git.sesse.net Git - vlc/blob - modules/services_discovery/podcast.c

   1 /*****************************************************************************
   2  * podcast.c:  Podcast services discovery module
   3  *****************************************************************************
   4  * Copyright (C) 2005 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  * Includes
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28
  29 #include <vlc/vlc.h>
  30 #include <vlc/intf.h>
  31
  32 #include <vlc/input.h>
  33
  34 #include "network.h"
  35
  36 #include <errno.h>                                                 /* ENOMEM */
  37
  38 #ifdef HAVE_UNISTD_H
  39 #    include <unistd.h>
  40 #endif
  41 #ifdef HAVE_SYS_TIME_H
  42 #    include <sys/time.h>
  43 #endif
  44
  45 /************************************************************************
  46  * Macros and definitions
  47  ************************************************************************/
  48
  49 /*****************************************************************************
  50  * Module descriptor
  51  *****************************************************************************/
  52
  53 /* Callbacks */
  54     static int  Open ( vlc_object_t * );
  55     static void Close( vlc_object_t * );
  56
  57 #define URLS_TEXT N_("Podcast URLs list")
  58 #define URLS_LONGTEXT N_("Enter the list of podcasts to retrieve, " \
  59                          "separated by '|' (pipe)." )
  60
  61 vlc_module_begin();
  62     set_shortname( "Podcast");
  63     set_description( _("Podcasts") );
  64     set_category( CAT_PLAYLIST );
  65     set_subcategory( SUBCAT_PLAYLIST_SD );
  66
  67     add_string( "podcast-urls", NULL, NULL,
  68                 URLS_TEXT, URLS_LONGTEXT, VLC_FALSE );
  69
  70     set_capability( "services_discovery", 0 );
  71     set_callbacks( Open, Close );
  72
  73 vlc_module_end();
  74
  75
  76 /*****************************************************************************
  77  * Local structures
  78  *****************************************************************************/
  79
  80 struct services_discovery_sys_t
  81 {
  82     /* playlist node */
  83     playlist_item_t *p_node_cat;
  84     playlist_item_t *p_node_one;
  85     input_thread_t **pp_input;
  86
  87     char **ppsz_urls;
  88     int i_urls;
  89 };
  90
  91 /*****************************************************************************
  92  * Local prototypes
  93  *****************************************************************************/
  94
  95 /* Main functions */
  96     static void Run    ( services_discovery_t *p_intf );
  97
  98 /*****************************************************************************
  99  * Open: initialize and create stuff
 100  *****************************************************************************/
 101 static int Open( vlc_object_t *p_this )
 102 {
 103     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 104     services_discovery_sys_t *p_sys  = malloc(
 105                                     sizeof( services_discovery_sys_t ) );
 106
 107     vlc_value_t         val;
 108     playlist_t          *p_playlist;
 109     playlist_item_t     *p_item;
 110
 111     int i, j;
 112     char *psz_buf;
 113     char *psz_tmp = psz_buf = var_CreateGetString( p_sd, "podcast-urls" );
 114
 115     i = 0;
 116     p_sys->i_urls = 1;
 117     while( psz_buf[i] != 0 )
 118         if( psz_buf[i++] == '|' )
 119             p_sys->i_urls++;
 120
 121     p_sys->ppsz_urls = (char **)malloc( p_sys->i_urls * sizeof( char * ) );
 122
 123     i = 0;
 124     j = 0;
 125     while( psz_buf[i] != 0 )
 126     {
 127         if( psz_buf[i] == '|' )
 128         {
 129             psz_buf[i] = 0;
 130             p_sys->ppsz_urls[j] = strdup( psz_tmp );
 131             i++;
 132             j++;
 133             psz_tmp = psz_buf+i;
 134         }
 135         else
 136             i++;
 137     }
 138     p_sys->ppsz_urls[j] = strdup( psz_tmp );
 139     free( psz_buf );
 140
 141     p_sd->pf_run = Run;
 142     p_sd->p_sys  = p_sys;
 143
 144     /* Create our playlist node */
 145     p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
 146                                                 FIND_ANYWHERE );
