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mpv/options/m_option.c

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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 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.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
/// \file
/// \ingroup Options
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdarg.h>
#include <limits.h>
#include <inttypes.h>
#include <unistd.h>
#include <assert.h>
#include <libavutil/common.h>
#include "libmpv/client.h"
#include "player/client.h"
#include "mpv_talloc.h"
#include "common/common.h"
#include "common/msg.h"
#include "common/msg_control.h"
#include "misc/json.h"
#include "misc/node.h"
#include "m_option.h"
#include "m_config_frontend.h"
#if HAVE_DOS_PATHS
#define OPTION_PATH_SEPARATOR ';'
#else
#define OPTION_PATH_SEPARATOR ':'
#endif
const char m_option_path_separator = OPTION_PATH_SEPARATOR;
// For integer types: since min/max are floats and may not be able to represent
// the real min/max, and since opt.min/.max may use +/-INFINITY, some care has
// to be taken. (Also tricky rounding.)
#define OPT_INT_MIN(opt, T, Tm) ((opt)->min < (opt)->max \
? ((opt)->min <= (double)(Tm) ? (Tm) : (T)((opt)->min)) : (Tm))
#define OPT_INT_MAX(opt, T, Tm) ((opt)->min < (opt)->max \
? ((opt)->max >= (double)(Tm) ? (Tm) : (T)((opt)->max)) : (Tm))
int m_option_parse(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
int r = M_OPT_INVALID;
if (bstr_equals0(param, "help") && opt->help) {
r = opt->help(log, opt, name);
if (r < 0)
return r;
}
r = opt->type->parse(log, opt, name, param, dst);
if (r < 0)
return r;
if (opt->validate) {
r = opt->validate(log, opt, name, dst);
if (r < 0) {
if (opt->type->free)
opt->type->free(dst);
return r;
}
}
return 1;
}
char *m_option_strerror(int code)
{
switch (code) {
case M_OPT_UNKNOWN:
return "option not found";
case M_OPT_MISSING_PARAM:
return "option requires parameter";
case M_OPT_INVALID:
return "option parameter could not be parsed";
case M_OPT_OUT_OF_RANGE:
return "parameter is outside values allowed for option";
case M_OPT_DISALLOW_PARAM:
return "option doesn't take a parameter";
default:
return "parser error";
}
}
int m_option_required_params(const m_option_t *opt)
{
if (opt->type->flags & M_OPT_TYPE_OPTIONAL_PARAM)
return 0;
if (opt->flags & M_OPT_OPTIONAL_PARAM)
return 0;
if (opt->type == &m_option_type_choice) {
const struct m_opt_choice_alternatives *alt;
for (alt = opt->priv; alt->name; alt++) {
if (strcmp(alt->name, "yes") == 0)
return 0;
}
}
return 1;
}
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)
{
if (src->format == MPV_FORMAT_STRING) {
// The af and vf option unfortunately require this, because the
// option name includes the "action".
bstr optname = bstr0(name), a, b;
if (bstr_split_tok(optname, "/", &a, &b))
optname = b;
return m_option_parse(log, opt, optname, bstr0(src->u.string), dst);
} else {
return m_option_set_node(opt, dst, src);
}
}
// Default function that just does a memcpy
static void copy_opt(const m_option_t *opt, void *dst, const void *src)
{
if (dst && src)
memcpy(dst, src, opt->type->size);
}
// Bool
#define VAL(x) (*(bool *)(x))
static int parse_bool(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (bstr_equals0(param, "yes") || !param.len) {
if (dst)
VAL(dst) = 1;
return 1;
}
if (bstr_equals0(param, "no")) {
if (dst)
VAL(dst) = 0;
return 1;
}
bool is_help = bstr_equals0(param, "help");
if (is_help) {
mp_info(log, "Valid values for %.*s flag are:\n", BSTR_P(name));
} else {
mp_fatal(log, "Invalid parameter for %.*s flag: %.*s\n",
BSTR_P(name), BSTR_P(param));
mp_info(log, "Valid values are:\n");
}
mp_info(log, " yes\n");
mp_info(log, " no\n");
mp_info(log, " (passing nothing)\n");
return is_help ? M_OPT_EXIT : M_OPT_INVALID;
}
static char *print_bool(const m_option_t *opt, const void *val)
{
return talloc_strdup(NULL, VAL(val) ? "yes" : "no");
}
static void add_bool(const m_option_t *opt, void *val, double add, bool wrap)
{
if (fabs(add) < 0.5)
return;
bool state = !!VAL(val);
state = wrap ? !state : add > 0;
VAL(val) = state ? 1 : 0;
}
static int bool_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
if (src->format != MPV_FORMAT_FLAG)
return M_OPT_UNKNOWN;
VAL(dst) = !!src->u.flag;
return 1;
}
static int bool_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_FLAG;
dst->u.flag = !!VAL(src);
return 1;
}
static bool bool_equal(const m_option_t *opt, void *a, void *b)
{
return VAL(a) == VAL(b);
}
const m_option_type_t m_option_type_bool = {
.name = "Flag", // same as m_option_type_flag; transparent to user
.size = sizeof(bool),
.flags = M_OPT_TYPE_OPTIONAL_PARAM | M_OPT_TYPE_CHOICE,
.parse = parse_bool,
.print = print_bool,
.copy = copy_opt,
.add = add_bool,
.set = bool_set,
.get = bool_get,
.equal = bool_equal,
};
#undef VAL
// Flag
#define VAL(x) (*(int *)(x))
static int parse_flag(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
bool bdst = false;
int r = parse_bool(log, opt, name, param, &bdst);
if (dst)
VAL(dst) = bdst;
return r;
}
static char *print_flag(const m_option_t *opt, const void *val)
{
return print_bool(opt, &(bool){VAL(val)});
}
static void add_flag(const m_option_t *opt, void *val, double add, bool wrap)
{
bool bval = VAL(val);
add_bool(opt, &bval, add, wrap);
VAL(val) = bval;
}
static int flag_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
bool bdst = false;
int r = bool_set(opt, &bdst, src);
if (r >= 0)
VAL(dst) = bdst;
return r;
}
static int flag_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
return bool_get(opt, ta_parent, dst, &(bool){VAL(src)});
}
static bool flag_equal(const m_option_t *opt, void *a, void *b)
{
return VAL(a) == VAL(b);
}
// Only exists for libmpv interopability and should not be used anywhere.
const m_option_type_t m_option_type_flag = {
// need yes or no in config files
.name = "Flag",
.size = sizeof(int),
.flags = M_OPT_TYPE_OPTIONAL_PARAM | M_OPT_TYPE_CHOICE,
.parse = parse_flag,
.print = print_flag,
.copy = copy_opt,
.add = add_flag,
.set = flag_set,
.get = flag_get,
.equal = flag_equal,
};
// Integer
#undef VAL
static int clamp_longlong(const m_option_t *opt, long long i_min, long long i_max,
void *val)
{
long long v = *(long long *)val;
int r = 0;
long long min = OPT_INT_MIN(opt, long long, i_min);
long long max = OPT_INT_MAX(opt, long long, i_max);
if (v > max) {
v = max;
r = M_OPT_OUT_OF_RANGE;
}
if (v < min) {
v = min;
r = M_OPT_OUT_OF_RANGE;
}
*(long long *)val = v;
return r;
}
static int parse_longlong(struct mp_log *log, const m_option_t *opt,
long long i_min, long long i_max,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
struct bstr rest;
long long tmp_int = bstrtoll(param, &rest, 10);
if (rest.len)
tmp_int = bstrtoll(param, &rest, 0);
if (rest.len) {
mp_err(log, "The %.*s option must be an integer: %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
long long min = OPT_INT_MIN(opt, long long, i_min);
if (tmp_int < min) {
mp_err(log, "The %.*s option must be >= %lld: %.*s\n",
BSTR_P(name), min, BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
long long max = OPT_INT_MAX(opt, long long, i_max);
if (tmp_int > max) {
mp_err(log, "The %.*s option must be <= %lld: %.*s\n",
BSTR_P(name), max, BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
if (dst)
*(long long *)dst = tmp_int;
return 1;
}
static int clamp_int64(const m_option_t *opt, void *val)
{
long long tmp = *(int64_t *)val;
int r = clamp_longlong(opt, INT64_MIN, INT64_MAX, &tmp);
*(int64_t *)val = tmp;
return r;
}
static int parse_int(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
long long tmp;
int r = parse_longlong(log, opt, INT_MIN, INT_MAX, name, param, &tmp);
if (r >= 0 && dst)
*(int *)dst = tmp;
return r;
}
static int parse_int64(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
long long tmp;
int r = parse_longlong(log, opt, INT64_MIN, INT64_MAX, name, param, &tmp);
if (r >= 0 && dst)
*(int64_t *)dst = tmp;
return r;
}
static char *print_int(const m_option_t *opt, const void *val)
{
if (opt->type->size == sizeof(int64_t))
return talloc_asprintf(NULL, "%"PRId64, *(const int64_t *)val);
return talloc_asprintf(NULL, "%d", *(const int *)val);
}
static void add_int64(const m_option_t *opt, void *val, double add, bool wrap)
{
int64_t v = *(int64_t *)val;
clamp_int64(opt, &v);
v = v + add;
bool is64 = opt->type->size == sizeof(int64_t);
int64_t nmin = is64 ? INT64_MIN : INT_MIN;
int64_t nmax = is64 ? INT64_MAX : INT_MAX;
int64_t min = OPT_INT_MIN(opt, int64_t, nmin);
int64_t max = OPT_INT_MAX(opt, int64_t, nmax);
if (v < min)
v = wrap ? max : min;
if (v > max)
v = wrap ? min : max;
*(int64_t *)val = v;
}
static void add_int(const m_option_t *opt, void *val, double add, bool wrap)
{
int64_t tmp = *(int *)val;
add_int64(opt, &tmp, add, wrap);
*(int *)val = tmp;
}
static void multiply_int64(const m_option_t *opt, void *val, double f)
{
double v = *(int64_t *)val * f;
int64_t iv = v;
if (v < INT64_MIN)
iv = INT64_MIN;
if (v >= (double)INT64_MAX)
iv = INT64_MAX;
*(int64_t *)val = iv;
clamp_int64(opt, val);
}
static void multiply_int(const m_option_t *opt, void *val, double f)
{
int64_t tmp = *(int *)val;
multiply_int64(opt, &tmp, f);
*(int *)val = MPCLAMP(tmp, INT_MIN, INT_MAX);
}
static int int64_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
if (src->format != MPV_FORMAT_INT64)
return M_OPT_UNKNOWN;
int64_t val = src->u.int64;
if (val < OPT_INT_MIN(opt, int64_t, INT64_MIN))
return M_OPT_OUT_OF_RANGE;
if (val > OPT_INT_MAX(opt, int64_t, INT64_MAX))
return M_OPT_OUT_OF_RANGE;
*(int64_t *)dst = val;
return 1;
}
static int int_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
int64_t val;
int r = int64_set(opt, &val, src);
if (r >= 0) {
if (val < INT_MIN || val > INT_MAX)
return M_OPT_OUT_OF_RANGE;
*(int *)dst = val;
}
return r;
}
static int int64_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_INT64;
dst->u.int64 = *(int64_t *)src;
return 1;
}
static int int_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_INT64;
dst->u.int64 = *(int *)src;
return 1;
}
static bool int_equal(const m_option_t *opt, void *a, void *b)
{
return *(int *)a == *(int *)b;
}
static bool int64_equal(const m_option_t *opt, void *a, void *b)
{
return *(int64_t *)a == *(int64_t *)b;
}
const m_option_type_t m_option_type_int = {
.name = "Integer",
.flags = M_OPT_TYPE_USES_RANGE,
.size = sizeof(int),
.parse = parse_int,
.print = print_int,
.copy = copy_opt,
.add = add_int,
.multiply = multiply_int,
.set = int_set,
.get = int_get,
.equal = int_equal,
};
const m_option_type_t m_option_type_int64 = {
.name = "Integer64",
.flags = M_OPT_TYPE_USES_RANGE,
.size = sizeof(int64_t),
.parse = parse_int64,
.print = print_int,
.copy = copy_opt,
.add = add_int64,
.multiply = multiply_int64,
.set = int64_set,
.get = int64_get,
.equal = int64_equal,
};
static int parse_byte_size(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
struct bstr r;
long long tmp_int = bstrtoll(param, &r, 0);
int64_t unit = 1;
if (r.len) {
if (bstrcasecmp0(r, "b") == 0) {
unit = 1;
} else if (bstrcasecmp0(r, "kib") == 0 || bstrcasecmp0(r, "k") == 0) {
unit = 1024;
} else if (bstrcasecmp0(r, "mib") == 0 || bstrcasecmp0(r, "m") == 0) {
unit = 1024 * 1024;
} else if (bstrcasecmp0(r, "gib") == 0 || bstrcasecmp0(r, "g") == 0) {
unit = 1024 * 1024 * 1024;
} else if (bstrcasecmp0(r, "tib") == 0 || bstrcasecmp0(r, "t") == 0) {
unit = 1024 * 1024 * 1024 * 1024LL;
} else {
mp_err(log, "The %.*s option must be an integer: %.*s\n",
BSTR_P(name), BSTR_P(param));
mp_err(log, "The following suffixes are also allowed: "
"KiB, MiB, GiB, TiB, B, K, M, G, T.\n");
return M_OPT_INVALID;
}
}
if (tmp_int < 0) {
mp_err(log, "The %.*s option does not support negative numbers: %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
if (INT64_MAX / unit < tmp_int) {
mp_err(log, "The %.*s option overflows: %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
tmp_int *= unit;
int64_t min = OPT_INT_MIN(opt, int64_t, INT64_MIN);
