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f1c4d20e65
mpv/options/m_option.h
wm4 f1c4d20e65 audio: move replaygain control to top-level options 
af_volume is deprecated, and so are its replaygain sub-options. To make
it possible to use replaygain without deprecated options (and of course
to make it available at all after af_volume is dropped), reintroduce
them as top-level options.

This also means that they are easily changeable at runtime by using them
as properties. Change the "volume" property to use the new update
mechanism as well.

We don't actually bother sharing the implementation between new and
deprecated mechanisms, as the deprecated one will simply be deleted.

For the from_dB() functions, we mention anders' copyright, although I'm
not sure if a mere formula is copyrightable. This will have to be
determined later.

This whole change is mostly untested. Our distributed human CI will take
care of it.
2017-04-26 21:45:55 +02:00

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/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPLAYER_M_OPTION_H
#define MPLAYER_M_OPTION_H
#include <string.h>
#include <stddef.h>
#include <stdbool.h>
#include "misc/bstr.h"
#include "audio/chmap.h"
// m_option allows to parse, print and copy data of various types.
typedef struct m_option_type m_option_type_t;
typedef struct m_option m_option_t;
struct m_config;
struct mp_log;
struct mpv_node;
///////////////////////////// Options types declarations ////////////////////
// Simple types
extern const m_option_type_t m_option_type_flag;
extern const m_option_type_t m_option_type_store;
extern const m_option_type_t m_option_type_int;
extern const m_option_type_t m_option_type_int64;
extern const m_option_type_t m_option_type_intpair;
extern const m_option_type_t m_option_type_float;
extern const m_option_type_t m_option_type_double;
extern const m_option_type_t m_option_type_string;
extern const m_option_type_t m_option_type_string_list;
extern const m_option_type_t m_option_type_string_append_list;
extern const m_option_type_t m_option_type_keyvalue_list;
extern const m_option_type_t m_option_type_time;
extern const m_option_type_t m_option_type_rel_time;
extern const m_option_type_t m_option_type_choice;
extern const m_option_type_t m_option_type_flags;
extern const m_option_type_t m_option_type_msglevels;
extern const m_option_type_t m_option_type_print_fn;
extern const m_option_type_t m_option_type_imgfmt;
extern const m_option_type_t m_option_type_fourcc;
extern const m_option_type_t m_option_type_afmt;
extern const m_option_type_t m_option_type_color;
extern const m_option_type_t m_option_type_geometry;
extern const m_option_type_t m_option_type_size_box;
extern const m_option_type_t m_option_type_channels;
extern const m_option_type_t m_option_type_aspect;
extern const m_option_type_t m_option_type_node;
// Used internally by m_config.c
extern const m_option_type_t m_option_type_alias;
extern const m_option_type_t m_option_type_removed;
extern const m_option_type_t m_option_type_subconfig;
// Callback used by m_option_type_print_fn options.
typedef void (*m_opt_print_fn)(struct mp_log *log);
enum m_rel_time_type {
REL_TIME_NONE,
REL_TIME_ABSOLUTE,
REL_TIME_RELATIVE,
REL_TIME_PERCENT,
REL_TIME_CHAPTER,
};
struct m_rel_time {
double pos;
enum m_rel_time_type type;
};
struct m_color {
uint8_t r, g, b, a;
};
struct m_geometry {
int x, y, w, h;
bool xy_valid : 1, wh_valid : 1;
bool w_per : 1, h_per : 1;
bool x_sign : 1, y_sign : 1, x_per : 1, y_per : 1;
};
void m_geometry_apply(int *xpos, int *ypos, int *widw, int *widh,
int scrw, int scrh, struct m_geometry *gm);
struct m_channels {
bool set : 1;
bool auto_safe : 1;
struct mp_chmap *chmaps;
int num_chmaps;
};
struct m_obj_desc {
// Name which will be used in the option string
const char *name;
// Will be printed when "help" is passed
const char *description;
// Size of the private struct
int priv_size;
// If not NULL, default values for private struct
const void *priv_defaults;
// Options which refer to members in the private struct
const struct m_option *options;
// Prefix for each of the above options (none if NULL).
const char *options_prefix;
// For free use by the implementer of m_obj_list.get_desc
const void *p;
// If not NULL, options which should be set before applying other options.
