1 /*****************************************************************************
2 * vlm.c: libvlc new API VLM handling functions
3 *****************************************************************************
4 * Copyright (C) 2005 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 *****************************************************************************/
28 #include <vlc/libvlc.h>
29 #include <vlc/libvlc_vlm.h>
31 #include <vlc_input.h>
35 #include "libvlc_internal.h"
37 /* VLM events callback. Transmit to libvlc */
38 static int VlmEvent( vlc_object_t *p_this, const char * name,
39 vlc_value_t old_val, vlc_value_t newval, void *param )
44 vlm_event_t *event = (vlm_event_t*)newval.p_address;
45 libvlc_event_manager_t *p_event_manager = (libvlc_event_manager_t *) param;
46 libvlc_event_t libvlc_event;
48 libvlc_event.u.vlm_media_event.psz_instance_name = NULL;
49 libvlc_event.u.vlm_media_event.psz_media_name = event->psz_name;
51 switch( event->i_type )
53 case VLM_EVENT_MEDIA_ADDED:
54 libvlc_event.type = libvlc_VlmMediaAdded;
56 case VLM_EVENT_MEDIA_REMOVED:
57 libvlc_event.type = libvlc_VlmMediaRemoved;
59 case VLM_EVENT_MEDIA_CHANGED:
60 libvlc_event.type = libvlc_VlmMediaChanged;
62 case VLM_EVENT_MEDIA_INSTANCE_STARTED:
63 libvlc_event.type = libvlc_VlmMediaInstanceStarted;
65 case VLM_EVENT_MEDIA_INSTANCE_STOPPED:
66 libvlc_event.type = libvlc_VlmMediaInstanceStopped;
68 case VLM_EVENT_MEDIA_INSTANCE_STATE:
69 libvlc_event.u.vlm_media_event.psz_instance_name =
70 event->psz_instance_name;
71 switch( event->input_state )
74 libvlc_event.type = libvlc_VlmMediaInstanceStatusInit;
78 libvlc_VlmMediaInstanceStatusOpening;
82 libvlc_VlmMediaInstanceStatusPlaying;
85 libvlc_event.type = libvlc_VlmMediaInstanceStatusPause;
88 libvlc_event.type = libvlc_VlmMediaInstanceStatusEnd;
91 libvlc_event.type = libvlc_VlmMediaInstanceStatusError;
100 libvlc_event_send( p_event_manager, &libvlc_event );
104 static void libvlc_vlm_release_internal( libvlc_instance_t *p_instance )
106 vlm_t *p_vlm = p_instance->libvlc_vlm.p_vlm;
107 if( !p_instance->libvlc_vlm.p_vlm )
109 /* We need to remove medias in order to receive events */
110 vlm_Control( p_vlm, VLM_CLEAR_MEDIAS );
111 vlm_Control( p_vlm, VLM_CLEAR_SCHEDULES );
113 var_DelCallback( (vlc_object_t *)p_vlm, "intf-event", VlmEvent,
114 p_instance->libvlc_vlm.p_event_manager );
115 p_instance->libvlc_vlm.pf_release = NULL;
116 libvlc_event_manager_release( p_instance->libvlc_vlm.p_event_manager );
117 p_instance->libvlc_vlm.p_event_manager = NULL;
119 p_instance->libvlc_vlm.p_vlm = NULL;
122 static int libvlc_vlm_init( libvlc_instance_t *p_instance,
123 libvlc_exception_t *p_exception )
125 if( !p_instance->libvlc_vlm.p_event_manager )
127 p_instance->libvlc_vlm.p_event_manager =
128 libvlc_event_manager_new( p_instance->libvlc_vlm.p_vlm,
129 p_instance, p_exception );
130 libvlc_event_manager_register_event_type(
131 p_instance->libvlc_vlm.p_event_manager,
132 libvlc_VlmMediaAdded, NULL );
133 libvlc_event_manager_register_event_type(
134 p_instance->libvlc_vlm.p_event_manager,
135 libvlc_VlmMediaRemoved, NULL );
136 libvlc_event_manager_register_event_type(
137 p_instance->libvlc_vlm.p_event_manager,
138 libvlc_VlmMediaChanged, NULL );
139 libvlc_event_manager_register_event_type(
140 p_instance->libvlc_vlm.p_event_manager,
141 libvlc_VlmMediaInstanceStarted, NULL );
142 libvlc_event_manager_register_event_type(
143 p_instance->libvlc_vlm.p_event_manager,
144 libvlc_VlmMediaInstanceStopped, NULL );
145 libvlc_event_manager_register_event_type(
146 p_instance->libvlc_vlm.p_event_manager,
147 libvlc_VlmMediaInstanceStatusInit, NULL );
148 libvlc_event_manager_register_event_type(
