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 /*****************************************************************************
27 * Macros used to build the configuration structure.
28 *****************************************************************************/
30 /* Configuration hint types */
33 #define CONFIG_HINT_END 0x0001 /* End of config */
34 #define CONFIG_HINT_CATEGORY 0x0002 /* Start of new category */
35 #define CONFIG_HINT_SUBCATEGORY 0x0003 /* Start of sub-category */
36 #define CONFIG_HINT_SUBCATEGORY_END 0x0004 /* End of sub-category */
37 #define CONFIG_HINT_USAGE 0x0005 /* Usage information */
39 #define CONFIG_CATEGORY 0x0006 /* Set category */
40 #define CONFIG_SUBCATEGORY 0x0007 /* Set subcategory */
41 #define CONFIG_SECTION 0x0008 /* Start of new section */
43 #define CONFIG_HINT 0x000F
45 /* Configuration item types */
46 #define CONFIG_ITEM_STRING 0x0010 /* String option */
47 #define CONFIG_ITEM_FILE 0x0020 /* File option */
48 #define CONFIG_ITEM_MODULE 0x0030 /* Module option */
49 #define CONFIG_ITEM_INTEGER 0x0040 /* Integer option */
50 #define CONFIG_ITEM_BOOL 0x0050 /* Bool option */
51 #define CONFIG_ITEM_FLOAT 0x0060 /* Float option */
52 #define CONFIG_ITEM_DIRECTORY 0x0070 /* Directory option */
53 #define CONFIG_ITEM_KEY 0x0080 /* Hot key option */
54 #define CONFIG_ITEM_MODULE_CAT 0x0090 /* Module option */
55 #define CONFIG_ITEM_MODULE_LIST 0x00A0 /* Module option */
56 #define CONFIG_ITEM_MODULE_LIST_CAT 0x00B0 /* Module option */
58 #define CONFIG_ITEM 0x00F0
60 /*******************************************************************
61 * All predefined categories and subcategories
62 *******************************************************************/
63 #define CAT_INTERFACE 1
64 #define SUBCAT_INTERFACE_GENERAL 101
65 #define SUBCAT_INTERFACE_MAIN 102
66 #define SUBCAT_INTERFACE_CONTROL 103
67 #define SUBCAT_INTERFACE_HOTKEYS 104
70 #define SUBCAT_AUDIO_GENERAL 201
71 #define SUBCAT_AUDIO_AOUT 202
72 #define SUBCAT_AUDIO_AFILTER 203
73 #define SUBCAT_AUDIO_VISUAL 204
74 #define SUBCAT_AUDIO_MISC 205
77 #define SUBCAT_VIDEO_GENERAL 301
78 #define SUBCAT_VIDEO_VOUT 302
79 #define SUBCAT_VIDEO_VFILTER 303
80 #define SUBCAT_VIDEO_TEXT 304
81 #define SUBCAT_VIDEO_SUBPIC 305
82 #define SUBCAT_VIDEO_VFILTER2 306
85 #define SUBCAT_INPUT_GENERAL 401
86 #define SUBCAT_INPUT_ACCESS 402
87 #define SUBCAT_INPUT_ACCESS_FILTER 403
88 #define SUBCAT_INPUT_DEMUX 404
89 #define SUBCAT_INPUT_VCODEC 405
90 #define SUBCAT_INPUT_ACODEC 406
91 #define SUBCAT_INPUT_SCODEC 407
94 #define SUBCAT_SOUT_GENERAL 501
95 #define SUBCAT_SOUT_STREAM 502
96 #define SUBCAT_SOUT_MUX 503
97 #define SUBCAT_SOUT_ACO 504
98 #define SUBCAT_SOUT_PACKETIZER 505
99 #define SUBCAT_SOUT_SAP 506
100 #define SUBCAT_SOUT_VOD 507
102 #define CAT_ADVANCED 6
103 #define SUBCAT_ADVANCED_CPU 601
104 #define SUBCAT_ADVANCED_MISC 602
105 #define SUBCAT_ADVANCED_NETWORK 603
106 #define SUBCAT_ADVANCED_XML 604
108 #define CAT_PLAYLIST 7
109 #define SUBCAT_PLAYLIST_GENERAL 701
110 #define SUBCAT_PLAYLIST_SD 702
111 #define SUBCAT_PLAYLIST_EXPORT 703
113 struct config_category_t
116 const char *psz_name;
117 const char *psz_help;
120 struct module_config_t
122 int i_type; /* Configuration type */
123 const char *psz_type; /* Configuration subtype */
124 const char *psz_name; /* Option name */
125 char i_short; /* Optional short option name */
126 const char *psz_text; /* Short comment on the configuration option */
127 const char *psz_longtext; /* Long comment on the configuration option */
128 const char *psz_value; /* Option value */
129 int i_value; /* Option value */
130 float f_value; /* Option value */
131 int i_min; /* Option minimum value */
132 int i_max; /* Option maximum value */
133 float f_min; /* Option minimum value */
134 float f_max; /* Option maximum value */
136 /* Function to call when commiting a change */
137 vlc_callback_t pf_callback;
138 void *p_callback_data;
