1 /*****************************************************************************
2 * qt4.cpp : Qt interface
3 ****************************************************************************
4 * Copyright © 2006-2009 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
8 * Jean-Baptiste Kempf <jb@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
29 #include <QApplication>
35 #include "input_manager.hpp" /* THEMIM destruction */
36 #include "dialogs_provider.hpp" /* THEDP creation */
37 #include "main_interface.hpp" /* MainInterface creation */
38 #include "dialogs/help.hpp" /* Launch Update */
39 #include "recents.hpp" /* Recents Item destruction */
40 #include "util/qvlcapp.hpp" /* QVLCApplication definition */
41 #include "components/playlist/playlist_model.hpp" /* for ~PLModel() */
47 #include "../../../share/icons/32x32/vlc.xpm"
48 #include "../../../share/icons/32x32/vlc-xmas.xpm"
49 #include <vlc_plugin.h>
50 #include <vlc_vout_window.h>
52 #ifdef WIN32 /* For static builds */
54 Q_IMPORT_PLUGIN(qjpeg)
55 Q_IMPORT_PLUGIN(qtaccessiblewidgets)
58 /*****************************************************************************
60 *****************************************************************************/
61 static int OpenIntf ( vlc_object_t * );
62 static int OpenDialogs ( vlc_object_t * );
63 static int Open ( vlc_object_t *, bool );
64 static void Close ( vlc_object_t * );
65 static int WindowOpen ( vout_window_t *, const vout_window_cfg_t * );
66 static void WindowClose ( vout_window_t * );
67 static void *Thread ( void * );
68 static void ShowDialog ( intf_thread_t *, int, int, intf_dialog_args_t * );
70 /*****************************************************************************
72 *****************************************************************************/
73 #define ADVANCED_PREFS_TEXT N_( "Show advanced preferences over simple ones" )
74 #define ADVANCED_PREFS_LONGTEXT N_( "Show advanced preferences and not simple "\
75 "preferences when opening the preferences "\
78 #define SYSTRAY_TEXT N_( "Systray icon" )
79 #define SYSTRAY_LONGTEXT N_( "Show an icon in the systray " \
80 "allowing you to control VLC media player " \
81 "for basic actions." )
83 #define MINIMIZED_TEXT N_( "Start VLC with only a systray icon" )
84 #define MINIMIZED_LONGTEXT N_( "VLC will start with just an icon in " \
87 #define KEEPSIZE_TEXT N_( "Resize interface to the native video size" )
88 #define KEEPSIZE_LONGTEXT N_( "You have two choices:\n" \
89 " - The interface will resize to the native video size\n" \
90 " - The video will fit to the interface size\n " \
91 "By default, interface resize to the native video size." )
93 #define TITLE_TEXT N_( "Show playing item name in window title" )
94 #define TITLE_LONGTEXT N_( "Show the name of the song or video in the " \
95 "controller window title." )
97 #define NOTIFICATION_TEXT N_( "Show notification popup on track change" )
98 #define NOTIFICATION_LONGTEXT N_( \
99 "Show a notification popup with the artist and track name when " \
100 "the current playlist item changes, when VLC is minimized or hidden." )
102 #define ADVANCED_OPTIONS_TEXT N_( "Advanced options" )
103 #define ADVANCED_OPTIONS_LONGTEXT N_( "Show all the advanced options " \
106 #define OPACITY_TEXT N_( "Windows opacity between 0.1 and 1" )
107 #define OPACITY_LONGTEXT N_( "Sets the windows opacity between 0.1 and 1 " \
108 "for main interface, playlist and extended panel."\
109 " This option only works with Windows and " \
110 "X11 with composite extensions." )
