/***************************************************************************** * media_discoverer.c: libvlc new API media discoverer functions ***************************************************************************** * Copyright (C) 2007 the VideoLAN team * $Id: c4163b3d586f5aaa6bf428d4a47b5f4b1df5b46a $ * * Authors: Pierre d'Herbemont * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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 General Public License for more details. * * You should have received a copy of the GNU 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. *****************************************************************************/ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include "libvlc_internal.h" #include "media_internal.h" // libvlc_media_new_from_input_item() #include "media_list_internal.h" // _libvlc_media_list_add_media() struct libvlc_media_discoverer_t { libvlc_event_manager_t * p_event_manager; libvlc_instance_t * p_libvlc_instance; services_discovery_t * p_sd; libvlc_media_list_t * p_mlist; bool running; vlc_dictionary_t catname_to_submedialist; }; /* * Private functions */ /************************************************************************** * services_discovery_item_added (Private) (VLC event callback) **************************************************************************/ static void services_discovery_item_added( const vlc_event_t * p_event, void * user_data ) { input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item; const char * psz_cat = p_event->u.services_discovery_item_added.psz_category; libvlc_media_t * p_md; libvlc_media_discoverer_t * p_mdis = user_data; libvlc_media_list_t * p_mlist = p_mdis->p_mlist; p_md = libvlc_media_new_from_input_item( p_mdis->p_libvlc_instance, p_item ); /* If we have a category, that mean we have to group the items having * that category in a media_list. */ if( psz_cat ) { p_mlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, psz_cat ); if( p_mlist == kVLCDictionaryNotFound ) { libvlc_media_t * p_catmd; p_catmd = libvlc_media_new_as_node( p_mdis->p_libvlc_instance, psz_cat ); p_mlist = libvlc_media_subitems( p_catmd ); p_mlist->b_read_only = true; /* Insert the newly created mlist in our dictionary */ vlc_dictionary_insert( &p_mdis->catname_to_submedialist, psz_cat, p_mlist ); /* Insert the md into the root list */ libvlc_media_list_lock( p_mdis->p_mlist ); _libvlc_media_list_add_media( p_mdis->p_mlist, p_catmd ); libvlc_media_list_unlock( p_mdis->p_mlist ); /* We don't release the mlist cause the dictionary * doesn't retain the object. But we release the md. */ libvlc_media_release( p_catmd ); } } libvlc_media_list_lock( p_mlist ); _libvlc_media_list_add_media( p_mlist, p_md ); libvlc_media_list_unlock( p_mlist ); libvlc_media_release( p_md ); } /************************************************************************** * services_discovery_item_removed (Private) (VLC event callback) **************************************************************************/ static void services_discovery_item_removed( const vlc_event_t * p_event, void * user_data ) { input_item_t * p_item = p_event->u.services_discovery_item_added.p_new_item; libvlc_media_t * p_md; libvlc_media_discoverer_t * p_mdis = user_data; int i, count = libvlc_media_list_count( p_mdis->p_mlist ); libvlc_media_list_lock( p_mdis->p_mlist ); for( i = 0; i < count; i++ ) { p_md = libvlc_media_list_item_at_index( p_mdis->p_mlist, i ); if( p_md->p_input_item == p_item ) { _libvlc_media_list_remove_index( p_mdis->p_mlist, i ); break; } } libvlc_media_list_unlock( p_mdis->p_mlist ); } /************************************************************************** * services_discovery_started (Private) (VLC event callback) **************************************************************************/ static void services_discovery_started( const vlc_event_t * p_event, void * user_data ) { VLC_UNUSED(p_event); libvlc_media_discoverer_t * p_mdis = user_data; libvlc_event_t event; p_mdis->running = true; event.type = libvlc_MediaDiscovererStarted; libvlc_event_send( p_mdis->p_event_manager, &event ); } /************************************************************************** * services_discovery_ended (Private) (VLC event callback) **************************************************************************/ static void services_discovery_ended( const vlc_event_t * p_event, void * user_data ) { VLC_UNUSED(p_event); libvlc_media_discoverer_t * p_mdis = user_data; libvlc_event_t event; p_mdis->running = false; event.type = libvlc_MediaDiscovererEnded; libvlc_event_send( p_mdis->p_event_manager, &event ); } /* * Public