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 #include <vlc/vlc.h>
  24 #include <vlc_playlist.h>
  25 #include <vlc_events.h>
  26 #include "playlist_internal.h"
  27 #include "config/config.h"
  28 #include <vlc_charset.h>
  29
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33 #include <errno.h>
  34
  35 int playlist_Export( playlist_t * p_playlist, const char *psz_filename ,
  36                      playlist_item_t *p_export_root,const char *psz_type )
  37 {
  38     module_t *p_module;
  39     playlist_export_t *p_export;
  40
  41     if( p_export_root == NULL ) return VLC_EGENERIC;
  42
  43     msg_Info( p_playlist, "saving %s to file %s",
  44                     p_export_root->p_input->psz_name, psz_filename );
  45
  46     /* Prepare the playlist_export_t structure */
  47     p_export = (playlist_export_t *)malloc( sizeof(playlist_export_t) );
  48     if( !p_export)
  49     {
  50         msg_Err( p_playlist, "out of memory" );
  51         return VLC_ENOMEM;
  52     }
  53     p_export->psz_filename = NULL;
  54     if ( psz_filename )
  55         p_export->psz_filename = strdup( psz_filename );
  56     p_export->p_file = utf8_fopen( psz_filename, "wt" );
  57     if( !p_export->p_file )
  58     {
  59         msg_Err( p_playlist , "could not create playlist file %s (%m)",
  60                  psz_filename );
  61         return VLC_EGENERIC;
  62     }
  63
  64     p_export->p_root = p_export_root;
  65
  66     /* Lock the playlist */
  67     vlc_mutex_lock( &p_playlist->object_lock );
  68     p_playlist->p_private = (void *)p_export;
  69
  70     /* And call the module ! All work is done now */
  71     p_module = module_Need( p_playlist, "playlist export", psz_type, VLC_TRUE);
  72     if( !p_module )
  73     {
  74         msg_Warn( p_playlist, "exporting playlist failed" );
  75         vlc_mutex_unlock( &p_playlist->object_lock );
  76         return VLC_ENOOBJ;
  77     }
  78     module_Unneed( p_playlist , p_module );
  79
  80     /* Clean up */
  81     fclose( p_export->p_file );
  82     if ( p_export->psz_filename )
  83         free( p_export->psz_filename );
  84     free ( p_export );
  85     p_playlist->p_private = NULL;
  86     vlc_mutex_unlock( &p_playlist->object_lock );
  87
  88     return VLC_SUCCESS;
  89 }
  90
  91 /*****************************************************************************
  92  * A subitem has been added to the Media Library (Event Callback)
  93  *****************************************************************************/
  94 static void input_item_subitem_added( const vlc_event_t * p_event,
  95                                       void * user_data )
  96 {
  97     playlist_t *p_playlist = user_data;
  98     input_item_t *p_item = p_event->u.input_item_subitem_added.p_new_child;
  99
 100     /* The media library input has one and only one option: "meta-file"
 101      * So we remove that unneeded option. */
 102     if( p_item->i_options == 1 )
 103     {
 104         free( p_item->ppsz_options[0] );
 105         p_item->i_options = 0;
 106     }
 107
 108     playlist_AddInput( p_playlist, p_item, PLAYLIST_APPEND, PLAYLIST_END,
 109             VLC_FALSE, VLC_FALSE );
 110 }
 111
 112 int playlist_MLLoad( playlist_t *p_playlist )
 113 {
 114     const char *psz_datadir = p_playlist->p_libvlc->psz_datadir;
 115     char *psz_uri = NULL;
 116     input_item_t *p_input;
 117
 118     if( !config_GetInt( p_playlist, "media-library") ) return VLC_SUCCESS;
 119     if( !psz_datadir ) /* XXX: This should never happen */
 120     {
 121         msg_Err( p_playlist, "no data directory, cannot load media library") ;
 122         return VLC_EGENERIC;
 123     }
 124
 125     if( asprintf( &psz_uri, "%s" DIR_SEP "ml.xspf", psz_datadir ) == -1 )
 126     {
 127         psz_uri = NULL;
 128         goto error;
 129     }
 130     struct stat p_stat;
 131     /* checks if media library file is present */
 132     if( utf8_stat( psz_uri , &p_stat ) )
 133     {
 134         free( psz_uri );
 135         return VLC_EGENERIC;
 136     }
 137     free( psz_uri );
 138
 139     if( asprintf( &psz_uri, "file/xspf-open://%s" DIR_SEP "ml.xspf",
 140                   psz_datadir ) == -1 )
 141     {
 142         psz_uri = NULL;
 143         goto error;
 144     }
 145
 146     const char *const psz_option = "meta-file";
 147     /* that option has to be cleaned in input_item_subitem_added() */
 148     p_input = input_ItemNewExt( p_playlist, psz_uri,
 149                                 _("Media Library"), 1, &psz_option, -1 );
 150     if( p_input == NULL )
 151         goto error;
 152
 153     p_playlist->p_ml_onelevel->p_input =
 154     p_playlist->p_ml_category->p_input = p_input;
 155
 156     vlc_event_attach( &p_input->event_manager, vlc_InputItemSubItemAdded,
 157                         input_item_subitem_added, p_playlist );
 158
 159     p_playlist->b_doing_ml = VLC_TRUE;
 160     stats_TimerStart( p_playlist, "ML Load", STATS_TIMER_ML_LOAD );
 161     input_Read( p_playlist, p_input, VLC_TRUE );
 162     stats_TimerStop( p_playlist,STATS_TIMER_ML_LOAD );
 163     p_playlist->b_doing_ml = VLC_FALSE;
 164
 165     vlc_event_detach( &p_input->event_manager, vlc_InputItemSubItemAdded,
 166                         input_item_subitem_added, p_playlist );
 167
 168     free( psz_uri );
 169     return VLC_SUCCESS;
 170
 171 error:
 172     free( psz_uri );
 173     return VLC_ENOMEM;
 174 }
 175
 176 int playlist_MLDump( playlist_t *p_playlist )
 177 {
 178     char *psz_datadir = p_playlist->p_libvlc->psz_datadir;
 179     if( !config_GetInt( p_playlist, "media-library") ) return VLC_SUCCESS;
 180     if( !psz_datadir ) /* XXX: This should never happen */
 181     {
 182         msg_Err( p_playlist, "no data directory, cannot save media library") ;
 183         return VLC_EGENERIC;
 184     }
 185
 186     char psz_dirname[ strlen( psz_datadir )
 187                       + sizeof( DIR_SEP "ml.xspf")];
 188     sprintf( psz_dirname, "%s", psz_datadir );
 189     if( config_CreateDir( (vlc_object_t *)p_playlist, psz_dirname ) )
 190     {
 191         return VLC_EGENERIC;
 192     }
 193
 194     strcat( psz_dirname, DIR_SEP "ml.xspf" );
 195
 196     stats_TimerStart( p_playlist, "ML Dump", STATS_TIMER_ML_DUMP );
 197     playlist_Export( p_playlist, psz_dirname, p_playlist->p_ml_category,
 198                      "export-xspf" );
 199     vlc_gc_decref( p_playlist->p_ml_category->p_input );
 200     stats_TimerStop( p_playlist, STATS_TIMER_ML_DUMP );
 201
 202     return VLC_SUCCESS;
 203 }