1 /*****************************************************************************
2 * configuration.h : configuration management module
3 * This file describes the programming interface for the configuration module.
4 * It includes functions allowing to declare, get or set configuration options.
5 *****************************************************************************
6 * Copyright (C) 1999-2006 the VideoLAN team
9 * Authors: Gildas Bazin <gbazin@videolan.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 #if !defined( __LIBVLC__ )
27 #error You are not libvlc or one of its plugins. You cannot include this file
30 #ifndef _VLC_CONFIGURATION_H
31 #define _VLC_CONFIGURATION_H 1
38 /*****************************************************************************
39 * Macros used to build the configuration structure.
40 *****************************************************************************/
42 /* Configuration hint types */
45 #define CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
46 #define CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
47 #define CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
48 #define CONFIG_HINT_USAGE 0x0005 /* Usage information */
50 #define CONFIG_CATEGORY 0x0006 /* Set category */
51 #define CONFIG_SUBCATEGORY 0x0007 /* Set subcategory */
52 #define CONFIG_SECTION 0x0008 /* Start of new section */
54 #define CONFIG_HINT 0x000F
56 /* Configuration item types */
57 #define CONFIG_ITEM_STRING 0x0010 /* String option */
58 #define CONFIG_ITEM_FILE 0x0020 /* File option */
59 #define CONFIG_ITEM_MODULE 0x0030 /* Module option */
60 #define CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
61 #define CONFIG_ITEM_BOOL 0x0050 /* Bool option */
62 #define CONFIG_ITEM_FLOAT 0x0060 /* Float option */
63 #define CONFIG_ITEM_DIRECTORY 0x0070 /* Directory option */
64 #define CONFIG_ITEM_KEY 0x0080 /* Hot key option */
65 #define CONFIG_ITEM_MODULE_CAT 0x0090 /* Module option */
66 #define CONFIG_ITEM_MODULE_LIST 0x00A0 /* Module option */
67 #define CONFIG_ITEM_MODULE_LIST_CAT 0x00B0 /* Module option */
68 #define CONFIG_ITEM_FONT 0x00C0 /* Font option */
70 #define CONFIG_ITEM 0x00F0
72 /*******************************************************************
73 * All predefined categories and subcategories
74 *******************************************************************/
75 #define CAT_INTERFACE 1
76 #define SUBCAT_INTERFACE_GENERAL 101
77 #define SUBCAT_INTERFACE_MAIN 102
78 #define SUBCAT_INTERFACE_CONTROL 103
79 #define SUBCAT_INTERFACE_HOTKEYS 104
82 #define SUBCAT_AUDIO_GENERAL 201
83 #define SUBCAT_AUDIO_AOUT 202
84 #define SUBCAT_AUDIO_AFILTER 203
85 #define SUBCAT_AUDIO_VISUAL 204
86 #define SUBCAT_AUDIO_MISC 205
89 #define SUBCAT_VIDEO_GENERAL 301
90 #define SUBCAT_VIDEO_VOUT 302
91 #define SUBCAT_VIDEO_VFILTER 303
92 #define SUBCAT_VIDEO_TEXT 304
93 #define SUBCAT_VIDEO_SUBPIC 305
94 #define SUBCAT_VIDEO_VFILTER2 306
97 #define SUBCAT_INPUT_GENERAL 401
98 #define SUBCAT_INPUT_ACCESS 402
99 #define SUBCAT_INPUT_ACCESS_FILTER 403
100 #define SUBCAT_INPUT_DEMUX 404
101 #define SUBCAT_INPUT_VCODEC 405
102 #define SUBCAT_INPUT_ACODEC 406
103 #define SUBCAT_INPUT_SCODEC 407
106 #define SUBCAT_SOUT_GENERAL 501
107 #define SUBCAT_SOUT_STREAM 502
108 #define SUBCAT_SOUT_MUX 503
109 #define SUBCAT_SOUT_ACO 504
110 #define SUBCAT_SOUT_PACKETIZER 505
111 #define SUBCAT_SOUT_SAP 506
112 #define SUBCAT_SOUT_VOD 507
114 #define CAT_ADVANCED 6
115 #define SUBCAT_ADVANCED_CPU 601
116 #define SUBCAT_ADVANCED_MISC 602
117 #define SUBCAT_ADVANCED_NETWORK 603
118 #define SUBCAT_ADVANCED_XML 604
120 #define CAT_PLAYLIST 7
121 #define SUBCAT_PLAYLIST_GENERAL 701
122 #define SUBCAT_PLAYLIST_SD 702
123 #define SUBCAT_PLAYLIST_EXPORT 703
125 struct config_category_t
128 const char *psz_name;
