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