1 /*****************************************************************************
2 * libvlc.c: libvlc instances creation and deletion, interfaces handling
3 *****************************************************************************
4 * Copyright (C) 1998-2008 VLC authors and VideoLAN
7 * Authors: Vincent Seguin <seguin@via.ecp.fr>
8 * Samuel Hocevar <sam@zoy.org>
9 * Gildas Bazin <gbazin@videolan.org>
10 * Derk-Jan Hartman <hartman at videolan dot org>
11 * RĂ©mi Denis-Courmont <rem # videolan : org>
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU Lesser General Public License as published by
15 * the Free Software Foundation; either version 2.1 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU Lesser General Public License for more details.
23 * You should have received a copy of the GNU Lesser General Public License
24 * along with this program; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
26 *****************************************************************************/
29 * This file contains functions to create and destroy libvlc instances
32 /*****************************************************************************
34 *****************************************************************************/
39 #include <vlc_common.h>
40 #include "../lib/libvlc_internal.h"
41 #include <vlc_input.h>
43 #include "modules/modules.h"
44 #include "config/configuration.h"
46 #include <stdio.h> /* sprintf() */
48 #include <stdlib.h> /* free() */
50 #include "config/vlc_getopt.h"
53 # include <unistd.h> /* isatty() */
57 /* used for one-instance mode */
58 # include <dbus/dbus.h>
62 #include <vlc_media_library.h>
63 #include <vlc_playlist.h>
64 #include <vlc_interface.h>
66 #include <vlc_charset.h>
70 #include <vlc_modules.h>
74 #include "playlist/playlist_internal.h"
79 # include <libkern/OSAtomic.h>
84 /*****************************************************************************
85 * The evil global variables. We handle them with care, don't worry.
86 *****************************************************************************/
88 #if !defined(WIN32) && !defined(__OS2__)
89 static bool b_daemon = false;
92 /*****************************************************************************
94 *****************************************************************************/
95 static void GetFilenames ( libvlc_int_t *, unsigned, const char *const [] );
98 * Allocate a libvlc instance, initialize global data if needed
99 * It also initializes the threading system
101 libvlc_int_t * libvlc_InternalCreate( void )
103 libvlc_int_t *p_libvlc;
105 char *psz_env = NULL;
107 /* Now that the thread system is initialized, we don't have much, but
108 * at least we have variables */
109 /* Allocate a libvlc instance object */
110 p_libvlc = vlc_custom_create( (vlc_object_t *)NULL, sizeof (*priv),
112 if( p_libvlc == NULL )
115 priv = libvlc_priv (p_libvlc);
116 priv->p_playlist = NULL;
118 priv->p_dialog_provider = NULL;
121 /* Find verbosity from VLC_VERBOSE environment variable */
122 psz_env = getenv( "VLC_VERBOSE" );
123 if( psz_env != NULL )
124 priv->i_verbose = atoi( psz_env );
127 #if defined( HAVE_ISATTY ) && !defined( WIN32 )
128 priv->b_color = isatty( STDERR_FILENO ); /* 2 is for stderr */
130 priv->b_color = false;
133 /* Initialize mutexes */
134 vlc_mutex_init( &priv->ml_lock );
135 vlc_ExitInit( &priv->exit );
141 * Initialize a libvlc instance
142 * This function initializes a previously allocated libvlc instance:
144 * - gettext initialization
145 * - message queue, module bank and playlist initialization
146 * - configuration and commandline parsing
148 int libvlc_InternalInit( libvlc_int_t *p_libvlc, int i_argc,
149 const char *ppsz_argv[] )
151 libvlc_priv_t *priv = libvlc_priv (p_libvlc);
152 char * psz_modules = NULL;
153 char * psz_parser = NULL;
154 char * psz_control = NULL;
155 playlist_t *p_playlist = NULL;
158 /* System specific initialization code */
161 /* Initialize the module bank and load the configuration of the
162 * main module. We need to do this at this stage to be able to display
163 * a short help if required by the user. (short help == main module
167 /* Get command line options that affect module loading. */
168 if( config_LoadCmdLine( p_libvlc, i_argc, ppsz_argv, NULL ) )
170 module_EndBank (false);
173 priv->i_verbose = var_InheritInteger( p_libvlc, "verbose" );
175 /* Announce who we are (TODO: only first instance?) */
176 msg_Dbg( p_libvlc, "VLC media player - %s", VERSION_MESSAGE );
177 msg_Dbg( p_libvlc, "%s", COPYRIGHT_MESSAGE );
178 msg_Dbg( p_libvlc, "revision %s", psz_vlc_changeset );
179 msg_Dbg( p_libvlc, "configured with %s", CONFIGURE_LINE );
181 /* Load the builtins and plugins into the module_bank.
