git.sesse.net Git - vlc/blob - src/control/media_discoverer.c

   1 /*****************************************************************************
   2  * media_discoverer.c: libvlc new API media discoverer functions
   3  *****************************************************************************
   4  * Copyright (C) 2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Pierre d'Herbemont <pdherbemont # videolan.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 #include "libvlc_internal.h"
  25 #include <vlc/libvlc.h>
  26 #include <assert.h>
  27 #include "vlc_services_discovery.h"
  28
  29 /*
  30  * Private functions
  31  */
  32
  33 /**************************************************************************
  34  *       services_discovery_item_added (Private) (VLC event callback)
  35  **************************************************************************/
  36
  37 static void services_discovery_item_added( const vlc_event_t * p_event,
  38                                            void * user_data )
  39 {
  40     input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
  41     libvlc_media_descriptor_t * p_md;
  42     libvlc_media_discoverer_t * p_mdis = user_data;
  43
  44     p_md = libvlc_media_descriptor_new_from_input_item(
  45             p_mdis->p_libvlc_instance,
  46             p_item, NULL );
  47
  48     libvlc_media_list_lock( p_mdis->p_mlist );
  49     libvlc_media_list_add_media_descriptor( p_mdis->p_mlist, p_md, NULL );
  50     libvlc_media_list_unlock( p_mdis->p_mlist );
  51 }
  52
  53 /**************************************************************************
  54  *       services_discovery_item_removed (Private) (VLC event callback)
  55  **************************************************************************/
  56
  57 static void services_discovery_item_removed( const vlc_event_t * p_event,
  58                                              void * user_data )
  59 {
  60     input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
  61     libvlc_media_descriptor_t * p_md;
  62     libvlc_media_discoverer_t * p_mdis = user_data;
  63
  64     int i, count = libvlc_media_list_count( p_mdis->p_mlist, NULL );
  65     libvlc_media_list_lock( p_mdis->p_mlist );
  66     for( i = 0; i < count; i++ )
  67     {
  68         p_md = libvlc_media_list_item_at_index( p_mdis->p_mlist, i, NULL );
  69         if( p_md->p_input_item == p_item )
  70         {
  71             libvlc_media_list_remove_index( p_mdis->p_mlist, i, NULL );
  72             break;
  73         }
  74     }
  75     libvlc_media_list_unlock( p_mdis->p_mlist );
  76 }
  77
  78 /**************************************************************************
  79  *       services_discovery_started (Private) (VLC event callback)
  80  **************************************************************************/
  81
  82 static void services_discovery_started( const vlc_event_t * p_event,
  83                                         void * user_data )
  84 {
  85     libvlc_media_discoverer_t * p_mdis = user_data;
  86     libvlc_event_t event;
  87     event.type = libvlc_MediaDiscovererStarted;
  88     libvlc_event_send( p_mdis->p_event_manager, &event );
  89 }
  90
  91 /**************************************************************************
  92  *       services_discovery_ended (Private) (VLC event callback)
  93  **************************************************************************/
  94
  95 static void services_discovery_ended( const vlc_event_t * p_event,
  96                                       void * user_data )
  97 {
  98     libvlc_media_discoverer_t * p_mdis = user_data;
  99     libvlc_event_t event;
 100     event.type = libvlc_MediaDiscovererEnded;
 101     libvlc_event_send( p_mdis->p_event_manager, &event );
 102 }
 103
 104 /*
 105  * Public libvlc functions
 106  */
 107
 108 /**************************************************************************
 109  *       new (Public)
 110  *
 111  * Init an object.
 112  **************************************************************************/
 113 libvlc_media_discoverer_t *
 114 libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst,
 115                                        const char * psz_name,
 116                                        libvlc_exception_t * p_e )
 117 {
 118     libvlc_media_discoverer_t * p_mdis;
 119
 120     p_mdis = malloc(sizeof(libvlc_media_discoverer_t));
 121     if( !p_mdis )
 122     {
 123         libvlc_exception_raise( p_e, "Not enough memory" );
 124         return NULL;
 125     }
 126
 127     p_mdis->p_libvlc_instance = p_inst;
 128     p_mdis->p_mlist = libvlc_media_list_new( p_inst, NULL );
 129
 130     p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis,
 131             p_inst, NULL );
 132
 133     libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
 134             libvlc_MediaDiscovererStarted, NULL );
 135     libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
 136             libvlc_MediaDiscovererEnded, NULL );
 137
 138     p_mdis->p_sd = services_discovery_Create( (vlc_object_t*)p_inst->p_libvlc_int, psz_name );
 139
 140     if( !p_mdis->p_sd )
 141     {
 142         free( p_mdis );
 143         libvlc_exception_raise( p_e, "Can't find the services_discovery module named '%s'", psz_name );
 144         return NULL;
 145     }
 146
 147     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 148                       vlc_ServicesDiscoveryItemAdded,
 149                       services_discovery_item_added,
 150                       p_mdis );
 151     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 152                       vlc_ServicesDiscoveryItemRemoved,
 153                       services_discovery_item_removed,
 154                       p_mdis );
 155     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 156                       vlc_ServicesDiscoveryStarted,
 157                       services_discovery_started,
 158                       p_mdis );
 159     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 160                       vlc_ServicesDiscoveryEnded,
 161                       services_discovery_ended,
 162                       p_mdis );
 163
 164     services_discovery_Start( p_mdis->p_sd );
 165
 166     /* Here we go */
 167
 168     return p_mdis;
 169 }
 170
 171 /**************************************************************************
 172  * release (Public)
 173  **************************************************************************/
 174 void
 175 libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis )
 176 {
 177     libvlc_media_list_release( p_mdis->p_mlist );
 178     services_discovery_Destroy( p_mdis->p_sd );
 179     free( p_mdis );
 180 }
 181
 182 /**************************************************************************
 183  * localized_name (Public)
 184  **************************************************************************/
 185 char *
 186 libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis )
 187 {
 188     return services_discovery_GetLocalizedName( p_mdis->p_sd );
 189 }
 190
 191 /**************************************************************************
 192  * media_list (Public)
 193  **************************************************************************/
 194 libvlc_media_list_t *
 195 libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis )
 196 {
 197     libvlc_media_list_retain( p_mdis->p_mlist );
 198     return p_mdis->p_mlist;
 199 }
 200
 201 /**************************************************************************
 202  * event_manager (Public)
 203  **************************************************************************/
 204 libvlc_event_manager_t *
 205 libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis )
 206 {
 207     return p_mdis->p_event_manager;
 208 }
 209