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, "drawable-xid", VLC_VAR_INTEGER);
 514 #if defined (_WIN32) || defined (__OS2__)
 515     var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
 516 #endif
 517 #ifdef __APPLE__
 518     var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
 519     var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
 520 #endif
 521
 522     var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
 523     var_SetBool (mp, "keyboard-events", true);
 524     var_Create (mp, "mouse-events", VLC_VAR_BOOL);
 525     var_SetBool (mp, "mouse-events", true);
 526
 527     var_Create (mp, "fullscreen", VLC_VAR_BOOL);
 528     var_Create (mp, "autoscale", VLC_VAR_BOOL);
 529     var_SetBool (mp, "autoscale", true);
 530     var_Create (mp, "scale", VLC_VAR_FLOAT);
 531     var_SetFloat (mp, "scale", 1.);
 532     var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
 533     var_Create (mp, "crop", VLC_VAR_STRING);
 534     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
 535     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 536
 537     var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
 538
 539     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
 540     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 541     var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 542     var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 543     var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 544     var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 545     var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 546     var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 547     var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 548
 549     var_Create (mp, "logo-file", VLC_VAR_STRING);
 550     var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 551     var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 552     var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 553     var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 554     var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 555     var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 556
 557     var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 558     var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 559     var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 560     var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 561     var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
 562
 563      /* Audio */
 564     var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 565     var_Create (mp, "mute", VLC_VAR_BOOL);
 566     var_Create (mp, "volume", VLC_VAR_FLOAT);
 567     var_Create (mp, "corks", VLC_VAR_INTEGER);
 568     var_Create (mp, "audio-filter", VLC_VAR_STRING);
 569     var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
 570     var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
 571     var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
 572     var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
 573     var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
 574     var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
 575     var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
 576     var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
 577     var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
 578     var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
 579     var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 580     var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
 581
 582     /* Video Title */
 583     var_Create (mp, "video-title-show", VLC_VAR_BOOL);
 584     var_Create (mp, "video-title-position", VLC_VAR_INTEGER);
 585     var_Create (mp, "video-title-timeout", VLC_VAR_INTEGER);
 586
 587     /* Equalizer */
 588     var_Create (mp, "equalizer-preamp", VLC_VAR_FLOAT);
 589     var_Create (mp, "equalizer-vlcfreqs", VLC_VAR_BOOL);
 590     var_Create (mp, "equalizer-bands", VLC_VAR_STRING);
 591
 592     mp->p_md = NULL;
 593     mp->state = libvlc_NothingSpecial;
 594     mp->p_libvlc_instance = instance;
 595     mp->input.p_thread = NULL;
 596     mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
 597     if (unlikely(mp->input.p_resource == NULL))
 598     {
 599         vlc_object_release(mp);
 600         return NULL;
 601     }
 602     audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
 603     if( aout != NULL )
 604         input_resource_PutAout(mp->input.p_resource, aout);
 605
 606     vlc_mutex_init (&mp->input.lock);
 607     mp->i_refcount = 1;
 608     mp->p_event_manager = libvlc_event_manager_new(mp, instance);
 609     if (unlikely(mp->p_event_manager == NULL))
 610     {
 611         input_resource_Release(mp->input.p_resource);
 612         vlc_object_release(mp);
 613         return NULL;
 614     }
 615     vlc_mutex_init(&mp->object_lock);
 616
 617     register_event(mp, NothingSpecial);
 618     register_event(mp, Opening);
 619     register_event(mp, Buffering);
 620     register_event(mp, Playing);
 621     register_event(mp, Paused);
 622     register_event(mp, Stopped);
 623     register_event(mp, Forward);
 624     register_event(mp, Backward);
 625     register_event(mp, EndReached);
 626     register_event(mp, EncounteredError);
 627     register_event(mp, SeekableChanged);
 628
 629     register_event(mp, PositionChanged);
 630     register_event(mp, TimeChanged);
 631     register_event(mp, LengthChanged);
 632     register_event(mp, TitleChanged);
 633     register_event(mp, PausableChanged);
 634
 635     register_event(mp, Vout);
 636     register_event(mp, ScrambledChanged);
 637     register_event(mp, ESAdded);
 638     register_event(mp, ESDeleted);
 639     register_event(mp, ESSelected);
 640
 641     /* Snapshot initialization */
 642     register_event(mp, SnapshotTaken);
 643
 644     register_event(mp, MediaChanged);
 645
 646     /* Attach a var callback to the global object to provide the glue between
 647      * vout_thread that generates the event and media_player that re-emits it
 648      * with its own event manager
 649      *
 650      * FIXME: It's unclear why we want to put this in public API, and why we
 651      * want to expose it in such a limiting and ugly way.
