1 /*****************************************************************************
2 * vlc_variables.h: variables handling
3 *****************************************************************************
4 * Copyright (C) 2002-2004 VLC authors and VideoLAN
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Gildas Bazin <gbazin@netcourrier.com>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 #ifndef VLC_VARIABLES_H
26 #define VLC_VARIABLES_H 1
30 * This file defines functions and structures for dynamic variables in vlc
34 * \defgroup variables Variables
36 * Functions for using the object variables in vlc.
38 * Vlc have a very powerful "object variable" infrastructure useful
44 #define VLC_VAR_TYPE 0x00ff
45 #define VLC_VAR_CLASS 0x00f0
46 #define VLC_VAR_FLAGS 0xff00
49 * \defgroup var_type Variable types
50 * These are the different types a vlc variable can have.
53 #define VLC_VAR_VOID 0x0010
54 #define VLC_VAR_BOOL 0x0020
55 #define VLC_VAR_INTEGER 0x0030
56 #define VLC_VAR_HOTKEY 0x0031
57 #define VLC_VAR_STRING 0x0040
58 #define VLC_VAR_VARIABLE 0x0044
59 #define VLC_VAR_FLOAT 0x0050
60 #define VLC_VAR_TIME 0x0060
61 #define VLC_VAR_ADDRESS 0x0070
62 #define VLC_VAR_COORDS 0x00A0
65 /** \defgroup var_flags Additive flags
66 * These flags are added to the type field of the variable. Most as a result of
67 * a var_Change() call, but some may be added at creation time
70 #define VLC_VAR_HASCHOICE 0x0100
71 #define VLC_VAR_HASMIN 0x0200
72 #define VLC_VAR_HASMAX 0x0400
73 #define VLC_VAR_HASSTEP 0x0800
75 #define VLC_VAR_ISCOMMAND 0x2000
78 /* If the variable is not found on the current module
79 search all parents and finally module config until found */
80 #define VLC_VAR_DOINHERIT 0x8000
84 * \defgroup var_action Variable actions
85 * These are the different actions that can be used with var_Change().
86 * The parameters given are the meaning of the two last parameters of
87 * var_Change() when this action is being used.
92 * Set the minimum value of this variable
93 * \param p_val The new minimum value
94 * \param p_val2 Unused
96 #define VLC_VAR_SETMIN 0x0010
98 * Set the maximum value of this variable
99 * \param p_val The new maximum value
100 * \param p_val2 Unused
102 #define VLC_VAR_SETMAX 0x0011
103 #define VLC_VAR_SETSTEP 0x0012
106 * Set the value of this variable without triggering any callbacks
107 * \param p_val The new value
108 * \param p_val2 Unused
110 #define VLC_VAR_SETVALUE 0x0013
112 #define VLC_VAR_SETTEXT 0x0014
113 #define VLC_VAR_GETTEXT 0x0015
115 #define VLC_VAR_GETMIN 0x0016
116 #define VLC_VAR_GETMAX 0x0017
117 #define VLC_VAR_GETSTEP 0x0018
119 #define VLC_VAR_ADDCHOICE 0x0020
120 #define VLC_VAR_DELCHOICE 0x0021
121 #define VLC_VAR_CLEARCHOICES 0x0022
122 #define VLC_VAR_SETDEFAULT 0x0023
123 #define VLC_VAR_GETCHOICES 0x0024
124 #define VLC_VAR_GETLIST 0x0025
125 #define VLC_VAR_CHOICESCOUNT 0x0026
129 /** \defgroup var_GetAndSet Variable actions
130 * These are the different actions that can be used with var_GetAndSet()
134 VLC_VAR_BOOL_TOGGLE, /**< Invert a boolean value (param ignored) */
135 VLC_VAR_INTEGER_ADD, /**< Add parameter to an integer value */
136 VLC_VAR_INTEGER_OR, /**< Binary OR over an integer bits field */
137 VLC_VAR_INTEGER_NAND,/**< Binary NAND over an integer bits field */
141 /*****************************************************************************
143 *****************************************************************************/
144 VLC_API int var_Create( vlc_object_t *, const char *, int );
145 #define var_Create(a,b,c) var_Create( VLC_OBJECT(a), b, c )
