git.sesse.net Git - vlc/blob - src/playlist/playlist.c

   1 /*****************************************************************************
   2  * playlist.c : Playlist management functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Clément Stenac <zorglub@videolan.org>
   9  *
  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.
  14  *
  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.
  19  *
  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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24 #include <stdlib.h>                                      /* free(), strtol() */
  25 #include <stdio.h>                                              /* sprintf() */
  26 #include <string.h>                                            /* strerror() */
  27
  28 #include <vlc/vlc.h>
  29 #include <vlc/vout.h>
  30 #include <vlc/sout.h>
  31 #include <vlc/input.h>
  32
  33 #include "vlc_playlist.h"
  34
  35 #include "vlc_interaction.h"
  36
  37 #define TITLE_CATEGORY N_( "By category" )
  38 #define TITLE_SIMPLE   N_( "Manually added" )
  39 #define TITLE_ALL      N_( "All items, unsorted" )
  40
  41 #undef PLAYLIST_PROFILE
  42 #undef PLAYLIST_DEBUG
  43
  44 /*****************************************************************************
  45  * Local prototypes
  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 * );
  51
  52 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args );
  53
  54 void playlist_PreparseEnqueueItemSub( playlist_t *, playlist_item_t * );
  55
  56 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
  57                                             playlist_item_t *p_node );
  58
  59 /*****************************************************************************
  60  * Helper Function for NextItem
  61  *****************************************************************************/
  62
  63 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
  64                                             playlist_item_t *p_node )
  65 {
  66     int i;
  67     playlist_item_t *p_item;
  68     for ( i = p_node->i_children - 1; i >= 0; i-- )
  69     {
  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)
  73         {
  74              p_item = playlist_RecursiveFindLast( p_playlist,
  75                                         p_node->pp_children[i] );
  76             if ( p_item != NULL )
  77                 return p_item;
  78         }
  79         else if( i == 0 )
  80             return NULL;
  81     }
  82     return NULL;
  83 }
  84
  85
  86 /**
  87  * Create playlist
  88  *
  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
  92  */
  93 playlist_t * __playlist_Create ( vlc_object_t *p_parent )
  94 {
  95     playlist_t *p_playlist;
  96     playlist_view_t *p_view;
  97     vlc_value_t     val;
  98
  99     /* Allocate structure */
 100     p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
 101     if( !p_playlist )
 102     {
 103         msg_Err( p_parent, "out of memory" );
 104         return NULL;
 105     }
 106
 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 );
 111
 112     var_Create( p_playlist, "item-change", VLC_VAR_INTEGER );
 113     val.i_int = -1;
 114     var_Set( p_playlist, "item-change", val );
 115
 116     var_Create( p_playlist, "item-deleted", VLC_VAR_INTEGER );
 117     val.i_int = -1;
 118     var_Set( p_playlist, "item-deleted", val );
 119
 120     var_Create( p_playlist, "item-append", VLC_VAR_ADDRESS );
 121
 122     var_Create( p_playlist, "playlist-current", VLC_VAR_INTEGER );
 123     val.i_int = -1;
 124     var_Set( p_playlist, "playlist-current", val );
 125
 126     var_Create( p_playlist, "intf-popupmenu", VLC_VAR_BOOL );
 127
 128     var_Create( p_playlist, "intf-show", VLC_VAR_BOOL );
 129     val.b_bool = VLC_TRUE;
 130     var_Set( p_playlist, "intf-show", val );
 131
 132
 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" );
 138
 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;
 144
 145     p_playlist->request_date = 0;
 146
 147     p_playlist->i_views = 0;
 148     p_playlist->pp_views = NULL;
 149
 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;
 155
 156     playlist_ViewInsert( p_playlist, VIEW_CATEGORY, TITLE_CATEGORY );
 157     playlist_ViewInsert( p_playlist, VIEW_ALL, TITLE_ALL );
 158
 159     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 160
 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;
 165
 166     /* Set startup status
 167      * We set to simple view on startup for interfaces that don't do
 168      * anything */
 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;
 175
 176     p_playlist->i_sort = SORT_ID;
 177     p_playlist->i_order = ORDER_NORMAL;
 178
 179     p_playlist->p_stats = (global_stats_t *)malloc( sizeof( global_stats_t ) );
 180     vlc_mutex_init( p_playlist, &p_playlist->p_stats->lock );
 181
 182     /* Finally, launch the thread ! */
 183     if( vlc_thread_create( p_playlist, "playlist", RunThread,
 184                            VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 185     {
 186         msg_Err( p_playlist, "cannot spawn playlist thread" );
 187         vlc_object_destroy( p_playlist );
 188         return NULL;
 189     }
 190
 191     /* Preparsing stuff */
 192     p_playlist->p_preparse = vlc_object_create( p_playlist,
 193                                                 sizeof( playlist_preparse_t ) );
 194     if( !p_playlist->p_preparse )
 195     {
 196         msg_Err( p_playlist, "unable to create preparser" );
 197         vlc_object_destroy( p_playlist );
 198         return NULL;
 199     }
 200
 201     // Preparse
 202     p_playlist->p_preparse->i_waiting = 0;
 203     p_playlist->p_preparse->pi_waiting = NULL;
 204
 205     // Interaction
 206     p_playlist->p_interaction = NULL;
 207
 208     vlc_object_attach( p_playlist->p_preparse, p_playlist );
 209     if( vlc_thread_create( p_playlist->p_preparse, "preparser",
 210                            RunPreparse, VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 211     {
 212         msg_Err( p_playlist, "cannot spawn preparse thread" );
 213         vlc_object_detach( p_playlist->p_preparse );
 214         vlc_object_destroy( p_playlist->p_preparse );
 215         return NULL;
 216     }
 217
 218     /* The object has been initialized, now attach it */
 219     vlc_object_attach( p_playlist, p_parent );
 220
 221     return p_playlist;
 222 }
 223
 224 /**
 225  * Destroy the playlist.
