1 /*****************************************************************************
2 * media_player.c: Libvlc API Media Instance management functions
3 *****************************************************************************
4 * Copyright (C) 2005-2011 VLC authors and VideoLAN
6 * Authors: Clément Stenac <zorglub@videolan.org>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation; either version 2.1 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
29 #include <vlc/libvlc.h>
30 #include <vlc/libvlc_media.h>
31 #include <vlc/libvlc_events.h>
33 #include <vlc_demux.h>
34 #include <vlc_input.h>
39 #include "libvlc_internal.h"
40 #include "media_internal.h" // libvlc_media_set_state()
41 #include "media_player_internal.h"
44 input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
45 vlc_value_t oldval, vlc_value_t newval,
48 input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
49 vlc_value_t oldval, vlc_value_t newval,
52 input_scrambled_changed( vlc_object_t * p_this, char const * psz_cmd,
53 vlc_value_t oldval, vlc_value_t newval,
56 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
57 vlc_value_t oldval, vlc_value_t newval,
61 snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
62 vlc_value_t oldval, vlc_value_t newval, void *p_data );
64 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
70 #define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
71 static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
73 libvlc_event_manager_register_event_type(mp->p_event_manager, type);
77 * The input lock protects the input and input resource pointer.
78 * It MUST NOT be used from callbacks.
80 * The object lock protects the reset, namely the media and the player state.
81 * It can, and usually needs to be taken from callbacks.
82 * The object lock can be acquired under the input lock... and consequently
83 * the opposite order is STRICTLY PROHIBITED.
85 static inline void lock(libvlc_media_player_t *mp)
87 vlc_mutex_lock(&mp->object_lock);
90 static inline void unlock(libvlc_media_player_t *mp)
92 vlc_mutex_unlock(&mp->object_lock);
95 static inline void lock_input(libvlc_media_player_t *mp)
97 vlc_mutex_lock(&mp->input.lock);
100 static inline void unlock_input(libvlc_media_player_t *mp)
102 vlc_mutex_unlock(&mp->input.lock);
106 * Release the associated input thread.
108 * Object lock is NOT held.
109 * Input lock is held or instance is being destroyed.
111 static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
115 input_thread_t *p_input_thread = p_mi->input.p_thread;
116 if( !p_input_thread )
118 p_mi->input.p_thread = NULL;
120 var_DelCallback( p_input_thread, "can-seek",
121 input_seekable_changed, p_mi );
122 var_DelCallback( p_input_thread, "can-pause",
123 input_pausable_changed, p_mi );
124 var_DelCallback( p_input_thread, "program-scrambled",
125 input_scrambled_changed, p_mi );
126 var_DelCallback( p_input_thread, "intf-event",
127 input_event_changed, p_mi );
129 /* We owned this one */
130 input_Stop( p_input_thread, b_input_abort );
131 input_Close( 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_scrambled_changed( vlc_object_t * p_this, char const * psz_cmd,
222 vlc_value_t oldval, vlc_value_t newval,
228 libvlc_media_player_t * p_mi = p_userdata;
229 libvlc_event_t event;
231 event.type = libvlc_MediaPlayerScrambledChanged;
232 event.u.media_player_scrambled_changed.new_scrambled = newval.b_bool;
234 libvlc_event_send( p_mi->p_event_manager, &event );
239 input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
240 vlc_value_t oldval, vlc_value_t newval,
244 input_thread_t * p_input = (input_thread_t *)p_this;
245 libvlc_media_player_t * p_mi = p_userdata;
246 libvlc_event_t event;
248 assert( !strcmp( psz_cmd, "intf-event" ) );
