git.sesse.net Git - vlc/blob - lib/media_player.c

   1 /*****************************************************************************
   2  * media_player.c: Libvlc API Media Instance management functions
   3  *****************************************************************************
   4  * Copyright (C) 2005-2011 VLC authors and VideoLAN
   5  *
   6  * Authors: Clément Stenac <zorglub@videolan.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include "config.h"
  25 #endif
  26
  27 #include <assert.h>
  28
  29 #include <vlc/libvlc.h>
  30 #include <vlc/libvlc_media.h>
  31 #include <vlc/libvlc_events.h>
  32
  33 #include <vlc_demux.h>
  34 #include <vlc_input.h>
  35 #include <vlc_vout.h>
  36 #include <vlc_keys.h>
  37
  38 #include "libvlc_internal.h"
  39 #include "media_internal.h" // libvlc_media_set_state()
  40 #include "media_player_internal.h"
  41
  42 /*
  43  * mapping of libvlc_navigate_mode_t to vlc_action_t
  44  */
  45 static const vlc_action_t libvlc_navigate_to_action[] =
  46 {
  47     ACTIONID_NAV_ACTIVATE,
  48     ACTIONID_NAV_UP,
  49     ACTIONID_NAV_DOWN,
  50     ACTIONID_NAV_LEFT,
  51     ACTIONID_NAV_RIGHT
  52 };
  53
  54 static const uint32_t libvlc_navigate_to_action_size =                        \
  55   sizeof( libvlc_navigate_to_action ) / sizeof( libvlc_navigate_to_action[0] );
  56
  57
  58 static int
  59 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
  60                         vlc_value_t oldval, vlc_value_t newval,
  61                         void * p_userdata );
  62 static int
  63 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
  64                         vlc_value_t oldval, vlc_value_t newval,
  65                         void * p_userdata );
  66 static int
  67 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
  68                      vlc_value_t oldval, vlc_value_t newval,
  69                      void * p_userdata );
  70
  71 static int
  72 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
  73                     vlc_value_t oldval, vlc_value_t newval, void *p_data );
  74
  75 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
  76
  77 /*
  78  * Shortcuts
  79  */
  80
  81 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
  82 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
  83 {
  84     libvlc_event_manager_register_event_type(mp->p_event_manager, type);
  85 }
  86
  87 /*
  88  * The input lock protects the input and input resource pointer.
  89  * It MUST NOT be used from callbacks.
  90  *
  91  * The object lock protects the reset, namely the media and the player state.
  92  * It can, and usually needs to be taken from callbacks.
  93  * The object lock can be acquired under the input lock... and consequently
  94  * the opposite order is STRICTLY PROHIBITED.
  95  */
  96 static inline void lock(libvlc_media_player_t *mp)
  97 {
  98     vlc_mutex_lock(&mp->object_lock);
  99 }
 100
 101 static inline void unlock(libvlc_media_player_t *mp)
 102 {
 103     vlc_mutex_unlock(&mp->object_lock);
 104 }
 105
 106 static inline void lock_input(libvlc_media_player_t *mp)
 107 {
 108     vlc_mutex_lock(&mp->input.lock);
 109 }
 110
 111 static inline void unlock_input(libvlc_media_player_t *mp)
 112 {
 113     vlc_mutex_unlock(&mp->input.lock);
 114 }
 115
 116 /*
 117  * Release the associated input thread.
 118  *
 119  * Object lock is NOT held.
 120  * Input lock is held or instance is being destroyed.
 121  */
 122 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
 123 {
 124     assert( p_mi );
 125
 126     input_thread_t *p_input_thread = p_mi->input.p_thread;
 127     if( !p_input_thread )
 128         return;
 129     p_mi->input.p_thread = NULL;
 130
 131     var_DelCallback( p_input_thread, "can-seek",
 132                      input_seekable_changed, p_mi );
 133     var_DelCallback( p_input_thread, "can-pause",
 134                     input_pausable_changed, p_mi );
 135     var_DelCallback( p_input_thread, "intf-event",
 136                      input_event_changed, p_mi );
 137
 138     /* We owned this one */
 139     input_Stop( p_input_thread, b_input_abort );
 140     input_Close( p_input_thread );
 141 }
 142
 143 /*
 144  * Retrieve the input thread. Be sure to release the object
 145  * once you are done with it. (libvlc Internal)
 146  */
 147 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
 148 {
 149     input_thread_t *p_input_thread;
 150
 151     assert( p_mi );
 152
 153     lock_input(p_mi);
 154     p_input_thread = p_mi->input.p_thread;
 155     if( p_input_thread )
 156         vlc_object_hold( p_input_thread );
 157     else
 158         libvlc_printerr( "No active input" );
 159     unlock_input(p_mi);
 160
 161     return p_input_thread;
 162 }
 163
 164 /*
 165  * Set the internal state of the media_player. (media player Internal)
 166  *
 167  * Function will lock the media_player.
 168  */
 169 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
 170     bool b_locked )
 171 {
 172     if(!b_locked)
 173         lock(p_mi);
 174     p_mi->state = state;
 175
 176     libvlc_media_t *media = p_mi->p_md;
 177     if (media)
 178         libvlc_media_retain(media);
 179
 180     if(!b_locked)
 181         unlock(p_mi);
 182
 183     if (media)
 184     {
 185         // Also set the state of the corresponding media
 186         // This is strictly for convenience.