 226  *
 227  * Delete all items in the playlist and free the playlist structure.
 228  * \param p_playlist the playlist structure to destroy
 229  * \return VLC_SUCCESS or an error
 230  */
 231 int playlist_Destroy( playlist_t * p_playlist )
 232 {
 233     int i;
 234     p_playlist->b_die = 1;
 235
 236     while( p_playlist->i_sds )
 237     {
 238         playlist_ServicesDiscoveryRemove( p_playlist,
 239                                           p_playlist->pp_sds[0]->psz_module );
 240     }
 241
 242     if( p_playlist->p_interaction )
 243     {
 244         intf_InteractionDestroy( p_playlist->p_interaction );
 245     }
 246
 247     vlc_thread_join( p_playlist->p_preparse );
 248     vlc_thread_join( p_playlist );
 249
 250     vlc_object_detach( p_playlist->p_preparse );
 251
 252     var_Destroy( p_playlist, "intf-change" );
 253     var_Destroy( p_playlist, "item-change" );
 254     var_Destroy( p_playlist, "playlist-current" );
 255     var_Destroy( p_playlist, "intf-popmenu" );
 256     var_Destroy( p_playlist, "intf-show" );
 257     var_Destroy( p_playlist, "play-and-stop" );
 258     var_Destroy( p_playlist, "random" );
 259     var_Destroy( p_playlist, "repeat" );
 260     var_Destroy( p_playlist, "loop" );
 261
 262     playlist_Clear( p_playlist );
 263
 264     for( i = p_playlist->i_views - 1; i >= 0 ; i-- )
 265     {
 266         playlist_view_t *p_view = p_playlist->pp_views[i];
 267         if( p_view->psz_name )
 268             free( p_view->psz_name );
 269         playlist_ItemDelete( p_view->p_root );
 270         REMOVE_ELEM( p_playlist->pp_views, p_playlist->i_views, i );
 271         free( p_view );
 272     }
 273
 274     if( p_playlist->p_stats )
 275         free( p_playlist->p_stats );
 276
 277     vlc_mutex_destroy( &p_playlist->gc_lock );
 278     vlc_object_destroy( p_playlist->p_preparse );
 279     vlc_object_destroy( p_playlist );
 280
 281     return VLC_SUCCESS;
 282 }
 283
 284
 285 /**
 286  * Do a playlist action.
 287  *
 288  * If there is something in the playlist then you can do playlist actions.
 289  *
 290  * Playlist lock must not be taken when calling this function
 291  *
 292  * \param p_playlist the playlist to do the command on
 293  * \param i_query the command to do
 294  * \param variable number of arguments
 295  * \return VLC_SUCCESS or an error
 296  */
 297 int playlist_LockControl( playlist_t * p_playlist, int i_query, ... )
 298 {
 299     va_list args;
 300     int i_result;
 301     va_start( args, i_query );
 302     vlc_mutex_lock( &p_playlist->object_lock );
 303     i_result = playlist_vaControl( p_playlist, i_query, args );
 304     va_end( args );
 305     vlc_mutex_unlock( &p_playlist->object_lock );
 306     return i_result;
 307 }
 308
 309 /**
 310  * Do a playlist action.
 311  *
 312  * If there is something in the playlist then you can do playlist actions.
 313  *
 314  * Playlist lock must be taken when calling this function
 315  *
 316  * \param p_playlist the playlist to do the command on
 317  * \param i_query the command to do
 318  * \param variable number of arguments
 319  * \return VLC_SUCCESS or an error
 320  */
 321 int playlist_Control( playlist_t * p_playlist, int i_query, ... )
 322 {
 323     va_list args;
 324     int i_result;
 325     va_start( args, i_query );
 326     i_result = playlist_vaControl( p_playlist, i_query, args );
 327     va_end( args );
 328
 329     return i_result;
 330 }
 331
 332 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args )
 333 {
 334     playlist_view_t *p_view;
 335     playlist_item_t *p_item, *p_node;
 336     int i_view;
 337     vlc_value_t val;
 338
 339 #ifdef PLAYLIST_PROFILE
 340     p_playlist->request_date = mdate();
 341 #endif
 342
 343     if( p_playlist->i_size <= 0 )
 344     {
 345         return VLC_EGENERIC;
 346     }
 347
 348     switch( i_query )
 349     {
 350     case PLAYLIST_STOP:
 351         p_playlist->status.i_status = PLAYLIST_STOPPED;
 352         p_playlist->request.b_request = VLC_TRUE;
 353         p_playlist->request.p_item = NULL;
 354         break;
 355
 356     case PLAYLIST_ITEMPLAY:
 357         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 358         if ( p_item == NULL || p_item->input.psz_uri == NULL )
 359             return VLC_EGENERIC;
 360         p_playlist->status.i_status = PLAYLIST_RUNNING;
 361         p_playlist->request.i_skip = 0;
 362         p_playlist->request.b_request = VLC_TRUE;
 363         p_playlist->request.p_item = p_item;
 364         p_playlist->request.i_view = p_playlist->status.i_view;
 365         p_view = playlist_ViewFind( p_playlist, p_playlist->status.i_view );
 366         if( p_view )
 367         {
 368             p_playlist->request.p_node = p_view->p_root;
 369         }
 370         else
 371         {
 372             p_playlist->request.p_node = NULL;
 373         }
 374         break;
 375
 376     case PLAYLIST_VIEWPLAY:
 377         i_view = (int)va_arg( args,int );
 378         p_node = (playlist_item_t *)va_arg( args, playlist_item_t * );
