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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Tracks</title>
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<a href="#libgpod-Tracks.description" class="shortcut">Description</a>
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<h2><span class="refentrytitle"><a name="libgpod-Tracks.top_of_page"></a>Tracks</span></h2>
<p>Tracks — Data structure to store metadata about an iPod track</p>
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<div class="refsynopsisdiv">
<a name="libgpod-Tracks.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">struct <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track">Itdb_Track</a>;
<a class="link" href="libgpod-Tracks.html#Itdb-Track-Private" title="Itdb_Track_Private">Itdb_Track_Private</a>;
enum <a class="link" href="libgpod-Tracks.html#Itdb-Mediatype" title="enum Itdb_Mediatype">Itdb_Mediatype</a>;
#define <a class="link" href="libgpod-Tracks.html#ITDB-RATING-STEP:CAPS" title="ITDB_RATING_STEP">ITDB_RATING_STEP</a>
<a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * <a class="link" href="libgpod-Tracks.html#itdb-track-new" title="itdb_track_new ()">itdb_track_new</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-free" title="itdb_track_free ()">itdb_track_free</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-add" title="itdb_track_add ()">itdb_track_add</a> (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>,
<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> pos</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-remove" title="itdb_track_remove ()">itdb_track_remove</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-unlink" title="itdb_track_unlink ()">itdb_track_unlink</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);
<a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * <a class="link" href="libgpod-Tracks.html#itdb-track-duplicate" title="itdb_track_duplicate ()">itdb_track_duplicate</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *tr</code></em>);
<a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * <a class="link" href="libgpod-Tracks.html#itdb-track-by-id" title="itdb_track_by_id ()">itdb_track_by_id</a> (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> id</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="returnvalue">GTree</span></a> * <a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-create" title="itdb_track_id_tree_create ()">itdb_track_id_tree_create</a> (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-destroy" title="itdb_track_id_tree_destroy ()">itdb_track_id_tree_destroy</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> *idtree</code></em>);
<a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * <a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-by-id" title="itdb_track_id_tree_by_id ()">itdb_track_id_tree_by_id</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> *idtree</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> id</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> <a class="link" href="libgpod-Tracks.html#itdb-track-get-thumbnail" title="itdb_track_get_thumbnail ()">itdb_track_get_thumbnail</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> height</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgpod-Tracks.html#itdb-track-has-thumbnails" title="itdb_track_has_thumbnails ()">itdb_track_has_thumbnails</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgpod-Tracks.html#itdb-track-set-thumbnails" title="itdb_track_set_thumbnails ()">itdb_track_set_thumbnails</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgpod-Tracks.html#itdb-track-set-thumbnails-from-data" title="itdb_track_set_thumbnails_from_data ()">itdb_track_set_thumbnails_from_data</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *image_data</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> image_data_len</code></em>);
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="libgpod-Tracks.html#itdb-track-set-thumbnails-from-pixbuf" title="itdb_track_set_thumbnails_from_pixbuf ()">itdb_track_set_thumbnails_from_pixbuf</a>
(<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> pixbuf</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgpod-Tracks.html#itdb-track-remove-thumbnails" title="itdb_track_remove_thumbnails ()">itdb_track_remove_thumbnails</a> (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libgpod-Tracks.description"></a><h2>Description</h2>
<p>
These functions and structures are for storing and retrieving
information about an iPod track.
</p>
</div>
<div class="refsect1">
<a name="libgpod-Tracks.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="Itdb-Track"></a><h3>struct Itdb_Track</h3>
<pre class="programlisting">struct Itdb_Track {
Itdb_iTunesDB *itdb;
gchar *title;
gchar *ipod_path;
gchar *album;
gchar *artist;
gchar *genre;
gchar *filetype;
gchar *comment;
gchar *category;
gchar *composer;
gchar *grouping;
gchar *description;
gchar *podcasturl;
gchar *podcastrss;
Itdb_Chapterdata *chapterdata;
gchar *subtitle;
/* the following 5 are new in libgpod 0.4.2... */
gchar *tvshow;
gchar *tvepisode;
gchar *tvnetwork;
gchar *albumartist;
gchar *keywords;
/* the following 6 are new in libgpod 0.5.0... */
/* You can set these strings to override the standard
sortorder. When set they take precedence over the default
'artist', 'album'... fields.
For example, in the case of an artist name like "The Artist",
iTunes will set sort_artist to "Artist, The" followed by five
0x01 characters. Why five 0x01 characters are added is not
completely understood.
If you do not set the sort_artist field, libgpod will pre-sort
the lists displayed by the iPod according to "Artist, The",
without setting the field.
