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);
73 static inline void lock(libvlc_media_player_t *mp)
75 vlc_mutex_lock(&mp->object_lock);
78 static inline void unlock(libvlc_media_player_t *mp)
80 vlc_mutex_unlock(&mp->object_lock);
84 * Release the associated input thread.
86 * Object lock is NOT held.
88 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
90 input_thread_t * p_input_thread;
92 if( !p_mi || !p_mi->p_input_thread )
95 p_input_thread = p_mi->p_input_thread;
97 var_DelCallback( p_input_thread, "can-seek",
98 input_seekable_changed, p_mi );
99 var_DelCallback( p_input_thread, "can-pause",
100 input_pausable_changed, p_mi );
101 var_DelCallback( p_input_thread, "intf-event",
102 input_event_changed, p_mi );
104 /* We owned this one */
105 input_Stop( p_input_thread, b_input_abort );
107 vlc_thread_join( p_input_thread );
109 assert( p_mi->p_input_resource == NULL );
110 assert( p_input_thread->b_dead );
111 /* Store the input resource for future use. */
112 p_mi->p_input_resource = input_DetachResource( p_input_thread );
114 vlc_object_release( p_input_thread );
116 p_mi->p_input_thread = NULL;
120 * Retrieve the input thread. Be sure to release the object
121 * once you are done with it. (libvlc Internal)
123 * Function will lock the object.
125 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
127 input_thread_t *p_input_thread;
132 p_input_thread = p_mi->p_input_thread;
134 vlc_object_hold( p_input_thread );
136 libvlc_printerr( "No active input" );
139 return p_input_thread;
143 * Set the internal state of the media_player. (media player Internal)
145 * Function will lock the media_player.
147 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
153 libvlc_media_t *media = p_mi->p_md;
155 libvlc_media_retain(media);
161 // Also set the state of the corresponding media
162 // This is strictly for convenience.
163 libvlc_media_set_state(media, state);
165 libvlc_media_release(media);
170 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
171 vlc_value_t oldval, vlc_value_t newval,
177 libvlc_media_player_t * p_mi = p_userdata;
178 libvlc_event_t event;
180 event.type = libvlc_MediaPlayerSeekableChanged;
181 event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
183 libvlc_event_send( p_mi->p_event_manager, &event );
188 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
189 vlc_value_t oldval, vlc_value_t newval,
195 libvlc_media_player_t * p_mi = p_userdata;
196 libvlc_event_t event;
198 event.type = libvlc_MediaPlayerPausableChanged;
199 event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
201 libvlc_event_send( p_mi->p_event_manager, &event );
206 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
207 vlc_value_t oldval, vlc_value_t newval,
211 input_thread_t * p_input = (input_thread_t *)p_this;
212 libvlc_media_player_t * p_mi = p_userdata;
213 libvlc_event_t event;
215 assert( !strcmp( psz_cmd, "intf-event" ) );
217 if( newval.i_int == INPUT_EVENT_STATE )
219 libvlc_state_t libvlc_state;
221 switch ( var_GetInteger( p_input, "state" ) )
224 libvlc_state = libvlc_NothingSpecial;
225 event.type = libvlc_MediaPlayerNothingSpecial;
228 libvlc_state = libvlc_Opening;
229 event.type = libvlc_MediaPlayerOpening;
232 libvlc_state = libvlc_Playing;
233 event.type = libvlc_MediaPlayerPlaying;
236 libvlc_state = libvlc_Paused;
237 event.type = libvlc_MediaPlayerPaused;
240 libvlc_state = libvlc_Ended;
241 event.type = libvlc_MediaPlayerEndReached;
244 libvlc_state = libvlc_Error;
245 event.type = libvlc_MediaPlayerEncounteredError;
252 set_state( p_mi, libvlc_state, false );
253 libvlc_event_send( p_mi->p_event_manager, &event );
255 else if( newval.i_int == INPUT_EVENT_ABORT )
257 libvlc_state_t libvlc_state = libvlc_Stopped;
258 event.type = libvlc_MediaPlayerStopped;
260 set_state( p_mi, libvlc_state, false );
261 libvlc_event_send( p_mi->p_event_manager, &event );
263 else if( newval.i_int == INPUT_EVENT_POSITION )
265 if( var_GetInteger( p_input, "state" ) != PLAYING_S )
266 return VLC_SUCCESS; /* Don't send the position while stopped */
269 event.type = libvlc_MediaPlayerPositionChanged;
270 event.u.media_player_position_changed.new_position =
271 var_GetFloat( p_input, "position" );
272 libvlc_event_send( p_mi->p_event_manager, &event );
275 event.type = libvlc_MediaPlayerTimeChanged;
276 event.u.media_player_time_changed.new_time =
277 from_mtime(var_GetTime( p_input, "time" ));
278 libvlc_event_send( p_mi->p_event_manager, &event );
280 else if( newval.i_int == INPUT_EVENT_LENGTH )
282 event.type = libvlc_MediaPlayerLengthChanged;
283 event.u.media_player_length_changed.new_length =
284 from_mtime(var_GetTime( p_input, "length" ));
285 libvlc_event_send( p_mi->p_event_manager, &event );
292 /**************************************************************************
293 * Snapshot Taken Event.
