thread.c 18.5 KB
Newer Older
1
/*****************************************************************************
2
 * thread.c : Playlist management functions
3
 *****************************************************************************
4
 * Copyright © 1999-2008 the VideoLAN team
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
 * $Id$
 *
 * 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.
 *****************************************************************************/
24 25 26 27
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

28 29
#include <assert.h>

30
#include <vlc_common.h>
Jean-Paul Saman's avatar
Jean-Paul Saman committed
31
#include <vlc_es.h>
32
#include <vlc_input.h>
Clément Stenac's avatar
Clément Stenac committed
33 34
#include <vlc_interface.h>
#include <vlc_playlist.h>
35
#include <vlc_rand.h>
36
#include "stream_output/stream_output.h"
37
#include "playlist_internal.h"
38 39 40 41

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
42
static void *Thread   ( void * );
43 44 45 46 47 48

/*****************************************************************************
 * Main functions for the global thread
 *****************************************************************************/

/**
49
 * Create the main playlist threads.
50 51 52 53 54 55
 * Additionally to the playlist, this thread controls :
 *    - Statistics
 *    - VLM
 * \param p_parent
 * \return an object with a started thread
 */
56
void playlist_Activate( playlist_t *p_playlist )
57
{
58 59
    /* */
    playlist_private_t *p_sys = pl_priv(p_playlist);
60

61
    /* Start the playlist thread */
62 63
    if( vlc_clone( &p_sys->thread, Thread, p_playlist,
                   VLC_THREAD_PRIORITY_LOW ) )
64 65 66
    {
        msg_Err( p_playlist, "cannot spawn playlist thread" );
    }
67
    msg_Dbg( p_playlist, "playlist threads correctly activated" );
68 69 70 71 72 73 74
}

void playlist_Deactivate( playlist_t *p_playlist )
{
    /* */
    playlist_private_t *p_sys = pl_priv(p_playlist);

75
    msg_Dbg( p_playlist, "deactivating the playlist" );
76

77
    PL_LOCK;
78
    vlc_object_kill( p_playlist );
79 80 81
    vlc_cond_signal( &p_sys->signal );
    PL_UNLOCK;

82
    vlc_join( p_sys->thread, NULL );
83
    assert( !p_sys->p_input );
84

85 86
    /* release input resources */
    if( p_sys->p_input_resource )
87 88 89 90
    {
        input_resource_Terminate( p_sys->p_input_resource );
        input_resource_Release( p_sys->p_input_resource );
    }
91
    p_sys->p_input_resource = NULL;
92

93 94
    if( var_InheritBool( p_playlist, "media-library" ) )
        playlist_MLDump( p_playlist );
95 96 97 98 99 100 101 102 103 104 105

    PL_LOCK;

    /* Release the current node */
    set_current_status_node( p_playlist, NULL );

    /* Release the current item */
    set_current_status_item( p_playlist, NULL );

    PL_UNLOCK;

106
    msg_Dbg( p_playlist, "playlist correctly deactivated" );
107 108
}

Laurent Aimar's avatar
Laurent Aimar committed
109 110 111 112 113 114 115 116 117 118
/* */

/* Input Callback */
static int InputEvent( vlc_object_t *p_this, char const *psz_cmd,
                       vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
    playlist_t *p_playlist = p_data;

    if( newval.i_int != INPUT_EVENT_STATE &&
119
        newval.i_int != INPUT_EVENT_DEAD )
Laurent Aimar's avatar
Laurent Aimar committed
120 121 122 123
        return VLC_SUCCESS;

    PL_LOCK;

124 125
    /* XXX: signaling while not changing any parameter... suspicious... */
    vlc_cond_signal( &pl_priv(p_playlist)->signal );
Laurent Aimar's avatar
Laurent Aimar committed
126 127 128 129 130

    PL_UNLOCK;
    return VLC_SUCCESS;
}

131 132 133 134 135 136 137 138
static void UpdateActivity( playlist_t *p_playlist, int i_delta )
{
    PL_ASSERT_LOCKED;

    const int i_activity = var_GetInteger( p_playlist, "activity" ) ;
    var_SetInteger( p_playlist, "activity", i_activity + i_delta );
}