// This member is usually set by m_obj_list_find() only, and read by the
// option parser. It's not used anywhere else.
const char *init_options;
// Don't list entry with "help"
bool hidden;
// Callback to print custom help if "help" is passed
void (*print_help)(struct mp_log *log);
// Set by m_obj_list_find(). If the requested name is an old alias, this
// is set to the old name (while the name field uses the new name).
const char *replaced_name;
// For convenience: these are added as global command-line options.
const struct m_sub_options *global_opts;
};
// Extra definition needed for \ref m_option_type_obj_settings_list options.
struct m_obj_list {
bool (*get_desc)(struct m_obj_desc *dst, int index);
const char *description;
// Can be set to a NULL terminated array of aliases
const char *aliases[4][5];
// Allow a trailing ",", which adds an entry with name=""
bool allow_trailer;
// Allow unknown entries, for which a dummy entry is inserted, and whose
// options are skipped and ignored.
bool allow_unknown_entries;
// Allow syntax for disabling entries.
bool allow_disable_entries;
// This helps with confusing error messages if unknown flag options are used.
bool disallow_positional_parameters;
// Each sub-item is backed by global options (for AOs and VOs).
bool use_global_options;
};
// Find entry by name
bool m_obj_list_find(struct m_obj_desc *dst, const struct m_obj_list *list,
bstr name);
// The data type used by \ref m_option_type_obj_settings_list.
typedef struct m_obj_settings {
// Type of the object.
char *name;
// Optional user-defined name.
char *label;
// User enable flag.
bool enabled;
// NULL terminated array of parameter/value pairs.
char **attribs;
} m_obj_settings_t;
// A parser to set up a list of objects.
/** It creates a NULL terminated array \ref m_obj_settings. The option priv
* field (\ref m_option::priv) must point to a \ref m_obj_list_t describing
* the available object types.
*/
extern const m_option_type_t m_option_type_obj_settings_list;
struct m_opt_choice_alternatives {
char *name;
int value;
};
const char *m_opt_choice_str(const struct m_opt_choice_alternatives *choices,
int value);
// For OPT_STRING_VALIDATE(). Behaves like m_option_type.parse().
typedef int (*m_opt_string_validate_fn)(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param);
// m_option.priv points to this if OPT_SUBSTRUCT is used
struct m_sub_options {
const char *prefix;
const struct m_option *opts;
size_t size;
const void *defaults;
// Change flags passed to mp_option_change_callback() if any option that is
// directly or indirectly part of this group is changed.
int change_flags;
};
#define CONF_TYPE_FLAG (&m_option_type_flag)
#define CONF_TYPE_STORE (&m_option_type_store)
#define CONF_TYPE_INT (&m_option_type_int)
#define CONF_TYPE_INT64 (&m_option_type_int64)
#define CONF_TYPE_FLOAT (&m_option_type_float)
#define CONF_TYPE_DOUBLE (&m_option_type_double)
#define CONF_TYPE_STRING (&m_option_type_string)
#define CONF_TYPE_STRING_LIST (&m_option_type_string_list)
#define CONF_TYPE_IMGFMT (&m_option_type_imgfmt)
#define CONF_TYPE_FOURCC (&m_option_type_fourcc)
#define CONF_TYPE_AFMT (&m_option_type_afmt)
#define CONF_TYPE_OBJ_SETTINGS_LIST (&m_option_type_obj_settings_list)
#define CONF_TYPE_TIME (&m_option_type_time)
#define CONF_TYPE_CHOICE (&m_option_type_choice)
#define CONF_TYPE_INT_PAIR (&m_option_type_intpair)
#define CONF_TYPE_NODE (&m_option_type_node)
// Possible option values. Code is allowed to access option data without going
// through this union. It serves for self-documentation and to get minimal
// size/alignment requirements for option values in general.
