| /***************************************************************************** |
| * libvlc.c: libvlc instances creation and deletion, interfaces handling |
| ***************************************************************************** |
| * Copyright (C) 1998-2008 VLC authors and VideoLAN |
| * $Id: 3468e0e5b2ef424ac53c2ad6b69d2a3f8382cd28 $ |
| * |
| * Authors: Vincent Seguin <[email protected]> |
| * Samuel Hocevar <[email protected]> |
| * Gildas Bazin <[email protected]> |
| * Derk-Jan Hartman <hartman at videolan dot org> |
| * Rémi Denis-Courmont <rem # videolan : org> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU Lesser General Public License as published by |
| * the Free Software Foundation; either version 2.1 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. |
| *****************************************************************************/ |
| |
| /** \file |
| * This file contains functions to create and destroy libvlc instances |
| */ |
| |
| /***************************************************************************** |
| * Preamble |
| *****************************************************************************/ |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| #include <vlc_common.h> |
| #include "../lib/libvlc_internal.h" |
| #include <vlc_input.h> |
| |
| #include "modules/modules.h" |
| #include "config/configuration.h" |
| #include "playlist/preparser.h" |
| |
| #include <stdio.h> /* sprintf() */ |
| #include <string.h> |
| #include <stdlib.h> /* free() */ |
| #include <errno.h> |
| |
| #include "config/vlc_getopt.h" |
| |
| #ifdef HAVE_DBUS |
| /* used for one-instance mode */ |
| # include <dbus/dbus.h> |
| #endif |
| |
| |
| #include <vlc_playlist.h> |
| #include <vlc_interface.h> |
| |
| #include <vlc_charset.h> |
| #include <vlc_dialog.h> |
| #include <vlc_keystore.h> |
| #include <vlc_fs.h> |
| #include <vlc_cpu.h> |
| #include <vlc_url.h> |
| #include <vlc_modules.h> |
| |
| #include "libvlc.h" |
| #include "playlist/playlist_internal.h" |
| #include "misc/variables.h" |
| |
| #include <vlc_vlm.h> |
| |
| #ifdef __APPLE__ |
| # include <libkern/OSAtomic.h> |
| #endif |
| |
| #include <assert.h> |
| |
| /***************************************************************************** |
| * Local prototypes |
| *****************************************************************************/ |
| static void GetFilenames ( libvlc_int_t *, unsigned, const char *const [] ); |
| |
| /** |
| * Allocate a blank libvlc instance, also setting the exit handler. |
| * Vlc's threading system must have been initialized first |
| */ |
| libvlc_int_t * libvlc_InternalCreate( void ) |
| { |
| libvlc_int_t *p_libvlc; |
| libvlc_priv_t *priv; |
| |
| /* Allocate a libvlc instance object */ |
| p_libvlc = vlc_custom_create( (vlc_object_t *)NULL, sizeof (*priv), |
| "libvlc" ); |
| if( p_libvlc == NULL ) |
| return NULL; |
| |
| priv = libvlc_priv (p_libvlc); |
| priv->playlist = NULL; |
| priv->p_vlm = NULL; |
| |
| vlc_ExitInit( &priv->exit ); |
| |
| return p_libvlc; |
| } |
| |
| /** |
| * Initialize a libvlc instance |
| * This function initializes a previously allocated libvlc instance: |
| * - CPU detection |
| * - gettext initialization |
| * - message queue, module bank and playlist initialization |
