lib/media_library.c

   1 /*****************************************************************************
   2  * media_library.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/vlc.h>
  30
  31 #include <vlc_common.h>
  32
  33 #include "libvlc_internal.h"
  34 #include "media_list_internal.h"
  35
  36 struct libvlc_media_library_t
  37 {
  38     libvlc_event_manager_t   event_manager;
  39     libvlc_instance_t *      p_libvlc_instance;
  40     int                      i_refcount;
  41     libvlc_media_list_t *    p_mlist;
  42 };
  43
  44
  45 /*
  46  * Private functions
  47  */
  48
  49 /*
  50  * Public libvlc functions
  51  */
  52
  53 /**************************************************************************
  54  *       new (Public)
  55  **************************************************************************/
  56 libvlc_media_library_t *
  57 libvlc_media_library_new( libvlc_instance_t * p_inst )
  58 {
  59     libvlc_media_library_t * p_mlib;
  60
  61     p_mlib = malloc(sizeof(libvlc_media_library_t));
  62
  63     if( !p_mlib )
  64     {
  65         libvlc_printerr( "Not enough memory" );
  66         return NULL;
  67     }
  68
  69     p_mlib->p_libvlc_instance = p_inst;
  70     p_mlib->i_refcount = 1;
  71     p_mlib->p_mlist = NULL;
  72
  73     libvlc_event_manager_init( &p_mlib->event_manager, p_mlib );
  74     libvlc_retain( p_inst );
  75     return p_mlib;
  76 }
  77
  78 /**************************************************************************
  79  *       release (Public)
  80  **************************************************************************/
  81 void libvlc_media_library_release( libvlc_media_library_t * p_mlib )
  82 {
  83     p_mlib->i_refcount--;
  84
  85     if( p_mlib->i_refcount > 0 )
  86         return;
  87
  88     libvlc_event_manager_destroy( &p_mlib->event_manager );
  89     libvlc_release( p_mlib->p_libvlc_instance );
  90     free( p_mlib );
  91 }
  92
  93 /**************************************************************************
  94  *       retain (Public)
  95  **************************************************************************/
  96 void libvlc_media_library_retain( libvlc_media_library_t * p_mlib )
  97 {
  98     p_mlib->i_refcount++;
  99 }
 100
 101 /**************************************************************************
 102  *       load (Public)
 103  *
 104  * It doesn't yet load the playlists
 105  **************************************************************************/
 106 int libvlc_media_library_load( libvlc_media_library_t * p_mlib )
 107 {
 108     char *psz_datadir = config_GetUserDir( VLC_USERDATA_DIR );
 109     char * psz_uri;
 110
 111     if( psz_datadir == NULL
 112      || asprintf( &psz_uri, "file/directory://%s" DIR_SEP "ml.xsp",
 113                   psz_datadir ) == -1 )
 114         psz_uri = NULL;
 115     free( psz_datadir );
 116
 117     if( psz_uri == NULL )
 118     {
 119         libvlc_printerr( "Not enough memory" );
 120         return -1;
 121     }
 122
 123     if( p_mlib->p_mlist )
 124         libvlc_media_list_release( p_mlib->p_mlist );
 125
 126     p_mlib->p_mlist = libvlc_media_list_new( p_mlib->p_libvlc_instance );
 127
 128     int ret = libvlc_media_list_add_file_content( p_mlib->p_mlist, psz_uri );
 129     free( psz_uri );
 130     return ret;
 131 }
 132
 133 /**************************************************************************
 134  *        media_list (Public)
 135  **************************************************************************/
 136 libvlc_media_list_t *
 137 libvlc_media_library_media_list( libvlc_media_library_t * p_mlib )
 138 {
 139     if( p_mlib->p_mlist )
 140         libvlc_media_list_retain( p_mlib->p_mlist );
 141     return p_mlib->p_mlist;
 142 }