src/Decoder_Opus.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_Opus.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QUuid>
  30
  31 OpusDecoder::OpusDecoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("opusdec.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing Opus decoder. Tool 'opusdec.exe' is not registred!";
  38         }
  39 }
  40
  41 OpusDecoder::~OpusDecoder(void)
  42 {
  43 }
  44
  45 bool OpusDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         args << QDir::toNativeSeparators(sourceFile);
  51         args << QDir::toNativeSeparators(outputFile);
  52
  53         if(!startProcess(process, m_binary, args))
  54         {
  55                 return false;
  56         }
  57
  58         bool bTimeout = false;
  59         bool bAborted = false;
  60         int prevProgress = -1;
  61
  62         //QRegExp regExp("\\s+Time:\\s+(\\d+):(\\d+)\\.(\\d+)\\s+\\[(\\d+):(\\d+)\\.(\\d+)\\],");
  63
  64         //The ALAC Decoder doesn't actually send any status updates :-[
  65         emit statusUpdated(20 + (QUuid::createUuid().data1 % 60));
  66
  67         while(process.state() != QProcess::NotRunning)
  68         {
  69                 if(*abortFlag)
  70                 {
  71                         process.kill();
  72                         bAborted = true;
  73                         emit messageLogged("\nABORTED BY USER !!!");
  74                         break;
  75                 }
  76                 process.waitForReadyRead(m_processTimeoutInterval);
  77                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  78                 {
  79                         process.kill();
  80                         qWarning("opusdec process timed out <-- killing!");
  81                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  82                         bTimeout = true;
  83                         break;
  84                 }
  85                 while(process.bytesAvailable() > 0)
  86                 {
  87                         QByteArray line = process.readLine();
  88                         QString text = QString::fromUtf8(line.constData()).simplified();
  89                         /* if(regExp.lastIndexIn(text) >= 0)
  90                         {
  91                                 int values[6];
  92                                 for(int i = 0; i < 6; i++)
  93                                 {
  94                                         bool ok = false;
  95                                         int temp = regExp.cap(i+1).toInt(&ok);
  96                                         values[i] = (ok ? temp : 0);
  97                                 }
  98                                 int timeDone = (60 * values[0]) + values[1];
  99                                 int timeLeft = (60 * values[3]) + values[4];
 100                                 if(timeDone > 0 || timeLeft > 0)
 101                                 {
 102                                         int newProgress = qRound((static_cast<double>(timeDone) / static_cast<double>(timeDone + timeLeft)) * 100.0);
 103                                         if(newProgress > prevProgress)
 104                                         {
 105                                                 emit statusUpdated(newProgress);
 106                                                 prevProgress = qMin(newProgress + 2, 99);
 107                                         }
 108                                 }
 109                         } */
 110                         if(!text.isEmpty())
 111                         {
 112                                 emit messageLogged(text);
 113                         }
 114                 }
 115         }
 116
 117         process.waitForFinished();
 118         if(process.state() != QProcess::NotRunning)
 119         {
 120                 process.kill();
 121                 process.waitForFinished(-1);
 122         }
 123
 124         emit statusUpdated(100);
 125         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 126
 127         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 128         {
 129                 return false;
 130         }
 131
 132         return true;
 133 }
 134
 135 bool OpusDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 136 {
 137         if(containerType.compare("OGG", Qt::CaseInsensitive) == 0)
 138         {
 139                 if(formatType.compare("Opus", Qt::CaseInsensitive) == 0)
 140                 {
 141                         {
 142                                 return true;
 143                         }
 144                 }
 145         }
 146
 147         return false;
 148 }
 149
 150 QStringList OpusDecoder::supportedTypes(void)
 151 {
 152         return QStringList() << "Opus Audio Codec (*.opus *.ogg)";
 153 }
 154