share/lua/sd/librivox.lua

   1 --[[
   2  $Id$
   3
   4  Copyright © 2010 VideoLAN and AUTHORS
   5
   6  Authors: Rémi Duraffort  <ivoire at videolan dot org>
   7
   8  This program is free software; you can redistribute it and/or modify
   9  it under the terms of the GNU General Public License as published by
  10  the Free Software Foundation; either version 2 of the License, or
  11  (at your option) any later version.
  12
  13  This program is distributed in the hope that it will be useful,
  14  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  GNU General Public License for more details.
  17
  18  You should have received a copy of the GNU General Public License
  19  along with this program; if not, write to the Free Software
  20  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21 --]]
  22
  23 require "simplexml"
  24
  25 function descriptor()
  26     return { title = 'librivox' }
  27 end
  28
  29 -- Transform a duration 'mm:ss' or 'hh::mm::ss' into an integer
  30 function string_2_duration(str)
  31     local index = string.find( str, ':' )
  32     if( index == nil ) then return str
  33     else
  34         if( index == 1 ) then
  35             return string.sub( str, 2 )
  36         end
  37         local index2 = string.find( str, ':', index + 1 )
  38         if( index2 == nil ) then
  39             return string.sub( str, 0, index - 1 ) * 60 + string.sub( str, index + 1 )
  40         else
  41             return string.sub( str, 0, index - 1 ) * 3600 + string.sub( str, index + 1, index2 - 1 ) * 60 + string.sub( str, index2 + 1 )
  42         end
  43     end
  44 end
  45
  46 function main()
  47     local podcast = simplexml.parse_url( 'http://librivox.org/podcast.xml' )
  48     simplexml.add_name_maps( podcast )
  49
  50     local channel = podcast.children_map['channel'][1]
  51     local arturl = ''
  52     local books = {}
  53
  54     for _, item in ipairs( channel.children ) do
  55         if( item.name == 'item' ) then
  56             simplexml.add_name_maps( item )
  57
  58             -- If the book title is unknown, create a node for it in the sd
  59             local book_title = item.children_map['itunes:subtitle'][1].children[1]
  60             if( books[book_title] == nil ) then
  61                 books[book_title] = vlc.sd.add_node( { title = book_title,
  62                                                        arturl = arturl } )
  63             end
  64
  65             -- Add the new chapter to the book
  66             books[book_title]:add_subitem( { path = item.children_map['link'][1].children[1],
  67                                              title = item.children_map['title'][1].children[1],
  68                                              album = item.children_map['itunes:subtitle'][1].children[1],
  69                                              artist = item.children_map['itunes:author'][1].children[1],
  70                                              duration = string_2_duration( item.children_map['itunes:duration'][1].children[1] ),
  71                                              arturl = arturl } )
  72
  73         elseif( item.name == 'itunes:image' ) then
  74             arturl = item.attributes['href']
  75         end
  76     end
  77 end
  78