 187         libvlc_media_set_state(media, state);
 188
 189         libvlc_media_release(media);
 190     }
 191 }
 192
 193 static int
 194 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
 195                         vlc_value_t oldval, vlc_value_t newval,
 196                         void * p_userdata )
 197 {
 198     VLC_UNUSED(oldval);
 199     VLC_UNUSED(p_this);
 200     VLC_UNUSED(psz_cmd);
 201     libvlc_media_player_t * p_mi = p_userdata;
 202     libvlc_event_t event;
 203
 204     event.type = libvlc_MediaPlayerSeekableChanged;
 205     event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
 206
 207     libvlc_event_send( p_mi->p_event_manager, &event );
 208     return VLC_SUCCESS;
 209 }
 210
 211 static int
 212 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
 213                         vlc_value_t oldval, vlc_value_t newval,
 214                         void * p_userdata )
 215 {
 216     VLC_UNUSED(oldval);
 217     VLC_UNUSED(p_this);
 218     VLC_UNUSED(psz_cmd);
 219     libvlc_media_player_t * p_mi = p_userdata;
 220     libvlc_event_t event;
 221
 222     event.type = libvlc_MediaPlayerPausableChanged;
 223     event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
 224
 225     libvlc_event_send( p_mi->p_event_manager, &event );
 226     return VLC_SUCCESS;
 227 }
 228
 229 static int
 230 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
 231                      vlc_value_t oldval, vlc_value_t newval,
 232                      void * p_userdata )
 233 {
 234     VLC_UNUSED(oldval);
 235     input_thread_t * p_input = (input_thread_t *)p_this;
 236     libvlc_media_player_t * p_mi = p_userdata;
 237     libvlc_event_t event;
 238
 239     assert( !strcmp( psz_cmd, "intf-event" ) );
 240
 241     if( newval.i_int == INPUT_EVENT_STATE )
 242     {
 243         libvlc_state_t libvlc_state;
 244
 245         switch ( var_GetInteger( p_input, "state" ) )
 246         {
 247             case INIT_S:
 248                 libvlc_state = libvlc_NothingSpecial;
 249                 event.type = libvlc_MediaPlayerNothingSpecial;
 250                 break;
 251             case OPENING_S:
 252                 libvlc_state = libvlc_Opening;
 253                 event.type = libvlc_MediaPlayerOpening;
 254                 break;
 255             case PLAYING_S:
 256                 libvlc_state = libvlc_Playing;
 257                 event.type = libvlc_MediaPlayerPlaying;
 258                 break;
 259             case PAUSE_S:
 260                 libvlc_state = libvlc_Paused;
 261                 event.type = libvlc_MediaPlayerPaused;
 262                 break;
 263             case END_S:
 264                 libvlc_state = libvlc_Ended;
 265                 event.type = libvlc_MediaPlayerEndReached;
 266                 break;
 267             case ERROR_S:
 268                 libvlc_state = libvlc_Error;
 269                 event.type = libvlc_MediaPlayerEncounteredError;
 270                 break;
 271
 272             default:
 273                 return VLC_SUCCESS;
 274         }
 275
 276         set_state( p_mi, libvlc_state, false );
 277         libvlc_event_send( p_mi->p_event_manager, &event );
 278     }
 279     else if( newval.i_int == INPUT_EVENT_ABORT )
 280     {
 281         libvlc_state_t libvlc_state = libvlc_Stopped;
 282         event.type = libvlc_MediaPlayerStopped;
 283
 284         set_state( p_mi, libvlc_state, false );
 285         libvlc_event_send( p_mi->p_event_manager, &event );
 286     }
 287     else if( newval.i_int == INPUT_EVENT_POSITION )
 288     {
 289         if( var_GetInteger( p_input, "state" ) != PLAYING_S )
 290             return VLC_SUCCESS; /* Don't send the position while stopped */
 291
 292         /* */
 293         event.type = libvlc_MediaPlayerPositionChanged;
 294         event.u.media_player_position_changed.new_position =
 295                                           var_GetFloat( p_input, "position" );
 296         libvlc_event_send( p_mi->p_event_manager, &event );
 297
 298         /* */
 299         event.type = libvlc_MediaPlayerTimeChanged;
 300         event.u.media_player_time_changed.new_time =
 301            from_mtime(var_GetTime( p_input, "time" ));
 302         libvlc_event_send( p_mi->p_event_manager, &event );
 303     }
 304     else if( newval.i_int == INPUT_EVENT_LENGTH )
 305     {
 306         event.type = libvlc_MediaPlayerLengthChanged;
 307         event.u.media_player_length_changed.new_length =
 308            from_mtime(var_GetTime( p_input, "length" ));
 309         libvlc_event_send( p_mi->p_event_manager, &event );
 310     }
 311     else if( newval.i_int == INPUT_EVENT_CACHE )
 312     {
 313         event.type = libvlc_MediaPlayerBuffering;
 314         event.u.media_player_buffering.new_cache = (int)(100 *
 315             var_GetFloat( p_input, "cache" ));
 316         libvlc_event_send( p_mi->p_event_manager, &event );
 317     }
 318     else if( newval.i_int == INPUT_EVENT_VOUT )
 319     {
 320         vout_thread_t **pp_vout;
 321         size_t i_vout;
 322         if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 323         {
 324             i_vout  = 0;
 325         }
 326         else
 327         {
 328             for( size_t i = 0; i < i_vout; i++ )
 329                 vlc_object_release( pp_vout[i] );
 330             free( pp_vout );
 331         }
 332
 333         event.type = libvlc_MediaPlayerVout;
 334         event.u.media_player_vout.new_count = i_vout;
 335         libvlc_event_send( p_mi->p_event_manager, &event );
 336     }
 337
 338     return VLC_SUCCESS;
 339 }
 340
 341 /**************************************************************************
 342  * Snapshot Taken Event.
