src/Thread_FileAnalyzer_Task.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_FileAnalyzer_Task.h"
  24
  25 //Internal
  26 #include "Global.h"
  27 #include "LockedFile.h"
  28 #include "Model_AudioFile.h"
  29 #include "MimeTypes.h"
  30
  31 //MUtils
  32 #include <MUtils/Global.h>
  33 #include <MUtils/OSSupport.h>
  34 #include <MUtils/Lazy.h>
  35 #include <MUtils/Exception.h>
  36
  37 //Qt
  38 #include <QDir>
  39 #include <QFileInfo>
  40 #include <QProcess>
  41 #include <QDate>
  42 #include <QTime>
  43 #include <QDebug>
  44 #include <QImage>
  45 #include <QReadLocker>
  46 #include <QWriteLocker>
  47 #include <QThread>
  48 #include <QXmlSimpleReader>
  49 #include <QXmlInputSource>
  50 #include <QXmlStreamReader>
  51 #include <QStack>
  52
  53 //CRT
  54 #include <math.h>
  55 #include <time.h>
  56 #include <assert.h>
  57
  58 ////////////////////////////////////////////////////////////
  59 // Helper Macros
  60 ////////////////////////////////////////////////////////////
  61
  62 #define ADD_PROPTERY_MAPPING_1(TYPE, NAME) do \
  63 { \
  64         ADD_PROPTERY_MAPPING_2(TYPE, NAME, NAME); \
  65 } \
  66 while(0)
  67
  68 #define ADD_PROPTERY_MAPPING_2(TYPE, MI_NAME, LX_NAME) do \
  69 { \
  70         builder->insert(qMakePair(AnalyzeTask::trackType_##TYPE, QString::fromLatin1(#MI_NAME)), AnalyzeTask::propertyId_##LX_NAME); \
  71 } \
  72 while(0)
  73
  74 #define SET_OPTIONAL(TYPE, IF_CMD, THEN_CMD) do \
  75 { \
  76         TYPE _tmp;\
  77         if((IF_CMD)) { THEN_CMD; } \
  78 } \
  79 while(0)
  80
  81 #define DIV_RND(A,B) (((A) + ((B) / 2U)) / (B))
  82 #define STRICMP(A,B) ((A).compare((B), Qt::CaseInsensitive) == 0)
  83
  84 ////////////////////////////////////////////////////////////
  85 // Static initialization
  86 ////////////////////////////////////////////////////////////
  87
  88 static MUtils::Lazy<const QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t>> s_mediaInfoIdx([]
  89 {
  90         QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t> *const builder = new QMap<QPair<AnalyzeTask::MI_trackType_t, QString>, AnalyzeTask::MI_propertyId_t>();
  91         ADD_PROPTERY_MAPPING_2(gen, format, container);
  92         ADD_PROPTERY_MAPPING_2(gen, format_profile, container_profile);
  93         ADD_PROPTERY_MAPPING_1(gen, duration);
  94         ADD_PROPTERY_MAPPING_1(gen, title);
  95         ADD_PROPTERY_MAPPING_2(gen, track, title);
  96         ADD_PROPTERY_MAPPING_1(gen, artist);
  97         ADD_PROPTERY_MAPPING_2(gen, performer, artist);
  98         ADD_PROPTERY_MAPPING_1(gen, album);
  99         ADD_PROPTERY_MAPPING_1(gen, genre);
 100         ADD_PROPTERY_MAPPING_1(gen, released_date);
 101         ADD_PROPTERY_MAPPING_2(gen, recorded_date, released_date);
 102         ADD_PROPTERY_MAPPING_1(gen, track_position);
 103         ADD_PROPTERY_MAPPING_1(gen, comment);
 104         ADD_PROPTERY_MAPPING_1(aud, format);
 105         ADD_PROPTERY_MAPPING_1(aud, format_version);
 106         ADD_PROPTERY_MAPPING_1(aud, format_profile);
 107         ADD_PROPTERY_MAPPING_1(aud, duration);
 108         ADD_PROPTERY_MAPPING_1(aud, channel_s_);
 109         ADD_PROPTERY_MAPPING_1(aud, samplingrate);
 110         ADD_PROPTERY_MAPPING_1(aud, bitdepth);
 111         ADD_PROPTERY_MAPPING_1(aud, bitrate);
 112         ADD_PROPTERY_MAPPING_1(aud, bitrate_mode);
 113         ADD_PROPTERY_MAPPING_1(aud, encoded_library);
 114         ADD_PROPTERY_MAPPING_2(gen, cover_mime, cover_mime);
 115         ADD_PROPTERY_MAPPING_2(gen, cover_data, cover_data);
 116         return builder;
 117 });
 118
 119 static MUtils::Lazy<const QMap<QString, AnalyzeTask::MI_propertyId_t>> s_avisynthIdx([]
 120 {
 121         QMap<QString, AnalyzeTask::MI_propertyId_t> *const builder = new QMap<QString, AnalyzeTask::MI_propertyId_t>();
 122         builder->insert(QLatin1String("totalseconds"),  AnalyzeTask::propertyId_duration);
 123         builder->insert(QLatin1String("samplespersec"), AnalyzeTask::propertyId_samplingrate);
 124         builder->insert(QLatin1String("channels"),      AnalyzeTask::propertyId_channel_s_);
 125         builder->insert(QLatin1String("bitspersample"), AnalyzeTask::propertyId_bitdepth);
 126         return builder;
 127 });
 128
 129 static MUtils::Lazy<const QMap<QString, QString>> s_mimeTypes([]
 130 {
 131         QMap<QString, QString> *const builder = new QMap<QString, QString>();
