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
34 /*****************************************************************************
35 * Macros used to build the configuration structure.
36 *****************************************************************************/
38 /* Configuration hint types */
41 #define CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
42 #define CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
43 #define CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
44 #define CONFIG_HINT_USAGE 0x0005 /* Usage information */
46 #define CONFIG_CATEGORY 0x0006 /* Set category */
47 #define CONFIG_SUBCATEGORY 0x0007 /* Set subcategory */
48 #define CONFIG_SECTION 0x0008 /* Start of new section */
50 #define CONFIG_HINT 0x000F
52 /* Configuration item types */
53 #define CONFIG_ITEM_STRING 0x0010 /* String option */
54 #define CONFIG_ITEM_FILE 0x0020 /* File option */
55 #define CONFIG_ITEM_MODULE 0x0030 /* Module option */
56 #define CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
57 #define CONFIG_ITEM_BOOL 0x0050 /* Bool option */
58 #define CONFIG_ITEM_FLOAT 0x0060 /* Float option */
59 #define CONFIG_ITEM_DIRECTORY 0x0070 /* Directory option */
60 #define CONFIG_ITEM_KEY 0x0080 /* Hot key option */
61 #define CONFIG_ITEM_MODULE_CAT 0x0090 /* Module option */
62 #define CONFIG_ITEM_MODULE_LIST 0x00A0 /* Module option */
63 #define CONFIG_ITEM_MODULE_LIST_CAT 0x00B0 /* Module option */
65 #define CONFIG_ITEM 0x00F0
67 /* Item types that use a string value (i.e. serialized in the module cache) */
68 #define CONFIG_STRING_TYPES \
70 CONFIG_ITEM_STRING, CONFIG_ITEM_FILE, CONFIG_ITEM_MODULE, \
71 CONFIG_ITEM_DIRECTORY, CONFIG_ITEM_MODULE_CAT, \
72 CONFIG_ITEM_MODULE_LIST, CONFIG_ITEM_MODULE_LIST_CAT \
75 static inline int IsConfigStringType (int type)
77 const unsigned char config_string_types[] = CONFIG_STRING_TYPES;
79 /* NOTE: this needs to be changed if we ever get more than 255 types */
80 return memchr (config_string_types, type, sizeof (config_string_types))
84 static inline int IsConfigIntegerType (int type)
86 return (type == CONFIG_ITEM_INTEGER) || (type == CONFIG_ITEM_KEY)
87 || (type == CONFIG_ITEM_BOOL);
90 static inline int IsConfigFloatType (int type)
92 return type == CONFIG_ITEM_FLOAT;
95 /*******************************************************************
96 * All predefined categories and subcategories
97 *******************************************************************/
98 #define CAT_INTERFACE 1
99 #define SUBCAT_INTERFACE_GENERAL 101
100 #define SUBCAT_INTERFACE_MAIN 102
101 #define SUBCAT_INTERFACE_CONTROL 103
102 #define SUBCAT_INTERFACE_HOTKEYS 104
105 #define SUBCAT_AUDIO_GENERAL 201
106 #define SUBCAT_AUDIO_AOUT 202
107 #define SUBCAT_AUDIO_AFILTER 203
108 #define SUBCAT_AUDIO_VISUAL 204
109 #define SUBCAT_AUDIO_MISC 205
112 #define SUBCAT_VIDEO_GENERAL 301
113 #define SUBCAT_VIDEO_VOUT 302
114 #define SUBCAT_VIDEO_VFILTER 303
115 #define SUBCAT_VIDEO_TEXT 304
116 #define SUBCAT_VIDEO_SUBPIC 305
117 #define SUBCAT_VIDEO_VFILTER2 306
120 #define SUBCAT_INPUT_GENERAL 401
121 #define SUBCAT_INPUT_ACCESS 402
122 #define SUBCAT_INPUT_ACCESS_FILTER 403
123 #define SUBCAT_INPUT_DEMUX 404
124 #define SUBCAT_INPUT_VCODEC 405
125 #define SUBCAT_INPUT_ACODEC 406
126 #define SUBCAT_INPUT_SCODEC 407
129 #define SUBCAT_SOUT_GENERAL 501
130 #define SUBCAT_SOUT_STREAM 502
131 #define SUBCAT_SOUT_MUX 503
132 #define SUBCAT_SOUT_ACO 504
133 #define SUBCAT_SOUT_PACKETIZER 505
134 #define SUBCAT_SOUT_SAP 506
135 #define SUBCAT_SOUT_VOD 507
137 #define CAT_ADVANCED 6
138 #define SUBCAT_ADVANCED_CPU 601
139 #define SUBCAT_ADVANCED_MISC 602
140 #define SUBCAT_ADVANCED_NETWORK 603