 343  *
 344  * FIXME: This snapshot API interface makes no sense in media_player.
 345  *************************************************************************/
 346 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
 347                               vlc_value_t oldval, vlc_value_t newval, void *p_data )
 348 {
 349     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
 350
 351     libvlc_media_player_t *mp = p_data;
 352     libvlc_event_t event;
 353     event.type = libvlc_MediaPlayerSnapshotTaken;
 354     event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
 355     libvlc_event_send(mp->p_event_manager, &event);
 356
 357     return VLC_SUCCESS;
 358 }
 359
 360 /* */
 361 static void libvlc_media_player_destroy( libvlc_media_player_t * );
 362
 363
 364 /**************************************************************************
 365  * Create a Media Instance object.
 366  *
 367  * Refcount strategy:
 368  * - All items created by _new start with a refcount set to 1.
 369  * - Accessor _release decrease the refcount by 1, if after that
 370  *   operation the refcount is 0, the object is destroyed.
 371  * - Accessor _retain increase the refcount by 1 (XXX: to implement)
 372  *
 373  * Object locking strategy:
 374  * - No lock held while in constructor.
 375  * - When accessing any member variable this lock is held. (XXX who locks?)
 376  * - When attempting to destroy the object the lock is also held.
 377  **************************************************************************/
 378 libvlc_media_player_t *
 379 libvlc_media_player_new( libvlc_instance_t *instance )
 380 {
 381     libvlc_media_player_t * mp;
 382
 383     assert(instance);
 384
 385     mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
 386     if (unlikely(mp == NULL))
 387     {
 388         libvlc_printerr("Not enough memory");
 389         return NULL;
 390     }
 391
 392     /* Input */
 393     var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
 394
 395     /* Video */
 396     var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
 397     var_Create (mp, "window", VLC_VAR_STRING);
 398     var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
 399     var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
 400     var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
 401     var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
 402     var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
 403     var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
 404     var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 405     var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 406     var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 407     var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 408     var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
 409 #if defined (WIN32) || defined (__OS2__)
 410     var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
 411 #endif
 412 #ifdef __APPLE__
 413     var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
 414     var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
 415 #endif
 416
 417     var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
 418     var_SetBool (mp, "keyboard-events", true);
 419     var_Create (mp, "mouse-events", VLC_VAR_BOOL);
 420     var_SetBool (mp, "mouse-events", true);
 421
 422     var_Create (mp, "fullscreen", VLC_VAR_BOOL);
 423     var_Create (mp, "autoscale", VLC_VAR_BOOL);
 424     var_SetBool (mp, "autoscale", true);
 425     var_Create (mp, "scale", VLC_VAR_FLOAT);
 426     var_SetFloat (mp, "scale", 1.);
 427     var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
 428     var_Create (mp, "crop", VLC_VAR_STRING);
 429     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
 430     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 431
 432     var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
 433
 434     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
 435     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 436     var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 437     var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 438     var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 439     var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 440     var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 441     var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 442     var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 443
 444     var_Create (mp, "logo-file", VLC_VAR_STRING);
 445     var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 446     var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 447     var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 448     var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 449     var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 450     var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 451
 452     var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 453     var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 454     var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 455     var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 456     var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 457
 458      /* Audio */
 459     var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 460     var_Create (mp, "mute", VLC_VAR_BOOL);
 461     var_Create (mp, "volume", VLC_VAR_FLOAT);
 462     var_Create (mp, "corks", VLC_VAR_INTEGER);
 463     var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
 464     var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
 465     var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
 466     var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
 467     var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
 468     var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
 469     var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
 470     var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
 471     var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
 472     var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 473     var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 474     var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 475
 476     mp->p_md = NULL;
 477     mp->state = libvlc_NothingSpecial;
 478     mp->p_libvlc_instance = instance;
 479     mp->input.p_thread = NULL;
 480     mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
 481     if (unlikely(mp->input.p_resource == NULL))
 482     {
 483         vlc_object_release(mp);
 484         return NULL;
 485     }
 486     vlc_mutex_init (&mp->input.lock);
 487     mp->i_refcount = 1;
 488     mp->p_event_manager = libvlc_event_manager_new(mp, instance);
 489     if (unlikely(mp->p_event_manager == NULL))
 490     {
 491         input_resource_Release(mp->input.p_resource);
 492         vlc_object_release(mp);
 493         return NULL;
 494     }
 495     vlc_mutex_init(&mp->object_lock);
 496
 497     register_event(mp, NothingSpecial);
 498     register_event(mp, Opening);
 499     register_event(mp, Buffering);
 500     register_event(mp, Playing);
 501     register_event(mp, Paused);
 502     register_event(mp, Stopped);
 503     register_event(mp, Forward);
 504     register_event(mp, Backward);
 505     register_event(mp, EndReached);
 506     register_event(mp, EncounteredError);
 507     register_event(mp, SeekableChanged);
 508
 509     register_event(mp, PositionChanged);
 510     register_event(mp, TimeChanged);
 511     register_event(mp, LengthChanged);
 512     register_event(mp, TitleChanged);
 513     register_event(mp, PausableChanged);
 514
 515     register_event(mp, Vout);
 516
 517     /* Snapshot initialization */
 518     register_event(mp, SnapshotTaken);
 519
 520     register_event(mp, MediaChanged);
 521
 522     /* Attach a var callback to the global object to provide the glue between
 523      * vout_thread that generates the event and media_player that re-emits it
 524      * with its own event manager
 525      *
 526      * FIXME: It's unclear why we want to put this in public API, and why we
 527      * want to expose it in such a limiting and ugly way.
