engine.c 24.4 KB
Newer Older
1 2 3
/*****************************************************************************
 * engine.c : Run the playlist and handle its control
 *****************************************************************************
4
 * Copyright (C) 1999-2007 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
 *
 * 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
#include <vlc/vlc.h>
Clément Stenac's avatar
Clément Stenac committed
26 27 28 29
#include <vlc_vout.h>
#include <vlc_sout.h>
#include <vlc_playlist.h>
#include <vlc_interface.h>
30
#include "playlist_internal.h"
Clément Stenac's avatar
Clément Stenac committed
31
#include "stream_output/stream_output.h" /* sout_DeleteInstance */
32 33 34 35 36 37

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

Clément Stenac's avatar
Clément Stenac committed
38 39 40
static int RandomCallback( vlc_object_t *p_this, char const *psz_cmd,
                           vlc_value_t oldval, vlc_value_t newval, void *a )
{
41 42
    (void)psz_cmd; (void)oldval; (void)newval; (void)a;

Clément Stenac's avatar
Clément Stenac committed
43
    ((playlist_t*)p_this)->b_reset_currently_playing = VLC_TRUE;
44
    playlist_Signal( ((playlist_t*)p_this) );
Clément Stenac's avatar
Clément Stenac committed
45 46 47
    return VLC_SUCCESS;
}

48 49 50 51 52 53 54 55 56 57
/**
 * 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;
58
    vlc_bool_t b_save;
59
    int i_tree;
60 61 62 63 64 65 66 67

    /* Allocate structure */
    p_playlist = vlc_object_create( p_parent, VLC_OBJECT_PLAYLIST );
    if( !p_playlist )
    {
        msg_Err( p_parent, "out of memory" );
        return NULL;
    }
68

69
    TAB_INIT( p_playlist->i_sds, p_playlist->pp_sds );
70

71
    p_parent->p_libvlc->p_playlist = p_playlist;
72 73 74 75 76 77 78 79 80

    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;

81 82
    p_playlist->gc_date = 0;
    p_playlist->b_cant_sleep = VLC_FALSE;
83

Clément Stenac's avatar
Clément Stenac committed
84 85 86 87
    ARRAY_INIT( p_playlist->items );
    ARRAY_INIT( p_playlist->all_items );
    ARRAY_INIT( p_playlist->input_items );
    ARRAY_INIT( p_playlist->current );
88

Clément Stenac's avatar
Clément Stenac committed
89 90
    p_playlist->i_current_index = 0;
    p_playlist->b_reset_currently_playing = VLC_TRUE;
91
    p_playlist->last_rebuild_date = 0;
Clément Stenac's avatar
Clément Stenac committed
92

93 94 95 96
    i_tree = var_CreateGetBool( p_playlist, "playlist-tree" );
    p_playlist->b_always_tree = (i_tree == 1);
    p_playlist->b_never_tree = (i_tree == 2);

97 98
    p_playlist->b_doing_ml = VLC_FALSE;

99 100 101
    p_playlist->b_auto_preparse =
                        var_CreateGetBool( p_playlist, "auto-preparse") ;

102
    p_playlist->p_root_category = playlist_NodeCreate( p_playlist, NULL, NULL,
103
                                    0, NULL );
104
    p_playlist->p_root_onelevel = playlist_NodeCreate( p_playlist, NULL, NULL,
105
                                    0, p_playlist->p_root_category->p_input );
106

107 108 109
    if( !p_playlist->p_root_category || !p_playlist->p_root_onelevel )
        return NULL;

110
    /* Create playlist and media library */
111 112 113 114
    playlist_NodesPairCreate( p_playlist, _( "Playlist" ),
                            &p_playlist->p_local_category,
                            &p_playlist->p_local_onelevel, VLC_FALSE );

115 116 117
    p_playlist->p_local_category->i_flags |= PLAYLIST_RO_FLAG;
    p_playlist->p_local_onelevel->i_flags |= PLAYLIST_RO_FLAG;

