 166                         qDebug("Imported playlist file.");
 167                         QWriteLocker lock(&s_lock);
 168                         s_additionalFiles << fileList;
 169                 }
 170                 else if(!QFileInfo(currentFile).suffix().compare("cue", Qt::CaseInsensitive))
 171                 {
 172                         QWriteLocker lock(&s_lock);
 173                         qWarning("Cue Sheet file detected, skipping!");
 174                         s_filesCueSheet++;
 175                 }
 176                 else if(!QFileInfo(currentFile).suffix().compare("avs", Qt::CaseInsensitive))
 177                 {
 178                         qDebug("Found a potential Avisynth script, investigating...");
 179                         if(analyzeAvisynthFile(currentFile, file))
 180                         {
 181                                 QWriteLocker lock(&s_lock);
 182                                 s_filesAccepted++;
 183                                 s_recentlyAdded.insert(file.filePath().toLower());
 184                                 lock.unlock();
 185                                 waitForPreviousThreads();
 186                                 emit fileAnalyzed(file);
 187                         }
 188                         else
 189                         {
 190                                 QWriteLocker lock(&s_lock);
 191                                 qDebug("Rejected Avisynth file: %s", file.filePath().toUtf8().constData());
 192                                 s_filesRejected++;
 193                         }
 194                 }
 195                 else
 196                 {
 197                         QWriteLocker lock(&s_lock);
 198                         qDebug("Rejected file of unknown type: %s", file.filePath().toUtf8().constData());
 199                         s_filesRejected++;
 200                 }
 201                 return;
 202         }
 203
 204         //Emit the file now!
 205         QWriteLocker lock(&s_lock);
 206         s_filesAccepted++;
 207         s_recentlyAdded.insert(file.filePath().toLower());
 208         lock.unlock();
 209         waitForPreviousThreads();
 210         emit fileAnalyzed(file);
 211 }
 212
 213 ////////////////////////////////////////////////////////////
 214 // Privtae Functions
 215 ////////////////////////////////////////////////////////////
 216
 217 const AudioFileModel AnalyzeTask::analyzeFile(const QString &filePath, int *type)
 218 {
 219         *type = fileTypeNormal;
 220         AudioFileModel audioFile(filePath);
 221
 222         QReadLocker readLock(&s_lock);
 223         if(s_recentlyAdded.contains(filePath.toLower()))
 224         {
 225                 *type = fileTypeSkip;
 226                 return audioFile;
 227         }
 228         readLock.unlock();
 229
 230         QFile readTest(filePath);
 231         if(!readTest.open(QIODevice::ReadOnly))
 232         {
 233                 *type = fileTypeDenied;
 234                 return audioFile;
 235         }
 236         if(checkFile_CDDA(readTest))
 237         {
 238                 *type = fileTypeCDDA;
 239                 return audioFile;
 240         }
 241         readTest.close();
 242
 243         bool skipNext = false;
 244         unsigned int id_val[2] = {UINT_MAX, UINT_MAX};
 245         cover_t coverType = coverNone;
 246         QByteArray coverData;
 247
 248         QStringList params;
 249         params << QString("--Inform=file://%1").arg(QDir::toNativeSeparators(m_templateFile));
 250         params << QDir::toNativeSeparators(filePath);
 251
 252         QProcess process;
 253         process.setProcessChannelMode(QProcess::MergedChannels);
 254         process.setReadChannel(QProcess::StandardOutput);
 255         process.start(m_mediaInfoBin, params);
 256
 257         if(!process.waitForStarted())
 258         {
 259                 qWarning("MediaInfo process failed to create!");
 260                 qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
 261                 process.kill();
 262                 process.waitForFinished(-1);
 263                 return audioFile;
 264         }
 265
 266         while(process.state() != QProcess::NotRunning)
 267         {
 268                 if(*m_abortFlag)
 269                 {
 270                         process.kill();
 271                         qWarning("Process was aborted on user request!");
 272                         break;
 273                 }
 274
 275                 if(!process.waitForReadyRead())
 276                 {
 277                         if(process.state() == QProcess::Running)
 278                         {
 279                                 qWarning("MediaInfo time out. Killing process and skipping file!");
 280                                 process.kill();
 281                                 process.waitForFinished(-1);
 282                                 return audioFile;
 283                         }
 284                 }
