src/Encoder_FLAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 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, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Encoder_FLAC.h"
  24
  25 #include "Global.h"
  26 #include "Model_Settings.h"
  27
  28 #include <QProcess>
  29 #include <QDir>
  30
  31 ///////////////////////////////////////////////////////////////////////////////
  32 // Encoder Info
  33 ///////////////////////////////////////////////////////////////////////////////
  34
  35 class FLACEncoderInfo : public AbstractEncoderInfo
  36 {
  37 public:
  38         virtual bool isModeSupported(int mode) const
  39         {
  40                 switch(mode)
  41                 {
  42                 case SettingsModel::VBRMode:
  43                         return true;
  44                         break;
  45                 case SettingsModel::ABRMode:
  46                 case SettingsModel::CBRMode:
  47                         return false;
  48                         break;
  49                 default:
  50                         THROW("Bad RC mode specified!");
  51                 }
  52         }
  53
  54         virtual int valueCount(int mode) const
  55         {
  56                 switch(mode)
  57                 {
  58                 case SettingsModel::VBRMode:
  59                         return 9;
  60                         break;
  61                 case SettingsModel::ABRMode:
  62                 case SettingsModel::CBRMode:
  63                         return 0;
  64                         break;
  65                 default:
  66                         THROW("Bad RC mode specified!");
  67                 }
  68         }
  69
  70         virtual int valueAt(int mode, int index) const
  71         {
  72                 switch(mode)
  73                 {
  74                 case SettingsModel::VBRMode:
  75                         return qBound(0, index, 8);
  76                         break;
  77                 case SettingsModel::ABRMode:
  78                 case SettingsModel::CBRMode:
  79                         return -1;
  80                         break;
  81                 default:
  82                         THROW("Bad RC mode specified!");
  83                 }
  84         }
  85
  86         virtual int valueType(int mode) const
  87         {
  88                 switch(mode)
  89                 {
  90                 case SettingsModel::VBRMode:
  91                         return TYPE_COMPRESSION_LEVEL;
  92                         break;
  93                 case SettingsModel::ABRMode:
  94                 case SettingsModel::CBRMode:
  95                         return -1;
  96                 default:
  97                         THROW("Bad RC mode specified!");
  98                 }
  99         }
 100
 101         virtual const char *description(void) const
 102         {
 103                 static const char* s_description = "Free Lossless Audio Codec (FLAC)";
 104                 return s_description;
 105         }
 106 }
 107 static const g_flacEncoderInfo;
 108
 109 ///////////////////////////////////////////////////////////////////////////////
 110 // Encoder implementation
 111 ///////////////////////////////////////////////////////////////////////////////
 112
 113 FLACEncoder::FLACEncoder(void)
 114 :
 115         m_binary(lamexp_lookup_tool("flac.exe"))
 116 {
 117         if(m_binary.isEmpty())
 118         {
 119                 THROW("Error initializing FLAC encoder. Tool 'flac.exe' is not registred!");
 120         }
 121 }
 122
 123 FLACEncoder::~FLACEncoder(void)
 124 {
 125 }
 126
 127 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag)
 128 {
 129         QProcess process;
 130         QStringList args;
 131
 132         args << QString("-%1").arg(QString::number(qBound(0, m_configBitrate, 8)));
 133         args << "--channel-map=none";
 134
 135         if(!metaInfo.title().isEmpty()) args << "-T" << QString("title=%1").arg(cleanTag(metaInfo.title()));
 136         if(!metaInfo.artist().isEmpty()) args << "-T" << QString("artist=%1").arg(cleanTag(metaInfo.artist()));
 137         if(!metaInfo.album().isEmpty()) args << "-T" << QString("album=%1").arg(cleanTag(metaInfo.album()));
 138         if(!metaInfo.genre().isEmpty()) args << "-T" << QString("genre=%1").arg(cleanTag(metaInfo.genre()));
 139         if(!metaInfo.comment().isEmpty()) args << "-T" << QString("comment=%1").arg(cleanTag(metaInfo.comment()));
 140         if(metaInfo.year()) args << "-T" << QString("date=%1").arg(QString::number(metaInfo.year()));
 141         if(metaInfo.position()) args << "-T" << QString("track=%1").arg(QString::number(metaInfo.position()));
 142         if(!metaInfo.cover().isEmpty()) args << QString("--picture=%1").arg(metaInfo.cover());
 143
 144         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
 145
 146         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
 147
 148         args << "-f" << "-o" << QDir::toNativeSeparators(outputFile);
 149         args << QDir::toNativeSeparators(sourceFile);
 150
 151         if(!startProcess(process, m_binary, args))
 152         {
 153                 return false;
 154         }
 155
 156         bool bTimeout = false;
 157         bool bAborted = false;
 158         int prevProgress = -1;
 159
 160         QRegExp regExp("\\b(\\d+)% complete");
 161
 162         while(process.state() != QProcess::NotRunning)
 163         {
 164                 if(*abortFlag)
 165                 {
 166                         process.kill();
 167                         bAborted = true;
 168                         emit messageLogged("\nABORTED BY USER !!!");
 169                         break;
 170                 }
 171                 process.waitForReadyRead(m_processTimeoutInterval);
 172                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 173                 {
 174                         process.kill();
 175                         qWarning("FLAC process timed out <-- killing!");
 176                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 177                         bTimeout = true;
 178                         break;
 179                 }
 180                 while(process.bytesAvailable() > 0)
 181                 {
 182                         QByteArray line = process.readLine().replace('\b', char(0x20));
 183                         QString text = QString::fromUtf8(line.constData()).simplified();
 184                         if(regExp.lastIndexIn(text) >= 0)
 185                         {
 186                                 bool ok = false;
 187                                 int progress = regExp.cap(1).toInt(&ok);
 188                                 if(ok && (progress > prevProgress))
 189                                 {
 190                                         emit statusUpdated(progress);
 191                                         prevProgress = qMin(progress + 2, 99);
 192                                 }
 193                         }
 194                         else if(!text.isEmpty())
 195                         {
 196                                 emit messageLogged(text);
 197                         }
 198                 }
 199         }
 200
 201         process.waitForFinished();
 202         if(process.state() != QProcess::NotRunning)
 203         {
 204                 process.kill();
 205                 process.waitForFinished(-1);
 206         }
 207
 208         emit statusUpdated(100);
 209         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 210
 211         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 212         {
 213                 return false;
 214         }
 215
 216         return true;
 217 }
 218
 219 QString FLACEncoder::extension(void)
 220 {
 221         return "flac";
 222 }
 223
 224 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 225 {
 226         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 227         {
 228                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 229                 {
 230                         return true;
 231                 }
 232         }
 233
 234         return false;
 235 }
 236
 237 const unsigned int *FLACEncoder::supportedChannelCount(void)
 238 {
 239         static const unsigned int supportedChannels[] = {2, 4, 5, 6, 7, 8, NULL};
 240         return supportedChannels;
 241 }
 242
 243 const unsigned int *FLACEncoder::supportedBitdepths(void)
 244 {
 245         static const unsigned int supportedBPS[] = {16, 24, NULL};
 246         return supportedBPS;
 247 }
 248
 249 const AbstractEncoderInfo *FLACEncoder::getEncoderInfo(void)
 250 {
 251         return &g_flacEncoderInfo;
 252 }