149 p_instance->libvlc_vlm.p_event_manager,
150 libvlc_VlmMediaInstanceStatusOpening, NULL );
151 libvlc_event_manager_register_event_type(
152 p_instance->libvlc_vlm.p_event_manager,
153 libvlc_VlmMediaInstanceStatusPlaying, NULL );
154 libvlc_event_manager_register_event_type(
155 p_instance->libvlc_vlm.p_event_manager,
156 libvlc_VlmMediaInstanceStatusPause, NULL );
157 libvlc_event_manager_register_event_type(
158 p_instance->libvlc_vlm.p_event_manager,
159 libvlc_VlmMediaInstanceStatusEnd, NULL );
160 libvlc_event_manager_register_event_type(
161 p_instance->libvlc_vlm.p_event_manager,
162 libvlc_VlmMediaInstanceStatusError, NULL );
165 if( !p_instance->libvlc_vlm.p_vlm )
167 p_instance->libvlc_vlm.p_vlm = vlm_New( p_instance->p_libvlc_int );
168 if( !p_instance->libvlc_vlm.p_vlm )
170 libvlc_exception_raise( p_exception );
171 libvlc_printerr( "VLM not supported or out of memory" );
174 var_AddCallback( (vlc_object_t *)p_instance->libvlc_vlm.p_vlm,
175 "intf-event", VlmEvent,
176 p_instance->libvlc_vlm.p_event_manager );
177 p_instance->libvlc_vlm.pf_release = libvlc_vlm_release_internal;
183 void libvlc_vlm_release( libvlc_instance_t *p_instance,
184 libvlc_exception_t *p_exception)
186 VLC_UNUSED(p_exception);
187 libvlc_vlm_release_internal( p_instance );
190 #define VLM_RET(p,ret) do { \
191 if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
192 (p) = p_instance->libvlc_vlm.p_vlm; \
194 #define VLM(p) VLM_RET(p,)
196 static vlm_media_instance_t *
197 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
198 const char *psz_name, int i_minstance_idx,
199 libvlc_exception_t *p_exception )
202 vlm_media_instance_t **pp_minstance;
203 vlm_media_instance_t *p_minstance;
207 VLM_RET(p_vlm, NULL);
209 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
210 vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
213 libvlc_exception_raise( p_exception );
214 libvlc_printerr( "%s: media instances not found", psz_name );
218 if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
220 p_minstance = pp_minstance[i_minstance_idx];
221 TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
223 while( i_minstance > 0 )
224 vlm_media_instance_Delete( pp_minstance[--i_minstance] );
225 TAB_CLEAN( i_minstance, pp_minstance );
229 /* local function to be used in libvlc_vlm_show_media only */
230 static char* recurse_answer( vlm_message_t *p_answer, const char* psz_delim,
232 char* psz_childdelim = NULL;
233 char* psz_nametag = NULL;
234 char* psz_response = strdup( "" );
237 vlm_message_t *aw_child, **paw_child;
239 i_success = asprintf( &psz_childdelim, "%s\t", psz_delim);
241 /* starting with the children of root node */
242 if( i_success != -1 && p_answer->i_child )
244 paw_child = p_answer->child;
245 aw_child = *( paw_child );
246 /* Iterate over children */
247 for( i = 0; i < p_answer->i_child; i++ )
249 /* Spare comma if it is the last element */
251 if( i == (p_answer->i_child - 1) )
254 /* Append name of child node, if not in a list */
257 i_success = asprintf( &psz_response, "%s\"%s\": ",
258 psz_response, aw_child->psz_name );
259 if( i_success == -1 ) break;
262 /* If child node has children, */
263 if( aw_child->i_child )
265 /* If the parent node is a list (hence the child node is
266 * inside a list), create a property of its name as if it
267 * had a name value node
271 i_success = asprintf( &psz_nametag, "\"name\": \"%s\",%s",
272 aw_child->psz_name, psz_childdelim );
273 if( i_success == -1 ) break;
277 psz_nametag = strdup( "" );
279 /* If the child is a list itself, format it accordingly and
280 * recurse through the child's children, telling them that
281 * they are inside a list.
