/src/vlc/include/vlc_configuration.h

Source (jump to first uncovered line)
/*****************************************************************************
 * vlc_configuration.h : configuration management module
 * This file describes the programming interface for the configuration module.
 * It includes functions allowing to declare, get or set configuration options.
 *****************************************************************************
 * Copyright (C) 1999-2006 VLC authors and VideoLAN
 *
 * Authors: Gildas Bazin <gbazin@videolan.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifndef VLC_CONFIGURATION_H
#define VLC_CONFIGURATION_H 1

/**
 * \defgroup config User settings
 * \ingroup interface
 * VLC provides a simple name-value dictionary for user settings.
 *
 * Those settings are per-user per-system - they are shared by all LibVLC
 * instances in a single process, and potentially other processes as well.
 *
 * Each name-value pair is called a configuration item.
 * @{
 */

/**
 * \file
 * This file describes the programming interface for the configuration module.
 * It includes functions allowing to declare, get or set configuration options.
 */

#include <sys/types.h>  /* for ssize_t */

# ifdef __cplusplus
extern "C" {
# endif

typedef union
{
    char       *psz;
    int64_t     i;
    float       f;
} module_value_t;

typedef int (*vlc_string_list_cb)(const char *, char ***, char ***);
typedef int (*vlc_integer_list_cb)(const char *, int64_t **, char ***);

/**
 * Configuration item
 *
 * This is the internal reprensation of a configuration item.
 * See also config_FindConfig().
 */
struct module_config_t
{
    uint8_t     i_type; /**< Configuration type */

    const char *psz_type; /**< Configuration subtype */
    const char *psz_name; /**< Option name */
    const char *psz_text; /**< Short comment on the configuration option */
    const char *psz_longtext; /**< Long comment on the configuration option */

    module_value_t value; /**< Current value */
    module_value_t orig; /**< Default value */
    module_value_t min; /**< Minimum value (for scalars only) */
    module_value_t max; /**< Maximum value (for scalars only) */

    /* Values list */
    uint16_t list_count; /**< Choices count */
    union
    {
        const char **psz; /**< Table of possible string choices */
        const int  *i; /**< Table of possible integer choices */
    } list; /**< Possible choices */
    const char **list_text; /**< Human-readable names for list values */
};

/**
 * Gets a configuration item type
 *
 * This function checks the type of configuration item by name.
 * \param name Configuration item name
 * \return The configuration item type or 0 if not found.
 */
VLC_API int config_GetType(const char *name) VLC_USED;

/**
 * Gets an integer configuration item's value.
 *
 * This function retrieves the current value of a configuration item of
 * integral type (\ref CONFIG_ITEM_INTEGER and \ref CONFIG_ITEM_BOOL).
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of integer or boolean type.
 *
 * \param name Configuration item name
 * \return The configuration item value or -1 if not found.
 * \bug A legitimate integer value of -1 cannot be distinguished from an error.
 */
VLC_API int64_t config_GetInt(const char *name) VLC_USED;

/**
 * Sets an integer configuration item's value.
 *
 * This function changes the current value of a configuration item of
 * integral type (\ref CONFIG_ITEM_INTEGER and \ref CONFIG_ITEM_BOOL).
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of integer or boolean type.
 *
 * \note If no configuration item by the specified exist, the function has no
 * effects.
 *
 * \param name Configuration item name
 * \param val New value
 */
VLC_API void config_PutInt(const char *name, int64_t val);

/**
 * Gets a floating point configuration item's value.
 *
 * This function retrieves the current value of a configuration item of
 * floating point type (\ref CONFIG_ITEM_FLOAT).
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of floating point type.
 *
 * \param name Configuration item name
 * \return The configuration item value or -1 if not found.
 * \bug A legitimate floating point value of -1 cannot be distinguished from an
 * error.
 */
VLC_API float config_GetFloat(const char *name) VLC_USED;

/**
 * Sets a floating point configuration item's value.
 *
 * This function changes the current value of a configuration item of
 * floating point type (\ref CONFIG_ITEM_FLOAT).
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of floating point type.
 *
 * \note If no configuration item by the specified exist, the function has no
 * effects.
 *
 * \param name Configuration item name
 * \param val New value
 */
VLC_API void config_PutFloat(const char *name, float val);

