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, NULL);
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 var_Destroy( p_input_thread, "drawable-hwnd" );
115 var_Destroy( p_input_thread, "drawable-xid" );
116 var_Destroy( p_input_thread, "drawable-agl" );
118 vlc_object_release( p_input_thread );
120 p_mi->p_input_thread = NULL;
124 * Retrieve the input thread. Be sure to release the object
125 * once you are done with it. (libvlc Internal)
127 * Function will lock the object.
129 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi,
130 libvlc_exception_t *p_e )
132 input_thread_t *p_input_thread;
134 if( !p_mi ) RAISENULL( "Media Instance is NULL" );
138 if( !p_mi->p_input_thread )
141 RAISENULL( "Input is NULL" );
144 p_input_thread = p_mi->p_input_thread;
145 vlc_object_hold( p_input_thread );
149 return p_input_thread;
153 * Set the internal state of the media_player. (media player Internal)
155 * Function will lock the media_player.
157 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
163 libvlc_media_t *media = p_mi->p_md;
165 libvlc_media_retain(media);
171 // Also set the state of the corresponding media
172 // This is strictly for convenience.
173 libvlc_media_set_state(media, state);
175 libvlc_media_release(media);
180 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
181 vlc_value_t oldval, vlc_value_t newval,
187 libvlc_media_player_t * p_mi = p_userdata;
188 libvlc_event_t event;
190 event.type = libvlc_MediaPlayerSeekableChanged;
191 event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
193 libvlc_event_send( p_mi->p_event_manager, &event );
198 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
199 vlc_value_t oldval, vlc_value_t newval,
205 libvlc_media_player_t * p_mi = p_userdata;
206 libvlc_event_t event;
208 event.type = libvlc_MediaPlayerPausableChanged;
209 event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
211 libvlc_event_send( p_mi->p_event_manager, &event );
216 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
217 vlc_value_t oldval, vlc_value_t newval,
221 input_thread_t * p_input = (input_thread_t *)p_this;
222 libvlc_media_player_t * p_mi = p_userdata;
223 libvlc_event_t event;
225 assert( !strcmp( psz_cmd, "intf-event" ) );
227 if( newval.i_int == INPUT_EVENT_STATE )
229 libvlc_state_t libvlc_state;
231 switch ( var_GetInteger( p_input, "state" ) )
234 libvlc_state = libvlc_NothingSpecial;
235 event.type = libvlc_MediaPlayerNothingSpecial;
238 libvlc_state = libvlc_Opening;
239 event.type = libvlc_MediaPlayerOpening;
242 libvlc_state = libvlc_Playing;
243 event.type = libvlc_MediaPlayerPlaying;
246 libvlc_state = libvlc_Paused;
247 event.type = libvlc_MediaPlayerPaused;
250 libvlc_state = libvlc_Ended;
251 event.type = libvlc_MediaPlayerEndReached;
254 libvlc_state = libvlc_Error;
255 event.type = libvlc_MediaPlayerEncounteredError;
262 set_state( p_mi, libvlc_state, false );
263 libvlc_event_send( p_mi->p_event_manager, &event );
265 else if( newval.i_int == INPUT_EVENT_ABORT )
267 libvlc_state_t libvlc_state = libvlc_Stopped;
268 event.type = libvlc_MediaPlayerStopped;
270 set_state( p_mi, libvlc_state, false );
271 libvlc_event_send( p_mi->p_event_manager, &event );
273 else if( newval.i_int == INPUT_EVENT_POSITION )
275 if( var_GetInteger( p_input, "state" ) != PLAYING_S )
276 return VLC_SUCCESS; /* Don't send the position while stopped */
279 event.type = libvlc_MediaPlayerPositionChanged;
280 event.u.media_player_position_changed.new_position =
281 var_GetFloat( p_input, "position" );
282 libvlc_event_send( p_mi->p_event_manager, &event );
285 event.type = libvlc_MediaPlayerTimeChanged;
286 event.u.media_player_time_changed.new_time =
287 from_mtime(var_GetTime( p_input, "time" ));
288 libvlc_event_send( p_mi->p_event_manager, &event );
290 else if( newval.i_int == INPUT_EVENT_LENGTH )
292 event.type = libvlc_MediaPlayerLengthChanged;
293 event.u.media_player_length_changed.new_length =
294 from_mtime(var_GetTime( p_input, "length" ));
295 libvlc_event_send( p_mi->p_event_manager, &event );
302 /**************************************************************************
303 * Snapshot Taken Event.