141 const char **ppsz_list; /* List of possible values for the option */
142 int *pi_list; /* Idem for integers */
143 const char **ppsz_list_text; /* Friendly names for list values */
144 int i_list; /* Options list size */
147 vlc_callback_t *ppf_action; /* List of possible actions for a config */
148 const char **ppsz_action_text; /* Friendly names for actions */
149 int i_action; /* actions list size */
152 const char *psz_current; /* Good option name */
153 vlc_bool_t b_strict; /* Transitionnal or strict */
155 vlc_mutex_t *p_lock; /* Lock to use when modifying the config */
156 vlc_bool_t b_dirty; /* Dirty flag to indicate a config change */
157 vlc_bool_t b_advanced; /* Flag to indicate an advanced option */
158 vlc_bool_t b_internal; /* Flag to indicate option is not to be shown */
159 vlc_bool_t b_restart; /* Flag to indicate the option need a restart */
162 /* Original option values */
163 const char *psz_value_orig;
167 /* Option values loaded from config file */
168 const char *psz_value_saved;
171 vlc_bool_t b_autosave; /* Config will be auto-saved at exit time */
172 vlc_bool_t b_unsaveable; /* confg should be saved*/
175 /*****************************************************************************
176 * Prototypes - these methods are used to get, set or manipulate configuration
178 *****************************************************************************/
179 VLC_EXPORT( int, __config_GetType, (vlc_object_t *, const char *) );
180 VLC_EXPORT( int, __config_GetInt, (vlc_object_t *, const char *) );
181 VLC_EXPORT( void, __config_PutInt, (vlc_object_t *, const char *, int) );
182 VLC_EXPORT( float, __config_GetFloat, (vlc_object_t *, const char *) );
183 VLC_EXPORT( void, __config_PutFloat, (vlc_object_t *, const char *, float) );
184 VLC_EXPORT( char *, __config_GetPsz, (vlc_object_t *, const char *) );
185 VLC_EXPORT( void, __config_PutPsz, (vlc_object_t *, const char *, const char *) );
187 VLC_EXPORT( int, __config_LoadCmdLine, ( vlc_object_t *, int *, char *[], vlc_bool_t ) );
188 VLC_EXPORT( char *, config_GetHomeDir, ( void ) );
189 VLC_EXPORT( char *, config_GetUserDir, ( void ) );
190 VLC_EXPORT( const char *, config_GetDataDir, ( const vlc_object_t * ) );
191 VLC_EXPORT( int, __config_LoadConfigFile, ( vlc_object_t *, const char * ) );
192 VLC_EXPORT( int, __config_SaveConfigFile, ( vlc_object_t *, const char * ) );
193 VLC_EXPORT( void, __config_ResetAll, ( vlc_object_t * ) );
195 VLC_EXPORT( module_config_t *, config_FindConfig,( vlc_object_t *, const char * ) );
196 VLC_EXPORT( module_t *, config_FindModule,( vlc_object_t *, const char * ) );
198 VLC_EXPORT( void, config_Duplicate, ( module_t *, const module_config_t * ) );
199 void config_Free ( module_t * );
201 VLC_EXPORT( void, config_SetCallbacks, ( module_config_t *, module_config_t * ) );
202 VLC_EXPORT( void, config_UnsetCallbacks, ( module_config_t * ) );
204 #define config_GetType(a,b) __config_GetType(VLC_OBJECT(a),b)
205 #define config_GetInt(a,b) __config_GetInt(VLC_OBJECT(a),b)
206 #define config_PutInt(a,b,c) __config_PutInt(VLC_OBJECT(a),b,c)
207 #define config_GetFloat(a,b) __config_GetFloat(VLC_OBJECT(a),b)
208 #define config_PutFloat(a,b,c) __config_PutFloat(VLC_OBJECT(a),b,c)
209 #define config_GetPsz(a,b) __config_GetPsz(VLC_OBJECT(a),b)
210 #define config_PutPsz(a,b,c) __config_PutPsz(VLC_OBJECT(a),b,c)
212 #define config_LoadCmdLine(a,b,c,d) __config_LoadCmdLine(VLC_OBJECT(a),b,c,d)
213 #define config_LoadConfigFile(a,b) __config_LoadConfigFile(VLC_OBJECT(a),b)
214 #define config_SaveConfigFile(a,b) __config_SaveConfigFile(VLC_OBJECT(a),b)
215 #define config_ResetAll(a) __config_ResetAll(VLC_OBJECT(a))
218 int config_CreateDir( vlc_object_t *, const char * );
219 int config_AutoSaveConfigFile( vlc_object_t * );
221 /*****************************************************************************
222 * Macros used to build the configuration structure.