 132         for (size_t i = 0U; MIME_TYPES[i].type; ++i)
 133         {
 134                 builder->insert(QString::fromLatin1(MIME_TYPES[i].type), QString::fromLatin1(MIME_TYPES[i].ext[0]));
 135         }
 136         return builder;
 137 });
 138
 139 static MUtils::Lazy<const QMap<QString, AnalyzeTask::MI_trackType_t>> s_trackTypes([]
 140 {
 141         QMap<QString, AnalyzeTask::MI_trackType_t> *const builder = new QMap<QString, AnalyzeTask::MI_trackType_t>();
 142         builder->insert("general", AnalyzeTask::trackType_gen);
 143         builder->insert("audio",   AnalyzeTask::trackType_aud);
 144         return builder;
 145 });
 146
 147 ////////////////////////////////////////////////////////////
 148 // Constructor
 149 ////////////////////////////////////////////////////////////
 150
 151 AnalyzeTask::AnalyzeTask(const int taskId, const QString &inputFile, QAtomicInt &abortFlag)
 152 :
 153         m_taskId(taskId),
 154         m_inputFile(inputFile),
 155         m_mediaInfoBin(lamexp_tools_lookup("mediainfo.exe")),
 156         m_mediaInfoVer(lamexp_tools_version("mediainfo.exe")),
 157         m_avs2wavBin(lamexp_tools_lookup("avs2wav.exe")),
 158         m_abortFlag(abortFlag),
 159         m_mediaInfoIdx(*s_mediaInfoIdx),
 160         m_avisynthIdx(*s_avisynthIdx),
 161         m_mimeTypes(*s_mimeTypes),
 162         m_trackTypes(*s_trackTypes)
 163 {
 164         if(m_mediaInfoBin.isEmpty() || m_avs2wavBin.isEmpty())
 165         {
 166                 qFatal("Invalid path to MediaInfo binary. Tool not initialized properly.");
 167         }
 168 }
 169
 170 AnalyzeTask::~AnalyzeTask(void)
 171 {
 172         emit taskCompleted(m_taskId);
 173 }
 174
 175 ////////////////////////////////////////////////////////////
 176 // Thread Main
 177 ////////////////////////////////////////////////////////////
 178
 179 void AnalyzeTask::run()
 180 {
 181         try
 182         {
 183                 run_ex();
 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 AnalyzeTask::run_ex(void)
 198 {
 199         int fileType = fileTypeNormal;
 200         QString currentFile = QDir::fromNativeSeparators(m_inputFile);
 201         qDebug("Analyzing: %s", MUTILS_UTF8(currentFile));
 202
 203         AudioFileModel fileInfo(currentFile);
 204         analyzeFile(currentFile, fileInfo, &fileType);
 205
 206         if(MUTILS_BOOLIFY(m_abortFlag))
 207         {
 208                 qWarning("Operation cancelled by user!");
 209                 return;
 210         }
 211
 212         switch(fileType)
 213         {
 214         case fileTypeDenied:
 215                 qWarning("Cannot access file for reading, skipping!");
 216                 break;
 217         case fileTypeCDDA:
 218                 qWarning("Dummy CDDA file detected, skipping!");
 219                 break;
 220         default:
 221                 if(fileInfo.metaInfo().title().isEmpty() || fileInfo.techInfo().containerType().isEmpty() || fileInfo.techInfo().audioType().isEmpty())
 222                 {
 223                         fileType = fileTypeUnknown;
 224                         if(!QFileInfo(currentFile).suffix().compare("cue", Qt::CaseInsensitive))
 225                         {
 226                                 qWarning("Cue Sheet file detected, skipping!");
 227                                 fileType = fileTypeCueSheet;
 228                         }
 229                         else if(!QFileInfo(currentFile).suffix().compare("avs", Qt::CaseInsensitive))
 230                         {
 231                                 qDebug("Found a potential Avisynth script, investigating...");
 232                                 if(analyzeAvisynthFile(currentFile, fileInfo))
 233                                 {
 234                                         fileType = fileTypeNormal;
 235                                 }
 236                                 else
 237                                 {
 238                                         qDebug("Rejected Avisynth file: %s", MUTILS_UTF8(fileInfo.filePath()));
 239                                 }
 240                         }
 241                         else
 242                         {
 243                                 qDebug("Rejected file of unknown type: %s", MUTILS_UTF8(fileInfo.filePath()));
 244                         }
 245                 }
 246                 break;
 247         }
 248
