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_("Podcast '|' (pipe) seperated URLs list")
  59
  60 vlc_module_begin();
  61     set_shortname( "Podcast");
  62     set_description( _("Podcast Service Discovery") );
  63     set_category( CAT_PLAYLIST );
  64     set_subcategory( SUBCAT_PLAYLIST_SD );
  65
  66     add_string( "podcast-urls", NULL, NULL,
  67                 URLS_TEXT, URLS_LONGTEXT, VLC_FALSE );
  68
  69     set_capability( "services_discovery", 0 );
  70     set_callbacks( Open, Close );
  71
  72 vlc_module_end();
  73
  74
  75 /*****************************************************************************
  76  * Local structures
  77  *****************************************************************************/
  78
  79 struct services_discovery_sys_t
  80 {
  81     /* playlist node */
  82     playlist_item_t *p_node;
  83     input_thread_t *p_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_view_t     *p_view;
 108     playlist_item_t     *p_item;
 109
 110     int i, j;
 111     char *psz_buf;
 112     char *psz_tmp = psz_buf = var_CreateGetString( p_sd, "podcast-urls" );
 113
 114     i = 0;
 115     p_sys->i_urls = 1;
 116     while( psz_buf[i] != 0 )
 117         if( psz_buf[i++] == '|' )
 118             p_sys->i_urls++;
 119
 120     p_sys->ppsz_urls = (char **)malloc( p_sys->i_urls * sizeof( char * ) );
 121
 122     i = 0;
 123     j = 0;
 124     while( psz_buf[i] != 0 )
 125     {
 126         if( psz_buf[i] == '|' )
 127         {
 128             psz_buf[i] = 0;
 129             p_sys->ppsz_urls[j] = strdup( psz_tmp );
 130             i++;
 131             j++;
 132             psz_tmp = psz_buf+i;
 133         }
 134         else
 135             i++;
 136     }
 137     p_sys->ppsz_urls[j] = strdup( psz_tmp );
 138     free( psz_buf );
 139
 140     p_sd->pf_run = Run;
 141     p_sd->p_sys  = p_sys;
 142
 143     /* Create our playlist node */
 144     p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
 145                                                 FIND_ANYWHERE );
 146     if( !p_playlist )
 147     {
 148         msg_Warn( p_sd, "unable to find playlist, cancelling");
 149         return VLC_EGENERIC;
 150     }
 151
 152     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 153     p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 154                                          _("Podcast"), p_view->p_root );
 155     for( i = 0; i < p_sys->i_urls; i++ )
 156     {
 157         asprintf( &psz_buf, "%s", p_sys->ppsz_urls[i] );
 158         p_item = playlist_ItemNew( p_playlist, psz_buf,
 159                                          p_sys->ppsz_urls[i] );
 160         free( psz_buf );
 161         playlist_ItemAddOption( p_item, "demux=podcast" );
 162         playlist_NodeAddItem( p_playlist, p_item,
 163                               p_sys->p_node->pp_parents[0]->i_view,
 164                               p_sys->p_node, PLAYLIST_APPEND,
 165                               PLAYLIST_END );
 166
 167         /* We need to declare the parents of the node as the same of the
 168          * parent's ones */
 169         playlist_CopyParents( p_sys->p_node, p_item );
 170         p_sys->p_input = input_CreateThread( p_playlist, &p_item->input );
 171     }
 172
 173
 174     p_sys->p_node->i_flags |= PLAYLIST_RO_FLAG;
 175     val.b_bool = VLC_TRUE;
 176     var_Set( p_playlist, "intf-change", val );
 177
 178     vlc_object_release( p_playlist );
 179
 180     return VLC_SUCCESS;
 181 }
 182
 183 /*****************************************************************************
 184  * Close:
 185  *****************************************************************************/
 186 static void Close( vlc_object_t *p_this )
 187 {
 188     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 189     services_discovery_sys_t *p_sys  = p_sd->p_sys;
 190     playlist_t *p_playlist =  (playlist_t *) vlc_object_find( p_sd,
 191                                  VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 192     int i;
 193     if( p_sd->p_sys->p_input )
 194     {
 195         input_StopThread( p_sd->p_sys->p_input );
 196         input_DestroyThread( p_sd->p_sys->p_input );
 197         vlc_object_detach( p_sd->p_sys->p_input );
 198         vlc_object_destroy( p_sd->p_sys->p_input );
 199         p_sd->p_sys->p_input = NULL;
 200     }
 201     if( p_playlist )
 202     {
 203         playlist_NodeDelete( p_playlist, p_sys->p_node, VLC_TRUE, VLC_TRUE );
 204         vlc_object_release( p_playlist );
 205     }
 206     for( i = 0; i < p_sys->i_urls; i++ ) free( p_sys->ppsz_urls[i] );
 207     free( p_sys->ppsz_urls );
 208     free( p_sys );
 209 }
 210
 211 /*****************************************************************************
 212  * Run: main thread
 213  *****************************************************************************/
 214 static void Run( services_discovery_t *p_sd )
 215 {
 216     while( !p_sd->b_die )
 217     {
 218         if( p_sd->p_sys->p_input &&
 219             ( p_sd->p_sys->p_input->b_eof || p_sd->p_sys->p_input->b_error ) )
 220         {
 221             input_StopThread( p_sd->p_sys->p_input );
 222             input_DestroyThread( p_sd->p_sys->p_input );
 223             vlc_object_detach( p_sd->p_sys->p_input );
 224             vlc_object_destroy( p_sd->p_sys->p_input );
 225             p_sd->p_sys->p_input = NULL;
 226         }
 227         msleep( 100000 );
 228     }
 229 }