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