147 VLC_API int var_Destroy( vlc_object_t *, const char * );
148 #define var_Destroy(a,b) var_Destroy( VLC_OBJECT(a), b )
150 VLC_API int var_Change( vlc_object_t *, const char *, int, vlc_value_t *, vlc_value_t * );
151 #define var_Change(a,b,c,d,e) var_Change( VLC_OBJECT(a), b, c, d, e )
153 VLC_API int var_Type( vlc_object_t *, const char * ) VLC_USED;
154 #define var_Type(a,b) var_Type( VLC_OBJECT(a), b )
156 VLC_API int var_Set( vlc_object_t *, const char *, vlc_value_t );
157 #define var_Set(a,b,c) var_Set( VLC_OBJECT(a), b, c )
159 VLC_API int var_Get( vlc_object_t *, const char *, vlc_value_t * );
160 #define var_Get(a,b,c) var_Get( VLC_OBJECT(a), b, c )
162 VLC_API int var_SetChecked( vlc_object_t *, const char *, int, vlc_value_t );
163 #define var_SetChecked(o,n,t,v) var_SetChecked(VLC_OBJECT(o),n,t,v)
164 VLC_API int var_GetChecked( vlc_object_t *, const char *, int, vlc_value_t * );
165 #define var_GetChecked(o,n,t,v) var_GetChecked(VLC_OBJECT(o),n,t,v)
166 VLC_API int var_GetAndSet( vlc_object_t *, const char *, int, vlc_value_t * );
168 VLC_API int var_Inherit( vlc_object_t *, const char *, int, vlc_value_t * );
170 VLC_API void var_FreeList( vlc_value_t *, vlc_value_t * );
173 /*****************************************************************************
175 *****************************************************************************
176 * int MyCallback( vlc_object_t *p_this,
177 * char const *psz_variable,
178 * vlc_value_t oldvalue,
179 * vlc_value_t newvalue,
181 *****************************************************************************/
182 VLC_API int var_AddCallback( vlc_object_t *, const char *, vlc_callback_t, void * );
183 VLC_API int var_DelCallback( vlc_object_t *, const char *, vlc_callback_t, void * );
184 VLC_API int var_TriggerCallback( vlc_object_t *, const char * );
186 VLC_API int var_AddListCallback( vlc_object_t *, const char *, vlc_list_callback_t, void * );
187 VLC_API int var_DelListCallback( vlc_object_t *, const char *, vlc_list_callback_t, void * );
189 #define var_AddCallback(a,b,c,d) var_AddCallback( VLC_OBJECT(a), b, c, d )
190 #define var_DelCallback(a,b,c,d) var_DelCallback( VLC_OBJECT(a), b, c, d )
191 #define var_TriggerCallback(a,b) var_TriggerCallback( VLC_OBJECT(a), b )
193 #define var_AddListCallback(a,b,c,d) var_AddListCallback( VLC_OBJECT(a), b, c, d )
194 #define var_DelListCallback(a,b,c,d) var_DelListCallback( VLC_OBJECT(a), b, c, d )
196 /*****************************************************************************
198 *****************************************************************************/
201 * Set the value of an integer variable
203 * \param p_obj The object that holds the variable
204 * \param psz_name The name of the variable
205 * \param i The new integer value of this variable
207 static inline int var_SetInteger( vlc_object_t *p_obj, const char *psz_name,
212 return var_SetChecked( p_obj, psz_name, VLC_VAR_INTEGER, val );
216 * Set the value of an boolean variable
218 * \param p_obj The object that holds the variable
219 * \param psz_name The name of the variable
220 * \param b The new boolean value of this variable
222 static inline int var_SetBool( vlc_object_t *p_obj, const char *psz_name, bool b )
226 return var_SetChecked( p_obj, psz_name, VLC_VAR_BOOL, val );
230 * Set the value of a time variable
232 * \param p_obj The object that holds the variable
233 * \param psz_name The name of the variable
234 * \param i The new time value of this variable
236 static inline int var_SetTime( vlc_object_t *p_obj, const char *psz_name, int64_t i )
240 return var_SetChecked( p_obj, psz_name, VLC_VAR_TIME, val );
