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 )
504 /* FIXME I am not sure if it is a user request or on die(eof/error)
506 release_input_thread( p_mi,
507 p_mi->p_input_thread &&
508 !p_mi->p_input_thread->b_eof &&
509 !p_mi->p_input_thread->b_error );
511 set_state( p_mi, libvlc_NothingSpecial, true );
513 libvlc_media_release( p_mi->p_md );
519 return; /* It is ok to pass a NULL md */
522 libvlc_media_retain( p_md );
525 /* The policy here is to ignore that we were created using a different
526 * libvlc_instance, because we don't really care */
527 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
531 /* Send an event for the newly available media */
532 libvlc_event_t event;
533 event.type = libvlc_MediaPlayerMediaChanged;
534 event.u.media_player_media_changed.new_media = p_md;
535 libvlc_event_send( p_mi->p_event_manager, &event );
539 /**************************************************************************
540 * Get the Media descriptor associated with the instance.
541 **************************************************************************/
543 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
550 libvlc_media_retain( p_mi->p_md );
555 /**************************************************************************
556 * Get the event Manager.
557 **************************************************************************/
558 libvlc_event_manager_t *
559 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
561 return p_mi->p_event_manager;
564 /**************************************************************************
565 * Tell media player to start playing.
566 **************************************************************************/
567 void libvlc_media_player_play( libvlc_media_player_t *p_mi,
568 libvlc_exception_t *p_e )
570 input_thread_t * p_input_thread;
572 if( (p_input_thread = libvlc_get_input_thread( p_mi, p_e )) )
574 /* A thread already exists, send it a play message */
575 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
576 vlc_object_release( p_input_thread );
580 /* Ignore previous exception */
581 libvlc_exception_clear( p_e );
588 libvlc_exception_raise( p_e );
589 libvlc_printerr( "No associated media descriptor" );
593 p_mi->p_input_thread = input_Create( p_mi->p_libvlc_instance->p_libvlc_int,
594 p_mi->p_md->p_input_item, NULL, p_mi->p_input_resource );
596 if( !p_mi->p_input_thread )
602 p_mi->p_input_resource = NULL;
603 p_input_thread = p_mi->p_input_thread;
605 var_Create( p_input_thread, "drawable-agl", VLC_VAR_INTEGER );
606 if( p_mi->drawable.agl )
607 var_SetInteger( p_input_thread, "drawable-agl", p_mi->drawable.agl );
609 var_Create( p_input_thread, "drawable-xid", VLC_VAR_INTEGER );
610 if( p_mi->drawable.xid )
611 var_SetInteger( p_input_thread, "drawable-xid", p_mi->drawable.xid );
613 var_Create( p_input_thread, "drawable-hwnd", VLC_VAR_ADDRESS );
614 if( p_mi->drawable.hwnd != NULL )
615 var_SetAddress( p_input_thread, "drawable-hwnd", p_mi->drawable.hwnd );
617 var_Create( p_input_thread, "drawable-nsobject", VLC_VAR_ADDRESS );
618 if( p_mi->drawable.nsobject != NULL )
619 var_SetAddress( p_input_thread, "drawable-nsobject", p_mi->drawable.nsobject );
621 var_Create( p_input_thread, "keyboard-events", VLC_VAR_BOOL );
622 var_SetBool( p_input_thread, "keyboard-events", p_mi->keyboard_events );
623 var_Create( p_input_thread, "mouse-events", VLC_VAR_BOOL );
624 var_SetBool( p_input_thread, "mouse-events", p_mi->mouse_events );
626 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
627 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
628 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
630 if( input_Start( p_input_thread ) )
632 vlc_object_release( p_input_thread );
633 p_mi->p_input_thread = NULL;
639 /**************************************************************************
641 **************************************************************************/
642 void libvlc_media_player_pause( libvlc_media_player_t *p_mi,
643 libvlc_exception_t *p_e )
645 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi, p_e );
646 if( !p_input_thread )
649 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
650 if( state == libvlc_Playing || state == libvlc_Buffering )
652 if( libvlc_media_player_can_pause( p_mi, p_e ) )
653 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
655 libvlc_media_player_stop( p_mi );
658 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
660 vlc_object_release( p_input_thread );
663 /**************************************************************************
664 * Tells whether the media player is currently playing.
666 * Enter with lock held.