Laurent Aimar's avatar
Laurent Aimar committed
139 140 141 142 143 144 145 146 147 148
/**
 * Synchronise the current index of the playlist
 * to match the index of the current item.
 *
 * \param p_playlist the playlist structure
 * \param p_cur the current playlist item
 * \return nothing
 */
static void ResyncCurrentIndex( playlist_t *p_playlist, playlist_item_t *p_cur )
{
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
    PL_ASSERT_LOCKED;

    PL_DEBUG( "resyncing on %s", PLI_NAME( p_cur ) );
    /* Simply resync index */
    int i;
    p_playlist->i_current_index = -1;
    for( i = 0 ; i< p_playlist->current.i_size; i++ )
    {
        if( ARRAY_VAL( p_playlist->current, i ) == p_cur )
        {
            p_playlist->i_current_index = i;
            break;
        }
    }
    PL_DEBUG( "%s is at %i", PLI_NAME( p_cur ), p_playlist->i_current_index );
Laurent Aimar's avatar
Laurent Aimar committed
164 165
}

166
static void ResetCurrentlyPlaying( playlist_t *p_playlist,
Laurent Aimar's avatar
Laurent Aimar committed
167 168
                                   playlist_item_t *p_cur )
{
169 170
    playlist_private_t *p_sys = pl_priv(p_playlist);

Laurent Aimar's avatar
Laurent Aimar committed
171 172 173
    stats_TimerStart( p_playlist, "Items array build",
                      STATS_TIMER_PLAYLIST_BUILD );
    PL_DEBUG( "rebuilding array of current - root %s",
174
              PLI_NAME( p_sys->status.p_node ) );
Laurent Aimar's avatar
Laurent Aimar committed
175 176
    ARRAY_RESET( p_playlist->current );
    p_playlist->i_current_index = -1;
177 178 179
    for( playlist_item_t *p_next = NULL; ; )
    {
        /** FIXME: this is *slow* */
Laurent Aimar's avatar
Laurent Aimar committed
180
        p_next = playlist_GetNextLeaf( p_playlist,
181
                                       p_sys->status.p_node,
Laurent Aimar's avatar
Laurent Aimar committed
182
                                       p_next, true, false );
183 184 185 186 187 188
        if( !p_next )
            break;

        if( p_next == p_cur )
            p_playlist->i_current_index = p_playlist->current.i_size;
        ARRAY_APPEND( p_playlist->current, p_next);
Laurent Aimar's avatar
Laurent Aimar committed
189 190 191
    }
    PL_DEBUG("rebuild done - %i items, index %i", p_playlist->current.i_size,
                                                  p_playlist->i_current_index);
192

193
    if( var_GetBool( p_playlist, "random" ) && ( p_playlist->current.i_size > 0 ) )
Laurent Aimar's avatar
Laurent Aimar committed
194 195
    {
        /* Shuffle the array */
196
        for( unsigned j = p_playlist->current.i_size - 1; j > 0; j-- )
Laurent Aimar's avatar
Laurent Aimar committed
197
        {
198
            unsigned i = vlc_lrand48() % (j+1); /* between 0 and j */
Laurent Aimar's avatar
Laurent Aimar committed
199 200 201 202 203 204 205
            playlist_item_t *p_tmp;
            /* swap the two items */
            p_tmp = ARRAY_VAL(p_playlist->current, i);
            ARRAY_VAL(p_playlist->current,i) = ARRAY_VAL(p_playlist->current,j);
            ARRAY_VAL(p_playlist->current,j) = p_tmp;
        }
    }
206
    p_sys->b_reset_currently_playing = false;
Laurent Aimar's avatar
Laurent Aimar committed
207 208 209 210 211 212 213 214 215 216 217 218 219
    stats_TimerStop( p_playlist, STATS_TIMER_PLAYLIST_BUILD );
}


