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

   1 /*****************************************************************************
   2  * playlist.c : Playlist management functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Clément Stenac <zorglub@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 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 #include "vlc_interaction.h"
  36
  37 #define TITLE_CATEGORY N_( "By category" )
  38 #define TITLE_SIMPLE   N_( "Manually added" )
  39 #define TITLE_ALL      N_( "All items, unsorted" )
  40
  41 #undef PLAYLIST_PROFILE
  42 #undef PLAYLIST_DEBUG
  43
  44 /*****************************************************************************
  45  * Local prototypes
  46  *****************************************************************************/
  47 static void RunThread ( playlist_t * );
  48 static void RunPreparse( playlist_preparse_t * );
  49 static playlist_item_t * NextItem  ( playlist_t * );
  50 static int PlayItem  ( playlist_t *, playlist_item_t * );
  51
  52 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args );
  53
  54 void playlist_PreparseEnqueueItemSub( playlist_t *, playlist_item_t * );
  55
  56 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
  57                                             playlist_item_t *p_node );
  58
  59 /*****************************************************************************
  60  * Helper Function for NextItem
  61  *****************************************************************************/
  62
  63 playlist_item_t *playlist_RecursiveFindLast(playlist_t *p_playlist,
  64                                             playlist_item_t *p_node )
  65 {
  66     int i;
  67     playlist_item_t *p_item;
  68     for ( i = p_node->i_children - 1; i >= 0; i-- )
  69     {
  70         if( p_node->pp_children[i]->i_children == -1 )
  71             return p_node->pp_children[i];
  72         else if(p_node->pp_children[i]->i_children > 0)
  73         {
  74              p_item = playlist_RecursiveFindLast( p_playlist,
  75                                         p_node->pp_children[i] );
  76             if ( p_item != NULL )
  77                 return p_item;
  78         }
  79         else if( i == 0 )
  80             return NULL;
  81     }
  82     return NULL;
  83 }
  84
  85
  86 /**
  87  * Create playlist
  88  *
  89  * Create a playlist structure.
  90  * \param p_parent the vlc object that is to be the parent of this playlist
  91  * \return a pointer to the created playlist, or NULL on error
  92  */
  93 playlist_t * __playlist_Create ( vlc_object_t *p_parent )
  94 {
  95     playlist_t *p_playlist;
  96     playlist_view_t *p_view;
  97     vlc_value_t     val;
  98
  99     /* Allocate structure */
 100     p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
 101     if( !p_playlist )
 102     {
 103         msg_Err( p_parent, "out of memory" );
 104         return NULL;
 105     }
 106
 107     /* These variables control updates */
 108     var_Create( p_playlist, "intf-change", VLC_VAR_BOOL );
 109     val.b_bool = VLC_TRUE;
 110     var_Set( p_playlist, "intf-change", val );
 111
 112     var_Create( p_playlist, "item-change", VLC_VAR_INTEGER );
 113     val.i_int = -1;
 114     var_Set( p_playlist, "item-change", val );
 115
 116     var_Create( p_playlist, "item-deleted", VLC_VAR_INTEGER );
 117     val.i_int = -1;
 118     var_Set( p_playlist, "item-deleted", val );
 119
 120     var_Create( p_playlist, "item-append", VLC_VAR_ADDRESS );
 121
 122     var_Create( p_playlist, "playlist-current", VLC_VAR_INTEGER );
 123     val.i_int = -1;
 124     var_Set( p_playlist, "playlist-current", val );
 125
 126     var_Create( p_playlist, "intf-popupmenu", VLC_VAR_BOOL );
 127
 128     var_Create( p_playlist, "intf-show", VLC_VAR_BOOL );
 129     val.b_bool = VLC_TRUE;
 130     var_Set( p_playlist, "intf-show", val );
 131
 132
 133     /* Variables to control playback */
 134     var_CreateGetBool( p_playlist, "play-and-stop" );
 135     var_CreateGetBool( p_playlist, "random" );
 136     var_CreateGetBool( p_playlist, "repeat" );
 137     var_CreateGetBool( p_playlist, "loop" );
 138
 139     /* Initialise data structures */
 140     vlc_mutex_init( p_playlist, &p_playlist->gc_lock );
 141     p_playlist->i_last_id = 0;
 142     p_playlist->b_go_next = VLC_TRUE;
 143     p_playlist->p_input = NULL;
 144
 145     p_playlist->request_date = 0;
 146
 147     p_playlist->i_views = 0;
 148     p_playlist->pp_views = NULL;
 149
 150     p_playlist->i_index = -1;
 151     p_playlist->i_size = 0;
 152     p_playlist->pp_items = NULL;
 153     p_playlist->i_all_size = 0;
 154     p_playlist->pp_all_items = 0;
 155
 156     playlist_ViewInsert( p_playlist, VIEW_CATEGORY, TITLE_CATEGORY );
 157     playlist_ViewInsert( p_playlist, VIEW_ALL, TITLE_ALL );
 158
 159     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 160
 161     p_playlist->p_general =
