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 #include <vlc_aout_intf.h>
  38
  39 #include "libvlc_internal.h"
  40 #include "media_internal.h" // libvlc_media_set_state()
  41 #include "media_player_internal.h"
  42
  43 /*
  44  * mapping of libvlc_navigate_mode_t to vlc_action_t
  45  */
  46 static const vlc_action_t libvlc_navigate_to_action[] =
  47 {
  48     ACTIONID_NAV_ACTIVATE,
  49     ACTIONID_NAV_UP,
  50     ACTIONID_NAV_DOWN,
  51     ACTIONID_NAV_LEFT,
  52     ACTIONID_NAV_RIGHT
  53 };
  54
  55 static const uint32_t libvlc_navigate_to_action_size =                        \
  56   sizeof( libvlc_navigate_to_action ) / sizeof( libvlc_navigate_to_action[0] );
  57
  58
  59 static int
  60 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
  61                         vlc_value_t oldval, vlc_value_t newval,
  62                         void * p_userdata );
  63 static int
  64 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
  65                         vlc_value_t oldval, vlc_value_t newval,
  66                         void * p_userdata );
  67 static int
  68 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
  69                      vlc_value_t oldval, vlc_value_t newval,
  70                      void * p_userdata );
  71
  72 static int
  73 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
  74                     vlc_value_t oldval, vlc_value_t newval, void *p_data );
  75
  76 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
  77
  78 /*
  79  * Shortcuts
  80  */
  81
  82 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
  83 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
  84 {
  85     libvlc_event_manager_register_event_type(mp->p_event_manager, type);
  86 }
  87
  88 /*
  89  * The input lock protects the input and input resource pointer.
  90  * It MUST NOT be used from callbacks.
  91  *
  92  * The object lock protects the reset, namely the media and the player state.
  93  * It can, and usually needs to be taken from callbacks.
  94  * The object lock can be acquired under the input lock... and consequently
  95  * the opposite order is STRICTLY PROHIBITED.
  96  */
  97 static inline void lock(libvlc_media_player_t *mp)
  98 {
  99     vlc_mutex_lock(&mp->object_lock);
 100 }
 101
 102 static inline void unlock(libvlc_media_player_t *mp)
 103 {
 104     vlc_mutex_unlock(&mp->object_lock);
 105 }
 106
 107 static inline void lock_input(libvlc_media_player_t *mp)
 108 {
 109     vlc_mutex_lock(&mp->input.lock);
 110 }
 111
 112 static inline void unlock_input(libvlc_media_player_t *mp)
 113 {
 114     vlc_mutex_unlock(&mp->input.lock);
 115 }
 116
 117 /*
 118  * Release the associated input thread.
 119  *
 120  * Object lock is NOT held.
 121  * Input lock is held or instance is being destroyed.
 122  */
 123 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
 124 {
 125     assert( p_mi );
 126
 127     input_thread_t *p_input_thread = p_mi->input.p_thread;
 128     if( !p_input_thread )
 129         return;
 130     p_mi->input.p_thread = NULL;
 131
 132     var_DelCallback( p_input_thread, "can-seek",
 133                      input_seekable_changed, p_mi );
 134     var_DelCallback( p_input_thread, "can-pause",
 135                     input_pausable_changed, p_mi );
 136     var_DelCallback( p_input_thread, "intf-event",
 137                      input_event_changed, p_mi );
 138
 139     /* We owned this one */
 140     input_Stop( p_input_thread, b_input_abort );
 141     input_Close( p_input_thread );
 142 }
 143
 144 /*
 145  * Retrieve the input thread. Be sure to release the object
 146  * once you are done with it. (libvlc Internal)
 147  */
 148 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
 149 {
 150     input_thread_t *p_input_thread;
 151
 152     assert( p_mi );
 153
 154     lock_input(p_mi);
 155     p_input_thread = p_mi->input.p_thread;
 156     if( p_input_thread )
 157         vlc_object_hold( p_input_thread );
 158     else
 159         libvlc_printerr( "No active input" );
 160     unlock_input(p_mi);
 161
 162     return p_input_thread;
 163 }
 164
 165 /*
 166  * Set the internal state of the media_player. (media player Internal)
 167  *
 168  * Function will lock the media_player.
 169  */
 170 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
 171     bool b_locked )
 172 {
 173     if(!b_locked)
 174         lock(p_mi);
 175     p_mi->state = state;
 176
 177     libvlc_media_t *media = p_mi->p_md;
 178     if (media)
 179         libvlc_media_retain(media);
 180
 181     if(!b_locked)
 182         unlock(p_mi);
 183
 184     if (media)
 185     {
 186         // Also set the state of the corresponding media
 187         // This is strictly for convenience.