/**
 * Gets a string configuration item's value.
 *
 * This function retrieves the current value of a configuration item of
 * string type (\ref CONFIG_ITEM_STRING).
 *
 * \note The caller must free() the returned pointer (if non-NULL), which is a
 * duplicate of the current value. It is not safe to return a pointer to the
 * current value internally as it can be modified at any time by any other
 * thread.
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of string type.
 *
 * \param name Configuration item name
 * \return Normally, a heap-allocated copy of the configuration item value.
 * If the value is the empty string, if the configuration does not exist,
 * or if an error occurs, NULL is returned.
 * \bug The empty string value cannot be distinguished from an error.
 */
VLC_API char *config_GetPsz(const char *name) VLC_USED VLC_MALLOC;

/**
 * Sets a string configuration item's value.
 *
 * This function changes the current value of a configuration item of
 * string type (e.g. \ref CONFIG_ITEM_STRING).
 *
 * \warning The behaviour is undefined if the configuration item exists but is
 * not of a string type.
 *
 * \note If no configuration item by the specified exist, the function has no
 * effects.
 *
 * \param name Configuration item name
 * \param val New value (will be copied)
 * \bug This function allocates memory but errors cannot be detected.
 */
VLC_API void config_PutPsz(const char *name, const char *val);

/**
 * Enumerates integer configuration choices.
 *
 * Determines a list of suggested values for an integer configuration item.
 * \param values pointer to a table of integer values [OUT]
 * \param texts pointer to a table of descriptions strings [OUT]
 * \return number of choices, or -1 on error
 * \note the caller is responsible for calling free() on all descriptions and
 * on both tables. In case of error, both pointers are set to NULL.
 */
VLC_API ssize_t config_GetIntChoices(const char *, int64_t **values,
                                     char ***texts) VLC_USED;

/**
 * Determines a list of suggested values for a string configuration item.
 * \param values pointer to a table of value strings [OUT]
 * \param texts pointer to a table of descriptions strings [OUT]
 * \return number of choices, or -1 on error
 * \note the caller is responsible for calling free() on all values, on all
 * descriptions and on both tables.
 * In case of error, both pointers are set to NULL.
 */
VLC_API ssize_t config_GetPszChoices(const char *,
                                     char ***values, char ***texts) VLC_USED;

VLC_API int config_SaveConfigFile( libvlc_int_t * );
#define config_SaveConfigFile(a) config_SaveConfigFile(vlc_object_instance(a))

/**
 * Resets the configuration.
 *
 * This function resets all configuration items to their respective
 * compile-time default value.
 */
VLC_API void config_ResetAll(void);

/**
 * Looks up a configuration item.
 *
 * This function looks for the internal representation of a configuration item.
 * Where possible, this should be avoided in favor of more specific function
 * calls.
 *
 * \param name Configuration item name
 * \return The internal structure, or NULL if not found.
 */
VLC_API module_config_t *config_FindConfig(const char *name) VLC_USED;

/**
 * Gets the config label string for a configuration item, acquired by name.
 * A valid configuration item name is required.
 *
 * \param name Configuration item name
 */
static inline const char *config_GetLabel(const char *const psz_name)
{
    module_config_t *const p_config = config_FindConfig(psz_name);

    /* sanity checks */
    if (p_config == NULL)
        return NULL;
    if (p_config->psz_longtext)
        return p_config->psz_longtext;
    if (p_config->psz_text)
        return p_config->psz_text;
    return NULL;
}

/**
 * System directory identifiers
 */
typedef enum vlc_system_dir
{
    VLC_PKG_DATA_DIR, /**< Package-specific architecture-independent read-only
                           data directory (e.g. /usr/local/data/vlc). */
    VLC_PKG_LIB_DIR, /**< Package-specific architecture-dependent read-only
                          data directory (e.g. /usr/local/lib/vlc). */
    VLC_PKG_LIBEXEC_DIR, /**< Package-specific executable read-only directory
                              (e.g. /usr/local/libexec/vlc). */
    VLC_PKG_INCLUDE_DIR_RESERVED,
    VLC_SYSDATA_DIR, /**< Global architecture-independent read-only
                          data directory (e.g. /usr/local/data).
                          Available only on some platforms. */
    VLC_LIB_DIR, /**< Global architecture-dependent read-only directory
                      (e.g. /usr/local/lib). */
    VLC_LIBEXEC_DIR, /**< Global executable read-only directory
                          (e.g. /usr/local/libexec). */
    VLC_INCLUDE_DIR_RESERVED,
    VLC_LOCALE_DIR, /**< Base directory for package read-only locale data. */
} vlc_sysdir_t;

