src/Filter_ToneAdjust.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 "Filter_ToneAdjust.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QFileInfo>
  30
  31 ToneAdjustFilter::ToneAdjustFilter(int bass, int treble)
  32 :
  33         m_binary(lamexp_lookup_tool("sox.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing SoX filter. Tool 'sox.exe' is not registred!";
  38         }
  39
  40         m_bass = qMax(-2000, qMin(2000, bass));
  41         m_treble = qMax(-2000, qMin(2000, treble));
  42 }
  43
  44 ToneAdjustFilter::~ToneAdjustFilter(void)
  45 {
  46 }
  47
  48 bool ToneAdjustFilter::apply(const QString &sourceFile, const QString &outputFile, AudioFileModel *formatInfo, volatile bool *abortFlag)
  49 {
  50         QProcess process;
  51         QStringList args;
  52
  53         process.setWorkingDirectory(QFileInfo(outputFile).canonicalPath());
  54
  55         args << "-V3" << "-S";
  56         args << "--guard" << "--temp" << ".";
  57         args << QDir::toNativeSeparators(sourceFile);
  58         args << QDir::toNativeSeparators(outputFile);
  59
  60         if(m_bass != 0)
  61         {
  62                 args << "bass" << QString().sprintf("%s%.2f", ((m_bass < 0) ? "-" : "+"), static_cast<double>(abs(m_bass)) / 100.0);
  63         }
  64         if(m_treble != 0)
  65         {
  66                 args << "treble" << QString().sprintf("%s%.2f", ((m_treble < 0) ? "-" : "+"), static_cast<double>(abs(m_treble)) / 100.0);
  67         }
  68
  69         if(!startProcess(process, m_binary, args))
  70         {
  71                 return false;
  72         }
  73
  74         bool bTimeout = false;
  75         bool bAborted = false;
  76
  77         QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
  78
  79         while(process.state() != QProcess::NotRunning)
  80         {
  81                 if(*abortFlag)
  82                 {
  83                         process.kill();
  84                         bAborted = true;
  85                         emit messageLogged("\nABORTED BY USER !!!");
  86                         break;
  87                 }
  88                 process.waitForReadyRead(m_processTimeoutInterval);
  89                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  90                 {
  91                         process.kill();
  92                         qWarning("SoX process timed out <-- killing!");
  93                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  94                         bTimeout = true;
  95                         break;
  96                 }
  97                 while(process.bytesAvailable() > 0)
  98                 {
  99                         QByteArray line = process.readLine();
 100                         QString text = QString::fromUtf8(line.constData()).simplified();
 101                         if(regExp.lastIndexIn(text) >= 0)
 102                         {
 103                                 bool ok = false;
 104                                 int progress = regExp.cap(1).toInt(&ok);
 105                                 if(ok) emit statusUpdated(progress);
 106                         }
 107                         else if(!text.isEmpty())
 108                         {
 109                                 emit messageLogged(text);
 110                         }
 111                 }
 112         }
 113
 114         process.waitForFinished();
 115         if(process.state() != QProcess::NotRunning)
 116         {
 117                 process.kill();
 118                 process.waitForFinished(-1);
 119         }
 120
 121         emit statusUpdated(100);
 122         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 123
 124         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 125         {
 126                 return false;
 127         }
 128
 129         return true;
 130 }