 285
 286                 QByteArray data;
 287
 288                 while(process.canReadLine())
 289                 {
 290                         QString line = QString::fromUtf8(process.readLine().constData()).simplified();
 291                         if(!line.isEmpty())
 292                         {
 293                                 //qDebug("Line:%s", line.toUtf8().constData());
 294
 295                                 int index = line.indexOf('=');
 296                                 if(index > 0)
 297                                 {
 298                                         QString key = line.left(index).trimmed();
 299                                         QString val = line.mid(index+1).trimmed();
 300                                         if(!key.isEmpty())
 301                                         {
 302                                                 updateInfo(audioFile, &skipNext, id_val, &coverType, &coverData, key, val);
 303                                         }
 304                                 }
 305                         }
 306                 }
 307         }
 308
 309         if(audioFile.fileName().isEmpty())
 310         {
 311                 QString baseName = QFileInfo(filePath).fileName();
 312                 int index = baseName.lastIndexOf(".");
 313
 314                 if(index >= 0)
 315                 {
 316                         baseName = baseName.left(index);
 317                 }
 318
 319                 baseName = baseName.replace("_", " ").simplified();
 320                 index = baseName.lastIndexOf(" - ");
 321
 322                 if(index >= 0)
 323                 {
 324                         baseName = baseName.mid(index + 3).trimmed();
 325                 }
 326
 327                 audioFile.setFileName(baseName);
 328         }
 329
 330         process.waitForFinished();
 331         if(process.state() != QProcess::NotRunning)
 332         {
 333                 process.kill();
 334                 process.waitForFinished(-1);
 335         }
 336
 337         if((coverType != coverNone) && (!coverData.isEmpty()))
 338         {
 339                 retrieveCover(audioFile, coverType, coverData);
 340         }
 341
 342         if((audioFile.formatAudioType().compare("PCM", Qt::CaseInsensitive) == 0) && (audioFile.formatAudioProfile().compare("Float", Qt::CaseInsensitive) == 0))
 343         {
 344                 if(audioFile.formatAudioBitdepth() == 32) audioFile.setFormatAudioBitdepth(AudioFileModel::BITDEPTH_IEEE_FLOAT32);
 345         }
 346
 347         return audioFile;
 348 }
 349
 350 void AnalyzeTask::updateInfo(AudioFileModel &audioFile, bool *skipNext, unsigned int *id_val, cover_t *coverType, QByteArray *coverData, const QString &key, const QString &value)
 351 {
 352         //qWarning("'%s' -> '%s'", key.toUtf8().constData(), value.toUtf8().constData());
 353
 354         /*New Stream*/
 355         if(IS_KEY("Gen_ID") || IS_KEY("Aud_ID"))
 356         {
 357                 if(value.isEmpty())
 358                 {
 359                         *skipNext = false;
 360                 }
 361                 else
 362                 {
 363                         //We ignore all ID's, except for the lowest one!
 364                         bool ok = false;
 365                         unsigned int id = value.toUInt(&ok);
 366                         if(ok)
 367                         {
 368                                 if(IS_KEY("Gen_ID")) { id_val[0] = qMin(id_val[0], id); *skipNext = (id > id_val[0]); }
 369                                 if(IS_KEY("Aud_ID")) { id_val[1] = qMin(id_val[1], id); *skipNext = (id > id_val[1]); }
 370                         }
 371                         else
 372                         {
 373                                 *skipNext = true;
 374                         }
 375                 }
 376                 if(*skipNext)
 377                 {
 378                         qWarning("Skipping info for non-primary stream!");
 379                 }
 380                 return;
 381         }
 382
 383         /*Skip or empty?*/
 384         if((*skipNext) || value.isEmpty())
 385         {
 386                 return;
 387         }
 388
 389         /*Playlist file?*/
 390         if(IS_KEY("Aud_Source"))
 391         {
 392                 *skipNext = true;
 393                 audioFile.setFormatContainerType(QString());
 394                 audioFile.setFormatAudioType(QString());
 395                 qWarning("Skipping info for playlist file!");
 396                 return;
 397         }
 398
 399         /*General Section*/
 400         if(IS_SEC("Gen"))
 401         {
 402                 if(IS_KEY("Gen_Format"))
 403                 {
 404                         audioFile.setFormatContainerType(value);
 405                 }
 406                 else if(IS_KEY("Gen_Format_Profile"))
 407                 {
 408                         audioFile.setFormatContainerProfile(value);