union m_option_value {
int flag; // not the C type "bool"!
int store;
int int_;
int64_t int64;
int intpair[2];
float float_;
double double_;
char *string;
char **string_list;
char **keyvalue_list;
int imgfmt;
unsigned int fourcc;
int afmt;
m_obj_settings_t *obj_settings_list;
double time;
struct m_rel_time rel_time;
struct m_color color;
struct m_geometry geometry;
struct m_geometry size_box;
struct m_channels channels;
};
////////////////////////////////////////////////////////////////////////////
// Option type description
struct m_option_type {
const char *name;
// Size needed for the data.
unsigned int size;
// One of M_OPT_TYPE*.
unsigned int flags;
// Parse the data from a string.
/** It is the only required function, all others can be NULL.
*
* \param log for outputting parser error or help messages
* \param opt The option that is parsed.
* \param name The full option name.
* \param param The parameter to parse.
* may not be an argument meant for this option
* \param dst Pointer to the memory where the data should be written.
* If NULL the parameter validity should still be checked.
* \return On error a negative value is returned, on success the number
* of arguments consumed. For details see \ref OptionParserReturn.
*/
int (*parse)(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst);
// Print back a value in string form.
/** \param opt The option to print.
* \param val Pointer to the memory holding the data to be printed.
* \return An allocated string containing the text value or (void*)-1
* on error.
*/
char *(*print)(const m_option_t *opt, const void *val);
// Print the value in a human readable form. Unlike print(), it doesn't
// necessarily return the exact value, and is generally not parseable with
// parse().
char *(*pretty_print)(const m_option_t *opt, const void *val);
// Copy data between two locations. Deep copy if the data has pointers.
// The implementation must free *dst if memory allocation is involved.
/** \param opt The option to copy.
* \param dst Pointer to the destination memory.
* \param src Pointer to the source memory.
*/
void (*copy)(const m_option_t *opt, void *dst, const void *src);
// Free the data allocated for a save slot.
/** This is only needed for dynamic types like strings.
* \param dst Pointer to the data, usually a pointer that should be freed and
* set to NULL.
*/
void (*free)(void *dst);
// Add the value add to the value in val. For types that are not numeric,
// add gives merely the direction. The wrap parameter determines whether
// the value is clipped, or wraps around to the opposite max/min.
void (*add)(const m_option_t *opt, void *val, double add, bool wrap);
// Multiply the value with the factor f. The callback must clip the result
// to the valid value range of the option.
void (*multiply)(const m_option_t *opt, void *val, double f);
// Set the option value in dst to the contents of src.
// (If the option is dynamic, the old value in *dst has to be freed.)
// Return values:
// M_OPT_UNKNOWN: src is in an unknown format
// M_OPT_INVALID: src is incorrectly formatted
// >= 0: success
// other error code: some other error, essentially M_OPT_INVALID refined
int (*set)(const m_option_t *opt, void *dst, struct mpv_node *src);
// Copy the option value in src to dst. Use ta_parent for any dynamic
// memory allocations. It's explicitly allowed to have mpv_node reference
// static strings (and even mpv_node_list.keys), though.
int (*get)(const m_option_t *opt, void *ta_parent, struct mpv_node *dst,
void *src);
};
// Option description
struct m_option {
// Option name.
const char *name;
// Option type.
const m_option_type_t *type;
// See \ref OptionFlags.
unsigned int flags;
int offset;
// \brief Mostly useful for numeric types, the \ref M_OPT_MIN flags must
// also be set.
double min;
// \brief Mostly useful for numeric types, the \ref M_OPT_MAX flags must
// also be set.
double max;
// Type dependent data (for all kinds of extended settings).
void *priv;
// Initialize variable to given default before parsing options
const void *defval;
// Print a warning when this option is used (for options with no direct
// replacement.)
const char *deprecation_message;
};
// The option has a minimum set in \ref m_option::min.
