1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2017 LoRd_MuldeR <MuldeR2@GMX.de>
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.
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.
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.
20 // http://www.gnu.org/licenses/gpl-2.0.txt
21 ///////////////////////////////////////////////////////////////////////////////
23 #include "Filter_Normalize.h"
29 #include <MUtils/Global.h>
30 #include <MUtils/Exception.h>
37 static double dbToLinear(const double &value
)
39 return pow(10.0, value
/ 20.0);
42 NormalizeFilter::NormalizeFilter(const int &peakVolume
, const bool &dnyAudNorm
, const bool &channelsCoupled
, const int &filterSize
)
44 m_binary(lamexp_tools_lookup("sox.exe")),
45 m_useDynAudNorm(dnyAudNorm
),
46 m_peakVolume(qMin(-50, qMax(-3200, peakVolume
))),
47 m_channelsCoupled(channelsCoupled
),
48 m_filterLength(qBound(3, filterSize
+ (1 - (filterSize
% 2)), 301))
50 if(m_binary
.isEmpty())
52 MUTILS_THROW("Error initializing SoX filter. Tool 'sox.exe' is not registred!");
56 NormalizeFilter::~NormalizeFilter(void)
60 AbstractFilter::FilterResult
NormalizeFilter::apply(const QString
&sourceFile
, const QString
&outputFile
, AudioFileModel_TechInfo
*const formatInfo
, QAtomicInt
&abortFlag
)
65 args
<< "-V3" << "-S";
66 args
<< "--temp" << ".";
67 args
<< QDir::toNativeSeparators(sourceFile
);
68 args
<< QDir::toNativeSeparators(outputFile
);
73 args
<< (m_channelsCoupled
? "-n" : "-nb");
74 args
<< QString().sprintf("%.2f", static_cast<double>(m_peakVolume
) / 100.0);
79 args
<< "-p" << QString().sprintf("%.2f", qBound(0.1, dbToLinear(static_cast<double>(m_peakVolume
) / 100.0), 1.0));
80 args
<< "-g" << QString().sprintf("%d", m_filterLength
);
81 if(!m_channelsCoupled
)
87 if(!startProcess(process
, m_binary
, args
, QFileInfo(outputFile
).canonicalPath()))
89 return AbstractFilter::FILTER_FAILURE
;
92 int prevProgress
= -1;
93 QRegExp
regExp("In:(\\d+)(\\.\\d+)*%");
95 const result_t result
= awaitProcess(process
, abortFlag
, [this, &prevProgress
, ®Exp
](const QString
&text
)
97 if (regExp
.lastIndexIn(text
) >= 0)
100 if (MUtils::regexp_parse_int32(regExp
, newProgress
))
102 if (newProgress
> prevProgress
)
104 emit
statusUpdated(newProgress
);
105 prevProgress
= NEXT_PROGRESS(newProgress
);
113 if (result
!= RESULT_SUCCESS
)
115 return AbstractFilter::FILTER_FAILURE
;
118 return AbstractFilter::FILTER_SUCCESS
;