305 * FIXME: This snapshot API interface makes no sense in media_player.
306 *************************************************************************/
307 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
308 vlc_value_t oldval, vlc_value_t newval, void *p_data )
310 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
312 libvlc_media_player_t *mp = p_data;
313 libvlc_event_t event;
314 event.type = libvlc_MediaPlayerSnapshotTaken;
315 event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
316 libvlc_event_send(mp->p_event_manager, &event);
322 static void libvlc_media_player_destroy( libvlc_media_player_t * );
325 /**************************************************************************
326 * Create a Media Instance object.
329 * - All items created by _new start with a refcount set to 1.
330 * - Accessor _release decrease the refcount by 1, if after that
331 * operation the refcount is 0, the object is destroyed.
332 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
334 * Object locking strategy:
335 * - No lock held while in constructor.
336 * - When accessing any member variable this lock is held. (XXX who locks?)
337 * - When attempting to destroy the object the lock is also held.
338 **************************************************************************/
339 libvlc_media_player_t *
340 libvlc_media_player_new( libvlc_instance_t *instance, libvlc_exception_t *e )
342 libvlc_media_player_t * mp;
346 mp = malloc(sizeof(libvlc_media_player_t));
349 libvlc_exception_raise(e);
350 libvlc_printerr("Not enough memory");
354 mp->drawable.agl = 0;
355 mp->drawable.xid = 0;
356 mp->drawable.hwnd = NULL;
357 mp->drawable.nsobject = NULL;
358 mp->keyboard_events = mp->mouse_events = 1;
359 mp->state = libvlc_NothingSpecial;
360 mp->p_libvlc_instance = instance;
361 mp->p_input_thread = NULL;
362 mp->p_input_resource = NULL;
364 vlc_mutex_init(&mp->object_lock);
365 mp->p_event_manager = libvlc_event_manager_new(mp, instance, e);
366 if (libvlc_exception_raised(e))
368 vlc_mutex_destroy(&mp->object_lock);
373 register_event(mp, NothingSpecial);
374 register_event(mp, Opening);
375 register_event(mp, Buffering);
376 register_event(mp, Playing);
377 register_event(mp, Paused);
378 register_event(mp, Stopped);
379 register_event(mp, Forward);
380 register_event(mp, Backward);
381 register_event(mp, EndReached);
382 register_event(mp, EncounteredError);
383 register_event(mp, SeekableChanged);
385 register_event(mp, PositionChanged);
386 register_event(mp, TimeChanged);
387 register_event(mp, LengthChanged);
388 register_event(mp, TitleChanged);
389 register_event(mp, PausableChanged);
391 /* Snapshot initialization */
392 register_event(mp, SnapshotTaken);
394 register_event(mp, MediaChanged);
396 /* Attach a var callback to the global object to provide the glue between
397 * vout_thread that generates the event and media_player that re-emits it
398 * with its own event manager
400 * FIXME: It's unclear why we want to put this in public API, and why we
401 * want to expose it in such a limiting and ugly way.
403 var_AddCallback(instance->p_libvlc_int, "snapshot-file", snapshot_was_taken, mp);
408 /**************************************************************************
409 * Create a Media Instance object with a media descriptor.
410 **************************************************************************/
411 libvlc_media_player_t *
412 libvlc_media_player_new_from_media(
413 libvlc_media_t * p_md,
414 libvlc_exception_t *p_e )
416 libvlc_media_player_t * p_mi;
418 p_mi = libvlc_media_player_new( p_md->p_libvlc_instance, p_e );
422 libvlc_media_retain( p_md );
428 /**************************************************************************
429 * Destroy a Media Instance object (libvlc internal)
431 * Warning: No lock held here, but hey, this is internal. Caller must lock.