| * - configuration and commandline parsing |
| */ |
| int libvlc_InternalInit( libvlc_int_t *p_libvlc, int i_argc, |
| const char *ppsz_argv[] ) |
| { |
| libvlc_priv_t *priv = libvlc_priv (p_libvlc); |
| char * psz_modules = NULL; |
| char * psz_parser = NULL; |
| char * psz_control = NULL; |
| char *psz_val; |
| |
| /* System specific initialization code */ |
| system_Init(); |
| |
| vlc_LogPreinit(p_libvlc); |
| |
| /* Initialize the module bank and load the configuration of the |
| * core module. We need to do this at this stage to be able to display |
| * a short help if required by the user. (short help == core module |
| * options) */ |
| module_InitBank (); |
| |
| /* Get command line options that affect module loading. */ |
| if( config_LoadCmdLine( p_libvlc, i_argc, ppsz_argv, NULL ) ) |
| { |
| module_EndBank (false); |
| return VLC_EGENERIC; |
| } |
| |
| vlc_threads_setup (p_libvlc); |
| |
| /* Load the builtins and plugins into the module_bank. |
| * We have to do it before config_Load*() because this also gets the |
| * list of configuration options exported by each module and loads their |
| * default values. */ |
| size_t module_count = module_LoadPlugins (p_libvlc); |
| |
| /* |
| * Override default configuration with config file settings |
| */ |
| if( !var_InheritBool( p_libvlc, "ignore-config" ) ) |
| { |
| if( var_InheritBool( p_libvlc, "reset-config" ) ) |
| config_SaveConfigFile( p_libvlc ); /* Save default config */ |
| else |
| config_LoadConfigFile( p_libvlc ); |
| } |
| |
| /* |
| * Override configuration with command line settings |
| */ |
| int vlc_optind; |
| if( config_LoadCmdLine( p_libvlc, i_argc, ppsz_argv, &vlc_optind ) ) |
| { |
| vlc_LogDeinit (p_libvlc); |
| module_EndBank (true); |
| return VLC_EGENERIC; |
| } |
| |
| vlc_LogInit(p_libvlc); |
| |
| /* |
| * Support for gettext |
| */ |
| #if defined( ENABLE_NLS ) \ |
| && ( defined( HAVE_GETTEXT ) || defined( HAVE_INCLUDED_GETTEXT ) ) |
| vlc_bindtextdomain (PACKAGE_NAME); |
| #endif |
| /*xgettext: Translate "C" to the language code: "fr", "en_GB", "nl", "ru"... */ |
| msg_Dbg( p_libvlc, "translation test: code is \"%s\"", _("C") ); |
| |
| if (config_PrintHelp (VLC_OBJECT(p_libvlc))) |
| { |
| module_EndBank (true); |
| exit(0); |
| } |
| |
| if( module_count <= 1 ) |
| { |
| msg_Err( p_libvlc, "No plugins found! Check your VLC installation."); |
| vlc_LogDeinit (p_libvlc); |
| module_EndBank (true); |
| return VLC_ENOMOD; |
| } |
| |
| #ifdef HAVE_DAEMON |
| /* Check for daemon mode */ |
| if( var_InheritBool( p_libvlc, "daemon" ) ) |
| { |
| if( daemon( 1, 0) != 0 ) |
| { |
| msg_Err( p_libvlc, "Unable to fork vlc to daemon mode" ); |
| vlc_LogDeinit (p_libvlc); |
| module_EndBank (true); |
| return VLC_ENOMEM; |
| } |
| |
| /* lets check if we need to write the pidfile */ |
| char *pidfile = var_InheritString( p_libvlc, "pidfile" ); |
| if( pidfile != NULL ) |
| { |
| FILE *stream = vlc_fopen( pidfile, "w" ); |
| if( stream != NULL ) |
| { |
| fprintf( stream, "%d", (int)getpid() ); |
| fclose( stream ); |
| msg_Dbg( p_libvlc, "written PID file %s", pidfile ); |
| } |
| else |
| msg_Err( p_libvlc, "cannot write PID file %s: %s", |
| pidfile, vlc_strerror_c(errno) ); |
| free( pidfile ); |
