engine.c 21.6 KB
Newer Older
1 2 3 4
/*****************************************************************************
 * engine.c : Run the playlist and handle its control
 *****************************************************************************
 * Copyright (C) 1999-2004 the VideoLAN team
Antoine Cellerier's avatar
Antoine Cellerier committed
5
 * $Id$
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
 *
 * Authors: Samuel Hocevar <sam@zoy.org>
 *          Clément Stenac <zorglub@videolan.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/sout.h>
#include <vlc/input.h>
#include "vlc_playlist.h"
#include "vlc_interaction.h"
30
#include "playlist_internal.h"
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static void VariablesInit( playlist_t *p_playlist );

/**
 * Create playlist
 *
 * Create a playlist structure.
 * \param p_parent the vlc object that is to be the parent of this playlist
 * \return a pointer to the created playlist, or NULL on error
 */
playlist_t * playlist_Create( vlc_object_t *p_parent )
{
    playlist_t *p_playlist;
47
    int i_tree;
48 49 50 51 52 53 54 55

    /* Allocate structure */
    p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
    if( !p_playlist )
    {
        msg_Err( p_parent, "out of memory" );
        return NULL;
    }
56
    p_parent->p_libvlc->p_playlist = p_playlist;
57 58 59 60 61 62 63 64 65

    VariablesInit( p_playlist );

    /* Initialise data structures */
    vlc_mutex_init( p_playlist, &p_playlist->gc_lock );
    p_playlist->i_last_playlist_id = 0;
    p_playlist->i_last_input_id = 0;
    p_playlist->p_input = NULL;

66 67 68
    p_playlist->i_vout_destroyed_date = 0;
    p_playlist->i_sout_destroyed_date = 0;

69 70 71 72 73 74 75 76
    p_playlist->i_size = 0;
    p_playlist->pp_items = NULL;
    p_playlist->i_all_size = 0;
    p_playlist->pp_all_items = NULL;

    p_playlist->i_input_items = 0;
    p_playlist->pp_input_items = NULL;

Clément Stenac's avatar
Clément Stenac committed
77 78 79 80 81
    p_playlist->i_random = 0;
    p_playlist->pp_random = NULL;
    p_playlist->i_random_index = 0;
    p_playlist->b_reset_random = VLC_TRUE;

82 83 84 85
    i_tree = var_CreateGetBool( p_playlist, "playlist-tree" );
    p_playlist->b_always_tree = (i_tree == 1);
    p_playlist->b_never_tree = (i_tree == 2);

86 87
    p_playlist->b_doing_ml = VLC_FALSE;

88 89 90 91 92 93 94 95
    p_playlist->p_root_category = playlist_NodeCreate( p_playlist, NULL, NULL);
    p_playlist->p_root_onelevel = playlist_NodeCreate( p_playlist, NULL, NULL);

    /* Create playlist and media library */
    p_playlist->p_local_category = playlist_NodeCreate( p_playlist,
                                 _( "Playlist" ),p_playlist->p_root_category );
    p_playlist->p_local_onelevel =  playlist_NodeCreate( p_playlist,
                                _( "Playlist" ), p_playlist->p_root_onelevel );
96 97 98
    p_playlist->p_local_category->i_flags |= PLAYLIST_RO_FLAG;
    p_playlist->p_local_onelevel->i_flags |= PLAYLIST_RO_FLAG;

99
    /* Link the nodes together. Todo: actually create them from the same input*/
100 101
    p_playlist->p_local_onelevel->p_input->i_id =
        p_playlist->p_local_category->p_input->i_id;
102 103 104 105 106 107 108 109 110 111 112

    if( config_GetInt( p_playlist, "media-library") )
    {
        p_playlist->p_ml_category =   playlist_NodeCreate( p_playlist,
                           _( "Media Library" ), p_playlist->p_root_category );
        p_playlist->p_ml_onelevel =  playlist_NodeCreate( p_playlist,
                           _( "Media Library" ), p_playlist->p_root_onelevel );
        p_playlist->p_ml_category->i_flags |= PLAYLIST_RO_FLAG;
        p_playlist->p_ml_onelevel->i_flags |= PLAYLIST_RO_FLAG;
        p_playlist->p_ml_onelevel->p_input->i_id =
             p_playlist->p_ml_category->p_input->i_id;
113