432 **************************************************************************/
433 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
437 /* Detach Callback from the main libvlc object */
438 var_DelCallback( p_mi->p_libvlc_instance->p_libvlc_int,
439 "snapshot-file", snapshot_was_taken, p_mi );
441 /* If the input thread hasn't been already deleted it means
442 * that the owners didn't stop the thread before releasing it. */
443 assert(!p_mi->p_input_thread);
445 /* Fallback for those who don't use NDEBUG */
446 if (p_mi->p_input_thread)
447 release_input_thread(p_mi, true);
449 if( p_mi->p_input_resource )
451 input_resource_Delete( p_mi->p_input_resource );
452 p_mi->p_input_resource = NULL;
455 libvlc_event_manager_release( p_mi->p_event_manager );
456 libvlc_media_release( p_mi->p_md );
457 vlc_mutex_destroy( &p_mi->object_lock );
461 /**************************************************************************
462 * Release a Media Instance object.
464 * Function does the locking.
465 **************************************************************************/
466 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
472 destroy = !--p_mi->i_refcount;
476 libvlc_media_player_destroy( p_mi );
479 /**************************************************************************
480 * Retain a Media Instance object.
482 * Caller must hold the lock.
483 **************************************************************************/
484 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
493 /**************************************************************************
494 * Set the Media descriptor associated with the instance.
496 * Enter without lock -- function will lock the object.
497 **************************************************************************/
498 void libvlc_media_player_set_media(
499 libvlc_media_player_t *p_mi,
500 libvlc_media_t *p_md,
501 libvlc_exception_t *p_e )
507 /* FIXME I am not sure if it is a user request or on die(eof/error)
509 release_input_thread( p_mi,
510 p_mi->p_input_thread &&
511 !p_mi->p_input_thread->b_eof &&
512 !p_mi->p_input_thread->b_error );
514 set_state( p_mi, libvlc_NothingSpecial, true );
516 libvlc_media_release( p_mi->p_md );
522 return; /* It is ok to pass a NULL md */
525 libvlc_media_retain( p_md );
528 /* The policy here is to ignore that we were created using a different
529 * libvlc_instance, because we don't really care */
530 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
534 /* Send an event for the newly available media */
535 libvlc_event_t event;
536 event.type = libvlc_MediaPlayerMediaChanged;
537 event.u.media_player_media_changed.new_media = p_md;
538 libvlc_event_send( p_mi->p_event_manager, &event );
542 /**************************************************************************
543 * Get the Media descriptor associated with the instance.
544 **************************************************************************/
546 libvlc_media_player_get_media(
547 libvlc_media_player_t *p_mi,
548 libvlc_exception_t *p_e )
556 libvlc_media_retain( p_mi->p_md );
561 /**************************************************************************
562 * Get the event Manager.
563 **************************************************************************/
564 libvlc_event_manager_t *
565 libvlc_media_player_event_manager(
566 libvlc_media_player_t *p_mi,
567 libvlc_exception_t *p_e )
571 return p_mi->p_event_manager;
574 /**************************************************************************
575 * Tell media player to start playing.
576 **************************************************************************/
577 void libvlc_media_player_play( libvlc_media_player_t *p_mi,
578 libvlc_exception_t *p_e )
580 input_thread_t * p_input_thread;
582 if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
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 */
591 libvlc_exception_clear( p_e );
598 libvlc_exception_raise( p_e );
599 libvlc_printerr( "No associated media descriptor" );
603 p_mi->p_input_thread = input_Create( p_mi->p_libvlc_instance->p_libvlc_int,
604 p_mi->p_md->p_input_item, NULL, p_mi->p_input_resource );
606 if( !p_mi->p_input_thread )
612 p_mi->p_input_resource = NULL;
613 p_input_thread = p_mi->p_input_thread;
615 var_Create( p_input_thread, "drawable-agl", VLC_VAR_INTEGER );
616 if( p_mi->drawable.agl )
617 var_SetInteger( p_input_thread, "drawable-agl", p_mi->drawable.agl );
619 var_Create( p_input_thread, "drawable-xid", VLC_VAR_INTEGER );
620 if( p_mi->drawable.xid )
621 var_SetInteger( p_input_thread, "drawable-xid", p_mi->drawable.xid );
623 var_Create( p_input_thread, "drawable-hwnd", VLC_VAR_ADDRESS );
624 if( p_mi->drawable.hwnd != NULL )
625 var_SetAddress( p_input_thread, "drawable-hwnd", p_mi->drawable.hwnd );
627 var_Create( p_input_thread, "drawable-nsobject", VLC_VAR_ADDRESS );
628 if( p_mi->drawable.nsobject != NULL )