182 * We have to do it before config_Load*() because this also gets the
183 * list of configuration options exported by each module and loads their
185 size_t module_count = module_LoadPlugins (p_libvlc);
188 * Override default configuration with config file settings
190 if( !var_InheritBool( p_libvlc, "ignore-config" ) )
192 if( var_InheritBool( p_libvlc, "reset-config" ) )
193 config_SaveConfigFile( p_libvlc ); /* Save default config */
195 config_LoadConfigFile( p_libvlc );
199 * Override configuration with command line settings
202 if( config_LoadCmdLine( p_libvlc, i_argc, ppsz_argv, &vlc_optind ) )
205 MessageBox (NULL, TEXT("The command line options could not be parsed.\n"
206 "Make sure they are valid."), TEXT("VLC media player"),
209 module_EndBank (true);
212 priv->i_verbose = var_InheritInteger( p_libvlc, "verbose" );
215 * Support for gettext
217 #if defined( ENABLE_NLS ) \
218 && ( defined( HAVE_GETTEXT ) || defined( HAVE_INCLUDED_GETTEXT ) )
219 vlc_bindtextdomain (PACKAGE_NAME);
221 /*xgettext: Translate "C" to the language code: "fr", "en_GB", "nl", "ru"... */
222 msg_Dbg( p_libvlc, "translation test: code is \"%s\"", _("C") );
224 if (config_PrintHelp (VLC_OBJECT(p_libvlc)))
226 module_EndBank (true);
227 return VLC_EEXITSUCCESS;
230 if( module_count <= 1 )
232 msg_Err( p_libvlc, "No plugins found! Check your VLC installation.");
233 module_EndBank (true);
238 /* Check for daemon mode */
239 if( var_InheritBool( p_libvlc, "daemon" ) )
241 char *psz_pidfile = NULL;
243 if( daemon( 1, 0) != 0 )
245 msg_Err( p_libvlc, "Unable to fork vlc to daemon mode" );
246 module_EndBank (true);
251 /* lets check if we need to write the pidfile */
252 psz_pidfile = var_CreateGetNonEmptyString( p_libvlc, "pidfile" );
253 if( psz_pidfile != NULL )
256 pid_t i_pid = getpid ();
257 msg_Dbg( p_libvlc, "PID is %d, writing it to %s",
258 i_pid, psz_pidfile );
259 pidfile = vlc_fopen( psz_pidfile,"w" );
260 if( pidfile != NULL )
262 utf8_fprintf( pidfile, "%d", (int)i_pid );
267 msg_Err( p_libvlc, "cannot open pid file for writing: %s (%m)",
275 /* FIXME: could be replaced by using Unix sockets */
278 #define MPRIS_APPEND "/org/mpris/MediaPlayer2/TrackList/Append"
279 #define MPRIS_BUS_NAME "org.mpris.MediaPlayer2.vlc"
280 #define MPRIS_OBJECT_PATH "/org/mpris/MediaPlayer2"
281 #define MPRIS_TRACKLIST_INTERFACE "org.mpris.MediaPlayer2.TrackList"
283 dbus_threads_init_default();
285 if( var_InheritBool( p_libvlc, "one-instance" )
286 || ( var_InheritBool( p_libvlc, "one-instance-when-started-from-file" )
287 && var_InheritBool( p_libvlc, "started-from-file" ) ) )
289 /* Initialise D-Bus interface, check for other instances */
290 DBusConnection *p_conn = NULL;
291 DBusError dbus_error;
293 dbus_error_init( &dbus_error );
295 /* connect to the session bus */
296 p_conn = dbus_bus_get( DBUS_BUS_SESSION, &dbus_error );
299 msg_Err( p_libvlc, "Failed to connect to D-Bus session daemon: %s",
300 dbus_error.message );
301 dbus_error_free( &dbus_error );
305 /* check if VLC is available on the bus
306 * if not: D-Bus control is not enabled on the other
307 * instance and we can't pass MRLs to it */
308 if( !dbus_bus_name_has_owner( p_conn, MPRIS_BUS_NAME, &dbus_error ) )
