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