224 * Note that internally we support only 3 types of config data: int, float
226 * The other types declared here just map to one of these 3 basic types but
227 * have the advantage of also providing very good hints to a configuration
228 * interface so as to make it more user friendly.
229 * The configuration structure also includes category hints. These hints can
230 * provide a configuration interface with some very useful data and again
231 * allow for a more user friendly interface.
232 *****************************************************************************/
234 #define add_config_inner( ) \
236 if( (i_config % 10) == 0 ) \
237 p_config = (module_config_t *) \
238 realloc(p_config, (i_config+11) * sizeof(module_config_t)); \
239 memset( p_config + i_config, 0, sizeof( *p_config ) )
241 #define add_type_inner( type ) \
242 add_config_inner( ); \
243 p_config[i_config].i_type = type
245 #define add_typedesc_inner( type, text, longtext ) \
246 add_type_inner( type ); \
247 p_config[i_config].psz_text = text; \
248 p_config[i_config].psz_longtext = longtext
250 #define add_typeadv_inner( type, text, longtext, advc ) \
251 add_typedesc_inner( type, text, longtext ); \
252 p_config[i_config].b_advanced = advc
254 #define add_typename_inner( type, name, text, longtext, advc, cb ) \
255 add_typeadv_inner( type, text, longtext, advc ); \
256 p_config[i_config].psz_name = name; \
257 p_config[i_config].pf_callback = cb
259 #define add_string_inner( type, name, text, longtext, advc, cb, value ) \
260 add_typename_inner( type, name, text, longtext, advc, cb ); \
261 p_config[i_config].psz_value = value
263 #define add_int_inner( type, name, text, longtext, advc, cb, value ) \
264 add_typename_inner( type, name, text, longtext, advc, cb ); \
265 p_config[i_config].i_value = value
268 #define set_category( i_id ) \
269 add_type_inner( CONFIG_CATEGORY ); \
270 p_config[i_config].i_value = i_id
272 #define set_subcategory( i_id ) \
273 add_type_inner( CONFIG_SUBCATEGORY ); \
274 p_config[i_config].i_value = i_id
276 #define set_section( text, longtext ) \
277 add_typedesc_inner( CONFIG_SECTION, text, longtext )
279 #define add_category_hint( text, longtext, advc ) \
280 add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
282 #define add_subcategory_hint( text, longtext ) \
283 add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
285 #define end_subcategory_hint \
286 add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
288 #define add_usage_hint( text ) \
289 add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
291 #define add_string( name, value, p_callback, text, longtext, advc ) \
292 add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
294 #define add_file( name, value, p_callback, text, longtext, advc ) \
295 add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
297 #define add_directory( name, value, p_callback, text, longtext, advc ) \
298 add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
300 #define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
301 add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
302 p_config[i_config].psz_type = psz_caps
304 #define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
305 add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
306 p_config[i_config].i_min = i_subcategory /* gruik */
308 #define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
309 add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
310 p_config[i_config].psz_type = psz_caps
312 #define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
313 add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
314 p_config[i_config].i_min = i_subcategory /* gruik */
316 #define add_integer( name, value, p_callback, text, longtext, advc ) \
317 add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
319 #define add_key( name, value, p_callback, text, longtext, advc ) \
320 add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
322 #define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
323 add_integer( name, value, p_callback, text, longtext, advc ); \
324 change_integer_range( i_min, i_max )
326 #define add_float( name, value, p_callback, text, longtext, advc ) \
327 add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
