src/Decoder_MAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2015 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, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Decoder_MAC.h"
  24
  25 //Internal
  26 #include "Global.h"
  27
  28 //MUtils
  29 #include <MUtils/Exception.h>
  30
  31 //Qt
  32 #include <QDir>
  33 #include <QProcess>
  34 #include <QRegExp>
  35
  36 MACDecoder::MACDecoder(void)
  37 :
  38         m_binary(lamexp_tools_lookup("mac.exe"))
  39 {
  40         if(m_binary.isEmpty())
  41         {
  42                 MUTILS_THROW("Error initializing MAC decoder. Tool 'mac.exe' is not registred!");
  43         }
  44 }
  45
  46 MACDecoder::~MACDecoder(void)
  47 {
  48 }
  49
  50 bool MACDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  51 {
  52         QProcess process;
  53         QStringList args;
  54
  55         args << QDir::toNativeSeparators(sourceFile);
  56         args << QDir::toNativeSeparators(outputFile);
  57         args << "-d";
  58
  59         if(!startProcess(process, m_binary, args))
  60         {
  61                 return false;
  62         }
  63
  64         bool bTimeout = false;
  65         bool bAborted = false;
  66         int prevProgress = -1;
  67
  68         QRegExp regExp("Progress: (\\d+).(\\d+)%");
  69
  70         while(process.state() != QProcess::NotRunning)
  71         {
  72                 if(*abortFlag)
  73                 {
  74                         process.kill();
  75                         bAborted = true;
  76                         emit messageLogged("\nABORTED BY USER !!!");
  77                         break;
  78                 }
  79                 process.waitForReadyRead(m_processTimeoutInterval);
  80                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  81                 {
  82                         process.kill();
  83                         qWarning("MAC process timed out <-- killing!");
  84                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  85                         bTimeout = true;
  86                         break;
  87                 }
  88                 while(process.bytesAvailable() > 0)
  89                 {
  90                         QByteArray line = process.readLine();
  91                         QString text = QString::fromUtf8(line.constData()).simplified();
  92                         if(regExp.lastIndexIn(text) >= 0)
  93                         {
  94                                 bool ok = false;
  95                                 int progress = regExp.cap(1).toInt(&ok);
  96                                 if(ok && (progress > prevProgress))
  97                                 {
  98                                         emit statusUpdated(progress);
  99                                         prevProgress = qMin(progress + 2, 99);
 100                                 }
 101                         }
 102                         else if(!text.isEmpty())
 103                         {
 104                                 emit messageLogged(text);
 105                         }
 106                 }
 107         }
 108
 109         process.waitForFinished();
 110         if(process.state() != QProcess::NotRunning)
 111         {
 112                 process.kill();
 113                 process.waitForFinished(-1);
 114         }
 115
 116         emit statusUpdated(100);
 117         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 118
 119         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 120         {
 121                 return false;
 122         }
 123
 124         return true;
 125 }
 126
 127 bool MACDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 128 {
 129         if(containerType.compare("Monkey's Audio", Qt::CaseInsensitive) == 0)
 130         {
 131                 if(formatType.compare("Monkey's Audio", Qt::CaseInsensitive) == 0)
 132                 {
 133                         return true;
 134                 }
 135         }
 136
 137         return false;
 138 }
 139
 140 const AbstractDecoder::supportedType_t *MACDecoder::supportedTypes(void)
 141 {
 142         static const char *exts[] =
 143         {
 144                 "ape", NULL
 145         };
 146
 147         static const supportedType_t s_supportedTypes[] =
 148         {
 149                 { "Monkey's Audio", exts },
 150                 { NULL, NULL }
 151         };
 152
 153         return s_supportedTypes;
 154 }