 409                 }
 410                 else if(IS_KEY("Gen_Title") || IS_KEY("Gen_Track"))
 411                 {
 412                         audioFile.setFileName(value);
 413                 }
 414                 else if(IS_KEY("Gen_Duration"))
 415                 {
 416                         unsigned int tmp = parseDuration(value);
 417                         if(tmp > 0) audioFile.setFileDuration(tmp);
 418                 }
 419                 else if(IS_KEY("Gen_Artist") || IS_KEY("Gen_Performer"))
 420                 {
 421                         audioFile.setFileArtist(value);
 422                 }
 423                 else if(IS_KEY("Gen_Album"))
 424                 {
 425                         audioFile.setFileAlbum(value);
 426                 }
 427                 else if(IS_KEY("Gen_Genre"))
 428                 {
 429                         audioFile.setFileGenre(value);
 430                 }
 431                 else if(IS_KEY("Gen_Released_Date") || IS_KEY("Gen_Recorded_Date"))
 432                 {
 433                         unsigned int tmp = parseYear(value);
 434                         if(tmp > 0) audioFile.setFileYear(tmp);
 435                 }
 436                 else if(IS_KEY("Gen_Comment"))
 437                 {
 438                         audioFile.setFileComment(value);
 439                 }
 440                 else if(IS_KEY("Gen_Track/Position"))
 441                 {
 442                         bool ok = false;
 443                         unsigned int tmp = value.toUInt(&ok);
 444                         if(ok) audioFile.setFilePosition(tmp);
 445                 }
 446                 else if(IS_KEY("Gen_Cover") || IS_KEY("Gen_Cover_Type"))
 447                 {
 448                         if(*coverType == coverNone)
 449                         {
 450                                 *coverType = coverJpeg;
 451                         }
 452                 }
 453                 else if(IS_KEY("Gen_Cover_Mime"))
 454                 {
 455                         QString temp = FIRST_TOK(value);
 456                         if(!temp.compare("image/jpeg", Qt::CaseInsensitive)) *coverType = coverJpeg;
 457                         else if(!temp.compare("image/png", Qt::CaseInsensitive)) *coverType = coverPng;
 458                         else if(!temp.compare("image/gif", Qt::CaseInsensitive)) *coverType = coverGif;
 459                 }
 460                 else if(IS_KEY("Gen_Cover_Data"))
 461                 {
 462                         if(!coverData->isEmpty()) coverData->clear();
 463                         coverData->append(QByteArray::fromBase64(FIRST_TOK(value).toLatin1()));
 464                 }
 465                 else
 466                 {
 467                         qWarning("Unknown key '%s' with value '%s' found!", key.toUtf8().constData(), value.toUtf8().constData());
 468                 }
 469                 return;
 470         }
 471
 472         /*Audio Section*/
 473         if(IS_SEC("Aud"))
 474         {
 475
 476                 if(IS_KEY("Aud_Format"))
 477                 {
 478                         audioFile.setFormatAudioType(value);
 479                 }
 480                 else if(IS_KEY("Aud_Format_Profile"))
 481                 {
 482                         audioFile.setFormatAudioProfile(value);
 483                 }
 484                 else if(IS_KEY("Aud_Format_Version"))
 485                 {
 486                         audioFile.setFormatAudioVersion(value);
 487                 }
 488                 else if(IS_KEY("Aud_Channel(s)"))
 489                 {
 490                         bool ok = false;
 491                         unsigned int tmp = value.toUInt(&ok);
 492                         if(ok) audioFile.setFormatAudioChannels(tmp);
 493                 }
 494                 else if(IS_KEY("Aud_SamplingRate"))
 495                 {
 496                         bool ok = false;
 497                         unsigned int tmp = value.toUInt(&ok);
 498                         if(ok) audioFile.setFormatAudioSamplerate(tmp);
 499                 }
 500                 else if(IS_KEY("Aud_BitDepth"))
 501                 {
 502                         bool ok = false;
 503                         unsigned int tmp = value.toUInt(&ok);
 504                         if(ok) audioFile.setFormatAudioBitdepth(tmp);
 505                 }
 506                 else if(IS_KEY("Aud_Duration"))
 507                 {
 508                         unsigned int tmp = parseDuration(value);
 509                         if(tmp > 0) audioFile.setFileDuration(tmp);
 510                 }
 511                 else if(IS_KEY("Aud_BitRate"))
 512                 {
 513                         bool ok = false;
 514                         unsigned int tmp = value.toUInt(&ok);
 515                         if(ok) audioFile.setFormatAudioBitrate(tmp/1000);
 516                 }
 517                 else if(IS_KEY("Aud_BitRate_Mode"))
