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( p_mi->i_input_id );
  75
  76     p_mi->i_input_id = -1;
  77
  78     if( !p_input_thread )
  79         return;
  80
  81
  82     /* No one is tracking this input_thread appart us. Destroy it */
  83     if( p_mi->b_own_its_input_thread )
  84     {
  85         var_DelCallback( p_input_thread, "state", input_state_changed, p_mi );
  86         var_DelCallback( p_input_thread, "seekable", input_state_changed, p_mi );
  87         var_DelCallback( p_input_thread, "pausable", input_state_changed, p_mi );
  88         var_DelCallback( p_input_thread, "intf-change", input_position_changed, p_mi );
  89         var_DelCallback( p_input_thread, "intf-change", input_time_changed, p_mi );
  90
  91         /* We owned this one */
  92         input_StopThread( p_input_thread );
  93
  94         var_Destroy( p_input_thread, "drawable" );
  95     }
  96     else
  97     {
  98         /* XXX: hack the playlist doesn't retain the input thread,
  99          * so we did it for the playlist (see _new_from_input_thread),
 100          * revert that here. This will be deleted with the playlist API */
 101         vlc_object_release( p_input_thread );
 102     }
 103
 104     /* release for previous vlc_object_get */
 105     vlc_object_release( p_input_thread );
 106 }
 107
 108 /*
 109  * Retrieve the input thread. Be sure to release the object
 110  * once you are done with it. (libvlc Internal)
 111  *
 112  * Object lock is held.
 113  */
 114 input_thread_t *libvlc_get_input_thread( libvlc_media_instance_t *p_mi,
 115                                          libvlc_exception_t *p_e )
 116 {
 117     input_thread_t *p_input_thread;
 118
 119     vlc_mutex_lock( &p_mi->object_lock );
 120
 121     if( !p_mi || p_mi->i_input_id == -1 )
 122     {
 123         vlc_mutex_unlock( &p_mi->object_lock );
 124         RAISENULL( "Input is NULL" );
 125     }
 126
 127     p_input_thread = (input_thread_t*)vlc_object_get( p_mi->i_input_id );
 128     if( !p_input_thread )
 129     {
 130         vlc_mutex_unlock( &p_mi->object_lock );
 131         RAISENULL( "Input does not exist" );
 132     }
 133
 134     vlc_mutex_unlock( &p_mi->object_lock );
 135     return p_input_thread;
 136 }
 137
 138 /*
 139  * input_state_changed (Private) (input var "state" Callback)
 140  */
 141 static int
 142 input_state_changed( vlc_object_t * p_this, char const * psz_cmd,
 143                      vlc_value_t oldval, vlc_value_t newval,
 144                      void * p_userdata )
 145 {
 146     VLC_UNUSED(oldval);
 147     libvlc_media_instance_t * p_mi = p_userdata;
 148     libvlc_event_t event;
 149     libvlc_event_type_t type = newval.i_int;
 150
 151     switch ( type )
 152     {
 153         case END_S:
 154             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
 155             event.type = libvlc_MediaInstanceReachedEnd;
 156             break;
 157         case PAUSE_S:
 158             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Playing, NULL);
 159             event.type = libvlc_MediaInstancePaused;
 160             break;
 161         case PLAYING_S:
 162             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Playing, NULL);
 163             event.type = libvlc_MediaInstancePlayed;
 164             break;
 165         case ERROR_S:
 166             libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_Error, NULL);
 167             event.type = libvlc_MediaInstanceEncounteredError;
 168             break;
 169         default:
 170             return VLC_SUCCESS;
 171     }
 172
 173     libvlc_event_send( p_mi->p_event_manager, &event );
 174     return VLC_SUCCESS;
 175 }
 176
 177 static int
 178 input_seakable_changed( vlc_object_t * p_this, char const * psz_cmd,
 179                         vlc_value_t oldval, vlc_value_t newval,
 180                         void * p_userdata )
 181 {
 182     VLC_UNUSED(oldval);
 183     libvlc_media_instance_t * p_mi = p_userdata;
 184     libvlc_event_t event;
 185
 186     libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
