forked from videolan/vlc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmedia_player.c
1401 lines (1182 loc) · 43.6 KB
/
media_player.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*****************************************************************************
* media_player.c: Libvlc API Media Instance management functions
*****************************************************************************
* Copyright (C) 2005-2011 VLC authors and VideoLAN
*
* Authors: Clément Stenac <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <vlc/libvlc.h>
#include <vlc/libvlc_media.h>
#include <vlc/libvlc_events.h>
#include <vlc_demux.h>
#include <vlc_input.h>
#include <vlc_vout.h>
#include <vlc_keys.h>
#include "libvlc_internal.h"
#include "media_internal.h" // libvlc_media_set_state()
#include "media_player_internal.h"
/*
* mapping of libvlc_navigate_mode_t to vlc_action_t
*/
static const vlc_action_t libvlc_navigate_to_action[] =
{
ACTIONID_NAV_ACTIVATE,
ACTIONID_NAV_UP,
ACTIONID_NAV_DOWN,
ACTIONID_NAV_LEFT,
ACTIONID_NAV_RIGHT
};
static const uint32_t libvlc_navigate_to_action_size = \
sizeof( libvlc_navigate_to_action ) / sizeof( libvlc_navigate_to_action[0] );
static int
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int
input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata );
static int
snapshot_was_taken( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data );
static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi );
/*
* Shortcuts
*/
#define register_event(a, b) __register_event(a, libvlc_MediaPlayer ## b)
static inline void __register_event(libvlc_media_player_t *mp, libvlc_event_type_t type)
{
libvlc_event_manager_register_event_type(mp->p_event_manager, type);
}
/*
* The input lock protects the input and input resource pointer.
* It MUST NOT be used from callbacks.
*
* The object lock protects the reset, namely the media and the player state.
* It can, and usually needs to be taken from callbacks.
* The object lock can be acquired under the input lock... and consequently
* the opposite order is STRICTLY PROHIBITED.
*/
static inline void lock(libvlc_media_player_t *mp)
{
vlc_mutex_lock(&mp->object_lock);
}
static inline void unlock(libvlc_media_player_t *mp)
{
vlc_mutex_unlock(&mp->object_lock);
}
static inline void lock_input(libvlc_media_player_t *mp)
{
vlc_mutex_lock(&mp->input.lock);
}
static inline void unlock_input(libvlc_media_player_t *mp)
{
vlc_mutex_unlock(&mp->input.lock);
}
/*
* Release the associated input thread.
*
* Object lock is NOT held.
* Input lock is held or instance is being destroyed.
*/
static void release_input_thread( libvlc_media_player_t *p_mi, bool b_input_abort )
{
assert( p_mi );
input_thread_t *p_input_thread = p_mi->input.p_thread;
if( !p_input_thread )
return;
p_mi->input.p_thread = NULL;
var_DelCallback( p_input_thread, "can-seek",
input_seekable_changed, p_mi );
var_DelCallback( p_input_thread, "can-pause",
input_pausable_changed, p_mi );
var_DelCallback( p_input_thread, "intf-event",
input_event_changed, p_mi );
/* We owned this one */
input_Stop( p_input_thread, b_input_abort );
input_Close( p_input_thread );
}
/*
* Retrieve the input thread. Be sure to release the object
* once you are done with it. (libvlc Internal)
*/
input_thread_t *libvlc_get_input_thread( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread;
assert( p_mi );
lock_input(p_mi);
p_input_thread = p_mi->input.p_thread;
if( p_input_thread )
vlc_object_hold( p_input_thread );
else
libvlc_printerr( "No active input" );
unlock_input(p_mi);
return p_input_thread;
}
/*
* Set the internal state of the media_player. (media player Internal)
*
* Function will lock the media_player.
