git.sesse.net Git - vlc/blob - src/control/media_instance.c

   1 /*****************************************************************************
   2  * media_instance.c: Libvlc API Media Instance management functions
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include "libvlc_internal.h"
  25
  26 #include <vlc/libvlc.h>
  27 #include <vlc_demux.h>
  28 #include <vlc_input.h>
  29 #include "libvlc.h"
  30
  31 static int
  32 input_state_changed( vlc_object_t * p_this, char const * psz_cmd,
  33                      vlc_value_t oldval, vlc_value_t newval,
  34                      void * p_userdata );
  35 static int
  36 input_position_changed( vlc_object_t * p_this, char const * psz_cmd,
  37                      vlc_value_t oldval, vlc_value_t newval,
  38                      void * p_userdata );
  39 static int
  40 input_time_changed( vlc_object_t * p_this, char const * psz_cmd,
  41                      vlc_value_t oldval, vlc_value_t newval,
  42                      void * p_userdata );
  43
  44 static const libvlc_state_t vlc_to_libvlc_state_array[] =
  45 {
  46     [INIT_S]        = libvlc_Opening,
  47     [OPENING_S]     = libvlc_Opening,
  48     [BUFFERING_S]   = libvlc_Buffering,
  49     [PLAYING_S]     = libvlc_Playing,
  50     [PAUSE_S]       = libvlc_Paused,
  51     [END_S]         = libvlc_Ended,
  52     [ERROR_S]       = libvlc_Error,
  53 };
  54 static inline libvlc_state_t vlc_to_libvlc_state( int vlc_state )
  55 {
  56     if( vlc_state < 0 || vlc_state > 6 )
  57         return libvlc_Stopped;
  58
  59     return vlc_to_libvlc_state_array[vlc_state];
  60 }
  61
  62 /*
  63  * Release the associated input thread
  64  *
  65  * Object lock is NOT held.
  66  */
  67 static void release_input_thread( libvlc_media_instance_t *p_mi )
  68 {
  69     input_thread_t *p_input_thread;
  70
  71     if( !p_mi || p_mi->i_input_id == -1 )
  72         return;
  73
  74     p_input_thread = (input_thread_t*)vlc_object_get(
  75                                              p_mi->p_libvlc_instance->p_libvlc_int,
  76                                              p_mi->i_input_id );
  77
  78     p_mi->i_input_id = -1;
  79
  80     if( !p_input_thread )
  81         return;
  82
  83     /* release for previous vlc_object_get */
  84     vlc_object_release( p_input_thread );
  85
  86     /* release for initial p_input_thread yield (see _new()) */
  87     vlc_object_release( p_input_thread );
  88
  89     /* No one is tracking this input_thread appart us. Destroy it */
  90     if( p_mi->b_own_its_input_thread )
  91     {
  92         var_DelCallback( p_input_thread, "state", input_state_changed, p_mi );
  93         var_DelCallback( p_input_thread, "seekable", input_state_changed, p_mi );
  94         var_DelCallback( p_input_thread, "pausable", input_state_changed, p_mi );
  95         var_DelCallback( p_input_thread, "intf-change", input_position_changed, p_mi );
  96         var_DelCallback( p_input_thread, "intf-change", input_time_changed, p_mi );
  97         /* We owned this one */
  98         input_StopThread( p_input_thread );
  99         var_Destroy( p_input_thread, "drawable" );
 100         //input_DestroyThread( p_input_thread );
 101     }
 102     else
 103     {
 104         /* XXX: hack the playlist doesn't retain the input thread,
 105          * so we did it for the playlist (see _new_from_input_thread),
 106          * revert that here. This will be deleted with the playlist API */
 107         vlc_object_release( p_input_thread );
 108     }
 109
 110 }
 111
 112 /*
 113  * Retrieve the input thread. Be sure to release the object
 114  * once you are done with it. (libvlc Internal)
 115  *
 116  * Object lock is held.