250 if( newval.i_int == INPUT_EVENT_STATE )
252 libvlc_state_t libvlc_state;
254 switch ( var_GetInteger( p_input, "state" ) )
257 libvlc_state = libvlc_NothingSpecial;
258 event.type = libvlc_MediaPlayerNothingSpecial;
261 libvlc_state = libvlc_Opening;
262 event.type = libvlc_MediaPlayerOpening;
265 libvlc_state = libvlc_Playing;
266 event.type = libvlc_MediaPlayerPlaying;
269 libvlc_state = libvlc_Paused;
270 event.type = libvlc_MediaPlayerPaused;
273 libvlc_state = libvlc_Ended;
274 event.type = libvlc_MediaPlayerEndReached;
277 libvlc_state = libvlc_Error;
278 event.type = libvlc_MediaPlayerEncounteredError;
285 set_state( p_mi, libvlc_state, false );
286 libvlc_event_send( p_mi->p_event_manager, &event );
288 else if( newval.i_int == INPUT_EVENT_ABORT )
290 libvlc_state_t libvlc_state = libvlc_Stopped;
291 event.type = libvlc_MediaPlayerStopped;
293 set_state( p_mi, libvlc_state, false );
294 libvlc_event_send( p_mi->p_event_manager, &event );
296 else if( newval.i_int == INPUT_EVENT_POSITION )
298 if( var_GetInteger( p_input, "state" ) != PLAYING_S )
299 return VLC_SUCCESS; /* Don't send the position while stopped */
302 event.type = libvlc_MediaPlayerPositionChanged;
303 event.u.media_player_position_changed.new_position =
304 var_GetFloat( p_input, "position" );
305 libvlc_event_send( p_mi->p_event_manager, &event );
308 event.type = libvlc_MediaPlayerTimeChanged;
309 event.u.media_player_time_changed.new_time =
310 from_mtime(var_GetTime( p_input, "time" ));
311 libvlc_event_send( p_mi->p_event_manager, &event );
313 else if( newval.i_int == INPUT_EVENT_LENGTH )
315 event.type = libvlc_MediaPlayerLengthChanged;
316 event.u.media_player_length_changed.new_length =
317 from_mtime(var_GetTime( p_input, "length" ));
318 libvlc_event_send( p_mi->p_event_manager, &event );
320 else if( newval.i_int == INPUT_EVENT_CACHE )
322 event.type = libvlc_MediaPlayerBuffering;
323 event.u.media_player_buffering.new_cache = (int)(100 *
324 var_GetFloat( p_input, "cache" ));
325 libvlc_event_send( p_mi->p_event_manager, &event );
327 else if( newval.i_int == INPUT_EVENT_VOUT )
329 vout_thread_t **pp_vout;
331 if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
337 for( size_t i = 0; i < i_vout; i++ )
338 vlc_object_release( pp_vout[i] );
342 event.type = libvlc_MediaPlayerVout;
343 event.u.media_player_vout.new_count = i_vout;
344 libvlc_event_send( p_mi->p_event_manager, &event );
350 /**************************************************************************
351 * Snapshot Taken Event.
353 * FIXME: This snapshot API interface makes no sense in media_player.
354 *************************************************************************/
355 static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
356 vlc_value_t oldval, vlc_value_t newval, void *p_data )
358 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
360 libvlc_media_player_t *mp = p_data;
361 libvlc_event_t event;
362 event.type = libvlc_MediaPlayerSnapshotTaken;
363 event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
364 libvlc_event_send(mp->p_event_manager, &event);
370 static void libvlc_media_player_destroy( libvlc_media_player_t * );
373 /**************************************************************************
374 * Create a Media Instance object.
377 * - All items created by _new start with a refcount set to 1.
378 * - Accessor _release decrease the refcount by 1, if after that
379 * operation the refcount is 0, the object is destroyed.
380 * - Accessor _retain increase the refcount by 1 (XXX: to implement)
382 * Object locking strategy:
383 * - No lock held while in constructor.
384 * - When accessing any member variable this lock is held. (XXX who locks?)
385 * - When attempting to destroy the object the lock is also held.