629 var_SetAddress( p_input_thread, "drawable-nsobject", p_mi->drawable.nsobject );
631 var_Create( p_input_thread, "keyboard-events", VLC_VAR_BOOL );
632 var_SetBool( p_input_thread, "keyboard-events", p_mi->keyboard_events );
633 var_Create( p_input_thread, "mouse-events", VLC_VAR_BOOL );
634 var_SetBool( p_input_thread, "mouse-events", p_mi->mouse_events );
636 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
637 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
638 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
640 if( input_Start( p_input_thread ) )
642 vlc_object_release( p_input_thread );
643 p_mi->p_input_thread = NULL;
649 /**************************************************************************
651 **************************************************************************/
652 void libvlc_media_player_pause( libvlc_media_player_t *p_mi,
653 libvlc_exception_t *p_e )
655 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
656 if( !p_input_thread )
659 libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
660 if( state == libvlc_Playing || state == libvlc_Buffering )
662 if( libvlc_media_player_can_pause( p_mi, p_e ) )
663 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
665 libvlc_media_player_stop( p_mi, p_e );
668 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
670 vlc_object_release( p_input_thread );
673 /**************************************************************************
674 * Tells whether the media player is currently playing.
676 * Enter with lock held.
677 **************************************************************************/
678 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi,
679 libvlc_exception_t *p_e )
681 libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
682 return (libvlc_Playing == state) || (libvlc_Buffering == state);
685 /**************************************************************************
687 **************************************************************************/
688 void libvlc_media_player_stop( libvlc_media_player_t *p_mi,
689 libvlc_exception_t *p_e )
691 libvlc_state_t state = libvlc_media_player_get_state( p_mi, p_e );
694 release_input_thread( p_mi, true ); /* This will stop the input thread */
697 /* Force to go to stopped state, in case we were in Ended, or Error
699 if( state != libvlc_Stopped )
701 set_state( p_mi, libvlc_Stopped, false );
703 /* Construct and send the event */
704 libvlc_event_t event;
705 event.type = libvlc_MediaPlayerStopped;
706 libvlc_event_send( p_mi->p_event_manager, &event );
710 /**************************************************************************
712 **************************************************************************/
713 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
715 libvlc_exception_t *p_e )
718 p_mi->drawable.nsobject = drawable;
721 /**************************************************************************
723 **************************************************************************/
724 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
726 return p_mi->drawable.nsobject;
729 /**************************************************************************
731 **************************************************************************/
732 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
734 libvlc_exception_t *p_e )
737 p_mi->drawable.agl = drawable;
740 /**************************************************************************
742 **************************************************************************/
743 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
745 return p_mi->drawable.agl;
748 /**************************************************************************
750 **************************************************************************/
751 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
753 libvlc_exception_t *p_e )
756 p_mi->drawable.xid = drawable;
759 /**************************************************************************
761 **************************************************************************/
762 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
764 return p_mi->drawable.xid;
767 /**************************************************************************
769 **************************************************************************/
770 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
772 libvlc_exception_t *p_e )
775 p_mi->drawable.hwnd = drawable;
778 /**************************************************************************
780 **************************************************************************/
781 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
783 return p_mi->drawable.hwnd;
786 /**************************************************************************
787 * Getters for stream information
788 **************************************************************************/
