src/Encoder_FLAC.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 "Encoder_FLAC.h"
  23
  24 #include "Global.h"
  25 #include "Model_Settings.h"
  26
  27 #include <QProcess>
  28 #include <QDir>
  29
  30 FLACEncoder::FLACEncoder(void)
  31 :
  32         m_binary(lamexp_lookup_tool("flac.exe"))
  33 {
  34         if(m_binary.isEmpty())
  35         {
  36                 throw "Error initializing FLAC encoder. Tool 'flac.exe' is not registred!";
  37         }
  38 }
  39
  40 FLACEncoder::~FLACEncoder(void)
  41 {
  42 }
  43
  44 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
  45 {
  46         QProcess process;
  47         QStringList args;
  48
  49         args << QString("-%1").arg(QString::number(qMax(0, qMin(8, m_configBitrate))));
  50         args << "--channel-map=none";
  51
  52         if(!metaInfo.fileName().isEmpty()) args << "-T" << QString("title=%1").arg(metaInfo.fileName());
  53         if(!metaInfo.fileArtist().isEmpty()) args << "-T" << QString("artist=%1").arg(metaInfo.fileArtist());
  54         if(!metaInfo.fileAlbum().isEmpty()) args << "-T" << QString("album=%1").arg(metaInfo.fileAlbum());
  55         if(!metaInfo.fileGenre().isEmpty()) args << "-T" << QString("genre=%1").arg(metaInfo.fileGenre());
  56         if(!metaInfo.fileComment().isEmpty()) args << "-T" << QString("comment=%1").arg(metaInfo.fileComment());
  57         if(metaInfo.fileYear()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.fileYear()));
  58         if(metaInfo.filePosition()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.filePosition()));
  59         if(!metaInfo.fileCover().isEmpty()) args << QString("--picture=%1").arg(metaInfo.fileCover());
  60
  61         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
  62
  63         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
  64
  65         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
  66         args << QDir::toNativeSeparators(sourceFile);
  67
  68         if(!startProcess(process, m_binary, args))
  69         {
  70                 return false;
  71         }
  72
  73         bool bTimeout = false;
  74         bool bAborted = false;
  75         int prevProgress = -1;
  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(m_processTimeoutInterval);
  89                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  90                 {
  91                         process.kill();
  92                         qWarning("FLAC process timed out <-- killing!");
  93                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  94                         bTimeout = true;
  95                         break;
  96                 }
  97                 while(process.bytesAvailable() > 0)
  98                 {
  99                         QByteArray line = process.readLine();
 100                         QString text = QString::fromUtf8(line.constData()).simplified();
 101                         if(regExp.lastIndexIn(text) >= 0)
 102                         {
 103                                 bool ok = false;
 104                                 int progress = regExp.cap(1).toInt(&ok);
 105                                 if(ok && (progress > prevProgress))
 106                                 {
 107                                         emit statusUpdated(progress);
 108                                         prevProgress = qMin(progress + 2, 99);
 109                                 }
 110                         }
 111                         else if(!text.isEmpty())
 112                         {
 113                                 emit messageLogged(text);
 114                         }
 115                 }
 116         }
 117
 118         process.waitForFinished();
 119         if(process.state() != QProcess::NotRunning)
 120         {
 121                 process.kill();
 122                 process.waitForFinished(-1);
 123         }
 124
 125         emit statusUpdated(100);
 126         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 127
 128         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 129         {
 130                 return false;
 131         }
 132
 133         return true;
 134 }
 135
 136 QString FLACEncoder::extension(void)
 137 {
 138         return "flac";
 139 }
 140
 141 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 142 {
 143         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 144         {
 145                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 146                 {
 147                         return true;
 148                 }
 149         }
 150
 151         return false;
 152 }
 153
 154 const unsigned int *FLACEncoder::supportedChannelCount(void)
 155 {
 156         static const unsigned int supportedChannels[] = {2, 4, 5, 6, 7, 8, NULL};
 157         return supportedChannels;
 158 }
 159
 160 const unsigned int *FLACEncoder::supportedBitdepths(void)
 161 {
 162         static const unsigned int supportedBPS[] = {16, 24, NULL};
 163         return supportedBPS;
 164 }