 249         //Emit the file now!
 250         emit fileAnalyzed(m_taskId, fileType, fileInfo);
 251 }
 252
 253 ////////////////////////////////////////////////////////////
 254 // Privtae Functions
 255 ////////////////////////////////////////////////////////////
 256
 257 const AudioFileModel& AnalyzeTask::analyzeFile(const QString &filePath, AudioFileModel &audioFile, int *const type)
 258 {
 259         *type = fileTypeNormal;
 260         QFile readTest(filePath);
 261
 262         if (!readTest.open(QIODevice::ReadOnly))
 263         {
 264                 *type = fileTypeDenied;
 265                 return audioFile;
 266         }
 267
 268         if (checkFile_CDDA(readTest))
 269         {
 270                 *type = fileTypeCDDA;
 271                 return audioFile;
 272         }
 273
 274         readTest.close();
 275         return analyzeMediaFile(filePath, audioFile);
 276 }
 277
 278 const AudioFileModel& AnalyzeTask::analyzeMediaFile(const QString &filePath, AudioFileModel &audioFile)
 279 {
 280         //bool skipNext = false;
 281         QPair<quint32, quint32> id_val(UINT_MAX, UINT_MAX);
 282         quint32 coverType = UINT_MAX;
 283         QByteArray coverData;
 284
 285         QStringList params;
 286         params << L1S("--Language=raw") << L1S("--Output=XML") << L1S("--Full") << L1S("--Cover_Data=base64");
 287         params << QDir::toNativeSeparators(filePath);
 288
 289         QProcess process;
 290         MUtils::init_process(process, QFileInfo(m_mediaInfoBin).absolutePath());
 291         process.start(m_mediaInfoBin, params);
 292
 293         QByteArray data;
 294         data.reserve(16384);
 295
 296         if(!process.waitForStarted())
 297         {
 298                 qWarning("MediaInfo process failed to create!");
 299                 qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
 300                 process.kill();
 301                 process.waitForFinished(-1);
 302                 return audioFile;
 303         }
 304
 305         while(process.state() != QProcess::NotRunning)
 306         {
 307                 if(MUTILS_BOOLIFY(m_abortFlag))
 308                 {
 309                         process.kill();
 310                         qWarning("Process was aborted on user request!");
 311                         break;
 312                 }
 313
 314                 if(!process.waitForReadyRead())
 315                 {
 316                         if(process.state() == QProcess::Running)
 317                         {
 318                                 qWarning("MediaInfo time out. Killing the process now!");
 319                                 process.kill();
 320                                 process.waitForFinished(-1);
 321                                 break;
 322                         }
 323                 }
 324
 325                 forever
 326                 {
 327                         const QByteArray dataNext = process.readAll();
 328                         if (dataNext.isEmpty()) {
 329                                 break; /*no more input data*/
 330                         }
 331                         data += dataNext.trimmed();
 332                 }
 333         }
 334
 335         process.waitForFinished();
 336         if (process.state() != QProcess::NotRunning)
 337         {
 338                 process.kill();
 339                 process.waitForFinished(-1);
 340         }
 341
 342         while (!process.atEnd())
 343         {
 344                 const QByteArray dataNext = process.readAll();
 345                 if (dataNext.isEmpty()) {
 346                         break; /*no more input data*/
 347                 }
 348                 data += dataNext.trimmed();
 349         }
 350
 351 #if MUTILS_DEBUG
 352         qDebug("-----BEGIN MEDIAINFO-----\n%s\n-----END MEDIAINFO-----", data.constData());
 353 #endif //MUTILS_DEBUG
 354
 355         return parseMediaInfo(data, audioFile);
 356 }
 357
 358 const AudioFileModel& AnalyzeTask::parseMediaInfo(const QByteArray &data, AudioFileModel &audioFile)
 359 {
 360         QXmlStreamReader xmlStream(data);
 361         bool firstMediaFile = true;
 362
 363         if (findNextElement(QLatin1String("MediaInfo"), xmlStream))
 364         {
 365                 const QString versionXml = findAttribute(QLatin1String("Version"),  xmlStream.attributes());
