1 /*****************************************************************************
2 * playlist.c : Playlist management functions
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Clément Stenac <zorglub@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
24 #include <stdlib.h> /* free(), strtol() */
25 #include <stdio.h> /* sprintf() */
26 #include <string.h> /* strerror() */
31 #include <vlc/input.h>
33 #include "vlc_playlist.h"
35 #include "vlc_interaction.h"
37 #define TITLE_CATEGORY N_( "By category" )
38 #define TITLE_SIMPLE N_( "Manually added" )
39 #define TITLE_ALL N_( "All items, unsorted" )
41 #undef PLAYLIST_PROFILE
44 /*****************************************************************************
46 *****************************************************************************/
47 static void RunThread ( playlist_t * );
48 static void RunPreparse( playlist_preparse_t * );
49 static playlist_item_t * NextItem ( playlist_t * );
50 static int PlayItem ( playlist_t *, playlist_item_t * );
52 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args );
54 void playlist_PreparseEnqueueItemSub( playlist_t *, playlist_item_t * );
56 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
57 playlist_item_t *p_node );
59 /*****************************************************************************
60 * Helper Function for NextItem
61 *****************************************************************************/
63 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
64 playlist_item_t *p_node )
67 playlist_item_t *p_item;
68 for ( i = p_node->i_children - 1; i >= 0; i-- )
70 if( p_node->pp_children[i]->i_children == -1 )
71 return p_node->pp_children[i];
72 else if(p_node->pp_children[i]->i_children > 0)
74 p_item = playlist_RecursiveFindLast( p_playlist,
75 p_node->pp_children[i] );
89 * Create a playlist structure.
90 * \param p_parent the vlc object that is to be the parent of this playlist
91 * \return a pointer to the created playlist, or NULL on error
93 playlist_t * __playlist_Create ( vlc_object_t *p_parent )
95 playlist_t *p_playlist;
96 playlist_view_t *p_view;
99 /* Allocate structure */
100 p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
103 msg_Err( p_parent, "out of memory" );
107 /* These variables control updates */
108 var_Create( p_playlist, "intf-change", VLC_VAR_BOOL );
109 val.b_bool = VLC_TRUE;
110 var_Set( p_playlist, "intf-change", val );
112 var_Create( p_playlist, "item-change", VLC_VAR_INTEGER );
114 var_Set( p_playlist, "item-change", val );
116 var_Create( p_playlist, "item-deleted", VLC_VAR_INTEGER );
118 var_Set( p_playlist, "item-deleted", val );
120 var_Create( p_playlist, "item-append", VLC_VAR_ADDRESS );
122 var_Create( p_playlist, "playlist-current", VLC_VAR_INTEGER );
124 var_Set( p_playlist, "playlist-current", val );
126 var_Create( p_playlist, "intf-popupmenu", VLC_VAR_BOOL );
128 var_Create( p_playlist, "intf-show", VLC_VAR_BOOL );
129 val.b_bool = VLC_TRUE;
130 var_Set( p_playlist, "intf-show", val );
133 /* Variables to control playback */
134 var_CreateGetBool( p_playlist, "play-and-stop" );
135 var_CreateGetBool( p_playlist, "random" );
136 var_CreateGetBool( p_playlist, "repeat" );
137 var_CreateGetBool( p_playlist, "loop" );
139 /* Initialise data structures */
140 vlc_mutex_init( p_playlist, &p_playlist->gc_lock );
141 p_playlist->i_last_id = 0;
142 p_playlist->b_go_next = VLC_TRUE;
143 p_playlist->p_input = NULL;
145 p_playlist->request_date = 0;
147 p_playlist->i_views = 0;
148 p_playlist->pp_views = NULL;
150 p_playlist->i_index = -1;
151 p_playlist->i_size = 0;
