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

   1 /*****************************************************************************
   2  * playlist.c : Playlist management functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 VideoLAN (Centrale Réseaux) and its contributors
   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., 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() */
  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 #define TITLE_CATEGORY N_( "By category" )
  36 #define TITLE_SIMPLE   N_( "Manually added" )
  37 #define TITLE_ALL      N_( "All items, unsorted" )
  38
  39 #undef PLAYLIST_PROFILE
  40 #undef PLAYLIST_DEBUG
  41
  42 /*****************************************************************************
  43  * Local prototypes
  44  *****************************************************************************/
  45 static void RunThread ( playlist_t * );
  46 static void RunPreparse( playlist_preparse_t * );
  47 static playlist_item_t * NextItem  ( playlist_t * );
  48 static int PlayItem  ( playlist_t *, playlist_item_t * );
  49
  50 static int ItemChange( vlc_object_t *, const char *,
  51                        vlc_value_t, vlc_value_t, void * );
  52
  53 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args );
  54
  55
  56 /**
  57  * Create playlist
  58  *
  59  * Create a playlist structure.
  60  * \param p_parent the vlc object that is to be the parent of this playlist
  61  * \return a pointer to the created playlist, or NULL on error
  62  */
  63 playlist_t * __playlist_Create ( vlc_object_t *p_parent )
  64 {
  65     playlist_t *p_playlist;
  66     playlist_view_t *p_view;
  67     vlc_value_t     val;
  68
  69     /* Allocate structure */
  70     p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
  71     if( !p_playlist )
  72     {
  73         msg_Err( p_parent, "out of memory" );
  74         return NULL;
  75     }
  76
  77     /* These variables control updates */
  78     var_Create( p_playlist, "intf-change", VLC_VAR_BOOL );
  79     val.b_bool = VLC_TRUE;
  80     var_Set( p_playlist, "intf-change", val );
  81
  82     var_Create( p_playlist, "item-change", VLC_VAR_INTEGER );
  83     val.i_int = -1;
  84     var_Set( p_playlist, "item-change", val );
  85
  86     var_Create( p_playlist, "item-deleted", VLC_VAR_INTEGER );
  87     val.i_int = -1;
  88     var_Set( p_playlist, "item-deleted", val );
  89
  90     var_Create( p_playlist, "item-append", VLC_VAR_ADDRESS );
  91
  92     var_Create( p_playlist, "playlist-current", VLC_VAR_INTEGER );
  93     val.i_int = -1;
  94     var_Set( p_playlist, "playlist-current", val );
  95
  96     var_Create( p_playlist, "intf-popupmenu", VLC_VAR_BOOL );
  97
  98     var_Create( p_playlist, "intf-show", VLC_VAR_BOOL );
  99     val.b_bool = VLC_TRUE;
 100     var_Set( p_playlist, "intf-show", val );
 101
 102
 103     /* Variables to control playback */
 104     var_CreateGetBool( p_playlist, "play-and-stop" );
 105     var_CreateGetBool( p_playlist, "random" );
 106     var_CreateGetBool( p_playlist, "repeat" );
 107     var_CreateGetBool( p_playlist, "loop" );
 108
 109     /* Initialise data structures */
 110     vlc_mutex_init( p_playlist, &p_playlist->gc_lock );
 111     p_playlist->i_last_id = 0;
 112     p_playlist->b_go_next = VLC_TRUE;
 113     p_playlist->p_input = NULL;
 114
 115     p_playlist->request_date = 0;
 116
 117     p_playlist->i_views = 0;
 118     p_playlist->pp_views = NULL;
 119
 120     p_playlist->i_index = -1;
 121     p_playlist->i_size = 0;
 122     p_playlist->pp_items = NULL;
 123     p_playlist->i_all_size = 0;
 124     p_playlist->pp_all_items = 0;
 125
 126     playlist_ViewInsert( p_playlist, VIEW_CATEGORY, TITLE_CATEGORY );
 127     playlist_ViewInsert( p_playlist, VIEW_ALL, TITLE_ALL );
 128
 129     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 130
 131     p_playlist->p_general =
 132         playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 133                              _( "General" ), p_view->p_root );
 134     p_playlist->p_general->i_flags |= PLAYLIST_RO_FLAG;
 135
 136     /* Set startup status
 137      * We set to simple view on startup for interfaces that don't do
 138      * anything */
 139     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 140     p_playlist->status.i_view = VIEW_CATEGORY;
 141     p_playlist->status.p_item = NULL;
 142     p_playlist->status.p_node = p_view->p_root;
 143     p_playlist->request.b_request = VLC_FALSE;
 144     p_playlist->status.i_status = PLAYLIST_STOPPED;
 145
 146
 147     p_playlist->i_sort = SORT_ID;
 148     p_playlist->i_order = ORDER_NORMAL;
 149
 150     /* Finally, launch the thread ! */
 151     if( vlc_thread_create( p_playlist, "playlist", RunThread,
 152                            VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 153     {
 154         msg_Err( p_playlist, "cannot spawn playlist thread" );
 155         vlc_object_destroy( p_playlist );
 156         return NULL;
 157     }
 158
 159     /* Preparsing stuff */
 160     p_playlist->p_preparse = vlc_object_create( p_playlist,
 161                                                 sizeof( playlist_preparse_t ) );
 162     if( !p_playlist->p_preparse )
 163     {
 164         msg_Err( p_playlist, "unable to create preparser" );
 165         vlc_object_destroy( p_playlist );
 166         return NULL;
 167     }
 168
 169     p_playlist->p_preparse->i_waiting = 0;
 170     p_playlist->p_preparse->pp_waiting = NULL;
 171
 172     vlc_object_attach( p_playlist->p_preparse, p_playlist );
 173     if( vlc_thread_create( p_playlist->p_preparse, "preparser",
 174                            RunPreparse, VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 175     {
 176         msg_Err( p_playlist, "cannot spawn preparse thread" );
 177         vlc_object_detach( p_playlist->p_preparse );
 178         vlc_object_destroy( p_playlist->p_preparse );
 179         return NULL;
 180     }
 181
 182     /* The object has been initialized, now attach it */
 183     vlc_object_attach( p_playlist, p_parent );
 184
 185     return p_playlist;
 186 }
 187
 188 /**
 189  * Destroy the playlist.