 366                 if (versionXml.isEmpty() || (!checkVersionStr(versionXml, 2U, 0U)))
 367                 {
 368                         qWarning("Invalid file format version property: \"%s\"", MUTILS_UTF8(versionXml));
 369                         return audioFile;
 370                 }
 371                 if (findNextElement(QLatin1String("CreatingLibrary"), xmlStream))
 372                 {
 373                         const QString versionLib = findAttribute(QLatin1String("Version"), xmlStream.attributes());
 374                         const QString identifier = xmlStream.readElementText(QXmlStreamReader::SkipChildElements).simplified();
 375                         if (!STRICMP(identifier, QLatin1String("MediaInfoLib")))
 376                         {
 377                                 qWarning("Invalid library identiofier property: \"%s\"", MUTILS_UTF8(identifier));
 378                                 return audioFile;
 379                         }
 380                         if (!versionLib.isEmpty())
 381                         {
 382                                 if (m_mediaInfoVer != UINT_MAX)
 383                                 {
 384                                         const quint32 mediaInfoVer = (m_mediaInfoVer > 9999U) ? m_mediaInfoVer / 10U : m_mediaInfoVer;
 385                                         if (!checkVersionStr(versionLib, mediaInfoVer / 100U, mediaInfoVer % 100U))
 386                                         {
 387                                                 qWarning("Invalid library version property: \"%s\"", MUTILS_UTF8(versionLib));
 388                                                 return audioFile;
 389                                         }
 390                                 }
 391                         }
 392                         else
 393                         {
 394                                 qWarning("Library version property not found!");
 395                                 return audioFile;
 396                         }
 397                         while (findNextElement(QLatin1String("Media"), xmlStream))
 398                         {
 399                                 if (firstMediaFile || audioFile.techInfo().containerType().isEmpty() || audioFile.techInfo().audioType().isEmpty())
 400                                 {
 401                                         firstMediaFile = false;
 402                                         parseFileInfo(xmlStream, audioFile);
 403                                 }
 404                                 else
 405                                 {
 406                                         qWarning("Skipping non-primary file!");
 407                                         xmlStream.skipCurrentElement();
 408                                 }
 409                         }
 410                 }
 411         }
 412
 413         if (!(audioFile.techInfo().containerType().isEmpty() || audioFile.techInfo().audioType().isEmpty()))
 414         {
 415                 if (audioFile.metaInfo().title().isEmpty())
 416                 {
 417                         QString baseName = QFileInfo(audioFile.filePath()).fileName();
 418                         int index;
 419                         if ((index = baseName.lastIndexOf(".")) >= 0)
 420                         {
 421                                 baseName = baseName.left(index);
 422                         }
 423                         baseName = baseName.replace("_", " ").simplified();
 424                         if ((index = baseName.lastIndexOf(" - ")) >= 0)
 425                         {
 426                                 baseName = baseName.mid(index + 3).trimmed();
 427                         }
 428                         audioFile.metaInfo().setTitle(baseName);
 429                 }
 430                 if ((audioFile.techInfo().audioType().compare("PCM", Qt::CaseInsensitive) == 0) && (audioFile.techInfo().audioProfile().compare("Float", Qt::CaseInsensitive) == 0))
 431                 {
 432                         if (audioFile.techInfo().audioBitdepth() == 32) audioFile.techInfo().setAudioBitdepth(AudioFileModel::BITDEPTH_IEEE_FLOAT32);
 433                 }
 434         }
 435         else
 436         {
 437                 qWarning("Audio file format could *not* be recognized!");
 438         }
 439
 440         return audioFile;
 441 }
 442
