modules/demux/playlist/wpl.c

   1 /*****************************************************************************
   2  * wpl.c : WPL playlist format import
   3  *****************************************************************************
   4  * Copyright (C) 2009 the VideoLAN team
   5  *
   6  * Authors: Su Heaven <suheaven@gmail.com>
   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 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include <vlc_demux.h>
  33 #include <vlc_charset.h>
  34
  35 #include "playlist.h"
  36
  37 struct demux_sys_t
  38 {
  39     char *psz_prefix;
  40 };
  41
  42 /*****************************************************************************
  43  * Local prototypes
  44  *****************************************************************************/
  45 static int Demux( demux_t *p_demux);
  46 static int Control( demux_t *p_demux, int i_query, va_list args );
  47
  48 /*****************************************************************************
  49  * Import_WPL: main import function
  50  *****************************************************************************/
  51 int Import_WPL( vlc_object_t *p_this )
  52 {
  53     demux_t *p_demux = (demux_t *)p_this;
  54
  55     if(! ( demux_IsPathExtension( p_demux, ".wpl" ) || demux_IsForced( p_demux,  "wpl" )))
  56         return VLC_EGENERIC;
  57
  58     STANDARD_DEMUX_INIT_MSG( "found valid WPL playlist" );
  59     p_demux->p_sys->psz_prefix = FindPrefix( p_demux );
  60
  61     return VLC_SUCCESS;
  62 }
  63
  64
  65
  66 /*****************************************************************************
  67  * Deactivate: frees unused data
  68  *****************************************************************************/
  69 void Close_WPL( vlc_object_t *p_this )
  70 {
  71     demux_t *p_demux = (demux_t *)p_this;
  72     free( p_demux->p_sys->psz_prefix );
  73     free( p_demux->p_sys );
  74 }
  75
  76 static int Demux( demux_t *p_demux )
  77 {
  78     char       *psz_line;
  79     input_item_t *p_current_input = GetCurrentItem(p_demux);
  80
  81     input_item_node_t *p_subitems = input_item_node_Create( p_current_input );
  82
  83     while( (psz_line = stream_ReadLine( p_demux->s )) )
  84     {
  85         char *psz_parse = psz_line;
  86         /* Skip leading tabs and spaces */
  87         while( *psz_parse == ' '  || *psz_parse == '\t' ||
  88                *psz_parse == '\n' || *psz_parse == '\r' )
  89             psz_parse++;
  90
  91         /* if the line is the uri of the media item */
  92         if( !strncasecmp( psz_parse, "<media src=\"", strlen( "<media src=\"" ) ) )
  93         {
  94             char *psz_uri = psz_parse + strlen( "<media src=\"" );
  95
  96             psz_parse = strchr( psz_uri, '"' );
  97             if( psz_parse != NULL )
  98             {
  99                 input_item_t *p_input;
 100
 101                 *psz_parse = '\0';
 102                 psz_uri = ProcessMRL( psz_uri, p_demux->p_sys->psz_prefix );
 103                 p_input = input_item_NewExt( p_demux, psz_uri, psz_uri,
 104                                         0, NULL, 0, -1 );
 105                 input_item_AddSubItem( p_current_input, p_input );
 106                 input_item_node_AppendItem( p_subitems, p_input );
 107                 vlc_gc_decref( p_input );
 108             }
 109         }
 110
 111         /* Fetch another line */
 112         free( psz_line );
 113
 114     }
 115
 116     input_item_AddSubItemTree( p_subitems );
 117     input_item_node_Delete( p_subitems );
 118
 119     vlc_gc_decref(p_current_input);
 120     var_Destroy( p_demux, "wpl-extvlcopt" );
 121     return 0; /* Needed for correct operation of go back */
 122 }
 123
 124 static int Control( demux_t *p_demux, int i_query, va_list args )
 125 {
 126     VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args);
 127     return VLC_EGENERIC;
 128 }