386 **************************************************************************/
387 libvlc_media_player_t *
388 libvlc_media_player_new( libvlc_instance_t *instance )
390 libvlc_media_player_t * mp;
394 mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
395 if (unlikely(mp == NULL))
397 libvlc_printerr("Not enough memory");
402 var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
405 var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
406 var_Create (mp, "window", VLC_VAR_STRING);
407 var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
408 var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
409 var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
410 var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
411 var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
412 var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
413 var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
414 var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
415 var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
416 var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
417 var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
418 #if defined (_WIN32) || defined (__OS2__)
419 var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
422 var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
423 var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
426 var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
427 var_SetBool (mp, "keyboard-events", true);
428 var_Create (mp, "mouse-events", VLC_VAR_BOOL);
429 var_SetBool (mp, "mouse-events", true);
431 var_Create (mp, "fullscreen", VLC_VAR_BOOL);
432 var_Create (mp, "autoscale", VLC_VAR_BOOL);
433 var_SetBool (mp, "autoscale", true);
434 var_Create (mp, "scale", VLC_VAR_FLOAT);
435 var_SetFloat (mp, "scale", 1.);
436 var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
437 var_Create (mp, "crop", VLC_VAR_STRING);
438 var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
439 var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
441 var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
443 var_Create (mp, "marq-marquee", VLC_VAR_STRING);
444 var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
445 var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
446 var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
447 var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
448 var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
449 var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
450 var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
451 var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
453 var_Create (mp, "logo-file", VLC_VAR_STRING);
454 var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
455 var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
456 var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
457 var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
458 var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
459 var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
461 var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
462 var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
463 var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
464 var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
465 var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
468 var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
469 var_Create (mp, "mute", VLC_VAR_BOOL);
470 var_Create (mp, "volume", VLC_VAR_FLOAT);
471 var_Create (mp, "corks", VLC_VAR_INTEGER);
472 var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
473 var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
474 var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
475 var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
476 var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
477 var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
478 var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
479 var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
480 var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
481 var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
482 var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
483 var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
486 var_Create (mp, "video-title-show", VLC_VAR_BOOL);
487 var_Create (mp, "video-title-position", VLC_VAR_INTEGER);
488 var_Create (mp, "video-title-timeout", VLC_VAR_INTEGER);
491 var_Create (mp, "equalizer-preamp", VLC_VAR_FLOAT);
492 var_Create (mp, "equalizer-bands", VLC_VAR_STRING);
495 mp->state = libvlc_NothingSpecial;
496 mp->p_libvlc_instance = instance;
497 mp->input.p_thread = NULL;
498 mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
499 if (unlikely(mp->input.p_resource == NULL))
501 vlc_object_release(mp);
504 audio_output_t *aout = input_resource_GetAout(mp->input.p_resource);
506 input_resource_PutAout(mp->input.p_resource, aout);
508 vlc_mutex_init (&mp->input.lock);
510 mp->p_event_manager = libvlc_event_manager_new(mp, instance);
511 if (unlikely(mp->p_event_manager == NULL))
513 input_resource_Release(mp->input.p_resource);
514 vlc_object_release(mp);
517 vlc_mutex_init(&mp->object_lock);
519 register_event(mp, NothingSpecial);
520 register_event(mp, Opening);
521 register_event(mp, Buffering);
522 register_event(mp, Playing);
523 register_event(mp, Paused);
524 register_event(mp, Stopped);
525 register_event(mp, Forward);
526 register_event(mp, Backward);
527 register_event(mp, EndReached);
528 register_event(mp, EncounteredError);
529 register_event(mp, SeekableChanged);
531 register_event(mp, PositionChanged);
532 register_event(mp, TimeChanged);
533 register_event(mp, LengthChanged);
534 register_event(mp, TitleChanged);
535 register_event(mp, PausableChanged);
537 register_event(mp, Vout);
538 register_event(mp, ScrambledChanged);
540 /* Snapshot initialization */
541 register_event(mp, SnapshotTaken);
543 register_event(mp, MediaChanged);
545 /* Attach a var callback to the global object to provide the glue between
546 * vout_thread that generates the event and media_player that re-emits it
547 * with its own event manager
549 * FIXME: It's unclear why we want to put this in public API, and why we
550 * want to expose it in such a limiting and ugly way.
552 var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
554 libvlc_retain(instance);
558 /**************************************************************************
559 * Create a Media Instance object with a media descriptor.
560 **************************************************************************/
561 libvlc_media_player_t *
562 libvlc_media_player_new_from_media( libvlc_media_t * p_md )
564 libvlc_media_player_t * p_mi;
566 p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
570 libvlc_media_retain( p_md );
576 /**************************************************************************
577 * Destroy a Media Instance object (libvlc internal)
579 * Warning: No lock held here, but hey, this is internal. Caller must lock.
580 **************************************************************************/
581 static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
585 /* Detach Callback from the main libvlc object */
586 var_DelCallback( p_mi->p_libvlc,
587 "snapshot-file", snapshot_was_taken, p_mi );
589 /* No need for lock_input() because no other threads knows us anymore */
590 if( p_mi->input.p_thread )
591 release_input_thread(p_mi, true);
592 input_resource_Terminate( p_mi->input.p_resource );
593 input_resource_Release( p_mi->input.p_resource );
594 vlc_mutex_destroy( &p_mi->input.lock );
596 libvlc_event_manager_release( p_mi->p_event_manager );
597 libvlc_media_release( p_mi->p_md );
598 vlc_mutex_destroy( &p_mi->object_lock );
600 libvlc_instance_t *instance = p_mi->p_libvlc_instance;
601 vlc_object_release( p_mi );
602 libvlc_release(instance);
605 /**************************************************************************
606 * Release a Media Instance object.