 188         libvlc_media_set_state(media, state);
 189
 190         libvlc_media_release(media);
 191     }
 192 }
 193
 194 static int
 195 input_seekable_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     VLC_UNUSED(p_this);
 201     VLC_UNUSED(psz_cmd);
 202     libvlc_media_player_t * p_mi = p_userdata;
 203     libvlc_event_t event;
 204
 205     event.type = libvlc_MediaPlayerSeekableChanged;
 206     event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
 207
 208     libvlc_event_send( p_mi->p_event_manager, &event );
 209     return VLC_SUCCESS;
 210 }
 211
 212 static int
 213 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
 214                         vlc_value_t oldval, vlc_value_t newval,
 215                         void * p_userdata )
 216 {
 217     VLC_UNUSED(oldval);
 218     VLC_UNUSED(p_this);
 219     VLC_UNUSED(psz_cmd);
 220     libvlc_media_player_t * p_mi = p_userdata;
 221     libvlc_event_t event;
 222
 223     event.type = libvlc_MediaPlayerPausableChanged;
 224     event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
 225
 226     libvlc_event_send( p_mi->p_event_manager, &event );
 227     return VLC_SUCCESS;
 228 }
 229
 230 static int
 231 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
 232                      vlc_value_t oldval, vlc_value_t newval,
 233                      void * p_userdata )
 234 {
 235     VLC_UNUSED(oldval);
 236     input_thread_t * p_input = (input_thread_t *)p_this;
 237     libvlc_media_player_t * p_mi = p_userdata;
 238     libvlc_event_t event;
 239
 240     assert( !strcmp( psz_cmd, "intf-event" ) );
 241
 242     if( newval.i_int == INPUT_EVENT_STATE )
 243     {
 244         libvlc_state_t libvlc_state;
 245
 246         switch ( var_GetInteger( p_input, "state" ) )
 247         {
 248             case INIT_S:
 249                 libvlc_state = libvlc_NothingSpecial;
 250                 event.type = libvlc_MediaPlayerNothingSpecial;
 251                 break;
 252             case OPENING_S:
 253                 libvlc_state = libvlc_Opening;
 254                 event.type = libvlc_MediaPlayerOpening;
 255                 break;
 256             case PLAYING_S:
 257                 libvlc_state = libvlc_Playing;
 258                 event.type = libvlc_MediaPlayerPlaying;
 259                 break;
 260             case PAUSE_S:
 261                 libvlc_state = libvlc_Paused;
 262                 event.type = libvlc_MediaPlayerPaused;
 263                 break;
 264             case END_S:
 265                 libvlc_state = libvlc_Ended;
 266                 event.type = libvlc_MediaPlayerEndReached;
 267                 break;
 268             case ERROR_S:
 269                 libvlc_state = libvlc_Error;
 270                 event.type = libvlc_MediaPlayerEncounteredError;
 271                 break;
 272
 273             default:
 274                 return VLC_SUCCESS;
 275         }
 276
 277         set_state( p_mi, libvlc_state, false );
 278         libvlc_event_send( p_mi->p_event_manager, &event );
 279     }
 280     else if( newval.i_int == INPUT_EVENT_ABORT )
 281     {
 282         libvlc_state_t libvlc_state = libvlc_Stopped;
 283         event.type = libvlc_MediaPlayerStopped;
 284
 285         set_state( p_mi, libvlc_state, false );
 286         libvlc_event_send( p_mi->p_event_manager, &event );
 287     }
 288     else if( newval.i_int == INPUT_EVENT_POSITION )
 289     {
 290         if( var_GetInteger( p_input, "state" ) != PLAYING_S )
 291             return VLC_SUCCESS; /* Don't send the position while stopped */
 292
 293         /* */
 294         event.type = libvlc_MediaPlayerPositionChanged;
 295         event.u.media_player_position_changed.new_position =
 296                                           var_GetFloat( p_input, "position" );
 297         libvlc_event_send( p_mi->p_event_manager, &event );
 298
 299         /* */
 300         event.type = libvlc_MediaPlayerTimeChanged;
 301         event.u.media_player_time_changed.new_time =
 302            from_mtime(var_GetTime( p_input, "time" ));
 303         libvlc_event_send( p_mi->p_event_manager, &event );
 304     }
 305     else if( newval.i_int == INPUT_EVENT_LENGTH )
 306     {
 307         event.type = libvlc_MediaPlayerLengthChanged;
 308         event.u.media_player_length_changed.new_length =
 309            from_mtime(var_GetTime( p_input, "length" ));
 310         libvlc_event_send( p_mi->p_event_manager, &event );
 311     }
 312     else if( newval.i_int == INPUT_EVENT_CACHE )
 313     {
 314         event.type = libvlc_MediaPlayerBuffering;
 315         event.u.media_player_buffering.new_cache = (int)(100 *
 316             var_GetFloat( p_input, "cache" ));
 317         libvlc_event_send( p_mi->p_event_manager, &event );
 318     }
 319     else if( newval.i_int == INPUT_EVENT_VOUT )
 320     {
 321         vout_thread_t **pp_vout;
 322         size_t i_vout;
 323         if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 324         {
 325             i_vout  = 0;
 326         }
 327         else
 328         {
 329             for( size_t i = 0; i < i_vout; i++ )
 330                 vlc_object_release( pp_vout[i] );
 331             free( pp_vout );
 332         }
 333
 334         event.type = libvlc_MediaPlayerVout;
 335         event.u.media_player_vout.new_count = i_vout;
 336         libvlc_event_send( p_mi->p_event_manager, &event );
 337     }
 338
 339     return VLC_SUCCESS;
 340 }
 341
 342 /**************************************************************************
 343  * Snapshot Taken Event.
 344  *
 345  * FIXME: This snapshot API interface makes no sense in media_player.
