1 /*****************************************************************************
2 * media_player.c: Libvlc API Media Instance management functions
3 *****************************************************************************
4 * Copyright (C) 2005-2009 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
30 #include <vlc/libvlc.h>
31 #include <vlc/libvlc_media.h>
32 #include <vlc/libvlc_events.h>
34 #include <vlc_demux.h>
35 #include <vlc_input.h>
40 #include "libvlc_internal.h"
41 #include "media_internal.h" // libvlc_media_set_state()
42 #include "media_player_internal.h"
45 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
46 vlc_value_t oldval, vlc_value_t newval,
49 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
50 vlc_value_t oldval, vlc_value_t newval,
53 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
54 vlc_value_t oldval, vlc_value_t newval,
58 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
59 vlc_value_t oldval, vlc_value_t newval, void *p_data );
61 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
67 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
68 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
70 libvlc_event_manager_register_event_type(mp->p_event_manager, type);
74 * The input lock protects the input and input resource pointer.
75 * It MUST NOT be used from callbacks.
77 * The object lock protects the reset, namely the media and the player state.
78 * It can, and usually needs to be taken from callbacks.
79 * The object lock can be acquired under the input lock... and consequently
80 * the opposite order is STRICTLY PROHIBITED.
82 static inline void lock(libvlc_media_player_t *mp)
84 vlc_mutex_lock(&mp->object_lock);
87 static inline void unlock(libvlc_media_player_t *mp)
89 vlc_mutex_unlock(&mp->object_lock);
92 static inline void lock_input(libvlc_media_player_t *mp)
94 vlc_mutex_lock(&mp->input.lock);
97 static inline void unlock_input(libvlc_media_player_t *mp)
99 vlc_mutex_unlock(&mp->input.lock);
103 * Release the associated input thread.
105 * Object lock is NOT held.
106 * Input lock is held or instance is being destroyed.
108 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
112 input_thread_t *p_input_thread = p_mi->input.p_thread;
113 if( !p_input_thread )
116 var_DelCallback( p_input_thread, "can-seek",
117 input_seekable_changed, p_mi );
118 var_DelCallback( p_input_thread, "can-pause",
119 input_pausable_changed, p_mi );
120 var_DelCallback( p_input_thread, "intf-event",
121 input_event_changed, p_mi );
123 /* We owned this one */
124 input_Stop( p_input_thread, b_input_abort );
126 vlc_thread_join( p_input_thread );
128 assert( p_input_thread->b_dead );
130 p_mi->input.p_thread = NULL;
131 vlc_object_release( p_input_thread );
135 * Retrieve the input thread. Be sure to release the object
136 * once you are done with it. (libvlc Internal)
138 input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
140 input_thread_t *p_input_thread;
145 p_input_thread = p_mi->input.p_thread;
147 vlc_object_hold( p_input_thread );
149 libvlc_printerr( "No active input" );
152 return p_input_thread;
156 * Set the internal state of the media_player. (media player Internal)
158 * Function will lock the media_player.
160 static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
167 libvlc_media_t *media = p_mi->p_md;
169 libvlc_media_retain(media);
176 // Also set the state of the corresponding media
177 // This is strictly for convenience.