/**
 * Gets an installation directory.
 *
 * This function determines one of the installation directory.
 *
 * @param dir identifier of the directory (see \ref vlc_sysdir_t)
 * @param filename name of a file or other object within the directory
 *                 (or NULL to obtain the plain directory)
 *
 * @return a heap-allocated string (use free() to release it), or NULL on error
 */
VLC_API char *config_GetSysPath(vlc_sysdir_t dir, const char *filename)
VLC_USED VLC_MALLOC;

typedef enum vlc_user_dir
{
    VLC_HOME_DIR, /* User's home */
    VLC_CONFIG_DIR, /* VLC-specific configuration directory */
    VLC_USERDATA_DIR, /* VLC-specific data directory */
    VLC_CACHE_DIR, /* VLC-specific user cached data directory */
    /* Generic directories (same as XDG) */
    VLC_DESKTOP_DIR=0x80,
    VLC_DOWNLOAD_DIR,
    VLC_TEMPLATES_DIR,
    VLC_PUBLICSHARE_DIR,
    VLC_DOCUMENTS_DIR,
    VLC_MUSIC_DIR,
    VLC_PICTURES_DIR,
    VLC_VIDEOS_DIR,
    VLC_SNAPSHOTS_DIR,
} vlc_userdir_t;

VLC_API char * config_GetUserDir( vlc_userdir_t ) VLC_USED VLC_MALLOC;

VLC_API void config_AddIntf(const char *);
VLC_API void config_RemoveIntf(const char *);
VLC_API bool config_ExistIntf(const char *) VLC_USED;

/****************************************************************************
 * config_chain_t:
 ****************************************************************************/
struct config_chain_t
{
    config_chain_t *p_next;     /**< Pointer on the next config_chain_t element */

    char        *psz_name;      /**< Option name */
    char        *psz_value;     /**< Option value */
};

/**
 * This function will
 * - create all options in the array ppsz_options (var_Create).
 * - parse the given linked list of config_chain_t and set the value (var_Set).
 *
 * The option names will be created by adding the psz_prefix prefix.
 */
VLC_API void config_ChainParse( vlc_object_t *, const char *psz_prefix, const char *const *ppsz_options, const config_chain_t * );
#define config_ChainParse( a, b, c, d ) config_ChainParse( VLC_OBJECT(a), b, c, d )

/**
 * This function will parse a configuration string (psz_opts) and
 * - set all options for this module in a chained list (*pp_cfg)
 * - returns a pointer on the next module if any.
 *
 * The string format is
 *   module{option=*,option=*}
 *
 * The options values are unescaped using config_StringUnescape.
 */
VLC_API const char *config_ChainParseOptions( config_chain_t **pp_cfg, const char *ppsz_opts );

/**
 * This function will parse a configuration string (psz_string) and
 * - set the module name (*ppsz_name)
 * - set all options for this module in a chained list (*pp_cfg)
 * - returns a pointer on the next module if any.
 *
 * The string format is
 *   module{option=*,option=*}[:modulenext{option=*,...}]
 *
 * The options values are unescaped using config_StringUnescape.
 */
VLC_API char *config_ChainCreate( char **ppsz_name, config_chain_t **pp_cfg, const char *psz_string ) VLC_USED VLC_MALLOC;

/**
 * This function will release a linked list of config_chain_t
 * (Including the head)
 */
VLC_API void config_ChainDestroy( config_chain_t * );

/**
 * This function will duplicate a linked list of config_chain_t
 */
VLC_API config_chain_t * config_ChainDuplicate( const config_chain_t * ) VLC_USED VLC_MALLOC;

/**
 * This function will unescape a string in place and will return a pointer on
 * the given string.
 * No memory is allocated by it (unlike config_StringEscape).
 * If NULL is given as parameter nothing will be done (NULL will be returned).
 *
 * The following sequences will be unescaped (only one time):
 * \\ \' and \"
 */
VLC_API char * config_StringUnescape( char *psz_string );

