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 input_es_changed( vlc_object_t * p_this, char const * psz_cmd,
  62                   int action, vlc_value_t *p_val,
  63                   void *p_userdata);
  64
  65 static int
  66 input_es_selected( vlc_object_t * p_this, char const * psz_cmd,
  67                    vlc_value_t oldval, vlc_value_t newval,
  68                    void * p_userdata );
  69
  70 static void
  71 add_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi );
  72
  73 static void
  74 del_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi );
  75
  76 static int
  77 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
  78                     vlc_value_t oldval, vlc_value_t newval, void *p_data );
  79
  80 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
  81
  82 /*
  83  * Shortcuts
  84  */
  85
  86 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
  87 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
  88 {
  89     libvlc_event_manager_register_event_type(mp->p_event_manager, type);
  90 }
  91
  92 /*
  93  * The input lock protects the input and input resource pointer.
  94  * It MUST NOT be used from callbacks.
  95  *
  96  * The object lock protects the reset, namely the media and the player state.
  97  * It can, and usually needs to be taken from callbacks.
  98  * The object lock can be acquired under the input lock... and consequently
  99  * the opposite order is STRICTLY PROHIBITED.
 100  */
 101 static inline void lock(libvlc_media_player_t *mp)
 102 {
 103     vlc_mutex_lock(&mp->object_lock);
 104 }
 105
 106 static inline void unlock(libvlc_media_player_t *mp)
 107 {
 108     vlc_mutex_unlock(&mp->object_lock);
 109 }
 110
 111 static inline void lock_input(libvlc_media_player_t *mp)
 112 {
 113     vlc_mutex_lock(&mp->input.lock);
 114 }
 115
 116 static inline void unlock_input(libvlc_media_player_t *mp)
 117 {
 118     vlc_mutex_unlock(&mp->input.lock);
 119 }
 120
 121 /*
 122  * Release the associated input thread.
 123  *
 124  * Object lock is NOT held.
 125  * Input lock is held or instance is being destroyed.
 126  */
 127 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
 128 {
 129     assert( p_mi );
 130
 131     input_thread_t *p_input_thread = p_mi->input.p_thread;
 132     if( !p_input_thread )
 133         return;
 134     p_mi->input.p_thread = NULL;
 135
 136     var_DelCallback( p_input_thread, "can-seek",
 137                      input_seekable_changed, p_mi );
 138     var_DelCallback( p_input_thread, "can-pause",
 139                     input_pausable_changed, p_mi );
 140     var_DelCallback( p_input_thread, "program-scrambled",
 141                     input_scrambled_changed, p_mi );
 142     var_DelCallback( p_input_thread, "intf-event",
 143                      input_event_changed, p_mi );
 144     del_es_callbacks( p_input_thread, p_mi );
 145
 146     /* We owned this one */
 147     input_Stop( p_input_thread, b_input_abort );
 148     input_Close( p_input_thread );
 149 }
 150
 151 /*
 152  * Retrieve the input thread. Be sure to release the object
 153  * once you are done with it. (libvlc Internal)
 154  */
 155 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
 156 {
 157     input_thread_t *p_input_thread;
 158
 159     assert( p_mi );
 160
 161     lock_input(p_mi);
 162     p_input_thread = p_mi->input.p_thread;
 163     if( p_input_thread )
 164         vlc_object_hold( p_input_thread );
 165     else
 166         libvlc_printerr( "No active input" );
 167     unlock_input(p_mi);
 168
 169     return p_input_thread;
 170 }
 171
 172 /*
 173  * Set the internal state of the media_player. (media player Internal)
 174  *
 175  * Function will lock the media_player.
 176  */
 177 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
 178     bool b_locked )
 179 {
 180     if(!b_locked)
 181         lock(p_mi);
 182     p_mi->state = state;
 183
 184     libvlc_media_t *media = p_mi->p_md;
 185     if (media)
 186         libvlc_media_retain(media);
 187
 188     if(!b_locked)
 189         unlock(p_mi);
 190
 191     if (media)
 192     {
 193         // Also set the state of the corresponding media
 194         // This is strictly for convenience.
 195         libvlc_media_set_state(media, state);
 196
 197         libvlc_media_release(media);
 198     }
 199 }
 200
 201 static int
 202 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
 203                         vlc_value_t oldval, vlc_value_t newval,
 204                         void * p_userdata )
 205 {
 206     VLC_UNUSED(oldval);
 207     VLC_UNUSED(p_this);
 208     VLC_UNUSED(psz_cmd);
 209     libvlc_media_player_t * p_mi = p_userdata;
 210     libvlc_event_t event;
 211
 212     event.type = libvlc_MediaPlayerSeekableChanged;
 213     event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
 214
 215     libvlc_event_send( p_mi->p_event_manager, &event );
 216     return VLC_SUCCESS;
 217 }
 218
 219 static int
 220 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
 221                         vlc_value_t oldval, vlc_value_t newval,
 222                         void * p_userdata )
 223 {
 224     VLC_UNUSED(oldval);
 225     VLC_UNUSED(p_this);
 226     VLC_UNUSED(psz_cmd);
 227     libvlc_media_player_t * p_mi = p_userdata;
 228     libvlc_event_t event;
 229
 230     event.type = libvlc_MediaPlayerPausableChanged;
 231     event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
 232
 233     libvlc_event_send( p_mi->p_event_manager, &event );
 234     return VLC_SUCCESS;
 235 }
 236
 237 static int
 238 input_scrambled_changed( vlc_object_t * p_this, char const * psz_cmd,
 239                         vlc_value_t oldval, vlc_value_t newval,
 240                         void * p_userdata )
 241 {
 242     VLC_UNUSED(oldval);
 243     VLC_UNUSED(p_this);
 244     VLC_UNUSED(psz_cmd);
 245     libvlc_media_player_t * p_mi = p_userdata;
 246     libvlc_event_t event;
 247
 248     event.type = libvlc_MediaPlayerScrambledChanged;
 249     event.u.media_player_scrambled_changed.new_scrambled = newval.b_bool;
 250
 251     libvlc_event_send( p_mi->p_event_manager, &event );
 252     return VLC_SUCCESS;
 253 }
 254
 255 static int
 256 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
 257                      vlc_value_t oldval, vlc_value_t newval,
 258                      void * p_userdata )
 259 {
 260     VLC_UNUSED(oldval);
 261     input_thread_t * p_input = (input_thread_t *)p_this;
 262     libvlc_media_player_t * p_mi = p_userdata;