if (tmp_int < min) {
mp_err(log, "The %.*s option must be >= %"PRId64": %.*s\n",
BSTR_P(name), min, BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
int64_t max = OPT_INT_MAX(opt, int64_t, INT64_MAX);
if (tmp_int > max) {
mp_err(log, "The %.*s option must be <= %"PRId64": %.*s\n",
BSTR_P(name), max, BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
if (dst)
*(int64_t *)dst = tmp_int;
return 1;
}
char *format_file_size(int64_t size)
{
double s = size;
if (size < 1024)
return talloc_asprintf(NULL, "%.0f B", s);
if (size < (1024 * 1024))
return talloc_asprintf(NULL, "%.3f KiB", s / (1024.0));
if (size < (1024 * 1024 * 1024))
return talloc_asprintf(NULL, "%.3f MiB", s / (1024.0 * 1024.0));
if (size < (1024LL * 1024LL * 1024LL * 1024LL))
return talloc_asprintf(NULL, "%.3f GiB", s / (1024.0 * 1024.0 * 1024.0));
return talloc_asprintf(NULL, "%.3f TiB", s / (1024.0 * 1024.0 * 1024.0 * 1024.0));
}
static char *pretty_print_byte_size(const m_option_t *opt, const void *val)
{
return format_file_size(*(int64_t *)val);
}
const m_option_type_t m_option_type_byte_size = {
.name = "ByteSize",
.flags = M_OPT_TYPE_USES_RANGE,
.size = sizeof(int64_t),
.parse = parse_byte_size,
.print = print_int,
.pretty_print = pretty_print_byte_size,
.copy = copy_opt,
.add = add_int64,
.multiply = multiply_int64,
.set = int64_set,
.get = int64_get,
.equal = int64_equal,
};
const char *m_opt_choice_str(const struct m_opt_choice_alternatives *choices,
int value)
{
for (const struct m_opt_choice_alternatives *c = choices; c->name; c++) {
if (c->value == value)
return c->name;
}
return NULL;
}
static void print_choice_values(struct mp_log *log, const struct m_option *opt)
{
const struct m_opt_choice_alternatives *alt = opt->priv;
for ( ; alt->name; alt++)
mp_info(log, " %s\n", alt->name[0] ? alt->name : "(passing nothing)");
if (opt->min < opt->max)
mp_info(log, " %g-%g (integer range)\n", opt->min, opt->max);
}
static int parse_choice(struct mp_log *log, const struct m_option *opt,
struct bstr name, struct bstr param, void *dst)
{
const struct m_opt_choice_alternatives *alt = opt->priv;
for ( ; alt->name; alt++) {
if (!bstrcmp0(param, alt->name))
break;
}
if (!alt->name && param.len == 0) {
// allow flag-style options, e.g. "--mute" implies "--mute=yes"
for (alt = opt->priv; alt->name; alt++) {
if (!strcmp("yes", alt->name))
break;
}
}
if (!alt->name) {
if (!bstrcmp0(param, "help")) {
mp_info(log, "Valid values for option %.*s are:\n", BSTR_P(name));
print_choice_values(log, opt);
return M_OPT_EXIT;
}
if (param.len == 0)
return M_OPT_MISSING_PARAM;
if (opt->min < opt->max) {
long long val;
if (parse_longlong(mp_null_log, opt, INT_MIN, INT_MAX, name, param,
&val) == 1)
{
if (dst)
*(int *)dst = val;
return 1;
}
}
mp_fatal(log, "Invalid value for option %.*s: %.*s\n",
BSTR_P(name), BSTR_P(param));
mp_info(log, "Valid values are:\n");
print_choice_values(log, opt);
return M_OPT_INVALID;
}
if (dst)
*(int *)dst = alt->value;
return 1;
}
static void choice_get_min_max(const struct m_option *opt, int *min, int *max)
{
assert(opt->type == &m_option_type_choice);
*min = INT_MAX;
*max = INT_MIN;
for (const struct m_opt_choice_alternatives *alt = opt->priv; alt->name; alt++) {
*min = MPMIN(*min, alt->value);
*max = MPMAX(*max, alt->value);
}
if (opt->min < opt->max) {
*min = MPMIN(*min, opt->min);
*max = MPMAX(*max, opt->max);
}
}
static void check_choice(int dir, int val, bool *found, int *best, int choice)
{
if ((dir == -1 && (!(*found) || choice > (*best)) && choice < val) ||
(dir == +1 && (!(*found) || choice < (*best)) && choice > val))
{
*found = true;
*best = choice;
}
}
static void add_choice(const m_option_t *opt, void *val, double add, bool wrap)
{
assert(opt->type == &m_option_type_choice);
int dir = add > 0 ? +1 : -1;
bool found = false;
int ival = *(int *)val;
int best = 0; // init. value unused
if (fabs(add) < 0.5)
return;
if (opt->min < opt->max) {
int newval = ival + add;
if (ival >= opt->min && ival <= opt->max &&
newval >= opt->min && newval <= opt->max)
{
found = true;
best = newval;
} else {
check_choice(dir, ival, &found, &best, opt->min);
check_choice(dir, ival, &found, &best, opt->max);
}
}
for (const struct m_opt_choice_alternatives *alt = opt->priv; alt->name; alt++)
check_choice(dir, ival, &found, &best, alt->value);
if (!found) {
int min, max;
choice_get_min_max(opt, &min, &max);
best = (dir == -1) ^ wrap ? min : max;
}
*(int *)val = best;
}
static int choice_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
char buf[80];
char *src_str = NULL;
if (src->format == MPV_FORMAT_INT64) {
snprintf(buf, sizeof(buf), "%" PRId64, src->u.int64);
src_str = buf;
} else if (src->format == MPV_FORMAT_STRING) {
src_str = src->u.string;
} else if (src->format == MPV_FORMAT_FLAG) {
src_str = src->u.flag ? "yes" : "no";
}
if (!src_str)
return M_OPT_UNKNOWN;
int val = 0;
int r = parse_choice(mp_null_log, opt, (bstr){0}, bstr0(src_str), &val);
if (r >= 0)
*(int *)dst = val;
return r;
}
static const struct m_opt_choice_alternatives *get_choice(const m_option_t *opt,
const void *val,
int *out_val)
{
int v = *(int *)val;
const struct m_opt_choice_alternatives *alt;
for (alt = opt->priv; alt->name; alt++) {
if (alt->value == v)
return alt;
}
if (opt->min < opt->max) {
if (v >= opt->min && v <= opt->max) {
*out_val = v;
return NULL;
}
}
MP_ASSERT_UNREACHABLE();
}
static int choice_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
int ival = 0;
const struct m_opt_choice_alternatives *alt = get_choice(opt, src, &ival);
// If a choice string looks like a number, return it as number
if (alt) {
char *end = NULL;
ival = strtol(alt->name, &end, 10);
if (end && !end[0])
alt = NULL;
}
if (alt) {
int b = -1;
if (strcmp(alt->name, "yes") == 0) {
b = 1;
} else if (strcmp(alt->name, "no") == 0) {
b = 0;
}
if (b >= 0) {
dst->format = MPV_FORMAT_FLAG;
dst->u.flag = b;
} else {
dst->format = MPV_FORMAT_STRING;
dst->u.string = talloc_strdup(ta_parent, alt->name);
}
} else {
dst->format = MPV_FORMAT_INT64;
dst->u.int64 = ival;
}
return 1;
}
static char *print_choice(const m_option_t *opt, const void *val)
{
int ival = 0;
const struct m_opt_choice_alternatives *alt = get_choice(opt, val, &ival);
return alt ? talloc_strdup(NULL, alt->name)
: talloc_asprintf(NULL, "%d", ival);
}
const struct m_option_type m_option_type_choice = {
.name = "Choice",
.size = sizeof(int),
.flags = M_OPT_TYPE_CHOICE | M_OPT_TYPE_USES_RANGE,
.parse = parse_choice,
.print = print_choice,
.copy = copy_opt,
.add = add_choice,
.set = choice_set,
.get = choice_get,
.equal = int_equal,
};
static int apply_flag(const struct m_option *opt, int *val, bstr flag)
{
const struct m_opt_choice_alternatives *alt;
for (alt = opt->priv; alt->name; alt++) {
if (bstr_equals0(flag, alt->name)) {
if (*val & alt->value)
return M_OPT_INVALID;
*val |= alt->value;
return 0;
}
}
return M_OPT_UNKNOWN;
}
static const char *find_next_flag(const struct m_option *opt, int *val)
{
const struct m_opt_choice_alternatives *best = NULL;
const struct m_opt_choice_alternatives *alt;
for (alt = opt->priv; alt->name; alt++) {
if (alt->value && (alt->value & (*val)) == alt->value) {
if (!best || av_popcount64(alt->value) > av_popcount64(best->value))
best = alt;
}
}
if (best) {
*val = *val & ~(unsigned)best->value;
return best->name;
}
*val = 0; // if there are still flags left, there's not much we can do
return NULL;
}
static int parse_flags(struct mp_log *log, const struct m_option *opt,
struct bstr name, struct bstr param, void *dst)
{
int value = 0;
while (param.len) {
bstr flag;
bstr_split_tok(param, "+", &flag, &param);
int r = apply_flag(opt, &value, flag);
if (r == M_OPT_UNKNOWN) {
mp_fatal(log, "Invalid flag for option %.*s: %.*s\n",
BSTR_P(name), BSTR_P(flag));
mp_info(log, "Valid flags are:\n");
const struct m_opt_choice_alternatives *alt;
for (alt = opt->priv; alt->name; alt++)
mp_info(log, " %s\n", alt->name);
mp_info(log, "Flags can usually be combined with '+'.\n");
return M_OPT_INVALID;
} else if (r < 0) {
mp_fatal(log, "Option %.*s: flag '%.*s' conflicts with a previous "
"flag value.\n", BSTR_P(name), BSTR_P(flag));
return M_OPT_INVALID;
}
}
if (dst)
*(int *)dst = value;
return 1;
}
static int flags_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
int value = 0;
if (src->format != MPV_FORMAT_NODE_ARRAY)
return M_OPT_UNKNOWN;
struct mpv_node_list *srclist = src->u.list;
for (int n = 0; n < srclist->num; n++) {
if (srclist->values[n].format != MPV_FORMAT_STRING)
return M_OPT_INVALID;
if (apply_flag(opt, &value, bstr0(srclist->values[n].u.string)) < 0)
return M_OPT_INVALID;
}
*(int *)dst = value;
return 0;
}
static int flags_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
int value = *(int *)src;
dst->format = MPV_FORMAT_NODE_ARRAY;
dst->u.list = talloc_zero(ta_parent, struct mpv_node_list);
struct mpv_node_list *list = dst->u.list;
while (1) {
const char *flag = find_next_flag(opt, &value);
if (!flag)
break;
struct mpv_node node;
node.format = MPV_FORMAT_STRING;
node.u.string = (char *)flag;
MP_TARRAY_APPEND(list, list->values, list->num, node);
}
return 1;
}
static char *print_flags(const m_option_t *opt, const void *val)
{
int value = *(int *)val;
char *res = talloc_strdup(NULL, "");
while (1) {
const char *flag = find_next_flag(opt, &value);
if (!flag)
break;
res = talloc_asprintf_append_buffer(res, "%s%s", res[0] ? "+" : "", flag);
}
return res;
}
const struct m_option_type m_option_type_flags = {
.name = "Flags",
.size = sizeof(int),
.parse = parse_flags,
.print = print_flags,
.copy = copy_opt,
.set = flags_set,
.get = flags_get,
.equal = int_equal,
};
// Float
#undef VAL
#define VAL(x) (*(double *)(x))
static int clamp_double(const m_option_t *opt, void *val)
{
double v = VAL(val);
int r = 0;
if (opt->min < opt->max) {
if (v > opt->max) {
v = opt->max;
r = M_OPT_OUT_OF_RANGE;
}
if (v < opt->min) {
v = opt->min;
r = M_OPT_OUT_OF_RANGE;
}
}
// (setting max/min to INFINITY/-INFINITY is allowed)
if (!isfinite(v) && v != opt->max && v != opt->min) {
v = opt->min;
r = M_OPT_OUT_OF_RANGE;
}
VAL(val) = v;
return r;
}
static int parse_double(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
struct bstr rest;
double tmp_float = bstrtod(param, &rest);
if (bstr_eatstart0(&rest, ":") || bstr_eatstart0(&rest, "/"))
tmp_float /= bstrtod(rest, &rest);
if ((opt->flags & M_OPT_DEFAULT_NAN) && bstr_equals0(param, "default")) {
tmp_float = NAN;
goto done;
}
if (rest.len) {
mp_err(log, "The %.*s option must be a floating point number or a "
"ratio (numerator[:/]denominator): %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
if (clamp_double(opt, &tmp_float) < 0) {
mp_err(log, "The %.*s option is out of range: %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_OUT_OF_RANGE;
}
done:
if (dst)
VAL(dst) = tmp_float;
return 1;
}
static char *print_double(const m_option_t *opt, const void *val)
{
double f = VAL(val);
if (isnan(f) && (opt->flags & M_OPT_DEFAULT_NAN))
return talloc_strdup(NULL, "default");
return talloc_asprintf(NULL, "%f", f);
}
static char *print_double_7g(const m_option_t *opt, const void *val)
{
double f = VAL(val);
if (isnan(f))
return print_double(opt, val);
// Truncate anything < 1e-4 to avoid switching to scientific notation
if (fabs(f) < 1e-4) {
return talloc_strdup(NULL, "0");
} else {
return talloc_asprintf(NULL, "%.7g", f);
}
}
static void add_double(const m_option_t *opt, void *val, double add, bool wrap)
{
double v = VAL(val);
v = v + add;
double min = opt->min < opt->max ? opt->min : -INFINITY;
double max = opt->min < opt->max ? opt->max : +INFINITY;
if (v < min)
v = wrap ? max : min;
if (v > max)
v = wrap ? min : max;
VAL(val) = v;
}
static void multiply_double(const m_option_t *opt, void *val, double f)
{
*(double *)val *= f;
clamp_double(opt, val);
}
static int double_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
double val;
if (src->format == MPV_FORMAT_INT64) {
// Can't always be represented exactly, but don't care.
