1 /*****************************************************************************
2 * vlc_services_discovery.h : Services Discover functions
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 #ifndef VLC_SERVICES_DISCOVERY_H_
25 #define VLC_SERVICES_DISCOVERY_H_
27 #include <vlc_input.h>
28 #include <vlc_events.h>
29 #include <vlc_probe.h>
33 * This file lists functions and structures for service discovery (SD) in vlc
43 struct services_discovery_t
46 module_t * p_module; /**< Loaded module */
49 /* You should access it through setters, outside of the core */
50 vlc_event_manager_t event_manager;
52 char *psz_name; /**< Main name of the SD */
53 config_chain_t *p_cfg; /**< Configuration for the SD */
56 * \see services_discovery_command_e
58 int ( *pf_control ) ( services_discovery_t *, int, va_list );
60 services_discovery_sys_t *p_sys; /**< Custom private data */
64 * Service discovery categories
66 enum services_discovery_category_e
68 SD_CAT_DEVICES = 1, /**< Devices, like portable music players */
69 SD_CAT_LAN, /**< LAN/WAN services, like Upnp or SAP */
70 SD_CAT_INTERNET, /**< Internet or Website channels services */
71 SD_CAT_MYCOMPUTER /**< Computer services, like Discs or Apps */
75 * Service discovery control commands
77 enum services_discovery_command_e
79 SD_CMD_SEARCH = 1, /**< arg1 = query */
80 SD_CMD_DESCRIPTOR /**< arg1 = services_discovery_descriptor_t* */
84 * Service discovery capabilities
86 enum services_discovery_capability_e
88 SD_CAP_SEARCH = 1 /**< One can search in the SD */
92 * Service discovery descriptor
96 char *psz_short_desc; /**< The short description, human-readable */
97 char *psz_icon_url; /**< URL to the icon that represents it */
98 char *psz_url; /**< URL for the service */
99 int i_capabilities; /**< \see services_discovery_capability_e */
100 } services_discovery_descriptor_t;
102 /***********************************************************************
104 ***********************************************************************/
107 * Ask for a research in the SD
108 * @param p_sd: the Service Discovery
109 * @param i_control: the command to issue
110 * @param args: the argument list
111 * @return VLC_SUCCESS in case of success, the error code overwise
113 static inline int vlc_sd_control( services_discovery_t *p_sd, int i_control, va_list args )
115 if( p_sd->pf_control )
116 return p_sd->pf_control( p_sd, i_control, args );
121 /* Get the services discovery modules names to use in Create(), in a null
122 * terminated string array. Array and string must be freed after use. */
123 VLC_EXPORT( char **, vlc_sd_GetNames, ( vlc_object_t *, char ***, int ** ) LIBVLC_USED );
124 #define vlc_sd_GetNames(obj, pln, pcat ) \
125 vlc_sd_GetNames(VLC_OBJECT(obj), pln, pcat)
127 /* Creation of a services_discovery object */
128 VLC_EXPORT( services_discovery_t *, vlc_sd_Create, ( vlc_object_t *, const char * ) LIBVLC_USED );
129 VLC_EXPORT( bool, vlc_sd_Start, ( services_discovery_t * ) );
130 VLC_EXPORT( void, vlc_sd_Stop, ( services_discovery_t * ) );
131 VLC_EXPORT( void, vlc_sd_Destroy, ( services_discovery_t * ) );
134 * Helper to stop and destroy the Service Discovery
136 static inline void vlc_sd_StopAndDestroy( services_discovery_t * p_this )
138 vlc_sd_Stop( p_this );
139 vlc_sd_Destroy( p_this );
142 /* Read info from discovery object */
143 VLC_EXPORT( char *, services_discovery_GetLocalizedName, ( services_discovery_t * p_this ) LIBVLC_USED );
145 /* Receive event notification (preferred way to get new items) */
146 VLC_EXPORT( vlc_event_manager_t *, services_discovery_EventManager, ( services_discovery_t * p_this ) LIBVLC_USED );
148 /* Used by services_discovery to post update about their items */
149 /* About the psz_category, it is a legacy way to add info to the item,
150 * for more options, directly set the (meta) data on the input item */
151 VLC_EXPORT( void, services_discovery_AddItem, ( services_discovery_t * p_this, input_item_t * p_item, const char * psz_category ) );
152 VLC_EXPORT( void, services_discovery_RemoveItem, ( services_discovery_t * p_this, input_item_t * p_item ) );
157 VLC_EXPORT(int, vlc_sd_probe_Add, (vlc_probe_t *, const char *, const char *, int category));
159 #define VLC_SD_PROBE_SUBMODULE \
161 set_capability( "services probe", 100 ) \
162 set_callbacks( vlc_sd_probe_Open, NULL )
164 #define VLC_SD_PROBE_HELPER(name, longname, cat) \
165 static int vlc_sd_probe_Open (vlc_object_t *obj) \
167 return vlc_sd_probe_Add ((struct vlc_probe_t *)obj, \
168 name "{longname=\"" longname "\"}", \