178 libvlc_media_set_state(media, state);
180 libvlc_media_release(media);
185 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
186 vlc_value_t oldval, vlc_value_t newval,
192 libvlc_media_player_t * p_mi = p_userdata;
193 libvlc_event_t event;
195 event.type = libvlc_MediaPlayerSeekableChanged;
196 event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
198 libvlc_event_send( p_mi->p_event_manager, &event );
203 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
204 vlc_value_t oldval, vlc_value_t newval,
210 libvlc_media_player_t * p_mi = p_userdata;
211 libvlc_event_t event;
213 event.type = libvlc_MediaPlayerPausableChanged;
214 event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
216 libvlc_event_send( p_mi->p_event_manager, &event );
221 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
222 vlc_value_t oldval, vlc_value_t newval,
226 input_thread_t * p_input = (input_thread_t *)p_this;
227 libvlc_media_player_t * p_mi = p_userdata;
228 libvlc_event_t event;
230 assert( !strcmp( psz_cmd, "intf-event" ) );
232 if( newval.i_int == INPUT_EVENT_STATE )
234 libvlc_state_t libvlc_state;
236 switch ( var_GetInteger( p_input, "state" ) )
239 libvlc_state = libvlc_NothingSpecial;
240 event.type = libvlc_MediaPlayerNothingSpecial;
243 libvlc_state = libvlc_Opening;
244 event.type = libvlc_MediaPlayerOpening;
247 libvlc_state = libvlc_Playing;
248 event.type = libvlc_MediaPlayerPlaying;
251 libvlc_state = libvlc_Paused;
252 event.type = libvlc_MediaPlayerPaused;
255 libvlc_state = libvlc_Ended;
256 event.type = libvlc_MediaPlayerEndReached;
259 libvlc_state = libvlc_Error;
260 event.type = libvlc_MediaPlayerEncounteredError;
267 set_state( p_mi, libvlc_state, false );
268 libvlc_event_send( p_mi->p_event_manager, &event );
270 else if( newval.i_int == INPUT_EVENT_ABORT )
272 libvlc_state_t libvlc_state = libvlc_Stopped;
273 event.type = libvlc_MediaPlayerStopped;
275 set_state( p_mi, libvlc_state, false );
276 libvlc_event_send( p_mi->p_event_manager, &event );
278 else if( newval.i_int == INPUT_EVENT_POSITION )
280 if( var_GetInteger( p_input, "state" ) != PLAYING_S )
281 return VLC_SUCCESS; /* Don't send the position while stopped */
284 event.type = libvlc_MediaPlayerPositionChanged;
285 event.u.media_player_position_changed.new_position =
286 var_GetFloat( p_input, "position" );
287 libvlc_event_send( p_mi->p_event_manager, &event );
290 event.type = libvlc_MediaPlayerTimeChanged;
291 event.u.media_player_time_changed.new_time =
292 from_mtime(var_GetTime( p_input, "time" ));
293 libvlc_event_send( p_mi->p_event_manager, &event );
295 else if( newval.i_int == INPUT_EVENT_LENGTH )
297 event.type = libvlc_MediaPlayerLengthChanged;
298 event.u.media_player_length_changed.new_length =
299 from_mtime(var_GetTime( p_input, "length" ));
300 libvlc_event_send( p_mi->p_event_manager, &event );
307 /**************************************************************************
308 * Snapshot Taken Event.
310 * FIXME: This snapshot API interface makes no sense in media_player.
311 *************************************************************************/
312 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
313 vlc_value_t oldval, vlc_value_t newval, void *p_data )
315 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
317 libvlc_media_player_t *mp = p_data;
318 libvlc_event_t event;
319 event.type = libvlc_MediaPlayerSnapshotTaken;
320 event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
321 libvlc_event_send(mp->p_event_manager, &event);
326 static input_thread_t *find_input (vlc_object_t *obj)
328 libvlc_media_player_t *mp = (libvlc_media_player_t *)obj;
330 return libvlc_get_input_thread (mp);
334 static void libvlc_media_player_destroy( libvlc_media_player_t * );
337 /**************************************************************************
338 * Create a Media Instance object.
341 * - All items created by _new start with a refcount set to 1.
342 * - Accessor _release decrease the refcount by 1, if after that
343 * operation the refcount is 0, the object is destroyed.
344 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
346 * Object locking strategy:
347 * - No lock held while in constructor.
348 * - When accessing any member variable this lock is held. (XXX who locks?)
349 * - When attempting to destroy the object the lock is also held.
