src/Decoder_Shorten.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2013 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_Shorten.h"
  23
  24 #include "Global.h"
  25
  26 #include <QDir>
  27 #include <QProcess>
  28 #include <QRegExp>
  29 #include <QUuid>
  30
  31 ShortenDecoder::ShortenDecoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("shorten.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing Shorten decoder. Tool 'shorten.exe' is not registred!";
  38         }
  39 }
  40
  41 ShortenDecoder::~ShortenDecoder(void)
  42 {
  43 }
  44
  45 bool ShortenDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         args << "-x";
  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         //The Shorten Decoder doesn't actually send any status updates :-[
  63         emit statusUpdated(20 + (QUuid::createUuid().data1 % 80));
  64
  65         while(process.state() != QProcess::NotRunning)
  66         {
  67                 if(*abortFlag)
  68                 {
  69                         process.kill();
  70                         bAborted = true;
  71                         emit messageLogged("\nABORTED BY USER !!!");
  72                         break;
  73                 }
  74                 process.waitForReadyRead(m_processTimeoutInterval);
  75                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  76                 {
  77                         process.kill();
  78                         qWarning("Shorten process timed out <-- killing!");
  79                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  80                         bTimeout = true;
  81                         break;
  82                 }
  83                 while(process.bytesAvailable() > 0)
  84                 {
  85                         QByteArray line = process.readLine();
  86                         QString text = QString::fromUtf8(line.constData()).simplified();
  87                         if(!text.isEmpty())
  88                         {
  89                                 emit messageLogged(text);
  90                         }
  91                 }
  92         }
  93
  94         process.waitForFinished();
  95         if(process.state() != QProcess::NotRunning)
  96         {
  97                 process.kill();
  98                 process.waitForFinished(-1);
  99         }
 100
 101         emit statusUpdated(100);
 102         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 103
 104         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 105         {
 106                 return false;
 107         }
 108
 109         return true;
 110 }
 111
 112 bool ShortenDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 113 {
 114         if(containerType.compare("Shorten", Qt::CaseInsensitive) == 0)
 115         {
 116                 if(formatType.compare("Shorten", Qt::CaseInsensitive) == 0)
 117                 {
 118                         return true;
 119                 }
 120         }
 121
 122         return false;
 123 }
 124
 125 QStringList ShortenDecoder::supportedTypes(void)
 126 {
 127         return QStringList() << "Shorten (*.shn)";
 128 }