 528      */
 529     var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
 530
 531     libvlc_retain(instance);
 532     return mp;
 533 }
 534
 535 /**************************************************************************
 536  * Create a Media Instance object with a media descriptor.
 537  **************************************************************************/
 538 libvlc_media_player_t *
 539 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
 540 {
 541     libvlc_media_player_t * p_mi;
 542
 543     p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
 544     if( !p_mi )
 545         return NULL;
 546
 547     libvlc_media_retain( p_md );
 548     p_mi->p_md = p_md;
 549
 550     return p_mi;
 551 }
 552
 553 /**************************************************************************
 554  * Destroy a Media Instance object (libvlc internal)
 555  *
 556  * Warning: No lock held here, but hey, this is internal. Caller must lock.
 557  **************************************************************************/
 558 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
 559 {
 560     assert( p_mi );
 561
 562     /* Detach Callback from the main libvlc object */
 563     var_DelCallback( p_mi->p_libvlc,
 564                      "snapshot-file", snapshot_was_taken, p_mi );
 565
 566     /* No need for lock_input() because no other threads knows us anymore */
 567     if( p_mi->input.p_thread )
 568         release_input_thread(p_mi, true);
 569     input_resource_Terminate( p_mi->input.p_resource );
 570     input_resource_Release( p_mi->input.p_resource );
 571     vlc_mutex_destroy( &p_mi->input.lock );
 572
 573     libvlc_event_manager_release( p_mi->p_event_manager );
 574     libvlc_media_release( p_mi->p_md );
 575     vlc_mutex_destroy( &p_mi->object_lock );
 576
 577     libvlc_instance_t *instance = p_mi->p_libvlc_instance;
 578     vlc_object_release( p_mi );
 579     libvlc_release(instance);
 580 }
 581
 582 /**************************************************************************
 583  * Release a Media Instance object.
 584  *
 585  * Function does the locking.
 586  **************************************************************************/
 587 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
 588 {
 589     bool destroy;
 590
 591     assert( p_mi );
 592     lock(p_mi);
 593     destroy = !--p_mi->i_refcount;
 594     unlock(p_mi);
 595
 596     if( destroy )
 597         libvlc_media_player_destroy( p_mi );
 598 }
 599
 600 /**************************************************************************
 601  * Retain a Media Instance object.
 602  *
 603  * Caller must hold the lock.
 604  **************************************************************************/
 605 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
 606 {
 607     assert( p_mi );
 608
 609     lock(p_mi);
 610     p_mi->i_refcount++;
 611     unlock(p_mi);
 612 }
 613
 614 /**************************************************************************
 615  * Set the Media descriptor associated with the instance.
 616  *
 617  * Enter without lock -- function will lock the object.
 618  **************************************************************************/
 619 void libvlc_media_player_set_media(
 620                             libvlc_media_player_t *p_mi,
 621                             libvlc_media_t *p_md )
 622 {
 623     lock_input(p_mi);
 624
 625     /* FIXME I am not sure if it is a user request or on die(eof/error)
 626      * request here */
 627     release_input_thread( p_mi,
 628                           p_mi->input.p_thread &&
 629                           !p_mi->input.p_thread->b_eof &&
 630                           !p_mi->input.p_thread->b_error );
 631
 632     lock( p_mi );
 633     set_state( p_mi, libvlc_NothingSpecial, true );
 634     unlock_input( p_mi );
 635
 636     libvlc_media_release( p_mi->p_md );
 637
 638     if( !p_md )
 639     {
 640         p_mi->p_md = NULL;
 641         unlock(p_mi);
 642         return; /* It is ok to pass a NULL md */
 643     }
 644
 645     libvlc_media_retain( p_md );
 646     p_mi->p_md = p_md;
 647
 648     /* The policy here is to ignore that we were created using a different
 649      * libvlc_instance, because we don't really care */
 650     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 651
 652     unlock(p_mi);
 653
 654     /* Send an event for the newly available media */
 655     libvlc_event_t event;
 656     event.type = libvlc_MediaPlayerMediaChanged;
 657     event.u.media_player_media_changed.new_media = p_md;
 658     libvlc_event_send( p_mi->p_event_manager, &event );
 659
 660 }
 661
 662 /**************************************************************************
 663  * Get the Media descriptor associated with the instance.