118 119 120 121 122
    if( !p_playlist->p_local_category || !p_playlist->p_local_onelevel ||
        !p_playlist->p_local_category->p_input ||
        !p_playlist->p_local_onelevel->p_input )
        return NULL;

123 124
    if( config_GetInt( p_playlist, "media-library") )
    {
125 126 127
        playlist_NodesPairCreate( p_playlist, _( "Media Library" ),
                            &p_playlist->p_ml_category,
                            &p_playlist->p_ml_onelevel, VLC_FALSE );
128 129 130 131

        if(!p_playlist->p_ml_category || !p_playlist->p_ml_onelevel)
            return NULL;

132 133 134 135 136 137 138
        p_playlist->p_ml_category->i_flags |= PLAYLIST_RO_FLAG;
        p_playlist->p_ml_onelevel->i_flags |= PLAYLIST_RO_FLAG;
    }
    else
    {
        p_playlist->p_ml_category = p_playlist->p_ml_onelevel = NULL;
    }
139 140 141

    /* Initial status */
    p_playlist->status.p_item = NULL;
142
    p_playlist->status.p_node = p_playlist->p_local_onelevel;
143 144 145 146 147 148
    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;

149 150
    b_save = p_playlist->b_auto_preparse;
    p_playlist->b_auto_preparse = VLC_FALSE;
151
    playlist_MLLoad( p_playlist );
152
    p_playlist->b_auto_preparse = VLC_TRUE;
153 154 155 156 157 158 159 160
    return p_playlist;
}

void playlist_Destroy( playlist_t *p_playlist )
{
    var_Destroy( p_playlist, "intf-change" );
    var_Destroy( p_playlist, "item-change" );
    var_Destroy( p_playlist, "playlist-current" );
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
161
    var_Destroy( p_playlist, "intf-popupmenu" );
162 163
    var_Destroy( p_playlist, "intf-show" );
    var_Destroy( p_playlist, "play-and-stop" );
164
    var_Destroy( p_playlist, "play-and-exit" );
165 166 167 168 169 170
    var_Destroy( p_playlist, "random" );
    var_Destroy( p_playlist, "repeat" );
    var_Destroy( p_playlist, "loop" );
    var_Destroy( p_playlist, "activity" );

    vlc_mutex_destroy( &p_playlist->gc_lock );
171
    vlc_object_detach( p_playlist );
172 173
    vlc_object_destroy( p_playlist );
}
174

175
/* Destroy remaining objects */
176
static void ObjectGarbageCollector( playlist_t *p_playlist, vlc_bool_t b_force )
177 178 179
{
    vlc_object_t *p_obj;

180
    if( !b_force )
181
    {
182 183 184 185 186 187 188
        if( mdate() - p_playlist->gc_date < 1000000 )
        {
            p_playlist->b_cant_sleep = VLC_TRUE;
            return;
        }
        else if( p_playlist->gc_date == 0 )
            return;
189
    }
190

191 192 193
    vlc_mutex_lock( &p_playlist->gc_lock );
    while( ( p_obj = vlc_object_find( p_playlist, VLC_OBJECT_VOUT,
                                                  FIND_CHILD ) ) )
194
    {
195
        if( p_obj->p_parent != VLC_OBJECT(p_playlist) )
196 197 198 199 200 201 202 203
        {
            vlc_object_release( p_obj );
            break;
        }
        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 );
204
    }
205 206
    while( ( p_obj = vlc_object_find( p_playlist, VLC_OBJECT_SOUT,
                                                  FIND_CHILD ) ) )
207
    {
208
        if( p_obj->p_parent != VLC_OBJECT(p_playlist) )
209
        {
210 211
            vlc_object_release( p_obj );
            break;
212
        }
213 214
        msg_Dbg( p_playlist, "garbage collector destroying 1 sout" );
        vlc_object_detach( p_obj );
215 216
        vlc_object_release( p_obj );
        sout_DeleteInstance( (sout_instance_t*)p_obj );
217
    }
218 219
    p_playlist->b_cant_sleep = VLC_FALSE;
    vlc_mutex_unlock( &p_playlist->gc_lock );
220 221 222 223 224 225
}