 263     libvlc_event_t event;
 264
 265     assert( !strcmp( psz_cmd, "intf-event" ) );
 266
 267     if( newval.i_int == INPUT_EVENT_STATE )
 268     {
 269         libvlc_state_t libvlc_state;
 270
 271         switch ( var_GetInteger( p_input, "state" ) )
 272         {
 273             case INIT_S:
 274                 libvlc_state = libvlc_NothingSpecial;
 275                 event.type = libvlc_MediaPlayerNothingSpecial;
 276                 break;
 277             case OPENING_S:
 278                 libvlc_state = libvlc_Opening;
 279                 event.type = libvlc_MediaPlayerOpening;
 280                 break;
 281             case PLAYING_S:
 282                 libvlc_state = libvlc_Playing;
 283                 event.type = libvlc_MediaPlayerPlaying;
 284                 break;
 285             case PAUSE_S:
 286                 libvlc_state = libvlc_Paused;
 287                 event.type = libvlc_MediaPlayerPaused;
 288                 break;
 289             case END_S:
 290                 libvlc_state = libvlc_Ended;
 291                 event.type = libvlc_MediaPlayerEndReached;
 292                 break;
 293             case ERROR_S:
 294                 libvlc_state = libvlc_Error;
 295                 event.type = libvlc_MediaPlayerEncounteredError;
 296                 break;
 297
 298             default:
 299                 return VLC_SUCCESS;
 300         }
 301
 302         set_state( p_mi, libvlc_state, false );
 303         libvlc_event_send( p_mi->p_event_manager, &event );
 304     }
 305     else if( newval.i_int == INPUT_EVENT_ABORT )
 306     {
 307         libvlc_state_t libvlc_state = libvlc_Stopped;
 308         event.type = libvlc_MediaPlayerStopped;
 309
 310         set_state( p_mi, libvlc_state, false );
 311         libvlc_event_send( p_mi->p_event_manager, &event );
 312     }
 313     else if( newval.i_int == INPUT_EVENT_POSITION )
 314     {
 315         if( var_GetInteger( p_input, "state" ) != PLAYING_S )
 316             return VLC_SUCCESS; /* Don't send the position while stopped */
 317
 318         /* */
 319         event.type = libvlc_MediaPlayerPositionChanged;
 320         event.u.media_player_position_changed.new_position =
 321                                           var_GetFloat( p_input, "position" );
 322         libvlc_event_send( p_mi->p_event_manager, &event );
 323
 324         /* */
 325         event.type = libvlc_MediaPlayerTimeChanged;
 326         event.u.media_player_time_changed.new_time =
 327            from_mtime(var_GetTime( p_input, "time" ));
 328         libvlc_event_send( p_mi->p_event_manager, &event );
 329     }
 330     else if( newval.i_int == INPUT_EVENT_LENGTH )
 331     {
 332         event.type = libvlc_MediaPlayerLengthChanged;
 333         event.u.media_player_length_changed.new_length =
 334            from_mtime(var_GetTime( p_input, "length" ));
 335         libvlc_event_send( p_mi->p_event_manager, &event );
 336     }
 337     else if( newval.i_int == INPUT_EVENT_CACHE )
 338     {
 339         event.type = libvlc_MediaPlayerBuffering;
 340         event.u.media_player_buffering.new_cache = (int)(100 *
 341             var_GetFloat( p_input, "cache" ));
 342         libvlc_event_send( p_mi->p_event_manager, &event );
 343     }
 344     else if( newval.i_int == INPUT_EVENT_VOUT )
 345     {
 346         vout_thread_t **pp_vout;
 347         size_t i_vout;
 348         if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 349         {
 350             i_vout  = 0;
 351         }
 352         else
 353         {
 354             for( size_t i = 0; i < i_vout; i++ )
 355                 vlc_object_release( pp_vout[i] );
 356             free( pp_vout );
 357         }
 358
 359         event.type = libvlc_MediaPlayerVout;
 360         event.u.media_player_vout.new_count = i_vout;
 361         libvlc_event_send( p_mi->p_event_manager, &event );
 362     }
 363
 364     return VLC_SUCCESS;
 365 }
 366
 367 static int track_type_from_name(const char *psz_name)
 368 {
 369    if( !strcmp( psz_name, "video-es" ) )
 370        return libvlc_track_video;
 371     else if( !strcmp( psz_name, "audio-es" ) )
 372         return libvlc_track_audio;
 373     else if( !strcmp( psz_name, "spu-es" ) )
 374         return libvlc_track_text;
 375     else
 376         return libvlc_track_unknown;
 377 }
 378
 379 static int input_es_changed( vlc_object_t *p_this,
 380                              char const *psz_cmd,
 381                              int action,
 382                              vlc_value_t *p_val,
 383                              void *p_userdata )
 384 {
 385     VLC_UNUSED(p_this);
 386     libvlc_media_player_t *mp = p_userdata;
 387     libvlc_event_t event;
 388
 389     /* Ignore the "Disable" element */
 390     if (p_val && p_val->i_int < 0)
 391         return VLC_EGENERIC;
 392
 393     switch (action)
 394     {
 395     case VLC_VAR_ADDCHOICE:
 396         event.type = libvlc_MediaPlayerESAdded;
 397         break;
 398     case VLC_VAR_DELCHOICE:
 399     case VLC_VAR_CLEARCHOICES:
 400         event.type = libvlc_MediaPlayerESDeleted;
 401         break;
 402     default:
 403         return VLC_EGENERIC;
 404     }
 405
 406     event.u.media_player_es_changed.i_type = track_type_from_name(psz_cmd);
 407
 408     int i_id;
 409     if (action != VLC_VAR_CLEARCHOICES)
 410     {
 411         if (!p_val)
 412             return VLC_EGENERIC;
 413         i_id = p_val->i_int;
 414     }
 415     else
 416     {
 417         /* -1 means all ES tracks of this type were deleted. */
 418         i_id = -1;
 419     }
 420     event.u.media_player_es_changed.i_id = i_id;
 421
 422     libvlc_event_send(mp->p_event_manager, &event);
 423
 424     return VLC_SUCCESS;
 425 }
 426
 427 static int
 428 input_es_selected( vlc_object_t * p_this, char const * psz_cmd,
 429                    vlc_value_t oldval, vlc_value_t newval,
 430                    void * p_userdata )
 431 {
 432     VLC_UNUSED(p_this);
 433     VLC_UNUSED(oldval);
 434     libvlc_media_player_t *mp = p_userdata;
 435     libvlc_event_t event;
 436
 437     event.type = libvlc_MediaPlayerESSelected;
 438     event.u.media_player_es_changed.i_type = track_type_from_name(psz_cmd);
 439     event.u.media_player_es_changed.i_id = newval.i_int;
 440
 441     libvlc_event_send(mp->p_event_manager, &event);
 442
 443     return VLC_SUCCESS;
 444 }
 445
 446 /**************************************************************************
 447  * Snapshot Taken Event.
