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///////////////////////////////////////////////////////////////////////////////
// LameXP - Audio Encoder Front-End
// Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version, but always including the *additional*
// restrictions defined in the "License.txt" file.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////
#include "Filter_Normalize.h"
//Internal
#include "Global.h"
//MUtils
#include <MUtils/Global.h>
#include <MUtils/Exception.h>
//Qt
#include <QDir>
#include <QProcess>
#include <QRegExp>
static double dbToLinear(const double &value)
{
return pow(10.0, value / 20.0);
}
NormalizeFilter::NormalizeFilter(const int &peakVolume, const bool &dnyAudNorm, const bool &channelsCoupled, const int &filterSize)
:
m_binary(lamexp_tools_lookup("sox.exe")),
m_useDynAudNorm(dnyAudNorm),
m_peakVolume(qMin(-50, qMax(-3200, peakVolume))),
m_channelsCoupled(channelsCoupled),
m_filterLength(qBound(3, filterSize + (1 - (filterSize % 2)), 301))
{
if(m_binary.isEmpty())
{
MUTILS_THROW("Error initializing SoX filter. Tool 'sox.exe' is not registred!");
}
}
NormalizeFilter::~NormalizeFilter(void)
{
}
bool NormalizeFilter::apply(const QString &sourceFile, const QString &outputFile, AudioFileModel_TechInfo *formatInfo, volatile bool *abortFlag)
{
QProcess process;
QStringList args;
args << "-V3" << "-S";
args << "--temp" << ".";
args << QDir::toNativeSeparators(sourceFile);
args << QDir::toNativeSeparators(outputFile);
if(!m_useDynAudNorm)
{
args << "gain";
args << (m_channelsCoupled ? "-n" : "-nb");
args << QString().sprintf("%.2f", static_cast<double>(m_peakVolume) / 100.0);
}
else
{
args << "dynaudnorm";
args << "-p" << QString().sprintf("%.2f", qBound(0.1, dbToLinear(static_cast<double>(m_peakVolume) / 100.0), 1.0));
args << "-g" << QString().sprintf("%d", m_filterLength);
if(!m_channelsCoupled)
{
args << "-n";
}
}
if(!startProcess(process, m_binary, args, QFileInfo(outputFile).canonicalPath()))
{
return false;
}
bool bTimeout = false;
bool bAborted = false;
QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
while(process.state() != QProcess::NotRunning)
{
if(*abortFlag)
{
process.kill();
bAborted = true;
emit messageLogged("\nABORTED BY USER !!!");
break;
}
process.waitForReadyRead(m_processTimeoutInterval);
if(!process.bytesAvailable() && process.state() == QProcess::Running)
{
process.kill();
qWarning("SoX process timed out <-- killing!");
emit messageLogged("\nPROCESS TIMEOUT !!!");
bTimeout = true;
break;
}
while(process.bytesAvailable() > 0)
{
QByteArray line = process.readLine();
QString text = QString::fromUtf8(line.constData()).simplified();
if(regExp.lastIndexIn(text) >= 0)
{
bool ok = false;
int progress = regExp.cap(1).toInt(&ok);
if(ok) emit statusUpdated(progress);
}
else if(!text.isEmpty())
{
emit messageLogged(text);
}
}
}
process.waitForFinished();
if(process.state() != QProcess::NotRunning)
{
process.kill();
process.waitForFinished(-1);
}
emit statusUpdated(100);
emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
{
return false;
}
return true;
}
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