328 p_config[i_config].f_value = value
330 #define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
331 add_float( name, value, p_callback, text, longtext, advc ); \
332 change_float_range( f_min, f_max )
334 #define add_bool( name, value, p_callback, text, longtext, advc ) \
335 add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
336 p_config[i_config].i_value = value
338 /* For renamed option */
339 #define add_deprecated( name, strict ) \
340 add_config_inner( ); \
341 p_config[ i_config ].i_type = p_config[ i_config -1 ].i_type; \
342 p_config[ i_config ].psz_name = name; \
343 p_config[i_config].b_strict = strict; \
344 p_config[ i_config ].psz_current = p_config[ i_config-1].psz_current \
345 ? p_config[ i_config-1 ].psz_current \
346 : p_config[ i_config-1 ].psz_name;
348 /* For removed option */
349 #define add_suppressed_inner( name, type ) \
350 add_type_inner( type ); \
351 p_config[ i_config ].psz_name = name; \
352 p_config[ i_config ].psz_current = "SUPPRESSED";
354 #define add_suppressed_bool( name ) \
355 add_suppressed_inner( name, CONFIG_ITEM_BOOL )
357 #define add_suppressed_integer( name ) \
358 add_suppressed_inner( name, CONFIG_ITEM_INTEGER )
360 #define add_suppressed_float( name ) \
361 add_suppressed_inner( name, CONFIG_ITEM_FLOAT )
363 #define add_suppressed_string( name ) \
364 add_suppressed_inner( name, CONFIG_ITEM_STRING )
366 /* Modifier macros for the config options (used for fine tuning) */
367 #define change_short( ch ) \
368 p_config[i_config].i_short = ch;
370 #define change_string_list( list, list_text, list_update_func ) \
371 p_config[i_config].i_list = sizeof(list)/sizeof(char *); \
372 p_config[i_config].ppsz_list = list; \
373 p_config[i_config].ppsz_list_text = list_text;
375 #define change_integer_list( list, list_text, list_update_func ) \
376 p_config[i_config].i_list = sizeof(list)/sizeof(int); \
377 p_config[i_config].pi_list = (int *)list; \
378 p_config[i_config].ppsz_list_text = list_text;
380 #define change_integer_range( min, max ) \
381 p_config[i_config].i_min = min; \
382 p_config[i_config].i_max = max;
384 #define change_float_range( min, max ) \
385 p_config[i_config].f_min = min; \
386 p_config[i_config].f_max = max;
388 #define change_action_add( pf_action, action_text ) \
389 if( !p_config[i_config].i_action ) \
390 { p_config[i_config].ppsz_action_text = 0; \
391 p_config[i_config].ppf_action = 0; } \
392 p_config[i_config].ppf_action = (vlc_callback_t *) \
393 realloc( p_config[i_config].ppf_action, \
394 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
395 p_config[i_config].ppsz_action_text = (const char **)\
396 realloc( p_config[i_config].ppsz_action_text, \
397 (p_config[i_config].i_action + 1) * sizeof(void *) ); \
398 p_config[i_config].ppf_action[p_config[i_config].i_action] = pf_action; \
399 p_config[i_config].ppsz_action_text[p_config[i_config].i_action] = \
401 p_config[i_config].i_action++;
403 #define change_internal() \
404 p_config[i_config].b_internal = VLC_TRUE;
406 #define change_need_restart() \
407 p_config[i_config].b_restart = VLC_TRUE;
409 #define change_autosave() \
410 p_config[i_config].b_autosave = VLC_TRUE;
412 #define change_unsaveable() \
413 p_config[i_config].b_unsaveable = VLC_TRUE;
415 /****************************************************************************
417 ****************************************************************************/
418 struct config_chain_t
420 config_chain_t *p_next;
426 #define config_ChainParse( a, b, c, d ) __config_ChainParse( VLC_OBJECT(a), b, c, d )
427 VLC_EXPORT( void, __config_ChainParse, ( vlc_object_t *, const char *psz_prefix, const char **ppsz_options, config_chain_t * ) );
428 VLC_EXPORT( char *, config_ChainCreate, ( char **, config_chain_t **, const char * ) );
429 VLC_EXPORT( void, config_ChainDestroy, ( config_chain_t * ) );
431 static inline config_chain_t *config_chain_find( config_chain_t *p_cfg, const char *psz_name )
433 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
435 p_cfg = p_cfg->p_next;
441 static inline char *config_chain_find_value( config_chain_t *p_cfg, const char *psz_name )
443 while( p_cfg && strcmp( p_cfg->psz_name, psz_name ) )
445 p_cfg = p_cfg->p_next;
448 if( p_cfg && p_cfg->psz_value )
450 return( p_cfg->psz_value );