 190  *
 191  * Delete all items in the playlist and free the playlist structure.
 192  * \param p_playlist the playlist structure to destroy
 193  * \return VLC_SUCCESS or an error
 194  */
 195 int playlist_Destroy( playlist_t * p_playlist )
 196 {
 197     int i;
 198     p_playlist->b_die = 1;
 199
 200     while( p_playlist->i_sds )
 201     {
 202         playlist_ServicesDiscoveryRemove( p_playlist,
 203                                           p_playlist->pp_sds[0]->psz_module );
 204     }
 205
 206     vlc_thread_join( p_playlist->p_preparse );
 207     vlc_thread_join( p_playlist );
 208
 209     vlc_object_detach( p_playlist->p_preparse );
 210
 211     var_Destroy( p_playlist, "intf-change" );
 212     var_Destroy( p_playlist, "item-change" );
 213     var_Destroy( p_playlist, "playlist-current" );
 214     var_Destroy( p_playlist, "intf-popmenu" );
 215     var_Destroy( p_playlist, "intf-show" );
 216     var_Destroy( p_playlist, "play-and-stop" );
 217     var_Destroy( p_playlist, "random" );
 218     var_Destroy( p_playlist, "repeat" );
 219     var_Destroy( p_playlist, "loop" );
 220
 221     playlist_Clear( p_playlist );
 222
 223     for( i = p_playlist->i_views - 1; i >= 0 ; i-- )
 224     {
 225         playlist_view_t *p_view = p_playlist->pp_views[i];
 226         if( p_view->psz_name )
 227             free( p_view->psz_name );
 228         playlist_ItemDelete( p_view->p_root );
 229         REMOVE_ELEM( p_playlist->pp_views, p_playlist->i_views, i );
 230         free( p_view );
 231     }
 232
 233     vlc_mutex_destroy( &p_playlist->gc_lock );
 234     vlc_object_destroy( p_playlist->p_preparse );
 235     vlc_object_destroy( p_playlist );
 236
 237     return VLC_SUCCESS;
 238 }
 239
 240
 241 /**
 242  * Do a playlist action.
 243  *
 244  * If there is something in the playlist then you can do playlist actions.
 245  *
 246  * Playlist lock must not be taken when calling this function
 247  *
 248  * \param p_playlist the playlist to do the command on
 249  * \param i_query the command to do
 250  * \param variable number of arguments
 251  * \return VLC_SUCCESS or an error
 252  */
 253 int playlist_LockControl( playlist_t * p_playlist, int i_query, ... )
 254 {
 255     va_list args;
 256     int i_result;
 257     va_start( args, i_query );
 258     vlc_mutex_lock( &p_playlist->object_lock );
 259     i_result = playlist_vaControl( p_playlist, i_query, args );
 260     va_end( args );
 261     vlc_mutex_unlock( &p_playlist->object_lock );
 262     return i_result;
 263 }
 264
 265 /**
 266  * Do a playlist action.
 267  *
 268  * If there is something in the playlist then you can do playlist actions.
