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_aout.h>
  37 #include <vlc_keys.h>
  38
  39 #include "libvlc_internal.h"
  40 #include "media_internal.h" // libvlc_media_set_state()
  41 #include "media_player_internal.h"
  42
  43 static int
  44 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
  45                         vlc_value_t oldval, vlc_value_t newval,
  46                         void * p_userdata );
  47 static int
  48 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
  49                         vlc_value_t oldval, vlc_value_t newval,
  50                         void * p_userdata );
  51 static int
  52 input_scrambled_changed( vlc_object_t * p_this, char const * psz_cmd,
  53                         vlc_value_t oldval, vlc_value_t newval,
  54                         void * p_userdata );
  55 static int
  56 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
  57                      vlc_value_t oldval, vlc_value_t newval,
  58                      void * p_userdata );
  59
  60 static int
  61 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
  62                     vlc_value_t oldval, vlc_value_t newval, void *p_data );
  63
  64 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
  65
  66 /*
  67  * Shortcuts
  68  */
  69
  70 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
  71 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
  72 {
  73     libvlc_event_manager_register_event_type(mp->p_event_manager, type);
  74 }
  75
  76 /*
  77  * The input lock protects the input and input resource pointer.
  78  * It MUST NOT be used from callbacks.
  79  *
  80  * The object lock protects the reset, namely the media and the player state.
  81  * It can, and usually needs to be taken from callbacks.
  82  * The object lock can be acquired under the input lock... and consequently
  83  * the opposite order is STRICTLY PROHIBITED.
  84  */
  85 static inline void lock(libvlc_media_player_t *mp)
  86 {
  87     vlc_mutex_lock(&mp->object_lock);
  88 }
  89
  90 static inline void unlock(libvlc_media_player_t *mp)
  91 {
  92     vlc_mutex_unlock(&mp->object_lock);
  93 }
  94
  95 static inline void lock_input(libvlc_media_player_t *mp)
  96 {
  97     vlc_mutex_lock(&mp->input.lock);
  98 }
  99
 100 static inline void unlock_input(libvlc_media_player_t *mp)
 101 {
 102     vlc_mutex_unlock(&mp->input.lock);
 103 }
 104
 105 /*
 106  * Release the associated input thread.
 107  *
 108  * Object lock is NOT held.
 109  * Input lock is held or instance is being destroyed.
 110  */
 111 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
 112 {
 113     assert( p_mi );
 114
 115     input_thread_t *p_input_thread = p_mi->input.p_thread;
 116     if( !p_input_thread )
 117         return;
 118     p_mi->input.p_thread = NULL;
 119
 120     var_DelCallback( p_input_thread, "can-seek",
 121                      input_seekable_changed, p_mi );
 122     var_DelCallback( p_input_thread, "can-pause",
 123                     input_pausable_changed, p_mi );
 124     var_DelCallback( p_input_thread, "program-scrambled",
 125                     input_scrambled_changed, p_mi );
 126     var_DelCallback( p_input_thread, "intf-event",
 127                      input_event_changed, p_mi );
 128
 129     /* We owned this one */
 130     input_Stop( p_input_thread, b_input_abort );
 131     input_Close( p_input_thread );
 132 }
 133
 134 /*
 135  * Retrieve the input thread. Be sure to release the object
 136  * once you are done with it. (libvlc Internal)
 137  */
 138 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
 139 {
 140     input_thread_t *p_input_thread;
 141
 142     assert( p_mi );
 143
 144     lock_input(p_mi);
 145     p_input_thread = p_mi->input.p_thread;
 146     if( p_input_thread )
 147         vlc_object_hold( p_input_thread );
 148     else
 149         libvlc_printerr( "No active input" );
 150     unlock_input(p_mi);
 151
 152     return p_input_thread;
 153 }
 154
 155 /*
 156  * Set the internal state of the media_player. (media player Internal)
 157  *
 158  * Function will lock the media_player.
 159  */
 160 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
 161     bool b_locked )
 162 {
 163     if(!b_locked)
 164         lock(p_mi);
 165     p_mi->state = state;
 166
 167     libvlc_media_t *media = p_mi->p_md;
 168     if (media)
 169         libvlc_media_retain(media);
 170
 171     if(!b_locked)
 172         unlock(p_mi);
 173
 174     if (media)
 175     {
 176         // Also set the state of the corresponding media
 177         // This is strictly for convenience.
