git.sesse.net Git - vlc/blob - 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 #ifdef HAVE_CONFIG_H
  24 # include "config.h"
  25 #endif
  26
  27 #include <vlc_common.h>
  28 #include <vlc_playlist.h>
  29 #include <vlc_events.h>
  30 #include "playlist_internal.h"
  31 #include "config/configuration.h"
  32 #include <vlc_fs.h>
  33 #include <vlc_url.h>
  34 #include <vlc_modules.h>
  35
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #include <unistd.h>
  39
  40 int playlist_Export( playlist_t * p_playlist, const char *psz_filename,
  41                      playlist_item_t *p_export_root, const char *psz_type )
  42 {
  43     if( p_export_root == NULL ) return VLC_EGENERIC;
  44
  45     playlist_export_t *p_export =
  46         vlc_custom_create( p_playlist, sizeof( *p_export ), VLC_OBJECT_GENERIC,
  47                            "playlist export" );
  48     if( !p_export )
  49         return VLC_ENOMEM;
  50
  51     vlc_object_attach( p_export, p_playlist );
  52     msg_Dbg( p_export, "saving %s to file %s",
  53              p_export_root->p_input->psz_name, psz_filename );
  54
  55     int ret = VLC_EGENERIC;
  56
  57     /* Prepare the playlist_export_t structure */
  58     p_export->p_root = p_export_root;
  59     p_export->psz_filename = psz_filename;
  60     p_export->p_file = vlc_fopen( psz_filename, "wt" );
  61     if( p_export->p_file == NULL )
  62         msg_Err( p_export, "could not create playlist file %s (%m)",
  63                  psz_filename );
  64     else
  65     {
  66         module_t *p_module;
  67
  68         /* And call the module ! All work is done now */
  69         playlist_Lock( p_playlist );
  70         p_module = module_need( p_export, "playlist export", psz_type, true );
  71         playlist_Unlock( p_playlist );
  72
  73         if( p_module == NULL )
  74             msg_Err( p_playlist, "could not export playlist" );
  75         else
  76         {
  77             module_unneed( p_export, p_module );
  78             ret = VLC_SUCCESS;
  79         }
  80         fclose( p_export->p_file );
  81    }
  82    vlc_object_release( p_export );
  83    return ret;
  84 }
  85
  86 int playlist_Import( playlist_t *p_playlist, const char *psz_file )
  87 {
  88     input_item_t *p_input;
  89     const char *const psz_option = "meta-file";
  90     char *psz_uri = make_URI( psz_file, NULL );
  91
  92     if( psz_uri == NULL )
  93         return VLC_EGENERIC;
  94
  95     p_input = input_item_NewExt( p_playlist, psz_uri, psz_file,
  96                                  1, &psz_option, VLC_INPUT_OPTION_TRUSTED, -1 );
  97     free( psz_uri );
  98
  99     playlist_AddInput( p_playlist, p_input, PLAYLIST_APPEND, PLAYLIST_END,
 100                        true, false );
 101     return input_Read( p_playlist, p_input );
 102 }
 103
 104 /*****************************************************************************
 105  * A subitem has been added to the Media Library (Event Callback)
 106  *****************************************************************************/
 107 static void input_item_subitem_tree_added( const vlc_event_t * p_event,
 108                                       void * user_data )
 109 {
 110     playlist_t *p_playlist = user_data;
 111     input_item_node_t *p_root =
 112         p_event->u.input_item_subitem_tree_added.p_root;
 113
 114     PL_LOCK;
 115     playlist_InsertInputItemTree ( p_playlist, p_playlist->p_media_library,
 116                                    p_root, 0, false );
 117     PL_UNLOCK;
 118 }
 119
 120 int playlist_MLLoad( playlist_t *p_playlist )
 121 {
 122     input_item_t *p_input;
 123
 124     char *psz_datadir = config_GetUserDir( VLC_DATA_DIR );
 125     if( !psz_datadir ) /* XXX: This should never happen */
 126     {
 127         msg_Err( p_playlist, "no data directory, cannot load media library") ;
 128         return VLC_EGENERIC;
 129     }
 130
 131     char *psz_file;
 132     if( asprintf( &psz_file, "%s" DIR_SEP "ml.xspf", psz_datadir ) == -1 )
 133         psz_file = NULL;
 134     free( psz_datadir );
 135     if( psz_file == NULL )
 136         return VLC_ENOMEM;
 137
 138     /* loosy check for media library file */
 139     struct stat st;
 140     if( vlc_stat( psz_file, &st ) )
 141     {
 142         free( psz_file );
 143         return VLC_EGENERIC;
 144     }
 145
 146     char *psz_uri = make_URI( psz_file, "file/xspf-open" );
 147     free( psz_file );
 148     if( psz_uri == NULL )
 149         return VLC_ENOMEM;
 150
 151     const char *const options[1] = { "meta-file", };
 152     /* that option has to be cleaned in input_item_subitem_tree_added() */
 153     /* vlc_gc_decref() in the same function */
 154     p_input = input_item_NewExt( p_playlist, psz_uri, _("Media Library"),
 155                                  1, options, VLC_INPUT_OPTION_TRUSTED, -1 );
 156     free( psz_uri );
 157     if( p_input == NULL )
 158         return VLC_EGENERIC;
 159
 160     PL_LOCK;
 161     if( p_playlist->p_media_library->p_input )
 162         vlc_gc_decref( p_playlist->p_media_library->p_input );
 163
 164     p_playlist->p_media_library->p_input = p_input;
 165
 166     vlc_event_attach( &p_input->event_manager, vlc_InputItemSubItemTreeAdded,
 167                         input_item_subitem_tree_added, p_playlist );
 168
 169     pl_priv(p_playlist)->b_doing_ml = true;
 170     PL_UNLOCK;
 171
 172     stats_TimerStart( p_playlist, "ML Load", STATS_TIMER_ML_LOAD );
 173     input_Read( p_playlist, p_input );
 174     stats_TimerStop( p_playlist,STATS_TIMER_ML_LOAD );
 175
 176     PL_LOCK;
 177     pl_priv(p_playlist)->b_doing_ml = false;
 178     PL_UNLOCK;
 179
 180     vlc_event_detach( &p_input->event_manager, vlc_InputItemSubItemTreeAdded,
 181                         input_item_subitem_tree_added, p_playlist );
 182
 183     return VLC_SUCCESS;
 184 }
 185
 186 int playlist_MLDump( playlist_t *p_playlist )
 187 {
 188     char *psz_datadir;
 189
 190     psz_datadir = config_GetUserDir( VLC_DATA_DIR );
 191
 192     if( !psz_datadir ) /* XXX: This should never happen */
 193     {
 194         msg_Err( p_playlist, "no data directory, cannot save media library") ;
 195         return VLC_EGENERIC;
 196     }
 197
 198     char psz_dirname[ strlen( psz_datadir ) + sizeof( DIR_SEP "ml.xspf")];
 199     strcpy( psz_dirname, psz_datadir );
 200     free( psz_datadir );
 201     if( config_CreateDir( (vlc_object_t *)p_playlist, psz_dirname ) )
 202     {
 203         return VLC_EGENERIC;
 204     }
 205
 206     strcat( psz_dirname, DIR_SEP "ml.xspf" );
 207
 208     stats_TimerStart( p_playlist, "ML Dump", STATS_TIMER_ML_DUMP );
 209     playlist_Export( p_playlist, psz_dirname, p_playlist->p_media_library,
 210                      "export-xspf" );
 211     stats_TimerStop( p_playlist, STATS_TIMER_ML_DUMP );
 212
 213     return VLC_SUCCESS;
 214 }