310 if( dbus_error_is_set( &dbus_error ) )
312 msg_Err( p_libvlc, "D-Bus error: %s", dbus_error.message );
313 dbus_error_free( &dbus_error );
316 msg_Dbg( p_libvlc, "No Media Player is running. "
317 "Continuing normally." );
322 DBusMessage* p_dbus_msg = NULL;
323 DBusMessageIter dbus_args;
324 DBusPendingCall* p_dbus_pending = NULL;
327 msg_Warn( p_libvlc, "Another Media Player is running. Exiting");
329 for( i_input = vlc_optind; i_input < i_argc;i_input++ )
331 /* Skip input options, we can't pass them through D-Bus */
332 if( ppsz_argv[i_input][0] == ':' )
334 msg_Warn( p_libvlc, "Ignoring option %s",
335 ppsz_argv[i_input] );
339 /* We need to resolve relative paths in this instance */
341 if( strstr( psz_mrl, "://" ) )
342 psz_mrl = strdup( ppsz_argv[i_input] );
344 psz_mrl = vlc_path2uri( ppsz_argv[i_input], NULL );
345 const char *psz_after_track = MPRIS_APPEND;
347 if( psz_mrl == NULL )
349 msg_Dbg( p_libvlc, "Adds %s to the running Media Player",
352 p_dbus_msg = dbus_message_new_method_call(
353 MPRIS_BUS_NAME, MPRIS_OBJECT_PATH,
354 MPRIS_TRACKLIST_INTERFACE, "AddTrack" );
356 if ( NULL == p_dbus_msg )
358 msg_Err( p_libvlc, "D-Bus problem" );
365 dbus_message_iter_init_append( p_dbus_msg, &dbus_args );
366 if ( !dbus_message_iter_append_basic( &dbus_args,
367 DBUS_TYPE_STRING, &psz_mrl ) )
369 dbus_message_unref( p_dbus_msg );
376 if( !dbus_message_iter_append_basic( &dbus_args,
377 DBUS_TYPE_OBJECT_PATH, &psz_after_track ) )
379 dbus_message_unref( p_dbus_msg );
385 if( var_InheritBool( p_libvlc, "playlist-enqueue" ) )
388 if ( !dbus_message_iter_append_basic( &dbus_args,
389 DBUS_TYPE_BOOLEAN, &b_play ) )
391 dbus_message_unref( p_dbus_msg );
396 /* send message and get a handle for a reply */
397 if ( !dbus_connection_send_with_reply ( p_conn,
398 p_dbus_msg, &p_dbus_pending, -1 ) )
400 msg_Err( p_libvlc, "D-Bus problem" );
401 dbus_message_unref( p_dbus_msg );
406 if ( NULL == p_dbus_pending )
408 msg_Err( p_libvlc, "D-Bus problem" );
409 dbus_message_unref( p_dbus_msg );
413 dbus_connection_flush( p_conn );
414 dbus_message_unref( p_dbus_msg );
415 /* block until we receive a reply */
416 dbus_pending_call_block( p_dbus_pending );
417 dbus_pending_call_unref( p_dbus_pending );
418 } /* processes all command line MRLs */
425 /* we unreference the connection when we've finished with it */
426 if( p_conn ) dbus_connection_unref( p_conn );
430 #undef MPRIS_BUS_NAME
431 #undef MPRIS_OBJECT_PATH
432 #undef MPRIS_TRACKLIST_INTERFACE
437 * Message queue options
439 /* Last chance to set the verbosity. Once we start interfaces and other
440 * threads, verbosity becomes read-only. */
441 var_Create( p_libvlc, "verbose", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
442 if( var_InheritBool( p_libvlc, "quiet" ) )
444 var_SetInteger( p_libvlc, "verbose", -1 );
445 priv->i_verbose = -1;
447 vlc_threads_setup( p_libvlc );
450 priv->b_color = var_InheritBool( p_libvlc, "color" );
452 vlc_CPU_dump( VLC_OBJECT(p_libvlc) );
454 * Choose the best memcpy module
456 priv->p_memcpy_module = module_need( p_libvlc, "memcpy", "$memcpy", false );
457 /* Avoid being called "memcpy":*/
458 vlc_object_set_name( p_libvlc, "main" );
460 priv->b_stats = var_InheritBool( p_libvlc, "stats" );
