src/Encoder_Vorbis.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_Vorbis.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 VorbisEncoder::VorbisEncoder(void)
  34 :
  35         m_binary(lamexp_lookup_tool("oggenc2.exe"))
  36 {
  37         if(m_binary.isEmpty())
  38         {
  39                 throw "Error initializing Vorbis encoder. Tool 'oggenc2.exe' is not registred!";
  40         }
  41
  42         m_configBitrateMaximum = 0;
  43         m_configBitrateMinimum = 0;
  44         m_configSamplingRate = 0;
  45 }
  46
  47 VorbisEncoder::~VorbisEncoder(void)
  48 {
  49 }
  50
  51 bool VorbisEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
  52 {
  53         QProcess process;
  54         QStringList args;
  55         const QString baseName = QFileInfo(outputFile).fileName();
  56
  57         switch(m_configRCMode)
  58         {
  59         case SettingsModel::VBRMode:
  60                 args << "-q" << QString::number(max(-2, min(10, m_configBitrate)));
  61                 break;
  62         case SettingsModel::ABRMode:
  63                 args << "-b" << QString::number(max(32, min(500, (m_configBitrate * 8))));
  64                 break;
  65         default:
  66                 throw "Bad rate-control mode!";
  67                 break;
  68         }
  69
  70         if((m_configBitrateMaximum > 0) && (m_configBitrateMinimum > 0) && (m_configBitrateMinimum <= m_configBitrateMaximum))
  71         {
  72                 args << "--min-bitrate" << QString::number(min(max(m_configBitrateMinimum, 32), 500));
  73                 args << "--max-bitrate" << QString::number(min(max(m_configBitrateMaximum, 32), 500));
  74         }
  75
  76         if(m_configSamplingRate > 0)
  77         {
  78                 args << "--resample" << QString::number(m_configSamplingRate) << "--converter" << QString::number(0);
  79         }
  80
  81         if(!metaInfo.fileName().isEmpty()) args << "-t" << metaInfo.fileName();
  82         if(!metaInfo.fileArtist().isEmpty()) args << "-a" << metaInfo.fileArtist();
  83         if(!metaInfo.fileAlbum().isEmpty()) args << "-l" << metaInfo.fileAlbum();
  84         if(!metaInfo.fileGenre().isEmpty()) args << "-G" << metaInfo.fileGenre();
  85         if(!metaInfo.fileComment().isEmpty()) args << "-c" << QString("comment=%1").arg(metaInfo.fileComment());
  86         if(metaInfo.fileYear()) args << "-d" << QString::number(metaInfo.fileYear());
  87         if(metaInfo.filePosition()) args << "-N" << QString::number(metaInfo.filePosition());
  88
  89         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
  90
  91         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
  92
  93         args << "-o" << QDir::toNativeSeparators(outputFile);
  94         args << QDir::toNativeSeparators(sourceFile);
  95
  96         if(!startProcess(process, m_binary, args))
  97         {
  98                 return false;
  99         }
 100
 101         bool bTimeout = false;
 102         bool bAborted = false;
 103
 104         QRegExp regExp("\\[.*(\\d+)[.,](\\d+)%\\]");
 105
 106         while(process.state() != QProcess::NotRunning)
 107         {
 108                 if(*abortFlag)
 109                 {
 110                         process.kill();
 111                         bAborted = true;
 112                         emit messageLogged("\nABORTED BY USER !!!");
 113                         break;
 114                 }
 115                 process.waitForReadyRead(m_processTimeoutInterval);
 116                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 117                 {
 118                         process.kill();
 119                         qWarning("OggEnc process timed out <-- killing!");
 120                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 121                         bTimeout = true;
 122                         break;
 123                 }
 124                 while(process.bytesAvailable() > 0)
 125                 {
 126                         QByteArray line = process.readLine();
 127                         QString text = QString::fromUtf8(line.constData()).simplified();
 128                         if(regExp.lastIndexIn(text) >= 0)
 129                         {
 130                                 bool ok = false;
 131                                 int progress = regExp.cap(1).toInt(&ok);
 132                                 if(ok) emit statusUpdated(progress);
 133                         }
 134                         else if(!text.isEmpty())
 135                         {
 136                                 emit messageLogged(text);
 137                         }
 138                 }
 139         }
 140
 141         process.waitForFinished();
 142         if(process.state() != QProcess::NotRunning)
 143         {
 144                 process.kill();
 145                 process.waitForFinished(-1);
 146         }
 147
 148         emit statusUpdated(100);
 149         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 150
 151         if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit)
 152         {
 153                 return false;
 154         }
 155
 156         return true;
 157 }
 158
 159 QString VorbisEncoder::extension(void)
 160 {
 161         return "ogg";
 162 }
 163
 164 bool VorbisEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 165 {
 166         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 167         {
 168                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 169                 {
 170                         return true;
 171                 }
 172         }
 173         else if(containerType.compare("FLAC", Qt::CaseInsensitive) == 0)
 174         {
 175                 if(formatType.compare("FLAC", Qt::CaseInsensitive) == 0)
 176                 {
 177                         return true;
 178                 }
 179         }
 180
 181         return false;
 182 }
 183
 184 void VorbisEncoder::setBitrateLimits(int minimumBitrate, int maximumBitrate)
 185 {
 186         m_configBitrateMinimum = minimumBitrate;
 187         m_configBitrateMaximum = maximumBitrate;
 188 }
 189
 190 void VorbisEncoder::setSamplingRate(int value)
 191 {
 192         m_configSamplingRate = value;
 193 }