src/Thread_Process.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 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_Process.h"
  23
  24 #include "Global.h"
  25 #include "Model_AudioFile.h"
  26 #include "Model_Progress.h"
  27 #include "Encoder_Abstract.h"
  28 #include "Decoder_Abstract.h"
  29 #include "Filter_Abstract.h"
  30 #include "Filter_Downmix.h"
  31 #include "Registry_Decoder.h"
  32 #include "Model_Settings.h"
  33
  34 #include <QUuid>
  35 #include <QFileInfo>
  36 #include <QDir>
  37 #include <QMutex>
  38 #include <QMutexLocker>
  39
  40 #include <limits.h>
  41 #include <time.h>
  42
  43 QMutex *ProcessThread::m_mutex_genFileName = NULL;
  44
  45 ////////////////////////////////////////////////////////////
  46 // Constructor
  47 ////////////////////////////////////////////////////////////
  48
  49 ProcessThread::ProcessThread(const AudioFileModel &audioFile, const QString &outputDirectory, AbstractEncoder *encoder, const bool prependRelativeSourcePath)
  50 :
  51         m_audioFile(audioFile),
  52         m_outputDirectory(outputDirectory),
  53         m_encoder(encoder),
  54         m_jobId(QUuid::createUuid()),
  55         m_prependRelativeSourcePath(prependRelativeSourcePath),
  56         m_aborted(false)
  57 {
  58         if(m_mutex_genFileName)
  59         {
  60                 m_mutex_genFileName = new QMutex;
  61         }
  62
  63         connect(m_encoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
  64         connect(m_encoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
  65
  66         m_currentStep = UnknownStep;
  67 }
  68
  69 ProcessThread::~ProcessThread(void)
  70 {
  71         while(!m_tempFiles.isEmpty())
  72         {
  73                 lamexp_remove_file(m_tempFiles.takeFirst());
  74         }
  75
  76         LAMEXP_DELETE(m_encoder);
  77 }
  78
  79 void ProcessThread::run()
  80 {
  81         try
  82         {
  83                 processFile();
  84         }
  85         catch(...)
  86         {
  87                 fflush(stdout);
  88                 fflush(stderr);
  89                 fprintf(stderr, "\nGURU MEDITATION !!!\n");
  90                 FatalAppExit(0, L"Unhandeled exception error, application will exit!");
  91                 TerminateProcess(GetCurrentProcess(), -1);
  92         }
  93 }
  94
  95 void ProcessThread::processFile()
  96 {
  97         m_aborted = false;
  98         bool bSuccess = true;
  99
 100         qDebug("Process thread %s has started.", m_jobId.toString().toLatin1().constData());
 101         emit processStateInitialized(m_jobId, QFileInfo(m_audioFile.filePath()).fileName(), tr("Starting..."), ProgressModel::JobRunning);
 102
 103         //Generate output file name
 104         QString outFileName = generateOutFileName();
 105         if(outFileName.isEmpty())
 106         {
 107                 emit processStateChanged(m_jobId, tr("Not found!"), ProgressModel::JobFailed);
 108                 emit processStateFinished(m_jobId, outFileName, false);
 109                 return;
 110         }
 111
 112         QList<AbstractFilter*> filters;
 113
 114         //Do we need Stereo downmix?