val = src->u.int64;
} else if (src->format == MPV_FORMAT_DOUBLE) {
val = src->u.double_;
} else {
return M_OPT_UNKNOWN;
}
if (clamp_double(opt, &val) < 0)
return M_OPT_OUT_OF_RANGE;
*(double *)dst = val;
return 1;
}
static int double_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
double f = *(double *)src;
if (isnan(f) && (opt->flags & M_OPT_DEFAULT_NAN)) {
dst->format = MPV_FORMAT_STRING;
dst->u.string = talloc_strdup(ta_parent, "default");
} else {
dst->format = MPV_FORMAT_DOUBLE;
dst->u.double_ = f;
}
return 1;
}
static bool double_equal(const m_option_t *opt, void *a, void *b)
{
double fa = VAL(a), fb = VAL(b);
if (isnan(fa) || isnan(fb))
return isnan(fa) == isnan(fb);
return fa == fb;
}
const m_option_type_t m_option_type_double = {
// double precision float or ratio (numerator[:/]denominator)
.name = "Double",
.flags = M_OPT_TYPE_USES_RANGE,
.size = sizeof(double),
.parse = parse_double,
.print = print_double,
.pretty_print = print_double_7g,
.copy = copy_opt,
.add = add_double,
.multiply = multiply_double,
.set = double_set,
.get = double_get,
.equal = double_equal,
};
static int parse_double_aspect(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (bstr_equals0(param, "no")) {
if (dst)
VAL(dst) = 0.0;
return 1;
}
return parse_double(log, opt, name, param, dst);
}
const m_option_type_t m_option_type_aspect = {
.name = "Aspect",
.size = sizeof(double),
.flags = M_OPT_TYPE_CHOICE | M_OPT_TYPE_USES_RANGE,
.parse = parse_double_aspect,
.print = print_double,
.pretty_print = print_double_7g,
.copy = copy_opt,
.add = add_double,
.multiply = multiply_double,
.set = double_set,
.get = double_get,
.equal = double_equal,
};
#undef VAL
#define VAL(x) (*(float *)(x))
static int parse_float(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
double tmp;
int r = parse_double(log, opt, name, param, &tmp);
if (r == 1 && dst)
VAL(dst) = tmp;
return r;
}
static char *print_float(const m_option_t *opt, const void *val)
{
double tmp = VAL(val);
return print_double(opt, &tmp);
}
static char *print_float_f3(const m_option_t *opt, const void *val)
{
double tmp = VAL(val);
return print_double_7g(opt, &tmp);
}
static void add_float(const m_option_t *opt, void *val, double add, bool wrap)
{
double tmp = VAL(val);
add_double(opt, &tmp, add, wrap);
VAL(val) = tmp;
}
static void multiply_float(const m_option_t *opt, void *val, double f)
{
double tmp = VAL(val);
multiply_double(opt, &tmp, f);
VAL(val) = tmp;
}
static int float_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
double tmp;
int r = double_set(opt, &tmp, src);
if (r >= 0)
VAL(dst) = tmp;
return r;
}
static int float_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
double tmp = VAL(src);
return double_get(opt, ta_parent, dst, &tmp);
}
static bool float_equal(const m_option_t *opt, void *a, void *b)
{
return double_equal(opt, &(double){VAL(a)}, &(double){VAL(b)});
}
const m_option_type_t m_option_type_float = {
// floating point number or ratio (numerator[:/]denominator)
.name = "Float",
.flags = M_OPT_TYPE_USES_RANGE,
.size = sizeof(float),
.parse = parse_float,
.print = print_float,
.pretty_print = print_float_f3,
.copy = copy_opt,
.add = add_float,
.multiply = multiply_float,
.set = float_set,
.get = float_get,
.equal = float_equal,
};
///////////// String
#undef VAL
#define VAL(x) (*(char **)(x))
static int parse_str(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (dst) {
talloc_free(VAL(dst));
VAL(dst) = bstrdup0(NULL, param);
}
return 0;
}
static char *print_str(const m_option_t *opt, const void *val)
{
return talloc_strdup(NULL, VAL(val) ? VAL(val) : "");
}
static void copy_str(const m_option_t *opt, void *dst, const void *src)
{
if (dst && src) {
talloc_free(VAL(dst));
VAL(dst) = talloc_strdup(NULL, VAL(src));
}
}
static int str_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
if (src->format != MPV_FORMAT_STRING)
return M_OPT_UNKNOWN;
char *s = src->u.string;
int r = s ? 0 : M_OPT_INVALID;
if (r >= 0)
copy_str(opt, dst, &s);
return r;
}
static int str_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_STRING;
dst->u.string = talloc_strdup(ta_parent, VAL(src) ? VAL(src) : "");
return 1;
}
static bool str_equal(const m_option_t *opt, void *a, void *b)
{
return bstr_equals(bstr0(VAL(a)), bstr0(VAL(b)));
}
static void free_str(void *src)
{
if (src && VAL(src)) {
talloc_free(VAL(src));
VAL(src) = NULL;
}
}
const m_option_type_t m_option_type_string = {
.name = "String",
.size = sizeof(char *),
.parse = parse_str,
.print = print_str,
.copy = copy_str,
.free = free_str,
.set = str_set,
.get = str_get,
.equal = str_equal,
};
//////////// String list
#undef VAL
#define VAL(x) (*(char ***)(x))
#define OP_NONE 0
#define OP_ADD 1
#define OP_PRE 2
#define OP_DEL 3
#define OP_CLR 4
#define OP_TOGGLE 5
#define OP_APPEND 6
#define OP_REMOVE 7
static void free_str_list(void *dst)
{
char **d;
int i;
if (!dst || !VAL(dst))
return;
d = VAL(dst);
for (i = 0; d[i] != NULL; i++)
talloc_free(d[i]);
talloc_free(d);
VAL(dst) = NULL;
}
static int str_list_add(char **add, int n, void *dst, int pre)
{
char **lst = VAL(dst);
int ln;
for (ln = 0; lst && lst[ln]; ln++)
/**/;
lst = talloc_realloc(NULL, lst, char *, n + ln + 1);
if (pre) {
memmove(&lst[n], lst, ln * sizeof(char *));
memcpy(lst, add, n * sizeof(char *));
} else
memcpy(&lst[ln], add, n * sizeof(char *));
// (re-)add NULL-termination
lst[ln + n] = NULL;
talloc_free(add);
VAL(dst) = lst;
return 1;
}
static int str_list_del(struct mp_log *log, char **del, int n, void *dst)
{
char **lst, *ep;
int i, ln, s;
long idx;
lst = VAL(dst);
for (ln = 0; lst && lst[ln]; ln++)
/**/;
s = ln;
for (i = 0; del[i] != NULL; i++) {
idx = strtol(del[i], &ep, 0);
if (*ep) {
mp_err(log, "Invalid index: %s\n", del[i]);
talloc_free(del[i]);
continue;
}
talloc_free(del[i]);
if (idx < 0 || idx >= ln) {
mp_err(log, "Index %ld is out of range.\n", idx);
continue;
} else if (!lst[idx])
continue;
talloc_free(lst[idx]);
lst[idx] = NULL;
s--;
}
talloc_free(del);
if (s == 0) {
talloc_free(lst);
VAL(dst) = NULL;
return 1;
}
// Don't bother shrinking the list allocation
for (i = 0, n = 0; i < ln; i++) {
if (!lst[i])
continue;
lst[n] = lst[i];
n++;
}
lst[s] = NULL;
return 1;
}
static struct bstr get_nextsep(struct bstr *ptr, char sep, bool modify)
{
struct bstr str = *ptr;
struct bstr orig = str;
for (;;) {
int idx = sep ? bstrchr(str, sep) : -1;
if (idx > 0 && str.start[idx - 1] == '\\') {
if (modify) {
memmove(str.start + idx - 1, str.start + idx, str.len - idx);
str.len--;
str = bstr_cut(str, idx);
} else
str = bstr_cut(str, idx + 1);
} else {
str = bstr_cut(str, idx < 0 ? str.len : idx);
break;
}
}
*ptr = str;
return bstr_splice(orig, 0, str.start - orig.start);
}
static int find_list_bstr(char **list, bstr item)
{
for (int n = 0; list && list[n]; n++) {
if (bstr_equals0(item, list[n]))
return n;
}
return -1;
}
static int parse_str_list_impl(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst,
int default_op)
{
char **res;
int op = default_op;
bool multi = true;
if (bstr_endswith0(name, "-add")) {
op = OP_ADD;
} else if (bstr_endswith0(name, "-append")) {
op = OP_ADD;
multi = false;
} else if (bstr_endswith0(name, "-pre")) {
op = OP_PRE;
} else if (bstr_endswith0(name, "-del")) {
op = OP_DEL;
mp_warn(log, "Option %.*s: -del is deprecated! "
"Use -remove (removes by content instead of by index).\n",
BSTR_P(name));
} else if (bstr_endswith0(name, "-clr")) {
op = OP_CLR;
} else if (bstr_endswith0(name, "-set")) {
op = OP_NONE;
} else if (bstr_endswith0(name, "-toggle")) {
op = OP_TOGGLE;
} else if (bstr_endswith0(name, "-remove")) {
op = OP_REMOVE;
}
if (op == OP_TOGGLE || op == OP_REMOVE) {
if (dst) {
char **list = VAL(dst);
int index = find_list_bstr(list, param);
if (index >= 0) {
char *old = list[index];
for (int n = index; list[n]; n++)
list[n] = list[n + 1];
talloc_free(old);
return 1;
}
}
if (op == OP_REMOVE)
return 1; // ignore if not found
op = OP_ADD;
multi = false;
}
// Clear the list ??