 518                 {
 519                         if(!value.compare("CBR", Qt::CaseInsensitive)) audioFile.setFormatAudioBitrateMode(AudioFileModel::BitrateModeConstant);
 520                         if(!value.compare("VBR", Qt::CaseInsensitive)) audioFile.setFormatAudioBitrateMode(AudioFileModel::BitrateModeVariable);
 521                 }
 522                 else if(IS_KEY("Aud_Encoded_Library"))
 523                 {
 524                         audioFile.setFormatAudioEncodeLib(value);
 525                 }
 526                 else
 527                 {
 528                         qWarning("Unknown key '%s' with value '%s' found!", key.toUtf8().constData(), value.toUtf8().constData());
 529                 }
 530                 return;
 531         }
 532
 533         /*Section not recognized*/
 534         qWarning("Unknown section: %s", key.toUtf8().constData());
 535 }
 536
 537 bool AnalyzeTask::checkFile_CDDA(QFile &file)
 538 {
 539         file.reset();
 540         QByteArray data = file.read(128);
 541
 542         int i = data.indexOf("RIFF");
 543         int j = data.indexOf("CDDA");
 544         int k = data.indexOf("fmt ");
 545
 546         return ((i >= 0) && (j >= 0) && (k >= 0) && (k > j) && (j > i));
 547 }
 548
 549 void AnalyzeTask::retrieveCover(AudioFileModel &audioFile, cover_t coverType, const QByteArray &coverData)
 550 {
 551         qDebug("Retrieving cover!");
 552         QString extension;
 553
 554         switch(coverType)
 555         {
 556         case coverPng:
 557                 extension = QString::fromLatin1("png");
 558                 break;
 559         case coverGif:
 560                 extension = QString::fromLatin1("gif");
 561                 break;
 562         default:
 563                 extension = QString::fromLatin1("jpg");
 564                 break;
 565         }
 566
 567         if(!(QImage::fromData(coverData, extension.toUpper().toLatin1().constData()).isNull()))
 568         {
 569                 QFile coverFile(QString("%1/%2.%3").arg(lamexp_temp_folder2(), lamexp_rand_str(), extension));
 570                 if(coverFile.open(QIODevice::WriteOnly))
 571                 {
 572                         coverFile.write(coverData);
 573                         coverFile.close();
 574                         audioFile.setFileCover(coverFile.fileName(), true);
 575                 }
 576         }
 577         else
 578         {
 579                 qWarning("Image data seems to be invalid :-(");
 580         }
 581 }
 582
 583 bool AnalyzeTask::analyzeAvisynthFile(const QString &filePath, AudioFileModel &info)
 584 {
 585         QProcess process;
 586         process.setProcessChannelMode(QProcess::MergedChannels);
 587         process.setReadChannel(QProcess::StandardOutput);
 588         process.start(m_avs2wavBin, QStringList() << QDir::toNativeSeparators(filePath) << "?");
 589
 590         if(!process.waitForStarted())
 591         {
 592                 qWarning("AVS2WAV process failed to create!");
 593                 qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
 594                 process.kill();
 595                 process.waitForFinished(-1);
 596                 return false;
 597         }
 598
 599         bool bInfoHeaderFound = false;
 600
 601         while(process.state() != QProcess::NotRunning)
 602         {
 603                 if(*m_abortFlag)
 604                 {
 605                         process.kill();
 606                         qWarning("Process was aborted on user request!");
 607                         break;
 608                 }
 609
 610                 if(!process.waitForReadyRead())
 611                 {
 612                         if(process.state() == QProcess::Running)
 613                         {
 614                                 qWarning("AVS2WAV time out. Killing process and skipping file!");
 615                                 process.kill();
 616                                 process.waitForFinished(-1);
 617                                 return false;
 618                         }
 619                 }
 620
 621                 QByteArray data;
 622
 623                 while(process.canReadLine())
 624                 {
 625                         QString line = QString::fromUtf8(process.readLine().constData()).simplified();
 626                         if(!line.isEmpty())
 627                         {
 628                                 int index = line.indexOf(':');
 629                                 if(index > 0)
 630                                 {
 631                                         QString key = line.left(index).trimmed();
 632                                         QString val = line.mid(index+1).trimmed();
 633
 634                                         if(bInfoHeaderFound && !key.isEmpty() && !val.isEmpty())
 635                                         {
 636                                                 if(key.compare("TotalSeconds", Qt::CaseInsensitive) == 0)