/** Main loop for the playlist */
void playlist_MainLoop( playlist_t *p_playlist )
{
    playlist_item_t *p_item = NULL;
226
    vlc_bool_t b_playexit = var_GetBool( p_playlist, "play-and-exit" );
227
    PL_LOCK;
228

229 230
    if( p_playlist->b_reset_currently_playing &&
        mdate() - p_playlist->last_rebuild_date > 30000 ) // 30 ms
231
    {
232 233 234
        ResetCurrentlyPlaying( p_playlist, var_GetBool( p_playlist, "random"),
                             p_playlist->status.p_item );
        p_playlist->last_rebuild_date = mdate();
235
    }
236

237
check_input:
238 239 240
    /* If there is an input, check that it doesn't need to die. */
    if( p_playlist->p_input )
    {
241 242 243 244 245 246
        if( p_playlist->request.b_request && !p_playlist->p_input->b_die )
        {
            PL_DEBUG( "incoming request - stopping current input" );
            input_StopThread( p_playlist->p_input );
        }

247 248 249 250 251
        /* This input is dead. Remove it ! */
        if( p_playlist->p_input->b_dead )
        {
            int i_activity;
            input_thread_t *p_input;
252
            PL_DEBUG( "dead input" );
253 254 255 256 257 258

            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. */
259
            PL_UNLOCK;
260 261 262 263

            /* Destroy input */
            input_DestroyThread( p_input );

264 265 266 267
            PL_LOCK;

            p_playlist->gc_date = mdate();
            p_playlist->b_cant_sleep = VLC_TRUE;
268 269 270 271

            if( p_playlist->status.p_item->i_flags
                & PLAYLIST_REMOVE_FLAG )
            {
272 273
                 PL_DEBUG( "%s was marked for deletion, deleting",
                                 PLI_NAME( p_playlist->status.p_item  ) );
274
                 playlist_ItemDelete( p_playlist->status.p_item );
275 276
                 if( p_playlist->request.p_item == p_playlist->status.p_item )
                     p_playlist->request.p_item = NULL;
277 278 279 280 281 282
                 p_playlist->status.p_item = NULL;
            }

            i_activity= var_GetInteger( p_playlist, "activity") ;
            var_SetInteger( p_playlist, "activity", i_activity -
                            DEFAULT_INPUT_ACTIVITY );
283
            goto check_input;
284 285 286 287
        }
        /* This input is dying, let it do */
        else if( p_playlist->p_input->b_die )
        {
288
            PL_DEBUG( "dying input" );
289
            PL_UNLOCK;
290
            msleep( INTF_IDLE_SLEEP );
291
            PL_LOCK;
292
            goto check_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
            input_StopThread( p_playlist->p_input );
300 301
            /* No need to wait here, we'll wait in the p_input->b_die case */
            goto check_input;
302 303 304
        }
        else if( p_playlist->p_input->i_state != INIT_S )
        {
305
            PL_UNLOCK;
306
            ObjectGarbageCollector( p_playlist, VLC_FALSE );
307
            PL_LOCK;
308 309 310 311 312 313 314 315 316 317 318 319 320 321 322
        }
    }
    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 ) )
         {
323
             msg_Dbg( p_playlist, "starting new item" );
324 325 326 327 328
             p_item = playlist_NextItem( p_playlist );

             if( p_item == NULL )
             {
                msg_Dbg( p_playlist, "nothing to play" );
329
                p_playlist->status.i_status = PLAYLIST_STOPPED;
330
                PL_UNLOCK;
331