 187     event.type = libvlc_MediaInstanceSeekableChanged;
 188     event.u.media_instance_seekable_changed.new_seekable = newval.b_bool;
 189
 190     libvlc_event_send( p_mi->p_event_manager, &event );
 191     return VLC_SUCCESS;
 192 }
 193
 194 static int
 195 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
 196                         vlc_value_t oldval, vlc_value_t newval,
 197                         void * p_userdata )
 198 {
 199     VLC_UNUSED(oldval);
 200     libvlc_media_instance_t * p_mi = p_userdata;
 201     libvlc_event_t event;
 202
 203     libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL);
 204     event.type = libvlc_MediaInstancePausableChanged;
 205     event.u.media_instance_pausable_changed.new_pausable = newval.b_bool;
 206
 207     libvlc_event_send( p_mi->p_event_manager, &event );
 208     return VLC_SUCCESS;
 209 }
 210
 211 /*
 212  * input_position_changed (Private) (input var "intf-change" Callback)
 213  */
 214 static int
 215 input_position_changed( vlc_object_t * p_this, char const * psz_cmd,
 216                      vlc_value_t oldval, vlc_value_t newval,
 217                      void * p_userdata )
 218 {
 219     VLC_UNUSED(oldval);
 220     libvlc_media_instance_t * p_mi = p_userdata;
 221     vlc_value_t val;
 222
 223     if (!strncmp(psz_cmd, "intf", 4 /* "-change" no need to go further */))
 224     {
 225         input_thread_t * p_input = (input_thread_t *)p_this;
 226
 227         var_Get( p_input, "state", &val );
 228         if( val.i_int != PLAYING_S )
 229             return VLC_SUCCESS; /* Don't send the position while stopped */
 230
 231         var_Get( p_input, "position", &val );
 232     }
 233     else
 234         val.i_time = newval.i_time;
 235
 236     libvlc_event_t event;
 237     event.type = libvlc_MediaInstancePositionChanged;
 238     event.u.media_instance_position_changed.new_position = val.f_float;
 239
 240     libvlc_event_send( p_mi->p_event_manager, &event );
 241     return VLC_SUCCESS;
 242 }
 243
 244 /*
 245  * input_time_changed (Private) (input var "intf-change" Callback)
 246  */
 247 static int
 248 input_time_changed( vlc_object_t * p_this, char const * psz_cmd,
 249                      vlc_value_t oldval, vlc_value_t newval,
 250                      void * p_userdata )
 251 {
 252     VLC_UNUSED(oldval);
 253     libvlc_media_instance_t * p_mi = p_userdata;
 254     vlc_value_t val;
 255
 256     if (!strncmp(psz_cmd, "intf", 4 /* "-change" no need to go further */))
 257     {
 258         input_thread_t * p_input = (input_thread_t *)p_this;
 259
 260         var_Get( p_input, "state", &val );
 261         if( val.i_int != PLAYING_S )
 262             return VLC_SUCCESS; /* Don't send the position while stopped */
 263
 264         var_Get( p_input, "time", &val );
 265     }
 266     else
 267         val.i_time = newval.i_time;
 268
 269     libvlc_event_t event;
 270     event.type = libvlc_MediaInstanceTimeChanged;
 271     event.u.media_instance_time_changed.new_time = val.i_time;
 272     libvlc_event_send( p_mi->p_event_manager, &event );
 273     return VLC_SUCCESS;
 274 }
 275
 276 /**************************************************************************
 277  * Create a Media Instance object
 278  **************************************************************************/
 279 libvlc_media_instance_t *
 280 libvlc_media_instance_new( libvlc_instance_t * p_libvlc_instance,
 281                            libvlc_exception_t * p_e )
 282 {
 283     libvlc_media_instance_t * p_mi;
 284
 285     if( !p_libvlc_instance )
 286     {
 287         libvlc_exception_raise( p_e, "invalid libvlc instance" );
 288         return NULL;
 289     }
 290
 291     p_mi = malloc( sizeof(libvlc_media_instance_t) );
 292     p_mi->p_md = NULL;
 293     p_mi->drawable = 0;
 294     p_mi->p_libvlc_instance = p_libvlc_instance;
 295     p_mi->i_input_id = -1;
 296     /* refcount strategy:
 297      * - All items created by _new start with a refcount set to 1
 298      * - Accessor _release decrease the refcount by 1, if after that
 299      *   operation the refcount is 0, the object is destroyed.
