src/Filter_ToneAdjust.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 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 "Filter_ToneAdjust.h"
  24
  25 //Internal
  26 #include "Global.h"
  27
  28 //MUtils
  29 #include <MUtils/Exception.h>
  30
  31 //Qt
  32 #include <QDir>
  33 #include <QProcess>
  34 #include <QRegExp>
  35 #include <QFileInfo>
  36
  37 ToneAdjustFilter::ToneAdjustFilter(int bass, int treble)
  38 :
  39         m_binary(lamexp_tool_lookup("sox.exe"))
  40 {
  41         if(m_binary.isEmpty())
  42         {
  43                 MUTILS_THROW("Error initializing SoX filter. Tool 'sox.exe' is not registred!");
  44         }
  45
  46         m_bass = qMax(-2000, qMin(2000, bass));
  47         m_treble = qMax(-2000, qMin(2000, treble));
  48 }
  49
  50 ToneAdjustFilter::~ToneAdjustFilter(void)
  51 {
  52 }
  53
  54 bool ToneAdjustFilter::apply(const QString &sourceFile, const QString &outputFile, AudioFileModel_TechInfo *formatInfo, volatile bool *abortFlag)
  55 {
  56         QProcess process;
  57         QStringList args;
  58
  59         process.setWorkingDirectory(QFileInfo(outputFile).canonicalPath());
  60
  61         args << "-V3" << "-S";
  62         args << "--guard" << "--temp" << ".";
  63         args << QDir::toNativeSeparators(sourceFile);
  64         args << QDir::toNativeSeparators(outputFile);
  65
  66         if(m_bass != 0)
  67         {
  68                 args << "bass" << QString().sprintf("%s%.2f", ((m_bass < 0) ? "-" : "+"), static_cast<double>(abs(m_bass)) / 100.0);
  69         }
  70         if(m_treble != 0)
  71         {
  72                 args << "treble" << QString().sprintf("%s%.2f", ((m_treble < 0) ? "-" : "+"), static_cast<double>(abs(m_treble)) / 100.0);
  73         }
  74
  75         if(!startProcess(process, m_binary, args))
  76         {
  77                 return false;
  78         }
  79
  80         bool bTimeout = false;
  81         bool bAborted = false;
  82
  83         QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
  84
  85         while(process.state() != QProcess::NotRunning)
  86         {
  87                 if(*abortFlag)
  88                 {
  89                         process.kill();
  90                         bAborted = true;
  91                         emit messageLogged("\nABORTED BY USER !!!");
  92                         break;
  93                 }
  94                 process.waitForReadyRead(m_processTimeoutInterval);
  95                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  96                 {
  97                         process.kill();
  98                         qWarning("SoX process timed out <-- killing!");
  99                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 100                         bTimeout = true;
 101                         break;
 102                 }
 103                 while(process.bytesAvailable() > 0)
 104                 {
 105                         QByteArray line = process.readLine();
 106                         QString text = QString::fromUtf8(line.constData()).simplified();
 107                         if(regExp.lastIndexIn(text) >= 0)
 108                         {
 109                                 bool ok = false;
 110                                 int progress = regExp.cap(1).toInt(&ok);
 111                                 if(ok) emit statusUpdated(progress);
 112                         }
 113                         else if(!text.isEmpty())
 114                         {
 115                                 emit messageLogged(text);
 116                         }
 117                 }
 118         }
 119
 120         process.waitForFinished();
 121         if(process.state() != QProcess::NotRunning)
 122         {
 123                 process.kill();
 124                 process.waitForFinished(-1);
 125         }
 126
 127         emit statusUpdated(100);
 128         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 129
 130         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 131         {
 132                 return false;
 133         }
 134
 135         return true;
 136 }