src/Decoder_WMA.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_WMA.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QSystemSemaphore>
  30 #include <QUuid>
  31
  32 WMADecoder::WMADecoder(void)
  33 :
  34         m_binary(lamexp_lookup_tool("wmawav.exe")),
  35         m_semaphore(new QSystemSemaphore("{84BB780D-67D3-49DC-ADF0-97C795A55D5C}", 1))
  36 {
  37         if(m_binary.isEmpty())
  38         {
  39                 throw "Error initializing WMA decoder. Tool 'wmawav.exe' is not registred!";
  40         }
  41 }
  42
  43 WMADecoder::~WMADecoder(void)
  44 {
  45 }
  46
  47 bool WMADecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  48 {
  49         QProcess process;
  50         QStringList args;
  51
  52         args << pathToShort(QDir::toNativeSeparators(sourceFile));
  53         args << pathToShort(QDir::toNativeSeparators(outputFile));
  54
  55         if(!m_semaphore->acquire())
  56         {
  57                 emit messageLogged("Failed to acquire the semaphore!");
  58                 return false;
  59         }
  60
  61         if(!startProcess(process, m_binary, args))
  62         {
  63                 m_semaphore->release();
  64                 return false;
  65         }
  66
  67         bool bTimeout = false;
  68         bool bAborted = false;
  69
  70         //The WMA Decoder doesn't actually send any status updates :-[
  71         emit statusUpdated(20 + (QUuid::createUuid().data1 % 80));
  72
  73         while(process.state() != QProcess::NotRunning)
  74         {
  75                 if(*abortFlag)
  76                 {
  77                         process.kill();
  78                         bAborted = true;
  79                         emit messageLogged("\nABORTED BY USER !!!");
  80                         break;
  81                 }
  82                 process.waitForReadyRead();
  83                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  84                 {
  85                         process.kill();
  86                         qWarning("WmaWav process timed out <-- killing!");
  87                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  88                         bTimeout = true;
  89                         break;
  90                 }
  91                 while(process.bytesAvailable() > 0)
  92                 {
  93                         QByteArray line = process.readLine();
  94                         QString text = QString::fromUtf8(line.constData()).simplified();
  95                         if(!text.isEmpty())
  96                         {
  97                                 emit messageLogged(text);
  98                         }
  99                 }
 100         }
 101
 102         process.waitForFinished();
 103         if(process.state() != QProcess::NotRunning)
 104         {
 105                 process.kill();
 106                 process.waitForFinished(-1);
 107         }
 108
 109         emit statusUpdated(100);
 110         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 111         m_semaphore->release();
 112
 113         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit || QFileInfo(outputFile).size() == 0)
 114         {
 115                 return false;
 116         }
 117
 118         return true;
 119 }
 120
 121 bool WMADecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 122 {
 123         if(containerType.compare("Windows Media", Qt::CaseInsensitive) == 0)
 124         {
 125                 if(formatType.compare("WMA", Qt::CaseInsensitive) == 0)
 126                 {
 127                         if(formatVersion.compare("Version 1", Qt::CaseInsensitive) == 0 || formatVersion.compare("Version 2", Qt::CaseInsensitive) == 0 || formatVersion.compare("Version 3", Qt::CaseInsensitive) == 0 || formatProfile.compare("Pro", Qt::CaseInsensitive) == 0 || formatProfile.compare("Lossless", Qt::CaseInsensitive) == 0)
 128                         {
 129                                 return true;
 130                         }
 131                 }
 132         }
 133
 134         return false;
 135 }
 136
 137 bool WMADecoder::isDecoderAvailable(void)
 138 {
 139         return lamexp_check_tool("wmawav.exe");
 140 }
 141
 142 QStringList WMADecoder::supportedTypes(void)
 143 {
 144         return QStringList() << "Windows Media Audio (*.wma)";
 145 }