1 /*****************************************************************************
2 * input_manager.cpp : Manage an input and interact with its GUI elements
3 ****************************************************************************
4 * Copyright (C) 2006-2008 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
8 * Ilkka Ollakka <ileoo@videolan.org>
9 * Jean-Baptiste <jb@videolan.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
30 #include "input_manager.hpp"
34 #include <QApplication>
38 static int ItemChanged( vlc_object_t *, const char *,
39 vlc_value_t, vlc_value_t, void * );
40 static int PLItemChanged( vlc_object_t *, const char *,
41 vlc_value_t, vlc_value_t, void * );
42 static int VolumeChanged( vlc_object_t *, const char *,
43 vlc_value_t, vlc_value_t, void * );
45 static int InputEvent( vlc_object_t *, const char *,
46 vlc_value_t, vlc_value_t, void * );
47 static int VbiEvent( vlc_object_t *, const char *,
48 vlc_value_t, vlc_value_t, void * );
51 /**********************************************************************
52 * InputManager implementation
53 **********************************************************************
54 * The Input Manager can be the main one around the playlist
55 * But can also be used for VLM dialog or similar
56 **********************************************************************/
58 InputManager::InputManager( QObject *parent, intf_thread_t *_p_intf) :
59 QObject( parent ), p_intf( _p_intf )
61 i_old_playing_status = END_S;
70 f_cache = -1.; /* impossible initial value, different from all */
73 InputManager::~InputManager()
78 /* Define the Input used.
79 Add the callbacks on input
80 p_input is held once here */
81 void InputManager::setInput( input_thread_t *_p_input )
85 if( p_input && !( p_input->b_dead || !vlc_object_alive (p_input) ) )
87 msg_Dbg( p_intf, "IM: Setting an input" );
88 vlc_object_hold( p_input );
89 emit statusChanged( PLAYING_S );
96 p_item = input_GetItem( p_input );
102 emit rateChanged( INPUT_RATE_DEFAULT );
106 /* delete Input if it ever existed.
107 Delete the callbacls on input
108 p_input is released once here */
109 void InputManager::delInput()
111 if( !p_input ) return;
112 msg_Dbg( p_intf, "IM: Deleting the input" );
115 i_old_playing_status = END_S;
123 vlc_object_release( p_input );
126 emit positionUpdated( -1.0, 0 ,0 );
127 emit rateChanged( INPUT_RATE_DEFAULT ); /* TODO: Do we want this ? */
128 emit nameChanged( "" );
129 emit chapterChanged( 0 );
130 emit titleChanged( 0 );
131 emit statusChanged( END_S );
133 emit teletextPossible( false );
134 emit AtoBchanged( false, false );
135 emit voutChanged( false );
136 emit voutListChanged( NULL, 0 );
138 /* Reset all InfoPanels but stats */
139 emit artChanged( NULL );
140 emit infoChanged( NULL );
141 emit currentMetaChanged( (input_item_t *)NULL );
143 emit encryptionChanged( false );
144 emit recordingStateChanged( false );
147 /* Convert the event from the callbacks in actions */
148 void InputManager::customEvent( QEvent *event )
150 int i_type = event->type();
151 IMEvent *ple = static_cast<IMEvent *>(event);
157 if( i_type != PositionUpdate_Type &&
158 i_type != StatisticsUpdate_Type &&
159 i_type != ItemChanged_Type )
160 msg_Dbg( p_intf, "New Event: type %i", i_type );
166 case PositionUpdate_Type:
169 case StatisticsUpdate_Type:
172 case ItemChanged_Type:
173 /* Ignore ItemChanged_Type event that does not apply to our input */
174 if( p_item == ple->p_item )
179 /* Update duration of file */
181 UpdateMeta( ple->p_item->i_id );
183 case ItemStateChanged_Type:
184 // TODO: Fusion with above state
187 // UpdateNavigation(); This shouldn't be useful now
188 // UpdateTeletext(); Same
190 case NameChanged_Type:
193 case MetaChanged_Type:
195 UpdateName(); /* Needed for NowPlaying */
196 UpdateArt(); /* Art is part of meta in the core */
198 case InfoChanged_Type:
201 case ItemTitleChanged_Type:
203 UpdateName(); /* Display the name of the Chapter, if exists */
205 case ItemRateChanged_Type:
208 case ItemEsChanged_Type:
210 // We don't do anything ES related. Why ?