350 **************************************************************************/
351 libvlc_media_player_t *
352 libvlc_media_player_new( libvlc_instance_t *instance )
354 libvlc_media_player_t * mp;
358 mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
359 if (unlikely(mp == NULL))
361 libvlc_printerr("Not enough memory");
364 vlc_object_attach (mp, mp->p_libvlc);
367 var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
370 var_Create (mp, "window", VLC_VAR_STRING);
371 var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
373 var_Create (mp, "drawable-hwnd", VLC_VAR_ADDRESS);
376 var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
377 var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
380 var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
381 var_SetBool (mp, "keyboard-events", true);
382 var_Create (mp, "mouse-events", VLC_VAR_BOOL);
383 var_SetBool (mp, "mouse-events", true);
385 var_Create (mp, "fullscreen", VLC_VAR_BOOL);
386 var_Create (mp, "autoscale", VLC_VAR_BOOL);
387 var_SetBool (mp, "autoscale", true);
388 var_Create (mp, "scale", VLC_VAR_FLOAT);
389 var_SetFloat (mp, "scale", 1.);
390 var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
391 var_Create (mp, "crop", VLC_VAR_STRING);
392 var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
393 var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
395 var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
397 var_Create (mp, "marq-marquee", VLC_VAR_STRING);
398 var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
399 var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
400 var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
401 var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
402 var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
403 var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
404 var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
405 var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
407 var_Create (mp, "logo-file", VLC_VAR_STRING);
408 var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
409 var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
410 var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
411 var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
412 var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
413 var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
415 var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
416 var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
417 var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
418 var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
419 var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
422 var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
423 var_Create (mp, "volume-muted", VLC_VAR_BOOL);
424 var_Create (mp, "saved-volume", VLC_VAR_INTEGER);
425 var_Create (mp, "volume-change", VLC_VAR_VOID);
426 var_Create (mp, "find-input-callback", VLC_VAR_ADDRESS);
427 var_SetAddress (mp, "find-input-callback", find_input);
430 mp->state = libvlc_NothingSpecial;
431 mp->p_libvlc_instance = instance;
432 mp->input.p_thread = NULL;
433 mp->input.p_resource = NULL;
434 vlc_mutex_init (&mp->input.lock);
436 mp->p_event_manager = libvlc_event_manager_new(mp, instance);
437 if (unlikely(mp->p_event_manager == NULL))
439 vlc_object_release(mp);
442 vlc_mutex_init(&mp->object_lock);
444 register_event(mp, NothingSpecial);
445 register_event(mp, Opening);
446 register_event(mp, Buffering);
447 register_event(mp, Playing);
448 register_event(mp, Paused);
449 register_event(mp, Stopped);
450 register_event(mp, Forward);
451 register_event(mp, Backward);
452 register_event(mp, EndReached);
453 register_event(mp, EncounteredError);
454 register_event(mp, SeekableChanged);
456 register_event(mp, PositionChanged);
457 register_event(mp, TimeChanged);
458 register_event(mp, LengthChanged);
459 register_event(mp, TitleChanged);
460 register_event(mp, PausableChanged);
462 /* Snapshot initialization */
463 register_event(mp, SnapshotTaken);
465 register_event(mp, MediaChanged);
467 /* Attach a var callback to the global object to provide the glue between
468 * vout_thread that generates the event and media_player that re-emits it
469 * with its own event manager
471 * FIXME: It's unclear why we want to put this in public API, and why we
472 * want to expose it in such a limiting and ugly way.
474 var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
476 libvlc_retain(instance);
480 /**************************************************************************
481 * Create a Media Instance object with a media descriptor.
482 **************************************************************************/
483 libvlc_media_player_t *
484 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
486 libvlc_media_player_t * p_mi;
488 p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
492 libvlc_media_retain( p_md );
498 /**************************************************************************
499 * Destroy a Media Instance object (libvlc internal)
501 * Warning: No lock held here, but hey, this is internal. Caller must lock.
502 **************************************************************************/
503 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
507 /* Detach Callback from the main libvlc object */
508 var_DelCallback( p_mi->p_libvlc,
509 "snapshot-file", snapshot_was_taken, p_mi );
511 /* No need for lock_input() because no other threads knows us anymore */
512 if( p_mi->input.p_thread )
513 release_input_thread(p_mi, true);
514 if( p_mi->input.p_resource )
516 input_resource_Terminate( p_mi->input.p_resource );
517 input_resource_Release( p_mi->input.p_resource );
518 p_mi->input.p_resource = NULL;
520 vlc_mutex_destroy( &p_mi->input.lock );
522 libvlc_event_manager_release( p_mi->p_event_manager );
523 libvlc_media_release( p_mi->p_md );
524 vlc_mutex_destroy( &p_mi->object_lock );
526 libvlc_instance_t *instance = p_mi->p_libvlc_instance;
527 vlc_object_release( p_mi );
528 libvlc_release(instance);
531 /**************************************************************************
532 * Release a Media Instance object.
534 * Function does the locking.
