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235 lines
9.1 KiB
235 lines
9.1 KiB
/***************************************************************************
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copyright : (C) 2005 by Andy Leadbetter
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email : andrew.leadbetter@gmail.com
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***************************************************************************/
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/***************************************************************************
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License version *
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* 2.1 as published by the Free Software Foundation. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, *
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* MA 02110-1301 USA *
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***************************************************************************/
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#ifndef TAGLIB_MP4TAG_H
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#define TAGLIB_MP4TAG_H
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#include <config.h>
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#include <tag.h>
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#include "mp4file.h"
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#ifdef HAVE_MP4V2_H
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#include <mp4v2/mp4v2.h>
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#endif
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#ifdef HAVE_MP4_H
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#include <mp4.h>
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#endif
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namespace TagLib {
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namespace MP4 {
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/*!
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* This implements the generic TagLib::Tag API
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*/
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class Tag : public TagLib::Tag
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{
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public:
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static const int Undefined = -1;
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Tag();
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/*!
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* read tags from the mp4 file.
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*/
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void readTags( MP4FileHandle mp4file);
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/*!
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* Destroys this MP4Tag instance.
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*/
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virtual ~Tag();
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/*!
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* Returns the track name; if no track name is present in the tag
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* String::null will be returned.
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*/
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virtual String title() const { return m_title; }
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/*!
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* Returns the artist name; if no artist name is present in the tag
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* String::null will be returned.
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*/
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virtual String artist() const { return m_artist; }
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/*!
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* Returns the album name; if no album name is present in the tag
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* String::null will be returned.
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*/
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virtual String album() const { return m_album; }
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/*!
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* Returns the track comment; if no comment is present in the tag
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* String::null will be returned.
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*/
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virtual String comment() const { return m_comment; }
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/*!
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* Returns the genre name; if no genre is present in the tag String::null
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* will be returned.
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*/
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virtual String genre() const { return m_genre; }
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/*!
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* Returns the composer name; if no composer is present in the tag String::null
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* will be returned.
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*/
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virtual String composer() const { return m_composer; }
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/*!
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* Returns the year; if there is no year set, this will return 0.
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*/
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virtual uint year() const { return m_year; }
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/*!
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* Returns the track number; if there is no track number set, this will
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* return 0.
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*/
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virtual uint track() const { return m_track; }
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/*!
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* Returns the disc number; if there is no disc number set, this will
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* return 0.
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*/
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virtual uint disk() const { return m_disk; }
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/*!
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* Returns the BPM (tempo); if there is no BPM, this will return 0.
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*/
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virtual uint bpm() const { return m_bpm; }
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/*!
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* Returns the embedded cover image; if there is no cover set, this will
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* return an empty ByteVector.
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*/
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virtual const ByteVector &cover() const { return m_image; }
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/*!
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* Returns whether this is part of a compilation; if this flag is not set,
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* this will return the Undefined constant.
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*/
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virtual int compilation() const { return m_compilation; }
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/*!
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* Sets the title to \a s. If \a s is String::null then this value will be
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* cleared.
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*/
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virtual void setTitle(const String &s) { m_title = s; }
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/*!
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* Sets the artist to \a s. If \a s is String::null then this value will be
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* cleared.
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*/
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virtual void setArtist(const String &s) { m_artist = s; }
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/*!
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* Sets the album to \a s. If \a s is String::null then this value will be
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* cleared.
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*/
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virtual void setAlbum(const String &s) { m_album = s; }
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/*!
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* Sets the album to \a s. If \a s is String::null then this value will be
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* cleared.
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*/
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virtual void setComment(const String &s) { m_comment = s; }
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/*!
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* Sets the genre to \a s. If \a s is String::null then this value will be
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* cleared. For tag formats that use a fixed set of genres, the appropriate
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* value will be selected based on a string comparison. A list of available
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* genres for those formats should be available in that type's
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* implementation.
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*/
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virtual void setGenre(const String &s) { m_genre = s; }
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/*!
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* Sets the year to \a i. If \a s is 0 then this value will be cleared.
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*/
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virtual void setYear(uint i) { m_year = i; }
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/*!
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* Sets the track to \a i. If \a i is 0 then this value will be cleared.
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*/
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virtual void setTrack(uint i) { m_track = i; }
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/*!
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* Sets the disc to \a i. If \a i is 0 then this value will be cleared.
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*/
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virtual void setDisk(uint i) { m_disk = i; }
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/*!
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* Sets the BPM (tempo) to \a i. It \a i is 0 then this value will be cleared.
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*/
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virtual void setBpm(uint i) { m_bpm = i; }
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/*!
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* Sets whether this is part of a compilation.
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*/
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virtual void setCompilation(bool compilation) { m_compilation = compilation ? 1 : 0; }
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/*!
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* Sets the composer to \a s. If \a s is String::null then this value will
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* be cleared.
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*/
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virtual void setComposer(const String &s) { m_composer = s; }
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/*!
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* Sets the embedded cover image to \a i. If \a i is empty then this value
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* will be cleared.
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*/
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virtual void setCover(const ByteVector &i) { m_image = i; }
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/*!
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* Returns true if the tag does not contain any data. This should be
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* reimplemented in subclasses that provide more than the basic tagging
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* abilities in this class.
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*/
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virtual bool isEmpty() const;
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/*!
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* Copies the generic data from one tag to another.
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*
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* \note This will not affect any of the lower level details of the tag. For
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* instance if any of the tag type specific data (maybe a URL for a band) is
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* set, this will not modify or copy that. This just copies using the API
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* in this class.
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*
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* If \a overwrite is true then the values will be unconditionally copied.
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* If false only empty values will be overwritten.
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*/
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static void duplicate(const Tag *source, Tag *target, bool overwrite = true);
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protected:
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String m_title;
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String m_artist;
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String m_album;
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String m_comment;
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String m_genre;
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String m_composer;
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uint m_year;
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uint m_track;
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uint m_disk;
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uint m_bpm;
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int m_compilation;
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ByteVector m_image;
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};
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}
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}
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#endif
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