 443 void AnalyzeTask::parseFileInfo(QXmlStreamReader &xmlStream, AudioFileModel &audioFile)
 444 {
 445         QSet<MI_trackType_t> tracksProcessed;
 446         MI_trackType_t trackType;
 447         while (findNextElement(QLatin1String("Track"), xmlStream))
 448         {
 449                 const QString typeString = findAttribute(QLatin1String("Type"), xmlStream.attributes());
 450                 if ((trackType = m_trackTypes.value(typeString.toLower(), MI_trackType_t(-1))) != MI_trackType_t(-1))
 451                 {
 452                         if (!tracksProcessed.contains(trackType))
 453                         {
 454                                 tracksProcessed << trackType;
 455                                 parseTrackInfo(xmlStream, trackType, audioFile);
 456                         }
 457                         else
 458                         {
 459                                 qWarning("Skipping non-primary '%s' track!", MUTILS_UTF8(typeString));
 460                                 xmlStream.skipCurrentElement();
 461                         }
 462                 }
 463                 else
 464                 {
 465                         qWarning("Skipping unsupported '%s' track!", MUTILS_UTF8(typeString));
 466                         xmlStream.skipCurrentElement();
 467                 }
 468         }
 469 }
 470
 471 void AnalyzeTask::parseTrackInfo(QXmlStreamReader &xmlStream, const MI_trackType_t trackType, AudioFileModel &audioFile)
 472 {
 473         QString coverMimeType;
 474         while (xmlStream.readNextStartElement())
 475         {
 476                 const MI_propertyId_t idx = m_mediaInfoIdx.value(qMakePair(trackType, xmlStream.name().toString().simplified().toLower()), MI_propertyId_t(-1));
 477                 if (idx != MI_propertyId_t(-1))
 478                 {
 479                         const QString encoding = findAttribute(QLatin1String("dt"), xmlStream.attributes());
 480                         const QString value = xmlStream.readElementText(QXmlStreamReader::SkipChildElements).simplified();
 481                         if (!value.isEmpty())
 482                         {
 483                                 parseProperty(encoding.isEmpty() ? value : decodeStr(value, encoding), idx, audioFile, coverMimeType);
 484                         }
 485                 }
 486                 else
 487                 {
 488                         xmlStream.skipCurrentElement();
 489                 }
 490         }
 491 }
 492
 493 void AnalyzeTask::parseProperty(const QString &value, const MI_propertyId_t propertyIdx, AudioFileModel &audioFile, QString &coverMimeType)
 494 {
 495 #if MUTILS_DEBUG
 496         qDebug("Property #%d = \"%s\"", propertyIdx, MUTILS_UTF8(value.left(24)));
 497 #endif
 498         switch (propertyIdx)
 499         {
 500                 case propertyId_container:         audioFile.techInfo().setContainerType(value);                                                                  return;
 501                 case propertyId_container_profile: audioFile.techInfo().setContainerProfile(value);                                                               return;
 502                 case propertyId_duration:          SET_OPTIONAL(double, parseFloat(value, _tmp), audioFile.techInfo().setDuration(qRound(_tmp)));                 return;
 503                 case propertyId_title:             audioFile.metaInfo().setTitle(value);                                                                          return;
 504                 case propertyId_artist:            audioFile.metaInfo().setArtist(value);                                                                         return;
 505                 case propertyId_album:             audioFile.metaInfo().setAlbum(value);                                                                          return;
 506                 case propertyId_genre:             audioFile.metaInfo().setGenre(value);                                                                          return;
 507                 case propertyId_released_date:     SET_OPTIONAL(quint32, parseYear(value, _tmp), audioFile.metaInfo().setYear(_tmp));                             return;
 508                 case propertyId_track_position:    SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.metaInfo().setPosition(_tmp));                     return;