 346  *************************************************************************/
 347 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
 348                               vlc_value_t oldval, vlc_value_t newval, void *p_data )
 349 {
 350     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
 351
 352     libvlc_media_player_t *mp = p_data;
 353     libvlc_event_t event;
 354     event.type = libvlc_MediaPlayerSnapshotTaken;
 355     event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
 356     libvlc_event_send(mp->p_event_manager, &event);
 357
 358     return VLC_SUCCESS;
 359 }
 360
 361 static input_thread_t *find_input (vlc_object_t *obj)
 362 {
 363     libvlc_media_player_t *mp = (libvlc_media_player_t *)obj;
 364
 365     return libvlc_get_input_thread (mp);
 366 }
 367
 368 /* */
 369 static void libvlc_media_player_destroy( libvlc_media_player_t * );
 370
 371
 372 /**************************************************************************
 373  * Create a Media Instance object.
 374  *
 375  * Refcount strategy:
 376  * - All items created by _new start with a refcount set to 1.
 377  * - Accessor _release decrease the refcount by 1, if after that
 378  *   operation the refcount is 0, the object is destroyed.
 379  * - Accessor _retain increase the refcount by 1 (XXX: to implement)
 380  *
 381  * Object locking strategy:
 382  * - No lock held while in constructor.
 383  * - When accessing any member variable this lock is held. (XXX who locks?)
 384  * - When attempting to destroy the object the lock is also held.
 385  **************************************************************************/
 386 libvlc_media_player_t *
 387 libvlc_media_player_new( libvlc_instance_t *instance )
 388 {
 389     libvlc_media_player_t * mp;
 390
 391     assert(instance);
 392
 393     mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
 394     if (unlikely(mp == NULL))
 395     {
 396         libvlc_printerr("Not enough memory");
 397         return NULL;
 398     }
 399
 400     /* Input */
 401     var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
 402
 403     /* Video */
 404     var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
 405     var_Create (mp, "window", VLC_VAR_STRING);
 406     var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
 407     var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
 408     var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
 409     var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
 410     var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
 411     var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
 412     var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 413     var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 414     var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 415     var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 416     var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
 417 #if defined (WIN32) || defined (__OS2__)
 418     var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
 419 #endif
 420 #ifdef __APPLE__
 421     var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
 422     var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
 423 #endif
 424
 425     var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
 426     var_SetBool (mp, "keyboard-events", true);
 427     var_Create (mp, "mouse-events", VLC_VAR_BOOL);
 428     var_SetBool (mp, "mouse-events", true);
 429
 430     var_Create (mp, "fullscreen", VLC_VAR_BOOL);
 431     var_Create (mp, "autoscale", VLC_VAR_BOOL);
 432     var_SetBool (mp, "autoscale", true);
 433     var_Create (mp, "scale", VLC_VAR_FLOAT);
 434     var_SetFloat (mp, "scale", 1.);
 435     var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
 436     var_Create (mp, "crop", VLC_VAR_STRING);
 437     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
 438     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 439
 440     var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
 441
 442     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
 443     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 444     var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 445     var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 446     var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 447     var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 448     var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 449     var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 450     var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 451
 452     var_Create (mp, "logo-file", VLC_VAR_STRING);
 453     var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 454     var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 455     var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 456     var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 457     var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 458     var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 459
 460     var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 461     var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 462     var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 463     var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 464     var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 465
 466      /* Audio */
 467     var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 468     var_Create (mp, "mute", VLC_VAR_BOOL);
 469     var_Create (mp, "volume", VLC_VAR_FLOAT);
 470     var_Create (mp, "find-input-callback", VLC_VAR_ADDRESS);
 471     var_SetAddress (mp, "find-input-callback", find_input);
 472     var_Create (mp, "corks", VLC_VAR_INTEGER);
 473     var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
 474     var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
 475     var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
 476     var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
 477     var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
 478     var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
 479     var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
 480     var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
 481     var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
 482     var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 483     var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 484     var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 485
 486     var_Create (mp, "equalizer-preamp", VLC_VAR_FLOAT);
 487     var_Create (mp, "equalizer-bands", VLC_VAR_STRING);
 488
 489     mp->p_md = NULL;
 490     mp->state = libvlc_NothingSpecial;
 491     mp->p_libvlc_instance = instance;
 492     mp->input.p_thread = NULL;
 493     mp->input.p_resource = NULL;
 494     vlc_mutex_init (&mp->input.lock);
 495     mp->i_refcount = 1;
 496     mp->p_event_manager = libvlc_event_manager_new(mp, instance);
 497     if (unlikely(mp->p_event_manager == NULL))
 498     {
 499         vlc_object_release(mp);
 500         return NULL;
 501     }
 502     vlc_mutex_init(&mp->object_lock);
 503
 504     register_event(mp, NothingSpecial);
 505     register_event(mp, Opening);
 506     register_event(mp, Buffering);
 507     register_event(mp, Playing);
 508     register_event(mp, Paused);
 509     register_event(mp, Stopped);
 510     register_event(mp, Forward);
 511     register_event(mp, Backward);
 512     register_event(mp, EndReached);
 513     register_event(mp, EncounteredError);
 514     register_event(mp, SeekableChanged);
 515
 516     register_event(mp, PositionChanged);
 517     register_event(mp, TimeChanged);
 518     register_event(mp, LengthChanged);
 519     register_event(mp, TitleChanged);
 520     register_event(mp, PausableChanged);
 521
 522     register_event(mp, Vout);
 523
 524     /* Snapshot initialization */
 525     register_event(mp, SnapshotTaken);
 526
 527     register_event(mp, MediaChanged);
 528
 529     /* Attach a var callback to the global object to provide the glue between
 530      * vout_thread that generates the event and media_player that re-emits it
 531      * with its own event manager
 532      *
 533      * FIXME: It's unclear why we want to put this in public API, and why we
 534      * want to expose it in such a limiting and ugly way.