152 p_playlist->pp_items = NULL;
153 p_playlist->i_all_size = 0;
154 p_playlist->pp_all_items = 0;
156 playlist_ViewInsert( p_playlist, VIEW_CATEGORY, TITLE_CATEGORY );
157 playlist_ViewInsert( p_playlist, VIEW_ALL, TITLE_ALL );
159 p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
161 p_playlist->p_general =
162 playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
163 _( "General" ), p_view->p_root );
164 p_playlist->p_general->i_flags |= PLAYLIST_RO_FLAG;
166 /* Set startup status
167 * We set to simple view on startup for interfaces that don't do
169 p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
170 p_playlist->status.i_view = VIEW_CATEGORY;
171 p_playlist->status.p_item = NULL;
172 p_playlist->status.p_node = p_view->p_root;
173 p_playlist->request.b_request = VLC_FALSE;
174 p_playlist->status.i_status = PLAYLIST_STOPPED;
177 p_playlist->i_sort = SORT_ID;
178 p_playlist->i_order = ORDER_NORMAL;
180 /* Finally, launch the thread ! */
181 if( vlc_thread_create( p_playlist, "playlist", RunThread,
182 VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
184 msg_Err( p_playlist, "cannot spawn playlist thread" );
185 vlc_object_destroy( p_playlist );
189 /* Preparsing stuff */
190 p_playlist->p_preparse = vlc_object_create( p_playlist,
191 sizeof( playlist_preparse_t ) );
192 if( !p_playlist->p_preparse )
194 msg_Err( p_playlist, "unable to create preparser" );
195 vlc_object_destroy( p_playlist );
200 p_playlist->p_preparse->i_waiting = 0;
201 p_playlist->p_preparse->pp_waiting = NULL;
204 p_playlist->p_interaction = NULL;
206 vlc_object_attach( p_playlist->p_preparse, p_playlist );
207 if( vlc_thread_create( p_playlist->p_preparse, "preparser",
208 RunPreparse, VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
210 msg_Err( p_playlist, "cannot spawn preparse thread" );
211 vlc_object_detach( p_playlist->p_preparse );
212 vlc_object_destroy( p_playlist->p_preparse );
216 /* The object has been initialized, now attach it */
217 vlc_object_attach( p_playlist, p_parent );
223 * Destroy the playlist.
225 * Delete all items in the playlist and free the playlist structure.
226 * \param p_playlist the playlist structure to destroy
227 * \return VLC_SUCCESS or an error
229 int playlist_Destroy( playlist_t * p_playlist )
232 p_playlist->b_die = 1;
234 while( p_playlist->i_sds )
236 playlist_ServicesDiscoveryRemove( p_playlist,
237 p_playlist->pp_sds[0]->psz_module );
240 if( p_playlist->p_interaction )
242 intf_InteractionDestroy( p_playlist->p_interaction );
245 vlc_thread_join( p_playlist->p_preparse );
246 vlc_thread_join( p_playlist );
248 vlc_object_detach( p_playlist->p_preparse );
250 var_Destroy( p_playlist, "intf-change" );
251 var_Destroy( p_playlist, "item-change" );
252 var_Destroy( p_playlist, "playlist-current" );
253 var_Destroy( p_playlist, "intf-popmenu" );
254 var_Destroy( p_playlist, "intf-show" );
255 var_Destroy( p_playlist, "play-and-stop" );
256 var_Destroy( p_playlist, "random" );
257 var_Destroy( p_playlist, "repeat" );
258 var_Destroy( p_playlist, "loop" );
260 playlist_Clear( p_playlist );
262 for( i = p_playlist->i_views - 1; i >= 0 ; i-- )
264 playlist_view_t *p_view = p_playlist->pp_views[i];
265 if( p_view->psz_name )
266 free( p_view->psz_name );
267 playlist_ItemDelete( p_view->p_root );
268 REMOVE_ELEM( p_playlist->pp_views, p_playlist->i_views, i );
272 vlc_mutex_destroy( &p_playlist->gc_lock );
273 vlc_object_destroy( p_playlist->p_preparse );
274 vlc_object_destroy( p_playlist );
281 * Do a playlist action.
283 * If there is something in the playlist then you can do playlist actions.