 379         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 380         if ( p_node == NULL ) //|| (p_item != NULL && p_item->input.psz_uri
 381                                 //                         == NULL ))
 382         {
 383             p_playlist->status.i_status = PLAYLIST_STOPPED;
 384             p_playlist->request.b_request = VLC_TRUE;
 385             return VLC_SUCCESS;
 386         }
 387         p_playlist->status.i_status = PLAYLIST_RUNNING;
 388         p_playlist->request.i_skip = 0;
 389         p_playlist->request.b_request = VLC_TRUE;
 390         p_playlist->request.i_view = i_view;
 391         p_playlist->request.p_node = p_node;
 392         p_playlist->request.p_item = p_item;
 393
 394         /* Don't go further if the node doesn't want to */
 395         if( ! p_playlist->request.p_node->i_flags & PLAYLIST_SKIP_FLAG )
 396         {
 397             p_playlist->b_go_next = VLC_FALSE;
 398         }
 399         else
 400         {
 401             p_playlist->b_go_next = VLC_TRUE;
 402         }
 403         break;
 404
 405     case PLAYLIST_PLAY:
 406         p_playlist->status.i_status = PLAYLIST_RUNNING;
 407
 408         if( p_playlist->p_input )
 409         {
 410             val.i_int = PLAYING_S;
 411             var_Set( p_playlist->p_input, "state", val );
 412             break;
 413         }
 414
 415         /* FIXME : needed ? */
 416         p_playlist->request.b_request = VLC_TRUE;
 417         p_playlist->request.i_view = p_playlist->status.i_view;
 418         p_playlist->request.p_node = p_playlist->status.p_node;
 419         p_playlist->request.p_item = p_playlist->status.p_item;
 420         p_playlist->request.i_skip = 0;
 421         p_playlist->request.i_goto = -1;
 422         break;
 423
 424     case PLAYLIST_AUTOPLAY:
 425         p_playlist->status.i_status = PLAYLIST_RUNNING;
 426         p_playlist->status.p_node = p_playlist->p_general;
 427
 428         p_playlist->request.b_request = VLC_FALSE;
 429         break;
 430
 431     case PLAYLIST_PAUSE:
 432         val.i_int = 0;
 433         if( p_playlist->p_input )
 434             var_Get( p_playlist->p_input, "state", &val );
 435
 436         if( val.i_int == PAUSE_S )
 437         {
 438             p_playlist->status.i_status = PLAYLIST_RUNNING;
 439             if( p_playlist->p_input )
 440             {
 441                 val.i_int = PLAYING_S;
 442                 var_Set( p_playlist->p_input, "state", val );
 443             }
 444         }
 445         else
 446         {
 447             p_playlist->status.i_status = PLAYLIST_PAUSED;
 448             if( p_playlist->p_input )
 449             {
 450                 val.i_int = PAUSE_S;
 451                 var_Set( p_playlist->p_input, "state", val );
 452             }
 453         }
 454         break;
 455
 456     case PLAYLIST_SKIP:
 457         p_playlist->request.i_view = p_playlist->status.i_view;
 458         if( p_playlist->status.i_view > -1 )
 459         {
 460             p_playlist->request.p_node = p_playlist->status.p_node;
 461             p_playlist->request.p_item = p_playlist->status.p_item;
 462         }
 463         else
 464         {
 465             p_playlist->request.p_node = NULL;
 466             p_playlist->request.p_item = NULL;
 467         }
 468         p_playlist->request.i_skip = (int) va_arg( args, int );
 469         p_playlist->request.b_request = VLC_TRUE;
 470         break;
 471
 472     case PLAYLIST_GOTO:
 473         p_playlist->status.i_status = PLAYLIST_RUNNING;
 474         p_playlist->request.p_node = NULL;
 475         p_playlist->request.p_item = NULL;
 476         p_playlist->request.i_view = -1;
 477         p_playlist->request.i_goto = (int) va_arg( args, int );
 478         p_playlist->request.b_request = VLC_TRUE;
 479         break;
 480
 481     default:
 482         msg_Err( p_playlist, "unknown playlist query" );
 483         return VLC_EBADVAR;
 484         break;
 485     }
 486
 487     return VLC_SUCCESS;
 488 }
 489
 490 int playlist_PreparseEnqueue( playlist_t *p_playlist,
 491                               input_item_t *p_item )
 492 {
 493     vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
 494     INSERT_ELEM( p_playlist->p_preparse->pi_waiting,
 495                  p_playlist->p_preparse->i_waiting,
 496                  p_playlist->p_preparse->i_waiting,
 497                  p_item->i_id );
 498     vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
 499     return VLC_SUCCESS;
 500 }
 501
 502 /* Should only be called if playlist and preparser are locked */
 503 void playlist_PreparseEnqueueItemSub( playlist_t *p_playlist,
 504                                      playlist_item_t *p_item )
 505 {
 506     int i;
 507     if( p_item->i_children == -1 )
 508     {
 509         INSERT_ELEM( p_playlist->p_preparse->pi_waiting,
 510                      p_playlist->p_preparse->i_waiting,
 511                      p_playlist->p_preparse->i_waiting,
 512                      (p_item->input.i_id) );
 513     }
 514     else
 515     {