 162         playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 163                              _( "General" ), p_view->p_root );
 164     p_playlist->p_general->i_flags |= PLAYLIST_RO_FLAG;
 165
 166     /* Set startup status
 167      * We set to simple view on startup for interfaces that don't do
 168      * anything */
 169     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 170     p_playlist->status.i_view = VIEW_CATEGORY;
 171     p_playlist->status.p_item = NULL;
 172     p_playlist->status.p_node = p_view->p_root;
 173     p_playlist->request.b_request = VLC_FALSE;
 174     p_playlist->status.i_status = PLAYLIST_STOPPED;
 175
 176
 177     p_playlist->i_sort = SORT_ID;
 178     p_playlist->i_order = ORDER_NORMAL;
 179
 180     /* Finally, launch the thread ! */
 181     if( vlc_thread_create( p_playlist, "playlist", RunThread,
 182                            VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 183     {
 184         msg_Err( p_playlist, "cannot spawn playlist thread" );
 185         vlc_object_destroy( p_playlist );
 186         return NULL;
 187     }
 188
 189     /* Preparsing stuff */
 190     p_playlist->p_preparse = vlc_object_create( p_playlist,
 191                                                 sizeof( playlist_preparse_t ) );
 192     if( !p_playlist->p_preparse )
 193     {
 194         msg_Err( p_playlist, "unable to create preparser" );
 195         vlc_object_destroy( p_playlist );
 196         return NULL;
 197     }
 198
 199     // Preparse
 200     p_playlist->p_preparse->i_waiting = 0;
 201     p_playlist->p_preparse->pp_waiting = NULL;
 202
 203     // Interaction
 204     p_playlist->b_manage_interaction = VLC_FALSE;
 205     p_playlist->p_interaction = NULL;
 206
 207     vlc_object_attach( p_playlist->p_preparse, p_playlist );
 208     if( vlc_thread_create( p_playlist->p_preparse, "preparser",
 209                            RunPreparse, VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 210     {
 211         msg_Err( p_playlist, "cannot spawn preparse thread" );
 212         vlc_object_detach( p_playlist->p_preparse );
 213         vlc_object_destroy( p_playlist->p_preparse );
 214         return NULL;
 215     }
 216
 217     /* The object has been initialized, now attach it */
 218     vlc_object_attach( p_playlist, p_parent );
 219
 220     return p_playlist;
 221 }
 222
 223 /**
 224  * Destroy the playlist.
 225  *
 226  * Delete all items in the playlist and free the playlist structure.
 227  * \param p_playlist the playlist structure to destroy
 228  * \return VLC_SUCCESS or an error
 229  */
 230 int playlist_Destroy( playlist_t * p_playlist )
 231 {
 232     int i;
 233     p_playlist->b_die = 1;
 234
 235     while( p_playlist->i_sds )
 236     {
 237         playlist_ServicesDiscoveryRemove( p_playlist,
 238                                           p_playlist->pp_sds[0]->psz_module );
 239     }
 240
 241     vlc_thread_join( p_playlist->p_preparse );
 242     vlc_thread_join( p_playlist );
 243
 244     vlc_object_detach( p_playlist->p_preparse );
 245
 246     var_Destroy( p_playlist, "intf-change" );
 247     var_Destroy( p_playlist, "item-change" );
 248     var_Destroy( p_playlist, "playlist-current" );
 249     var_Destroy( p_playlist, "intf-popmenu" );
 250     var_Destroy( p_playlist, "intf-show" );
 251     var_Destroy( p_playlist, "play-and-stop" );
 252     var_Destroy( p_playlist, "random" );
 253     var_Destroy( p_playlist, "repeat" );
 254     var_Destroy( p_playlist, "loop" );
 255
 256     playlist_Clear( p_playlist );
 257
 258     for( i = p_playlist->i_views - 1; i >= 0 ; i-- )
 259     {
 260         playlist_view_t *p_view = p_playlist->pp_views[i];
 261         if( p_view->psz_name )
 262             free( p_view->psz_name );
 263         playlist_ItemDelete( p_view->p_root );
 264         REMOVE_ELEM( p_playlist->pp_views, p_playlist->i_views, i );
 265         free( p_view );
 266     }
 267
 268     vlc_mutex_destroy( &p_playlist->gc_lock );
 269     vlc_object_destroy( p_playlist->p_preparse );
 270     vlc_object_destroy( p_playlist );
 271
 272     return VLC_SUCCESS;
 273 }
 274
 275
 276 /**
 277  * Do a playlist action.
 278  *
 279  * If there is something in the playlist then you can do playlist actions.
 280  *
 281  * Playlist lock must not be taken when calling this function
 282  *
 283  * \param p_playlist the playlist to do the command on
 284  * \param i_query the command to do
 285  * \param variable number of arguments
 286  * \return VLC_SUCCESS or an error
 287  */
 288 int playlist_LockControl( playlist_t * p_playlist, int i_query, ... )
 289 {
 290     va_list args;
 291     int i_result;
 292     va_start( args, i_query );
 293     vlc_mutex_lock( &p_playlist->object_lock );
 294     i_result = playlist_vaControl( p_playlist, i_query, args );
 295     va_end( args );
 296     vlc_mutex_unlock( &p_playlist->object_lock );
 297     return i_result;
 298 }
 299
 300 /**
 301  * Do a playlist action.
 302  *
 303  * If there is something in the playlist then you can do playlist actions.
