src/Decoder_ALAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2012 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_ALAC.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QUuid>
  30
  31 ALACDecoder::ALACDecoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("alac.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing ALAC decoder. Tool 'alac.exe' is not registred!";
  38         }
  39 }
  40
  41 ALACDecoder::~ALACDecoder(void)
  42 {
  43 }
  44
  45 bool ALACDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         args << "-f" << QDir::toNativeSeparators(outputFile);
  51         args << QDir::toNativeSeparators(sourceFile);
  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 ALAC Decoder doesn't actually send any status updates :-[
  62         emit statusUpdated(20 + (QUuid::createUuid().data1 % 60));
  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(m_processTimeoutInterval);
  74                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  75                 {
  76                         process.kill();
  77                         qWarning("ALAC process timed out <-- killing!");
  78                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  79                         bTimeout = true;
  80                         break;
  81                 }
  82                 while(process.bytesAvailable() > 0)
  83                 {
  84                         QByteArray line = process.readLine();
  85                         QString text = QString::fromUtf8(line.constData()).simplified();
  86                         if(!text.isEmpty())
  87                         {
  88                                 emit messageLogged(text);
  89                         }
  90                 }
  91         }
  92
  93         process.waitForFinished();
  94         if(process.state() != QProcess::NotRunning)
  95         {
  96                 process.kill();
  97                 process.waitForFinished(-1);
  98         }
  99
 100         emit statusUpdated(100);
 101         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 102
 103         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 104         {
 105                 return false;
 106         }
 107
 108         return true;
 109 }
 110
 111 bool ALACDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 112 {
 113         if(containerType.compare("MPEG-4", Qt::CaseInsensitive) == 0)
 114         {
 115                 if(formatType.compare("ALAC", Qt::CaseInsensitive) == 0)
 116                 {
 117                         return true;
 118                 }
 119         }
 120
 121         return false;
 122 }
 123
 124 QStringList ALACDecoder::supportedTypes(void)
 125 {
 126         return QStringList() << "Apple Lossless (*.mp4 *.m4a)";
 127 }