| } |
| } |
| else |
| { |
| var_Create( p_libvlc, "pidfile", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "pidfile", "" ); |
| } |
| #endif |
| |
| if( libvlc_InternalDialogInit( p_libvlc ) != VLC_SUCCESS ) |
| { |
| vlc_LogDeinit (p_libvlc); |
| module_EndBank (true); |
| return VLC_ENOMEM; |
| } |
| if( libvlc_InternalKeystoreInit( p_libvlc ) != VLC_SUCCESS ) |
| msg_Warn( p_libvlc, "memory keystore init failed" ); |
| |
| /* FIXME: could be replaced by using Unix sockets */ |
| #ifdef HAVE_DBUS |
| |
| #define MPRIS_APPEND "/org/mpris/MediaPlayer2/TrackList/Append" |
| #define MPRIS_BUS_NAME "org.mpris.MediaPlayer2.vlc" |
| #define MPRIS_OBJECT_PATH "/org/mpris/MediaPlayer2" |
| #define MPRIS_TRACKLIST_INTERFACE "org.mpris.MediaPlayer2.TrackList" |
| |
| if( var_InheritBool( p_libvlc, "one-instance" ) |
| || ( var_InheritBool( p_libvlc, "one-instance-when-started-from-file" ) |
| && var_InheritBool( p_libvlc, "started-from-file" ) ) ) |
| { |
| for( int i = vlc_optind; i < i_argc; i++ ) |
| if( ppsz_argv[i][0] == ':' ) |
| { |
| msg_Err( p_libvlc, "item option %s incompatible with single instance", |
| ppsz_argv[i] ); |
| goto dbus_out; |
| } |
| |
| /* Initialise D-Bus interface, check for other instances */ |
| dbus_threads_init_default(); |
| |
| DBusError err; |
| dbus_error_init( &err ); |
| |
| /* connect to the session bus */ |
| DBusConnection *conn = dbus_bus_get( DBUS_BUS_SESSION, &err ); |
| if( conn == NULL ) |
| { |
| msg_Err( p_libvlc, "Failed to connect to D-Bus session daemon: %s", |
| err.message ); |
| dbus_error_free( &err ); |
| goto dbus_out; |
| } |
| |
| /* check if VLC is available on the bus |
| * if not: D-Bus control is not enabled on the other |
| * instance and we can't pass MRLs to it */ |
| /* FIXME: This check is totally brain-dead and buggy. */ |
| if( !dbus_bus_name_has_owner( conn, MPRIS_BUS_NAME, &err ) ) |
| { |
| dbus_connection_unref( conn ); |
| if( dbus_error_is_set( &err ) ) |
| { |
| msg_Err( p_libvlc, "D-Bus error: %s", err.message ); |
| } |
| else |
| msg_Dbg( p_libvlc, "No media player running. Continuing normally." ); |
| dbus_error_free( &err ); |
| goto dbus_out; |
| } |
| |
| const dbus_bool_t play = !var_InheritBool( p_libvlc, "playlist-enqueue" ); |
| |
| msg_Warn( p_libvlc, "media player running. Exiting..."); |
| for( int i = vlc_optind; i < i_argc; i++ ) |
| { |
| DBusMessage *msg = dbus_message_new_method_call( |
| MPRIS_BUS_NAME, MPRIS_OBJECT_PATH, MPRIS_TRACKLIST_INTERFACE, "AddTrack" ); |
| if( unlikely(msg == NULL) ) |
| continue; |
| |
| /* We need to resolve relative paths in this instance */ |
| char *mrl; |
| if( strstr( ppsz_argv[i], "://" ) ) |
| mrl = strdup( ppsz_argv[i] ); |
| else |
| mrl = vlc_path2uri( ppsz_argv[i], NULL ); |
| if( mrl == NULL ) |
| { |
| dbus_message_unref( msg ); |
| continue; |
| } |
| |
| const char *after_track = MPRIS_APPEND; |
| |
| /* append MRLs */ |
| if( !dbus_message_append_args( msg, DBUS_TYPE_STRING, &mrl, |
| DBUS_TYPE_OBJECT_PATH, &after_track, |
| DBUS_TYPE_BOOLEAN, &play, |
| DBUS_TYPE_INVALID ) ) |
| { |
| dbus_message_unref( msg ); |
| msg = NULL; |
| free( mrl ); |
| continue; |
| } |
| |
| msg_Dbg( p_libvlc, "Adds %s to the running media player", mrl ); |
| free( mrl ); |
| |