141 #define SUBCAT_ADVANCED_XML 604
143 #define CAT_PLAYLIST 7
144 #define SUBCAT_PLAYLIST_GENERAL 701
145 #define SUBCAT_PLAYLIST_SD 702
146 #define SUBCAT_PLAYLIST_EXPORT 703
148 struct config_category_t
151 const char *psz_name;
152 const char *psz_help;
168 struct module_config_t
170 int i_type; /* Configuration type */
171 const char *psz_type; /* Configuration subtype */
172 const char *psz_name; /* Option name */
173 char i_short; /* Optional short option name */
174 const char *psz_text; /* Short comment on the configuration option */
175 const char *psz_longtext; /* Long comment on the configuration option */
176 module_value_t value; /* Option value */
178 module_value_t saved;
182 /* Function to call when commiting a change */
183 vlc_callback_t pf_callback;
184 void *p_callback_data;
187 const char **ppsz_list; /* List of possible values for the option */
188 int *pi_list; /* Idem for integers */
189 const char **ppsz_list_text; /* Friendly names for list values */
190 int i_list; /* Options list size */
193 vlc_callback_t *ppf_action; /* List of possible actions for a config */
194 const char **ppsz_action_text; /* Friendly names for actions */
195 int i_action; /* actions list size */
198 vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
199 vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
200 vlc_bool_t b_advanced; /* Flag to indicate an advanced option */
201 vlc_bool_t b_internal; /* Flag to indicate option is not to be shown */
202 vlc_bool_t b_restart; /* Flag to indicate the option need a restart */
206 const char *psz_current; /* Good option name */
207 vlc_bool_t b_strict; /* Transitionnal or strict */
209 /* Option values loaded from config file */
210 vlc_bool_t b_autosave; /* Config will be auto-saved at exit time */
211 vlc_bool_t b_unsaveable; /* confg should be saved*/
214 /*****************************************************************************
215 * Prototypes - these methods are used to get, set or manipulate configuration
217 *****************************************************************************/
218 VLC_EXPORT( int, __config_GetType, (vlc_object_t *, const char *) );
219 VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
220 VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
221 VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
222 VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
223 VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
224 VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, const char *) );
226 #define config_SaveConfigFile(a,b) __config_SaveConfigFile(VLC_OBJECT(a),b)
227 VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
228 #define config_ResetAll(a) __config_ResetAll(VLC_OBJECT(a))
229 VLC_EXPORT( void, __config_ResetAll, ( vlc_object_t * ) );
231 VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char * ) );
232 VLC_EXPORT( module_t *, config_FindModule,( vlc_object_t *, const char * ) );
234 VLC_EXPORT( int, config_Duplicate,( module_t *, const module_config_t *, size_t ));
236 VLC_EXPORT(const char *, config_GetDataDir, ( const vlc_object_t * ));
238 #define config_GetType(a,b) __config_GetType(VLC_OBJECT(a),b)
239 #define config_GetInt(a,b) __config_GetInt(VLC_OBJECT(a),b)
240 #define config_PutInt(a,b,c) __config_PutInt(VLC_OBJECT(a),b,c)
241 #define config_GetFloat(a,b) __config_GetFloat(VLC_OBJECT(a),b)
242 #define config_PutFloat(a,b,c) __config_PutFloat(VLC_OBJECT(a),b,c)
243 #define config_GetPsz(a,b) __config_GetPsz(VLC_OBJECT(a),b)
244 #define config_PutPsz(a,b,c) __config_PutPsz(VLC_OBJECT(a),b,c)
247 /*****************************************************************************
248 * Macros used to build the configuration structure.