535 **************************************************************************/
536 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
542 destroy = !--p_mi->i_refcount;
546 libvlc_media_player_destroy( p_mi );
549 /**************************************************************************
550 * Retain a Media Instance object.
552 * Caller must hold the lock.
553 **************************************************************************/
554 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
563 /**************************************************************************
564 * Set the Media descriptor associated with the instance.
566 * Enter without lock -- function will lock the object.
567 **************************************************************************/
568 void libvlc_media_player_set_media(
569 libvlc_media_player_t *p_mi,
570 libvlc_media_t *p_md )
574 /* FIXME I am not sure if it is a user request or on die(eof/error)
576 release_input_thread( p_mi,
577 p_mi->input.p_thread &&
578 !p_mi->input.p_thread->b_eof &&
579 !p_mi->input.p_thread->b_error );
582 set_state( p_mi, libvlc_NothingSpecial, true );
583 unlock_input( p_mi );
585 libvlc_media_release( p_mi->p_md );
591 return; /* It is ok to pass a NULL md */
594 libvlc_media_retain( p_md );
597 /* The policy here is to ignore that we were created using a different
598 * libvlc_instance, because we don't really care */
599 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
603 /* Send an event for the newly available media */
604 libvlc_event_t event;
605 event.type = libvlc_MediaPlayerMediaChanged;
606 event.u.media_player_media_changed.new_media = p_md;
607 libvlc_event_send( p_mi->p_event_manager, &event );
611 /**************************************************************************
612 * Get the Media descriptor associated with the instance.
613 **************************************************************************/
615 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
622 libvlc_media_retain( p_mi->p_md );
627 /**************************************************************************
628 * Get the event Manager.
629 **************************************************************************/
630 libvlc_event_manager_t *
631 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
633 return p_mi->p_event_manager;
636 /**************************************************************************
637 * Tell media player to start playing.
638 **************************************************************************/
639 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
643 input_thread_t *p_input_thread = p_mi->input.p_thread;
646 /* A thread already exists, send it a play message */
647 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
648 unlock_input( p_mi );
652 /* Ignore previous exception */
658 unlock_input( p_mi );
659 libvlc_printerr( "No associated media descriptor" );
663 if( !p_mi->input.p_resource )
664 p_mi->input.p_resource = input_resource_New( VLC_OBJECT( p_mi ) );
665 p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
666 p_mi->input.p_resource );
668 if( !p_input_thread )
671 libvlc_printerr( "Not enough memory" );
675 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
676 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
677 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
679 if( input_Start( p_input_thread ) )
682 var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
683 var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
684 var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
685 vlc_object_release( p_input_thread );
686 libvlc_printerr( "Input initialization failure" );
689 p_mi->input.p_thread = p_input_thread;
694 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
696 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
697 if( !p_input_thread )
700 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
701 if( state == libvlc_Playing || state == libvlc_Buffering )
705 if( libvlc_media_player_can_pause( p_mi ) )
706 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
708 libvlc_media_player_stop( p_mi );
714 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
717 vlc_object_release( p_input_thread );
720 /**************************************************************************
722 **************************************************************************/
723 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
725 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
726 bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
728 libvlc_media_player_set_pause( p_mi, playing );
731 /**************************************************************************
732 * Tells whether the media player is currently playing.
734 * Enter with lock held.
