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

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