1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2011 LoRd_MuldeR <MuldeR2@GMX.de>
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.
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.
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.
19 // http://www.gnu.org/licenses/gpl-2.0.txt
20 ///////////////////////////////////////////////////////////////////////////////
22 #include "Encoder_MP3.h"
25 #include "Model_Settings.h"
31 static const int g_lameAgorithmQualityLUT
[] = {9, 7, 5, 2, 0, INT_MAX
};
33 MP3Encoder::MP3Encoder(void)
35 m_binary(lamexp_lookup_tool("lame.exe"))
37 if(m_binary
.isEmpty())
39 throw "Error initializing MP3 encoder. Tool 'lame.exe' is not registred!";
42 m_algorithmQuality
= 3;
43 m_configBitrateMaximum
= 0;
44 m_configBitrateMinimum
= 0;
45 m_configSamplingRate
= 0;
46 m_configChannelMode
= 0;
49 MP3Encoder::~MP3Encoder(void)
53 bool MP3Encoder::encode(const QString
&sourceFile
, const AudioFileModel
&metaInfo
, const QString
&outputFile
, volatile bool *abortFlag
)
59 args
<< "-q" << QString::number(g_lameAgorithmQualityLUT
[m_algorithmQuality
]);
61 switch(m_configRCMode
)
63 case SettingsModel::VBRMode
:
64 args
<< "-V" << QString::number(9 - min(9, m_configBitrate
));
66 case SettingsModel::ABRMode
:
67 args
<< "--abr" << QString::number(SettingsModel::mp3Bitrates
[max(0, min(13, m_configBitrate
))]);
69 case SettingsModel::CBRMode
:
71 args
<< "-b" << QString::number(SettingsModel::mp3Bitrates
[max(0, min(13, m_configBitrate
))]);
74 throw "Bad rate-control mode!";
78 if((m_configBitrateMaximum
> 0) && (m_configBitrateMinimum
> 0) && (m_configBitrateMinimum
<= m_configBitrateMaximum
))
80 if(m_configRCMode
!= SettingsModel::CBRMode
)
82 args
<< "-b" << QString::number(clipBitrate(m_configBitrateMinimum
));
83 args
<< "-B" << QString::number(clipBitrate(m_configBitrateMaximum
));
87 if(m_configSamplingRate
> 0)
89 args
<< "--resample" << QString::number(m_configSamplingRate
);
92 switch(m_configChannelMode
)
111 bool bUseUCS2
= false;
113 if(!metaInfo
.fileName().isEmpty() && isUnicode(metaInfo
.fileName())) bUseUCS2
= true;
114 if(!metaInfo
.fileArtist().isEmpty() && isUnicode(metaInfo
.fileArtist())) bUseUCS2
= true;
115 if(!metaInfo
.fileAlbum().isEmpty() && isUnicode(metaInfo
.fileAlbum())) bUseUCS2
= true;
116 if(!metaInfo
.fileGenre().isEmpty() && isUnicode(metaInfo
.fileGenre())) bUseUCS2
= true;
117 if(!metaInfo
.fileComment().isEmpty() && isUnicode(metaInfo
.fileComment())) bUseUCS2
= true;
119 if(bUseUCS2
) args
<< "--id3v2-ucs2"; //Must specify this BEFORE "--tt" and friends!