| /* send message and get a handle for a reply */ |
| DBusMessage *reply = dbus_connection_send_with_reply_and_block( conn, msg, -1, |
| &err ); |
| dbus_message_unref( msg ); |
| if( reply == NULL ) |
| { |
| msg_Err( p_libvlc, "D-Bus error: %s", err.message ); |
| continue; |
| } |
| dbus_message_unref( reply ); |
| } |
| /* we unreference the connection when we've finished with it */ |
| dbus_connection_unref( conn ); |
| exit( 0 ); |
| } |
| #undef MPRIS_APPEND |
| #undef MPRIS_BUS_NAME |
| #undef MPRIS_OBJECT_PATH |
| #undef MPRIS_TRACKLIST_INTERFACE |
| dbus_out: |
| #endif // HAVE_DBUS |
| |
| vlc_CPU_dump( VLC_OBJECT(p_libvlc) ); |
| |
| priv->b_stats = var_InheritBool( p_libvlc, "stats" ); |
| |
| /* |
| * Initialize hotkey handling |
| */ |
| priv->actions = vlc_InitActions( p_libvlc ); |
| |
| /* |
| * Meta data handling |
| */ |
| priv->parser = playlist_preparser_New(VLC_OBJECT(p_libvlc)); |
| |
| /* Create a variable for showing the fullscreen interface */ |
| var_Create( p_libvlc, "intf-toggle-fscontrol", VLC_VAR_BOOL ); |
| var_SetBool( p_libvlc, "intf-toggle-fscontrol", true ); |
| |
| /* Create a variable for the Boss Key */ |
| var_Create( p_libvlc, "intf-boss", VLC_VAR_VOID ); |
| |
| /* Create a variable for showing the main interface */ |
| var_Create( p_libvlc, "intf-show", VLC_VAR_BOOL ); |
| |
| /* Create a variable for showing the right click menu */ |
| var_Create( p_libvlc, "intf-popupmenu", VLC_VAR_BOOL ); |
| |
| /* variables for signalling creation of new files */ |
| var_Create( p_libvlc, "snapshot-file", VLC_VAR_STRING ); |
| var_Create( p_libvlc, "record-file", VLC_VAR_STRING ); |
| |
| /* some default internal settings */ |
| var_Create( p_libvlc, "window", VLC_VAR_STRING ); |
| /* NOTE: Because the playlist and interfaces start before this function |
| * returns control to the application (DESIGN BUG!), all these variables |
| * must be created (in place of libvlc_new()) and set to VLC defaults |
| * (in place of VLC main()) *here*. */ |
| var_Create( p_libvlc, "user-agent", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "user-agent", |
| "VLC media player (LibVLC "VERSION")" ); |
| var_Create( p_libvlc, "http-user-agent", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "http-user-agent", |
| "VLC/"PACKAGE_VERSION" LibVLC/"PACKAGE_VERSION ); |
| var_Create( p_libvlc, "app-icon-name", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "app-icon-name", PACKAGE_NAME ); |
| var_Create( p_libvlc, "app-id", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "app-id", "org.VideoLAN.VLC" ); |
| var_Create( p_libvlc, "app-version", VLC_VAR_STRING ); |
| var_SetString( p_libvlc, "app-version", PACKAGE_VERSION ); |
| |
| /* System specific configuration */ |
| system_Configure( p_libvlc, i_argc - vlc_optind, ppsz_argv + vlc_optind ); |
| |
| #ifdef ENABLE_VLM |
| /* Initialize VLM if vlm-conf is specified */ |
| psz_parser = var_CreateGetNonEmptyString( p_libvlc, "vlm-conf" ); |
| if( psz_parser ) |
| { |
| priv->p_vlm = vlm_New( p_libvlc ); |
| if( !priv->p_vlm ) |
| msg_Err( p_libvlc, "VLM initialization failed" ); |
| } |
| free( psz_parser ); |
| #endif |
| |
| /* |
| * Load background interfaces |
| */ |
| psz_modules = var_CreateGetNonEmptyString( p_libvlc, "extraintf" ); |