 304  *
 305  * Playlist lock must be taken when calling this function
 306  *
 307  * \param p_playlist the playlist to do the command on
 308  * \param i_query the command to do
 309  * \param variable number of arguments
 310  * \return VLC_SUCCESS or an error
 311  */
 312 int playlist_Control( playlist_t * p_playlist, int i_query, ... )
 313 {
 314     va_list args;
 315     int i_result;
 316     va_start( args, i_query );
 317     i_result = playlist_vaControl( p_playlist, i_query, args );
 318     va_end( args );
 319
 320     return i_result;
 321 }
 322
 323 int playlist_vaControl( playlist_t * p_playlist, int i_query, va_list args )
 324 {
 325     playlist_view_t *p_view;
 326     playlist_item_t *p_item, *p_node;
 327     int i_view;
 328     vlc_value_t val;
 329
 330 #ifdef PLAYLIST_PROFILE
 331     p_playlist->request_date = mdate();
 332 #endif
 333
 334     if( p_playlist->i_size <= 0 )
 335     {
 336         return VLC_EGENERIC;
 337     }
 338
 339     switch( i_query )
 340     {
 341     case PLAYLIST_STOP:
 342         p_playlist->status.i_status = PLAYLIST_STOPPED;
 343         p_playlist->request.b_request = VLC_TRUE;
 344         p_playlist->request.p_item = NULL;
 345         break;
 346
 347     case PLAYLIST_ITEMPLAY:
 348         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 349         if ( p_item == NULL || p_item->input.psz_uri == NULL )
 350             return VLC_EGENERIC;
 351         p_playlist->status.i_status = PLAYLIST_RUNNING;
 352         p_playlist->request.i_skip = 0;
 353         p_playlist->request.b_request = VLC_TRUE;
 354         p_playlist->request.p_item = p_item;
 355         p_playlist->request.i_view = p_playlist->status.i_view;
 356         p_view = playlist_ViewFind( p_playlist, p_playlist->status.i_view );
 357         if( p_view )
 358         {
 359             p_playlist->request.p_node = p_view->p_root;
 360         }
 361         else
 362         {
 363             p_playlist->request.p_node = NULL;
 364         }
 365         break;
 366
 367     case PLAYLIST_VIEWPLAY:
 368         i_view = (int)va_arg( args,int );
 369         p_node = (playlist_item_t *)va_arg( args, playlist_item_t * );
 370         p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
 371         if ( p_node == NULL ) //|| (p_item != NULL && p_item->input.psz_uri
 372                                 //                         == NULL ))
 373         {
 374             p_playlist->status.i_status = PLAYLIST_STOPPED;
 375             p_playlist->request.b_request = VLC_TRUE;
 376             return VLC_SUCCESS;
 377         }
 378         p_playlist->status.i_status = PLAYLIST_RUNNING;
 379         p_playlist->request.i_skip = 0;
 380         p_playlist->request.b_request = VLC_TRUE;
 381         p_playlist->request.i_view = i_view;
 382         p_playlist->request.p_node = p_node;
 383         p_playlist->request.p_item = p_item;
 384
 385         /* Don't go further if the node doesn't want to */
 386         if( ! p_playlist->request.p_node->i_flags & PLAYLIST_SKIP_FLAG )
 387         {
 388             p_playlist->b_go_next = VLC_FALSE;
 389         }
 390         else
 391         {
 392             p_playlist->b_go_next = VLC_TRUE;
 393         }
 394         break;
 395
 396     case PLAYLIST_PLAY:
 397         p_playlist->status.i_status = PLAYLIST_RUNNING;
 398
 399         if( p_playlist->p_input )
 400         {
 401             val.i_int = PLAYING_S;
 402             var_Set( p_playlist->p_input, "state", val );
 403             break;
 404         }
 405
 406         /* FIXME : needed ? */
 407         p_playlist->request.b_request = VLC_TRUE;
 408         p_playlist->request.i_view = p_playlist->status.i_view;
 409         p_playlist->request.p_node = p_playlist->status.p_node;
 410         p_playlist->request.p_item = p_playlist->status.p_item;
 411         p_playlist->request.i_skip = 0;
 412         p_playlist->request.i_goto = -1;
 413         break;
 414
 415     case PLAYLIST_AUTOPLAY:
 416         p_playlist->status.i_status = PLAYLIST_RUNNING;
 417         p_playlist->status.p_node = p_playlist->p_general;
 418
 419         p_playlist->request.b_request = VLC_FALSE;
 420         break;
 421
 422     case PLAYLIST_PAUSE:
 423         val.i_int = 0;
 424         if( p_playlist->p_input )
 425             var_Get( p_playlist->p_input, "state", &val );
 426
 427         if( val.i_int == PAUSE_S )
 428         {
 429             p_playlist->status.i_status = PLAYLIST_RUNNING;
 430             if( p_playlist->p_input )
 431             {
 432                 val.i_int = PLAYING_S;
 433                 var_Set( p_playlist->p_input, "state", val );
 434             }
 435         }
 436         else
 437         {
 438             p_playlist->status.i_status = PLAYLIST_PAUSED;
 439             if( p_playlist->p_input )
 440             {
 441                 val.i_int = PAUSE_S;
 442                 var_Set( p_playlist->p_input, "state", val );
 443             }
 444         }
 445         break;
 446
 447     case PLAYLIST_SKIP:
 448         p_playlist->request.i_view = p_playlist->status.i_view;
 449         if( p_playlist->status.i_view > -1 )
 450         {
 451             p_playlist->request.p_node = p_playlist->status.p_node;
 452             p_playlist->request.p_item = p_playlist->status.p_item;
 453         }
 454         else
 455         {
 456             p_playlist->request.p_node = NULL;
 457             p_playlist->request.p_item = NULL;
 458         }
 459         p_playlist->request.i_skip = (int) va_arg( args, int );