/**
 * This function will escape a string that can be unescaped by
 * config_StringUnescape.
 * The returned value is allocated by it. You have to free it once you
 * do not need it anymore (unlike config_StringUnescape).
 * If NULL is given as parameter nothing will be done (NULL will be returned).
 *
 * The escaped characters are ' " and \
 */
VLC_API char * config_StringEscape( const char *psz_string ) VLC_USED VLC_MALLOC;

# ifdef __cplusplus
}
# endif

/** @} */

#endif /* _VLC_CONFIGURATION_H */

Coverage Report

Created: 2025-07-11 07:16

Line	Count	Source (jump to first uncovered line)
1		/*****************************************************************************
2		* vlc_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 VLC authors and VideoLAN
7		*
8		* Authors: Gildas Bazin <gbazin@videolan.org>
9		*
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.
14		*
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.
19		*
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		*****************************************************************************/
24
25		#ifndef VLC_CONFIGURATION_H
26		#define VLC_CONFIGURATION_H 1
27
28		/**
29		* \defgroup config User settings
30		* \ingroup interface
31		* VLC provides a simple name-value dictionary for user settings.
32		*
33		* Those settings are per-user per-system - they are shared by all LibVLC
34		* instances in a single process, and potentially other processes as well.
35		*
36		* Each name-value pair is called a configuration item.
37		* @{
38		*/
39
40		/**
41		* \file
42		* This file describes the programming interface for the configuration module.
43		* It includes functions allowing to declare, get or set configuration options.
44		*/
45
46		#include <sys/types.h> /* for ssize_t */
47
48		# ifdef __cplusplus
49		extern "C" {
50		# endif
51
52		typedef union
53		{
54		char *psz;
55		int64_t i;
56		float f;
57		} module_value_t;
58
59		typedef int (vlc_string_list_cb)(const char , char *, char *);
60		typedef int (vlc_integer_list_cb)(const char , int64_t , char *);
61
62		/**
63		* Configuration item
64		*
65		* This is the internal reprensation of a configuration item.
66		* See also config_FindConfig().
67		*/
68		struct module_config_t
69		{
70		uint8_t i_type; /*< Configuration type /
71
72		const char psz_type; /< Configuration subtype /
73		const char psz_name; /< Option name /
74		const char psz_text; /< Short comment on the configuration option /
75		const char psz_longtext; /< Long comment on the configuration option /
76
77		module_value_t value; /*< Current value /
78		module_value_t orig; /*< Default value /
79		module_value_t min; /*< Minimum value (for scalars only) /
80		module_value_t max; /*< Maximum value (for scalars only) /
81
82		/* Values list */
83		uint16_t list_count; /*< Choices count /
84		union
85		{
86		const char psz; /< Table of possible string choices */
87		const int i; /< Table of possible integer choices /
88		} list; /*< Possible choices /
89		const char list_text; /< Human-readable names for list values */
90		};
91
92		/**
93		* Gets a configuration item type
94		*
95		* This function checks the type of configuration item by name.
96		* \param name Configuration item name
97		* \return The configuration item type or 0 if not found.
98		*/
99		VLC_API int config_GetType(const char *name) VLC_USED;
100
101		/**
102		* Gets an integer configuration item's value.
103		*
104		* This function retrieves the current value of a configuration item of
105		* integral type (\ref CONFIG_ITEM_INTEGER and \ref CONFIG_ITEM_BOOL).
106		*
107		* \warning The behaviour is undefined if the configuration item exists but is
108		* not of integer or boolean type.
109		*
110		* \param name Configuration item name
111		* \return The configuration item value or -1 if not found.
112		* \bug A legitimate integer value of -1 cannot be distinguished from an error.
113		*/
114		VLC_API int64_t config_GetInt(const char *name) VLC_USED;
115
116		/**
117		* Sets an integer configuration item's value.
118		*
119		* This function changes the current value of a configuration item of
120		* integral type (\ref CONFIG_ITEM_INTEGER and \ref CONFIG_ITEM_BOOL).
121		*
122		* \warning The behaviour is undefined if the configuration item exists but is