735 **************************************************************************/
736 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
738 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
739 return (libvlc_Playing == state) || (libvlc_Buffering == state);
742 /**************************************************************************
744 **************************************************************************/
745 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
747 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
750 release_input_thread( p_mi, true ); /* This will stop the input thread */
752 /* Force to go to stopped state, in case we were in Ended, or Error
754 if( state != libvlc_Stopped )
756 set_state( p_mi, libvlc_Stopped, false );
758 /* Construct and send the event */
759 libvlc_event_t event;
760 event.type = libvlc_MediaPlayerStopped;
761 libvlc_event_send( p_mi->p_event_manager, &event );
764 if( p_mi->input.p_resource != NULL )
765 input_resource_TerminateVout( p_mi->input.p_resource );
769 /**************************************************************************
771 **************************************************************************/
772 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
775 assert (p_mi != NULL);
777 var_SetAddress (p_mi, "drawable-nsobject", drawable);
779 (void) p_mi; (void)drawable;
783 /**************************************************************************
785 **************************************************************************/
786 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
788 assert (p_mi != NULL);
790 return var_GetAddress (p_mi, "drawable-nsobject");
796 /**************************************************************************
798 **************************************************************************/
799 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
803 var_SetInteger (p_mi, "drawable-agl", drawable);
805 (void) p_mi; (void)drawable;
809 /**************************************************************************
811 **************************************************************************/
812 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
814 assert (p_mi != NULL);
816 return var_GetInteger (p_mi, "drawable-agl");
822 /**************************************************************************
824 **************************************************************************/
825 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
828 assert (p_mi != NULL);
829 var_SetString (p_mi, "window", "embed-xid,any");
830 var_SetInteger (p_mi, "drawable-xid", drawable);
833 /**************************************************************************
835 **************************************************************************/
836 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
838 return var_GetInteger (p_mi, "drawable-xid");
841 /**************************************************************************
843 **************************************************************************/
844 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
847 assert (p_mi != NULL);
849 var_SetString (p_mi, "window", "embed-hwnd,any");
850 var_SetAddress (p_mi, "drawable-hwnd", drawable);
852 (void) p_mi; (void) drawable;
856 /**************************************************************************
858 **************************************************************************/
859 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
861 assert (p_mi != NULL);
863 return var_GetAddress (p_mi, "drawable-hwnd");
869 /**************************************************************************
870 * Getters for stream information
871 **************************************************************************/
872 libvlc_time_t libvlc_media_player_get_length(
873 libvlc_media_player_t *p_mi )
875 input_thread_t *p_input_thread;
876 libvlc_time_t i_time;
878 p_input_thread = libvlc_get_input_thread ( p_mi );
879 if( !p_input_thread )
882 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
883 vlc_object_release( p_input_thread );
888 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
890 input_thread_t *p_input_thread;
891 libvlc_time_t i_time;
893 p_input_thread = libvlc_get_input_thread ( p_mi );
894 if( !p_input_thread )
897 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
898 vlc_object_release( p_input_thread );
902 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
903 libvlc_time_t i_time )
905 input_thread_t *p_input_thread;
907 p_input_thread = libvlc_get_input_thread ( p_mi );
908 if( !p_input_thread )
911 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
912 vlc_object_release( p_input_thread );
915 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
918 input_thread_t *p_input_thread;
920 p_input_thread = libvlc_get_input_thread ( p_mi );
921 if( !p_input_thread )
924 var_SetFloat( p_input_thread, "position", position );
925 vlc_object_release( p_input_thread );
928 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
930 input_thread_t *p_input_thread;
933 p_input_thread = libvlc_get_input_thread ( p_mi );
934 if( !p_input_thread )
937 f_position = var_GetFloat( p_input_thread, "position" );
938 vlc_object_release( p_input_thread );
943 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
946 input_thread_t *p_input_thread;
948 p_input_thread = libvlc_get_input_thread ( p_mi );
949 if( !p_input_thread )
952 var_SetInteger( p_input_thread, "chapter", chapter );
953 vlc_object_release( p_input_thread );
956 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
958 input_thread_t *p_input_thread;
961 p_input_thread = libvlc_get_input_thread ( p_mi );
962 if( !p_input_thread )
965 i_chapter = var_GetInteger( p_input_thread, "chapter" );
966 vlc_object_release( p_input_thread );
