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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 "Decoder_MP3.h"
//Internal
#include "Global.h"
//MUtils
#include <MUtils/Global.h>
#include <MUtils/Exception.h>
//Qt
#include <QDir>
#include <QProcess>
#include <QRegExp>
MP3Decoder::MP3Decoder(void)
:
m_binary(lamexp_tools_lookup("mpg123.exe"))
{
if(m_binary.isEmpty())
{
MUTILS_THROW("Error initializing MPG123 decoder. Tool 'mpg123.exe' is not registred!");
}
}
MP3Decoder::~MP3Decoder(void)
{
}
bool MP3Decoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
{
QProcess process;
QStringList args;
args << "-v" << "--utf8" << "-w" << QDir::toNativeSeparators(outputFile);
args << QDir::toNativeSeparators(sourceFile);
if(!startProcess(process, m_binary, args))
{
return false;
}
bool bTimeout = false;
bool bAborted = false;
int prevProgress = -1;
QRegExp regExp("\\b\\d+\\+\\d+\\s+(\\d+):(\\d+)\\.(\\d+)\\+(\\d+):(\\d+)\\.(\\d+)\\b");
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("mpg123 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)
{
quint32 values[6];
if (MUtils::regexp_parse_uint32(regExp, values, 6))
{
const double timeDone = (60.0 * double(values[0])) + double(values[1]) + (double(values[2]) / 100.0);
const double timeLeft = (60.0 * double(values[3])) + double(values[4]) + (double(values[5]) / 100.0);
if ((timeDone >= 0.005) || (timeLeft >= 0.005))
{
const int newProgress = qRound((static_cast<double>(timeDone) / static_cast<double>(timeDone + timeLeft)) * 100.0);
if (newProgress > prevProgress)
{
emit statusUpdated(newProgress);
prevProgress = qMin(newProgress + 2, 99);
}
}
}
}
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)
{
return false;
}
return true;
}
bool MP3Decoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
{
if(containerType.compare("MPEG Audio", Qt::CaseInsensitive) == 0 || containerType.compare("Wave", Qt::CaseInsensitive) == 0)
{
if(formatType.compare("MPEG Audio", Qt::CaseInsensitive) == 0)
{
if(formatProfile.compare("Layer 3", Qt::CaseInsensitive) == 0 || formatProfile.compare("Layer 2", Qt::CaseInsensitive) == 0)
{
if(formatVersion.compare("Version 1", Qt::CaseInsensitive) == 0 || formatVersion.compare("Version 2", Qt::CaseInsensitive) == 0)
{
return true;
}
}
}
}
return false;
}
const AbstractDecoder::supportedType_t *MP3Decoder::supportedTypes(void)
{
static const char *exts[][3] =
{
{ "mp3", "mpa", NULL },
{ "mp2", "mpa", NULL },
{ "mp1", "mpa", NULL }
};
static const supportedType_t s_supportedTypes[] =
{
{ "MPEG Audio Layer III", exts[0] },
{ "MPEG Audio Layer II", exts[1] },
{ "MPEG Audio Layer I", exts[2] },
{ NULL, NULL }
};
return s_supportedTypes;
}