123		* not of integer or boolean type.
124		*
125		* \note If no configuration item by the specified exist, the function has no
126		* effects.
127		*
128		* \param name Configuration item name
129		* \param val New value
130		*/
131		VLC_API void config_PutInt(const char *name, int64_t val);
132
133		/**
134		* Gets a floating point configuration item's value.
135		*
136		* This function retrieves the current value of a configuration item of
137		* floating point type (\ref CONFIG_ITEM_FLOAT).
138		*
139		* \warning The behaviour is undefined if the configuration item exists but is
140		* not of floating point type.
141		*
142		* \param name Configuration item name
143		* \return The configuration item value or -1 if not found.
144		* \bug A legitimate floating point value of -1 cannot be distinguished from an
145		* error.
146		*/
147		VLC_API float config_GetFloat(const char *name) VLC_USED;
148
149		/**
150		* Sets a floating point configuration item's value.
151		*
152		* This function changes the current value of a configuration item of
153		* floating point type (\ref CONFIG_ITEM_FLOAT).
154		*
155		* \warning The behaviour is undefined if the configuration item exists but is
156		* not of floating point type.
157		*
158		* \note If no configuration item by the specified exist, the function has no
159		* effects.
160		*
161		* \param name Configuration item name
162		* \param val New value
163		*/
164		VLC_API void config_PutFloat(const char *name, float val);
165
166		/**
167		* Gets a string configuration item's value.
168		*
169		* This function retrieves the current value of a configuration item of
170		* string type (\ref CONFIG_ITEM_STRING).
171		*
172		* \note The caller must free() the returned pointer (if non-NULL), which is a
173		* duplicate of the current value. It is not safe to return a pointer to the
174		* current value internally as it can be modified at any time by any other
175		* thread.
176		*
177		* \warning The behaviour is undefined if the configuration item exists but is
178		* not of string type.
179		*
180		* \param name Configuration item name
181		* \return Normally, a heap-allocated copy of the configuration item value.
182		* If the value is the empty string, if the configuration does not exist,
183		* or if an error occurs, NULL is returned.
184		* \bug The empty string value cannot be distinguished from an error.
185		*/
186		VLC_API char config_GetPsz(const char name) VLC_USED VLC_MALLOC;
187
188		/**
189		* Sets a string configuration item's value.
190		*
191		* This function changes the current value of a configuration item of
192		* string type (e.g. \ref CONFIG_ITEM_STRING).
193		*
194		* \warning The behaviour is undefined if the configuration item exists but is
195		* not of a string type.
196		*
197		* \note If no configuration item by the specified exist, the function has no
198		* effects.
199		*
200		* \param name Configuration item name
201		* \param val New value (will be copied)
202		* \bug This function allocates memory but errors cannot be detected.
203		*/
204		VLC_API void config_PutPsz(const char name, const char val);
205
206		/**
207		* Enumerates integer configuration choices.
208		*
209		* Determines a list of suggested values for an integer configuration item.
210		* \param values pointer to a table of integer values [OUT]
211		* \param texts pointer to a table of descriptions strings [OUT]
212		* \return number of choices, or -1 on error
213		* \note the caller is responsible for calling free() on all descriptions and
214		* on both tables. In case of error, both pointers are set to NULL.
215		*/
216		VLC_API ssize_t config_GetIntChoices(const char , int64_t *values,
217		char ***texts) VLC_USED;
218
219		/**
220		* Determines a list of suggested values for a string configuration item.
221		* \param values pointer to a table of value strings [OUT]
222		* \param texts pointer to a table of descriptions strings [OUT]
223		* \return number of choices, or -1 on error
224		* \note the caller is responsible for calling free() on all values, on all
225		* descriptions and on both tables.
226		* In case of error, both pointers are set to NULL.
227		*/