 448  *
 449  * FIXME: This snapshot API interface makes no sense in media_player.
 450  *************************************************************************/
 451 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
 452                               vlc_value_t oldval, vlc_value_t newval, void *p_data )
 453 {
 454     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
 455
 456     libvlc_media_player_t *mp = p_data;
 457     libvlc_event_t event;
 458     event.type = libvlc_MediaPlayerSnapshotTaken;
 459     event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
 460     libvlc_event_send(mp->p_event_manager, &event);
 461
 462     return VLC_SUCCESS;
 463 }
 464
 465 /* */
 466 static void libvlc_media_player_destroy( libvlc_media_player_t * );
 467
 468
 469 /**************************************************************************
 470  * Create a Media Instance object.
 471  *
 472  * Refcount strategy:
 473  * - All items created by _new start with a refcount set to 1.
 474  * - Accessor _release decrease the refcount by 1, if after that
 475  *   operation the refcount is 0, the object is destroyed.
 476  * - Accessor _retain increase the refcount by 1 (XXX: to implement)
 477  *
 478  * Object locking strategy:
 479  * - No lock held while in constructor.
 480  * - When accessing any member variable this lock is held. (XXX who locks?)
 481  * - When attempting to destroy the object the lock is also held.
 482  **************************************************************************/
 483 libvlc_media_player_t *
 484 libvlc_media_player_new( libvlc_instance_t *instance )
 485 {
 486     libvlc_media_player_t * mp;
 487
 488     assert(instance);
 489
 490     mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
 491     if (unlikely(mp == NULL))
 492     {
 493         libvlc_printerr("Not enough memory");
 494         return NULL;
 495     }
 496
 497     /* Input */
 498     var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
 499
 500     /* Video */
 501     var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
 502     var_Create (mp, "window", VLC_VAR_STRING);
 503     var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
 504     var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
 505     var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
 506     var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
 507     var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
 508     var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
 509     var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 510     var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 511     var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 512     var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 513     var_Create (mp, "avcodec-hw", VLC_VAR_STRING);
 514     var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
 515 #if defined (_WIN32) || defined (__OS2__)
 516     var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
 517 #endif
 518 #ifdef __APPLE__
 519     var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
 520     var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
 521 #endif
 522
 523     var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
 524     var_SetBool (mp, "keyboard-events", true);
 525     var_Create (mp, "mouse-events", VLC_VAR_BOOL);
 526     var_SetBool (mp, "mouse-events", true);
 527
 528     var_Create (mp, "fullscreen", VLC_VAR_BOOL);
 529     var_Create (mp, "autoscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
 530     var_Create (mp, "zoom", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 531     var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
 532     var_Create (mp, "crop", VLC_VAR_STRING);
 533     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
 534     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 535
 536     var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
 537
 538     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
 539     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 540     var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 541     var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 542     var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 543     var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 544     var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 545     var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 546     var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 547
 548     var_Create (mp, "logo-file", VLC_VAR_STRING);
 549     var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 550     var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 551     var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 552     var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 553     var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 554     var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 555
 556     var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 557     var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 558     var_Create (mp, "hue", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 559     var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 560     var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 561
 562      /* Audio */
 563     var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 564     var_Create (mp, "mute", VLC_VAR_BOOL);
 565     var_Create (mp, "volume", VLC_VAR_FLOAT);
 566     var_Create (mp, "corks", VLC_VAR_INTEGER);
 567     var_Create (mp, "audio-filter", VLC_VAR_STRING);
 568     var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
 569     var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
 570     var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
 571     var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
 572     var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
 573     var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
 574     var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
 575     var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
 576     var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
 577     var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 578     var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 579     var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 580
 581     /* Video Title */
 582     var_Create (mp, "video-title-show", VLC_VAR_BOOL);
 583     var_Create (mp, "video-title-position", VLC_VAR_INTEGER);
 584     var_Create (mp, "video-title-timeout", VLC_VAR_INTEGER);
 585
 586     /* Equalizer */
 587     var_Create (mp, "equalizer-preamp", VLC_VAR_FLOAT);
 588     var_Create (mp, "equalizer-vlcfreqs", VLC_VAR_BOOL);
 589     var_Create (mp, "equalizer-bands", VLC_VAR_STRING);
 590
 591     mp->p_md = NULL;
 592     mp->state = libvlc_NothingSpecial;
 593     mp->p_libvlc_instance = instance;
 594     mp->input.p_thread = NULL;
 595     mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
 596     if (unlikely(mp->input.p_resource == NULL))
 597     {
 598         vlc_object_release(mp);
 599         return NULL;
 600     }
 601     audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
 602     if( aout != NULL )
 603         input_resource_PutAout(mp->input.p_resource, aout);
 604
 605     vlc_mutex_init (&mp->input.lock);
 606     mp->i_refcount = 1;
 607     mp->p_event_manager = libvlc_event_manager_new(mp, instance);
 608     if (unlikely(mp->p_event_manager == NULL))
 609     {
 610         input_resource_Release(mp->input.p_resource);
 611         vlc_object_release(mp);
 612         return NULL;
 613     }
 614     vlc_mutex_init(&mp->object_lock);
 615
 616     register_event(mp, NothingSpecial);
 617     register_event(mp, Opening);
 618     register_event(mp, Buffering);
 619     register_event(mp, Playing);
 620     register_event(mp, Paused);
 621     register_event(mp, Stopped);
 622     register_event(mp, Forward);
 623     register_event(mp, Backward);
 624     register_event(mp, EndReached);
 625     register_event(mp, EncounteredError);
 626     register_event(mp, SeekableChanged);
 627
 628     register_event(mp, PositionChanged);
 629     register_event(mp, TimeChanged);
 630     register_event(mp, LengthChanged);
 631     register_event(mp, TitleChanged);
 632     register_event(mp, PausableChanged);
 633
 634     register_event(mp, Vout);
 635     register_event(mp, ScrambledChanged);
 636     register_event(mp, ESAdded);
 637     register_event(mp, ESDeleted);
 638     register_event(mp, ESSelected);
 639
 640     /* Snapshot initialization */
 641     register_event(mp, SnapshotTaken);
 642
 643     register_event(mp, MediaChanged);
 644
 645     /* Attach a var callback to the global object to provide the glue between
 646      * vout_thread that generates the event and media_player that re-emits it
 647      * with its own event manager
 648      *
 649      * FIXME: It's unclear why we want to put this in public API, and why we
 650      * want to expose it in such a limiting and ugly way.