463 * Initialize hotkey handling
465 priv->actions = vlc_InitActions( p_libvlc );
467 /* Create a variable for showing the fullscreen interface */
468 var_Create( p_libvlc, "intf-toggle-fscontrol", VLC_VAR_BOOL );
469 var_SetBool( p_libvlc, "intf-toggle-fscontrol", true );
471 /* Create a variable for the Boss Key */
472 var_Create( p_libvlc, "intf-boss", VLC_VAR_VOID );
474 /* Create a variable for showing the main interface */
475 var_Create( p_libvlc, "intf-show", VLC_VAR_BOOL );
477 /* Create a variable for showing the right click menu */
478 var_Create( p_libvlc, "intf-popupmenu", VLC_VAR_BOOL );
480 /* variables for signalling creation of new files */
481 var_Create( p_libvlc, "snapshot-file", VLC_VAR_STRING );
482 var_Create( p_libvlc, "record-file", VLC_VAR_STRING );
484 /* some default internal settings */
485 var_Create( p_libvlc, "window", VLC_VAR_STRING );
486 var_Create( p_libvlc, "user-agent", VLC_VAR_STRING );
487 var_SetString( p_libvlc, "user-agent", "(LibVLC "VERSION")" );
489 /* Initialize playlist and get commandline files */
490 p_playlist = playlist_Create( VLC_OBJECT(p_libvlc) );
493 msg_Err( p_libvlc, "playlist initialization failed" );
494 if( priv->p_memcpy_module != NULL )
496 module_unneed( p_libvlc, priv->p_memcpy_module );
498 module_EndBank (true);
502 /* System specific configuration */
503 system_Configure( p_libvlc, i_argc - vlc_optind, ppsz_argv + vlc_optind );
505 #if defined(MEDIA_LIBRARY)
507 if( var_GetBool( p_libvlc, "load-media-library-on-startup" ) )
509 priv->p_ml = ml_Create( VLC_OBJECT( p_libvlc ), NULL );
512 msg_Err( p_libvlc, "ML initialization failed" );
522 /* Add service discovery modules */
523 psz_modules = var_InheritString( p_libvlc, "services-discovery" );
526 char *p = psz_modules, *m;
527 while( ( m = strsep( &p, " :," ) ) != NULL )
528 playlist_ServicesDiscoveryAdd( p_playlist, m );
533 /* Initialize VLM if vlm-conf is specified */
534 psz_parser = var_CreateGetNonEmptyString( p_libvlc, "vlm-conf" );
537 priv->p_vlm = vlm_New( p_libvlc );
539 msg_Err( p_libvlc, "VLM initialization failed" );
545 * Load background interfaces
547 psz_modules = var_CreateGetNonEmptyString( p_libvlc, "extraintf" );
548 psz_control = var_CreateGetNonEmptyString( p_libvlc, "control" );
550 if( psz_modules && psz_control )
553 if( asprintf( &psz_tmp, "%s:%s", psz_modules, psz_control ) != -1 )
556 psz_modules = psz_tmp;
559 else if( psz_control )
562 psz_modules = strdup( psz_control );
565 psz_parser = psz_modules;
566 while ( psz_parser && *psz_parser )
568 char *psz_module, *psz_temp;
569 psz_module = psz_parser;
570 psz_parser = strchr( psz_module, ':' );
576 if( asprintf( &psz_temp, "%s,none", psz_module ) != -1)
578 intf_Create( p_libvlc, psz_temp );
586 * Always load the hotkeys interface if it exists
588 intf_Create( p_libvlc, "hotkeys,none" );
590 if( var_InheritBool( p_libvlc, "file-logging" )
592 && !var_InheritBool( p_libvlc, "syslog" )
596 intf_Create( p_libvlc, "logger,none" );
599 if( var_InheritBool( p_libvlc, "syslog" ) )
601 char *logmode = var_CreateGetNonEmptyString( p_libvlc, "logmode" );
602 var_SetString( p_libvlc, "logmode", "syslog" );
603 intf_Create( p_libvlc, "logger,none" );
607 var_SetString( p_libvlc, "logmode", logmode );
