src/Decoder_AAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 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_AAC.h"
  24
  25 #include "Global.h"
  26
  27 #include <QDir>
  28 #include <QProcess>
  29 #include <QRegExp>
  30
  31 AACDecoder::AACDecoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("faad.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 THROW("Error initializing AAC decoder. Tool 'faad.exe' is not registred!");
  38         }
  39 }
  40
  41 AACDecoder::~AACDecoder(void)
  42 {
  43 }
  44
  45 bool AACDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         args << "-o" << 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         QRegExp regExp("\\[(\\d+)%\\]\\s+decoding\\s+");
  62
  63         while(process.state() != QProcess::NotRunning)
  64         {
  65                 if(*abortFlag)
  66                 {
  67                         process.kill();
  68                         bAborted = true;
  69                         emit messageLogged("\nABORTED BY USER !!!");
  70                         break;
  71                 }
  72                 process.waitForReadyRead(m_processTimeoutInterval);
  73                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  74                 {
  75                         process.kill();
  76                         qWarning("FAAD process timed out <-- killing!");
  77                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  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(regExp.lastIndexIn(text) >= 0)
  86                         {
  87                                 bool ok = false;
  88                                 int progress = regExp.cap(1).toInt(&ok);
  89                                 if(ok) emit statusUpdated(progress);
  90                         }
  91                         else if(!text.isEmpty())
  92                         {
  93                                 emit messageLogged(text);
  94                         }
  95                 }
  96         }
  97
  98         process.waitForFinished();
  99         if(process.state() != QProcess::NotRunning)
 100         {
 101                 process.kill();
 102                 process.waitForFinished(-1);
 103         }
 104
 105         emit statusUpdated(100);
 106         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 107
 108         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 109         {
 110                 return false;
 111         }
 112
 113         return true;
 114 }
 115
 116 bool AACDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 117 {
 118         if(containerType.compare("ADTS", Qt::CaseInsensitive) == 0 || containerType.compare("MPEG-4", Qt::CaseInsensitive) == 0)
 119         {
 120                 if(formatType.compare("AAC", Qt::CaseInsensitive) == 0)
 121                 {
 122                         QStringList profileParts = formatProfile.split(" ", QString::SkipEmptyParts);
 123                         if(profileParts.contains("LC", Qt::CaseInsensitive) || profileParts.contains("HE-AAC", Qt::CaseInsensitive) || profileParts.contains("HE-AACv2", Qt::CaseInsensitive))
 124                         {
 125                                 if(formatVersion.compare("Version 2", Qt::CaseInsensitive) == 0 || formatVersion.compare("Version 4", Qt::CaseInsensitive) == 0 || formatVersion.isEmpty())
 126                                 {
 127                                         return true;
 128                                 }
 129                         }
 130                 }
 131         }
 132
 133         return false;
 134 }
 135
 136 QStringList AACDecoder::supportedTypes(void)
 137 {
 138         return QStringList() << "Advanced Audio Coding (*.aac *.mp4 *.m4a)";
 139 }