*/
gchar *sort_artist;
gchar *sort_title;
gchar *sort_album;
gchar *sort_albumartist;
gchar *sort_composer;
gchar *sort_tvshow;
/* end of new fields in libgpod 0.5.0 */
guint32 id;
guint32 size;
gint32 tracklen;
gint32 cd_nr;
gint32 cds;
gint32 track_nr;
gint32 tracks;
gint32 bitrate;
guint16 samplerate;
guint16 samplerate_low;
gint32 year;
gint32 volume;
guint32 soundcheck;
time_t time_added;
time_t time_modified;
time_t time_played;
guint32 bookmark_time;
guint32 rating;
guint32 playcount;
guint32 playcount2;
guint32 recent_playcount;
gboolean transferred;
gint16 BPM;
guint8 app_rating;
guint8 type1;
guint8 type2;
guint8 compilation;
guint32 starttime;
guint32 stoptime;
guint8 checked;
guint64 dbid;
guint32 drm_userid;
guint32 visible;
guint32 filetype_marker;
guint16 artwork_count;
guint32 artwork_size;
float samplerate2;
guint16 unk126;
guint32 unk132;
time_t time_released;
guint16 unk144;
guint16 explicit_flag;
guint32 unk148;
guint32 unk152;
guint32 skipcount;
guint32 recent_skipcount;
guint32 last_skipped;
guint8 has_artwork;
guint8 skip_when_shuffling;
guint8 remember_playback_position;
guint8 flag4;
guint64 dbid2;
guint8 lyrics_flag;
guint8 movie_flag;
guint8 mark_unplayed;
guint8 unk179;
guint32 unk180;
guint32 pregap;
guint64 samplecount;
guint32 unk196;
guint32 postgap;
guint32 unk204;
guint32 mediatype;
guint32 season_nr;
guint32 episode_nr;
guint32 unk220;
guint32 unk224;
guint32 unk228, unk232, unk236, unk240, unk244;
guint32 gapless_data;
guint32 unk252;
guint16 gapless_track_flag;
guint16 gapless_album_flag;
guint16 obsolete;
/* This is for Cover Art support */
struct _Itdb_Artwork *artwork;
/* This is for sparse artwork support, new in libgpod-0.7.0 */
guint32 mhii_link;
/* reserved for future use */
gint32 reserved_int1;
gint32 reserved_int2;
gint32 reserved_int3;
gint32 reserved_int4;
gint32 reserved_int5;
gint32 reserved_int6;
Itdb_Track_Private *priv;
gpointer reserved2;
gpointer reserved3;
gpointer reserved4;
gpointer reserved5;
gpointer reserved6;
/* +++***+++***+++***+++***+++***+++***+++***+++***+++***+++***
When adding string fields don't forget to add them in
itdb_track_duplicate as well
+++***+++***+++***+++***+++***+++***+++***+++***+++***+++*** */
/* below is for use by application */
guint64 usertype;
gpointer userdata;
/* functions called to duplicate/free userdata */
ItdbUserDataDuplicateFunc userdata_duplicate;
ItdbUserDataDestroyFunc userdata_destroy;
};
</pre>
<p>
Structure representing a track in an iTunesDB
</p>
<p>
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>When adding string fields don't forget to add them in
<a class="link" href="libgpod-Tracks.html#itdb-track-duplicate" title="itdb_track_duplicate ()"><code class="function">itdb_track_duplicate()</code></a> as well.</p>
</div>
<p>
</p>
<p>
Many of the parameter descriptions are copied verbatim from
http://ipodlinux.org/ITunesDB, which is the best source for information about
the iTunesDB and related files.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *<em class="structfield"><code><a name="Itdb-Track.itdb"></a>itdb</code></em>;</span></p></td>
<td>A pointer to the <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> (for convenience)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.title"></a>title</code></em>;</span></p></td>
<td>The title of the track in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.ipod-path"></a>ipod_path</code></em>;</span></p></td>
<td>The file path on the iPod. Directories are
separated with ":" instead of "/". The path is
relative to the iPod mountpoint.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.album"></a>album</code></em>;</span></p></td>
<td>The album name in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.artist"></a>artist</code></em>;</span></p></td>
<td>The artist name in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.genre"></a>genre</code></em>;</span></p></td>
<td>The genre in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.filetype"></a>filetype</code></em>;</span></p></td>
<td>A UTF8 string describing the file type. E.g.
"MP3-File".</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.comment"></a>comment</code></em>;</span></p></td>
<td>A comment in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.category"></a>category</code></em>;</span></p></td>
<td>The category ("Technology", "Music", etc.)
where the podcast was located. (Added in
dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.composer"></a>composer</code></em>;</span></p></td>
<td>The composer name in UTF8</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.grouping"></a>grouping</code></em>;</span></p></td>
<td>??? (UTF8)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.description"></a>description</code></em>;</span></p></td>
<td>Description text (such as podcast show notes).
(Added in dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.podcasturl"></a>podcasturl</code></em>;</span></p></td>
<td>Podcast Enclosure URL in UTF-8 or ASCII.
(Added in dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.podcastrss"></a>podcastrss</code></em>;</span></p></td>
<td>Podcast RSS URL in UTF-8 or ASCII.
(Added in dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="libgpod-Chapter-Data.html#Itdb-Chapterdata" title="struct Itdb_Chapterdata"><span class="type">Itdb_Chapterdata</span></a> *<em class="structfield"><code><a name="Itdb-Track.chapterdata"></a>chapterdata</code></em>;</span></p></td>
<td>This is an m4a-style entry that is used to
display subsongs within a mhit. (Added in
dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.subtitle"></a>subtitle</code></em>;</span></p></td>
<td>Subtitle (usually the same as Description).
(Added in dbversion 0x0d)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.tvshow"></a>tvshow</code></em>;</span></p></td>
<td>Name of the TV show (only used for TV Shows).
