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mpv/options/m_option.c
Dudemanguy 1df0a42a8c m_option: change m_option_type_aspect to double 
This specific option type is only used for the video aspect. The
underlying type was a float to represent the inputted value, but it's
actually not precise enough. When using something like 4:3, the values
of the incorrect digits are actually significant enough to make av_d2q
return a very funky numerator and denominator which is close to 4/3 but
not quite. This leads to some "off by one pixel" errors. Weirdly, mpv's
actual calculations for this were already being done as double, but then
converted to floats for this specific type. Just drop the conversion
step and leave it all as double which has the precision we need (i.e.
AVRational is now 4/3 for the this case). Fixes #8190.
2023-08-09 13:51:28 +00:00

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU 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_f3(const m_option_t *opt, const void *val)
{
double f = VAL(val);
if (isnan(f))
return print_double(opt, val);
return talloc_asprintf(NULL, "%.3f", 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_f3,
.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_f3,
.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_f3(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,
};
#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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