/**
 * Start the input for an item
 *
 * \param p_playlist the playlist object
 * \param p_item the item to play
 * \return nothing
 */
static int PlayItem( playlist_t *p_playlist, playlist_item_t *p_item )
{
220
    playlist_private_t *p_sys = pl_priv(p_playlist);
Laurent Aimar's avatar
Laurent Aimar committed
221 222
    input_item_t *p_input = p_item->p_input;

223 224
    PL_ASSERT_LOCKED;

Laurent Aimar's avatar
Laurent Aimar committed
225 226 227 228 229
    msg_Dbg( p_playlist, "creating new input thread" );

    p_input->i_nb_played++;
    set_current_status_item( p_playlist, p_item );

230
    p_sys->status.i_status = PLAYLIST_RUNNING;
Laurent Aimar's avatar
Laurent Aimar committed
231

232
    UpdateActivity( p_playlist, DEFAULT_INPUT_ACTIVITY );
Laurent Aimar's avatar
Laurent Aimar committed
233

234
    assert( p_sys->p_input == NULL );
235

236 237
    if( !p_sys->p_input_resource )
        p_sys->p_input_resource = input_resource_New( VLC_OBJECT( p_playlist ) );
238
    input_thread_t *p_input_thread = input_Create( p_playlist, p_input, NULL, p_sys->p_input_resource );
239 240
    if( p_input_thread )
    {
241
        p_sys->p_input = p_input_thread;
242
        var_AddCallback( p_input_thread, "intf-event", InputEvent, p_playlist );
243

244 245
        var_SetAddress( p_playlist, "input-current", p_input_thread );

246 247 248 249 250
        if( input_Start( p_sys->p_input ) )
        {
            vlc_object_release( p_input_thread );
            p_sys->p_input = p_input_thread = NULL;
        }
251
    }
Laurent Aimar's avatar
Laurent Aimar committed
252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276

    char *psz_uri = input_item_GetURI( p_item->p_input );
    if( psz_uri && ( !strncmp( psz_uri, "directory:", 10 ) ||
                     !strncmp( psz_uri, "vlc:", 4 ) ) )
    {
        free( psz_uri );
        return VLC_SUCCESS;
    }
    free( psz_uri );

    /* TODO store art policy in playlist private data */
    if( var_GetInteger( p_playlist, "album-art" ) == ALBUM_ART_WHEN_PLAYED )
    {
        bool b_has_art;

        char *psz_arturl, *psz_name;
        psz_arturl = input_item_GetArtURL( p_input );
        psz_name = input_item_GetName( p_input );

        /* p_input->p_meta should not be null after a successfull CreateThread */
        b_has_art = !EMPTY_STR( psz_arturl );

        if( !b_has_art || strncmp( psz_arturl, "attachment://", 13 ) )
        {
            PL_DEBUG( "requesting art for %s", psz_name );
277
            playlist_AskForArtEnqueue( p_playlist, p_input );
Laurent Aimar's avatar
Laurent Aimar committed
278 279 280 281
        }
        free( psz_arturl );
        free( psz_name );
    }
282
    /* FIXME: this is not safe !!*/
Laurent Aimar's avatar
Laurent Aimar committed
283
    PL_UNLOCK;
284
    var_SetAddress( p_playlist, "item-current", p_input );
Laurent Aimar's avatar
Laurent Aimar committed
285 286 287 288 289 290 291 292 293 294 295 296
    PL_LOCK;

    return VLC_SUCCESS;
}

/**
 * Compute the next playlist item depending on
 * the playlist course mode (forward, backward, random, view,...).
 *
 * \param p_playlist the playlist object
 * \return nothing
 */
297
static playlist_item_t *NextItem( playlist_t *p_playlist )
Laurent Aimar's avatar
Laurent Aimar committed
298
{
299
    playlist_private_t *p_sys = pl_priv(p_playlist);
Laurent Aimar's avatar
Laurent Aimar committed
300 301 302 303 304 305 306 307 308 309 310
    playlist_item_t *p_new = NULL;

    /* Handle quickly a few special cases */
    /* No items to play */
    if( p_playlist->items.i_size == 0 )
    {
        msg_Info( p_playlist, "playlist is empty" );
        return NULL;
    }