 652      */
 653     var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
 654
 655     libvlc_retain(instance);
 656     return mp;
 657 }
 658
 659 /**************************************************************************
 660  * Create a Media Instance object with a media descriptor.
 661  **************************************************************************/
 662 libvlc_media_player_t *
 663 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
 664 {
 665     libvlc_media_player_t * p_mi;
 666
 667     p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
 668     if( !p_mi )
 669         return NULL;
 670
 671     libvlc_media_retain( p_md );
 672     p_mi->p_md = p_md;
 673
 674     return p_mi;
 675 }
 676
 677 /**************************************************************************
 678  * Destroy a Media Instance object (libvlc internal)
 679  *
 680  * Warning: No lock held here, but hey, this is internal. Caller must lock.
 681  **************************************************************************/
 682 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
 683 {
 684     assert( p_mi );
 685
 686     /* Detach Callback from the main libvlc object */
 687     var_DelCallback( p_mi->p_libvlc,
 688                      "snapshot-file", snapshot_was_taken, p_mi );
 689
 690     /* No need for lock_input() because no other threads knows us anymore */
 691     if( p_mi->input.p_thread )
 692         release_input_thread(p_mi, true);
 693     input_resource_Terminate( p_mi->input.p_resource );
 694     input_resource_Release( p_mi->input.p_resource );
 695     vlc_mutex_destroy( &p_mi->input.lock );
 696
 697     libvlc_event_manager_release( p_mi->p_event_manager );
 698     libvlc_media_release( p_mi->p_md );
 699     vlc_mutex_destroy( &p_mi->object_lock );
 700
 701     libvlc_instance_t *instance = p_mi->p_libvlc_instance;
 702     vlc_object_release( p_mi );
 703     libvlc_release(instance);
 704 }
 705
 706 /**************************************************************************
 707  * Release a Media Instance object.
 708  *
 709  * Function does the locking.
 710  **************************************************************************/
 711 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
 712 {
 713     bool destroy;
 714
 715     assert( p_mi );
 716     lock(p_mi);
 717     destroy = !--p_mi->i_refcount;
 718     unlock(p_mi);
 719
 720     if( destroy )
 721         libvlc_media_player_destroy( p_mi );
 722 }
 723
 724 /**************************************************************************
 725  * Retain a Media Instance object.
 726  *
 727  * Caller must hold the lock.
 728  **************************************************************************/
 729 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
 730 {
 731     assert( p_mi );
 732
 733     lock(p_mi);
 734     p_mi->i_refcount++;
 735     unlock(p_mi);
 736 }
 737
 738 /**************************************************************************
 739  * Set the Media descriptor associated with the instance.
 740  *
 741  * Enter without lock -- function will lock the object.
 742  **************************************************************************/
 743 void libvlc_media_player_set_media(
 744                             libvlc_media_player_t *p_mi,
 745                             libvlc_media_t *p_md )
 746 {
 747     lock_input(p_mi);
 748
 749     /* FIXME I am not sure if it is a user request or on die(eof/error)
 750      * request here */
 751     release_input_thread( p_mi,
 752                           p_mi->input.p_thread &&
 753                           !p_mi->input.p_thread->b_eof &&
 754                           !p_mi->input.p_thread->b_error );
 755
 756     lock( p_mi );
 757     set_state( p_mi, libvlc_NothingSpecial, true );
 758     unlock_input( p_mi );
 759
 760     libvlc_media_release( p_mi->p_md );
 761
 762     if( !p_md )
 763     {
 764         p_mi->p_md = NULL;
 765         unlock(p_mi);
 766         return; /* It is ok to pass a NULL md */
 767     }
 768
 769     libvlc_media_retain( p_md );
 770     p_mi->p_md = p_md;
 771
 772     /* The policy here is to ignore that we were created using a different
 773      * libvlc_instance, because we don't really care */
 774     p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
 775
 776     unlock(p_mi);
 777
 778     /* Send an event for the newly available media */
 779     libvlc_event_t event;
 780     event.type = libvlc_MediaPlayerMediaChanged;
 781     event.u.media_player_media_changed.new_media = p_md;
 782     libvlc_event_send( p_mi->p_event_manager, &event );
 783
 784 }
 785
 786 /**************************************************************************
 787  * Get the Media descriptor associated with the instance.