 117  */
 118 input_thread_t *libvlc_get_input_thread( libvlc_media_instance_t *p_mi,
 119                                          libvlc_exception_t *p_e )
 120 {
 121     input_thread_t *p_input_thread;
 122
 123     vlc_mutex_lock( &p_mi->object_lock );
 124
 125     if( !p_mi || p_mi->i_input_id == -1 )
 126     {
 127         vlc_mutex_unlock( &p_mi->object_lock );
 128         RAISENULL( "Input is NULL" );
 129     }
 130
 131     p_input_thread = (input_thread_t*)vlc_object_get(
 132                                              p_mi->p_libvlc_instance->p_libvlc_int,
 133                                              p_mi->i_input_id );
 134     if( !p_input_thread )
 135     {
 136         vlc_mutex_unlock( &p_mi->object_lock );
 137         RAISENULL( "Input does not exist" );
 138     }
 139
 140     vlc_mutex_unlock( &p_mi->object_lock );
 141     return p_input_thread;
 142 }
 143
 144 /*
 145  * input_state_changed (Private) (input var "state" Callback)
 146  */
 147 static int
 148 input_state_changed( vlc_object_t * p_this, char const * psz_cmd,
 149                      vlc_value_t oldval, vlc_value_t newval,
 150                      void * p_userdata )
 151 {
 152     libvlc_media_instance_t * p_mi = p_userdata;
 153     libvlc_event_t event;
 154     libvlc_event_type_t type = newval.i_int;
 155
 156     if( strcmp( psz_cmd, "state" ) )
 157         type = var_GetInteger( p_this, "state" );
 158
 159     switch ( type )
 160     {
 161         case END_S:
 162             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
 163             event.type = libvlc_MediaInstanceReachedEnd;
 164             break;
 165         case PAUSE_S:
 166             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Playing, NULL);
 167             event.type = libvlc_MediaInstancePaused;
 168             break;
 169         case PLAYING_S:
 170             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Playing, NULL);
 171             event.type = libvlc_MediaInstancePlayed;
 172             break;
 173         case ERROR_S:
 174             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Error, NULL);
 175             event.type = libvlc_MediaInstanceEncounteredError;
 176             break;
 177         default:
 178             return VLC_SUCCESS;
 179     }
 180
 181     libvlc_event_send( p_mi->p_event_manager, &event );
 182     return VLC_SUCCESS;
 183 }
 184
 185 /*
 186  * input_position_changed (Private) (input var "intf-change" Callback)
 187  */
 188 static int
 189 input_position_changed( vlc_object_t * p_this, char const * psz_cmd,
 190                      vlc_value_t oldval, vlc_value_t newval,
 191                      void * p_userdata )
 192 {
 193     libvlc_media_instance_t * p_mi = p_userdata;
 194     vlc_value_t val;
 195
 196     if (!strncmp(psz_cmd, "intf", 4 /* "-change" no need to go further */))
 197     {
 198         input_thread_t * p_input = (input_thread_t *)p_this;
 199
 200         var_Get( p_input, "state", &val );
 201         if( val.i_int != PLAYING_S )
 202             return VLC_SUCCESS; /* Don't send the position while stopped */
 203
 204         var_Get( p_input, "position", &val );
 205     }
 206     else
 207         val.i_time = newval.i_time;
 208
 209     libvlc_event_t event;
 210     event.type = libvlc_MediaInstancePositionChanged;
 211     event.u.media_instance_position_changed.new_position = val.f_float;
 212
 213     libvlc_event_send( p_mi->p_event_manager, &event );
 214     return VLC_SUCCESS;
 215 }
 216
 217 /*
 218  * input_time_changed (Private) (input var "intf-change" Callback)
 219  */
 220 static int
 221 input_time_changed( vlc_object_t * p_this, char const * psz_cmd,
 222                      vlc_value_t oldval, vlc_value_t newval,
 223                      void * p_userdata )
 224 {
 225     libvlc_media_instance_t * p_mi = p_userdata;
 226     vlc_value_t val;
 227
 228     if (!strncmp(psz_cmd, "intf", 4 /* "-change" no need to go further */))
 229     {
 230         input_thread_t * p_input = (input_thread_t *)p_this;
 231
 232         var_Get( p_input, "state", &val );
 233         if( val.i_int != PLAYING_S )
 234             return VLC_SUCCESS; /* Don't send the position while stopped */
 235
 236         var_Get( p_input, "time", &val );
 237     }
 238     else
 239         val.i_time = newval.i_time;
 240
 241     libvlc_event_t event;
 242     event.type = libvlc_MediaInstanceTimeChanged;
 243     event.u.media_instance_time_changed.new_time = val.i_time;
 244     libvlc_event_send( p_mi->p_event_manager, &event );
 245     return VLC_SUCCESS;
 246 }
 247
 248 /**************************************************************************
 249  * Create a Media Instance object
 250  **************************************************************************/
 251 libvlc_media_instance_t *
 252 libvlc_media_instance_new( libvlc_instance_t * p_libvlc_instance,
 253                            libvlc_exception_t * p_e )
 254 {
 255     libvlc_media_instance_t * p_mi;
 256
 257     if( !p_libvlc_instance )
 258     {
 259         libvlc_exception_raise( p_e, "invalid libvlc instance" );
 260         return NULL;
 261     }
 262
 263     p_mi = malloc( sizeof(libvlc_media_instance_t) );
 264     p_mi->p_md = NULL;
 265     p_mi->drawable = 0;
 266     p_mi->p_libvlc_instance = p_libvlc_instance;
 267     p_mi->i_input_id = -1;
 268     /* refcount strategy:
 269      * - All items created by _new start with a refcount set to 1
 270      * - Accessor _release decrease the refcount by 1, if after that
 271      *   operation the refcount is 0, the object is destroyed.