    /* Start the real work */
311
    if( p_sys->request.b_request )
Laurent Aimar's avatar
Laurent Aimar committed
312
    {
313 314
        p_new = p_sys->request.p_item;
        int i_skip = p_sys->request.i_skip;
315
        PL_DEBUG( "processing request item: %s, node: %s, skip: %i",
316 317
                        PLI_NAME( p_sys->request.p_item ),
                        PLI_NAME( p_sys->request.p_node ), i_skip );
Laurent Aimar's avatar
Laurent Aimar committed
318

319 320
        if( p_sys->request.p_node &&
            p_sys->request.p_node != get_current_status_node( p_playlist ) )
Laurent Aimar's avatar
Laurent Aimar committed
321 322
        {

323 324 325
            set_current_status_node( p_playlist, p_sys->request.p_node );
            p_sys->request.p_node = NULL;
            p_sys->b_reset_currently_playing = true;
Laurent Aimar's avatar
Laurent Aimar committed
326 327 328 329 330 331 332 333 334
        }

        /* If we are asked for a node, go to it's first child */
        if( i_skip == 0 && ( p_new == NULL || p_new->i_children != -1 ) )
        {
            i_skip++;
            if( p_new != NULL )
            {
                p_new = playlist_GetNextLeaf( p_playlist, p_new, NULL, true, false );
335
                for( int i = 0; i < p_playlist->current.i_size; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
336 337 338 339 340 341 342 343 344 345
                {
                    if( p_new == ARRAY_VAL( p_playlist->current, i ) )
                    {
                        p_playlist->i_current_index = i;
                        i_skip = 0;
                    }
                }
            }
        }

346
        if( p_sys->b_reset_currently_playing )
Laurent Aimar's avatar
Laurent Aimar committed
347
            /* A bit too bad to reset twice ... */
348
            ResetCurrentlyPlaying( p_playlist, p_new );
Laurent Aimar's avatar
Laurent Aimar committed
349 350 351 352 353 354 355 356 357
        else if( p_new )
            ResyncCurrentIndex( p_playlist, p_new );
        else
            p_playlist->i_current_index = -1;

        if( p_playlist->current.i_size && (i_skip > 0) )
        {
            if( p_playlist->i_current_index < -1 )
                p_playlist->i_current_index = -1;
358
            for( int i = i_skip; i > 0 ; i-- )
Laurent Aimar's avatar
Laurent Aimar committed
359 360 361 362 363 364 365 366 367 368 369 370 371
            {
                p_playlist->i_current_index++;
                if( p_playlist->i_current_index >= p_playlist->current.i_size )
                {
                    PL_DEBUG( "looping - restarting at beginning of node" );
                    p_playlist->i_current_index = 0;
                }
            }
            p_new = ARRAY_VAL( p_playlist->current,
                               p_playlist->i_current_index );
        }
        else if( p_playlist->current.i_size && (i_skip < 0) )
        {
372
            for( int i = i_skip; i < 0 ; i++ )
Laurent Aimar's avatar
Laurent Aimar committed
373 374 375 376 377 378 379 380 381 382 383 384
            {
                p_playlist->i_current_index--;
                if( p_playlist->i_current_index <= -1 )
                {
                    PL_DEBUG( "looping - restarting at end of node" );
                    p_playlist->i_current_index = p_playlist->current.i_size-1;
                }
            }
            p_new = ARRAY_VAL( p_playlist->current,
                               p_playlist->i_current_index );
        }
        /* Clear the request */
385
        p_sys->request.b_request = false;
Laurent Aimar's avatar
Laurent Aimar committed
386 387 388 389
    }
    /* "Automatic" item change ( next ) */
    else
    {
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
        bool b_loop = var_GetBool( p_playlist, "loop" );
        bool b_repeat = var_GetBool( p_playlist, "repeat" );
        bool b_playstop = var_GetBool( p_playlist, "play-and-stop" );

        /* Repeat and play/stop */
        if( b_repeat && get_current_status_item( p_playlist ) )
        {
            msg_Dbg( p_playlist,"repeating item" );
            return get_current_status_item( p_playlist );
        }
        if( b_playstop )
        {
            msg_Dbg( p_playlist,"stopping (play and stop)" );
            return NULL;
        }