 509                 case propertyId_comment:           audioFile.metaInfo().setComment(value);                                                                        return;
 510                 case propertyId_format:            audioFile.techInfo().setAudioType(value);                                                                      return;
 511                 case propertyId_format_version:    audioFile.techInfo().setAudioVersion(value);                                                                   return;
 512                 case propertyId_format_profile:    audioFile.techInfo().setAudioProfile(value);                                                                   return;
 513                 case propertyId_channel_s_:        SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioChannels(_tmp));                return;
 514                 case propertyId_samplingrate:      SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioSamplerate(_tmp));              return;
 515                 case propertyId_bitdepth:          SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioBitdepth(_tmp));                return;
 516                 case propertyId_bitrate:           SET_OPTIONAL(quint32, parseUnsigned(value, _tmp), audioFile.techInfo().setAudioBitrate(DIV_RND(_tmp, 1000U))); return;
 517                 case propertyId_bitrate_mode:      SET_OPTIONAL(quint32, parseRCMode(value, _tmp), audioFile.techInfo().setAudioBitrateMode(_tmp));               return;
 518                 case propertyId_encoded_library:   audioFile.techInfo().setAudioEncodeLib(cleanAsciiStr(value));                                                  return;
 519                 case propertyId_cover_mime:        coverMimeType = value;                                                                                         return;
 520                 case propertyId_cover_data:        retrieveCover(audioFile, coverMimeType, value);                                                                return;
 521                 default: MUTILS_THROW_FMT("Invalid property ID: %d", propertyIdx);
 522         }
 523 }
 524
 525 bool AnalyzeTask::checkFile_CDDA(QFile &file)
 526 {
 527         file.reset();
 528         QByteArray data = file.read(128);
 529
 530         int i = data.indexOf("RIFF");
 531         int j = data.indexOf("CDDA");
 532         int k = data.indexOf("fmt ");
 533
 534         return ((i >= 0) && (j >= 0) && (k >= 0) && (k > j) && (j > i));
 535 }
 536
 537 void AnalyzeTask::retrieveCover(AudioFileModel &audioFile, const QString &coverType, const QString &coverData)
 538 {
 539         const QByteArray content = QByteArray::fromBase64(coverData.toLatin1());
 540         const QString type = m_mimeTypes.value(coverType.toLower());
 541         qDebug("Retrieving cover! (mime=\"%s\", type=\"%s\", len=%d)", MUTILS_L1STR(coverType), MUTILS_L1STR(type), content.size());
 542         if(!QImage::fromData(content, type.isEmpty() ? NULL : MUTILS_L1STR(type.toUpper())).isNull())
 543         {
 544                 QFile coverFile(QString("%1/%2.%3").arg(MUtils::temp_folder(), MUtils::next_rand_str(), type.isEmpty() ? QLatin1String("jpg") : type));
 545                 if(coverFile.open(QIODevice::WriteOnly))
 546                 {
 547                         coverFile.write(content);
 548                         coverFile.close();
 549                         audioFile.metaInfo().setCover(coverFile.fileName(), true);
 550                 }
 551         }
 552         else
 553         {
 554                 qWarning("Image data seems to be invalid! [Header:%s]", content.left(32).toHex().constData());
 555         }
 556 }
 557
 558
 559 bool AnalyzeTask::analyzeAvisynthFile(const QString &filePath, AudioFileModel &info)
 560 {
 561         QProcess process;
 562         MUtils::init_process(process, QFileInfo(m_avs2wavBin).absolutePath());
 563
 564         process.start(m_avs2wavBin, QStringList() << QDir::toNativeSeparators(filePath) << "?");
 565
 566         if(!process.waitForStarted())
 567         {
 568                 qWarning("AVS2WAV process failed to create!");
 569                 qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
 570                 process.kill();
 571                 process.waitForFinished(-1);
 572                 return false;
 573         }
 574
 575         bool bInfoHeaderFound = false;
 576
 577         while(process.state() != QProcess::NotRunning)