if (op == OP_CLR) {
if (dst)
free_str_list(dst);
return 0;
}
// All other ops need a param
if (param.len == 0 && op != OP_NONE)
return M_OPT_MISSING_PARAM;
char separator = opt->priv ? *(char *)opt->priv : OPTION_LIST_SEPARATOR;
if (!multi)
separator = 0; // specially handled
int n = 0;
struct bstr str = param;
while (str.len) {
get_nextsep(&str, separator, 0);
str = bstr_cut(str, 1);
n++;
}
if (n == 0 && op != OP_NONE)
return M_OPT_INVALID;
if (!dst)
return 1;
res = talloc_array(NULL, char *, n + 2);
str = bstrdup(NULL, param);
char *ptr = str.start;
n = 0;
while (1) {
struct bstr el = get_nextsep(&str, separator, 1);
res[n] = bstrdup0(NULL, el);
n++;
if (!str.len)
break;
str = bstr_cut(str, 1);
}
res[n] = NULL;
talloc_free(ptr);
if (op != OP_NONE && n > 1) {
mp_warn(log, "Passing multiple arguments to %.*s is deprecated!\n",
BSTR_P(name));
}
switch (op) {
case OP_ADD:
return str_list_add(res, n, dst, 0);
case OP_PRE:
return str_list_add(res, n, dst, 1);
case OP_DEL:
return str_list_del(log, res, n, dst);
}
if (VAL(dst))
free_str_list(dst);
VAL(dst) = res;
if (!res[0])
free_str_list(dst);
return 1;
}
static void copy_str_list(const m_option_t *opt, void *dst, const void *src)
{
int n;
char **d, **s;
if (!(dst && src))
return;
s = VAL(src);
if (VAL(dst))
free_str_list(dst);
if (!s) {
VAL(dst) = NULL;
return;
}
for (n = 0; s[n] != NULL; n++)
/* NOTHING */;
d = talloc_array(NULL, char *, n + 1);
for (; n >= 0; n--)
d[n] = talloc_strdup(NULL, s[n]);
VAL(dst) = d;
}
static char *print_str_list(const m_option_t *opt, const void *src)
{
char **lst = NULL;
char *ret = NULL;
if (!(src && VAL(src)))
return talloc_strdup(NULL, "");
lst = VAL(src);
for (int i = 0; lst[i]; i++) {
if (ret)
ret = talloc_strdup_append_buffer(ret, ",");
ret = talloc_strdup_append_buffer(ret, lst[i]);
}
return ret;
}
static int str_list_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
if (src->format != MPV_FORMAT_NODE_ARRAY)
return M_OPT_UNKNOWN;
struct mpv_node_list *srclist = src->u.list;
for (int n = 0; n < srclist->num; n++) {
if (srclist->values[n].format != MPV_FORMAT_STRING)
return M_OPT_INVALID;
}
free_str_list(dst);
if (srclist->num > 0) {
VAL(dst) = talloc_array(NULL, char*, srclist->num + 1);
for (int n = 0; n < srclist->num; n++)
VAL(dst)[n] = talloc_strdup(NULL, srclist->values[n].u.string);
VAL(dst)[srclist->num] = NULL;
}
return 1;
}
static int str_list_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_NODE_ARRAY;
dst->u.list = talloc_zero(ta_parent, struct mpv_node_list);
struct mpv_node_list *list = dst->u.list;
for (int n = 0; VAL(src) && VAL(src)[n]; n++) {
struct mpv_node node;
node.format = MPV_FORMAT_STRING;
node.u.string = talloc_strdup(list, VAL(src)[n]);
MP_TARRAY_APPEND(list, list->values, list->num, node);
}
return 1;
}
static int parse_str_list(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
return parse_str_list_impl(log, opt, name, param, dst, OP_NONE);
}
static bool str_list_equal(const m_option_t *opt, void *a, void *b)
{
char **la = VAL(a);
char **lb = VAL(b);
bool a_empty = !la || !la[0];
bool b_empty = !lb || !lb[0];
if (a_empty || b_empty)
return a_empty == b_empty;
for (int n = 0; la[n] || lb[n]; n++) {
if (!la[n] || !lb[n])
return false;
if (strcmp(la[n], lb[n]) != 0)
return false;
}
return true;
}
const m_option_type_t m_option_type_string_list = {
.name = "String list",
.size = sizeof(char **),
.parse = parse_str_list,
.print = print_str_list,
.copy = copy_str_list,
.free = free_str_list,
.get = str_list_get,
.set = str_list_set,
.equal = str_list_equal,
.actions = (const struct m_option_action[]){
{"add"},
{"append"},
{"clr", M_OPT_TYPE_OPTIONAL_PARAM},
{"del"},
{"pre"},
{"set"},
{"toggle"},
{"remove"},
{0}
},
};
static int read_subparam(struct mp_log *log, bstr optname, char *termset,
bstr *str, bstr *out_subparam);
static int keyvalue_list_find_key(char **lst, bstr str)
{
for (int n = 0; lst && lst[n] && lst[n + 1]; n += 2) {
if (bstr_equals0(str, lst[n]))
return n / 2;
}
return -1;
}
static void keyvalue_list_del_key(char **lst, int index)
{
int count = 0;
for (int n = 0; lst && lst[n]; n++)
count++;
assert(index * 2 + 1 < count);
count += 1; // terminating item
talloc_free(lst[index * 2 + 0]);
talloc_free(lst[index * 2 + 1]);
MP_TARRAY_REMOVE_AT(lst, count, index * 2 + 1);
MP_TARRAY_REMOVE_AT(lst, count, index * 2 + 0);
}
static int parse_keyvalue_list(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
char **lst = NULL;
int num = 0;
int r = 0;
bool append = false;
bool full_value = false;
if ((opt->flags & M_OPT_HAVE_HELP) && bstr_equals0(param, "help"))
param = bstr0("help=");
if (bstr_endswith0(name, "-add")) {
append = true;
} else if (bstr_endswith0(name, "-append")) {
append = full_value = true;
} else if (bstr_endswith0(name, "-remove")) {
lst = dst ? VAL(dst) : NULL;
int index = dst ? keyvalue_list_find_key(lst, param) : -1;
if (index >= 0) {
keyvalue_list_del_key(lst, index);
VAL(dst) = lst;
}
return 1;
}
if (append && dst) {
lst = VAL(dst);
for (int n = 0; lst && lst[n]; n++)
num++;
}
while (param.len) {
bstr key, val;
r = read_subparam(log, name, "=", &param, &key);
if (r < 0)
break;
if (!bstr_eatstart0(&param, "=")) {
mp_err(log, "Expected '=' and a value.\n");
r = M_OPT_INVALID;
break;
}
if (full_value) {
val = param;
param.len = 0;
} else {
r = read_subparam(log, name, ",", &param, &val);
if (r < 0)
break;
}
if (dst) {
int index = keyvalue_list_find_key(lst, key);
if (index >= 0) {
keyvalue_list_del_key(lst, index);
num -= 2;
}
MP_TARRAY_APPEND(NULL, lst, num, bstrto0(NULL, key));
MP_TARRAY_APPEND(NULL, lst, num, bstrto0(NULL, val));
MP_TARRAY_APPEND(NULL, lst, num, NULL);
num -= 1;
}
if (!bstr_eatstart0(&param, ",") && !bstr_eatstart0(&param, ":"))
break;
if (append) {
mp_warn(log, "Passing more than 1 argument to %.*s is deprecated!\n",
BSTR_P(name));
}
}
if (param.len) {
mp_err(log, "Unparsable garbage at end of option value: '%.*s'\n",
BSTR_P(param));
r = M_OPT_INVALID;
}
if (dst) {
if (!append)
free_str_list(dst);
VAL(dst) = lst;
if (r < 0)
free_str_list(dst);
} else {
free_str_list(&lst);
}
return r;
}
static char *print_keyvalue_list(const m_option_t *opt, const void *src)
{
char **lst = VAL(src);
char *ret = talloc_strdup(NULL, "");
for (int n = 0; lst && lst[n] && lst[n + 1]; n += 2) {
if (ret[0])
ret = talloc_strdup_append(ret, ",");
ret = talloc_asprintf_append(ret, "%s=%s", lst[n], lst[n + 1]);
}
return ret;
}
static int keyvalue_list_set(const m_option_t *opt, void *dst,
struct mpv_node *src)
{
if (src->format != MPV_FORMAT_NODE_MAP)
return M_OPT_UNKNOWN;
struct mpv_node_list *srclist = src->u.list;
for (int n = 0; n < srclist->num; n++) {
if (srclist->values[n].format != MPV_FORMAT_STRING)
return M_OPT_INVALID;
}
free_str_list(dst);
if (srclist->num > 0) {
VAL(dst) = talloc_array(NULL, char*, (srclist->num + 1) * 2);
for (int n = 0; n < srclist->num; n++) {
VAL(dst)[n * 2 + 0] = talloc_strdup(NULL, srclist->keys[n]);
VAL(dst)[n * 2 + 1] = talloc_strdup(NULL, srclist->values[n].u.string);
}
VAL(dst)[srclist->num * 2 + 0] = NULL;
VAL(dst)[srclist->num * 2 + 1] = NULL;
}
return 1;
}
static int keyvalue_list_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
dst->format = MPV_FORMAT_NODE_MAP;
dst->u.list = talloc_zero(ta_parent, struct mpv_node_list);
struct mpv_node_list *list = dst->u.list;
for (int n = 0; VAL(src) && VAL(src)[n * 2 + 0]; n++) {
MP_TARRAY_GROW(list, list->values, list->num);
MP_TARRAY_GROW(list, list->keys, list->num);
list->keys[list->num] = talloc_strdup(list, VAL(src)[n * 2 + 0]);
list->values[list->num] = (struct mpv_node){
.format = MPV_FORMAT_STRING,
.u.string = talloc_strdup(list, VAL(src)[n * 2 + 1]),
};
list->num++;
}
return 1;
}
const m_option_type_t m_option_type_keyvalue_list = {
.name = "Key/value list",
.size = sizeof(char **),
.parse = parse_keyvalue_list,
.print = print_keyvalue_list,
.copy = copy_str_list,
.free = free_str_list,
.get = keyvalue_list_get,
.set = keyvalue_list_set,
.equal = str_list_equal,
.actions = (const struct m_option_action[]){
{"add"},
{"append"},
{"set"},
{"remove"},
{0}
},
};
#undef VAL
#define VAL(x) (*(char **)(x))
static int check_msg_levels(struct mp_log *log, char **list)
{
for (int n = 0; list && list[n * 2 + 0]; n++) {
char *level = list[n * 2 + 1];
if (mp_msg_find_level(level) < 0 && strcmp(level, "no") != 0) {
mp_err(log, "Invalid message level '%s'\n", level);
return M_OPT_INVALID;
}
}
return 1;
}
static int parse_msglevels(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (bstr_equals0(param, "help")) {
mp_info(log, "Syntax:\n\n --msg-level=module1=level,module2=level,...\n\n"
"'module' is output prefix as shown with -v, or a prefix\n"
"of it. level is one of:\n\n"
" fatal error warn info status v debug trace\n\n"
"The level specifies the minimum log level a message\n"
"must have to be printed.\n"
"The special module name 'all' affects all modules.\n");
return M_OPT_EXIT;
}
char **dst_copy = NULL;
int r = m_option_type_keyvalue_list.parse(log, opt, name, param, &dst_copy);
if (r >= 0)
r = check_msg_levels(log, dst_copy);
if (r >= 0)
m_option_type_keyvalue_list.copy(opt, dst, &dst_copy);
m_option_type_keyvalue_list.free(&dst_copy);
return r;
}
static int set_msglevels(const m_option_t *opt, void *dst,
struct mpv_node *src)
{
char **dst_copy = NULL;
int r = m_option_type_keyvalue_list.set(opt, &dst_copy, src);
if (r >= 0)
r = check_msg_levels(mp_null_log, dst_copy);
if (r >= 0)
m_option_type_keyvalue_list.copy(opt, dst, &dst_copy);
m_option_type_keyvalue_list.free(&dst_copy);
return r;
}
const m_option_type_t m_option_type_msglevels = {
.name = "Output verbosity levels",
.size = sizeof(char **),
.parse = parse_msglevels,
.print = print_keyvalue_list,
.copy = copy_str_list,
.free = free_str_list,
.get = keyvalue_list_get,
.set = set_msglevels,
.equal = str_list_equal,
};
static int parse_print(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
((m_opt_print_fn) opt->priv)(log);
return M_OPT_EXIT;
}
const m_option_type_t m_option_type_print_fn = {
.name = "Print",
.flags = M_OPT_TYPE_OPTIONAL_PARAM,
.parse = parse_print,
};
static int parse_dummy_flag(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len) {
mp_err(log, "Invalid parameter for %.*s flag: %.*s\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_DISALLOW_PARAM;
}
return 0;
}
const m_option_type_t m_option_type_dummy_flag = {
// can only be activated
.name = "Flag",
.flags = M_OPT_TYPE_OPTIONAL_PARAM,
.parse = parse_dummy_flag,
};
#undef VAL
// Read s sub-option name, or a positional sub-opt value.
// termset is a string containing the set of chars that terminate an option.
// Return 0 on success, M_OPT_ error code otherwise.
// optname is for error reporting.
static int read_subparam(struct mp_log *log, bstr optname, char *termset,
bstr *str, bstr *out_subparam)
{
bstr p = *str;
bstr subparam = {0};
if (bstr_eatstart0(&p, "\"")) {
int optlen = bstrcspn(p, "\"");
subparam = bstr_splice(p, 0, optlen);
p = bstr_cut(p, optlen);
if (!bstr_startswith0(p, "\"")) {
mp_err(log, "Terminating '\"' missing for '%.*s'\n",
BSTR_P(optname));
return M_OPT_INVALID;
}
p = bstr_cut(p, 1);
} else if (bstr_eatstart0(&p, "[")) {
bstr s = p;
int balance = 1;
while (p.len && balance > 0) {
if (p.start[0] == '[') {
balance++;
} else if (p.start[0] == ']') {
balance--;
}
p = bstr_cut(p, 1);
}
if (balance != 0) {
mp_err(log, "Terminating ']' missing for '%.*s'\n",
BSTR_P(optname));
return M_OPT_INVALID;
}
subparam = bstr_splice(s, 0, s.len - p.len - 1);
} else if (bstr_eatstart0(&p, "%")) {
int optlen = bstrtoll(p, &p, 0);
if (!bstr_startswith0(p, "%") || (optlen > p.len - 1)) {
mp_err(log, "Invalid length %d for '%.*s'\n",
optlen, BSTR_P(optname));
return M_OPT_INVALID;
}
subparam = bstr_splice(p, 1, optlen + 1);
p = bstr_cut(p, optlen + 1);
} else {
// Skip until the next character that could possibly be a meta
// character in option parsing.
int optlen = bstrcspn(p, termset);
subparam = bstr_splice(p, 0, optlen);
p = bstr_cut(p, optlen);
}
*str = p;
*out_subparam = subparam;
return 0;
}
// Return 0 on success, otherwise error code
// On success, set *out_name and *out_val, and advance *str
// out_val.start is NULL if there was no parameter.
// optname is for error reporting.
static int split_subconf(struct mp_log *log, bstr optname, bstr *str,
bstr *out_name, bstr *out_val)
{
bstr p = *str;
bstr subparam = {0};
bstr subopt;
int r = read_subparam(log, optname, ":=,\\%\"'[]", &p, &subopt);
if (r < 0)
return r;
if (bstr_eatstart0(&p, "=")) {
r = read_subparam(log, subopt, ":=,\\%\"'[]", &p, &subparam);
if (r < 0)
return r;
}
*str = p;
*out_name = subopt;
*out_val = subparam;
return 0;
}
#undef VAL
// Split the string on the given split character.
// out_arr is at least max entries long.
// Return number of out_arr entries filled.
static int split_char(bstr str, unsigned char split, int max, bstr *out_arr)
{
if (max < 1)
return 0;
int count = 0;
while (1) {
int next = bstrchr(str, split);
if (next >= 0 && max - count > 1) {
out_arr[count++] = bstr_splice(str, 0, next);
str = bstr_cut(str, next + 1);
} else {
out_arr[count++] = str;
break;
}
}
return count;
}
static int parse_color(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
bool is_help = bstr_equals0(param, "help");
if (is_help)
goto exit;
bstr val = param;
struct m_color color = {0};
if (bstr_eatstart0(&val, "#")) {
// #[AA]RRGGBB
if (val.len != 6 && val.len != 8)
goto exit;
bool has_alpha = val.len == 8;
uint32_t c = bstrtoll(val, &val, 16);
if (val.len)
goto exit;
color = (struct m_color) {
(c >> 16) & 0xFF,
(c >> 8) & 0xFF,
c & 0xFF,
has_alpha ? (c >> 24) & 0xFF : 0xFF,
};
} else {
bstr comp_str[5];
int num = split_char(param, '/', 5, comp_str);
if (num < 1 || num > 4)
goto exit;
double comp[4] = {0, 0, 0, 1};
for (int n = 0; n < num; n++) {
bstr rest;
double d = bstrtod(comp_str[n], &rest);
if (rest.len || !comp_str[n].len || d < 0 || d > 1 || !isfinite(d))
goto exit;
comp[n] = d;
}
if (num == 2)
comp[3] = comp[1];
if (num < 3)
comp[2] = comp[1] = comp[0];
color = (struct m_color) { comp[0] * 0xFF, comp[1] * 0xFF,
comp[2] * 0xFF, comp[3] * 0xFF };
}
if (dst)
*((struct m_color *)dst) = color;
return 1;
exit:
if (!is_help) {
mp_err(log, "Option %.*s: invalid color: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
}
mp_info(log, "Valid colors must be in the form #RRGGBB or #AARRGGBB (in hex)\n"
"or in the form 'r/g/b/a', where each component is a value in the\n"
"range 0.0-1.0. (Also allowed: 'gray', 'gray/a', 'r/g/b').\n");
return is_help ? M_OPT_EXIT : M_OPT_INVALID;
}
static char *print_color(const m_option_t *opt, const void *val)
{
const struct m_color *c = val;
return talloc_asprintf(NULL, "#%02X%02X%02X%02X", c->a, c->r, c->g, c->b);
}
static bool color_equal(const m_option_t *opt, void *a, void *b)
{
struct m_color *ca = a;
struct m_color *cb = b;
return ca->a == cb->a && ca->r == cb->r && ca->g == cb->g && ca->b == cb->b;
}
const m_option_type_t m_option_type_color = {
.name = "Color",
.size = sizeof(struct m_color),
.parse = parse_color,
.print = print_color,
.copy = copy_opt,
.equal = color_equal,
};
// Parse a >=0 number starting at s. Set s to the string following the number.