*/
static void set_state( libvlc_media_player_t *p_mi, libvlc_state_t state,
bool b_locked )
{
if(!b_locked)
lock(p_mi);
p_mi->state = state;
libvlc_media_t *media = p_mi->p_md;
if (media)
libvlc_media_retain(media);
if(!b_locked)
unlock(p_mi);
if (media)
{
// Also set the state of the corresponding media
// This is strictly for convenience.
libvlc_media_set_state(media, state);
libvlc_media_release(media);
}
}
static int
input_seekable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
VLC_UNUSED(p_this);
VLC_UNUSED(psz_cmd);
libvlc_media_player_t * p_mi = p_userdata;
libvlc_event_t event;
event.type = libvlc_MediaPlayerSeekableChanged;
event.u.media_player_seekable_changed.new_seekable = newval.b_bool;
libvlc_event_send( p_mi->p_event_manager, &event );
return VLC_SUCCESS;
}
static int
input_pausable_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
VLC_UNUSED(p_this);
VLC_UNUSED(psz_cmd);
libvlc_media_player_t * p_mi = p_userdata;
libvlc_event_t event;
event.type = libvlc_MediaPlayerPausableChanged;
event.u.media_player_pausable_changed.new_pausable = newval.b_bool;
libvlc_event_send( p_mi->p_event_manager, &event );
return VLC_SUCCESS;
}
static int
input_event_changed( vlc_object_t * p_this, char const * psz_cmd,
vlc_value_t oldval, vlc_value_t newval,
void * p_userdata )
{
VLC_UNUSED(oldval);
input_thread_t * p_input = (input_thread_t *)p_this;
libvlc_media_player_t * p_mi = p_userdata;
libvlc_event_t event;
assert( !strcmp( psz_cmd, "intf-event" ) );
if( newval.i_int == INPUT_EVENT_STATE )
{
libvlc_state_t libvlc_state;
switch ( var_GetInteger( p_input, "state" ) )
{
case INIT_S:
libvlc_state = libvlc_NothingSpecial;
event.type = libvlc_MediaPlayerNothingSpecial;
break;
case OPENING_S:
libvlc_state = libvlc_Opening;
event.type = libvlc_MediaPlayerOpening;
break;
case PLAYING_S:
libvlc_state = libvlc_Playing;
event.type = libvlc_MediaPlayerPlaying;
break;
case PAUSE_S:
libvlc_state = libvlc_Paused;
event.type = libvlc_MediaPlayerPaused;
break;
case END_S:
libvlc_state = libvlc_Ended;
event.type = libvlc_MediaPlayerEndReached;
break;
case ERROR_S:
libvlc_state = libvlc_Error;
event.type = libvlc_MediaPlayerEncounteredError;
break;
default:
return VLC_SUCCESS;
}
set_state( p_mi, libvlc_state, false );
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_ABORT )
{
libvlc_state_t libvlc_state = libvlc_Stopped;
event.type = libvlc_MediaPlayerStopped;
set_state( p_mi, libvlc_state, false );
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_POSITION )
{
if( var_GetInteger( p_input, "state" ) != PLAYING_S )
return VLC_SUCCESS; /* Don't send the position while stopped */
/* */
event.type = libvlc_MediaPlayerPositionChanged;
event.u.media_player_position_changed.new_position =
var_GetFloat( p_input, "position" );
libvlc_event_send( p_mi->p_event_manager, &event );
/* */
event.type = libvlc_MediaPlayerTimeChanged;
event.u.media_player_time_changed.new_time =
from_mtime(var_GetTime( p_input, "time" ));
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_LENGTH )
{
event.type = libvlc_MediaPlayerLengthChanged;
event.u.media_player_length_changed.new_length =
from_mtime(var_GetTime( p_input, "length" ));
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_CACHE )
{
event.type = libvlc_MediaPlayerBuffering;
event.u.media_player_buffering.new_cache = (int)(100 *
var_GetFloat( p_input, "cache" ));
libvlc_event_send( p_mi->p_event_manager, &event );
}
else if( newval.i_int == INPUT_EVENT_VOUT )
{
vout_thread_t **pp_vout;
size_t i_vout;
if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
{
i_vout = 0;
}
else
{
for( size_t i = 0; i < i_vout; i++ )
vlc_object_release( pp_vout[i] );
free( pp_vout );
}
event.type = libvlc_MediaPlayerVout;
event.u.media_player_vout.new_count = i_vout;
libvlc_event_send( p_mi->p_event_manager, &event );
}
return VLC_SUCCESS;
}
/**************************************************************************
* Snapshot Taken Event.
