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         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!
  65
  66         while(process.state() != QProcess::NotRunning)
  67         {
  68                 if(*abortFlag)
  69                 {
  70                         process.kill();
  71                         bAborted = true;
  72                         emit messageLogged("\nABORTED BY USER !!!");
  73                         break;
  74                 }
  75                 process.waitForReadyRead(m_processTimeoutInterval);
  76                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  77                 {
  78                         process.kill();
  79                         qWarning("SoX process timed out <-- killing!");
  80                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  81                         bTimeout = true;
  82                         break;
  83                 }
  84                 while(process.bytesAvailable() > 0)
  85                 {
  86                         QByteArray line = process.readLine();
  87                         QString text = QString::fromUtf8(line.constData()).simplified();
  88                         if(regExp_precision.lastIndexIn(text) >= 0)
  89                         {
  90                                 bool ok = false;
  91                                 unsigned int tmp = regExp_precision.cap(1).toUInt(&ok);
  92                                 if(ok) info->setFormatAudioBitdepth(tmp);
  93                                 emit statusUpdated(qMin(progress += 25, 100));
  94                         }
  95                         if(regExp_encoding.lastIndexIn(text) >= 0)
  96                         {
  97                                 bool ok = false;
  98                                 unsigned int tmp = regExp_encoding.cap(1).toUInt(&ok);
  99                                 if(ok) info->setFormatAudioBitdepth(tmp);
 100                                 emit statusUpdated(qMin(progress += 25, 100));
 101                         }
 102                         if(regExp_samplerate.lastIndexIn(text) >= 0)
 103                         {
 104                                 bool ok = false;
 105                                 unsigned int tmp = regExp_samplerate.cap(1).toUInt(&ok);
 106                                 if(ok) info->setFormatAudioSamplerate(tmp);
 107                                 emit statusUpdated(qMin(progress += 25, 100));
 108                         }
 109                         if(regExp_duration.lastIndexIn(text) >= 0)
 110                         {
 111                                 bool ok[4] = {false, false, false, false};
 112                                 unsigned int tmp1 = regExp_duration.cap(1).toUInt(&ok[0]);
 113                                 unsigned int tmp2 = regExp_duration.cap(2).toUInt(&ok[1]);
 114                                 unsigned int tmp3 = regExp_duration.cap(3).toUInt(&ok[2]);
 115                                 unsigned int tmp4 = regExp_duration.cap(4).toUInt(&ok[3]);
 116                                 if(ok[0] && ok[1] && ok[2] && ok[3])
 117                                 {
 118                                         info->setFileDuration((tmp1 * 3600) + (tmp2 * 60) + tmp3 + qRound(static_cast<double>(tmp4) / 100.0));
 119                                 }
 120                                 emit statusUpdated(qMin(progress += 25, 100));
 121                         }
 122                         if(regExp_channels.lastIndexIn(text) >= 0)
 123                         {
 124                                 bool ok = false;
 125                                 unsigned int tmp = regExp_channels.cap(1).toUInt(&ok);
 126                                 if(ok) info->setFormatAudioChannels(tmp);
 127                                 emit statusUpdated(qMin(progress += 25, 100));
 128                         }
 129                         if(!text.isEmpty())
 130                         {
 131                                 emit messageLogged(text);
 132                         }
 133                 }
 134         }
 135
 136         process.waitForFinished();
 137         if(process.state() != QProcess::NotRunning)
 138         {
 139                 process.kill();
 140                 process.waitForFinished(-1);
 141         }
 142
 143         emit statusUpdated(100);
 144         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 145
 146         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 147         {
 148                 return false;
 149         }
 150
 151         return true;
 152 }