src/Decoder_ADPCM.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_ADPCM.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29
  30 ADPCMDecoder::ADPCMDecoder(void)
  31 :
  32         m_binary(lamexp_lookup_tool("sox.exe"))
  33 {
  34         if(m_binary.isEmpty())
  35         {
  36                 throw "Error initializing Vorbis decoder. Tool 'sox.exe' is not registred!";
  37         }
  38 }
  39
  40 ADPCMDecoder::~ADPCMDecoder(void)
  41 {
  42 }
  43
  44 bool ADPCMDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  45 {
  46         QProcess process;
  47         QStringList args;
  48
  49         process.setWorkingDirectory(lamexp_temp_folder());
  50
  51         args << "-V3" << "-S" << "--temp" << ".";
  52         args << QDir::toNativeSeparators(sourceFile);
  53         args << "-e" << "signed-integer";
  54         args << QDir::toNativeSeparators(outputFile);
  55
  56         if(!startProcess(process, m_binary, args))
  57         {
  58                 return false;
  59         }
  60
  61         bool bTimeout = false;
  62         bool bAborted = false;
  63
  64         QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
  65
  66         while(process.state() != QProcess::NotRunning)
  67         {
  68                 if(*abortFlag)
  69                 {
  70                         process.kill();
  71                         bAborted = true;
  72                         emit messageLogged("\nABORTED BY USER !!!");
  73                         break;
  74                 }
  75                 process.waitForReadyRead();
  76                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  77                 {
  78                         process.kill();
  79                         qWarning("Sox process timed out <-- killing!");
  80                         bTimeout = true;
  81                         break;
  82                 }
  83                 while(process.bytesAvailable() > 0)
  84                 {
  85                         QByteArray line = process.readLine();
  86                         QString text = QString::fromUtf8(line.constData()).simplified();
  87                         if(regExp.lastIndexIn(text) >= 0)
  88                         {
  89                                 bool ok = false;
  90                                 int progress = regExp.cap(1).toInt(&ok);
  91                                 if(ok) emit statusUpdated(progress);
  92                         }
  93                         else if(!text.isEmpty())
  94                         {
  95                                 emit messageLogged(text);
  96                         }
  97                 }
  98         }
  99
 100         process.waitForFinished();
 101         if(process.state() != QProcess::NotRunning)
 102         {
 103                 process.kill();
 104                 process.waitForFinished(-1);
 105         }
 106
 107         emit statusUpdated(100);
 108         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 109
 110         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit || QFileInfo(outputFile).size() == 0)
 111         {
 112                 return false;
 113         }
 114
 115         return true;
 116 }
 117
 118 bool ADPCMDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 119 {
 120         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 121         {
 122                 if(formatType.compare("ADPCM", Qt::CaseInsensitive) == 0)
 123                 {
 124                         return true;
 125                 }
 126         }
 127
 128         if(containerType.compare("AIFF", Qt::CaseInsensitive) == 0 || containerType.compare("AU", Qt::CaseInsensitive) == 0)
 129         {
 130                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0 || formatType.compare("ADPCM", Qt::CaseInsensitive) == 0)
 131                 {
 132                         return true;
 133                 }
 134         }
 135
 136         return false;
 137 }
 138
 139 QStringList ADPCMDecoder::supportedTypes(void)
 140 {
 141         return QStringList() << "Microsoft ADPCM (*.wav)" << "Apple/SGI AIFF (*.aif *.aiff)" << "Sun/NeXT Au (*.au *.snd)";
 142 }