608 * Function does the locking.
609 **************************************************************************/
610 void libvlc_media_player_release( libvlc_media_player_t *p_mi )
616 destroy = !--p_mi->i_refcount;
620 libvlc_media_player_destroy( p_mi );
623 /**************************************************************************
624 * Retain a Media Instance object.
626 * Caller must hold the lock.
627 **************************************************************************/
628 void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
637 /**************************************************************************
638 * Set the Media descriptor associated with the instance.
640 * Enter without lock -- function will lock the object.
641 **************************************************************************/
642 void libvlc_media_player_set_media(
643 libvlc_media_player_t *p_mi,
644 libvlc_media_t *p_md )
648 /* FIXME I am not sure if it is a user request or on die(eof/error)
650 release_input_thread( p_mi,
651 p_mi->input.p_thread &&
652 !p_mi->input.p_thread->b_eof &&
653 !p_mi->input.p_thread->b_error );
656 set_state( p_mi, libvlc_NothingSpecial, true );
657 unlock_input( p_mi );
659 libvlc_media_release( p_mi->p_md );
665 return; /* It is ok to pass a NULL md */
668 libvlc_media_retain( p_md );
671 /* The policy here is to ignore that we were created using a different
672 * libvlc_instance, because we don't really care */
673 p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
677 /* Send an event for the newly available media */
678 libvlc_event_t event;
679 event.type = libvlc_MediaPlayerMediaChanged;
680 event.u.media_player_media_changed.new_media = p_md;
681 libvlc_event_send( p_mi->p_event_manager, &event );
685 /**************************************************************************
686 * Get the Media descriptor associated with the instance.
687 **************************************************************************/
689 libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
696 libvlc_media_retain( p_mi->p_md );
701 /**************************************************************************
702 * Get the event Manager.
703 **************************************************************************/
704 libvlc_event_manager_t *
705 libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
707 return p_mi->p_event_manager;
710 /**************************************************************************
711 * Tell media player to start playing.
712 **************************************************************************/
713 int libvlc_media_player_play( libvlc_media_player_t *p_mi )
717 input_thread_t *p_input_thread = p_mi->input.p_thread;
720 /* A thread already exists, send it a play message */
721 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
722 unlock_input( p_mi );
726 /* Ignore previous exception */
732 unlock_input( p_mi );
733 libvlc_printerr( "No associated media descriptor" );
737 p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
738 p_mi->input.p_resource );
740 if( !p_input_thread )
743 libvlc_printerr( "Not enough memory" );
747 var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
748 var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
749 var_AddCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
750 var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
752 if( input_Start( p_input_thread ) )
755 var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
756 var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
757 var_DelCallback( p_input_thread, "program-scrambled", input_scrambled_changed, p_mi );
758 var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
759 vlc_object_release( p_input_thread );
760 libvlc_printerr( "Input initialization failure" );
763 p_mi->input.p_thread = p_input_thread;
768 void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
770 input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
771 if( !p_input_thread )
774 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
775 if( state == libvlc_Playing || state == libvlc_Buffering )
779 if( libvlc_media_player_can_pause( p_mi ) )
780 input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
782 libvlc_media_player_stop( p_mi );
788 input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
791 vlc_object_release( p_input_thread );
794 /**************************************************************************
796 **************************************************************************/
797 void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
799 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
800 bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
802 libvlc_media_player_set_pause( p_mi, playing );
805 /**************************************************************************
806 * Tells whether the media player is currently playing.
808 * Enter with lock held.
