1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2018 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, but always including the *additional*
9 // restrictions defined in the "License.txt" file.
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.
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.
20 // http://www.gnu.org/licenses/gpl-2.0.txt
21 ///////////////////////////////////////////////////////////////////////////////
23 #include "Encoder_MP3.h"
26 #include "Model_Settings.h"
32 static const int g_lameAgorithmQualityLUT
[5] = {7, 5, 2, 0, INT_MAX
};
33 static const int g_mp3BitrateLUT
[15] = {32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, -1};
34 static const int g_lameVBRQualityLUT
[11] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0, INT_MAX
};
37 QMutex
MP3Encoder::m_regexMutex
;
38 MUtils::Lazy
<QRegExp
> MP3Encoder::m_regxLayer([]
40 return new QRegExp(L1S("^Layer\\s+(1|2|3)\\b"), Qt::CaseInsensitive
);
42 MUtils::Lazy
<QRegExp
> MP3Encoder::m_regxVersion([]
44 return new QRegExp(L1S("^(Version\\s+)?(1|2|2\\.5)\\b"), Qt::CaseInsensitive
);
47 ///////////////////////////////////////////////////////////////////////////////
49 ///////////////////////////////////////////////////////////////////////////////
51 class MP3EncoderInfo
: public AbstractEncoderInfo
53 virtual bool isModeSupported(int mode
) const
57 case SettingsModel::VBRMode
:
58 case SettingsModel::ABRMode
:
59 case SettingsModel::CBRMode
:
63 MUTILS_THROW("Bad RC mode specified!");
67 virtual int valueCount(int mode
) const
71 case SettingsModel::VBRMode
:
74 case SettingsModel::ABRMode
:
75 case SettingsModel::CBRMode
:
79 MUTILS_THROW("Bad RC mode specified!");
83 virtual int valueAt(int mode
, int index
) const
87 case SettingsModel::VBRMode
:
88 return g_lameVBRQualityLUT
[qBound(0, index
, 9)];
90 case SettingsModel::ABRMode
:
91 case SettingsModel::CBRMode
:
92 return g_mp3BitrateLUT
[qBound(0, index
, 13)];
95 MUTILS_THROW("Bad RC mode specified!");
99 virtual int valueType(int mode
) const
103 case SettingsModel::VBRMode
:
104 return TYPE_QUALITY_LEVEL_INT
;
106 case SettingsModel::ABRMode
:
107 return TYPE_APPROX_BITRATE
;
109 case SettingsModel::CBRMode
:
113 MUTILS_THROW("Bad RC mode specified!");
117 virtual const char *description(void) const
119 static const char* s_description
= "LAME MP3 Encoder";
120 return s_description
;
123 virtual const char *extension(void) const
125 static const char* s_extension
= "mp3";
129 virtual bool isResamplingSupported(void) const
134 static const g_mp3EncoderInfo
;
136 ///////////////////////////////////////////////////////////////////////////////
137 // Encoder implementation
138 ///////////////////////////////////////////////////////////////////////////////
140 MP3Encoder::MP3Encoder(void)
142 m_binary(lamexp_tools_lookup(L1S("lame.exe")))
144 if(m_binary
.isEmpty())
146 MUTILS_THROW("Error initializing MP3 encoder. Tool 'lame.exe' is not registred!");
149 m_algorithmQuality
= 2;
150 m_configBitrateMaximum
= 0;
151 m_configBitrateMinimum
= 0;
152 m_configSamplingRate
= 0;
153 m_configChannelMode
= 0;
156 MP3Encoder::~MP3Encoder(void)
160 bool MP3Encoder::encode(const QString
&sourceFile
, const AudioFileModel_MetaInfo
&metaInfo
, const unsigned int duration
, const unsigned int channels
, const QString
&outputFile
, QAtomicInt
&abortFlag
)
165 args
<< L1S("--nohist");
166 args
<< L1S("-q") << QString::number(g_lameAgorithmQualityLUT
[m_algorithmQuality
]);
168 switch(m_configRCMode
)
170 case SettingsModel::VBRMode
:
171 args
<< L1S("-V") << QString::number(g_lameVBRQualityLUT
[qBound(0, m_configBitrate
, 9)]);
173 case SettingsModel::ABRMode
:
174 args
<< L1S("--abr") << QString::number(g_mp3BitrateLUT
[qBound(0, m_configBitrate
, 13)]);
176 case SettingsModel::CBRMode
:
177 args
<< L1S("--cbr");
178 args
<< L1S("-b") << QString::number(g_mp3BitrateLUT
[qBound(0, m_configBitrate
, 13)]);
181 MUTILS_THROW("Bad rate-control mode!");
185 if((m_configBitrateMaximum
> 0) && (m_configBitrateMinimum
> 0) && (m_configBitrateMinimum
<= m_configBitrateMaximum
))
187 if(m_configRCMode
!= SettingsModel::CBRMode
)
189 args
<< L1S("-b") << QString::number(clipBitrate(m_configBitrateMinimum
));
190 args
<< L1S("-B") << QString::number(clipBitrate(m_configBitrateMaximum
));
194 if(m_configSamplingRate
> 0)
196 args
<< L1S("--resample") << QString::number(m_configSamplingRate
);
199 switch(m_configChannelMode
)
202 args
<< L1S("-m") << L1S("j");
205 args
<< L1S("-m") << L1S("f");
208 args
<< L1S("-m") << L1S("s");
211 args
<< L1S("-m") << L1S("d");
214 args
<< L1S("-m") << L1S("m");
218 bool bUseUCS2
= false;
220 if(isUnicode(metaInfo
.title())) bUseUCS2
= true;
221 if(isUnicode(metaInfo
.artist())) bUseUCS2
= true;
222 if(isUnicode(metaInfo
.album())) bUseUCS2
= true;
223 if(isUnicode(metaInfo
.genre())) bUseUCS2
= true;
224 if(isUnicode(metaInfo
.comment())) bUseUCS2
= true;
226 if (bUseUCS2
) args
<< L1S("--id3v2-ucs2"); //Must specify this BEFORE "--tt" and friends!