#define M_OPT_MIN (1 << 0)
// The option has a maximum set in \ref m_option::max.
#define M_OPT_MAX (1 << 1)
// The option has a minimum and maximum in m_option::min and m_option::max.
#define M_OPT_RANGE (M_OPT_MIN | M_OPT_MAX)
// The option is forbidden in config files.
#define M_OPT_NOCFG (1 << 2)
// Can not be freely changed at runtime (normally, all options can be changed,
// even if the settings don't get effective immediately). Note that an option
// might still change even if this is set, e.g. via properties or per-file
// options.
#define M_OPT_FIXED (1 << 3)
// The option should be set during command line pre-parsing
#define M_OPT_PRE_PARSE (1 << 4)
// The option expects a file name (or a list of file names)
#define M_OPT_FILE (1 << 5)
// Do not add as property.
#define M_OPT_NOPROP (1 << 6)
// The following are also part of the M_OPT_* flags, and are used to update
// certain groups of options.
#define UPDATE_OPT_FIRST (1 << 7)
#define UPDATE_TERM (1 << 7) // terminal options
#define UPDATE_RENDERER (1 << 8) // mainly vo_opengl options
#define UPDATE_VIDEOPOS (1 << 9) // video position (panscan etc.)
#define UPDATE_OSD (1 << 10) // related to OSD rendering
#define UPDATE_BUILTIN_SCRIPTS (1 << 11) // osc/ytdl
#define UPDATE_IMGPAR (1 << 12) // video image params overrides
#define UPDATE_INPUT (1 << 13) // mostly --input-* options
#define UPDATE_AUDIO (1 << 14) // --audio-channels etc.
#define UPDATE_PRIORITY (1 << 15) // --priority (Windows-only)
#define UPDATE_SCREENSAVER (1 << 16) // --stop-screensaver
#define UPDATE_VOL (1 << 17) // softvol related options
#define UPDATE_OPT_LAST (1 << 17)
// All bits between _FIRST and _LAST (inclusive)
#define UPDATE_OPTS_MASK \
(((UPDATE_OPT_LAST << 1) - 1) & ~(unsigned)(UPDATE_OPT_FIRST - 1))
// These are kept for compatibility with older code.
#define CONF_MIN M_OPT_MIN
#define CONF_MAX M_OPT_MAX
#define CONF_RANGE M_OPT_RANGE
#define CONF_NOCFG M_OPT_NOCFG
#define CONF_PRE_PARSE M_OPT_PRE_PARSE
// These flags are used to describe special parser capabilities or behavior.
// Wildcard matching flag.
/** If set the option type has a use for option names ending with a *
* (used for -aa*), this only affects the option name matching.
*/
#define M_OPT_TYPE_ALLOW_WILDCARD (1 << 1)
// The parameter is optional and by default no parameter is preferred. If
// ambiguous syntax is used ("--opt value"), the command line parser will
// assume that the argument takes no parameter. In config files, these
// options can be used without "=" and value.
#define M_OPT_TYPE_OPTIONAL_PARAM (1 << 2)
///////////////////////////// Parser flags /////////////////////////////////
// OptionParserReturn
//
// On success parsers return a number >= 0.
//
// To indicate that MPlayer should exit without playing anything,
// parsers return M_OPT_EXIT.
//
// On error one of the following (negative) error codes is returned:
// For use by higher level APIs when the option name is invalid.
#define M_OPT_UNKNOWN -1
// Returned when a parameter is needed but wasn't provided.
#define M_OPT_MISSING_PARAM -2
// Returned when the given parameter couldn't be parsed.
#define M_OPT_INVALID -3
// Returned if the value is "out of range". The exact meaning may
// vary from type to type.
#define M_OPT_OUT_OF_RANGE -4
// The option doesn't take a parameter.
#define M_OPT_DISALLOW_PARAM -5
// Returned if the parser failed for any other reason than a bad parameter.
