/***************************************************************************copyright            : (C) 2005 by Andy Leadbetteremail                : andrew.leadbetter@gmail.com ***************************************************************************//*************************************************************************** *   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                                                   * ***************************************************************************/#ifndef TAGLIB_MP4TAG_H#define TAGLIB_MP4TAG_H#include <tag.h>#include "mp4file.h"#include <mp4.h>namespace TagLib {    namespace MP4 {        /*!         * This implements the generic TagLib::Tag API         */        class Tag : public TagLib::Tag        {            public:                static const int Undefined = -1;                                Tag();                /*!                 * read tags from the mp4 file.                 */                void readTags( MP4FileHandle mp4file);                /*!                 * Destroys this MP4Tag instance.                 */                virtual ~Tag();                /*!                 * Returns the track name; if no track name is present in the tag                 * String::null will be returned.                 */                virtual String title() const { return m_title; }                /*!                 * Returns the artist name; if no artist name is present in the tag                 * String::null will be returned.                 */                virtual String artist() const { return m_artist; }                /*!                 * Returns the album name; if no album name is present in the tag                 * String::null will be returned.                 */                virtual String album() const { return m_album; }                /*!                 * Returns the track comment; if no comment is present in the tag                 * String::null will be returned.                 */                virtual String comment() const { return m_comment; }                /*!                 * Returns the genre name; if no genre is present in the tag String::null                 * will be returned.                 */                virtual String genre() const { return m_genre; }                /*!                 * Returns the composer name; if no composer is present in the tag String::null                 * will be returned.                 */                virtual String composer() const { return m_composer; }                /*!                 * Returns the year; if there is no year set, this will return 0.                 */                virtual uint year() const { return m_year; }                /*!                 * Returns the track number; if there is no track number set, this will                 * return 0.                 */                virtual uint track() const { return m_track; }                /*!                 * Returns the disc number; if there is no disc number set, this will                 * return 0.                 */                virtual uint disk() const { return m_disk; }                /*!                 * Returns the BPM (tempo);  if there is no BPM, this will return 0.                 */                virtual uint bpm() const { return m_bpm; }                /*!                * Returns the embedded cover image; if there is no cover set, this will                * return an empty ByteVector.                */                virtual const ByteVector &cover() const { return m_image; }                /*!                 * Returns whether this is part of a compilation; if this flag is not set,                 * this will return the Undefined constant.                 */                virtual int compilation() const { return m_compilation; }                /*!                 * Sets the title to \a s.  If \a s is String::null then this value will be                 * cleared.                 */                virtual void setTitle(const String &s) { m_title = s; }                /*!                 * Sets the artist to \a s.  If \a s is String::null then this value will be                 * cleared.                 */                virtual void setArtist(const String &s) { m_artist = s; }                /*!                 * Sets the album to \a s.  If \a s is String::null then this value will be                 * cleared.                 */                virtual void setAlbum(const String &s) { m_album = s; }                 /*!                 * Sets the album to \a s.  If \a s is String::null then this value will be                 * cleared.                 */                virtual void setComment(const String &s) { m_comment = s; }                /*!                 * Sets the genre to \a s.  If \a s is String::null then this value will be                 * cleared.  For tag formats that use a fixed set of genres, the appropriate                 * value will be selected based on a string comparison.  A list of available                 * genres for those formats should be available in that type's                 * implementation.                 */                virtual void setGenre(const String &s) { m_genre = s; }                /*!                 * Sets the year to \a i.  If \a s is 0 then this value will be cleared.                 */                virtual void setYear(uint i) { m_year = i; }                /*!                 * Sets the track to \a i.  If \a i is 0 then this value will be cleared.                 */                virtual void setTrack(uint i) { m_track = i; }                /*!                 * Sets the disc to \a i.  If \a i is 0 then this value will be cleared.                 */                virtual void setDisk(uint i) { m_disk = i; }                /*!                 * Sets the BPM (tempo) to \a i.  It \a i is 0 then this value will be cleared.                 */                virtual void setBpm(uint i) { m_bpm = i; }                /*!                 * Sets whether this is part of a compilation.                 */                virtual void setCompilation(bool compilation) { m_compilation = compilation ? 1 : 0; }                /*!                 * Sets the composer to \a s.  If \a s is String::null then this value will                 * be cleared.                 */                virtual void setComposer(const String &s) { m_composer = s; }                /*!                 * Sets the embedded cover image to \a i. If \a i is empty then this value                 * will be cleared.                 */                virtual void setCover(const ByteVector &i) { m_image = i; }                /*!                 * Returns true if the tag does not contain any data.  This should be                 * reimplemented in subclasses that provide more than the basic tagging                 * abilities in this class.                 */                virtual bool isEmpty() const;                /*!                 * Copies the generic data from one tag to another.                 *                 * \note This will not affect any of the lower level details of the tag.  For                 * instance if any of the tag type specific data (maybe a URL for a band) is                 * set, this will not modify or copy that.  This just copies using the API                 * in this class.                 *                 * If \a overwrite is true then the values will be unconditionally copied.                 * If false only empty values will be overwritten.                 */                static void duplicate(const Tag *source, Tag *target, bool overwrite = true);            protected:                String m_title;                String m_artist;                String m_album;                String m_comment;                String m_genre;                String m_composer;                uint m_year;                uint m_track;                uint m_disk;                uint m_bpm;                int m_compilation;                ByteVector m_image;        };    }}#endif