(Added in dbversion 0x0d?) (Since libgpod-0.4.2)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.tvepisode"></a>tvepisode</code></em>;</span></p></td>
<td>The episode number (only used for TV Shows).
(Added in dbversion 0x0d?) (Since libgpod-0.4.2)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.tvnetwork"></a>tvnetwork</code></em>;</span></p></td>
<td>The TV network (only used for TV Shows).
(Added in dbversion 0x0d?) (Since libgpod-0.4.2)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.albumartist"></a>albumartist</code></em>;</span></p></td>
<td>The album artist (Added in dbversion 0x13?)
(Since libgpod-0.4.2)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.keywords"></a>keywords</code></em>;</span></p></td>
<td>List of keywords pertaining to the track.
(Added in dbversion 0x13?) (Since libgpod-0.4.2)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-artist"></a>sort_artist</code></em>;</span></p></td>
<td>The artist name used for sorting. Artists with
names like "The Artist" would have "Artist,
The" here. If you do not set this field,
libgpod will pre-sort the lists displayed by
the iPod according to "Artist, The", without
setting this field.
(Added in dbversion 0x13?) (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-title"></a>sort_title</code></em>;</span></p></td>
<td>The track title used for sorting. See
<em class="parameter"><code>sort_artist</code></em>. (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-album"></a>sort_album</code></em>;</span></p></td>
<td>The album name used for sorting. See
<em class="parameter"><code>sort_artist</code></em>. (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-albumartist"></a>sort_albumartist</code></em>;</span></p></td>
<td>The album artist used for sorting. See
<em class="parameter"><code>sort_artist</code></em>. (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-composer"></a>sort_composer</code></em>;</span></p></td>
<td>The composer used for sorting. See
<em class="parameter"><code>sort_artist</code></em>. (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="Itdb-Track.sort-tvshow"></a>sort_tvshow</code></em>;</span></p></td>
<td>The name of the TV show used for sorting. See
<em class="parameter"><code>sort_artist</code></em>. (Since libgpod-0.5.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.id"></a>id</code></em>;</span></p></td>
<td>Unique ID of track</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.size"></a>size</code></em>;</span></p></td>
<td>The size of the file in bytes</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.tracklen"></a>tracklen</code></em>;</span></p></td>
<td>The length of the track in ms</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.cd-nr"></a>cd_nr</code></em>;</span></p></td>
<td>The CD number the track comes from.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.cds"></a>cds</code></em>;</span></p></td>
<td>The total number of CDs.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.track-nr"></a>track_nr</code></em>;</span></p></td>
<td>The track number.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.tracks"></a>tracks</code></em>;</span></p></td>
<td>The total number of tracks.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.bitrate"></a>bitrate</code></em>;</span></p></td>
<td>The bitrate at which the file is encoded.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.samplerate"></a>samplerate</code></em>;</span></p></td>
<td>The samplerate of the track (e.g. CD = 44100)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.samplerate-low"></a>samplerate_low</code></em>;</span></p></td>
<td>In the iTunesDB the samplerate is
multiplied by 0x10000 -- these are the
lower 16 bit, which are usually 0</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.year"></a>year</code></em>;</span></p></td>
<td>The year the track was released</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.volume"></a>volume</code></em>;</span></p></td>
<td>Volume adjustment field. This is a value from
-255 to 255 that will be applied to the track
on playback.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.soundcheck"></a>soundcheck</code></em>;</span></p></td>
<td>The SoundCheck value to apply to the song, when
SoundCheck is switched on in the iPod settings.
The value for this field can be determined by
the equation: X = 1000 * 10 ^ (-.1 * Y) where Y
is the adjustment value in dB and X is the
value that goes into the SoundCheck field. The
value 0 is special, the equation is not used
and it is treated as "no Soundcheck" (basically
the same as the value 1000). This equation
works perfectly well with ReplayGain derived
data instead of the iTunes SoundCheck derived
information.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">time_t</span> <em class="structfield"><code><a name="Itdb-Track.time-added"></a>time_added</code></em>;</span></p></td>
<td>The time the track was added.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">time_t</span> <em class="structfield"><code><a name="Itdb-Track.time-modified"></a>time_modified</code></em>;</span></p></td>
<td>The time the track was last modified</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">time_t</span> <em class="structfield"><code><a name="Itdb-Track.time-played"></a>time_played</code></em>;</span></p></td>
<td>The time the track was last played</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.bookmark-time"></a>bookmark_time</code></em>;</span></p></td>
<td>The time, in milliseconds, that the track will
start playing at. This is used for AudioBook
filetypes (.aa and .m4b). Note that there is
also a bookmark value in the play counts file
that will be set by the iPod and can be used
instead of this value.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.rating"></a>rating</code></em>;</span></p></td>
<td>The track rating (stars * <a class="link" href="libgpod-Tracks.html#ITDB-RATING-STEP:CAPS" title="ITDB_RATING_STEP"><span class="type">ITDB_RATING_STEP</span></a>)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.playcount"></a>playcount</code></em>;</span></p></td>
<td>The number of times the track has been played</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.playcount2"></a>playcount2</code></em>;</span></p></td>
<td>This also stores the play count of the
track. It is unclear if this ever differs
from the above value. During sync, this is set
to the same value as <em class="parameter"><code>playcount</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.recent-playcount"></a>recent_playcount</code></em>;</span></p></td>
<td>The number of times the track was played since
the last sync.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> <em class="structfield"><code><a name="Itdb-Track.transferred"></a>transferred</code></em>;</span></p></td>
<td>Whether the file been transferred to iPod.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint16"><span class="type">gint16</span></a> <em class="structfield"><code><a name="Itdb-Track.BPM"></a>BPM</code></em>;</span></p></td>
<td>BPM (beats per minute) of the track</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.app-rating"></a>app_rating</code></em>;</span></p></td>
<td>The last rating set by an application (e.g.
