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m_config: improve option list output a bit

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This is printed with --list-options or e.g. --vf=lavfi=help.

Note that in theory, the options should be able to print their own help,
and we shouldn't special case certain types (like m_option_type_choice
in the commit). But that is too hairy for now, so we don't do it.
This commit is contained in:
wm4 2013-07-21 20:16:46 +02:00
parent 6629a95b92
commit 560738ddef
2 changed files with 27 additions and 19 deletions
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44
core/m_config.c
View File

@ -655,28 +655,36 @@ void m_config_print_option_list(const struct m_config *config)
if (!config->opts)
return;
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO,
"\n Name Type Min Max Global Cfg\n\n");
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "Options:\n\n");
for (co = config->opts; co; co = co->next) {
const struct m_option *opt = co->opt;
if (opt->type->flags & M_OPT_TYPE_HAS_CHILD)
continue;
if (opt->flags & M_OPT_MIN)
sprintf(min, "%-8.0f", opt->min);
else
strcpy(min, "No");
if (opt->flags & M_OPT_MAX)
sprintf(max, "%-8.0f", opt->max);
else
strcpy(max, "No");
mp_msg(MSGT_CFGPARSER, MSGL_INFO,
" %-20.20s %-15.15s %-10.10s %-10.10s %-3.3s %-3.3s\n",
co->name,
co->opt->type->name,
min,
max,
opt->flags & CONF_GLOBAL ? "Yes" : "No",
opt->flags & CONF_NOCFG ? "No" : "Yes");
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %-30.30s", co->name);
if (opt->type == &m_option_type_choice) {
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " Choices:");
struct m_opt_choice_alternatives *alt = opt->priv;
for (int n = 0; alt[n].name; n++)
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s", alt[n].name);
if (opt->flags & (M_OPT_MIN | M_OPT_MAX))
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " (or an integer)");
} else {
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s", co->opt->type->name);
}
if (opt->flags & (M_OPT_MIN | M_OPT_MAX)) {
snprintf(min, sizeof(min), "any");
snprintf(max, sizeof(max), "any");
if (opt->flags & M_OPT_MIN)
snprintf(min, sizeof(min), "%g", opt->min);
if (opt->flags & M_OPT_MAX)
snprintf(max, sizeof(max), "%g", opt->max);
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " (%s to %s)", min, max);
}
if (opt->flags & CONF_GLOBAL)
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " [global]");
if (opt->flags & CONF_NOCFG)
mp_msg(MSGT_CFGPARSER, MSGL_INFO, " [nocfg]");
mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
count++;
}
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "\nTotal: %d options\n", count);

2
core/m_option.c
View File

@ -2098,7 +2098,7 @@ static int parse_obj_settings(struct bstr opt, struct bstr *pstr,
*pstr = bstr_cut(*pstr, next);
if (!bstrcmp0(param, "help")) {
mp_msg(MSGT_CFGPARSER, MSGL_INFO,
"Option %.*s: %.*s have no option description.\n",
"Option %.*s: %.*s has no option description.\n",
BSTR_P(opt), BSTR_P(str));
return M_OPT_EXIT - 1;
}