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+/*
+ $Id: cddb_track.h,v 1.20 2006/10/15 06:51:11 airborne Exp $
+
+ Copyright (C) 2003, 2004, 2005 Kris Verbeeck <airborne@advalvas.be>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#ifndef CDDB_TRACK_H
+#define CDDB_TRACK_H 1
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+
+/**
+ * The CDDB track structure. Contains all information associated with
+ * a single CD track. This structure will be used to populate the
+ * tracks linked list of the cddb_disc_s structure.
+ */
+typedef struct cddb_track_s cddb_track_t;
+
+
+/* --- construction / destruction */
+
+
+/**
+ * Creates a new CDDB track structure.
+ *
+ * @return The CDDB track structure or NULL if memory allocation failed.
+ */
+cddb_track_t *cddb_track_new(void);
+
+/**
+ * Free all resources associated with the given CDDB track structure.
+ * The linked list pointer (next) will not be touched. So you have to
+ * make sure that no other tracks are attached to this one before
+ * calling this function.
+ *
+ * @param track The CDDB track structure.
+ */
+void cddb_track_destroy(cddb_track_t *track);
+
+/**
+ * Creates a clone of the given track.
+ *
+ * @param track The CDDB track structure.
+ */
+cddb_track_t *cddb_track_clone(const cddb_track_t *track);
+
+
+/* --- getters & setters --- */
+
+
+/**
+ * Get the number of this track. This track number starts counting at
+ * 1. If the track is invalid or the track number is not defined -1
+ * will be returned.
+ *
+ * @param track The CDDB track structure.
+ * @return The track number.
+ */
+int cddb_track_get_number(const cddb_track_t *track);
+
+/**
+ * Get the frame offset of this track on the disc. If the track is
+ * invalid -1 will be returned.
+ *
+ * @param track The CDDB track structure.
+ * @return The frame offset.
+ */
+int cddb_track_get_frame_offset(const cddb_track_t *track);
+
+/**
+ * Set the frame offset of this track on the disc.
+ *
+ * @param track The CDDB track structure.
+ * @param offset The frame offset.
+ * @return The frame offset.
+ */
+void cddb_track_set_frame_offset(cddb_track_t *track, int offset);
+
+/**
+ * Get the length of the track in seconds. If the track length is not
+ * defined this routine will try to calculate it using the frame
+ * offsets of the tracks and the total disc length. These
+ * calculations will do no rounding to the nearest second. So it is
+ * possible that the sum off all track lengths does not add up to the
+ * actual disc length. If the length can not be calculated -1 will be
+ * returned.
+ *
+ * @param track The CDDB track structure.
+ * @return The track length.
+ */
+int cddb_track_get_length(cddb_track_t *track);
+
+/**
+ * Set the length of the track. If no frame offset is yet known for
+ * this track, and it is part of a disc, then the frame offset will be
+ * calculated.
+ *
+ * @param track The CDDB track structure.
+ * @param length The track length in seconds.
+ */
+void cddb_track_set_length(cddb_track_t *track, int length);
+
+/**
+ * Get the track title. If the track is invalid or no title is set
+ * for this track then NULL will be returned.
+ *
+ * @param track The CDDB track structure.
+ * @return The track title.
+ */
+const char *cddb_track_get_title(const cddb_track_t *track);
+
+/**
+ * Set the track title. If the track already had a title, then the
+ * memory for that string will be freed. The new title will be copied
+ * into a new chunk of memory. If the given title is NULL, then the
+ * title of the track will be deleted.
+ *
+ * @param track The CDDB track structure.
+ * @param title The new track title.
+ */
+void cddb_track_set_title(cddb_track_t *track, const char *title);
+
+/**
+ * Append to the track title. If the track does not have a title yet,
+ * then a new one will be created from the given string, otherwise
+ * that string will be appended to the existing title.
+ *
+ * @param track The CDDB track structure.
+ * @param title Part of the track title.
+ */
+void cddb_track_append_title(cddb_track_t *track, const char *title);
+
+/**
+ * Get the track artist name. If there is no track artist defined,
+ * the disc artist will be returned. NULL will be returned if neither
+ * is defined.
+ *
+ * @param track The CDDB track structure.
+ */
+const char *cddb_track_get_artist(cddb_track_t *track);
+
+/**
+ * Set the track artist name. If the track already had an artist
+ * name, then the memory for that string will be freed. The new
+ * artist name will be copied into a new chunk of memory. If the given artist
+ * name is NULL, then the artist name of the track will be deleted.
+ *
+ * @param track The CDDB track structure.
+ * @param artist The new track artist name.
+ */
+void cddb_track_set_artist(cddb_track_t *track, const char *artist);
+
+/**
+ * Append to the track artist. If the track does not have an artist
+ * yet, then a new one will be created from the given string,
+ * otherwise that string will be appended to the existing artist.
+ *
+ * @param track The CDDB track structure.
+ * @param artist Part of the artist name.
+ */
+void cddb_track_append_artist(cddb_track_t *track, const char *artist);
+
+/**
+ * Get the extended track data. If no extended data is set for this
+ * track then NULL will be returned.
+ *
+ * @param track The CDDB track structure.
+ * @return The extended data.
+ */
+const char *cddb_track_get_ext_data(cddb_track_t *track);
+
+/**
+ * Set the extended data for the track. If the track already had
+ * extended data, then the memory for that string will be freed. The
+ * new extended data will be copied into a new chunk of memory. If
+ * the given extended data is NULL, then the existing data will be
+ * deleted.
+ *
+ * @param track The CDDB track structure.
+ * @param ext_data The new extended data.
+ */
+void cddb_track_set_ext_data(cddb_track_t *track, const char *ext_data);
+
+/**
+ * Append to the extended track data. If the track does not have an
+ * extended data section yet, then a new one will be created from the
+ * given string, otherwise that string will be appended to the
+ * existing data.
+ *
+ * @param track The CDDB track structure.
+ * @param ext_data Part of the extended track data.
+ */
+void cddb_track_append_ext_data(cddb_track_t *track, const char *ext_data);
+
+
+/* --- miscellaneous */
+
+
+/**
+ * Copy all data from one track to another. Any fields that are
+ * unavailable in the source track structure will not result in a
+ * reset of the same field in the destination track structure; e.g. if
+ * there is no title in the source track, but there is one in the
+ * destination track, then the destination's title will remain
+ * unchanged.
+ *
+ * @param dst The destination CDDB track structure.
+ * @param src The source CDDB track structure.
+ */
+void cddb_track_copy(cddb_track_t *dst, cddb_track_t *src);
+
+/**
+ * Prints information about the track on stdout. This is just a
+ * debugging routine to display the structure's content. It is used
+ * by cddb_disc_print to print the contents of a complete disc.
+ *
+ * @param track The CDDB track structure.
+ */
+void cddb_track_print(cddb_track_t *track);
+
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* CDDB_TRACK_H */