 788  **************************************************************************/
 789 libvlc_media_t *
 790 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
 791 {
 792     libvlc_media_t *p_m;
 793
 794     lock( p_mi );
 795     p_m = p_mi->p_md;
 796     if( p_m )
 797         libvlc_media_retain( p_m );
 798     unlock( p_mi );
 799
 800     return p_m;
 801 }
 802
 803 /**************************************************************************
 804  * Get the event Manager.
 805  **************************************************************************/
 806 libvlc_event_manager_t *
 807 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
 808 {
 809     return p_mi->p_event_manager;
 810 }
 811
 812 static void add_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi )
 813 {
 814     var_AddListCallback( p_input_thread, "video-es", input_es_changed, p_mi );
 815     var_AddListCallback( p_input_thread, "audio-es", input_es_changed, p_mi );
 816     var_AddListCallback( p_input_thread, "spu-es", input_es_changed, p_mi );
 817     var_AddCallback( p_input_thread, "video-es", input_es_selected, p_mi );
 818     var_AddCallback( p_input_thread, "audio-es", input_es_selected, p_mi );
 819     var_AddCallback( p_input_thread, "spu-es", input_es_selected, p_mi );
 820 }
 821
 822 static void del_es_callbacks( input_thread_t *p_input_thread, libvlc_media_player_t *p_mi )
 823 {
 824     var_DelListCallback( p_input_thread, "video-es", input_es_changed, p_mi );
 825     var_DelListCallback( p_input_thread, "audio-es", input_es_changed, p_mi );
 826     var_DelListCallback( p_input_thread, "spu-es", input_es_changed, p_mi );
 827     var_DelCallback( p_input_thread, "video-es", input_es_selected, p_mi );
 828     var_DelCallback( p_input_thread, "audio-es", input_es_selected, p_mi );
 829     var_DelCallback( p_input_thread, "spu-es", input_es_selected, p_mi );
 830 }
 831
 832 /**************************************************************************
 833  * Tell media player to start playing.
 834  **************************************************************************/
 835 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
 836 {
 837     lock_input( p_mi );
 838
 839     input_thread_t *p_input_thread = p_mi->input.p_thread;
 840     if( p_input_thread )
 841     {
 842         /* A thread already exists, send it a play message */
 843         input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 844         unlock_input( p_mi );
 845         return 0;
 846     }
 847
 848     /* Ignore previous exception */
 849     lock(p_mi);
 850
 851     if( !p_mi->p_md )
 852     {
 853         unlock(p_mi);
 854         unlock_input( p_mi );
 855         libvlc_printerr( "No associated media descriptor" );
 856         return -1;
 857     }
 858
 859     p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
 860                                    p_mi->input.p_resource );
 861     unlock(p_mi);
 862     if( !p_input_thread )
 863     {
 864         unlock_input(p_mi);
 865         libvlc_printerr( "Not enough memory" );
 866         return -1;
 867     }
 868
 869     var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 870     var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 871     var_AddCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 872     var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 873     add_es_callbacks( p_input_thread, p_mi );
 874
 875     if( input_Start( p_input_thread ) )
 876     {
 877         unlock_input(p_mi);
 878         del_es_callbacks( p_input_thread, p_mi );
 879         var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
 880         var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
 881         var_DelCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
 882         var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
 883         vlc_object_release( p_input_thread );
 884         libvlc_printerr( "Input initialization failure" );
 885         return -1;
 886     }
 887     p_mi->input.p_thread = p_input_thread;
 888     unlock_input(p_mi);
 889     return 0;
 890 }
 891
 892 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
 893 {
 894     input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
 895     if( !p_input_thread )
 896         return;
 897
 898     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 899     if( state == libvlc_Playing || state == libvlc_Buffering )
 900     {
 901         if( paused )
 902         {
 903             if( libvlc_media_player_can_pause( p_mi ) )
 904                 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
 905             else
 906                 libvlc_media_player_stop( p_mi );
 907         }
 908     }
 909     else
 910     {
 911         if( !paused )
 912             input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
 913     }
 914
 915     vlc_object_release( p_input_thread );
 916 }
 917
 918 /**************************************************************************
 919  * Toggle pause.