114 115 116 117 118
    }
    else
    {
        p_playlist->p_ml_category = p_playlist->p_ml_onelevel = NULL;
    }
119 120 121

    /* Initial status */
    p_playlist->status.p_item = NULL;
122
    p_playlist->status.p_node = p_playlist->p_local_onelevel;
123 124 125 126 127 128 129
    p_playlist->request.b_request = VLC_FALSE;
    p_playlist->status.i_status = PLAYLIST_STOPPED;

    p_playlist->i_sort = SORT_ID;
    p_playlist->i_order = ORDER_NORMAL;

    vlc_object_attach( p_playlist, p_parent );
130 131

    playlist_MLLoad( p_playlist );
132 133 134 135 136 137 138 139 140 141
    return p_playlist;
}

void playlist_Destroy( playlist_t *p_playlist )
{
    while( p_playlist->i_sds )
    {
        playlist_ServicesDiscoveryRemove( p_playlist,
                                          p_playlist->pp_sds[0]->psz_module );
    }
142 143 144

    playlist_MLDump( p_playlist );

145
    vlc_thread_join( p_playlist->p_preparse );
146
    vlc_thread_join( p_playlist->p_secondary_preparse );
147 148 149
    vlc_thread_join( p_playlist );

    vlc_object_detach( p_playlist->p_preparse );
150
    vlc_object_detach( p_playlist->p_secondary_preparse );
151 152 153 154 155 156 157

    var_Destroy( p_playlist, "intf-change" );
    var_Destroy( p_playlist, "item-change" );
    var_Destroy( p_playlist, "playlist-current" );
    var_Destroy( p_playlist, "intf-popmenu" );
    var_Destroy( p_playlist, "intf-show" );
    var_Destroy( p_playlist, "play-and-stop" );
158
    var_Destroy( p_playlist, "play-and-exit" );
159 160 161 162 163
    var_Destroy( p_playlist, "random" );
    var_Destroy( p_playlist, "repeat" );
    var_Destroy( p_playlist, "loop" );
    var_Destroy( p_playlist, "activity" );

164 165 166 167 168 169
    PL_LOCK;
    playlist_NodeDelete( p_playlist, p_playlist->p_root_category, VLC_TRUE,
                         VLC_TRUE );
    playlist_NodeDelete( p_playlist, p_playlist->p_root_onelevel, VLC_TRUE,
                         VLC_TRUE );
    PL_UNLOCK;
170 171 172 173 174 175

    if( p_playlist->p_stats )
        free( p_playlist->p_stats );

    vlc_mutex_destroy( &p_playlist->gc_lock );
    vlc_object_destroy( p_playlist->p_preparse );
176
    vlc_object_destroy( p_playlist->p_secondary_preparse );
177
    vlc_object_detach( p_playlist );
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
    vlc_object_destroy( p_playlist );

}
/* Destroy remaining objects */
static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
                                       mtime_t destroy_date )
{
    vlc_object_t *p_obj;

    if( destroy_date > mdate() ) return destroy_date;

    if( destroy_date == 0 )
    {
        /* give a little time */
        return mdate() + I64C(1000000);
    }
    else
    {
        vlc_mutex_lock( &p_playlist->gc_lock );
        while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
        {
            if( p_obj->p_parent != (vlc_object_t*)p_playlist )
            {
                /* only first child (ie unused) */
                vlc_object_release( p_obj );
                break;
            }
            if( i_type == VLC_OBJECT_VOUT )
            {
                msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
                vlc_object_detach( p_obj );
                vlc_object_release( p_obj );
                vout_Destroy( (vout_thread_t *)p_obj );
            }
            else if( i_type == VLC_OBJECT_SOUT )
            {
                vlc_object_release( p_obj );
                sout_DeleteInstance( (sout_instance_t*)p_obj );
            }
        }
        vlc_mutex_unlock( &p_playlist->gc_lock );
        return 0;
    }
}