283 if( strcmp( aw_child->psz_name, "media" ) == 0 ||
284 strcmp( aw_child->psz_name, "inputs" ) == 0 ||
285 strcmp( aw_child->psz_name, "options" ) == 0 )
287 i_success = asprintf( &psz_response, "%s[%s%s%s]%c%s",
288 psz_response, psz_childdelim,
289 recurse_answer( aw_child,
291 psz_delim, c_comma, psz_delim );
292 if( i_success == -1 ) break;
294 /* Not a list, so format the child as a JSON object and
295 * recurse through the child's children
299 i_success = asprintf( &psz_response, "%s{%s%s%s%s}%c%s",
300 psz_response, psz_childdelim, psz_nametag,
301 recurse_answer( aw_child,
303 psz_delim, c_comma, psz_delim );
304 if( i_success == -1 ) break;
307 /* Otherwise - when no children are present - the node is a
308 * value node. So print the value string
312 /* If value is equivalent to NULL, print it as null */
313 if( aw_child->psz_value == NULL
314 || strcmp( aw_child->psz_value, "(null)" ) == 0 )
316 i_success = asprintf( &psz_response, "%snull%c%s",
317 psz_response, c_comma, psz_delim );
318 if( i_success == -1 )
321 /* Otherwise print the value in quotation marks */
324 i_success = asprintf( &psz_response, "%s\"%s\"%c%s",
325 psz_response, aw_child->psz_value,
326 c_comma, psz_delim );
327 if( i_success == -1 ) break;
330 /* getting next child */
332 aw_child = *( paw_child );
336 free( psz_childdelim );
337 if( i_success == -1 )
339 free( psz_response );
340 psz_response = strdup( "" );
345 const char* libvlc_vlm_show_media( libvlc_instance_t *p_instance,
346 const char *psz_name,
347 libvlc_exception_t *p_exception )
349 char *psz_message = NULL;
350 vlm_message_t *answer = NULL;
351 char *psz_response = NULL;
352 const char *psz_fmt = NULL;
353 const char *psz_delimiter = NULL;
357 VLM_RET(p_vlm, NULL);
361 if( asprintf( &psz_message, "show %s", psz_name ) == -1 )
363 libvlc_exception_raise( p_exception );
364 libvlc_printerr( "Not enough memory" );
368 vlm_ExecuteCommand( p_vlm, psz_message, &answer );
369 if( answer->psz_value )
371 libvlc_exception_raise( p_exception );
372 libvlc_printerr( "Unable to call show %s: %s",
373 psz_name, answer->psz_value );
375 else if ( answer->child )
376 { /* in case everything was requested */
377 if ( strcmp( psz_name, "" ) == 0 )
379 psz_fmt = "{\n\t%s\n}\n";
380 psz_delimiter = "\n\t";
386 psz_delimiter = "\n";
389 if( asprintf( &psz_response, psz_fmt,
390 recurse_answer( answer, psz_delimiter, i_list ) ) == -1 )
392 libvlc_exception_raise( p_exception );
393 libvlc_printerr( "Out of memory" );
397 return( psz_response );
401 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
402 const char *psz_name,
403 const char *psz_input,
404 const char *psz_output, int i_options,
405 const char * const *ppsz_options,
406 int b_enabled, int b_loop,
407 libvlc_exception_t *p_exception )
415 vlm_media_Init( &m );
416 m.psz_name = strdup( psz_name );
417 m.b_enabled = b_enabled;
419 m.broadcast.b_loop = b_loop;
421 TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
423 m.psz_output = strdup( psz_output );
424 for( n = 0; n < i_options; n++ )
425 TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
427 n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
428 vlm_media_Clean( &m );
431 libvlc_exception_raise( p_exception );
432 libvlc_printerr( "Media %s creation failed", psz_name );
436 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
437 const char *psz_input, int i_options,
438 const char * const *ppsz_options, int b_enabled,
439 const char *psz_mux, libvlc_exception_t *p_exception )
447 vlm_media_Init( &m );
448 m.psz_name = strdup( psz_name );
449 m.b_enabled = b_enabled;
451 m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
453 TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
454 for( n = 0; n < i_options; n++ )
455 TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
457 n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
