src/Tool_WaveProperties.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 "Tool_WaveProperties.h"
  23
  24 #include "Global.h"
  25 #include "Model_AudioFile.h"
  26
  27 #include <QProcess>
  28
  29 WaveProperties::WaveProperties(void)
  30 :
  31         m_binary(lamexp_lookup_tool("sox.exe"))
  32 {
  33         if(m_binary.isEmpty())
  34         {
  35                 throw "Error initializing MP3 encoder. Tool 'lame.exe' is not registred!";
  36         }
  37 }
  38
  39 WaveProperties::~WaveProperties(void)
  40 {
  41 }
  42
  43 bool WaveProperties::detect(const QString &sourceFile, AudioFileModel *info, volatile bool *abortFlag)
  44 {
  45         QProcess process;
  46         QStringList args;
  47
  48         args << "--i" << sourceFile;
  49
  50         if(!startProcess(process, m_binary, args))
  51         {
  52                 return false;
  53         }
  54
  55         bool bTimeout = false;
  56         bool bAborted = false;
  57
  58         int progress = 0;
  59
  60         QRegExp regExp_precision("Precision\\s*:\\s*(\\d+)-bit", Qt::CaseInsensitive);
  61         QRegExp regExp_samplerate("Sample Rate\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  62         QRegExp regExp_duration("Duration\\s*:\\s*(\\d\\d):(\\d\\d):(\\d\\d)\\.(\\d\\d)", Qt::CaseInsensitive);
  63         QRegExp regExp_channels("Channels\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  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("SoX 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(regExp_precision.lastIndexIn(text) >= 0)
  88                         {
  89                                 bool ok = false;
  90                                 unsigned int tmp = regExp_precision.cap(1).toUInt(&ok);
  91                                 if(ok) info->setFormatAudioBitdepth(tmp);
  92                                 emit statusUpdated(qMin(progress += 25, 100));
  93                         }
  94                         if(regExp_samplerate.lastIndexIn(text) >= 0)
  95                         {
  96                                 bool ok = false;
  97                                 unsigned int tmp = regExp_samplerate.cap(1).toUInt(&ok);
  98                                 if(ok) info->setFormatAudioSamplerate(tmp);
  99                                 emit statusUpdated(qMin(progress += 25, 100));
 100                         }
 101                         if(regExp_duration.lastIndexIn(text) >= 0)
 102                         {
 103                                 bool ok[4] = {false, false, false, false};
 104                                 unsigned int tmp1 = regExp_duration.cap(1).toUInt(&ok[0]);
 105                                 unsigned int tmp2 = regExp_duration.cap(2).toUInt(&ok[1]);
 106                                 unsigned int tmp3 = regExp_duration.cap(3).toUInt(&ok[2]);
 107                                 unsigned int tmp4 = regExp_duration.cap(4).toUInt(&ok[3]);
 108                                 if(ok[0] && ok[1] && ok[2] && ok[3])
 109                                 {
 110                                         info->setFileDuration((tmp1 * 3600) + (tmp2 * 60) + tmp3 + qRound(static_cast<double>(tmp4) / 100.0));
 111                                 }
 112                                 emit statusUpdated(qMin(progress += 25, 100));
 113                         }
 114                         if(regExp_channels.lastIndexIn(text) >= 0)
 115                         {
 116                                 bool ok = false;
 117                                 unsigned int tmp = regExp_channels.cap(1).toUInt(&ok);
 118                                 if(ok) info->setFormatAudioChannels(tmp);
 119                                 emit statusUpdated(qMin(progress += 25, 100));
 120                         }
 121                         if(!text.isEmpty())
 122                         {
 123                                 emit messageLogged(text);
 124                         }
 125                 }
 126         }
 127
 128         process.waitForFinished();
 129         if(process.state() != QProcess::NotRunning)
 130         {
 131                 process.kill();
 132                 process.waitForFinished(-1);
 133         }
 134
 135         emit statusUpdated(100);
 136         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 137
 138         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 139         {
 140                 return false;
 141         }
 142
 143         return true;
 144 }