 269  *
 270  * Playlist lock must be taken when calling this function
 271  *
 272  * \param p_playlist the playlist to do the command on
 273  * \param i_query the command to do
 274  * \param variable number of arguments
 275  * \return VLC_SUCCESS or an error
 276  */
 277 int playlist_Control( playlist_t * p_playlist, int i_query, ... )
 278 {
 279     va_list args;
 280     int i_result;
 281     va_start( args, i_query );
 282     i_result = playlist_vaControl( p_playlist, i_query, args );
 283     va_end( args );
 284
 285     return i_result;
 286 }
 287
 288 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args )
 289 {
 290     playlist_view_t *p_view;
 291     playlist_item_t *p_item, *p_node;
 292     int i_view;
 293     vlc_value_t val;
 294
 295 #ifdef PLAYLIST_PROFILE
 296     p_playlist->request_date = mdate();
 297 #endif
 298
 299     if( p_playlist->i_size <= 0 )
 300     {
 301         return VLC_EGENERIC;
 302     }
 303
 304     switch( i_query )
 305     {
 306     case PLAYLIST_STOP:
 307         p_playlist->status.i_status = PLAYLIST_STOPPED;
 308         p_playlist->request.b_request = VLC_TRUE;
 309         break;
 310
 311     case PLAYLIST_ITEMPLAY:
 312         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 313         if ( p_item == NULL || p_item->input.psz_uri == NULL )
 314             return VLC_EGENERIC;
 315         p_playlist->status.i_status = PLAYLIST_RUNNING;
 316         p_playlist->request.i_skip = 0;
 317         p_playlist->request.b_request = VLC_TRUE;
 318         p_playlist->request.p_item = p_item;
 319         p_playlist->request.i_view = p_playlist->status.i_view;
 320         p_view = playlist_ViewFind( p_playlist, p_playlist->status.i_view );
 321         if( p_view )
 322         {
 323             p_playlist->request.p_node = p_view->p_root;
 324         }
 325         else
 326         {
 327             p_playlist->request.p_node = NULL;
 328         }
 329         break;
 330
 331     case PLAYLIST_VIEWPLAY:
 332         i_view = (int)va_arg( args,int );
 333         p_node = (playlist_item_t *)va_arg( args, playlist_item_t * );
 334         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 335         if ( p_node == NULL || (p_item != NULL && p_item->input.psz_uri
 336                                                          == NULL ))
 337         {
 338             p_playlist->status.i_status = PLAYLIST_STOPPED;
 339             p_playlist->request.b_request = VLC_TRUE;
 340             return VLC_SUCCESS;
 341         }
 342         p_playlist->status.i_status = PLAYLIST_RUNNING;
 343         p_playlist->request.i_skip = 0;
 344         p_playlist->request.b_request = VLC_TRUE;
 345         p_playlist->request.i_view = i_view;
 346         p_playlist->request.p_node = p_node;
 347         p_playlist->request.p_item = p_item;
 348
 349         /* If we select a node, play only it.
 350          * If we select an item, continue */
 351         if( p_playlist->request.p_item == NULL ||
 352             ! p_playlist->request.p_node->i_flags & PLAYLIST_SKIP_FLAG )
 353         {
 354             p_playlist->b_go_next = VLC_FALSE;
 355         }
 356         else
 357         {
 358             p_playlist->b_go_next = VLC_TRUE;
 359         }
 360         break;
 361
 362     case PLAYLIST_PLAY:
 363         p_playlist->status.i_status = PLAYLIST_RUNNING;
 364
 365         if( p_playlist->p_input )
 366         {
 367             val.i_int = PLAYING_S;
 368             var_Set( p_playlist->p_input, "state", val );
 369             break;
 370         }
 371
 372         /* FIXME : needed ? */
 373         p_playlist->request.b_request = VLC_TRUE;
 374         p_playlist->request.i_view = p_playlist->status.i_view;
 375         p_playlist->request.p_node = p_playlist->status.p_node;
 376         p_playlist->request.p_item = p_playlist->status.p_item;
 377         p_playlist->request.i_skip = 0;
 378         p_playlist->request.i_goto = -1;
 379         break;
 380
 381     case PLAYLIST_AUTOPLAY:
 382         p_playlist->status.i_status = PLAYLIST_RUNNING;
 383
 384         p_playlist->request.b_request = VLC_FALSE;
 385         break;
 386
 387     case PLAYLIST_PAUSE:
 388         val.i_int = 0;
 389         if( p_playlist->p_input )
 390             var_Get( p_playlist->p_input, "state", &val );
 391
 392         if( val.i_int == PAUSE_S )
 393         {
 394             p_playlist->status.i_status = PLAYLIST_RUNNING;
 395             if( p_playlist->p_input )
 396             {
 397                 val.i_int = PLAYING_S;
 398                 var_Set( p_playlist->p_input, "state", val );
 399             }
 400         }
 401         else
 402         {
 403             p_playlist->status.i_status = PLAYLIST_PAUSED;
 404             if( p_playlist->p_input )
 405             {
 406                 val.i_int = PAUSE_S;
 407                 var_Set( p_playlist->p_input, "state", val );
 408             }
 409         }
 410         break;
 411
 412     case PLAYLIST_SKIP:
 413         if( p_playlist->status.i_view > -1 )
 414         {
 415             p_playlist->request.i_view = p_playlist->status.i_view;