 535      */
 536     var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
 537
 538     libvlc_retain(instance);
 539     return mp;
 540 }
 541
 542 /**************************************************************************
 543  * Create a Media Instance object with a media descriptor.
 544  **************************************************************************/
 545 libvlc_media_player_t *
 546 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
 547 {
 548     libvlc_media_player_t * p_mi;
 549
 550     p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
 551     if( !p_mi )
 552         return NULL;
 553
 554     libvlc_media_retain( p_md );
 555     p_mi->p_md = p_md;
 556
 557     return p_mi;
 558 }
 559
 560 /**************************************************************************
 561  * Destroy a Media Instance object (libvlc internal)
 562  *
 563  * Warning: No lock held here, but hey, this is internal. Caller must lock.
 564  **************************************************************************/
 565 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
 566 {
 567     assert( p_mi );
 568
 569     /* Detach Callback from the main libvlc object */
 570     var_DelCallback( p_mi->p_libvlc,
 571                      "snapshot-file", snapshot_was_taken, p_mi );
 572
 573     /* No need for lock_input() because no other threads knows us anymore */
 574     if( p_mi->input.p_thread )
 575         release_input_thread(p_mi, true);
 576     if( p_mi->input.p_resource )
 577     {
 578         input_resource_Terminate( p_mi->input.p_resource );
 579         input_resource_Release( p_mi->input.p_resource );
 580         p_mi->input.p_resource = NULL;
 581     }
 582     vlc_mutex_destroy( &p_mi->input.lock );
 583
 584     libvlc_event_manager_release( p_mi->p_event_manager );
 585     libvlc_media_release( p_mi->p_md );
 586     vlc_mutex_destroy( &p_mi->object_lock );
 587
 588     libvlc_instance_t *instance = p_mi->p_libvlc_instance;
 589     vlc_object_release( p_mi );
 590     libvlc_release(instance);
 591 }
 592
 593 /**************************************************************************
 594  * Release a Media Instance object.
 595  *
 596  * Function does the locking.
 597  **************************************************************************/
 598 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
 599 {
 600     bool destroy;
 601
 602     assert( p_mi );
 603     lock(p_mi);
 604     destroy = !--p_mi->i_refcount;
 605     unlock(p_mi);
 606
 607     if( destroy )
 608         libvlc_media_player_destroy( p_mi );
 609 }
 610
 611 /**************************************************************************
 612  * Retain a Media Instance object.
 613  *
 614  * Caller must hold the lock.
 615  **************************************************************************/
 616 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
 617 {
 618     assert( p_mi );
 619
 620     lock(p_mi);
 621     p_mi->i_refcount++;
 622     unlock(p_mi);
 623 }
 624
 625 /**************************************************************************
 626  * Set the Media descriptor associated with the instance.
 627  *
 628  * Enter without lock -- function will lock the object.
 629  **************************************************************************/
 630 void libvlc_media_player_set_media(
 631                             libvlc_media_player_t *p_mi,
 632                             libvlc_media_t *p_md )
 633 {
 634     lock_input(p_mi);
 635
 636     /* FIXME I am not sure if it is a user request or on die(eof/error)
 637      * request here */
 638     release_input_thread( p_mi,
 639                           p_mi->input.p_thread &&
 640                           !p_mi->input.p_thread->b_eof &&
 641                           !p_mi->input.p_thread->b_error );
 642
 643     lock( p_mi );
 644     set_state( p_mi, libvlc_NothingSpecial, true );
 645     unlock_input( p_mi );
 646
 647     libvlc_media_release( p_mi->p_md );
 648
 649     if( !p_md )
 650     {
 651         p_mi->p_md = NULL;
 652         unlock(p_mi);
 653         return; /* It is ok to pass a NULL md */
 654     }
 655
 656     libvlc_media_retain( p_md );
 657     p_mi->p_md = p_md;
 658
 659     /* The policy here is to ignore that we were created using a different
 660      * libvlc_instance, because we don't really care */
 661     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 662
 663     unlock(p_mi);
 664
 665     /* Send an event for the newly available media */
 666     libvlc_event_t event;
 667     event.type = libvlc_MediaPlayerMediaChanged;
 668     event.u.media_player_media_changed.new_media = p_md;
 669     libvlc_event_send( p_mi->p_event_manager, &event );
 670
 671 }
 672
 673 /**************************************************************************
 674  * Get the Media descriptor associated with the instance.
 675  **************************************************************************/
 676 libvlc_media_t *
 677 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
 678 {
 679     libvlc_media_t *p_m;
 680
 681     lock(p_mi);
 682     p_m = p_mi->p_md;
 683     if( p_m )
 684         libvlc_media_retain( p_mi->p_md );
 685     unlock(p_mi);
 686     return p_mi->p_md;
 687 }
 688
 689 /**************************************************************************
 690  * Get the event Manager.
 691  **************************************************************************/
 692 libvlc_event_manager_t *
 693 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
 694 {
 695     return p_mi->p_event_manager;
 696 }
 697
 698 /**************************************************************************
 699  * Tell media player to start playing.