212 case ItemTeletextChanged_Type:
215 case InterfaceVoutUpdate_Type:
218 case SynchroChanged_Type:
219 emit synchroChanged();
221 case CachingEvent_Type:
224 case BookmarksChanged_Type:
225 emit bookmarksChanged();
227 case InterfaceAoutUpdate_Type:
230 case RecordingEvent_Type:
233 case ProgramChanged_Type:
234 UpdateProgramEvent();
237 msg_Warn( p_intf, "This shouldn't happen: %i", i_type );
242 /* Add the callbacks on Input. Self explanatory */
243 inline void InputManager::addCallbacks()
245 var_AddCallback( p_input, "intf-event", InputEvent, this );
248 /* Delete the callbacks on Input. Self explanatory */
249 inline void InputManager::delCallbacks()
251 var_DelCallback( p_input, "intf-event", InputEvent, this );
254 /* Static callbacks for IM */
255 static int ItemChanged( vlc_object_t *p_this, const char *psz_var,
256 vlc_value_t oldval, vlc_value_t newval, void *param )
258 InputManager *im = (InputManager*)param;
259 input_item_t *p_item = static_cast<input_item_t *>(newval.p_address);
261 IMEvent *event = new IMEvent( ItemChanged_Type, p_item );
262 QApplication::postEvent( im, event );
266 static int InputEvent( vlc_object_t *p_this, const char *,
267 vlc_value_t, vlc_value_t newval, void *param )
269 InputManager *im = (InputManager*)param;
272 switch( newval.i_int )
274 case INPUT_EVENT_STATE:
275 event = new IMEvent( ItemStateChanged_Type );
277 case INPUT_EVENT_RATE:
278 event = new IMEvent( ItemRateChanged_Type );
280 case INPUT_EVENT_POSITION:
281 //case INPUT_EVENT_LENGTH:
282 event = new IMEvent( PositionUpdate_Type );
285 case INPUT_EVENT_TITLE:
286 case INPUT_EVENT_CHAPTER:
287 event = new IMEvent( ItemTitleChanged_Type );
291 event = new IMEvent( ItemEsChanged_Type );
293 case INPUT_EVENT_TELETEXT:
294 event = new IMEvent( ItemTeletextChanged_Type );
297 case INPUT_EVENT_STATISTICS:
298 event = new IMEvent( StatisticsUpdate_Type );
301 case INPUT_EVENT_VOUT:
302 event = new IMEvent( InterfaceVoutUpdate_Type );
304 case INPUT_EVENT_AOUT:
305 event = new IMEvent( InterfaceAoutUpdate_Type );
308 case INPUT_EVENT_ITEM_META: /* Codec MetaData + Art */
309 event = new IMEvent( MetaChanged_Type );
311 case INPUT_EVENT_ITEM_INFO: /* Codec Info */
312 event = new IMEvent( InfoChanged_Type );
314 case INPUT_EVENT_ITEM_NAME:
315 event = new IMEvent( NameChanged_Type );
318 case INPUT_EVENT_AUDIO_DELAY:
319 case INPUT_EVENT_SUBTITLE_DELAY:
320 event = new IMEvent( SynchroChanged_Type );
323 case INPUT_EVENT_CACHE:
324 event = new IMEvent( CachingEvent_Type );
327 case INPUT_EVENT_BOOKMARK:
328 event = new IMEvent( BookmarksChanged_Type );
331 case INPUT_EVENT_RECORD:
332 event = new IMEvent( RecordingEvent_Type );
335 case INPUT_EVENT_PROGRAM:
336 /* This is for PID changes */
337 event = new IMEvent( ProgramChanged_Type );
340 case INPUT_EVENT_SIGNAL:
341 /* This is for capture-card signals */
342 /* event = new IMEvent( SignalChanged_Type );
350 QApplication::postEvent( im, event );
354 static int VbiEvent( vlc_object_t *, const char *,
355 vlc_value_t, vlc_value_t, void *param )
357 InputManager *im = (InputManager*)param;
358 IMEvent *event = new IMEvent( ItemTeletextChanged_Type );
360 QApplication::postEvent( im, event );
364 void InputManager::UpdatePosition()
366 /* Update position */
367 int i_length, i_time; /* Int is enough, since we store seconds */