243 static inline int var_SetCoords( vlc_object_t *obj, const char *name,
244 int32_t x, int32_t y )
249 return var_SetChecked (obj, name, VLC_VAR_COORDS, val);
251 #define var_SetCoords(o,n,x,y) var_SetCoords(VLC_OBJECT(o),n,x,y)
254 * Set the value of a float variable
256 * \param p_obj The object that holds the variable
257 * \param psz_name The name of the variable
258 * \param f The new float value of this variable
260 static inline int var_SetFloat( vlc_object_t *p_obj, const char *psz_name, float f )
264 return var_SetChecked( p_obj, psz_name, VLC_VAR_FLOAT, val );
268 * Set the value of a string variable
270 * \param p_obj The object that holds the variable
271 * \param psz_name The name of the variable
272 * \param psz_string The new string value of this variable
274 static inline int var_SetString( vlc_object_t *p_obj, const char *psz_name, const char *psz_string )
277 val.psz_string = (char *)psz_string;
278 return var_SetChecked( p_obj, psz_name, VLC_VAR_STRING, val );
282 * Set the value of a pointer variable
284 * \param p_obj The object that holds the variable
285 * \param psz_name The name of the variable
286 * \param ptr The new pointer value of this variable
289 int var_SetAddress( vlc_object_t *p_obj, const char *psz_name, void *ptr )
293 return var_SetChecked( p_obj, psz_name, VLC_VAR_ADDRESS, val );
296 #define var_SetInteger(a,b,c) var_SetInteger( VLC_OBJECT(a),b,c)
297 #define var_SetBool(a,b,c) var_SetBool( VLC_OBJECT(a),b,c)
298 #define var_SetTime(a,b,c) var_SetTime( VLC_OBJECT(a),b,c)
299 #define var_SetFloat(a,b,c) var_SetFloat( VLC_OBJECT(a),b,c)
300 #define var_SetString(a,b,c) var_SetString( VLC_OBJECT(a),b,c)
301 #define var_SetAddress(o, n, p) var_SetAddress(VLC_OBJECT(o), n, p)
305 * Get an integer value
307 * \param p_obj The object that holds the variable
308 * \param psz_name The name of the variable
311 static inline int64_t var_GetInteger( vlc_object_t *p_obj, const char *psz_name )
314 if( !var_GetChecked( p_obj, psz_name, VLC_VAR_INTEGER, &val ) )
321 * Get a boolean value
323 * \param p_obj The object that holds the variable
324 * \param psz_name The name of the variable
327 static inline bool var_GetBool( vlc_object_t *p_obj, const char *psz_name )
329 vlc_value_t val; val.b_bool = false;
331 if( !var_GetChecked( p_obj, psz_name, VLC_VAR_BOOL, &val ) )
340 * \param p_obj The object that holds the variable
341 * \param psz_name The name of the variable
344 static inline int64_t var_GetTime( vlc_object_t *p_obj, const char *psz_name )
346 vlc_value_t val; val.i_time = 0L;
347 if( !var_GetChecked( p_obj, psz_name, VLC_VAR_TIME, &val ) )
353 static inline void var_GetCoords( vlc_object_t *obj, const char *name,
354 int32_t *px, int32_t *py )
358 if (likely(!var_GetChecked (obj, name, VLC_VAR_COORDS, &val)))
366 #define var_GetCoords(o,n,x,y) var_GetCoords(VLC_OBJECT(o),n,x,y)
371 * \param p_obj The object that holds the variable
372 * \param psz_name The name of the variable
375 static inline float var_GetFloat( vlc_object_t *p_obj, const char *psz_name )
377 vlc_value_t val; val.f_float = 0.0;
378 if( !var_GetChecked( p_obj, psz_name, VLC_VAR_FLOAT, &val ) )
387 * \param p_obj The object that holds the variable
388 * \param psz_name The name of the variable
391 static inline char *var_GetString( vlc_object_t *p_obj, const char *psz_name )
393 vlc_value_t val; val.psz_string = NULL;
394 if( var_GetChecked( p_obj, psz_name, VLC_VAR_STRING, &val ) )
397 return val.psz_string;
401 static inline char *var_GetNonEmptyString( vlc_object_t *p_obj, const char *psz_name )