228		VLC_API ssize_t config_GetPszChoices(const char *,
229		char *values, char *texts) VLC_USED;
230
231		VLC_API int config_SaveConfigFile( libvlc_int_t * );
232	0	#define config_SaveConfigFile(a) config_SaveConfigFile(vlc_object_instance(a))
233
234		/**
235		* Resets the configuration.
236		*
237		* This function resets all configuration items to their respective
238		* compile-time default value.
239		*/
240		VLC_API void config_ResetAll(void);
241
242		/**
243		* Looks up a configuration item.
244		*
245		* This function looks for the internal representation of a configuration item.
246		* Where possible, this should be avoided in favor of more specific function
247		* calls.
248		*
249		* \param name Configuration item name
250		* \return The internal structure, or NULL if not found.
251		*/
252		VLC_API module_config_t config_FindConfig(const char name) VLC_USED;
253
254		/**
255		* Gets the config label string for a configuration item, acquired by name.
256		* A valid configuration item name is required.
257		*
258		* \param name Configuration item name
259		*/
260		static inline const char config_GetLabel(const char const psz_name)
261	0	{
262	0	module_config_t *const p_config = config_FindConfig(psz_name);
263	0
264	0	/* sanity checks */
265	0	if (p_config == NULL)
266	0	return NULL;
267	0	if (p_config->psz_longtext)
268	0	return p_config->psz_longtext;
269	0	if (p_config->psz_text)
270	0	return p_config->psz_text;
271	0	return NULL;
272	0	} Unexecuted instantiation: dvbsub.c:config_GetLabel Unexecuted instantiation: libvlc.c:config_GetLabel Unexecuted instantiation: core.c:config_GetLabel Unexecuted instantiation: chain.c:config_GetLabel Unexecuted instantiation: file.c:config_GetLabel Unexecuted instantiation: help.c:config_GetLabel Unexecuted instantiation: cmdline.c:config_GetLabel Unexecuted instantiation: modules.c:config_GetLabel Unexecuted instantiation: bank.c:config_GetLabel Unexecuted instantiation: entry.c:config_GetLabel Unexecuted instantiation: textdomain.c:config_GetLabel Unexecuted instantiation: interface.c:config_GetLabel Unexecuted instantiation: demux.c:config_GetLabel Unexecuted instantiation: services_discovery.c:config_GetLabel Unexecuted instantiation: filters.c:config_GetLabel Unexecuted instantiation: meter.c:config_GetLabel Unexecuted instantiation: output.c:config_GetLabel Unexecuted instantiation: video_output.c:config_GetLabel Unexecuted instantiation: renderer_discovery.c:config_GetLabel Unexecuted instantiation: variables.c:config_GetLabel Unexecuted instantiation: filter.c:config_GetLabel Unexecuted instantiation: filter_chain.c:config_GetLabel Unexecuted instantiation: stream_output.c:config_GetLabel Unexecuted instantiation: dirs.c:config_GetLabel Unexecuted instantiation: art.c:config_GetLabel Unexecuted instantiation: es_out.c:config_GetLabel Unexecuted instantiation: interlacing.c:config_GetLabel Unexecuted instantiation: snapshot.c:config_GetLabel
273
274		/**
275		* System directory identifiers
276		*/
277		typedef enum vlc_system_dir
278		{
279		VLC_PKG_DATA_DIR, /**< Package-specific architecture-independent read-only
280		data directory (e.g. /usr/local/data/vlc). */
281		VLC_PKG_LIB_DIR, /**< Package-specific architecture-dependent read-only
282		data directory (e.g. /usr/local/lib/vlc). */
283		VLC_PKG_LIBEXEC_DIR, /**< Package-specific executable read-only directory
284		(e.g. /usr/local/libexec/vlc). */
285		VLC_PKG_INCLUDE_DIR_RESERVED,
286		VLC_SYSDATA_DIR, /**< Global architecture-independent read-only
287		data directory (e.g. /usr/local/data).
288		Available only on some platforms. */
289		VLC_LIB_DIR, /**< Global architecture-dependent read-only directory
290		(e.g. /usr/local/lib). */
291		VLC_LIBEXEC_DIR, /**< Global executable read-only directory
292		(e.g. /usr/local/libexec). */
293		VLC_INCLUDE_DIR_RESERVED,
294		VLC_LOCALE_DIR, /*< Base directory for package read-only locale data. /
295		} vlc_sysdir_t;
296
297		/**
298		* Gets an installation directory.
299		*
300		* This function determines one of the installation directory.
301		*
302		* @param dir identifier of the directory (see \ref vlc_sysdir_t)
303		* @param filename name of a file or other object within the directory
304		* (or NULL to obtain the plain directory)
305		*
