rockbox/apps/tagcache.h
Miika Pekkarinen 7c4e0c8730 Initial version of tagcache! There are still some bugs in the engine
and much more problems with the UI.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9256 a1c6a512-1295-4272-9138-f99709370657
2006-03-26 11:33:42 +00:00

78 lines
2.3 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Miika Pekkarinen
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _TAGCACHE_H
#define _TAGCACHE_H
#include "id3.h"
enum tag_type { tag_artist = 0, tag_album, tag_genre, tag_title,
tag_filename/*, tag_checksum*/ };
#define TAG_COUNT 5
#ifdef HAVE_DIRCACHE
#define HAVE_TC_RAMCACHE 1
#endif
/* Allow a little drift to the filename ordering. */
#define POS_HISTORY_COUNT 4
/* How many entries we can create in one tag file (for sorting). */
#define TAGFILE_MAX_ENTRIES 20000
#define SEEK_LIST_SIZE 50
#define TAGCACHE_MAX_FILTERS 3
struct tagcache_search {
/* For internal use only. */
int fd;
long seek_list[SEEK_LIST_SIZE];
long filter_tag[TAGCACHE_MAX_FILTERS];
long filter_seek[TAGCACHE_MAX_FILTERS];
int filter_count;
int seek_list_count;
int seek_pos;
long position;
int entry_count;
bool valid;
/* Exported variables. */
bool ramsearch;
int type;
char *result;
int result_len;
long result_seek;
};
bool tagcache_fill_tags(struct mp3entry *id3, const char *filename);
bool tagcache_search(struct tagcache_search *tcs, int tag);
bool tagcache_search_add_filter(struct tagcache_search *tcs,
int tag, int seek);
bool tagcache_get_next(struct tagcache_search *tcs);
void tagcache_search_finish(struct tagcache_search *tcs);
int tagcache_get_progress(void);
#ifdef HAVE_TC_RAMCACHE
bool tagcache_is_ramcache(void);
#endif
void tagcache_init(void);
void tagcache_start_scan(void);
void tagcache_stop_scan(void);
bool tagcache_force_update(void);
#endif