src/Encoder_FLAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 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 "Encoder_FLAC.h"
  23
  24 #include "Global.h"
  25 #include "Model_Settings.h"
  26
  27 #include <QProcess>
  28 #include <QDir>
  29
  30 #define max(a,b) (((a) > (b)) ? (a) : (b))
  31 #define min(a,b) (((a) < (b)) ? (a) : (b))
  32
  33 FLACEncoder::FLACEncoder(void)
  34 :
  35         m_binary(lamexp_lookup_tool("flac.exe"))
  36 {
  37         if(m_binary.isEmpty())
  38         {
  39                 throw "Error initializing FLAC encoder. Tool 'flac.exe' is not registred!";
  40         }
  41 }
  42
  43 FLACEncoder::~FLACEncoder(void)
  44 {
  45 }
  46
  47 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
  48 {
  49         QProcess process;
  50         QStringList args;
  51
  52         args << QString("-%1").arg(QString::number(max(0, min(8, m_configBitrate))));
  53
  54         if(!metaInfo.fileName().isEmpty()) args << "-T" << QString("title=%1").arg(metaInfo.fileName());
  55         if(!metaInfo.fileArtist().isEmpty()) args << "-T" << QString("artist=%1").arg(metaInfo.fileArtist());
  56         if(!metaInfo.fileAlbum().isEmpty()) args << "-T" << QString("album=%1").arg(metaInfo.fileAlbum());
  57         if(!metaInfo.fileGenre().isEmpty()) args << "-T" << QString("genre=%1").arg(metaInfo.fileGenre());
  58         if(!metaInfo.fileComment().isEmpty()) args << "-T" << QString("comment=%1").arg(metaInfo.fileComment());
  59         if(metaInfo.fileYear()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.fileYear()));
  60         if(metaInfo.filePosition()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.filePosition()));
  61         if(!metaInfo.fileCover().isEmpty()) args << QString("--picture=%1").arg(metaInfo.fileCover());
  62
  63         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
  64
  65         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
  66
  67         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
  68         args << QDir::toNativeSeparators(sourceFile);
  69
  70         if(!startProcess(process, m_binary, args))
  71         {
  72                 return false;
  73         }
  74
  75         bool bTimeout = false;
  76         bool bAborted = false;
  77
  78         QRegExp regExp("\\s(\\d+)% complete");
  79
  80         while(process.state() != QProcess::NotRunning)
  81         {
  82                 if(*abortFlag)
  83                 {
  84                         process.kill();
  85                         bAborted = true;
  86                         emit messageLogged("\nABORTED BY USER !!!");
  87                         break;
  88                 }
  89                 process.waitForReadyRead(m_processTimeoutInterval);
  90                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  91                 {
  92                         process.kill();
  93                         qWarning("FLAC process timed out <-- killing!");
  94                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  95                         bTimeout = true;
  96                         break;
  97                 }
  98                 while(process.bytesAvailable() > 0)
  99                 {
 100                         QByteArray line = process.readLine();
 101                         QString text = QString::fromUtf8(line.constData()).simplified();
 102                         if(regExp.lastIndexIn(text) >= 0)
 103                         {
 104                                 bool ok = false;
 105                                 int progress = regExp.cap(1).toInt(&ok);
 106                                 if(ok) emit statusUpdated(progress);
 107                         }
 108                         else if(!text.isEmpty())
 109                         {
 110                                 emit messageLogged(text);
 111                         }
 112                 }
 113         }
 114
 115         process.waitForFinished();
 116         if(process.state() != QProcess::NotRunning)
 117         {
 118                 process.kill();
 119                 process.waitForFinished(-1);
 120         }
 121
 122         emit statusUpdated(100);
 123         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 124
 125         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit)
 126         {
 127                 return false;
 128         }
 129
 130         return true;
 131 }
 132
 133 QString FLACEncoder::extension(void)
 134 {
 135         return "flac";
 136 }
 137
 138 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 139 {
 140         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 141         {
 142                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 143                 {
 144                         return true;
 145                 }
 146         }
 147
 148         return false;
 149 }