129 const char *psz_help;
145 struct module_config_t
147 int i_type; /* Configuration type */
148 const char *psz_type; /* Configuration subtype */
149 const char *psz_name; /* Option name */
150 char i_short; /* Optional short option name */
151 const char *psz_text; /* Short comment on the configuration option */
152 const char *psz_longtext; /* Long comment on the configuration option */
153 module_value_t value; /* Option value */
155 module_value_t saved;
159 /* Function to call when commiting a change */
160 vlc_callback_t pf_callback;
161 void *p_callback_data;
164 const char **ppsz_list; /* List of possible values for the option */
165 int *pi_list; /* Idem for integers */
166 const char **ppsz_list_text; /* Friendly names for list values */
167 int i_list; /* Options list size */
170 vlc_callback_t *ppf_action; /* List of possible actions for a config */
171 const char **ppsz_action_text; /* Friendly names for actions */
172 int i_action; /* actions list size */
175 vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
176 vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
177 vlc_bool_t b_advanced; /* Flag to indicate an advanced option */
178 vlc_bool_t b_internal; /* Flag to indicate option is not to be shown */
179 vlc_bool_t b_restart; /* Flag to indicate the option needs a restart */
183 const char *psz_current; /* Good option name */
184 vlc_bool_t b_strict; /* Transitionnal or strict */
186 /* Option values loaded from config file */
187 vlc_bool_t b_autosave; /* Config will be auto-saved at exit time */
188 vlc_bool_t b_unsaveable; /* Config should be saved */
191 /*****************************************************************************
192 * Prototypes - these methods are used to get, set or manipulate configuration
194 *****************************************************************************/
195 VLC_EXPORT( int, __config_GetType, (vlc_object_t *, const char *) );
196 VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
197 VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
198 VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
199 VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
200 VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
201 VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, const char *) );
203 #define config_SaveConfigFile(a,b) __config_SaveConfigFile(VLC_OBJECT(a),b)
204 VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
205 #define config_ResetAll(a) __config_ResetAll(VLC_OBJECT(a))
206 VLC_EXPORT( void, __config_ResetAll, ( vlc_object_t * ) );
208 VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char * ) );
209 VLC_EXPORT( module_t *, config_FindModule,( vlc_object_t *, const char * ) );
211 VLC_EXPORT( int, config_Duplicate,( module_t *, const module_config_t *, size_t ));
213 VLC_EXPORT(const char *, config_GetDataDir, ( const vlc_object_t * ));
215 #define config_GetType(a,b) __config_GetType(VLC_OBJECT(a),b)
216 #define config_GetInt(a,b) __config_GetInt(VLC_OBJECT(a),b)
217 #define config_PutInt(a,b,c) __config_PutInt(VLC_OBJECT(a),b,c)
218 #define config_GetFloat(a,b) __config_GetFloat(VLC_OBJECT(a),b)
219 #define config_PutFloat(a,b,c) __config_PutFloat(VLC_OBJECT(a),b,c)
220 #define config_GetPsz(a,b) __config_GetPsz(VLC_OBJECT(a),b)
221 #define config_PutPsz(a,b,c) __config_PutPsz(VLC_OBJECT(a),b,c)
224 /*****************************************************************************
225 * Macros used to build the configuration structure.
227 * Note that internally we support only 3 types of config data: int, float
229 * The other types declared here just map to one of these 3 basic types but
230 * have the advantage of also providing very good hints to a configuration
231 * interface so as to make it more user friendly.
