src/Encoder_FLAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2010 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 #define IS_UNICODE(STR) (qstricmp(STR.toUtf8().constData(), QString::fromLocal8Bit(STR.toLocal8Bit()).toUtf8().constData()))
  33
  34 FLACEncoder::FLACEncoder(void)
  35 :
  36         m_binary(lamexp_lookup_tool("flac.exe"))
  37 {
  38         if(m_binary.isEmpty())
  39         {
  40                 throw "Error initializing FLAC encoder. Tool 'flac.exe' is not registred!";
  41         }
  42 }
  43
  44 FLACEncoder::~FLACEncoder(void)
  45 {
  46 }
  47
  48 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
  49 {
  50         QProcess process;
  51         QStringList args;
  52
  53         args << QString("-%1").arg(QString::number(max(0, min(8, m_configBitrate))));
  54         qWarning("Year: %u", metaInfo.fileYear());
  55
  56         if(!metaInfo.fileName().isEmpty()) args << "-T" << QString("title=%1").arg(metaInfo.fileName());
  57         if(!metaInfo.fileArtist().isEmpty()) args << "-T" << QString("artist=%1").arg(metaInfo.fileArtist());
  58         if(!metaInfo.fileAlbum().isEmpty()) args << "-T" << QString("album=%1").arg(metaInfo.fileAlbum());
  59         if(!metaInfo.fileGenre().isEmpty()) args << "-T" << QString("genre=%1").arg(metaInfo.fileGenre());
  60         if(!metaInfo.fileComment().isEmpty()) args << "-T" << QString("comment=%1").arg(metaInfo.fileComment());
  61         if(metaInfo.fileYear()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.fileYear()));
  62         if(metaInfo.filePosition()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.filePosition()));
  63
  64         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
  65
  66         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
  67         args << QDir::toNativeSeparators(sourceFile);
  68
  69         if(!startProcess(process, m_binary, args))
  70         {
  71                 return false;
  72         }
  73
  74         bool bTimeout = false;
  75         bool bAborted = false;
  76
  77         QRegExp regExp("\\s(\\d+)% complete");
  78
  79         while(process.state() != QProcess::NotRunning)
  80         {
  81                 if(*abortFlag)
  82                 {
  83                         process.kill();
  84                         bAborted = true;
  85                         emit messageLogged("\nABORTED BY USER !!!");
  86                         break;
  87                 }
  88                 process.waitForReadyRead();
  89                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  90                 {
  91                         process.kill();
  92                         qWarning("FLAC process timed out <-- killing!");
  93                         bTimeout = true;
  94                         break;
  95                 }
  96                 while(process.bytesAvailable() > 0)
  97                 {
  98                         QByteArray line = process.readLine();
  99                         QString text = QString::fromUtf8(line.constData()).simplified();
 100                         if(regExp.lastIndexIn(text) >= 0)
 101                         {
 102                                 bool ok = false;
 103                                 int progress = regExp.cap(1).toInt(&ok);
 104                                 if(ok) emit statusUpdated(progress);
 105                         }
 106                         else if(!text.isEmpty())
 107                         {
 108                                 emit messageLogged(text);
 109                         }
 110                 }
 111         }
 112
 113         process.waitForFinished();
 114         if(process.state() != QProcess::NotRunning)
 115         {
 116                 process.kill();
 117                 process.waitForFinished(-1);
 118         }
 119
 120         emit statusUpdated(100);
 121         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 122
 123         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit)
 124         {
 125                 return false;
 126         }
 127
 128         return true;
 129 }
 130
 131 QString FLACEncoder::extension(void)
 132 {
 133         return "flac";
 134 }
 135
 136 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 137 {
 138         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 139         {
 140                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 141                 {
 142                         return true;
 143                 }
 144         }
 145
 146         return false;
 147 }