1 /*****************************************************************************
2 * media_player.c: Libvlc API Media Instance management functions
3 *****************************************************************************
4 * Copyright (C) 2005-2009 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
30 #include <vlc/libvlc.h>
31 #include <vlc/libvlc_media.h>
32 #include <vlc/libvlc_events.h>
34 #include <vlc_demux.h>
35 #include <vlc_input.h>
40 #include "libvlc_internal.h"
41 #include "media_internal.h" // libvlc_media_set_state()
42 #include "media_player_internal.h"
45 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
46 vlc_value_t oldval, vlc_value_t newval,
49 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
50 vlc_value_t oldval, vlc_value_t newval,
53 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
54 vlc_value_t oldval, vlc_value_t newval,
58 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
59 vlc_value_t oldval, vlc_value_t newval, void *p_data );
61 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
67 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
68 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
70 libvlc_event_manager_register_event_type(mp->p_event_manager, type);
74 * The input lock protects the input and input resource pointer.
75 * It MUST NOT be used from callbacks.
77 * The object lock protects the reset, namely the media and the player state.
78 * It can, and usually needs to be taken from callbacks.
79 * The object lock can be acquired under the input lock... and consequently
80 * the opposite order is STRICTLY PROHIBITED.
82 static inline void lock(libvlc_media_player_t *mp)
84 vlc_mutex_lock(&mp->object_lock);
87 static inline void unlock(libvlc_media_player_t *mp)
89 vlc_mutex_unlock(&mp->object_lock);
92 static inline void lock_input(libvlc_media_player_t *mp)
94 vlc_mutex_lock(&mp->input.lock);
97 static inline void unlock_input(libvlc_media_player_t *mp)
99 vlc_mutex_unlock(&mp->input.lock);
103 * Release the associated input thread.
105 * Object lock is NOT held.
106 * Input lock is held or instance is being destroyed.
108 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
112 input_thread_t *p_input_thread = p_mi->input.p_thread;
113 if( !p_input_thread )
116 var_DelCallback( p_input_thread, "can-seek",
117 input_seekable_changed, p_mi );
118 var_DelCallback( p_input_thread, "can-pause",
119 input_pausable_changed, p_mi );
120 var_DelCallback( p_input_thread, "intf-event",
121 input_event_changed, p_mi );
123 /* We owned this one */
124 input_Stop( p_input_thread, b_input_abort );
126 vlc_thread_join( p_input_thread );
128 assert( p_input_thread->b_dead );
130 p_mi->input.p_thread = NULL;
131 vlc_object_release( p_input_thread );
135 * Retrieve the input thread. Be sure to release the object
136 * once you are done with it. (libvlc Internal)
138 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
140 input_thread_t *p_input_thread;
145 p_input_thread = p_mi->input.p_thread;
147 vlc_object_hold( p_input_thread );
149 libvlc_printerr( "No active input" );
152 return p_input_thread;
156 * Set the internal state of the media_player. (media player Internal)
158 * Function will lock the media_player.
160 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
167 libvlc_media_t *media = p_mi->p_md;
169 libvlc_media_retain(media);
176 // Also set the state of the corresponding media
177 // This is strictly for convenience.