*
* FIXME: This snapshot API interface makes no sense in media_player.
*************************************************************************/
static int snapshot_was_taken(vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_this);
libvlc_media_player_t *mp = p_data;
libvlc_event_t event;
event.type = libvlc_MediaPlayerSnapshotTaken;
event.u.media_player_snapshot_taken.psz_filename = newval.psz_string;
libvlc_event_send(mp->p_event_manager, &event);
return VLC_SUCCESS;
}
/* */
static void libvlc_media_player_destroy( libvlc_media_player_t * );
/**************************************************************************
* Create a Media Instance object.
*
* Refcount strategy:
* - All items created by _new start with a refcount set to 1.
* - Accessor _release decrease the refcount by 1, if after that
* operation the refcount is 0, the object is destroyed.
* - Accessor _retain increase the refcount by 1 (XXX: to implement)
*
* Object locking strategy:
* - No lock held while in constructor.
* - When accessing any member variable this lock is held. (XXX who locks?)
* - When attempting to destroy the object the lock is also held.
**************************************************************************/
libvlc_media_player_t *
libvlc_media_player_new( libvlc_instance_t *instance )
{
libvlc_media_player_t * mp;
assert(instance);
mp = vlc_object_create (instance->p_libvlc_int, sizeof(*mp));
if (unlikely(mp == NULL))
{
libvlc_printerr("Not enough memory");
return NULL;
}
/* Input */
var_Create (mp, "rate", VLC_VAR_FLOAT|VLC_VAR_DOINHERIT);
/* Video */
var_Create (mp, "vout", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
var_Create (mp, "window", VLC_VAR_STRING);
var_Create (mp, "vmem-lock", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-unlock", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-display", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-data", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-setup", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-cleanup", VLC_VAR_ADDRESS);
var_Create (mp, "vmem-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Create (mp, "vmem-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "vmem-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "vmem-pitch", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "drawable-xid", VLC_VAR_INTEGER);
#if defined (WIN32) || defined (__OS2__)
var_Create (mp, "drawable-hwnd", VLC_VAR_INTEGER);
#endif
#ifdef __APPLE__
var_Create (mp, "drawable-agl", VLC_VAR_INTEGER);
var_Create (mp, "drawable-nsobject", VLC_VAR_ADDRESS);
#endif
var_Create (mp, "keyboard-events", VLC_VAR_BOOL);
var_SetBool (mp, "keyboard-events", true);
var_Create (mp, "mouse-events", VLC_VAR_BOOL);
var_SetBool (mp, "mouse-events", true);
var_Create (mp, "fullscreen", VLC_VAR_BOOL);
var_Create (mp, "autoscale", VLC_VAR_BOOL);
var_SetBool (mp, "autoscale", true);
var_Create (mp, "scale", VLC_VAR_FLOAT);
var_SetFloat (mp, "scale", 1.);
var_Create (mp, "aspect-ratio", VLC_VAR_STRING);
var_Create (mp, "crop", VLC_VAR_STRING);
var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
var_Create (mp, "marq-marquee", VLC_VAR_STRING);
var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-refresh", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-size", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "marq-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-file", VLC_VAR_STRING);
var_Create (mp, "logo-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-delay", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-repeat", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-opacity", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "logo-position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "contrast", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
var_Create (mp, "brightness", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
var_Create (mp, "hue", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "saturation", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
var_Create (mp, "gamma", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT);