 460         p_playlist->request.b_request = VLC_TRUE;
 461         break;
 462
 463     case PLAYLIST_GOTO:
 464         p_playlist->status.i_status = PLAYLIST_RUNNING;
 465         p_playlist->request.p_node = NULL;
 466         p_playlist->request.p_item = NULL;
 467         p_playlist->request.i_view = -1;
 468         p_playlist->request.i_goto = (int) va_arg( args, int );
 469         p_playlist->request.b_request = VLC_TRUE;
 470         break;
 471
 472     default:
 473         msg_Err( p_playlist, "unknown playlist query" );
 474         return VLC_EBADVAR;
 475         break;
 476     }
 477
 478     return VLC_SUCCESS;
 479 }
 480
 481 int playlist_PreparseEnqueue( playlist_t *p_playlist,
 482                               input_item_t *p_item )
 483 {
 484     vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
 485     INSERT_ELEM( p_playlist->p_preparse->pp_waiting,
 486                  p_playlist->p_preparse->i_waiting,
 487                  p_playlist->p_preparse->i_waiting,
 488                  p_item );
 489     vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
 490     return VLC_SUCCESS;
 491 }
 492
 493 /* Should only be called if playlist and preparser are locked */
 494 void playlist_PreparseEnqueueItemSub( playlist_t *p_playlist,
 495                                      playlist_item_t *p_item )
 496 {
 497     int i;
 498     if( p_item->i_children == -1 )
 499     {
 500         INSERT_ELEM( p_playlist->p_preparse->pp_waiting,
 501                      p_playlist->p_preparse->i_waiting,
 502                      p_playlist->p_preparse->i_waiting,
 503                      &(p_item->input) );
 504     }
 505     else
 506     {
 507         for( i = 0; i < p_item->i_children; i++)
 508         {
 509             playlist_PreparseEnqueueItemSub( p_playlist,
 510                                              p_item->pp_children[i] );
 511         }
 512     }
 513 }
 514
 515 int playlist_PreparseEnqueueItem( playlist_t *p_playlist,
 516                                   playlist_item_t *p_item )
 517 {
 518     vlc_mutex_lock( &p_playlist->object_lock );
 519     vlc_mutex_lock( &p_playlist->p_preparse->object_lock );
 520     playlist_PreparseEnqueueItemSub( p_playlist, p_item );
 521     vlc_mutex_unlock( &p_playlist->p_preparse->object_lock );
 522     vlc_mutex_unlock( &p_playlist->object_lock );
 523     return VLC_SUCCESS;
 524 }
 525
 526
 527 /* Destroy remaining objects */
 528 static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
 529                                        mtime_t destroy_date )
 530 {
 531     vlc_object_t *p_obj;
 532
 533     if( destroy_date > mdate() ) return destroy_date;
 534
 535     if( destroy_date == 0 )
 536     {
 537         /* give a little time */
 538         return mdate() + I64C(1000000);
 539     }
 540     else
 541     {
 542         vlc_mutex_lock( &p_playlist->gc_lock );
 543         while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
 544         {
 545             if( p_obj->p_parent != (vlc_object_t*)p_playlist )
 546             {
 547                 /* only first child (ie unused) */
 548                 vlc_object_release( p_obj );
 549                 break;
 550             }
 551             if( i_type == VLC_OBJECT_VOUT )
 552             {
 553                 msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
 554                 vlc_object_detach( p_obj );
 555                 vlc_object_release( p_obj );
 556                 vout_Destroy( (vout_thread_t *)p_obj );
 557             }
 558             else if( i_type == VLC_OBJECT_SOUT )
 559             {
 560                 vlc_object_release( p_obj );
 561                 sout_DeleteInstance( (sout_instance_t*)p_obj );
 562             }
 563         }
 564         vlc_mutex_unlock( &p_playlist->gc_lock );
 565         return 0;
 566     }
 567 }
 568
 569 /*****************************************************************************
 570  * RunThread: main playlist thread
 571  *****************************************************************************/
 572 static void RunThread ( playlist_t *p_playlist )
 573 {
 574     vlc_object_t *p_obj;
 575     playlist_item_t *p_item = NULL;
 576
 577     mtime_t    i_vout_destroyed_date = 0;
 578     mtime_t    i_sout_destroyed_date = 0;
 579
 580     playlist_item_t *p_autodelete_item = NULL;
 581
 582     /* Tell above that we're ready */
 583     vlc_thread_ready( p_playlist );
 584
 585     while( !p_playlist->b_die )
 586     {
 587         if( p_playlist->b_manage_interaction )
 588         {
 589             intf_InteractionManage( p_playlist );
 590         }
 591
 592         vlc_mutex_lock( &p_playlist->object_lock );
 593
 594         /* First, check if we have something to do */
 595         /* FIXME : this can be called several times */
 596         if( p_playlist->request.b_request )
 597         {
 598 #ifdef PLAYLIST_PROFILE
 599             msg_Dbg(p_playlist, "beginning processing of request, "
 600                          I64Fi" us ", mdate() - p_playlist->request_date );
 601 #endif
 602             /* Stop the existing input */
 603             if( p_playlist->p_input )
 604             {
 605                 input_StopThread( p_playlist->p_input );
 606             }
 607             /* The code below will start the next input for us */
 608             if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 609             {
 610                 p_playlist->request.b_request = VLC_FALSE;
 611             }
 612         }
 613