285 * Playlist lock must not be taken when calling this function
287 * \param p_playlist the playlist to do the command on
288 * \param i_query the command to do
289 * \param variable number of arguments
290 * \return VLC_SUCCESS or an error
292 int playlist_LockControl( playlist_t * p_playlist, int i_query, ... )
296 va_start( args, i_query );
297 vlc_mutex_lock( &p_playlist->object_lock );
298 i_result = playlist_vaControl( p_playlist, i_query, args );
300 vlc_mutex_unlock( &p_playlist->object_lock );
305 * Do a playlist action.
307 * If there is something in the playlist then you can do playlist actions.
309 * Playlist lock must be taken when calling this function
311 * \param p_playlist the playlist to do the command on
312 * \param i_query the command to do
313 * \param variable number of arguments
314 * \return VLC_SUCCESS or an error
316 int playlist_Control( playlist_t * p_playlist, int i_query, ... )
320 va_start( args, i_query );
321 i_result = playlist_vaControl( p_playlist, i_query, args );
327 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args )
329 playlist_view_t *p_view;
330 playlist_item_t *p_item, *p_node;
334 #ifdef PLAYLIST_PROFILE
335 p_playlist->request_date = mdate();
338 if( p_playlist->i_size <= 0 )
346 p_playlist->status.i_status = PLAYLIST_STOPPED;
347 p_playlist->request.b_request = VLC_TRUE;
348 p_playlist->request.p_item = NULL;
351 case PLAYLIST_ITEMPLAY:
352 p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
353 if ( p_item == NULL || p_item->input.psz_uri == NULL )
355 p_playlist->status.i_status = PLAYLIST_RUNNING;
356 p_playlist->request.i_skip = 0;
357 p_playlist->request.b_request = VLC_TRUE;
358 p_playlist->request.p_item = p_item;
359 p_playlist->request.i_view = p_playlist->status.i_view;
360 p_view = playlist_ViewFind( p_playlist, p_playlist->status.i_view );
363 p_playlist->request.p_node = p_view->p_root;
367 p_playlist->request.p_node = NULL;
371 case PLAYLIST_VIEWPLAY:
372 i_view = (int)va_arg( args,int );
373 p_node = (playlist_item_t *)va_arg( args, playlist_item_t * );
374 p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
375 if ( p_node == NULL ) //|| (p_item != NULL && p_item->input.psz_uri
378 p_playlist->status.i_status = PLAYLIST_STOPPED;
379 p_playlist->request.b_request = VLC_TRUE;
382 p_playlist->status.i_status = PLAYLIST_RUNNING;
383 p_playlist->request.i_skip = 0;
384 p_playlist->request.b_request = VLC_TRUE;
385 p_playlist->request.i_view = i_view;
386 p_playlist->request.p_node = p_node;
387 p_playlist->request.p_item = p_item;
389 /* Don't go further if the node doesn't want to */
390 if( ! p_playlist->request.p_node->i_flags & PLAYLIST_SKIP_FLAG )
392 p_playlist->b_go_next = VLC_FALSE;
396 p_playlist->b_go_next = VLC_TRUE;
401 p_playlist->status.i_status = PLAYLIST_RUNNING;
403 if( p_playlist->p_input )
405 val.i_int = PLAYING_S;
406 var_Set( p_playlist->p_input, "state", val );
410 /* FIXME : needed ? */
411 p_playlist->request.b_request = VLC_TRUE;
412 p_playlist->request.i_view = p_playlist->status.i_view;
413 p_playlist->request.p_node = p_playlist->status.p_node;
414 p_playlist->request.p_item = p_playlist->status.p_item;
415 p_playlist->request.i_skip = 0;
416 p_playlist->request.i_goto = -1;
419 case PLAYLIST_AUTOPLAY:
420 p_playlist->status.i_status = PLAYLIST_RUNNING;
421 p_playlist->status.p_node = p_playlist->p_general;