809 **************************************************************************/
810 int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
812 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
813 return (libvlc_Playing == state) || (libvlc_Buffering == state);
816 /**************************************************************************
818 **************************************************************************/
819 void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
821 libvlc_state_t state = libvlc_media_player_get_state( p_mi );
824 release_input_thread( p_mi, true ); /* This will stop the input thread */
826 /* Force to go to stopped state, in case we were in Ended, or Error
828 if( state != libvlc_Stopped )
830 set_state( p_mi, libvlc_Stopped, false );
832 /* Construct and send the event */
833 libvlc_event_t event;
834 event.type = libvlc_MediaPlayerStopped;
835 libvlc_event_send( p_mi->p_event_manager, &event );
838 input_resource_Terminate( p_mi->input.p_resource );
843 void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
844 void *(*lock_cb) (void *, void **),
845 void (*unlock_cb) (void *, void *, void *const *),
846 void (*display_cb) (void *, void *),
849 var_SetAddress( mp, "vmem-lock", lock_cb );
850 var_SetAddress( mp, "vmem-unlock", unlock_cb );
851 var_SetAddress( mp, "vmem-display", display_cb );
852 var_SetAddress( mp, "vmem-data", opaque );
853 var_SetString( mp, "vout", "vmem" );
856 void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
857 libvlc_video_format_cb setup,
858 libvlc_video_cleanup_cb cleanup )
860 var_SetAddress( mp, "vmem-setup", setup );
861 var_SetAddress( mp, "vmem-cleanup", cleanup );
864 void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
865 unsigned width, unsigned height, unsigned pitch )
867 var_SetString( mp, "vmem-chroma", chroma );
868 var_SetInteger( mp, "vmem-width", width );
869 var_SetInteger( mp, "vmem-height", height );
870 var_SetInteger( mp, "vmem-pitch", pitch );
873 /**************************************************************************
875 **************************************************************************/
876 void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
879 assert (p_mi != NULL);
881 var_SetAddress (p_mi, "drawable-nsobject", drawable);
883 (void) p_mi; (void)drawable;
887 /**************************************************************************
889 **************************************************************************/
890 void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
892 assert (p_mi != NULL);
894 return var_GetAddress (p_mi, "drawable-nsobject");
900 /**************************************************************************
902 **************************************************************************/
903 void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
907 var_SetInteger (p_mi, "drawable-agl", drawable);
909 (void) p_mi; (void)drawable;
913 /**************************************************************************
915 **************************************************************************/
916 uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
918 assert (p_mi != NULL);
920 return var_GetInteger (p_mi, "drawable-agl");
926 /**************************************************************************
928 **************************************************************************/
929 void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
932 assert (p_mi != NULL);
934 var_SetString (p_mi, "vout", drawable ? "xid" : "any");
935 var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
936 var_SetInteger (p_mi, "drawable-xid", drawable);
939 /**************************************************************************
941 **************************************************************************/
942 uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
944 return var_GetInteger (p_mi, "drawable-xid");
947 /**************************************************************************
949 **************************************************************************/
950 void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
953 assert (p_mi != NULL);
954 #if defined (_WIN32) || defined (__OS2__)
955 var_SetString (p_mi, "window",
956 (drawable != NULL) ? "embed-hwnd,any" : "");
957 var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