/* Audio */
var_Create (mp, "aout", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Create (mp, "mute", VLC_VAR_BOOL);
var_Create (mp, "volume", VLC_VAR_FLOAT);
var_Create (mp, "corks", VLC_VAR_INTEGER);
var_Create (mp, "amem-data", VLC_VAR_ADDRESS);
var_Create (mp, "amem-setup", VLC_VAR_ADDRESS);
var_Create (mp, "amem-cleanup", VLC_VAR_ADDRESS);
var_Create (mp, "amem-play", VLC_VAR_ADDRESS);
var_Create (mp, "amem-pause", VLC_VAR_ADDRESS);
var_Create (mp, "amem-resume", VLC_VAR_ADDRESS);
var_Create (mp, "amem-flush", VLC_VAR_ADDRESS);
var_Create (mp, "amem-drain", VLC_VAR_ADDRESS);
var_Create (mp, "amem-set-volume", VLC_VAR_ADDRESS);
var_Create (mp, "amem-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
var_Create (mp, "amem-rate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
var_Create (mp, "amem-channels", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
mp->p_md = NULL;
mp->state = libvlc_NothingSpecial;
mp->p_libvlc_instance = instance;
mp->input.p_thread = NULL;
mp->input.p_resource = input_resource_New(VLC_OBJECT(mp));
if (unlikely(mp->input.p_resource == NULL))
{
vlc_object_release(mp);
return NULL;
}
vlc_mutex_init (&mp->input.lock);
mp->i_refcount = 1;
mp->p_event_manager = libvlc_event_manager_new(mp, instance);
if (unlikely(mp->p_event_manager == NULL))
{
input_resource_Release(mp->input.p_resource);
vlc_object_release(mp);
return NULL;
}
vlc_mutex_init(&mp->object_lock);
register_event(mp, NothingSpecial);
register_event(mp, Opening);
register_event(mp, Buffering);
register_event(mp, Playing);
register_event(mp, Paused);
register_event(mp, Stopped);
register_event(mp, Forward);
register_event(mp, Backward);
register_event(mp, EndReached);
register_event(mp, EncounteredError);
register_event(mp, SeekableChanged);
register_event(mp, PositionChanged);
register_event(mp, TimeChanged);
register_event(mp, LengthChanged);
register_event(mp, TitleChanged);
register_event(mp, PausableChanged);
register_event(mp, Vout);
/* Snapshot initialization */
register_event(mp, SnapshotTaken);
register_event(mp, MediaChanged);
/* Attach a var callback to the global object to provide the glue between
* vout_thread that generates the event and media_player that re-emits it
* with its own event manager
*
* FIXME: It's unclear why we want to put this in public API, and why we
* want to expose it in such a limiting and ugly way.
*/
var_AddCallback(mp->p_libvlc, "snapshot-file", snapshot_was_taken, mp);
libvlc_retain(instance);
return mp;
}
/**************************************************************************
* Create a Media Instance object with a media descriptor.
**************************************************************************/
libvlc_media_player_t *
libvlc_media_player_new_from_media( libvlc_media_t * p_md )
{
libvlc_media_player_t * p_mi;
p_mi = libvlc_media_player_new( p_md->p_libvlc_instance );
if( !p_mi )
return NULL;
libvlc_media_retain( p_md );
p_mi->p_md = p_md;
return p_mi;
}
/**************************************************************************
* Destroy a Media Instance object (libvlc internal)
*
* Warning: No lock held here, but hey, this is internal. Caller must lock.
**************************************************************************/
static void libvlc_media_player_destroy( libvlc_media_player_t *p_mi )
{
assert( p_mi );
/* Detach Callback from the main libvlc object */
var_DelCallback( p_mi->p_libvlc,
"snapshot-file", snapshot_was_taken, p_mi );
/* No need for lock_input() because no other threads knows us anymore */
if( p_mi->input.p_thread )
release_input_thread(p_mi, true);
input_resource_Terminate( p_mi->input.p_resource );
input_resource_Release( p_mi->input.p_resource );
vlc_mutex_destroy( &p_mi->input.lock );
libvlc_event_manager_release( p_mi->p_event_manager );
libvlc_media_release( p_mi->p_md );
vlc_mutex_destroy( &p_mi->object_lock );
libvlc_instance_t *instance = p_mi->p_libvlc_instance;
vlc_object_release( p_mi );
libvlc_release(instance);
}
/**************************************************************************
* Release a Media Instance object.
