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 */
64 #define CONFIG_ITEM_FONT 0x00C0 /* Font option */
66 #define CONFIG_ITEM 0x00F0
68 /* Item types that use a string value (i.e. serialized in the module cache) */
69 #define CONFIG_STRING_TYPES \
71 CONFIG_ITEM_STRING, CONFIG_ITEM_FILE, CONFIG_ITEM_MODULE, \
72 CONFIG_ITEM_DIRECTORY, CONFIG_ITEM_MODULE_CAT, \
73 CONFIG_ITEM_MODULE_LIST, CONFIG_ITEM_MODULE_LIST_CAT \
76 static inline int IsConfigStringType (int type)
78 const unsigned char config_string_types[] = CONFIG_STRING_TYPES;
80 /* NOTE: this needs to be changed if we ever get more than 255 types */
81 return memchr (config_string_types, type, sizeof (config_string_types))
85 static inline int IsConfigIntegerType (int type)
87 return (type == CONFIG_ITEM_INTEGER) || (type == CONFIG_ITEM_KEY)
88 || (type == CONFIG_ITEM_BOOL);
91 static inline int IsConfigFloatType (int type)
93 return type == CONFIG_ITEM_FLOAT;
96 /*******************************************************************
97 * All predefined categories and subcategories
98 *******************************************************************/
99 #define CAT_INTERFACE 1
100 #define SUBCAT_INTERFACE_GENERAL 101
101 #define SUBCAT_INTERFACE_MAIN 102
102 #define SUBCAT_INTERFACE_CONTROL 103
103 #define SUBCAT_INTERFACE_HOTKEYS 104
106 #define SUBCAT_AUDIO_GENERAL 201
107 #define SUBCAT_AUDIO_AOUT 202
108 #define SUBCAT_AUDIO_AFILTER 203
109 #define SUBCAT_AUDIO_VISUAL 204
110 #define SUBCAT_AUDIO_MISC 205
113 #define SUBCAT_VIDEO_GENERAL 301
114 #define SUBCAT_VIDEO_VOUT 302
115 #define SUBCAT_VIDEO_VFILTER 303
116 #define SUBCAT_VIDEO_TEXT 304
117 #define SUBCAT_VIDEO_SUBPIC 305
118 #define SUBCAT_VIDEO_VFILTER2 306
121 #define SUBCAT_INPUT_GENERAL 401
122 #define SUBCAT_INPUT_ACCESS 402
123 #define SUBCAT_INPUT_ACCESS_FILTER 403
124 #define SUBCAT_INPUT_DEMUX 404
125 #define SUBCAT_INPUT_VCODEC 405
126 #define SUBCAT_INPUT_ACODEC 406
127 #define SUBCAT_INPUT_SCODEC 407
130 #define SUBCAT_SOUT_GENERAL 501
131 #define SUBCAT_SOUT_STREAM 502
132 #define SUBCAT_SOUT_MUX 503
133 #define SUBCAT_SOUT_ACO 504
134 #define SUBCAT_SOUT_PACKETIZER 505
135 #define SUBCAT_SOUT_SAP 506
136 #define SUBCAT_SOUT_VOD 507
138 #define CAT_ADVANCED 6
139 #define SUBCAT_ADVANCED_CPU 601
140 #define SUBCAT_ADVANCED_MISC 602
141 #define SUBCAT_ADVANCED_NETWORK 603
142 #define SUBCAT_ADVANCED_XML 604
144 #define CAT_PLAYLIST 7
145 #define SUBCAT_PLAYLIST_GENERAL 701
146 #define SUBCAT_PLAYLIST_SD 702
147 #define SUBCAT_PLAYLIST_EXPORT 703
149 struct config_category_t
152 const char *psz_name;
153 const char *psz_help;
169 struct module_config_t
171 int i_type; /* Configuration type */
172 const char *psz_type; /* Configuration subtype */
173 const char *psz_name; /* Option name */
174 char i_short; /* Optional short option name */
175 const char *psz_text; /* Short comment on the configuration option */
176 const char *psz_longtext; /* Long comment on the configuration option */
177 module_value_t value; /* Option value */
179 module_value_t saved;
183 /* Function to call when commiting a change */
184 vlc_callback_t pf_callback;
185 void *p_callback_data;
188 const char **ppsz_list; /* List of possible values for the option */
189 int *pi_list; /* Idem for integers */
190 const char **ppsz_list_text; /* Friendly names for list values */
191 int i_list; /* Options list size */
194 vlc_callback_t *ppf_action; /* List of possible actions for a config */
195 const char **ppsz_action_text; /* Friendly names for actions */
196 int i_action; /* actions list size */
199 vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
200 vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
201 vlc_bool_t b_advanced; /* Flag to indicate an advanced option */
202 vlc_bool_t b_internal; /* Flag to indicate option is not to be shown */
203 vlc_bool_t b_restart; /* Flag to indicate the option need a restart */
207 const char *psz_current; /* Good option name */
208 vlc_bool_t b_strict; /* Transitionnal or strict */
210 /* Option values loaded from config file */
211 vlc_bool_t b_autosave; /* Config will be auto-saved at exit time */
212 vlc_bool_t b_unsaveable; /* confg should be saved*/
215 /*****************************************************************************
216 * Prototypes - these methods are used to get, set or manipulate configuration
218 *****************************************************************************/
219 VLC_EXPORT( int, __config_GetType, (vlc_object_t *, const char *) );
220 VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
221 VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
222 VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
223 VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
224 VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
225 VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, const char *) );