 614         /* If there is an input, check that it doesn't need to die. */
 615         if( p_playlist->p_input )
 616         {
 617             /* This input is dead. Remove it ! */
 618             if( p_playlist->p_input->b_dead )
 619             {
 620                 input_thread_t *p_input;
 621
 622                 p_input = p_playlist->p_input;
 623                 p_playlist->p_input = NULL;
 624
 625                 /* Release the playlist lock, because we may get stuck
 626                  * in input_DestroyThread() for some time. */
 627                 vlc_mutex_unlock( &p_playlist->object_lock );
 628
 629                 /* Destroy input */
 630                 input_DestroyThread( p_input );
 631
 632                 /* Unlink current input
 633                  * (_after_ input_DestroyThread for vout garbage collector) */
 634                 vlc_object_detach( p_input );
 635
 636                 /* Destroy object */
 637                 vlc_object_destroy( p_input );
 638
 639                 i_vout_destroyed_date = 0;
 640                 i_sout_destroyed_date = 0;
 641
 642                 if( p_playlist->status.p_item->i_flags
 643                     & PLAYLIST_REMOVE_FLAG )
 644                 {
 645                      playlist_ItemDelete( p_item );
 646                      p_playlist->status.p_item = NULL;
 647                 }
 648
 649                 continue;
 650             }
 651             /* This input is dying, let it do */
 652             else if( p_playlist->p_input->b_die )
 653             {
 654                 ;
 655             }
 656             /* This input has finished, ask it to die ! */
 657             else if( p_playlist->p_input->b_error
 658                       || p_playlist->p_input->b_eof )
 659             {
 660                 /* TODO FIXME XXX TODO FIXME XXX */
 661                 /* Check for autodeletion */
 662
 663                 if( p_playlist->status.p_item->i_flags & PLAYLIST_DEL_FLAG )
 664                 {
 665                     p_autodelete_item = p_playlist->status.p_item;
 666                 }
 667                 input_StopThread( p_playlist->p_input );
 668                 /* Select the next playlist item */
 669                 vlc_mutex_unlock( &p_playlist->object_lock );
 670                 continue;
 671             }
 672             else if( p_playlist->p_input->i_state != INIT_S )
 673             {
 674                 vlc_mutex_unlock( &p_playlist->object_lock );
 675                 i_vout_destroyed_date =
 676                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
 677                                             i_vout_destroyed_date );
 678                 i_sout_destroyed_date =
 679                     ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
 680                                             i_sout_destroyed_date );
 681                 vlc_mutex_lock( &p_playlist->object_lock );
 682             }
 683         }
 684         else if( p_playlist->status.i_status != PLAYLIST_STOPPED )
 685         {
 686             /* Start another input.
 687              * Get the next item to play */
 688             p_item = NextItem( p_playlist );
 689
 690             /* We must stop */
 691             if( p_item == NULL )
 692             {
 693                 if( p_autodelete_item )
 694                 {
 695                     playlist_Delete( p_playlist,
 696                                      p_autodelete_item->input.i_id );
 697                     p_autodelete_item = NULL;
 698                 }
 699                 p_playlist->status.i_status = PLAYLIST_STOPPED;
 700                 vlc_mutex_unlock( &p_playlist->object_lock );
 701                 continue;
 702             }
 703
 704             PlayItem( p_playlist, p_item );
 705
 706             if( p_autodelete_item )
 707             {
 708                 playlist_Delete( p_playlist, p_autodelete_item->input.i_id );
 709                 p_autodelete_item = NULL;
 710             }
 711         }
 712         else if( p_playlist->status.i_status == PLAYLIST_STOPPED )
 713         {
 714             if( p_item && p_playlist->status.p_item &&
 715                 p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
 716             {
 717                  playlist_ItemDelete( p_item );
 718                  p_playlist->status.p_item = NULL;
 719             }
 720
 721             /* Collect garbage */
 722             vlc_mutex_unlock( &p_playlist->object_lock );
 723             i_sout_destroyed_date =
 724                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
 725             i_vout_destroyed_date =
 726                 ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
 727             vlc_mutex_lock( &p_playlist->object_lock );
 728         }
 729         vlc_mutex_unlock( &p_playlist->object_lock );
 730
 731         msleep( INTF_IDLE_SLEEP / 2 );
 732
 733         /* Stop sleeping earlier if we have work */
 734         /* TODO : statistics about this */
 735         if ( p_playlist->request.b_request &&
 736                         p_playlist->status.i_status == PLAYLIST_RUNNING )
 737         {
 738             continue;
 739         }
 740
 741         msleep( INTF_IDLE_SLEEP / 2 );
 742     }
 743
 744     /* Playlist dying */
 745
 746     /* If there is an input, kill it */
 747     while( 1 )
 748     {
 749         vlc_mutex_lock( &p_playlist->object_lock );
 750
 751         if( p_playlist->p_input == NULL )
 752         {
 753             vlc_mutex_unlock( &p_playlist->object_lock );
 754             break;