/** Main loop for the playlist */
void playlist_MainLoop( playlist_t *p_playlist )
{
    playlist_item_t *p_item = NULL;
227
    vlc_bool_t b_playexit = var_GetBool( p_playlist, "play-and-exit" );
228
    PL_LOCK;
229 230 231 232 233 234

    /* First, check if we have something to do */
    /* FIXME : this can be called several times */
    if( p_playlist->request.b_request )
    {
        /* Stop the existing input */
235
        if( p_playlist->p_input && !p_playlist->p_input->b_die )
236
        {
237
            PL_DEBUG( "incoming request - stopping current input" );
238 239 240 241 242 243 244 245 246 247 248 249
            input_StopThread( p_playlist->p_input );
        }
    }

    /* If there is an input, check that it doesn't need to die. */
    if( p_playlist->p_input )
    {
        /* This input is dead. Remove it ! */
        if( p_playlist->p_input->b_dead )
        {
            int i_activity;
            input_thread_t *p_input;
250
            PL_DEBUG( "dead input" );
251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268

            p_input = p_playlist->p_input;
            p_playlist->p_input = NULL;

            /* Release the playlist lock, because we may get stuck
             * in input_DestroyThread() for some time. */
            PL_UNLOCK

            /* Destroy input */
            input_DestroyThread( p_input );

            /* Unlink current input
             * (_after_ input_DestroyThread for vout garbage collector) */
            vlc_object_detach( p_input );

            /* Destroy object */
            vlc_object_destroy( p_input );

269 270
            p_playlist->i_vout_destroyed_date = 0;
            p_playlist->i_sout_destroyed_date = 0;
271 272 273 274

            if( p_playlist->status.p_item->i_flags
                & PLAYLIST_REMOVE_FLAG )
            {
275 276
                 PL_DEBUG( "%s was marked for deletion, deleting",
                                 PLI_NAME( p_playlist->status.p_item  ) );
277
                 playlist_ItemDelete( p_playlist->status.p_item );
278 279
                 if( p_playlist->request.p_item == p_playlist->status.p_item )
                     p_playlist->request.p_item = NULL;
280 281 282 283 284 285 286 287 288 289 290 291
                 p_playlist->status.p_item = NULL;
            }

            i_activity= var_GetInteger( p_playlist, "activity") ;
            var_SetInteger( p_playlist, "activity", i_activity -
                            DEFAULT_INPUT_ACTIVITY );

            return;
        }
        /* This input is dying, let it do */
        else if( p_playlist->p_input->b_die )
        {
292
            PL_DEBUG( "dying input" );
293 294 295 296 297
        }
        /* This input has finished, ask it to die ! */
        else if( p_playlist->p_input->b_error
                  || p_playlist->p_input->b_eof )
        {
298
            PL_DEBUG( "finished input" );
299 300 301 302 303 304 305
            input_StopThread( p_playlist->p_input );
            /* Select the next playlist item */
            PL_UNLOCK
            return;
        }
        else if( p_playlist->p_input->i_state != INIT_S )
        {
306
            PL_UNLOCK;
307
            p_playlist->i_vout_destroyed_date =
308
                ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
309 310
                                        p_playlist->i_vout_destroyed_date );
            p_playlist->i_sout_destroyed_date =
311
                ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
312
                                        p_playlist->i_sout_destroyed_date );
313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328
            PL_LOCK
        }
    }
    else
    {
        /* No input. Several cases
         *  - No request, running status -> start new item
         *  - No request, stopped status -> collect garbage
         *  - Request, running requested -> start new item
         *  - Request, stopped requested -> collect garbage
         */
         if( (!p_playlist->request.b_request &&
              p_playlist->status.i_status != PLAYLIST_STOPPED) ||
              ( p_playlist->request.b_request &&
                p_playlist->request.i_status != PLAYLIST_STOPPED ) )
         {
329
             msg_Dbg( p_playlist, "starting new item" );
330 331 332 333 334 335 336 337
             stats_TimerStart( p_playlist, "Playlist walk",
                                  STATS_TIMER_PLAYLIST_WALK );
             p_item = playlist_NextItem( p_playlist );
             stats_TimerStop( p_playlist, STATS_TIMER_PLAYLIST_WALK );