369 i_length = var_GetTime( p_input , "length" ) / 1000000;
370 i_time = var_GetTime( p_input , "time") / 1000000;
371 f_pos = var_GetFloat( p_input , "position" );
372 emit positionUpdated( f_pos, i_time, i_length );
375 void InputManager::UpdateNavigation()
377 /* Update navigation status */
378 vlc_value_t val; val.i_int = 0;
381 var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
385 emit titleChanged( true );
386 msg_Dbg( p_intf, "Title %i", val.i_int );
387 /* p_input != NULL since val.i_int != 0 */
389 var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
390 emit chapterChanged( (val.i_int > 0) );
391 msg_Dbg( p_intf, "Chapter: %i", val.i_int );
394 emit titleChanged( false );
397 void InputManager::UpdateStatus()
399 /* Update playing status */
400 int state = var_GetInteger( p_input, "state" );
401 if( i_old_playing_status != state )
403 i_old_playing_status = state;
404 emit statusChanged( state );
408 void InputManager::UpdateRate()
411 int i_new_rate = var_GetInteger( p_input, "rate");
412 if( i_new_rate != i_rate )
416 emit rateChanged( i_rate );
420 void InputManager::UpdateName()
422 /* Update text, name and nowplaying */
425 /* Try to get the Title, then the Name */
426 char *psz_name = input_item_GetTitleFbName( input_GetItem( p_input ) );
428 /* Try to get the nowplaying */
429 char *psz_nowplaying =
430 input_item_GetNowPlaying( input_GetItem( p_input ) );
431 if( !EMPTY_STR( psz_nowplaying ) )
433 text.sprintf( "%s - %s", psz_nowplaying, psz_name );
435 else /* Do it ourself */
437 char *psz_artist = input_item_GetArtist( input_GetItem( p_input ) );
439 if( !EMPTY_STR( psz_artist ) )
440 text.sprintf( "%s - %s", psz_artist, psz_name );
442 text.sprintf( "%s", psz_name );
446 /* Free everything */
448 free( psz_nowplaying );
450 /* If we have Nothing */
453 psz_name = input_item_GetURI( input_GetItem( p_input ) );
454 text.sprintf( "%s", psz_name );
455 text = text.remove( 0, text.lastIndexOf( DIR_SEP ) + 1 );
459 if( oldName != text )
461 emit nameChanged( text );
466 bool InputManager::hasAudio()
471 var_Change( p_input, "audio-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
472 return val.i_int > 0;
477 void InputManager::UpdateTeletext()
481 const bool b_enabled = var_CountChoices( p_input, "teletext-es" ) > 0;
482 const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
484 /* Teletext is possible. Show the buttons */
485 emit teletextPossible( b_enabled );
487 /* If Teletext is selected */
488 if( b_enabled && i_teletext_es >= 0 )
490 /* Then, find the current page */
492 bool b_transparent = false;
494 vlc_object_t *p_vbi = (vlc_object_t *)
495 vlc_object_find_name( p_input, "zvbi", FIND_CHILD );
499 /* We deleted it (if not here, it does not harm), because
500 * var_AddCallback will silently add a duplicated one */
501 var_DelCallback( p_vbi, "vbi-page", VbiEvent, this );
502 /* This callback is not remove explicitly, but interfaces
503 * are guaranted to outlive input */
504 var_AddCallback( p_vbi, "vbi-page", VbiEvent, this );
506 i_page = var_GetInteger( p_vbi, "vbi-page" );
507 b_transparent = !var_GetBool( p_vbi, "vbi-opaque" );
508 vlc_object_release( p_vbi );
510 emit newTelexPageSet( i_page );
511 emit teletextTransparencyActivated( b_transparent );
514 emit teletextActivated( b_enabled && i_teletext_es >= 0 );
518 emit teletextActivated( false );