 178         libvlc_media_set_state(media, state);
 179
 180         libvlc_media_release(media);
 181     }
 182 }
 183
 184 static int
 185 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
 186                         vlc_value_t oldval, vlc_value_t newval,
 187                         void * p_userdata )
 188 {
 189     VLC_UNUSED(oldval);
 190     VLC_UNUSED(p_this);
 191     VLC_UNUSED(psz_cmd);
 192     libvlc_media_player_t * p_mi = p_userdata;
 193     libvlc_event_t event;
 194
 195     event.type = libvlc_MediaPlayerSeekableChanged;
 196     event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
 197
 198     libvlc_event_send( p_mi->p_event_manager, &event );
 199     return VLC_SUCCESS;
 200 }
 201
 202 static int
 203 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
 204                         vlc_value_t oldval, vlc_value_t newval,
 205                         void * p_userdata )
 206 {
 207     VLC_UNUSED(oldval);
 208     VLC_UNUSED(p_this);
 209     VLC_UNUSED(psz_cmd);
 210     libvlc_media_player_t * p_mi = p_userdata;
 211     libvlc_event_t event;
 212
 213     event.type = libvlc_MediaPlayerPausableChanged;
 214     event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
 215
 216     libvlc_event_send( p_mi->p_event_manager, &event );
 217     return VLC_SUCCESS;
 218 }
 219
 220 static int
 221 input_scrambled_changed( vlc_object_t * p_this, char const * psz_cmd,
 222                         vlc_value_t oldval, vlc_value_t newval,
 223                         void * p_userdata )
 224 {
 225     VLC_UNUSED(oldval);
 226     VLC_UNUSED(p_this);
 227     VLC_UNUSED(psz_cmd);
 228     libvlc_media_player_t * p_mi = p_userdata;
 229     libvlc_event_t event;
 230
 231     event.type = libvlc_MediaPlayerScrambledChanged;
 232     event.u.media_player_scrambled_changed.new_scrambled = newval.b_bool;
 233
 234     libvlc_event_send( p_mi->p_event_manager, &event );
 235     return VLC_SUCCESS;
 236 }
 237
 238 static int
 239 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
 240                      vlc_value_t oldval, vlc_value_t newval,
 241                      void * p_userdata )
 242 {
 243     VLC_UNUSED(oldval);
 244     input_thread_t * p_input = (input_thread_t *)p_this;
 245     libvlc_media_player_t * p_mi = p_userdata;
 246     libvlc_event_t event;
 247
 248     assert( !strcmp( psz_cmd, "intf-event" ) );
 249
 250     if( newval.i_int == INPUT_EVENT_STATE )
 251     {
 252         libvlc_state_t libvlc_state;
 253
 254         switch ( var_GetInteger( p_input, "state" ) )
 255         {
 256             case INIT_S:
 257                 libvlc_state = libvlc_NothingSpecial;
 258                 event.type = libvlc_MediaPlayerNothingSpecial;
 259                 break;
 260             case OPENING_S:
 261                 libvlc_state = libvlc_Opening;
 262                 event.type = libvlc_MediaPlayerOpening;
 263                 break;
 264             case PLAYING_S:
 265                 libvlc_state = libvlc_Playing;
 266                 event.type = libvlc_MediaPlayerPlaying;
 267                 break;
 268             case PAUSE_S:
 269                 libvlc_state = libvlc_Paused;
 270                 event.type = libvlc_MediaPlayerPaused;
 271                 break;
 272             case END_S:
 273                 libvlc_state = libvlc_Ended;
 274                 event.type = libvlc_MediaPlayerEndReached;
 275                 break;
 276             case ERROR_S:
 277                 libvlc_state = libvlc_Error;
 278                 event.type = libvlc_MediaPlayerEncounteredError;
 279                 break;
 280
 281             default:
 282                 return VLC_SUCCESS;
 283         }
 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_ABORT )
 289     {
 290         libvlc_state_t libvlc_state = libvlc_Stopped;
 291         event.type = libvlc_MediaPlayerStopped;
 292
 293         set_state( p_mi, libvlc_state, false );
 294         libvlc_event_send( p_mi->p_event_manager, &event );
 295     }
 296     else if( newval.i_int == INPUT_EVENT_POSITION )
 297     {
 298         if( var_GetInteger( p_input, "state" ) != PLAYING_S )
 299             return VLC_SUCCESS; /* Don't send the position while stopped */
 300
 301         /* */
 302         event.type = libvlc_MediaPlayerPositionChanged;
 303         event.u.media_player_position_changed.new_position =
 304                                           var_GetFloat( p_input, "position" );
 305         libvlc_event_send( p_mi->p_event_manager, &event );
 306
 307         /* */
 308         event.type = libvlc_MediaPlayerTimeChanged;
 309         event.u.media_player_time_changed.new_time =
 310            from_mtime(var_GetTime( p_input, "time" ));
 311         libvlc_event_send( p_mi->p_event_manager, &event );
 312     }
 313     else if( newval.i_int == INPUT_EVENT_LENGTH )
 314     {
 315         event.type = libvlc_MediaPlayerLengthChanged;
 316         event.u.media_player_length_changed.new_length =
 317            from_mtime(var_GetTime( p_input, "length" ));
 318         libvlc_event_send( p_mi->p_event_manager, &event );
 319     }
 320     else if( newval.i_int == INPUT_EVENT_CACHE )
 321     {
 322         event.type = libvlc_MediaPlayerBuffering;
 323         event.u.media_player_buffering.new_cache = (int)(100 *
 324             var_GetFloat( p_input, "cache" ));
 325         libvlc_event_send( p_mi->p_event_manager, &event );
 326     }
 327     else if( newval.i_int == INPUT_EVENT_VOUT )
 328     {
 329         vout_thread_t **pp_vout;
 330         size_t i_vout;
 331         if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 332         {
 333             i_vout  = 0;
 334         }
 335         else
 336         {
 337             for( size_t i = 0; i < i_vout; i++ )
 338                 vlc_object_release( pp_vout[i] );
 339             free( pp_vout );
 340         }
 341
 342         event.type = libvlc_MediaPlayerVout;
 343         event.u.media_player_vout.new_count = i_vout;
 344         libvlc_event_send( p_mi->p_event_manager, &event );
 345     }
 346
 347     return VLC_SUCCESS;
 348 }
 349
 350 /**************************************************************************
 351  * Snapshot Taken Event.
 352  *
 353  * FIXME: This snapshot API interface makes no sense in media_player.
 354  *************************************************************************/
 355 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
 356                               vlc_value_t oldval, vlc_value_t newval, void *p_data )
 357 {
 358     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
 359
 360     libvlc_media_player_t *mp = p_data;
 361     libvlc_event_t event;
 362     event.type = libvlc_MediaPlayerSnapshotTaken;
 363     event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
 364     libvlc_event_send(mp->p_event_manager, &event);
 365
 366     return VLC_SUCCESS;
 367 }
 368
 369 /* */
 370 static void libvlc_media_player_destroy( libvlc_media_player_t * );
 371
 372
 373 /**************************************************************************
 374  * Create a Media Instance object.