             if( p_item == NULL )
             {
                msg_Dbg( p_playlist, "nothing to play" );
338 339 340
                if( b_playexit == VLC_TRUE )
                {
                    msg_Info( p_playlist, "end of playlist, exiting" );
341
                    p_playlist->p_libvlc->b_die = VLC_TRUE;
342
                }
343 344 345 346 347 348 349 350
                p_playlist->status.i_status = PLAYLIST_STOPPED;
                PL_UNLOCK
                return;
             }
             playlist_PlayItem( p_playlist, p_item );
         }
         else
         {
351
             p_playlist->status.i_status = PLAYLIST_STOPPED;
352
             if( p_playlist->status.p_item &&
353 354
                 p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
             {
355 356
                 PL_DEBUG( "deleting item marked for deletion" );
                 playlist_ItemDelete( p_playlist->status.p_item );
357 358 359 360 361
                 p_playlist->status.p_item = NULL;
             }

             /* Collect garbage */
             PL_UNLOCK
362
             p_playlist->i_sout_destroyed_date =
363
             ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
364
             p_playlist->i_vout_destroyed_date =
365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449
             ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
             PL_LOCK
         }
    }
    PL_UNLOCK
}

/** Playlist dying last loop */
void playlist_LastLoop( playlist_t *p_playlist )
{
    vlc_object_t *p_obj;

    /* If there is an input, kill it */
    while( 1 )
    {
        PL_LOCK

        if( p_playlist->p_input == NULL )
        {
            PL_UNLOCK
            break;
        }

        if( p_playlist->p_input->b_dead )
        {
            input_thread_t *p_input;

            /* Unlink current input */
            p_input = p_playlist->p_input;
            p_playlist->p_input = NULL;
            PL_UNLOCK

            /* Destroy input */
            input_DestroyThread( p_input );
            /* Unlink current input (_after_ input_DestroyThread for vout
             * garbage collector)*/
            vlc_object_detach( p_input );

            /* Destroy object */
            vlc_object_destroy( p_input );
            continue;
        }
        else if( p_playlist->p_input->b_die )
        {
            /* This input is dying, leave it alone */
            ;
        }
        else if( p_playlist->p_input->b_error || p_playlist->p_input->b_eof )
        {
            input_StopThread( p_playlist->p_input );
            PL_UNLOCK
            continue;
        }
        else
        {
            p_playlist->p_input->b_eof = 1;
        }

        PL_UNLOCK

        msleep( INTF_IDLE_SLEEP );
    }

    /* close all remaining sout */
    while( ( p_obj = vlc_object_find( p_playlist,
                                      VLC_OBJECT_SOUT, FIND_CHILD ) ) )
    {
        vlc_object_release( p_obj );
        sout_DeleteInstance( (sout_instance_t*)p_obj );
    }

    /* close all remaining vout */
    while( ( p_obj = vlc_object_find( p_playlist,
                                      VLC_OBJECT_VOUT, FIND_CHILD ) ) )
    {
        vlc_object_detach( p_obj );
        vlc_object_release( p_obj );
        vout_Destroy( (vout_thread_t *)p_obj );
    }
}

/** Main loop for preparser queue */
void playlist_PreparseLoop( playlist_preparse_t *p_obj )
{
    playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
450
    input_item_t *p_current;
451
    int i_activity;
Clément Stenac's avatar
Clément Stenac committed
452
    uint32_t i_m, i_o;
453

454
    while( !p_playlist->b_die )
455
    {
456 457 458 459 460 461 462 463 464 465 466 467
        vlc_mutex_lock( &p_obj->object_lock );
        while( p_obj->i_waiting == 0 )
        {
            vlc_cond_wait( &p_obj->object_wait, &p_obj->object_lock );
            if( p_playlist->b_die )
            {
                vlc_mutex_unlock( &p_obj->object_lock );
                return;
            }
        }

        p_current = p_obj->pp_waiting[0];
468 469
        REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
        vlc_mutex_unlock( &p_obj->object_lock );
470

