src/Filter_ToneAdjust.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 "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_tools_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 AbstractFilter::FilterResult ToneAdjustFilter::apply(const QString &sourceFile, const QString &outputFile, AudioFileModel_TechInfo *const formatInfo, QAtomicInt &abortFlag)
  55 {
  56         QProcess process;
  57         QStringList args;
  58
  59         args << "-V3" << "-S";
  60         args << "--guard" << "--temp" << ".";
  61         args << QDir::toNativeSeparators(sourceFile);
  62         args << QDir::toNativeSeparators(outputFile);
  63
  64         if(m_bass != 0)
  65         {
  66                 args << "bass" << QString().sprintf("%s%.2f", ((m_bass < 0) ? "-" : "+"), static_cast<double>(abs(m_bass)) / 100.0);
  67         }
  68         if(m_treble != 0)
  69         {
  70                 args << "treble" << QString().sprintf("%s%.2f", ((m_treble < 0) ? "-" : "+"), static_cast<double>(abs(m_treble)) / 100.0);
  71         }
  72
  73         if(!startProcess(process, m_binary, args, QFileInfo(outputFile).canonicalPath()))
  74         {
  75                 return AbstractFilter::FILTER_FAILURE;
  76         }
  77
  78         int prevProgress = -1;
  79         QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
  80
  81         const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, &regExp](const QString &text)
  82         {
  83                 if (regExp.lastIndexIn(text) >= 0)
  84                 {
  85                         qint32 newProgress;
  86                         if (MUtils::regexp_parse_int32(regExp, newProgress))
  87                         {
  88                                 if (newProgress > prevProgress)
  89                                 {
  90                                         emit statusUpdated(newProgress);
  91                                         prevProgress = NEXT_PROGRESS(newProgress);
  92                                 }
  93                         }
  94                         return true;
  95                 }
  96                 return false;
  97         });
  98
  99         if (result != RESULT_SUCCESS)
 100         {
 101                 return AbstractFilter::FILTER_FAILURE;
 102         }
 103
 104         return AbstractFilter::FILTER_SUCCESS;
 105 }