 920  **************************************************************************/
 921 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
 922 {
 923     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 924     bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
 925
 926     libvlc_media_player_set_pause( p_mi, playing );
 927 }
 928
 929 /**************************************************************************
 930  * Tells whether the media player is currently playing.
 931  *
 932  * Enter with lock held.
 933  **************************************************************************/
 934 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
 935 {
 936     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 937     return (libvlc_Playing == state) || (libvlc_Buffering == state);
 938 }
 939
 940 /**************************************************************************
 941  * Stop playing.
 942  **************************************************************************/
 943 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
 944 {
 945     libvlc_state_t state = libvlc_media_player_get_state( p_mi );
 946
 947     lock_input(p_mi);
 948     release_input_thread( p_mi, true ); /* This will stop the input thread */
 949
 950     /* Force to go to stopped state, in case we were in Ended, or Error
 951      * state. */
 952     if( state != libvlc_Stopped )
 953     {
 954         set_state( p_mi, libvlc_Stopped, false );
 955
 956         /* Construct and send the event */
 957         libvlc_event_t event;
 958         event.type = libvlc_MediaPlayerStopped;
 959         libvlc_event_send( p_mi->p_event_manager, &event );
 960     }
 961
 962     input_resource_Terminate( p_mi->input.p_resource );
 963     unlock_input(p_mi);
 964 }
 965
 966
 967 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
 968     void *(*lock_cb) (void *, void **),
 969     void (*unlock_cb) (void *, void *, void *const *),
 970     void (*display_cb) (void *, void *),
 971     void *opaque )
 972 {
 973     var_SetAddress( mp, "vmem-lock", lock_cb );
 974     var_SetAddress( mp, "vmem-unlock", unlock_cb );
 975     var_SetAddress( mp, "vmem-display", display_cb );
 976     var_SetAddress( mp, "vmem-data", opaque );
 977     var_SetString( mp, "vout", "vmem" );
 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, "vout", drawable ? "xid" : "any");
1059     var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
1060     var_SetInteger (p_mi, "drawable-xid", drawable);
1061 }
1062
1063 /**************************************************************************
1064  * get_xwindow
1065  **************************************************************************/
1066 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
1067 {
1068     return var_GetInteger (p_mi, "drawable-xid");
1069 }
1070
1071 /**************************************************************************
1072  * set_hwnd
1073  **************************************************************************/
1074 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
1075                                    void *drawable )
1076 {
1077     assert (p_mi != NULL);
1078 #if defined (_WIN32) || defined (__OS2__)
1079     var_SetString (p_mi, "window",
1080                    (drawable != NULL) ? "embed-hwnd,any" : "");
1081     var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
1082 #else
1083     (void) p_mi; (void) drawable;
1084 #endif
1085 }
1086
1087 /**************************************************************************
1088  * get_hwnd
1089  **************************************************************************/
1090 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
1091 {
1092     assert (p_mi != NULL);
1093 #if defined (_WIN32) || defined (__OS2__)
1094     return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
1095 #else
1096     return NULL;
1097 #endif
1098 }
1099
1100 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
1101                                  libvlc_audio_play_cb play_cb,
1102                                  libvlc_audio_pause_cb pause_cb,
1103                                  libvlc_audio_resume_cb resume_cb,
1104                                  libvlc_audio_flush_cb flush_cb,
1105                                  libvlc_audio_drain_cb drain_cb,
1106                                  void *opaque )
1107 {
1108     var_SetAddress( mp, "amem-play", play_cb );
1109     var_SetAddress( mp, "amem-pause", pause_cb );
1110     var_SetAddress( mp, "amem-resume", resume_cb );
1111     var_SetAddress( mp, "amem-flush", flush_cb );
1112     var_SetAddress( mp, "amem-drain", drain_cb );
1113     var_SetAddress( mp, "amem-data", opaque );
1114     var_SetString( mp, "aout", "amem,none" );
1115
1116     input_resource_ResetAout(mp->input.p_resource);