332 333 334
                if( b_playexit == VLC_TRUE )
                {
                    msg_Info( p_playlist, "end of playlist, exiting" );
335
                    vlc_object_kill( p_playlist->p_libvlc );
336
                }
337
                ObjectGarbageCollector( p_playlist, VLC_TRUE );
338 339 340 341 342 343
                return;
             }
             playlist_PlayItem( p_playlist, p_item );
         }
         else
         {
344 345
            const vlc_bool_t b_gc_forced = p_playlist->status.i_status != PLAYLIST_STOPPED;

346 347 348 349 350 351 352 353
            p_playlist->status.i_status = PLAYLIST_STOPPED;
            if( p_playlist->status.p_item &&
                p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
            {
                PL_DEBUG( "deleting item marked for deletion" );
                playlist_ItemDelete( p_playlist->status.p_item );
                p_playlist->status.p_item = NULL;
            }
354

355 356
            /* Collect garbage */
            PL_UNLOCK;
357
            ObjectGarbageCollector( p_playlist, b_gc_forced );
358 359
            PL_LOCK;
        }
360
    }
361
    PL_UNLOCK;
362 363 364 365 366 367 368 369 370 371
}

/** 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 )
    {
372
        PL_LOCK;
373 374
        if( p_playlist->p_input == NULL )
        {
375
            PL_UNLOCK;
376 377 378 379 380 381 382 383 384 385
            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;
386
            PL_UNLOCK;
387 388 389 390 391 392 393 394 395 396 397 398 399

            /* Destroy input */
            input_DestroyThread( 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 );
400
            PL_UNLOCK;
401 402 403 404 405 406
            continue;
        }
        else
        {
            p_playlist->p_input->b_eof = 1;
        }
407
        PL_UNLOCK;
408 409 410 411 412 413 414 415

        msleep( INTF_IDLE_SLEEP );
    }

    /* close all remaining sout */
    while( ( p_obj = vlc_object_find( p_playlist,
                                      VLC_OBJECT_SOUT, FIND_CHILD ) ) )
    {
416
        vlc_object_detach( p_obj );
417 418 419 420 421 422 423 424 425 426 427 428
        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 );
    }
429

430
    while( p_playlist->i_sds )
431 432
    {
        playlist_ServicesDiscoveryRemove( p_playlist,
433
                                          p_playlist->pp_sds[0]->p_sd->psz_module );
434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457
    }

    playlist_MLDump( p_playlist );

    PL_LOCK;
    /* Go through all items, and simply free everything without caring
     * about the tree structure. Do not decref, it will be done by doing
     * the same thing on the input items array */
    FOREACH_ARRAY( playlist_item_t *p_del, p_playlist->all_items )
        free( p_del->pp_children );
        free( p_del );
    FOREACH_END();
    ARRAY_RESET( p_playlist->all_items );

    FOREACH_ARRAY( input_item_t *p_del, p_playlist->input_items )
        input_ItemClean( p_del );
        free( p_del );
    FOREACH_END();
    ARRAY_RESET( p_playlist->input_items );

    ARRAY_RESET( p_playlist->items );
    ARRAY_RESET( p_playlist->current );

    PL_UNLOCK;
458 459 460 461 462 463
}

/** Main loop for preparser queue */
void playlist_PreparseLoop( playlist_preparse_t *p_obj )
{
    playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
464
    input_item_t *p_current;
465
    int i_activity;
Clément Stenac's avatar
Clément Stenac committed
466
    uint32_t i_m, i_o;
467

468
    while( !p_playlist->b_die )
469
    {
470 471 472 473 474 475 476 477 478 479
        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;
            }
        }
480

481
        p_current = p_obj->pp_waiting[0];
482 483
        REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
        vlc_mutex_unlock( &p_obj->object_lock );
484

