src/Encoder_FLAC.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2016 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                         MUTILS_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                         MUTILS_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                         MUTILS_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                         MUTILS_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         virtual const char *extension(void) const
 108         {
 109                 static const char* s_extension = "flac";
 110                 return s_extension;
 111         }
 112
 113         virtual bool isResamplingSupported(void) const
 114         {
 115                 return false;
 116         }
 117 }
 118 static const g_flacEncoderInfo;
 119
 120 ///////////////////////////////////////////////////////////////////////////////
 121 // Encoder implementation
 122 ///////////////////////////////////////////////////////////////////////////////
 123
 124 FLACEncoder::FLACEncoder(void)
 125 :
 126         m_binary(lamexp_tools_lookup(L1S("flac.exe")))
 127 {
 128         if(m_binary.isEmpty())
 129         {
 130                 MUTILS_THROW("Error initializing FLAC encoder. Tool 'flac.exe' is not registred!");
 131         }
 132 }
 133
 134 FLACEncoder::~FLACEncoder(void)
 135 {
 136 }
 137
 138 bool FLACEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag)
 139 {
 140         QProcess process;
 141         QStringList args;
 142
 143         args << QString("-%1").arg(QString::number(qBound(0, m_configBitrate, 8)));
 144         args << L1S("--channel-map=none");
 145
 146         if(!metaInfo.title().isEmpty())   args << L1S("-T") << QString("title=%1").arg(cleanTag(metaInfo.title()));
 147         if(!metaInfo.artist().isEmpty())  args << L1S("-T") << QString("artist=%1").arg(cleanTag(metaInfo.artist()));
 148         if(!metaInfo.album().isEmpty())   args << L1S("-T") << QString("album=%1").arg(cleanTag(metaInfo.album()));
 149         if(!metaInfo.genre().isEmpty())   args << L1S("-T") << QString("genre=%1").arg(cleanTag(metaInfo.genre()));
 150         if(!metaInfo.comment().isEmpty()) args << L1S("-T") << QString("comment=%1").arg(cleanTag(metaInfo.comment()));
 151         if(metaInfo.year())               args << L1S("-T") << QString("date=%1").arg(QString::number(metaInfo.year()));
 152         if(metaInfo.position())           args << L1S("-T") << QString("track=%1").arg(QString::number(metaInfo.position()));
 153         if(!metaInfo.cover().isEmpty())   args << QString("--picture=%1").arg(metaInfo.cover());
 154
 155         //args << "--tv" << QString().sprintf("Encoder=LameXP v%d.%02d.%04d [%s]", lamexp_version_major(), lamexp_version_minor(), lamexp_version_build(), lamexp_version_release());
 156
 157         if(!m_configCustomParams.isEmpty()) args << m_configCustomParams.split(" ", QString::SkipEmptyParts);
 158
 159         args << L1S("-f") << L1S("-o") << QDir::toNativeSeparators(outputFile);
 160         args << QDir::toNativeSeparators(sourceFile);
 161
 162         if(!startProcess(process, m_binary, args))
 163         {
 164                 return false;
 165         }
 166
 167         bool bTimeout = false;
 168         bool bAborted = false;
 169         int prevProgress = -1;
 170
 171         QRegExp regExp(L1S("\\b(\\d+)% complete"));
 172
 173         while(process.state() != QProcess::NotRunning)
 174         {
 175                 if(*abortFlag)
 176                 {
 177                         process.kill();
 178                         bAborted = true;
 179                         emit messageLogged(L1S("\nABORTED BY USER !!!"));
 180                         break;
 181                 }
 182                 process.waitForReadyRead(m_processTimeoutInterval);
 183                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 184                 {
 185                         process.kill();
 186                         qWarning("FLAC process timed out <-- killing!");
 187                         emit messageLogged(L1S("\nPROCESS TIMEOUT !!!"));
 188                         bTimeout = true;
 189                         break;
 190                 }
 191                 while(process.bytesAvailable() > 0)
 192                 {
 193                         QByteArray line = process.readLine().replace('\b', char(0x20));
 194                         QString text = QString::fromUtf8(line.constData()).simplified();
 195                         if(regExp.lastIndexIn(text) >= 0)
 196                         {
 197                                 bool ok = false;
 198                                 int progress = regExp.cap(1).toInt(&ok);
 199                                 if(ok && (progress > prevProgress))
 200                                 {
 201                                         emit statusUpdated(progress);
 202                                         prevProgress = qMin(progress + 2, 99);
 203                                 }
 204                         }
 205                         else if(!text.isEmpty())
 206                         {
 207                                 emit messageLogged(text);
 208                         }
 209                 }
 210         }
 211
 212         process.waitForFinished();
 213         if(process.state() != QProcess::NotRunning)
 214         {
 215                 process.kill();
 216                 process.waitForFinished(-1);
 217         }
 218
 219         emit statusUpdated(100);
 220         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 221
 222         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 223         {
 224                 return false;
 225         }
 226
 227         return true;
 228 }
 229
 230 bool FLACEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 231 {
 232         if(containerType.compare(L1S("Wave"), Qt::CaseInsensitive) == 0)
 233         {
 234                 if(formatType.compare(L1S("PCM"), Qt::CaseInsensitive) == 0)
 235                 {
 236                         return true;
 237                 }
 238         }
 239
 240         return false;
 241 }
 242
 243 const unsigned int *FLACEncoder::supportedChannelCount(void)
 244 {
 245         static const unsigned int supportedChannels[] = {2, 4, 5, 6, 7, 8, NULL};
 246         return supportedChannels;
 247 }
 248
 249 const unsigned int *FLACEncoder::supportedBitdepths(void)
 250 {
 251         static const unsigned int supportedBPS[] = {16, 24, NULL};
 252         return supportedBPS;
 253 }
 254
 255 const AbstractEncoderInfo *FLACEncoder::getEncoderInfo(void)
 256 {
 257         return &g_flacEncoderInfo;
 258 }