112 #define OPACITY_FS_TEXT N_( "Fullscreen controller opacity between 0.1 and 1" )
113 #define OPACITY_FS_LONGTEXT N_( "Sets the fullscreen controller opacity between 0.1 and 1 " \
114 "for main interface, playlist and extended panel."\
115 " This option only works with Windows and " \
116 "X11 with composite extensions." )
119 #define ERROR_TEXT N_( "Show unimportant error and warnings dialogs" )
121 #define UPDATER_TEXT N_( "Activate the updates availability notification" )
122 #define UPDATER_LONGTEXT N_( "Activate the automatic notification of new " \
123 "versions of the software. It runs once every " \
125 #define UPDATER_DAYS_TEXT N_("Number of days between two update checks")
127 #define PRIVACY_TEXT N_( "Ask for network policy at start" )
129 #define RECENTPLAY_TEXT N_( "Save the recently played items in the menu" )
131 #define RECENTPLAY_FILTER_TEXT N_( "List of words separated by | to filter" )
132 #define RECENTPLAY_FILTER_LONGTEXT N_( "Regular expression used to filter " \
133 "the recent items played in the player" )
135 #define SLIDERCOL_TEXT N_( "Define the colors of the volume slider " )
136 #define SLIDERCOL_LONGTEXT N_( "Define the colors of the volume slider\n" \
137 "By specifying the 12 numbers separated by a ';'\n" \
138 "Default is '255;255;255;20;226;20;255;176;15;235;30;20'\n" \
139 "An alternative can be '30;30;50;40;40;100;50;50;160;150;150;255' ")
141 #define QT_MODE_TEXT N_( "Selection of the starting mode and look " )
142 #define QT_MODE_LONGTEXT N_( "Start VLC with:\n" \
144 " - a zone always present to show information " \
145 "as lyrics, album arts...\n" \
146 " - minimal mode with limited controls" )
148 #define QT_FULLSCREEN_TEXT N_( "Show a controller in fullscreen mode" )
149 #define QT_NATIVEOPEN_TEXT N_( "Embed the file browser in open dialog" )
151 #define FULLSCREEN_NUMBER_TEXT N_( "Define which screen fullscreen goes" )
152 #define FULLSCREEN_NUMBER_LONGTEXT N_( "Screennumber of fullscreen, instead of " \
153 "same screen where interface is" )
155 #define QT_AUTOLOAD_EXTENSIONS_TEXT N_( "Load extensions on startup" )
156 #define QT_AUTOLOAD_EXTENSIONS_LONGTEXT N_( "Automatically load the "\
157 "extensions module on startup" )
159 #define QT_MINIMAL_MODE_TEXT N_("Start in minimal view (without menus)" )
161 #define QT_BGCONE_TEXT N_( "Display background cone or art" )
162 #define QT_BGCONE_LONGTEXT N_( "Display background cone or current album art " \
163 "when not playing. " \
164 "Can be disabled to prevent burning screen." )
165 #define QT_BGCONE_EXPANDS_TEXT N_( "Expanding background cone or art." )
166 #define QT_BGCONE_EXPANDS_LONGTEXT N_( "Background art fits window's size" )
168 #define QT_DISABLE_VOLUME_KEYS_TEXT N_( "Ignore keyboard volume buttons." )
169 #define QT_DISABLE_VOLUME_KEYS_LONGTEXT N_( \
170 "With this option checked, the volume up, volume down and mute buttons on your " \
171 "keyboard will always change your system volume. With this option unchecked, the " \
172 "volume buttons will change VLC's volume when VLC is selected and change the " \
173 "system volume when VLC is not selected." )
175 #define QT_PAUSE_MINIMIZED_TEXT N_( "Pause the video playback when minimized" )
176 #define QT_PAUSE_MINIMIZED_LONGTEXT N_( \
177 "With this option enabled, the playback will be automatically paused when minimizing the window." )
179 #define ICONCHANGE_TEXT N_( "Allow automatic icon changes")
180 #define ICONCHANGE_LONGTEXT N_( \
181 "This option allows the interface to change its icon on various occasions.")