 578         {
 579                 if(MUTILS_BOOLIFY(m_abortFlag))
 580                 {
 581                         process.kill();
 582                         qWarning("Process was aborted on user request!");
 583                         break;
 584                 }
 585
 586                 if(!process.waitForReadyRead())
 587                 {
 588                         if(process.state() == QProcess::Running)
 589                         {
 590                                 qWarning("AVS2WAV time out. Killing process and skipping file!");
 591                                 process.kill();
 592                                 process.waitForFinished(-1);
 593                                 return false;
 594                         }
 595                 }
 596
 597                 while(process.canReadLine())
 598                 {
 599                         const QString line = QString::fromUtf8(process.readLine().constData()).simplified();
 600                         if(!line.isEmpty())
 601                         {
 602                                 if(bInfoHeaderFound)
 603                                 {
 604                                         const qint32 index = line.indexOf(':');
 605                                         if (index > 0)
 606                                         {
 607                                                 const QString key = line.left(index).trimmed();
 608                                                 const QString val = line.mid(index + 1).trimmed();
 609                                                 if (!(key.isEmpty() || val.isEmpty()))
 610                                                 {
 611                                                         switch (m_avisynthIdx.value(key.toLower(), MI_propertyId_t(-1)))
 612                                                         {
 613                                                                 case propertyId_duration:     SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setDuration(_tmp));        break;
 614                                                                 case propertyId_samplingrate: SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioSamplerate(_tmp)); break;
 615                                                                 case propertyId_channel_s_:   SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioChannels(_tmp));   break;
 616                                                                 case propertyId_bitdepth:     SET_OPTIONAL(quint32, parseUnsigned(val, _tmp), info.techInfo().setAudioBitdepth(_tmp));   break;
 617                                                         }
 618                                                 }
 619                                         }
 620                                 }
 621                                 else
 622                                 {
 623                                         if(line.contains("[Audio Info]", Qt::CaseInsensitive))
 624                                         {
 625                                                 info.techInfo().setAudioType("Avisynth");
 626                                                 info.techInfo().setContainerType("Avisynth");
 627                                                 bInfoHeaderFound = true;
 628                                         }
 629                                 }
 630                         }
 631                 }
 632         }
 633
 634         process.waitForFinished();
 635         if(process.state() != QProcess::NotRunning)
 636         {
 637                 process.kill();
 638                 process.waitForFinished(-1);
 639         }
 640
 641         //Check exit code
 642         switch(process.exitCode())
 643         {
 644         case 0:
 645                 qDebug("Avisynth script was analyzed successfully.");
 646                 return true;
 647                 break;
 648         case -5:
 649                 qWarning("It appears that Avisynth is not installed on the system!");
 650                 return false;
 651                 break;
 652         default:
 653                 qWarning("Failed to open the Avisynth script, bad AVS file?");
 654                 return false;
 655                 break;
 656         }
 657 }
 658
 659 // ---------------------------------------------------------
 660 // Utility Functions