 272      * - Accessor _retain increase the refcount by 1 (XXX: to implement) */
 273     p_mi->i_refcount = 1;
 274     p_mi->b_own_its_input_thread = VLC_TRUE;
 275     /* object_lock strategy:
 276      * - No lock held in constructor
 277      * - Lock when accessing all variable this lock is held
 278      * - Lock when attempting to destroy the object the lock is also held */
 279     vlc_mutex_init( p_mi->p_libvlc_instance->p_libvlc_int,
 280                     &p_mi->object_lock );
 281     p_mi->p_event_manager = libvlc_event_manager_new( p_mi,
 282             p_libvlc_instance, p_e );
 283     if( libvlc_exception_raised( p_e ) )
 284     {
 285         free( p_mi );
 286         return NULL;
 287     }
 288
 289     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 290             libvlc_MediaInstanceReachedEnd, p_e );
 291     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 292             libvlc_MediaInstanceEncounteredError, p_e );
 293     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 294             libvlc_MediaInstancePaused, p_e );
 295     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 296             libvlc_MediaInstancePlayed, p_e );
 297     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 298             libvlc_MediaInstancePositionChanged, p_e );
 299     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 300             libvlc_MediaInstanceTimeChanged, p_e );
 301
 302     return p_mi;
 303 }
 304
 305 /**************************************************************************
 306  * Create a Media Instance object with a media descriptor
 307  **************************************************************************/
 308 libvlc_media_instance_t *
 309 libvlc_media_instance_new_from_media_descriptor(
 310                                     libvlc_media_descriptor_t * p_md,
 311                                     libvlc_exception_t *p_e )
 312 {
 313     libvlc_media_instance_t * p_mi;
 314     p_mi = libvlc_media_instance_new( p_md->p_libvlc_instance, p_e );
 315
 316     if( !p_mi )
 317         return NULL;
 318
 319     libvlc_media_descriptor_retain( p_md );
 320     p_mi->p_md = p_md;
 321
 322     return p_mi;
 323 }
 324
 325 /**************************************************************************
 326  * Create a new media instance object from an input_thread (Libvlc Internal)
 327  **************************************************************************/
 328 libvlc_media_instance_t * libvlc_media_instance_new_from_input_thread(
 329                                    struct libvlc_instance_t *p_libvlc_instance,
 330                                    input_thread_t *p_input,
 331                                    libvlc_exception_t *p_e )
 332 {
 333     libvlc_media_instance_t * p_mi;
 334
 335     if( !p_input )
 336     {
 337         libvlc_exception_raise( p_e, "invalid input thread" );
 338         return NULL;
 339     }
 340
 341     p_mi = libvlc_media_instance_new( p_libvlc_instance, p_e );
 342
 343     if( !p_mi )
 344         return NULL;
 345
 346     p_mi->p_md = libvlc_media_descriptor_new_from_input_item(
 347                     p_libvlc_instance,
 348                     input_GetItem( p_input ), p_e );
 349
 350     if( !p_mi->p_md )
 351     {
 352         libvlc_media_instance_destroy( p_mi );
 353         return NULL;
 354     }
 355
 356     p_mi->i_input_id = p_input->i_object_id;
 357     p_mi->b_own_its_input_thread = VLC_FALSE;
 358
 359     /* will be released in media_instance_release() */
 360     vlc_object_yield( p_input );
 361
 362     /* XXX: Hack as the playlist doesn't yield the input thread we retain
 363      * the input for the playlist. (see corresponding hack in _release) */
 364     vlc_object_yield( p_input );
 365
 366     return p_mi;
 367 }
 368
 369 /**************************************************************************
 370  * Destroy a Media Instance object (libvlc internal)
 371  *
 372  * Warning: No lock held here, but hey, this is internal.