 651      */
 652     var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
 653
 654     libvlc_retain(instance);
 655     return mp;
 656 }
 657
 658 /**************************************************************************
 659  * Create a Media Instance object with a media descriptor.
 660  **************************************************************************/
 661 libvlc_media_player_t *
 662 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
 663 {
 664     libvlc_media_player_t * p_mi;
 665
 666     p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
 667     if( !p_mi )
 668         return NULL;
 669
 670     libvlc_media_retain( p_md );
 671     p_mi->p_md = p_md;
 672
 673     return p_mi;
 674 }
 675
 676 /**************************************************************************
 677  * Destroy a Media Instance object (libvlc internal)
 678  *
 679  * Warning: No lock held here, but hey, this is internal. Caller must lock.
 680  **************************************************************************/
 681 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
 682 {
 683     assert( p_mi );
 684
 685     /* Detach Callback from the main libvlc object */
 686     var_DelCallback( p_mi->p_libvlc,
 687                      "snapshot-file", snapshot_was_taken, p_mi );
 688
 689     /* No need for lock_input() because no other threads knows us anymore */
 690     if( p_mi->input.p_thread )
 691         release_input_thread(p_mi, true);
 692     input_resource_Terminate( p_mi->input.p_resource );
 693     input_resource_Release( p_mi->input.p_resource );
 694     vlc_mutex_destroy( &p_mi->input.lock );
 695
 696     libvlc_event_manager_release( p_mi->p_event_manager );
 697     libvlc_media_release( p_mi->p_md );
 698     vlc_mutex_destroy( &p_mi->object_lock );
 699
 700     libvlc_instance_t *instance = p_mi->p_libvlc_instance;
 701     vlc_object_release( p_mi );
 702     libvlc_release(instance);
 703 }
 704
 705 /**************************************************************************
 706  * Release a Media Instance object.
 707  *
 708  * Function does the locking.
 709  **************************************************************************/
 710 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
 711 {
 712     bool destroy;
 713
 714     assert( p_mi );
 715     lock(p_mi);
 716     destroy = !--p_mi->i_refcount;
 717     unlock(p_mi);
 718
 719     if( destroy )
 720         libvlc_media_player_destroy( p_mi );
 721 }
 722
 723 /**************************************************************************
 724  * Retain a Media Instance object.
 725  *
 726  * Caller must hold the lock.
 727  **************************************************************************/
 728 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
 729 {
 730     assert( p_mi );
 731
 732     lock(p_mi);
 733     p_mi->i_refcount++;
 734     unlock(p_mi);
 735 }
 736
 737 /**************************************************************************
 738  * Set the Media descriptor associated with the instance.
 739  *
 740  * Enter without lock -- function will lock the object.
 741  **************************************************************************/
 742 void libvlc_media_player_set_media(
 743                             libvlc_media_player_t *p_mi,
 744                             libvlc_media_t *p_md )
 745 {
 746     lock_input(p_mi);
 747
 748     /* FIXME I am not sure if it is a user request or on die(eof/error)
 749      * request here */
 750     release_input_thread( p_mi,
 751                           p_mi->input.p_thread &&
 752                           !p_mi->input.p_thread->b_eof &&
 753                           !p_mi->input.p_thread->b_error );
 754
 755     lock( p_mi );
 756     set_state( p_mi, libvlc_NothingSpecial, true );
 757     unlock_input( p_mi );
 758
 759     libvlc_media_release( p_mi->p_md );
 760
 761     if( !p_md )
 762     {
 763         p_mi->p_md = NULL;
 764         unlock(p_mi);
 765         return; /* It is ok to pass a NULL md */
 766     }
 767
 768     libvlc_media_retain( p_md );
 769     p_mi->p_md = p_md;
 770
 771     /* The policy here is to ignore that we were created using a different
 772      * libvlc_instance, because we don't really care */
 773     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 774
 775     unlock(p_mi);
 776
 777     /* Send an event for the newly available media */
 778     libvlc_event_t event;
 779     event.type = libvlc_MediaPlayerMediaChanged;
 780     event.u.media_player_media_changed.new_media = p_md;
 781     libvlc_event_send( p_mi->p_event_manager, &event );
 782
 783 }
 784
 785 /**************************************************************************
 786  * Get the Media descriptor associated with the instance.
 787  **************************************************************************/
 788 libvlc_media_t *
 789 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
 790 {
 791     libvlc_media_t *p_m;
 792
 793     lock( p_mi );
 794     p_m = p_mi->p_md;
 795     if( p_m )
 796         libvlc_media_retain( p_m );
 797     unlock( p_mi );
 798
 799     return p_m;
 800 }
 801
 802 /**************************************************************************
 803  * Get the event Manager.
 804  **************************************************************************/
 805 libvlc_event_manager_t *
 806 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
 807 {
 808     return p_mi->p_event_manager;
 809 }
 810
 811 static void add_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi )
 812 {
 813     var_AddListCallback( p_input_thread, "video-es", input_es_changed, p_mi );
 814     var_AddListCallback( p_input_thread, "audio-es", input_es_changed, p_mi );
 815     var_AddListCallback( p_input_thread, "spu-es", input_es_changed, p_mi );
 816     var_AddCallback( p_input_thread, "video-es", input_es_selected, p_mi );
 817     var_AddCallback( p_input_thread, "audio-es", input_es_selected, p_mi );
 818     var_AddCallback( p_input_thread, "spu-es", input_es_selected, p_mi );
 819 }
 820
 821 static void del_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi )
 822 {
 823     var_DelListCallback( p_input_thread, "video-es", input_es_changed, p_mi );
 824     var_DelListCallback( p_input_thread, "audio-es", input_es_changed, p_mi );
 825     var_DelListCallback( p_input_thread, "spu-es", input_es_changed, p_mi );
 826     var_DelCallback( p_input_thread, "video-es", input_es_selected, p_mi );
 827     var_DelCallback( p_input_thread, "audio-es", input_es_selected, p_mi );
 828     var_DelCallback( p_input_thread, "spu-es", input_es_selected, p_mi );
 829 }
 830
 831 /**************************************************************************
 832  * Tell media player to start playing.