183 static const int i_notification_list[] =
184 { NOTIFICATION_NEVER, NOTIFICATION_MINIMIZED, NOTIFICATION_ALWAYS };
186 static const char *const psz_notification_list_text[] =
187 { N_("Never"), N_("When minimized"), N_("Always") };
189 /**********************************************************************/
191 set_shortname( "Qt" )
192 set_description( N_("Qt interface") )
193 set_category( CAT_INTERFACE )
194 set_subcategory( SUBCAT_INTERFACE_MAIN )
195 set_capability( "interface", 151 )
196 set_callbacks( OpenIntf, Close )
200 add_bool( "qt-minimal-view", false, QT_MINIMAL_MODE_TEXT,
201 QT_MINIMAL_MODE_TEXT, false );
203 add_bool( "qt-system-tray", true, SYSTRAY_TEXT, SYSTRAY_LONGTEXT, false)
205 add_integer( "qt-notification", NOTIFICATION_MINIMIZED,
207 NOTIFICATION_LONGTEXT, false )
208 change_integer_list( i_notification_list, psz_notification_list_text )
210 add_bool( "qt-start-minimized", false, MINIMIZED_TEXT,
211 MINIMIZED_LONGTEXT, true)
212 add_bool( "qt-pause-minimized", false, QT_PAUSE_MINIMIZED_TEXT,
213 QT_PAUSE_MINIMIZED_LONGTEXT, false )
215 add_float_with_range( "qt-opacity", 1., 0.1, 1., OPACITY_TEXT,
216 OPACITY_LONGTEXT, false )
217 add_float_with_range( "qt-fs-opacity", 0.8, 0.1, 1., OPACITY_FS_TEXT,
218 OPACITY_FS_LONGTEXT, false )
220 add_bool( "qt-video-autoresize", true, KEEPSIZE_TEXT,
221 KEEPSIZE_LONGTEXT, false )
222 add_bool( "qt-name-in-title", true, TITLE_TEXT,
223 TITLE_LONGTEXT, false )
224 add_bool( "qt-fs-controller", true, QT_FULLSCREEN_TEXT,
225 QT_FULLSCREEN_TEXT, false )
227 add_bool( "qt-recentplay", true, RECENTPLAY_TEXT,
228 RECENTPLAY_TEXT, false )
229 add_string( "qt-recentplay-filter", "",
230 RECENTPLAY_FILTER_TEXT, RECENTPLAY_FILTER_LONGTEXT, false )
233 add_bool( "qt-updates-notif", true, UPDATER_TEXT,
234 UPDATER_LONGTEXT, false )
235 add_integer_with_range( "qt-updates-days", 3, 0, 180,
236 UPDATER_DAYS_TEXT, UPDATER_DAYS_TEXT, false )
240 add_bool( "qt-disable-volume-keys" /* name */,
241 true /* default value */,
242 QT_DISABLE_VOLUME_KEYS_TEXT /* text */,
243 QT_DISABLE_VOLUME_KEYS_LONGTEXT /* longtext */,
244 false /* advanced mode only */)
247 add_bool( "qt-embedded-open", false, QT_NATIVEOPEN_TEXT,
248 QT_NATIVEOPEN_TEXT, false )
251 add_bool( "qt-advanced-pref", false, ADVANCED_PREFS_TEXT,
252 ADVANCED_PREFS_LONGTEXT, false )
253 add_bool( "qt-error-dialogs", true, ERROR_TEXT,
256 add_string( "qt-slider-colours", "153;210;153;20;210;20;255;199;15;245;39;29",
257 SLIDERCOL_TEXT, SLIDERCOL_LONGTEXT, false )
259 add_bool( "qt-privacy-ask", true, PRIVACY_TEXT, PRIVACY_TEXT,
263 add_integer( "qt-fullscreen-screennumber", -1, FULLSCREEN_NUMBER_TEXT,
264 FULLSCREEN_NUMBER_LONGTEXT, false );
266 add_bool( "qt-autoload-extensions", true,
267 QT_AUTOLOAD_EXTENSIONS_TEXT, QT_AUTOLOAD_EXTENSIONS_LONGTEXT,
270 add_bool( "qt-bgcone", true, QT_BGCONE_TEXT, QT_BGCONE_LONGTEXT, true )
271 add_bool( "qt-bgcone-expands", false, QT_BGCONE_EXPANDS_TEXT,
272 QT_BGCONE_EXPANDS_LONGTEXT, true )
274 add_bool( "qt-icon-change", true, ICONCHANGE_TEXT, ICONCHANGE_LONGTEXT, true )
276 add_obsolete_bool( "qt-blingbling" ) /* Suppressed since 1.0.0 */
277 add_obsolete_integer( "qt-display-mode" ) /* Suppressed since 1.1.0 */
279 add_obsolete_bool( "qt-adv-options" ) /* Since 2.0.0 */
280 add_obsolete_bool( "qt-volume-complete" ) /* Since 2.0.0 */