 373  **************************************************************************/
 374 void libvlc_media_instance_destroy( libvlc_media_instance_t *p_mi )
 375 {
 376     input_thread_t *p_input_thread;
 377     libvlc_exception_t p_e;
 378
 379     libvlc_exception_init( &p_e );
 380
 381     if( !p_mi )
 382         return;
 383
 384     p_input_thread = libvlc_get_input_thread( p_mi, &p_e );
 385
 386     if( libvlc_exception_raised( &p_e ) )
 387     {
 388         libvlc_event_manager_release( p_mi->p_event_manager );
 389         libvlc_exception_clear( &p_e );
 390         free( p_mi );
 391         return; /* no need to worry about no input thread */
 392     }
 393     vlc_mutex_destroy( &p_mi->object_lock );
 394
 395     input_DestroyThread( p_input_thread );
 396
 397     libvlc_media_descriptor_release( p_mi->p_md );
 398
 399     free( p_mi );
 400 }
 401
 402 /**************************************************************************
 403  * Release a Media Instance object
 404  **************************************************************************/
 405 void libvlc_media_instance_release( libvlc_media_instance_t *p_mi )
 406 {
 407     if( !p_mi )
 408         return;
 409
 410     vlc_mutex_lock( &p_mi->object_lock );
 411
 412     p_mi->i_refcount--;
 413
 414     if( p_mi->i_refcount > 0 )
 415     {
 416         vlc_mutex_unlock( &p_mi->object_lock );
 417         return;
 418     }
 419     vlc_mutex_unlock( &p_mi->object_lock );
 420     vlc_mutex_destroy( &p_mi->object_lock );
 421
 422     release_input_thread( p_mi );
 423
 424     libvlc_event_manager_release( p_mi->p_event_manager );
 425
 426     libvlc_media_descriptor_release( p_mi->p_md );
 427
 428     free( p_mi );
 429 }
 430
 431 /**************************************************************************
 432  * Retain a Media Instance object
 433  **************************************************************************/
 434 void libvlc_media_instance_retain( libvlc_media_instance_t *p_mi )
 435 {
 436     if( !p_mi )
 437         return;
 438
 439     p_mi->i_refcount++;
 440 }
 441
 442 /**************************************************************************
 443  * Set the Media descriptor associated with the instance
 444  **************************************************************************/
 445 void libvlc_media_instance_set_media_descriptor(
 446                             libvlc_media_instance_t *p_mi,
 447                             libvlc_media_descriptor_t *p_md,
 448                             libvlc_exception_t *p_e )
 449 {
 450     (void)p_e;
 451
 452     if( !p_mi )
 453         return;
 454
 455     vlc_mutex_lock( &p_mi->object_lock );
 456
 457     release_input_thread( p_mi );
 458
 459     if( p_mi->p_md )
 460         libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL );
 461
 462     libvlc_media_descriptor_release( p_mi->p_md );
 463
 464     if( !p_md )
 465     {
 466         p_mi->p_md = NULL;
 467         vlc_mutex_unlock( &p_mi->object_lock );
 468         return; /* It is ok to pass a NULL md */
 469     }
 470
 471     libvlc_media_descriptor_retain( p_md );
 472     p_mi->p_md = p_md;
 473
 474     /* The policy here is to ignore that we were created using a different
 475      * libvlc_instance, because we don't really care */
 476     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 477
 478     vlc_mutex_unlock( &p_mi->object_lock );
 479 }
 480
 481 /**************************************************************************
 482  * Get the Media descriptor associated with the instance
 483  **************************************************************************/
 484 libvlc_media_descriptor_t *
 485 libvlc_media_instance_get_media_descriptor(
 486                             libvlc_media_instance_t *p_mi,
 487                             libvlc_exception_t *p_e )
 488 {
 489     (void)p_e;
 490
 491     if( !p_mi->p_md )
 492         return NULL;
 493
 494     libvlc_media_descriptor_retain( p_mi->p_md );
 495     return p_mi->p_md;
 496 }
 497
 498 /**************************************************************************
 499  * Get the event Manager
 500  **************************************************************************/
 501 libvlc_event_manager_t *
 502 libvlc_media_instance_event_manager(
 503                             libvlc_media_instance_t *p_mi,
 504                             libvlc_exception_t *p_e )
 505 {
 506     (void)p_e;
 507
 508     return p_mi->p_event_manager;
 509 }
 510
 511 /**************************************************************************