| psz_control = var_CreateGetNonEmptyString( p_libvlc, "control" ); |
| |
| if( psz_modules && psz_control ) |
| { |
| char* psz_tmp; |
| if( asprintf( &psz_tmp, "%s:%s", psz_modules, psz_control ) != -1 ) |
| { |
| free( psz_modules ); |
| psz_modules = psz_tmp; |
| } |
| } |
| else if( psz_control ) |
| { |
| free( psz_modules ); |
| psz_modules = strdup( psz_control ); |
| } |
| |
| psz_parser = psz_modules; |
| while ( psz_parser && *psz_parser ) |
| { |
| char *psz_module, *psz_temp; |
| psz_module = psz_parser; |
| psz_parser = strchr( psz_module, ':' ); |
| if ( psz_parser ) |
| { |
| *psz_parser = '\0'; |
| psz_parser++; |
| } |
| if( asprintf( &psz_temp, "%s,none", psz_module ) != -1) |
| { |
| libvlc_InternalAddIntf( p_libvlc, psz_temp ); |
| free( psz_temp ); |
| } |
| } |
| free( psz_modules ); |
| free( psz_control ); |
| |
| if( var_InheritBool( p_libvlc, "network-synchronisation") ) |
| libvlc_InternalAddIntf( p_libvlc, "netsync,none" ); |
| |
| #ifdef __APPLE__ |
| var_Create( p_libvlc, "drawable-view-top", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-view-left", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-view-bottom", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-view-right", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-clip-top", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-clip-left", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-clip-bottom", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-clip-right", VLC_VAR_INTEGER ); |
| var_Create( p_libvlc, "drawable-nsobject", VLC_VAR_ADDRESS ); |
| #endif |
| |
| /* |
| * Get input filenames given as commandline arguments. |
| * We assume that the remaining parameters are filenames |
| * and their input options. |
| */ |
| GetFilenames( p_libvlc, i_argc - vlc_optind, ppsz_argv + vlc_optind ); |
| |
| /* |
| * Get --open argument |
| */ |
| psz_val = var_InheritString( p_libvlc, "open" ); |
| if ( psz_val != NULL ) |
| { |
| intf_InsertItem( p_libvlc, psz_val, 0, NULL, 0 ); |
| free( psz_val ); |
| } |
| |
| return VLC_SUCCESS; |
| } |
| |
| /** |
| * Cleanup a libvlc instance. The instance is not completely deallocated |
| * \param p_libvlc the instance to clean |
| */ |
| void libvlc_InternalCleanup( libvlc_int_t *p_libvlc ) |
| { |
| libvlc_priv_t *priv = libvlc_priv (p_libvlc); |
| |
| /* Ask the interfaces to stop and destroy them */ |
| msg_Dbg( p_libvlc, "removing all interfaces" ); |
| libvlc_Quit( p_libvlc ); |
| intf_DestroyAll( p_libvlc ); |
| |
| libvlc_InternalDialogClean( p_libvlc ); |
| libvlc_InternalKeystoreClean( p_libvlc ); |
| |
| #ifdef ENABLE_VLM |
| /* Destroy VLM if created in libvlc_InternalInit */ |
| if( priv->p_vlm ) |
| { |
| vlm_Delete( priv->p_vlm ); |
| } |
| #endif |
| |
| #if !defined( _WIN32 ) && !defined( __OS2__ ) |
| char *pidfile = var_InheritString( p_libvlc, "pidfile" ); |
| if( pidfile != NULL ) |
| { |
| msg_Dbg( p_libvlc, "removing PID file %s", pidfile ); |
| if( unlink( pidfile ) ) |
| msg_Warn( p_libvlc, "cannot remove PID file %s: %s", |
| pidfile, vlc_strerror_c(errno) ); |
| free( pidfile ); |
| } |
| #endif |
| |
| if (priv->parser != NULL) |
| playlist_preparser_Delete(priv->parser); |
| |
| vlc_DeinitActions( p_libvlc, priv->actions ); |