1117 }
1118
1119 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
1120                                        libvlc_audio_set_volume_cb cb )
1121 {
1122     var_SetAddress( mp, "amem-set-volume", cb );
1123
1124     input_resource_ResetAout(mp->input.p_resource);
1125 }
1126
1127 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
1128                                         libvlc_audio_setup_cb setup,
1129                                         libvlc_audio_cleanup_cb cleanup )
1130 {
1131     var_SetAddress( mp, "amem-setup", setup );
1132     var_SetAddress( mp, "amem-cleanup", cleanup );
1133
1134     input_resource_ResetAout(mp->input.p_resource);
1135 }
1136
1137 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
1138                               unsigned rate, unsigned channels )
1139 {
1140     var_SetString( mp, "amem-format", format );
1141     var_SetInteger( mp, "amem-rate", rate );
1142     var_SetInteger( mp, "amem-channels", channels );
1143
1144     input_resource_ResetAout(mp->input.p_resource);
1145 }
1146
1147
1148 /**************************************************************************
1149  * Getters for stream information
1150  **************************************************************************/
1151 libvlc_time_t libvlc_media_player_get_length(
1152                              libvlc_media_player_t *p_mi )
1153 {
1154     input_thread_t *p_input_thread;
1155     libvlc_time_t i_time;
1156
1157     p_input_thread = libvlc_get_input_thread ( p_mi );
1158     if( !p_input_thread )
1159         return -1;
1160
1161     i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1162     vlc_object_release( p_input_thread );
1163
1164     return i_time;
1165 }
1166
1167 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1168 {
1169     input_thread_t *p_input_thread;
1170     libvlc_time_t i_time;
1171
1172     p_input_thread = libvlc_get_input_thread ( p_mi );
1173     if( !p_input_thread )
1174         return -1;
1175
1176     i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1177     vlc_object_release( p_input_thread );
1178     return i_time;
1179 }
1180
1181 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1182                                    libvlc_time_t i_time )
1183 {
1184     input_thread_t *p_input_thread;
1185
1186     p_input_thread = libvlc_get_input_thread ( p_mi );
1187     if( !p_input_thread )
1188         return;
1189
1190     var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1191     vlc_object_release( p_input_thread );
1192 }
1193
1194 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1195                                        float position )
1196 {
1197     input_thread_t *p_input_thread;
1198
1199     p_input_thread = libvlc_get_input_thread ( p_mi );
1200     if( !p_input_thread )
1201         return;
1202
1203     var_SetFloat( p_input_thread, "position", position );
1204     vlc_object_release( p_input_thread );
1205 }
1206
1207 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1208 {
1209     input_thread_t *p_input_thread;
1210     float f_position;
1211
1212     p_input_thread = libvlc_get_input_thread ( p_mi );
1213     if( !p_input_thread )
1214         return -1.0;
1215
1216     f_position = var_GetFloat( p_input_thread, "position" );
1217     vlc_object_release( p_input_thread );
1218
1219     return f_position;
1220 }
1221
1222 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1223                                       int chapter )
1224 {
1225     input_thread_t *p_input_thread;
1226
1227     p_input_thread = libvlc_get_input_thread ( p_mi );
1228     if( !p_input_thread )
1229         return;
1230
1231     var_SetInteger( p_input_thread, "chapter", chapter );
1232     vlc_object_release( p_input_thread );
1233 }
1234
1235 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1236 {
1237     input_thread_t *p_input_thread;
1238     int i_chapter;
1239
1240     p_input_thread = libvlc_get_input_thread ( p_mi );
1241     if( !p_input_thread )
1242         return -1;
1243
1244     i_chapter = var_GetInteger( p_input_thread, "chapter" );
1245     vlc_object_release( p_input_thread );
1246
1247     return i_chapter;
1248 }
1249
1250 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1251 {
1252     input_thread_t *p_input_thread;
1253     vlc_value_t val;
1254
1255     p_input_thread = libvlc_get_input_thread ( p_mi );
1256     if( !p_input_thread )
1257         return -1;
1258
1259     int i_ret = var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1260     vlc_object_release( p_input_thread );
1261
1262     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1263 }
1264
1265 int libvlc_media_player_get_chapter_count_for_title(
1266                                  libvlc_media_player_t *p_mi,