 300      * - Accessor _retain increase the refcount by 1 (XXX: to implement) */
 301     p_mi->i_refcount = 1;
 302     p_mi->b_own_its_input_thread = VLC_TRUE;
 303     /* object_lock strategy:
 304      * - No lock held in constructor
 305      * - Lock when accessing all variable this lock is held
 306      * - Lock when attempting to destroy the object the lock is also held */
 307     vlc_mutex_init( p_mi->p_libvlc_instance->p_libvlc_int,
 308                     &p_mi->object_lock );
 309     p_mi->p_event_manager = libvlc_event_manager_new( p_mi,
 310             p_libvlc_instance, p_e );
 311     if( libvlc_exception_raised( p_e ) )
 312     {
 313         free( p_mi );
 314         return NULL;
 315     }
 316
 317     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 318             libvlc_MediaInstanceReachedEnd, p_e );
 319     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 320             libvlc_MediaInstanceEncounteredError, p_e );
 321     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 322             libvlc_MediaInstancePaused, p_e );
 323     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 324             libvlc_MediaInstancePlayed, p_e );
 325     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 326             libvlc_MediaInstancePositionChanged, p_e );
 327     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 328             libvlc_MediaInstanceTimeChanged, p_e );
 329     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 330             libvlc_MediaInstanceSeekableChanged, p_e );
 331     libvlc_event_manager_register_event_type( p_mi->p_event_manager,
 332             libvlc_MediaInstancePausableChanged, p_e );
 333
 334     return p_mi;
 335 }
 336
 337 /**************************************************************************
 338  * Create a Media Instance object with a media descriptor
 339  **************************************************************************/
 340 libvlc_media_instance_t *
 341 libvlc_media_instance_new_from_media_descriptor(
 342                                     libvlc_media_descriptor_t * p_md,
 343                                     libvlc_exception_t *p_e )
 344 {
 345     libvlc_media_instance_t * p_mi;
 346     p_mi = libvlc_media_instance_new( p_md->p_libvlc_instance, p_e );
 347
 348     if( !p_mi )
 349         return NULL;
 350
 351     libvlc_media_descriptor_retain( p_md );
 352     p_mi->p_md = p_md;
 353
 354     return p_mi;
 355 }
 356
 357 /**************************************************************************
 358  * Create a new media instance object from an input_thread (Libvlc Internal)
 359  **************************************************************************/
 360 libvlc_media_instance_t * libvlc_media_instance_new_from_input_thread(
 361                                    struct libvlc_instance_t *p_libvlc_instance,
 362                                    input_thread_t *p_input,
 363                                    libvlc_exception_t *p_e )
 364 {
 365     libvlc_media_instance_t * p_mi;
 366
 367     if( !p_input )
 368     {
 369         libvlc_exception_raise( p_e, "invalid input thread" );
 370         return NULL;
 371     }
 372
 373     p_mi = libvlc_media_instance_new( p_libvlc_instance, p_e );
 374
 375     if( !p_mi )
 376         return NULL;
 377
 378     p_mi->p_md = libvlc_media_descriptor_new_from_input_item(
 379                     p_libvlc_instance,
 380                     input_GetItem( p_input ), p_e );
 381
 382     if( !p_mi->p_md )
 383     {
 384         libvlc_media_instance_destroy( p_mi );
 385         return NULL;
 386     }
 387
 388     p_mi->i_input_id = p_input->i_object_id;
 389     p_mi->b_own_its_input_thread = VLC_FALSE;
 390
 391     /* will be released in media_instance_release() */
 392     vlc_object_yield( p_input );
 393
 394     /* XXX: Hack as the playlist doesn't yield the input thread we retain
 395      * the input for the playlist. (see corresponding hack in _release) */
 396     vlc_object_yield( p_input );
 397
 398     return p_mi;
 399 }
 400
 401 /**************************************************************************
 402  * Destroy a Media Instance object (libvlc internal)
 403  *
 404  * Warning: No lock held here, but hey, this is internal.
