strawberry-audio-player-win.../ext/libstrawberry-tagreader/tagreaderbase.h

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/* This file is part of Strawberry.
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Copyright 2018-2023, Jonas Kvinge <jonas@jkvinge.net>
Strawberry 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 3 of the License, or
(at your option) any later version.
Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TAGREADERBASE_H
#define TAGREADERBASE_H
#include "config.h"
#include <string>
#include <QByteArray>
#include <QString>
#include "tagreadermessages.pb.h"
/*
* This class holds all useful methods to read and write tags from/to files.
* You should not use it directly in the main process but rather use a TagReaderWorker process (using TagReaderClient)
*/
class TagReaderBase {
public:
explicit TagReaderBase();
~TagReaderBase();
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class Cover {
public:
explicit Cover(const QByteArray &_data = QByteArray(), const QString &_mime_type = QString()) : data(_data), mime_type(_mime_type) {}
QByteArray data;
QString mime_type;
QString error;
};
virtual bool IsMediaFile(const QString &filename) const = 0;
virtual bool ReadFile(const QString &filename, spb::tagreader::SongMetadata *song) const = 0;
virtual bool SaveFile(const spb::tagreader::SaveFileRequest &request) const = 0;
virtual QByteArray LoadEmbeddedArt(const QString &filename) const = 0;
virtual bool SaveEmbeddedArt(const spb::tagreader::SaveEmbeddedArtRequest &request) const = 0;
virtual bool SaveSongPlaycountToFile(const QString &filename, const spb::tagreader::SongMetadata &song) const = 0;
virtual bool SaveSongRatingToFile(const QString &filename, const spb::tagreader::SongMetadata &song) const = 0;
static float ConvertPOPMRating(const int POPM_rating);
static int ConvertToPOPMRating(const float rating);
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static Cover LoadCoverFromRequest(const spb::tagreader::SaveFileRequest &request);
static Cover LoadCoverFromRequest(const spb::tagreader::SaveEmbeddedArtRequest &request);
private:
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static Cover LoadCoverFromRequest(const QString &song_filename, const QString &cover_filename, QByteArray cover_data, QString cover_mime_type);
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Q_DISABLE_COPY(TagReaderBase)
};
#endif // TAGREADERBASE_H