src/Decoder_Avisynth.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_Avisynth.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29
  30 AvisynthDecoder::AvisynthDecoder(void)
  31 :
  32         m_binary(lamexp_lookup_tool("avs2wav.exe"))
  33 {
  34         if(m_binary.isEmpty())
  35         {
  36                 throw "Error initializing Avisynth decoder. Tool 'avs2wav.exe' is not registred!";
  37         }
  38 }
  39
  40 AvisynthDecoder::~AvisynthDecoder(void)
  41 {
  42 }
  43
  44 bool AvisynthDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  45 {
  46         QProcess process;
  47         QStringList args;
  48
  49         process.setWorkingDirectory(QFileInfo(outputFile).absolutePath());
  50
  51         args << QDir::toNativeSeparators(sourceFile);
  52         args << QDir::toNativeSeparators(outputFile);
  53
  54         if(!startProcess(process, m_binary, args))
  55         {
  56                 return false;
  57         }
  58
  59         bool bTimeout = false;
  60         bool bAborted = false;
  61
  62         QRegExp regExp("(\\d+)/(\\d+) \\[(\\d+)%\\]");
  63
  64         while(process.state() != QProcess::NotRunning)
  65         {
  66                 if(*abortFlag)
  67                 {
  68                         process.kill();
  69                         bAborted = true;
  70                         emit messageLogged("\nABORTED BY USER !!!");
  71                         break;
  72                 }
  73                 process.waitForReadyRead(m_processTimeoutInterval);
  74                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  75                 {
  76                         process.kill();
  77                         qWarning("AVS2WAV process timed out <-- killing!");
  78                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  79                         bTimeout = true;
  80                         break;
  81                 }
  82                 while(process.bytesAvailable() > 0)
  83                 {
  84                         QByteArray line = process.readLine();
  85                         QString text = QString::fromUtf8(line.constData()).simplified();
  86                         if(regExp.lastIndexIn(text) >= 0)
  87                         {
  88                                 bool ok = false;
  89                                 int progress = regExp.cap(3).toInt(&ok);
  90                                 if(ok) emit statusUpdated(progress);
  91                         }
  92                         else if(!text.isEmpty())
  93                         {
  94                                 emit messageLogged(text);
  95                         }
  96                 }
  97         }
  98
  99         process.waitForFinished();
 100         if(process.state() != QProcess::NotRunning)
 101         {
 102                 process.kill();
 103                 process.waitForFinished(-1);
 104         }
 105
 106         emit statusUpdated(100);
 107         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 108
 109         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 110         {
 111                 return false;
 112         }
 113
 114         return true;
 115 }
 116
 117 bool AvisynthDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 118 {
 119         if(containerType.compare("Avisynth", Qt::CaseInsensitive) == 0)
 120         {
 121                 if(formatType.compare("Avisynth", Qt::CaseInsensitive) == 0)
 122                 {
 123                         return true;
 124                 }
 125         }
 126
 127         return false;
 128 }
 129
 130 QStringList AvisynthDecoder::supportedTypes(void)
 131 {
 132         return QStringList() << "Avisynth Script (*.avs)";
 133 }