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, p_instance );
129 if( unlikely(p_instance->libvlc_vlm.p_event_manager == NULL) )
131 libvlc_event_manager_register_event_type(
132 p_instance->libvlc_vlm.p_event_manager,
133 libvlc_VlmMediaAdded );
134 libvlc_event_manager_register_event_type(
135 p_instance->libvlc_vlm.p_event_manager,
136 libvlc_VlmMediaRemoved );
137 libvlc_event_manager_register_event_type(
138 p_instance->libvlc_vlm.p_event_manager,
139 libvlc_VlmMediaChanged );
140 libvlc_event_manager_register_event_type(
141 p_instance->libvlc_vlm.p_event_manager,
142 libvlc_VlmMediaInstanceStarted );
143 libvlc_event_manager_register_event_type(
144 p_instance->libvlc_vlm.p_event_manager,
145 libvlc_VlmMediaInstanceStopped );
146 libvlc_event_manager_register_event_type(
147 p_instance->libvlc_vlm.p_event_manager,
148 libvlc_VlmMediaInstanceStatusInit );
149 libvlc_event_manager_register_event_type(
150 p_instance->libvlc_vlm.p_event_manager,
151 libvlc_VlmMediaInstanceStatusOpening );
152 libvlc_event_manager_register_event_type(
153 p_instance->libvlc_vlm.p_event_manager,
154 libvlc_VlmMediaInstanceStatusPlaying );
155 libvlc_event_manager_register_event_type(
156 p_instance->libvlc_vlm.p_event_manager,
157 libvlc_VlmMediaInstanceStatusPause );
158 libvlc_event_manager_register_event_type(
159 p_instance->libvlc_vlm.p_event_manager,
160 libvlc_VlmMediaInstanceStatusEnd );
161 libvlc_event_manager_register_event_type(
162 p_instance->libvlc_vlm.p_event_manager,
163 libvlc_VlmMediaInstanceStatusError );
166 if( !p_instance->libvlc_vlm.p_vlm )
168 p_instance->libvlc_vlm.p_vlm = vlm_New( p_instance->p_libvlc_int );
169 if( !p_instance->libvlc_vlm.p_vlm )
171 libvlc_exception_raise( p_exception );
172 libvlc_printerr( "VLM not supported or out of memory" );
175 var_AddCallback( (vlc_object_t *)p_instance->libvlc_vlm.p_vlm,
176 "intf-event", VlmEvent,
177 p_instance->libvlc_vlm.p_event_manager );
178 p_instance->libvlc_vlm.pf_release = libvlc_vlm_release_internal;
184 void libvlc_vlm_release( libvlc_instance_t *p_instance,
185 libvlc_exception_t *p_exception)
187 VLC_UNUSED(p_exception);
188 libvlc_vlm_release_internal( p_instance );
191 #define VLM_RET(p,ret) do { \
192 if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
193 (p) = p_instance->libvlc_vlm.p_vlm; \
195 #define VLM(p) VLM_RET(p,)
197 static vlm_media_instance_t *
198 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
199 const char *psz_name, int i_minstance_idx,
200 libvlc_exception_t *p_exception )
203 vlm_media_instance_t **pp_minstance;
204 vlm_media_instance_t *p_minstance;
208 VLM_RET(p_vlm, NULL);
210 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
211 vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
214 libvlc_exception_raise( p_exception );
215 libvlc_printerr( "%s: media instances not found", psz_name );
219 if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
221 p_minstance = pp_minstance[i_minstance_idx];
222 TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
224 while( i_minstance > 0 )
225 vlm_media_instance_Delete( pp_minstance[--i_minstance] );
226 TAB_CLEAN( i_minstance, pp_minstance );
230 /* local function to be used in libvlc_vlm_show_media only */
231 static char* recurse_answer( vlm_message_t *p_answer, const char* psz_delim,
233 char* psz_childdelim = NULL;
234 char* psz_nametag = NULL;
235 char* psz_response = strdup( "" );
238 vlm_message_t *aw_child, **paw_child;
240 i_success = asprintf( &psz_childdelim, "%s\t", psz_delim);
242 /* starting with the children of root node */
243 if( i_success != -1 && p_answer->i_child )
245 paw_child = p_answer->child;
246 aw_child = *( paw_child );
247 /* Iterate over children */
248 for( i = 0; i < p_answer->i_child; i++ )
250 /* Spare comma if it is the last element */
252 if( i == (p_answer->i_child - 1) )
255 /* Append name of child node, if not in a list */
258 i_success = asprintf( &psz_response, "%s\"%s\": ",
259 psz_response, aw_child->psz_name );
260 if( i_success == -1 ) break;
263 /* If child node has children, */
