src/Decoder_Musepack.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 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.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Decoder_Musepack.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QUuid>
  30
  31 MusepackDecoder::MusepackDecoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("mpcdec.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing Musepack decoder. Tool 'mpcdec.exe' is not registred!";
  38         }
  39 }
  40
  41 MusepackDecoder::~MusepackDecoder(void)
  42 {
  43 }
  44
  45 bool MusepackDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         args << QDir::toNativeSeparators(sourceFile);
  51         args << QDir::toNativeSeparators(outputFile);
  52
  53         if(!startProcess(process, m_binary, args))
  54         {
  55                 return false;
  56         }
  57
  58         bool bTimeout = false;
  59         bool bAborted = false;
  60
  61         //The Musepack Decoder doesn't actually send any status updates :-[
  62         emit statusUpdated(20 + (QUuid::createUuid().data1 % 80));
  63
  64         while(process.state() != QProcess::NotRunning)
  65         {
  66                 if(*abortFlag)
  67                 {
  68                         process.kill();
  69                         bAborted = true;
  70                         emit messageLogged("\nABORTED BY USER !!!");
  71                         break;
  72                 }
  73                 process.waitForReadyRead(180000);
  74                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  75                 {
  76                         process.kill();
  77                         qWarning("MpcDec process timed out <-- killing!");
  78                         bTimeout = true;
  79                         break;
  80                 }
  81                 while(process.bytesAvailable() > 0)
  82                 {
  83                         QByteArray line = process.readLine();
  84                         QString text = QString::fromUtf8(line.constData()).simplified();
  85                         if(!text.isEmpty())
  86                         {
  87                                 emit messageLogged(text);
  88                         }
  89                 }
  90         }
  91
  92         process.waitForFinished();
  93         if(process.state() != QProcess::NotRunning)
  94         {
  95                 process.kill();
  96                 process.waitForFinished(-1);
  97         }
  98
  99         emit statusUpdated(100);
 100         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 101
 102         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit || QFileInfo(outputFile).size() == 0)
 103         {
 104                 return false;
 105         }
 106
 107         return true;
 108 }
 109
 110 bool MusepackDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 111 {
 112         if(containerType.compare("Musepack SV8", Qt::CaseInsensitive) == 0 || containerType.compare("Musepack SV7", Qt::CaseInsensitive) == 0)
 113         {
 114                 if(formatType.compare("Musepack SV8", Qt::CaseInsensitive) == 0 || formatType.compare("Musepack SV7", Qt::CaseInsensitive) == 0)
 115                 {
 116                         return true;
 117                 }
 118         }
 119
 120         return false;
 121 }
 122
 123 QStringList MusepackDecoder::supportedTypes(void)
 124 {
 125         return QStringList() << "Musepack (*.mpc *.mpp *.mp+)";
 126 }