src/Encoder_FLAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2013 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 ///////////////////////////////////////////////////////////////////////////////
  31 // Encoder Info
  32 ///////////////////////////////////////////////////////////////////////////////
  33
  34 class FLACEncoderInfo : public AbstractEncoderInfo
  35 {
  36 public:
  37         virtual bool isModeSupported(int mode) const
  38         {
  39                 switch(mode)
  40                 {
  41                 case SettingsModel::VBRMode:
  42                         return true;
  43                         break;
  44                 case SettingsModel::ABRMode:
  45                 case SettingsModel::CBRMode:
  46                         return false;
  47                         break;
  48                 default:
  49                         throw "Bad RC mode specified!";
  50                 }
  51         }
  52
  53         virtual int valueCount(int mode) const
  54         {
  55                 switch(mode)
  56                 {
  57                 case SettingsModel::VBRMode:
  58                         return 9;
  59                         break;
  60                 case SettingsModel::ABRMode:
  61                 case SettingsModel::CBRMode:
  62                         return 0;
  63                         break;
  64                 default:
  65                         throw "Bad RC mode specified!";
  66                 }
  67         }
  68
  69         virtual int valueAt(int mode, int index) const
  70         {
  71                 switch(mode)
  72                 {
  73                 case SettingsModel::VBRMode:
  74                         return qBound(0, index, 8);
  75                         break;
  76                 case SettingsModel::ABRMode:
  77                 case SettingsModel::CBRMode:
  78                         return -1;
  79                         break;
  80                 default:
  81                         throw "Bad RC mode specified!";
  82                 }
  83         }
  84
  85         virtual int valueType(int mode) const
  86         {
  87                 switch(mode)
  88                 {
  89                 case SettingsModel::VBRMode:
  90                         return TYPE_COMPRESSION_LEVEL;
  91                         break;
  92                 case SettingsModel::ABRMode:
  93                 case SettingsModel::CBRMode:
  94                         return -1;
  95                 default:
  96                         throw "Bad RC mode specified!";
  97                 }
  98         }
  99
 100         virtual const char *description(void) const
 101         {
 102                 static const char* s_description = "Free Lossless Audio Codec (FLAC)";
 103                 return s_description;
 104         }
 105 }
 106 static const g_flacEncoderInfo;
 107
 108 ///////////////////////////////////////////////////////////////////////////////
 109 // Encoder implementation
 110 ///////////////////////////////////////////////////////////////////////////////
 111
 112 FLACEncoder::FLACEncoder(void)
 113 :
 114         m_binary(lamexp_lookup_tool("flac.exe"))
 115 {
 116         if(m_binary.isEmpty())
 117         {
 118                 throw "Error initializing FLAC encoder. Tool 'flac.exe' is not registred!";
 119         }
 120 }
 121
 122 FLACEncoder::~FLACEncoder(void)
 123 {
 124 }
 125
 126 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
 127 {
 128         QProcess process;
 129         QStringList args;
 130
 131         args << QString("-%1").arg(QString::number(qBound(0, m_configBitrate, 8)));
 132         args << "--channel-map=none";
 133
 134         if(!metaInfo.fileName().isEmpty()) args << "-T" << QString("title=%1").arg(cleanTag(metaInfo.fileName()));
 135         if(!metaInfo.fileArtist().isEmpty()) args << "-T" << QString("artist=%1").arg(cleanTag(metaInfo.fileArtist()));
 136         if(!metaInfo.fileAlbum().isEmpty()) args << "-T" << QString("album=%1").arg(cleanTag(metaInfo.fileAlbum()));
 137         if(!metaInfo.fileGenre().isEmpty()) args << "-T" << QString("genre=%1").arg(cleanTag(metaInfo.fileGenre()));
 138         if(!metaInfo.fileComment().isEmpty()) args << "-T" << QString("comment=%1").arg(cleanTag(metaInfo.fileComment()));
 139         if(metaInfo.fileYear()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.fileYear()));
 140         if(metaInfo.filePosition()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.filePosition()));
 141         if(!metaInfo.fileCover().isEmpty()) args << QString("--picture=%1").arg(metaInfo.fileCover());
 142
 143         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
 144
 145         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
 146
 147         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
 148         args << QDir::toNativeSeparators(sourceFile);
 149
 150         if(!startProcess(process, m_binary, args))
 151         {
 152                 return false;
 153         }
 154
 155         bool bTimeout = false;
 156         bool bAborted = false;
 157         int prevProgress = -1;
 158
 159         QRegExp regExp("\\b(\\d+)% complete");
 160
 161         while(process.state() != QProcess::NotRunning)
 162         {
 163                 if(*abortFlag)
 164                 {
 165                         process.kill();
 166                         bAborted = true;
 167                         emit messageLogged("\nABORTED BY USER !!!");
 168                         break;
 169                 }
 170                 process.waitForReadyRead(m_processTimeoutInterval);
 171                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 172                 {
 173                         process.kill();
 174                         qWarning("FLAC process timed out <-- killing!");
 175                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 176                         bTimeout = true;
 177                         break;
 178                 }
 179                 while(process.bytesAvailable() > 0)
 180                 {
 181                         QByteArray line = process.readLine().replace('\b', char(0x20));
 182                         QString text = QString::fromUtf8(line.constData()).simplified();
 183                         if(regExp.lastIndexIn(text) >= 0)
 184                         {
 185                                 bool ok = false;
 186                                 int progress = regExp.cap(1).toInt(&ok);
 187                                 if(ok && (progress > prevProgress))
 188                                 {
 189                                         emit statusUpdated(progress);
 190                                         prevProgress = qMin(progress + 2, 99);
 191                                 }
 192                         }
 193                         else if(!text.isEmpty())
 194                         {
 195                                 emit messageLogged(text);
 196                         }
 197                 }
 198         }
 199
 200         process.waitForFinished();
 201         if(process.state() != QProcess::NotRunning)
 202         {
 203                 process.kill();
 204                 process.waitForFinished(-1);
 205         }
 206
 207         emit statusUpdated(100);
 208         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 209
 210         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 211         {
 212                 return false;
 213         }
 214
 215         return true;
 216 }
 217
 218 QString FLACEncoder::extension(void)
 219 {
 220         return "flac";
 221 }
 222
 223 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 224 {
 225         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 226         {
 227                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 228                 {
 229                         return true;
 230                 }
 231         }
 232
 233         return false;
 234 }
 235
 236 const unsigned int *FLACEncoder::supportedChannelCount(void)
 237 {
 238         static const unsigned int supportedChannels[] = {2, 4, 5, 6, 7, 8, NULL};
 239         return supportedChannels;
 240 }
 241
 242 const unsigned int *FLACEncoder::supportedBitdepths(void)
 243 {
 244         static const unsigned int supportedBPS[] = {16, 24, NULL};
 245         return supportedBPS;
 246 }
 247
 248 const AbstractEncoderInfo *FLACEncoder::getEncoderInfo(void)
 249 {
 250         return &g_flacEncoderInfo;
 251 }