 664  **************************************************************************/
 665 libvlc_media_t *
 666 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
 667 {
 668     libvlc_media_t *p_m;
 669
 670     lock(p_mi);
 671     p_m = p_mi->p_md;
 672     if( p_m )
 673         libvlc_media_retain( p_mi->p_md );
 674     unlock(p_mi);
 675     return p_mi->p_md;
 676 }
 677
 678 /**************************************************************************
 679  * Get the event Manager.
 680  **************************************************************************/
 681 libvlc_event_manager_t *
 682 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
 683 {
 684     return p_mi->p_event_manager;
 685 }
 686
 687 /**************************************************************************
 688  * Tell media player to start playing.
 689  **************************************************************************/
 690 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
 691 {
 692     lock_input( p_mi );
 693
 694     input_thread_t *p_input_thread = p_mi->input.p_thread;
 695     if( p_input_thread )
 696     {
 697         /* A thread already exists, send it a play message */
 698         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 699         unlock_input( p_mi );
 700         return 0;
 701     }
 702
 703     /* Ignore previous exception */
 704     lock(p_mi);
 705
 706     if( !p_mi->p_md )
 707     {
 708         unlock(p_mi);
 709         unlock_input( p_mi );
 710         libvlc_printerr( "No associated media descriptor" );
 711         return -1;
 712     }
 713
 714     p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
 715                                    p_mi->input.p_resource );
 716     unlock(p_mi);
 717     if( !p_input_thread )
 718     {
 719         unlock_input(p_mi);
 720         libvlc_printerr( "Not enough memory" );
 721         return -1;
 722     }
 723
 724     var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 725     var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 726     var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 727
 728     if( input_Start( p_input_thread ) )
 729     {
 730         unlock_input(p_mi);
 731         var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 732         var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 733         var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 734         vlc_object_release( p_input_thread );
 735         libvlc_printerr( "Input initialization failure" );
 736         return -1;
 737     }
 738     p_mi->input.p_thread = p_input_thread;
 739     unlock_input(p_mi);
 740     return 0;
 741 }
 742
 743 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
 744 {
 745     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
 746     if( !p_input_thread )
 747         return;
 748
 749     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 750     if( state == libvlc_Playing || state == libvlc_Buffering )
 751     {
 752         if( paused )
 753         {
 754             if( libvlc_media_player_can_pause( p_mi ) )
 755                 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 756             else
 757                 libvlc_media_player_stop( p_mi );
 758         }
 759     }
 760     else
 761     {
 762         if( !paused )
 763             input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 764     }
 765
 766     vlc_object_release( p_input_thread );
 767 }
 768
 769 /**************************************************************************
 770  * Toggle pause.
 771  **************************************************************************/
 772 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
 773 {
 774     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 775     bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
 776
 777     libvlc_media_player_set_pause( p_mi, playing );
 778 }
 779
 780 /**************************************************************************
 781  * Tells whether the media player is currently playing.
 782  *
 783  * Enter with lock held.
 784  **************************************************************************/
 785 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
 786 {
 787     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 788     return (libvlc_Playing == state) || (libvlc_Buffering == state);
 789 }
 790
 791 /**************************************************************************
 792  * Stop playing.
 793  **************************************************************************/
 794 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
 795 {
 796     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 797
 798     lock_input(p_mi);
 799     release_input_thread( p_mi, true ); /* This will stop the input thread */
 800
 801     /* Force to go to stopped state, in case we were in Ended, or Error
 802      * state. */
 803     if( state != libvlc_Stopped )
 804     {
 805         set_state( p_mi, libvlc_Stopped, false );
 806
 807         /* Construct and send the event */
 808         libvlc_event_t event;
 809         event.type = libvlc_MediaPlayerStopped;
 810         libvlc_event_send( p_mi->p_event_manager, &event );
 811     }
 812
 813     input_resource_Terminate( p_mi->input.p_resource );
 814     unlock_input(p_mi);
 815 }
 816
 817
 818 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
 819     void *(*lock_cb) (void *, void **),
 820     void (*unlock_cb) (void *, void *, void *const *),
 821     void (*display_cb) (void *, void *),
 822     void *opaque )
 823 {
 824     var_SetAddress( mp, "vmem-lock", lock_cb );
 825     var_SetAddress( mp, "vmem-unlock", unlock_cb );
 826     var_SetAddress( mp, "vmem-display", display_cb );
 827     var_SetAddress( mp, "vmem-data", opaque );
 828     var_SetString( mp, "vout", "vmem" );
 829 }
 830
 831 void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
 832                                         libvlc_video_format_cb setup,
 833                                         libvlc_video_cleanup_cb cleanup )
 834 {
 835     var_SetAddress( mp, "vmem-setup", setup );
 836     var_SetAddress( mp, "vmem-cleanup", cleanup );
 837 }
 838
 839 void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
 840                               unsigned width, unsigned height, unsigned pitch )
 841 {
 842     var_SetString( mp, "vmem-chroma", chroma );
 843     var_SetInteger( mp, "vmem-width", width );
 844     var_SetInteger( mp, "vmem-height", height );
