1 /*****************************************************************************
2 * media_list_player.c: libvlc new API media_list player 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 *****************************************************************************/
23 #include "libvlc_internal.h"
24 #include <vlc/libvlc.h>
25 #include "media_list_path.h"
31 /**************************************************************************
32 * get_next_index (private)
34 * Simple next item fetcher.
35 **************************************************************************/
36 static libvlc_media_list_path_t
37 get_next_path( libvlc_media_list_player_t * p_mlp )
39 /* We are entered with libvlc_media_list_lock( p_mlp->p_list ) */
40 libvlc_media_list_path_t ret;
41 libvlc_media_list_t * p_parent_of_playing_item;
42 libvlc_media_list_t * p_sublist_of_playing_item;
44 if ( !p_mlp->current_playing_item_path )
46 if( !libvlc_media_list_count( p_mlp->p_mlist, NULL ) )
48 return libvlc_media_list_path_with_root_index(0);
51 p_sublist_of_playing_item = libvlc_media_list_sublist_at_path(
53 p_mlp->current_playing_item_path );
55 /* If item just gained a sublist just play it */
56 if( p_sublist_of_playing_item )
58 libvlc_media_list_release( p_sublist_of_playing_item );
59 return libvlc_media_list_path_copy_by_appending( p_mlp->current_playing_item_path, 0 );
62 /* Try to catch next element */
63 p_parent_of_playing_item = libvlc_media_list_parentlist_at_path(
65 p_mlp->current_playing_item_path );
67 int deepness = libvlc_media_list_path_deepness( p_mlp->current_playing_item_path );
68 if( deepness < 1 || !p_parent_of_playing_item )
71 ret = libvlc_media_list_path_copy( p_mlp->current_playing_item_path );
73 while( ret[deepness-1] >= libvlc_media_list_count( p_parent_of_playing_item, NULL ) )
79 libvlc_media_list_release( p_parent_of_playing_item );
84 p_parent_of_playing_item = libvlc_media_list_parentlist_at_path(
88 libvlc_media_list_release( p_parent_of_playing_item );
92 /**************************************************************************
93 * media_player_reached_end (private) (Event Callback)
94 **************************************************************************/
96 media_player_reached_end( const libvlc_event_t * p_event,
99 libvlc_media_list_player_t * p_mlp = p_user_data;
100 libvlc_media_player_t * p_mi = p_event->p_obj;
101 libvlc_media_t *p_md, * p_current_md;
103 p_md = libvlc_media_player_get_media( p_mi, NULL );
104 /* XXX: need if p_mlp->p_current_playing_index is beyond */
105 p_current_md = libvlc_media_list_item_at_path(
107 p_mlp->current_playing_item_path );
108 if( p_md != p_current_md )
110 msg_Warn( p_mlp->p_libvlc_instance->p_libvlc_int,
111 "We are not sync-ed with the media instance" );
112 libvlc_media_release( p_md );
113 libvlc_media_release( p_current_md );
116 libvlc_media_release( p_md );
117 libvlc_media_release( p_current_md );
118 libvlc_media_list_player_next( p_mlp, NULL );
121 /**************************************************************************
122 * playlist_item_deleted (private) (Event Callback)
123 **************************************************************************/
125 mlist_item_deleted( const libvlc_event_t * p_event, void * p_user_data )
127 libvlc_media_t * p_current_md;
128 libvlc_media_list_player_t * p_mlp = p_user_data;
129 libvlc_media_list_t * p_emitting_mlist = p_event->p_obj;
130 /* XXX: need if p_mlp->p_current_playing_index is beyond */
131 p_current_md = libvlc_media_list_item_at_path(
133 p_mlp->current_playing_item_path );
135 if( p_event->u.media_list_item_deleted.item == p_current_md &&
136 p_emitting_mlist == p_mlp->p_mlist )
138 /* We are playing this item, we choose to stop */
139 libvlc_media_list_player_stop( p_mlp, NULL );
143 /**************************************************************************
144 * install_playlist_observer (private)
145 **************************************************************************/
147 install_playlist_observer( libvlc_media_list_player_t * p_mlp )
149 libvlc_event_attach( libvlc_media_list_event_manager( p_mlp->p_mlist, NULL ),
150 libvlc_MediaListItemDeleted, mlist_item_deleted, p_mlp, NULL );
153 /**************************************************************************
154 * uninstall_playlist_observer (private)
155 **************************************************************************/
157 uninstall_playlist_observer( libvlc_media_list_player_t * p_mlp )
159 if ( !p_mlp->p_mlist )
164 libvlc_event_detach( libvlc_media_list_event_manager( p_mlp->p_mlist, NULL ),
165 libvlc_MediaListItemDeleted, mlist_item_deleted, p_mlp, NULL );