#define M_OPT_PARSER_ERR -6
// Returned when MPlayer should exit. Used by various help stuff.
#define M_OPT_EXIT -7
char *m_option_strerror(int code);
// Find the option matching the given name in the list.
/** \ingroup Options
* This function takes the possible wildcards into account (see
* \ref M_OPT_TYPE_ALLOW_WILDCARD).
*
* \param list Pointer to an array of \ref m_option.
* \param name Name of the option.
* \return The matching option or NULL.
*/
const m_option_t *m_option_list_find(const m_option_t *list, const char *name);
// Helper to parse options, see \ref m_option_type::parse.
static inline int m_option_parse(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
return opt->type->parse(log, opt, name, param, dst);
}
// Helper to print options, see \ref m_option_type::print.
static inline char *m_option_print(const m_option_t *opt, const void *val_ptr)
{
if (opt->type->print)
return opt->type->print(opt, val_ptr);
else
return NULL;
}
static inline char *m_option_pretty_print(const m_option_t *opt,
const void *val_ptr)
{
if (opt->type->pretty_print)
return opt->type->pretty_print(opt, val_ptr);
else
return m_option_print(opt, val_ptr);
}
// Helper around \ref m_option_type::copy.
static inline void m_option_copy(const m_option_t *opt, void *dst,
const void *src)
{
if (opt->type->copy)
opt->type->copy(opt, dst, src);
}
// Helper around \ref m_option_type::free.
static inline void m_option_free(const m_option_t *opt, void *dst)
{
if (opt->type->free)
opt->type->free(dst);
}
// see m_option_type.set
static inline int m_option_set_node(const m_option_t *opt, void *dst,
struct mpv_node *src)
{
if (opt->type->set)
return opt->type->set(opt, dst, src);
return M_OPT_UNKNOWN;
}
// Call m_option_parse for strings, m_option_set_node otherwise.
int m_option_set_node_or_string(struct mp_log *log, const m_option_t *opt,
const char *name, void *dst, struct mpv_node *src);
// see m_option_type.get
static inline int m_option_get_node(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
if (opt->type->get)
return opt->type->get(opt, ta_parent, dst, src);
return M_OPT_UNKNOWN;
}
int m_option_required_params(const m_option_t *opt);
extern const char m_option_path_separator;
// Cause a compilation warning if typeof(expr) != type.
// Should be used with pointer types only.
#define MP_EXPECT_TYPE(type, expr) (0 ? (type)0 : (expr))
// This behaves like offsetof(type, member), but will cause a compilation
// warning if typeof(member) != expected_member_type.
// It uses some trickery to make it compile as expression.
#define MP_CHECKED_OFFSETOF(type, member, expected_member_type) \
(offsetof(type, member) + (0 && MP_EXPECT_TYPE(expected_member_type*, \
&((type*)0)->member)))
#define OPTION_LIST_SEPARATOR ','
#define OPTDEF_STR(s) .defval = (void *)&(char * const){s}
#define OPTDEF_INT(i) .defval = (void *)&(const int){i}
#define OPTDEF_FLOAT(f) .defval = (void *)&(const float){f}
#define OPTDEF_DOUBLE(d) .defval = (void *)&(const double){d}
#define OPT_GENERAL(ctype, optname, varname, flagv, ...) \
{.name = optname, .flags = flagv, \
.offset = MP_CHECKED_OFFSETOF(OPT_BASE_STRUCT, varname, ctype), \
__VA_ARGS__}
#define OPT_GENERAL_NOTYPE(optname, varname, flagv, ...) \
{.name = optname, .flags = flagv, \
.offset = offsetof(OPT_BASE_STRUCT, varname), \
__VA_ARGS__}
#define OPT_HELPER_REMOVEPAREN(...) __VA_ARGS__
/* The OPT_SOMETHING->OPT_SOMETHING_ kind of redirection exists to
* make the code fully standard-conforming: the C standard requires that
* __VA_ARGS__ has at least one argument (though GCC for example would accept
* 0). Thus the first OPT_SOMETHING is a wrapper which just adds one
* argument to ensure __VA_ARGS__ is not empty when calling the next macro.