423 p_playlist->request.b_request = VLC_FALSE;
428 if( p_playlist->p_input )
429 var_Get( p_playlist->p_input, "state", &val );
431 if( val.i_int == PAUSE_S )
433 p_playlist->status.i_status = PLAYLIST_RUNNING;
434 if( p_playlist->p_input )
436 val.i_int = PLAYING_S;
437 var_Set( p_playlist->p_input, "state", val );
442 p_playlist->status.i_status = PLAYLIST_PAUSED;
443 if( p_playlist->p_input )
446 var_Set( p_playlist->p_input, "state", val );
452 p_playlist->request.i_view = p_playlist->status.i_view;
453 if( p_playlist->status.i_view > -1 )
455 p_playlist->request.p_node = p_playlist->status.p_node;
456 p_playlist->request.p_item = p_playlist->status.p_item;
460 p_playlist->request.p_node = NULL;
461 p_playlist->request.p_item = NULL;
463 p_playlist->request.i_skip = (int) va_arg( args, int );
464 p_playlist->request.b_request = VLC_TRUE;
468 p_playlist->status.i_status = PLAYLIST_RUNNING;
469 p_playlist->request.p_node = NULL;
470 p_playlist->request.p_item = NULL;
471 p_playlist->request.i_view = -1;
472 p_playlist->request.i_goto = (int) va_arg( args, int );
473 p_playlist->request.b_request = VLC_TRUE;
477 msg_Err( p_playlist, "unknown playlist query" );
485 int playlist_PreparseEnqueue( playlist_t *p_playlist,
486 input_item_t *p_item )
488 vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
489 INSERT_ELEM( p_playlist->p_preparse->pp_waiting,
490 p_playlist->p_preparse->i_waiting,
491 p_playlist->p_preparse->i_waiting,
493 vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
497 /* Should only be called if playlist and preparser are locked */
498 void playlist_PreparseEnqueueItemSub( playlist_t *p_playlist,
499 playlist_item_t *p_item )
502 if( p_item->i_children == -1 )
504 INSERT_ELEM( p_playlist->p_preparse->pp_waiting,
505 p_playlist->p_preparse->i_waiting,
506 p_playlist->p_preparse->i_waiting,
511 for( i = 0; i < p_item->i_children; i++)
513 playlist_PreparseEnqueueItemSub( p_playlist,
514 p_item->pp_children[i] );
519 int playlist_PreparseEnqueueItem( playlist_t *p_playlist,
520 playlist_item_t *p_item )
522 vlc_mutex_lock( &p_playlist->object_lock );
523 vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
524 playlist_PreparseEnqueueItemSub( p_playlist, p_item );
525 vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
526 vlc_mutex_unlock( &p_playlist->object_lock );
531 /* Destroy remaining objects */
532 static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
533 mtime_t destroy_date )
537 if( destroy_date > mdate() ) return destroy_date;
539 if( destroy_date == 0 )
541 /* give a little time */
542 return mdate() + I64C(1000000);
546 vlc_mutex_lock( &p_playlist->gc_lock );
547 while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
549 if( p_obj->p_parent != (vlc_object_t*)p_playlist )
551 /* only first child (ie unused) */
552 vlc_object_release( p_obj );
555 if( i_type == VLC_OBJECT_VOUT )
557 msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
558 vlc_object_detach( p_obj );
559 vlc_object_release( p_obj );
560 vout_Destroy( (vout_thread_t *)p_obj );
562 else if( i_type == VLC_OBJECT_SOUT )
564 vlc_object_release( p_obj );
565 sout_DeleteInstance( (sout_instance_t*)p_obj );
568 vlc_mutex_unlock( &p_playlist->gc_lock );
573 /*****************************************************************************
574 * RunThread: main playlist thread