 755         }
 756
 757         if( p_playlist->p_input->b_dead )
 758         {
 759             input_thread_t *p_input;
 760
 761             /* Unlink current input */
 762             p_input = p_playlist->p_input;
 763             p_playlist->p_input = NULL;
 764             vlc_mutex_unlock( &p_playlist->object_lock );
 765
 766             /* Destroy input */
 767             input_DestroyThread( p_input );
 768             /* Unlink current input (_after_ input_DestroyThread for vout
 769              * garbage collector)*/
 770             vlc_object_detach( p_input );
 771
 772             /* Destroy object */
 773             vlc_object_destroy( p_input );
 774             continue;
 775         }
 776         else if( p_playlist->p_input->b_die )
 777         {
 778             /* This input is dying, leave it alone */
 779             ;
 780         }
 781         else if( p_playlist->p_input->b_error || p_playlist->p_input->b_eof )
 782         {
 783             input_StopThread( p_playlist->p_input );
 784             vlc_mutex_unlock( &p_playlist->object_lock );
 785             continue;
 786         }
 787         else
 788         {
 789             p_playlist->p_input->b_eof = 1;
 790         }
 791
 792         vlc_mutex_unlock( &p_playlist->object_lock );
 793
 794         msleep( INTF_IDLE_SLEEP );
 795     }
 796
 797     /* close all remaining sout */
 798     while( ( p_obj = vlc_object_find( p_playlist,
 799                                       VLC_OBJECT_SOUT, FIND_CHILD ) ) )
 800     {
 801         vlc_object_release( p_obj );
 802         sout_DeleteInstance( (sout_instance_t*)p_obj );
 803     }
 804
 805     /* close all remaining vout */
 806     while( ( p_obj = vlc_object_find( p_playlist,
 807                                       VLC_OBJECT_VOUT, FIND_CHILD ) ) )
 808     {
 809         vlc_object_detach( p_obj );
 810         vlc_object_release( p_obj );
 811         vout_Destroy( (vout_thread_t *)p_obj );
 812     }
 813 }
 814
 815 /* Queue for items to preparse */
 816 static void RunPreparse ( playlist_preparse_t *p_obj )
 817 {
 818     playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
 819     vlc_bool_t b_sleep;
 820
 821     /* Tell above that we're ready */
 822     vlc_thread_ready( p_obj );
 823
 824     while( !p_playlist->b_die )
 825     {
 826         vlc_mutex_lock( &p_obj->object_lock );
 827
 828         if( p_obj->i_waiting > 0 )
 829         {
 830             input_item_t *p_current = p_obj->pp_waiting[0];
 831             REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
 832             vlc_mutex_unlock( &p_obj->object_lock );
 833             input_Preparse( p_playlist, p_current );
 834             var_SetInteger( p_playlist, "item-change", p_current->i_id );
 835             vlc_mutex_lock( &p_obj->object_lock );
 836         }
 837         b_sleep = ( p_obj->i_waiting == 0 );
 838
 839         vlc_mutex_unlock( &p_obj->object_lock );
 840
 841         if( p_obj->i_waiting == 0 )
 842         {
 843             msleep( INTF_IDLE_SLEEP );
 844         }
 845     }
 846 }
 847
 848 /*****************************************************************************
 849  * NextItem
 850  *****************************************************************************
 851  * This function calculates the next playlist item, depending
 852  * on the playlist course mode (forward, backward, random, view,...).
 853  *****************************************************************************/
 854 static playlist_item_t * NextItem( playlist_t *p_playlist )
 855 {
 856     playlist_item_t *p_new = NULL;
 857     int i_skip,i_goto,i, i_new, i_count ;
 858     playlist_view_t *p_view;
 859
 860     vlc_bool_t b_loop = var_GetBool( p_playlist, "loop" );
 861     vlc_bool_t b_random = var_GetBool( p_playlist, "random" );
 862     vlc_bool_t b_repeat = var_GetBool( p_playlist, "repeat" );
 863     vlc_bool_t b_playstop = var_GetBool( p_playlist, "play-and-stop" );
 864
 865 #ifdef PLAYLIST_PROFILE
 866     /* Calculate time needed */
 867     int64_t start = mdate();
 868 #endif
 869
 870     /* Handle quickly a few special cases */
 871
 872     /* No items to play */
 873     if( p_playlist->i_size == 0 )
 874     {
 875         msg_Info( p_playlist, "playlist is empty" );
 876         return NULL;
 877     }
 878     /* Nothing requested */
 879     if( !p_playlist->request.b_request && p_playlist->status.p_item == NULL )
 880     {
 881         msg_Dbg( p_playlist,"nothing requested, starting" );
 882     }
 883
 884     /* Repeat and play/stop */
 885     if( !p_playlist->request.b_request && b_repeat == VLC_TRUE )
 886     {
 887         msg_Dbg( p_playlist,"repeating item" );
 888         return p_playlist->status.p_item;
 889     }
 890
 891     if( !p_playlist->request.b_request && b_playstop == VLC_TRUE )
 892     {
 893         msg_Dbg( p_playlist,"stopping (play and stop)");
 894         return NULL;
 895     }
 896
 897     if( !p_playlist->request.b_request && p_playlist->status.p_item &&
 898         !( p_playlist->status.p_item->i_flags & PLAYLIST_SKIP_FLAG ) )
 899     {
 900         msg_Dbg( p_playlist, "no-skip mode, stopping") ;
 901         return NULL;
 902     }
 903
 904     /* TODO: improve this (only use current node) */
 905     /* TODO: use the "shuffled view" internally ? */
 906     /* Random case. This is an exception: if request, but request is skip +- 1
 907      * we don't go to next item but select a new random one. */
 908     if( b_random &&
 909         ( !p_playlist->request.b_request ||