1267                                  int i_title )
1268 {
1269     input_thread_t *p_input_thread;
1270     vlc_value_t val;
1271
1272     p_input_thread = libvlc_get_input_thread ( p_mi );
1273     if( !p_input_thread )
1274         return -1;
1275
1276     char *psz_name;
1277     if( asprintf( &psz_name,  "title %2i", i_title ) == -1 )
1278     {
1279         vlc_object_release( p_input_thread );
1280         return -1;
1281     }
1282     int i_ret = var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1283     vlc_object_release( p_input_thread );
1284     free( psz_name );
1285
1286     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1287 }
1288
1289 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1290                                     int i_title )
1291 {
1292     input_thread_t *p_input_thread;
1293
1294     p_input_thread = libvlc_get_input_thread ( p_mi );
1295     if( !p_input_thread )
1296         return;
1297
1298     var_SetInteger( p_input_thread, "title", i_title );
1299     vlc_object_release( p_input_thread );
1300
1301     //send event
1302     libvlc_event_t event;
1303     event.type = libvlc_MediaPlayerTitleChanged;
1304     event.u.media_player_title_changed.new_title = i_title;
1305     libvlc_event_send( p_mi->p_event_manager, &event );
1306 }
1307
1308 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1309 {
1310     input_thread_t *p_input_thread;
1311     int i_title;
1312
1313     p_input_thread = libvlc_get_input_thread ( p_mi );
1314     if( !p_input_thread )
1315         return -1;
1316
1317     i_title = var_GetInteger( p_input_thread, "title" );
1318     vlc_object_release( p_input_thread );
1319
1320     return i_title;
1321 }
1322
1323 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1324 {
1325     input_thread_t *p_input_thread;
1326     vlc_value_t val;
1327
1328     p_input_thread = libvlc_get_input_thread ( p_mi );
1329     if( !p_input_thread )
1330         return -1;
1331
1332     int i_ret = var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1333     vlc_object_release( p_input_thread );
1334
1335     return i_ret == VLC_SUCCESS ? val.i_int : -1;
1336 }
1337
1338 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1339 {
1340     input_thread_t *p_input_thread;
1341
1342     p_input_thread = libvlc_get_input_thread ( p_mi );
1343     if( !p_input_thread )
1344         return;
1345
1346     int i_type = var_Type( p_input_thread, "next-chapter" );
1347     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1348                             "next-chapter":"next-title" );
1349
1350     vlc_object_release( p_input_thread );
1351 }
1352
1353 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1354 {
1355     input_thread_t *p_input_thread;
1356
1357     p_input_thread = libvlc_get_input_thread ( p_mi );
1358     if( !p_input_thread )
1359         return;
1360
1361     int i_type = var_Type( p_input_thread, "next-chapter" );
1362     var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1363                             "prev-chapter":"prev-title" );
1364
1365     vlc_object_release( p_input_thread );
1366 }
1367
1368 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1369 {
1370     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1371     double f_fps = 0.0;
1372
1373     if( p_input_thread )
1374     {
1375         if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1376             f_fps = 0.0;
1377         vlc_object_release( p_input_thread );
1378     }
1379     return f_fps;
1380 }
1381
1382 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1383 {
1384     bool b_will_play;
1385     input_thread_t *p_input_thread =
1386                             libvlc_get_input_thread ( p_mi );
1387     if ( !p_input_thread )
1388         return false;
1389
1390     b_will_play = !p_input_thread->b_dead;
1391     vlc_object_release( p_input_thread );
1392
1393     return b_will_play;
1394 }
1395
1396 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1397 {
1398     var_SetFloat (p_mi, "rate", rate);
1399
1400     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1401     if( !p_input_thread )
1402         return 0;
1403     var_SetFloat( p_input_thread, "rate", rate );
1404     vlc_object_release( p_input_thread );
1405     return 0;
1406 }
1407
1408 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1409 {
1410     return var_GetFloat (p_mi, "rate");
1411 }
1412
1413 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1414 {
1415     lock(p_mi);
1416     libvlc_state_t state = p_mi->state;
1417     unlock(p_mi);
1418     return state;
1419 }
1420
1421 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1422 {
1423     input_thread_t *p_input_thread;
1424     bool b_seekable;
1425
1426     p_input_thread = libvlc_get_input_thread ( p_mi );
1427     if ( !p_input_thread )
