src/Decoder_Avisynth.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_Avisynth.h"
  24
  25
  26 //Internal
  27 #include "Global.h"
  28
  29 //MUtils
  30 #include <MUtils/Exception.h>
  31
  32 //Qt
  33 #include <QDir>
  34 #include <QProcess>
  35 #include <QRegExp>
  36
  37 AvisynthDecoder::AvisynthDecoder(void)
  38 :
  39         m_binary(lamexp_tool_lookup("avs2wav.exe"))
  40 {
  41         if(m_binary.isEmpty())
  42         {
  43                 MUTILS_THROW("Error initializing Avisynth decoder. Tool 'avs2wav.exe' is not registred!");
  44         }
  45 }
  46
  47 AvisynthDecoder::~AvisynthDecoder(void)
  48 {
  49 }
  50
  51 bool AvisynthDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  52 {
  53         QProcess process;
  54         QStringList args;
  55
  56         process.setWorkingDirectory(QFileInfo(outputFile).absolutePath());
  57
  58         args << QDir::toNativeSeparators(sourceFile);
  59         args << QDir::toNativeSeparators(outputFile);
  60
  61         if(!startProcess(process, m_binary, args))
  62         {
  63                 return false;
  64         }
  65
  66         bool bTimeout = false;
  67         bool bAborted = false;
  68
  69         QRegExp regExp("(\\d+)/(\\d+) \\[(\\d+)%\\]");
  70
  71         while(process.state() != QProcess::NotRunning)
  72         {
  73                 if(*abortFlag)
  74                 {
  75                         process.kill();
  76                         bAborted = true;
  77                         emit messageLogged("\nABORTED BY USER !!!");
  78                         break;
  79                 }
  80                 process.waitForReadyRead(m_processTimeoutInterval);
  81                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  82                 {
  83                         process.kill();
  84                         qWarning("AVS2WAV process timed out <-- killing!");
  85                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  86                         bTimeout = true;
  87                         break;
  88                 }
  89                 while(process.bytesAvailable() > 0)
  90                 {
  91                         QByteArray line = process.readLine();
  92                         QString text = QString::fromUtf8(line.constData()).simplified();
  93                         if(regExp.lastIndexIn(text) >= 0)
  94                         {
  95                                 bool ok = false;
  96                                 int progress = regExp.cap(3).toInt(&ok);
  97                                 if(ok) emit statusUpdated(progress);
  98                         }
  99                         else if(!text.isEmpty())
 100                         {
 101                                 emit messageLogged(text);
 102                         }
 103                 }
 104         }
 105
 106         process.waitForFinished();
 107         if(process.state() != QProcess::NotRunning)
 108         {
 109                 process.kill();
 110                 process.waitForFinished(-1);
 111         }
 112
 113         emit statusUpdated(100);
 114         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 115
 116         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 117         {
 118                 return false;
 119         }
 120
 121         return true;
 122 }
 123
 124 bool AvisynthDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 125 {
 126         if(containerType.compare("Avisynth", Qt::CaseInsensitive) == 0)
 127         {
 128                 if(formatType.compare("Avisynth", Qt::CaseInsensitive) == 0)
 129                 {
 130                         return true;
 131                 }
 132         }
 133
 134         return false;
 135 }
 136
 137 QStringList AvisynthDecoder::supportedTypes(void)
 138 {
 139         return QStringList() << "Avisynth Script (*.avs)";
 140 }