168 /**************************************************************************
169 * install_media_player_observer (private)
170 **************************************************************************/
172 install_media_player_observer( libvlc_media_list_player_t * p_mlp )
174 libvlc_event_attach( libvlc_media_player_event_manager( p_mlp->p_mi, NULL ),
175 libvlc_MediaPlayerEndReached,
176 media_player_reached_end, p_mlp, NULL );
180 /**************************************************************************
181 * uninstall_media_player_observer (private)
182 **************************************************************************/
184 uninstall_media_player_observer( libvlc_media_list_player_t * p_mlp )
191 libvlc_event_detach( libvlc_media_player_event_manager( p_mlp->p_mi, NULL ),
192 libvlc_MediaPlayerEndReached,
193 media_player_reached_end, p_mlp, NULL );
196 /**************************************************************************
197 * set_current_playing_item (private)
199 * Playlist lock should be held
200 **************************************************************************/
202 set_current_playing_item( libvlc_media_list_player_t * p_mlp,
203 libvlc_media_list_path_t path,
204 libvlc_exception_t * p_e )
208 libvlc_media_t * p_md;
210 p_md = libvlc_media_list_item_at_path( p_mlp->p_mlist, path );
211 vlc_mutex_lock( &p_mlp->object_lock );
213 if( p_mlp->current_playing_item_path != path )
215 free( p_mlp->current_playing_item_path );
216 p_mlp->current_playing_item_path = path;
221 vlc_mutex_unlock( &p_mlp->object_lock );
225 /* We are not interested in getting media stop event now */
226 uninstall_media_player_observer( p_mlp );
230 p_mlp->p_mi = libvlc_media_player_new_from_media(p_md, p_e);
233 if( p_md->p_subitems && libvlc_media_list_count( p_md->p_subitems, NULL ) > 0 )
235 libvlc_media_t * p_submd;
236 p_submd = libvlc_media_list_item_at_index( p_md->p_subitems, 0, NULL );
237 libvlc_media_player_set_media( p_mlp->p_mi, p_submd, NULL );
238 libvlc_media_release( p_submd );
241 libvlc_media_player_set_media( p_mlp->p_mi, p_md, NULL );
242 // wait_playing_state(); /* If we want to be synchronous */
243 install_media_player_observer( p_mlp );
245 vlc_mutex_unlock( &p_mlp->object_lock );
247 libvlc_media_release( p_md ); /* for libvlc_media_list_item_at_index */
251 * Public libvlc functions
254 /**************************************************************************
256 **************************************************************************/
257 libvlc_media_list_player_t *
258 libvlc_media_list_player_new( libvlc_instance_t * p_instance,
259 libvlc_exception_t * p_e )
262 libvlc_media_list_player_t * p_mlp;
263 p_mlp = malloc(sizeof(libvlc_media_list_player_t));
264 p_mlp->current_playing_item_path = NULL;
266 p_mlp->p_mlist = NULL;
267 vlc_mutex_init( &p_mlp->object_lock );
268 p_mlp->p_event_manager = libvlc_event_manager_new( p_mlp,
271 libvlc_event_manager_register_event_type( p_mlp->p_event_manager,
272 libvlc_MediaListPlayerNextItemSet, p_e );
277 /**************************************************************************
279 **************************************************************************/
280 void libvlc_media_list_player_release( libvlc_media_list_player_t * p_mlp )
285 /**************************************************************************
286 * set_media_player (Public)
287 **************************************************************************/
288 void libvlc_media_list_player_set_media_player(
289 libvlc_media_list_player_t * p_mlp,
290 libvlc_media_player_t * p_mi,
291 libvlc_exception_t * p_e )
295 vlc_mutex_lock( &p_mlp->object_lock );
299 uninstall_media_player_observer( p_mlp );
300 libvlc_media_player_release( p_mlp->p_mi );
302 libvlc_media_player_retain( p_mi );
305 install_media_player_observer( p_mlp );
307 vlc_mutex_unlock( &p_mlp->object_lock );
310 /**************************************************************************
311 * set_media_list (Public)
312 **************************************************************************/
313 void libvlc_media_list_player_set_media_list(
314 libvlc_media_list_player_t * p_mlp,
315 libvlc_media_list_t * p_mlist,
316 libvlc_exception_t * p_e )
318 vlc_mutex_lock( &p_mlp->object_lock );
320 if( libvlc_media_list_player_is_playing( p_mlp, p_e ) )
322 libvlc_media_player_stop( p_mlp->p_mi, p_e );
323 /* Don't bother if there was an error. */
324 libvlc_exception_clear( p_e );
329 uninstall_playlist_observer( p_mlp );
330 libvlc_media_list_release( p_mlp->p_mlist );
332 libvlc_media_list_retain( p_mlist );