 375  *
 376  * Refcount strategy:
 377  * - All items created by _new start with a refcount set to 1.
 378  * - Accessor _release decrease the refcount by 1, if after that
 379  *   operation the refcount is 0, the object is destroyed.
 380  * - Accessor _retain increase the refcount by 1 (XXX: to implement)
 381  *
 382  * Object locking strategy:
 383  * - No lock held while in constructor.
 384  * - When accessing any member variable this lock is held. (XXX who locks?)
 385  * - When attempting to destroy the object the lock is also held.
 386  **************************************************************************/
 387 libvlc_media_player_t *
 388 libvlc_media_player_new( libvlc_instance_t *instance )
 389 {
 390     libvlc_media_player_t * mp;
 391
 392     assert(instance);
 393
 394     mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
 395     if (unlikely(mp == NULL))
 396     {
 397         libvlc_printerr("Not enough memory");
 398         return NULL;
 399     }
 400
 401     /* Input */
 402     var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
 403
 404     /* Video */
 405     var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
 406     var_Create (mp, "window", VLC_VAR_STRING);
 407     var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
 408     var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
 409     var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
 410     var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
 411     var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
 412     var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
 413     var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 414     var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 415     var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 416     var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 417     var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
 418 #if defined (_WIN32) || defined (__OS2__)
 419     var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
 420 #endif
 421 #ifdef __APPLE__
 422     var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
 423     var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
 424 #endif
 425
 426     var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
 427     var_SetBool (mp, "keyboard-events", true);
 428     var_Create (mp, "mouse-events", VLC_VAR_BOOL);
 429     var_SetBool (mp, "mouse-events", true);
 430
 431     var_Create (mp, "fullscreen", VLC_VAR_BOOL);
 432     var_Create (mp, "autoscale", VLC_VAR_BOOL);
 433     var_SetBool (mp, "autoscale", true);
 434     var_Create (mp, "scale", VLC_VAR_FLOAT);
 435     var_SetFloat (mp, "scale", 1.);
 436     var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
 437     var_Create (mp, "crop", VLC_VAR_STRING);
 438     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
 439     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 440
 441     var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
 442
 443     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
 444     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 445     var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 446     var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 447     var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 448     var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 449     var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 450     var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 451     var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 452
 453     var_Create (mp, "logo-file", VLC_VAR_STRING);
 454     var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 455     var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 456     var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 457     var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 458     var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 459     var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 460
 461     var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 462     var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 463     var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 464     var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 465     var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 466
 467      /* Audio */
 468     var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 469     var_Create (mp, "mute", VLC_VAR_BOOL);
 470     var_Create (mp, "volume", VLC_VAR_FLOAT);
 471     var_Create (mp, "corks", VLC_VAR_INTEGER);
 472     var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
 473     var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
 474     var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
 475     var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
 476     var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
 477     var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
 478     var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
 479     var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
 480     var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
 481     var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 482     var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 483     var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 484
 485     /* Video Title */
 486     var_Create (mp, "video-title-show", VLC_VAR_BOOL);
 487     var_Create (mp, "video-title-position", VLC_VAR_INTEGER);
 488     var_Create (mp, "video-title-timeout", VLC_VAR_INTEGER);
 489
 490     /* Equalizer */
 491     var_Create (mp, "equalizer-preamp", VLC_VAR_FLOAT);
 492     var_Create (mp, "equalizer-bands", VLC_VAR_STRING);
 493
 494     mp->p_md = NULL;
 495     mp->state = libvlc_NothingSpecial;
 496     mp->p_libvlc_instance = instance;
 497     mp->input.p_thread = NULL;
 498     mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
 499     if (unlikely(mp->input.p_resource == NULL))
 500     {
 501         vlc_object_release(mp);
 502         return NULL;
 503     }
 504     audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
 505     if( aout != NULL )
 506         input_resource_PutAout(mp->input.p_resource, aout);
 507
 508     vlc_mutex_init (&mp->input.lock);
 509     mp->i_refcount = 1;
 510     mp->p_event_manager = libvlc_event_manager_new(mp, instance);
 511     if (unlikely(mp->p_event_manager == NULL))
 512     {
 513         input_resource_Release(mp->input.p_resource);
 514         vlc_object_release(mp);
 515         return NULL;
 516     }
 517     vlc_mutex_init(&mp->object_lock);
 518
 519     register_event(mp, NothingSpecial);
 520     register_event(mp, Opening);
 521     register_event(mp, Buffering);
 522     register_event(mp, Playing);
 523     register_event(mp, Paused);
 524     register_event(mp, Stopped);
 525     register_event(mp, Forward);
 526     register_event(mp, Backward);
 527     register_event(mp, EndReached);
 528     register_event(mp, EncounteredError);
 529     register_event(mp, SeekableChanged);
 530
 531     register_event(mp, PositionChanged);
 532     register_event(mp, TimeChanged);
 533     register_event(mp, LengthChanged);
 534     register_event(mp, TitleChanged);
 535     register_event(mp, PausableChanged);
 536
 537     register_event(mp, Vout);
 538     register_event(mp, ScrambledChanged);
 539
 540     /* Snapshot initialization */
 541     register_event(mp, SnapshotTaken);
 542
 543     register_event(mp, MediaChanged);
 544
 545     /* Attach a var callback to the global object to provide the glue between
 546      * vout_thread that generates the event and media_player that re-emits it
 547      * with its own event manager
 548      *
 549      * FIXME: It's unclear why we want to put this in public API, and why we
 550      * want to expose it in such a limiting and ugly way.
