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[lamexp/LameXP.git] / src / Decoder_ALAC.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2022 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; always including the non-optional
9 // LAMEXP GNU GENERAL PUBLIC LICENSE ADDENDUM. See "License.txt" file!
10 //
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.
15 //
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.
19 //
20 // http://www.gnu.org/licenses/gpl-2.0.txt
21 ///////////////////////////////////////////////////////////////////////////////
22
23 #include "Decoder_ALAC.h"
24
25 //Internal
26 #include "Global.h"
27
28 //MUtils
29 #include <MUtils/Exception.h>
30
31 //Qt
32 #include <QDir>
33 #include <QProcess>
34 #include <QRegExp>
35 #include <QUuid>
36
37 ALACDecoder::ALACDecoder(void)
38 :
39         m_binary(lamexp_tools_lookup("refalac.exe"))
40 {
41         if(m_binary.isEmpty())
42         {
43                 MUTILS_THROW("Error initializing ALAC decoder. Tool 'refalac.exe' is not registred!");
44         }
45 }
46
47 ALACDecoder::~ALACDecoder(void)
48 {
49 }
50
51 bool ALACDecoder::decode(const QString &sourceFile, const QString &outputFile, QAtomicInt &abortFlag)
52 {
53         QProcess process;
54         QStringList args;
55
56         args << "--decode";
57         args << "-o" << QDir::toNativeSeparators(outputFile);
58         args << QDir::toNativeSeparators(sourceFile);
59
60         if(!startProcess(process, m_binary, args))
61         {
62                 return false;
63         }
64
65         int prevProgress = -1;
66         QRegExp regExp("\\[(\\d+)\\.(\\d)%\\]");
67
68         const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, &regExp](const QString &text)
69         {
70                 if (regExp.lastIndexIn(text) >= 0)
71                 {
72                         qint32 intVal[2];
73                         if (MUtils::regexp_parse_int32(regExp, intVal, 2))
74                         {
75                                 const int newProgress = qRound(static_cast<double>(intVal[0]) + (static_cast<double>(intVal[1]) / 10.0));
76                                 if (newProgress > prevProgress)
77                                 {
78                                         emit statusUpdated(newProgress);
79                                         prevProgress = NEXT_PROGRESS(newProgress);
80                                 }
81                         }
82                         return true;
83                 }
84                 return false;
85         });
86
87         return (result == RESULT_SUCCESS);
88 }
89
90 bool ALACDecoder::isFormatSupported(const QString &containerType, const QString& /*containerProfile*/, const QString &formatType, const QString& /*formatProfile*/, const QString& /*formatVersion*/)
91 {
92         if(containerType.compare(QLatin1String("MPEG-4"), Qt::CaseInsensitive) == 0)
93         {
94                 if(formatType.compare(QLatin1String("ALAC"), Qt::CaseInsensitive) == 0)
95                 {
96                         return true;
97                 }
98         }
99
100         return false;
101 }
102
103 const AbstractDecoder::supportedType_t *ALACDecoder::supportedTypes(void)
104 {
105         static const char *exts[] =
106         {
107                 "mp4", "m4a", NULL
108         };
109
110         static const supportedType_t s_supportedTypes[] =
111         {
112                 { "Apple Lossless", exts },
113                 { NULL, NULL }
114         };
115
116         return s_supportedTypes;
117 }