// If the number ends with '%', eat that and set *out_per to true, but only
// if the number is between 0-100; if not, don't eat anything, even the number.
static bool eat_num_per(bstr *s, int *out_num, bool *out_per)
{
bstr rest;
long long v = bstrtoll(*s, &rest, 10);
if (s->len == rest.len || v < INT_MIN || v > INT_MAX)
return false;
*out_num = v;
*out_per = false;
*s = rest;
if (bstr_eatstart0(&rest, "%") && v >= 0 && v <= 100) {
*out_per = true;
*s = rest;
}
return true;
}
static bool parse_geometry_str(struct m_geometry *gm, bstr s)
{
*gm = (struct m_geometry) { .x = INT_MIN, .y = INT_MIN };
if (s.len == 0)
return true;
// Approximate grammar:
// [[W][xH]][{+-}X{+-}Y][/WS] | [X:Y]
// (meaning: [optional] {one character of} one|alternative)
// Every number can be followed by '%'
int num;
bool per;
#define READ_NUM(F, F_PER) do { \
if (!eat_num_per(&s, &num, &per)) \
goto error; \
gm->F = num; \
gm->F_PER = per; \
} while(0)
#define READ_SIGN(F) do { \
if (bstr_eatstart0(&s, "+")) { \
gm->F = false; \
} else if (bstr_eatstart0(&s, "-")) {\
gm->F = true; \
} else goto error; \
} while(0)
if (bstrchr(s, ':') < 0) {
gm->wh_valid = true;
if (!bstr_startswith0(s, "+") && !bstr_startswith0(s, "-")) {
if (!bstr_startswith0(s, "x"))
READ_NUM(w, w_per);
if (bstr_eatstart0(&s, "x"))
READ_NUM(h, h_per);
}
if (s.len > 0) {
gm->xy_valid = true;
READ_SIGN(x_sign);
READ_NUM(x, x_per);
READ_SIGN(y_sign);
READ_NUM(y, y_per);
}
if (bstr_eatstart0(&s, "/")) {
bstr rest;
long long v = bstrtoll(s, &rest, 10);
if (s.len == rest.len || v < 1 || v > INT_MAX)
goto error;
s = rest;
gm->ws = v;
}
} else {
gm->xy_valid = true;
READ_NUM(x, x_per);
if (!bstr_eatstart0(&s, ":"))
goto error;
READ_NUM(y, y_per);
}
return s.len == 0;
error:
return false;
}
#undef READ_NUM
#undef READ_SIGN
#define APPEND_PER(F, F_PER) \
res = talloc_asprintf_append(res, "%d%s", gm->F, gm->F_PER ? "%" : "")
static char *print_geometry(const m_option_t *opt, const void *val)
{
const struct m_geometry *gm = val;
char *res = talloc_strdup(NULL, "");
if (gm->wh_valid || gm->xy_valid) {
if (gm->wh_valid) {
APPEND_PER(w, w_per);
res = talloc_asprintf_append(res, "x");
APPEND_PER(h, h_per);
}
if (gm->xy_valid) {
res = talloc_asprintf_append(res, gm->x_sign ? "-" : "+");
APPEND_PER(x, x_per);
res = talloc_asprintf_append(res, gm->y_sign ? "-" : "+");
APPEND_PER(y, y_per);
}
if (gm->ws > 0)
res = talloc_asprintf_append(res, "/%d", gm->ws);
}
return res;
}
#undef APPEND_PER
// xpos,ypos: position of the left upper corner
// widw,widh: width and height of the window
// scrw,scrh: width and height of the current screen
// The input parameters should be set to a centered window (default fallbacks).
void m_geometry_apply(int *xpos, int *ypos, int *widw, int *widh,
int scrw, int scrh, struct m_geometry *gm)
{
if (gm->wh_valid) {
int prew = *widw, preh = *widh;
if (gm->w > 0)
*widw = gm->w_per ? scrw * (gm->w / 100.0) : gm->w;
if (gm->h > 0)
*widh = gm->h_per ? scrh * (gm->h / 100.0) : gm->h;
// keep aspect if the other value is not set
double asp = (double)prew / preh;
if (gm->w > 0 && !(gm->h > 0)) {
*widh = *widw / asp;
} else if (!(gm->w > 0) && gm->h > 0) {
*widw = *widh * asp;
}
// Center window after resize. If valid x:y values are passed to
// geometry, then those values will be overridden.
*xpos += prew / 2 - *widw / 2;
*ypos += preh / 2 - *widh / 2;
}
if (gm->xy_valid) {
if (gm->x != INT_MIN) {
*xpos = gm->x;
if (gm->x_per)
*xpos = (scrw - *widw) * (*xpos / 100.0);
if (gm->x_sign)
*xpos = scrw - *widw - *xpos;
}
if (gm->y != INT_MIN) {
*ypos = gm->y;
if (gm->y_per)
*ypos = (scrh - *widh) * (*ypos / 100.0);
if (gm->y_sign)
*ypos = scrh - *widh - *ypos;
}
}
}
static int parse_geometry(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
bool is_help = bstr_equals0(param, "help");
if (is_help)
goto exit;
struct m_geometry gm;
if (!parse_geometry_str(&gm, param))
goto exit;
if (dst)
*((struct m_geometry *)dst) = gm;
return 1;
exit:
if (!is_help) {
mp_err(log, "Option %.*s: invalid geometry: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
}
mp_info(log,
"Valid format: [W[%%][xH[%%]]][{+-}X[%%]{+-}Y[%%]] | [X[%%]:Y[%%]]\n");
return is_help ? M_OPT_EXIT : M_OPT_INVALID;
}
static bool geometry_equal(const m_option_t *opt, void *a, void *b)
{
struct m_geometry *ga = a;
struct m_geometry *gb = b;
return ga->x == gb->x && ga->y == gb->y && ga->w == gb->w && ga->h == gb->h &&
ga->xy_valid == gb->xy_valid && ga->wh_valid == gb->wh_valid &&
ga->w_per == gb->w_per && ga->h_per == gb->h_per &&
ga->x_per == gb->x_per && ga->y_per == gb->y_per &&
ga->x_sign == gb->x_sign && ga->y_sign == gb->y_sign &&
ga->ws == gb->ws;
}
const m_option_type_t m_option_type_geometry = {
.name = "Window geometry",
.size = sizeof(struct m_geometry),
.parse = parse_geometry,
.print = print_geometry,
.copy = copy_opt,
.equal = geometry_equal,
};
static int parse_size_box(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
bool is_help = bstr_equals0(param, "help");
if (is_help)
goto exit;
struct m_geometry gm;
if (!parse_geometry_str(&gm, param))
goto exit;
if (gm.xy_valid)
goto exit;
if (dst)
*((struct m_geometry *)dst) = gm;
return 1;
exit:
if (!is_help) {
mp_err(log, "Option %.*s: invalid size: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
}
mp_info(log, "Valid format: W[%%][xH[%%]] or empty string\n");
return is_help ? M_OPT_EXIT : M_OPT_INVALID;
}
const m_option_type_t m_option_type_size_box = {
.name = "Window size",
.size = sizeof(struct m_geometry),
.parse = parse_size_box,
.print = print_geometry,
.copy = copy_opt,
.equal = geometry_equal,
};
void m_rect_apply(struct mp_rect *rc, int w, int h, struct m_geometry *gm)
{
*rc = (struct mp_rect){0, 0, w, h};
if (!w || !h)
return;
m_geometry_apply(&rc->x0, &rc->y0, &rc->x1, &rc->y1, w, h, gm);
if (!gm->xy_valid && gm->wh_valid && rc->x1 == 0 && rc->y1 == 0)
return;
if (!gm->wh_valid || rc->x1 == 0 || rc->x1 == INT_MIN)
rc->x1 = w - rc->x0;
if (!gm->wh_valid || rc->y1 == 0 || rc->y1 == INT_MIN)
rc->y1 = h - rc->y0;
if (gm->wh_valid && (gm->w || gm->h))
rc->x1 += rc->x0;
if (gm->wh_valid && (gm->w || gm->h))
rc->y1 += rc->y0;
}
static int parse_rect(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
bool is_help = bstr_equals0(param, "help");
if (is_help)
goto exit;
struct m_geometry gm;
if (!parse_geometry_str(&gm, param))
goto exit;
bool invalid = gm.x_sign || gm.y_sign || gm.ws;
invalid |= gm.wh_valid && (gm.w < 0 || gm.h < 0);
invalid |= gm.wh_valid && !gm.xy_valid && gm.w <= 0 && gm.h <= 0;
if (invalid)
goto exit;
if (dst)
*((struct m_geometry *)dst) = gm;
return 1;
exit:
if (!is_help) {
mp_err(log, "Option %.*s: invalid rect: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
}
mp_info(log, "Valid format: W[%%][xH[%%]][+x+y]\n");
return is_help ? M_OPT_EXIT : M_OPT_INVALID;
}
const m_option_type_t m_option_type_rect = {
.name = "Video rect",
.size = sizeof(struct m_geometry),
.parse = parse_rect,
.print = print_geometry,
.copy = copy_opt,
.equal = geometry_equal,
};
#include "video/img_format.h"
static int parse_imgfmt(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
if (!bstrcmp0(param, "help")) {
mp_info(log, "Available formats:");
char **list = mp_imgfmt_name_list();
for (int i = 0; list[i]; i++)
mp_info(log, " %s", list[i]);
mp_info(log, " no");
mp_info(log, "\n");
talloc_free(list);
return M_OPT_EXIT;
}
unsigned int fmt = mp_imgfmt_from_name(param);
if (!fmt && !bstr_equals0(param, "no")) {
mp_err(log, "Option %.*s: unknown format name: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
if (dst)
*((int *)dst) = fmt;
return 1;
}
static char *print_imgfmt(const m_option_t *opt, const void *val)
{
int fmt = *(int *)val;
return talloc_strdup(NULL, fmt ? mp_imgfmt_to_name(fmt) : "no");
}
const m_option_type_t m_option_type_imgfmt = {
.name = "Image format",
.size = sizeof(int),
.parse = parse_imgfmt,
.print = print_imgfmt,
.copy = copy_opt,
.equal = int_equal,
};
static int parse_fourcc(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
unsigned int value;
if (param.len == 4) {
uint8_t *s = param.start;
value = s[0] | (s[1] << 8) | (s[2] << 16) | (s[3] << 24);
} else {
bstr rest;
value = bstrtoll(param, &rest, 16);
if (rest.len != 0) {
mp_err(log, "Option %.*s: invalid FourCC: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
}
if (dst)
*((unsigned int *)dst) = value;
return 1;
}
static char *print_fourcc(const m_option_t *opt, const void *val)
{
unsigned int fourcc = *(unsigned int *)val;
return talloc_asprintf(NULL, "%08x", fourcc);
}
const m_option_type_t m_option_type_fourcc = {
.name = "FourCC",
.size = sizeof(unsigned int),
.parse = parse_fourcc,
.print = print_fourcc,
.copy = copy_opt,
.equal = int_equal,
};
#include "audio/format.h"
static int parse_afmt(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
if (!bstrcmp0(param, "help")) {
mp_info(log, "Available formats:");
for (int i = 1; i < AF_FORMAT_COUNT; i++)
mp_info(log, " %s", af_fmt_to_str(i));
mp_info(log, "\n");
return M_OPT_EXIT;
}
int fmt = 0;
for (int i = 1; i < AF_FORMAT_COUNT; i++) {
if (bstr_equals0(param, af_fmt_to_str(i)))
fmt = i;
}
if (!fmt) {
mp_err(log, "Option %.*s: unknown format name: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
if (dst)
*((int *)dst) = fmt;
return 1;
}
static char *print_afmt(const m_option_t *opt, const void *val)
{
int fmt = *(int *)val;
return talloc_strdup(NULL, fmt ? af_fmt_to_str(fmt) : "no");
}
const m_option_type_t m_option_type_afmt = {
.name = "Audio format",
.size = sizeof(int),
.parse = parse_afmt,
.print = print_afmt,
.copy = copy_opt,
.equal = int_equal,
};
#include "audio/chmap.h"
static int parse_channels(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
bool limited = opt->flags & M_OPT_CHANNELS_LIMITED;
struct m_channels res = {0};
if (bstr_equals0(param, "help")) {
mp_chmap_print_help(log);
if (!limited) {
mp_info(log, "\nOther values:\n"
" auto-safe\n");
}
return M_OPT_EXIT;
}
bool auto_safe = bstr_equals0(param, "auto-safe");
if (bstr_equals0(param, "auto") || bstr_equals0(param, "empty") || auto_safe) {
if (limited) {
mp_err(log, "Disallowed parameter.\n");
return M_OPT_INVALID;
}
param.len = 0;
res.set = true;
res.auto_safe = auto_safe;
}
while (param.len) {
bstr item;
if (limited) {
item = param;
param.len = 0;
} else {
bstr_split_tok(param, ",", &item, &param);
}
struct mp_chmap map = {0};
if (!mp_chmap_from_str(&map, item) || !mp_chmap_is_valid(&map)) {
mp_err(log, "Invalid channel layout: %.*s\n", BSTR_P(item));
talloc_free(res.chmaps);