232 * The configuration structure also includes category hints. These hints can
233 * provide a configuration interface with some very useful data and again
234 * allow for a more user friendly interface.
235 *****************************************************************************/
237 #define add_config_inner( ) \
239 if( (i_config % 10) == 0 ) \
240 p_config = (module_config_t *) \
241 realloc(p_config, (i_config+11) * sizeof(module_config_t)); \
242 memset( p_config + i_config, 0, sizeof( *p_config ) )
244 #define add_type_inner( type ) \
245 add_config_inner( ); \
246 p_config[i_config].i_type = type
248 #define add_typedesc_inner( type, text, longtext ) \
249 add_type_inner( type ); \
250 p_config[i_config].psz_text = text; \
251 p_config[i_config].psz_longtext = longtext
253 #define add_typeadv_inner( type, text, longtext, advc ) \
254 add_typedesc_inner( type, text, longtext ); \
255 p_config[i_config].b_advanced = advc
257 #define add_typename_inner( type, name, text, longtext, advc, cb ) \
258 add_typeadv_inner( type, text, longtext, advc ); \
259 p_config[i_config].psz_name = name; \
260 p_config[i_config].pf_callback = cb
262 #define add_string_inner( type, name, text, longtext, advc, cb, v ) \
263 add_typename_inner( type, name, text, longtext, advc, cb ); \
264 p_config[i_config].value.psz = v
266 #define add_int_inner( type, name, text, longtext, advc, cb, v ) \
267 add_typename_inner( type, name, text, longtext, advc, cb ); \
268 p_config[i_config].value.i = v
271 #define set_category( i_id ) \
272 add_type_inner( CONFIG_CATEGORY ); \
273 p_config[i_config].value.i = i_id
275 #define set_subcategory( i_id ) \
276 add_type_inner( CONFIG_SUBCATEGORY ); \
277 p_config[i_config].value.i = i_id
279 #define set_section( text, longtext ) \
280 add_typedesc_inner( CONFIG_SECTION, text, longtext )
282 #define add_category_hint( text, longtext, advc ) \
283 add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
285 #define add_subcategory_hint( text, longtext ) \
286 add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
288 #define end_subcategory_hint \
289 add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
291 #define add_usage_hint( text ) \
292 add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
294 #define add_string( name, value, p_callback, text, longtext, advc ) \
295 add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
297 #define add_file( name, value, p_callback, text, longtext, advc ) \
298 add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
300 #define add_directory( name, value, p_callback, text, longtext, advc ) \
301 add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
303 #define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
304 add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
305 p_config[i_config].psz_type = psz_caps
307 #define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
308 add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
309 p_config[i_config].min.i = i_subcategory /* gruik */
311 #define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
312 add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
313 p_config[i_config].psz_type = psz_caps
315 #define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
316 add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
317 p_config[i_config].min.i = i_subcategory /* gruik */
319 #define add_integer( name, value, p_callback, text, longtext, advc ) \
320 add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
322 #define add_key( name, value, p_callback, text, longtext, advc ) \
323 add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
325 #define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
326 add_integer( name, value, p_callback, text, longtext, advc ); \
327 change_integer_range( i_min, i_max )
329 #define add_float( name, v, p_callback, text, longtext, advc ) \
330 add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
331 p_config[i_config].value.f = v
333 #define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
334 add_float( name, value, p_callback, text, longtext, advc ); \
