Use qMin() and qMax() instead of min() and max() macros. Also use qBound() where...
[LameXP.git] / src / Filter_Downmix.cpp
blob0784cee8d7b9ee472b7bc61c7b47e64434a4fbfc
1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2011 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.
9 //
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 "Filter_Downmix.h"
24 #include "Global.h"
26 #include <QDir>
27 #include <QProcess>
28 #include <QRegExp>
30 DownmixFilter::DownmixFilter(void)
32 m_binary(lamexp_lookup_tool("sox.exe"))
34 if(m_binary.isEmpty())
36 throw "Error initializing SoX filter. Tool 'sox.exe' is not registred!";
40 DownmixFilter::~DownmixFilter(void)
44 bool DownmixFilter::apply(const QString &sourceFile, const QString &outputFile, volatile bool *abortFlag)
46 unsigned int channels = detectChannels(sourceFile, abortFlag);
47 emit messageLogged(QString().sprintf("--> Number of channels is: %d\n", channels));
49 if((channels == 1) || (channels == 2))
51 messageLogged("Skipping downmix!");
52 qDebug("Dowmmix not required for Mono or Stereo input, skipping!");
53 return false;
56 QProcess process;
57 QStringList args;
59 process.setWorkingDirectory(QFileInfo(outputFile).canonicalPath());
61 args << "-V3" << "-S";
62 args << "--guard" << "--temp" << ".";
63 args << QDir::toNativeSeparators(sourceFile);
64 args << QDir::toNativeSeparators(outputFile);
66 switch(channels)
68 case 3: //3.0 (L/R/C)
69 args << "remix" << "1v0.66,3v0.34" << "2v0.66,3v0.34";
70 break;
71 case 4: //3.1 (L/R/C/LFE)
72 args << "remix" << "1v0.5,3v0.25,4v0.25" << "2v0.5,3v0.25,4v0.25";
73 break;
74 case 5: //5.0 (L/R/C/BL/BR)
75 args << "remix" << "1v0.5,3v0.25,4v0.25" << "2v0.5,3v0.25,5v0.25";
76 break;
77 case 6: //5.1 (L/R/C/LFE/BL/BR)
78 args << "remix" << "1v0.4,3v0.2,4v0.2,5v0.2" << "2v0.4,3v0.2,4v0.2,6v0.2";
79 break;
80 case 7: //7.0 (L/R/C/BL/BR/SL/SR)
81 args << "remix" << "1v0.4,3v0.2,4v0.2,6v0.2" << "2v0.4,3v0.2,5v0.2,7v0.2";
82 break;
83 case 8: //7.1 (L/R/C/LFE/BL/BR/SL/SR)
84 args << "remix" << "1v0.36,3v0.16,4v0.16,5v0.16,7v0.16" << "2v0.36,3v0.16,4v0.16,6v0.16,8v0.16";
85 break;
86 case 9: //8.1 (L/R/C/LFE/BL/BR/SL/SR/BC)
87 args << "remix" << "1v0.308,3v0.154,4v0.154,5v0.154,7v0.154,9v0.076" << "2v0.308,3v0.154,4v0.154,6v0.154,8v0.154,9v0.076";
88 break;
89 default: //Unknown
90 qWarning("Downmixer: Unknown channel configuration!");
91 args << "channels" << "2";
92 break;
95 if(!startProcess(process, m_binary, args))
97 return false;
100 bool bTimeout = false;
101 bool bAborted = false;
103 QRegExp regExp("In:(\\d+)(\\.\\d+)*%");
105 while(process.state() != QProcess::NotRunning)
107 if(*abortFlag)
109 process.kill();
110 bAborted = true;
111 emit messageLogged("\nABORTED BY USER !!!");
112 break;
114 process.waitForReadyRead(m_processTimeoutInterval);
115 if(!process.bytesAvailable() && process.state() == QProcess::Running)
117 process.kill();
118 qWarning("SoX process timed out <-- killing!");
119 emit messageLogged("\nPROCESS TIMEOUT !!!");
120 bTimeout = true;
121 break;
123 while(process.bytesAvailable() > 0)
125 QByteArray line = process.readLine();
126 QString text = QString::fromUtf8(line.constData()).simplified();
127 if(regExp.lastIndexIn(text) >= 0)
129 bool ok = false;
130 int progress = regExp.cap(1).toInt(&ok);
131 if(ok) emit statusUpdated(progress);
133 else if(!text.isEmpty())
135 emit messageLogged(text);
140 process.waitForFinished();
141 if(process.state() != QProcess::NotRunning)
143 process.kill();
144 process.waitForFinished(-1);
147 emit statusUpdated(100);
148 emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
150 if(bTimeout || bAborted || process.exitStatus() != QProcess::NormalExit || QFileInfo(outputFile).size() == 0)
152 return false;
155 return true;
158 unsigned int DownmixFilter::detectChannels(const QString &sourceFile, volatile bool *abortFlag)
160 unsigned int channels = 0;
162 QProcess process;
163 QStringList args;
165 args << "--i" << sourceFile;
167 if(!startProcess(process, m_binary, args))
169 return channels;
172 bool bTimeout = false;
173 bool bAborted = false;
175 QRegExp regExp("Channels\\s*:\\s*(\\d+)", Qt::CaseInsensitive);
177 while(process.state() != QProcess::NotRunning)
179 if(*abortFlag)
181 process.kill();
182 bAborted = true;
183 emit messageLogged("\nABORTED BY USER !!!");
184 break;
186 process.waitForReadyRead(m_processTimeoutInterval);
187 if(!process.bytesAvailable() && process.state() == QProcess::Running)
189 process.kill();
190 qWarning("SoX process timed out <-- killing!");
191 emit messageLogged("\nPROCESS TIMEOUT !!!");
192 bTimeout = true;
193 break;
195 while(process.bytesAvailable() > 0)
197 QByteArray line = process.readLine();
198 QString text = QString::fromUtf8(line.constData()).simplified();
199 if(regExp.lastIndexIn(text) >= 0)
201 bool ok = false;
202 unsigned int temp = regExp.cap(1).toUInt(&ok);
203 if(ok) channels = temp;
205 if(!text.isEmpty())
207 emit messageLogged(text);
212 process.waitForFinished();
213 if(process.state() != QProcess::NotRunning)
215 process.kill();
216 process.waitForFinished(-1);
219 return channels;