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     p_mdis->running = VLC_TRUE;
  88     event.type = libvlc_MediaDiscovererStarted;
  89     libvlc_event_send( p_mdis->p_event_manager, &event );
  90 }
  91
  92 /**************************************************************************
  93  *       services_discovery_ended (Private) (VLC event callback)
  94  **************************************************************************/
  95
  96 static void services_discovery_ended( const vlc_event_t * p_event,
  97                                       void * user_data )
  98 {
  99     libvlc_media_discoverer_t * p_mdis = user_data;
 100     libvlc_event_t event;
 101     p_mdis->running = VLC_FALSE;
 102     event.type = libvlc_MediaDiscovererEnded;
 103     libvlc_event_send( p_mdis->p_event_manager, &event );
 104 }
 105
 106 /*
 107  * Public libvlc functions
 108  */
 109
 110 /**************************************************************************
 111  *       new (Public)
 112  *
 113  * Init an object.
 114  **************************************************************************/
 115 libvlc_media_discoverer_t *
 116 libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst,
 117                                        const char * psz_name,
 118                                        libvlc_exception_t * p_e )
 119 {
 120     libvlc_media_discoverer_t * p_mdis;
 121
 122     p_mdis = malloc(sizeof(libvlc_media_discoverer_t));
 123     if( !p_mdis )
 124     {
 125         libvlc_exception_raise( p_e, "Not enough memory" );
 126         return NULL;
 127     }
 128
 129     p_mdis->p_libvlc_instance = p_inst;
 130     p_mdis->p_mlist = libvlc_media_list_new( p_inst, NULL );
 131     p_mdis->p_mlist->b_read_only = VLC_TRUE;
 132     p_mdis->running = VLC_FALSE;
 133
 134     p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis,
 135             p_inst, NULL );
 136
 137     libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
 138             libvlc_MediaDiscovererStarted, NULL );
 139     libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
 140             libvlc_MediaDiscovererEnded, NULL );
 141
 142     p_mdis->p_sd = services_discovery_Create( (vlc_object_t*)p_inst->p_libvlc_int, psz_name );
 143
 144     if( !p_mdis->p_sd )
 145     {
 146         free( p_mdis );
 147         libvlc_exception_raise( p_e, "Can't find the services_discovery module named '%s'", psz_name );
 148         return NULL;
 149     }
 150
 151     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 152                       vlc_ServicesDiscoveryItemAdded,
 153                       services_discovery_item_added,
 154                       p_mdis );
 155     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 156                       vlc_ServicesDiscoveryItemRemoved,
 157                       services_discovery_item_removed,
 158                       p_mdis );
 159     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 160                       vlc_ServicesDiscoveryStarted,
 161                       services_discovery_started,
 162                       p_mdis );
 163     vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
 164                       vlc_ServicesDiscoveryEnded,
 165                       services_discovery_ended,
 166                       p_mdis );
 167
 168     services_discovery_Start( p_mdis->p_sd );
 169
 170     /* Here we go */
 171
 172     return p_mdis;
 173 }
 174
 175 /**************************************************************************
 176  * release (Public)
 177  **************************************************************************/
 178 void
 179 libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis )
 180 {
 181     libvlc_media_list_release( p_mdis->p_mlist );
 182     services_discovery_Destroy( p_mdis->p_sd );
 183     free( p_mdis );
 184 }
 185
 186 /**************************************************************************
 187  * localized_name (Public)
 188  **************************************************************************/
 189 char *
 190 libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis )
 191 {
 192     return services_discovery_GetLocalizedName( p_mdis->p_sd );
 193 }
 194
 195 /**************************************************************************
 196  * media_list (Public)
 197  **************************************************************************/
 198 libvlc_media_list_t *
 199 libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis )
 200 {
 201     libvlc_media_list_retain( p_mdis->p_mlist );
 202     return p_mdis->p_mlist;
 203 }
 204
 205 /**************************************************************************
 206  * event_manager (Public)
 207  **************************************************************************/
 208 libvlc_event_manager_t *
 209 libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis )
 210 {
 211     return p_mdis->p_event_manager;
 212 }
 213
 214
 215 /**************************************************************************
 216  * running (Public)
 217  **************************************************************************/
 218 vlc_bool_t
 219 libvlc_media_discoverer_is_running( libvlc_media_discoverer_t * p_mdis )
 220 {
 221     return p_mdis->running;
 222 }
 223