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 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
  51         if(!metaInfo.fileName().isEmpty()) args << "-T" << QString("title=%1").arg(metaInfo.fileName());
  52         if(!metaInfo.fileArtist().isEmpty()) args << "-T" << QString("artist=%1").arg(metaInfo.fileArtist());
  53         if(!metaInfo.fileAlbum().isEmpty()) args << "-T" << QString("album=%1").arg(metaInfo.fileAlbum());
  54         if(!metaInfo.fileGenre().isEmpty()) args << "-T" << QString("genre=%1").arg(metaInfo.fileGenre());
  55         if(!metaInfo.fileComment().isEmpty()) args << "-T" << QString("comment=%1").arg(metaInfo.fileComment());
  56         if(metaInfo.fileYear()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.fileYear()));
  57         if(metaInfo.filePosition()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.filePosition()));
  58         if(!metaInfo.fileCover().isEmpty()) args << QString("--picture=%1").arg(metaInfo.fileCover());
  59
  60         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
  61
  62         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
  63
  64         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
  65         args << QDir::toNativeSeparators(sourceFile);
  66
  67         if(!startProcess(process, m_binary, args))
  68         {
  69                 return false;
  70         }
  71
  72         bool bTimeout = false;
  73         bool bAborted = false;
  74         int prevProgress = -1;
  75
  76         QRegExp regExp("\\s(\\d+)% complete");
  77
  78         while(process.state() != QProcess::NotRunning)
  79         {
  80                 if(*abortFlag)
  81                 {
  82                         process.kill();
  83                         bAborted = true;
  84                         emit messageLogged("\nABORTED BY USER !!!");
  85                         break;
  86                 }
  87                 process.waitForReadyRead(m_processTimeoutInterval);
  88                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  89                 {
  90                         process.kill();
  91                         qWarning("FLAC process timed out <-- killing!");
  92                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  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 && (progress > prevProgress))
 105                                 {
 106                                         emit statusUpdated(progress);
 107                                         prevProgress = qMin(progress + 2, 99);
 108                                 }
 109                         }
 110                         else if(!text.isEmpty())
 111                         {
 112                                 emit messageLogged(text);
 113                         }
 114                 }
 115         }
 116
 117         process.waitForFinished();
 118         if(process.state() != QProcess::NotRunning)
 119         {
 120                 process.kill();
 121                 process.waitForFinished(-1);
 122         }
 123
 124         emit statusUpdated(100);
 125         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 126
 127         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 128         {
 129                 return false;
 130         }
 131
 132         return true;
 133 }
 134
 135 QString FLACEncoder::extension(void)
 136 {
 137         return "flac";
 138 }
 139
 140 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 141 {
 142         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 143         {
 144                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 145                 {
 146                         return true;
 147                 }
 148         }
 149
 150         return false;
 151 }