 416             p_playlist->request.p_node = p_playlist->status.p_node;
 417             p_playlist->request.p_item = p_playlist->status.p_item;
 418         }
 419         p_playlist->request.i_skip = (int) va_arg( args, int );
 420         p_playlist->request.b_request = VLC_TRUE;
 421         break;
 422
 423     case PLAYLIST_GOTO:
 424         p_playlist->status.i_status = PLAYLIST_RUNNING;
 425         p_playlist->request.p_node = NULL;
 426         p_playlist->request.p_item = NULL;
 427         p_playlist->request.i_view = -1;
 428         p_playlist->request.i_goto = (int) va_arg( args, int );
 429         p_playlist->request.b_request = VLC_TRUE;
 430         break;
 431
 432     default:
 433         msg_Err( p_playlist, "unimplemented playlist query" );
 434         return VLC_EBADVAR;
 435         break;
 436     }
 437
 438     return VLC_SUCCESS;
 439 }
 440
 441 int playlist_PreparseEnqueue( playlist_t *p_playlist,
 442                               input_item_t *p_item )
 443 {
 444     vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
 445     INSERT_ELEM( p_playlist->p_preparse->pp_waiting,
 446                  p_playlist->p_preparse->i_waiting,
 447                  p_playlist->p_preparse->i_waiting,
 448                  p_item );
 449     vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
 450     return VLC_SUCCESS;
 451 }
 452
 453
 454 /* Destroy remaining objects */
 455 static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
 456                                        mtime_t destroy_date )
 457 {
 458     vlc_object_t *p_obj;
 459
 460     if( destroy_date > mdate() ) return destroy_date;
 461
 462     if( destroy_date == 0 )
 463     {
 464         /* give a little time */
 465         return mdate() + I64C(1000000);
 466     }
 467     else
 468     {
 469         vlc_mutex_lock( &p_playlist->gc_lock );
 470         while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
 471         {
 472             if( p_obj->p_parent != (vlc_object_t*)p_playlist )
 473             {
 474                 /* only first child (ie unused) */
 475                 vlc_object_release( p_obj );
 476                 break;
 477             }
 478             if( i_type == VLC_OBJECT_VOUT )
 479             {
 480                 msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
 481                 vlc_object_detach( p_obj );
 482                 vlc_object_release( p_obj );
 483                 vout_Destroy( (vout_thread_t *)p_obj );
 484             }
 485             else if( i_type == VLC_OBJECT_SOUT )
 486             {
 487                 vlc_object_release( p_obj );
 488                 sout_DeleteInstance( (sout_instance_t*)p_obj );
 489             }
 490         }
 491         vlc_mutex_unlock( &p_playlist->gc_lock );
 492         return 0;
 493     }
 494 }
 495
 496 /*****************************************************************************
 497  * RunThread: main playlist thread
 498  *****************************************************************************/
 499 static void RunThread ( playlist_t *p_playlist )
 500 {
 501     vlc_object_t *p_obj;
 502     playlist_item_t *p_item = NULL;
 503
 504     mtime_t    i_vout_destroyed_date = 0;
 505     mtime_t    i_sout_destroyed_date = 0;
 506
 507     playlist_item_t *p_autodelete_item = NULL;
 508
 509     /* Tell above that we're ready */
 510     vlc_thread_ready( p_playlist );
 511
 512     while( !p_playlist->b_die )
 513     {
 514         vlc_mutex_lock( &p_playlist->object_lock );
 515
 516         /* First, check if we have something to do */
 517         /* FIXME : this can be called several times */
 518         if( p_playlist->request.b_request )
 519         {
 520 #ifdef PLAYLIST_PROFILE
 521             msg_Dbg(p_playlist, "beginning processing of request, "
 522                          I64Fi" us ", mdate() - p_playlist->request_date );
 523 #endif
 524             /* Stop the existing input */
 525             if( p_playlist->p_input )
 526             {
 527                 input_StopThread( p_playlist->p_input );
 528             }
 529             /* The code below will start the next input for us */
 530             if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 531             {
 532                 p_playlist->request.b_request = VLC_FALSE;
 533             }
 534         }
 535
 536         /* If there is an input, check that it doesn't need to die. */
 537         if( p_playlist->p_input )
 538         {
 539             /* This input is dead. Remove it ! */
 540             if( p_playlist->p_input->b_dead )
 541             {
 542                 input_thread_t *p_input;
 543
 544                 p_input = p_playlist->p_input;
 545                 p_playlist->p_input = NULL;
 546
 547                 /* Release the playlist lock, because we may get stuck
 548                  * in input_DestroyThread() for some time. */
 549                 vlc_mutex_unlock( &p_playlist->object_lock );
 550
 551                 /* Destroy input */
 552                 input_DestroyThread( p_input );
 553
 554                 /* Unlink current input