264 if( aw_child->i_child )
266 /* If the parent node is a list (hence the child node is
267 * inside a list), create a property of its name as if it
268 * had a name value node
272 i_success = asprintf( &psz_nametag, "\"name\": \"%s\",%s",
273 aw_child->psz_name, psz_childdelim );
274 if( i_success == -1 ) break;
278 psz_nametag = strdup( "" );
280 /* If the child is a list itself, format it accordingly and
281 * recurse through the child's children, telling them that
282 * they are inside a list.
284 if( strcmp( aw_child->psz_name, "media" ) == 0 ||
285 strcmp( aw_child->psz_name, "inputs" ) == 0 ||
286 strcmp( aw_child->psz_name, "options" ) == 0 )
288 i_success = asprintf( &psz_response, "%s[%s%s%s]%c%s",
289 psz_response, psz_childdelim,
290 recurse_answer( aw_child,
292 psz_delim, c_comma, psz_delim );
293 if( i_success == -1 ) break;
295 /* Not a list, so format the child as a JSON object and
296 * recurse through the child's children
300 i_success = asprintf( &psz_response, "%s{%s%s%s%s}%c%s",
301 psz_response, psz_childdelim, psz_nametag,
302 recurse_answer( aw_child,
304 psz_delim, c_comma, psz_delim );
305 if( i_success == -1 ) break;
308 /* Otherwise - when no children are present - the node is a
309 * value node. So print the value string
313 /* If value is equivalent to NULL, print it as null */
314 if( aw_child->psz_value == NULL
315 || strcmp( aw_child->psz_value, "(null)" ) == 0 )
317 i_success = asprintf( &psz_response, "%snull%c%s",
318 psz_response, c_comma, psz_delim );
319 if( i_success == -1 )
322 /* Otherwise print the value in quotation marks */
325 i_success = asprintf( &psz_response, "%s\"%s\"%c%s",
326 psz_response, aw_child->psz_value,
327 c_comma, psz_delim );
328 if( i_success == -1 ) break;
331 /* getting next child */
333 aw_child = *( paw_child );
337 free( psz_childdelim );
338 if( i_success == -1 )
340 free( psz_response );
341 psz_response = strdup( "" );
346 const char* libvlc_vlm_show_media( libvlc_instance_t *p_instance,
347 const char *psz_name,
348 libvlc_exception_t *p_exception )
350 char *psz_message = NULL;
351 vlm_message_t *answer = NULL;
352 char *psz_response = NULL;
353 const char *psz_fmt = NULL;
354 const char *psz_delimiter = NULL;
358 VLM_RET(p_vlm, NULL);
362 if( asprintf( &psz_message, "show %s", psz_name ) == -1 )
364 libvlc_exception_raise( p_exception );
365 libvlc_printerr( "Not enough memory" );
369 vlm_ExecuteCommand( p_vlm, psz_message, &answer );
370 if( answer->psz_value )
372 libvlc_exception_raise( p_exception );
373 libvlc_printerr( "Unable to call show %s: %s",
374 psz_name, answer->psz_value );
376 else if ( answer->child )
377 { /* in case everything was requested */
378 if ( strcmp( psz_name, "" ) == 0 )
380 psz_fmt = "{\n\t%s\n}\n";
381 psz_delimiter = "\n\t";
387 psz_delimiter = "\n";
390 if( asprintf( &psz_response, psz_fmt,
391 recurse_answer( answer, psz_delimiter, i_list ) ) == -1 )
393 libvlc_exception_raise( p_exception );
394 libvlc_printerr( "Out of memory" );
398 return( psz_response );
402 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
403 const char *psz_name,
404 const char *psz_input,
405 const char *psz_output, int i_options,
406 const char * const *ppsz_options,
407 int b_enabled, int b_loop,
408 libvlc_exception_t *p_exception )
416 vlm_media_Init( &m );
417 m.psz_name = strdup( psz_name );
418 m.b_enabled = b_enabled;
420 m.broadcast.b_loop = b_loop;
422 TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
424 m.psz_output = strdup( psz_output );
425 for( n = 0; n < i_options; n++ )
426 TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
428 n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
429 vlm_media_Clean( &m );
432 libvlc_exception_raise( p_exception );
433 libvlc_printerr( "Media %s creation failed", psz_name );
437 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
438 const char *psz_input, int i_options,
439 const char * const *ppsz_options, int b_enabled,
440 const char *psz_mux, libvlc_exception_t *p_exception )
448 vlm_media_Init( &m );