281 add_obsolete_integer( "qt-startvolume" ) /* Since 2.0.0 */
283 cannot_unload_broken_library()
286 set_description( "Dialogs provider" )
287 set_capability( "dialogs provider", 51 )
289 set_callbacks( OpenDialogs, Close )
291 #if defined (Q_WS_X11) || (defined (Q_WS_QPA) && defined (__unix__))
293 set_capability( "vout window xid", 0 )
294 set_callbacks( WindowOpen, WindowClose )
296 #if defined (Q_WS_WIN) || (defined (Q_WS_QPA) && defined (WIN32)) \
297 || defined (Q_WS_PM) || (defined (Q_WS_QPA) && defined (__OS2__))
299 set_capability( "vout window hwnd", 0 )
300 set_callbacks( WindowOpen, WindowClose )
302 #if defined (Q_WS_MAC) || (defined (Q_WS_QPA) && defined (__APPLE__))
304 set_capability( "vout window nsobject", 0 )
305 set_callbacks( WindowOpen, WindowClose )
310 /*****************************************/
312 /* Ugly, but the Qt interface assumes single instance anyway */
313 static vlc_sem_t ready;
315 static bool busy = false;
316 static bool active = false;
318 /*****************************************************************************
320 *****************************************************************************/
323 /* Used to abort the app.exec() on OSX after libvlc_Quit is called */
324 #include "../../../lib/libvlc_internal.h" /* libvlc_SetExitHandler */
325 static void Abort( void *obj )
327 QVLCApp::triggerQuit();
331 static void RegisterIntf( vlc_object_t *p_this )
333 playlist_t *pl = pl_Get(p_this);
334 var_Create (pl, "qt4-iface", VLC_VAR_ADDRESS);
335 var_SetAddress (pl, "qt4-iface", p_this);
336 var_Create (pl, "window", VLC_VAR_STRING);
337 var_SetString (pl, "window", "qt4,any");
341 static int Open( vlc_object_t *p_this, bool isDialogProvider )
343 intf_thread_t *p_intf = (intf_thread_t *)p_this;
346 if( !vlc_xlib_init( p_this ) )
349 Display *p_display = XOpenDisplay( NULL );
352 msg_Err( p_intf, "Could not connect to X server" );
355 XCloseDisplay( p_display );
358 QMutexLocker locker (&lock);
361 msg_Err (p_this, "cannot start Qt multiple times");
365 /* Allocations of p_sys */
366 intf_sys_t *p_sys = p_intf->p_sys = new intf_sys_t;
367 p_intf->p_sys->b_isDialogProvider = isDialogProvider;
369 p_sys->pl_model = NULL;
372 vlc_sem_init (&ready, 0);
374 /* Run mainloop on the main thread as Cocoa requires */
375 libvlc_SetExitHandler( p_intf->p_libvlc, Abort, p_intf );
376 Thread( (void *)p_intf );
378 if( vlc_clone( &p_sys->thread, Thread, p_intf, VLC_THREAD_PRIORITY_LOW ) )
385 /* Wait for the interface to be ready. This prevents the main
386 * LibVLC thread from starting video playback before we can create
387 * an embedded video window. */
388 vlc_sem_wait (&ready);
389 vlc_sem_destroy (&ready);
390 busy = active = true;
393 if( !isDialogProvider )
395 RegisterIntf( p_this );
402 /* Open Qt interface */
403 static int OpenIntf( vlc_object_t *p_this )
405 return Open( p_this, false );
408 /* Open Dialog Provider */
409 static int OpenDialogs( vlc_object_t *p_this )
411 return Open( p_this, true );
414 static void Close( vlc_object_t *p_this )
416 intf_thread_t *p_intf = (intf_thread_t *)p_this;
417 intf_sys_t *p_sys = p_intf->p_sys;
419 if( !p_sys->b_isDialogProvider )
421 var_Destroy (pl_Get(p_this), "window");
422 var_Destroy (pl_Get(p_this), "qt4-iface");
426 msg_Dbg( p_this, "requesting exit..." );
427 QVLCApp::triggerQuit();
