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();
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;