295 * FIXME: This snapshot API interface makes no sense in media_player.
296 *************************************************************************/
297 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
298 vlc_value_t oldval, vlc_value_t newval, void *p_data )
300 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
302 libvlc_media_player_t *mp = p_data;
303 libvlc_event_t event;
304 event.type = libvlc_MediaPlayerSnapshotTaken;
305 event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
306 libvlc_event_send(mp->p_event_manager, &event);
312 static void libvlc_media_player_destroy( libvlc_media_player_t * );
315 /**************************************************************************
316 * Create a Media Instance object.
319 * - All items created by _new start with a refcount set to 1.
320 * - Accessor _release decrease the refcount by 1, if after that
321 * operation the refcount is 0, the object is destroyed.
322 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
324 * Object locking strategy:
325 * - No lock held while in constructor.
326 * - When accessing any member variable this lock is held. (XXX who locks?)
327 * - When attempting to destroy the object the lock is also held.
328 **************************************************************************/
329 libvlc_media_player_t *
330 libvlc_media_player_new( libvlc_instance_t *instance )
332 libvlc_media_player_t * mp;
336 mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
337 if (unlikely(mp == NULL))
339 libvlc_printerr("Not enough memory");
342 vlc_object_attach (mp, mp->p_libvlc);
345 var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
347 var_Create (mp, "drawable-hwnd", VLC_VAR_ADDRESS);
350 var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
351 var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
354 var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
355 var_SetBool (mp, "keyboard-events", true);
356 var_Create (mp, "mouse-events", VLC_VAR_BOOL);
357 var_SetBool (mp, "mouse-events", true);
359 var_Create (mp, "fullscreen", VLC_VAR_BOOL);
360 var_Create (mp, "autoscale", VLC_VAR_BOOL);
361 var_SetBool (mp, "autoscale", true);
362 var_Create (mp, "scale", VLC_VAR_FLOAT);
363 var_SetFloat (mp, "scale", 1.);
364 var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
365 var_Create (mp, "crop", VLC_VAR_STRING);
366 var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
367 var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
370 var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
373 mp->state = libvlc_NothingSpecial;
374 mp->p_libvlc_instance = instance;
375 mp->p_input_thread = NULL;
376 mp->p_input_resource = NULL;
378 mp->p_event_manager = libvlc_event_manager_new(mp, instance);
379 if (unlikely(mp->p_event_manager == NULL))
381 vlc_object_release(mp);
384 vlc_mutex_init(&mp->object_lock);
386 register_event(mp, NothingSpecial);
387 register_event(mp, Opening);
388 register_event(mp, Buffering);
389 register_event(mp, Playing);
390 register_event(mp, Paused);
391 register_event(mp, Stopped);
392 register_event(mp, Forward);
393 register_event(mp, Backward);
394 register_event(mp, EndReached);
395 register_event(mp, EncounteredError);
396 register_event(mp, SeekableChanged);
398 register_event(mp, PositionChanged);
399 register_event(mp, TimeChanged);
400 register_event(mp, LengthChanged);
401 register_event(mp, TitleChanged);
402 register_event(mp, PausableChanged);
404 /* Snapshot initialization */
405 register_event(mp, SnapshotTaken);
407 register_event(mp, MediaChanged);
409 /* Attach a var callback to the global object to provide the glue between
410 * vout_thread that generates the event and media_player that re-emits it
411 * with its own event manager
413 * FIXME: It's unclear why we want to put this in public API, and why we
414 * want to expose it in such a limiting and ugly way.
416 var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
421 /**************************************************************************
422 * Create a Media Instance object with a media descriptor.
423 **************************************************************************/
424 libvlc_media_player_t *
425 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
427 libvlc_media_player_t * p_mi;
429 p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
433 libvlc_media_retain( p_md );
439 /**************************************************************************
440 * Destroy a Media Instance object (libvlc internal)
442 * Warning: No lock held here, but hey, this is internal. Caller must lock.