178 libvlc_media_set_state(media, state);
180 libvlc_media_release(media);
185 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
186 vlc_value_t oldval, vlc_value_t newval,
192 libvlc_media_player_t * p_mi = p_userdata;
193 libvlc_event_t event;
195 event.type = libvlc_MediaPlayerSeekableChanged;
196 event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
198 libvlc_event_send( p_mi->p_event_manager, &event );
203 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
204 vlc_value_t oldval, vlc_value_t newval,
210 libvlc_media_player_t * p_mi = p_userdata;
211 libvlc_event_t event;
213 event.type = libvlc_MediaPlayerPausableChanged;
214 event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
216 libvlc_event_send( p_mi->p_event_manager, &event );
221 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
222 vlc_value_t oldval, vlc_value_t newval,
226 input_thread_t * p_input = (input_thread_t *)p_this;
227 libvlc_media_player_t * p_mi = p_userdata;
228 libvlc_event_t event;
230 assert( !strcmp( psz_cmd, "intf-event" ) );
232 if( newval.i_int == INPUT_EVENT_STATE )
234 libvlc_state_t libvlc_state;
236 switch ( var_GetInteger( p_input, "state" ) )
239 libvlc_state = libvlc_NothingSpecial;
240 event.type = libvlc_MediaPlayerNothingSpecial;
243 libvlc_state = libvlc_Opening;
244 event.type = libvlc_MediaPlayerOpening;
247 libvlc_state = libvlc_Playing;
248 event.type = libvlc_MediaPlayerPlaying;
251 libvlc_state = libvlc_Paused;
252 event.type = libvlc_MediaPlayerPaused;
255 libvlc_state = libvlc_Ended;
256 event.type = libvlc_MediaPlayerEndReached;
259 libvlc_state = libvlc_Error;
260 event.type = libvlc_MediaPlayerEncounteredError;
267 set_state( p_mi, libvlc_state, false );
268 libvlc_event_send( p_mi->p_event_manager, &event );
270 else if( newval.i_int == INPUT_EVENT_ABORT )
272 libvlc_state_t libvlc_state = libvlc_Stopped;
273 event.type = libvlc_MediaPlayerStopped;
275 set_state( p_mi, libvlc_state, false );
276 libvlc_event_send( p_mi->p_event_manager, &event );
278 else if( newval.i_int == INPUT_EVENT_POSITION )
280 if( var_GetInteger( p_input, "state" ) != PLAYING_S )
281 return VLC_SUCCESS; /* Don't send the position while stopped */
284 event.type = libvlc_MediaPlayerPositionChanged;
285 event.u.media_player_position_changed.new_position =
286 var_GetFloat( p_input, "position" );
287 libvlc_event_send( p_mi->p_event_manager, &event );
290 event.type = libvlc_MediaPlayerTimeChanged;
291 event.u.media_player_time_changed.new_time =
292 from_mtime(var_GetTime( p_input, "time" ));
293 libvlc_event_send( p_mi->p_event_manager, &event );
295 else if( newval.i_int == INPUT_EVENT_LENGTH )
297 event.type = libvlc_MediaPlayerLengthChanged;
298 event.u.media_player_length_changed.new_length =
299 from_mtime(var_GetTime( p_input, "length" ));
300 libvlc_event_send( p_mi->p_event_manager, &event );
307 /**************************************************************************
308 * Snapshot Taken Event.
310 * FIXME: This snapshot API interface makes no sense in media_player.
311 *************************************************************************/
312 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
313 vlc_value_t oldval, vlc_value_t newval, void *p_data )
315 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
317 libvlc_media_player_t *mp = p_data;
318 libvlc_event_t event;
319 event.type = libvlc_MediaPlayerSnapshotTaken;
320 event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
321 libvlc_event_send(mp->p_event_manager, &event);
326 static input_thread_t *find_input (vlc_object_t *obj)
328 libvlc_media_player_t *mp = (libvlc_media_player_t *)obj;
330 return libvlc_get_input_thread (mp);
334 static void libvlc_media_player_destroy( libvlc_media_player_t * );
337 /**************************************************************************
338 * Create a Media Instance object.
341 * - All items created by _new start with a refcount set to 1.
342 * - Accessor _release decrease the refcount by 1, if after that
343 * operation the refcount is 0, the object is destroyed.
344 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
346 * Object locking strategy:
347 * - No lock held while in constructor.
348 * - When accessing any member variable this lock is held. (XXX who locks?)
349 * - When attempting to destroy the object the lock is also held.