 516         for( i = 0; i < p_item->i_children; i++)
 517         {
 518             playlist_PreparseEnqueueItemSub( p_playlist,
 519                                              p_item->pp_children[i] );
 520         }
 521     }
 522 }
 523
 524 int playlist_PreparseEnqueueItem( playlist_t *p_playlist,
 525                                   playlist_item_t *p_item )
 526 {
 527     vlc_mutex_lock( &p_playlist->object_lock );
 528     vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
 529     playlist_PreparseEnqueueItemSub( p_playlist, p_item );
 530     vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
 531     vlc_mutex_unlock( &p_playlist->object_lock );
 532     return VLC_SUCCESS;
 533 }
 534
 535
 536 /* Destroy remaining objects */
 537 static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
 538                                        mtime_t destroy_date )
 539 {
 540     vlc_object_t *p_obj;
 541
 542     if( destroy_date > mdate() ) return destroy_date;
 543
 544     if( destroy_date == 0 )
 545     {
 546         /* give a little time */
 547         return mdate() + I64C(1000000);
 548     }
 549     else
 550     {
 551         vlc_mutex_lock( &p_playlist->gc_lock );
 552         while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
 553         {
 554             if( p_obj->p_parent != (vlc_object_t*)p_playlist )
 555             {
 556                 /* only first child (ie unused) */
 557                 vlc_object_release( p_obj );
 558                 break;
 559             }
 560             if( i_type == VLC_OBJECT_VOUT )
 561             {
 562                 msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
 563                 vlc_object_detach( p_obj );
 564                 vlc_object_release( p_obj );
 565                 vout_Destroy( (vout_thread_t *)p_obj );
 566             }
 567             else if( i_type == VLC_OBJECT_SOUT )
 568             {
 569                 vlc_object_release( p_obj );
 570                 sout_DeleteInstance( (sout_instance_t*)p_obj );
 571             }
 572         }
 573         vlc_mutex_unlock( &p_playlist->gc_lock );
 574         return 0;
 575     }
 576 }
 577
 578 /*****************************************************************************
 579  * RunThread: main playlist thread
 580  *****************************************************************************/
 581 static void RunThread ( playlist_t *p_playlist )
 582 {
 583     vlc_object_t *p_obj;
 584     playlist_item_t *p_item = NULL;
 585
 586     mtime_t    i_vout_destroyed_date = 0;
 587     mtime_t    i_sout_destroyed_date = 0;
 588
 589     int i_loops = 0;
 590
 591     playlist_item_t *p_autodelete_item = NULL;
 592
 593     /* Tell above that we're ready */
 594     vlc_thread_ready( p_playlist );
 595
 596     while( !p_playlist->b_die )
 597     {
 598         i_loops++;
 599         if( p_playlist->p_interaction )
 600         {
 601             stats_TimerStart( p_playlist, "Interaction thread" );
 602             intf_InteractionManage( p_playlist );
 603             stats_TimerStop( p_playlist, "Interaction thread" );
 604         }
 605
 606         if( i_loops %5 == 0 && p_playlist->p_stats )
 607         {
 608             stats_ComputeGlobalStats( p_playlist, p_playlist->p_stats );
 609         }
 610
 611         vlc_mutex_lock( &p_playlist->object_lock );
 612
 613         /* First, check if we have something to do */
 614         /* FIXME : this can be called several times */
 615         if( p_playlist->request.b_request )
 616         {
 617 #ifdef PLAYLIST_PROFILE
 618             msg_Dbg(p_playlist, "beginning processing of request, "
 619                          I64Fi" us ", mdate() - p_playlist->request_date );
 620 #endif
 621             /* Stop the existing input */
 622             if( p_playlist->p_input )
 623             {
 624                 input_StopThread( p_playlist->p_input );
 625             }
 626             /* The code below will start the next input for us */
 627             if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 628             {
 629                 p_playlist->request.b_request = VLC_FALSE;
 630             }
 631         }
 632
 633         /* If there is an input, check that it doesn't need to die. */
 634         if( p_playlist->p_input )
 635         {
 636             if( i_loops % 5 == 0 )
 637             {
 638                 stats_ComputeInputStats( p_playlist->p_input,
 639                                   p_playlist->p_input->input.p_item->p_stats );
 640 //                stats_DumpInputStats(
 641 //                            p_playlist->p_input->input.p_item->p_stats );
 642             }
 643
 644             /* This input is dead. Remove it ! */
 645             if( p_playlist->p_input->b_dead )
 646             {
 647                 input_thread_t *p_input;
 648
 649                 p_input = p_playlist->p_input;
 650                 p_playlist->p_input = NULL;
 651
 652                 /* Release the playlist lock, because we may get stuck