443 **************************************************************************/
444 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
448 /* Detach Callback from the main libvlc object */
449 var_DelCallback( p_mi->p_libvlc,
450 "snapshot-file", snapshot_was_taken, p_mi );
452 /* If the input thread hasn't been already deleted it means
453 * that the owners didn't stop the thread before releasing it. */
454 assert(!p_mi->p_input_thread);
456 /* Fallback for those who don't use NDEBUG */
457 if (p_mi->p_input_thread)
458 release_input_thread(p_mi, true);
460 if( p_mi->p_input_resource )
462 input_resource_Delete( p_mi->p_input_resource );
463 p_mi->p_input_resource = NULL;
466 libvlc_event_manager_release( p_mi->p_event_manager );
467 libvlc_media_release( p_mi->p_md );
468 vlc_mutex_destroy( &p_mi->object_lock );
469 vlc_object_release( p_mi );
472 /**************************************************************************
473 * Release a Media Instance object.
475 * Function does the locking.
476 **************************************************************************/
477 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
483 destroy = !--p_mi->i_refcount;
487 libvlc_media_player_destroy( p_mi );
490 /**************************************************************************
491 * Retain a Media Instance object.
493 * Caller must hold the lock.
494 **************************************************************************/
495 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
504 /**************************************************************************
505 * Set the Media descriptor associated with the instance.
507 * Enter without lock -- function will lock the object.
508 **************************************************************************/
509 void libvlc_media_player_set_media(
510 libvlc_media_player_t *p_mi,
511 libvlc_media_t *p_md )
515 /* FIXME I am not sure if it is a user request or on die(eof/error)
517 release_input_thread( p_mi,
518 p_mi->p_input_thread &&
519 !p_mi->p_input_thread->b_eof &&
520 !p_mi->p_input_thread->b_error );
522 set_state( p_mi, libvlc_NothingSpecial, true );
524 libvlc_media_release( p_mi->p_md );
530 return; /* It is ok to pass a NULL md */
533 libvlc_media_retain( p_md );
536 /* The policy here is to ignore that we were created using a different
537 * libvlc_instance, because we don't really care */
538 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
542 /* Send an event for the newly available media */
543 libvlc_event_t event;
544 event.type = libvlc_MediaPlayerMediaChanged;
545 event.u.media_player_media_changed.new_media = p_md;
546 libvlc_event_send( p_mi->p_event_manager, &event );
550 /**************************************************************************
551 * Get the Media descriptor associated with the instance.
552 **************************************************************************/
554 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
561 libvlc_media_retain( p_mi->p_md );
566 /**************************************************************************
567 * Get the event Manager.
568 **************************************************************************/
569 libvlc_event_manager_t *
570 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
572 return p_mi->p_event_manager;
575 /**************************************************************************
576 * Tell media player to start playing.
577 **************************************************************************/
578 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
580 input_thread_t * p_input_thread;
582 if( (p_input_thread = libvlc_get_input_thread( p_mi )) )
584 /* A thread already exists, send it a play message */
585 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
586 vlc_object_release( p_input_thread );
590 /* Ignore previous exception */
596 libvlc_printerr( "No associated media descriptor" );
600 p_mi->p_input_thread = input_Create( p_mi,
601 p_mi->p_md->p_input_item, NULL,
602 p_mi->p_input_resource );
603 if( !p_mi->p_input_thread )
606 libvlc_printerr( "Not enough memory" );
610 p_mi->p_input_resource = NULL;
611 p_input_thread = p_mi->p_input_thread;
613 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
614 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
615 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
617 if( input_Start( p_input_thread ) )
619 vlc_object_release( p_input_thread );
620 p_mi->p_input_thread = NULL;
627 /**************************************************************************
629 **************************************************************************/
630 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
632 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
633 if( !p_input_thread )
636 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
637 if( state == libvlc_Playing || state == libvlc_Buffering )
639 if( libvlc_media_player_can_pause( p_mi ) )
640 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
642 libvlc_media_player_stop( p_mi );
645 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
647 vlc_object_release( p_input_thread );
650 /**************************************************************************
651 * Tells whether the media player is currently playing.
653 * Enter with lock held.