306		* @return a heap-allocated string (use free() to release it), or NULL on error
307		*/
308		VLC_API char config_GetSysPath(vlc_sysdir_t dir, const char filename)
309		VLC_USED VLC_MALLOC;
310
311		typedef enum vlc_user_dir
312		{
313		VLC_HOME_DIR, /* User's home */
314		VLC_CONFIG_DIR, /* VLC-specific configuration directory */
315		VLC_USERDATA_DIR, /* VLC-specific data directory */
316		VLC_CACHE_DIR, /* VLC-specific user cached data directory */
317		/* Generic directories (same as XDG) */
318		VLC_DESKTOP_DIR=0x80,
319		VLC_DOWNLOAD_DIR,
320		VLC_TEMPLATES_DIR,
321		VLC_PUBLICSHARE_DIR,
322		VLC_DOCUMENTS_DIR,
323		VLC_MUSIC_DIR,
324		VLC_PICTURES_DIR,
325		VLC_VIDEOS_DIR,
326		VLC_SNAPSHOTS_DIR,
327		} vlc_userdir_t;
328
329		VLC_API char * config_GetUserDir( vlc_userdir_t ) VLC_USED VLC_MALLOC;
330
331		VLC_API void config_AddIntf(const char *);
332		VLC_API void config_RemoveIntf(const char *);
333		VLC_API bool config_ExistIntf(const char *) VLC_USED;
334
335		/****************************************************************************
336		* config_chain_t:
337		****************************************************************************/
338		struct config_chain_t
339		{
340		config_chain_t p_next; /< Pointer on the next config_chain_t element /
341
342		char psz_name; /< Option name /
343		char psz_value; /< Option value /
344		};
345
346		/**
347		* This function will
348		* - create all options in the array ppsz_options (var_Create).
349		* - parse the given linked list of config_chain_t and set the value (var_Set).
350		*
351		* The option names will be created by adding the psz_prefix prefix.
352		*/
353		VLC_API void config_ChainParse( vlc_object_t , const char psz_prefix, const char const ppsz_options, const config_chain_t * );
354	0	#define config_ChainParse( a, b, c, d ) config_ChainParse( VLC_OBJECT(a), b, c, d )
355
356		/**
357		* This function will parse a configuration string (psz_opts) and
358		* - set all options for this module in a chained list (*pp_cfg)
359		* - returns a pointer on the next module if any.
360		*
361		* The string format is
362		* module{option=,option=}
363		*
364		* The options values are unescaped using config_StringUnescape.
365		*/
366		VLC_API const char config_ChainParseOptions( config_chain_t pp_cfg, const char ppsz_opts );
367
368		/**
369		* This function will parse a configuration string (psz_string) and
370		* - set the module name (*ppsz_name)
371		* - set all options for this module in a chained list (*pp_cfg)
372		* - returns a pointer on the next module if any.
373		*
374		* The string format is
375		* module{option=,option=}[:modulenext{option=*,...}]
376		*
377		* The options values are unescaped using config_StringUnescape.
378		*/
379		VLC_API char config_ChainCreate( char ppsz_name, config_chain_t pp_cfg, const char psz_string ) VLC_USED VLC_MALLOC;
380
381		/**
382		* This function will release a linked list of config_chain_t
383		* (Including the head)
384		*/
385		VLC_API void config_ChainDestroy( config_chain_t * );
386
387		/**
388		* This function will duplicate a linked list of config_chain_t
389		*/
390		VLC_API config_chain_t * config_ChainDuplicate( const config_chain_t * ) VLC_USED VLC_MALLOC;
391
392		/**
393		* This function will unescape a string in place and will return a pointer on
394		* the given string.
395		* No memory is allocated by it (unlike config_StringEscape).
396		* If NULL is given as parameter nothing will be done (NULL will be returned).
397		*
398		* The following sequences will be unescaped (only one time):
399		* \\ \' and \"
400		*/
401		VLC_API char * config_StringUnescape( char *psz_string );
402
403		/**
404		* This function will escape a string that can be unescaped by
405		* config_StringUnescape.
406		* The returned value is allocated by it. You have to free it once you
407		* do not need it anymore (unlike config_StringUnescape).
408		* If NULL is given as parameter nothing will be done (NULL will be returned).
409		*
410		* The escaped characters are ' " and \
411		*/
412		VLC_API char * config_StringEscape( const char *psz_string ) VLC_USED VLC_MALLOC;
413
414		# ifdef __cplusplus
415		}
416		# endif
417
418		/** @} */
419
420		#endif /* _VLC_CONFIGURATION_H */