121 if(!metaInfo
.fileName().isEmpty()) args
<< "--tt" << metaInfo
.fileName();
122 if(!metaInfo
.fileArtist().isEmpty()) args
<< "--ta" << metaInfo
.fileArtist();
123 if(!metaInfo
.fileAlbum().isEmpty()) args
<< "--tl" << metaInfo
.fileAlbum();
124 if(!metaInfo
.fileGenre().isEmpty()) args
<< "--tg" << metaInfo
.fileGenre();
125 if(!metaInfo
.fileComment().isEmpty()) args
<< "--tc" << metaInfo
.fileComment();
126 if(metaInfo
.fileYear()) args
<< "--ty" << QString::number(metaInfo
.fileYear());
127 if(metaInfo
.filePosition()) args
<< "--tn" << QString::number(metaInfo
.filePosition());
128 if(!metaInfo
.fileCover().isEmpty()) args
<< "--ti" << QDir::toNativeSeparators(metaInfo
.fileCover());
130 if(!m_configCustomParams
.isEmpty()) args
<< m_configCustomParams
.split(" ", QString::SkipEmptyParts
);
132 args
<< QDir::toNativeSeparators(sourceFile
);
133 args
<< QDir::toNativeSeparators(outputFile
);
135 if(!startProcess(process
, m_binary
, args
))
140 bool bTimeout
= false;
141 bool bAborted
= false;
143 QRegExp
regExp("\\(.*(\\d+)%\\)\\|");
145 while(process
.state() != QProcess::NotRunning
)
151 emit
messageLogged("\nABORTED BY USER !!!");
154 process
.waitForReadyRead(m_processTimeoutInterval
);
155 if(!process
.bytesAvailable() && process
.state() == QProcess::Running
)
158 qWarning("LAME process timed out <-- killing!");
159 emit
messageLogged("\nPROCESS TIMEOUT !!!");
163 while(process
.bytesAvailable() > 0)
165 QByteArray line
= process
.readLine();
166 QString text
= QString::fromUtf8(line
.constData()).simplified();
167 if(regExp
.lastIndexIn(text
) >= 0)
170 int progress
= regExp
.cap(1).toInt(&ok
);
171 if(ok
) emit
statusUpdated(progress
);
173 else if(!text
.isEmpty())
175 emit
messageLogged(text
);
180 process
.waitForFinished();
181 if(process
.state() != QProcess::NotRunning
)
184 process
.waitForFinished(-1);
187 emit
statusUpdated(100);
188 emit
messageLogged(QString().sprintf("\nExited with code: 0x%04X", process
.exitCode()));
190 if(bTimeout
|| bAborted
|| process
.exitStatus() != QProcess::NormalExit
)
198 QString
MP3Encoder::extension(void)
203 bool MP3Encoder::isFormatSupported(const QString
&containerType
, const QString
&containerProfile
, const QString
&formatType
, const QString
&formatProfile
, const QString
&formatVersion
)
205 if(containerType
.compare("Wave", Qt::CaseInsensitive
) == 0)
207 if(formatType
.compare("PCM", Qt::CaseInsensitive
) == 0)
212 else if(containerType
.compare("MPEG Audio", Qt::CaseInsensitive
) == 0)
214 if(formatType
.compare("MPEG Audio", Qt::CaseInsensitive
) == 0)
216 if(formatProfile
.compare("Layer 3", Qt::CaseInsensitive
) == 0 || formatProfile
.compare("Layer 2", Qt::CaseInsensitive
) == 0)
218 if(formatVersion
.compare("Version 1", Qt::CaseInsensitive
) == 0 || formatVersion
.compare("Version 2", Qt::CaseInsensitive
) == 0)
229 bool MP3Encoder::requiresDownmix(void)
234 void MP3Encoder::setAlgoQuality(int value
)
236 m_algorithmQuality
= value
;
239 void MP3Encoder::setBitrateLimits(int minimumBitrate
, int maximumBitrate
)
241 m_configBitrateMinimum
= minimumBitrate
;
242 m_configBitrateMaximum
= maximumBitrate
;
245 void MP3Encoder::setSamplingRate(int value
)
247 m_configSamplingRate
= value
;
250 void MP3Encoder::setChannelMode(int value
)
252 m_configChannelMode
= value
;
255 int MP3Encoder::clipBitrate(int bitrate
)
257 int targetBitrate
= min(max(bitrate
, 32), 320);
259 int minDiff
= INT_MAX
;
262 for(int i
= 0; SettingsModel::mp3Bitrates
[i
] > 0; i
++)
264 int currentDiff
= abs(targetBitrate
- SettingsModel::mp3Bitrates
[i
]);
265 if(currentDiff
< minDiff
)
267 minDiff
= currentDiff
;
274 return SettingsModel::mp3Bitrates
[minIndx
];
277 return targetBitrate
;