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 *****************************************************************************/
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(
70 p_mdis->p_libvlc_instance,
73 /* If we have a category, that mean we have to group the items having
74 * that category in a media_list. */
77 p_mlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, psz_cat );
79 if( p_mlist == kVLCDictionaryNotFound )
81 libvlc_media_t * p_catmd;
82 p_catmd = libvlc_media_new_as_node( p_mdis->p_libvlc_instance, psz_cat, NULL );
83 p_mlist = libvlc_media_subitems( p_catmd );
84 p_mlist->b_read_only = true;
86 /* Insert the newly created mlist in our dictionary */
87 vlc_dictionary_insert( &p_mdis->catname_to_submedialist, psz_cat, p_mlist );
89 /* Insert the md into the root list */
90 libvlc_media_list_lock( p_mdis->p_mlist );
91 _libvlc_media_list_add_media( p_mdis->p_mlist, p_catmd );
92 libvlc_media_list_unlock( p_mdis->p_mlist );
94 /* We don't release the mlist cause the dictionary
95 * doesn't retain the object. But we release the md. */
96 libvlc_media_release( p_catmd );
100 libvlc_media_list_lock( p_mlist );
101 _libvlc_media_list_add_media( p_mlist, p_md );
102 libvlc_media_list_unlock( p_mlist );
104 libvlc_media_release( p_md );
107 /**************************************************************************
108 * services_discovery_item_removed (Private) (VLC event callback)
109 **************************************************************************/
111 static void services_discovery_item_removed( const vlc_event_t * p_event,
114 input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item;
115 libvlc_media_t * p_md;
116 libvlc_media_discoverer_t * p_mdis = user_data;
118 int i, count = libvlc_media_list_count( p_mdis->p_mlist );
119 libvlc_media_list_lock( p_mdis->p_mlist );
120 for( i = 0; i < count; i++ )
122 p_md = libvlc_media_list_item_at_index( p_mdis->p_mlist, i, NULL );
123 if( p_md->p_input_item == p_item )
125 _libvlc_media_list_remove_index( p_mdis->p_mlist, i, NULL );
129 libvlc_media_list_unlock( p_mdis->p_mlist );
132 /**************************************************************************
133 * services_discovery_started (Private) (VLC event callback)
134 **************************************************************************/
136 static void services_discovery_started( const vlc_event_t * p_event,
140 libvlc_media_discoverer_t * p_mdis = user_data;
141 libvlc_event_t event;
142 p_mdis->running = true;
143 event.type = libvlc_MediaDiscovererStarted;
144 libvlc_event_send( p_mdis->p_event_manager, &event );
147 /**************************************************************************
148 * services_discovery_ended (Private) (VLC event callback)
149 **************************************************************************/
151 static void services_discovery_ended( const vlc_event_t * p_event,
155 libvlc_media_discoverer_t * p_mdis = user_data;
156 libvlc_event_t event;
157 p_mdis->running = false;
158 event.type = libvlc_MediaDiscovererEnded;
159 libvlc_event_send( p_mdis->p_event_manager, &event );
163 * Public libvlc functions
166 /**************************************************************************
170 **************************************************************************/
171 libvlc_media_discoverer_t *
172 libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst,
173 const char * psz_name )
175 libvlc_media_discoverer_t * p_mdis;
177 p_mdis = malloc(sizeof(libvlc_media_discoverer_t));
178 if( unlikely(!p_mdis) )
180 libvlc_printerr( "Not enough memory" );
184 p_mdis->p_libvlc_instance = p_inst;
185 p_mdis->p_mlist = libvlc_media_list_new( p_inst );
186 p_mdis->p_mlist->b_read_only = true;
187 p_mdis->running = false;
189 vlc_dictionary_init( &p_mdis->catname_to_submedialist, 0 );
191 p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis, p_inst );
192 if( unlikely(p_mdis->p_event_manager == NULL) )
198 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
199 libvlc_MediaDiscovererStarted );
200 libvlc_event_manager_register_event_type( p_mdis->p_event_manager,
201 libvlc_MediaDiscovererEnded );
203 p_mdis->p_sd = vlc_sd_Create( (vlc_object_t*)p_inst->p_libvlc_int );
207 libvlc_printerr( "%s: no such discovery module found", psz_name );
208 libvlc_media_list_release( p_mdis->p_mlist );
209 libvlc_event_manager_release( p_mdis->p_event_manager );
214 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
215 vlc_ServicesDiscoveryItemAdded,
216 services_discovery_item_added,
218 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
219 vlc_ServicesDiscoveryItemRemoved,
220 services_discovery_item_removed,
222 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
223 vlc_ServicesDiscoveryStarted,
224 services_discovery_started,
226 vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ),
227 vlc_ServicesDiscoveryEnded,
228 services_discovery_ended,
232 if( !vlc_sd_Start( p_mdis->p_sd, psz_name ) )
234 libvlc_printerr( "%s: internal module error", psz_name );
235 libvlc_media_list_release( p_mdis->p_mlist );
236 libvlc_event_manager_release( p_mdis->p_event_manager );
244 /**************************************************************************
246 **************************************************************************/
248 libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis )
252 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
253 vlc_ServicesDiscoveryItemAdded,
254 services_discovery_item_added,
256 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
257 vlc_ServicesDiscoveryItemRemoved,
258 services_discovery_item_removed,
260 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
261 vlc_ServicesDiscoveryStarted,
262 services_discovery_started,
264 vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ),
265 vlc_ServicesDiscoveryEnded,
266 services_discovery_ended,
269 libvlc_media_list_release( p_mdis->p_mlist );
271 vlc_sd_StopAndDestroy( p_mdis->p_sd );
273 /* Free catname_to_submedialist and all the mlist */
274 char ** all_keys = vlc_dictionary_all_keys( &p_mdis->catname_to_submedialist );
275 for( i = 0; all_keys[i]; i++ )
277 libvlc_media_list_t * p_catmlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, all_keys[i] );
278 libvlc_media_list_release( p_catmlist );
283 vlc_dictionary_clear( &p_mdis->catname_to_submedialist, NULL, NULL );
284 libvlc_event_manager_release( p_mdis->p_event_manager );
289 /**************************************************************************
290 * localized_name (Public)
291 **************************************************************************/
293 libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis )
295 return services_discovery_GetLocalizedName( p_mdis->p_sd );
298 /**************************************************************************
299 * media_list (Public)
300 **************************************************************************/
301 libvlc_media_list_t *
302 libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis )
304 libvlc_media_list_retain( p_mdis->p_mlist );
305 return p_mdis->p_mlist;
308 /**************************************************************************
309 * event_manager (Public)
310 **************************************************************************/
311 libvlc_event_manager_t *
312 libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis )
314 return p_mdis->p_event_manager;
318 /**************************************************************************
320 **************************************************************************/
322 libvlc_media_discoverer_is_running( libvlc_media_discoverer_t * p_mdis )
324 return p_mdis->running;