 637                                                 {
 638                                                         bool ok = false;
 639                                                         unsigned int duration = val.toUInt(&ok);
 640                                                         if(ok) info.setFileDuration(duration);
 641                                                 }
 642                                                 if(key.compare("SamplesPerSec", Qt::CaseInsensitive) == 0)
 643                                                 {
 644                                                         bool ok = false;
 645                                                         unsigned int samplerate = val.toUInt(&ok);
 646                                                         if(ok) info.setFormatAudioSamplerate (samplerate);
 647                                                 }
 648                                                 if(key.compare("Channels", Qt::CaseInsensitive) == 0)
 649                                                 {
 650                                                         bool ok = false;
 651                                                         unsigned int channels = val.toUInt(&ok);
 652                                                         if(ok) info.setFormatAudioChannels(channels);
 653                                                 }
 654                                                 if(key.compare("BitsPerSample", Qt::CaseInsensitive) == 0)
 655                                                 {
 656                                                         bool ok = false;
 657                                                         unsigned int bitdepth = val.toUInt(&ok);
 658                                                         if(ok) info.setFormatAudioBitdepth(bitdepth);
 659                                                 }
 660                                         }
 661                                 }
 662                                 else
 663                                 {
 664                                         if(line.contains("[Audio Info]", Qt::CaseInsensitive))
 665                                         {
 666                                                 info.setFormatAudioType("Avisynth");
 667                                                 info.setFormatContainerType("Avisynth");
 668                                                 bInfoHeaderFound = true;
 669                                         }
 670                                 }
 671                         }
 672                 }
 673         }
 674
 675         process.waitForFinished();
 676         if(process.state() != QProcess::NotRunning)
 677         {
 678                 process.kill();
 679                 process.waitForFinished(-1);
 680         }
 681
 682         //Check exit code
 683         switch(process.exitCode())
 684         {
 685         case 0:
 686                 qDebug("Avisynth script was analyzed successfully.");
 687                 return true;
 688                 break;
 689         case -5:
 690                 qWarning("It appears that Avisynth is not installed on the system!");
 691                 return false;
 692                 break;
 693         default:
 694                 qWarning("Failed to open the Avisynth script, bad AVS file?");
 695                 return false;
 696                 break;
 697         }
 698 }
 699
 700 unsigned int AnalyzeTask::parseYear(const QString &str)
 701 {
 702         if(str.startsWith("UTC", Qt::CaseInsensitive))
 703         {
 704                 QDate date = QDate::fromString(str.mid(3).trimmed().left(10), "yyyy-MM-dd");
 705                 if(date.isValid())
 706                 {
 707                         return date.year();
 708                 }
 709                 else
 710                 {
 711                         return 0;
 712                 }
 713         }
 714         else
 715         {
 716                 bool ok = false;
 717                 int year = str.toInt(&ok);
 718                 if(ok && year > 0)
 719                 {
 720                         return year;
 721                 }
 722                 else
 723                 {
 724                         return 0;
 725                 }
 726         }
 727 }
 728
 729 unsigned int AnalyzeTask::parseDuration(const QString &str)
 730 {
 731         bool ok = false;
 732         unsigned int value = str.toUInt(&ok);
 733         return ok ? (value/1000) : 0;
 734 }
 735
 736 unsigned __int64 AnalyzeTask::makeThreadIdx(void)
 737 {
 738         s_waitMutex.lock();
 739         unsigned int idx = s_threadIdx_next++;
 740         s_threadIdx_running.insert(idx);
 741         s_waitMutex.unlock();
 742
 743         return idx;
 744 }
 745
 746 void AnalyzeTask::waitForPreviousThreads(void)
 747 {
 748         //This function will block until all threads with a *lower* index have terminated.