250 * Note that internally we support only 3 types of config data: int, float
252 * The other types declared here just map to one of these 3 basic types but
253 * have the advantage of also providing very good hints to a configuration
254 * interface so as to make it more user friendly.
255 * The configuration structure also includes category hints. These hints can
256 * provide a configuration interface with some very useful data and again
257 * allow for a more user friendly interface.
258 *****************************************************************************/
260 #define add_config_inner( ) \
262 if( (i_config % 10) == 0 ) \
263 p_config = (module_config_t *) \
264 realloc(p_config, (i_config+11) * sizeof(module_config_t)); \
265 memset( p_config + i_config, 0, sizeof( *p_config ) )
267 #define add_type_inner( type ) \
268 add_config_inner( ); \
269 p_config[i_config].i_type = type
271 #define add_typedesc_inner( type, text, longtext ) \
272 add_type_inner( type ); \
273 p_config[i_config].psz_text = text; \
274 p_config[i_config].psz_longtext = longtext
276 #define add_typeadv_inner( type, text, longtext, advc ) \
277 add_typedesc_inner( type, text, longtext ); \
278 p_config[i_config].b_advanced = advc
280 #define add_typename_inner( type, name, text, longtext, advc, cb ) \
281 add_typeadv_inner( type, text, longtext, advc ); \
282 p_config[i_config].psz_name = name; \
283 p_config[i_config].pf_callback = cb
285 #define add_string_inner( type, name, text, longtext, advc, cb, v ) \
286 add_typename_inner( type, name, text, longtext, advc, cb ); \
287 p_config[i_config].value.psz = v
289 #define add_int_inner( type, name, text, longtext, advc, cb, v ) \
290 add_typename_inner( type, name, text, longtext, advc, cb ); \
291 p_config[i_config].value.i = v
294 #define set_category( i_id ) \
295 add_type_inner( CONFIG_CATEGORY ); \
296 p_config[i_config].value.i = i_id
298 #define set_subcategory( i_id ) \
299 add_type_inner( CONFIG_SUBCATEGORY ); \
300 p_config[i_config].value.i = i_id
302 #define set_section( text, longtext ) \
303 add_typedesc_inner( CONFIG_SECTION, text, longtext )
305 #define add_category_hint( text, longtext, advc ) \
306 add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
308 #define add_subcategory_hint( text, longtext ) \
309 add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
311 #define end_subcategory_hint \
312 add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
314 #define add_usage_hint( text ) \
315 add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
317 #define add_string( name, value, p_callback, text, longtext, advc ) \
318 add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
320 #define add_file( name, value, p_callback, text, longtext, advc ) \
321 add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
323 #define add_directory( name, value, p_callback, text, longtext, advc ) \
324 add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
326 #define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
327 add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
328 p_config[i_config].psz_type = psz_caps
330 #define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
331 add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
332 p_config[i_config].min.i = i_subcategory /* gruik */
334 #define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
335 add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
336 p_config[i_config].psz_type = psz_caps
338 #define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
339 add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
340 p_config[i_config].min.i = i_subcategory /* gruik */
342 #define add_integer( name, value, p_callback, text, longtext, advc ) \
343 add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
345 #define add_key( name, value, p_callback, text, longtext, advc ) \
346 add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
348 #define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
349 add_integer( name, value, p_callback, text, longtext, advc ); \
350 change_integer_range( i_min, i_max )
352 #define add_float( name, v, p_callback, text, longtext, advc ) \
353 add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
354 p_config[i_config].value.f = v
