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