 661 // ---------------------------------------------------------
 662
 663 QString AnalyzeTask::decodeStr(const QString &str, const QString &encoding)
 664 {
 665         if (STRICMP(encoding, QLatin1String("binary.base64")))
 666         {
 667                 const QString decoded = QString::fromUtf8(QByteArray::fromBase64(str.toLatin1()));
 668                 return decoded;
 669         }
 670         return QString();
 671 }
 672
 673 bool AnalyzeTask::parseUnsigned(const QString &str, quint32 &value)
 674 {
 675         bool okay = false;
 676         value = str.toUInt(&okay);
 677         return okay;
 678 }
 679 bool AnalyzeTask::parseFloat(const QString &str, double &value)
 680 {
 681         bool okay = false;
 682         value = QLocale::c().toDouble(str, &okay);
 683         return okay;
 684 }
 685
 686 bool AnalyzeTask::parseYear(const QString &str, quint32 &value)
 687 {
 688         if (str.startsWith(QLatin1String("UTC"), Qt::CaseInsensitive))
 689         {
 690                 const QDate date = QDate::fromString(str.mid(3).trimmed().left(10), QLatin1String("yyyy-MM-dd"));
 691                 if (date.isValid())
 692                 {
 693                         value = date.year();
 694                         return true;
 695                 }
 696                 return false;
 697         }
 698         else
 699         {
 700                 return parseUnsigned(str, value);
 701         }
 702 }
 703
 704 bool AnalyzeTask::parseRCMode(const QString &str, quint32 &value)
 705 {
 706         if (STRICMP(str, QLatin1String("CBR")))
 707         {
 708                 value = AudioFileModel::BitrateModeConstant;
 709                 return true;
 710         }
 711         if (STRICMP(str, QLatin1String("VBR")))
 712         {
 713                 value = AudioFileModel::BitrateModeVariable;
 714                 return true;
 715         }
 716         return false;
 717 }
 718
 719 QString AnalyzeTask::cleanAsciiStr(const QString &str)
 720 {
 721         QByteArray ascii = str.toLatin1();
 722         for (QByteArray::Iterator iter = ascii.begin(); iter != ascii.end(); ++iter)
 723         {
 724                 if ((*iter < 0x20) || (*iter >= 0x7F)) *iter = 0x3F;
 725         }
 726         return QString::fromLatin1(ascii).remove(QLatin1Char('?')).simplified();
 727 }
 728
 729 bool AnalyzeTask::findNextElement(const QString &name, QXmlStreamReader &xmlStream)
 730 {
 731         while (xmlStream.readNextStartElement())
 732         {
 733                 if (STRICMP(xmlStream.name(), name))
 734                 {
 735                         return true;
 736                 }
 737                 xmlStream.skipCurrentElement();
 738         }
 739         return false;
 740 }
 741
 742 QString AnalyzeTask::findAttribute(const QString &name, const QXmlStreamAttributes &xmlAttributes)
 743 {
 744         for (QXmlStreamAttributes::ConstIterator iter = xmlAttributes.constBegin(); iter != xmlAttributes.constEnd(); ++iter)
 745         {
 746                 if (STRICMP(iter->name(), name))
 747                 {
 748                         const QString value = iter->value().toString().simplified();
 749                         if (!value.isEmpty())
 750                         {
 751                                 return value; /*found*/
 752                         }
 753                 }
 754         }
 755         return QString();
 756 }
 757
 758 bool AnalyzeTask::checkVersionStr(const QString &str, const quint32 expectedMajor, const quint32 expectedMinor)
 759 {
 760         QRegExp version("^(\\d+)\\.(\\d+)($|\\.)");
 761         if (version.indexIn(str) >= 0)
 762         {
 763                 quint32 actual[2];
 764                 if (MUtils::regexp_parse_uint32(version, actual, 2))
 765                 {
 766                         if ((actual[0] == expectedMajor) && (actual[1] >= expectedMinor))
 767                         {
 768                                 return true;
 769                         }
 770                 }
 771         }
 772         return false;
 773 }
 774
 775 ////////////////////////////////////////////////////////////
 776 // Public Functions
 777 ////////////////////////////////////////////////////////////
 778
 779 /*NONE*/
 780
 781 ////////////////////////////////////////////////////////////
 782 // EVENTS
 783 ////////////////////////////////////////////////////////////
 784
 785 /*NONE*/