789 libvlc_time_t libvlc_media_player_get_length(
790 libvlc_media_player_t *p_mi,
791 libvlc_exception_t *p_e )
793 input_thread_t *p_input_thread;
794 libvlc_time_t i_time;
796 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
797 if( !p_input_thread )
800 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
801 vlc_object_release( p_input_thread );
806 libvlc_time_t libvlc_media_player_get_time(
807 libvlc_media_player_t *p_mi,
808 libvlc_exception_t *p_e )
810 input_thread_t *p_input_thread;
811 libvlc_time_t i_time;
813 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
814 if( !p_input_thread )
817 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
818 vlc_object_release( p_input_thread );
822 void libvlc_media_player_set_time(
823 libvlc_media_player_t *p_mi,
824 libvlc_time_t i_time,
825 libvlc_exception_t *p_e )
827 input_thread_t *p_input_thread;
829 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
830 if( !p_input_thread )
833 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
834 vlc_object_release( p_input_thread );
837 void libvlc_media_player_set_position(
838 libvlc_media_player_t *p_mi,
840 libvlc_exception_t *p_e )
842 input_thread_t *p_input_thread;
844 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
845 if( !p_input_thread )
848 var_SetFloat( p_input_thread, "position", position );
849 vlc_object_release( p_input_thread );
852 float libvlc_media_player_get_position(
853 libvlc_media_player_t *p_mi,
854 libvlc_exception_t *p_e )
856 input_thread_t *p_input_thread;
859 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
860 if( !p_input_thread )
863 f_position = var_GetFloat( p_input_thread, "position" );
864 vlc_object_release( p_input_thread );
869 void libvlc_media_player_set_chapter(
870 libvlc_media_player_t *p_mi,
872 libvlc_exception_t *p_e )
874 input_thread_t *p_input_thread;
876 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
877 if( !p_input_thread )
880 var_SetInteger( p_input_thread, "chapter", chapter );
881 vlc_object_release( p_input_thread );
884 int libvlc_media_player_get_chapter(
885 libvlc_media_player_t *p_mi,
886 libvlc_exception_t *p_e )
888 input_thread_t *p_input_thread;
891 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
892 if( !p_input_thread )
895 i_chapter = var_GetInteger( p_input_thread, "chapter" );
896 vlc_object_release( p_input_thread );
901 int libvlc_media_player_get_chapter_count(
902 libvlc_media_player_t *p_mi,
903 libvlc_exception_t *p_e )
905 input_thread_t *p_input_thread;
908 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
909 if( !p_input_thread )
912 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
913 vlc_object_release( p_input_thread );
918 int libvlc_media_player_get_chapter_count_for_title(
919 libvlc_media_player_t *p_mi,
921 libvlc_exception_t *p_e )
923 input_thread_t *p_input_thread;
926 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
927 if( !p_input_thread )
931 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
933 vlc_object_release( p_input_thread );
936 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
937 vlc_object_release( p_input_thread );
943 void libvlc_media_player_set_title(
944 libvlc_media_player_t *p_mi,
946 libvlc_exception_t *p_e )
948 input_thread_t *p_input_thread;
950 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
951 if( !p_input_thread )
954 var_SetInteger( p_input_thread, "title", i_title );
955 vlc_object_release( p_input_thread );
958 libvlc_event_t event;
959 event.type = libvlc_MediaPlayerTitleChanged;
960 event.u.media_player_title_changed.new_title = i_title;
961 libvlc_event_send( p_mi->p_event_manager, &event );
964 int libvlc_media_player_get_title(
965 libvlc_media_player_t *p_mi,
966 libvlc_exception_t *p_e )
968 input_thread_t *p_input_thread;
971 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
972 if( !p_input_thread )
975 i_title = var_GetInteger( p_input_thread, "title" );
976 vlc_object_release( p_input_thread );
981 int libvlc_media_player_get_title_count(
982 libvlc_media_player_t *p_mi,
983 libvlc_exception_t *p_e )
985 input_thread_t *p_input_thread;
988 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
989 if( !p_input_thread )
992 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
993 vlc_object_release( p_input_thread );
998 void libvlc_media_player_next_chapter(
999 libvlc_media_player_t *p_mi,
1000 libvlc_exception_t *p_e )
1002 input_thread_t *p_input_thread;
1004 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
1005 if( !p_input_thread )
1008 int i_type = var_Type( p_input_thread, "next-chapter" );
1009 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1010 "next-chapter":"next-title", true );
1012 vlc_object_release( p_input_thread );
1015 void libvlc_media_player_previous_chapter(
1016 libvlc_media_player_t *p_mi,
1017 libvlc_exception_t *p_e )
1019 input_thread_t *p_input_thread;