iTunes). If the rating on the iPod and the
<em class="parameter"><code>rating</code></em> field above differ, the original
rating is copied here and the new rating is
stored in <em class="parameter"><code>rating</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.type1"></a>type1</code></em>;</span></p></td>
<td>CBR MP3s and AAC are 0x00, VBR MP3s are 0x01</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.type2"></a>type2</code></em>;</span></p></td>
<td>MP3s are 0x01, AAC are 0x00</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.compilation"></a>compilation</code></em>;</span></p></td>
<td>Flag to mark the track as a compilation. True
if set to 0x1, false if set to 0x0.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.starttime"></a>starttime</code></em>;</span></p></td>
<td>The offset, in milliseconds, at which the song
will start playing.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.stoptime"></a>stoptime</code></em>;</span></p></td>
<td>The offset, in milliseconds, at which the song
will stop playing.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.checked"></a>checked</code></em>;</span></p></td>
<td>Flag for whether the track is checked. True if
set to 0x0, false if set to 0x1</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> <em class="structfield"><code><a name="Itdb-Track.dbid"></a>dbid</code></em>;</span></p></td>
<td>Unique database ID that identifies this song
across the databases on the iPod. For example,
this id joins an iTunesDB mhit with an
ArtworkDB mhii.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.drm-userid"></a>drm_userid</code></em>;</span></p></td>
<td>Apple Store/Audible User ID (for DRM'ed files
only, set to 0 otherwise).</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.visible"></a>visible</code></em>;</span></p></td>
<td>If this value is 1, the song is visible on the
iPod. All other values cause the file to be
hidden.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.filetype-marker"></a>filetype_marker</code></em>;</span></p></td>
<td>This appears to always be 0 on hard drive based
iPods, but for the iTunesDB that is written to
an iPod Shuffle, iTunes 4.7.1 writes out the
file's type as an ANSI string(!). For example,
a MP3 file has a filetype of 0x4d503320 ->
0x4d = 'M', 0x50 = 'P', 0x33 = '3', 0x20 =
<space>. This is set to the filename
extension by libgpod when copying the track to
the iPod.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.artwork-count"></a>artwork_count</code></em>;</span></p></td>
<td>The number of album artwork items associated
with this song. libgpod updates this value
when syncing.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.artwork-size"></a>artwork_size</code></em>;</span></p></td>
<td>The total size of artwork (in bytes) attached
to this song, when it is converted to JPEG
format. Observed in dbversion 0x0b and with
an iPod Photo. libgpod updates this value when
syncing.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">float</span> <em class="structfield"><code><a name="Itdb-Track.samplerate2"></a>samplerate2</code></em>;</span></p></td>
<td>The sample rate of the song expressed as an
IEEE 32 bit floating point number. It is
uncertain why this is here. libgpod will set
this when adding a track.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.unk126"></a>unk126</code></em>;</span></p></td>
<td>Unknown, but always seems to be 0xffff for
MP3/AAC songs, 0x0 for uncompressed songs
(like WAVE format), 0x1 for Audible. libgpod
will try to set this when adding a new track.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk132"></a>unk132</code></em>;</span></p></td>
<td>Unknown</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">time_t</span> <em class="structfield"><code><a name="Itdb-Track.time-released"></a>time_released</code></em>;</span></p></td>
<td>The date/time the track was added to the iTunes
music store? For podcasts this is the release
date that is displayed next to the title in the
Podcast playlist.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.unk144"></a>unk144</code></em>;</span></p></td>
<td>Unknown, but MP3 songs appear to be always
0x000c, AAC songs are always 0x0033, Audible
files are 0x0029, WAV files are 0x0. libgpod
will attempt to set this value when adding a
track.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.explicit-flag"></a>explicit_flag</code></em>;</span></p></td>
<td>Flag to mark a track as "explicit" in iTunes.
True if to 0x1, false if set to 0x0.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk148"></a>unk148</code></em>;</span></p></td>
<td>Unknown - used for Apple Store DRM songs
(always 0x01010100?), zero otherwise</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk152"></a>unk152</code></em>;</span></p></td>
<td>Unknown</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.skipcount"></a>skipcount</code></em>;</span></p></td>
<td>The number of times the track has been skipped.
(Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.recent-skipcount"></a>recent_skipcount</code></em>;</span></p></td>
<td>The number of times the track was skipped since
the last sync.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.last-skipped"></a>last_skipped</code></em>;</span></p></td>
<td>The time the track was last skipped. (Added in
dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.has-artwork"></a>has_artwork</code></em>;</span></p></td>
<td>Whether the track has artwork.