 653                  * in input_DestroyThread() for some time. */
 654                 vlc_mutex_unlock( &p_playlist->object_lock );
 655
 656                 /* Destroy input */
 657                 input_DestroyThread( p_input );
 658
 659                 /* Unlink current input
 660                  * (_after_ input_DestroyThread for vout garbage collector) */
 661                 vlc_object_detach( p_input );
 662
 663                 /* Destroy object */
 664                 vlc_object_destroy( p_input );
 665
 666                 i_vout_destroyed_date = 0;
 667                 i_sout_destroyed_date = 0;
 668
 669                 if( p_playlist->status.p_item->i_flags
 670                     & PLAYLIST_REMOVE_FLAG )
 671                 {
 672                      playlist_ItemDelete( p_item );
 673                      p_playlist->status.p_item = NULL;
 674                 }
 675
 676                 continue;
 677             }
 678             /* This input is dying, let it do */
 679             else if( p_playlist->p_input->b_die )
 680             {
 681                 ;
 682             }
 683             /* This input has finished, ask it to die ! */
 684             else if( p_playlist->p_input->b_error
 685                       || p_playlist->p_input->b_eof )
 686             {
 687                 /* TODO FIXME XXX TODO FIXME XXX */
 688                 /* Check for autodeletion */
 689
 690                 if( p_playlist->status.p_item->i_flags & PLAYLIST_DEL_FLAG )
 691                 {
 692                     p_autodelete_item = p_playlist->status.p_item;
 693                 }
 694                 input_StopThread( p_playlist->p_input );
 695                 /* Select the next playlist item */
 696                 vlc_mutex_unlock( &p_playlist->object_lock );
 697                 continue;
 698             }
 699             else if( p_playlist->p_input->i_state != INIT_S )
 700             {
 701                 vlc_mutex_unlock( &p_playlist->object_lock );
 702                 i_vout_destroyed_date =
 703                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
 704                                             i_vout_destroyed_date );
 705                 i_sout_destroyed_date =
 706                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
 707                                             i_sout_destroyed_date );
 708                 vlc_mutex_lock( &p_playlist->object_lock );
 709             }
 710         }
 711         else if( p_playlist->status.i_status != PLAYLIST_STOPPED )
 712         {
 713             /* Start another input.
 714              * Get the next item to play */
 715             stats_TimerStart( p_playlist, "Playlist walk" );
 716             p_item = NextItem( p_playlist );
 717             stats_TimerStop( p_playlist, "Playlist walk" );
 718
 719             /* We must stop */
 720             if( p_item == NULL )
 721             {
 722                 if( p_autodelete_item )
 723                 {
 724                     playlist_Delete( p_playlist,
 725                                      p_autodelete_item->input.i_id );
 726                     p_autodelete_item = NULL;
 727                 }
 728                 p_playlist->status.i_status = PLAYLIST_STOPPED;
 729                 vlc_mutex_unlock( &p_playlist->object_lock );
 730                 continue;
 731             }
 732
 733             PlayItem( p_playlist, p_item );
 734
 735             if( p_autodelete_item )
 736             {
 737                 playlist_Delete( p_playlist, p_autodelete_item->input.i_id );
 738                 p_autodelete_item = NULL;
 739             }
 740         }
 741         else if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 742         {
 743             if( p_item && p_playlist->status.p_item &&
 744                 p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
 745             {
 746                  playlist_ItemDelete( p_item );
 747                  p_playlist->status.p_item = NULL;
 748             }
 749
 750             /* Collect garbage */
 751             vlc_mutex_unlock( &p_playlist->object_lock );
 752             i_sout_destroyed_date =
 753                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
 754             i_vout_destroyed_date =
 755                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
 756             vlc_mutex_lock( &p_playlist->object_lock );
 757         }
 758         vlc_mutex_unlock( &p_playlist->object_lock );
 759
 760         msleep( INTF_IDLE_SLEEP / 2 );
 761
 762         /* Stop sleeping earlier if we have work */
 763         /* TODO : statistics about this */
 764         if ( p_playlist->request.b_request &&
 765                         p_playlist->status.i_status == PLAYLIST_RUNNING )
 766         {
 767             continue;
 768         }
 769
 770         msleep( INTF_IDLE_SLEEP / 2 );
 771     }
 772
 773     /* Playlist dying */
 774
 775     /* If there is an input, kill it */
 776     while( 1 )
 777     {