 555                  * (_after_ input_DestroyThread for vout garbage collector) */
 556                 vlc_object_detach( p_input );
 557
 558                 /* Destroy object */
 559                 vlc_object_destroy( p_input );
 560
 561                 i_vout_destroyed_date = 0;
 562                 i_sout_destroyed_date = 0;
 563
 564                 if( p_playlist->status.p_item->i_flags
 565                     & PLAYLIST_REMOVE_FLAG )
 566                 {
 567                      playlist_ItemDelete( p_item );
 568                      p_playlist->status.p_item = NULL;
 569                 }
 570
 571                 continue;
 572             }
 573             /* This input is dying, let him do */
 574             else if( p_playlist->p_input->b_die )
 575             {
 576                 ;
 577             }
 578             /* This input has finished, ask him to die ! */
 579             else if( p_playlist->p_input->b_error
 580                       || p_playlist->p_input->b_eof )
 581             {
 582                 /* TODO FIXME XXX TODO FIXME XXX */
 583                 /* Check for autodeletion */
 584
 585                 if( p_playlist->status.p_item->i_flags & PLAYLIST_DEL_FLAG )
 586                 {
 587                     p_autodelete_item = p_playlist->status.p_item;
 588                 }
 589                 input_StopThread( p_playlist->p_input );
 590                 /* Select the next playlist item */
 591                 vlc_mutex_unlock( &p_playlist->object_lock );
 592                 continue;
 593             }
 594             else if( p_playlist->p_input->i_state != INIT_S )
 595             {
 596                 vlc_mutex_unlock( &p_playlist->object_lock );
 597                 i_vout_destroyed_date =
 598                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
 599                                             i_vout_destroyed_date );
 600                 i_sout_destroyed_date =
 601                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
 602                                             i_sout_destroyed_date );
 603                 vlc_mutex_lock( &p_playlist->object_lock );
 604             }
 605         }
 606         else if( p_playlist->status.i_status != PLAYLIST_STOPPED )
 607         {
 608             /* Start another input.
 609              * Get the next item to play */
 610             p_item = NextItem( p_playlist );
 611
 612
 613             /* We must stop */
 614             if( p_item == NULL )
 615             {
 616                 if( p_autodelete_item )
 617                 {
 618                     playlist_Delete( p_playlist,
 619                                      p_autodelete_item->input.i_id );
 620                     p_autodelete_item = NULL;
 621                 }
 622                 p_playlist->status.i_status = PLAYLIST_STOPPED;
 623                 vlc_mutex_unlock( &p_playlist->object_lock );
 624                 continue;
 625             }
 626
 627             PlayItem( p_playlist, p_item );
 628
 629             if( p_autodelete_item )
 630             {
 631                 playlist_Delete( p_playlist, p_autodelete_item->input.i_id );
 632                 p_autodelete_item = NULL;
 633             }
 634         }
 635         else if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 636         {
 637             /* Collect garbage */
 638             vlc_mutex_unlock( &p_playlist->object_lock );
 639             i_sout_destroyed_date =
 640                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
 641             i_vout_destroyed_date =
 642                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
 643             vlc_mutex_lock( &p_playlist->object_lock );
 644         }
 645         vlc_mutex_unlock( &p_playlist->object_lock );
 646
 647         msleep( INTF_IDLE_SLEEP / 2 );
 648
 649         /* Stop sleeping earlier if we have work */
 650         /* TODO : statistics about this */
 651         if ( p_playlist->request.b_request &&
 652                         p_playlist->status.i_status == PLAYLIST_RUNNING )
 653         {
 654             continue;
 655         }
 656
 657         msleep( INTF_IDLE_SLEEP / 2 );
 658     }
 659
 660     /* Playlist dying */
 661
 662     /* If there is an input, kill it */
 663     while( 1 )
 664     {
 665         vlc_mutex_lock( &p_playlist->object_lock );
 666
 667         if( p_playlist->p_input == NULL )
 668         {
 669             vlc_mutex_unlock( &p_playlist->object_lock );
 670             break;
 671         }
 672
 673         if( p_playlist->p_input->b_dead )
 674         {
 675             input_thread_t *p_input;
 676
 677             /* Unlink current input */
 678             p_input = p_playlist->p_input;
 679             p_playlist->p_input = NULL;
 680             vlc_mutex_unlock( &p_playlist->object_lock );
 681
 682             /* Destroy input */
 683             input_DestroyThread( p_input );
 684             /* Unlink current input (_after_ input_DestroyThread for vout
 685              * garbage collector)*/
 686             vlc_object_detach( p_input );
 687
 688             /* Destroy object */