1021 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
1022 if( !p_input_thread )
1025 int i_type = var_Type( p_input_thread, "next-chapter" );
1026 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1027 "prev-chapter":"prev-title", true );
1029 vlc_object_release( p_input_thread );
1032 float libvlc_media_player_get_fps(
1033 libvlc_media_player_t *p_mi,
1034 libvlc_exception_t *p_e)
1036 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1039 if( p_input_thread )
1041 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1043 vlc_object_release( p_input_thread );
1048 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi,
1049 libvlc_exception_t *p_e)
1052 input_thread_t *p_input_thread =
1053 libvlc_get_input_thread ( p_mi, p_e);
1054 if ( !p_input_thread )
1057 b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1058 vlc_object_release( p_input_thread );
1063 void libvlc_media_player_set_rate(
1064 libvlc_media_player_t *p_mi,
1066 libvlc_exception_t *p_e )
1068 input_thread_t *p_input_thread;
1071 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1072 if( !p_input_thread )
1075 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1076 if( (rate < 0.0) && !b_can_rewind )
1078 vlc_object_release( p_input_thread );
1079 libvlc_exception_raise( p_e );
1080 libvlc_printerr( "Invalid playback rate" );
1084 var_SetFloat( p_input_thread, "rate", rate );
1085 vlc_object_release( p_input_thread );
1088 float libvlc_media_player_get_rate(
1089 libvlc_media_player_t *p_mi,
1090 libvlc_exception_t *p_e )
1092 input_thread_t *p_input_thread;
1096 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1097 if( !p_input_thread )
1098 return 0.0; /* rate < 0 indicates rewind */
1100 f_rate = var_GetFloat( p_input_thread, "rate" );
1101 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1102 /* FIXME: why are negative values forbidden ?? (rewinding) */
1103 if( f_rate < 0 && !b_can_rewind )
1105 vlc_object_release( p_input_thread );
1108 vlc_object_release( p_input_thread );
1113 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi, libvlc_exception_t *p_e )
1117 libvlc_state_t state = p_mi->state;
1122 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi,
1123 libvlc_exception_t *p_e )
1125 input_thread_t *p_input_thread;
1128 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1129 if ( !p_input_thread )
1131 /* We do return the right value, no need to throw an exception */
1132 clear_if_needed(p_e);
1135 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1136 vlc_object_release( p_input_thread );
1141 /* internal function, used by audio, video */
1142 libvlc_track_description_t *
1143 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1144 const char *psz_variable,
1145 libvlc_exception_t *p_e )
1147 input_thread_t *p_input = libvlc_get_input_thread( p_mi, p_e );
1148 libvlc_track_description_t *p_track_description = NULL,
1149 *p_actual, *p_previous;
1154 vlc_value_t val_list, text_list;
1155 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1158 if( val_list.p_list->i_count <= 0 )
1161 p_track_description = ( libvlc_track_description_t * )
1162 malloc( sizeof( libvlc_track_description_t ) );
1163 if ( !p_track_description )
1165 libvlc_exception_raise( p_e );
1166 libvlc_printerr( "Not enough memory" );
1169 p_actual = p_track_description;
1171 for( int i = 0; i < val_list.p_list->i_count; i++ )
1175 p_actual = ( libvlc_track_description_t * )
1176 malloc( sizeof( libvlc_track_description_t ) );
1179 libvlc_track_description_release( p_track_description );
1180 libvlc_exception_raise( p_e );
1181 libvlc_printerr( "Not enough memory" );
1185 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1186 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1187 p_actual->p_next = NULL;
1189 p_previous->p_next = p_actual;
1190 p_previous = p_actual;
1195 var_FreeList( &val_list, &text_list );
1196 vlc_object_release( p_input );
1198 return p_track_description;
1201 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1203 libvlc_track_description_t *p_actual, *p_before;
1208 free( p_actual->psz_name );
1209 p_before = p_actual;
1210 p_actual = p_before->p_next;
1215 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi,
1216 libvlc_exception_t *p_e )
1218 input_thread_t *p_input_thread;
1221 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1222 if ( !p_input_thread )
1224 /* We do return the right value, no need to throw an exception */
1225 clear_if_needed(p_e);
1228 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1229 vlc_object_release( p_input_thread );
1234 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi, libvlc_exception_t *p_e )
1236 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1237 if( p_input_thread != NULL )
1239 var_TriggerCallback( p_input_thread, "frame-next" );
1240 vlc_object_release( p_input_thread );
1244 libvlc_exception_raise( p_e );
1245 libvlc_printerr( "No active input" );