575 *****************************************************************************/
576 static void RunThread ( playlist_t *p_playlist )
579 playlist_item_t *p_item = NULL;
581 mtime_t i_vout_destroyed_date = 0;
582 mtime_t i_sout_destroyed_date = 0;
584 playlist_item_t *p_autodelete_item = NULL;
586 /* Tell above that we're ready */
587 vlc_thread_ready( p_playlist );
589 while( !p_playlist->b_die )
591 if( p_playlist->p_interaction )
593 intf_InteractionManage( p_playlist );
596 vlc_mutex_lock( &p_playlist->object_lock );
598 /* First, check if we have something to do */
599 /* FIXME : this can be called several times */
600 if( p_playlist->request.b_request )
602 #ifdef PLAYLIST_PROFILE
603 msg_Dbg(p_playlist, "beginning processing of request, "
604 I64Fi" us ", mdate() - p_playlist->request_date );
606 /* Stop the existing input */
607 if( p_playlist->p_input )
609 input_StopThread( p_playlist->p_input );
611 /* The code below will start the next input for us */
612 if( p_playlist->status.i_status == PLAYLIST_STOPPED )
614 p_playlist->request.b_request = VLC_FALSE;
618 /* If there is an input, check that it doesn't need to die. */
619 if( p_playlist->p_input )
621 /* This input is dead. Remove it ! */
622 if( p_playlist->p_input->b_dead )
624 input_thread_t *p_input;
626 p_input = p_playlist->p_input;
627 p_playlist->p_input = NULL;
629 /* Release the playlist lock, because we may get stuck
630 * in input_DestroyThread() for some time. */
631 vlc_mutex_unlock( &p_playlist->object_lock );
634 input_DestroyThread( p_input );
636 /* Unlink current input
637 * (_after_ input_DestroyThread for vout garbage collector) */
638 vlc_object_detach( p_input );
641 vlc_object_destroy( p_input );
643 i_vout_destroyed_date = 0;
644 i_sout_destroyed_date = 0;
646 if( p_playlist->status.p_item->i_flags
647 & PLAYLIST_REMOVE_FLAG )
649 playlist_ItemDelete( p_item );
650 p_playlist->status.p_item = NULL;
655 /* This input is dying, let it do */
656 else if( p_playlist->p_input->b_die )
660 /* This input has finished, ask it to die ! */
661 else if( p_playlist->p_input->b_error
662 || p_playlist->p_input->b_eof )
664 /* TODO FIXME XXX TODO FIXME XXX */
665 /* Check for autodeletion */
667 if( p_playlist->status.p_item->i_flags & PLAYLIST_DEL_FLAG )
669 p_autodelete_item = p_playlist->status.p_item;
671 input_StopThread( p_playlist->p_input );
672 /* Select the next playlist item */
673 vlc_mutex_unlock( &p_playlist->object_lock );
676 else if( p_playlist->p_input->i_state != INIT_S )
678 vlc_mutex_unlock( &p_playlist->object_lock );
679 i_vout_destroyed_date =
680 ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
681 i_vout_destroyed_date );
682 i_sout_destroyed_date =
683 ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
684 i_sout_destroyed_date );
685 vlc_mutex_lock( &p_playlist->object_lock );
688 else if( p_playlist->status.i_status != PLAYLIST_STOPPED )
690 /* Start another input.
691 * Get the next item to play */
692 p_item = NextItem( p_playlist );
697 if( p_autodelete_item )
699 playlist_Delete( p_playlist,
700 p_autodelete_item->input.i_id );
701 p_autodelete_item = NULL;
703 p_playlist->status.i_status = PLAYLIST_STOPPED;
704 vlc_mutex_unlock( &p_playlist->object_lock );
708 PlayItem( p_playlist, p_item );
710 if( p_autodelete_item )
712 playlist_Delete( p_playlist, p_autodelete_item->input.i_id );