 833  **************************************************************************/
 834 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
 835 {
 836     lock_input( p_mi );
 837
 838     input_thread_t *p_input_thread = p_mi->input.p_thread;
 839     if( p_input_thread )
 840     {
 841         /* A thread already exists, send it a play message */
 842         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 843         unlock_input( p_mi );
 844         return 0;
 845     }
 846
 847     /* Ignore previous exception */
 848     lock(p_mi);
 849
 850     if( !p_mi->p_md )
 851     {
 852         unlock(p_mi);
 853         unlock_input( p_mi );
 854         libvlc_printerr( "No associated media descriptor" );
 855         return -1;
 856     }
 857
 858     p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
 859                                    p_mi->input.p_resource );
 860     unlock(p_mi);
 861     if( !p_input_thread )
 862     {
 863         unlock_input(p_mi);
 864         libvlc_printerr( "Not enough memory" );
 865         return -1;
 866     }
 867
 868     var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 869     var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 870     var_AddCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 871     var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 872     add_es_callbacks( p_input_thread, p_mi );
 873
 874     if( input_Start( p_input_thread ) )
 875     {
 876         unlock_input(p_mi);
 877         del_es_callbacks( p_input_thread, p_mi );
 878         var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 879         var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 880         var_DelCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 881         var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 882         vlc_object_release( p_input_thread );
 883         libvlc_printerr( "Input initialization failure" );
 884         return -1;
 885     }
 886     p_mi->input.p_thread = p_input_thread;
 887     unlock_input(p_mi);
 888     return 0;
 889 }
 890
 891 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
 892 {
 893     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
 894     if( !p_input_thread )
 895         return;
 896
 897     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 898     if( state == libvlc_Playing || state == libvlc_Buffering )
 899     {
 900         if( paused )
 901         {
 902             if( libvlc_media_player_can_pause( p_mi ) )
 903                 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 904             else
 905                 input_Stop( p_input_thread, true );
 906         }
 907     }
 908     else
 909     {
 910         if( !paused )
 911             input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 912     }
 913
 914     vlc_object_release( p_input_thread );
 915 }
 916
 917 /**************************************************************************
 918  * Toggle pause.
 919  **************************************************************************/
 920 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
 921 {
 922     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 923     bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
 924
 925     libvlc_media_player_set_pause( p_mi, playing );
 926 }
 927
 928 /**************************************************************************
 929  * Tells whether the media player is currently playing.
 930  *
 931  * Enter with lock held.
 932  **************************************************************************/
 933 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
 934 {
 935     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 936     return (libvlc_Playing == state) || (libvlc_Buffering == state);
 937 }
 938
 939 /**************************************************************************
 940  * Stop playing.
 941  **************************************************************************/
 942 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
 943 {
 944     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 945
 946     lock_input(p_mi);
 947     release_input_thread( p_mi, true ); /* This will stop the input thread */
 948
 949     /* Force to go to stopped state, in case we were in Ended, or Error
 950      * state. */
 951     if( state != libvlc_Stopped )
 952     {
 953         set_state( p_mi, libvlc_Stopped, false );
 954
 955         /* Construct and send the event */
 956         libvlc_event_t event;
 957         event.type = libvlc_MediaPlayerStopped;
 958         libvlc_event_send( p_mi->p_event_manager, &event );
 959     }
 960
 961     input_resource_Terminate( p_mi->input.p_resource );
 962     unlock_input(p_mi);
 963 }
 964
 965
 966 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
 967     void *(*lock_cb) (void *, void **),
 968     void (*unlock_cb) (void *, void *, void *const *),
 969     void (*display_cb) (void *, void *),
 970     void *opaque )
 971 {
 972     var_SetAddress( mp, "vmem-lock", lock_cb );
 973     var_SetAddress( mp, "vmem-unlock", unlock_cb );
 974     var_SetAddress( mp, "vmem-display", display_cb );
 975     var_SetAddress( mp, "vmem-data", opaque );
 976     var_SetString( mp, "vout", "vmem" );
 977     var_SetString( mp, "avcodec-hw", "none" );
 978 }
 979
 980 void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
 981                                         libvlc_video_format_cb setup,
 982                                         libvlc_video_cleanup_cb cleanup )
 983 {
 984     var_SetAddress( mp, "vmem-setup", setup );
 985     var_SetAddress( mp, "vmem-cleanup", cleanup );
 986 }
 987
 988 void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
 989                               unsigned width, unsigned height, unsigned pitch )
 990 {
 991     var_SetString( mp, "vmem-chroma", chroma );
 992     var_SetInteger( mp, "vmem-width", width );
 993     var_SetInteger( mp, "vmem-height", height );
 994     var_SetInteger( mp, "vmem-pitch", pitch );
 995 }
 996
 997 /**************************************************************************
 998  * set_nsobject
 999  **************************************************************************/
1000 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
1001                                         void * drawable )
1002 {
1003     assert (p_mi != NULL);
1004 #ifdef __APPLE__
1005     var_SetAddress (p_mi, "drawable-nsobject", drawable);
1006 #else
1007     (void) p_mi; (void)drawable;
1008 #endif
1009 }
1010
1011 /**************************************************************************
1012  * get_nsobject
1013  **************************************************************************/
1014 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
1015 {
1016     assert (p_mi != NULL);
1017 #ifdef __APPLE__
1018     return var_GetAddress (p_mi, "drawable-nsobject");
1019 #else
1020     return NULL;
1021 #endif
1022 }
1023
1024 /**************************************************************************
