/usr/include/qmmp/metadatamanager.h is in libqmmp-dev 0.7.4-1.
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* Copyright (C) 2009-2012 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef METADATAMANAGER_H
#define METADATAMANAGER_H
#include <QList>
#include <QStringList>
#include <QPixmap>
#include <QDir>
#include <QMutex>
#include "fileinfo.h"
#include "metadatamodel.h"
class DecoderFactory;
class EngineFactory;
class InputSourceFactory;
class QmmpSettings;
/*! @brief The MetaDataManager class is the base class for metadata access.
* @author Ilya Kotov <forkotov02@hotmail.ru>
*/
class MetaDataManager
{
public:
/*!
* Constructor. Use MetaDataManager::instance() instead.
*/
MetaDataManager();
/*!
* Destructor. Use MetaDataManager::destroy() instead.
*/
~MetaDataManager();
/*!
* Extracts metadata and audio information from file \b path and returns a list of FileInfo items.
* One file may contain several playlist items (for example: cda disk or flac with embedded cue)
* @param path Source file path.
* @param useMetaData Metadata usage (\b true - use, \b - do not use)
*/
QList <FileInfo *> createPlayList(const QString &path, bool useMetaData = true) const;
/*!
* Creats metadata object, which provides full access to file tags.
* @param url File path or URL.
* @param parent Parent object.
* @return MetaDataModel pointer or null pointer.
*/
MetaDataModel* createMetaDataModel(const QString &url, QObject *parent = 0) const;
/*!
* Returns a list of file name filters with description, i.e. "MPEG Files (*.mp3 *.mpg)"
*/
QStringList filters() const;
/*!
* Returns a list of file name filters, i.e. "*.mp3 *.mpg"
*/
QStringList nameFilters() const;
/*!
* Returns a list of the suported protocols
*/
QStringList protocols() const;
/*!
* Returns \b true if \b file is supported and exists, otherwise returns \b false
*/
bool supports(const QString &file) const;
/*!
* Returns cover pixmap for the given file \b fileName,
* or returns an empty pixmap if cover is not available.
*/
QPixmap getCover(const QString &fileName);
/*!
* Returns cover file path for the given file \b fileName, or returns
* an empty string if cover file is not available. This function does not work
* with embedded covers.
*/
QString getCoverPath(const QString &fileName);
/*!
* Clears cover path cache.
*/
void clearCoverChache();
/*!
* Prepares object for usage by another thread to avoid warnings about parent the different thread
*/
void prepareForAnotherThread();
/*!
* Returns a pointer to the MetaDataManager instance.
*/
static MetaDataManager* instance();
/*!
* Destroys MetaDataManager object.
*/
static void destroy();
private:
QFileInfoList findCoverFiles(QDir dir, int depth) const;
QMap <QString, QString> m_cover_cache;
QmmpSettings *m_settings;
mutable QMutex m_mutex;
static MetaDataManager* m_instance;
};
#endif // METADATAMANAGER_H
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