*
* Function does the locking.
**************************************************************************/
void libvlc_media_player_release( libvlc_media_player_t *p_mi )
{
bool destroy;
assert( p_mi );
lock(p_mi);
destroy = !--p_mi->i_refcount;
unlock(p_mi);
if( destroy )
libvlc_media_player_destroy( p_mi );
}
/**************************************************************************
* Retain a Media Instance object.
*
* Caller must hold the lock.
**************************************************************************/
void libvlc_media_player_retain( libvlc_media_player_t *p_mi )
{
assert( p_mi );
lock(p_mi);
p_mi->i_refcount++;
unlock(p_mi);
}
/**************************************************************************
* Set the Media descriptor associated with the instance.
*
* Enter without lock -- function will lock the object.
**************************************************************************/
void libvlc_media_player_set_media(
libvlc_media_player_t *p_mi,
libvlc_media_t *p_md )
{
lock_input(p_mi);
/* FIXME I am not sure if it is a user request or on die(eof/error)
* request here */
release_input_thread( p_mi,
p_mi->input.p_thread &&
!p_mi->input.p_thread->b_eof &&
!p_mi->input.p_thread->b_error );
lock( p_mi );
set_state( p_mi, libvlc_NothingSpecial, true );
unlock_input( p_mi );
libvlc_media_release( p_mi->p_md );
if( !p_md )
{
p_mi->p_md = NULL;
unlock(p_mi);
return; /* It is ok to pass a NULL md */
}
libvlc_media_retain( p_md );
p_mi->p_md = p_md;
/* The policy here is to ignore that we were created using a different
* libvlc_instance, because we don't really care */
p_mi->p_libvlc_instance = p_md->p_libvlc_instance;
unlock(p_mi);
/* Send an event for the newly available media */
libvlc_event_t event;
event.type = libvlc_MediaPlayerMediaChanged;
event.u.media_player_media_changed.new_media = p_md;
libvlc_event_send( p_mi->p_event_manager, &event );
}
/**************************************************************************
* Get the Media descriptor associated with the instance.
**************************************************************************/
libvlc_media_t *
libvlc_media_player_get_media( libvlc_media_player_t *p_mi )
{
libvlc_media_t *p_m;
lock(p_mi);
p_m = p_mi->p_md;
if( p_m )
libvlc_media_retain( p_mi->p_md );
unlock(p_mi);
return p_mi->p_md;
}
/**************************************************************************
* Get the event Manager.
**************************************************************************/
libvlc_event_manager_t *
libvlc_media_player_event_manager( libvlc_media_player_t *p_mi )
{
return p_mi->p_event_manager;
}
/**************************************************************************
* Tell media player to start playing.
**************************************************************************/
int libvlc_media_player_play( libvlc_media_player_t *p_mi )
{
lock_input( p_mi );
input_thread_t *p_input_thread = p_mi->input.p_thread;
if( p_input_thread )
{
/* A thread already exists, send it a play message */
input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
unlock_input( p_mi );
return 0;
}
/* Ignore previous exception */
lock(p_mi);
if( !p_mi->p_md )
{
unlock(p_mi);
unlock_input( p_mi );
libvlc_printerr( "No associated media descriptor" );
return -1;
}
p_input_thread = input_Create( p_mi, p_mi->p_md->p_input_item, NULL,
p_mi->input.p_resource );
unlock(p_mi);
if( !p_input_thread )
{
unlock_input(p_mi);
libvlc_printerr( "Not enough memory" );
return -1;
}
var_AddCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
var_AddCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
var_AddCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
if( input_Start( p_input_thread ) )
{
unlock_input(p_mi);
var_DelCallback( p_input_thread, "intf-event", input_event_changed, p_mi );
var_DelCallback( p_input_thread, "can-pause", input_pausable_changed, p_mi );
var_DelCallback( p_input_thread, "can-seek", input_seekable_changed, p_mi );
vlc_object_release( p_input_thread );
libvlc_printerr( "Input initialization failure" );
return -1;
}
p_mi->input.p_thread = p_input_thread;
unlock_input(p_mi);
return 0;
}
void libvlc_media_player_set_pause( libvlc_media_player_t *p_mi, int paused )
{
input_thread_t * p_input_thread = libvlc_get_input_thread( p_mi );
if( !p_input_thread )
return;
libvlc_state_t state = libvlc_media_player_get_state( p_mi );
if( state == libvlc_Playing || state == libvlc_Buffering )
{
if( paused )
{
if( libvlc_media_player_can_pause( p_mi ) )
input_Control( p_input_thread, INPUT_SET_STATE, PAUSE_S );
else
libvlc_media_player_stop( p_mi );
}
}
else
{
if( !paused )
input_Control( p_input_thread, INPUT_SET_STATE, PLAYING_S );
}
vlc_object_release( p_input_thread );
}
/**************************************************************************
* Toggle pause.