356 #define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
357 add_float( name, value, p_callback, text, longtext, advc ); \
358 change_float_range( f_min, f_max )
360 #define add_bool( name, v, p_callback, text, longtext, advc ) \
361 add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
362 p_config[i_config].value.i = v
364 /* For renamed option */
365 #define add_deprecated( name, strict ) \
366 add_config_inner( ); \
367 p_config[ i_config ].i_type = p_config[ i_config -1 ].i_type; \
368 p_config[ i_config ].psz_name = name; \
369 p_config[i_config].b_strict = strict; \
370 p_config[ i_config ].psz_current = p_config[ i_config-1].psz_current \
371 ? p_config[ i_config-1 ].psz_current \
372 : p_config[ i_config-1 ].psz_name;
374 /* For removed option */
375 #define add_suppressed_inner( name, type ) \
376 add_type_inner( type ); \
377 p_config[ i_config ].psz_name = name; \
378 p_config[ i_config ].psz_current = "SUPPRESSED";
380 #define add_suppressed_bool( name ) \
381 add_suppressed_inner( name, CONFIG_ITEM_BOOL )
383 #define add_suppressed_integer( name ) \
384 add_suppressed_inner( name, CONFIG_ITEM_INTEGER )
386 #define add_suppressed_float( name ) \
387 add_suppressed_inner( name, CONFIG_ITEM_FLOAT )
389 #define add_suppressed_string( name ) \
390 add_suppressed_inner( name, CONFIG_ITEM_STRING )
392 /* Modifier macros for the config options (used for fine tuning) */
393 #define change_short( ch ) \
394 p_config[i_config].i_short = ch;
396 #define change_string_list( list, list_text, list_update_func ) \
397 p_config[i_config].i_list = sizeof(list)/sizeof(char *); \
398 p_config[i_config].ppsz_list = list; \
399 p_config[i_config].ppsz_list_text = list_text;
401 #define change_integer_list( list, list_text, list_update_func ) \
402 p_config[i_config].i_list = sizeof(list)/sizeof(int); \
403 p_config[i_config].pi_list = (int *)list; \
404 p_config[i_config].ppsz_list_text = list_text;
406 #define change_integer_range( minv, maxv ) \
407 p_config[i_config].min.i = minv; \
408 p_config[i_config].max.i = maxv;
410 #define change_float_range( minv, maxv ) \
411 p_config[i_config].min.f = minv; \
412 p_config[i_config].max.f = maxv;
414 #define change_action_add( pf_action, action_text ) \
415 if( !p_config[i_config].i_action ) \
416 { p_config[i_config].ppsz_action_text = 0; \
417 p_config[i_config].ppf_action = 0; } \
418 p_config[i_config].ppf_action = (vlc_callback_t *) \
419 realloc( p_config[i_config].ppf_action, \
420 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
421 p_config[i_config].ppsz_action_text = (const char **)\
422 realloc( p_config[i_config].ppsz_action_text, \
423 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
424 p_config[i_config].ppf_action[p_config[i_config].i_action] = pf_action; \
425 p_config[i_config].ppsz_action_text[p_config[i_config].i_action] = \
427 p_config[i_config].i_action++;
429 #define change_internal() \
430 p_config[i_config].b_internal = VLC_TRUE;
432 #define change_need_restart() \
433 p_config[i_config].b_restart = VLC_TRUE;
435 #define change_autosave() \
436 p_config[i_config].b_autosave = VLC_TRUE;
438 #define change_unsaveable() \
439 p_config[i_config].b_unsaveable = VLC_TRUE;
441 /****************************************************************************
443 ****************************************************************************/
444 struct config_chain_t
446 config_chain_t *p_next;
452 #define config_ChainParse( a, b, c, d ) __config_ChainParse( VLC_OBJECT(a), b, c, d )
453 VLC_EXPORT( void, __config_ChainParse, ( vlc_object_t *, const char *psz_prefix, const char **ppsz_options, config_chain_t * ) );
454 VLC_EXPORT( char *, config_ChainCreate, ( char **, config_chain_t **, const char * ) );
455 VLC_EXPORT( void, config_ChainDestroy, ( config_chain_t * ) );
457 static inline config_chain_t *config_chain_find( config_chain_t *p_cfg, const char *psz_name )
459 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
461 p_cfg = p_cfg->p_next;
467 static inline char *config_chain_find_value( config_chain_t *p_cfg, const char *psz_name )
469 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
471 p_cfg = p_cfg->p_next;
474 if( p_cfg && p_cfg->psz_value )
476 return( p_cfg->psz_value );