 147     if( !p_playlist )
 148     {
 149         msg_Warn( p_sd, "unable to find playlist, cancelling");
 150         return VLC_EGENERIC;
 151     }
 152
 153     p_sys->p_node_cat = playlist_NodeCreate( p_playlist, _("Podcast"),
 154                                          p_playlist->p_root_category );
 155     p_sys->p_node_one = playlist_NodeCreate( p_playlist, _("Podcast"),
 156                                          p_playlist->p_root_onelevel );
 157     p_sys->p_node_one->p_input->i_id = p_sys->p_node_cat->p_input->i_id;
 158
 159     p_sys->p_node_one->i_flags |= PLAYLIST_RO_FLAG;
 160     p_sys->p_node_cat->i_flags |= PLAYLIST_RO_FLAG;
 161     p_sys->p_node_one->i_flags |= PLAYLIST_SKIP_FLAG;
 162     p_sys->p_node_cat->i_flags |= PLAYLIST_SKIP_FLAG;
 163     p_sys->pp_input = malloc( p_sys->i_urls * sizeof( input_thread_t * ) );
 164     for( i = 0; i < p_sys->i_urls; i++ )
 165     {
 166         input_item_t *p_input;
 167         asprintf( &psz_buf, "%s", p_sys->ppsz_urls[i] );
 168         p_input = input_ItemNewExt( p_playlist, psz_buf,
 169                                     p_sys->ppsz_urls[i], 0, NULL, -1 );
 170         vlc_input_item_AddOption( p_input, "demux=podcast" );
 171         p_item = playlist_NodeAddInput( p_playlist, p_input, p_sys->p_node_cat,
 172                                         PLAYLIST_APPEND, PLAYLIST_END );
 173         p_item = playlist_NodeAddInput( p_playlist, p_input, p_sys->p_node_one,
 174                                         PLAYLIST_APPEND, PLAYLIST_END );
 175         free( psz_buf );
 176         p_sys->pp_input[i] = input_CreateThread( p_playlist, p_input );
 177     }
 178
 179     val.b_bool = VLC_TRUE;
 180     var_Set( p_playlist, "intf-change", val );
 181
 182     vlc_object_release( p_playlist );
 183
 184     return VLC_SUCCESS;
 185 }
 186
 187 /*****************************************************************************
 188  * Close:
 189  *****************************************************************************/
 190 static void Close( vlc_object_t *p_this )
 191 {
 192     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 193     services_discovery_sys_t *p_sys  = p_sd->p_sys;
 194     playlist_t *p_playlist =  (playlist_t *) vlc_object_find( p_sd,
 195                                  VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 196     int i;
 197     for( i = 0; i < p_sys->i_urls; i++ )
 198     {
 199         if( p_sd->p_sys->pp_input[i] )
 200         {
 201             input_StopThread( p_sd->p_sys->pp_input[i] );
 202             input_DestroyThread( p_sd->p_sys->pp_input[i] );
 203             vlc_object_detach( p_sd->p_sys->pp_input[i] );
 204             vlc_object_destroy( p_sd->p_sys->pp_input[i] );
 205             p_sd->p_sys->pp_input[i] = NULL;
 206         }
 207     }
 208     free( p_sd->p_sys->pp_input );
 209     if( p_playlist )
 210     {
 211         playlist_NodeDelete( p_playlist, p_sys->p_node_cat, VLC_TRUE, VLC_TRUE );
 212         playlist_NodeDelete( p_playlist, p_sys->p_node_one, VLC_TRUE, VLC_TRUE );
 213         vlc_object_release( p_playlist );
 214     }
 215     for( i = 0; i < p_sys->i_urls; i++ ) free( p_sys->ppsz_urls[i] );
 216     free( p_sys->ppsz_urls );
 217     free( p_sys );
 218 }
 219
 220 /*****************************************************************************
 221  * Run: main thread
 222  *****************************************************************************/
 223 static void Run( services_discovery_t *p_sd )
 224 {
 225     while( !p_sd->b_die )
 226     {
 227         int i;
 228         for( i = 0; i < p_sd->p_sys->i_urls; i++ )
 229         {
 230             if( p_sd->p_sys->pp_input[i] &&
 231                 ( p_sd->p_sys->pp_input[i]->b_eof
 232                   || p_sd->p_sys->pp_input[i]->b_error ) )
 233             {
 234                 input_StopThread( p_sd->p_sys->pp_input[i] );
 235                 input_DestroyThread( p_sd->p_sys->pp_input[i] );
 236                 vlc_object_detach( p_sd->p_sys->pp_input[i] );
 237                 vlc_object_destroy( p_sd->p_sys->pp_input[i] );
 238                 p_sd->p_sys->pp_input[i] = NULL;
 239             }
 240         }
 241         msleep( 100000 );
 242     }
 243 }