return M_OPT_INVALID;
}
MP_TARRAY_APPEND(NULL, res.chmaps, res.num_chmaps, map);
res.set = true;
}
if (dst) {
*(struct m_channels *)dst = res;
} else {
talloc_free(res.chmaps);
}
return 1;
}
static char *print_channels(const m_option_t *opt, const void *val)
{
const struct m_channels *ch = val;
if (!ch->set)
return talloc_strdup(NULL, "");
if (ch->auto_safe)
return talloc_strdup(NULL, "auto-safe");
if (ch->num_chmaps > 0) {
char *res = talloc_strdup(NULL, "");
for (int n = 0; n < ch->num_chmaps; n++) {
if (n > 0)
res = talloc_strdup_append(res, ",");
res = talloc_strdup_append(res, mp_chmap_to_str(&ch->chmaps[n]));
}
return res;
}
return talloc_strdup(NULL, "auto");
}
static void free_channels(void *src)
{
if (!src)
return;
struct m_channels *ch = src;
talloc_free(ch->chmaps);
*ch = (struct m_channels){0};
}
static void copy_channels(const m_option_t *opt, void *dst, const void *src)
{
if (!(dst && src))
return;
struct m_channels *ch = dst;
free_channels(dst);
*ch = *(struct m_channels *)src;
ch->chmaps =
talloc_memdup(NULL, ch->chmaps, sizeof(ch->chmaps[0]) * ch->num_chmaps);
}
static bool channels_equal(const m_option_t *opt, void *a, void *b)
{
struct m_channels *ca = a;
struct m_channels *cb = b;
if (ca->set != cb->set ||
ca->auto_safe != cb->auto_safe ||
ca->num_chmaps != cb->num_chmaps)
return false;
for (int n = 0; n < ca->num_chmaps; n++) {
if (!mp_chmap_equals(&ca->chmaps[n], &cb->chmaps[n]))
return false;
}
return true;
}
const m_option_type_t m_option_type_channels = {
.name = "Audio channels or channel map",
.size = sizeof(struct m_channels),
.parse = parse_channels,
.print = print_channels,
.copy = copy_channels,
.free = free_channels,
.equal = channels_equal,
};
static int parse_timestring(struct bstr str, double *time, char endchar)
{
int h, m, len;
double s;
*time = 0; /* ensure initialization for error cases */
bool neg = bstr_eatstart0(&str, "-");
if (!neg)
bstr_eatstart0(&str, "+");
if (bstrchr(str, '-') >= 0 || bstrchr(str, '+') >= 0)
return 0; /* the timestamp shouldn't contain anymore +/- after this point */
if (bstr_sscanf(str, "%d:%d:%lf%n", &h, &m, &s, &len) >= 3) {
if (m >= 60 || s >= 60)
return 0; /* minutes or seconds are out of range */
*time = 3600 * h + 60 * m + s;
} else if (bstr_sscanf(str, "%d:%lf%n", &m, &s, &len) >= 2) {
if (s >= 60)
return 0; /* seconds are out of range */
*time = 60 * m + s;
} else if (bstr_sscanf(str, "%lf%n", &s, &len) >= 1) {
*time = s;
} else {
return 0; /* unsupported time format */
}
if (len < str.len && str.start[len] != endchar)
return 0; /* invalid extra characters at the end */
if (!isfinite(*time))
return 0;
if (neg)
*time = -*time;
return len;
}
#define HAS_NOPTS(opt) ((opt)->flags & M_OPT_ALLOW_NO)
static int parse_time(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
if (param.len == 0)
return M_OPT_MISSING_PARAM;
double time = MP_NOPTS_VALUE;
if (HAS_NOPTS(opt) && bstr_equals0(param, "no")) {
// nothing
} else if (!parse_timestring(param, &time, 0)) {
mp_err(log, "Option %.*s: invalid time: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
}
if (dst)
*(double *)dst = time;
return 1;
}
static char *print_time(const m_option_t *opt, const void *val)
{
double pts = *(double *)val;
if (pts == MP_NOPTS_VALUE && HAS_NOPTS(opt))
return talloc_strdup(NULL, "no"); // symmetry with parsing
return talloc_asprintf(NULL, "%f", pts);
}
static char *pretty_print_time(const m_option_t *opt, const void *val)
{
double pts = *(double *)val;
if (pts == MP_NOPTS_VALUE && HAS_NOPTS(opt))
return talloc_strdup(NULL, "no"); // symmetry with parsing
return mp_format_time(pts, false);
}
static int time_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
if (HAS_NOPTS(opt) && src->format == MPV_FORMAT_STRING) {
if (strcmp(src->u.string, "no") == 0) {
*(double *)dst = MP_NOPTS_VALUE;
return 1;
}
}
return double_set(opt, dst, src);
}
static int time_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
if (HAS_NOPTS(opt) && *(double *)src == MP_NOPTS_VALUE) {
dst->format = MPV_FORMAT_STRING;
dst->u.string = talloc_strdup(ta_parent, "no");
return 1;
}
return double_get(opt, ta_parent, dst, src);
}
const m_option_type_t m_option_type_time = {
.name = "Time",
.size = sizeof(double),
.parse = parse_time,
.print = print_time,
.pretty_print = pretty_print_time,
.copy = copy_opt,
.add = add_double,
.set = time_set,
.get = time_get,
.equal = double_equal,
};
// Relative time
static int parse_rel_time(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
struct m_rel_time t = {0};
if (param.len == 0)
return M_OPT_MISSING_PARAM;
if (bstr_equals0(param, "none")) {
t.type = REL_TIME_NONE;
goto out;
}
// Percent pos
if (bstr_endswith0(param, "%")) {
double percent = bstrtod(bstr_splice(param, 0, -1), &param);
if (param.len == 0 && percent >= 0 && percent <= 100) {
t.type = REL_TIME_PERCENT;
t.pos = percent;
goto out;
}
}
// Chapter pos
if (bstr_startswith0(param, "#")) {
int chapter = bstrtoll(bstr_cut(param, 1), &param, 10);
if (param.len == 0 && chapter >= 1) {
t.type = REL_TIME_CHAPTER;
t.pos = chapter - 1;
goto out;
}
}
double time;
if (parse_timestring(param, &time, 0)) {
if (bstr_startswith0(param, "+") || bstr_startswith0(param, "-")) {
t.type = REL_TIME_RELATIVE;
} else {
t.type = REL_TIME_ABSOLUTE;
}
t.pos = time;
goto out;
}
mp_err(log, "Option %.*s: invalid time or position: '%.*s'\n",
BSTR_P(name), BSTR_P(param));
return M_OPT_INVALID;
out:
if (dst)
*(struct m_rel_time *)dst = t;
return 1;
}
static char *print_rel_time(const m_option_t *opt, const void *val)
{
const struct m_rel_time *t = val;
switch(t->type) {
case REL_TIME_ABSOLUTE:
return talloc_asprintf(NULL, "%g", t->pos);
case REL_TIME_RELATIVE:
return talloc_asprintf(NULL, "%s%g",
(t->pos >= 0) ? "+" : "-", fabs(t->pos));
case REL_TIME_CHAPTER:
return talloc_asprintf(NULL, "#%g", t->pos);
case REL_TIME_PERCENT:
return talloc_asprintf(NULL, "%g%%", t->pos);
}
return talloc_strdup(NULL, "none");
}
static bool rel_time_equal(const m_option_t *opt, void *a, void *b)
{
struct m_rel_time *ta = a;
struct m_rel_time *tb = b;
return ta->type == tb->type && ta->pos == tb->pos;
}
const m_option_type_t m_option_type_rel_time = {
.name = "Relative time or percent position",
.size = sizeof(struct m_rel_time),
.parse = parse_rel_time,
.print = print_rel_time,
.copy = copy_opt,
.equal = rel_time_equal,
};
//// Objects (i.e. filters, etc) settings
#undef VAL
#define VAL(x) (*(m_obj_settings_t **)(x))
bool m_obj_list_find(struct m_obj_desc *dst, const struct m_obj_list *l,
bstr name)
{
for (int i = 0; ; i++) {
if (!l->get_desc(dst, i))
break;
if (bstr_equals0(name, dst->name))
return true;
}
for (int i = 0; l->aliases[i][0]; i++) {
const char *aname = l->aliases[i][0];
const char *alias = l->aliases[i][1];
if (bstr_equals0(name, aname) && m_obj_list_find(dst, l, bstr0(alias)))
{
dst->replaced_name = aname;
return true;
}
}
return false;
}
static void obj_setting_free(m_obj_settings_t *item)
{
talloc_free(item->name);
talloc_free(item->label);
free_str_list(&(item->attribs));
}
// If at least one item has a label, compare labels only - otherwise ignore them.
static bool obj_setting_match(m_obj_settings_t *a, m_obj_settings_t *b)
{
bstr la = bstr0(a->label), lb = bstr0(b->label);
if (la.len || lb.len)
return bstr_equals(la, lb);
return m_obj_settings_equal(a, b);
}
static int obj_settings_list_num_items(m_obj_settings_t *obj_list)
{
int num = 0;
while (obj_list && obj_list[num].name)
num++;
return num;
}
static void obj_settings_list_del_at(m_obj_settings_t **p_obj_list, int idx)
{
m_obj_settings_t *obj_list = *p_obj_list;
int num = obj_settings_list_num_items(obj_list);
assert(idx >= 0 && idx < num);
obj_setting_free(&obj_list[idx]);
// Note: the NULL-terminating element is moved down as part of this
memmove(&obj_list[idx], &obj_list[idx + 1],
sizeof(m_obj_settings_t) * (num - idx));
*p_obj_list = talloc_realloc(NULL, obj_list, struct m_obj_settings, num);
}
// Insert such that *p_obj_list[idx] is set to item.
// If idx < 0, set idx = count + idx + 1 (i.e. -1 inserts it as last element).
// Memory referenced by *item is not copied.
static void obj_settings_list_insert_at(m_obj_settings_t **p_obj_list, int idx,
m_obj_settings_t *item)
{
int num = obj_settings_list_num_items(*p_obj_list);
if (idx < 0)
idx = num + idx + 1;
assert(idx >= 0 && idx <= num);
*p_obj_list = talloc_realloc(NULL, *p_obj_list, struct m_obj_settings,
num + 2);
memmove(*p_obj_list + idx + 1, *p_obj_list + idx,
(num - idx) * sizeof(m_obj_settings_t));
(*p_obj_list)[idx] = *item;
(*p_obj_list)[num + 1] = (m_obj_settings_t){0};
}
static int obj_settings_list_find_by_label(m_obj_settings_t *obj_list,
bstr label)
{
for (int n = 0; obj_list && obj_list[n].name; n++) {
if (label.len && bstr_equals0(label, obj_list[n].label))
return n;
}
return -1;
}
static int obj_settings_list_find_by_label0(m_obj_settings_t *obj_list,
const char *label)
{
return obj_settings_list_find_by_label(obj_list, bstr0(label));
}
static int obj_settings_find_by_content(m_obj_settings_t *obj_list,
m_obj_settings_t *item)
{
for (int n = 0; obj_list && obj_list[n].name; n++) {
if (obj_setting_match(&obj_list[n], item))
return n;
}
return -1;
}
static void free_obj_settings_list(void *dst)
{
int n;
m_obj_settings_t *d;
if (!dst || !VAL(dst))
return;
d = VAL(dst);
for (n = 0; d[n].name; n++)
obj_setting_free(&d[n]);
talloc_free(d);
VAL(dst) = NULL;
}
static void copy_obj_settings_list(const m_option_t *opt, void *dst,
const void *src)
{
m_obj_settings_t *d, *s;
int n;
if (!(dst && src))
return;
s = VAL(src);
if (VAL(dst))
free_obj_settings_list(dst);
if (!s)
return;
for (n = 0; s[n].name; n++)
/* NOP */;
d = talloc_array(NULL, struct m_obj_settings, n + 1);
for (n = 0; s[n].name; n++) {
d[n].name = talloc_strdup(NULL, s[n].name);
d[n].label = talloc_strdup(NULL, s[n].label);
d[n].enabled = s[n].enabled;
d[n].attribs = NULL;
copy_str_list(NULL, &(d[n].attribs), &(s[n].attribs));
}
d[n].name = NULL;
d[n].label = NULL;
d[n].attribs = NULL;
VAL(dst) = d;
}
// Consider -vf a=b=c:d=e. This verifies "b"="c" and "d"="e" and that the
// option names/values are correct. Try to determine whether an option
// without '=' sets a flag, or whether it's a positional argument.
static int get_obj_param(struct mp_log *log, bstr opt_name, bstr obj_name,
struct m_config *config, bstr name, bstr val,
int flags, bool nopos,
int *nold, bstr *out_name, bstr *out_val,
char *tmp, size_t tmp_size)
{
int r;
if (!config) {
// Duplicates the logic below, but with unknown parameter types/names.