654 **************************************************************************/
655 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
657 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
658 return (libvlc_Playing == state) || (libvlc_Buffering == state);
661 /**************************************************************************
663 **************************************************************************/
664 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
666 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
669 release_input_thread( p_mi, true ); /* This will stop the input thread */
672 /* Force to go to stopped state, in case we were in Ended, or Error
674 if( state != libvlc_Stopped )
676 set_state( p_mi, libvlc_Stopped, false );
678 /* Construct and send the event */
679 libvlc_event_t event;
680 event.type = libvlc_MediaPlayerStopped;
681 libvlc_event_send( p_mi->p_event_manager, &event );
685 /**************************************************************************
687 **************************************************************************/
688 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
691 assert (p_mi != NULL);
693 var_SetAddress (p_mi, "drawable-nsobject", drawable);
695 (void) p_mi; (void)drawable;
699 /**************************************************************************
701 **************************************************************************/
702 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
704 assert (p_mi != NULL);
706 return var_GetAddress (p_mi, "drawable-nsobject");
712 /**************************************************************************
714 **************************************************************************/
715 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
719 var_SetInteger (p_mi, "drawable-agl", drawable);
721 (void) p_mi; (void)drawable;
725 /**************************************************************************
727 **************************************************************************/
728 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
730 assert (p_mi != NULL);
732 return var_GetInteger (p_mi, "drawable-agl");
738 /**************************************************************************
740 **************************************************************************/
741 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
744 assert (p_mi != NULL);
745 var_SetInteger (p_mi, "drawable-xid", drawable);
748 /**************************************************************************
750 **************************************************************************/
751 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
753 return var_GetInteger (p_mi, "drawable-xid");
756 /**************************************************************************
758 **************************************************************************/
759 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
762 assert (p_mi != NULL);
764 var_SetAddress (p_mi, "drawable-hwnd", drawable);
766 (void) p_mi; (void) drawable;
770 /**************************************************************************
772 **************************************************************************/
773 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
775 assert (p_mi != NULL);
777 return var_GetAddress (p_mi, "drawable-hwnd");
783 /**************************************************************************
784 * Getters for stream information
785 **************************************************************************/
786 libvlc_time_t libvlc_media_player_get_length(
787 libvlc_media_player_t *p_mi )
789 input_thread_t *p_input_thread;
790 libvlc_time_t i_time;
792 p_input_thread = libvlc_get_input_thread ( p_mi );
793 if( !p_input_thread )
796 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
797 vlc_object_release( p_input_thread );
802 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
804 input_thread_t *p_input_thread;
805 libvlc_time_t i_time;
807 p_input_thread = libvlc_get_input_thread ( p_mi );
808 if( !p_input_thread )
811 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
812 vlc_object_release( p_input_thread );
816 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
817 libvlc_time_t i_time )
819 input_thread_t *p_input_thread;
821 p_input_thread = libvlc_get_input_thread ( p_mi );
822 if( !p_input_thread )
825 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
826 vlc_object_release( p_input_thread );
829 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
832 input_thread_t *p_input_thread;
834 p_input_thread = libvlc_get_input_thread ( p_mi );
835 if( !p_input_thread )
838 var_SetFloat( p_input_thread, "position", position );
839 vlc_object_release( p_input_thread );
842 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
844 input_thread_t *p_input_thread;
847 p_input_thread = libvlc_get_input_thread ( p_mi );
848 if( !p_input_thread )
851 f_position = var_GetFloat( p_input_thread, "position" );
852 vlc_object_release( p_input_thread );
857 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
860 input_thread_t *p_input_thread;
862 p_input_thread = libvlc_get_input_thread ( p_mi );
863 if( !p_input_thread )
866 var_SetInteger( p_input_thread, "chapter", chapter );
867 vlc_object_release( p_input_thread );
870 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
872 input_thread_t *p_input_thread;
875 p_input_thread = libvlc_get_input_thread ( p_mi );
876 if( !p_input_thread )
879 i_chapter = var_GetInteger( p_input_thread, "chapter" );
880 vlc_object_release( p_input_thread );
885 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
887 input_thread_t *p_input_thread;
890 p_input_thread = libvlc_get_input_thread ( p_mi );
891 if( !p_input_thread )
894 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
895 vlc_object_release( p_input_thread );
900 int libvlc_media_player_get_chapter_count_for_title(
901 libvlc_media_player_t *p_mi,