959 (void) p_mi; (void) drawable;
963 /**************************************************************************
965 **************************************************************************/
966 void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
968 assert (p_mi != NULL);
969 #if defined (_WIN32) || defined (__OS2__)
970 return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
976 void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
977 libvlc_audio_play_cb play_cb,
978 libvlc_audio_pause_cb pause_cb,
979 libvlc_audio_resume_cb resume_cb,
980 libvlc_audio_flush_cb flush_cb,
981 libvlc_audio_drain_cb drain_cb,
984 var_SetAddress( mp, "amem-play", play_cb );
985 var_SetAddress( mp, "amem-pause", pause_cb );
986 var_SetAddress( mp, "amem-resume", resume_cb );
987 var_SetAddress( mp, "amem-flush", flush_cb );
988 var_SetAddress( mp, "amem-drain", drain_cb );
989 var_SetAddress( mp, "amem-data", opaque );
990 var_SetString( mp, "aout", "amem,none" );
992 input_resource_ResetAout(mp->input.p_resource);
995 void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
996 libvlc_audio_set_volume_cb cb )
998 var_SetAddress( mp, "amem-set-volume", cb );
1000 input_resource_ResetAout(mp->input.p_resource);
1003 void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
1004 libvlc_audio_setup_cb setup,
1005 libvlc_audio_cleanup_cb cleanup )
1007 var_SetAddress( mp, "amem-setup", setup );
1008 var_SetAddress( mp, "amem-cleanup", cleanup );
1010 input_resource_ResetAout(mp->input.p_resource);
1013 void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
1014 unsigned rate, unsigned channels )
1016 var_SetString( mp, "amem-format", format );
1017 var_SetInteger( mp, "amem-rate", rate );
1018 var_SetInteger( mp, "amem-channels", channels );
1020 input_resource_ResetAout(mp->input.p_resource);
1024 /**************************************************************************
1025 * Getters for stream information
1026 **************************************************************************/
1027 libvlc_time_t libvlc_media_player_get_length(
1028 libvlc_media_player_t *p_mi )
1030 input_thread_t *p_input_thread;
1031 libvlc_time_t i_time;
1033 p_input_thread = libvlc_get_input_thread ( p_mi );
1034 if( !p_input_thread )
1037 i_time = from_mtime(var_GetTime( p_input_thread, "length" ));
1038 vlc_object_release( p_input_thread );
1043 libvlc_time_t libvlc_media_player_get_time( libvlc_media_player_t *p_mi )
1045 input_thread_t *p_input_thread;
1046 libvlc_time_t i_time;
1048 p_input_thread = libvlc_get_input_thread ( p_mi );
1049 if( !p_input_thread )
1052 i_time = from_mtime(var_GetTime( p_input_thread , "time" ));
1053 vlc_object_release( p_input_thread );
1057 void libvlc_media_player_set_time( libvlc_media_player_t *p_mi,
1058 libvlc_time_t i_time )
1060 input_thread_t *p_input_thread;
1062 p_input_thread = libvlc_get_input_thread ( p_mi );
1063 if( !p_input_thread )
1066 var_SetTime( p_input_thread, "time", to_mtime(i_time) );
1067 vlc_object_release( p_input_thread );
1070 void libvlc_media_player_set_position( libvlc_media_player_t *p_mi,
1073 input_thread_t *p_input_thread;
1075 p_input_thread = libvlc_get_input_thread ( p_mi );
1076 if( !p_input_thread )
1079 var_SetFloat( p_input_thread, "position", position );
1080 vlc_object_release( p_input_thread );
1083 float libvlc_media_player_get_position( libvlc_media_player_t *p_mi )
1085 input_thread_t *p_input_thread;
1088 p_input_thread = libvlc_get_input_thread ( p_mi );
1089 if( !p_input_thread )
1092 f_position = var_GetFloat( p_input_thread, "position" );
1093 vlc_object_release( p_input_thread );
1098 void libvlc_media_player_set_chapter( libvlc_media_player_t *p_mi,
1101 input_thread_t *p_input_thread;
1103 p_input_thread = libvlc_get_input_thread ( p_mi );
1104 if( !p_input_thread )
1107 var_SetInteger( p_input_thread, "chapter", chapter );
1108 vlc_object_release( p_input_thread );
1111 int libvlc_media_player_get_chapter( libvlc_media_player_t *p_mi )
1113 input_thread_t *p_input_thread;
1116 p_input_thread = libvlc_get_input_thread ( p_mi );
1117 if( !p_input_thread )
1120 i_chapter = var_GetInteger( p_input_thread, "chapter" );
1121 vlc_object_release( p_input_thread );
1126 int libvlc_media_player_get_chapter_count( libvlc_media_player_t *p_mi )
1128 input_thread_t *p_input_thread;