 845     var_SetInteger( mp, "vmem-pitch", pitch );
 846 }
 847
 848 /**************************************************************************
 849  * set_nsobject
 850  **************************************************************************/
 851 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
 852                                         void * drawable )
 853 {
 854     assert (p_mi != NULL);
 855 #ifdef __APPLE__
 856     var_SetAddress (p_mi, "drawable-nsobject", drawable);
 857 #else
 858     (void) p_mi; (void)drawable;
 859 #endif
 860 }
 861
 862 /**************************************************************************
 863  * get_nsobject
 864  **************************************************************************/
 865 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
 866 {
 867     assert (p_mi != NULL);
 868 #ifdef __APPLE__
 869     return var_GetAddress (p_mi, "drawable-nsobject");
 870 #else
 871     return NULL;
 872 #endif
 873 }
 874
 875 /**************************************************************************
 876  * set_agl
 877  **************************************************************************/
 878 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
 879                                   uint32_t drawable )
 880 {
 881 #ifdef __APPLE__
 882     var_SetInteger (p_mi, "drawable-agl", drawable);
 883 #else
 884     (void) p_mi; (void)drawable;
 885 #endif
 886 }
 887
 888 /**************************************************************************
 889  * get_agl
 890  **************************************************************************/
 891 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
 892 {
 893     assert (p_mi != NULL);
 894 #ifdef __APPLE__
 895     return var_GetInteger (p_mi, "drawable-agl");
 896 #else
 897     return 0;
 898 #endif
 899 }
 900
 901 /**************************************************************************
 902  * set_xwindow
 903  **************************************************************************/
 904 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
 905                                       uint32_t drawable )
 906 {
 907     assert (p_mi != NULL);
 908
 909     var_SetString (p_mi, "vout", drawable ? "xid" : "any");
 910     var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
 911     var_SetInteger (p_mi, "drawable-xid", drawable);
 912 }
 913
 914 /**************************************************************************
 915  * get_xwindow
 916  **************************************************************************/
 917 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
 918 {
 919     return var_GetInteger (p_mi, "drawable-xid");
 920 }
 921
 922 /**************************************************************************
 923  * set_hwnd
 924  **************************************************************************/
 925 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
 926                                    void *drawable )
 927 {
 928     assert (p_mi != NULL);
 929 #if defined (WIN32) || defined (__OS2__)
 930     var_SetString (p_mi, "window",
 931                    (drawable != NULL) ? "embed-hwnd,any" : "");
 932     var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
 933 #else
 934     (void) p_mi; (void) drawable;
 935 #endif
 936 }
 937
 938 /**************************************************************************
 939  * get_hwnd
 940  **************************************************************************/
 941 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
 942 {
 943     assert (p_mi != NULL);
 944 #if defined (WIN32) || defined (__OS2__)
 945     return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
 946 #else
 947     return NULL;
 948 #endif
 949 }
 950
 951 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
 952                                  libvlc_audio_play_cb play_cb,
 953                                  libvlc_audio_pause_cb pause_cb,
 954                                  libvlc_audio_resume_cb resume_cb,
 955                                  libvlc_audio_flush_cb flush_cb,
 956                                  libvlc_audio_drain_cb drain_cb,
 957                                  void *opaque )
 958 {
 959     var_SetAddress( mp, "amem-play", play_cb );
 960     var_SetAddress( mp, "amem-pause", pause_cb );
 961     var_SetAddress( mp, "amem-resume", resume_cb );
 962     var_SetAddress( mp, "amem-flush", flush_cb );
 963     var_SetAddress( mp, "amem-drain", drain_cb );
 964     var_SetAddress( mp, "amem-data", opaque );
 965     var_SetString( mp, "aout", "amem,none" );
 966 }
 967
 968 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
 969                                        libvlc_audio_set_volume_cb cb )
 970 {
 971     var_SetAddress( mp, "amem-set-volume", cb );
 972 }
 973
 974 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
 975                                         libvlc_audio_setup_cb setup,
 976                                         libvlc_audio_cleanup_cb cleanup )
 977 {
 978     var_SetAddress( mp, "amem-setup", setup );
 979     var_SetAddress( mp, "amem-cleanup", cleanup );
 980 }
 981
 982 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
 983                               unsigned rate, unsigned channels )
 984 {
 985     var_SetString( mp, "amem-format", format );
 986     var_SetInteger( mp, "amem-rate", rate );
 987     var_SetInteger( mp, "amem-channels", channels );
 988 }
 989
 990
 991 /**************************************************************************
 992  * Getters for stream information
 993  **************************************************************************/
 994 libvlc_time_t libvlc_media_player_get_length(
 995                              libvlc_media_player_t *p_mi )
 996 {
 997     input_thread_t *p_input_thread;
 998     libvlc_time_t i_time;
 999
1000     p_input_thread = libvlc_get_input_thread ( p_mi );
1001     if( !p_input_thread )
1002         return -1;
1003
1004     i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1005     vlc_object_release( p_input_thread );
1006
1007     return i_time;
1008 }
1009
1010 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1011 {
1012     input_thread_t *p_input_thread;
1013     libvlc_time_t i_time;
1014
1015     p_input_thread = libvlc_get_input_thread ( p_mi );
1016     if( !p_input_thread )
1017         return -1;
1018
1019     i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1020     vlc_object_release( p_input_thread );
1021     return i_time;
