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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_M_CONFIG_H
#define MPLAYER_M_CONFIG_H
#include <stdbool.h>
#include "core/bstr.h"
// m_config provides an API to manipulate the config variables in MPlayer.
// It makes use of the Options API to provide a context stack that
// allows saving and later restoring the state of all variables.
typedef struct m_profile m_profile_t;
struct m_option;
struct m_option_type;
struct m_sub_options;
// Config option
struct m_config_option {
struct m_config_option *next;
// Full name (ie option-subopt).
char *name;
// Option description.
const struct m_option *opt;
// Raw value of the option.
void *data;
// Raw value of the backup of the global value (or NULL).
void *global_backup;
// If this is a suboption, the option that contains this option.
struct m_config_option *parent;
// If this option aliases another, more important option. The alias_owner
// option is the one that has the most correct option type for the data
// variable, and which is considered the original.
struct m_config_option *alias_owner;
};
// Profiles allow to predefine some sets of options that can then
// be applied later on with the internal -profile option.
// Config profile
struct m_profile {
struct m_profile *next;
char *name;
char *desc;
int num_opts;
// Option/value pair array.
char **opts;
};
// Config object
/** \ingroup Config */
typedef struct m_config {
// Registered options.
/** This contains all options and suboptions.
*/
struct m_config_option *opts;
// When options are set (via m_config_set_option or m_config_set_profile),
// back up the old value (unless it's already backed up). Used for restoring
// global options when per-file options are set.
bool file_local_mode;
// List of defined profiles.
struct m_profile *profiles;
// Depth when recursively including profiles.
int profile_depth;
void *optstruct; // struct mpopts or other
int (*includefunc)(struct m_config *conf, char *filename);
} m_config_t;
// Create a new config object.
struct m_config *
m_config_new(void *optstruct,
int includefunc(struct m_config *conf, char *filename));
struct m_config *m_config_simple(void *optstruct);
// Free a config object.
void m_config_free(struct m_config *config);
void m_config_enter_file_local(struct m_config *config);
void m_config_leave_file_local(struct m_config *config);
void m_config_mark_file_local(struct m_config *config, const char *opt);
void m_config_mark_all_file_local(struct m_config *config);
/* Register some options to be used.
* \param config The config object.
* \param args An array of \ref m_option struct.
* \return 1 on success, 0 on failure.
*/
int m_config_register_options(struct m_config *config,
const struct m_option *args);
enum {
M_SETOPT_PRE_PARSE_ONLY = 1, // Silently ignore non-M_OPT_PRE_PARSE opt.
M_SETOPT_CHECK_ONLY = 2, // Don't set, just check name/value
M_SETOPT_FROM_CONFIG_FILE = 4, // Reject M_OPT_NOCFG opt. (print error)
};
// Set the named option to the given string.
// flags: combination of M_SETOPT_* flags (0 for normal operation)
// Returns >= 0 on success, otherwise see OptionParserReturn.
int m_config_set_option_ext(struct m_config *config, struct bstr name,
struct bstr param, int flags);
/* Set an option. (Like: m_config_set_option_ext(config, name, param, 0))
* \param config The config object.
* \param name The option's name.
* \param param The value of the option, can be NULL.
* \return See \ref OptionParserReturn.
*/
int m_config_set_option(struct m_config *config, struct bstr name,
struct bstr param);
static inline int m_config_set_option0(struct m_config *config,
const char *name, const char *param)
{
return m_config_set_option(config, bstr0(name), bstr0(param));
}
int m_config_parse_suboptions(struct m_config *config, char *name,
char *subopts);
/* Get the option matching the given name.
* \param config The config object.
* \param name The option's name.
*/
const struct m_option *m_config_get_option(const struct m_config *config,
struct bstr name);
struct m_config_option *m_config_get_co(const struct m_config *config,
struct bstr name);
// Return a hint to the option parser whether a parameter is/may be required.
// The option may still accept empty/non-empty parameters independent from
// this, and this function is useful only for handling ambiguous options like
// flags (e.g. "--a" is ok, "--a=yes" is also ok).
// Returns: error code (<0), or number of expected params (0, 1)
int m_config_option_requires_param(struct m_config *config, bstr name);
/* Print a list of all registered options.
* \param config The config object.
*/
void m_config_print_option_list(const struct m_config *config);
/* Find the profile with the given name.
* \param config The config object.
* \param arg The profile's name.
* \return The profile object or NULL.
*/
struct m_profile *m_config_get_profile(const struct m_config *config,
char *name);
/* Get the profile with the given name, creating it if necessary.
* \param config The config object.
* \param arg The profile's name.
* \return The profile object.
*/
struct m_profile *m_config_add_profile(struct m_config *config, char *name);
/* Set the description of a profile.
* Used by the config file parser when defining a profile.
*
* \param p The profile object.
* \param arg The profile's name.
*/
void m_profile_set_desc(struct m_profile *p, char *desc);
/* Add an option to a profile.
* Used by the config file parser when defining a profile.
*
* \param config The config object.
* \param p The profile object.
* \param name The option's name.
* \param val The option's value.
*/
int m_config_set_profile_option(struct m_config *config, struct m_profile *p,
bstr name, bstr val);
/* Enables profile usage
* Used by the config file parser when loading a profile.
*
* \param config The config object.
* \param p The profile object.
*/
void m_config_set_profile(struct m_config *config, struct m_profile *p);
void *m_config_alloc_struct(void *talloc_parent,
const struct m_sub_options *subopts);
#endif /* MPLAYER_M_CONFIG_H */
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