429 msg_Dbg( p_this, "waiting for UI thread..." );
431 vlc_join (p_sys->thread, NULL);
435 QMutexLocker locker (&lock);
440 static void *Thread( void *obj )
442 intf_thread_t *p_intf = (intf_thread_t *)obj;
444 char dummy[] = "vlc"; /* for WM_CLASS */
445 char *argv[] = { dummy, NULL, };
446 int argc = sizeof(argv) / sizeof(argv[0]) - 1;
448 Q_INIT_RESOURCE( vlc );
450 /* Start the QApplication here */
451 QVLCApp app( argc, argv );
453 p_intf->p_sys->p_app = &app;
456 /* All the settings are in the .conf/.ini style */
457 p_intf->p_sys->mainSettings = new QSettings(
459 QSettings::IniFormat,
461 QSettings::NativeFormat,
463 QSettings::UserScope, "vlc", "vlc-qt-interface" );
465 /* Icon setting, Mac uses icon from .icns */
467 if( QDate::currentDate().dayOfYear() >= QT_XMAS_JOKE_DAY && var_InheritBool( p_intf, "qt-icon-change" ) )
468 app.setWindowIcon( QIcon(vlc_xmas_xpm) );
470 app.setWindowIcon( QIcon(vlc_xpm) );
473 /* Initialize timers and the Dialog Provider */
474 DialogsProvider::getInstance( p_intf );
476 /* Detect screensize for small screens like TV or Netbooks */
477 p_intf->p_sys->i_screenHeight =
478 app.QApplication::desktop()->availableGeometry().height();
481 /* Checking for VLC updates */
482 if( var_InheritBool( p_intf, "qt-updates-notif" ) &&
483 !var_InheritBool( p_intf, "qt-privacy-ask" ) )
485 int interval = var_InheritInteger( p_intf, "qt-updates-days" );
486 if( QDate::currentDate() >
487 getSettings()->value( "updatedate" ).toDate().addDays( interval ) )
489 /* The constructor of the update Dialog will do the 1st request */
490 UpdateDialog::getInstance( p_intf );
491 getSettings()->setValue( "updatedate", QDate::currentDate() );
496 /* Create the normal interface in non-DP mode */
497 if( !p_intf->p_sys->b_isDialogProvider )
499 p_mi = new MainInterface( p_intf );
500 p_intf->p_sys->p_mi = p_mi;
505 /* Explain how to show a dialog :D */
506 p_intf->pf_show_dialog = ShowDialog;
508 /* Check window type from the Qt platform back-end */
509 p_intf->p_sys->voutWindowType = VOUT_WINDOW_TYPE_INVALID;
510 #if defined (Q_WS_QPA)
511 QString platform = app.platformName();
512 if( platform == qfu("xcb") )
513 p_intf->p_sys->voutWindowType = VOUT_WINDOW_TYPE_XID;
515 msg_Err( p_intf, "unknown Qt platform: %s", qtu(platform) );
516 #elif defined (Q_WS_X11)
517 p_intf->p_sys->voutWindowType = VOUT_WINDOW_TYPE_XID;
518 #elif defined (Q_WS_WIN) || defined (Q_WS_PM)
519 p_intf->p_sys->voutWindowType = VOUT_WINDOW_TYPE_HWND;
520 #elif defined (Q_WS_MAC)
521 p_intf->p_sys->voutWindowType = VOUT_WINDOW_TYPE_NSOBJECT;
524 /* Tell the main LibVLC thread we are ready */
525 vlc_sem_post (&ready);
528 /* We took over main thread, register and start here */
529 if( !p_intf->p_sys->b_isDialogProvider )
531 RegisterIntf( (vlc_object_t *)p_intf );
532 playlist_Play( THEPL );
537 app.setQuitOnLastWindowClosed( false );
539 /* Retrieve last known path used in file browsing */
540 p_intf->p_sys->filepath =
541 getSettings()->value( "filedialog-path", QVLCUserDir( VLC_HOME_DIR ) ).toString();
543 /* Loads and tries to apply the preferred QStyle */
544 QString s_style = getSettings()->value( "MainWindow/QtStyle", "" ).toString();
545 if( s_style.compare("") != 0 )
546 QApplication::setStyle( s_style );
551 msg_Dbg( p_intf, "QApp exec() finished" );
554 QMutexLocker locker (&lock);
557 p_intf->p_sys->p_mi = NULL;