if (val.start || nopos) {
*out_name = name;
*out_val = val;
} else {
val = name;
// positional fields
if (val.len == 0) { // Empty field, count it and go on
(*nold)++;
return 0;
}
// Positional naming convention for/followed by mp_set_avopts().
snprintf(tmp, tmp_size, "@%d", *nold);
*out_name = bstr0(tmp);
*out_val = val;
(*nold)++;
}
return 1;
}
// val.start != NULL => of the form name=val (not positional)
// If it's just "name", and the associated option exists and is a flag,
// don't accept it as positional argument.
if (val.start || m_config_option_requires_param(config, name) == 0 || nopos) {
r = m_config_set_option_cli(config, name, val, flags);
if (r < 0) {
if (r == M_OPT_UNKNOWN) {
mp_err(log, "Option %.*s: %.*s doesn't have a %.*s parameter.\n",
BSTR_P(opt_name), BSTR_P(obj_name), BSTR_P(name));
return M_OPT_UNKNOWN;
}
if (r != M_OPT_EXIT)
mp_err(log, "Option %.*s: "
"Error while parsing %.*s parameter %.*s (%.*s)\n",
BSTR_P(opt_name), BSTR_P(obj_name), BSTR_P(name),
BSTR_P(val));
return r;
}
*out_name = name;
*out_val = val;
return 1;
} else {
val = name;
// positional fields
if (val.len == 0) { // Empty field, count it and go on
(*nold)++;
return 0;
}
const char *opt = m_config_get_positional_option(config, *nold);
if (!opt) {
mp_err(log, "Option %.*s: %.*s has only %d "
"params, so you can't give more than %d unnamed params.\n",
BSTR_P(opt_name), BSTR_P(obj_name), *nold, *nold);
return M_OPT_OUT_OF_RANGE;
}
r = m_config_set_option_cli(config, bstr0(opt), val, flags);
if (r < 0) {
if (r != M_OPT_EXIT)
mp_err(log, "Option %.*s: "
"Error while parsing %.*s parameter %s (%.*s)\n",
BSTR_P(opt_name), BSTR_P(obj_name), opt, BSTR_P(val));
return r;
}
*out_name = bstr0(opt);
*out_val = val;
(*nold)++;
return 1;
}
}
// Consider -vf a=b:c:d. This parses "b:c:d" into name/value pairs, stored as
// linear array in *_ret. In particular, config contains what options a the
// object takes, and verifies the option values as well.
// If config is NULL, all parameters are accepted without checking.
// _ret set to NULL can be used for checking-only.
// flags can contain any M_SETOPT_* flag.
// desc is optional.
static int m_obj_parse_sub_config(struct mp_log *log, struct bstr opt_name,
struct bstr name, struct bstr *pstr,
struct m_config *config, int flags, bool nopos,
struct m_obj_desc *desc,
const struct m_obj_list *list, char ***ret)
{
int nold = 0;
char **args = NULL;
int num_args = 0;
int r = 1;
char tmp[80];
if (ret) {
args = *ret;
while (args && args[num_args])
num_args++;
}
while (pstr->len > 0) {
bstr fname, fval;
r = split_subconf(log, opt_name, pstr, &fname, &fval);
if (r < 0)
goto exit;
if (list->use_global_options) {
mp_err(log, "Option %.*s: this option does not accept sub-options.\n",
BSTR_P(opt_name));
mp_err(log, "Sub-options for --vo and --ao were removed from mpv in "
"release 0.23.0.\nSee https://0x0.st/uM for details.\n");
r = M_OPT_INVALID;
goto exit;
}
if (bstr_equals0(fname, "help"))
goto print_help;
r = get_obj_param(log, opt_name, name, config, fname, fval, flags,
nopos, &nold, &fname, &fval, tmp, sizeof(tmp));
if (r < 0)
goto exit;
if (r > 0 && ret) {
MP_TARRAY_APPEND(NULL, args, num_args, bstrto0(NULL, fname));
MP_TARRAY_APPEND(NULL, args, num_args, bstrto0(NULL, fval));
MP_TARRAY_APPEND(NULL, args, num_args, NULL);
MP_TARRAY_APPEND(NULL, args, num_args, NULL);
num_args -= 2;
}
if (!bstr_eatstart0(pstr, ":"))
break;
}
if (ret) {
if (num_args > 0) {
*ret = args;
args = NULL;
} else {
*ret = NULL;
}
}
goto exit;
print_help: ;
if (config) {
if (desc->print_help)
desc->print_help(log);
m_config_print_option_list(config, "*");
} else if (list->print_unknown_entry_help) {
list->print_unknown_entry_help(log, mp_tprintf(80, "%.*s", BSTR_P(name)));
} else {
mp_warn(log, "Option %.*s: item %.*s doesn't exist.\n",
BSTR_P(opt_name), BSTR_P(name));
}
r = M_OPT_EXIT;
exit:
free_str_list(&args);
return r;
}
// Characters which may appear in a filter name
#define NAMECH "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-"
// Parse one item, e.g. -vf a=b:c:d,e=f:g => parse a=b:c:d into "a" and "b:c:d"
static int parse_obj_settings(struct mp_log *log, struct bstr opt, int op,
struct bstr *pstr, const struct m_obj_list *list,
m_obj_settings_t **_ret)
{
int r;
char **plist = NULL;
struct m_obj_desc desc;
bstr str = {0};
bstr label = {0};
bool nopos = list->disallow_positional_parameters;
bool enabled = true;
if (bstr_eatstart0(pstr, "@")) {
bstr rest;
if (!bstr_split_tok(*pstr, ":", &label, &rest)) {
// "@labelname" is the special enable/disable toggle syntax
if (op == OP_TOGGLE) {
int idx = bstrspn(*pstr, NAMECH);
label = bstr_splice(*pstr, 0, idx);
if (label.len) {
*pstr = bstr_cut(*pstr, idx);
goto done;
}
}
mp_err(log, "Option %.*s: ':' expected after label.\n", BSTR_P(opt));
return M_OPT_INVALID;
}
*pstr = rest;
if (label.len == 0) {
mp_err(log, "Option %.*s: label name expected.\n", BSTR_P(opt));
return M_OPT_INVALID;
}
}
if (list->allow_disable_entries && bstr_eatstart0(pstr, "!"))
enabled = false;
bool has_param = false;
int idx = bstrspn(*pstr, NAMECH);
str = bstr_splice(*pstr, 0, idx);
if (!str.len) {
mp_err(log, "Option %.*s: filter name expected.\n", BSTR_P(opt));
return M_OPT_INVALID;
}
*pstr = bstr_cut(*pstr, idx);
// video filters use "=", VOs use ":"
if (bstr_eatstart0(pstr, "=") || bstr_eatstart0(pstr, ":"))
has_param = true;
bool skip = false;
if (m_obj_list_find(&desc, list, str)) {
if (desc.replaced_name)
mp_warn(log, "Driver '%s' has been replaced with '%s'!\n",
desc.replaced_name, desc.name);
} else {
char name[80];
snprintf(name, sizeof(name), "%.*s", BSTR_P(str));
if (list->check_unknown_entry && !list->check_unknown_entry(name)) {
mp_err(log, "Option %.*s: %.*s doesn't exist.\n",
BSTR_P(opt), BSTR_P(str));
return M_OPT_INVALID;
}
desc = (struct m_obj_desc){0};
skip = true;
}
if (has_param) {
struct m_config *config = NULL;
if (!skip)
config = m_config_from_obj_desc_noalloc(NULL, log, &desc);
r = m_obj_parse_sub_config(log, opt, str, pstr, config,
M_SETOPT_CHECK_ONLY, nopos, &desc, list,
_ret ? &plist : NULL);
talloc_free(config);
if (r < 0)
return r;
}
if (!_ret)
return 1;
done: ;
m_obj_settings_t item = {
.name = bstrto0(NULL, str),
.label = bstrdup0(NULL, label),
.enabled = enabled,
.attribs = plist,
};
obj_settings_list_insert_at(_ret, -1, &item);
return 1;
}
// Parse a single entry for -vf-del (return 0 if not applicable)
// mark_del is bounded by the number of items in dst
static int parse_obj_settings_del(struct mp_log *log, struct bstr opt_name,
struct bstr *param, int op,
void *dst, bool *mark_del)
{
bstr s = *param;
if (bstr_eatstart0(&s, "@")) {
// '@name:' -> parse as normal filter entry
// '@name,' or '@name<end>' -> parse here
int idx = bstrspn(s, NAMECH);
bstr label = bstr_splice(s, 0, idx);
s = bstr_cut(s, idx);
if (bstr_startswith0(s, ":"))
return 0;
if (dst) {
int label_index = obj_settings_list_find_by_label(VAL(dst), label);
if (label_index >= 0) {
mark_del[label_index] = true;
} else {
mp_warn(log, "Option %.*s: item label @%.*s not found.\n",
BSTR_P(opt_name), BSTR_P(label));
}
}
*param = s;
return 1;
}
if (op == OP_REMOVE)
return 0;
bstr rest;
long long id = bstrtoll(s, &rest, 0);
if (rest.len == s.len)
return 0;
if (dst) {
int num = obj_settings_list_num_items(VAL(dst));
if (id < 0)
id = num + id;
if (id >= 0 && id < num) {
mark_del[id] = true;
} else {
mp_warn(log, "Option %.*s: Index %lld is out of range.\n",
BSTR_P(opt_name), id);
}
}
*param = rest;
return 1;
}
static int parse_obj_settings_list(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
m_obj_settings_t *res = NULL;
int op = OP_NONE;
bool *mark_del = NULL;
int num_items = obj_settings_list_num_items(dst ? VAL(dst) : 0);
const struct m_obj_list *ol = opt->priv;
assert(opt->priv);
if (bstr_endswith0(name, "-add")) {
op = OP_ADD;
} else if (bstr_endswith0(name, "-append")) {
op = OP_APPEND;
} else if (bstr_endswith0(name, "-set")) {
op = OP_NONE;
} else if (bstr_endswith0(name, "-pre")) {
op = OP_PRE;
} else if (bstr_endswith0(name, "-del")) {
op = OP_DEL;
mp_warn(log, "Option %.*s: -del is deprecated! "
"Use -remove (removes by content instead of by index).\n",
BSTR_P(name));
} else if (bstr_endswith0(name, "-remove")) {
op = OP_REMOVE;
} else if (bstr_endswith0(name, "-clr")) {
op = OP_CLR;
} else if (bstr_endswith0(name, "-toggle")) {
op = OP_TOGGLE;
} else if (bstr_endswith0(name, "-help")) {
mp_err(log, "Option %s:\n"
"Supported operations are:\n"
" %s-set\n"
" Overwrite the old list with the given list\n\n"
" %s-append\n"
" Append the given filter to the current list\n\n"
" %s-add\n"
" Append the given list to the current list\n\n"
" %s-pre\n"
" Prepend the given list to the current list\n\n"
" %s-remove\n"
" Remove the given filter from the current list\n\n"
" %s-del x,y,...\n"
" Remove the given elements. Take the list element index (starting from 0).\n"
" Negative index can be used (i.e. -1 is the last element).\n"
" Filter names work as well.\n\n"
" %s-toggle\n"
" Add the filter to the list, or remove it if it's already added.\n\n"
" %s-clr\n"
" Clear the current list.\n\n",
opt->name, opt->name, opt->name, opt->name, opt->name,
opt->name, opt->name, opt->name, opt->name);
return M_OPT_EXIT;
}
if (!bstrcmp0(param, "help")) {
mp_info(log, "Available %s:\n", ol->description);
for (int n = 0; ; n++) {
struct m_obj_desc desc;
if (!ol->get_desc(&desc, n))
break;
if (!desc.hidden) {
mp_info(log, " %-16s %s\n",
desc.name, desc.description);
}
}
mp_info(log, "\n");
if (ol->print_help_list)
ol->print_help_list(log);
if (!ol->use_global_options) {
mp_info(log, "Get help on individual entries via: --%s=entry=help\n",
opt->name);
}
return M_OPT_EXIT;
}
if (op == OP_CLR) {
if (param.len) {
mp_err(log, "Option %.*s: -clr does not take an argument.\n",
BSTR_P(name));
return M_OPT_INVALID;
}
if (dst)
free_obj_settings_list(dst);
return 0;
} else if (op == OP_DEL || op == OP_REMOVE) {
mark_del = talloc_zero_array(NULL, bool, num_items + 1);
}
if (op != OP_NONE && param.len == 0)
return M_OPT_MISSING_PARAM;
while (param.len > 0) {
int r = 0;
if (op == OP_DEL || op == OP_REMOVE)
r = parse_obj_settings_del(log, name, &param, op, dst, mark_del);
if (r == 0) {
r = parse_obj_settings(log, name, op, &param, ol, dst ? &res : NULL);
}
if (r < 0)
return r;
if (param.len > 0) {
const char sep[2] = {OPTION_LIST_SEPARATOR, 0};
if (!bstr_eatstart0(&param, sep))
return M_OPT_INVALID;
if (param.len == 0) {
if (!ol->allow_trailer)
return M_OPT_INVALID;
if (dst) {
m_obj_settings_t item = {
.name = talloc_strdup(NULL, ""),
};
obj_settings_list_insert_at(&res, -1, &item);
}
}
}
}
if (op != OP_NONE && res && res[0].name && res[1].name) {
if (op == OP_APPEND) {
mp_err(log, "Option %.*s: -append takes only 1 filter (no ',').\n",
BSTR_P(name));
return M_OPT_INVALID;
}
mp_warn(log, "Passing more than 1 argument to %.*s is deprecated!\n",
BSTR_P(name));
}
if (dst) {
m_obj_settings_t *list = VAL(dst);
if (op == OP_PRE) {
int prepend_counter = 0;
for (int n = 0; res && res[n].name; n++) {
int label = obj_settings_list_find_by_label0(list, res[n].label);
if (label < 0) {
obj_settings_list_insert_at(&list, prepend_counter, &res[n]);
prepend_counter++;
} else {
// Prefer replacement semantics, instead of actually
// prepending.