227 #define config_SaveConfigFile(a,b) __config_SaveConfigFile(VLC_OBJECT(a),b)
228 VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
229 #define config_ResetAll(a) __config_ResetAll(VLC_OBJECT(a))
230 VLC_EXPORT( void, __config_ResetAll, ( vlc_object_t * ) );
232 VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char * ) );
233 VLC_EXPORT( module_t *, config_FindModule,( vlc_object_t *, const char * ) );
235 VLC_EXPORT( int, config_Duplicate,( module_t *, const module_config_t *, size_t ));
237 VLC_EXPORT(const char *, config_GetDataDir, ( const vlc_object_t * ));
239 #define config_GetType(a,b) __config_GetType(VLC_OBJECT(a),b)
240 #define config_GetInt(a,b) __config_GetInt(VLC_OBJECT(a),b)
241 #define config_PutInt(a,b,c) __config_PutInt(VLC_OBJECT(a),b,c)
242 #define config_GetFloat(a,b) __config_GetFloat(VLC_OBJECT(a),b)
243 #define config_PutFloat(a,b,c) __config_PutFloat(VLC_OBJECT(a),b,c)
244 #define config_GetPsz(a,b) __config_GetPsz(VLC_OBJECT(a),b)
245 #define config_PutPsz(a,b,c) __config_PutPsz(VLC_OBJECT(a),b,c)
248 /*****************************************************************************
249 * Macros used to build the configuration structure.
251 * Note that internally we support only 3 types of config data: int, float
253 * The other types declared here just map to one of these 3 basic types but
254 * have the advantage of also providing very good hints to a configuration
255 * interface so as to make it more user friendly.
256 * The configuration structure also includes category hints. These hints can
257 * provide a configuration interface with some very useful data and again
258 * allow for a more user friendly interface.
259 *****************************************************************************/
261 #define add_config_inner( ) \
263 if( (i_config % 10) == 0 ) \
264 p_config = (module_config_t *) \
265 realloc(p_config, (i_config+11) * sizeof(module_config_t)); \
266 memset( p_config + i_config, 0, sizeof( *p_config ) )
268 #define add_type_inner( type ) \
269 add_config_inner( ); \
270 p_config[i_config].i_type = type
272 #define add_typedesc_inner( type, text, longtext ) \
273 add_type_inner( type ); \
274 p_config[i_config].psz_text = text; \
275 p_config[i_config].psz_longtext = longtext
277 #define add_typeadv_inner( type, text, longtext, advc ) \
278 add_typedesc_inner( type, text, longtext ); \
279 p_config[i_config].b_advanced = advc
281 #define add_typename_inner( type, name, text, longtext, advc, cb ) \
282 add_typeadv_inner( type, text, longtext, advc ); \
283 p_config[i_config].psz_name = name; \
284 p_config[i_config].pf_callback = cb
286 #define add_string_inner( type, name, text, longtext, advc, cb, v ) \
287 add_typename_inner( type, name, text, longtext, advc, cb ); \
288 p_config[i_config].value.psz = v
290 #define add_int_inner( type, name, text, longtext, advc, cb, v ) \
291 add_typename_inner( type, name, text, longtext, advc, cb ); \
292 p_config[i_config].value.i = v
295 #define set_category( i_id ) \
296 add_type_inner( CONFIG_CATEGORY ); \
297 p_config[i_config].value.i = i_id
299 #define set_subcategory( i_id ) \
300 add_type_inner( CONFIG_SUBCATEGORY ); \
301 p_config[i_config].value.i = i_id
303 #define set_section( text, longtext ) \
304 add_typedesc_inner( CONFIG_SECTION, text, longtext )
306 #define add_category_hint( text, longtext, advc ) \
307 add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
309 #define add_subcategory_hint( text, longtext ) \
310 add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
312 #define end_subcategory_hint \
313 add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
315 #define add_usage_hint( text ) \
316 add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
318 #define add_string( name, value, p_callback, text, longtext, advc ) \
319 add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
321 #define add_file( name, value, p_callback, text, longtext, advc ) \
322 add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
324 #define add_directory( name, value, p_callback, text, longtext, advc ) \
325 add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
327 #define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
328 add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
329 p_config[i_config].psz_type = psz_caps
331 #define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
332 add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
333 p_config[i_config].min.i = i_subcategory /* gruik */
335 #define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
336 add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
337 p_config[i_config].psz_type = psz_caps
339 #define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
340 add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
341 p_config[i_config].min.i = i_subcategory /* gruik */