 700  **************************************************************************/
 701 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
 702 {
 703     lock_input( p_mi );
 704
 705     input_thread_t *p_input_thread = p_mi->input.p_thread;
 706     if( p_input_thread )
 707     {
 708         /* A thread already exists, send it a play message */
 709         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 710         unlock_input( p_mi );
 711         return 0;
 712     }
 713
 714     /* Ignore previous exception */
 715     lock(p_mi);
 716
 717     if( !p_mi->p_md )
 718     {
 719         unlock(p_mi);
 720         unlock_input( p_mi );
 721         libvlc_printerr( "No associated media descriptor" );
 722         return -1;
 723     }
 724
 725     if( !p_mi->input.p_resource )
 726         p_mi->input.p_resource = input_resource_New( VLC_OBJECT( p_mi ) );
 727     p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
 728                                    p_mi->input.p_resource );
 729     unlock(p_mi);
 730     if( !p_input_thread )
 731     {
 732         unlock_input(p_mi);
 733         libvlc_printerr( "Not enough memory" );
 734         return -1;
 735     }
 736
 737     var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 738     var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 739     var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 740
 741     if( input_Start( p_input_thread ) )
 742     {
 743         unlock_input(p_mi);
 744         var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 745         var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 746         var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 747         vlc_object_release( p_input_thread );
 748         libvlc_printerr( "Input initialization failure" );
 749         return -1;
 750     }
 751     p_mi->input.p_thread = p_input_thread;
 752     unlock_input(p_mi);
 753
 754     if( strlen( var_GetString( p_mi, "equalizer-bands" ) ) > 0 )
 755         aout_EnableFilter( p_mi, "equalizer", true );
 756
 757     return 0;
 758 }
 759
 760 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
 761 {
 762     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
 763     if( !p_input_thread )
 764         return;
 765
 766     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 767     if( state == libvlc_Playing || state == libvlc_Buffering )
 768     {
 769         if( paused )
 770         {
 771             if( libvlc_media_player_can_pause( p_mi ) )
 772                 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 773             else
 774                 libvlc_media_player_stop( p_mi );
 775         }
 776     }
 777     else
 778     {
 779         if( !paused )
 780             input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 781     }
 782
 783     vlc_object_release( p_input_thread );
 784 }
 785
 786 /**************************************************************************
 787  * Toggle pause.
 788  **************************************************************************/
 789 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
 790 {
 791     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 792     bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
 793
 794     libvlc_media_player_set_pause( p_mi, playing );
 795 }
 796
 797 /**************************************************************************
 798  * Tells whether the media player is currently playing.
 799  *
 800  * Enter with lock held.
 801  **************************************************************************/
 802 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
 803 {
 804     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 805     return (libvlc_Playing == state) || (libvlc_Buffering == state);
 806 }
 807
 808 /**************************************************************************
 809  * Stop playing.
 810  **************************************************************************/
 811 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
 812 {
 813     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 814
 815     lock_input(p_mi);
 816     release_input_thread( p_mi, true ); /* This will stop the input thread */
 817
 818     /* Force to go to stopped state, in case we were in Ended, or Error
 819      * state. */
 820     if( state != libvlc_Stopped )
 821     {
 822         set_state( p_mi, libvlc_Stopped, false );
 823
 824         /* Construct and send the event */
 825         libvlc_event_t event;
 826         event.type = libvlc_MediaPlayerStopped;
 827         libvlc_event_send( p_mi->p_event_manager, &event );
 828     }
 829
 830     if( p_mi->input.p_resource != NULL )
 831         input_resource_Terminate( p_mi->input.p_resource );
 832     unlock_input(p_mi);
 833 }
 834
 835
 836 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
 837     void *(*lock_cb) (void *, void **),
 838     void (*unlock_cb) (void *, void *, void *const *),
 839     void (*display_cb) (void *, void *),
 840     void *opaque )
 841 {
 842     var_SetAddress( mp, "vmem-lock", lock_cb );
 843     var_SetAddress( mp, "vmem-unlock", unlock_cb );
 844     var_SetAddress( mp, "vmem-display", display_cb );
 845     var_SetAddress( mp, "vmem-data", opaque );
 846     var_SetString( mp, "vout", "vmem" );
 847 }
 848
 849 void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
 850                                         libvlc_video_format_cb setup,
 851                                         libvlc_video_cleanup_cb cleanup )
 852 {
 853     var_SetAddress( mp, "vmem-setup", setup );
 854     var_SetAddress( mp, "vmem-cleanup", cleanup );
 855 }
 856
 857 void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
 858                               unsigned width, unsigned height, unsigned pitch )
 859 {
 860     var_SetString( mp, "vmem-chroma", chroma );
 861     var_SetInteger( mp, "vmem-width", width );
 862     var_SetInteger( mp, "vmem-height", height );
 863     var_SetInteger( mp, "vmem-pitch", pitch );
 864 }
 865
 866 /**************************************************************************
 867  * set_nsobject
 868  **************************************************************************/
 869 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
 870                                         void * drawable )