404 if( var_GetChecked( p_obj, psz_name, VLC_VAR_STRING, &val ) )
406 if( val.psz_string && *val.psz_string )
407 return val.psz_string;
408 free( val.psz_string );
413 static inline void *var_GetAddress( vlc_object_t *p_obj, const char *psz_name )
416 if( var_GetChecked( p_obj, psz_name, VLC_VAR_ADDRESS, &val ) )
419 return val.p_address;
423 * Increment an integer variable
424 * \param p_obj the object that holds the variable
425 * \param psz_name the name of the variable
427 static inline int64_t var_IncInteger( vlc_object_t *p_obj, const char *psz_name )
431 var_GetAndSet( p_obj, psz_name, VLC_VAR_INTEGER_ADD, &val );
434 #define var_IncInteger(a,b) var_IncInteger( VLC_OBJECT(a), b )
437 * Decrement an integer variable
438 * \param p_obj the object that holds the variable
439 * \param psz_name the name of the variable
441 static inline int64_t var_DecInteger( vlc_object_t *p_obj, const char *psz_name )
445 var_GetAndSet( p_obj, psz_name, VLC_VAR_INTEGER_ADD, &val );
448 #define var_DecInteger(a,b) var_DecInteger( VLC_OBJECT(a), b )
450 static inline uint64_t var_OrInteger( vlc_object_t *obj, const char *name,
455 var_GetAndSet( obj, name, VLC_VAR_INTEGER_OR, &val );
458 #define var_OrInteger(a,b,c) var_OrInteger(VLC_OBJECT(a),b,c)
460 static inline uint64_t var_NAndInteger( vlc_object_t *obj, const char *name,
465 var_GetAndSet( obj, name, VLC_VAR_INTEGER_NAND, &val );
468 #define var_NAndInteger(a,b,c) var_NAndInteger(VLC_OBJECT(a),b,c)
471 * Create a integer variable with inherit and get its value.
473 * \param p_obj The object that holds the variable
474 * \param psz_name The name of the variable
477 static inline int64_t var_CreateGetInteger( vlc_object_t *p_obj, const char *psz_name )
479 var_Create( p_obj, psz_name, VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
480 return var_GetInteger( p_obj, psz_name );
484 * Create a boolean variable with inherit and get its value.
486 * \param p_obj The object that holds the variable
487 * \param psz_name The name of the variable
490 static inline bool var_CreateGetBool( vlc_object_t *p_obj, const char *psz_name )
492 var_Create( p_obj, psz_name, VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
493 return var_GetBool( p_obj, psz_name );
497 * Create a time variable with inherit and get its value.
499 * \param p_obj The object that holds the variable
500 * \param psz_name The name of the variable
503 static inline int64_t var_CreateGetTime( vlc_object_t *p_obj, const char *psz_name )
505 var_Create( p_obj, psz_name, VLC_VAR_TIME | VLC_VAR_DOINHERIT );
506 return var_GetTime( p_obj, psz_name );
510 * Create a float variable with inherit and get its value.
512 * \param p_obj The object that holds the variable
513 * \param psz_name The name of the variable
516 static inline float var_CreateGetFloat( vlc_object_t *p_obj, const char *psz_name )
518 var_Create( p_obj, psz_name, VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
519 return var_GetFloat( p_obj, psz_name );
523 * Create a string variable with inherit and get its value.
525 * \param p_obj The object that holds the variable
526 * \param psz_name The name of the variable
529 static inline char *var_CreateGetString( vlc_object_t *p_obj,
530 const char *psz_name )
532 var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT );
533 return var_GetString( p_obj, psz_name );
537 static inline char *var_CreateGetNonEmptyString( vlc_object_t *p_obj,
538 const char *psz_name )
540 var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT );
541 return var_GetNonEmptyString( p_obj, psz_name );
545 * Create an address variable with inherit and get its value.