519 emit teletextPossible( false );
523 void InputManager::UpdateVout()
527 /* Get current vout lists from input */
529 vout_thread_t **pp_vout;
530 if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
537 emit voutListChanged( pp_vout, i_vout );
540 bool b_old_video = b_video;
541 b_video = i_vout > 0;
542 if( !!b_old_video != !!b_video )
543 emit voutChanged( b_video );
545 /* Release the vout list */
546 for( int i = 0; i < i_vout; i++ )
547 vlc_object_release( (vlc_object_t*)pp_vout[i] );
551 void InputManager::UpdateAout()
558 void InputManager::UpdateCaching()
560 if(!hasInput()) return;
562 float f_newCache = var_GetFloat ( p_input, "cache" );
563 if( f_newCache != f_cache )
565 f_cache = f_newCache;
567 emit cachingChanged( f_cache );
571 void InputManager::requestArtUpdate()
575 playlist_t *p_playlist = pl_Hold( p_intf );
576 playlist_AskForArtEnqueue( p_playlist, input_GetItem( p_input ), pl_Unlocked );
577 pl_Release( p_intf );
581 /* No input will signal the cover art to update,
582 * let's do it ourself */
587 void InputManager::UpdateArt()
593 char *psz_art = input_item_GetArtURL( input_GetItem( p_input ) );
594 if( psz_art && !strncmp( psz_art, "file://", 7 ) &&
595 decode_URI( psz_art + 7 ) )
596 url = qfu( psz_art + 7);
599 url = url.replace( "file://", "" );
600 /* Taglib seems to define a attachment://, It won't work yet */
601 url = url.replace( "attachment://", "" );
604 /* Update Art meta */
605 emit artChanged( url );
608 inline void InputManager::UpdateStats()
610 emit statisticsUpdated( input_GetItem( p_input ) );
613 inline void InputManager::UpdateMeta( int id )
615 emit metaChanged( id );
618 inline void InputManager::UpdateMeta()
620 emit currentMetaChanged( input_GetItem( p_input ) );
623 inline void InputManager::UpdateInfo()
625 emit infoChanged( input_GetItem( p_input ) );
628 void InputManager::UpdateRecord()
632 emit recordingStateChanged( var_GetBool( p_input, "record" ) );
636 void InputManager::UpdateProgramEvent()
640 bool b_scrambled = var_GetBool( p_input, "program-scrambled" );
641 emit encryptionChanged( b_scrambled );
645 /* User update of the slider */
646 void InputManager::sliderUpdate( float new_pos )
649 var_SetFloat( p_input, "position", new_pos );
652 /* User togglePlayPause */
653 void InputManager::togglePlayPause()
657 int state = var_GetInteger( p_input, "state" );
658 state = ( state != PLAYING_S ) ? PLAYING_S : PAUSE_S;
659 var_SetInteger( p_input, "state", state );
660 emit statusChanged( state );
664 void InputManager::sectionPrev()
668 int i_type = var_Type( p_input, "next-chapter" );
669 var_SetVoid( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
670 "prev-chapter":"prev-title" );
674 void InputManager::sectionNext()
678 int i_type = var_Type( p_input, "next-chapter" );
679 var_SetVoid( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
680 "next-chapter":"next-title" );
684 void InputManager::sectionMenu()
688 vlc_value_t val, text;
690 if( var_Change( p_input, "title 0", VLC_VAR_GETLIST, &val, &text ) < 0 )
693 /* XXX is it "Root" or "Title" we want here ?" (set 0 by default) */
695 for( int i = 0; i < val.p_list->i_count; i++ )
697 if( !strcmp( text.p_list->p_values[i].psz_string, "Title" ) )
700 var_FreeList( &val, &text );
702 var_SetInteger( p_input, "title 0", root );
710 /* Set a new Teletext Page */