 871 {
 872     assert (p_mi != NULL);
 873 #ifdef __APPLE__
 874     var_SetAddress (p_mi, "drawable-nsobject", drawable);
 875 #else
 876     (void) p_mi; (void)drawable;
 877 #endif
 878 }
 879
 880 /**************************************************************************
 881  * get_nsobject
 882  **************************************************************************/
 883 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
 884 {
 885     assert (p_mi != NULL);
 886 #ifdef __APPLE__
 887     return var_GetAddress (p_mi, "drawable-nsobject");
 888 #else
 889     return NULL;
 890 #endif
 891 }
 892
 893 /**************************************************************************
 894  * set_agl
 895  **************************************************************************/
 896 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
 897                                   uint32_t drawable )
 898 {
 899 #ifdef __APPLE__
 900     var_SetInteger (p_mi, "drawable-agl", drawable);
 901 #else
 902     (void) p_mi; (void)drawable;
 903 #endif
 904 }
 905
 906 /**************************************************************************
 907  * get_agl
 908  **************************************************************************/
 909 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
 910 {
 911     assert (p_mi != NULL);
 912 #ifdef __APPLE__
 913     return var_GetInteger (p_mi, "drawable-agl");
 914 #else
 915     return 0;
 916 #endif
 917 }
 918
 919 /**************************************************************************
 920  * set_xwindow
 921  **************************************************************************/
 922 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
 923                                       uint32_t drawable )
 924 {
 925     assert (p_mi != NULL);
 926
 927     var_SetString (p_mi, "vout", drawable ? "xid" : "any");
 928     var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
 929     var_SetInteger (p_mi, "drawable-xid", drawable);
 930 }
 931
 932 /**************************************************************************
 933  * get_xwindow
 934  **************************************************************************/
 935 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
 936 {
 937     return var_GetInteger (p_mi, "drawable-xid");
 938 }
 939
 940 /**************************************************************************
 941  * set_hwnd
 942  **************************************************************************/
 943 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
 944                                    void *drawable )
 945 {
 946     assert (p_mi != NULL);
 947 #if defined (WIN32) || defined (__OS2__)
 948     var_SetString (p_mi, "window",
 949                    (drawable != NULL) ? "embed-hwnd,any" : "");
 950     var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
 951 #else
 952     (void) p_mi; (void) drawable;
 953 #endif
 954 }
 955
 956 /**************************************************************************
 957  * get_hwnd
 958  **************************************************************************/
 959 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
 960 {
 961     assert (p_mi != NULL);
 962 #if defined (WIN32) || defined (__OS2__)
 963     return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
 964 #else
 965     return NULL;
 966 #endif
 967 }
 968
 969 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
 970                                  libvlc_audio_play_cb play_cb,
 971                                  libvlc_audio_pause_cb pause_cb,
 972                                  libvlc_audio_resume_cb resume_cb,
 973                                  libvlc_audio_flush_cb flush_cb,
 974                                  libvlc_audio_drain_cb drain_cb,
 975                                  void *opaque )
 976 {
 977     var_SetAddress( mp, "amem-play", play_cb );
 978     var_SetAddress( mp, "amem-pause", pause_cb );
 979     var_SetAddress( mp, "amem-resume", resume_cb );
 980     var_SetAddress( mp, "amem-flush", flush_cb );
 981     var_SetAddress( mp, "amem-drain", drain_cb );
 982     var_SetAddress( mp, "amem-data", opaque );
 983     var_SetString( mp, "aout", "amem,none" );
 984 }
 985
 986 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
 987                                        libvlc_audio_set_volume_cb cb )
 988 {
 989     var_SetAddress( mp, "amem-set-volume", cb );
 990 }
 991
 992 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
 993                                         libvlc_audio_setup_cb setup,
 994                                         libvlc_audio_cleanup_cb cleanup )
 995 {
 996     var_SetAddress( mp, "amem-setup", setup );
 997     var_SetAddress( mp, "amem-cleanup", cleanup );
 998 }
 999
1000 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
1001                               unsigned rate, unsigned channels )
1002 {
1003     var_SetString( mp, "amem-format", format );
1004     var_SetInteger( mp, "amem-rate", rate );
1005     var_SetInteger( mp, "amem-channels", channels );
1006 }
1007
1008
1009 /**************************************************************************
1010  * Getters for stream information
1011  **************************************************************************/
1012 libvlc_time_t libvlc_media_player_get_length(
1013                              libvlc_media_player_t *p_mi )
1014 {
1015     input_thread_t *p_input_thread;
1016     libvlc_time_t i_time;
1017
1018     p_input_thread = libvlc_get_input_thread ( p_mi );
1019     if( !p_input_thread )
1020         return -1;
1021
1022     i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1023     vlc_object_release( p_input_thread );
1024
1025     return i_time;
1026 }
1027
1028 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1029 {
1030     input_thread_t *p_input_thread;
1031     libvlc_time_t i_time;
1032
1033     p_input_thread = libvlc_get_input_thread ( p_mi );
1034     if( !p_input_thread )
1035         return -1;
1036
1037     i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1038     vlc_object_release( p_input_thread );
1039     return i_time;
1040 }
1041
1042 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1043                                    libvlc_time_t i_time )
1044 {
1045     input_thread_t *p_input_thread;