 115         if(m_audioFile.formatAudioChannels() > 2 && m_encoder->requiresDownmix())
 116         {
 117                 filters.prepend(new DownmixFilter());
 118         }
 119
 120         QString sourceFile = m_audioFile.filePath();
 121
 122         //Decode source file
 123         if(!filters.isEmpty() || !m_encoder->isFormatSupported(m_audioFile.formatContainerType(), m_audioFile.formatContainerProfile(), m_audioFile.formatAudioType(), m_audioFile.formatAudioProfile(), m_audioFile.formatAudioVersion()))
 124         {
 125                 m_currentStep = DecodingStep;
 126                 AbstractDecoder *decoder = DecoderRegistry::lookup(m_audioFile.formatContainerType(), m_audioFile.formatContainerProfile(), m_audioFile.formatAudioType(), m_audioFile.formatAudioProfile(), m_audioFile.formatAudioVersion());
 127
 128                 if(decoder)
 129                 {
 130                         QString tempFile = generateTempFileName();
 131
 132                         connect(decoder, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 133                         connect(decoder, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 134
 135                         bSuccess = decoder->decode(sourceFile, tempFile, &m_aborted);
 136
 137                         if(bSuccess)
 138                         {
 139                                 sourceFile = tempFile;
 140                                 handleMessage("\n-------------------------------\n");
 141                         }
 142                 }
 143                 else
 144                 {
 145                         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.formatContainerInfo(), tr("Audio Format:"), m_audioFile.formatAudioCompressInfo()));
 146                         emit processStateChanged(m_jobId, tr("Unsupported!"), ProgressModel::JobFailed);
 147                         emit processStateFinished(m_jobId, outFileName, false);
 148                         return;
 149                 }
 150         }
 151
 152         //Apply all filters
 153         while(!filters.isEmpty())
 154         {
 155                 QString tempFile = generateTempFileName();
 156                 AbstractFilter *poFilter = filters.takeFirst();
 157
 158                 if(bSuccess)
 159                 {
 160                         connect(poFilter, SIGNAL(statusUpdated(int)), this, SLOT(handleUpdate(int)), Qt::DirectConnection);
 161                         connect(poFilter, SIGNAL(messageLogged(QString)), this, SLOT(handleMessage(QString)), Qt::DirectConnection);
 162
 163                         m_currentStep = FilteringStep;
 164                         bSuccess = poFilter->apply(sourceFile, tempFile, &m_aborted);
 165
 166                         if(bSuccess)
 167                         {
 168                                 sourceFile = tempFile;
 169                                 handleMessage("\n-------------------------------\n");
 170                         }
 171                 }
 172
 173                 delete poFilter;
 174         }
 175
 176         //Encode audio file
 177         if(bSuccess)
 178         {
 179                 m_currentStep = EncodingStep;
 180                 bSuccess = m_encoder->encode(sourceFile, m_audioFile, outFileName, &m_aborted);
 181         }
 182
 183         //Make sure output file exists
 184         if(bSuccess)
 185         {
 186                 QFileInfo fileInfo(outFileName);
 187                 bSuccess = fileInfo.exists() && fileInfo.isFile() && (fileInfo.size() > 0);
 188         }
 189
 190         //Report result
 191         emit processStateChanged(m_jobId, (bSuccess ? tr("Done.") : (m_aborted ? tr("Aborted!") : tr("Failed!"))), (bSuccess ? ProgressModel::JobComplete : ProgressModel::JobFailed));
 192         emit processStateFinished(m_jobId, outFileName, bSuccess);
 193
 194         qDebug("Process thread is done.");
 195 }
 196
 197 ////////////////////////////////////////////////////////////
 198 // SLOTS
 199 ////////////////////////////////////////////////////////////
 200
 201 void ProcessThread::handleUpdate(int progress)
 202 {
 203         switch(m_currentStep)
 204         {
 205         case EncodingStep:
 206                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Encoding"), QString::number(progress)), ProgressModel::JobRunning);
 207                 break;
 208         case FilteringStep:
