src/Decoder_Shorten.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2017 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_Shorten.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 ShortenDecoder::ShortenDecoder(void)
  38 :
  39         m_binary(lamexp_tools_lookup("shorten.exe"))
  40 {
  41         if(m_binary.isEmpty())
  42         {
  43                 MUTILS_THROW("Error initializing Shorten decoder. Tool 'shorten.exe' is not registred!");
  44         }
  45 }
  46
  47 ShortenDecoder::~ShortenDecoder(void)
  48 {
  49 }
  50
  51 bool ShortenDecoder::decode(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
  52 {
  53         QProcess process;
  54         QStringList args;
  55
  56         args << "-x";
  57         args << QDir::toNativeSeparators(sourceFile);
  58         args << QDir::toNativeSeparators(outputFile);
  59
  60         if(!startProcess(process, m_binary, args))
  61         {
  62                 return false;
  63         }
  64
  65         bool bTimeout = false;
  66         bool bAborted = false;
  67
  68         //The Shorten Decoder doesn't actually send any status updates :-[
  69         emit statusUpdated(20 + (QUuid::createUuid().data1 % 80));
  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("Shorten 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(!text.isEmpty())
  94                         {
  95                                 emit messageLogged(text);
  96                         }
  97                 }
  98         }
  99
 100         process.waitForFinished();
 101         if(process.state() != QProcess::NotRunning)
 102         {
 103                 process.kill();
 104                 process.waitForFinished(-1);
 105         }
 106
 107         emit statusUpdated(100);
 108         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 109
 110         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS || QFileInfo(outputFile).size() == 0)
 111         {
 112                 return false;
 113         }
 114
 115         return true;
 116 }
 117
 118 bool ShortenDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 119 {
 120         if(containerType.compare("Shorten", Qt::CaseInsensitive) == 0)
 121         {
 122                 if(formatType.compare("Shorten", Qt::CaseInsensitive) == 0)
 123                 {
 124                         return true;
 125                 }
 126         }
 127
 128         return false;
 129 }
 130
 131 const AbstractDecoder::supportedType_t *ShortenDecoder::supportedTypes(void)
 132 {
 133         static const char *exts[] =
 134         {
 135                 "shn", NULL
 136         };
 137
 138         static const supportedType_t s_supportedTypes[] =
 139         {
 140                 { "Shorten", exts },
 141                 { NULL, NULL }
 142         };
 143
 144         return s_supportedTypes;
 145 }