1046
1047     p_input_thread = libvlc_get_input_thread ( p_mi );
1048     if( !p_input_thread )
1049         return;
1050
1051     var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1052     vlc_object_release( p_input_thread );
1053 }
1054
1055 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1056                                        float position )
1057 {
1058     input_thread_t *p_input_thread;
1059
1060     p_input_thread = libvlc_get_input_thread ( p_mi );
1061     if( !p_input_thread )
1062         return;
1063
1064     var_SetFloat( p_input_thread, "position", position );
1065     vlc_object_release( p_input_thread );
1066 }
1067
1068 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1069 {
1070     input_thread_t *p_input_thread;
1071     float f_position;
1072
1073     p_input_thread = libvlc_get_input_thread ( p_mi );
1074     if( !p_input_thread )
1075         return -1.0;
1076
1077     f_position = var_GetFloat( p_input_thread, "position" );
1078     vlc_object_release( p_input_thread );
1079
1080     return f_position;
1081 }
1082
1083 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1084                                       int chapter )
1085 {
1086     input_thread_t *p_input_thread;
1087
1088     p_input_thread = libvlc_get_input_thread ( p_mi );
1089     if( !p_input_thread )
1090         return;
1091
1092     var_SetInteger( p_input_thread, "chapter", chapter );
1093     vlc_object_release( p_input_thread );
1094 }
1095
1096 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1097 {
1098     input_thread_t *p_input_thread;
1099     int i_chapter;
1100
1101     p_input_thread = libvlc_get_input_thread ( p_mi );
1102     if( !p_input_thread )
1103         return -1;
1104
1105     i_chapter = var_GetInteger( p_input_thread, "chapter" );
1106     vlc_object_release( p_input_thread );
1107
1108     return i_chapter;
1109 }
1110
1111 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1112 {
1113     input_thread_t *p_input_thread;
1114     vlc_value_t val;
1115
1116     p_input_thread = libvlc_get_input_thread ( p_mi );
1117     if( !p_input_thread )
1118         return -1;
1119
1120     var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1121     vlc_object_release( p_input_thread );
1122
1123     return val.i_int;
1124 }
1125
1126 int libvlc_media_player_get_chapter_count_for_title(
1127                                  libvlc_media_player_t *p_mi,
1128                                  int i_title )
1129 {
1130     input_thread_t *p_input_thread;
1131     vlc_value_t val;
1132
1133     p_input_thread = libvlc_get_input_thread ( p_mi );
1134     if( !p_input_thread )
1135         return -1;
1136
1137     char *psz_name;
1138     if( asprintf( &psz_name,  "title %2i", i_title ) == -1 )
1139     {
1140         vlc_object_release( p_input_thread );
1141         return -1;
1142     }
1143     var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1144     vlc_object_release( p_input_thread );
1145     free( psz_name );
1146
1147     return val.i_int;
1148 }
1149
1150 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1151                                     int i_title )
1152 {
1153     input_thread_t *p_input_thread;
1154
1155     p_input_thread = libvlc_get_input_thread ( p_mi );
1156     if( !p_input_thread )
1157         return;
1158
1159     var_SetInteger( p_input_thread, "title", i_title );
1160     vlc_object_release( p_input_thread );
1161
1162     //send event
1163     libvlc_event_t event;
1164     event.type = libvlc_MediaPlayerTitleChanged;
1165     event.u.media_player_title_changed.new_title = i_title;
1166     libvlc_event_send( p_mi->p_event_manager, &event );
1167 }
1168
1169 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1170 {
1171     input_thread_t *p_input_thread;
1172     int i_title;
1173
1174     p_input_thread = libvlc_get_input_thread ( p_mi );
1175     if( !p_input_thread )
1176         return -1;
1177
1178     i_title = var_GetInteger( p_input_thread, "title" );
1179     vlc_object_release( p_input_thread );
1180
1181     return i_title;
1182 }
1183
1184 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1185 {
1186     input_thread_t *p_input_thread;
1187     vlc_value_t val;
1188
1189     p_input_thread = libvlc_get_input_thread ( p_mi );
1190     if( !p_input_thread )
1191         return -1;
1192
1193     var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1194     vlc_object_release( p_input_thread );
1195
1196     return val.i_int;
1197 }
1198
1199 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1200 {
1201     input_thread_t *p_input_thread;
1202
1203     p_input_thread = libvlc_get_input_thread ( p_mi );
1204     if( !p_input_thread )
1205         return;
1206
1207     int i_type = var_Type( p_input_thread, "next-chapter" );
1208     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1209                             "next-chapter":"next-title" );
1210
1211     vlc_object_release( p_input_thread );
1212 }
1213
1214 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1215 {
1216     input_thread_t *p_input_thread;
1217
1218     p_input_thread = libvlc_get_input_thread ( p_mi );
1219     if( !p_input_thread )
1220         return;
1221
1222     int i_type = var_Type( p_input_thread, "next-chapter" );
1223     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1224                             "prev-chapter":"prev-title" );
1225
1226     vlc_object_release( p_input_thread );
1227 }
1228
1229 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1230 {
1231     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1232     double f_fps = 0.0;
1233
1234     if( p_input_thread )
1235     {
1236         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1237             f_fps = 0.0;
1238         vlc_object_release( p_input_thread );
1239     }
1240     return f_fps;
1241 }
1242
1243 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1244 {
1245     bool b_will_play;
1246     input_thread_t *p_input_thread =
1247                             libvlc_get_input_thread ( p_mi );
1248     if ( !p_input_thread )
1249         return false;
1250
1251     b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1252     vlc_object_release( p_input_thread );
1253
1254     return b_will_play;
1255 }
1256
1257 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1258 {
1259     if (rate < 0.)