558 /* Destroy first the main interface because it is connected to some
559 slots in the MainInputManager */
563 /* Destroy all remaining windows,
564 because some are connected to some slots
565 in the MainInputManager
566 Settings must be destroyed after that.
568 DialogsProvider::killInstance();
570 /* Delete the recentsMRL object before the configuration */
571 RecentsMRL::killInstance();
573 /* Save the path or delete if recent play are disabled */
574 if( var_InheritBool( p_intf, "qt-recentplay" ) )
575 getSettings()->setValue( "filedialog-path", p_intf->p_sys->filepath );
577 getSettings()->remove( "filedialog-path" );
580 delete p_intf->p_sys->pl_model;
582 /* Delete the configuration. Application has to be deleted after that. */
583 delete p_intf->p_sys->mainSettings;
585 /* Destroy the MainInputManager */
586 MainInputManager::killInstance();
588 /* Delete the application automatically */
592 /*****************************************************************************
593 * Callback to show a dialog
594 *****************************************************************************/
595 static void ShowDialog( intf_thread_t *p_intf, int i_dialog_event, int i_arg,
596 intf_dialog_args_t *p_arg )
598 VLC_UNUSED( p_intf );
599 DialogEvent *event = new DialogEvent( i_dialog_event, i_arg, p_arg );
600 QApplication::postEvent( THEDP, event );
604 * Video output window provider
606 * TODO move it out of here ?
608 static int WindowControl( vout_window_t *, int i_query, va_list );
610 static int WindowOpen( vout_window_t *p_wnd, const vout_window_cfg_t *cfg )
612 if( cfg->is_standalone )
615 intf_thread_t *p_intf =
616 (intf_thread_t *)var_InheritAddress( p_wnd, "qt4-iface" );
618 { /* If another interface is used, this plugin cannot work */
619 msg_Dbg( p_wnd, "Qt interface not found" );
622 if( p_intf->p_sys->voutWindowType != cfg->type )
626 case VOUT_WINDOW_TYPE_XID:
627 if( var_InheritBool( p_wnd, "video-wallpaper" ) )
632 QMutexLocker locker (&lock);
633 if (unlikely(!active))
636 MainInterface *p_mi = p_intf->p_sys->p_mi;
637 msg_Dbg( p_wnd, "requesting video window..." );
641 unsigned i_width = cfg->width;
642 unsigned i_height = cfg->height;
644 WId wid = p_mi->getVideo( &i_x, &i_y, &i_width, &i_height );
650 case VOUT_WINDOW_TYPE_XID:
651 p_wnd->handle.xid = (uintptr_t)wid;
652 p_wnd->display.x11 = NULL;
654 case VOUT_WINDOW_TYPE_HWND:
655 p_wnd->handle.hwnd = (void *)wid;
657 case VOUT_WINDOW_TYPE_NSOBJECT:
658 p_wnd->handle.nsobject = (void *)wid;
662 p_wnd->control = WindowControl;
663 p_wnd->sys = (vout_window_sys_t*)p_mi;
667 static int WindowControl( vout_window_t *p_wnd, int i_query, va_list args )
669 MainInterface *p_mi = (MainInterface *)p_wnd->sys;
670 QMutexLocker locker (&lock);
672 if (unlikely(!active))
674 msg_Warn (p_wnd, "video already released before control");
677 return p_mi->controlVideo( i_query, args );
680 static void WindowClose( vout_window_t *p_wnd )
682 MainInterface *p_mi = (MainInterface *)p_wnd->sys;
683 QMutexLocker locker (&lock);
685 /* Normally, the interface terminates after the video. In the contrary, the
686 * Qt4 main loop is gone, so we cannot send any event to the user interface
687 * widgets. Ideally, we would keep the Qt4 main loop running until after
688 * the video window is released. But it is far simpler to just have the Qt4
689 * thread destroy the window early, and to turn this function into a stub.
691 * That assumes the video output will behave sanely if it window is
692 * destroyed asynchronously.
693 * XCB and Xlib-XCB are fine with that. Plain Xlib wouldn't, */
694 if (unlikely(!active))
696 msg_Warn (p_wnd, "video already released");
699 msg_Dbg (p_wnd, "releasing video...");
700 p_mi->releaseVideo();