350 **************************************************************************/
351 libvlc_media_player_t *
352 libvlc_media_player_new( libvlc_instance_t *instance )
354 libvlc_media_player_t * mp;
358 mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
359 if (unlikely(mp == NULL))
361 libvlc_printerr("Not enough memory");
364 vlc_object_attach (mp, mp->p_libvlc);
367 var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
370 var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
372 var_Create (mp, "drawable-hwnd", VLC_VAR_ADDRESS);
375 var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
376 var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
379 var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
380 var_SetBool (mp, "keyboard-events", true);
381 var_Create (mp, "mouse-events", VLC_VAR_BOOL);
382 var_SetBool (mp, "mouse-events", true);
384 var_Create (mp, "fullscreen", VLC_VAR_BOOL);
385 var_Create (mp, "autoscale", VLC_VAR_BOOL);
386 var_SetBool (mp, "autoscale", true);
387 var_Create (mp, "scale", VLC_VAR_FLOAT);
388 var_SetFloat (mp, "scale", 1.);
389 var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
390 var_Create (mp, "crop", VLC_VAR_STRING);
391 var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
392 var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
394 var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
396 var_Create (mp, "marq-marquee", VLC_VAR_STRING);
397 var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
398 var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
399 var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
400 var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
401 var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
402 var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
403 var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
404 var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
406 var_Create (mp, "logo-file", VLC_VAR_STRING);
407 var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
408 var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
409 var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
410 var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
411 var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
412 var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
414 var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
415 var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
416 var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
417 var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
418 var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
421 var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
422 var_Create (mp, "volume-muted", VLC_VAR_BOOL);
423 var_Create (mp, "saved-volume", VLC_VAR_INTEGER);
424 var_Create (mp, "volume-change", VLC_VAR_VOID);
425 var_Create (mp, "find-input-callback", VLC_VAR_ADDRESS);
426 var_SetAddress (mp, "find-input-callback", find_input);
429 mp->state = libvlc_NothingSpecial;
430 mp->p_libvlc_instance = instance;
431 mp->input.p_thread = NULL;
432 mp->input.p_resource = NULL;
433 vlc_mutex_init (&mp->input.lock);
435 mp->p_event_manager = libvlc_event_manager_new(mp, instance);
436 if (unlikely(mp->p_event_manager == NULL))
438 vlc_object_release(mp);
441 vlc_mutex_init(&mp->object_lock);
443 register_event(mp, NothingSpecial);
444 register_event(mp, Opening);
445 register_event(mp, Buffering);
446 register_event(mp, Playing);
447 register_event(mp, Paused);
448 register_event(mp, Stopped);
449 register_event(mp, Forward);
450 register_event(mp, Backward);
451 register_event(mp, EndReached);
452 register_event(mp, EncounteredError);
453 register_event(mp, SeekableChanged);
455 register_event(mp, PositionChanged);
456 register_event(mp, TimeChanged);
457 register_event(mp, LengthChanged);
458 register_event(mp, TitleChanged);
459 register_event(mp, PausableChanged);
461 /* Snapshot initialization */
462 register_event(mp, SnapshotTaken);
464 register_event(mp, MediaChanged);
466 /* Attach a var callback to the global object to provide the glue between
467 * vout_thread that generates the event and media_player that re-emits it
468 * with its own event manager
470 * FIXME: It's unclear why we want to put this in public API, and why we
471 * want to expose it in such a limiting and ugly way.
473 var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
475 libvlc_retain(instance);
479 /**************************************************************************
480 * Create a Media Instance object with a media descriptor.
481 **************************************************************************/
482 libvlc_media_player_t *
483 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
485 libvlc_media_player_t * p_mi;
487 p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
491 libvlc_media_retain( p_md );
497 /**************************************************************************
498 * Destroy a Media Instance object (libvlc internal)
500 * Warning: No lock held here, but hey, this is internal. Caller must lock.
501 **************************************************************************/
502 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
506 /* Detach Callback from the main libvlc object */
507 var_DelCallback( p_mi->p_libvlc,
508 "snapshot-file", snapshot_was_taken, p_mi );
510 /* No need for lock_input() because no other threads knows us anymore */
511 if( p_mi->input.p_thread )
512 release_input_thread(p_mi, true);
513 if( p_mi->input.p_resource )
515 input_resource_Terminate( p_mi->input.p_resource );
516 input_resource_Release( p_mi->input.p_resource );
517 p_mi->input.p_resource = NULL;
519 vlc_mutex_destroy( &p_mi->input.lock );
521 libvlc_event_manager_release( p_mi->p_event_manager );
522 libvlc_media_release( p_mi->p_md );
523 vlc_mutex_destroy( &p_mi->object_lock );
525 libvlc_instance_t *instance = p_mi->p_libvlc_instance;
526 vlc_object_release( p_mi );
527 libvlc_release(instance);
530 /**************************************************************************
531 * Release a Media Instance object.