1260     {
1261         libvlc_printerr ("Playing backward not supported");
1262         return -1;
1263     }
1264
1265     var_SetFloat (p_mi, "rate", rate);
1266
1267     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1268     if( !p_input_thread )
1269         return 0;
1270     var_SetFloat( p_input_thread, "rate", rate );
1271     vlc_object_release( p_input_thread );
1272     return 0;
1273 }
1274
1275 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1276 {
1277     return var_GetFloat (p_mi, "rate");
1278 }
1279
1280 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1281 {
1282     lock(p_mi);
1283     libvlc_state_t state = p_mi->state;
1284     unlock(p_mi);
1285     return state;
1286 }
1287
1288 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1289 {
1290     input_thread_t *p_input_thread;
1291     bool b_seekable;
1292
1293     p_input_thread = libvlc_get_input_thread ( p_mi );
1294     if ( !p_input_thread )
1295         return false;
1296     b_seekable = var_GetBool( p_input_thread, "can-seek" );
1297     vlc_object_release( p_input_thread );
1298
1299     return b_seekable;
1300 }
1301
1302 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1303                                    unsigned navigate )
1304 {
1305     input_thread_t *p_input_thread;
1306
1307     if ( navigate >= libvlc_navigate_to_action_size)
1308       return;
1309
1310     p_input_thread = libvlc_get_input_thread ( p_mi );
1311     if ( !p_input_thread )
1312       return;
1313
1314     var_SetInteger( p_mi->p_libvlc_instance->p_libvlc_int,
1315                     "key-action", libvlc_navigate_to_action[navigate] );
1316
1317     vlc_object_release( p_input_thread );
1318 }
1319
1320 /* internal function, used by audio, video */
1321 libvlc_track_description_t *
1322         libvlc_get_track_description( libvlc_media_player_t *p_mi,
1323                                       const char *psz_variable )
1324 {
1325     input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1326     libvlc_track_description_t *p_track_description = NULL,
1327                                *p_actual, *p_previous;
1328
1329     if( !p_input )
1330         return NULL;
1331
1332     vlc_value_t val_list, text_list;
1333     var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1334
1335     /* no tracks */
1336     if( val_list.p_list->i_count <= 0 )
1337         goto end;
1338
1339     p_track_description = ( libvlc_track_description_t * )
1340         malloc( sizeof( libvlc_track_description_t ) );
1341     if ( !p_track_description )
1342     {
1343         libvlc_printerr( "Not enough memory" );
1344         goto end;
1345     }
1346     p_actual = p_track_description;
1347     p_previous = NULL;
1348     for( int i = 0; i < val_list.p_list->i_count; i++ )
1349     {
1350         if( !p_actual )
1351         {
1352             p_actual = ( libvlc_track_description_t * )
1353                 malloc( sizeof( libvlc_track_description_t ) );
1354             if ( !p_actual )
1355             {
1356                 libvlc_track_description_list_release( p_track_description );
1357                 libvlc_printerr( "Not enough memory" );
1358                 goto end;
1359             }
1360         }
1361         p_actual->i_id = val_list.p_list->p_values[i].i_int;
1362         p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1363         p_actual->p_next = NULL;
1364         if( p_previous )
1365             p_previous->p_next = p_actual;
1366         p_previous = p_actual;
1367         p_actual =  NULL;
1368     }
1369
1370 end:
1371     var_FreeList( &val_list, &text_list );
1372     vlc_object_release( p_input );
1373
1374     return p_track_description;
1375 }
1376
1377 // Deprecated alias for libvlc_track_description_list_release
1378 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1379 {
1380     libvlc_track_description_list_release( p_td );
1381 }
1382
1383 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1384 {
1385     libvlc_track_description_t *p_actual, *p_before;
1386     p_actual = p_td;
1387
1388     while ( p_actual )
1389     {
1390         free( p_actual->psz_name );
1391         p_before = p_actual;
1392         p_actual = p_before->p_next;
1393         free( p_before );
1394     }
1395 }
1396
1397 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1398 {
1399     input_thread_t *p_input_thread;
1400     bool b_can_pause;
1401
1402     p_input_thread = libvlc_get_input_thread ( p_mi );
1403     if ( !p_input_thread )
1404         return false;
1405     b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1406     vlc_object_release( p_input_thread );
1407
1408     return b_can_pause;
1409 }
1410
1411 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1412 {
1413     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1414     if( p_input_thread != NULL )
1415     {
1416         var_TriggerCallback( p_input_thread, "frame-next" );
1417         vlc_object_release( p_input_thread );
1418     }
1419 }
1420
1421 int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
1422 {
1423     if ( !p_equalizer )
1424     {
1425         aout_EnableFilter( p_mi, "equalizer", false );
1426         var_SetString( p_mi, "equalizer-bands", NULL );
1427         return 0;
1428     }
1429
1430     var_SetFloat( p_mi, "equalizer-preamp", p_equalizer->f_preamp );
1431
1432     char *psz_bands = NULL;
1433     for ( int i = 0; i < EQZ_BANDS_MAX; i++ )
1434     {
1435         char *psz;
1436         if ( asprintf( &psz, "%s %.07f", psz_bands ? psz_bands : "", p_equalizer->f_amp[i] ) == -1 )
1437         {
1438             free( psz_bands );
1439             return -1;
1440         }
1441         free( psz_bands );
1442         psz_bands = psz;
1443     }
1444     var_SetString( p_mi, "equalizer-bands", psz_bands );
1445     free( psz_bands );
1446
1447     aout_EnableFilter( p_mi, "equalizer", true );
1448     return 0;
1449 }