True if set to 0x01, false if set to 0x02.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.skip-when-shuffling"></a>skip_when_shuffling</code></em>;</span></p></td>
<td>Flag to skip the track when shuffling. True if
set to 0x01, false if set to 0x00. Audiobooks
(.aa and .m4b) always seem to be skipped when
shuffling, regardless of this flag.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.remember-playback-position"></a>remember_playback_position</code></em>;</span></p></td>
<td>Flag to remember playback position.
True when set to 0x01, false when set to 0x00.
Audiobooks (.aa and .m4b) always seem to
remember the playback position, regardless of
this flag.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.flag4"></a>flag4</code></em>;</span></p></td>
<td>Used for podcasts, 0x00 otherwise. If set to
0x01 the "Now Playing" page will show
Title/Album, when set to 0x00 it will also show
the Artist. When set to 0x02 a sub-page
(middle button) with further information about
the track will be shown.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> <em class="structfield"><code><a name="Itdb-Track.dbid2"></a>dbid2</code></em>;</span></p></td>
<td>The purpose of the field is unclear. If not
set, libgpod will set this to the same value as
<em class="parameter"><code>dbid</code></em> when adding a track. (With iTunes, since
dbversion 0x12, this field value differs from
<em class="parameter"><code>dbid</code></em>.)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.lyrics-flag"></a>lyrics_flag</code></em>;</span></p></td>
<td>Whether the track has lyrics (e.g. it has a
USLT ID3 tag in an MP3 or a <em class="parameter"><code>lyr</code></em> atom in an
MP4). True if set to 0x01, false if set to
0x00.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.movie-flag"></a>movie_flag</code></em>;</span></p></td>
<td>Whether the track is a movie. True if set to
0x01, false if set to 0x00.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.mark-unplayed"></a>mark_unplayed</code></em>;</span></p></td>
<td>A value of 0x02 marks a podcast as unplayed on
the iPod, with a bullet. Once played it is set
to 0x01. Non-podcasts have this set to 0x01.
(Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint8"><span class="type">guint8</span></a> <em class="structfield"><code><a name="Itdb-Track.unk179"></a>unk179</code></em>;</span></p></td>
<td>Unknown, always 0x00 so far. (Added in
dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk180"></a>unk180</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.pregap"></a>pregap</code></em>;</span></p></td>
<td>The number of samples of silence before the
track starts (for gapless playback).</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> <em class="structfield"><code><a name="Itdb-Track.samplecount"></a>samplecount</code></em>;</span></p></td>
<td>The number of samples in the track (for gapless
playback).</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk196"></a>unk196</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.postgap"></a>postgap</code></em>;</span></p></td>
<td>The number of samples of silence at the end of
the track (for gapless playback).</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk204"></a>unk204</code></em>;</span></p></td>
<td>Unknown. Appears to be 0x1 for files encoded
using the MP3 encoder, 0x0 otherwise. (Added
in dbversion 0x0c, first values observed in
0x0d.)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.mediatype"></a>mediatype</code></em>;</span></p></td>
<td>The type of file. It must be set to 0x00000001
for audio files, and set to 0x00000002 for
video files. If set to 0x00, the files show up
in both, the audio menus ("Songs", "Artists",
etc.) and the video menus ("Movies", "Music
Videos", etc.). It appears to be set to 0x20
for music videos, and if set to 0x60 the file
shows up in "TV Shows" rather than "Movies".
<p>
The following list summarizes all observed types:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">0x00 00 00 00 - Audio/Video</li>
<li class="listitem">0x00 00 00 01 - Audio</li>
<li class="listitem">0x00 00 00 02 - Video</li>
<li class="listitem">0x00 00 00 04 - Podcast</li>
<li class="listitem">0x00 00 00 06 - Video Podcast</li>
<li class="listitem">0x00 00 00 08 - Audiobook</li>
<li class="listitem">0x00 00 00 20 - Music Video</li>
<li class="listitem">0x00 00 00 40 - TV Show (shows up ONLY
in TV Shows)</li>
<li class="listitem">0x00 00 00 60 - TV Show (shows up in
the Music lists as well)</li>
</ul></div>
</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.season-nr"></a>season_nr</code></em>;</span></p></td>
<td>The season number of the track (only used for
TV Shows).</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.episode-nr"></a>episode_nr</code></em>;</span></p></td>
<td>The episode number of the track (only used for
TV Shows). Although this is not displayed on
the iPod, the episodes are sorted by episode
number.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk220"></a>unk220</code></em>;</span></p></td>
<td>Unknown. This has something to do with
protected files. It is set to 0x0 for
non-protected files.</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk224"></a>unk224</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk228"></a>unk228</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk232"></a>unk232</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk236"></a>unk236</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk240"></a>unk240</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk244"></a>unk244</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x13)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.gapless-data"></a>gapless_data</code></em>;</span></p></td>