335 change_float_range( f_min, f_max )
337 #define add_bool( name, v, p_callback, text, longtext, advc ) \
338 add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
339 p_config[i_config].value.i = v
341 /* For renamed option */
342 #define add_deprecated( name, strict ) \
343 add_config_inner( ); \
344 p_config[ i_config ].i_type = p_config[ i_config -1 ].i_type; \
345 p_config[ i_config ].psz_name = name; \
346 p_config[i_config].b_strict = strict; \
347 p_config[ i_config ].psz_current = p_config[ i_config-1].psz_current \
348 ? p_config[ i_config-1 ].psz_current \
349 : p_config[ i_config-1 ].psz_name;
351 /* For removed option */
352 #define add_suppressed_inner( name, type ) \
353 add_type_inner( type ); \
354 p_config[ i_config ].psz_name = name; \
355 p_config[ i_config ].psz_current = "SUPPRESSED";
357 #define add_suppressed_bool( name ) \
358 add_suppressed_inner( name, CONFIG_ITEM_BOOL )
360 #define add_suppressed_integer( name ) \
361 add_suppressed_inner( name, CONFIG_ITEM_INTEGER )
363 #define add_suppressed_float( name ) \
364 add_suppressed_inner( name, CONFIG_ITEM_FLOAT )
366 #define add_suppressed_string( name ) \
367 add_suppressed_inner( name, CONFIG_ITEM_STRING )
369 /* Modifier macros for the config options (used for fine tuning) */
370 #define change_short( ch ) \
371 p_config[i_config].i_short = ch;
373 #define change_string_list( list, list_text, list_update_func ) \
374 p_config[i_config].i_list = sizeof(list)/sizeof(char *); \
375 p_config[i_config].ppsz_list = list; \
376 p_config[i_config].ppsz_list_text = list_text;
378 #define change_integer_list( list, list_text, list_update_func ) \
379 p_config[i_config].i_list = sizeof(list)/sizeof(int); \
380 p_config[i_config].pi_list = (int *)list; \
381 p_config[i_config].ppsz_list_text = list_text;
383 #define change_integer_range( minv, maxv ) \
384 p_config[i_config].min.i = minv; \
385 p_config[i_config].max.i = maxv;
387 #define change_float_range( minv, maxv ) \
388 p_config[i_config].min.f = minv; \
389 p_config[i_config].max.f = maxv;
391 #define change_action_add( pf_action, action_text ) \
392 if( !p_config[i_config].i_action ) \
393 { p_config[i_config].ppsz_action_text = 0; \
394 p_config[i_config].ppf_action = 0; } \
395 p_config[i_config].ppf_action = (vlc_callback_t *) \
396 realloc( p_config[i_config].ppf_action, \
397 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
398 p_config[i_config].ppsz_action_text = (const char **)\
399 realloc( p_config[i_config].ppsz_action_text, \
400 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
401 p_config[i_config].ppf_action[p_config[i_config].i_action] = pf_action; \
402 p_config[i_config].ppsz_action_text[p_config[i_config].i_action] = \
404 p_config[i_config].i_action++;
406 #define change_internal() \
407 p_config[i_config].b_internal = VLC_TRUE;
409 #define change_need_restart() \
410 p_config[i_config].b_restart = VLC_TRUE;
412 #define change_autosave() \
413 p_config[i_config].b_autosave = VLC_TRUE;
415 #define change_unsaveable() \
416 p_config[i_config].b_unsaveable = VLC_TRUE;
418 /****************************************************************************
420 ****************************************************************************/
421 struct config_chain_t
423 config_chain_t *p_next;
429 #define config_ChainParse( a, b, c, d ) __config_ChainParse( VLC_OBJECT(a), b, c, d )
430 VLC_EXPORT( void, __config_ChainParse, ( vlc_object_t *, const char *psz_prefix, const char **ppsz_options, config_chain_t * ) );
431 VLC_EXPORT( char *, config_ChainCreate, ( char **, config_chain_t **, const char * ) );
432 VLC_EXPORT( void, config_ChainDestroy, ( config_chain_t * ) );
434 static inline config_chain_t *config_chain_find( config_chain_t *p_cfg, const char *psz_name )
436 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
438 p_cfg = p_cfg->p_next;
444 static inline char *config_chain_find_value( config_chain_t *p_cfg, const char *psz_name )
446 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
448 p_cfg = p_cfg->p_next;
451 if( p_cfg && p_cfg->psz_value )
453 return( p_cfg->psz_value );
463 #endif /* _VLC_CONFIGURATION_H */