343 #define add_integer( name, value, p_callback, text, longtext, advc ) \
344 add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
346 #define add_key( name, value, p_callback, text, longtext, advc ) \
347 add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
349 #define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
350 add_integer( name, value, p_callback, text, longtext, advc ); \
351 change_integer_range( i_min, i_max )
353 #define add_float( name, v, p_callback, text, longtext, advc ) \
354 add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
355 p_config[i_config].value.f = v
357 #define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
358 add_float( name, value, p_callback, text, longtext, advc ); \
359 change_float_range( f_min, f_max )
361 #define add_bool( name, v, p_callback, text, longtext, advc ) \
362 add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
363 p_config[i_config].value.i = v
365 /* For renamed option */
366 #define add_deprecated( name, strict ) \
367 add_config_inner( ); \
368 p_config[ i_config ].i_type = p_config[ i_config -1 ].i_type; \
369 p_config[ i_config ].psz_name = name; \
370 p_config[i_config].b_strict = strict; \
371 p_config[ i_config ].psz_current = p_config[ i_config-1].psz_current \
372 ? p_config[ i_config-1 ].psz_current \
373 : p_config[ i_config-1 ].psz_name;
375 /* For removed option */
376 #define add_suppressed_inner( name, type ) \
377 add_type_inner( type ); \
378 p_config[ i_config ].psz_name = name; \
379 p_config[ i_config ].psz_current = "SUPPRESSED";
381 #define add_suppressed_bool( name ) \
382 add_suppressed_inner( name, CONFIG_ITEM_BOOL )
384 #define add_suppressed_integer( name ) \
385 add_suppressed_inner( name, CONFIG_ITEM_INTEGER )
387 #define add_suppressed_float( name ) \
388 add_suppressed_inner( name, CONFIG_ITEM_FLOAT )
390 #define add_suppressed_string( name ) \
391 add_suppressed_inner( name, CONFIG_ITEM_STRING )
393 /* Modifier macros for the config options (used for fine tuning) */
394 #define change_short( ch ) \
395 p_config[i_config].i_short = ch;
397 #define change_string_list( list, list_text, list_update_func ) \
398 p_config[i_config].i_list = sizeof(list)/sizeof(char *); \
399 p_config[i_config].ppsz_list = list; \
400 p_config[i_config].ppsz_list_text = list_text;
402 #define change_integer_list( list, list_text, list_update_func ) \
403 p_config[i_config].i_list = sizeof(list)/sizeof(int); \
404 p_config[i_config].pi_list = (int *)list; \
405 p_config[i_config].ppsz_list_text = list_text;
407 #define change_integer_range( minv, maxv ) \
408 p_config[i_config].min.i = minv; \
409 p_config[i_config].max.i = maxv;
411 #define change_float_range( minv, maxv ) \
412 p_config[i_config].min.f = minv; \
413 p_config[i_config].max.f = maxv;
415 #define change_action_add( pf_action, action_text ) \
416 if( !p_config[i_config].i_action ) \
417 { p_config[i_config].ppsz_action_text = 0; \
418 p_config[i_config].ppf_action = 0; } \
419 p_config[i_config].ppf_action = (vlc_callback_t *) \
420 realloc( p_config[i_config].ppf_action, \
421 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
422 p_config[i_config].ppsz_action_text = (const char **)\
423 realloc( p_config[i_config].ppsz_action_text, \
424 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
425 p_config[i_config].ppf_action[p_config[i_config].i_action] = pf_action; \
426 p_config[i_config].ppsz_action_text[p_config[i_config].i_action] = \
428 p_config[i_config].i_action++;
430 #define change_internal() \
431 p_config[i_config].b_internal = VLC_TRUE;
433 #define change_need_restart() \
434 p_config[i_config].b_restart = VLC_TRUE;
436 #define change_autosave() \
437 p_config[i_config].b_autosave = VLC_TRUE;
439 #define change_unsaveable() \
440 p_config[i_config].b_unsaveable = VLC_TRUE;
442 /****************************************************************************
444 ****************************************************************************/
445 struct config_chain_t
447 config_chain_t *p_next;
453 #define config_ChainParse( a, b, c, d ) __config_ChainParse( VLC_OBJECT(a), b, c, d )
454 VLC_EXPORT( void, __config_ChainParse, ( vlc_object_t *, const char *psz_prefix, const char **ppsz_options, config_chain_t * ) );
455 VLC_EXPORT( char *, config_ChainCreate, ( char **, config_chain_t **, const char * ) );
456 VLC_EXPORT( void, config_ChainDestroy, ( config_chain_t * ) );
458 static inline config_chain_t *config_chain_find( config_chain_t *p_cfg, const char *psz_name )
460 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
462 p_cfg = p_cfg->p_next;
468 static inline char *config_chain_find_value( config_chain_t *p_cfg, const char *psz_name )
470 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
472 p_cfg = p_cfg->p_next;
475 if( p_cfg && p_cfg->psz_value )
477 return( p_cfg->psz_value );