 551      */
 552     var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
 553
 554     libvlc_retain(instance);
 555     return mp;
 556 }
 557
 558 /**************************************************************************
 559  * Create a Media Instance object with a media descriptor.
 560  **************************************************************************/
 561 libvlc_media_player_t *
 562 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
 563 {
 564     libvlc_media_player_t * p_mi;
 565
 566     p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
 567     if( !p_mi )
 568         return NULL;
 569
 570     libvlc_media_retain( p_md );
 571     p_mi->p_md = p_md;
 572
 573     return p_mi;
 574 }
 575
 576 /**************************************************************************
 577  * Destroy a Media Instance object (libvlc internal)
 578  *
 579  * Warning: No lock held here, but hey, this is internal. Caller must lock.
 580  **************************************************************************/
 581 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
 582 {
 583     assert( p_mi );
 584
 585     /* Detach Callback from the main libvlc object */
 586     var_DelCallback( p_mi->p_libvlc,
 587                      "snapshot-file", snapshot_was_taken, p_mi );
 588
 589     /* No need for lock_input() because no other threads knows us anymore */
 590     if( p_mi->input.p_thread )
 591         release_input_thread(p_mi, true);
 592     input_resource_Terminate( p_mi->input.p_resource );
 593     input_resource_Release( p_mi->input.p_resource );
 594     vlc_mutex_destroy( &p_mi->input.lock );
 595
 596     libvlc_event_manager_release( p_mi->p_event_manager );
 597     libvlc_media_release( p_mi->p_md );
 598     vlc_mutex_destroy( &p_mi->object_lock );
 599
 600     libvlc_instance_t *instance = p_mi->p_libvlc_instance;
 601     vlc_object_release( p_mi );
 602     libvlc_release(instance);
 603 }
 604
 605 /**************************************************************************
 606  * Release a Media Instance object.
 607  *
 608  * Function does the locking.
 609  **************************************************************************/
 610 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
 611 {
 612     bool destroy;
 613
 614     assert( p_mi );
 615     lock(p_mi);
 616     destroy = !--p_mi->i_refcount;
 617     unlock(p_mi);
 618
 619     if( destroy )
 620         libvlc_media_player_destroy( p_mi );
 621 }
 622
 623 /**************************************************************************
 624  * Retain a Media Instance object.
 625  *
 626  * Caller must hold the lock.
 627  **************************************************************************/
 628 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
 629 {
 630     assert( p_mi );
 631
 632     lock(p_mi);
 633     p_mi->i_refcount++;
 634     unlock(p_mi);
 635 }
 636
 637 /**************************************************************************
 638  * Set the Media descriptor associated with the instance.
 639  *
 640  * Enter without lock -- function will lock the object.
 641  **************************************************************************/
 642 void libvlc_media_player_set_media(
 643                             libvlc_media_player_t *p_mi,
 644                             libvlc_media_t *p_md )
 645 {
 646     lock_input(p_mi);
 647
 648     /* FIXME I am not sure if it is a user request or on die(eof/error)
 649      * request here */
 650     release_input_thread( p_mi,
 651                           p_mi->input.p_thread &&
 652                           !p_mi->input.p_thread->b_eof &&
 653                           !p_mi->input.p_thread->b_error );
 654
 655     lock( p_mi );
 656     set_state( p_mi, libvlc_NothingSpecial, true );
 657     unlock_input( p_mi );
 658
 659     libvlc_media_release( p_mi->p_md );
 660
 661     if( !p_md )
 662     {
 663         p_mi->p_md = NULL;
 664         unlock(p_mi);
 665         return; /* It is ok to pass a NULL md */
 666     }
 667
 668     libvlc_media_retain( p_md );
 669     p_mi->p_md = p_md;
 670
 671     /* The policy here is to ignore that we were created using a different
 672      * libvlc_instance, because we don't really care */
 673     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 674
 675     unlock(p_mi);
 676
 677     /* Send an event for the newly available media */
 678     libvlc_event_t event;
 679     event.type = libvlc_MediaPlayerMediaChanged;
 680     event.u.media_player_media_changed.new_media = p_md;
 681     libvlc_event_send( p_mi->p_event_manager, &event );
 682
 683 }
 684
 685 /**************************************************************************
 686  * Get the Media descriptor associated with the instance.
 687  **************************************************************************/
 688 libvlc_media_t *
 689 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
 690 {
 691     libvlc_media_t *p_m;
 692
 693     lock(p_mi);
 694     p_m = p_mi->p_md;
 695     if( p_m )
 696         libvlc_media_retain( p_mi->p_md );
 697     unlock(p_mi);
 698     return p_mi->p_md;
 699 }
 700
 701 /**************************************************************************
 702  * Get the event Manager.
 703  **************************************************************************/
 704 libvlc_event_manager_t *
 705 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
 706 {
 707     return p_mi->p_event_manager;
 708 }
 709
 710 /**************************************************************************
 711  * Tell media player to start playing.