1428         return false;
1429     b_seekable = var_GetBool( p_input_thread, "can-seek" );
1430     vlc_object_release( p_input_thread );
1431
1432     return b_seekable;
1433 }
1434
1435 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1436                                    unsigned navigate )
1437 {
1438     static const vlc_action_t map[] =
1439     {
1440         INPUT_NAV_ACTIVATE, INPUT_NAV_UP, INPUT_NAV_DOWN,
1441         INPUT_NAV_LEFT, INPUT_NAV_RIGHT,
1442     };
1443
1444     if( navigate >= sizeof(map) / sizeof(map[0]) )
1445       return;
1446
1447     input_thread_t *p_input = libvlc_get_input_thread ( p_mi );
1448     if ( p_input == NULL )
1449       return;
1450
1451     input_Control( p_input, map[navigate], NULL );
1452     vlc_object_release( p_input );
1453 }
1454
1455 /* internal function, used by audio, video */
1456 libvlc_track_description_t *
1457         libvlc_get_track_description( libvlc_media_player_t *p_mi,
1458                                       const char *psz_variable )
1459 {
1460     input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1461     libvlc_track_description_t *p_track_description = NULL,
1462                                *p_actual, *p_previous;
1463
1464     if( !p_input )
1465         return NULL;
1466
1467     vlc_value_t val_list, text_list;
1468     int i_ret = var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list );
1469     if( i_ret != VLC_SUCCESS )
1470         return NULL;
1471
1472     /* no tracks */
1473     if( val_list.p_list->i_count <= 0 )
1474         goto end;
1475
1476     p_track_description = ( libvlc_track_description_t * )
1477         malloc( sizeof( libvlc_track_description_t ) );
1478     if ( !p_track_description )
1479     {
1480         libvlc_printerr( "Not enough memory" );
1481         goto end;
1482     }
1483     p_actual = p_track_description;
1484     p_previous = NULL;
1485     for( int i = 0; i < val_list.p_list->i_count; i++ )
1486     {
1487         if( !p_actual )
1488         {
1489             p_actual = ( libvlc_track_description_t * )
1490                 malloc( sizeof( libvlc_track_description_t ) );
1491             if ( !p_actual )
1492             {
1493                 libvlc_track_description_list_release( p_track_description );
1494                 libvlc_printerr( "Not enough memory" );
1495                 goto end;
1496             }
1497         }
1498         p_actual->i_id = val_list.p_list->p_values[i].i_int;
1499         p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1500         p_actual->p_next = NULL;
1501         if( p_previous )
1502             p_previous->p_next = p_actual;
1503         p_previous = p_actual;
1504         p_actual =  NULL;
1505     }
1506
1507 end:
1508     var_FreeList( &val_list, &text_list );
1509     vlc_object_release( p_input );
1510
1511     return p_track_description;
1512 }
1513
1514 // Deprecated alias for libvlc_track_description_list_release
1515 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1516 {
1517     libvlc_track_description_list_release( p_td );
1518 }
1519
1520 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1521 {
1522     libvlc_track_description_t *p_actual, *p_before;
1523     p_actual = p_td;
1524
1525     while ( p_actual )
1526     {
1527         free( p_actual->psz_name );
1528         p_before = p_actual;
1529         p_actual = p_before->p_next;
1530         free( p_before );
1531     }
1532 }
1533
1534 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1535 {
1536     input_thread_t *p_input_thread;
1537     bool b_can_pause;
1538
1539     p_input_thread = libvlc_get_input_thread ( p_mi );
1540     if ( !p_input_thread )
1541         return false;
1542     b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1543     vlc_object_release( p_input_thread );
1544
1545     return b_can_pause;
1546 }
1547
1548 int libvlc_media_player_program_scrambled( libvlc_media_player_t *p_mi )
1549 {
1550     input_thread_t *p_input_thread;
1551     bool b_program_scrambled;
1552
1553     p_input_thread = libvlc_get_input_thread ( p_mi );
1554     if ( !p_input_thread )
1555         return false;
1556     b_program_scrambled = var_GetBool( p_input_thread, "program-scrambled" );
1557     vlc_object_release( p_input_thread );
1558
1559     return b_program_scrambled;
1560 }
1561
1562 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1563 {
1564     input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1565     if( p_input_thread != NULL )
1566     {
1567         var_TriggerCallback( p_input_thread, "frame-next" );
1568         vlc_object_release( p_input_thread );
1569     }
1570 }
1571
1572 /**
1573  * Private lookup table to get subpicture alignment flag values corresponding
1574  * to a libvlc_position_t enumerated value.