610 var_Destroy( p_libvlc, "logmode" );
614 if( var_InheritBool( p_libvlc, "network-synchronisation") )
616 intf_Create( p_libvlc, "netsync,none" );
620 var_Create( p_libvlc, "drawable-view-top", VLC_VAR_INTEGER );
621 var_Create( p_libvlc, "drawable-view-left", VLC_VAR_INTEGER );
622 var_Create( p_libvlc, "drawable-view-bottom", VLC_VAR_INTEGER );
623 var_Create( p_libvlc, "drawable-view-right", VLC_VAR_INTEGER );
624 var_Create( p_libvlc, "drawable-clip-top", VLC_VAR_INTEGER );
625 var_Create( p_libvlc, "drawable-clip-left", VLC_VAR_INTEGER );
626 var_Create( p_libvlc, "drawable-clip-bottom", VLC_VAR_INTEGER );
627 var_Create( p_libvlc, "drawable-clip-right", VLC_VAR_INTEGER );
628 var_Create( p_libvlc, "drawable-nsobject", VLC_VAR_ADDRESS );
630 #if defined (WIN32) || defined (__OS2__)
631 var_Create( p_libvlc, "drawable-hwnd", VLC_VAR_INTEGER );
635 * Get input filenames given as commandline arguments.
636 * We assume that the remaining parameters are filenames
637 * and their input options.
639 GetFilenames( p_libvlc, i_argc - vlc_optind, ppsz_argv + vlc_optind );
642 * Get --open argument
644 psz_val = var_InheritString( p_libvlc, "open" );
645 if ( psz_val != NULL )
647 playlist_AddExt( p_playlist, psz_val, NULL, PLAYLIST_INSERT, 0,
648 -1, 0, NULL, 0, true, pl_Unlocked );
656 * Cleanup a libvlc instance. The instance is not completely deallocated
657 * \param p_libvlc the instance to clean
659 void libvlc_InternalCleanup( libvlc_int_t *p_libvlc )
661 libvlc_priv_t *priv = libvlc_priv (p_libvlc);
662 playlist_t *p_playlist = libvlc_priv (p_libvlc)->p_playlist;
664 /* Deactivate the playlist */
665 msg_Dbg( p_libvlc, "deactivating the playlist" );
666 pl_Deactivate( p_libvlc );
668 /* Remove all services discovery */
669 msg_Dbg( p_libvlc, "removing all services discovery tasks" );
670 playlist_ServicesDiscoveryKillAll( p_playlist );
672 /* Ask the interfaces to stop and destroy them */
673 msg_Dbg( p_libvlc, "removing all interfaces" );
674 libvlc_Quit( p_libvlc );
675 intf_DestroyAll( p_libvlc );
678 /* Destroy VLM if created in libvlc_InternalInit */
681 vlm_Delete( priv->p_vlm );
685 #if defined(MEDIA_LIBRARY)
686 media_library_t* p_ml = priv->p_ml;
689 ml_Destroy( VLC_OBJECT( p_ml ) );
690 vlc_object_release( p_ml );
691 libvlc_priv(p_playlist->p_libvlc)->p_ml = NULL;
695 /* Free playlist now, all threads are gone */
696 playlist_Destroy( p_playlist );
698 msg_Dbg( p_libvlc, "removing stats" );
700 #if !defined( WIN32 ) && !defined( __OS2__ )
701 char* psz_pidfile = NULL;
705 psz_pidfile = var_CreateGetNonEmptyString( p_libvlc, "pidfile" );
706 if( psz_pidfile != NULL )
708 msg_Dbg( p_libvlc, "removing pid file %s", psz_pidfile );
709 if( unlink( psz_pidfile ) == -1 )
711 msg_Dbg( p_libvlc, "removing pid file %s: %m",
719 if( priv->p_memcpy_module )
721 module_unneed( p_libvlc, priv->p_memcpy_module );
722 priv->p_memcpy_module = NULL;
725 /* Save the configuration */
726 if( !var_InheritBool( p_libvlc, "ignore-config" ) )
727 config_AutoSaveConfigFile( VLC_OBJECT(p_libvlc) );
729 /* Free module bank. It is refcounted, so we call this each time */
730 module_EndBank (true);
732 vlc_DeinitActions( p_libvlc, priv->actions );
736 * Destroy everything.