 712  **************************************************************************/
 713 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
 714 {
 715     lock_input( p_mi );
 716
 717     input_thread_t *p_input_thread = p_mi->input.p_thread;
 718     if( p_input_thread )
 719     {
 720         /* A thread already exists, send it a play message */
 721         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 722         unlock_input( p_mi );
 723         return 0;
 724     }
 725
 726     /* Ignore previous exception */
 727     lock(p_mi);
 728
 729     if( !p_mi->p_md )
 730     {
 731         unlock(p_mi);
 732         unlock_input( p_mi );
 733         libvlc_printerr( "No associated media descriptor" );
 734         return -1;
 735     }
 736
 737     p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
 738                                    p_mi->input.p_resource );
 739     unlock(p_mi);
 740     if( !p_input_thread )
 741     {
 742         unlock_input(p_mi);
 743         libvlc_printerr( "Not enough memory" );
 744         return -1;
 745     }
 746
 747     var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 748     var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 749     var_AddCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 750     var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 751
 752     if( input_Start( p_input_thread ) )
 753     {
 754         unlock_input(p_mi);
 755         var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 756         var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 757         var_DelCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 758         var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 759         vlc_object_release( p_input_thread );
 760         libvlc_printerr( "Input initialization failure" );
 761         return -1;
 762     }
 763     p_mi->input.p_thread = p_input_thread;
 764     unlock_input(p_mi);
 765     return 0;
 766 }
 767
 768 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
 769 {
 770     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
 771     if( !p_input_thread )
 772         return;
 773
 774     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 775     if( state == libvlc_Playing || state == libvlc_Buffering )
 776     {
 777         if( paused )
 778         {
 779             if( libvlc_media_player_can_pause( p_mi ) )
 780                 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 781             else
 782                 libvlc_media_player_stop( p_mi );
 783         }
 784     }
 785     else
 786     {
 787         if( !paused )
 788             input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 789     }
 790
 791     vlc_object_release( p_input_thread );
 792 }
 793
 794 /**************************************************************************
 795  * Toggle pause.
 796  **************************************************************************/
 797 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
 798 {
 799     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 800     bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
 801
 802     libvlc_media_player_set_pause( p_mi, playing );
 803 }
 804
 805 /**************************************************************************
 806  * Tells whether the media player is currently playing.
 807  *
 808  * Enter with lock held.
 809  **************************************************************************/
 810 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
 811 {
 812     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 813     return (libvlc_Playing == state) || (libvlc_Buffering == state);
 814 }
 815
 816 /**************************************************************************
 817  * Stop playing.
 818  **************************************************************************/
 819 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
 820 {
 821     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 822
 823     lock_input(p_mi);
 824     release_input_thread( p_mi, true ); /* This will stop the input thread */
 825
 826     /* Force to go to stopped state, in case we were in Ended, or Error
 827      * state. */
 828     if( state != libvlc_Stopped )
 829     {
 830         set_state( p_mi, libvlc_Stopped, false );
 831
 832         /* Construct and send the event */
 833         libvlc_event_t event;
 834         event.type = libvlc_MediaPlayerStopped;
 835         libvlc_event_send( p_mi->p_event_manager, &event );
 836     }
 837
 838     input_resource_Terminate( p_mi->input.p_resource );
 839     unlock_input(p_mi);
 840 }
 841
 842
 843 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
 844     void *(*lock_cb) (void *, void **),
 845     void (*unlock_cb) (void *, void *, void *const *),
 846     void (*display_cb) (void *, void *),
 847     void *opaque )
 848 {
 849     var_SetAddress( mp, "vmem-lock", lock_cb );
 850     var_SetAddress( mp, "vmem-unlock", unlock_cb );
 851     var_SetAddress( mp, "vmem-display", display_cb );
 852     var_SetAddress( mp, "vmem-data", opaque );
 853     var_SetString( mp, "vout", "vmem" );
 854 }
 855
 856 void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
 857                                         libvlc_video_format_cb setup,
 858                                         libvlc_video_cleanup_cb cleanup )
 859 {
 860     var_SetAddress( mp, "vmem-setup", setup );
 861     var_SetAddress( mp, "vmem-cleanup", cleanup );
 862 }
 863
 864 void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
 865                               unsigned width, unsigned height, unsigned pitch )
 866 {
 867     var_SetString( mp, "vmem-chroma", chroma );
 868     var_SetInteger( mp, "vmem-width", width );
 869     var_SetInteger( mp, "vmem-height", height );
 870     var_SetInteger( mp, "vmem-pitch", pitch );
 871 }
 872
 873 /**************************************************************************
 874  * set_nsobject
 875  **************************************************************************/
 876 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
 877                                         void * drawable )
 878 {
 879     assert (p_mi != NULL);
 880 #ifdef __APPLE__
 881     var_SetAddress (p_mi, "drawable-nsobject", drawable);
 882 #else
 883     (void) p_mi; (void)drawable;
 884 #endif
 885 }
 886
 887 /**************************************************************************
 888  * get_nsobject
 889  **************************************************************************/
 890 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
 891 {