Clément Stenac's avatar
Clément Stenac committed
485
        PL_LOCK;
486 487
        if( p_current )
        {
488
            if( p_current->i_type == ITEM_TYPE_FILE )
489 490 491
            {
                stats_TimerStart( p_playlist, "Preparse run",
                                  STATS_TIMER_PREPARSE );
492
                /* Do not preparse if it is already done (like by playing it) */
493
                if( !input_item_IsPreparsed( p_current ) )
494 495 496 497 498
                {
                    PL_UNLOCK;
                    input_Preparse( p_playlist, p_current );
                    PL_LOCK;
                }
499
                stats_TimerStop( p_playlist, STATS_TIMER_PREPARSE );
500
                PL_UNLOCK;
501
                input_item_SetPreparsed( p_current, VLC_TRUE );
502
                var_SetInteger( p_playlist, "item-change", p_current->i_id );
503
                PL_LOCK;
504
            }
Clément Stenac's avatar
Clément Stenac committed
505
            /* If we haven't retrieved enough meta, add to secondary queue
506 507 508
             * which will run the "meta fetchers".
             * This only checks for meta, not for art
             * \todo don't do this for things we won't get meta for, like vids
509
             */
510 511
            char *psz_arturl = input_item_GetArtURL( p_current );
            char *psz_name = input_item_GetName( p_current );
512
            if( !input_MetaSatisfied( p_playlist, p_current, &i_m, &i_o ) )
Clément Stenac's avatar
Clément Stenac committed
513 514
            {
                preparse_item_t p;
515
                PL_DEBUG("need to fetch meta for %s", p_current->psz_name );
516 517
                p.p_item = p_current;
                p.b_fetch_art = VLC_FALSE;
518 519 520
                vlc_mutex_lock( &p_playlist->p_fetcher->object_lock );
                INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
                             p_playlist->p_fetcher->i_waiting,
521
                             p_playlist->p_fetcher->i_waiting, p);
522
                vlc_cond_signal( &p_playlist->p_fetcher->object_wait );
523
                vlc_mutex_unlock( &p_playlist->p_fetcher->object_lock );
524 525
            }
            /* We already have all needed meta, but we need art right now */
526
            else if( p_playlist->p_fetcher->i_art_policy == ALBUM_ART_ALL &&
527
                        ( !psz_arturl || strncmp( psz_arturl, "file://", 7 ) ) )
528 529
            {
                preparse_item_t p;
530
                PL_DEBUG("meta ok for %s, need to fetch art", psz_name );
531 532 533
                p.p_item = p_current;
                p.b_fetch_art = VLC_TRUE;
                vlc_mutex_lock( &p_playlist->p_fetcher->object_lock );
534 535 536
                INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
                             p_playlist->p_fetcher->i_waiting,
                             p_playlist->p_fetcher->i_waiting, p);
537
                vlc_cond_signal( &p_playlist->p_fetcher->object_wait );
538
                vlc_mutex_unlock( &p_playlist->p_fetcher->object_lock );
Clément Stenac's avatar
Clément Stenac committed
539
            }
540
            else
541 542
            {
                PL_DEBUG( "no fetch required for %s (art currently %s)",
543
                          psz_name, psz_arturl );
Clément Stenac's avatar
Clément Stenac committed
544
                vlc_gc_decref( p_current );
545
            }
546 547
            free( psz_name );
            free( psz_arturl );
548
            PL_UNLOCK;
549 550
        }
        else
551 552
            PL_UNLOCK;

553
        vlc_mutex_lock( &p_obj->object_lock );
554
        i_activity = var_GetInteger( p_playlist, "activity" );
555
        if( i_activity < 0 ) i_activity = 0;
556
        vlc_mutex_unlock( &p_obj->object_lock );
557
        /* Sleep at least 1ms */
558 559 560 561
        msleep( (i_activity+1) * 1000 );
    }
}

562
/** Main loop for secondary preparser queue */
563
void playlist_FetcherLoop( playlist_fetcher_t *p_obj )
564 565
{
    playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
566 567 568
    vlc_bool_t b_fetch_art;
    input_item_t *p_item;
    int i_activity;
569