 405  **************************************************************************/
 406 void libvlc_media_instance_destroy( libvlc_media_instance_t *p_mi )
 407 {
 408     input_thread_t *p_input_thread;
 409     libvlc_exception_t p_e;
 410
 411     libvlc_exception_init( &p_e );
 412
 413     if( !p_mi )
 414         return;
 415
 416     p_input_thread = libvlc_get_input_thread( p_mi, &p_e );
 417
 418     if( libvlc_exception_raised( &p_e ) )
 419     {
 420         libvlc_event_manager_release( p_mi->p_event_manager );
 421         libvlc_exception_clear( &p_e );
 422         free( p_mi );
 423         return; /* no need to worry about no input thread */
 424     }
 425     vlc_mutex_destroy( &p_mi->object_lock );
 426
 427     input_DestroyThread( p_input_thread );
 428
 429     libvlc_media_descriptor_release( p_mi->p_md );
 430
 431     free( p_mi );
 432 }
 433
 434 /**************************************************************************
 435  * Release a Media Instance object
 436  **************************************************************************/
 437 void libvlc_media_instance_release( libvlc_media_instance_t *p_mi )
 438 {
 439     if( !p_mi )
 440         return;
 441
 442     vlc_mutex_lock( &p_mi->object_lock );
 443
 444     p_mi->i_refcount--;
 445
 446     if( p_mi->i_refcount > 0 )
 447     {
 448         vlc_mutex_unlock( &p_mi->object_lock );
 449         return;
 450     }
 451     vlc_mutex_unlock( &p_mi->object_lock );
 452     vlc_mutex_destroy( &p_mi->object_lock );
 453
 454     release_input_thread( p_mi );
 455
 456     libvlc_event_manager_release( p_mi->p_event_manager );
 457
 458     libvlc_media_descriptor_release( p_mi->p_md );
 459
 460     free( p_mi );
 461 }
 462
 463 /**************************************************************************
 464  * Retain a Media Instance object
 465  **************************************************************************/
 466 void libvlc_media_instance_retain( libvlc_media_instance_t *p_mi )
 467 {
 468     if( !p_mi )
 469         return;
 470
 471     p_mi->i_refcount++;
 472 }
 473
 474 /**************************************************************************
 475  * Set the Media descriptor associated with the instance
 476  **************************************************************************/
 477 void libvlc_media_instance_set_media_descriptor(
 478                             libvlc_media_instance_t *p_mi,
 479                             libvlc_media_descriptor_t *p_md,
 480                             libvlc_exception_t *p_e )
 481 {
 482     (void)p_e;
 483
 484     if( !p_mi )
 485         return;
 486
 487     vlc_mutex_lock( &p_mi->object_lock );
 488
 489     release_input_thread( p_mi );
 490
 491     if( p_mi->p_md )
 492         libvlc_media_descriptor_set_state( p_mi->p_md, libvlc_NothingSpecial, NULL );
 493
 494     libvlc_media_descriptor_release( p_mi->p_md );
 495
 496     if( !p_md )
 497     {
 498         p_mi->p_md = NULL;
 499         vlc_mutex_unlock( &p_mi->object_lock );
 500         return; /* It is ok to pass a NULL md */
 501     }
 502
 503     libvlc_media_descriptor_retain( p_md );
 504     p_mi->p_md = p_md;
 505
 506     /* The policy here is to ignore that we were created using a different
 507      * libvlc_instance, because we don't really care */
 508     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 509
 510     vlc_mutex_unlock( &p_mi->object_lock );
 511 }
 512
 513 /**************************************************************************
 514  * Get the Media descriptor associated with the instance
 515  **************************************************************************/
 516 libvlc_media_descriptor_t *
 517 libvlc_media_instance_get_media_descriptor(
 518                             libvlc_media_instance_t *p_mi,
 519                             libvlc_exception_t *p_e )
 520 {
 521     (void)p_e;
 522
 523     if( !p_mi->p_md )
 524         return NULL;
 525
 526     libvlc_media_descriptor_retain( p_mi->p_md );
 527     return p_mi->p_md;
 528 }
 529
 530 /**************************************************************************
 531  * Get the event Manager
 532  **************************************************************************/
 533 libvlc_event_manager_t *
 534 libvlc_media_instance_event_manager(
 535                             libvlc_media_instance_t *p_mi,
 536                             libvlc_exception_t *p_e )
 537 {
 538     (void)p_e;
 539
 540     return p_mi->p_event_manager;
 541 }
 542
