src/Tool_WaveProperties.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2015 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 "Tool_WaveProperties.h"
  24
  25 //Internal
  26 #include "Global.h"
  27 #include "Model_AudioFile.h"
  28
  29 //MUtils
  30 #include <MUtils/Exception.h>
  31
  32 //Qt
  33 #include <QDir>
  34 #include <QProcess>
  35
  36 WaveProperties::WaveProperties(void)
  37 :
  38         m_binary(lamexp_tools_lookup("sox.exe"))
  39 {
  40         if(m_binary.isEmpty())
  41         {
  42                 MUTILS_THROW("Error initializing MP3 encoder. Tool 'lame.exe' is not registred!");
  43         }
  44 }
  45
  46 WaveProperties::~WaveProperties(void)
  47 {
  48 }
  49
  50 bool WaveProperties::detect(const QString &sourceFile, AudioFileModel_TechInfo *info, volatile bool *abortFlag)
  51 {
  52         QProcess process;
  53         QStringList args;
  54
  55         args << "--i" << QDir::toNativeSeparators(sourceFile);
  56
  57         if(!startProcess(process, m_binary, args))
  58         {
  59                 return false;
  60         }
  61
  62         bool bTimeout = false;
  63         bool bAborted = false;
  64
  65         int progress = 0;
  66
  67         QRegExp regExp_precision("Precision\\s*:\\s*(\\d+)-bit", Qt::CaseInsensitive);
  68         QRegExp regExp_samplerate("Sample Rate\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  69         QRegExp regExp_duration("Duration\\s*:\\s*(\\d\\d):(\\d\\d):(\\d\\d)\\.(\\d\\d)", Qt::CaseInsensitive);
  70         QRegExp regExp_channels("Channels\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  71         QRegExp regExp_encoding("Sample Encoding\\s*:\\s*(\\d+)-bit\\s*Float", Qt::CaseInsensitive); //SoX returns a precision of 24-Bit for 32-Bit Float data, so we detect it this way!
  72
  73         while(process.state() != QProcess::NotRunning)
  74         {
  75                 if(*abortFlag)
  76                 {
  77                         process.kill();
  78                         bAborted = true;
  79                         emit messageLogged("\nABORTED BY USER !!!");
  80                         break;
  81                 }
  82                 process.waitForReadyRead(m_processTimeoutInterval);
  83                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  84                 {
  85                         process.kill();
  86                         qWarning("SoX process timed out <-- killing!");
  87                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  88                         bTimeout = true;
  89                         break;
  90                 }
  91                 while(process.bytesAvailable() > 0)
  92                 {
  93                         QByteArray line = process.readLine();
  94                         QString text = QString::fromUtf8(line.constData()).simplified();
  95                         if(regExp_precision.lastIndexIn(text) >= 0)
  96                         {
  97                                 bool ok = false;
  98                                 unsigned int tmp = regExp_precision.cap(1).toUInt(&ok);
  99                                 if(ok) info->setAudioBitdepth(tmp);
 100                                 emit statusUpdated(qMin(progress += 25, 100));
 101                         }
 102                         if(regExp_encoding.lastIndexIn(text) >= 0)
 103                         {
 104                                 bool ok = false;
 105                                 unsigned int tmp = regExp_encoding.cap(1).toUInt(&ok);
 106                                 if(ok) info->setAudioBitdepth((tmp == 32) ? AudioFileModel::BITDEPTH_IEEE_FLOAT32 : tmp);
 107                                 emit statusUpdated(qMin(progress += 25, 100));
 108                         }
 109                         if(regExp_samplerate.lastIndexIn(text) >= 0)
 110                         {
 111                                 bool ok = false;
 112                                 unsigned int tmp = regExp_samplerate.cap(1).toUInt(&ok);
 113                                 if(ok) info->setAudioSamplerate(tmp);
 114                                 emit statusUpdated(qMin(progress += 25, 100));
 115                         }
 116                         if(regExp_duration.lastIndexIn(text) >= 0)
 117                         {
 118                                 bool ok[4] = {false, false, false, false};
 119                                 unsigned int tmp1 = regExp_duration.cap(1).toUInt(&ok[0]);
 120                                 unsigned int tmp2 = regExp_duration.cap(2).toUInt(&ok[1]);
 121                                 unsigned int tmp3 = regExp_duration.cap(3).toUInt(&ok[2]);
 122                                 unsigned int tmp4 = regExp_duration.cap(4).toUInt(&ok[3]);
 123                                 if(ok[0] && ok[1] && ok[2] && ok[3])
 124                                 {
 125                                         info->setDuration((tmp1 * 3600) + (tmp2 * 60) + tmp3 + qRound(static_cast<double>(tmp4) / 100.0));
 126                                 }
 127                                 emit statusUpdated(qMin(progress += 25, 100));
 128                         }
 129                         if(regExp_channels.lastIndexIn(text) >= 0)
 130                         {
 131                                 bool ok = false;
 132                                 unsigned int tmp = regExp_channels.cap(1).toUInt(&ok);
 133                                 if(ok) info->setAudioChannels(tmp);
 134                                 emit statusUpdated(qMin(progress += 25, 100));
 135                         }
 136                         if(!text.isEmpty())
 137                         {
 138                                 emit messageLogged(text);
 139                         }
 140                 }
 141         }
 142
 143         process.waitForFinished();
 144         if(process.state() != QProcess::NotRunning)
 145         {
 146                 process.kill();
 147                 process.waitForFinished(-1);
 148         }
 149
 150         emit statusUpdated(100);
 151         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 152
 153         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 154         {
 155                 return false;
 156         }
 157
 158         return true;
 159 }