 892     assert (p_mi != NULL);
 893 #ifdef __APPLE__
 894     return var_GetAddress (p_mi, "drawable-nsobject");
 895 #else
 896     return NULL;
 897 #endif
 898 }
 899
 900 /**************************************************************************
 901  * set_agl
 902  **************************************************************************/
 903 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
 904                                   uint32_t drawable )
 905 {
 906 #ifdef __APPLE__
 907     var_SetInteger (p_mi, "drawable-agl", drawable);
 908 #else
 909     (void) p_mi; (void)drawable;
 910 #endif
 911 }
 912
 913 /**************************************************************************
 914  * get_agl
 915  **************************************************************************/
 916 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
 917 {
 918     assert (p_mi != NULL);
 919 #ifdef __APPLE__
 920     return var_GetInteger (p_mi, "drawable-agl");
 921 #else
 922     return 0;
 923 #endif
 924 }
 925
 926 /**************************************************************************
 927  * set_xwindow
 928  **************************************************************************/
 929 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
 930                                       uint32_t drawable )
 931 {
 932     assert (p_mi != NULL);
 933
 934     var_SetString (p_mi, "vout", drawable ? "xid" : "any");
 935     var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
 936     var_SetInteger (p_mi, "drawable-xid", drawable);
 937 }
 938
 939 /**************************************************************************
 940  * get_xwindow
 941  **************************************************************************/
 942 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
 943 {
 944     return var_GetInteger (p_mi, "drawable-xid");
 945 }
 946
 947 /**************************************************************************
 948  * set_hwnd
 949  **************************************************************************/
 950 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
 951                                    void *drawable )
 952 {
 953     assert (p_mi != NULL);
 954 #if defined (_WIN32) || defined (__OS2__)
 955     var_SetString (p_mi, "window",
 956                    (drawable != NULL) ? "embed-hwnd,any" : "");
 957     var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
 958 #else
 959     (void) p_mi; (void) drawable;
 960 #endif
 961 }
 962
 963 /**************************************************************************
 964  * get_hwnd
 965  **************************************************************************/
 966 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
 967 {
 968     assert (p_mi != NULL);
 969 #if defined (_WIN32) || defined (__OS2__)
 970     return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
 971 #else
 972     return NULL;
 973 #endif
 974 }
 975
 976 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
 977                                  libvlc_audio_play_cb play_cb,
 978                                  libvlc_audio_pause_cb pause_cb,
 979                                  libvlc_audio_resume_cb resume_cb,
 980                                  libvlc_audio_flush_cb flush_cb,
 981                                  libvlc_audio_drain_cb drain_cb,
 982                                  void *opaque )
 983 {
 984     var_SetAddress( mp, "amem-play", play_cb );
 985     var_SetAddress( mp, "amem-pause", pause_cb );
 986     var_SetAddress( mp, "amem-resume", resume_cb );
 987     var_SetAddress( mp, "amem-flush", flush_cb );
 988     var_SetAddress( mp, "amem-drain", drain_cb );
 989     var_SetAddress( mp, "amem-data", opaque );
 990     var_SetString( mp, "aout", "amem,none" );
 991 }
 992
 993 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
 994                                        libvlc_audio_set_volume_cb cb )
 995 {
 996     var_SetAddress( mp, "amem-set-volume", cb );
 997 }
 998
 999 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
1000                                         libvlc_audio_setup_cb setup,
1001                                         libvlc_audio_cleanup_cb cleanup )
1002 {
1003     var_SetAddress( mp, "amem-setup", setup );
1004     var_SetAddress( mp, "amem-cleanup", cleanup );
1005 }
1006
1007 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
1008                               unsigned rate, unsigned channels )
1009 {
1010     var_SetString( mp, "amem-format", format );
1011     var_SetInteger( mp, "amem-rate", rate );
1012     var_SetInteger( mp, "amem-channels", channels );
1013 }
1014
1015
1016 /**************************************************************************
1017  * Getters for stream information
1018  **************************************************************************/
1019 libvlc_time_t libvlc_media_player_get_length(
1020                              libvlc_media_player_t *p_mi )
1021 {
1022     input_thread_t *p_input_thread;
1023     libvlc_time_t i_time;
1024
1025     p_input_thread = libvlc_get_input_thread ( p_mi );
1026     if( !p_input_thread )
1027         return -1;
1028
1029     i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1030     vlc_object_release( p_input_thread );
1031
1032     return i_time;
1033 }
1034
1035 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1036 {
1037     input_thread_t *p_input_thread;
1038     libvlc_time_t i_time;
1039
1040     p_input_thread = libvlc_get_input_thread ( p_mi );
1041     if( !p_input_thread )
1042         return -1;
1043
1044     i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1045     vlc_object_release( p_input_thread );
1046     return i_time;
1047 }
1048
1049 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1050                                    libvlc_time_t i_time )
1051 {
1052     input_thread_t *p_input_thread;
1053
1054     p_input_thread = libvlc_get_input_thread ( p_mi );
1055     if( !p_input_thread )
1056         return;
1057
1058     var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1059     vlc_object_release( p_input_thread );
1060 }
1061
1062 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1063                                        float position )
1064 {
1065     input_thread_t *p_input_thread;
1066
1067     p_input_thread = libvlc_get_input_thread ( p_mi );
1068     if( !p_input_thread )
1069         return;
1070
1071     var_SetFloat( p_input_thread, "position", position );
1072     vlc_object_release( p_input_thread );
1073 }
1074
1075 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1076 {
1077     input_thread_t *p_input_thread;