667 **************************************************************************/
668 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
670 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
671 return (libvlc_Playing == state) || (libvlc_Buffering == state);
674 /**************************************************************************
676 **************************************************************************/
677 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
679 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
682 release_input_thread( p_mi, true ); /* This will stop the input thread */
685 /* Force to go to stopped state, in case we were in Ended, or Error
687 if( state != libvlc_Stopped )
689 set_state( p_mi, libvlc_Stopped, false );
691 /* Construct and send the event */
692 libvlc_event_t event;
693 event.type = libvlc_MediaPlayerStopped;
694 libvlc_event_send( p_mi->p_event_manager, &event );
698 /**************************************************************************
700 **************************************************************************/
701 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
704 p_mi->drawable.nsobject = drawable;
707 /**************************************************************************
709 **************************************************************************/
710 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
712 return p_mi->drawable.nsobject;
715 /**************************************************************************
717 **************************************************************************/
718 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
721 p_mi->drawable.agl = drawable;
724 /**************************************************************************
726 **************************************************************************/
727 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
729 return p_mi->drawable.agl;
732 /**************************************************************************
734 **************************************************************************/
735 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
738 p_mi->drawable.xid = drawable;
741 /**************************************************************************
743 **************************************************************************/
744 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
746 return p_mi->drawable.xid;
749 /**************************************************************************
751 **************************************************************************/
752 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
755 p_mi->drawable.hwnd = drawable;
758 /**************************************************************************
760 **************************************************************************/
761 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
763 return p_mi->drawable.hwnd;
766 /**************************************************************************
767 * Getters for stream information
768 **************************************************************************/
769 libvlc_time_t libvlc_media_player_get_length(
770 libvlc_media_player_t *p_mi,
771 libvlc_exception_t *p_e )
773 input_thread_t *p_input_thread;
774 libvlc_time_t i_time;
776 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
777 if( !p_input_thread )
780 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
781 vlc_object_release( p_input_thread );
786 libvlc_time_t libvlc_media_player_get_time(
787 libvlc_media_player_t *p_mi,
788 libvlc_exception_t *p_e )
790 input_thread_t *p_input_thread;
791 libvlc_time_t i_time;
793 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
794 if( !p_input_thread )
797 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
798 vlc_object_release( p_input_thread );
802 void libvlc_media_player_set_time(
803 libvlc_media_player_t *p_mi,
804 libvlc_time_t i_time,
805 libvlc_exception_t *p_e )
807 input_thread_t *p_input_thread;
809 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
810 if( !p_input_thread )
813 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
814 vlc_object_release( p_input_thread );
817 void libvlc_media_player_set_position(
818 libvlc_media_player_t *p_mi,
820 libvlc_exception_t *p_e )
822 input_thread_t *p_input_thread;
824 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
825 if( !p_input_thread )
828 var_SetFloat( p_input_thread, "position", position );
829 vlc_object_release( p_input_thread );
832 float libvlc_media_player_get_position(
833 libvlc_media_player_t *p_mi,
834 libvlc_exception_t *p_e )
836 input_thread_t *p_input_thread;
839 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
840 if( !p_input_thread )
843 f_position = var_GetFloat( p_input_thread, "position" );
844 vlc_object_release( p_input_thread );
849 void libvlc_media_player_set_chapter(
850 libvlc_media_player_t *p_mi,
852 libvlc_exception_t *p_e )
854 input_thread_t *p_input_thread;
856 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
857 if( !p_input_thread )
860 var_SetInteger( p_input_thread, "chapter", chapter );
861 vlc_object_release( p_input_thread );
864 int libvlc_media_player_get_chapter(
865 libvlc_media_player_t *p_mi,
866 libvlc_exception_t *p_e )
868 input_thread_t *p_input_thread;
871 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
872 if( !p_input_thread )
875 i_chapter = var_GetInteger( p_input_thread, "chapter" );
876 vlc_object_release( p_input_thread );
881 int libvlc_media_player_get_chapter_count(
882 libvlc_media_player_t *p_mi,
883 libvlc_exception_t *p_e )
885 input_thread_t *p_input_thread;
888 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
889 if( !p_input_thread )
892 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
893 vlc_object_release( p_input_thread );
898 int libvlc_media_player_get_chapter_count_for_title(
899 libvlc_media_player_t *p_mi,
901 libvlc_exception_t *p_e )
903 input_thread_t *p_input_thread;
906 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
907 if( !p_input_thread )
911 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
913 vlc_object_release( p_input_thread );
916 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
917 vlc_object_release( p_input_thread );
923 void libvlc_media_player_set_title(
924 libvlc_media_player_t *p_mi,
926 libvlc_exception_t *p_e )
928 input_thread_t *p_input_thread;
930 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