1131 p_input_thread = libvlc_get_input_thread ( p_mi );
1132 if( !p_input_thread )
1135 var_Change( p_input_thread, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
1136 vlc_object_release( p_input_thread );
1141 int libvlc_media_player_get_chapter_count_for_title(
1142 libvlc_media_player_t *p_mi,
1145 input_thread_t *p_input_thread;
1148 p_input_thread = libvlc_get_input_thread ( p_mi );
1149 if( !p_input_thread )
1153 if( asprintf( &psz_name, "title %2i", i_title ) == -1 )
1155 vlc_object_release( p_input_thread );
1158 var_Change( p_input_thread, psz_name, VLC_VAR_CHOICESCOUNT, &val, NULL );
1159 vlc_object_release( p_input_thread );
1165 void libvlc_media_player_set_title( libvlc_media_player_t *p_mi,
1168 input_thread_t *p_input_thread;
1170 p_input_thread = libvlc_get_input_thread ( p_mi );
1171 if( !p_input_thread )
1174 var_SetInteger( p_input_thread, "title", i_title );
1175 vlc_object_release( p_input_thread );
1178 libvlc_event_t event;
1179 event.type = libvlc_MediaPlayerTitleChanged;
1180 event.u.media_player_title_changed.new_title = i_title;
1181 libvlc_event_send( p_mi->p_event_manager, &event );
1184 int libvlc_media_player_get_title( libvlc_media_player_t *p_mi )
1186 input_thread_t *p_input_thread;
1189 p_input_thread = libvlc_get_input_thread ( p_mi );
1190 if( !p_input_thread )
1193 i_title = var_GetInteger( p_input_thread, "title" );
1194 vlc_object_release( p_input_thread );
1199 int libvlc_media_player_get_title_count( libvlc_media_player_t *p_mi )
1201 input_thread_t *p_input_thread;
1204 p_input_thread = libvlc_get_input_thread ( p_mi );
1205 if( !p_input_thread )
1208 var_Change( p_input_thread, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
1209 vlc_object_release( p_input_thread );
1214 void libvlc_media_player_next_chapter( libvlc_media_player_t *p_mi )
1216 input_thread_t *p_input_thread;
1218 p_input_thread = libvlc_get_input_thread ( p_mi );
1219 if( !p_input_thread )
1222 int i_type = var_Type( p_input_thread, "next-chapter" );
1223 var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1224 "next-chapter":"next-title" );
1226 vlc_object_release( p_input_thread );
1229 void libvlc_media_player_previous_chapter( libvlc_media_player_t *p_mi )
1231 input_thread_t *p_input_thread;
1233 p_input_thread = libvlc_get_input_thread ( p_mi );
1234 if( !p_input_thread )
1237 int i_type = var_Type( p_input_thread, "next-chapter" );
1238 var_TriggerCallback( p_input_thread, (i_type & VLC_VAR_TYPE) != 0 ?
1239 "prev-chapter":"prev-title" );
1241 vlc_object_release( p_input_thread );
1244 float libvlc_media_player_get_fps( libvlc_media_player_t *p_mi )
1246 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1249 if( p_input_thread )
1251 if( input_Control( p_input_thread, INPUT_GET_VIDEO_FPS, &f_fps ) )
1253 vlc_object_release( p_input_thread );
1258 int libvlc_media_player_will_play( libvlc_media_player_t *p_mi )
1261 input_thread_t *p_input_thread =
1262 libvlc_get_input_thread ( p_mi );
1263 if ( !p_input_thread )
1266 b_will_play = !p_input_thread->b_dead;
1267 vlc_object_release( p_input_thread );
1272 int libvlc_media_player_set_rate( libvlc_media_player_t *p_mi, float rate )
1274 var_SetFloat (p_mi, "rate", rate);
1276 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1277 if( !p_input_thread )
1279 var_SetFloat( p_input_thread, "rate", rate );
1280 vlc_object_release( p_input_thread );
1284 float libvlc_media_player_get_rate( libvlc_media_player_t *p_mi )
1286 return var_GetFloat (p_mi, "rate");
1289 libvlc_state_t libvlc_media_player_get_state( libvlc_media_player_t *p_mi )
1292 libvlc_state_t state = p_mi->state;
1297 int libvlc_media_player_is_seekable( libvlc_media_player_t *p_mi )
1299 input_thread_t *p_input_thread;
1302 p_input_thread = libvlc_get_input_thread ( p_mi );
1303 if ( !p_input_thread )
1305 b_seekable = var_GetBool( p_input_thread, "can-seek" );
1306 vlc_object_release( p_input_thread );
1311 void libvlc_media_player_navigate( libvlc_media_player_t* p_mi,
1314 static const vlc_action_t map[] =
1316 INPUT_NAV_ACTIVATE, INPUT_NAV_UP, INPUT_NAV_DOWN,
1317 INPUT_NAV_LEFT, INPUT_NAV_RIGHT,
1320 if( navigate >= sizeof(map) / sizeof(map[0]) )
1323 input_thread_t *p_input = libvlc_get_input_thread ( p_mi );
1324 if ( p_input == NULL )
1327 input_Control( p_input, map[navigate], NULL );