737 * This function requests the running threads to finish, waits for their
738 * termination, and destroys their structure.
739 * It stops the thread systems: no instance can run after this has run
740 * \param p_libvlc the instance to destroy
742 void libvlc_InternalDestroy( libvlc_int_t *p_libvlc )
744 libvlc_priv_t *priv = libvlc_priv( p_libvlc );
748 /* Destroy mutexes */
749 vlc_ExitDestroy( &priv->exit );
750 vlc_mutex_destroy( &priv->ml_lock );
752 #ifndef NDEBUG /* Hack to dump leaked objects tree */
753 if( vlc_internals( p_libvlc )->i_refcount > 1 )
754 while( vlc_internals( p_libvlc )->i_refcount > 0 )
755 vlc_object_release( p_libvlc );
758 assert( vlc_internals( p_libvlc )->i_refcount == 1 );
759 vlc_object_release( p_libvlc );
763 * Add an interface plugin and run it
765 int libvlc_InternalAddIntf( libvlc_int_t *p_libvlc, char const *psz_module )
770 if( !psz_module ) /* requesting the default interface */
772 char *psz_interface = var_CreateGetNonEmptyString( p_libvlc, "intf" );
773 if( !psz_interface ) /* "intf" has not been set */
775 #if !defined( WIN32 ) && !defined( __OS2__ )
778 * We prefer the dummy interface if none is specified. */
779 psz_module = "dummy";
782 msg_Info( p_libvlc, "%s",
783 _("Running vlc with the default interface. "
784 "Use 'cvlc' to use vlc without interface.") );
786 free( psz_interface );
787 var_Destroy( p_libvlc, "intf" );
790 /* Try to create the interface */
791 int ret = intf_Create( p_libvlc, psz_module ? psz_module : "$intf" );
793 msg_Err( p_libvlc, "interface \"%s\" initialization failed",
794 psz_module ? psz_module : "default" );
798 /*****************************************************************************
799 * GetFilenames: parse command line options which are not flags
800 *****************************************************************************
801 * Parse command line for input files as well as their associated options.
802 * An option always follows its associated input and begins with a ":".
803 *****************************************************************************/
804 static void GetFilenames( libvlc_int_t *p_vlc, unsigned n,
805 const char *const args[] )
809 /* Count the input options */
810 unsigned i_options = 0;
812 while( args[--n][0] == ':' )
817 msg_Warn( p_vlc, "options %s without item", args[n] );
818 return; /* syntax!? */
823 if( strstr( args[n], "://" ) == NULL )
825 mrl = vlc_path2uri( args[n], NULL );
830 playlist_AddExt( pl_Get( p_vlc ), (mrl != NULL) ? mrl : args[n], NULL,
831 PLAYLIST_INSERT, 0, -1, i_options,
832 ( i_options ? &args[n + 1] : NULL ),
833 VLC_INPUT_OPTION_TRUSTED, true, pl_Unlocked );