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;
  84     input_thread_t **pp_input;
  85
  86     char **ppsz_urls;
  87     int i_urls;
  88 };
  89
  90 /*****************************************************************************
  91  * Local prototypes
  92  *****************************************************************************/
  93
  94 /* Main functions */
  95     static void Run    ( services_discovery_t *p_intf );
  96
  97 /*****************************************************************************
  98  * Open: initialize and create stuff
  99  *****************************************************************************/
 100 static int Open( vlc_object_t *p_this )
 101 {
 102     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 103     services_discovery_sys_t *p_sys  = malloc(
 104                                     sizeof( services_discovery_sys_t ) );
 105
 106     vlc_value_t         val;
 107     playlist_t          *p_playlist;
 108     playlist_view_t     *p_view;
 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_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 154     p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 155                                          _("Podcast"), p_view->p_root );
 156     p_sys->pp_input = malloc( p_sys->i_urls * sizeof( input_thread_t * ) );
 157     for( i = 0; i < p_sys->i_urls; i++ )
 158     {
 159         asprintf( &psz_buf, "%s", p_sys->ppsz_urls[i] );
 160         p_item = playlist_ItemNew( p_playlist, psz_buf,
 161                                          p_sys->ppsz_urls[i] );
 162         free( psz_buf );
 163         playlist_ItemAddOption( p_item, "demux=podcast" );
 164         playlist_NodeAddItem( p_playlist, p_item,
 165                               p_sys->p_node->pp_parents[0]->i_view,
 166                               p_sys->p_node, PLAYLIST_APPEND,
 167                               PLAYLIST_END );
 168
 169         /* We need to declare the parents of the node as the same of the
 170          * parent's ones */
 171         playlist_CopyParents( p_sys->p_node, p_item );
 172         p_sys->pp_input[i] = input_CreateThread( p_playlist, &p_item->input );
 173     }
 174
 175     p_sys->p_node->i_flags |= PLAYLIST_RO_FLAG;
 176     val.b_bool = VLC_TRUE;
 177     var_Set( p_playlist, "intf-change", val );
 178
 179     vlc_object_release( p_playlist );
 180
 181     return VLC_SUCCESS;
 182 }
 183
 184 /*****************************************************************************
 185  * Close:
 186  *****************************************************************************/
 187 static void Close( vlc_object_t *p_this )
 188 {
 189     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 190     services_discovery_sys_t *p_sys  = p_sd->p_sys;
 191     playlist_t *p_playlist =  (playlist_t *) vlc_object_find( p_sd,
 192                                  VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 193     int i;
 194     for( i = 0; i < p_sys->i_urls; i++ )
 195     {
 196         if( p_sd->p_sys->pp_input[i] )
 197         {
 198             input_StopThread( p_sd->p_sys->pp_input[i] );
 199             input_DestroyThread( p_sd->p_sys->pp_input[i] );
 200             vlc_object_detach( p_sd->p_sys->pp_input[i] );
 201             vlc_object_destroy( p_sd->p_sys->pp_input[i] );
 202             p_sd->p_sys->pp_input[i] = NULL;
 203         }
 204     }
 205     free( p_sd->p_sys->pp_input );
 206     if( p_playlist )
 207     {
 208         playlist_NodeDelete( p_playlist, p_sys->p_node, VLC_TRUE, VLC_TRUE );
 209         vlc_object_release( p_playlist );
 210     }
 211     for( i = 0; i < p_sys->i_urls; i++ ) free( p_sys->ppsz_urls[i] );
 212     free( p_sys->ppsz_urls );
 213     free( p_sys );
 214 }
 215
 216 /*****************************************************************************
 217  * Run: main thread
 218  *****************************************************************************/
 219 static void Run( services_discovery_t *p_sd )
 220 {
 221     while( !p_sd->b_die )
 222     {
 223         int i;
 224         for( i = 0; i < p_sd->p_sys->i_urls; i++ )
 225         {
 226             if( p_sd->p_sys->pp_input[i] &&
 227                 ( p_sd->p_sys->pp_input[i]->b_eof
 228                   || p_sd->p_sys->pp_input[i]->b_error ) )
 229             {
 230                 input_StopThread( p_sd->p_sys->pp_input[i] );
 231                 input_DestroyThread( p_sd->p_sys->pp_input[i] );
 232                 vlc_object_detach( p_sd->p_sys->pp_input[i] );
 233                 vlc_object_destroy( p_sd->p_sys->pp_input[i] );
 234                 p_sd->p_sys->pp_input[i] = NULL;
 235             }
 236         }
 237         msleep( 100000 );
 238     }
 239 }