]> git.sesse.net Git - vlc/blob - src/playlist/loadsave.c
Auto load and save media library (Closes:#433)
[vlc] / src / playlist / loadsave.c
1 /*****************************************************************************
2  * loadsave.c : Playlist loading / saving functions
3  *****************************************************************************
4  * Copyright (C) 1999-2004 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Samuel Hocevar <sam@zoy.org>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22  *****************************************************************************/
23 #include <stdlib.h>                                      /* free(), strtol() */
24 #include <stdio.h>                                              /* sprintf() */
25 #include <string.h>                                            /* strerror() */
26 #include <errno.h>
27
28 #include <vlc/vlc.h>
29 #include <vlc/vout.h>
30 #include <vlc/sout.h>
31 #include <vlc/input.h>
32
33 #include "vlc_playlist.h"
34 #include "charset.h"
35
36 #if defined( WIN32 ) || defined( UNDER_CE )
37 #   define DIR_SEP "\\"
38 #else
39 #   define DIR_SEP "/"
40 #endif
41
42 /**
43  * Import a playlist file at a given point of a given view
44  * \param p_playlist the playlist to which the new items will be added
45  * \param psz_filename the name of the playlistfile to import
46  * \return VLC_SUCCESS on success
47  */
48 int playlist_Import( playlist_t * p_playlist, const char *psz_filename,
49                      playlist_item_t *p_root, vlc_bool_t b_only_there )
50 {
51     char *psz_uri, *psz_opt;
52     input_item_t *p_input;
53
54     asprintf( &psz_uri, "file/playlist://%s", psz_filename );
55     p_input = input_ItemNewExt( p_playlist, psz_uri, "playlist", 0, NULL, -1 );
56     if( b_only_there )
57     {
58         asprintf( &psz_opt, "parent-item=%i", p_root->i_id );
59         vlc_input_item_AddOption( p_input, psz_opt );
60         free( psz_opt );
61     }
62     playlist_PlaylistAddInput( p_playlist, p_input, PLAYLIST_APPEND,
63                                PLAYLIST_END );
64     input_Read( p_playlist, p_input, VLC_TRUE );
65     free( psz_uri );
66     return VLC_SUCCESS;
67 }
68
69 /**
70  * Export a node of the playlist to a certain type of playlistfile
71  *
72  * \param p_playlist the playlist to export
73  * \param psz_filename the location where the exported file will be saved
74  * \param p_export_root the root node to export
75  * \param psz_type the type of playlist file to create.
76  * \return VLC_SUCCESS on success
77  */
78 int playlist_Export( playlist_t * p_playlist, const char *psz_filename ,
79                      playlist_item_t *p_export_root,const char *psz_type )
80 {
81     module_t *p_module;
82     playlist_export_t *p_export;
83
84     if( p_export_root == NULL ) return VLC_EGENERIC;
85
86     msg_Info( p_playlist, "saving %s to file %s",
87                     p_export_root->p_input->psz_name, psz_filename );
88
89     /* Prepare the playlist_export_t structure */
90     p_export = (playlist_export_t *)malloc( sizeof(playlist_export_t) );
91     if( !p_export)
92     {
93         msg_Err( p_playlist, "out of memory" );
94         return VLC_ENOMEM;
95     }
96     p_export->psz_filename = NULL;
97     if ( psz_filename )
98         p_export->psz_filename = strdup( psz_filename );
99     p_export->p_file = utf8_fopen( psz_filename, "wt" );
100     if( !p_export->p_file )
101     {
102         msg_Err( p_playlist , "could not create playlist file %s"
103                  " (%s)", psz_filename, strerror(errno) );
104         return VLC_EGENERIC;
105     }
106
107     p_export->p_root = p_export_root;
108
109     /* Lock the playlist */
110     vlc_mutex_lock( &p_playlist->object_lock );
111     p_playlist->p_private = (void *)p_export;
112
113     /* And call the module ! All work is done now */
114     p_module = module_Need( p_playlist, "playlist export", psz_type, VLC_TRUE);
115     if( !p_module )
116     {
117         msg_Warn( p_playlist, "exporting playlist failed" );
118         vlc_mutex_unlock( &p_playlist->object_lock );
119         return VLC_ENOOBJ;
120     }
121     module_Unneed( p_playlist , p_module );
122
123     /* Clean up */
124     fclose( p_export->p_file );
125     if ( p_export->psz_filename )
126         free( p_export->psz_filename );
127     free ( p_export );
128     p_playlist->p_private = NULL;
129     vlc_mutex_unlock( &p_playlist->object_lock );
130
131     return VLC_SUCCESS;
132 }
133
134 int playlist_MLLoad( playlist_t *p_playlist )
135 {
136     char *psz_uri, *psz_homedir =p_playlist->p_vlc->psz_homedir;
137     input_item_t *p_input;
138
139     if( !config_GetInt( p_playlist, "media-library") ) return VLC_SUCCESS;
140     if( !psz_homedir )
141     {
142         msg_Err( p_playlist, "no home directory, cannot load media library") ;
143         return VLC_EGENERIC;
144     }
145     asprintf( &psz_uri, "file/xspf-open://%s" DIR_SEP CONFIG_DIR DIR_SEP
146                         "ml.xsp", psz_homedir );
147
148     p_input = input_ItemNewExt( p_playlist, psz_uri,
149                                 _("Media Library"), 0, NULL, -1 );
150     p_playlist->p_ml_category->p_input = p_input;
151     p_playlist->p_ml_onelevel->p_input = p_input;
152
153     p_playlist->b_doing_ml = VLC_TRUE;
154     stats_TimerStart( p_playlist, "ML Load", STATS_TIMER_ML_LOAD );
155     input_Read( p_playlist, p_input, VLC_TRUE );
156     stats_TimerStop( p_playlist,STATS_TIMER_ML_LOAD );
157     p_playlist->b_doing_ml = VLC_FALSE;
158
159     free( psz_uri );
160     return VLC_SUCCESS;
161 }
162
163 int playlist_MLDump( playlist_t *p_playlist )
164 {
165     char *psz_uri, *psz_homedir =p_playlist->p_vlc->psz_homedir;
166     if( !config_GetInt( p_playlist, "media-library") ) return VLC_SUCCESS;
167     if( !psz_homedir )
168     {
169         msg_Err( p_playlist, "no home directory, cannot load media library") ;
170         return VLC_EGENERIC;
171     }
172     asprintf( &psz_uri, "%s" DIR_SEP CONFIG_DIR DIR_SEP
173                         "ml.xsp",  psz_homedir );
174     stats_TimerStart( p_playlist, "ML Dump", STATS_TIMER_ML_DUMP );
175     playlist_Export( p_playlist, psz_uri, p_playlist->p_ml_category,
176                      "export-xspf" );
177     stats_TimerStop( p_playlist, STATS_TIMER_ML_DUMP );
178
179     free( psz_uri );
180     return VLC_SUCCESS;
181 }