 543 /**************************************************************************
 544  * Play
 545  **************************************************************************/
 546 void libvlc_media_instance_play( libvlc_media_instance_t *p_mi,
 547                                  libvlc_exception_t *p_e )
 548 {
 549     input_thread_t * p_input_thread;
 550
 551     if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
 552     {
 553         /* A thread alread exists, send it a play message */
 554         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 555         vlc_object_release( p_input_thread );
 556         return;
 557     }
 558
 559     /* Ignore previous exception */
 560     libvlc_exception_clear( p_e );
 561
 562     vlc_mutex_lock( &p_mi->object_lock );
 563
 564     if( !p_mi->p_md )
 565     {
 566         libvlc_exception_raise( p_e, "no associated media descriptor" );
 567         vlc_mutex_unlock( &p_mi->object_lock );
 568         return;
 569     }
 570
 571     p_mi->i_input_id = input_Read( p_mi->p_libvlc_instance->p_libvlc_int,
 572                                    p_mi->p_md->p_input_item, VLC_FALSE );
 573
 574     p_input_thread = (input_thread_t*)vlc_object_get( p_mi->i_input_id );
 575
 576     if( !p_input_thread )
 577     {
 578         return;
 579         vlc_mutex_unlock( &p_mi->object_lock );
 580     }
 581
 582     if( p_mi->drawable )
 583     {
 584         vlc_value_t val;
 585         val.i_int = p_mi->drawable;
 586         var_Create( p_input_thread, "drawable", VLC_VAR_DOINHERIT );
 587         var_Set( p_input_thread, "drawable", val );
 588     }
 589     var_AddCallback( p_input_thread, "state", input_state_changed, p_mi );
 590     var_AddCallback( p_input_thread, "seekable", input_seekable_changed, p_mi );
 591     var_AddCallback( p_input_thread, "pausable", input_pausable_changed, p_mi );
 592     var_AddCallback( p_input_thread, "intf-change", input_position_changed, p_mi );
 593     var_AddCallback( p_input_thread, "intf-change", input_time_changed, p_mi );
 594
 595     vlc_object_release( p_input_thread );
 596     vlc_mutex_unlock( &p_mi->object_lock );
 597 }
 598
 599 /**************************************************************************
 600  * Pause
 601  **************************************************************************/
 602 void libvlc_media_instance_pause( libvlc_media_instance_t *p_mi,
 603                                   libvlc_exception_t *p_e )
 604 {
 605     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
 606
 607     if( !p_input_thread )
 608         return;
 609
 610     int state = var_GetInteger( p_input_thread, "state" );
 611
 612     if( state == PLAYING_S )
 613     {
 614         if( libvlc_media_instance_can_pause( p_mi, p_e ) )
 615             input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 616         else
 617             libvlc_media_instance_stop( p_mi, p_e );
 618     }
 619     else
 620         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 621
 622     vlc_object_release( p_input_thread );
 623 }
 624
 625 /**************************************************************************
 626  * Stop
 627  **************************************************************************/
 628 void libvlc_media_instance_stop( libvlc_media_instance_t *p_mi,
 629                                  libvlc_exception_t *p_e )
 630 {
 631     if( p_mi->b_own_its_input_thread )
 632         release_input_thread( p_mi ); /* This will stop the input thread */
 633     else
 634     {
 635         input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
 636
 637         if( !p_input_thread )
 638             return;
 639
 640         input_StopThread( p_input_thread );
 641         vlc_object_release( p_input_thread );
 642     }
 643 }
 644
 645 /**************************************************************************
 646  * Set Drawable
 647  **************************************************************************/
 648 void libvlc_media_instance_set_drawable( libvlc_media_instance_t *p_mi,
 649                                          libvlc_drawable_t drawable,
 650                                          libvlc_exception_t *p_e )
 651 {
 652     (void)p_e;
 653     p_mi->drawable = drawable;
 654 }
 655
 656 /**************************************************************************
 657  * Get Drawable
 658  **************************************************************************/
 659 libvlc_drawable_t
 660 libvlc_media_instance_get_drawable ( libvlc_media_instance_t *p_mi, libvlc_exception_t *p_e )
 661 {
 662     (void)p_e;
