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