1022 }
1023
1024 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1025                                    libvlc_time_t i_time )
1026 {
1027     input_thread_t *p_input_thread;
1028
1029     p_input_thread = libvlc_get_input_thread ( p_mi );
1030     if( !p_input_thread )
1031         return;
1032
1033     var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1034     vlc_object_release( p_input_thread );
1035 }
1036
1037 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1038                                        float position )
1039 {
1040     input_thread_t *p_input_thread;
1041
1042     p_input_thread = libvlc_get_input_thread ( p_mi );
1043     if( !p_input_thread )
1044         return;
1045
1046     var_SetFloat( p_input_thread, "position", position );
1047     vlc_object_release( p_input_thread );
1048 }
1049
1050 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1051 {
1052     input_thread_t *p_input_thread;
1053     float f_position;
1054
1055     p_input_thread = libvlc_get_input_thread ( p_mi );
1056     if( !p_input_thread )
1057         return -1.0;
1058
1059     f_position = var_GetFloat( p_input_thread, "position" );
1060     vlc_object_release( p_input_thread );
1061
1062     return f_position;
1063 }
1064
1065 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1066                                       int chapter )
1067 {
1068     input_thread_t *p_input_thread;
1069
1070     p_input_thread = libvlc_get_input_thread ( p_mi );
1071     if( !p_input_thread )
1072         return;
1073
1074     var_SetInteger( p_input_thread, "chapter", chapter );
1075     vlc_object_release( p_input_thread );
1076 }
1077
1078 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1079 {
1080     input_thread_t *p_input_thread;
1081     int i_chapter;
1082
1083     p_input_thread = libvlc_get_input_thread ( p_mi );
1084     if( !p_input_thread )
1085         return -1;
1086
1087     i_chapter = var_GetInteger( p_input_thread, "chapter" );
1088     vlc_object_release( p_input_thread );
1089
1090     return i_chapter;
1091 }
1092
1093 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1094 {
1095     input_thread_t *p_input_thread;
1096     vlc_value_t val;
1097
1098     p_input_thread = libvlc_get_input_thread ( p_mi );
1099     if( !p_input_thread )
1100         return -1;
1101
1102     var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1103     vlc_object_release( p_input_thread );
1104
1105     return val.i_int;
1106 }
1107
1108 int libvlc_media_player_get_chapter_count_for_title(
1109                                  libvlc_media_player_t *p_mi,
1110                                  int i_title )
1111 {
1112     input_thread_t *p_input_thread;
1113     vlc_value_t val;
1114
1115     p_input_thread = libvlc_get_input_thread ( p_mi );
1116     if( !p_input_thread )
1117         return -1;
1118
1119     char *psz_name;
1120     if( asprintf( &psz_name,  "title %2i", i_title ) == -1 )
1121     {
1122         vlc_object_release( p_input_thread );
1123         return -1;
1124     }
1125     var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1126     vlc_object_release( p_input_thread );
1127     free( psz_name );
1128
1129     return val.i_int;
1130 }
1131
1132 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1133                                     int i_title )
1134 {
1135     input_thread_t *p_input_thread;
1136
1137     p_input_thread = libvlc_get_input_thread ( p_mi );
1138     if( !p_input_thread )
1139         return;
1140
1141     var_SetInteger( p_input_thread, "title", i_title );
1142     vlc_object_release( p_input_thread );
1143
1144     //send event
1145     libvlc_event_t event;
1146     event.type = libvlc_MediaPlayerTitleChanged;
1147     event.u.media_player_title_changed.new_title = i_title;
1148     libvlc_event_send( p_mi->p_event_manager, &event );
1149 }
1150
1151 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1152 {
1153     input_thread_t *p_input_thread;
1154     int i_title;
1155
1156     p_input_thread = libvlc_get_input_thread ( p_mi );
1157     if( !p_input_thread )
1158         return -1;
1159
1160     i_title = var_GetInteger( p_input_thread, "title" );
1161     vlc_object_release( p_input_thread );
1162
1163     return i_title;
1164 }
1165
1166 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1167 {
1168     input_thread_t *p_input_thread;
1169     vlc_value_t val;
1170
1171     p_input_thread = libvlc_get_input_thread ( p_mi );
1172     if( !p_input_thread )
1173         return -1;
1174
1175     var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1176     vlc_object_release( p_input_thread );
1177
1178     return val.i_int;
1179 }
1180
1181 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1182 {
1183     input_thread_t *p_input_thread;
1184
1185     p_input_thread = libvlc_get_input_thread ( p_mi );
1186     if( !p_input_thread )
1187         return;
1188
1189     int i_type = var_Type( p_input_thread, "next-chapter" );
1190     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1191                             "next-chapter":"next-title" );
1192
1193     vlc_object_release( p_input_thread );
1194 }
1195
1196 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1197 {
1198     input_thread_t *p_input_thread;
1199
1200     p_input_thread = libvlc_get_input_thread ( p_mi );
1201     if( !p_input_thread )
1202         return;
1203
1204     int i_type = var_Type( p_input_thread, "next-chapter" );
1205     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1206                             "prev-chapter":"prev-title" );
1207
1208     vlc_object_release( p_input_thread );
1209 }
1210
1211 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1212 {
1213     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1214     double f_fps = 0.0;
1215
1216     if( p_input_thread )
1217     {
1218         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1219             f_fps = 0.0;
1220         vlc_object_release( p_input_thread );
1221     }
1222     return f_fps;
1223 }
1224
1225 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1226 {
1227     bool b_will_play;
1228     input_thread_t *p_input_thread =
1229                             libvlc_get_input_thread ( p_mi );
1230     if ( !p_input_thread )
1231         return false;
1232
1233     b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1234     vlc_object_release( p_input_thread );
1235
1236     return b_will_play;
1237 }
1238
1239 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1240 {
1241     if (rate < 0.)