 663     return p_mi->drawable;
 664 }
 665
 666 /**************************************************************************
 667  * Getters for stream information
 668  **************************************************************************/
 669 libvlc_time_t libvlc_media_instance_get_length(
 670                              libvlc_media_instance_t *p_mi,
 671                              libvlc_exception_t *p_e )
 672 {
 673     input_thread_t *p_input_thread;
 674     vlc_value_t val;
 675
 676     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 677     if( !p_input_thread )
 678         return -1;
 679
 680     var_Get( p_input_thread, "length", &val );
 681     vlc_object_release( p_input_thread );
 682
 683     return (val.i_time+500LL)/1000LL;
 684 }
 685
 686 libvlc_time_t libvlc_media_instance_get_time(
 687                                    libvlc_media_instance_t *p_mi,
 688                                    libvlc_exception_t *p_e )
 689 {
 690     input_thread_t *p_input_thread;
 691     vlc_value_t val;
 692
 693     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 694     if( !p_input_thread )
 695         return -1;
 696
 697     var_Get( p_input_thread , "time", &val );
 698     vlc_object_release( p_input_thread );
 699     return (val.i_time+500LL)/1000LL;
 700 }
 701
 702 void libvlc_media_instance_set_time(
 703                                  libvlc_media_instance_t *p_mi,
 704                                  libvlc_time_t time,
 705                                  libvlc_exception_t *p_e )
 706 {
 707     input_thread_t *p_input_thread;
 708     vlc_value_t value;
 709
 710     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 711     if( !p_input_thread )
 712         return;
 713
 714     value.i_time = time*1000LL;
 715     var_Set( p_input_thread, "time", value );
 716     vlc_object_release( p_input_thread );
 717 }
 718
 719 void libvlc_media_instance_set_position(
 720                                 libvlc_media_instance_t *p_mi,
 721                                 float position,
 722                                 libvlc_exception_t *p_e )
 723 {
 724     input_thread_t *p_input_thread;
 725     vlc_value_t val;
 726     val.f_float = position;
 727
 728     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 729     if( !p_input_thread )
 730         return;
 731
 732     var_Set( p_input_thread, "position", val );
 733     vlc_object_release( p_input_thread );
 734 }
 735
 736 float libvlc_media_instance_get_position(
 737                                  libvlc_media_instance_t *p_mi,
 738                                  libvlc_exception_t *p_e )
 739 {
 740     input_thread_t *p_input_thread;
 741     vlc_value_t val;
 742
 743     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 744     if( !p_input_thread )
 745         return -1.0;
 746
 747     var_Get( p_input_thread, "position", &val );
 748     vlc_object_release( p_input_thread );
 749
 750     return val.f_float;
 751 }
 752
 753 void libvlc_media_instance_set_chapter(
 754                                  libvlc_media_instance_t *p_mi,
 755                                  int chapter,
 756                                  libvlc_exception_t *p_e )
 757 {
 758     input_thread_t *p_input_thread;
 759     vlc_value_t val;
 760     val.i_int = chapter;
 761
 762     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 763     if( !p_input_thread )
 764         return;
 765
 766     var_Set( p_input_thread, "chapter", val );
 767     vlc_object_release( p_input_thread );
 768 }
 769
 770 int libvlc_media_instance_get_chapter(
 771                                  libvlc_media_instance_t *p_mi,
 772                                  libvlc_exception_t *p_e )
 773 {
 774     input_thread_t *p_input_thread;
 775     vlc_value_t val;
 776
 777     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 778     if( !p_input_thread )
 779         return -1.0;
 780
 781     var_Get( p_input_thread, "chapter", &val );
 782     vlc_object_release( p_input_thread );
 783
 784     return val.i_int;
 785 }
 786
 787 int libvlc_media_instance_get_chapter_count(
 788                                  libvlc_media_instance_t *p_mi,
 789                                  libvlc_exception_t *p_e )
 790 {
 791     input_thread_t *p_input_thread;
 792     vlc_value_t val;
 793
 794     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 795     if( !p_input_thread )
 796         return -1.0;
 797
 798     var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
 799     vlc_object_release( p_input_thread );