 778         vlc_mutex_lock( &p_playlist->object_lock );
 779
 780         if( p_playlist->p_input == NULL )
 781         {
 782             vlc_mutex_unlock( &p_playlist->object_lock );
 783             break;
 784         }
 785
 786         if( p_playlist->p_input->b_dead )
 787         {
 788             input_thread_t *p_input;
 789
 790             /* Unlink current input */
 791             p_input = p_playlist->p_input;
 792             p_playlist->p_input = NULL;
 793             vlc_mutex_unlock( &p_playlist->object_lock );
 794
 795             /* Destroy input */
 796             input_DestroyThread( p_input );
 797             /* Unlink current input (_after_ input_DestroyThread for vout
 798              * garbage collector)*/
 799             vlc_object_detach( p_input );
 800
 801             /* Destroy object */
 802             vlc_object_destroy( p_input );
 803             continue;
 804         }
 805         else if( p_playlist->p_input->b_die )
 806         {
 807             /* This input is dying, leave it alone */
 808             ;
 809         }
 810         else if( p_playlist->p_input->b_error || p_playlist->p_input->b_eof )
 811         {
 812             input_StopThread( p_playlist->p_input );
 813             vlc_mutex_unlock( &p_playlist->object_lock );
 814             continue;
 815         }
 816         else
 817         {
 818             p_playlist->p_input->b_eof = 1;
 819         }
 820
 821         vlc_mutex_unlock( &p_playlist->object_lock );
 822
 823         msleep( INTF_IDLE_SLEEP );
 824     }
 825
 826     /* close all remaining sout */
 827     while( ( p_obj = vlc_object_find( p_playlist,
 828                                       VLC_OBJECT_SOUT, FIND_CHILD ) ) )
 829     {
 830         vlc_object_release( p_obj );
 831         sout_DeleteInstance( (sout_instance_t*)p_obj );
 832     }
 833
 834     /* close all remaining vout */
 835     while( ( p_obj = vlc_object_find( p_playlist,
 836                                       VLC_OBJECT_VOUT, FIND_CHILD ) ) )
 837     {
 838         vlc_object_detach( p_obj );
 839         vlc_object_release( p_obj );
 840         vout_Destroy( (vout_thread_t *)p_obj );
 841     }
 842 }
 843
 844 /* Queue for items to preparse */
 845 static void RunPreparse ( playlist_preparse_t *p_obj )
 846 {
 847     playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
 848     vlc_bool_t b_sleep;
 849
 850     /* Tell above that we're ready */
 851     vlc_thread_ready( p_obj );
 852
 853     while( !p_playlist->b_die )
 854     {
 855         vlc_mutex_lock( &p_obj->object_lock );
 856
 857         if( p_obj->i_waiting > 0 )
 858         {
 859             int i_current_id = p_obj->pi_waiting[0];
 860             playlist_item_t *p_current;
 861             REMOVE_ELEM( p_obj->pi_waiting, p_obj->i_waiting, 0 );
 862             vlc_mutex_unlock( &p_obj->object_lock );
 863             vlc_mutex_lock( &p_playlist->object_lock );
 864
 865             p_current = playlist_ItemGetById( p_playlist, i_current_id );
 866             if( p_current )
 867             {
 868                 vlc_bool_t b_preparsed = VLC_FALSE;
 869                 if( strncmp( p_current->input.psz_uri, "http:", 5 ) &&
 870                     strncmp( p_current->input.psz_uri, "rtsp:", 5 ) &&
 871                     strncmp( p_current->input.psz_uri, "udp:", 4 ) &&
 872                     strncmp( p_current->input.psz_uri, "mms:", 4 ) &&
 873                     strncmp( p_current->input.psz_uri, "cdda:", 4 ) &&
 874                     strncmp( p_current->input.psz_uri, "dvd:", 4 ) &&
 875                     strncmp( p_current->input.psz_uri, "v4l:", 4 ) &&
 876                     strncmp( p_current->input.psz_uri, "dshow:", 6 ) )
 877                 {
 878                     b_preparsed = VLC_TRUE;
 879                     stats_TimerStart( p_playlist, "Preparse run" );
 880                     input_Preparse( p_playlist, &p_current->input );
 881                     stats_TimerStop( p_playlist, "Preparse run" );
 882                 }
 883                 vlc_mutex_unlock( &p_playlist->object_lock );
 884                 if( b_preparsed )
 885                 {
 886                     var_SetInteger( p_playlist, "item-change",
 887                                     p_current->input.i_id );
 888                 }
 889             }
 890             else
 891                 vlc_mutex_unlock( &p_playlist->object_lock );
 892             vlc_mutex_lock( &p_obj->object_lock );
 893         }
 894         b_sleep = ( p_obj->i_waiting == 0 );
 895
 896         vlc_mutex_unlock( &p_obj->object_lock );
 897
 898         if( p_obj->i_waiting == 0 )
 899         {
 900             msleep( INTF_IDLE_SLEEP );
 901         }
 902     }
 903 }
 904
 905 /*****************************************************************************
 906  * NextItem
 907  *****************************************************************************
 908  * This function calculates the next playlist item, depending
 909  * on the playlist course mode (forward, backward, random, view,...).