713 p_autodelete_item = NULL;
716 else if( p_playlist->status.i_status == PLAYLIST_STOPPED )
718 if( p_item && p_playlist->status.p_item &&
719 p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
721 playlist_ItemDelete( p_item );
722 p_playlist->status.p_item = NULL;
725 /* Collect garbage */
726 vlc_mutex_unlock( &p_playlist->object_lock );
727 i_sout_destroyed_date =
728 ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
729 i_vout_destroyed_date =
730 ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
731 vlc_mutex_lock( &p_playlist->object_lock );
733 vlc_mutex_unlock( &p_playlist->object_lock );
735 msleep( INTF_IDLE_SLEEP / 2 );
737 /* Stop sleeping earlier if we have work */
738 /* TODO : statistics about this */
739 if ( p_playlist->request.b_request &&
740 p_playlist->status.i_status == PLAYLIST_RUNNING )
745 msleep( INTF_IDLE_SLEEP / 2 );
750 /* If there is an input, kill it */
753 vlc_mutex_lock( &p_playlist->object_lock );
755 if( p_playlist->p_input == NULL )
757 vlc_mutex_unlock( &p_playlist->object_lock );
761 if( p_playlist->p_input->b_dead )
763 input_thread_t *p_input;
765 /* Unlink current input */
766 p_input = p_playlist->p_input;
767 p_playlist->p_input = NULL;
768 vlc_mutex_unlock( &p_playlist->object_lock );
771 input_DestroyThread( p_input );
772 /* Unlink current input (_after_ input_DestroyThread for vout
773 * garbage collector)*/
774 vlc_object_detach( p_input );
777 vlc_object_destroy( p_input );
780 else if( p_playlist->p_input->b_die )
782 /* This input is dying, leave it alone */
785 else if( p_playlist->p_input->b_error || p_playlist->p_input->b_eof )
787 input_StopThread( p_playlist->p_input );
788 vlc_mutex_unlock( &p_playlist->object_lock );
793 p_playlist->p_input->b_eof = 1;
796 vlc_mutex_unlock( &p_playlist->object_lock );
798 msleep( INTF_IDLE_SLEEP );
801 /* close all remaining sout */
802 while( ( p_obj = vlc_object_find( p_playlist,
803 VLC_OBJECT_SOUT, FIND_CHILD ) ) )
805 vlc_object_release( p_obj );
806 sout_DeleteInstance( (sout_instance_t*)p_obj );
809 /* close all remaining vout */
810 while( ( p_obj = vlc_object_find( p_playlist,
811 VLC_OBJECT_VOUT, FIND_CHILD ) ) )
813 vlc_object_detach( p_obj );
814 vlc_object_release( p_obj );
815 vout_Destroy( (vout_thread_t *)p_obj );
819 /* Queue for items to preparse */
820 static void RunPreparse ( playlist_preparse_t *p_obj )
822 playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
825 /* Tell above that we're ready */
826 vlc_thread_ready( p_obj );
828 while( !p_playlist->b_die )
830 vlc_mutex_lock( &p_obj->object_lock );
832 if( p_obj->i_waiting > 0 )
834 input_item_t *p_current = p_obj->pp_waiting[0];
835 REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
836 vlc_mutex_unlock( &p_obj->object_lock );
837 input_Preparse( p_playlist, p_current );
838 var_SetInteger( p_playlist, "item-change", p_current->i_id );
839 vlc_mutex_lock( &p_obj->object_lock );
841 b_sleep = ( p_obj->i_waiting == 0 );
843 vlc_mutex_unlock( &p_obj->object_lock );
845 if( p_obj->i_waiting == 0 )
847 msleep( INTF_IDLE_SLEEP );
852 /*****************************************************************************
854 *****************************************************************************
855 * This function calculates the next playlist item, depending
856 * on the playlist course mode (forward, backward, random, view,...).