Clément Stenac's avatar
Clément Stenac committed
471
        PL_LOCK;
472 473 474 475 476 477 478 479 480 481 482 483 484 485 486
        if( p_current )
        {
            vlc_bool_t b_preparsed = VLC_FALSE;
            if( strncmp( p_current->psz_uri, "http:", 5 ) &&
                strncmp( p_current->psz_uri, "rtsp:", 5 ) &&
                strncmp( p_current->psz_uri, "udp:", 4 ) &&
                strncmp( p_current->psz_uri, "mms:", 4 ) &&
                strncmp( p_current->psz_uri, "cdda:", 4 ) &&
                strncmp( p_current->psz_uri, "dvd:", 4 ) &&
                strncmp( p_current->psz_uri, "v4l:", 4 ) &&
                strncmp( p_current->psz_uri, "dshow:", 6 ) )
            {
                b_preparsed = VLC_TRUE;
                stats_TimerStart( p_playlist, "Preparse run",
                                  STATS_TIMER_PREPARSE );
Clément Stenac's avatar
Clément Stenac committed
487
                PL_UNLOCK;
488
                input_Preparse( p_playlist, p_current );
Clément Stenac's avatar
Clément Stenac committed
489
                PL_LOCK;
490 491
                stats_TimerStop( p_playlist, STATS_TIMER_PREPARSE );
            }
Clément Stenac's avatar
Clément Stenac committed
492
            PL_UNLOCK;
493 494
            if( b_preparsed )
            {
495 496
                p_current->p_meta->i_status |= ITEM_PREPARSED;
                var_SetInteger( p_playlist, "item-change", p_current->i_id );
497
            }
498
            PL_LOCK;
499

Clément Stenac's avatar
Clément Stenac committed
500
            /* If we haven't retrieved enough meta, add to secondary queue
501
             * which will run the "meta fetchers"
Clément Stenac's avatar
Clément Stenac committed
502 503 504
             * TODO:
             *  don't do this for things we won't get meta for, like
             *  videos
505
             */
Clément Stenac's avatar
Clément Stenac committed
506 507 508 509
            if( !input_MetaSatisfied( p_playlist, p_current, &i_m, &i_o,
                                      VLC_TRUE ) )
            {
                preparse_item_t p;
510 511
                p.p_item = p_current;
                p.b_fetch_art = VLC_FALSE;
512
                vlc_mutex_lock( &p_playlist->p_secondary_preparse->object_lock);
513
                INSERT_ELEM( p_playlist->p_secondary_preparse->p_waiting,
514 515
                             p_playlist->p_secondary_preparse->i_waiting,
                             p_playlist->p_secondary_preparse->i_waiting,
516
                             p );
517 518
                vlc_mutex_unlock(
                            &p_playlist->p_secondary_preparse->object_lock);
519 520
                vlc_cond_signal(
                            &p_playlist->p_secondary_preparse->object_wait );
Clément Stenac's avatar
Clément Stenac committed
521
            }
522
            else
Clément Stenac's avatar
Clément Stenac committed
523
                vlc_gc_decref( p_current );
524
            PL_UNLOCK;
525 526
        }
        else
527 528
            PL_UNLOCK;

529
        vlc_mutex_lock( &p_obj->object_lock );
530
        i_activity = var_GetInteger( p_playlist, "activity" );
531
        if( i_activity < 0 ) i_activity = 0;
532
        vlc_mutex_unlock( &p_obj->object_lock );
533
        /* Sleep at least 1ms */
534 535 536 537
        msleep( (i_activity+1) * 1000 );
    }
}

538
/** Main loop for secondary preparser queue */
539
void playlist_SecondaryPreparseLoop( playlist_secondary_preparse_t *p_obj )
540 541
{
    playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
542 543 544
    vlc_bool_t b_fetch_art;
    input_item_t *p_item;
    int i_activity;
545