 910         ( p_playlist->request.b_request && ( p_playlist->request.p_item == NULL ||
 911           p_playlist->request.i_skip == 1 || p_playlist->request.i_skip == -1 ) ) ) )
 912     {
 913         /* how many items to choose from ? */
 914         i_count = 0;
 915         for ( i = 0; i < p_playlist->i_size; i++ )
 916         {
 917             if ( p_playlist->pp_items[i]->i_nb_played == 0 )
 918                 i_count++;
 919         }
 920         /* Nothing left? */
 921         if ( i_count == 0 )
 922         {
 923             /* Don't loop? Exit! */
 924             if( !b_loop )
 925                 return NULL;
 926             /* Otherwise reset the counter */
 927             for ( i = 0; i < p_playlist->i_size; i++ )
 928             {
 929                 p_playlist->pp_items[i]->i_nb_played = 0;
 930             }
 931             i_count = p_playlist->i_size;
 932         }
 933         srand( (unsigned int)mdate() );
 934         i = rand() % i_count + 1 ;
 935         /* loop thru the list and count down the unplayed items to the selected one */
 936         for ( i_new = 0; i_new < p_playlist->i_size && i > 0; i_new++ )
 937         {
 938             if ( p_playlist->pp_items[i_new]->i_nb_played == 0 )
 939                 i--;
 940         }
 941         i_new--;
 942
 943         p_playlist->request.i_skip = 0;
 944         p_playlist->request.b_request = VLC_FALSE;
 945         return p_playlist->pp_items[i_new];
 946     }
 947
 948     /* Start the real work */
 949     if( p_playlist->request.b_request )
 950     {
 951 #ifdef PLAYLIST_DEBUG
 952         msg_Dbg( p_playlist,"processing request" );
 953 #endif
 954         /* We are not playing from a view */
 955         if( p_playlist->request.i_view == -1  )
 956         {
 957 #ifdef PLAYLIST_DEBUG
 958             msg_Dbg( p_playlist, "non-view mode request");
 959 #endif
 960             /* Directly select the item, just like now */
 961             p_new = p_playlist->request.p_item;
 962             i_skip = p_playlist->request.i_skip;
 963             i_goto = p_playlist->request.i_goto;
 964
 965             if( p_playlist->i_index < 0 ) p_playlist->i_index = 0;
 966             if ( p_new == NULL )
 967                 p_new = p_playlist->pp_items[p_playlist->i_index];
 968
 969             if( i_goto >= 0  && i_goto < p_playlist->i_size )
 970             {
 971                 p_playlist->i_index = i_goto;
 972                 p_new = p_playlist->pp_items[p_playlist->i_index];
 973                 p_playlist->request.i_goto = -1;
 974             }
 975
 976             if( i_skip != 0 )
 977             {
 978                 if( p_playlist->i_index + i_skip < p_playlist->i_size &&
 979                     p_playlist->i_index + i_skip >=  0 )
 980                 {
 981                     p_playlist->i_index += i_skip;
 982                     p_new = p_playlist->pp_items[p_playlist->i_index];
 983                 }
 984                 p_playlist->request.i_skip = 0;
 985             }
 986         }
 987         else
 988         {
 989 #ifdef PLAYLIST_DEBUG
 990             msg_Dbg( p_playlist, "view mode request" );
 991 #endif
 992             p_new = p_playlist->request.p_item;
 993             i_skip = p_playlist->request.i_skip;
 994
 995             /* If we are asked for a node, take its first item */
 996             if( p_playlist->request.p_item == NULL && i_skip == 0 )
 997             {
 998                 i_skip++;
 999             }
1000
1001             p_view = playlist_ViewFind( p_playlist,p_playlist->request.i_view );
1002             p_playlist->status.p_node = p_playlist->request.p_node;
1003             p_playlist->status.i_view = p_playlist->request.i_view;
1004             if( !p_view )
1005             {
1006                 msg_Err( p_playlist, "p_view is NULL and should not! (requested view is %i", p_playlist->request.i_view );
1007             }
1008             else if( i_skip > 0 )
1009             {
1010                 for( i = i_skip; i > 0 ; i-- )
1011                 {
1012                     p_new = playlist_FindNextFromParent( p_playlist,
1013                                     p_playlist->request.i_view,
1014                                     p_view->p_root,
1015                                     p_playlist->request.p_node,
1016                                     p_new );
1017                     if( p_new == NULL )
1018                     {
1019 #ifdef PLAYLIST_DEBUG
1020                         msg_Dbg( p_playlist, "looping" );
1021 #endif
1022                         p_new = playlist_FindNextFromParent( p_playlist,
1023                                   p_playlist->request.i_view,
1024                                   p_view->p_root,
1025                                   p_view->p_root,
1026                                   NULL );
1027                         if( p_new == NULL ) break;
1028                     }
1029                 }
1030             }
1031             else if( i_skip < 0 )
1032             {
1033                 for( i = i_skip; i < 0 ; i++ )
1034                 {
1035                     p_new = playlist_FindPrevFromParent( p_playlist,
1036                                     p_playlist->request.i_view,
1037                                     p_view->p_root,
1038                                     p_playlist->request.p_node,
1039                                     p_new );
1040                     if( p_new == NULL )
1041                     {
1042                     /* We reach the beginning of the playlist.
