LGPL
[vlc.git] / lib / media_library.c
1 /*****************************************************************************
2  * tree.c: libvlc tags tree functions
3  * Create a tree of the 'tags' of a media_list's medias.
4  *****************************************************************************
5  * Copyright (C) 2007 VLC authors and VideoLAN
6  * $Id$
7  *
8  * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU Lesser General Public License as published by
12  * the Free Software Foundation; either version 2.1 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public License
21  * along with this program; if not, write to the Free Software Foundation,
22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23  *****************************************************************************/
24
25 #ifdef HAVE_CONFIG_H
26 # include "config.h"
27 #endif
28
29 #include <vlc/libvlc.h>
30 #include <vlc/libvlc_media.h>
31 #include <vlc/libvlc_media_list.h>
32 #include <vlc/libvlc_media_library.h>
33 #include <vlc/libvlc_events.h>
34
35 #include <vlc_common.h>
36
37 #include "libvlc_internal.h"
38
39 struct libvlc_media_library_t
40 {
41     libvlc_event_manager_t * p_event_manager;
42     libvlc_instance_t *      p_libvlc_instance;
43     int                      i_refcount;
44     libvlc_media_list_t *    p_mlist;
45 };
46
47
48 /*
49  * Private functions
50  */
51
52 /*
53  * Public libvlc functions
54  */
55
56 /**************************************************************************
57  *       new (Public)
58  **************************************************************************/
59 libvlc_media_library_t *
60 libvlc_media_library_new( libvlc_instance_t * p_inst )
61 {
62     libvlc_media_library_t * p_mlib;
63
64     p_mlib = malloc(sizeof(libvlc_media_library_t));
65
66     if( !p_mlib )
67     {
68         libvlc_printerr( "Not enough memory" );
69         return NULL;
70     }
71
72     p_mlib->p_libvlc_instance = p_inst;
73     p_mlib->i_refcount = 1;
74     p_mlib->p_mlist = NULL;
75
76     p_mlib->p_event_manager = libvlc_event_manager_new( p_mlib, p_inst );
77     if( unlikely(p_mlib->p_event_manager == NULL) )
78     {
79         free(p_mlib);
80         return NULL;
81     }
82
83     return p_mlib;
84 }
85
86 /**************************************************************************
87  *       release (Public)
88  **************************************************************************/
89 void libvlc_media_library_release( libvlc_media_library_t * p_mlib )
90 {
91     p_mlib->i_refcount--;
92
93     if( p_mlib->i_refcount > 0 )
94         return;
95
96     libvlc_event_manager_release( p_mlib->p_event_manager );
97     free( p_mlib );
98 }
99
100 /**************************************************************************
101  *       retain (Public)
102  **************************************************************************/
103 void libvlc_media_library_retain( libvlc_media_library_t * p_mlib )
104 {
105     p_mlib->i_refcount++;
106 }
107
108 /**************************************************************************
109  *       load (Public)
110  *
111  * It doesn't yet load the playlists
112  **************************************************************************/
113 int libvlc_media_library_load( libvlc_media_library_t * p_mlib )
114 {
115     char *psz_datadir = config_GetUserDir( VLC_DATA_DIR );
116     char * psz_uri;
117
118     if( psz_datadir == NULL
119      || asprintf( &psz_uri, "file/xspf-open://%s" DIR_SEP "ml.xsp",
120                   psz_datadir ) == -1 )
121         psz_uri = NULL;
122     free( psz_datadir );
123
124     if( psz_uri == NULL )
125     {
126         libvlc_printerr( "Not enough memory" );
127         return -1;
128     }
129
130     if( p_mlib->p_mlist )
131         libvlc_media_list_release( p_mlib->p_mlist );
132
133     p_mlib->p_mlist = libvlc_media_list_new( p_mlib->p_libvlc_instance );
134
135     int ret = libvlc_media_list_add_file_content( p_mlib->p_mlist, psz_uri );
136     free( psz_uri );
137     return ret;
138 }
139
140 /**************************************************************************
141  *        media_list (Public)
142  **************************************************************************/
143 libvlc_media_list_t *
144 libvlc_media_library_media_list( libvlc_media_library_t * p_mlib )
145 {
146     if( p_mlib->p_mlist )
147         libvlc_media_list_retain( p_mlib->p_mlist );
148     return p_mlib->p_mlist;
149 }