        /* */
        if( get_current_status_item( p_playlist ) )
        {
            playlist_item_t *p_parent = get_current_status_item( p_playlist );
            while( p_parent )
            {
                if( p_parent->i_flags & PLAYLIST_SKIP_FLAG )
                {
                    msg_Dbg( p_playlist, "blocking item, stopping") ;
                    return NULL;
                }
                p_parent = p_parent->p_parent;
            }
        }

Laurent Aimar's avatar
Laurent Aimar committed
421 422 423 424 425 426 427
        PL_DEBUG( "changing item without a request (current %i/%i)",
                  p_playlist->i_current_index, p_playlist->current.i_size );
        /* Cant go to next from current item */
        if( get_current_status_item( p_playlist ) &&
            get_current_status_item( p_playlist )->i_flags & PLAYLIST_SKIP_FLAG )
            return NULL;

428 429
        if( p_sys->b_reset_currently_playing )
            ResetCurrentlyPlaying( p_playlist,
Laurent Aimar's avatar
Laurent Aimar committed
430 431 432 433 434 435
                                   get_current_status_item( p_playlist ) );

        p_playlist->i_current_index++;
        assert( p_playlist->i_current_index <= p_playlist->current.i_size );
        if( p_playlist->i_current_index == p_playlist->current.i_size )
        {
436 437
            if( !b_loop || p_playlist->current.i_size == 0 )
                return NULL;
Laurent Aimar's avatar
Laurent Aimar committed
438 439 440
            p_playlist->i_current_index = 0;
        }
        PL_DEBUG( "using item %i", p_playlist->i_current_index );
441 442
        if ( p_playlist->current.i_size == 0 )
            return NULL;
Laurent Aimar's avatar
Laurent Aimar committed
443 444 445 446 447 448 449 450 451

        p_new = ARRAY_VAL( p_playlist->current, p_playlist->i_current_index );
        /* The new item can't be autoselected  */
        if( p_new != NULL && p_new->i_flags & PLAYLIST_SKIP_FLAG )
            return NULL;
    }
    return p_new;
}

452
static int LoopInput( playlist_t *p_playlist )
Laurent Aimar's avatar
Laurent Aimar committed
453
{
454 455
    playlist_private_t *p_sys = pl_priv(p_playlist);
    input_thread_t *p_input = p_sys->p_input;
Laurent Aimar's avatar
Laurent Aimar committed
456

457 458
    if( !p_input )
        return VLC_EGENERIC;
Laurent Aimar's avatar
Laurent Aimar committed
459

460
    if( ( p_sys->request.b_request || !vlc_object_alive( p_playlist ) ) && !p_input->b_die )
Laurent Aimar's avatar
Laurent Aimar committed
461
    {
462
        PL_DEBUG( "incoming request - stopping current input" );
463
        input_Stop( p_input, true );
Laurent Aimar's avatar
Laurent Aimar committed
464 465
    }

466 467
    /* This input is dead. Remove it ! */
    if( p_input->b_dead )
Laurent Aimar's avatar
Laurent Aimar committed
468
    {
469
        PL_DEBUG( "dead input" );
Laurent Aimar's avatar
Laurent Aimar committed
470

471 472 473
        PL_UNLOCK;
        /* We can unlock as we return VLC_EGENERIC (no event will be lost) */

474
        /* input_resource_t must be manipulated without playlist lock */
475
        if( !var_CreateGetBool( p_input, "sout-keep" ) )
476
            input_resource_TerminateSout( p_sys->p_input_resource );
Laurent Aimar's avatar
Laurent Aimar committed
477

478
        /* The DelCallback must be issued without playlist lock */
479
        var_DelCallback( p_input, "intf-event", InputEvent, p_playlist );
480

481
        PL_LOCK;
Laurent Aimar's avatar
Laurent Aimar committed
482

483 484 485
        p_sys->p_input = NULL;
        vlc_thread_join( p_input );
        vlc_object_release( p_input );
Laurent Aimar's avatar
Laurent Aimar committed
486