533 * Function does the locking.
534 **************************************************************************/
535 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
541 destroy = !--p_mi->i_refcount;
545 libvlc_media_player_destroy( p_mi );
548 /**************************************************************************
549 * Retain a Media Instance object.
551 * Caller must hold the lock.
552 **************************************************************************/
553 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
562 /**************************************************************************
563 * Set the Media descriptor associated with the instance.
565 * Enter without lock -- function will lock the object.
566 **************************************************************************/
567 void libvlc_media_player_set_media(
568 libvlc_media_player_t *p_mi,
569 libvlc_media_t *p_md )
573 /* FIXME I am not sure if it is a user request or on die(eof/error)
575 release_input_thread( p_mi,
576 p_mi->input.p_thread &&
577 !p_mi->input.p_thread->b_eof &&
578 !p_mi->input.p_thread->b_error );
581 set_state( p_mi, libvlc_NothingSpecial, true );
582 unlock_input( p_mi );
584 libvlc_media_release( p_mi->p_md );
590 return; /* It is ok to pass a NULL md */
593 libvlc_media_retain( p_md );
596 /* The policy here is to ignore that we were created using a different
597 * libvlc_instance, because we don't really care */
598 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
602 /* Send an event for the newly available media */
603 libvlc_event_t event;
604 event.type = libvlc_MediaPlayerMediaChanged;
605 event.u.media_player_media_changed.new_media = p_md;
606 libvlc_event_send( p_mi->p_event_manager, &event );
610 /**************************************************************************
611 * Get the Media descriptor associated with the instance.
612 **************************************************************************/
614 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
621 libvlc_media_retain( p_mi->p_md );
626 /**************************************************************************
627 * Get the event Manager.
628 **************************************************************************/
629 libvlc_event_manager_t *
630 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
632 return p_mi->p_event_manager;
635 /**************************************************************************
636 * Tell media player to start playing.
637 **************************************************************************/
638 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
642 input_thread_t *p_input_thread = p_mi->input.p_thread;
645 /* A thread already exists, send it a play message */
646 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
647 unlock_input( p_mi );
651 /* Ignore previous exception */
657 unlock_input( p_mi );
658 libvlc_printerr( "No associated media descriptor" );
662 if( !p_mi->input.p_resource )
663 p_mi->input.p_resource = input_resource_New( VLC_OBJECT( p_mi ) );
664 p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
665 p_mi->input.p_resource );
667 if( !p_input_thread )
670 libvlc_printerr( "Not enough memory" );
674 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
675 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
676 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
678 if( input_Start( p_input_thread ) )
681 var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
682 var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
683 var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
684 vlc_object_release( p_input_thread );
685 libvlc_printerr( "Input initialization failure" );
688 p_mi->input.p_thread = p_input_thread;
693 /**************************************************************************
695 **************************************************************************/
696 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
698 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
699 if( !p_input_thread )
702 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
703 if( state == libvlc_Playing || state == libvlc_Buffering )
705 if( libvlc_media_player_can_pause( p_mi ) )
706 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
708 libvlc_media_player_stop( p_mi );
711 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
713 vlc_object_release( p_input_thread );
716 /**************************************************************************
717 * Tells whether the media player is currently playing.
719 * Enter with lock held.