1328 vlc_object_release( p_input );
1331 /* internal function, used by audio, video */
1332 libvlc_track_description_t *
1333 libvlc_get_track_description( libvlc_media_player_t *p_mi,
1334 const char *psz_variable )
1336 input_thread_t *p_input = libvlc_get_input_thread( p_mi );
1337 libvlc_track_description_t *p_track_description = NULL,
1338 *p_actual, *p_previous;
1343 vlc_value_t val_list, text_list;
1344 var_Change( p_input, psz_variable, VLC_VAR_GETLIST, &val_list, &text_list);
1347 if( val_list.p_list->i_count <= 0 )
1350 p_track_description = ( libvlc_track_description_t * )
1351 malloc( sizeof( libvlc_track_description_t ) );
1352 if ( !p_track_description )
1354 libvlc_printerr( "Not enough memory" );
1357 p_actual = p_track_description;
1359 for( int i = 0; i < val_list.p_list->i_count; i++ )
1363 p_actual = ( libvlc_track_description_t * )
1364 malloc( sizeof( libvlc_track_description_t ) );
1367 libvlc_track_description_list_release( p_track_description );
1368 libvlc_printerr( "Not enough memory" );
1372 p_actual->i_id = val_list.p_list->p_values[i].i_int;
1373 p_actual->psz_name = strdup( text_list.p_list->p_values[i].psz_string );
1374 p_actual->p_next = NULL;
1376 p_previous->p_next = p_actual;
1377 p_previous = p_actual;
1382 var_FreeList( &val_list, &text_list );
1383 vlc_object_release( p_input );
1385 return p_track_description;
1388 // Deprecated alias for libvlc_track_description_list_release
1389 void libvlc_track_description_release( libvlc_track_description_t *p_td )
1391 libvlc_track_description_list_release( p_td );
1394 void libvlc_track_description_list_release( libvlc_track_description_t *p_td )
1396 libvlc_track_description_t *p_actual, *p_before;
1401 free( p_actual->psz_name );
1402 p_before = p_actual;
1403 p_actual = p_before->p_next;
1408 int libvlc_media_player_can_pause( libvlc_media_player_t *p_mi )
1410 input_thread_t *p_input_thread;
1413 p_input_thread = libvlc_get_input_thread ( p_mi );
1414 if ( !p_input_thread )
1416 b_can_pause = var_GetBool( p_input_thread, "can-pause" );
1417 vlc_object_release( p_input_thread );
1422 int libvlc_media_player_program_scrambled( libvlc_media_player_t *p_mi )
1424 input_thread_t *p_input_thread;
1425 bool b_program_scrambled;
1427 p_input_thread = libvlc_get_input_thread ( p_mi );
1428 if ( !p_input_thread )
1430 b_program_scrambled = var_GetBool( p_input_thread, "program-scrambled" );
1431 vlc_object_release( p_input_thread );
1433 return b_program_scrambled;
1436 void libvlc_media_player_next_frame( libvlc_media_player_t *p_mi )
1438 input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
1439 if( p_input_thread != NULL )
1441 var_TriggerCallback( p_input_thread, "frame-next" );
1442 vlc_object_release( p_input_thread );
1446 void libvlc_media_player_set_video_title_display( libvlc_media_player_t *p_mi, libvlc_position_t position, unsigned timeout )
1448 if ( position != libvlc_position_disable )
1450 var_SetBool( p_mi, "video-title-show", true );
1451 var_SetInteger( p_mi, "video-title-position", position );
1452 var_SetInteger( p_mi, "video-title-timeout", timeout );
1456 var_SetBool( p_mi, "video-title-show", false );
1461 * Maximum size of a formatted equalizer amplification band frequency value.
1463 * The allowed value range is supposed to be constrained from -20.0 to 20.0.
1465 * The format string " %.07f" with a minimum value of "-20" gives a maximum
1466 * string length of e.g. " -19.1234567", i.e. 12 bytes (not including the null
1469 #define EQZ_BAND_VALUE_SIZE 12
1471 int libvlc_media_player_set_equalizer( libvlc_media_player_t *p_mi, libvlc_equalizer_t *p_equalizer )
1478 f_preamp = p_equalizer->f_preamp;
1480 psz_bands = malloc( EQZ_BANDS_MAX * EQZ_BAND_VALUE_SIZE + 1 );
1481 if ( unlikely( psz_bands == NULL ) )
1484 char *p = psz_bands;
1486 for ( int i = 0; i < EQZ_BANDS_MAX; i++ )
1488 c = snprintf( p, EQZ_BAND_VALUE_SIZE + 1, " %.07f", p_equalizer->f_amp[i] );
1489 if ( unlikely( c >= EQZ_BAND_VALUE_SIZE + 1 ) )
1504 var_SetFloat( p_mi, "equalizer-preamp", f_preamp );
1505 var_SetString( p_mi, "equalizer-bands", psz_bands );
1507 audio_output_t *p_aout = input_resource_HoldAout( p_mi->input.p_resource );
1510 var_SetFloat( p_aout, "equalizer-preamp", f_preamp );
1511 var_SetString( p_aout, "equalizer-bands", psz_bands );
1513 vlc_object_release( p_aout );