971 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
973 input_thread_t *p_input_thread;
976 p_input_thread = libvlc_get_input_thread ( p_mi );
977 if( !p_input_thread )
980 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
981 vlc_object_release( p_input_thread );
986 int libvlc_media_player_get_chapter_count_for_title(
987 libvlc_media_player_t *p_mi,
990 input_thread_t *p_input_thread;
993 p_input_thread = libvlc_get_input_thread ( p_mi );
994 if( !p_input_thread )
998 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
1000 vlc_object_release( p_input_thread );
1003 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1004 vlc_object_release( p_input_thread );
1010 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1013 input_thread_t *p_input_thread;
1015 p_input_thread = libvlc_get_input_thread ( p_mi );
1016 if( !p_input_thread )
1019 var_SetInteger( p_input_thread, "title", i_title );
1020 vlc_object_release( p_input_thread );
1023 libvlc_event_t event;
1024 event.type = libvlc_MediaPlayerTitleChanged;
1025 event.u.media_player_title_changed.new_title = i_title;
1026 libvlc_event_send( p_mi->p_event_manager, &event );
1029 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1031 input_thread_t *p_input_thread;
1034 p_input_thread = libvlc_get_input_thread ( p_mi );
1035 if( !p_input_thread )
1038 i_title = var_GetInteger( p_input_thread, "title" );
1039 vlc_object_release( p_input_thread );
1044 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1046 input_thread_t *p_input_thread;
1049 p_input_thread = libvlc_get_input_thread ( p_mi );
1050 if( !p_input_thread )
1053 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1054 vlc_object_release( p_input_thread );
1059 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1061 input_thread_t *p_input_thread;
1063 p_input_thread = libvlc_get_input_thread ( p_mi );
1064 if( !p_input_thread )
1067 int i_type = var_Type( p_input_thread, "next-chapter" );
1068 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1069 "next-chapter":"next-title", true );
1071 vlc_object_release( p_input_thread );
1074 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1076 input_thread_t *p_input_thread;
1078 p_input_thread = libvlc_get_input_thread ( p_mi );
1079 if( !p_input_thread )
1082 int i_type = var_Type( p_input_thread, "next-chapter" );
1083 var_SetBool( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1084 "prev-chapter":"prev-title", true );
1086 vlc_object_release( p_input_thread );
1089 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1091 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1094 if( p_input_thread )
1096 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1098 vlc_object_release( p_input_thread );
1103 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1106 input_thread_t *p_input_thread =
1107 libvlc_get_input_thread ( p_mi );
1108 if ( !p_input_thread )
1111 b_will_play = !p_input_thread->b_die && !p_input_thread->b_dead;
1112 vlc_object_release( p_input_thread );
1117 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1121 libvlc_printerr ("Playing backward not supported");
1125 var_SetFloat (p_mi, "rate", rate);
1127 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1128 if( !p_input_thread )
1130 var_SetFloat( p_input_thread, "rate", rate );
1131 vlc_object_release( p_input_thread );
1135 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1137 return var_GetFloat (p_mi, "rate");
1140 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1143 libvlc_state_t state = p_mi->state;
1148 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1150 input_thread_t *p_input_thread;
1153 p_input_thread = libvlc_get_input_thread ( p_mi );
1154 if ( !p_input_thread )
1156 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1157 vlc_object_release( p_input_thread );
1162 /* internal function, used by audio, video */
1163 libvlc_track_description_t *
1164 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1165 const char *psz_variable )
1167 input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1168 libvlc_track_description_t *p_track_description = NULL,
1169 *p_actual, *p_previous;
1174 vlc_value_t val_list, text_list;
1175 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1178 if( val_list.p_list->i_count <= 0 )
1181 p_track_description = ( libvlc_track_description_t * )
1182 malloc( sizeof( libvlc_track_description_t ) );
1183 if ( !p_track_description )
1185 libvlc_printerr( "Not enough memory" );
1188 p_actual = p_track_description;
1190 for( int i = 0; i < val_list.p_list->i_count; i++ )
1194 p_actual = ( libvlc_track_description_t * )
1195 malloc( sizeof( libvlc_track_description_t ) );
1198 libvlc_track_description_release( p_track_description );
1199 libvlc_printerr( "Not enough memory" );
1203 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1204 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1205 p_actual->p_next = NULL;
1207 p_previous->p_next = p_actual;
1208 p_previous = p_actual;
1213 var_FreeList( &val_list, &text_list );
1214 vlc_object_release( p_input );
1216 return p_track_description;
1219 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1221 libvlc_track_description_t *p_actual, *p_before;
1226 free( p_actual->psz_name );
1227 p_before = p_actual;
1228 p_actual = p_before->p_next;
1233 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1235 input_thread_t *p_input_thread;
1238 p_input_thread = libvlc_get_input_thread ( p_mi );
1239 if ( !p_input_thread )
1241 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1242 vlc_object_release( p_input_thread );
1247 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1249 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1250 if( p_input_thread != NULL )
1252 var_TriggerCallback( p_input_thread, "frame-next" );
1253 vlc_object_release( p_input_thread );