458 vlm_media_Clean( &m );
461 libvlc_exception_raise( p_exception );
462 libvlc_printerr( "Media %s creation failed", psz_name );
466 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
467 libvlc_exception_t *p_exception )
474 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
475 vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
477 libvlc_exception_raise( p_exception );
478 libvlc_printerr( "Unable to delete %s", psz_name );
482 #define VLM_CHANGE(psz_error, code ) do { \
483 vlm_media_t *p_media; \
487 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) || \
488 vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) { \
489 libvlc_exception_raise( p_exception ); \
490 libvlc_printerr( psz_error, psz_name ); \
493 if( !p_media ) goto error; \
497 if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) { \
498 vlm_media_Delete( p_media ); \
501 vlm_media_Delete( p_media ); \
504 libvlc_exception_raise( p_exception ); \
505 libvlc_printerr( psz_error, psz_name ); \
508 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
509 const char *psz_name, int b_enabled,
510 libvlc_exception_t *p_exception )
512 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
513 VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
514 #undef VLM_CHANGE_CODE
517 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
518 int b_loop, libvlc_exception_t *p_exception )
520 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
521 VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
522 #undef VLM_CHANGE_CODE
525 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
526 const char *psz_mux, libvlc_exception_t *p_exception )
528 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
529 free( p_media->vod.psz_mux ); \
530 p_media->vod.psz_mux = psz_mux \
531 ? strdup( psz_mux ) : NULL; \
533 VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
534 #undef VLM_CHANGE_CODE
537 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
538 const char *psz_name, const char *psz_output,
539 libvlc_exception_t *p_exception )
541 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
542 p_media->psz_output = strdup( psz_output ); }
543 VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
544 #undef VLM_CHANGE_CODE
547 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
548 const char *psz_name, const char *psz_input,
549 libvlc_exception_t *p_exception )
551 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
552 free( p_media->ppsz_input[--p_media->i_input] );\
553 TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
554 strdup(psz_input) ); }
555 VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
556 #undef VLM_CHANGE_CODE
559 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
560 const char *psz_name, const char *psz_input,
561 libvlc_exception_t *p_exception )
563 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
564 strdup(psz_input) ); }
565 VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
566 #undef VLM_CHANGE_CODE
569 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
570 const char *psz_name, const char *psz_input,
571 const char *psz_output, int i_options,
572 const char * const *ppsz_options, int b_enabled,
573 int b_loop, libvlc_exception_t *p_exception )
575 #define VLM_CHANGE_CODE { int n; \
576 p_media->b_enabled = b_enabled; \
577 p_media->broadcast.b_loop = b_loop; \
578 while( p_media->i_input > 0 ) \
579 free( p_media->ppsz_input[--p_media->i_input] ); \
581 TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
582 free( p_media->psz_output ); \
583 p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
584 while( p_media->i_option > 0 ) \
585 free( p_media->ppsz_option[--p_media->i_option] ); \
586 for( n = 0; n < i_options; n++ ) \
587 TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
588 strdup(ppsz_options[n]) ); \
590 VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