 209                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Filtering"), QString::number(progress)), ProgressModel::JobRunning);
 210                 break;
 211         case DecodingStep:
 212                 emit processStateChanged(m_jobId, QString("%1 (%2%)").arg(tr("Decoding"), QString::number(progress)), ProgressModel::JobRunning);
 213                 break;
 214         }
 215 }
 216
 217 void ProcessThread::handleMessage(const QString &line)
 218 {
 219         emit processMessageLogged(m_jobId, line);
 220 }
 221
 222 ////////////////////////////////////////////////////////////
 223 // PRIVAE FUNCTIONS
 224 ////////////////////////////////////////////////////////////
 225
 226 QString ProcessThread::generateOutFileName(void)
 227 {
 228         QMutexLocker lock(m_mutex_genFileName);
 229
 230         int n = 1;
 231
 232         QFileInfo sourceFile(m_audioFile.filePath());
 233         if(!sourceFile.exists() || !sourceFile.isFile())
 234         {
 235                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be found:"), sourceFile.absoluteFilePath()));
 236                 return QString();
 237         }
 238
 239         QFile readTest(sourceFile.canonicalFilePath());
 240         if(!readTest.open(QIODevice::ReadOnly))
 241         {
 242                 handleMessage(QString("%1\n%2").arg(tr("The source audio file could not be opened for reading:"), readTest.fileName()));
 243                 return QString();
 244         }
 245         else
 246         {
 247                 readTest.close();
 248         }
 249
 250         QString baseName = sourceFile.completeBaseName();
 251         QDir targetDir(m_outputDirectory.isEmpty() ? sourceFile.canonicalPath() : m_outputDirectory);
 252
 253         if(m_prependRelativeSourcePath && !m_outputDirectory.isEmpty())
 254         {
 255                 QDir rootDir = sourceFile.dir();
 256                 while(!rootDir.isRoot())
 257                 {
 258                         if(!rootDir.cdUp()) break;
 259                 }
 260                 targetDir.setPath(QString("%1/%2").arg(targetDir.absolutePath(), QFileInfo(rootDir.relativeFilePath(sourceFile.canonicalFilePath())).path()));
 261         }
 262
 263         if(!targetDir.exists())
 264         {
 265                 targetDir.mkpath(".");
 266                 if(!targetDir.exists())
 267                 {
 268                         handleMessage(QString("%1\n%2").arg(tr("The target output directory doesn't exist and could NOT be created:"), targetDir.absolutePath()));
 269                         return QString();
 270                 }
 271         }
 272
 273         QFile writeTest(QString("%1/.%2").arg(targetDir.canonicalPath(), lamexp_rand_str()));
 274         if(!writeTest.open(QIODevice::ReadWrite))
 275         {
 276                 handleMessage(QString("%1\n%2").arg(tr("The target output directory is NOT writable:"), targetDir.absolutePath()));
 277                 return QString();
 278         }
 279         else
 280         {
 281                 writeTest.close();
 282                 writeTest.remove();
 283         }
 284
 285         QString outFileName = QString("%1/%2.%3").arg(targetDir.canonicalPath(), baseName, m_encoder->extension());
 286         while(QFileInfo(outFileName).exists())
 287         {
 288                 outFileName = QString("%1/%2 (%3).%4").arg(targetDir.canonicalPath(), baseName, QString::number(++n), m_encoder->extension());
 289         }
 290
 291         QFile placeholder(outFileName);
 292         if(placeholder.open(QIODevice::WriteOnly))
 293         {
 294                 placeholder.close();
 295         }
 296
 297         return outFileName;
 298 }
 299
 300 QString ProcessThread::generateTempFileName(void)
 301 {
 302         QMutexLocker lock(m_mutex_genFileName);
 303         QString tempFileName = QString("%1/%2.wav").arg(lamexp_temp_folder(), lamexp_rand_str());
 304
 305         while(QFileInfo(tempFileName).exists())
 306         {
 307                 tempFileName = QString("%1/%2.wav").arg(lamexp_temp_folder(), lamexp_rand_str());
 308         }
 309
 310         QFile file(tempFileName);
 311         if(file.open(QFile::ReadWrite))
 312         {
 313                 file.close();
 314         }
 315
 316         m_tempFiles << tempFileName;
 317         return tempFileName;
 318 }
 319
 320 ////////////////////////////////////////////////////////////
 321 // EVENTS
 322 ////////////////////////////////////////////////////////////
 323
 324 /*NONE*/