1025  * set_agl
1026  **************************************************************************/
1027 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
1028                                   uint32_t drawable )
1029 {
1030 #ifdef __APPLE__
1031     var_SetInteger (p_mi, "drawable-agl", drawable);
1032 #else
1033     (void) p_mi; (void)drawable;
1034 #endif
1035 }
1036
1037 /**************************************************************************
1038  * get_agl
1039  **************************************************************************/
1040 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
1041 {
1042     assert (p_mi != NULL);
1043 #ifdef __APPLE__
1044     return var_GetInteger (p_mi, "drawable-agl");
1045 #else
1046     return 0;
1047 #endif
1048 }
1049
1050 /**************************************************************************
1051  * set_xwindow
1052  **************************************************************************/
1053 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
1054                                       uint32_t drawable )
1055 {
1056     assert (p_mi != NULL);
1057
1058     var_SetString (p_mi, "avcodec-hw", "");
1059     var_SetString (p_mi, "vout", drawable ? "xid" : "any");
1060     var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
1061     var_SetInteger (p_mi, "drawable-xid", drawable);
1062 }
1063
1064 /**************************************************************************
1065  * get_xwindow
1066  **************************************************************************/
1067 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
1068 {
1069     return var_GetInteger (p_mi, "drawable-xid");
1070 }
1071
1072 /**************************************************************************
1073  * set_hwnd
1074  **************************************************************************/
1075 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
1076                                    void *drawable )
1077 {
1078     assert (p_mi != NULL);
1079 #if defined (_WIN32) || defined (__OS2__)
1080     var_SetString (p_mi, "window",
1081                    (drawable != NULL) ? "embed-hwnd,any" : "");
1082     var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
1083 #else
1084     (void) p_mi; (void) drawable;
1085 #endif
1086 }
1087
1088 /**************************************************************************
1089  * get_hwnd
1090  **************************************************************************/
1091 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
1092 {
1093     assert (p_mi != NULL);
1094 #if defined (_WIN32) || defined (__OS2__)
1095     return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
1096 #else
1097     return NULL;
1098 #endif
1099 }
1100
1101 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
1102                                  libvlc_audio_play_cb play_cb,
1103                                  libvlc_audio_pause_cb pause_cb,
1104                                  libvlc_audio_resume_cb resume_cb,
1105                                  libvlc_audio_flush_cb flush_cb,
1106                                  libvlc_audio_drain_cb drain_cb,
1107                                  void *opaque )
1108 {
1109     var_SetAddress( mp, "amem-play", play_cb );
1110     var_SetAddress( mp, "amem-pause", pause_cb );
1111     var_SetAddress( mp, "amem-resume", resume_cb );
1112     var_SetAddress( mp, "amem-flush", flush_cb );
1113     var_SetAddress( mp, "amem-drain", drain_cb );
1114     var_SetAddress( mp, "amem-data", opaque );
1115     var_SetString( mp, "aout", "amem,none" );
1116
1117     input_resource_ResetAout(mp->input.p_resource);
1118 }
1119
1120 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
1121                                        libvlc_audio_set_volume_cb cb )
1122 {
1123     var_SetAddress( mp, "amem-set-volume", cb );
1124
1125     input_resource_ResetAout(mp->input.p_resource);
1126 }
1127
1128 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
1129                                         libvlc_audio_setup_cb setup,
1130                                         libvlc_audio_cleanup_cb cleanup )
1131 {
1132     var_SetAddress( mp, "amem-setup", setup );
1133     var_SetAddress( mp, "amem-cleanup", cleanup );
1134
1135     input_resource_ResetAout(mp->input.p_resource);
1136 }
1137
1138 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
1139                               unsigned rate, unsigned channels )
1140 {
1141     var_SetString( mp, "amem-format", format );
1142     var_SetInteger( mp, "amem-rate", rate );
1143     var_SetInteger( mp, "amem-channels", channels );
1144
1145     input_resource_ResetAout(mp->input.p_resource);
1146 }
1147
1148
1149 /**************************************************************************
1150  * Getters for stream information
1151  **************************************************************************/
1152 libvlc_time_t libvlc_media_player_get_length(
1153                              libvlc_media_player_t *p_mi )
1154 {
1155     input_thread_t *p_input_thread;
1156     libvlc_time_t i_time;
1157
1158     p_input_thread = libvlc_get_input_thread ( p_mi );
1159     if( !p_input_thread )
1160         return -1;
1161
1162     i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1163     vlc_object_release( p_input_thread );
1164
1165     return i_time;
1166 }
1167
1168 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1169 {
1170     input_thread_t *p_input_thread;
1171     libvlc_time_t i_time;
1172
1173     p_input_thread = libvlc_get_input_thread ( p_mi );
1174     if( !p_input_thread )
1175         return -1;
1176
1177     i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1178     vlc_object_release( p_input_thread );
1179     return i_time;
1180 }
1181
1182 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1183                                    libvlc_time_t i_time )
1184 {
1185     input_thread_t *p_input_thread;
1186
1187     p_input_thread = libvlc_get_input_thread ( p_mi );
1188     if( !p_input_thread )
1189         return;
1190
1191     var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1192     vlc_object_release( p_input_thread );
1193 }
1194
1195 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1196                                        float position )
1197 {
1198     input_thread_t *p_input_thread;
1199
1200     p_input_thread = libvlc_get_input_thread ( p_mi );
1201     if( !p_input_thread )
1202         return;
1203
1204     var_SetFloat( p_input_thread, "position", position );
1205     vlc_object_release( p_input_thread );
1206 }
1207
1208 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1209 {
1210     input_thread_t *p_input_thread;
1211     float f_position;
1212
1213     p_input_thread = libvlc_get_input_thread ( p_mi );
1214     if( !p_input_thread )
1215         return -1.0;
1216
1217     f_position = var_GetFloat( p_input_thread, "position" );
1218     vlc_object_release( p_input_thread );
1219
1220     return f_position;
1221 }
1222