<td>The size in bytes from first Synch Frame
(which is usually the XING frame that
includes the LAME tag) until the 8th before
the last frame. The gapless playback does not
work for MP3 files if this is set to zero. For
AAC tracks, this may be zero. (Added in
dbversion 0x13)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.unk252"></a>unk252</code></em>;</span></p></td>
<td>Unknown. (Added in dbversion 0x0c)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.gapless-track-flag"></a>gapless_track_flag</code></em>;</span></p></td>
<td>If set to 1, this track has gapless playback
data. (Added in dbversion 0x13)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.gapless-album-flag"></a>gapless_album_flag</code></em>;</span></p></td>
<td>If set to 1, this track does not use
crossfading in iTunes. (Added in dbversion
0x13)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint16"><span class="type">guint16</span></a> <em class="structfield"><code><a name="Itdb-Track.obsolete"></a>obsolete</code></em>;</span></p></td>
<td></td>
</tr>
<tr>
<td><p><span class="term">struct <a class="link" href="libgpod-Artwork.html#Itdb-Artwork" title="struct Itdb_Artwork"><span class="type">_Itdb_Artwork</span></a> *<em class="structfield"><code><a name="Itdb-Track.artwork"></a>artwork</code></em>;</span></p></td>
<td>An <a class="link" href="libgpod-Artwork.html#Itdb-Artwork" title="struct Itdb_Artwork"><span class="type">Itdb_Artwork</span></a> for cover art</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> <em class="structfield"><code><a name="Itdb-Track.mhii-link"></a>mhii_link</code></em>;</span></p></td>
<td>This is set to the id of the corresponding
ArtworkDB mhii, used for sparse artwork
support. (Since libgpod-0.7.0)</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int1"></a>reserved_int1</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int2"></a>reserved_int2</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int3"></a>reserved_int3</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int4"></a>reserved_int4</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int5"></a>reserved_int5</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved-int6"></a>reserved_int6</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="libgpod-Tracks.html#Itdb-Track-Private" title="Itdb_Track_Private"><span class="type">Itdb_Track_Private</span></a> *<em class="structfield"><code><a name="Itdb-Track.priv"></a>priv</code></em>;</span></p></td>
<td>Private data</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved2"></a>reserved2</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved3"></a>reserved3</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved4"></a>reserved4</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved5"></a>reserved5</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.reserved6"></a>reserved6</code></em>;</span></p></td>
<td>Reserved for future use</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> <em class="structfield"><code><a name="Itdb-Track.usertype"></a>usertype</code></em>;</span></p></td>
<td>For use by application</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="Itdb-Track.userdata"></a>userdata</code></em>;</span></p></td>
<td>For use by application</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#ItdbUserDataDuplicateFunc" title="ItdbUserDataDuplicateFunc ()"><span class="type">ItdbUserDataDuplicateFunc</span></a> <em class="structfield"><code><a name="Itdb-Track.userdata-duplicate"></a>userdata_duplicate</code></em>;</span></p></td>
<td>A function to duplicate <span class="type">userdata</span>
</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#ItdbUserDataDestroyFunc" title="ItdbUserDataDestroyFunc ()"><span class="type">ItdbUserDataDestroyFunc</span></a> <em class="structfield"><code><a name="Itdb-Track.userdata-destroy"></a>userdata_destroy</code></em>;</span></p></td>
<td>A function to free <span class="type">userdata</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="Itdb-Track-Private"></a><h3>Itdb_Track_Private</h3>
<pre class="programlisting">typedef struct {
guint32 album_id;
guint32 artist_id;
guint32 composer_id;
} Itdb_Track_Private;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="Itdb-Mediatype"></a><h3>enum Itdb_Mediatype</h3>
<pre class="programlisting">typedef enum {
ITDB_MEDIATYPE_AUDIO = (1 << 0),
ITDB_MEDIATYPE_MOVIE = (1 << 1),
ITDB_MEDIATYPE_PODCAST = (1 << 2),
ITDB_MEDIATYPE_AUDIOBOOK = (1 << 3),
ITDB_MEDIATYPE_MUSICVIDEO = (1 << 5),
ITDB_MEDIATYPE_TVSHOW = (1 << 6),
ITDB_MEDIATYPE_RINGTONE = (1 << 14),
ITDB_MEDIATYPE_RENTAL = (1 << 15),
ITDB_MEDIATYPE_ITUNES_EXTRA = (1 << 16),
ITDB_MEDIATYPE_MEMO = (1 << 20),
ITDB_MEDIATYPE_ITUNES_U = (1 << 21),
ITDB_MEDIATYPE_EPUB_BOOK = (1 << 22),
ITDB_MEDIATYPE_PDF_BOOK = (1 << 23)
} Itdb_Mediatype;
</pre>
<p>
Mediatype definitions
</p>
<p>
The mediatype is used to determine what menu a track appears under. For
example, setting the mediatype to <a class="link" href="libgpod-Tracks.html#ITDB-MEDIATYPE-PODCAST:CAPS"><span class="type">ITDB_MEDIATYPE_PODCAST</span></a> makes the track
appear on the Podcast menu. Media type is a bitfield, so it can be a
binary combination of these constants, make sure to use binary operators
when you want to operate on media types (eg use a binary AND in
preference over a straight == when you want to test if a track has a
given media type).