1043                        Go back to the last item. */
1044                         p_new = playlist_RecursiveFindLast( p_playlist,
1045                                                             p_view->p_root );
1046                     }
1047                     if( p_new == NULL ) break;
1048                 }
1049
1050             }
1051         }
1052         /* Clear the request */
1053         p_playlist->request.b_request = VLC_FALSE;
1054     }
1055     /* "Automatic" item change ( next ) */
1056     else
1057     {
1058         p_playlist->request_date = 0;
1059
1060         if( p_playlist->status.i_view == -1 )
1061         {
1062 #ifdef PLAYLIST_DEBUG
1063         msg_Dbg( p_playlist, "no request - old mode" );
1064 #endif
1065             if( p_playlist->i_index + 1 < p_playlist->i_size )
1066             {
1067                 p_playlist->i_index++;
1068                 p_new = p_playlist->pp_items[p_playlist->i_index];
1069                 if( !( p_new->i_flags & PLAYLIST_SKIP_FLAG ) )
1070                 {
1071                     return NULL;
1072                 }
1073             }
1074             else
1075             {
1076                 if( b_loop && p_playlist->i_size > 0)
1077                 {
1078                     p_playlist->i_index = 0;
1079                     p_new = p_playlist->pp_items[0];
1080                 }
1081                 else
1082                     p_new = NULL;
1083             }
1084         }
1085         /* We are playing with a view */
1086         else
1087         {
1088 #ifdef PLAYLIST_DEBUG
1089             msg_Dbg( p_playlist,"no request - from a view" );
1090 #endif
1091             playlist_view_t *p_view =
1092                     playlist_ViewFind( p_playlist,
1093                                    p_playlist->status.i_view );
1094             if( !p_view )
1095             {
1096                 msg_Err( p_playlist, "p_view is NULL and should not! (FIXME)" );
1097             }
1098             else
1099             {
1100                 p_new = playlist_FindNextFromParent( p_playlist,
1101                             p_playlist->status.i_view,
1102                             p_view->p_root,
1103                             p_playlist->status.p_node,
1104                             p_playlist->status.p_item );
1105                 if( p_new == NULL && b_loop )
1106                 {
1107 #ifdef PLAYLIST_DEBUG
1108                     msg_Dbg( p_playlist, "looping" );
1109 #endif
1110                     p_new = playlist_FindNextFromParent( p_playlist,
1111                                    p_playlist->status.i_view,
1112                                    p_view->p_root,
1113                                    p_view->p_root,
1114                                    NULL );
1115                 }
1116                 if( p_new != NULL && !(p_new->i_flags & PLAYLIST_SKIP_FLAG) )
1117                     return NULL;
1118             }
1119         }
1120     }
1121
1122     /* Reset index */
1123     if( p_playlist->i_index >= 0 && p_new != NULL &&
1124             p_playlist->pp_items[p_playlist->i_index] != p_new )
1125     {
1126         p_playlist->i_index = playlist_GetPositionById( p_playlist,
1127                                                         p_new->input.i_id );
1128     }
1129
1130 #ifdef PLAYLIST_PROFILE
1131     msg_Dbg(p_playlist,"next item found in "I64Fi " us", mdate()-start );
1132 #endif
1133
1134     if( p_new == NULL )
1135     {
1136         msg_Info( p_playlist, "nothing to play" );
1137     }
1138     return p_new;
1139 }
1140
1141 /*****************************************************************************
1142  * PlayItem: start the input thread for an item
1143  ****************************************************************************/
1144 static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
1145 {
1146     vlc_value_t val;
1147
1148     msg_Dbg( p_playlist, "creating new input thread" );
1149
1150     p_item->i_nb_played++;
1151     p_playlist->status.p_item = p_item;
1152
1153     p_playlist->i_index = playlist_GetPositionById( p_playlist,
1154                                                     p_item->input.i_id );
1155
1156 #ifdef PLAYLIST_PROFILE
1157     if( p_playlist->request_date != 0 )
1158     {
1159         msg_Dbg( p_playlist, "request processed after "I64Fi " us",
1160                   mdate() - p_playlist->request_date );
1161     }
1162 #endif
1163
1164     p_playlist->p_input = input_CreateThread( p_playlist, &p_item->input );
1165
1166     val.i_int = p_item->input.i_id;
1167     /* unlock the playlist to set the var...mmm */
1168     vlc_mutex_unlock( &p_playlist->object_lock);
1169     var_Set( p_playlist, "playlist-current", val);
1170     vlc_mutex_lock( &p_playlist->object_lock);
1171
1172     return VLC_SUCCESS;
1173
1174 }