 910  *****************************************************************************/
 911 static playlist_item_t * NextItem( playlist_t *p_playlist )
 912 {
 913     playlist_item_t *p_new = NULL;
 914     int i_skip,i_goto,i, i_new, i_count ;
 915     playlist_view_t *p_view;
 916
 917     vlc_bool_t b_loop = var_GetBool( p_playlist, "loop" );
 918     vlc_bool_t b_random = var_GetBool( p_playlist, "random" );
 919     vlc_bool_t b_repeat = var_GetBool( p_playlist, "repeat" );
 920     vlc_bool_t b_playstop = var_GetBool( p_playlist, "play-and-stop" );
 921
 922 #ifdef PLAYLIST_PROFILE
 923     /* Calculate time needed */
 924     int64_t start = mdate();
 925 #endif
 926     /* Handle quickly a few special cases */
 927
 928     /* No items to play */
 929     if( p_playlist->i_size == 0 )
 930     {
 931         msg_Info( p_playlist, "playlist is empty" );
 932         return NULL;
 933     }
 934     /* Nothing requested */
 935     if( !p_playlist->request.b_request && p_playlist->status.p_item == NULL )
 936     {
 937         msg_Dbg( p_playlist,"nothing requested, starting" );
 938     }
 939
 940     /* Repeat and play/stop */
 941     if( !p_playlist->request.b_request && b_repeat == VLC_TRUE &&
 942          p_playlist->status.p_item )
 943     {
 944         msg_Dbg( p_playlist,"repeating item" );
 945         return p_playlist->status.p_item;
 946     }
 947
 948     if( !p_playlist->request.b_request && b_playstop == VLC_TRUE )
 949     {
 950         msg_Dbg( p_playlist,"stopping (play and stop)");
 951         return NULL;
 952     }
 953
 954     if( !p_playlist->request.b_request && p_playlist->status.p_item &&
 955         !( p_playlist->status.p_item->i_flags & PLAYLIST_SKIP_FLAG ) )
 956     {
 957         msg_Dbg( p_playlist, "no-skip mode, stopping") ;
 958         return NULL;
 959     }
 960
 961     /* TODO: improve this (only use current node) */
 962     /* TODO: use the "shuffled view" internally ? */
 963     /* Random case. This is an exception: if request, but request is skip +- 1
 964      * we don't go to next item but select a new random one. */
 965     if( b_random &&
 966         ( !p_playlist->request.b_request ||
 967         ( p_playlist->request.b_request && ( p_playlist->request.p_item == NULL ||
 968           p_playlist->request.i_skip == 1 || p_playlist->request.i_skip == -1 ) ) ) )
 969     {
 970         /* how many items to choose from ? */
 971         i_count = 0;
 972         for ( i = 0; i < p_playlist->i_size; i++ )
 973         {
 974             if ( p_playlist->pp_items[i]->i_nb_played == 0 )
 975                 i_count++;
 976         }
 977         /* Nothing left? */
 978         if ( i_count == 0 )
 979         {
 980             /* Don't loop? Exit! */
 981             if( !b_loop )
 982                 return NULL;
 983             /* Otherwise reset the counter */
 984             for ( i = 0; i < p_playlist->i_size; i++ )
 985             {
 986                 p_playlist->pp_items[i]->i_nb_played = 0;
 987             }
 988             i_count = p_playlist->i_size;
 989         }
 990         srand( (unsigned int)mdate() );
 991         i = rand() % i_count + 1 ;
 992         /* loop thru the list and count down the unplayed items to the selected one */
 993         for ( i_new = 0; i_new < p_playlist->i_size && i > 0; i_new++ )
 994         {
 995             if ( p_playlist->pp_items[i_new]->i_nb_played == 0 )
 996                 i--;
 997         }
 998         i_new--;
 999
1000         p_playlist->request.i_skip = 0;
1001         p_playlist->request.b_request = VLC_FALSE;
1002         return p_playlist->pp_items[i_new];
1003     }
1004
1005     /* Start the real work */
1006     if( p_playlist->request.b_request )
1007     {
1008 #ifdef PLAYLIST_DEBUG
1009         msg_Dbg( p_playlist,"processing request" );
1010 #endif
1011         /* We are not playing from a view */
1012         if( p_playlist->request.i_view == -1  )
1013         {
1014 #ifdef PLAYLIST_DEBUG
1015             msg_Dbg( p_playlist, "non-view mode request");
1016 #endif
1017             /* Directly select the item, just like now */
1018             p_new = p_playlist->request.p_item;
1019             i_skip = p_playlist->request.i_skip;
1020             i_goto = p_playlist->request.i_goto;
1021
1022             if( p_playlist->i_index < 0 ) p_playlist->i_index = 0;
1023             if ( p_new == NULL )
1024                 p_new = p_playlist->pp_items[p_playlist->i_index];
1025
1026             if( i_goto >= 0  && i_goto < p_playlist->i_size )
1027             {
1028                 p_playlist->i_index = i_goto;
1029                 p_new = p_playlist->pp_items[p_playlist->i_index];
1030                 p_playlist->request.i_goto = -1;
1031             }
1032
1033             if( i_skip != 0 )
1034             {
1035                 if( p_playlist->i_index + i_skip < p_playlist->i_size &&
1036                     p_playlist->i_index + i_skip >=  0 )
1037                 {
1038                     p_playlist->i_index += i_skip;
1039                     p_new = p_playlist->pp_items[p_playlist->i_index];
1040                 }
1041                 p_playlist->request.i_skip = 0;
1042             }
1043             if( !( p_new->i_flags & PLAYLIST_SKIP_FLAG ) )
1044             {
1045                 return NULL;
1046             }
1047         }
1048         else
1049         {
1050 #ifdef PLAYLIST_DEBUG
1051             msg_Dbg( p_playlist, "view mode request" );
1052 #endif
1053             p_new = p_playlist->request.p_item;
1054             i_skip = p_playlist->request.i_skip;
1055
1056             /* If we are asked for a node, take its first item */
1057             if( p_playlist->request.p_item == NULL && i_skip == 0 )
1058             {
1059                 i_skip++;
1060             }
1061
1062             p_view = playlist_ViewFind( p_playlist,p_playlist->request.i_view );
1063             p_playlist->status.p_node = p_playlist->request.p_node;
1064             p_playlist->status.i_view = p_playlist->request.i_view;
1065             if( !p_view )
1066             {
1067                 msg_Err( p_playlist, "p_view is NULL and should not! (requested view is %i", p_playlist->request.i_view );
1068             }
1069             else if( i_skip > 0 )
1070             {
1071                 for( i = i_skip; i > 0 ; i-- )
1072                 {
1073                     p_new = playlist_FindNextFromParent( p_playlist,
1074                                     p_playlist->request.i_view,
1075                                     p_view->p_root,
1076                                     p_playlist->request.p_node,
1077                                     p_new );
1078                     if( p_new == NULL )
1079                     {
1080 #ifdef PLAYLIST_DEBUG
1081                         msg_Dbg( p_playlist, "looping" );
1082 #endif
1083                         p_new = playlist_FindNextFromParent( p_playlist,
1084                                   p_playlist->request.i_view,
1085                                   p_view->p_root,
1086                                   p_view->p_root,
1087                                   NULL );
1088                         if( p_new == NULL ) break;
1089                     }
1090                 }
1091             }
1092             else if( i_skip < 0 )
1093             {
1094                 for( i = i_skip; i < 0 ; i++ )
1095                 {
1096                     p_new = playlist_FindPrevFromParent( p_playlist,
1097                                     p_playlist->request.i_view,
1098                                     p_view->p_root,
1099                                     p_playlist->request.p_node,
1100                                     p_new );
1101                     if( p_new == NULL )
1102                     {
1103                     /* We reach the beginning of the playlist.