*/
#define OPT_FLAG(...) \
OPT_GENERAL(int, __VA_ARGS__, .type = &m_option_type_flag)
#define OPT_FLAG_STORE(optname, varname, flags, value) \
OPT_GENERAL(int, optname, varname, flags, .max = value, \
.type = &m_option_type_store)
#define OPT_STRINGLIST(...) \
OPT_GENERAL(char**, __VA_ARGS__, .type = &m_option_type_string_list)
#define OPT_STRING_APPEND_LIST(...) \
OPT_GENERAL(char**, __VA_ARGS__, .type = &m_option_type_string_append_list)
#define OPT_KEYVALUELIST(...) \
OPT_GENERAL(char**, __VA_ARGS__, .type = &m_option_type_keyvalue_list)
#define OPT_PATHLIST(...) \
OPT_GENERAL(char**, __VA_ARGS__, .type = &m_option_type_string_list, \
.priv = (void *)&m_option_path_separator)
#define OPT_INT(...) \
OPT_GENERAL(int, __VA_ARGS__, .type = &m_option_type_int)
#define OPT_INT64(...) \
OPT_GENERAL(int64_t, __VA_ARGS__, .type = &m_option_type_int64)
#define OPT_RANGE_(ctype, optname, varname, flags, minval, maxval, ...) \
OPT_GENERAL(ctype, optname, varname, (flags) | CONF_RANGE, \
.min = minval, .max = maxval, __VA_ARGS__)
#define OPT_INTRANGE(...) \
OPT_RANGE_(int, __VA_ARGS__, .type = &m_option_type_int)
#define OPT_FLOATRANGE(...) \
OPT_RANGE_(float, __VA_ARGS__, .type = &m_option_type_float)
#define OPT_INTPAIR(...) \
OPT_GENERAL_NOTYPE(__VA_ARGS__, .type = &m_option_type_intpair)
#define OPT_FLOAT(...) \
OPT_GENERAL(float, __VA_ARGS__, .type = &m_option_type_float)
#define OPT_DOUBLE(...) \
OPT_GENERAL(double, __VA_ARGS__, .type = &m_option_type_double)
#define OPT_STRING(...) \
OPT_GENERAL(char*, __VA_ARGS__, .type = &m_option_type_string)
#define OPT_SETTINGSLIST(optname, varname, flags, objlist, ...) \
OPT_GENERAL(m_obj_settings_t*, optname, varname, flags, \
.type = &m_option_type_obj_settings_list, \
.priv = (void*)MP_EXPECT_TYPE(const struct m_obj_list*, objlist), \
__VA_ARGS__)
#define OPT_IMAGEFORMAT(...) \
OPT_GENERAL(int, __VA_ARGS__, .type = &m_option_type_imgfmt)
#define OPT_AUDIOFORMAT(...) \
OPT_GENERAL(int, __VA_ARGS__, .type = &m_option_type_afmt)
// If .min==1, then passing auto is disallowed, but "" is still accepted, and
// limit channel list to 1 item.
#define OPT_CHANNELS(...) \
OPT_GENERAL(struct m_channels, __VA_ARGS__, .type = &m_option_type_channels)
#define M_CHOICES(choices) \
.priv = (void *)&(const struct m_opt_choice_alternatives[]){ \
OPT_HELPER_REMOVEPAREN choices, {NULL}}
#define OPT_CHOICE(...) \
OPT_CHOICE_(__VA_ARGS__, .type = &m_option_type_choice)
#define OPT_CHOICE_(optname, varname, flags, choices, ...) \
OPT_GENERAL(int, optname, varname, flags, M_CHOICES(choices), __VA_ARGS__)
// Variant which takes a pointer to struct m_opt_choice_alternatives directly
#define OPT_CHOICE_C(optname, varname, flags, choices) \
OPT_GENERAL(int, optname, varname, flags, .priv = (void *) \
MP_EXPECT_TYPE(const struct m_opt_choice_alternatives*, choices), \
.type = &m_option_type_choice)
#define OPT_FLAGS(...) \
OPT_CHOICE_(__VA_ARGS__, .type = &m_option_type_flags)
// Union of choices and an int range. The choice values can be included in the
// int range, or be completely separate - both works.