1575  */
1576 static const unsigned char position_subpicture_alignment[] = {
1577     [libvlc_position_center]       = 0,
1578     [libvlc_position_left]         = SUBPICTURE_ALIGN_LEFT,
1579     [libvlc_position_right]        = SUBPICTURE_ALIGN_RIGHT,
1580     [libvlc_position_top]          = SUBPICTURE_ALIGN_TOP,
1581     [libvlc_position_top_left]     = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT,
1582     [libvlc_position_top_right]    = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT,
1583     [libvlc_position_bottom]       = SUBPICTURE_ALIGN_BOTTOM,
1584     [libvlc_position_bottom_left]  = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT,
1585     [libvlc_position_bottom_right] = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT
1586 };
1587
1588 void libvlc_media_player_set_video_title_display( libvlc_media_player_t *p_mi, libvlc_position_t position, unsigned timeout )
1589 {
1590     assert( position >= libvlc_position_disable && position <= libvlc_position_bottom_right );
1591
1592     if ( position != libvlc_position_disable )
1593     {
1594         var_SetBool( p_mi, "video-title-show", true );
1595         var_SetInteger( p_mi, "video-title-position", position_subpicture_alignment[position] );
1596         var_SetInteger( p_mi, "video-title-timeout", timeout );
1597     }
1598     else
1599     {
1600         var_SetBool( p_mi, "video-title-show", false );
1601     }
1602 }
1603
1604 /**
1605  * Maximum size of a formatted equalizer amplification band frequency value.
1606  *
1607  * The allowed value range is supposed to be constrained from -20.0 to 20.0.
1608  *
1609  * The format string " %.07f" with a minimum value of "-20" gives a maximum
1610  * string length of e.g. " -19.1234567", i.e. 12 bytes (not including the null
1611  * terminator).
1612  */
1613 #define EQZ_BAND_VALUE_SIZE 12
1614
1615 int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
1616 {
1617     char bands[EQZ_BANDS_MAX * EQZ_BAND_VALUE_SIZE + 1];
1618
1619     if( p_equalizer != NULL )
1620     {
1621         for( unsigned i = 0, c = 0; i < EQZ_BANDS_MAX; i++ )
1622         {
1623             c += snprintf( bands + c, sizeof(bands) - c, " %.07f",
1624                           p_equalizer->f_amp[i] );
1625             if( unlikely(c >= sizeof(bands)) )
1626                 return -1;
1627         }
1628
1629         var_SetFloat( p_mi, "equalizer-preamp", p_equalizer->f_preamp );
1630         var_SetString( p_mi, "equalizer-bands", bands );
1631     }
1632     var_SetString( p_mi, "audio-filter", p_equalizer ? "equalizer" : "" );
1633
1634     audio_output_t *p_aout = input_resource_HoldAout( p_mi->input.p_resource );
1635     if( p_aout != NULL )
1636     {
1637         if( p_equalizer != NULL )
1638         {
1639             var_SetFloat( p_aout, "equalizer-preamp", p_equalizer->f_preamp );
1640             var_SetString( p_aout, "equalizer-bands", bands );
1641         }
1642
1643         var_SetString( p_aout, "audio-filter", p_equalizer ? "equalizer" : "" );
1644         vlc_object_release( p_aout );
1645     }
1646
1647     return 0;
1648 }