 512  * Play
 513  **************************************************************************/
 514 void libvlc_media_instance_play( libvlc_media_instance_t *p_mi,
 515                                  libvlc_exception_t *p_e )
 516 {
 517     input_thread_t * p_input_thread;
 518
 519     if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
 520     {
 521         /* A thread alread exists, send it a play message */
 522         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 523         vlc_object_release( p_input_thread );
 524         return;
 525     }
 526
 527     /* Ignore previous exception */
 528     libvlc_exception_clear( p_e );
 529
 530     vlc_mutex_lock( &p_mi->object_lock );
 531
 532     if( !p_mi->p_md )
 533     {
 534         libvlc_exception_raise( p_e, "no associated media descriptor" );
 535         vlc_mutex_unlock( &p_mi->object_lock );
 536         return;
 537     }
 538
 539     p_mi->i_input_id = input_Read( p_mi->p_libvlc_instance->p_libvlc_int,
 540                                          p_mi->p_md->p_input_item, VLC_FALSE );
 541
 542     /* Released in _release() */
 543     p_input_thread = (input_thread_t*)vlc_object_get( p_mi->p_libvlc_instance->p_libvlc_int,
 544                                                       p_mi->i_input_id );
 545
 546     if( !p_input_thread )
 547     {
 548         return;
 549         vlc_mutex_unlock( &p_mi->object_lock );
 550     }
 551
 552     if( p_mi->drawable )
 553     {
 554         vlc_value_t val;
 555         val.i_int = p_mi->drawable;
 556         var_Create( p_input_thread, "drawable", VLC_VAR_DOINHERIT );
 557         var_Set( p_input_thread, "drawable", val );
 558     }
 559     var_AddCallback( p_input_thread, "state", input_state_changed, p_mi );
 560     var_AddCallback( p_input_thread, "seekable", input_state_changed, p_mi );
 561     var_AddCallback( p_input_thread, "pausable", input_state_changed, p_mi );
 562     var_AddCallback( p_input_thread, "intf-change", input_position_changed, p_mi );
 563     var_AddCallback( p_input_thread, "intf-change", input_time_changed, p_mi );
 564
 565     vlc_mutex_unlock( &p_mi->object_lock );
 566 }
 567
 568 /**************************************************************************
 569  * Pause
 570  **************************************************************************/
 571 void libvlc_media_instance_pause( libvlc_media_instance_t *p_mi,
 572                                   libvlc_exception_t *p_e )
 573 {
 574     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
 575
 576     if( !p_input_thread )
 577         return;
 578
 579     int state = var_GetInteger( p_input_thread, "state" );
 580
 581     if( state == PLAYING_S )
 582     {
 583         if( libvlc_media_instance_can_pause( p_mi, p_e ) )
 584             input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 585         else
 586             libvlc_media_instance_stop( p_mi, p_e );
 587     }
 588     else
 589         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 590
 591     vlc_object_release( p_input_thread );
 592 }
 593
 594 /**************************************************************************
 595  * Stop
 596  **************************************************************************/
 597 void libvlc_media_instance_stop( libvlc_media_instance_t *p_mi,
 598                                  libvlc_exception_t *p_e )
 599 {
 600     if( p_mi->b_own_its_input_thread )
 601         release_input_thread( p_mi ); /* This will stop the input thread */
 602     else
 603     {
 604         input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
 605
 606         if( !p_input_thread )
 607             return;
 608
 609         input_StopThread( p_input_thread );
 610         vlc_object_release( p_input_thread );
 611     }
 612 }
 613
 614 /**************************************************************************
 615  * Set Drawable
 616  **************************************************************************/
 617 void libvlc_media_instance_set_drawable( libvlc_media_instance_t *p_mi,
 618                                          libvlc_drawable_t drawable,
 619                                          libvlc_exception_t *p_e )
 620 {
 621     p_mi->drawable = drawable;
 622 }
 623
 624 /**************************************************************************
 625  * Get Drawable
 626  **************************************************************************/
 627 libvlc_drawable_t
 628 libvlc_media_instance_get_drawable ( libvlc_media_instance_t *p_mi, libvlc_exception_t *p_e )