1223 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1224                                       int chapter )
1225 {
1226     input_thread_t *p_input_thread;
1227
1228     p_input_thread = libvlc_get_input_thread ( p_mi );
1229     if( !p_input_thread )
1230         return;
1231
1232     var_SetInteger( p_input_thread, "chapter", chapter );
1233     vlc_object_release( p_input_thread );
1234 }
1235
1236 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1237 {
1238     input_thread_t *p_input_thread;
1239     int i_chapter;
1240
1241     p_input_thread = libvlc_get_input_thread ( p_mi );
1242     if( !p_input_thread )
1243         return -1;
1244
1245     i_chapter = var_GetInteger( p_input_thread, "chapter" );
1246     vlc_object_release( p_input_thread );
1247
1248     return i_chapter;
1249 }
1250
1251 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1252 {
1253     input_thread_t *p_input_thread;
1254     vlc_value_t val;
1255
1256     p_input_thread = libvlc_get_input_thread ( p_mi );
1257     if( !p_input_thread )
1258         return -1;
1259
1260     int i_ret = var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1261     vlc_object_release( p_input_thread );
1262
1263     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1264 }
1265
1266 int libvlc_media_player_get_chapter_count_for_title(
1267                                  libvlc_media_player_t *p_mi,
1268                                  int i_title )
1269 {
1270     input_thread_t *p_input_thread;
1271     vlc_value_t val;
1272
1273     p_input_thread = libvlc_get_input_thread ( p_mi );
1274     if( !p_input_thread )
1275         return -1;
1276
1277     char *psz_name;
1278     if( asprintf( &psz_name,  "title %2i", i_title ) == -1 )
1279     {
1280         vlc_object_release( p_input_thread );
1281         return -1;
1282     }
1283     int i_ret = var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1284     vlc_object_release( p_input_thread );
1285     free( psz_name );
1286
1287     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1288 }
1289
1290 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1291                                     int i_title )
1292 {
1293     input_thread_t *p_input_thread;
1294
1295     p_input_thread = libvlc_get_input_thread ( p_mi );
1296     if( !p_input_thread )
1297         return;
1298
1299     var_SetInteger( p_input_thread, "title", i_title );
1300     vlc_object_release( p_input_thread );
1301
1302     //send event
1303     libvlc_event_t event;
1304     event.type = libvlc_MediaPlayerTitleChanged;
1305     event.u.media_player_title_changed.new_title = i_title;
1306     libvlc_event_send( p_mi->p_event_manager, &event );
1307 }
1308
1309 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1310 {
1311     input_thread_t *p_input_thread;
1312     int i_title;
1313
1314     p_input_thread = libvlc_get_input_thread ( p_mi );
1315     if( !p_input_thread )
1316         return -1;
1317
1318     i_title = var_GetInteger( p_input_thread, "title" );
1319     vlc_object_release( p_input_thread );
1320
1321     return i_title;
1322 }
1323
1324 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1325 {
1326     input_thread_t *p_input_thread;
1327     vlc_value_t val;
1328
1329     p_input_thread = libvlc_get_input_thread ( p_mi );
1330     if( !p_input_thread )
1331         return -1;
1332
1333     int i_ret = var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1334     vlc_object_release( p_input_thread );
1335
1336     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1337 }
1338
1339 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1340 {
1341     input_thread_t *p_input_thread;
1342
1343     p_input_thread = libvlc_get_input_thread ( p_mi );
1344     if( !p_input_thread )
1345         return;
1346
1347     int i_type = var_Type( p_input_thread, "next-chapter" );
1348     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1349                             "next-chapter":"next-title" );
1350
1351     vlc_object_release( p_input_thread );
1352 }
1353
1354 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1355 {
1356     input_thread_t *p_input_thread;
1357
1358     p_input_thread = libvlc_get_input_thread ( p_mi );
1359     if( !p_input_thread )
1360         return;
1361
1362     int i_type = var_Type( p_input_thread, "next-chapter" );
1363     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1364                             "prev-chapter":"prev-title" );
1365
1366     vlc_object_release( p_input_thread );
1367 }
1368
1369 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1370 {
1371     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1372     double f_fps = 0.0;
1373
1374     if( p_input_thread )
1375     {
1376         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1377             f_fps = 0.0;
1378         vlc_object_release( p_input_thread );
1379     }
1380     return f_fps;
1381 }
1382
1383 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1384 {
1385     bool b_will_play;
1386     input_thread_t *p_input_thread =
1387                             libvlc_get_input_thread ( p_mi );
1388     if ( !p_input_thread )
1389         return false;
1390
1391     b_will_play = !p_input_thread->b_dead;
1392     vlc_object_release( p_input_thread );
1393
1394     return b_will_play;
1395 }
1396
1397 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1398 {
1399     var_SetFloat (p_mi, "rate", rate);
1400
1401     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1402     if( !p_input_thread )
1403         return 0;
1404     var_SetFloat( p_input_thread, "rate", rate );
1405     vlc_object_release( p_input_thread );
1406     return 0;
1407 }
1408
1409 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1410 {
1411     return var_GetFloat (p_mi, "rate");
1412 }
1413
1414 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1415 {
1416     lock(p_mi);
1417     libvlc_state_t state = p_mi->state;
1418     unlock(p_mi);
1419     return state;
1420 }
1421
1422 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1423 {
1424     input_thread_t *p_input_thread;
1425     bool b_seekable;
1426
1427     p_input_thread = libvlc_get_input_thread ( p_mi );
1428     if ( !p_input_thread )
1429         return false;
1430     b_seekable = var_GetBool( p_input_thread, "can-seek" );
1431     vlc_object_release( p_input_thread );
1432
1433     return b_seekable;
1434 }
1435
1436 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1437                                    unsigned navigate )
1438 {
1439     static const vlc_action_t map[] =
1440     {
1441         INPUT_NAV_ACTIVATE, INPUT_NAV_UP, INPUT_NAV_DOWN,
1442         INPUT_NAV_LEFT, INPUT_NAV_RIGHT,
1443     };
1444
1445     if( navigate >= sizeof(map) / sizeof(map[0]) )
1446       return;
1447
1448     input_thread_t *p_input = libvlc_get_input_thread ( p_mi );
1449     if ( p_input == NULL )
1450       return;
1451
1452     input_Control( p_input, map[navigate], NULL );
1453     vlc_object_release( p_input );
1454 }
1455
1456 /* internal function, used by audio, video */
