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 "Decoder_MP3.h"
29 #include <MUtils/Global.h>
30 #include <MUtils/Exception.h>
36 #include <QMutexLocker>
39 QMutex
MP3Decoder::m_regexMutex
;
40 MUtils::Lazy
<QRegExp
> MP3Decoder::m_regxLayer([]
42 return new QRegExp(L1S("^Layer\\s+(1|2|3)\\b"), Qt::CaseInsensitive
);
44 MUtils::Lazy
<QRegExp
> MP3Decoder::m_regxVersion([]
46 return new QRegExp(L1S("^(Version\\s+)?(1|2|2\\.5)\\b"), Qt::CaseInsensitive
);
49 MP3Decoder::MP3Decoder(void)
51 m_binary(lamexp_tools_lookup("mpg123.exe"))
53 if (m_binary
.isEmpty())
55 MUTILS_THROW("Error initializing MPG123 decoder. Tool 'mpg123.exe' is not registred!");
59 MP3Decoder::~MP3Decoder(void)
63 bool MP3Decoder::decode(const QString
&sourceFile
, const QString
&outputFile
, QAtomicInt
&abortFlag
)
68 args
<< "-v" << "--utf8" << "-w" << QDir::toNativeSeparators(outputFile
);
69 args
<< QDir::toNativeSeparators(sourceFile
);
71 if (!startProcess(process
, m_binary
, args
))
76 int prevProgress
= -1;
77 QRegExp
regExp("[_=>]\\s+(\\d+)\\+(\\d+)\\s+");
79 const result_t result
= awaitProcess(process
, abortFlag
, [this, &prevProgress
, ®Exp
](const QString
&text
)
81 if (regExp
.lastIndexIn(text
) >= 0)
84 if (MUtils::regexp_parse_uint32(regExp
, values
, 2))
86 const quint32 total
= values
[0] + values
[1];
87 if ((total
>= 512U) && (values
[0] >= 256U))
89 const int newProgress
= qRound((static_cast<double>(values
[0]) / static_cast<double>(total
)) * 100.0);
90 if (newProgress
> prevProgress
)
92 emit
statusUpdated(newProgress
);
93 prevProgress
= NEXT_PROGRESS(newProgress
);
102 return (result
== RESULT_SUCCESS
);
105 bool MP3Decoder::isFormatSupported(const QString
&containerType
, const QString
&containerProfile
, const QString
&formatType
, const QString
&formatProfile
, const QString
&formatVersion
)
107 static const QLatin1String
mpegAudio("MPEG Audio"), waveAudio("Wave");
108 if((containerType
.compare(mpegAudio
, Qt::CaseInsensitive
) == 0) || (containerType
.compare(waveAudio
, Qt::CaseInsensitive
) == 0))
110 if(formatType
.compare(mpegAudio
, Qt::CaseInsensitive
) == 0)
112 QMutexLocker
lock(&m_regexMutex
);
113 if (m_regxLayer
->indexIn(formatProfile
) >= 0)
115 return (m_regxVersion
->indexIn(formatVersion
) >= 0);
123 const AbstractDecoder::supportedType_t
*MP3Decoder::supportedTypes(void)
125 static const char *exts
[][3] =
127 { "mp3", "mpa", NULL
},
128 { "mp2", "mpa", NULL
},
129 { "mp1", "mpa", NULL
}
132 static const supportedType_t s_supportedTypes
[] =
134 { "MPEG Audio Layer III", exts
[0] },
135 { "MPEG Audio Layer II", exts
[1] },
136 { "MPEG Audio Layer I", exts
[2] },
140 return s_supportedTypes
;