904 input_thread_t *p_input_thread;
907 p_input_thread = libvlc_get_input_thread ( p_mi );
908 if( !p_input_thread )
912 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
914 vlc_object_release( p_input_thread );
917 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
918 vlc_object_release( p_input_thread );
924 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
927 input_thread_t *p_input_thread;
929 p_input_thread = libvlc_get_input_thread ( p_mi );
930 if( !p_input_thread )
933 var_SetInteger( p_input_thread, "title", i_title );
934 vlc_object_release( p_input_thread );
937 libvlc_event_t event;
938 event.type = libvlc_MediaPlayerTitleChanged;
939 event.u.media_player_title_changed.new_title = i_title;
940 libvlc_event_send( p_mi->p_event_manager, &event );
943 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
945 input_thread_t *p_input_thread;
948 p_input_thread = libvlc_get_input_thread ( p_mi );
949 if( !p_input_thread )
952 i_title = var_GetInteger( p_input_thread, "title" );
953 vlc_object_release( p_input_thread );
958 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
960 input_thread_t *p_input_thread;
963 p_input_thread = libvlc_get_input_thread ( p_mi );
964 if( !p_input_thread )
967 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
968 vlc_object_release( p_input_thread );
973 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
975 input_thread_t *p_input_thread;
977 p_input_thread = libvlc_get_input_thread ( p_mi );
978 if( !p_input_thread )
981 int i_type = var_Type( p_input_thread, "next-chapter" );
982 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
983 "next-chapter":"next-title", true );
985 vlc_object_release( p_input_thread );
988 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
990 input_thread_t *p_input_thread;
992 p_input_thread = libvlc_get_input_thread ( p_mi );
993 if( !p_input_thread )
996 int i_type = var_Type( p_input_thread, "next-chapter" );
997 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
998 "prev-chapter":"prev-title", true );
1000 vlc_object_release( p_input_thread );
1003 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1005 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1008 if( p_input_thread )
1010 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1012 vlc_object_release( p_input_thread );
1017 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1020 input_thread_t *p_input_thread =
1021 libvlc_get_input_thread ( p_mi );
1022 if ( !p_input_thread )
1025 b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1026 vlc_object_release( p_input_thread );
1031 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1033 input_thread_t *p_input_thread;
1036 p_input_thread = libvlc_get_input_thread ( p_mi );
1037 if( !p_input_thread )
1040 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1041 if( (rate < 0.0) && !b_can_rewind )
1043 vlc_object_release( p_input_thread );
1044 libvlc_printerr( "Invalid playback rate" );
1048 var_SetFloat( p_input_thread, "rate", rate );
1049 vlc_object_release( p_input_thread );
1053 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1055 input_thread_t *p_input_thread;
1059 p_input_thread = libvlc_get_input_thread ( p_mi );
1060 if( !p_input_thread )
1061 return 0.0; /* rate < 0 indicates rewind */
1063 f_rate = var_GetFloat( p_input_thread, "rate" );
1064 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1065 /* FIXME: why are negative values forbidden ?? (rewinding) */
1066 if( f_rate < 0 && !b_can_rewind )
1068 vlc_object_release( p_input_thread );
1071 vlc_object_release( p_input_thread );
1076 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1079 libvlc_state_t state = p_mi->state;
1084 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1086 input_thread_t *p_input_thread;
1089 p_input_thread = libvlc_get_input_thread ( p_mi );
1090 if ( !p_input_thread )
1092 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1093 vlc_object_release( p_input_thread );
1098 /* internal function, used by audio, video */
1099 libvlc_track_description_t *
1100 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1101 const char *psz_variable )
1103 input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1104 libvlc_track_description_t *p_track_description = NULL,
1105 *p_actual, *p_previous;
1110 vlc_value_t val_list, text_list;
1111 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1114 if( val_list.p_list->i_count <= 0 )
1117 p_track_description = ( libvlc_track_description_t * )
1118 malloc( sizeof( libvlc_track_description_t ) );
1119 if ( !p_track_description )
1121 libvlc_printerr( "Not enough memory" );
1124 p_actual = p_track_description;
1126 for( int i = 0; i < val_list.p_list->i_count; i++ )
1130 p_actual = ( libvlc_track_description_t * )
1131 malloc( sizeof( libvlc_track_description_t ) );
1134 libvlc_track_description_release( p_track_description );
1135 libvlc_printerr( "Not enough memory" );
1139 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1140 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1141 p_actual->p_next = NULL;
1143 p_previous->p_next = p_actual;
1144 p_previous = p_actual;
1149 var_FreeList( &val_list, &text_list );
1150 vlc_object_release( p_input );
1152 return p_track_description;
1155 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1157 libvlc_track_description_t *p_actual, *p_before;
1162 free( p_actual->psz_name );
1163 p_before = p_actual;
1164 p_actual = p_before->p_next;
1169 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1171 input_thread_t *p_input_thread;
1174 p_input_thread = libvlc_get_input_thread ( p_mi );
1175 if ( !p_input_thread )
1177 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1178 vlc_object_release( p_input_thread );
1183 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1185 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1186 if( p_input_thread != NULL )
1188 var_TriggerCallback( p_input_thread, "frame-next" );
1189 vlc_object_release( p_input_thread );