 800
 801     return val.i_int;
 802 }
 803
 804 float libvlc_media_instance_get_fps(
 805                                  libvlc_media_instance_t *p_mi,
 806                                  libvlc_exception_t *p_e)
 807 {
 808     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 809     double f_fps = 0.0;
 810
 811     if( p_input_thread )
 812     {
 813         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
 814             f_fps = 0.0;
 815         vlc_object_release( p_input_thread );
 816     }
 817     return f_fps;
 818 }
 819
 820 vlc_bool_t libvlc_media_instance_will_play(
 821                                  libvlc_media_instance_t *p_mi,
 822                                  libvlc_exception_t *p_e)
 823 {
 824     input_thread_t *p_input_thread =
 825                             libvlc_get_input_thread ( p_mi, p_e);
 826     if ( !p_input_thread )
 827         return VLC_FALSE;
 828
 829     if ( !p_input_thread->b_die && !p_input_thread->b_dead )
 830     {
 831         vlc_object_release( p_input_thread );
 832         return VLC_TRUE;
 833     }
 834     vlc_object_release( p_input_thread );
 835     return VLC_FALSE;
 836 }
 837
 838 void libvlc_media_instance_set_rate(
 839                                  libvlc_media_instance_t *p_mi,
 840                                  float rate,
 841                                  libvlc_exception_t *p_e )
 842 {
 843     input_thread_t *p_input_thread;
 844     vlc_value_t val;
 845
 846     if( rate <= 0 )
 847         RAISEVOID( "Rate value is invalid" );
 848
 849     val.i_int = 1000.0f/rate;
 850
 851     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 852     if ( !p_input_thread )
 853         return;
 854
 855     var_Set( p_input_thread, "rate", val );
 856     vlc_object_release( p_input_thread );
 857 }
 858
 859 float libvlc_media_instance_get_rate(
 860                                  libvlc_media_instance_t *p_mi,
 861                                  libvlc_exception_t *p_e )
 862 {
 863     input_thread_t *p_input_thread;
 864     vlc_value_t val;
 865
 866     p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
 867     if ( !p_input_thread )
 868         return -1.0;
 869
 870     var_Get( p_input_thread, "rate", &val );
 871     vlc_object_release( p_input_thread );
 872
 873     return (float)1000.0f/val.i_int;
 874 }
 875
 876 libvlc_state_t libvlc_media_instance_get_state(
 877                                  libvlc_media_instance_t *p_mi,
 878                                  libvlc_exception_t *p_e )
 879 {
 880     input_thread_t *p_input_thread;
 881     vlc_value_t val;
 882
 883     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 884     if ( !p_input_thread )
 885     {
 886         /* We do return the right value, no need to throw an exception */
 887         if( libvlc_exception_raised( p_e ) )
 888             libvlc_exception_clear( p_e );
 889         return libvlc_Stopped;
 890     }
 891
 892     var_Get( p_input_thread, "state", &val );
 893     vlc_object_release( p_input_thread );
 894
 895     return vlc_to_libvlc_state(val.i_int);
 896 }
 897
 898 vlc_bool_t libvlc_media_instance_is_seekable(
 899                                  libvlc_media_instance_t *p_mi,
 900                                  libvlc_exception_t *p_e )
 901 {
 902     input_thread_t *p_input_thread;
 903     vlc_value_t val;
 904
 905     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 906     if ( !p_input_thread )
 907     {
 908         /* We do return the right value, no need to throw an exception */
 909         if( libvlc_exception_raised( p_e ) )
 910             libvlc_exception_clear( p_e );
 911         return VLC_FALSE;
 912     }
 913     var_Get( p_input_thread, "seekable", &val );
 914     vlc_object_release( p_input_thread );
 915
 916     return val.b_bool;
 917 }
 918
 919 vlc_bool_t libvlc_media_instance_can_pause(
 920                                  libvlc_media_instance_t *p_mi,
 921                                  libvlc_exception_t *p_e )
 922 {
 923     input_thread_t *p_input_thread;
 924     vlc_value_t val;
 925
 926     p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
 927     if ( !p_input_thread )
 928     {
 929         /* We do return the right value, no need to throw an exception */
 930         if( libvlc_exception_raised( p_e ) )
 931             libvlc_exception_clear( p_e );
 932         return VLC_FALSE;
 933     }
 934     var_Get( p_input_thread, "can-pause", &val );
 935     vlc_object_release( p_input_thread );
 936
 937     return val.b_bool;
 938 }