Skip to content
Fetching contributors…
Cannot retrieve contributors at this time
166 lines (146 sloc) 4.64 KB
///////////////////////////////////////////////////////////////////////////////
// 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_Downmix.h"
//Internal
#include "Global.h"
#include "Tool_WaveProperties.h"
#include "Model_AudioFile.h"
//MUtils
#include <MUtils/Exception.h>
//Qt
#include <QDir>
#include <QProcess>
#include <QRegExp>
DownmixFilter::DownmixFilter(void)
:
m_binary(lamexp_tools_lookup("sox.exe"))
{
if(m_binary.isEmpty())
{
MUTILS_THROW("Error initializing SoX filter. Tool 'sox.exe' is not registred!");
}
}
DownmixFilter::~DownmixFilter(void)
{
}
bool DownmixFilter::apply(const QString &sourceFile, const QString &outputFile, AudioFileModel_TechInfo *formatInfo, volatile bool *abortFlag)
{
unsigned int channels = formatInfo->audioChannels(); //detectChannels(sourceFile, abortFlag);
emit messageLogged(QString().sprintf("--> Number of channels is: %d\n", channels));
if(channels == 2)
{
messageLogged("Skipping downmix!");
qDebug("Dowmmix not required for Stereo input, skipping!");
return true;
}
QProcess process;
QStringList args;
args << "-V3" << "-S";
args << "--guard" << "--temp" << ".";
args << QDir::toNativeSeparators(sourceFile);
args << QDir::toNativeSeparators(outputFile);
switch(channels)
{
case 2: //Unknown
qWarning("Downmixer: Nothing to do!");
case 3: //3.0 (L/R/C)
args << "remix" << "1v0.66,3v0.34" << "2v0.66,3v0.34";
break;
case 4: //3.1 (L/R/C/LFE)
args << "remix" << "1v0.5,3v0.25,4v0.25" << "2v0.5,3v0.25,4v0.25";
break;
case 5: //5.0 (L/R/C/BL/BR)
args << "remix" << "1v0.5,3v0.25,4v0.25" << "2v0.5,3v0.25,5v0.25";
break;
case 6: //5.1 (L/R/C/LFE/BL/BR)
args << "remix" << "1v0.4,3v0.2,4v0.2,5v0.2" << "2v0.4,3v0.2,4v0.2,6v0.2";
break;
case 7: //7.0 (L/R/C/BL/BR/SL/SR)
args << "remix" << "1v0.4,3v0.2,4v0.2,6v0.2" << "2v0.4,3v0.2,5v0.2,7v0.2";
break;
case 8: //7.1 (L/R/C/LFE/BL/BR/SL/SR)
args << "remix" << "1v0.36,3v0.16,4v0.16,5v0.16,7v0.16" << "2v0.36,3v0.16,4v0.16,6v0.16,8v0.16";
break;
case 9: //8.1 (L/R/C/LFE/BL/BR/SL/SR/BC)
args << "remix" << "1v0.308,3v0.154,4v0.154,5v0.154,7v0.154,9v0.076" << "2v0.308,3v0.154,4v0.154,6v0.154,8v0.154,9v0.076";
break;
default: //Unknown
qWarning("Downmixer: Unknown channel configuration!");
args << "channels" << "2";
break;
}
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;
}
formatInfo->setAudioChannels(2);
return true;
}
Something went wrong with that request. Please try again.