487
        UpdateActivity( p_playlist, -DEFAULT_INPUT_ACTIVITY );
Laurent Aimar's avatar
Laurent Aimar committed
488

489 490 491 492 493 494 495 496 497 498 499
        return VLC_EGENERIC;
    }
    /* This input is dying, let it do */
    else if( p_input->b_die )
    {
        PL_DEBUG( "dying input" );
    }
    /* This input has finished, ask it to die ! */
    else if( p_input->b_error || p_input->b_eof )
    {
        PL_DEBUG( "finished input" );
500
        input_Stop( p_input, false );
501 502 503
    }
    return VLC_SUCCESS;
}
504

505 506 507 508
static void LoopRequest( playlist_t *p_playlist )
{
    playlist_private_t *p_sys = pl_priv(p_playlist);
    assert( !p_sys->p_input );
Laurent Aimar's avatar
Laurent Aimar committed
509

510 511 512 513 514 515 516 517 518
    /* 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
    */
    const int i_status = p_sys->request.b_request ?
                         p_sys->request.i_status : p_sys->status.i_status;

519
    if( i_status == PLAYLIST_STOPPED || !vlc_object_alive( p_playlist ) )
520 521 522
    {
        p_sys->status.i_status = PLAYLIST_STOPPED;

523 524
        if( p_sys->p_input_resource &&
            input_resource_HasVout( p_sys->p_input_resource ) )
525 526 527 528 529
        {
            /* XXX We can unlock if we don't issue the wait as we will be
             * call again without anything else done between the calls */
            PL_UNLOCK;

530 531
            /* input_resource_t must be manipulated without playlist lock */
            input_resource_TerminateVout( p_sys->p_input_resource );
532

533 534 535 536 537
            PL_LOCK;
        }
        else
        {
            if( vlc_object_alive( p_playlist ) )
538
                vlc_cond_wait( &p_sys->signal, &p_sys->lock );
539
        }
540
        return;
Laurent Aimar's avatar
Laurent Aimar committed
541
    }
542 543 544

    playlist_item_t *p_item = NextItem( p_playlist );
    if( p_item )
Laurent Aimar's avatar
Laurent Aimar committed
545
    {
546
        msg_Dbg( p_playlist, "starting playback of the new playlist item" );
547 548 549
        PlayItem( p_playlist, p_item );
        return;
    }
Laurent Aimar's avatar
Laurent Aimar committed
550

551 552
    msg_Dbg( p_playlist, "nothing to play" );
    p_sys->status.i_status = PLAYLIST_STOPPED;
Laurent Aimar's avatar
Laurent Aimar committed
553

554 555 556
    if( var_GetBool( p_playlist, "play-and-exit" ) )
    {
        msg_Info( p_playlist, "end of playlist, exiting" );
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
557
        libvlc_Quit( p_playlist->p_libvlc );
Laurent Aimar's avatar
Laurent Aimar committed
558 559 560
    }
}

561 562 563
/**
 * Run the main control thread itself
 */
564
static void *Thread ( void *data )
565
{
566
    playlist_t *p_playlist = data;
567
    playlist_private_t *p_sys = pl_priv(p_playlist);
568

569
    playlist_Lock( p_playlist );
570
    while( vlc_object_alive( p_playlist ) || p_sys->p_input )
571
    {
572 573 574 575 576 577 578 579
        /* FIXME: what's that ! */
        if( p_sys->b_reset_currently_playing &&
            mdate() - p_sys->last_rebuild_date > 30000 ) // 30 ms
        {
            ResetCurrentlyPlaying( p_playlist,
                                   get_current_status_item( p_playlist ) );
            p_sys->last_rebuild_date = mdate();
        }
580

581 582
        /* If there is an input, check that it doesn't need to die. */
        while( !LoopInput( p_playlist ) )
583
            vlc_cond_wait( &p_sys->signal, &p_sys->lock );
584 585

        LoopRequest( p_playlist );
586
    }
587
    playlist_Unlock( p_playlist );
588

589
    return NULL;
590
}
591