libvlc functions */ /************************************************************************** * new (Public) * * Init an object. **************************************************************************/ libvlc_media_discoverer_t * libvlc_media_discoverer_new_from_name( libvlc_instance_t * p_inst, const char * psz_name ) { libvlc_media_discoverer_t * p_mdis; p_mdis = malloc(sizeof(libvlc_media_discoverer_t)); if( unlikely(!p_mdis) ) { libvlc_printerr( "Not enough memory" ); return NULL; } p_mdis->p_libvlc_instance = p_inst; p_mdis->p_mlist = libvlc_media_list_new( p_inst ); p_mdis->p_mlist->b_read_only = true; p_mdis->running = false; vlc_dictionary_init( &p_mdis->catname_to_submedialist, 0 ); p_mdis->p_event_manager = libvlc_event_manager_new( p_mdis, p_inst ); if( unlikely(p_mdis->p_event_manager == NULL) ) { free( p_mdis ); return NULL; } libvlc_event_manager_register_event_type( p_mdis->p_event_manager, libvlc_MediaDiscovererStarted ); libvlc_event_manager_register_event_type( p_mdis->p_event_manager, libvlc_MediaDiscovererEnded ); p_mdis->p_sd = vlc_sd_Create( (vlc_object_t*)p_inst->p_libvlc_int, psz_name ); if( unlikely(p_mdis->p_sd == NULL) ) { libvlc_printerr( "%s: no such discovery module found", psz_name ); libvlc_media_list_release( p_mdis->p_mlist ); libvlc_event_manager_release( p_mdis->p_event_manager ); free( p_mdis ); return NULL; } vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryItemAdded, services_discovery_item_added, p_mdis ); vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryItemRemoved, services_discovery_item_removed, p_mdis ); vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryStarted, services_discovery_started, p_mdis ); vlc_event_attach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryEnded, services_discovery_ended, p_mdis ); /* Here we go */ if( !vlc_sd_Start( p_mdis->p_sd ) ) { libvlc_printerr( "%s: internal module error", p_mdis->p_sd->psz_name ); libvlc_media_list_release( p_mdis->p_mlist ); libvlc_event_manager_release( p_mdis->p_event_manager ); free( p_mdis ); return NULL; } return p_mdis; } /************************************************************************** * release (Public) **************************************************************************/ void libvlc_media_discoverer_release( libvlc_media_discoverer_t * p_mdis ) { int i; vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryItemAdded, services_discovery_item_added, p_mdis ); vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryItemRemoved, services_discovery_item_removed, p_mdis ); vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryStarted, services_discovery_started, p_mdis ); vlc_event_detach( services_discovery_EventManager( p_mdis->p_sd ), vlc_ServicesDiscoveryEnded, services_discovery_ended, p_mdis ); libvlc_media_list_release( p_mdis->p_mlist ); vlc_sd_StopAndDestroy( p_mdis->p_sd ); /* Free catname_to_submedialist and all the mlist */ char ** all_keys = vlc_dictionary_all_keys( &p_mdis->catname_to_submedialist ); for( i = 0; all_keys[i]; i++ ) { libvlc_media_list_t * p_catmlist = vlc_dictionary_value_for_key( &p_mdis->catname_to_submedialist, all_keys[i] ); libvlc_media_list_release( p_catmlist ); free( all_keys[i] ); } free( all_keys ); vlc_dictionary_clear( &p_mdis->catname_to_submedialist, NULL, NULL ); libvlc_event_manager_release( p_mdis->p_event_manager ); free( p_mdis ); } /************************************************************************** * localized_name (Public) **************************************************************************/ char * libvlc_media_discoverer_localized_name( libvlc_media_discoverer_t * p_mdis ) { return services_discovery_GetLocalizedName( p_mdis->p_sd ); } /************************************************************************** * media_list (Public) **************************************************************************/ libvlc_media_list_t * libvlc_media_discoverer_media_list( libvlc_media_discoverer_t * p_mdis ) { libvlc_media_list_retain( p_mdis->p_mlist ); return p_mdis->p_mlist; } /************************************************************************** * event_manager (Public) **************************************************************************/ libvlc_event_manager_t * libvlc_media_discoverer_event_manager( libvlc_media_discoverer_t * p_mdis ) { return p_mdis->p_event_manager; } /************************************************************************** * running (Public) **************************************************************************/ int libvlc_media_discoverer_is_running( libvlc_media_discoverer_t * p_mdis ) { return p_mdis->running; }