| |
| /* Save the configuration */ |
| if( !var_InheritBool( p_libvlc, "ignore-config" ) ) |
| config_AutoSaveConfigFile( VLC_OBJECT(p_libvlc) ); |
| |
| /* Free module bank. It is refcounted, so we call this each time */ |
| vlc_LogDeinit (p_libvlc); |
| module_EndBank (true); |
| #if defined(_WIN32) || defined(__OS2__) |
| system_End( ); |
| #endif |
| } |
| |
| /** |
| * Destroy everything. |
| * This function requests the running threads to finish, waits for their |
| * termination, and destroys their structure. |
| * It stops the thread systems: no instance can run after this has run |
| * \param p_libvlc the instance to destroy |
| */ |
| void libvlc_InternalDestroy( libvlc_int_t *p_libvlc ) |
| { |
| libvlc_priv_t *priv = libvlc_priv( p_libvlc ); |
| |
| vlc_ExitDestroy( &priv->exit ); |
| |
| assert( atomic_load(&(vlc_internals(p_libvlc)->refs)) == 1 ); |
| vlc_object_release( p_libvlc ); |
| } |
| |
| /***************************************************************************** |
| * GetFilenames: parse command line options which are not flags |
| ***************************************************************************** |
| * Parse command line for input files as well as their associated options. |
| * An option always follows its associated input and begins with a ":". |
| *****************************************************************************/ |
| static void GetFilenames( libvlc_int_t *p_vlc, unsigned n, |
| const char *const args[] ) |
| { |
| while( n > 0 ) |
| { |
| /* Count the input options */ |
| unsigned i_options = 0; |
| |
| while( args[--n][0] == ':' ) |
| { |
| i_options++; |
| if( n == 0 ) |
| { |
| msg_Warn( p_vlc, "options %s without item", args[n] ); |
| return; /* syntax!? */ |
| } |
| } |
| |
| char *mrl = NULL; |
| if( strstr( args[n], "://" ) == NULL ) |
| { |
| mrl = vlc_path2uri( args[n], NULL ); |
| if( !mrl ) |
| continue; |
| } |
| |
| intf_InsertItem( p_vlc, (mrl != NULL) ? mrl : args[n], i_options, |
| ( i_options ? &args[n + 1] : NULL ), |
| VLC_INPUT_OPTION_TRUSTED ); |
| free( mrl ); |
| } |
| } |
| |
| /** |
| * Requests extraction of the meta data for an input item (a.k.a. preparsing). |
| * The actual extraction is asynchronous. |
| */ |
| int libvlc_MetaRequest(libvlc_int_t *libvlc, input_item_t *item, |
| input_item_meta_request_option_t i_options) |
| { |
| libvlc_priv_t *priv = libvlc_priv(libvlc); |
| |
| if (unlikely(priv->parser == NULL)) |
| return VLC_ENOMEM; |
| |
| vlc_mutex_lock( &item->lock ); |
| if( item->i_preparse_depth == 0 ) |
| item->i_preparse_depth = 1; |
| if( i_options & META_REQUEST_OPTION_DO_INTERACT ) |
| item->b_preparse_interact = true; |
| vlc_mutex_unlock( &item->lock ); |
| playlist_preparser_Push(priv->parser, item, i_options); |
| return VLC_SUCCESS; |
| } |
| |
| /** |
| * Requests retrieving/downloading art for an input item. |
| * The retrieval is performed asynchronously. |
| */ |
| int libvlc_ArtRequest(libvlc_int_t *libvlc, input_item_t *item, |
| input_item_meta_request_option_t i_options) |
| { |
| libvlc_priv_t *priv = libvlc_priv(libvlc); |
| |
| if (unlikely(priv->parser == NULL)) |
| return VLC_ENOMEM; |
| |
| playlist_preparser_fetcher_Push(priv->parser, item, i_options); |
| return VLC_SUCCESS; |
| } |