**************************************************************************/
void libvlc_media_player_pause( libvlc_media_player_t *p_mi )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mi );
bool playing = (state == libvlc_Playing || state == libvlc_Buffering);
libvlc_media_player_set_pause( p_mi, playing );
}
/**************************************************************************
* Tells whether the media player is currently playing.
*
* Enter with lock held.
**************************************************************************/
int libvlc_media_player_is_playing( libvlc_media_player_t *p_mi )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mi );
return (libvlc_Playing == state) || (libvlc_Buffering == state);
}
/**************************************************************************
* Stop playing.
**************************************************************************/
void libvlc_media_player_stop( libvlc_media_player_t *p_mi )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mi );
lock_input(p_mi);
release_input_thread( p_mi, true ); /* This will stop the input thread */
/* Force to go to stopped state, in case we were in Ended, or Error
* state. */
if( state != libvlc_Stopped )
{
set_state( p_mi, libvlc_Stopped, false );
/* Construct and send the event */
libvlc_event_t event;
event.type = libvlc_MediaPlayerStopped;
libvlc_event_send( p_mi->p_event_manager, &event );
}
input_resource_Terminate( p_mi->input.p_resource );
unlock_input(p_mi);
}
void libvlc_video_set_callbacks( libvlc_media_player_t *mp,
void *(*lock_cb) (void *, void **),
void (*unlock_cb) (void *, void *, void *const *),
void (*display_cb) (void *, void *),
void *opaque )
{
var_SetAddress( mp, "vmem-lock", lock_cb );
var_SetAddress( mp, "vmem-unlock", unlock_cb );
var_SetAddress( mp, "vmem-display", display_cb );
var_SetAddress( mp, "vmem-data", opaque );
var_SetString( mp, "vout", "vmem" );
}
void libvlc_video_set_format_callbacks( libvlc_media_player_t *mp,
libvlc_video_format_cb setup,
libvlc_video_cleanup_cb cleanup )
{
var_SetAddress( mp, "vmem-setup", setup );
var_SetAddress( mp, "vmem-cleanup", cleanup );
}
void libvlc_video_set_format( libvlc_media_player_t *mp, const char *chroma,
unsigned width, unsigned height, unsigned pitch )
{
var_SetString( mp, "vmem-chroma", chroma );
var_SetInteger( mp, "vmem-width", width );
var_SetInteger( mp, "vmem-height", height );
var_SetInteger( mp, "vmem-pitch", pitch );
}
/**************************************************************************
* set_nsobject
**************************************************************************/
void libvlc_media_player_set_nsobject( libvlc_media_player_t *p_mi,
void * drawable )
{
assert (p_mi != NULL);
#ifdef __APPLE__
var_SetAddress (p_mi, "drawable-nsobject", drawable);
#else
(void) p_mi; (void)drawable;
#endif
}
/**************************************************************************
* get_nsobject
**************************************************************************/
void * libvlc_media_player_get_nsobject( libvlc_media_player_t *p_mi )
{
assert (p_mi != NULL);
#ifdef __APPLE__
return var_GetAddress (p_mi, "drawable-nsobject");
#else
return NULL;
#endif
}
/**************************************************************************
* set_agl
**************************************************************************/
void libvlc_media_player_set_agl( libvlc_media_player_t *p_mi,
uint32_t drawable )
{
#ifdef __APPLE__
var_SetInteger (p_mi, "drawable-agl", drawable);
#else