1104                        Go back to the last item. */
1105                         p_new = playlist_RecursiveFindLast( p_playlist,
1106                                                             p_view->p_root );
1107                     }
1108                     if( p_new == NULL ) break;
1109                 }
1110
1111             }
1112         }
1113         /* Clear the request */
1114         p_playlist->request.b_request = VLC_FALSE;
1115     }
1116     /* "Automatic" item change ( next ) */
1117     else
1118     {
1119         p_playlist->request_date = 0;
1120
1121         if( p_playlist->status.i_view == -1 )
1122         {
1123 #ifdef PLAYLIST_DEBUG
1124         msg_Dbg( p_playlist, "no request - old mode" );
1125 #endif
1126             if( p_playlist->i_index + 1 < p_playlist->i_size )
1127             {
1128                 p_playlist->i_index++;
1129                 p_new = p_playlist->pp_items[p_playlist->i_index];
1130                 if( !( p_new->i_flags & PLAYLIST_SKIP_FLAG ) )
1131                 {
1132                     return NULL;
1133                 }
1134             }
1135             else
1136             {
1137                 if( b_loop && p_playlist->i_size > 0)
1138                 {
1139                     p_playlist->i_index = 0;
1140                     p_new = p_playlist->pp_items[0];
1141                 }
1142                 else
1143                     p_new = NULL;
1144             }
1145         }
1146         /* We are playing with a view */
1147         else
1148         {
1149 #ifdef PLAYLIST_DEBUG
1150             msg_Dbg( p_playlist,"no request - from a view" );
1151 #endif
1152             playlist_view_t *p_view =
1153                     playlist_ViewFind( p_playlist,
1154                                    p_playlist->status.i_view );
1155             if( !p_view )
1156             {
1157                 msg_Err( p_playlist, "p_view is NULL and should not! (FIXME)" );
1158             }
1159             else
1160             {
1161                 p_new = playlist_FindNextFromParent( p_playlist,
1162                             p_playlist->status.i_view,
1163                             p_view->p_root,
1164                             p_playlist->status.p_node,
1165                             p_playlist->status.p_item );
1166                 if( p_new == NULL && b_loop )
1167                 {
1168 #ifdef PLAYLIST_DEBUG
1169                     msg_Dbg( p_playlist, "looping" );
1170 #endif
1171                     p_new = playlist_FindNextFromParent( p_playlist,
1172                                    p_playlist->status.i_view,
1173                                    p_view->p_root,
1174                                    p_view->p_root,
1175                                    NULL );
1176                 }
1177                 if( p_new != NULL && !(p_new->i_flags & PLAYLIST_SKIP_FLAG) )
1178                     return NULL;
1179             }
1180         }
1181     }
1182
1183     /* Reset index */
1184     if( p_playlist->i_index >= 0 && p_new != NULL &&
1185             p_playlist->pp_items[p_playlist->i_index] != p_new )
1186     {
1187         p_playlist->i_index = playlist_GetPositionById( p_playlist,
1188                                                         p_new->input.i_id );
1189     }
1190
1191 #ifdef PLAYLIST_PROFILE
1192     msg_Dbg(p_playlist,"next item found in "I64Fi " us", mdate()-start );
1193 #endif
1194
1195     if( p_new == NULL )
1196     {
1197         msg_Info( p_playlist, "nothing to play" );
1198     }
1199
1200     return p_new;
1201 }
1202
1203 /*****************************************************************************
1204  * PlayItem: start the input thread for an item
1205  ****************************************************************************/
1206 static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
1207 {
1208     vlc_value_t val;
1209
1210     msg_Dbg( p_playlist, "creating new input thread" );
1211
1212     p_item->i_nb_played++;
1213     p_playlist->status.p_item = p_item;
1214
1215     p_playlist->i_index = playlist_GetPositionById( p_playlist,
1216                                                     p_item->input.i_id );
1217
1218 #ifdef PLAYLIST_PROFILE
1219     if( p_playlist->request_date != 0 )
1220     {
1221         msg_Dbg( p_playlist, "request processed after "I64Fi " us",
1222                   mdate() - p_playlist->request_date );
1223     }
1224 #endif
1225
1226     p_playlist->p_input = input_CreateThread( p_playlist, &p_item->input );
1227
1228     val.i_int = p_item->input.i_id;
1229     /* unlock the playlist to set the var...mmm */
1230     vlc_mutex_unlock( &p_playlist->object_lock);
1231     var_Set( p_playlist, "playlist-current", val);
1232     vlc_mutex_lock( &p_playlist->object_lock);
1233
1234     return VLC_SUCCESS;
1235
1236 }