1242     {
1243         libvlc_printerr ("Playing backward not supported");
1244         return -1;
1245     }
1246
1247     var_SetFloat (p_mi, "rate", rate);
1248
1249     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1250     if( !p_input_thread )
1251         return 0;
1252     var_SetFloat( p_input_thread, "rate", rate );
1253     vlc_object_release( p_input_thread );
1254     return 0;
1255 }
1256
1257 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1258 {
1259     return var_GetFloat (p_mi, "rate");
1260 }
1261
1262 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1263 {
1264     lock(p_mi);
1265     libvlc_state_t state = p_mi->state;
1266     unlock(p_mi);
1267     return state;
1268 }
1269
1270 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1271 {
1272     input_thread_t *p_input_thread;
1273     bool b_seekable;
1274
1275     p_input_thread = libvlc_get_input_thread ( p_mi );
1276     if ( !p_input_thread )
1277         return false;
1278     b_seekable = var_GetBool( p_input_thread, "can-seek" );
1279     vlc_object_release( p_input_thread );
1280
1281     return b_seekable;
1282 }
1283
1284 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1285                                    unsigned navigate )
1286 {
1287     input_thread_t *p_input_thread;
1288
1289     if ( navigate >= libvlc_navigate_to_action_size)
1290       return;
1291
1292     p_input_thread = libvlc_get_input_thread ( p_mi );
1293     if ( !p_input_thread )
1294       return;
1295
1296     var_SetInteger( p_mi->p_libvlc_instance->p_libvlc_int,
1297                     "key-action", libvlc_navigate_to_action[navigate] );
1298
1299     vlc_object_release( p_input_thread );
1300 }
1301
1302 /* internal function, used by audio, video */
1303 libvlc_track_description_t *
1304         libvlc_get_track_description( libvlc_media_player_t *p_mi,
1305                                       const char *psz_variable )
1306 {
1307     input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1308     libvlc_track_description_t *p_track_description = NULL,
1309                                *p_actual, *p_previous;
1310
1311     if( !p_input )
1312         return NULL;
1313
1314     vlc_value_t val_list, text_list;
1315     var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1316
1317     /* no tracks */
1318     if( val_list.p_list->i_count <= 0 )
1319         goto end;
1320
1321     p_track_description = ( libvlc_track_description_t * )
1322         malloc( sizeof( libvlc_track_description_t ) );
1323     if ( !p_track_description )
1324     {
1325         libvlc_printerr( "Not enough memory" );
1326         goto end;
1327     }
1328     p_actual = p_track_description;
1329     p_previous = NULL;
1330     for( int i = 0; i < val_list.p_list->i_count; i++ )
1331     {
1332         if( !p_actual )
1333         {
1334             p_actual = ( libvlc_track_description_t * )
1335                 malloc( sizeof( libvlc_track_description_t ) );
1336             if ( !p_actual )
1337             {
1338                 libvlc_track_description_list_release( p_track_description );
1339                 libvlc_printerr( "Not enough memory" );
1340                 goto end;
1341             }
1342         }
1343         p_actual->i_id = val_list.p_list->p_values[i].i_int;
1344         p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1345         p_actual->p_next = NULL;
1346         if( p_previous )
1347             p_previous->p_next = p_actual;
1348         p_previous = p_actual;
1349         p_actual =  NULL;
1350     }
1351
1352 end:
1353     var_FreeList( &val_list, &text_list );
1354     vlc_object_release( p_input );
1355
1356     return p_track_description;
1357 }
1358
1359 // Deprecated alias for libvlc_track_description_list_release
1360 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1361 {
1362     libvlc_track_description_list_release( p_td );
1363 }
1364
1365 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1366 {
1367     libvlc_track_description_t *p_actual, *p_before;
1368     p_actual = p_td;
1369
1370     while ( p_actual )
1371     {
1372         free( p_actual->psz_name );
1373         p_before = p_actual;
1374         p_actual = p_before->p_next;
1375         free( p_before );
1376     }
1377 }
1378
1379 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1380 {
1381     input_thread_t *p_input_thread;
1382     bool b_can_pause;
1383
1384     p_input_thread = libvlc_get_input_thread ( p_mi );
1385     if ( !p_input_thread )
1386         return false;
1387     b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1388     vlc_object_release( p_input_thread );
1389
1390     return b_can_pause;
1391 }
1392
1393 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1394 {
1395     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1396     if( p_input_thread != NULL )
1397     {
1398         var_TriggerCallback( p_input_thread, "frame-next" );
1399         vlc_object_release( p_input_thread );
1400     }
1401 }