src/Tool_WaveProperties.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2018 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, QAtomicInt &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         int progress = 0;
  63
  64         QRegExp regExp_prc("Precision\\s*:\\s*(\\d+)-bit", Qt::CaseInsensitive);
  65         QRegExp regExp_srt("Sample Rate\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  66         QRegExp regExp_drt("Duration\\s*:\\s*(\\d\\d):(\\d\\d):(\\d\\d)\\.(\\d\\d)", Qt::CaseInsensitive);
  67         QRegExp regExp_chl("Channels\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
  68         QRegExp regExp_enc("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!
  69
  70         const result_t result = awaitProcess(process, abortFlag, [this, &info, &progress, &regExp_prc, &regExp_srt, &regExp_drt, &regExp_chl, &regExp_enc](const QString &text)
  71         {
  72                 if (regExp_prc.lastIndexIn(text) >= 0)
  73                 {
  74                         quint32 tmp;
  75                         if (MUtils::regexp_parse_uint32(regExp_prc, tmp))
  76                         {
  77                                 info->setAudioBitdepth(tmp);
  78                                 emit statusUpdated(qMin(progress += 25, 100));
  79                         }
  80                         return true;
  81                 }
  82                 if (regExp_enc.lastIndexIn(text) >= 0)
  83                 {
  84                         quint32 tmp;
  85                         if (MUtils::regexp_parse_uint32(regExp_enc, tmp))
  86                         {
  87                                 info->setAudioBitdepth((tmp == 32) ? AudioFileModel::BITDEPTH_IEEE_FLOAT32 : tmp);
  88                                 emit statusUpdated(qMin(progress += 25, 100));
  89                         }
  90                         return true;
  91                 }
  92                 if (regExp_srt.lastIndexIn(text) >= 0)
  93                 {
  94                         quint32 tmp;
  95                         if (MUtils::regexp_parse_uint32(regExp_srt, tmp))
  96                         {
  97                                 info->setAudioSamplerate(tmp);
  98                                 emit statusUpdated(qMin(progress += 25, 100));
  99                         }
 100                         return true;
 101                 }
 102                 if (regExp_drt.lastIndexIn(text) >= 0)
 103                 {
 104                         quint32 tmp[4];
 105                         if (MUtils::regexp_parse_uint32(regExp_drt, tmp, 4))
 106                         {
 107                                 info->setDuration((tmp[0] * 3600) + (tmp[1] * 60) + tmp[2] + qRound(static_cast<double>(tmp[3]) / 100.0));
 108                                 emit statusUpdated(qMin(progress += 25, 100));
 109                         }
 110                         return true;
 111                 }
 112                 if (regExp_chl.lastIndexIn(text) >= 0)
 113                 {
 114                         quint32 tmp;
 115                         if (MUtils::regexp_parse_uint32(regExp_chl, tmp))
 116                         {
 117                                 info->setAudioChannels(tmp);
 118                                 emit statusUpdated(qMin(progress += 25, 100));
 119                         }
 120                         return true;
 121                 }
 122                 return false;
 123         });
 124
 125         return (result == RESULT_SUCCESS);
 126 }