 629 {
 630     return p_mi->drawable;
 631 }
 632
 633 /**************************************************************************
 634  * Getters for stream information
 635  **************************************************************************/
 636 libvlc_time_t libvlc_media_instance_get_length(
 637                              libvlc_media_instance_t *p_mi,
 638                              libvlc_exception_t *p_e )
 639 {
 640     input_thread_t *p_input_thread;
 641     vlc_value_t val;
 642
 643     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 644     if( !p_input_thread )
 645         return -1;
 646
 647     var_Get( p_input_thread, "length", &val );
 648     vlc_object_release( p_input_thread );
 649
 650     return (val.i_time+500LL)/1000LL;
 651 }
 652
 653 libvlc_time_t libvlc_media_instance_get_time(
 654                                    libvlc_media_instance_t *p_mi,
 655                                    libvlc_exception_t *p_e )
 656 {
 657     input_thread_t *p_input_thread;
 658     vlc_value_t val;
 659
 660     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 661     if( !p_input_thread )
 662         return -1;
 663
 664     var_Get( p_input_thread , "time", &val );
 665     vlc_object_release( p_input_thread );
 666     return (val.i_time+500LL)/1000LL;
 667 }
 668
 669 void libvlc_media_instance_set_time(
 670                                  libvlc_media_instance_t *p_mi,
 671                                  libvlc_time_t time,
 672                                  libvlc_exception_t *p_e )
 673 {
 674     input_thread_t *p_input_thread;
 675     vlc_value_t value;
 676
 677     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 678     if( !p_input_thread )
 679         return;
 680
 681     value.i_time = time*1000LL;
 682     var_Set( p_input_thread, "time", value );
 683     vlc_object_release( p_input_thread );
 684 }
 685
 686 void libvlc_media_instance_set_position(
 687                                 libvlc_media_instance_t *p_mi,
 688                                 float position,
 689                                 libvlc_exception_t *p_e )
 690 {
 691     input_thread_t *p_input_thread;
 692     vlc_value_t val;
 693     val.f_float = position;
 694
 695     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 696     if( !p_input_thread )
 697         return;
 698
 699     var_Set( p_input_thread, "position", val );
 700     vlc_object_release( p_input_thread );
 701 }
 702
 703 float libvlc_media_instance_get_position(
 704                                  libvlc_media_instance_t *p_mi,
 705                                  libvlc_exception_t *p_e )
 706 {
 707     input_thread_t *p_input_thread;
 708     vlc_value_t val;
 709
 710     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 711     if( !p_input_thread )
 712         return -1.0;
 713
 714     var_Get( p_input_thread, "position", &val );
 715     vlc_object_release( p_input_thread );
 716
 717     return val.f_float;
 718 }
 719
 720 void libvlc_media_instance_set_chapter(
 721                                  libvlc_media_instance_t *p_mi,
 722                                  int chapter,
 723                                  libvlc_exception_t *p_e )
 724 {
 725     input_thread_t *p_input_thread;
 726     vlc_value_t val;
 727     val.i_int = chapter;
 728
 729     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 730     if( !p_input_thread )
 731         return;
 732
 733     var_Set( p_input_thread, "chapter", val );
 734     vlc_object_release( p_input_thread );
 735 }
 736
 737 int libvlc_media_instance_get_chapter(
 738                                  libvlc_media_instance_t *p_mi,
 739                                  libvlc_exception_t *p_e )
 740 {
 741     input_thread_t *p_input_thread;
 742     vlc_value_t val;
 743
 744     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 745     if( !p_input_thread )
 746         return -1.0;
 747
 748     var_Get( p_input_thread, "chapter", &val );
 749     vlc_object_release( p_input_thread );
 750
 751     return val.i_int;
 752 }
 753
 754 int libvlc_media_instance_get_chapter_count(
 755                                  libvlc_media_instance_t *p_mi,
 756                                  libvlc_exception_t *p_e )
 757 {
 758     input_thread_t *p_input_thread;
 759     vlc_value_t val;
 760
 761     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 762     if( !p_input_thread )
 763         return -1.0;
 764
 765     var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
 766     vlc_object_release( p_input_thread );