449 m.psz_name = strdup( psz_name );
450 m.b_enabled = b_enabled;
452 m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
454 TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
455 for( n = 0; n < i_options; n++ )
456 TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
458 n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
459 vlm_media_Clean( &m );
462 libvlc_exception_raise( p_exception );
463 libvlc_printerr( "Media %s creation failed", psz_name );
467 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
468 libvlc_exception_t *p_exception )
475 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
476 vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
478 libvlc_exception_raise( p_exception );
479 libvlc_printerr( "Unable to delete %s", psz_name );
483 #define VLM_CHANGE(psz_error, code ) do { \
484 vlm_media_t *p_media; \
488 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) || \
489 vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) { \
490 libvlc_exception_raise( p_exception ); \
491 libvlc_printerr( psz_error, psz_name ); \
494 if( !p_media ) goto error; \
498 if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) { \
499 vlm_media_Delete( p_media ); \
502 vlm_media_Delete( p_media ); \
505 libvlc_exception_raise( p_exception ); \
506 libvlc_printerr( psz_error, psz_name ); \
509 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
510 const char *psz_name, int b_enabled,
511 libvlc_exception_t *p_exception )
513 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
514 VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
515 #undef VLM_CHANGE_CODE
518 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
519 int b_loop, libvlc_exception_t *p_exception )
521 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
522 VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
523 #undef VLM_CHANGE_CODE
526 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
527 const char *psz_mux, libvlc_exception_t *p_exception )
529 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
530 free( p_media->vod.psz_mux ); \
531 p_media->vod.psz_mux = psz_mux \
532 ? strdup( psz_mux ) : NULL; \
534 VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
535 #undef VLM_CHANGE_CODE
538 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
539 const char *psz_name, const char *psz_output,
540 libvlc_exception_t *p_exception )
542 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
543 p_media->psz_output = strdup( psz_output ); }
544 VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
545 #undef VLM_CHANGE_CODE
548 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
549 const char *psz_name, const char *psz_input,
550 libvlc_exception_t *p_exception )
552 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
553 free( p_media->ppsz_input[--p_media->i_input] );\
554 TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
555 strdup(psz_input) ); }
556 VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
557 #undef VLM_CHANGE_CODE
560 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
561 const char *psz_name, const char *psz_input,
562 libvlc_exception_t *p_exception )
564 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
565 strdup(psz_input) ); }
566 VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
567 #undef VLM_CHANGE_CODE
570 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
571 const char *psz_name, const char *psz_input,
572 const char *psz_output, int i_options,
573 const char * const *ppsz_options, int b_enabled,
574 int b_loop, libvlc_exception_t *p_exception )
576 #define VLM_CHANGE_CODE { int n; \
577 p_media->b_enabled = b_enabled; \
578 p_media->broadcast.b_loop = b_loop; \
579 while( p_media->i_input > 0 ) \
580 free( p_media->ppsz_input[--p_media->i_input] ); \
582 TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
583 free( p_media->psz_output ); \
584 p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
585 while( p_media->i_option > 0 ) \
586 free( p_media->ppsz_option[--p_media->i_option] ); \
