1 /*****************************************************************************
2 * media_discoverer.c: libvlc new API media discoverer functions
3 *****************************************************************************
4 * Copyright (C) 2007 VLC authors and VideoLAN
7 * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
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 Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
30 #include <vlc/libvlc.h>
31 #include <vlc/libvlc_media.h>
32 #include <vlc/libvlc_media_list.h>
33 #include <vlc/libvlc_media_discoverer.h>
34 #include <vlc/libvlc_events.h>
36 #include <vlc_services_discovery.h>
38 #include "libvlc_internal.h"
39 #include "media_internal.h" // libvlc_media_new_from_input_item()
40 #include "media_list_internal.h" // _libvlc_media_list_add_media()
42 struct libvlc_media_discoverer_t
44 libvlc_event_manager_t * p_event_manager;
45 libvlc_instance_t * p_libvlc_instance;
46 services_discovery_t * p_sd;
47 libvlc_media_list_t * p_mlist;
49 vlc_dictionary_t catname_to_submedialist;
56 /**************************************************************************
57 * services_discovery_item_added (Private) (VLC event callback)
58 **************************************************************************/
60 static void services_discovery_item_added( const vlc_event_t * p_event,
63 input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
64 const char * psz_cat = p_event->u.services_discovery_item_added.psz_category;
65 libvlc_media_t * p_md;
66 libvlc_media_discoverer_t * p_mdis = user_data;
67 libvlc_media_list_t * p_mlist = p_mdis->p_mlist;
69 p_md = libvlc_media_new_from_input_item( p_mdis->p_libvlc_instance,
72 /* If we have a category, that mean we have to group the items having
73 * that category in a media_list. */
76 p_mlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, psz_cat );
78 if( p_mlist == kVLCDictionaryNotFound )
80 libvlc_media_t * p_catmd;
81 p_catmd = libvlc_media_new_as_node( p_mdis->p_libvlc_instance, psz_cat );
82 p_mlist = libvlc_media_subitems( p_catmd );
83 p_mlist->b_read_only = true;
85 /* Insert the newly created mlist in our dictionary */
86 vlc_dictionary_insert( &p_mdis->catname_to_submedialist, psz_cat, p_mlist );
88 /* Insert the md into the root list */
89 libvlc_media_list_lock( p_mdis->p_mlist );
90 _libvlc_media_list_add_media( p_mdis->p_mlist, p_catmd );
91 libvlc_media_list_unlock( p_mdis->p_mlist );
93 /* We don't release the mlist cause the dictionary
94 * doesn't retain the object. But we release the md. */
95 libvlc_media_release( p_catmd );
99 libvlc_media_list_lock( p_mlist );
100 _libvlc_media_list_add_media( p_mlist, p_md );
101 libvlc_media_list_unlock( p_mlist );
103 libvlc_media_release( p_md );
106 /**************************************************************************
107 * services_discovery_item_removed (Private) (VLC event callback)
108 **************************************************************************/
110 static void services_discovery_item_removed( const vlc_event_t * p_event,
113 input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
114 libvlc_media_t * p_md;
115 libvlc_media_discoverer_t * p_mdis = user_data;
117 int i, count = libvlc_media_list_count( p_mdis->p_mlist );
118 libvlc_media_list_lock( p_mdis->p_mlist );
119 for( i = 0; i < count; i++ )
121 p_md = libvlc_media_list_item_at_index( p_mdis->p_mlist, i );
122 if( p_md->p_input_item == p_item )
124 _libvlc_media_list_remove_index( p_mdis->p_mlist, i );
128 libvlc_media_list_unlock( p_mdis->p_mlist );
131 /**************************************************************************
132 * services_discovery_removeall (Private) (VLC event callback)
133 **************************************************************************/
134 static void services_discovery_removeall( const vlc_event_t * p_event,
138 libvlc_media_discoverer_t * p_mdis = user_data;
140 libvlc_media_list_lock( p_mdis->p_mlist );
141 for( int i = 0; i < libvlc_media_list_count( p_mdis->p_mlist ); i++ )
143 _libvlc_media_list_remove_index( p_mdis->p_mlist, i );
145 libvlc_media_list_unlock( p_mdis->p_mlist );
148 /**************************************************************************
149 * services_discovery_started (Private) (VLC event callback)
150 **************************************************************************/
152 static void services_discovery_started( const vlc_event_t * p_event,
156 libvlc_media_discoverer_t * p_mdis = user_data;
157 libvlc_event_t event;
158 p_mdis->running = true;
159 event.type = libvlc_MediaDiscovererStarted;
160 libvlc_event_send( p_mdis->p_event_manager, &event );
163 /**************************************************************************
164 * services_discovery_ended (Private) (VLC event callback)
165 **************************************************************************/
167 static void services_discovery_ended( const vlc_event_t * p_event,
171 libvlc_media_discoverer_t * p_mdis = user_data;
