130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// LameXP - Audio Encoder Front-End
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// Copyright (C) 2004-2020 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU GENERAL PUBLIC LICENSE as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version; always including the non-optional
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// LAMEXP GNU GENERAL PUBLIC LICENSE ADDENDUM. See "License.txt" file!
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// http://www.gnu.org/licenses/gpl-2.0.txt
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///////////////////////////////////////////////////////////////////////////////
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#include "Decoder_AAC.h"
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//Internal
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#include "Global.h"
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//MUtils
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#include <MUtils/Exception.h>
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//Qt
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#include <QDir>
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#include <QProcess>
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#include <QRegExp>
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#include <QMutexLocker>
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//Static
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QMutex AACDecoder::m_regexMutex;
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MUtils::Lazy<QRegExp> AACDecoder::m_regxFeatures([]
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{
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return new QRegExp(L1S("\\bLC\\b"), Qt::CaseInsensitive);
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});
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AACDecoder::AACDecoder(void)
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:
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m_binary(lamexp_tools_lookup("faad.exe"))
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{
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if(m_binary.isEmpty())
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{
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MUTILS_THROW("Error initializing AAC decoder. Tool 'faad.exe' is not registred!");
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}
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}
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AACDecoder::~AACDecoder(void)
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{
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}
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bool AACDecoder::decode(const QString &sourceFile, const QString &outputFile, QAtomicInt &abortFlag)
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{
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QProcess process;
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QStringList args;
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args << "-o" << QDir::toNativeSeparators(outputFile);
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args << QDir::toNativeSeparators(sourceFile);
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if(!startProcess(process, m_binary, args))
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{
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return false;
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}
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int prevProgress = -1;
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QRegExp regExp("\\[(\\d+)%\\]\\s*decoding", Qt::CaseInsensitive); //regExp("\\b(\\d+)%\\s+decoding", Qt::CaseInsensitive);
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const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, ®Exp](const QString &text)
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{
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if (regExp.lastIndexIn(text) >= 0)
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{
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qint32 newProgress;
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if (MUtils::regexp_parse_int32(regExp, newProgress))
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{
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if (newProgress > prevProgress)
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{
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emit statusUpdated(newProgress);
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prevProgress = NEXT_PROGRESS(newProgress);
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}
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}
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return true;
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}
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return false;
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});
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return (result == RESULT_SUCCESS);
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}
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bool AACDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
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{
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if((containerType.compare(QLatin1String("ADTS"), Qt::CaseInsensitive) == 0) || (containerType.compare(QLatin1String("MPEG-4"), Qt::CaseInsensitive) == 0))
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{
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if(formatType.compare(QLatin1String("AAC"), Qt::CaseInsensitive) == 0)
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{
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QMutexLocker lock(&m_regexMutex);
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if (m_regxFeatures->indexIn(formatProfile) >= 0)
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{
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if((formatVersion.compare(QLatin1String("2"), Qt::CaseInsensitive) == 0) || (formatVersion.compare(QLatin1String("4"), Qt::CaseInsensitive) == 0) || formatVersion.isEmpty())
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{
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return true;
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}
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}
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}
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}
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return false;
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}
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const AbstractDecoder::supportedType_t *AACDecoder::supportedTypes(void)
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{
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static const char *exts[] =
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{
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"mp4", "m4a", "aac", NULL
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};
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static const supportedType_t s_supportedTypes[] =
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{
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{ "Advanced Audio Coding", exts },
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{ NULL, NULL }
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};
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return s_supportedTypes;
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}
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