1457 libvlc_track_description_t *
1458         libvlc_get_track_description( libvlc_media_player_t *p_mi,
1459                                       const char *psz_variable )
1460 {
1461     input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1462     libvlc_track_description_t *p_track_description = NULL,
1463                                *p_actual, *p_previous;
1464
1465     if( !p_input )
1466         return NULL;
1467
1468     vlc_value_t val_list, text_list;
1469     int i_ret = var_Change( p_input, psz_variable, VLC_VAR_GETCHOICES, &val_list, &text_list );
1470     if( i_ret != VLC_SUCCESS )
1471         return NULL;
1472
1473     /* no tracks */
1474     if( val_list.p_list->i_count <= 0 )
1475         goto end;
1476
1477     p_track_description = ( libvlc_track_description_t * )
1478         malloc( sizeof( libvlc_track_description_t ) );
1479     if ( !p_track_description )
1480     {
1481         libvlc_printerr( "Not enough memory" );
1482         goto end;
1483     }
1484     p_actual = p_track_description;
1485     p_previous = NULL;
1486     for( int i = 0; i < val_list.p_list->i_count; i++ )
1487     {
1488         if( !p_actual )
1489         {
1490             p_actual = ( libvlc_track_description_t * )
1491                 malloc( sizeof( libvlc_track_description_t ) );
1492             if ( !p_actual )
1493             {
1494                 libvlc_track_description_list_release( p_track_description );
1495                 libvlc_printerr( "Not enough memory" );
1496                 goto end;
1497             }
1498         }
1499         p_actual->i_id = val_list.p_list->p_values[i].i_int;
1500         p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1501         p_actual->p_next = NULL;
1502         if( p_previous )
1503             p_previous->p_next = p_actual;
1504         p_previous = p_actual;
1505         p_actual =  NULL;
1506     }
1507
1508 end:
1509     var_FreeList( &val_list, &text_list );
1510     vlc_object_release( p_input );
1511
1512     return p_track_description;
1513 }
1514
1515 // Deprecated alias for libvlc_track_description_list_release
1516 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1517 {
1518     libvlc_track_description_list_release( p_td );
1519 }
1520
1521 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1522 {
1523     libvlc_track_description_t *p_actual, *p_before;
1524     p_actual = p_td;
1525
1526     while ( p_actual )
1527     {
1528         free( p_actual->psz_name );
1529         p_before = p_actual;
1530         p_actual = p_before->p_next;
1531         free( p_before );
1532     }
1533 }
1534
1535 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1536 {
1537     input_thread_t *p_input_thread;
1538     bool b_can_pause;
1539
1540     p_input_thread = libvlc_get_input_thread ( p_mi );
1541     if ( !p_input_thread )
1542         return false;
1543     b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1544     vlc_object_release( p_input_thread );
1545
1546     return b_can_pause;
1547 }
1548
1549 int libvlc_media_player_program_scrambled( libvlc_media_player_t *p_mi )
1550 {
1551     input_thread_t *p_input_thread;
1552     bool b_program_scrambled;
1553
1554     p_input_thread = libvlc_get_input_thread ( p_mi );
1555     if ( !p_input_thread )
1556         return false;
1557     b_program_scrambled = var_GetBool( p_input_thread, "program-scrambled" );
1558     vlc_object_release( p_input_thread );
1559
1560     return b_program_scrambled;
1561 }
1562
1563 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1564 {
1565     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1566     if( p_input_thread != NULL )
1567     {
1568         var_TriggerCallback( p_input_thread, "frame-next" );
1569         vlc_object_release( p_input_thread );
1570     }
1571 }
1572
1573 /**
1574  * Private lookup table to get subpicture alignment flag values corresponding
1575  * to a libvlc_position_t enumerated value.
1576  */
1577 static const unsigned char position_subpicture_alignment[] = {
1578     [libvlc_position_center]       = 0,
1579     [libvlc_position_left]         = SUBPICTURE_ALIGN_LEFT,
1580     [libvlc_position_right]        = SUBPICTURE_ALIGN_RIGHT,
1581     [libvlc_position_top]          = SUBPICTURE_ALIGN_TOP,
1582     [libvlc_position_top_left]     = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT,
1583     [libvlc_position_top_right]    = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT,
1584     [libvlc_position_bottom]       = SUBPICTURE_ALIGN_BOTTOM,
1585     [libvlc_position_bottom_left]  = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT,
1586     [libvlc_position_bottom_right] = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT
1587 };
1588
1589 void libvlc_media_player_set_video_title_display( libvlc_media_player_t *p_mi, libvlc_position_t position, unsigned timeout )
1590 {
1591     assert( position >= libvlc_position_disable && position <= libvlc_position_bottom_right );
1592
1593     if ( position != libvlc_position_disable )
1594     {
1595         var_SetBool( p_mi, "video-title-show", true );
1596         var_SetInteger( p_mi, "video-title-position", position_subpicture_alignment[position] );
1597         var_SetInteger( p_mi, "video-title-timeout", timeout );
1598     }
1599     else
1600     {
1601         var_SetBool( p_mi, "video-title-show", false );
1602     }
1603 }
1604
1605 /**
1606  * Maximum size of a formatted equalizer amplification band frequency value.
1607  *
1608  * The allowed value range is supposed to be constrained from -20.0 to 20.0.
1609  *
1610  * The format string " %.07f" with a minimum value of "-20" gives a maximum
1611  * string length of e.g. " -19.1234567", i.e. 12 bytes (not including the null
1612  * terminator).
1613  */
1614 #define EQZ_BAND_VALUE_SIZE 12
1615
1616 int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
1617 {
1618     char bands[EQZ_BANDS_MAX * EQZ_BAND_VALUE_SIZE + 1];
1619
1620     if( p_equalizer != NULL )
1621     {
1622         for( unsigned i = 0, c = 0; i < EQZ_BANDS_MAX; i++ )
1623         {
1624             c += snprintf( bands + c, sizeof(bands) - c, " %.07f",
1625                           p_equalizer->f_amp[i] );
1626             if( unlikely(c >= sizeof(bands)) )
1627                 return -1;
1628         }
1629
1630         var_SetFloat( p_mi, "equalizer-preamp", p_equalizer->f_preamp );
1631         var_SetString( p_mi, "equalizer-bands", bands );
1632     }
1633     var_SetString( p_mi, "audio-filter", p_equalizer ? "equalizer" : "" );
1634
1635     audio_output_t *p_aout = input_resource_HoldAout( p_mi->input.p_resource );
1636     if( p_aout != NULL )
1637     {
1638         if( p_equalizer != NULL )
1639         {
1640             var_SetFloat( p_aout, "equalizer-preamp", p_equalizer->f_preamp );
1641             var_SetString( p_aout, "equalizer-bands", bands );
1642         }
1643
1644         var_SetString( p_aout, "audio-filter", p_equalizer ? "equalizer" : "" );
1645         vlc_object_release( p_aout );
1646     }
1647
1648     return 0;
1649 }