#define OPT_CHOICE_OR_INT_(optname, varname, flags, minval, maxval, choices, ...) \
OPT_GENERAL(int, optname, varname, (flags) | CONF_RANGE, \
.min = minval, .max = maxval, \
M_CHOICES(choices), __VA_ARGS__)
#define OPT_CHOICE_OR_INT(...) \
OPT_CHOICE_OR_INT_(__VA_ARGS__, .type = &m_option_type_choice)
#define OPT_TIME(...) \
OPT_GENERAL(double, __VA_ARGS__, .type = &m_option_type_time)
#define OPT_REL_TIME(...) \
OPT_GENERAL(struct m_rel_time, __VA_ARGS__, .type = &m_option_type_rel_time)
#define OPT_COLOR(...) \
OPT_GENERAL(struct m_color, __VA_ARGS__, .type = &m_option_type_color)
#define OPT_GEOMETRY(...) \
OPT_GENERAL(struct m_geometry, __VA_ARGS__, .type = &m_option_type_geometry)
#define OPT_SIZE_BOX(...) \
OPT_GENERAL(struct m_geometry, __VA_ARGS__, .type = &m_option_type_size_box)
#define OPT_TRACKCHOICE(name, var) \
OPT_CHOICE_OR_INT(name, var, 0, 0, 8190, ({"no", -2}, {"auto", -1}))
#define OPT_ASPECT(...) \
OPT_GENERAL(float, __VA_ARGS__, .type = &m_option_type_aspect)
#define OPT_STRING_VALIDATE_(optname, varname, flags, validate_fn, ...) \
OPT_GENERAL(char*, optname, varname, flags, __VA_ARGS__, \
.priv = MP_EXPECT_TYPE(m_opt_string_validate_fn, validate_fn))
#define OPT_STRING_VALIDATE(...) \
OPT_STRING_VALIDATE_(__VA_ARGS__, .type = &m_option_type_string)
#define OPT_PRINT(optname, fn) \
{.name = optname, \
.flags = M_OPT_FIXED | M_OPT_NOCFG | M_OPT_PRE_PARSE, \
.type = &m_option_type_print_fn, \
.priv = MP_EXPECT_TYPE(m_opt_print_fn, fn), \
.offset = -1}
// subconf must have the type struct m_sub_options.
// All sub-options are prefixed with "name-" and are added to the current
// (containing) option list.
// If name is "", add the sub-options directly instead.
// varname refers to the field, that must be a pointer to a field described by
// the subconf struct.
#define OPT_SUBSTRUCT(name, varname, subconf, flagv) \
OPT_GENERAL_NOTYPE(name, varname, flagv, \
.type = &m_option_type_subconfig, \
.priv = (void*)&subconf)
// Provide a another name for the option.
#define OPT_ALIAS(optname, newname) \
{.name = optname, .type = &m_option_type_alias, .priv = newname, \
.offset = -1}
// If "--optname" was removed, but "--newname" has the same semantics.
// It will be redirected, and a warning will be printed on first use.
#define OPT_REPLACED_MSG(optname, newname, msg) \
{.name = optname, .type = &m_option_type_alias, .priv = newname, \
.deprecation_message = (msg), .offset = -1}
// Same, with a generic deprecation message.
#define OPT_REPLACED(optname, newname) OPT_REPLACED_MSG(optname, newname, "")
// "--optname" doesn't exist, but inform the user about a replacement with msg.
#define OPT_REMOVED(optname, msg) \
{.name = optname, .type = &m_option_type_removed, .priv = msg, \
.deprecation_message = "", .offset = -1}
#endif /* MPLAYER_M_OPTION_H */
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