228 if(!metaInfo
.title().isEmpty()) args
<< L1S("--tt") << cleanTag(metaInfo
.title());
229 if(!metaInfo
.artist().isEmpty()) args
<< L1S("--ta") << cleanTag(metaInfo
.artist());
230 if(!metaInfo
.album().isEmpty()) args
<< L1S("--tl") << cleanTag( metaInfo
.album());
231 if(!metaInfo
.genre().isEmpty()) args
<< L1S("--tg") << cleanTag(metaInfo
.genre());
232 if(!metaInfo
.comment().isEmpty()) args
<< L1S("--tc") << cleanTag(metaInfo
.comment());
233 if(metaInfo
.year()) args
<< L1S("--ty") << QString::number(metaInfo
.year());
234 if(metaInfo
.position()) args
<< L1S("--tn") << QString::number(metaInfo
.position());
235 if(!metaInfo
.cover().isEmpty()) args
<< L1S("--ti") << QDir::toNativeSeparators(metaInfo
.cover());
237 if(!m_configCustomParams
.isEmpty()) args
<< m_configCustomParams
.split(" ", QString::SkipEmptyParts
);
239 args
<< QDir::toNativeSeparators(sourceFile
);
240 args
<< QDir::toNativeSeparators(outputFile
);
242 if(!startProcess(process
, m_binary
, args
))
247 int prevProgress
= -1;
248 QRegExp
regExp(L1S("\\(.*(\\d+)%\\)\\|"));
250 const result_t result
= awaitProcess(process
, abortFlag
, [this, &prevProgress
, ®Exp
](const QString
&text
)
252 if (regExp
.lastIndexIn(text
) >= 0)
255 if (MUtils::regexp_parse_int32(regExp
, newProgress
))
257 if (newProgress
> prevProgress
)
259 emit
statusUpdated(newProgress
);
260 prevProgress
= NEXT_PROGRESS(newProgress
);
268 return (result
== RESULT_SUCCESS
);
271 bool MP3Encoder::isFormatSupported(const QString
&containerType
, const QString
&containerProfile
, const QString
&formatType
, const QString
&formatProfile
, const QString
&formatVersion
)
273 if(containerType
.compare(L1S("Wave"), Qt::CaseInsensitive
) == 0)
275 if(formatType
.compare(L1S("PCM"), Qt::CaseInsensitive
) == 0)
281 static const QLatin1String
mpegAudio("MPEG Audio"), waveAudio("Wave"), pcmFormat("PCM");
282 if ((containerType
.compare(mpegAudio
, Qt::CaseInsensitive
) == 0) || (containerType
.compare(waveAudio
, Qt::CaseInsensitive
) == 0))
284 if (formatType
.compare(pcmFormat
, Qt::CaseInsensitive
) == 0)
288 else if (formatType
.compare(mpegAudio
, Qt::CaseInsensitive
) == 0)
290 QMutexLocker
lock(&m_regexMutex
);
291 if (m_regxLayer
->indexIn(formatProfile
) >= 0)
293 return (m_regxVersion
->indexIn(formatVersion
) >= 0);
301 const unsigned int *MP3Encoder::supportedChannelCount(void)
303 static const unsigned int supportedChannels
[] = {1, 2, NULL
};
304 return supportedChannels
;
307 void MP3Encoder::setAlgoQuality(int value
)
309 m_algorithmQuality
= qBound(0, value
, 3);
312 void MP3Encoder::setBitrateLimits(int minimumBitrate
, int maximumBitrate
)
314 m_configBitrateMinimum
= minimumBitrate
;
315 m_configBitrateMaximum
= maximumBitrate
;
318 void MP3Encoder::setChannelMode(int value
)
320 m_configChannelMode
= value
;
323 int MP3Encoder::clipBitrate(int bitrate
)
325 int targetBitrate
= qMin(qMax(bitrate
, 32), 320);
327 int minDiff
= INT_MAX
;
330 for(int i
= 0; g_mp3BitrateLUT
[i
] > 0; i
++)
332 int currentDiff
= abs(targetBitrate
- g_mp3BitrateLUT
[i
]);
333 if(currentDiff
< minDiff
)
335 minDiff
= currentDiff
;
342 return g_mp3BitrateLUT
[minIndx
];
345 return targetBitrate
;
348 const AbstractEncoderInfo
*MP3Encoder::getEncoderInfo(void)
350 return &g_mp3EncoderInfo
;