711 void InputManager::telexSetPage( int page )
715 const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
717 if( i_teletext_es >= 0 )
719 vlc_object_t *p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
720 "zvbi", FIND_CHILD );
723 var_SetInteger( p_vbi, "vbi-page", page );
724 vlc_object_release( p_vbi );
725 emit newTelexPageSet( page );
731 /* Set the transparency on teletext */
732 void InputManager::telexSetTransparency( bool b_transparentTelextext )
736 vlc_object_t *p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
737 "zvbi", FIND_CHILD );
740 var_SetBool( p_vbi, "vbi-opaque", !b_transparentTelextext );
741 vlc_object_release( p_vbi );
742 emit teletextTransparencyActivated( b_transparentTelextext );
747 void InputManager::activateTeletext( bool b_enable )
751 if( hasInput() && !var_Change( p_input, "teletext-es", VLC_VAR_GETLIST, &list, &text ) )
753 if( list.p_list->i_count > 0 )
755 /* Prefer the page 100 if it is present */
757 for( i = 0; i < text.p_list->i_count; i++ )
759 /* The description is the page number as a string */
760 const char *psz_page = text.p_list->p_values[i].psz_string;
761 if( psz_page && !strcmp( psz_page, "100" ) )
764 if( i >= list.p_list->i_count )
766 var_SetInteger( p_input, "spu-es", b_enable ? list.p_list->p_values[i].i_int : -1 );
768 var_FreeList( &list, &text );
772 void InputManager::reverse()
776 int i_rate = var_GetInteger( p_input, "rate" );
777 var_SetInteger( p_input, "rate", -i_rate );
781 void InputManager::slower()
784 var_SetVoid( p_input, "rate-slower" );
787 void InputManager::faster()
790 var_SetVoid( p_input, "rate-faster" );
793 void InputManager::littlefaster()
795 var_SetInteger( p_intf->p_libvlc, "key-action", ACTIONID_RATE_FASTER_FINE );
798 void InputManager::littleslower()
800 var_SetInteger( p_intf->p_libvlc, "key-action", ACTIONID_RATE_SLOWER_FINE );
803 void InputManager::normalRate()
806 var_SetInteger( p_input, "rate", INPUT_RATE_DEFAULT );
809 void InputManager::setRate( int new_rate )
812 var_SetInteger( p_input, "rate", new_rate );
815 void InputManager::jumpFwd()
817 int i_interval = config_GetInt( p_input, "short-jump-size" );
820 mtime_t val = (mtime_t)(i_interval) * 1000000L;
821 var_SetTime( p_input, "time-offset", val );
825 void InputManager::jumpBwd()
827 int i_interval = config_GetInt( p_input, "short-jump-size" );
830 mtime_t val = -1 *(mtime_t)(i_interval) * 1000000L;
831 var_SetTime( p_input, "time-offset", val );
835 void InputManager::setAtoB()
839 timeA = var_GetTime( THEMIM->getInput(), "time" );
843 timeB = var_GetTime( THEMIM->getInput(), "time" );
844 var_SetTime( THEMIM->getInput(), "time" , timeA );
845 CONNECT( this, positionUpdated( float, int, int ),
846 this, AtoBLoop( float, int, int ) );
852 disconnect( this, SIGNAL( positionUpdated( float, int, int ) ),
853 this, SLOT( AtoBLoop( float, int, int ) ) );
855 emit AtoBchanged( (timeA != 0 ), (timeB != 0 ) );
858 /* Function called regularly when in an AtoB loop */
859 void InputManager::AtoBLoop( float, int i_time, int )
863 if( ( i_time >= (int)( timeB/1000000 ) )
864 || ( i_time < (int)( timeA/1000000 ) ) )
865 var_SetTime( THEMIM->getInput(), "time" , timeA );
869 /**********************************************************************
870 * MainInputManager implementation. Wrap an input manager and
871 * take care of updating the main playlist input.
