modules/meta_engine/folder.c

   1 /*****************************************************************************
   2  * folder.c
   3  *****************************************************************************
   4  * Copyright (C) 2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Antoine Cellerier <dionoea -at- videolan -dot- 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
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc_common.h>
  33 #include <vlc_plugin.h>
  34 #include <vlc_art_finder.h>
  35 #include <vlc_fs.h>
  36 #include <vlc_url.h>
  37 #include <vlc_input_item.h>
  38
  39 #ifdef HAVE_SYS_STAT_H
  40 #   include <sys/stat.h>
  41 #endif
  42
  43 static const char* cover_files[] = {
  44     "Folder.jpg",           /* Windows */
  45     "AlbumArtSmall.jpg",    /* Windows */
  46     ".folder.png",          /* KDE?    */
  47     "cover.jpg",            /* rockbox */
  48 };
  49
  50 static const int i_covers = (sizeof(cover_files)/sizeof(cover_files[0]));
  51
  52 /*****************************************************************************
  53  * Local prototypes
  54  *****************************************************************************/
  55 static int FindMeta( vlc_object_t * );
  56
  57 /*****************************************************************************
  58  * Module descriptor
  59  *****************************************************************************/
  60
  61 vlc_module_begin ()
  62     set_shortname( N_( "Folder" ) )
  63     set_description( N_("Folder meta data") )
  64     add_loadfile( "album-art-filename", NULL,
  65         N_("Album art filename"), N_("Filename to look for album art in current directory"), false );
  66     set_capability( "art finder", 90 )
  67     set_callbacks( FindMeta, NULL )
  68 vlc_module_end ()
  69
  70 /*****************************************************************************
  71  *****************************************************************************/
  72 static int FindMeta( vlc_object_t *p_this )
  73 {
  74     art_finder_t *p_finder = (art_finder_t *)p_this;
  75     input_item_t *p_item = p_finder->p_item;
  76     bool b_have_art = false;
  77
  78     if( !p_item )
  79         return VLC_EGENERIC;
  80
  81     char *psz_dir = input_item_GetURI( p_item );
  82     if( !psz_dir )
  83         return VLC_EGENERIC;
  84
  85     char *psz_path = make_path( psz_dir );
  86     free( psz_dir );
  87     if( psz_path == NULL )
  88         return VLC_EGENERIC;
  89
  90     char *psz_buf = strrchr( psz_path, DIR_SEP_CHAR );
  91     if( psz_buf )
  92         *++psz_buf = '\0';
  93     else
  94         *psz_path = '\0'; /* relative path */
  95
  96     for( int i = -1; !b_have_art && i < i_covers; i++ )
  97     {
  98         const char *filename;
  99         char *filebuf, *filepath;
 100
 101         if( i == -1 ) /* higher priority : configured filename */
 102         {
 103             filebuf = var_InheritString( p_this, "album-art-filename" );
 104             if( filebuf == NULL )
 105                 continue;
 106             filename = filebuf;
 107         }
 108         else
 109         {
 110             filename = cover_files[i];
 111             filebuf = NULL;
 112         }
 113
 114         if( asprintf( &filepath, "%s%s", psz_path, filename ) == -1 )
 115             filepath = NULL;
 116         free( filebuf );
 117         if( unlikely(filepath == NULL) )
 118             continue;
 119
 120         struct stat dummy;
 121         if( vlc_stat( filepath, &dummy ) == 0 )
 122         {
 123             char *psz_uri = make_URI( filepath, "file" );
 124             if( psz_uri )
 125             {
 126                 input_item_SetArtURL( p_item, psz_uri );
 127                 free( psz_uri );
 128                 b_have_art = true;
 129             }
 130         }
 131         free( filepath );
 132     }
 133     free( psz_path );
 134
 135     return b_have_art ? VLC_SUCCESS : VLC_EGENERIC;
 136 }