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( 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_started (Private) (VLC event callback)
133 **************************************************************************/
135 static void services_discovery_started( const vlc_event_t
* p_event
,
139 libvlc_media_discoverer_t
* p_mdis
= user_data
;
140 libvlc_event_t event
;
141 p_mdis
->running
= true;
142 event
.type
= libvlc_MediaDiscovererStarted
;
143 libvlc_event_send( p_mdis
->p_event_manager
, &event
);
146 /**************************************************************************
147 * services_discovery_ended (Private) (VLC event callback)
148 **************************************************************************/
150 static void services_discovery_ended( const vlc_event_t
* p_event
,
154 libvlc_media_discoverer_t
* p_mdis
= user_data
;
155 libvlc_event_t event
;
156 p_mdis
->running
= false;
157 event
.type
= libvlc_MediaDiscovererEnded
;
158 libvlc_event_send( p_mdis
->p_event_manager
, &event
);
162 * Public libvlc functions
165 /**************************************************************************
169 **************************************************************************/
170 libvlc_media_discoverer_t
*
171 libvlc_media_discoverer_new_from_name( libvlc_instance_t
* p_inst
,
172 const char * psz_name
)
174 libvlc_media_discoverer_t
* p_mdis
;
176 p_mdis
= malloc(sizeof(libvlc_media_discoverer_t
));
177 if( unlikely(!p_mdis
) )
179 libvlc_printerr( "Not enough memory" );
183 p_mdis
->p_libvlc_instance
= p_inst
;
184 p_mdis
->p_mlist
= libvlc_media_list_new( p_inst
);
185 p_mdis
->p_mlist
->b_read_only
= true;
186 p_mdis
->running
= false;
188 vlc_dictionary_init( &p_mdis
->catname_to_submedialist
, 0 );
190 p_mdis
->p_event_manager
= libvlc_event_manager_new( p_mdis
, p_inst
);
191 if( unlikely(p_mdis
->p_event_manager
== NULL
) )
197 libvlc_event_manager_register_event_type( p_mdis
->p_event_manager
,
198 libvlc_MediaDiscovererStarted
);
199 libvlc_event_manager_register_event_type( p_mdis
->p_event_manager
,
200 libvlc_MediaDiscovererEnded
);
202 p_mdis
->p_sd
= vlc_sd_Create( (vlc_object_t
*)p_inst
->p_libvlc_int
,
204 if( unlikely(p_mdis
->p_sd
== NULL
) )
206 libvlc_printerr( "%s: no such discovery module found", psz_name
);
207 libvlc_media_list_release( p_mdis
->p_mlist
);
208 libvlc_event_manager_release( p_mdis
->p_event_manager
);
213 vlc_event_attach( services_discovery_EventManager( p_mdis
->p_sd
),
214 vlc_ServicesDiscoveryItemAdded
,
215 services_discovery_item_added
,
217 vlc_event_attach( services_discovery_EventManager( p_mdis
->p_sd
),
218 vlc_ServicesDiscoveryItemRemoved
,
219 services_discovery_item_removed
,
221 vlc_event_attach( services_discovery_EventManager( p_mdis
->p_sd
),
222 vlc_ServicesDiscoveryStarted
,
223 services_discovery_started
,
225 vlc_event_attach( services_discovery_EventManager( p_mdis
->p_sd
),
226 vlc_ServicesDiscoveryEnded
,
227 services_discovery_ended
,
231 if( !vlc_sd_Start( p_mdis
->p_sd
) )
233 libvlc_printerr( "%s: internal module error",
234 p_mdis
->p_sd
->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
;