1078     float f_position;
1079
1080     p_input_thread = libvlc_get_input_thread ( p_mi );
1081     if( !p_input_thread )
1082         return -1.0;
1083
1084     f_position = var_GetFloat( p_input_thread, "position" );
1085     vlc_object_release( p_input_thread );
1086
1087     return f_position;
1088 }
1089
1090 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1091                                       int chapter )
1092 {
1093     input_thread_t *p_input_thread;
1094
1095     p_input_thread = libvlc_get_input_thread ( p_mi );
1096     if( !p_input_thread )
1097         return;
1098
1099     var_SetInteger( p_input_thread, "chapter", chapter );
1100     vlc_object_release( p_input_thread );
1101 }
1102
1103 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1104 {
1105     input_thread_t *p_input_thread;
1106     int i_chapter;
1107
1108     p_input_thread = libvlc_get_input_thread ( p_mi );
1109     if( !p_input_thread )
1110         return -1;
1111
1112     i_chapter = var_GetInteger( p_input_thread, "chapter" );
1113     vlc_object_release( p_input_thread );
1114
1115     return i_chapter;
1116 }
1117
1118 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1119 {
1120     input_thread_t *p_input_thread;
1121     vlc_value_t val;
1122
1123     p_input_thread = libvlc_get_input_thread ( p_mi );
1124     if( !p_input_thread )
1125         return -1;
1126
1127     var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1128     vlc_object_release( p_input_thread );
1129
1130     return val.i_int;
1131 }
1132
1133 int libvlc_media_player_get_chapter_count_for_title(
1134                                  libvlc_media_player_t *p_mi,
1135                                  int i_title )
1136 {
1137     input_thread_t *p_input_thread;
1138     vlc_value_t val;
1139
1140     p_input_thread = libvlc_get_input_thread ( p_mi );
1141     if( !p_input_thread )
1142         return -1;
1143
1144     char *psz_name;
1145     if( asprintf( &psz_name,  "title %2i", i_title ) == -1 )
1146     {
1147         vlc_object_release( p_input_thread );
1148         return -1;
1149     }
1150     var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1151     vlc_object_release( p_input_thread );
1152     free( psz_name );
1153
1154     return val.i_int;
1155 }
1156
1157 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1158                                     int i_title )
1159 {
1160     input_thread_t *p_input_thread;
1161
1162     p_input_thread = libvlc_get_input_thread ( p_mi );
1163     if( !p_input_thread )
1164         return;
1165
1166     var_SetInteger( p_input_thread, "title", i_title );
1167     vlc_object_release( p_input_thread );
1168
1169     //send event
1170     libvlc_event_t event;
1171     event.type = libvlc_MediaPlayerTitleChanged;
1172     event.u.media_player_title_changed.new_title = i_title;
1173     libvlc_event_send( p_mi->p_event_manager, &event );
1174 }
1175
1176 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1177 {
1178     input_thread_t *p_input_thread;
1179     int i_title;
1180
1181     p_input_thread = libvlc_get_input_thread ( p_mi );
1182     if( !p_input_thread )
1183         return -1;
1184
1185     i_title = var_GetInteger( p_input_thread, "title" );
1186     vlc_object_release( p_input_thread );
1187
1188     return i_title;
1189 }
1190
1191 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1192 {
1193     input_thread_t *p_input_thread;
1194     vlc_value_t val;
1195
1196     p_input_thread = libvlc_get_input_thread ( p_mi );
1197     if( !p_input_thread )
1198         return -1;
1199
1200     var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1201     vlc_object_release( p_input_thread );
1202
1203     return val.i_int;
1204 }
1205
1206 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1207 {
1208     input_thread_t *p_input_thread;
1209
1210     p_input_thread = libvlc_get_input_thread ( p_mi );
1211     if( !p_input_thread )
1212         return;
1213
1214     int i_type = var_Type( p_input_thread, "next-chapter" );
1215     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1216                             "next-chapter":"next-title" );
1217
1218     vlc_object_release( p_input_thread );
1219 }
1220
1221 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1222 {
1223     input_thread_t *p_input_thread;
1224
1225     p_input_thread = libvlc_get_input_thread ( p_mi );
1226     if( !p_input_thread )
1227         return;
1228
1229     int i_type = var_Type( p_input_thread, "next-chapter" );
1230     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1231                             "prev-chapter":"prev-title" );
1232
1233     vlc_object_release( p_input_thread );
1234 }
1235
1236 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1237 {
1238     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1239     double f_fps = 0.0;
1240
1241     if( p_input_thread )
1242     {
1243         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1244             f_fps = 0.0;
1245         vlc_object_release( p_input_thread );
1246     }
1247     return f_fps;
1248 }
1249
1250 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1251 {
1252     bool b_will_play;
1253     input_thread_t *p_input_thread =
1254                             libvlc_get_input_thread ( p_mi );
1255     if ( !p_input_thread )
1256         return false;
1257
1258     b_will_play = !p_input_thread->b_dead;
1259     vlc_object_release( p_input_thread );
1260
1261     return b_will_play;
1262 }
1263
1264 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1265 {
1266     var_SetFloat (p_mi, "rate", rate);
1267
1268     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1269     if( !p_input_thread )
1270         return 0;
1271     var_SetFloat( p_input_thread, "rate", rate );
1272     vlc_object_release( p_input_thread );
1273     return 0;
1274 }
1275
1276 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1277 {
1278     return var_GetFloat (p_mi, "rate");
1279 }
1280
1281 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1282 {
1283     lock(p_mi);
1284     libvlc_state_t state = p_mi->state;
1285     unlock(p_mi);
1286     return state;
1287 }
1288
1289 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1290 {
1291     input_thread_t *p_input_thread;
1292     bool b_seekable;
1293
1294     p_input_thread = libvlc_get_input_thread ( p_mi );
1295     if ( !p_input_thread )
1296         return false;
1297     b_seekable = var_GetBool( p_input_thread, "can-seek" );
1298     vlc_object_release( p_input_thread );
1299
1300     return b_seekable;
1301 }
1302
1303 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1304                                    unsigned navigate )