857 *****************************************************************************/
858 static playlist_item_t * NextItem( playlist_t *p_playlist )
860 playlist_item_t *p_new = NULL;
861 int i_skip,i_goto,i, i_new, i_count ;
862 playlist_view_t *p_view;
864 vlc_bool_t b_loop = var_GetBool( p_playlist, "loop" );
865 vlc_bool_t b_random = var_GetBool( p_playlist, "random" );
866 vlc_bool_t b_repeat = var_GetBool( p_playlist, "repeat" );
867 vlc_bool_t b_playstop = var_GetBool( p_playlist, "play-and-stop" );
869 #ifdef PLAYLIST_PROFILE
870 /* Calculate time needed */
871 int64_t start = mdate();
874 /* Handle quickly a few special cases */
876 /* No items to play */
877 if( p_playlist->i_size == 0 )
879 msg_Info( p_playlist, "playlist is empty" );
882 /* Nothing requested */
883 if( !p_playlist->request.b_request && p_playlist->status.p_item == NULL )
885 msg_Dbg( p_playlist,"nothing requested, starting" );
888 /* Repeat and play/stop */
889 if( !p_playlist->request.b_request && b_repeat == VLC_TRUE &&
890 p_playlist->status.p_item )
892 msg_Dbg( p_playlist,"repeating item" );
893 return p_playlist->status.p_item;
896 if( !p_playlist->request.b_request && b_playstop == VLC_TRUE )
898 msg_Dbg( p_playlist,"stopping (play and stop)");
902 if( !p_playlist->request.b_request && p_playlist->status.p_item &&
903 !( p_playlist->status.p_item->i_flags & PLAYLIST_SKIP_FLAG ) )
905 msg_Dbg( p_playlist, "no-skip mode, stopping") ;
909 /* TODO: improve this (only use current node) */
910 /* TODO: use the "shuffled view" internally ? */
911 /* Random case. This is an exception: if request, but request is skip +- 1
912 * we don't go to next item but select a new random one. */
914 ( !p_playlist->request.b_request ||
915 ( p_playlist->request.b_request && ( p_playlist->request.p_item == NULL ||
916 p_playlist->request.i_skip == 1 || p_playlist->request.i_skip == -1 ) ) ) )
918 /* how many items to choose from ? */
920 for ( i = 0; i < p_playlist->i_size; i++ )
922 if ( p_playlist->pp_items[i]->i_nb_played == 0 )
928 /* Don't loop? Exit! */
931 /* Otherwise reset the counter */
932 for ( i = 0; i < p_playlist->i_size; i++ )
934 p_playlist->pp_items[i]->i_nb_played = 0;
936 i_count = p_playlist->i_size;
938 srand( (unsigned int)mdate() );
939 i = rand() % i_count + 1 ;
940 /* loop thru the list and count down the unplayed items to the selected one */
941 for ( i_new = 0; i_new < p_playlist->i_size && i > 0; i_new++ )
943 if ( p_playlist->pp_items[i_new]->i_nb_played == 0 )
948 p_playlist->request.i_skip = 0;
949 p_playlist->request.b_request = VLC_FALSE;
950 return p_playlist->pp_items[i_new];
953 /* Start the real work */
954 if( p_playlist->request.b_request )
956 #ifdef PLAYLIST_DEBUG
957 msg_Dbg( p_playlist,"processing request" );
959 /* We are not playing from a view */
960 if( p_playlist->request.i_view == -1 )
962 #ifdef PLAYLIST_DEBUG
963 msg_Dbg( p_playlist, "non-view mode request");
965 /* Directly select the item, just like now */
966 p_new = p_playlist->request.p_item;
967 i_skip = p_playlist->request.i_skip;
968 i_goto = p_playlist->request.i_goto;
970 if( p_playlist->i_index < 0 ) p_playlist->i_index = 0;
972 p_new = p_playlist->pp_items[p_playlist->i_index];
974 if( i_goto >= 0 && i_goto < p_playlist->i_size )
976 p_playlist->i_index = i_goto;
977 p_new = p_playlist->pp_items[p_playlist->i_index];
978 p_playlist->request.i_goto = -1;
983 if( p_playlist->i_index + i_skip < p_playlist->i_size &&
984 p_playlist->i_index + i_skip >= 0 )
986 p_playlist->i_index += i_skip;
987 p_new = p_playlist->pp_items[p_playlist->i_index];
989 p_playlist->request.i_skip = 0;
994 #ifdef PLAYLIST_DEBUG
995 msg_Dbg( p_playlist, "view mode request" );
997 p_new = p_playlist->request.p_item;
998 i_skip = p_playlist->request.i_skip;
1000 /* If we are asked for a node, take its first item */
1001 if( p_playlist->request.p_item == NULL && i_skip == 0 )
1006 p_view = playlist_ViewFind( p_playlist,p_playlist->request.i_view );
1007 p_playlist->status.p_node = p_playlist->request.p_node;
1008 p_playlist->status.i_view = p_playlist->request.i_view;
1011 msg_Err( p_playlist, "p_view is NULL and should not! (requested view is %i", p_playlist->request.i_view );
1013 else if( i_skip > 0 )
1015 for( i = i_skip; i > 0 ; i-- )
1017 p_new = playlist_FindNextFromParent( p_playlist,
1018 p_playlist->request.i_view,
1020 p_playlist->request.p_node,
1024 #ifdef PLAYLIST_DEBUG
1025 msg_Dbg( p_playlist, "looping" );
1027 p_new = playlist_FindNextFromParent( p_playlist,
1028 p_playlist->request.i_view,
1032 if( p_new == NULL ) break;
1036 else if( i_skip < 0 )
1038 for( i = i_skip; i < 0 ; i++ )
1040 p_new = playlist_FindPrevFromParent( p_playlist,
1041 p_playlist->request.i_view,
1043 p_playlist->request.p_node,
1047 /* We reach the beginning of the playlist.