931 if( !p_input_thread )
934 var_SetInteger( p_input_thread, "title", i_title );
935 vlc_object_release( p_input_thread );
938 libvlc_event_t event;
939 event.type = libvlc_MediaPlayerTitleChanged;
940 event.u.media_player_title_changed.new_title = i_title;
941 libvlc_event_send( p_mi->p_event_manager, &event );
944 int libvlc_media_player_get_title(
945 libvlc_media_player_t *p_mi,
946 libvlc_exception_t *p_e )
948 input_thread_t *p_input_thread;
951 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
952 if( !p_input_thread )
955 i_title = var_GetInteger( p_input_thread, "title" );
956 vlc_object_release( p_input_thread );
961 int libvlc_media_player_get_title_count(
962 libvlc_media_player_t *p_mi,
963 libvlc_exception_t *p_e )
965 input_thread_t *p_input_thread;
968 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
969 if( !p_input_thread )
972 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
973 vlc_object_release( p_input_thread );
978 void libvlc_media_player_next_chapter(
979 libvlc_media_player_t *p_mi,
980 libvlc_exception_t *p_e )
982 input_thread_t *p_input_thread;
984 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
985 if( !p_input_thread )
988 int i_type = var_Type( p_input_thread, "next-chapter" );
989 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
990 "next-chapter":"next-title", true );
992 vlc_object_release( p_input_thread );
995 void libvlc_media_player_previous_chapter(
996 libvlc_media_player_t *p_mi,
997 libvlc_exception_t *p_e )
999 input_thread_t *p_input_thread;
1001 p_input_thread = libvlc_get_input_thread ( p_mi, p_e);
1002 if( !p_input_thread )
1005 int i_type = var_Type( p_input_thread, "next-chapter" );
1006 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1007 "prev-chapter":"prev-title", true );
1009 vlc_object_release( p_input_thread );
1012 float libvlc_media_player_get_fps(
1013 libvlc_media_player_t *p_mi,
1014 libvlc_exception_t *p_e)
1016 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1019 if( p_input_thread )
1021 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1023 vlc_object_release( p_input_thread );
1028 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi,
1029 libvlc_exception_t *p_e)
1032 input_thread_t *p_input_thread =
1033 libvlc_get_input_thread ( p_mi, p_e);
1034 if ( !p_input_thread )
1037 b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1038 vlc_object_release( p_input_thread );
1043 void libvlc_media_player_set_rate(
1044 libvlc_media_player_t *p_mi,
1046 libvlc_exception_t *p_e )
1048 input_thread_t *p_input_thread;
1051 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1052 if( !p_input_thread )
1055 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1056 if( (rate < 0.0) && !b_can_rewind )
1058 vlc_object_release( p_input_thread );
1059 libvlc_exception_raise( p_e );
1060 libvlc_printerr( "Invalid playback rate" );
1064 var_SetFloat( p_input_thread, "rate", rate );
1065 vlc_object_release( p_input_thread );
1068 float libvlc_media_player_get_rate(
1069 libvlc_media_player_t *p_mi,
1070 libvlc_exception_t *p_e )
1072 input_thread_t *p_input_thread;
1076 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1077 if( !p_input_thread )
1078 return 0.0; /* rate < 0 indicates rewind */
1080 f_rate = var_GetFloat( p_input_thread, "rate" );
1081 b_can_rewind = var_GetBool( p_input_thread, "can-rewind" );
1082 /* FIXME: why are negative values forbidden ?? (rewinding) */
1083 if( f_rate < 0 && !b_can_rewind )
1085 vlc_object_release( p_input_thread );
1088 vlc_object_release( p_input_thread );
1093 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1096 libvlc_state_t state = p_mi->state;
1101 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi,
1102 libvlc_exception_t *p_e )
1104 input_thread_t *p_input_thread;
1107 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1108 if ( !p_input_thread )
1110 /* We do return the right value, no need to throw an exception */
1111 clear_if_needed(p_e);
1114 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1115 vlc_object_release( p_input_thread );
1120 /* internal function, used by audio, video */
1121 libvlc_track_description_t *
1122 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1123 const char *psz_variable,
1124 libvlc_exception_t *p_e )
1126 input_thread_t *p_input = libvlc_get_input_thread( p_mi, p_e );
1127 libvlc_track_description_t *p_track_description = NULL,
1128 *p_actual, *p_previous;
1133 vlc_value_t val_list, text_list;
1134 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1137 if( val_list.p_list->i_count <= 0 )
1140 p_track_description = ( libvlc_track_description_t * )
1141 malloc( sizeof( libvlc_track_description_t ) );
1142 if ( !p_track_description )
1144 libvlc_exception_raise( p_e );
1145 libvlc_printerr( "Not enough memory" );
1148 p_actual = p_track_description;
1150 for( int i = 0; i < val_list.p_list->i_count; i++ )
1154 p_actual = ( libvlc_track_description_t * )
1155 malloc( sizeof( libvlc_track_description_t ) );
1158 libvlc_track_description_release( p_track_description );
1159 libvlc_exception_raise( p_e );
1160 libvlc_printerr( "Not enough memory" );
1164 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1165 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1166 p_actual->p_next = NULL;
1168 p_previous->p_next = p_actual;
1169 p_previous = p_actual;
1174 var_FreeList( &val_list, &text_list );
1175 vlc_object_release( p_input );
1177 return p_track_description;
1180 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1182 libvlc_track_description_t *p_actual, *p_before;
1187 free( p_actual->psz_name );
1188 p_before = p_actual;
1189 p_actual = p_before->p_next;
1194 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi,
1195 libvlc_exception_t *p_e )
1197 input_thread_t *p_input_thread;
1200 p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1201 if ( !p_input_thread )
1203 /* We do return the right value, no need to throw an exception */
1204 clear_if_needed(p_e);
1207 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1208 vlc_object_release( p_input_thread );
1213 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi, libvlc_exception_t *p_e )
1215 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi, p_e );
1216 if( p_input_thread != NULL )
1218 var_TriggerCallback( p_input_thread, "frame-next" );
1219 vlc_object_release( p_input_thread );
1223 libvlc_exception_raise( p_e );
1224 libvlc_printerr( "No active input" );