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><a name="ITDB-MEDIATYPE-AUDIO:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_AUDIO</code></span></p></td>
<td>Audio files
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-MOVIE:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_MOVIE</code></span></p></td>
<td>Movies
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-PODCAST:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_PODCAST</code></span></p></td>
<td>Podcasts
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-AUDIOBOOK:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_AUDIOBOOK</code></span></p></td>
<td>Audio books
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-MUSICVIDEO:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_MUSICVIDEO</code></span></p></td>
<td>Music videos
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-TVSHOW:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_TVSHOW</code></span></p></td>
<td>TV Shows
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-RINGTONE:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_RINGTONE</code></span></p></td>
<td>Ringtone
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-RENTAL:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_RENTAL</code></span></p></td>
<td>Rental
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-ITUNES-EXTRA:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_ITUNES_EXTRA</code></span></p></td>
<td>?
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-MEMO:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_MEMO</code></span></p></td>
<td>Memo
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-ITUNES-U:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_ITUNES_U</code></span></p></td>
<td>iTunes U
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-EPUB-BOOK:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_EPUB_BOOK</code></span></p></td>
<td>
</td>
</tr>
<tr>
<td><p><a name="ITDB-MEDIATYPE-PDF-BOOK:CAPS"></a><span class="term"><code class="literal">ITDB_MEDIATYPE_PDF_BOOK</code></span></p></td>
<td>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.5.0</p>
</div>
<hr>
<div class="refsect2">
<a name="ITDB-RATING-STEP:CAPS"></a><h3>ITDB_RATING_STEP</h3>
<pre class="programlisting">#define ITDB_RATING_STEP 20
</pre>
<p>
The multiplier for each star in <span class="type">track</span>->rating
</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-new"></a><h3>itdb_track_new ()</h3>
<pre class="programlisting"><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * itdb_track_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Creates an empty <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the new <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>, free it with <a class="link" href="libgpod-Tracks.html#itdb-track-free" title="itdb_track_free ()"><code class="function">itdb_track_free()</code></a> when no
longer needed</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-free"></a><h3>itdb_track_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_free (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);</pre>
<p>
Frees the memory used by <em class="parameter"><code>track</code></em>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-add"></a><h3>itdb_track_add ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_add (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>,
<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> pos</code></em>);</pre>
<p>
Adds <em class="parameter"><code>track</code></em> to <em class="parameter"><code>itdb->tracks</code></em> at position <em class="parameter"><code>pos</code></em> (or at the end if pos
is -1). The application is responsible to also add it to the master
playlist. The <em class="parameter"><code>itdb</code></em> gets ownership of the <em class="parameter"><code>track</code></em> and will take care of
freeing the memory it uses when it's no longer necessary.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>itdb</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pos</code></em> :</span></p></td>
<td>position of the track to add</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-remove"></a><h3>itdb_track_remove ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_remove (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);</pre>
<p>
Removes <em class="parameter"><code>track</code></em> from the <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> it's associated with, and frees the
memory it uses. It doesn't remove the track from the playlists it may have
been added to, in particular it won't be removed from the master playlist.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-unlink"></a><h3>itdb_track_unlink ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_unlink (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);</pre>
<p>
Removes <em class="parameter"><code>track</code></em> from the <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> it's associated with, but do not free
memory. It doesn't remove the track from the playlists it may have been
added to, in particular it won't be removed from the master playlist.
<em class="parameter"><code>track->itdb</code></em> is set to NULL.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-duplicate"></a><h3>itdb_track_duplicate ()</h3>
<pre class="programlisting"><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * itdb_track_duplicate (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *tr</code></em>);</pre>
<p>
Duplicates an existing track
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tr</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-by-id"></a><h3>itdb_track_by_id ()</h3>
<pre class="programlisting"><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * itdb_track_by_id (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> id</code></em>);</pre>
<p>
Looks up a track using its ID in <em class="parameter"><code>itdb</code></em>.
</p>
<p>
Looking up tracks by ID is not really a good idea because the IDs
are created by itdb just before export. The functions are here
because they are needed during import of the iTunesDB which is
referencing tracks by IDs.