 689             vlc_object_destroy( p_input );
 690             continue;
 691         }
 692         else if( p_playlist->p_input->b_die )
 693         {
 694             /* This input is dying, leave him alone */
 695             ;
 696         }
 697         else if( p_playlist->p_input->b_error || p_playlist->p_input->b_eof )
 698         {
 699             input_StopThread( p_playlist->p_input );
 700             vlc_mutex_unlock( &p_playlist->object_lock );
 701             continue;
 702         }
 703         else
 704         {
 705             p_playlist->p_input->b_eof = 1;
 706         }
 707
 708         vlc_mutex_unlock( &p_playlist->object_lock );
 709
 710         msleep( INTF_IDLE_SLEEP );
 711     }
 712
 713     /* close all remaining sout */
 714     while( ( p_obj = vlc_object_find( p_playlist,
 715                                       VLC_OBJECT_SOUT, FIND_CHILD ) ) )
 716     {
 717         vlc_object_release( p_obj );
 718         sout_DeleteInstance( (sout_instance_t*)p_obj );
 719     }
 720
 721     /* close all remaining vout */
 722     while( ( p_obj = vlc_object_find( p_playlist,
 723                                       VLC_OBJECT_VOUT, FIND_CHILD ) ) )
 724     {
 725         vlc_object_detach( p_obj );
 726         vlc_object_release( p_obj );
 727         vout_Destroy( (vout_thread_t *)p_obj );
 728     }
 729 }
 730
 731 /* Queue for items to preparse */
 732 static void RunPreparse ( playlist_preparse_t *p_obj )
 733 {
 734     playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
 735     vlc_bool_t b_sleep;
 736
 737     /* Tell above that we're ready */
 738     vlc_thread_ready( p_obj );
 739
 740     while( !p_playlist->b_die )
 741     {
 742         vlc_mutex_lock( &p_obj->object_lock );
 743
 744         if( p_obj->i_waiting > 0 )
 745         {
 746             input_item_t *p_current = p_obj->pp_waiting[0];
 747             REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
 748             vlc_mutex_unlock( &p_obj->object_lock );
 749             input_Preparse( p_playlist, p_current );
 750             var_SetInteger( p_playlist, "item-change", p_current->i_id );
 751             vlc_mutex_lock( &p_obj->object_lock );
 752         }
 753         b_sleep = ( p_obj->i_waiting == 0 );
 754
 755         vlc_mutex_unlock( &p_obj->object_lock );
 756
 757         if( p_obj->i_waiting == 0 )
 758         {
 759             msleep( INTF_IDLE_SLEEP );
 760         }
 761     }
 762 }
 763
 764 /*****************************************************************************
 765  * NextItem
 766  *****************************************************************************
 767  * This function calculates the next playlist item, depending
 768  * on the playlist course mode (forward, backward, random, view,...).
 769  *****************************************************************************/
 770 static playlist_item_t * NextItem( playlist_t *p_playlist )
 771 {
 772     playlist_item_t *p_new = NULL;
 773     int i_skip,i_goto,i, i_new, i_count ;
 774     playlist_view_t *p_view;
 775
 776     vlc_bool_t b_loop = var_GetBool( p_playlist, "loop" );
 777     vlc_bool_t b_random = var_GetBool( p_playlist, "random" );
 778     vlc_bool_t b_repeat = var_GetBool( p_playlist, "repeat" );
 779     vlc_bool_t b_playstop = var_GetBool( p_playlist, "play-and-stop" );
 780
 781 #ifdef PLAYLIST_PROFILE
 782     /* Calculate time needed */
 783     int64_t start = mdate();
 784 #endif
 785
 786     /* Handle quickly a few special cases */
 787
 788     /* No items to play */
 789     if( p_playlist->i_size == 0 )
 790     {
 791         msg_Info( p_playlist, "playlist is empty" );
 792         return NULL;
 793     }
 794     /* Nothing requested */
 795     if( !p_playlist->request.b_request && p_playlist->status.p_item == NULL )
 796     {
 797         msg_Dbg( p_playlist,"nothing requested, starting" );
 798     }
 799
 800     /* Repeat and play/stop */
 801     if( !p_playlist->request.b_request && b_repeat == VLC_TRUE )
 802     {
 803         msg_Dbg( p_playlist,"repeating item" );
 804         return p_playlist->status.p_item;
 805     }
 806
 807     if( !p_playlist->request.b_request && b_playstop == VLC_TRUE )
 808     {
 809         msg_Dbg( p_playlist,"stopping (play and stop)");
 810         return NULL;
 811     }
 812
 813     if( !p_playlist->request.b_request && p_playlist->status.p_item &&
 814         !( p_playlist->status.p_item->i_flags & PLAYLIST_SKIP_FLAG ) )
 815     {
 816         msg_Dbg( p_playlist, "no-skip mode, stopping") ;
 817         return NULL;
 818     }
 819
 820     /* TODO: improve this (only use current node) */
 821     /* TODO: use the "shuffled view" internally ? */
 822     /* Random case. This is an exception: if request, but request is skip +- 1
 823      * we don't go to next item but select a new random one. */
 824     if( b_random && (!p_playlist->request.b_request ||
 825         p_playlist->request.i_skip == 1 || p_playlist->request.i_skip == -1 ) )
 826     {
 827         srand( (unsigned int)mdate() );
 828         i_new = 0;
 829         for( i_count = 0; i_count < p_playlist->i_size - 1 ; i_count ++ )