547 * \param p_obj The object that holds the variable
548 * \param psz_name The name of the variable
551 static inline void *var_CreateGetAddress( vlc_object_t *p_obj,
552 const char *psz_name )
554 var_Create( p_obj, psz_name, VLC_VAR_ADDRESS | VLC_VAR_DOINHERIT );
555 return var_GetAddress( p_obj, psz_name );
558 #define var_CreateGetInteger(a,b) var_CreateGetInteger( VLC_OBJECT(a),b)
559 #define var_CreateGetBool(a,b) var_CreateGetBool( VLC_OBJECT(a),b)
560 #define var_CreateGetTime(a,b) var_CreateGetTime( VLC_OBJECT(a),b)
561 #define var_CreateGetFloat(a,b) var_CreateGetFloat( VLC_OBJECT(a),b)
562 #define var_CreateGetString(a,b) var_CreateGetString( VLC_OBJECT(a),b)
563 #define var_CreateGetNonEmptyString(a,b) var_CreateGetNonEmptyString( VLC_OBJECT(a),b)
564 #define var_CreateGetAddress(a,b) var_CreateGetAddress( VLC_OBJECT(a),b)
567 * Create a integer command variable with inherit and get its value.
569 * \param p_obj The object that holds the variable
570 * \param psz_name The name of the variable
573 static inline int64_t var_CreateGetIntegerCommand( vlc_object_t *p_obj, const char *psz_name )
575 var_Create( p_obj, psz_name, VLC_VAR_INTEGER | VLC_VAR_DOINHERIT
576 | VLC_VAR_ISCOMMAND );
577 return var_GetInteger( p_obj, psz_name );
581 * Create a boolean command variable with inherit and get its value.
583 * \param p_obj The object that holds the variable
584 * \param psz_name The name of the variable
587 static inline bool var_CreateGetBoolCommand( vlc_object_t *p_obj, const char *psz_name )
589 var_Create( p_obj, psz_name, VLC_VAR_BOOL | VLC_VAR_DOINHERIT
590 | VLC_VAR_ISCOMMAND );
591 return var_GetBool( p_obj, psz_name );
595 * Create a time command variable with inherit and get its value.
597 * \param p_obj The object that holds the variable
598 * \param psz_name The name of the variable
601 static inline int64_t var_CreateGetTimeCommand( vlc_object_t *p_obj, const char *psz_name )
603 var_Create( p_obj, psz_name, VLC_VAR_TIME | VLC_VAR_DOINHERIT
604 | VLC_VAR_ISCOMMAND );
605 return var_GetTime( p_obj, psz_name );
609 * Create a float command variable with inherit and get its value.
611 * \param p_obj The object that holds the variable
612 * \param psz_name The name of the variable
615 static inline float var_CreateGetFloatCommand( vlc_object_t *p_obj, const char *psz_name )
617 var_Create( p_obj, psz_name, VLC_VAR_FLOAT | VLC_VAR_DOINHERIT
618 | VLC_VAR_ISCOMMAND );
619 return var_GetFloat( p_obj, psz_name );
623 * Create a string command variable with inherit and get its value.