obj_setting_free(&list[label]);
list[label] = res[n];
}
}
talloc_free(res);
} else if (op == OP_ADD || op == OP_APPEND) {
for (int n = 0; res && res[n].name; n++) {
int label = obj_settings_list_find_by_label0(list, res[n].label);
if (label < 0) {
obj_settings_list_insert_at(&list, -1, &res[n]);
} else {
// Prefer replacement semantics, instead of actually
// appending.
obj_setting_free(&list[label]);
list[label] = res[n];
}
}
talloc_free(res);
} else if (op == OP_TOGGLE) {
for (int n = 0; res && res[n].name; n++) {
if (res[n].label && !res[n].name[0]) {
// Toggle enable/disable special case.
int found =
obj_settings_list_find_by_label0(list, res[n].label);
if (found < 0) {
mp_warn(log, "Option %.*s: Label %s not found\n",
BSTR_P(name), res[n].label);
} else {
list[found].enabled = !list[found].enabled;
}
obj_setting_free(&res[n]);
} else {
int found = obj_settings_find_by_content(list, &res[n]);
if (found < 0) {
obj_settings_list_insert_at(&list, -1, &res[n]);
} else {
obj_settings_list_del_at(&list, found);
obj_setting_free(&res[n]);
}
}
}
talloc_free(res);
} else if (op == OP_DEL || op == OP_REMOVE) {
for (int n = num_items - 1; n >= 0; n--) {
if (mark_del[n])
obj_settings_list_del_at(&list, n);
}
for (int n = 0; res && res[n].name; n++) {
int found = obj_settings_find_by_content(list, &res[n]);
if (found < 0) {
if (op == OP_DEL)
mp_warn(log, "Option %.*s: Item not found\n", BSTR_P(name));
} else {
obj_settings_list_del_at(&list, found);
}
}
free_obj_settings_list(&res);
} else {
assert(op == OP_NONE);
free_obj_settings_list(&list);
list = res;
}
VAL(dst) = list;
}
talloc_free(mark_del);
return 1;
}
static void append_param(char **res, char *param)
{
if (strspn(param, NAMECH) == strlen(param)) {
*res = talloc_strdup_append(*res, param);
} else {
// Simple escaping: %BYTECOUNT%STRING
*res = talloc_asprintf_append(*res, "%%%zd%%%s", strlen(param), param);
}
}
static char *print_obj_settings_list(const m_option_t *opt, const void *val)
{
m_obj_settings_t *list = VAL(val);
char *res = talloc_strdup(NULL, "");
for (int n = 0; list && list[n].name; n++) {
m_obj_settings_t *entry = &list[n];
if (n > 0)
res = talloc_strdup_append(res, ",");
// Assume labels and names don't need escaping
if (entry->label && entry->label[0])
res = talloc_asprintf_append(res, "@%s:", entry->label);
if (!entry->enabled)
res = talloc_strdup_append(res, "!");
res = talloc_strdup_append(res, entry->name);
if (entry->attribs && entry->attribs[0]) {
res = talloc_strdup_append(res, "=");
for (int i = 0; entry->attribs[i * 2 + 0]; i++) {
if (i > 0)
res = talloc_strdup_append(res, ":");
append_param(&res, entry->attribs[i * 2 + 0]);
res = talloc_strdup_append(res, "=");
append_param(&res, entry->attribs[i * 2 + 1]);
}
}
}
return res;
}
static int set_obj_settings_list(const m_option_t *opt, void *dst,
struct mpv_node *src)
{
if (src->format != MPV_FORMAT_NODE_ARRAY)
return M_OPT_INVALID;
m_obj_settings_t *entries =
talloc_zero_array(NULL, m_obj_settings_t, src->u.list->num + 1);
for (int n = 0; n < src->u.list->num; n++) {
m_obj_settings_t *entry = &entries[n];
entry->enabled = true;
if (src->u.list->values[n].format != MPV_FORMAT_NODE_MAP)
goto error;
struct mpv_node_list *src_entry = src->u.list->values[n].u.list;
for (int i = 0; i < src_entry->num; i++) {
const char *key = src_entry->keys[i];
struct mpv_node *val = &src_entry->values[i];
if (strcmp(key, "name") == 0) {
if (val->format != MPV_FORMAT_STRING)
goto error;
entry->name = talloc_strdup(NULL, val->u.string);
} else if (strcmp(key, "label") == 0) {
if (val->format != MPV_FORMAT_STRING)
goto error;
entry->label = talloc_strdup(NULL, val->u.string);
} else if (strcmp(key, "enabled") == 0) {
if (val->format != MPV_FORMAT_FLAG)
goto error;
entry->enabled = val->u.flag;
} else if (strcmp(key, "params") == 0) {
if (val->format != MPV_FORMAT_NODE_MAP)
goto error;
struct mpv_node_list *src_params = val->u.list;
entry->attribs =
talloc_zero_array(NULL, char*, (src_params->num + 1) * 2);
for (int x = 0; x < src_params->num; x++) {
if (src_params->values[x].format != MPV_FORMAT_STRING)
goto error;
entry->attribs[x * 2 + 0] =
talloc_strdup(NULL, src_params->keys[x]);
entry->attribs[x * 2 + 1] =
talloc_strdup(NULL, src_params->values[x].u.string);
}
}
}
}
free_obj_settings_list(dst);
VAL(dst) = entries;
return 0;
error:
free_obj_settings_list(&entries);
return M_OPT_INVALID;
}
static struct mpv_node *add_array_entry(struct mpv_node *dst)
{
struct mpv_node_list *list = dst->u.list;
assert(dst->format == MPV_FORMAT_NODE_ARRAY&& dst->u.list);
MP_TARRAY_GROW(list, list->values, list->num);
return &list->values[list->num++];
}
static struct mpv_node *add_map_entry(struct mpv_node *dst, const char *key)
{
struct mpv_node_list *list = dst->u.list;
assert(dst->format == MPV_FORMAT_NODE_MAP && dst->u.list);
MP_TARRAY_GROW(list, list->values, list->num);
MP_TARRAY_GROW(list, list->keys, list->num);
list->keys[list->num] = talloc_strdup(list, key);
return &list->values[list->num++];
}
static void add_map_string(struct mpv_node *dst, const char *key, const char *val)
{
struct mpv_node *entry = add_map_entry(dst, key);
entry->format = MPV_FORMAT_STRING;
entry->u.string = talloc_strdup(dst->u.list, val);
}
static int get_obj_settings_list(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *val)
{
m_obj_settings_t *list = VAL(val);
dst->format = MPV_FORMAT_NODE_ARRAY;
dst->u.list = talloc_zero(ta_parent, struct mpv_node_list);
ta_parent = dst->u.list;
for (int n = 0; list && list[n].name; n++) {
m_obj_settings_t *entry = &list[n];
struct mpv_node *nentry = add_array_entry(dst);
nentry->format = MPV_FORMAT_NODE_MAP;
nentry->u.list = talloc_zero(ta_parent, struct mpv_node_list);
add_map_string(nentry, "name", entry->name);
if (entry->label && entry->label[0])
add_map_string(nentry, "label", entry->label);
struct mpv_node *enabled = add_map_entry(nentry, "enabled");
enabled->format = MPV_FORMAT_FLAG;
enabled->u.flag = entry->enabled;
struct mpv_node *params = add_map_entry(nentry, "params");
params->format = MPV_FORMAT_NODE_MAP;
params->u.list = talloc_zero(ta_parent, struct mpv_node_list);
for (int i = 0; entry->attribs && entry->attribs[i * 2 + 0]; i++) {
add_map_string(params, entry->attribs[i * 2 + 0],
entry->attribs[i * 2 + 1]);
}
}
return 1;
}
static bool obj_settings_list_equal(const m_option_t *opt, void *pa, void *pb)
{
struct m_obj_settings *a = VAL(pa);
struct m_obj_settings *b = VAL(pb);
if (a == b || !a || !b)
return a == b || (!a && !b[0].name) || (!b && !a[0].name);
for (int n = 0; a[n].name || b[n].name; n++) {
if (!a[n].name || !b[n].name)
return false;
if (!m_obj_settings_equal(&a[n], &b[n]))
return false;
}
return true;
}
bool m_obj_settings_equal(struct m_obj_settings *a, struct m_obj_settings *b)
{
if (!str_equal(NULL, &a->name, &b->name))
return false;
if (!str_equal(NULL, &a->label, &b->label))
return false;
if (a->enabled != b->enabled)
return false;
return str_list_equal(NULL, &a->attribs, &b->attribs);
}
const m_option_type_t m_option_type_obj_settings_list = {
.name = "Object settings list",
.size = sizeof(m_obj_settings_t *),
.parse = parse_obj_settings_list,
.print = print_obj_settings_list,
.copy = copy_obj_settings_list,
.free = free_obj_settings_list,
.set = set_obj_settings_list,
.get = get_obj_settings_list,
.equal = obj_settings_list_equal,
.actions = (const struct m_option_action[]){
{"add"},
{"append"},
{"clr", M_OPT_TYPE_OPTIONAL_PARAM},
{"del"},
{"help", M_OPT_TYPE_OPTIONAL_PARAM},
{"pre"},
{"set"},
{"toggle"},
{"remove"},
{0}
},
};
#undef VAL
#define VAL(x) (*(struct mpv_node *)(x))
static int parse_node(struct mp_log *log, const m_option_t *opt,
struct bstr name, struct bstr param, void *dst)
{
// Maybe use JSON?
mp_err(log, "option type doesn't accept strings");
return M_OPT_INVALID;
}
static char *print_node(const m_option_t *opt, const void *val)
{
char *t = talloc_strdup(NULL, "");
if (json_write(&t, &VAL(val)) < 0) {
talloc_free(t);
t = NULL;
}
return t;
}
static char *pretty_print_node(const m_option_t *opt, const void *val)
{
char *t = talloc_strdup(NULL, "");
if (json_write_pretty(&t, &VAL(val)) < 0) {
talloc_free(t);
t = NULL;
}
return t;
}
static void dup_node(void *ta_parent, struct mpv_node *node)
{
switch (node->format) {
case MPV_FORMAT_STRING:
node->u.string = talloc_strdup(ta_parent, node->u.string);
break;
case MPV_FORMAT_NODE_ARRAY:
case MPV_FORMAT_NODE_MAP: {
struct mpv_node_list *oldlist = node->u.list;
struct mpv_node_list *new = talloc_zero(ta_parent, struct mpv_node_list);
node->u.list = new;
if (oldlist->num > 0) {
*new = *oldlist;
new->values = talloc_array(new, struct mpv_node, new->num);
for (int n = 0; n < new->num; n++) {
new->values[n] = oldlist->values[n];
dup_node(new, &new->values[n]);
}
if (node->format == MPV_FORMAT_NODE_MAP) {
new->keys = talloc_array(new, char*, new->num);
for (int n = 0; n < new->num; n++)
new->keys[n] = talloc_strdup(new, oldlist->keys[n]);
}
}
break;
}
case MPV_FORMAT_BYTE_ARRAY: {
struct mpv_byte_array *old = node->u.ba;
struct mpv_byte_array *new = talloc_zero(ta_parent, struct mpv_byte_array);
node->u.ba = new;
if (old->size > 0) {
*new = *old;
new->data = talloc_memdup(new, old->data, old->size);
}
break;
}
case MPV_FORMAT_NONE:
case MPV_FORMAT_FLAG:
case MPV_FORMAT_INT64:
case MPV_FORMAT_DOUBLE:
break;
default:
// unknown entry - mark as invalid
node->format = (mpv_format)-1;
}
}
static void copy_node(const m_option_t *opt, void *dst, const void *src)
{
assert(sizeof(struct mpv_node) <= sizeof(union m_option_value));
if (!(dst && src))
return;
opt->type->free(dst);
VAL(dst) = VAL(src);
dup_node(NULL, &VAL(dst));
}
void *node_get_alloc(struct mpv_node *node)
{
// Assume it was allocated with copy_node(), which allocates all
// sub-nodes with the parent node as talloc parent.
switch (node->format) {
case MPV_FORMAT_STRING:
return node->u.string;
case MPV_FORMAT_NODE_ARRAY:
case MPV_FORMAT_NODE_MAP:
return node->u.list;
default:
return NULL;
}
}
static void free_node(void *src)
{
if (src) {
struct mpv_node *node = &VAL(src);
talloc_free(node_get_alloc(node));
*node = (struct mpv_node){{0}};
}
}
// idempotent functions for convenience
static int node_set(const m_option_t *opt, void *dst, struct mpv_node *src)
{
copy_node(opt, dst, src);
return 1;
}
static int node_get(const m_option_t *opt, void *ta_parent,
struct mpv_node *dst, void *src)
{
*dst = VAL(src);
dup_node(ta_parent, dst);
return 1;
}
static bool node_equal(const m_option_t *opt, void *a, void *b)
{
return equal_mpv_node(&VAL(a), &VAL(b));
}
const m_option_type_t m_option_type_node = {
.name = "Complex",
.size = sizeof(struct mpv_node),
.parse = parse_node,
.print = print_node,
.pretty_print = pretty_print_node,
.copy = copy_node,
.free = free_node,
.set = node_set,
.get = node_get,
.equal = node_equal,
};
// Special-cased by m_config.c.
const m_option_type_t m_option_type_alias = {
.name = "alias",
};
const m_option_type_t m_option_type_cli_alias = {
.name = "alias",
};
const m_option_type_t m_option_type_removed = {
.name = "removed",
};
const m_option_type_t m_option_type_subconfig = {
.name = "Subconfig",
};
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