 830         {
 831             i_new =
 832                 (int)((float)p_playlist->i_size * rand() / (RAND_MAX+1.0));
 833             /* Check if the item has not already been played */
 834             if( p_playlist->pp_items[i_new]->i_nb_played == 0 )
 835                 break;
 836         }
 837         if( i_count == p_playlist->i_size )
 838         {
 839             /* The whole playlist has been played: reset the counters */
 840             while( i_count > 0 )
 841             {
 842                 p_playlist->pp_items[--i_count]->i_nb_played = 0;
 843             }
 844             if( !b_loop )
 845             {
 846                 return NULL;
 847             }
 848         }
 849         p_playlist->request.i_skip = 0;
 850         p_playlist->request.b_request = VLC_FALSE;
 851         return p_playlist->pp_items[i_new];
 852     }
 853
 854     /* Start the real work */
 855     if( p_playlist->request.b_request )
 856     {
 857 #ifdef PLAYLIST_DEBUG
 858         msg_Dbg( p_playlist,"processing request" );
 859 #endif
 860         /* We are not playing from a view */
 861         if(  p_playlist->request.i_view == -1  )
 862         {
 863 #ifdef PLAYLIST_DEBUG
 864             msg_Dbg( p_playlist, "non-view mode request");
 865 #endif
 866             /* Directly select the item, just like now */
 867             i_skip = p_playlist->request.i_skip;
 868             i_goto = p_playlist->request.i_goto;
 869
 870             if( p_playlist->i_index < 0 ) p_playlist->i_index = 0;
 871             p_new = p_playlist->pp_items[p_playlist->i_index];
 872
 873             if( i_goto >= 0  && i_goto < p_playlist->i_size )
 874             {
 875                 p_playlist->i_index = i_goto;
 876                 p_new = p_playlist->pp_items[p_playlist->i_index];
 877                 p_playlist->request.i_goto = -1;
 878             }
 879
 880             if( i_skip != 0 )
 881             {
 882                 if( p_playlist->i_index + i_skip < p_playlist->i_size &&
 883                     p_playlist->i_index + i_skip >=  0 )
 884                 {
 885                     p_playlist->i_index += i_skip;
 886                     p_new = p_playlist->pp_items[p_playlist->i_index];
 887                 }
 888                 p_playlist->request.i_skip = 0;
 889             }
 890         }
 891         else
 892         {
 893 #ifdef PLAYLIST_DEBUG
 894             msg_Dbg( p_playlist, "view mode request" );
 895 #endif
 896             p_new = p_playlist->request.p_item;
 897             i_skip = p_playlist->request.i_skip;
 898
 899             /* If we are asked for a node, take its first item */
 900             if( p_playlist->request.p_item == NULL && i_skip == 0 )
 901             {
 902                 i_skip++;
 903             }
 904
 905             p_view = playlist_ViewFind( p_playlist,p_playlist->request.i_view );
 906             p_playlist->status.p_node = p_playlist->request.p_node;
 907             p_playlist->status.i_view = p_playlist->request.i_view;
 908             if( !p_view )
 909             {
 910                 msg_Err( p_playlist, "p_view is NULL and should not! (requested view is %i", p_playlist->request.i_view );
 911             }
 912             else if( i_skip > 0 )
 913             {
 914                 for( i = i_skip; i > 0 ; i-- )
 915                 {
 916                     p_new = playlist_FindNextFromParent( p_playlist,
 917                                     p_playlist->request.i_view,
 918                                     p_view->p_root,
 919                                     p_playlist->request.p_node,
 920                                     p_new );
 921                     if( p_new == NULL )
 922                     {
 923                         if( b_loop )
 924                         {
 925 #ifdef PLAYLIST_DEBUG
 926                             msg_Dbg( p_playlist, "looping" );
 927 #endif
 928                             p_new = playlist_FindNextFromParent( p_playlist,
 929                                       p_playlist->request.i_view,
 930                                       p_view->p_root,
 931                                       p_playlist->request.p_node,
 932                                       NULL );
 933                             if( p_new == NULL ) break;
 934                         }
 935                         else
 936                         {
 937                             break;
 938                         }
 939                     }
 940                 }
 941             }
 942             else if( i_skip < 0 )
 943             {
 944                 for( i = i_skip; i < 0 ; i++ )
 945                 {
 946                     p_new = playlist_FindPrevFromParent( p_playlist,
 947                                     p_playlist->request.i_view,
 948                                     p_view->p_root,
 949                                     p_playlist->request.p_node,
 950                                     p_new );
 951                     if( p_new == NULL ) break;
 952                 }
 953
 954             }
 955         }