591 #undef VLM_CHANGE_CODE
594 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
595 const char *psz_name,
596 libvlc_exception_t *p_exception )
603 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
604 vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
606 libvlc_exception_raise( p_exception );
607 libvlc_printerr( "Unable to play %s", psz_name );
611 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
612 const char *psz_name,
613 libvlc_exception_t *p_exception )
620 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
621 vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
623 libvlc_exception_raise( p_exception );
624 libvlc_printerr( "Unable to stop %s", psz_name );
628 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
629 const char *psz_name,
630 libvlc_exception_t *p_exception )
637 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
638 vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
640 libvlc_exception_raise( p_exception );
641 libvlc_printerr( "Unable to pause %s", psz_name );
645 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
646 const char *psz_name, float f_percentage,
647 libvlc_exception_t *p_exception )
654 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
655 vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
658 libvlc_exception_raise( p_exception );
659 libvlc_printerr( "Unable to seek %s to %f%%", psz_name, f_percentage );
663 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
664 const char *psz_name,
666 libvlc_exception_t *p_exception )
668 vlm_media_instance_t *p_mi;
671 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
672 i_instance, p_exception );
675 result = p_mi->d_position;
676 vlm_media_instance_Delete( p_mi );
681 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
682 const char *psz_name, int i_instance,
683 libvlc_exception_t *p_exception )
685 vlm_media_instance_t *p_mi;
688 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
689 i_instance, p_exception );
692 result = p_mi->i_time;
693 vlm_media_instance_Delete( p_mi );
698 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
699 const char *psz_name,
701 libvlc_exception_t *p_exception )
703 vlm_media_instance_t *p_mi;
706 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
707 i_instance, p_exception );
710 result = p_mi->i_length;
711 vlm_media_instance_Delete( p_mi );
716 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
717 const char *psz_name, int i_instance,
718 libvlc_exception_t *p_exception )
720 vlm_media_instance_t *p_mi;
723 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
724 i_instance, p_exception );
727 result = p_mi->i_rate;
728 vlm_media_instance_Delete( p_mi );
733 int libvlc_vlm_get_media_instance_title( libvlc_instance_t *p_instance,
734 const char *psz_name, int i_instance,
735 libvlc_exception_t *p_exception )
737 vlm_media_instance_t *p_mi;
739 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
740 i_instance, p_exception );
742 vlm_media_instance_Delete( p_mi );
743 return p_mi ? 0 : -1;
746 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
747 const char *psz_name,
749 libvlc_exception_t *p_exception )
751 vlm_media_instance_t *p_mi;
753 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
754 i_instance, p_exception );
756 vlm_media_instance_Delete( p_mi );
757 return p_mi ? 0 : -1;
760 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
761 const char *psz_name,
763 libvlc_exception_t *p_exception )
765 vlm_media_instance_t *p_mi;
767 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
768 i_instance, p_exception );
770 vlm_media_instance_Delete( p_mi );
771 return p_mi ? 0 : -1;
774 libvlc_event_manager_t * libvlc_vlm_get_event_manager( libvlc_instance_t *p_instance,
775 libvlc_exception_t *p_exception )
778 VLM_RET( p_vlm, NULL);
779 return p_instance->libvlc_vlm.p_event_manager;