872 * Used in the main playlist Dialog
873 **********************************************************************/
874 MainInputManager * MainInputManager::instance = NULL;
876 MainInputManager::MainInputManager( intf_thread_t *_p_intf )
877 : QObject(NULL), p_intf( _p_intf )
880 im = new InputManager( this, p_intf );
882 var_AddCallback( THEPL, "item-change", ItemChanged, im );
883 var_AddCallback( THEPL, "item-current", PLItemChanged, this );
884 var_AddCallback( THEPL, "activity", PLItemChanged, this );
886 var_AddCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
888 /* Warn our embedded IM about input changes */
889 CONNECT( this, inputChanged( input_thread_t * ),
890 im, setInput( input_thread_t * ) );
892 /* emit check if playlist has already started playing */
893 input_thread_t *p_input = playlist_CurrentInput( THEPL );
896 input_item_t *p_item = input_GetItem( p_input );
899 IMEvent *event = new IMEvent( ItemChanged_Type, p_item );
900 customEvent( event );
903 vlc_object_release( p_input );
907 MainInputManager::~MainInputManager()
911 emit inputChanged( NULL );
912 var_DelCallback( p_input, "state", PLItemChanged, this );
913 vlc_object_release( p_input );
916 var_DelCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
918 var_DelCallback( THEPL, "activity", PLItemChanged, this );
919 var_DelCallback( THEPL, "item-change", ItemChanged, im );
921 var_DelCallback( THEPL, "item-current", PLItemChanged, this );
924 vout_thread_t* MainInputManager::getVout()
926 return p_input ? input_GetVout( p_input ) : NULL;
929 aout_instance_t * MainInputManager::getAout()
931 return p_input ? input_GetAout( p_input ) : NULL;
934 void MainInputManager::customEvent( QEvent *event )
936 int type = event->type();
937 if ( type != ItemChanged_Type && type != VolumeChanged_Type )
940 // msg_Dbg( p_intf, "New MainIM Event of type: %i", type );
941 if( type == VolumeChanged_Type )
943 emit volumeChanged();
947 /* Should be PLItemChanged Event */
948 if( !p_intf->p_sys->b_isDialogProvider )
950 if( p_input && ( p_input->b_dead || !vlc_object_alive (p_input) ) )
952 emit inputChanged( p_input );
953 var_DelCallback( p_input, "state", PLItemChanged, this );
954 vlc_object_release( p_input );
961 p_input = playlist_CurrentInput(THEPL);
964 var_AddCallback( p_input, "state", PLItemChanged, this );
965 emit inputChanged( p_input );
971 /* remove previous stored p_input */
974 vlc_object_release( p_input );
977 /* we are working as a dialogs provider */
978 playlist_t *p_playlist = pl_Hold( p_intf );
979 p_input = playlist_CurrentInput( p_playlist );
982 emit inputChanged( p_input );
984 pl_Release( p_intf );
988 /* Playlist Control functions */
989 void MainInputManager::stop()
991 playlist_Stop( THEPL );
994 void MainInputManager::next()
996 playlist_Next( THEPL );
999 void MainInputManager::prev()
1001 playlist_Prev( THEPL );
1004 void MainInputManager::togglePlayPause()
1006 /* No input, play */
1008 playlist_Play( THEPL );
1010 getIM()->togglePlayPause();
1013 void MainInputManager::activatePlayQuit( bool b_exit )
1015 var_SetBool( THEPL, "play-and-exit", b_exit );
1018 /* Static callbacks for MIM */
1019 static int PLItemChanged( vlc_object_t *p_this, const char *psz_var,
1020 vlc_value_t oldval, vlc_value_t, void *param )
1022 MainInputManager *mim = (MainInputManager*)param;
1024 IMEvent *event = new IMEvent( ItemChanged_Type );
1025 QApplication::postEvent( mim, event );
1029 static int VolumeChanged( vlc_object_t *p_this, const char *psz_var,
1030 vlc_value_t oldval, vlc_value_t newval, void *param )
1032 MainInputManager *mim = (MainInputManager*)param;
1034 IMEvent *event = new IMEvent( VolumeChanged_Type );
1035 QApplication::postEvent( mim, event );