 767
 768     return val.i_int;
 769 }
 770
 771 float libvlc_media_instance_get_fps(
 772                                  libvlc_media_instance_t *p_mi,
 773                                  libvlc_exception_t *p_e)
 774 {
 775     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 776     double f_fps = 0.0;
 777
 778     if( p_input_thread )
 779     {
 780         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
 781             f_fps = 0.0;
 782         vlc_object_release( p_input_thread );
 783     }
 784     return f_fps;
 785 }
 786
 787 vlc_bool_t libvlc_media_instance_will_play(
 788                                  libvlc_media_instance_t *p_mi,
 789                                  libvlc_exception_t *p_e)
 790 {
 791     input_thread_t *p_input_thread =
 792                             libvlc_get_input_thread ( p_mi, p_e);
 793     if ( !p_input_thread )
 794         return VLC_FALSE;
 795
 796     if ( !p_input_thread->b_die && !p_input_thread->b_dead )
 797     {
 798         vlc_object_release( p_input_thread );
 799         return VLC_TRUE;
 800     }
 801     vlc_object_release( p_input_thread );
 802     return VLC_FALSE;
 803 }
 804
 805 void libvlc_media_instance_set_rate(
 806                                  libvlc_media_instance_t *p_mi,
 807                                  float rate,
 808                                  libvlc_exception_t *p_e )
 809 {
 810     input_thread_t *p_input_thread;
 811     vlc_value_t val;
 812
 813     if( rate <= 0 )
 814         RAISEVOID( "Rate value is invalid" );
 815
 816     val.i_int = 1000.0f/rate;
 817
 818     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 819     if ( !p_input_thread )
 820         return;
 821
 822     var_Set( p_input_thread, "rate", val );
 823     vlc_object_release( p_input_thread );
 824 }
 825
 826 float libvlc_media_instance_get_rate(
 827                                  libvlc_media_instance_t *p_mi,
 828                                  libvlc_exception_t *p_e )
 829 {
 830     input_thread_t *p_input_thread;
 831     vlc_value_t val;
 832
 833     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 834     if ( !p_input_thread )
 835         return -1.0;
 836
 837     var_Get( p_input_thread, "rate", &val );
 838     vlc_object_release( p_input_thread );
 839
 840     return (float)1000.0f/val.i_int;
 841 }
 842
 843 libvlc_state_t libvlc_media_instance_get_state(
 844                                  libvlc_media_instance_t *p_mi,
 845                                  libvlc_exception_t *p_e )
 846 {
 847     input_thread_t *p_input_thread;
 848     vlc_value_t val;
 849
 850     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 851     if ( !p_input_thread )
 852     {
 853         /* We do return the right value, no need to throw an exception */
 854         if( libvlc_exception_raised( p_e ) )
 855             libvlc_exception_clear( p_e );
 856         return libvlc_Stopped;
 857     }
 858
 859     var_Get( p_input_thread, "state", &val );
 860     vlc_object_release( p_input_thread );
 861
 862     return vlc_to_libvlc_state(val.i_int);
 863 }
 864
 865 vlc_bool_t libvlc_media_instance_is_seekable(
 866                                  libvlc_media_instance_t *p_mi,
 867                                  libvlc_exception_t *p_e )
 868 {
 869     input_thread_t *p_input_thread;
 870     vlc_value_t val;
 871
 872     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 873     if ( !p_input_thread )
 874     {
 875         /* We do return the right value, no need to throw an exception */
 876         if( libvlc_exception_raised( p_e ) )
 877             libvlc_exception_clear( p_e );
 878         return VLC_FALSE;
 879     }
 880     var_Get( p_input_thread, "seekable", &val );
 881     vlc_object_release( p_input_thread );
 882
 883     return val.b_bool;
 884 }
 885
 886 vlc_bool_t libvlc_media_instance_can_pause(
 887                                  libvlc_media_instance_t *p_mi,
 888                                  libvlc_exception_t *p_e )
 889 {
 890     input_thread_t *p_input_thread;
 891     vlc_value_t val;
 892
 893     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 894     if ( !p_input_thread )
 895     {
 896         /* We do return the right value, no need to throw an exception */
 897         if( libvlc_exception_raised( p_e ) )
 898             libvlc_exception_clear( p_e );
 899         return VLC_FALSE;
 900     }
 901     var_Get( p_input_thread, "can-pause", &val );
 902     vlc_object_release( p_input_thread );
 903
 904     return val.b_bool;
 905 }