625 * \param p_obj The object that holds the variable
626 * \param psz_name The name of the variable
629 static inline char *var_CreateGetStringCommand( vlc_object_t *p_obj,
630 const char *psz_name )
632 var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT
633 | VLC_VAR_ISCOMMAND );
634 return var_GetString( p_obj, psz_name );
638 static inline char *var_CreateGetNonEmptyStringCommand( vlc_object_t *p_obj,
639 const char *psz_name )
641 var_Create( p_obj, psz_name, VLC_VAR_STRING | VLC_VAR_DOINHERIT
642 | VLC_VAR_ISCOMMAND );
643 return var_GetNonEmptyString( p_obj, psz_name );
646 #define var_CreateGetIntegerCommand(a,b) var_CreateGetIntegerCommand( VLC_OBJECT(a),b)
647 #define var_CreateGetBoolCommand(a,b) var_CreateGetBoolCommand( VLC_OBJECT(a),b)
648 #define var_CreateGetTimeCommand(a,b) var_CreateGetTimeCommand( VLC_OBJECT(a),b)
649 #define var_CreateGetFloatCommand(a,b) var_CreateGetFloatCommand( VLC_OBJECT(a),b)
650 #define var_CreateGetStringCommand(a,b) var_CreateGetStringCommand( VLC_OBJECT(a),b)
651 #define var_CreateGetNonEmptyStringCommand(a,b) var_CreateGetNonEmptyStringCommand( VLC_OBJECT(a),b)
654 static inline int var_CountChoices( vlc_object_t *p_obj, const char *psz_name )
657 if( var_Change( p_obj, psz_name, VLC_VAR_CHOICESCOUNT, &count, NULL ) )
661 #define var_CountChoices(a,b) var_CountChoices( VLC_OBJECT(a),b)
664 static inline bool var_ToggleBool( vlc_object_t *p_obj, const char *psz_name )
667 var_GetAndSet( p_obj, psz_name, VLC_VAR_BOOL_TOGGLE, &val );
670 #define var_ToggleBool(a,b) var_ToggleBool( VLC_OBJECT(a),b )
674 static inline bool var_InheritBool( vlc_object_t *obj, const char *name )
678 if( var_Inherit( obj, name, VLC_VAR_BOOL, &val ) )
682 #define var_InheritBool(o, n) var_InheritBool(VLC_OBJECT(o), n)
685 static inline int64_t var_InheritInteger( vlc_object_t *obj, const char *name )
689 if( var_Inherit( obj, name, VLC_VAR_INTEGER, &val ) )
693 #define var_InheritInteger(o, n) var_InheritInteger(VLC_OBJECT(o), n)
696 static inline float var_InheritFloat( vlc_object_t *obj, const char *name )
700 if( var_Inherit( obj, name, VLC_VAR_FLOAT, &val ) )
704 #define var_InheritFloat(o, n) var_InheritFloat(VLC_OBJECT(o), n)
707 static inline char *var_InheritString( vlc_object_t *obj, const char *name )
711 if( var_Inherit( obj, name, VLC_VAR_STRING, &val ) )
712 val.psz_string = NULL;
713 else if( val.psz_string && !*val.psz_string )
715 free( val.psz_string );
716 val.psz_string = NULL;
718 return val.psz_string;
720 #define var_InheritString(o, n) var_InheritString(VLC_OBJECT(o), n)
723 static inline mtime_t var_InheritTime( vlc_object_t *obj, const char *name )
727 if( var_Inherit( obj, name, VLC_VAR_TIME, &val ) )
731 #define var_InheritTime(o, n) var_InheritTime(VLC_OBJECT(o), n)
734 static inline void *var_InheritAddress( vlc_object_t *obj, const char *name )
738 if( var_Inherit( obj, name, VLC_VAR_ADDRESS, &val ) )
739 val.p_address = NULL;
740 return val.p_address;
742 #define var_InheritAddress(o, n) var_InheritAddress(VLC_OBJECT(o), n)
744 VLC_API int var_InheritURational( vlc_object_t *, unsigned *num, unsigned *den, const char *var );
745 #define var_InheritURational(a,b,c,d) var_InheritURational(VLC_OBJECT(a), b, c, d)
747 #define var_GetInteger(a,b) var_GetInteger( VLC_OBJECT(a),b)
748 #define var_GetBool(a,b) var_GetBool( VLC_OBJECT(a),b)
749 #define var_GetTime(a,b) var_GetTime( VLC_OBJECT(a),b)
750 #define var_GetFloat(a,b) var_GetFloat( VLC_OBJECT(a),b)
751 #define var_GetString(a,b) var_GetString( VLC_OBJECT(a),b)
752 #define var_GetNonEmptyString(a,b) var_GetNonEmptyString( VLC_OBJECT(a),b)
753 #define var_GetAddress(a,b) var_GetAddress( VLC_OBJECT(a),b)
755 VLC_API int var_LocationParse(vlc_object_t *, const char *mrl, const char *prefix);
756 #define var_LocationParse(o, m, p) var_LocationParse(VLC_OBJECT(o), m, p)
761 #endif /* _VLC_VARIABLES_H */