546
    while( !p_playlist->b_die )
547
    {
548 549 550 551 552 553 554 555 556 557 558 559 560
        vlc_mutex_lock( &p_obj->object_lock );
        while( p_obj->i_waiting == 0 )
        {
            vlc_cond_wait( &p_obj->object_wait, &p_obj->object_lock );
            if( p_playlist->b_die )
            {
                vlc_mutex_unlock( &p_obj->object_lock );
                return;
            }
        }

        b_fetch_art = p_obj->p_waiting->b_fetch_art;
        p_item = p_obj->p_waiting->p_item;
561
        REMOVE_ELEM( p_obj->p_waiting, p_obj->i_waiting, 0 );
562
        vlc_mutex_unlock( &p_obj->object_lock );
563
        if( p_item )
564
        {
Clément Stenac's avatar
Clément Stenac committed
565 566 567 568
            if( !b_fetch_art )
            {
                input_MetaFetch( p_playlist, p_item );
                p_item->p_meta->i_status |= ITEM_META_FETCHED;
569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
                var_SetInteger( p_playlist, "item-change", p_item->i_id );
                /*  Fetch right now */
                if( var_GetInteger( p_playlist, "album-art" ) == ALBUM_ART_ALL )
                {
                    vlc_mutex_lock( &p_obj->object_lock );
                    preparse_item_t p;
                    p.p_item = p_item;
                    p.b_fetch_art = VLC_TRUE;
                    INSERT_ELEM( p_playlist->p_secondary_preparse->p_waiting,
                                 p_playlist->p_secondary_preparse->i_waiting,
                                 0, p );
                    vlc_mutex_unlock( &p_obj->object_lock );
                }
                else
                    vlc_gc_decref( p_item );
Clément Stenac's avatar
Clément Stenac committed
584 585
            }
            else
586 587 588
            {
                input_ArtFetch( p_playlist, p_item );
                p_item->p_meta->i_status |= ITEM_ART_FETCHED;
589 590
                vlc_gc_decref( p_item );
           }
591
        }
592 593 594 595 596 597
        vlc_mutex_lock( &p_obj->object_lock );
        i_activity = var_GetInteger( p_playlist, "activity" );
        if( i_activity < 0 ) i_activity = 0;
        vlc_mutex_unlock( &p_obj->object_lock );
        /* Sleep at least 1ms */
        msleep( (i_activity+1) * 1000 );
598 599 600
    }
}

601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633
static void VariablesInit( playlist_t *p_playlist )
{
    vlc_value_t val;
    /* These variables control updates */
    var_Create( p_playlist, "intf-change", VLC_VAR_BOOL );
    val.b_bool = VLC_TRUE;
    var_Set( p_playlist, "intf-change", val );

    var_Create( p_playlist, "item-change", VLC_VAR_INTEGER );
    val.i_int = -1;
    var_Set( p_playlist, "item-change", val );

    var_Create( p_playlist, "item-deleted", VLC_VAR_INTEGER );
    val.i_int = -1;
    var_Set( p_playlist, "item-deleted", val );

    var_Create( p_playlist, "item-append", VLC_VAR_ADDRESS );

    var_Create( p_playlist, "playlist-current", VLC_VAR_INTEGER );
    val.i_int = -1;
    var_Set( p_playlist, "playlist-current", val );

    var_Create( p_playlist, "intf-popupmenu", VLC_VAR_BOOL );

    var_Create( p_playlist, "intf-show", VLC_VAR_BOOL );
    val.b_bool = VLC_TRUE;
    var_Set( p_playlist, "intf-show", val );

    var_Create( p_playlist, "activity", VLC_VAR_INTEGER );
    var_SetInteger( p_playlist, "activity", 0 );

    /* Variables to control playback */
    var_CreateGetBool( p_playlist, "play-and-stop" );
634
    var_CreateGetBool( p_playlist, "play-and-exit" );
635 636 637 638
    var_CreateGetBool( p_playlist, "random" );
    var_CreateGetBool( p_playlist, "repeat" );
    var_CreateGetBool( p_playlist, "loop" );
}