172 libvlc_event_t event;
173 p_mdis->running = false;
174 event.type = libvlc_MediaDiscovererEnded;
175 libvlc_event_send( p_mdis->p_event_manager, &event );
179 * Public libvlc functions
182 /**************************************************************************
186 **************************************************************************/
187 libvlc_media_discoverer_t *
188 libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst,
189 const char * psz_name )
191 libvlc_media_discoverer_t * p_mdis;
193 p_mdis = malloc(sizeof(libvlc_media_discoverer_t));
194 if( unlikely(!p_mdis) )
196 libvlc_printerr( "Not enough memory" );
200 p_mdis->p_libvlc_instance = p_inst;
201 p_mdis->p_mlist = libvlc_media_list_new( p_inst );
202 p_mdis->p_mlist->b_read_only = true;
203 p_mdis->running = false;
205 vlc_dictionary_init( &p_mdis->catname_to_submedialist, 0 );
207 p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis, p_inst );
208 if( unlikely(p_mdis->p_event_manager == NULL) )
214 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
215 libvlc_MediaDiscovererStarted );
216 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
217 libvlc_MediaDiscovererEnded );
219 p_mdis->p_sd = vlc_sd_Create( (vlc_object_t*)p_inst->p_libvlc_int,
221 if( unlikely(p_mdis->p_sd == NULL) )
223 libvlc_printerr( "%s: no such discovery module found", psz_name );
224 libvlc_media_list_release( p_mdis->p_mlist );
225 libvlc_event_manager_release( p_mdis->p_event_manager );
230 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
231 vlc_ServicesDiscoveryItemAdded,
232 services_discovery_item_added,
234 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
235 vlc_ServicesDiscoveryItemRemoved,
236 services_discovery_item_removed,
238 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
239 vlc_ServicesDiscoveryStarted,
240 services_discovery_started,
242 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
243 vlc_ServicesDiscoveryEnded,
244 services_discovery_ended,
246 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
247 vlc_ServicesDiscoveryItemRemoveAll,
248 services_discovery_removeall,
252 if( !vlc_sd_Start( p_mdis->p_sd ) )
254 libvlc_printerr( "%s: internal module error",
255 p_mdis->p_sd->psz_name );
256 libvlc_media_list_release( p_mdis->p_mlist );
257 libvlc_event_manager_release( p_mdis->p_event_manager );
265 /**************************************************************************
267 **************************************************************************/
269 libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis )
273 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
274 vlc_ServicesDiscoveryItemAdded,
275 services_discovery_item_added,
277 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
278 vlc_ServicesDiscoveryItemRemoved,
279 services_discovery_item_removed,
281 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
282 vlc_ServicesDiscoveryStarted,
283 services_discovery_started,
285 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
286 vlc_ServicesDiscoveryEnded,
287 services_discovery_ended,
289 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
290 vlc_ServicesDiscoveryItemRemoveAll,
291 services_discovery_removeall,
294 libvlc_media_list_release( p_mdis->p_mlist );
296 vlc_sd_StopAndDestroy( p_mdis->p_sd );
298 /* Free catname_to_submedialist and all the mlist */
299 char ** all_keys = vlc_dictionary_all_keys( &p_mdis->catname_to_submedialist );
300 for( i = 0; all_keys[i]; i++ )
302 libvlc_media_list_t * p_catmlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, all_keys[i] );
303 libvlc_media_list_release( p_catmlist );
308 vlc_dictionary_clear( &p_mdis->catname_to_submedialist, NULL, NULL );
309 libvlc_event_manager_release( p_mdis->p_event_manager );
314 /**************************************************************************
315 * localized_name (Public)
316 **************************************************************************/
318 libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis )
320 return services_discovery_GetLocalizedName( p_mdis->p_sd );
323 /**************************************************************************
324 * media_list (Public)
325 **************************************************************************/
326 libvlc_media_list_t *
327 libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis )
329 libvlc_media_list_retain( p_mdis->p_mlist );
330 return p_mdis->p_mlist;
333 /**************************************************************************
334 * event_manager (Public)
335 **************************************************************************/
336 libvlc_event_manager_t *
337 libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis )
339 return p_mdis->p_event_manager;
343 /**************************************************************************
345 **************************************************************************/
347 libvlc_media_discoverer_is_running( libvlc_media_discoverer_t * p_mdis )
349 return p_mdis->running;