1048 Go back to the last item. */
1049 p_new = playlist_RecursiveFindLast( p_playlist,
1052 if( p_new == NULL ) break;
1057 /* Clear the request */
1058 p_playlist->request.b_request = VLC_FALSE;
1060 /* "Automatic" item change ( next ) */
1063 p_playlist->request_date = 0;
1065 if( p_playlist->status.i_view == -1 )
1067 #ifdef PLAYLIST_DEBUG
1068 msg_Dbg( p_playlist, "no request - old mode" );
1070 if( p_playlist->i_index + 1 < p_playlist->i_size )
1072 p_playlist->i_index++;
1073 p_new = p_playlist->pp_items[p_playlist->i_index];
1074 if( !( p_new->i_flags & PLAYLIST_SKIP_FLAG ) )
1081 if( b_loop && p_playlist->i_size > 0)
1083 p_playlist->i_index = 0;
1084 p_new = p_playlist->pp_items[0];
1090 /* We are playing with a view */
1093 #ifdef PLAYLIST_DEBUG
1094 msg_Dbg( p_playlist,"no request - from a view" );
1096 playlist_view_t *p_view =
1097 playlist_ViewFind( p_playlist,
1098 p_playlist->status.i_view );
1101 msg_Err( p_playlist, "p_view is NULL and should not! (FIXME)" );
1105 p_new = playlist_FindNextFromParent( p_playlist,
1106 p_playlist->status.i_view,
1108 p_playlist->status.p_node,
1109 p_playlist->status.p_item );
1110 if( p_new == NULL && b_loop )
1112 #ifdef PLAYLIST_DEBUG
1113 msg_Dbg( p_playlist, "looping" );
1115 p_new = playlist_FindNextFromParent( p_playlist,
1116 p_playlist->status.i_view,
1121 if( p_new != NULL && !(p_new->i_flags & PLAYLIST_SKIP_FLAG) )
1128 if( p_playlist->i_index >= 0 && p_new != NULL &&
1129 p_playlist->pp_items[p_playlist->i_index] != p_new )
1131 p_playlist->i_index = playlist_GetPositionById( p_playlist,
1132 p_new->input.i_id );
1135 #ifdef PLAYLIST_PROFILE
1136 msg_Dbg(p_playlist,"next item found in "I64Fi " us", mdate()-start );
1141 msg_Info( p_playlist, "nothing to play" );
1146 /*****************************************************************************
1147 * PlayItem: start the input thread for an item
1148 ****************************************************************************/
1149 static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
1153 msg_Dbg( p_playlist, "creating new input thread" );
1155 p_item->i_nb_played++;
1156 p_playlist->status.p_item = p_item;
1158 p_playlist->i_index = playlist_GetPositionById( p_playlist,
1159 p_item->input.i_id );
1161 #ifdef PLAYLIST_PROFILE
1162 if( p_playlist->request_date != 0 )
1164 msg_Dbg( p_playlist, "request processed after "I64Fi " us",
1165 mdate() - p_playlist->request_date );
1169 p_playlist->p_input = input_CreateThread( p_playlist, &p_item->input );
1171 val.i_int = p_item->input.i_id;
1172 /* unlock the playlist to set the var...mmm */
1173 vlc_mutex_unlock( &p_playlist->object_lock);
1174 var_Set( p_playlist, "playlist-current", val);
1175 vlc_mutex_lock( &p_playlist->object_lock);