333 p_mlp->p_mlist = p_mlist;
335 install_playlist_observer( p_mlp );
337 vlc_mutex_unlock( &p_mlp->object_lock );
340 /**************************************************************************
342 **************************************************************************/
343 void libvlc_media_list_player_play( libvlc_media_list_player_t * p_mlp,
344 libvlc_exception_t * p_e )
346 if( !p_mlp->current_playing_item_path )
348 libvlc_media_list_player_next( p_mlp, p_e );
349 return; /* Will set to play */
352 libvlc_media_player_play( p_mlp->p_mi, p_e );
356 /**************************************************************************
358 **************************************************************************/
359 void libvlc_media_list_player_pause( libvlc_media_list_player_t * p_mlp,
360 libvlc_exception_t * p_e )
364 libvlc_media_player_pause( p_mlp->p_mi, p_e );
367 /**************************************************************************
368 * is_playing (Public)
369 **************************************************************************/
371 libvlc_media_list_player_is_playing( libvlc_media_list_player_t * p_mlp,
372 libvlc_exception_t * p_e )
374 libvlc_state_t state = libvlc_media_player_get_state( p_mlp->p_mi, p_e );
375 return (state == libvlc_Opening) || (state == libvlc_Buffering) ||
376 (state == libvlc_Forward) || (state == libvlc_Backward) ||
377 (state == libvlc_Playing);
380 /**************************************************************************
382 **************************************************************************/
384 libvlc_media_list_player_get_state( libvlc_media_list_player_t * p_mlp,
385 libvlc_exception_t * p_e )
389 return libvlc_media_player_get_state( p_mlp->p_mi, p_e );
392 /**************************************************************************
393 * Play item at index (Public)
394 **************************************************************************/
395 void libvlc_media_list_player_play_item_at_index(
396 libvlc_media_list_player_t * p_mlp,
398 libvlc_exception_t * p_e )
400 set_current_playing_item( p_mlp, libvlc_media_list_path_with_root_index(i_index), p_e );
402 if( libvlc_exception_raised( p_e ) )
405 /* Send the next item event */
406 libvlc_event_t event;
407 event.type = libvlc_MediaListPlayerNextItemSet;
408 libvlc_event_send( p_mlp->p_event_manager, &event );
410 libvlc_media_player_play( p_mlp->p_mi, p_e );
413 /**************************************************************************
415 **************************************************************************/
416 void libvlc_media_list_player_play_item(
417 libvlc_media_list_player_t * p_mlp,
418 libvlc_media_t * p_md,
419 libvlc_exception_t * p_e )
421 libvlc_media_list_path_t path = libvlc_media_list_path_of_item( p_mlp->p_mlist, p_md );
424 libvlc_exception_raise( p_e, "No such item in media list" );
427 set_current_playing_item( p_mlp, path, p_e );
429 if( libvlc_exception_raised( p_e ) )
432 libvlc_media_player_play( p_mlp->p_mi, p_e );
435 /**************************************************************************
437 **************************************************************************/
438 void libvlc_media_list_player_stop( libvlc_media_list_player_t * p_mlp,
439 libvlc_exception_t * p_e )
443 /* We are not interested in getting media stop event now */
444 uninstall_media_player_observer( p_mlp );
445 libvlc_media_player_stop( p_mlp->p_mi, p_e );
446 install_media_player_observer( p_mlp );
449 vlc_mutex_lock( &p_mlp->object_lock );
450 free( p_mlp->current_playing_item_path );
451 p_mlp->current_playing_item_path = NULL;
452 vlc_mutex_unlock( &p_mlp->object_lock );
455 /**************************************************************************
457 **************************************************************************/
458 void libvlc_media_list_player_next( libvlc_media_list_player_t * p_mlp,
459 libvlc_exception_t * p_e )
461 libvlc_media_list_path_t path;
463 if (! p_mlp->p_mlist )
465 libvlc_exception_raise( p_e, "No more element to play" );
469 libvlc_media_list_lock( p_mlp->p_mlist );
471 path = get_next_path( p_mlp );
475 libvlc_media_list_unlock( p_mlp->p_mlist );
476 libvlc_exception_raise( p_e, "No more element to play" );
477 libvlc_media_list_player_stop( p_mlp, p_e );
481 set_current_playing_item( p_mlp, path, p_e );
483 libvlc_media_player_play( p_mlp->p_mi, p_e );
485 libvlc_media_list_unlock( p_mlp->p_mlist );
487 /* Send the next item event */
488 libvlc_event_t event;
489 event.type = libvlc_MediaListPlayerNextItemSet;
490 libvlc_event_send( p_mlp->p_event_manager, &event);