720 **************************************************************************/
721 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
723 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
724 return (libvlc_Playing == state) || (libvlc_Buffering == state);
727 /**************************************************************************
729 **************************************************************************/
730 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
732 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
735 release_input_thread( p_mi, true ); /* This will stop the input thread */
737 /* Force to go to stopped state, in case we were in Ended, or Error
739 if( state != libvlc_Stopped )
741 set_state( p_mi, libvlc_Stopped, false );
743 /* Construct and send the event */
744 libvlc_event_t event;
745 event.type = libvlc_MediaPlayerStopped;
746 libvlc_event_send( p_mi->p_event_manager, &event );
749 if( p_mi->input.p_resource != NULL )
750 input_resource_TerminateVout( p_mi->input.p_resource );
754 /**************************************************************************
756 **************************************************************************/
757 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
760 assert (p_mi != NULL);
762 var_SetAddress (p_mi, "drawable-nsobject", drawable);
764 (void) p_mi; (void)drawable;
768 /**************************************************************************
770 **************************************************************************/
771 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
773 assert (p_mi != NULL);
775 return var_GetAddress (p_mi, "drawable-nsobject");
781 /**************************************************************************
783 **************************************************************************/
784 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
788 var_SetInteger (p_mi, "drawable-agl", drawable);
790 (void) p_mi; (void)drawable;
794 /**************************************************************************
796 **************************************************************************/
797 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
799 assert (p_mi != NULL);
801 return var_GetInteger (p_mi, "drawable-agl");
807 /**************************************************************************
809 **************************************************************************/
810 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
813 assert (p_mi != NULL);
814 var_SetInteger (p_mi, "drawable-xid", drawable);
817 /**************************************************************************
819 **************************************************************************/
820 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
822 return var_GetInteger (p_mi, "drawable-xid");
825 /**************************************************************************
827 **************************************************************************/
828 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
831 assert (p_mi != NULL);
833 var_SetAddress (p_mi, "drawable-hwnd", drawable);
835 (void) p_mi; (void) drawable;
839 /**************************************************************************
841 **************************************************************************/
842 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
844 assert (p_mi != NULL);
846 return var_GetAddress (p_mi, "drawable-hwnd");
852 /**************************************************************************
853 * Getters for stream information
854 **************************************************************************/
855 libvlc_time_t libvlc_media_player_get_length(
856 libvlc_media_player_t *p_mi )
858 input_thread_t *p_input_thread;
859 libvlc_time_t i_time;
861 p_input_thread = libvlc_get_input_thread ( p_mi );
862 if( !p_input_thread )
865 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
866 vlc_object_release( p_input_thread );
871 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
873 input_thread_t *p_input_thread;
874 libvlc_time_t i_time;
876 p_input_thread = libvlc_get_input_thread ( p_mi );
877 if( !p_input_thread )
880 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
881 vlc_object_release( p_input_thread );
885 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
886 libvlc_time_t i_time )
888 input_thread_t *p_input_thread;
890 p_input_thread = libvlc_get_input_thread ( p_mi );
891 if( !p_input_thread )
894 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
895 vlc_object_release( p_input_thread );
898 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
901 input_thread_t *p_input_thread;
903 p_input_thread = libvlc_get_input_thread ( p_mi );
904 if( !p_input_thread )
907 var_SetFloat( p_input_thread, "position", position );
908 vlc_object_release( p_input_thread );
911 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
913 input_thread_t *p_input_thread;
916 p_input_thread = libvlc_get_input_thread ( p_mi );
917 if( !p_input_thread )
920 f_position = var_GetFloat( p_input_thread, "position" );
921 vlc_object_release( p_input_thread );
926 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
929 input_thread_t *p_input_thread;
931 p_input_thread = libvlc_get_input_thread ( p_mi );
932 if( !p_input_thread )
935 var_SetInteger( p_input_thread, "chapter", chapter );
936 vlc_object_release( p_input_thread );
939 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
941 input_thread_t *p_input_thread;
944 p_input_thread = libvlc_get_input_thread ( p_mi );
945 if( !p_input_thread )
948 i_chapter = var_GetInteger( p_input_thread, "chapter" );
949 vlc_object_release( p_input_thread );
954 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
