src/Decoder_Opus.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_Opus.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 #include <QUuid>
  36
  37 bool OpusDecoder::m_disableResampling = false;
  38
  39 OpusDecoder::OpusDecoder(void)
  40 :
  41         m_binary(lamexp_tools_lookup("opusdec.exe"))
  42 {
  43         if(m_binary.isEmpty())
  44         {
  45                 MUTILS_THROW("Error initializing Opus decoder. Tool 'opusdec.exe' is not registred!");
  46         }
  47 }
  48
  49 OpusDecoder::~OpusDecoder(void)
  50 {
  51 }
  52
  53 bool OpusDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  54 {
  55         QProcess process;
  56         QStringList args;
  57
  58         if(m_disableResampling)
  59         {
  60                 args << "--no-resample";
  61         }
  62
  63         args << QDir::toNativeSeparators(sourceFile);
  64         args << QDir::toNativeSeparators(outputFile);
  65
  66         if(!startProcess(process, m_binary, args))
  67         {
  68                 return false;
  69         }
  70
  71         bool bTimeout = false;
  72         bool bAborted = false;
  73         int prevProgress = -1;
  74
  75         QRegExp regExp("\\((\\d+)%\\)");
  76
  77         while(process.state() != QProcess::NotRunning)
  78         {
  79                 if(*abortFlag)
  80                 {
  81                         process.kill();
  82                         bAborted = true;
  83                         emit messageLogged("\nABORTED BY USER !!!");
  84                         break;
  85                 }
  86                 process.waitForReadyRead(m_processTimeoutInterval);
  87                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  88                 {
  89                         process.kill();
  90                         qWarning("opusdec process timed out <-- killing!");
  91                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  92                         bTimeout = true;
  93                         break;
  94                 }
  95                 while(process.bytesAvailable() > 0)
  96                 {
  97                         QByteArray line = process.readLine();
  98                         QString text = QString::fromUtf8(line.constData()).simplified();
  99                         if(regExp.lastIndexIn(text) >= 0)
 100                         {
 101                                 bool ok = false;
 102                                 int progress = regExp.cap(1).toInt(&ok);
 103                                 if(ok && (progress > prevProgress))
 104                                 {
 105                                         emit statusUpdated(progress);
 106                                         prevProgress = qMin(progress + 2, 99);
 107                                 }
 108                         }
 109                         else if(!text.isEmpty())
 110                         {
 111                                 emit messageLogged(text);
 112                         }
 113                 }
 114         }
 115
 116         process.waitForFinished();
 117         if(process.state() != QProcess::NotRunning)
 118         {
 119                 process.kill();
 120                 process.waitForFinished(-1);
 121         }
 122
 123         emit statusUpdated(100);
 124         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 125
 126         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 127         {
 128                 return false;
 129         }
 130
 131         return true;
 132 }
 133
 134 bool OpusDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 135 {
 136         if(containerType.compare("OGG", Qt::CaseInsensitive) == 0)
 137         {
 138                 if(formatType.compare("Opus", Qt::CaseInsensitive) == 0)
 139                 {
 140                         {
 141                                 return true;
 142                         }
 143                 }
 144         }
 145
 146         return false;
 147 }
 148
 149 const AbstractDecoder::supportedType_t *OpusDecoder::supportedTypes(void)
 150 {
 151         static const char *exts[] =
 152         {
 153                 "opus", "ogg", NULL
 154         };
 155
 156         static const supportedType_t s_supportedTypes[] =
 157         {
 158                 { "Opus Audio Codec", exts },
 159                 { NULL, NULL }
 160         };
 161
 162         return s_supportedTypes;
 163 }