1305 {
1306     static const vlc_action_t map[] =
1307     {
1308         INPUT_NAV_ACTIVATE, INPUT_NAV_UP, INPUT_NAV_DOWN,
1309         INPUT_NAV_LEFT, INPUT_NAV_RIGHT,
1310     };
1311
1312     if( navigate >= sizeof(map) / sizeof(map[0]) )
1313       return;
1314
1315     input_thread_t *p_input = libvlc_get_input_thread ( p_mi );
1316     if ( p_input == NULL )
1317       return;
1318
1319     input_Control( p_input, map[navigate], NULL );
1320     vlc_object_release( p_input );
1321 }
1322
1323 /* internal function, used by audio, video */
1324 libvlc_track_description_t *
1325         libvlc_get_track_description( libvlc_media_player_t *p_mi,
1326                                       const char *psz_variable )
1327 {
1328     input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1329     libvlc_track_description_t *p_track_description = NULL,
1330                                *p_actual, *p_previous;
1331
1332     if( !p_input )
1333         return NULL;
1334
1335     vlc_value_t val_list, text_list;
1336     var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1337
1338     /* no tracks */
1339     if( val_list.p_list->i_count <= 0 )
1340         goto end;
1341
1342     p_track_description = ( libvlc_track_description_t * )
1343         malloc( sizeof( libvlc_track_description_t ) );
1344     if ( !p_track_description )
1345     {
1346         libvlc_printerr( "Not enough memory" );
1347         goto end;
1348     }
1349     p_actual = p_track_description;
1350     p_previous = NULL;
1351     for( int i = 0; i < val_list.p_list->i_count; i++ )
1352     {
1353         if( !p_actual )
1354         {
1355             p_actual = ( libvlc_track_description_t * )
1356                 malloc( sizeof( libvlc_track_description_t ) );
1357             if ( !p_actual )
1358             {
1359                 libvlc_track_description_list_release( p_track_description );
1360                 libvlc_printerr( "Not enough memory" );
1361                 goto end;
1362             }
1363         }
1364         p_actual->i_id = val_list.p_list->p_values[i].i_int;
1365         p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1366         p_actual->p_next = NULL;
1367         if( p_previous )
1368             p_previous->p_next = p_actual;
1369         p_previous = p_actual;
1370         p_actual =  NULL;
1371     }
1372
1373 end:
1374     var_FreeList( &val_list, &text_list );
1375     vlc_object_release( p_input );
1376
1377     return p_track_description;
1378 }
1379
1380 // Deprecated alias for libvlc_track_description_list_release
1381 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1382 {
1383     libvlc_track_description_list_release( p_td );
1384 }
1385
1386 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1387 {
1388     libvlc_track_description_t *p_actual, *p_before;
1389     p_actual = p_td;
1390
1391     while ( p_actual )
1392     {
1393         free( p_actual->psz_name );
1394         p_before = p_actual;
1395         p_actual = p_before->p_next;
1396         free( p_before );
1397     }
1398 }
1399
1400 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1401 {
1402     input_thread_t *p_input_thread;
1403     bool b_can_pause;
1404
1405     p_input_thread = libvlc_get_input_thread ( p_mi );
1406     if ( !p_input_thread )
1407         return false;
1408     b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1409     vlc_object_release( p_input_thread );
1410
1411     return b_can_pause;
1412 }
1413
1414 int libvlc_media_player_program_scrambled( libvlc_media_player_t *p_mi )
1415 {
1416     input_thread_t *p_input_thread;
1417     bool b_program_scrambled;
1418
1419     p_input_thread = libvlc_get_input_thread ( p_mi );
1420     if ( !p_input_thread )
1421         return false;
1422     b_program_scrambled = var_GetBool( p_input_thread, "program-scrambled" );
1423     vlc_object_release( p_input_thread );
1424
1425     return b_program_scrambled;
1426 }
1427
1428 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1429 {
1430     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1431     if( p_input_thread != NULL )
1432     {
1433         var_TriggerCallback( p_input_thread, "frame-next" );
1434         vlc_object_release( p_input_thread );
1435     }
1436 }
1437
1438 void libvlc_media_player_set_video_title_display( libvlc_media_player_t *p_mi, libvlc_position_t position, unsigned timeout )
1439 {
1440     if ( position != libvlc_position_disable )
1441     {
1442         var_SetBool( p_mi, "video-title-show", true );
1443         var_SetInteger( p_mi, "video-title-position", position );
1444         var_SetInteger( p_mi, "video-title-timeout", timeout );
1445     }
1446     else
1447     {
1448         var_SetBool( p_mi, "video-title-show", false );
1449     }
1450 }
1451
1452 /**
1453  * Maximum size of a formatted equalizer amplification band frequency value.
1454  *
1455  * The allowed value range is supposed to be constrained from -20.0 to 20.0.
1456  *
1457  * The format string " %.07f" with a minimum value of "-20" gives a maximum
1458  * string length of e.g. " -19.1234567", i.e. 12 bytes (not including the null
1459  * terminator).
1460  */
1461 #define EQZ_BAND_VALUE_SIZE 12
1462
1463 int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
1464 {
1465     float f_preamp;
1466     char *psz_bands;
1467
1468     if ( p_equalizer )
1469     {
1470         f_preamp = p_equalizer->f_preamp;
1471
1472         psz_bands = malloc( EQZ_BANDS_MAX * EQZ_BAND_VALUE_SIZE + 1 );
1473         if ( unlikely( psz_bands == NULL ) )
1474             return -1;
1475
1476         char *p = psz_bands;
1477         int c;
1478         for ( int i = 0; i < EQZ_BANDS_MAX; i++ )
1479         {
1480             c = snprintf( p, EQZ_BAND_VALUE_SIZE + 1, " %.07f", p_equalizer->f_amp[i] );
1481             if ( unlikely( c >= EQZ_BAND_VALUE_SIZE + 1 ) )
1482             {
1483                 free( psz_bands );
1484                 return -1;
1485             }
1486
1487             p += c;
1488         }
1489     }
1490     else
1491     {
1492         f_preamp = 0.f;
1493         psz_bands = NULL;
1494     }
1495
1496     var_SetFloat( p_mi, "equalizer-preamp", f_preamp );
1497     var_SetString( p_mi, "equalizer-bands", psz_bands );
1498
1499     audio_output_t *p_aout = input_resource_HoldAout( p_mi->input.p_resource );
1500     if ( p_aout )
1501     {
1502         var_SetFloat( p_aout, "equalizer-preamp", f_preamp );
1503         var_SetString( p_aout, "equalizer-bands", psz_bands );
1504
1505         vlc_object_release( p_aout );
1506     }
1507
1508     free( psz_bands );
1509     return 0;
1510 }