570
    while( !p_playlist->b_die )
571
    {
572 573 574 575 576 577 578 579 580 581 582 583 584
        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;
585
        REMOVE_ELEM( p_obj->p_waiting, p_obj->i_waiting, 0 );
586
        vlc_mutex_unlock( &p_obj->object_lock );
587
        if( p_item )
588
        {
Clément Stenac's avatar
Clément Stenac committed
589 590
            if( !b_fetch_art )
            {
591 592 593 594 595 596 597 598
                /* If the user doesn't want us to fetch meta automatically 
                 * abort here. */
                if( p_playlist->p_fetcher->b_fetch_meta )
                {
                    input_MetaFetch( p_playlist, p_item );
                    var_SetInteger( p_playlist, "item-change", p_item->i_id );
                }

599
                /*  Fetch right now */
600
                if( p_playlist->p_fetcher->i_art_policy == ALBUM_ART_ALL )
601 602 603 604 605
                {
                    vlc_mutex_lock( &p_obj->object_lock );
                    preparse_item_t p;
                    p.p_item = p_item;
                    p.b_fetch_art = VLC_TRUE;
606 607
                    INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
                                 p_playlist->p_fetcher->i_waiting,
608
                                 0, p );
609
                    PL_DEBUG("meta fetched for %s, get art", p_item->psz_name);
610
                    vlc_mutex_unlock( &p_obj->object_lock );
611
                    continue;
612 613 614
                }
                else
                    vlc_gc_decref( p_item );
Clément Stenac's avatar
Clément Stenac committed
615 616
            }
            else
617
            {
618 619 620 621 622
                int i_ret;

                /* Check if it is not yet preparsed and if so wait for it (at most 0.5s)
                 * (This can happen if we fetch art on play)
                 * FIXME this doesn't work if we need to fetch meta before art ... */
623
                for( i_ret = 0; i_ret < 10 && !input_item_IsPreparsed( p_item ); i_ret++ )
624 625 626 627 628 629 630 631 632 633
                {
                    vlc_bool_t b_break;
                    PL_LOCK;
                    b_break = ( !p_playlist->p_input || input_GetItem(p_playlist->p_input) != p_item  ||
                                p_playlist->p_input->b_die || p_playlist->p_input->b_eof || p_playlist->p_input->b_error );
                    PL_UNLOCK;
                    if( b_break )
                        break;
                    msleep( 50000 );
                }
634

635
                i_ret = input_ArtFind( p_playlist, p_item );
636 637 638
                if( i_ret == 1 )
                {
                    PL_DEBUG("downloading art for %s", p_item->psz_name );
639
                    if( input_DownloadAndCacheArt( p_playlist, p_item ) )
640
                        input_item_SetArtNotFound( p_item, VLC_TRUE );
641
                    else {
642
                        input_item_SetArtFetched( p_item, VLC_TRUE );
643 644 645
                        var_SetInteger( p_playlist, "item-change",
                                        p_item->i_id );
                    }
646 647 648 649
                }
                else if( i_ret == 0 ) /* Was in cache */
                {
                    PL_DEBUG("found art for %s in cache", p_item->psz_name );
650
                    input_item_SetArtFetched( p_item, VLC_TRUE );
651
                    var_SetInteger( p_playlist, "item-change", p_item->i_id );
652 653 654 655
                }
                else
                {
                    PL_DEBUG("art not found for %s", p_item->psz_name );
656
                    input_item_SetArtNotFound( p_item, VLC_TRUE );
657
                }
658 659
                vlc_gc_decref( p_item );
           }
660
        }
661 662 663 664 665 666
        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 );
667 668 669
    }
}

670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702
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" );
703
    var_CreateGetBool( p_playlist, "play-and-exit" );
704 705 706
    var_CreateGetBool( p_playlist, "random" );
    var_CreateGetBool( p_playlist, "repeat" );
    var_CreateGetBool( p_playlist, "loop" );
Clément Stenac's avatar
Clément Stenac committed
707 708

    var_AddCallback( p_playlist, "random", RandomCallback, NULL );
709
}