1 /*****************************************************************************
2 * media_discoverer.c: libvlc new API media discoverer functions
3 *****************************************************************************
4 * Copyright (C) 2007 the VideoLAN team
7 * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
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.
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.
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 *****************************************************************************/
26 #include <vlc/libvlc.h>
27 #include <vlc/libvlc_media.h>
28 #include <vlc/libvlc_media_list.h>
29 #include <vlc/libvlc_media_discoverer.h>
30 #include <vlc/libvlc_events.h>
32 #include <vlc_services_discovery.h>
34 #include "libvlc_internal.h"
35 #include "media_internal.h" // libvlc_media_new_from_input_item()
36 #include "media_list_internal.h" // _libvlc_media_list_add_media()
38 struct libvlc_media_discoverer_t
40 libvlc_event_manager_t * p_event_manager;
41 libvlc_instance_t * p_libvlc_instance;
42 services_discovery_t * p_sd;
43 libvlc_media_list_t * p_mlist;
45 vlc_dictionary_t catname_to_submedialist;
52 /**************************************************************************
53 * services_discovery_item_added (Private) (VLC event callback)
54 **************************************************************************/
56 static void services_discovery_item_added( const vlc_event_t * p_event,
59 input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
60 const char * psz_cat = p_event->u.services_discovery_item_added.psz_category;
61 libvlc_media_t * p_md;
62 libvlc_media_discoverer_t * p_mdis = user_data;
63 libvlc_media_list_t * p_mlist = p_mdis->p_mlist;
65 p_md = libvlc_media_new_from_input_item(
66 p_mdis->p_libvlc_instance,
69 /* If we have a category, that mean we have to group the items having
70 * that category in a media_list. */
73 p_mlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, psz_cat );
75 if( p_mlist == kVLCDictionaryNotFound )
77 libvlc_media_t * p_catmd;
78 p_catmd = libvlc_media_new_as_node( p_mdis->p_libvlc_instance, psz_cat, NULL );
79 p_mlist = libvlc_media_subitems( p_catmd, NULL );
80 p_mlist->b_read_only = true;
82 /* Insert the newly created mlist in our dictionary */
83 vlc_dictionary_insert( &p_mdis->catname_to_submedialist, psz_cat, p_mlist );
85 /* Insert the md into the root list */
86 libvlc_media_list_lock( p_mdis->p_mlist );
87 _libvlc_media_list_add_media( p_mdis->p_mlist, p_catmd, NULL );
88 libvlc_media_list_unlock( p_mdis->p_mlist );
90 /* We don't release the mlist cause the dictionary
91 * doesn't retain the object. But we release the md. */
92 libvlc_media_release( p_catmd );
97 libvlc_media_list_lock( p_mlist );
98 _libvlc_media_list_add_media( p_mlist, p_md, NULL );
99 libvlc_media_list_unlock( p_mlist );
103 /**************************************************************************
104 * services_discovery_item_removed (Private) (VLC event callback)
105 **************************************************************************/
107 static void services_discovery_item_removed( const vlc_event_t * p_event,
110 input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
111 libvlc_media_t * p_md;
112 libvlc_media_discoverer_t * p_mdis = user_data;
114 int i, count = libvlc_media_list_count( p_mdis->p_mlist, NULL );
115 libvlc_media_list_lock( p_mdis->p_mlist );
116 for( i = 0; i < count; i++ )
118 p_md = libvlc_media_list_item_at_index( p_mdis->p_mlist, i, NULL );
119 if( p_md->p_input_item == p_item )
121 _libvlc_media_list_remove_index( p_mdis->p_mlist, i, NULL );
125 libvlc_media_list_unlock( p_mdis->p_mlist );
128 /**************************************************************************
129 * services_discovery_started (Private) (VLC event callback)
130 **************************************************************************/
132 static void services_discovery_started( const vlc_event_t * p_event,
136 libvlc_media_discoverer_t * p_mdis = user_data;
137 libvlc_event_t event;
138 p_mdis->running = true;
139 event.type = libvlc_MediaDiscovererStarted;
140 libvlc_event_send( p_mdis->p_event_manager, &event );
143 /**************************************************************************
144 * services_discovery_ended (Private) (VLC event callback)