 956         /* Clear the request */
 957         p_playlist->request.b_request = VLC_FALSE;
 958     }
 959     /* "Automatic" item change ( next ) */
 960     else
 961     {
 962         p_playlist->request_date = 0;
 963
 964         if( p_playlist->status.i_view == -1 )
 965         {
 966 #ifdef PLAYLIST_DEBUG
 967         msg_Dbg( p_playlist,"no request - old mode" );
 968 #endif
 969             if( p_playlist->i_index + 1 < p_playlist->i_size )
 970             {
 971                 p_playlist->i_index++;
 972                 p_new = p_playlist->pp_items[p_playlist->i_index];
 973                 if( !( p_new->i_flags & PLAYLIST_SKIP_FLAG ) )
 974                 {
 975                     return NULL;
 976                 }
 977             }
 978             else
 979             {
 980                 if( b_loop && p_playlist->i_size > 0)
 981                 {
 982                     p_playlist->i_index = 0;
 983                     p_new = p_playlist->pp_items[0];
 984                 }
 985                 else
 986                     p_new = NULL;
 987             }
 988         }
 989         /* We are playing with a view */
 990         else
 991         {
 992 #ifdef PLAYLIST_DEBUG
 993             msg_Dbg( p_playlist,"no request - from a view" );
 994 #endif
 995             playlist_view_t *p_view =
 996                     playlist_ViewFind( p_playlist,
 997                                    p_playlist->status.i_view );
 998             if( !p_view )
 999             {
1000                 msg_Err( p_playlist, "p_view is NULL and should not! (FIXME)" );
1001             }
1002             else
1003             {
1004                 p_new = playlist_FindNextFromParent( p_playlist,
1005                             p_playlist->status.i_view,
1006                             p_view->p_root,
1007                             p_playlist->status.p_node,
1008                             p_playlist->status.p_item );
1009                 if( p_new == NULL && b_loop )
1010                 {
1011 #ifdef PLAYLIST_DEBUG
1012                     msg_Dbg( p_playlist, "looping" );
1013 #endif
1014                     p_new = playlist_FindNextFromParent( p_playlist,
1015                                    p_playlist->status.i_view,
1016                                    p_view->p_root,
1017                                    p_playlist->status.p_node,
1018                                    NULL );
1019                 }
1020                 if( p_new != NULL && !(p_new->i_flags & PLAYLIST_SKIP_FLAG) )
1021                     return NULL;
1022             }
1023         }
1024     }
1025
1026     /* Reset index */
1027     if( p_playlist->i_index >= 0 && p_new != NULL &&
1028             p_playlist->pp_items[p_playlist->i_index] != p_new )
1029     {
1030         p_playlist->i_index = playlist_GetPositionById( p_playlist,
1031                                                         p_new->input.i_id );
1032     }
1033
1034 #ifdef PLAYLIST_PROFILE
1035     msg_Dbg(p_playlist,"next item found in "I64Fi " us", mdate()-start );
1036 #endif
1037
1038     if( p_new == NULL )
1039     {
1040         msg_Info( p_playlist, "nothing to play" );
1041     }
1042     return p_new;
1043 }
1044
1045 /*****************************************************************************
1046  * PlayItem: start the input thread for an item
1047  ****************************************************************************/
1048 static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
1049 {
1050     vlc_value_t val;
1051
1052     msg_Dbg( p_playlist, "creating new input thread" );
1053
1054     p_item->i_nb_played++;
1055     p_playlist->status.p_item = p_item;
1056
1057     p_playlist->i_index = playlist_GetPositionById( p_playlist,
1058                                                     p_item->input.i_id );
1059
1060 #ifdef PLAYLIST_PROFILE
1061     if( p_playlist->request_date != 0 )
1062     {
1063         msg_Dbg( p_playlist, "request processed after "I64Fi " us",
1064                   mdate() - p_playlist->request_date );
1065     }
1066 #endif
1067
1068     p_playlist->p_input = input_CreateThread( p_playlist, &p_item->input );
1069
1070     var_AddCallback( p_playlist->p_input, "item-change",
1071                          ItemChange, p_playlist );
1072
1073     val.i_int = p_item->input.i_id;
1074     /* unlock the playlist to set the var...mmm */
1075     vlc_mutex_unlock( &p_playlist->object_lock);
1076     var_Set( p_playlist, "playlist-current", val);
1077     vlc_mutex_lock( &p_playlist->object_lock);
1078
1079     return VLC_SUCCESS;
1080
1081 }
1082
1083 /* Forward item change from input */
1084 static int ItemChange( vlc_object_t *p_obj, const char *psz_var,
1085                        vlc_value_t oldval, vlc_value_t newval, void *param )
1086 {
1087     playlist_t *p_playlist = (playlist_t *)param;
1088
1089     //p_playlist->b_need_update = VLC_TRUE;
1090     var_SetInteger( p_playlist, "item-change", newval.i_int );
1091
1092     /* Update view */
1093     /* FIXME: Make that automatic */
1094 //    playlist_ViewUpdate( p_playlist, VIEW_S_AUTHOR );
1095
1096     return VLC_SUCCESS;
1097 }