strawberry-audio-player-win.../3rdparty/taglib/ape/apefile.h

215 lines
7.3 KiB
C++

/***************************************************************************
copyright : (C) 2010 by Alex Novichkov
email : novichko@atnet.ru
copyright : (C) 2006 by Lukáš Lalinský
email : lalinsky@gmail.com
(original WavPack implementation)
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.org
(original MPC implementation)
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_APEFILE_H
#define TAGLIB_APEFILE_H
#include "tfile.h"
#include "taglib_export.h"
#include "apeproperties.h"
namespace Strawberry_TagLib {
namespace TagLib {
class Tag;
namespace ID3v1 {
class Tag;
}
namespace APE {
class Tag;
}
//! An implementation of APE metadata
/*!
* This is implementation of APE metadata.
*
* This supports ID3v1 and APE (v1 and v2) style comments as well as reading stream properties from the file.
*
*/
namespace APE {
//! An implementation of TagLib::File with APE specific methods
/*!
* This implements and provides an interface for APE files to the
* TagLib::Tag and TagLib::AudioProperties interfaces by way of implementing
* the abstract TagLib::File API as well as providing some additional information specific to APE files.
*
*/
class TAGLIB_EXPORT File : public Strawberry_TagLib::TagLib::File {
public:
/*!
* This set of flags is used for various operations and is suitable for being OR-ed together.
*/
enum TagTypes {
//! Empty set. Matches no tag types.
NoTags = 0x0000,
//! Matches ID3v1 tags.
ID3v1 = 0x0001,
//! Matches APE tags.
APE = 0x0002,
//! Matches all tag types.
AllTags = 0xffff
};
/*!
* Constructs an APE file from \a file.
* If \a readProperties is true the file's audio properties will also be read.
*
* \note In the current implementation, \a propertiesStyle is ignored.
*/
explicit File(FileName file, bool readProperties = true, AudioProperties::ReadStyle propertiesStyle = AudioProperties::Average);
/*!
* Constructs an APE file from \a stream.
* If \a readProperties is true the file's audio properties will also be read.
*
* \note TagLib will *not* take ownership of the stream, the caller is responsible for deleting it after the File object.
*
* \note In the current implementation, \a propertiesStyle is ignored.
*/
explicit File(IOStream *stream, bool readProperties = true, AudioProperties::ReadStyle propertiesStyle = AudioProperties::Average);
/*!
* Destroys this instance of the File.
*/
~File() override;
/*!
* Returns the Tag for this file. This will be an APE tag, an ID3v1 tag or a combination of the two.
*/
Strawberry_TagLib::TagLib::Tag *tag() const override;
/*!
* Implements the unified property interface -- import function.
* Creates an APEv2 tag if necessary.
* A potentially existing ID3v1 tag will be updated as well.
*/
PropertyMap setProperties(const PropertyMap&) override;
/*!
* Returns the APE::AudioProperties for this file.
* If no audio properties were read then this will return a null pointer.
*/
AudioProperties *audioProperties() const override;
/*!
* Saves the file.
*
* \note According to the official Monkey's Audio SDK, an APE file
* can only have either ID3V1 or APE tags, so a parameter is used here.
*/
bool save() override;
/*!
* Returns a pointer to the ID3v1 tag of the file.
*
* If \a create is false (the default) this may return a null pointer if there is no valid ID3v1 tag.
* If \a create is true it will create an ID3v1 tag if one does not exist and returns a valid pointer.
*
* \note This may return a valid pointer regardless of whether or not the file on disk has an ID3v1 tag.
* Use hasID3v1Tag() to check if the file on disk actually has an ID3v1 tag.
*
* \note The Tag <b>is still</b> owned by the MPEG::File and should not be deleted by the user.
* It will be deleted when the file (object) is destroyed.
*
* \see hasID3v1Tag()
*/
ID3v1::Tag *ID3v1Tag(bool create = false);
/*!
* Returns a pointer to the APE tag of the file.
*
* If \a create is false (the default) this may return a null pointer if there is no valid APE tag.
* If \a create is true it will create an APE tag if one does not exist and returns a valid pointer.
*
* \note This may return a valid pointer regardless of whether or not the file on disk has an APE tag.
* Use hasAPETag() to check if the file on disk actually has an APE tag.
*
* \note The Tag <b>is still</b> owned by the MPEG::File and should not be deleted by the user.
* It will be deleted when the file (object) is destroyed.
*
* \see hasAPETag()
*/
APE::Tag *APETag(bool create = false);
/*!
* This will remove the tags that match the OR-ed together TagTypes from the file.
* By default it removes all tags.
*
* \note This will also invalidate pointers to the tags as their memory will be freed.
* \note In order to make the removal permanent save() still needs to be called
*/
void strip(int tags = AllTags);
/*!
* Returns whether or not the file on disk actually has an APE tag.
*
* \see APETag()
*/
bool hasAPETag() const;
/*!
* Returns whether or not the file on disk actually has an ID3v1 tag.
*
* \see ID3v1Tag()
*/
bool hasID3v1Tag() const;
/*!
* Returns whether or not the given \a stream can be opened as an APE file.
*
* \note This method is designed to do a quick check.
* The result may not necessarily be correct.
*/
static bool isSupported(IOStream *stream);
private:
File(const File &);
File &operator=(const File &);
void read(bool readProperties);
class FilePrivate;
FilePrivate *d;
};
} // namespace APE
} // namespace TagLib
} // namespace Strawberry_TagLib
#endif