587 for( n = 0; n < i_options; n++ ) \
588 TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
589 strdup(ppsz_options[n]) ); \
591 VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
592 #undef VLM_CHANGE_CODE
595 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
596 const char *psz_name,
597 libvlc_exception_t *p_exception )
604 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
605 vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
607 libvlc_exception_raise( p_exception );
608 libvlc_printerr( "Unable to play %s", psz_name );
612 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
613 const char *psz_name,
614 libvlc_exception_t *p_exception )
621 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
622 vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
624 libvlc_exception_raise( p_exception );
625 libvlc_printerr( "Unable to stop %s", psz_name );
629 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
630 const char *psz_name,
631 libvlc_exception_t *p_exception )
638 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
639 vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
641 libvlc_exception_raise( p_exception );
642 libvlc_printerr( "Unable to pause %s", psz_name );
646 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
647 const char *psz_name, float f_percentage,
648 libvlc_exception_t *p_exception )
655 if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
656 vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
659 libvlc_exception_raise( p_exception );
660 libvlc_printerr( "Unable to seek %s to %f%%", psz_name, f_percentage );
664 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
665 const char *psz_name,
667 libvlc_exception_t *p_exception )
669 vlm_media_instance_t *p_mi;
672 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
673 i_instance, p_exception );
676 result = p_mi->d_position;
677 vlm_media_instance_Delete( p_mi );
682 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
683 const char *psz_name, int i_instance,
684 libvlc_exception_t *p_exception )
686 vlm_media_instance_t *p_mi;
689 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
690 i_instance, p_exception );
693 result = p_mi->i_time;
694 vlm_media_instance_Delete( p_mi );
699 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
700 const char *psz_name,
702 libvlc_exception_t *p_exception )
704 vlm_media_instance_t *p_mi;
707 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
708 i_instance, p_exception );
711 result = p_mi->i_length;
712 vlm_media_instance_Delete( p_mi );
717 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
718 const char *psz_name, int i_instance,
719 libvlc_exception_t *p_exception )
721 vlm_media_instance_t *p_mi;
724 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
725 i_instance, p_exception );
728 result = p_mi->i_rate;
729 vlm_media_instance_Delete( p_mi );
734 int libvlc_vlm_get_media_instance_title( libvlc_instance_t *p_instance,
735 const char *psz_name, int i_instance,
736 libvlc_exception_t *p_exception )
738 vlm_media_instance_t *p_mi;
740 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
741 i_instance, p_exception );
743 vlm_media_instance_Delete( p_mi );
744 return p_mi ? 0 : -1;
747 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
748 const char *psz_name,
750 libvlc_exception_t *p_exception )
752 vlm_media_instance_t *p_mi;
754 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
755 i_instance, p_exception );
757 vlm_media_instance_Delete( p_mi );
758 return p_mi ? 0 : -1;
761 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
762 const char *psz_name,
764 libvlc_exception_t *p_exception )
766 vlm_media_instance_t *p_mi;
768 p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
769 i_instance, p_exception );
771 vlm_media_instance_Delete( p_mi );
772 return p_mi ? 0 : -1;
775 libvlc_event_manager_t * libvlc_vlm_get_event_manager( libvlc_instance_t *p_instance,
776 libvlc_exception_t *p_exception )
779 VLM_RET( p_vlm, NULL);
780 return p_instance->libvlc_vlm.p_event_manager;