956 input_thread_t *p_input_thread;
959 p_input_thread = libvlc_get_input_thread ( p_mi );
960 if( !p_input_thread )
963 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
964 vlc_object_release( p_input_thread );
969 int libvlc_media_player_get_chapter_count_for_title(
970 libvlc_media_player_t *p_mi,
973 input_thread_t *p_input_thread;
976 p_input_thread = libvlc_get_input_thread ( p_mi );
977 if( !p_input_thread )
981 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
983 vlc_object_release( p_input_thread );
986 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
987 vlc_object_release( p_input_thread );
993 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
996 input_thread_t *p_input_thread;
998 p_input_thread = libvlc_get_input_thread ( p_mi );
999 if( !p_input_thread )
1002 var_SetInteger( p_input_thread, "title", i_title );
1003 vlc_object_release( p_input_thread );
1006 libvlc_event_t event;
1007 event.type = libvlc_MediaPlayerTitleChanged;
1008 event.u.media_player_title_changed.new_title = i_title;
1009 libvlc_event_send( p_mi->p_event_manager, &event );
1012 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1014 input_thread_t *p_input_thread;
1017 p_input_thread = libvlc_get_input_thread ( p_mi );
1018 if( !p_input_thread )
1021 i_title = var_GetInteger( p_input_thread, "title" );
1022 vlc_object_release( p_input_thread );
1027 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1029 input_thread_t *p_input_thread;
1032 p_input_thread = libvlc_get_input_thread ( p_mi );
1033 if( !p_input_thread )
1036 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1037 vlc_object_release( p_input_thread );
1042 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1044 input_thread_t *p_input_thread;
1046 p_input_thread = libvlc_get_input_thread ( p_mi );
1047 if( !p_input_thread )
1050 int i_type = var_Type( p_input_thread, "next-chapter" );
1051 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1052 "next-chapter":"next-title", true );
1054 vlc_object_release( p_input_thread );
1057 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1059 input_thread_t *p_input_thread;
1061 p_input_thread = libvlc_get_input_thread ( p_mi );
1062 if( !p_input_thread )
1065 int i_type = var_Type( p_input_thread, "next-chapter" );
1066 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1067 "prev-chapter":"prev-title", true );
1069 vlc_object_release( p_input_thread );
1072 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1074 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1077 if( p_input_thread )
1079 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1081 vlc_object_release( p_input_thread );
1086 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1089 input_thread_t *p_input_thread =
1090 libvlc_get_input_thread ( p_mi );
1091 if ( !p_input_thread )
1094 b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1095 vlc_object_release( p_input_thread );
1100 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1104 libvlc_printerr ("Playing backward not supported");
1108 var_SetFloat (p_mi, "rate", rate);
1110 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1111 if( !p_input_thread )
1113 var_SetFloat( p_input_thread, "rate", rate );
1114 vlc_object_release( p_input_thread );
1118 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1120 return var_GetFloat (p_mi, "rate");
1123 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1126 libvlc_state_t state = p_mi->state;
1131 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1133 input_thread_t *p_input_thread;
1136 p_input_thread = libvlc_get_input_thread ( p_mi );
1137 if ( !p_input_thread )
1139 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1140 vlc_object_release( p_input_thread );
1145 /* internal function, used by audio, video */
1146 libvlc_track_description_t *
1147 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1148 const char *psz_variable )
1150 input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1151 libvlc_track_description_t *p_track_description = NULL,
1152 *p_actual, *p_previous;
1157 vlc_value_t val_list, text_list;
1158 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1161 if( val_list.p_list->i_count <= 0 )
1164 p_track_description = ( libvlc_track_description_t * )
1165 malloc( sizeof( libvlc_track_description_t ) );
1166 if ( !p_track_description )
1168 libvlc_printerr( "Not enough memory" );
1171 p_actual = p_track_description;
1173 for( int i = 0; i < val_list.p_list->i_count; i++ )
1177 p_actual = ( libvlc_track_description_t * )
1178 malloc( sizeof( libvlc_track_description_t ) );
1181 libvlc_track_description_release( p_track_description );
1182 libvlc_printerr( "Not enough memory" );
1186 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1187 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1188 p_actual->p_next = NULL;
1190 p_previous->p_next = p_actual;
1191 p_previous = p_actual;
1196 var_FreeList( &val_list, &text_list );
1197 vlc_object_release( p_input );
1199 return p_track_description;
1202 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1204 libvlc_track_description_t *p_actual, *p_before;
1209 free( p_actual->psz_name );
1210 p_before = p_actual;
1211 p_actual = p_before->p_next;
1216 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1218 input_thread_t *p_input_thread;
1221 p_input_thread = libvlc_get_input_thread ( p_mi );
1222 if ( !p_input_thread )
1224 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1225 vlc_object_release( p_input_thread );
1230 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1232 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1233 if( p_input_thread != NULL )
1235 var_TriggerCallback( p_input_thread, "frame-next" );
1236 vlc_object_release( p_input_thread );