(void) p_mi; (void)drawable;
#endif
}
/**************************************************************************
* get_agl
**************************************************************************/
uint32_t libvlc_media_player_get_agl( libvlc_media_player_t *p_mi )
{
assert (p_mi != NULL);
#ifdef __APPLE__
return var_GetInteger (p_mi, "drawable-agl");
#else
return 0;
#endif
}
/**************************************************************************
* set_xwindow
**************************************************************************/
void libvlc_media_player_set_xwindow( libvlc_media_player_t *p_mi,
uint32_t drawable )
{
assert (p_mi != NULL);
var_SetString (p_mi, "vout", drawable ? "xid" : "any");
var_SetString (p_mi, "window", drawable ? "embed-xid,any" : "any");
var_SetInteger (p_mi, "drawable-xid", drawable);
}
/**************************************************************************
* get_xwindow
**************************************************************************/
uint32_t libvlc_media_player_get_xwindow( libvlc_media_player_t *p_mi )
{
return var_GetInteger (p_mi, "drawable-xid");
}
/**************************************************************************
* set_hwnd
**************************************************************************/
void libvlc_media_player_set_hwnd( libvlc_media_player_t *p_mi,
void *drawable )
{
assert (p_mi != NULL);
#if defined (WIN32) || defined (__OS2__)
var_SetString (p_mi, "window",
(drawable != NULL) ? "embed-hwnd,any" : "");
var_SetInteger (p_mi, "drawable-hwnd", (uintptr_t)drawable);
#else
(void) p_mi; (void) drawable;
#endif
}
/**************************************************************************
* get_hwnd
**************************************************************************/
void *libvlc_media_player_get_hwnd( libvlc_media_player_t *p_mi )
{
assert (p_mi != NULL);
#if defined (WIN32) || defined (__OS2__)
return (void *)(uintptr_t)var_GetInteger (p_mi, "drawable-hwnd");
#else
return NULL;
#endif
}
void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
libvlc_audio_play_cb play_cb,
libvlc_audio_pause_cb pause_cb,
libvlc_audio_resume_cb resume_cb,
libvlc_audio_flush_cb flush_cb,
libvlc_audio_drain_cb drain_cb,
void *opaque )
{
var_SetAddress( mp, "amem-play", play_cb );
var_SetAddress( mp, "amem-pause", pause_cb );
var_SetAddress( mp, "amem-resume", resume_cb );
var_SetAddress( mp, "amem-flush", flush_cb );
var_SetAddress( mp, "amem-drain", drain_cb );
var_SetAddress( mp, "amem-data", opaque );
var_SetString( mp, "aout", "amem,none" );
}
void libvlc_audio_set_volume_callback( libvlc_media_player_t *mp,
libvlc_audio_set_volume_cb cb )
{
var_SetAddress( mp, "amem-set-volume", cb );
}
void libvlc_audio_set_format_callbacks( libvlc_media_player_t *mp,
libvlc_audio_setup_cb setup,
libvlc_audio_cleanup_cb cleanup )
{
var_SetAddress( mp, "amem-setup", setup );
var_SetAddress( mp, "amem-cleanup", cleanup );
}
void libvlc_audio_set_format( libvlc_media_player_t *mp, const char *format,
unsigned rate, unsigned channels )
{
var_SetString( mp, "amem-format", format );
var_SetInteger( mp, "amem-rate", rate );
var_SetInteger( mp, "amem-channels", channels );
}
/**************************************************************************
* Getters for stream information
**************************************************************************/
libvlc_time_t libvlc_media_player_get_length(
libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread;
libvlc_time_t i_time;
p_input_thread = libvlc_get_input_thread ( p_mi );