145 **************************************************************************/
147 static void services_discovery_ended( const vlc_event_t * p_event,
151 libvlc_media_discoverer_t * p_mdis = user_data;
152 libvlc_event_t event;
153 p_mdis->running = false;
154 event.type = libvlc_MediaDiscovererEnded;
155 libvlc_event_send( p_mdis->p_event_manager, &event );
159 * Public libvlc functions
162 /**************************************************************************
166 **************************************************************************/
167 libvlc_media_discoverer_t *
168 libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst,
169 const char * psz_name,
170 libvlc_exception_t * p_e )
172 libvlc_media_discoverer_t * p_mdis;
174 p_mdis = malloc(sizeof(libvlc_media_discoverer_t));
177 libvlc_exception_raise( p_e, "Not enough memory" );
181 p_mdis->p_libvlc_instance = p_inst;
182 p_mdis->p_mlist = libvlc_media_list_new( p_inst, NULL );
183 p_mdis->p_mlist->b_read_only = true;
184 p_mdis->running = false;
186 vlc_dictionary_init( &p_mdis->catname_to_submedialist, 0 );
188 p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis,
191 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
192 libvlc_MediaDiscovererStarted, NULL );
193 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
194 libvlc_MediaDiscovererEnded, NULL );
196 p_mdis->p_sd = vlc_sd_Create( (vlc_object_t*)p_inst->p_libvlc_int );
200 libvlc_media_list_release( p_mdis->p_mlist );
201 libvlc_exception_raise( p_e, "Can't find the services_discovery module named '%s'", psz_name );
206 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
207 vlc_ServicesDiscoveryItemAdded,
208 services_discovery_item_added,
210 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
211 vlc_ServicesDiscoveryItemRemoved,
212 services_discovery_item_removed,
214 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
215 vlc_ServicesDiscoveryStarted,
216 services_discovery_started,
218 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
219 vlc_ServicesDiscoveryEnded,
220 services_discovery_ended,
224 if( !vlc_sd_Start( p_mdis->p_sd, psz_name ) )
226 libvlc_media_list_release( p_mdis->p_mlist );
227 libvlc_exception_raise( p_e, "Can't start the services_discovery module named '%s'", psz_name );
235 /**************************************************************************
237 **************************************************************************/
239 libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis )
243 libvlc_media_list_release( p_mdis->p_mlist );
244 vlc_sd_StopAndDestroy( p_mdis->p_sd );
246 /* Free catname_to_submedialist and all the mlist */
247 char ** all_keys = vlc_dictionary_all_keys( &p_mdis->catname_to_submedialist );
248 for( i = 0; all_keys[i]; i++ )
250 libvlc_media_list_t * p_catmlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, all_keys[i] );
251 libvlc_media_list_release( p_catmlist );
256 vlc_dictionary_clear( &p_mdis->catname_to_submedialist, NULL, NULL );
257 libvlc_event_manager_release( p_mdis->p_event_manager );
262 /**************************************************************************
263 * localized_name (Public)
264 **************************************************************************/
266 libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis )
268 return services_discovery_GetLocalizedName( p_mdis->p_sd );
271 /**************************************************************************
272 * media_list (Public)
273 **************************************************************************/
274 libvlc_media_list_t *
275 libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis )
277 libvlc_media_list_retain( p_mdis->p_mlist );
278 return p_mdis->p_mlist;
281 /**************************************************************************
282 * event_manager (Public)
283 **************************************************************************/
284 libvlc_event_manager_t *
285 libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis )
287 return p_mdis->p_event_manager;
291 /**************************************************************************
293 **************************************************************************/
295 libvlc_media_discoverer_is_running( libvlc_media_discoverer_t * p_mdis )
297 return p_mdis->running;