</p>
<p>
This function is very slow (linear in the number of tracks
contained in the database). If you need to lookup many IDs use
<a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-create" title="itdb_track_id_tree_create ()"><code class="function">itdb_track_id_tree_create()</code></a>, <a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-destroy" title="itdb_track_id_tree_destroy ()"><code class="function">itdb_track_id_tree_destroy()</code></a>, and
<a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-by-id" title="itdb_track_id_tree_by_id ()"><code class="function">itdb_track_id_tree_by_id()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>itdb</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>id</code></em> :</span></p></td>
<td>ID of the track to look for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> with the ID <em class="parameter"><code>id</code></em> or NULL if the ID cannot be
found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-id-tree-create"></a><h3>itdb_track_id_tree_create ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="returnvalue">GTree</span></a> * itdb_track_id_tree_create (<em class="parameter"><code><a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a> *itdb</code></em>);</pre>
<p>
Creates a balanced-binary tree for quick ID lookup that is used in
<code class="function">itdb_track_by_id_tree()</code>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>itdb</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-The-Itdb-iTunesDB-structure.html#Itdb-iTunesDB" title="struct Itdb_iTunesDB"><span class="type">Itdb_iTunesDB</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> indexed by track IDs to be freed with
<a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-destroy" title="itdb_track_id_tree_destroy ()"><code class="function">itdb_track_id_tree_destroy()</code></a> when no longer used</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-id-tree-destroy"></a><h3>itdb_track_id_tree_destroy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_id_tree_destroy (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> *idtree</code></em>);</pre>
<p>
Frees the memory used by <em class="parameter"><code>idtree</code></em>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>idtree</code></em> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-id-tree-by-id"></a><h3>itdb_track_id_tree_by_id ()</h3>
<pre class="programlisting"><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="returnvalue">Itdb_Track</span></a> * itdb_track_id_tree_by_id (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> *idtree</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> id</code></em>);</pre>
<p>
Lookup an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> by <em class="parameter"><code>id</code></em> using <em class="parameter"><code>idtree</code></em> for faster lookup
(compared to <a class="link" href="libgpod-Tracks.html#itdb-track-by-id" title="itdb_track_by_id ()"><code class="function">itdb_track_by_id()</code></a>)
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>idtree</code></em> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/glib/unstable/glib-Balanced-Binary-Trees.html#GTree"><span class="type">GTree</span></a> created using <a class="link" href="libgpod-Tracks.html#itdb-track-id-tree-create" title="itdb_track_id_tree_create ()"><code class="function">itdb_track_id_tree_create()</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>id</code></em> :</span></p></td>
<td>the ID of the track to search for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> whose ID is <em class="parameter"><code>id</code></em>, or NULL if such a track
couldn't be found</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-get-thumbnail"></a><h3>itdb_track_get_thumbnail ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> itdb_track_get_thumbnail (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> width</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> height</code></em>);</pre>
<p>
Get a thumbnail representing the cover associated with the current track,
scaling it if appropriate. If either height or width is -1, then the biggest
unscaled thumbnail available will be returned.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
<td>width of the pixbuf to retrieve, -1 for the biggest possible size
(with no scaling)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
<td>height of the pixbuf to retrieve, -1 for the biggest possible size
(with no scaling)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-The-GdkPixbuf-Structure.html#GdkPixbuf"><span class="type">GdkPixbuf</span></a> that must be unreffed when no longer used, NULL
if no artwork could be found or if libgpod is compiled without GdkPixbuf
support</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.7.0</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-has-thumbnails"></a><h3>itdb_track_has_thumbnails ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> itdb_track_has_thumbnails (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);</pre>
<p>
Determine if a <em class="parameter"><code>track</code></em> has thumbnails
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if <em class="parameter"><code>track</code></em> has artwork available, FALSE otherwise</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.7.0</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-set-thumbnails"></a><h3>itdb_track_set_thumbnails ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> itdb_track_set_thumbnails (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>);</pre>
<p>
Uses the image contained in <em class="parameter"><code>filename</code></em> to generate iPod thumbnails. The image
can be in any format supported by gdk-pixbuf. To save memory, the thumbnails
will only be generated when necessary, i.e. when <code class="function">itdb_save()</code> or a similar
function is called.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>filename</code></em> :</span></p></td>
<td>image file to use as a thumbnail</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the thumbnail could be added, FALSE otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.3.0</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-set-thumbnails-from-data"></a><h3>itdb_track_set_thumbnails_from_data ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> itdb_track_set_thumbnails_from_data (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *image_data</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gsize"><span class="type">gsize</span></a> image_data_len</code></em>);</pre>
<p>
Uses <em class="parameter"><code>image_data</code></em> to generate iPod thumbnails. The image can be in
any format supported by gdk-pixbuf. To save memory, the thumbnails
will only be generated when necessary, i.e. when <code class="function">itdb_save()</code> or a
similar function is called.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>image_data</code></em> :</span></p></td>
<td>data used to create the thumbnail (the raw contents of
an image file)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>image_data_len</code></em> :</span></p></td>
<td>length of above data block</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the thumbnail could be added, FALSE otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.4.0</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-set-thumbnails-from-pixbuf"></a><h3>itdb_track_set_thumbnails_from_pixbuf ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> itdb_track_set_thumbnails_from_pixbuf
(<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> pixbuf</code></em>);</pre>
<p>
Uses <em class="parameter"><code>pixbuf</code></em> to generate iPod thumbnails. To save memory, the thumbnails
will only be generated when necessary, i.e. when <code class="function">itdb_save()</code> or a
similar function is called.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pixbuf</code></em> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/gdk-pixbuf/unstable/gdk-pixbuf-The-GdkPixbuf-Structure.html#GdkPixbuf"><span class="type">GdkPixbuf</span></a> used to generate the thumbnail</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the thumbnail could be added, FALSE otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 0.5.0</p>
</div>
<hr>
<div class="refsect2">
<a name="itdb-track-remove-thumbnails"></a><h3>itdb_track_remove_thumbnails ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> itdb_track_remove_thumbnails (<em class="parameter"><code><a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a> *track</code></em>);</pre>
<p>
Removes the thumbnails associated with <em class="parameter"><code>track</code></em>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>track</code></em> :</span></p></td>
<td>an <a class="link" href="libgpod-Tracks.html#Itdb-Track" title="struct Itdb_Track"><span class="type">Itdb_Track</span></a>
</td>
</tr></tbody>
</table></div>
<p class="since">Since 0.3.0</p>
</div>
</div>
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