 749         //Required to make sure that the files will be added in the "correct" order!
 750
 751         s_waitMutex.lock();
 752         int retryCount = 0;
 753
 754         forever
 755         {
 756                 bool bWaitFlag = false;
 757                 QSet<unsigned int>::const_iterator i;
 758
 759                 for(i = s_threadIdx_running.begin(); i != s_threadIdx_running.end(); ++i)
 760                 {
 761                         if(*i < m_threadIdx) { bWaitFlag = true; break; }
 762                 }
 763
 764                 if((!bWaitFlag) || *m_abortFlag)
 765                 {
 766                         s_waitMutex.unlock();
 767                         return;
 768                 }
 769
 770                 if(!s_waitCond.wait(&s_waitMutex, WAITCOND_TIMEOUT))
 771                 {
 772                         if(++retryCount > MAX_RETRIES)
 773                         {
 774                                 qWarning("AnalyzeTask::waitForPreviousThreads encountered timeout !!!");
 775                                 s_threadIdx_running.clear();
 776                         }
 777                 }
 778         }
 779 }
 780
 781 ////////////////////////////////////////////////////////////
 782 // Public Functions
 783 ////////////////////////////////////////////////////////////
 784
 785 unsigned int AnalyzeTask::filesAccepted(void)
 786 {
 787         QReadLocker lock(&s_lock);
 788         return s_filesAccepted;
 789 }
 790
 791 unsigned int AnalyzeTask::filesRejected(void)
 792 {
 793         QReadLocker lock(&s_lock);
 794         return s_filesRejected;
 795 }
 796
 797 unsigned int AnalyzeTask::filesDenied(void)
 798 {
 799         QReadLocker lock(&s_lock);
 800         return s_filesDenied;
 801 }
 802
 803 unsigned int AnalyzeTask::filesDummyCDDA(void)
 804 {
 805         QReadLocker lock(&s_lock);
 806         return s_filesDummyCDDA;
 807 }
 808
 809 unsigned int AnalyzeTask::filesCueSheet(void)
 810 {
 811         QReadLocker lock(&s_lock);
 812         return s_filesCueSheet;
 813 }
 814
 815 int AnalyzeTask::getAdditionalFiles(QStringList &fileList)
 816 {
 817         QReadLocker readLock(&s_lock);
 818         int count = s_additionalFiles.count();
 819         readLock.unlock();
 820
 821         if(count > 0)
 822         {
 823                 QWriteLocker lock(&s_lock);
 824                 count = s_additionalFiles.count();
 825                 fileList << s_additionalFiles;
 826                 s_additionalFiles.clear();
 827                 return count;
 828         }
 829
 830         return 0;
 831 }
 832
 833 bool AnalyzeTask::waitForFreeSlot(volatile bool *abortFlag)
 834 {
 835         bool ret = false;
 836
 837         for(int i = 0; i < MAX_RETRIES; i++)
 838         {
 839                 ret = s_semaphore.tryAcquire(1, WAITCOND_TIMEOUT);
 840                 if(ret || (*abortFlag)) break;
 841         }
 842
 843         return ret;
 844 }
 845
 846 void AnalyzeTask::reset(void)
 847 {
 848         QWriteLocker lock(&s_lock);
 849         s_filesAccepted = 0;
 850         s_filesRejected = 0;
 851         s_filesDenied = 0;
 852         s_filesDummyCDDA = 0;
 853         s_filesCueSheet = 0;
 854         s_additionalFiles.clear();
 855         s_recentlyAdded.clear();
 856         lock.unlock();
 857
 858         s_waitMutex.lock();
 859         s_threadIdx_next = 0;
 860         s_threadIdx_running.clear();
 861         s_waitMutex.unlock();
 862
 863         int freeSlots = s_semaphore.available();
 864         if(freeSlots < MAX_QUEUE_SLOTS)
 865         {
 866                 s_semaphore.release(MAX_QUEUE_SLOTS - freeSlots);
 867         }
 868 }
 869
 870 ////////////////////////////////////////////////////////////
 871 // EVENTS
 872 ////////////////////////////////////////////////////////////
 873
 874 /*NONE*/